blob: 2de424a3c07d41daac3ac700b7326bf1a35c3add [file] [log] [blame]
Christopher Faulet51dbc942018-09-13 09:05:15 +02001/*
2 * HTT/1 mux-demux for connections
3 *
4 * Copyright 2018 Christopher Faulet <cfaulet@haproxy.com>
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
10 *
11 */
Willy Tarreaub2551052020-06-09 09:07:15 +020012#include <import/ebistree.h>
13
Willy Tarreau4c7e4b72020-05-27 12:58:42 +020014#include <haproxy/api.h>
Willy Tarreau6be78492020-06-05 00:00:29 +020015#include <haproxy/cfgparse.h>
Willy Tarreau7ea393d2020-06-04 18:02:10 +020016#include <haproxy/connection.h>
Willy Tarreau5413a872020-06-02 19:33:08 +020017#include <haproxy/h1.h>
Willy Tarreauc6fe8842020-06-04 09:00:02 +020018#include <haproxy/h1_htx.h>
Willy Tarreaubf073142020-06-03 12:04:01 +020019#include <haproxy/h2.h>
Willy Tarreaub2551052020-06-09 09:07:15 +020020#include <haproxy/http_htx.h>
Willy Tarreau16f958c2020-06-03 08:44:35 +020021#include <haproxy/htx.h>
Willy Tarreaub2551052020-06-09 09:07:15 +020022#include <haproxy/istbuf.h>
23#include <haproxy/log.h>
Willy Tarreau551271d2020-06-04 08:32:23 +020024#include <haproxy/pipe-t.h>
Willy Tarreauadc02402021-05-08 20:28:54 +020025#include <haproxy/proxy.h>
Willy Tarreau48d25b32020-06-04 18:58:52 +020026#include <haproxy/session-t.h>
Willy Tarreaudfd3de82020-06-04 23:46:14 +020027#include <haproxy/stream.h>
Willy Tarreau5e539c92020-06-04 20:45:39 +020028#include <haproxy/stream_interface.h>
Willy Tarreauc6d61d72020-06-04 19:02:42 +020029#include <haproxy/trace.h>
Christopher Faulet51dbc942018-09-13 09:05:15 +020030
31/*
32 * H1 Connection flags (32 bits)
33 */
34#define H1C_F_NONE 0x00000000
35
36/* Flags indicating why writing output data are blocked */
37#define H1C_F_OUT_ALLOC 0x00000001 /* mux is blocked on lack of output buffer */
38#define H1C_F_OUT_FULL 0x00000002 /* mux is blocked on output buffer full */
39/* 0x00000004 - 0x00000008 unused */
40
41/* Flags indicating why reading input data are blocked. */
42#define H1C_F_IN_ALLOC 0x00000010 /* mux is blocked on lack of input buffer */
43#define H1C_F_IN_FULL 0x00000020 /* mux is blocked on input buffer full */
Christopher Fauletd17ad822020-09-24 15:14:29 +020044#define H1C_F_IN_SALLOC 0x00000040 /* mux is blocked on lack of stream's request buffer */
Christopher Faulet51dbc942018-09-13 09:05:15 +020045
Christopher Faulet7b109f22019-12-05 11:18:31 +010046/* Flags indicating the connection state */
Christopher Faulet3ced1d12020-11-27 16:44:01 +010047#define H1C_F_ST_EMBRYONIC 0x00000100 /* Set when a H1 stream with no conn-stream is attached to the connection */
Christopher Faulet39c7b6b2021-01-21 17:44:35 +010048#define H1C_F_ST_ATTACHED 0x00000200 /* Set when a H1 stream with a conn-stream is attached to the connection (may be not READY) */
Christopher Faulet3ced1d12020-11-27 16:44:01 +010049#define H1C_F_ST_IDLE 0x00000400 /* connection is idle and may be reused
50 * (exclusive to all H1C_F_ST flags and never set when an h1s is attached) */
51#define H1C_F_ST_ERROR 0x00000800 /* connection must be closed ASAP because an error occurred (conn-stream may still be attached) */
52#define H1C_F_ST_SHUTDOWN 0x00001000 /* connection must be shut down ASAP flushing output first (conn-stream may still be attached) */
Christopher Faulet39c7b6b2021-01-21 17:44:35 +010053#define H1C_F_ST_READY 0x00002000 /* Set in ATTACHED state with a READY conn-stream. A conn-stream is not ready when
54 * a TCP>H1 upgrade is in progress Thus this flag is only set if ATTACHED is also set */
Christopher Faulet3ced1d12020-11-27 16:44:01 +010055#define H1C_F_ST_ALIVE (H1C_F_ST_IDLE|H1C_F_ST_EMBRYONIC|H1C_F_ST_ATTACHED)
Christopher Fauletbde7e052021-11-15 14:51:37 +010056#define H1C_F_ST_SILENT_SHUT 0x00004000 /* silent (or dirty) shutdown must be performed (implied ST_SHUTDOWN) */
Christopher Fauletdb451fb2021-10-27 15:36:38 +020057/* 0x00008000 unused */
Christopher Faulet51dbc942018-09-13 09:05:15 +020058
Christopher Fauletb385b502021-01-13 18:47:57 +010059#define H1C_F_WANT_SPLICE 0x00010000 /* Don't read into a buffer because we want to use or we are using splicing */
60#define H1C_F_ERR_PENDING 0x00020000 /* Send an error and close the connection ASAP (implies H1C_F_ST_ERROR) */
61#define H1C_F_WAIT_NEXT_REQ 0x00040000 /* waiting for the next request to start, use keep-alive timeout */
62#define H1C_F_UPG_H2C 0x00080000 /* set if an upgrade to h2 should be done */
63#define H1C_F_CO_MSG_MORE 0x00100000 /* set if CO_SFL_MSG_MORE must be set when calling xprt->snd_buf() */
64#define H1C_F_CO_STREAMER 0x00200000 /* set if CO_SFL_STREAMER must be set when calling xprt->snd_buf() */
Christopher Faulet129817b2018-09-20 16:14:40 +020065
Christopher Faulet10a86702021-04-07 14:18:11 +020066/* 0x00400000 - 0x40000000 unusued*/
Christopher Faulet3ced1d12020-11-27 16:44:01 +010067#define H1C_F_IS_BACK 0x80000000 /* Set on outgoing connection */
Christopher Faulet46230362019-10-17 16:04:20 +020068
Christopher Faulet51dbc942018-09-13 09:05:15 +020069/*
70 * H1 Stream flags (32 bits)
71 */
Christopher Faulet129817b2018-09-20 16:14:40 +020072#define H1S_F_NONE 0x00000000
Christopher Faulet10a86702021-04-07 14:18:11 +020073
74#define H1S_F_RX_BLK 0x00100000 /* Don't process more input data, waiting sync with output side */
75#define H1S_F_TX_BLK 0x00200000 /* Don't process more output data, waiting sync with input side */
Christopher Faulet58f21da2021-09-20 07:47:27 +020076#define H1S_F_RX_CONGESTED 0x00000004 /* Cannot process input data RX path is congested (waiting for more space in channel's buffer) */
77
Willy Tarreauc493c9c2019-06-03 14:18:22 +020078#define H1S_F_REOS 0x00000008 /* End of input stream seen even if not delivered yet */
Christopher Fauletf2824e62018-10-01 12:12:37 +020079#define H1S_F_WANT_KAL 0x00000010
80#define H1S_F_WANT_TUN 0x00000020
81#define H1S_F_WANT_CLO 0x00000040
82#define H1S_F_WANT_MSK 0x00000070
83#define H1S_F_NOT_FIRST 0x00000080 /* The H1 stream is not the first one */
Christopher Faulet5696f542020-12-02 16:08:38 +010084#define H1S_F_BODYLESS_RESP 0x00000100 /* Bodyless response message */
Christopher Faulet60ef12c2020-09-24 10:05:44 +020085
Ilya Shipitsinacf84592021-02-06 22:29:08 +050086/* 0x00000200 unused */
Christopher Faulet2eed8002020-12-07 11:26:13 +010087#define H1S_F_NOT_IMPL_ERROR 0x00000400 /* Set when a feature is not implemented during the message parsing */
Christopher Faulet60ef12c2020-09-24 10:05:44 +020088#define H1S_F_PARSING_ERROR 0x00000800 /* Set when an error occurred during the message parsing */
89#define H1S_F_PROCESSING_ERROR 0x00001000 /* Set when an error occurred during the message xfer */
90#define H1S_F_ERROR 0x00001800 /* stream error mask */
91
Christopher Faulet72ba6cd2019-09-24 16:20:05 +020092#define H1S_F_HAVE_SRV_NAME 0x00002000 /* Set during output process if the server name header was added to the request */
Christopher Fauletada34b62019-05-24 16:36:43 +020093#define H1S_F_HAVE_O_CONN 0x00004000 /* Set during output process to know connection mode was processed */
Christopher Faulet51dbc942018-09-13 09:05:15 +020094
95/* H1 connection descriptor */
Christopher Faulet51dbc942018-09-13 09:05:15 +020096struct h1c {
97 struct connection *conn;
98 struct proxy *px;
99 uint32_t flags; /* Connection flags: H1C_F_* */
Christopher Fauletc18fc232020-10-06 17:41:36 +0200100 unsigned int errcode; /* Status code when an error occurred at the H1 connection level */
Christopher Faulet51dbc942018-09-13 09:05:15 +0200101 struct buffer ibuf; /* Input buffer to store data before parsing */
102 struct buffer obuf; /* Output buffer to store data after reformatting */
103
104 struct buffer_wait buf_wait; /* Wait list for buffer allocation */
105 struct wait_event wait_event; /* To be used if we're waiting for I/Os */
106
107 struct h1s *h1s; /* H1 stream descriptor */
Christopher Fauletb8093cf2019-01-03 16:27:28 +0100108 struct task *task; /* timeout management task */
Christopher Fauletdbe57792020-10-05 17:50:58 +0200109 int idle_exp; /* idle expiration date (http-keep-alive or http-request timeout) */
110 int timeout; /* client/server timeout duration */
111 int shut_timeout; /* client-fin/server-fin timeout duration */
Christopher Faulet51dbc942018-09-13 09:05:15 +0200112};
113
114/* H1 stream descriptor */
115struct h1s {
116 struct h1c *h1c;
117 struct conn_stream *cs;
Christopher Fauletfeb11742018-11-29 15:12:34 +0100118 uint32_t flags; /* Connection flags: H1S_F_* */
Christopher Faulet51dbc942018-09-13 09:05:15 +0200119
Willy Tarreau1b0d4d12020-01-16 11:03:19 +0100120 struct wait_event *subs; /* Address of the wait_event the conn_stream associated is waiting on */
Christopher Faulet129817b2018-09-20 16:14:40 +0200121
Olivier Houchardf502aca2018-12-14 19:42:40 +0100122 struct session *sess; /* Associated session */
Christopher Fauletd17ad822020-09-24 15:14:29 +0200123 struct buffer rxbuf; /* receive buffer, always valid (buf_empty or real buffer) */
Christopher Faulet129817b2018-09-20 16:14:40 +0200124 struct h1m req;
125 struct h1m res;
126
Ilya Shipitsin47d17182020-06-21 21:42:57 +0500127 enum http_meth_t meth; /* HTTP request method */
Christopher Faulet129817b2018-09-20 16:14:40 +0200128 uint16_t status; /* HTTP response status */
Amaury Denoyellec1938232020-12-11 17:53:03 +0100129
130 char ws_key[25]; /* websocket handshake key */
Christopher Faulet51dbc942018-09-13 09:05:15 +0200131};
132
Christopher Faulet98fbe952019-07-22 16:18:24 +0200133/* Map of headers used to convert outgoing headers */
134struct h1_hdrs_map {
135 char *name;
136 struct eb_root map;
137};
138
139/* An entry in a headers map */
140struct h1_hdr_entry {
141 struct ist name;
142 struct ebpt_node node;
143};
144
145/* Declare the headers map */
146static struct h1_hdrs_map hdrs_map = { .name = NULL, .map = EB_ROOT };
147
148
Christopher Faulet6b81df72019-10-01 22:08:43 +0200149/* trace source and events */
150static void h1_trace(enum trace_level level, uint64_t mask,
151 const struct trace_source *src,
152 const struct ist where, const struct ist func,
153 const void *a1, const void *a2, const void *a3, const void *a4);
154
155/* The event representation is split like this :
156 * h1c - internal H1 connection
157 * h1s - internal H1 stream
158 * strm - application layer
159 * rx - data receipt
160 * tx - data transmission
161 *
162 */
163static const struct trace_event h1_trace_events[] = {
164#define H1_EV_H1C_NEW (1ULL << 0)
165 { .mask = H1_EV_H1C_NEW, .name = "h1c_new", .desc = "new H1 connection" },
166#define H1_EV_H1C_RECV (1ULL << 1)
167 { .mask = H1_EV_H1C_RECV, .name = "h1c_recv", .desc = "Rx on H1 connection" },
168#define H1_EV_H1C_SEND (1ULL << 2)
169 { .mask = H1_EV_H1C_SEND, .name = "h1c_send", .desc = "Tx on H1 connection" },
170#define H1_EV_H1C_BLK (1ULL << 3)
171 { .mask = H1_EV_H1C_BLK, .name = "h1c_blk", .desc = "H1 connection blocked" },
172#define H1_EV_H1C_WAKE (1ULL << 4)
173 { .mask = H1_EV_H1C_WAKE, .name = "h1c_wake", .desc = "H1 connection woken up" },
174#define H1_EV_H1C_END (1ULL << 5)
175 { .mask = H1_EV_H1C_END, .name = "h1c_end", .desc = "H1 connection terminated" },
176#define H1_EV_H1C_ERR (1ULL << 6)
177 { .mask = H1_EV_H1C_ERR, .name = "h1c_err", .desc = "error on H1 connection" },
178
179#define H1_EV_RX_DATA (1ULL << 7)
180 { .mask = H1_EV_RX_DATA, .name = "rx_data", .desc = "receipt of any H1 data" },
181#define H1_EV_RX_EOI (1ULL << 8)
182 { .mask = H1_EV_RX_EOI, .name = "rx_eoi", .desc = "receipt of end of H1 input" },
183#define H1_EV_RX_HDRS (1ULL << 9)
184 { .mask = H1_EV_RX_HDRS, .name = "rx_headers", .desc = "receipt of H1 headers" },
185#define H1_EV_RX_BODY (1ULL << 10)
186 { .mask = H1_EV_RX_BODY, .name = "rx_body", .desc = "receipt of H1 body" },
187#define H1_EV_RX_TLRS (1ULL << 11)
188 { .mask = H1_EV_RX_TLRS, .name = "rx_trailerus", .desc = "receipt of H1 trailers" },
189
190#define H1_EV_TX_DATA (1ULL << 12)
191 { .mask = H1_EV_TX_DATA, .name = "tx_data", .desc = "transmission of any H1 data" },
192#define H1_EV_TX_EOI (1ULL << 13)
193 { .mask = H1_EV_TX_EOI, .name = "tx_eoi", .desc = "transmission of end of H1 input" },
194#define H1_EV_TX_HDRS (1ULL << 14)
195 { .mask = H1_EV_TX_HDRS, .name = "tx_headers", .desc = "transmission of all headers" },
196#define H1_EV_TX_BODY (1ULL << 15)
197 { .mask = H1_EV_TX_BODY, .name = "tx_body", .desc = "transmission of H1 body" },
198#define H1_EV_TX_TLRS (1ULL << 16)
199 { .mask = H1_EV_TX_TLRS, .name = "tx_trailerus", .desc = "transmission of H1 trailers" },
200
201#define H1_EV_H1S_NEW (1ULL << 17)
202 { .mask = H1_EV_H1S_NEW, .name = "h1s_new", .desc = "new H1 stream" },
203#define H1_EV_H1S_BLK (1ULL << 18)
204 { .mask = H1_EV_H1S_BLK, .name = "h1s_blk", .desc = "H1 stream blocked" },
205#define H1_EV_H1S_END (1ULL << 19)
206 { .mask = H1_EV_H1S_END, .name = "h1s_end", .desc = "H1 stream terminated" },
207#define H1_EV_H1S_ERR (1ULL << 20)
208 { .mask = H1_EV_H1S_ERR, .name = "h1s_err", .desc = "error on H1 stream" },
209
210#define H1_EV_STRM_NEW (1ULL << 21)
211 { .mask = H1_EV_STRM_NEW, .name = "strm_new", .desc = "app-layer stream creation" },
212#define H1_EV_STRM_RECV (1ULL << 22)
213 { .mask = H1_EV_STRM_RECV, .name = "strm_recv", .desc = "receiving data for stream" },
214#define H1_EV_STRM_SEND (1ULL << 23)
215 { .mask = H1_EV_STRM_SEND, .name = "strm_send", .desc = "sending data for stream" },
216#define H1_EV_STRM_WAKE (1ULL << 24)
217 { .mask = H1_EV_STRM_WAKE, .name = "strm_wake", .desc = "stream woken up" },
218#define H1_EV_STRM_SHUT (1ULL << 25)
219 { .mask = H1_EV_STRM_SHUT, .name = "strm_shut", .desc = "stream shutdown" },
220#define H1_EV_STRM_END (1ULL << 26)
221 { .mask = H1_EV_STRM_END, .name = "strm_end", .desc = "detaching app-layer stream" },
222#define H1_EV_STRM_ERR (1ULL << 27)
223 { .mask = H1_EV_STRM_ERR, .name = "strm_err", .desc = "stream error" },
224
225 { }
226};
227
228static const struct name_desc h1_trace_lockon_args[4] = {
229 /* arg1 */ { /* already used by the connection */ },
230 /* arg2 */ { .name="h1s", .desc="H1 stream" },
231 /* arg3 */ { },
232 /* arg4 */ { }
233};
234
235static const struct name_desc h1_trace_decoding[] = {
236#define H1_VERB_CLEAN 1
237 { .name="clean", .desc="only user-friendly stuff, generally suitable for level \"user\"" },
238#define H1_VERB_MINIMAL 2
239 { .name="minimal", .desc="report only h1c/h1s state and flags, no real decoding" },
240#define H1_VERB_SIMPLE 3
241 { .name="simple", .desc="add request/response status line or htx info when available" },
242#define H1_VERB_ADVANCED 4
243 { .name="advanced", .desc="add header fields or frame decoding when available" },
244#define H1_VERB_COMPLETE 5
245 { .name="complete", .desc="add full data dump when available" },
246 { /* end */ }
247};
248
Willy Tarreau6eb3d372021-04-10 19:29:26 +0200249static struct trace_source trace_h1 __read_mostly = {
Christopher Faulet6b81df72019-10-01 22:08:43 +0200250 .name = IST("h1"),
251 .desc = "HTTP/1 multiplexer",
252 .arg_def = TRC_ARG1_CONN, // TRACE()'s first argument is always a connection
253 .default_cb = h1_trace,
254 .known_events = h1_trace_events,
255 .lockon_args = h1_trace_lockon_args,
256 .decoding = h1_trace_decoding,
257 .report_events = ~0, // report everything by default
258};
259
260#define TRACE_SOURCE &trace_h1
261INITCALL1(STG_REGISTER, trace_register_source, TRACE_SOURCE);
262
Christopher Faulet51dbc942018-09-13 09:05:15 +0200263/* the h1c and h1s pools */
Willy Tarreau8ceae722018-11-26 11:58:30 +0100264DECLARE_STATIC_POOL(pool_head_h1c, "h1c", sizeof(struct h1c));
265DECLARE_STATIC_POOL(pool_head_h1s, "h1s", sizeof(struct h1s));
Christopher Faulet51dbc942018-09-13 09:05:15 +0200266
Christopher Faulet51dbc942018-09-13 09:05:15 +0200267static int h1_recv(struct h1c *h1c);
268static int h1_send(struct h1c *h1c);
269static int h1_process(struct h1c *h1c);
Willy Tarreau691d5032021-01-20 14:55:01 +0100270/* h1_io_cb is exported to see it resolved in "show fd" */
Willy Tarreau144f84a2021-03-02 16:09:26 +0100271struct task *h1_io_cb(struct task *t, void *ctx, unsigned int state);
272struct task *h1_timeout_task(struct task *t, void *context, unsigned int state);
Christopher Fauletdb451fb2021-10-27 15:36:38 +0200273static void h1_shutw_conn(struct connection *conn);
Christopher Faulet660f6f32019-10-04 10:22:47 +0200274static void h1_wake_stream_for_recv(struct h1s *h1s);
275static void h1_wake_stream_for_send(struct h1s *h1s);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200276
Christopher Faulet6b81df72019-10-01 22:08:43 +0200277/* the H1 traces always expect that arg1, if non-null, is of type connection
278 * (from which we can derive h1c), that arg2, if non-null, is of type h1s, and
279 * that arg3, if non-null, is a htx for rx/tx headers.
280 */
281static void h1_trace(enum trace_level level, uint64_t mask, const struct trace_source *src,
282 const struct ist where, const struct ist func,
283 const void *a1, const void *a2, const void *a3, const void *a4)
284{
285 const struct connection *conn = a1;
286 const struct h1c *h1c = conn ? conn->ctx : NULL;
287 const struct h1s *h1s = a2;
288 const struct htx *htx = a3;
289 const size_t *val = a4;
290
291 if (!h1c)
292 h1c = (h1s ? h1s->h1c : NULL);
293
294 if (!h1c || src->verbosity < H1_VERB_CLEAN)
295 return;
296
297 /* Display frontend/backend info by default */
Christopher Faulet0a799aa2020-09-24 09:52:52 +0200298 chunk_appendf(&trace_buf, " : [%c]", ((h1c->flags & H1C_F_IS_BACK) ? 'B' : 'F'));
Christopher Faulet6b81df72019-10-01 22:08:43 +0200299
300 /* Display request and response states if h1s is defined */
301 if (h1s)
302 chunk_appendf(&trace_buf, " [%s, %s]",
303 h1m_state_str(h1s->req.state), h1m_state_str(h1s->res.state));
304
305 if (src->verbosity == H1_VERB_CLEAN)
306 return;
307
308 /* Display the value to the 4th argument (level > STATE) */
309 if (src->level > TRACE_LEVEL_STATE && val)
Willy Tarreaue18f53e2019-11-27 15:41:31 +0100310 chunk_appendf(&trace_buf, " - VAL=%lu", (long)*val);
Christopher Faulet6b81df72019-10-01 22:08:43 +0200311
312 /* Display status-line if possible (verbosity > MINIMAL) */
313 if (src->verbosity > H1_VERB_MINIMAL && htx && htx_nbblks(htx)) {
314 const struct htx_blk *blk = htx_get_head_blk(htx);
315 const struct htx_sl *sl = htx_get_blk_ptr(htx, blk);
316 enum htx_blk_type type = htx_get_blk_type(blk);
317
318 if (type == HTX_BLK_REQ_SL || type == HTX_BLK_RES_SL)
319 chunk_appendf(&trace_buf, " - \"%.*s %.*s %.*s\"",
320 HTX_SL_P1_LEN(sl), HTX_SL_P1_PTR(sl),
321 HTX_SL_P2_LEN(sl), HTX_SL_P2_PTR(sl),
322 HTX_SL_P3_LEN(sl), HTX_SL_P3_PTR(sl));
323 }
324
325 /* Display h1c info and, if defined, h1s info (pointer + flags) */
326 chunk_appendf(&trace_buf, " - h1c=%p(0x%08x)", h1c, h1c->flags);
Christopher Fauletea62e182021-11-10 10:30:15 +0100327 if (h1c->conn)
328 chunk_appendf(&trace_buf, " conn=%p(0x%08x)", h1c->conn, h1c->conn->flags);
329 if (h1s) {
Christopher Faulet6b81df72019-10-01 22:08:43 +0200330 chunk_appendf(&trace_buf, " h1s=%p(0x%08x)", h1s, h1s->flags);
Christopher Fauletea62e182021-11-10 10:30:15 +0100331 if (h1s->cs)
332 chunk_appendf(&trace_buf, " cs=%p(0x%08x)", h1s->cs, h1s->cs->flags);
333 }
Christopher Faulet6b81df72019-10-01 22:08:43 +0200334
335 if (src->verbosity == H1_VERB_MINIMAL)
336 return;
337
338 /* Display input and output buffer info (level > USER & verbosity > SIMPLE) */
339 if (src->level > TRACE_LEVEL_USER) {
340 if (src->verbosity == H1_VERB_COMPLETE ||
341 (src->verbosity == H1_VERB_ADVANCED && (mask & (H1_EV_H1C_RECV|H1_EV_STRM_RECV))))
342 chunk_appendf(&trace_buf, " ibuf=%u@%p+%u/%u",
343 (unsigned int)b_data(&h1c->ibuf), b_orig(&h1c->ibuf),
344 (unsigned int)b_head_ofs(&h1c->ibuf), (unsigned int)b_size(&h1c->ibuf));
345 if (src->verbosity == H1_VERB_COMPLETE ||
346 (src->verbosity == H1_VERB_ADVANCED && (mask & (H1_EV_H1C_SEND|H1_EV_STRM_SEND))))
347 chunk_appendf(&trace_buf, " obuf=%u@%p+%u/%u",
348 (unsigned int)b_data(&h1c->obuf), b_orig(&h1c->obuf),
349 (unsigned int)b_head_ofs(&h1c->obuf), (unsigned int)b_size(&h1c->obuf));
350 }
351
352 /* Display htx info if defined (level > USER) */
353 if (src->level > TRACE_LEVEL_USER && htx) {
354 int full = 0;
355
356 /* Full htx info (level > STATE && verbosity > SIMPLE) */
357 if (src->level > TRACE_LEVEL_STATE) {
358 if (src->verbosity == H1_VERB_COMPLETE)
359 full = 1;
360 else if (src->verbosity == H1_VERB_ADVANCED && (mask & (H1_EV_RX_HDRS|H1_EV_TX_HDRS)))
361 full = 1;
362 }
363
364 chunk_memcat(&trace_buf, "\n\t", 2);
365 htx_dump(&trace_buf, htx, full);
366 }
367}
368
369
Christopher Faulet51dbc942018-09-13 09:05:15 +0200370/*****************************************************/
371/* functions below are for dynamic buffer management */
372/*****************************************************/
373/*
Christopher Faulet2545a0b2019-12-05 12:30:55 +0100374 * Indicates whether or not we may receive data. The rules are the following :
375 * - if an error or a shutdown for reads was detected on the connection we
Christopher Faulet119ac872020-09-30 17:33:22 +0200376 * must not attempt to receive
377 * - if we are waiting for the connection establishment, we must not attempt
378 * to receive
379 * - if an error was detected on the stream we must not attempt to receive
380 * - if reads are explicitly disabled, we must not attempt to receive
Christopher Faulet2545a0b2019-12-05 12:30:55 +0100381 * - if the input buffer failed to be allocated or is full , we must not try
382 * to receive
Christopher Faulet119ac872020-09-30 17:33:22 +0200383 * - if the mux is not blocked on an input condition, we may attempt to receive
Christopher Faulet51dbc942018-09-13 09:05:15 +0200384 * - otherwise must may not attempt to receive
385 */
386static inline int h1_recv_allowed(const struct h1c *h1c)
387{
Christopher Faulet3ced1d12020-11-27 16:44:01 +0100388 if (h1c->flags & H1C_F_ST_ERROR) {
Christopher Faulet2545a0b2019-12-05 12:30:55 +0100389 TRACE_DEVEL("recv not allowed because of error on h1c", H1_EV_H1C_RECV|H1_EV_H1C_BLK, h1c->conn);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200390 return 0;
Christopher Faulet6b81df72019-10-01 22:08:43 +0200391 }
Christopher Faulet51dbc942018-09-13 09:05:15 +0200392
Willy Tarreau2febb842020-07-31 09:15:43 +0200393 if (h1c->conn->flags & (CO_FL_ERROR|CO_FL_SOCK_RD_SH|CO_FL_WAIT_L4_CONN|CO_FL_WAIT_L6_CONN)) {
394 TRACE_DEVEL("recv not allowed because of (error|read0|waitl4|waitl6) on connection", H1_EV_H1C_RECV|H1_EV_H1C_BLK, h1c->conn);
Christopher Fauletcf56b992018-12-11 16:12:31 +0100395 return 0;
Christopher Faulet6b81df72019-10-01 22:08:43 +0200396 }
Christopher Fauletcf56b992018-12-11 16:12:31 +0100397
Christopher Faulet119ac872020-09-30 17:33:22 +0200398 if (h1c->h1s && (h1c->h1s->flags & H1S_F_ERROR)) {
399 TRACE_DEVEL("recv not allowed because of error on h1s", H1_EV_H1C_RECV|H1_EV_H1C_BLK, h1c->conn);
400 return 0;
401 }
402
Christopher Fauletd17ad822020-09-24 15:14:29 +0200403 if (!(h1c->flags & (H1C_F_IN_ALLOC|H1C_F_IN_FULL|H1C_F_IN_SALLOC)))
Christopher Faulet51dbc942018-09-13 09:05:15 +0200404 return 1;
405
Christopher Faulet6b81df72019-10-01 22:08:43 +0200406 TRACE_DEVEL("recv not allowed because input is blocked", H1_EV_H1C_RECV|H1_EV_H1C_BLK, h1c->conn);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200407 return 0;
408}
409
410/*
411 * Tries to grab a buffer and to re-enables processing on mux <target>. The h1
412 * flags are used to figure what buffer was requested. It returns 1 if the
413 * allocation succeeds, in which case the connection is woken up, or 0 if it's
414 * impossible to wake up and we prefer to be woken up later.
415 */
416static int h1_buf_available(void *target)
417{
418 struct h1c *h1c = target;
419
Willy Tarreaud68d4f12021-03-22 14:44:31 +0100420 if ((h1c->flags & H1C_F_IN_ALLOC) && b_alloc(&h1c->ibuf)) {
Christopher Faulet6b81df72019-10-01 22:08:43 +0200421 TRACE_STATE("unblocking h1c, ibuf allocated", H1_EV_H1C_RECV|H1_EV_H1C_BLK|H1_EV_H1C_WAKE, h1c->conn);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200422 h1c->flags &= ~H1C_F_IN_ALLOC;
423 if (h1_recv_allowed(h1c))
Willy Tarreau3c39a7d2019-06-14 14:42:29 +0200424 tasklet_wakeup(h1c->wait_event.tasklet);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200425 return 1;
426 }
427
Willy Tarreaud68d4f12021-03-22 14:44:31 +0100428 if ((h1c->flags & H1C_F_OUT_ALLOC) && b_alloc(&h1c->obuf)) {
Christopher Faulet6b81df72019-10-01 22:08:43 +0200429 TRACE_STATE("unblocking h1s, obuf allocated", H1_EV_TX_DATA|H1_EV_H1S_BLK|H1_EV_STRM_WAKE, h1c->conn, h1c->h1s);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200430 h1c->flags &= ~H1C_F_OUT_ALLOC;
Christopher Faulet660f6f32019-10-04 10:22:47 +0200431 if (h1c->h1s)
432 h1_wake_stream_for_send(h1c->h1s);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200433 return 1;
434 }
435
Willy Tarreaud68d4f12021-03-22 14:44:31 +0100436 if ((h1c->flags & H1C_F_IN_SALLOC) && h1c->h1s && b_alloc(&h1c->h1s->rxbuf)) {
Christopher Fauletd17ad822020-09-24 15:14:29 +0200437 TRACE_STATE("unblocking h1c, stream rxbuf allocated", H1_EV_H1C_RECV|H1_EV_H1C_BLK|H1_EV_H1C_WAKE, h1c->conn);
438 h1c->flags &= ~H1C_F_IN_SALLOC;
439 tasklet_wakeup(h1c->wait_event.tasklet);
440 return 1;
441 }
442
Christopher Faulet51dbc942018-09-13 09:05:15 +0200443 return 0;
444}
445
446/*
447 * Allocate a buffer. If if fails, it adds the mux in buffer wait queue.
448 */
449static inline struct buffer *h1_get_buf(struct h1c *h1c, struct buffer *bptr)
450{
451 struct buffer *buf = NULL;
452
Willy Tarreau2b718102021-04-21 07:32:39 +0200453 if (likely(!LIST_INLIST(&h1c->buf_wait.list)) &&
Willy Tarreaud68d4f12021-03-22 14:44:31 +0100454 unlikely((buf = b_alloc(bptr)) == NULL)) {
Christopher Faulet51dbc942018-09-13 09:05:15 +0200455 h1c->buf_wait.target = h1c;
456 h1c->buf_wait.wakeup_cb = h1_buf_available;
Willy Tarreau2b718102021-04-21 07:32:39 +0200457 LIST_APPEND(&ti->buffer_wq, &h1c->buf_wait.list);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200458 }
459 return buf;
460}
461
462/*
463 * Release a buffer, if any, and try to wake up entities waiting in the buffer
464 * wait queue.
465 */
466static inline void h1_release_buf(struct h1c *h1c, struct buffer *bptr)
467{
468 if (bptr->size) {
469 b_free(bptr);
Willy Tarreau4d77bbf2021-02-20 12:02:46 +0100470 offer_buffers(h1c->buf_wait.target, 1);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200471 }
472}
473
Christopher Fauletaaa67bc2019-12-05 10:23:37 +0100474/* returns the number of streams in use on a connection to figure if it's idle
Christopher Faulet3ced1d12020-11-27 16:44:01 +0100475 * or not. We rely on H1C_F_ST_IDLE to know if the connection is in-use or
Christopher Fauletaaa67bc2019-12-05 10:23:37 +0100476 * not. This flag is only set when no H1S is attached and when the previous
477 * stream, if any, was fully terminated without any error and in K/A mode.
Willy Tarreau00f18a32019-01-26 12:19:01 +0100478 */
479static int h1_used_streams(struct connection *conn)
Christopher Faulet51dbc942018-09-13 09:05:15 +0200480{
Willy Tarreau3d2ee552018-12-19 14:12:10 +0100481 struct h1c *h1c = conn->ctx;
Christopher Faulet51dbc942018-09-13 09:05:15 +0200482
Christopher Faulet3ced1d12020-11-27 16:44:01 +0100483 return ((h1c->flags & H1C_F_ST_IDLE) ? 0 : 1);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200484}
485
Willy Tarreau00f18a32019-01-26 12:19:01 +0100486/* returns the number of streams still available on a connection */
487static int h1_avail_streams(struct connection *conn)
Olivier Houchard8defe4b2018-12-02 01:31:17 +0100488{
Willy Tarreau00f18a32019-01-26 12:19:01 +0100489 return 1 - h1_used_streams(conn);
Olivier Houchard8defe4b2018-12-02 01:31:17 +0100490}
Christopher Faulet51dbc942018-09-13 09:05:15 +0200491
Christopher Faulet7a145d62020-08-05 11:31:16 +0200492/* Refresh the h1c task timeout if necessary */
493static void h1_refresh_timeout(struct h1c *h1c)
494{
495 if (h1c->task) {
Christopher Faulet3ced1d12020-11-27 16:44:01 +0100496 if (!(h1c->flags & H1C_F_ST_ALIVE) || (h1c->flags & H1C_F_ST_SHUTDOWN)) {
Christopher Faulet3c82d8b2020-10-05 17:11:16 +0200497 /* half-closed or dead connections : switch to clientfin/serverfin
498 * timeouts so that we don't hang too long on clients that have
499 * gone away (especially in tunnel mode).
Willy Tarreau4313d5a2020-09-08 15:40:57 +0200500 */
501 h1c->task->expire = tick_add(now_ms, h1c->shut_timeout);
Christopher Fauletadcd7892020-10-05 17:13:05 +0200502 TRACE_DEVEL("refreshing connection's timeout (dead or half-closed)", H1_EV_H1C_SEND|H1_EV_H1C_RECV, h1c->conn);
503 }
504 else if (b_data(&h1c->obuf)) {
505 /* connection with pending outgoing data, need a timeout (server or client). */
Christopher Faulet3c82d8b2020-10-05 17:11:16 +0200506 h1c->task->expire = tick_add(now_ms, h1c->timeout);
Christopher Fauletadcd7892020-10-05 17:13:05 +0200507 TRACE_DEVEL("refreshing connection's timeout (pending outgoing data)", H1_EV_H1C_SEND|H1_EV_H1C_RECV, h1c->conn);
508 }
Christopher Faulet39c7b6b2021-01-21 17:44:35 +0100509 else if (!(h1c->flags & (H1C_F_IS_BACK|H1C_F_ST_READY))) {
510 /* front connections waiting for a fully usable stream need a timeout. */
Christopher Fauletc4bfa592020-10-06 17:45:34 +0200511 h1c->task->expire = tick_add(now_ms, h1c->timeout);
Christopher Faulet39c7b6b2021-01-21 17:44:35 +0100512 TRACE_DEVEL("refreshing connection's timeout (alive front h1c but not ready)", H1_EV_H1C_SEND|H1_EV_H1C_RECV, h1c->conn);
Christopher Faulet7a145d62020-08-05 11:31:16 +0200513 }
Christopher Fauletadcd7892020-10-05 17:13:05 +0200514 else {
515 /* alive back connections of front connections with a conn-stream attached */
516 h1c->task->expire = TICK_ETERNITY;
517 TRACE_DEVEL("no connection timeout (alive back h1c or front h1c with a CS)", H1_EV_H1C_SEND|H1_EV_H1C_RECV, h1c->conn);
518 }
519
Christopher Fauletdbe57792020-10-05 17:50:58 +0200520 /* Finally set the idle expiration date if shorter */
521 h1c->task->expire = tick_first(h1c->task->expire, h1c->idle_exp);
Christopher Fauletadcd7892020-10-05 17:13:05 +0200522 TRACE_DEVEL("new expiration date", H1_EV_H1C_SEND|H1_EV_H1C_RECV, h1c->conn, 0, 0, (size_t[]){h1c->task->expire});
523 task_queue(h1c->task);
Christopher Faulet7a145d62020-08-05 11:31:16 +0200524 }
525}
Christopher Fauletdbe57792020-10-05 17:50:58 +0200526
Christopher Fauletc4bfa592020-10-06 17:45:34 +0200527static void h1_set_idle_expiration(struct h1c *h1c)
Christopher Fauletdbe57792020-10-05 17:50:58 +0200528{
529 if (h1c->flags & H1C_F_IS_BACK || !h1c->task) {
530 TRACE_DEVEL("no idle expiration (backend connection || no task)", H1_EV_H1C_RECV, h1c->conn);
531 h1c->idle_exp = TICK_ETERNITY;
532 return;
533 }
534
Christopher Faulet3ced1d12020-11-27 16:44:01 +0100535 if (h1c->flags & H1C_F_ST_IDLE) {
Christopher Fauletdbe57792020-10-05 17:50:58 +0200536 if (!tick_isset(h1c->idle_exp)) {
537 if ((h1c->flags & H1C_F_WAIT_NEXT_REQ) && /* Not the first request */
538 !b_data(&h1c->ibuf) && /* No input data */
539 tick_isset(h1c->px->timeout.httpka)) { /* K-A timeout set */
540 h1c->idle_exp = tick_add_ifset(now_ms, h1c->px->timeout.httpka);
541 TRACE_DEVEL("set idle expiration (keep-alive timeout)", H1_EV_H1C_RECV, h1c->conn);
542 }
543 else {
544 h1c->idle_exp = tick_add_ifset(now_ms, h1c->px->timeout.httpreq);
545 TRACE_DEVEL("set idle expiration (http-request timeout)", H1_EV_H1C_RECV, h1c->conn);
546 }
547 }
548 }
Christopher Faulet39c7b6b2021-01-21 17:44:35 +0100549 else if ((h1c->flags & H1C_F_ST_ALIVE) && !(h1c->flags & H1C_F_ST_READY)) {
Christopher Fauletdbe57792020-10-05 17:50:58 +0200550 if (!tick_isset(h1c->idle_exp)) {
551 h1c->idle_exp = tick_add_ifset(now_ms, h1c->px->timeout.httpreq);
552 TRACE_DEVEL("set idle expiration (http-request timeout)", H1_EV_H1C_RECV, h1c->conn);
553 }
554 }
555 else { // CS_ATTACHED or SHUTDOWN
556 h1c->idle_exp = TICK_ETERNITY;
557 TRACE_DEVEL("unset idle expiration (attached || shutdown)", H1_EV_H1C_RECV, h1c->conn);
558 }
559}
Christopher Faulet51dbc942018-09-13 09:05:15 +0200560/*****************************************************************/
561/* functions below are dedicated to the mux setup and management */
562/*****************************************************************/
Willy Tarreaufbdf90a2019-06-03 13:42:54 +0200563
564/* returns non-zero if there are input data pending for stream h1s. */
565static inline size_t h1s_data_pending(const struct h1s *h1s)
566{
567 const struct h1m *h1m;
568
Christopher Faulet0a799aa2020-09-24 09:52:52 +0200569 h1m = ((h1s->h1c->flags & H1C_F_IS_BACK) ? &h1s->res : &h1s->req);
Christopher Fauletd1ac2b92020-12-02 19:12:22 +0100570 return ((h1m->state == H1_MSG_DONE) ? 0 : b_data(&h1s->h1c->ibuf));
Willy Tarreaufbdf90a2019-06-03 13:42:54 +0200571}
572
Christopher Faulet16df1782020-12-04 16:47:41 +0100573/* Creates a new conn-stream and the associate stream. <input> is used as input
574 * buffer for the stream. On success, it is transferred to the stream and the
575 * mux is no longer responsible of it. On error, <input> is unchanged, thus the
576 * mux must still take care of it. However, there is nothing special to do
577 * because, on success, <input> is updated to points on BUF_NULL. Thus, calling
578 * b_free() on it is always safe. This function returns the conn-stream on
579 * success or NULL on error. */
Christopher Faulet26256f82020-09-14 11:40:13 +0200580static struct conn_stream *h1s_new_cs(struct h1s *h1s, struct buffer *input)
Christopher Faulet47365272018-10-31 17:40:50 +0100581{
582 struct conn_stream *cs;
583
Christopher Faulet6b81df72019-10-01 22:08:43 +0200584 TRACE_ENTER(H1_EV_STRM_NEW, h1s->h1c->conn, h1s);
Christopher Faulet236c93b2020-07-02 09:19:54 +0200585 cs = cs_new(h1s->h1c->conn, h1s->h1c->conn->target);
Christopher Faulet6b81df72019-10-01 22:08:43 +0200586 if (!cs) {
Christopher Faulet26a26432021-01-27 11:27:50 +0100587 TRACE_ERROR("CS allocation failure", H1_EV_STRM_NEW|H1_EV_STRM_END|H1_EV_STRM_ERR, h1s->h1c->conn, h1s);
Christopher Faulet47365272018-10-31 17:40:50 +0100588 goto err;
Christopher Faulet6b81df72019-10-01 22:08:43 +0200589 }
Christopher Faulet47365272018-10-31 17:40:50 +0100590 h1s->cs = cs;
591 cs->ctx = h1s;
592
593 if (h1s->flags & H1S_F_NOT_FIRST)
594 cs->flags |= CS_FL_NOT_FIRST;
595
Amaury Denoyelleee7fcd52021-10-18 14:45:49 +0200596 if (h1s->req.flags & H1_MF_UPG_WEBSOCKET)
597 cs->flags |= CS_FL_WEBSOCKET;
598
Christopher Faulet26256f82020-09-14 11:40:13 +0200599 if (stream_create_from_cs(cs, input) < 0) {
Christopher Faulet6b81df72019-10-01 22:08:43 +0200600 TRACE_DEVEL("leaving on stream creation failure", H1_EV_STRM_NEW|H1_EV_STRM_END|H1_EV_STRM_ERR, h1s->h1c->conn, h1s);
Christopher Faulet47365272018-10-31 17:40:50 +0100601 goto err;
Christopher Faulet6b81df72019-10-01 22:08:43 +0200602 }
603
Christopher Faulet39c7b6b2021-01-21 17:44:35 +0100604 h1s->h1c->flags = (h1s->h1c->flags & ~H1C_F_ST_EMBRYONIC) | H1C_F_ST_ATTACHED | H1C_F_ST_READY;
Christopher Faulet6b81df72019-10-01 22:08:43 +0200605 TRACE_LEAVE(H1_EV_STRM_NEW, h1s->h1c->conn, h1s);
Christopher Faulet47365272018-10-31 17:40:50 +0100606 return cs;
607
608 err:
609 cs_free(cs);
610 h1s->cs = NULL;
Christopher Faulet26a26432021-01-27 11:27:50 +0100611 TRACE_DEVEL("leaving on error", H1_EV_STRM_NEW|H1_EV_STRM_ERR, h1s->h1c->conn, h1s);
Christopher Faulet47365272018-10-31 17:40:50 +0100612 return NULL;
613}
614
Christopher Faulet0f9395d2021-01-21 17:50:19 +0100615static struct conn_stream *h1s_upgrade_cs(struct h1s *h1s, struct buffer *input)
616{
617 TRACE_ENTER(H1_EV_STRM_NEW, h1s->h1c->conn, h1s);
618
619 if (stream_upgrade_from_cs(h1s->cs, input) < 0) {
Christopher Faulet26a26432021-01-27 11:27:50 +0100620 TRACE_ERROR("stream upgrade failure", H1_EV_STRM_NEW|H1_EV_STRM_END|H1_EV_STRM_ERR, h1s->h1c->conn, h1s);
Christopher Faulet0f9395d2021-01-21 17:50:19 +0100621 goto err;
622 }
623
Christopher Faulet0f9395d2021-01-21 17:50:19 +0100624 h1s->h1c->flags |= H1C_F_ST_READY;
625 TRACE_LEAVE(H1_EV_STRM_NEW, h1s->h1c->conn, h1s);
626 return h1s->cs;
627
628 err:
Christopher Faulet26a26432021-01-27 11:27:50 +0100629 TRACE_DEVEL("leaving on error", H1_EV_STRM_NEW|H1_EV_STRM_ERR, h1s->h1c->conn, h1s);
Christopher Faulet0f9395d2021-01-21 17:50:19 +0100630 return NULL;
631}
632
Christopher Faulet2f0ec662020-09-24 10:30:15 +0200633static struct h1s *h1s_new(struct h1c *h1c)
Christopher Faulet51dbc942018-09-13 09:05:15 +0200634{
635 struct h1s *h1s;
636
Christopher Faulet6b81df72019-10-01 22:08:43 +0200637 TRACE_ENTER(H1_EV_H1S_NEW, h1c->conn);
638
Christopher Faulet51dbc942018-09-13 09:05:15 +0200639 h1s = pool_alloc(pool_head_h1s);
Christopher Faulet26a26432021-01-27 11:27:50 +0100640 if (!h1s) {
641 TRACE_ERROR("H1S allocation failure", H1_EV_H1S_NEW|H1_EV_H1S_END|H1_EV_H1S_ERR, h1c->conn);
Christopher Faulet47365272018-10-31 17:40:50 +0100642 goto fail;
Christopher Faulet26a26432021-01-27 11:27:50 +0100643 }
Christopher Faulet51dbc942018-09-13 09:05:15 +0200644 h1s->h1c = h1c;
645 h1c->h1s = h1s;
Christopher Faulet2f0ec662020-09-24 10:30:15 +0200646 h1s->sess = NULL;
647 h1s->cs = NULL;
Christopher Fauletb992af02019-03-28 15:42:24 +0100648 h1s->flags = H1S_F_WANT_KAL;
Willy Tarreau1b0d4d12020-01-16 11:03:19 +0100649 h1s->subs = NULL;
Christopher Fauletd17ad822020-09-24 15:14:29 +0200650 h1s->rxbuf = BUF_NULL;
Amaury Denoyellec1938232020-12-11 17:53:03 +0100651 memset(h1s->ws_key, 0, sizeof(h1s->ws_key));
Christopher Faulet129817b2018-09-20 16:14:40 +0200652
653 h1m_init_req(&h1s->req);
Christopher Fauletb992af02019-03-28 15:42:24 +0100654 h1s->req.flags |= (H1_MF_NO_PHDR|H1_MF_CLEAN_CONN_HDR);
Christopher Faulet9768c262018-10-22 09:34:31 +0200655
Christopher Faulet129817b2018-09-20 16:14:40 +0200656 h1m_init_res(&h1s->res);
Christopher Fauletb992af02019-03-28 15:42:24 +0100657 h1s->res.flags |= (H1_MF_NO_PHDR|H1_MF_CLEAN_CONN_HDR);
Christopher Faulet129817b2018-09-20 16:14:40 +0200658
659 h1s->status = 0;
660 h1s->meth = HTTP_METH_OTHER;
661
Christopher Faulet47365272018-10-31 17:40:50 +0100662 if (h1c->flags & H1C_F_WAIT_NEXT_REQ)
663 h1s->flags |= H1S_F_NOT_FIRST;
Christopher Faulet3ced1d12020-11-27 16:44:01 +0100664 h1c->flags = (h1c->flags & ~(H1C_F_ST_IDLE|H1C_F_WAIT_NEXT_REQ)) | H1C_F_ST_EMBRYONIC;
Christopher Faulet47365272018-10-31 17:40:50 +0100665
Christopher Faulet2f0ec662020-09-24 10:30:15 +0200666 TRACE_LEAVE(H1_EV_H1S_NEW, h1c->conn, h1s);
667 return h1s;
Christopher Faulete9b70722019-04-08 10:46:02 +0200668
Christopher Faulet2f0ec662020-09-24 10:30:15 +0200669 fail:
Christopher Faulet26a26432021-01-27 11:27:50 +0100670 TRACE_DEVEL("leaving on error", H1_EV_STRM_NEW|H1_EV_STRM_ERR, h1c->conn);
Christopher Faulet2f0ec662020-09-24 10:30:15 +0200671 return NULL;
672}
Christopher Fauletfeb11742018-11-29 15:12:34 +0100673
Christopher Faulet2f0ec662020-09-24 10:30:15 +0200674static struct h1s *h1c_frt_stream_new(struct h1c *h1c)
675{
676 struct session *sess = h1c->conn->owner;
677 struct h1s *h1s;
678
679 TRACE_ENTER(H1_EV_H1S_NEW, h1c->conn);
680
681 h1s = h1s_new(h1c);
682 if (!h1s)
683 goto fail;
684
685 h1s->sess = sess;
686
687 if (h1c->px->options2 & PR_O2_REQBUG_OK)
688 h1s->req.err_pos = -1;
689
Christopher Fauletc4bfa592020-10-06 17:45:34 +0200690 h1c->idle_exp = TICK_ETERNITY;
691 h1_set_idle_expiration(h1c);
Christopher Faulet6b81df72019-10-01 22:08:43 +0200692 TRACE_LEAVE(H1_EV_H1S_NEW, h1c->conn, h1s);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200693 return h1s;
Christopher Faulet47365272018-10-31 17:40:50 +0100694
Christopher Faulet2f0ec662020-09-24 10:30:15 +0200695 fail:
Christopher Faulet26a26432021-01-27 11:27:50 +0100696 TRACE_DEVEL("leaving on error", H1_EV_STRM_NEW|H1_EV_STRM_ERR, h1c->conn);
Christopher Faulet2f0ec662020-09-24 10:30:15 +0200697 return NULL;
698}
699
700static struct h1s *h1c_bck_stream_new(struct h1c *h1c, struct conn_stream *cs, struct session *sess)
701{
702 struct h1s *h1s;
703
704 TRACE_ENTER(H1_EV_H1S_NEW, h1c->conn);
705
706 h1s = h1s_new(h1c);
707 if (!h1s)
708 goto fail;
709
Christopher Faulet10a86702021-04-07 14:18:11 +0200710 h1s->flags |= H1S_F_RX_BLK;
Christopher Faulet2f0ec662020-09-24 10:30:15 +0200711 h1s->cs = cs;
712 h1s->sess = sess;
713 cs->ctx = h1s;
714
Christopher Faulet39c7b6b2021-01-21 17:44:35 +0100715 h1c->flags = (h1c->flags & ~H1C_F_ST_EMBRYONIC) | H1C_F_ST_ATTACHED | H1C_F_ST_READY;
Christopher Faulet2f0ec662020-09-24 10:30:15 +0200716
717 if (h1c->px->options2 & PR_O2_RSPBUG_OK)
718 h1s->res.err_pos = -1;
719
720 TRACE_LEAVE(H1_EV_H1S_NEW, h1c->conn, h1s);
721 return h1s;
722
723 fail:
Christopher Faulet26a26432021-01-27 11:27:50 +0100724 TRACE_DEVEL("leaving on error", H1_EV_STRM_NEW|H1_EV_STRM_ERR, h1c->conn);
Christopher Faulet47365272018-10-31 17:40:50 +0100725 return NULL;
Christopher Faulet51dbc942018-09-13 09:05:15 +0200726}
727
728static void h1s_destroy(struct h1s *h1s)
729{
Christopher Fauletf2824e62018-10-01 12:12:37 +0200730 if (h1s) {
731 struct h1c *h1c = h1s->h1c;
Christopher Faulet51dbc942018-09-13 09:05:15 +0200732
Christopher Faulet6b81df72019-10-01 22:08:43 +0200733 TRACE_POINT(H1_EV_H1S_END, h1c->conn, h1s);
Christopher Fauletf2824e62018-10-01 12:12:37 +0200734 h1c->h1s = NULL;
Christopher Faulet51dbc942018-09-13 09:05:15 +0200735
Willy Tarreau1b0d4d12020-01-16 11:03:19 +0100736 if (h1s->subs)
737 h1s->subs->events = 0;
Christopher Fauletf2824e62018-10-01 12:12:37 +0200738
Christopher Fauletd17ad822020-09-24 15:14:29 +0200739 h1_release_buf(h1c, &h1s->rxbuf);
740
Christopher Faulet10a86702021-04-07 14:18:11 +0200741 h1c->flags &= ~(H1C_F_WANT_SPLICE|
Christopher Fauletb385b502021-01-13 18:47:57 +0100742 H1C_F_ST_EMBRYONIC|H1C_F_ST_ATTACHED|H1C_F_ST_READY|
Christopher Faulet295b8d12020-09-30 17:14:55 +0200743 H1C_F_OUT_FULL|H1C_F_OUT_ALLOC|H1C_F_IN_SALLOC|
744 H1C_F_CO_MSG_MORE|H1C_F_CO_STREAMER);
Christopher Faulet60ef12c2020-09-24 10:05:44 +0200745 if (h1s->flags & H1S_F_ERROR) {
Christopher Faulet3ced1d12020-11-27 16:44:01 +0100746 h1c->flags |= H1C_F_ST_ERROR;
Christopher Faulet26a26432021-01-27 11:27:50 +0100747 TRACE_ERROR("h1s on error, set error on h1c", H1_EV_H1S_END|H1_EV_H1C_ERR, h1c->conn, h1s);
Christopher Faulet6b81df72019-10-01 22:08:43 +0200748 }
Christopher Fauletaaa67bc2019-12-05 10:23:37 +0100749
Christopher Fauletd1ac2b92020-12-02 19:12:22 +0100750 if (!(h1c->flags & (H1C_F_ST_ERROR|H1C_F_ST_SHUTDOWN)) && /* No error/shutdown on h1c */
Christopher Fauletaaa67bc2019-12-05 10:23:37 +0100751 !(h1c->conn->flags & (CO_FL_ERROR|CO_FL_SOCK_RD_SH|CO_FL_SOCK_WR_SH)) && /* No error/shutdown on conn */
Christopher Fauletd1ac2b92020-12-02 19:12:22 +0100752 (h1s->flags & H1S_F_WANT_KAL) && /* K/A possible */
Christopher Fauletaaa67bc2019-12-05 10:23:37 +0100753 h1s->req.state == H1_MSG_DONE && h1s->res.state == H1_MSG_DONE) { /* req/res in DONE state */
Christopher Faulet3ced1d12020-11-27 16:44:01 +0100754 h1c->flags |= (H1C_F_ST_IDLE|H1C_F_WAIT_NEXT_REQ);
Christopher Fauletaaa67bc2019-12-05 10:23:37 +0100755 TRACE_STATE("set idle mode on h1c, waiting for the next request", H1_EV_H1C_ERR, h1c->conn, h1s);
756 }
Christopher Faulet3c82d8b2020-10-05 17:11:16 +0200757 else {
Christopher Faulet26a26432021-01-27 11:27:50 +0100758 TRACE_STATE("set shudown on h1c", H1_EV_H1S_END, h1c->conn, h1s);
Christopher Faulet3ced1d12020-11-27 16:44:01 +0100759 h1c->flags |= H1C_F_ST_SHUTDOWN;
Christopher Faulet3c82d8b2020-10-05 17:11:16 +0200760 }
Christopher Fauletf2824e62018-10-01 12:12:37 +0200761 pool_free(pool_head_h1s, h1s);
762 }
Christopher Faulet51dbc942018-09-13 09:05:15 +0200763}
764
765/*
Christopher Faulet51f73eb2019-04-08 11:22:47 +0200766 * Initialize the mux once it's attached. It is expected that conn->ctx points
Ilya Shipitsin47d17182020-06-21 21:42:57 +0500767 * to the existing conn_stream (for outgoing connections or for incoming ones
768 * during a mux upgrade) or NULL (for incoming ones during the connection
Christopher Faulet51f73eb2019-04-08 11:22:47 +0200769 * establishment). <input> is always used as Input buffer and may contain
770 * data. It is the caller responsibility to not reuse it anymore. Returns < 0 on
771 * error.
Christopher Faulet51dbc942018-09-13 09:05:15 +0200772 */
Christopher Faulet51f73eb2019-04-08 11:22:47 +0200773static int h1_init(struct connection *conn, struct proxy *proxy, struct session *sess,
774 struct buffer *input)
Christopher Faulet51dbc942018-09-13 09:05:15 +0200775{
Christopher Faulet51dbc942018-09-13 09:05:15 +0200776 struct h1c *h1c;
Christopher Fauletb8093cf2019-01-03 16:27:28 +0100777 struct task *t = NULL;
Christopher Faulet6b81df72019-10-01 22:08:43 +0200778 void *conn_ctx = conn->ctx;
779
780 TRACE_ENTER(H1_EV_H1C_NEW);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200781
782 h1c = pool_alloc(pool_head_h1c);
Christopher Faulet26a26432021-01-27 11:27:50 +0100783 if (!h1c) {
784 TRACE_ERROR("H1C allocation failure", H1_EV_H1C_NEW|H1_EV_H1C_END|H1_EV_H1C_ERR);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200785 goto fail_h1c;
Christopher Faulet26a26432021-01-27 11:27:50 +0100786 }
Christopher Faulet51dbc942018-09-13 09:05:15 +0200787 h1c->conn = conn;
788 h1c->px = proxy;
789
Christopher Faulet3ced1d12020-11-27 16:44:01 +0100790 h1c->flags = H1C_F_ST_IDLE;
Christopher Fauletc18fc232020-10-06 17:41:36 +0200791 h1c->errcode = 0;
Christopher Faulet51f73eb2019-04-08 11:22:47 +0200792 h1c->ibuf = *input;
Christopher Faulet51dbc942018-09-13 09:05:15 +0200793 h1c->obuf = BUF_NULL;
794 h1c->h1s = NULL;
Christopher Faulet51f73eb2019-04-08 11:22:47 +0200795 h1c->task = NULL;
Christopher Faulet51dbc942018-09-13 09:05:15 +0200796
Willy Tarreau90f366b2021-02-20 11:49:49 +0100797 LIST_INIT(&h1c->buf_wait.list);
Willy Tarreau3c39a7d2019-06-14 14:42:29 +0200798 h1c->wait_event.tasklet = tasklet_new();
799 if (!h1c->wait_event.tasklet)
Christopher Faulet51dbc942018-09-13 09:05:15 +0200800 goto fail;
Willy Tarreau3c39a7d2019-06-14 14:42:29 +0200801 h1c->wait_event.tasklet->process = h1_io_cb;
802 h1c->wait_event.tasklet->context = h1c;
Willy Tarreau4f6516d2018-12-19 13:59:17 +0100803 h1c->wait_event.events = 0;
Christopher Fauletdbe57792020-10-05 17:50:58 +0200804 h1c->idle_exp = TICK_ETERNITY;
Christopher Faulet51dbc942018-09-13 09:05:15 +0200805
Christopher Faulete9b70722019-04-08 10:46:02 +0200806 if (conn_is_back(conn)) {
Christopher Faulet10a86702021-04-07 14:18:11 +0200807 h1c->flags |= H1C_F_IS_BACK;
Christopher Fauletb8093cf2019-01-03 16:27:28 +0100808 h1c->shut_timeout = h1c->timeout = proxy->timeout.server;
809 if (tick_isset(proxy->timeout.serverfin))
810 h1c->shut_timeout = proxy->timeout.serverfin;
811 } else {
812 h1c->shut_timeout = h1c->timeout = proxy->timeout.client;
813 if (tick_isset(proxy->timeout.clientfin))
814 h1c->shut_timeout = proxy->timeout.clientfin;
Amaury Denoyelled3a88c12021-05-03 10:47:51 +0200815
816 LIST_APPEND(&mux_stopping_data[tid].list,
817 &h1c->conn->stopping_list);
Christopher Fauletb8093cf2019-01-03 16:27:28 +0100818 }
819 if (tick_isset(h1c->timeout)) {
820 t = task_new(tid_bit);
Christopher Faulet26a26432021-01-27 11:27:50 +0100821 if (!t) {
822 TRACE_ERROR("H1C task allocation failure", H1_EV_H1C_NEW|H1_EV_H1C_END|H1_EV_H1C_ERR);
Christopher Fauletb8093cf2019-01-03 16:27:28 +0100823 goto fail;
Christopher Faulet26a26432021-01-27 11:27:50 +0100824 }
Christopher Fauletb8093cf2019-01-03 16:27:28 +0100825
826 h1c->task = t;
827 t->process = h1_timeout_task;
828 t->context = h1c;
Christopher Fauletc4bfa592020-10-06 17:45:34 +0200829
Christopher Fauletb8093cf2019-01-03 16:27:28 +0100830 t->expire = tick_add(now_ms, h1c->timeout);
831 }
832
Willy Tarreau3d2ee552018-12-19 14:12:10 +0100833 conn->ctx = h1c;
Christopher Faulet129817b2018-09-20 16:14:40 +0200834
Christopher Fauletc4bfa592020-10-06 17:45:34 +0200835 if (h1c->flags & H1C_F_IS_BACK) {
836 /* Create a new H1S now for backend connection only */
Christopher Faulet2f0ec662020-09-24 10:30:15 +0200837 if (!h1c_bck_stream_new(h1c, conn_ctx, sess))
838 goto fail;
839 }
Christopher Faulet0f9395d2021-01-21 17:50:19 +0100840 else if (conn_ctx) {
841 /* Upgraded frontend connection (from TCP) */
842 struct conn_stream *cs = conn_ctx;
843
844 if (!h1c_frt_stream_new(h1c))
845 goto fail;
846
847 h1c->h1s->cs = cs;
848 cs->ctx = h1c->h1s;
849
850 /* Attach the CS but Not ready yet */
851 h1c->flags = (h1c->flags & ~H1C_F_ST_EMBRYONIC) | H1C_F_ST_ATTACHED;
852 TRACE_DEVEL("Inherit the CS from TCP connection to perform an upgrade",
853 H1_EV_H1C_NEW|H1_EV_STRM_NEW, h1c->conn, h1c->h1s);
854 }
Christopher Fauletb8093cf2019-01-03 16:27:28 +0100855
Christopher Fauletc4bfa592020-10-06 17:45:34 +0200856 if (t) {
857 h1_set_idle_expiration(h1c);
858 t->expire = tick_first(t->expire, h1c->idle_exp);
Christopher Fauletb8093cf2019-01-03 16:27:28 +0100859 task_queue(t);
Christopher Fauletc4bfa592020-10-06 17:45:34 +0200860 }
Christopher Fauletb8093cf2019-01-03 16:27:28 +0100861
Christopher Fauletc4bfa592020-10-06 17:45:34 +0200862 /* prepare to read something */
Christopher Fauletd9ee7882021-01-21 17:45:45 +0100863 if (b_data(&h1c->ibuf))
864 tasklet_wakeup(h1c->wait_event.tasklet);
865 else if (h1_recv_allowed(h1c))
Christopher Faulet089acd52020-09-21 10:57:52 +0200866 h1c->conn->xprt->subscribe(h1c->conn, h1c->conn->xprt_ctx, SUB_RETRY_RECV, &h1c->wait_event);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200867
868 /* mux->wake will be called soon to complete the operation */
Christopher Faulet6b81df72019-10-01 22:08:43 +0200869 TRACE_LEAVE(H1_EV_H1C_NEW, conn, h1c->h1s);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200870 return 0;
871
872 fail:
Willy Tarreauf6562792019-05-07 19:05:35 +0200873 task_destroy(t);
Willy Tarreau3c39a7d2019-06-14 14:42:29 +0200874 if (h1c->wait_event.tasklet)
875 tasklet_free(h1c->wait_event.tasklet);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200876 pool_free(pool_head_h1c, h1c);
877 fail_h1c:
Christopher Faulet6b81df72019-10-01 22:08:43 +0200878 conn->ctx = conn_ctx; // restore saved context
879 TRACE_DEVEL("leaving in error", H1_EV_H1C_NEW|H1_EV_H1C_END|H1_EV_H1C_ERR);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200880 return -1;
881}
882
Christopher Faulet73c12072019-04-08 11:23:22 +0200883/* release function. This one should be called to free all resources allocated
884 * to the mux.
Christopher Faulet51dbc942018-09-13 09:05:15 +0200885 */
Christopher Faulet73c12072019-04-08 11:23:22 +0200886static void h1_release(struct h1c *h1c)
Christopher Faulet51dbc942018-09-13 09:05:15 +0200887{
Christopher Faulet61840e72019-04-15 09:33:32 +0200888 struct connection *conn = NULL;
Christopher Faulet39a96ee2019-04-08 10:52:21 +0200889
Christopher Faulet6b81df72019-10-01 22:08:43 +0200890 TRACE_POINT(H1_EV_H1C_END);
891
Christopher Faulet51dbc942018-09-13 09:05:15 +0200892 if (h1c) {
Christopher Faulet61840e72019-04-15 09:33:32 +0200893 /* The connection must be aattached to this mux to be released */
894 if (h1c->conn && h1c->conn->ctx == h1c)
895 conn = h1c->conn;
896
Christopher Faulet6b81df72019-10-01 22:08:43 +0200897 TRACE_DEVEL("freeing h1c", H1_EV_H1C_END, conn);
898
Christopher Faulet61840e72019-04-15 09:33:32 +0200899 if (conn && h1c->flags & H1C_F_UPG_H2C) {
Christopher Faulet6b81df72019-10-01 22:08:43 +0200900 TRACE_DEVEL("upgrading H1 to H2", H1_EV_H1C_END, conn);
Olivier Houchard2ab3dad2019-07-03 13:08:18 +0200901 /* Make sure we're no longer subscribed to anything */
902 if (h1c->wait_event.events)
903 conn->xprt->unsubscribe(conn, conn->xprt_ctx,
904 h1c->wait_event.events, &h1c->wait_event);
Christopher Fauletc985f6c2019-07-15 11:42:52 +0200905 if (conn_upgrade_mux_fe(conn, NULL, &h1c->ibuf, ist("h2"), PROTO_MODE_HTTP) != -1) {
Christopher Faulet0ef372a2019-04-08 10:57:20 +0200906 /* connection successfully upgraded to H2, this
907 * mux was already released */
908 return;
909 }
Christopher Faulet26a26432021-01-27 11:27:50 +0100910 TRACE_ERROR("h2 upgrade failed", H1_EV_H1C_END|H1_EV_H1C_ERR, conn);
Christopher Faulet0ef372a2019-04-08 10:57:20 +0200911 sess_log(conn->owner); /* Log if the upgrade failed */
912 }
913
Olivier Houchard45c44372019-06-11 14:06:23 +0200914
Willy Tarreau2b718102021-04-21 07:32:39 +0200915 if (LIST_INLIST(&h1c->buf_wait.list))
Willy Tarreau90f366b2021-02-20 11:49:49 +0100916 LIST_DEL_INIT(&h1c->buf_wait.list);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200917
918 h1_release_buf(h1c, &h1c->ibuf);
919 h1_release_buf(h1c, &h1c->obuf);
920
Christopher Fauletb8093cf2019-01-03 16:27:28 +0100921 if (h1c->task) {
922 h1c->task->context = NULL;
923 task_wakeup(h1c->task, TASK_WOKEN_OTHER);
924 h1c->task = NULL;
925 }
926
Willy Tarreau3c39a7d2019-06-14 14:42:29 +0200927 if (h1c->wait_event.tasklet)
928 tasklet_free(h1c->wait_event.tasklet);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200929
Christopher Fauletf2824e62018-10-01 12:12:37 +0200930 h1s_destroy(h1c->h1s);
Christopher Faulet37c42542021-10-27 15:42:13 +0200931 if (conn) {
932 if (h1c->wait_event.events != 0)
933 conn->xprt->unsubscribe(conn, conn->xprt_ctx, h1c->wait_event.events,
934 &h1c->wait_event);
935 h1_shutw_conn(conn);
936 }
Christopher Faulet51dbc942018-09-13 09:05:15 +0200937 pool_free(pool_head_h1c, h1c);
938 }
939
Christopher Faulet39a96ee2019-04-08 10:52:21 +0200940 if (conn) {
Amaury Denoyelled3a88c12021-05-03 10:47:51 +0200941 if (!conn_is_back(conn))
942 LIST_DEL_INIT(&conn->stopping_list);
943
Christopher Faulet39a96ee2019-04-08 10:52:21 +0200944 conn->mux = NULL;
945 conn->ctx = NULL;
Christopher Faulet6b81df72019-10-01 22:08:43 +0200946 TRACE_DEVEL("freeing conn", H1_EV_H1C_END, conn);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200947
Christopher Faulet39a96ee2019-04-08 10:52:21 +0200948 conn_stop_tracking(conn);
949 conn_full_close(conn);
950 if (conn->destroy_cb)
951 conn->destroy_cb(conn);
952 conn_free(conn);
953 }
Christopher Faulet51dbc942018-09-13 09:05:15 +0200954}
955
956/******************************************************/
957/* functions below are for the H1 protocol processing */
958/******************************************************/
Christopher Faulet9768c262018-10-22 09:34:31 +0200959/* Parse the request version and set H1_MF_VER_11 on <h1m> if the version is
960 * greater or equal to 1.1
Christopher Fauletf2824e62018-10-01 12:12:37 +0200961 */
Christopher Faulet570d1612018-11-26 11:13:57 +0100962static void h1_parse_req_vsn(struct h1m *h1m, const struct htx_sl *sl)
Christopher Fauletf2824e62018-10-01 12:12:37 +0200963{
Christopher Faulet570d1612018-11-26 11:13:57 +0100964 const char *p = HTX_SL_REQ_VPTR(sl);
Christopher Faulet9768c262018-10-22 09:34:31 +0200965
Christopher Faulet570d1612018-11-26 11:13:57 +0100966 if ((HTX_SL_REQ_VLEN(sl) == 8) &&
Christopher Faulet9768c262018-10-22 09:34:31 +0200967 (*(p + 5) > '1' ||
968 (*(p + 5) == '1' && *(p + 7) >= '1')))
969 h1m->flags |= H1_MF_VER_11;
970}
Christopher Fauletf2824e62018-10-01 12:12:37 +0200971
Christopher Faulet9768c262018-10-22 09:34:31 +0200972/* Parse the response version and set H1_MF_VER_11 on <h1m> if the version is
973 * greater or equal to 1.1
974 */
Christopher Faulet570d1612018-11-26 11:13:57 +0100975static void h1_parse_res_vsn(struct h1m *h1m, const struct htx_sl *sl)
Christopher Faulet9768c262018-10-22 09:34:31 +0200976{
Christopher Faulet570d1612018-11-26 11:13:57 +0100977 const char *p = HTX_SL_RES_VPTR(sl);
Christopher Fauletf2824e62018-10-01 12:12:37 +0200978
Christopher Faulet570d1612018-11-26 11:13:57 +0100979 if ((HTX_SL_RES_VLEN(sl) == 8) &&
Christopher Faulet9768c262018-10-22 09:34:31 +0200980 (*(p + 5) > '1' ||
981 (*(p + 5) == '1' && *(p + 7) >= '1')))
982 h1m->flags |= H1_MF_VER_11;
983}
Christopher Fauletf2824e62018-10-01 12:12:37 +0200984
Christopher Fauletf2824e62018-10-01 12:12:37 +0200985/* Deduce the connection mode of the client connection, depending on the
986 * configuration and the H1 message flags. This function is called twice, the
987 * first time when the request is parsed and the second time when the response
988 * is parsed.
989 */
990static void h1_set_cli_conn_mode(struct h1s *h1s, struct h1m *h1m)
991{
992 struct proxy *fe = h1s->h1c->px;
Christopher Fauletf2824e62018-10-01 12:12:37 +0200993
994 if (h1m->flags & H1_MF_RESP) {
Christopher Fauletb992af02019-03-28 15:42:24 +0100995 /* Output direction: second pass */
Christopher Fauletc75668e2020-12-07 18:10:32 +0100996 if ((h1s->meth == HTTP_METH_CONNECT && h1s->status >= 200 && h1s->status < 300) ||
Christopher Fauletb992af02019-03-28 15:42:24 +0100997 h1s->status == 101) {
998 /* Either we've established an explicit tunnel, or we're
999 * switching the protocol. In both cases, we're very unlikely to
1000 * understand the next protocols. We have to switch to tunnel
1001 * mode, so that we transfer the request and responses then let
1002 * this protocol pass unmodified. When we later implement
1003 * specific parsers for such protocols, we'll want to check the
1004 * Upgrade header which contains information about that protocol
1005 * for responses with status 101 (eg: see RFC2817 about TLS).
1006 */
Christopher Fauletf2824e62018-10-01 12:12:37 +02001007 h1s->flags = (h1s->flags & ~H1S_F_WANT_MSK) | H1S_F_WANT_TUN;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001008 TRACE_STATE("set tunnel mode (resp)", H1_EV_TX_DATA|H1_EV_TX_HDRS, h1s->h1c->conn, h1s);
Christopher Fauletb992af02019-03-28 15:42:24 +01001009 }
1010 else if (h1s->flags & H1S_F_WANT_KAL) {
1011 /* By default the client is in KAL mode. CLOSE mode mean
1012 * it is imposed by the client itself. So only change
1013 * KAL mode here. */
1014 if (!(h1m->flags & H1_MF_XFER_LEN) || (h1m->flags & H1_MF_CONN_CLO)) {
1015 /* no length known or explicit close => close */
1016 h1s->flags = (h1s->flags & ~H1S_F_WANT_MSK) | H1S_F_WANT_CLO;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001017 TRACE_STATE("detect close mode (resp)", H1_EV_TX_DATA|H1_EV_TX_HDRS, h1s->h1c->conn, h1s);
Christopher Fauletb992af02019-03-28 15:42:24 +01001018 }
1019 else if (!(h1m->flags & H1_MF_CONN_KAL) &&
1020 (fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_CLO) {
Ilya Shipitsinc02a23f2020-05-06 00:53:22 +05001021 /* no explicit keep-alive and option httpclose => close */
Christopher Fauletb992af02019-03-28 15:42:24 +01001022 h1s->flags = (h1s->flags & ~H1S_F_WANT_MSK) | H1S_F_WANT_CLO;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001023 TRACE_STATE("force close mode (resp)", H1_EV_TX_DATA|H1_EV_TX_HDRS, h1s->h1c->conn, h1s);
Christopher Fauletb992af02019-03-28 15:42:24 +01001024 }
1025 }
Christopher Fauletf2824e62018-10-01 12:12:37 +02001026 }
1027 else {
Christopher Fauletb992af02019-03-28 15:42:24 +01001028 /* Input direction: first pass */
1029 if (!(h1m->flags & (H1_MF_VER_11|H1_MF_CONN_KAL)) || h1m->flags & H1_MF_CONN_CLO) {
1030 /* no explicit keep-alive in HTTP/1.0 or explicit close => close*/
Christopher Fauletf2824e62018-10-01 12:12:37 +02001031 h1s->flags = (h1s->flags & ~H1S_F_WANT_MSK) | H1S_F_WANT_CLO;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001032 TRACE_STATE("detect close mode (req)", H1_EV_RX_DATA|H1_EV_RX_HDRS, h1s->h1c->conn, h1s);
Christopher Fauletb992af02019-03-28 15:42:24 +01001033 }
Christopher Fauletf2824e62018-10-01 12:12:37 +02001034 }
1035
1036 /* If KAL, check if the frontend is stopping. If yes, switch in CLO mode */
Willy Tarreauc3914d42020-09-24 08:39:22 +02001037 if (h1s->flags & H1S_F_WANT_KAL && fe->disabled) {
Christopher Fauletf2824e62018-10-01 12:12:37 +02001038 h1s->flags = (h1s->flags & ~H1S_F_WANT_MSK) | H1S_F_WANT_CLO;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001039 TRACE_STATE("stopping, set close mode", H1_EV_RX_DATA|H1_EV_RX_HDRS|H1_EV_TX_DATA|H1_EV_TX_HDRS, h1s->h1c->conn, h1s);
1040 }
Christopher Fauletf2824e62018-10-01 12:12:37 +02001041}
1042
1043/* Deduce the connection mode of the client connection, depending on the
1044 * configuration and the H1 message flags. This function is called twice, the
1045 * first time when the request is parsed and the second time when the response
1046 * is parsed.
1047 */
1048static void h1_set_srv_conn_mode(struct h1s *h1s, struct h1m *h1m)
1049{
Olivier Houchardf502aca2018-12-14 19:42:40 +01001050 struct session *sess = h1s->sess;
Christopher Fauletb992af02019-03-28 15:42:24 +01001051 struct proxy *be = h1s->h1c->px;
Olivier Houchardf502aca2018-12-14 19:42:40 +01001052 int fe_flags = sess ? sess->fe->options : 0;
Christopher Fauletf2824e62018-10-01 12:12:37 +02001053
Christopher Fauletf2824e62018-10-01 12:12:37 +02001054 if (h1m->flags & H1_MF_RESP) {
Christopher Fauletb992af02019-03-28 15:42:24 +01001055 /* Input direction: second pass */
Christopher Fauletc75668e2020-12-07 18:10:32 +01001056 if ((h1s->meth == HTTP_METH_CONNECT && h1s->status >= 200 && h1s->status < 300) ||
Christopher Fauletb992af02019-03-28 15:42:24 +01001057 h1s->status == 101) {
1058 /* Either we've established an explicit tunnel, or we're
1059 * switching the protocol. In both cases, we're very unlikely to
1060 * understand the next protocols. We have to switch to tunnel
1061 * mode, so that we transfer the request and responses then let
1062 * this protocol pass unmodified. When we later implement
1063 * specific parsers for such protocols, we'll want to check the
1064 * Upgrade header which contains information about that protocol
1065 * for responses with status 101 (eg: see RFC2817 about TLS).
1066 */
Christopher Fauletf2824e62018-10-01 12:12:37 +02001067 h1s->flags = (h1s->flags & ~H1S_F_WANT_MSK) | H1S_F_WANT_TUN;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001068 TRACE_STATE("set tunnel mode (resp)", H1_EV_RX_DATA|H1_EV_RX_HDRS, h1s->h1c->conn, h1s);
Christopher Fauletb992af02019-03-28 15:42:24 +01001069 }
1070 else if (h1s->flags & H1S_F_WANT_KAL) {
1071 /* By default the server is in KAL mode. CLOSE mode mean
1072 * it is imposed by haproxy itself. So only change KAL
1073 * mode here. */
1074 if (!(h1m->flags & H1_MF_XFER_LEN) || h1m->flags & H1_MF_CONN_CLO ||
1075 !(h1m->flags & (H1_MF_VER_11|H1_MF_CONN_KAL))){
1076 /* no length known or explicit close or no explicit keep-alive in HTTP/1.0 => close */
1077 h1s->flags = (h1s->flags & ~H1S_F_WANT_MSK) | H1S_F_WANT_CLO;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001078 TRACE_STATE("detect close mode (resp)", H1_EV_RX_DATA|H1_EV_RX_HDRS, h1s->h1c->conn, h1s);
Christopher Fauletb992af02019-03-28 15:42:24 +01001079 }
1080 }
Christopher Fauletf2824e62018-10-01 12:12:37 +02001081 }
Christopher Faulet70033782018-12-05 13:50:11 +01001082 else {
Christopher Fauletb992af02019-03-28 15:42:24 +01001083 /* Output direction: first pass */
1084 if (h1m->flags & H1_MF_CONN_CLO) {
1085 /* explicit close => close */
Christopher Faulet70033782018-12-05 13:50:11 +01001086 h1s->flags = (h1s->flags & ~H1S_F_WANT_MSK) | H1S_F_WANT_CLO;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001087 TRACE_STATE("detect close mode (req)", H1_EV_TX_DATA|H1_EV_TX_HDRS, h1s->h1c->conn, h1s);
Christopher Fauletb992af02019-03-28 15:42:24 +01001088 }
1089 else if (!(h1m->flags & H1_MF_CONN_KAL) &&
1090 ((fe_flags & PR_O_HTTP_MODE) == PR_O_HTTP_SCL ||
1091 (be->options & PR_O_HTTP_MODE) == PR_O_HTTP_SCL ||
1092 (fe_flags & PR_O_HTTP_MODE) == PR_O_HTTP_CLO ||
1093 (be->options & PR_O_HTTP_MODE) == PR_O_HTTP_CLO)) {
1094 /* no explicit keep-alive option httpclose/server-close => close */
1095 h1s->flags = (h1s->flags & ~H1S_F_WANT_MSK) | H1S_F_WANT_CLO;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001096 TRACE_STATE("force close mode (req)", H1_EV_TX_DATA|H1_EV_TX_HDRS, h1s->h1c->conn, h1s);
Christopher Fauletb992af02019-03-28 15:42:24 +01001097 }
Christopher Faulet70033782018-12-05 13:50:11 +01001098 }
Christopher Fauletf2824e62018-10-01 12:12:37 +02001099
1100 /* If KAL, check if the backend is stopping. If yes, switch in CLO mode */
Willy Tarreauc3914d42020-09-24 08:39:22 +02001101 if (h1s->flags & H1S_F_WANT_KAL && be->disabled) {
Christopher Fauletf2824e62018-10-01 12:12:37 +02001102 h1s->flags = (h1s->flags & ~H1S_F_WANT_MSK) | H1S_F_WANT_CLO;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001103 TRACE_STATE("stopping, set close mode", H1_EV_RX_DATA|H1_EV_RX_HDRS|H1_EV_TX_DATA|H1_EV_TX_HDRS, h1s->h1c->conn, h1s);
1104 }
Christopher Fauletf2824e62018-10-01 12:12:37 +02001105}
1106
Christopher Fauletb992af02019-03-28 15:42:24 +01001107static void h1_update_req_conn_value(struct h1s *h1s, struct h1m *h1m, struct ist *conn_val)
Christopher Fauletf2824e62018-10-01 12:12:37 +02001108{
1109 struct proxy *px = h1s->h1c->px;
Christopher Fauletf2824e62018-10-01 12:12:37 +02001110
1111 /* Don't update "Connection:" header in TUNNEL mode or if "Upgrage"
1112 * token is found
1113 */
1114 if (h1s->flags & H1S_F_WANT_TUN || h1m->flags & H1_MF_CONN_UPG)
Christopher Faulet9768c262018-10-22 09:34:31 +02001115 return;
Christopher Fauletf2824e62018-10-01 12:12:37 +02001116
1117 if (h1s->flags & H1S_F_WANT_KAL || px->options2 & PR_O2_FAKE_KA) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02001118 if (!(h1m->flags & H1_MF_VER_11)) {
1119 TRACE_STATE("add \"Connection: keep-alive\"", H1_EV_TX_DATA|H1_EV_TX_HDRS, h1s->h1c->conn, h1s);
Christopher Fauletb992af02019-03-28 15:42:24 +01001120 *conn_val = ist("keep-alive");
Christopher Faulet6b81df72019-10-01 22:08:43 +02001121 }
Christopher Fauletf2824e62018-10-01 12:12:37 +02001122 }
1123 else { /* H1S_F_WANT_CLO && !PR_O2_FAKE_KA */
Christopher Faulet6b81df72019-10-01 22:08:43 +02001124 if (h1m->flags & H1_MF_VER_11) {
1125 TRACE_STATE("add \"Connection: close\"", H1_EV_TX_DATA|H1_EV_TX_HDRS, h1s->h1c->conn, h1s);
Christopher Fauletb992af02019-03-28 15:42:24 +01001126 *conn_val = ist("close");
Christopher Faulet6b81df72019-10-01 22:08:43 +02001127 }
Christopher Fauletf2824e62018-10-01 12:12:37 +02001128 }
Christopher Fauletf2824e62018-10-01 12:12:37 +02001129}
1130
Christopher Fauletb992af02019-03-28 15:42:24 +01001131static void h1_update_res_conn_value(struct h1s *h1s, struct h1m *h1m, struct ist *conn_val)
Christopher Fauletf2824e62018-10-01 12:12:37 +02001132{
Christopher Fauletf2824e62018-10-01 12:12:37 +02001133 /* Don't update "Connection:" header in TUNNEL mode or if "Upgrage"
1134 * token is found
1135 */
1136 if (h1s->flags & H1S_F_WANT_TUN || h1m->flags & H1_MF_CONN_UPG)
Christopher Faulet9768c262018-10-22 09:34:31 +02001137 return;
Christopher Fauletf2824e62018-10-01 12:12:37 +02001138
1139 if (h1s->flags & H1S_F_WANT_KAL) {
Christopher Fauletb992af02019-03-28 15:42:24 +01001140 if (!(h1m->flags & H1_MF_VER_11) ||
Christopher Faulet6b81df72019-10-01 22:08:43 +02001141 !((h1m->flags & h1s->req.flags) & H1_MF_VER_11)) {
1142 TRACE_STATE("add \"Connection: keep-alive\"", H1_EV_TX_DATA|H1_EV_TX_HDRS, h1s->h1c->conn, h1s);
Christopher Fauletb992af02019-03-28 15:42:24 +01001143 *conn_val = ist("keep-alive");
Christopher Faulet6b81df72019-10-01 22:08:43 +02001144 }
Christopher Fauletf2824e62018-10-01 12:12:37 +02001145 }
1146 else { /* H1S_F_WANT_CLO */
Christopher Faulet6b81df72019-10-01 22:08:43 +02001147 if (h1m->flags & H1_MF_VER_11) {
1148 TRACE_STATE("add \"Connection: close\"", H1_EV_TX_DATA|H1_EV_TX_HDRS, h1s->h1c->conn, h1s);
Christopher Fauletb992af02019-03-28 15:42:24 +01001149 *conn_val = ist("close");
Christopher Faulet6b81df72019-10-01 22:08:43 +02001150 }
Christopher Fauletf2824e62018-10-01 12:12:37 +02001151 }
Christopher Faulet9768c262018-10-22 09:34:31 +02001152}
Christopher Fauletf2824e62018-10-01 12:12:37 +02001153
Christopher Fauletb992af02019-03-28 15:42:24 +01001154static void h1_process_input_conn_mode(struct h1s *h1s, struct h1m *h1m, struct htx *htx)
Christopher Faulet9768c262018-10-22 09:34:31 +02001155{
Christopher Faulet0a799aa2020-09-24 09:52:52 +02001156 if (!(h1s->h1c->flags & H1C_F_IS_BACK))
Christopher Faulet9768c262018-10-22 09:34:31 +02001157 h1_set_cli_conn_mode(h1s, h1m);
Christopher Fauletb992af02019-03-28 15:42:24 +01001158 else
Christopher Faulet9768c262018-10-22 09:34:31 +02001159 h1_set_srv_conn_mode(h1s, h1m);
Christopher Fauletf2824e62018-10-01 12:12:37 +02001160}
1161
Christopher Fauletb992af02019-03-28 15:42:24 +01001162static void h1_process_output_conn_mode(struct h1s *h1s, struct h1m *h1m, struct ist *conn_val)
1163{
Christopher Faulet0a799aa2020-09-24 09:52:52 +02001164 if (!(h1s->h1c->flags & H1C_F_IS_BACK))
Christopher Fauletb992af02019-03-28 15:42:24 +01001165 h1_set_cli_conn_mode(h1s, h1m);
1166 else
1167 h1_set_srv_conn_mode(h1s, h1m);
1168
1169 if (!(h1m->flags & H1_MF_RESP))
1170 h1_update_req_conn_value(h1s, h1m, conn_val);
1171 else
1172 h1_update_res_conn_value(h1s, h1m, conn_val);
1173}
Christopher Faulete44769b2018-11-29 23:01:45 +01001174
Christopher Faulet98fbe952019-07-22 16:18:24 +02001175/* Try to adjust the case of the message header name using the global map
1176 * <hdrs_map>.
1177 */
1178static void h1_adjust_case_outgoing_hdr(struct h1s *h1s, struct h1m *h1m, struct ist *name)
1179{
1180 struct ebpt_node *node;
1181 struct h1_hdr_entry *entry;
1182
1183 /* No entry in the map, do nothing */
1184 if (eb_is_empty(&hdrs_map.map))
1185 return;
1186
Ilya Shipitsinb8888ab2021-01-06 21:20:16 +05001187 /* No conversion for the request headers */
Christopher Faulet98fbe952019-07-22 16:18:24 +02001188 if (!(h1m->flags & H1_MF_RESP) && !(h1s->h1c->px->options2 & PR_O2_H1_ADJ_BUGSRV))
1189 return;
1190
Ilya Shipitsinb8888ab2021-01-06 21:20:16 +05001191 /* No conversion for the response headers */
Christopher Faulet98fbe952019-07-22 16:18:24 +02001192 if ((h1m->flags & H1_MF_RESP) && !(h1s->h1c->px->options2 & PR_O2_H1_ADJ_BUGCLI))
1193 return;
1194
1195 node = ebis_lookup_len(&hdrs_map.map, name->ptr, name->len);
1196 if (!node)
1197 return;
1198 entry = container_of(node, struct h1_hdr_entry, node);
1199 name->ptr = entry->name.ptr;
1200 name->len = entry->name.len;
1201}
1202
Christopher Faulete44769b2018-11-29 23:01:45 +01001203/* Append the description of what is present in error snapshot <es> into <out>.
1204 * The description must be small enough to always fit in a buffer. The output
1205 * buffer may be the trash so the trash must not be used inside this function.
1206 */
1207static void h1_show_error_snapshot(struct buffer *out, const struct error_snapshot *es)
1208{
1209 chunk_appendf(out,
Christopher Fauletaa75b3d2018-12-05 16:20:40 +01001210 " H1 connection flags 0x%08x, H1 stream flags 0x%08x\n"
1211 " H1 msg state %s(%d), H1 msg flags 0x%08x\n"
1212 " H1 chunk len %lld bytes, H1 body len %lld bytes :\n",
1213 es->ctx.h1.c_flags, es->ctx.h1.s_flags,
1214 h1m_state_str(es->ctx.h1.state), es->ctx.h1.state,
1215 es->ctx.h1.m_flags, es->ctx.h1.m_clen, es->ctx.h1.m_blen);
Christopher Faulete44769b2018-11-29 23:01:45 +01001216}
1217/*
1218 * Capture a bad request or response and archive it in the proxy's structure.
1219 * By default it tries to report the error position as h1m->err_pos. However if
1220 * this one is not set, it will then report h1m->next, which is the last known
1221 * parsing point. The function is able to deal with wrapping buffers. It always
1222 * displays buffers as a contiguous area starting at buf->p. The direction is
1223 * determined thanks to the h1m's flags.
1224 */
1225static void h1_capture_bad_message(struct h1c *h1c, struct h1s *h1s,
1226 struct h1m *h1m, struct buffer *buf)
1227{
Christopher Fauletdb2c17d2020-10-15 17:19:46 +02001228 struct session *sess = h1s->sess;
Christopher Faulete44769b2018-11-29 23:01:45 +01001229 struct proxy *proxy = h1c->px;
Olivier Houchardbdb00c52020-03-12 15:30:17 +01001230 struct proxy *other_end;
Christopher Faulete44769b2018-11-29 23:01:45 +01001231 union error_snapshot_ctx ctx;
1232
Christopher Faulet3ced1d12020-11-27 16:44:01 +01001233 if ((h1c->flags & H1C_F_ST_ATTACHED) && h1s->cs->data) {
Olivier Houchardbdb00c52020-03-12 15:30:17 +01001234 if (sess == NULL)
1235 sess = si_strm(h1s->cs->data)->sess;
1236 if (!(h1m->flags & H1_MF_RESP))
1237 other_end = si_strm(h1s->cs->data)->be;
1238 else
1239 other_end = sess->fe;
1240 } else
1241 other_end = NULL;
Christopher Faulete44769b2018-11-29 23:01:45 +01001242
1243 /* http-specific part now */
1244 ctx.h1.state = h1m->state;
1245 ctx.h1.c_flags = h1c->flags;
1246 ctx.h1.s_flags = h1s->flags;
1247 ctx.h1.m_flags = h1m->flags;
1248 ctx.h1.m_clen = h1m->curr_len;
1249 ctx.h1.m_blen = h1m->body_len;
1250
1251 proxy_capture_error(proxy, !!(h1m->flags & H1_MF_RESP), other_end,
1252 h1c->conn->target, sess, buf, 0, 0,
Christopher Fauletaa75b3d2018-12-05 16:20:40 +01001253 (h1m->err_pos >= 0) ? h1m->err_pos : h1m->next,
1254 &ctx, h1_show_error_snapshot);
Christopher Faulete44769b2018-11-29 23:01:45 +01001255}
1256
Christopher Fauletadb22202018-12-12 10:32:09 +01001257/* Emit the chunksize followed by a CRLF in front of data of the buffer
1258 * <buf>. It goes backwards and starts with the byte before the buffer's
1259 * head. The caller is responsible for ensuring there is enough room left before
1260 * the buffer's head for the string.
1261 */
1262static void h1_emit_chunk_size(struct buffer *buf, size_t chksz)
1263{
1264 char *beg, *end;
1265
1266 beg = end = b_head(buf);
1267 *--beg = '\n';
1268 *--beg = '\r';
1269 do {
1270 *--beg = hextab[chksz & 0xF];
1271 } while (chksz >>= 4);
1272 buf->head -= (end - beg);
1273 b_add(buf, end - beg);
1274}
1275
1276/* Emit a CRLF after the data of the buffer <buf>. The caller is responsible for
1277 * ensuring there is enough room left in the buffer for the string. */
1278static void h1_emit_chunk_crlf(struct buffer *buf)
1279{
1280 *(b_peek(buf, b_data(buf))) = '\r';
1281 *(b_peek(buf, b_data(buf) + 1)) = '\n';
1282 b_add(buf, 2);
1283}
1284
Christopher Faulet129817b2018-09-20 16:14:40 +02001285/*
Christopher Faulet5be651d2021-01-22 15:28:03 +01001286 * Switch the stream to tunnel mode. This function must only be called on 2xx
1287 * (successful) replies to CONNECT requests or on 101 (switching protocol).
Christopher Fauletc62c2b92019-03-28 11:41:39 +01001288 */
Christopher Faulet5be651d2021-01-22 15:28:03 +01001289static void h1_set_tunnel_mode(struct h1s *h1s)
Christopher Fauletc62c2b92019-03-28 11:41:39 +01001290{
Christopher Faulet5be651d2021-01-22 15:28:03 +01001291 struct h1c *h1c = h1s->h1c;
Christopher Fauletc62c2b92019-03-28 11:41:39 +01001292
Christopher Faulet5be651d2021-01-22 15:28:03 +01001293 h1s->req.state = H1_MSG_TUNNEL;
1294 h1s->req.flags &= ~(H1_MF_XFER_LEN|H1_MF_CLEN|H1_MF_CHNK);
Christopher Fauletf3158e92019-11-15 11:14:23 +01001295
Christopher Fauletc62c2b92019-03-28 11:41:39 +01001296 h1s->res.state = H1_MSG_TUNNEL;
Christopher Faulet5be651d2021-01-22 15:28:03 +01001297 h1s->res.flags &= ~(H1_MF_XFER_LEN|H1_MF_CLEN|H1_MF_CHNK);
Christopher Fauletf3158e92019-11-15 11:14:23 +01001298
Christopher Faulet5be651d2021-01-22 15:28:03 +01001299 TRACE_STATE("switch H1 stream in tunnel mode", H1_EV_TX_DATA|H1_EV_TX_HDRS, h1c->conn, h1s);
Christopher Fauletdea24742021-01-22 15:12:30 +01001300
Christopher Faulet10a86702021-04-07 14:18:11 +02001301 if (h1s->flags & H1S_F_RX_BLK) {
1302 h1s->flags &= ~H1S_F_RX_BLK;
Christopher Faulet02c92c32021-04-09 12:31:48 +02001303 h1_wake_stream_for_recv(h1s);
Christopher Faulet10a86702021-04-07 14:18:11 +02001304 TRACE_STATE("Re-enable input processing", H1_EV_RX_DATA|H1_EV_H1S_BLK|H1_EV_STRM_WAKE, h1c->conn, h1s);
Christopher Faulet6b81df72019-10-01 22:08:43 +02001305 }
Christopher Faulet10a86702021-04-07 14:18:11 +02001306 if (h1s->flags & H1S_F_TX_BLK) {
1307 h1s->flags &= ~H1S_F_TX_BLK;
Christopher Faulet5be651d2021-01-22 15:28:03 +01001308 h1_wake_stream_for_send(h1s);
Christopher Faulet10a86702021-04-07 14:18:11 +02001309 TRACE_STATE("Re-enable output processing", H1_EV_TX_DATA|H1_EV_H1S_BLK|H1_EV_STRM_WAKE, h1c->conn, h1s);
Christopher Fauletc62c2b92019-03-28 11:41:39 +01001310 }
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001311}
1312
Amaury Denoyelle18ee5c32020-12-11 17:53:02 +01001313/* Search for a websocket key header. The message should have been identified
1314 * as a valid websocket handshake.
Amaury Denoyellec1938232020-12-11 17:53:03 +01001315 *
1316 * On the request side, if found the key is stored in the session. It might be
1317 * needed to calculate response key if the server side is using http/2.
1318 *
Amaury Denoyelleaad333a2020-12-11 17:53:07 +01001319 * On the response side, the key might be verified if haproxy has been
1320 * responsible for the generation of a key. This happens when a h2 client is
1321 * interfaced with a h1 server.
1322 *
1323 * Returns 0 if no key found or invalid key
Amaury Denoyelle18ee5c32020-12-11 17:53:02 +01001324 */
1325static int h1_search_websocket_key(struct h1s *h1s, struct h1m *h1m, struct htx *htx)
1326{
1327 struct htx_blk *blk;
1328 enum htx_blk_type type;
Amaury Denoyellec1938232020-12-11 17:53:03 +01001329 struct ist n, v;
Amaury Denoyelle18ee5c32020-12-11 17:53:02 +01001330 int ws_key_found = 0, idx;
1331
1332 idx = htx_get_head(htx); // returns the SL that we skip
1333 while ((idx = htx_get_next(htx, idx)) != -1) {
1334 blk = htx_get_blk(htx, idx);
1335 type = htx_get_blk_type(blk);
1336
1337 if (type == HTX_BLK_UNUSED)
1338 continue;
1339
1340 if (type != HTX_BLK_HDR)
1341 break;
1342
1343 n = htx_get_blk_name(htx, blk);
Amaury Denoyellec1938232020-12-11 17:53:03 +01001344 v = htx_get_blk_value(htx, blk);
Amaury Denoyelle18ee5c32020-12-11 17:53:02 +01001345
Amaury Denoyellec1938232020-12-11 17:53:03 +01001346 /* Websocket key is base64 encoded of 16 bytes */
1347 if (isteqi(n, ist("sec-websocket-key")) && v.len == 24 &&
Amaury Denoyelle18ee5c32020-12-11 17:53:02 +01001348 !(h1m->flags & H1_MF_RESP)) {
Amaury Denoyellec1938232020-12-11 17:53:03 +01001349 /* Copy the key on request side
1350 * we might need it if the server is using h2 and does
1351 * not provide the response
1352 */
1353 memcpy(h1s->ws_key, v.ptr, 24);
Amaury Denoyelle18ee5c32020-12-11 17:53:02 +01001354 ws_key_found = 1;
1355 break;
1356 }
1357 else if (isteqi(n, ist("sec-websocket-accept")) &&
1358 h1m->flags & H1_MF_RESP) {
Amaury Denoyelleaad333a2020-12-11 17:53:07 +01001359 /* Need to verify the response key if the input was
1360 * generated by haproxy
1361 */
1362 if (h1s->ws_key[0]) {
1363 char key[29];
1364 h1_calculate_ws_output_key(h1s->ws_key, key);
1365 if (!isteqi(ist(key), v))
1366 break;
1367 }
Amaury Denoyelle18ee5c32020-12-11 17:53:02 +01001368 ws_key_found = 1;
1369 break;
1370 }
1371 }
1372
1373 /* missing websocket key, reject the message */
1374 if (!ws_key_found) {
1375 htx->flags |= HTX_FL_PARSING_ERROR;
1376 return 0;
1377 }
1378
1379 return 1;
1380}
1381
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001382/*
Christopher Faulet129817b2018-09-20 16:14:40 +02001383 * Parse HTTP/1 headers. It returns the number of bytes parsed if > 0, or 0 if
Christopher Fauletf2824e62018-10-01 12:12:37 +02001384 * it couldn't proceed. Parsing errors are reported by setting H1S_F_*_ERROR
Christopher Faulet58f21da2021-09-20 07:47:27 +02001385 * flag. If more room is requested, H1S_F_RX_CONGESTED flag is set. If relies on
1386 * the function http_parse_msg_hdrs() to do the parsing.
Christopher Faulet129817b2018-09-20 16:14:40 +02001387 */
Christopher Faulet9768c262018-10-22 09:34:31 +02001388static size_t h1_process_headers(struct h1s *h1s, struct h1m *h1m, struct htx *htx,
Christopher Fauletf2824e62018-10-01 12:12:37 +02001389 struct buffer *buf, size_t *ofs, size_t max)
Christopher Faulet129817b2018-09-20 16:14:40 +02001390{
Christopher Fauletf1ba18d2018-11-26 21:37:08 +01001391 union h1_sl h1sl;
Christopher Faulet129817b2018-09-20 16:14:40 +02001392 int ret = 0;
1393
Willy Tarreau022e5e52020-09-10 09:33:15 +02001394 TRACE_ENTER(H1_EV_RX_DATA|H1_EV_RX_HDRS, h1s->h1c->conn, h1s, 0, (size_t[]){max});
Christopher Faulet6b81df72019-10-01 22:08:43 +02001395
Christopher Fauletc4bfa592020-10-06 17:45:34 +02001396 if (h1s->meth == HTTP_METH_CONNECT)
1397 h1m->flags |= H1_MF_METH_CONNECT;
1398 if (h1s->meth == HTTP_METH_HEAD)
1399 h1m->flags |= H1_MF_METH_HEAD;
Christopher Faulet0ef372a2019-04-08 10:57:20 +02001400
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001401 ret = h1_parse_msg_hdrs(h1m, &h1sl, htx, buf, *ofs, max);
Christopher Faulet58f21da2021-09-20 07:47:27 +02001402 if (ret <= 0) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02001403 TRACE_DEVEL("leaving on missing data or error", H1_EV_RX_DATA|H1_EV_RX_HDRS, h1s->h1c->conn, h1s);
Christopher Faulet58f21da2021-09-20 07:47:27 +02001404 if (ret == -1) {
Christopher Faulet60ef12c2020-09-24 10:05:44 +02001405 h1s->flags |= H1S_F_PARSING_ERROR;
Christopher Faulet26a26432021-01-27 11:27:50 +01001406 TRACE_ERROR("parsing error, reject H1 message", H1_EV_RX_DATA|H1_EV_RX_HDRS|H1_EV_H1S_ERR, h1s->h1c->conn, h1s);
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001407 h1_capture_bad_message(h1s->h1c, h1s, h1m, buf);
1408 }
Christopher Faulet58f21da2021-09-20 07:47:27 +02001409 else if (ret == -2) {
1410 TRACE_STATE("RX path congested, waiting for more space", H1_EV_RX_DATA|H1_EV_RX_HDRS|H1_EV_H1S_BLK, h1s->h1c->conn, h1s);
1411 h1s->flags |= H1S_F_RX_CONGESTED;
1412 }
1413 ret = 0;
Christopher Faulet129817b2018-09-20 16:14:40 +02001414 goto end;
1415 }
1416
Amaury Denoyelle18ee5c32020-12-11 17:53:02 +01001417 /* If websocket handshake, search for the websocket key */
1418 if ((h1m->flags & (H1_MF_CONN_UPG|H1_MF_UPG_WEBSOCKET)) ==
1419 (H1_MF_CONN_UPG|H1_MF_UPG_WEBSOCKET)) {
1420 int ws_ret = h1_search_websocket_key(h1s, h1m, htx);
1421 if (!ws_ret) {
Amaury Denoyelle18ee5c32020-12-11 17:53:02 +01001422 h1s->flags |= H1S_F_PARSING_ERROR;
Christopher Faulet26a26432021-01-27 11:27:50 +01001423 TRACE_ERROR("missing/invalid websocket key, reject H1 message", H1_EV_RX_DATA|H1_EV_RX_HDRS|H1_EV_H1S_ERR, h1s->h1c->conn, h1s);
Amaury Denoyelle18ee5c32020-12-11 17:53:02 +01001424 h1_capture_bad_message(h1s->h1c, h1s, h1m, buf);
1425
1426 ret = 0;
1427 goto end;
1428 }
1429 }
1430
Christopher Faulet486498c2019-10-11 14:22:00 +02001431 if (h1m->err_pos >= 0) {
1432 /* Maybe we found an error during the parsing while we were
1433 * configured not to block on that, so we have to capture it
1434 * now.
1435 */
1436 TRACE_STATE("Ignored parsing error", H1_EV_RX_DATA|H1_EV_RX_HDRS, h1s->h1c->conn, h1s);
1437 h1_capture_bad_message(h1s->h1c, h1s, h1m, buf);
1438 }
1439
Christopher Faulet5696f542020-12-02 16:08:38 +01001440 if (!(h1m->flags & H1_MF_RESP)) {
Christopher Fauletf1ba18d2018-11-26 21:37:08 +01001441 h1s->meth = h1sl.rq.meth;
Christopher Faulet5696f542020-12-02 16:08:38 +01001442 if (h1s->meth == HTTP_METH_HEAD)
1443 h1s->flags |= H1S_F_BODYLESS_RESP;
1444 }
1445 else {
Christopher Fauletf1ba18d2018-11-26 21:37:08 +01001446 h1s->status = h1sl.st.status;
Christopher Faulet5696f542020-12-02 16:08:38 +01001447 if (h1s->status == 204 || h1s->status == 304)
1448 h1s->flags |= H1S_F_BODYLESS_RESP;
1449 }
Christopher Fauletb992af02019-03-28 15:42:24 +01001450 h1_process_input_conn_mode(h1s, h1m, htx);
Christopher Faulet9768c262018-10-22 09:34:31 +02001451 *ofs += ret;
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001452
Christopher Faulet129817b2018-09-20 16:14:40 +02001453 end:
Willy Tarreau022e5e52020-09-10 09:33:15 +02001454 TRACE_LEAVE(H1_EV_RX_DATA|H1_EV_RX_HDRS, h1s->h1c->conn, h1s, 0, (size_t[]){ret});
Christopher Faulet129817b2018-09-20 16:14:40 +02001455 return ret;
1456}
1457
1458/*
Christopher Fauletf2824e62018-10-01 12:12:37 +02001459 * Parse HTTP/1 body. It returns the number of bytes parsed if > 0, or 0 if it
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001460 * couldn't proceed. Parsing errors are reported by setting H1S_F_*_ERROR flag.
1461 * If relies on the function http_parse_msg_data() to do the parsing.
Christopher Faulet129817b2018-09-20 16:14:40 +02001462 */
Christopher Fauletaf542632019-10-01 21:52:49 +02001463static size_t h1_process_data(struct h1s *h1s, struct h1m *h1m, struct htx **htx,
Christopher Fauletaa75b3d2018-12-05 16:20:40 +01001464 struct buffer *buf, size_t *ofs, size_t max,
Christopher Faulet30db3d72019-05-17 15:35:33 +02001465 struct buffer *htxbuf)
Christopher Faulet129817b2018-09-20 16:14:40 +02001466{
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001467 int ret;
Christopher Faulet30db3d72019-05-17 15:35:33 +02001468
Willy Tarreau022e5e52020-09-10 09:33:15 +02001469 TRACE_ENTER(H1_EV_RX_DATA|H1_EV_RX_BODY, h1s->h1c->conn, h1s, 0, (size_t[]){max});
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001470 ret = h1_parse_msg_data(h1m, htx, buf, *ofs, max, htxbuf);
Christopher Faulet02a02532019-11-15 09:36:28 +01001471 if (!ret) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02001472 TRACE_DEVEL("leaving on missing data or error", H1_EV_RX_DATA|H1_EV_RX_BODY, h1s->h1c->conn, h1s);
Christopher Faulet02a02532019-11-15 09:36:28 +01001473 if ((*htx)->flags & HTX_FL_PARSING_ERROR) {
Christopher Faulet60ef12c2020-09-24 10:05:44 +02001474 h1s->flags |= H1S_F_PARSING_ERROR;
Christopher Faulet26a26432021-01-27 11:27:50 +01001475 TRACE_ERROR("parsing error, reject H1 message", H1_EV_RX_DATA|H1_EV_RX_BODY|H1_EV_H1S_ERR, h1s->h1c->conn, h1s);
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001476 h1_capture_bad_message(h1s->h1c, h1s, h1m, buf);
Christopher Faulet9768c262018-10-22 09:34:31 +02001477 }
Christopher Faulet02a02532019-11-15 09:36:28 +01001478 goto end;
Christopher Faulet129817b2018-09-20 16:14:40 +02001479 }
1480
Christopher Faulet02a02532019-11-15 09:36:28 +01001481 *ofs += ret;
1482
1483 end:
Christopher Faulet58f21da2021-09-20 07:47:27 +02001484 if (b_data(buf) != *ofs && (h1m->state == H1_MSG_DATA || h1m->state == H1_MSG_TUNNEL)) {
1485 TRACE_STATE("RX path congested, waiting for more space", H1_EV_RX_DATA|H1_EV_RX_BODY|H1_EV_H1S_BLK, h1s->h1c->conn, h1s);
1486 h1s->flags |= H1S_F_RX_CONGESTED;
1487 }
1488
Willy Tarreau022e5e52020-09-10 09:33:15 +02001489 TRACE_LEAVE(H1_EV_RX_DATA|H1_EV_RX_BODY, h1s->h1c->conn, h1s, 0, (size_t[]){ret});
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001490 return ret;
Christopher Faulet129817b2018-09-20 16:14:40 +02001491}
1492
1493/*
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001494 * Parse HTTP/1 trailers. It returns the number of bytes parsed if > 0, or 0 if
1495 * it couldn't proceed. Parsing errors are reported by setting H1S_F_*_ERROR
1496 * flag and filling h1s->err_pos and h1s->err_state fields. This functions is
Christopher Faulet58f21da2021-09-20 07:47:27 +02001497 * responsible to update the parser state <h1m>. If more room is requested,
1498 * H1S_F_RX_CONGESTED flag is set.
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001499 */
1500static size_t h1_process_trailers(struct h1s *h1s, struct h1m *h1m, struct htx *htx,
1501 struct buffer *buf, size_t *ofs, size_t max)
1502{
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001503 int ret;
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001504
Willy Tarreau022e5e52020-09-10 09:33:15 +02001505 TRACE_ENTER(H1_EV_RX_DATA|H1_EV_RX_TLRS, h1s->h1c->conn, h1s, 0, (size_t[]){max});
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001506 ret = h1_parse_msg_tlrs(h1m, htx, buf, *ofs, max);
Christopher Faulet58f21da2021-09-20 07:47:27 +02001507 if (ret <= 0) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02001508 TRACE_DEVEL("leaving on missing data or error", H1_EV_RX_DATA|H1_EV_RX_BODY, h1s->h1c->conn, h1s);
Christopher Faulet58f21da2021-09-20 07:47:27 +02001509 if (ret == -1) {
Christopher Faulet60ef12c2020-09-24 10:05:44 +02001510 h1s->flags |= H1S_F_PARSING_ERROR;
Christopher Faulet26a26432021-01-27 11:27:50 +01001511 TRACE_ERROR("parsing error, reject H1 message", H1_EV_RX_DATA|H1_EV_RX_TLRS|H1_EV_H1S_ERR, h1s->h1c->conn, h1s);
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001512 h1_capture_bad_message(h1s->h1c, h1s, h1m, buf);
1513 }
Christopher Faulet58f21da2021-09-20 07:47:27 +02001514 else if (ret == -2) {
1515 TRACE_STATE("RX path congested, waiting for more space", H1_EV_RX_DATA|H1_EV_RX_TLRS|H1_EV_H1S_BLK, h1s->h1c->conn, h1s);
1516 h1s->flags |= H1S_F_RX_CONGESTED;
1517 }
1518 ret = 0;
Christopher Faulet02a02532019-11-15 09:36:28 +01001519 goto end;
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001520 }
Christopher Faulet6b81df72019-10-01 22:08:43 +02001521
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001522 *ofs += ret;
Christopher Faulet02a02532019-11-15 09:36:28 +01001523
1524 end:
Willy Tarreau022e5e52020-09-10 09:33:15 +02001525 TRACE_LEAVE(H1_EV_RX_DATA|H1_EV_RX_TLRS, h1s->h1c->conn, h1s, 0, (size_t[]){ret});
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001526 return ret;
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001527}
1528
1529/*
Christopher Faulet129817b2018-09-20 16:14:40 +02001530 * Process incoming data. It parses data and transfer them from h1c->ibuf into
Christopher Faulet539e0292018-11-19 10:40:09 +01001531 * <buf>. It returns the number of bytes parsed and transferred if > 0, or 0 if
1532 * it couldn't proceed.
Christopher Faulet58f21da2021-09-20 07:47:27 +02001533 *
1534 * WARNING: H1S_F_RX_CONGESTED flag must be removed before processing input data.
Christopher Faulet129817b2018-09-20 16:14:40 +02001535 */
Christopher Faulet30db3d72019-05-17 15:35:33 +02001536static size_t h1_process_input(struct h1c *h1c, struct buffer *buf, size_t count)
Christopher Faulet51dbc942018-09-13 09:05:15 +02001537{
Christopher Faulet539e0292018-11-19 10:40:09 +01001538 struct h1s *h1s = h1c->h1s;
Christopher Faulet129817b2018-09-20 16:14:40 +02001539 struct h1m *h1m;
Christopher Faulet9768c262018-10-22 09:34:31 +02001540 struct htx *htx;
Christopher Fauletc4bfa592020-10-06 17:45:34 +02001541 size_t data;
1542 size_t ret = 0;
Christopher Faulet129817b2018-09-20 16:14:40 +02001543 size_t total = 0;
Christopher Faulet51dbc942018-09-13 09:05:15 +02001544
Christopher Faulet539e0292018-11-19 10:40:09 +01001545 htx = htx_from_buf(buf);
Christopher Faulet6b81df72019-10-01 22:08:43 +02001546 TRACE_ENTER(H1_EV_RX_DATA, h1c->conn, h1s, htx, (size_t[]){count});
Willy Tarreau3a6190f2018-12-16 08:29:56 +01001547
Christopher Faulet60ef12c2020-09-24 10:05:44 +02001548 h1m = (!(h1c->flags & H1C_F_IS_BACK) ? &h1s->req : &h1s->res);
Christopher Faulet74027762019-02-26 14:45:05 +01001549 data = htx->data;
Christopher Fauletc4bfa592020-10-06 17:45:34 +02001550
Christopher Faulet2eed8002020-12-07 11:26:13 +01001551 if (h1s->flags & (H1S_F_PARSING_ERROR|H1S_F_NOT_IMPL_ERROR))
Christopher Faulet0e54d542019-07-04 21:22:34 +02001552 goto end;
1553
Christopher Faulet10a86702021-04-07 14:18:11 +02001554 if (h1s->flags & H1S_F_RX_BLK)
Christopher Fauletec4207c2021-04-08 18:34:30 +02001555 goto out;
Christopher Faulet5be651d2021-01-22 15:28:03 +01001556
Christopher Faulet58f21da2021-09-20 07:47:27 +02001557 /* Always remove congestion flags and try to process more input data */
1558 h1s->flags &= ~H1S_F_RX_CONGESTED;
1559
Christopher Fauletd44ad5b2018-11-19 21:52:12 +01001560 do {
Christopher Faulet30db3d72019-05-17 15:35:33 +02001561 size_t used = htx_used_space(htx);
1562
Christopher Faulet129817b2018-09-20 16:14:40 +02001563 if (h1m->state <= H1_MSG_LAST_LF) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02001564 TRACE_PROTO("parsing message headers", H1_EV_RX_DATA|H1_EV_RX_HDRS, h1c->conn, h1s);
Christopher Faulet539e0292018-11-19 10:40:09 +01001565 ret = h1_process_headers(h1s, h1m, htx, &h1c->ibuf, &total, count);
Christopher Faulet129817b2018-09-20 16:14:40 +02001566 if (!ret)
1567 break;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001568
1569 TRACE_USER((!(h1m->flags & H1_MF_RESP) ? "rcvd H1 request headers" : "rcvd H1 response headers"),
1570 H1_EV_RX_DATA|H1_EV_RX_HDRS, h1c->conn, h1s, htx, (size_t[]){ret});
1571
Christopher Fauletb75b5ea2019-05-17 08:37:28 +02001572 if ((h1m->flags & H1_MF_RESP) &&
1573 h1s->status < 200 && (h1s->status == 100 || h1s->status >= 102)) {
1574 h1m_init_res(&h1s->res);
1575 h1m->flags |= (H1_MF_NO_PHDR|H1_MF_CLEAN_CONN_HDR);
Christopher Faulet6b81df72019-10-01 22:08:43 +02001576 TRACE_STATE("1xx response rcvd", H1_EV_RX_DATA|H1_EV_RX_HDRS, h1c->conn, h1s);
Christopher Fauletb75b5ea2019-05-17 08:37:28 +02001577 }
Christopher Faulet129817b2018-09-20 16:14:40 +02001578 }
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001579 else if (h1m->state < H1_MSG_TRAILERS) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02001580 TRACE_PROTO("parsing message payload", H1_EV_RX_DATA|H1_EV_RX_BODY, h1c->conn, h1s);
Christopher Fauletaf542632019-10-01 21:52:49 +02001581 ret = h1_process_data(h1s, h1m, &htx, &h1c->ibuf, &total, count, buf);
Christopher Faulet76014fd2019-12-10 11:47:22 +01001582 if (!ret && h1m->state != H1_MSG_DONE)
Christopher Faulet129817b2018-09-20 16:14:40 +02001583 break;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001584
1585 TRACE_PROTO((!(h1m->flags & H1_MF_RESP) ? "rcvd H1 request payload data" : "rcvd H1 response payload data"),
1586 H1_EV_RX_DATA|H1_EV_RX_BODY, h1c->conn, h1s, htx, (size_t[]){ret});
Christopher Faulet129817b2018-09-20 16:14:40 +02001587 }
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001588 else if (h1m->state == H1_MSG_TRAILERS) {
Christopher Faulet76014fd2019-12-10 11:47:22 +01001589 TRACE_PROTO("parsing message trailers", H1_EV_RX_DATA|H1_EV_RX_TLRS, h1c->conn, h1s);
1590 ret = h1_process_trailers(h1s, h1m, htx, &h1c->ibuf, &total, count);
1591 if (!ret && h1m->state != H1_MSG_DONE)
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001592 break;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001593
Christopher Faulet76014fd2019-12-10 11:47:22 +01001594 TRACE_PROTO((!(h1m->flags & H1_MF_RESP) ? "rcvd H1 request trailers" : "rcvd H1 response trailers"),
1595 H1_EV_RX_DATA|H1_EV_RX_TLRS, h1c->conn, h1s, htx, (size_t[]){ret});
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001596 }
Christopher Fauletcb55f482018-12-10 11:56:47 +01001597 else if (h1m->state == H1_MSG_DONE) {
Christopher Fauletd1ac2b92020-12-02 19:12:22 +01001598 TRACE_USER((!(h1m->flags & H1_MF_RESP) ? "H1 request fully rcvd" : "H1 response fully rcvd"),
1599 H1_EV_RX_DATA|H1_EV_RX_EOI, h1c->conn, h1s, htx);
Christopher Faulet76014fd2019-12-10 11:47:22 +01001600
Christopher Faulet5be651d2021-01-22 15:28:03 +01001601 if ((h1m->flags & H1_MF_RESP) &&
1602 ((h1s->meth == HTTP_METH_CONNECT && h1s->status >= 200 && h1s->status < 300) || h1s->status == 101))
1603 h1_set_tunnel_mode(h1s);
Christopher Fauletb385b502021-01-13 18:47:57 +01001604 else {
1605 if (h1s->req.state < H1_MSG_DONE || h1s->res.state < H1_MSG_DONE) {
1606 /* Unfinished transaction: block this input side waiting the end of the output side */
Christopher Faulet10a86702021-04-07 14:18:11 +02001607 h1s->flags |= H1S_F_RX_BLK;
1608 TRACE_STATE("Disable input processing", H1_EV_RX_DATA|H1_EV_H1S_BLK, h1c->conn, h1s);
Christopher Fauletb385b502021-01-13 18:47:57 +01001609 }
Christopher Faulet10a86702021-04-07 14:18:11 +02001610 if (h1s->flags & H1S_F_TX_BLK) {
1611 h1s->flags &= ~H1S_F_TX_BLK;
Christopher Faulet02c92c32021-04-09 12:31:48 +02001612 h1_wake_stream_for_send(h1s);
Christopher Faulet10a86702021-04-07 14:18:11 +02001613 TRACE_STATE("Re-enable output processing", H1_EV_TX_DATA|H1_EV_H1S_BLK|H1_EV_STRM_WAKE, h1c->conn, h1s);
Christopher Fauletb385b502021-01-13 18:47:57 +01001614 }
Christopher Faulet23021ad2020-07-10 10:01:26 +02001615 break;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001616 }
Christopher Fauletcb55f482018-12-10 11:56:47 +01001617 }
Christopher Fauletf2824e62018-10-01 12:12:37 +02001618 else if (h1m->state == H1_MSG_TUNNEL) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02001619 TRACE_PROTO("parsing tunneled data", H1_EV_RX_DATA, h1c->conn, h1s);
Christopher Fauletaf542632019-10-01 21:52:49 +02001620 ret = h1_process_data(h1s, h1m, &htx, &h1c->ibuf, &total, count, buf);
Christopher Faulet9768c262018-10-22 09:34:31 +02001621 if (!ret)
1622 break;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001623
1624 TRACE_PROTO((!(h1m->flags & H1_MF_RESP) ? "rcvd H1 request tunneled data" : "rcvd H1 response tunneled data"),
1625 H1_EV_RX_DATA|H1_EV_RX_EOI, h1c->conn, h1s, htx, (size_t[]){ret});
Christopher Fauletf2824e62018-10-01 12:12:37 +02001626 }
Christopher Faulet129817b2018-09-20 16:14:40 +02001627 else {
Christopher Faulet60ef12c2020-09-24 10:05:44 +02001628 h1s->flags |= H1S_F_PARSING_ERROR;
Christopher Faulet129817b2018-09-20 16:14:40 +02001629 break;
1630 }
1631
Christopher Faulet30db3d72019-05-17 15:35:33 +02001632 count -= htx_used_space(htx) - used;
Christopher Faulet58f21da2021-09-20 07:47:27 +02001633 } while (!(h1s->flags & (H1S_F_PARSING_ERROR|H1S_F_NOT_IMPL_ERROR|H1S_F_RX_BLK|H1S_F_RX_CONGESTED)));
Christopher Faulet5be651d2021-01-22 15:28:03 +01001634
Christopher Faulet129817b2018-09-20 16:14:40 +02001635
Christopher Faulet2eed8002020-12-07 11:26:13 +01001636 if (h1s->flags & (H1S_F_PARSING_ERROR|H1S_F_NOT_IMPL_ERROR)) {
Christopher Faulet26a26432021-01-27 11:27:50 +01001637 TRACE_ERROR("parsing or not-implemented error", H1_EV_RX_DATA|H1_EV_H1S_ERR, h1c->conn, h1s);
Christopher Fauletc4bfa592020-10-06 17:45:34 +02001638 goto err;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001639 }
Christopher Faulet129817b2018-09-20 16:14:40 +02001640
Christopher Faulet539e0292018-11-19 10:40:09 +01001641 b_del(&h1c->ibuf, total);
1642
Christopher Faulet27ba2dc2018-12-05 11:53:24 +01001643 htx_to_buf(htx, buf);
Christopher Fauletc4bfa592020-10-06 17:45:34 +02001644 TRACE_DEVEL("incoming data parsed", H1_EV_RX_DATA, h1c->conn, h1s, htx, (size_t[]){ret});
1645
Christopher Faulet30db3d72019-05-17 15:35:33 +02001646 ret = htx->data - data;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001647 if ((h1c->flags & H1C_F_IN_FULL) && buf_room_for_htx_data(&h1c->ibuf)) {
Christopher Faulet539e0292018-11-19 10:40:09 +01001648 h1c->flags &= ~H1C_F_IN_FULL;
Christopher Fauletc4bfa592020-10-06 17:45:34 +02001649 TRACE_STATE("h1c ibuf not full anymore", H1_EV_RX_DATA|H1_EV_H1C_BLK|H1_EV_H1C_WAKE, h1c->conn, h1s);
Willy Tarreau2c1f37d2020-03-04 17:50:02 +01001650 h1c->conn->xprt->subscribe(h1c->conn, h1c->conn->xprt_ctx, SUB_RETRY_RECV, &h1c->wait_event);
Christopher Faulet47365272018-10-31 17:40:50 +01001651 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02001652
Christopher Fauletc4bfa592020-10-06 17:45:34 +02001653 if (!b_data(&h1c->ibuf))
1654 h1_release_buf(h1c, &h1c->ibuf);
1655
Christopher Faulet39c7b6b2021-01-21 17:44:35 +01001656 if (!(h1c->flags & H1C_F_ST_READY)) {
1657 /* The H1 connection is not ready. Most of time, there is no CS
1658 * attached, except for TCP>H1 upgrade, from a TCP frontend. In both
1659 * cases, it is only possible on the client side.
1660 */
1661 BUG_ON(h1c->flags & H1C_F_IS_BACK);
1662
Christopher Fauletc4bfa592020-10-06 17:45:34 +02001663 if (h1m->state <= H1_MSG_LAST_LF) {
1664 TRACE_STATE("Incomplete message, subscribing", H1_EV_RX_DATA|H1_EV_H1C_BLK|H1_EV_H1C_WAKE, h1c->conn, h1s);
1665 h1c->conn->xprt->subscribe(h1c->conn, h1c->conn->xprt_ctx, SUB_RETRY_RECV, &h1c->wait_event);
1666 goto end;
1667 }
1668
Christopher Faulet0f9395d2021-01-21 17:50:19 +01001669 if (!(h1c->flags & H1C_F_ST_ATTACHED)) {
1670 TRACE_DEVEL("request headers fully parsed, create and attach the CS", H1_EV_RX_DATA, h1c->conn, h1s);
1671 BUG_ON(h1s->cs);
1672 if (!h1s_new_cs(h1s, buf)) {
1673 h1c->flags |= H1C_F_ST_ERROR;
1674 goto err;
1675 }
1676 }
1677 else {
1678 TRACE_DEVEL("request headers fully parsed, upgrade the inherited CS", H1_EV_RX_DATA, h1c->conn, h1s);
1679 BUG_ON(h1s->cs == NULL);
1680 if (!h1s_upgrade_cs(h1s, buf)) {
1681 h1c->flags |= H1C_F_ST_ERROR;
Christopher Faulet26a26432021-01-27 11:27:50 +01001682 TRACE_ERROR("H1S upgrade failure", H1_EV_RX_DATA|H1_EV_H1S_ERR, h1c->conn, h1s);
Christopher Faulet0f9395d2021-01-21 17:50:19 +01001683 goto err;
1684 }
Christopher Fauletc4bfa592020-10-06 17:45:34 +02001685 }
1686 }
1687
1688 /* Here h1s->cs is always defined */
Christopher Fauleta583af62020-09-24 15:35:37 +02001689 if (!(h1m->flags & H1_MF_CHNK) &&
1690 ((h1m->state == H1_MSG_DATA && h1m->curr_len) || (h1m->state == H1_MSG_TUNNEL))) {
1691 TRACE_STATE("notify the mux can use splicing", H1_EV_RX_DATA|H1_EV_RX_BODY, h1c->conn, h1s);
1692 h1s->cs->flags |= CS_FL_MAY_SPLICE;
1693 }
1694 else {
1695 TRACE_STATE("notify the mux can't use splicing anymore", H1_EV_RX_DATA|H1_EV_RX_BODY, h1c->conn, h1s);
1696 h1s->cs->flags &= ~CS_FL_MAY_SPLICE;
1697 }
1698
Christopher Fauleta22782b2021-02-08 17:18:01 +01001699 /* Set EOI on conn-stream in DONE state iff:
1700 * - it is a response
1701 * - it is a request but no a protocol upgrade nor a CONNECT
1702 *
1703 * If not set, Wait the response to do so or not depending on the status
Christopher Faulet5be651d2021-01-22 15:28:03 +01001704 * code.
Christopher Faulet3e1748b2020-12-07 18:21:27 +01001705 */
Christopher Fauleta22782b2021-02-08 17:18:01 +01001706 if (((h1m->state == H1_MSG_DONE) && (h1m->flags & H1_MF_RESP)) ||
1707 ((h1m->state == H1_MSG_DONE) && (h1s->meth != HTTP_METH_CONNECT) && !(h1m->flags & H1_MF_CONN_UPG)))
Christopher Fauleta583af62020-09-24 15:35:37 +02001708 h1s->cs->flags |= CS_FL_EOI;
1709
Christopher Fauletec4207c2021-04-08 18:34:30 +02001710 out:
Christopher Faulet58f21da2021-09-20 07:47:27 +02001711 /* When Input data are pending for this message, notify upper layer that
1712 * the mux need more space in the HTX buffer to continue if :
1713 *
1714 * - The parser is blocked in MSG_DATA or MSG_TUNNEL state
1715 * - Headers or trailers are pending to be copied.
1716 */
1717 if (h1s->flags & (H1S_F_RX_CONGESTED)) {
Christopher Fauletcf56b992018-12-11 16:12:31 +01001718 h1s->cs->flags |= CS_FL_RCV_MORE | CS_FL_WANT_ROOM;
Christopher Faulet58f21da2021-09-20 07:47:27 +02001719 TRACE_STATE("waiting for more room", H1_EV_RX_DATA|H1_EV_H1S_BLK, h1c->conn, h1s);
1720 }
Christopher Fauletc4bfa592020-10-06 17:45:34 +02001721 else {
1722 h1s->cs->flags &= ~(CS_FL_RCV_MORE | CS_FL_WANT_ROOM);
1723 if (h1s->flags & H1S_F_REOS) {
1724 h1s->cs->flags |= CS_FL_EOS;
Christopher Faulet1e857782020-12-08 10:38:22 +01001725 if (h1m->state >= H1_MSG_DONE || !(h1m->flags & H1_MF_XFER_LEN)) {
1726 /* DONE or TUNNEL or SHUTR without XFER_LEN, set
1727 * EOI on the conn-stream */
Christopher Fauletc4bfa592020-10-06 17:45:34 +02001728 h1s->cs->flags |= CS_FL_EOI;
Christopher Faulet3e1748b2020-12-07 18:21:27 +01001729 }
Christopher Faulet26a26432021-01-27 11:27:50 +01001730 else if (h1m->state > H1_MSG_LAST_LF && h1m->state < H1_MSG_DONE) {
Christopher Fauletc4bfa592020-10-06 17:45:34 +02001731 h1s->cs->flags |= CS_FL_ERROR;
Christopher Faulet26a26432021-01-27 11:27:50 +01001732 TRACE_ERROR("message aborted, set error on CS", H1_EV_RX_DATA|H1_EV_H1S_ERR, h1c->conn, h1s);
1733 }
Christopher Fauletb385b502021-01-13 18:47:57 +01001734
Christopher Faulet10a86702021-04-07 14:18:11 +02001735 if (h1s->flags & H1S_F_TX_BLK) {
1736 h1s->flags &= ~H1S_F_TX_BLK;
Christopher Faulet02c92c32021-04-09 12:31:48 +02001737 h1_wake_stream_for_send(h1s);
Christopher Faulet10a86702021-04-07 14:18:11 +02001738 TRACE_STATE("Re-enable output processing", H1_EV_TX_DATA|H1_EV_H1S_BLK|H1_EV_STRM_WAKE, h1c->conn, h1s);
Christopher Fauletb385b502021-01-13 18:47:57 +01001739 }
Christopher Fauletc4bfa592020-10-06 17:45:34 +02001740 }
Christopher Faulet539e0292018-11-19 10:40:09 +01001741 }
Christopher Fauletf6ce9d62018-12-10 15:30:06 +01001742
Christopher Fauletc4bfa592020-10-06 17:45:34 +02001743 end:
Christopher Faulet6b81df72019-10-01 22:08:43 +02001744 TRACE_LEAVE(H1_EV_RX_DATA, h1c->conn, h1s, htx, (size_t[]){ret});
Christopher Faulet30db3d72019-05-17 15:35:33 +02001745 return ret;
Christopher Faulet47365272018-10-31 17:40:50 +01001746
Christopher Fauletc4bfa592020-10-06 17:45:34 +02001747 err:
Christopher Faulet27ba2dc2018-12-05 11:53:24 +01001748 htx_to_buf(htx, buf);
Christopher Fauletc4bfa592020-10-06 17:45:34 +02001749 if (h1s->cs)
1750 h1s->cs->flags |= CS_FL_EOI;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001751 TRACE_DEVEL("leaving on error", H1_EV_RX_DATA|H1_EV_STRM_ERR, h1c->conn, h1s);
Christopher Faulet9768c262018-10-22 09:34:31 +02001752 return 0;
Christopher Faulet51dbc942018-09-13 09:05:15 +02001753}
1754
Christopher Faulet129817b2018-09-20 16:14:40 +02001755/*
1756 * Process outgoing data. It parses data and transfer them from the channel buffer into
1757 * h1c->obuf. It returns the number of bytes parsed and transferred if > 0, or
1758 * 0 if it couldn't proceed.
1759 */
Christopher Faulet51dbc942018-09-13 09:05:15 +02001760static size_t h1_process_output(struct h1c *h1c, struct buffer *buf, size_t count)
1761{
Christopher Faulet129817b2018-09-20 16:14:40 +02001762 struct h1s *h1s = h1c->h1s;
1763 struct h1m *h1m;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001764 struct htx *chn_htx = NULL;
Christopher Faulet9768c262018-10-22 09:34:31 +02001765 struct htx_blk *blk;
Christopher Fauletc2518a52019-06-25 21:41:02 +02001766 struct buffer tmp;
Christopher Faulet129817b2018-09-20 16:14:40 +02001767 size_t total = 0;
Christopher Fauletd1ac2b92020-12-02 19:12:22 +01001768 int last_data = 0;
Amaury Denoyellec1938232020-12-11 17:53:03 +01001769 int ws_key_found = 0;
Christopher Faulet51dbc942018-09-13 09:05:15 +02001770
Christopher Faulet94b2c762019-05-24 15:28:57 +02001771 chn_htx = htxbuf(buf);
Christopher Faulet6b81df72019-10-01 22:08:43 +02001772 TRACE_ENTER(H1_EV_TX_DATA, h1c->conn, h1s, chn_htx, (size_t[]){count});
1773
Willy Tarreau37dd54d2018-12-15 14:48:31 +01001774 if (htx_is_empty(chn_htx))
1775 goto end;
Christopher Faulet9768c262018-10-22 09:34:31 +02001776
Christopher Faulet10a86702021-04-07 14:18:11 +02001777 if (h1s->flags & (H1S_F_PROCESSING_ERROR|H1S_F_TX_BLK))
Christopher Fauletdea24742021-01-22 15:12:30 +01001778 goto end;
1779
Christopher Faulet51dbc942018-09-13 09:05:15 +02001780 if (!h1_get_buf(h1c, &h1c->obuf)) {
1781 h1c->flags |= H1C_F_OUT_ALLOC;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001782 TRACE_STATE("waiting for h1c obuf allocation", H1_EV_TX_DATA|H1_EV_H1S_BLK, h1c->conn, h1s);
Christopher Faulet51dbc942018-09-13 09:05:15 +02001783 goto end;
1784 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02001785
Christopher Faulet60ef12c2020-09-24 10:05:44 +02001786 h1m = (!(h1c->flags & H1C_F_IS_BACK) ? &h1s->res : &h1s->req);
Christopher Faulet9768c262018-10-22 09:34:31 +02001787
Willy Tarreau37dd54d2018-12-15 14:48:31 +01001788 /* the htx is non-empty thus has at least one block */
Willy Tarreau3815b222018-12-11 19:50:43 +01001789 blk = htx_get_head_blk(chn_htx);
Christopher Faulet9768c262018-10-22 09:34:31 +02001790
Willy Tarreau3815b222018-12-11 19:50:43 +01001791 /* Perform some optimizations to reduce the number of buffer copies.
1792 * First, if the mux's buffer is empty and the htx area contains
1793 * exactly one data block of the same size as the requested count,
1794 * then it's possible to simply swap the caller's buffer with the
1795 * mux's output buffer and adjust offsets and length to match the
1796 * entire DATA HTX block in the middle. In this case we perform a
1797 * true zero-copy operation from end-to-end. This is the situation
1798 * that happens all the time with large files. Second, if this is not
1799 * possible, but the mux's output buffer is empty, we still have an
1800 * opportunity to avoid the copy to the intermediary buffer, by making
1801 * the intermediary buffer's area point to the output buffer's area.
1802 * In this case we want to skip the HTX header to make sure that copies
1803 * remain aligned and that this operation remains possible all the
1804 * time. This goes for headers, data blocks and any data extracted from
1805 * the HTX blocks.
Willy Tarreauc5efa332018-12-05 11:19:27 +01001806 */
1807 if (!b_data(&h1c->obuf)) {
Christopher Fauletdea24742021-01-22 15:12:30 +01001808 if ((h1m->state == H1_MSG_DATA || h1m->state == H1_MSG_TUNNEL) &&
Christopher Faulet0d7e6342021-02-08 15:56:36 +01001809 (!(h1m->flags & H1_MF_RESP) || !(h1s->flags & H1S_F_BODYLESS_RESP)) &&
Christopher Fauletdea24742021-01-22 15:12:30 +01001810 htx_nbblks(chn_htx) == 1 &&
Willy Tarreau37dd54d2018-12-15 14:48:31 +01001811 htx_get_blk_type(blk) == HTX_BLK_DATA &&
Willy Tarreau3815b222018-12-11 19:50:43 +01001812 htx_get_blk_value(chn_htx, blk).len == count) {
Christopher Faulete5596bf2020-12-02 16:13:22 +01001813 void *old_area;
1814
Christopher Faulet6b81df72019-10-01 22:08:43 +02001815 TRACE_PROTO("sending message data (zero-copy)", H1_EV_TX_DATA|H1_EV_TX_BODY, h1c->conn, h1s, chn_htx, (size_t[]){count});
Christopher Fauletd1ac2b92020-12-02 19:12:22 +01001816 if (h1m->state == H1_MSG_DATA && chn_htx->flags & HTX_FL_EOM) {
1817 TRACE_DEVEL("last message block", H1_EV_TX_DATA|H1_EV_TX_BODY, h1c->conn, h1s);
1818 last_data = 1;
1819 }
1820
Christopher Faulete5596bf2020-12-02 16:13:22 +01001821 old_area = h1c->obuf.area;
Willy Tarreau3815b222018-12-11 19:50:43 +01001822 h1c->obuf.area = buf->area;
Christopher Fauletc2518a52019-06-25 21:41:02 +02001823 h1c->obuf.head = sizeof(struct htx) + blk->addr;
Willy Tarreau3815b222018-12-11 19:50:43 +01001824 h1c->obuf.data = count;
1825
1826 buf->area = old_area;
1827 buf->data = buf->head = 0;
Christopher Fauletadb22202018-12-12 10:32:09 +01001828
Christopher Faulet6b81df72019-10-01 22:08:43 +02001829 chn_htx = (struct htx *)buf->area;
1830 htx_reset(chn_htx);
1831
Christopher Fauletadb22202018-12-12 10:32:09 +01001832 /* The message is chunked. We need to emit the chunk
Christopher Fauletd1ac2b92020-12-02 19:12:22 +01001833 * size and eventually the last chunk. We have at least
1834 * the size of the struct htx to write the chunk
1835 * envelope. It should be enough.
Christopher Fauletadb22202018-12-12 10:32:09 +01001836 */
1837 if (h1m->flags & H1_MF_CHNK) {
1838 h1_emit_chunk_size(&h1c->obuf, count);
1839 h1_emit_chunk_crlf(&h1c->obuf);
Christopher Fauletd1ac2b92020-12-02 19:12:22 +01001840 if (last_data) {
1841 /* Emit the last chunk too at the buffer's end */
1842 b_putblk(&h1c->obuf, "0\r\n\r\n", 5);
1843 }
Christopher Fauletadb22202018-12-12 10:32:09 +01001844 }
1845
Christopher Faulet6b81df72019-10-01 22:08:43 +02001846 if (h1m->state == H1_MSG_DATA)
1847 TRACE_PROTO((!(h1m->flags & H1_MF_RESP) ? "H1 request payload data xferred" : "H1 response payload data xferred"),
Willy Tarreau022e5e52020-09-10 09:33:15 +02001848 H1_EV_TX_DATA|H1_EV_TX_BODY, h1c->conn, h1s, 0, (size_t[]){count});
Christopher Faulet6b81df72019-10-01 22:08:43 +02001849 else
1850 TRACE_PROTO((!(h1m->flags & H1_MF_RESP) ? "H1 request tunneled data xferred" : "H1 response tunneled data xferred"),
Willy Tarreau022e5e52020-09-10 09:33:15 +02001851 H1_EV_TX_DATA|H1_EV_TX_BODY, h1c->conn, h1s, 0, (size_t[]){count});
Christopher Fauletd1ac2b92020-12-02 19:12:22 +01001852
Christopher Faulete5596bf2020-12-02 16:13:22 +01001853 total += count;
Christopher Fauletd1ac2b92020-12-02 19:12:22 +01001854 if (last_data) {
1855 h1m->state = H1_MSG_DONE;
Christopher Faulet10a86702021-04-07 14:18:11 +02001856 if (h1s->flags & H1S_F_RX_BLK) {
1857 h1s->flags &= ~H1S_F_RX_BLK;
Christopher Faulet02c92c32021-04-09 12:31:48 +02001858 h1_wake_stream_for_recv(h1s);
Christopher Faulet10a86702021-04-07 14:18:11 +02001859 TRACE_STATE("Re-enable input processing", H1_EV_TX_DATA|H1_EV_H1S_BLK|H1_EV_STRM_WAKE, h1c->conn, h1s);
Christopher Fauletd1ac2b92020-12-02 19:12:22 +01001860 }
1861
1862 TRACE_USER((!(h1m->flags & H1_MF_RESP) ? "H1 request fully xferred" : "H1 response fully xferred"),
1863 H1_EV_TX_DATA, h1c->conn, h1s);
1864 }
Willy Tarreau3815b222018-12-11 19:50:43 +01001865 goto out;
1866 }
Christopher Fauletc2518a52019-06-25 21:41:02 +02001867 tmp.area = h1c->obuf.area + h1c->obuf.head;
Willy Tarreauc5efa332018-12-05 11:19:27 +01001868 }
Christopher Fauletc2518a52019-06-25 21:41:02 +02001869 else
1870 tmp.area = trash.area;
Christopher Faulet9768c262018-10-22 09:34:31 +02001871
Christopher Fauletc2518a52019-06-25 21:41:02 +02001872 tmp.data = 0;
1873 tmp.size = b_room(&h1c->obuf);
Christopher Faulet10a86702021-04-07 14:18:11 +02001874 while (count && !(h1s->flags & (H1S_F_PROCESSING_ERROR|H1S_F_TX_BLK)) && blk) {
Christopher Faulet570d1612018-11-26 11:13:57 +01001875 struct htx_sl *sl;
Christopher Faulet9768c262018-10-22 09:34:31 +02001876 struct ist n, v;
Christopher Fauletb2e84162018-12-06 11:39:49 +01001877 enum htx_blk_type type = htx_get_blk_type(blk);
Christopher Faulet9768c262018-10-22 09:34:31 +02001878 uint32_t sz = htx_get_blksz(blk);
Christopher Fauletd9233f02019-10-14 14:01:24 +02001879 uint32_t vlen, chklen;
Christopher Faulet9768c262018-10-22 09:34:31 +02001880
Christopher Fauletb2e84162018-12-06 11:39:49 +01001881 vlen = sz;
Christopher Fauletd9233f02019-10-14 14:01:24 +02001882 if (type != HTX_BLK_DATA && vlen > count)
1883 goto full;
Christopher Faulet9768c262018-10-22 09:34:31 +02001884
Christopher Faulet94b2c762019-05-24 15:28:57 +02001885 if (type == HTX_BLK_UNUSED)
1886 goto nextblk;
Christopher Faulet9768c262018-10-22 09:34:31 +02001887
Christopher Faulet94b2c762019-05-24 15:28:57 +02001888 switch (h1m->state) {
1889 case H1_MSG_RQBEFORE:
1890 if (type != HTX_BLK_REQ_SL)
1891 goto error;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001892 TRACE_USER("sending request headers", H1_EV_TX_DATA|H1_EV_TX_HDRS, h1c->conn, h1s, chn_htx);
Christopher Faulet9768c262018-10-22 09:34:31 +02001893 sl = htx_get_blk_ptr(chn_htx, blk);
Christopher Faulet570d1612018-11-26 11:13:57 +01001894 h1s->meth = sl->info.req.meth;
Christopher Faulet9768c262018-10-22 09:34:31 +02001895 h1_parse_req_vsn(h1m, sl);
Christopher Faulet53a899b2019-10-08 16:38:42 +02001896 if (!h1_format_htx_reqline(sl, &tmp))
Christopher Fauleta61aa542019-10-14 14:17:00 +02001897 goto full;
Christopher Faulet9768c262018-10-22 09:34:31 +02001898 h1m->flags |= H1_MF_XFER_LEN;
Christopher Faulet1f890dd2019-02-18 10:33:16 +01001899 if (sl->flags & HTX_SL_F_BODYLESS)
1900 h1m->flags |= H1_MF_CLEN;
Christopher Faulet9768c262018-10-22 09:34:31 +02001901 h1m->state = H1_MSG_HDR_FIRST;
Christopher Faulet5696f542020-12-02 16:08:38 +01001902 if (h1s->meth == HTTP_METH_HEAD)
1903 h1s->flags |= H1S_F_BODYLESS_RESP;
Christopher Faulet10a86702021-04-07 14:18:11 +02001904 if (h1s->flags & H1S_F_RX_BLK) {
1905 h1s->flags &= ~H1S_F_RX_BLK;
Christopher Faulet02c92c32021-04-09 12:31:48 +02001906 h1_wake_stream_for_recv(h1s);
Christopher Faulet10a86702021-04-07 14:18:11 +02001907 TRACE_STATE("Re-enable input processing", H1_EV_TX_DATA|H1_EV_H1S_BLK|H1_EV_STRM_WAKE, h1c->conn, h1s);
Christopher Faulet089acd52020-09-21 10:57:52 +02001908 }
Christopher Faulet129817b2018-09-20 16:14:40 +02001909 break;
Christopher Faulet129817b2018-09-20 16:14:40 +02001910
Christopher Faulet94b2c762019-05-24 15:28:57 +02001911 case H1_MSG_RPBEFORE:
1912 if (type != HTX_BLK_RES_SL)
1913 goto error;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001914 TRACE_USER("sending response headers", H1_EV_TX_DATA|H1_EV_TX_HDRS, h1c->conn, h1s, chn_htx);
Christopher Faulet9768c262018-10-22 09:34:31 +02001915 sl = htx_get_blk_ptr(chn_htx, blk);
Christopher Faulet570d1612018-11-26 11:13:57 +01001916 h1s->status = sl->info.res.status;
Christopher Faulet9768c262018-10-22 09:34:31 +02001917 h1_parse_res_vsn(h1m, sl);
Christopher Faulet53a899b2019-10-08 16:38:42 +02001918 if (!h1_format_htx_stline(sl, &tmp))
Christopher Fauleta61aa542019-10-14 14:17:00 +02001919 goto full;
Christopher Faulet03599112018-11-27 11:21:21 +01001920 if (sl->flags & HTX_SL_F_XFER_LEN)
Christopher Faulet9768c262018-10-22 09:34:31 +02001921 h1m->flags |= H1_MF_XFER_LEN;
Christopher Fauletf3e76192020-12-02 16:46:33 +01001922 if (h1s->status < 200)
Christopher Fauletada34b62019-05-24 16:36:43 +02001923 h1s->flags |= H1S_F_HAVE_O_CONN;
Christopher Faulet5696f542020-12-02 16:08:38 +01001924 else if (h1s->status == 204 || h1s->status == 304)
1925 h1s->flags |= H1S_F_BODYLESS_RESP;
Christopher Faulet9768c262018-10-22 09:34:31 +02001926 h1m->state = H1_MSG_HDR_FIRST;
1927 break;
1928
Christopher Faulet94b2c762019-05-24 15:28:57 +02001929 case H1_MSG_HDR_FIRST:
1930 case H1_MSG_HDR_NAME:
1931 case H1_MSG_HDR_L2_LWS:
1932 if (type == HTX_BLK_EOH)
1933 goto last_lf;
1934 if (type != HTX_BLK_HDR)
1935 goto error;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001936
Christopher Faulet9768c262018-10-22 09:34:31 +02001937 h1m->state = H1_MSG_HDR_NAME;
1938 n = htx_get_blk_name(chn_htx, blk);
1939 v = htx_get_blk_value(chn_htx, blk);
1940
Christopher Faulet86d144c2019-08-14 16:32:25 +02001941 /* Skip all pseudo-headers */
1942 if (*(n.ptr) == ':')
1943 goto skip_hdr;
1944
Christopher Faulet91fcf212020-12-02 16:17:15 +01001945 if (isteq(n, ist("transfer-encoding"))) {
1946 if ((h1m->flags & H1_MF_RESP) && (h1s->status < 200 || h1s->status == 204))
1947 goto skip_hdr;
Christopher Faulet9768c262018-10-22 09:34:31 +02001948 h1_parse_xfer_enc_header(h1m, v);
Christopher Faulet91fcf212020-12-02 16:17:15 +01001949 }
Christopher Fauletb045bb22020-02-28 10:42:20 +01001950 else if (isteq(n, ist("content-length"))) {
Christopher Faulet91fcf212020-12-02 16:17:15 +01001951 if ((h1m->flags & H1_MF_RESP) && (h1s->status < 200 || h1s->status == 204))
1952 goto skip_hdr;
Christopher Faulet5220ef22019-03-27 15:44:56 +01001953 /* Only skip C-L header with invalid value. */
1954 if (h1_parse_cont_len_header(h1m, &v) < 0)
Willy Tarreau27cd2232019-01-03 21:52:42 +01001955 goto skip_hdr;
1956 }
Christopher Fauletb045bb22020-02-28 10:42:20 +01001957 else if (isteq(n, ist("connection"))) {
Christopher Fauletb992af02019-03-28 15:42:24 +01001958 h1_parse_connection_header(h1m, &v);
Christopher Faulet9768c262018-10-22 09:34:31 +02001959 if (!v.len)
1960 goto skip_hdr;
1961 }
Amaury Denoyellec1938232020-12-11 17:53:03 +01001962 else if (isteq(n, ist("upgrade"))) {
1963 h1_parse_upgrade_header(h1m, v);
1964 }
Amaury Denoyelleaad333a2020-12-11 17:53:07 +01001965 else if ((isteq(n, ist("sec-websocket-accept")) &&
1966 h1m->flags & H1_MF_RESP) ||
1967 (isteq(n, ist("sec-websocket-key")) &&
1968 !(h1m->flags & H1_MF_RESP))) {
Amaury Denoyellec1938232020-12-11 17:53:03 +01001969 ws_key_found = 1;
1970 }
Christopher Fauletf9bb8d02021-09-28 10:56:36 +02001971 else if (isteq(n, ist("te"))) {
1972 /* "te" may only be sent with "trailers" if this value
1973 * is present, otherwise it must be deleted.
1974 */
1975 v = istist(v, ist("trailers"));
1976 if (!isttest(v) || (v.len > 8 && v.ptr[8] != ','))
1977 goto skip_hdr;
1978 v = ist("trailers");
1979 }
Christopher Faulet9768c262018-10-22 09:34:31 +02001980
Christopher Faulet67d58092019-10-02 10:51:38 +02001981 /* Skip header if same name is used to add the server name */
1982 if (!(h1m->flags & H1_MF_RESP) && h1c->px->server_id_hdr_name &&
1983 isteqi(n, ist2(h1c->px->server_id_hdr_name, h1c->px->server_id_hdr_len)))
1984 goto skip_hdr;
1985
Christopher Faulet98fbe952019-07-22 16:18:24 +02001986 /* Try to adjust the case of the header name */
1987 if (h1c->px->options2 & (PR_O2_H1_ADJ_BUGCLI|PR_O2_H1_ADJ_BUGSRV))
1988 h1_adjust_case_outgoing_hdr(h1s, h1m, &n);
Christopher Faulet53a899b2019-10-08 16:38:42 +02001989 if (!h1_format_htx_hdr(n, v, &tmp))
Christopher Fauleta61aa542019-10-14 14:17:00 +02001990 goto full;
Christopher Faulet9768c262018-10-22 09:34:31 +02001991 skip_hdr:
1992 h1m->state = H1_MSG_HDR_L2_LWS;
1993 break;
1994
Christopher Faulet94b2c762019-05-24 15:28:57 +02001995 case H1_MSG_LAST_LF:
1996 if (type != HTX_BLK_EOH)
1997 goto error;
1998 last_lf:
Christopher Fauletada34b62019-05-24 16:36:43 +02001999 h1m->state = H1_MSG_LAST_LF;
2000 if (!(h1s->flags & H1S_F_HAVE_O_CONN)) {
Christopher Faulet04f89192019-10-16 09:41:07 +02002001 /* If the reply comes from haproxy while the request is
2002 * not finished, we force the connection close. */
2003 if ((chn_htx->flags & HTX_FL_PROXY_RESP) && h1s->req.state != H1_MSG_DONE) {
2004 h1s->flags = (h1s->flags & ~H1S_F_WANT_MSK) | H1S_F_WANT_CLO;
2005 TRACE_STATE("force close mode (resp)", H1_EV_TX_DATA|H1_EV_TX_HDRS, h1s->h1c->conn, h1s);
2006 }
2007
2008 /* the conn_mode must be processed. So do it */
Christopher Fauleta110ecb2019-06-17 14:07:46 +02002009 n = ist("connection");
Christopher Fauletd1ebb1e2018-11-28 16:32:50 +01002010 v = ist("");
Christopher Fauletb992af02019-03-28 15:42:24 +01002011 h1_process_output_conn_mode(h1s, h1m, &v);
Christopher Fauletd1ebb1e2018-11-28 16:32:50 +01002012 if (v.len) {
Christopher Faulet98fbe952019-07-22 16:18:24 +02002013 /* Try to adjust the case of the header name */
2014 if (h1c->px->options2 & (PR_O2_H1_ADJ_BUGCLI|PR_O2_H1_ADJ_BUGSRV))
2015 h1_adjust_case_outgoing_hdr(h1s, h1m, &n);
Christopher Faulet53a899b2019-10-08 16:38:42 +02002016 if (!h1_format_htx_hdr(n, v, &tmp))
Christopher Fauleta61aa542019-10-14 14:17:00 +02002017 goto full;
Christopher Fauletd1ebb1e2018-11-28 16:32:50 +01002018 }
Christopher Fauletada34b62019-05-24 16:36:43 +02002019 h1s->flags |= H1S_F_HAVE_O_CONN;
Christopher Fauletd1ebb1e2018-11-28 16:32:50 +01002020 }
Willy Tarreau4710d202019-01-03 17:39:54 +01002021
Christopher Fauletc62c2b92019-03-28 11:41:39 +01002022 if ((h1s->meth != HTTP_METH_CONNECT &&
2023 (h1m->flags & (H1_MF_VER_11|H1_MF_RESP|H1_MF_CLEN|H1_MF_CHNK|H1_MF_XFER_LEN)) ==
Christopher Faulet1f890dd2019-02-18 10:33:16 +01002024 (H1_MF_VER_11|H1_MF_XFER_LEN)) ||
Christopher Faulete5596bf2020-12-02 16:13:22 +01002025 (h1s->status >= 200 && !(h1s->flags & H1S_F_BODYLESS_RESP) &&
Christopher Fauletc75668e2020-12-07 18:10:32 +01002026 !(h1s->meth == HTTP_METH_CONNECT && h1s->status >= 200 && h1s->status < 300) &&
Christopher Faulet1f890dd2019-02-18 10:33:16 +01002027 (h1m->flags & (H1_MF_VER_11|H1_MF_RESP|H1_MF_CLEN|H1_MF_CHNK|H1_MF_XFER_LEN)) ==
2028 (H1_MF_VER_11|H1_MF_RESP|H1_MF_XFER_LEN))) {
Willy Tarreau4710d202019-01-03 17:39:54 +01002029 /* chunking needed but header not seen */
Christopher Faulet7a991a92019-10-04 10:23:51 +02002030 n = ist("transfer-encoding");
2031 v = ist("chunked");
2032 if (h1c->px->options2 & (PR_O2_H1_ADJ_BUGCLI|PR_O2_H1_ADJ_BUGSRV))
2033 h1_adjust_case_outgoing_hdr(h1s, h1m, &n);
Christopher Faulet53a899b2019-10-08 16:38:42 +02002034 if (!h1_format_htx_hdr(n, v, &tmp))
Christopher Fauleta61aa542019-10-14 14:17:00 +02002035 goto full;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002036 TRACE_STATE("add \"Transfer-Encoding: chunked\"", H1_EV_TX_DATA|H1_EV_TX_HDRS, h1c->conn, h1s);
Willy Tarreau4710d202019-01-03 17:39:54 +01002037 h1m->flags |= H1_MF_CHNK;
2038 }
2039
Christopher Faulet72ba6cd2019-09-24 16:20:05 +02002040 /* Now add the server name to a header (if requested) */
2041 if (!(h1s->flags & H1S_F_HAVE_SRV_NAME) &&
2042 !(h1m->flags & H1_MF_RESP) && h1c->px->server_id_hdr_name) {
2043 struct server *srv = objt_server(h1c->conn->target);
2044
2045 if (srv) {
2046 n = ist2(h1c->px->server_id_hdr_name, h1c->px->server_id_hdr_len);
2047 v = ist(srv->id);
Christopher Faulet5cef2a62019-10-02 11:06:13 +02002048
2049 /* Try to adjust the case of the header name */
2050 if (h1c->px->options2 & (PR_O2_H1_ADJ_BUGCLI|PR_O2_H1_ADJ_BUGSRV))
2051 h1_adjust_case_outgoing_hdr(h1s, h1m, &n);
Christopher Faulet53a899b2019-10-08 16:38:42 +02002052 if (!h1_format_htx_hdr(n, v, &tmp))
Christopher Fauleta61aa542019-10-14 14:17:00 +02002053 goto full;
Christopher Faulet72ba6cd2019-09-24 16:20:05 +02002054 }
Christopher Faulet6b81df72019-10-01 22:08:43 +02002055 TRACE_STATE("add server name header", H1_EV_TX_DATA|H1_EV_TX_HDRS, h1c->conn, h1s);
Christopher Faulet72ba6cd2019-09-24 16:20:05 +02002056 h1s->flags |= H1S_F_HAVE_SRV_NAME;
2057 }
2058
Amaury Denoyellec1938232020-12-11 17:53:03 +01002059 /* Add websocket handshake key if needed */
2060 if ((h1m->flags & (H1_MF_CONN_UPG|H1_MF_UPG_WEBSOCKET)) == (H1_MF_CONN_UPG|H1_MF_UPG_WEBSOCKET) &&
2061 !ws_key_found) {
Amaury Denoyelleaad333a2020-12-11 17:53:07 +01002062 if (!(h1m->flags & H1_MF_RESP)) {
2063 /* generate a random websocket key
2064 * stored in the session to
2065 * verify it on the response side
2066 */
2067 h1_generate_random_ws_input_key(h1s->ws_key);
2068
2069 if (!h1_format_htx_hdr(ist("Sec-Websocket-Key"),
2070 ist(h1s->ws_key),
2071 &tmp)) {
2072 goto full;
2073 }
2074 }
2075 else {
Amaury Denoyellec1938232020-12-11 17:53:03 +01002076 /* add the response header key */
2077 char key[29];
2078 h1_calculate_ws_output_key(h1s->ws_key, key);
2079 if (!h1_format_htx_hdr(ist("Sec-Websocket-Accept"),
2080 ist(key),
2081 &tmp)) {
2082 goto full;
2083 }
2084 }
2085 }
2086
Christopher Faulet6b81df72019-10-01 22:08:43 +02002087 TRACE_PROTO((!(h1m->flags & H1_MF_RESP) ? "H1 request headers xferred" : "H1 response headers xferred"),
2088 H1_EV_TX_DATA|H1_EV_TX_HDRS, h1c->conn, h1s);
2089
Christopher Fauletc62c2b92019-03-28 11:41:39 +01002090 if (!(h1m->flags & H1_MF_RESP) && h1s->meth == HTTP_METH_CONNECT) {
Christopher Fauletd1ac2b92020-12-02 19:12:22 +01002091 if (!chunk_memcat(&tmp, "\r\n", 2))
2092 goto full;
2093 goto done;
Christopher Fauletc62c2b92019-03-28 11:41:39 +01002094 }
Christopher Fauletf3158e92019-11-15 11:14:23 +01002095 else if ((h1m->flags & H1_MF_RESP) &&
Christopher Fauletc75668e2020-12-07 18:10:32 +01002096 ((h1s->meth == HTTP_METH_CONNECT && h1s->status >= 200 && h1s->status < 300) || h1s->status == 101)) {
Christopher Fauletd1ac2b92020-12-02 19:12:22 +01002097 if (!chunk_memcat(&tmp, "\r\n", 2))
2098 goto full;
2099 goto done;
Christopher Fauletc62c2b92019-03-28 11:41:39 +01002100 }
Christopher Fauletb75b5ea2019-05-17 08:37:28 +02002101 else if ((h1m->flags & H1_MF_RESP) &&
2102 h1s->status < 200 && (h1s->status == 100 || h1s->status >= 102)) {
Christopher Fauletd1ac2b92020-12-02 19:12:22 +01002103 if (!chunk_memcat(&tmp, "\r\n", 2))
2104 goto full;
Christopher Fauletb75b5ea2019-05-17 08:37:28 +02002105 h1m_init_res(&h1s->res);
2106 h1m->flags |= (H1_MF_NO_PHDR|H1_MF_CLEAN_CONN_HDR);
Christopher Fauletada34b62019-05-24 16:36:43 +02002107 h1s->flags &= ~H1S_F_HAVE_O_CONN;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002108 TRACE_STATE("1xx response xferred", H1_EV_TX_DATA|H1_EV_TX_HDRS, h1c->conn, h1s);
Christopher Fauletb75b5ea2019-05-17 08:37:28 +02002109 }
Christopher Fauletd1ac2b92020-12-02 19:12:22 +01002110 else {
2111 /* EOM flag is set and it is the last block */
2112 if (htx_is_unique_blk(chn_htx, blk) && (chn_htx->flags & HTX_FL_EOM)) {
Christopher Faulet3d6e0e32021-02-08 09:34:35 +01002113 if (h1m->flags & H1_MF_CHNK) {
2114 if (!chunk_memcat(&tmp, "\r\n0\r\n\r\n", 7))
2115 goto full;
2116 }
Christopher Fauletd1ac2b92020-12-02 19:12:22 +01002117 else if (!chunk_memcat(&tmp, "\r\n", 2))
2118 goto full;
2119 goto done;
2120 }
2121 else if (!chunk_memcat(&tmp, "\r\n", 2))
2122 goto full;
Christopher Fauletc62c2b92019-03-28 11:41:39 +01002123 h1m->state = H1_MSG_DATA;
Christopher Fauletd1ac2b92020-12-02 19:12:22 +01002124 }
Christopher Faulet9768c262018-10-22 09:34:31 +02002125 break;
2126
Christopher Faulet94b2c762019-05-24 15:28:57 +02002127 case H1_MSG_DATA:
Christopher Fauletf8db73e2019-07-04 17:12:12 +02002128 case H1_MSG_TUNNEL:
Christopher Fauletd1ac2b92020-12-02 19:12:22 +01002129 if (type == HTX_BLK_EOT || type == HTX_BLK_TLR) {
Christopher Faulet0d7e6342021-02-08 15:56:36 +01002130 if ((h1m->flags & H1_MF_RESP) && (h1s->flags & H1S_F_BODYLESS_RESP))
2131 goto trailers;
2132
Christopher Faulet5433a0b2019-06-27 17:40:14 +02002133 /* If the message is not chunked, never
2134 * add the last chunk. */
2135 if ((h1m->flags & H1_MF_CHNK) && !chunk_memcat(&tmp, "0\r\n", 3))
Christopher Fauleta61aa542019-10-14 14:17:00 +02002136 goto full;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002137 TRACE_PROTO("sending message trailers", H1_EV_TX_DATA|H1_EV_TX_TLRS, h1c->conn, h1s, chn_htx);
Christopher Faulet94b2c762019-05-24 15:28:57 +02002138 goto trailers;
Christopher Faulet2d7c5392019-06-03 10:41:26 +02002139 }
Christopher Faulet94b2c762019-05-24 15:28:57 +02002140 else if (type != HTX_BLK_DATA)
2141 goto error;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002142
2143 TRACE_PROTO("sending message data", H1_EV_TX_DATA|H1_EV_TX_BODY, h1c->conn, h1s, chn_htx, (size_t[]){sz});
Christopher Fauletd9233f02019-10-14 14:01:24 +02002144
Christopher Fauletd1ac2b92020-12-02 19:12:22 +01002145 /* It is the last block of this message. After this one,
2146 * only tunneled data may be forwarded. */
2147 if (h1m->state == H1_MSG_DATA && htx_is_unique_blk(chn_htx, blk) && (chn_htx->flags & HTX_FL_EOM)) {
2148 TRACE_DEVEL("last message block", H1_EV_TX_DATA|H1_EV_TX_BODY, h1c->conn, h1s);
2149 last_data = 1;
2150 }
Christopher Fauletd9233f02019-10-14 14:01:24 +02002151
2152 if (vlen > count) {
2153 /* Get the maximum amount of data we can xferred */
2154 vlen = count;
Christopher Fauletd1ac2b92020-12-02 19:12:22 +01002155 last_data = 0;
Christopher Fauletd9233f02019-10-14 14:01:24 +02002156 }
2157
Christopher Faulet0d7e6342021-02-08 15:56:36 +01002158 if (h1m->state == H1_MSG_DATA && (h1m->flags & H1_MF_RESP) && (h1s->flags & H1S_F_BODYLESS_RESP)) {
2159 TRACE_PROTO("Skip data for bodyless response", H1_EV_TX_DATA|H1_EV_TX_BODY, h1c->conn, h1s, chn_htx);
2160 goto skip_data;
2161 }
2162
Christopher Fauletd9233f02019-10-14 14:01:24 +02002163 chklen = 0;
2164 if (h1m->flags & H1_MF_CHNK) {
2165 chklen = b_room(&tmp);
2166 chklen = ((chklen < 16) ? 1 : (chklen < 256) ? 2 :
2167 (chklen < 4096) ? 3 : (chklen < 65536) ? 4 :
2168 (chklen < 1048576) ? 5 : 8);
2169 chklen += 4; /* 2 x CRLF */
Christopher Fauletd1ac2b92020-12-02 19:12:22 +01002170
2171 /* If it is the end of the chunked message (without EOT), reserve the
2172 * last chunk size */
2173 if (last_data)
2174 chklen += 5;
Christopher Fauletd9233f02019-10-14 14:01:24 +02002175 }
2176
2177 if (vlen + chklen > b_room(&tmp)) {
2178 /* too large for the buffer */
2179 if (chklen >= b_room(&tmp))
2180 goto full;
2181 vlen = b_room(&tmp) - chklen;
Christopher Fauletd1ac2b92020-12-02 19:12:22 +01002182 last_data = 0;
Christopher Fauletd9233f02019-10-14 14:01:24 +02002183 }
Christopher Faulet9768c262018-10-22 09:34:31 +02002184 v = htx_get_blk_value(chn_htx, blk);
Christopher Fauletb2e84162018-12-06 11:39:49 +01002185 v.len = vlen;
Christopher Faulet53a899b2019-10-08 16:38:42 +02002186 if (!h1_format_htx_data(v, &tmp, !!(h1m->flags & H1_MF_CHNK)))
Christopher Fauleta61aa542019-10-14 14:17:00 +02002187 goto full;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002188
Christopher Fauletd1ac2b92020-12-02 19:12:22 +01002189 /* Space already reserved, so it must succeed */
2190 if ((h1m->flags & H1_MF_CHNK) && last_data && !chunk_memcat(&tmp, "0\r\n\r\n", 5))
2191 goto error;
2192
Christopher Faulet6b81df72019-10-01 22:08:43 +02002193 if (h1m->state == H1_MSG_DATA)
2194 TRACE_PROTO((!(h1m->flags & H1_MF_RESP) ? "H1 request payload data xferred" : "H1 response payload data xferred"),
Willy Tarreau022e5e52020-09-10 09:33:15 +02002195 H1_EV_TX_DATA|H1_EV_TX_BODY, h1c->conn, h1s, 0, (size_t[]){v.len});
Christopher Faulet6b81df72019-10-01 22:08:43 +02002196 else
2197 TRACE_PROTO((!(h1m->flags & H1_MF_RESP) ? "H1 request tunneled data xferred" : "H1 response tunneled data xferred"),
Willy Tarreau022e5e52020-09-10 09:33:15 +02002198 H1_EV_TX_DATA|H1_EV_TX_BODY, h1c->conn, h1s, 0, (size_t[]){v.len});
Christopher Faulet0d7e6342021-02-08 15:56:36 +01002199
2200 skip_data:
Christopher Fauletd1ac2b92020-12-02 19:12:22 +01002201 if (last_data)
2202 goto done;
Christopher Faulet9768c262018-10-22 09:34:31 +02002203 break;
2204
Christopher Faulet94b2c762019-05-24 15:28:57 +02002205 case H1_MSG_TRAILERS:
Christopher Fauletd1ac2b92020-12-02 19:12:22 +01002206 if (type != HTX_BLK_TLR && type != HTX_BLK_EOT)
Christopher Faulet94b2c762019-05-24 15:28:57 +02002207 goto error;
2208 trailers:
Christopher Faulet9768c262018-10-22 09:34:31 +02002209 h1m->state = H1_MSG_TRAILERS;
Christopher Fauletd1ac2b92020-12-02 19:12:22 +01002210
Christopher Faulet5433a0b2019-06-27 17:40:14 +02002211 /* If the message is not chunked, ignore
2212 * trailers. It may happen with H2 messages. */
Christopher Faulet0a916d22021-02-10 08:48:19 +01002213 if (!(h1m->flags & H1_MF_CHNK)) {
2214 if (type == HTX_BLK_EOT)
2215 goto done;
Christopher Faulet5433a0b2019-06-27 17:40:14 +02002216 break;
Christopher Faulet0a916d22021-02-10 08:48:19 +01002217 }
Christopher Faulet5433a0b2019-06-27 17:40:14 +02002218
Christopher Faulete5596bf2020-12-02 16:13:22 +01002219 if ((h1m->flags & H1_MF_RESP) && (h1s->flags & H1S_F_BODYLESS_RESP)) {
2220 TRACE_PROTO("Skip trailers for bodyless response", H1_EV_TX_DATA|H1_EV_TX_BODY, h1c->conn, h1s, chn_htx);
Christopher Faulet0d7e6342021-02-08 15:56:36 +01002221 if (type == HTX_BLK_EOT)
2222 goto done;
Christopher Faulete5596bf2020-12-02 16:13:22 +01002223 break;
2224 }
2225
Christopher Faulet2d7c5392019-06-03 10:41:26 +02002226 if (type == HTX_BLK_EOT) {
Christopher Fauletc2518a52019-06-25 21:41:02 +02002227 if (!chunk_memcat(&tmp, "\r\n", 2))
Christopher Fauleta61aa542019-10-14 14:17:00 +02002228 goto full;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002229 TRACE_PROTO((!(h1m->flags & H1_MF_RESP) ? "H1 request trailers xferred" : "H1 response trailers xferred"),
2230 H1_EV_TX_DATA|H1_EV_TX_TLRS, h1c->conn, h1s);
Christopher Fauletd1ac2b92020-12-02 19:12:22 +01002231 goto done;
Christopher Faulet32188212018-11-20 18:21:43 +01002232 }
Christopher Faulet2d7c5392019-06-03 10:41:26 +02002233 else { // HTX_BLK_TLR
2234 n = htx_get_blk_name(chn_htx, blk);
2235 v = htx_get_blk_value(chn_htx, blk);
Christopher Faulet98fbe952019-07-22 16:18:24 +02002236
2237 /* Try to adjust the case of the header name */
2238 if (h1c->px->options2 & (PR_O2_H1_ADJ_BUGCLI|PR_O2_H1_ADJ_BUGSRV))
2239 h1_adjust_case_outgoing_hdr(h1s, h1m, &n);
Christopher Faulet53a899b2019-10-08 16:38:42 +02002240 if (!h1_format_htx_hdr(n, v, &tmp))
Christopher Fauleta61aa542019-10-14 14:17:00 +02002241 goto full;
Christopher Faulet2d7c5392019-06-03 10:41:26 +02002242 }
Christopher Faulet9768c262018-10-22 09:34:31 +02002243 break;
2244
Christopher Faulet94b2c762019-05-24 15:28:57 +02002245 case H1_MSG_DONE:
Christopher Fauletd1ac2b92020-12-02 19:12:22 +01002246 TRACE_STATE("unexpected data xferred in done state", H1_EV_TX_DATA|H1_EV_H1C_ERR|H1_EV_H1S_ERR, h1c->conn, h1s);
2247 goto error; /* For now return an error */
2248
Christopher Faulet94b2c762019-05-24 15:28:57 +02002249 done:
Christopher Faulet36893672021-02-10 09:52:07 +01002250 if (!(chn_htx->flags & HTX_FL_EOM)) {
2251 TRACE_STATE("No EOM flags in done state", H1_EV_TX_DATA|H1_EV_H1C_ERR|H1_EV_H1S_ERR, h1c->conn, h1s);
2252 goto error; /* For now return an error */
2253 }
2254
Christopher Faulet94b2c762019-05-24 15:28:57 +02002255 h1m->state = H1_MSG_DONE;
Christopher Fauletdea24742021-01-22 15:12:30 +01002256 if (!(h1m->flags & H1_MF_RESP) && h1s->meth == HTTP_METH_CONNECT) {
Christopher Faulet10a86702021-04-07 14:18:11 +02002257 h1s->flags |= H1S_F_TX_BLK;
2258 TRACE_STATE("Disable output processing", H1_EV_TX_DATA|H1_EV_H1S_BLK, h1c->conn, h1s);
Christopher Fauletdea24742021-01-22 15:12:30 +01002259 }
2260 else if ((h1m->flags & H1_MF_RESP) &&
2261 ((h1s->meth == HTTP_METH_CONNECT && h1s->status >= 200 && h1s->status < 300) || h1s->status == 101)) {
2262 /* a successful reply to a CONNECT or a protocol switching is sent
2263 * to the client. Switch the response to tunnel mode.
2264 */
Christopher Faulet5be651d2021-01-22 15:28:03 +01002265 h1_set_tunnel_mode(h1s);
Christopher Fauletdea24742021-01-22 15:12:30 +01002266 TRACE_STATE("switch H1 response in tunnel mode", H1_EV_TX_DATA|H1_EV_TX_HDRS, h1c->conn, h1s);
Christopher Fauletf3158e92019-11-15 11:14:23 +01002267 }
Christopher Faulet5be651d2021-01-22 15:28:03 +01002268
Christopher Faulet10a86702021-04-07 14:18:11 +02002269 if (h1s->flags & H1S_F_RX_BLK) {
2270 h1s->flags &= ~H1S_F_RX_BLK;
Christopher Faulet02c92c32021-04-09 12:31:48 +02002271 h1_wake_stream_for_recv(h1s);
Christopher Faulet10a86702021-04-07 14:18:11 +02002272 TRACE_STATE("Re-enable input processing", H1_EV_TX_DATA|H1_EV_H1S_BLK|H1_EV_STRM_WAKE, h1c->conn, h1s);
Christopher Fauletcd67bff2019-06-14 16:54:15 +02002273 }
Christopher Faulet6b81df72019-10-01 22:08:43 +02002274
2275 TRACE_USER((!(h1m->flags & H1_MF_RESP) ? "H1 request fully xferred" : "H1 response fully xferred"),
2276 H1_EV_TX_DATA, h1c->conn, h1s);
Christopher Faulet9768c262018-10-22 09:34:31 +02002277 break;
2278
Christopher Faulet9768c262018-10-22 09:34:31 +02002279 default:
Christopher Faulet94b2c762019-05-24 15:28:57 +02002280 error:
Christopher Fauletd87d3fa2019-06-26 15:16:28 +02002281 /* Unexpected error during output processing */
Christopher Faulet69b48212019-09-09 10:11:30 +02002282 chn_htx->flags |= HTX_FL_PROCESSING_ERROR;
Christopher Faulet60ef12c2020-09-24 10:05:44 +02002283 h1s->flags |= H1S_F_PROCESSING_ERROR;
Christopher Fauletdea24742021-01-22 15:12:30 +01002284 h1c->flags |= H1C_F_ST_ERROR;
Christopher Faulet26a26432021-01-27 11:27:50 +01002285 TRACE_ERROR("processing output error, set error on h1c/h1s",
2286 H1_EV_TX_DATA|H1_EV_STRM_ERR|H1_EV_H1C_ERR|H1_EV_H1S_ERR, h1c->conn, h1s);
Christopher Faulet9768c262018-10-22 09:34:31 +02002287 break;
2288 }
Christopher Faulet94b2c762019-05-24 15:28:57 +02002289
2290 nextblk:
Christopher Fauletb2e84162018-12-06 11:39:49 +01002291 total += vlen;
2292 count -= vlen;
2293 if (sz == vlen)
2294 blk = htx_remove_blk(chn_htx, blk);
2295 else {
2296 htx_cut_data_blk(chn_htx, blk, vlen);
2297 break;
2298 }
Christopher Faulet129817b2018-09-20 16:14:40 +02002299 }
2300
Christopher Faulet9768c262018-10-22 09:34:31 +02002301 copy:
Willy Tarreauc5efa332018-12-05 11:19:27 +01002302 /* when the output buffer is empty, tmp shares the same area so that we
2303 * only have to update pointers and lengths.
2304 */
Christopher Fauletc2518a52019-06-25 21:41:02 +02002305 if (tmp.area == h1c->obuf.area + h1c->obuf.head)
2306 h1c->obuf.data = tmp.data;
Willy Tarreauc5efa332018-12-05 11:19:27 +01002307 else
Christopher Fauletc2518a52019-06-25 21:41:02 +02002308 b_putblk(&h1c->obuf, tmp.area, tmp.data);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002309
Willy Tarreau3815b222018-12-11 19:50:43 +01002310 htx_to_buf(chn_htx, buf);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002311 out:
2312 if (!buf_room_for_htx_data(&h1c->obuf)) {
2313 TRACE_STATE("h1c obuf full", H1_EV_TX_DATA|H1_EV_H1S_BLK, h1c->conn, h1s);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002314 h1c->flags |= H1C_F_OUT_FULL;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002315 }
Christopher Faulet9768c262018-10-22 09:34:31 +02002316 end:
Christopher Fauletdea24742021-01-22 15:12:30 +01002317 /* Both the request and the response reached the DONE state. So set EOI
2318 * flag on the conn-stream. Most of time, the flag will already be set,
2319 * except for protocol upgrades. Report an error if data remains blocked
2320 * in the output buffer.
2321 */
2322 if (h1s->req.state == H1_MSG_DONE && h1s->res.state == H1_MSG_DONE) {
2323 if (!htx_is_empty(chn_htx)) {
2324 h1c->flags |= H1C_F_ST_ERROR;
Christopher Faulet26a26432021-01-27 11:27:50 +01002325 TRACE_ERROR("txn done but data waiting to be sent, set error on h1c", H1_EV_H1C_ERR, h1c->conn, h1s);
Christopher Fauletdea24742021-01-22 15:12:30 +01002326 }
2327 h1s->cs->flags |= CS_FL_EOI;
2328 }
2329
Christopher Faulet6b81df72019-10-01 22:08:43 +02002330 TRACE_LEAVE(H1_EV_TX_DATA, h1c->conn, h1s, chn_htx, (size_t[]){total});
Christopher Faulet9768c262018-10-22 09:34:31 +02002331 return total;
Christopher Fauleta61aa542019-10-14 14:17:00 +02002332
2333 full:
2334 TRACE_STATE("h1c obuf full", H1_EV_TX_DATA|H1_EV_H1S_BLK, h1c->conn, h1s);
2335 h1c->flags |= H1C_F_OUT_FULL;
2336 goto copy;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002337}
2338
Christopher Faulet51dbc942018-09-13 09:05:15 +02002339/*********************************************************/
2340/* functions below are I/O callbacks from the connection */
2341/*********************************************************/
Christopher Faulete17fa2f2018-12-11 16:25:36 +01002342static void h1_wake_stream_for_recv(struct h1s *h1s)
2343{
Willy Tarreau1b0d4d12020-01-16 11:03:19 +01002344 if (h1s && h1s->subs && h1s->subs->events & SUB_RETRY_RECV) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02002345 TRACE_POINT(H1_EV_STRM_WAKE, h1s->h1c->conn, h1s);
Willy Tarreau1b0d4d12020-01-16 11:03:19 +01002346 tasklet_wakeup(h1s->subs->tasklet);
2347 h1s->subs->events &= ~SUB_RETRY_RECV;
2348 if (!h1s->subs->events)
2349 h1s->subs = NULL;
Christopher Faulete17fa2f2018-12-11 16:25:36 +01002350 }
2351}
2352static void h1_wake_stream_for_send(struct h1s *h1s)
2353{
Willy Tarreau1b0d4d12020-01-16 11:03:19 +01002354 if (h1s && h1s->subs && h1s->subs->events & SUB_RETRY_SEND) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02002355 TRACE_POINT(H1_EV_STRM_WAKE, h1s->h1c->conn, h1s);
Willy Tarreau1b0d4d12020-01-16 11:03:19 +01002356 tasklet_wakeup(h1s->subs->tasklet);
2357 h1s->subs->events &= ~SUB_RETRY_SEND;
2358 if (!h1s->subs->events)
2359 h1s->subs = NULL;
Christopher Faulete17fa2f2018-12-11 16:25:36 +01002360 }
Christopher Fauletc18fc232020-10-06 17:41:36 +02002361}
2362
Christopher Fauletad4daf62021-01-21 17:49:01 +01002363/* alerts the data layer following this sequence :
2364 * - if the h1s' data layer is subscribed to recv, then it's woken up for recv
2365 * - if its subscribed to send, then it's woken up for send
2366 * - if it was subscribed to neither, its ->wake() callback is called
2367 */
2368static void h1_alert(struct h1s *h1s)
2369{
2370 if (h1s->subs) {
2371 h1_wake_stream_for_recv(h1s);
2372 h1_wake_stream_for_send(h1s);
2373 }
2374 else if (h1s->cs && h1s->cs->data_cb->wake != NULL) {
2375 TRACE_POINT(H1_EV_STRM_WAKE, h1s->h1c->conn, h1s);
2376 h1s->cs->data_cb->wake(h1s->cs);
2377 }
2378}
2379
Christopher Fauletc18fc232020-10-06 17:41:36 +02002380/* Try to send an HTTP error with h1c->errcode status code. It returns 1 on success
2381 * and 0 on error. The flag H1C_F_ERR_PENDING is set on the H1 connection for
2382 * retryable errors (allocation error or buffer full). On success, the error is
2383 * copied in the output buffer.
2384*/
Christopher Fauletc4bfa592020-10-06 17:45:34 +02002385static int h1_send_error(struct h1c *h1c)
Christopher Fauletc18fc232020-10-06 17:41:36 +02002386{
2387 int rc = http_get_status_idx(h1c->errcode);
2388 int ret = 0;
2389
2390 TRACE_ENTER(H1_EV_H1C_ERR, h1c->conn, 0, 0, (size_t[]){h1c->errcode});
2391
2392 /* Verify if the error is mapped on /dev/null or any empty file */
2393 /// XXX: do a function !
2394 if (h1c->px->replies[rc] &&
2395 h1c->px->replies[rc]->type == HTTP_REPLY_ERRMSG &&
2396 h1c->px->replies[rc]->body.errmsg &&
2397 b_is_null(h1c->px->replies[rc]->body.errmsg)) {
2398 /* Empty error, so claim a success */
2399 ret = 1;
2400 goto out;
2401 }
2402
2403 if (h1c->flags & (H1C_F_OUT_ALLOC|H1C_F_OUT_FULL)) {
2404 h1c->flags |= H1C_F_ERR_PENDING;
2405 goto out;
2406 }
2407
2408 if (!h1_get_buf(h1c, &h1c->obuf)) {
2409 h1c->flags |= (H1C_F_OUT_ALLOC|H1C_F_ERR_PENDING);
2410 TRACE_STATE("waiting for h1c obuf allocation", H1_EV_H1C_ERR|H1_EV_H1C_BLK, h1c->conn);
2411 goto out;
2412 }
2413 ret = b_istput(&h1c->obuf, ist2(http_err_msgs[rc], strlen(http_err_msgs[rc])));
2414 if (unlikely(ret <= 0)) {
2415 if (!ret) {
2416 h1c->flags |= (H1C_F_OUT_FULL|H1C_F_ERR_PENDING);
2417 TRACE_STATE("h1c obuf full", H1_EV_H1C_ERR|H1_EV_H1C_BLK, h1c->conn);
2418 goto out;
2419 }
2420 else {
2421 /* we cannot report this error, so claim a success */
2422 ret = 1;
2423 }
2424 }
2425 h1c->flags &= ~H1C_F_ERR_PENDING;
2426 out:
2427 TRACE_LEAVE(H1_EV_H1C_ERR, h1c->conn);
2428 return ret;
2429}
2430
2431/* Try to send a 500 internal error. It relies on h1_send_error to send the
2432 * error. This function takes care of incrementing stats and tracked counters.
2433 */
Christopher Fauletc4bfa592020-10-06 17:45:34 +02002434static int h1_handle_internal_err(struct h1c *h1c)
Christopher Fauletc18fc232020-10-06 17:41:36 +02002435{
2436 struct session *sess = h1c->conn->owner;
2437 int ret = 1;
2438
2439 session_inc_http_req_ctr(sess);
Christopher Fauletc18fc232020-10-06 17:41:36 +02002440 proxy_inc_fe_req_ctr(sess->listener, sess->fe);
Willy Tarreau4781b152021-04-06 13:53:36 +02002441 _HA_ATOMIC_INC(&sess->fe->fe_counters.p.http.rsp[5]);
2442 _HA_ATOMIC_INC(&sess->fe->fe_counters.internal_errors);
William Lallemand36119de2021-03-08 15:26:48 +01002443 if (sess->listener && sess->listener->counters)
Willy Tarreau4781b152021-04-06 13:53:36 +02002444 _HA_ATOMIC_INC(&sess->listener->counters->internal_errors);
Christopher Fauletc18fc232020-10-06 17:41:36 +02002445
2446 h1c->errcode = 500;
2447 ret = h1_send_error(h1c);
2448 sess_log(sess);
2449 return ret;
Christopher Faulete17fa2f2018-12-11 16:25:36 +01002450}
2451
Christopher Fauletc18fc232020-10-06 17:41:36 +02002452/* Try to send a 400 bad request error. It relies on h1_send_error to send the
2453 * error. This function takes care of incrementing stats and tracked counters.
2454 */
Christopher Fauletc4bfa592020-10-06 17:45:34 +02002455static int h1_handle_bad_req(struct h1c *h1c)
Christopher Fauletc18fc232020-10-06 17:41:36 +02002456{
2457 struct session *sess = h1c->conn->owner;
2458 int ret = 1;
2459
2460 if (!b_data(&h1c->ibuf) && ((h1c->flags & H1C_F_WAIT_NEXT_REQ) || (sess->fe->options & PR_O_IGNORE_PRB)))
2461 goto end;
2462
2463 session_inc_http_req_ctr(sess);
2464 session_inc_http_err_ctr(sess);
2465 proxy_inc_fe_req_ctr(sess->listener, sess->fe);
Willy Tarreau4781b152021-04-06 13:53:36 +02002466 _HA_ATOMIC_INC(&sess->fe->fe_counters.p.http.rsp[4]);
2467 _HA_ATOMIC_INC(&sess->fe->fe_counters.failed_req);
William Lallemand36119de2021-03-08 15:26:48 +01002468 if (sess->listener && sess->listener->counters)
Willy Tarreau4781b152021-04-06 13:53:36 +02002469 _HA_ATOMIC_INC(&sess->listener->counters->failed_req);
Christopher Fauletc18fc232020-10-06 17:41:36 +02002470
2471 h1c->errcode = 400;
2472 ret = h1_send_error(h1c);
Christopher Faulet6858d762021-07-26 09:42:49 +02002473 if (b_data(&h1c->ibuf) || !(sess->fe->options & PR_O_NULLNOLOG))
2474 sess_log(sess);
Christopher Fauletc18fc232020-10-06 17:41:36 +02002475
2476 end:
2477 return ret;
2478}
2479
Christopher Faulet2eed8002020-12-07 11:26:13 +01002480/* Try to send a 501 not implemented error. It relies on h1_send_error to send
2481 * the error. This function takes care of incrementing stats and tracked
2482 * counters.
2483 */
2484static int h1_handle_not_impl_err(struct h1c *h1c)
2485{
2486 struct session *sess = h1c->conn->owner;
2487 int ret = 1;
2488
2489 if (!b_data(&h1c->ibuf) && ((h1c->flags & H1C_F_WAIT_NEXT_REQ) || (sess->fe->options & PR_O_IGNORE_PRB)))
2490 goto end;
2491
2492 session_inc_http_req_ctr(sess);
Christopher Faulet2eed8002020-12-07 11:26:13 +01002493 proxy_inc_fe_req_ctr(sess->listener, sess->fe);
Willy Tarreau4781b152021-04-06 13:53:36 +02002494 _HA_ATOMIC_INC(&sess->fe->fe_counters.p.http.rsp[4]);
2495 _HA_ATOMIC_INC(&sess->fe->fe_counters.failed_req);
William Lallemand36119de2021-03-08 15:26:48 +01002496 if (sess->listener && sess->listener->counters)
Willy Tarreau4781b152021-04-06 13:53:36 +02002497 _HA_ATOMIC_INC(&sess->listener->counters->failed_req);
Christopher Faulet2eed8002020-12-07 11:26:13 +01002498
2499 h1c->errcode = 501;
2500 ret = h1_send_error(h1c);
Christopher Faulet6858d762021-07-26 09:42:49 +02002501 if (b_data(&h1c->ibuf) || !(sess->fe->options & PR_O_NULLNOLOG))
2502 sess_log(sess);
Christopher Faulet2eed8002020-12-07 11:26:13 +01002503
2504 end:
2505 return ret;
2506}
2507
Christopher Fauletc18fc232020-10-06 17:41:36 +02002508/* Try to send a 408 timeout error. It relies on h1_send_error to send the
2509 * error. This function takes care of incrementing stats and tracked counters.
2510 */
Christopher Fauletc4bfa592020-10-06 17:45:34 +02002511static int h1_handle_req_tout(struct h1c *h1c)
Christopher Fauletc18fc232020-10-06 17:41:36 +02002512{
2513 struct session *sess = h1c->conn->owner;
2514 int ret = 1;
2515
2516 if (!b_data(&h1c->ibuf) && ((h1c->flags & H1C_F_WAIT_NEXT_REQ) || (sess->fe->options & PR_O_IGNORE_PRB)))
2517 goto end;
2518
2519 session_inc_http_req_ctr(sess);
Christopher Fauletc18fc232020-10-06 17:41:36 +02002520 proxy_inc_fe_req_ctr(sess->listener, sess->fe);
Willy Tarreau4781b152021-04-06 13:53:36 +02002521 _HA_ATOMIC_INC(&sess->fe->fe_counters.p.http.rsp[4]);
2522 _HA_ATOMIC_INC(&sess->fe->fe_counters.failed_req);
William Lallemand36119de2021-03-08 15:26:48 +01002523 if (sess->listener && sess->listener->counters)
Willy Tarreau4781b152021-04-06 13:53:36 +02002524 _HA_ATOMIC_INC(&sess->listener->counters->failed_req);
Christopher Fauletc18fc232020-10-06 17:41:36 +02002525
2526 h1c->errcode = 408;
Christopher Faulet6858d762021-07-26 09:42:49 +02002527 if (b_data(&h1c->ibuf) || !(sess->fe->options & PR_O_NULLNOLOG))
2528 ret = h1_send_error(h1c);
Christopher Fauletc18fc232020-10-06 17:41:36 +02002529 sess_log(sess);
2530 end:
2531 return ret;
2532}
2533
2534
Christopher Faulet51dbc942018-09-13 09:05:15 +02002535/*
2536 * Attempt to read data, and subscribe if none available
2537 */
2538static int h1_recv(struct h1c *h1c)
2539{
2540 struct connection *conn = h1c->conn;
Olivier Houchard75159a92018-12-03 18:46:09 +01002541 size_t ret = 0, max;
Willy Tarreau6e59cb52020-02-20 11:11:50 +01002542 int flags = 0;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002543
Christopher Faulet6b81df72019-10-01 22:08:43 +02002544 TRACE_ENTER(H1_EV_H1C_RECV, h1c->conn);
2545
2546 if (h1c->wait_event.events & SUB_RETRY_RECV) {
2547 TRACE_DEVEL("leaving on sub_recv", H1_EV_H1C_RECV, h1c->conn);
Christopher Fauletc386a882018-12-04 16:06:28 +01002548 return (b_data(&h1c->ibuf));
Christopher Faulet6b81df72019-10-01 22:08:43 +02002549 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02002550
Christopher Fauletae635762020-09-21 11:47:16 +02002551 if ((h1c->flags & H1C_F_WANT_SPLICE) || !h1_recv_allowed(h1c)) {
2552 TRACE_DEVEL("leaving on (want_splice|!recv_allowed)", H1_EV_H1C_RECV, h1c->conn);
Christopher Fauletc4bfa592020-10-06 17:45:34 +02002553 return 1;
Olivier Houchard75159a92018-12-03 18:46:09 +01002554 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02002555
Christopher Fauletf7d5ff32019-04-16 13:55:08 +02002556 if (!h1_get_buf(h1c, &h1c->ibuf)) {
2557 h1c->flags |= H1C_F_IN_ALLOC;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002558 TRACE_STATE("waiting for h1c ibuf allocation", H1_EV_H1C_RECV|H1_EV_H1C_BLK, h1c->conn);
Christopher Fauletc4bfa592020-10-06 17:45:34 +02002559 return 0;
Christopher Faulet9768c262018-10-22 09:34:31 +02002560 }
Christopher Faulet1be55f92018-10-02 15:59:23 +02002561
Olivier Houchard29a22bc2018-12-04 18:16:45 +01002562 /*
2563 * If we only have a small amount of data, realign it,
2564 * it's probably cheaper than doing 2 recv() calls.
2565 */
2566 if (b_data(&h1c->ibuf) > 0 && b_data(&h1c->ibuf) < 128)
2567 b_slow_realign(&h1c->ibuf, trash.area, 0);
2568
Willy Tarreau6e59cb52020-02-20 11:11:50 +01002569 /* avoid useless reads after first responses */
Christopher Fauletc4bfa592020-10-06 17:45:34 +02002570 if (!h1c->h1s ||
2571 (!(h1c->flags & H1C_F_IS_BACK) && h1c->h1s->req.state == H1_MSG_RQBEFORE) ||
2572 ((h1c->flags & H1C_F_IS_BACK) && h1c->h1s->res.state == H1_MSG_RPBEFORE))
Willy Tarreau6e59cb52020-02-20 11:11:50 +01002573 flags |= CO_RFL_READ_ONCE;
2574
Willy Tarreau45f2b892018-12-05 07:59:27 +01002575 max = buf_room_for_htx_data(&h1c->ibuf);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002576 if (max) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02002577 if (h1c->flags & H1C_F_IN_FULL) {
2578 h1c->flags &= ~H1C_F_IN_FULL;
2579 TRACE_STATE("h1c ibuf not full anymore", H1_EV_H1C_RECV|H1_EV_H1C_BLK);
2580 }
Willy Tarreau78f548f2018-12-05 10:02:39 +01002581
2582 if (!b_data(&h1c->ibuf)) {
2583 /* try to pre-align the buffer like the rxbufs will be
2584 * to optimize memory copies.
2585 */
Willy Tarreau78f548f2018-12-05 10:02:39 +01002586 h1c->ibuf.head = sizeof(struct htx);
2587 }
Willy Tarreau6e59cb52020-02-20 11:11:50 +01002588 ret = conn->xprt->rcv_buf(conn, conn->xprt_ctx, &h1c->ibuf, max, flags);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002589 }
Christopher Fauletc4bfa592020-10-06 17:45:34 +02002590 if (max && !ret && h1_recv_allowed(h1c)) {
2591 TRACE_STATE("failed to receive data, subscribing", H1_EV_H1C_RECV, h1c->conn);
2592 conn->xprt->subscribe(conn, conn->xprt_ctx, SUB_RETRY_RECV, &h1c->wait_event);
Christopher Fauletcf56b992018-12-11 16:12:31 +01002593 }
Christopher Fauletc4bfa592020-10-06 17:45:34 +02002594 else {
2595 h1_wake_stream_for_recv(h1c->h1s);
2596 TRACE_DATA("data received", H1_EV_H1C_RECV, h1c->conn, 0, 0, (size_t[]){ret});
Willy Tarreaufbdf90a2019-06-03 13:42:54 +02002597 }
2598
Christopher Faulet51dbc942018-09-13 09:05:15 +02002599 if (!b_data(&h1c->ibuf))
2600 h1_release_buf(h1c, &h1c->ibuf);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002601 else if (!buf_room_for_htx_data(&h1c->ibuf)) {
Christopher Faulet51dbc942018-09-13 09:05:15 +02002602 h1c->flags |= H1C_F_IN_FULL;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002603 TRACE_STATE("h1c ibuf full", H1_EV_H1C_RECV|H1_EV_H1C_BLK);
2604 }
2605
2606 TRACE_LEAVE(H1_EV_H1C_RECV, h1c->conn);
Christopher Fauletc4bfa592020-10-06 17:45:34 +02002607 return !!ret || (conn->flags & CO_FL_ERROR) || conn_xprt_read0_pending(conn);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002608}
2609
2610
2611/*
2612 * Try to send data if possible
2613 */
2614static int h1_send(struct h1c *h1c)
2615{
2616 struct connection *conn = h1c->conn;
2617 unsigned int flags = 0;
2618 size_t ret;
2619 int sent = 0;
2620
Christopher Faulet6b81df72019-10-01 22:08:43 +02002621 TRACE_ENTER(H1_EV_H1C_SEND, h1c->conn);
2622
2623 if (conn->flags & CO_FL_ERROR) {
2624 TRACE_DEVEL("leaving on connection error", H1_EV_H1C_SEND, h1c->conn);
Christopher Fauletc4bfa592020-10-06 17:45:34 +02002625 b_reset(&h1c->obuf);
2626 return 1;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002627 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02002628
2629 if (!b_data(&h1c->obuf))
2630 goto end;
2631
Christopher Faulet46230362019-10-17 16:04:20 +02002632 if (h1c->flags & H1C_F_CO_MSG_MORE)
Christopher Faulet51dbc942018-09-13 09:05:15 +02002633 flags |= CO_SFL_MSG_MORE;
Christopher Faulet46230362019-10-17 16:04:20 +02002634 if (h1c->flags & H1C_F_CO_STREAMER)
2635 flags |= CO_SFL_STREAMER;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002636
Olivier Houcharde179d0e2019-03-21 18:27:17 +01002637 ret = conn->xprt->snd_buf(conn, conn->xprt_ctx, &h1c->obuf, b_data(&h1c->obuf), flags);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002638 if (ret > 0) {
Willy Tarreau022e5e52020-09-10 09:33:15 +02002639 TRACE_DATA("data sent", H1_EV_H1C_SEND, h1c->conn, 0, 0, (size_t[]){ret});
Christopher Faulet6b81df72019-10-01 22:08:43 +02002640 if (h1c->flags & H1C_F_OUT_FULL) {
2641 h1c->flags &= ~H1C_F_OUT_FULL;
2642 TRACE_STATE("h1c obuf not full anymore", H1_EV_STRM_SEND|H1_EV_H1S_BLK, h1c->conn);
2643 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02002644 b_del(&h1c->obuf, ret);
2645 sent = 1;
2646 }
2647
Christopher Faulet145aa472018-12-06 10:56:20 +01002648 if (conn->flags & (CO_FL_ERROR|CO_FL_SOCK_WR_SH)) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02002649 TRACE_DEVEL("connection error or output closed", H1_EV_H1C_SEND, h1c->conn);
Christopher Faulet145aa472018-12-06 10:56:20 +01002650 /* error or output closed, nothing to send, clear the buffer to release it */
2651 b_reset(&h1c->obuf);
2652 }
2653
Christopher Faulet51dbc942018-09-13 09:05:15 +02002654 end:
Christopher Faulet10a86702021-04-07 14:18:11 +02002655 if (!(h1c->flags & H1C_F_OUT_FULL))
Christopher Faulete17fa2f2018-12-11 16:25:36 +01002656 h1_wake_stream_for_send(h1c->h1s);
Olivier Houchard75159a92018-12-03 18:46:09 +01002657
Christopher Faulet51dbc942018-09-13 09:05:15 +02002658 /* We're done, no more to send */
2659 if (!b_data(&h1c->obuf)) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02002660 TRACE_DEVEL("leaving with everything sent", H1_EV_H1C_SEND, h1c->conn);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002661 h1_release_buf(h1c, &h1c->obuf);
Christopher Faulet3ced1d12020-11-27 16:44:01 +01002662 if (h1c->flags & H1C_F_ST_SHUTDOWN) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02002663 TRACE_STATE("process pending shutdown for writes", H1_EV_H1C_SEND, h1c->conn);
Christopher Fauletdb451fb2021-10-27 15:36:38 +02002664 h1_shutw_conn(conn);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002665 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02002666 }
Christopher Faulet6b81df72019-10-01 22:08:43 +02002667 else if (!(h1c->wait_event.events & SUB_RETRY_SEND)) {
2668 TRACE_STATE("more data to send, subscribing", H1_EV_H1C_SEND, h1c->conn);
Olivier Houcharde179d0e2019-03-21 18:27:17 +01002669 conn->xprt->subscribe(conn, conn->xprt_ctx, SUB_RETRY_SEND, &h1c->wait_event);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002670 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02002671
Christopher Faulet6b81df72019-10-01 22:08:43 +02002672 TRACE_LEAVE(H1_EV_H1C_SEND, h1c->conn);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002673 return sent;
2674}
2675
Christopher Faulet51dbc942018-09-13 09:05:15 +02002676/* callback called on any event by the connection handler.
2677 * It applies changes and returns zero, or < 0 if it wants immediate
2678 * destruction of the connection.
2679 */
2680static int h1_process(struct h1c * h1c)
2681{
2682 struct connection *conn = h1c->conn;
Christopher Fauletfeb11742018-11-29 15:12:34 +01002683 struct h1s *h1s = h1c->h1s;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002684
Christopher Faulet6b81df72019-10-01 22:08:43 +02002685 TRACE_ENTER(H1_EV_H1C_WAKE, conn);
2686
Christopher Fauletc4bfa592020-10-06 17:45:34 +02002687 /* Try to parse now the first block of a request, creating the H1 stream if necessary */
Christopher Faulet39c7b6b2021-01-21 17:44:35 +01002688 if (b_data(&h1c->ibuf) && /* Input data to be processed */
Christopher Fauletaf3b83e2021-09-16 08:16:23 +02002689 (h1c->flags & H1C_F_ST_ALIVE) && !(h1c->flags & H1C_F_ST_READY) && /* ST_IDLE/ST_EMBRYONIC or ST_ATTACH but not ST_READY */
2690 !(h1c->flags & (H1C_F_IN_SALLOC|H1C_F_ST_ERROR))) { /* No allocation failure on the stream rxbuf and no ERROR on the H1C */
Christopher Fauletc4bfa592020-10-06 17:45:34 +02002691 struct buffer *buf;
2692 size_t count;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002693
Christopher Fauletc4bfa592020-10-06 17:45:34 +02002694 /* When it happens for a backend connection, we may release it (it is probably a 408) */
2695 if (h1c->flags & H1C_F_IS_BACK)
Christopher Faulet539e0292018-11-19 10:40:09 +01002696 goto release;
Christopher Fauletc4bfa592020-10-06 17:45:34 +02002697
2698 /* First of all handle H1 to H2 upgrade (no need to create the H1 stream) */
Christopher Faulet39c7b6b2021-01-21 17:44:35 +01002699 if (!(h1c->flags & H1C_F_WAIT_NEXT_REQ) && /* First request */
Christopher Faulet143e9e52021-03-08 15:32:03 +01002700 !(h1c->px->options2 & PR_O2_NO_H2_UPGRADE) && /* H2 upgrade supported by the proxy */
2701 !(conn->mux->flags & MX_FL_NO_UPG)) { /* the current mux supports upgrades */
Christopher Fauletc4bfa592020-10-06 17:45:34 +02002702 /* Try to match H2 preface before parsing the request headers. */
2703 if (b_isteq(&h1c->ibuf, 0, b_data(&h1c->ibuf), ist(H2_CONN_PREFACE)) > 0) {
2704 h1c->flags |= H1C_F_UPG_H2C;
Christopher Faulet0f9395d2021-01-21 17:50:19 +01002705 if (h1c->flags & H1C_F_ST_ATTACHED) {
2706 /* Force the REOS here to be sure to release the CS.
2707 Here ATTACHED implies !READY, and h1s defined
2708 */
2709 BUG_ON(!h1s || (h1c->flags & H1C_F_ST_READY));
2710 h1s->flags |= H1S_F_REOS;
2711 }
Christopher Fauletc4bfa592020-10-06 17:45:34 +02002712 TRACE_STATE("release h1c to perform H2 upgrade ", H1_EV_RX_DATA|H1_EV_H1C_WAKE);
Christopher Faulet539e0292018-11-19 10:40:09 +01002713 goto release;
Christopher Fauletc4bfa592020-10-06 17:45:34 +02002714 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02002715 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02002716
Christopher Fauletc4bfa592020-10-06 17:45:34 +02002717 /* Create the H1 stream if not already there */
2718 if (!h1s) {
2719 h1s = h1c_frt_stream_new(h1c);
2720 if (!h1s) {
2721 b_reset(&h1c->ibuf);
Christopher Faulet3ced1d12020-11-27 16:44:01 +01002722 h1c->flags = (h1c->flags & ~(H1C_F_ST_IDLE|H1C_F_WAIT_NEXT_REQ)) | H1C_F_ST_ERROR;
Christopher Fauletc4bfa592020-10-06 17:45:34 +02002723 goto no_parsing;
2724 }
2725 }
2726
2727 if (h1s->sess->t_idle == -1)
2728 h1s->sess->t_idle = tv_ms_elapsed(&h1s->sess->tv_accept, &now) - h1s->sess->t_handshake;
2729
2730 /* Get the stream rxbuf */
2731 buf = h1_get_buf(h1c, &h1s->rxbuf);
2732 if (!buf) {
2733 h1c->flags |= H1C_F_IN_SALLOC;
2734 TRACE_STATE("waiting for stream rxbuf allocation", H1_EV_H1C_WAKE|H1_EV_H1C_BLK, h1c->conn);
2735 return 0;
2736 }
2737
2738 count = (buf->size - sizeof(struct htx) - global.tune.maxrewrite);
2739 h1_process_input(h1c, buf, count);
2740 h1_release_buf(h1c, &h1s->rxbuf);
2741 h1_set_idle_expiration(h1c);
2742
2743 no_parsing:
Christopher Faulet3ced1d12020-11-27 16:44:01 +01002744 if (h1c->flags & H1C_F_ST_ERROR) {
Christopher Fauletc4bfa592020-10-06 17:45:34 +02002745 h1_handle_internal_err(h1c);
Christopher Faulet3ced1d12020-11-27 16:44:01 +01002746 h1c->flags &= ~(H1C_F_ST_IDLE|H1C_F_WAIT_NEXT_REQ);
Christopher Faulet26a26432021-01-27 11:27:50 +01002747 TRACE_ERROR("internal error detected", H1_EV_H1C_WAKE|H1_EV_H1C_ERR);
Christopher Fauletc4bfa592020-10-06 17:45:34 +02002748 }
2749 else if (h1s->flags & H1S_F_PARSING_ERROR) {
2750 h1_handle_bad_req(h1c);
Christopher Faulet3ced1d12020-11-27 16:44:01 +01002751 h1c->flags = (h1c->flags & ~(H1C_F_ST_IDLE|H1C_F_WAIT_NEXT_REQ)) | H1C_F_ST_ERROR;
Christopher Faulet26a26432021-01-27 11:27:50 +01002752 TRACE_ERROR("parsing error detected", H1_EV_H1C_WAKE|H1_EV_H1C_ERR);
Christopher Fauletc4bfa592020-10-06 17:45:34 +02002753 }
Christopher Faulet2eed8002020-12-07 11:26:13 +01002754 else if (h1s->flags & H1S_F_NOT_IMPL_ERROR) {
2755 h1_handle_not_impl_err(h1c);
2756 h1c->flags = (h1c->flags & ~(H1C_F_ST_IDLE|H1C_F_WAIT_NEXT_REQ)) | H1C_F_ST_ERROR;
Christopher Faulet26a26432021-01-27 11:27:50 +01002757 TRACE_ERROR("not-implemented error detected", H1_EV_H1C_WAKE|H1_EV_H1C_ERR);
Christopher Faulet2eed8002020-12-07 11:26:13 +01002758 }
Christopher Fauletae635762020-09-21 11:47:16 +02002759 }
Christopher Fauletc4bfa592020-10-06 17:45:34 +02002760 h1_send(h1c);
2761
Christopher Fauletbde7e052021-11-15 14:51:37 +01002762 /* H1 connection must be released ASAP if:
2763 * - an error occurred on the connection or the H1C or
2764 * - a read0 was received or
2765 * - a silent shutdown was emitted and all outgoing data sent
2766 */
2767 if ((conn->flags & CO_FL_ERROR) ||
2768 conn_xprt_read0_pending(conn) ||
2769 (h1c->flags & H1C_F_ST_ERROR) ||
2770 ((h1c->flags & H1C_F_ST_SILENT_SHUT) && !b_data(&h1c->obuf))) {
Christopher Faulet39c7b6b2021-01-21 17:44:35 +01002771 if (!(h1c->flags & H1C_F_ST_READY)) {
2772 /* No conn-stream or not ready */
Christopher Fauletc4bfa592020-10-06 17:45:34 +02002773 /* shutdown for reads and error on the frontend connection: Send an error */
Christopher Fauletbde7e052021-11-15 14:51:37 +01002774 if (!(h1c->flags & (H1C_F_IS_BACK|H1C_F_ST_ERROR|H1C_F_ST_SHUTDOWN))) {
Christopher Fauletc4bfa592020-10-06 17:45:34 +02002775 if (h1_handle_bad_req(h1c))
2776 h1_send(h1c);
Christopher Faulet3ced1d12020-11-27 16:44:01 +01002777 h1c->flags = (h1c->flags & ~(H1C_F_ST_IDLE|H1C_F_WAIT_NEXT_REQ)) | H1C_F_ST_ERROR;
Christopher Fauletc4bfa592020-10-06 17:45:34 +02002778 }
2779
2780 /* Handle pending error, if any (only possible on frontend connection) */
2781 if (h1c->flags & H1C_F_ERR_PENDING) {
2782 BUG_ON(h1c->flags & H1C_F_IS_BACK);
2783 if (h1_send_error(h1c))
2784 h1_send(h1c);
2785 }
Christopher Fauletae635762020-09-21 11:47:16 +02002786
Christopher Fauletc4bfa592020-10-06 17:45:34 +02002787 /* If there is some pending outgoing data or error, just wait */
2788 if (b_data(&h1c->obuf) || (h1c->flags & H1C_F_ERR_PENDING))
2789 goto end;
Christopher Fauletfeb11742018-11-29 15:12:34 +01002790
Christopher Fauletc4bfa592020-10-06 17:45:34 +02002791 /* Otherwise we can release the H1 connection */
2792 goto release;
2793 }
2794 else {
2795 /* Here there is still a H1 stream with a conn-stream.
2796 * Report the connection state at the stream level
2797 */
2798 if (conn_xprt_read0_pending(conn)) {
2799 h1s->flags |= H1S_F_REOS;
2800 TRACE_STATE("read0 on connection", H1_EV_H1C_RECV, conn, h1s);
2801 }
Christopher Faulet3ced1d12020-11-27 16:44:01 +01002802 if ((h1c->flags & H1C_F_ST_ERROR) || (conn->flags & CO_FL_ERROR))
Christopher Fauletc4bfa592020-10-06 17:45:34 +02002803 h1s->cs->flags |= CS_FL_ERROR;
2804 TRACE_POINT(H1_EV_STRM_WAKE, h1c->conn, h1s);
Christopher Fauletad4daf62021-01-21 17:49:01 +01002805 h1_alert(h1s);
Christopher Fauletc4bfa592020-10-06 17:45:34 +02002806 }
Christopher Faulet6b81df72019-10-01 22:08:43 +02002807 }
Willy Tarreauc493c9c2019-06-03 14:18:22 +02002808
Christopher Fauletc4bfa592020-10-06 17:45:34 +02002809 if (!b_data(&h1c->ibuf))
2810 h1_release_buf(h1c, &h1c->ibuf);
2811
Amaury Denoyelleefc6e952021-05-05 11:11:11 +02002812 /* Check if a soft-stop is in progress.
2813 * Release idling front connection if this is the case.
2814 */
2815 if (!(h1c->flags & H1C_F_IS_BACK)) {
2816 if (unlikely(h1c->px->disabled)) {
2817 if (h1c->flags & H1C_F_WAIT_NEXT_REQ)
2818 goto release;
2819 }
2820 }
Christopher Fauletc4bfa592020-10-06 17:45:34 +02002821
2822 if ((h1c->flags & H1C_F_WANT_SPLICE) && !h1s_data_pending(h1s)) {
2823 TRACE_DEVEL("xprt rcv_buf blocked (want_splice), notify h1s for recv", H1_EV_H1C_RECV, h1c->conn);
2824 h1_wake_stream_for_recv(h1s);
Olivier Houchard75159a92018-12-03 18:46:09 +01002825 }
Christopher Fauletc4bfa592020-10-06 17:45:34 +02002826
Christopher Faulet47365272018-10-31 17:40:50 +01002827 end:
Christopher Faulet7a145d62020-08-05 11:31:16 +02002828 h1_refresh_timeout(h1c);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002829 TRACE_LEAVE(H1_EV_H1C_WAKE, conn);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002830 return 0;
Christopher Faulet539e0292018-11-19 10:40:09 +01002831
2832 release:
Christopher Faulet0f9395d2021-01-21 17:50:19 +01002833 if (h1c->flags & H1C_F_ST_ATTACHED) {
Ilya Shipitsinacf84592021-02-06 22:29:08 +05002834 /* Don't release the H1 connection right now, we must destroy the
Christopher Faulet0f9395d2021-01-21 17:50:19 +01002835 * attached CS first. Here, the H1C must not be READY */
2836 BUG_ON(!h1s || h1c->flags & H1C_F_ST_READY);
2837
2838 if (conn_xprt_read0_pending(conn) || (h1s->flags & H1S_F_REOS))
2839 h1s->cs->flags |= CS_FL_EOS;
2840 if ((h1c->flags & H1C_F_ST_ERROR) || (conn->flags & CO_FL_ERROR))
2841 h1s->cs->flags |= CS_FL_ERROR;
2842 h1_alert(h1s);
2843 TRACE_DEVEL("waiting to release the CS before releasing the connection", H1_EV_H1C_WAKE);
2844 }
2845 else {
2846 h1_release(h1c);
2847 TRACE_DEVEL("leaving after releasing the connection", H1_EV_H1C_WAKE);
2848 }
Christopher Faulet539e0292018-11-19 10:40:09 +01002849 return -1;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002850}
2851
Willy Tarreaue388f2f2021-03-02 16:51:09 +01002852struct task *h1_io_cb(struct task *t, void *ctx, unsigned int state)
Christopher Faulet51dbc942018-09-13 09:05:15 +02002853{
Olivier Houchardf12ca9f2020-02-20 16:00:18 +01002854 struct connection *conn;
2855 struct tasklet *tl = (struct tasklet *)t;
2856 int conn_in_list;
Willy Tarreaue388f2f2021-03-02 16:51:09 +01002857 struct h1c *h1c = ctx;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002858 int ret = 0;
2859
Willy Tarreaue388f2f2021-03-02 16:51:09 +01002860 if (state & TASK_F_USR1) {
2861 /* the tasklet was idling on an idle connection, it might have
2862 * been stolen, let's be careful!
2863 */
2864 HA_SPIN_LOCK(IDLE_CONNS_LOCK, &idle_conns[tid].idle_conns_lock);
2865 if (tl->context == NULL) {
2866 /* The connection has been taken over by another thread,
2867 * we're no longer responsible for it, so just free the
2868 * tasklet, and do nothing.
2869 */
2870 HA_SPIN_UNLOCK(IDLE_CONNS_LOCK, &idle_conns[tid].idle_conns_lock);
2871 tasklet_free(tl);
2872 return NULL;
2873 }
2874 conn = h1c->conn;
2875 TRACE_POINT(H1_EV_H1C_WAKE, conn);
Olivier Houchardf12ca9f2020-02-20 16:00:18 +01002876
Willy Tarreaue388f2f2021-03-02 16:51:09 +01002877 /* Remove the connection from the list, to be sure nobody attempts
2878 * to use it while we handle the I/O events
Olivier Houchardf12ca9f2020-02-20 16:00:18 +01002879 */
Willy Tarreaue388f2f2021-03-02 16:51:09 +01002880 conn_in_list = conn->flags & CO_FL_LIST_MASK;
2881 if (conn_in_list)
2882 conn_delete_from_tree(&conn->hash_node->node);
2883
Amaury Denoyelle5c7086f2021-01-11 09:21:52 +01002884 HA_SPIN_UNLOCK(IDLE_CONNS_LOCK, &idle_conns[tid].idle_conns_lock);
Willy Tarreaue388f2f2021-03-02 16:51:09 +01002885 } else {
2886 /* we're certain the connection was not in an idle list */
2887 conn = h1c->conn;
2888 TRACE_ENTER(H1_EV_H1C_WAKE, conn);
2889 conn_in_list = 0;
Olivier Houchardf12ca9f2020-02-20 16:00:18 +01002890 }
Christopher Faulet6b81df72019-10-01 22:08:43 +02002891
Willy Tarreau4f6516d2018-12-19 13:59:17 +01002892 if (!(h1c->wait_event.events & SUB_RETRY_SEND))
Christopher Faulet51dbc942018-09-13 09:05:15 +02002893 ret = h1_send(h1c);
Willy Tarreau4f6516d2018-12-19 13:59:17 +01002894 if (!(h1c->wait_event.events & SUB_RETRY_RECV))
Christopher Faulet51dbc942018-09-13 09:05:15 +02002895 ret |= h1_recv(h1c);
Christopher Fauletc4bfa592020-10-06 17:45:34 +02002896 if (ret || b_data(&h1c->ibuf))
Olivier Houchardf12ca9f2020-02-20 16:00:18 +01002897 ret = h1_process(h1c);
Willy Tarreau74163142021-03-13 11:30:19 +01002898
Olivier Houchardf12ca9f2020-02-20 16:00:18 +01002899 /* If we were in an idle list, we want to add it back into it,
2900 * unless h1_process() returned -1, which mean it has destroyed
2901 * the connection (testing !ret is enough, if h1_process() wasn't
2902 * called then ret will be 0 anyway.
2903 */
Willy Tarreau74163142021-03-13 11:30:19 +01002904 if (ret < 0)
2905 t = NULL;
2906
Olivier Houchardf12ca9f2020-02-20 16:00:18 +01002907 if (!ret && conn_in_list) {
2908 struct server *srv = objt_server(conn->target);
2909
Amaury Denoyelle5c7086f2021-01-11 09:21:52 +01002910 HA_SPIN_LOCK(IDLE_CONNS_LOCK, &idle_conns[tid].idle_conns_lock);
Olivier Houchardf12ca9f2020-02-20 16:00:18 +01002911 if (conn_in_list == CO_FL_SAFE_LIST)
Willy Tarreau430bf4a2021-03-04 09:45:32 +01002912 ebmb_insert(&srv->per_thr[tid].safe_conns, &conn->hash_node->node, sizeof(conn->hash_node->hash));
Olivier Houchardf12ca9f2020-02-20 16:00:18 +01002913 else
Willy Tarreau430bf4a2021-03-04 09:45:32 +01002914 ebmb_insert(&srv->per_thr[tid].idle_conns, &conn->hash_node->node, sizeof(conn->hash_node->hash));
Amaury Denoyelle5c7086f2021-01-11 09:21:52 +01002915 HA_SPIN_UNLOCK(IDLE_CONNS_LOCK, &idle_conns[tid].idle_conns_lock);
Olivier Houchardf12ca9f2020-02-20 16:00:18 +01002916 }
Willy Tarreau74163142021-03-13 11:30:19 +01002917 return t;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002918}
2919
Christopher Faulet51dbc942018-09-13 09:05:15 +02002920static int h1_wake(struct connection *conn)
2921{
Willy Tarreau3d2ee552018-12-19 14:12:10 +01002922 struct h1c *h1c = conn->ctx;
Olivier Houchard75159a92018-12-03 18:46:09 +01002923 int ret;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002924
Christopher Faulet6b81df72019-10-01 22:08:43 +02002925 TRACE_POINT(H1_EV_H1C_WAKE, conn);
2926
Christopher Faulet539e0292018-11-19 10:40:09 +01002927 h1_send(h1c);
Olivier Houchard75159a92018-12-03 18:46:09 +01002928 ret = h1_process(h1c);
2929 if (ret == 0) {
2930 struct h1s *h1s = h1c->h1s;
2931
Christopher Fauletad4daf62021-01-21 17:49:01 +01002932 if (h1c->flags & H1C_F_ST_ATTACHED)
2933 h1_alert(h1s);
Olivier Houchard75159a92018-12-03 18:46:09 +01002934 }
2935 return ret;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002936}
2937
Christopher Fauletb8093cf2019-01-03 16:27:28 +01002938/* Connection timeout management. The principle is that if there's no receipt
2939 * nor sending for a certain amount of time, the connection is closed.
2940 */
Willy Tarreau144f84a2021-03-02 16:09:26 +01002941struct task *h1_timeout_task(struct task *t, void *context, unsigned int state)
Christopher Fauletb8093cf2019-01-03 16:27:28 +01002942{
2943 struct h1c *h1c = context;
2944 int expired = tick_is_expired(t->expire, now_ms);
2945
Christopher Fauletc1c66a42020-09-29 15:30:15 +02002946 TRACE_ENTER(H1_EV_H1C_WAKE, h1c ? h1c->conn : NULL);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002947
Willy Tarreau68d4ee92020-06-30 11:19:23 +02002948 if (h1c) {
Christopher Fauletc1c66a42020-09-29 15:30:15 +02002949 /* Make sure nobody stole the connection from us */
Amaury Denoyelle5c7086f2021-01-11 09:21:52 +01002950 HA_SPIN_LOCK(IDLE_CONNS_LOCK, &idle_conns[tid].idle_conns_lock);
Christopher Fauletc1c66a42020-09-29 15:30:15 +02002951
2952 /* Somebody already stole the connection from us, so we should not
2953 * free it, we just have to free the task.
2954 */
2955 if (!t->context) {
2956 h1c = NULL;
Amaury Denoyelle5c7086f2021-01-11 09:21:52 +01002957 HA_SPIN_UNLOCK(IDLE_CONNS_LOCK, &idle_conns[tid].idle_conns_lock);
Christopher Fauletc1c66a42020-09-29 15:30:15 +02002958 goto do_leave;
2959 }
2960
Willy Tarreau68d4ee92020-06-30 11:19:23 +02002961 if (!expired) {
Amaury Denoyelle5c7086f2021-01-11 09:21:52 +01002962 HA_SPIN_UNLOCK(IDLE_CONNS_LOCK, &idle_conns[tid].idle_conns_lock);
Christopher Fauletc1c66a42020-09-29 15:30:15 +02002963 TRACE_DEVEL("leaving (not expired)", H1_EV_H1C_WAKE, h1c->conn, h1c->h1s);
Willy Tarreau68d4ee92020-06-30 11:19:23 +02002964 return t;
2965 }
Christopher Fauletb8093cf2019-01-03 16:27:28 +01002966
Christopher Faulet39c7b6b2021-01-21 17:44:35 +01002967 /* If a conn-stream is still attached and ready to the mux, wait for the
Christopher Fauletc1c66a42020-09-29 15:30:15 +02002968 * stream's timeout
Willy Tarreau68d4ee92020-06-30 11:19:23 +02002969 */
Christopher Faulet39c7b6b2021-01-21 17:44:35 +01002970 if (h1c->flags & H1C_F_ST_READY) {
Amaury Denoyelle5c7086f2021-01-11 09:21:52 +01002971 HA_SPIN_UNLOCK(IDLE_CONNS_LOCK, &idle_conns[tid].idle_conns_lock);
Christopher Fauletc1c66a42020-09-29 15:30:15 +02002972 t->expire = TICK_ETERNITY;
2973 TRACE_DEVEL("leaving (CS still attached)", H1_EV_H1C_WAKE, h1c->conn, h1c->h1s);
2974 return t;
2975 }
Olivier Houchardf12ca9f2020-02-20 16:00:18 +01002976
Christopher Fauletc4bfa592020-10-06 17:45:34 +02002977 /* Try to send an error to the client */
Christopher Faulet3ced1d12020-11-27 16:44:01 +01002978 if (!(h1c->flags & (H1C_F_IS_BACK|H1C_F_ST_ERROR|H1C_F_ERR_PENDING|H1C_F_ST_SHUTDOWN))) {
2979 h1c->flags = (h1c->flags & ~H1C_F_ST_IDLE) | H1C_F_ST_ERROR;
Christopher Faulet26a26432021-01-27 11:27:50 +01002980 TRACE_DEVEL("timeout error detected", H1_EV_H1C_WAKE|H1_EV_H1C_ERR, h1c->conn, h1c->h1s);
Christopher Fauletc4bfa592020-10-06 17:45:34 +02002981 if (h1_handle_req_tout(h1c))
2982 h1_send(h1c);
2983 if (b_data(&h1c->obuf) || (h1c->flags & H1C_F_ERR_PENDING)) {
2984 h1_refresh_timeout(h1c);
Amaury Denoyelle5c7086f2021-01-11 09:21:52 +01002985 HA_SPIN_UNLOCK(IDLE_CONNS_LOCK, &idle_conns[tid].idle_conns_lock);
Christopher Fauletc4bfa592020-10-06 17:45:34 +02002986 return t;
2987 }
2988 }
2989
Christopher Faulet0f9395d2021-01-21 17:50:19 +01002990 if (h1c->flags & H1C_F_ST_ATTACHED) {
Ilya Shipitsinacf84592021-02-06 22:29:08 +05002991 /* Don't release the H1 connection right now, we must destroy the
Christopher Faulet0f9395d2021-01-21 17:50:19 +01002992 * attached CS first. Here, the H1C must not be READY */
2993 h1c->h1s->cs->flags |= (CS_FL_EOS|CS_FL_ERROR);
2994 h1_alert(h1c->h1s);
2995 h1_refresh_timeout(h1c);
Amaury Denoyelle5c7086f2021-01-11 09:21:52 +01002996 HA_SPIN_UNLOCK(OTHER_LOCK, &idle_conns[tid].idle_conns_lock);
Christopher Faulet0f9395d2021-01-21 17:50:19 +01002997 TRACE_DEVEL("waiting to release the CS before releasing the connection", H1_EV_H1C_WAKE);
2998 return t;
2999 }
3000
Christopher Fauletc1c66a42020-09-29 15:30:15 +02003001 /* We're about to destroy the connection, so make sure nobody attempts
3002 * to steal it from us.
Willy Tarreau68d4ee92020-06-30 11:19:23 +02003003 */
Christopher Fauletc1c66a42020-09-29 15:30:15 +02003004 if (h1c->conn->flags & CO_FL_LIST_MASK)
Amaury Denoyelle8990b012021-02-19 15:29:16 +01003005 conn_delete_from_tree(&h1c->conn->hash_node->node);
Olivier Houchardf12ca9f2020-02-20 16:00:18 +01003006
Amaury Denoyelle5c7086f2021-01-11 09:21:52 +01003007 HA_SPIN_UNLOCK(IDLE_CONNS_LOCK, &idle_conns[tid].idle_conns_lock);
Willy Tarreau68d4ee92020-06-30 11:19:23 +02003008 }
Olivier Houchardf12ca9f2020-02-20 16:00:18 +01003009
Christopher Fauletc1c66a42020-09-29 15:30:15 +02003010 do_leave:
Olivier Houchard3f795f72019-04-17 22:51:06 +02003011 task_destroy(t);
Christopher Fauletb8093cf2019-01-03 16:27:28 +01003012
3013 if (!h1c) {
3014 /* resources were already deleted */
Christopher Faulet6b81df72019-10-01 22:08:43 +02003015 TRACE_DEVEL("leaving (not more h1c)", H1_EV_H1C_WAKE);
Christopher Fauletb8093cf2019-01-03 16:27:28 +01003016 return NULL;
3017 }
3018
3019 h1c->task = NULL;
Christopher Fauletc1c66a42020-09-29 15:30:15 +02003020 h1_release(h1c);
3021 TRACE_LEAVE(H1_EV_H1C_WAKE);
Christopher Fauletb8093cf2019-01-03 16:27:28 +01003022 return NULL;
3023}
3024
Christopher Faulet51dbc942018-09-13 09:05:15 +02003025/*******************************************/
3026/* functions below are used by the streams */
3027/*******************************************/
Christopher Faulet73c12072019-04-08 11:23:22 +02003028
Christopher Faulet51dbc942018-09-13 09:05:15 +02003029/*
3030 * Attach a new stream to a connection
3031 * (Used for outgoing connections)
3032 */
Olivier Houchardf502aca2018-12-14 19:42:40 +01003033static struct conn_stream *h1_attach(struct connection *conn, struct session *sess)
Christopher Faulet51dbc942018-09-13 09:05:15 +02003034{
Willy Tarreau3d2ee552018-12-19 14:12:10 +01003035 struct h1c *h1c = conn->ctx;
Christopher Faulet51dbc942018-09-13 09:05:15 +02003036 struct conn_stream *cs = NULL;
3037 struct h1s *h1s;
3038
Christopher Faulet6b81df72019-10-01 22:08:43 +02003039 TRACE_ENTER(H1_EV_STRM_NEW, conn);
Christopher Faulet3ced1d12020-11-27 16:44:01 +01003040 if (h1c->flags & H1C_F_ST_ERROR) {
Christopher Faulet26a26432021-01-27 11:27:50 +01003041 TRACE_ERROR("h1c on error", H1_EV_STRM_NEW|H1_EV_STRM_END|H1_EV_STRM_ERR, conn);
3042 goto err;
Christopher Faulet6b81df72019-10-01 22:08:43 +02003043 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02003044
Christopher Faulet236c93b2020-07-02 09:19:54 +02003045 cs = cs_new(h1c->conn, h1c->conn->target);
Christopher Faulet6b81df72019-10-01 22:08:43 +02003046 if (!cs) {
Christopher Faulet26a26432021-01-27 11:27:50 +01003047 TRACE_ERROR("CS allocation failure", H1_EV_STRM_NEW|H1_EV_STRM_END|H1_EV_STRM_ERR, conn);
3048 goto err;
Christopher Faulet6b81df72019-10-01 22:08:43 +02003049 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02003050
Christopher Faulet2f0ec662020-09-24 10:30:15 +02003051 h1s = h1c_bck_stream_new(h1c, cs, sess);
Christopher Faulet6b81df72019-10-01 22:08:43 +02003052 if (h1s == NULL) {
Christopher Faulet26a26432021-01-27 11:27:50 +01003053 TRACE_ERROR("h1s creation failure", H1_EV_STRM_NEW|H1_EV_STRM_END|H1_EV_STRM_ERR, conn);
3054 goto err;
Christopher Faulet6b81df72019-10-01 22:08:43 +02003055 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02003056
Willy Tarreaue388f2f2021-03-02 16:51:09 +01003057 /* the connection is not idle anymore, let's mark this */
3058 HA_ATOMIC_AND(&h1c->wait_event.tasklet->state, ~TASK_F_USR1);
Willy Tarreau4f8cd432021-03-02 17:27:58 +01003059 xprt_set_used(conn, conn->xprt, conn->xprt_ctx);
Willy Tarreaue388f2f2021-03-02 16:51:09 +01003060
Christopher Faulet6b81df72019-10-01 22:08:43 +02003061 TRACE_LEAVE(H1_EV_STRM_NEW, conn, h1s);
Christopher Faulet51dbc942018-09-13 09:05:15 +02003062 return cs;
Christopher Faulet26a26432021-01-27 11:27:50 +01003063 err:
Christopher Faulet51dbc942018-09-13 09:05:15 +02003064 cs_free(cs);
Christopher Faulet26a26432021-01-27 11:27:50 +01003065 TRACE_DEVEL("leaving on error", H1_EV_STRM_NEW|H1_EV_STRM_END|H1_EV_STRM_ERR, conn);
Christopher Faulet51dbc942018-09-13 09:05:15 +02003066 return NULL;
3067}
3068
3069/* Retrieves a valid conn_stream from this connection, or returns NULL. For
3070 * this mux, it's easy as we can only store a single conn_stream.
3071 */
3072static const struct conn_stream *h1_get_first_cs(const struct connection *conn)
3073{
Willy Tarreau3d2ee552018-12-19 14:12:10 +01003074 struct h1c *h1c = conn->ctx;
Christopher Faulet51dbc942018-09-13 09:05:15 +02003075 struct h1s *h1s = h1c->h1s;
3076
3077 if (h1s)
3078 return h1s->cs;
3079
3080 return NULL;
3081}
3082
Christopher Faulet73c12072019-04-08 11:23:22 +02003083static void h1_destroy(void *ctx)
Christopher Faulet51dbc942018-09-13 09:05:15 +02003084{
Christopher Faulet73c12072019-04-08 11:23:22 +02003085 struct h1c *h1c = ctx;
Christopher Faulet51dbc942018-09-13 09:05:15 +02003086
Christopher Faulet6b81df72019-10-01 22:08:43 +02003087 TRACE_POINT(H1_EV_H1C_END, h1c->conn);
Christopher Faulet39a96ee2019-04-08 10:52:21 +02003088 if (!h1c->h1s || !h1c->conn || h1c->conn->ctx != h1c)
Christopher Faulet73c12072019-04-08 11:23:22 +02003089 h1_release(h1c);
Christopher Faulet51dbc942018-09-13 09:05:15 +02003090}
3091
3092/*
3093 * Detach the stream from the connection and possibly release the connection.
3094 */
3095static void h1_detach(struct conn_stream *cs)
3096{
3097 struct h1s *h1s = cs->ctx;
3098 struct h1c *h1c;
Olivier Houchardf502aca2018-12-14 19:42:40 +01003099 struct session *sess;
Olivier Houchard8a786902018-12-15 16:05:40 +01003100 int is_not_first;
Christopher Faulet51dbc942018-09-13 09:05:15 +02003101
Christopher Faulet6b81df72019-10-01 22:08:43 +02003102 TRACE_ENTER(H1_EV_STRM_END, h1s ? h1s->h1c->conn : NULL, h1s);
3103
Christopher Faulet51dbc942018-09-13 09:05:15 +02003104 cs->ctx = NULL;
Christopher Faulet6b81df72019-10-01 22:08:43 +02003105 if (!h1s) {
3106 TRACE_LEAVE(H1_EV_STRM_END);
Christopher Faulet51dbc942018-09-13 09:05:15 +02003107 return;
Christopher Faulet6b81df72019-10-01 22:08:43 +02003108 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02003109
Olivier Houchardf502aca2018-12-14 19:42:40 +01003110 sess = h1s->sess;
Christopher Faulet51dbc942018-09-13 09:05:15 +02003111 h1c = h1s->h1c;
3112 h1s->cs = NULL;
3113
Christopher Faulet42849b02020-10-05 11:35:17 +02003114 sess->accept_date = date;
3115 sess->tv_accept = now;
3116 sess->t_handshake = 0;
3117 sess->t_idle = -1;
3118
Olivier Houchard8a786902018-12-15 16:05:40 +01003119 is_not_first = h1s->flags & H1S_F_NOT_FIRST;
3120 h1s_destroy(h1s);
3121
Christopher Faulet3ced1d12020-11-27 16:44:01 +01003122 if ((h1c->flags & (H1C_F_IS_BACK|H1C_F_ST_IDLE)) == (H1C_F_IS_BACK|H1C_F_ST_IDLE)) {
Christopher Fauletf1204b82019-07-19 14:51:06 +02003123 /* If there are any excess server data in the input buffer,
3124 * release it and close the connection ASAP (some data may
3125 * remain in the output buffer). This happens if a server sends
3126 * invalid responses. So in such case, we don't want to reuse
3127 * the connection
Christopher Faulet03627242019-07-19 11:34:08 +02003128 */
Christopher Fauletf1204b82019-07-19 14:51:06 +02003129 if (b_data(&h1c->ibuf)) {
3130 h1_release_buf(h1c, &h1c->ibuf);
Christopher Faulet3ced1d12020-11-27 16:44:01 +01003131 h1c->flags = (h1c->flags & ~H1C_F_ST_IDLE) | H1C_F_ST_SHUTDOWN;
Christopher Faulet6b81df72019-10-01 22:08:43 +02003132 TRACE_DEVEL("remaining data on detach, kill connection", H1_EV_STRM_END|H1_EV_H1C_END);
Christopher Fauletf1204b82019-07-19 14:51:06 +02003133 goto release;
3134 }
Christopher Faulet03627242019-07-19 11:34:08 +02003135
Christopher Faulet08016ab2020-07-01 16:10:06 +02003136 if (h1c->conn->flags & CO_FL_PRIVATE) {
3137 /* Add the connection in the session server list, if not already done */
Olivier Houchard351411f2018-12-27 17:20:54 +01003138 if (!session_add_conn(sess, h1c->conn, h1c->conn->target)) {
3139 h1c->conn->owner = NULL;
Olivier Houchard2444aa52020-01-20 13:56:01 +01003140 h1c->conn->mux->destroy(h1c);
Christopher Faulet6b81df72019-10-01 22:08:43 +02003141 goto end;
Olivier Houchard351411f2018-12-27 17:20:54 +01003142 }
Christopher Faulet08016ab2020-07-01 16:10:06 +02003143 /* Always idle at this step */
Olivier Houchard2444aa52020-01-20 13:56:01 +01003144 if (session_check_idle_conn(sess, h1c->conn)) {
Olivier Houcharda4d4fdf2018-12-14 19:27:06 +01003145 /* The connection got destroyed, let's leave */
Christopher Faulet6b81df72019-10-01 22:08:43 +02003146 TRACE_DEVEL("outgoing connection killed", H1_EV_STRM_END|H1_EV_H1C_END);
3147 goto end;
3148 }
Olivier Houcharda4d4fdf2018-12-14 19:27:06 +01003149 }
Christopher Faulet08016ab2020-07-01 16:10:06 +02003150 else {
Olivier Houchard2444aa52020-01-20 13:56:01 +01003151 if (h1c->conn->owner == sess)
3152 h1c->conn->owner = NULL;
Willy Tarreaue388f2f2021-03-02 16:51:09 +01003153
3154 /* mark that the tasklet may lose its context to another thread and
3155 * that the handler needs to check it under the idle conns lock.
3156 */
3157 HA_ATOMIC_OR(&h1c->wait_event.tasklet->state, TASK_F_USR1);
Olivier Houchard3c49c1b2020-03-22 19:56:03 +01003158 h1c->conn->xprt->subscribe(h1c->conn, h1c->conn->xprt_ctx, SUB_RETRY_RECV, &h1c->wait_event);
Willy Tarreau4f8cd432021-03-02 17:27:58 +01003159 xprt_set_idle(h1c->conn, h1c->conn->xprt, h1c->conn->xprt_ctx);
3160
Olivier Houcharddc2f2752020-02-13 19:12:07 +01003161 if (!srv_add_to_idle_list(objt_server(h1c->conn->target), h1c->conn, is_not_first)) {
Olivier Houchard2444aa52020-01-20 13:56:01 +01003162 /* The server doesn't want it, let's kill the connection right away */
3163 h1c->conn->mux->destroy(h1c);
3164 TRACE_DEVEL("outgoing connection killed", H1_EV_STRM_END|H1_EV_H1C_END);
3165 goto end;
Christopher Faulet9400a392018-11-23 23:10:39 +01003166 }
Olivier Houchard199d4fa2020-03-22 23:25:51 +01003167 /* At this point, the connection has been added to the
3168 * server idle list, so another thread may already have
3169 * hijacked it, so we can't do anything with it.
3170 */
Olivier Houchard2444aa52020-01-20 13:56:01 +01003171 return;
Christopher Faulet9400a392018-11-23 23:10:39 +01003172 }
3173 }
3174
Christopher Fauletf1204b82019-07-19 14:51:06 +02003175 release:
Christopher Faulet3ac0f432019-06-28 17:41:42 +02003176 /* We don't want to close right now unless the connection is in error or shut down for writes */
Christopher Faulet3ced1d12020-11-27 16:44:01 +01003177 if ((h1c->flags & H1C_F_ST_ERROR) ||
Christopher Faulet37243bc2019-07-11 15:40:25 +02003178 (h1c->conn->flags & (CO_FL_ERROR|CO_FL_SOCK_WR_SH)) ||
Christopher Faulet3ced1d12020-11-27 16:44:01 +01003179 ((h1c->flags & H1C_F_ST_SHUTDOWN) && !b_data(&h1c->obuf)) ||
Christopher Faulet6b81df72019-10-01 22:08:43 +02003180 !h1c->conn->owner) {
3181 TRACE_DEVEL("killing dead connection", H1_EV_STRM_END, h1c->conn);
Christopher Faulet73c12072019-04-08 11:23:22 +02003182 h1_release(h1c);
Christopher Faulet6b81df72019-10-01 22:08:43 +02003183 }
Christopher Fauletb8093cf2019-01-03 16:27:28 +01003184 else {
Christopher Faulet3ced1d12020-11-27 16:44:01 +01003185 if (h1c->flags & H1C_F_ST_IDLE) {
Christopher Faulet5d3c93c2020-10-05 17:14:28 +02003186 /* If we have a new request, process it immediately or
3187 * subscribe for reads waiting for new data
3188 */
Christopher Faulet0c366a82020-12-18 15:13:47 +01003189 if (unlikely(b_data(&h1c->ibuf))) {
3190 if (h1_process(h1c) == -1)
3191 goto end;
3192 }
Christopher Faulet5d3c93c2020-10-05 17:14:28 +02003193 else
3194 h1c->conn->xprt->subscribe(h1c->conn, h1c->conn->xprt_ctx, SUB_RETRY_RECV, &h1c->wait_event);
3195 }
Christopher Fauletc4bfa592020-10-06 17:45:34 +02003196 h1_set_idle_expiration(h1c);
Christopher Faulet7a145d62020-08-05 11:31:16 +02003197 h1_refresh_timeout(h1c);
Christopher Fauletb8093cf2019-01-03 16:27:28 +01003198 }
Christopher Faulet6b81df72019-10-01 22:08:43 +02003199 end:
3200 TRACE_LEAVE(H1_EV_STRM_END);
Christopher Faulet51dbc942018-09-13 09:05:15 +02003201}
3202
3203
3204static void h1_shutr(struct conn_stream *cs, enum cs_shr_mode mode)
3205{
3206 struct h1s *h1s = cs->ctx;
Christopher Faulet7f366362019-04-08 10:51:20 +02003207 struct h1c *h1c;
Christopher Faulet51dbc942018-09-13 09:05:15 +02003208
3209 if (!h1s)
3210 return;
Christopher Faulet7f366362019-04-08 10:51:20 +02003211 h1c = h1s->h1c;
Christopher Faulet51dbc942018-09-13 09:05:15 +02003212
Christopher Fauletea62e182021-11-10 10:30:15 +01003213 TRACE_ENTER(H1_EV_STRM_SHUT, h1c->conn, h1s, 0, (size_t[]){mode});
Christopher Faulet6b81df72019-10-01 22:08:43 +02003214
Christopher Faulet3c82d8b2020-10-05 17:11:16 +02003215 if (cs->flags & CS_FL_SHR)
3216 goto end;
Christopher Faulet6b81df72019-10-01 22:08:43 +02003217 if (cs->flags & CS_FL_KILL_CONN) {
3218 TRACE_STATE("stream wants to kill the connection", H1_EV_STRM_SHUT, h1c->conn, h1s);
3219 goto do_shutr;
3220 }
3221 if (h1c->conn->flags & (CO_FL_ERROR | CO_FL_SOCK_RD_SH | CO_FL_SOCK_WR_SH)) {
3222 TRACE_STATE("shutdown on connection (error|rd_sh|wr_sh)", H1_EV_STRM_SHUT, h1c->conn, h1s);
Christopher Faulet7f366362019-04-08 10:51:20 +02003223 goto do_shutr;
Christopher Faulet6b81df72019-10-01 22:08:43 +02003224 }
Christopher Faulet7f366362019-04-08 10:51:20 +02003225
Christopher Faulet39c7b6b2021-01-21 17:44:35 +01003226 if (!(h1c->flags & (H1C_F_ST_READY|H1C_F_ST_ERROR))) {
3227 /* Here attached is implicit because there is CS */
3228 TRACE_STATE("keep connection alive (ALIVE but not READY nor ERROR)", H1_EV_STRM_SHUT, h1c->conn, h1s);
3229 goto end;
3230 }
Christopher Fauletc4bfa592020-10-06 17:45:34 +02003231 if (h1s->flags & H1S_F_WANT_KAL) {
3232 TRACE_STATE("keep connection alive (want_kal)", H1_EV_STRM_SHUT, h1c->conn, h1s);
Christopher Faulet6b81df72019-10-01 22:08:43 +02003233 goto end;
3234 }
Christopher Fauletf2824e62018-10-01 12:12:37 +02003235
Christopher Faulet7f366362019-04-08 10:51:20 +02003236 do_shutr:
Christopher Faulet51dbc942018-09-13 09:05:15 +02003237 /* NOTE: Be sure to handle abort (cf. h2_shutr) */
3238 if (cs->flags & CS_FL_SHR)
Christopher Faulet6b81df72019-10-01 22:08:43 +02003239 goto end;
Christopher Faulet51dbc942018-09-13 09:05:15 +02003240 if (conn_xprt_ready(cs->conn) && cs->conn->xprt->shutr)
Olivier Houcharde179d0e2019-03-21 18:27:17 +01003241 cs->conn->xprt->shutr(cs->conn, cs->conn->xprt_ctx,
Christopher Faulet6b81df72019-10-01 22:08:43 +02003242 (mode == CS_SHR_DRAIN));
Christopher Faulet6b81df72019-10-01 22:08:43 +02003243 end:
3244 TRACE_LEAVE(H1_EV_STRM_SHUT, h1c->conn, h1s);
Christopher Faulet51dbc942018-09-13 09:05:15 +02003245}
3246
3247static void h1_shutw(struct conn_stream *cs, enum cs_shw_mode mode)
3248{
3249 struct h1s *h1s = cs->ctx;
3250 struct h1c *h1c;
3251
3252 if (!h1s)
3253 return;
3254 h1c = h1s->h1c;
3255
Christopher Fauletea62e182021-11-10 10:30:15 +01003256 TRACE_ENTER(H1_EV_STRM_SHUT, h1c->conn, h1s, 0, (size_t[]){mode});
Christopher Faulet6b81df72019-10-01 22:08:43 +02003257
Christopher Faulet3c82d8b2020-10-05 17:11:16 +02003258 if (cs->flags & CS_FL_SHW)
3259 goto end;
Christopher Faulet6b81df72019-10-01 22:08:43 +02003260 if (cs->flags & CS_FL_KILL_CONN) {
3261 TRACE_STATE("stream wants to kill the connection", H1_EV_STRM_SHUT, h1c->conn, h1s);
Christopher Faulet7f366362019-04-08 10:51:20 +02003262 goto do_shutw;
Christopher Faulet6b81df72019-10-01 22:08:43 +02003263 }
3264 if (h1c->conn->flags & (CO_FL_ERROR | CO_FL_SOCK_RD_SH | CO_FL_SOCK_WR_SH)) {
3265 TRACE_STATE("shutdown on connection (error|rd_sh|wr_sh)", H1_EV_STRM_SHUT, h1c->conn, h1s);
3266 goto do_shutw;
3267 }
Olivier Houchardd2e88c72018-12-19 15:55:23 +01003268
Christopher Faulet39c7b6b2021-01-21 17:44:35 +01003269 if (!(h1c->flags & (H1C_F_ST_READY|H1C_F_ST_ERROR))) {
3270 /* Here attached is implicit because there is CS */
3271 TRACE_STATE("keep connection alive (ALIVE but not READY nor ERROR)", H1_EV_STRM_SHUT, h1c->conn, h1s);
3272 goto end;
3273 }
Christopher Fauletc4bfa592020-10-06 17:45:34 +02003274 if (((h1s->flags & H1S_F_WANT_KAL) && h1s->req.state == H1_MSG_DONE && h1s->res.state == H1_MSG_DONE)) {
3275 TRACE_STATE("keep connection alive (want_kal)", H1_EV_STRM_SHUT, h1c->conn, h1s);
Christopher Faulet6b81df72019-10-01 22:08:43 +02003276 goto end;
3277 }
Christopher Fauletf2824e62018-10-01 12:12:37 +02003278
Christopher Faulet7f366362019-04-08 10:51:20 +02003279 do_shutw:
Christopher Faulet3ced1d12020-11-27 16:44:01 +01003280 h1c->flags |= H1C_F_ST_SHUTDOWN;
Christopher Fauletdb451fb2021-10-27 15:36:38 +02003281 if (mode != CS_SHW_NORMAL)
3282 h1c->flags |= H1C_F_ST_SILENT_SHUT;
3283
Christopher Faulet3c82d8b2020-10-05 17:11:16 +02003284 if (!b_data(&h1c->obuf))
Christopher Fauletdb451fb2021-10-27 15:36:38 +02003285 h1_shutw_conn(cs->conn);
Christopher Faulet6b81df72019-10-01 22:08:43 +02003286 end:
3287 TRACE_LEAVE(H1_EV_STRM_SHUT, h1c->conn, h1s);
Christopher Faulet51dbc942018-09-13 09:05:15 +02003288}
3289
Christopher Fauletdb451fb2021-10-27 15:36:38 +02003290static void h1_shutw_conn(struct connection *conn)
Christopher Faulet51dbc942018-09-13 09:05:15 +02003291{
Willy Tarreau3d2ee552018-12-19 14:12:10 +01003292 struct h1c *h1c = conn->ctx;
Christopher Faulet51dbc942018-09-13 09:05:15 +02003293
Willy Tarreau62592ad2021-03-26 09:09:42 +01003294 if (conn->flags & CO_FL_SOCK_WR_SH)
3295 return;
3296
Christopher Fauletdb451fb2021-10-27 15:36:38 +02003297 TRACE_ENTER(H1_EV_H1C_END, conn);
Christopher Faulet666a0c42019-01-08 11:12:04 +01003298 conn_xprt_shutw(conn);
Christopher Fauletdb451fb2021-10-27 15:36:38 +02003299 conn_sock_shutw(conn, (h1c && !(h1c->flags & H1C_F_ST_SILENT_SHUT)));
3300 TRACE_LEAVE(H1_EV_H1C_END, conn);
Christopher Faulet51dbc942018-09-13 09:05:15 +02003301}
3302
Willy Tarreauee1a6fc2020-01-17 07:52:13 +01003303/* Called from the upper layer, to unsubscribe <es> from events <event_type>
3304 * The <es> pointer is not allowed to differ from the one passed to the
3305 * subscribe() call. It always returns zero.
3306 */
3307static int h1_unsubscribe(struct conn_stream *cs, int event_type, struct wait_event *es)
Christopher Faulet51dbc942018-09-13 09:05:15 +02003308{
Christopher Faulet51dbc942018-09-13 09:05:15 +02003309 struct h1s *h1s = cs->ctx;
3310
3311 if (!h1s)
3312 return 0;
3313
Willy Tarreau1b0d4d12020-01-16 11:03:19 +01003314 BUG_ON(event_type & ~(SUB_RETRY_SEND|SUB_RETRY_RECV));
Willy Tarreauee1a6fc2020-01-17 07:52:13 +01003315 BUG_ON(h1s->subs && h1s->subs != es);
Willy Tarreau1b0d4d12020-01-16 11:03:19 +01003316
Willy Tarreauee1a6fc2020-01-17 07:52:13 +01003317 es->events &= ~event_type;
3318 if (!es->events)
Willy Tarreau1b0d4d12020-01-16 11:03:19 +01003319 h1s->subs = NULL;
3320
3321 if (event_type & SUB_RETRY_RECV)
Christopher Faulet6b81df72019-10-01 22:08:43 +02003322 TRACE_DEVEL("unsubscribe(recv)", H1_EV_STRM_RECV, h1s->h1c->conn, h1s);
Willy Tarreau1b0d4d12020-01-16 11:03:19 +01003323
3324 if (event_type & SUB_RETRY_SEND)
Christopher Faulet6b81df72019-10-01 22:08:43 +02003325 TRACE_DEVEL("unsubscribe(send)", H1_EV_STRM_SEND, h1s->h1c->conn, h1s);
Willy Tarreau1b0d4d12020-01-16 11:03:19 +01003326
Christopher Faulet51dbc942018-09-13 09:05:15 +02003327 return 0;
3328}
3329
Willy Tarreauee1a6fc2020-01-17 07:52:13 +01003330/* Called from the upper layer, to subscribe <es> to events <event_type>. The
3331 * event subscriber <es> is not allowed to change from a previous call as long
3332 * as at least one event is still subscribed. The <event_type> must only be a
3333 * combination of SUB_RETRY_RECV and SUB_RETRY_SEND. It always returns 0, unless
3334 * the conn_stream <cs> was already detached, in which case it will return -1.
3335 */
3336static int h1_subscribe(struct conn_stream *cs, int event_type, struct wait_event *es)
Christopher Faulet51dbc942018-09-13 09:05:15 +02003337{
Christopher Faulet51dbc942018-09-13 09:05:15 +02003338 struct h1s *h1s = cs->ctx;
Christopher Faulet51bb1852019-09-04 10:22:34 +02003339 struct h1c *h1c;
Christopher Faulet51dbc942018-09-13 09:05:15 +02003340
3341 if (!h1s)
3342 return -1;
3343
Willy Tarreau1b0d4d12020-01-16 11:03:19 +01003344 BUG_ON(event_type & ~(SUB_RETRY_SEND|SUB_RETRY_RECV));
Willy Tarreauee1a6fc2020-01-17 07:52:13 +01003345 BUG_ON(h1s->subs && h1s->subs != es);
Willy Tarreau1b0d4d12020-01-16 11:03:19 +01003346
Willy Tarreauee1a6fc2020-01-17 07:52:13 +01003347 es->events |= event_type;
3348 h1s->subs = es;
Willy Tarreau1b0d4d12020-01-16 11:03:19 +01003349
3350 if (event_type & SUB_RETRY_RECV)
Christopher Faulet6b81df72019-10-01 22:08:43 +02003351 TRACE_DEVEL("subscribe(recv)", H1_EV_STRM_RECV, h1s->h1c->conn, h1s);
Willy Tarreau1b0d4d12020-01-16 11:03:19 +01003352
3353
Christopher Faulet6b81df72019-10-01 22:08:43 +02003354 if (event_type & SUB_RETRY_SEND) {
3355 TRACE_DEVEL("subscribe(send)", H1_EV_STRM_SEND, h1s->h1c->conn, h1s);
Christopher Faulet6b81df72019-10-01 22:08:43 +02003356 /*
3357 * If the conn_stream attempt to subscribe, and the
3358 * mux isn't subscribed to the connection, then it
3359 * probably means the connection wasn't established
3360 * yet, so we have to subscribe.
3361 */
3362 h1c = h1s->h1c;
3363 if (!(h1c->wait_event.events & SUB_RETRY_SEND))
3364 h1c->conn->xprt->subscribe(h1c->conn,
3365 h1c->conn->xprt_ctx,
3366 SUB_RETRY_SEND,
3367 &h1c->wait_event);
3368 }
Christopher Faulet6b81df72019-10-01 22:08:43 +02003369 return 0;
Christopher Faulet51dbc942018-09-13 09:05:15 +02003370}
3371
Christopher Faulet93a466b2021-09-21 15:50:55 +02003372/* Called from the upper layer, to receive data.
3373 *
3374 * The caller is responsible for defragmenting <buf> if necessary. But <flags>
3375 * must be tested to know the calling context. If CO_RFL_BUF_FLUSH is set, it
3376 * means the caller wants to flush input data (from the mux buffer and the
3377 * channel buffer) to be able to use kernel splicing or any kind of mux-to-mux
3378 * xfer. If CO_RFL_KEEP_RECV is set, the mux must always subscribe for read
3379 * events before giving back. CO_RFL_BUF_WET is set if <buf> is congested with
3380 * data scheduled for leaving soon. CO_RFL_BUF_NOT_STUCK is set to instruct the
3381 * mux it may optimize the data copy to <buf> if necessary. Otherwise, it should
3382 * copy as much data as possible.
3383 */
Christopher Faulet51dbc942018-09-13 09:05:15 +02003384static size_t h1_rcv_buf(struct conn_stream *cs, struct buffer *buf, size_t count, int flags)
3385{
3386 struct h1s *h1s = cs->ctx;
Christopher Faulet539e0292018-11-19 10:40:09 +01003387 struct h1c *h1c = h1s->h1c;
Christopher Faulet0a799aa2020-09-24 09:52:52 +02003388 struct h1m *h1m = (!(h1c->flags & H1C_F_IS_BACK) ? &h1s->req : &h1s->res);
Christopher Faulet51dbc942018-09-13 09:05:15 +02003389 size_t ret = 0;
3390
Willy Tarreau022e5e52020-09-10 09:33:15 +02003391 TRACE_ENTER(H1_EV_STRM_RECV, h1c->conn, h1s, 0, (size_t[]){count});
Christopher Faulet39c7b6b2021-01-21 17:44:35 +01003392
3393 /* Do nothing for now if not READY */
3394 if (!(h1c->flags & H1C_F_ST_READY)) {
3395 TRACE_DEVEL("h1c not ready yet", H1_EV_H1C_RECV|H1_EV_H1C_BLK, h1c->conn);
3396 goto end;
3397 }
3398
Christopher Faulet539e0292018-11-19 10:40:09 +01003399 if (!(h1c->flags & H1C_F_IN_ALLOC))
Christopher Faulet30db3d72019-05-17 15:35:33 +02003400 ret = h1_process_input(h1c, buf, count);
Christopher Faulet6b81df72019-10-01 22:08:43 +02003401 else
3402 TRACE_DEVEL("h1c ibuf not allocated", H1_EV_H1C_RECV|H1_EV_H1C_BLK, h1c->conn);
Christopher Faulet1be55f92018-10-02 15:59:23 +02003403
Christopher Faulet2b861bf2021-04-06 17:24:39 +02003404 if ((flags & CO_RFL_BUF_FLUSH) && (cs->flags & CS_FL_MAY_SPLICE)) {
3405 h1c->flags |= H1C_F_WANT_SPLICE;
3406 TRACE_STATE("Block xprt rcv_buf to flush stream's buffer (want_splice)", H1_EV_STRM_RECV, h1c->conn, h1s);
Christopher Faulete18777b2019-04-16 16:46:36 +02003407 }
Olivier Houchard02bac852019-08-22 18:34:25 +02003408 else {
Christopher Faulet1baef152021-04-08 18:42:59 +02003409 if (((flags & CO_RFL_KEEP_RECV) || (h1m->state != H1_MSG_DONE)) && !(h1c->wait_event.events & SUB_RETRY_RECV))
Willy Tarreau2c1f37d2020-03-04 17:50:02 +01003410 h1c->conn->xprt->subscribe(h1c->conn, h1c->conn->xprt_ctx, SUB_RETRY_RECV, &h1c->wait_event);
Christopher Faulet51dbc942018-09-13 09:05:15 +02003411 }
Christopher Faulet39c7b6b2021-01-21 17:44:35 +01003412
3413 end:
Willy Tarreau022e5e52020-09-10 09:33:15 +02003414 TRACE_LEAVE(H1_EV_STRM_RECV, h1c->conn, h1s, 0, (size_t[]){ret});
Christopher Faulet51dbc942018-09-13 09:05:15 +02003415 return ret;
3416}
3417
3418
3419/* Called from the upper layer, to send data */
3420static size_t h1_snd_buf(struct conn_stream *cs, struct buffer *buf, size_t count, int flags)
3421{
3422 struct h1s *h1s = cs->ctx;
3423 struct h1c *h1c;
Christopher Faulet5d37dac2018-11-22 10:58:42 +01003424 size_t total = 0;
Christopher Faulet51dbc942018-09-13 09:05:15 +02003425
3426 if (!h1s)
Christopher Faulet5d37dac2018-11-22 10:58:42 +01003427 return 0;
Christopher Faulet51dbc942018-09-13 09:05:15 +02003428 h1c = h1s->h1c;
Olivier Houchard305d5ab2019-07-24 18:07:06 +02003429
Willy Tarreau022e5e52020-09-10 09:33:15 +02003430 TRACE_ENTER(H1_EV_STRM_SEND, h1c->conn, h1s, 0, (size_t[]){count});
Christopher Faulet6b81df72019-10-01 22:08:43 +02003431
Olivier Houchard305d5ab2019-07-24 18:07:06 +02003432 /* If we're not connected yet, or we're waiting for a handshake, stop
3433 * now, as we don't want to remove everything from the channel buffer
3434 * before we're sure we can send it.
3435 */
Willy Tarreau911db9b2020-01-23 16:27:54 +01003436 if (h1c->conn->flags & CO_FL_WAIT_XPRT) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02003437 TRACE_LEAVE(H1_EV_STRM_SEND, h1c->conn, h1s);
Christopher Faulet3b88b8d2018-10-26 17:36:03 +02003438 return 0;
Christopher Faulet6b81df72019-10-01 22:08:43 +02003439 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02003440
Christopher Fauletdea24742021-01-22 15:12:30 +01003441 if (h1c->flags & H1C_F_ST_ERROR) {
3442 cs->flags |= CS_FL_ERROR;
Christopher Faulet26a26432021-01-27 11:27:50 +01003443 TRACE_ERROR("H1C on error, leaving in error", H1_EV_STRM_SEND|H1_EV_H1C_ERR|H1_EV_H1S_ERR|H1_EV_STRM_ERR, h1c->conn, h1s);
Christopher Fauletdea24742021-01-22 15:12:30 +01003444 return 0;
3445 }
3446
Christopher Faulet46230362019-10-17 16:04:20 +02003447 /* Inherit some flags from the upper layer */
3448 h1c->flags &= ~(H1C_F_CO_MSG_MORE|H1C_F_CO_STREAMER);
3449 if (flags & CO_SFL_MSG_MORE)
3450 h1c->flags |= H1C_F_CO_MSG_MORE;
3451 if (flags & CO_SFL_STREAMER)
3452 h1c->flags |= H1C_F_CO_STREAMER;
3453
Christopher Fauletc31872f2019-06-04 22:09:36 +02003454 while (count) {
Christopher Faulet5d37dac2018-11-22 10:58:42 +01003455 size_t ret = 0;
Christopher Faulet51dbc942018-09-13 09:05:15 +02003456
Christopher Faulet5d37dac2018-11-22 10:58:42 +01003457 if (!(h1c->flags & (H1C_F_OUT_FULL|H1C_F_OUT_ALLOC)))
3458 ret = h1_process_output(h1c, buf, count);
Christopher Faulet6b81df72019-10-01 22:08:43 +02003459 else
3460 TRACE_DEVEL("h1c obuf not allocated", H1_EV_STRM_SEND|H1_EV_H1S_BLK, h1c->conn, h1s);
Olivier Houchardc89a42f2020-06-19 16:15:05 +02003461
3462 if ((count - ret) > 0)
3463 h1c->flags |= H1C_F_CO_MSG_MORE;
3464
Christopher Faulet5d37dac2018-11-22 10:58:42 +01003465 if (!ret)
3466 break;
3467 total += ret;
Christopher Fauletc31872f2019-06-04 22:09:36 +02003468 count -= ret;
Olivier Houchard68787ef2020-01-15 19:13:32 +01003469 if ((h1c->wait_event.events & SUB_RETRY_SEND) || !h1_send(h1c))
Christopher Faulet5d37dac2018-11-22 10:58:42 +01003470 break;
Christopher Faulet51dbc942018-09-13 09:05:15 +02003471 }
Christopher Fauletdea24742021-01-22 15:12:30 +01003472
3473 if (h1c->flags & H1C_F_ST_ERROR) {
Christopher Fauletdea24742021-01-22 15:12:30 +01003474 cs->flags |= CS_FL_ERROR;
Christopher Faulet26a26432021-01-27 11:27:50 +01003475 TRACE_ERROR("reporting error to the app-layer stream", H1_EV_STRM_SEND|H1_EV_H1S_ERR|H1_EV_STRM_ERR, h1c->conn, h1s);
Christopher Fauletdea24742021-01-22 15:12:30 +01003476 }
3477
Christopher Faulet7a145d62020-08-05 11:31:16 +02003478 h1_refresh_timeout(h1c);
Willy Tarreau022e5e52020-09-10 09:33:15 +02003479 TRACE_LEAVE(H1_EV_STRM_SEND, h1c->conn, h1s, 0, (size_t[]){total});
Christopher Faulet5d37dac2018-11-22 10:58:42 +01003480 return total;
Christopher Faulet51dbc942018-09-13 09:05:15 +02003481}
3482
Willy Tarreaue5733232019-05-22 19:24:06 +02003483#if defined(USE_LINUX_SPLICE)
Christopher Faulet1be55f92018-10-02 15:59:23 +02003484/* Send and get, using splicing */
3485static int h1_rcv_pipe(struct conn_stream *cs, struct pipe *pipe, unsigned int count)
3486{
3487 struct h1s *h1s = cs->ctx;
Christopher Faulet0a799aa2020-09-24 09:52:52 +02003488 struct h1c *h1c = h1s->h1c;
3489 struct h1m *h1m = (!(h1c->flags & H1C_F_IS_BACK) ? &h1s->req : &h1s->res);
Christopher Faulet1be55f92018-10-02 15:59:23 +02003490 int ret = 0;
3491
Willy Tarreau022e5e52020-09-10 09:33:15 +02003492 TRACE_ENTER(H1_EV_STRM_RECV, cs->conn, h1s, 0, (size_t[]){count});
Christopher Faulet6b81df72019-10-01 22:08:43 +02003493
Christopher Faulet9fa40c42019-11-05 16:24:27 +01003494 if ((h1m->flags & H1_MF_CHNK) || (h1m->state != H1_MSG_DATA && h1m->state != H1_MSG_TUNNEL)) {
Christopher Faulet0a799aa2020-09-24 09:52:52 +02003495 h1c->flags &= ~H1C_F_WANT_SPLICE;
Christopher Fauletae635762020-09-21 11:47:16 +02003496 TRACE_STATE("Allow xprt rcv_buf on !(msg_data|msg_tunnel)", H1_EV_STRM_RECV, cs->conn, h1s);
Christopher Faulete18777b2019-04-16 16:46:36 +02003497 goto end;
3498 }
3499
Christopher Faulet0b34e512021-07-26 10:49:39 +02003500 h1c->flags |= H1C_F_WANT_SPLICE;
Willy Tarreaufbdf90a2019-06-03 13:42:54 +02003501 if (h1s_data_pending(h1s)) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02003502 TRACE_STATE("flush input buffer before splicing", H1_EV_STRM_RECV, cs->conn, h1s);
Christopher Faulet1be55f92018-10-02 15:59:23 +02003503 goto end;
Christopher Fauletd44ad5b2018-11-19 21:52:12 +01003504 }
3505
Christopher Faulet0a799aa2020-09-24 09:52:52 +02003506 if (!h1_recv_allowed(h1c)) {
Christopher Faulet0060be92020-07-03 15:02:25 +02003507 TRACE_DEVEL("leaving on !recv_allowed", H1_EV_STRM_RECV, cs->conn, h1s);
3508 goto end;
3509 }
3510
Christopher Faulet1be55f92018-10-02 15:59:23 +02003511 if (h1m->state == H1_MSG_DATA && count > h1m->curr_len)
3512 count = h1m->curr_len;
Olivier Houcharde179d0e2019-03-21 18:27:17 +01003513 ret = cs->conn->xprt->rcv_pipe(cs->conn, cs->conn->xprt_ctx, pipe, count);
Christopher Faulet1146f972019-05-29 14:35:24 +02003514 if (h1m->state == H1_MSG_DATA && ret >= 0) {
Christopher Faulet1be55f92018-10-02 15:59:23 +02003515 h1m->curr_len -= ret;
Christopher Faulet6b81df72019-10-01 22:08:43 +02003516 if (!h1m->curr_len) {
Christopher Faulet0a799aa2020-09-24 09:52:52 +02003517 h1c->flags &= ~H1C_F_WANT_SPLICE;
Christopher Fauletae635762020-09-21 11:47:16 +02003518 TRACE_STATE("Allow xprt rcv_buf on !curr_len", H1_EV_STRM_RECV, cs->conn, h1s);
Christopher Faulet6b81df72019-10-01 22:08:43 +02003519 }
Christopher Faulete18777b2019-04-16 16:46:36 +02003520 }
3521
Christopher Faulet1be55f92018-10-02 15:59:23 +02003522 end:
Christopher Faulet038ad812019-04-17 11:03:22 +02003523 if (conn_xprt_read0_pending(cs->conn)) {
Willy Tarreauc493c9c2019-06-03 14:18:22 +02003524 h1s->flags |= H1S_F_REOS;
Christopher Faulet0a799aa2020-09-24 09:52:52 +02003525 h1c->flags &= ~H1C_F_WANT_SPLICE;
Christopher Fauletae635762020-09-21 11:47:16 +02003526 TRACE_STATE("Allow xprt rcv_buf on read0", H1_EV_STRM_RECV, cs->conn, h1s);
Christopher Faulet038ad812019-04-17 11:03:22 +02003527 }
Christopher Faulet6b81df72019-10-01 22:08:43 +02003528
Christopher Faulet94d35102021-04-09 11:58:49 +02003529 if (!(h1c->flags & H1C_F_WANT_SPLICE)) {
Christopher Faulet0a799aa2020-09-24 09:52:52 +02003530 TRACE_STATE("notify the mux can't use splicing anymore", H1_EV_STRM_RECV, h1c->conn, h1s);
Willy Tarreau17ccd1a2020-01-17 16:19:34 +01003531 cs->flags &= ~CS_FL_MAY_SPLICE;
Christopher Faulet94d35102021-04-09 11:58:49 +02003532 if (!(h1c->wait_event.events & SUB_RETRY_RECV)) {
3533 TRACE_STATE("restart receiving data, subscribing", H1_EV_STRM_RECV, cs->conn, h1s);
3534 cs->conn->xprt->subscribe(cs->conn, cs->conn->xprt_ctx, SUB_RETRY_RECV, &h1c->wait_event);
3535 }
Christopher Faulet27182292020-07-03 15:08:49 +02003536 }
Willy Tarreau17ccd1a2020-01-17 16:19:34 +01003537
Willy Tarreau022e5e52020-09-10 09:33:15 +02003538 TRACE_LEAVE(H1_EV_STRM_RECV, cs->conn, h1s, 0, (size_t[]){ret});
Christopher Faulet1be55f92018-10-02 15:59:23 +02003539 return ret;
Christopher Faulet1be55f92018-10-02 15:59:23 +02003540}
3541
3542static int h1_snd_pipe(struct conn_stream *cs, struct pipe *pipe)
3543{
3544 struct h1s *h1s = cs->ctx;
Christopher Faulet1be55f92018-10-02 15:59:23 +02003545 int ret = 0;
3546
Willy Tarreau022e5e52020-09-10 09:33:15 +02003547 TRACE_ENTER(H1_EV_STRM_SEND, cs->conn, h1s, 0, (size_t[]){pipe->data});
Christopher Faulet6b81df72019-10-01 22:08:43 +02003548
Christopher Faulet8454f2d2021-04-06 17:27:32 +02003549 if (b_data(&h1s->h1c->obuf)) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02003550 if (!(h1s->h1c->wait_event.events & SUB_RETRY_SEND)) {
3551 TRACE_STATE("more data to send, subscribing", H1_EV_STRM_SEND, cs->conn, h1s);
Olivier Houcharde179d0e2019-03-21 18:27:17 +01003552 cs->conn->xprt->subscribe(cs->conn, cs->conn->xprt_ctx, SUB_RETRY_SEND, &h1s->h1c->wait_event);
Christopher Faulet6b81df72019-10-01 22:08:43 +02003553 }
Christopher Faulet8454f2d2021-04-06 17:27:32 +02003554 goto end;
Christopher Fauletd44ad5b2018-11-19 21:52:12 +01003555 }
Christopher Faulet6b81df72019-10-01 22:08:43 +02003556
Christopher Faulet8454f2d2021-04-06 17:27:32 +02003557 ret = cs->conn->xprt->snd_pipe(cs->conn, cs->conn->xprt_ctx, pipe);
3558
3559 end:
Willy Tarreau022e5e52020-09-10 09:33:15 +02003560 TRACE_LEAVE(H1_EV_STRM_SEND, cs->conn, h1s, 0, (size_t[]){ret});
Christopher Faulet1be55f92018-10-02 15:59:23 +02003561 return ret;
3562}
3563#endif
3564
Olivier Houchard9b8e11e2019-10-25 16:19:26 +02003565static int h1_ctl(struct connection *conn, enum mux_ctl_type mux_ctl, void *output)
3566{
Christopher Fauletc18fc232020-10-06 17:41:36 +02003567 const struct h1c *h1c = conn->ctx;
Olivier Houchard9b8e11e2019-10-25 16:19:26 +02003568 int ret = 0;
Christopher Fauletc18fc232020-10-06 17:41:36 +02003569
Olivier Houchard9b8e11e2019-10-25 16:19:26 +02003570 switch (mux_ctl) {
3571 case MUX_STATUS:
Willy Tarreau911db9b2020-01-23 16:27:54 +01003572 if (!(conn->flags & CO_FL_WAIT_XPRT))
Olivier Houchard9b8e11e2019-10-25 16:19:26 +02003573 ret |= MUX_STATUS_READY;
3574 return ret;
Christopher Faulet4c8ad842020-10-06 14:59:17 +02003575 case MUX_EXIT_STATUS:
Christopher Fauletc18fc232020-10-06 17:41:36 +02003576 ret = (h1c->errcode == 400 ? MUX_ES_INVALID_ERR :
3577 (h1c->errcode == 408 ? MUX_ES_TOUT_ERR :
Christopher Faulet2eed8002020-12-07 11:26:13 +01003578 (h1c->errcode == 501 ? MUX_ES_NOTIMPL_ERR :
3579 (h1c->errcode == 500 ? MUX_ES_INTERNAL_ERR :
3580 MUX_ES_SUCCESS))));
Christopher Fauletc18fc232020-10-06 17:41:36 +02003581 return ret;
Olivier Houchard9b8e11e2019-10-25 16:19:26 +02003582 default:
3583 return -1;
3584 }
3585}
3586
Olivier Houcharda8f6b432018-12-21 15:20:29 +01003587/* for debugging with CLI's "show fd" command */
Willy Tarreau8050efe2021-01-21 08:26:06 +01003588static int h1_show_fd(struct buffer *msg, struct connection *conn)
Olivier Houcharda8f6b432018-12-21 15:20:29 +01003589{
3590 struct h1c *h1c = conn->ctx;
3591 struct h1s *h1s = h1c->h1s;
Willy Tarreau0c0c0a22021-01-21 09:13:35 +01003592 int ret = 0;
Olivier Houcharda8f6b432018-12-21 15:20:29 +01003593
Christopher Fauletf376a312019-01-04 15:16:06 +01003594 chunk_appendf(msg, " h1c.flg=0x%x .sub=%d .ibuf=%u@%p+%u/%u .obuf=%u@%p+%u/%u",
3595 h1c->flags, h1c->wait_event.events,
Olivier Houcharda8f6b432018-12-21 15:20:29 +01003596 (unsigned int)b_data(&h1c->ibuf), b_orig(&h1c->ibuf),
3597 (unsigned int)b_head_ofs(&h1c->ibuf), (unsigned int)b_size(&h1c->ibuf),
3598 (unsigned int)b_data(&h1c->obuf), b_orig(&h1c->obuf),
3599 (unsigned int)b_head_ofs(&h1c->obuf), (unsigned int)b_size(&h1c->obuf));
3600
3601 if (h1s) {
3602 char *method;
3603
3604 if (h1s->meth < HTTP_METH_OTHER)
3605 method = http_known_methods[h1s->meth].ptr;
3606 else
3607 method = "UNKNOWN";
3608 chunk_appendf(msg, " h1s=%p h1s.flg=0x%x .req.state=%s .res.state=%s"
3609 " .meth=%s status=%d",
3610 h1s, h1s->flags,
3611 h1m_state_str(h1s->req.state),
3612 h1m_state_str(h1s->res.state), method, h1s->status);
3613 if (h1s->cs)
3614 chunk_appendf(msg, " .cs.flg=0x%08x .cs.data=%p",
3615 h1s->cs->flags, h1s->cs->data);
Willy Tarreau150c4f82021-01-20 17:05:58 +01003616
3617 chunk_appendf(&trash, " .subs=%p", h1s->subs);
3618 if (h1s->subs) {
Christopher Faulet6c93c4e2021-02-25 10:06:29 +01003619 chunk_appendf(&trash, "(ev=%d tl=%p", h1s->subs->events, h1s->subs->tasklet);
3620 chunk_appendf(&trash, " tl.calls=%d tl.ctx=%p tl.fct=",
3621 h1s->subs->tasklet->calls,
3622 h1s->subs->tasklet->context);
3623 if (h1s->subs->tasklet->calls >= 1000000)
3624 ret = 1;
3625 resolve_sym_name(&trash, NULL, h1s->subs->tasklet->process);
3626 chunk_appendf(&trash, ")");
Willy Tarreau150c4f82021-01-20 17:05:58 +01003627 }
Olivier Houcharda8f6b432018-12-21 15:20:29 +01003628 }
Willy Tarreau0c0c0a22021-01-21 09:13:35 +01003629 return ret;
Christopher Faulet98fbe952019-07-22 16:18:24 +02003630}
3631
3632
3633/* Add an entry in the headers map. Returns -1 on error and 0 on success. */
3634static int add_hdr_case_adjust(const char *from, const char *to, char **err)
3635{
3636 struct h1_hdr_entry *entry;
3637
3638 /* Be sure there is a non-empty <to> */
3639 if (!strlen(to)) {
3640 memprintf(err, "expect <to>");
3641 return -1;
3642 }
3643
3644 /* Be sure only the case differs between <from> and <to> */
Tim Duesterhuse5ff1412021-01-02 22:31:53 +01003645 if (strcasecmp(from, to) != 0) {
Christopher Faulet98fbe952019-07-22 16:18:24 +02003646 memprintf(err, "<from> and <to> must not differ execpt the case");
3647 return -1;
3648 }
3649
3650 /* Be sure <from> does not already existsin the tree */
3651 if (ebis_lookup(&hdrs_map.map, from)) {
3652 memprintf(err, "duplicate entry '%s'", from);
3653 return -1;
3654 }
3655
3656 /* Create the entry and insert it in the tree */
3657 entry = malloc(sizeof(*entry));
3658 if (!entry) {
3659 memprintf(err, "out of memory");
3660 return -1;
3661 }
3662
3663 entry->node.key = strdup(from);
Tim Duesterhusdcf753a2021-03-04 17:31:47 +01003664 entry->name = ist(strdup(to));
Tim Duesterhus7b5777d2021-03-02 18:57:28 +01003665 if (!entry->node.key || !isttest(entry->name)) {
Christopher Faulet98fbe952019-07-22 16:18:24 +02003666 free(entry->node.key);
Tim Duesterhused526372020-03-05 17:56:33 +01003667 istfree(&entry->name);
Christopher Faulet98fbe952019-07-22 16:18:24 +02003668 free(entry);
3669 memprintf(err, "out of memory");
3670 return -1;
3671 }
3672 ebis_insert(&hdrs_map.map, &entry->node);
3673 return 0;
3674}
3675
Olivier Houchardf12ca9f2020-02-20 16:00:18 +01003676/* Migrate the the connection to the current thread.
3677 * Return 0 if successful, non-zero otherwise.
3678 * Expected to be called with the old thread lock held.
3679 */
Olivier Houchard1662cdb2020-07-03 14:04:37 +02003680static int h1_takeover(struct connection *conn, int orig_tid)
Olivier Houchardf12ca9f2020-02-20 16:00:18 +01003681{
3682 struct h1c *h1c = conn->ctx;
Willy Tarreau09e0d9e2020-07-01 16:39:33 +02003683 struct task *task;
Olivier Houchardf12ca9f2020-02-20 16:00:18 +01003684
3685 if (fd_takeover(conn->handle.fd, conn) != 0)
3686 return -1;
Olivier Houcharda74bb7e2020-07-03 14:01:21 +02003687
3688 if (conn->xprt->takeover && conn->xprt->takeover(conn, conn->xprt_ctx, orig_tid) != 0) {
3689 /* We failed to takeover the xprt, even if the connection may
3690 * still be valid, flag it as error'd, as we have already
3691 * taken over the fd, and wake the tasklet, so that it will
3692 * destroy it.
3693 */
3694 conn->flags |= CO_FL_ERROR;
3695 tasklet_wakeup_on(h1c->wait_event.tasklet, orig_tid);
3696 return -1;
3697 }
3698
Olivier Houchardf12ca9f2020-02-20 16:00:18 +01003699 if (h1c->wait_event.events)
3700 h1c->conn->xprt->unsubscribe(h1c->conn, h1c->conn->xprt_ctx,
3701 h1c->wait_event.events, &h1c->wait_event);
3702 /* To let the tasklet know it should free itself, and do nothing else,
3703 * set its context to NULL.
3704 */
3705 h1c->wait_event.tasklet->context = NULL;
Olivier Houchard1662cdb2020-07-03 14:04:37 +02003706 tasklet_wakeup_on(h1c->wait_event.tasklet, orig_tid);
Willy Tarreau09e0d9e2020-07-01 16:39:33 +02003707
3708 task = h1c->task;
3709 if (task) {
3710 task->context = NULL;
3711 h1c->task = NULL;
3712 __ha_barrier_store();
3713 task_kill(task);
Olivier Houchardf12ca9f2020-02-20 16:00:18 +01003714
3715 h1c->task = task_new(tid_bit);
3716 if (!h1c->task) {
3717 h1_release(h1c);
3718 return -1;
3719 }
3720 h1c->task->process = h1_timeout_task;
3721 h1c->task->context = h1c;
3722 }
3723 h1c->wait_event.tasklet = tasklet_new();
3724 if (!h1c->wait_event.tasklet) {
3725 h1_release(h1c);
3726 return -1;
3727 }
3728 h1c->wait_event.tasklet->process = h1_io_cb;
3729 h1c->wait_event.tasklet->context = h1c;
3730 h1c->conn->xprt->subscribe(h1c->conn, h1c->conn->xprt_ctx,
3731 SUB_RETRY_RECV, &h1c->wait_event);
3732
3733 return 0;
3734}
3735
3736
Christopher Faulet98fbe952019-07-22 16:18:24 +02003737static void h1_hdeaders_case_adjust_deinit()
3738{
3739 struct ebpt_node *node, *next;
3740 struct h1_hdr_entry *entry;
3741
3742 node = ebpt_first(&hdrs_map.map);
3743 while (node) {
3744 next = ebpt_next(node);
3745 ebpt_delete(node);
3746 entry = container_of(node, struct h1_hdr_entry, node);
3747 free(entry->node.key);
Tim Duesterhused526372020-03-05 17:56:33 +01003748 istfree(&entry->name);
Christopher Faulet98fbe952019-07-22 16:18:24 +02003749 free(entry);
3750 node = next;
3751 }
3752 free(hdrs_map.name);
Olivier Houcharda8f6b432018-12-21 15:20:29 +01003753}
3754
Christopher Faulet98fbe952019-07-22 16:18:24 +02003755static int cfg_h1_headers_case_adjust_postparser()
3756{
3757 FILE *file = NULL;
3758 char *c, *key_beg, *key_end, *value_beg, *value_end;
3759 char *err;
3760 int rc, line = 0, err_code = 0;
3761
3762 if (!hdrs_map.name)
3763 goto end;
3764
3765 file = fopen(hdrs_map.name, "r");
3766 if (!file) {
3767 ha_alert("config : h1-outgoing-headers-case-adjust-file '%s': failed to open file.\n",
3768 hdrs_map.name);
3769 err_code |= ERR_ALERT | ERR_FATAL;
3770 goto end;
3771 }
3772
3773 /* now parse all lines. The file may contain only two header name per
3774 * line, separated by spaces. All heading and trailing spaces will be
3775 * ignored. Lines starting with a # are ignored.
3776 */
3777 while (fgets(trash.area, trash.size, file) != NULL) {
3778 line++;
3779 c = trash.area;
3780
3781 /* strip leading spaces and tabs */
3782 while (*c == ' ' || *c == '\t')
3783 c++;
3784
3785 /* ignore emptu lines, or lines beginning with a dash */
3786 if (*c == '#' || *c == '\0' || *c == '\r' || *c == '\n')
3787 continue;
3788
3789 /* look for the end of the key */
3790 key_beg = c;
3791 while (*c != '\0' && *c != ' ' && *c != '\t' && *c != '\n' && *c != '\r')
3792 c++;
3793 key_end = c;
3794
3795 /* strip middle spaces and tabs */
3796 while (*c == ' ' || *c == '\t')
3797 c++;
3798
3799 /* look for the end of the value, it is the end of the line */
3800 value_beg = c;
3801 while (*c && *c != '\n' && *c != '\r')
3802 c++;
3803 value_end = c;
3804
3805 /* trim possibly trailing spaces and tabs */
3806 while (value_end > value_beg && (value_end[-1] == ' ' || value_end[-1] == '\t'))
3807 value_end--;
3808
3809 /* set final \0 and check entries */
3810 *key_end = '\0';
3811 *value_end = '\0';
3812
3813 err = NULL;
3814 rc = add_hdr_case_adjust(key_beg, value_beg, &err);
3815 if (rc < 0) {
Christopher Faulet98fbe952019-07-22 16:18:24 +02003816 ha_alert("config : h1-outgoing-headers-case-adjust-file '%s' : %s at line %d.\n",
3817 hdrs_map.name, err, line);
3818 err_code |= ERR_ALERT | ERR_FATAL;
Christopher Fauletcac5c092019-07-30 16:51:42 +02003819 free(err);
Christopher Faulet98fbe952019-07-22 16:18:24 +02003820 goto end;
3821 }
3822 if (rc > 0) {
Christopher Faulet98fbe952019-07-22 16:18:24 +02003823 ha_warning("config : h1-outgoing-headers-case-adjust-file '%s' : %s at line %d.\n",
3824 hdrs_map.name, err, line);
3825 err_code |= ERR_WARN;
Christopher Fauletcac5c092019-07-30 16:51:42 +02003826 free(err);
Christopher Faulet98fbe952019-07-22 16:18:24 +02003827 }
3828 }
3829
3830 end:
3831 if (file)
3832 fclose(file);
3833 hap_register_post_deinit(h1_hdeaders_case_adjust_deinit);
3834 return err_code;
3835}
3836
3837
3838/* config parser for global "h1-outgoing-header-case-adjust" */
3839static int cfg_parse_h1_header_case_adjust(char **args, int section_type, struct proxy *curpx,
Willy Tarreau01825162021-03-09 09:53:46 +01003840 const struct proxy *defpx, const char *file, int line,
Christopher Faulet98fbe952019-07-22 16:18:24 +02003841 char **err)
3842{
3843 if (too_many_args(2, args, err, NULL))
3844 return -1;
3845 if (!*(args[1]) || !*(args[2])) {
3846 memprintf(err, "'%s' expects <from> and <to> as argument.", args[0]);
3847 return -1;
3848 }
3849 return add_hdr_case_adjust(args[1], args[2], err);
3850}
3851
3852/* config parser for global "h1-outgoing-headers-case-adjust-file" */
3853static int cfg_parse_h1_headers_case_adjust_file(char **args, int section_type, struct proxy *curpx,
Willy Tarreau01825162021-03-09 09:53:46 +01003854 const struct proxy *defpx, const char *file, int line,
Christopher Faulet98fbe952019-07-22 16:18:24 +02003855 char **err)
3856{
3857 if (too_many_args(1, args, err, NULL))
3858 return -1;
3859 if (!*(args[1])) {
3860 memprintf(err, "'%s' expects <file> as argument.", args[0]);
3861 return -1;
3862 }
3863 free(hdrs_map.name);
3864 hdrs_map.name = strdup(args[1]);
3865 return 0;
3866}
3867
3868
3869/* config keyword parsers */
3870static struct cfg_kw_list cfg_kws = {{ }, {
3871 { CFG_GLOBAL, "h1-case-adjust", cfg_parse_h1_header_case_adjust },
3872 { CFG_GLOBAL, "h1-case-adjust-file", cfg_parse_h1_headers_case_adjust_file },
3873 { 0, NULL, NULL },
3874 }
3875};
3876
3877INITCALL1(STG_REGISTER, cfg_register_keywords, &cfg_kws);
3878REGISTER_CONFIG_POSTPARSER("h1-headers-map", cfg_h1_headers_case_adjust_postparser);
3879
3880
Christopher Faulet51dbc942018-09-13 09:05:15 +02003881/****************************************/
Ilya Shipitsinc02a23f2020-05-06 00:53:22 +05003882/* MUX initialization and instantiation */
Christopher Faulet51dbc942018-09-13 09:05:15 +02003883/****************************************/
3884
3885/* The mux operations */
Christopher Faulet3f612f72021-02-05 16:44:21 +01003886static const struct mux_ops mux_http_ops = {
Christopher Faulet51dbc942018-09-13 09:05:15 +02003887 .init = h1_init,
3888 .wake = h1_wake,
3889 .attach = h1_attach,
3890 .get_first_cs = h1_get_first_cs,
3891 .detach = h1_detach,
3892 .destroy = h1_destroy,
3893 .avail_streams = h1_avail_streams,
Willy Tarreau00f18a32019-01-26 12:19:01 +01003894 .used_streams = h1_used_streams,
Christopher Faulet51dbc942018-09-13 09:05:15 +02003895 .rcv_buf = h1_rcv_buf,
3896 .snd_buf = h1_snd_buf,
Willy Tarreaue5733232019-05-22 19:24:06 +02003897#if defined(USE_LINUX_SPLICE)
Christopher Faulet1be55f92018-10-02 15:59:23 +02003898 .rcv_pipe = h1_rcv_pipe,
3899 .snd_pipe = h1_snd_pipe,
3900#endif
Christopher Faulet51dbc942018-09-13 09:05:15 +02003901 .subscribe = h1_subscribe,
3902 .unsubscribe = h1_unsubscribe,
3903 .shutr = h1_shutr,
3904 .shutw = h1_shutw,
Olivier Houcharda8f6b432018-12-21 15:20:29 +01003905 .show_fd = h1_show_fd,
Olivier Houchard9b8e11e2019-10-25 16:19:26 +02003906 .ctl = h1_ctl,
Olivier Houchardf12ca9f2020-02-20 16:00:18 +01003907 .takeover = h1_takeover,
Christopher Faulet9f38f5a2019-04-03 09:53:32 +02003908 .flags = MX_FL_HTX,
Willy Tarreau0a7a4fb2019-05-22 11:36:54 +02003909 .name = "H1",
Christopher Faulet51dbc942018-09-13 09:05:15 +02003910};
3911
Christopher Faulet3f612f72021-02-05 16:44:21 +01003912static const struct mux_ops mux_h1_ops = {
3913 .init = h1_init,
3914 .wake = h1_wake,
3915 .attach = h1_attach,
3916 .get_first_cs = h1_get_first_cs,
3917 .detach = h1_detach,
3918 .destroy = h1_destroy,
3919 .avail_streams = h1_avail_streams,
3920 .used_streams = h1_used_streams,
3921 .rcv_buf = h1_rcv_buf,
3922 .snd_buf = h1_snd_buf,
3923#if defined(USE_LINUX_SPLICE)
3924 .rcv_pipe = h1_rcv_pipe,
3925 .snd_pipe = h1_snd_pipe,
3926#endif
3927 .subscribe = h1_subscribe,
3928 .unsubscribe = h1_unsubscribe,
3929 .shutr = h1_shutr,
3930 .shutw = h1_shutw,
3931 .show_fd = h1_show_fd,
3932 .ctl = h1_ctl,
3933 .takeover = h1_takeover,
3934 .flags = MX_FL_HTX|MX_FL_NO_UPG,
3935 .name = "H1",
3936};
Christopher Faulet51dbc942018-09-13 09:05:15 +02003937
Christopher Faulet3f612f72021-02-05 16:44:21 +01003938/* this mux registers default HTX proto but also h1 proto (to be referenced in the conf */
3939static struct mux_proto_list mux_proto_h1 =
3940 { .token = IST("h1"), .mode = PROTO_MODE_HTTP, .side = PROTO_SIDE_BOTH, .mux = &mux_h1_ops };
3941static struct mux_proto_list mux_proto_http =
3942 { .token = IST(""), .mode = PROTO_MODE_HTTP, .side = PROTO_SIDE_BOTH, .mux = &mux_http_ops };
Christopher Faulet51dbc942018-09-13 09:05:15 +02003943
Christopher Faulet3f612f72021-02-05 16:44:21 +01003944INITCALL1(STG_REGISTER, register_mux_proto, &mux_proto_h1);
3945INITCALL1(STG_REGISTER, register_mux_proto, &mux_proto_http);
Willy Tarreau0108d902018-11-25 19:14:37 +01003946
Christopher Faulet51dbc942018-09-13 09:05:15 +02003947/*
3948 * Local variables:
3949 * c-indent-level: 8
3950 * c-basic-offset: 8
3951 * End:
3952 */