blob: 72606293f2d7ad78336bdda8d01d1a07ad986fc8 [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 */
12#include <common/cfgparse.h>
13#include <common/config.h>
Willy Tarreauafba57a2018-12-11 13:44:24 +010014#include <common/h1.h>
Christopher Faulet0ef372a2019-04-08 10:57:20 +020015#include <common/h2.h>
Willy Tarreaub96b77e2018-12-11 10:22:41 +010016#include <common/htx.h>
Willy Tarreau0108d902018-11-25 19:14:37 +010017#include <common/initcall.h>
Christopher Faulet51dbc942018-09-13 09:05:15 +020018
Christopher Faulet98fbe952019-07-22 16:18:24 +020019#include <ebistree.h>
20
Christopher Faulet1be55f92018-10-02 15:59:23 +020021#include <types/pipe.h>
Christopher Fauletf2824e62018-10-01 12:12:37 +020022#include <types/proxy.h>
23#include <types/session.h>
24
Christopher Faulet51dbc942018-09-13 09:05:15 +020025#include <proto/connection.h>
Christopher Faulet4f0f88a2019-08-10 11:17:44 +020026#include <proto/h1_htx.h>
Christopher Faulet9768c262018-10-22 09:34:31 +020027#include <proto/http_htx.h>
Christopher Faulet129817b2018-09-20 16:14:40 +020028#include <proto/log.h>
Olivier Houchard44d59142018-12-13 18:46:22 +010029#include <proto/session.h>
Christopher Faulet51dbc942018-09-13 09:05:15 +020030#include <proto/stream.h>
31#include <proto/stream_interface.h>
Christopher Faulet6b81df72019-10-01 22:08:43 +020032#include <proto/trace.h>
Christopher Faulet51dbc942018-09-13 09:05:15 +020033
34/*
35 * H1 Connection flags (32 bits)
36 */
37#define H1C_F_NONE 0x00000000
38
39/* Flags indicating why writing output data are blocked */
40#define H1C_F_OUT_ALLOC 0x00000001 /* mux is blocked on lack of output buffer */
41#define H1C_F_OUT_FULL 0x00000002 /* mux is blocked on output buffer full */
42/* 0x00000004 - 0x00000008 unused */
43
44/* Flags indicating why reading input data are blocked. */
45#define H1C_F_IN_ALLOC 0x00000010 /* mux is blocked on lack of input buffer */
46#define H1C_F_IN_FULL 0x00000020 /* mux is blocked on input buffer full */
Christopher Faulet7b109f22019-12-05 11:18:31 +010047#define H1C_F_IN_BUSY 0x00000040 /* mux is blocked on input waiting the other side */
Christopher Faulet539e0292018-11-19 10:40:09 +010048/* 0x00000040 - 0x00000800 unused */
Christopher Faulet51dbc942018-09-13 09:05:15 +020049
Christopher Faulet7b109f22019-12-05 11:18:31 +010050/* Flags indicating the connection state */
Christopher Faulet51dbc942018-09-13 09:05:15 +020051#define H1C_F_CS_ERROR 0x00001000 /* connection must be closed ASAP because an error occurred */
52#define H1C_F_CS_SHUTW_NOW 0x00002000 /* connection must be shut down for writes ASAP */
Christopher Faulet7b109f22019-12-05 11:18:31 +010053#define H1C_F_CS_SHUTDOWN 0x00004000 /* connection is shut down */
Christopher Fauletaaa67bc2019-12-05 10:23:37 +010054#define H1C_F_CS_IDLE 0x00008000 /* connection is idle and may be reused
55 * (exclusive to all H1C_F_CS flags and never set when an h1s is attached) */
Christopher Faulet51dbc942018-09-13 09:05:15 +020056
Christopher Fauletf2824e62018-10-01 12:12:37 +020057#define H1C_F_WAIT_NEXT_REQ 0x00010000 /* waiting for the next request to start, use keep-alive timeout */
Christopher Faulet0ef372a2019-04-08 10:57:20 +020058#define H1C_F_UPG_H2C 0x00020000 /* set if an upgrade to h2 should be done */
Christopher Faulet129817b2018-09-20 16:14:40 +020059
Christopher Faulet46230362019-10-17 16:04:20 +020060#define H1C_F_CO_MSG_MORE 0x00040000 /* set if CO_SFL_MSG_MORE must be set when calling xprt->snd_buf() */
61#define H1C_F_CO_STREAMER 0x00080000 /* set if CO_SFL_STREAMER must be set when calling xprt->snd_buf() */
62
Christopher Faulet51dbc942018-09-13 09:05:15 +020063/*
64 * H1 Stream flags (32 bits)
65 */
Christopher Faulet129817b2018-09-20 16:14:40 +020066#define H1S_F_NONE 0x00000000
67#define H1S_F_ERROR 0x00000001 /* An error occurred on the H1 stream */
Christopher Fauletf2824e62018-10-01 12:12:37 +020068#define H1S_F_REQ_ERROR 0x00000002 /* An error occurred during the request parsing/xfer */
69#define H1S_F_RES_ERROR 0x00000004 /* An error occurred during the response parsing/xfer */
Willy Tarreauc493c9c2019-06-03 14:18:22 +020070#define H1S_F_REOS 0x00000008 /* End of input stream seen even if not delivered yet */
Christopher Fauletf2824e62018-10-01 12:12:37 +020071#define H1S_F_WANT_KAL 0x00000010
72#define H1S_F_WANT_TUN 0x00000020
73#define H1S_F_WANT_CLO 0x00000040
74#define H1S_F_WANT_MSK 0x00000070
75#define H1S_F_NOT_FIRST 0x00000080 /* The H1 stream is not the first one */
Christopher Faulet539e0292018-11-19 10:40:09 +010076#define H1S_F_BUF_FLUSH 0x00000100 /* Flush input buffer and don't read more data */
Christopher Fauletd44ad5b2018-11-19 21:52:12 +010077#define H1S_F_SPLICED_DATA 0x00000200 /* Set when the kernel splicing is in used */
Christopher Faulet76014fd2019-12-10 11:47:22 +010078#define H1S_F_PARSING_DONE 0x00000400 /* Set when incoming message parsing is finished (EOM added) */
79/* 0x00000800 .. 0x00001000 unused */
Christopher Faulet72ba6cd2019-09-24 16:20:05 +020080#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 +020081#define H1S_F_HAVE_O_CONN 0x00004000 /* Set during output process to know connection mode was processed */
Christopher Faulet51dbc942018-09-13 09:05:15 +020082
83/* H1 connection descriptor */
Christopher Faulet51dbc942018-09-13 09:05:15 +020084struct h1c {
85 struct connection *conn;
86 struct proxy *px;
87 uint32_t flags; /* Connection flags: H1C_F_* */
88
89 struct buffer ibuf; /* Input buffer to store data before parsing */
90 struct buffer obuf; /* Output buffer to store data after reformatting */
91
92 struct buffer_wait buf_wait; /* Wait list for buffer allocation */
93 struct wait_event wait_event; /* To be used if we're waiting for I/Os */
94
95 struct h1s *h1s; /* H1 stream descriptor */
Christopher Fauletb8093cf2019-01-03 16:27:28 +010096 struct task *task; /* timeout management task */
97 int timeout; /* idle timeout duration in ticks */
98 int shut_timeout; /* idle timeout duration in ticks after stream shutdown */
Christopher Faulet51dbc942018-09-13 09:05:15 +020099};
100
101/* H1 stream descriptor */
102struct h1s {
103 struct h1c *h1c;
104 struct conn_stream *cs;
Christopher Fauletfeb11742018-11-29 15:12:34 +0100105 struct cs_info csinfo; /* CS info, only used for client connections */
106 uint32_t flags; /* Connection flags: H1S_F_* */
Christopher Faulet51dbc942018-09-13 09:05:15 +0200107
Willy Tarreau1b0d4d12020-01-16 11:03:19 +0100108 struct wait_event *subs; /* Address of the wait_event the conn_stream associated is waiting on */
Christopher Faulet129817b2018-09-20 16:14:40 +0200109
Olivier Houchardf502aca2018-12-14 19:42:40 +0100110 struct session *sess; /* Associated session */
Christopher Faulet129817b2018-09-20 16:14:40 +0200111 struct h1m req;
112 struct h1m res;
113
114 enum http_meth_t meth; /* HTTP resquest method */
115 uint16_t status; /* HTTP response status */
Christopher Faulet51dbc942018-09-13 09:05:15 +0200116};
117
Christopher Faulet98fbe952019-07-22 16:18:24 +0200118/* Map of headers used to convert outgoing headers */
119struct h1_hdrs_map {
120 char *name;
121 struct eb_root map;
122};
123
124/* An entry in a headers map */
125struct h1_hdr_entry {
126 struct ist name;
127 struct ebpt_node node;
128};
129
130/* Declare the headers map */
131static struct h1_hdrs_map hdrs_map = { .name = NULL, .map = EB_ROOT };
132
133
Christopher Faulet6b81df72019-10-01 22:08:43 +0200134/* trace source and events */
135static void h1_trace(enum trace_level level, uint64_t mask,
136 const struct trace_source *src,
137 const struct ist where, const struct ist func,
138 const void *a1, const void *a2, const void *a3, const void *a4);
139
140/* The event representation is split like this :
141 * h1c - internal H1 connection
142 * h1s - internal H1 stream
143 * strm - application layer
144 * rx - data receipt
145 * tx - data transmission
146 *
147 */
148static const struct trace_event h1_trace_events[] = {
149#define H1_EV_H1C_NEW (1ULL << 0)
150 { .mask = H1_EV_H1C_NEW, .name = "h1c_new", .desc = "new H1 connection" },
151#define H1_EV_H1C_RECV (1ULL << 1)
152 { .mask = H1_EV_H1C_RECV, .name = "h1c_recv", .desc = "Rx on H1 connection" },
153#define H1_EV_H1C_SEND (1ULL << 2)
154 { .mask = H1_EV_H1C_SEND, .name = "h1c_send", .desc = "Tx on H1 connection" },
155#define H1_EV_H1C_BLK (1ULL << 3)
156 { .mask = H1_EV_H1C_BLK, .name = "h1c_blk", .desc = "H1 connection blocked" },
157#define H1_EV_H1C_WAKE (1ULL << 4)
158 { .mask = H1_EV_H1C_WAKE, .name = "h1c_wake", .desc = "H1 connection woken up" },
159#define H1_EV_H1C_END (1ULL << 5)
160 { .mask = H1_EV_H1C_END, .name = "h1c_end", .desc = "H1 connection terminated" },
161#define H1_EV_H1C_ERR (1ULL << 6)
162 { .mask = H1_EV_H1C_ERR, .name = "h1c_err", .desc = "error on H1 connection" },
163
164#define H1_EV_RX_DATA (1ULL << 7)
165 { .mask = H1_EV_RX_DATA, .name = "rx_data", .desc = "receipt of any H1 data" },
166#define H1_EV_RX_EOI (1ULL << 8)
167 { .mask = H1_EV_RX_EOI, .name = "rx_eoi", .desc = "receipt of end of H1 input" },
168#define H1_EV_RX_HDRS (1ULL << 9)
169 { .mask = H1_EV_RX_HDRS, .name = "rx_headers", .desc = "receipt of H1 headers" },
170#define H1_EV_RX_BODY (1ULL << 10)
171 { .mask = H1_EV_RX_BODY, .name = "rx_body", .desc = "receipt of H1 body" },
172#define H1_EV_RX_TLRS (1ULL << 11)
173 { .mask = H1_EV_RX_TLRS, .name = "rx_trailerus", .desc = "receipt of H1 trailers" },
174
175#define H1_EV_TX_DATA (1ULL << 12)
176 { .mask = H1_EV_TX_DATA, .name = "tx_data", .desc = "transmission of any H1 data" },
177#define H1_EV_TX_EOI (1ULL << 13)
178 { .mask = H1_EV_TX_EOI, .name = "tx_eoi", .desc = "transmission of end of H1 input" },
179#define H1_EV_TX_HDRS (1ULL << 14)
180 { .mask = H1_EV_TX_HDRS, .name = "tx_headers", .desc = "transmission of all headers" },
181#define H1_EV_TX_BODY (1ULL << 15)
182 { .mask = H1_EV_TX_BODY, .name = "tx_body", .desc = "transmission of H1 body" },
183#define H1_EV_TX_TLRS (1ULL << 16)
184 { .mask = H1_EV_TX_TLRS, .name = "tx_trailerus", .desc = "transmission of H1 trailers" },
185
186#define H1_EV_H1S_NEW (1ULL << 17)
187 { .mask = H1_EV_H1S_NEW, .name = "h1s_new", .desc = "new H1 stream" },
188#define H1_EV_H1S_BLK (1ULL << 18)
189 { .mask = H1_EV_H1S_BLK, .name = "h1s_blk", .desc = "H1 stream blocked" },
190#define H1_EV_H1S_END (1ULL << 19)
191 { .mask = H1_EV_H1S_END, .name = "h1s_end", .desc = "H1 stream terminated" },
192#define H1_EV_H1S_ERR (1ULL << 20)
193 { .mask = H1_EV_H1S_ERR, .name = "h1s_err", .desc = "error on H1 stream" },
194
195#define H1_EV_STRM_NEW (1ULL << 21)
196 { .mask = H1_EV_STRM_NEW, .name = "strm_new", .desc = "app-layer stream creation" },
197#define H1_EV_STRM_RECV (1ULL << 22)
198 { .mask = H1_EV_STRM_RECV, .name = "strm_recv", .desc = "receiving data for stream" },
199#define H1_EV_STRM_SEND (1ULL << 23)
200 { .mask = H1_EV_STRM_SEND, .name = "strm_send", .desc = "sending data for stream" },
201#define H1_EV_STRM_WAKE (1ULL << 24)
202 { .mask = H1_EV_STRM_WAKE, .name = "strm_wake", .desc = "stream woken up" },
203#define H1_EV_STRM_SHUT (1ULL << 25)
204 { .mask = H1_EV_STRM_SHUT, .name = "strm_shut", .desc = "stream shutdown" },
205#define H1_EV_STRM_END (1ULL << 26)
206 { .mask = H1_EV_STRM_END, .name = "strm_end", .desc = "detaching app-layer stream" },
207#define H1_EV_STRM_ERR (1ULL << 27)
208 { .mask = H1_EV_STRM_ERR, .name = "strm_err", .desc = "stream error" },
209
210 { }
211};
212
213static const struct name_desc h1_trace_lockon_args[4] = {
214 /* arg1 */ { /* already used by the connection */ },
215 /* arg2 */ { .name="h1s", .desc="H1 stream" },
216 /* arg3 */ { },
217 /* arg4 */ { }
218};
219
220static const struct name_desc h1_trace_decoding[] = {
221#define H1_VERB_CLEAN 1
222 { .name="clean", .desc="only user-friendly stuff, generally suitable for level \"user\"" },
223#define H1_VERB_MINIMAL 2
224 { .name="minimal", .desc="report only h1c/h1s state and flags, no real decoding" },
225#define H1_VERB_SIMPLE 3
226 { .name="simple", .desc="add request/response status line or htx info when available" },
227#define H1_VERB_ADVANCED 4
228 { .name="advanced", .desc="add header fields or frame decoding when available" },
229#define H1_VERB_COMPLETE 5
230 { .name="complete", .desc="add full data dump when available" },
231 { /* end */ }
232};
233
234static struct trace_source trace_h1 = {
235 .name = IST("h1"),
236 .desc = "HTTP/1 multiplexer",
237 .arg_def = TRC_ARG1_CONN, // TRACE()'s first argument is always a connection
238 .default_cb = h1_trace,
239 .known_events = h1_trace_events,
240 .lockon_args = h1_trace_lockon_args,
241 .decoding = h1_trace_decoding,
242 .report_events = ~0, // report everything by default
243};
244
245#define TRACE_SOURCE &trace_h1
246INITCALL1(STG_REGISTER, trace_register_source, TRACE_SOURCE);
247
Christopher Faulet51dbc942018-09-13 09:05:15 +0200248/* the h1c and h1s pools */
Willy Tarreau8ceae722018-11-26 11:58:30 +0100249DECLARE_STATIC_POOL(pool_head_h1c, "h1c", sizeof(struct h1c));
250DECLARE_STATIC_POOL(pool_head_h1s, "h1s", sizeof(struct h1s));
Christopher Faulet51dbc942018-09-13 09:05:15 +0200251
Christopher Faulet51dbc942018-09-13 09:05:15 +0200252static int h1_recv(struct h1c *h1c);
253static int h1_send(struct h1c *h1c);
254static int h1_process(struct h1c *h1c);
255static struct task *h1_io_cb(struct task *t, void *ctx, unsigned short state);
Christopher Faulet666a0c42019-01-08 11:12:04 +0100256static void h1_shutw_conn(struct connection *conn, enum cs_shw_mode mode);
Christopher Fauletb8093cf2019-01-03 16:27:28 +0100257static struct task *h1_timeout_task(struct task *t, void *context, unsigned short state);
Christopher Faulet660f6f32019-10-04 10:22:47 +0200258static void h1_wake_stream_for_recv(struct h1s *h1s);
259static void h1_wake_stream_for_send(struct h1s *h1s);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200260
Christopher Faulet6b81df72019-10-01 22:08:43 +0200261/* the H1 traces always expect that arg1, if non-null, is of type connection
262 * (from which we can derive h1c), that arg2, if non-null, is of type h1s, and
263 * that arg3, if non-null, is a htx for rx/tx headers.
264 */
265static void h1_trace(enum trace_level level, uint64_t mask, const struct trace_source *src,
266 const struct ist where, const struct ist func,
267 const void *a1, const void *a2, const void *a3, const void *a4)
268{
269 const struct connection *conn = a1;
270 const struct h1c *h1c = conn ? conn->ctx : NULL;
271 const struct h1s *h1s = a2;
272 const struct htx *htx = a3;
273 const size_t *val = a4;
274
275 if (!h1c)
276 h1c = (h1s ? h1s->h1c : NULL);
277
278 if (!h1c || src->verbosity < H1_VERB_CLEAN)
279 return;
280
281 /* Display frontend/backend info by default */
282 chunk_appendf(&trace_buf, " : [%c]", (conn_is_back(h1c->conn) ? 'B' : 'F'));
283
284 /* Display request and response states if h1s is defined */
285 if (h1s)
286 chunk_appendf(&trace_buf, " [%s, %s]",
287 h1m_state_str(h1s->req.state), h1m_state_str(h1s->res.state));
288
289 if (src->verbosity == H1_VERB_CLEAN)
290 return;
291
292 /* Display the value to the 4th argument (level > STATE) */
293 if (src->level > TRACE_LEVEL_STATE && val)
Willy Tarreaue18f53e2019-11-27 15:41:31 +0100294 chunk_appendf(&trace_buf, " - VAL=%lu", (long)*val);
Christopher Faulet6b81df72019-10-01 22:08:43 +0200295
296 /* Display status-line if possible (verbosity > MINIMAL) */
297 if (src->verbosity > H1_VERB_MINIMAL && htx && htx_nbblks(htx)) {
298 const struct htx_blk *blk = htx_get_head_blk(htx);
299 const struct htx_sl *sl = htx_get_blk_ptr(htx, blk);
300 enum htx_blk_type type = htx_get_blk_type(blk);
301
302 if (type == HTX_BLK_REQ_SL || type == HTX_BLK_RES_SL)
303 chunk_appendf(&trace_buf, " - \"%.*s %.*s %.*s\"",
304 HTX_SL_P1_LEN(sl), HTX_SL_P1_PTR(sl),
305 HTX_SL_P2_LEN(sl), HTX_SL_P2_PTR(sl),
306 HTX_SL_P3_LEN(sl), HTX_SL_P3_PTR(sl));
307 }
308
309 /* Display h1c info and, if defined, h1s info (pointer + flags) */
310 chunk_appendf(&trace_buf, " - h1c=%p(0x%08x)", h1c, h1c->flags);
311 if (h1s)
312 chunk_appendf(&trace_buf, " h1s=%p(0x%08x)", h1s, h1s->flags);
313
314 if (src->verbosity == H1_VERB_MINIMAL)
315 return;
316
317 /* Display input and output buffer info (level > USER & verbosity > SIMPLE) */
318 if (src->level > TRACE_LEVEL_USER) {
319 if (src->verbosity == H1_VERB_COMPLETE ||
320 (src->verbosity == H1_VERB_ADVANCED && (mask & (H1_EV_H1C_RECV|H1_EV_STRM_RECV))))
321 chunk_appendf(&trace_buf, " ibuf=%u@%p+%u/%u",
322 (unsigned int)b_data(&h1c->ibuf), b_orig(&h1c->ibuf),
323 (unsigned int)b_head_ofs(&h1c->ibuf), (unsigned int)b_size(&h1c->ibuf));
324 if (src->verbosity == H1_VERB_COMPLETE ||
325 (src->verbosity == H1_VERB_ADVANCED && (mask & (H1_EV_H1C_SEND|H1_EV_STRM_SEND))))
326 chunk_appendf(&trace_buf, " obuf=%u@%p+%u/%u",
327 (unsigned int)b_data(&h1c->obuf), b_orig(&h1c->obuf),
328 (unsigned int)b_head_ofs(&h1c->obuf), (unsigned int)b_size(&h1c->obuf));
329 }
330
331 /* Display htx info if defined (level > USER) */
332 if (src->level > TRACE_LEVEL_USER && htx) {
333 int full = 0;
334
335 /* Full htx info (level > STATE && verbosity > SIMPLE) */
336 if (src->level > TRACE_LEVEL_STATE) {
337 if (src->verbosity == H1_VERB_COMPLETE)
338 full = 1;
339 else if (src->verbosity == H1_VERB_ADVANCED && (mask & (H1_EV_RX_HDRS|H1_EV_TX_HDRS)))
340 full = 1;
341 }
342
343 chunk_memcat(&trace_buf, "\n\t", 2);
344 htx_dump(&trace_buf, htx, full);
345 }
346}
347
348
Christopher Faulet51dbc942018-09-13 09:05:15 +0200349/*****************************************************/
350/* functions below are for dynamic buffer management */
351/*****************************************************/
352/*
Christopher Faulet2545a0b2019-12-05 12:30:55 +0100353 * Indicates whether or not we may receive data. The rules are the following :
354 * - if an error or a shutdown for reads was detected on the connection we
355 must not attempt to receive
356 * - if the input buffer failed to be allocated or is full , we must not try
357 * to receive
358 * - if he input processing is busy waiting for the output side, we may
359 * attemp to receive
Christopher Faulet51dbc942018-09-13 09:05:15 +0200360 * - otherwise must may not attempt to receive
361 */
362static inline int h1_recv_allowed(const struct h1c *h1c)
363{
Christopher Faulet2545a0b2019-12-05 12:30:55 +0100364 if (h1c->flags & H1C_F_CS_ERROR) {
365 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 +0200366 return 0;
Christopher Faulet6b81df72019-10-01 22:08:43 +0200367 }
Christopher Faulet51dbc942018-09-13 09:05:15 +0200368
Christopher Faulet2545a0b2019-12-05 12:30:55 +0100369 if (h1c->conn->flags & (CO_FL_ERROR|CO_FL_SOCK_RD_SH)) {
Christopher Faulet6b81df72019-10-01 22:08:43 +0200370 TRACE_DEVEL("recv not allowed because of (error|read0) on connection", H1_EV_H1C_RECV|H1_EV_H1C_BLK, h1c->conn);
Christopher Fauletcf56b992018-12-11 16:12:31 +0100371 return 0;
Christopher Faulet6b81df72019-10-01 22:08:43 +0200372 }
Christopher Fauletcf56b992018-12-11 16:12:31 +0100373
Christopher Fauletcb55f482018-12-10 11:56:47 +0100374 if (!(h1c->flags & (H1C_F_IN_ALLOC|H1C_F_IN_FULL|H1C_F_IN_BUSY)))
Christopher Faulet51dbc942018-09-13 09:05:15 +0200375 return 1;
376
Christopher Faulet6b81df72019-10-01 22:08:43 +0200377 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 +0200378 return 0;
379}
380
381/*
382 * Tries to grab a buffer and to re-enables processing on mux <target>. The h1
383 * flags are used to figure what buffer was requested. It returns 1 if the
384 * allocation succeeds, in which case the connection is woken up, or 0 if it's
385 * impossible to wake up and we prefer to be woken up later.
386 */
387static int h1_buf_available(void *target)
388{
389 struct h1c *h1c = target;
390
391 if ((h1c->flags & H1C_F_IN_ALLOC) && b_alloc_margin(&h1c->ibuf, 0)) {
Christopher Faulet6b81df72019-10-01 22:08:43 +0200392 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 +0200393 h1c->flags &= ~H1C_F_IN_ALLOC;
394 if (h1_recv_allowed(h1c))
Willy Tarreau3c39a7d2019-06-14 14:42:29 +0200395 tasklet_wakeup(h1c->wait_event.tasklet);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200396 return 1;
397 }
398
399 if ((h1c->flags & H1C_F_OUT_ALLOC) && b_alloc_margin(&h1c->obuf, 0)) {
Christopher Faulet6b81df72019-10-01 22:08:43 +0200400 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 +0200401 h1c->flags &= ~H1C_F_OUT_ALLOC;
Willy Tarreau3c39a7d2019-06-14 14:42:29 +0200402 tasklet_wakeup(h1c->wait_event.tasklet);
Christopher Faulet660f6f32019-10-04 10:22:47 +0200403 if (h1c->h1s)
404 h1_wake_stream_for_send(h1c->h1s);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200405 return 1;
406 }
407
Christopher Faulet51dbc942018-09-13 09:05:15 +0200408 return 0;
409}
410
411/*
412 * Allocate a buffer. If if fails, it adds the mux in buffer wait queue.
413 */
414static inline struct buffer *h1_get_buf(struct h1c *h1c, struct buffer *bptr)
415{
416 struct buffer *buf = NULL;
417
Willy Tarreau21046592020-02-26 10:39:36 +0100418 if (likely(!MT_LIST_ADDED(&h1c->buf_wait.list)) &&
Christopher Faulet51dbc942018-09-13 09:05:15 +0200419 unlikely((buf = b_alloc_margin(bptr, 0)) == NULL)) {
420 h1c->buf_wait.target = h1c;
421 h1c->buf_wait.wakeup_cb = h1_buf_available;
Willy Tarreau21046592020-02-26 10:39:36 +0100422 MT_LIST_ADDQ(&buffer_wq, &h1c->buf_wait.list);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200423 }
424 return buf;
425}
426
427/*
428 * Release a buffer, if any, and try to wake up entities waiting in the buffer
429 * wait queue.
430 */
431static inline void h1_release_buf(struct h1c *h1c, struct buffer *bptr)
432{
433 if (bptr->size) {
434 b_free(bptr);
435 offer_buffers(h1c->buf_wait.target, tasks_run_queue);
436 }
437}
438
Christopher Fauletaaa67bc2019-12-05 10:23:37 +0100439/* returns the number of streams in use on a connection to figure if it's idle
440 * or not. We rely on H1C_F_CS_IDLE to know if the connection is in-use or
441 * not. This flag is only set when no H1S is attached and when the previous
442 * stream, if any, was fully terminated without any error and in K/A mode.
Willy Tarreau00f18a32019-01-26 12:19:01 +0100443 */
444static int h1_used_streams(struct connection *conn)
Christopher Faulet51dbc942018-09-13 09:05:15 +0200445{
Willy Tarreau3d2ee552018-12-19 14:12:10 +0100446 struct h1c *h1c = conn->ctx;
Christopher Faulet51dbc942018-09-13 09:05:15 +0200447
Christopher Fauletaaa67bc2019-12-05 10:23:37 +0100448 return ((h1c->flags & H1C_F_CS_IDLE) ? 0 : 1);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200449}
450
Willy Tarreau00f18a32019-01-26 12:19:01 +0100451/* returns the number of streams still available on a connection */
452static int h1_avail_streams(struct connection *conn)
Olivier Houchard8defe4b2018-12-02 01:31:17 +0100453{
Willy Tarreau00f18a32019-01-26 12:19:01 +0100454 return 1 - h1_used_streams(conn);
Olivier Houchard8defe4b2018-12-02 01:31:17 +0100455}
Christopher Faulet51dbc942018-09-13 09:05:15 +0200456
Willy Tarreau00f18a32019-01-26 12:19:01 +0100457
Christopher Faulet51dbc942018-09-13 09:05:15 +0200458/*****************************************************************/
459/* functions below are dedicated to the mux setup and management */
460/*****************************************************************/
Willy Tarreaufbdf90a2019-06-03 13:42:54 +0200461
462/* returns non-zero if there are input data pending for stream h1s. */
463static inline size_t h1s_data_pending(const struct h1s *h1s)
464{
465 const struct h1m *h1m;
466
467 h1m = conn_is_back(h1s->h1c->conn) ? &h1s->res : &h1s->req;
468 if (h1m->state == H1_MSG_DONE)
Christopher Faulet76014fd2019-12-10 11:47:22 +0100469 return !(h1s->flags & H1S_F_PARSING_DONE);
Willy Tarreaufbdf90a2019-06-03 13:42:54 +0200470
471 return b_data(&h1s->h1c->ibuf);
472}
473
Christopher Faulet47365272018-10-31 17:40:50 +0100474static struct conn_stream *h1s_new_cs(struct h1s *h1s)
475{
476 struct conn_stream *cs;
477
Christopher Faulet6b81df72019-10-01 22:08:43 +0200478 TRACE_ENTER(H1_EV_STRM_NEW, h1s->h1c->conn, h1s);
Christopher Faulet47365272018-10-31 17:40:50 +0100479 cs = cs_new(h1s->h1c->conn);
Christopher Faulet6b81df72019-10-01 22:08:43 +0200480 if (!cs) {
481 TRACE_DEVEL("leaving on 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 +0100482 goto err;
Christopher Faulet6b81df72019-10-01 22:08:43 +0200483 }
Christopher Faulet47365272018-10-31 17:40:50 +0100484 h1s->cs = cs;
485 cs->ctx = h1s;
486
487 if (h1s->flags & H1S_F_NOT_FIRST)
488 cs->flags |= CS_FL_NOT_FIRST;
489
Willy Tarreau17ccd1a2020-01-17 16:19:34 +0100490 if (global.tune.options & GTUNE_USE_SPLICE)
491 cs->flags |= CS_FL_MAY_SPLICE;
492
Christopher Faulet6b81df72019-10-01 22:08:43 +0200493 if (stream_create_from_cs(cs) < 0) {
494 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 +0100495 goto err;
Christopher Faulet6b81df72019-10-01 22:08:43 +0200496 }
497
498 TRACE_LEAVE(H1_EV_STRM_NEW, h1s->h1c->conn, h1s);
Christopher Faulet47365272018-10-31 17:40:50 +0100499 return cs;
500
501 err:
502 cs_free(cs);
503 h1s->cs = NULL;
504 return NULL;
505}
506
Olivier Houchardf502aca2018-12-14 19:42:40 +0100507static struct h1s *h1s_create(struct h1c *h1c, struct conn_stream *cs, struct session *sess)
Christopher Faulet51dbc942018-09-13 09:05:15 +0200508{
509 struct h1s *h1s;
510
Christopher Faulet6b81df72019-10-01 22:08:43 +0200511 TRACE_ENTER(H1_EV_H1S_NEW, h1c->conn);
512
Christopher Faulet51dbc942018-09-13 09:05:15 +0200513 h1s = pool_alloc(pool_head_h1s);
514 if (!h1s)
Christopher Faulet47365272018-10-31 17:40:50 +0100515 goto fail;
Christopher Faulet51dbc942018-09-13 09:05:15 +0200516
517 h1s->h1c = h1c;
518 h1c->h1s = h1s;
519
Olivier Houchardf502aca2018-12-14 19:42:40 +0100520 h1s->sess = sess;
521
Christopher Faulet51dbc942018-09-13 09:05:15 +0200522 h1s->cs = NULL;
Christopher Fauletb992af02019-03-28 15:42:24 +0100523 h1s->flags = H1S_F_WANT_KAL;
Christopher Faulet51dbc942018-09-13 09:05:15 +0200524
Willy Tarreau1b0d4d12020-01-16 11:03:19 +0100525 h1s->subs = NULL;
Christopher Faulet129817b2018-09-20 16:14:40 +0200526
527 h1m_init_req(&h1s->req);
Christopher Fauletb992af02019-03-28 15:42:24 +0100528 h1s->req.flags |= (H1_MF_NO_PHDR|H1_MF_CLEAN_CONN_HDR);
Christopher Faulet9768c262018-10-22 09:34:31 +0200529
Christopher Faulet129817b2018-09-20 16:14:40 +0200530 h1m_init_res(&h1s->res);
Christopher Fauletb992af02019-03-28 15:42:24 +0100531 h1s->res.flags |= (H1_MF_NO_PHDR|H1_MF_CLEAN_CONN_HDR);
Christopher Faulet129817b2018-09-20 16:14:40 +0200532
533 h1s->status = 0;
534 h1s->meth = HTTP_METH_OTHER;
535
Christopher Faulet47365272018-10-31 17:40:50 +0100536 if (h1c->flags & H1C_F_WAIT_NEXT_REQ)
537 h1s->flags |= H1S_F_NOT_FIRST;
Christopher Fauletaaa67bc2019-12-05 10:23:37 +0100538 h1c->flags &= ~(H1C_F_CS_IDLE|H1C_F_WAIT_NEXT_REQ);
Christopher Faulet47365272018-10-31 17:40:50 +0100539
Christopher Faulet129817b2018-09-20 16:14:40 +0200540 if (!conn_is_back(h1c->conn)) {
541 if (h1c->px->options2 & PR_O2_REQBUG_OK)
542 h1s->req.err_pos = -1;
Christopher Faulete9b70722019-04-08 10:46:02 +0200543
544 /* For frontend connections we should always have a session */
545 if (!sess)
546 sess = h1c->conn->owner;
547
Dave Pirotte234740f2019-07-10 13:57:38 +0000548 /* Timers for subsequent sessions on the same HTTP 1.x connection
549 * measure from `now`, not from the connection accept time */
550 if (h1s->flags & H1S_F_NOT_FIRST) {
551 h1s->csinfo.create_date = date;
552 h1s->csinfo.tv_create = now;
553 h1s->csinfo.t_handshake = 0;
554 h1s->csinfo.t_idle = -1;
555 }
556 else {
557 h1s->csinfo.create_date = sess->accept_date;
558 h1s->csinfo.tv_create = sess->tv_accept;
559 h1s->csinfo.t_handshake = sess->t_handshake;
560 h1s->csinfo.t_idle = -1;
561 }
Christopher Faulet129817b2018-09-20 16:14:40 +0200562 }
563 else {
564 if (h1c->px->options2 & PR_O2_RSPBUG_OK)
565 h1s->res.err_pos = -1;
Christopher Fauletf2824e62018-10-01 12:12:37 +0200566
Christopher Fauletfeb11742018-11-29 15:12:34 +0100567 h1s->csinfo.create_date = date;
568 h1s->csinfo.tv_create = now;
569 h1s->csinfo.t_handshake = 0;
570 h1s->csinfo.t_idle = -1;
Christopher Faulete9b70722019-04-08 10:46:02 +0200571 }
Christopher Fauletfeb11742018-11-29 15:12:34 +0100572
Christopher Faulete9b70722019-04-08 10:46:02 +0200573 /* If a conn_stream already exists, attach it to this H1S. Otherwise we
574 * create a new one.
575 */
576 if (cs) {
Christopher Fauletf2824e62018-10-01 12:12:37 +0200577 cs->ctx = h1s;
578 h1s->cs = cs;
579 }
Christopher Faulet47365272018-10-31 17:40:50 +0100580 else {
581 cs = h1s_new_cs(h1s);
582 if (!cs)
583 goto fail;
584 }
Christopher Faulet6b81df72019-10-01 22:08:43 +0200585 TRACE_LEAVE(H1_EV_H1S_NEW, h1c->conn, h1s);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200586 return h1s;
Christopher Faulet47365272018-10-31 17:40:50 +0100587
588 fail:
589 pool_free(pool_head_h1s, h1s);
Christopher Faulet6b81df72019-10-01 22:08:43 +0200590 TRACE_DEVEL("leaving in error", H1_EV_H1S_NEW|H1_EV_H1S_END|H1_EV_H1S_ERR, h1c->conn);
Christopher Faulet47365272018-10-31 17:40:50 +0100591 return NULL;
Christopher Faulet51dbc942018-09-13 09:05:15 +0200592}
593
594static void h1s_destroy(struct h1s *h1s)
595{
Christopher Fauletf2824e62018-10-01 12:12:37 +0200596 if (h1s) {
597 struct h1c *h1c = h1s->h1c;
Christopher Faulet51dbc942018-09-13 09:05:15 +0200598
Christopher Faulet6b81df72019-10-01 22:08:43 +0200599 TRACE_POINT(H1_EV_H1S_END, h1c->conn, h1s);
Christopher Fauletf2824e62018-10-01 12:12:37 +0200600 h1c->h1s = NULL;
Christopher Faulet51dbc942018-09-13 09:05:15 +0200601
Willy Tarreau1b0d4d12020-01-16 11:03:19 +0100602 if (h1s->subs)
603 h1s->subs->events = 0;
Christopher Fauletf2824e62018-10-01 12:12:37 +0200604
Christopher Fauletcb55f482018-12-10 11:56:47 +0100605 h1c->flags &= ~H1C_F_IN_BUSY;
Christopher Faulet6b81df72019-10-01 22:08:43 +0200606 if (h1s->flags & (H1S_F_REQ_ERROR|H1S_F_RES_ERROR)) {
Christopher Faulet47365272018-10-31 17:40:50 +0100607 h1c->flags |= H1C_F_CS_ERROR;
Christopher Faulet6b81df72019-10-01 22:08:43 +0200608 TRACE_STATE("h1s on error, set error on h1c", H1_EV_H1C_ERR, h1c->conn, h1s);
609 }
Christopher Fauletaaa67bc2019-12-05 10:23:37 +0100610
611 if (!(h1c->flags & (H1C_F_CS_ERROR|H1C_F_CS_SHUTW_NOW|H1C_F_CS_SHUTDOWN)) && /* No error/shutdown on h1c */
612 !(h1c->conn->flags & (CO_FL_ERROR|CO_FL_SOCK_RD_SH|CO_FL_SOCK_WR_SH)) && /* No error/shutdown on conn */
Christopher Faulet76014fd2019-12-10 11:47:22 +0100613 (h1s->flags & (H1S_F_WANT_KAL|H1S_F_PARSING_DONE)) == (H1S_F_WANT_KAL|H1S_F_PARSING_DONE) && /* K/A possible */
Christopher Fauletaaa67bc2019-12-05 10:23:37 +0100614 h1s->req.state == H1_MSG_DONE && h1s->res.state == H1_MSG_DONE) { /* req/res in DONE state */
615 h1c->flags |= (H1C_F_CS_IDLE|H1C_F_WAIT_NEXT_REQ);
616 TRACE_STATE("set idle mode on h1c, waiting for the next request", H1_EV_H1C_ERR, h1c->conn, h1s);
617 }
Christopher Fauletf2824e62018-10-01 12:12:37 +0200618 pool_free(pool_head_h1s, h1s);
619 }
Christopher Faulet51dbc942018-09-13 09:05:15 +0200620}
621
Christopher Fauletfeb11742018-11-29 15:12:34 +0100622static const struct cs_info *h1_get_cs_info(struct conn_stream *cs)
623{
624 struct h1s *h1s = cs->ctx;
625
626 if (h1s && !conn_is_back(cs->conn))
627 return &h1s->csinfo;
628 return NULL;
629}
630
Christopher Faulet51dbc942018-09-13 09:05:15 +0200631/*
Christopher Faulet51f73eb2019-04-08 11:22:47 +0200632 * Initialize the mux once it's attached. It is expected that conn->ctx points
633 * to the existing conn_stream (for outgoing connections or for incoming onces
634 * during a mux upgrade) or NULL (for incoming ones during the connexion
635 * establishment). <input> is always used as Input buffer and may contain
636 * data. It is the caller responsibility to not reuse it anymore. Returns < 0 on
637 * error.
Christopher Faulet51dbc942018-09-13 09:05:15 +0200638 */
Christopher Faulet51f73eb2019-04-08 11:22:47 +0200639static int h1_init(struct connection *conn, struct proxy *proxy, struct session *sess,
640 struct buffer *input)
Christopher Faulet51dbc942018-09-13 09:05:15 +0200641{
Christopher Faulet51dbc942018-09-13 09:05:15 +0200642 struct h1c *h1c;
Christopher Fauletb8093cf2019-01-03 16:27:28 +0100643 struct task *t = NULL;
Christopher Faulet6b81df72019-10-01 22:08:43 +0200644 void *conn_ctx = conn->ctx;
645
646 TRACE_ENTER(H1_EV_H1C_NEW);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200647
648 h1c = pool_alloc(pool_head_h1c);
649 if (!h1c)
650 goto fail_h1c;
651 h1c->conn = conn;
652 h1c->px = proxy;
653
Christopher Fauletaaa67bc2019-12-05 10:23:37 +0100654 h1c->flags = H1C_F_CS_IDLE;
Christopher Faulet51f73eb2019-04-08 11:22:47 +0200655 h1c->ibuf = *input;
Christopher Faulet51dbc942018-09-13 09:05:15 +0200656 h1c->obuf = BUF_NULL;
657 h1c->h1s = NULL;
Christopher Faulet51f73eb2019-04-08 11:22:47 +0200658 h1c->task = NULL;
Christopher Faulet51dbc942018-09-13 09:05:15 +0200659
Willy Tarreau21046592020-02-26 10:39:36 +0100660 MT_LIST_INIT(&h1c->buf_wait.list);
Willy Tarreau3c39a7d2019-06-14 14:42:29 +0200661 h1c->wait_event.tasklet = tasklet_new();
662 if (!h1c->wait_event.tasklet)
Christopher Faulet51dbc942018-09-13 09:05:15 +0200663 goto fail;
Willy Tarreau3c39a7d2019-06-14 14:42:29 +0200664 h1c->wait_event.tasklet->process = h1_io_cb;
665 h1c->wait_event.tasklet->context = h1c;
Willy Tarreau4f6516d2018-12-19 13:59:17 +0100666 h1c->wait_event.events = 0;
Christopher Faulet51dbc942018-09-13 09:05:15 +0200667
Christopher Faulete9b70722019-04-08 10:46:02 +0200668 if (conn_is_back(conn)) {
Christopher Fauletb8093cf2019-01-03 16:27:28 +0100669 h1c->shut_timeout = h1c->timeout = proxy->timeout.server;
670 if (tick_isset(proxy->timeout.serverfin))
671 h1c->shut_timeout = proxy->timeout.serverfin;
672 } else {
673 h1c->shut_timeout = h1c->timeout = proxy->timeout.client;
674 if (tick_isset(proxy->timeout.clientfin))
675 h1c->shut_timeout = proxy->timeout.clientfin;
676 }
677 if (tick_isset(h1c->timeout)) {
678 t = task_new(tid_bit);
679 if (!t)
680 goto fail;
681
682 h1c->task = t;
683 t->process = h1_timeout_task;
684 t->context = h1c;
685 t->expire = tick_add(now_ms, h1c->timeout);
686 }
687
Willy Tarreau3d2ee552018-12-19 14:12:10 +0100688 conn->ctx = h1c;
Christopher Faulet129817b2018-09-20 16:14:40 +0200689
Christopher Faulet6b81df72019-10-01 22:08:43 +0200690 /* Always Create a new H1S */
691 if (!h1s_create(h1c, conn_ctx, sess))
692 goto fail;
Christopher Fauletb8093cf2019-01-03 16:27:28 +0100693
694 if (t)
695 task_queue(t);
696
Christopher Faulet51dbc942018-09-13 09:05:15 +0200697 /* Try to read, if nothing is available yet we'll just subscribe */
Willy Tarreau2c1f37d2020-03-04 17:50:02 +0100698 h1c->conn->xprt->subscribe(h1c->conn, h1c->conn->xprt_ctx, SUB_RETRY_RECV, &h1c->wait_event);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200699
700 /* mux->wake will be called soon to complete the operation */
Christopher Faulet6b81df72019-10-01 22:08:43 +0200701 TRACE_LEAVE(H1_EV_H1C_NEW, conn, h1c->h1s);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200702 return 0;
703
704 fail:
Willy Tarreauf6562792019-05-07 19:05:35 +0200705 task_destroy(t);
Willy Tarreau3c39a7d2019-06-14 14:42:29 +0200706 if (h1c->wait_event.tasklet)
707 tasklet_free(h1c->wait_event.tasklet);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200708 pool_free(pool_head_h1c, h1c);
709 fail_h1c:
Christopher Faulet6b81df72019-10-01 22:08:43 +0200710 conn->ctx = conn_ctx; // restore saved context
711 TRACE_DEVEL("leaving in error", H1_EV_H1C_NEW|H1_EV_H1C_END|H1_EV_H1C_ERR);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200712 return -1;
713}
714
Christopher Faulet73c12072019-04-08 11:23:22 +0200715/* release function. This one should be called to free all resources allocated
716 * to the mux.
Christopher Faulet51dbc942018-09-13 09:05:15 +0200717 */
Christopher Faulet73c12072019-04-08 11:23:22 +0200718static void h1_release(struct h1c *h1c)
Christopher Faulet51dbc942018-09-13 09:05:15 +0200719{
Christopher Faulet61840e72019-04-15 09:33:32 +0200720 struct connection *conn = NULL;
Christopher Faulet39a96ee2019-04-08 10:52:21 +0200721
Christopher Faulet6b81df72019-10-01 22:08:43 +0200722 TRACE_POINT(H1_EV_H1C_END);
723
Christopher Faulet51dbc942018-09-13 09:05:15 +0200724 if (h1c) {
Christopher Faulet61840e72019-04-15 09:33:32 +0200725 /* The connection must be aattached to this mux to be released */
726 if (h1c->conn && h1c->conn->ctx == h1c)
727 conn = h1c->conn;
728
Christopher Faulet6b81df72019-10-01 22:08:43 +0200729 TRACE_DEVEL("freeing h1c", H1_EV_H1C_END, conn);
730
Christopher Faulet61840e72019-04-15 09:33:32 +0200731 if (conn && h1c->flags & H1C_F_UPG_H2C) {
Christopher Faulet6b81df72019-10-01 22:08:43 +0200732 TRACE_DEVEL("upgrading H1 to H2", H1_EV_H1C_END, conn);
Christopher Faulet0ef372a2019-04-08 10:57:20 +0200733 h1c->flags &= ~H1C_F_UPG_H2C;
Olivier Houchard2ab3dad2019-07-03 13:08:18 +0200734 /* Make sure we're no longer subscribed to anything */
735 if (h1c->wait_event.events)
736 conn->xprt->unsubscribe(conn, conn->xprt_ctx,
737 h1c->wait_event.events, &h1c->wait_event);
Christopher Fauletc985f6c2019-07-15 11:42:52 +0200738 if (conn_upgrade_mux_fe(conn, NULL, &h1c->ibuf, ist("h2"), PROTO_MODE_HTTP) != -1) {
Christopher Faulet0ef372a2019-04-08 10:57:20 +0200739 /* connection successfully upgraded to H2, this
740 * mux was already released */
741 return;
742 }
Christopher Faulet6b81df72019-10-01 22:08:43 +0200743 TRACE_DEVEL("h2 upgrade failed", H1_EV_H1C_END|H1_EV_H1C_ERR, conn);
Christopher Faulet0ef372a2019-04-08 10:57:20 +0200744 sess_log(conn->owner); /* Log if the upgrade failed */
745 }
746
Olivier Houchard45c44372019-06-11 14:06:23 +0200747
Willy Tarreau21046592020-02-26 10:39:36 +0100748 if (MT_LIST_ADDED(&h1c->buf_wait.list))
749 MT_LIST_DEL(&h1c->buf_wait.list);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200750
751 h1_release_buf(h1c, &h1c->ibuf);
752 h1_release_buf(h1c, &h1c->obuf);
753
Christopher Fauletb8093cf2019-01-03 16:27:28 +0100754 if (h1c->task) {
755 h1c->task->context = NULL;
756 task_wakeup(h1c->task, TASK_WOKEN_OTHER);
757 h1c->task = NULL;
758 }
759
Willy Tarreau3c39a7d2019-06-14 14:42:29 +0200760 if (h1c->wait_event.tasklet)
761 tasklet_free(h1c->wait_event.tasklet);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200762
Christopher Fauletf2824e62018-10-01 12:12:37 +0200763 h1s_destroy(h1c->h1s);
Olivier Houchard0e079372019-04-15 17:51:16 +0200764 if (conn && h1c->wait_event.events != 0)
Olivier Houcharde179d0e2019-03-21 18:27:17 +0100765 conn->xprt->unsubscribe(conn, conn->xprt_ctx, h1c->wait_event.events,
Olivier Houchard0e079372019-04-15 17:51:16 +0200766 &h1c->wait_event);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200767 pool_free(pool_head_h1c, h1c);
768 }
769
Christopher Faulet39a96ee2019-04-08 10:52:21 +0200770 if (conn) {
771 conn->mux = NULL;
772 conn->ctx = NULL;
Christopher Faulet6b81df72019-10-01 22:08:43 +0200773 TRACE_DEVEL("freeing conn", H1_EV_H1C_END, conn);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200774
Christopher Faulet39a96ee2019-04-08 10:52:21 +0200775 conn_stop_tracking(conn);
776 conn_full_close(conn);
777 if (conn->destroy_cb)
778 conn->destroy_cb(conn);
779 conn_free(conn);
780 }
Christopher Faulet51dbc942018-09-13 09:05:15 +0200781}
782
783/******************************************************/
784/* functions below are for the H1 protocol processing */
785/******************************************************/
Christopher Faulet9768c262018-10-22 09:34:31 +0200786/* Parse the request version and set H1_MF_VER_11 on <h1m> if the version is
787 * greater or equal to 1.1
Christopher Fauletf2824e62018-10-01 12:12:37 +0200788 */
Christopher Faulet570d1612018-11-26 11:13:57 +0100789static void h1_parse_req_vsn(struct h1m *h1m, const struct htx_sl *sl)
Christopher Fauletf2824e62018-10-01 12:12:37 +0200790{
Christopher Faulet570d1612018-11-26 11:13:57 +0100791 const char *p = HTX_SL_REQ_VPTR(sl);
Christopher Faulet9768c262018-10-22 09:34:31 +0200792
Christopher Faulet570d1612018-11-26 11:13:57 +0100793 if ((HTX_SL_REQ_VLEN(sl) == 8) &&
Christopher Faulet9768c262018-10-22 09:34:31 +0200794 (*(p + 5) > '1' ||
795 (*(p + 5) == '1' && *(p + 7) >= '1')))
796 h1m->flags |= H1_MF_VER_11;
797}
Christopher Fauletf2824e62018-10-01 12:12:37 +0200798
Christopher Faulet9768c262018-10-22 09:34:31 +0200799/* Parse the response version and set H1_MF_VER_11 on <h1m> if the version is
800 * greater or equal to 1.1
801 */
Christopher Faulet570d1612018-11-26 11:13:57 +0100802static void h1_parse_res_vsn(struct h1m *h1m, const struct htx_sl *sl)
Christopher Faulet9768c262018-10-22 09:34:31 +0200803{
Christopher Faulet570d1612018-11-26 11:13:57 +0100804 const char *p = HTX_SL_RES_VPTR(sl);
Christopher Fauletf2824e62018-10-01 12:12:37 +0200805
Christopher Faulet570d1612018-11-26 11:13:57 +0100806 if ((HTX_SL_RES_VLEN(sl) == 8) &&
Christopher Faulet9768c262018-10-22 09:34:31 +0200807 (*(p + 5) > '1' ||
808 (*(p + 5) == '1' && *(p + 7) >= '1')))
809 h1m->flags |= H1_MF_VER_11;
810}
Christopher Fauletf2824e62018-10-01 12:12:37 +0200811
Christopher Fauletf2824e62018-10-01 12:12:37 +0200812/* Deduce the connection mode of the client connection, depending on the
813 * configuration and the H1 message flags. This function is called twice, the
814 * first time when the request is parsed and the second time when the response
815 * is parsed.
816 */
817static void h1_set_cli_conn_mode(struct h1s *h1s, struct h1m *h1m)
818{
819 struct proxy *fe = h1s->h1c->px;
Christopher Fauletf2824e62018-10-01 12:12:37 +0200820
821 if (h1m->flags & H1_MF_RESP) {
Christopher Fauletb992af02019-03-28 15:42:24 +0100822 /* Output direction: second pass */
Christopher Fauletf2824e62018-10-01 12:12:37 +0200823 if ((h1s->meth == HTTP_METH_CONNECT && h1s->status == 200) ||
Christopher Fauletb992af02019-03-28 15:42:24 +0100824 h1s->status == 101) {
825 /* Either we've established an explicit tunnel, or we're
826 * switching the protocol. In both cases, we're very unlikely to
827 * understand the next protocols. We have to switch to tunnel
828 * mode, so that we transfer the request and responses then let
829 * this protocol pass unmodified. When we later implement
830 * specific parsers for such protocols, we'll want to check the
831 * Upgrade header which contains information about that protocol
832 * for responses with status 101 (eg: see RFC2817 about TLS).
833 */
Christopher Fauletf2824e62018-10-01 12:12:37 +0200834 h1s->flags = (h1s->flags & ~H1S_F_WANT_MSK) | H1S_F_WANT_TUN;
Christopher Faulet6b81df72019-10-01 22:08:43 +0200835 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 +0100836 }
837 else if (h1s->flags & H1S_F_WANT_KAL) {
838 /* By default the client is in KAL mode. CLOSE mode mean
839 * it is imposed by the client itself. So only change
840 * KAL mode here. */
841 if (!(h1m->flags & H1_MF_XFER_LEN) || (h1m->flags & H1_MF_CONN_CLO)) {
842 /* no length known or explicit close => close */
843 h1s->flags = (h1s->flags & ~H1S_F_WANT_MSK) | H1S_F_WANT_CLO;
Christopher Faulet6b81df72019-10-01 22:08:43 +0200844 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 +0100845 }
846 else if (!(h1m->flags & H1_MF_CONN_KAL) &&
847 (fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_CLO) {
848 /* no explict keep-alive and option httpclose => close */
849 h1s->flags = (h1s->flags & ~H1S_F_WANT_MSK) | H1S_F_WANT_CLO;
Christopher Faulet6b81df72019-10-01 22:08:43 +0200850 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 +0100851 }
852 }
Christopher Fauletf2824e62018-10-01 12:12:37 +0200853 }
854 else {
Christopher Fauletb992af02019-03-28 15:42:24 +0100855 /* Input direction: first pass */
856 if (!(h1m->flags & (H1_MF_VER_11|H1_MF_CONN_KAL)) || h1m->flags & H1_MF_CONN_CLO) {
857 /* no explicit keep-alive in HTTP/1.0 or explicit close => close*/
Christopher Fauletf2824e62018-10-01 12:12:37 +0200858 h1s->flags = (h1s->flags & ~H1S_F_WANT_MSK) | H1S_F_WANT_CLO;
Christopher Faulet6b81df72019-10-01 22:08:43 +0200859 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 +0100860 }
Christopher Fauletf2824e62018-10-01 12:12:37 +0200861 }
862
863 /* If KAL, check if the frontend is stopping. If yes, switch in CLO mode */
Christopher Faulet6b81df72019-10-01 22:08:43 +0200864 if (h1s->flags & H1S_F_WANT_KAL && fe->state == PR_STSTOPPED) {
Christopher Fauletf2824e62018-10-01 12:12:37 +0200865 h1s->flags = (h1s->flags & ~H1S_F_WANT_MSK) | H1S_F_WANT_CLO;
Christopher Faulet6b81df72019-10-01 22:08:43 +0200866 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);
867 }
Christopher Fauletf2824e62018-10-01 12:12:37 +0200868}
869
870/* Deduce the connection mode of the client connection, depending on the
871 * configuration and the H1 message flags. This function is called twice, the
872 * first time when the request is parsed and the second time when the response
873 * is parsed.
874 */
875static void h1_set_srv_conn_mode(struct h1s *h1s, struct h1m *h1m)
876{
Olivier Houchardf502aca2018-12-14 19:42:40 +0100877 struct session *sess = h1s->sess;
Christopher Fauletb992af02019-03-28 15:42:24 +0100878 struct proxy *be = h1s->h1c->px;
Olivier Houchardf502aca2018-12-14 19:42:40 +0100879 int fe_flags = sess ? sess->fe->options : 0;
Christopher Fauletf2824e62018-10-01 12:12:37 +0200880
Christopher Fauletf2824e62018-10-01 12:12:37 +0200881 if (h1m->flags & H1_MF_RESP) {
Christopher Fauletb992af02019-03-28 15:42:24 +0100882 /* Input direction: second pass */
Christopher Fauletf2824e62018-10-01 12:12:37 +0200883 if ((h1s->meth == HTTP_METH_CONNECT && h1s->status == 200) ||
Christopher Fauletb992af02019-03-28 15:42:24 +0100884 h1s->status == 101) {
885 /* Either we've established an explicit tunnel, or we're
886 * switching the protocol. In both cases, we're very unlikely to
887 * understand the next protocols. We have to switch to tunnel
888 * mode, so that we transfer the request and responses then let
889 * this protocol pass unmodified. When we later implement
890 * specific parsers for such protocols, we'll want to check the
891 * Upgrade header which contains information about that protocol
892 * for responses with status 101 (eg: see RFC2817 about TLS).
893 */
Christopher Fauletf2824e62018-10-01 12:12:37 +0200894 h1s->flags = (h1s->flags & ~H1S_F_WANT_MSK) | H1S_F_WANT_TUN;
Christopher Faulet6b81df72019-10-01 22:08:43 +0200895 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 +0100896 }
897 else if (h1s->flags & H1S_F_WANT_KAL) {
898 /* By default the server is in KAL mode. CLOSE mode mean
899 * it is imposed by haproxy itself. So only change KAL
900 * mode here. */
901 if (!(h1m->flags & H1_MF_XFER_LEN) || h1m->flags & H1_MF_CONN_CLO ||
902 !(h1m->flags & (H1_MF_VER_11|H1_MF_CONN_KAL))){
903 /* no length known or explicit close or no explicit keep-alive in HTTP/1.0 => close */
904 h1s->flags = (h1s->flags & ~H1S_F_WANT_MSK) | H1S_F_WANT_CLO;
Christopher Faulet6b81df72019-10-01 22:08:43 +0200905 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 +0100906 }
907 }
Christopher Fauletf2824e62018-10-01 12:12:37 +0200908 }
Christopher Faulet70033782018-12-05 13:50:11 +0100909 else {
Christopher Fauletb992af02019-03-28 15:42:24 +0100910 /* Output direction: first pass */
911 if (h1m->flags & H1_MF_CONN_CLO) {
912 /* explicit close => close */
Christopher Faulet70033782018-12-05 13:50:11 +0100913 h1s->flags = (h1s->flags & ~H1S_F_WANT_MSK) | H1S_F_WANT_CLO;
Christopher Faulet6b81df72019-10-01 22:08:43 +0200914 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 +0100915 }
916 else if (!(h1m->flags & H1_MF_CONN_KAL) &&
917 ((fe_flags & PR_O_HTTP_MODE) == PR_O_HTTP_SCL ||
918 (be->options & PR_O_HTTP_MODE) == PR_O_HTTP_SCL ||
919 (fe_flags & PR_O_HTTP_MODE) == PR_O_HTTP_CLO ||
920 (be->options & PR_O_HTTP_MODE) == PR_O_HTTP_CLO)) {
921 /* no explicit keep-alive option httpclose/server-close => close */
922 h1s->flags = (h1s->flags & ~H1S_F_WANT_MSK) | H1S_F_WANT_CLO;
Christopher Faulet6b81df72019-10-01 22:08:43 +0200923 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 +0100924 }
Christopher Faulet70033782018-12-05 13:50:11 +0100925 }
Christopher Fauletf2824e62018-10-01 12:12:37 +0200926
927 /* If KAL, check if the backend is stopping. If yes, switch in CLO mode */
Christopher Faulet6b81df72019-10-01 22:08:43 +0200928 if (h1s->flags & H1S_F_WANT_KAL && be->state == PR_STSTOPPED) {
Christopher Fauletf2824e62018-10-01 12:12:37 +0200929 h1s->flags = (h1s->flags & ~H1S_F_WANT_MSK) | H1S_F_WANT_CLO;
Christopher Faulet6b81df72019-10-01 22:08:43 +0200930 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);
931 }
Christopher Fauletf2824e62018-10-01 12:12:37 +0200932}
933
Christopher Fauletb992af02019-03-28 15:42:24 +0100934static void h1_update_req_conn_value(struct h1s *h1s, struct h1m *h1m, struct ist *conn_val)
Christopher Fauletf2824e62018-10-01 12:12:37 +0200935{
936 struct proxy *px = h1s->h1c->px;
Christopher Fauletf2824e62018-10-01 12:12:37 +0200937
938 /* Don't update "Connection:" header in TUNNEL mode or if "Upgrage"
939 * token is found
940 */
941 if (h1s->flags & H1S_F_WANT_TUN || h1m->flags & H1_MF_CONN_UPG)
Christopher Faulet9768c262018-10-22 09:34:31 +0200942 return;
Christopher Fauletf2824e62018-10-01 12:12:37 +0200943
944 if (h1s->flags & H1S_F_WANT_KAL || px->options2 & PR_O2_FAKE_KA) {
Christopher Faulet6b81df72019-10-01 22:08:43 +0200945 if (!(h1m->flags & H1_MF_VER_11)) {
946 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 +0100947 *conn_val = ist("keep-alive");
Christopher Faulet6b81df72019-10-01 22:08:43 +0200948 }
Christopher Fauletf2824e62018-10-01 12:12:37 +0200949 }
950 else { /* H1S_F_WANT_CLO && !PR_O2_FAKE_KA */
Christopher Faulet6b81df72019-10-01 22:08:43 +0200951 if (h1m->flags & H1_MF_VER_11) {
952 TRACE_STATE("add \"Connection: close\"", H1_EV_TX_DATA|H1_EV_TX_HDRS, h1s->h1c->conn, h1s);
Christopher Fauletb992af02019-03-28 15:42:24 +0100953 *conn_val = ist("close");
Christopher Faulet6b81df72019-10-01 22:08:43 +0200954 }
Christopher Fauletf2824e62018-10-01 12:12:37 +0200955 }
Christopher Fauletf2824e62018-10-01 12:12:37 +0200956}
957
Christopher Fauletb992af02019-03-28 15:42:24 +0100958static void h1_update_res_conn_value(struct h1s *h1s, struct h1m *h1m, struct ist *conn_val)
Christopher Fauletf2824e62018-10-01 12:12:37 +0200959{
Christopher Fauletf2824e62018-10-01 12:12:37 +0200960 /* Don't update "Connection:" header in TUNNEL mode or if "Upgrage"
961 * token is found
962 */
963 if (h1s->flags & H1S_F_WANT_TUN || h1m->flags & H1_MF_CONN_UPG)
Christopher Faulet9768c262018-10-22 09:34:31 +0200964 return;
Christopher Fauletf2824e62018-10-01 12:12:37 +0200965
966 if (h1s->flags & H1S_F_WANT_KAL) {
Christopher Fauletb992af02019-03-28 15:42:24 +0100967 if (!(h1m->flags & H1_MF_VER_11) ||
Christopher Faulet6b81df72019-10-01 22:08:43 +0200968 !((h1m->flags & h1s->req.flags) & H1_MF_VER_11)) {
969 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 +0100970 *conn_val = ist("keep-alive");
Christopher Faulet6b81df72019-10-01 22:08:43 +0200971 }
Christopher Fauletf2824e62018-10-01 12:12:37 +0200972 }
973 else { /* H1S_F_WANT_CLO */
Christopher Faulet6b81df72019-10-01 22:08:43 +0200974 if (h1m->flags & H1_MF_VER_11) {
975 TRACE_STATE("add \"Connection: close\"", H1_EV_TX_DATA|H1_EV_TX_HDRS, h1s->h1c->conn, h1s);
Christopher Fauletb992af02019-03-28 15:42:24 +0100976 *conn_val = ist("close");
Christopher Faulet6b81df72019-10-01 22:08:43 +0200977 }
Christopher Fauletf2824e62018-10-01 12:12:37 +0200978 }
Christopher Faulet9768c262018-10-22 09:34:31 +0200979}
Christopher Fauletf2824e62018-10-01 12:12:37 +0200980
Christopher Fauletb992af02019-03-28 15:42:24 +0100981static void h1_process_input_conn_mode(struct h1s *h1s, struct h1m *h1m, struct htx *htx)
Christopher Faulet9768c262018-10-22 09:34:31 +0200982{
Christopher Fauletb992af02019-03-28 15:42:24 +0100983 if (!conn_is_back(h1s->h1c->conn))
Christopher Faulet9768c262018-10-22 09:34:31 +0200984 h1_set_cli_conn_mode(h1s, h1m);
Christopher Fauletb992af02019-03-28 15:42:24 +0100985 else
Christopher Faulet9768c262018-10-22 09:34:31 +0200986 h1_set_srv_conn_mode(h1s, h1m);
Christopher Fauletf2824e62018-10-01 12:12:37 +0200987}
988
Christopher Fauletb992af02019-03-28 15:42:24 +0100989static void h1_process_output_conn_mode(struct h1s *h1s, struct h1m *h1m, struct ist *conn_val)
990{
991 if (!conn_is_back(h1s->h1c->conn))
992 h1_set_cli_conn_mode(h1s, h1m);
993 else
994 h1_set_srv_conn_mode(h1s, h1m);
995
996 if (!(h1m->flags & H1_MF_RESP))
997 h1_update_req_conn_value(h1s, h1m, conn_val);
998 else
999 h1_update_res_conn_value(h1s, h1m, conn_val);
1000}
Christopher Faulete44769b2018-11-29 23:01:45 +01001001
Christopher Faulet98fbe952019-07-22 16:18:24 +02001002/* Try to adjust the case of the message header name using the global map
1003 * <hdrs_map>.
1004 */
1005static void h1_adjust_case_outgoing_hdr(struct h1s *h1s, struct h1m *h1m, struct ist *name)
1006{
1007 struct ebpt_node *node;
1008 struct h1_hdr_entry *entry;
1009
1010 /* No entry in the map, do nothing */
1011 if (eb_is_empty(&hdrs_map.map))
1012 return;
1013
1014 /* No conversion fo the request headers */
1015 if (!(h1m->flags & H1_MF_RESP) && !(h1s->h1c->px->options2 & PR_O2_H1_ADJ_BUGSRV))
1016 return;
1017
1018 /* No conversion fo the response headers */
1019 if ((h1m->flags & H1_MF_RESP) && !(h1s->h1c->px->options2 & PR_O2_H1_ADJ_BUGCLI))
1020 return;
1021
1022 node = ebis_lookup_len(&hdrs_map.map, name->ptr, name->len);
1023 if (!node)
1024 return;
1025 entry = container_of(node, struct h1_hdr_entry, node);
1026 name->ptr = entry->name.ptr;
1027 name->len = entry->name.len;
1028}
1029
Christopher Faulete44769b2018-11-29 23:01:45 +01001030/* Append the description of what is present in error snapshot <es> into <out>.
1031 * The description must be small enough to always fit in a buffer. The output
1032 * buffer may be the trash so the trash must not be used inside this function.
1033 */
1034static void h1_show_error_snapshot(struct buffer *out, const struct error_snapshot *es)
1035{
1036 chunk_appendf(out,
Christopher Fauletaa75b3d2018-12-05 16:20:40 +01001037 " H1 connection flags 0x%08x, H1 stream flags 0x%08x\n"
1038 " H1 msg state %s(%d), H1 msg flags 0x%08x\n"
1039 " H1 chunk len %lld bytes, H1 body len %lld bytes :\n",
1040 es->ctx.h1.c_flags, es->ctx.h1.s_flags,
1041 h1m_state_str(es->ctx.h1.state), es->ctx.h1.state,
1042 es->ctx.h1.m_flags, es->ctx.h1.m_clen, es->ctx.h1.m_blen);
Christopher Faulete44769b2018-11-29 23:01:45 +01001043}
1044/*
1045 * Capture a bad request or response and archive it in the proxy's structure.
1046 * By default it tries to report the error position as h1m->err_pos. However if
1047 * this one is not set, it will then report h1m->next, which is the last known
1048 * parsing point. The function is able to deal with wrapping buffers. It always
1049 * displays buffers as a contiguous area starting at buf->p. The direction is
1050 * determined thanks to the h1m's flags.
1051 */
1052static void h1_capture_bad_message(struct h1c *h1c, struct h1s *h1s,
1053 struct h1m *h1m, struct buffer *buf)
1054{
1055 struct session *sess = h1c->conn->owner;
1056 struct proxy *proxy = h1c->px;
1057 struct proxy *other_end = sess->fe;
1058 union error_snapshot_ctx ctx;
1059
Willy Tarreau598d7fc2018-12-18 18:10:38 +01001060 if (h1s->cs->data && !(h1m->flags & H1_MF_RESP))
Christopher Faulete44769b2018-11-29 23:01:45 +01001061 other_end = si_strm(h1s->cs->data)->be;
1062
1063 /* http-specific part now */
1064 ctx.h1.state = h1m->state;
1065 ctx.h1.c_flags = h1c->flags;
1066 ctx.h1.s_flags = h1s->flags;
1067 ctx.h1.m_flags = h1m->flags;
1068 ctx.h1.m_clen = h1m->curr_len;
1069 ctx.h1.m_blen = h1m->body_len;
1070
1071 proxy_capture_error(proxy, !!(h1m->flags & H1_MF_RESP), other_end,
1072 h1c->conn->target, sess, buf, 0, 0,
Christopher Fauletaa75b3d2018-12-05 16:20:40 +01001073 (h1m->err_pos >= 0) ? h1m->err_pos : h1m->next,
1074 &ctx, h1_show_error_snapshot);
Christopher Faulete44769b2018-11-29 23:01:45 +01001075}
1076
Christopher Fauletadb22202018-12-12 10:32:09 +01001077/* Emit the chunksize followed by a CRLF in front of data of the buffer
1078 * <buf>. It goes backwards and starts with the byte before the buffer's
1079 * head. The caller is responsible for ensuring there is enough room left before
1080 * the buffer's head for the string.
1081 */
1082static void h1_emit_chunk_size(struct buffer *buf, size_t chksz)
1083{
1084 char *beg, *end;
1085
1086 beg = end = b_head(buf);
1087 *--beg = '\n';
1088 *--beg = '\r';
1089 do {
1090 *--beg = hextab[chksz & 0xF];
1091 } while (chksz >>= 4);
1092 buf->head -= (end - beg);
1093 b_add(buf, end - beg);
1094}
1095
1096/* Emit a CRLF after the data of the buffer <buf>. The caller is responsible for
1097 * ensuring there is enough room left in the buffer for the string. */
1098static void h1_emit_chunk_crlf(struct buffer *buf)
1099{
1100 *(b_peek(buf, b_data(buf))) = '\r';
1101 *(b_peek(buf, b_data(buf) + 1)) = '\n';
1102 b_add(buf, 2);
1103}
1104
Christopher Faulet129817b2018-09-20 16:14:40 +02001105/*
Christopher Fauletc62c2b92019-03-28 11:41:39 +01001106 * Switch the request to tunnel mode. This function must only be called for
Christopher Fauletf3158e92019-11-15 11:14:23 +01001107 * CONNECT requests. On the client side, if the response is not finished, the
1108 * mux is mark as busy on input.
Christopher Fauletc62c2b92019-03-28 11:41:39 +01001109 */
1110static void h1_set_req_tunnel_mode(struct h1s *h1s)
1111{
1112 h1s->req.flags &= ~(H1_MF_XFER_LEN|H1_MF_CLEN|H1_MF_CHNK);
1113 h1s->req.state = H1_MSG_TUNNEL;
Christopher Fauletf3158e92019-11-15 11:14:23 +01001114 TRACE_STATE("switch H1 request in tunnel mode", H1_EV_TX_DATA|H1_EV_TX_HDRS, h1s->h1c->conn, h1s);
1115
Christopher Faulet76014fd2019-12-10 11:47:22 +01001116 if (!conn_is_back(h1s->h1c->conn)) {
1117 h1s->flags &= ~H1S_F_PARSING_DONE;
1118 if (h1s->res.state < H1_MSG_DONE) {
1119 h1s->h1c->flags |= H1C_F_IN_BUSY;
1120 TRACE_STATE("switch h1c in busy mode", H1_EV_RX_DATA|H1_EV_H1C_BLK, h1s->h1c->conn, h1s);
1121 }
Christopher Faulet6b81df72019-10-01 22:08:43 +02001122 }
Christopher Fauletf3158e92019-11-15 11:14:23 +01001123 else if (h1s->h1c->flags & H1C_F_IN_BUSY) {
1124 h1s->h1c->flags &= ~H1C_F_IN_BUSY;
1125 tasklet_wakeup(h1s->h1c->wait_event.tasklet);
1126 TRACE_STATE("h1c no more busy", H1_EV_RX_DATA|H1_EV_H1C_BLK|H1_EV_H1C_WAKE, h1s->h1c->conn, h1s);
1127 }
Christopher Fauletc62c2b92019-03-28 11:41:39 +01001128}
1129
1130/*
1131 * Switch the response to tunnel mode. This function must only be called on
Christopher Fauletf3158e92019-11-15 11:14:23 +01001132 * successfull replies to CONNECT requests or on protocol switching. In this
1133 * last case, this function takes care to switch the request to tunnel mode if
1134 * possible. On the server side, if the request is not finished, the mux is mark
1135 * as busy on input.
Christopher Fauletc62c2b92019-03-28 11:41:39 +01001136 */
1137static void h1_set_res_tunnel_mode(struct h1s *h1s)
1138{
Christopher Fauletf3158e92019-11-15 11:14:23 +01001139
Christopher Fauletc62c2b92019-03-28 11:41:39 +01001140 h1s->res.flags &= ~(H1_MF_XFER_LEN|H1_MF_CLEN|H1_MF_CHNK);
1141 h1s->res.state = H1_MSG_TUNNEL;
Christopher Fauletf3158e92019-11-15 11:14:23 +01001142 TRACE_STATE("switch H1 response in tunnel mode", H1_EV_TX_DATA|H1_EV_TX_HDRS, h1s->h1c->conn, h1s);
1143
Christopher Faulet76014fd2019-12-10 11:47:22 +01001144 if (conn_is_back(h1s->h1c->conn)) {
1145 h1s->flags &= ~H1S_F_PARSING_DONE;
1146 /* On protocol switching, switch the request to tunnel mode if it is in
1147 * DONE state. Otherwise we will wait the end of the request to switch
1148 * it in tunnel mode.
1149 */
1150 if (h1s->req.state < H1_MSG_DONE) {
1151 h1s->h1c->flags |= H1C_F_IN_BUSY;
1152 TRACE_STATE("switch h1c in busy mode", H1_EV_RX_DATA|H1_EV_H1C_BLK, h1s->h1c->conn, h1s);
1153 }
1154 else if (h1s->status == 101 && h1s->req.state == H1_MSG_DONE) {
1155 h1s->req.flags &= ~(H1_MF_XFER_LEN|H1_MF_CLEN|H1_MF_CHNK);
1156 h1s->req.state = H1_MSG_TUNNEL;
1157 TRACE_STATE("switch H1 request in tunnel mode", H1_EV_TX_DATA|H1_EV_TX_HDRS, h1s->h1c->conn, h1s);
1158 }
Christopher Faulet6b81df72019-10-01 22:08:43 +02001159 }
Christopher Fauletf3158e92019-11-15 11:14:23 +01001160 else if (h1s->h1c->flags & H1C_F_IN_BUSY) {
1161 h1s->h1c->flags &= ~H1C_F_IN_BUSY;
1162 tasklet_wakeup(h1s->h1c->wait_event.tasklet);
1163 TRACE_STATE("h1c no more busy", H1_EV_RX_DATA|H1_EV_H1C_BLK|H1_EV_H1C_WAKE, h1s->h1c->conn, h1s);
Christopher Fauletc62c2b92019-03-28 11:41:39 +01001164 }
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001165}
1166
1167/*
Christopher Faulet129817b2018-09-20 16:14:40 +02001168 * Parse HTTP/1 headers. It returns the number of bytes parsed if > 0, or 0 if
Christopher Fauletf2824e62018-10-01 12:12:37 +02001169 * it couldn't proceed. Parsing errors are reported by setting H1S_F_*_ERROR
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001170 * flag. If relies on the function http_parse_msg_hdrs() to do the parsing.
Christopher Faulet129817b2018-09-20 16:14:40 +02001171 */
Christopher Faulet9768c262018-10-22 09:34:31 +02001172static size_t h1_process_headers(struct h1s *h1s, struct h1m *h1m, struct htx *htx,
Christopher Fauletf2824e62018-10-01 12:12:37 +02001173 struct buffer *buf, size_t *ofs, size_t max)
Christopher Faulet129817b2018-09-20 16:14:40 +02001174{
Christopher Fauletf1ba18d2018-11-26 21:37:08 +01001175 union h1_sl h1sl;
Christopher Faulet129817b2018-09-20 16:14:40 +02001176 int ret = 0;
1177
Christopher Faulet6b81df72019-10-01 22:08:43 +02001178 TRACE_ENTER(H1_EV_RX_DATA|H1_EV_RX_HDRS, h1s->h1c->conn, h1s,, (size_t[]){max});
1179
Christopher Fauleteec96b52019-09-25 09:10:46 +02001180 if (!(h1s->flags & H1S_F_NOT_FIRST) && !(h1m->flags & H1_MF_RESP)) {
Christopher Faulet0ef372a2019-04-08 10:57:20 +02001181 /* Try to match H2 preface before parsing the request headers. */
1182 ret = b_isteq(buf, 0, b_data(buf), ist(H2_CONN_PREFACE));
Christopher Faulet6b81df72019-10-01 22:08:43 +02001183 if (ret > 0) {
Christopher Faulet0ef372a2019-04-08 10:57:20 +02001184 goto h2c_upgrade;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001185 }
Christopher Faulet0ef372a2019-04-08 10:57:20 +02001186 }
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001187 else {
1188 if (h1s->meth == HTTP_METH_CONNECT)
1189 h1m->flags |= H1_MF_METH_CONNECT;
1190 if (h1s->meth == HTTP_METH_HEAD)
1191 h1m->flags |= H1_MF_METH_HEAD;
1192 }
Christopher Faulet0ef372a2019-04-08 10:57:20 +02001193
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001194 ret = h1_parse_msg_hdrs(h1m, &h1sl, htx, buf, *ofs, max);
1195 if (!ret) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02001196 TRACE_DEVEL("leaving on missing data or error", H1_EV_RX_DATA|H1_EV_RX_HDRS, h1s->h1c->conn, h1s);
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001197 if (htx->flags & HTX_FL_PARSING_ERROR) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02001198 if (!(h1m->flags & H1_MF_RESP)) {
1199 h1s->flags |= H1S_F_REQ_ERROR;
1200 TRACE_USER("rejected H1 request", H1_EV_RX_DATA|H1_EV_RX_HDRS|H1_EV_H1S_ERR, h1s->h1c->conn, h1s);
1201 }
1202 else {
1203 h1s->flags |= H1S_F_RES_ERROR;
1204 TRACE_USER("rejected H1 response", H1_EV_RX_DATA|H1_EV_RX_HDRS|H1_EV_H1S_ERR, h1s->h1c->conn, h1s);
1205 }
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001206 h1s->cs->flags |= CS_FL_EOI;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001207 TRACE_STATE("parsing error", H1_EV_RX_DATA|H1_EV_RX_HDRS|H1_EV_H1S_ERR, h1s->h1c->conn, h1s);
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001208 h1_capture_bad_message(h1s->h1c, h1s, h1m, buf);
1209 }
Christopher Faulet129817b2018-09-20 16:14:40 +02001210 goto end;
1211 }
1212
Christopher Faulet486498c2019-10-11 14:22:00 +02001213 if (h1m->err_pos >= 0) {
1214 /* Maybe we found an error during the parsing while we were
1215 * configured not to block on that, so we have to capture it
1216 * now.
1217 */
1218 TRACE_STATE("Ignored parsing error", H1_EV_RX_DATA|H1_EV_RX_HDRS, h1s->h1c->conn, h1s);
1219 h1_capture_bad_message(h1s->h1c, h1s, h1m, buf);
1220 }
1221
Christopher Faulet129817b2018-09-20 16:14:40 +02001222 if (!(h1m->flags & H1_MF_RESP)) {
Christopher Fauletf1ba18d2018-11-26 21:37:08 +01001223 h1s->meth = h1sl.rq.meth;
Christopher Fauletf3158e92019-11-15 11:14:23 +01001224 if (h1m->state == H1_MSG_TUNNEL)
Christopher Fauletc62c2b92019-03-28 11:41:39 +01001225 h1_set_req_tunnel_mode(h1s);
Christopher Faulet129817b2018-09-20 16:14:40 +02001226 }
1227 else {
Christopher Fauletf1ba18d2018-11-26 21:37:08 +01001228 h1s->status = h1sl.st.status;
Christopher Fauletf3158e92019-11-15 11:14:23 +01001229 if (h1m->state == H1_MSG_TUNNEL)
Christopher Fauletc62c2b92019-03-28 11:41:39 +01001230 h1_set_res_tunnel_mode(h1s);
Christopher Fauletf1ba18d2018-11-26 21:37:08 +01001231 }
Christopher Fauletb992af02019-03-28 15:42:24 +01001232 h1_process_input_conn_mode(h1s, h1m, htx);
Christopher Faulet9768c262018-10-22 09:34:31 +02001233 *ofs += ret;
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001234
Christopher Faulet129817b2018-09-20 16:14:40 +02001235 end:
Christopher Faulet6b81df72019-10-01 22:08:43 +02001236 TRACE_LEAVE(H1_EV_RX_DATA|H1_EV_RX_HDRS, h1s->h1c->conn, h1s,, (size_t[]){ret});
Christopher Faulet129817b2018-09-20 16:14:40 +02001237 return ret;
Christopher Fauletf2824e62018-10-01 12:12:37 +02001238
Christopher Faulet0ef372a2019-04-08 10:57:20 +02001239 h2c_upgrade:
1240 h1s->h1c->flags |= H1C_F_UPG_H2C;
Christopher Faulet8e9e3ef2019-05-17 09:14:10 +02001241 h1s->cs->flags |= CS_FL_EOI;
Christopher Faulet0ef372a2019-04-08 10:57:20 +02001242 htx->flags |= HTX_FL_UPGRADE;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001243 TRACE_DEVEL("leaving on H2 update", H1_EV_RX_DATA|H1_EV_RX_HDRS|H1_EV_RX_EOI, h1s->h1c->conn, h1s);
1244 return 0;
Christopher Faulet129817b2018-09-20 16:14:40 +02001245}
1246
1247/*
Christopher Fauletf2824e62018-10-01 12:12:37 +02001248 * Parse HTTP/1 body. It returns the number of bytes parsed if > 0, or 0 if it
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001249 * couldn't proceed. Parsing errors are reported by setting H1S_F_*_ERROR flag.
1250 * If relies on the function http_parse_msg_data() to do the parsing.
Christopher Faulet129817b2018-09-20 16:14:40 +02001251 */
Christopher Fauletaf542632019-10-01 21:52:49 +02001252static size_t h1_process_data(struct h1s *h1s, struct h1m *h1m, struct htx **htx,
Christopher Fauletaa75b3d2018-12-05 16:20:40 +01001253 struct buffer *buf, size_t *ofs, size_t max,
Christopher Faulet30db3d72019-05-17 15:35:33 +02001254 struct buffer *htxbuf)
Christopher Faulet129817b2018-09-20 16:14:40 +02001255{
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001256 int ret;
Christopher Faulet30db3d72019-05-17 15:35:33 +02001257
Christopher Faulet6b81df72019-10-01 22:08:43 +02001258 TRACE_ENTER(H1_EV_RX_DATA|H1_EV_RX_BODY, h1s->h1c->conn, h1s,, (size_t[]){max});
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001259 ret = h1_parse_msg_data(h1m, htx, buf, *ofs, max, htxbuf);
Christopher Faulet02a02532019-11-15 09:36:28 +01001260 if (!ret) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02001261 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 +01001262 if ((*htx)->flags & HTX_FL_PARSING_ERROR) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02001263 if (!(h1m->flags & H1_MF_RESP)) {
1264 h1s->flags |= H1S_F_REQ_ERROR;
1265 TRACE_USER("rejected H1 request", H1_EV_RX_DATA|H1_EV_RX_BODY|H1_EV_H1S_ERR, h1s->h1c->conn, h1s);
1266 }
1267 else {
1268 h1s->flags |= H1S_F_RES_ERROR;
1269 TRACE_USER("rejected H1 response", H1_EV_RX_DATA|H1_EV_RX_BODY|H1_EV_H1S_ERR, h1s->h1c->conn, h1s);
1270 }
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001271 h1s->cs->flags |= CS_FL_EOI;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001272 TRACE_STATE("parsing error", H1_EV_RX_DATA|H1_EV_RX_BODY|H1_EV_H1S_ERR, h1s->h1c->conn, h1s);
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001273 h1_capture_bad_message(h1s->h1c, h1s, h1m, buf);
Christopher Faulet9768c262018-10-22 09:34:31 +02001274 }
Christopher Faulet02a02532019-11-15 09:36:28 +01001275 goto end;
Christopher Faulet129817b2018-09-20 16:14:40 +02001276 }
1277
Willy Tarreau17ccd1a2020-01-17 16:19:34 +01001278 if (h1m->state == H1_MSG_DATA && h1m->curr_len && h1s->cs)
1279 h1s->cs->flags |= CS_FL_MAY_SPLICE;
1280 else if (h1s->cs)
1281 h1s->cs->flags &= ~CS_FL_MAY_SPLICE;
1282
Christopher Faulet02a02532019-11-15 09:36:28 +01001283 *ofs += ret;
1284
1285 end:
Christopher Faulet6b81df72019-10-01 22:08:43 +02001286 TRACE_LEAVE(H1_EV_RX_DATA|H1_EV_RX_BODY, h1s->h1c->conn, h1s,, (size_t[]){ret});
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001287 return ret;
Christopher Faulet129817b2018-09-20 16:14:40 +02001288}
1289
1290/*
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001291 * Parse HTTP/1 trailers. It returns the number of bytes parsed if > 0, or 0 if
1292 * it couldn't proceed. Parsing errors are reported by setting H1S_F_*_ERROR
1293 * flag and filling h1s->err_pos and h1s->err_state fields. This functions is
1294 * responsible to update the parser state <h1m>.
1295 */
1296static size_t h1_process_trailers(struct h1s *h1s, struct h1m *h1m, struct htx *htx,
1297 struct buffer *buf, size_t *ofs, size_t max)
1298{
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001299 int ret;
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001300
Christopher Faulet6b81df72019-10-01 22:08:43 +02001301 TRACE_ENTER(H1_EV_RX_DATA|H1_EV_RX_TLRS, h1s->h1c->conn, h1s,, (size_t[]){max});
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001302 ret = h1_parse_msg_tlrs(h1m, htx, buf, *ofs, max);
Christopher Faulet02a02532019-11-15 09:36:28 +01001303 if (!ret) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02001304 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 +01001305 if (htx->flags & HTX_FL_PARSING_ERROR) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02001306 if (!(h1m->flags & H1_MF_RESP)) {
1307 h1s->flags |= H1S_F_REQ_ERROR;
1308 TRACE_USER("rejected H1 request", H1_EV_RX_DATA|H1_EV_RX_TLRS|H1_EV_H1S_ERR, h1s->h1c->conn, h1s);
1309 }
1310 else {
1311 h1s->flags |= H1S_F_RES_ERROR;
1312 TRACE_USER("rejected H1 response", H1_EV_RX_DATA|H1_EV_RX_TLRS|H1_EV_H1S_ERR, h1s->h1c->conn, h1s);
1313 }
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001314 h1s->cs->flags |= CS_FL_EOI;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001315 TRACE_STATE("parsing error", H1_EV_RX_DATA|H1_EV_RX_TLRS|H1_EV_H1S_ERR, h1s->h1c->conn, h1s);
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001316 h1_capture_bad_message(h1s->h1c, h1s, h1m, buf);
1317 }
Christopher Faulet02a02532019-11-15 09:36:28 +01001318 goto end;
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001319 }
Christopher Faulet6b81df72019-10-01 22:08:43 +02001320
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001321 *ofs += ret;
Christopher Faulet02a02532019-11-15 09:36:28 +01001322
1323 end:
Christopher Faulet6b81df72019-10-01 22:08:43 +02001324 TRACE_LEAVE(H1_EV_RX_DATA|H1_EV_RX_TLRS, h1s->h1c->conn, h1s,, (size_t[]){ret});
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001325 return ret;
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001326}
1327
1328/*
Christopher Faulet76014fd2019-12-10 11:47:22 +01001329 * Add the EOM in the HTX message. It returns 1 on success or 0 if it couldn't
1330 * proceed. This functions is responsible to update the parser state <h1m>. It
1331 * also add the flag CS_FL_EOI on the CS.
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001332 */
Christopher Faulet76014fd2019-12-10 11:47:22 +01001333static size_t h1_process_eom(struct h1s *h1s, struct h1m *h1m, struct htx *htx,
1334 struct buffer *buf, size_t *ofs, size_t max)
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001335{
Christopher Faulet76014fd2019-12-10 11:47:22 +01001336 int ret;
1337
1338 TRACE_ENTER(H1_EV_RX_DATA|H1_EV_RX_EOI, h1s->h1c->conn, h1s,, (size_t[]){max});
1339 ret = h1_parse_msg_eom(h1m, htx, max);
1340 if (!ret) {
1341 TRACE_DEVEL("leaving on missing data or error", H1_EV_RX_DATA|H1_EV_RX_EOI, h1s->h1c->conn, h1s);
1342 if (htx->flags & HTX_FL_PARSING_ERROR) {
1343 if (!(h1m->flags & H1_MF_RESP)) {
1344 h1s->flags |= H1S_F_REQ_ERROR;
1345 TRACE_USER("rejected H1 request", H1_EV_RX_DATA|H1_EV_RX_EOI|H1_EV_H1S_ERR, h1s->h1c->conn, h1s);
1346 }
1347 else {
1348 h1s->flags |= H1S_F_RES_ERROR;
1349 TRACE_USER("rejected H1 response", H1_EV_RX_DATA|H1_EV_RX_EOI|H1_EV_H1S_ERR, h1s->h1c->conn, h1s);
1350 }
1351 h1s->cs->flags |= CS_FL_EOI;
1352 TRACE_STATE("parsing error", H1_EV_RX_DATA|H1_EV_RX_EOI|H1_EV_H1S_ERR, h1s->h1c->conn, h1s);
1353 h1_capture_bad_message(h1s->h1c, h1s, h1m, buf);
1354 }
1355 goto end;
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001356 }
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001357
Christopher Faulet76014fd2019-12-10 11:47:22 +01001358 h1s->flags |= H1S_F_PARSING_DONE;
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001359 h1s->cs->flags |= CS_FL_EOI;
Christopher Faulet76014fd2019-12-10 11:47:22 +01001360 end:
1361 TRACE_LEAVE(H1_EV_RX_DATA|H1_EV_RX_EOI, h1s->h1c->conn, h1s,, (size_t[]){ret});
1362 return ret;
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001363}
1364
1365/*
Christopher Faulet129817b2018-09-20 16:14:40 +02001366 * Process incoming data. It parses data and transfer them from h1c->ibuf into
Christopher Faulet539e0292018-11-19 10:40:09 +01001367 * <buf>. It returns the number of bytes parsed and transferred if > 0, or 0 if
1368 * it couldn't proceed.
Christopher Faulet129817b2018-09-20 16:14:40 +02001369 */
Christopher Faulet30db3d72019-05-17 15:35:33 +02001370static size_t h1_process_input(struct h1c *h1c, struct buffer *buf, size_t count)
Christopher Faulet51dbc942018-09-13 09:05:15 +02001371{
Christopher Faulet539e0292018-11-19 10:40:09 +01001372 struct h1s *h1s = h1c->h1s;
Christopher Faulet129817b2018-09-20 16:14:40 +02001373 struct h1m *h1m;
Christopher Faulet9768c262018-10-22 09:34:31 +02001374 struct htx *htx;
Christopher Faulet30db3d72019-05-17 15:35:33 +02001375 size_t ret, data;
Christopher Faulet129817b2018-09-20 16:14:40 +02001376 size_t total = 0;
Christopher Fauletf2824e62018-10-01 12:12:37 +02001377 int errflag;
Christopher Faulet51dbc942018-09-13 09:05:15 +02001378
Christopher Faulet539e0292018-11-19 10:40:09 +01001379 htx = htx_from_buf(buf);
Christopher Faulet6b81df72019-10-01 22:08:43 +02001380 TRACE_ENTER(H1_EV_RX_DATA, h1c->conn, h1s, htx, (size_t[]){count});
Willy Tarreau3a6190f2018-12-16 08:29:56 +01001381
Christopher Fauletf2824e62018-10-01 12:12:37 +02001382 if (!conn_is_back(h1c->conn)) {
1383 h1m = &h1s->req;
1384 errflag = H1S_F_REQ_ERROR;
1385 }
1386 else {
1387 h1m = &h1s->res;
1388 errflag = H1S_F_RES_ERROR;
1389 }
Christopher Faulet9768c262018-10-22 09:34:31 +02001390
Christopher Faulet74027762019-02-26 14:45:05 +01001391 data = htx->data;
Christopher Faulet0e54d542019-07-04 21:22:34 +02001392 if (h1s->flags & errflag)
1393 goto end;
1394
Christopher Fauletd44ad5b2018-11-19 21:52:12 +01001395 do {
Christopher Faulet30db3d72019-05-17 15:35:33 +02001396 size_t used = htx_used_space(htx);
1397
Christopher Faulet129817b2018-09-20 16:14:40 +02001398 if (h1m->state <= H1_MSG_LAST_LF) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02001399 TRACE_PROTO("parsing message headers", H1_EV_RX_DATA|H1_EV_RX_HDRS, h1c->conn, h1s);
Christopher Faulet539e0292018-11-19 10:40:09 +01001400 ret = h1_process_headers(h1s, h1m, htx, &h1c->ibuf, &total, count);
Christopher Faulet129817b2018-09-20 16:14:40 +02001401 if (!ret)
1402 break;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001403
1404 TRACE_USER((!(h1m->flags & H1_MF_RESP) ? "rcvd H1 request headers" : "rcvd H1 response headers"),
1405 H1_EV_RX_DATA|H1_EV_RX_HDRS, h1c->conn, h1s, htx, (size_t[]){ret});
1406
Christopher Fauletb75b5ea2019-05-17 08:37:28 +02001407 if ((h1m->flags & H1_MF_RESP) &&
1408 h1s->status < 200 && (h1s->status == 100 || h1s->status >= 102)) {
1409 h1m_init_res(&h1s->res);
1410 h1m->flags |= (H1_MF_NO_PHDR|H1_MF_CLEAN_CONN_HDR);
Christopher Faulet6b81df72019-10-01 22:08:43 +02001411 TRACE_STATE("1xx response rcvd", H1_EV_RX_DATA|H1_EV_RX_HDRS, h1c->conn, h1s);
Christopher Fauletb75b5ea2019-05-17 08:37:28 +02001412 }
Christopher Faulet129817b2018-09-20 16:14:40 +02001413 }
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001414 else if (h1m->state < H1_MSG_TRAILERS) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02001415 TRACE_PROTO("parsing message payload", H1_EV_RX_DATA|H1_EV_RX_BODY, h1c->conn, h1s);
Christopher Fauletaf542632019-10-01 21:52:49 +02001416 ret = h1_process_data(h1s, h1m, &htx, &h1c->ibuf, &total, count, buf);
Christopher Faulet76014fd2019-12-10 11:47:22 +01001417 if (!ret && h1m->state != H1_MSG_DONE)
Christopher Faulet129817b2018-09-20 16:14:40 +02001418 break;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001419
1420 TRACE_PROTO((!(h1m->flags & H1_MF_RESP) ? "rcvd H1 request payload data" : "rcvd H1 response payload data"),
1421 H1_EV_RX_DATA|H1_EV_RX_BODY, h1c->conn, h1s, htx, (size_t[]){ret});
Christopher Faulet129817b2018-09-20 16:14:40 +02001422 }
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001423 else if (h1m->state == H1_MSG_TRAILERS) {
Christopher Faulet76014fd2019-12-10 11:47:22 +01001424 TRACE_PROTO("parsing message trailers", H1_EV_RX_DATA|H1_EV_RX_TLRS, h1c->conn, h1s);
1425 ret = h1_process_trailers(h1s, h1m, htx, &h1c->ibuf, &total, count);
1426 if (!ret && h1m->state != H1_MSG_DONE)
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001427 break;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001428
Christopher Faulet76014fd2019-12-10 11:47:22 +01001429 TRACE_PROTO((!(h1m->flags & H1_MF_RESP) ? "rcvd H1 request trailers" : "rcvd H1 response trailers"),
1430 H1_EV_RX_DATA|H1_EV_RX_TLRS, h1c->conn, h1s, htx, (size_t[]){ret});
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001431 }
Christopher Fauletcb55f482018-12-10 11:56:47 +01001432 else if (h1m->state == H1_MSG_DONE) {
Christopher Faulet76014fd2019-12-10 11:47:22 +01001433 if (!(h1s->flags & H1S_F_PARSING_DONE)) {
1434 if (!h1_process_eom(h1s, h1m, htx, &h1c->ibuf, &total, count))
1435 break;
1436
1437 TRACE_USER((!(h1m->flags & H1_MF_RESP) ? "H1 request fully rcvd" : "H1 response fully rcvd"),
1438 H1_EV_RX_DATA|H1_EV_RX_EOI, h1c->conn, h1s, htx);
1439 }
1440
Christopher Fauletf3158e92019-11-15 11:14:23 +01001441 if (!(h1m->flags & H1_MF_RESP) && h1s->status == 101)
1442 h1_set_req_tunnel_mode(h1s);
1443 else if (h1s->req.state < H1_MSG_DONE || h1s->res.state < H1_MSG_DONE) {
Christopher Faulet2f320ee2019-04-16 20:26:53 +02001444 h1c->flags |= H1C_F_IN_BUSY;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001445 TRACE_STATE("switch h1c in busy mode", H1_EV_RX_DATA|H1_EV_H1C_BLK, h1c->conn, h1s);
1446 }
Christopher Fauletf2824e62018-10-01 12:12:37 +02001447 break;
Christopher Fauletcb55f482018-12-10 11:56:47 +01001448 }
Christopher Fauletf2824e62018-10-01 12:12:37 +02001449 else if (h1m->state == H1_MSG_TUNNEL) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02001450 TRACE_PROTO("parsing tunneled data", H1_EV_RX_DATA, h1c->conn, h1s);
Christopher Fauletaf542632019-10-01 21:52:49 +02001451 ret = h1_process_data(h1s, h1m, &htx, &h1c->ibuf, &total, count, buf);
Christopher Faulet9768c262018-10-22 09:34:31 +02001452 if (!ret)
1453 break;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001454
1455 TRACE_PROTO((!(h1m->flags & H1_MF_RESP) ? "rcvd H1 request tunneled data" : "rcvd H1 response tunneled data"),
1456 H1_EV_RX_DATA|H1_EV_RX_EOI, h1c->conn, h1s, htx, (size_t[]){ret});
Christopher Fauletf2824e62018-10-01 12:12:37 +02001457 }
Christopher Faulet129817b2018-09-20 16:14:40 +02001458 else {
Christopher Fauletf2824e62018-10-01 12:12:37 +02001459 h1s->flags |= errflag;
Christopher Faulet129817b2018-09-20 16:14:40 +02001460 break;
1461 }
1462
Christopher Faulet30db3d72019-05-17 15:35:33 +02001463 count -= htx_used_space(htx) - used;
Christopher Faulet6b321922019-09-03 16:26:15 +02001464 } while (!(h1s->flags & errflag));
Christopher Faulet129817b2018-09-20 16:14:40 +02001465
Christopher Faulet6b81df72019-10-01 22:08:43 +02001466 if (h1s->flags & errflag) {
1467 TRACE_PROTO("parsing error", H1_EV_RX_DATA, h1c->conn, h1s);
Christopher Faulet47365272018-10-31 17:40:50 +01001468 goto parsing_err;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001469 }
Christopher Faulet129817b2018-09-20 16:14:40 +02001470
Christopher Faulet539e0292018-11-19 10:40:09 +01001471 b_del(&h1c->ibuf, total);
1472
1473 end:
Christopher Faulet27ba2dc2018-12-05 11:53:24 +01001474 htx_to_buf(htx, buf);
Christopher Faulet30db3d72019-05-17 15:35:33 +02001475 ret = htx->data - data;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001476 if ((h1c->flags & H1C_F_IN_FULL) && buf_room_for_htx_data(&h1c->ibuf)) {
Christopher Faulet539e0292018-11-19 10:40:09 +01001477 h1c->flags &= ~H1C_F_IN_FULL;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001478 TRACE_STATE("h1c ibuf not full anymore", H1_EV_RX_DATA|H1_EV_H1C_BLK|H1_EV_H1C_WAKE);
Willy Tarreau2c1f37d2020-03-04 17:50:02 +01001479 h1c->conn->xprt->subscribe(h1c->conn, h1c->conn->xprt_ctx, SUB_RETRY_RECV, &h1c->wait_event);
Christopher Faulet47365272018-10-31 17:40:50 +01001480 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02001481
Christopher Fauletcf56b992018-12-11 16:12:31 +01001482 h1s->cs->flags &= ~(CS_FL_RCV_MORE | CS_FL_WANT_ROOM);
1483
Christopher Fauletcdc90e92019-03-28 13:28:46 +01001484 if (!b_data(&h1c->ibuf))
Christopher Faulet539e0292018-11-19 10:40:09 +01001485 h1_release_buf(h1c, &h1c->ibuf);
Christopher Faulet6716cc22019-12-20 17:33:24 +01001486 if (h1s_data_pending(h1s) && !htx_is_empty(htx))
Christopher Fauletcf56b992018-12-11 16:12:31 +01001487 h1s->cs->flags |= CS_FL_RCV_MORE | CS_FL_WANT_ROOM;
Christopher Faulet76014fd2019-12-10 11:47:22 +01001488 else if (h1s->flags & H1S_F_REOS) {
Christopher Fauletf6ce9d62018-12-10 15:30:06 +01001489 h1s->cs->flags |= CS_FL_EOS;
Christopher Faulet466080d2019-11-15 09:50:22 +01001490 if (h1m->state == H1_MSG_TUNNEL)
1491 h1s->cs->flags |= CS_FL_EOI;
1492 else if (h1m->state > H1_MSG_LAST_LF && h1m->state < H1_MSG_DONE)
Christopher Fauletb8d2ee02019-02-25 15:29:51 +01001493 h1s->cs->flags |= CS_FL_ERROR;
Christopher Faulet539e0292018-11-19 10:40:09 +01001494 }
Christopher Fauletf6ce9d62018-12-10 15:30:06 +01001495
Christopher Faulet6b81df72019-10-01 22:08:43 +02001496 TRACE_LEAVE(H1_EV_RX_DATA, h1c->conn, h1s, htx, (size_t[]){ret});
Christopher Faulet30db3d72019-05-17 15:35:33 +02001497 return ret;
Christopher Faulet47365272018-10-31 17:40:50 +01001498
1499 parsing_err:
Christopher Faulet47365272018-10-31 17:40:50 +01001500 b_reset(&h1c->ibuf);
Christopher Faulet27ba2dc2018-12-05 11:53:24 +01001501 htx_to_buf(htx, buf);
Christopher Faulet6b81df72019-10-01 22:08:43 +02001502 TRACE_DEVEL("leaving on error", H1_EV_RX_DATA|H1_EV_STRM_ERR, h1c->conn, h1s);
Christopher Faulet9768c262018-10-22 09:34:31 +02001503 return 0;
Christopher Faulet51dbc942018-09-13 09:05:15 +02001504}
1505
Christopher Faulet129817b2018-09-20 16:14:40 +02001506/*
1507 * Process outgoing data. It parses data and transfer them from the channel buffer into
1508 * h1c->obuf. It returns the number of bytes parsed and transferred if > 0, or
1509 * 0 if it couldn't proceed.
1510 */
Christopher Faulet51dbc942018-09-13 09:05:15 +02001511static size_t h1_process_output(struct h1c *h1c, struct buffer *buf, size_t count)
1512{
Christopher Faulet129817b2018-09-20 16:14:40 +02001513 struct h1s *h1s = h1c->h1s;
1514 struct h1m *h1m;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001515 struct htx *chn_htx = NULL;
Christopher Faulet9768c262018-10-22 09:34:31 +02001516 struct htx_blk *blk;
Christopher Fauletc2518a52019-06-25 21:41:02 +02001517 struct buffer tmp;
Christopher Faulet129817b2018-09-20 16:14:40 +02001518 size_t total = 0;
Christopher Fauletf2824e62018-10-01 12:12:37 +02001519 int errflag;
Christopher Faulet51dbc942018-09-13 09:05:15 +02001520
Christopher Faulet47365272018-10-31 17:40:50 +01001521 if (!count)
1522 goto end;
Willy Tarreau37dd54d2018-12-15 14:48:31 +01001523
Christopher Faulet94b2c762019-05-24 15:28:57 +02001524 chn_htx = htxbuf(buf);
Christopher Faulet6b81df72019-10-01 22:08:43 +02001525 TRACE_ENTER(H1_EV_TX_DATA, h1c->conn, h1s, chn_htx, (size_t[]){count});
1526
Willy Tarreau37dd54d2018-12-15 14:48:31 +01001527 if (htx_is_empty(chn_htx))
1528 goto end;
Christopher Faulet9768c262018-10-22 09:34:31 +02001529
Christopher Faulet51dbc942018-09-13 09:05:15 +02001530 if (!h1_get_buf(h1c, &h1c->obuf)) {
1531 h1c->flags |= H1C_F_OUT_ALLOC;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001532 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 +02001533 goto end;
1534 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02001535
Christopher Fauletf2824e62018-10-01 12:12:37 +02001536 if (!conn_is_back(h1c->conn)) {
1537 h1m = &h1s->res;
1538 errflag = H1S_F_RES_ERROR;
1539 }
1540 else {
1541 h1m = &h1s->req;
1542 errflag = H1S_F_REQ_ERROR;
1543 }
Christopher Faulet9768c262018-10-22 09:34:31 +02001544
Christopher Faulet0e54d542019-07-04 21:22:34 +02001545 if (h1s->flags & errflag)
1546 goto end;
1547
Willy Tarreau37dd54d2018-12-15 14:48:31 +01001548 /* the htx is non-empty thus has at least one block */
Willy Tarreau3815b222018-12-11 19:50:43 +01001549 blk = htx_get_head_blk(chn_htx);
Christopher Faulet9768c262018-10-22 09:34:31 +02001550
Willy Tarreau3815b222018-12-11 19:50:43 +01001551 /* Perform some optimizations to reduce the number of buffer copies.
1552 * First, if the mux's buffer is empty and the htx area contains
1553 * exactly one data block of the same size as the requested count,
1554 * then it's possible to simply swap the caller's buffer with the
1555 * mux's output buffer and adjust offsets and length to match the
1556 * entire DATA HTX block in the middle. In this case we perform a
1557 * true zero-copy operation from end-to-end. This is the situation
1558 * that happens all the time with large files. Second, if this is not
1559 * possible, but the mux's output buffer is empty, we still have an
1560 * opportunity to avoid the copy to the intermediary buffer, by making
1561 * the intermediary buffer's area point to the output buffer's area.
1562 * In this case we want to skip the HTX header to make sure that copies
1563 * remain aligned and that this operation remains possible all the
1564 * time. This goes for headers, data blocks and any data extracted from
1565 * the HTX blocks.
Willy Tarreauc5efa332018-12-05 11:19:27 +01001566 */
1567 if (!b_data(&h1c->obuf)) {
Christopher Faulet192c6a22019-06-11 16:32:24 +02001568 if (htx_nbblks(chn_htx) == 1 &&
Willy Tarreau37dd54d2018-12-15 14:48:31 +01001569 htx_get_blk_type(blk) == HTX_BLK_DATA &&
Willy Tarreau3815b222018-12-11 19:50:43 +01001570 htx_get_blk_value(chn_htx, blk).len == count) {
1571 void *old_area = h1c->obuf.area;
1572
Christopher Faulet6b81df72019-10-01 22:08:43 +02001573 TRACE_PROTO("sending message data (zero-copy)", H1_EV_TX_DATA|H1_EV_TX_BODY, h1c->conn, h1s, chn_htx, (size_t[]){count});
Willy Tarreau3815b222018-12-11 19:50:43 +01001574 h1c->obuf.area = buf->area;
Christopher Fauletc2518a52019-06-25 21:41:02 +02001575 h1c->obuf.head = sizeof(struct htx) + blk->addr;
Willy Tarreau3815b222018-12-11 19:50:43 +01001576 h1c->obuf.data = count;
1577
1578 buf->area = old_area;
1579 buf->data = buf->head = 0;
Christopher Fauletadb22202018-12-12 10:32:09 +01001580
Christopher Faulet6b81df72019-10-01 22:08:43 +02001581 chn_htx = (struct htx *)buf->area;
1582 htx_reset(chn_htx);
1583
Christopher Fauletadb22202018-12-12 10:32:09 +01001584 /* The message is chunked. We need to emit the chunk
1585 * size. We have at least the size of the struct htx to
1586 * write the chunk envelope. It should be enough.
1587 */
1588 if (h1m->flags & H1_MF_CHNK) {
1589 h1_emit_chunk_size(&h1c->obuf, count);
1590 h1_emit_chunk_crlf(&h1c->obuf);
1591 }
1592
Willy Tarreau3815b222018-12-11 19:50:43 +01001593 total += count;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001594 if (h1m->state == H1_MSG_DATA)
1595 TRACE_PROTO((!(h1m->flags & H1_MF_RESP) ? "H1 request payload data xferred" : "H1 response payload data xferred"),
Christopher Faulet08618a72019-10-08 11:59:47 +02001596 H1_EV_TX_DATA|H1_EV_TX_BODY, h1c->conn, h1s,, (size_t[]){count});
Christopher Faulet6b81df72019-10-01 22:08:43 +02001597 else
1598 TRACE_PROTO((!(h1m->flags & H1_MF_RESP) ? "H1 request tunneled data xferred" : "H1 response tunneled data xferred"),
Christopher Faulet08618a72019-10-08 11:59:47 +02001599 H1_EV_TX_DATA|H1_EV_TX_BODY, h1c->conn, h1s,, (size_t[]){count});
Willy Tarreau3815b222018-12-11 19:50:43 +01001600 goto out;
1601 }
Christopher Fauletc2518a52019-06-25 21:41:02 +02001602 tmp.area = h1c->obuf.area + h1c->obuf.head;
Willy Tarreauc5efa332018-12-05 11:19:27 +01001603 }
Christopher Fauletc2518a52019-06-25 21:41:02 +02001604 else
1605 tmp.area = trash.area;
Christopher Faulet9768c262018-10-22 09:34:31 +02001606
Christopher Fauletc2518a52019-06-25 21:41:02 +02001607 tmp.data = 0;
1608 tmp.size = b_room(&h1c->obuf);
Christopher Fauletb2e84162018-12-06 11:39:49 +01001609 while (count && !(h1s->flags & errflag) && blk) {
Christopher Faulet570d1612018-11-26 11:13:57 +01001610 struct htx_sl *sl;
Christopher Faulet9768c262018-10-22 09:34:31 +02001611 struct ist n, v;
Christopher Fauletb2e84162018-12-06 11:39:49 +01001612 enum htx_blk_type type = htx_get_blk_type(blk);
Christopher Faulet9768c262018-10-22 09:34:31 +02001613 uint32_t sz = htx_get_blksz(blk);
Christopher Fauletd9233f02019-10-14 14:01:24 +02001614 uint32_t vlen, chklen;
Christopher Faulet9768c262018-10-22 09:34:31 +02001615
Christopher Fauletb2e84162018-12-06 11:39:49 +01001616 vlen = sz;
Christopher Fauletd9233f02019-10-14 14:01:24 +02001617 if (type != HTX_BLK_DATA && vlen > count)
1618 goto full;
Christopher Faulet9768c262018-10-22 09:34:31 +02001619
Christopher Faulet94b2c762019-05-24 15:28:57 +02001620 if (type == HTX_BLK_UNUSED)
1621 goto nextblk;
Christopher Faulet9768c262018-10-22 09:34:31 +02001622
Christopher Faulet94b2c762019-05-24 15:28:57 +02001623 switch (h1m->state) {
1624 case H1_MSG_RQBEFORE:
1625 if (type != HTX_BLK_REQ_SL)
1626 goto error;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001627 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 +02001628 sl = htx_get_blk_ptr(chn_htx, blk);
Christopher Faulet570d1612018-11-26 11:13:57 +01001629 h1s->meth = sl->info.req.meth;
Christopher Faulet9768c262018-10-22 09:34:31 +02001630 h1_parse_req_vsn(h1m, sl);
Christopher Faulet53a899b2019-10-08 16:38:42 +02001631 if (!h1_format_htx_reqline(sl, &tmp))
Christopher Fauleta61aa542019-10-14 14:17:00 +02001632 goto full;
Christopher Faulet9768c262018-10-22 09:34:31 +02001633 h1m->flags |= H1_MF_XFER_LEN;
Christopher Faulet1f890dd2019-02-18 10:33:16 +01001634 if (sl->flags & HTX_SL_F_BODYLESS)
1635 h1m->flags |= H1_MF_CLEN;
Christopher Faulet9768c262018-10-22 09:34:31 +02001636 h1m->state = H1_MSG_HDR_FIRST;
Christopher Faulet129817b2018-09-20 16:14:40 +02001637 break;
Christopher Faulet129817b2018-09-20 16:14:40 +02001638
Christopher Faulet94b2c762019-05-24 15:28:57 +02001639 case H1_MSG_RPBEFORE:
1640 if (type != HTX_BLK_RES_SL)
1641 goto error;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001642 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 +02001643 sl = htx_get_blk_ptr(chn_htx, blk);
Christopher Faulet570d1612018-11-26 11:13:57 +01001644 h1s->status = sl->info.res.status;
Christopher Faulet9768c262018-10-22 09:34:31 +02001645 h1_parse_res_vsn(h1m, sl);
Christopher Faulet53a899b2019-10-08 16:38:42 +02001646 if (!h1_format_htx_stline(sl, &tmp))
Christopher Fauleta61aa542019-10-14 14:17:00 +02001647 goto full;
Christopher Faulet03599112018-11-27 11:21:21 +01001648 if (sl->flags & HTX_SL_F_XFER_LEN)
Christopher Faulet9768c262018-10-22 09:34:31 +02001649 h1m->flags |= H1_MF_XFER_LEN;
Christopher Fauletd1ebb1e2018-11-28 16:32:50 +01001650 if (sl->info.res.status < 200 &&
1651 (sl->info.res.status == 100 || sl->info.res.status >= 102))
Christopher Fauletada34b62019-05-24 16:36:43 +02001652 h1s->flags |= H1S_F_HAVE_O_CONN;
Christopher Faulet9768c262018-10-22 09:34:31 +02001653 h1m->state = H1_MSG_HDR_FIRST;
1654 break;
1655
Christopher Faulet94b2c762019-05-24 15:28:57 +02001656 case H1_MSG_HDR_FIRST:
1657 case H1_MSG_HDR_NAME:
1658 case H1_MSG_HDR_L2_LWS:
1659 if (type == HTX_BLK_EOH)
1660 goto last_lf;
1661 if (type != HTX_BLK_HDR)
1662 goto error;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001663
Christopher Faulet9768c262018-10-22 09:34:31 +02001664 h1m->state = H1_MSG_HDR_NAME;
1665 n = htx_get_blk_name(chn_htx, blk);
1666 v = htx_get_blk_value(chn_htx, blk);
1667
Christopher Faulet86d144c2019-08-14 16:32:25 +02001668 /* Skip all pseudo-headers */
1669 if (*(n.ptr) == ':')
1670 goto skip_hdr;
1671
Christopher Fauletb045bb22020-02-28 10:42:20 +01001672 if (isteq(n, ist("transfer-encoding")))
Christopher Faulet9768c262018-10-22 09:34:31 +02001673 h1_parse_xfer_enc_header(h1m, v);
Christopher Fauletb045bb22020-02-28 10:42:20 +01001674 else if (isteq(n, ist("content-length"))) {
Christopher Faulet5220ef22019-03-27 15:44:56 +01001675 /* Only skip C-L header with invalid value. */
1676 if (h1_parse_cont_len_header(h1m, &v) < 0)
Willy Tarreau27cd2232019-01-03 21:52:42 +01001677 goto skip_hdr;
1678 }
Christopher Fauletb045bb22020-02-28 10:42:20 +01001679 else if (isteq(n, ist("connection"))) {
Christopher Fauletb992af02019-03-28 15:42:24 +01001680 h1_parse_connection_header(h1m, &v);
Christopher Faulet9768c262018-10-22 09:34:31 +02001681 if (!v.len)
1682 goto skip_hdr;
1683 }
1684
Christopher Faulet67d58092019-10-02 10:51:38 +02001685 /* Skip header if same name is used to add the server name */
1686 if (!(h1m->flags & H1_MF_RESP) && h1c->px->server_id_hdr_name &&
1687 isteqi(n, ist2(h1c->px->server_id_hdr_name, h1c->px->server_id_hdr_len)))
1688 goto skip_hdr;
1689
Christopher Faulet98fbe952019-07-22 16:18:24 +02001690 /* Try to adjust the case of the header name */
1691 if (h1c->px->options2 & (PR_O2_H1_ADJ_BUGCLI|PR_O2_H1_ADJ_BUGSRV))
1692 h1_adjust_case_outgoing_hdr(h1s, h1m, &n);
Christopher Faulet53a899b2019-10-08 16:38:42 +02001693 if (!h1_format_htx_hdr(n, v, &tmp))
Christopher Fauleta61aa542019-10-14 14:17:00 +02001694 goto full;
Christopher Faulet9768c262018-10-22 09:34:31 +02001695 skip_hdr:
1696 h1m->state = H1_MSG_HDR_L2_LWS;
1697 break;
1698
Christopher Faulet94b2c762019-05-24 15:28:57 +02001699 case H1_MSG_LAST_LF:
1700 if (type != HTX_BLK_EOH)
1701 goto error;
1702 last_lf:
Christopher Fauletada34b62019-05-24 16:36:43 +02001703 h1m->state = H1_MSG_LAST_LF;
1704 if (!(h1s->flags & H1S_F_HAVE_O_CONN)) {
Christopher Faulet04f89192019-10-16 09:41:07 +02001705 /* If the reply comes from haproxy while the request is
1706 * not finished, we force the connection close. */
1707 if ((chn_htx->flags & HTX_FL_PROXY_RESP) && h1s->req.state != H1_MSG_DONE) {
1708 h1s->flags = (h1s->flags & ~H1S_F_WANT_MSK) | H1S_F_WANT_CLO;
1709 TRACE_STATE("force close mode (resp)", H1_EV_TX_DATA|H1_EV_TX_HDRS, h1s->h1c->conn, h1s);
1710 }
1711
1712 /* the conn_mode must be processed. So do it */
Christopher Fauleta110ecb2019-06-17 14:07:46 +02001713 n = ist("connection");
Christopher Fauletd1ebb1e2018-11-28 16:32:50 +01001714 v = ist("");
Christopher Fauletb992af02019-03-28 15:42:24 +01001715 h1_process_output_conn_mode(h1s, h1m, &v);
Christopher Fauletd1ebb1e2018-11-28 16:32:50 +01001716 if (v.len) {
Christopher Faulet98fbe952019-07-22 16:18:24 +02001717 /* Try to adjust the case of the header name */
1718 if (h1c->px->options2 & (PR_O2_H1_ADJ_BUGCLI|PR_O2_H1_ADJ_BUGSRV))
1719 h1_adjust_case_outgoing_hdr(h1s, h1m, &n);
Christopher Faulet53a899b2019-10-08 16:38:42 +02001720 if (!h1_format_htx_hdr(n, v, &tmp))
Christopher Fauleta61aa542019-10-14 14:17:00 +02001721 goto full;
Christopher Fauletd1ebb1e2018-11-28 16:32:50 +01001722 }
Christopher Fauletada34b62019-05-24 16:36:43 +02001723 h1s->flags |= H1S_F_HAVE_O_CONN;
Christopher Fauletd1ebb1e2018-11-28 16:32:50 +01001724 }
Willy Tarreau4710d202019-01-03 17:39:54 +01001725
Christopher Fauletc62c2b92019-03-28 11:41:39 +01001726 if ((h1s->meth != HTTP_METH_CONNECT &&
1727 (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 +01001728 (H1_MF_VER_11|H1_MF_XFER_LEN)) ||
1729 (h1s->status >= 200 && h1s->status != 204 && h1s->status != 304 &&
1730 h1s->meth != HTTP_METH_HEAD && !(h1s->meth == HTTP_METH_CONNECT && h1s->status == 200) &&
1731 (h1m->flags & (H1_MF_VER_11|H1_MF_RESP|H1_MF_CLEN|H1_MF_CHNK|H1_MF_XFER_LEN)) ==
1732 (H1_MF_VER_11|H1_MF_RESP|H1_MF_XFER_LEN))) {
Willy Tarreau4710d202019-01-03 17:39:54 +01001733 /* chunking needed but header not seen */
Christopher Faulet7a991a92019-10-04 10:23:51 +02001734 n = ist("transfer-encoding");
1735 v = ist("chunked");
1736 if (h1c->px->options2 & (PR_O2_H1_ADJ_BUGCLI|PR_O2_H1_ADJ_BUGSRV))
1737 h1_adjust_case_outgoing_hdr(h1s, h1m, &n);
Christopher Faulet53a899b2019-10-08 16:38:42 +02001738 if (!h1_format_htx_hdr(n, v, &tmp))
Christopher Fauleta61aa542019-10-14 14:17:00 +02001739 goto full;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001740 TRACE_STATE("add \"Transfer-Encoding: chunked\"", H1_EV_TX_DATA|H1_EV_TX_HDRS, h1c->conn, h1s);
Willy Tarreau4710d202019-01-03 17:39:54 +01001741 h1m->flags |= H1_MF_CHNK;
1742 }
1743
Christopher Faulet72ba6cd2019-09-24 16:20:05 +02001744 /* Now add the server name to a header (if requested) */
1745 if (!(h1s->flags & H1S_F_HAVE_SRV_NAME) &&
1746 !(h1m->flags & H1_MF_RESP) && h1c->px->server_id_hdr_name) {
1747 struct server *srv = objt_server(h1c->conn->target);
1748
1749 if (srv) {
1750 n = ist2(h1c->px->server_id_hdr_name, h1c->px->server_id_hdr_len);
1751 v = ist(srv->id);
Christopher Faulet5cef2a62019-10-02 11:06:13 +02001752
1753 /* Try to adjust the case of the header name */
1754 if (h1c->px->options2 & (PR_O2_H1_ADJ_BUGCLI|PR_O2_H1_ADJ_BUGSRV))
1755 h1_adjust_case_outgoing_hdr(h1s, h1m, &n);
Christopher Faulet53a899b2019-10-08 16:38:42 +02001756 if (!h1_format_htx_hdr(n, v, &tmp))
Christopher Fauleta61aa542019-10-14 14:17:00 +02001757 goto full;
Christopher Faulet72ba6cd2019-09-24 16:20:05 +02001758 }
Christopher Faulet6b81df72019-10-01 22:08:43 +02001759 TRACE_STATE("add server name header", H1_EV_TX_DATA|H1_EV_TX_HDRS, h1c->conn, h1s);
Christopher Faulet72ba6cd2019-09-24 16:20:05 +02001760 h1s->flags |= H1S_F_HAVE_SRV_NAME;
1761 }
1762
Christopher Fauletc2518a52019-06-25 21:41:02 +02001763 if (!chunk_memcat(&tmp, "\r\n", 2))
Christopher Fauleta61aa542019-10-14 14:17:00 +02001764 goto full;
Christopher Faulet9768c262018-10-22 09:34:31 +02001765
Christopher Faulet6b81df72019-10-01 22:08:43 +02001766 TRACE_PROTO((!(h1m->flags & H1_MF_RESP) ? "H1 request headers xferred" : "H1 response headers xferred"),
1767 H1_EV_TX_DATA|H1_EV_TX_HDRS, h1c->conn, h1s);
1768
Christopher Fauletc62c2b92019-03-28 11:41:39 +01001769 if (!(h1m->flags & H1_MF_RESP) && h1s->meth == HTTP_METH_CONNECT) {
1770 /* a CONNECT request is sent to the server. Switch it to tunnel mode. */
1771 h1_set_req_tunnel_mode(h1s);
1772 }
Christopher Fauletf3158e92019-11-15 11:14:23 +01001773 else if ((h1m->flags & H1_MF_RESP) &&
1774 ((h1s->meth == HTTP_METH_CONNECT && h1s->status == 200) || h1s->status == 101)) {
Christopher Fauletc62c2b92019-03-28 11:41:39 +01001775 /* a successfull reply to a CONNECT or a protocol switching is sent
Christopher Fauletf3158e92019-11-15 11:14:23 +01001776 * to the client. Switch the response to tunnel mode.
1777 */
Christopher Fauletc62c2b92019-03-28 11:41:39 +01001778 h1_set_res_tunnel_mode(h1s);
Christopher Faulet6b81df72019-10-01 22:08:43 +02001779 TRACE_STATE("switch H1 response in tunnel mode", H1_EV_TX_DATA|H1_EV_TX_HDRS, h1c->conn, h1s);
Christopher Fauletc62c2b92019-03-28 11:41:39 +01001780 }
Christopher Fauletb75b5ea2019-05-17 08:37:28 +02001781 else if ((h1m->flags & H1_MF_RESP) &&
1782 h1s->status < 200 && (h1s->status == 100 || h1s->status >= 102)) {
1783 h1m_init_res(&h1s->res);
1784 h1m->flags |= (H1_MF_NO_PHDR|H1_MF_CLEAN_CONN_HDR);
Christopher Fauletada34b62019-05-24 16:36:43 +02001785 h1s->flags &= ~H1S_F_HAVE_O_CONN;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001786 TRACE_STATE("1xx response xferred", H1_EV_TX_DATA|H1_EV_TX_HDRS, h1c->conn, h1s);
Christopher Fauletb75b5ea2019-05-17 08:37:28 +02001787 }
Christopher Faulet6b81df72019-10-01 22:08:43 +02001788 else if ((h1m->flags & H1_MF_RESP) && h1s->meth == HTTP_METH_HEAD) {
Christopher Fauletb8fc3042019-07-01 16:17:30 +02001789 h1m->state = H1_MSG_DONE;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001790 TRACE_STATE("HEAD response processed", H1_EV_TX_DATA|H1_EV_TX_HDRS, h1c->conn, h1s);
1791 }
Christopher Fauletc62c2b92019-03-28 11:41:39 +01001792 else
1793 h1m->state = H1_MSG_DATA;
Christopher Faulet9768c262018-10-22 09:34:31 +02001794 break;
1795
Christopher Faulet94b2c762019-05-24 15:28:57 +02001796 case H1_MSG_DATA:
Christopher Fauletf8db73e2019-07-04 17:12:12 +02001797 case H1_MSG_TUNNEL:
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001798 if (type == HTX_BLK_EOM) {
1799 /* Chunked message without explicit trailers */
1800 if (h1m->flags & H1_MF_CHNK) {
Christopher Fauletc2518a52019-06-25 21:41:02 +02001801 if (!chunk_memcat(&tmp, "0\r\n\r\n", 5))
Christopher Fauleta61aa542019-10-14 14:17:00 +02001802 goto full;
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001803 }
1804 goto done;
1805 }
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001806 else if (type == HTX_BLK_EOT || type == HTX_BLK_TLR) {
Christopher Faulet5433a0b2019-06-27 17:40:14 +02001807 /* If the message is not chunked, never
1808 * add the last chunk. */
1809 if ((h1m->flags & H1_MF_CHNK) && !chunk_memcat(&tmp, "0\r\n", 3))
Christopher Fauleta61aa542019-10-14 14:17:00 +02001810 goto full;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001811 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 +02001812 goto trailers;
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001813 }
Christopher Faulet94b2c762019-05-24 15:28:57 +02001814 else if (type != HTX_BLK_DATA)
1815 goto error;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001816
1817 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 +02001818
1819
1820 if (vlen > count) {
1821 /* Get the maximum amount of data we can xferred */
1822 vlen = count;
1823 }
1824
1825 chklen = 0;
1826 if (h1m->flags & H1_MF_CHNK) {
1827 chklen = b_room(&tmp);
1828 chklen = ((chklen < 16) ? 1 : (chklen < 256) ? 2 :
1829 (chklen < 4096) ? 3 : (chklen < 65536) ? 4 :
1830 (chklen < 1048576) ? 5 : 8);
1831 chklen += 4; /* 2 x CRLF */
1832 }
1833
1834 if (vlen + chklen > b_room(&tmp)) {
1835 /* too large for the buffer */
1836 if (chklen >= b_room(&tmp))
1837 goto full;
1838 vlen = b_room(&tmp) - chklen;
1839 }
Christopher Faulet9768c262018-10-22 09:34:31 +02001840 v = htx_get_blk_value(chn_htx, blk);
Christopher Fauletb2e84162018-12-06 11:39:49 +01001841 v.len = vlen;
Christopher Faulet53a899b2019-10-08 16:38:42 +02001842 if (!h1_format_htx_data(v, &tmp, !!(h1m->flags & H1_MF_CHNK)))
Christopher Fauleta61aa542019-10-14 14:17:00 +02001843 goto full;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001844
1845 if (h1m->state == H1_MSG_DATA)
1846 TRACE_PROTO((!(h1m->flags & H1_MF_RESP) ? "H1 request payload data xferred" : "H1 response payload data xferred"),
Christopher Faulet08618a72019-10-08 11:59:47 +02001847 H1_EV_TX_DATA|H1_EV_TX_BODY, h1c->conn, h1s,, (size_t[]){v.len});
Christopher Faulet6b81df72019-10-01 22:08:43 +02001848 else
1849 TRACE_PROTO((!(h1m->flags & H1_MF_RESP) ? "H1 request tunneled data xferred" : "H1 response tunneled data xferred"),
Christopher Faulet08618a72019-10-08 11:59:47 +02001850 H1_EV_TX_DATA|H1_EV_TX_BODY, h1c->conn, h1s,, (size_t[]){v.len});
Christopher Faulet9768c262018-10-22 09:34:31 +02001851 break;
1852
Christopher Faulet94b2c762019-05-24 15:28:57 +02001853 case H1_MSG_TRAILERS:
1854 if (type == HTX_BLK_EOM)
1855 goto done;
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001856 else if (type != HTX_BLK_TLR && type != HTX_BLK_EOT)
Christopher Faulet94b2c762019-05-24 15:28:57 +02001857 goto error;
1858 trailers:
Christopher Faulet9768c262018-10-22 09:34:31 +02001859 h1m->state = H1_MSG_TRAILERS;
Christopher Faulet5433a0b2019-06-27 17:40:14 +02001860 /* If the message is not chunked, ignore
1861 * trailers. It may happen with H2 messages. */
1862 if (!(h1m->flags & H1_MF_CHNK))
1863 break;
1864
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001865 if (type == HTX_BLK_EOT) {
Christopher Fauletc2518a52019-06-25 21:41:02 +02001866 if (!chunk_memcat(&tmp, "\r\n", 2))
Christopher Fauleta61aa542019-10-14 14:17:00 +02001867 goto full;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001868 TRACE_PROTO((!(h1m->flags & H1_MF_RESP) ? "H1 request trailers xferred" : "H1 response trailers xferred"),
1869 H1_EV_TX_DATA|H1_EV_TX_TLRS, h1c->conn, h1s);
Christopher Faulet32188212018-11-20 18:21:43 +01001870 }
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001871 else { // HTX_BLK_TLR
1872 n = htx_get_blk_name(chn_htx, blk);
1873 v = htx_get_blk_value(chn_htx, blk);
Christopher Faulet98fbe952019-07-22 16:18:24 +02001874
1875 /* Try to adjust the case of the header name */
1876 if (h1c->px->options2 & (PR_O2_H1_ADJ_BUGCLI|PR_O2_H1_ADJ_BUGSRV))
1877 h1_adjust_case_outgoing_hdr(h1s, h1m, &n);
Christopher Faulet53a899b2019-10-08 16:38:42 +02001878 if (!h1_format_htx_hdr(n, v, &tmp))
Christopher Fauleta61aa542019-10-14 14:17:00 +02001879 goto full;
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001880 }
Christopher Faulet9768c262018-10-22 09:34:31 +02001881 break;
1882
Christopher Faulet94b2c762019-05-24 15:28:57 +02001883 case H1_MSG_DONE:
1884 if (type != HTX_BLK_EOM)
1885 goto error;
1886 done:
1887 h1m->state = H1_MSG_DONE;
Christopher Fauletf3158e92019-11-15 11:14:23 +01001888 if (!(h1m->flags & H1_MF_RESP) && h1s->status == 101) {
1889 h1_set_req_tunnel_mode(h1s);
1890 TRACE_STATE("switch H1 request in tunnel mode", H1_EV_TX_DATA|H1_EV_TX_HDRS, h1c->conn, h1s);
1891 }
1892 else if (h1s->h1c->flags & H1C_F_IN_BUSY) {
Christopher Fauletcd67bff2019-06-14 16:54:15 +02001893 h1s->h1c->flags &= ~H1C_F_IN_BUSY;
Willy Tarreau2c1f37d2020-03-04 17:50:02 +01001894 h1c->conn->xprt->subscribe(h1c->conn, h1c->conn->xprt_ctx, SUB_RETRY_RECV, &h1c->wait_event);
Christopher Faulet6b81df72019-10-01 22:08:43 +02001895 TRACE_STATE("h1c no more busy", H1_EV_TX_DATA|H1_EV_H1C_BLK|H1_EV_H1C_WAKE, h1c->conn, h1s);
Christopher Fauletcd67bff2019-06-14 16:54:15 +02001896 }
Christopher Faulet6b81df72019-10-01 22:08:43 +02001897
1898 TRACE_USER((!(h1m->flags & H1_MF_RESP) ? "H1 request fully xferred" : "H1 response fully xferred"),
1899 H1_EV_TX_DATA, h1c->conn, h1s);
Christopher Faulet9768c262018-10-22 09:34:31 +02001900 break;
1901
Christopher Faulet9768c262018-10-22 09:34:31 +02001902 default:
Christopher Faulet94b2c762019-05-24 15:28:57 +02001903 error:
Christopher Faulet6b81df72019-10-01 22:08:43 +02001904 TRACE_PROTO("formatting error", H1_EV_TX_DATA, h1c->conn, h1s);
Christopher Fauletd87d3fa2019-06-26 15:16:28 +02001905 /* Unexpected error during output processing */
Christopher Faulet69b48212019-09-09 10:11:30 +02001906 chn_htx->flags |= HTX_FL_PROCESSING_ERROR;
Christopher Fauleta2ea1582019-05-28 10:35:18 +02001907 h1s->flags |= errflag;
Christopher Fauletd87d3fa2019-06-26 15:16:28 +02001908 h1c->flags |= H1C_F_CS_ERROR;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001909 TRACE_STATE("processing error, set error on h1c/h1s", H1_EV_H1C_ERR|H1_EV_H1S_ERR, h1c->conn, h1s);
1910 TRACE_DEVEL("unexpected error", H1_EV_TX_DATA|H1_EV_STRM_ERR, h1c->conn, h1s);
Christopher Faulet9768c262018-10-22 09:34:31 +02001911 break;
1912 }
Christopher Faulet94b2c762019-05-24 15:28:57 +02001913
1914 nextblk:
Christopher Fauletb2e84162018-12-06 11:39:49 +01001915 total += vlen;
1916 count -= vlen;
1917 if (sz == vlen)
1918 blk = htx_remove_blk(chn_htx, blk);
1919 else {
1920 htx_cut_data_blk(chn_htx, blk, vlen);
1921 break;
1922 }
Christopher Faulet129817b2018-09-20 16:14:40 +02001923 }
1924
Christopher Faulet9768c262018-10-22 09:34:31 +02001925 copy:
Willy Tarreauc5efa332018-12-05 11:19:27 +01001926 /* when the output buffer is empty, tmp shares the same area so that we
1927 * only have to update pointers and lengths.
1928 */
Christopher Fauletc2518a52019-06-25 21:41:02 +02001929 if (tmp.area == h1c->obuf.area + h1c->obuf.head)
1930 h1c->obuf.data = tmp.data;
Willy Tarreauc5efa332018-12-05 11:19:27 +01001931 else
Christopher Fauletc2518a52019-06-25 21:41:02 +02001932 b_putblk(&h1c->obuf, tmp.area, tmp.data);
Christopher Faulet51dbc942018-09-13 09:05:15 +02001933
Willy Tarreau3815b222018-12-11 19:50:43 +01001934 htx_to_buf(chn_htx, buf);
Christopher Faulet6b81df72019-10-01 22:08:43 +02001935 out:
1936 if (!buf_room_for_htx_data(&h1c->obuf)) {
1937 TRACE_STATE("h1c obuf full", H1_EV_TX_DATA|H1_EV_H1S_BLK, h1c->conn, h1s);
Christopher Faulet51dbc942018-09-13 09:05:15 +02001938 h1c->flags |= H1C_F_OUT_FULL;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001939 }
Christopher Faulet9768c262018-10-22 09:34:31 +02001940 end:
Christopher Faulet6b81df72019-10-01 22:08:43 +02001941 TRACE_LEAVE(H1_EV_TX_DATA, h1c->conn, h1s, chn_htx, (size_t[]){total});
Christopher Faulet9768c262018-10-22 09:34:31 +02001942 return total;
Christopher Fauleta61aa542019-10-14 14:17:00 +02001943
1944 full:
1945 TRACE_STATE("h1c obuf full", H1_EV_TX_DATA|H1_EV_H1S_BLK, h1c->conn, h1s);
1946 h1c->flags |= H1C_F_OUT_FULL;
1947 goto copy;
Christopher Faulet51dbc942018-09-13 09:05:15 +02001948}
1949
Christopher Faulet51dbc942018-09-13 09:05:15 +02001950/*********************************************************/
1951/* functions below are I/O callbacks from the connection */
1952/*********************************************************/
Christopher Faulete17fa2f2018-12-11 16:25:36 +01001953static void h1_wake_stream_for_recv(struct h1s *h1s)
1954{
Willy Tarreau1b0d4d12020-01-16 11:03:19 +01001955 if (h1s && h1s->subs && h1s->subs->events & SUB_RETRY_RECV) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02001956 TRACE_POINT(H1_EV_STRM_WAKE, h1s->h1c->conn, h1s);
Willy Tarreau1b0d4d12020-01-16 11:03:19 +01001957 tasklet_wakeup(h1s->subs->tasklet);
1958 h1s->subs->events &= ~SUB_RETRY_RECV;
1959 if (!h1s->subs->events)
1960 h1s->subs = NULL;
Christopher Faulete17fa2f2018-12-11 16:25:36 +01001961 }
1962}
1963static void h1_wake_stream_for_send(struct h1s *h1s)
1964{
Willy Tarreau1b0d4d12020-01-16 11:03:19 +01001965 if (h1s && h1s->subs && h1s->subs->events & SUB_RETRY_SEND) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02001966 TRACE_POINT(H1_EV_STRM_WAKE, h1s->h1c->conn, h1s);
Willy Tarreau1b0d4d12020-01-16 11:03:19 +01001967 tasklet_wakeup(h1s->subs->tasklet);
1968 h1s->subs->events &= ~SUB_RETRY_SEND;
1969 if (!h1s->subs->events)
1970 h1s->subs = NULL;
Christopher Faulete17fa2f2018-12-11 16:25:36 +01001971 }
1972}
1973
Christopher Faulet51dbc942018-09-13 09:05:15 +02001974/*
1975 * Attempt to read data, and subscribe if none available
1976 */
1977static int h1_recv(struct h1c *h1c)
1978{
1979 struct connection *conn = h1c->conn;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001980 struct h1s *h1s = h1c->h1s;
Olivier Houchard75159a92018-12-03 18:46:09 +01001981 size_t ret = 0, max;
Christopher Faulet51dbc942018-09-13 09:05:15 +02001982 int rcvd = 0;
Willy Tarreau6e59cb52020-02-20 11:11:50 +01001983 int flags = 0;
Christopher Faulet51dbc942018-09-13 09:05:15 +02001984
Christopher Faulet6b81df72019-10-01 22:08:43 +02001985 TRACE_ENTER(H1_EV_H1C_RECV, h1c->conn);
1986
1987 if (h1c->wait_event.events & SUB_RETRY_RECV) {
1988 TRACE_DEVEL("leaving on sub_recv", H1_EV_H1C_RECV, h1c->conn);
Christopher Fauletc386a882018-12-04 16:06:28 +01001989 return (b_data(&h1c->ibuf));
Christopher Faulet6b81df72019-10-01 22:08:43 +02001990 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02001991
Olivier Houchard75159a92018-12-03 18:46:09 +01001992 if (!h1_recv_allowed(h1c)) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02001993 TRACE_DEVEL("leaving on !recv_allowed", H1_EV_H1C_RECV, h1c->conn);
Olivier Houchard75159a92018-12-03 18:46:09 +01001994 rcvd = 1;
Christopher Faulet9768c262018-10-22 09:34:31 +02001995 goto end;
Olivier Houchard75159a92018-12-03 18:46:09 +01001996 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02001997
Christopher Fauletf7d5ff32019-04-16 13:55:08 +02001998 if (!h1_get_buf(h1c, &h1c->ibuf)) {
1999 h1c->flags |= H1C_F_IN_ALLOC;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002000 TRACE_STATE("waiting for h1c ibuf allocation", H1_EV_H1C_RECV|H1_EV_H1C_BLK, h1c->conn);
Christopher Faulet9768c262018-10-22 09:34:31 +02002001 goto end;
2002 }
Christopher Faulet1be55f92018-10-02 15:59:23 +02002003
Christopher Fauletf7d5ff32019-04-16 13:55:08 +02002004 if (h1s && (h1s->flags & (H1S_F_BUF_FLUSH|H1S_F_SPLICED_DATA))) {
Willy Tarreaufbdf90a2019-06-03 13:42:54 +02002005 if (!h1s_data_pending(h1s))
Christopher Fauletf7d5ff32019-04-16 13:55:08 +02002006 h1_wake_stream_for_recv(h1s);
2007 rcvd = 1;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002008 TRACE_DEVEL("leaving on (buf_flush|spliced_data)", H1_EV_H1C_RECV, h1c->conn);
Christopher Faulet9768c262018-10-22 09:34:31 +02002009 goto end;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002010 }
2011
Olivier Houchard29a22bc2018-12-04 18:16:45 +01002012 /*
2013 * If we only have a small amount of data, realign it,
2014 * it's probably cheaper than doing 2 recv() calls.
2015 */
2016 if (b_data(&h1c->ibuf) > 0 && b_data(&h1c->ibuf) < 128)
2017 b_slow_realign(&h1c->ibuf, trash.area, 0);
2018
Willy Tarreau6e59cb52020-02-20 11:11:50 +01002019 /* avoid useless reads after first responses */
2020 if (h1s && (h1s->req.state == H1_MSG_RQBEFORE || h1s->res.state == H1_MSG_RPBEFORE))
2021 flags |= CO_RFL_READ_ONCE;
2022
Willy Tarreau45f2b892018-12-05 07:59:27 +01002023 max = buf_room_for_htx_data(&h1c->ibuf);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002024 if (max) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02002025 if (h1c->flags & H1C_F_IN_FULL) {
2026 h1c->flags &= ~H1C_F_IN_FULL;
2027 TRACE_STATE("h1c ibuf not full anymore", H1_EV_H1C_RECV|H1_EV_H1C_BLK);
2028 }
Willy Tarreau78f548f2018-12-05 10:02:39 +01002029
Willy Tarreaue0f24ee2018-12-14 10:51:23 +01002030 b_realign_if_empty(&h1c->ibuf);
Willy Tarreau78f548f2018-12-05 10:02:39 +01002031 if (!b_data(&h1c->ibuf)) {
2032 /* try to pre-align the buffer like the rxbufs will be
2033 * to optimize memory copies.
2034 */
Willy Tarreau78f548f2018-12-05 10:02:39 +01002035 h1c->ibuf.head = sizeof(struct htx);
2036 }
Willy Tarreau6e59cb52020-02-20 11:11:50 +01002037 ret = conn->xprt->rcv_buf(conn, conn->xprt_ctx, &h1c->ibuf, max, flags);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002038 }
Christopher Faulet47365272018-10-31 17:40:50 +01002039 if (ret > 0) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02002040 TRACE_DATA("data received", H1_EV_H1C_RECV, h1c->conn,,, (size_t[]){ret});
Christopher Faulet51dbc942018-09-13 09:05:15 +02002041 rcvd = 1;
Christopher Fauletfeb11742018-11-29 15:12:34 +01002042 if (h1s && h1s->cs) {
Christopher Faulet37e36072018-12-04 15:54:12 +01002043 h1s->cs->flags |= (CS_FL_READ_PARTIAL|CS_FL_RCV_MORE);
Christopher Fauletfeb11742018-11-29 15:12:34 +01002044 if (h1s->csinfo.t_idle == -1)
2045 h1s->csinfo.t_idle = tv_ms_elapsed(&h1s->csinfo.tv_create, &now) - h1s->csinfo.t_handshake;
2046 }
Christopher Faulet47365272018-10-31 17:40:50 +01002047 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02002048
Olivier Houchardcc3fec82019-07-26 15:11:11 +02002049 if (ret > 0 || !h1_recv_allowed(h1c) || !buf_room_for_htx_data(&h1c->ibuf)) {
Christopher Faulet81d48432018-11-19 21:22:43 +01002050 rcvd = 1;
Christopher Fauletcf56b992018-12-11 16:12:31 +01002051 goto end;
2052 }
2053
Christopher Faulet6b81df72019-10-01 22:08:43 +02002054 TRACE_STATE("failed to receive data, subscribing", H1_EV_H1C_RECV, h1c->conn);
Olivier Houcharde179d0e2019-03-21 18:27:17 +01002055 conn->xprt->subscribe(conn, conn->xprt_ctx, SUB_RETRY_RECV, &h1c->wait_event);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002056
Christopher Faulet9768c262018-10-22 09:34:31 +02002057 end:
Christopher Faulete17fa2f2018-12-11 16:25:36 +01002058 if (ret > 0 || (conn->flags & CO_FL_ERROR) || conn_xprt_read0_pending(conn))
2059 h1_wake_stream_for_recv(h1s);
Olivier Houchard75159a92018-12-03 18:46:09 +01002060
Willy Tarreauc493c9c2019-06-03 14:18:22 +02002061 if (conn_xprt_read0_pending(conn) && h1s) {
2062 h1s->flags |= H1S_F_REOS;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002063 TRACE_STATE("read0 on connection", H1_EV_H1C_RECV, conn, h1s);
Willy Tarreaufbdf90a2019-06-03 13:42:54 +02002064 rcvd = 1;
2065 }
2066
Christopher Faulet51dbc942018-09-13 09:05:15 +02002067 if (!b_data(&h1c->ibuf))
2068 h1_release_buf(h1c, &h1c->ibuf);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002069 else if (!buf_room_for_htx_data(&h1c->ibuf)) {
Christopher Faulet51dbc942018-09-13 09:05:15 +02002070 h1c->flags |= H1C_F_IN_FULL;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002071 TRACE_STATE("h1c ibuf full", H1_EV_H1C_RECV|H1_EV_H1C_BLK);
2072 }
2073
2074 TRACE_LEAVE(H1_EV_H1C_RECV, h1c->conn);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002075 return rcvd;
2076}
2077
2078
2079/*
2080 * Try to send data if possible
2081 */
2082static int h1_send(struct h1c *h1c)
2083{
2084 struct connection *conn = h1c->conn;
2085 unsigned int flags = 0;
2086 size_t ret;
2087 int sent = 0;
2088
Christopher Faulet6b81df72019-10-01 22:08:43 +02002089 TRACE_ENTER(H1_EV_H1C_SEND, h1c->conn);
2090
2091 if (conn->flags & CO_FL_ERROR) {
2092 TRACE_DEVEL("leaving on connection error", H1_EV_H1C_SEND, h1c->conn);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002093 return 0;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002094 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02002095
2096 if (!b_data(&h1c->obuf))
2097 goto end;
2098
Christopher Faulet46230362019-10-17 16:04:20 +02002099 if (h1c->flags & H1C_F_CO_MSG_MORE)
Christopher Faulet51dbc942018-09-13 09:05:15 +02002100 flags |= CO_SFL_MSG_MORE;
Christopher Faulet46230362019-10-17 16:04:20 +02002101 if (h1c->flags & H1C_F_CO_STREAMER)
2102 flags |= CO_SFL_STREAMER;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002103
Olivier Houcharde179d0e2019-03-21 18:27:17 +01002104 ret = conn->xprt->snd_buf(conn, conn->xprt_ctx, &h1c->obuf, b_data(&h1c->obuf), flags);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002105 if (ret > 0) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02002106 TRACE_DATA("data sent", H1_EV_H1C_SEND, h1c->conn,,, (size_t[]){ret});
2107 if (h1c->flags & H1C_F_OUT_FULL) {
2108 h1c->flags &= ~H1C_F_OUT_FULL;
2109 TRACE_STATE("h1c obuf not full anymore", H1_EV_STRM_SEND|H1_EV_H1S_BLK, h1c->conn);
2110 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02002111 b_del(&h1c->obuf, ret);
2112 sent = 1;
2113 }
2114
Christopher Faulet145aa472018-12-06 10:56:20 +01002115 if (conn->flags & (CO_FL_ERROR|CO_FL_SOCK_WR_SH)) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02002116 TRACE_DEVEL("connection error or output closed", H1_EV_H1C_SEND, h1c->conn);
Christopher Faulet145aa472018-12-06 10:56:20 +01002117 /* error or output closed, nothing to send, clear the buffer to release it */
2118 b_reset(&h1c->obuf);
2119 }
2120
Christopher Faulet51dbc942018-09-13 09:05:15 +02002121 end:
Christopher Faulete17fa2f2018-12-11 16:25:36 +01002122 if (!(h1c->flags & H1C_F_OUT_FULL))
2123 h1_wake_stream_for_send(h1c->h1s);
Olivier Houchard75159a92018-12-03 18:46:09 +01002124
Christopher Faulet51dbc942018-09-13 09:05:15 +02002125 /* We're done, no more to send */
2126 if (!b_data(&h1c->obuf)) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02002127 TRACE_DEVEL("leaving with everything sent", H1_EV_H1C_SEND, h1c->conn);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002128 h1_release_buf(h1c, &h1c->obuf);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002129 if (h1c->flags & H1C_F_CS_SHUTW_NOW) {
2130 TRACE_STATE("process pending shutdown for writes", H1_EV_H1C_SEND, h1c->conn);
Christopher Faulet666a0c42019-01-08 11:12:04 +01002131 h1_shutw_conn(conn, CS_SHW_NORMAL);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002132 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02002133 }
Christopher Faulet6b81df72019-10-01 22:08:43 +02002134 else if (!(h1c->wait_event.events & SUB_RETRY_SEND)) {
2135 TRACE_STATE("more data to send, subscribing", H1_EV_H1C_SEND, h1c->conn);
Olivier Houcharde179d0e2019-03-21 18:27:17 +01002136 conn->xprt->subscribe(conn, conn->xprt_ctx, SUB_RETRY_SEND, &h1c->wait_event);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002137 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02002138
Christopher Faulet6b81df72019-10-01 22:08:43 +02002139 TRACE_LEAVE(H1_EV_H1C_SEND, h1c->conn);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002140 return sent;
2141}
2142
Christopher Faulet51dbc942018-09-13 09:05:15 +02002143
2144/* callback called on any event by the connection handler.
2145 * It applies changes and returns zero, or < 0 if it wants immediate
2146 * destruction of the connection.
2147 */
2148static int h1_process(struct h1c * h1c)
2149{
2150 struct connection *conn = h1c->conn;
Christopher Fauletfeb11742018-11-29 15:12:34 +01002151 struct h1s *h1s = h1c->h1s;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002152
Christopher Faulet6b81df72019-10-01 22:08:43 +02002153 TRACE_ENTER(H1_EV_H1C_WAKE, conn);
2154
Willy Tarreau3d2ee552018-12-19 14:12:10 +01002155 if (!conn->ctx)
Christopher Faulet51dbc942018-09-13 09:05:15 +02002156 return -1;
2157
Christopher Fauletfeb11742018-11-29 15:12:34 +01002158 if (!h1s) {
Christopher Faulet37243bc2019-07-11 15:40:25 +02002159 if (h1c->flags & (H1C_F_CS_ERROR|H1C_F_CS_SHUTDOWN) ||
Christopher Fauletaaa67bc2019-12-05 10:23:37 +01002160 conn->flags & (CO_FL_ERROR|CO_FL_SOCK_RD_SH|CO_FL_SOCK_WR_SH))
Christopher Faulet539e0292018-11-19 10:40:09 +01002161 goto release;
Christopher Fauletaaa67bc2019-12-05 10:23:37 +01002162 if (!conn_is_back(conn) && (h1c->flags & H1C_F_CS_IDLE)) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02002163 TRACE_STATE("K/A incoming connection, create new H1 stream", H1_EV_H1C_WAKE, conn);
Olivier Houchardf502aca2018-12-14 19:42:40 +01002164 if (!h1s_create(h1c, NULL, NULL))
Christopher Faulet539e0292018-11-19 10:40:09 +01002165 goto release;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002166 }
Christopher Faulet1a7ad7a2018-12-04 16:10:44 +01002167 else
Olivier Houcharde7284782018-12-06 18:54:54 +01002168 goto end;
Christopher Fauletfeb11742018-11-29 15:12:34 +01002169 h1s = h1c->h1s;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002170 }
2171
Christopher Fauletfeb11742018-11-29 15:12:34 +01002172 if (b_data(&h1c->ibuf) && h1s->csinfo.t_idle == -1)
2173 h1s->csinfo.t_idle = tv_ms_elapsed(&h1s->csinfo.tv_create, &now) - h1s->csinfo.t_handshake;
2174
Christopher Faulet6b81df72019-10-01 22:08:43 +02002175 if (conn_xprt_read0_pending(conn)) {
Willy Tarreauc493c9c2019-06-03 14:18:22 +02002176 h1s->flags |= H1S_F_REOS;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002177 TRACE_STATE("read0 on connection", H1_EV_H1C_RECV, conn, h1s);
2178 }
Willy Tarreauc493c9c2019-06-03 14:18:22 +02002179
Willy Tarreaufbdf90a2019-06-03 13:42:54 +02002180 if (!h1s_data_pending(h1s) && h1s && h1s->cs && h1s->cs->data_cb->wake &&
Willy Tarreauc493c9c2019-06-03 14:18:22 +02002181 (h1s->flags & H1S_F_REOS || h1c->flags & H1C_F_CS_ERROR ||
Olivier Houchard32d75ed2019-01-14 17:27:23 +01002182 conn->flags & (CO_FL_ERROR | CO_FL_SOCK_WR_SH))) {
Olivier Houchard75159a92018-12-03 18:46:09 +01002183 if (h1c->flags & H1C_F_CS_ERROR || conn->flags & CO_FL_ERROR)
Willy Tarreauc493c9c2019-06-03 14:18:22 +02002184 h1s->cs->flags |= CS_FL_ERROR;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002185 TRACE_POINT(H1_EV_STRM_WAKE, h1c->conn, h1s);
Olivier Houchard75159a92018-12-03 18:46:09 +01002186 h1s->cs->data_cb->wake(h1s->cs);
2187 }
Christopher Faulet47365272018-10-31 17:40:50 +01002188 end:
Christopher Fauletb8093cf2019-01-03 16:27:28 +01002189 if (h1c->task) {
2190 h1c->task->expire = TICK_ETERNITY;
2191 if (b_data(&h1c->obuf)) {
Christopher Faulet666a0c42019-01-08 11:12:04 +01002192 h1c->task->expire = tick_add(now_ms, ((h1c->flags & (H1C_F_CS_SHUTW_NOW|H1C_F_CS_SHUTDOWN))
Christopher Fauletb8093cf2019-01-03 16:27:28 +01002193 ? h1c->shut_timeout
2194 : h1c->timeout));
2195 task_queue(h1c->task);
2196 }
2197 }
Christopher Faulet6b81df72019-10-01 22:08:43 +02002198 TRACE_LEAVE(H1_EV_H1C_WAKE, conn);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002199 return 0;
Christopher Faulet539e0292018-11-19 10:40:09 +01002200
2201 release:
Christopher Faulet73c12072019-04-08 11:23:22 +02002202 h1_release(h1c);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002203 TRACE_DEVEL("leaving after releasing the connection", H1_EV_H1C_WAKE);
Christopher Faulet539e0292018-11-19 10:40:09 +01002204 return -1;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002205}
2206
2207static struct task *h1_io_cb(struct task *t, void *ctx, unsigned short status)
2208{
2209 struct h1c *h1c = ctx;
2210 int ret = 0;
2211
Christopher Faulet6b81df72019-10-01 22:08:43 +02002212 TRACE_POINT(H1_EV_H1C_WAKE, h1c->conn);
2213
Willy Tarreau4f6516d2018-12-19 13:59:17 +01002214 if (!(h1c->wait_event.events & SUB_RETRY_SEND))
Christopher Faulet51dbc942018-09-13 09:05:15 +02002215 ret = h1_send(h1c);
Willy Tarreau4f6516d2018-12-19 13:59:17 +01002216 if (!(h1c->wait_event.events & SUB_RETRY_RECV))
Christopher Faulet51dbc942018-09-13 09:05:15 +02002217 ret |= h1_recv(h1c);
Christopher Faulet81d48432018-11-19 21:22:43 +01002218 if (ret || !h1c->h1s)
Christopher Faulet51dbc942018-09-13 09:05:15 +02002219 h1_process(h1c);
2220 return NULL;
2221}
2222
Olivier Houchard9a86fcb2018-12-11 16:47:14 +01002223static void h1_reset(struct connection *conn)
2224{
Olivier Houchard9a86fcb2018-12-11 16:47:14 +01002225
Olivier Houchard9a86fcb2018-12-11 16:47:14 +01002226}
Christopher Faulet51dbc942018-09-13 09:05:15 +02002227
2228static int h1_wake(struct connection *conn)
2229{
Willy Tarreau3d2ee552018-12-19 14:12:10 +01002230 struct h1c *h1c = conn->ctx;
Olivier Houchard75159a92018-12-03 18:46:09 +01002231 int ret;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002232
Christopher Faulet6b81df72019-10-01 22:08:43 +02002233 TRACE_POINT(H1_EV_H1C_WAKE, conn);
2234
Christopher Faulet539e0292018-11-19 10:40:09 +01002235 h1_send(h1c);
Olivier Houchard75159a92018-12-03 18:46:09 +01002236 ret = h1_process(h1c);
2237 if (ret == 0) {
2238 struct h1s *h1s = h1c->h1s;
2239
Christopher Faulet6b81df72019-10-01 22:08:43 +02002240 if (h1s && h1s->cs && h1s->cs->data_cb->wake) {
2241 TRACE_POINT(H1_EV_STRM_WAKE, h1c->conn, h1s);
Olivier Houchard75159a92018-12-03 18:46:09 +01002242 ret = h1s->cs->data_cb->wake(h1s->cs);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002243 }
Olivier Houchard75159a92018-12-03 18:46:09 +01002244 }
2245 return ret;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002246}
2247
Christopher Fauletb8093cf2019-01-03 16:27:28 +01002248/* Connection timeout management. The principle is that if there's no receipt
2249 * nor sending for a certain amount of time, the connection is closed.
2250 */
2251static struct task *h1_timeout_task(struct task *t, void *context, unsigned short state)
2252{
2253 struct h1c *h1c = context;
2254 int expired = tick_is_expired(t->expire, now_ms);
2255
Christopher Faulet6b81df72019-10-01 22:08:43 +02002256 TRACE_POINT(H1_EV_H1C_WAKE, h1c ? h1c->conn : NULL);
2257
2258 if (!expired && h1c) {
2259 TRACE_DEVEL("leaving (not expired)", H1_EV_H1C_WAKE, h1c->conn);
Christopher Fauletb8093cf2019-01-03 16:27:28 +01002260 return t;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002261 }
Christopher Fauletb8093cf2019-01-03 16:27:28 +01002262
Olivier Houchard3f795f72019-04-17 22:51:06 +02002263 task_destroy(t);
Christopher Fauletb8093cf2019-01-03 16:27:28 +01002264
2265 if (!h1c) {
2266 /* resources were already deleted */
Christopher Faulet6b81df72019-10-01 22:08:43 +02002267 TRACE_DEVEL("leaving (not more h1c)", H1_EV_H1C_WAKE);
Christopher Fauletb8093cf2019-01-03 16:27:28 +01002268 return NULL;
2269 }
2270
2271 h1c->task = NULL;
2272 /* If a stream is still attached to the mux, just set an error and wait
2273 * for the stream's timeout. Otherwise, release the mux. This is only ok
2274 * because same timeouts are used.
2275 */
Christopher Faulet6b81df72019-10-01 22:08:43 +02002276 if (h1c->h1s && h1c->h1s->cs) {
Christopher Fauletb8093cf2019-01-03 16:27:28 +01002277 h1c->flags |= H1C_F_CS_ERROR;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002278 TRACE_STATE("error on h1c, h1s still attached (expired)", H1_EV_H1C_WAKE|H1_EV_H1C_ERR, h1c->conn, h1c->h1s);
2279 }
Christopher Fauletb8093cf2019-01-03 16:27:28 +01002280 else
Christopher Faulet73c12072019-04-08 11:23:22 +02002281 h1_release(h1c);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002282
Christopher Fauletb8093cf2019-01-03 16:27:28 +01002283 return NULL;
2284}
2285
Christopher Faulet51dbc942018-09-13 09:05:15 +02002286/*******************************************/
2287/* functions below are used by the streams */
2288/*******************************************/
Christopher Faulet73c12072019-04-08 11:23:22 +02002289
Christopher Faulet51dbc942018-09-13 09:05:15 +02002290/*
2291 * Attach a new stream to a connection
2292 * (Used for outgoing connections)
2293 */
Olivier Houchardf502aca2018-12-14 19:42:40 +01002294static struct conn_stream *h1_attach(struct connection *conn, struct session *sess)
Christopher Faulet51dbc942018-09-13 09:05:15 +02002295{
Willy Tarreau3d2ee552018-12-19 14:12:10 +01002296 struct h1c *h1c = conn->ctx;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002297 struct conn_stream *cs = NULL;
2298 struct h1s *h1s;
2299
Christopher Faulet6b81df72019-10-01 22:08:43 +02002300 TRACE_ENTER(H1_EV_STRM_NEW, conn);
2301 if (h1c->flags & H1C_F_CS_ERROR) {
2302 TRACE_DEVEL("leaving on h1c error", H1_EV_STRM_NEW|H1_EV_STRM_END|H1_EV_STRM_ERR, conn);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002303 goto end;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002304 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02002305
2306 cs = cs_new(h1c->conn);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002307 if (!cs) {
2308 TRACE_DEVEL("leaving on CS allocation failure", H1_EV_STRM_NEW|H1_EV_STRM_END|H1_EV_STRM_ERR, conn);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002309 goto end;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002310 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02002311
Olivier Houchardf502aca2018-12-14 19:42:40 +01002312 h1s = h1s_create(h1c, cs, sess);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002313 if (h1s == NULL) {
2314 TRACE_DEVEL("leaving on h1s creation failure", H1_EV_STRM_NEW|H1_EV_STRM_END|H1_EV_STRM_ERR, conn);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002315 goto end;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002316 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02002317
Christopher Faulet6b81df72019-10-01 22:08:43 +02002318 TRACE_LEAVE(H1_EV_STRM_NEW, conn, h1s);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002319 return cs;
2320 end:
2321 cs_free(cs);
2322 return NULL;
2323}
2324
2325/* Retrieves a valid conn_stream from this connection, or returns NULL. For
2326 * this mux, it's easy as we can only store a single conn_stream.
2327 */
2328static const struct conn_stream *h1_get_first_cs(const struct connection *conn)
2329{
Willy Tarreau3d2ee552018-12-19 14:12:10 +01002330 struct h1c *h1c = conn->ctx;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002331 struct h1s *h1s = h1c->h1s;
2332
2333 if (h1s)
2334 return h1s->cs;
2335
2336 return NULL;
2337}
2338
Christopher Faulet73c12072019-04-08 11:23:22 +02002339static void h1_destroy(void *ctx)
Christopher Faulet51dbc942018-09-13 09:05:15 +02002340{
Christopher Faulet73c12072019-04-08 11:23:22 +02002341 struct h1c *h1c = ctx;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002342
Christopher Faulet6b81df72019-10-01 22:08:43 +02002343 TRACE_POINT(H1_EV_H1C_END, h1c->conn);
Christopher Faulet39a96ee2019-04-08 10:52:21 +02002344 if (!h1c->h1s || !h1c->conn || h1c->conn->ctx != h1c)
Christopher Faulet73c12072019-04-08 11:23:22 +02002345 h1_release(h1c);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002346}
2347
2348/*
2349 * Detach the stream from the connection and possibly release the connection.
2350 */
2351static void h1_detach(struct conn_stream *cs)
2352{
2353 struct h1s *h1s = cs->ctx;
2354 struct h1c *h1c;
Olivier Houchardf502aca2018-12-14 19:42:40 +01002355 struct session *sess;
Olivier Houchard8a786902018-12-15 16:05:40 +01002356 int is_not_first;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002357
Christopher Faulet6b81df72019-10-01 22:08:43 +02002358 TRACE_ENTER(H1_EV_STRM_END, h1s ? h1s->h1c->conn : NULL, h1s);
2359
Christopher Faulet51dbc942018-09-13 09:05:15 +02002360 cs->ctx = NULL;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002361 if (!h1s) {
2362 TRACE_LEAVE(H1_EV_STRM_END);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002363 return;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002364 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02002365
Olivier Houchardf502aca2018-12-14 19:42:40 +01002366 sess = h1s->sess;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002367 h1c = h1s->h1c;
2368 h1s->cs = NULL;
2369
Olivier Houchard8a786902018-12-15 16:05:40 +01002370 is_not_first = h1s->flags & H1S_F_NOT_FIRST;
2371 h1s_destroy(h1s);
2372
Christopher Fauletaaa67bc2019-12-05 10:23:37 +01002373 if (conn_is_back(h1c->conn) && (h1c->flags & H1C_F_CS_IDLE)) {
Christopher Fauletf1204b82019-07-19 14:51:06 +02002374 /* If there are any excess server data in the input buffer,
2375 * release it and close the connection ASAP (some data may
2376 * remain in the output buffer). This happens if a server sends
2377 * invalid responses. So in such case, we don't want to reuse
2378 * the connection
Christopher Faulet03627242019-07-19 11:34:08 +02002379 */
Christopher Fauletf1204b82019-07-19 14:51:06 +02002380 if (b_data(&h1c->ibuf)) {
2381 h1_release_buf(h1c, &h1c->ibuf);
Christopher Fauletaaa67bc2019-12-05 10:23:37 +01002382 h1c->flags = (h1c->flags & ~H1C_F_CS_IDLE) | H1C_F_CS_SHUTW_NOW;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002383 TRACE_DEVEL("remaining data on detach, kill connection", H1_EV_STRM_END|H1_EV_H1C_END);
Christopher Fauletf1204b82019-07-19 14:51:06 +02002384 goto release;
2385 }
Christopher Faulet03627242019-07-19 11:34:08 +02002386
Christopher Faulet9400a392018-11-23 23:10:39 +01002387 /* Never ever allow to reuse a connection from a non-reuse backend */
Olivier Houchard44d59142018-12-13 18:46:22 +01002388 if ((h1c->px->options & PR_O_REUSE_MASK) == PR_O_REUSE_NEVR)
Christopher Faulet9400a392018-11-23 23:10:39 +01002389 h1c->conn->flags |= CO_FL_PRIVATE;
2390
Olivier Houchard44d59142018-12-13 18:46:22 +01002391 if (!(h1c->conn->owner)) {
Olivier Houchardf502aca2018-12-14 19:42:40 +01002392 h1c->conn->owner = sess;
Olivier Houchard351411f2018-12-27 17:20:54 +01002393 if (!session_add_conn(sess, h1c->conn, h1c->conn->target)) {
2394 h1c->conn->owner = NULL;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002395 if (!srv_add_to_idle_list(objt_server(h1c->conn->target), h1c->conn)) {
Olivier Houchard351411f2018-12-27 17:20:54 +01002396 /* The server doesn't want it, let's kill the connection right away */
Olivier Houchard12ffab02020-02-14 13:23:45 +01002397 h1c->conn->mux->destroy(h1c);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002398 TRACE_DEVEL("outgoing connection killed", H1_EV_STRM_END|H1_EV_H1C_END);
2399 goto end;
2400 }
Willy Tarreau493d9dc2020-02-28 15:21:42 +01002401 h1c->conn->xprt->subscribe(h1c->conn, h1c->conn->xprt_ctx, SUB_RETRY_RECV, &h1c->wait_event);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002402 TRACE_DEVEL("reusable idle connection", H1_EV_STRM_END, h1c->conn);
2403 goto end;
Olivier Houchard351411f2018-12-27 17:20:54 +01002404 }
Olivier Houchard44d59142018-12-13 18:46:22 +01002405 }
Olivier Houcharda4d4fdf2018-12-14 19:27:06 +01002406 if (h1c->conn->owner == sess) {
2407 int ret = session_check_idle_conn(sess, h1c->conn);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002408 if (ret == -1) {
Olivier Houcharda4d4fdf2018-12-14 19:27:06 +01002409 /* The connection got destroyed, let's leave */
Christopher Faulet6b81df72019-10-01 22:08:43 +02002410 TRACE_DEVEL("outgoing connection killed", H1_EV_STRM_END|H1_EV_H1C_END);
2411 goto end;
2412 }
Olivier Houcharda4d4fdf2018-12-14 19:27:06 +01002413 else if (ret == 1) {
2414 /* The connection was added to the server list,
2415 * wake the task so we can subscribe to events
2416 */
Willy Tarreau493d9dc2020-02-28 15:21:42 +01002417 h1c->conn->xprt->subscribe(h1c->conn, h1c->conn->xprt_ctx, SUB_RETRY_RECV, &h1c->wait_event);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002418 TRACE_DEVEL("reusable idle connection", H1_EV_STRM_END, h1c->conn);
2419 goto end;
Olivier Houcharda4d4fdf2018-12-14 19:27:06 +01002420 }
Christopher Faulet6b81df72019-10-01 22:08:43 +02002421 TRACE_DEVEL("connection in idle session list", H1_EV_STRM_END, h1c->conn);
Olivier Houcharda4d4fdf2018-12-14 19:27:06 +01002422 }
Christopher Faulet9400a392018-11-23 23:10:39 +01002423 /* we're in keep-alive with an idle connection, monitor it if not already done */
Olivier Houchard44d59142018-12-13 18:46:22 +01002424 if (LIST_ISEMPTY(&h1c->conn->list)) {
Christopher Faulet9400a392018-11-23 23:10:39 +01002425 struct server *srv = objt_server(h1c->conn->target);
2426
2427 if (srv) {
2428 if (h1c->conn->flags & CO_FL_PRIVATE)
2429 LIST_ADD(&srv->priv_conns[tid], &h1c->conn->list);
Olivier Houchard8a786902018-12-15 16:05:40 +01002430 else if (is_not_first)
Christopher Faulet9400a392018-11-23 23:10:39 +01002431 LIST_ADD(&srv->safe_conns[tid], &h1c->conn->list);
2432 else
2433 LIST_ADD(&srv->idle_conns[tid], &h1c->conn->list);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002434 TRACE_DEVEL("connection in idle server list", H1_EV_STRM_END, h1c->conn);
Christopher Faulet9400a392018-11-23 23:10:39 +01002435 }
2436 }
2437 }
2438
Christopher Fauletf1204b82019-07-19 14:51:06 +02002439 release:
Christopher Faulet3ac0f432019-06-28 17:41:42 +02002440 /* We don't want to close right now unless the connection is in error or shut down for writes */
Christopher Faulet37243bc2019-07-11 15:40:25 +02002441 if ((h1c->flags & (H1C_F_CS_ERROR|H1C_F_CS_SHUTDOWN|H1C_F_UPG_H2C)) ||
2442 (h1c->conn->flags & (CO_FL_ERROR|CO_FL_SOCK_WR_SH)) ||
2443 ((h1c->flags & H1C_F_CS_SHUTW_NOW) && !b_data(&h1c->obuf)) ||
Christopher Faulet6b81df72019-10-01 22:08:43 +02002444 !h1c->conn->owner) {
2445 TRACE_DEVEL("killing dead connection", H1_EV_STRM_END, h1c->conn);
Christopher Faulet73c12072019-04-08 11:23:22 +02002446 h1_release(h1c);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002447 }
Christopher Fauletb8093cf2019-01-03 16:27:28 +01002448 else {
Willy Tarreau493d9dc2020-02-28 15:21:42 +01002449 h1c->conn->xprt->subscribe(h1c->conn, h1c->conn->xprt_ctx, SUB_RETRY_RECV, &h1c->wait_event);
Christopher Fauletb8093cf2019-01-03 16:27:28 +01002450 if (h1c->task) {
2451 h1c->task->expire = TICK_ETERNITY;
2452 if (b_data(&h1c->obuf)) {
Christopher Faulet666a0c42019-01-08 11:12:04 +01002453 h1c->task->expire = tick_add(now_ms, ((h1c->flags & (H1C_F_CS_SHUTW_NOW|H1C_F_CS_SHUTDOWN))
Christopher Fauletb8093cf2019-01-03 16:27:28 +01002454 ? h1c->shut_timeout
2455 : h1c->timeout));
2456 task_queue(h1c->task);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002457 TRACE_DEVEL("refreshing connection's timeout", H1_EV_STRM_END, h1c->conn);
Christopher Fauletb8093cf2019-01-03 16:27:28 +01002458 }
2459 }
2460 }
Christopher Faulet6b81df72019-10-01 22:08:43 +02002461 end:
2462 TRACE_LEAVE(H1_EV_STRM_END);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002463}
2464
2465
2466static void h1_shutr(struct conn_stream *cs, enum cs_shr_mode mode)
2467{
2468 struct h1s *h1s = cs->ctx;
Christopher Faulet7f366362019-04-08 10:51:20 +02002469 struct h1c *h1c;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002470
2471 if (!h1s)
2472 return;
Christopher Faulet7f366362019-04-08 10:51:20 +02002473 h1c = h1s->h1c;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002474
Christopher Faulet6b81df72019-10-01 22:08:43 +02002475 TRACE_ENTER(H1_EV_STRM_SHUT, h1c->conn, h1s);
2476
2477 if (cs->flags & CS_FL_KILL_CONN) {
2478 TRACE_STATE("stream wants to kill the connection", H1_EV_STRM_SHUT, h1c->conn, h1s);
2479 goto do_shutr;
2480 }
2481 if (h1c->conn->flags & (CO_FL_ERROR | CO_FL_SOCK_RD_SH | CO_FL_SOCK_WR_SH)) {
2482 TRACE_STATE("shutdown on connection (error|rd_sh|wr_sh)", H1_EV_STRM_SHUT, h1c->conn, h1s);
Christopher Faulet7f366362019-04-08 10:51:20 +02002483 goto do_shutr;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002484 }
Christopher Faulet7f366362019-04-08 10:51:20 +02002485
Christopher Faulet6b81df72019-10-01 22:08:43 +02002486 if ((h1c->flags & H1C_F_UPG_H2C) || (h1s->flags & H1S_F_WANT_KAL)) {
2487 TRACE_STATE("keep connection alive (upg_h2c|want_kal)", H1_EV_STRM_SHUT, h1c->conn, h1s);
2488 goto end;
2489 }
Christopher Fauletf2824e62018-10-01 12:12:37 +02002490
Christopher Faulet7f366362019-04-08 10:51:20 +02002491 do_shutr:
Christopher Faulet51dbc942018-09-13 09:05:15 +02002492 /* NOTE: Be sure to handle abort (cf. h2_shutr) */
2493 if (cs->flags & CS_FL_SHR)
Christopher Faulet6b81df72019-10-01 22:08:43 +02002494 goto end;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002495 if (conn_xprt_ready(cs->conn) && cs->conn->xprt->shutr)
Olivier Houcharde179d0e2019-03-21 18:27:17 +01002496 cs->conn->xprt->shutr(cs->conn, cs->conn->xprt_ctx,
Christopher Faulet6b81df72019-10-01 22:08:43 +02002497 (mode == CS_SHR_DRAIN));
Christopher Faulet6b81df72019-10-01 22:08:43 +02002498 end:
2499 TRACE_LEAVE(H1_EV_STRM_SHUT, h1c->conn, h1s);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002500}
2501
2502static void h1_shutw(struct conn_stream *cs, enum cs_shw_mode mode)
2503{
2504 struct h1s *h1s = cs->ctx;
2505 struct h1c *h1c;
2506
2507 if (!h1s)
2508 return;
2509 h1c = h1s->h1c;
2510
Christopher Faulet6b81df72019-10-01 22:08:43 +02002511 TRACE_ENTER(H1_EV_STRM_SHUT, h1c->conn, h1s);
2512
2513 if (cs->flags & CS_FL_KILL_CONN) {
2514 TRACE_STATE("stream wants to kill the connection", H1_EV_STRM_SHUT, h1c->conn, h1s);
Christopher Faulet7f366362019-04-08 10:51:20 +02002515 goto do_shutw;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002516 }
2517 if (h1c->conn->flags & (CO_FL_ERROR | CO_FL_SOCK_RD_SH | CO_FL_SOCK_WR_SH)) {
2518 TRACE_STATE("shutdown on connection (error|rd_sh|wr_sh)", H1_EV_STRM_SHUT, h1c->conn, h1s);
2519 goto do_shutw;
2520 }
Olivier Houchardd2e88c72018-12-19 15:55:23 +01002521
Christopher Faulet0ef372a2019-04-08 10:57:20 +02002522 if ((h1c->flags & H1C_F_UPG_H2C) ||
Christopher Faulet6b81df72019-10-01 22:08:43 +02002523 ((h1s->flags & H1S_F_WANT_KAL) && h1s->req.state == H1_MSG_DONE && h1s->res.state == H1_MSG_DONE)) {
2524 TRACE_STATE("keep connection alive (upg_h2c|want_kal)", H1_EV_STRM_SHUT, h1c->conn, h1s);
2525 goto end;
2526 }
Christopher Fauletf2824e62018-10-01 12:12:37 +02002527
Christopher Faulet7f366362019-04-08 10:51:20 +02002528 do_shutw:
Christopher Faulet51dbc942018-09-13 09:05:15 +02002529 h1c->flags |= H1C_F_CS_SHUTW_NOW;
2530 if ((cs->flags & CS_FL_SHW) || b_data(&h1c->obuf))
Christopher Faulet6b81df72019-10-01 22:08:43 +02002531 goto end;
Christopher Faulet666a0c42019-01-08 11:12:04 +01002532 h1_shutw_conn(cs->conn, mode);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002533 end:
2534 TRACE_LEAVE(H1_EV_STRM_SHUT, h1c->conn, h1s);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002535}
2536
Christopher Faulet666a0c42019-01-08 11:12:04 +01002537static void h1_shutw_conn(struct connection *conn, enum cs_shw_mode mode)
Christopher Faulet51dbc942018-09-13 09:05:15 +02002538{
Willy Tarreau3d2ee552018-12-19 14:12:10 +01002539 struct h1c *h1c = conn->ctx;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002540
Christopher Faulet6b81df72019-10-01 22:08:43 +02002541 TRACE_ENTER(H1_EV_STRM_SHUT, conn, h1c->h1s);
Christopher Faulet666a0c42019-01-08 11:12:04 +01002542 conn_xprt_shutw(conn);
2543 conn_sock_shutw(conn, (mode == CS_SHW_NORMAL));
Christopher Faulet7b109f22019-12-05 11:18:31 +01002544 h1c->flags = (h1c->flags & ~H1C_F_CS_SHUTW_NOW) | H1C_F_CS_SHUTDOWN;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002545 TRACE_LEAVE(H1_EV_STRM_SHUT, conn, h1c->h1s);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002546}
2547
Willy Tarreauee1a6fc2020-01-17 07:52:13 +01002548/* Called from the upper layer, to unsubscribe <es> from events <event_type>
2549 * The <es> pointer is not allowed to differ from the one passed to the
2550 * subscribe() call. It always returns zero.
2551 */
2552static int h1_unsubscribe(struct conn_stream *cs, int event_type, struct wait_event *es)
Christopher Faulet51dbc942018-09-13 09:05:15 +02002553{
Christopher Faulet51dbc942018-09-13 09:05:15 +02002554 struct h1s *h1s = cs->ctx;
2555
2556 if (!h1s)
2557 return 0;
2558
Willy Tarreau1b0d4d12020-01-16 11:03:19 +01002559 BUG_ON(event_type & ~(SUB_RETRY_SEND|SUB_RETRY_RECV));
Willy Tarreauee1a6fc2020-01-17 07:52:13 +01002560 BUG_ON(h1s->subs && h1s->subs != es);
Willy Tarreau1b0d4d12020-01-16 11:03:19 +01002561
Willy Tarreauee1a6fc2020-01-17 07:52:13 +01002562 es->events &= ~event_type;
2563 if (!es->events)
Willy Tarreau1b0d4d12020-01-16 11:03:19 +01002564 h1s->subs = NULL;
2565
2566 if (event_type & SUB_RETRY_RECV)
Christopher Faulet6b81df72019-10-01 22:08:43 +02002567 TRACE_DEVEL("unsubscribe(recv)", H1_EV_STRM_RECV, h1s->h1c->conn, h1s);
Willy Tarreau1b0d4d12020-01-16 11:03:19 +01002568
2569 if (event_type & SUB_RETRY_SEND)
Christopher Faulet6b81df72019-10-01 22:08:43 +02002570 TRACE_DEVEL("unsubscribe(send)", H1_EV_STRM_SEND, h1s->h1c->conn, h1s);
Willy Tarreau1b0d4d12020-01-16 11:03:19 +01002571
Christopher Faulet51dbc942018-09-13 09:05:15 +02002572 return 0;
2573}
2574
Willy Tarreauee1a6fc2020-01-17 07:52:13 +01002575/* Called from the upper layer, to subscribe <es> to events <event_type>. The
2576 * event subscriber <es> is not allowed to change from a previous call as long
2577 * as at least one event is still subscribed. The <event_type> must only be a
2578 * combination of SUB_RETRY_RECV and SUB_RETRY_SEND. It always returns 0, unless
2579 * the conn_stream <cs> was already detached, in which case it will return -1.
2580 */
2581static int h1_subscribe(struct conn_stream *cs, int event_type, struct wait_event *es)
Christopher Faulet51dbc942018-09-13 09:05:15 +02002582{
Christopher Faulet51dbc942018-09-13 09:05:15 +02002583 struct h1s *h1s = cs->ctx;
Christopher Faulet51bb1852019-09-04 10:22:34 +02002584 struct h1c *h1c;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002585
2586 if (!h1s)
2587 return -1;
2588
Willy Tarreau1b0d4d12020-01-16 11:03:19 +01002589 BUG_ON(event_type & ~(SUB_RETRY_SEND|SUB_RETRY_RECV));
Willy Tarreauee1a6fc2020-01-17 07:52:13 +01002590 BUG_ON(h1s->subs && h1s->subs != es);
Willy Tarreau1b0d4d12020-01-16 11:03:19 +01002591
Willy Tarreauee1a6fc2020-01-17 07:52:13 +01002592 es->events |= event_type;
2593 h1s->subs = es;
Willy Tarreau1b0d4d12020-01-16 11:03:19 +01002594
2595 if (event_type & SUB_RETRY_RECV)
Christopher Faulet6b81df72019-10-01 22:08:43 +02002596 TRACE_DEVEL("subscribe(recv)", H1_EV_STRM_RECV, h1s->h1c->conn, h1s);
Willy Tarreau1b0d4d12020-01-16 11:03:19 +01002597
2598
Christopher Faulet6b81df72019-10-01 22:08:43 +02002599 if (event_type & SUB_RETRY_SEND) {
2600 TRACE_DEVEL("subscribe(send)", H1_EV_STRM_SEND, h1s->h1c->conn, h1s);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002601 /*
2602 * If the conn_stream attempt to subscribe, and the
2603 * mux isn't subscribed to the connection, then it
2604 * probably means the connection wasn't established
2605 * yet, so we have to subscribe.
2606 */
2607 h1c = h1s->h1c;
2608 if (!(h1c->wait_event.events & SUB_RETRY_SEND))
2609 h1c->conn->xprt->subscribe(h1c->conn,
2610 h1c->conn->xprt_ctx,
2611 SUB_RETRY_SEND,
2612 &h1c->wait_event);
2613 }
Christopher Faulet6b81df72019-10-01 22:08:43 +02002614 return 0;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002615}
2616
2617/* Called from the upper layer, to receive data */
2618static size_t h1_rcv_buf(struct conn_stream *cs, struct buffer *buf, size_t count, int flags)
2619{
2620 struct h1s *h1s = cs->ctx;
Christopher Faulet539e0292018-11-19 10:40:09 +01002621 struct h1c *h1c = h1s->h1c;
Olivier Houcharddedd3062019-07-26 15:12:38 +02002622 struct h1m *h1m = (!conn_is_back(cs->conn) ? &h1s->req : &h1s->res);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002623 size_t ret = 0;
2624
Christopher Faulet6b81df72019-10-01 22:08:43 +02002625 TRACE_ENTER(H1_EV_STRM_RECV, h1c->conn, h1s,, (size_t[]){count});
Christopher Faulet539e0292018-11-19 10:40:09 +01002626 if (!(h1c->flags & H1C_F_IN_ALLOC))
Christopher Faulet30db3d72019-05-17 15:35:33 +02002627 ret = h1_process_input(h1c, buf, count);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002628 else
2629 TRACE_DEVEL("h1c ibuf not allocated", H1_EV_H1C_RECV|H1_EV_H1C_BLK, h1c->conn);
Christopher Faulet1be55f92018-10-02 15:59:23 +02002630
Christopher Faulete18777b2019-04-16 16:46:36 +02002631 if (flags & CO_RFL_BUF_FLUSH) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02002632 if (h1m->state != H1_MSG_TUNNEL || (h1m->state == H1_MSG_DATA && h1m->curr_len)) {
Christopher Faulete18777b2019-04-16 16:46:36 +02002633 h1s->flags |= H1S_F_BUF_FLUSH;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002634 TRACE_STATE("flush stream's buffer", H1_EV_STRM_RECV, h1c->conn, h1s);
2635 }
Christopher Faulete18777b2019-04-16 16:46:36 +02002636 }
Olivier Houchard02bac852019-08-22 18:34:25 +02002637 else {
Christopher Faulet6b81df72019-10-01 22:08:43 +02002638 if (h1s->flags & H1S_F_SPLICED_DATA) {
2639 h1s->flags &= ~H1S_F_SPLICED_DATA;
2640 TRACE_STATE("disable splicing", H1_EV_STRM_RECV, h1c->conn, h1s);
2641 }
2642 if (h1m->state != H1_MSG_DONE && !(h1c->wait_event.events & SUB_RETRY_RECV))
Willy Tarreau2c1f37d2020-03-04 17:50:02 +01002643 h1c->conn->xprt->subscribe(h1c->conn, h1c->conn->xprt_ctx, SUB_RETRY_RECV, &h1c->wait_event);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002644 }
Christopher Faulet6b81df72019-10-01 22:08:43 +02002645 TRACE_LEAVE(H1_EV_STRM_RECV, h1c->conn, h1s,, (size_t[]){ret});
Christopher Faulet51dbc942018-09-13 09:05:15 +02002646 return ret;
2647}
2648
2649
2650/* Called from the upper layer, to send data */
2651static size_t h1_snd_buf(struct conn_stream *cs, struct buffer *buf, size_t count, int flags)
2652{
2653 struct h1s *h1s = cs->ctx;
2654 struct h1c *h1c;
Christopher Faulet5d37dac2018-11-22 10:58:42 +01002655 size_t total = 0;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002656
2657 if (!h1s)
Christopher Faulet5d37dac2018-11-22 10:58:42 +01002658 return 0;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002659 h1c = h1s->h1c;
Olivier Houchard305d5ab2019-07-24 18:07:06 +02002660
Christopher Faulet6b81df72019-10-01 22:08:43 +02002661 TRACE_ENTER(H1_EV_STRM_SEND, h1c->conn, h1s,, (size_t[]){count});
2662
Olivier Houchard305d5ab2019-07-24 18:07:06 +02002663 /* If we're not connected yet, or we're waiting for a handshake, stop
2664 * now, as we don't want to remove everything from the channel buffer
2665 * before we're sure we can send it.
2666 */
Willy Tarreau911db9b2020-01-23 16:27:54 +01002667 if (h1c->conn->flags & CO_FL_WAIT_XPRT) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02002668 TRACE_LEAVE(H1_EV_STRM_SEND, h1c->conn, h1s);
Christopher Faulet3b88b8d2018-10-26 17:36:03 +02002669 return 0;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002670 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02002671
Christopher Faulet46230362019-10-17 16:04:20 +02002672 /* Inherit some flags from the upper layer */
2673 h1c->flags &= ~(H1C_F_CO_MSG_MORE|H1C_F_CO_STREAMER);
2674 if (flags & CO_SFL_MSG_MORE)
2675 h1c->flags |= H1C_F_CO_MSG_MORE;
2676 if (flags & CO_SFL_STREAMER)
2677 h1c->flags |= H1C_F_CO_STREAMER;
2678
Christopher Fauletc31872f2019-06-04 22:09:36 +02002679 while (count) {
Christopher Faulet5d37dac2018-11-22 10:58:42 +01002680 size_t ret = 0;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002681
Christopher Faulet5d37dac2018-11-22 10:58:42 +01002682 if (!(h1c->flags & (H1C_F_OUT_FULL|H1C_F_OUT_ALLOC)))
2683 ret = h1_process_output(h1c, buf, count);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002684 else
2685 TRACE_DEVEL("h1c obuf not allocated", H1_EV_STRM_SEND|H1_EV_H1S_BLK, h1c->conn, h1s);
Christopher Faulet5d37dac2018-11-22 10:58:42 +01002686 if (!ret)
2687 break;
2688 total += ret;
Christopher Fauletc31872f2019-06-04 22:09:36 +02002689 count -= ret;
Olivier Houchard68787ef2020-01-15 19:13:32 +01002690 if ((h1c->wait_event.events & SUB_RETRY_SEND) || !h1_send(h1c))
Christopher Faulet5d37dac2018-11-22 10:58:42 +01002691 break;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002692 }
Christopher Fauletf96c3222018-11-20 18:38:01 +01002693
Christopher Faulet6b81df72019-10-01 22:08:43 +02002694 TRACE_LEAVE(H1_EV_STRM_SEND, h1c->conn, h1s,, (size_t[]){total});
Christopher Faulet5d37dac2018-11-22 10:58:42 +01002695 return total;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002696}
2697
Willy Tarreaue5733232019-05-22 19:24:06 +02002698#if defined(USE_LINUX_SPLICE)
Christopher Faulet1be55f92018-10-02 15:59:23 +02002699/* Send and get, using splicing */
2700static int h1_rcv_pipe(struct conn_stream *cs, struct pipe *pipe, unsigned int count)
2701{
2702 struct h1s *h1s = cs->ctx;
2703 struct h1m *h1m = (!conn_is_back(cs->conn) ? &h1s->req : &h1s->res);
2704 int ret = 0;
2705
Christopher Faulet6b81df72019-10-01 22:08:43 +02002706 TRACE_ENTER(H1_EV_STRM_RECV, cs->conn, h1s,, (size_t[]){count});
2707
Christopher Faulet9fa40c42019-11-05 16:24:27 +01002708 if ((h1m->flags & H1_MF_CHNK) || (h1m->state != H1_MSG_DATA && h1m->state != H1_MSG_TUNNEL)) {
Christopher Faulete18777b2019-04-16 16:46:36 +02002709 h1s->flags &= ~(H1S_F_BUF_FLUSH|H1S_F_SPLICED_DATA);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002710 TRACE_STATE("disable splicing on !(msg_data|msg_tunnel)", H1_EV_STRM_RECV, cs->conn, h1s);
2711 if (!(h1s->h1c->wait_event.events & SUB_RETRY_RECV)) {
2712 TRACE_STATE("restart receiving data, subscribing", H1_EV_STRM_RECV, cs->conn, h1s);
Christopher Faulet1146f972019-05-29 14:35:24 +02002713 cs->conn->xprt->subscribe(cs->conn, cs->conn->xprt_ctx, SUB_RETRY_RECV, &h1s->h1c->wait_event);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002714 }
Christopher Faulete18777b2019-04-16 16:46:36 +02002715 goto end;
2716 }
2717
Willy Tarreaufbdf90a2019-06-03 13:42:54 +02002718 if (h1s_data_pending(h1s)) {
Christopher Fauletd44ad5b2018-11-19 21:52:12 +01002719 h1s->flags |= H1S_F_BUF_FLUSH;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002720 TRACE_STATE("flush input buffer before splicing", H1_EV_STRM_RECV, cs->conn, h1s);
Christopher Faulet1be55f92018-10-02 15:59:23 +02002721 goto end;
Christopher Fauletd44ad5b2018-11-19 21:52:12 +01002722 }
2723
2724 h1s->flags &= ~H1S_F_BUF_FLUSH;
2725 h1s->flags |= H1S_F_SPLICED_DATA;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002726 TRACE_STATE("enable splicing", H1_EV_STRM_RECV, cs->conn, h1s);
Christopher Faulet1be55f92018-10-02 15:59:23 +02002727 if (h1m->state == H1_MSG_DATA && count > h1m->curr_len)
2728 count = h1m->curr_len;
Olivier Houcharde179d0e2019-03-21 18:27:17 +01002729 ret = cs->conn->xprt->rcv_pipe(cs->conn, cs->conn->xprt_ctx, pipe, count);
Christopher Faulet1146f972019-05-29 14:35:24 +02002730 if (h1m->state == H1_MSG_DATA && ret >= 0) {
Christopher Faulet1be55f92018-10-02 15:59:23 +02002731 h1m->curr_len -= ret;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002732 if (!h1m->curr_len) {
Christopher Faulete18777b2019-04-16 16:46:36 +02002733 h1s->flags &= ~(H1S_F_BUF_FLUSH|H1S_F_SPLICED_DATA);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002734 TRACE_STATE("disable splicing on !curr_len", H1_EV_STRM_RECV, cs->conn, h1s);
2735 }
Christopher Faulete18777b2019-04-16 16:46:36 +02002736 }
2737
Christopher Faulet1be55f92018-10-02 15:59:23 +02002738 end:
Christopher Faulet038ad812019-04-17 11:03:22 +02002739 if (conn_xprt_read0_pending(cs->conn)) {
Willy Tarreauc493c9c2019-06-03 14:18:22 +02002740 h1s->flags |= H1S_F_REOS;
Christopher Fauletf3158e92019-11-15 11:14:23 +01002741 h1s->flags &= ~(H1S_F_BUF_FLUSH|H1S_F_SPLICED_DATA);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002742 TRACE_STATE("read0 on connection", H1_EV_STRM_RECV, cs->conn, h1s);
Christopher Faulet038ad812019-04-17 11:03:22 +02002743 }
Christopher Faulet6b81df72019-10-01 22:08:43 +02002744
Willy Tarreau17ccd1a2020-01-17 16:19:34 +01002745 if (h1m->state != H1_MSG_DATA || !h1m->curr_len)
2746 cs->flags &= ~CS_FL_MAY_SPLICE;
2747
Christopher Faulet6b81df72019-10-01 22:08:43 +02002748 TRACE_LEAVE(H1_EV_STRM_RECV, cs->conn, h1s);
Christopher Faulet1be55f92018-10-02 15:59:23 +02002749 return ret;
Christopher Faulet1be55f92018-10-02 15:59:23 +02002750}
2751
2752static int h1_snd_pipe(struct conn_stream *cs, struct pipe *pipe)
2753{
2754 struct h1s *h1s = cs->ctx;
Christopher Faulet1be55f92018-10-02 15:59:23 +02002755 int ret = 0;
2756
Christopher Faulet6b81df72019-10-01 22:08:43 +02002757 TRACE_ENTER(H1_EV_STRM_SEND, cs->conn, h1s,, (size_t[]){pipe->data});
2758
Christopher Faulet1be55f92018-10-02 15:59:23 +02002759 if (b_data(&h1s->h1c->obuf))
2760 goto end;
2761
Olivier Houcharde179d0e2019-03-21 18:27:17 +01002762 ret = cs->conn->xprt->snd_pipe(cs->conn, cs->conn->xprt_ctx, pipe);
Christopher Faulet1be55f92018-10-02 15:59:23 +02002763 end:
Christopher Fauletd44ad5b2018-11-19 21:52:12 +01002764 if (pipe->data) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02002765 if (!(h1s->h1c->wait_event.events & SUB_RETRY_SEND)) {
2766 TRACE_STATE("more data to send, subscribing", H1_EV_STRM_SEND, cs->conn, h1s);
Olivier Houcharde179d0e2019-03-21 18:27:17 +01002767 cs->conn->xprt->subscribe(cs->conn, cs->conn->xprt_ctx, SUB_RETRY_SEND, &h1s->h1c->wait_event);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002768 }
Christopher Fauletd44ad5b2018-11-19 21:52:12 +01002769 }
Christopher Faulet6b81df72019-10-01 22:08:43 +02002770
2771 TRACE_LEAVE(H1_EV_STRM_SEND, cs->conn, h1s);
Christopher Faulet1be55f92018-10-02 15:59:23 +02002772 return ret;
2773}
2774#endif
2775
Olivier Houchard9b8e11e2019-10-25 16:19:26 +02002776static int h1_ctl(struct connection *conn, enum mux_ctl_type mux_ctl, void *output)
2777{
2778 int ret = 0;
2779 switch (mux_ctl) {
2780 case MUX_STATUS:
Willy Tarreau911db9b2020-01-23 16:27:54 +01002781 if (!(conn->flags & CO_FL_WAIT_XPRT))
Olivier Houchard9b8e11e2019-10-25 16:19:26 +02002782 ret |= MUX_STATUS_READY;
2783 return ret;
2784 default:
2785 return -1;
2786 }
2787}
2788
Olivier Houcharda8f6b432018-12-21 15:20:29 +01002789/* for debugging with CLI's "show fd" command */
2790static void h1_show_fd(struct buffer *msg, struct connection *conn)
2791{
2792 struct h1c *h1c = conn->ctx;
2793 struct h1s *h1s = h1c->h1s;
2794
Christopher Fauletf376a312019-01-04 15:16:06 +01002795 chunk_appendf(msg, " h1c.flg=0x%x .sub=%d .ibuf=%u@%p+%u/%u .obuf=%u@%p+%u/%u",
2796 h1c->flags, h1c->wait_event.events,
Olivier Houcharda8f6b432018-12-21 15:20:29 +01002797 (unsigned int)b_data(&h1c->ibuf), b_orig(&h1c->ibuf),
2798 (unsigned int)b_head_ofs(&h1c->ibuf), (unsigned int)b_size(&h1c->ibuf),
2799 (unsigned int)b_data(&h1c->obuf), b_orig(&h1c->obuf),
2800 (unsigned int)b_head_ofs(&h1c->obuf), (unsigned int)b_size(&h1c->obuf));
2801
2802 if (h1s) {
2803 char *method;
2804
2805 if (h1s->meth < HTTP_METH_OTHER)
2806 method = http_known_methods[h1s->meth].ptr;
2807 else
2808 method = "UNKNOWN";
2809 chunk_appendf(msg, " h1s=%p h1s.flg=0x%x .req.state=%s .res.state=%s"
2810 " .meth=%s status=%d",
2811 h1s, h1s->flags,
2812 h1m_state_str(h1s->req.state),
2813 h1m_state_str(h1s->res.state), method, h1s->status);
2814 if (h1s->cs)
2815 chunk_appendf(msg, " .cs.flg=0x%08x .cs.data=%p",
2816 h1s->cs->flags, h1s->cs->data);
2817 }
Christopher Faulet98fbe952019-07-22 16:18:24 +02002818}
2819
2820
2821/* Add an entry in the headers map. Returns -1 on error and 0 on success. */
2822static int add_hdr_case_adjust(const char *from, const char *to, char **err)
2823{
2824 struct h1_hdr_entry *entry;
2825
2826 /* Be sure there is a non-empty <to> */
2827 if (!strlen(to)) {
2828 memprintf(err, "expect <to>");
2829 return -1;
2830 }
2831
2832 /* Be sure only the case differs between <from> and <to> */
2833 if (strcasecmp(from, to)) {
2834 memprintf(err, "<from> and <to> must not differ execpt the case");
2835 return -1;
2836 }
2837
2838 /* Be sure <from> does not already existsin the tree */
2839 if (ebis_lookup(&hdrs_map.map, from)) {
2840 memprintf(err, "duplicate entry '%s'", from);
2841 return -1;
2842 }
2843
2844 /* Create the entry and insert it in the tree */
2845 entry = malloc(sizeof(*entry));
2846 if (!entry) {
2847 memprintf(err, "out of memory");
2848 return -1;
2849 }
2850
2851 entry->node.key = strdup(from);
2852 entry->name.ptr = strdup(to);
2853 entry->name.len = strlen(to);
2854 if (!entry->node.key || !entry->name.ptr) {
2855 free(entry->node.key);
Tim Duesterhused526372020-03-05 17:56:33 +01002856 istfree(&entry->name);
Christopher Faulet98fbe952019-07-22 16:18:24 +02002857 free(entry);
2858 memprintf(err, "out of memory");
2859 return -1;
2860 }
2861 ebis_insert(&hdrs_map.map, &entry->node);
2862 return 0;
2863}
2864
2865static void h1_hdeaders_case_adjust_deinit()
2866{
2867 struct ebpt_node *node, *next;
2868 struct h1_hdr_entry *entry;
2869
2870 node = ebpt_first(&hdrs_map.map);
2871 while (node) {
2872 next = ebpt_next(node);
2873 ebpt_delete(node);
2874 entry = container_of(node, struct h1_hdr_entry, node);
2875 free(entry->node.key);
Tim Duesterhused526372020-03-05 17:56:33 +01002876 istfree(&entry->name);
Christopher Faulet98fbe952019-07-22 16:18:24 +02002877 free(entry);
2878 node = next;
2879 }
2880 free(hdrs_map.name);
Olivier Houcharda8f6b432018-12-21 15:20:29 +01002881}
2882
Christopher Faulet98fbe952019-07-22 16:18:24 +02002883static int cfg_h1_headers_case_adjust_postparser()
2884{
2885 FILE *file = NULL;
2886 char *c, *key_beg, *key_end, *value_beg, *value_end;
2887 char *err;
2888 int rc, line = 0, err_code = 0;
2889
2890 if (!hdrs_map.name)
2891 goto end;
2892
2893 file = fopen(hdrs_map.name, "r");
2894 if (!file) {
2895 ha_alert("config : h1-outgoing-headers-case-adjust-file '%s': failed to open file.\n",
2896 hdrs_map.name);
2897 err_code |= ERR_ALERT | ERR_FATAL;
2898 goto end;
2899 }
2900
2901 /* now parse all lines. The file may contain only two header name per
2902 * line, separated by spaces. All heading and trailing spaces will be
2903 * ignored. Lines starting with a # are ignored.
2904 */
2905 while (fgets(trash.area, trash.size, file) != NULL) {
2906 line++;
2907 c = trash.area;
2908
2909 /* strip leading spaces and tabs */
2910 while (*c == ' ' || *c == '\t')
2911 c++;
2912
2913 /* ignore emptu lines, or lines beginning with a dash */
2914 if (*c == '#' || *c == '\0' || *c == '\r' || *c == '\n')
2915 continue;
2916
2917 /* look for the end of the key */
2918 key_beg = c;
2919 while (*c != '\0' && *c != ' ' && *c != '\t' && *c != '\n' && *c != '\r')
2920 c++;
2921 key_end = c;
2922
2923 /* strip middle spaces and tabs */
2924 while (*c == ' ' || *c == '\t')
2925 c++;
2926
2927 /* look for the end of the value, it is the end of the line */
2928 value_beg = c;
2929 while (*c && *c != '\n' && *c != '\r')
2930 c++;
2931 value_end = c;
2932
2933 /* trim possibly trailing spaces and tabs */
2934 while (value_end > value_beg && (value_end[-1] == ' ' || value_end[-1] == '\t'))
2935 value_end--;
2936
2937 /* set final \0 and check entries */
2938 *key_end = '\0';
2939 *value_end = '\0';
2940
2941 err = NULL;
2942 rc = add_hdr_case_adjust(key_beg, value_beg, &err);
2943 if (rc < 0) {
Christopher Faulet98fbe952019-07-22 16:18:24 +02002944 ha_alert("config : h1-outgoing-headers-case-adjust-file '%s' : %s at line %d.\n",
2945 hdrs_map.name, err, line);
2946 err_code |= ERR_ALERT | ERR_FATAL;
Christopher Fauletcac5c092019-07-30 16:51:42 +02002947 free(err);
Christopher Faulet98fbe952019-07-22 16:18:24 +02002948 goto end;
2949 }
2950 if (rc > 0) {
Christopher Faulet98fbe952019-07-22 16:18:24 +02002951 ha_warning("config : h1-outgoing-headers-case-adjust-file '%s' : %s at line %d.\n",
2952 hdrs_map.name, err, line);
2953 err_code |= ERR_WARN;
Christopher Fauletcac5c092019-07-30 16:51:42 +02002954 free(err);
Christopher Faulet98fbe952019-07-22 16:18:24 +02002955 }
2956 }
2957
2958 end:
2959 if (file)
2960 fclose(file);
2961 hap_register_post_deinit(h1_hdeaders_case_adjust_deinit);
2962 return err_code;
2963}
2964
2965
2966/* config parser for global "h1-outgoing-header-case-adjust" */
2967static int cfg_parse_h1_header_case_adjust(char **args, int section_type, struct proxy *curpx,
2968 struct proxy *defpx, const char *file, int line,
2969 char **err)
2970{
2971 if (too_many_args(2, args, err, NULL))
2972 return -1;
2973 if (!*(args[1]) || !*(args[2])) {
2974 memprintf(err, "'%s' expects <from> and <to> as argument.", args[0]);
2975 return -1;
2976 }
2977 return add_hdr_case_adjust(args[1], args[2], err);
2978}
2979
2980/* config parser for global "h1-outgoing-headers-case-adjust-file" */
2981static int cfg_parse_h1_headers_case_adjust_file(char **args, int section_type, struct proxy *curpx,
2982 struct proxy *defpx, const char *file, int line,
2983 char **err)
2984{
2985 if (too_many_args(1, args, err, NULL))
2986 return -1;
2987 if (!*(args[1])) {
2988 memprintf(err, "'%s' expects <file> as argument.", args[0]);
2989 return -1;
2990 }
2991 free(hdrs_map.name);
2992 hdrs_map.name = strdup(args[1]);
2993 return 0;
2994}
2995
2996
2997/* config keyword parsers */
2998static struct cfg_kw_list cfg_kws = {{ }, {
2999 { CFG_GLOBAL, "h1-case-adjust", cfg_parse_h1_header_case_adjust },
3000 { CFG_GLOBAL, "h1-case-adjust-file", cfg_parse_h1_headers_case_adjust_file },
3001 { 0, NULL, NULL },
3002 }
3003};
3004
3005INITCALL1(STG_REGISTER, cfg_register_keywords, &cfg_kws);
3006REGISTER_CONFIG_POSTPARSER("h1-headers-map", cfg_h1_headers_case_adjust_postparser);
3007
3008
Christopher Faulet51dbc942018-09-13 09:05:15 +02003009/****************************************/
3010/* MUX initialization and instanciation */
3011/****************************************/
3012
3013/* The mux operations */
Willy Tarreauf77a1582019-01-10 10:00:08 +01003014static const struct mux_ops mux_h1_ops = {
Christopher Faulet51dbc942018-09-13 09:05:15 +02003015 .init = h1_init,
3016 .wake = h1_wake,
3017 .attach = h1_attach,
3018 .get_first_cs = h1_get_first_cs,
Christopher Fauletfeb11742018-11-29 15:12:34 +01003019 .get_cs_info = h1_get_cs_info,
Christopher Faulet51dbc942018-09-13 09:05:15 +02003020 .detach = h1_detach,
3021 .destroy = h1_destroy,
3022 .avail_streams = h1_avail_streams,
Willy Tarreau00f18a32019-01-26 12:19:01 +01003023 .used_streams = h1_used_streams,
Christopher Faulet51dbc942018-09-13 09:05:15 +02003024 .rcv_buf = h1_rcv_buf,
3025 .snd_buf = h1_snd_buf,
Willy Tarreaue5733232019-05-22 19:24:06 +02003026#if defined(USE_LINUX_SPLICE)
Christopher Faulet1be55f92018-10-02 15:59:23 +02003027 .rcv_pipe = h1_rcv_pipe,
3028 .snd_pipe = h1_snd_pipe,
3029#endif
Christopher Faulet51dbc942018-09-13 09:05:15 +02003030 .subscribe = h1_subscribe,
3031 .unsubscribe = h1_unsubscribe,
3032 .shutr = h1_shutr,
3033 .shutw = h1_shutw,
Olivier Houcharda8f6b432018-12-21 15:20:29 +01003034 .show_fd = h1_show_fd,
Olivier Houchard9a86fcb2018-12-11 16:47:14 +01003035 .reset = h1_reset,
Olivier Houchard9b8e11e2019-10-25 16:19:26 +02003036 .ctl = h1_ctl,
Christopher Faulet9f38f5a2019-04-03 09:53:32 +02003037 .flags = MX_FL_HTX,
Willy Tarreau0a7a4fb2019-05-22 11:36:54 +02003038 .name = "H1",
Christopher Faulet51dbc942018-09-13 09:05:15 +02003039};
3040
3041
3042/* this mux registers default HTX proto */
3043static struct mux_proto_list mux_proto_htx =
Christopher Fauletc985f6c2019-07-15 11:42:52 +02003044{ .token = IST(""), .mode = PROTO_MODE_HTTP, .side = PROTO_SIDE_BOTH, .mux = &mux_h1_ops };
Christopher Faulet51dbc942018-09-13 09:05:15 +02003045
Willy Tarreau0108d902018-11-25 19:14:37 +01003046INITCALL1(STG_REGISTER, register_mux_proto, &mux_proto_htx);
3047
Christopher Faulet51dbc942018-09-13 09:05:15 +02003048/*
3049 * Local variables:
3050 * c-indent-level: 8
3051 * c-basic-offset: 8
3052 * End:
3053 */