blob: 0421bbad54ba7031bffc056b70ec8bdf666165a0 [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;
Olivier Houchardbdb00c52020-03-12 15:30:17 +01001057 struct proxy *other_end;
Christopher Faulete44769b2018-11-29 23:01:45 +01001058 union error_snapshot_ctx ctx;
1059
Olivier Houchardbdb00c52020-03-12 15:30:17 +01001060 if (h1s->cs && h1s->cs->data) {
1061 if (sess == NULL)
1062 sess = si_strm(h1s->cs->data)->sess;
1063 if (!(h1m->flags & H1_MF_RESP))
1064 other_end = si_strm(h1s->cs->data)->be;
1065 else
1066 other_end = sess->fe;
1067 } else
1068 other_end = NULL;
Christopher Faulete44769b2018-11-29 23:01:45 +01001069
1070 /* http-specific part now */
1071 ctx.h1.state = h1m->state;
1072 ctx.h1.c_flags = h1c->flags;
1073 ctx.h1.s_flags = h1s->flags;
1074 ctx.h1.m_flags = h1m->flags;
1075 ctx.h1.m_clen = h1m->curr_len;
1076 ctx.h1.m_blen = h1m->body_len;
1077
1078 proxy_capture_error(proxy, !!(h1m->flags & H1_MF_RESP), other_end,
1079 h1c->conn->target, sess, buf, 0, 0,
Christopher Fauletaa75b3d2018-12-05 16:20:40 +01001080 (h1m->err_pos >= 0) ? h1m->err_pos : h1m->next,
1081 &ctx, h1_show_error_snapshot);
Christopher Faulete44769b2018-11-29 23:01:45 +01001082}
1083
Christopher Fauletadb22202018-12-12 10:32:09 +01001084/* Emit the chunksize followed by a CRLF in front of data of the buffer
1085 * <buf>. It goes backwards and starts with the byte before the buffer's
1086 * head. The caller is responsible for ensuring there is enough room left before
1087 * the buffer's head for the string.
1088 */
1089static void h1_emit_chunk_size(struct buffer *buf, size_t chksz)
1090{
1091 char *beg, *end;
1092
1093 beg = end = b_head(buf);
1094 *--beg = '\n';
1095 *--beg = '\r';
1096 do {
1097 *--beg = hextab[chksz & 0xF];
1098 } while (chksz >>= 4);
1099 buf->head -= (end - beg);
1100 b_add(buf, end - beg);
1101}
1102
1103/* Emit a CRLF after the data of the buffer <buf>. The caller is responsible for
1104 * ensuring there is enough room left in the buffer for the string. */
1105static void h1_emit_chunk_crlf(struct buffer *buf)
1106{
1107 *(b_peek(buf, b_data(buf))) = '\r';
1108 *(b_peek(buf, b_data(buf) + 1)) = '\n';
1109 b_add(buf, 2);
1110}
1111
Christopher Faulet129817b2018-09-20 16:14:40 +02001112/*
Christopher Fauletc62c2b92019-03-28 11:41:39 +01001113 * Switch the request to tunnel mode. This function must only be called for
Christopher Fauletf3158e92019-11-15 11:14:23 +01001114 * CONNECT requests. On the client side, if the response is not finished, the
1115 * mux is mark as busy on input.
Christopher Fauletc62c2b92019-03-28 11:41:39 +01001116 */
1117static void h1_set_req_tunnel_mode(struct h1s *h1s)
1118{
1119 h1s->req.flags &= ~(H1_MF_XFER_LEN|H1_MF_CLEN|H1_MF_CHNK);
1120 h1s->req.state = H1_MSG_TUNNEL;
Christopher Fauletf3158e92019-11-15 11:14:23 +01001121 TRACE_STATE("switch H1 request in tunnel mode", H1_EV_TX_DATA|H1_EV_TX_HDRS, h1s->h1c->conn, h1s);
1122
Christopher Faulet76014fd2019-12-10 11:47:22 +01001123 if (!conn_is_back(h1s->h1c->conn)) {
1124 h1s->flags &= ~H1S_F_PARSING_DONE;
1125 if (h1s->res.state < H1_MSG_DONE) {
1126 h1s->h1c->flags |= H1C_F_IN_BUSY;
1127 TRACE_STATE("switch h1c in busy mode", H1_EV_RX_DATA|H1_EV_H1C_BLK, h1s->h1c->conn, h1s);
1128 }
Christopher Faulet6b81df72019-10-01 22:08:43 +02001129 }
Christopher Fauletf3158e92019-11-15 11:14:23 +01001130 else if (h1s->h1c->flags & H1C_F_IN_BUSY) {
1131 h1s->h1c->flags &= ~H1C_F_IN_BUSY;
1132 tasklet_wakeup(h1s->h1c->wait_event.tasklet);
1133 TRACE_STATE("h1c no more busy", H1_EV_RX_DATA|H1_EV_H1C_BLK|H1_EV_H1C_WAKE, h1s->h1c->conn, h1s);
1134 }
Christopher Fauletc62c2b92019-03-28 11:41:39 +01001135}
1136
1137/*
1138 * Switch the response to tunnel mode. This function must only be called on
Christopher Fauletf3158e92019-11-15 11:14:23 +01001139 * successfull replies to CONNECT requests or on protocol switching. In this
1140 * last case, this function takes care to switch the request to tunnel mode if
1141 * possible. On the server side, if the request is not finished, the mux is mark
1142 * as busy on input.
Christopher Fauletc62c2b92019-03-28 11:41:39 +01001143 */
1144static void h1_set_res_tunnel_mode(struct h1s *h1s)
1145{
Christopher Fauletf3158e92019-11-15 11:14:23 +01001146
Christopher Fauletc62c2b92019-03-28 11:41:39 +01001147 h1s->res.flags &= ~(H1_MF_XFER_LEN|H1_MF_CLEN|H1_MF_CHNK);
1148 h1s->res.state = H1_MSG_TUNNEL;
Christopher Fauletf3158e92019-11-15 11:14:23 +01001149 TRACE_STATE("switch H1 response in tunnel mode", H1_EV_TX_DATA|H1_EV_TX_HDRS, h1s->h1c->conn, h1s);
1150
Christopher Faulet76014fd2019-12-10 11:47:22 +01001151 if (conn_is_back(h1s->h1c->conn)) {
1152 h1s->flags &= ~H1S_F_PARSING_DONE;
1153 /* On protocol switching, switch the request to tunnel mode if it is in
1154 * DONE state. Otherwise we will wait the end of the request to switch
1155 * it in tunnel mode.
1156 */
1157 if (h1s->req.state < H1_MSG_DONE) {
1158 h1s->h1c->flags |= H1C_F_IN_BUSY;
1159 TRACE_STATE("switch h1c in busy mode", H1_EV_RX_DATA|H1_EV_H1C_BLK, h1s->h1c->conn, h1s);
1160 }
1161 else if (h1s->status == 101 && h1s->req.state == H1_MSG_DONE) {
1162 h1s->req.flags &= ~(H1_MF_XFER_LEN|H1_MF_CLEN|H1_MF_CHNK);
1163 h1s->req.state = H1_MSG_TUNNEL;
1164 TRACE_STATE("switch H1 request in tunnel mode", H1_EV_TX_DATA|H1_EV_TX_HDRS, h1s->h1c->conn, h1s);
1165 }
Christopher Faulet6b81df72019-10-01 22:08:43 +02001166 }
Christopher Fauletf3158e92019-11-15 11:14:23 +01001167 else if (h1s->h1c->flags & H1C_F_IN_BUSY) {
1168 h1s->h1c->flags &= ~H1C_F_IN_BUSY;
1169 tasklet_wakeup(h1s->h1c->wait_event.tasklet);
1170 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 +01001171 }
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001172}
1173
1174/*
Christopher Faulet129817b2018-09-20 16:14:40 +02001175 * Parse HTTP/1 headers. It returns the number of bytes parsed if > 0, or 0 if
Christopher Fauletf2824e62018-10-01 12:12:37 +02001176 * it couldn't proceed. Parsing errors are reported by setting H1S_F_*_ERROR
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001177 * flag. If relies on the function http_parse_msg_hdrs() to do the parsing.
Christopher Faulet129817b2018-09-20 16:14:40 +02001178 */
Christopher Faulet9768c262018-10-22 09:34:31 +02001179static size_t h1_process_headers(struct h1s *h1s, struct h1m *h1m, struct htx *htx,
Christopher Fauletf2824e62018-10-01 12:12:37 +02001180 struct buffer *buf, size_t *ofs, size_t max)
Christopher Faulet129817b2018-09-20 16:14:40 +02001181{
Christopher Fauletf1ba18d2018-11-26 21:37:08 +01001182 union h1_sl h1sl;
Christopher Faulet129817b2018-09-20 16:14:40 +02001183 int ret = 0;
1184
Christopher Faulet6b81df72019-10-01 22:08:43 +02001185 TRACE_ENTER(H1_EV_RX_DATA|H1_EV_RX_HDRS, h1s->h1c->conn, h1s,, (size_t[]){max});
1186
Christopher Fauleteec96b52019-09-25 09:10:46 +02001187 if (!(h1s->flags & H1S_F_NOT_FIRST) && !(h1m->flags & H1_MF_RESP)) {
Christopher Faulet0ef372a2019-04-08 10:57:20 +02001188 /* Try to match H2 preface before parsing the request headers. */
1189 ret = b_isteq(buf, 0, b_data(buf), ist(H2_CONN_PREFACE));
Christopher Faulet6b81df72019-10-01 22:08:43 +02001190 if (ret > 0) {
Christopher Faulet0ef372a2019-04-08 10:57:20 +02001191 goto h2c_upgrade;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001192 }
Christopher Faulet0ef372a2019-04-08 10:57:20 +02001193 }
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001194 else {
1195 if (h1s->meth == HTTP_METH_CONNECT)
1196 h1m->flags |= H1_MF_METH_CONNECT;
1197 if (h1s->meth == HTTP_METH_HEAD)
1198 h1m->flags |= H1_MF_METH_HEAD;
1199 }
Christopher Faulet0ef372a2019-04-08 10:57:20 +02001200
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001201 ret = h1_parse_msg_hdrs(h1m, &h1sl, htx, buf, *ofs, max);
1202 if (!ret) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02001203 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 +02001204 if (htx->flags & HTX_FL_PARSING_ERROR) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02001205 if (!(h1m->flags & H1_MF_RESP)) {
1206 h1s->flags |= H1S_F_REQ_ERROR;
1207 TRACE_USER("rejected H1 request", H1_EV_RX_DATA|H1_EV_RX_HDRS|H1_EV_H1S_ERR, h1s->h1c->conn, h1s);
1208 }
1209 else {
1210 h1s->flags |= H1S_F_RES_ERROR;
1211 TRACE_USER("rejected H1 response", H1_EV_RX_DATA|H1_EV_RX_HDRS|H1_EV_H1S_ERR, h1s->h1c->conn, h1s);
1212 }
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001213 h1s->cs->flags |= CS_FL_EOI;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001214 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 +02001215 h1_capture_bad_message(h1s->h1c, h1s, h1m, buf);
1216 }
Christopher Faulet129817b2018-09-20 16:14:40 +02001217 goto end;
1218 }
1219
Christopher Faulet486498c2019-10-11 14:22:00 +02001220 if (h1m->err_pos >= 0) {
1221 /* Maybe we found an error during the parsing while we were
1222 * configured not to block on that, so we have to capture it
1223 * now.
1224 */
1225 TRACE_STATE("Ignored parsing error", H1_EV_RX_DATA|H1_EV_RX_HDRS, h1s->h1c->conn, h1s);
1226 h1_capture_bad_message(h1s->h1c, h1s, h1m, buf);
1227 }
1228
Christopher Faulet129817b2018-09-20 16:14:40 +02001229 if (!(h1m->flags & H1_MF_RESP)) {
Christopher Fauletf1ba18d2018-11-26 21:37:08 +01001230 h1s->meth = h1sl.rq.meth;
Christopher Fauletf3158e92019-11-15 11:14:23 +01001231 if (h1m->state == H1_MSG_TUNNEL)
Christopher Fauletc62c2b92019-03-28 11:41:39 +01001232 h1_set_req_tunnel_mode(h1s);
Christopher Faulet129817b2018-09-20 16:14:40 +02001233 }
1234 else {
Christopher Fauletf1ba18d2018-11-26 21:37:08 +01001235 h1s->status = h1sl.st.status;
Christopher Fauletf3158e92019-11-15 11:14:23 +01001236 if (h1m->state == H1_MSG_TUNNEL)
Christopher Fauletc62c2b92019-03-28 11:41:39 +01001237 h1_set_res_tunnel_mode(h1s);
Christopher Fauletf1ba18d2018-11-26 21:37:08 +01001238 }
Christopher Fauletb992af02019-03-28 15:42:24 +01001239 h1_process_input_conn_mode(h1s, h1m, htx);
Christopher Faulet9768c262018-10-22 09:34:31 +02001240 *ofs += ret;
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001241
Christopher Faulet129817b2018-09-20 16:14:40 +02001242 end:
Christopher Faulet6b81df72019-10-01 22:08:43 +02001243 TRACE_LEAVE(H1_EV_RX_DATA|H1_EV_RX_HDRS, h1s->h1c->conn, h1s,, (size_t[]){ret});
Christopher Faulet129817b2018-09-20 16:14:40 +02001244 return ret;
Christopher Fauletf2824e62018-10-01 12:12:37 +02001245
Christopher Faulet0ef372a2019-04-08 10:57:20 +02001246 h2c_upgrade:
1247 h1s->h1c->flags |= H1C_F_UPG_H2C;
Christopher Faulet8e9e3ef2019-05-17 09:14:10 +02001248 h1s->cs->flags |= CS_FL_EOI;
Christopher Faulet0ef372a2019-04-08 10:57:20 +02001249 htx->flags |= HTX_FL_UPGRADE;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001250 TRACE_DEVEL("leaving on H2 update", H1_EV_RX_DATA|H1_EV_RX_HDRS|H1_EV_RX_EOI, h1s->h1c->conn, h1s);
1251 return 0;
Christopher Faulet129817b2018-09-20 16:14:40 +02001252}
1253
1254/*
Christopher Fauletf2824e62018-10-01 12:12:37 +02001255 * Parse HTTP/1 body. It returns the number of bytes parsed if > 0, or 0 if it
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001256 * couldn't proceed. Parsing errors are reported by setting H1S_F_*_ERROR flag.
1257 * If relies on the function http_parse_msg_data() to do the parsing.
Christopher Faulet129817b2018-09-20 16:14:40 +02001258 */
Christopher Fauletaf542632019-10-01 21:52:49 +02001259static size_t h1_process_data(struct h1s *h1s, struct h1m *h1m, struct htx **htx,
Christopher Fauletaa75b3d2018-12-05 16:20:40 +01001260 struct buffer *buf, size_t *ofs, size_t max,
Christopher Faulet30db3d72019-05-17 15:35:33 +02001261 struct buffer *htxbuf)
Christopher Faulet129817b2018-09-20 16:14:40 +02001262{
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001263 int ret;
Christopher Faulet30db3d72019-05-17 15:35:33 +02001264
Christopher Faulet6b81df72019-10-01 22:08:43 +02001265 TRACE_ENTER(H1_EV_RX_DATA|H1_EV_RX_BODY, h1s->h1c->conn, h1s,, (size_t[]){max});
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001266 ret = h1_parse_msg_data(h1m, htx, buf, *ofs, max, htxbuf);
Christopher Faulet02a02532019-11-15 09:36:28 +01001267 if (!ret) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02001268 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 +01001269 if ((*htx)->flags & HTX_FL_PARSING_ERROR) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02001270 if (!(h1m->flags & H1_MF_RESP)) {
1271 h1s->flags |= H1S_F_REQ_ERROR;
1272 TRACE_USER("rejected H1 request", H1_EV_RX_DATA|H1_EV_RX_BODY|H1_EV_H1S_ERR, h1s->h1c->conn, h1s);
1273 }
1274 else {
1275 h1s->flags |= H1S_F_RES_ERROR;
1276 TRACE_USER("rejected H1 response", H1_EV_RX_DATA|H1_EV_RX_BODY|H1_EV_H1S_ERR, h1s->h1c->conn, h1s);
1277 }
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001278 h1s->cs->flags |= CS_FL_EOI;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001279 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 +02001280 h1_capture_bad_message(h1s->h1c, h1s, h1m, buf);
Christopher Faulet9768c262018-10-22 09:34:31 +02001281 }
Christopher Faulet02a02532019-11-15 09:36:28 +01001282 goto end;
Christopher Faulet129817b2018-09-20 16:14:40 +02001283 }
1284
Willy Tarreau17ccd1a2020-01-17 16:19:34 +01001285 if (h1m->state == H1_MSG_DATA && h1m->curr_len && h1s->cs)
1286 h1s->cs->flags |= CS_FL_MAY_SPLICE;
1287 else if (h1s->cs)
1288 h1s->cs->flags &= ~CS_FL_MAY_SPLICE;
1289
Christopher Faulet02a02532019-11-15 09:36:28 +01001290 *ofs += ret;
1291
1292 end:
Christopher Faulet6b81df72019-10-01 22:08:43 +02001293 TRACE_LEAVE(H1_EV_RX_DATA|H1_EV_RX_BODY, h1s->h1c->conn, h1s,, (size_t[]){ret});
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001294 return ret;
Christopher Faulet129817b2018-09-20 16:14:40 +02001295}
1296
1297/*
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001298 * Parse HTTP/1 trailers. It returns the number of bytes parsed if > 0, or 0 if
1299 * it couldn't proceed. Parsing errors are reported by setting H1S_F_*_ERROR
1300 * flag and filling h1s->err_pos and h1s->err_state fields. This functions is
1301 * responsible to update the parser state <h1m>.
1302 */
1303static size_t h1_process_trailers(struct h1s *h1s, struct h1m *h1m, struct htx *htx,
1304 struct buffer *buf, size_t *ofs, size_t max)
1305{
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001306 int ret;
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001307
Christopher Faulet6b81df72019-10-01 22:08:43 +02001308 TRACE_ENTER(H1_EV_RX_DATA|H1_EV_RX_TLRS, h1s->h1c->conn, h1s,, (size_t[]){max});
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001309 ret = h1_parse_msg_tlrs(h1m, htx, buf, *ofs, max);
Christopher Faulet02a02532019-11-15 09:36:28 +01001310 if (!ret) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02001311 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 +01001312 if (htx->flags & HTX_FL_PARSING_ERROR) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02001313 if (!(h1m->flags & H1_MF_RESP)) {
1314 h1s->flags |= H1S_F_REQ_ERROR;
1315 TRACE_USER("rejected H1 request", H1_EV_RX_DATA|H1_EV_RX_TLRS|H1_EV_H1S_ERR, h1s->h1c->conn, h1s);
1316 }
1317 else {
1318 h1s->flags |= H1S_F_RES_ERROR;
1319 TRACE_USER("rejected H1 response", H1_EV_RX_DATA|H1_EV_RX_TLRS|H1_EV_H1S_ERR, h1s->h1c->conn, h1s);
1320 }
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001321 h1s->cs->flags |= CS_FL_EOI;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001322 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 +02001323 h1_capture_bad_message(h1s->h1c, h1s, h1m, buf);
1324 }
Christopher Faulet02a02532019-11-15 09:36:28 +01001325 goto end;
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001326 }
Christopher Faulet6b81df72019-10-01 22:08:43 +02001327
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001328 *ofs += ret;
Christopher Faulet02a02532019-11-15 09:36:28 +01001329
1330 end:
Christopher Faulet6b81df72019-10-01 22:08:43 +02001331 TRACE_LEAVE(H1_EV_RX_DATA|H1_EV_RX_TLRS, h1s->h1c->conn, h1s,, (size_t[]){ret});
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001332 return ret;
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001333}
1334
1335/*
Christopher Faulet76014fd2019-12-10 11:47:22 +01001336 * Add the EOM in the HTX message. It returns 1 on success or 0 if it couldn't
1337 * proceed. This functions is responsible to update the parser state <h1m>. It
1338 * also add the flag CS_FL_EOI on the CS.
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001339 */
Christopher Faulet76014fd2019-12-10 11:47:22 +01001340static size_t h1_process_eom(struct h1s *h1s, struct h1m *h1m, struct htx *htx,
1341 struct buffer *buf, size_t *ofs, size_t max)
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001342{
Christopher Faulet76014fd2019-12-10 11:47:22 +01001343 int ret;
1344
1345 TRACE_ENTER(H1_EV_RX_DATA|H1_EV_RX_EOI, h1s->h1c->conn, h1s,, (size_t[]){max});
1346 ret = h1_parse_msg_eom(h1m, htx, max);
1347 if (!ret) {
1348 TRACE_DEVEL("leaving on missing data or error", H1_EV_RX_DATA|H1_EV_RX_EOI, h1s->h1c->conn, h1s);
1349 if (htx->flags & HTX_FL_PARSING_ERROR) {
1350 if (!(h1m->flags & H1_MF_RESP)) {
1351 h1s->flags |= H1S_F_REQ_ERROR;
1352 TRACE_USER("rejected H1 request", H1_EV_RX_DATA|H1_EV_RX_EOI|H1_EV_H1S_ERR, h1s->h1c->conn, h1s);
1353 }
1354 else {
1355 h1s->flags |= H1S_F_RES_ERROR;
1356 TRACE_USER("rejected H1 response", H1_EV_RX_DATA|H1_EV_RX_EOI|H1_EV_H1S_ERR, h1s->h1c->conn, h1s);
1357 }
1358 h1s->cs->flags |= CS_FL_EOI;
1359 TRACE_STATE("parsing error", H1_EV_RX_DATA|H1_EV_RX_EOI|H1_EV_H1S_ERR, h1s->h1c->conn, h1s);
1360 h1_capture_bad_message(h1s->h1c, h1s, h1m, buf);
1361 }
1362 goto end;
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001363 }
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001364
Christopher Faulet76014fd2019-12-10 11:47:22 +01001365 h1s->flags |= H1S_F_PARSING_DONE;
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001366 h1s->cs->flags |= CS_FL_EOI;
Christopher Faulet76014fd2019-12-10 11:47:22 +01001367 end:
1368 TRACE_LEAVE(H1_EV_RX_DATA|H1_EV_RX_EOI, h1s->h1c->conn, h1s,, (size_t[]){ret});
1369 return ret;
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001370}
1371
1372/*
Christopher Faulet129817b2018-09-20 16:14:40 +02001373 * Process incoming data. It parses data and transfer them from h1c->ibuf into
Christopher Faulet539e0292018-11-19 10:40:09 +01001374 * <buf>. It returns the number of bytes parsed and transferred if > 0, or 0 if
1375 * it couldn't proceed.
Christopher Faulet129817b2018-09-20 16:14:40 +02001376 */
Christopher Faulet30db3d72019-05-17 15:35:33 +02001377static size_t h1_process_input(struct h1c *h1c, struct buffer *buf, size_t count)
Christopher Faulet51dbc942018-09-13 09:05:15 +02001378{
Christopher Faulet539e0292018-11-19 10:40:09 +01001379 struct h1s *h1s = h1c->h1s;
Christopher Faulet129817b2018-09-20 16:14:40 +02001380 struct h1m *h1m;
Christopher Faulet9768c262018-10-22 09:34:31 +02001381 struct htx *htx;
Christopher Faulet30db3d72019-05-17 15:35:33 +02001382 size_t ret, data;
Christopher Faulet129817b2018-09-20 16:14:40 +02001383 size_t total = 0;
Christopher Fauletf2824e62018-10-01 12:12:37 +02001384 int errflag;
Christopher Faulet51dbc942018-09-13 09:05:15 +02001385
Christopher Faulet539e0292018-11-19 10:40:09 +01001386 htx = htx_from_buf(buf);
Christopher Faulet6b81df72019-10-01 22:08:43 +02001387 TRACE_ENTER(H1_EV_RX_DATA, h1c->conn, h1s, htx, (size_t[]){count});
Willy Tarreau3a6190f2018-12-16 08:29:56 +01001388
Christopher Fauletf2824e62018-10-01 12:12:37 +02001389 if (!conn_is_back(h1c->conn)) {
1390 h1m = &h1s->req;
1391 errflag = H1S_F_REQ_ERROR;
1392 }
1393 else {
1394 h1m = &h1s->res;
1395 errflag = H1S_F_RES_ERROR;
1396 }
Christopher Faulet9768c262018-10-22 09:34:31 +02001397
Christopher Faulet74027762019-02-26 14:45:05 +01001398 data = htx->data;
Christopher Faulet0e54d542019-07-04 21:22:34 +02001399 if (h1s->flags & errflag)
1400 goto end;
1401
Christopher Fauletd44ad5b2018-11-19 21:52:12 +01001402 do {
Christopher Faulet30db3d72019-05-17 15:35:33 +02001403 size_t used = htx_used_space(htx);
1404
Christopher Faulet129817b2018-09-20 16:14:40 +02001405 if (h1m->state <= H1_MSG_LAST_LF) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02001406 TRACE_PROTO("parsing message headers", H1_EV_RX_DATA|H1_EV_RX_HDRS, h1c->conn, h1s);
Christopher Faulet539e0292018-11-19 10:40:09 +01001407 ret = h1_process_headers(h1s, h1m, htx, &h1c->ibuf, &total, count);
Christopher Faulet129817b2018-09-20 16:14:40 +02001408 if (!ret)
1409 break;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001410
1411 TRACE_USER((!(h1m->flags & H1_MF_RESP) ? "rcvd H1 request headers" : "rcvd H1 response headers"),
1412 H1_EV_RX_DATA|H1_EV_RX_HDRS, h1c->conn, h1s, htx, (size_t[]){ret});
1413
Christopher Fauletb75b5ea2019-05-17 08:37:28 +02001414 if ((h1m->flags & H1_MF_RESP) &&
1415 h1s->status < 200 && (h1s->status == 100 || h1s->status >= 102)) {
1416 h1m_init_res(&h1s->res);
1417 h1m->flags |= (H1_MF_NO_PHDR|H1_MF_CLEAN_CONN_HDR);
Christopher Faulet6b81df72019-10-01 22:08:43 +02001418 TRACE_STATE("1xx response rcvd", H1_EV_RX_DATA|H1_EV_RX_HDRS, h1c->conn, h1s);
Christopher Fauletb75b5ea2019-05-17 08:37:28 +02001419 }
Christopher Faulet129817b2018-09-20 16:14:40 +02001420 }
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001421 else if (h1m->state < H1_MSG_TRAILERS) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02001422 TRACE_PROTO("parsing message payload", H1_EV_RX_DATA|H1_EV_RX_BODY, h1c->conn, h1s);
Christopher Fauletaf542632019-10-01 21:52:49 +02001423 ret = h1_process_data(h1s, h1m, &htx, &h1c->ibuf, &total, count, buf);
Christopher Faulet76014fd2019-12-10 11:47:22 +01001424 if (!ret && h1m->state != H1_MSG_DONE)
Christopher Faulet129817b2018-09-20 16:14:40 +02001425 break;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001426
1427 TRACE_PROTO((!(h1m->flags & H1_MF_RESP) ? "rcvd H1 request payload data" : "rcvd H1 response payload data"),
1428 H1_EV_RX_DATA|H1_EV_RX_BODY, h1c->conn, h1s, htx, (size_t[]){ret});
Christopher Faulet129817b2018-09-20 16:14:40 +02001429 }
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001430 else if (h1m->state == H1_MSG_TRAILERS) {
Christopher Faulet76014fd2019-12-10 11:47:22 +01001431 TRACE_PROTO("parsing message trailers", H1_EV_RX_DATA|H1_EV_RX_TLRS, h1c->conn, h1s);
1432 ret = h1_process_trailers(h1s, h1m, htx, &h1c->ibuf, &total, count);
1433 if (!ret && h1m->state != H1_MSG_DONE)
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001434 break;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001435
Christopher Faulet76014fd2019-12-10 11:47:22 +01001436 TRACE_PROTO((!(h1m->flags & H1_MF_RESP) ? "rcvd H1 request trailers" : "rcvd H1 response trailers"),
1437 H1_EV_RX_DATA|H1_EV_RX_TLRS, h1c->conn, h1s, htx, (size_t[]){ret});
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001438 }
Christopher Fauletcb55f482018-12-10 11:56:47 +01001439 else if (h1m->state == H1_MSG_DONE) {
Christopher Faulet76014fd2019-12-10 11:47:22 +01001440 if (!(h1s->flags & H1S_F_PARSING_DONE)) {
1441 if (!h1_process_eom(h1s, h1m, htx, &h1c->ibuf, &total, count))
1442 break;
1443
1444 TRACE_USER((!(h1m->flags & H1_MF_RESP) ? "H1 request fully rcvd" : "H1 response fully rcvd"),
1445 H1_EV_RX_DATA|H1_EV_RX_EOI, h1c->conn, h1s, htx);
1446 }
1447
Christopher Fauletf3158e92019-11-15 11:14:23 +01001448 if (!(h1m->flags & H1_MF_RESP) && h1s->status == 101)
1449 h1_set_req_tunnel_mode(h1s);
1450 else if (h1s->req.state < H1_MSG_DONE || h1s->res.state < H1_MSG_DONE) {
Christopher Faulet2f320ee2019-04-16 20:26:53 +02001451 h1c->flags |= H1C_F_IN_BUSY;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001452 TRACE_STATE("switch h1c in busy mode", H1_EV_RX_DATA|H1_EV_H1C_BLK, h1c->conn, h1s);
1453 }
Christopher Fauletf2824e62018-10-01 12:12:37 +02001454 break;
Christopher Fauletcb55f482018-12-10 11:56:47 +01001455 }
Christopher Fauletf2824e62018-10-01 12:12:37 +02001456 else if (h1m->state == H1_MSG_TUNNEL) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02001457 TRACE_PROTO("parsing tunneled data", H1_EV_RX_DATA, h1c->conn, h1s);
Christopher Fauletaf542632019-10-01 21:52:49 +02001458 ret = h1_process_data(h1s, h1m, &htx, &h1c->ibuf, &total, count, buf);
Christopher Faulet9768c262018-10-22 09:34:31 +02001459 if (!ret)
1460 break;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001461
1462 TRACE_PROTO((!(h1m->flags & H1_MF_RESP) ? "rcvd H1 request tunneled data" : "rcvd H1 response tunneled data"),
1463 H1_EV_RX_DATA|H1_EV_RX_EOI, h1c->conn, h1s, htx, (size_t[]){ret});
Christopher Fauletf2824e62018-10-01 12:12:37 +02001464 }
Christopher Faulet129817b2018-09-20 16:14:40 +02001465 else {
Christopher Fauletf2824e62018-10-01 12:12:37 +02001466 h1s->flags |= errflag;
Christopher Faulet129817b2018-09-20 16:14:40 +02001467 break;
1468 }
1469
Christopher Faulet30db3d72019-05-17 15:35:33 +02001470 count -= htx_used_space(htx) - used;
Christopher Faulet6b321922019-09-03 16:26:15 +02001471 } while (!(h1s->flags & errflag));
Christopher Faulet129817b2018-09-20 16:14:40 +02001472
Christopher Faulet6b81df72019-10-01 22:08:43 +02001473 if (h1s->flags & errflag) {
1474 TRACE_PROTO("parsing error", H1_EV_RX_DATA, h1c->conn, h1s);
Christopher Faulet47365272018-10-31 17:40:50 +01001475 goto parsing_err;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001476 }
Christopher Faulet129817b2018-09-20 16:14:40 +02001477
Christopher Faulet539e0292018-11-19 10:40:09 +01001478 b_del(&h1c->ibuf, total);
1479
1480 end:
Christopher Faulet27ba2dc2018-12-05 11:53:24 +01001481 htx_to_buf(htx, buf);
Christopher Faulet30db3d72019-05-17 15:35:33 +02001482 ret = htx->data - data;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001483 if ((h1c->flags & H1C_F_IN_FULL) && buf_room_for_htx_data(&h1c->ibuf)) {
Christopher Faulet539e0292018-11-19 10:40:09 +01001484 h1c->flags &= ~H1C_F_IN_FULL;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001485 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 +01001486 h1c->conn->xprt->subscribe(h1c->conn, h1c->conn->xprt_ctx, SUB_RETRY_RECV, &h1c->wait_event);
Christopher Faulet47365272018-10-31 17:40:50 +01001487 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02001488
Christopher Fauletcf56b992018-12-11 16:12:31 +01001489 h1s->cs->flags &= ~(CS_FL_RCV_MORE | CS_FL_WANT_ROOM);
1490
Christopher Fauletcdc90e92019-03-28 13:28:46 +01001491 if (!b_data(&h1c->ibuf))
Christopher Faulet539e0292018-11-19 10:40:09 +01001492 h1_release_buf(h1c, &h1c->ibuf);
Christopher Faulet6716cc22019-12-20 17:33:24 +01001493 if (h1s_data_pending(h1s) && !htx_is_empty(htx))
Christopher Fauletcf56b992018-12-11 16:12:31 +01001494 h1s->cs->flags |= CS_FL_RCV_MORE | CS_FL_WANT_ROOM;
Christopher Faulet76014fd2019-12-10 11:47:22 +01001495 else if (h1s->flags & H1S_F_REOS) {
Christopher Fauletf6ce9d62018-12-10 15:30:06 +01001496 h1s->cs->flags |= CS_FL_EOS;
Christopher Faulet466080d2019-11-15 09:50:22 +01001497 if (h1m->state == H1_MSG_TUNNEL)
1498 h1s->cs->flags |= CS_FL_EOI;
1499 else if (h1m->state > H1_MSG_LAST_LF && h1m->state < H1_MSG_DONE)
Christopher Fauletb8d2ee02019-02-25 15:29:51 +01001500 h1s->cs->flags |= CS_FL_ERROR;
Christopher Faulet539e0292018-11-19 10:40:09 +01001501 }
Christopher Fauletf6ce9d62018-12-10 15:30:06 +01001502
Christopher Faulet6b81df72019-10-01 22:08:43 +02001503 TRACE_LEAVE(H1_EV_RX_DATA, h1c->conn, h1s, htx, (size_t[]){ret});
Christopher Faulet30db3d72019-05-17 15:35:33 +02001504 return ret;
Christopher Faulet47365272018-10-31 17:40:50 +01001505
1506 parsing_err:
Christopher Faulet47365272018-10-31 17:40:50 +01001507 b_reset(&h1c->ibuf);
Christopher Faulet27ba2dc2018-12-05 11:53:24 +01001508 htx_to_buf(htx, buf);
Christopher Faulet6b81df72019-10-01 22:08:43 +02001509 TRACE_DEVEL("leaving on error", H1_EV_RX_DATA|H1_EV_STRM_ERR, h1c->conn, h1s);
Christopher Faulet9768c262018-10-22 09:34:31 +02001510 return 0;
Christopher Faulet51dbc942018-09-13 09:05:15 +02001511}
1512
Christopher Faulet129817b2018-09-20 16:14:40 +02001513/*
1514 * Process outgoing data. It parses data and transfer them from the channel buffer into
1515 * h1c->obuf. It returns the number of bytes parsed and transferred if > 0, or
1516 * 0 if it couldn't proceed.
1517 */
Christopher Faulet51dbc942018-09-13 09:05:15 +02001518static size_t h1_process_output(struct h1c *h1c, struct buffer *buf, size_t count)
1519{
Christopher Faulet129817b2018-09-20 16:14:40 +02001520 struct h1s *h1s = h1c->h1s;
1521 struct h1m *h1m;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001522 struct htx *chn_htx = NULL;
Christopher Faulet9768c262018-10-22 09:34:31 +02001523 struct htx_blk *blk;
Christopher Fauletc2518a52019-06-25 21:41:02 +02001524 struct buffer tmp;
Christopher Faulet129817b2018-09-20 16:14:40 +02001525 size_t total = 0;
Christopher Fauletf2824e62018-10-01 12:12:37 +02001526 int errflag;
Christopher Faulet51dbc942018-09-13 09:05:15 +02001527
Christopher Faulet47365272018-10-31 17:40:50 +01001528 if (!count)
1529 goto end;
Willy Tarreau37dd54d2018-12-15 14:48:31 +01001530
Christopher Faulet94b2c762019-05-24 15:28:57 +02001531 chn_htx = htxbuf(buf);
Christopher Faulet6b81df72019-10-01 22:08:43 +02001532 TRACE_ENTER(H1_EV_TX_DATA, h1c->conn, h1s, chn_htx, (size_t[]){count});
1533
Willy Tarreau37dd54d2018-12-15 14:48:31 +01001534 if (htx_is_empty(chn_htx))
1535 goto end;
Christopher Faulet9768c262018-10-22 09:34:31 +02001536
Christopher Faulet51dbc942018-09-13 09:05:15 +02001537 if (!h1_get_buf(h1c, &h1c->obuf)) {
1538 h1c->flags |= H1C_F_OUT_ALLOC;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001539 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 +02001540 goto end;
1541 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02001542
Christopher Fauletf2824e62018-10-01 12:12:37 +02001543 if (!conn_is_back(h1c->conn)) {
1544 h1m = &h1s->res;
1545 errflag = H1S_F_RES_ERROR;
1546 }
1547 else {
1548 h1m = &h1s->req;
1549 errflag = H1S_F_REQ_ERROR;
1550 }
Christopher Faulet9768c262018-10-22 09:34:31 +02001551
Christopher Faulet0e54d542019-07-04 21:22:34 +02001552 if (h1s->flags & errflag)
1553 goto end;
1554
Willy Tarreau37dd54d2018-12-15 14:48:31 +01001555 /* the htx is non-empty thus has at least one block */
Willy Tarreau3815b222018-12-11 19:50:43 +01001556 blk = htx_get_head_blk(chn_htx);
Christopher Faulet9768c262018-10-22 09:34:31 +02001557
Willy Tarreau3815b222018-12-11 19:50:43 +01001558 /* Perform some optimizations to reduce the number of buffer copies.
1559 * First, if the mux's buffer is empty and the htx area contains
1560 * exactly one data block of the same size as the requested count,
1561 * then it's possible to simply swap the caller's buffer with the
1562 * mux's output buffer and adjust offsets and length to match the
1563 * entire DATA HTX block in the middle. In this case we perform a
1564 * true zero-copy operation from end-to-end. This is the situation
1565 * that happens all the time with large files. Second, if this is not
1566 * possible, but the mux's output buffer is empty, we still have an
1567 * opportunity to avoid the copy to the intermediary buffer, by making
1568 * the intermediary buffer's area point to the output buffer's area.
1569 * In this case we want to skip the HTX header to make sure that copies
1570 * remain aligned and that this operation remains possible all the
1571 * time. This goes for headers, data blocks and any data extracted from
1572 * the HTX blocks.
Willy Tarreauc5efa332018-12-05 11:19:27 +01001573 */
1574 if (!b_data(&h1c->obuf)) {
Christopher Faulet192c6a22019-06-11 16:32:24 +02001575 if (htx_nbblks(chn_htx) == 1 &&
Willy Tarreau37dd54d2018-12-15 14:48:31 +01001576 htx_get_blk_type(blk) == HTX_BLK_DATA &&
Willy Tarreau3815b222018-12-11 19:50:43 +01001577 htx_get_blk_value(chn_htx, blk).len == count) {
1578 void *old_area = h1c->obuf.area;
1579
Christopher Faulet6b81df72019-10-01 22:08:43 +02001580 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 +01001581 h1c->obuf.area = buf->area;
Christopher Fauletc2518a52019-06-25 21:41:02 +02001582 h1c->obuf.head = sizeof(struct htx) + blk->addr;
Willy Tarreau3815b222018-12-11 19:50:43 +01001583 h1c->obuf.data = count;
1584
1585 buf->area = old_area;
1586 buf->data = buf->head = 0;
Christopher Fauletadb22202018-12-12 10:32:09 +01001587
Christopher Faulet6b81df72019-10-01 22:08:43 +02001588 chn_htx = (struct htx *)buf->area;
1589 htx_reset(chn_htx);
1590
Christopher Fauletadb22202018-12-12 10:32:09 +01001591 /* The message is chunked. We need to emit the chunk
1592 * size. We have at least the size of the struct htx to
1593 * write the chunk envelope. It should be enough.
1594 */
1595 if (h1m->flags & H1_MF_CHNK) {
1596 h1_emit_chunk_size(&h1c->obuf, count);
1597 h1_emit_chunk_crlf(&h1c->obuf);
1598 }
1599
Willy Tarreau3815b222018-12-11 19:50:43 +01001600 total += count;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001601 if (h1m->state == H1_MSG_DATA)
1602 TRACE_PROTO((!(h1m->flags & H1_MF_RESP) ? "H1 request payload data xferred" : "H1 response payload data xferred"),
Christopher Faulet08618a72019-10-08 11:59:47 +02001603 H1_EV_TX_DATA|H1_EV_TX_BODY, h1c->conn, h1s,, (size_t[]){count});
Christopher Faulet6b81df72019-10-01 22:08:43 +02001604 else
1605 TRACE_PROTO((!(h1m->flags & H1_MF_RESP) ? "H1 request tunneled data xferred" : "H1 response tunneled data xferred"),
Christopher Faulet08618a72019-10-08 11:59:47 +02001606 H1_EV_TX_DATA|H1_EV_TX_BODY, h1c->conn, h1s,, (size_t[]){count});
Willy Tarreau3815b222018-12-11 19:50:43 +01001607 goto out;
1608 }
Christopher Fauletc2518a52019-06-25 21:41:02 +02001609 tmp.area = h1c->obuf.area + h1c->obuf.head;
Willy Tarreauc5efa332018-12-05 11:19:27 +01001610 }
Christopher Fauletc2518a52019-06-25 21:41:02 +02001611 else
1612 tmp.area = trash.area;
Christopher Faulet9768c262018-10-22 09:34:31 +02001613
Christopher Fauletc2518a52019-06-25 21:41:02 +02001614 tmp.data = 0;
1615 tmp.size = b_room(&h1c->obuf);
Christopher Fauletb2e84162018-12-06 11:39:49 +01001616 while (count && !(h1s->flags & errflag) && blk) {
Christopher Faulet570d1612018-11-26 11:13:57 +01001617 struct htx_sl *sl;
Christopher Faulet9768c262018-10-22 09:34:31 +02001618 struct ist n, v;
Christopher Fauletb2e84162018-12-06 11:39:49 +01001619 enum htx_blk_type type = htx_get_blk_type(blk);
Christopher Faulet9768c262018-10-22 09:34:31 +02001620 uint32_t sz = htx_get_blksz(blk);
Christopher Fauletd9233f02019-10-14 14:01:24 +02001621 uint32_t vlen, chklen;
Christopher Faulet9768c262018-10-22 09:34:31 +02001622
Christopher Fauletb2e84162018-12-06 11:39:49 +01001623 vlen = sz;
Christopher Fauletd9233f02019-10-14 14:01:24 +02001624 if (type != HTX_BLK_DATA && vlen > count)
1625 goto full;
Christopher Faulet9768c262018-10-22 09:34:31 +02001626
Christopher Faulet94b2c762019-05-24 15:28:57 +02001627 if (type == HTX_BLK_UNUSED)
1628 goto nextblk;
Christopher Faulet9768c262018-10-22 09:34:31 +02001629
Christopher Faulet94b2c762019-05-24 15:28:57 +02001630 switch (h1m->state) {
1631 case H1_MSG_RQBEFORE:
1632 if (type != HTX_BLK_REQ_SL)
1633 goto error;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001634 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 +02001635 sl = htx_get_blk_ptr(chn_htx, blk);
Christopher Faulet570d1612018-11-26 11:13:57 +01001636 h1s->meth = sl->info.req.meth;
Christopher Faulet9768c262018-10-22 09:34:31 +02001637 h1_parse_req_vsn(h1m, sl);
Christopher Faulet53a899b2019-10-08 16:38:42 +02001638 if (!h1_format_htx_reqline(sl, &tmp))
Christopher Fauleta61aa542019-10-14 14:17:00 +02001639 goto full;
Christopher Faulet9768c262018-10-22 09:34:31 +02001640 h1m->flags |= H1_MF_XFER_LEN;
Christopher Faulet1f890dd2019-02-18 10:33:16 +01001641 if (sl->flags & HTX_SL_F_BODYLESS)
1642 h1m->flags |= H1_MF_CLEN;
Christopher Faulet9768c262018-10-22 09:34:31 +02001643 h1m->state = H1_MSG_HDR_FIRST;
Christopher Faulet129817b2018-09-20 16:14:40 +02001644 break;
Christopher Faulet129817b2018-09-20 16:14:40 +02001645
Christopher Faulet94b2c762019-05-24 15:28:57 +02001646 case H1_MSG_RPBEFORE:
1647 if (type != HTX_BLK_RES_SL)
1648 goto error;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001649 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 +02001650 sl = htx_get_blk_ptr(chn_htx, blk);
Christopher Faulet570d1612018-11-26 11:13:57 +01001651 h1s->status = sl->info.res.status;
Christopher Faulet9768c262018-10-22 09:34:31 +02001652 h1_parse_res_vsn(h1m, sl);
Christopher Faulet53a899b2019-10-08 16:38:42 +02001653 if (!h1_format_htx_stline(sl, &tmp))
Christopher Fauleta61aa542019-10-14 14:17:00 +02001654 goto full;
Christopher Faulet03599112018-11-27 11:21:21 +01001655 if (sl->flags & HTX_SL_F_XFER_LEN)
Christopher Faulet9768c262018-10-22 09:34:31 +02001656 h1m->flags |= H1_MF_XFER_LEN;
Christopher Fauletd1ebb1e2018-11-28 16:32:50 +01001657 if (sl->info.res.status < 200 &&
1658 (sl->info.res.status == 100 || sl->info.res.status >= 102))
Christopher Fauletada34b62019-05-24 16:36:43 +02001659 h1s->flags |= H1S_F_HAVE_O_CONN;
Christopher Faulet9768c262018-10-22 09:34:31 +02001660 h1m->state = H1_MSG_HDR_FIRST;
1661 break;
1662
Christopher Faulet94b2c762019-05-24 15:28:57 +02001663 case H1_MSG_HDR_FIRST:
1664 case H1_MSG_HDR_NAME:
1665 case H1_MSG_HDR_L2_LWS:
1666 if (type == HTX_BLK_EOH)
1667 goto last_lf;
1668 if (type != HTX_BLK_HDR)
1669 goto error;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001670
Christopher Faulet9768c262018-10-22 09:34:31 +02001671 h1m->state = H1_MSG_HDR_NAME;
1672 n = htx_get_blk_name(chn_htx, blk);
1673 v = htx_get_blk_value(chn_htx, blk);
1674
Christopher Faulet86d144c2019-08-14 16:32:25 +02001675 /* Skip all pseudo-headers */
1676 if (*(n.ptr) == ':')
1677 goto skip_hdr;
1678
Christopher Fauletb045bb22020-02-28 10:42:20 +01001679 if (isteq(n, ist("transfer-encoding")))
Christopher Faulet9768c262018-10-22 09:34:31 +02001680 h1_parse_xfer_enc_header(h1m, v);
Christopher Fauletb045bb22020-02-28 10:42:20 +01001681 else if (isteq(n, ist("content-length"))) {
Christopher Faulet5220ef22019-03-27 15:44:56 +01001682 /* Only skip C-L header with invalid value. */
1683 if (h1_parse_cont_len_header(h1m, &v) < 0)
Willy Tarreau27cd2232019-01-03 21:52:42 +01001684 goto skip_hdr;
1685 }
Christopher Fauletb045bb22020-02-28 10:42:20 +01001686 else if (isteq(n, ist("connection"))) {
Christopher Fauletb992af02019-03-28 15:42:24 +01001687 h1_parse_connection_header(h1m, &v);
Christopher Faulet9768c262018-10-22 09:34:31 +02001688 if (!v.len)
1689 goto skip_hdr;
1690 }
1691
Christopher Faulet67d58092019-10-02 10:51:38 +02001692 /* Skip header if same name is used to add the server name */
1693 if (!(h1m->flags & H1_MF_RESP) && h1c->px->server_id_hdr_name &&
1694 isteqi(n, ist2(h1c->px->server_id_hdr_name, h1c->px->server_id_hdr_len)))
1695 goto skip_hdr;
1696
Christopher Faulet98fbe952019-07-22 16:18:24 +02001697 /* Try to adjust the case of the header name */
1698 if (h1c->px->options2 & (PR_O2_H1_ADJ_BUGCLI|PR_O2_H1_ADJ_BUGSRV))
1699 h1_adjust_case_outgoing_hdr(h1s, h1m, &n);
Christopher Faulet53a899b2019-10-08 16:38:42 +02001700 if (!h1_format_htx_hdr(n, v, &tmp))
Christopher Fauleta61aa542019-10-14 14:17:00 +02001701 goto full;
Christopher Faulet9768c262018-10-22 09:34:31 +02001702 skip_hdr:
1703 h1m->state = H1_MSG_HDR_L2_LWS;
1704 break;
1705
Christopher Faulet94b2c762019-05-24 15:28:57 +02001706 case H1_MSG_LAST_LF:
1707 if (type != HTX_BLK_EOH)
1708 goto error;
1709 last_lf:
Christopher Fauletada34b62019-05-24 16:36:43 +02001710 h1m->state = H1_MSG_LAST_LF;
1711 if (!(h1s->flags & H1S_F_HAVE_O_CONN)) {
Christopher Faulet04f89192019-10-16 09:41:07 +02001712 /* If the reply comes from haproxy while the request is
1713 * not finished, we force the connection close. */
1714 if ((chn_htx->flags & HTX_FL_PROXY_RESP) && h1s->req.state != H1_MSG_DONE) {
1715 h1s->flags = (h1s->flags & ~H1S_F_WANT_MSK) | H1S_F_WANT_CLO;
1716 TRACE_STATE("force close mode (resp)", H1_EV_TX_DATA|H1_EV_TX_HDRS, h1s->h1c->conn, h1s);
1717 }
1718
1719 /* the conn_mode must be processed. So do it */
Christopher Fauleta110ecb2019-06-17 14:07:46 +02001720 n = ist("connection");
Christopher Fauletd1ebb1e2018-11-28 16:32:50 +01001721 v = ist("");
Christopher Fauletb992af02019-03-28 15:42:24 +01001722 h1_process_output_conn_mode(h1s, h1m, &v);
Christopher Fauletd1ebb1e2018-11-28 16:32:50 +01001723 if (v.len) {
Christopher Faulet98fbe952019-07-22 16:18:24 +02001724 /* Try to adjust the case of the header name */
1725 if (h1c->px->options2 & (PR_O2_H1_ADJ_BUGCLI|PR_O2_H1_ADJ_BUGSRV))
1726 h1_adjust_case_outgoing_hdr(h1s, h1m, &n);
Christopher Faulet53a899b2019-10-08 16:38:42 +02001727 if (!h1_format_htx_hdr(n, v, &tmp))
Christopher Fauleta61aa542019-10-14 14:17:00 +02001728 goto full;
Christopher Fauletd1ebb1e2018-11-28 16:32:50 +01001729 }
Christopher Fauletada34b62019-05-24 16:36:43 +02001730 h1s->flags |= H1S_F_HAVE_O_CONN;
Christopher Fauletd1ebb1e2018-11-28 16:32:50 +01001731 }
Willy Tarreau4710d202019-01-03 17:39:54 +01001732
Christopher Fauletc62c2b92019-03-28 11:41:39 +01001733 if ((h1s->meth != HTTP_METH_CONNECT &&
1734 (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 +01001735 (H1_MF_VER_11|H1_MF_XFER_LEN)) ||
1736 (h1s->status >= 200 && h1s->status != 204 && h1s->status != 304 &&
1737 h1s->meth != HTTP_METH_HEAD && !(h1s->meth == HTTP_METH_CONNECT && h1s->status == 200) &&
1738 (h1m->flags & (H1_MF_VER_11|H1_MF_RESP|H1_MF_CLEN|H1_MF_CHNK|H1_MF_XFER_LEN)) ==
1739 (H1_MF_VER_11|H1_MF_RESP|H1_MF_XFER_LEN))) {
Willy Tarreau4710d202019-01-03 17:39:54 +01001740 /* chunking needed but header not seen */
Christopher Faulet7a991a92019-10-04 10:23:51 +02001741 n = ist("transfer-encoding");
1742 v = ist("chunked");
1743 if (h1c->px->options2 & (PR_O2_H1_ADJ_BUGCLI|PR_O2_H1_ADJ_BUGSRV))
1744 h1_adjust_case_outgoing_hdr(h1s, h1m, &n);
Christopher Faulet53a899b2019-10-08 16:38:42 +02001745 if (!h1_format_htx_hdr(n, v, &tmp))
Christopher Fauleta61aa542019-10-14 14:17:00 +02001746 goto full;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001747 TRACE_STATE("add \"Transfer-Encoding: chunked\"", H1_EV_TX_DATA|H1_EV_TX_HDRS, h1c->conn, h1s);
Willy Tarreau4710d202019-01-03 17:39:54 +01001748 h1m->flags |= H1_MF_CHNK;
1749 }
1750
Christopher Faulet72ba6cd2019-09-24 16:20:05 +02001751 /* Now add the server name to a header (if requested) */
1752 if (!(h1s->flags & H1S_F_HAVE_SRV_NAME) &&
1753 !(h1m->flags & H1_MF_RESP) && h1c->px->server_id_hdr_name) {
1754 struct server *srv = objt_server(h1c->conn->target);
1755
1756 if (srv) {
1757 n = ist2(h1c->px->server_id_hdr_name, h1c->px->server_id_hdr_len);
1758 v = ist(srv->id);
Christopher Faulet5cef2a62019-10-02 11:06:13 +02001759
1760 /* Try to adjust the case of the header name */
1761 if (h1c->px->options2 & (PR_O2_H1_ADJ_BUGCLI|PR_O2_H1_ADJ_BUGSRV))
1762 h1_adjust_case_outgoing_hdr(h1s, h1m, &n);
Christopher Faulet53a899b2019-10-08 16:38:42 +02001763 if (!h1_format_htx_hdr(n, v, &tmp))
Christopher Fauleta61aa542019-10-14 14:17:00 +02001764 goto full;
Christopher Faulet72ba6cd2019-09-24 16:20:05 +02001765 }
Christopher Faulet6b81df72019-10-01 22:08:43 +02001766 TRACE_STATE("add server name header", H1_EV_TX_DATA|H1_EV_TX_HDRS, h1c->conn, h1s);
Christopher Faulet72ba6cd2019-09-24 16:20:05 +02001767 h1s->flags |= H1S_F_HAVE_SRV_NAME;
1768 }
1769
Christopher Fauletc2518a52019-06-25 21:41:02 +02001770 if (!chunk_memcat(&tmp, "\r\n", 2))
Christopher Fauleta61aa542019-10-14 14:17:00 +02001771 goto full;
Christopher Faulet9768c262018-10-22 09:34:31 +02001772
Christopher Faulet6b81df72019-10-01 22:08:43 +02001773 TRACE_PROTO((!(h1m->flags & H1_MF_RESP) ? "H1 request headers xferred" : "H1 response headers xferred"),
1774 H1_EV_TX_DATA|H1_EV_TX_HDRS, h1c->conn, h1s);
1775
Christopher Fauletc62c2b92019-03-28 11:41:39 +01001776 if (!(h1m->flags & H1_MF_RESP) && h1s->meth == HTTP_METH_CONNECT) {
1777 /* a CONNECT request is sent to the server. Switch it to tunnel mode. */
1778 h1_set_req_tunnel_mode(h1s);
1779 }
Christopher Fauletf3158e92019-11-15 11:14:23 +01001780 else if ((h1m->flags & H1_MF_RESP) &&
1781 ((h1s->meth == HTTP_METH_CONNECT && h1s->status == 200) || h1s->status == 101)) {
Christopher Fauletc62c2b92019-03-28 11:41:39 +01001782 /* a successfull reply to a CONNECT or a protocol switching is sent
Christopher Fauletf3158e92019-11-15 11:14:23 +01001783 * to the client. Switch the response to tunnel mode.
1784 */
Christopher Fauletc62c2b92019-03-28 11:41:39 +01001785 h1_set_res_tunnel_mode(h1s);
Christopher Faulet6b81df72019-10-01 22:08:43 +02001786 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 +01001787 }
Christopher Fauletb75b5ea2019-05-17 08:37:28 +02001788 else if ((h1m->flags & H1_MF_RESP) &&
1789 h1s->status < 200 && (h1s->status == 100 || h1s->status >= 102)) {
1790 h1m_init_res(&h1s->res);
1791 h1m->flags |= (H1_MF_NO_PHDR|H1_MF_CLEAN_CONN_HDR);
Christopher Fauletada34b62019-05-24 16:36:43 +02001792 h1s->flags &= ~H1S_F_HAVE_O_CONN;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001793 TRACE_STATE("1xx response xferred", H1_EV_TX_DATA|H1_EV_TX_HDRS, h1c->conn, h1s);
Christopher Fauletb75b5ea2019-05-17 08:37:28 +02001794 }
Christopher Faulet6b81df72019-10-01 22:08:43 +02001795 else if ((h1m->flags & H1_MF_RESP) && h1s->meth == HTTP_METH_HEAD) {
Christopher Fauletb8fc3042019-07-01 16:17:30 +02001796 h1m->state = H1_MSG_DONE;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001797 TRACE_STATE("HEAD response processed", H1_EV_TX_DATA|H1_EV_TX_HDRS, h1c->conn, h1s);
1798 }
Christopher Fauletc62c2b92019-03-28 11:41:39 +01001799 else
1800 h1m->state = H1_MSG_DATA;
Christopher Faulet9768c262018-10-22 09:34:31 +02001801 break;
1802
Christopher Faulet94b2c762019-05-24 15:28:57 +02001803 case H1_MSG_DATA:
Christopher Fauletf8db73e2019-07-04 17:12:12 +02001804 case H1_MSG_TUNNEL:
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001805 if (type == HTX_BLK_EOM) {
1806 /* Chunked message without explicit trailers */
1807 if (h1m->flags & H1_MF_CHNK) {
Christopher Fauletc2518a52019-06-25 21:41:02 +02001808 if (!chunk_memcat(&tmp, "0\r\n\r\n", 5))
Christopher Fauleta61aa542019-10-14 14:17:00 +02001809 goto full;
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001810 }
1811 goto done;
1812 }
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001813 else if (type == HTX_BLK_EOT || type == HTX_BLK_TLR) {
Christopher Faulet5433a0b2019-06-27 17:40:14 +02001814 /* If the message is not chunked, never
1815 * add the last chunk. */
1816 if ((h1m->flags & H1_MF_CHNK) && !chunk_memcat(&tmp, "0\r\n", 3))
Christopher Fauleta61aa542019-10-14 14:17:00 +02001817 goto full;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001818 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 +02001819 goto trailers;
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001820 }
Christopher Faulet94b2c762019-05-24 15:28:57 +02001821 else if (type != HTX_BLK_DATA)
1822 goto error;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001823
1824 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 +02001825
1826
1827 if (vlen > count) {
1828 /* Get the maximum amount of data we can xferred */
1829 vlen = count;
1830 }
1831
1832 chklen = 0;
1833 if (h1m->flags & H1_MF_CHNK) {
1834 chklen = b_room(&tmp);
1835 chklen = ((chklen < 16) ? 1 : (chklen < 256) ? 2 :
1836 (chklen < 4096) ? 3 : (chklen < 65536) ? 4 :
1837 (chklen < 1048576) ? 5 : 8);
1838 chklen += 4; /* 2 x CRLF */
1839 }
1840
1841 if (vlen + chklen > b_room(&tmp)) {
1842 /* too large for the buffer */
1843 if (chklen >= b_room(&tmp))
1844 goto full;
1845 vlen = b_room(&tmp) - chklen;
1846 }
Christopher Faulet9768c262018-10-22 09:34:31 +02001847 v = htx_get_blk_value(chn_htx, blk);
Christopher Fauletb2e84162018-12-06 11:39:49 +01001848 v.len = vlen;
Christopher Faulet53a899b2019-10-08 16:38:42 +02001849 if (!h1_format_htx_data(v, &tmp, !!(h1m->flags & H1_MF_CHNK)))
Christopher Fauleta61aa542019-10-14 14:17:00 +02001850 goto full;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001851
1852 if (h1m->state == H1_MSG_DATA)
1853 TRACE_PROTO((!(h1m->flags & H1_MF_RESP) ? "H1 request payload data xferred" : "H1 response payload data xferred"),
Christopher Faulet08618a72019-10-08 11:59:47 +02001854 H1_EV_TX_DATA|H1_EV_TX_BODY, h1c->conn, h1s,, (size_t[]){v.len});
Christopher Faulet6b81df72019-10-01 22:08:43 +02001855 else
1856 TRACE_PROTO((!(h1m->flags & H1_MF_RESP) ? "H1 request tunneled data xferred" : "H1 response tunneled data xferred"),
Christopher Faulet08618a72019-10-08 11:59:47 +02001857 H1_EV_TX_DATA|H1_EV_TX_BODY, h1c->conn, h1s,, (size_t[]){v.len});
Christopher Faulet9768c262018-10-22 09:34:31 +02001858 break;
1859
Christopher Faulet94b2c762019-05-24 15:28:57 +02001860 case H1_MSG_TRAILERS:
1861 if (type == HTX_BLK_EOM)
1862 goto done;
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001863 else if (type != HTX_BLK_TLR && type != HTX_BLK_EOT)
Christopher Faulet94b2c762019-05-24 15:28:57 +02001864 goto error;
1865 trailers:
Christopher Faulet9768c262018-10-22 09:34:31 +02001866 h1m->state = H1_MSG_TRAILERS;
Christopher Faulet5433a0b2019-06-27 17:40:14 +02001867 /* If the message is not chunked, ignore
1868 * trailers. It may happen with H2 messages. */
1869 if (!(h1m->flags & H1_MF_CHNK))
1870 break;
1871
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001872 if (type == HTX_BLK_EOT) {
Christopher Fauletc2518a52019-06-25 21:41:02 +02001873 if (!chunk_memcat(&tmp, "\r\n", 2))
Christopher Fauleta61aa542019-10-14 14:17:00 +02001874 goto full;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001875 TRACE_PROTO((!(h1m->flags & H1_MF_RESP) ? "H1 request trailers xferred" : "H1 response trailers xferred"),
1876 H1_EV_TX_DATA|H1_EV_TX_TLRS, h1c->conn, h1s);
Christopher Faulet32188212018-11-20 18:21:43 +01001877 }
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001878 else { // HTX_BLK_TLR
1879 n = htx_get_blk_name(chn_htx, blk);
1880 v = htx_get_blk_value(chn_htx, blk);
Christopher Faulet98fbe952019-07-22 16:18:24 +02001881
1882 /* Try to adjust the case of the header name */
1883 if (h1c->px->options2 & (PR_O2_H1_ADJ_BUGCLI|PR_O2_H1_ADJ_BUGSRV))
1884 h1_adjust_case_outgoing_hdr(h1s, h1m, &n);
Christopher Faulet53a899b2019-10-08 16:38:42 +02001885 if (!h1_format_htx_hdr(n, v, &tmp))
Christopher Fauleta61aa542019-10-14 14:17:00 +02001886 goto full;
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001887 }
Christopher Faulet9768c262018-10-22 09:34:31 +02001888 break;
1889
Christopher Faulet94b2c762019-05-24 15:28:57 +02001890 case H1_MSG_DONE:
1891 if (type != HTX_BLK_EOM)
1892 goto error;
1893 done:
1894 h1m->state = H1_MSG_DONE;
Christopher Fauletf3158e92019-11-15 11:14:23 +01001895 if (!(h1m->flags & H1_MF_RESP) && h1s->status == 101) {
1896 h1_set_req_tunnel_mode(h1s);
1897 TRACE_STATE("switch H1 request in tunnel mode", H1_EV_TX_DATA|H1_EV_TX_HDRS, h1c->conn, h1s);
1898 }
1899 else if (h1s->h1c->flags & H1C_F_IN_BUSY) {
Christopher Fauletcd67bff2019-06-14 16:54:15 +02001900 h1s->h1c->flags &= ~H1C_F_IN_BUSY;
Willy Tarreau2c1f37d2020-03-04 17:50:02 +01001901 h1c->conn->xprt->subscribe(h1c->conn, h1c->conn->xprt_ctx, SUB_RETRY_RECV, &h1c->wait_event);
Christopher Faulet6b81df72019-10-01 22:08:43 +02001902 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 +02001903 }
Christopher Faulet6b81df72019-10-01 22:08:43 +02001904
1905 TRACE_USER((!(h1m->flags & H1_MF_RESP) ? "H1 request fully xferred" : "H1 response fully xferred"),
1906 H1_EV_TX_DATA, h1c->conn, h1s);
Christopher Faulet9768c262018-10-22 09:34:31 +02001907 break;
1908
Christopher Faulet9768c262018-10-22 09:34:31 +02001909 default:
Christopher Faulet94b2c762019-05-24 15:28:57 +02001910 error:
Christopher Faulet6b81df72019-10-01 22:08:43 +02001911 TRACE_PROTO("formatting error", H1_EV_TX_DATA, h1c->conn, h1s);
Christopher Fauletd87d3fa2019-06-26 15:16:28 +02001912 /* Unexpected error during output processing */
Christopher Faulet69b48212019-09-09 10:11:30 +02001913 chn_htx->flags |= HTX_FL_PROCESSING_ERROR;
Christopher Fauleta2ea1582019-05-28 10:35:18 +02001914 h1s->flags |= errflag;
Christopher Fauletd87d3fa2019-06-26 15:16:28 +02001915 h1c->flags |= H1C_F_CS_ERROR;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001916 TRACE_STATE("processing error, set error on h1c/h1s", H1_EV_H1C_ERR|H1_EV_H1S_ERR, h1c->conn, h1s);
1917 TRACE_DEVEL("unexpected error", H1_EV_TX_DATA|H1_EV_STRM_ERR, h1c->conn, h1s);
Christopher Faulet9768c262018-10-22 09:34:31 +02001918 break;
1919 }
Christopher Faulet94b2c762019-05-24 15:28:57 +02001920
1921 nextblk:
Christopher Fauletb2e84162018-12-06 11:39:49 +01001922 total += vlen;
1923 count -= vlen;
1924 if (sz == vlen)
1925 blk = htx_remove_blk(chn_htx, blk);
1926 else {
1927 htx_cut_data_blk(chn_htx, blk, vlen);
1928 break;
1929 }
Christopher Faulet129817b2018-09-20 16:14:40 +02001930 }
1931
Christopher Faulet9768c262018-10-22 09:34:31 +02001932 copy:
Willy Tarreauc5efa332018-12-05 11:19:27 +01001933 /* when the output buffer is empty, tmp shares the same area so that we
1934 * only have to update pointers and lengths.
1935 */
Christopher Fauletc2518a52019-06-25 21:41:02 +02001936 if (tmp.area == h1c->obuf.area + h1c->obuf.head)
1937 h1c->obuf.data = tmp.data;
Willy Tarreauc5efa332018-12-05 11:19:27 +01001938 else
Christopher Fauletc2518a52019-06-25 21:41:02 +02001939 b_putblk(&h1c->obuf, tmp.area, tmp.data);
Christopher Faulet51dbc942018-09-13 09:05:15 +02001940
Willy Tarreau3815b222018-12-11 19:50:43 +01001941 htx_to_buf(chn_htx, buf);
Christopher Faulet6b81df72019-10-01 22:08:43 +02001942 out:
1943 if (!buf_room_for_htx_data(&h1c->obuf)) {
1944 TRACE_STATE("h1c obuf full", H1_EV_TX_DATA|H1_EV_H1S_BLK, h1c->conn, h1s);
Christopher Faulet51dbc942018-09-13 09:05:15 +02001945 h1c->flags |= H1C_F_OUT_FULL;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001946 }
Christopher Faulet9768c262018-10-22 09:34:31 +02001947 end:
Christopher Faulet6b81df72019-10-01 22:08:43 +02001948 TRACE_LEAVE(H1_EV_TX_DATA, h1c->conn, h1s, chn_htx, (size_t[]){total});
Christopher Faulet9768c262018-10-22 09:34:31 +02001949 return total;
Christopher Fauleta61aa542019-10-14 14:17:00 +02001950
1951 full:
1952 TRACE_STATE("h1c obuf full", H1_EV_TX_DATA|H1_EV_H1S_BLK, h1c->conn, h1s);
1953 h1c->flags |= H1C_F_OUT_FULL;
1954 goto copy;
Christopher Faulet51dbc942018-09-13 09:05:15 +02001955}
1956
Christopher Faulet51dbc942018-09-13 09:05:15 +02001957/*********************************************************/
1958/* functions below are I/O callbacks from the connection */
1959/*********************************************************/
Christopher Faulete17fa2f2018-12-11 16:25:36 +01001960static void h1_wake_stream_for_recv(struct h1s *h1s)
1961{
Willy Tarreau1b0d4d12020-01-16 11:03:19 +01001962 if (h1s && h1s->subs && h1s->subs->events & SUB_RETRY_RECV) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02001963 TRACE_POINT(H1_EV_STRM_WAKE, h1s->h1c->conn, h1s);
Willy Tarreau1b0d4d12020-01-16 11:03:19 +01001964 tasklet_wakeup(h1s->subs->tasklet);
1965 h1s->subs->events &= ~SUB_RETRY_RECV;
1966 if (!h1s->subs->events)
1967 h1s->subs = NULL;
Christopher Faulete17fa2f2018-12-11 16:25:36 +01001968 }
1969}
1970static void h1_wake_stream_for_send(struct h1s *h1s)
1971{
Willy Tarreau1b0d4d12020-01-16 11:03:19 +01001972 if (h1s && h1s->subs && h1s->subs->events & SUB_RETRY_SEND) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02001973 TRACE_POINT(H1_EV_STRM_WAKE, h1s->h1c->conn, h1s);
Willy Tarreau1b0d4d12020-01-16 11:03:19 +01001974 tasklet_wakeup(h1s->subs->tasklet);
1975 h1s->subs->events &= ~SUB_RETRY_SEND;
1976 if (!h1s->subs->events)
1977 h1s->subs = NULL;
Christopher Faulete17fa2f2018-12-11 16:25:36 +01001978 }
1979}
1980
Christopher Faulet51dbc942018-09-13 09:05:15 +02001981/*
1982 * Attempt to read data, and subscribe if none available
1983 */
1984static int h1_recv(struct h1c *h1c)
1985{
1986 struct connection *conn = h1c->conn;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001987 struct h1s *h1s = h1c->h1s;
Olivier Houchard75159a92018-12-03 18:46:09 +01001988 size_t ret = 0, max;
Christopher Faulet51dbc942018-09-13 09:05:15 +02001989 int rcvd = 0;
Willy Tarreau6e59cb52020-02-20 11:11:50 +01001990 int flags = 0;
Christopher Faulet51dbc942018-09-13 09:05:15 +02001991
Christopher Faulet6b81df72019-10-01 22:08:43 +02001992 TRACE_ENTER(H1_EV_H1C_RECV, h1c->conn);
1993
1994 if (h1c->wait_event.events & SUB_RETRY_RECV) {
1995 TRACE_DEVEL("leaving on sub_recv", H1_EV_H1C_RECV, h1c->conn);
Christopher Fauletc386a882018-12-04 16:06:28 +01001996 return (b_data(&h1c->ibuf));
Christopher Faulet6b81df72019-10-01 22:08:43 +02001997 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02001998
Olivier Houchard75159a92018-12-03 18:46:09 +01001999 if (!h1_recv_allowed(h1c)) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02002000 TRACE_DEVEL("leaving on !recv_allowed", H1_EV_H1C_RECV, h1c->conn);
Olivier Houchard75159a92018-12-03 18:46:09 +01002001 rcvd = 1;
Christopher Faulet9768c262018-10-22 09:34:31 +02002002 goto end;
Olivier Houchard75159a92018-12-03 18:46:09 +01002003 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02002004
Christopher Fauletf7d5ff32019-04-16 13:55:08 +02002005 if (!h1_get_buf(h1c, &h1c->ibuf)) {
2006 h1c->flags |= H1C_F_IN_ALLOC;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002007 TRACE_STATE("waiting for h1c ibuf allocation", H1_EV_H1C_RECV|H1_EV_H1C_BLK, h1c->conn);
Christopher Faulet9768c262018-10-22 09:34:31 +02002008 goto end;
2009 }
Christopher Faulet1be55f92018-10-02 15:59:23 +02002010
Christopher Fauletf7d5ff32019-04-16 13:55:08 +02002011 if (h1s && (h1s->flags & (H1S_F_BUF_FLUSH|H1S_F_SPLICED_DATA))) {
Willy Tarreaufbdf90a2019-06-03 13:42:54 +02002012 if (!h1s_data_pending(h1s))
Christopher Fauletf7d5ff32019-04-16 13:55:08 +02002013 h1_wake_stream_for_recv(h1s);
2014 rcvd = 1;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002015 TRACE_DEVEL("leaving on (buf_flush|spliced_data)", H1_EV_H1C_RECV, h1c->conn);
Christopher Faulet9768c262018-10-22 09:34:31 +02002016 goto end;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002017 }
2018
Olivier Houchard29a22bc2018-12-04 18:16:45 +01002019 /*
2020 * If we only have a small amount of data, realign it,
2021 * it's probably cheaper than doing 2 recv() calls.
2022 */
2023 if (b_data(&h1c->ibuf) > 0 && b_data(&h1c->ibuf) < 128)
2024 b_slow_realign(&h1c->ibuf, trash.area, 0);
2025
Willy Tarreau6e59cb52020-02-20 11:11:50 +01002026 /* avoid useless reads after first responses */
2027 if (h1s && (h1s->req.state == H1_MSG_RQBEFORE || h1s->res.state == H1_MSG_RPBEFORE))
2028 flags |= CO_RFL_READ_ONCE;
2029
Willy Tarreau45f2b892018-12-05 07:59:27 +01002030 max = buf_room_for_htx_data(&h1c->ibuf);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002031 if (max) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02002032 if (h1c->flags & H1C_F_IN_FULL) {
2033 h1c->flags &= ~H1C_F_IN_FULL;
2034 TRACE_STATE("h1c ibuf not full anymore", H1_EV_H1C_RECV|H1_EV_H1C_BLK);
2035 }
Willy Tarreau78f548f2018-12-05 10:02:39 +01002036
Willy Tarreaue0f24ee2018-12-14 10:51:23 +01002037 b_realign_if_empty(&h1c->ibuf);
Willy Tarreau78f548f2018-12-05 10:02:39 +01002038 if (!b_data(&h1c->ibuf)) {
2039 /* try to pre-align the buffer like the rxbufs will be
2040 * to optimize memory copies.
2041 */
Willy Tarreau78f548f2018-12-05 10:02:39 +01002042 h1c->ibuf.head = sizeof(struct htx);
2043 }
Willy Tarreau6e59cb52020-02-20 11:11:50 +01002044 ret = conn->xprt->rcv_buf(conn, conn->xprt_ctx, &h1c->ibuf, max, flags);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002045 }
Christopher Faulet47365272018-10-31 17:40:50 +01002046 if (ret > 0) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02002047 TRACE_DATA("data received", H1_EV_H1C_RECV, h1c->conn,,, (size_t[]){ret});
Christopher Faulet51dbc942018-09-13 09:05:15 +02002048 rcvd = 1;
Christopher Fauletfeb11742018-11-29 15:12:34 +01002049 if (h1s && h1s->cs) {
Christopher Faulet37e36072018-12-04 15:54:12 +01002050 h1s->cs->flags |= (CS_FL_READ_PARTIAL|CS_FL_RCV_MORE);
Christopher Fauletfeb11742018-11-29 15:12:34 +01002051 if (h1s->csinfo.t_idle == -1)
2052 h1s->csinfo.t_idle = tv_ms_elapsed(&h1s->csinfo.tv_create, &now) - h1s->csinfo.t_handshake;
2053 }
Christopher Faulet47365272018-10-31 17:40:50 +01002054 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02002055
Olivier Houchardcc3fec82019-07-26 15:11:11 +02002056 if (ret > 0 || !h1_recv_allowed(h1c) || !buf_room_for_htx_data(&h1c->ibuf)) {
Christopher Faulet81d48432018-11-19 21:22:43 +01002057 rcvd = 1;
Christopher Fauletcf56b992018-12-11 16:12:31 +01002058 goto end;
2059 }
2060
Christopher Faulet6b81df72019-10-01 22:08:43 +02002061 TRACE_STATE("failed to receive data, subscribing", H1_EV_H1C_RECV, h1c->conn);
Olivier Houcharde179d0e2019-03-21 18:27:17 +01002062 conn->xprt->subscribe(conn, conn->xprt_ctx, SUB_RETRY_RECV, &h1c->wait_event);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002063
Christopher Faulet9768c262018-10-22 09:34:31 +02002064 end:
Christopher Faulete17fa2f2018-12-11 16:25:36 +01002065 if (ret > 0 || (conn->flags & CO_FL_ERROR) || conn_xprt_read0_pending(conn))
2066 h1_wake_stream_for_recv(h1s);
Olivier Houchard75159a92018-12-03 18:46:09 +01002067
Willy Tarreauc493c9c2019-06-03 14:18:22 +02002068 if (conn_xprt_read0_pending(conn) && h1s) {
2069 h1s->flags |= H1S_F_REOS;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002070 TRACE_STATE("read0 on connection", H1_EV_H1C_RECV, conn, h1s);
Willy Tarreaufbdf90a2019-06-03 13:42:54 +02002071 rcvd = 1;
2072 }
2073
Christopher Faulet51dbc942018-09-13 09:05:15 +02002074 if (!b_data(&h1c->ibuf))
2075 h1_release_buf(h1c, &h1c->ibuf);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002076 else if (!buf_room_for_htx_data(&h1c->ibuf)) {
Christopher Faulet51dbc942018-09-13 09:05:15 +02002077 h1c->flags |= H1C_F_IN_FULL;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002078 TRACE_STATE("h1c ibuf full", H1_EV_H1C_RECV|H1_EV_H1C_BLK);
2079 }
2080
2081 TRACE_LEAVE(H1_EV_H1C_RECV, h1c->conn);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002082 return rcvd;
2083}
2084
2085
2086/*
2087 * Try to send data if possible
2088 */
2089static int h1_send(struct h1c *h1c)
2090{
2091 struct connection *conn = h1c->conn;
2092 unsigned int flags = 0;
2093 size_t ret;
2094 int sent = 0;
2095
Christopher Faulet6b81df72019-10-01 22:08:43 +02002096 TRACE_ENTER(H1_EV_H1C_SEND, h1c->conn);
2097
2098 if (conn->flags & CO_FL_ERROR) {
2099 TRACE_DEVEL("leaving on connection error", H1_EV_H1C_SEND, h1c->conn);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002100 return 0;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002101 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02002102
2103 if (!b_data(&h1c->obuf))
2104 goto end;
2105
Christopher Faulet46230362019-10-17 16:04:20 +02002106 if (h1c->flags & H1C_F_CO_MSG_MORE)
Christopher Faulet51dbc942018-09-13 09:05:15 +02002107 flags |= CO_SFL_MSG_MORE;
Christopher Faulet46230362019-10-17 16:04:20 +02002108 if (h1c->flags & H1C_F_CO_STREAMER)
2109 flags |= CO_SFL_STREAMER;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002110
Olivier Houcharde179d0e2019-03-21 18:27:17 +01002111 ret = conn->xprt->snd_buf(conn, conn->xprt_ctx, &h1c->obuf, b_data(&h1c->obuf), flags);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002112 if (ret > 0) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02002113 TRACE_DATA("data sent", H1_EV_H1C_SEND, h1c->conn,,, (size_t[]){ret});
2114 if (h1c->flags & H1C_F_OUT_FULL) {
2115 h1c->flags &= ~H1C_F_OUT_FULL;
2116 TRACE_STATE("h1c obuf not full anymore", H1_EV_STRM_SEND|H1_EV_H1S_BLK, h1c->conn);
2117 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02002118 b_del(&h1c->obuf, ret);
2119 sent = 1;
2120 }
2121
Christopher Faulet145aa472018-12-06 10:56:20 +01002122 if (conn->flags & (CO_FL_ERROR|CO_FL_SOCK_WR_SH)) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02002123 TRACE_DEVEL("connection error or output closed", H1_EV_H1C_SEND, h1c->conn);
Christopher Faulet145aa472018-12-06 10:56:20 +01002124 /* error or output closed, nothing to send, clear the buffer to release it */
2125 b_reset(&h1c->obuf);
2126 }
2127
Christopher Faulet51dbc942018-09-13 09:05:15 +02002128 end:
Christopher Faulete17fa2f2018-12-11 16:25:36 +01002129 if (!(h1c->flags & H1C_F_OUT_FULL))
2130 h1_wake_stream_for_send(h1c->h1s);
Olivier Houchard75159a92018-12-03 18:46:09 +01002131
Christopher Faulet51dbc942018-09-13 09:05:15 +02002132 /* We're done, no more to send */
2133 if (!b_data(&h1c->obuf)) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02002134 TRACE_DEVEL("leaving with everything sent", H1_EV_H1C_SEND, h1c->conn);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002135 h1_release_buf(h1c, &h1c->obuf);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002136 if (h1c->flags & H1C_F_CS_SHUTW_NOW) {
2137 TRACE_STATE("process pending shutdown for writes", H1_EV_H1C_SEND, h1c->conn);
Christopher Faulet666a0c42019-01-08 11:12:04 +01002138 h1_shutw_conn(conn, CS_SHW_NORMAL);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002139 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02002140 }
Christopher Faulet6b81df72019-10-01 22:08:43 +02002141 else if (!(h1c->wait_event.events & SUB_RETRY_SEND)) {
2142 TRACE_STATE("more data to send, subscribing", H1_EV_H1C_SEND, h1c->conn);
Olivier Houcharde179d0e2019-03-21 18:27:17 +01002143 conn->xprt->subscribe(conn, conn->xprt_ctx, SUB_RETRY_SEND, &h1c->wait_event);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002144 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02002145
Christopher Faulet6b81df72019-10-01 22:08:43 +02002146 TRACE_LEAVE(H1_EV_H1C_SEND, h1c->conn);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002147 return sent;
2148}
2149
Christopher Faulet51dbc942018-09-13 09:05:15 +02002150
2151/* callback called on any event by the connection handler.
2152 * It applies changes and returns zero, or < 0 if it wants immediate
2153 * destruction of the connection.
2154 */
2155static int h1_process(struct h1c * h1c)
2156{
2157 struct connection *conn = h1c->conn;
Christopher Fauletfeb11742018-11-29 15:12:34 +01002158 struct h1s *h1s = h1c->h1s;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002159
Christopher Faulet6b81df72019-10-01 22:08:43 +02002160 TRACE_ENTER(H1_EV_H1C_WAKE, conn);
2161
Willy Tarreau3d2ee552018-12-19 14:12:10 +01002162 if (!conn->ctx)
Christopher Faulet51dbc942018-09-13 09:05:15 +02002163 return -1;
2164
Christopher Fauletfeb11742018-11-29 15:12:34 +01002165 if (!h1s) {
Christopher Faulet37243bc2019-07-11 15:40:25 +02002166 if (h1c->flags & (H1C_F_CS_ERROR|H1C_F_CS_SHUTDOWN) ||
Christopher Fauletaaa67bc2019-12-05 10:23:37 +01002167 conn->flags & (CO_FL_ERROR|CO_FL_SOCK_RD_SH|CO_FL_SOCK_WR_SH))
Christopher Faulet539e0292018-11-19 10:40:09 +01002168 goto release;
Christopher Fauletaaa67bc2019-12-05 10:23:37 +01002169 if (!conn_is_back(conn) && (h1c->flags & H1C_F_CS_IDLE)) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02002170 TRACE_STATE("K/A incoming connection, create new H1 stream", H1_EV_H1C_WAKE, conn);
Olivier Houchardf502aca2018-12-14 19:42:40 +01002171 if (!h1s_create(h1c, NULL, NULL))
Christopher Faulet539e0292018-11-19 10:40:09 +01002172 goto release;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002173 }
Christopher Faulet1a7ad7a2018-12-04 16:10:44 +01002174 else
Olivier Houcharde7284782018-12-06 18:54:54 +01002175 goto end;
Christopher Fauletfeb11742018-11-29 15:12:34 +01002176 h1s = h1c->h1s;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002177 }
2178
Christopher Fauletfeb11742018-11-29 15:12:34 +01002179 if (b_data(&h1c->ibuf) && h1s->csinfo.t_idle == -1)
2180 h1s->csinfo.t_idle = tv_ms_elapsed(&h1s->csinfo.tv_create, &now) - h1s->csinfo.t_handshake;
2181
Christopher Faulet6b81df72019-10-01 22:08:43 +02002182 if (conn_xprt_read0_pending(conn)) {
Willy Tarreauc493c9c2019-06-03 14:18:22 +02002183 h1s->flags |= H1S_F_REOS;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002184 TRACE_STATE("read0 on connection", H1_EV_H1C_RECV, conn, h1s);
2185 }
Willy Tarreauc493c9c2019-06-03 14:18:22 +02002186
Willy Tarreaufbdf90a2019-06-03 13:42:54 +02002187 if (!h1s_data_pending(h1s) && h1s && h1s->cs && h1s->cs->data_cb->wake &&
Willy Tarreauc493c9c2019-06-03 14:18:22 +02002188 (h1s->flags & H1S_F_REOS || h1c->flags & H1C_F_CS_ERROR ||
Olivier Houchard32d75ed2019-01-14 17:27:23 +01002189 conn->flags & (CO_FL_ERROR | CO_FL_SOCK_WR_SH))) {
Olivier Houchard75159a92018-12-03 18:46:09 +01002190 if (h1c->flags & H1C_F_CS_ERROR || conn->flags & CO_FL_ERROR)
Willy Tarreauc493c9c2019-06-03 14:18:22 +02002191 h1s->cs->flags |= CS_FL_ERROR;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002192 TRACE_POINT(H1_EV_STRM_WAKE, h1c->conn, h1s);
Olivier Houchard75159a92018-12-03 18:46:09 +01002193 h1s->cs->data_cb->wake(h1s->cs);
2194 }
Christopher Faulet47365272018-10-31 17:40:50 +01002195 end:
Christopher Fauletb8093cf2019-01-03 16:27:28 +01002196 if (h1c->task) {
2197 h1c->task->expire = TICK_ETERNITY;
2198 if (b_data(&h1c->obuf)) {
Christopher Faulet666a0c42019-01-08 11:12:04 +01002199 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 +01002200 ? h1c->shut_timeout
2201 : h1c->timeout));
2202 task_queue(h1c->task);
2203 }
2204 }
Christopher Faulet6b81df72019-10-01 22:08:43 +02002205 TRACE_LEAVE(H1_EV_H1C_WAKE, conn);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002206 return 0;
Christopher Faulet539e0292018-11-19 10:40:09 +01002207
2208 release:
Christopher Faulet73c12072019-04-08 11:23:22 +02002209 h1_release(h1c);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002210 TRACE_DEVEL("leaving after releasing the connection", H1_EV_H1C_WAKE);
Christopher Faulet539e0292018-11-19 10:40:09 +01002211 return -1;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002212}
2213
2214static struct task *h1_io_cb(struct task *t, void *ctx, unsigned short status)
2215{
Olivier Houchardf12ca9f2020-02-20 16:00:18 +01002216 struct connection *conn;
2217 struct tasklet *tl = (struct tasklet *)t;
2218 int conn_in_list;
2219 struct h1c *h1c;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002220 int ret = 0;
2221
Olivier Houchardf12ca9f2020-02-20 16:00:18 +01002222
2223 HA_SPIN_LOCK(OTHER_LOCK, &toremove_lock[tid]);
2224 if (tl->context == NULL) {
2225 /* The connection has been taken over by another thread,
2226 * we're no longer responsible for it, so just free the
2227 * tasklet, and do nothing.
2228 */
2229 HA_SPIN_UNLOCK(OTHER_LOCK, &toremove_lock[tid]);
2230 tasklet_free(tl);
2231 return NULL;
2232 }
2233 h1c = ctx;
2234 conn = h1c->conn;
2235
2236 TRACE_POINT(H1_EV_H1C_WAKE, conn);
2237
2238 /* Remove the connection from the list, to be sure nobody attempts
2239 * to use it while we handle the I/O events
2240 */
2241 conn_in_list = conn->flags & CO_FL_LIST_MASK;
2242 if (conn_in_list)
2243 MT_LIST_DEL(&conn->list);
2244
2245 HA_SPIN_UNLOCK(OTHER_LOCK, &toremove_lock[tid]);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002246
Willy Tarreau4f6516d2018-12-19 13:59:17 +01002247 if (!(h1c->wait_event.events & SUB_RETRY_SEND))
Christopher Faulet51dbc942018-09-13 09:05:15 +02002248 ret = h1_send(h1c);
Willy Tarreau4f6516d2018-12-19 13:59:17 +01002249 if (!(h1c->wait_event.events & SUB_RETRY_RECV))
Christopher Faulet51dbc942018-09-13 09:05:15 +02002250 ret |= h1_recv(h1c);
Christopher Faulet81d48432018-11-19 21:22:43 +01002251 if (ret || !h1c->h1s)
Olivier Houchardf12ca9f2020-02-20 16:00:18 +01002252 ret = h1_process(h1c);
2253 /* If we were in an idle list, we want to add it back into it,
2254 * unless h1_process() returned -1, which mean it has destroyed
2255 * the connection (testing !ret is enough, if h1_process() wasn't
2256 * called then ret will be 0 anyway.
2257 */
2258 if (!ret && conn_in_list) {
2259 struct server *srv = objt_server(conn->target);
2260
2261 if (conn_in_list == CO_FL_SAFE_LIST)
2262 MT_LIST_ADDQ(&srv->safe_conns[tid], &conn->list);
2263 else
2264 MT_LIST_ADDQ(&srv->idle_conns[tid], &conn->list);
2265 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02002266 return NULL;
2267}
2268
Olivier Houchard9a86fcb2018-12-11 16:47:14 +01002269static void h1_reset(struct connection *conn)
2270{
Olivier Houchard9a86fcb2018-12-11 16:47:14 +01002271
Olivier Houchard9a86fcb2018-12-11 16:47:14 +01002272}
Christopher Faulet51dbc942018-09-13 09:05:15 +02002273
2274static int h1_wake(struct connection *conn)
2275{
Willy Tarreau3d2ee552018-12-19 14:12:10 +01002276 struct h1c *h1c = conn->ctx;
Olivier Houchard75159a92018-12-03 18:46:09 +01002277 int ret;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002278
Christopher Faulet6b81df72019-10-01 22:08:43 +02002279 TRACE_POINT(H1_EV_H1C_WAKE, conn);
2280
Christopher Faulet539e0292018-11-19 10:40:09 +01002281 h1_send(h1c);
Olivier Houchard75159a92018-12-03 18:46:09 +01002282 ret = h1_process(h1c);
2283 if (ret == 0) {
2284 struct h1s *h1s = h1c->h1s;
2285
Christopher Faulet6b81df72019-10-01 22:08:43 +02002286 if (h1s && h1s->cs && h1s->cs->data_cb->wake) {
2287 TRACE_POINT(H1_EV_STRM_WAKE, h1c->conn, h1s);
Olivier Houchard75159a92018-12-03 18:46:09 +01002288 ret = h1s->cs->data_cb->wake(h1s->cs);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002289 }
Olivier Houchard75159a92018-12-03 18:46:09 +01002290 }
2291 return ret;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002292}
2293
Christopher Fauletb8093cf2019-01-03 16:27:28 +01002294/* Connection timeout management. The principle is that if there's no receipt
2295 * nor sending for a certain amount of time, the connection is closed.
2296 */
2297static struct task *h1_timeout_task(struct task *t, void *context, unsigned short state)
2298{
2299 struct h1c *h1c = context;
2300 int expired = tick_is_expired(t->expire, now_ms);
2301
Christopher Faulet6b81df72019-10-01 22:08:43 +02002302 TRACE_POINT(H1_EV_H1C_WAKE, h1c ? h1c->conn : NULL);
2303
2304 if (!expired && h1c) {
2305 TRACE_DEVEL("leaving (not expired)", H1_EV_H1C_WAKE, h1c->conn);
Christopher Fauletb8093cf2019-01-03 16:27:28 +01002306 return t;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002307 }
Christopher Fauletb8093cf2019-01-03 16:27:28 +01002308
Olivier Houchardf12ca9f2020-02-20 16:00:18 +01002309 /* We're about to destroy the connection, so make sure nobody attempts
2310 * to steal it from us.
2311 */
2312 HA_SPIN_LOCK(OTHER_LOCK, &toremove_lock[tid]);
2313
2314 if (h1c && h1c->conn->flags & CO_FL_LIST_MASK)
2315 MT_LIST_DEL(&h1c->conn->list);
2316
2317 /* Somebody already stole the connection from us, so we should not
2318 * free it, we just have to free the task.
2319 */
2320 if (!t->context)
2321 h1c = NULL;
2322
2323 HA_SPIN_UNLOCK(OTHER_LOCK, &toremove_lock[tid]);
2324
Olivier Houchard3f795f72019-04-17 22:51:06 +02002325 task_destroy(t);
Christopher Fauletb8093cf2019-01-03 16:27:28 +01002326
2327 if (!h1c) {
2328 /* resources were already deleted */
Christopher Faulet6b81df72019-10-01 22:08:43 +02002329 TRACE_DEVEL("leaving (not more h1c)", H1_EV_H1C_WAKE);
Christopher Fauletb8093cf2019-01-03 16:27:28 +01002330 return NULL;
2331 }
2332
2333 h1c->task = NULL;
2334 /* If a stream is still attached to the mux, just set an error and wait
2335 * for the stream's timeout. Otherwise, release the mux. This is only ok
2336 * because same timeouts are used.
2337 */
Christopher Faulet6b81df72019-10-01 22:08:43 +02002338 if (h1c->h1s && h1c->h1s->cs) {
Christopher Fauletb8093cf2019-01-03 16:27:28 +01002339 h1c->flags |= H1C_F_CS_ERROR;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002340 TRACE_STATE("error on h1c, h1s still attached (expired)", H1_EV_H1C_WAKE|H1_EV_H1C_ERR, h1c->conn, h1c->h1s);
2341 }
Christopher Fauletb8093cf2019-01-03 16:27:28 +01002342 else
Christopher Faulet73c12072019-04-08 11:23:22 +02002343 h1_release(h1c);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002344
Christopher Fauletb8093cf2019-01-03 16:27:28 +01002345 return NULL;
2346}
2347
Christopher Faulet51dbc942018-09-13 09:05:15 +02002348/*******************************************/
2349/* functions below are used by the streams */
2350/*******************************************/
Christopher Faulet73c12072019-04-08 11:23:22 +02002351
Christopher Faulet51dbc942018-09-13 09:05:15 +02002352/*
2353 * Attach a new stream to a connection
2354 * (Used for outgoing connections)
2355 */
Olivier Houchardf502aca2018-12-14 19:42:40 +01002356static struct conn_stream *h1_attach(struct connection *conn, struct session *sess)
Christopher Faulet51dbc942018-09-13 09:05:15 +02002357{
Willy Tarreau3d2ee552018-12-19 14:12:10 +01002358 struct h1c *h1c = conn->ctx;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002359 struct conn_stream *cs = NULL;
2360 struct h1s *h1s;
2361
Christopher Faulet6b81df72019-10-01 22:08:43 +02002362 TRACE_ENTER(H1_EV_STRM_NEW, conn);
2363 if (h1c->flags & H1C_F_CS_ERROR) {
2364 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 +02002365 goto end;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002366 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02002367
2368 cs = cs_new(h1c->conn);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002369 if (!cs) {
2370 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 +02002371 goto end;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002372 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02002373
Olivier Houchardf502aca2018-12-14 19:42:40 +01002374 h1s = h1s_create(h1c, cs, sess);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002375 if (h1s == NULL) {
2376 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 +02002377 goto end;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002378 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02002379
Christopher Faulet6b81df72019-10-01 22:08:43 +02002380 TRACE_LEAVE(H1_EV_STRM_NEW, conn, h1s);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002381 return cs;
2382 end:
2383 cs_free(cs);
2384 return NULL;
2385}
2386
2387/* Retrieves a valid conn_stream from this connection, or returns NULL. For
2388 * this mux, it's easy as we can only store a single conn_stream.
2389 */
2390static const struct conn_stream *h1_get_first_cs(const struct connection *conn)
2391{
Willy Tarreau3d2ee552018-12-19 14:12:10 +01002392 struct h1c *h1c = conn->ctx;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002393 struct h1s *h1s = h1c->h1s;
2394
2395 if (h1s)
2396 return h1s->cs;
2397
2398 return NULL;
2399}
2400
Christopher Faulet73c12072019-04-08 11:23:22 +02002401static void h1_destroy(void *ctx)
Christopher Faulet51dbc942018-09-13 09:05:15 +02002402{
Christopher Faulet73c12072019-04-08 11:23:22 +02002403 struct h1c *h1c = ctx;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002404
Christopher Faulet6b81df72019-10-01 22:08:43 +02002405 TRACE_POINT(H1_EV_H1C_END, h1c->conn);
Christopher Faulet39a96ee2019-04-08 10:52:21 +02002406 if (!h1c->h1s || !h1c->conn || h1c->conn->ctx != h1c)
Christopher Faulet73c12072019-04-08 11:23:22 +02002407 h1_release(h1c);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002408}
2409
2410/*
2411 * Detach the stream from the connection and possibly release the connection.
2412 */
2413static void h1_detach(struct conn_stream *cs)
2414{
2415 struct h1s *h1s = cs->ctx;
2416 struct h1c *h1c;
Olivier Houchardf502aca2018-12-14 19:42:40 +01002417 struct session *sess;
Olivier Houchard8a786902018-12-15 16:05:40 +01002418 int is_not_first;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002419
Christopher Faulet6b81df72019-10-01 22:08:43 +02002420 TRACE_ENTER(H1_EV_STRM_END, h1s ? h1s->h1c->conn : NULL, h1s);
2421
Christopher Faulet51dbc942018-09-13 09:05:15 +02002422 cs->ctx = NULL;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002423 if (!h1s) {
2424 TRACE_LEAVE(H1_EV_STRM_END);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002425 return;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002426 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02002427
Olivier Houchardf502aca2018-12-14 19:42:40 +01002428 sess = h1s->sess;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002429 h1c = h1s->h1c;
2430 h1s->cs = NULL;
2431
Olivier Houchard8a786902018-12-15 16:05:40 +01002432 is_not_first = h1s->flags & H1S_F_NOT_FIRST;
2433 h1s_destroy(h1s);
2434
Christopher Fauletaaa67bc2019-12-05 10:23:37 +01002435 if (conn_is_back(h1c->conn) && (h1c->flags & H1C_F_CS_IDLE)) {
Christopher Fauletf1204b82019-07-19 14:51:06 +02002436 /* If there are any excess server data in the input buffer,
2437 * release it and close the connection ASAP (some data may
2438 * remain in the output buffer). This happens if a server sends
2439 * invalid responses. So in such case, we don't want to reuse
2440 * the connection
Christopher Faulet03627242019-07-19 11:34:08 +02002441 */
Christopher Fauletf1204b82019-07-19 14:51:06 +02002442 if (b_data(&h1c->ibuf)) {
2443 h1_release_buf(h1c, &h1c->ibuf);
Christopher Fauletaaa67bc2019-12-05 10:23:37 +01002444 h1c->flags = (h1c->flags & ~H1C_F_CS_IDLE) | H1C_F_CS_SHUTW_NOW;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002445 TRACE_DEVEL("remaining data on detach, kill connection", H1_EV_STRM_END|H1_EV_H1C_END);
Christopher Fauletf1204b82019-07-19 14:51:06 +02002446 goto release;
2447 }
Christopher Faulet03627242019-07-19 11:34:08 +02002448
Christopher Faulet9400a392018-11-23 23:10:39 +01002449 /* Never ever allow to reuse a connection from a non-reuse backend */
Olivier Houchard44d59142018-12-13 18:46:22 +01002450 if ((h1c->px->options & PR_O_REUSE_MASK) == PR_O_REUSE_NEVR)
Christopher Faulet9400a392018-11-23 23:10:39 +01002451 h1c->conn->flags |= CO_FL_PRIVATE;
2452
Olivier Houchard2444aa52020-01-20 13:56:01 +01002453 if (!(h1c->conn->owner) && (h1c->conn->flags & CO_FL_PRIVATE)) {
Olivier Houchardf502aca2018-12-14 19:42:40 +01002454 h1c->conn->owner = sess;
Olivier Houchard351411f2018-12-27 17:20:54 +01002455 if (!session_add_conn(sess, h1c->conn, h1c->conn->target)) {
2456 h1c->conn->owner = NULL;
Olivier Houchard2444aa52020-01-20 13:56:01 +01002457 h1c->conn->mux->destroy(h1c);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002458 goto end;
Olivier Houchard351411f2018-12-27 17:20:54 +01002459 }
Olivier Houchard2444aa52020-01-20 13:56:01 +01002460 if (session_check_idle_conn(sess, h1c->conn)) {
Olivier Houcharda4d4fdf2018-12-14 19:27:06 +01002461 /* The connection got destroyed, let's leave */
Christopher Faulet6b81df72019-10-01 22:08:43 +02002462 TRACE_DEVEL("outgoing connection killed", H1_EV_STRM_END|H1_EV_H1C_END);
2463 goto end;
2464 }
Olivier Houcharda4d4fdf2018-12-14 19:27:06 +01002465 }
Olivier Houchard2444aa52020-01-20 13:56:01 +01002466 if (!(h1c->conn->flags & CO_FL_PRIVATE)) {
2467 if (h1c->conn->owner == sess)
2468 h1c->conn->owner = NULL;
Olivier Houchard3c49c1b2020-03-22 19:56:03 +01002469 h1c->conn->xprt->subscribe(h1c->conn, h1c->conn->xprt_ctx, SUB_RETRY_RECV, &h1c->wait_event);
Olivier Houcharddc2f2752020-02-13 19:12:07 +01002470 if (!srv_add_to_idle_list(objt_server(h1c->conn->target), h1c->conn, is_not_first)) {
Olivier Houchard2444aa52020-01-20 13:56:01 +01002471 /* The server doesn't want it, let's kill the connection right away */
2472 h1c->conn->mux->destroy(h1c);
2473 TRACE_DEVEL("outgoing connection killed", H1_EV_STRM_END|H1_EV_H1C_END);
2474 goto end;
Christopher Faulet9400a392018-11-23 23:10:39 +01002475 }
Olivier Houchard199d4fa2020-03-22 23:25:51 +01002476 /* At this point, the connection has been added to the
2477 * server idle list, so another thread may already have
2478 * hijacked it, so we can't do anything with it.
2479 */
Olivier Houchard2444aa52020-01-20 13:56:01 +01002480 return;
Christopher Faulet9400a392018-11-23 23:10:39 +01002481 }
2482 }
2483
Christopher Fauletf1204b82019-07-19 14:51:06 +02002484 release:
Christopher Faulet3ac0f432019-06-28 17:41:42 +02002485 /* 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 +02002486 if ((h1c->flags & (H1C_F_CS_ERROR|H1C_F_CS_SHUTDOWN|H1C_F_UPG_H2C)) ||
2487 (h1c->conn->flags & (CO_FL_ERROR|CO_FL_SOCK_WR_SH)) ||
2488 ((h1c->flags & H1C_F_CS_SHUTW_NOW) && !b_data(&h1c->obuf)) ||
Christopher Faulet6b81df72019-10-01 22:08:43 +02002489 !h1c->conn->owner) {
2490 TRACE_DEVEL("killing dead connection", H1_EV_STRM_END, h1c->conn);
Christopher Faulet73c12072019-04-08 11:23:22 +02002491 h1_release(h1c);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002492 }
Christopher Fauletb8093cf2019-01-03 16:27:28 +01002493 else {
Olivier Houchard69664412020-03-25 12:24:11 +01002494 /* If we have a new request, process it immediately */
Olivier Houchardc3500c32020-03-25 17:05:21 +01002495 if (unlikely(b_data(&h1c->ibuf)))
Olivier Houchard69664412020-03-25 12:24:11 +01002496 h1_process(h1c);
2497 else
2498 h1c->conn->xprt->subscribe(h1c->conn, h1c->conn->xprt_ctx, SUB_RETRY_RECV, &h1c->wait_event);
Christopher Fauletb8093cf2019-01-03 16:27:28 +01002499 if (h1c->task) {
2500 h1c->task->expire = TICK_ETERNITY;
Willy Tarreauca397472020-04-28 19:48:41 +02002501 if ((!h1c->h1s && !conn_is_back(h1c->conn)) || b_data(&h1c->obuf)) {
2502 /* front connections waiting for a stream, as well as any connection with
2503 * pending data, need a timeout.
2504 */
Christopher Faulet666a0c42019-01-08 11:12:04 +01002505 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 +01002506 ? h1c->shut_timeout
2507 : h1c->timeout));
2508 task_queue(h1c->task);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002509 TRACE_DEVEL("refreshing connection's timeout", H1_EV_STRM_END, h1c->conn);
Christopher Fauletb8093cf2019-01-03 16:27:28 +01002510 }
2511 }
2512 }
Christopher Faulet6b81df72019-10-01 22:08:43 +02002513 end:
2514 TRACE_LEAVE(H1_EV_STRM_END);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002515}
2516
2517
2518static void h1_shutr(struct conn_stream *cs, enum cs_shr_mode mode)
2519{
2520 struct h1s *h1s = cs->ctx;
Christopher Faulet7f366362019-04-08 10:51:20 +02002521 struct h1c *h1c;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002522
2523 if (!h1s)
2524 return;
Christopher Faulet7f366362019-04-08 10:51:20 +02002525 h1c = h1s->h1c;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002526
Christopher Faulet6b81df72019-10-01 22:08:43 +02002527 TRACE_ENTER(H1_EV_STRM_SHUT, h1c->conn, h1s);
2528
2529 if (cs->flags & CS_FL_KILL_CONN) {
2530 TRACE_STATE("stream wants to kill the connection", H1_EV_STRM_SHUT, h1c->conn, h1s);
2531 goto do_shutr;
2532 }
2533 if (h1c->conn->flags & (CO_FL_ERROR | CO_FL_SOCK_RD_SH | CO_FL_SOCK_WR_SH)) {
2534 TRACE_STATE("shutdown on connection (error|rd_sh|wr_sh)", H1_EV_STRM_SHUT, h1c->conn, h1s);
Christopher Faulet7f366362019-04-08 10:51:20 +02002535 goto do_shutr;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002536 }
Christopher Faulet7f366362019-04-08 10:51:20 +02002537
Christopher Faulet6b81df72019-10-01 22:08:43 +02002538 if ((h1c->flags & H1C_F_UPG_H2C) || (h1s->flags & H1S_F_WANT_KAL)) {
2539 TRACE_STATE("keep connection alive (upg_h2c|want_kal)", H1_EV_STRM_SHUT, h1c->conn, h1s);
2540 goto end;
2541 }
Christopher Fauletf2824e62018-10-01 12:12:37 +02002542
Christopher Faulet7f366362019-04-08 10:51:20 +02002543 do_shutr:
Christopher Faulet51dbc942018-09-13 09:05:15 +02002544 /* NOTE: Be sure to handle abort (cf. h2_shutr) */
2545 if (cs->flags & CS_FL_SHR)
Christopher Faulet6b81df72019-10-01 22:08:43 +02002546 goto end;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002547 if (conn_xprt_ready(cs->conn) && cs->conn->xprt->shutr)
Olivier Houcharde179d0e2019-03-21 18:27:17 +01002548 cs->conn->xprt->shutr(cs->conn, cs->conn->xprt_ctx,
Christopher Faulet6b81df72019-10-01 22:08:43 +02002549 (mode == CS_SHR_DRAIN));
Christopher Faulet6b81df72019-10-01 22:08:43 +02002550 end:
2551 TRACE_LEAVE(H1_EV_STRM_SHUT, h1c->conn, h1s);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002552}
2553
2554static void h1_shutw(struct conn_stream *cs, enum cs_shw_mode mode)
2555{
2556 struct h1s *h1s = cs->ctx;
2557 struct h1c *h1c;
2558
2559 if (!h1s)
2560 return;
2561 h1c = h1s->h1c;
2562
Christopher Faulet6b81df72019-10-01 22:08:43 +02002563 TRACE_ENTER(H1_EV_STRM_SHUT, h1c->conn, h1s);
2564
2565 if (cs->flags & CS_FL_KILL_CONN) {
2566 TRACE_STATE("stream wants to kill the connection", H1_EV_STRM_SHUT, h1c->conn, h1s);
Christopher Faulet7f366362019-04-08 10:51:20 +02002567 goto do_shutw;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002568 }
2569 if (h1c->conn->flags & (CO_FL_ERROR | CO_FL_SOCK_RD_SH | CO_FL_SOCK_WR_SH)) {
2570 TRACE_STATE("shutdown on connection (error|rd_sh|wr_sh)", H1_EV_STRM_SHUT, h1c->conn, h1s);
2571 goto do_shutw;
2572 }
Olivier Houchardd2e88c72018-12-19 15:55:23 +01002573
Christopher Faulet0ef372a2019-04-08 10:57:20 +02002574 if ((h1c->flags & H1C_F_UPG_H2C) ||
Christopher Faulet6b81df72019-10-01 22:08:43 +02002575 ((h1s->flags & H1S_F_WANT_KAL) && h1s->req.state == H1_MSG_DONE && h1s->res.state == H1_MSG_DONE)) {
2576 TRACE_STATE("keep connection alive (upg_h2c|want_kal)", H1_EV_STRM_SHUT, h1c->conn, h1s);
2577 goto end;
2578 }
Christopher Fauletf2824e62018-10-01 12:12:37 +02002579
Christopher Faulet7f366362019-04-08 10:51:20 +02002580 do_shutw:
Christopher Faulet51dbc942018-09-13 09:05:15 +02002581 h1c->flags |= H1C_F_CS_SHUTW_NOW;
2582 if ((cs->flags & CS_FL_SHW) || b_data(&h1c->obuf))
Christopher Faulet6b81df72019-10-01 22:08:43 +02002583 goto end;
Christopher Faulet666a0c42019-01-08 11:12:04 +01002584 h1_shutw_conn(cs->conn, mode);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002585 end:
2586 TRACE_LEAVE(H1_EV_STRM_SHUT, h1c->conn, h1s);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002587}
2588
Christopher Faulet666a0c42019-01-08 11:12:04 +01002589static void h1_shutw_conn(struct connection *conn, enum cs_shw_mode mode)
Christopher Faulet51dbc942018-09-13 09:05:15 +02002590{
Willy Tarreau3d2ee552018-12-19 14:12:10 +01002591 struct h1c *h1c = conn->ctx;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002592
Christopher Faulet6b81df72019-10-01 22:08:43 +02002593 TRACE_ENTER(H1_EV_STRM_SHUT, conn, h1c->h1s);
Christopher Faulet666a0c42019-01-08 11:12:04 +01002594 conn_xprt_shutw(conn);
2595 conn_sock_shutw(conn, (mode == CS_SHW_NORMAL));
Christopher Faulet7b109f22019-12-05 11:18:31 +01002596 h1c->flags = (h1c->flags & ~H1C_F_CS_SHUTW_NOW) | H1C_F_CS_SHUTDOWN;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002597 TRACE_LEAVE(H1_EV_STRM_SHUT, conn, h1c->h1s);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002598}
2599
Willy Tarreauee1a6fc2020-01-17 07:52:13 +01002600/* Called from the upper layer, to unsubscribe <es> from events <event_type>
2601 * The <es> pointer is not allowed to differ from the one passed to the
2602 * subscribe() call. It always returns zero.
2603 */
2604static int h1_unsubscribe(struct conn_stream *cs, int event_type, struct wait_event *es)
Christopher Faulet51dbc942018-09-13 09:05:15 +02002605{
Christopher Faulet51dbc942018-09-13 09:05:15 +02002606 struct h1s *h1s = cs->ctx;
2607
2608 if (!h1s)
2609 return 0;
2610
Willy Tarreau1b0d4d12020-01-16 11:03:19 +01002611 BUG_ON(event_type & ~(SUB_RETRY_SEND|SUB_RETRY_RECV));
Willy Tarreauee1a6fc2020-01-17 07:52:13 +01002612 BUG_ON(h1s->subs && h1s->subs != es);
Willy Tarreau1b0d4d12020-01-16 11:03:19 +01002613
Willy Tarreauee1a6fc2020-01-17 07:52:13 +01002614 es->events &= ~event_type;
2615 if (!es->events)
Willy Tarreau1b0d4d12020-01-16 11:03:19 +01002616 h1s->subs = NULL;
2617
2618 if (event_type & SUB_RETRY_RECV)
Christopher Faulet6b81df72019-10-01 22:08:43 +02002619 TRACE_DEVEL("unsubscribe(recv)", H1_EV_STRM_RECV, h1s->h1c->conn, h1s);
Willy Tarreau1b0d4d12020-01-16 11:03:19 +01002620
2621 if (event_type & SUB_RETRY_SEND)
Christopher Faulet6b81df72019-10-01 22:08:43 +02002622 TRACE_DEVEL("unsubscribe(send)", H1_EV_STRM_SEND, h1s->h1c->conn, h1s);
Willy Tarreau1b0d4d12020-01-16 11:03:19 +01002623
Christopher Faulet51dbc942018-09-13 09:05:15 +02002624 return 0;
2625}
2626
Willy Tarreauee1a6fc2020-01-17 07:52:13 +01002627/* Called from the upper layer, to subscribe <es> to events <event_type>. The
2628 * event subscriber <es> is not allowed to change from a previous call as long
2629 * as at least one event is still subscribed. The <event_type> must only be a
2630 * combination of SUB_RETRY_RECV and SUB_RETRY_SEND. It always returns 0, unless
2631 * the conn_stream <cs> was already detached, in which case it will return -1.
2632 */
2633static int h1_subscribe(struct conn_stream *cs, int event_type, struct wait_event *es)
Christopher Faulet51dbc942018-09-13 09:05:15 +02002634{
Christopher Faulet51dbc942018-09-13 09:05:15 +02002635 struct h1s *h1s = cs->ctx;
Christopher Faulet51bb1852019-09-04 10:22:34 +02002636 struct h1c *h1c;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002637
2638 if (!h1s)
2639 return -1;
2640
Willy Tarreau1b0d4d12020-01-16 11:03:19 +01002641 BUG_ON(event_type & ~(SUB_RETRY_SEND|SUB_RETRY_RECV));
Willy Tarreauee1a6fc2020-01-17 07:52:13 +01002642 BUG_ON(h1s->subs && h1s->subs != es);
Willy Tarreau1b0d4d12020-01-16 11:03:19 +01002643
Willy Tarreauee1a6fc2020-01-17 07:52:13 +01002644 es->events |= event_type;
2645 h1s->subs = es;
Willy Tarreau1b0d4d12020-01-16 11:03:19 +01002646
2647 if (event_type & SUB_RETRY_RECV)
Christopher Faulet6b81df72019-10-01 22:08:43 +02002648 TRACE_DEVEL("subscribe(recv)", H1_EV_STRM_RECV, h1s->h1c->conn, h1s);
Willy Tarreau1b0d4d12020-01-16 11:03:19 +01002649
2650
Christopher Faulet6b81df72019-10-01 22:08:43 +02002651 if (event_type & SUB_RETRY_SEND) {
2652 TRACE_DEVEL("subscribe(send)", H1_EV_STRM_SEND, h1s->h1c->conn, h1s);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002653 /*
2654 * If the conn_stream attempt to subscribe, and the
2655 * mux isn't subscribed to the connection, then it
2656 * probably means the connection wasn't established
2657 * yet, so we have to subscribe.
2658 */
2659 h1c = h1s->h1c;
2660 if (!(h1c->wait_event.events & SUB_RETRY_SEND))
2661 h1c->conn->xprt->subscribe(h1c->conn,
2662 h1c->conn->xprt_ctx,
2663 SUB_RETRY_SEND,
2664 &h1c->wait_event);
2665 }
Christopher Faulet6b81df72019-10-01 22:08:43 +02002666 return 0;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002667}
2668
2669/* Called from the upper layer, to receive data */
2670static size_t h1_rcv_buf(struct conn_stream *cs, struct buffer *buf, size_t count, int flags)
2671{
2672 struct h1s *h1s = cs->ctx;
Christopher Faulet539e0292018-11-19 10:40:09 +01002673 struct h1c *h1c = h1s->h1c;
Olivier Houcharddedd3062019-07-26 15:12:38 +02002674 struct h1m *h1m = (!conn_is_back(cs->conn) ? &h1s->req : &h1s->res);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002675 size_t ret = 0;
2676
Christopher Faulet6b81df72019-10-01 22:08:43 +02002677 TRACE_ENTER(H1_EV_STRM_RECV, h1c->conn, h1s,, (size_t[]){count});
Christopher Faulet539e0292018-11-19 10:40:09 +01002678 if (!(h1c->flags & H1C_F_IN_ALLOC))
Christopher Faulet30db3d72019-05-17 15:35:33 +02002679 ret = h1_process_input(h1c, buf, count);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002680 else
2681 TRACE_DEVEL("h1c ibuf not allocated", H1_EV_H1C_RECV|H1_EV_H1C_BLK, h1c->conn);
Christopher Faulet1be55f92018-10-02 15:59:23 +02002682
Christopher Faulete18777b2019-04-16 16:46:36 +02002683 if (flags & CO_RFL_BUF_FLUSH) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02002684 if (h1m->state != H1_MSG_TUNNEL || (h1m->state == H1_MSG_DATA && h1m->curr_len)) {
Christopher Faulete18777b2019-04-16 16:46:36 +02002685 h1s->flags |= H1S_F_BUF_FLUSH;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002686 TRACE_STATE("flush stream's buffer", H1_EV_STRM_RECV, h1c->conn, h1s);
2687 }
Christopher Faulete18777b2019-04-16 16:46:36 +02002688 }
Olivier Houchard02bac852019-08-22 18:34:25 +02002689 else {
Christopher Faulet6b81df72019-10-01 22:08:43 +02002690 if (h1s->flags & H1S_F_SPLICED_DATA) {
2691 h1s->flags &= ~H1S_F_SPLICED_DATA;
2692 TRACE_STATE("disable splicing", H1_EV_STRM_RECV, h1c->conn, h1s);
2693 }
2694 if (h1m->state != H1_MSG_DONE && !(h1c->wait_event.events & SUB_RETRY_RECV))
Willy Tarreau2c1f37d2020-03-04 17:50:02 +01002695 h1c->conn->xprt->subscribe(h1c->conn, h1c->conn->xprt_ctx, SUB_RETRY_RECV, &h1c->wait_event);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002696 }
Christopher Faulet6b81df72019-10-01 22:08:43 +02002697 TRACE_LEAVE(H1_EV_STRM_RECV, h1c->conn, h1s,, (size_t[]){ret});
Christopher Faulet51dbc942018-09-13 09:05:15 +02002698 return ret;
2699}
2700
2701
2702/* Called from the upper layer, to send data */
2703static size_t h1_snd_buf(struct conn_stream *cs, struct buffer *buf, size_t count, int flags)
2704{
2705 struct h1s *h1s = cs->ctx;
2706 struct h1c *h1c;
Christopher Faulet5d37dac2018-11-22 10:58:42 +01002707 size_t total = 0;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002708
2709 if (!h1s)
Christopher Faulet5d37dac2018-11-22 10:58:42 +01002710 return 0;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002711 h1c = h1s->h1c;
Olivier Houchard305d5ab2019-07-24 18:07:06 +02002712
Christopher Faulet6b81df72019-10-01 22:08:43 +02002713 TRACE_ENTER(H1_EV_STRM_SEND, h1c->conn, h1s,, (size_t[]){count});
2714
Olivier Houchard305d5ab2019-07-24 18:07:06 +02002715 /* If we're not connected yet, or we're waiting for a handshake, stop
2716 * now, as we don't want to remove everything from the channel buffer
2717 * before we're sure we can send it.
2718 */
Willy Tarreau911db9b2020-01-23 16:27:54 +01002719 if (h1c->conn->flags & CO_FL_WAIT_XPRT) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02002720 TRACE_LEAVE(H1_EV_STRM_SEND, h1c->conn, h1s);
Christopher Faulet3b88b8d2018-10-26 17:36:03 +02002721 return 0;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002722 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02002723
Christopher Faulet46230362019-10-17 16:04:20 +02002724 /* Inherit some flags from the upper layer */
2725 h1c->flags &= ~(H1C_F_CO_MSG_MORE|H1C_F_CO_STREAMER);
2726 if (flags & CO_SFL_MSG_MORE)
2727 h1c->flags |= H1C_F_CO_MSG_MORE;
2728 if (flags & CO_SFL_STREAMER)
2729 h1c->flags |= H1C_F_CO_STREAMER;
2730
Christopher Fauletc31872f2019-06-04 22:09:36 +02002731 while (count) {
Christopher Faulet5d37dac2018-11-22 10:58:42 +01002732 size_t ret = 0;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002733
Christopher Faulet5d37dac2018-11-22 10:58:42 +01002734 if (!(h1c->flags & (H1C_F_OUT_FULL|H1C_F_OUT_ALLOC)))
2735 ret = h1_process_output(h1c, buf, count);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002736 else
2737 TRACE_DEVEL("h1c obuf not allocated", H1_EV_STRM_SEND|H1_EV_H1S_BLK, h1c->conn, h1s);
Christopher Faulet5d37dac2018-11-22 10:58:42 +01002738 if (!ret)
2739 break;
2740 total += ret;
Christopher Fauletc31872f2019-06-04 22:09:36 +02002741 count -= ret;
Olivier Houchard68787ef2020-01-15 19:13:32 +01002742 if ((h1c->wait_event.events & SUB_RETRY_SEND) || !h1_send(h1c))
Christopher Faulet5d37dac2018-11-22 10:58:42 +01002743 break;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002744 }
Christopher Fauletf96c3222018-11-20 18:38:01 +01002745
Christopher Faulet6b81df72019-10-01 22:08:43 +02002746 TRACE_LEAVE(H1_EV_STRM_SEND, h1c->conn, h1s,, (size_t[]){total});
Christopher Faulet5d37dac2018-11-22 10:58:42 +01002747 return total;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002748}
2749
Willy Tarreaue5733232019-05-22 19:24:06 +02002750#if defined(USE_LINUX_SPLICE)
Christopher Faulet1be55f92018-10-02 15:59:23 +02002751/* Send and get, using splicing */
2752static int h1_rcv_pipe(struct conn_stream *cs, struct pipe *pipe, unsigned int count)
2753{
2754 struct h1s *h1s = cs->ctx;
2755 struct h1m *h1m = (!conn_is_back(cs->conn) ? &h1s->req : &h1s->res);
2756 int ret = 0;
2757
Christopher Faulet6b81df72019-10-01 22:08:43 +02002758 TRACE_ENTER(H1_EV_STRM_RECV, cs->conn, h1s,, (size_t[]){count});
2759
Christopher Faulet9fa40c42019-11-05 16:24:27 +01002760 if ((h1m->flags & H1_MF_CHNK) || (h1m->state != H1_MSG_DATA && h1m->state != H1_MSG_TUNNEL)) {
Christopher Faulete18777b2019-04-16 16:46:36 +02002761 h1s->flags &= ~(H1S_F_BUF_FLUSH|H1S_F_SPLICED_DATA);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002762 TRACE_STATE("disable splicing on !(msg_data|msg_tunnel)", H1_EV_STRM_RECV, cs->conn, h1s);
2763 if (!(h1s->h1c->wait_event.events & SUB_RETRY_RECV)) {
2764 TRACE_STATE("restart receiving data, subscribing", H1_EV_STRM_RECV, cs->conn, h1s);
Christopher Faulet1146f972019-05-29 14:35:24 +02002765 cs->conn->xprt->subscribe(cs->conn, cs->conn->xprt_ctx, SUB_RETRY_RECV, &h1s->h1c->wait_event);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002766 }
Christopher Faulete18777b2019-04-16 16:46:36 +02002767 goto end;
2768 }
2769
Willy Tarreaufbdf90a2019-06-03 13:42:54 +02002770 if (h1s_data_pending(h1s)) {
Christopher Fauletd44ad5b2018-11-19 21:52:12 +01002771 h1s->flags |= H1S_F_BUF_FLUSH;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002772 TRACE_STATE("flush input buffer before splicing", H1_EV_STRM_RECV, cs->conn, h1s);
Christopher Faulet1be55f92018-10-02 15:59:23 +02002773 goto end;
Christopher Fauletd44ad5b2018-11-19 21:52:12 +01002774 }
2775
2776 h1s->flags &= ~H1S_F_BUF_FLUSH;
2777 h1s->flags |= H1S_F_SPLICED_DATA;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002778 TRACE_STATE("enable splicing", H1_EV_STRM_RECV, cs->conn, h1s);
Christopher Faulet1be55f92018-10-02 15:59:23 +02002779 if (h1m->state == H1_MSG_DATA && count > h1m->curr_len)
2780 count = h1m->curr_len;
Olivier Houcharde179d0e2019-03-21 18:27:17 +01002781 ret = cs->conn->xprt->rcv_pipe(cs->conn, cs->conn->xprt_ctx, pipe, count);
Christopher Faulet1146f972019-05-29 14:35:24 +02002782 if (h1m->state == H1_MSG_DATA && ret >= 0) {
Christopher Faulet1be55f92018-10-02 15:59:23 +02002783 h1m->curr_len -= ret;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002784 if (!h1m->curr_len) {
Christopher Faulete18777b2019-04-16 16:46:36 +02002785 h1s->flags &= ~(H1S_F_BUF_FLUSH|H1S_F_SPLICED_DATA);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002786 TRACE_STATE("disable splicing on !curr_len", H1_EV_STRM_RECV, cs->conn, h1s);
2787 }
Christopher Faulete18777b2019-04-16 16:46:36 +02002788 }
2789
Christopher Faulet1be55f92018-10-02 15:59:23 +02002790 end:
Christopher Faulet038ad812019-04-17 11:03:22 +02002791 if (conn_xprt_read0_pending(cs->conn)) {
Willy Tarreauc493c9c2019-06-03 14:18:22 +02002792 h1s->flags |= H1S_F_REOS;
Christopher Fauletf3158e92019-11-15 11:14:23 +01002793 h1s->flags &= ~(H1S_F_BUF_FLUSH|H1S_F_SPLICED_DATA);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002794 TRACE_STATE("read0 on connection", H1_EV_STRM_RECV, cs->conn, h1s);
Christopher Faulet038ad812019-04-17 11:03:22 +02002795 }
Christopher Faulet6b81df72019-10-01 22:08:43 +02002796
Willy Tarreau17ccd1a2020-01-17 16:19:34 +01002797 if (h1m->state != H1_MSG_DATA || !h1m->curr_len)
2798 cs->flags &= ~CS_FL_MAY_SPLICE;
2799
Christopher Faulet6b81df72019-10-01 22:08:43 +02002800 TRACE_LEAVE(H1_EV_STRM_RECV, cs->conn, h1s);
Christopher Faulet1be55f92018-10-02 15:59:23 +02002801 return ret;
Christopher Faulet1be55f92018-10-02 15:59:23 +02002802}
2803
2804static int h1_snd_pipe(struct conn_stream *cs, struct pipe *pipe)
2805{
2806 struct h1s *h1s = cs->ctx;
Christopher Faulet1be55f92018-10-02 15:59:23 +02002807 int ret = 0;
2808
Christopher Faulet6b81df72019-10-01 22:08:43 +02002809 TRACE_ENTER(H1_EV_STRM_SEND, cs->conn, h1s,, (size_t[]){pipe->data});
2810
Christopher Faulet1be55f92018-10-02 15:59:23 +02002811 if (b_data(&h1s->h1c->obuf))
2812 goto end;
2813
Olivier Houcharde179d0e2019-03-21 18:27:17 +01002814 ret = cs->conn->xprt->snd_pipe(cs->conn, cs->conn->xprt_ctx, pipe);
Christopher Faulet1be55f92018-10-02 15:59:23 +02002815 end:
Christopher Fauletd44ad5b2018-11-19 21:52:12 +01002816 if (pipe->data) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02002817 if (!(h1s->h1c->wait_event.events & SUB_RETRY_SEND)) {
2818 TRACE_STATE("more data to send, subscribing", H1_EV_STRM_SEND, cs->conn, h1s);
Olivier Houcharde179d0e2019-03-21 18:27:17 +01002819 cs->conn->xprt->subscribe(cs->conn, cs->conn->xprt_ctx, SUB_RETRY_SEND, &h1s->h1c->wait_event);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002820 }
Christopher Fauletd44ad5b2018-11-19 21:52:12 +01002821 }
Christopher Faulet6b81df72019-10-01 22:08:43 +02002822
2823 TRACE_LEAVE(H1_EV_STRM_SEND, cs->conn, h1s);
Christopher Faulet1be55f92018-10-02 15:59:23 +02002824 return ret;
2825}
2826#endif
2827
Olivier Houchard9b8e11e2019-10-25 16:19:26 +02002828static int h1_ctl(struct connection *conn, enum mux_ctl_type mux_ctl, void *output)
2829{
2830 int ret = 0;
2831 switch (mux_ctl) {
2832 case MUX_STATUS:
Willy Tarreau911db9b2020-01-23 16:27:54 +01002833 if (!(conn->flags & CO_FL_WAIT_XPRT))
Olivier Houchard9b8e11e2019-10-25 16:19:26 +02002834 ret |= MUX_STATUS_READY;
2835 return ret;
2836 default:
2837 return -1;
2838 }
2839}
2840
Olivier Houcharda8f6b432018-12-21 15:20:29 +01002841/* for debugging with CLI's "show fd" command */
2842static void h1_show_fd(struct buffer *msg, struct connection *conn)
2843{
2844 struct h1c *h1c = conn->ctx;
2845 struct h1s *h1s = h1c->h1s;
2846
Christopher Fauletf376a312019-01-04 15:16:06 +01002847 chunk_appendf(msg, " h1c.flg=0x%x .sub=%d .ibuf=%u@%p+%u/%u .obuf=%u@%p+%u/%u",
2848 h1c->flags, h1c->wait_event.events,
Olivier Houcharda8f6b432018-12-21 15:20:29 +01002849 (unsigned int)b_data(&h1c->ibuf), b_orig(&h1c->ibuf),
2850 (unsigned int)b_head_ofs(&h1c->ibuf), (unsigned int)b_size(&h1c->ibuf),
2851 (unsigned int)b_data(&h1c->obuf), b_orig(&h1c->obuf),
2852 (unsigned int)b_head_ofs(&h1c->obuf), (unsigned int)b_size(&h1c->obuf));
2853
2854 if (h1s) {
2855 char *method;
2856
2857 if (h1s->meth < HTTP_METH_OTHER)
2858 method = http_known_methods[h1s->meth].ptr;
2859 else
2860 method = "UNKNOWN";
2861 chunk_appendf(msg, " h1s=%p h1s.flg=0x%x .req.state=%s .res.state=%s"
2862 " .meth=%s status=%d",
2863 h1s, h1s->flags,
2864 h1m_state_str(h1s->req.state),
2865 h1m_state_str(h1s->res.state), method, h1s->status);
2866 if (h1s->cs)
2867 chunk_appendf(msg, " .cs.flg=0x%08x .cs.data=%p",
2868 h1s->cs->flags, h1s->cs->data);
2869 }
Christopher Faulet98fbe952019-07-22 16:18:24 +02002870}
2871
2872
2873/* Add an entry in the headers map. Returns -1 on error and 0 on success. */
2874static int add_hdr_case_adjust(const char *from, const char *to, char **err)
2875{
2876 struct h1_hdr_entry *entry;
2877
2878 /* Be sure there is a non-empty <to> */
2879 if (!strlen(to)) {
2880 memprintf(err, "expect <to>");
2881 return -1;
2882 }
2883
2884 /* Be sure only the case differs between <from> and <to> */
2885 if (strcasecmp(from, to)) {
2886 memprintf(err, "<from> and <to> must not differ execpt the case");
2887 return -1;
2888 }
2889
2890 /* Be sure <from> does not already existsin the tree */
2891 if (ebis_lookup(&hdrs_map.map, from)) {
2892 memprintf(err, "duplicate entry '%s'", from);
2893 return -1;
2894 }
2895
2896 /* Create the entry and insert it in the tree */
2897 entry = malloc(sizeof(*entry));
2898 if (!entry) {
2899 memprintf(err, "out of memory");
2900 return -1;
2901 }
2902
2903 entry->node.key = strdup(from);
2904 entry->name.ptr = strdup(to);
2905 entry->name.len = strlen(to);
2906 if (!entry->node.key || !entry->name.ptr) {
2907 free(entry->node.key);
Tim Duesterhused526372020-03-05 17:56:33 +01002908 istfree(&entry->name);
Christopher Faulet98fbe952019-07-22 16:18:24 +02002909 free(entry);
2910 memprintf(err, "out of memory");
2911 return -1;
2912 }
2913 ebis_insert(&hdrs_map.map, &entry->node);
2914 return 0;
2915}
2916
Olivier Houchardf12ca9f2020-02-20 16:00:18 +01002917/* Migrate the the connection to the current thread.
2918 * Return 0 if successful, non-zero otherwise.
2919 * Expected to be called with the old thread lock held.
2920 */
2921static int h1_takeover(struct connection *conn)
2922{
2923 struct h1c *h1c = conn->ctx;
2924
2925 if (fd_takeover(conn->handle.fd, conn) != 0)
2926 return -1;
2927 if (h1c->wait_event.events)
2928 h1c->conn->xprt->unsubscribe(h1c->conn, h1c->conn->xprt_ctx,
2929 h1c->wait_event.events, &h1c->wait_event);
2930 /* To let the tasklet know it should free itself, and do nothing else,
2931 * set its context to NULL.
2932 */
2933 h1c->wait_event.tasklet->context = NULL;
2934 tasklet_wakeup(h1c->wait_event.tasklet);
2935 if (h1c->task) {
2936 h1c->task->context = NULL;
2937 /* Wake the task, to let it free itself */
2938 task_wakeup(h1c->task, TASK_WOKEN_OTHER);
2939
2940 h1c->task = task_new(tid_bit);
2941 if (!h1c->task) {
2942 h1_release(h1c);
2943 return -1;
2944 }
2945 h1c->task->process = h1_timeout_task;
2946 h1c->task->context = h1c;
2947 }
2948 h1c->wait_event.tasklet = tasklet_new();
2949 if (!h1c->wait_event.tasklet) {
2950 h1_release(h1c);
2951 return -1;
2952 }
2953 h1c->wait_event.tasklet->process = h1_io_cb;
2954 h1c->wait_event.tasklet->context = h1c;
2955 h1c->conn->xprt->subscribe(h1c->conn, h1c->conn->xprt_ctx,
2956 SUB_RETRY_RECV, &h1c->wait_event);
2957
2958 return 0;
2959}
2960
2961
Christopher Faulet98fbe952019-07-22 16:18:24 +02002962static void h1_hdeaders_case_adjust_deinit()
2963{
2964 struct ebpt_node *node, *next;
2965 struct h1_hdr_entry *entry;
2966
2967 node = ebpt_first(&hdrs_map.map);
2968 while (node) {
2969 next = ebpt_next(node);
2970 ebpt_delete(node);
2971 entry = container_of(node, struct h1_hdr_entry, node);
2972 free(entry->node.key);
Tim Duesterhused526372020-03-05 17:56:33 +01002973 istfree(&entry->name);
Christopher Faulet98fbe952019-07-22 16:18:24 +02002974 free(entry);
2975 node = next;
2976 }
2977 free(hdrs_map.name);
Olivier Houcharda8f6b432018-12-21 15:20:29 +01002978}
2979
Christopher Faulet98fbe952019-07-22 16:18:24 +02002980static int cfg_h1_headers_case_adjust_postparser()
2981{
2982 FILE *file = NULL;
2983 char *c, *key_beg, *key_end, *value_beg, *value_end;
2984 char *err;
2985 int rc, line = 0, err_code = 0;
2986
2987 if (!hdrs_map.name)
2988 goto end;
2989
2990 file = fopen(hdrs_map.name, "r");
2991 if (!file) {
2992 ha_alert("config : h1-outgoing-headers-case-adjust-file '%s': failed to open file.\n",
2993 hdrs_map.name);
2994 err_code |= ERR_ALERT | ERR_FATAL;
2995 goto end;
2996 }
2997
2998 /* now parse all lines. The file may contain only two header name per
2999 * line, separated by spaces. All heading and trailing spaces will be
3000 * ignored. Lines starting with a # are ignored.
3001 */
3002 while (fgets(trash.area, trash.size, file) != NULL) {
3003 line++;
3004 c = trash.area;
3005
3006 /* strip leading spaces and tabs */
3007 while (*c == ' ' || *c == '\t')
3008 c++;
3009
3010 /* ignore emptu lines, or lines beginning with a dash */
3011 if (*c == '#' || *c == '\0' || *c == '\r' || *c == '\n')
3012 continue;
3013
3014 /* look for the end of the key */
3015 key_beg = c;
3016 while (*c != '\0' && *c != ' ' && *c != '\t' && *c != '\n' && *c != '\r')
3017 c++;
3018 key_end = c;
3019
3020 /* strip middle spaces and tabs */
3021 while (*c == ' ' || *c == '\t')
3022 c++;
3023
3024 /* look for the end of the value, it is the end of the line */
3025 value_beg = c;
3026 while (*c && *c != '\n' && *c != '\r')
3027 c++;
3028 value_end = c;
3029
3030 /* trim possibly trailing spaces and tabs */
3031 while (value_end > value_beg && (value_end[-1] == ' ' || value_end[-1] == '\t'))
3032 value_end--;
3033
3034 /* set final \0 and check entries */
3035 *key_end = '\0';
3036 *value_end = '\0';
3037
3038 err = NULL;
3039 rc = add_hdr_case_adjust(key_beg, value_beg, &err);
3040 if (rc < 0) {
Christopher Faulet98fbe952019-07-22 16:18:24 +02003041 ha_alert("config : h1-outgoing-headers-case-adjust-file '%s' : %s at line %d.\n",
3042 hdrs_map.name, err, line);
3043 err_code |= ERR_ALERT | ERR_FATAL;
Christopher Fauletcac5c092019-07-30 16:51:42 +02003044 free(err);
Christopher Faulet98fbe952019-07-22 16:18:24 +02003045 goto end;
3046 }
3047 if (rc > 0) {
Christopher Faulet98fbe952019-07-22 16:18:24 +02003048 ha_warning("config : h1-outgoing-headers-case-adjust-file '%s' : %s at line %d.\n",
3049 hdrs_map.name, err, line);
3050 err_code |= ERR_WARN;
Christopher Fauletcac5c092019-07-30 16:51:42 +02003051 free(err);
Christopher Faulet98fbe952019-07-22 16:18:24 +02003052 }
3053 }
3054
3055 end:
3056 if (file)
3057 fclose(file);
3058 hap_register_post_deinit(h1_hdeaders_case_adjust_deinit);
3059 return err_code;
3060}
3061
3062
3063/* config parser for global "h1-outgoing-header-case-adjust" */
3064static int cfg_parse_h1_header_case_adjust(char **args, int section_type, struct proxy *curpx,
3065 struct proxy *defpx, const char *file, int line,
3066 char **err)
3067{
3068 if (too_many_args(2, args, err, NULL))
3069 return -1;
3070 if (!*(args[1]) || !*(args[2])) {
3071 memprintf(err, "'%s' expects <from> and <to> as argument.", args[0]);
3072 return -1;
3073 }
3074 return add_hdr_case_adjust(args[1], args[2], err);
3075}
3076
3077/* config parser for global "h1-outgoing-headers-case-adjust-file" */
3078static int cfg_parse_h1_headers_case_adjust_file(char **args, int section_type, struct proxy *curpx,
3079 struct proxy *defpx, const char *file, int line,
3080 char **err)
3081{
3082 if (too_many_args(1, args, err, NULL))
3083 return -1;
3084 if (!*(args[1])) {
3085 memprintf(err, "'%s' expects <file> as argument.", args[0]);
3086 return -1;
3087 }
3088 free(hdrs_map.name);
3089 hdrs_map.name = strdup(args[1]);
3090 return 0;
3091}
3092
3093
3094/* config keyword parsers */
3095static struct cfg_kw_list cfg_kws = {{ }, {
3096 { CFG_GLOBAL, "h1-case-adjust", cfg_parse_h1_header_case_adjust },
3097 { CFG_GLOBAL, "h1-case-adjust-file", cfg_parse_h1_headers_case_adjust_file },
3098 { 0, NULL, NULL },
3099 }
3100};
3101
3102INITCALL1(STG_REGISTER, cfg_register_keywords, &cfg_kws);
3103REGISTER_CONFIG_POSTPARSER("h1-headers-map", cfg_h1_headers_case_adjust_postparser);
3104
3105
Christopher Faulet51dbc942018-09-13 09:05:15 +02003106/****************************************/
3107/* MUX initialization and instanciation */
3108/****************************************/
3109
3110/* The mux operations */
Willy Tarreauf77a1582019-01-10 10:00:08 +01003111static const struct mux_ops mux_h1_ops = {
Christopher Faulet51dbc942018-09-13 09:05:15 +02003112 .init = h1_init,
3113 .wake = h1_wake,
3114 .attach = h1_attach,
3115 .get_first_cs = h1_get_first_cs,
Christopher Fauletfeb11742018-11-29 15:12:34 +01003116 .get_cs_info = h1_get_cs_info,
Christopher Faulet51dbc942018-09-13 09:05:15 +02003117 .detach = h1_detach,
3118 .destroy = h1_destroy,
3119 .avail_streams = h1_avail_streams,
Willy Tarreau00f18a32019-01-26 12:19:01 +01003120 .used_streams = h1_used_streams,
Christopher Faulet51dbc942018-09-13 09:05:15 +02003121 .rcv_buf = h1_rcv_buf,
3122 .snd_buf = h1_snd_buf,
Willy Tarreaue5733232019-05-22 19:24:06 +02003123#if defined(USE_LINUX_SPLICE)
Christopher Faulet1be55f92018-10-02 15:59:23 +02003124 .rcv_pipe = h1_rcv_pipe,
3125 .snd_pipe = h1_snd_pipe,
3126#endif
Christopher Faulet51dbc942018-09-13 09:05:15 +02003127 .subscribe = h1_subscribe,
3128 .unsubscribe = h1_unsubscribe,
3129 .shutr = h1_shutr,
3130 .shutw = h1_shutw,
Olivier Houcharda8f6b432018-12-21 15:20:29 +01003131 .show_fd = h1_show_fd,
Olivier Houchard9a86fcb2018-12-11 16:47:14 +01003132 .reset = h1_reset,
Olivier Houchard9b8e11e2019-10-25 16:19:26 +02003133 .ctl = h1_ctl,
Olivier Houchardf12ca9f2020-02-20 16:00:18 +01003134 .takeover = h1_takeover,
Christopher Faulet9f38f5a2019-04-03 09:53:32 +02003135 .flags = MX_FL_HTX,
Willy Tarreau0a7a4fb2019-05-22 11:36:54 +02003136 .name = "H1",
Christopher Faulet51dbc942018-09-13 09:05:15 +02003137};
3138
3139
3140/* this mux registers default HTX proto */
3141static struct mux_proto_list mux_proto_htx =
Christopher Fauletc985f6c2019-07-15 11:42:52 +02003142{ .token = IST(""), .mode = PROTO_MODE_HTTP, .side = PROTO_SIDE_BOTH, .mux = &mux_h1_ops };
Christopher Faulet51dbc942018-09-13 09:05:15 +02003143
Willy Tarreau0108d902018-11-25 19:14:37 +01003144INITCALL1(STG_REGISTER, register_mux_proto, &mux_proto_htx);
3145
Christopher Faulet51dbc942018-09-13 09:05:15 +02003146/*
3147 * Local variables:
3148 * c-indent-level: 8
3149 * c-basic-offset: 8
3150 * End:
3151 */