blob: 484a389a94d03c83c01a1a91cf403f82a36241ac [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
418 if (likely(LIST_ISEMPTY(&h1c->buf_wait.list)) &&
419 unlikely((buf = b_alloc_margin(bptr, 0)) == NULL)) {
420 h1c->buf_wait.target = h1c;
421 h1c->buf_wait.wakeup_cb = h1_buf_available;
422 HA_SPIN_LOCK(BUF_WQ_LOCK, &buffer_wq_lock);
423 LIST_ADDQ(&buffer_wq, &h1c->buf_wait.list);
424 HA_SPIN_UNLOCK(BUF_WQ_LOCK, &buffer_wq_lock);
425 __conn_xprt_stop_recv(h1c->conn);
426 }
427 return buf;
428}
429
430/*
431 * Release a buffer, if any, and try to wake up entities waiting in the buffer
432 * wait queue.
433 */
434static inline void h1_release_buf(struct h1c *h1c, struct buffer *bptr)
435{
436 if (bptr->size) {
437 b_free(bptr);
438 offer_buffers(h1c->buf_wait.target, tasks_run_queue);
439 }
440}
441
Christopher Fauletaaa67bc2019-12-05 10:23:37 +0100442/* returns the number of streams in use on a connection to figure if it's idle
443 * or not. We rely on H1C_F_CS_IDLE to know if the connection is in-use or
444 * not. This flag is only set when no H1S is attached and when the previous
445 * stream, if any, was fully terminated without any error and in K/A mode.
Willy Tarreau00f18a32019-01-26 12:19:01 +0100446 */
447static int h1_used_streams(struct connection *conn)
Christopher Faulet51dbc942018-09-13 09:05:15 +0200448{
Willy Tarreau3d2ee552018-12-19 14:12:10 +0100449 struct h1c *h1c = conn->ctx;
Christopher Faulet51dbc942018-09-13 09:05:15 +0200450
Christopher Fauletaaa67bc2019-12-05 10:23:37 +0100451 return ((h1c->flags & H1C_F_CS_IDLE) ? 0 : 1);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200452}
453
Willy Tarreau00f18a32019-01-26 12:19:01 +0100454/* returns the number of streams still available on a connection */
455static int h1_avail_streams(struct connection *conn)
Olivier Houchard8defe4b2018-12-02 01:31:17 +0100456{
Willy Tarreau00f18a32019-01-26 12:19:01 +0100457 return 1 - h1_used_streams(conn);
Olivier Houchard8defe4b2018-12-02 01:31:17 +0100458}
Christopher Faulet51dbc942018-09-13 09:05:15 +0200459
Willy Tarreau00f18a32019-01-26 12:19:01 +0100460
Christopher Faulet51dbc942018-09-13 09:05:15 +0200461/*****************************************************************/
462/* functions below are dedicated to the mux setup and management */
463/*****************************************************************/
Willy Tarreaufbdf90a2019-06-03 13:42:54 +0200464
465/* returns non-zero if there are input data pending for stream h1s. */
466static inline size_t h1s_data_pending(const struct h1s *h1s)
467{
468 const struct h1m *h1m;
469
470 h1m = conn_is_back(h1s->h1c->conn) ? &h1s->res : &h1s->req;
471 if (h1m->state == H1_MSG_DONE)
Christopher Faulet76014fd2019-12-10 11:47:22 +0100472 return !(h1s->flags & H1S_F_PARSING_DONE);
Willy Tarreaufbdf90a2019-06-03 13:42:54 +0200473
474 return b_data(&h1s->h1c->ibuf);
475}
476
Christopher Faulet47365272018-10-31 17:40:50 +0100477static struct conn_stream *h1s_new_cs(struct h1s *h1s)
478{
479 struct conn_stream *cs;
480
Christopher Faulet6b81df72019-10-01 22:08:43 +0200481 TRACE_ENTER(H1_EV_STRM_NEW, h1s->h1c->conn, h1s);
Christopher Faulet47365272018-10-31 17:40:50 +0100482 cs = cs_new(h1s->h1c->conn);
Christopher Faulet6b81df72019-10-01 22:08:43 +0200483 if (!cs) {
484 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 +0100485 goto err;
Christopher Faulet6b81df72019-10-01 22:08:43 +0200486 }
Christopher Faulet47365272018-10-31 17:40:50 +0100487 h1s->cs = cs;
488 cs->ctx = h1s;
489
490 if (h1s->flags & H1S_F_NOT_FIRST)
491 cs->flags |= CS_FL_NOT_FIRST;
492
Willy Tarreau17ccd1a2020-01-17 16:19:34 +0100493 if (global.tune.options & GTUNE_USE_SPLICE)
494 cs->flags |= CS_FL_MAY_SPLICE;
495
Christopher Faulet6b81df72019-10-01 22:08:43 +0200496 if (stream_create_from_cs(cs) < 0) {
497 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 +0100498 goto err;
Christopher Faulet6b81df72019-10-01 22:08:43 +0200499 }
500
501 TRACE_LEAVE(H1_EV_STRM_NEW, h1s->h1c->conn, h1s);
Christopher Faulet47365272018-10-31 17:40:50 +0100502 return cs;
503
504 err:
505 cs_free(cs);
506 h1s->cs = NULL;
507 return NULL;
508}
509
Olivier Houchardf502aca2018-12-14 19:42:40 +0100510static struct h1s *h1s_create(struct h1c *h1c, struct conn_stream *cs, struct session *sess)
Christopher Faulet51dbc942018-09-13 09:05:15 +0200511{
512 struct h1s *h1s;
513
Christopher Faulet6b81df72019-10-01 22:08:43 +0200514 TRACE_ENTER(H1_EV_H1S_NEW, h1c->conn);
515
Christopher Faulet51dbc942018-09-13 09:05:15 +0200516 h1s = pool_alloc(pool_head_h1s);
517 if (!h1s)
Christopher Faulet47365272018-10-31 17:40:50 +0100518 goto fail;
Christopher Faulet51dbc942018-09-13 09:05:15 +0200519
520 h1s->h1c = h1c;
521 h1c->h1s = h1s;
522
Olivier Houchardf502aca2018-12-14 19:42:40 +0100523 h1s->sess = sess;
524
Christopher Faulet51dbc942018-09-13 09:05:15 +0200525 h1s->cs = NULL;
Christopher Fauletb992af02019-03-28 15:42:24 +0100526 h1s->flags = H1S_F_WANT_KAL;
Christopher Faulet51dbc942018-09-13 09:05:15 +0200527
Willy Tarreau1b0d4d12020-01-16 11:03:19 +0100528 h1s->subs = NULL;
Christopher Faulet129817b2018-09-20 16:14:40 +0200529
530 h1m_init_req(&h1s->req);
Christopher Fauletb992af02019-03-28 15:42:24 +0100531 h1s->req.flags |= (H1_MF_NO_PHDR|H1_MF_CLEAN_CONN_HDR);
Christopher Faulet9768c262018-10-22 09:34:31 +0200532
Christopher Faulet129817b2018-09-20 16:14:40 +0200533 h1m_init_res(&h1s->res);
Christopher Fauletb992af02019-03-28 15:42:24 +0100534 h1s->res.flags |= (H1_MF_NO_PHDR|H1_MF_CLEAN_CONN_HDR);
Christopher Faulet129817b2018-09-20 16:14:40 +0200535
536 h1s->status = 0;
537 h1s->meth = HTTP_METH_OTHER;
538
Christopher Faulet47365272018-10-31 17:40:50 +0100539 if (h1c->flags & H1C_F_WAIT_NEXT_REQ)
540 h1s->flags |= H1S_F_NOT_FIRST;
Christopher Fauletaaa67bc2019-12-05 10:23:37 +0100541 h1c->flags &= ~(H1C_F_CS_IDLE|H1C_F_WAIT_NEXT_REQ);
Christopher Faulet47365272018-10-31 17:40:50 +0100542
Christopher Faulet129817b2018-09-20 16:14:40 +0200543 if (!conn_is_back(h1c->conn)) {
544 if (h1c->px->options2 & PR_O2_REQBUG_OK)
545 h1s->req.err_pos = -1;
Christopher Faulete9b70722019-04-08 10:46:02 +0200546
547 /* For frontend connections we should always have a session */
548 if (!sess)
549 sess = h1c->conn->owner;
550
Dave Pirotte234740f2019-07-10 13:57:38 +0000551 /* Timers for subsequent sessions on the same HTTP 1.x connection
552 * measure from `now`, not from the connection accept time */
553 if (h1s->flags & H1S_F_NOT_FIRST) {
554 h1s->csinfo.create_date = date;
555 h1s->csinfo.tv_create = now;
556 h1s->csinfo.t_handshake = 0;
557 h1s->csinfo.t_idle = -1;
558 }
559 else {
560 h1s->csinfo.create_date = sess->accept_date;
561 h1s->csinfo.tv_create = sess->tv_accept;
562 h1s->csinfo.t_handshake = sess->t_handshake;
563 h1s->csinfo.t_idle = -1;
564 }
Christopher Faulet129817b2018-09-20 16:14:40 +0200565 }
566 else {
567 if (h1c->px->options2 & PR_O2_RSPBUG_OK)
568 h1s->res.err_pos = -1;
Christopher Fauletf2824e62018-10-01 12:12:37 +0200569
Christopher Fauletfeb11742018-11-29 15:12:34 +0100570 h1s->csinfo.create_date = date;
571 h1s->csinfo.tv_create = now;
572 h1s->csinfo.t_handshake = 0;
573 h1s->csinfo.t_idle = -1;
Christopher Faulete9b70722019-04-08 10:46:02 +0200574 }
Christopher Fauletfeb11742018-11-29 15:12:34 +0100575
Christopher Faulete9b70722019-04-08 10:46:02 +0200576 /* If a conn_stream already exists, attach it to this H1S. Otherwise we
577 * create a new one.
578 */
579 if (cs) {
Christopher Fauletf2824e62018-10-01 12:12:37 +0200580 cs->ctx = h1s;
581 h1s->cs = cs;
582 }
Christopher Faulet47365272018-10-31 17:40:50 +0100583 else {
584 cs = h1s_new_cs(h1s);
585 if (!cs)
586 goto fail;
587 }
Christopher Faulet6b81df72019-10-01 22:08:43 +0200588 TRACE_LEAVE(H1_EV_H1S_NEW, h1c->conn, h1s);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200589 return h1s;
Christopher Faulet47365272018-10-31 17:40:50 +0100590
591 fail:
592 pool_free(pool_head_h1s, h1s);
Christopher Faulet6b81df72019-10-01 22:08:43 +0200593 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 +0100594 return NULL;
Christopher Faulet51dbc942018-09-13 09:05:15 +0200595}
596
597static void h1s_destroy(struct h1s *h1s)
598{
Christopher Fauletf2824e62018-10-01 12:12:37 +0200599 if (h1s) {
600 struct h1c *h1c = h1s->h1c;
Christopher Faulet51dbc942018-09-13 09:05:15 +0200601
Christopher Faulet6b81df72019-10-01 22:08:43 +0200602 TRACE_POINT(H1_EV_H1S_END, h1c->conn, h1s);
Christopher Fauletf2824e62018-10-01 12:12:37 +0200603 h1c->h1s = NULL;
Christopher Faulet51dbc942018-09-13 09:05:15 +0200604
Willy Tarreau1b0d4d12020-01-16 11:03:19 +0100605 if (h1s->subs)
606 h1s->subs->events = 0;
Christopher Fauletf2824e62018-10-01 12:12:37 +0200607
Christopher Fauletcb55f482018-12-10 11:56:47 +0100608 h1c->flags &= ~H1C_F_IN_BUSY;
Christopher Faulet6b81df72019-10-01 22:08:43 +0200609 if (h1s->flags & (H1S_F_REQ_ERROR|H1S_F_RES_ERROR)) {
Christopher Faulet47365272018-10-31 17:40:50 +0100610 h1c->flags |= H1C_F_CS_ERROR;
Christopher Faulet6b81df72019-10-01 22:08:43 +0200611 TRACE_STATE("h1s on error, set error on h1c", H1_EV_H1C_ERR, h1c->conn, h1s);
612 }
Christopher Fauletaaa67bc2019-12-05 10:23:37 +0100613
614 if (!(h1c->flags & (H1C_F_CS_ERROR|H1C_F_CS_SHUTW_NOW|H1C_F_CS_SHUTDOWN)) && /* No error/shutdown on h1c */
615 !(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 +0100616 (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 +0100617 h1s->req.state == H1_MSG_DONE && h1s->res.state == H1_MSG_DONE) { /* req/res in DONE state */
618 h1c->flags |= (H1C_F_CS_IDLE|H1C_F_WAIT_NEXT_REQ);
619 TRACE_STATE("set idle mode on h1c, waiting for the next request", H1_EV_H1C_ERR, h1c->conn, h1s);
620 }
Christopher Fauletf2824e62018-10-01 12:12:37 +0200621 pool_free(pool_head_h1s, h1s);
622 }
Christopher Faulet51dbc942018-09-13 09:05:15 +0200623}
624
Christopher Fauletfeb11742018-11-29 15:12:34 +0100625static const struct cs_info *h1_get_cs_info(struct conn_stream *cs)
626{
627 struct h1s *h1s = cs->ctx;
628
629 if (h1s && !conn_is_back(cs->conn))
630 return &h1s->csinfo;
631 return NULL;
632}
633
Christopher Faulet51dbc942018-09-13 09:05:15 +0200634/*
Christopher Faulet51f73eb2019-04-08 11:22:47 +0200635 * Initialize the mux once it's attached. It is expected that conn->ctx points
636 * to the existing conn_stream (for outgoing connections or for incoming onces
637 * during a mux upgrade) or NULL (for incoming ones during the connexion
638 * establishment). <input> is always used as Input buffer and may contain
639 * data. It is the caller responsibility to not reuse it anymore. Returns < 0 on
640 * error.
Christopher Faulet51dbc942018-09-13 09:05:15 +0200641 */
Christopher Faulet51f73eb2019-04-08 11:22:47 +0200642static int h1_init(struct connection *conn, struct proxy *proxy, struct session *sess,
643 struct buffer *input)
Christopher Faulet51dbc942018-09-13 09:05:15 +0200644{
Christopher Faulet51dbc942018-09-13 09:05:15 +0200645 struct h1c *h1c;
Christopher Fauletb8093cf2019-01-03 16:27:28 +0100646 struct task *t = NULL;
Christopher Faulet6b81df72019-10-01 22:08:43 +0200647 void *conn_ctx = conn->ctx;
648
649 TRACE_ENTER(H1_EV_H1C_NEW);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200650
651 h1c = pool_alloc(pool_head_h1c);
652 if (!h1c)
653 goto fail_h1c;
654 h1c->conn = conn;
655 h1c->px = proxy;
656
Christopher Fauletaaa67bc2019-12-05 10:23:37 +0100657 h1c->flags = H1C_F_CS_IDLE;
Christopher Faulet51f73eb2019-04-08 11:22:47 +0200658 h1c->ibuf = *input;
Christopher Faulet51dbc942018-09-13 09:05:15 +0200659 h1c->obuf = BUF_NULL;
660 h1c->h1s = NULL;
Christopher Faulet51f73eb2019-04-08 11:22:47 +0200661 h1c->task = NULL;
Christopher Faulet51dbc942018-09-13 09:05:15 +0200662
Christopher Faulet51dbc942018-09-13 09:05:15 +0200663 LIST_INIT(&h1c->buf_wait.list);
Willy Tarreau3c39a7d2019-06-14 14:42:29 +0200664 h1c->wait_event.tasklet = tasklet_new();
665 if (!h1c->wait_event.tasklet)
Christopher Faulet51dbc942018-09-13 09:05:15 +0200666 goto fail;
Willy Tarreau3c39a7d2019-06-14 14:42:29 +0200667 h1c->wait_event.tasklet->process = h1_io_cb;
668 h1c->wait_event.tasklet->context = h1c;
Willy Tarreau4f6516d2018-12-19 13:59:17 +0100669 h1c->wait_event.events = 0;
Christopher Faulet51dbc942018-09-13 09:05:15 +0200670
Christopher Faulete9b70722019-04-08 10:46:02 +0200671 if (conn_is_back(conn)) {
Christopher Fauletb8093cf2019-01-03 16:27:28 +0100672 h1c->shut_timeout = h1c->timeout = proxy->timeout.server;
673 if (tick_isset(proxy->timeout.serverfin))
674 h1c->shut_timeout = proxy->timeout.serverfin;
675 } else {
676 h1c->shut_timeout = h1c->timeout = proxy->timeout.client;
677 if (tick_isset(proxy->timeout.clientfin))
678 h1c->shut_timeout = proxy->timeout.clientfin;
679 }
680 if (tick_isset(h1c->timeout)) {
681 t = task_new(tid_bit);
682 if (!t)
683 goto fail;
684
685 h1c->task = t;
686 t->process = h1_timeout_task;
687 t->context = h1c;
688 t->expire = tick_add(now_ms, h1c->timeout);
689 }
690
Willy Tarreau3d2ee552018-12-19 14:12:10 +0100691 conn->ctx = h1c;
Christopher Faulet129817b2018-09-20 16:14:40 +0200692
Christopher Faulet6b81df72019-10-01 22:08:43 +0200693 /* Always Create a new H1S */
694 if (!h1s_create(h1c, conn_ctx, sess))
695 goto fail;
Christopher Fauletb8093cf2019-01-03 16:27:28 +0100696
697 if (t)
698 task_queue(t);
699
Christopher Faulet51dbc942018-09-13 09:05:15 +0200700 /* Try to read, if nothing is available yet we'll just subscribe */
Willy Tarreau3c39a7d2019-06-14 14:42:29 +0200701 tasklet_wakeup(h1c->wait_event.tasklet);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200702
703 /* mux->wake will be called soon to complete the operation */
Christopher Faulet6b81df72019-10-01 22:08:43 +0200704 TRACE_LEAVE(H1_EV_H1C_NEW, conn, h1c->h1s);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200705 return 0;
706
707 fail:
Willy Tarreauf6562792019-05-07 19:05:35 +0200708 task_destroy(t);
Willy Tarreau3c39a7d2019-06-14 14:42:29 +0200709 if (h1c->wait_event.tasklet)
710 tasklet_free(h1c->wait_event.tasklet);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200711 pool_free(pool_head_h1c, h1c);
712 fail_h1c:
Christopher Faulet6b81df72019-10-01 22:08:43 +0200713 conn->ctx = conn_ctx; // restore saved context
714 TRACE_DEVEL("leaving in error", H1_EV_H1C_NEW|H1_EV_H1C_END|H1_EV_H1C_ERR);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200715 return -1;
716}
717
Christopher Faulet73c12072019-04-08 11:23:22 +0200718/* release function. This one should be called to free all resources allocated
719 * to the mux.
Christopher Faulet51dbc942018-09-13 09:05:15 +0200720 */
Christopher Faulet73c12072019-04-08 11:23:22 +0200721static void h1_release(struct h1c *h1c)
Christopher Faulet51dbc942018-09-13 09:05:15 +0200722{
Christopher Faulet61840e72019-04-15 09:33:32 +0200723 struct connection *conn = NULL;
Christopher Faulet39a96ee2019-04-08 10:52:21 +0200724
Christopher Faulet6b81df72019-10-01 22:08:43 +0200725 TRACE_POINT(H1_EV_H1C_END);
726
Christopher Faulet51dbc942018-09-13 09:05:15 +0200727 if (h1c) {
Christopher Faulet61840e72019-04-15 09:33:32 +0200728 /* The connection must be aattached to this mux to be released */
729 if (h1c->conn && h1c->conn->ctx == h1c)
730 conn = h1c->conn;
731
Christopher Faulet6b81df72019-10-01 22:08:43 +0200732 TRACE_DEVEL("freeing h1c", H1_EV_H1C_END, conn);
733
Christopher Faulet61840e72019-04-15 09:33:32 +0200734 if (conn && h1c->flags & H1C_F_UPG_H2C) {
Christopher Faulet6b81df72019-10-01 22:08:43 +0200735 TRACE_DEVEL("upgrading H1 to H2", H1_EV_H1C_END, conn);
Christopher Faulet0ef372a2019-04-08 10:57:20 +0200736 h1c->flags &= ~H1C_F_UPG_H2C;
Olivier Houchard2ab3dad2019-07-03 13:08:18 +0200737 /* Make sure we're no longer subscribed to anything */
738 if (h1c->wait_event.events)
739 conn->xprt->unsubscribe(conn, conn->xprt_ctx,
740 h1c->wait_event.events, &h1c->wait_event);
Christopher Fauletc985f6c2019-07-15 11:42:52 +0200741 if (conn_upgrade_mux_fe(conn, NULL, &h1c->ibuf, ist("h2"), PROTO_MODE_HTTP) != -1) {
Christopher Faulet0ef372a2019-04-08 10:57:20 +0200742 /* connection successfully upgraded to H2, this
743 * mux was already released */
744 return;
745 }
Christopher Faulet6b81df72019-10-01 22:08:43 +0200746 TRACE_DEVEL("h2 upgrade failed", H1_EV_H1C_END|H1_EV_H1C_ERR, conn);
Christopher Faulet0ef372a2019-04-08 10:57:20 +0200747 sess_log(conn->owner); /* Log if the upgrade failed */
748 }
749
Olivier Houchard45c44372019-06-11 14:06:23 +0200750
Christopher Faulet51dbc942018-09-13 09:05:15 +0200751 if (!LIST_ISEMPTY(&h1c->buf_wait.list)) {
752 HA_SPIN_LOCK(BUF_WQ_LOCK, &buffer_wq_lock);
753 LIST_DEL(&h1c->buf_wait.list);
754 LIST_INIT(&h1c->buf_wait.list);
755 HA_SPIN_UNLOCK(BUF_WQ_LOCK, &buffer_wq_lock);
756 }
757
758 h1_release_buf(h1c, &h1c->ibuf);
759 h1_release_buf(h1c, &h1c->obuf);
760
Christopher Fauletb8093cf2019-01-03 16:27:28 +0100761 if (h1c->task) {
762 h1c->task->context = NULL;
763 task_wakeup(h1c->task, TASK_WOKEN_OTHER);
764 h1c->task = NULL;
765 }
766
Willy Tarreau3c39a7d2019-06-14 14:42:29 +0200767 if (h1c->wait_event.tasklet)
768 tasklet_free(h1c->wait_event.tasklet);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200769
Christopher Fauletf2824e62018-10-01 12:12:37 +0200770 h1s_destroy(h1c->h1s);
Olivier Houchard0e079372019-04-15 17:51:16 +0200771 if (conn && h1c->wait_event.events != 0)
Olivier Houcharde179d0e2019-03-21 18:27:17 +0100772 conn->xprt->unsubscribe(conn, conn->xprt_ctx, h1c->wait_event.events,
Olivier Houchard0e079372019-04-15 17:51:16 +0200773 &h1c->wait_event);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200774 pool_free(pool_head_h1c, h1c);
775 }
776
Christopher Faulet39a96ee2019-04-08 10:52:21 +0200777 if (conn) {
778 conn->mux = NULL;
779 conn->ctx = NULL;
Christopher Faulet6b81df72019-10-01 22:08:43 +0200780 TRACE_DEVEL("freeing conn", H1_EV_H1C_END, conn);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200781
Christopher Faulet39a96ee2019-04-08 10:52:21 +0200782 conn_stop_tracking(conn);
783 conn_full_close(conn);
784 if (conn->destroy_cb)
785 conn->destroy_cb(conn);
786 conn_free(conn);
787 }
Christopher Faulet51dbc942018-09-13 09:05:15 +0200788}
789
790/******************************************************/
791/* functions below are for the H1 protocol processing */
792/******************************************************/
Christopher Faulet9768c262018-10-22 09:34:31 +0200793/* Parse the request version and set H1_MF_VER_11 on <h1m> if the version is
794 * greater or equal to 1.1
Christopher Fauletf2824e62018-10-01 12:12:37 +0200795 */
Christopher Faulet570d1612018-11-26 11:13:57 +0100796static void h1_parse_req_vsn(struct h1m *h1m, const struct htx_sl *sl)
Christopher Fauletf2824e62018-10-01 12:12:37 +0200797{
Christopher Faulet570d1612018-11-26 11:13:57 +0100798 const char *p = HTX_SL_REQ_VPTR(sl);
Christopher Faulet9768c262018-10-22 09:34:31 +0200799
Christopher Faulet570d1612018-11-26 11:13:57 +0100800 if ((HTX_SL_REQ_VLEN(sl) == 8) &&
Christopher Faulet9768c262018-10-22 09:34:31 +0200801 (*(p + 5) > '1' ||
802 (*(p + 5) == '1' && *(p + 7) >= '1')))
803 h1m->flags |= H1_MF_VER_11;
804}
Christopher Fauletf2824e62018-10-01 12:12:37 +0200805
Christopher Faulet9768c262018-10-22 09:34:31 +0200806/* Parse the response version and set H1_MF_VER_11 on <h1m> if the version is
807 * greater or equal to 1.1
808 */
Christopher Faulet570d1612018-11-26 11:13:57 +0100809static void h1_parse_res_vsn(struct h1m *h1m, const struct htx_sl *sl)
Christopher Faulet9768c262018-10-22 09:34:31 +0200810{
Christopher Faulet570d1612018-11-26 11:13:57 +0100811 const char *p = HTX_SL_RES_VPTR(sl);
Christopher Fauletf2824e62018-10-01 12:12:37 +0200812
Christopher Faulet570d1612018-11-26 11:13:57 +0100813 if ((HTX_SL_RES_VLEN(sl) == 8) &&
Christopher Faulet9768c262018-10-22 09:34:31 +0200814 (*(p + 5) > '1' ||
815 (*(p + 5) == '1' && *(p + 7) >= '1')))
816 h1m->flags |= H1_MF_VER_11;
817}
Christopher Fauletf2824e62018-10-01 12:12:37 +0200818
Christopher Fauletf2824e62018-10-01 12:12:37 +0200819/* Deduce the connection mode of the client connection, depending on the
820 * configuration and the H1 message flags. This function is called twice, the
821 * first time when the request is parsed and the second time when the response
822 * is parsed.
823 */
824static void h1_set_cli_conn_mode(struct h1s *h1s, struct h1m *h1m)
825{
826 struct proxy *fe = h1s->h1c->px;
Christopher Fauletf2824e62018-10-01 12:12:37 +0200827
828 if (h1m->flags & H1_MF_RESP) {
Christopher Fauletb992af02019-03-28 15:42:24 +0100829 /* Output direction: second pass */
Christopher Fauletf2824e62018-10-01 12:12:37 +0200830 if ((h1s->meth == HTTP_METH_CONNECT && h1s->status == 200) ||
Christopher Fauletb992af02019-03-28 15:42:24 +0100831 h1s->status == 101) {
832 /* Either we've established an explicit tunnel, or we're
833 * switching the protocol. In both cases, we're very unlikely to
834 * understand the next protocols. We have to switch to tunnel
835 * mode, so that we transfer the request and responses then let
836 * this protocol pass unmodified. When we later implement
837 * specific parsers for such protocols, we'll want to check the
838 * Upgrade header which contains information about that protocol
839 * for responses with status 101 (eg: see RFC2817 about TLS).
840 */
Christopher Fauletf2824e62018-10-01 12:12:37 +0200841 h1s->flags = (h1s->flags & ~H1S_F_WANT_MSK) | H1S_F_WANT_TUN;
Christopher Faulet6b81df72019-10-01 22:08:43 +0200842 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 +0100843 }
844 else if (h1s->flags & H1S_F_WANT_KAL) {
845 /* By default the client is in KAL mode. CLOSE mode mean
846 * it is imposed by the client itself. So only change
847 * KAL mode here. */
848 if (!(h1m->flags & H1_MF_XFER_LEN) || (h1m->flags & H1_MF_CONN_CLO)) {
849 /* no length known or explicit close => close */
850 h1s->flags = (h1s->flags & ~H1S_F_WANT_MSK) | H1S_F_WANT_CLO;
Christopher Faulet6b81df72019-10-01 22:08:43 +0200851 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 +0100852 }
853 else if (!(h1m->flags & H1_MF_CONN_KAL) &&
854 (fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_CLO) {
855 /* no explict keep-alive and option httpclose => close */
856 h1s->flags = (h1s->flags & ~H1S_F_WANT_MSK) | H1S_F_WANT_CLO;
Christopher Faulet6b81df72019-10-01 22:08:43 +0200857 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 +0100858 }
859 }
Christopher Fauletf2824e62018-10-01 12:12:37 +0200860 }
861 else {
Christopher Fauletb992af02019-03-28 15:42:24 +0100862 /* Input direction: first pass */
863 if (!(h1m->flags & (H1_MF_VER_11|H1_MF_CONN_KAL)) || h1m->flags & H1_MF_CONN_CLO) {
864 /* no explicit keep-alive in HTTP/1.0 or explicit close => close*/
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("detect close mode (req)", H1_EV_RX_DATA|H1_EV_RX_HDRS, h1s->h1c->conn, h1s);
Christopher Fauletb992af02019-03-28 15:42:24 +0100867 }
Christopher Fauletf2824e62018-10-01 12:12:37 +0200868 }
869
870 /* If KAL, check if the frontend is stopping. If yes, switch in CLO mode */
Christopher Faulet6b81df72019-10-01 22:08:43 +0200871 if (h1s->flags & H1S_F_WANT_KAL && fe->state == PR_STSTOPPED) {
Christopher Fauletf2824e62018-10-01 12:12:37 +0200872 h1s->flags = (h1s->flags & ~H1S_F_WANT_MSK) | H1S_F_WANT_CLO;
Christopher Faulet6b81df72019-10-01 22:08:43 +0200873 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);
874 }
Christopher Fauletf2824e62018-10-01 12:12:37 +0200875}
876
877/* Deduce the connection mode of the client connection, depending on the
878 * configuration and the H1 message flags. This function is called twice, the
879 * first time when the request is parsed and the second time when the response
880 * is parsed.
881 */
882static void h1_set_srv_conn_mode(struct h1s *h1s, struct h1m *h1m)
883{
Olivier Houchardf502aca2018-12-14 19:42:40 +0100884 struct session *sess = h1s->sess;
Christopher Fauletb992af02019-03-28 15:42:24 +0100885 struct proxy *be = h1s->h1c->px;
Olivier Houchardf502aca2018-12-14 19:42:40 +0100886 int fe_flags = sess ? sess->fe->options : 0;
Christopher Fauletf2824e62018-10-01 12:12:37 +0200887
Christopher Fauletf2824e62018-10-01 12:12:37 +0200888 if (h1m->flags & H1_MF_RESP) {
Christopher Fauletb992af02019-03-28 15:42:24 +0100889 /* Input direction: second pass */
Christopher Fauletf2824e62018-10-01 12:12:37 +0200890 if ((h1s->meth == HTTP_METH_CONNECT && h1s->status == 200) ||
Christopher Fauletb992af02019-03-28 15:42:24 +0100891 h1s->status == 101) {
892 /* Either we've established an explicit tunnel, or we're
893 * switching the protocol. In both cases, we're very unlikely to
894 * understand the next protocols. We have to switch to tunnel
895 * mode, so that we transfer the request and responses then let
896 * this protocol pass unmodified. When we later implement
897 * specific parsers for such protocols, we'll want to check the
898 * Upgrade header which contains information about that protocol
899 * for responses with status 101 (eg: see RFC2817 about TLS).
900 */
Christopher Fauletf2824e62018-10-01 12:12:37 +0200901 h1s->flags = (h1s->flags & ~H1S_F_WANT_MSK) | H1S_F_WANT_TUN;
Christopher Faulet6b81df72019-10-01 22:08:43 +0200902 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 +0100903 }
904 else if (h1s->flags & H1S_F_WANT_KAL) {
905 /* By default the server is in KAL mode. CLOSE mode mean
906 * it is imposed by haproxy itself. So only change KAL
907 * mode here. */
908 if (!(h1m->flags & H1_MF_XFER_LEN) || h1m->flags & H1_MF_CONN_CLO ||
909 !(h1m->flags & (H1_MF_VER_11|H1_MF_CONN_KAL))){
910 /* no length known or explicit close or no explicit keep-alive in HTTP/1.0 => close */
911 h1s->flags = (h1s->flags & ~H1S_F_WANT_MSK) | H1S_F_WANT_CLO;
Christopher Faulet6b81df72019-10-01 22:08:43 +0200912 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 +0100913 }
914 }
Christopher Fauletf2824e62018-10-01 12:12:37 +0200915 }
Christopher Faulet70033782018-12-05 13:50:11 +0100916 else {
Christopher Fauletb992af02019-03-28 15:42:24 +0100917 /* Output direction: first pass */
918 if (h1m->flags & H1_MF_CONN_CLO) {
919 /* explicit close => close */
Christopher Faulet70033782018-12-05 13:50:11 +0100920 h1s->flags = (h1s->flags & ~H1S_F_WANT_MSK) | H1S_F_WANT_CLO;
Christopher Faulet6b81df72019-10-01 22:08:43 +0200921 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 +0100922 }
923 else if (!(h1m->flags & H1_MF_CONN_KAL) &&
924 ((fe_flags & PR_O_HTTP_MODE) == PR_O_HTTP_SCL ||
925 (be->options & PR_O_HTTP_MODE) == PR_O_HTTP_SCL ||
926 (fe_flags & PR_O_HTTP_MODE) == PR_O_HTTP_CLO ||
927 (be->options & PR_O_HTTP_MODE) == PR_O_HTTP_CLO)) {
928 /* no explicit keep-alive option httpclose/server-close => close */
929 h1s->flags = (h1s->flags & ~H1S_F_WANT_MSK) | H1S_F_WANT_CLO;
Christopher Faulet6b81df72019-10-01 22:08:43 +0200930 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 +0100931 }
Christopher Faulet70033782018-12-05 13:50:11 +0100932 }
Christopher Fauletf2824e62018-10-01 12:12:37 +0200933
934 /* If KAL, check if the backend is stopping. If yes, switch in CLO mode */
Christopher Faulet6b81df72019-10-01 22:08:43 +0200935 if (h1s->flags & H1S_F_WANT_KAL && be->state == PR_STSTOPPED) {
Christopher Fauletf2824e62018-10-01 12:12:37 +0200936 h1s->flags = (h1s->flags & ~H1S_F_WANT_MSK) | H1S_F_WANT_CLO;
Christopher Faulet6b81df72019-10-01 22:08:43 +0200937 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);
938 }
Christopher Fauletf2824e62018-10-01 12:12:37 +0200939}
940
Christopher Fauletb992af02019-03-28 15:42:24 +0100941static void h1_update_req_conn_value(struct h1s *h1s, struct h1m *h1m, struct ist *conn_val)
Christopher Fauletf2824e62018-10-01 12:12:37 +0200942{
943 struct proxy *px = h1s->h1c->px;
Christopher Fauletf2824e62018-10-01 12:12:37 +0200944
945 /* Don't update "Connection:" header in TUNNEL mode or if "Upgrage"
946 * token is found
947 */
948 if (h1s->flags & H1S_F_WANT_TUN || h1m->flags & H1_MF_CONN_UPG)
Christopher Faulet9768c262018-10-22 09:34:31 +0200949 return;
Christopher Fauletf2824e62018-10-01 12:12:37 +0200950
951 if (h1s->flags & H1S_F_WANT_KAL || px->options2 & PR_O2_FAKE_KA) {
Christopher Faulet6b81df72019-10-01 22:08:43 +0200952 if (!(h1m->flags & H1_MF_VER_11)) {
953 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 +0100954 *conn_val = ist("keep-alive");
Christopher Faulet6b81df72019-10-01 22:08:43 +0200955 }
Christopher Fauletf2824e62018-10-01 12:12:37 +0200956 }
957 else { /* H1S_F_WANT_CLO && !PR_O2_FAKE_KA */
Christopher Faulet6b81df72019-10-01 22:08:43 +0200958 if (h1m->flags & H1_MF_VER_11) {
959 TRACE_STATE("add \"Connection: close\"", H1_EV_TX_DATA|H1_EV_TX_HDRS, h1s->h1c->conn, h1s);
Christopher Fauletb992af02019-03-28 15:42:24 +0100960 *conn_val = ist("close");
Christopher Faulet6b81df72019-10-01 22:08:43 +0200961 }
Christopher Fauletf2824e62018-10-01 12:12:37 +0200962 }
Christopher Fauletf2824e62018-10-01 12:12:37 +0200963}
964
Christopher Fauletb992af02019-03-28 15:42:24 +0100965static void h1_update_res_conn_value(struct h1s *h1s, struct h1m *h1m, struct ist *conn_val)
Christopher Fauletf2824e62018-10-01 12:12:37 +0200966{
Christopher Fauletf2824e62018-10-01 12:12:37 +0200967 /* Don't update "Connection:" header in TUNNEL mode or if "Upgrage"
968 * token is found
969 */
970 if (h1s->flags & H1S_F_WANT_TUN || h1m->flags & H1_MF_CONN_UPG)
Christopher Faulet9768c262018-10-22 09:34:31 +0200971 return;
Christopher Fauletf2824e62018-10-01 12:12:37 +0200972
973 if (h1s->flags & H1S_F_WANT_KAL) {
Christopher Fauletb992af02019-03-28 15:42:24 +0100974 if (!(h1m->flags & H1_MF_VER_11) ||
Christopher Faulet6b81df72019-10-01 22:08:43 +0200975 !((h1m->flags & h1s->req.flags) & H1_MF_VER_11)) {
976 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 +0100977 *conn_val = ist("keep-alive");
Christopher Faulet6b81df72019-10-01 22:08:43 +0200978 }
Christopher Fauletf2824e62018-10-01 12:12:37 +0200979 }
980 else { /* H1S_F_WANT_CLO */
Christopher Faulet6b81df72019-10-01 22:08:43 +0200981 if (h1m->flags & H1_MF_VER_11) {
982 TRACE_STATE("add \"Connection: close\"", H1_EV_TX_DATA|H1_EV_TX_HDRS, h1s->h1c->conn, h1s);
Christopher Fauletb992af02019-03-28 15:42:24 +0100983 *conn_val = ist("close");
Christopher Faulet6b81df72019-10-01 22:08:43 +0200984 }
Christopher Fauletf2824e62018-10-01 12:12:37 +0200985 }
Christopher Faulet9768c262018-10-22 09:34:31 +0200986}
Christopher Fauletf2824e62018-10-01 12:12:37 +0200987
Christopher Fauletb992af02019-03-28 15:42:24 +0100988static void h1_process_input_conn_mode(struct h1s *h1s, struct h1m *h1m, struct htx *htx)
Christopher Faulet9768c262018-10-22 09:34:31 +0200989{
Christopher Fauletb992af02019-03-28 15:42:24 +0100990 if (!conn_is_back(h1s->h1c->conn))
Christopher Faulet9768c262018-10-22 09:34:31 +0200991 h1_set_cli_conn_mode(h1s, h1m);
Christopher Fauletb992af02019-03-28 15:42:24 +0100992 else
Christopher Faulet9768c262018-10-22 09:34:31 +0200993 h1_set_srv_conn_mode(h1s, h1m);
Christopher Fauletf2824e62018-10-01 12:12:37 +0200994}
995
Christopher Fauletb992af02019-03-28 15:42:24 +0100996static void h1_process_output_conn_mode(struct h1s *h1s, struct h1m *h1m, struct ist *conn_val)
997{
998 if (!conn_is_back(h1s->h1c->conn))
999 h1_set_cli_conn_mode(h1s, h1m);
1000 else
1001 h1_set_srv_conn_mode(h1s, h1m);
1002
1003 if (!(h1m->flags & H1_MF_RESP))
1004 h1_update_req_conn_value(h1s, h1m, conn_val);
1005 else
1006 h1_update_res_conn_value(h1s, h1m, conn_val);
1007}
Christopher Faulete44769b2018-11-29 23:01:45 +01001008
Christopher Faulet98fbe952019-07-22 16:18:24 +02001009/* Try to adjust the case of the message header name using the global map
1010 * <hdrs_map>.
1011 */
1012static void h1_adjust_case_outgoing_hdr(struct h1s *h1s, struct h1m *h1m, struct ist *name)
1013{
1014 struct ebpt_node *node;
1015 struct h1_hdr_entry *entry;
1016
1017 /* No entry in the map, do nothing */
1018 if (eb_is_empty(&hdrs_map.map))
1019 return;
1020
1021 /* No conversion fo the request headers */
1022 if (!(h1m->flags & H1_MF_RESP) && !(h1s->h1c->px->options2 & PR_O2_H1_ADJ_BUGSRV))
1023 return;
1024
1025 /* No conversion fo the response headers */
1026 if ((h1m->flags & H1_MF_RESP) && !(h1s->h1c->px->options2 & PR_O2_H1_ADJ_BUGCLI))
1027 return;
1028
1029 node = ebis_lookup_len(&hdrs_map.map, name->ptr, name->len);
1030 if (!node)
1031 return;
1032 entry = container_of(node, struct h1_hdr_entry, node);
1033 name->ptr = entry->name.ptr;
1034 name->len = entry->name.len;
1035}
1036
Christopher Faulete44769b2018-11-29 23:01:45 +01001037/* Append the description of what is present in error snapshot <es> into <out>.
1038 * The description must be small enough to always fit in a buffer. The output
1039 * buffer may be the trash so the trash must not be used inside this function.
1040 */
1041static void h1_show_error_snapshot(struct buffer *out, const struct error_snapshot *es)
1042{
1043 chunk_appendf(out,
Christopher Fauletaa75b3d2018-12-05 16:20:40 +01001044 " H1 connection flags 0x%08x, H1 stream flags 0x%08x\n"
1045 " H1 msg state %s(%d), H1 msg flags 0x%08x\n"
1046 " H1 chunk len %lld bytes, H1 body len %lld bytes :\n",
1047 es->ctx.h1.c_flags, es->ctx.h1.s_flags,
1048 h1m_state_str(es->ctx.h1.state), es->ctx.h1.state,
1049 es->ctx.h1.m_flags, es->ctx.h1.m_clen, es->ctx.h1.m_blen);
Christopher Faulete44769b2018-11-29 23:01:45 +01001050}
1051/*
1052 * Capture a bad request or response and archive it in the proxy's structure.
1053 * By default it tries to report the error position as h1m->err_pos. However if
1054 * this one is not set, it will then report h1m->next, which is the last known
1055 * parsing point. The function is able to deal with wrapping buffers. It always
1056 * displays buffers as a contiguous area starting at buf->p. The direction is
1057 * determined thanks to the h1m's flags.
1058 */
1059static void h1_capture_bad_message(struct h1c *h1c, struct h1s *h1s,
1060 struct h1m *h1m, struct buffer *buf)
1061{
1062 struct session *sess = h1c->conn->owner;
1063 struct proxy *proxy = h1c->px;
1064 struct proxy *other_end = sess->fe;
1065 union error_snapshot_ctx ctx;
1066
Willy Tarreau598d7fc2018-12-18 18:10:38 +01001067 if (h1s->cs->data && !(h1m->flags & H1_MF_RESP))
Christopher Faulete44769b2018-11-29 23:01:45 +01001068 other_end = si_strm(h1s->cs->data)->be;
1069
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 Tarreau3c39a7d2019-06-14 14:42:29 +02001486 tasklet_wakeup(h1c->wait_event.tasklet);
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 Faulet9768c262018-10-22 09:34:31 +02001679 if (isteqi(n, ist("transfer-encoding")))
1680 h1_parse_xfer_enc_header(h1m, v);
Willy Tarreau27cd2232019-01-03 21:52:42 +01001681 else if (isteqi(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 Faulet9768c262018-10-22 09:34:31 +02001686 else if (isteqi(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;
1901 tasklet_wakeup(h1s->h1c->wait_event.tasklet);
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;
1990
Christopher Faulet6b81df72019-10-01 22:08:43 +02001991 TRACE_ENTER(H1_EV_H1C_RECV, h1c->conn);
1992
1993 if (h1c->wait_event.events & SUB_RETRY_RECV) {
1994 TRACE_DEVEL("leaving on sub_recv", H1_EV_H1C_RECV, h1c->conn);
Christopher Fauletc386a882018-12-04 16:06:28 +01001995 return (b_data(&h1c->ibuf));
Christopher Faulet6b81df72019-10-01 22:08:43 +02001996 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02001997
Olivier Houchard75159a92018-12-03 18:46:09 +01001998 if (!h1_recv_allowed(h1c)) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02001999 TRACE_DEVEL("leaving on !recv_allowed", H1_EV_H1C_RECV, h1c->conn);
Olivier Houchard75159a92018-12-03 18:46:09 +01002000 rcvd = 1;
Christopher Faulet9768c262018-10-22 09:34:31 +02002001 goto end;
Olivier Houchard75159a92018-12-03 18:46:09 +01002002 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02002003
Christopher Fauletf7d5ff32019-04-16 13:55:08 +02002004 if (!h1_get_buf(h1c, &h1c->ibuf)) {
2005 h1c->flags |= H1C_F_IN_ALLOC;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002006 TRACE_STATE("waiting for h1c ibuf allocation", H1_EV_H1C_RECV|H1_EV_H1C_BLK, h1c->conn);
Christopher Faulet9768c262018-10-22 09:34:31 +02002007 goto end;
2008 }
Christopher Faulet1be55f92018-10-02 15:59:23 +02002009
Christopher Fauletf7d5ff32019-04-16 13:55:08 +02002010 if (h1s && (h1s->flags & (H1S_F_BUF_FLUSH|H1S_F_SPLICED_DATA))) {
Willy Tarreaufbdf90a2019-06-03 13:42:54 +02002011 if (!h1s_data_pending(h1s))
Christopher Fauletf7d5ff32019-04-16 13:55:08 +02002012 h1_wake_stream_for_recv(h1s);
2013 rcvd = 1;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002014 TRACE_DEVEL("leaving on (buf_flush|spliced_data)", H1_EV_H1C_RECV, h1c->conn);
Christopher Faulet9768c262018-10-22 09:34:31 +02002015 goto end;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002016 }
2017
Olivier Houchard29a22bc2018-12-04 18:16:45 +01002018 /*
2019 * If we only have a small amount of data, realign it,
2020 * it's probably cheaper than doing 2 recv() calls.
2021 */
2022 if (b_data(&h1c->ibuf) > 0 && b_data(&h1c->ibuf) < 128)
2023 b_slow_realign(&h1c->ibuf, trash.area, 0);
2024
Willy Tarreau45f2b892018-12-05 07:59:27 +01002025 max = buf_room_for_htx_data(&h1c->ibuf);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002026 if (max) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02002027 if (h1c->flags & H1C_F_IN_FULL) {
2028 h1c->flags &= ~H1C_F_IN_FULL;
2029 TRACE_STATE("h1c ibuf not full anymore", H1_EV_H1C_RECV|H1_EV_H1C_BLK);
2030 }
Willy Tarreau78f548f2018-12-05 10:02:39 +01002031
Willy Tarreaue0f24ee2018-12-14 10:51:23 +01002032 b_realign_if_empty(&h1c->ibuf);
Willy Tarreau78f548f2018-12-05 10:02:39 +01002033 if (!b_data(&h1c->ibuf)) {
2034 /* try to pre-align the buffer like the rxbufs will be
2035 * to optimize memory copies.
2036 */
Willy Tarreau78f548f2018-12-05 10:02:39 +01002037 h1c->ibuf.head = sizeof(struct htx);
2038 }
Olivier Houcharde179d0e2019-03-21 18:27:17 +01002039 ret = conn->xprt->rcv_buf(conn, conn->xprt_ctx, &h1c->ibuf, max, 0);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002040 }
Christopher Faulet47365272018-10-31 17:40:50 +01002041 if (ret > 0) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02002042 TRACE_DATA("data received", H1_EV_H1C_RECV, h1c->conn,,, (size_t[]){ret});
Christopher Faulet51dbc942018-09-13 09:05:15 +02002043 rcvd = 1;
Christopher Fauletfeb11742018-11-29 15:12:34 +01002044 if (h1s && h1s->cs) {
Christopher Faulet37e36072018-12-04 15:54:12 +01002045 h1s->cs->flags |= (CS_FL_READ_PARTIAL|CS_FL_RCV_MORE);
Christopher Fauletfeb11742018-11-29 15:12:34 +01002046 if (h1s->csinfo.t_idle == -1)
2047 h1s->csinfo.t_idle = tv_ms_elapsed(&h1s->csinfo.tv_create, &now) - h1s->csinfo.t_handshake;
2048 }
Christopher Faulet47365272018-10-31 17:40:50 +01002049 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02002050
Olivier Houchardcc3fec82019-07-26 15:11:11 +02002051 if (ret > 0 || !h1_recv_allowed(h1c) || !buf_room_for_htx_data(&h1c->ibuf)) {
Christopher Faulet81d48432018-11-19 21:22:43 +01002052 rcvd = 1;
Christopher Fauletcf56b992018-12-11 16:12:31 +01002053 goto end;
2054 }
2055
Christopher Faulet6b81df72019-10-01 22:08:43 +02002056 TRACE_STATE("failed to receive data, subscribing", H1_EV_H1C_RECV, h1c->conn);
Olivier Houcharde179d0e2019-03-21 18:27:17 +01002057 conn->xprt->subscribe(conn, conn->xprt_ctx, SUB_RETRY_RECV, &h1c->wait_event);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002058
Christopher Faulet9768c262018-10-22 09:34:31 +02002059 end:
Christopher Faulete17fa2f2018-12-11 16:25:36 +01002060 if (ret > 0 || (conn->flags & CO_FL_ERROR) || conn_xprt_read0_pending(conn))
2061 h1_wake_stream_for_recv(h1s);
Olivier Houchard75159a92018-12-03 18:46:09 +01002062
Willy Tarreauc493c9c2019-06-03 14:18:22 +02002063 if (conn_xprt_read0_pending(conn) && h1s) {
2064 h1s->flags |= H1S_F_REOS;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002065 TRACE_STATE("read0 on connection", H1_EV_H1C_RECV, conn, h1s);
Willy Tarreaufbdf90a2019-06-03 13:42:54 +02002066 rcvd = 1;
2067 }
2068
Christopher Faulet51dbc942018-09-13 09:05:15 +02002069 if (!b_data(&h1c->ibuf))
2070 h1_release_buf(h1c, &h1c->ibuf);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002071 else if (!buf_room_for_htx_data(&h1c->ibuf)) {
Christopher Faulet51dbc942018-09-13 09:05:15 +02002072 h1c->flags |= H1C_F_IN_FULL;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002073 TRACE_STATE("h1c ibuf full", H1_EV_H1C_RECV|H1_EV_H1C_BLK);
2074 }
2075
2076 TRACE_LEAVE(H1_EV_H1C_RECV, h1c->conn);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002077 return rcvd;
2078}
2079
2080
2081/*
2082 * Try to send data if possible
2083 */
2084static int h1_send(struct h1c *h1c)
2085{
2086 struct connection *conn = h1c->conn;
2087 unsigned int flags = 0;
2088 size_t ret;
2089 int sent = 0;
2090
Christopher Faulet6b81df72019-10-01 22:08:43 +02002091 TRACE_ENTER(H1_EV_H1C_SEND, h1c->conn);
2092
2093 if (conn->flags & CO_FL_ERROR) {
2094 TRACE_DEVEL("leaving on connection error", H1_EV_H1C_SEND, h1c->conn);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002095 return 0;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002096 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02002097
2098 if (!b_data(&h1c->obuf))
2099 goto end;
2100
Christopher Faulet46230362019-10-17 16:04:20 +02002101 if (h1c->flags & H1C_F_CO_MSG_MORE)
Christopher Faulet51dbc942018-09-13 09:05:15 +02002102 flags |= CO_SFL_MSG_MORE;
Christopher Faulet46230362019-10-17 16:04:20 +02002103 if (h1c->flags & H1C_F_CO_STREAMER)
2104 flags |= CO_SFL_STREAMER;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002105
Olivier Houcharde179d0e2019-03-21 18:27:17 +01002106 ret = conn->xprt->snd_buf(conn, conn->xprt_ctx, &h1c->obuf, b_data(&h1c->obuf), flags);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002107 if (ret > 0) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02002108 TRACE_DATA("data sent", H1_EV_H1C_SEND, h1c->conn,,, (size_t[]){ret});
2109 if (h1c->flags & H1C_F_OUT_FULL) {
2110 h1c->flags &= ~H1C_F_OUT_FULL;
2111 TRACE_STATE("h1c obuf not full anymore", H1_EV_STRM_SEND|H1_EV_H1S_BLK, h1c->conn);
2112 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02002113 b_del(&h1c->obuf, ret);
2114 sent = 1;
2115 }
2116
Christopher Faulet145aa472018-12-06 10:56:20 +01002117 if (conn->flags & (CO_FL_ERROR|CO_FL_SOCK_WR_SH)) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02002118 TRACE_DEVEL("connection error or output closed", H1_EV_H1C_SEND, h1c->conn);
Christopher Faulet145aa472018-12-06 10:56:20 +01002119 /* error or output closed, nothing to send, clear the buffer to release it */
2120 b_reset(&h1c->obuf);
2121 }
2122
Christopher Faulet51dbc942018-09-13 09:05:15 +02002123 end:
Christopher Faulete17fa2f2018-12-11 16:25:36 +01002124 if (!(h1c->flags & H1C_F_OUT_FULL))
2125 h1_wake_stream_for_send(h1c->h1s);
Olivier Houchard75159a92018-12-03 18:46:09 +01002126
Christopher Faulet51dbc942018-09-13 09:05:15 +02002127 /* We're done, no more to send */
2128 if (!b_data(&h1c->obuf)) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02002129 TRACE_DEVEL("leaving with everything sent", H1_EV_H1C_SEND, h1c->conn);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002130 h1_release_buf(h1c, &h1c->obuf);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002131 if (h1c->flags & H1C_F_CS_SHUTW_NOW) {
2132 TRACE_STATE("process pending shutdown for writes", H1_EV_H1C_SEND, h1c->conn);
Christopher Faulet666a0c42019-01-08 11:12:04 +01002133 h1_shutw_conn(conn, CS_SHW_NORMAL);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002134 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02002135 }
Christopher Faulet6b81df72019-10-01 22:08:43 +02002136 else if (!(h1c->wait_event.events & SUB_RETRY_SEND)) {
2137 TRACE_STATE("more data to send, subscribing", H1_EV_H1C_SEND, h1c->conn);
Olivier Houcharde179d0e2019-03-21 18:27:17 +01002138 conn->xprt->subscribe(conn, conn->xprt_ctx, SUB_RETRY_SEND, &h1c->wait_event);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002139 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02002140
Christopher Faulet6b81df72019-10-01 22:08:43 +02002141 TRACE_LEAVE(H1_EV_H1C_SEND, h1c->conn);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002142 return sent;
2143}
2144
Christopher Faulet51dbc942018-09-13 09:05:15 +02002145
2146/* callback called on any event by the connection handler.
2147 * It applies changes and returns zero, or < 0 if it wants immediate
2148 * destruction of the connection.
2149 */
2150static int h1_process(struct h1c * h1c)
2151{
2152 struct connection *conn = h1c->conn;
Christopher Fauletfeb11742018-11-29 15:12:34 +01002153 struct h1s *h1s = h1c->h1s;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002154
Christopher Faulet6b81df72019-10-01 22:08:43 +02002155 TRACE_ENTER(H1_EV_H1C_WAKE, conn);
2156
Willy Tarreau3d2ee552018-12-19 14:12:10 +01002157 if (!conn->ctx)
Christopher Faulet51dbc942018-09-13 09:05:15 +02002158 return -1;
2159
Christopher Fauletfeb11742018-11-29 15:12:34 +01002160 if (!h1s) {
Christopher Faulet37243bc2019-07-11 15:40:25 +02002161 if (h1c->flags & (H1C_F_CS_ERROR|H1C_F_CS_SHUTDOWN) ||
Christopher Fauletaaa67bc2019-12-05 10:23:37 +01002162 conn->flags & (CO_FL_ERROR|CO_FL_SOCK_RD_SH|CO_FL_SOCK_WR_SH))
Christopher Faulet539e0292018-11-19 10:40:09 +01002163 goto release;
Christopher Fauletaaa67bc2019-12-05 10:23:37 +01002164 if (!conn_is_back(conn) && (h1c->flags & H1C_F_CS_IDLE)) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02002165 TRACE_STATE("K/A incoming connection, create new H1 stream", H1_EV_H1C_WAKE, conn);
Olivier Houchardf502aca2018-12-14 19:42:40 +01002166 if (!h1s_create(h1c, NULL, NULL))
Christopher Faulet539e0292018-11-19 10:40:09 +01002167 goto release;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002168 }
Christopher Faulet1a7ad7a2018-12-04 16:10:44 +01002169 else
Olivier Houcharde7284782018-12-06 18:54:54 +01002170 goto end;
Christopher Fauletfeb11742018-11-29 15:12:34 +01002171 h1s = h1c->h1s;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002172 }
2173
Christopher Fauletfeb11742018-11-29 15:12:34 +01002174 if (b_data(&h1c->ibuf) && h1s->csinfo.t_idle == -1)
2175 h1s->csinfo.t_idle = tv_ms_elapsed(&h1s->csinfo.tv_create, &now) - h1s->csinfo.t_handshake;
2176
Christopher Faulet6b81df72019-10-01 22:08:43 +02002177 if (conn_xprt_read0_pending(conn)) {
Willy Tarreauc493c9c2019-06-03 14:18:22 +02002178 h1s->flags |= H1S_F_REOS;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002179 TRACE_STATE("read0 on connection", H1_EV_H1C_RECV, conn, h1s);
2180 }
Willy Tarreauc493c9c2019-06-03 14:18:22 +02002181
Willy Tarreaufbdf90a2019-06-03 13:42:54 +02002182 if (!h1s_data_pending(h1s) && h1s && h1s->cs && h1s->cs->data_cb->wake &&
Willy Tarreauc493c9c2019-06-03 14:18:22 +02002183 (h1s->flags & H1S_F_REOS || h1c->flags & H1C_F_CS_ERROR ||
Olivier Houchard32d75ed2019-01-14 17:27:23 +01002184 conn->flags & (CO_FL_ERROR | CO_FL_SOCK_WR_SH))) {
Olivier Houchard75159a92018-12-03 18:46:09 +01002185 if (h1c->flags & H1C_F_CS_ERROR || conn->flags & CO_FL_ERROR)
Willy Tarreauc493c9c2019-06-03 14:18:22 +02002186 h1s->cs->flags |= CS_FL_ERROR;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002187 TRACE_POINT(H1_EV_STRM_WAKE, h1c->conn, h1s);
Olivier Houchard75159a92018-12-03 18:46:09 +01002188 h1s->cs->data_cb->wake(h1s->cs);
2189 }
Christopher Faulet47365272018-10-31 17:40:50 +01002190 end:
Christopher Fauletb8093cf2019-01-03 16:27:28 +01002191 if (h1c->task) {
2192 h1c->task->expire = TICK_ETERNITY;
2193 if (b_data(&h1c->obuf)) {
Christopher Faulet666a0c42019-01-08 11:12:04 +01002194 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 +01002195 ? h1c->shut_timeout
2196 : h1c->timeout));
2197 task_queue(h1c->task);
2198 }
2199 }
Christopher Faulet6b81df72019-10-01 22:08:43 +02002200 TRACE_LEAVE(H1_EV_H1C_WAKE, conn);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002201 return 0;
Christopher Faulet539e0292018-11-19 10:40:09 +01002202
2203 release:
Christopher Faulet73c12072019-04-08 11:23:22 +02002204 h1_release(h1c);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002205 TRACE_DEVEL("leaving after releasing the connection", H1_EV_H1C_WAKE);
Christopher Faulet539e0292018-11-19 10:40:09 +01002206 return -1;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002207}
2208
2209static struct task *h1_io_cb(struct task *t, void *ctx, unsigned short status)
2210{
2211 struct h1c *h1c = ctx;
2212 int ret = 0;
2213
Christopher Faulet6b81df72019-10-01 22:08:43 +02002214 TRACE_POINT(H1_EV_H1C_WAKE, h1c->conn);
2215
Willy Tarreau4f6516d2018-12-19 13:59:17 +01002216 if (!(h1c->wait_event.events & SUB_RETRY_SEND))
Christopher Faulet51dbc942018-09-13 09:05:15 +02002217 ret = h1_send(h1c);
Willy Tarreau4f6516d2018-12-19 13:59:17 +01002218 if (!(h1c->wait_event.events & SUB_RETRY_RECV))
Christopher Faulet51dbc942018-09-13 09:05:15 +02002219 ret |= h1_recv(h1c);
Christopher Faulet81d48432018-11-19 21:22:43 +01002220 if (ret || !h1c->h1s)
Christopher Faulet51dbc942018-09-13 09:05:15 +02002221 h1_process(h1c);
2222 return NULL;
2223}
2224
Olivier Houchard9a86fcb2018-12-11 16:47:14 +01002225static void h1_reset(struct connection *conn)
2226{
Olivier Houchard9a86fcb2018-12-11 16:47:14 +01002227
Olivier Houchard9a86fcb2018-12-11 16:47:14 +01002228}
Christopher Faulet51dbc942018-09-13 09:05:15 +02002229
2230static int h1_wake(struct connection *conn)
2231{
Willy Tarreau3d2ee552018-12-19 14:12:10 +01002232 struct h1c *h1c = conn->ctx;
Olivier Houchard75159a92018-12-03 18:46:09 +01002233 int ret;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002234
Christopher Faulet6b81df72019-10-01 22:08:43 +02002235 TRACE_POINT(H1_EV_H1C_WAKE, conn);
2236
Christopher Faulet539e0292018-11-19 10:40:09 +01002237 h1_send(h1c);
Olivier Houchard75159a92018-12-03 18:46:09 +01002238 ret = h1_process(h1c);
2239 if (ret == 0) {
2240 struct h1s *h1s = h1c->h1s;
2241
Christopher Faulet6b81df72019-10-01 22:08:43 +02002242 if (h1s && h1s->cs && h1s->cs->data_cb->wake) {
2243 TRACE_POINT(H1_EV_STRM_WAKE, h1c->conn, h1s);
Olivier Houchard75159a92018-12-03 18:46:09 +01002244 ret = h1s->cs->data_cb->wake(h1s->cs);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002245 }
Olivier Houchard75159a92018-12-03 18:46:09 +01002246 }
2247 return ret;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002248}
2249
Christopher Fauletb8093cf2019-01-03 16:27:28 +01002250/* Connection timeout management. The principle is that if there's no receipt
2251 * nor sending for a certain amount of time, the connection is closed.
2252 */
2253static struct task *h1_timeout_task(struct task *t, void *context, unsigned short state)
2254{
2255 struct h1c *h1c = context;
2256 int expired = tick_is_expired(t->expire, now_ms);
2257
Christopher Faulet6b81df72019-10-01 22:08:43 +02002258 TRACE_POINT(H1_EV_H1C_WAKE, h1c ? h1c->conn : NULL);
2259
2260 if (!expired && h1c) {
2261 TRACE_DEVEL("leaving (not expired)", H1_EV_H1C_WAKE, h1c->conn);
Christopher Fauletb8093cf2019-01-03 16:27:28 +01002262 return t;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002263 }
Christopher Fauletb8093cf2019-01-03 16:27:28 +01002264
Olivier Houchard3f795f72019-04-17 22:51:06 +02002265 task_destroy(t);
Christopher Fauletb8093cf2019-01-03 16:27:28 +01002266
2267 if (!h1c) {
2268 /* resources were already deleted */
Christopher Faulet6b81df72019-10-01 22:08:43 +02002269 TRACE_DEVEL("leaving (not more h1c)", H1_EV_H1C_WAKE);
Christopher Fauletb8093cf2019-01-03 16:27:28 +01002270 return NULL;
2271 }
2272
2273 h1c->task = NULL;
2274 /* If a stream is still attached to the mux, just set an error and wait
2275 * for the stream's timeout. Otherwise, release the mux. This is only ok
2276 * because same timeouts are used.
2277 */
Christopher Faulet6b81df72019-10-01 22:08:43 +02002278 if (h1c->h1s && h1c->h1s->cs) {
Christopher Fauletb8093cf2019-01-03 16:27:28 +01002279 h1c->flags |= H1C_F_CS_ERROR;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002280 TRACE_STATE("error on h1c, h1s still attached (expired)", H1_EV_H1C_WAKE|H1_EV_H1C_ERR, h1c->conn, h1c->h1s);
2281 }
Christopher Fauletb8093cf2019-01-03 16:27:28 +01002282 else
Christopher Faulet73c12072019-04-08 11:23:22 +02002283 h1_release(h1c);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002284
Christopher Fauletb8093cf2019-01-03 16:27:28 +01002285 return NULL;
2286}
2287
Christopher Faulet51dbc942018-09-13 09:05:15 +02002288/*******************************************/
2289/* functions below are used by the streams */
2290/*******************************************/
Christopher Faulet73c12072019-04-08 11:23:22 +02002291
Christopher Faulet51dbc942018-09-13 09:05:15 +02002292/*
2293 * Attach a new stream to a connection
2294 * (Used for outgoing connections)
2295 */
Olivier Houchardf502aca2018-12-14 19:42:40 +01002296static struct conn_stream *h1_attach(struct connection *conn, struct session *sess)
Christopher Faulet51dbc942018-09-13 09:05:15 +02002297{
Willy Tarreau3d2ee552018-12-19 14:12:10 +01002298 struct h1c *h1c = conn->ctx;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002299 struct conn_stream *cs = NULL;
2300 struct h1s *h1s;
2301
Christopher Faulet6b81df72019-10-01 22:08:43 +02002302 TRACE_ENTER(H1_EV_STRM_NEW, conn);
2303 if (h1c->flags & H1C_F_CS_ERROR) {
2304 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 +02002305 goto end;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002306 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02002307
2308 cs = cs_new(h1c->conn);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002309 if (!cs) {
2310 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 +02002311 goto end;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002312 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02002313
Olivier Houchardf502aca2018-12-14 19:42:40 +01002314 h1s = h1s_create(h1c, cs, sess);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002315 if (h1s == NULL) {
2316 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 +02002317 goto end;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002318 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02002319
Christopher Faulet6b81df72019-10-01 22:08:43 +02002320 TRACE_LEAVE(H1_EV_STRM_NEW, conn, h1s);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002321 return cs;
2322 end:
2323 cs_free(cs);
2324 return NULL;
2325}
2326
2327/* Retrieves a valid conn_stream from this connection, or returns NULL. For
2328 * this mux, it's easy as we can only store a single conn_stream.
2329 */
2330static const struct conn_stream *h1_get_first_cs(const struct connection *conn)
2331{
Willy Tarreau3d2ee552018-12-19 14:12:10 +01002332 struct h1c *h1c = conn->ctx;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002333 struct h1s *h1s = h1c->h1s;
2334
2335 if (h1s)
2336 return h1s->cs;
2337
2338 return NULL;
2339}
2340
Christopher Faulet73c12072019-04-08 11:23:22 +02002341static void h1_destroy(void *ctx)
Christopher Faulet51dbc942018-09-13 09:05:15 +02002342{
Christopher Faulet73c12072019-04-08 11:23:22 +02002343 struct h1c *h1c = ctx;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002344
Christopher Faulet6b81df72019-10-01 22:08:43 +02002345 TRACE_POINT(H1_EV_H1C_END, h1c->conn);
Christopher Faulet39a96ee2019-04-08 10:52:21 +02002346 if (!h1c->h1s || !h1c->conn || h1c->conn->ctx != h1c)
Christopher Faulet73c12072019-04-08 11:23:22 +02002347 h1_release(h1c);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002348}
2349
2350/*
2351 * Detach the stream from the connection and possibly release the connection.
2352 */
2353static void h1_detach(struct conn_stream *cs)
2354{
2355 struct h1s *h1s = cs->ctx;
2356 struct h1c *h1c;
Olivier Houchardf502aca2018-12-14 19:42:40 +01002357 struct session *sess;
Olivier Houchard8a786902018-12-15 16:05:40 +01002358 int is_not_first;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002359
Christopher Faulet6b81df72019-10-01 22:08:43 +02002360 TRACE_ENTER(H1_EV_STRM_END, h1s ? h1s->h1c->conn : NULL, h1s);
2361
Christopher Faulet51dbc942018-09-13 09:05:15 +02002362 cs->ctx = NULL;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002363 if (!h1s) {
2364 TRACE_LEAVE(H1_EV_STRM_END);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002365 return;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002366 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02002367
Olivier Houchardf502aca2018-12-14 19:42:40 +01002368 sess = h1s->sess;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002369 h1c = h1s->h1c;
2370 h1s->cs = NULL;
2371
Olivier Houchard8a786902018-12-15 16:05:40 +01002372 is_not_first = h1s->flags & H1S_F_NOT_FIRST;
2373 h1s_destroy(h1s);
2374
Christopher Fauletaaa67bc2019-12-05 10:23:37 +01002375 if (conn_is_back(h1c->conn) && (h1c->flags & H1C_F_CS_IDLE)) {
Christopher Fauletf1204b82019-07-19 14:51:06 +02002376 /* If there are any excess server data in the input buffer,
2377 * release it and close the connection ASAP (some data may
2378 * remain in the output buffer). This happens if a server sends
2379 * invalid responses. So in such case, we don't want to reuse
2380 * the connection
Christopher Faulet03627242019-07-19 11:34:08 +02002381 */
Christopher Fauletf1204b82019-07-19 14:51:06 +02002382 if (b_data(&h1c->ibuf)) {
2383 h1_release_buf(h1c, &h1c->ibuf);
Christopher Fauletaaa67bc2019-12-05 10:23:37 +01002384 h1c->flags = (h1c->flags & ~H1C_F_CS_IDLE) | H1C_F_CS_SHUTW_NOW;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002385 TRACE_DEVEL("remaining data on detach, kill connection", H1_EV_STRM_END|H1_EV_H1C_END);
Christopher Fauletf1204b82019-07-19 14:51:06 +02002386 goto release;
2387 }
Christopher Faulet03627242019-07-19 11:34:08 +02002388
Christopher Faulet9400a392018-11-23 23:10:39 +01002389 /* Never ever allow to reuse a connection from a non-reuse backend */
Olivier Houchard44d59142018-12-13 18:46:22 +01002390 if ((h1c->px->options & PR_O_REUSE_MASK) == PR_O_REUSE_NEVR)
Christopher Faulet9400a392018-11-23 23:10:39 +01002391 h1c->conn->flags |= CO_FL_PRIVATE;
2392
Olivier Houchard44d59142018-12-13 18:46:22 +01002393 if (!(h1c->conn->owner)) {
Olivier Houchardf502aca2018-12-14 19:42:40 +01002394 h1c->conn->owner = sess;
Olivier Houchard351411f2018-12-27 17:20:54 +01002395 if (!session_add_conn(sess, h1c->conn, h1c->conn->target)) {
2396 h1c->conn->owner = NULL;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002397 if (!srv_add_to_idle_list(objt_server(h1c->conn->target), h1c->conn)) {
Olivier Houchard351411f2018-12-27 17:20:54 +01002398 /* The server doesn't want it, let's kill the connection right away */
2399 h1c->conn->mux->destroy(h1c->conn);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002400 TRACE_DEVEL("outgoing connection killed", H1_EV_STRM_END|H1_EV_H1C_END);
2401 goto end;
2402 }
2403 tasklet_wakeup(h1c->wait_event.tasklet);
2404 TRACE_DEVEL("reusable idle connection", H1_EV_STRM_END, h1c->conn);
2405 goto end;
Olivier Houchard351411f2018-12-27 17:20:54 +01002406 }
Olivier Houchard44d59142018-12-13 18:46:22 +01002407 }
Olivier Houcharda4d4fdf2018-12-14 19:27:06 +01002408 if (h1c->conn->owner == sess) {
2409 int ret = session_check_idle_conn(sess, h1c->conn);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002410 if (ret == -1) {
Olivier Houcharda4d4fdf2018-12-14 19:27:06 +01002411 /* The connection got destroyed, let's leave */
Christopher Faulet6b81df72019-10-01 22:08:43 +02002412 TRACE_DEVEL("outgoing connection killed", H1_EV_STRM_END|H1_EV_H1C_END);
2413 goto end;
2414 }
Olivier Houcharda4d4fdf2018-12-14 19:27:06 +01002415 else if (ret == 1) {
2416 /* The connection was added to the server list,
2417 * wake the task so we can subscribe to events
2418 */
Willy Tarreau3c39a7d2019-06-14 14:42:29 +02002419 tasklet_wakeup(h1c->wait_event.tasklet);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002420 TRACE_DEVEL("reusable idle connection", H1_EV_STRM_END, h1c->conn);
2421 goto end;
Olivier Houcharda4d4fdf2018-12-14 19:27:06 +01002422 }
Christopher Faulet6b81df72019-10-01 22:08:43 +02002423 TRACE_DEVEL("connection in idle session list", H1_EV_STRM_END, h1c->conn);
Olivier Houcharda4d4fdf2018-12-14 19:27:06 +01002424 }
Christopher Faulet9400a392018-11-23 23:10:39 +01002425 /* we're in keep-alive with an idle connection, monitor it if not already done */
Olivier Houchard44d59142018-12-13 18:46:22 +01002426 if (LIST_ISEMPTY(&h1c->conn->list)) {
Christopher Faulet9400a392018-11-23 23:10:39 +01002427 struct server *srv = objt_server(h1c->conn->target);
2428
2429 if (srv) {
2430 if (h1c->conn->flags & CO_FL_PRIVATE)
2431 LIST_ADD(&srv->priv_conns[tid], &h1c->conn->list);
Olivier Houchard8a786902018-12-15 16:05:40 +01002432 else if (is_not_first)
Christopher Faulet9400a392018-11-23 23:10:39 +01002433 LIST_ADD(&srv->safe_conns[tid], &h1c->conn->list);
2434 else
2435 LIST_ADD(&srv->idle_conns[tid], &h1c->conn->list);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002436 TRACE_DEVEL("connection in idle server list", H1_EV_STRM_END, h1c->conn);
Christopher Faulet9400a392018-11-23 23:10:39 +01002437 }
2438 }
2439 }
2440
Christopher Fauletf1204b82019-07-19 14:51:06 +02002441 release:
Christopher Faulet3ac0f432019-06-28 17:41:42 +02002442 /* 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 +02002443 if ((h1c->flags & (H1C_F_CS_ERROR|H1C_F_CS_SHUTDOWN|H1C_F_UPG_H2C)) ||
2444 (h1c->conn->flags & (CO_FL_ERROR|CO_FL_SOCK_WR_SH)) ||
2445 ((h1c->flags & H1C_F_CS_SHUTW_NOW) && !b_data(&h1c->obuf)) ||
Christopher Faulet6b81df72019-10-01 22:08:43 +02002446 !h1c->conn->owner) {
2447 TRACE_DEVEL("killing dead connection", H1_EV_STRM_END, h1c->conn);
Christopher Faulet73c12072019-04-08 11:23:22 +02002448 h1_release(h1c);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002449 }
Christopher Fauletb8093cf2019-01-03 16:27:28 +01002450 else {
Willy Tarreau3c39a7d2019-06-14 14:42:29 +02002451 tasklet_wakeup(h1c->wait_event.tasklet);
Christopher Fauletb8093cf2019-01-03 16:27:28 +01002452 if (h1c->task) {
2453 h1c->task->expire = TICK_ETERNITY;
2454 if (b_data(&h1c->obuf)) {
Christopher Faulet666a0c42019-01-08 11:12:04 +01002455 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 +01002456 ? h1c->shut_timeout
2457 : h1c->timeout));
2458 task_queue(h1c->task);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002459 TRACE_DEVEL("refreshing connection's timeout", H1_EV_STRM_END, h1c->conn);
Christopher Fauletb8093cf2019-01-03 16:27:28 +01002460 }
2461 }
2462 }
Christopher Faulet6b81df72019-10-01 22:08:43 +02002463 end:
2464 TRACE_LEAVE(H1_EV_STRM_END);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002465}
2466
2467
2468static void h1_shutr(struct conn_stream *cs, enum cs_shr_mode mode)
2469{
2470 struct h1s *h1s = cs->ctx;
Christopher Faulet7f366362019-04-08 10:51:20 +02002471 struct h1c *h1c;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002472
2473 if (!h1s)
2474 return;
Christopher Faulet7f366362019-04-08 10:51:20 +02002475 h1c = h1s->h1c;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002476
Christopher Faulet6b81df72019-10-01 22:08:43 +02002477 TRACE_ENTER(H1_EV_STRM_SHUT, h1c->conn, h1s);
2478
2479 if (cs->flags & CS_FL_KILL_CONN) {
2480 TRACE_STATE("stream wants to kill the connection", H1_EV_STRM_SHUT, h1c->conn, h1s);
2481 goto do_shutr;
2482 }
2483 if (h1c->conn->flags & (CO_FL_ERROR | CO_FL_SOCK_RD_SH | CO_FL_SOCK_WR_SH)) {
2484 TRACE_STATE("shutdown on connection (error|rd_sh|wr_sh)", H1_EV_STRM_SHUT, h1c->conn, h1s);
Christopher Faulet7f366362019-04-08 10:51:20 +02002485 goto do_shutr;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002486 }
Christopher Faulet7f366362019-04-08 10:51:20 +02002487
Christopher Faulet6b81df72019-10-01 22:08:43 +02002488 if ((h1c->flags & H1C_F_UPG_H2C) || (h1s->flags & H1S_F_WANT_KAL)) {
2489 TRACE_STATE("keep connection alive (upg_h2c|want_kal)", H1_EV_STRM_SHUT, h1c->conn, h1s);
2490 goto end;
2491 }
Christopher Fauletf2824e62018-10-01 12:12:37 +02002492
Christopher Faulet7f366362019-04-08 10:51:20 +02002493 do_shutr:
Christopher Faulet51dbc942018-09-13 09:05:15 +02002494 /* NOTE: Be sure to handle abort (cf. h2_shutr) */
2495 if (cs->flags & CS_FL_SHR)
Christopher Faulet6b81df72019-10-01 22:08:43 +02002496 goto end;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002497 if (conn_xprt_ready(cs->conn) && cs->conn->xprt->shutr)
Olivier Houcharde179d0e2019-03-21 18:27:17 +01002498 cs->conn->xprt->shutr(cs->conn, cs->conn->xprt_ctx,
Christopher Faulet6b81df72019-10-01 22:08:43 +02002499 (mode == CS_SHR_DRAIN));
Christopher Faulet6b81df72019-10-01 22:08:43 +02002500 end:
2501 TRACE_LEAVE(H1_EV_STRM_SHUT, h1c->conn, h1s);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002502}
2503
2504static void h1_shutw(struct conn_stream *cs, enum cs_shw_mode mode)
2505{
2506 struct h1s *h1s = cs->ctx;
2507 struct h1c *h1c;
2508
2509 if (!h1s)
2510 return;
2511 h1c = h1s->h1c;
2512
Christopher Faulet6b81df72019-10-01 22:08:43 +02002513 TRACE_ENTER(H1_EV_STRM_SHUT, h1c->conn, h1s);
2514
2515 if (cs->flags & CS_FL_KILL_CONN) {
2516 TRACE_STATE("stream wants to kill the connection", H1_EV_STRM_SHUT, h1c->conn, h1s);
Christopher Faulet7f366362019-04-08 10:51:20 +02002517 goto do_shutw;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002518 }
2519 if (h1c->conn->flags & (CO_FL_ERROR | CO_FL_SOCK_RD_SH | CO_FL_SOCK_WR_SH)) {
2520 TRACE_STATE("shutdown on connection (error|rd_sh|wr_sh)", H1_EV_STRM_SHUT, h1c->conn, h1s);
2521 goto do_shutw;
2522 }
Olivier Houchardd2e88c72018-12-19 15:55:23 +01002523
Christopher Faulet0ef372a2019-04-08 10:57:20 +02002524 if ((h1c->flags & H1C_F_UPG_H2C) ||
Christopher Faulet6b81df72019-10-01 22:08:43 +02002525 ((h1s->flags & H1S_F_WANT_KAL) && h1s->req.state == H1_MSG_DONE && h1s->res.state == H1_MSG_DONE)) {
2526 TRACE_STATE("keep connection alive (upg_h2c|want_kal)", H1_EV_STRM_SHUT, h1c->conn, h1s);
2527 goto end;
2528 }
Christopher Fauletf2824e62018-10-01 12:12:37 +02002529
Christopher Faulet7f366362019-04-08 10:51:20 +02002530 do_shutw:
Christopher Faulet51dbc942018-09-13 09:05:15 +02002531 h1c->flags |= H1C_F_CS_SHUTW_NOW;
2532 if ((cs->flags & CS_FL_SHW) || b_data(&h1c->obuf))
Christopher Faulet6b81df72019-10-01 22:08:43 +02002533 goto end;
Christopher Faulet666a0c42019-01-08 11:12:04 +01002534 h1_shutw_conn(cs->conn, mode);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002535 end:
2536 TRACE_LEAVE(H1_EV_STRM_SHUT, h1c->conn, h1s);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002537}
2538
Christopher Faulet666a0c42019-01-08 11:12:04 +01002539static void h1_shutw_conn(struct connection *conn, enum cs_shw_mode mode)
Christopher Faulet51dbc942018-09-13 09:05:15 +02002540{
Willy Tarreau3d2ee552018-12-19 14:12:10 +01002541 struct h1c *h1c = conn->ctx;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002542
Christopher Faulet6b81df72019-10-01 22:08:43 +02002543 TRACE_ENTER(H1_EV_STRM_SHUT, conn, h1c->h1s);
Christopher Faulet666a0c42019-01-08 11:12:04 +01002544 conn_xprt_shutw(conn);
2545 conn_sock_shutw(conn, (mode == CS_SHW_NORMAL));
Christopher Faulet7b109f22019-12-05 11:18:31 +01002546 h1c->flags = (h1c->flags & ~H1C_F_CS_SHUTW_NOW) | H1C_F_CS_SHUTDOWN;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002547 TRACE_LEAVE(H1_EV_STRM_SHUT, conn, h1c->h1s);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002548}
2549
Willy Tarreauee1a6fc2020-01-17 07:52:13 +01002550/* Called from the upper layer, to unsubscribe <es> from events <event_type>
2551 * The <es> pointer is not allowed to differ from the one passed to the
2552 * subscribe() call. It always returns zero.
2553 */
2554static int h1_unsubscribe(struct conn_stream *cs, int event_type, struct wait_event *es)
Christopher Faulet51dbc942018-09-13 09:05:15 +02002555{
Christopher Faulet51dbc942018-09-13 09:05:15 +02002556 struct h1s *h1s = cs->ctx;
2557
2558 if (!h1s)
2559 return 0;
2560
Willy Tarreau1b0d4d12020-01-16 11:03:19 +01002561 BUG_ON(event_type & ~(SUB_RETRY_SEND|SUB_RETRY_RECV));
Willy Tarreauee1a6fc2020-01-17 07:52:13 +01002562 BUG_ON(h1s->subs && h1s->subs != es);
Willy Tarreau1b0d4d12020-01-16 11:03:19 +01002563
Willy Tarreauee1a6fc2020-01-17 07:52:13 +01002564 es->events &= ~event_type;
2565 if (!es->events)
Willy Tarreau1b0d4d12020-01-16 11:03:19 +01002566 h1s->subs = NULL;
2567
2568 if (event_type & SUB_RETRY_RECV)
Christopher Faulet6b81df72019-10-01 22:08:43 +02002569 TRACE_DEVEL("unsubscribe(recv)", H1_EV_STRM_RECV, h1s->h1c->conn, h1s);
Willy Tarreau1b0d4d12020-01-16 11:03:19 +01002570
2571 if (event_type & SUB_RETRY_SEND)
Christopher Faulet6b81df72019-10-01 22:08:43 +02002572 TRACE_DEVEL("unsubscribe(send)", H1_EV_STRM_SEND, h1s->h1c->conn, h1s);
Willy Tarreau1b0d4d12020-01-16 11:03:19 +01002573
Christopher Faulet51dbc942018-09-13 09:05:15 +02002574 return 0;
2575}
2576
Willy Tarreauee1a6fc2020-01-17 07:52:13 +01002577/* Called from the upper layer, to subscribe <es> to events <event_type>. The
2578 * event subscriber <es> is not allowed to change from a previous call as long
2579 * as at least one event is still subscribed. The <event_type> must only be a
2580 * combination of SUB_RETRY_RECV and SUB_RETRY_SEND. It always returns 0, unless
2581 * the conn_stream <cs> was already detached, in which case it will return -1.
2582 */
2583static int h1_subscribe(struct conn_stream *cs, int event_type, struct wait_event *es)
Christopher Faulet51dbc942018-09-13 09:05:15 +02002584{
Christopher Faulet51dbc942018-09-13 09:05:15 +02002585 struct h1s *h1s = cs->ctx;
Christopher Faulet51bb1852019-09-04 10:22:34 +02002586 struct h1c *h1c;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002587
2588 if (!h1s)
2589 return -1;
2590
Willy Tarreau1b0d4d12020-01-16 11:03:19 +01002591 BUG_ON(event_type & ~(SUB_RETRY_SEND|SUB_RETRY_RECV));
2592 BUG_ON(h1s->subs && h1s->subs->events & event_type);
Willy Tarreauee1a6fc2020-01-17 07:52:13 +01002593 BUG_ON(h1s->subs && h1s->subs != es);
Willy Tarreau1b0d4d12020-01-16 11:03:19 +01002594
Willy Tarreauee1a6fc2020-01-17 07:52:13 +01002595 es->events |= event_type;
2596 h1s->subs = es;
Willy Tarreau1b0d4d12020-01-16 11:03:19 +01002597
2598 if (event_type & SUB_RETRY_RECV)
Christopher Faulet6b81df72019-10-01 22:08:43 +02002599 TRACE_DEVEL("subscribe(recv)", H1_EV_STRM_RECV, h1s->h1c->conn, h1s);
Willy Tarreau1b0d4d12020-01-16 11:03:19 +01002600
2601
Christopher Faulet6b81df72019-10-01 22:08:43 +02002602 if (event_type & SUB_RETRY_SEND) {
2603 TRACE_DEVEL("subscribe(send)", H1_EV_STRM_SEND, h1s->h1c->conn, h1s);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002604 /*
2605 * If the conn_stream attempt to subscribe, and the
2606 * mux isn't subscribed to the connection, then it
2607 * probably means the connection wasn't established
2608 * yet, so we have to subscribe.
2609 */
2610 h1c = h1s->h1c;
2611 if (!(h1c->wait_event.events & SUB_RETRY_SEND))
2612 h1c->conn->xprt->subscribe(h1c->conn,
2613 h1c->conn->xprt_ctx,
2614 SUB_RETRY_SEND,
2615 &h1c->wait_event);
2616 }
Christopher Faulet6b81df72019-10-01 22:08:43 +02002617 return 0;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002618}
2619
2620/* Called from the upper layer, to receive data */
2621static size_t h1_rcv_buf(struct conn_stream *cs, struct buffer *buf, size_t count, int flags)
2622{
2623 struct h1s *h1s = cs->ctx;
Christopher Faulet539e0292018-11-19 10:40:09 +01002624 struct h1c *h1c = h1s->h1c;
Olivier Houcharddedd3062019-07-26 15:12:38 +02002625 struct h1m *h1m = (!conn_is_back(cs->conn) ? &h1s->req : &h1s->res);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002626 size_t ret = 0;
2627
Christopher Faulet6b81df72019-10-01 22:08:43 +02002628 TRACE_ENTER(H1_EV_STRM_RECV, h1c->conn, h1s,, (size_t[]){count});
Christopher Faulet539e0292018-11-19 10:40:09 +01002629 if (!(h1c->flags & H1C_F_IN_ALLOC))
Christopher Faulet30db3d72019-05-17 15:35:33 +02002630 ret = h1_process_input(h1c, buf, count);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002631 else
2632 TRACE_DEVEL("h1c ibuf not allocated", H1_EV_H1C_RECV|H1_EV_H1C_BLK, h1c->conn);
Christopher Faulet1be55f92018-10-02 15:59:23 +02002633
Christopher Faulete18777b2019-04-16 16:46:36 +02002634 if (flags & CO_RFL_BUF_FLUSH) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02002635 if (h1m->state != H1_MSG_TUNNEL || (h1m->state == H1_MSG_DATA && h1m->curr_len)) {
Christopher Faulete18777b2019-04-16 16:46:36 +02002636 h1s->flags |= H1S_F_BUF_FLUSH;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002637 TRACE_STATE("flush stream's buffer", H1_EV_STRM_RECV, h1c->conn, h1s);
2638 }
Christopher Faulete18777b2019-04-16 16:46:36 +02002639 }
Olivier Houchard02bac852019-08-22 18:34:25 +02002640 else {
Christopher Faulet6b81df72019-10-01 22:08:43 +02002641 if (h1s->flags & H1S_F_SPLICED_DATA) {
2642 h1s->flags &= ~H1S_F_SPLICED_DATA;
2643 TRACE_STATE("disable splicing", H1_EV_STRM_RECV, h1c->conn, h1s);
2644 }
2645 if (h1m->state != H1_MSG_DONE && !(h1c->wait_event.events & SUB_RETRY_RECV))
Willy Tarreau3c39a7d2019-06-14 14:42:29 +02002646 tasklet_wakeup(h1c->wait_event.tasklet);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002647 }
Christopher Faulet6b81df72019-10-01 22:08:43 +02002648 TRACE_LEAVE(H1_EV_STRM_RECV, h1c->conn, h1s,, (size_t[]){ret});
Christopher Faulet51dbc942018-09-13 09:05:15 +02002649 return ret;
2650}
2651
2652
2653/* Called from the upper layer, to send data */
2654static size_t h1_snd_buf(struct conn_stream *cs, struct buffer *buf, size_t count, int flags)
2655{
2656 struct h1s *h1s = cs->ctx;
2657 struct h1c *h1c;
Christopher Faulet5d37dac2018-11-22 10:58:42 +01002658 size_t total = 0;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002659
2660 if (!h1s)
Christopher Faulet5d37dac2018-11-22 10:58:42 +01002661 return 0;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002662 h1c = h1s->h1c;
Olivier Houchard305d5ab2019-07-24 18:07:06 +02002663
Christopher Faulet6b81df72019-10-01 22:08:43 +02002664 TRACE_ENTER(H1_EV_STRM_SEND, h1c->conn, h1s,, (size_t[]){count});
2665
Olivier Houchard305d5ab2019-07-24 18:07:06 +02002666 /* If we're not connected yet, or we're waiting for a handshake, stop
2667 * now, as we don't want to remove everything from the channel buffer
2668 * before we're sure we can send it.
2669 */
2670 if (!(h1c->conn->flags & CO_FL_CONNECTED) ||
Christopher Faulet6b81df72019-10-01 22:08:43 +02002671 (h1c->conn->flags & CO_FL_HANDSHAKE)) {
2672 TRACE_LEAVE(H1_EV_STRM_SEND, h1c->conn, h1s);
Christopher Faulet3b88b8d2018-10-26 17:36:03 +02002673 return 0;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002674 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02002675
Christopher Faulet46230362019-10-17 16:04:20 +02002676 /* Inherit some flags from the upper layer */
2677 h1c->flags &= ~(H1C_F_CO_MSG_MORE|H1C_F_CO_STREAMER);
2678 if (flags & CO_SFL_MSG_MORE)
2679 h1c->flags |= H1C_F_CO_MSG_MORE;
2680 if (flags & CO_SFL_STREAMER)
2681 h1c->flags |= H1C_F_CO_STREAMER;
2682
Christopher Fauletc31872f2019-06-04 22:09:36 +02002683 while (count) {
Christopher Faulet5d37dac2018-11-22 10:58:42 +01002684 size_t ret = 0;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002685
Christopher Faulet5d37dac2018-11-22 10:58:42 +01002686 if (!(h1c->flags & (H1C_F_OUT_FULL|H1C_F_OUT_ALLOC)))
2687 ret = h1_process_output(h1c, buf, count);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002688 else
2689 TRACE_DEVEL("h1c obuf not allocated", H1_EV_STRM_SEND|H1_EV_H1S_BLK, h1c->conn, h1s);
Christopher Faulet5d37dac2018-11-22 10:58:42 +01002690 if (!ret)
2691 break;
2692 total += ret;
Christopher Fauletc31872f2019-06-04 22:09:36 +02002693 count -= ret;
Olivier Houchard68787ef2020-01-15 19:13:32 +01002694 if ((h1c->wait_event.events & SUB_RETRY_SEND) || !h1_send(h1c))
Christopher Faulet5d37dac2018-11-22 10:58:42 +01002695 break;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002696 }
Christopher Fauletf96c3222018-11-20 18:38:01 +01002697
Christopher Faulet6b81df72019-10-01 22:08:43 +02002698 TRACE_LEAVE(H1_EV_STRM_SEND, h1c->conn, h1s,, (size_t[]){total});
Christopher Faulet5d37dac2018-11-22 10:58:42 +01002699 return total;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002700}
2701
Willy Tarreaue5733232019-05-22 19:24:06 +02002702#if defined(USE_LINUX_SPLICE)
Christopher Faulet1be55f92018-10-02 15:59:23 +02002703/* Send and get, using splicing */
2704static int h1_rcv_pipe(struct conn_stream *cs, struct pipe *pipe, unsigned int count)
2705{
2706 struct h1s *h1s = cs->ctx;
2707 struct h1m *h1m = (!conn_is_back(cs->conn) ? &h1s->req : &h1s->res);
2708 int ret = 0;
2709
Christopher Faulet6b81df72019-10-01 22:08:43 +02002710 TRACE_ENTER(H1_EV_STRM_RECV, cs->conn, h1s,, (size_t[]){count});
2711
Christopher Faulet9fa40c42019-11-05 16:24:27 +01002712 if ((h1m->flags & H1_MF_CHNK) || (h1m->state != H1_MSG_DATA && h1m->state != H1_MSG_TUNNEL)) {
Christopher Faulete18777b2019-04-16 16:46:36 +02002713 h1s->flags &= ~(H1S_F_BUF_FLUSH|H1S_F_SPLICED_DATA);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002714 TRACE_STATE("disable splicing on !(msg_data|msg_tunnel)", H1_EV_STRM_RECV, cs->conn, h1s);
2715 if (!(h1s->h1c->wait_event.events & SUB_RETRY_RECV)) {
2716 TRACE_STATE("restart receiving data, subscribing", H1_EV_STRM_RECV, cs->conn, h1s);
Christopher Faulet1146f972019-05-29 14:35:24 +02002717 cs->conn->xprt->subscribe(cs->conn, cs->conn->xprt_ctx, SUB_RETRY_RECV, &h1s->h1c->wait_event);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002718 }
Christopher Faulete18777b2019-04-16 16:46:36 +02002719 goto end;
2720 }
2721
Willy Tarreaufbdf90a2019-06-03 13:42:54 +02002722 if (h1s_data_pending(h1s)) {
Christopher Fauletd44ad5b2018-11-19 21:52:12 +01002723 h1s->flags |= H1S_F_BUF_FLUSH;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002724 TRACE_STATE("flush input buffer before splicing", H1_EV_STRM_RECV, cs->conn, h1s);
Christopher Faulet1be55f92018-10-02 15:59:23 +02002725 goto end;
Christopher Fauletd44ad5b2018-11-19 21:52:12 +01002726 }
2727
2728 h1s->flags &= ~H1S_F_BUF_FLUSH;
2729 h1s->flags |= H1S_F_SPLICED_DATA;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002730 TRACE_STATE("enable splicing", H1_EV_STRM_RECV, cs->conn, h1s);
Christopher Faulet1be55f92018-10-02 15:59:23 +02002731 if (h1m->state == H1_MSG_DATA && count > h1m->curr_len)
2732 count = h1m->curr_len;
Olivier Houcharde179d0e2019-03-21 18:27:17 +01002733 ret = cs->conn->xprt->rcv_pipe(cs->conn, cs->conn->xprt_ctx, pipe, count);
Christopher Faulet1146f972019-05-29 14:35:24 +02002734 if (h1m->state == H1_MSG_DATA && ret >= 0) {
Christopher Faulet1be55f92018-10-02 15:59:23 +02002735 h1m->curr_len -= ret;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002736 if (!h1m->curr_len) {
Christopher Faulete18777b2019-04-16 16:46:36 +02002737 h1s->flags &= ~(H1S_F_BUF_FLUSH|H1S_F_SPLICED_DATA);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002738 TRACE_STATE("disable splicing on !curr_len", H1_EV_STRM_RECV, cs->conn, h1s);
2739 }
Christopher Faulete18777b2019-04-16 16:46:36 +02002740 }
2741
Christopher Faulet1be55f92018-10-02 15:59:23 +02002742 end:
Christopher Faulet038ad812019-04-17 11:03:22 +02002743 if (conn_xprt_read0_pending(cs->conn)) {
Willy Tarreauc493c9c2019-06-03 14:18:22 +02002744 h1s->flags |= H1S_F_REOS;
Christopher Fauletf3158e92019-11-15 11:14:23 +01002745 h1s->flags &= ~(H1S_F_BUF_FLUSH|H1S_F_SPLICED_DATA);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002746 TRACE_STATE("read0 on connection", H1_EV_STRM_RECV, cs->conn, h1s);
Christopher Faulet038ad812019-04-17 11:03:22 +02002747 }
Christopher Faulet6b81df72019-10-01 22:08:43 +02002748
Willy Tarreau17ccd1a2020-01-17 16:19:34 +01002749 if (h1m->state != H1_MSG_DATA || !h1m->curr_len)
2750 cs->flags &= ~CS_FL_MAY_SPLICE;
2751
Christopher Faulet6b81df72019-10-01 22:08:43 +02002752 TRACE_LEAVE(H1_EV_STRM_RECV, cs->conn, h1s);
Christopher Faulet1be55f92018-10-02 15:59:23 +02002753 return ret;
Christopher Faulet1be55f92018-10-02 15:59:23 +02002754}
2755
2756static int h1_snd_pipe(struct conn_stream *cs, struct pipe *pipe)
2757{
2758 struct h1s *h1s = cs->ctx;
Christopher Faulet1be55f92018-10-02 15:59:23 +02002759 int ret = 0;
2760
Christopher Faulet6b81df72019-10-01 22:08:43 +02002761 TRACE_ENTER(H1_EV_STRM_SEND, cs->conn, h1s,, (size_t[]){pipe->data});
2762
Christopher Faulet1be55f92018-10-02 15:59:23 +02002763 if (b_data(&h1s->h1c->obuf))
2764 goto end;
2765
Olivier Houcharde179d0e2019-03-21 18:27:17 +01002766 ret = cs->conn->xprt->snd_pipe(cs->conn, cs->conn->xprt_ctx, pipe);
Christopher Faulet1be55f92018-10-02 15:59:23 +02002767 end:
Christopher Fauletd44ad5b2018-11-19 21:52:12 +01002768 if (pipe->data) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02002769 if (!(h1s->h1c->wait_event.events & SUB_RETRY_SEND)) {
2770 TRACE_STATE("more data to send, subscribing", H1_EV_STRM_SEND, cs->conn, h1s);
Olivier Houcharde179d0e2019-03-21 18:27:17 +01002771 cs->conn->xprt->subscribe(cs->conn, cs->conn->xprt_ctx, SUB_RETRY_SEND, &h1s->h1c->wait_event);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002772 }
Christopher Fauletd44ad5b2018-11-19 21:52:12 +01002773 }
Christopher Faulet6b81df72019-10-01 22:08:43 +02002774
2775 TRACE_LEAVE(H1_EV_STRM_SEND, cs->conn, h1s);
Christopher Faulet1be55f92018-10-02 15:59:23 +02002776 return ret;
2777}
2778#endif
2779
Olivier Houchard9b8e11e2019-10-25 16:19:26 +02002780static int h1_ctl(struct connection *conn, enum mux_ctl_type mux_ctl, void *output)
2781{
2782 int ret = 0;
2783 switch (mux_ctl) {
2784 case MUX_STATUS:
2785 if (conn->flags & CO_FL_CONNECTED)
2786 ret |= MUX_STATUS_READY;
2787 return ret;
2788 default:
2789 return -1;
2790 }
2791}
2792
Olivier Houcharda8f6b432018-12-21 15:20:29 +01002793/* for debugging with CLI's "show fd" command */
2794static void h1_show_fd(struct buffer *msg, struct connection *conn)
2795{
2796 struct h1c *h1c = conn->ctx;
2797 struct h1s *h1s = h1c->h1s;
2798
Christopher Fauletf376a312019-01-04 15:16:06 +01002799 chunk_appendf(msg, " h1c.flg=0x%x .sub=%d .ibuf=%u@%p+%u/%u .obuf=%u@%p+%u/%u",
2800 h1c->flags, h1c->wait_event.events,
Olivier Houcharda8f6b432018-12-21 15:20:29 +01002801 (unsigned int)b_data(&h1c->ibuf), b_orig(&h1c->ibuf),
2802 (unsigned int)b_head_ofs(&h1c->ibuf), (unsigned int)b_size(&h1c->ibuf),
2803 (unsigned int)b_data(&h1c->obuf), b_orig(&h1c->obuf),
2804 (unsigned int)b_head_ofs(&h1c->obuf), (unsigned int)b_size(&h1c->obuf));
2805
2806 if (h1s) {
2807 char *method;
2808
2809 if (h1s->meth < HTTP_METH_OTHER)
2810 method = http_known_methods[h1s->meth].ptr;
2811 else
2812 method = "UNKNOWN";
2813 chunk_appendf(msg, " h1s=%p h1s.flg=0x%x .req.state=%s .res.state=%s"
2814 " .meth=%s status=%d",
2815 h1s, h1s->flags,
2816 h1m_state_str(h1s->req.state),
2817 h1m_state_str(h1s->res.state), method, h1s->status);
2818 if (h1s->cs)
2819 chunk_appendf(msg, " .cs.flg=0x%08x .cs.data=%p",
2820 h1s->cs->flags, h1s->cs->data);
2821 }
Christopher Faulet98fbe952019-07-22 16:18:24 +02002822}
2823
2824
2825/* Add an entry in the headers map. Returns -1 on error and 0 on success. */
2826static int add_hdr_case_adjust(const char *from, const char *to, char **err)
2827{
2828 struct h1_hdr_entry *entry;
2829
2830 /* Be sure there is a non-empty <to> */
2831 if (!strlen(to)) {
2832 memprintf(err, "expect <to>");
2833 return -1;
2834 }
2835
2836 /* Be sure only the case differs between <from> and <to> */
2837 if (strcasecmp(from, to)) {
2838 memprintf(err, "<from> and <to> must not differ execpt the case");
2839 return -1;
2840 }
2841
2842 /* Be sure <from> does not already existsin the tree */
2843 if (ebis_lookup(&hdrs_map.map, from)) {
2844 memprintf(err, "duplicate entry '%s'", from);
2845 return -1;
2846 }
2847
2848 /* Create the entry and insert it in the tree */
2849 entry = malloc(sizeof(*entry));
2850 if (!entry) {
2851 memprintf(err, "out of memory");
2852 return -1;
2853 }
2854
2855 entry->node.key = strdup(from);
2856 entry->name.ptr = strdup(to);
2857 entry->name.len = strlen(to);
2858 if (!entry->node.key || !entry->name.ptr) {
2859 free(entry->node.key);
2860 free(entry->name.ptr);
2861 free(entry);
2862 memprintf(err, "out of memory");
2863 return -1;
2864 }
2865 ebis_insert(&hdrs_map.map, &entry->node);
2866 return 0;
2867}
2868
2869static void h1_hdeaders_case_adjust_deinit()
2870{
2871 struct ebpt_node *node, *next;
2872 struct h1_hdr_entry *entry;
2873
2874 node = ebpt_first(&hdrs_map.map);
2875 while (node) {
2876 next = ebpt_next(node);
2877 ebpt_delete(node);
2878 entry = container_of(node, struct h1_hdr_entry, node);
2879 free(entry->node.key);
2880 free(entry->name.ptr);
2881 free(entry);
2882 node = next;
2883 }
2884 free(hdrs_map.name);
Olivier Houcharda8f6b432018-12-21 15:20:29 +01002885}
2886
Christopher Faulet98fbe952019-07-22 16:18:24 +02002887static int cfg_h1_headers_case_adjust_postparser()
2888{
2889 FILE *file = NULL;
2890 char *c, *key_beg, *key_end, *value_beg, *value_end;
2891 char *err;
2892 int rc, line = 0, err_code = 0;
2893
2894 if (!hdrs_map.name)
2895 goto end;
2896
2897 file = fopen(hdrs_map.name, "r");
2898 if (!file) {
2899 ha_alert("config : h1-outgoing-headers-case-adjust-file '%s': failed to open file.\n",
2900 hdrs_map.name);
2901 err_code |= ERR_ALERT | ERR_FATAL;
2902 goto end;
2903 }
2904
2905 /* now parse all lines. The file may contain only two header name per
2906 * line, separated by spaces. All heading and trailing spaces will be
2907 * ignored. Lines starting with a # are ignored.
2908 */
2909 while (fgets(trash.area, trash.size, file) != NULL) {
2910 line++;
2911 c = trash.area;
2912
2913 /* strip leading spaces and tabs */
2914 while (*c == ' ' || *c == '\t')
2915 c++;
2916
2917 /* ignore emptu lines, or lines beginning with a dash */
2918 if (*c == '#' || *c == '\0' || *c == '\r' || *c == '\n')
2919 continue;
2920
2921 /* look for the end of the key */
2922 key_beg = c;
2923 while (*c != '\0' && *c != ' ' && *c != '\t' && *c != '\n' && *c != '\r')
2924 c++;
2925 key_end = c;
2926
2927 /* strip middle spaces and tabs */
2928 while (*c == ' ' || *c == '\t')
2929 c++;
2930
2931 /* look for the end of the value, it is the end of the line */
2932 value_beg = c;
2933 while (*c && *c != '\n' && *c != '\r')
2934 c++;
2935 value_end = c;
2936
2937 /* trim possibly trailing spaces and tabs */
2938 while (value_end > value_beg && (value_end[-1] == ' ' || value_end[-1] == '\t'))
2939 value_end--;
2940
2941 /* set final \0 and check entries */
2942 *key_end = '\0';
2943 *value_end = '\0';
2944
2945 err = NULL;
2946 rc = add_hdr_case_adjust(key_beg, value_beg, &err);
2947 if (rc < 0) {
Christopher Faulet98fbe952019-07-22 16:18:24 +02002948 ha_alert("config : h1-outgoing-headers-case-adjust-file '%s' : %s at line %d.\n",
2949 hdrs_map.name, err, line);
2950 err_code |= ERR_ALERT | ERR_FATAL;
Christopher Fauletcac5c092019-07-30 16:51:42 +02002951 free(err);
Christopher Faulet98fbe952019-07-22 16:18:24 +02002952 goto end;
2953 }
2954 if (rc > 0) {
Christopher Faulet98fbe952019-07-22 16:18:24 +02002955 ha_warning("config : h1-outgoing-headers-case-adjust-file '%s' : %s at line %d.\n",
2956 hdrs_map.name, err, line);
2957 err_code |= ERR_WARN;
Christopher Fauletcac5c092019-07-30 16:51:42 +02002958 free(err);
Christopher Faulet98fbe952019-07-22 16:18:24 +02002959 }
2960 }
2961
2962 end:
2963 if (file)
2964 fclose(file);
2965 hap_register_post_deinit(h1_hdeaders_case_adjust_deinit);
2966 return err_code;
2967}
2968
2969
2970/* config parser for global "h1-outgoing-header-case-adjust" */
2971static int cfg_parse_h1_header_case_adjust(char **args, int section_type, struct proxy *curpx,
2972 struct proxy *defpx, const char *file, int line,
2973 char **err)
2974{
2975 if (too_many_args(2, args, err, NULL))
2976 return -1;
2977 if (!*(args[1]) || !*(args[2])) {
2978 memprintf(err, "'%s' expects <from> and <to> as argument.", args[0]);
2979 return -1;
2980 }
2981 return add_hdr_case_adjust(args[1], args[2], err);
2982}
2983
2984/* config parser for global "h1-outgoing-headers-case-adjust-file" */
2985static int cfg_parse_h1_headers_case_adjust_file(char **args, int section_type, struct proxy *curpx,
2986 struct proxy *defpx, const char *file, int line,
2987 char **err)
2988{
2989 if (too_many_args(1, args, err, NULL))
2990 return -1;
2991 if (!*(args[1])) {
2992 memprintf(err, "'%s' expects <file> as argument.", args[0]);
2993 return -1;
2994 }
2995 free(hdrs_map.name);
2996 hdrs_map.name = strdup(args[1]);
2997 return 0;
2998}
2999
3000
3001/* config keyword parsers */
3002static struct cfg_kw_list cfg_kws = {{ }, {
3003 { CFG_GLOBAL, "h1-case-adjust", cfg_parse_h1_header_case_adjust },
3004 { CFG_GLOBAL, "h1-case-adjust-file", cfg_parse_h1_headers_case_adjust_file },
3005 { 0, NULL, NULL },
3006 }
3007};
3008
3009INITCALL1(STG_REGISTER, cfg_register_keywords, &cfg_kws);
3010REGISTER_CONFIG_POSTPARSER("h1-headers-map", cfg_h1_headers_case_adjust_postparser);
3011
3012
Christopher Faulet51dbc942018-09-13 09:05:15 +02003013/****************************************/
3014/* MUX initialization and instanciation */
3015/****************************************/
3016
3017/* The mux operations */
Willy Tarreauf77a1582019-01-10 10:00:08 +01003018static const struct mux_ops mux_h1_ops = {
Christopher Faulet51dbc942018-09-13 09:05:15 +02003019 .init = h1_init,
3020 .wake = h1_wake,
3021 .attach = h1_attach,
3022 .get_first_cs = h1_get_first_cs,
Christopher Fauletfeb11742018-11-29 15:12:34 +01003023 .get_cs_info = h1_get_cs_info,
Christopher Faulet51dbc942018-09-13 09:05:15 +02003024 .detach = h1_detach,
3025 .destroy = h1_destroy,
3026 .avail_streams = h1_avail_streams,
Willy Tarreau00f18a32019-01-26 12:19:01 +01003027 .used_streams = h1_used_streams,
Christopher Faulet51dbc942018-09-13 09:05:15 +02003028 .rcv_buf = h1_rcv_buf,
3029 .snd_buf = h1_snd_buf,
Willy Tarreaue5733232019-05-22 19:24:06 +02003030#if defined(USE_LINUX_SPLICE)
Christopher Faulet1be55f92018-10-02 15:59:23 +02003031 .rcv_pipe = h1_rcv_pipe,
3032 .snd_pipe = h1_snd_pipe,
3033#endif
Christopher Faulet51dbc942018-09-13 09:05:15 +02003034 .subscribe = h1_subscribe,
3035 .unsubscribe = h1_unsubscribe,
3036 .shutr = h1_shutr,
3037 .shutw = h1_shutw,
Olivier Houcharda8f6b432018-12-21 15:20:29 +01003038 .show_fd = h1_show_fd,
Olivier Houchard9a86fcb2018-12-11 16:47:14 +01003039 .reset = h1_reset,
Olivier Houchard9b8e11e2019-10-25 16:19:26 +02003040 .ctl = h1_ctl,
Christopher Faulet9f38f5a2019-04-03 09:53:32 +02003041 .flags = MX_FL_HTX,
Willy Tarreau0a7a4fb2019-05-22 11:36:54 +02003042 .name = "H1",
Christopher Faulet51dbc942018-09-13 09:05:15 +02003043};
3044
3045
3046/* this mux registers default HTX proto */
3047static struct mux_proto_list mux_proto_htx =
Christopher Fauletc985f6c2019-07-15 11:42:52 +02003048{ .token = IST(""), .mode = PROTO_MODE_HTTP, .side = PROTO_SIDE_BOTH, .mux = &mux_h1_ops };
Christopher Faulet51dbc942018-09-13 09:05:15 +02003049
Willy Tarreau0108d902018-11-25 19:14:37 +01003050INITCALL1(STG_REGISTER, register_mux_proto, &mux_proto_htx);
3051
Christopher Faulet51dbc942018-09-13 09:05:15 +02003052/*
3053 * Local variables:
3054 * c-indent-level: 8
3055 * c-basic-offset: 8
3056 * End:
3057 */