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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 Fauletcb55f482018-12-10 11:56:47 +010047#define H1C_F_IN_BUSY 0x00000040
Christopher Faulet539e0292018-11-19 10:40:09 +010048/* 0x00000040 - 0x00000800 unused */
Christopher Faulet51dbc942018-09-13 09:05:15 +020049
50#define H1C_F_CS_ERROR 0x00001000 /* connection must be closed ASAP because an error occurred */
51#define H1C_F_CS_SHUTW_NOW 0x00002000 /* connection must be shut down for writes ASAP */
Christopher Faulet666a0c42019-01-08 11:12:04 +010052#define H1C_F_CS_SHUTDOWN 0x00004000 /* connection is shut down for read and writes */
Christopher Faulet51dbc942018-09-13 09:05:15 +020053
Christopher Fauletf2824e62018-10-01 12:12:37 +020054#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 +020055#define H1C_F_UPG_H2C 0x00020000 /* set if an upgrade to h2 should be done */
Christopher Faulet129817b2018-09-20 16:14:40 +020056
Christopher Faulet51dbc942018-09-13 09:05:15 +020057/*
58 * H1 Stream flags (32 bits)
59 */
Christopher Faulet129817b2018-09-20 16:14:40 +020060#define H1S_F_NONE 0x00000000
61#define H1S_F_ERROR 0x00000001 /* An error occurred on the H1 stream */
Christopher Fauletf2824e62018-10-01 12:12:37 +020062#define H1S_F_REQ_ERROR 0x00000002 /* An error occurred during the request parsing/xfer */
63#define H1S_F_RES_ERROR 0x00000004 /* An error occurred during the response parsing/xfer */
Willy Tarreauc493c9c2019-06-03 14:18:22 +020064#define H1S_F_REOS 0x00000008 /* End of input stream seen even if not delivered yet */
Christopher Fauletf2824e62018-10-01 12:12:37 +020065#define H1S_F_WANT_KAL 0x00000010
66#define H1S_F_WANT_TUN 0x00000020
67#define H1S_F_WANT_CLO 0x00000040
68#define H1S_F_WANT_MSK 0x00000070
69#define H1S_F_NOT_FIRST 0x00000080 /* The H1 stream is not the first one */
Christopher Faulet539e0292018-11-19 10:40:09 +010070#define H1S_F_BUF_FLUSH 0x00000100 /* Flush input buffer and don't read more data */
Christopher Fauletd44ad5b2018-11-19 21:52:12 +010071#define H1S_F_SPLICED_DATA 0x00000200 /* Set when the kernel splicing is in used */
Willy Tarreau34d23482019-01-03 17:46:56 +010072#define H1S_F_HAVE_I_TLR 0x00000800 /* Set during input process to know the trailers were processed */
Willy Tarreau0bb5a5c2019-08-23 09:29:29 +020073#define H1S_F_APPEND_EOM 0x00001000 /* Send EOM to the HTX buffer */
Christopher Faulet72ba6cd2019-09-24 16:20:05 +020074/* 0x00002000 .. 0x00001000 unused */
75#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 +020076#define H1S_F_HAVE_O_CONN 0x00004000 /* Set during output process to know connection mode was processed */
Christopher Faulet51dbc942018-09-13 09:05:15 +020077
78/* H1 connection descriptor */
Christopher Faulet51dbc942018-09-13 09:05:15 +020079struct h1c {
80 struct connection *conn;
81 struct proxy *px;
82 uint32_t flags; /* Connection flags: H1C_F_* */
83
84 struct buffer ibuf; /* Input buffer to store data before parsing */
85 struct buffer obuf; /* Output buffer to store data after reformatting */
86
87 struct buffer_wait buf_wait; /* Wait list for buffer allocation */
88 struct wait_event wait_event; /* To be used if we're waiting for I/Os */
89
90 struct h1s *h1s; /* H1 stream descriptor */
Christopher Fauletb8093cf2019-01-03 16:27:28 +010091 struct task *task; /* timeout management task */
92 int timeout; /* idle timeout duration in ticks */
93 int shut_timeout; /* idle timeout duration in ticks after stream shutdown */
Christopher Faulet51dbc942018-09-13 09:05:15 +020094};
95
96/* H1 stream descriptor */
97struct h1s {
98 struct h1c *h1c;
99 struct conn_stream *cs;
Christopher Fauletfeb11742018-11-29 15:12:34 +0100100 struct cs_info csinfo; /* CS info, only used for client connections */
101 uint32_t flags; /* Connection flags: H1S_F_* */
Christopher Faulet51dbc942018-09-13 09:05:15 +0200102
Christopher Faulet51dbc942018-09-13 09:05:15 +0200103 struct wait_event *recv_wait; /* Address of the wait_event the conn_stream associated is waiting on */
104 struct wait_event *send_wait; /* Address of the wait_event the conn_stream associated is waiting on */
Christopher Faulet129817b2018-09-20 16:14:40 +0200105
Olivier Houchardf502aca2018-12-14 19:42:40 +0100106 struct session *sess; /* Associated session */
Christopher Faulet129817b2018-09-20 16:14:40 +0200107 struct h1m req;
108 struct h1m res;
109
110 enum http_meth_t meth; /* HTTP resquest method */
111 uint16_t status; /* HTTP response status */
Christopher Faulet51dbc942018-09-13 09:05:15 +0200112};
113
Christopher Faulet98fbe952019-07-22 16:18:24 +0200114/* Map of headers used to convert outgoing headers */
115struct h1_hdrs_map {
116 char *name;
117 struct eb_root map;
118};
119
120/* An entry in a headers map */
121struct h1_hdr_entry {
122 struct ist name;
123 struct ebpt_node node;
124};
125
126/* Declare the headers map */
127static struct h1_hdrs_map hdrs_map = { .name = NULL, .map = EB_ROOT };
128
129
Christopher Faulet6b81df72019-10-01 22:08:43 +0200130/* trace source and events */
131static void h1_trace(enum trace_level level, uint64_t mask,
132 const struct trace_source *src,
133 const struct ist where, const struct ist func,
134 const void *a1, const void *a2, const void *a3, const void *a4);
135
136/* The event representation is split like this :
137 * h1c - internal H1 connection
138 * h1s - internal H1 stream
139 * strm - application layer
140 * rx - data receipt
141 * tx - data transmission
142 *
143 */
144static const struct trace_event h1_trace_events[] = {
145#define H1_EV_H1C_NEW (1ULL << 0)
146 { .mask = H1_EV_H1C_NEW, .name = "h1c_new", .desc = "new H1 connection" },
147#define H1_EV_H1C_RECV (1ULL << 1)
148 { .mask = H1_EV_H1C_RECV, .name = "h1c_recv", .desc = "Rx on H1 connection" },
149#define H1_EV_H1C_SEND (1ULL << 2)
150 { .mask = H1_EV_H1C_SEND, .name = "h1c_send", .desc = "Tx on H1 connection" },
151#define H1_EV_H1C_BLK (1ULL << 3)
152 { .mask = H1_EV_H1C_BLK, .name = "h1c_blk", .desc = "H1 connection blocked" },
153#define H1_EV_H1C_WAKE (1ULL << 4)
154 { .mask = H1_EV_H1C_WAKE, .name = "h1c_wake", .desc = "H1 connection woken up" },
155#define H1_EV_H1C_END (1ULL << 5)
156 { .mask = H1_EV_H1C_END, .name = "h1c_end", .desc = "H1 connection terminated" },
157#define H1_EV_H1C_ERR (1ULL << 6)
158 { .mask = H1_EV_H1C_ERR, .name = "h1c_err", .desc = "error on H1 connection" },
159
160#define H1_EV_RX_DATA (1ULL << 7)
161 { .mask = H1_EV_RX_DATA, .name = "rx_data", .desc = "receipt of any H1 data" },
162#define H1_EV_RX_EOI (1ULL << 8)
163 { .mask = H1_EV_RX_EOI, .name = "rx_eoi", .desc = "receipt of end of H1 input" },
164#define H1_EV_RX_HDRS (1ULL << 9)
165 { .mask = H1_EV_RX_HDRS, .name = "rx_headers", .desc = "receipt of H1 headers" },
166#define H1_EV_RX_BODY (1ULL << 10)
167 { .mask = H1_EV_RX_BODY, .name = "rx_body", .desc = "receipt of H1 body" },
168#define H1_EV_RX_TLRS (1ULL << 11)
169 { .mask = H1_EV_RX_TLRS, .name = "rx_trailerus", .desc = "receipt of H1 trailers" },
170
171#define H1_EV_TX_DATA (1ULL << 12)
172 { .mask = H1_EV_TX_DATA, .name = "tx_data", .desc = "transmission of any H1 data" },
173#define H1_EV_TX_EOI (1ULL << 13)
174 { .mask = H1_EV_TX_EOI, .name = "tx_eoi", .desc = "transmission of end of H1 input" },
175#define H1_EV_TX_HDRS (1ULL << 14)
176 { .mask = H1_EV_TX_HDRS, .name = "tx_headers", .desc = "transmission of all headers" },
177#define H1_EV_TX_BODY (1ULL << 15)
178 { .mask = H1_EV_TX_BODY, .name = "tx_body", .desc = "transmission of H1 body" },
179#define H1_EV_TX_TLRS (1ULL << 16)
180 { .mask = H1_EV_TX_TLRS, .name = "tx_trailerus", .desc = "transmission of H1 trailers" },
181
182#define H1_EV_H1S_NEW (1ULL << 17)
183 { .mask = H1_EV_H1S_NEW, .name = "h1s_new", .desc = "new H1 stream" },
184#define H1_EV_H1S_BLK (1ULL << 18)
185 { .mask = H1_EV_H1S_BLK, .name = "h1s_blk", .desc = "H1 stream blocked" },
186#define H1_EV_H1S_END (1ULL << 19)
187 { .mask = H1_EV_H1S_END, .name = "h1s_end", .desc = "H1 stream terminated" },
188#define H1_EV_H1S_ERR (1ULL << 20)
189 { .mask = H1_EV_H1S_ERR, .name = "h1s_err", .desc = "error on H1 stream" },
190
191#define H1_EV_STRM_NEW (1ULL << 21)
192 { .mask = H1_EV_STRM_NEW, .name = "strm_new", .desc = "app-layer stream creation" },
193#define H1_EV_STRM_RECV (1ULL << 22)
194 { .mask = H1_EV_STRM_RECV, .name = "strm_recv", .desc = "receiving data for stream" },
195#define H1_EV_STRM_SEND (1ULL << 23)
196 { .mask = H1_EV_STRM_SEND, .name = "strm_send", .desc = "sending data for stream" },
197#define H1_EV_STRM_WAKE (1ULL << 24)
198 { .mask = H1_EV_STRM_WAKE, .name = "strm_wake", .desc = "stream woken up" },
199#define H1_EV_STRM_SHUT (1ULL << 25)
200 { .mask = H1_EV_STRM_SHUT, .name = "strm_shut", .desc = "stream shutdown" },
201#define H1_EV_STRM_END (1ULL << 26)
202 { .mask = H1_EV_STRM_END, .name = "strm_end", .desc = "detaching app-layer stream" },
203#define H1_EV_STRM_ERR (1ULL << 27)
204 { .mask = H1_EV_STRM_ERR, .name = "strm_err", .desc = "stream error" },
205
206 { }
207};
208
209static const struct name_desc h1_trace_lockon_args[4] = {
210 /* arg1 */ { /* already used by the connection */ },
211 /* arg2 */ { .name="h1s", .desc="H1 stream" },
212 /* arg3 */ { },
213 /* arg4 */ { }
214};
215
216static const struct name_desc h1_trace_decoding[] = {
217#define H1_VERB_CLEAN 1
218 { .name="clean", .desc="only user-friendly stuff, generally suitable for level \"user\"" },
219#define H1_VERB_MINIMAL 2
220 { .name="minimal", .desc="report only h1c/h1s state and flags, no real decoding" },
221#define H1_VERB_SIMPLE 3
222 { .name="simple", .desc="add request/response status line or htx info when available" },
223#define H1_VERB_ADVANCED 4
224 { .name="advanced", .desc="add header fields or frame decoding when available" },
225#define H1_VERB_COMPLETE 5
226 { .name="complete", .desc="add full data dump when available" },
227 { /* end */ }
228};
229
230static struct trace_source trace_h1 = {
231 .name = IST("h1"),
232 .desc = "HTTP/1 multiplexer",
233 .arg_def = TRC_ARG1_CONN, // TRACE()'s first argument is always a connection
234 .default_cb = h1_trace,
235 .known_events = h1_trace_events,
236 .lockon_args = h1_trace_lockon_args,
237 .decoding = h1_trace_decoding,
238 .report_events = ~0, // report everything by default
239};
240
241#define TRACE_SOURCE &trace_h1
242INITCALL1(STG_REGISTER, trace_register_source, TRACE_SOURCE);
243
Christopher Faulet51dbc942018-09-13 09:05:15 +0200244/* the h1c and h1s pools */
Willy Tarreau8ceae722018-11-26 11:58:30 +0100245DECLARE_STATIC_POOL(pool_head_h1c, "h1c", sizeof(struct h1c));
246DECLARE_STATIC_POOL(pool_head_h1s, "h1s", sizeof(struct h1s));
Christopher Faulet51dbc942018-09-13 09:05:15 +0200247
Christopher Faulet51dbc942018-09-13 09:05:15 +0200248static int h1_recv(struct h1c *h1c);
249static int h1_send(struct h1c *h1c);
250static int h1_process(struct h1c *h1c);
251static struct task *h1_io_cb(struct task *t, void *ctx, unsigned short state);
Christopher Faulet666a0c42019-01-08 11:12:04 +0100252static void h1_shutw_conn(struct connection *conn, enum cs_shw_mode mode);
Christopher Fauletb8093cf2019-01-03 16:27:28 +0100253static struct task *h1_timeout_task(struct task *t, void *context, unsigned short state);
Christopher Faulet660f6f32019-10-04 10:22:47 +0200254static void h1_wake_stream_for_recv(struct h1s *h1s);
255static void h1_wake_stream_for_send(struct h1s *h1s);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200256
Christopher Faulet6b81df72019-10-01 22:08:43 +0200257/* the H1 traces always expect that arg1, if non-null, is of type connection
258 * (from which we can derive h1c), that arg2, if non-null, is of type h1s, and
259 * that arg3, if non-null, is a htx for rx/tx headers.
260 */
261static void h1_trace(enum trace_level level, uint64_t mask, const struct trace_source *src,
262 const struct ist where, const struct ist func,
263 const void *a1, const void *a2, const void *a3, const void *a4)
264{
265 const struct connection *conn = a1;
266 const struct h1c *h1c = conn ? conn->ctx : NULL;
267 const struct h1s *h1s = a2;
268 const struct htx *htx = a3;
269 const size_t *val = a4;
270
271 if (!h1c)
272 h1c = (h1s ? h1s->h1c : NULL);
273
274 if (!h1c || src->verbosity < H1_VERB_CLEAN)
275 return;
276
277 /* Display frontend/backend info by default */
278 chunk_appendf(&trace_buf, " : [%c]", (conn_is_back(h1c->conn) ? 'B' : 'F'));
279
280 /* Display request and response states if h1s is defined */
281 if (h1s)
282 chunk_appendf(&trace_buf, " [%s, %s]",
283 h1m_state_str(h1s->req.state), h1m_state_str(h1s->res.state));
284
285 if (src->verbosity == H1_VERB_CLEAN)
286 return;
287
288 /* Display the value to the 4th argument (level > STATE) */
289 if (src->level > TRACE_LEVEL_STATE && val)
290 chunk_appendf(&trace_buf, " - VAL=%lu", *val);
291
292 /* Display status-line if possible (verbosity > MINIMAL) */
293 if (src->verbosity > H1_VERB_MINIMAL && htx && htx_nbblks(htx)) {
294 const struct htx_blk *blk = htx_get_head_blk(htx);
295 const struct htx_sl *sl = htx_get_blk_ptr(htx, blk);
296 enum htx_blk_type type = htx_get_blk_type(blk);
297
298 if (type == HTX_BLK_REQ_SL || type == HTX_BLK_RES_SL)
299 chunk_appendf(&trace_buf, " - \"%.*s %.*s %.*s\"",
300 HTX_SL_P1_LEN(sl), HTX_SL_P1_PTR(sl),
301 HTX_SL_P2_LEN(sl), HTX_SL_P2_PTR(sl),
302 HTX_SL_P3_LEN(sl), HTX_SL_P3_PTR(sl));
303 }
304
305 /* Display h1c info and, if defined, h1s info (pointer + flags) */
306 chunk_appendf(&trace_buf, " - h1c=%p(0x%08x)", h1c, h1c->flags);
307 if (h1s)
308 chunk_appendf(&trace_buf, " h1s=%p(0x%08x)", h1s, h1s->flags);
309
310 if (src->verbosity == H1_VERB_MINIMAL)
311 return;
312
313 /* Display input and output buffer info (level > USER & verbosity > SIMPLE) */
314 if (src->level > TRACE_LEVEL_USER) {
315 if (src->verbosity == H1_VERB_COMPLETE ||
316 (src->verbosity == H1_VERB_ADVANCED && (mask & (H1_EV_H1C_RECV|H1_EV_STRM_RECV))))
317 chunk_appendf(&trace_buf, " ibuf=%u@%p+%u/%u",
318 (unsigned int)b_data(&h1c->ibuf), b_orig(&h1c->ibuf),
319 (unsigned int)b_head_ofs(&h1c->ibuf), (unsigned int)b_size(&h1c->ibuf));
320 if (src->verbosity == H1_VERB_COMPLETE ||
321 (src->verbosity == H1_VERB_ADVANCED && (mask & (H1_EV_H1C_SEND|H1_EV_STRM_SEND))))
322 chunk_appendf(&trace_buf, " obuf=%u@%p+%u/%u",
323 (unsigned int)b_data(&h1c->obuf), b_orig(&h1c->obuf),
324 (unsigned int)b_head_ofs(&h1c->obuf), (unsigned int)b_size(&h1c->obuf));
325 }
326
327 /* Display htx info if defined (level > USER) */
328 if (src->level > TRACE_LEVEL_USER && htx) {
329 int full = 0;
330
331 /* Full htx info (level > STATE && verbosity > SIMPLE) */
332 if (src->level > TRACE_LEVEL_STATE) {
333 if (src->verbosity == H1_VERB_COMPLETE)
334 full = 1;
335 else if (src->verbosity == H1_VERB_ADVANCED && (mask & (H1_EV_RX_HDRS|H1_EV_TX_HDRS)))
336 full = 1;
337 }
338
339 chunk_memcat(&trace_buf, "\n\t", 2);
340 htx_dump(&trace_buf, htx, full);
341 }
342}
343
344
Christopher Faulet51dbc942018-09-13 09:05:15 +0200345/*****************************************************/
346/* functions below are for dynamic buffer management */
347/*****************************************************/
348/*
349 * Indicates whether or not the we may call the h1_recv() function to
350 * attempt to receive data into the buffer and/or parse pending data. The
351 * condition is a bit complex due to some API limits for now. The rules are the
352 * following :
353 * - if an error or a shutdown was detected on the connection and the buffer
354 * is empty, we must not attempt to receive
355 * - if the input buffer failed to be allocated, we must not try to receive
356 * and we know there is nothing pending
357 * - if no flag indicates a blocking condition, we may attempt to receive,
358 * regardless of whether the input buffer is full or not, so that only de
359 * receiving part decides whether or not to block. This is needed because
360 * the connection API indeed prevents us from re-enabling receipt that is
361 * already enabled in a polled state, so we must always immediately stop as
362 * soon as the mux can't proceed so as never to hit an end of read with data
363 * pending in the buffers.
364 * - otherwise must may not attempt to receive
365 */
366static inline int h1_recv_allowed(const struct h1c *h1c)
367{
Christopher Faulet6b81df72019-10-01 22:08:43 +0200368 if (b_data(&h1c->ibuf) == 0 && (h1c->flags & (H1C_F_CS_ERROR|H1C_F_CS_SHUTDOWN))) {
369 TRACE_DEVEL("recv not allowed because of (error|shudown) on h1c", H1_EV_H1C_RECV|H1_EV_H1C_BLK, h1c->conn);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200370 return 0;
Christopher Faulet6b81df72019-10-01 22:08:43 +0200371 }
Christopher Faulet51dbc942018-09-13 09:05:15 +0200372
Christopher Faulet6b81df72019-10-01 22:08:43 +0200373 if (h1c->conn->flags & CO_FL_ERROR || conn_xprt_read0_pending(h1c->conn)) {
374 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 +0100375 return 0;
Christopher Faulet6b81df72019-10-01 22:08:43 +0200376 }
Christopher Fauletcf56b992018-12-11 16:12:31 +0100377
Christopher Fauletcb55f482018-12-10 11:56:47 +0100378 if (!(h1c->flags & (H1C_F_IN_ALLOC|H1C_F_IN_FULL|H1C_F_IN_BUSY)))
Christopher Faulet51dbc942018-09-13 09:05:15 +0200379 return 1;
380
Christopher Faulet6b81df72019-10-01 22:08:43 +0200381 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 +0200382 return 0;
383}
384
385/*
386 * Tries to grab a buffer and to re-enables processing on mux <target>. The h1
387 * flags are used to figure what buffer was requested. It returns 1 if the
388 * allocation succeeds, in which case the connection is woken up, or 0 if it's
389 * impossible to wake up and we prefer to be woken up later.
390 */
391static int h1_buf_available(void *target)
392{
393 struct h1c *h1c = target;
394
395 if ((h1c->flags & H1C_F_IN_ALLOC) && b_alloc_margin(&h1c->ibuf, 0)) {
Christopher Faulet6b81df72019-10-01 22:08:43 +0200396 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 +0200397 h1c->flags &= ~H1C_F_IN_ALLOC;
398 if (h1_recv_allowed(h1c))
Willy Tarreau3c39a7d2019-06-14 14:42:29 +0200399 tasklet_wakeup(h1c->wait_event.tasklet);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200400 return 1;
401 }
402
403 if ((h1c->flags & H1C_F_OUT_ALLOC) && b_alloc_margin(&h1c->obuf, 0)) {
Christopher Faulet6b81df72019-10-01 22:08:43 +0200404 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 +0200405 h1c->flags &= ~H1C_F_OUT_ALLOC;
Willy Tarreau3c39a7d2019-06-14 14:42:29 +0200406 tasklet_wakeup(h1c->wait_event.tasklet);
Christopher Faulet660f6f32019-10-04 10:22:47 +0200407 if (h1c->h1s)
408 h1_wake_stream_for_send(h1c->h1s);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200409 return 1;
410 }
411
Christopher Faulet51dbc942018-09-13 09:05:15 +0200412 return 0;
413}
414
415/*
416 * Allocate a buffer. If if fails, it adds the mux in buffer wait queue.
417 */
418static inline struct buffer *h1_get_buf(struct h1c *h1c, struct buffer *bptr)
419{
420 struct buffer *buf = NULL;
421
422 if (likely(LIST_ISEMPTY(&h1c->buf_wait.list)) &&
423 unlikely((buf = b_alloc_margin(bptr, 0)) == NULL)) {
424 h1c->buf_wait.target = h1c;
425 h1c->buf_wait.wakeup_cb = h1_buf_available;
426 HA_SPIN_LOCK(BUF_WQ_LOCK, &buffer_wq_lock);
427 LIST_ADDQ(&buffer_wq, &h1c->buf_wait.list);
428 HA_SPIN_UNLOCK(BUF_WQ_LOCK, &buffer_wq_lock);
429 __conn_xprt_stop_recv(h1c->conn);
430 }
431 return buf;
432}
433
434/*
435 * Release a buffer, if any, and try to wake up entities waiting in the buffer
436 * wait queue.
437 */
438static inline void h1_release_buf(struct h1c *h1c, struct buffer *bptr)
439{
440 if (bptr->size) {
441 b_free(bptr);
442 offer_buffers(h1c->buf_wait.target, tasks_run_queue);
443 }
444}
445
Willy Tarreau00f18a32019-01-26 12:19:01 +0100446/* returns the number of streams in use on a connection to figure if it's
447 * idle or not. We can't have an h1s without a CS so checking h1s is fine,
448 * as the caller will want to know if it was the last one after a detach().
449 */
450static int h1_used_streams(struct connection *conn)
Christopher Faulet51dbc942018-09-13 09:05:15 +0200451{
Willy Tarreau3d2ee552018-12-19 14:12:10 +0100452 struct h1c *h1c = conn->ctx;
Christopher Faulet51dbc942018-09-13 09:05:15 +0200453
Willy Tarreau00f18a32019-01-26 12:19:01 +0100454 return h1c->h1s ? 1 : 0;
Christopher Faulet51dbc942018-09-13 09:05:15 +0200455}
456
Willy Tarreau00f18a32019-01-26 12:19:01 +0100457/* returns the number of streams still available on a connection */
458static int h1_avail_streams(struct connection *conn)
Olivier Houchard8defe4b2018-12-02 01:31:17 +0100459{
Willy Tarreau00f18a32019-01-26 12:19:01 +0100460 return 1 - h1_used_streams(conn);
Olivier Houchard8defe4b2018-12-02 01:31:17 +0100461}
Christopher Faulet51dbc942018-09-13 09:05:15 +0200462
Willy Tarreau00f18a32019-01-26 12:19:01 +0100463
Christopher Faulet51dbc942018-09-13 09:05:15 +0200464/*****************************************************************/
465/* functions below are dedicated to the mux setup and management */
466/*****************************************************************/
Willy Tarreaufbdf90a2019-06-03 13:42:54 +0200467
468/* returns non-zero if there are input data pending for stream h1s. */
469static inline size_t h1s_data_pending(const struct h1s *h1s)
470{
471 const struct h1m *h1m;
472
473 h1m = conn_is_back(h1s->h1c->conn) ? &h1s->res : &h1s->req;
474 if (h1m->state == H1_MSG_DONE)
475 return 0; // data not for this stream (e.g. pipelining)
476
477 return b_data(&h1s->h1c->ibuf);
478}
479
Christopher Faulet47365272018-10-31 17:40:50 +0100480static struct conn_stream *h1s_new_cs(struct h1s *h1s)
481{
482 struct conn_stream *cs;
483
Christopher Faulet6b81df72019-10-01 22:08:43 +0200484 TRACE_ENTER(H1_EV_STRM_NEW, h1s->h1c->conn, h1s);
Christopher Faulet47365272018-10-31 17:40:50 +0100485 cs = cs_new(h1s->h1c->conn);
Christopher Faulet6b81df72019-10-01 22:08:43 +0200486 if (!cs) {
487 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 +0100488 goto err;
Christopher Faulet6b81df72019-10-01 22:08:43 +0200489 }
Christopher Faulet47365272018-10-31 17:40:50 +0100490 h1s->cs = cs;
491 cs->ctx = h1s;
492
493 if (h1s->flags & H1S_F_NOT_FIRST)
494 cs->flags |= CS_FL_NOT_FIRST;
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
528 h1s->recv_wait = NULL;
529 h1s->send_wait = NULL;
Christopher Faulet129817b2018-09-20 16:14:40 +0200530
531 h1m_init_req(&h1s->req);
Christopher Fauletb992af02019-03-28 15:42:24 +0100532 h1s->req.flags |= (H1_MF_NO_PHDR|H1_MF_CLEAN_CONN_HDR);
Christopher Faulet9768c262018-10-22 09:34:31 +0200533
Christopher Faulet129817b2018-09-20 16:14:40 +0200534 h1m_init_res(&h1s->res);
Christopher Fauletb992af02019-03-28 15:42:24 +0100535 h1s->res.flags |= (H1_MF_NO_PHDR|H1_MF_CLEAN_CONN_HDR);
Christopher Faulet129817b2018-09-20 16:14:40 +0200536
537 h1s->status = 0;
538 h1s->meth = HTTP_METH_OTHER;
539
Christopher Faulet47365272018-10-31 17:40:50 +0100540 if (h1c->flags & H1C_F_WAIT_NEXT_REQ)
541 h1s->flags |= H1S_F_NOT_FIRST;
542 h1c->flags &= ~H1C_F_WAIT_NEXT_REQ;
543
Christopher Faulet129817b2018-09-20 16:14:40 +0200544 if (!conn_is_back(h1c->conn)) {
545 if (h1c->px->options2 & PR_O2_REQBUG_OK)
546 h1s->req.err_pos = -1;
Christopher Faulete9b70722019-04-08 10:46:02 +0200547
548 /* For frontend connections we should always have a session */
549 if (!sess)
550 sess = h1c->conn->owner;
551
Dave Pirotte234740f2019-07-10 13:57:38 +0000552 /* Timers for subsequent sessions on the same HTTP 1.x connection
553 * measure from `now`, not from the connection accept time */
554 if (h1s->flags & H1S_F_NOT_FIRST) {
555 h1s->csinfo.create_date = date;
556 h1s->csinfo.tv_create = now;
557 h1s->csinfo.t_handshake = 0;
558 h1s->csinfo.t_idle = -1;
559 }
560 else {
561 h1s->csinfo.create_date = sess->accept_date;
562 h1s->csinfo.tv_create = sess->tv_accept;
563 h1s->csinfo.t_handshake = sess->t_handshake;
564 h1s->csinfo.t_idle = -1;
565 }
Christopher Faulet129817b2018-09-20 16:14:40 +0200566 }
567 else {
568 if (h1c->px->options2 & PR_O2_RSPBUG_OK)
569 h1s->res.err_pos = -1;
Christopher Fauletf2824e62018-10-01 12:12:37 +0200570
Christopher Fauletfeb11742018-11-29 15:12:34 +0100571 h1s->csinfo.create_date = date;
572 h1s->csinfo.tv_create = now;
573 h1s->csinfo.t_handshake = 0;
574 h1s->csinfo.t_idle = -1;
Christopher Faulete9b70722019-04-08 10:46:02 +0200575 }
Christopher Fauletfeb11742018-11-29 15:12:34 +0100576
Christopher Faulete9b70722019-04-08 10:46:02 +0200577 /* If a conn_stream already exists, attach it to this H1S. Otherwise we
578 * create a new one.
579 */
580 if (cs) {
Christopher Fauletf2824e62018-10-01 12:12:37 +0200581 cs->ctx = h1s;
582 h1s->cs = cs;
583 }
Christopher Faulet47365272018-10-31 17:40:50 +0100584 else {
585 cs = h1s_new_cs(h1s);
586 if (!cs)
587 goto fail;
588 }
Christopher Faulet6b81df72019-10-01 22:08:43 +0200589 TRACE_LEAVE(H1_EV_H1S_NEW, h1c->conn, h1s);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200590 return h1s;
Christopher Faulet47365272018-10-31 17:40:50 +0100591
592 fail:
593 pool_free(pool_head_h1s, h1s);
Christopher Faulet6b81df72019-10-01 22:08:43 +0200594 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 +0100595 return NULL;
Christopher Faulet51dbc942018-09-13 09:05:15 +0200596}
597
598static void h1s_destroy(struct h1s *h1s)
599{
Christopher Fauletf2824e62018-10-01 12:12:37 +0200600 if (h1s) {
601 struct h1c *h1c = h1s->h1c;
Christopher Faulet51dbc942018-09-13 09:05:15 +0200602
Christopher Faulet6b81df72019-10-01 22:08:43 +0200603 TRACE_POINT(H1_EV_H1S_END, h1c->conn, h1s);
Christopher Fauletf2824e62018-10-01 12:12:37 +0200604 h1c->h1s = NULL;
Christopher Faulet51dbc942018-09-13 09:05:15 +0200605
Christopher Fauletf2824e62018-10-01 12:12:37 +0200606 if (h1s->recv_wait != NULL)
Willy Tarreau4f6516d2018-12-19 13:59:17 +0100607 h1s->recv_wait->events &= ~SUB_RETRY_RECV;
Christopher Fauletf2824e62018-10-01 12:12:37 +0200608 if (h1s->send_wait != NULL)
Willy Tarreau4f6516d2018-12-19 13:59:17 +0100609 h1s->send_wait->events &= ~SUB_RETRY_SEND;
Christopher Fauletf2824e62018-10-01 12:12:37 +0200610
Christopher Fauletcb55f482018-12-10 11:56:47 +0100611 h1c->flags &= ~H1C_F_IN_BUSY;
Christopher Faulet47365272018-10-31 17:40:50 +0100612 h1c->flags |= H1C_F_WAIT_NEXT_REQ;
Christopher Faulet6b81df72019-10-01 22:08:43 +0200613 if (h1s->flags & (H1S_F_REQ_ERROR|H1S_F_RES_ERROR)) {
Christopher Faulet47365272018-10-31 17:40:50 +0100614 h1c->flags |= H1C_F_CS_ERROR;
Christopher Faulet6b81df72019-10-01 22:08:43 +0200615 TRACE_STATE("h1s on error, set error on h1c", H1_EV_H1C_ERR, h1c->conn, h1s);
616 }
Christopher Fauletf2824e62018-10-01 12:12:37 +0200617 pool_free(pool_head_h1s, h1s);
618 }
Christopher Faulet51dbc942018-09-13 09:05:15 +0200619}
620
Christopher Fauletfeb11742018-11-29 15:12:34 +0100621static const struct cs_info *h1_get_cs_info(struct conn_stream *cs)
622{
623 struct h1s *h1s = cs->ctx;
624
625 if (h1s && !conn_is_back(cs->conn))
626 return &h1s->csinfo;
627 return NULL;
628}
629
Christopher Faulet51dbc942018-09-13 09:05:15 +0200630/*
Christopher Faulet51f73eb2019-04-08 11:22:47 +0200631 * Initialize the mux once it's attached. It is expected that conn->ctx points
632 * to the existing conn_stream (for outgoing connections or for incoming onces
633 * during a mux upgrade) or NULL (for incoming ones during the connexion
634 * establishment). <input> is always used as Input buffer and may contain
635 * data. It is the caller responsibility to not reuse it anymore. Returns < 0 on
636 * error.
Christopher Faulet51dbc942018-09-13 09:05:15 +0200637 */
Christopher Faulet51f73eb2019-04-08 11:22:47 +0200638static int h1_init(struct connection *conn, struct proxy *proxy, struct session *sess,
639 struct buffer *input)
Christopher Faulet51dbc942018-09-13 09:05:15 +0200640{
Christopher Faulet51dbc942018-09-13 09:05:15 +0200641 struct h1c *h1c;
Christopher Fauletb8093cf2019-01-03 16:27:28 +0100642 struct task *t = NULL;
Christopher Faulet6b81df72019-10-01 22:08:43 +0200643 void *conn_ctx = conn->ctx;
644
645 TRACE_ENTER(H1_EV_H1C_NEW);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200646
647 h1c = pool_alloc(pool_head_h1c);
648 if (!h1c)
649 goto fail_h1c;
650 h1c->conn = conn;
651 h1c->px = proxy;
652
653 h1c->flags = H1C_F_NONE;
Christopher Faulet51f73eb2019-04-08 11:22:47 +0200654 h1c->ibuf = *input;
Christopher Faulet51dbc942018-09-13 09:05:15 +0200655 h1c->obuf = BUF_NULL;
656 h1c->h1s = NULL;
Christopher Faulet51f73eb2019-04-08 11:22:47 +0200657 h1c->task = NULL;
Christopher Faulet51dbc942018-09-13 09:05:15 +0200658
Christopher Faulet51dbc942018-09-13 09:05:15 +0200659 LIST_INIT(&h1c->buf_wait.list);
Willy Tarreau3c39a7d2019-06-14 14:42:29 +0200660 h1c->wait_event.tasklet = tasklet_new();
661 if (!h1c->wait_event.tasklet)
Christopher Faulet51dbc942018-09-13 09:05:15 +0200662 goto fail;
Willy Tarreau3c39a7d2019-06-14 14:42:29 +0200663 h1c->wait_event.tasklet->process = h1_io_cb;
664 h1c->wait_event.tasklet->context = h1c;
Willy Tarreau4f6516d2018-12-19 13:59:17 +0100665 h1c->wait_event.events = 0;
Christopher Faulet51dbc942018-09-13 09:05:15 +0200666
Christopher Faulete9b70722019-04-08 10:46:02 +0200667 if (conn_is_back(conn)) {
Christopher Fauletb8093cf2019-01-03 16:27:28 +0100668 h1c->shut_timeout = h1c->timeout = proxy->timeout.server;
669 if (tick_isset(proxy->timeout.serverfin))
670 h1c->shut_timeout = proxy->timeout.serverfin;
671 } else {
672 h1c->shut_timeout = h1c->timeout = proxy->timeout.client;
673 if (tick_isset(proxy->timeout.clientfin))
674 h1c->shut_timeout = proxy->timeout.clientfin;
675 }
676 if (tick_isset(h1c->timeout)) {
677 t = task_new(tid_bit);
678 if (!t)
679 goto fail;
680
681 h1c->task = t;
682 t->process = h1_timeout_task;
683 t->context = h1c;
684 t->expire = tick_add(now_ms, h1c->timeout);
685 }
686
Willy Tarreau3d2ee552018-12-19 14:12:10 +0100687 conn->ctx = h1c;
Christopher Faulet129817b2018-09-20 16:14:40 +0200688
Christopher Faulet6b81df72019-10-01 22:08:43 +0200689 /* Always Create a new H1S */
690 if (!h1s_create(h1c, conn_ctx, sess))
691 goto fail;
Christopher Fauletb8093cf2019-01-03 16:27:28 +0100692
693 if (t)
694 task_queue(t);
695
Christopher Faulet51dbc942018-09-13 09:05:15 +0200696 /* Try to read, if nothing is available yet we'll just subscribe */
Willy Tarreau3c39a7d2019-06-14 14:42:29 +0200697 tasklet_wakeup(h1c->wait_event.tasklet);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200698
699 /* mux->wake will be called soon to complete the operation */
Christopher Faulet6b81df72019-10-01 22:08:43 +0200700 TRACE_LEAVE(H1_EV_H1C_NEW, conn, h1c->h1s);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200701 return 0;
702
703 fail:
Willy Tarreauf6562792019-05-07 19:05:35 +0200704 task_destroy(t);
Willy Tarreau3c39a7d2019-06-14 14:42:29 +0200705 if (h1c->wait_event.tasklet)
706 tasklet_free(h1c->wait_event.tasklet);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200707 pool_free(pool_head_h1c, h1c);
708 fail_h1c:
Christopher Faulet6b81df72019-10-01 22:08:43 +0200709 conn->ctx = conn_ctx; // restore saved context
710 TRACE_DEVEL("leaving in error", H1_EV_H1C_NEW|H1_EV_H1C_END|H1_EV_H1C_ERR);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200711 return -1;
712}
713
Christopher Faulet73c12072019-04-08 11:23:22 +0200714/* release function. This one should be called to free all resources allocated
715 * to the mux.
Christopher Faulet51dbc942018-09-13 09:05:15 +0200716 */
Christopher Faulet73c12072019-04-08 11:23:22 +0200717static void h1_release(struct h1c *h1c)
Christopher Faulet51dbc942018-09-13 09:05:15 +0200718{
Christopher Faulet61840e72019-04-15 09:33:32 +0200719 struct connection *conn = NULL;
Christopher Faulet39a96ee2019-04-08 10:52:21 +0200720
Christopher Faulet6b81df72019-10-01 22:08:43 +0200721 TRACE_POINT(H1_EV_H1C_END);
722
Christopher Faulet51dbc942018-09-13 09:05:15 +0200723 if (h1c) {
Christopher Faulet61840e72019-04-15 09:33:32 +0200724 /* The connection must be aattached to this mux to be released */
725 if (h1c->conn && h1c->conn->ctx == h1c)
726 conn = h1c->conn;
727
Christopher Faulet6b81df72019-10-01 22:08:43 +0200728 TRACE_DEVEL("freeing h1c", H1_EV_H1C_END, conn);
729
Christopher Faulet61840e72019-04-15 09:33:32 +0200730 if (conn && h1c->flags & H1C_F_UPG_H2C) {
Christopher Faulet6b81df72019-10-01 22:08:43 +0200731 TRACE_DEVEL("upgrading H1 to H2", H1_EV_H1C_END, conn);
Christopher Faulet0ef372a2019-04-08 10:57:20 +0200732 h1c->flags &= ~H1C_F_UPG_H2C;
Olivier Houchard2ab3dad2019-07-03 13:08:18 +0200733 /* Make sure we're no longer subscribed to anything */
734 if (h1c->wait_event.events)
735 conn->xprt->unsubscribe(conn, conn->xprt_ctx,
736 h1c->wait_event.events, &h1c->wait_event);
Christopher Fauletc985f6c2019-07-15 11:42:52 +0200737 if (conn_upgrade_mux_fe(conn, NULL, &h1c->ibuf, ist("h2"), PROTO_MODE_HTTP) != -1) {
Christopher Faulet0ef372a2019-04-08 10:57:20 +0200738 /* connection successfully upgraded to H2, this
739 * mux was already released */
740 return;
741 }
Christopher Faulet6b81df72019-10-01 22:08:43 +0200742 TRACE_DEVEL("h2 upgrade failed", H1_EV_H1C_END|H1_EV_H1C_ERR, conn);
Christopher Faulet0ef372a2019-04-08 10:57:20 +0200743 sess_log(conn->owner); /* Log if the upgrade failed */
744 }
745
Olivier Houchard45c44372019-06-11 14:06:23 +0200746
Christopher Faulet51dbc942018-09-13 09:05:15 +0200747 if (!LIST_ISEMPTY(&h1c->buf_wait.list)) {
748 HA_SPIN_LOCK(BUF_WQ_LOCK, &buffer_wq_lock);
749 LIST_DEL(&h1c->buf_wait.list);
750 LIST_INIT(&h1c->buf_wait.list);
751 HA_SPIN_UNLOCK(BUF_WQ_LOCK, &buffer_wq_lock);
752 }
753
754 h1_release_buf(h1c, &h1c->ibuf);
755 h1_release_buf(h1c, &h1c->obuf);
756
Christopher Fauletb8093cf2019-01-03 16:27:28 +0100757 if (h1c->task) {
758 h1c->task->context = NULL;
759 task_wakeup(h1c->task, TASK_WOKEN_OTHER);
760 h1c->task = NULL;
761 }
762
Willy Tarreau3c39a7d2019-06-14 14:42:29 +0200763 if (h1c->wait_event.tasklet)
764 tasklet_free(h1c->wait_event.tasklet);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200765
Christopher Fauletf2824e62018-10-01 12:12:37 +0200766 h1s_destroy(h1c->h1s);
Olivier Houchard0e079372019-04-15 17:51:16 +0200767 if (conn && h1c->wait_event.events != 0)
Olivier Houcharde179d0e2019-03-21 18:27:17 +0100768 conn->xprt->unsubscribe(conn, conn->xprt_ctx, h1c->wait_event.events,
Olivier Houchard0e079372019-04-15 17:51:16 +0200769 &h1c->wait_event);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200770 pool_free(pool_head_h1c, h1c);
771 }
772
Christopher Faulet39a96ee2019-04-08 10:52:21 +0200773 if (conn) {
774 conn->mux = NULL;
775 conn->ctx = NULL;
Christopher Faulet6b81df72019-10-01 22:08:43 +0200776 TRACE_DEVEL("freeing conn", H1_EV_H1C_END, conn);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200777
Christopher Faulet39a96ee2019-04-08 10:52:21 +0200778 conn_stop_tracking(conn);
779 conn_full_close(conn);
780 if (conn->destroy_cb)
781 conn->destroy_cb(conn);
782 conn_free(conn);
783 }
Christopher Faulet51dbc942018-09-13 09:05:15 +0200784}
785
786/******************************************************/
787/* functions below are for the H1 protocol processing */
788/******************************************************/
Christopher Faulet9768c262018-10-22 09:34:31 +0200789/* Parse the request version and set H1_MF_VER_11 on <h1m> if the version is
790 * greater or equal to 1.1
Christopher Fauletf2824e62018-10-01 12:12:37 +0200791 */
Christopher Faulet570d1612018-11-26 11:13:57 +0100792static void h1_parse_req_vsn(struct h1m *h1m, const struct htx_sl *sl)
Christopher Fauletf2824e62018-10-01 12:12:37 +0200793{
Christopher Faulet570d1612018-11-26 11:13:57 +0100794 const char *p = HTX_SL_REQ_VPTR(sl);
Christopher Faulet9768c262018-10-22 09:34:31 +0200795
Christopher Faulet570d1612018-11-26 11:13:57 +0100796 if ((HTX_SL_REQ_VLEN(sl) == 8) &&
Christopher Faulet9768c262018-10-22 09:34:31 +0200797 (*(p + 5) > '1' ||
798 (*(p + 5) == '1' && *(p + 7) >= '1')))
799 h1m->flags |= H1_MF_VER_11;
800}
Christopher Fauletf2824e62018-10-01 12:12:37 +0200801
Christopher Faulet9768c262018-10-22 09:34:31 +0200802/* Parse the response version and set H1_MF_VER_11 on <h1m> if the version is
803 * greater or equal to 1.1
804 */
Christopher Faulet570d1612018-11-26 11:13:57 +0100805static void h1_parse_res_vsn(struct h1m *h1m, const struct htx_sl *sl)
Christopher Faulet9768c262018-10-22 09:34:31 +0200806{
Christopher Faulet570d1612018-11-26 11:13:57 +0100807 const char *p = HTX_SL_RES_VPTR(sl);
Christopher Fauletf2824e62018-10-01 12:12:37 +0200808
Christopher Faulet570d1612018-11-26 11:13:57 +0100809 if ((HTX_SL_RES_VLEN(sl) == 8) &&
Christopher Faulet9768c262018-10-22 09:34:31 +0200810 (*(p + 5) > '1' ||
811 (*(p + 5) == '1' && *(p + 7) >= '1')))
812 h1m->flags |= H1_MF_VER_11;
813}
Christopher Fauletf2824e62018-10-01 12:12:37 +0200814
Christopher Fauletf2824e62018-10-01 12:12:37 +0200815/* Deduce the connection mode of the client connection, depending on the
816 * configuration and the H1 message flags. This function is called twice, the
817 * first time when the request is parsed and the second time when the response
818 * is parsed.
819 */
820static void h1_set_cli_conn_mode(struct h1s *h1s, struct h1m *h1m)
821{
822 struct proxy *fe = h1s->h1c->px;
Christopher Fauletf2824e62018-10-01 12:12:37 +0200823
824 if (h1m->flags & H1_MF_RESP) {
Christopher Fauletb992af02019-03-28 15:42:24 +0100825 /* Output direction: second pass */
Christopher Fauletf2824e62018-10-01 12:12:37 +0200826 if ((h1s->meth == HTTP_METH_CONNECT && h1s->status == 200) ||
Christopher Fauletb992af02019-03-28 15:42:24 +0100827 h1s->status == 101) {
828 /* Either we've established an explicit tunnel, or we're
829 * switching the protocol. In both cases, we're very unlikely to
830 * understand the next protocols. We have to switch to tunnel
831 * mode, so that we transfer the request and responses then let
832 * this protocol pass unmodified. When we later implement
833 * specific parsers for such protocols, we'll want to check the
834 * Upgrade header which contains information about that protocol
835 * for responses with status 101 (eg: see RFC2817 about TLS).
836 */
Christopher Fauletf2824e62018-10-01 12:12:37 +0200837 h1s->flags = (h1s->flags & ~H1S_F_WANT_MSK) | H1S_F_WANT_TUN;
Christopher Faulet6b81df72019-10-01 22:08:43 +0200838 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 +0100839 }
840 else if (h1s->flags & H1S_F_WANT_KAL) {
841 /* By default the client is in KAL mode. CLOSE mode mean
842 * it is imposed by the client itself. So only change
843 * KAL mode here. */
844 if (!(h1m->flags & H1_MF_XFER_LEN) || (h1m->flags & H1_MF_CONN_CLO)) {
845 /* no length known or explicit close => close */
846 h1s->flags = (h1s->flags & ~H1S_F_WANT_MSK) | H1S_F_WANT_CLO;
Christopher Faulet6b81df72019-10-01 22:08:43 +0200847 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 +0100848 }
849 else if (!(h1m->flags & H1_MF_CONN_KAL) &&
850 (fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_CLO) {
851 /* no explict keep-alive and option httpclose => close */
852 h1s->flags = (h1s->flags & ~H1S_F_WANT_MSK) | H1S_F_WANT_CLO;
Christopher Faulet6b81df72019-10-01 22:08:43 +0200853 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 +0100854 }
855 }
Christopher Fauletf2824e62018-10-01 12:12:37 +0200856 }
857 else {
Christopher Fauletb992af02019-03-28 15:42:24 +0100858 /* Input direction: first pass */
859 if (!(h1m->flags & (H1_MF_VER_11|H1_MF_CONN_KAL)) || h1m->flags & H1_MF_CONN_CLO) {
860 /* no explicit keep-alive in HTTP/1.0 or explicit close => close*/
Christopher Fauletf2824e62018-10-01 12:12:37 +0200861 h1s->flags = (h1s->flags & ~H1S_F_WANT_MSK) | H1S_F_WANT_CLO;
Christopher Faulet6b81df72019-10-01 22:08:43 +0200862 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 +0100863 }
Christopher Fauletf2824e62018-10-01 12:12:37 +0200864 }
865
866 /* If KAL, check if the frontend is stopping. If yes, switch in CLO mode */
Christopher Faulet6b81df72019-10-01 22:08:43 +0200867 if (h1s->flags & H1S_F_WANT_KAL && fe->state == PR_STSTOPPED) {
Christopher Fauletf2824e62018-10-01 12:12:37 +0200868 h1s->flags = (h1s->flags & ~H1S_F_WANT_MSK) | H1S_F_WANT_CLO;
Christopher Faulet6b81df72019-10-01 22:08:43 +0200869 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);
870 }
Christopher Fauletf2824e62018-10-01 12:12:37 +0200871}
872
873/* Deduce the connection mode of the client connection, depending on the
874 * configuration and the H1 message flags. This function is called twice, the
875 * first time when the request is parsed and the second time when the response
876 * is parsed.
877 */
878static void h1_set_srv_conn_mode(struct h1s *h1s, struct h1m *h1m)
879{
Olivier Houchardf502aca2018-12-14 19:42:40 +0100880 struct session *sess = h1s->sess;
Christopher Fauletb992af02019-03-28 15:42:24 +0100881 struct proxy *be = h1s->h1c->px;
Olivier Houchardf502aca2018-12-14 19:42:40 +0100882 int fe_flags = sess ? sess->fe->options : 0;
Christopher Fauletf2824e62018-10-01 12:12:37 +0200883
Christopher Fauletf2824e62018-10-01 12:12:37 +0200884 if (h1m->flags & H1_MF_RESP) {
Christopher Fauletb992af02019-03-28 15:42:24 +0100885 /* Input direction: second pass */
Christopher Fauletf2824e62018-10-01 12:12:37 +0200886 if ((h1s->meth == HTTP_METH_CONNECT && h1s->status == 200) ||
Christopher Fauletb992af02019-03-28 15:42:24 +0100887 h1s->status == 101) {
888 /* Either we've established an explicit tunnel, or we're
889 * switching the protocol. In both cases, we're very unlikely to
890 * understand the next protocols. We have to switch to tunnel
891 * mode, so that we transfer the request and responses then let
892 * this protocol pass unmodified. When we later implement
893 * specific parsers for such protocols, we'll want to check the
894 * Upgrade header which contains information about that protocol
895 * for responses with status 101 (eg: see RFC2817 about TLS).
896 */
Christopher Fauletf2824e62018-10-01 12:12:37 +0200897 h1s->flags = (h1s->flags & ~H1S_F_WANT_MSK) | H1S_F_WANT_TUN;
Christopher Faulet6b81df72019-10-01 22:08:43 +0200898 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 +0100899 }
900 else if (h1s->flags & H1S_F_WANT_KAL) {
901 /* By default the server is in KAL mode. CLOSE mode mean
902 * it is imposed by haproxy itself. So only change KAL
903 * mode here. */
904 if (!(h1m->flags & H1_MF_XFER_LEN) || h1m->flags & H1_MF_CONN_CLO ||
905 !(h1m->flags & (H1_MF_VER_11|H1_MF_CONN_KAL))){
906 /* no length known or explicit close or no explicit keep-alive in HTTP/1.0 => close */
907 h1s->flags = (h1s->flags & ~H1S_F_WANT_MSK) | H1S_F_WANT_CLO;
Christopher Faulet6b81df72019-10-01 22:08:43 +0200908 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 +0100909 }
910 }
Christopher Fauletf2824e62018-10-01 12:12:37 +0200911 }
Christopher Faulet70033782018-12-05 13:50:11 +0100912 else {
Christopher Fauletb992af02019-03-28 15:42:24 +0100913 /* Output direction: first pass */
914 if (h1m->flags & H1_MF_CONN_CLO) {
915 /* explicit close => close */
Christopher Faulet70033782018-12-05 13:50:11 +0100916 h1s->flags = (h1s->flags & ~H1S_F_WANT_MSK) | H1S_F_WANT_CLO;
Christopher Faulet6b81df72019-10-01 22:08:43 +0200917 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 +0100918 }
919 else if (!(h1m->flags & H1_MF_CONN_KAL) &&
920 ((fe_flags & PR_O_HTTP_MODE) == PR_O_HTTP_SCL ||
921 (be->options & PR_O_HTTP_MODE) == PR_O_HTTP_SCL ||
922 (fe_flags & PR_O_HTTP_MODE) == PR_O_HTTP_CLO ||
923 (be->options & PR_O_HTTP_MODE) == PR_O_HTTP_CLO)) {
924 /* no explicit keep-alive option httpclose/server-close => close */
925 h1s->flags = (h1s->flags & ~H1S_F_WANT_MSK) | H1S_F_WANT_CLO;
Christopher Faulet6b81df72019-10-01 22:08:43 +0200926 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 +0100927 }
Christopher Faulet70033782018-12-05 13:50:11 +0100928 }
Christopher Fauletf2824e62018-10-01 12:12:37 +0200929
930 /* If KAL, check if the backend is stopping. If yes, switch in CLO mode */
Christopher Faulet6b81df72019-10-01 22:08:43 +0200931 if (h1s->flags & H1S_F_WANT_KAL && be->state == PR_STSTOPPED) {
Christopher Fauletf2824e62018-10-01 12:12:37 +0200932 h1s->flags = (h1s->flags & ~H1S_F_WANT_MSK) | H1S_F_WANT_CLO;
Christopher Faulet6b81df72019-10-01 22:08:43 +0200933 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);
934 }
Christopher Fauletf2824e62018-10-01 12:12:37 +0200935}
936
Christopher Fauletb992af02019-03-28 15:42:24 +0100937static void h1_update_req_conn_value(struct h1s *h1s, struct h1m *h1m, struct ist *conn_val)
Christopher Fauletf2824e62018-10-01 12:12:37 +0200938{
939 struct proxy *px = h1s->h1c->px;
Christopher Fauletf2824e62018-10-01 12:12:37 +0200940
941 /* Don't update "Connection:" header in TUNNEL mode or if "Upgrage"
942 * token is found
943 */
944 if (h1s->flags & H1S_F_WANT_TUN || h1m->flags & H1_MF_CONN_UPG)
Christopher Faulet9768c262018-10-22 09:34:31 +0200945 return;
Christopher Fauletf2824e62018-10-01 12:12:37 +0200946
947 if (h1s->flags & H1S_F_WANT_KAL || px->options2 & PR_O2_FAKE_KA) {
Christopher Faulet6b81df72019-10-01 22:08:43 +0200948 if (!(h1m->flags & H1_MF_VER_11)) {
949 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 +0100950 *conn_val = ist("keep-alive");
Christopher Faulet6b81df72019-10-01 22:08:43 +0200951 }
Christopher Fauletf2824e62018-10-01 12:12:37 +0200952 }
953 else { /* H1S_F_WANT_CLO && !PR_O2_FAKE_KA */
Christopher Faulet6b81df72019-10-01 22:08:43 +0200954 if (h1m->flags & H1_MF_VER_11) {
955 TRACE_STATE("add \"Connection: close\"", H1_EV_TX_DATA|H1_EV_TX_HDRS, h1s->h1c->conn, h1s);
Christopher Fauletb992af02019-03-28 15:42:24 +0100956 *conn_val = ist("close");
Christopher Faulet6b81df72019-10-01 22:08:43 +0200957 }
Christopher Fauletf2824e62018-10-01 12:12:37 +0200958 }
Christopher Fauletf2824e62018-10-01 12:12:37 +0200959}
960
Christopher Fauletb992af02019-03-28 15:42:24 +0100961static void h1_update_res_conn_value(struct h1s *h1s, struct h1m *h1m, struct ist *conn_val)
Christopher Fauletf2824e62018-10-01 12:12:37 +0200962{
Christopher Fauletf2824e62018-10-01 12:12:37 +0200963 /* Don't update "Connection:" header in TUNNEL mode or if "Upgrage"
964 * token is found
965 */
966 if (h1s->flags & H1S_F_WANT_TUN || h1m->flags & H1_MF_CONN_UPG)
Christopher Faulet9768c262018-10-22 09:34:31 +0200967 return;
Christopher Fauletf2824e62018-10-01 12:12:37 +0200968
969 if (h1s->flags & H1S_F_WANT_KAL) {
Christopher Fauletb992af02019-03-28 15:42:24 +0100970 if (!(h1m->flags & H1_MF_VER_11) ||
Christopher Faulet6b81df72019-10-01 22:08:43 +0200971 !((h1m->flags & h1s->req.flags) & H1_MF_VER_11)) {
972 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 +0100973 *conn_val = ist("keep-alive");
Christopher Faulet6b81df72019-10-01 22:08:43 +0200974 }
Christopher Fauletf2824e62018-10-01 12:12:37 +0200975 }
976 else { /* H1S_F_WANT_CLO */
Christopher Faulet6b81df72019-10-01 22:08:43 +0200977 if (h1m->flags & H1_MF_VER_11) {
978 TRACE_STATE("add \"Connection: close\"", H1_EV_TX_DATA|H1_EV_TX_HDRS, h1s->h1c->conn, h1s);
Christopher Fauletb992af02019-03-28 15:42:24 +0100979 *conn_val = ist("close");
Christopher Faulet6b81df72019-10-01 22:08:43 +0200980 }
Christopher Fauletf2824e62018-10-01 12:12:37 +0200981 }
Christopher Faulet9768c262018-10-22 09:34:31 +0200982}
Christopher Fauletf2824e62018-10-01 12:12:37 +0200983
Christopher Fauletb992af02019-03-28 15:42:24 +0100984static void h1_process_input_conn_mode(struct h1s *h1s, struct h1m *h1m, struct htx *htx)
Christopher Faulet9768c262018-10-22 09:34:31 +0200985{
Christopher Fauletb992af02019-03-28 15:42:24 +0100986 if (!conn_is_back(h1s->h1c->conn))
Christopher Faulet9768c262018-10-22 09:34:31 +0200987 h1_set_cli_conn_mode(h1s, h1m);
Christopher Fauletb992af02019-03-28 15:42:24 +0100988 else
Christopher Faulet9768c262018-10-22 09:34:31 +0200989 h1_set_srv_conn_mode(h1s, h1m);
Christopher Fauletf2824e62018-10-01 12:12:37 +0200990}
991
Christopher Fauletb992af02019-03-28 15:42:24 +0100992static void h1_process_output_conn_mode(struct h1s *h1s, struct h1m *h1m, struct ist *conn_val)
993{
994 if (!conn_is_back(h1s->h1c->conn))
995 h1_set_cli_conn_mode(h1s, h1m);
996 else
997 h1_set_srv_conn_mode(h1s, h1m);
998
999 if (!(h1m->flags & H1_MF_RESP))
1000 h1_update_req_conn_value(h1s, h1m, conn_val);
1001 else
1002 h1_update_res_conn_value(h1s, h1m, conn_val);
1003}
Christopher Faulete44769b2018-11-29 23:01:45 +01001004
Christopher Faulet98fbe952019-07-22 16:18:24 +02001005/* Try to adjust the case of the message header name using the global map
1006 * <hdrs_map>.
1007 */
1008static void h1_adjust_case_outgoing_hdr(struct h1s *h1s, struct h1m *h1m, struct ist *name)
1009{
1010 struct ebpt_node *node;
1011 struct h1_hdr_entry *entry;
1012
1013 /* No entry in the map, do nothing */
1014 if (eb_is_empty(&hdrs_map.map))
1015 return;
1016
1017 /* No conversion fo the request headers */
1018 if (!(h1m->flags & H1_MF_RESP) && !(h1s->h1c->px->options2 & PR_O2_H1_ADJ_BUGSRV))
1019 return;
1020
1021 /* No conversion fo the response headers */
1022 if ((h1m->flags & H1_MF_RESP) && !(h1s->h1c->px->options2 & PR_O2_H1_ADJ_BUGCLI))
1023 return;
1024
1025 node = ebis_lookup_len(&hdrs_map.map, name->ptr, name->len);
1026 if (!node)
1027 return;
1028 entry = container_of(node, struct h1_hdr_entry, node);
1029 name->ptr = entry->name.ptr;
1030 name->len = entry->name.len;
1031}
1032
Christopher Faulete44769b2018-11-29 23:01:45 +01001033/* Append the description of what is present in error snapshot <es> into <out>.
1034 * The description must be small enough to always fit in a buffer. The output
1035 * buffer may be the trash so the trash must not be used inside this function.
1036 */
1037static void h1_show_error_snapshot(struct buffer *out, const struct error_snapshot *es)
1038{
1039 chunk_appendf(out,
Christopher Fauletaa75b3d2018-12-05 16:20:40 +01001040 " H1 connection flags 0x%08x, H1 stream flags 0x%08x\n"
1041 " H1 msg state %s(%d), H1 msg flags 0x%08x\n"
1042 " H1 chunk len %lld bytes, H1 body len %lld bytes :\n",
1043 es->ctx.h1.c_flags, es->ctx.h1.s_flags,
1044 h1m_state_str(es->ctx.h1.state), es->ctx.h1.state,
1045 es->ctx.h1.m_flags, es->ctx.h1.m_clen, es->ctx.h1.m_blen);
Christopher Faulete44769b2018-11-29 23:01:45 +01001046}
1047/*
1048 * Capture a bad request or response and archive it in the proxy's structure.
1049 * By default it tries to report the error position as h1m->err_pos. However if
1050 * this one is not set, it will then report h1m->next, which is the last known
1051 * parsing point. The function is able to deal with wrapping buffers. It always
1052 * displays buffers as a contiguous area starting at buf->p. The direction is
1053 * determined thanks to the h1m's flags.
1054 */
1055static void h1_capture_bad_message(struct h1c *h1c, struct h1s *h1s,
1056 struct h1m *h1m, struct buffer *buf)
1057{
1058 struct session *sess = h1c->conn->owner;
1059 struct proxy *proxy = h1c->px;
1060 struct proxy *other_end = sess->fe;
1061 union error_snapshot_ctx ctx;
1062
Willy Tarreau598d7fc2018-12-18 18:10:38 +01001063 if (h1s->cs->data && !(h1m->flags & H1_MF_RESP))
Christopher Faulete44769b2018-11-29 23:01:45 +01001064 other_end = si_strm(h1s->cs->data)->be;
1065
1066 /* http-specific part now */
1067 ctx.h1.state = h1m->state;
1068 ctx.h1.c_flags = h1c->flags;
1069 ctx.h1.s_flags = h1s->flags;
1070 ctx.h1.m_flags = h1m->flags;
1071 ctx.h1.m_clen = h1m->curr_len;
1072 ctx.h1.m_blen = h1m->body_len;
1073
1074 proxy_capture_error(proxy, !!(h1m->flags & H1_MF_RESP), other_end,
1075 h1c->conn->target, sess, buf, 0, 0,
Christopher Fauletaa75b3d2018-12-05 16:20:40 +01001076 (h1m->err_pos >= 0) ? h1m->err_pos : h1m->next,
1077 &ctx, h1_show_error_snapshot);
Christopher Faulete44769b2018-11-29 23:01:45 +01001078}
1079
Christopher Fauletadb22202018-12-12 10:32:09 +01001080/* Emit the chunksize followed by a CRLF in front of data of the buffer
1081 * <buf>. It goes backwards and starts with the byte before the buffer's
1082 * head. The caller is responsible for ensuring there is enough room left before
1083 * the buffer's head for the string.
1084 */
1085static void h1_emit_chunk_size(struct buffer *buf, size_t chksz)
1086{
1087 char *beg, *end;
1088
1089 beg = end = b_head(buf);
1090 *--beg = '\n';
1091 *--beg = '\r';
1092 do {
1093 *--beg = hextab[chksz & 0xF];
1094 } while (chksz >>= 4);
1095 buf->head -= (end - beg);
1096 b_add(buf, end - beg);
1097}
1098
1099/* Emit a CRLF after the data of the buffer <buf>. The caller is responsible for
1100 * ensuring there is enough room left in the buffer for the string. */
1101static void h1_emit_chunk_crlf(struct buffer *buf)
1102{
1103 *(b_peek(buf, b_data(buf))) = '\r';
1104 *(b_peek(buf, b_data(buf) + 1)) = '\n';
1105 b_add(buf, 2);
1106}
1107
Christopher Faulet129817b2018-09-20 16:14:40 +02001108/*
Christopher Fauletc62c2b92019-03-28 11:41:39 +01001109 * Switch the request to tunnel mode. This function must only be called for
Christopher Fauletf3158e92019-11-15 11:14:23 +01001110 * CONNECT requests. On the client side, if the response is not finished, the
1111 * mux is mark as busy on input.
Christopher Fauletc62c2b92019-03-28 11:41:39 +01001112 */
1113static void h1_set_req_tunnel_mode(struct h1s *h1s)
1114{
1115 h1s->req.flags &= ~(H1_MF_XFER_LEN|H1_MF_CLEN|H1_MF_CHNK);
1116 h1s->req.state = H1_MSG_TUNNEL;
Christopher Fauletf3158e92019-11-15 11:14:23 +01001117 TRACE_STATE("switch H1 request in tunnel mode", H1_EV_TX_DATA|H1_EV_TX_HDRS, h1s->h1c->conn, h1s);
1118
1119 if (!conn_is_back(h1s->h1c->conn) && h1s->res.state < H1_MSG_DONE) {
Christopher Fauletc62c2b92019-03-28 11:41:39 +01001120 h1s->h1c->flags |= H1C_F_IN_BUSY;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001121 TRACE_STATE("switch h1c in busy mode", H1_EV_RX_DATA|H1_EV_H1C_BLK, h1s->h1c->conn, h1s);
1122 }
Christopher Fauletf3158e92019-11-15 11:14:23 +01001123 else if (h1s->h1c->flags & H1C_F_IN_BUSY) {
1124 h1s->h1c->flags &= ~H1C_F_IN_BUSY;
1125 tasklet_wakeup(h1s->h1c->wait_event.tasklet);
1126 TRACE_STATE("h1c no more busy", H1_EV_RX_DATA|H1_EV_H1C_BLK|H1_EV_H1C_WAKE, h1s->h1c->conn, h1s);
1127 }
Christopher Fauletc62c2b92019-03-28 11:41:39 +01001128}
1129
1130/*
1131 * Switch the response to tunnel mode. This function must only be called on
Christopher Fauletf3158e92019-11-15 11:14:23 +01001132 * successfull replies to CONNECT requests or on protocol switching. In this
1133 * last case, this function takes care to switch the request to tunnel mode if
1134 * possible. On the server side, if the request is not finished, the mux is mark
1135 * as busy on input.
Christopher Fauletc62c2b92019-03-28 11:41:39 +01001136 */
1137static void h1_set_res_tunnel_mode(struct h1s *h1s)
1138{
Christopher Fauletf3158e92019-11-15 11:14:23 +01001139 /* On protocol switching, switch the request to tunnel mode if it is in
1140 * DONE state. Otherwise we will wait the end of the request to switch
1141 * it in tunnel mode.
1142 */
1143 if (h1s->status == 101 && h1s->req.state == H1_MSG_DONE) {
1144 h1s->req.flags &= ~(H1_MF_XFER_LEN|H1_MF_CLEN|H1_MF_CHNK);
1145 h1s->req.state = H1_MSG_TUNNEL;
1146 TRACE_STATE("switch H1 request in tunnel mode", H1_EV_TX_DATA|H1_EV_TX_HDRS, h1s->h1c->conn, h1s);
1147 }
1148
Christopher Fauletc62c2b92019-03-28 11:41:39 +01001149 h1s->res.flags &= ~(H1_MF_XFER_LEN|H1_MF_CLEN|H1_MF_CHNK);
1150 h1s->res.state = H1_MSG_TUNNEL;
Christopher Fauletf3158e92019-11-15 11:14:23 +01001151 TRACE_STATE("switch H1 response in tunnel mode", H1_EV_TX_DATA|H1_EV_TX_HDRS, h1s->h1c->conn, h1s);
1152
Christopher Faulet6b81df72019-10-01 22:08:43 +02001153 if (conn_is_back(h1s->h1c->conn) && h1s->req.state < H1_MSG_DONE) {
Christopher Fauletc62c2b92019-03-28 11:41:39 +01001154 h1s->h1c->flags |= H1C_F_IN_BUSY;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001155 TRACE_STATE("switch h1c in busy mode", H1_EV_RX_DATA|H1_EV_H1C_BLK, h1s->h1c->conn, h1s);
1156 }
Christopher Fauletf3158e92019-11-15 11:14:23 +01001157 else if (h1s->h1c->flags & H1C_F_IN_BUSY) {
1158 h1s->h1c->flags &= ~H1C_F_IN_BUSY;
1159 tasklet_wakeup(h1s->h1c->wait_event.tasklet);
1160 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 +01001161 }
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001162}
1163
1164/*
Christopher Faulet129817b2018-09-20 16:14:40 +02001165 * Parse HTTP/1 headers. It returns the number of bytes parsed if > 0, or 0 if
Christopher Fauletf2824e62018-10-01 12:12:37 +02001166 * it couldn't proceed. Parsing errors are reported by setting H1S_F_*_ERROR
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001167 * flag. If relies on the function http_parse_msg_hdrs() to do the parsing.
Christopher Faulet129817b2018-09-20 16:14:40 +02001168 */
Christopher Faulet9768c262018-10-22 09:34:31 +02001169static size_t h1_process_headers(struct h1s *h1s, struct h1m *h1m, struct htx *htx,
Christopher Fauletf2824e62018-10-01 12:12:37 +02001170 struct buffer *buf, size_t *ofs, size_t max)
Christopher Faulet129817b2018-09-20 16:14:40 +02001171{
Christopher Fauletf1ba18d2018-11-26 21:37:08 +01001172 union h1_sl h1sl;
Christopher Faulet129817b2018-09-20 16:14:40 +02001173 int ret = 0;
1174
Christopher Faulet6b81df72019-10-01 22:08:43 +02001175 TRACE_ENTER(H1_EV_RX_DATA|H1_EV_RX_HDRS, h1s->h1c->conn, h1s,, (size_t[]){max});
1176
Christopher Fauleteec96b52019-09-25 09:10:46 +02001177 if (!(h1s->flags & H1S_F_NOT_FIRST) && !(h1m->flags & H1_MF_RESP)) {
Christopher Faulet0ef372a2019-04-08 10:57:20 +02001178 /* Try to match H2 preface before parsing the request headers. */
1179 ret = b_isteq(buf, 0, b_data(buf), ist(H2_CONN_PREFACE));
Christopher Faulet6b81df72019-10-01 22:08:43 +02001180 if (ret > 0) {
Christopher Faulet0ef372a2019-04-08 10:57:20 +02001181 goto h2c_upgrade;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001182 }
Christopher Faulet0ef372a2019-04-08 10:57:20 +02001183 }
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001184 else {
1185 if (h1s->meth == HTTP_METH_CONNECT)
1186 h1m->flags |= H1_MF_METH_CONNECT;
1187 if (h1s->meth == HTTP_METH_HEAD)
1188 h1m->flags |= H1_MF_METH_HEAD;
1189 }
Christopher Faulet0ef372a2019-04-08 10:57:20 +02001190
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001191 ret = h1_parse_msg_hdrs(h1m, &h1sl, htx, buf, *ofs, max);
1192 if (!ret) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02001193 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 +02001194 if (htx->flags & HTX_FL_PARSING_ERROR) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02001195 if (!(h1m->flags & H1_MF_RESP)) {
1196 h1s->flags |= H1S_F_REQ_ERROR;
1197 TRACE_USER("rejected H1 request", H1_EV_RX_DATA|H1_EV_RX_HDRS|H1_EV_H1S_ERR, h1s->h1c->conn, h1s);
1198 }
1199 else {
1200 h1s->flags |= H1S_F_RES_ERROR;
1201 TRACE_USER("rejected H1 response", H1_EV_RX_DATA|H1_EV_RX_HDRS|H1_EV_H1S_ERR, h1s->h1c->conn, h1s);
1202 }
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001203 h1s->cs->flags |= CS_FL_EOI;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001204 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 +02001205 h1_capture_bad_message(h1s->h1c, h1s, h1m, buf);
1206 }
Christopher Faulet129817b2018-09-20 16:14:40 +02001207 goto end;
1208 }
1209
Christopher Faulet486498c2019-10-11 14:22:00 +02001210 if (h1m->err_pos >= 0) {
1211 /* Maybe we found an error during the parsing while we were
1212 * configured not to block on that, so we have to capture it
1213 * now.
1214 */
1215 TRACE_STATE("Ignored parsing error", H1_EV_RX_DATA|H1_EV_RX_HDRS, h1s->h1c->conn, h1s);
1216 h1_capture_bad_message(h1s->h1c, h1s, h1m, buf);
1217 }
1218
Christopher Faulet129817b2018-09-20 16:14:40 +02001219 if (!(h1m->flags & H1_MF_RESP)) {
Christopher Fauletf1ba18d2018-11-26 21:37:08 +01001220 h1s->meth = h1sl.rq.meth;
Christopher Fauletf3158e92019-11-15 11:14:23 +01001221 if (h1m->state == H1_MSG_TUNNEL)
Christopher Fauletc62c2b92019-03-28 11:41:39 +01001222 h1_set_req_tunnel_mode(h1s);
Christopher Faulet129817b2018-09-20 16:14:40 +02001223 }
1224 else {
Christopher Fauletf1ba18d2018-11-26 21:37:08 +01001225 h1s->status = h1sl.st.status;
Christopher Fauletf3158e92019-11-15 11:14:23 +01001226 if (h1m->state == H1_MSG_TUNNEL)
Christopher Fauletc62c2b92019-03-28 11:41:39 +01001227 h1_set_res_tunnel_mode(h1s);
Christopher Fauletf1ba18d2018-11-26 21:37:08 +01001228 }
Christopher Fauletb992af02019-03-28 15:42:24 +01001229 h1_process_input_conn_mode(h1s, h1m, htx);
Christopher Faulet9768c262018-10-22 09:34:31 +02001230 *ofs += ret;
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001231
Christopher Faulet129817b2018-09-20 16:14:40 +02001232 end:
Christopher Faulet6b81df72019-10-01 22:08:43 +02001233 TRACE_LEAVE(H1_EV_RX_DATA|H1_EV_RX_HDRS, h1s->h1c->conn, h1s,, (size_t[]){ret});
Christopher Faulet129817b2018-09-20 16:14:40 +02001234 return ret;
Christopher Fauletf2824e62018-10-01 12:12:37 +02001235
Christopher Faulet0ef372a2019-04-08 10:57:20 +02001236 h2c_upgrade:
1237 h1s->h1c->flags |= H1C_F_UPG_H2C;
Christopher Faulet8e9e3ef2019-05-17 09:14:10 +02001238 h1s->cs->flags |= CS_FL_EOI;
Christopher Faulet0ef372a2019-04-08 10:57:20 +02001239 htx->flags |= HTX_FL_UPGRADE;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001240 TRACE_DEVEL("leaving on H2 update", H1_EV_RX_DATA|H1_EV_RX_HDRS|H1_EV_RX_EOI, h1s->h1c->conn, h1s);
1241 return 0;
Christopher Faulet129817b2018-09-20 16:14:40 +02001242}
1243
1244/*
Christopher Fauletf2824e62018-10-01 12:12:37 +02001245 * Parse HTTP/1 body. It returns the number of bytes parsed if > 0, or 0 if it
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001246 * couldn't proceed. Parsing errors are reported by setting H1S_F_*_ERROR flag.
1247 * If relies on the function http_parse_msg_data() to do the parsing.
Christopher Faulet129817b2018-09-20 16:14:40 +02001248 */
Christopher Fauletaf542632019-10-01 21:52:49 +02001249static size_t h1_process_data(struct h1s *h1s, struct h1m *h1m, struct htx **htx,
Christopher Fauletaa75b3d2018-12-05 16:20:40 +01001250 struct buffer *buf, size_t *ofs, size_t max,
Christopher Faulet30db3d72019-05-17 15:35:33 +02001251 struct buffer *htxbuf)
Christopher Faulet129817b2018-09-20 16:14:40 +02001252{
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001253 int ret;
Christopher Faulet30db3d72019-05-17 15:35:33 +02001254
Christopher Faulet6b81df72019-10-01 22:08:43 +02001255 TRACE_ENTER(H1_EV_RX_DATA|H1_EV_RX_BODY, h1s->h1c->conn, h1s,, (size_t[]){max});
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001256 ret = h1_parse_msg_data(h1m, htx, buf, *ofs, max, htxbuf);
Christopher Faulet02a02532019-11-15 09:36:28 +01001257 if (!ret) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02001258 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 +01001259 if ((*htx)->flags & HTX_FL_PARSING_ERROR) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02001260 if (!(h1m->flags & H1_MF_RESP)) {
1261 h1s->flags |= H1S_F_REQ_ERROR;
1262 TRACE_USER("rejected H1 request", H1_EV_RX_DATA|H1_EV_RX_BODY|H1_EV_H1S_ERR, h1s->h1c->conn, h1s);
1263 }
1264 else {
1265 h1s->flags |= H1S_F_RES_ERROR;
1266 TRACE_USER("rejected H1 response", H1_EV_RX_DATA|H1_EV_RX_BODY|H1_EV_H1S_ERR, h1s->h1c->conn, h1s);
1267 }
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001268 h1s->cs->flags |= CS_FL_EOI;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001269 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 +02001270 h1_capture_bad_message(h1s->h1c, h1s, h1m, buf);
Christopher Faulet9768c262018-10-22 09:34:31 +02001271 }
Christopher Faulet02a02532019-11-15 09:36:28 +01001272 goto end;
Christopher Faulet129817b2018-09-20 16:14:40 +02001273 }
1274
Christopher Faulet02a02532019-11-15 09:36:28 +01001275 *ofs += ret;
1276
1277 end:
Christopher Faulet6b81df72019-10-01 22:08:43 +02001278 if (h1m->state == H1_MSG_DONE) {
Christopher Fauletb75b5ea2019-05-17 08:37:28 +02001279 h1s->cs->flags |= CS_FL_EOI;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001280 TRACE_STATE("end of message", H1_EV_RX_DATA|H1_EV_RX_BODY|H1_EV_RX_EOI, h1s->h1c->conn);
1281 }
1282
Christopher Faulet6b81df72019-10-01 22:08:43 +02001283 TRACE_LEAVE(H1_EV_RX_DATA|H1_EV_RX_BODY, h1s->h1c->conn, h1s,, (size_t[]){ret});
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001284 return ret;
Christopher Faulet129817b2018-09-20 16:14:40 +02001285}
1286
1287/*
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001288 * Parse HTTP/1 trailers. It returns the number of bytes parsed if > 0, or 0 if
1289 * it couldn't proceed. Parsing errors are reported by setting H1S_F_*_ERROR
1290 * flag and filling h1s->err_pos and h1s->err_state fields. This functions is
1291 * responsible to update the parser state <h1m>.
1292 */
1293static size_t h1_process_trailers(struct h1s *h1s, struct h1m *h1m, struct htx *htx,
1294 struct buffer *buf, size_t *ofs, size_t max)
1295{
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001296 int ret;
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001297
Christopher Faulet6b81df72019-10-01 22:08:43 +02001298 TRACE_ENTER(H1_EV_RX_DATA|H1_EV_RX_TLRS, h1s->h1c->conn, h1s,, (size_t[]){max});
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001299 ret = h1_parse_msg_tlrs(h1m, htx, buf, *ofs, max);
Christopher Faulet02a02532019-11-15 09:36:28 +01001300 if (!ret) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02001301 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 +01001302 if (htx->flags & HTX_FL_PARSING_ERROR) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02001303 if (!(h1m->flags & H1_MF_RESP)) {
1304 h1s->flags |= H1S_F_REQ_ERROR;
1305 TRACE_USER("rejected H1 request", H1_EV_RX_DATA|H1_EV_RX_TLRS|H1_EV_H1S_ERR, h1s->h1c->conn, h1s);
1306 }
1307 else {
1308 h1s->flags |= H1S_F_RES_ERROR;
1309 TRACE_USER("rejected H1 response", H1_EV_RX_DATA|H1_EV_RX_TLRS|H1_EV_H1S_ERR, h1s->h1c->conn, h1s);
1310 }
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001311 h1s->cs->flags |= CS_FL_EOI;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001312 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 +02001313 h1_capture_bad_message(h1s->h1c, h1s, h1m, buf);
1314 }
Christopher Faulet02a02532019-11-15 09:36:28 +01001315 goto end;
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001316 }
Christopher Faulet6b81df72019-10-01 22:08:43 +02001317
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001318 *ofs += ret;
1319 h1s->flags |= H1S_F_HAVE_I_TLR;
Christopher Faulet02a02532019-11-15 09:36:28 +01001320
1321 end:
Christopher Faulet6b81df72019-10-01 22:08:43 +02001322 TRACE_LEAVE(H1_EV_RX_DATA|H1_EV_RX_TLRS, h1s->h1c->conn, h1s,, (size_t[]){ret});
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001323 return ret;
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001324}
1325
1326/*
1327 * Add the EOM in the HTX message and switch the message to the DONE state. It
1328 * returns the number of bytes parsed if > 0, or 0 if iet couldn't proceed. This
1329 * functions is responsible to update the parser state <h1m>. It also add the
1330 * flag CS_FL_EOI on the CS.
1331 */
1332static size_t h1_process_eom(struct h1s *h1s, struct h1m *h1m, struct htx *htx, size_t max)
1333{
Christopher Faulet6b81df72019-10-01 22:08:43 +02001334 TRACE_ENTER(H1_EV_RX_DATA, h1s->h1c->conn, h1s,, (size_t[]){max});
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001335 if (max < sizeof(struct htx_blk) + 1 || !htx_add_endof(htx, HTX_BLK_EOM)) {
1336 h1s->flags |= H1S_F_APPEND_EOM;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001337 TRACE_STATE("leaving on append_eom", H1_EV_RX_DATA, h1s->h1c->conn);
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001338 return 0;
1339 }
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001340
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001341 h1s->flags &= ~H1S_F_APPEND_EOM;
1342 h1m->state = H1_MSG_DONE;
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001343 h1s->cs->flags |= CS_FL_EOI;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001344 TRACE_STATE("end of message", H1_EV_RX_DATA|H1_EV_RX_EOI, h1s->h1c->conn, h1s);
1345 TRACE_LEAVE(H1_EV_RX_DATA, h1s->h1c->conn, h1s);
Christopher Faulet4f0f88a2019-08-10 11:17:44 +02001346 return (sizeof(struct htx_blk) + 1);
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001347}
1348
1349/*
Christopher Faulet129817b2018-09-20 16:14:40 +02001350 * Process incoming data. It parses data and transfer them from h1c->ibuf into
Christopher Faulet539e0292018-11-19 10:40:09 +01001351 * <buf>. It returns the number of bytes parsed and transferred if > 0, or 0 if
1352 * it couldn't proceed.
Christopher Faulet129817b2018-09-20 16:14:40 +02001353 */
Christopher Faulet30db3d72019-05-17 15:35:33 +02001354static size_t h1_process_input(struct h1c *h1c, struct buffer *buf, size_t count)
Christopher Faulet51dbc942018-09-13 09:05:15 +02001355{
Christopher Faulet539e0292018-11-19 10:40:09 +01001356 struct h1s *h1s = h1c->h1s;
Christopher Faulet129817b2018-09-20 16:14:40 +02001357 struct h1m *h1m;
Christopher Faulet9768c262018-10-22 09:34:31 +02001358 struct htx *htx;
Christopher Faulet30db3d72019-05-17 15:35:33 +02001359 size_t ret, data;
Christopher Faulet129817b2018-09-20 16:14:40 +02001360 size_t total = 0;
Christopher Fauletf2824e62018-10-01 12:12:37 +02001361 int errflag;
Christopher Faulet51dbc942018-09-13 09:05:15 +02001362
Christopher Faulet539e0292018-11-19 10:40:09 +01001363 htx = htx_from_buf(buf);
Christopher Faulet6b81df72019-10-01 22:08:43 +02001364 TRACE_ENTER(H1_EV_RX_DATA, h1c->conn, h1s, htx, (size_t[]){count});
Willy Tarreau3a6190f2018-12-16 08:29:56 +01001365
Christopher Fauletf2824e62018-10-01 12:12:37 +02001366 if (!conn_is_back(h1c->conn)) {
1367 h1m = &h1s->req;
1368 errflag = H1S_F_REQ_ERROR;
1369 }
1370 else {
1371 h1m = &h1s->res;
1372 errflag = H1S_F_RES_ERROR;
1373 }
Christopher Faulet9768c262018-10-22 09:34:31 +02001374
Christopher Faulet74027762019-02-26 14:45:05 +01001375 data = htx->data;
Christopher Faulet0e54d542019-07-04 21:22:34 +02001376 if (h1s->flags & errflag)
1377 goto end;
1378
Christopher Fauletd44ad5b2018-11-19 21:52:12 +01001379 do {
Christopher Faulet30db3d72019-05-17 15:35:33 +02001380 size_t used = htx_used_space(htx);
1381
Christopher Faulet129817b2018-09-20 16:14:40 +02001382 if (h1m->state <= H1_MSG_LAST_LF) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02001383 TRACE_PROTO("parsing message headers", H1_EV_RX_DATA|H1_EV_RX_HDRS, h1c->conn, h1s);
Christopher Faulet539e0292018-11-19 10:40:09 +01001384 ret = h1_process_headers(h1s, h1m, htx, &h1c->ibuf, &total, count);
Christopher Faulet129817b2018-09-20 16:14:40 +02001385 if (!ret)
1386 break;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001387
1388 TRACE_USER((!(h1m->flags & H1_MF_RESP) ? "rcvd H1 request headers" : "rcvd H1 response headers"),
1389 H1_EV_RX_DATA|H1_EV_RX_HDRS, h1c->conn, h1s, htx, (size_t[]){ret});
1390
Christopher Fauletb75b5ea2019-05-17 08:37:28 +02001391 if ((h1m->flags & H1_MF_RESP) &&
1392 h1s->status < 200 && (h1s->status == 100 || h1s->status >= 102)) {
1393 h1m_init_res(&h1s->res);
1394 h1m->flags |= (H1_MF_NO_PHDR|H1_MF_CLEAN_CONN_HDR);
Christopher Faulet6b81df72019-10-01 22:08:43 +02001395 TRACE_STATE("1xx response rcvd", H1_EV_RX_DATA|H1_EV_RX_HDRS, h1c->conn, h1s);
Christopher Fauletb75b5ea2019-05-17 08:37:28 +02001396 }
Christopher Faulet129817b2018-09-20 16:14:40 +02001397 }
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001398 else if (h1m->state < H1_MSG_TRAILERS) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02001399 TRACE_PROTO("parsing message payload", H1_EV_RX_DATA|H1_EV_RX_BODY, h1c->conn, h1s);
Christopher Fauletaf542632019-10-01 21:52:49 +02001400 ret = h1_process_data(h1s, h1m, &htx, &h1c->ibuf, &total, count, buf);
Christopher Faulet129817b2018-09-20 16:14:40 +02001401 if (!ret)
1402 break;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001403
1404 TRACE_PROTO((!(h1m->flags & H1_MF_RESP) ? "rcvd H1 request payload data" : "rcvd H1 response payload data"),
1405 H1_EV_RX_DATA|H1_EV_RX_BODY, h1c->conn, h1s, htx, (size_t[]){ret});
1406
1407 if (h1m->state == H1_MSG_DONE)
1408 TRACE_USER((!(h1m->flags & H1_MF_RESP) ? "H1 request fully rcvd" : "H1 response fully rcvd"),
1409 H1_EV_RX_DATA, h1c->conn, h1s, htx);
Christopher Faulet129817b2018-09-20 16:14:40 +02001410 }
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001411 else if (h1m->state == H1_MSG_TRAILERS) {
1412 if (!(h1s->flags & H1S_F_HAVE_I_TLR)) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02001413 TRACE_PROTO("parsing message trailers", H1_EV_RX_DATA|H1_EV_RX_TLRS, h1c->conn, h1s);
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001414 ret = h1_process_trailers(h1s, h1m, htx, &h1c->ibuf, &total, count);
1415 if (!ret)
1416 break;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001417
1418 TRACE_PROTO((!(h1m->flags & H1_MF_RESP) ? "rcvd H1 request trailers" : "rcvd H1 response trailers"),
1419 H1_EV_RX_DATA|H1_EV_RX_TLRS, h1c->conn, h1s, htx, (size_t[]){ret});
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001420 }
Christopher Fauletf1ef7f62019-09-03 21:55:14 +02001421 else if (!h1_process_eom(h1s, h1m, htx, count))
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001422 break;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001423
1424 TRACE_USER((!(h1m->flags & H1_MF_RESP) ? "H1 request fully rcvd" : "H1 response fully rcvd"),
1425 H1_EV_RX_DATA|H1_EV_RX_EOI, h1c->conn, h1s, htx);
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001426 }
Christopher Fauletcb55f482018-12-10 11:56:47 +01001427 else if (h1m->state == H1_MSG_DONE) {
Christopher Fauletf3158e92019-11-15 11:14:23 +01001428 if (!(h1m->flags & H1_MF_RESP) && h1s->status == 101)
1429 h1_set_req_tunnel_mode(h1s);
1430 else if (h1s->req.state < H1_MSG_DONE || h1s->res.state < H1_MSG_DONE) {
Christopher Faulet2f320ee2019-04-16 20:26:53 +02001431 h1c->flags |= H1C_F_IN_BUSY;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001432 TRACE_STATE("switch h1c in busy mode", H1_EV_RX_DATA|H1_EV_H1C_BLK, h1c->conn, h1s);
1433 }
Christopher Fauletf2824e62018-10-01 12:12:37 +02001434 break;
Christopher Fauletcb55f482018-12-10 11:56:47 +01001435 }
Christopher Fauletf2824e62018-10-01 12:12:37 +02001436 else if (h1m->state == H1_MSG_TUNNEL) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02001437 TRACE_PROTO("parsing tunneled data", H1_EV_RX_DATA, h1c->conn, h1s);
Christopher Fauletaf542632019-10-01 21:52:49 +02001438 ret = h1_process_data(h1s, h1m, &htx, &h1c->ibuf, &total, count, buf);
Christopher Faulet9768c262018-10-22 09:34:31 +02001439 if (!ret)
1440 break;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001441
1442 TRACE_PROTO((!(h1m->flags & H1_MF_RESP) ? "rcvd H1 request tunneled data" : "rcvd H1 response tunneled data"),
1443 H1_EV_RX_DATA|H1_EV_RX_EOI, h1c->conn, h1s, htx, (size_t[]){ret});
Christopher Fauletf2824e62018-10-01 12:12:37 +02001444 }
Christopher Faulet129817b2018-09-20 16:14:40 +02001445 else {
Christopher Fauletf2824e62018-10-01 12:12:37 +02001446 h1s->flags |= errflag;
Christopher Faulet129817b2018-09-20 16:14:40 +02001447 break;
1448 }
1449
Christopher Faulet30db3d72019-05-17 15:35:33 +02001450 count -= htx_used_space(htx) - used;
Christopher Faulet6b321922019-09-03 16:26:15 +02001451 } while (!(h1s->flags & errflag));
Christopher Faulet129817b2018-09-20 16:14:40 +02001452
Christopher Faulet6b81df72019-10-01 22:08:43 +02001453 if (h1s->flags & errflag) {
1454 TRACE_PROTO("parsing error", H1_EV_RX_DATA, h1c->conn, h1s);
Christopher Faulet47365272018-10-31 17:40:50 +01001455 goto parsing_err;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001456 }
Christopher Faulet129817b2018-09-20 16:14:40 +02001457
Christopher Faulet539e0292018-11-19 10:40:09 +01001458 b_del(&h1c->ibuf, total);
1459
1460 end:
Christopher Faulet27ba2dc2018-12-05 11:53:24 +01001461 htx_to_buf(htx, buf);
Christopher Faulet30db3d72019-05-17 15:35:33 +02001462 ret = htx->data - data;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001463 if ((h1c->flags & H1C_F_IN_FULL) && buf_room_for_htx_data(&h1c->ibuf)) {
Christopher Faulet539e0292018-11-19 10:40:09 +01001464 h1c->flags &= ~H1C_F_IN_FULL;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001465 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 +02001466 tasklet_wakeup(h1c->wait_event.tasklet);
Christopher Faulet47365272018-10-31 17:40:50 +01001467 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02001468
Christopher Fauletcf56b992018-12-11 16:12:31 +01001469 h1s->cs->flags &= ~(CS_FL_RCV_MORE | CS_FL_WANT_ROOM);
1470
Christopher Fauletcdc90e92019-03-28 13:28:46 +01001471 if (!b_data(&h1c->ibuf))
Christopher Faulet539e0292018-11-19 10:40:09 +01001472 h1_release_buf(h1c, &h1c->ibuf);
Willy Tarreaufbdf90a2019-06-03 13:42:54 +02001473 else if (h1s_data_pending(h1s) && !htx_is_empty(htx))
Christopher Fauletcf56b992018-12-11 16:12:31 +01001474 h1s->cs->flags |= CS_FL_RCV_MORE | CS_FL_WANT_ROOM;
Christopher Faulet539e0292018-11-19 10:40:09 +01001475
Willy Tarreau0bb5a5c2019-08-23 09:29:29 +02001476 if (((h1s->flags & (H1S_F_REOS|H1S_F_APPEND_EOM)) == H1S_F_REOS) &&
1477 (!h1s_data_pending(h1s) || htx_is_empty(htx))) {
Christopher Fauletf6ce9d62018-12-10 15:30:06 +01001478 h1s->cs->flags |= CS_FL_EOS;
Christopher Faulet466080d2019-11-15 09:50:22 +01001479 if (h1m->state == H1_MSG_TUNNEL)
1480 h1s->cs->flags |= CS_FL_EOI;
1481 else if (h1m->state > H1_MSG_LAST_LF && h1m->state < H1_MSG_DONE)
Christopher Fauletb8d2ee02019-02-25 15:29:51 +01001482 h1s->cs->flags |= CS_FL_ERROR;
Christopher Faulet539e0292018-11-19 10:40:09 +01001483 }
Christopher Fauletf6ce9d62018-12-10 15:30:06 +01001484
Christopher Faulet6b81df72019-10-01 22:08:43 +02001485 TRACE_LEAVE(H1_EV_RX_DATA, h1c->conn, h1s, htx, (size_t[]){ret});
Christopher Faulet30db3d72019-05-17 15:35:33 +02001486 return ret;
Christopher Faulet47365272018-10-31 17:40:50 +01001487
1488 parsing_err:
Christopher Faulet47365272018-10-31 17:40:50 +01001489 b_reset(&h1c->ibuf);
Christopher Faulet27ba2dc2018-12-05 11:53:24 +01001490 htx_to_buf(htx, buf);
Christopher Faulet6b81df72019-10-01 22:08:43 +02001491 TRACE_DEVEL("leaving on error", H1_EV_RX_DATA|H1_EV_STRM_ERR, h1c->conn, h1s);
Christopher Faulet9768c262018-10-22 09:34:31 +02001492 return 0;
Christopher Faulet51dbc942018-09-13 09:05:15 +02001493}
1494
Christopher Faulet129817b2018-09-20 16:14:40 +02001495/*
1496 * Process outgoing data. It parses data and transfer them from the channel buffer into
1497 * h1c->obuf. It returns the number of bytes parsed and transferred if > 0, or
1498 * 0 if it couldn't proceed.
1499 */
Christopher Faulet51dbc942018-09-13 09:05:15 +02001500static size_t h1_process_output(struct h1c *h1c, struct buffer *buf, size_t count)
1501{
Christopher Faulet129817b2018-09-20 16:14:40 +02001502 struct h1s *h1s = h1c->h1s;
1503 struct h1m *h1m;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001504 struct htx *chn_htx = NULL;
Christopher Faulet9768c262018-10-22 09:34:31 +02001505 struct htx_blk *blk;
Christopher Fauletc2518a52019-06-25 21:41:02 +02001506 struct buffer tmp;
Christopher Faulet129817b2018-09-20 16:14:40 +02001507 size_t total = 0;
Christopher Fauletf2824e62018-10-01 12:12:37 +02001508 int errflag;
Christopher Faulet51dbc942018-09-13 09:05:15 +02001509
Christopher Faulet47365272018-10-31 17:40:50 +01001510 if (!count)
1511 goto end;
Willy Tarreau37dd54d2018-12-15 14:48:31 +01001512
Christopher Faulet94b2c762019-05-24 15:28:57 +02001513 chn_htx = htxbuf(buf);
Christopher Faulet6b81df72019-10-01 22:08:43 +02001514 TRACE_ENTER(H1_EV_TX_DATA, h1c->conn, h1s, chn_htx, (size_t[]){count});
1515
Willy Tarreau37dd54d2018-12-15 14:48:31 +01001516 if (htx_is_empty(chn_htx))
1517 goto end;
Christopher Faulet9768c262018-10-22 09:34:31 +02001518
Christopher Faulet51dbc942018-09-13 09:05:15 +02001519 if (!h1_get_buf(h1c, &h1c->obuf)) {
1520 h1c->flags |= H1C_F_OUT_ALLOC;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001521 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 +02001522 goto end;
1523 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02001524
Christopher Fauletf2824e62018-10-01 12:12:37 +02001525 if (!conn_is_back(h1c->conn)) {
1526 h1m = &h1s->res;
1527 errflag = H1S_F_RES_ERROR;
1528 }
1529 else {
1530 h1m = &h1s->req;
1531 errflag = H1S_F_REQ_ERROR;
1532 }
Christopher Faulet9768c262018-10-22 09:34:31 +02001533
Christopher Faulet0e54d542019-07-04 21:22:34 +02001534 if (h1s->flags & errflag)
1535 goto end;
1536
Willy Tarreau37dd54d2018-12-15 14:48:31 +01001537 /* the htx is non-empty thus has at least one block */
Willy Tarreau3815b222018-12-11 19:50:43 +01001538 blk = htx_get_head_blk(chn_htx);
Christopher Faulet9768c262018-10-22 09:34:31 +02001539
Willy Tarreau3815b222018-12-11 19:50:43 +01001540 /* Perform some optimizations to reduce the number of buffer copies.
1541 * First, if the mux's buffer is empty and the htx area contains
1542 * exactly one data block of the same size as the requested count,
1543 * then it's possible to simply swap the caller's buffer with the
1544 * mux's output buffer and adjust offsets and length to match the
1545 * entire DATA HTX block in the middle. In this case we perform a
1546 * true zero-copy operation from end-to-end. This is the situation
1547 * that happens all the time with large files. Second, if this is not
1548 * possible, but the mux's output buffer is empty, we still have an
1549 * opportunity to avoid the copy to the intermediary buffer, by making
1550 * the intermediary buffer's area point to the output buffer's area.
1551 * In this case we want to skip the HTX header to make sure that copies
1552 * remain aligned and that this operation remains possible all the
1553 * time. This goes for headers, data blocks and any data extracted from
1554 * the HTX blocks.
Willy Tarreauc5efa332018-12-05 11:19:27 +01001555 */
1556 if (!b_data(&h1c->obuf)) {
Christopher Faulet192c6a22019-06-11 16:32:24 +02001557 if (htx_nbblks(chn_htx) == 1 &&
Willy Tarreau37dd54d2018-12-15 14:48:31 +01001558 htx_get_blk_type(blk) == HTX_BLK_DATA &&
Willy Tarreau3815b222018-12-11 19:50:43 +01001559 htx_get_blk_value(chn_htx, blk).len == count) {
1560 void *old_area = h1c->obuf.area;
1561
Christopher Faulet6b81df72019-10-01 22:08:43 +02001562 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 +01001563 h1c->obuf.area = buf->area;
Christopher Fauletc2518a52019-06-25 21:41:02 +02001564 h1c->obuf.head = sizeof(struct htx) + blk->addr;
Willy Tarreau3815b222018-12-11 19:50:43 +01001565 h1c->obuf.data = count;
1566
1567 buf->area = old_area;
1568 buf->data = buf->head = 0;
Christopher Fauletadb22202018-12-12 10:32:09 +01001569
Christopher Faulet6b81df72019-10-01 22:08:43 +02001570 chn_htx = (struct htx *)buf->area;
1571 htx_reset(chn_htx);
1572
Christopher Fauletadb22202018-12-12 10:32:09 +01001573 /* The message is chunked. We need to emit the chunk
1574 * size. We have at least the size of the struct htx to
1575 * write the chunk envelope. It should be enough.
1576 */
1577 if (h1m->flags & H1_MF_CHNK) {
1578 h1_emit_chunk_size(&h1c->obuf, count);
1579 h1_emit_chunk_crlf(&h1c->obuf);
1580 }
1581
Willy Tarreau3815b222018-12-11 19:50:43 +01001582 total += count;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001583 if (h1m->state == H1_MSG_DATA)
1584 TRACE_PROTO((!(h1m->flags & H1_MF_RESP) ? "H1 request payload data xferred" : "H1 response payload data xferred"),
Christopher Faulet08618a72019-10-08 11:59:47 +02001585 H1_EV_TX_DATA|H1_EV_TX_BODY, h1c->conn, h1s,, (size_t[]){count});
Christopher Faulet6b81df72019-10-01 22:08:43 +02001586 else
1587 TRACE_PROTO((!(h1m->flags & H1_MF_RESP) ? "H1 request tunneled data xferred" : "H1 response tunneled data xferred"),
Christopher Faulet08618a72019-10-08 11:59:47 +02001588 H1_EV_TX_DATA|H1_EV_TX_BODY, h1c->conn, h1s,, (size_t[]){count});
Willy Tarreau3815b222018-12-11 19:50:43 +01001589 goto out;
1590 }
Christopher Fauletc2518a52019-06-25 21:41:02 +02001591 tmp.area = h1c->obuf.area + h1c->obuf.head;
Willy Tarreauc5efa332018-12-05 11:19:27 +01001592 }
Christopher Fauletc2518a52019-06-25 21:41:02 +02001593 else
1594 tmp.area = trash.area;
Christopher Faulet9768c262018-10-22 09:34:31 +02001595
Christopher Fauletc2518a52019-06-25 21:41:02 +02001596 tmp.data = 0;
1597 tmp.size = b_room(&h1c->obuf);
Christopher Fauletb2e84162018-12-06 11:39:49 +01001598 while (count && !(h1s->flags & errflag) && blk) {
Christopher Faulet570d1612018-11-26 11:13:57 +01001599 struct htx_sl *sl;
Christopher Faulet9768c262018-10-22 09:34:31 +02001600 struct ist n, v;
Christopher Fauletb2e84162018-12-06 11:39:49 +01001601 enum htx_blk_type type = htx_get_blk_type(blk);
Christopher Faulet9768c262018-10-22 09:34:31 +02001602 uint32_t sz = htx_get_blksz(blk);
Christopher Fauletd9233f02019-10-14 14:01:24 +02001603 uint32_t vlen, chklen;
Christopher Faulet9768c262018-10-22 09:34:31 +02001604
Christopher Fauletb2e84162018-12-06 11:39:49 +01001605 vlen = sz;
Christopher Fauletd9233f02019-10-14 14:01:24 +02001606 if (type != HTX_BLK_DATA && vlen > count)
1607 goto full;
Christopher Faulet9768c262018-10-22 09:34:31 +02001608
Christopher Faulet94b2c762019-05-24 15:28:57 +02001609 if (type == HTX_BLK_UNUSED)
1610 goto nextblk;
Christopher Faulet9768c262018-10-22 09:34:31 +02001611
Christopher Faulet94b2c762019-05-24 15:28:57 +02001612 switch (h1m->state) {
1613 case H1_MSG_RQBEFORE:
1614 if (type != HTX_BLK_REQ_SL)
1615 goto error;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001616 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 +02001617 sl = htx_get_blk_ptr(chn_htx, blk);
Christopher Faulet570d1612018-11-26 11:13:57 +01001618 h1s->meth = sl->info.req.meth;
Christopher Faulet9768c262018-10-22 09:34:31 +02001619 h1_parse_req_vsn(h1m, sl);
Christopher Faulet53a899b2019-10-08 16:38:42 +02001620 if (!h1_format_htx_reqline(sl, &tmp))
Christopher Fauleta61aa542019-10-14 14:17:00 +02001621 goto full;
Christopher Faulet9768c262018-10-22 09:34:31 +02001622 h1m->flags |= H1_MF_XFER_LEN;
Christopher Faulet1f890dd2019-02-18 10:33:16 +01001623 if (sl->flags & HTX_SL_F_BODYLESS)
1624 h1m->flags |= H1_MF_CLEN;
Christopher Faulet9768c262018-10-22 09:34:31 +02001625 h1m->state = H1_MSG_HDR_FIRST;
Christopher Faulet129817b2018-09-20 16:14:40 +02001626 break;
Christopher Faulet129817b2018-09-20 16:14:40 +02001627
Christopher Faulet94b2c762019-05-24 15:28:57 +02001628 case H1_MSG_RPBEFORE:
1629 if (type != HTX_BLK_RES_SL)
1630 goto error;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001631 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 +02001632 sl = htx_get_blk_ptr(chn_htx, blk);
Christopher Faulet570d1612018-11-26 11:13:57 +01001633 h1s->status = sl->info.res.status;
Christopher Faulet9768c262018-10-22 09:34:31 +02001634 h1_parse_res_vsn(h1m, sl);
Christopher Faulet53a899b2019-10-08 16:38:42 +02001635 if (!h1_format_htx_stline(sl, &tmp))
Christopher Fauleta61aa542019-10-14 14:17:00 +02001636 goto full;
Christopher Faulet03599112018-11-27 11:21:21 +01001637 if (sl->flags & HTX_SL_F_XFER_LEN)
Christopher Faulet9768c262018-10-22 09:34:31 +02001638 h1m->flags |= H1_MF_XFER_LEN;
Christopher Fauletd1ebb1e2018-11-28 16:32:50 +01001639 if (sl->info.res.status < 200 &&
1640 (sl->info.res.status == 100 || sl->info.res.status >= 102))
Christopher Fauletada34b62019-05-24 16:36:43 +02001641 h1s->flags |= H1S_F_HAVE_O_CONN;
Christopher Faulet9768c262018-10-22 09:34:31 +02001642 h1m->state = H1_MSG_HDR_FIRST;
1643 break;
1644
Christopher Faulet94b2c762019-05-24 15:28:57 +02001645 case H1_MSG_HDR_FIRST:
1646 case H1_MSG_HDR_NAME:
1647 case H1_MSG_HDR_L2_LWS:
1648 if (type == HTX_BLK_EOH)
1649 goto last_lf;
1650 if (type != HTX_BLK_HDR)
1651 goto error;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001652
Christopher Faulet9768c262018-10-22 09:34:31 +02001653 h1m->state = H1_MSG_HDR_NAME;
1654 n = htx_get_blk_name(chn_htx, blk);
1655 v = htx_get_blk_value(chn_htx, blk);
1656
Christopher Faulet86d144c2019-08-14 16:32:25 +02001657 /* Skip all pseudo-headers */
1658 if (*(n.ptr) == ':')
1659 goto skip_hdr;
1660
Christopher Faulet9768c262018-10-22 09:34:31 +02001661 if (isteqi(n, ist("transfer-encoding")))
1662 h1_parse_xfer_enc_header(h1m, v);
Willy Tarreau27cd2232019-01-03 21:52:42 +01001663 else if (isteqi(n, ist("content-length"))) {
Christopher Faulet5220ef22019-03-27 15:44:56 +01001664 /* Only skip C-L header with invalid value. */
1665 if (h1_parse_cont_len_header(h1m, &v) < 0)
Willy Tarreau27cd2232019-01-03 21:52:42 +01001666 goto skip_hdr;
1667 }
Christopher Faulet9768c262018-10-22 09:34:31 +02001668 else if (isteqi(n, ist("connection"))) {
Christopher Fauletb992af02019-03-28 15:42:24 +01001669 h1_parse_connection_header(h1m, &v);
Christopher Faulet9768c262018-10-22 09:34:31 +02001670 if (!v.len)
1671 goto skip_hdr;
1672 }
1673
Christopher Faulet67d58092019-10-02 10:51:38 +02001674 /* Skip header if same name is used to add the server name */
1675 if (!(h1m->flags & H1_MF_RESP) && h1c->px->server_id_hdr_name &&
1676 isteqi(n, ist2(h1c->px->server_id_hdr_name, h1c->px->server_id_hdr_len)))
1677 goto skip_hdr;
1678
Christopher Faulet98fbe952019-07-22 16:18:24 +02001679 /* Try to adjust the case of the header name */
1680 if (h1c->px->options2 & (PR_O2_H1_ADJ_BUGCLI|PR_O2_H1_ADJ_BUGSRV))
1681 h1_adjust_case_outgoing_hdr(h1s, h1m, &n);
Christopher Faulet53a899b2019-10-08 16:38:42 +02001682 if (!h1_format_htx_hdr(n, v, &tmp))
Christopher Fauleta61aa542019-10-14 14:17:00 +02001683 goto full;
Christopher Faulet9768c262018-10-22 09:34:31 +02001684 skip_hdr:
1685 h1m->state = H1_MSG_HDR_L2_LWS;
1686 break;
1687
Christopher Faulet94b2c762019-05-24 15:28:57 +02001688 case H1_MSG_LAST_LF:
1689 if (type != HTX_BLK_EOH)
1690 goto error;
1691 last_lf:
Christopher Fauletada34b62019-05-24 16:36:43 +02001692 h1m->state = H1_MSG_LAST_LF;
1693 if (!(h1s->flags & H1S_F_HAVE_O_CONN)) {
Christopher Faulet04f89192019-10-16 09:41:07 +02001694 /* If the reply comes from haproxy while the request is
1695 * not finished, we force the connection close. */
1696 if ((chn_htx->flags & HTX_FL_PROXY_RESP) && h1s->req.state != H1_MSG_DONE) {
1697 h1s->flags = (h1s->flags & ~H1S_F_WANT_MSK) | H1S_F_WANT_CLO;
1698 TRACE_STATE("force close mode (resp)", H1_EV_TX_DATA|H1_EV_TX_HDRS, h1s->h1c->conn, h1s);
1699 }
1700
1701 /* the conn_mode must be processed. So do it */
Christopher Fauleta110ecb2019-06-17 14:07:46 +02001702 n = ist("connection");
Christopher Fauletd1ebb1e2018-11-28 16:32:50 +01001703 v = ist("");
Christopher Fauletb992af02019-03-28 15:42:24 +01001704 h1_process_output_conn_mode(h1s, h1m, &v);
Christopher Fauletd1ebb1e2018-11-28 16:32:50 +01001705 if (v.len) {
Christopher Faulet98fbe952019-07-22 16:18:24 +02001706 /* Try to adjust the case of the header name */
1707 if (h1c->px->options2 & (PR_O2_H1_ADJ_BUGCLI|PR_O2_H1_ADJ_BUGSRV))
1708 h1_adjust_case_outgoing_hdr(h1s, h1m, &n);
Christopher Faulet53a899b2019-10-08 16:38:42 +02001709 if (!h1_format_htx_hdr(n, v, &tmp))
Christopher Fauleta61aa542019-10-14 14:17:00 +02001710 goto full;
Christopher Fauletd1ebb1e2018-11-28 16:32:50 +01001711 }
Christopher Fauletada34b62019-05-24 16:36:43 +02001712 h1s->flags |= H1S_F_HAVE_O_CONN;
Christopher Fauletd1ebb1e2018-11-28 16:32:50 +01001713 }
Willy Tarreau4710d202019-01-03 17:39:54 +01001714
Christopher Fauletc62c2b92019-03-28 11:41:39 +01001715 if ((h1s->meth != HTTP_METH_CONNECT &&
1716 (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 +01001717 (H1_MF_VER_11|H1_MF_XFER_LEN)) ||
1718 (h1s->status >= 200 && h1s->status != 204 && h1s->status != 304 &&
1719 h1s->meth != HTTP_METH_HEAD && !(h1s->meth == HTTP_METH_CONNECT && h1s->status == 200) &&
1720 (h1m->flags & (H1_MF_VER_11|H1_MF_RESP|H1_MF_CLEN|H1_MF_CHNK|H1_MF_XFER_LEN)) ==
1721 (H1_MF_VER_11|H1_MF_RESP|H1_MF_XFER_LEN))) {
Willy Tarreau4710d202019-01-03 17:39:54 +01001722 /* chunking needed but header not seen */
Christopher Faulet7a991a92019-10-04 10:23:51 +02001723 n = ist("transfer-encoding");
1724 v = ist("chunked");
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 Faulet6b81df72019-10-01 22:08:43 +02001729 TRACE_STATE("add \"Transfer-Encoding: chunked\"", H1_EV_TX_DATA|H1_EV_TX_HDRS, h1c->conn, h1s);
Willy Tarreau4710d202019-01-03 17:39:54 +01001730 h1m->flags |= H1_MF_CHNK;
1731 }
1732
Christopher Faulet72ba6cd2019-09-24 16:20:05 +02001733 /* Now add the server name to a header (if requested) */
1734 if (!(h1s->flags & H1S_F_HAVE_SRV_NAME) &&
1735 !(h1m->flags & H1_MF_RESP) && h1c->px->server_id_hdr_name) {
1736 struct server *srv = objt_server(h1c->conn->target);
1737
1738 if (srv) {
1739 n = ist2(h1c->px->server_id_hdr_name, h1c->px->server_id_hdr_len);
1740 v = ist(srv->id);
Christopher Faulet5cef2a62019-10-02 11:06:13 +02001741
1742 /* Try to adjust the case of the header name */
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 Faulet72ba6cd2019-09-24 16:20:05 +02001747 }
Christopher Faulet6b81df72019-10-01 22:08:43 +02001748 TRACE_STATE("add server name header", H1_EV_TX_DATA|H1_EV_TX_HDRS, h1c->conn, h1s);
Christopher Faulet72ba6cd2019-09-24 16:20:05 +02001749 h1s->flags |= H1S_F_HAVE_SRV_NAME;
1750 }
1751
Christopher Fauletc2518a52019-06-25 21:41:02 +02001752 if (!chunk_memcat(&tmp, "\r\n", 2))
Christopher Fauleta61aa542019-10-14 14:17:00 +02001753 goto full;
Christopher Faulet9768c262018-10-22 09:34:31 +02001754
Christopher Faulet6b81df72019-10-01 22:08:43 +02001755 TRACE_PROTO((!(h1m->flags & H1_MF_RESP) ? "H1 request headers xferred" : "H1 response headers xferred"),
1756 H1_EV_TX_DATA|H1_EV_TX_HDRS, h1c->conn, h1s);
1757
Christopher Fauletc62c2b92019-03-28 11:41:39 +01001758 if (!(h1m->flags & H1_MF_RESP) && h1s->meth == HTTP_METH_CONNECT) {
1759 /* a CONNECT request is sent to the server. Switch it to tunnel mode. */
1760 h1_set_req_tunnel_mode(h1s);
1761 }
Christopher Fauletf3158e92019-11-15 11:14:23 +01001762 else if ((h1m->flags & H1_MF_RESP) &&
1763 ((h1s->meth == HTTP_METH_CONNECT && h1s->status == 200) || h1s->status == 101)) {
Christopher Fauletc62c2b92019-03-28 11:41:39 +01001764 /* a successfull reply to a CONNECT or a protocol switching is sent
Christopher Fauletf3158e92019-11-15 11:14:23 +01001765 * to the client. Switch the response to tunnel mode.
1766 */
Christopher Fauletc62c2b92019-03-28 11:41:39 +01001767 h1_set_res_tunnel_mode(h1s);
Christopher Faulet6b81df72019-10-01 22:08:43 +02001768 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 +01001769 }
Christopher Fauletb75b5ea2019-05-17 08:37:28 +02001770 else if ((h1m->flags & H1_MF_RESP) &&
1771 h1s->status < 200 && (h1s->status == 100 || h1s->status >= 102)) {
1772 h1m_init_res(&h1s->res);
1773 h1m->flags |= (H1_MF_NO_PHDR|H1_MF_CLEAN_CONN_HDR);
Christopher Fauletada34b62019-05-24 16:36:43 +02001774 h1s->flags &= ~H1S_F_HAVE_O_CONN;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001775 TRACE_STATE("1xx response xferred", H1_EV_TX_DATA|H1_EV_TX_HDRS, h1c->conn, h1s);
Christopher Fauletb75b5ea2019-05-17 08:37:28 +02001776 }
Christopher Faulet6b81df72019-10-01 22:08:43 +02001777 else if ((h1m->flags & H1_MF_RESP) && h1s->meth == HTTP_METH_HEAD) {
Christopher Fauletb8fc3042019-07-01 16:17:30 +02001778 h1m->state = H1_MSG_DONE;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001779 TRACE_STATE("HEAD response processed", H1_EV_TX_DATA|H1_EV_TX_HDRS, h1c->conn, h1s);
1780 }
Christopher Fauletc62c2b92019-03-28 11:41:39 +01001781 else
1782 h1m->state = H1_MSG_DATA;
Christopher Faulet9768c262018-10-22 09:34:31 +02001783 break;
1784
Christopher Faulet94b2c762019-05-24 15:28:57 +02001785 case H1_MSG_DATA:
Christopher Fauletf8db73e2019-07-04 17:12:12 +02001786 case H1_MSG_TUNNEL:
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001787 if (type == HTX_BLK_EOM) {
1788 /* Chunked message without explicit trailers */
1789 if (h1m->flags & H1_MF_CHNK) {
Christopher Fauletc2518a52019-06-25 21:41:02 +02001790 if (!chunk_memcat(&tmp, "0\r\n\r\n", 5))
Christopher Fauleta61aa542019-10-14 14:17:00 +02001791 goto full;
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001792 }
1793 goto done;
1794 }
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001795 else if (type == HTX_BLK_EOT || type == HTX_BLK_TLR) {
Christopher Faulet5433a0b2019-06-27 17:40:14 +02001796 /* If the message is not chunked, never
1797 * add the last chunk. */
1798 if ((h1m->flags & H1_MF_CHNK) && !chunk_memcat(&tmp, "0\r\n", 3))
Christopher Fauleta61aa542019-10-14 14:17:00 +02001799 goto full;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001800 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 +02001801 goto trailers;
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001802 }
Christopher Faulet94b2c762019-05-24 15:28:57 +02001803 else if (type != HTX_BLK_DATA)
1804 goto error;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001805
1806 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 +02001807
1808
1809 if (vlen > count) {
1810 /* Get the maximum amount of data we can xferred */
1811 vlen = count;
1812 }
1813
1814 chklen = 0;
1815 if (h1m->flags & H1_MF_CHNK) {
1816 chklen = b_room(&tmp);
1817 chklen = ((chklen < 16) ? 1 : (chklen < 256) ? 2 :
1818 (chklen < 4096) ? 3 : (chklen < 65536) ? 4 :
1819 (chklen < 1048576) ? 5 : 8);
1820 chklen += 4; /* 2 x CRLF */
1821 }
1822
1823 if (vlen + chklen > b_room(&tmp)) {
1824 /* too large for the buffer */
1825 if (chklen >= b_room(&tmp))
1826 goto full;
1827 vlen = b_room(&tmp) - chklen;
1828 }
Christopher Faulet9768c262018-10-22 09:34:31 +02001829 v = htx_get_blk_value(chn_htx, blk);
Christopher Fauletb2e84162018-12-06 11:39:49 +01001830 v.len = vlen;
Christopher Faulet53a899b2019-10-08 16:38:42 +02001831 if (!h1_format_htx_data(v, &tmp, !!(h1m->flags & H1_MF_CHNK)))
Christopher Fauleta61aa542019-10-14 14:17:00 +02001832 goto full;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001833
1834 if (h1m->state == H1_MSG_DATA)
1835 TRACE_PROTO((!(h1m->flags & H1_MF_RESP) ? "H1 request payload data xferred" : "H1 response payload data xferred"),
Christopher Faulet08618a72019-10-08 11:59:47 +02001836 H1_EV_TX_DATA|H1_EV_TX_BODY, h1c->conn, h1s,, (size_t[]){v.len});
Christopher Faulet6b81df72019-10-01 22:08:43 +02001837 else
1838 TRACE_PROTO((!(h1m->flags & H1_MF_RESP) ? "H1 request tunneled data xferred" : "H1 response tunneled data xferred"),
Christopher Faulet08618a72019-10-08 11:59:47 +02001839 H1_EV_TX_DATA|H1_EV_TX_BODY, h1c->conn, h1s,, (size_t[]){v.len});
Christopher Faulet9768c262018-10-22 09:34:31 +02001840 break;
1841
Christopher Faulet94b2c762019-05-24 15:28:57 +02001842 case H1_MSG_TRAILERS:
1843 if (type == HTX_BLK_EOM)
1844 goto done;
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001845 else if (type != HTX_BLK_TLR && type != HTX_BLK_EOT)
Christopher Faulet94b2c762019-05-24 15:28:57 +02001846 goto error;
1847 trailers:
Christopher Faulet9768c262018-10-22 09:34:31 +02001848 h1m->state = H1_MSG_TRAILERS;
Christopher Faulet5433a0b2019-06-27 17:40:14 +02001849 /* If the message is not chunked, ignore
1850 * trailers. It may happen with H2 messages. */
1851 if (!(h1m->flags & H1_MF_CHNK))
1852 break;
1853
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001854 if (type == HTX_BLK_EOT) {
Christopher Fauletc2518a52019-06-25 21:41:02 +02001855 if (!chunk_memcat(&tmp, "\r\n", 2))
Christopher Fauleta61aa542019-10-14 14:17:00 +02001856 goto full;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001857 TRACE_PROTO((!(h1m->flags & H1_MF_RESP) ? "H1 request trailers xferred" : "H1 response trailers xferred"),
1858 H1_EV_TX_DATA|H1_EV_TX_TLRS, h1c->conn, h1s);
Christopher Faulet32188212018-11-20 18:21:43 +01001859 }
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001860 else { // HTX_BLK_TLR
1861 n = htx_get_blk_name(chn_htx, blk);
1862 v = htx_get_blk_value(chn_htx, blk);
Christopher Faulet98fbe952019-07-22 16:18:24 +02001863
1864 /* Try to adjust the case of the header name */
1865 if (h1c->px->options2 & (PR_O2_H1_ADJ_BUGCLI|PR_O2_H1_ADJ_BUGSRV))
1866 h1_adjust_case_outgoing_hdr(h1s, h1m, &n);
Christopher Faulet53a899b2019-10-08 16:38:42 +02001867 if (!h1_format_htx_hdr(n, v, &tmp))
Christopher Fauleta61aa542019-10-14 14:17:00 +02001868 goto full;
Christopher Faulet2d7c5392019-06-03 10:41:26 +02001869 }
Christopher Faulet9768c262018-10-22 09:34:31 +02001870 break;
1871
Christopher Faulet94b2c762019-05-24 15:28:57 +02001872 case H1_MSG_DONE:
1873 if (type != HTX_BLK_EOM)
1874 goto error;
1875 done:
1876 h1m->state = H1_MSG_DONE;
Christopher Fauletf3158e92019-11-15 11:14:23 +01001877 if (!(h1m->flags & H1_MF_RESP) && h1s->status == 101) {
1878 h1_set_req_tunnel_mode(h1s);
1879 TRACE_STATE("switch H1 request in tunnel mode", H1_EV_TX_DATA|H1_EV_TX_HDRS, h1c->conn, h1s);
1880 }
1881 else if (h1s->h1c->flags & H1C_F_IN_BUSY) {
Christopher Fauletcd67bff2019-06-14 16:54:15 +02001882 h1s->h1c->flags &= ~H1C_F_IN_BUSY;
1883 tasklet_wakeup(h1s->h1c->wait_event.tasklet);
Christopher Faulet6b81df72019-10-01 22:08:43 +02001884 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 +02001885 }
Christopher Faulet6b81df72019-10-01 22:08:43 +02001886
1887 TRACE_USER((!(h1m->flags & H1_MF_RESP) ? "H1 request fully xferred" : "H1 response fully xferred"),
1888 H1_EV_TX_DATA, h1c->conn, h1s);
Christopher Faulet9768c262018-10-22 09:34:31 +02001889 break;
1890
Christopher Faulet9768c262018-10-22 09:34:31 +02001891 default:
Christopher Faulet94b2c762019-05-24 15:28:57 +02001892 error:
Christopher Faulet6b81df72019-10-01 22:08:43 +02001893 TRACE_PROTO("formatting error", H1_EV_TX_DATA, h1c->conn, h1s);
Christopher Fauletd87d3fa2019-06-26 15:16:28 +02001894 /* Unexpected error during output processing */
Christopher Faulet69b48212019-09-09 10:11:30 +02001895 chn_htx->flags |= HTX_FL_PROCESSING_ERROR;
Christopher Fauleta2ea1582019-05-28 10:35:18 +02001896 h1s->flags |= errflag;
Christopher Fauletd87d3fa2019-06-26 15:16:28 +02001897 h1c->flags |= H1C_F_CS_ERROR;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001898 TRACE_STATE("processing error, set error on h1c/h1s", H1_EV_H1C_ERR|H1_EV_H1S_ERR, h1c->conn, h1s);
1899 TRACE_DEVEL("unexpected error", H1_EV_TX_DATA|H1_EV_STRM_ERR, h1c->conn, h1s);
Christopher Faulet9768c262018-10-22 09:34:31 +02001900 break;
1901 }
Christopher Faulet94b2c762019-05-24 15:28:57 +02001902
1903 nextblk:
Christopher Fauletb2e84162018-12-06 11:39:49 +01001904 total += vlen;
1905 count -= vlen;
1906 if (sz == vlen)
1907 blk = htx_remove_blk(chn_htx, blk);
1908 else {
1909 htx_cut_data_blk(chn_htx, blk, vlen);
1910 break;
1911 }
Christopher Faulet129817b2018-09-20 16:14:40 +02001912 }
1913
Christopher Faulet9768c262018-10-22 09:34:31 +02001914 copy:
Willy Tarreauc5efa332018-12-05 11:19:27 +01001915 /* when the output buffer is empty, tmp shares the same area so that we
1916 * only have to update pointers and lengths.
1917 */
Christopher Fauletc2518a52019-06-25 21:41:02 +02001918 if (tmp.area == h1c->obuf.area + h1c->obuf.head)
1919 h1c->obuf.data = tmp.data;
Willy Tarreauc5efa332018-12-05 11:19:27 +01001920 else
Christopher Fauletc2518a52019-06-25 21:41:02 +02001921 b_putblk(&h1c->obuf, tmp.area, tmp.data);
Christopher Faulet51dbc942018-09-13 09:05:15 +02001922
Willy Tarreau3815b222018-12-11 19:50:43 +01001923 htx_to_buf(chn_htx, buf);
Christopher Faulet6b81df72019-10-01 22:08:43 +02001924 out:
1925 if (!buf_room_for_htx_data(&h1c->obuf)) {
1926 TRACE_STATE("h1c obuf full", H1_EV_TX_DATA|H1_EV_H1S_BLK, h1c->conn, h1s);
Christopher Faulet51dbc942018-09-13 09:05:15 +02001927 h1c->flags |= H1C_F_OUT_FULL;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001928 }
Christopher Faulet9768c262018-10-22 09:34:31 +02001929 end:
Christopher Faulet6b81df72019-10-01 22:08:43 +02001930 TRACE_LEAVE(H1_EV_TX_DATA, h1c->conn, h1s, chn_htx, (size_t[]){total});
Christopher Faulet9768c262018-10-22 09:34:31 +02001931 return total;
Christopher Fauleta61aa542019-10-14 14:17:00 +02001932
1933 full:
1934 TRACE_STATE("h1c obuf full", H1_EV_TX_DATA|H1_EV_H1S_BLK, h1c->conn, h1s);
1935 h1c->flags |= H1C_F_OUT_FULL;
1936 goto copy;
Christopher Faulet51dbc942018-09-13 09:05:15 +02001937}
1938
Christopher Faulet51dbc942018-09-13 09:05:15 +02001939/*********************************************************/
1940/* functions below are I/O callbacks from the connection */
1941/*********************************************************/
Christopher Faulete17fa2f2018-12-11 16:25:36 +01001942static void h1_wake_stream_for_recv(struct h1s *h1s)
1943{
1944 if (h1s && h1s->recv_wait) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02001945 TRACE_POINT(H1_EV_STRM_WAKE, h1s->h1c->conn, h1s);
Willy Tarreau4f6516d2018-12-19 13:59:17 +01001946 h1s->recv_wait->events &= ~SUB_RETRY_RECV;
Willy Tarreau3c39a7d2019-06-14 14:42:29 +02001947 tasklet_wakeup(h1s->recv_wait->tasklet);
Christopher Faulete17fa2f2018-12-11 16:25:36 +01001948 h1s->recv_wait = NULL;
1949 }
1950}
1951static void h1_wake_stream_for_send(struct h1s *h1s)
1952{
1953 if (h1s && h1s->send_wait) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02001954 TRACE_POINT(H1_EV_STRM_WAKE, h1s->h1c->conn, h1s);
Willy Tarreau4f6516d2018-12-19 13:59:17 +01001955 h1s->send_wait->events &= ~SUB_RETRY_SEND;
Willy Tarreau3c39a7d2019-06-14 14:42:29 +02001956 tasklet_wakeup(h1s->send_wait->tasklet);
Christopher Faulete17fa2f2018-12-11 16:25:36 +01001957 h1s->send_wait = NULL;
1958 }
1959}
1960
Christopher Faulet51dbc942018-09-13 09:05:15 +02001961/*
1962 * Attempt to read data, and subscribe if none available
1963 */
1964static int h1_recv(struct h1c *h1c)
1965{
1966 struct connection *conn = h1c->conn;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001967 struct h1s *h1s = h1c->h1s;
Olivier Houchard75159a92018-12-03 18:46:09 +01001968 size_t ret = 0, max;
Christopher Faulet51dbc942018-09-13 09:05:15 +02001969 int rcvd = 0;
1970
Christopher Faulet6b81df72019-10-01 22:08:43 +02001971 TRACE_ENTER(H1_EV_H1C_RECV, h1c->conn);
1972
1973 if (h1c->wait_event.events & SUB_RETRY_RECV) {
1974 TRACE_DEVEL("leaving on sub_recv", H1_EV_H1C_RECV, h1c->conn);
Christopher Fauletc386a882018-12-04 16:06:28 +01001975 return (b_data(&h1c->ibuf));
Christopher Faulet6b81df72019-10-01 22:08:43 +02001976 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02001977
Olivier Houchard75159a92018-12-03 18:46:09 +01001978 if (!h1_recv_allowed(h1c)) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02001979 TRACE_DEVEL("leaving on !recv_allowed", H1_EV_H1C_RECV, h1c->conn);
Olivier Houchard75159a92018-12-03 18:46:09 +01001980 rcvd = 1;
Christopher Faulet9768c262018-10-22 09:34:31 +02001981 goto end;
Olivier Houchard75159a92018-12-03 18:46:09 +01001982 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02001983
Christopher Fauletf7d5ff32019-04-16 13:55:08 +02001984 if (!h1_get_buf(h1c, &h1c->ibuf)) {
1985 h1c->flags |= H1C_F_IN_ALLOC;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001986 TRACE_STATE("waiting for h1c ibuf allocation", H1_EV_H1C_RECV|H1_EV_H1C_BLK, h1c->conn);
Christopher Faulet9768c262018-10-22 09:34:31 +02001987 goto end;
1988 }
Christopher Faulet1be55f92018-10-02 15:59:23 +02001989
Christopher Fauletf7d5ff32019-04-16 13:55:08 +02001990 if (h1s && (h1s->flags & (H1S_F_BUF_FLUSH|H1S_F_SPLICED_DATA))) {
Willy Tarreaufbdf90a2019-06-03 13:42:54 +02001991 if (!h1s_data_pending(h1s))
Christopher Fauletf7d5ff32019-04-16 13:55:08 +02001992 h1_wake_stream_for_recv(h1s);
1993 rcvd = 1;
Christopher Faulet6b81df72019-10-01 22:08:43 +02001994 TRACE_DEVEL("leaving on (buf_flush|spliced_data)", H1_EV_H1C_RECV, h1c->conn);
Christopher Faulet9768c262018-10-22 09:34:31 +02001995 goto end;
Christopher Faulet51dbc942018-09-13 09:05:15 +02001996 }
1997
Olivier Houchard29a22bc2018-12-04 18:16:45 +01001998 /*
1999 * If we only have a small amount of data, realign it,
2000 * it's probably cheaper than doing 2 recv() calls.
2001 */
2002 if (b_data(&h1c->ibuf) > 0 && b_data(&h1c->ibuf) < 128)
2003 b_slow_realign(&h1c->ibuf, trash.area, 0);
2004
Willy Tarreau45f2b892018-12-05 07:59:27 +01002005 max = buf_room_for_htx_data(&h1c->ibuf);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002006 if (max) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02002007 if (h1c->flags & H1C_F_IN_FULL) {
2008 h1c->flags &= ~H1C_F_IN_FULL;
2009 TRACE_STATE("h1c ibuf not full anymore", H1_EV_H1C_RECV|H1_EV_H1C_BLK);
2010 }
Willy Tarreau78f548f2018-12-05 10:02:39 +01002011
Willy Tarreaue0f24ee2018-12-14 10:51:23 +01002012 b_realign_if_empty(&h1c->ibuf);
Willy Tarreau78f548f2018-12-05 10:02:39 +01002013 if (!b_data(&h1c->ibuf)) {
2014 /* try to pre-align the buffer like the rxbufs will be
2015 * to optimize memory copies.
2016 */
Willy Tarreau78f548f2018-12-05 10:02:39 +01002017 h1c->ibuf.head = sizeof(struct htx);
2018 }
Olivier Houcharde179d0e2019-03-21 18:27:17 +01002019 ret = conn->xprt->rcv_buf(conn, conn->xprt_ctx, &h1c->ibuf, max, 0);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002020 }
Christopher Faulet47365272018-10-31 17:40:50 +01002021 if (ret > 0) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02002022 TRACE_DATA("data received", H1_EV_H1C_RECV, h1c->conn,,, (size_t[]){ret});
Christopher Faulet51dbc942018-09-13 09:05:15 +02002023 rcvd = 1;
Christopher Fauletfeb11742018-11-29 15:12:34 +01002024 if (h1s && h1s->cs) {
Christopher Faulet37e36072018-12-04 15:54:12 +01002025 h1s->cs->flags |= (CS_FL_READ_PARTIAL|CS_FL_RCV_MORE);
Christopher Fauletfeb11742018-11-29 15:12:34 +01002026 if (h1s->csinfo.t_idle == -1)
2027 h1s->csinfo.t_idle = tv_ms_elapsed(&h1s->csinfo.tv_create, &now) - h1s->csinfo.t_handshake;
2028 }
Christopher Faulet47365272018-10-31 17:40:50 +01002029 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02002030
Olivier Houchardcc3fec82019-07-26 15:11:11 +02002031 if (ret > 0 || !h1_recv_allowed(h1c) || !buf_room_for_htx_data(&h1c->ibuf)) {
Christopher Faulet81d48432018-11-19 21:22:43 +01002032 rcvd = 1;
Christopher Fauletcf56b992018-12-11 16:12:31 +01002033 goto end;
2034 }
2035
Christopher Faulet6b81df72019-10-01 22:08:43 +02002036 TRACE_STATE("failed to receive data, subscribing", H1_EV_H1C_RECV, h1c->conn);
Olivier Houcharde179d0e2019-03-21 18:27:17 +01002037 conn->xprt->subscribe(conn, conn->xprt_ctx, SUB_RETRY_RECV, &h1c->wait_event);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002038
Christopher Faulet9768c262018-10-22 09:34:31 +02002039 end:
Christopher Faulete17fa2f2018-12-11 16:25:36 +01002040 if (ret > 0 || (conn->flags & CO_FL_ERROR) || conn_xprt_read0_pending(conn))
2041 h1_wake_stream_for_recv(h1s);
Olivier Houchard75159a92018-12-03 18:46:09 +01002042
Willy Tarreauc493c9c2019-06-03 14:18:22 +02002043 if (conn_xprt_read0_pending(conn) && h1s) {
2044 h1s->flags |= H1S_F_REOS;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002045 TRACE_STATE("read0 on connection", H1_EV_H1C_RECV, conn, h1s);
Willy Tarreaufbdf90a2019-06-03 13:42:54 +02002046 rcvd = 1;
2047 }
2048
Christopher Faulet51dbc942018-09-13 09:05:15 +02002049 if (!b_data(&h1c->ibuf))
2050 h1_release_buf(h1c, &h1c->ibuf);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002051 else if (!buf_room_for_htx_data(&h1c->ibuf)) {
Christopher Faulet51dbc942018-09-13 09:05:15 +02002052 h1c->flags |= H1C_F_IN_FULL;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002053 TRACE_STATE("h1c ibuf full", H1_EV_H1C_RECV|H1_EV_H1C_BLK);
2054 }
2055
2056 TRACE_LEAVE(H1_EV_H1C_RECV, h1c->conn);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002057 return rcvd;
2058}
2059
2060
2061/*
2062 * Try to send data if possible
2063 */
2064static int h1_send(struct h1c *h1c)
2065{
2066 struct connection *conn = h1c->conn;
2067 unsigned int flags = 0;
2068 size_t ret;
2069 int sent = 0;
2070
Christopher Faulet6b81df72019-10-01 22:08:43 +02002071 TRACE_ENTER(H1_EV_H1C_SEND, h1c->conn);
2072
2073 if (conn->flags & CO_FL_ERROR) {
2074 TRACE_DEVEL("leaving on connection error", H1_EV_H1C_SEND, h1c->conn);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002075 return 0;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002076 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02002077
2078 if (!b_data(&h1c->obuf))
2079 goto end;
2080
2081 if (h1c->flags & H1C_F_OUT_FULL)
2082 flags |= CO_SFL_MSG_MORE;
2083
Olivier Houcharde179d0e2019-03-21 18:27:17 +01002084 ret = conn->xprt->snd_buf(conn, conn->xprt_ctx, &h1c->obuf, b_data(&h1c->obuf), flags);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002085 if (ret > 0) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02002086 TRACE_DATA("data sent", H1_EV_H1C_SEND, h1c->conn,,, (size_t[]){ret});
2087 if (h1c->flags & H1C_F_OUT_FULL) {
2088 h1c->flags &= ~H1C_F_OUT_FULL;
2089 TRACE_STATE("h1c obuf not full anymore", H1_EV_STRM_SEND|H1_EV_H1S_BLK, h1c->conn);
2090 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02002091 b_del(&h1c->obuf, ret);
2092 sent = 1;
2093 }
2094
Christopher Faulet145aa472018-12-06 10:56:20 +01002095 if (conn->flags & (CO_FL_ERROR|CO_FL_SOCK_WR_SH)) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02002096 TRACE_DEVEL("connection error or output closed", H1_EV_H1C_SEND, h1c->conn);
Christopher Faulet145aa472018-12-06 10:56:20 +01002097 /* error or output closed, nothing to send, clear the buffer to release it */
2098 b_reset(&h1c->obuf);
2099 }
2100
Christopher Faulet51dbc942018-09-13 09:05:15 +02002101 end:
Christopher Faulete17fa2f2018-12-11 16:25:36 +01002102 if (!(h1c->flags & H1C_F_OUT_FULL))
2103 h1_wake_stream_for_send(h1c->h1s);
Olivier Houchard75159a92018-12-03 18:46:09 +01002104
Christopher Faulet51dbc942018-09-13 09:05:15 +02002105 /* We're done, no more to send */
2106 if (!b_data(&h1c->obuf)) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02002107 TRACE_DEVEL("leaving with everything sent", H1_EV_H1C_SEND, h1c->conn);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002108 h1_release_buf(h1c, &h1c->obuf);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002109 if (h1c->flags & H1C_F_CS_SHUTW_NOW) {
2110 TRACE_STATE("process pending shutdown for writes", H1_EV_H1C_SEND, h1c->conn);
Christopher Faulet666a0c42019-01-08 11:12:04 +01002111 h1_shutw_conn(conn, CS_SHW_NORMAL);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002112 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02002113 }
Christopher Faulet6b81df72019-10-01 22:08:43 +02002114 else if (!(h1c->wait_event.events & SUB_RETRY_SEND)) {
2115 TRACE_STATE("more data to send, subscribing", H1_EV_H1C_SEND, h1c->conn);
Olivier Houcharde179d0e2019-03-21 18:27:17 +01002116 conn->xprt->subscribe(conn, conn->xprt_ctx, SUB_RETRY_SEND, &h1c->wait_event);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002117 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02002118
Christopher Faulet6b81df72019-10-01 22:08:43 +02002119 TRACE_LEAVE(H1_EV_H1C_SEND, h1c->conn);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002120 return sent;
2121}
2122
Christopher Faulet51dbc942018-09-13 09:05:15 +02002123
2124/* callback called on any event by the connection handler.
2125 * It applies changes and returns zero, or < 0 if it wants immediate
2126 * destruction of the connection.
2127 */
2128static int h1_process(struct h1c * h1c)
2129{
2130 struct connection *conn = h1c->conn;
Christopher Fauletfeb11742018-11-29 15:12:34 +01002131 struct h1s *h1s = h1c->h1s;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002132
Christopher Faulet6b81df72019-10-01 22:08:43 +02002133 TRACE_ENTER(H1_EV_H1C_WAKE, conn);
2134
Willy Tarreau3d2ee552018-12-19 14:12:10 +01002135 if (!conn->ctx)
Christopher Faulet51dbc942018-09-13 09:05:15 +02002136 return -1;
2137
Christopher Fauletfeb11742018-11-29 15:12:34 +01002138 if (!h1s) {
Christopher Faulet37243bc2019-07-11 15:40:25 +02002139 if (h1c->flags & (H1C_F_CS_ERROR|H1C_F_CS_SHUTDOWN) ||
Olivier Houchard32d75ed2019-01-14 17:27:23 +01002140 conn->flags & (CO_FL_ERROR | CO_FL_SOCK_WR_SH) ||
Christopher Faulet539e0292018-11-19 10:40:09 +01002141 conn_xprt_read0_pending(conn))
2142 goto release;
Christopher Faulet666a0c42019-01-08 11:12:04 +01002143 if (!conn_is_back(conn) && !(h1c->flags & (H1C_F_CS_SHUTW_NOW|H1C_F_CS_SHUTDOWN))) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02002144 TRACE_STATE("K/A incoming connection, create new H1 stream", H1_EV_H1C_WAKE, conn);
Olivier Houchardf502aca2018-12-14 19:42:40 +01002145 if (!h1s_create(h1c, NULL, NULL))
Christopher Faulet539e0292018-11-19 10:40:09 +01002146 goto release;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002147 }
Christopher Faulet1a7ad7a2018-12-04 16:10:44 +01002148 else
Olivier Houcharde7284782018-12-06 18:54:54 +01002149 goto end;
Christopher Fauletfeb11742018-11-29 15:12:34 +01002150 h1s = h1c->h1s;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002151 }
2152
Christopher Fauletfeb11742018-11-29 15:12:34 +01002153 if (b_data(&h1c->ibuf) && h1s->csinfo.t_idle == -1)
2154 h1s->csinfo.t_idle = tv_ms_elapsed(&h1s->csinfo.tv_create, &now) - h1s->csinfo.t_handshake;
2155
Christopher Faulet6b81df72019-10-01 22:08:43 +02002156 if (conn_xprt_read0_pending(conn)) {
Willy Tarreauc493c9c2019-06-03 14:18:22 +02002157 h1s->flags |= H1S_F_REOS;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002158 TRACE_STATE("read0 on connection", H1_EV_H1C_RECV, conn, h1s);
2159 }
Willy Tarreauc493c9c2019-06-03 14:18:22 +02002160
Willy Tarreaufbdf90a2019-06-03 13:42:54 +02002161 if (!h1s_data_pending(h1s) && h1s && h1s->cs && h1s->cs->data_cb->wake &&
Willy Tarreauc493c9c2019-06-03 14:18:22 +02002162 (h1s->flags & H1S_F_REOS || h1c->flags & H1C_F_CS_ERROR ||
Olivier Houchard32d75ed2019-01-14 17:27:23 +01002163 conn->flags & (CO_FL_ERROR | CO_FL_SOCK_WR_SH))) {
Olivier Houchard75159a92018-12-03 18:46:09 +01002164 if (h1c->flags & H1C_F_CS_ERROR || conn->flags & CO_FL_ERROR)
Willy Tarreauc493c9c2019-06-03 14:18:22 +02002165 h1s->cs->flags |= CS_FL_ERROR;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002166 TRACE_POINT(H1_EV_STRM_WAKE, h1c->conn, h1s);
Olivier Houchard75159a92018-12-03 18:46:09 +01002167 h1s->cs->data_cb->wake(h1s->cs);
2168 }
Christopher Faulet47365272018-10-31 17:40:50 +01002169 end:
Christopher Fauletb8093cf2019-01-03 16:27:28 +01002170 if (h1c->task) {
2171 h1c->task->expire = TICK_ETERNITY;
2172 if (b_data(&h1c->obuf)) {
Christopher Faulet666a0c42019-01-08 11:12:04 +01002173 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 +01002174 ? h1c->shut_timeout
2175 : h1c->timeout));
2176 task_queue(h1c->task);
2177 }
2178 }
Christopher Faulet6b81df72019-10-01 22:08:43 +02002179 TRACE_LEAVE(H1_EV_H1C_WAKE, conn);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002180 return 0;
Christopher Faulet539e0292018-11-19 10:40:09 +01002181
2182 release:
Christopher Faulet73c12072019-04-08 11:23:22 +02002183 h1_release(h1c);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002184 TRACE_DEVEL("leaving after releasing the connection", H1_EV_H1C_WAKE);
Christopher Faulet539e0292018-11-19 10:40:09 +01002185 return -1;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002186}
2187
2188static struct task *h1_io_cb(struct task *t, void *ctx, unsigned short status)
2189{
2190 struct h1c *h1c = ctx;
2191 int ret = 0;
2192
Christopher Faulet6b81df72019-10-01 22:08:43 +02002193 TRACE_POINT(H1_EV_H1C_WAKE, h1c->conn);
2194
Willy Tarreau4f6516d2018-12-19 13:59:17 +01002195 if (!(h1c->wait_event.events & SUB_RETRY_SEND))
Christopher Faulet51dbc942018-09-13 09:05:15 +02002196 ret = h1_send(h1c);
Willy Tarreau4f6516d2018-12-19 13:59:17 +01002197 if (!(h1c->wait_event.events & SUB_RETRY_RECV))
Christopher Faulet51dbc942018-09-13 09:05:15 +02002198 ret |= h1_recv(h1c);
Christopher Faulet81d48432018-11-19 21:22:43 +01002199 if (ret || !h1c->h1s)
Christopher Faulet51dbc942018-09-13 09:05:15 +02002200 h1_process(h1c);
2201 return NULL;
2202}
2203
Olivier Houchard9a86fcb2018-12-11 16:47:14 +01002204static void h1_reset(struct connection *conn)
2205{
Olivier Houchard9a86fcb2018-12-11 16:47:14 +01002206
Olivier Houchard9a86fcb2018-12-11 16:47:14 +01002207}
Christopher Faulet51dbc942018-09-13 09:05:15 +02002208
2209static int h1_wake(struct connection *conn)
2210{
Willy Tarreau3d2ee552018-12-19 14:12:10 +01002211 struct h1c *h1c = conn->ctx;
Olivier Houchard75159a92018-12-03 18:46:09 +01002212 int ret;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002213
Christopher Faulet6b81df72019-10-01 22:08:43 +02002214 TRACE_POINT(H1_EV_H1C_WAKE, conn);
2215
Christopher Faulet539e0292018-11-19 10:40:09 +01002216 h1_send(h1c);
Olivier Houchard75159a92018-12-03 18:46:09 +01002217 ret = h1_process(h1c);
2218 if (ret == 0) {
2219 struct h1s *h1s = h1c->h1s;
2220
Christopher Faulet6b81df72019-10-01 22:08:43 +02002221 if (h1s && h1s->cs && h1s->cs->data_cb->wake) {
2222 TRACE_POINT(H1_EV_STRM_WAKE, h1c->conn, h1s);
Olivier Houchard75159a92018-12-03 18:46:09 +01002223 ret = h1s->cs->data_cb->wake(h1s->cs);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002224 }
Olivier Houchard75159a92018-12-03 18:46:09 +01002225 }
2226 return ret;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002227}
2228
Christopher Fauletb8093cf2019-01-03 16:27:28 +01002229/* Connection timeout management. The principle is that if there's no receipt
2230 * nor sending for a certain amount of time, the connection is closed.
2231 */
2232static struct task *h1_timeout_task(struct task *t, void *context, unsigned short state)
2233{
2234 struct h1c *h1c = context;
2235 int expired = tick_is_expired(t->expire, now_ms);
2236
Christopher Faulet6b81df72019-10-01 22:08:43 +02002237 TRACE_POINT(H1_EV_H1C_WAKE, h1c ? h1c->conn : NULL);
2238
2239 if (!expired && h1c) {
2240 TRACE_DEVEL("leaving (not expired)", H1_EV_H1C_WAKE, h1c->conn);
Christopher Fauletb8093cf2019-01-03 16:27:28 +01002241 return t;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002242 }
Christopher Fauletb8093cf2019-01-03 16:27:28 +01002243
Olivier Houchard3f795f72019-04-17 22:51:06 +02002244 task_destroy(t);
Christopher Fauletb8093cf2019-01-03 16:27:28 +01002245
2246 if (!h1c) {
2247 /* resources were already deleted */
Christopher Faulet6b81df72019-10-01 22:08:43 +02002248 TRACE_DEVEL("leaving (not more h1c)", H1_EV_H1C_WAKE);
Christopher Fauletb8093cf2019-01-03 16:27:28 +01002249 return NULL;
2250 }
2251
2252 h1c->task = NULL;
2253 /* If a stream is still attached to the mux, just set an error and wait
2254 * for the stream's timeout. Otherwise, release the mux. This is only ok
2255 * because same timeouts are used.
2256 */
Christopher Faulet6b81df72019-10-01 22:08:43 +02002257 if (h1c->h1s && h1c->h1s->cs) {
Christopher Fauletb8093cf2019-01-03 16:27:28 +01002258 h1c->flags |= H1C_F_CS_ERROR;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002259 TRACE_STATE("error on h1c, h1s still attached (expired)", H1_EV_H1C_WAKE|H1_EV_H1C_ERR, h1c->conn, h1c->h1s);
2260 }
Christopher Fauletb8093cf2019-01-03 16:27:28 +01002261 else
Christopher Faulet73c12072019-04-08 11:23:22 +02002262 h1_release(h1c);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002263
Christopher Fauletb8093cf2019-01-03 16:27:28 +01002264 return NULL;
2265}
2266
Christopher Faulet51dbc942018-09-13 09:05:15 +02002267/*******************************************/
2268/* functions below are used by the streams */
2269/*******************************************/
Christopher Faulet73c12072019-04-08 11:23:22 +02002270
Christopher Faulet51dbc942018-09-13 09:05:15 +02002271/*
2272 * Attach a new stream to a connection
2273 * (Used for outgoing connections)
2274 */
Olivier Houchardf502aca2018-12-14 19:42:40 +01002275static struct conn_stream *h1_attach(struct connection *conn, struct session *sess)
Christopher Faulet51dbc942018-09-13 09:05:15 +02002276{
Willy Tarreau3d2ee552018-12-19 14:12:10 +01002277 struct h1c *h1c = conn->ctx;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002278 struct conn_stream *cs = NULL;
2279 struct h1s *h1s;
2280
Christopher Faulet6b81df72019-10-01 22:08:43 +02002281 TRACE_ENTER(H1_EV_STRM_NEW, conn);
2282 if (h1c->flags & H1C_F_CS_ERROR) {
2283 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 +02002284 goto end;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002285 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02002286
2287 cs = cs_new(h1c->conn);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002288 if (!cs) {
2289 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 +02002290 goto end;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002291 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02002292
Olivier Houchardf502aca2018-12-14 19:42:40 +01002293 h1s = h1s_create(h1c, cs, sess);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002294 if (h1s == NULL) {
2295 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 +02002296 goto end;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002297 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02002298
Christopher Faulet6b81df72019-10-01 22:08:43 +02002299 TRACE_LEAVE(H1_EV_STRM_NEW, conn, h1s);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002300 return cs;
2301 end:
2302 cs_free(cs);
2303 return NULL;
2304}
2305
2306/* Retrieves a valid conn_stream from this connection, or returns NULL. For
2307 * this mux, it's easy as we can only store a single conn_stream.
2308 */
2309static const struct conn_stream *h1_get_first_cs(const struct connection *conn)
2310{
Willy Tarreau3d2ee552018-12-19 14:12:10 +01002311 struct h1c *h1c = conn->ctx;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002312 struct h1s *h1s = h1c->h1s;
2313
2314 if (h1s)
2315 return h1s->cs;
2316
2317 return NULL;
2318}
2319
Christopher Faulet73c12072019-04-08 11:23:22 +02002320static void h1_destroy(void *ctx)
Christopher Faulet51dbc942018-09-13 09:05:15 +02002321{
Christopher Faulet73c12072019-04-08 11:23:22 +02002322 struct h1c *h1c = ctx;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002323
Christopher Faulet6b81df72019-10-01 22:08:43 +02002324 TRACE_POINT(H1_EV_H1C_END, h1c->conn);
Christopher Faulet39a96ee2019-04-08 10:52:21 +02002325 if (!h1c->h1s || !h1c->conn || h1c->conn->ctx != h1c)
Christopher Faulet73c12072019-04-08 11:23:22 +02002326 h1_release(h1c);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002327}
2328
2329/*
2330 * Detach the stream from the connection and possibly release the connection.
2331 */
2332static void h1_detach(struct conn_stream *cs)
2333{
2334 struct h1s *h1s = cs->ctx;
2335 struct h1c *h1c;
Olivier Houchardf502aca2018-12-14 19:42:40 +01002336 struct session *sess;
Olivier Houchard8a786902018-12-15 16:05:40 +01002337 int has_keepalive;
2338 int is_not_first;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002339
Christopher Faulet6b81df72019-10-01 22:08:43 +02002340 TRACE_ENTER(H1_EV_STRM_END, h1s ? h1s->h1c->conn : NULL, h1s);
2341
Christopher Faulet51dbc942018-09-13 09:05:15 +02002342 cs->ctx = NULL;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002343 if (!h1s) {
2344 TRACE_LEAVE(H1_EV_STRM_END);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002345 return;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002346 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02002347
Olivier Houchardf502aca2018-12-14 19:42:40 +01002348 sess = h1s->sess;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002349 h1c = h1s->h1c;
2350 h1s->cs = NULL;
2351
Olivier Houchard8a786902018-12-15 16:05:40 +01002352 has_keepalive = h1s->flags & H1S_F_WANT_KAL;
2353 is_not_first = h1s->flags & H1S_F_NOT_FIRST;
2354 h1s_destroy(h1s);
2355
2356 if (conn_is_back(h1c->conn) && has_keepalive &&
Olivier Houchard44d59142018-12-13 18:46:22 +01002357 !(h1c->conn->flags & (CO_FL_ERROR | CO_FL_SOCK_RD_SH | CO_FL_SOCK_WR_SH))) {
Christopher Fauletf1204b82019-07-19 14:51:06 +02002358 /* If there are any excess server data in the input buffer,
2359 * release it and close the connection ASAP (some data may
2360 * remain in the output buffer). This happens if a server sends
2361 * invalid responses. So in such case, we don't want to reuse
2362 * the connection
Christopher Faulet03627242019-07-19 11:34:08 +02002363 */
Christopher Fauletf1204b82019-07-19 14:51:06 +02002364 if (b_data(&h1c->ibuf)) {
2365 h1_release_buf(h1c, &h1c->ibuf);
2366 h1c->flags |= H1C_F_CS_SHUTW_NOW;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002367 TRACE_DEVEL("remaining data on detach, kill connection", H1_EV_STRM_END|H1_EV_H1C_END);
Christopher Fauletf1204b82019-07-19 14:51:06 +02002368 goto release;
2369 }
Christopher Faulet03627242019-07-19 11:34:08 +02002370
Christopher Faulet9400a392018-11-23 23:10:39 +01002371 /* Never ever allow to reuse a connection from a non-reuse backend */
Olivier Houchard44d59142018-12-13 18:46:22 +01002372 if ((h1c->px->options & PR_O_REUSE_MASK) == PR_O_REUSE_NEVR)
Christopher Faulet9400a392018-11-23 23:10:39 +01002373 h1c->conn->flags |= CO_FL_PRIVATE;
2374
Olivier Houchard44d59142018-12-13 18:46:22 +01002375 if (!(h1c->conn->owner)) {
Olivier Houchardf502aca2018-12-14 19:42:40 +01002376 h1c->conn->owner = sess;
Olivier Houchard351411f2018-12-27 17:20:54 +01002377 if (!session_add_conn(sess, h1c->conn, h1c->conn->target)) {
2378 h1c->conn->owner = NULL;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002379 if (!srv_add_to_idle_list(objt_server(h1c->conn->target), h1c->conn)) {
Olivier Houchard351411f2018-12-27 17:20:54 +01002380 /* The server doesn't want it, let's kill the connection right away */
2381 h1c->conn->mux->destroy(h1c->conn);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002382 TRACE_DEVEL("outgoing connection killed", H1_EV_STRM_END|H1_EV_H1C_END);
2383 goto end;
2384 }
2385 tasklet_wakeup(h1c->wait_event.tasklet);
2386 TRACE_DEVEL("reusable idle connection", H1_EV_STRM_END, h1c->conn);
2387 goto end;
Olivier Houchard351411f2018-12-27 17:20:54 +01002388 }
Olivier Houchard44d59142018-12-13 18:46:22 +01002389 }
Olivier Houcharda4d4fdf2018-12-14 19:27:06 +01002390 if (h1c->conn->owner == sess) {
2391 int ret = session_check_idle_conn(sess, h1c->conn);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002392 if (ret == -1) {
Olivier Houcharda4d4fdf2018-12-14 19:27:06 +01002393 /* The connection got destroyed, let's leave */
Christopher Faulet6b81df72019-10-01 22:08:43 +02002394 TRACE_DEVEL("outgoing connection killed", H1_EV_STRM_END|H1_EV_H1C_END);
2395 goto end;
2396 }
Olivier Houcharda4d4fdf2018-12-14 19:27:06 +01002397 else if (ret == 1) {
2398 /* The connection was added to the server list,
2399 * wake the task so we can subscribe to events
2400 */
Willy Tarreau3c39a7d2019-06-14 14:42:29 +02002401 tasklet_wakeup(h1c->wait_event.tasklet);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002402 TRACE_DEVEL("reusable idle connection", H1_EV_STRM_END, h1c->conn);
2403 goto end;
Olivier Houcharda4d4fdf2018-12-14 19:27:06 +01002404 }
Christopher Faulet6b81df72019-10-01 22:08:43 +02002405 TRACE_DEVEL("connection in idle session list", H1_EV_STRM_END, h1c->conn);
Olivier Houcharda4d4fdf2018-12-14 19:27:06 +01002406 }
Christopher Faulet9400a392018-11-23 23:10:39 +01002407 /* we're in keep-alive with an idle connection, monitor it if not already done */
Olivier Houchard44d59142018-12-13 18:46:22 +01002408 if (LIST_ISEMPTY(&h1c->conn->list)) {
Christopher Faulet9400a392018-11-23 23:10:39 +01002409 struct server *srv = objt_server(h1c->conn->target);
2410
2411 if (srv) {
2412 if (h1c->conn->flags & CO_FL_PRIVATE)
2413 LIST_ADD(&srv->priv_conns[tid], &h1c->conn->list);
Olivier Houchard8a786902018-12-15 16:05:40 +01002414 else if (is_not_first)
Christopher Faulet9400a392018-11-23 23:10:39 +01002415 LIST_ADD(&srv->safe_conns[tid], &h1c->conn->list);
2416 else
2417 LIST_ADD(&srv->idle_conns[tid], &h1c->conn->list);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002418 TRACE_DEVEL("connection in idle server list", H1_EV_STRM_END, h1c->conn);
Christopher Faulet9400a392018-11-23 23:10:39 +01002419 }
2420 }
2421 }
2422
Christopher Fauletf1204b82019-07-19 14:51:06 +02002423 release:
Christopher Faulet3ac0f432019-06-28 17:41:42 +02002424 /* 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 +02002425 if ((h1c->flags & (H1C_F_CS_ERROR|H1C_F_CS_SHUTDOWN|H1C_F_UPG_H2C)) ||
2426 (h1c->conn->flags & (CO_FL_ERROR|CO_FL_SOCK_WR_SH)) ||
2427 ((h1c->flags & H1C_F_CS_SHUTW_NOW) && !b_data(&h1c->obuf)) ||
Christopher Faulet6b81df72019-10-01 22:08:43 +02002428 !h1c->conn->owner) {
2429 TRACE_DEVEL("killing dead connection", H1_EV_STRM_END, h1c->conn);
Christopher Faulet73c12072019-04-08 11:23:22 +02002430 h1_release(h1c);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002431 }
Christopher Fauletb8093cf2019-01-03 16:27:28 +01002432 else {
Willy Tarreau3c39a7d2019-06-14 14:42:29 +02002433 tasklet_wakeup(h1c->wait_event.tasklet);
Christopher Fauletb8093cf2019-01-03 16:27:28 +01002434 if (h1c->task) {
2435 h1c->task->expire = TICK_ETERNITY;
2436 if (b_data(&h1c->obuf)) {
Christopher Faulet666a0c42019-01-08 11:12:04 +01002437 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 +01002438 ? h1c->shut_timeout
2439 : h1c->timeout));
2440 task_queue(h1c->task);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002441 TRACE_DEVEL("refreshing connection's timeout", H1_EV_STRM_END, h1c->conn);
Christopher Fauletb8093cf2019-01-03 16:27:28 +01002442 }
2443 }
2444 }
Christopher Faulet6b81df72019-10-01 22:08:43 +02002445 end:
2446 TRACE_LEAVE(H1_EV_STRM_END);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002447}
2448
2449
2450static void h1_shutr(struct conn_stream *cs, enum cs_shr_mode mode)
2451{
2452 struct h1s *h1s = cs->ctx;
Christopher Faulet7f366362019-04-08 10:51:20 +02002453 struct h1c *h1c;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002454
2455 if (!h1s)
2456 return;
Christopher Faulet7f366362019-04-08 10:51:20 +02002457 h1c = h1s->h1c;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002458
Christopher Faulet6b81df72019-10-01 22:08:43 +02002459 TRACE_ENTER(H1_EV_STRM_SHUT, h1c->conn, h1s);
2460
2461 if (cs->flags & CS_FL_KILL_CONN) {
2462 TRACE_STATE("stream wants to kill the connection", H1_EV_STRM_SHUT, h1c->conn, h1s);
2463 goto do_shutr;
2464 }
2465 if (h1c->conn->flags & (CO_FL_ERROR | CO_FL_SOCK_RD_SH | CO_FL_SOCK_WR_SH)) {
2466 TRACE_STATE("shutdown on connection (error|rd_sh|wr_sh)", H1_EV_STRM_SHUT, h1c->conn, h1s);
Christopher Faulet7f366362019-04-08 10:51:20 +02002467 goto do_shutr;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002468 }
Christopher Faulet7f366362019-04-08 10:51:20 +02002469
Christopher Faulet6b81df72019-10-01 22:08:43 +02002470 if ((h1c->flags & H1C_F_UPG_H2C) || (h1s->flags & H1S_F_WANT_KAL)) {
2471 TRACE_STATE("keep connection alive (upg_h2c|want_kal)", H1_EV_STRM_SHUT, h1c->conn, h1s);
2472 goto end;
2473 }
Christopher Fauletf2824e62018-10-01 12:12:37 +02002474
Christopher Faulet7f366362019-04-08 10:51:20 +02002475 do_shutr:
Christopher Faulet51dbc942018-09-13 09:05:15 +02002476 /* NOTE: Be sure to handle abort (cf. h2_shutr) */
2477 if (cs->flags & CS_FL_SHR)
Christopher Faulet6b81df72019-10-01 22:08:43 +02002478 goto end;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002479 if (conn_xprt_ready(cs->conn) && cs->conn->xprt->shutr)
Olivier Houcharde179d0e2019-03-21 18:27:17 +01002480 cs->conn->xprt->shutr(cs->conn, cs->conn->xprt_ctx,
Christopher Faulet6b81df72019-10-01 22:08:43 +02002481 (mode == CS_SHR_DRAIN));
Christopher Faulet666a0c42019-01-08 11:12:04 +01002482 if ((cs->conn->flags & (CO_FL_SOCK_RD_SH|CO_FL_SOCK_WR_SH)) == (CO_FL_SOCK_RD_SH|CO_FL_SOCK_WR_SH))
Christopher Faulet7f366362019-04-08 10:51:20 +02002483 h1c->flags = (h1c->flags & ~H1C_F_CS_SHUTW_NOW) | H1C_F_CS_SHUTDOWN;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002484 end:
2485 TRACE_LEAVE(H1_EV_STRM_SHUT, h1c->conn, h1s);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002486}
2487
2488static void h1_shutw(struct conn_stream *cs, enum cs_shw_mode mode)
2489{
2490 struct h1s *h1s = cs->ctx;
2491 struct h1c *h1c;
2492
2493 if (!h1s)
2494 return;
2495 h1c = h1s->h1c;
2496
Christopher Faulet6b81df72019-10-01 22:08:43 +02002497 TRACE_ENTER(H1_EV_STRM_SHUT, h1c->conn, h1s);
2498
2499 if (cs->flags & CS_FL_KILL_CONN) {
2500 TRACE_STATE("stream wants to kill the connection", H1_EV_STRM_SHUT, h1c->conn, h1s);
Christopher Faulet7f366362019-04-08 10:51:20 +02002501 goto do_shutw;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002502 }
2503 if (h1c->conn->flags & (CO_FL_ERROR | CO_FL_SOCK_RD_SH | CO_FL_SOCK_WR_SH)) {
2504 TRACE_STATE("shutdown on connection (error|rd_sh|wr_sh)", H1_EV_STRM_SHUT, h1c->conn, h1s);
2505 goto do_shutw;
2506 }
Olivier Houchardd2e88c72018-12-19 15:55:23 +01002507
Christopher Faulet0ef372a2019-04-08 10:57:20 +02002508 if ((h1c->flags & H1C_F_UPG_H2C) ||
Christopher Faulet6b81df72019-10-01 22:08:43 +02002509 ((h1s->flags & H1S_F_WANT_KAL) && h1s->req.state == H1_MSG_DONE && h1s->res.state == H1_MSG_DONE)) {
2510 TRACE_STATE("keep connection alive (upg_h2c|want_kal)", H1_EV_STRM_SHUT, h1c->conn, h1s);
2511 goto end;
2512 }
Christopher Fauletf2824e62018-10-01 12:12:37 +02002513
Christopher Faulet7f366362019-04-08 10:51:20 +02002514 do_shutw:
Christopher Faulet51dbc942018-09-13 09:05:15 +02002515 h1c->flags |= H1C_F_CS_SHUTW_NOW;
2516 if ((cs->flags & CS_FL_SHW) || b_data(&h1c->obuf))
Christopher Faulet6b81df72019-10-01 22:08:43 +02002517 goto end;
Christopher Faulet666a0c42019-01-08 11:12:04 +01002518 h1_shutw_conn(cs->conn, mode);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002519 end:
2520 TRACE_LEAVE(H1_EV_STRM_SHUT, h1c->conn, h1s);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002521}
2522
Christopher Faulet666a0c42019-01-08 11:12:04 +01002523static void h1_shutw_conn(struct connection *conn, enum cs_shw_mode mode)
Christopher Faulet51dbc942018-09-13 09:05:15 +02002524{
Willy Tarreau3d2ee552018-12-19 14:12:10 +01002525 struct h1c *h1c = conn->ctx;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002526
Christopher Faulet6b81df72019-10-01 22:08:43 +02002527 TRACE_ENTER(H1_EV_STRM_SHUT, conn, h1c->h1s);
Christopher Faulet666a0c42019-01-08 11:12:04 +01002528 conn_xprt_shutw(conn);
2529 conn_sock_shutw(conn, (mode == CS_SHW_NORMAL));
2530 if ((conn->flags & (CO_FL_SOCK_RD_SH|CO_FL_SOCK_WR_SH)) == (CO_FL_SOCK_RD_SH|CO_FL_SOCK_WR_SH))
2531 h1c->flags = (h1c->flags & ~H1C_F_CS_SHUTW_NOW) | H1C_F_CS_SHUTDOWN;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002532 TRACE_LEAVE(H1_EV_STRM_SHUT, conn, h1c->h1s);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002533}
2534
2535/* Called from the upper layer, to unsubscribe to events */
2536static int h1_unsubscribe(struct conn_stream *cs, int event_type, void *param)
2537{
2538 struct wait_event *sw;
2539 struct h1s *h1s = cs->ctx;
2540
2541 if (!h1s)
2542 return 0;
2543
Willy Tarreau4f6516d2018-12-19 13:59:17 +01002544 if (event_type & SUB_RETRY_RECV) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02002545 TRACE_DEVEL("unsubscribe(recv)", H1_EV_STRM_RECV, h1s->h1c->conn, h1s);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002546 sw = param;
Olivier Houchard00b8f7c2019-05-14 18:02:23 +02002547 BUG_ON(h1s->recv_wait != sw);
2548 sw->events &= ~SUB_RETRY_RECV;
2549 h1s->recv_wait = NULL;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002550 }
Willy Tarreau4f6516d2018-12-19 13:59:17 +01002551 if (event_type & SUB_RETRY_SEND) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02002552 TRACE_DEVEL("unsubscribe(send)", H1_EV_STRM_SEND, h1s->h1c->conn, h1s);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002553 sw = param;
Olivier Houchard00b8f7c2019-05-14 18:02:23 +02002554 BUG_ON(h1s->send_wait != sw);
2555 sw->events &= ~SUB_RETRY_SEND;
2556 h1s->send_wait = NULL;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002557 }
2558 return 0;
2559}
2560
2561/* Called from the upper layer, to subscribe to events, such as being able to send */
2562static int h1_subscribe(struct conn_stream *cs, int event_type, void *param)
2563{
2564 struct wait_event *sw;
2565 struct h1s *h1s = cs->ctx;
Christopher Faulet51bb1852019-09-04 10:22:34 +02002566 struct h1c *h1c;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002567
2568 if (!h1s)
2569 return -1;
2570
Christopher Faulet6b81df72019-10-01 22:08:43 +02002571 if (event_type & SUB_RETRY_RECV) {
2572 TRACE_DEVEL("subscribe(recv)", H1_EV_STRM_RECV, h1s->h1c->conn, h1s);
2573 sw = param;
2574 BUG_ON(h1s->recv_wait != NULL || (sw->events & SUB_RETRY_RECV));
2575 sw->events |= SUB_RETRY_RECV;
2576 h1s->recv_wait = sw;
2577 event_type &= ~SUB_RETRY_RECV;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002578 }
Christopher Faulet6b81df72019-10-01 22:08:43 +02002579 if (event_type & SUB_RETRY_SEND) {
2580 TRACE_DEVEL("subscribe(send)", H1_EV_STRM_SEND, h1s->h1c->conn, h1s);
2581 sw = param;
2582 BUG_ON(h1s->send_wait != NULL || (sw->events & SUB_RETRY_SEND));
2583 sw->events |= SUB_RETRY_SEND;
2584 h1s->send_wait = sw;
2585 event_type &= ~SUB_RETRY_SEND;
2586 /*
2587 * If the conn_stream attempt to subscribe, and the
2588 * mux isn't subscribed to the connection, then it
2589 * probably means the connection wasn't established
2590 * yet, so we have to subscribe.
2591 */
2592 h1c = h1s->h1c;
2593 if (!(h1c->wait_event.events & SUB_RETRY_SEND))
2594 h1c->conn->xprt->subscribe(h1c->conn,
2595 h1c->conn->xprt_ctx,
2596 SUB_RETRY_SEND,
2597 &h1c->wait_event);
2598 }
2599 if (event_type != 0)
2600 return -1;
2601 return 0;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002602}
2603
2604/* Called from the upper layer, to receive data */
2605static size_t h1_rcv_buf(struct conn_stream *cs, struct buffer *buf, size_t count, int flags)
2606{
2607 struct h1s *h1s = cs->ctx;
Christopher Faulet539e0292018-11-19 10:40:09 +01002608 struct h1c *h1c = h1s->h1c;
Olivier Houcharddedd3062019-07-26 15:12:38 +02002609 struct h1m *h1m = (!conn_is_back(cs->conn) ? &h1s->req : &h1s->res);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002610 size_t ret = 0;
2611
Christopher Faulet6b81df72019-10-01 22:08:43 +02002612 TRACE_ENTER(H1_EV_STRM_RECV, h1c->conn, h1s,, (size_t[]){count});
Christopher Faulet539e0292018-11-19 10:40:09 +01002613 if (!(h1c->flags & H1C_F_IN_ALLOC))
Christopher Faulet30db3d72019-05-17 15:35:33 +02002614 ret = h1_process_input(h1c, buf, count);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002615 else
2616 TRACE_DEVEL("h1c ibuf not allocated", H1_EV_H1C_RECV|H1_EV_H1C_BLK, h1c->conn);
Christopher Faulet1be55f92018-10-02 15:59:23 +02002617
Christopher Faulete18777b2019-04-16 16:46:36 +02002618 if (flags & CO_RFL_BUF_FLUSH) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02002619 if (h1m->state != H1_MSG_TUNNEL || (h1m->state == H1_MSG_DATA && h1m->curr_len)) {
Christopher Faulete18777b2019-04-16 16:46:36 +02002620 h1s->flags |= H1S_F_BUF_FLUSH;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002621 TRACE_STATE("flush stream's buffer", H1_EV_STRM_RECV, h1c->conn, h1s);
2622 }
Christopher Faulete18777b2019-04-16 16:46:36 +02002623 }
Olivier Houchard02bac852019-08-22 18:34:25 +02002624 else {
Christopher Faulet6b81df72019-10-01 22:08:43 +02002625 if (h1s->flags & H1S_F_SPLICED_DATA) {
2626 h1s->flags &= ~H1S_F_SPLICED_DATA;
2627 TRACE_STATE("disable splicing", H1_EV_STRM_RECV, h1c->conn, h1s);
2628 }
2629 if (h1m->state != H1_MSG_DONE && !(h1c->wait_event.events & SUB_RETRY_RECV))
Willy Tarreau3c39a7d2019-06-14 14:42:29 +02002630 tasklet_wakeup(h1c->wait_event.tasklet);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002631 }
Christopher Faulet6b81df72019-10-01 22:08:43 +02002632 TRACE_LEAVE(H1_EV_STRM_RECV, h1c->conn, h1s,, (size_t[]){ret});
Christopher Faulet51dbc942018-09-13 09:05:15 +02002633 return ret;
2634}
2635
2636
2637/* Called from the upper layer, to send data */
2638static size_t h1_snd_buf(struct conn_stream *cs, struct buffer *buf, size_t count, int flags)
2639{
2640 struct h1s *h1s = cs->ctx;
2641 struct h1c *h1c;
Christopher Faulet5d37dac2018-11-22 10:58:42 +01002642 size_t total = 0;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002643
2644 if (!h1s)
Christopher Faulet5d37dac2018-11-22 10:58:42 +01002645 return 0;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002646 h1c = h1s->h1c;
Olivier Houchard305d5ab2019-07-24 18:07:06 +02002647
Christopher Faulet6b81df72019-10-01 22:08:43 +02002648 TRACE_ENTER(H1_EV_STRM_SEND, h1c->conn, h1s,, (size_t[]){count});
2649
Olivier Houchard305d5ab2019-07-24 18:07:06 +02002650 /* If we're not connected yet, or we're waiting for a handshake, stop
2651 * now, as we don't want to remove everything from the channel buffer
2652 * before we're sure we can send it.
2653 */
2654 if (!(h1c->conn->flags & CO_FL_CONNECTED) ||
Christopher Faulet6b81df72019-10-01 22:08:43 +02002655 (h1c->conn->flags & CO_FL_HANDSHAKE)) {
2656 TRACE_LEAVE(H1_EV_STRM_SEND, h1c->conn, h1s);
Christopher Faulet3b88b8d2018-10-26 17:36:03 +02002657 return 0;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002658 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02002659
Christopher Fauletc31872f2019-06-04 22:09:36 +02002660 while (count) {
Christopher Faulet5d37dac2018-11-22 10:58:42 +01002661 size_t ret = 0;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002662
Christopher Faulet5d37dac2018-11-22 10:58:42 +01002663 if (!(h1c->flags & (H1C_F_OUT_FULL|H1C_F_OUT_ALLOC)))
2664 ret = h1_process_output(h1c, buf, count);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002665 else
2666 TRACE_DEVEL("h1c obuf not allocated", H1_EV_STRM_SEND|H1_EV_H1S_BLK, h1c->conn, h1s);
Christopher Faulet5d37dac2018-11-22 10:58:42 +01002667 if (!ret)
2668 break;
2669 total += ret;
Christopher Fauletc31872f2019-06-04 22:09:36 +02002670 count -= ret;
Christopher Faulet5d37dac2018-11-22 10:58:42 +01002671 if (!h1_send(h1c))
2672 break;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002673 }
Christopher Fauletf96c3222018-11-20 18:38:01 +01002674
Christopher Faulet6b81df72019-10-01 22:08:43 +02002675 TRACE_LEAVE(H1_EV_STRM_SEND, h1c->conn, h1s,, (size_t[]){total});
Christopher Faulet5d37dac2018-11-22 10:58:42 +01002676 return total;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002677}
2678
Willy Tarreaue5733232019-05-22 19:24:06 +02002679#if defined(USE_LINUX_SPLICE)
Christopher Faulet1be55f92018-10-02 15:59:23 +02002680/* Send and get, using splicing */
2681static int h1_rcv_pipe(struct conn_stream *cs, struct pipe *pipe, unsigned int count)
2682{
2683 struct h1s *h1s = cs->ctx;
2684 struct h1m *h1m = (!conn_is_back(cs->conn) ? &h1s->req : &h1s->res);
2685 int ret = 0;
2686
Christopher Faulet6b81df72019-10-01 22:08:43 +02002687 TRACE_ENTER(H1_EV_STRM_RECV, cs->conn, h1s,, (size_t[]){count});
2688
Christopher Faulet9fa40c42019-11-05 16:24:27 +01002689 if ((h1m->flags & H1_MF_CHNK) || (h1m->state != H1_MSG_DATA && h1m->state != H1_MSG_TUNNEL)) {
Christopher Faulete18777b2019-04-16 16:46:36 +02002690 h1s->flags &= ~(H1S_F_BUF_FLUSH|H1S_F_SPLICED_DATA);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002691 TRACE_STATE("disable splicing on !(msg_data|msg_tunnel)", H1_EV_STRM_RECV, cs->conn, h1s);
2692 if (!(h1s->h1c->wait_event.events & SUB_RETRY_RECV)) {
2693 TRACE_STATE("restart receiving data, subscribing", H1_EV_STRM_RECV, cs->conn, h1s);
Christopher Faulet1146f972019-05-29 14:35:24 +02002694 cs->conn->xprt->subscribe(cs->conn, cs->conn->xprt_ctx, SUB_RETRY_RECV, &h1s->h1c->wait_event);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002695 }
Christopher Faulete18777b2019-04-16 16:46:36 +02002696 goto end;
2697 }
2698
Willy Tarreaufbdf90a2019-06-03 13:42:54 +02002699 if (h1s_data_pending(h1s)) {
Christopher Fauletd44ad5b2018-11-19 21:52:12 +01002700 h1s->flags |= H1S_F_BUF_FLUSH;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002701 TRACE_STATE("flush input buffer before splicing", H1_EV_STRM_RECV, cs->conn, h1s);
Christopher Faulet1be55f92018-10-02 15:59:23 +02002702 goto end;
Christopher Fauletd44ad5b2018-11-19 21:52:12 +01002703 }
2704
2705 h1s->flags &= ~H1S_F_BUF_FLUSH;
2706 h1s->flags |= H1S_F_SPLICED_DATA;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002707 TRACE_STATE("enable splicing", H1_EV_STRM_RECV, cs->conn, h1s);
Christopher Faulet1be55f92018-10-02 15:59:23 +02002708 if (h1m->state == H1_MSG_DATA && count > h1m->curr_len)
2709 count = h1m->curr_len;
Olivier Houcharde179d0e2019-03-21 18:27:17 +01002710 ret = cs->conn->xprt->rcv_pipe(cs->conn, cs->conn->xprt_ctx, pipe, count);
Christopher Faulet1146f972019-05-29 14:35:24 +02002711 if (h1m->state == H1_MSG_DATA && ret >= 0) {
Christopher Faulet1be55f92018-10-02 15:59:23 +02002712 h1m->curr_len -= ret;
Christopher Faulet6b81df72019-10-01 22:08:43 +02002713 if (!h1m->curr_len) {
Christopher Faulete18777b2019-04-16 16:46:36 +02002714 h1s->flags &= ~(H1S_F_BUF_FLUSH|H1S_F_SPLICED_DATA);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002715 TRACE_STATE("disable splicing on !curr_len", H1_EV_STRM_RECV, cs->conn, h1s);
2716 }
Christopher Faulete18777b2019-04-16 16:46:36 +02002717 }
2718
Christopher Faulet1be55f92018-10-02 15:59:23 +02002719 end:
Christopher Faulet038ad812019-04-17 11:03:22 +02002720 if (conn_xprt_read0_pending(cs->conn)) {
Willy Tarreauc493c9c2019-06-03 14:18:22 +02002721 h1s->flags |= H1S_F_REOS;
Christopher Fauletf3158e92019-11-15 11:14:23 +01002722 h1s->flags &= ~(H1S_F_BUF_FLUSH|H1S_F_SPLICED_DATA);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002723 TRACE_STATE("read0 on connection", H1_EV_STRM_RECV, cs->conn, h1s);
Christopher Faulet038ad812019-04-17 11:03:22 +02002724 }
Christopher Faulet6b81df72019-10-01 22:08:43 +02002725
2726 TRACE_LEAVE(H1_EV_STRM_RECV, cs->conn, h1s);
Christopher Faulet1be55f92018-10-02 15:59:23 +02002727 return ret;
Christopher Faulet1be55f92018-10-02 15:59:23 +02002728}
2729
2730static int h1_snd_pipe(struct conn_stream *cs, struct pipe *pipe)
2731{
2732 struct h1s *h1s = cs->ctx;
Christopher Faulet1be55f92018-10-02 15:59:23 +02002733 int ret = 0;
2734
Christopher Faulet6b81df72019-10-01 22:08:43 +02002735 TRACE_ENTER(H1_EV_STRM_SEND, cs->conn, h1s,, (size_t[]){pipe->data});
2736
Christopher Faulet1be55f92018-10-02 15:59:23 +02002737 if (b_data(&h1s->h1c->obuf))
2738 goto end;
2739
Olivier Houcharde179d0e2019-03-21 18:27:17 +01002740 ret = cs->conn->xprt->snd_pipe(cs->conn, cs->conn->xprt_ctx, pipe);
Christopher Faulet1be55f92018-10-02 15:59:23 +02002741 end:
Christopher Fauletd44ad5b2018-11-19 21:52:12 +01002742 if (pipe->data) {
Christopher Faulet6b81df72019-10-01 22:08:43 +02002743 if (!(h1s->h1c->wait_event.events & SUB_RETRY_SEND)) {
2744 TRACE_STATE("more data to send, subscribing", H1_EV_STRM_SEND, cs->conn, h1s);
Olivier Houcharde179d0e2019-03-21 18:27:17 +01002745 cs->conn->xprt->subscribe(cs->conn, cs->conn->xprt_ctx, SUB_RETRY_SEND, &h1s->h1c->wait_event);
Christopher Faulet6b81df72019-10-01 22:08:43 +02002746 }
Christopher Fauletd44ad5b2018-11-19 21:52:12 +01002747 }
Christopher Faulet6b81df72019-10-01 22:08:43 +02002748
2749 TRACE_LEAVE(H1_EV_STRM_SEND, cs->conn, h1s);
Christopher Faulet1be55f92018-10-02 15:59:23 +02002750 return ret;
2751}
2752#endif
2753
Olivier Houchard9b8e11e2019-10-25 16:19:26 +02002754static int h1_ctl(struct connection *conn, enum mux_ctl_type mux_ctl, void *output)
2755{
2756 int ret = 0;
2757 switch (mux_ctl) {
2758 case MUX_STATUS:
2759 if (conn->flags & CO_FL_CONNECTED)
2760 ret |= MUX_STATUS_READY;
2761 return ret;
2762 default:
2763 return -1;
2764 }
2765}
2766
Olivier Houcharda8f6b432018-12-21 15:20:29 +01002767/* for debugging with CLI's "show fd" command */
2768static void h1_show_fd(struct buffer *msg, struct connection *conn)
2769{
2770 struct h1c *h1c = conn->ctx;
2771 struct h1s *h1s = h1c->h1s;
2772
Christopher Fauletf376a312019-01-04 15:16:06 +01002773 chunk_appendf(msg, " h1c.flg=0x%x .sub=%d .ibuf=%u@%p+%u/%u .obuf=%u@%p+%u/%u",
2774 h1c->flags, h1c->wait_event.events,
Olivier Houcharda8f6b432018-12-21 15:20:29 +01002775 (unsigned int)b_data(&h1c->ibuf), b_orig(&h1c->ibuf),
2776 (unsigned int)b_head_ofs(&h1c->ibuf), (unsigned int)b_size(&h1c->ibuf),
2777 (unsigned int)b_data(&h1c->obuf), b_orig(&h1c->obuf),
2778 (unsigned int)b_head_ofs(&h1c->obuf), (unsigned int)b_size(&h1c->obuf));
2779
2780 if (h1s) {
2781 char *method;
2782
2783 if (h1s->meth < HTTP_METH_OTHER)
2784 method = http_known_methods[h1s->meth].ptr;
2785 else
2786 method = "UNKNOWN";
2787 chunk_appendf(msg, " h1s=%p h1s.flg=0x%x .req.state=%s .res.state=%s"
2788 " .meth=%s status=%d",
2789 h1s, h1s->flags,
2790 h1m_state_str(h1s->req.state),
2791 h1m_state_str(h1s->res.state), method, h1s->status);
2792 if (h1s->cs)
2793 chunk_appendf(msg, " .cs.flg=0x%08x .cs.data=%p",
2794 h1s->cs->flags, h1s->cs->data);
2795 }
Christopher Faulet98fbe952019-07-22 16:18:24 +02002796}
2797
2798
2799/* Add an entry in the headers map. Returns -1 on error and 0 on success. */
2800static int add_hdr_case_adjust(const char *from, const char *to, char **err)
2801{
2802 struct h1_hdr_entry *entry;
2803
2804 /* Be sure there is a non-empty <to> */
2805 if (!strlen(to)) {
2806 memprintf(err, "expect <to>");
2807 return -1;
2808 }
2809
2810 /* Be sure only the case differs between <from> and <to> */
2811 if (strcasecmp(from, to)) {
2812 memprintf(err, "<from> and <to> must not differ execpt the case");
2813 return -1;
2814 }
2815
2816 /* Be sure <from> does not already existsin the tree */
2817 if (ebis_lookup(&hdrs_map.map, from)) {
2818 memprintf(err, "duplicate entry '%s'", from);
2819 return -1;
2820 }
2821
2822 /* Create the entry and insert it in the tree */
2823 entry = malloc(sizeof(*entry));
2824 if (!entry) {
2825 memprintf(err, "out of memory");
2826 return -1;
2827 }
2828
2829 entry->node.key = strdup(from);
2830 entry->name.ptr = strdup(to);
2831 entry->name.len = strlen(to);
2832 if (!entry->node.key || !entry->name.ptr) {
2833 free(entry->node.key);
2834 free(entry->name.ptr);
2835 free(entry);
2836 memprintf(err, "out of memory");
2837 return -1;
2838 }
2839 ebis_insert(&hdrs_map.map, &entry->node);
2840 return 0;
2841}
2842
2843static void h1_hdeaders_case_adjust_deinit()
2844{
2845 struct ebpt_node *node, *next;
2846 struct h1_hdr_entry *entry;
2847
2848 node = ebpt_first(&hdrs_map.map);
2849 while (node) {
2850 next = ebpt_next(node);
2851 ebpt_delete(node);
2852 entry = container_of(node, struct h1_hdr_entry, node);
2853 free(entry->node.key);
2854 free(entry->name.ptr);
2855 free(entry);
2856 node = next;
2857 }
2858 free(hdrs_map.name);
Olivier Houcharda8f6b432018-12-21 15:20:29 +01002859}
2860
Christopher Faulet98fbe952019-07-22 16:18:24 +02002861static int cfg_h1_headers_case_adjust_postparser()
2862{
2863 FILE *file = NULL;
2864 char *c, *key_beg, *key_end, *value_beg, *value_end;
2865 char *err;
2866 int rc, line = 0, err_code = 0;
2867
2868 if (!hdrs_map.name)
2869 goto end;
2870
2871 file = fopen(hdrs_map.name, "r");
2872 if (!file) {
2873 ha_alert("config : h1-outgoing-headers-case-adjust-file '%s': failed to open file.\n",
2874 hdrs_map.name);
2875 err_code |= ERR_ALERT | ERR_FATAL;
2876 goto end;
2877 }
2878
2879 /* now parse all lines. The file may contain only two header name per
2880 * line, separated by spaces. All heading and trailing spaces will be
2881 * ignored. Lines starting with a # are ignored.
2882 */
2883 while (fgets(trash.area, trash.size, file) != NULL) {
2884 line++;
2885 c = trash.area;
2886
2887 /* strip leading spaces and tabs */
2888 while (*c == ' ' || *c == '\t')
2889 c++;
2890
2891 /* ignore emptu lines, or lines beginning with a dash */
2892 if (*c == '#' || *c == '\0' || *c == '\r' || *c == '\n')
2893 continue;
2894
2895 /* look for the end of the key */
2896 key_beg = c;
2897 while (*c != '\0' && *c != ' ' && *c != '\t' && *c != '\n' && *c != '\r')
2898 c++;
2899 key_end = c;
2900
2901 /* strip middle spaces and tabs */
2902 while (*c == ' ' || *c == '\t')
2903 c++;
2904
2905 /* look for the end of the value, it is the end of the line */
2906 value_beg = c;
2907 while (*c && *c != '\n' && *c != '\r')
2908 c++;
2909 value_end = c;
2910
2911 /* trim possibly trailing spaces and tabs */
2912 while (value_end > value_beg && (value_end[-1] == ' ' || value_end[-1] == '\t'))
2913 value_end--;
2914
2915 /* set final \0 and check entries */
2916 *key_end = '\0';
2917 *value_end = '\0';
2918
2919 err = NULL;
2920 rc = add_hdr_case_adjust(key_beg, value_beg, &err);
2921 if (rc < 0) {
Christopher Faulet98fbe952019-07-22 16:18:24 +02002922 ha_alert("config : h1-outgoing-headers-case-adjust-file '%s' : %s at line %d.\n",
2923 hdrs_map.name, err, line);
2924 err_code |= ERR_ALERT | ERR_FATAL;
Christopher Fauletcac5c092019-07-30 16:51:42 +02002925 free(err);
Christopher Faulet98fbe952019-07-22 16:18:24 +02002926 goto end;
2927 }
2928 if (rc > 0) {
Christopher Faulet98fbe952019-07-22 16:18:24 +02002929 ha_warning("config : h1-outgoing-headers-case-adjust-file '%s' : %s at line %d.\n",
2930 hdrs_map.name, err, line);
2931 err_code |= ERR_WARN;
Christopher Fauletcac5c092019-07-30 16:51:42 +02002932 free(err);
Christopher Faulet98fbe952019-07-22 16:18:24 +02002933 }
2934 }
2935
2936 end:
2937 if (file)
2938 fclose(file);
2939 hap_register_post_deinit(h1_hdeaders_case_adjust_deinit);
2940 return err_code;
2941}
2942
2943
2944/* config parser for global "h1-outgoing-header-case-adjust" */
2945static int cfg_parse_h1_header_case_adjust(char **args, int section_type, struct proxy *curpx,
2946 struct proxy *defpx, const char *file, int line,
2947 char **err)
2948{
2949 if (too_many_args(2, args, err, NULL))
2950 return -1;
2951 if (!*(args[1]) || !*(args[2])) {
2952 memprintf(err, "'%s' expects <from> and <to> as argument.", args[0]);
2953 return -1;
2954 }
2955 return add_hdr_case_adjust(args[1], args[2], err);
2956}
2957
2958/* config parser for global "h1-outgoing-headers-case-adjust-file" */
2959static int cfg_parse_h1_headers_case_adjust_file(char **args, int section_type, struct proxy *curpx,
2960 struct proxy *defpx, const char *file, int line,
2961 char **err)
2962{
2963 if (too_many_args(1, args, err, NULL))
2964 return -1;
2965 if (!*(args[1])) {
2966 memprintf(err, "'%s' expects <file> as argument.", args[0]);
2967 return -1;
2968 }
2969 free(hdrs_map.name);
2970 hdrs_map.name = strdup(args[1]);
2971 return 0;
2972}
2973
2974
2975/* config keyword parsers */
2976static struct cfg_kw_list cfg_kws = {{ }, {
2977 { CFG_GLOBAL, "h1-case-adjust", cfg_parse_h1_header_case_adjust },
2978 { CFG_GLOBAL, "h1-case-adjust-file", cfg_parse_h1_headers_case_adjust_file },
2979 { 0, NULL, NULL },
2980 }
2981};
2982
2983INITCALL1(STG_REGISTER, cfg_register_keywords, &cfg_kws);
2984REGISTER_CONFIG_POSTPARSER("h1-headers-map", cfg_h1_headers_case_adjust_postparser);
2985
2986
Christopher Faulet51dbc942018-09-13 09:05:15 +02002987/****************************************/
2988/* MUX initialization and instanciation */
2989/****************************************/
2990
2991/* The mux operations */
Willy Tarreauf77a1582019-01-10 10:00:08 +01002992static const struct mux_ops mux_h1_ops = {
Christopher Faulet51dbc942018-09-13 09:05:15 +02002993 .init = h1_init,
2994 .wake = h1_wake,
2995 .attach = h1_attach,
2996 .get_first_cs = h1_get_first_cs,
Christopher Fauletfeb11742018-11-29 15:12:34 +01002997 .get_cs_info = h1_get_cs_info,
Christopher Faulet51dbc942018-09-13 09:05:15 +02002998 .detach = h1_detach,
2999 .destroy = h1_destroy,
3000 .avail_streams = h1_avail_streams,
Willy Tarreau00f18a32019-01-26 12:19:01 +01003001 .used_streams = h1_used_streams,
Christopher Faulet51dbc942018-09-13 09:05:15 +02003002 .rcv_buf = h1_rcv_buf,
3003 .snd_buf = h1_snd_buf,
Willy Tarreaue5733232019-05-22 19:24:06 +02003004#if defined(USE_LINUX_SPLICE)
Christopher Faulet1be55f92018-10-02 15:59:23 +02003005 .rcv_pipe = h1_rcv_pipe,
3006 .snd_pipe = h1_snd_pipe,
3007#endif
Christopher Faulet51dbc942018-09-13 09:05:15 +02003008 .subscribe = h1_subscribe,
3009 .unsubscribe = h1_unsubscribe,
3010 .shutr = h1_shutr,
3011 .shutw = h1_shutw,
Olivier Houcharda8f6b432018-12-21 15:20:29 +01003012 .show_fd = h1_show_fd,
Olivier Houchard9a86fcb2018-12-11 16:47:14 +01003013 .reset = h1_reset,
Olivier Houchard9b8e11e2019-10-25 16:19:26 +02003014 .ctl = h1_ctl,
Christopher Faulet9f38f5a2019-04-03 09:53:32 +02003015 .flags = MX_FL_HTX,
Willy Tarreau0a7a4fb2019-05-22 11:36:54 +02003016 .name = "H1",
Christopher Faulet51dbc942018-09-13 09:05:15 +02003017};
3018
3019
3020/* this mux registers default HTX proto */
3021static struct mux_proto_list mux_proto_htx =
Christopher Fauletc985f6c2019-07-15 11:42:52 +02003022{ .token = IST(""), .mode = PROTO_MODE_HTTP, .side = PROTO_SIDE_BOTH, .mux = &mux_h1_ops };
Christopher Faulet51dbc942018-09-13 09:05:15 +02003023
Willy Tarreau0108d902018-11-25 19:14:37 +01003024INITCALL1(STG_REGISTER, register_mux_proto, &mux_proto_htx);
3025
Christopher Faulet51dbc942018-09-13 09:05:15 +02003026/*
3027 * Local variables:
3028 * c-indent-level: 8
3029 * c-basic-offset: 8
3030 * End:
3031 */