blob: 46bc33c908ea3591a40e8c5ba49169d7472a65af [file] [log] [blame]
Christopher Faulet51dbc942018-09-13 09:05:15 +02001/*
2 * HTT/1 mux-demux for connections
3 *
4 * Copyright 2018 Christopher Faulet <cfaulet@haproxy.com>
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
10 *
11 */
12#include <common/cfgparse.h>
13#include <common/config.h>
Willy Tarreauafba57a2018-12-11 13:44:24 +010014#include <common/h1.h>
Christopher Faulet0ef372a2019-04-08 10:57:20 +020015#include <common/h2.h>
Willy Tarreaub96b77e2018-12-11 10:22:41 +010016#include <common/htx.h>
Willy Tarreau0108d902018-11-25 19:14:37 +010017#include <common/initcall.h>
Christopher Faulet51dbc942018-09-13 09:05:15 +020018
Christopher Faulet1be55f92018-10-02 15:59:23 +020019#include <types/pipe.h>
Christopher Fauletf2824e62018-10-01 12:12:37 +020020#include <types/proxy.h>
21#include <types/session.h>
22
Christopher Faulet51dbc942018-09-13 09:05:15 +020023#include <proto/connection.h>
Christopher Faulet9768c262018-10-22 09:34:31 +020024#include <proto/http_htx.h>
Christopher Faulet129817b2018-09-20 16:14:40 +020025#include <proto/log.h>
Olivier Houchard44d59142018-12-13 18:46:22 +010026#include <proto/session.h>
Christopher Faulet51dbc942018-09-13 09:05:15 +020027#include <proto/stream.h>
28#include <proto/stream_interface.h>
29
30/*
31 * H1 Connection flags (32 bits)
32 */
33#define H1C_F_NONE 0x00000000
34
35/* Flags indicating why writing output data are blocked */
36#define H1C_F_OUT_ALLOC 0x00000001 /* mux is blocked on lack of output buffer */
37#define H1C_F_OUT_FULL 0x00000002 /* mux is blocked on output buffer full */
38/* 0x00000004 - 0x00000008 unused */
39
40/* Flags indicating why reading input data are blocked. */
41#define H1C_F_IN_ALLOC 0x00000010 /* mux is blocked on lack of input buffer */
42#define H1C_F_IN_FULL 0x00000020 /* mux is blocked on input buffer full */
Christopher Fauletcb55f482018-12-10 11:56:47 +010043#define H1C_F_IN_BUSY 0x00000040
Christopher Faulet539e0292018-11-19 10:40:09 +010044/* 0x00000040 - 0x00000800 unused */
Christopher Faulet51dbc942018-09-13 09:05:15 +020045
46#define H1C_F_CS_ERROR 0x00001000 /* connection must be closed ASAP because an error occurred */
47#define H1C_F_CS_SHUTW_NOW 0x00002000 /* connection must be shut down for writes ASAP */
Christopher Faulet666a0c42019-01-08 11:12:04 +010048#define H1C_F_CS_SHUTDOWN 0x00004000 /* connection is shut down for read and writes */
Christopher Faulet3b88b8d2018-10-26 17:36:03 +020049#define H1C_F_CS_WAIT_CONN 0x00008000 /* waiting for the connection establishment */
Christopher Faulet51dbc942018-09-13 09:05:15 +020050
Christopher Fauletf2824e62018-10-01 12:12:37 +020051#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 +020052#define H1C_F_UPG_H2C 0x00020000 /* set if an upgrade to h2 should be done */
Christopher Faulet129817b2018-09-20 16:14:40 +020053
Christopher Faulet51dbc942018-09-13 09:05:15 +020054/*
55 * H1 Stream flags (32 bits)
56 */
Christopher Faulet129817b2018-09-20 16:14:40 +020057#define H1S_F_NONE 0x00000000
58#define H1S_F_ERROR 0x00000001 /* An error occurred on the H1 stream */
Christopher Fauletf2824e62018-10-01 12:12:37 +020059#define H1S_F_REQ_ERROR 0x00000002 /* An error occurred during the request parsing/xfer */
60#define H1S_F_RES_ERROR 0x00000004 /* An error occurred during the response parsing/xfer */
Christopher Faulet539e0292018-11-19 10:40:09 +010061/* 0x00000008 unused */
Christopher Fauletf2824e62018-10-01 12:12:37 +020062#define H1S_F_WANT_KAL 0x00000010
63#define H1S_F_WANT_TUN 0x00000020
64#define H1S_F_WANT_CLO 0x00000040
65#define H1S_F_WANT_MSK 0x00000070
66#define H1S_F_NOT_FIRST 0x00000080 /* The H1 stream is not the first one */
Christopher Faulet539e0292018-11-19 10:40:09 +010067#define H1S_F_BUF_FLUSH 0x00000100 /* Flush input buffer and don't read more data */
Christopher Fauletd44ad5b2018-11-19 21:52:12 +010068#define H1S_F_SPLICED_DATA 0x00000200 /* Set when the kernel splicing is in used */
Willy Tarreau34d23482019-01-03 17:46:56 +010069#define H1S_F_HAVE_I_EOD 0x00000400 /* Set during input process to know the last empty chunk was processed */
70#define H1S_F_HAVE_I_TLR 0x00000800 /* Set during input process to know the trailers were processed */
71#define H1S_F_HAVE_O_EOD 0x00001000 /* Set during output process to know the last empty chunk was processed */
72#define H1S_F_HAVE_O_TLR 0x00002000 /* Set during output process to know the trailers were processed */
Christopher Faulet51dbc942018-09-13 09:05:15 +020073
74/* H1 connection descriptor */
Christopher Faulet51dbc942018-09-13 09:05:15 +020075struct h1c {
76 struct connection *conn;
77 struct proxy *px;
78 uint32_t flags; /* Connection flags: H1C_F_* */
79
80 struct buffer ibuf; /* Input buffer to store data before parsing */
81 struct buffer obuf; /* Output buffer to store data after reformatting */
82
83 struct buffer_wait buf_wait; /* Wait list for buffer allocation */
84 struct wait_event wait_event; /* To be used if we're waiting for I/Os */
85
86 struct h1s *h1s; /* H1 stream descriptor */
Christopher Fauletb8093cf2019-01-03 16:27:28 +010087 struct task *task; /* timeout management task */
88 int timeout; /* idle timeout duration in ticks */
89 int shut_timeout; /* idle timeout duration in ticks after stream shutdown */
Christopher Faulet51dbc942018-09-13 09:05:15 +020090};
91
92/* H1 stream descriptor */
93struct h1s {
94 struct h1c *h1c;
95 struct conn_stream *cs;
Christopher Fauletfeb11742018-11-29 15:12:34 +010096 struct cs_info csinfo; /* CS info, only used for client connections */
97 uint32_t flags; /* Connection flags: H1S_F_* */
Christopher Faulet51dbc942018-09-13 09:05:15 +020098
Christopher Faulet51dbc942018-09-13 09:05:15 +020099 struct wait_event *recv_wait; /* Address of the wait_event the conn_stream associated is waiting on */
100 struct wait_event *send_wait; /* Address of the wait_event the conn_stream associated is waiting on */
Christopher Faulet129817b2018-09-20 16:14:40 +0200101
Olivier Houchardf502aca2018-12-14 19:42:40 +0100102 struct session *sess; /* Associated session */
Christopher Faulet129817b2018-09-20 16:14:40 +0200103 struct h1m req;
104 struct h1m res;
105
106 enum http_meth_t meth; /* HTTP resquest method */
107 uint16_t status; /* HTTP response status */
Christopher Faulet51dbc942018-09-13 09:05:15 +0200108};
109
110/* the h1c and h1s pools */
Willy Tarreau8ceae722018-11-26 11:58:30 +0100111DECLARE_STATIC_POOL(pool_head_h1c, "h1c", sizeof(struct h1c));
112DECLARE_STATIC_POOL(pool_head_h1s, "h1s", sizeof(struct h1s));
Christopher Faulet51dbc942018-09-13 09:05:15 +0200113
Christopher Faulet51dbc942018-09-13 09:05:15 +0200114static int h1_recv(struct h1c *h1c);
115static int h1_send(struct h1c *h1c);
116static int h1_process(struct h1c *h1c);
117static struct task *h1_io_cb(struct task *t, void *ctx, unsigned short state);
Christopher Faulet666a0c42019-01-08 11:12:04 +0100118static void h1_shutw_conn(struct connection *conn, enum cs_shw_mode mode);
Christopher Fauletb8093cf2019-01-03 16:27:28 +0100119static struct task *h1_timeout_task(struct task *t, void *context, unsigned short state);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200120
121/*****************************************************/
122/* functions below are for dynamic buffer management */
123/*****************************************************/
124/*
125 * Indicates whether or not the we may call the h1_recv() function to
126 * attempt to receive data into the buffer and/or parse pending data. The
127 * condition is a bit complex due to some API limits for now. The rules are the
128 * following :
129 * - if an error or a shutdown was detected on the connection and the buffer
130 * is empty, we must not attempt to receive
131 * - if the input buffer failed to be allocated, we must not try to receive
132 * and we know there is nothing pending
133 * - if no flag indicates a blocking condition, we may attempt to receive,
134 * regardless of whether the input buffer is full or not, so that only de
135 * receiving part decides whether or not to block. This is needed because
136 * the connection API indeed prevents us from re-enabling receipt that is
137 * already enabled in a polled state, so we must always immediately stop as
138 * soon as the mux can't proceed so as never to hit an end of read with data
139 * pending in the buffers.
140 * - otherwise must may not attempt to receive
141 */
142static inline int h1_recv_allowed(const struct h1c *h1c)
143{
Christopher Faulet666a0c42019-01-08 11:12:04 +0100144 if (b_data(&h1c->ibuf) == 0 && (h1c->flags & (H1C_F_CS_ERROR|H1C_F_CS_SHUTDOWN)))
Christopher Faulet51dbc942018-09-13 09:05:15 +0200145 return 0;
146
Christopher Fauletcf56b992018-12-11 16:12:31 +0100147 if (h1c->conn->flags & CO_FL_ERROR || conn_xprt_read0_pending(h1c->conn))
148 return 0;
149
Christopher Fauletcb55f482018-12-10 11:56:47 +0100150 if (!(h1c->flags & (H1C_F_IN_ALLOC|H1C_F_IN_FULL|H1C_F_IN_BUSY)))
Christopher Faulet51dbc942018-09-13 09:05:15 +0200151 return 1;
152
153 return 0;
154}
155
156/*
157 * Tries to grab a buffer and to re-enables processing on mux <target>. The h1
158 * flags are used to figure what buffer was requested. It returns 1 if the
159 * allocation succeeds, in which case the connection is woken up, or 0 if it's
160 * impossible to wake up and we prefer to be woken up later.
161 */
162static int h1_buf_available(void *target)
163{
164 struct h1c *h1c = target;
165
166 if ((h1c->flags & H1C_F_IN_ALLOC) && b_alloc_margin(&h1c->ibuf, 0)) {
167 h1c->flags &= ~H1C_F_IN_ALLOC;
168 if (h1_recv_allowed(h1c))
169 tasklet_wakeup(h1c->wait_event.task);
170 return 1;
171 }
172
173 if ((h1c->flags & H1C_F_OUT_ALLOC) && b_alloc_margin(&h1c->obuf, 0)) {
174 h1c->flags &= ~H1C_F_OUT_ALLOC;
175 tasklet_wakeup(h1c->wait_event.task);
176 return 1;
177 }
178
Christopher Faulet51dbc942018-09-13 09:05:15 +0200179 return 0;
180}
181
182/*
183 * Allocate a buffer. If if fails, it adds the mux in buffer wait queue.
184 */
185static inline struct buffer *h1_get_buf(struct h1c *h1c, struct buffer *bptr)
186{
187 struct buffer *buf = NULL;
188
189 if (likely(LIST_ISEMPTY(&h1c->buf_wait.list)) &&
190 unlikely((buf = b_alloc_margin(bptr, 0)) == NULL)) {
191 h1c->buf_wait.target = h1c;
192 h1c->buf_wait.wakeup_cb = h1_buf_available;
193 HA_SPIN_LOCK(BUF_WQ_LOCK, &buffer_wq_lock);
194 LIST_ADDQ(&buffer_wq, &h1c->buf_wait.list);
195 HA_SPIN_UNLOCK(BUF_WQ_LOCK, &buffer_wq_lock);
196 __conn_xprt_stop_recv(h1c->conn);
197 }
198 return buf;
199}
200
201/*
202 * Release a buffer, if any, and try to wake up entities waiting in the buffer
203 * wait queue.
204 */
205static inline void h1_release_buf(struct h1c *h1c, struct buffer *bptr)
206{
207 if (bptr->size) {
208 b_free(bptr);
209 offer_buffers(h1c->buf_wait.target, tasks_run_queue);
210 }
211}
212
Willy Tarreau00f18a32019-01-26 12:19:01 +0100213/* returns the number of streams in use on a connection to figure if it's
214 * idle or not. We can't have an h1s without a CS so checking h1s is fine,
215 * as the caller will want to know if it was the last one after a detach().
216 */
217static int h1_used_streams(struct connection *conn)
Christopher Faulet51dbc942018-09-13 09:05:15 +0200218{
Willy Tarreau3d2ee552018-12-19 14:12:10 +0100219 struct h1c *h1c = conn->ctx;
Christopher Faulet51dbc942018-09-13 09:05:15 +0200220
Willy Tarreau00f18a32019-01-26 12:19:01 +0100221 return h1c->h1s ? 1 : 0;
Christopher Faulet51dbc942018-09-13 09:05:15 +0200222}
223
Willy Tarreau00f18a32019-01-26 12:19:01 +0100224/* returns the number of streams still available on a connection */
225static int h1_avail_streams(struct connection *conn)
Olivier Houchard8defe4b2018-12-02 01:31:17 +0100226{
Willy Tarreau00f18a32019-01-26 12:19:01 +0100227 return 1 - h1_used_streams(conn);
Olivier Houchard8defe4b2018-12-02 01:31:17 +0100228}
Christopher Faulet51dbc942018-09-13 09:05:15 +0200229
Willy Tarreau00f18a32019-01-26 12:19:01 +0100230
Christopher Faulet51dbc942018-09-13 09:05:15 +0200231/*****************************************************************/
232/* functions below are dedicated to the mux setup and management */
233/*****************************************************************/
Christopher Faulet47365272018-10-31 17:40:50 +0100234static struct conn_stream *h1s_new_cs(struct h1s *h1s)
235{
236 struct conn_stream *cs;
237
238 cs = cs_new(h1s->h1c->conn);
239 if (!cs)
240 goto err;
241 h1s->cs = cs;
242 cs->ctx = h1s;
243
244 if (h1s->flags & H1S_F_NOT_FIRST)
245 cs->flags |= CS_FL_NOT_FIRST;
246
247 if (stream_create_from_cs(cs) < 0)
248 goto err;
249 return cs;
250
251 err:
252 cs_free(cs);
253 h1s->cs = NULL;
254 return NULL;
255}
256
Olivier Houchardf502aca2018-12-14 19:42:40 +0100257static struct h1s *h1s_create(struct h1c *h1c, struct conn_stream *cs, struct session *sess)
Christopher Faulet51dbc942018-09-13 09:05:15 +0200258{
259 struct h1s *h1s;
260
261 h1s = pool_alloc(pool_head_h1s);
262 if (!h1s)
Christopher Faulet47365272018-10-31 17:40:50 +0100263 goto fail;
Christopher Faulet51dbc942018-09-13 09:05:15 +0200264
265 h1s->h1c = h1c;
266 h1c->h1s = h1s;
267
Olivier Houchardf502aca2018-12-14 19:42:40 +0100268 h1s->sess = sess;
269
Christopher Faulet51dbc942018-09-13 09:05:15 +0200270 h1s->cs = NULL;
Christopher Fauletb992af02019-03-28 15:42:24 +0100271 h1s->flags = H1S_F_WANT_KAL;
Christopher Faulet51dbc942018-09-13 09:05:15 +0200272
273 h1s->recv_wait = NULL;
274 h1s->send_wait = NULL;
Christopher Faulet129817b2018-09-20 16:14:40 +0200275
276 h1m_init_req(&h1s->req);
Christopher Fauletb992af02019-03-28 15:42:24 +0100277 h1s->req.flags |= (H1_MF_NO_PHDR|H1_MF_CLEAN_CONN_HDR);
Christopher Faulet9768c262018-10-22 09:34:31 +0200278
Christopher Faulet129817b2018-09-20 16:14:40 +0200279 h1m_init_res(&h1s->res);
Christopher Fauletb992af02019-03-28 15:42:24 +0100280 h1s->res.flags |= (H1_MF_NO_PHDR|H1_MF_CLEAN_CONN_HDR);
Christopher Faulet129817b2018-09-20 16:14:40 +0200281
282 h1s->status = 0;
283 h1s->meth = HTTP_METH_OTHER;
284
Christopher Faulet47365272018-10-31 17:40:50 +0100285 if (h1c->flags & H1C_F_WAIT_NEXT_REQ)
286 h1s->flags |= H1S_F_NOT_FIRST;
287 h1c->flags &= ~H1C_F_WAIT_NEXT_REQ;
288
Christopher Faulet129817b2018-09-20 16:14:40 +0200289 if (!conn_is_back(h1c->conn)) {
290 if (h1c->px->options2 & PR_O2_REQBUG_OK)
291 h1s->req.err_pos = -1;
Christopher Faulete9b70722019-04-08 10:46:02 +0200292
293 /* For frontend connections we should always have a session */
294 if (!sess)
295 sess = h1c->conn->owner;
296
297 h1s->csinfo.create_date = sess->accept_date;
298 h1s->csinfo.tv_create = sess->tv_accept;
299 h1s->csinfo.t_handshake = sess->t_handshake;
300 h1s->csinfo.t_idle = -1;
Christopher Faulet129817b2018-09-20 16:14:40 +0200301 }
302 else {
303 if (h1c->px->options2 & PR_O2_RSPBUG_OK)
304 h1s->res.err_pos = -1;
Christopher Fauletf2824e62018-10-01 12:12:37 +0200305
Christopher Fauletfeb11742018-11-29 15:12:34 +0100306 h1s->csinfo.create_date = date;
307 h1s->csinfo.tv_create = now;
308 h1s->csinfo.t_handshake = 0;
309 h1s->csinfo.t_idle = -1;
Christopher Faulete9b70722019-04-08 10:46:02 +0200310 }
Christopher Fauletfeb11742018-11-29 15:12:34 +0100311
Christopher Faulete9b70722019-04-08 10:46:02 +0200312 /* If a conn_stream already exists, attach it to this H1S. Otherwise we
313 * create a new one.
314 */
315 if (cs) {
Christopher Fauletf2824e62018-10-01 12:12:37 +0200316 cs->ctx = h1s;
317 h1s->cs = cs;
318 }
Christopher Faulet47365272018-10-31 17:40:50 +0100319 else {
320 cs = h1s_new_cs(h1s);
321 if (!cs)
322 goto fail;
323 }
Christopher Faulet51dbc942018-09-13 09:05:15 +0200324 return h1s;
Christopher Faulet47365272018-10-31 17:40:50 +0100325
326 fail:
327 pool_free(pool_head_h1s, h1s);
328 return NULL;
Christopher Faulet51dbc942018-09-13 09:05:15 +0200329}
330
331static void h1s_destroy(struct h1s *h1s)
332{
Christopher Fauletf2824e62018-10-01 12:12:37 +0200333 if (h1s) {
334 struct h1c *h1c = h1s->h1c;
Christopher Faulet51dbc942018-09-13 09:05:15 +0200335
Christopher Fauletf2824e62018-10-01 12:12:37 +0200336 h1c->h1s = NULL;
Christopher Faulet51dbc942018-09-13 09:05:15 +0200337
Christopher Fauletf2824e62018-10-01 12:12:37 +0200338 if (h1s->recv_wait != NULL)
Willy Tarreau4f6516d2018-12-19 13:59:17 +0100339 h1s->recv_wait->events &= ~SUB_RETRY_RECV;
Christopher Fauletf2824e62018-10-01 12:12:37 +0200340 if (h1s->send_wait != NULL)
Willy Tarreau4f6516d2018-12-19 13:59:17 +0100341 h1s->send_wait->events &= ~SUB_RETRY_SEND;
Christopher Fauletf2824e62018-10-01 12:12:37 +0200342
Christopher Fauletcb55f482018-12-10 11:56:47 +0100343 h1c->flags &= ~H1C_F_IN_BUSY;
Christopher Faulet47365272018-10-31 17:40:50 +0100344 h1c->flags |= H1C_F_WAIT_NEXT_REQ;
345 if (h1s->flags & (H1S_F_REQ_ERROR|H1S_F_RES_ERROR))
346 h1c->flags |= H1C_F_CS_ERROR;
Christopher Fauletf2824e62018-10-01 12:12:37 +0200347 pool_free(pool_head_h1s, h1s);
348 }
Christopher Faulet51dbc942018-09-13 09:05:15 +0200349}
350
Christopher Fauletfeb11742018-11-29 15:12:34 +0100351static const struct cs_info *h1_get_cs_info(struct conn_stream *cs)
352{
353 struct h1s *h1s = cs->ctx;
354
355 if (h1s && !conn_is_back(cs->conn))
356 return &h1s->csinfo;
357 return NULL;
358}
359
Christopher Faulet51dbc942018-09-13 09:05:15 +0200360/*
Christopher Faulet51f73eb2019-04-08 11:22:47 +0200361 * Initialize the mux once it's attached. It is expected that conn->ctx points
362 * to the existing conn_stream (for outgoing connections or for incoming onces
363 * during a mux upgrade) or NULL (for incoming ones during the connexion
364 * establishment). <input> is always used as Input buffer and may contain
365 * data. It is the caller responsibility to not reuse it anymore. Returns < 0 on
366 * error.
Christopher Faulet51dbc942018-09-13 09:05:15 +0200367 */
Christopher Faulet51f73eb2019-04-08 11:22:47 +0200368static int h1_init(struct connection *conn, struct proxy *proxy, struct session *sess,
369 struct buffer *input)
Christopher Faulet51dbc942018-09-13 09:05:15 +0200370{
Christopher Faulet51dbc942018-09-13 09:05:15 +0200371 struct h1c *h1c;
Christopher Fauletb8093cf2019-01-03 16:27:28 +0100372 struct task *t = NULL;
Christopher Faulet51dbc942018-09-13 09:05:15 +0200373
374 h1c = pool_alloc(pool_head_h1c);
375 if (!h1c)
376 goto fail_h1c;
377 h1c->conn = conn;
378 h1c->px = proxy;
379
380 h1c->flags = H1C_F_NONE;
Christopher Faulet51f73eb2019-04-08 11:22:47 +0200381 h1c->ibuf = *input;
Christopher Faulet51dbc942018-09-13 09:05:15 +0200382 h1c->obuf = BUF_NULL;
383 h1c->h1s = NULL;
Christopher Faulet51f73eb2019-04-08 11:22:47 +0200384 h1c->task = NULL;
Christopher Faulet51dbc942018-09-13 09:05:15 +0200385
Christopher Faulet51dbc942018-09-13 09:05:15 +0200386 LIST_INIT(&h1c->buf_wait.list);
387 h1c->wait_event.task = tasklet_new();
388 if (!h1c->wait_event.task)
389 goto fail;
390 h1c->wait_event.task->process = h1_io_cb;
391 h1c->wait_event.task->context = h1c;
Willy Tarreau4f6516d2018-12-19 13:59:17 +0100392 h1c->wait_event.events = 0;
Christopher Faulet51dbc942018-09-13 09:05:15 +0200393
Christopher Faulete9b70722019-04-08 10:46:02 +0200394 if (conn_is_back(conn)) {
Christopher Fauletb8093cf2019-01-03 16:27:28 +0100395 h1c->shut_timeout = h1c->timeout = proxy->timeout.server;
396 if (tick_isset(proxy->timeout.serverfin))
397 h1c->shut_timeout = proxy->timeout.serverfin;
398 } else {
399 h1c->shut_timeout = h1c->timeout = proxy->timeout.client;
400 if (tick_isset(proxy->timeout.clientfin))
401 h1c->shut_timeout = proxy->timeout.clientfin;
402 }
403 if (tick_isset(h1c->timeout)) {
404 t = task_new(tid_bit);
405 if (!t)
406 goto fail;
407
408 h1c->task = t;
409 t->process = h1_timeout_task;
410 t->context = h1c;
411 t->expire = tick_add(now_ms, h1c->timeout);
412 }
413
Christopher Faulet3b88b8d2018-10-26 17:36:03 +0200414 if (!(conn->flags & CO_FL_CONNECTED))
415 h1c->flags |= H1C_F_CS_WAIT_CONN;
416
Christopher Fauletf2824e62018-10-01 12:12:37 +0200417 /* Always Create a new H1S */
Willy Tarreau3d2ee552018-12-19 14:12:10 +0100418 if (!h1s_create(h1c, conn->ctx, sess))
Christopher Fauletf2824e62018-10-01 12:12:37 +0200419 goto fail;
Christopher Faulet51dbc942018-09-13 09:05:15 +0200420
Willy Tarreau3d2ee552018-12-19 14:12:10 +0100421 conn->ctx = h1c;
Christopher Faulet129817b2018-09-20 16:14:40 +0200422
Christopher Fauletb8093cf2019-01-03 16:27:28 +0100423
424 if (t)
425 task_queue(t);
426
Christopher Faulet51dbc942018-09-13 09:05:15 +0200427 /* Try to read, if nothing is available yet we'll just subscribe */
Olivier Houchard9b960a82019-01-04 16:51:40 +0100428 tasklet_wakeup(h1c->wait_event.task);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200429
430 /* mux->wake will be called soon to complete the operation */
431 return 0;
432
433 fail:
Christopher Fauletb8093cf2019-01-03 16:27:28 +0100434 if (t)
Olivier Houchard3f795f72019-04-17 22:51:06 +0200435 task_destroy(t);
Christopher Faulet47365272018-10-31 17:40:50 +0100436 if (h1c->wait_event.task)
Christopher Faulet51dbc942018-09-13 09:05:15 +0200437 tasklet_free(h1c->wait_event.task);
438 pool_free(pool_head_h1c, h1c);
439 fail_h1c:
440 return -1;
441}
442
Christopher Faulet73c12072019-04-08 11:23:22 +0200443/* release function. This one should be called to free all resources allocated
444 * to the mux.
Christopher Faulet51dbc942018-09-13 09:05:15 +0200445 */
Christopher Faulet73c12072019-04-08 11:23:22 +0200446static void h1_release(struct h1c *h1c)
Christopher Faulet51dbc942018-09-13 09:05:15 +0200447{
Christopher Faulet61840e72019-04-15 09:33:32 +0200448 struct connection *conn = NULL;
Christopher Faulet39a96ee2019-04-08 10:52:21 +0200449
Christopher Faulet51dbc942018-09-13 09:05:15 +0200450 if (h1c) {
Christopher Faulet61840e72019-04-15 09:33:32 +0200451 /* The connection must be aattached to this mux to be released */
452 if (h1c->conn && h1c->conn->ctx == h1c)
453 conn = h1c->conn;
454
455 if (conn && h1c->flags & H1C_F_UPG_H2C) {
Christopher Faulet0ef372a2019-04-08 10:57:20 +0200456 h1c->flags &= ~H1C_F_UPG_H2C;
457 if (conn_upgrade_mux_fe(conn, NULL, &h1c->ibuf, ist("h2"), PROTO_MODE_HTX) != -1) {
458 /* connection successfully upgraded to H2, this
459 * mux was already released */
460 return;
461 }
462 sess_log(conn->owner); /* Log if the upgrade failed */
463 }
464
Christopher Faulet61840e72019-04-15 09:33:32 +0200465
Christopher Faulet51dbc942018-09-13 09:05:15 +0200466 if (!LIST_ISEMPTY(&h1c->buf_wait.list)) {
467 HA_SPIN_LOCK(BUF_WQ_LOCK, &buffer_wq_lock);
468 LIST_DEL(&h1c->buf_wait.list);
469 LIST_INIT(&h1c->buf_wait.list);
470 HA_SPIN_UNLOCK(BUF_WQ_LOCK, &buffer_wq_lock);
471 }
472
473 h1_release_buf(h1c, &h1c->ibuf);
474 h1_release_buf(h1c, &h1c->obuf);
475
Christopher Fauletb8093cf2019-01-03 16:27:28 +0100476 if (h1c->task) {
477 h1c->task->context = NULL;
478 task_wakeup(h1c->task, TASK_WOKEN_OTHER);
479 h1c->task = NULL;
480 }
481
Christopher Faulet51dbc942018-09-13 09:05:15 +0200482 if (h1c->wait_event.task)
483 tasklet_free(h1c->wait_event.task);
484
Christopher Fauletf2824e62018-10-01 12:12:37 +0200485 h1s_destroy(h1c->h1s);
Olivier Houchard0e079372019-04-15 17:51:16 +0200486 if (conn && h1c->wait_event.events != 0)
Olivier Houcharde179d0e2019-03-21 18:27:17 +0100487 conn->xprt->unsubscribe(conn, conn->xprt_ctx, h1c->wait_event.events,
Olivier Houchard0e079372019-04-15 17:51:16 +0200488 &h1c->wait_event);
Christopher Faulet51dbc942018-09-13 09:05:15 +0200489 pool_free(pool_head_h1c, h1c);
490 }
491
Christopher Faulet39a96ee2019-04-08 10:52:21 +0200492 if (conn) {
493 conn->mux = NULL;
494 conn->ctx = NULL;
Christopher Faulet51dbc942018-09-13 09:05:15 +0200495
Christopher Faulet39a96ee2019-04-08 10:52:21 +0200496 conn_stop_tracking(conn);
497 conn_full_close(conn);
498 if (conn->destroy_cb)
499 conn->destroy_cb(conn);
500 conn_free(conn);
501 }
Christopher Faulet51dbc942018-09-13 09:05:15 +0200502}
503
504/******************************************************/
505/* functions below are for the H1 protocol processing */
506/******************************************************/
Christopher Faulet9768c262018-10-22 09:34:31 +0200507/* Parse the request version and set H1_MF_VER_11 on <h1m> if the version is
508 * greater or equal to 1.1
Christopher Fauletf2824e62018-10-01 12:12:37 +0200509 */
Christopher Faulet570d1612018-11-26 11:13:57 +0100510static void h1_parse_req_vsn(struct h1m *h1m, const struct htx_sl *sl)
Christopher Fauletf2824e62018-10-01 12:12:37 +0200511{
Christopher Faulet570d1612018-11-26 11:13:57 +0100512 const char *p = HTX_SL_REQ_VPTR(sl);
Christopher Faulet9768c262018-10-22 09:34:31 +0200513
Christopher Faulet570d1612018-11-26 11:13:57 +0100514 if ((HTX_SL_REQ_VLEN(sl) == 8) &&
Christopher Faulet9768c262018-10-22 09:34:31 +0200515 (*(p + 5) > '1' ||
516 (*(p + 5) == '1' && *(p + 7) >= '1')))
517 h1m->flags |= H1_MF_VER_11;
518}
Christopher Fauletf2824e62018-10-01 12:12:37 +0200519
Christopher Faulet9768c262018-10-22 09:34:31 +0200520/* Parse the response version and set H1_MF_VER_11 on <h1m> if the version is
521 * greater or equal to 1.1
522 */
Christopher Faulet570d1612018-11-26 11:13:57 +0100523static void h1_parse_res_vsn(struct h1m *h1m, const struct htx_sl *sl)
Christopher Faulet9768c262018-10-22 09:34:31 +0200524{
Christopher Faulet570d1612018-11-26 11:13:57 +0100525 const char *p = HTX_SL_RES_VPTR(sl);
Christopher Fauletf2824e62018-10-01 12:12:37 +0200526
Christopher Faulet570d1612018-11-26 11:13:57 +0100527 if ((HTX_SL_RES_VLEN(sl) == 8) &&
Christopher Faulet9768c262018-10-22 09:34:31 +0200528 (*(p + 5) > '1' ||
529 (*(p + 5) == '1' && *(p + 7) >= '1')))
530 h1m->flags |= H1_MF_VER_11;
531}
Christopher Fauletf2824e62018-10-01 12:12:37 +0200532
Christopher Faulet9768c262018-10-22 09:34:31 +0200533/*
534 * Check the validity of the request version. If the version is valid, it
535 * returns 1. Otherwise, it returns 0.
536 */
537static int h1_process_req_vsn(struct h1s *h1s, struct h1m *h1m, union h1_sl sl)
538{
539 struct h1c *h1c = h1s->h1c;
540
541 /* RFC7230#2.6 has enforced the format of the HTTP version string to be
542 * exactly one digit "." one digit. This check may be disabled using
543 * option accept-invalid-http-request.
544 */
545 if (!(h1c->px->options2 & PR_O2_REQBUG_OK)) {
546 if (sl.rq.v.len != 8)
547 return 0;
548
549 if (*(sl.rq.v.ptr + 4) != '/' ||
550 !isdigit((unsigned char)*(sl.rq.v.ptr + 5)) ||
551 *(sl.rq.v.ptr + 6) != '.' ||
552 !isdigit((unsigned char)*(sl.rq.v.ptr + 7)))
553 return 0;
Christopher Fauletf2824e62018-10-01 12:12:37 +0200554 }
Christopher Faulet9768c262018-10-22 09:34:31 +0200555 else if (!sl.rq.v.len) {
556 /* try to convert HTTP/0.9 requests to HTTP/1.0 */
Christopher Fauletf2824e62018-10-01 12:12:37 +0200557
Christopher Faulet9768c262018-10-22 09:34:31 +0200558 /* RFC 1945 allows only GET for HTTP/0.9 requests */
559 if (sl.rq.meth != HTTP_METH_GET)
560 return 0;
Christopher Fauletf2824e62018-10-01 12:12:37 +0200561
Christopher Faulet9768c262018-10-22 09:34:31 +0200562 /* HTTP/0.9 requests *must* have a request URI, per RFC 1945 */
563 if (!sl.rq.u.len)
564 return 0;
565
566 /* Add HTTP version */
567 sl.rq.v = ist("HTTP/1.0");
Christopher Fauletf1ba18d2018-11-26 21:37:08 +0100568 return 1;
Christopher Faulet9768c262018-10-22 09:34:31 +0200569 }
Christopher Fauletf1ba18d2018-11-26 21:37:08 +0100570
571 if ((sl.rq.v.len == 8) &&
Christopher Fauletaa75b3d2018-12-05 16:20:40 +0100572 ((*(sl.rq.v.ptr + 5) > '1') ||
573 ((*(sl.rq.v.ptr + 5) == '1') && (*(sl.rq.v.ptr + 7) >= '1'))))
Christopher Fauletf1ba18d2018-11-26 21:37:08 +0100574 h1m->flags |= H1_MF_VER_11;
Christopher Faulet9768c262018-10-22 09:34:31 +0200575 return 1;
Christopher Fauletf2824e62018-10-01 12:12:37 +0200576}
577
Christopher Faulet9768c262018-10-22 09:34:31 +0200578/*
579 * Check the validity of the response version. If the version is valid, it
580 * returns 1. Otherwise, it returns 0.
Christopher Fauletf2824e62018-10-01 12:12:37 +0200581 */
Christopher Faulet9768c262018-10-22 09:34:31 +0200582static int h1_process_res_vsn(struct h1s *h1s, struct h1m *h1m, union h1_sl sl)
Christopher Fauletf2824e62018-10-01 12:12:37 +0200583{
Christopher Faulet9768c262018-10-22 09:34:31 +0200584 struct h1c *h1c = h1s->h1c;
Christopher Fauletf2824e62018-10-01 12:12:37 +0200585
Christopher Faulet9768c262018-10-22 09:34:31 +0200586 /* RFC7230#2.6 has enforced the format of the HTTP version string to be
587 * exactly one digit "." one digit. This check may be disabled using
588 * option accept-invalid-http-request.
589 */
590 if (!(h1c->px->options2 & PR_O2_RSPBUG_OK)) {
591 if (sl.st.v.len != 8)
592 return 0;
593
594 if (*(sl.st.v.ptr + 4) != '/' ||
595 !isdigit((unsigned char)*(sl.st.v.ptr + 5)) ||
596 *(sl.st.v.ptr + 6) != '.' ||
597 !isdigit((unsigned char)*(sl.st.v.ptr + 7)))
598 return 0;
Christopher Fauletf2824e62018-10-01 12:12:37 +0200599 }
Christopher Fauletf1ba18d2018-11-26 21:37:08 +0100600
601 if ((sl.st.v.len == 8) &&
Christopher Fauletaa75b3d2018-12-05 16:20:40 +0100602 ((*(sl.st.v.ptr + 5) > '1') ||
603 ((*(sl.st.v.ptr + 5) == '1') && (*(sl.st.v.ptr + 7) >= '1'))))
Christopher Fauletf1ba18d2018-11-26 21:37:08 +0100604 h1m->flags |= H1_MF_VER_11;
605
Christopher Faulet9768c262018-10-22 09:34:31 +0200606 return 1;
607}
Christopher Fauletf2824e62018-10-01 12:12:37 +0200608
609/* Deduce the connection mode of the client connection, depending on the
610 * configuration and the H1 message flags. This function is called twice, the
611 * first time when the request is parsed and the second time when the response
612 * is parsed.
613 */
614static void h1_set_cli_conn_mode(struct h1s *h1s, struct h1m *h1m)
615{
616 struct proxy *fe = h1s->h1c->px;
Christopher Fauletf2824e62018-10-01 12:12:37 +0200617
618 if (h1m->flags & H1_MF_RESP) {
Christopher Fauletb992af02019-03-28 15:42:24 +0100619 /* Output direction: second pass */
Christopher Fauletf2824e62018-10-01 12:12:37 +0200620 if ((h1s->meth == HTTP_METH_CONNECT && h1s->status == 200) ||
Christopher Fauletb992af02019-03-28 15:42:24 +0100621 h1s->status == 101) {
622 /* Either we've established an explicit tunnel, or we're
623 * switching the protocol. In both cases, we're very unlikely to
624 * understand the next protocols. We have to switch to tunnel
625 * mode, so that we transfer the request and responses then let
626 * this protocol pass unmodified. When we later implement
627 * specific parsers for such protocols, we'll want to check the
628 * Upgrade header which contains information about that protocol
629 * for responses with status 101 (eg: see RFC2817 about TLS).
630 */
Christopher Fauletf2824e62018-10-01 12:12:37 +0200631 h1s->flags = (h1s->flags & ~H1S_F_WANT_MSK) | H1S_F_WANT_TUN;
Christopher Fauletb992af02019-03-28 15:42:24 +0100632 }
633 else if (h1s->flags & H1S_F_WANT_KAL) {
634 /* By default the client is in KAL mode. CLOSE mode mean
635 * it is imposed by the client itself. So only change
636 * KAL mode here. */
637 if (!(h1m->flags & H1_MF_XFER_LEN) || (h1m->flags & H1_MF_CONN_CLO)) {
638 /* no length known or explicit close => close */
639 h1s->flags = (h1s->flags & ~H1S_F_WANT_MSK) | H1S_F_WANT_CLO;
640 }
641 else if (!(h1m->flags & H1_MF_CONN_KAL) &&
642 (fe->options & PR_O_HTTP_MODE) == PR_O_HTTP_CLO) {
643 /* no explict keep-alive and option httpclose => close */
644 h1s->flags = (h1s->flags & ~H1S_F_WANT_MSK) | H1S_F_WANT_CLO;
645 }
646 }
Christopher Fauletf2824e62018-10-01 12:12:37 +0200647 }
648 else {
Christopher Fauletb992af02019-03-28 15:42:24 +0100649 /* Input direction: first pass */
650 if (!(h1m->flags & (H1_MF_VER_11|H1_MF_CONN_KAL)) || h1m->flags & H1_MF_CONN_CLO) {
651 /* no explicit keep-alive in HTTP/1.0 or explicit close => close*/
Christopher Fauletf2824e62018-10-01 12:12:37 +0200652 h1s->flags = (h1s->flags & ~H1S_F_WANT_MSK) | H1S_F_WANT_CLO;
Christopher Fauletb992af02019-03-28 15:42:24 +0100653 }
Christopher Fauletf2824e62018-10-01 12:12:37 +0200654 }
655
656 /* If KAL, check if the frontend is stopping. If yes, switch in CLO mode */
657 if (h1s->flags & H1S_F_WANT_KAL && fe->state == PR_STSTOPPED)
658 h1s->flags = (h1s->flags & ~H1S_F_WANT_MSK) | H1S_F_WANT_CLO;
659}
660
661/* Deduce the connection mode of the client connection, depending on the
662 * configuration and the H1 message flags. This function is called twice, the
663 * first time when the request is parsed and the second time when the response
664 * is parsed.
665 */
666static void h1_set_srv_conn_mode(struct h1s *h1s, struct h1m *h1m)
667{
Olivier Houchardf502aca2018-12-14 19:42:40 +0100668 struct session *sess = h1s->sess;
Christopher Fauletb992af02019-03-28 15:42:24 +0100669 struct proxy *be = h1s->h1c->px;
Olivier Houchardf502aca2018-12-14 19:42:40 +0100670 int fe_flags = sess ? sess->fe->options : 0;
Christopher Fauletf2824e62018-10-01 12:12:37 +0200671
Christopher Fauletf2824e62018-10-01 12:12:37 +0200672 if (h1m->flags & H1_MF_RESP) {
Christopher Fauletb992af02019-03-28 15:42:24 +0100673 /* Input direction: second pass */
674
Christopher Fauletf2824e62018-10-01 12:12:37 +0200675 if ((h1s->meth == HTTP_METH_CONNECT && h1s->status == 200) ||
Christopher Fauletb992af02019-03-28 15:42:24 +0100676 h1s->status == 101) {
677 /* Either we've established an explicit tunnel, or we're
678 * switching the protocol. In both cases, we're very unlikely to
679 * understand the next protocols. We have to switch to tunnel
680 * mode, so that we transfer the request and responses then let
681 * this protocol pass unmodified. When we later implement
682 * specific parsers for such protocols, we'll want to check the
683 * Upgrade header which contains information about that protocol
684 * for responses with status 101 (eg: see RFC2817 about TLS).
685 */
Christopher Fauletf2824e62018-10-01 12:12:37 +0200686 h1s->flags = (h1s->flags & ~H1S_F_WANT_MSK) | H1S_F_WANT_TUN;
Christopher Fauletb992af02019-03-28 15:42:24 +0100687 }
688 else if (h1s->flags & H1S_F_WANT_KAL) {
689 /* By default the server is in KAL mode. CLOSE mode mean
690 * it is imposed by haproxy itself. So only change KAL
691 * mode here. */
692 if (!(h1m->flags & H1_MF_XFER_LEN) || h1m->flags & H1_MF_CONN_CLO ||
693 !(h1m->flags & (H1_MF_VER_11|H1_MF_CONN_KAL))){
694 /* no length known or explicit close or no explicit keep-alive in HTTP/1.0 => close */
695 h1s->flags = (h1s->flags & ~H1S_F_WANT_MSK) | H1S_F_WANT_CLO;
696 }
697 }
Christopher Fauletf2824e62018-10-01 12:12:37 +0200698 }
Christopher Faulet70033782018-12-05 13:50:11 +0100699 else {
Christopher Fauletb992af02019-03-28 15:42:24 +0100700 /* Output direction: first pass */
701 if (h1m->flags & H1_MF_CONN_CLO) {
702 /* explicit close => close */
Christopher Faulet70033782018-12-05 13:50:11 +0100703 h1s->flags = (h1s->flags & ~H1S_F_WANT_MSK) | H1S_F_WANT_CLO;
Christopher Fauletb992af02019-03-28 15:42:24 +0100704 }
705 else if (!(h1m->flags & H1_MF_CONN_KAL) &&
706 ((fe_flags & PR_O_HTTP_MODE) == PR_O_HTTP_SCL ||
707 (be->options & PR_O_HTTP_MODE) == PR_O_HTTP_SCL ||
708 (fe_flags & PR_O_HTTP_MODE) == PR_O_HTTP_CLO ||
709 (be->options & PR_O_HTTP_MODE) == PR_O_HTTP_CLO)) {
710 /* no explicit keep-alive option httpclose/server-close => close */
711 h1s->flags = (h1s->flags & ~H1S_F_WANT_MSK) | H1S_F_WANT_CLO;
712 }
Christopher Faulet70033782018-12-05 13:50:11 +0100713 }
Christopher Fauletf2824e62018-10-01 12:12:37 +0200714
715 /* If KAL, check if the backend is stopping. If yes, switch in CLO mode */
716 if (h1s->flags & H1S_F_WANT_KAL && be->state == PR_STSTOPPED)
717 h1s->flags = (h1s->flags & ~H1S_F_WANT_MSK) | H1S_F_WANT_CLO;
Christopher Fauletf2824e62018-10-01 12:12:37 +0200718}
719
Christopher Fauletb992af02019-03-28 15:42:24 +0100720static void h1_update_req_conn_value(struct h1s *h1s, struct h1m *h1m, struct ist *conn_val)
Christopher Fauletf2824e62018-10-01 12:12:37 +0200721{
722 struct proxy *px = h1s->h1c->px;
Christopher Fauletf2824e62018-10-01 12:12:37 +0200723
724 /* Don't update "Connection:" header in TUNNEL mode or if "Upgrage"
725 * token is found
726 */
727 if (h1s->flags & H1S_F_WANT_TUN || h1m->flags & H1_MF_CONN_UPG)
Christopher Faulet9768c262018-10-22 09:34:31 +0200728 return;
Christopher Fauletf2824e62018-10-01 12:12:37 +0200729
730 if (h1s->flags & H1S_F_WANT_KAL || px->options2 & PR_O2_FAKE_KA) {
Christopher Fauletb992af02019-03-28 15:42:24 +0100731 if (!(h1m->flags & H1_MF_VER_11))
732 *conn_val = ist("keep-alive");
Christopher Fauletf2824e62018-10-01 12:12:37 +0200733 }
734 else { /* H1S_F_WANT_CLO && !PR_O2_FAKE_KA */
Christopher Fauletb992af02019-03-28 15:42:24 +0100735 if (h1m->flags & H1_MF_VER_11)
736 *conn_val = ist("close");
Christopher Fauletf2824e62018-10-01 12:12:37 +0200737 }
Christopher Fauletf2824e62018-10-01 12:12:37 +0200738}
739
Christopher Fauletb992af02019-03-28 15:42:24 +0100740static void h1_update_res_conn_value(struct h1s *h1s, struct h1m *h1m, struct ist *conn_val)
Christopher Fauletf2824e62018-10-01 12:12:37 +0200741{
Christopher Fauletf2824e62018-10-01 12:12:37 +0200742 /* Don't update "Connection:" header in TUNNEL mode or if "Upgrage"
743 * token is found
744 */
745 if (h1s->flags & H1S_F_WANT_TUN || h1m->flags & H1_MF_CONN_UPG)
Christopher Faulet9768c262018-10-22 09:34:31 +0200746 return;
Christopher Fauletf2824e62018-10-01 12:12:37 +0200747
748 if (h1s->flags & H1S_F_WANT_KAL) {
Christopher Fauletb992af02019-03-28 15:42:24 +0100749 if (!(h1m->flags & H1_MF_VER_11) ||
750 !((h1m->flags & h1s->req.flags) & H1_MF_VER_11))
751 *conn_val = ist("keep-alive");
Christopher Fauletf2824e62018-10-01 12:12:37 +0200752 }
753 else { /* H1S_F_WANT_CLO */
Christopher Fauletb992af02019-03-28 15:42:24 +0100754 if (h1m->flags & H1_MF_VER_11)
755 *conn_val = ist("close");
Christopher Fauletf2824e62018-10-01 12:12:37 +0200756 }
Christopher Faulet9768c262018-10-22 09:34:31 +0200757}
Christopher Fauletf2824e62018-10-01 12:12:37 +0200758
Christopher Fauletb992af02019-03-28 15:42:24 +0100759static void h1_process_input_conn_mode(struct h1s *h1s, struct h1m *h1m, struct htx *htx)
Christopher Faulet9768c262018-10-22 09:34:31 +0200760{
Christopher Fauletb992af02019-03-28 15:42:24 +0100761 if (!conn_is_back(h1s->h1c->conn))
Christopher Faulet9768c262018-10-22 09:34:31 +0200762 h1_set_cli_conn_mode(h1s, h1m);
Christopher Fauletb992af02019-03-28 15:42:24 +0100763 else
Christopher Faulet9768c262018-10-22 09:34:31 +0200764 h1_set_srv_conn_mode(h1s, h1m);
Christopher Fauletf2824e62018-10-01 12:12:37 +0200765}
766
Christopher Fauletb992af02019-03-28 15:42:24 +0100767static void h1_process_output_conn_mode(struct h1s *h1s, struct h1m *h1m, struct ist *conn_val)
768{
769 if (!conn_is_back(h1s->h1c->conn))
770 h1_set_cli_conn_mode(h1s, h1m);
771 else
772 h1_set_srv_conn_mode(h1s, h1m);
773
774 if (!(h1m->flags & H1_MF_RESP))
775 h1_update_req_conn_value(h1s, h1m, conn_val);
776 else
777 h1_update_res_conn_value(h1s, h1m, conn_val);
778}
Christopher Faulete44769b2018-11-29 23:01:45 +0100779
780/* Append the description of what is present in error snapshot <es> into <out>.
781 * The description must be small enough to always fit in a buffer. The output
782 * buffer may be the trash so the trash must not be used inside this function.
783 */
784static void h1_show_error_snapshot(struct buffer *out, const struct error_snapshot *es)
785{
786 chunk_appendf(out,
Christopher Fauletaa75b3d2018-12-05 16:20:40 +0100787 " H1 connection flags 0x%08x, H1 stream flags 0x%08x\n"
788 " H1 msg state %s(%d), H1 msg flags 0x%08x\n"
789 " H1 chunk len %lld bytes, H1 body len %lld bytes :\n",
790 es->ctx.h1.c_flags, es->ctx.h1.s_flags,
791 h1m_state_str(es->ctx.h1.state), es->ctx.h1.state,
792 es->ctx.h1.m_flags, es->ctx.h1.m_clen, es->ctx.h1.m_blen);
Christopher Faulete44769b2018-11-29 23:01:45 +0100793}
794/*
795 * Capture a bad request or response and archive it in the proxy's structure.
796 * By default it tries to report the error position as h1m->err_pos. However if
797 * this one is not set, it will then report h1m->next, which is the last known
798 * parsing point. The function is able to deal with wrapping buffers. It always
799 * displays buffers as a contiguous area starting at buf->p. The direction is
800 * determined thanks to the h1m's flags.
801 */
802static void h1_capture_bad_message(struct h1c *h1c, struct h1s *h1s,
803 struct h1m *h1m, struct buffer *buf)
804{
805 struct session *sess = h1c->conn->owner;
806 struct proxy *proxy = h1c->px;
807 struct proxy *other_end = sess->fe;
808 union error_snapshot_ctx ctx;
809
Willy Tarreau598d7fc2018-12-18 18:10:38 +0100810 if (h1s->cs->data && !(h1m->flags & H1_MF_RESP))
Christopher Faulete44769b2018-11-29 23:01:45 +0100811 other_end = si_strm(h1s->cs->data)->be;
812
813 /* http-specific part now */
814 ctx.h1.state = h1m->state;
815 ctx.h1.c_flags = h1c->flags;
816 ctx.h1.s_flags = h1s->flags;
817 ctx.h1.m_flags = h1m->flags;
818 ctx.h1.m_clen = h1m->curr_len;
819 ctx.h1.m_blen = h1m->body_len;
820
821 proxy_capture_error(proxy, !!(h1m->flags & H1_MF_RESP), other_end,
822 h1c->conn->target, sess, buf, 0, 0,
Christopher Fauletaa75b3d2018-12-05 16:20:40 +0100823 (h1m->err_pos >= 0) ? h1m->err_pos : h1m->next,
824 &ctx, h1_show_error_snapshot);
Christopher Faulete44769b2018-11-29 23:01:45 +0100825}
826
Christopher Fauletadb22202018-12-12 10:32:09 +0100827/* Emit the chunksize followed by a CRLF in front of data of the buffer
828 * <buf>. It goes backwards and starts with the byte before the buffer's
829 * head. The caller is responsible for ensuring there is enough room left before
830 * the buffer's head for the string.
831 */
832static void h1_emit_chunk_size(struct buffer *buf, size_t chksz)
833{
834 char *beg, *end;
835
836 beg = end = b_head(buf);
837 *--beg = '\n';
838 *--beg = '\r';
839 do {
840 *--beg = hextab[chksz & 0xF];
841 } while (chksz >>= 4);
842 buf->head -= (end - beg);
843 b_add(buf, end - beg);
844}
845
846/* Emit a CRLF after the data of the buffer <buf>. The caller is responsible for
847 * ensuring there is enough room left in the buffer for the string. */
848static void h1_emit_chunk_crlf(struct buffer *buf)
849{
850 *(b_peek(buf, b_data(buf))) = '\r';
851 *(b_peek(buf, b_data(buf) + 1)) = '\n';
852 b_add(buf, 2);
853}
854
Christopher Faulet129817b2018-09-20 16:14:40 +0200855/*
Christopher Fauletc62c2b92019-03-28 11:41:39 +0100856 * Switch the request to tunnel mode. This function must only be called for
857 * CONNECT requests. On the client side, the mux is mark as busy on input,
858 * waiting the response.
859 */
860static void h1_set_req_tunnel_mode(struct h1s *h1s)
861{
862 h1s->req.flags &= ~(H1_MF_XFER_LEN|H1_MF_CLEN|H1_MF_CHNK);
863 h1s->req.state = H1_MSG_TUNNEL;
864 if (!conn_is_back(h1s->h1c->conn))
865 h1s->h1c->flags |= H1C_F_IN_BUSY;
866}
867
868/*
869 * Switch the response to tunnel mode. This function must only be called on
870 * successfull replies to CONNECT requests or on protocol switching. On the
871 * server side, if the request is not finished, the mux is mark as busy on
872 * input. Otherwise the request is also switch to tunnel mode.
873 */
874static void h1_set_res_tunnel_mode(struct h1s *h1s)
875{
876 h1s->res.flags &= ~(H1_MF_XFER_LEN|H1_MF_CLEN|H1_MF_CHNK);
877 h1s->res.state = H1_MSG_TUNNEL;
878 if (conn_is_back(h1s->h1c->conn) && h1s->req.state < H1_MSG_DONE)
879 h1s->h1c->flags |= H1C_F_IN_BUSY;
880 else {
881 h1s->req.flags &= ~(H1_MF_XFER_LEN|H1_MF_CLEN|H1_MF_CHNK);
882 h1s->req.state = H1_MSG_TUNNEL;
883 if (h1s->h1c->flags & H1C_F_IN_BUSY) {
884 h1s->h1c->flags &= ~H1C_F_IN_BUSY;
885 tasklet_wakeup(h1s->h1c->wait_event.task);
886 }
887 }
888}
889
890/*
Christopher Fauletcdc90e92019-03-28 13:28:46 +0100891 * Handle 100-Continue responses or any other informational 1xx responses which
892 * is non-final. In such case, this function reset the response parser. It is
893 * the caller responsibility to call this function when appropriate.
894 */
895static void h1_handle_1xx_response(struct h1s *h1s, struct h1m *h1m)
896{
897 if ((h1m->flags & H1_MF_RESP) && h1m->state == H1_MSG_DONE &&
898 h1s->status < 200 && (h1s->status == 100 || h1s->status >= 102)) {
899 h1m_init_res(&h1s->res);
Christopher Fauletb992af02019-03-28 15:42:24 +0100900 h1m->flags |= (H1_MF_NO_PHDR|H1_MF_CLEAN_CONN_HDR);
Christopher Fauletcdc90e92019-03-28 13:28:46 +0100901 h1s->h1c->flags &= ~H1C_F_IN_BUSY;
902 }
903}
904
905/*
Christopher Faulet129817b2018-09-20 16:14:40 +0200906 * Parse HTTP/1 headers. It returns the number of bytes parsed if > 0, or 0 if
Christopher Fauletf2824e62018-10-01 12:12:37 +0200907 * it couldn't proceed. Parsing errors are reported by setting H1S_F_*_ERROR
908 * flag and filling h1s->err_pos and h1s->err_state fields. This functions is
Joseph Herlant30bc5092018-11-25 10:52:20 -0800909 * responsible to update the parser state <h1m>.
Christopher Faulet129817b2018-09-20 16:14:40 +0200910 */
Christopher Faulet9768c262018-10-22 09:34:31 +0200911static size_t h1_process_headers(struct h1s *h1s, struct h1m *h1m, struct htx *htx,
Christopher Fauletf2824e62018-10-01 12:12:37 +0200912 struct buffer *buf, size_t *ofs, size_t max)
Christopher Faulet129817b2018-09-20 16:14:40 +0200913{
914 struct http_hdr hdrs[MAX_HTTP_HDR];
Christopher Fauletf1ba18d2018-11-26 21:37:08 +0100915 union h1_sl h1sl;
916 unsigned int flags = HTX_SL_F_NONE;
Christopher Faulet129817b2018-09-20 16:14:40 +0200917 int ret = 0;
918
Christopher Fauletd44ad5b2018-11-19 21:52:12 +0100919 if (!max)
920 goto end;
921
Christopher Faulet129817b2018-09-20 16:14:40 +0200922 /* Realing input buffer if necessary */
923 if (b_head(buf) + b_data(buf) > b_wrap(buf))
924 b_slow_realign(buf, trash.area, 0);
925
Christopher Faulet0ef372a2019-04-08 10:57:20 +0200926 if (!(h1m->flags & H1_MF_RESP)) {
927 /* Try to match H2 preface before parsing the request headers. */
928 ret = b_isteq(buf, 0, b_data(buf), ist(H2_CONN_PREFACE));
929 if (ret > 0)
930 goto h2c_upgrade;
931 }
932
Christopher Fauletf2824e62018-10-01 12:12:37 +0200933 ret = h1_headers_to_hdr_list(b_peek(buf, *ofs), b_peek(buf, *ofs) + max,
Christopher Fauletf1ba18d2018-11-26 21:37:08 +0100934 hdrs, sizeof(hdrs)/sizeof(hdrs[0]), h1m, &h1sl);
Christopher Faulet129817b2018-09-20 16:14:40 +0200935 if (ret <= 0) {
936 /* Incomplete or invalid message. If the buffer is full, it's an
937 * error because headers are too large to be handled by the
938 * parser. */
Christopher Fauletf2824e62018-10-01 12:12:37 +0200939 if (ret < 0 || (!ret && b_full(buf)))
940 goto error;
Christopher Faulet129817b2018-09-20 16:14:40 +0200941 goto end;
942 }
943
944 /* messages headers fully parsed, do some checks to prepare the body
945 * parsing.
946 */
947
948 /* Be sure to keep some space to do headers rewritting */
Christopher Fauletf2824e62018-10-01 12:12:37 +0200949 if (ret > (b_size(buf) - global.tune.maxrewrite))
950 goto error;
Christopher Faulet129817b2018-09-20 16:14:40 +0200951
Christopher Faulet9768c262018-10-22 09:34:31 +0200952 /* Save the request's method or the response's status, check if the body
953 * length is known and check the VSN validity */
Christopher Faulet129817b2018-09-20 16:14:40 +0200954 if (!(h1m->flags & H1_MF_RESP)) {
Christopher Fauletf1ba18d2018-11-26 21:37:08 +0100955 h1s->meth = h1sl.rq.meth;
Christopher Faulet9768c262018-10-22 09:34:31 +0200956
Christopher Fauletc62c2b92019-03-28 11:41:39 +0100957 /* By default, request have always a known length */
Christopher Faulet129817b2018-09-20 16:14:40 +0200958 h1m->flags |= H1_MF_XFER_LEN;
Christopher Fauletc62c2b92019-03-28 11:41:39 +0100959
960 if (h1s->meth == HTTP_METH_CONNECT) {
961 /* Switch CONNECT requests to tunnel mode */
962 h1_set_req_tunnel_mode(h1s);
963 }
964 else if (!(h1m->flags & H1_MF_CHNK) && !h1m->body_len) {
965 /* Switch requests with no body to done. */
Christopher Faulet129817b2018-09-20 16:14:40 +0200966 h1m->state = H1_MSG_DONE;
Christopher Fauletc62c2b92019-03-28 11:41:39 +0100967 }
Christopher Faulet9768c262018-10-22 09:34:31 +0200968
Christopher Fauletf1ba18d2018-11-26 21:37:08 +0100969 if (!h1_process_req_vsn(h1s, h1m, h1sl)) {
970 h1m->err_pos = h1sl.rq.v.ptr - b_head(buf);
Christopher Faulet9768c262018-10-22 09:34:31 +0200971 h1m->err_state = h1m->state;
972 goto vsn_error;
973 }
Christopher Faulet129817b2018-09-20 16:14:40 +0200974 }
975 else {
Christopher Fauletf1ba18d2018-11-26 21:37:08 +0100976 h1s->status = h1sl.st.status;
Christopher Faulet129817b2018-09-20 16:14:40 +0200977
Christopher Fauletc62c2b92019-03-28 11:41:39 +0100978 if ((h1s->meth == HTTP_METH_CONNECT && h1s->status == 200) ||
979 h1s->status == 101) {
980 /* Switch successfull replies to CONNECT requests and
981 * protocol switching to tunnel mode. */
982 h1_set_res_tunnel_mode(h1s);
983 }
984 else if ((h1s->meth == HTTP_METH_HEAD) ||
985 (h1s->status >= 100 && h1s->status < 200) ||
986 (h1s->status == 204) || (h1s->status == 304)) {
987 /* Switch responses without body to done. */
Christopher Faulet129817b2018-09-20 16:14:40 +0200988 h1m->flags &= ~(H1_MF_CLEN|H1_MF_CHNK);
989 h1m->flags |= H1_MF_XFER_LEN;
990 h1m->curr_len = h1m->body_len = 0;
991 h1m->state = H1_MSG_DONE;
992 }
993 else if (h1m->flags & (H1_MF_CLEN|H1_MF_CHNK)) {
Christopher Fauletc62c2b92019-03-28 11:41:39 +0100994 /* Responses with a known body length. Switch requests
995 * with no body to done. */
Christopher Faulet129817b2018-09-20 16:14:40 +0200996 h1m->flags |= H1_MF_XFER_LEN;
997 if ((h1m->flags & H1_MF_CLEN) && !h1m->body_len)
998 h1m->state = H1_MSG_DONE;
999 }
Christopher Fauletc62c2b92019-03-28 11:41:39 +01001000 else {
1001 /* Responses with an unknown body length */
Christopher Faulet129817b2018-09-20 16:14:40 +02001002 h1m->state = H1_MSG_TUNNEL;
Christopher Fauletc62c2b92019-03-28 11:41:39 +01001003 }
Christopher Faulet9768c262018-10-22 09:34:31 +02001004
Christopher Fauletf1ba18d2018-11-26 21:37:08 +01001005 if (!h1_process_res_vsn(h1s, h1m, h1sl)) {
1006 h1m->err_pos = h1sl.st.v.ptr - b_head(buf);
Christopher Faulet9768c262018-10-22 09:34:31 +02001007 h1m->err_state = h1m->state;
1008 goto vsn_error;
1009 }
Christopher Faulet129817b2018-09-20 16:14:40 +02001010 }
1011
Christopher Fauletf1ba18d2018-11-26 21:37:08 +01001012 /* Set HTX start-line flags */
1013 if (h1m->flags & H1_MF_VER_11)
1014 flags |= HTX_SL_F_VER_11;
1015 if (h1m->flags & H1_MF_XFER_ENC)
1016 flags |= HTX_SL_F_XFER_ENC;
1017 if (h1m->flags & H1_MF_XFER_LEN) {
1018 flags |= HTX_SL_F_XFER_LEN;
1019 if (h1m->flags & H1_MF_CHNK)
1020 flags |= HTX_SL_F_CHNK;
1021 else if (h1m->flags & H1_MF_CLEN)
1022 flags |= HTX_SL_F_CLEN;
Christopher Fauletb2db4fa2018-11-27 16:51:09 +01001023 if (h1m->state == H1_MSG_DONE)
1024 flags |= HTX_SL_F_BODYLESS;
Christopher Fauletf1ba18d2018-11-26 21:37:08 +01001025 }
1026
Christopher Faulet9768c262018-10-22 09:34:31 +02001027 if (!(h1m->flags & H1_MF_RESP)) {
Christopher Fauletf1ba18d2018-11-26 21:37:08 +01001028 struct htx_sl *sl;
1029
1030 sl = htx_add_stline(htx, HTX_BLK_REQ_SL, flags, h1sl.rq.m, h1sl.rq.u, h1sl.rq.v);
1031 if (!sl || !htx_add_all_headers(htx, hdrs))
Christopher Faulet9768c262018-10-22 09:34:31 +02001032 goto error;
Christopher Fauletf1ba18d2018-11-26 21:37:08 +01001033 sl->info.req.meth = h1s->meth;
Christopher Fauletf2824e62018-10-01 12:12:37 +02001034 }
1035 else {
Christopher Fauletf1ba18d2018-11-26 21:37:08 +01001036 struct htx_sl *sl;
1037
1038 flags |= HTX_SL_F_IS_RESP;
1039 sl = htx_add_stline(htx, HTX_BLK_RES_SL, flags, h1sl.st.v, h1sl.st.c, h1sl.st.r);
1040 if (!sl || !htx_add_all_headers(htx, hdrs))
Christopher Faulet9768c262018-10-22 09:34:31 +02001041 goto error;
Christopher Fauletf1ba18d2018-11-26 21:37:08 +01001042 sl->info.res.status = h1s->status;
Christopher Fauletf2824e62018-10-01 12:12:37 +02001043 }
Christopher Fauletf1ba18d2018-11-26 21:37:08 +01001044
Christopher Fauletdbe2cb42019-03-22 14:09:41 +01001045 if (h1m->state == H1_MSG_DONE) {
Christopher Faulet9768c262018-10-22 09:34:31 +02001046 if (!htx_add_endof(htx, HTX_BLK_EOM))
1047 goto error;
Christopher Fauletdbe2cb42019-03-22 14:09:41 +01001048 h1s->cs->flags |= CS_FL_EOI;
1049 }
Christopher Faulet9768c262018-10-22 09:34:31 +02001050
Christopher Fauletb992af02019-03-28 15:42:24 +01001051 h1_process_input_conn_mode(h1s, h1m, htx);
Christopher Faulet9768c262018-10-22 09:34:31 +02001052
1053 /* If body length cannot be determined, set htx->extra to
1054 * ULLONG_MAX. This value is impossible in other cases.
1055 */
1056 htx->extra = ((h1m->flags & H1_MF_XFER_LEN) ? h1m->curr_len : ULLONG_MAX);
1057
1058 /* Recheck there is enough space to do headers rewritting */
1059 if (htx_used_space(htx) > b_size(buf) - global.tune.maxrewrite)
1060 goto error;
1061
1062 *ofs += ret;
Christopher Faulet129817b2018-09-20 16:14:40 +02001063 end:
1064 return ret;
Christopher Fauletf2824e62018-10-01 12:12:37 +02001065
1066 error:
Christopher Fauletf2824e62018-10-01 12:12:37 +02001067 h1m->err_state = h1m->state;
1068 h1m->err_pos = h1m->next;
Christopher Faulet9768c262018-10-22 09:34:31 +02001069 vsn_error:
1070 h1s->flags |= (!(h1m->flags & H1_MF_RESP) ? H1S_F_REQ_ERROR : H1S_F_RES_ERROR);
Christopher Faulete44769b2018-11-29 23:01:45 +01001071 h1_capture_bad_message(h1s->h1c, h1s, h1m, buf);
Christopher Fauletf2824e62018-10-01 12:12:37 +02001072 ret = 0;
1073 goto end;
Christopher Faulet0ef372a2019-04-08 10:57:20 +02001074
1075 h2c_upgrade:
1076 h1s->h1c->flags |= H1C_F_UPG_H2C;
1077 h1s->cs->flags |= CS_FL_REOS;
1078 htx->flags |= HTX_FL_UPGRADE;
1079 ret = 0;
1080 goto end;
Christopher Faulet129817b2018-09-20 16:14:40 +02001081}
1082
1083/*
Christopher Fauletf2824e62018-10-01 12:12:37 +02001084 * Parse HTTP/1 body. It returns the number of bytes parsed if > 0, or 0 if it
1085 * couldn't proceed. Parsing errors are reported by setting H1S_F_*_ERROR flag
Christopher Faulet129817b2018-09-20 16:14:40 +02001086 * and filling h1s->err_pos and h1s->err_state fields. This functions is
Joseph Herlant30bc5092018-11-25 10:52:20 -08001087 * responsible to update the parser state <h1m>.
Christopher Faulet129817b2018-09-20 16:14:40 +02001088 */
Christopher Faulet9768c262018-10-22 09:34:31 +02001089static size_t h1_process_data(struct h1s *h1s, struct h1m *h1m, struct htx *htx,
Christopher Fauletaa75b3d2018-12-05 16:20:40 +01001090 struct buffer *buf, size_t *ofs, size_t max,
Christopher Fauletafe57842019-01-21 11:55:02 +01001091 struct buffer *htxbuf, size_t reserve)
Christopher Faulet129817b2018-09-20 16:14:40 +02001092{
Christopher Fauletafe57842019-01-21 11:55:02 +01001093 uint32_t data_space;
Christopher Faulet129817b2018-09-20 16:14:40 +02001094 size_t total = 0;
1095 int ret = 0;
1096
Christopher Fauletafe57842019-01-21 11:55:02 +01001097 data_space = htx_free_data_space(htx);
1098 if (data_space <= reserve)
1099 goto end;
1100 data_space -= reserve;
1101
Christopher Faulet129817b2018-09-20 16:14:40 +02001102 if (h1m->flags & H1_MF_XFER_LEN) {
1103 if (h1m->flags & H1_MF_CLEN) {
1104 /* content-length: read only h2m->body_len */
1105 ret = max;
Christopher Faulet9768c262018-10-22 09:34:31 +02001106 if (ret > data_space)
1107 ret = data_space;
Christopher Faulet129817b2018-09-20 16:14:40 +02001108 if ((uint64_t)ret > h1m->curr_len)
1109 ret = h1m->curr_len;
Christopher Faulet9768c262018-10-22 09:34:31 +02001110 if (ret > b_contig_data(buf, *ofs))
1111 ret = b_contig_data(buf, *ofs);
1112 if (ret) {
Willy Tarreau78f548f2018-12-05 10:02:39 +01001113 /* very often with large files we'll face the following
1114 * situation :
1115 * - htx is empty and points to <htxbuf>
1116 * - ret == buf->data
1117 * - buf->head == sizeof(struct htx)
1118 * => we can swap the buffers and place an htx header into
1119 * the target buffer instead
1120 */
1121 if (unlikely(htx_is_empty(htx) && ret == b_data(buf) &&
1122 !*ofs && b_head_ofs(buf) == sizeof(struct htx))) {
1123 void *raw_area = buf->area;
1124 void *htx_area = htxbuf->area;
1125 struct htx_blk *blk;
1126
1127 buf->area = htx_area;
1128 htxbuf->area = raw_area;
1129 htx = (struct htx *)htxbuf->area;
1130 htx->size = htxbuf->size - sizeof(*htx);
1131 htx_reset(htx);
1132 b_set_data(htxbuf, b_size(htxbuf));
1133
1134 blk = htx_add_blk(htx, HTX_BLK_DATA, ret);
1135 blk->info += ret;
1136 /* nothing else to do, the old buffer now contains an
1137 * empty pre-initialized HTX header
1138 */
1139 }
1140 else if (!htx_add_data(htx, ist2(b_peek(buf, *ofs), ret)))
Christopher Faulet9768c262018-10-22 09:34:31 +02001141 goto end;
1142 h1m->curr_len -= ret;
1143 *ofs += ret;
1144 total += ret;
1145 }
1146
1147 if (!h1m->curr_len) {
1148 if (!htx_add_endof(htx, HTX_BLK_EOM))
1149 goto end;
Christopher Faulet129817b2018-09-20 16:14:40 +02001150 h1m->state = H1_MSG_DONE;
Christopher Fauletdbe2cb42019-03-22 14:09:41 +01001151 h1s->cs->flags |= CS_FL_EOI;
Christopher Faulet9768c262018-10-22 09:34:31 +02001152 }
Christopher Faulet129817b2018-09-20 16:14:40 +02001153 }
1154 else if (h1m->flags & H1_MF_CHNK) {
1155 new_chunk:
1156 /* te:chunked : parse chunks */
1157 if (h1m->state == H1_MSG_CHUNK_CRLF) {
Christopher Fauletf2824e62018-10-01 12:12:37 +02001158 ret = h1_skip_chunk_crlf(buf, *ofs, *ofs + max);
Christopher Faulet129817b2018-09-20 16:14:40 +02001159 if (ret <= 0)
1160 goto end;
Christopher Faulet9768c262018-10-22 09:34:31 +02001161 h1m->state = H1_MSG_CHUNK_SIZE;
1162
Christopher Faulet129817b2018-09-20 16:14:40 +02001163 max -= ret;
Christopher Fauletf2824e62018-10-01 12:12:37 +02001164 *ofs += ret;
Christopher Faulet129817b2018-09-20 16:14:40 +02001165 total += ret;
Christopher Faulet129817b2018-09-20 16:14:40 +02001166 }
1167
1168 if (h1m->state == H1_MSG_CHUNK_SIZE) {
1169 unsigned int chksz;
1170
Christopher Fauletf2824e62018-10-01 12:12:37 +02001171 ret = h1_parse_chunk_size(buf, *ofs, *ofs + max, &chksz);
Christopher Faulet129817b2018-09-20 16:14:40 +02001172 if (ret <= 0)
1173 goto end;
Christopher Faulet9768c262018-10-22 09:34:31 +02001174 if (!chksz) {
1175 if (!htx_add_endof(htx, HTX_BLK_EOD))
1176 goto end;
Willy Tarreau34d23482019-01-03 17:46:56 +01001177 h1s->flags |= H1S_F_HAVE_I_EOD;
Christopher Faulet9768c262018-10-22 09:34:31 +02001178 h1m->state = H1_MSG_TRAILERS;
1179 }
1180 else
1181 h1m->state = H1_MSG_DATA;
1182
Christopher Faulet129817b2018-09-20 16:14:40 +02001183 h1m->curr_len = chksz;
1184 h1m->body_len += chksz;
1185 max -= ret;
Christopher Fauletf2824e62018-10-01 12:12:37 +02001186 *ofs += ret;
Christopher Faulet129817b2018-09-20 16:14:40 +02001187 total += ret;
Christopher Faulet129817b2018-09-20 16:14:40 +02001188 }
1189
1190 if (h1m->state == H1_MSG_DATA) {
1191 ret = max;
Christopher Faulet9768c262018-10-22 09:34:31 +02001192 if (ret > data_space)
1193 ret = data_space;
Christopher Faulet129817b2018-09-20 16:14:40 +02001194 if ((uint64_t)ret > h1m->curr_len)
1195 ret = h1m->curr_len;
Christopher Faulet9768c262018-10-22 09:34:31 +02001196 if (ret > b_contig_data(buf, *ofs))
1197 ret = b_contig_data(buf, *ofs);
1198 if (ret) {
1199 if (!htx_add_data(htx, ist2(b_peek(buf, *ofs), ret)))
1200 goto end;
1201 h1m->curr_len -= ret;
1202 max -= ret;
1203 *ofs += ret;
1204 total += ret;
1205 }
1206 if (!h1m->curr_len) {
1207 h1m->state = H1_MSG_CHUNK_CRLF;
Christopher Fauletafe57842019-01-21 11:55:02 +01001208 data_space = htx_free_data_space(htx);
1209 if (data_space <= reserve)
1210 goto end;
1211 data_space -= reserve;
Christopher Faulet9768c262018-10-22 09:34:31 +02001212 goto new_chunk;
1213 }
1214 goto end;
Christopher Faulet129817b2018-09-20 16:14:40 +02001215 }
1216
1217 if (h1m->state == H1_MSG_TRAILERS) {
Christopher Faulet17276482018-11-22 11:44:35 +01001218 /* Trailers were alread parsed, only the EOM
1219 * need to be added */
Willy Tarreau34d23482019-01-03 17:46:56 +01001220 if (h1s->flags & H1S_F_HAVE_I_TLR)
Christopher Faulet17276482018-11-22 11:44:35 +01001221 goto skip_tlr_parsing;
1222
Christopher Fauletf2824e62018-10-01 12:12:37 +02001223 ret = h1_measure_trailers(buf, *ofs, *ofs + max);
Christopher Faulet9768c262018-10-22 09:34:31 +02001224 if (ret > data_space)
1225 ret = (htx_is_empty(htx) ? -1 : 0);
Christopher Faulet129817b2018-09-20 16:14:40 +02001226 if (ret <= 0)
1227 goto end;
Christopher Faulet9768c262018-10-22 09:34:31 +02001228
1229 /* Realing input buffer if tailers wrap. For now
1230 * this is a workaroung. Because trailers are
1231 * not split on CRLF, like headers, there is no
1232 * way to know where to split it when trailers
1233 * wrap. This is a limitation of
1234 * h1_measure_trailers.
1235 */
1236 if (b_peek(buf, *ofs) > b_peek(buf, *ofs + ret))
1237 b_slow_realign(buf, trash.area, 0);
1238
1239 if (!htx_add_trailer(htx, ist2(b_peek(buf, *ofs), ret)))
1240 goto end;
Willy Tarreau34d23482019-01-03 17:46:56 +01001241 h1s->flags |= H1S_F_HAVE_I_TLR;
Christopher Faulet129817b2018-09-20 16:14:40 +02001242 max -= ret;
Christopher Fauletf2824e62018-10-01 12:12:37 +02001243 *ofs += ret;
Christopher Faulet129817b2018-09-20 16:14:40 +02001244 total += ret;
Christopher Faulet9768c262018-10-22 09:34:31 +02001245
Christopher Faulet17276482018-11-22 11:44:35 +01001246 skip_tlr_parsing:
Christopher Faulet9768c262018-10-22 09:34:31 +02001247 if (!htx_add_endof(htx, HTX_BLK_EOM))
1248 goto end;
Christopher Faulet129817b2018-09-20 16:14:40 +02001249 h1m->state = H1_MSG_DONE;
Christopher Fauletdbe2cb42019-03-22 14:09:41 +01001250 h1s->cs->flags |= CS_FL_EOI;
Christopher Faulet129817b2018-09-20 16:14:40 +02001251 }
1252 }
1253 else {
1254 /* XFER_LEN is set but not CLEN nor CHNK, it means there
1255 * is no body. Switch the message in DONE state
1256 */
Christopher Faulet9768c262018-10-22 09:34:31 +02001257 if (!htx_add_endof(htx, HTX_BLK_EOM))
1258 goto end;
Christopher Faulet129817b2018-09-20 16:14:40 +02001259 h1m->state = H1_MSG_DONE;
Christopher Fauletdbe2cb42019-03-22 14:09:41 +01001260 h1s->cs->flags |= CS_FL_EOI;
Christopher Faulet129817b2018-09-20 16:14:40 +02001261 }
1262 }
1263 else {
1264 /* no content length, read till SHUTW */
Christopher Faulet9768c262018-10-22 09:34:31 +02001265 ret = max;
1266 if (ret > data_space)
1267 ret = data_space;
1268 if (ret > b_contig_data(buf, *ofs))
1269 ret = b_contig_data(buf, *ofs);
1270 if (ret) {
1271 if (!htx_add_data(htx, ist2(b_peek(buf, *ofs), ret)))
1272 goto end;
1273
Olivier Houchardcf42d5a2018-12-04 17:41:58 +01001274 *ofs += ret;
1275 total = ret;
Christopher Faulet9768c262018-10-22 09:34:31 +02001276 }
Christopher Faulet129817b2018-09-20 16:14:40 +02001277 }
1278
1279 end:
1280 if (ret < 0) {
Christopher Fauletf2824e62018-10-01 12:12:37 +02001281 h1s->flags |= (!(h1m->flags & H1_MF_RESP) ? H1S_F_REQ_ERROR : H1S_F_RES_ERROR);
Christopher Faulet129817b2018-09-20 16:14:40 +02001282 h1m->err_state = h1m->state;
Christopher Fauletf2824e62018-10-01 12:12:37 +02001283 h1m->err_pos = *ofs + max + ret;
Christopher Faulete44769b2018-11-29 23:01:45 +01001284 h1_capture_bad_message(h1s->h1c, h1s, h1m, buf);
Christopher Faulet129817b2018-09-20 16:14:40 +02001285 return 0;
1286 }
Christopher Faulet9768c262018-10-22 09:34:31 +02001287 /* update htx->extra, only when the body length is known */
1288 if (h1m->flags & H1_MF_XFER_LEN)
1289 htx->extra = h1m->curr_len;
Christopher Faulet129817b2018-09-20 16:14:40 +02001290 return total;
1291}
1292
1293/*
Christopher Faulet129817b2018-09-20 16:14:40 +02001294 * Process incoming data. It parses data and transfer them from h1c->ibuf into
Christopher Faulet539e0292018-11-19 10:40:09 +01001295 * <buf>. It returns the number of bytes parsed and transferred if > 0, or 0 if
1296 * it couldn't proceed.
Christopher Faulet129817b2018-09-20 16:14:40 +02001297 */
Christopher Faulet539e0292018-11-19 10:40:09 +01001298static size_t h1_process_input(struct h1c *h1c, struct buffer *buf, int flags)
Christopher Faulet51dbc942018-09-13 09:05:15 +02001299{
Christopher Faulet539e0292018-11-19 10:40:09 +01001300 struct h1s *h1s = h1c->h1s;
Christopher Faulet129817b2018-09-20 16:14:40 +02001301 struct h1m *h1m;
Christopher Faulet9768c262018-10-22 09:34:31 +02001302 struct htx *htx;
Christopher Fauletb8d2ee02019-02-25 15:29:51 +01001303 size_t data = 0;
Christopher Faulet129817b2018-09-20 16:14:40 +02001304 size_t total = 0;
1305 size_t ret = 0;
Christopher Fauletafe57842019-01-21 11:55:02 +01001306 size_t count, rsv;
Christopher Fauletf2824e62018-10-01 12:12:37 +02001307 int errflag;
Christopher Faulet51dbc942018-09-13 09:05:15 +02001308
Christopher Faulet539e0292018-11-19 10:40:09 +01001309 htx = htx_from_buf(buf);
Willy Tarreau3a6190f2018-12-16 08:29:56 +01001310
Christopher Fauletf2824e62018-10-01 12:12:37 +02001311 if (!conn_is_back(h1c->conn)) {
1312 h1m = &h1s->req;
1313 errflag = H1S_F_REQ_ERROR;
1314 }
1315 else {
1316 h1m = &h1s->res;
1317 errflag = H1S_F_RES_ERROR;
1318 }
Christopher Faulet9768c262018-10-22 09:34:31 +02001319
Christopher Faulet74027762019-02-26 14:45:05 +01001320 data = htx->data;
1321 count = b_data(&h1c->ibuf);
Christopher Faulet74027762019-02-26 14:45:05 +01001322 rsv = ((flags & CO_RFL_KEEP_RSV) ? global.tune.maxrewrite : 0);
1323
Christopher Fauletcdc90e92019-03-28 13:28:46 +01001324 if (htx_is_empty(htx))
1325 h1_handle_1xx_response(h1s, h1m);
1326
Christopher Fauletd44ad5b2018-11-19 21:52:12 +01001327 do {
Christopher Faulet129817b2018-09-20 16:14:40 +02001328 if (h1m->state <= H1_MSG_LAST_LF) {
Christopher Faulet539e0292018-11-19 10:40:09 +01001329 ret = h1_process_headers(h1s, h1m, htx, &h1c->ibuf, &total, count);
Christopher Faulet129817b2018-09-20 16:14:40 +02001330 if (!ret)
1331 break;
Christopher Faulet129817b2018-09-20 16:14:40 +02001332 }
1333 else if (h1m->state <= H1_MSG_TRAILERS) {
Christopher Fauletafe57842019-01-21 11:55:02 +01001334 ret = h1_process_data(h1s, h1m, htx, &h1c->ibuf, &total, count, buf, rsv);
Willy Tarreau78f548f2018-12-05 10:02:39 +01001335 htx = htx_from_buf(buf);
Christopher Faulet129817b2018-09-20 16:14:40 +02001336 if (!ret)
1337 break;
1338 }
Christopher Fauletcb55f482018-12-10 11:56:47 +01001339 else if (h1m->state == H1_MSG_DONE) {
Christopher Faulet2f320ee2019-04-16 20:26:53 +02001340 if (h1s->req.state < H1_MSG_DONE || h1s->res.state < H1_MSG_DONE)
1341 h1c->flags |= H1C_F_IN_BUSY;
Christopher Fauletf2824e62018-10-01 12:12:37 +02001342 break;
Christopher Fauletcb55f482018-12-10 11:56:47 +01001343 }
Christopher Fauletf2824e62018-10-01 12:12:37 +02001344 else if (h1m->state == H1_MSG_TUNNEL) {
Christopher Fauletafe57842019-01-21 11:55:02 +01001345 ret = h1_process_data(h1s, h1m, htx, &h1c->ibuf, &total, count, buf, rsv);
Willy Tarreau78f548f2018-12-05 10:02:39 +01001346 htx = htx_from_buf(buf);
Christopher Faulet9768c262018-10-22 09:34:31 +02001347 if (!ret)
1348 break;
Christopher Fauletf2824e62018-10-01 12:12:37 +02001349 }
Christopher Faulet129817b2018-09-20 16:14:40 +02001350 else {
Christopher Fauletf2824e62018-10-01 12:12:37 +02001351 h1s->flags |= errflag;
Christopher Faulet129817b2018-09-20 16:14:40 +02001352 break;
1353 }
1354
Christopher Faulet539e0292018-11-19 10:40:09 +01001355 count -= ret;
Christopher Fauletd44ad5b2018-11-19 21:52:12 +01001356 } while (!(h1s->flags & errflag) && count);
Christopher Faulet129817b2018-09-20 16:14:40 +02001357
Christopher Faulet47365272018-10-31 17:40:50 +01001358 if (h1s->flags & errflag)
1359 goto parsing_err;
Christopher Faulet129817b2018-09-20 16:14:40 +02001360
Christopher Faulet539e0292018-11-19 10:40:09 +01001361 b_del(&h1c->ibuf, total);
1362
1363 end:
Christopher Faulet27ba2dc2018-12-05 11:53:24 +01001364 htx_to_buf(htx, buf);
Christopher Fauletb8d2ee02019-02-25 15:29:51 +01001365 data = (htx->data - data);
Willy Tarreau45f2b892018-12-05 07:59:27 +01001366 if (h1c->flags & H1C_F_IN_FULL && buf_room_for_htx_data(&h1c->ibuf)) {
Christopher Faulet539e0292018-11-19 10:40:09 +01001367 h1c->flags &= ~H1C_F_IN_FULL;
1368 tasklet_wakeup(h1c->wait_event.task);
Christopher Faulet47365272018-10-31 17:40:50 +01001369 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02001370
Christopher Fauletcf56b992018-12-11 16:12:31 +01001371 h1s->cs->flags &= ~(CS_FL_RCV_MORE | CS_FL_WANT_ROOM);
1372
Christopher Fauletcdc90e92019-03-28 13:28:46 +01001373 if (!b_data(&h1c->ibuf))
Christopher Faulet539e0292018-11-19 10:40:09 +01001374 h1_release_buf(h1c, &h1c->ibuf);
Christopher Fauletcf56b992018-12-11 16:12:31 +01001375 else if (!htx_is_empty(htx))
1376 h1s->cs->flags |= CS_FL_RCV_MORE | CS_FL_WANT_ROOM;
Christopher Faulet539e0292018-11-19 10:40:09 +01001377
Christopher Fauletf6ce9d62018-12-10 15:30:06 +01001378 if ((h1s->cs->flags & CS_FL_REOS) && (!b_data(&h1c->ibuf) || htx_is_empty(htx))) {
1379 h1s->cs->flags |= CS_FL_EOS;
Christopher Faulet26922382019-03-08 15:13:41 +01001380 if (h1m->state > H1_MSG_LAST_LF && h1m->state < H1_MSG_DONE)
Christopher Fauletb8d2ee02019-02-25 15:29:51 +01001381 h1s->cs->flags |= CS_FL_ERROR;
Christopher Faulet539e0292018-11-19 10:40:09 +01001382 }
Christopher Fauletf6ce9d62018-12-10 15:30:06 +01001383
Christopher Fauletb8d2ee02019-02-25 15:29:51 +01001384 return data;
Christopher Faulet47365272018-10-31 17:40:50 +01001385
1386 parsing_err:
Christopher Faulet47365272018-10-31 17:40:50 +01001387 b_reset(&h1c->ibuf);
Christopher Faulet539e0292018-11-19 10:40:09 +01001388 htx->flags |= HTX_FL_PARSING_ERROR;
Christopher Faulet27ba2dc2018-12-05 11:53:24 +01001389 htx_to_buf(htx, buf);
Christopher Faulet539e0292018-11-19 10:40:09 +01001390 h1s->cs->flags |= CS_FL_EOS;
Christopher Faulet9768c262018-10-22 09:34:31 +02001391 return 0;
Christopher Faulet51dbc942018-09-13 09:05:15 +02001392}
1393
Christopher Faulet129817b2018-09-20 16:14:40 +02001394/*
1395 * Process outgoing data. It parses data and transfer them from the channel buffer into
1396 * h1c->obuf. It returns the number of bytes parsed and transferred if > 0, or
1397 * 0 if it couldn't proceed.
1398 */
Christopher Faulet51dbc942018-09-13 09:05:15 +02001399static size_t h1_process_output(struct h1c *h1c, struct buffer *buf, size_t count)
1400{
Christopher Faulet129817b2018-09-20 16:14:40 +02001401 struct h1s *h1s = h1c->h1s;
1402 struct h1m *h1m;
Christopher Faulet9768c262018-10-22 09:34:31 +02001403 struct htx *chn_htx;
1404 struct htx_blk *blk;
1405 struct buffer *tmp;
Christopher Faulet129817b2018-09-20 16:14:40 +02001406 size_t total = 0;
Christopher Fauletd1ebb1e2018-11-28 16:32:50 +01001407 int process_conn_mode = 1; /* If still 1 on EOH, process the connection mode */
Christopher Fauletf2824e62018-10-01 12:12:37 +02001408 int errflag;
Christopher Faulet51dbc942018-09-13 09:05:15 +02001409
Christopher Faulet47365272018-10-31 17:40:50 +01001410 if (!count)
1411 goto end;
Willy Tarreau37dd54d2018-12-15 14:48:31 +01001412
Christopher Faulet9768c262018-10-22 09:34:31 +02001413 chn_htx = htx_from_buf(buf);
Willy Tarreau37dd54d2018-12-15 14:48:31 +01001414 if (htx_is_empty(chn_htx))
1415 goto end;
Christopher Faulet9768c262018-10-22 09:34:31 +02001416
Christopher Faulet51dbc942018-09-13 09:05:15 +02001417 if (!h1_get_buf(h1c, &h1c->obuf)) {
1418 h1c->flags |= H1C_F_OUT_ALLOC;
1419 goto end;
1420 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02001421
Christopher Fauletf2824e62018-10-01 12:12:37 +02001422 if (!conn_is_back(h1c->conn)) {
1423 h1m = &h1s->res;
1424 errflag = H1S_F_RES_ERROR;
1425 }
1426 else {
1427 h1m = &h1s->req;
1428 errflag = H1S_F_REQ_ERROR;
1429 }
Christopher Faulet9768c262018-10-22 09:34:31 +02001430
Willy Tarreau37dd54d2018-12-15 14:48:31 +01001431 /* the htx is non-empty thus has at least one block */
Willy Tarreau3815b222018-12-11 19:50:43 +01001432 blk = htx_get_head_blk(chn_htx);
Christopher Faulet9768c262018-10-22 09:34:31 +02001433
1434 tmp = get_trash_chunk();
Willy Tarreauc5efa332018-12-05 11:19:27 +01001435
Willy Tarreau3815b222018-12-11 19:50:43 +01001436 /* Perform some optimizations to reduce the number of buffer copies.
1437 * First, if the mux's buffer is empty and the htx area contains
1438 * exactly one data block of the same size as the requested count,
1439 * then it's possible to simply swap the caller's buffer with the
1440 * mux's output buffer and adjust offsets and length to match the
1441 * entire DATA HTX block in the middle. In this case we perform a
1442 * true zero-copy operation from end-to-end. This is the situation
1443 * that happens all the time with large files. Second, if this is not
1444 * possible, but the mux's output buffer is empty, we still have an
1445 * opportunity to avoid the copy to the intermediary buffer, by making
1446 * the intermediary buffer's area point to the output buffer's area.
1447 * In this case we want to skip the HTX header to make sure that copies
1448 * remain aligned and that this operation remains possible all the
1449 * time. This goes for headers, data blocks and any data extracted from
1450 * the HTX blocks.
Willy Tarreauc5efa332018-12-05 11:19:27 +01001451 */
1452 if (!b_data(&h1c->obuf)) {
Olivier Houchard84cca662018-12-14 16:28:08 +01001453 h1c->obuf.head = sizeof(struct htx) + blk->addr;
Willy Tarreau3815b222018-12-11 19:50:43 +01001454
1455 if (chn_htx->used == 1 &&
Willy Tarreau37dd54d2018-12-15 14:48:31 +01001456 htx_get_blk_type(blk) == HTX_BLK_DATA &&
Willy Tarreau3815b222018-12-11 19:50:43 +01001457 htx_get_blk_value(chn_htx, blk).len == count) {
1458 void *old_area = h1c->obuf.area;
1459
1460 h1c->obuf.area = buf->area;
1461 h1c->obuf.data = count;
1462
1463 buf->area = old_area;
1464 buf->data = buf->head = 0;
Christopher Fauletadb22202018-12-12 10:32:09 +01001465
1466 /* The message is chunked. We need to emit the chunk
1467 * size. We have at least the size of the struct htx to
1468 * write the chunk envelope. It should be enough.
1469 */
1470 if (h1m->flags & H1_MF_CHNK) {
1471 h1_emit_chunk_size(&h1c->obuf, count);
1472 h1_emit_chunk_crlf(&h1c->obuf);
1473 }
1474
Willy Tarreau3815b222018-12-11 19:50:43 +01001475 total += count;
1476 goto out;
1477 }
Willy Tarreauc5efa332018-12-05 11:19:27 +01001478 tmp->area = h1c->obuf.area + h1c->obuf.head;
1479 }
1480
Christopher Faulet9768c262018-10-22 09:34:31 +02001481 tmp->size = b_room(&h1c->obuf);
1482
Christopher Fauletb2e84162018-12-06 11:39:49 +01001483 while (count && !(h1s->flags & errflag) && blk) {
Christopher Faulet570d1612018-11-26 11:13:57 +01001484 struct htx_sl *sl;
Christopher Faulet9768c262018-10-22 09:34:31 +02001485 struct ist n, v;
Christopher Fauletb2e84162018-12-06 11:39:49 +01001486 enum htx_blk_type type = htx_get_blk_type(blk);
Christopher Faulet9768c262018-10-22 09:34:31 +02001487 uint32_t sz = htx_get_blksz(blk);
Christopher Fauletb2e84162018-12-06 11:39:49 +01001488 uint32_t vlen;
Christopher Faulet9768c262018-10-22 09:34:31 +02001489
Christopher Fauletb2e84162018-12-06 11:39:49 +01001490 vlen = sz;
1491 if (vlen > count) {
1492 if (type != HTX_BLK_DATA && type != HTX_BLK_TLR)
1493 goto copy;
1494 vlen = count;
1495 }
Christopher Faulet9768c262018-10-22 09:34:31 +02001496
Christopher Fauletb2e84162018-12-06 11:39:49 +01001497 switch (type) {
Christopher Faulet9768c262018-10-22 09:34:31 +02001498 case HTX_BLK_UNUSED:
Christopher Faulet129817b2018-09-20 16:14:40 +02001499 break;
Christopher Faulet9768c262018-10-22 09:34:31 +02001500
1501 case HTX_BLK_REQ_SL:
Christopher Faulet66229af2018-11-28 16:06:57 +01001502 h1m_init_req(h1m);
Christopher Fauletb992af02019-03-28 15:42:24 +01001503 h1m->flags |= (H1_MF_NO_PHDR|H1_MF_CLEAN_CONN_HDR);
Christopher Faulet9768c262018-10-22 09:34:31 +02001504 sl = htx_get_blk_ptr(chn_htx, blk);
Christopher Faulet570d1612018-11-26 11:13:57 +01001505 h1s->meth = sl->info.req.meth;
Christopher Faulet9768c262018-10-22 09:34:31 +02001506 h1_parse_req_vsn(h1m, sl);
Christopher Fauletc59ff232018-12-03 13:58:44 +01001507 if (!htx_reqline_to_h1(sl, tmp))
Christopher Faulet9768c262018-10-22 09:34:31 +02001508 goto copy;
1509 h1m->flags |= H1_MF_XFER_LEN;
Christopher Faulet1f890dd2019-02-18 10:33:16 +01001510 if (sl->flags & HTX_SL_F_BODYLESS)
1511 h1m->flags |= H1_MF_CLEN;
Christopher Faulet9768c262018-10-22 09:34:31 +02001512 h1m->state = H1_MSG_HDR_FIRST;
Christopher Faulet129817b2018-09-20 16:14:40 +02001513 break;
Christopher Faulet129817b2018-09-20 16:14:40 +02001514
Christopher Faulet9768c262018-10-22 09:34:31 +02001515 case HTX_BLK_RES_SL:
Christopher Faulet66229af2018-11-28 16:06:57 +01001516 h1m_init_res(h1m);
Christopher Fauletb992af02019-03-28 15:42:24 +01001517 h1m->flags |= (H1_MF_NO_PHDR|H1_MF_CLEAN_CONN_HDR);
Christopher Faulet9768c262018-10-22 09:34:31 +02001518 sl = htx_get_blk_ptr(chn_htx, blk);
Christopher Faulet570d1612018-11-26 11:13:57 +01001519 h1s->status = sl->info.res.status;
Christopher Faulet9768c262018-10-22 09:34:31 +02001520 h1_parse_res_vsn(h1m, sl);
Christopher Fauletc59ff232018-12-03 13:58:44 +01001521 if (!htx_stline_to_h1(sl, tmp))
Christopher Faulet9768c262018-10-22 09:34:31 +02001522 goto copy;
Christopher Faulet03599112018-11-27 11:21:21 +01001523 if (sl->flags & HTX_SL_F_XFER_LEN)
Christopher Faulet9768c262018-10-22 09:34:31 +02001524 h1m->flags |= H1_MF_XFER_LEN;
Christopher Fauletd1ebb1e2018-11-28 16:32:50 +01001525 if (sl->info.res.status < 200 &&
1526 (sl->info.res.status == 100 || sl->info.res.status >= 102))
1527 process_conn_mode = 0;
Christopher Faulet9768c262018-10-22 09:34:31 +02001528 h1m->state = H1_MSG_HDR_FIRST;
1529 break;
1530
1531 case HTX_BLK_HDR:
Christopher Faulet9768c262018-10-22 09:34:31 +02001532 h1m->state = H1_MSG_HDR_NAME;
1533 n = htx_get_blk_name(chn_htx, blk);
1534 v = htx_get_blk_value(chn_htx, blk);
1535
1536 if (isteqi(n, ist("transfer-encoding")))
1537 h1_parse_xfer_enc_header(h1m, v);
Willy Tarreau27cd2232019-01-03 21:52:42 +01001538 else if (isteqi(n, ist("content-length"))) {
Christopher Faulet5220ef22019-03-27 15:44:56 +01001539 /* Only skip C-L header with invalid value. */
1540 if (h1_parse_cont_len_header(h1m, &v) < 0)
Willy Tarreau27cd2232019-01-03 21:52:42 +01001541 goto skip_hdr;
1542 }
Christopher Faulet9768c262018-10-22 09:34:31 +02001543 else if (isteqi(n, ist("connection"))) {
Christopher Fauletb992af02019-03-28 15:42:24 +01001544 h1_parse_connection_header(h1m, &v);
Christopher Faulet9768c262018-10-22 09:34:31 +02001545 if (!v.len)
1546 goto skip_hdr;
1547 }
1548
Christopher Fauletc59ff232018-12-03 13:58:44 +01001549 if (!htx_hdr_to_h1(n, v, tmp))
Christopher Faulet9768c262018-10-22 09:34:31 +02001550 goto copy;
1551 skip_hdr:
1552 h1m->state = H1_MSG_HDR_L2_LWS;
1553 break;
1554
1555 case HTX_BLK_PHDR:
1556 /* not implemented yet */
1557 h1m->flags |= errflag;
1558 break;
1559
1560 case HTX_BLK_EOH:
Christopher Fauletde68b132018-12-10 11:21:47 +01001561 if (h1m->state != H1_MSG_LAST_LF && process_conn_mode) {
Christopher Fauletd1ebb1e2018-11-28 16:32:50 +01001562 /* There is no "Connection:" header and
1563 * it the conn_mode must be
1564 * processed. So do it */
1565 n = ist("Connection");
1566 v = ist("");
Christopher Fauletb992af02019-03-28 15:42:24 +01001567 h1_process_output_conn_mode(h1s, h1m, &v);
Christopher Fauletd1ebb1e2018-11-28 16:32:50 +01001568 if (v.len) {
Christopher Fauletc59ff232018-12-03 13:58:44 +01001569 if (!htx_hdr_to_h1(n, v, tmp))
Christopher Fauletd1ebb1e2018-11-28 16:32:50 +01001570 goto copy;
1571 }
Christopher Fauletb992af02019-03-28 15:42:24 +01001572 process_conn_mode = 0;
Christopher Fauletd1ebb1e2018-11-28 16:32:50 +01001573 }
Willy Tarreau4710d202019-01-03 17:39:54 +01001574
Christopher Fauletc62c2b92019-03-28 11:41:39 +01001575 if ((h1s->meth != HTTP_METH_CONNECT &&
1576 (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 +01001577 (H1_MF_VER_11|H1_MF_XFER_LEN)) ||
1578 (h1s->status >= 200 && h1s->status != 204 && h1s->status != 304 &&
1579 h1s->meth != HTTP_METH_HEAD && !(h1s->meth == HTTP_METH_CONNECT && h1s->status == 200) &&
1580 (h1m->flags & (H1_MF_VER_11|H1_MF_RESP|H1_MF_CLEN|H1_MF_CHNK|H1_MF_XFER_LEN)) ==
1581 (H1_MF_VER_11|H1_MF_RESP|H1_MF_XFER_LEN))) {
Willy Tarreau4710d202019-01-03 17:39:54 +01001582 /* chunking needed but header not seen */
1583 if (!chunk_memcat(tmp, "transfer-encoding: chunked\r\n", 28))
1584 goto copy;
1585 h1m->flags |= H1_MF_CHNK;
1586 }
1587
Christopher Faulet9768c262018-10-22 09:34:31 +02001588 h1m->state = H1_MSG_LAST_LF;
1589 if (!chunk_memcat(tmp, "\r\n", 2))
1590 goto copy;
1591
Christopher Fauletc62c2b92019-03-28 11:41:39 +01001592 if (!(h1m->flags & H1_MF_RESP) && h1s->meth == HTTP_METH_CONNECT) {
1593 /* a CONNECT request is sent to the server. Switch it to tunnel mode. */
1594 h1_set_req_tunnel_mode(h1s);
1595 }
1596 else if ((h1s->meth == HTTP_METH_CONNECT && h1s->status == 200) || h1s->status == 101) {
1597 /* a successfull reply to a CONNECT or a protocol switching is sent
1598 * to the client . Switch the response to tunnel mode. */
1599 h1_set_res_tunnel_mode(h1s);
1600 }
1601 else
1602 h1m->state = H1_MSG_DATA;
Christopher Faulet9768c262018-10-22 09:34:31 +02001603 break;
1604
1605 case HTX_BLK_DATA:
1606 v = htx_get_blk_value(chn_htx, blk);
Christopher Fauletb2e84162018-12-06 11:39:49 +01001607 v.len = vlen;
Christopher Fauletc59ff232018-12-03 13:58:44 +01001608 if (!htx_data_to_h1(v, tmp, !!(h1m->flags & H1_MF_CHNK)))
Christopher Faulet9768c262018-10-22 09:34:31 +02001609 goto copy;
1610 break;
1611
1612 case HTX_BLK_EOD:
1613 if (!chunk_memcat(tmp, "0\r\n", 3))
1614 goto copy;
Willy Tarreau34d23482019-01-03 17:46:56 +01001615 h1s->flags |= H1S_F_HAVE_O_EOD;
Christopher Faulet9768c262018-10-22 09:34:31 +02001616 h1m->state = H1_MSG_TRAILERS;
1617 break;
1618
1619 case HTX_BLK_TLR:
Willy Tarreau34d23482019-01-03 17:46:56 +01001620 if (!(h1s->flags & H1S_F_HAVE_O_EOD)) {
Christopher Faulet32188212018-11-20 18:21:43 +01001621 if (!chunk_memcat(tmp, "0\r\n", 3))
1622 goto copy;
Willy Tarreau34d23482019-01-03 17:46:56 +01001623 h1s->flags |= H1S_F_HAVE_O_EOD;
Christopher Faulet32188212018-11-20 18:21:43 +01001624 }
Christopher Faulet9768c262018-10-22 09:34:31 +02001625 v = htx_get_blk_value(chn_htx, blk);
Christopher Fauletb2e84162018-12-06 11:39:49 +01001626 v.len = vlen;
Christopher Fauletc59ff232018-12-03 13:58:44 +01001627 if (!htx_trailer_to_h1(v, tmp))
Christopher Faulet9768c262018-10-22 09:34:31 +02001628 goto copy;
Willy Tarreau34d23482019-01-03 17:46:56 +01001629 h1s->flags |= H1S_F_HAVE_O_TLR;
Christopher Faulet9768c262018-10-22 09:34:31 +02001630 break;
1631
1632 case HTX_BLK_EOM:
Christopher Faulet32188212018-11-20 18:21:43 +01001633 if ((h1m->flags & H1_MF_CHNK)) {
Willy Tarreau34d23482019-01-03 17:46:56 +01001634 if (!(h1s->flags & H1S_F_HAVE_O_EOD)) {
Christopher Faulet32188212018-11-20 18:21:43 +01001635 if (!chunk_memcat(tmp, "0\r\n", 3))
1636 goto copy;
Willy Tarreau34d23482019-01-03 17:46:56 +01001637 h1s->flags |= H1S_F_HAVE_O_EOD;
Christopher Faulet32188212018-11-20 18:21:43 +01001638 }
Willy Tarreau34d23482019-01-03 17:46:56 +01001639 if (!(h1s->flags & H1S_F_HAVE_O_TLR)) {
Christopher Faulet32188212018-11-20 18:21:43 +01001640 if (!chunk_memcat(tmp, "\r\n", 2))
1641 goto copy;
Willy Tarreau34d23482019-01-03 17:46:56 +01001642 h1s->flags |= H1S_F_HAVE_O_TLR;
Christopher Faulet32188212018-11-20 18:21:43 +01001643 }
1644 }
Christopher Faulet9768c262018-10-22 09:34:31 +02001645 h1m->state = H1_MSG_DONE;
1646 break;
1647
1648 case HTX_BLK_OOB:
1649 v = htx_get_blk_value(chn_htx, blk);
1650 if (!chunk_memcat(tmp, v.ptr, v.len))
1651 goto copy;
1652 break;
1653
1654 default:
1655 h1m->flags |= errflag;
1656 break;
1657 }
Christopher Fauletb2e84162018-12-06 11:39:49 +01001658 total += vlen;
1659 count -= vlen;
1660 if (sz == vlen)
1661 blk = htx_remove_blk(chn_htx, blk);
1662 else {
1663 htx_cut_data_blk(chn_htx, blk, vlen);
1664 break;
1665 }
Christopher Faulet129817b2018-09-20 16:14:40 +02001666 }
1667
Christopher Fauletcdc90e92019-03-28 13:28:46 +01001668 if (htx_is_empty(chn_htx))
1669 h1_handle_1xx_response(h1s, h1m);
1670
Christopher Faulet9768c262018-10-22 09:34:31 +02001671 copy:
Willy Tarreauc5efa332018-12-05 11:19:27 +01001672 /* when the output buffer is empty, tmp shares the same area so that we
1673 * only have to update pointers and lengths.
1674 */
Willy Tarreaub57af612019-01-23 20:43:53 +01001675 if (tmp->area == h1c->obuf.area + h1c->obuf.head)
Willy Tarreauc5efa332018-12-05 11:19:27 +01001676 h1c->obuf.data = tmp->data;
1677 else
1678 b_putblk(&h1c->obuf, tmp->area, tmp->data);
Christopher Faulet51dbc942018-09-13 09:05:15 +02001679
Willy Tarreau3815b222018-12-11 19:50:43 +01001680 htx_to_buf(chn_htx, buf);
1681 out:
Willy Tarreau45f2b892018-12-05 07:59:27 +01001682 if (!buf_room_for_htx_data(&h1c->obuf))
Christopher Faulet51dbc942018-09-13 09:05:15 +02001683 h1c->flags |= H1C_F_OUT_FULL;
Christopher Faulet9768c262018-10-22 09:34:31 +02001684 end:
1685 return total;
Christopher Faulet51dbc942018-09-13 09:05:15 +02001686}
1687
Christopher Faulet51dbc942018-09-13 09:05:15 +02001688/*********************************************************/
1689/* functions below are I/O callbacks from the connection */
1690/*********************************************************/
Christopher Faulete17fa2f2018-12-11 16:25:36 +01001691static void h1_wake_stream_for_recv(struct h1s *h1s)
1692{
1693 if (h1s && h1s->recv_wait) {
Willy Tarreau4f6516d2018-12-19 13:59:17 +01001694 h1s->recv_wait->events &= ~SUB_RETRY_RECV;
Christopher Faulete17fa2f2018-12-11 16:25:36 +01001695 tasklet_wakeup(h1s->recv_wait->task);
1696 h1s->recv_wait = NULL;
1697 }
1698}
1699static void h1_wake_stream_for_send(struct h1s *h1s)
1700{
1701 if (h1s && h1s->send_wait) {
Willy Tarreau4f6516d2018-12-19 13:59:17 +01001702 h1s->send_wait->events &= ~SUB_RETRY_SEND;
Christopher Faulete17fa2f2018-12-11 16:25:36 +01001703 tasklet_wakeup(h1s->send_wait->task);
1704 h1s->send_wait = NULL;
1705 }
1706}
1707
Christopher Faulet51dbc942018-09-13 09:05:15 +02001708/*
1709 * Attempt to read data, and subscribe if none available
1710 */
1711static int h1_recv(struct h1c *h1c)
1712{
1713 struct connection *conn = h1c->conn;
Christopher Fauletfeb11742018-11-29 15:12:34 +01001714 struct h1s *h1s = h1c->h1s;
Olivier Houchard75159a92018-12-03 18:46:09 +01001715 size_t ret = 0, max;
Christopher Faulet51dbc942018-09-13 09:05:15 +02001716 int rcvd = 0;
1717
Willy Tarreau4f6516d2018-12-19 13:59:17 +01001718 if (h1c->wait_event.events & SUB_RETRY_RECV)
Christopher Fauletc386a882018-12-04 16:06:28 +01001719 return (b_data(&h1c->ibuf));
Christopher Faulet51dbc942018-09-13 09:05:15 +02001720
Olivier Houchard75159a92018-12-03 18:46:09 +01001721 if (!h1_recv_allowed(h1c)) {
1722 rcvd = 1;
Christopher Faulet9768c262018-10-22 09:34:31 +02001723 goto end;
Olivier Houchard75159a92018-12-03 18:46:09 +01001724 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02001725
Christopher Fauletf7d5ff32019-04-16 13:55:08 +02001726 if (!h1_get_buf(h1c, &h1c->ibuf)) {
1727 h1c->flags |= H1C_F_IN_ALLOC;
Christopher Faulet9768c262018-10-22 09:34:31 +02001728 goto end;
1729 }
Christopher Faulet1be55f92018-10-02 15:59:23 +02001730
Christopher Fauletf7d5ff32019-04-16 13:55:08 +02001731 if (h1s && (h1s->flags & (H1S_F_BUF_FLUSH|H1S_F_SPLICED_DATA))) {
1732 if (!b_data(&h1c->ibuf))
1733 h1_wake_stream_for_recv(h1s);
1734 rcvd = 1;
Christopher Faulet9768c262018-10-22 09:34:31 +02001735 goto end;
Christopher Faulet51dbc942018-09-13 09:05:15 +02001736 }
1737
Olivier Houchard29a22bc2018-12-04 18:16:45 +01001738 /*
1739 * If we only have a small amount of data, realign it,
1740 * it's probably cheaper than doing 2 recv() calls.
1741 */
1742 if (b_data(&h1c->ibuf) > 0 && b_data(&h1c->ibuf) < 128)
1743 b_slow_realign(&h1c->ibuf, trash.area, 0);
1744
Willy Tarreau45f2b892018-12-05 07:59:27 +01001745 max = buf_room_for_htx_data(&h1c->ibuf);
Christopher Faulet51dbc942018-09-13 09:05:15 +02001746 if (max) {
1747 h1c->flags &= ~H1C_F_IN_FULL;
Willy Tarreau78f548f2018-12-05 10:02:39 +01001748
Willy Tarreaue0f24ee2018-12-14 10:51:23 +01001749 b_realign_if_empty(&h1c->ibuf);
Willy Tarreau78f548f2018-12-05 10:02:39 +01001750 if (!b_data(&h1c->ibuf)) {
1751 /* try to pre-align the buffer like the rxbufs will be
1752 * to optimize memory copies.
1753 */
Willy Tarreau78f548f2018-12-05 10:02:39 +01001754 h1c->ibuf.head = sizeof(struct htx);
1755 }
Olivier Houcharde179d0e2019-03-21 18:27:17 +01001756 ret = conn->xprt->rcv_buf(conn, conn->xprt_ctx, &h1c->ibuf, max, 0);
Christopher Faulet51dbc942018-09-13 09:05:15 +02001757 }
Christopher Faulet47365272018-10-31 17:40:50 +01001758 if (ret > 0) {
Christopher Faulet51dbc942018-09-13 09:05:15 +02001759 rcvd = 1;
Christopher Fauletfeb11742018-11-29 15:12:34 +01001760 if (h1s && h1s->cs) {
Christopher Faulet37e36072018-12-04 15:54:12 +01001761 h1s->cs->flags |= (CS_FL_READ_PARTIAL|CS_FL_RCV_MORE);
Christopher Fauletfeb11742018-11-29 15:12:34 +01001762 if (h1s->csinfo.t_idle == -1)
1763 h1s->csinfo.t_idle = tv_ms_elapsed(&h1s->csinfo.tv_create, &now) - h1s->csinfo.t_handshake;
1764 }
Christopher Faulet47365272018-10-31 17:40:50 +01001765 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02001766
Christopher Fauletcf56b992018-12-11 16:12:31 +01001767 if (!h1_recv_allowed(h1c) || !buf_room_for_htx_data(&h1c->ibuf)) {
Christopher Faulet81d48432018-11-19 21:22:43 +01001768 rcvd = 1;
Christopher Fauletcf56b992018-12-11 16:12:31 +01001769 goto end;
1770 }
1771
Olivier Houcharde179d0e2019-03-21 18:27:17 +01001772 conn->xprt->subscribe(conn, conn->xprt_ctx, SUB_RETRY_RECV, &h1c->wait_event);
Christopher Faulet51dbc942018-09-13 09:05:15 +02001773
Christopher Faulet9768c262018-10-22 09:34:31 +02001774 end:
Christopher Faulete17fa2f2018-12-11 16:25:36 +01001775 if (ret > 0 || (conn->flags & CO_FL_ERROR) || conn_xprt_read0_pending(conn))
1776 h1_wake_stream_for_recv(h1s);
Olivier Houchard75159a92018-12-03 18:46:09 +01001777
Christopher Faulete6b39942018-12-07 09:42:49 +01001778 if (conn_xprt_read0_pending(conn) && h1s && h1s->cs)
Christopher Faulet87a8f352019-03-22 14:51:36 +01001779 h1s->cs->flags |= CS_FL_REOS;
Christopher Faulet51dbc942018-09-13 09:05:15 +02001780 if (!b_data(&h1c->ibuf))
1781 h1_release_buf(h1c, &h1c->ibuf);
Willy Tarreau45f2b892018-12-05 07:59:27 +01001782 else if (!buf_room_for_htx_data(&h1c->ibuf))
Christopher Faulet51dbc942018-09-13 09:05:15 +02001783 h1c->flags |= H1C_F_IN_FULL;
1784 return rcvd;
1785}
1786
1787
1788/*
1789 * Try to send data if possible
1790 */
1791static int h1_send(struct h1c *h1c)
1792{
1793 struct connection *conn = h1c->conn;
1794 unsigned int flags = 0;
1795 size_t ret;
1796 int sent = 0;
1797
1798 if (conn->flags & CO_FL_ERROR)
1799 return 0;
1800
Christopher Faulet3b88b8d2018-10-26 17:36:03 +02001801 if (h1c->flags & H1C_F_CS_WAIT_CONN) {
Willy Tarreau4f6516d2018-12-19 13:59:17 +01001802 if (!(h1c->wait_event.events & SUB_RETRY_SEND))
Olivier Houcharde179d0e2019-03-21 18:27:17 +01001803 conn->xprt->subscribe(conn, conn->xprt_ctx, SUB_RETRY_SEND, &h1c->wait_event);
Christopher Faulet3b88b8d2018-10-26 17:36:03 +02001804 return 0;
1805 }
1806
Christopher Faulet51dbc942018-09-13 09:05:15 +02001807 if (!b_data(&h1c->obuf))
1808 goto end;
1809
1810 if (h1c->flags & H1C_F_OUT_FULL)
1811 flags |= CO_SFL_MSG_MORE;
1812
Olivier Houcharde179d0e2019-03-21 18:27:17 +01001813 ret = conn->xprt->snd_buf(conn, conn->xprt_ctx, &h1c->obuf, b_data(&h1c->obuf), flags);
Christopher Faulet51dbc942018-09-13 09:05:15 +02001814 if (ret > 0) {
1815 h1c->flags &= ~H1C_F_OUT_FULL;
1816 b_del(&h1c->obuf, ret);
1817 sent = 1;
1818 }
1819
Christopher Faulet145aa472018-12-06 10:56:20 +01001820 if (conn->flags & (CO_FL_ERROR|CO_FL_SOCK_WR_SH)) {
1821 /* error or output closed, nothing to send, clear the buffer to release it */
1822 b_reset(&h1c->obuf);
1823 }
1824
Christopher Faulet51dbc942018-09-13 09:05:15 +02001825 end:
Christopher Faulete17fa2f2018-12-11 16:25:36 +01001826 if (!(h1c->flags & H1C_F_OUT_FULL))
1827 h1_wake_stream_for_send(h1c->h1s);
Olivier Houchard75159a92018-12-03 18:46:09 +01001828
Christopher Faulet51dbc942018-09-13 09:05:15 +02001829 /* We're done, no more to send */
1830 if (!b_data(&h1c->obuf)) {
1831 h1_release_buf(h1c, &h1c->obuf);
1832 if (h1c->flags & H1C_F_CS_SHUTW_NOW)
Christopher Faulet666a0c42019-01-08 11:12:04 +01001833 h1_shutw_conn(conn, CS_SHW_NORMAL);
Christopher Faulet51dbc942018-09-13 09:05:15 +02001834 }
Willy Tarreau4f6516d2018-12-19 13:59:17 +01001835 else if (!(h1c->wait_event.events & SUB_RETRY_SEND))
Olivier Houcharde179d0e2019-03-21 18:27:17 +01001836 conn->xprt->subscribe(conn, conn->xprt_ctx, SUB_RETRY_SEND, &h1c->wait_event);
Christopher Faulet51dbc942018-09-13 09:05:15 +02001837
1838 return sent;
1839}
1840
Christopher Faulet51dbc942018-09-13 09:05:15 +02001841
1842/* callback called on any event by the connection handler.
1843 * It applies changes and returns zero, or < 0 if it wants immediate
1844 * destruction of the connection.
1845 */
1846static int h1_process(struct h1c * h1c)
1847{
1848 struct connection *conn = h1c->conn;
Christopher Fauletfeb11742018-11-29 15:12:34 +01001849 struct h1s *h1s = h1c->h1s;
Christopher Faulet51dbc942018-09-13 09:05:15 +02001850
Willy Tarreau3d2ee552018-12-19 14:12:10 +01001851 if (!conn->ctx)
Christopher Faulet51dbc942018-09-13 09:05:15 +02001852 return -1;
1853
Christopher Faulet3b88b8d2018-10-26 17:36:03 +02001854 if (h1c->flags & H1C_F_CS_WAIT_CONN) {
Christopher Faulet539e0292018-11-19 10:40:09 +01001855 if (!(conn->flags & (CO_FL_CONNECTED|CO_FL_ERROR)))
1856 goto end;
1857 h1c->flags &= ~H1C_F_CS_WAIT_CONN;
Christopher Fauleta0883e62018-12-11 16:26:50 +01001858 h1_wake_stream_for_send(h1s);
Christopher Faulet3b88b8d2018-10-26 17:36:03 +02001859 }
1860
Christopher Fauletfeb11742018-11-29 15:12:34 +01001861 if (!h1s) {
Christopher Faulet539e0292018-11-19 10:40:09 +01001862 if (h1c->flags & H1C_F_CS_ERROR ||
Olivier Houchard32d75ed2019-01-14 17:27:23 +01001863 conn->flags & (CO_FL_ERROR | CO_FL_SOCK_WR_SH) ||
Christopher Faulet539e0292018-11-19 10:40:09 +01001864 conn_xprt_read0_pending(conn))
1865 goto release;
Christopher Faulet666a0c42019-01-08 11:12:04 +01001866 if (!conn_is_back(conn) && !(h1c->flags & (H1C_F_CS_SHUTW_NOW|H1C_F_CS_SHUTDOWN))) {
Olivier Houchardf502aca2018-12-14 19:42:40 +01001867 if (!h1s_create(h1c, NULL, NULL))
Christopher Faulet539e0292018-11-19 10:40:09 +01001868 goto release;
Christopher Faulet51dbc942018-09-13 09:05:15 +02001869 }
Christopher Faulet1a7ad7a2018-12-04 16:10:44 +01001870 else
Olivier Houcharde7284782018-12-06 18:54:54 +01001871 goto end;
Christopher Fauletfeb11742018-11-29 15:12:34 +01001872 h1s = h1c->h1s;
Christopher Faulet51dbc942018-09-13 09:05:15 +02001873 }
1874
Christopher Fauletfeb11742018-11-29 15:12:34 +01001875 if (b_data(&h1c->ibuf) && h1s->csinfo.t_idle == -1)
1876 h1s->csinfo.t_idle = tv_ms_elapsed(&h1s->csinfo.tv_create, &now) - h1s->csinfo.t_handshake;
1877
Olivier Houchard75159a92018-12-03 18:46:09 +01001878 if (!b_data(&h1c->ibuf) && h1s && h1s->cs && h1s->cs->data_cb->wake &&
1879 (conn_xprt_read0_pending(conn) || h1c->flags & H1C_F_CS_ERROR ||
Olivier Houchard32d75ed2019-01-14 17:27:23 +01001880 conn->flags & (CO_FL_ERROR | CO_FL_SOCK_WR_SH))) {
Olivier Houchard75159a92018-12-03 18:46:09 +01001881 int flags = 0;
1882
1883 if (h1c->flags & H1C_F_CS_ERROR || conn->flags & CO_FL_ERROR)
1884 flags |= CS_FL_ERROR;
1885 if (conn_xprt_read0_pending(conn))
Christopher Faulet87a8f352019-03-22 14:51:36 +01001886 flags |= CS_FL_REOS;
Olivier Houchard75159a92018-12-03 18:46:09 +01001887 h1s->cs->flags |= flags;
1888 h1s->cs->data_cb->wake(h1s->cs);
1889 }
Christopher Faulet47365272018-10-31 17:40:50 +01001890 end:
Christopher Fauletb8093cf2019-01-03 16:27:28 +01001891 if (h1c->task) {
1892 h1c->task->expire = TICK_ETERNITY;
1893 if (b_data(&h1c->obuf)) {
Christopher Faulet666a0c42019-01-08 11:12:04 +01001894 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 +01001895 ? h1c->shut_timeout
1896 : h1c->timeout));
1897 task_queue(h1c->task);
1898 }
1899 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02001900 return 0;
Christopher Faulet539e0292018-11-19 10:40:09 +01001901
1902 release:
Christopher Faulet73c12072019-04-08 11:23:22 +02001903 h1_release(h1c);
Christopher Faulet539e0292018-11-19 10:40:09 +01001904 return -1;
Christopher Faulet51dbc942018-09-13 09:05:15 +02001905}
1906
1907static struct task *h1_io_cb(struct task *t, void *ctx, unsigned short status)
1908{
1909 struct h1c *h1c = ctx;
1910 int ret = 0;
1911
Willy Tarreau4f6516d2018-12-19 13:59:17 +01001912 if (!(h1c->wait_event.events & SUB_RETRY_SEND))
Christopher Faulet51dbc942018-09-13 09:05:15 +02001913 ret = h1_send(h1c);
Willy Tarreau4f6516d2018-12-19 13:59:17 +01001914 if (!(h1c->wait_event.events & SUB_RETRY_RECV))
Christopher Faulet51dbc942018-09-13 09:05:15 +02001915 ret |= h1_recv(h1c);
Christopher Faulet81d48432018-11-19 21:22:43 +01001916 if (ret || !h1c->h1s)
Christopher Faulet51dbc942018-09-13 09:05:15 +02001917 h1_process(h1c);
1918 return NULL;
1919}
1920
Olivier Houchard9a86fcb2018-12-11 16:47:14 +01001921static void h1_reset(struct connection *conn)
1922{
Willy Tarreau3d2ee552018-12-19 14:12:10 +01001923 struct h1c *h1c = conn->ctx;
Olivier Houchard9a86fcb2018-12-11 16:47:14 +01001924
1925 /* Reset the flags, and let the mux know we're waiting for a connection */
1926 h1c->flags = H1C_F_CS_WAIT_CONN;
1927}
Christopher Faulet51dbc942018-09-13 09:05:15 +02001928
1929static int h1_wake(struct connection *conn)
1930{
Willy Tarreau3d2ee552018-12-19 14:12:10 +01001931 struct h1c *h1c = conn->ctx;
Olivier Houchard75159a92018-12-03 18:46:09 +01001932 int ret;
Christopher Faulet51dbc942018-09-13 09:05:15 +02001933
Christopher Faulet539e0292018-11-19 10:40:09 +01001934 h1_send(h1c);
Olivier Houchard75159a92018-12-03 18:46:09 +01001935 ret = h1_process(h1c);
1936 if (ret == 0) {
1937 struct h1s *h1s = h1c->h1s;
1938
1939 if (h1s && h1s->cs && h1s->cs->data_cb->wake)
1940 ret = h1s->cs->data_cb->wake(h1s->cs);
1941 }
1942 return ret;
Christopher Faulet51dbc942018-09-13 09:05:15 +02001943}
1944
Christopher Fauletb8093cf2019-01-03 16:27:28 +01001945/* Connection timeout management. The principle is that if there's no receipt
1946 * nor sending for a certain amount of time, the connection is closed.
1947 */
1948static struct task *h1_timeout_task(struct task *t, void *context, unsigned short state)
1949{
1950 struct h1c *h1c = context;
1951 int expired = tick_is_expired(t->expire, now_ms);
1952
1953 if (!expired && h1c)
1954 return t;
1955
Olivier Houchard3f795f72019-04-17 22:51:06 +02001956 task_destroy(t);
Christopher Fauletb8093cf2019-01-03 16:27:28 +01001957
1958 if (!h1c) {
1959 /* resources were already deleted */
1960 return NULL;
1961 }
1962
1963 h1c->task = NULL;
1964 /* If a stream is still attached to the mux, just set an error and wait
1965 * for the stream's timeout. Otherwise, release the mux. This is only ok
1966 * because same timeouts are used.
1967 */
1968 if (h1c->h1s && h1c->h1s->cs)
1969 h1c->flags |= H1C_F_CS_ERROR;
1970 else
Christopher Faulet73c12072019-04-08 11:23:22 +02001971 h1_release(h1c);
Christopher Fauletb8093cf2019-01-03 16:27:28 +01001972 return NULL;
1973}
1974
Christopher Faulet51dbc942018-09-13 09:05:15 +02001975/*******************************************/
1976/* functions below are used by the streams */
1977/*******************************************/
Christopher Faulet73c12072019-04-08 11:23:22 +02001978
Christopher Faulet51dbc942018-09-13 09:05:15 +02001979/*
1980 * Attach a new stream to a connection
1981 * (Used for outgoing connections)
1982 */
Olivier Houchardf502aca2018-12-14 19:42:40 +01001983static struct conn_stream *h1_attach(struct connection *conn, struct session *sess)
Christopher Faulet51dbc942018-09-13 09:05:15 +02001984{
Willy Tarreau3d2ee552018-12-19 14:12:10 +01001985 struct h1c *h1c = conn->ctx;
Christopher Faulet51dbc942018-09-13 09:05:15 +02001986 struct conn_stream *cs = NULL;
1987 struct h1s *h1s;
1988
1989 if (h1c->flags & H1C_F_CS_ERROR)
1990 goto end;
1991
1992 cs = cs_new(h1c->conn);
1993 if (!cs)
1994 goto end;
1995
Olivier Houchardf502aca2018-12-14 19:42:40 +01001996 h1s = h1s_create(h1c, cs, sess);
Christopher Faulet51dbc942018-09-13 09:05:15 +02001997 if (h1s == NULL)
1998 goto end;
1999
2000 return cs;
2001 end:
2002 cs_free(cs);
2003 return NULL;
2004}
2005
2006/* Retrieves a valid conn_stream from this connection, or returns NULL. For
2007 * this mux, it's easy as we can only store a single conn_stream.
2008 */
2009static const struct conn_stream *h1_get_first_cs(const struct connection *conn)
2010{
Willy Tarreau3d2ee552018-12-19 14:12:10 +01002011 struct h1c *h1c = conn->ctx;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002012 struct h1s *h1s = h1c->h1s;
2013
2014 if (h1s)
2015 return h1s->cs;
2016
2017 return NULL;
2018}
2019
Christopher Faulet73c12072019-04-08 11:23:22 +02002020static void h1_destroy(void *ctx)
Christopher Faulet51dbc942018-09-13 09:05:15 +02002021{
Christopher Faulet73c12072019-04-08 11:23:22 +02002022 struct h1c *h1c = ctx;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002023
Christopher Faulet39a96ee2019-04-08 10:52:21 +02002024 if (!h1c->h1s || !h1c->conn || h1c->conn->ctx != h1c)
Christopher Faulet73c12072019-04-08 11:23:22 +02002025 h1_release(h1c);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002026}
2027
2028/*
2029 * Detach the stream from the connection and possibly release the connection.
2030 */
2031static void h1_detach(struct conn_stream *cs)
2032{
2033 struct h1s *h1s = cs->ctx;
2034 struct h1c *h1c;
Olivier Houchardf502aca2018-12-14 19:42:40 +01002035 struct session *sess;
Olivier Houchard8a786902018-12-15 16:05:40 +01002036 int has_keepalive;
2037 int is_not_first;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002038
2039 cs->ctx = NULL;
2040 if (!h1s)
2041 return;
2042
Olivier Houchardf502aca2018-12-14 19:42:40 +01002043 sess = h1s->sess;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002044 h1c = h1s->h1c;
2045 h1s->cs = NULL;
2046
Olivier Houchard8a786902018-12-15 16:05:40 +01002047 has_keepalive = h1s->flags & H1S_F_WANT_KAL;
2048 is_not_first = h1s->flags & H1S_F_NOT_FIRST;
2049 h1s_destroy(h1s);
2050
2051 if (conn_is_back(h1c->conn) && has_keepalive &&
Olivier Houchard44d59142018-12-13 18:46:22 +01002052 !(h1c->conn->flags & (CO_FL_ERROR | CO_FL_SOCK_RD_SH | CO_FL_SOCK_WR_SH))) {
Christopher Faulet9400a392018-11-23 23:10:39 +01002053 /* Never ever allow to reuse a connection from a non-reuse backend */
Olivier Houchard44d59142018-12-13 18:46:22 +01002054 if ((h1c->px->options & PR_O_REUSE_MASK) == PR_O_REUSE_NEVR)
Christopher Faulet9400a392018-11-23 23:10:39 +01002055 h1c->conn->flags |= CO_FL_PRIVATE;
2056
Olivier Houchard44d59142018-12-13 18:46:22 +01002057 if (!(h1c->conn->owner)) {
Olivier Houchardf502aca2018-12-14 19:42:40 +01002058 h1c->conn->owner = sess;
Olivier Houchard351411f2018-12-27 17:20:54 +01002059 if (!session_add_conn(sess, h1c->conn, h1c->conn->target)) {
2060 h1c->conn->owner = NULL;
2061 if (!srv_add_to_idle_list(objt_server(h1c->conn->target), h1c->conn))
2062 /* The server doesn't want it, let's kill the connection right away */
2063 h1c->conn->mux->destroy(h1c->conn);
2064 else
2065 tasklet_wakeup(h1c->wait_event.task);
2066 return;
2067
2068 }
Olivier Houchard44d59142018-12-13 18:46:22 +01002069 }
Olivier Houcharda4d4fdf2018-12-14 19:27:06 +01002070 if (h1c->conn->owner == sess) {
2071 int ret = session_check_idle_conn(sess, h1c->conn);
2072 if (ret == -1)
2073 /* The connection got destroyed, let's leave */
2074 return;
2075 else if (ret == 1) {
2076 /* The connection was added to the server list,
2077 * wake the task so we can subscribe to events
2078 */
2079 tasklet_wakeup(h1c->wait_event.task);
2080 return;
2081 }
2082 }
Christopher Faulet9400a392018-11-23 23:10:39 +01002083 /* we're in keep-alive with an idle connection, monitor it if not already done */
Olivier Houchard44d59142018-12-13 18:46:22 +01002084 if (LIST_ISEMPTY(&h1c->conn->list)) {
Christopher Faulet9400a392018-11-23 23:10:39 +01002085 struct server *srv = objt_server(h1c->conn->target);
2086
2087 if (srv) {
2088 if (h1c->conn->flags & CO_FL_PRIVATE)
2089 LIST_ADD(&srv->priv_conns[tid], &h1c->conn->list);
Olivier Houchard8a786902018-12-15 16:05:40 +01002090 else if (is_not_first)
Christopher Faulet9400a392018-11-23 23:10:39 +01002091 LIST_ADD(&srv->safe_conns[tid], &h1c->conn->list);
2092 else
2093 LIST_ADD(&srv->idle_conns[tid], &h1c->conn->list);
2094 }
2095 }
2096 }
2097
Christopher Faulet51dbc942018-09-13 09:05:15 +02002098 /* We don't want to close right now unless the connection is in error */
Christopher Faulet0ef372a2019-04-08 10:57:20 +02002099 if ((h1c->flags & (H1C_F_CS_ERROR|H1C_F_CS_SHUTDOWN|H1C_F_UPG_H2C)) ||
Olivier Houchard7ccff1a2018-12-03 16:33:19 +01002100 (h1c->conn->flags & CO_FL_ERROR) || !h1c->conn->owner)
Christopher Faulet73c12072019-04-08 11:23:22 +02002101 h1_release(h1c);
Christopher Fauletb8093cf2019-01-03 16:27:28 +01002102 else {
Christopher Faulet51dbc942018-09-13 09:05:15 +02002103 tasklet_wakeup(h1c->wait_event.task);
Christopher Fauletb8093cf2019-01-03 16:27:28 +01002104 if (h1c->task) {
2105 h1c->task->expire = TICK_ETERNITY;
2106 if (b_data(&h1c->obuf)) {
Christopher Faulet666a0c42019-01-08 11:12:04 +01002107 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 +01002108 ? h1c->shut_timeout
2109 : h1c->timeout));
2110 task_queue(h1c->task);
2111 }
2112 }
2113 }
Christopher Faulet51dbc942018-09-13 09:05:15 +02002114}
2115
2116
2117static void h1_shutr(struct conn_stream *cs, enum cs_shr_mode mode)
2118{
2119 struct h1s *h1s = cs->ctx;
Christopher Faulet7f366362019-04-08 10:51:20 +02002120 struct h1c *h1c;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002121
2122 if (!h1s)
2123 return;
Christopher Faulet7f366362019-04-08 10:51:20 +02002124 h1c = h1s->h1c;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002125
Christopher Faulet7f366362019-04-08 10:51:20 +02002126 if ((cs->flags & CS_FL_KILL_CONN) || (h1c->conn->flags & (CO_FL_ERROR | CO_FL_SOCK_RD_SH | CO_FL_SOCK_WR_SH)))
2127 goto do_shutr;
2128
Christopher Faulet0ef372a2019-04-08 10:57:20 +02002129 if ((h1c->flags & H1C_F_UPG_H2C) || (h1s->flags & H1S_F_WANT_KAL))
Christopher Fauletf2824e62018-10-01 12:12:37 +02002130 return;
2131
Christopher Faulet7f366362019-04-08 10:51:20 +02002132 do_shutr:
Christopher Faulet51dbc942018-09-13 09:05:15 +02002133 /* NOTE: Be sure to handle abort (cf. h2_shutr) */
2134 if (cs->flags & CS_FL_SHR)
2135 return;
2136 if (conn_xprt_ready(cs->conn) && cs->conn->xprt->shutr)
Olivier Houcharde179d0e2019-03-21 18:27:17 +01002137 cs->conn->xprt->shutr(cs->conn, cs->conn->xprt_ctx,
2138 (mode == CS_SHR_DRAIN));
Christopher Faulet666a0c42019-01-08 11:12:04 +01002139 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 +02002140 h1c->flags = (h1c->flags & ~H1C_F_CS_SHUTW_NOW) | H1C_F_CS_SHUTDOWN;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002141}
2142
2143static void h1_shutw(struct conn_stream *cs, enum cs_shw_mode mode)
2144{
2145 struct h1s *h1s = cs->ctx;
2146 struct h1c *h1c;
2147
2148 if (!h1s)
2149 return;
2150 h1c = h1s->h1c;
2151
Christopher Faulet7f366362019-04-08 10:51:20 +02002152 if ((cs->flags & CS_FL_KILL_CONN) || (h1c->conn->flags & (CO_FL_ERROR | CO_FL_SOCK_RD_SH | CO_FL_SOCK_WR_SH)))
2153 goto do_shutw;
Olivier Houchardd2e88c72018-12-19 15:55:23 +01002154
Christopher Faulet0ef372a2019-04-08 10:57:20 +02002155 if ((h1c->flags & H1C_F_UPG_H2C) ||
2156 ((h1s->flags & H1S_F_WANT_KAL) && h1s->req.state == H1_MSG_DONE && h1s->res.state == H1_MSG_DONE))
Christopher Fauletf2824e62018-10-01 12:12:37 +02002157 return;
2158
Christopher Faulet7f366362019-04-08 10:51:20 +02002159 do_shutw:
Christopher Faulet51dbc942018-09-13 09:05:15 +02002160 h1c->flags |= H1C_F_CS_SHUTW_NOW;
2161 if ((cs->flags & CS_FL_SHW) || b_data(&h1c->obuf))
2162 return;
2163
Christopher Faulet666a0c42019-01-08 11:12:04 +01002164 h1_shutw_conn(cs->conn, mode);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002165}
2166
Christopher Faulet666a0c42019-01-08 11:12:04 +01002167static void h1_shutw_conn(struct connection *conn, enum cs_shw_mode mode)
Christopher Faulet51dbc942018-09-13 09:05:15 +02002168{
Willy Tarreau3d2ee552018-12-19 14:12:10 +01002169 struct h1c *h1c = conn->ctx;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002170
Christopher Faulet666a0c42019-01-08 11:12:04 +01002171 conn_xprt_shutw(conn);
2172 conn_sock_shutw(conn, (mode == CS_SHW_NORMAL));
2173 if ((conn->flags & (CO_FL_SOCK_RD_SH|CO_FL_SOCK_WR_SH)) == (CO_FL_SOCK_RD_SH|CO_FL_SOCK_WR_SH))
2174 h1c->flags = (h1c->flags & ~H1C_F_CS_SHUTW_NOW) | H1C_F_CS_SHUTDOWN;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002175}
2176
2177/* Called from the upper layer, to unsubscribe to events */
2178static int h1_unsubscribe(struct conn_stream *cs, int event_type, void *param)
2179{
2180 struct wait_event *sw;
2181 struct h1s *h1s = cs->ctx;
2182
2183 if (!h1s)
2184 return 0;
2185
Willy Tarreau4f6516d2018-12-19 13:59:17 +01002186 if (event_type & SUB_RETRY_RECV) {
Christopher Faulet51dbc942018-09-13 09:05:15 +02002187 sw = param;
2188 if (h1s->recv_wait == sw) {
Willy Tarreau4f6516d2018-12-19 13:59:17 +01002189 sw->events &= ~SUB_RETRY_RECV;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002190 h1s->recv_wait = NULL;
2191 }
2192 }
Willy Tarreau4f6516d2018-12-19 13:59:17 +01002193 if (event_type & SUB_RETRY_SEND) {
Christopher Faulet51dbc942018-09-13 09:05:15 +02002194 sw = param;
2195 if (h1s->send_wait == sw) {
Willy Tarreau4f6516d2018-12-19 13:59:17 +01002196 sw->events &= ~SUB_RETRY_SEND;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002197 h1s->send_wait = NULL;
2198 }
2199 }
2200 return 0;
2201}
2202
2203/* Called from the upper layer, to subscribe to events, such as being able to send */
2204static int h1_subscribe(struct conn_stream *cs, int event_type, void *param)
2205{
2206 struct wait_event *sw;
2207 struct h1s *h1s = cs->ctx;
2208
2209 if (!h1s)
2210 return -1;
2211
2212 switch (event_type) {
Willy Tarreau4f6516d2018-12-19 13:59:17 +01002213 case SUB_RETRY_RECV:
Christopher Faulet51dbc942018-09-13 09:05:15 +02002214 sw = param;
Willy Tarreau4f6516d2018-12-19 13:59:17 +01002215 if (!(sw->events & SUB_RETRY_RECV)) {
2216 sw->events |= SUB_RETRY_RECV;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002217 sw->handle = h1s;
2218 h1s->recv_wait = sw;
2219 }
2220 return 0;
Willy Tarreau4f6516d2018-12-19 13:59:17 +01002221 case SUB_RETRY_SEND:
Christopher Faulet51dbc942018-09-13 09:05:15 +02002222 sw = param;
Willy Tarreau4f6516d2018-12-19 13:59:17 +01002223 if (!(sw->events & SUB_RETRY_SEND)) {
2224 sw->events |= SUB_RETRY_SEND;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002225 sw->handle = h1s;
2226 h1s->send_wait = sw;
2227 }
2228 return 0;
2229 default:
2230 break;
2231 }
2232 return -1;
2233}
2234
2235/* Called from the upper layer, to receive data */
2236static size_t h1_rcv_buf(struct conn_stream *cs, struct buffer *buf, size_t count, int flags)
2237{
2238 struct h1s *h1s = cs->ctx;
Christopher Faulet539e0292018-11-19 10:40:09 +01002239 struct h1c *h1c = h1s->h1c;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002240 size_t ret = 0;
2241
Christopher Faulet539e0292018-11-19 10:40:09 +01002242 if (!(h1c->flags & H1C_F_IN_ALLOC))
2243 ret = h1_process_input(h1c, buf, flags);
Christopher Faulet1be55f92018-10-02 15:59:23 +02002244
Christopher Faulete18777b2019-04-16 16:46:36 +02002245 if (flags & CO_RFL_BUF_FLUSH) {
2246 struct h1m *h1m = (!conn_is_back(cs->conn) ? &h1s->req : &h1s->res);
2247
2248 if (h1m->state != H1_MSG_TUNNEL || (h1m->state == H1_MSG_DATA && h1m->curr_len))
2249 h1s->flags |= H1S_F_BUF_FLUSH;
2250 }
Christopher Fauletd44ad5b2018-11-19 21:52:12 +01002251 else if (ret > 0 || (h1s->flags & H1S_F_SPLICED_DATA)) {
2252 h1s->flags &= ~H1S_F_SPLICED_DATA;
Willy Tarreau4f6516d2018-12-19 13:59:17 +01002253 if (!(h1c->wait_event.events & SUB_RETRY_RECV))
Christopher Faulet539e0292018-11-19 10:40:09 +01002254 tasklet_wakeup(h1c->wait_event.task);
Christopher Faulet51dbc942018-09-13 09:05:15 +02002255 }
2256 return ret;
2257}
2258
2259
2260/* Called from the upper layer, to send data */
2261static size_t h1_snd_buf(struct conn_stream *cs, struct buffer *buf, size_t count, int flags)
2262{
2263 struct h1s *h1s = cs->ctx;
2264 struct h1c *h1c;
Christopher Faulet5d37dac2018-11-22 10:58:42 +01002265 size_t total = 0;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002266
2267 if (!h1s)
Christopher Faulet5d37dac2018-11-22 10:58:42 +01002268 return 0;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002269
2270 h1c = h1s->h1c;
Christopher Faulet3b88b8d2018-10-26 17:36:03 +02002271 if (h1c->flags & H1C_F_CS_WAIT_CONN)
2272 return 0;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002273
Christopher Faulet5d37dac2018-11-22 10:58:42 +01002274 while (total != count) {
2275 size_t ret = 0;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002276
Christopher Faulet5d37dac2018-11-22 10:58:42 +01002277 if (!(h1c->flags & (H1C_F_OUT_FULL|H1C_F_OUT_ALLOC)))
2278 ret = h1_process_output(h1c, buf, count);
2279 if (!ret)
2280 break;
2281 total += ret;
2282 if (!h1_send(h1c))
2283 break;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002284 }
Christopher Fauletf96c3222018-11-20 18:38:01 +01002285
Christopher Faulet5d37dac2018-11-22 10:58:42 +01002286 return total;
Christopher Faulet51dbc942018-09-13 09:05:15 +02002287}
2288
Christopher Faulet1be55f92018-10-02 15:59:23 +02002289#if defined(CONFIG_HAP_LINUX_SPLICE)
2290/* Send and get, using splicing */
2291static int h1_rcv_pipe(struct conn_stream *cs, struct pipe *pipe, unsigned int count)
2292{
2293 struct h1s *h1s = cs->ctx;
2294 struct h1m *h1m = (!conn_is_back(cs->conn) ? &h1s->req : &h1s->res);
2295 int ret = 0;
2296
Christopher Faulete18777b2019-04-16 16:46:36 +02002297 if ((h1m->state != H1_MSG_DATA && h1m->state != H1_MSG_TUNNEL) ||
2298 (h1m->state == H1_MSG_DATA && !h1m->curr_len)) {
2299 h1s->flags &= ~(H1S_F_BUF_FLUSH|H1S_F_SPLICED_DATA);
Olivier Houcharde179d0e2019-03-21 18:27:17 +01002300 cs->conn->xprt->subscribe(cs->conn, cs->conn->xprt_ctx, SUB_RETRY_RECV, &h1s->h1c->wait_event);
Christopher Faulete18777b2019-04-16 16:46:36 +02002301 goto end;
2302 }
2303
Christopher Fauletd44ad5b2018-11-19 21:52:12 +01002304 if (b_data(&h1s->h1c->ibuf)) {
2305 h1s->flags |= H1S_F_BUF_FLUSH;
Christopher Faulet1be55f92018-10-02 15:59:23 +02002306 goto end;
Christopher Fauletd44ad5b2018-11-19 21:52:12 +01002307 }
2308
2309 h1s->flags &= ~H1S_F_BUF_FLUSH;
2310 h1s->flags |= H1S_F_SPLICED_DATA;
Christopher Faulet1be55f92018-10-02 15:59:23 +02002311 if (h1m->state == H1_MSG_DATA && count > h1m->curr_len)
2312 count = h1m->curr_len;
Olivier Houcharde179d0e2019-03-21 18:27:17 +01002313 ret = cs->conn->xprt->rcv_pipe(cs->conn, cs->conn->xprt_ctx, pipe, count);
Christopher Faulete18777b2019-04-16 16:46:36 +02002314 if (h1m->state == H1_MSG_DATA && ret > 0) {
Christopher Faulet1be55f92018-10-02 15:59:23 +02002315 h1m->curr_len -= ret;
Christopher Faulete18777b2019-04-16 16:46:36 +02002316 if (!h1m->curr_len)
2317 h1s->flags &= ~(H1S_F_BUF_FLUSH|H1S_F_SPLICED_DATA);
2318 }
2319
Christopher Faulet1be55f92018-10-02 15:59:23 +02002320 end:
Christopher Faulet038ad812019-04-17 11:03:22 +02002321 if (conn_xprt_read0_pending(cs->conn)) {
2322 cs->flags |= CS_FL_REOS;
2323 if (!pipe->data)
2324 cs->flags |= CS_FL_EOS;
2325 }
Christopher Faulet1be55f92018-10-02 15:59:23 +02002326 return ret;
Christopher Faulet1be55f92018-10-02 15:59:23 +02002327}
2328
2329static int h1_snd_pipe(struct conn_stream *cs, struct pipe *pipe)
2330{
2331 struct h1s *h1s = cs->ctx;
Christopher Faulet1be55f92018-10-02 15:59:23 +02002332 int ret = 0;
2333
2334 if (b_data(&h1s->h1c->obuf))
2335 goto end;
2336
Olivier Houcharde179d0e2019-03-21 18:27:17 +01002337 ret = cs->conn->xprt->snd_pipe(cs->conn, cs->conn->xprt_ctx, pipe);
Christopher Faulet1be55f92018-10-02 15:59:23 +02002338 end:
Christopher Fauletd44ad5b2018-11-19 21:52:12 +01002339 if (pipe->data) {
Willy Tarreau4f6516d2018-12-19 13:59:17 +01002340 if (!(h1s->h1c->wait_event.events & SUB_RETRY_SEND))
Olivier Houcharde179d0e2019-03-21 18:27:17 +01002341 cs->conn->xprt->subscribe(cs->conn, cs->conn->xprt_ctx, SUB_RETRY_SEND, &h1s->h1c->wait_event);
Christopher Fauletd44ad5b2018-11-19 21:52:12 +01002342 }
Christopher Faulet1be55f92018-10-02 15:59:23 +02002343 return ret;
2344}
2345#endif
2346
Olivier Houcharda8f6b432018-12-21 15:20:29 +01002347/* for debugging with CLI's "show fd" command */
2348static void h1_show_fd(struct buffer *msg, struct connection *conn)
2349{
2350 struct h1c *h1c = conn->ctx;
2351 struct h1s *h1s = h1c->h1s;
2352
Christopher Fauletf376a312019-01-04 15:16:06 +01002353 chunk_appendf(msg, " h1c.flg=0x%x .sub=%d .ibuf=%u@%p+%u/%u .obuf=%u@%p+%u/%u",
2354 h1c->flags, h1c->wait_event.events,
Olivier Houcharda8f6b432018-12-21 15:20:29 +01002355 (unsigned int)b_data(&h1c->ibuf), b_orig(&h1c->ibuf),
2356 (unsigned int)b_head_ofs(&h1c->ibuf), (unsigned int)b_size(&h1c->ibuf),
2357 (unsigned int)b_data(&h1c->obuf), b_orig(&h1c->obuf),
2358 (unsigned int)b_head_ofs(&h1c->obuf), (unsigned int)b_size(&h1c->obuf));
2359
2360 if (h1s) {
2361 char *method;
2362
2363 if (h1s->meth < HTTP_METH_OTHER)
2364 method = http_known_methods[h1s->meth].ptr;
2365 else
2366 method = "UNKNOWN";
2367 chunk_appendf(msg, " h1s=%p h1s.flg=0x%x .req.state=%s .res.state=%s"
2368 " .meth=%s status=%d",
2369 h1s, h1s->flags,
2370 h1m_state_str(h1s->req.state),
2371 h1m_state_str(h1s->res.state), method, h1s->status);
2372 if (h1s->cs)
2373 chunk_appendf(msg, " .cs.flg=0x%08x .cs.data=%p",
2374 h1s->cs->flags, h1s->cs->data);
2375 }
2376}
2377
Christopher Faulet51dbc942018-09-13 09:05:15 +02002378/****************************************/
2379/* MUX initialization and instanciation */
2380/****************************************/
2381
2382/* The mux operations */
Willy Tarreauf77a1582019-01-10 10:00:08 +01002383static const struct mux_ops mux_h1_ops = {
Christopher Faulet51dbc942018-09-13 09:05:15 +02002384 .init = h1_init,
2385 .wake = h1_wake,
2386 .attach = h1_attach,
2387 .get_first_cs = h1_get_first_cs,
Christopher Fauletfeb11742018-11-29 15:12:34 +01002388 .get_cs_info = h1_get_cs_info,
Christopher Faulet51dbc942018-09-13 09:05:15 +02002389 .detach = h1_detach,
2390 .destroy = h1_destroy,
2391 .avail_streams = h1_avail_streams,
Willy Tarreau00f18a32019-01-26 12:19:01 +01002392 .used_streams = h1_used_streams,
Christopher Faulet51dbc942018-09-13 09:05:15 +02002393 .rcv_buf = h1_rcv_buf,
2394 .snd_buf = h1_snd_buf,
Christopher Faulet1be55f92018-10-02 15:59:23 +02002395#if defined(CONFIG_HAP_LINUX_SPLICE)
2396 .rcv_pipe = h1_rcv_pipe,
2397 .snd_pipe = h1_snd_pipe,
2398#endif
Christopher Faulet51dbc942018-09-13 09:05:15 +02002399 .subscribe = h1_subscribe,
2400 .unsubscribe = h1_unsubscribe,
2401 .shutr = h1_shutr,
2402 .shutw = h1_shutw,
Olivier Houcharda8f6b432018-12-21 15:20:29 +01002403 .show_fd = h1_show_fd,
Olivier Houchard9a86fcb2018-12-11 16:47:14 +01002404 .reset = h1_reset,
Christopher Faulet9f38f5a2019-04-03 09:53:32 +02002405 .flags = MX_FL_HTX,
Christopher Faulet51dbc942018-09-13 09:05:15 +02002406 .name = "h1",
2407};
2408
2409
2410/* this mux registers default HTX proto */
2411static struct mux_proto_list mux_proto_htx =
2412{ .token = IST(""), .mode = PROTO_MODE_HTX, .side = PROTO_SIDE_BOTH, .mux = &mux_h1_ops };
2413
Willy Tarreau0108d902018-11-25 19:14:37 +01002414INITCALL1(STG_REGISTER, register_mux_proto, &mux_proto_htx);
2415
Christopher Faulet51dbc942018-09-13 09:05:15 +02002416/*
2417 * Local variables:
2418 * c-indent-level: 8
2419 * c-basic-offset: 8
2420 * End:
2421 */