2 b0a6bcf7 2022-09-13 op * Copyright (c) 2022 Omar Polo <op@omarpolo.com>
3 b0a6bcf7 2022-09-13 op * Copyright (c) 2006 - 2015 Reyk Floeter <reyk@openbsd.org>
5 b0a6bcf7 2022-09-13 op * Permission to use, copy, modify, and distribute this software for any
6 b0a6bcf7 2022-09-13 op * purpose with or without fee is hereby granted, provided that the above
7 b0a6bcf7 2022-09-13 op * copyright notice and this permission notice appear in all copies.
9 b0a6bcf7 2022-09-13 op * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 b0a6bcf7 2022-09-13 op * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 b0a6bcf7 2022-09-13 op * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 b0a6bcf7 2022-09-13 op * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 b0a6bcf7 2022-09-13 op * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 b0a6bcf7 2022-09-13 op * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 b0a6bcf7 2022-09-13 op * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18 b0a6bcf7 2022-09-13 op #include <sys/types.h>
19 b0a6bcf7 2022-09-13 op #include <sys/queue.h>
20 b0a6bcf7 2022-09-13 op #include <sys/tree.h>
21 b0a6bcf7 2022-09-13 op #include <sys/socket.h>
22 b0a6bcf7 2022-09-13 op #include <sys/uio.h>
24 b0a6bcf7 2022-09-13 op #include <netinet/in.h>
25 b0a6bcf7 2022-09-13 op #include <arpa/inet.h>
26 b0a6bcf7 2022-09-13 op #include <netdb.h>
28 b0a6bcf7 2022-09-13 op #include <asr.h>
29 b0a6bcf7 2022-09-13 op #include <ctype.h>
30 b0a6bcf7 2022-09-13 op #include <errno.h>
31 b0a6bcf7 2022-09-13 op #include <event.h>
32 b0a6bcf7 2022-09-13 op #include <limits.h>
33 b0a6bcf7 2022-09-13 op #include <stdlib.h>
34 b0a6bcf7 2022-09-13 op #include <stdint.h>
35 b0a6bcf7 2022-09-13 op #include <stdio.h>
36 b0a6bcf7 2022-09-13 op #include <string.h>
37 b0a6bcf7 2022-09-13 op #include <imsg.h>
38 b0a6bcf7 2022-09-13 op #include <tls.h>
39 b0a6bcf7 2022-09-13 op #include <unistd.h>
41 b0a6bcf7 2022-09-13 op #include "log.h"
42 b0a6bcf7 2022-09-13 op #include "proc.h"
44 b0a6bcf7 2022-09-13 op #include "galileo.h"
46 b0a6bcf7 2022-09-13 op #define MINIMUM(a, b) ((a) < (b) ? (a) : (b))
48 b0a6bcf7 2022-09-13 op /* provided by OpenBSD' base libevent but not in any header? */
49 b0a6bcf7 2022-09-13 op extern void bufferevent_read_pressure_cb(struct evbuffer *, size_t,
50 b0a6bcf7 2022-09-13 op size_t, void *);
52 b0a6bcf7 2022-09-13 op void proxy_init(struct privsep *, struct privsep_proc *, void *);
53 b0a6bcf7 2022-09-13 op int proxy_launch(struct galileo *);
54 b0a6bcf7 2022-09-13 op void proxy_accept(int, short, void *);
55 b0a6bcf7 2022-09-13 op void proxy_inflight_dec(const char *);
56 b0a6bcf7 2022-09-13 op int proxy_dispatch_parent(int, struct privsep_proc *, struct imsg *);
57 b0a6bcf7 2022-09-13 op void proxy_resolved(struct asr_result *, void *);
58 b0a6bcf7 2022-09-13 op void proxy_connect(int, short, void *);
59 b0a6bcf7 2022-09-13 op void proxy_read(struct bufferevent *, void *);
60 b0a6bcf7 2022-09-13 op void proxy_write(struct bufferevent *, void *);
61 b0a6bcf7 2022-09-13 op void proxy_error(struct bufferevent *, short, void *);
62 b0a6bcf7 2022-09-13 op int proxy_bufferevent_add(struct event *, int);
63 b0a6bcf7 2022-09-13 op void proxy_tls_writecb(int, short, void *);
64 b0a6bcf7 2022-09-13 op void proxy_tls_readcb(int, short, void *);
66 b0a6bcf7 2022-09-13 op static struct privsep_proc procs[] = {
67 b0a6bcf7 2022-09-13 op { "parent", PROC_PARENT, proxy_dispatch_parent },
70 b0a6bcf7 2022-09-13 op volatile int proxy_clients;
71 b0a6bcf7 2022-09-13 op volatile int proxy_inflight;
72 b0a6bcf7 2022-09-13 op uint32_t proxy_fcg_id;
75 b0a6bcf7 2022-09-13 op proxy(struct privsep *ps, struct privsep_proc *p)
77 b0a6bcf7 2022-09-13 op proc_run(ps, p, procs, nitems(procs), proxy_init, NULL);
81 b0a6bcf7 2022-09-13 op proxy_init(struct privsep *ps, struct privsep_proc *p, void *arg)
83 b0a6bcf7 2022-09-13 op if (config_init(ps->ps_env) == -1)
84 b0a6bcf7 2022-09-13 op fatal("failed to initialize configuration");
86 b0a6bcf7 2022-09-13 op /* We use a custom shutdown callback */
87 b0a6bcf7 2022-09-13 op /* p->p_shutdown = proxy_shutdown */
89 b0a6bcf7 2022-09-13 op if (pledge("stdio recvfd unix inet dns", NULL) == -1)
90 b0a6bcf7 2022-09-13 op fatal("pledge");
94 b0a6bcf7 2022-09-13 op proxy_launch(struct galileo *env)
96 b0a6bcf7 2022-09-13 op event_add(&env->sc_evsock, NULL);
101 b0a6bcf7 2022-09-13 op proxy_purge(struct server *srv)
106 b0a6bcf7 2022-09-13 op proxy_accept(int fd, short event, void *arg)
108 b0a6bcf7 2022-09-13 op struct galileo *env = arg;
110 b0a6bcf7 2022-09-13 op log_debug("%s", __func__);
111 b0a6bcf7 2022-09-13 op fcgi_accept(env);
115 b0a6bcf7 2022-09-13 op proxy_inflight_dec(const char *why)
117 b0a6bcf7 2022-09-13 op proxy_inflight--;
118 b0a6bcf7 2022-09-13 op log_debug("%s: inflight decremented, now %d, %s",
119 b0a6bcf7 2022-09-13 op __func__, proxy_inflight, why);
123 b0a6bcf7 2022-09-13 op proxy_dispatch_parent(int fd, struct privsep_proc *p, struct imsg *imsg)
125 b0a6bcf7 2022-09-13 op struct privsep *ps = p->p_ps;
126 b0a6bcf7 2022-09-13 op struct galileo *env = ps->ps_env;
128 b0a6bcf7 2022-09-13 op switch (imsg->hdr.type) {
129 b0a6bcf7 2022-09-13 op case IMSG_CFG_SRV:
130 b0a6bcf7 2022-09-13 op if (config_getserver(env, imsg) == -1)
131 b0a6bcf7 2022-09-13 op fatal("config_getproxy");
133 b0a6bcf7 2022-09-13 op case IMSG_CFG_SOCK:
134 b0a6bcf7 2022-09-13 op /* XXX: improve */
136 b0a6bcf7 2022-09-13 op if (env->sc_sock_fd != -1) {
137 b0a6bcf7 2022-09-13 op event_del(&env->sc_evsock);
138 b0a6bcf7 2022-09-13 op close(env->sc_sock_fd);
141 b0a6bcf7 2022-09-13 op env->sc_sock_fd = config_getsock(env, imsg);
142 b0a6bcf7 2022-09-13 op if (env->sc_sock_fd == -1)
143 b0a6bcf7 2022-09-13 op fatal("config_getsock");
145 b0a6bcf7 2022-09-13 op event_set(&env->sc_evsock, env->sc_sock_fd,
146 b0a6bcf7 2022-09-13 op EV_READ | EV_PERSIST, proxy_accept, env);
147 b0a6bcf7 2022-09-13 op event_add(&env->sc_evsock, NULL);
148 b0a6bcf7 2022-09-13 op /* evtimer_set(&env->sc_evpause, proxy_accept_paused, env); */
150 b0a6bcf7 2022-09-13 op case IMSG_CFG_DONE:
151 b0a6bcf7 2022-09-13 op log_debug("config done!");
153 b0a6bcf7 2022-09-13 op case IMSG_CTL_START:
154 b0a6bcf7 2022-09-13 op proxy_launch(env);
157 b0a6bcf7 2022-09-13 op log_warnx("unknown message %d", imsg->hdr.type);
164 b0a6bcf7 2022-09-13 op static struct proxy_config *
165 b0a6bcf7 2022-09-13 op proxy_server_match(struct galileo *env, struct client *clt)
167 b0a6bcf7 2022-09-13 op struct server *srv;
169 b0a6bcf7 2022-09-13 op if (clt->clt_server_name == NULL)
172 b0a6bcf7 2022-09-13 op TAILQ_FOREACH(srv, &env->sc_servers, srv_entry) {
173 b0a6bcf7 2022-09-13 op if (!strcmp(clt->clt_server_name, srv->srv_conf.host))
174 b0a6bcf7 2022-09-13 op return &srv->srv_conf;
181 b0a6bcf7 2022-09-13 op proxy_start_request(struct galileo *env, struct client *clt)
183 b0a6bcf7 2022-09-13 op struct addrinfo hints;
184 b0a6bcf7 2022-09-13 op struct asr_query *query;
185 b0a6bcf7 2022-09-13 op char port[32];
187 b0a6bcf7 2022-09-13 op if ((clt->clt_pc = proxy_server_match(env, clt)) == NULL) {
188 b0a6bcf7 2022-09-13 op if (clt_printf(clt, "Status: 501\r\n\r\n") == -1)
190 b0a6bcf7 2022-09-13 op fcgi_end_request(clt, 1);
194 b0a6bcf7 2022-09-13 op (void)snprintf(port, sizeof(port), "%d", clt->clt_pc->proxy_port);
196 b0a6bcf7 2022-09-13 op memset(&hints, 0, sizeof(hints));
197 b0a6bcf7 2022-09-13 op hints.ai_family = AF_UNSPEC;
198 b0a6bcf7 2022-09-13 op hints.ai_socktype = SOCK_STREAM;
200 b0a6bcf7 2022-09-13 op query = getaddrinfo_async(clt->clt_pc->proxy_addr, port, &hints, NULL);
201 b0a6bcf7 2022-09-13 op if (query == NULL) {
202 b0a6bcf7 2022-09-13 op log_warn("getaddrinfo_async");
203 b0a6bcf7 2022-09-13 op fcgi_abort_request(clt);
207 b0a6bcf7 2022-09-13 op clt->clt_evasr = event_asr_run(query, proxy_resolved, clt);
208 b0a6bcf7 2022-09-13 op if (clt->clt_evasr == NULL) {
209 b0a6bcf7 2022-09-13 op log_warn("event_asr_run");
210 b0a6bcf7 2022-09-13 op asr_abort(query);
211 b0a6bcf7 2022-09-13 op fcgi_abort_request(clt);
217 b0a6bcf7 2022-09-13 op proxy_resolved(struct asr_result *res, void *d)
219 b0a6bcf7 2022-09-13 op struct client *clt = d;
220 b0a6bcf7 2022-09-13 op struct proxy_config *pc = clt->clt_pc;
222 b0a6bcf7 2022-09-13 op clt->clt_evasr = NULL;
224 b0a6bcf7 2022-09-13 op if (res->ar_gai_errno != 0) {
225 b0a6bcf7 2022-09-13 op log_warnx("failed to resolve %s:%d: %s",
226 b0a6bcf7 2022-09-13 op pc->proxy_addr, pc->proxy_port,
227 b0a6bcf7 2022-09-13 op gai_strerror(res->ar_gai_errno));
228 b0a6bcf7 2022-09-13 op if (clt_printf(clt, "Status: 501\r\n") == -1)
230 b0a6bcf7 2022-09-13 op if (clt_printf(clt, "Content-Type: text/plain\r\n") == -1)
232 b0a6bcf7 2022-09-13 op if (clt_printf(clt, "Proxy error; connection failed") == -1)
234 b0a6bcf7 2022-09-13 op fcgi_end_request(clt, 1);
238 b0a6bcf7 2022-09-13 op clt->clt_addrinfo = res->ar_addrinfo;
239 b0a6bcf7 2022-09-13 op clt->clt_p = clt->clt_addrinfo;
240 b0a6bcf7 2022-09-13 op proxy_connect(-1, 0, clt);
244 b0a6bcf7 2022-09-13 op proxy_connect(int fd, short ev, void *d)
246 b0a6bcf7 2022-09-13 op struct client *clt = d;
247 b0a6bcf7 2022-09-13 op struct evbuffer *out;
248 b0a6bcf7 2022-09-13 op struct addrinfo *p;
249 b0a6bcf7 2022-09-13 op struct tls_config *conf;
250 b0a6bcf7 2022-09-13 op struct timeval conntv = {5, 0};
252 b0a6bcf7 2022-09-13 op socklen_t len = sizeof(err);
255 b0a6bcf7 2022-09-13 op if (clt->clt_p == NULL)
258 b0a6bcf7 2022-09-13 op if (clt->clt_fd != -1) {
259 b0a6bcf7 2022-09-13 op if (getsockopt(clt->clt_fd, SOL_SOCKET, SO_ERROR, &err, &len)
262 b0a6bcf7 2022-09-13 op if (err != 0) {
269 b0a6bcf7 2022-09-13 op p = clt->clt_p;
270 b0a6bcf7 2022-09-13 op clt->clt_fd = socket(p->ai_family, p->ai_socktype | SOCK_NONBLOCK,
271 b0a6bcf7 2022-09-13 op p->ai_protocol);
272 b0a6bcf7 2022-09-13 op if (clt->clt_fd == -1) {
273 b0a6bcf7 2022-09-13 op clt->clt_p = clt->clt_p->ai_next;
277 b0a6bcf7 2022-09-13 op if (connect(clt->clt_fd, p->ai_addr, p->ai_addrlen) == 0)
280 b0a6bcf7 2022-09-13 op clt->clt_evconn_live = 1;
281 b0a6bcf7 2022-09-13 op event_set(&clt->clt_evconn, clt->clt_fd, EV_WRITE, proxy_connect, clt);
282 b0a6bcf7 2022-09-13 op event_add(&clt->clt_evconn, &conntv);
286 b0a6bcf7 2022-09-13 op clt->clt_evconn_live = 0;
287 b0a6bcf7 2022-09-13 op freeaddrinfo(clt->clt_addrinfo);
288 b0a6bcf7 2022-09-13 op clt->clt_addrinfo = clt->clt_p = NULL;
290 b0a6bcf7 2022-09-13 op /* initialize TLS for Gemini */
291 b0a6bcf7 2022-09-13 op if ((conf = tls_config_new()) == NULL) {
292 b0a6bcf7 2022-09-13 op log_warn("tls_config_new failed");
296 b0a6bcf7 2022-09-13 op tls_config_insecure_noverifycert(conf);
298 b0a6bcf7 2022-09-13 op if ((clt->clt_ctx = tls_client()) == NULL) {
299 b0a6bcf7 2022-09-13 op log_warnx("tls_client failed");
300 b0a6bcf7 2022-09-13 op tls_config_free(conf);
304 b0a6bcf7 2022-09-13 op if (tls_configure(clt->clt_ctx, conf) == -1) {
305 b0a6bcf7 2022-09-13 op log_warnx("tls_configure failed");
306 b0a6bcf7 2022-09-13 op tls_config_free(conf);
310 b0a6bcf7 2022-09-13 op tls_config_free(conf);
312 b0a6bcf7 2022-09-13 op if (tls_connect_socket(clt->clt_ctx, clt->clt_fd,
313 b0a6bcf7 2022-09-13 op clt->clt_pc->proxy_name) == -1) {
314 b0a6bcf7 2022-09-13 op log_warnx("tls_connect_socket failed");
318 b0a6bcf7 2022-09-13 op clt->clt_bev = bufferevent_new(clt->clt_fd, proxy_read, proxy_write,
319 b0a6bcf7 2022-09-13 op proxy_error, clt);
320 b0a6bcf7 2022-09-13 op if (clt->clt_bev == NULL) {
321 b0a6bcf7 2022-09-13 op log_warn("bufferevent_new");
324 b0a6bcf7 2022-09-13 op out = EVBUFFER_OUTPUT(clt->clt_bev);
326 b0a6bcf7 2022-09-13 op event_set(&clt->clt_bev->ev_read, clt->clt_fd, EV_READ,
327 b0a6bcf7 2022-09-13 op proxy_tls_readcb, clt->clt_bev);
328 b0a6bcf7 2022-09-13 op event_set(&clt->clt_bev->ev_write, clt->clt_fd, EV_WRITE,
329 b0a6bcf7 2022-09-13 op proxy_tls_writecb, clt->clt_bev);
331 b0a6bcf7 2022-09-13 op /* bufferevent_settimeout(); */
332 b0a6bcf7 2022-09-13 op bufferevent_enable(clt->clt_bev, EV_READ|EV_WRITE);
334 b0a6bcf7 2022-09-13 op /* TODO: compute the URL */
335 b0a6bcf7 2022-09-13 op if (evbuffer_add_printf(out, "gemini://localhost/\r\n") == -1) {
336 b0a6bcf7 2022-09-13 op log_warn("bufferevent_printf failed");
343 b0a6bcf7 2022-09-13 op log_warn("failed to connect to %s:%d",
344 b0a6bcf7 2022-09-13 op clt->clt_pc->proxy_addr, clt->clt_pc->proxy_port);
345 b0a6bcf7 2022-09-13 op if (clt_printf(clt, "Status: 501\r\n") == -1)
347 b0a6bcf7 2022-09-13 op if (clt_printf(clt, "Content-Type: text/plain\r\n") == -1)
349 b0a6bcf7 2022-09-13 op if (clt_printf(clt, "Proxy error; connection failed") == -1)
351 b0a6bcf7 2022-09-13 op fcgi_end_request(clt, 1);
355 b0a6bcf7 2022-09-13 op proxy_read(struct bufferevent *bev, void *d)
357 b0a6bcf7 2022-09-13 op struct client *clt = d;
358 b0a6bcf7 2022-09-13 op struct evbuffer *src = EVBUFFER_INPUT(bev);
363 b0a6bcf7 2022-09-13 op if (clt->clt_headersdone) {
365 b0a6bcf7 2022-09-13 op clt_write_bufferevent(clt, bev);
369 b0a6bcf7 2022-09-13 op hdr = evbuffer_readln(src, &len, EVBUFFER_EOL_CRLF_STRICT);
370 b0a6bcf7 2022-09-13 op if (hdr == NULL) {
371 b0a6bcf7 2022-09-13 op if (EVBUFFER_LENGTH(src) >= 1026)
372 b0a6bcf7 2022-09-13 op proxy_error(bev, EV_READ, clt);
376 b0a6bcf7 2022-09-13 op if (len < 4 ||
377 b0a6bcf7 2022-09-13 op !isdigit((unsigned char)hdr[0]) ||
378 b0a6bcf7 2022-09-13 op !isdigit((unsigned char)hdr[1]) ||
379 b0a6bcf7 2022-09-13 op hdr[2] != ' ') {
380 b0a6bcf7 2022-09-13 op log_warnx("invalid ");
382 b0a6bcf7 2022-09-13 op proxy_error(bev, EV_READ, clt);
386 b0a6bcf7 2022-09-13 op code = (hdr[0] - '0') * 10 + (hdr[1] - '0');
387 b0a6bcf7 2022-09-13 op if (code != 20) {
388 b0a6bcf7 2022-09-13 op log_warnx("un-handled gemini reply status %d", code);
390 b0a6bcf7 2022-09-13 op proxy_error(bev, EV_READ, clt);
394 b0a6bcf7 2022-09-13 op if (clt_printf(clt, "Content-Type: %s\r\n", &hdr[4]) == -1)
396 b0a6bcf7 2022-09-13 op if (clt_printf(clt, "\r\n") == -1)
399 b0a6bcf7 2022-09-13 op clt->clt_headersdone = 1;
404 b0a6bcf7 2022-09-13 op proxy_write(struct bufferevent *bev, void *d)
410 b0a6bcf7 2022-09-13 op proxy_error(struct bufferevent *bev, short err, void *d)
412 b0a6bcf7 2022-09-13 op struct client *clt = d;
413 b0a6bcf7 2022-09-13 op int status = !(err & EVBUFFER_EOF);
415 b0a6bcf7 2022-09-13 op log_debug("proxy error, shutting down the connection (err: %x)",
418 b0a6bcf7 2022-09-13 op if (!clt->clt_headersdone) {
419 b0a6bcf7 2022-09-13 op if (clt_printf(clt, "Status: 501\r\n") == -1)
421 b0a6bcf7 2022-09-13 op if (clt_printf(clt, "Content-Type: text/plain\r\n") == -1)
423 b0a6bcf7 2022-09-13 op if (clt_printf(clt, "Proxy error\n") == -1)
427 b0a6bcf7 2022-09-13 op fcgi_end_request(clt, status);
431 b0a6bcf7 2022-09-13 op proxy_tls_readcb(int fd, short event, void *arg)
433 b0a6bcf7 2022-09-13 op struct bufferevent *bufev = arg;
434 b0a6bcf7 2022-09-13 op struct client *clt = bufev->cbarg;
435 b0a6bcf7 2022-09-13 op char rbuf[IBUF_READ_SIZE];
436 b0a6bcf7 2022-09-13 op int what = EVBUFFER_READ;
437 b0a6bcf7 2022-09-13 op int howmuch = IBUF_READ_SIZE;
441 b0a6bcf7 2022-09-13 op if (event == EV_TIMEOUT) {
442 b0a6bcf7 2022-09-13 op what |= EVBUFFER_TIMEOUT;
446 b0a6bcf7 2022-09-13 op if (bufev->wm_read.high != 0)
447 b0a6bcf7 2022-09-13 op howmuch = MINIMUM(sizeof(rbuf), bufev->wm_read.high);
449 b0a6bcf7 2022-09-13 op ret = tls_read(clt->clt_ctx, rbuf, howmuch);
450 b0a6bcf7 2022-09-13 op if (ret == TLS_WANT_POLLIN || ret == TLS_WANT_POLLOUT) {
452 b0a6bcf7 2022-09-13 op } else if (ret == -1) {
453 b0a6bcf7 2022-09-13 op what |= EVBUFFER_ERROR;
458 b0a6bcf7 2022-09-13 op if (len == 0) {
459 b0a6bcf7 2022-09-13 op what |= EVBUFFER_EOF;
463 b0a6bcf7 2022-09-13 op if (evbuffer_add(bufev->input, rbuf, len) == -1) {
464 b0a6bcf7 2022-09-13 op what |= EVBUFFER_ERROR;
468 b0a6bcf7 2022-09-13 op proxy_bufferevent_add(&bufev->ev_read, bufev->timeout_read);
470 b0a6bcf7 2022-09-13 op len = EVBUFFER_LENGTH(bufev->input);
471 b0a6bcf7 2022-09-13 op if (bufev->wm_read.low != 0 && len < bufev->wm_read.low)
473 b0a6bcf7 2022-09-13 op if (bufev->wm_read.high != 0 && len > bufev->wm_read.high) {
474 b0a6bcf7 2022-09-13 op struct evbuffer *buf = bufev->input;
475 b0a6bcf7 2022-09-13 op event_del(&bufev->ev_read);
476 b0a6bcf7 2022-09-13 op evbuffer_setcb(buf, bufferevent_read_pressure_cb, bufev);
480 b0a6bcf7 2022-09-13 op if (bufev->readcb != NULL)
481 b0a6bcf7 2022-09-13 op (*bufev->readcb)(bufev, bufev->cbarg);
485 b0a6bcf7 2022-09-13 op proxy_bufferevent_add(&bufev->ev_read, bufev->timeout_read);
489 b0a6bcf7 2022-09-13 op (*bufev->errorcb)(bufev, what, bufev->cbarg);
493 b0a6bcf7 2022-09-13 op proxy_bufferevent_add(struct event *ev, int timeout)
495 b0a6bcf7 2022-09-13 op struct timeval tv, *ptv = NULL;
497 b0a6bcf7 2022-09-13 op if (timeout) {
498 b0a6bcf7 2022-09-13 op timerclear(&tv);
499 b0a6bcf7 2022-09-13 op tv.tv_sec = timeout;
503 b0a6bcf7 2022-09-13 op return (event_add(ev, ptv));
507 b0a6bcf7 2022-09-13 op proxy_tls_writecb(int fd, short event, void *arg)
509 b0a6bcf7 2022-09-13 op struct bufferevent *bufev = arg;
510 b0a6bcf7 2022-09-13 op struct client *clt = bufev->cbarg;
512 b0a6bcf7 2022-09-13 op short what = EVBUFFER_WRITE;
515 b0a6bcf7 2022-09-13 op if (event == EV_TIMEOUT) {
516 b0a6bcf7 2022-09-13 op what |= EVBUFFER_TIMEOUT;
520 b0a6bcf7 2022-09-13 op if (EVBUFFER_LENGTH(bufev->output)) {
521 b0a6bcf7 2022-09-13 op ret = tls_write(clt->clt_ctx,
522 b0a6bcf7 2022-09-13 op EVBUFFER_DATA(bufev->output),
523 b0a6bcf7 2022-09-13 op EVBUFFER_LENGTH(bufev->output));
524 b0a6bcf7 2022-09-13 op if (ret == TLS_WANT_POLLIN || ret == TLS_WANT_POLLOUT) {
526 b0a6bcf7 2022-09-13 op } else if (ret == -1) {
527 b0a6bcf7 2022-09-13 op what |= EVBUFFER_ERROR;
531 b0a6bcf7 2022-09-13 op evbuffer_drain(bufev->output, len);
534 b0a6bcf7 2022-09-13 op if (EVBUFFER_LENGTH(bufev->output) != 0)
535 b0a6bcf7 2022-09-13 op proxy_bufferevent_add(&bufev->ev_write, bufev->timeout_write);
537 b0a6bcf7 2022-09-13 op if (bufev->writecb != NULL &&
538 b0a6bcf7 2022-09-13 op EVBUFFER_LENGTH(bufev->output) <= bufev->wm_write.low)
539 b0a6bcf7 2022-09-13 op (*bufev->writecb)(bufev, bufev->cbarg);
543 b0a6bcf7 2022-09-13 op proxy_bufferevent_add(&bufev->ev_write, bufev->timeout_write);
547 b0a6bcf7 2022-09-13 op (*bufev->errorcb)(bufev, what, bufev->cbarg);
551 b0a6bcf7 2022-09-13 op proxy_client_free(struct client *clt)
553 b0a6bcf7 2022-09-13 op if (clt->clt_evasr)
554 b0a6bcf7 2022-09-13 op event_asr_abort(clt->clt_evasr);
556 b0a6bcf7 2022-09-13 op if (clt->clt_addrinfo)
557 b0a6bcf7 2022-09-13 op freeaddrinfo(clt->clt_addrinfo);
559 b0a6bcf7 2022-09-13 op if (clt->clt_evconn_live)
560 b0a6bcf7 2022-09-13 op event_del(&clt->clt_evconn);
562 b0a6bcf7 2022-09-13 op if (clt->clt_fd != -1)
563 b0a6bcf7 2022-09-13 op close(clt->clt_fd);
565 b0a6bcf7 2022-09-13 op if (clt->clt_ctx)
566 b0a6bcf7 2022-09-13 op tls_free(clt->clt_ctx);
568 b0a6bcf7 2022-09-13 op if (clt->clt_bev)
569 b0a6bcf7 2022-09-13 op bufferevent_free(clt->clt_bev);
571 b0a6bcf7 2022-09-13 op free(clt->clt_server_name);
572 b0a6bcf7 2022-09-13 op free(clt->clt_script_name);
573 b0a6bcf7 2022-09-13 op free(clt->clt_path_info);