1 a596b957 2022-07-14 tracey /*
  2 a596b957 2022-07-14 tracey  * Copyright (c) 2016, 2019, 2020-2021 Tracey Emery <tracey@traceyemery.net>
  3 a596b957 2022-07-14 tracey  * Copyright (c) 2015 Mike Larkin <mlarkin@openbsd.org>
  4 a596b957 2022-07-14 tracey  * Copyright (c) 2013 David Gwynne <dlg@openbsd.org>
  5 a596b957 2022-07-14 tracey  * Copyright (c) 2013 Florian Obser <florian@openbsd.org>
  6 a596b957 2022-07-14 tracey  *
  7 a596b957 2022-07-14 tracey  * Permission to use, copy, modify, and distribute this software for any
  8 a596b957 2022-07-14 tracey  * purpose with or without fee is hereby granted, provided that the above
  9 a596b957 2022-07-14 tracey  * copyright notice and this permission notice appear in all copies.
 10 a596b957 2022-07-14 tracey  *
 11 a596b957 2022-07-14 tracey  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 12 a596b957 2022-07-14 tracey  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 13 a596b957 2022-07-14 tracey  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 14 a596b957 2022-07-14 tracey  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 15 a596b957 2022-07-14 tracey  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 16 a596b957 2022-07-14 tracey  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 17 a596b957 2022-07-14 tracey  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 18 a596b957 2022-07-14 tracey  */
 19 a596b957 2022-07-14 tracey 
 20 a596b957 2022-07-14 tracey #include <sys/param.h>
 21 a596b957 2022-07-14 tracey #include <sys/ioctl.h>
 22 a596b957 2022-07-14 tracey #include <sys/queue.h>
 23 a596b957 2022-07-14 tracey #include <sys/wait.h>
 24 a596b957 2022-07-14 tracey #include <sys/uio.h>
 25 a596b957 2022-07-14 tracey #include <sys/resource.h>
 26 a596b957 2022-07-14 tracey #include <sys/socket.h>
 27 a596b957 2022-07-14 tracey #include <sys/stat.h>
 28 a596b957 2022-07-14 tracey #include <sys/time.h>
 29 a596b957 2022-07-14 tracey #include <sys/types.h>
 30 a596b957 2022-07-14 tracey #include <sys/mman.h>
 31 a596b957 2022-07-14 tracey #include <sys/un.h>
 32 a596b957 2022-07-14 tracey 
 33 a596b957 2022-07-14 tracey #include <net/if.h>
 34 a596b957 2022-07-14 tracey #include <netinet/in.h>
 35 a596b957 2022-07-14 tracey 
 36 a596b957 2022-07-14 tracey #include <errno.h>
 37 a596b957 2022-07-14 tracey #include <event.h>
 38 a596b957 2022-07-14 tracey #include <fcntl.h>
 39 a596b957 2022-07-14 tracey #include <ifaddrs.h>
 40 a596b957 2022-07-14 tracey #include <imsg.h>
 41 a596b957 2022-07-14 tracey #include <limits.h>
 42 a596b957 2022-07-14 tracey #include <netdb.h>
 43 a596b957 2022-07-14 tracey #include <poll.h>
 44 a596b957 2022-07-14 tracey #include <pwd.h>
 45 a596b957 2022-07-14 tracey #include <stddef.h>
 46 a596b957 2022-07-14 tracey #include <stdio.h>
 47 a596b957 2022-07-14 tracey #include <stdlib.h>
 48 a596b957 2022-07-14 tracey #include <string.h>
 49 a596b957 2022-07-14 tracey #include <unistd.h>
 50 a596b957 2022-07-14 tracey #include <util.h>
 51 a596b957 2022-07-14 tracey 
 52 a596b957 2022-07-14 tracey #include "got_error.h"
 53 a596b957 2022-07-14 tracey #include "got_opentemp.h"
 54 df2d3cd2 2023-03-11 op #include "got_reference.h"
 55 b5c757f5 2022-09-01 stsp #include "got_repository.h"
 56 6fe3b58a 2023-11-14 stsp #include "got_privsep.h"
 57 a596b957 2022-07-14 tracey 
 58 a596b957 2022-07-14 tracey #include "proc.h"
 59 a596b957 2022-07-14 tracey #include "gotwebd.h"
 60 ed619ca0 2022-12-14 op #include "tmpl.h"
 61 a596b957 2022-07-14 tracey 
 62 a596b957 2022-07-14 tracey #define SOCKS_BACKLOG 5
 63 a596b957 2022-07-14 tracey #define MAXIMUM(a, b)	(((a) > (b)) ? (a) : (b))
 64 a596b957 2022-07-14 tracey 
 65 a596b957 2022-07-14 tracey 
 66 a596b957 2022-07-14 tracey volatile int client_cnt;
 67 a596b957 2022-07-14 tracey 
 68 026ac2c4 2022-08-20 stsp static struct timeval	timeout = { TIMEOUT_DEFAULT, 0 };
 69 a596b957 2022-07-14 tracey 
 70 026ac2c4 2022-08-20 stsp static void	 sockets_sighdlr(int, short, void *);
 71 026ac2c4 2022-08-20 stsp static void	 sockets_run(struct privsep *, struct privsep_proc *, void *);
 72 026ac2c4 2022-08-20 stsp static void	 sockets_launch(void);
 73 026ac2c4 2022-08-20 stsp static void	 sockets_purge(struct gotwebd *);
 74 026ac2c4 2022-08-20 stsp static void	 sockets_accept_paused(int, short, void *);
 75 026ac2c4 2022-08-20 stsp static void	 sockets_rlimit(int);
 76 a596b957 2022-07-14 tracey 
 77 026ac2c4 2022-08-20 stsp static int	 sockets_dispatch_gotwebd(int, struct privsep_proc *,
 78 026ac2c4 2022-08-20 stsp 		    struct imsg *);
 79 026ac2c4 2022-08-20 stsp static int	 sockets_unix_socket_listen(struct privsep *, struct socket *);
 80 026ac2c4 2022-08-20 stsp static int	 sockets_create_socket(struct address *, in_port_t);
 81 026ac2c4 2022-08-20 stsp static int	 sockets_accept_reserve(int, struct sockaddr *, socklen_t *,
 82 026ac2c4 2022-08-20 stsp 		    int, volatile int *);
 83 a596b957 2022-07-14 tracey 
 84 026ac2c4 2022-08-20 stsp static struct socket *sockets_conf_new_socket_unix(struct gotwebd *,
 85 026ac2c4 2022-08-20 stsp 		    struct server *, int);
 86 026ac2c4 2022-08-20 stsp static struct socket *sockets_conf_new_socket_fcgi(struct gotwebd *,
 87 026ac2c4 2022-08-20 stsp 		    struct server *, int, struct address *);
 88 a596b957 2022-07-14 tracey 
 89 a596b957 2022-07-14 tracey int cgi_inflight = 0;
 90 a596b957 2022-07-14 tracey 
 91 a596b957 2022-07-14 tracey static struct privsep_proc procs[] = {
 92 a596b957 2022-07-14 tracey 	{ "gotwebd",	PROC_GOTWEBD,	sockets_dispatch_gotwebd  },
 93 a596b957 2022-07-14 tracey };
 94 a596b957 2022-07-14 tracey 
 95 a596b957 2022-07-14 tracey void
 96 a596b957 2022-07-14 tracey sockets(struct privsep *ps, struct privsep_proc *p)
 97 a596b957 2022-07-14 tracey {
 98 a596b957 2022-07-14 tracey 	proc_run(ps, p, procs, nitems(procs), sockets_run, NULL);
 99 a596b957 2022-07-14 tracey }
100 a596b957 2022-07-14 tracey 
101 026ac2c4 2022-08-20 stsp static void
102 a596b957 2022-07-14 tracey sockets_run(struct privsep *ps, struct privsep_proc *p, void *arg)
103 a596b957 2022-07-14 tracey {
104 a596b957 2022-07-14 tracey 	if (config_init(ps->ps_env) == -1)
105 a596b957 2022-07-14 tracey 		fatal("failed to initialize configuration");
106 a596b957 2022-07-14 tracey 
107 a596b957 2022-07-14 tracey 	p->p_shutdown = sockets_shutdown;
108 a596b957 2022-07-14 tracey 
109 a596b957 2022-07-14 tracey 	sockets_rlimit(-1);
110 a596b957 2022-07-14 tracey 
111 a596b957 2022-07-14 tracey 	signal_del(&ps->ps_evsigchld);
112 a596b957 2022-07-14 tracey 	signal_set(&ps->ps_evsigchld, SIGCHLD, sockets_sighdlr, ps);
113 a596b957 2022-07-14 tracey 	signal_add(&ps->ps_evsigchld, NULL);
114 a596b957 2022-07-14 tracey 
115 a596b957 2022-07-14 tracey #ifndef PROFILE
116 63c6b10f 2023-11-14 stsp 	if (pledge("stdio rpath inet recvfd proc exec sendfd unveil",
117 63c6b10f 2023-11-14 stsp 	    NULL) == -1)
118 a596b957 2022-07-14 tracey 		fatal("pledge");
119 a596b957 2022-07-14 tracey #endif
120 a596b957 2022-07-14 tracey }
121 a596b957 2022-07-14 tracey 
122 a596b957 2022-07-14 tracey void
123 a596b957 2022-07-14 tracey sockets_parse_sockets(struct gotwebd *env)
124 a596b957 2022-07-14 tracey {
125 a596b957 2022-07-14 tracey 	struct server *srv;
126 610dd8c9 2022-08-19 stsp 	struct address *a;
127 4fcc9f74 2022-08-16 stsp 	struct socket *new_sock = NULL;
128 610dd8c9 2022-08-19 stsp 	int sock_id = 1;
129 a596b957 2022-07-14 tracey 
130 2ad48e9a 2022-08-16 stsp 	TAILQ_FOREACH(srv, &env->servers, entry) {
131 a596b957 2022-07-14 tracey 		if (srv->unix_socket) {
132 610dd8c9 2022-08-19 stsp 			new_sock = sockets_conf_new_socket_unix(env, srv,
133 610dd8c9 2022-08-19 stsp 			    sock_id);
134 4fcc9f74 2022-08-16 stsp 			if (new_sock) {
135 610dd8c9 2022-08-19 stsp 				sock_id++;
136 4fcc9f74 2022-08-16 stsp 				TAILQ_INSERT_TAIL(&env->sockets, new_sock,
137 4fcc9f74 2022-08-16 stsp 				    entry);
138 a596b957 2022-07-14 tracey 			}
139 610dd8c9 2022-08-19 stsp 		}
140 a596b957 2022-07-14 tracey 
141 610dd8c9 2022-08-19 stsp 		if (srv->fcgi_socket) {
142 610dd8c9 2022-08-19 stsp 			if (TAILQ_EMPTY(&srv->al)) {
143 610dd8c9 2022-08-19 stsp 				fatalx("%s: server %s has no IP addresses to "
144 610dd8c9 2022-08-19 stsp 				    "listen for FCGI connections", __func__,
145 610dd8c9 2022-08-19 stsp 				    srv->name);
146 4fcc9f74 2022-08-16 stsp 			}
147 610dd8c9 2022-08-19 stsp 			TAILQ_FOREACH(a, &srv->al, entry) {
148 610dd8c9 2022-08-19 stsp 				if (a->ss.ss_family != AF_INET &&
149 610dd8c9 2022-08-19 stsp 				    a->ss.ss_family != AF_INET6)
150 610dd8c9 2022-08-19 stsp 					continue;
151 610dd8c9 2022-08-19 stsp 				new_sock = sockets_conf_new_socket_fcgi(env,
152 610dd8c9 2022-08-19 stsp 				    srv, sock_id, a);
153 610dd8c9 2022-08-19 stsp 				if (new_sock) {
154 610dd8c9 2022-08-19 stsp 					sock_id++;
155 610dd8c9 2022-08-19 stsp 					TAILQ_INSERT_TAIL(&env->sockets,
156 610dd8c9 2022-08-19 stsp 					    new_sock, entry);
157 610dd8c9 2022-08-19 stsp 				}
158 a596b957 2022-07-14 tracey 			}
159 a596b957 2022-07-14 tracey 		}
160 a596b957 2022-07-14 tracey 	}
161 a596b957 2022-07-14 tracey }
162 a596b957 2022-07-14 tracey 
163 026ac2c4 2022-08-20 stsp static struct socket *
164 610dd8c9 2022-08-19 stsp sockets_conf_new_socket_unix(struct gotwebd *env, struct server *srv, int id)
165 a596b957 2022-07-14 tracey {
166 a596b957 2022-07-14 tracey 	struct socket *sock;
167 a596b957 2022-07-14 tracey 	int n;
168 a596b957 2022-07-14 tracey 
169 a596b957 2022-07-14 tracey 	if ((sock = calloc(1, sizeof(*sock))) == NULL)
170 a596b957 2022-07-14 tracey 		fatalx("%s: calloc", __func__);
171 a596b957 2022-07-14 tracey 
172 a596b957 2022-07-14 tracey 	sock->conf.id = id;
173 a596b957 2022-07-14 tracey 	sock->fd = -1;
174 610dd8c9 2022-08-19 stsp 	sock->conf.af_type = AF_UNIX;
175 a596b957 2022-07-14 tracey 
176 610dd8c9 2022-08-19 stsp 	if (strlcpy(sock->conf.unix_socket_name,
177 610dd8c9 2022-08-19 stsp 	    srv->unix_socket_name,
178 610dd8c9 2022-08-19 stsp 	    sizeof(sock->conf.unix_socket_name)) >=
179 610dd8c9 2022-08-19 stsp 	    sizeof(sock->conf.unix_socket_name)) {
180 610dd8c9 2022-08-19 stsp 		free(sock);
181 610dd8c9 2022-08-19 stsp 		fatalx("%s: strlcpy", __func__);
182 4fcc9f74 2022-08-16 stsp 	}
183 a596b957 2022-07-14 tracey 
184 a596b957 2022-07-14 tracey 	n = snprintf(sock->conf.name, GOTWEBD_MAXTEXT, "%s_parent",
185 a596b957 2022-07-14 tracey 	    srv->name);
186 438d0cc3 2022-08-16 op 	if (n < 0 || (size_t)n >= GOTWEBD_MAXTEXT) {
187 a596b957 2022-07-14 tracey 		free(sock);
188 a596b957 2022-07-14 tracey 		fatalx("%s: snprintf", __func__);
189 a596b957 2022-07-14 tracey 	}
190 a596b957 2022-07-14 tracey 
191 a596b957 2022-07-14 tracey 	if (strlcpy(sock->conf.srv_name, srv->name,
192 a596b957 2022-07-14 tracey 	    sizeof(sock->conf.srv_name)) >= sizeof(sock->conf.srv_name)) {
193 a596b957 2022-07-14 tracey 		free(sock);
194 a596b957 2022-07-14 tracey 		fatalx("%s: strlcpy", __func__);
195 a596b957 2022-07-14 tracey 	}
196 a596b957 2022-07-14 tracey 
197 610dd8c9 2022-08-19 stsp 	return sock;
198 610dd8c9 2022-08-19 stsp }
199 4fcc9f74 2022-08-16 stsp 
200 026ac2c4 2022-08-20 stsp static struct socket *
201 610dd8c9 2022-08-19 stsp sockets_conf_new_socket_fcgi(struct gotwebd *env, struct server *srv, int id,
202 610dd8c9 2022-08-19 stsp     struct address *a)
203 610dd8c9 2022-08-19 stsp {
204 610dd8c9 2022-08-19 stsp 	struct socket *sock;
205 610dd8c9 2022-08-19 stsp 	struct address *acp;
206 610dd8c9 2022-08-19 stsp 	int n;
207 a596b957 2022-07-14 tracey 
208 610dd8c9 2022-08-19 stsp 	if ((sock = calloc(1, sizeof(*sock))) == NULL)
209 610dd8c9 2022-08-19 stsp 		fatalx("%s: calloc", __func__);
210 4fcc9f74 2022-08-16 stsp 
211 610dd8c9 2022-08-19 stsp 	sock->conf.id = id;
212 610dd8c9 2022-08-19 stsp 	sock->fd = -1;
213 610dd8c9 2022-08-19 stsp 	sock->conf.af_type = a->ss.ss_family;
214 610dd8c9 2022-08-19 stsp 
215 67d8de2a 2022-08-29 stsp 	sock->conf.fcgi_socket_port = a->port;
216 610dd8c9 2022-08-19 stsp 
217 610dd8c9 2022-08-19 stsp 	n = snprintf(sock->conf.name, GOTWEBD_MAXTEXT, "%s_parent",
218 610dd8c9 2022-08-19 stsp 	    srv->name);
219 610dd8c9 2022-08-19 stsp 	if (n < 0 || (size_t)n >= GOTWEBD_MAXTEXT) {
220 4fcc9f74 2022-08-16 stsp 		free(sock);
221 610dd8c9 2022-08-19 stsp 		fatalx("%s: snprintf", __func__);
222 4fcc9f74 2022-08-16 stsp 	}
223 4fcc9f74 2022-08-16 stsp 
224 610dd8c9 2022-08-19 stsp 	if (strlcpy(sock->conf.srv_name, srv->name,
225 610dd8c9 2022-08-19 stsp 	    sizeof(sock->conf.srv_name)) >= sizeof(sock->conf.srv_name)) {
226 610dd8c9 2022-08-19 stsp 		free(sock);
227 610dd8c9 2022-08-19 stsp 		fatalx("%s: strlcpy", __func__);
228 610dd8c9 2022-08-19 stsp 	}
229 610dd8c9 2022-08-19 stsp 
230 610dd8c9 2022-08-19 stsp 	acp = &sock->conf.addr;
231 610dd8c9 2022-08-19 stsp 
232 610dd8c9 2022-08-19 stsp 	memcpy(&acp->ss, &a->ss, sizeof(acp->ss));
233 610dd8c9 2022-08-19 stsp 	acp->ipproto = a->ipproto;
234 610dd8c9 2022-08-19 stsp 	acp->port = a->port;
235 4448825a 2023-06-16 op 	if (*a->ifname != '\0') {
236 610dd8c9 2022-08-19 stsp 		if (strlcpy(acp->ifname, a->ifname,
237 610dd8c9 2022-08-19 stsp 		    sizeof(acp->ifname)) >= sizeof(acp->ifname)) {
238 610dd8c9 2022-08-19 stsp 			fatalx("%s: interface name truncated",
239 610dd8c9 2022-08-19 stsp 			    __func__);
240 610dd8c9 2022-08-19 stsp 		}
241 610dd8c9 2022-08-19 stsp 	}
242 610dd8c9 2022-08-19 stsp 
243 a596b957 2022-07-14 tracey 	return (sock);
244 a596b957 2022-07-14 tracey }
245 a596b957 2022-07-14 tracey 
246 026ac2c4 2022-08-20 stsp static void
247 a596b957 2022-07-14 tracey sockets_launch(void)
248 a596b957 2022-07-14 tracey {
249 a596b957 2022-07-14 tracey 	struct socket *sock;
250 6fe3b58a 2023-11-14 stsp 	struct server *srv;
251 6fe3b58a 2023-11-14 stsp 	const struct got_error *error;
252 a596b957 2022-07-14 tracey 
253 2ad48e9a 2022-08-16 stsp 	TAILQ_FOREACH(sock, &gotwebd_env->sockets, entry) {
254 a596b957 2022-07-14 tracey 		log_debug("%s: configuring socket %d (%d)", __func__,
255 a596b957 2022-07-14 tracey 		    sock->conf.id, sock->fd);
256 a596b957 2022-07-14 tracey 
257 a596b957 2022-07-14 tracey 		event_set(&sock->ev, sock->fd, EV_READ | EV_PERSIST,
258 a596b957 2022-07-14 tracey 		    sockets_socket_accept, sock);
259 a596b957 2022-07-14 tracey 
260 a596b957 2022-07-14 tracey 		if (event_add(&sock->ev, NULL))
261 a596b957 2022-07-14 tracey 			fatalx("event add sock");
262 a596b957 2022-07-14 tracey 
263 a596b957 2022-07-14 tracey 		evtimer_set(&sock->pause, sockets_accept_paused, sock);
264 a596b957 2022-07-14 tracey 
265 a596b957 2022-07-14 tracey 		log_debug("%s: running socket listener %d", __func__,
266 a596b957 2022-07-14 tracey 		    sock->conf.id);
267 a596b957 2022-07-14 tracey 	}
268 6fe3b58a 2023-11-14 stsp 
269 6fe3b58a 2023-11-14 stsp 	TAILQ_FOREACH(srv, &gotwebd_env->servers, entry) {
270 6fe3b58a 2023-11-14 stsp 		if (unveil(srv->repos_path, "r") == -1)
271 6fe3b58a 2023-11-14 stsp 			fatal("unveil %s", srv->repos_path);
272 6fe3b58a 2023-11-14 stsp 	}
273 6fe3b58a 2023-11-14 stsp 
274 6fe3b58a 2023-11-14 stsp 	error = got_privsep_unveil_exec_helpers();
275 6fe3b58a 2023-11-14 stsp 	if (error)
276 6fe3b58a 2023-11-14 stsp 		fatal("%s", error->msg);
277 6fe3b58a 2023-11-14 stsp 
278 6fe3b58a 2023-11-14 stsp 	if (unveil(NULL, NULL) == -1)
279 6fe3b58a 2023-11-14 stsp 		fatal("unveil");
280 a596b957 2022-07-14 tracey }
281 a596b957 2022-07-14 tracey 
282 026ac2c4 2022-08-20 stsp static void
283 a596b957 2022-07-14 tracey sockets_purge(struct gotwebd *env)
284 a596b957 2022-07-14 tracey {
285 a596b957 2022-07-14 tracey 	struct socket *sock, *tsock;
286 a596b957 2022-07-14 tracey 
287 a596b957 2022-07-14 tracey 	/* shutdown and remove sockets */
288 2ad48e9a 2022-08-16 stsp 	TAILQ_FOREACH_SAFE(sock, &env->sockets, entry, tsock) {
289 a596b957 2022-07-14 tracey 		if (event_initialized(&sock->ev))
290 a596b957 2022-07-14 tracey 			event_del(&sock->ev);
291 a596b957 2022-07-14 tracey 		if (evtimer_initialized(&sock->evt))
292 a596b957 2022-07-14 tracey 			evtimer_del(&sock->evt);
293 a596b957 2022-07-14 tracey 		if (evtimer_initialized(&sock->pause))
294 a596b957 2022-07-14 tracey 			evtimer_del(&sock->pause);
295 a596b957 2022-07-14 tracey 		if (sock->fd != -1)
296 a596b957 2022-07-14 tracey 			close(sock->fd);
297 2ad48e9a 2022-08-16 stsp 		TAILQ_REMOVE(&env->sockets, sock, entry);
298 a596b957 2022-07-14 tracey 	}
299 a596b957 2022-07-14 tracey }
300 a596b957 2022-07-14 tracey 
301 026ac2c4 2022-08-20 stsp static int
302 a596b957 2022-07-14 tracey sockets_dispatch_gotwebd(int fd, struct privsep_proc *p, struct imsg *imsg)
303 a596b957 2022-07-14 tracey {
304 a596b957 2022-07-14 tracey 	struct privsep *ps = p->p_ps;
305 a596b957 2022-07-14 tracey 	int res = 0, cmd = 0, verbose;
306 a596b957 2022-07-14 tracey 
307 a596b957 2022-07-14 tracey 	switch (imsg->hdr.type) {
308 a596b957 2022-07-14 tracey 	case IMSG_CFG_SRV:
309 a596b957 2022-07-14 tracey 		config_getserver(gotwebd_env, imsg);
310 a596b957 2022-07-14 tracey 		break;
311 a596b957 2022-07-14 tracey 	case IMSG_CFG_SOCK:
312 a596b957 2022-07-14 tracey 		config_getsock(gotwebd_env, imsg);
313 a596b957 2022-07-14 tracey 		break;
314 a596b957 2022-07-14 tracey 	case IMSG_CFG_FD:
315 a596b957 2022-07-14 tracey 		config_getfd(gotwebd_env, imsg);
316 a596b957 2022-07-14 tracey 		break;
317 a596b957 2022-07-14 tracey 	case IMSG_CFG_DONE:
318 a596b957 2022-07-14 tracey 		config_getcfg(gotwebd_env, imsg);
319 a596b957 2022-07-14 tracey 		break;
320 a596b957 2022-07-14 tracey 	case IMSG_CTL_START:
321 a596b957 2022-07-14 tracey 		sockets_launch();
322 a596b957 2022-07-14 tracey 		break;
323 a596b957 2022-07-14 tracey 	case IMSG_CTL_VERBOSE:
324 a596b957 2022-07-14 tracey 		IMSG_SIZE_CHECK(imsg, &verbose);
325 a596b957 2022-07-14 tracey 		memcpy(&verbose, imsg->data, sizeof(verbose));
326 a596b957 2022-07-14 tracey 		log_setverbose(verbose);
327 a596b957 2022-07-14 tracey 		break;
328 a596b957 2022-07-14 tracey 	default:
329 a596b957 2022-07-14 tracey 		return -1;
330 a596b957 2022-07-14 tracey 	}
331 a596b957 2022-07-14 tracey 
332 a596b957 2022-07-14 tracey 	switch (cmd) {
333 a596b957 2022-07-14 tracey 	case 0:
334 a596b957 2022-07-14 tracey 		break;
335 a596b957 2022-07-14 tracey 	default:
336 a596b957 2022-07-14 tracey 		if (proc_compose_imsg(ps, PROC_GOTWEBD, -1, cmd,
337 a596b957 2022-07-14 tracey 		    imsg->hdr.peerid, -1, &res, sizeof(res)) == -1)
338 a596b957 2022-07-14 tracey 			return -1;
339 a596b957 2022-07-14 tracey 		break;
340 a596b957 2022-07-14 tracey 	}
341 a596b957 2022-07-14 tracey 
342 a596b957 2022-07-14 tracey 	return 0;
343 a596b957 2022-07-14 tracey }
344 a596b957 2022-07-14 tracey 
345 026ac2c4 2022-08-20 stsp static void
346 a596b957 2022-07-14 tracey sockets_sighdlr(int sig, short event, void *arg)
347 a596b957 2022-07-14 tracey {
348 a596b957 2022-07-14 tracey 	switch (sig) {
349 a596b957 2022-07-14 tracey 	case SIGHUP:
350 a596b957 2022-07-14 tracey 		log_info("%s: ignoring SIGHUP", __func__);
351 a596b957 2022-07-14 tracey 		break;
352 a596b957 2022-07-14 tracey 	case SIGPIPE:
353 a596b957 2022-07-14 tracey 		log_info("%s: ignoring SIGPIPE", __func__);
354 a596b957 2022-07-14 tracey 		break;
355 a596b957 2022-07-14 tracey 	case SIGUSR1:
356 a596b957 2022-07-14 tracey 		log_info("%s: ignoring SIGUSR1", __func__);
357 a596b957 2022-07-14 tracey 		break;
358 a596b957 2022-07-14 tracey 	case SIGCHLD:
359 a596b957 2022-07-14 tracey 		break;
360 a596b957 2022-07-14 tracey 	default:
361 a596b957 2022-07-14 tracey 		log_info("SIGNAL: %d", sig);
362 a596b957 2022-07-14 tracey 		fatalx("unexpected signal");
363 a596b957 2022-07-14 tracey 	}
364 a596b957 2022-07-14 tracey }
365 a596b957 2022-07-14 tracey 
366 a596b957 2022-07-14 tracey void
367 a596b957 2022-07-14 tracey sockets_shutdown(void)
368 a596b957 2022-07-14 tracey {
369 a596b957 2022-07-14 tracey 	struct server *srv, *tsrv;
370 a596b957 2022-07-14 tracey 	struct socket *sock, *tsock;
371 b5c757f5 2022-09-01 stsp 	int i;
372 a596b957 2022-07-14 tracey 
373 a596b957 2022-07-14 tracey 	sockets_purge(gotwebd_env);
374 a596b957 2022-07-14 tracey 
375 a596b957 2022-07-14 tracey 	/* clean sockets */
376 2ad48e9a 2022-08-16 stsp 	TAILQ_FOREACH_SAFE(sock, &gotwebd_env->sockets, entry, tsock) {
377 2ad48e9a 2022-08-16 stsp 		TAILQ_REMOVE(&gotwebd_env->sockets, sock, entry);
378 a596b957 2022-07-14 tracey 		close(sock->fd);
379 a596b957 2022-07-14 tracey 		free(sock);
380 a596b957 2022-07-14 tracey 	}
381 a596b957 2022-07-14 tracey 
382 a596b957 2022-07-14 tracey 	/* clean servers */
383 b5c757f5 2022-09-01 stsp 	TAILQ_FOREACH_SAFE(srv, &gotwebd_env->servers, entry, tsrv) {
384 b5c757f5 2022-09-01 stsp 		for (i = 0; i < srv->ncached_repos; i++)
385 b5c757f5 2022-09-01 stsp 			got_repo_close(srv->cached_repos[i].repo);
386 a596b957 2022-07-14 tracey 		free(srv);
387 b5c757f5 2022-09-01 stsp 	}
388 a596b957 2022-07-14 tracey 
389 a596b957 2022-07-14 tracey 	free(gotwebd_env);
390 a596b957 2022-07-14 tracey }
391 a596b957 2022-07-14 tracey 
392 a596b957 2022-07-14 tracey int
393 a596b957 2022-07-14 tracey sockets_privinit(struct gotwebd *env, struct socket *sock)
394 a596b957 2022-07-14 tracey {
395 a596b957 2022-07-14 tracey 	struct privsep *ps = env->gotwebd_ps;
396 a596b957 2022-07-14 tracey 
397 4fcc9f74 2022-08-16 stsp 	if (sock->conf.af_type == AF_UNIX) {
398 a596b957 2022-07-14 tracey 		log_debug("%s: initializing unix socket %s", __func__,
399 a596b957 2022-07-14 tracey 		    sock->conf.unix_socket_name);
400 a596b957 2022-07-14 tracey 		sock->fd = sockets_unix_socket_listen(ps, sock);
401 a596b957 2022-07-14 tracey 		if (sock->fd == -1) {
402 a596b957 2022-07-14 tracey 			log_warnx("%s: create unix socket failed", __func__);
403 a596b957 2022-07-14 tracey 			return -1;
404 a596b957 2022-07-14 tracey 		}
405 a596b957 2022-07-14 tracey 	}
406 a596b957 2022-07-14 tracey 
407 4fcc9f74 2022-08-16 stsp 	if (sock->conf.af_type == AF_INET || sock->conf.af_type == AF_INET6) {
408 4fcc9f74 2022-08-16 stsp 		log_debug("%s: initializing %s FCGI socket on port %d for %s",
409 4fcc9f74 2022-08-16 stsp 		    __func__, sock->conf.af_type == AF_INET ? "inet" : "inet6",
410 4fcc9f74 2022-08-16 stsp 		    sock->conf.fcgi_socket_port, sock->conf.name);
411 610dd8c9 2022-08-19 stsp 		sock->fd = sockets_create_socket(&sock->conf.addr,
412 a596b957 2022-07-14 tracey 		    sock->conf.fcgi_socket_port);
413 a596b957 2022-07-14 tracey 		if (sock->fd == -1) {
414 610dd8c9 2022-08-19 stsp 			log_warnx("%s: create FCGI socket failed", __func__);
415 a596b957 2022-07-14 tracey 			return -1;
416 a596b957 2022-07-14 tracey 		}
417 a596b957 2022-07-14 tracey 	}
418 a596b957 2022-07-14 tracey 
419 a596b957 2022-07-14 tracey 	return 0;
420 a596b957 2022-07-14 tracey }
421 a596b957 2022-07-14 tracey 
422 026ac2c4 2022-08-20 stsp static int
423 a596b957 2022-07-14 tracey sockets_unix_socket_listen(struct privsep *ps, struct socket *sock)
424 a596b957 2022-07-14 tracey {
425 a596b957 2022-07-14 tracey 	struct gotwebd *env = ps->ps_env;
426 a596b957 2022-07-14 tracey 	struct sockaddr_un sun;
427 a596b957 2022-07-14 tracey 	struct socket *tsock;
428 a596b957 2022-07-14 tracey 	int u_fd = -1;
429 a596b957 2022-07-14 tracey 	mode_t old_umask, mode;
430 a596b957 2022-07-14 tracey 
431 2ad48e9a 2022-08-16 stsp 	TAILQ_FOREACH(tsock, &env->sockets, entry) {
432 a596b957 2022-07-14 tracey 		if (strcmp(tsock->conf.unix_socket_name,
433 a596b957 2022-07-14 tracey 		    sock->conf.unix_socket_name) == 0 &&
434 a596b957 2022-07-14 tracey 		    tsock->fd != -1)
435 a596b957 2022-07-14 tracey 			return (tsock->fd);
436 a596b957 2022-07-14 tracey 	}
437 a596b957 2022-07-14 tracey 
438 a596b957 2022-07-14 tracey 	u_fd = socket(AF_UNIX, SOCK_STREAM | SOCK_NONBLOCK| SOCK_CLOEXEC, 0);
439 a596b957 2022-07-14 tracey 	if (u_fd == -1) {
440 a596b957 2022-07-14 tracey 		log_warn("%s: socket", __func__);
441 a596b957 2022-07-14 tracey 		return -1;
442 a596b957 2022-07-14 tracey 	}
443 a596b957 2022-07-14 tracey 
444 a596b957 2022-07-14 tracey 	sun.sun_family = AF_UNIX;
445 a596b957 2022-07-14 tracey 	if (strlcpy(sun.sun_path, sock->conf.unix_socket_name,
446 a596b957 2022-07-14 tracey 	    sizeof(sun.sun_path)) >= sizeof(sun.sun_path)) {
447 a596b957 2022-07-14 tracey 		log_warn("%s: %s name too long", __func__,
448 a596b957 2022-07-14 tracey 		    sock->conf.unix_socket_name);
449 a596b957 2022-07-14 tracey 		close(u_fd);
450 a596b957 2022-07-14 tracey 		return -1;
451 a596b957 2022-07-14 tracey 	}
452 a596b957 2022-07-14 tracey 
453 a596b957 2022-07-14 tracey 	if (unlink(sock->conf.unix_socket_name) == -1) {
454 a596b957 2022-07-14 tracey 		if (errno != ENOENT) {
455 a596b957 2022-07-14 tracey 			log_warn("%s: unlink %s", __func__,
456 a596b957 2022-07-14 tracey 			    sock->conf.unix_socket_name);
457 a596b957 2022-07-14 tracey 			close(u_fd);
458 a596b957 2022-07-14 tracey 			return -1;
459 a596b957 2022-07-14 tracey 		}
460 a596b957 2022-07-14 tracey 	}
461 a596b957 2022-07-14 tracey 
462 a596b957 2022-07-14 tracey 	old_umask = umask(S_IXUSR|S_IXGRP|S_IWOTH|S_IROTH|S_IXOTH);
463 a596b957 2022-07-14 tracey 	mode = S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP;
464 a596b957 2022-07-14 tracey 
465 a596b957 2022-07-14 tracey 	if (bind(u_fd, (struct sockaddr *)&sun, sizeof(sun)) == -1) {
466 a596b957 2022-07-14 tracey 		log_warn("%s: bind: %s", __func__, sock->conf.unix_socket_name);
467 a596b957 2022-07-14 tracey 		close(u_fd);
468 a596b957 2022-07-14 tracey 		(void)umask(old_umask);
469 a596b957 2022-07-14 tracey 		return -1;
470 a596b957 2022-07-14 tracey 	}
471 a596b957 2022-07-14 tracey 
472 a596b957 2022-07-14 tracey 	(void)umask(old_umask);
473 a596b957 2022-07-14 tracey 
474 a596b957 2022-07-14 tracey 	if (chmod(sock->conf.unix_socket_name, mode) == -1) {
475 a596b957 2022-07-14 tracey 		log_warn("%s: chmod", __func__);
476 a596b957 2022-07-14 tracey 		close(u_fd);
477 a596b957 2022-07-14 tracey 		(void)unlink(sock->conf.unix_socket_name);
478 a596b957 2022-07-14 tracey 		return -1;
479 a596b957 2022-07-14 tracey 	}
480 a596b957 2022-07-14 tracey 
481 a596b957 2022-07-14 tracey 	if (chown(sock->conf.unix_socket_name, ps->ps_pw->pw_uid,
482 a596b957 2022-07-14 tracey 	    ps->ps_pw->pw_gid) == -1) {
483 a596b957 2022-07-14 tracey 		log_warn("%s: chown", __func__);
484 a596b957 2022-07-14 tracey 		close(u_fd);
485 a596b957 2022-07-14 tracey 		(void)unlink(sock->conf.unix_socket_name);
486 a596b957 2022-07-14 tracey 		return -1;
487 a596b957 2022-07-14 tracey 	}
488 a596b957 2022-07-14 tracey 
489 a596b957 2022-07-14 tracey 	if (listen(u_fd, SOCKS_BACKLOG) == -1) {
490 a596b957 2022-07-14 tracey 		log_warn("%s: listen", __func__);
491 a596b957 2022-07-14 tracey 		return -1;
492 a596b957 2022-07-14 tracey 	}
493 a596b957 2022-07-14 tracey 
494 a596b957 2022-07-14 tracey 	return u_fd;
495 a596b957 2022-07-14 tracey }
496 a596b957 2022-07-14 tracey 
497 026ac2c4 2022-08-20 stsp static int
498 610dd8c9 2022-08-19 stsp sockets_create_socket(struct address *a, in_port_t port)
499 a596b957 2022-07-14 tracey {
500 a596b957 2022-07-14 tracey 	struct addrinfo hints;
501 a596b957 2022-07-14 tracey 	int fd = -1, o_val = 1, flags;
502 a596b957 2022-07-14 tracey 
503 a596b957 2022-07-14 tracey 	memset(&hints, 0, sizeof(hints));
504 a596b957 2022-07-14 tracey 	hints.ai_family = AF_UNSPEC;
505 a596b957 2022-07-14 tracey 	hints.ai_socktype = SOCK_STREAM;
506 a596b957 2022-07-14 tracey 	hints.ai_flags |= AI_PASSIVE;
507 a596b957 2022-07-14 tracey 
508 610dd8c9 2022-08-19 stsp 	switch (a->ss.ss_family) {
509 610dd8c9 2022-08-19 stsp 	case AF_INET:
510 859aa9f4 2022-08-19 stsp 		((struct sockaddr_in *)(&a->ss))->sin_port = htons(port);
511 610dd8c9 2022-08-19 stsp 		break;
512 610dd8c9 2022-08-19 stsp 	case AF_INET6:
513 859aa9f4 2022-08-19 stsp 		((struct sockaddr_in6 *)(&a->ss))->sin6_port = htons(port);
514 610dd8c9 2022-08-19 stsp 		break;
515 610dd8c9 2022-08-19 stsp 	default:
516 610dd8c9 2022-08-19 stsp 		log_warnx("%s: unknown address family", __func__);
517 610dd8c9 2022-08-19 stsp 		return -1;
518 610dd8c9 2022-08-19 stsp 	}
519 a596b957 2022-07-14 tracey 
520 610dd8c9 2022-08-19 stsp 	fd = socket(a->ss.ss_family, hints.ai_socktype, a->ipproto);
521 610dd8c9 2022-08-19 stsp 	if (fd == -1)
522 610dd8c9 2022-08-19 stsp 		return -1;
523 a596b957 2022-07-14 tracey 
524 610dd8c9 2022-08-19 stsp 	log_debug("%s: opened socket (%d) for %s", __func__,
525 610dd8c9 2022-08-19 stsp 	    fd, a->ifname);
526 a596b957 2022-07-14 tracey 
527 610dd8c9 2022-08-19 stsp 	if (setsockopt(fd, SOL_SOCKET, SO_REUSEPORT, &o_val,
528 610dd8c9 2022-08-19 stsp 	    sizeof(int)) == -1) {
529 610dd8c9 2022-08-19 stsp 		log_warn("%s: setsockopt error", __func__);
530 610dd8c9 2022-08-19 stsp 		close(fd);
531 610dd8c9 2022-08-19 stsp 		return -1;
532 610dd8c9 2022-08-19 stsp 	}
533 a596b957 2022-07-14 tracey 
534 610dd8c9 2022-08-19 stsp 	/* non-blocking */
535 610dd8c9 2022-08-19 stsp 	flags = fcntl(fd, F_GETFL);
536 610dd8c9 2022-08-19 stsp 	flags |= O_NONBLOCK;
537 610dd8c9 2022-08-19 stsp 	if (fcntl(fd, F_SETFL, flags) == -1) {
538 610dd8c9 2022-08-19 stsp 		log_info("%s: could not enable non-blocking I/O", __func__);
539 610dd8c9 2022-08-19 stsp 		close(fd);
540 610dd8c9 2022-08-19 stsp 		return -1;
541 610dd8c9 2022-08-19 stsp 	}
542 a596b957 2022-07-14 tracey 
543 610dd8c9 2022-08-19 stsp 	if (bind(fd, (struct sockaddr *)&a->ss, a->ss.ss_len) == -1) {
544 610dd8c9 2022-08-19 stsp 		close(fd);
545 610dd8c9 2022-08-19 stsp 		log_info("%s: can't bind to port %d", __func__,
546 610dd8c9 2022-08-19 stsp 		    ntohs(port));
547 610dd8c9 2022-08-19 stsp 		return -1;
548 a596b957 2022-07-14 tracey 	}
549 a596b957 2022-07-14 tracey 
550 610dd8c9 2022-08-19 stsp 	if (listen(fd, SOMAXCONN) == -1) {
551 610dd8c9 2022-08-19 stsp 		log_warn("%s, unable to listen on socket", __func__);
552 610dd8c9 2022-08-19 stsp 		close(fd);
553 610dd8c9 2022-08-19 stsp 		return -1;
554 610dd8c9 2022-08-19 stsp 	}
555 610dd8c9 2022-08-19 stsp 
556 a596b957 2022-07-14 tracey 	return (fd);
557 a596b957 2022-07-14 tracey }
558 a596b957 2022-07-14 tracey 
559 026ac2c4 2022-08-20 stsp static int
560 a596b957 2022-07-14 tracey sockets_accept_reserve(int sockfd, struct sockaddr *addr, socklen_t *addrlen,
561 a596b957 2022-07-14 tracey     int reserve, volatile int *counter)
562 a596b957 2022-07-14 tracey {
563 a596b957 2022-07-14 tracey 	int ret;
564 a596b957 2022-07-14 tracey 
565 a596b957 2022-07-14 tracey 	if (getdtablecount() + reserve +
566 a596b957 2022-07-14 tracey 	    ((*counter + 1) * FD_NEEDED) >= getdtablesize()) {
567 a596b957 2022-07-14 tracey 		log_debug("inflight fds exceeded");
568 a596b957 2022-07-14 tracey 		errno = EMFILE;
569 a596b957 2022-07-14 tracey 		return -1;
570 a596b957 2022-07-14 tracey 	}
571 a596b957 2022-07-14 tracey 
572 a596b957 2022-07-14 tracey 	if ((ret = accept4(sockfd, addr, addrlen,
573 a596b957 2022-07-14 tracey 	    SOCK_NONBLOCK | SOCK_CLOEXEC)) > -1) {
574 a596b957 2022-07-14 tracey 		(*counter)++;
575 a596b957 2022-07-14 tracey 		log_debug("inflight incremented, now %d", *counter);
576 a596b957 2022-07-14 tracey 	}
577 a596b957 2022-07-14 tracey 
578 a596b957 2022-07-14 tracey 	return ret;
579 a596b957 2022-07-14 tracey }
580 a596b957 2022-07-14 tracey 
581 026ac2c4 2022-08-20 stsp static void
582 a596b957 2022-07-14 tracey sockets_accept_paused(int fd, short events, void *arg)
583 a596b957 2022-07-14 tracey {
584 a596b957 2022-07-14 tracey 	struct socket *sock = (struct socket *)arg;
585 a596b957 2022-07-14 tracey 
586 a596b957 2022-07-14 tracey 	event_add(&sock->ev, NULL);
587 a596b957 2022-07-14 tracey }
588 a596b957 2022-07-14 tracey 
589 a596b957 2022-07-14 tracey void
590 a596b957 2022-07-14 tracey sockets_socket_accept(int fd, short event, void *arg)
591 a596b957 2022-07-14 tracey {
592 a596b957 2022-07-14 tracey 	struct socket *sock = (struct socket *)arg;
593 a596b957 2022-07-14 tracey 	struct sockaddr_storage ss;
594 a596b957 2022-07-14 tracey 	struct timeval backoff;
595 a596b957 2022-07-14 tracey 	struct request *c = NULL;
596 a596b957 2022-07-14 tracey 	socklen_t len;
597 a596b957 2022-07-14 tracey 	int s;
598 a596b957 2022-07-14 tracey 
599 a596b957 2022-07-14 tracey 	backoff.tv_sec = 1;
600 a596b957 2022-07-14 tracey 	backoff.tv_usec = 0;
601 a596b957 2022-07-14 tracey 
602 a596b957 2022-07-14 tracey 	event_add(&sock->ev, NULL);
603 a596b957 2022-07-14 tracey 	if (event & EV_TIMEOUT)
604 a596b957 2022-07-14 tracey 		return;
605 a596b957 2022-07-14 tracey 
606 a596b957 2022-07-14 tracey 	len = sizeof(ss);
607 a596b957 2022-07-14 tracey 
608 a596b957 2022-07-14 tracey 	s = sockets_accept_reserve(fd, (struct sockaddr *)&ss, &len,
609 a596b957 2022-07-14 tracey 	    FD_RESERVE, &cgi_inflight);
610 a596b957 2022-07-14 tracey 
611 a596b957 2022-07-14 tracey 	if (s == -1) {
612 a596b957 2022-07-14 tracey 		switch (errno) {
613 a596b957 2022-07-14 tracey 		case EINTR:
614 a596b957 2022-07-14 tracey 		case EWOULDBLOCK:
615 a596b957 2022-07-14 tracey 		case ECONNABORTED:
616 a596b957 2022-07-14 tracey 			return;
617 a596b957 2022-07-14 tracey 		case EMFILE:
618 a596b957 2022-07-14 tracey 		case ENFILE:
619 a596b957 2022-07-14 tracey 			event_del(&sock->ev);
620 a596b957 2022-07-14 tracey 			evtimer_add(&sock->pause, &backoff);
621 a596b957 2022-07-14 tracey 			return;
622 a596b957 2022-07-14 tracey 		default:
623 a596b957 2022-07-14 tracey 			log_warn("%s: accept", __func__);
624 a596b957 2022-07-14 tracey 		}
625 a596b957 2022-07-14 tracey 	}
626 a596b957 2022-07-14 tracey 
627 a596b957 2022-07-14 tracey 	if (client_cnt > GOTWEBD_MAXCLIENTS)
628 a596b957 2022-07-14 tracey 		goto err;
629 a596b957 2022-07-14 tracey 
630 a596b957 2022-07-14 tracey 	c = calloc(1, sizeof(struct request));
631 a596b957 2022-07-14 tracey 	if (c == NULL) {
632 ed619ca0 2022-12-14 op 		log_warn("%s", __func__);
633 ed619ca0 2022-12-14 op 		close(s);
634 ed619ca0 2022-12-14 op 		cgi_inflight--;
635 ed619ca0 2022-12-14 op 		return;
636 ed619ca0 2022-12-14 op 	}
637 ed619ca0 2022-12-14 op 
638 62eab86e 2023-09-13 op 	c->tp = template(c, &fcgi_write, c->outbuf, sizeof(c->outbuf));
639 ed619ca0 2022-12-14 op 	if (c->tp == NULL) {
640 a596b957 2022-07-14 tracey 		log_warn("%s", __func__);
641 a596b957 2022-07-14 tracey 		close(s);
642 a596b957 2022-07-14 tracey 		cgi_inflight--;
643 ed619ca0 2022-12-14 op 		free(c);
644 a596b957 2022-07-14 tracey 		return;
645 a596b957 2022-07-14 tracey 	}
646 a596b957 2022-07-14 tracey 
647 a596b957 2022-07-14 tracey 	c->fd = s;
648 a596b957 2022-07-14 tracey 	c->sock = sock;
649 a596b957 2022-07-14 tracey 	memcpy(c->priv_fd, sock->priv_fd, sizeof(c->priv_fd));
650 a596b957 2022-07-14 tracey 	c->buf_pos = 0;
651 a596b957 2022-07-14 tracey 	c->buf_len = 0;
652 a596b957 2022-07-14 tracey 	c->request_started = 0;
653 a596b957 2022-07-14 tracey 	c->sock->client_status = CLIENT_CONNECT;
654 a596b957 2022-07-14 tracey 
655 5add7f42 2023-03-10 op 	event_set(&c->ev, s, EV_READ|EV_PERSIST, fcgi_request, c);
656 a596b957 2022-07-14 tracey 	event_add(&c->ev, NULL);
657 a596b957 2022-07-14 tracey 
658 a596b957 2022-07-14 tracey 	evtimer_set(&c->tmo, fcgi_timeout, c);
659 a596b957 2022-07-14 tracey 	evtimer_add(&c->tmo, &timeout);
660 a596b957 2022-07-14 tracey 
661 a596b957 2022-07-14 tracey 	client_cnt++;
662 a596b957 2022-07-14 tracey 
663 a596b957 2022-07-14 tracey 	return;
664 a596b957 2022-07-14 tracey err:
665 a596b957 2022-07-14 tracey 	cgi_inflight--;
666 a596b957 2022-07-14 tracey 	close(s);
667 a596b957 2022-07-14 tracey 	if (c != NULL)
668 a596b957 2022-07-14 tracey 		free(c);
669 a596b957 2022-07-14 tracey }
670 a596b957 2022-07-14 tracey 
671 026ac2c4 2022-08-20 stsp static void
672 a596b957 2022-07-14 tracey sockets_rlimit(int maxfd)
673 a596b957 2022-07-14 tracey {
674 a596b957 2022-07-14 tracey 	struct rlimit rl;
675 a596b957 2022-07-14 tracey 
676 a596b957 2022-07-14 tracey 	if (getrlimit(RLIMIT_NOFILE, &rl) == -1)
677 a596b957 2022-07-14 tracey 		fatal("%s: failed to get resource limit", __func__);
678 d6267a62 2022-07-17 naddy 	log_debug("%s: max open files %llu", __func__,
679 d6267a62 2022-07-17 naddy 	    (unsigned long long)rl.rlim_max);
680 a596b957 2022-07-14 tracey 
681 a596b957 2022-07-14 tracey 	/*
682 a596b957 2022-07-14 tracey 	 * Allow the maximum number of open file descriptors for this
683 a596b957 2022-07-14 tracey 	 * login class (which should be the class "daemon" by default).
684 a596b957 2022-07-14 tracey 	 */
685 a596b957 2022-07-14 tracey 	if (maxfd == -1)
686 a596b957 2022-07-14 tracey 		rl.rlim_cur = rl.rlim_max;
687 a596b957 2022-07-14 tracey 	else
688 a596b957 2022-07-14 tracey 		rl.rlim_cur = MAXIMUM(rl.rlim_max, (rlim_t)maxfd);
689 a596b957 2022-07-14 tracey 	if (setrlimit(RLIMIT_NOFILE, &rl) == -1)
690 a596b957 2022-07-14 tracey 		fatal("%s: failed to set resource limit", __func__);
691 d6267a62 2022-07-17 naddy }