2 b0a6bcf7 2022-09-13 op * Copyright (c) 2022 Omar Polo <op@omarpolo.com>
3 b0a6bcf7 2022-09-13 op * Copyright (c) 2011 - 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/socket.h>
21 b0a6bcf7 2022-09-13 op #include <sys/un.h>
22 b0a6bcf7 2022-09-13 op #include <sys/tree.h>
23 b0a6bcf7 2022-09-13 op #include <sys/time.h>
24 b0a6bcf7 2022-09-13 op #include <sys/uio.h>
26 b0a6bcf7 2022-09-13 op #include <sys/stat.h> /* umask */
27 b0a6bcf7 2022-09-13 op #include <sys/un.h> /* sockaddr_un */
29 b0a6bcf7 2022-09-13 op #include <errno.h>
30 b0a6bcf7 2022-09-13 op #include <event.h>
31 b0a6bcf7 2022-09-13 op #include <limits.h>
32 b0a6bcf7 2022-09-13 op #include <pwd.h>
33 b0a6bcf7 2022-09-13 op #include <unistd.h>
34 b0a6bcf7 2022-09-13 op #include <stdlib.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>
39 b0a6bcf7 2022-09-13 op #include "proc.h"
40 b0a6bcf7 2022-09-13 op #include "log.h"
41 b0a6bcf7 2022-09-13 op #include "xmalloc.h"
43 b0a6bcf7 2022-09-13 op #include "galileo.h"
46 b0a6bcf7 2022-09-13 op config_init(struct galileo *env)
48 b0a6bcf7 2022-09-13 op /* Global configuration */
49 b0a6bcf7 2022-09-13 op if (privsep_process == PROC_PARENT)
50 b0a6bcf7 2022-09-13 op env->sc_prefork = PROXY_NUMPROC;
52 b0a6bcf7 2022-09-13 op /* Other configuration. */
53 afb86b2c 2022-09-23 op TAILQ_INIT(&env->sc_proxies);
55 b0a6bcf7 2022-09-13 op env->sc_sock_fd = -1;
61 b0a6bcf7 2022-09-13 op config_purge(struct galileo *env)
63 afb86b2c 2022-09-23 op struct proxy *p;
65 afb86b2c 2022-09-23 op while ((p = TAILQ_FIRST(&env->sc_proxies)) != NULL) {
66 afb86b2c 2022-09-23 op TAILQ_REMOVE(&env->sc_proxies, p, pr_entry);
67 afb86b2c 2022-09-23 op proxy_purge(p);
72 afb86b2c 2022-09-23 op config_setproxy(struct galileo *env, struct proxy *p)
74 b0a6bcf7 2022-09-13 op struct privsep *ps = env->sc_ps;
76 afb86b2c 2022-09-23 op if (proc_compose(ps, PROC_PROXY, IMSG_CFG_SRV, p, sizeof(*p)) == -1)
77 b0a6bcf7 2022-09-13 op fatal("proc_compose");
82 afb86b2c 2022-09-23 op config_getproxy(struct galileo *env, struct imsg *imsg)
84 afb86b2c 2022-09-23 op struct proxy *proxy;
86 afb86b2c 2022-09-23 op proxy = xcalloc(1, sizeof(*proxy));
87 afb86b2c 2022-09-23 op if (IMSG_DATA_SIZE(imsg) != sizeof(*proxy))
88 b0a6bcf7 2022-09-13 op fatalx("%s: bad imsg size", __func__);
90 afb86b2c 2022-09-23 op memcpy(proxy, imsg->data, sizeof(*proxy));
92 26cd3e9d 2022-09-23 op log_debug("%s: proxy=%s -> %s:%s (%s)", __func__,
93 afb86b2c 2022-09-23 op proxy->pr_conf.host, proxy->pr_conf.proxy_addr,
94 afb86b2c 2022-09-23 op proxy->pr_conf.proxy_port, proxy->pr_conf.proxy_name);
96 afb86b2c 2022-09-23 op TAILQ_INSERT_TAIL(&env->sc_proxies, proxy, pr_entry);
102 b0a6bcf7 2022-09-13 op config_setsock(struct galileo *env)
104 b0a6bcf7 2022-09-13 op struct privsep *ps = env->sc_ps;
105 b0a6bcf7 2022-09-13 op struct passwd *pw = ps->ps_pw;
106 b0a6bcf7 2022-09-13 op struct sockaddr_un sun;
107 b0a6bcf7 2022-09-13 op const char *path = GALILEO_SOCK;
108 b0a6bcf7 2022-09-13 op int id, fd, old_umask;
111 b0a6bcf7 2022-09-13 op * open listening socket.
113 b0a6bcf7 2022-09-13 op * XXX: move to server.c as server_privinit like httpd once we
114 b0a6bcf7 2022-09-13 op * support more than one listening socket.
116 b0a6bcf7 2022-09-13 op if ((fd = socket(AF_UNIX, SOCK_STREAM | SOCK_NONBLOCK, 0)) == -1) {
117 b0a6bcf7 2022-09-13 op log_warn("%s: socket", __func__);
121 b0a6bcf7 2022-09-13 op memset(&sun, 0, sizeof(sun));
122 b0a6bcf7 2022-09-13 op sun.sun_family = AF_UNIX;
123 b0a6bcf7 2022-09-13 op strlcpy(sun.sun_path, path, sizeof(sun.sun_path));
125 b0a6bcf7 2022-09-13 op if (unlink(path) == -1)
126 b0a6bcf7 2022-09-13 op if (errno != ENOENT) {
127 b0a6bcf7 2022-09-13 op log_warn("%s: unlink %s", __func__, path);
132 b0a6bcf7 2022-09-13 op old_umask = umask(S_IXUSR|S_IXGRP|S_IWOTH|S_IROTH|S_IXOTH);
133 b0a6bcf7 2022-09-13 op if (bind(fd, (struct sockaddr *)&sun, sizeof(sun)) == -1) {
134 b0a6bcf7 2022-09-13 op log_warn("%s: bind: %s (%d)", __func__, path, geteuid());
136 b0a6bcf7 2022-09-13 op umask(old_umask);
139 b0a6bcf7 2022-09-13 op umask(old_umask);
141 b0a6bcf7 2022-09-13 op if (chmod(path, S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP) == -1) {
142 b0a6bcf7 2022-09-13 op log_warn("%s: chmod", __func__);
144 b0a6bcf7 2022-09-13 op (void)unlink(path);
148 b0a6bcf7 2022-09-13 op if (chown(path, pw->pw_uid, pw->pw_gid) == -1) {
149 b0a6bcf7 2022-09-13 op log_warn("%s: chown", __func__);
151 b0a6bcf7 2022-09-13 op (void)unlink(path);
155 b0a6bcf7 2022-09-13 op if (listen(fd, 5) == -1) {
156 b0a6bcf7 2022-09-13 op log_warn("%s: listen", __func__);
158 b0a6bcf7 2022-09-13 op (void)unlink(path);
162 b0a6bcf7 2022-09-13 op for (id = 0; id < PROC_MAX; ++id) {
165 b0a6bcf7 2022-09-13 op if (id == privsep_process || id != PROC_PROXY)
169 b0a6bcf7 2022-09-13 op proc_range(ps, id, &n, &m);
170 b0a6bcf7 2022-09-13 op for (n = 0; n < m; ++n) {
173 b0a6bcf7 2022-09-13 op if ((d = dup(fd)) == -1) {
174 b0a6bcf7 2022-09-13 op log_warn("%s: dup", __func__);
179 b0a6bcf7 2022-09-13 op if (proc_compose_imsg(ps, id, n, IMSG_CFG_SOCK,
180 b0a6bcf7 2022-09-13 op -1, d, NULL, 0) == -1) {
181 b0a6bcf7 2022-09-13 op log_warn("%s: failed to compose "
182 b0a6bcf7 2022-09-13 op "IMSG_CFG_SOCK", __func__);
186 b0a6bcf7 2022-09-13 op if (proc_flush_imsg(ps, id, n) == -1) {
187 b0a6bcf7 2022-09-13 op log_warn("%s: failed to flush", __func__);
199 b0a6bcf7 2022-09-13 op config_getsock(struct galileo *env, struct imsg *imsg)
201 b0a6bcf7 2022-09-13 op /* XXX: make it more like httpd/gotwebd' one */
202 b0a6bcf7 2022-09-13 op return imsg->fd;
206 b0a6bcf7 2022-09-13 op config_setreset(struct galileo *env)
208 b0a6bcf7 2022-09-13 op struct privsep *ps = env->sc_ps;
211 b0a6bcf7 2022-09-13 op for (id = 0; id < PROC_MAX; ++id)
212 b0a6bcf7 2022-09-13 op proc_compose(ps, id, IMSG_CTL_RESET, NULL, 0);
218 b0a6bcf7 2022-09-13 op config_getreset(struct galileo *env, struct imsg *imsg)
220 b0a6bcf7 2022-09-13 op config_purge(env);