4 This file is part of PulseAudio.
6 Copyright 2004-2006 Lennart Poettering
7 Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
9 PulseAudio is free software; you can redistribute it and/or modify
10 it under the terms of the GNU Lesser General Public License as published
11 by the Free Software Foundation; either version 2 of the License,
12 or (at your option) any later version.
14 PulseAudio is distributed in the hope that it will be useful, but
15 WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 General Public License for more details.
19 You should have received a copy of the GNU Lesser General Public License
20 along with PulseAudio; if not, write to the Free Software
21 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
33 #include <sys/types.h>
38 #ifdef HAVE_SYS_SOCKET_H
39 #include <sys/socket.h>
44 #define SUN_LEN(ptr) \
45 ((size_t)(((struct sockaddr_un *) 0)->sun_path) + strlen((ptr)->sun_path))
48 #ifdef HAVE_ARPA_INET_H
49 #include <arpa/inet.h>
51 #ifdef HAVE_NETINET_IN_H
52 #include <netinet/in.h>
59 #ifndef HAVE_INET_NTOP
60 #include "inet_ntop.h"
63 #ifndef HAVE_INET_PTON
64 #include "inet_pton.h"
69 #include <pulse/xmalloc.h>
70 #include <pulse/util.h>
72 #include <pulsecore/socket-util.h>
73 #include <pulsecore/core-util.h>
74 #include <pulsecore/log.h>
75 #include <pulsecore/core-error.h>
77 #include "socket-server.h"
79 struct pa_socket_server {
83 char *tcpwrap_service;
85 void (*on_connection)(pa_socket_server*s, pa_iochannel *io, void *userdata);
88 pa_io_event *io_event;
89 pa_mainloop_api *mainloop;
90 enum { SOCKET_SERVER_GENERIC, SOCKET_SERVER_IPV4, SOCKET_SERVER_UNIX, SOCKET_SERVER_IPV6 } type;
93 static void callback(pa_mainloop_api *mainloop, pa_io_event *e, int fd, PA_GCC_UNUSED pa_io_event_flags_t f, void *userdata) {
94 pa_socket_server *s = userdata;
97 assert(s && s->mainloop == mainloop && s->io_event == e && e && fd >= 0 && fd == s->fd);
99 pa_socket_server_ref(s);
101 if ((nfd = accept(fd, NULL, NULL)) < 0) {
102 pa_log("accept(): %s", pa_cstrerror(errno));
106 pa_fd_set_cloexec(nfd, 1);
108 if (!s->on_connection) {
115 if (s->tcpwrap_service) {
116 struct request_info req;
118 request_init(&req, RQ_DAEMON, s->tcpwrap_service, RQ_FILE, nfd, NULL);
120 if (!hosts_access(&req)) {
121 pa_log_warn("TCP connection refused by tcpwrap.");
126 pa_log_info("TCP connection accepted by tcpwrap.");
130 /* There should be a check for socket type here */
131 if (s->type == SOCKET_SERVER_IPV4)
132 pa_socket_tcp_low_delay(fd);
134 pa_socket_low_delay(fd);
136 io = pa_iochannel_new(s->mainloop, nfd, nfd);
138 s->on_connection(s, io, s->userdata);
141 pa_socket_server_unref(s);
144 pa_socket_server* pa_socket_server_new(pa_mainloop_api *m, int fd) {
146 assert(m && fd >= 0);
148 s = pa_xmalloc(sizeof(pa_socket_server));
152 s->on_connection = NULL;
154 s->tcpwrap_service = NULL;
157 s->io_event = m->io_new(m, fd, PA_IO_EVENT_INPUT, callback, s);
160 s->type = SOCKET_SERVER_GENERIC;
165 pa_socket_server* pa_socket_server_ref(pa_socket_server *s) {
166 assert(s && s->ref >= 1);
173 pa_socket_server* pa_socket_server_new_unix(pa_mainloop_api *m, const char *filename) {
175 struct sockaddr_un sa;
178 assert(m && filename);
180 if ((fd = socket(PF_UNIX, SOCK_STREAM, 0)) < 0) {
181 pa_log("socket(): %s", pa_cstrerror(errno));
185 pa_fd_set_cloexec(fd, 1);
187 sa.sun_family = AF_UNIX;
188 strncpy(sa.sun_path, filename, sizeof(sa.sun_path)-1);
189 sa.sun_path[sizeof(sa.sun_path) - 1] = 0;
191 pa_socket_low_delay(fd);
193 if (bind(fd, (struct sockaddr*) &sa, SUN_LEN(&sa)) < 0) {
194 pa_log("bind(): %s", pa_cstrerror(errno));
198 /* Allow access from all clients. Sockets like this one should
199 * always be put inside a directory with proper access rights,
200 * because not all OS check the access rights on the socket
202 chmod(filename, 0777);
204 if (listen(fd, 5) < 0) {
205 pa_log("listen(): %s", pa_cstrerror(errno));
209 s = pa_socket_server_new(m, fd);
212 s->filename = pa_xstrdup(filename);
213 s->type = SOCKET_SERVER_UNIX;
224 #else /* HAVE_SYS_UN_H */
226 pa_socket_server* pa_socket_server_new_unix(pa_mainloop_api *m, const char *filename) {
230 #endif /* HAVE_SYS_UN_H */
232 pa_socket_server* pa_socket_server_new_ipv4(pa_mainloop_api *m, uint32_t address, uint16_t port, const char *tcpwrap_service) {
233 pa_socket_server *ss;
235 struct sockaddr_in sa;
240 if ((fd = socket(PF_INET, SOCK_STREAM, 0)) < 0) {
241 pa_log("socket(PF_INET): %s", pa_cstrerror(errno));
245 pa_fd_set_cloexec(fd, 1);
248 if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on)) < 0)
249 pa_log("setsockopt(): %s", pa_cstrerror(errno));
252 pa_socket_tcp_low_delay(fd);
254 memset(&sa, 0, sizeof(sa));
255 sa.sin_family = AF_INET;
256 sa.sin_port = htons(port);
257 sa.sin_addr.s_addr = htonl(address);
259 if (bind(fd, (struct sockaddr *) &sa, sizeof(sa)) < 0) {
260 pa_log("bind(): %s", pa_cstrerror(errno));
264 if (listen(fd, 5) < 0) {
265 pa_log("listen(): %s", pa_cstrerror(errno));
269 if ((ss = pa_socket_server_new(m, fd))) {
270 ss->type = SOCKET_SERVER_IPV4;
271 ss->tcpwrap_service = pa_xstrdup(tcpwrap_service);
283 pa_socket_server* pa_socket_server_new_ipv6(pa_mainloop_api *m, const uint8_t address[16], uint16_t port, const char *tcpwrap_service) {
284 pa_socket_server *ss;
286 struct sockaddr_in6 sa;
291 if ((fd = socket(PF_INET6, SOCK_STREAM, 0)) < 0) {
292 pa_log("socket(PF_INET6): %s", pa_cstrerror(errno));
296 pa_fd_set_cloexec(fd, 1);
299 if (setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY, &on, sizeof(on)) < 0)
300 pa_log("setsockopt(IPPROTO_IPV6, IPV6_V6ONLY): %s", pa_cstrerror(errno));
304 if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on)) < 0)
305 pa_log("setsockopt(SOL_SOCKET, SO_REUSEADDR, 1): %s", pa_cstrerror(errno));
308 pa_socket_tcp_low_delay(fd);
310 memset(&sa, 0, sizeof(sa));
311 sa.sin6_family = AF_INET6;
312 sa.sin6_port = htons(port);
313 memcpy(sa.sin6_addr.s6_addr, address, 16);
315 if (bind(fd, (struct sockaddr *) &sa, sizeof(sa)) < 0) {
316 pa_log("bind(): %s", pa_cstrerror(errno));
320 if (listen(fd, 5) < 0) {
321 pa_log("listen(): %s", pa_cstrerror(errno));
325 if ((ss = pa_socket_server_new(m, fd))) {
326 ss->type = SOCKET_SERVER_IPV6;
327 ss->tcpwrap_service = pa_xstrdup(tcpwrap_service);
339 pa_socket_server* pa_socket_server_new_ipv4_loopback(pa_mainloop_api *m, uint16_t port, const char *tcpwrap_service) {
343 return pa_socket_server_new_ipv4(m, INADDR_LOOPBACK, port, tcpwrap_service);
346 pa_socket_server* pa_socket_server_new_ipv6_loopback(pa_mainloop_api *m, uint16_t port, const char *tcpwrap_service) {
350 return pa_socket_server_new_ipv6(m, in6addr_loopback.s6_addr, port, tcpwrap_service);
353 pa_socket_server* pa_socket_server_new_ipv4_any(pa_mainloop_api *m, uint16_t port, const char *tcpwrap_service) {
357 return pa_socket_server_new_ipv4(m, INADDR_ANY, port, tcpwrap_service);
360 pa_socket_server* pa_socket_server_new_ipv6_any(pa_mainloop_api *m, uint16_t port, const char *tcpwrap_service) {
364 return pa_socket_server_new_ipv6(m, in6addr_any.s6_addr, port, tcpwrap_service);
367 pa_socket_server* pa_socket_server_new_ipv4_string(pa_mainloop_api *m, const char *name, uint16_t port, const char *tcpwrap_service) {
374 if (inet_pton(AF_INET, name, &ipv4) > 0)
375 return pa_socket_server_new_ipv4(m, ntohl(ipv4.s_addr), port, tcpwrap_service);
380 pa_socket_server* pa_socket_server_new_ipv6_string(pa_mainloop_api *m, const char *name, uint16_t port, const char *tcpwrap_service) {
381 struct in6_addr ipv6;
387 if (inet_pton(AF_INET6, name, &ipv6) > 0)
388 return pa_socket_server_new_ipv6(m, ipv6.s6_addr, port, tcpwrap_service);
393 static void socket_server_free(pa_socket_server*s) {
398 pa_xfree(s->filename);
403 pa_xfree(s->tcpwrap_service);
405 s->mainloop->io_free(s->io_event);
409 void pa_socket_server_unref(pa_socket_server *s) {
410 assert(s && s->ref >= 1);
413 socket_server_free(s);
416 void pa_socket_server_set_callback(pa_socket_server*s, void (*on_connection)(pa_socket_server*s, pa_iochannel *io, void *userdata), void *userdata) {
417 assert(s && s->ref >= 1);
419 s->on_connection = on_connection;
420 s->userdata = userdata;
423 char *pa_socket_server_get_address(pa_socket_server *s, char *c, size_t l) {
424 assert(s && c && l > 0);
427 case SOCKET_SERVER_IPV6: {
428 struct sockaddr_in6 sa;
429 socklen_t sa_len = sizeof(sa);
431 if (getsockname(s->fd, (struct sockaddr*) &sa, &sa_len) < 0) {
432 pa_log("getsockname(): %s", pa_cstrerror(errno));
436 if (memcmp(&in6addr_any, &sa.sin6_addr, sizeof(in6addr_any)) == 0) {
438 if (!pa_get_fqdn(fqdn, sizeof(fqdn)))
441 snprintf(c, l, "tcp6:%s:%u", fqdn, (unsigned) ntohs(sa.sin6_port));
443 } else if (memcmp(&in6addr_loopback, &sa.sin6_addr, sizeof(in6addr_loopback)) == 0) {
445 if (!pa_get_host_name(hn, sizeof(hn)))
448 snprintf(c, l, "{%s}tcp6:localhost:%u", hn, (unsigned) ntohs(sa.sin6_port));
450 char ip[INET6_ADDRSTRLEN];
452 if (!inet_ntop(AF_INET6, &sa.sin6_addr, ip, sizeof(ip))) {
453 pa_log("inet_ntop(): %s", pa_cstrerror(errno));
457 snprintf(c, l, "tcp6:[%s]:%u", ip, (unsigned) ntohs(sa.sin6_port));
463 case SOCKET_SERVER_IPV4: {
464 struct sockaddr_in sa;
465 socklen_t sa_len = sizeof(sa);
467 if (getsockname(s->fd, (struct sockaddr*) &sa, &sa_len) < 0) {
468 pa_log("getsockname(): %s", pa_cstrerror(errno));
472 if (sa.sin_addr.s_addr == INADDR_ANY) {
474 if (!pa_get_fqdn(fqdn, sizeof(fqdn)))
477 snprintf(c, l, "tcp:%s:%u", fqdn, (unsigned) ntohs(sa.sin_port));
478 } else if (sa.sin_addr.s_addr == INADDR_LOOPBACK) {
480 if (!pa_get_host_name(hn, sizeof(hn)))
483 snprintf(c, l, "{%s}tcp:localhost:%u", hn, (unsigned) ntohs(sa.sin_port));
485 char ip[INET_ADDRSTRLEN];
487 if (!inet_ntop(AF_INET, &sa.sin_addr, ip, sizeof(ip))) {
488 pa_log("inet_ntop(): %s", pa_cstrerror(errno));
492 snprintf(c, l, "tcp:[%s]:%u", ip, (unsigned) ntohs(sa.sin_port));
499 case SOCKET_SERVER_UNIX: {
505 if (!pa_get_host_name(hn, sizeof(hn)))
508 snprintf(c, l, "{%s}unix:%s", hn, s->filename);