4 This file is part of polypaudio.
6 polypaudio is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published
8 by the Free Software Foundation; either version 2 of the License,
9 or (at your option) any later version.
11 polypaudio is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with polypaudio; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
30 #include <sys/types.h>
31 #include <sys/socket.h>
35 #include <netinet/in.h>
36 #include <arpa/inet.h>
42 #include "socket-server.h"
43 #include "socket-util.h"
48 struct pa_socket_server {
52 char *tcpwrap_service;
54 void (*on_connection)(struct pa_socket_server*s, struct pa_iochannel *io, void *userdata);
57 struct pa_io_event *io_event;
58 struct pa_mainloop_api *mainloop;
59 enum { SOCKET_SERVER_GENERIC, SOCKET_SERVER_IPV4, SOCKET_SERVER_UNIX, SOCKET_SERVER_IPV6 } type;
62 static void callback(struct pa_mainloop_api *mainloop, struct pa_io_event *e, int fd, enum pa_io_event_flags f, void *userdata) {
63 struct pa_socket_server *s = userdata;
64 struct pa_iochannel *io;
66 assert(s && s->mainloop == mainloop && s->io_event == e && e && fd >= 0 && fd == s->fd);
68 pa_socket_server_ref(s);
70 if ((nfd = accept(fd, NULL, NULL)) < 0) {
71 pa_log(__FILE__": accept(): %s\n", strerror(errno));
75 pa_fd_set_cloexec(nfd, 1);
77 if (!s->on_connection) {
84 if (s->type == SOCKET_SERVER_IPV4 && s->tcpwrap_service) {
85 struct request_info req;
87 request_init(&req, RQ_DAEMON, s->tcpwrap_service, RQ_FILE, nfd, NULL);
89 if (!hosts_access(&req)) {
90 pa_log(__FILE__": TCP connection refused by tcpwrap.\n");
95 pa_log(__FILE__": TCP connection accepted by tcpwrap.\n");
99 /* There should be a check for socket type here */
100 if (s->type == SOCKET_SERVER_IPV4)
101 pa_socket_tcp_low_delay(fd);
103 pa_socket_low_delay(fd);
105 io = pa_iochannel_new(s->mainloop, nfd, nfd);
107 s->on_connection(s, io, s->userdata);
110 pa_socket_server_unref(s);
113 struct pa_socket_server* pa_socket_server_new(struct pa_mainloop_api *m, int fd) {
114 struct pa_socket_server *s;
115 assert(m && fd >= 0);
117 s = pa_xmalloc(sizeof(struct pa_socket_server));
121 s->on_connection = NULL;
123 s->tcpwrap_service = NULL;
126 s->io_event = m->io_new(m, fd, PA_IO_EVENT_INPUT, callback, s);
129 s->type = SOCKET_SERVER_GENERIC;
134 struct pa_socket_server* pa_socket_server_ref(struct pa_socket_server *s) {
135 assert(s && s->ref >= 1);
140 struct pa_socket_server* pa_socket_server_new_unix(struct pa_mainloop_api *m, const char *filename) {
142 struct sockaddr_un sa;
143 struct pa_socket_server *s;
145 assert(m && filename);
147 if ((fd = socket(PF_LOCAL, SOCK_STREAM, 0)) < 0) {
148 pa_log(__FILE__": socket(): %s\n", strerror(errno));
152 pa_fd_set_cloexec(fd, 1);
154 sa.sun_family = AF_LOCAL;
155 strncpy(sa.sun_path, filename, sizeof(sa.sun_path)-1);
156 sa.sun_path[sizeof(sa.sun_path) - 1] = 0;
158 pa_socket_low_delay(fd);
160 if (bind(fd, (struct sockaddr*) &sa, SUN_LEN(&sa)) < 0) {
161 pa_log(__FILE__": bind(): %s\n", strerror(errno));
165 if (listen(fd, 5) < 0) {
166 pa_log(__FILE__": listen(): %s\n", strerror(errno));
170 s = pa_socket_server_new(m, fd);
173 s->filename = pa_xstrdup(filename);
174 s->type = SOCKET_SERVER_UNIX;
185 struct pa_socket_server* pa_socket_server_new_ipv4(struct pa_mainloop_api *m, uint32_t address, uint16_t port, const char *tcpwrap_service) {
186 struct pa_socket_server *ss;
188 struct sockaddr_in sa;
193 if ((fd = socket(PF_INET, SOCK_STREAM, 0)) < 0) {
194 pa_log(__FILE__": socket(): %s\n", strerror(errno));
198 pa_fd_set_cloexec(fd, 1);
200 if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on)) < 0)
201 pa_log(__FILE__": setsockopt(): %s\n", strerror(errno));
203 pa_socket_tcp_low_delay(fd);
205 memset(&sa, sizeof(sa), 0);
206 sa.sin_family = AF_INET;
207 sa.sin_port = htons(port);
208 sa.sin_addr.s_addr = htonl(address);
210 if (bind(fd, (struct sockaddr *) &sa, sizeof(sa)) < 0) {
211 pa_log(__FILE__": bind(): %s\n", strerror(errno));
215 if (listen(fd, 5) < 0) {
216 pa_log(__FILE__": listen(): %s\n", strerror(errno));
220 if ((ss = pa_socket_server_new(m, fd))) {
221 ss->type = SOCKET_SERVER_IPV4;
222 ss->tcpwrap_service = pa_xstrdup(tcpwrap_service);
234 struct pa_socket_server* pa_socket_server_new_ipv6(struct pa_mainloop_api *m, uint8_t address[16], uint16_t port) {
235 struct pa_socket_server *ss;
237 struct sockaddr_in6 sa;
242 if ((fd = socket(PF_INET6, SOCK_STREAM, 0)) < 0) {
243 pa_log(__FILE__": socket(): %s\n", strerror(errno));
247 pa_fd_set_cloexec(fd, 1);
249 if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on)) < 0)
250 pa_log(__FILE__": setsockopt(): %s\n", strerror(errno));
252 pa_socket_tcp_low_delay(fd);
254 memset(&sa, sizeof(sa), 0);
255 sa.sin6_family = AF_INET6;
256 sa.sin6_port = htons(port);
257 memcpy(sa.sin6_addr.s6_addr, address, 16);
259 if (bind(fd, (struct sockaddr *) &sa, sizeof(sa)) < 0) {
260 pa_log(__FILE__": bind(): %s\n", strerror(errno));
264 if (listen(fd, 5) < 0) {
265 pa_log(__FILE__": listen(): %s\n", strerror(errno));
269 if ((ss = pa_socket_server_new(m, fd)))
270 ss->type = SOCKET_SERVER_IPV6;
281 static void socket_server_free(struct pa_socket_server*s) {
287 pa_xfree(s->filename);
290 pa_xfree(s->tcpwrap_service);
292 s->mainloop->io_free(s->io_event);
296 void pa_socket_server_unref(struct pa_socket_server *s) {
297 assert(s && s->ref >= 1);
300 socket_server_free(s);
303 void pa_socket_server_set_callback(struct pa_socket_server*s, void (*on_connection)(struct pa_socket_server*s, struct pa_iochannel *io, void *userdata), void *userdata) {
304 assert(s && s->ref >= 1);
306 s->on_connection = on_connection;
307 s->userdata = userdata;
311 char *pa_socket_server_get_address(struct pa_socket_server *s, char *c, size_t l) {
312 assert(s && c && l > 0);
315 case SOCKET_SERVER_IPV6: {
316 struct sockaddr_in6 sa;
317 socklen_t l = sizeof(sa);
319 if (getsockname(s->fd, (struct sockaddr*) &sa, &l) < 0) {
320 pa_log(__FILE__": getsockname() failed: %s\n", strerror(errno));
324 if (memcmp(&in6addr_any, &sa.sin6_addr, sizeof(in6addr_any)) == 0) {
326 if (!pa_get_fqdn(fqdn, sizeof(fqdn)))
329 snprintf(c, l, "tcp6:%s:%u", fqdn, (unsigned) ntohs(sa.sin6_port));
331 } else if (memcmp(&in6addr_loopback, &sa.sin6_addr, sizeof(in6addr_loopback)) == 0) {
333 if (!pa_get_host_name(hn, sizeof(hn)))
336 snprintf(c, l, "{%s}tcp6:localhost:%u", hn, (unsigned) ntohs(sa.sin6_port));
338 char ip[INET6_ADDRSTRLEN];
340 if (!inet_ntop(AF_INET6, &sa.sin6_addr, ip, sizeof(ip))) {
341 pa_log(__FILE__": inet_ntop() failed: %s\n", strerror(errno));
345 snprintf(c, l, "tcp6:[%s]:%u", ip, (unsigned) ntohs(sa.sin6_port));
351 case SOCKET_SERVER_IPV4: {
352 struct sockaddr_in sa;
353 socklen_t l = sizeof(sa);
355 if (getsockname(s->fd, &sa, &l) < 0) {
356 pa_log(__FILE__": getsockname() failed: %s\n", strerror(errno));
360 if (sa.sin_addr.s_addr == INADDR_ANY) {
362 if (!pa_get_fqdn(fqdn, sizeof(fqdn)))
365 snprintf(c, l, "tcp:%s:%u", fqdn, (unsigned) ntohs(sa.sin_port));
366 } else if (sa.sin_addr.s_addr == INADDR_LOOPBACK) {
368 if (!pa_get_host_name(hn, sizeof(hn)))
371 snprintf(c, l, "{%s}tcp:localhost:%u", hn, (unsigned) ntohs(sa.sin_port));
373 char ip[INET_ADDRSTRLEN];
375 if (!inet_ntop(AF_INET, &sa.sin_addr, ip, sizeof(ip))) {
376 pa_log(__FILE__": inet_ntop() failed: %s\n", strerror(errno));
380 snprintf(c, l, "tcp:[%s]:%u", ip, (unsigned) ntohs(sa.sin_port));
387 case SOCKET_SERVER_UNIX: {
393 if (!pa_get_host_name(hn, sizeof(hn)))
396 snprintf(c, l, "{%s}unix:%s", hn, s->filename);