This file is part of polypaudio.
polypaudio is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published
+ it under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 2 of the License,
or (at your option) any later version.
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
- You should have received a copy of the GNU General Public License
+ You should have received a copy of the GNU Lesser General Public License
along with polypaudio; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
USA.
#include <netinet/in.h>
#include <arpa/inet.h>
+#ifdef HAVE_LIBWRAP
+#include <tcpd.h>
+#endif
+
#include "socket-server.h"
#include "socket-util.h"
#include "xmalloc.h"
int ref;
int fd;
char *filename;
+ char *tcpwrap_service;
void (*on_connection)(struct pa_socket_server*s, struct pa_iochannel *io, void *userdata);
void *userdata;
struct pa_io_event *io_event;
struct pa_mainloop_api *mainloop;
- enum { SOCKET_SERVER_GENERIC, SOCKET_SERVER_IPV4, SOCKET_SERVER_UNIX } type;
+ enum { SOCKET_SERVER_GENERIC, SOCKET_SERVER_IPV4, SOCKET_SERVER_UNIX, SOCKET_SERVER_IPV6 } type;
};
static void callback(struct pa_mainloop_api *mainloop, struct pa_io_event *e, int fd, enum pa_io_event_flags f, void *userdata) {
goto finish;
}
+#ifdef HAVE_LIBWRAP
+
+ if (s->type == SOCKET_SERVER_IPV4 && s->tcpwrap_service) {
+ struct request_info req;
+
+ request_init(&req, RQ_DAEMON, s->tcpwrap_service, RQ_FILE, nfd, NULL);
+ fromhost(&req);
+ if (!hosts_access(&req)) {
+ pa_log(__FILE__": TCP connection refused by tcpwrap.\n");
+ close(nfd);
+ goto finish;
+ }
+
+ pa_log(__FILE__": TCP connection accepted by tcpwrap.\n");
+ }
+#endif
+
/* There should be a check for socket type here */
if (s->type == SOCKET_SERVER_IPV4)
pa_socket_tcp_low_delay(fd);
s->filename = NULL;
s->on_connection = NULL;
s->userdata = NULL;
+ s->tcpwrap_service = NULL;
s->mainloop = m;
s->io_event = m->io_new(m, fd, PA_IO_EVENT_INPUT, callback, s);
return NULL;
}
-struct pa_socket_server* pa_socket_server_new_ipv4(struct pa_mainloop_api *m, uint32_t address, uint16_t port) {
+struct pa_socket_server* pa_socket_server_new_ipv4(struct pa_mainloop_api *m, uint32_t address, uint16_t port, const char *tcpwrap_service) {
struct pa_socket_server *ss;
int fd = -1;
struct sockaddr_in sa;
pa_socket_tcp_low_delay(fd);
+ memset(&sa, sizeof(sa), 0);
sa.sin_family = AF_INET;
sa.sin_port = htons(port);
sa.sin_addr.s_addr = htonl(address);
goto fail;
}
- if ((ss = pa_socket_server_new(m, fd)))
+ if ((ss = pa_socket_server_new(m, fd))) {
ss->type = SOCKET_SERVER_IPV4;
+ ss->tcpwrap_service = pa_xstrdup(tcpwrap_service);
+ }
+
+ return ss;
+
+fail:
+ if (fd >= 0)
+ close(fd);
+
+ return NULL;
+}
+
+struct pa_socket_server* pa_socket_server_new_ipv6(struct pa_mainloop_api *m, uint8_t address[16], uint16_t port) {
+ struct pa_socket_server *ss;
+ int fd = -1;
+ struct sockaddr_in6 sa;
+ int on = 1;
+
+ assert(m && port);
+
+ if ((fd = socket(PF_INET6, SOCK_STREAM, 0)) < 0) {
+ pa_log(__FILE__": socket(): %s\n", strerror(errno));
+ goto fail;
+ }
+
+ pa_fd_set_cloexec(fd, 1);
+
+ if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on)) < 0)
+ pa_log(__FILE__": setsockopt(): %s\n", strerror(errno));
+
+ pa_socket_tcp_low_delay(fd);
+
+ memset(&sa, sizeof(sa), 0);
+ sa.sin6_family = AF_INET6;
+ sa.sin6_port = htons(port);
+ memcpy(sa.sin6_addr.s6_addr, address, 16);
+
+ if (bind(fd, (struct sockaddr *) &sa, sizeof(sa)) < 0) {
+ pa_log(__FILE__": bind(): %s\n", strerror(errno));
+ goto fail;
+ }
+
+ if (listen(fd, 5) < 0) {
+ pa_log(__FILE__": listen(): %s\n", strerror(errno));
+ goto fail;
+ }
+
+ if ((ss = pa_socket_server_new(m, fd)))
+ ss->type = SOCKET_SERVER_IPV6;
return ss;
pa_xfree(s->filename);
}
+ pa_xfree(s->tcpwrap_service);
+
s->mainloop->io_free(s->io_event);
pa_xfree(s);
}
s->on_connection = on_connection;
s->userdata = userdata;
}
+
+
+char *pa_socket_server_get_address(struct pa_socket_server *s, char *c, size_t l) {
+ assert(s && c && l > 0);
+
+ switch (s->type) {
+ case SOCKET_SERVER_IPV6: {
+ struct sockaddr_in6 sa;
+ socklen_t l = sizeof(sa);
+
+ if (getsockname(s->fd, (struct sockaddr*) &sa, &l) < 0) {
+ pa_log(__FILE__": getsockname() failed: %s\n", strerror(errno));
+ return NULL;
+ }
+
+ if (memcmp(&in6addr_any, &sa.sin6_addr, sizeof(in6addr_any)) == 0) {
+ char fqdn[256];
+ if (!pa_get_fqdn(fqdn, sizeof(fqdn)))
+ return NULL;
+
+ snprintf(c, l, "tcp6:%s:%u", fqdn, (unsigned) ntohs(sa.sin6_port));
+
+ } else if (memcmp(&in6addr_loopback, &sa.sin6_addr, sizeof(in6addr_loopback)) == 0) {
+ char hn[256];
+ if (!pa_get_host_name(hn, sizeof(hn)))
+ return NULL;
+
+ snprintf(c, l, "{%s}tcp6:localhost:%u", hn, (unsigned) ntohs(sa.sin6_port));
+ } else {
+ char ip[INET6_ADDRSTRLEN];
+
+ if (!inet_ntop(AF_INET6, &sa.sin6_addr, ip, sizeof(ip))) {
+ pa_log(__FILE__": inet_ntop() failed: %s\n", strerror(errno));
+ return NULL;
+ }
+
+ snprintf(c, l, "tcp6:[%s]:%u", ip, (unsigned) ntohs(sa.sin6_port));
+ }
+
+ return c;
+ }
+
+ case SOCKET_SERVER_IPV4: {
+ struct sockaddr_in sa;
+ socklen_t l = sizeof(sa);
+
+ if (getsockname(s->fd, &sa, &l) < 0) {
+ pa_log(__FILE__": getsockname() failed: %s\n", strerror(errno));
+ return NULL;
+ }
+
+ if (sa.sin_addr.s_addr == INADDR_ANY) {
+ char fqdn[256];
+ if (!pa_get_fqdn(fqdn, sizeof(fqdn)))
+ return NULL;
+
+ snprintf(c, l, "tcp:%s:%u", fqdn, (unsigned) ntohs(sa.sin_port));
+ } else if (sa.sin_addr.s_addr == INADDR_LOOPBACK) {
+ char hn[256];
+ if (!pa_get_host_name(hn, sizeof(hn)))
+ return NULL;
+
+ snprintf(c, l, "{%s}tcp:localhost:%u", hn, (unsigned) ntohs(sa.sin_port));
+ } else {
+ char ip[INET_ADDRSTRLEN];
+
+ if (!inet_ntop(AF_INET, &sa.sin_addr, ip, sizeof(ip))) {
+ pa_log(__FILE__": inet_ntop() failed: %s\n", strerror(errno));
+ return NULL;
+ }
+
+ snprintf(c, l, "tcp:[%s]:%u", ip, (unsigned) ntohs(sa.sin_port));
+
+ }
+
+ return c;
+ }
+
+ case SOCKET_SERVER_UNIX: {
+ char hn[256];
+
+ if (!s->filename)
+ return NULL;
+
+ if (!pa_get_host_name(hn, sizeof(hn)))
+ return NULL;
+
+ snprintf(c, l, "{%s}unix:%s", hn, s->filename);
+ return c;
+ }
+
+ default:
+ return NULL;
+ }
+}