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pulseaudio/src/modules/module-protocol-stub.c
Pierre Ossman 64571374b3 Trying to listen on an IPv6 socket by default and only do IPv4 if that fails 
(which it doesn't most of the time) is terribly confusing. What the user
most likely wants is for it to listen to both IPv4 and IPv6 and gracefully
continue if only of them succeed.


git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@633 fefdeb5f-60dc-0310-8127-8f9354f1896f
2006-03-07 16:02:34 +00:00

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9.8 KiB
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/* $Id$ */
/***
This file is part of polypaudio.
polypaudio is free software; you can redistribute it and/or modify
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.
polypaudio is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
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 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.
***/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <string.h>
#include <errno.h>
#include <stdio.h>
#include <assert.h>
#include <unistd.h>
#include <limits.h>
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
#ifdef HAVE_ARPA_INET_H
#include <arpa/inet.h>
#endif
#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
#include "../polypcore/winsock.h"
#include <polypcore/module.h>
#include <polypcore/socket-server.h>
#include <polypcore/socket-util.h>
#include <polypcore/util.h>
#include <polypcore/modargs.h>
#include <polypcore/log.h>
#include <polypcore/native-common.h>
#include <polypcore/xmalloc.h>
#ifdef USE_TCP_SOCKETS
#define SOCKET_DESCRIPTION "(TCP sockets)"
#define SOCKET_USAGE "port=<TCP port number> loopback=<listen on loopback device only?> listen=<address to listen on>"
#else
#define SOCKET_DESCRIPTION "(UNIX sockets)"
#define SOCKET_USAGE "socket=<path to UNIX socket>"
#endif
#if defined(USE_PROTOCOL_SIMPLE)
#include <polypcore/protocol-simple.h>
#define protocol_new pa_protocol_simple_new
#define protocol_free pa_protocol_simple_free
#define TCPWRAP_SERVICE "polypaudio-simple"
#define IPV4_PORT 4711
#define UNIX_SOCKET "simple"
#define MODULE_ARGUMENTS "rate", "format", "channels", "sink", "source", "playback", "record",
#if defined(USE_TCP_SOCKETS)
#include "module-simple-protocol-tcp-symdef.h"
#else
#include "module-simple-protocol-unix-symdef.h"
#endif
PA_MODULE_DESCRIPTION("Simple protocol "SOCKET_DESCRIPTION)
PA_MODULE_USAGE("rate=<sample rate> format=<sample format> channels=<number of channels> sink=<sink to connect to> source=<source to connect to> playback=<enable playback?> record=<enable record?> "SOCKET_USAGE)
#elif defined(USE_PROTOCOL_CLI)
#include <polypcore/protocol-cli.h>
#define protocol_new pa_protocol_cli_new
#define protocol_free pa_protocol_cli_free
#define TCPWRAP_SERVICE "polypaudio-cli"
#define IPV4_PORT 4712
#define UNIX_SOCKET "cli"
#define MODULE_ARGUMENTS
#ifdef USE_TCP_SOCKETS
#include "module-cli-protocol-tcp-symdef.h"
#else
#include "module-cli-protocol-unix-symdef.h"
#endif
PA_MODULE_DESCRIPTION("Command line interface protocol "SOCKET_DESCRIPTION)
PA_MODULE_USAGE(SOCKET_USAGE)
#elif defined(USE_PROTOCOL_HTTP)
#include <polypcore/protocol-http.h>
#define protocol_new pa_protocol_http_new
#define protocol_free pa_protocol_http_free
#define TCPWRAP_SERVICE "polypaudio-http"
#define IPV4_PORT 4714
#define UNIX_SOCKET "http"
#define MODULE_ARGUMENTS
#ifdef USE_TCP_SOCKETS
#include "module-http-protocol-tcp-symdef.h"
#else
#include "module-http-protocol-unix-symdef.h"
#endif
PA_MODULE_DESCRIPTION("HTTP "SOCKET_DESCRIPTION)
PA_MODULE_USAGE(SOCKET_USAGE)
#elif defined(USE_PROTOCOL_NATIVE)
#include <polypcore/protocol-native.h>
#define protocol_new pa_protocol_native_new
#define protocol_free pa_protocol_native_free
#define TCPWRAP_SERVICE "polypaudio-native"
#define IPV4_PORT PA_NATIVE_DEFAULT_PORT
#define UNIX_SOCKET PA_NATIVE_DEFAULT_UNIX_SOCKET
#define MODULE_ARGUMENTS_COMMON "cookie", "auth-anonymous",
#ifdef USE_TCP_SOCKETS
#include "module-native-protocol-tcp-symdef.h"
#else
#include "module-native-protocol-unix-symdef.h"
#endif
#if defined(SCM_CREDENTIALS) && !defined(USE_TCP_SOCKETS)
#define MODULE_ARGUMENTS MODULE_ARGUMENTS_COMMON "auth-group",
#define AUTH_USAGE "auth-group=<local group to allow access>"
#else
#define MODULE_ARGUMENTS MODULE_ARGUMENTS_COMMON
#define AUTH_USAGE
#endif
PA_MODULE_DESCRIPTION("Native protocol "SOCKET_DESCRIPTION)
PA_MODULE_USAGE("auth-anonymous=<don't check for cookies?> cookie=<path to cookie file> "AUTH_USAGE SOCKET_USAGE)
#elif defined(USE_PROTOCOL_ESOUND)
#include <polypcore/protocol-esound.h>
#include <polypcore/esound.h>
#define protocol_new pa_protocol_esound_new
#define protocol_free pa_protocol_esound_free
#define TCPWRAP_SERVICE "esound"
#define IPV4_PORT ESD_DEFAULT_PORT
#define UNIX_SOCKET ESD_UNIX_SOCKET_NAME
#define MODULE_ARGUMENTS "sink", "source", "auth-anonymous", "cookie",
#ifdef USE_TCP_SOCKETS
#include "module-esound-protocol-tcp-symdef.h"
#else
#include "module-esound-protocol-unix-symdef.h"
#endif
PA_MODULE_DESCRIPTION("ESOUND protocol "SOCKET_DESCRIPTION)
PA_MODULE_USAGE("sink=<sink to connect to> source=<source to connect to> auth-anonymous=<don't check for cookies?> cookie=<path to cookie file> "SOCKET_USAGE)
#else
#error "Broken build system"
#endif
PA_MODULE_AUTHOR("Lennart Poettering")
PA_MODULE_VERSION(PACKAGE_VERSION)
static const char* const valid_modargs[] = {
MODULE_ARGUMENTS
#if defined(USE_TCP_SOCKETS)
"port",
"loopback",
"listen",
#else
"socket",
#endif
NULL
};
struct userdata {
#if defined(USE_TCP_SOCKETS)
void *protocol_ipv4;
void *protocol_ipv6;
#else
void *protocol_unix;
#endif
};
int pa__init(pa_core *c, pa_module*m) {
pa_modargs *ma = NULL;
int ret = -1;
struct userdata *u = NULL;
#if defined(USE_TCP_SOCKETS)
pa_socket_server *s_ipv4 = NULL;
pa_socket_server *s_ipv6 = NULL;
int loopback = 1;
uint32_t port = IPV4_PORT;
const char *listen_on;
#else
pa_socket_server *s;
int r;
const char *v;
char tmp[PATH_MAX];
#endif
assert(c && m);
#if defined(USE_TCP_SOCKETS)
if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
pa_log(__FILE__": Failed to parse module arguments");
goto finish;
}
if (pa_modargs_get_value_boolean(ma, "loopback", &loopback) < 0) {
pa_log(__FILE__": loopback= expects a boolean argument.");
goto fail;
}
if (pa_modargs_get_value_u32(ma, "port", &port) < 0 || port < 1 || port > 0xFFFF) {
pa_log(__FILE__": port= expects a numerical argument between 1 and 65535.");
goto fail;
}
listen_on = pa_modargs_get_value(ma, "listen", NULL);
if (listen_on) {
s_ipv4 = pa_socket_server_new_ipv4_string(c->mainloop, listen_on, port, TCPWRAP_SERVICE);
s_ipv6 = pa_socket_server_new_ipv6_string(c->mainloop, listen_on, port, TCPWRAP_SERVICE);
if (!s_ipv4 && !s_ipv6)
goto fail;
} else if (loopback) {
s_ipv4 = pa_socket_server_new_ipv4_loopback(c->mainloop, port, TCPWRAP_SERVICE);
s_ipv6 = pa_socket_server_new_ipv6_loopback(c->mainloop, port, TCPWRAP_SERVICE);
if (!s_ipv4 && !s_ipv6)
goto fail;
} else {
s_ipv4 = pa_socket_server_new_ipv4_any(c->mainloop, port, TCPWRAP_SERVICE);
s_ipv6 = pa_socket_server_new_ipv6_any(c->mainloop, port, TCPWRAP_SERVICE);
if (!s_ipv4 && !s_ipv6)
goto fail;
}
#else
v = pa_modargs_get_value(ma, "socket", UNIX_SOCKET);
assert(v);
pa_runtime_path(v, tmp, sizeof(tmp));
if (pa_make_secure_parent_dir(tmp) < 0) {
pa_log(__FILE__": Failed to create secure socket directory.");
goto fail;
}
if ((r = pa_unix_socket_remove_stale(tmp)) < 0) {
pa_log(__FILE__": Failed to remove stale UNIX socket '%s': %s", tmp, strerror(errno));
goto fail;
}
if (r)
pa_log(__FILE__": Removed stale UNIX socket '%s'.", tmp);
if (!(s = pa_socket_server_new_unix(c->mainloop, tmp)))
goto fail;
#endif
u = pa_xmalloc0(sizeof(struct userdata));
#if defined(USE_TCP_SOCKETS)
if (s_ipv4) {
u->protocol_ipv4 = protocol_new(c, s_ipv4, m, ma);
if (!u->protocol_ipv4)
pa_socket_server_unref(s_ipv4);
}
if (s_ipv6) {
u->protocol_ipv6 = protocol_new(c, s_ipv4, m, ma);
if (!u->protocol_ipv6)
pa_socket_server_unref(s_ipv6);
}
if (!u->protocol_ipv4 && !u->protocol_ipv6)
goto fail;
#else
if (!(u->protocol_unix = protocol_new(c, s, m, ma)))
goto fail;
#endif
ret = 0;
finish:
if (ma)
pa_modargs_free(ma);
return ret;
fail:
if (u) {
#if defined(USE_TCP_SOCKETS)
if (u->protocol_ipv4)
protocol_free(u->protocol_ipv4);
if (u->protocol_ipv6)
protocol_free(u->protocol_ipv6);
#else
if (u->protocol_unix)
protocol_free(u->protocol_unix);
#endif
pa_xfree(u);
} else {
#if defined(USE_TCP_SOCKETS)
if (s_ipv4)
pa_socket_server_unref(s_ipv4);
if (s_ipv6)
pa_socket_server_unref(s_ipv6);
#else
if (s)
pa_socket_server_unref(s);
#endif
}
goto finish;
}
void pa__done(pa_core *c, pa_module*m) {
struct userdata *u;
assert(c && m);
#if defined(USE_PROTOCOL_ESOUND) && !defined(USE_TCP_SOCKETS)
if (remove(ESD_UNIX_SOCKET_NAME) != 0)
pa_log("%s: Failed to remove %s : %s.", __FILE__, ESD_UNIX_SOCKET_NAME, strerror (errno));
if (remove(ESD_UNIX_SOCKET_DIR) != 0)
pa_log("%s: Failed to remove %s : %s.", __FILE__, ESD_UNIX_SOCKET_DIR, strerror (errno));
#endif
u = m->userdata;
assert(u);
#if defined(USE_TCP_SOCKETS)
if (u->protocol_ipv4)
protocol_free(u->protocol_ipv4);
if (u->protocol_ipv6)
protocol_free(u->protocol_ipv6);
#else
if (u->protocol_unix)
protocol_free(u->protocol_unix);
#endif
pa_xfree(u);
}
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