code.delx.au - pulseaudio/blob - polyp/module-protocol-stub.c

   1 /* $Id$ */
   2
   3 /***
   4   This file is part of polypaudio.
   5
   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.
  10
  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.
  15
  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
  19   USA.
  20 ***/
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 #include <string.h>
  27 #include <errno.h>
  28 #include <stdio.h>
  29 #include <assert.h>
  30 #include <arpa/inet.h>
  31 #include <unistd.h>
  32 #include <netinet/in.h>
  33
  34 #include "module.h"
  35 #include "socket-server.h"
  36 #include "socket-util.h"
  37 #include "util.h"
  38 #include "modargs.h"
  39 #include "log.h"
  40 #include "native-common.h"
  41 #include "util.h"
  42
  43 #ifdef USE_TCP_SOCKETS
  44 #define SOCKET_DESCRIPTION "(TCP sockets)"
  45 #define SOCKET_USAGE "port=<TCP port number> loopback=<listen on loopback device only?>"
  46 #elif defined(USE_TCP6_SOCKETS)
  47 #define SOCKET_DESCRIPTION "(TCP/IPv6 sockets)"
  48 #define SOCKET_USAGE "port=<TCP port number> loopback=<listen on loopback device only?>"
  49 #else
  50 #define SOCKET_DESCRIPTION "(UNIX sockets)"
  51 #define SOCKET_USAGE "socket=<path to UNIX socket>"
  52 #endif
  53
  54 #if defined(USE_PROTOCOL_SIMPLE)
  55   #include "protocol-simple.h"
  56   #define protocol_new pa_protocol_simple_new
  57   #define protocol_free pa_protocol_simple_free
  58   #define TCPWRAP_SERVICE "polypaudio-simple"
  59   #define IPV4_PORT 4711
  60   #define UNIX_SOCKET "simple"
  61   #define MODULE_ARGUMENTS "rate", "format", "channels", "sink", "source", "playback", "record",
  62   #if defined(USE_TCP_SOCKETS)
  63     #include "module-simple-protocol-tcp-symdef.h"
  64   #elif defined(USE_TCP6_SOCKETS)
  65     #include "module-simple-protocol-tcp6-symdef.h"
  66   #else
  67     #include "module-simple-protocol-unix-symdef.h"
  68   #endif
  69   PA_MODULE_DESCRIPTION("Simple protocol "SOCKET_DESCRIPTION)
  70   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)
  71 #elif defined(USE_PROTOCOL_CLI)
  72   #include "protocol-cli.h"
  73   #define protocol_new pa_protocol_cli_new
  74   #define protocol_free pa_protocol_cli_free
  75   #define TCPWRAP_SERVICE "polypaudio-cli"
  76   #define IPV4_PORT 4712
  77   #define UNIX_SOCKET "cli"
  78   #define MODULE_ARGUMENTS
  79   #ifdef USE_TCP_SOCKETS
  80     #include "module-cli-protocol-tcp-symdef.h"
  81   #elif defined(USE_TCP6_SOCKETS)
  82     #include "module-cli-protocol-tcp6-symdef.h"
  83   #else
  84     #include "module-cli-protocol-unix-symdef.h"
  85   #endif
  86   PA_MODULE_DESCRIPTION("Command line interface protocol "SOCKET_DESCRIPTION)
  87   PA_MODULE_USAGE(SOCKET_USAGE)
  88 #elif defined(USE_PROTOCOL_NATIVE)
  89   #include "protocol-native.h"
  90   #define protocol_new pa_protocol_native_new
  91   #define protocol_free pa_protocol_native_free
  92   #define TCPWRAP_SERVICE "polypaudio-native"
  93   #define IPV4_PORT PA_NATIVE_DEFAULT_PORT
  94   #define UNIX_SOCKET PA_NATIVE_DEFAULT_UNIX_SOCKET
  95   #define MODULE_ARGUMENTS "public", "cookie",
  96   #ifdef USE_TCP_SOCKETS
  97     #include "module-native-protocol-tcp-symdef.h"
  98   #elif defined(USE_TCP6_SOCKETS)
  99     #include "module-native-protocol-tcp6-symdef.h"
 100   #else
 101     #include "module-native-protocol-unix-symdef.h"
 102   #endif
 103   PA_MODULE_DESCRIPTION("Native protocol "SOCKET_DESCRIPTION)
 104   PA_MODULE_USAGE("public=<don't check for cookies?> cookie=<path to cookie file> "SOCKET_USAGE)
 105 #elif defined(USE_PROTOCOL_ESOUND)
 106   #include "protocol-esound.h"
 107   #include "esound.h"
 108   #define protocol_new pa_protocol_esound_new
 109   #define protocol_free pa_protocol_esound_free
 110   #define TCPWRAP_SERVICE "esound"
 111   #define IPV4_PORT ESD_DEFAULT_PORT
 112   #define UNIX_SOCKET ESD_UNIX_SOCKET_NAME
 113   #define MODULE_ARGUMENTS "sink", "source", "public", "cookie",
 114   #ifdef USE_TCP_SOCKETS
 115     #include "module-esound-protocol-tcp-symdef.h"
 116   #elif defined(USE_TCP6_SOCKETS)
 117     #include "module-esound-protocol-tcp6-symdef.h"
 118   #else
 119     #include "module-esound-protocol-unix-symdef.h"
 120   #endif
 121   PA_MODULE_DESCRIPTION("EsounD protocol "SOCKET_DESCRIPTION)
 122   PA_MODULE_USAGE("sink=<sink to connect to> source=<source to connect to> public=<don't check for cookies?> cookie=<path to cookie file> "SOCKET_USAGE)
 123 #else
 124   #error "Broken build system"
 125 #endif
 126
 127 PA_MODULE_AUTHOR("Lennart Poettering")
 128 PA_MODULE_VERSION(PACKAGE_VERSION)
 129
 130 static const char* const valid_modargs[] = {
 131     MODULE_ARGUMENTS
 132 #if defined(USE_TCP_SOCKETS) || defined(USE_TCP6_SOCKETS)
 133     "port",
 134     "loopback",
 135 #else
 136     "socket",
 137 #endif
 138     NULL
 139 };
 140
 141 static struct pa_socket_server *create_socket_server(struct pa_core *c, struct pa_modargs *ma) {
 142     struct pa_socket_server *s;
 143 #if defined(USE_TCP_SOCKETS) || defined(USE_TCP6_SOCKETS)
 144     int loopback = 1;
 145     uint32_t port = IPV4_PORT;
 146
 147     if (pa_modargs_get_value_boolean(ma, "loopback", &loopback) < 0) {
 148         pa_log(__FILE__": loopback= expects a numerical argument.\n");
 149         return NULL;
 150     }
 151
 152     if (pa_modargs_get_value_u32(ma, "port", &port) < 0 || port < 1 || port > 0xFFFF) {
 153         pa_log(__FILE__": port= expects a numerical argument between 1 and 65535.\n");
 154         return NULL;
 155     }
 156
 157 #ifdef USE_TCP6_SOCKETS
 158     if (!(s = pa_socket_server_new_ipv6(c->mainloop, loopback ? (uint8_t*) &in6addr_loopback : (uint8_t*) &in6addr_any, port)))
 159         return NULL;
 160 #else
 161     if (!(s = pa_socket_server_new_ipv4(c->mainloop, loopback ? INADDR_LOOPBACK : INADDR_ANY, port, TCPWRAP_SERVICE)))
 162         return NULL;
 163 #endif
 164
 165 #else
 166     int r;
 167     const char *v;
 168     char tmp[PATH_MAX];
 169
 170     v = pa_modargs_get_value(ma, "socket", UNIX_SOCKET);
 171     assert(v);
 172
 173     pa_runtime_path(v, tmp, sizeof(tmp));
 174
 175     if (pa_make_secure_parent_dir(tmp) < 0) {
 176         pa_log(__FILE__": Failed to create secure socket directory.\n");
 177         return NULL;
 178     }
 179
 180     if ((r = pa_unix_socket_remove_stale(tmp)) < 0) {
 181         pa_log(__FILE__": Failed to remove stale UNIX socket '%s': %s\n", tmp, strerror(errno));
 182         return NULL;
 183     }
 184
 185     if (r)
 186         pa_log(__FILE__": Removed stale UNIX socket '%s'.", tmp);
 187
 188     if (!(s = pa_socket_server_new_unix(c->mainloop, tmp)))
 189         return NULL;
 190
 191 #endif
 192     return s;
 193 }
 194
 195 int pa__init(struct pa_core *c, struct pa_module*m) {
 196     struct pa_socket_server *s;
 197     struct pa_modargs *ma = NULL;
 198     int ret = -1;
 199     assert(c && m);
 200
 201     if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
 202         pa_log(__FILE__": Failed to parse module arguments\n");
 203         goto finish;
 204     }
 205
 206     if (!(s = create_socket_server(c, ma)))
 207         goto finish;
 208
 209     if (!(m->userdata = protocol_new(c, s, m, ma))) {
 210         pa_socket_server_unref(s);
 211         goto finish;
 212     }
 213
 214     ret = 0;
 215
 216 finish:
 217     if (ma)
 218         pa_modargs_free(ma);
 219
 220     return ret;
 221 }
 222
 223 void pa__done(struct pa_core *c, struct pa_module*m) {
 224     assert(c && m);
 225
 226     protocol_free(m->userdata);
 227 }