code.delx.au - pulseaudio/blob - src/modules/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 Lesser 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 Lesser 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 <unistd.h>
  31 #include <limits.h>
  32
  33 #ifdef HAVE_SYS_SOCKET_H
  34 #include <sys/socket.h>
  35 #endif
  36 #ifdef HAVE_ARPA_INET_H
  37 #include <arpa/inet.h>
  38 #endif
  39 #ifdef HAVE_NETINET_IN_H
  40 #include <netinet/in.h>
  41 #endif
  42
  43 #include "../polypcore/winsock.h"
  44
  45 #include <polypcore/module.h>
  46 #include <polypcore/socket-server.h>
  47 #include <polypcore/socket-util.h>
  48 #include <polypcore/util.h>
  49 #include <polypcore/modargs.h>
  50 #include <polypcore/log.h>
  51 #include <polypcore/native-common.h>
  52
  53 #ifdef USE_TCP_SOCKETS
  54 #define SOCKET_DESCRIPTION "(TCP sockets)"
  55 #define SOCKET_USAGE "port=<TCP port number> loopback=<listen on loopback device only?>"
  56 #elif defined(USE_TCP6_SOCKETS)
  57 #define SOCKET_DESCRIPTION "(TCP/IPv6 sockets)"
  58 #define SOCKET_USAGE "port=<TCP port number> loopback=<listen on loopback device only?>"
  59 #else
  60 #define SOCKET_DESCRIPTION "(UNIX sockets)"
  61 #define SOCKET_USAGE "socket=<path to UNIX socket>"
  62 #endif
  63
  64 #if defined(USE_PROTOCOL_SIMPLE)
  65   #include <polypcore/protocol-simple.h>
  66   #define protocol_new pa_protocol_simple_new
  67   #define protocol_free pa_protocol_simple_free
  68   #define TCPWRAP_SERVICE "polypaudio-simple"
  69   #define IPV4_PORT 4711
  70   #define UNIX_SOCKET "simple"
  71   #define MODULE_ARGUMENTS "rate", "format", "channels", "sink", "source", "playback", "record",
  72   #if defined(USE_TCP_SOCKETS)
  73     #include "module-simple-protocol-tcp-symdef.h"
  74   #elif defined(USE_TCP6_SOCKETS)
  75     #include "module-simple-protocol-tcp6-symdef.h"
  76   #else
  77     #include "module-simple-protocol-unix-symdef.h"
  78   #endif
  79   PA_MODULE_DESCRIPTION("Simple protocol "SOCKET_DESCRIPTION)
  80   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)
  81 #elif defined(USE_PROTOCOL_CLI)
  82   #include <polypcore/protocol-cli.h>
  83   #define protocol_new pa_protocol_cli_new
  84   #define protocol_free pa_protocol_cli_free
  85   #define TCPWRAP_SERVICE "polypaudio-cli"
  86   #define IPV4_PORT 4712
  87   #define UNIX_SOCKET "cli"
  88   #define MODULE_ARGUMENTS
  89   #ifdef USE_TCP_SOCKETS
  90     #include "module-cli-protocol-tcp-symdef.h"
  91   #elif defined(USE_TCP6_SOCKETS)
  92     #include "module-cli-protocol-tcp6-symdef.h"
  93   #else
  94     #include "module-cli-protocol-unix-symdef.h"
  95   #endif
  96   PA_MODULE_DESCRIPTION("Command line interface protocol "SOCKET_DESCRIPTION)
  97   PA_MODULE_USAGE(SOCKET_USAGE)
  98 #elif defined(USE_PROTOCOL_HTTP)
  99   #include <polypcore/protocol-http.h>
 100   #define protocol_new pa_protocol_http_new
 101   #define protocol_free pa_protocol_http_free
 102   #define TCPWRAP_SERVICE "polypaudio-http"
 103   #define IPV4_PORT 4714
 104   #define UNIX_SOCKET "http"
 105   #define MODULE_ARGUMENTS
 106   #ifdef USE_TCP_SOCKETS
 107     #include "module-http-protocol-tcp-symdef.h"
 108   #elif defined(USE_TCP6_SOCKETS)
 109     #include "module-http-protocol-tcp6-symdef.h"
 110   #else
 111     #include "module-http-protocol-unix-symdef.h"
 112   #endif
 113   PA_MODULE_DESCRIPTION("HTTP "SOCKET_DESCRIPTION)
 114   PA_MODULE_USAGE(SOCKET_USAGE)
 115 #elif defined(USE_PROTOCOL_NATIVE)
 116   #include <polypcore/protocol-native.h>
 117   #define protocol_new pa_protocol_native_new
 118   #define protocol_free pa_protocol_native_free
 119   #define TCPWRAP_SERVICE "polypaudio-native"
 120   #define IPV4_PORT PA_NATIVE_DEFAULT_PORT
 121   #define UNIX_SOCKET PA_NATIVE_DEFAULT_UNIX_SOCKET
 122   #define MODULE_ARGUMENTS "public", "cookie",
 123   #ifdef USE_TCP_SOCKETS
 124     #include "module-native-protocol-tcp-symdef.h"
 125   #elif defined(USE_TCP6_SOCKETS)
 126     #include "module-native-protocol-tcp6-symdef.h"
 127   #else
 128     #include "module-native-protocol-unix-symdef.h"
 129   #endif
 130   PA_MODULE_DESCRIPTION("Native protocol "SOCKET_DESCRIPTION)
 131   PA_MODULE_USAGE("public=<don't check for cookies?> cookie=<path to cookie file> "SOCKET_USAGE)
 132 #elif defined(USE_PROTOCOL_ESOUND)
 133   #include <polypcore/protocol-esound.h>
 134   #include <polypcore/esound.h>
 135   #define protocol_new pa_protocol_esound_new
 136   #define protocol_free pa_protocol_esound_free
 137   #define TCPWRAP_SERVICE "esound"
 138   #define IPV4_PORT ESD_DEFAULT_PORT
 139   #define UNIX_SOCKET ESD_UNIX_SOCKET_NAME
 140   #define MODULE_ARGUMENTS "sink", "source", "public", "cookie",
 141   #ifdef USE_TCP_SOCKETS
 142     #include "module-esound-protocol-tcp-symdef.h"
 143   #elif defined(USE_TCP6_SOCKETS)
 144     #include "module-esound-protocol-tcp6-symdef.h"
 145   #else
 146     #include "module-esound-protocol-unix-symdef.h"
 147   #endif
 148   PA_MODULE_DESCRIPTION("ESOUND protocol "SOCKET_DESCRIPTION)
 149   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)
 150 #else
 151   #error "Broken build system"
 152 #endif
 153
 154 PA_MODULE_AUTHOR("Lennart Poettering")
 155 PA_MODULE_VERSION(PACKAGE_VERSION)
 156
 157 static const char* const valid_modargs[] = {
 158     MODULE_ARGUMENTS
 159 #if defined(USE_TCP_SOCKETS) || defined(USE_TCP6_SOCKETS)
 160     "port",
 161     "loopback",
 162 #else
 163     "socket",
 164 #endif
 165     NULL
 166 };
 167
 168 static pa_socket_server *create_socket_server(pa_core *c, pa_modargs *ma) {
 169     pa_socket_server *s;
 170 #if defined(USE_TCP_SOCKETS) || defined(USE_TCP6_SOCKETS)
 171     int loopback = 1;
 172     uint32_t port = IPV4_PORT;
 173
 174     if (pa_modargs_get_value_boolean(ma, "loopback", &loopback) < 0) {
 175         pa_log(__FILE__": loopback= expects a boolean argument.\n");
 176         return NULL;
 177     }
 178
 179     if (pa_modargs_get_value_u32(ma, "port", &port) < 0 || port < 1 || port > 0xFFFF) {
 180         pa_log(__FILE__": port= expects a numerical argument between 1 and 65535.\n");
 181         return NULL;
 182     }
 183
 184 #ifdef USE_TCP6_SOCKETS
 185     if (!(s = pa_socket_server_new_ipv6(c->mainloop, loopback ? (const uint8_t*) &in6addr_loopback : (const uint8_t*) &in6addr_any, port)))
 186         return NULL;
 187 #else
 188     if (!(s = pa_socket_server_new_ipv4(c->mainloop, loopback ? INADDR_LOOPBACK : INADDR_ANY, port, TCPWRAP_SERVICE)))
 189         return NULL;
 190 #endif
 191
 192 #else
 193     int r;
 194     const char *v;
 195     char tmp[PATH_MAX];
 196
 197     v = pa_modargs_get_value(ma, "socket", UNIX_SOCKET);
 198     assert(v);
 199
 200     pa_runtime_path(v, tmp, sizeof(tmp));
 201
 202     if (pa_make_secure_parent_dir(tmp) < 0) {
 203         pa_log(__FILE__": Failed to create secure socket directory.\n");
 204         return NULL;
 205     }
 206
 207     if ((r = pa_unix_socket_remove_stale(tmp)) < 0) {
 208         pa_log(__FILE__": Failed to remove stale UNIX socket '%s': %s\n", tmp, strerror(errno));
 209         return NULL;
 210     }
 211
 212     if (r)
 213         pa_log(__FILE__": Removed stale UNIX socket '%s'.", tmp);
 214
 215     if (!(s = pa_socket_server_new_unix(c->mainloop, tmp)))
 216         return NULL;
 217
 218 #endif
 219     return s;
 220 }
 221
 222 int pa__init(pa_core *c, pa_module*m) {
 223     pa_socket_server *s;
 224     pa_modargs *ma = NULL;
 225     int ret = -1;
 226     assert(c && m);
 227
 228     if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
 229         pa_log(__FILE__": Failed to parse module arguments\n");
 230         goto finish;
 231     }
 232
 233     if (!(s = create_socket_server(c, ma)))
 234         goto finish;
 235
 236     if (!(m->userdata = protocol_new(c, s, m, ma))) {
 237         pa_socket_server_unref(s);
 238         goto finish;
 239     }
 240
 241     ret = 0;
 242
 243 finish:
 244     if (ma)
 245         pa_modargs_free(ma);
 246
 247     return ret;
 248 }
 249
 250 void pa__done(pa_core *c, pa_module*m) {
 251     assert(c && m);
 252
 253 #if defined(USE_PROTOCOL_ESOUND)
 254         if (remove (ESD_UNIX_SOCKET_NAME) != 0)
 255                 pa_log("%s: Failed to remove %s : %s.\n", __FILE__, ESD_UNIX_SOCKET_NAME, strerror (errno));
 256         if (remove (ESD_UNIX_SOCKET_DIR) != 0)
 257                 pa_log("%s: Failed to remove %s : %s.\n", __FILE__, ESD_UNIX_SOCKET_DIR, strerror (errno));
 258 #endif
 259
 260     protocol_free(m->userdata);
 261 }