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
  42 #ifdef USE_TCP_SOCKETS
  43 #define SOCKET_DESCRIPTION "(TCP sockets)"
  44 #define SOCKET_USAGE "port=<TCP port number> loopback=<listen on loopback device only?>"
  45 #else
  46 #define SOCKET_DESCRIPTION "(UNIX sockets)"
  47 #define SOCKET_USAGE "socket=<path to UNIX socket>"
  48 #endif
  49
  50 #if defined(USE_PROTOCOL_SIMPLE)
  51   #include "protocol-simple.h"
  52   #define protocol_new pa_protocol_simple_new
  53   #define protocol_free pa_protocol_simple_free
  54   #define TCPWRAP_SERVICE "polypaudio-simple"
  55   #define IPV4_PORT 4711
  56   #define UNIX_SOCKET "/tmp/polypaudio/simple"
  57   #define MODULE_ARGUMENTS "rate", "format", "channels", "sink", "source", "playback", "record",
  58   #ifdef USE_TCP_SOCKETS
  59     #include "module-simple-protocol-tcp-symdef.h"
  60   #else
  61     #include "module-simple-protocol-unix-symdef.h"
  62   #endif
  63   PA_MODULE_DESCRIPTION("Simple protocol "SOCKET_DESCRIPTION)
  64   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)
  65 #elif defined(USE_PROTOCOL_CLI)
  66   #include "protocol-cli.h"
  67   #define protocol_new pa_protocol_cli_new
  68   #define protocol_free pa_protocol_cli_free
  69   #define TCPWRAP_SERVICE "polypaudio-cli"
  70   #define IPV4_PORT 4712
  71   #define UNIX_SOCKET "/tmp/polypaudio/cli"
  72   #define MODULE_ARGUMENTS
  73   #ifdef USE_TCP_SOCKETS
  74     #include "module-cli-protocol-tcp-symdef.h"
  75   #else
  76     #include "module-cli-protocol-unix-symdef.h"
  77   #endif
  78   PA_MODULE_DESCRIPTION("Command line interface protocol "SOCKET_DESCRIPTION)
  79   PA_MODULE_USAGE(SOCKET_USAGE)
  80 #elif defined(USE_PROTOCOL_NATIVE)
  81   #include "protocol-native.h"
  82   #define protocol_new pa_protocol_native_new
  83   #define protocol_free pa_protocol_native_free
  84   #define TCPWRAP_SERVICE "polypaudio-native"
  85   #define IPV4_PORT PA_NATIVE_DEFAULT_PORT
  86   #define UNIX_SOCKET "/tmp/polypaudio/native"
  87   #define MODULE_ARGUMENTS "public", "cookie",
  88   #ifdef USE_TCP_SOCKETS
  89     #include "module-native-protocol-tcp-symdef.h"
  90   #else
  91     #include "module-native-protocol-unix-symdef.h"
  92   #endif
  93   PA_MODULE_DESCRIPTION("Native protocol "SOCKET_DESCRIPTION)
  94   PA_MODULE_USAGE("public=<don't check for cookies?> cookie=<path to cookie file> "SOCKET_USAGE)
  95 #elif defined(USE_PROTOCOL_ESOUND)
  96   #include "protocol-esound.h"
  97   #include "esound.h"
  98   #define protocol_new pa_protocol_esound_new
  99   #define protocol_free pa_protocol_esound_free
 100   #define TCPWRAP_SERVICE "esound"
 101   #define IPV4_PORT ESD_DEFAULT_PORT
 102   #define UNIX_SOCKET ESD_UNIX_SOCKET_NAME
 103   #define MODULE_ARGUMENTS "sink", "source", "public", "cookie",
 104   #ifdef USE_TCP_SOCKETS
 105     #include "module-esound-protocol-tcp-symdef.h"
 106   #else
 107     #include "module-esound-protocol-unix-symdef.h"
 108   #endif
 109   PA_MODULE_DESCRIPTION("EsounD protocol "SOCKET_DESCRIPTION)
 110   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)
 111 #else
 112   #error "Broken build system"
 113 #endif
 114
 115 PA_MODULE_AUTHOR("Lennart Poettering")
 116 PA_MODULE_VERSION(PACKAGE_VERSION)
 117
 118 static const char* const valid_modargs[] = {
 119     MODULE_ARGUMENTS
 120 #ifdef USE_TCP_SOCKETS
 121     "port",
 122     "loopback",
 123 #else
 124     "socket",
 125 #endif
 126     NULL
 127 };
 128
 129 static struct pa_socket_server *create_socket_server(struct pa_core *c, struct pa_modargs *ma) {
 130     struct pa_socket_server *s;
 131 #ifdef USE_TCP_SOCKETS
 132     int loopback = 1;
 133     uint32_t port = IPV4_PORT;
 134
 135     if (pa_modargs_get_value_boolean(ma, "loopback", &loopback) < 0) {
 136         pa_log(__FILE__": loopback= expects a numerical argument.\n");
 137         return NULL;
 138     }
 139
 140     if (pa_modargs_get_value_u32(ma, "port", &port) < 0 || port < 1 || port > 0xFFFF) {
 141         pa_log(__FILE__": port= expects a numerical argument between 1 and 65535.\n");
 142         return NULL;
 143     }
 144
 145     if (!(s = pa_socket_server_new_ipv4(c->mainloop, loopback ? INADDR_LOOPBACK : INADDR_ANY, port, TCPWRAP_SERVICE)))
 146         return NULL;
 147 #else
 148     int r;
 149     const char *p;
 150
 151     p = pa_modargs_get_value(ma, "socket", UNIX_SOCKET);
 152     assert(p);
 153
 154     if (pa_unix_socket_make_secure_dir(p) < 0) {
 155         pa_log(__FILE__": Failed to create secure socket directory.\n");
 156         return NULL;
 157     }
 158
 159     if ((r = pa_unix_socket_remove_stale(p)) < 0) {
 160         pa_log(__FILE__": Failed to remove stale UNIX socket '%s': %s\n", p, strerror(errno));
 161         return NULL;
 162     }
 163
 164     if (r)
 165         pa_log(__FILE__": Removed stale UNIX socket '%s'.", p);
 166
 167     if (!(s = pa_socket_server_new_unix(c->mainloop, p)))
 168         return NULL;
 169
 170 #endif
 171     return s;
 172 }
 173
 174 int pa__init(struct pa_core *c, struct pa_module*m) {
 175     struct pa_socket_server *s;
 176     struct pa_modargs *ma = NULL;
 177     int ret = -1;
 178     assert(c && m);
 179
 180     if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
 181         pa_log(__FILE__": Failed to parse module arguments\n");
 182         goto finish;
 183     }
 184
 185     if (!(s = create_socket_server(c, ma)))
 186         goto finish;
 187
 188     if (!(m->userdata = protocol_new(c, s, m, ma))) {
 189         pa_socket_server_unref(s);
 190         goto finish;
 191     }
 192
 193     ret = 0;
 194
 195 finish:
 196     if (ma)
 197         pa_modargs_free(ma);
 198
 199     return ret;
 200 }
 201
 202 void pa__done(struct pa_core *c, struct pa_module*m) {
 203     assert(c && m);
 204
 205     protocol_free(m->userdata);
 206 }