code.delx.au - pulseaudio/blob - src/pulse/client-conf.c

   1 /***
   2   This file is part of PulseAudio.
   3
   4   Copyright 2004-2006 Lennart Poettering
   5   Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
   6
   7   PulseAudio is free software; you can redistribute it and/or modify
   8   it under the terms of the GNU Lesser General Public License as published
   9   by the Free Software Foundation; either version 2.1 of the License,
  10   or (at your option) any later version.
  11
  12   PulseAudio is distributed in the hope that it will be useful, but
  13   WITHOUT ANY WARRANTY; without even the implied warranty of
  14   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  15   General Public License for more details.
  16
  17   You should have received a copy of the GNU Lesser General Public License
  18   along with PulseAudio; if not, write to the Free Software
  19   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  20   USA.
  21 ***/
  22
  23 #ifdef HAVE_CONFIG_H
  24 #include <config.h>
  25 #endif
  26
  27 #include <stdlib.h>
  28 #include <unistd.h>
  29 #include <errno.h>
  30
  31 #include <pulse/xmalloc.h>
  32
  33 #include <pulsecore/i18n.h>
  34 #include <pulsecore/macro.h>
  35 #include <pulsecore/core-error.h>
  36 #include <pulsecore/log.h>
  37 #include <pulsecore/conf-parser.h>
  38 #include <pulsecore/core-util.h>
  39 #include <pulsecore/authkey.h>
  40
  41 #include "client-conf.h"
  42
  43 #define DEFAULT_CLIENT_CONFIG_FILE PA_DEFAULT_CONFIG_DIR PA_PATH_SEP "client.conf"
  44 #define DEFAULT_CLIENT_CONFIG_FILE_USER "client.conf"
  45
  46 #define ENV_CLIENT_CONFIG_FILE "PULSE_CLIENTCONFIG"
  47 #define ENV_DEFAULT_SINK "PULSE_SINK"
  48 #define ENV_DEFAULT_SOURCE "PULSE_SOURCE"
  49 #define ENV_DEFAULT_SERVER "PULSE_SERVER"
  50 #define ENV_DAEMON_BINARY "PULSE_BINARY"
  51 #define ENV_COOKIE_FILE "PULSE_COOKIE"
  52
  53 static const pa_client_conf default_conf = {
  54     .daemon_binary = NULL,
  55     .extra_arguments = NULL,
  56     .default_sink = NULL,
  57     .default_source = NULL,
  58     .default_server = NULL,
  59     .default_dbus_server = NULL,
  60     .autospawn = true,
  61     .disable_shm = false,
  62     .cookie_file = NULL,
  63     .cookie_valid = false,
  64     .shm_size = 0,
  65     .auto_connect_localhost = false,
  66     .auto_connect_display = false
  67 };
  68
  69 static int parse_cookie_file(pa_client_conf* c);
  70
  71 pa_client_conf *pa_client_conf_new(void) {
  72     pa_client_conf *c = pa_xmemdup(&default_conf, sizeof(default_conf));
  73
  74     c->daemon_binary = pa_xstrdup(PA_BINARY);
  75     c->extra_arguments = pa_xstrdup("--log-target=syslog");
  76     c->cookie_file = NULL;
  77
  78     return c;
  79 }
  80
  81 void pa_client_conf_free(pa_client_conf *c) {
  82     pa_assert(c);
  83     pa_xfree(c->daemon_binary);
  84     pa_xfree(c->extra_arguments);
  85     pa_xfree(c->default_sink);
  86     pa_xfree(c->default_source);
  87     pa_xfree(c->default_server);
  88     pa_xfree(c->default_dbus_server);
  89     pa_xfree(c->cookie_file);
  90     pa_xfree(c);
  91 }
  92
  93 int pa_client_conf_load(pa_client_conf *c) {
  94     FILE *f = NULL;
  95     char *fn = NULL;
  96     int r = -1;
  97
  98     /* Prepare the configuration parse table */
  99     pa_config_item table[] = {
 100         { "daemon-binary",          pa_config_parse_string,   &c->daemon_binary, NULL },
 101         { "extra-arguments",        pa_config_parse_string,   &c->extra_arguments, NULL },
 102         { "default-sink",           pa_config_parse_string,   &c->default_sink, NULL },
 103         { "default-source",         pa_config_parse_string,   &c->default_source, NULL },
 104         { "default-server",         pa_config_parse_string,   &c->default_server, NULL },
 105         { "default-dbus-server",    pa_config_parse_string,   &c->default_dbus_server, NULL },
 106         { "autospawn",              pa_config_parse_bool,     &c->autospawn, NULL },
 107         { "cookie-file",            pa_config_parse_string,   &c->cookie_file, NULL },
 108         { "disable-shm",            pa_config_parse_bool,     &c->disable_shm, NULL },
 109         { "enable-shm",             pa_config_parse_not_bool, &c->disable_shm, NULL },
 110         { "shm-size-bytes",         pa_config_parse_size,     &c->shm_size, NULL },
 111         { "auto-connect-localhost", pa_config_parse_bool,     &c->auto_connect_localhost, NULL },
 112         { "auto-connect-display",   pa_config_parse_bool,     &c->auto_connect_display, NULL },
 113         { NULL,                     NULL,                     NULL, NULL },
 114     };
 115
 116     if (!(f = pa_open_config_file(DEFAULT_CLIENT_CONFIG_FILE, DEFAULT_CLIENT_CONFIG_FILE_USER, ENV_CLIENT_CONFIG_FILE, &fn)))
 117         if (errno != ENOENT)
 118             goto finish;
 119
 120     r = f ? pa_config_parse(fn, f, table, NULL, NULL) : 0;
 121
 122     if (!r)
 123         r = parse_cookie_file(c);
 124
 125 finish:
 126     pa_xfree(fn);
 127
 128     if (f)
 129         fclose(f);
 130
 131     return r;
 132 }
 133
 134 int pa_client_conf_env(pa_client_conf *c) {
 135     char *e;
 136
 137     if ((e = getenv(ENV_DEFAULT_SINK))) {
 138         pa_xfree(c->default_sink);
 139         c->default_sink = pa_xstrdup(e);
 140     }
 141
 142     if ((e = getenv(ENV_DEFAULT_SOURCE))) {
 143         pa_xfree(c->default_source);
 144         c->default_source = pa_xstrdup(e);
 145     }
 146
 147     if ((e = getenv(ENV_DEFAULT_SERVER))) {
 148         pa_xfree(c->default_server);
 149         c->default_server = pa_xstrdup(e);
 150
 151         /* We disable autospawning automatically if a specific server was set */
 152         c->autospawn = false;
 153     }
 154
 155     if ((e = getenv(ENV_DAEMON_BINARY))) {
 156         pa_xfree(c->daemon_binary);
 157         c->daemon_binary = pa_xstrdup(e);
 158     }
 159
 160     if ((e = getenv(ENV_COOKIE_FILE))) {
 161         return pa_client_conf_load_cookie_from_file(c, e);
 162     }
 163
 164     return 0;
 165 }
 166
 167 static int parse_cookie_file(pa_client_conf* c) {
 168     int k;
 169
 170     pa_assert(c);
 171
 172     c->cookie_valid = false;
 173
 174     if (c->cookie_file)
 175         k = pa_authkey_load_auto(c->cookie_file, true, c->cookie, sizeof(c->cookie));
 176     else {
 177         k = pa_authkey_load_auto(PA_NATIVE_COOKIE_FILE, false, c->cookie, sizeof(c->cookie));
 178
 179         if (k < 0) {
 180             k = pa_authkey_load_auto(PA_NATIVE_COOKIE_FILE_FALLBACK, false, c->cookie, sizeof(c->cookie));
 181
 182             if (k < 0)
 183                 k = pa_authkey_load_auto(PA_NATIVE_COOKIE_FILE, true, c->cookie, sizeof(c->cookie));
 184         }
 185     }
 186
 187     if (k < 0)
 188         return k;
 189
 190     c->cookie_valid = true;
 191     return 0;
 192 }
 193
 194 int pa_client_conf_load_cookie_from_hex(pa_client_conf* c, const char *cookie_in_hex) {
 195     uint8_t cookie[PA_NATIVE_COOKIE_LENGTH];
 196
 197     pa_assert(c);
 198     pa_assert(cookie_in_hex);
 199
 200     if (pa_parsehex(cookie_in_hex, cookie, sizeof(cookie)) != sizeof(cookie)) {
 201         pa_log(_("Failed to parse cookie data"));
 202         return -PA_ERR_INVALID;
 203     }
 204
 205     pa_xfree(c->cookie_file);
 206     c->cookie_file = NULL;
 207
 208     return pa_client_conf_set_cookie(c, cookie, PA_NATIVE_COOKIE_LENGTH);
 209 }
 210
 211 int pa_client_conf_load_cookie_from_file(pa_client_conf *c, const char *cookie_file_path) {
 212     pa_assert(c);
 213     pa_assert(cookie_file_path);
 214
 215     pa_xfree(c->cookie_file);
 216     c->cookie_file = pa_xstrdup(cookie_file_path);
 217     return parse_cookie_file(c);
 218 }
 219
 220 int pa_client_conf_set_cookie(pa_client_conf *c, uint8_t *cookie, size_t cookie_size) {
 221     pa_assert(c);
 222     pa_assert(cookie);
 223
 224     if (cookie_size != PA_NATIVE_COOKIE_LENGTH)
 225         return -PA_ERR_INVALID;
 226     memcpy(c->cookie, cookie, cookie_size);
 227     c->cookie_valid = true;
 228     return 0;
 229 }