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, const char *filename) {
  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 (filename) {
 117
 118         if (!(f = pa_fopen_cloexec(filename, "r"))) {
 119             pa_log(_("Failed to open configuration file '%s': %s"), fn, pa_cstrerror(errno));
 120             goto finish;
 121         }
 122
 123         fn = pa_xstrdup(fn);
 124
 125     } else {
 126
 127         if (!(f = pa_open_config_file(DEFAULT_CLIENT_CONFIG_FILE, DEFAULT_CLIENT_CONFIG_FILE_USER, ENV_CLIENT_CONFIG_FILE, &fn)))
 128             if (errno != ENOENT)
 129                 goto finish;
 130     }
 131
 132     r = f ? pa_config_parse(fn, f, table, NULL, NULL) : 0;
 133
 134     if (!r)
 135         r = parse_cookie_file(c);
 136
 137 finish:
 138     pa_xfree(fn);
 139
 140     if (f)
 141         fclose(f);
 142
 143     return r;
 144 }
 145
 146 int pa_client_conf_env(pa_client_conf *c) {
 147     char *e;
 148
 149     if ((e = getenv(ENV_DEFAULT_SINK))) {
 150         pa_xfree(c->default_sink);
 151         c->default_sink = pa_xstrdup(e);
 152     }
 153
 154     if ((e = getenv(ENV_DEFAULT_SOURCE))) {
 155         pa_xfree(c->default_source);
 156         c->default_source = pa_xstrdup(e);
 157     }
 158
 159     if ((e = getenv(ENV_DEFAULT_SERVER))) {
 160         pa_xfree(c->default_server);
 161         c->default_server = pa_xstrdup(e);
 162
 163         /* We disable autospawning automatically if a specific server was set */
 164         c->autospawn = false;
 165     }
 166
 167     if ((e = getenv(ENV_DAEMON_BINARY))) {
 168         pa_xfree(c->daemon_binary);
 169         c->daemon_binary = pa_xstrdup(e);
 170     }
 171
 172     if ((e = getenv(ENV_COOKIE_FILE))) {
 173         return pa_client_conf_load_cookie_from_file(c, e);
 174     }
 175
 176     return 0;
 177 }
 178
 179 static int parse_cookie_file(pa_client_conf* c) {
 180     int k;
 181
 182     pa_assert(c);
 183
 184     c->cookie_valid = false;
 185
 186     if (c->cookie_file)
 187         k = pa_authkey_load_auto(c->cookie_file, true, c->cookie, sizeof(c->cookie));
 188     else {
 189         k = pa_authkey_load_auto(PA_NATIVE_COOKIE_FILE, false, c->cookie, sizeof(c->cookie));
 190
 191         if (k < 0) {
 192             k = pa_authkey_load_auto(PA_NATIVE_COOKIE_FILE_FALLBACK, false, c->cookie, sizeof(c->cookie));
 193
 194             if (k < 0)
 195                 k = pa_authkey_load_auto(PA_NATIVE_COOKIE_FILE, true, c->cookie, sizeof(c->cookie));
 196         }
 197     }
 198
 199     if (k < 0)
 200         return k;
 201
 202     c->cookie_valid = true;
 203     return 0;
 204 }
 205
 206 int pa_client_conf_load_cookie_from_hex(pa_client_conf* c, const char *cookie_in_hex) {
 207     uint8_t cookie[PA_NATIVE_COOKIE_LENGTH];
 208
 209     pa_assert(c);
 210     pa_assert(cookie_in_hex);
 211
 212     if (pa_parsehex(cookie_in_hex, cookie, sizeof(cookie)) != sizeof(cookie)) {
 213         pa_log(_("Failed to parse cookie data"));
 214         return -PA_ERR_INVALID;
 215     }
 216
 217     pa_xfree(c->cookie_file);
 218     c->cookie_file = NULL;
 219
 220     return pa_client_conf_set_cookie(c, cookie, PA_NATIVE_COOKIE_LENGTH);
 221 }
 222
 223 int pa_client_conf_load_cookie_from_file(pa_client_conf *c, const char *cookie_file_path) {
 224     pa_assert(c);
 225     pa_assert(cookie_file_path);
 226
 227     pa_xfree(c->cookie_file);
 228     c->cookie_file = pa_xstrdup(cookie_file_path);
 229     return parse_cookie_file(c);
 230 }
 231
 232 int pa_client_conf_set_cookie(pa_client_conf *c, uint8_t *cookie, size_t cookie_size) {
 233     pa_assert(c);
 234     pa_assert(cookie);
 235
 236     if (cookie_size != PA_NATIVE_COOKIE_LENGTH)
 237         return -PA_ERR_INVALID;
 238     memcpy(c->cookie, cookie, cookie_size);
 239     c->cookie_valid = true;
 240     return 0;
 241 }