1 | //roard.c: |
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2 | |
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3 | #include "roard.h" |
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4 | |
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5 | char * server = ROAR_DEFAULT_SOCK_GLOBAL; // global server address |
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6 | |
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7 | void usage (void) { |
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8 | printf("Usage: roard [OPTIONS]...\n\n"); |
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9 | |
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10 | printf("Misc Options:\n\n"); |
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11 | printf( |
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12 | " --demon - Bring the server into background after init\n" |
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13 | " --terminate - Terminate after last client quited\n" |
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14 | " --restart - Trys to stop an old instance and start a new with new settings\n" |
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15 | " --realtime - Trys to get realtime priority,\n" |
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16 | " give multible times for being more realtime\n" |
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17 | " --chroot DIR - chroots to the given dir\n" |
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18 | " --setgid - GroupID to the audio group as specified via -G\n" |
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19 | " --setuid - UserID to the audio user as specified via -U\n" |
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20 | ); |
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21 | |
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22 | printf("\nAudio Options:\n\n"); |
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23 | printf( |
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24 | " -R --rate RATE - Set server rate\n" |
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25 | " -B --bits BITS - Set server bits\n" |
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26 | " -C --chans CHANNELS - Set server channels\n" |
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27 | ); |
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28 | |
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29 | printf("\nDriver Options:\n\n"); |
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30 | printf(" -d --driver DRV - Set the driver, use '-d list' to get a list (default: %s)\n", ROAR_DRIVER_DEFAULT); |
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31 | printf(" -D --device DEV - Set the device\n"); |
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32 | printf(" -dO OPTS - Set output options\n"); |
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33 | |
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34 | printf("\nSource Options:\n\n"); |
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35 | printf(" -s --source DRV - Use DRV as input driver\n" |
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36 | " -S DEV - Use DEV as input device\n" |
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37 | " -sO OPTS - Use OPTS as input options\n" |
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38 | " -sP - Make souce as primary\n" |
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39 | ); |
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40 | |
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41 | printf("\nCodec Filter Options:\n\n"); |
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42 | printf(" --list-cf - List all codec filter\n" |
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43 | ); |
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44 | |
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45 | printf("\nServer Options:\n\n"); |
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46 | printf(" -t --tcp - Use TCP listen socket\n" |
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47 | " -u --unix - Use UNIX Domain listen socket (default)\n" |
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48 | " -p --port - TCP Port to bind to\n" |
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49 | " -b --bind - IP/Hostname to bind to\n" |
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50 | " -s --sock - Filename for UNIX Domain Socket\n" |
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51 | " -G GROUP - Sets the group for the UNIX Domain Socket, (default: %s)\n" |
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52 | " You need the permittions to change the GID\n" |
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53 | " -U USER - Sets the user for the UNIX Domain Socket, (default: do not set)\n" |
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54 | " You need the permittions to change the UID (normaly only root has)\n" |
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55 | " --no-listen - Do not listen for new clients (only usefull for relaing)\n" |
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56 | " --client-fh - Comunicate with a client over this handle\n" |
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57 | " (only usefull for relaing)\n", |
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58 | ROAR_DEFAULT_SOCKGRP |
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59 | ); |
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60 | // printf("\n Options:\n\n"); |
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61 | printf("\n"); |
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62 | } |
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63 | |
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64 | #define R_SETUID 1 |
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65 | #define R_SETGID 2 |
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66 | |
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67 | int main (int argc, char * argv[]) { |
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68 | int i; |
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69 | char * k; |
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70 | char user_sock[80] = {0}; |
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71 | struct roar_audio_info sa; |
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72 | int demon = 0; |
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73 | int realtime = 0; |
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74 | char * driver = getenv("ROAR_DRIVER"); |
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75 | char * device = getenv("ROAR_DEVICE"); |
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76 | char * opts = NULL; |
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77 | // char * server = ROAR_DEFAULT_SOCK_GLOBAL; |
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78 | int port = ROAR_DEFAULT_PORT; |
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79 | int drvid; |
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80 | char * s_dev = NULL; |
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81 | char * s_con = NULL; |
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82 | char * s_opt = NULL; |
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83 | int s_prim = 0; |
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84 | char * sock_grp = ROAR_DEFAULT_SOCKGRP; |
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85 | char * sock_user = NULL; |
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86 | char * chrootdir = NULL; |
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87 | int setids = 0; |
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88 | struct group * grp = NULL; |
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89 | struct passwd * pwd = NULL; |
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90 | struct servent * serv = NULL; |
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91 | DRIVER_USERDATA_T drvinst; |
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92 | struct roar_client * self = NULL; |
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93 | |
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94 | g_listen_socket = -1; |
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95 | g_standby = 0; |
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96 | |
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97 | sa.bits = ROAR_BITS_DEFAULT; |
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98 | sa.channels = ROAR_CHANNELS_DEFAULT; |
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99 | sa.rate = ROAR_RATE_DEFAULT; |
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100 | sa.codec = ROAR_CODEC_DEFAULT; |
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101 | |
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102 | g_sa = &sa; |
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103 | |
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104 | |
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105 | if ( getuid() != 0 && getenv("HOME") ) { |
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106 | snprintf(user_sock, 79, "%s/%s", getenv("HOME"), ROAR_DEFAULT_SOCK_USER); |
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107 | server = user_sock; |
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108 | } |
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109 | |
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110 | if ( getenv("ROAR_SERVER") != NULL ) |
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111 | server = getenv("ROAR_SERVER"); |
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112 | |
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113 | if ( clients_init() == -1 ) { |
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114 | ROAR_ERR("Can not init clients!"); |
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115 | return 1; |
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116 | } |
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117 | |
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118 | if ( streams_init() == -1 ) { |
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119 | ROAR_ERR("Can not init streams!"); |
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120 | return 1; |
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121 | } |
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122 | |
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123 | if ( (g_self_client = clients_new()) == -1 ) { |
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124 | ROAR_ERR("Can not create self client!"); |
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125 | return 1; |
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126 | } |
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127 | |
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128 | if ( sources_init() == -1 ) { |
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129 | ROAR_ERR("Can not init sources!"); |
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130 | return 1; |
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131 | } |
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132 | |
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133 | if ( (sources_set_client(g_self_client)) == -1 ) { |
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134 | ROAR_ERR("Can not init set source client!"); |
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135 | return 1; |
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136 | } |
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137 | |
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138 | for (i = 1; i < argc; i++) { |
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139 | k = argv[i]; |
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140 | |
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141 | if ( strcmp(k, "-h") == 0 || strcmp(k, "--help") == 0 ) { |
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142 | usage(); |
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143 | return 0; |
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144 | |
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145 | } else if ( strcmp(k, "--demon") == 0 ) { |
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146 | demon = 1; |
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147 | } else if ( strcmp(k, "--terminate") == 0 ) { |
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148 | g_terminate = 1; |
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149 | } else if ( strcmp(k, "--realtime") == 0 ) { |
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150 | realtime++; |
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151 | } else if ( strcmp(k, "--chroot") == 0 ) { |
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152 | chrootdir = argv[++i]; |
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153 | } else if ( strcmp(k, "--setgid") == 0 ) { |
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154 | setids |= R_SETGID; |
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155 | } else if ( strcmp(k, "--setuid") == 0 ) { |
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156 | setids |= R_SETUID; |
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157 | |
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158 | } else if ( strcmp(k, "--list-cf") == 0 ) { |
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159 | print_codecfilterlist(); |
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160 | return 0; |
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161 | |
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162 | } else if ( strcmp(k, "-R") == 0 || strcmp(k, "--rate") == 0 ) { |
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163 | sa.rate = atoi(argv[++i]); |
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164 | } else if ( strcmp(k, "-B") == 0 || strcmp(k, "--bits") == 0 ) { |
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165 | sa.bits = atoi(argv[++i]); |
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166 | } else if ( strcmp(k, "-C") == 0 || strcmp(k, "--chans") == 0 ) { |
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167 | sa.channels = atoi(argv[++i]); |
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168 | |
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169 | } else if ( strcmp(k, "-d") == 0 || strcmp(k, "--driver") == 0 ) { |
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170 | driver = argv[++i]; |
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171 | if ( strcmp(driver, "list") == 0 ) { |
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172 | print_driverlist(); |
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173 | } |
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174 | } else if ( strcmp(k, "-D") == 0 || strcmp(k, "--device") == 0 ) { |
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175 | device = argv[++i]; |
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176 | } else if ( strcmp(k, "-dO") == 0 ) { |
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177 | opts = argv[++i]; |
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178 | |
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179 | } else if ( strcmp(k, "-s") == 0 || strcmp(k, "--source") == 0 ) { |
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180 | k = argv[++i]; |
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181 | if ( sources_add(k, s_dev, s_con, s_opt, s_prim) == -1 ) { |
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182 | ROAR_ERR("main(*): adding source '%s' via '%s' failed!", s_dev, k); |
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183 | } |
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184 | s_opt = s_dev = s_con = NULL; |
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185 | s_prim = 0; |
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186 | } else if ( strcmp(k, "-S") == 0 ) { |
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187 | s_dev = argv[++i]; |
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188 | } else if ( strcmp(k, "-sO") == 0 ) { |
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189 | s_opt = argv[++i]; |
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190 | } else if ( strcmp(k, "-sC") == 0 ) { |
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191 | s_con = argv[++i]; |
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192 | } else if ( strcmp(k, "-sP") == 0 ) { |
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193 | s_prim = 1; |
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194 | |
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195 | } else if ( strcmp(k, "-p") == 0 || strcmp(k, "--port") == 0 ) { |
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196 | // This is only usefull in INET not UNIX mode. |
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197 | if ( *server == '/' ) |
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198 | server = ROAR_DEFAULT_HOST; |
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199 | |
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200 | errno = 0; |
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201 | if ( (port = atoi(argv[++i])) < 1 ) { |
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202 | if ( (serv = getservbyname(argv[i], "tcp")) == NULL ) { |
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203 | ROAR_ERR("Unknown service: %s: %s", argv[i], strerror(errno)); |
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204 | return 1; |
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205 | } |
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206 | // NOTE: we need to use ROAR_NET2HOST16() here even if s_port is of type int! |
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207 | ROAR_DBG("main(*): serv = {s_name='%s', s_aliases={...}, s_port=%i, s_proto='%s'}", |
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208 | serv->s_name, ROAR_NET2HOST16(serv->s_port), serv->s_proto); |
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209 | port = ROAR_NET2HOST16(serv->s_port); |
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210 | } |
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211 | } else if ( strcmp(k, "-b") == 0 || strcmp(k, "--bind") == 0 || strcmp(k, "-s") == 0 || strcmp(k, "--sock") == 0 ) { |
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212 | server = argv[++i]; |
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213 | } else if ( strcmp(k, "-t") == 0 ) { |
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214 | if ( *server == '/' ) |
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215 | server = ROAR_DEFAULT_HOST; |
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216 | } else if ( strcmp(k, "-u") == 0 ) { |
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217 | // ignore this case as it is the default behavor. |
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218 | } else if ( strcmp(k, "-G") == 0 ) { |
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219 | sock_grp = argv[++i]; |
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220 | } else if ( strcmp(k, "-U") == 0 ) { |
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221 | sock_user = argv[++i]; |
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222 | |
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223 | } else if ( strcmp(k, "--no-listen") == 0 ) { |
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224 | *server = 0; |
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225 | } else if ( strcmp(k, "--client-fh") == 0 ) { |
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226 | if ( clients_set_fh(clients_new(), atoi(argv[++i])) == -1 ) { |
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227 | ROAR_ERR("main(*): Can not set client's fh"); |
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228 | return 1; |
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229 | } |
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230 | |
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231 | } else { |
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232 | usage(); |
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233 | return 1; |
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234 | } |
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235 | |
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236 | } |
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237 | |
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238 | ROAR_DBG("Server config: rate=%i, bits=%i, chans=%i", sa.rate, sa.bits, sa.channels); |
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239 | |
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240 | if ( midi_init() == -1 ) |
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241 | ROAR_ERR("Can not initialize MIDI subsystem"); |
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242 | |
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243 | if ( *server != 0 ) { |
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244 | if ( (g_listen_socket = roar_socket_listen(ROAR_SOCKET_TYPE_UNKNOWN, server, port)) == -1 ) { |
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245 | if ( *server == '/' ) { |
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246 | if ( (i = roar_socket_connect(server, port)) != -1 ) { |
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247 | close(i); |
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248 | ROAR_ERR("Can not open listen socket!"); |
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249 | return 1; |
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250 | } else { |
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251 | unlink(server); |
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252 | if ( (g_listen_socket = roar_socket_listen(ROAR_SOCKET_TYPE_UNKNOWN, server, port)) == -1 ) { |
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253 | ROAR_ERR("Can not open listen socket!"); |
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254 | return 1; |
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255 | } |
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256 | } |
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257 | } else { |
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258 | ROAR_ERR("Can not open listen socket!"); |
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259 | return 1; |
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260 | } |
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261 | } |
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262 | |
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263 | if ( *server == '/' ) { |
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264 | if ( sock_user ) { |
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265 | if ( (pwd = getpwnam(sock_user)) == NULL ) { |
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266 | ROAR_ERR("Can not get UID for user %s: %s", sock_user, strerror(errno)); |
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267 | } |
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268 | } |
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269 | if ( (grp = getgrnam(sock_grp)) == NULL ) { |
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270 | ROAR_ERR("Can not get GID for group %s: %s", sock_grp, strerror(errno)); |
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271 | } else { |
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272 | if ( pwd ) { |
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273 | chown(server, pwd->pw_uid, grp->gr_gid); |
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274 | } else { |
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275 | chown(server, -1, grp->gr_gid); |
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276 | } |
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277 | if ( getuid() == 0 ) |
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278 | chmod(server, S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP); |
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279 | } |
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280 | } |
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281 | } |
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282 | |
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283 | if ( output_buffer_init(&sa) == -1 ) { |
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284 | ROAR_ERR("Can not init output buffer!"); |
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285 | return 1; |
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286 | } |
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287 | |
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288 | if ( driver_open(&drvinst, &drvid, driver, device, &sa) == -1 ) { |
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289 | ROAR_ERR("Can not open output driver!"); |
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290 | return 1; |
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291 | } |
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292 | |
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293 | if ( samples_init() == -1 ) { |
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294 | ROAR_ERR("Can not init samples!"); |
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295 | return 1; |
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296 | } |
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297 | |
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298 | |
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299 | signal(SIGINT, on_sig_int); |
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300 | signal(SIGCHLD, on_sig_chld); |
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301 | signal(SIGPIPE, SIG_IGN); // ignore broken pipes |
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302 | |
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303 | if ( realtime ) { |
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304 | #ifdef DEBUG |
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305 | ROAR_WARN("compiled with -DDEBUG but realtime is enabled: for real realtime support compiel without -DDEBUG"); |
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306 | #endif |
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307 | |
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308 | errno = 0; |
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309 | nice(-5*realtime); // -5 for each --realtime |
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310 | if ( errno ) |
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311 | ROAR_WARN("Can not decrease nice value by 5: %s", strerror(errno)); |
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312 | /* |
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313 | #ifdef __linux__ |
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314 | if ( ioprio_set(IOPRIO_WHO_PROCESS, getpid(), IOPRIO_PRIO_VALUE(IOPRIO_CLASS_BE, 0)) == -1 ) |
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315 | ROAR_WARN("Can not set io priority: %s", strerror(errno)); |
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316 | #endif |
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317 | */ |
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318 | } |
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319 | |
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320 | if ( setids & R_SETGID ) { |
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321 | if ( setgroups(0, (const gid_t *) NULL) == -1 ) { |
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322 | ROAR_ERR("Can not clear supplementary group IDs: %s", strerror(errno)); |
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323 | } |
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324 | if ( setgid(grp->gr_gid) == -1 ) { |
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325 | ROAR_ERR("Can not set GroupID: %s", strerror(errno)); |
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326 | } |
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327 | } |
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328 | |
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329 | |
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330 | clients_set_pid(g_self_client, getpid()); |
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331 | clients_set_uid(g_self_client, getuid()); |
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332 | clients_set_gid(g_self_client, getgid()); |
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333 | clients_get(g_self_client, &self); |
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334 | |
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335 | if ( self == NULL ) { |
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336 | ROAR_ERR("Can not get self client!"); |
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337 | return 1; |
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338 | } |
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339 | |
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340 | strcpy(self->name, "RoarAudio demon internal"); |
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341 | |
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342 | if ( demon ) { |
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343 | close(ROAR_STDIN ); |
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344 | close(ROAR_STDOUT); |
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345 | close(ROAR_STDERR); |
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346 | setsid(); |
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347 | if ( fork() ) |
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348 | _exit(0); |
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349 | } |
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350 | |
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351 | if (chrootdir) { |
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352 | if ( chroot(chrootdir) == -1 ) { |
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353 | ROAR_ERR("Can not chroot to %s: %s", chrootdir, strerror(errno)); |
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354 | return 2; |
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355 | } |
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356 | if ( chdir("/") == -1 ) { |
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357 | ROAR_ERR("Can not chdir to /: %s", strerror(errno)); |
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358 | return 2; |
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359 | } |
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360 | } |
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361 | |
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362 | if ( setids & R_SETUID ) { |
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363 | if ( !pwd || setuid(pwd->pw_uid) == -1 ) { |
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364 | ROAR_ERR("Can not set UserID: %s", strerror(errno)); |
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365 | return 3; |
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366 | } |
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367 | clients_set_uid(g_self_client, getuid()); |
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368 | } |
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369 | |
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370 | // start main loop... |
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371 | main_loop(drvid, drvinst, &sa); |
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372 | |
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373 | // clean up. |
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374 | clean_quit_prep(); |
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375 | driver_close(drvinst, drvid); |
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376 | output_buffer_free(); |
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377 | |
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378 | return 0; |
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379 | } |
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380 | |
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381 | void clean_quit_prep (void) { |
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382 | close(g_listen_socket); |
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383 | |
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384 | if ( *server == '/' ) |
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385 | unlink(server); |
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386 | |
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387 | |
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388 | sources_free(); |
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389 | streams_free(); |
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390 | clients_free(); |
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391 | midi_cb_stop(); // stop console beep |
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392 | midi_free(); |
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393 | } |
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394 | |
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395 | void clean_quit (void) { |
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396 | clean_quit_prep(); |
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397 | // driver_close(drvinst, drvid); |
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398 | // output_buffer_free(); |
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399 | exit(0); |
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400 | } |
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401 | |
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402 | //ll |
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