1 | //vio_stream.c: |
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2 | |
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3 | /* |
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4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2010-2014 |
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5 | * |
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6 | * This file is part of libroar a part of RoarAudio, |
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7 | * a cross-platform sound system for both, home and professional use. |
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8 | * See README for details. |
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9 | * |
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10 | * This file is free software; you can redistribute it and/or modify |
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11 | * it under the terms of the GNU General Public License version 3 |
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12 | * as published by the Free Software Foundation. |
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13 | * |
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14 | * libroar is distributed in the hope that it will be useful, |
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15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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17 | * GNU General Public License for more details. |
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18 | * |
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19 | * You should have received a copy of the GNU General Public License |
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20 | * along with this software; see the file COPYING. If not, write to |
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21 | * the Free Software Foundation, 51 Franklin Street, Fifth Floor, |
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22 | * Boston, MA 02110-1301, USA. |
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23 | * |
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24 | * NOTE for everyone want's to change something and send patches: |
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25 | * read README and HACKING! There a addition information on |
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26 | * the license of this document you need to read before you send |
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27 | * any patches. |
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28 | * |
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29 | * NOTE for uses of non-GPL (LGPL,...) software using libesd, libartsc |
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30 | * or libpulse*: |
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31 | * The libs libroaresd, libroararts and libroarpulse link this lib |
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32 | * and are therefore GPL. Because of this it may be illigal to use |
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33 | * them with any software that uses libesd, libartsc or libpulse*. |
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34 | */ |
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35 | |
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36 | #include "libroar.h" |
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37 | |
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38 | #ifdef ROAR_TARGET_WIN32 |
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39 | static inline int inet_aton(const char *s, struct in_addr *a) { |
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40 | int b0, b1, b2, b3; |
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41 | |
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42 | if (sscanf(s, "%d.%d.%d.%d", &b0, &b1, &b2, &b3) < 4) |
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43 | return 0; |
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44 | |
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45 | a->s_addr = inet_addr(s); |
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46 | |
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47 | return a->s_addr != INADDR_NONE; |
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48 | } |
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49 | #endif |
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50 | |
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51 | static ssize_t _vio_stream_read (struct roar_vio_calls * vio, void *buf, size_t count) { |
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52 | return roar_vio_read(roar_get_connection_vio2(vio->inst), buf, count); |
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53 | } |
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54 | |
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55 | static ssize_t _vio_stream_write (struct roar_vio_calls * vio, void *buf, size_t count) { |
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56 | return roar_vio_write(roar_get_connection_vio2(vio->inst), buf, count); |
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57 | } |
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58 | |
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59 | static roar_off_t _vio_stream_lseek (struct roar_vio_calls * vio, roar_off_t offset, int whence) { |
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60 | return roar_vio_lseek(roar_get_connection_vio2(vio->inst), offset, whence); |
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61 | } |
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62 | static int _vio_stream_sync (struct roar_vio_calls * vio) { |
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63 | return roar_vio_sync(roar_get_connection_vio2(vio->inst)); |
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64 | } |
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65 | static int _vio_stream_ctl (struct roar_vio_calls * vio, roar_vio_ctl_t cmd, void * data) { |
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66 | if (vio == NULL) { |
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67 | roar_err_set(ROAR_ERROR_FAULT); |
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68 | return -1; |
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69 | } |
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70 | |
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71 | if (cmd == -1) { |
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72 | roar_err_set(ROAR_ERROR_INVAL); |
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73 | return -1; |
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74 | } |
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75 | |
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76 | switch (cmd) { |
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77 | case ROAR_VIO_CTL_GET_NAME: |
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78 | if ( data == NULL ) { |
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79 | roar_err_set(ROAR_ERROR_FAULT); |
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80 | return -1; |
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81 | } |
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82 | |
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83 | *(char**)data = "stream"; |
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84 | return 0; |
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85 | break; |
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86 | case ROAR_VIO_CTL_GET_NEXT: |
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87 | *(struct roar_vio_calls **)data = roar_get_connection_vio2(vio->inst); |
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88 | return 0; |
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89 | break; |
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90 | case ROAR_VIO_CTL_SET_NEXT: |
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91 | roar_err_set(ROAR_ERROR_NOTSUP); |
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92 | return -1; |
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93 | break; |
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94 | case ROAR_VIO_CTL_NONBLOCK: |
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95 | return roar_vio_ctl(roar_get_connection_vio2(vio->inst), ROAR_VIO_CTL_NONBLOCK, data); |
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96 | break; |
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97 | } |
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98 | |
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99 | return roar_vio_ctl(roar_get_connection_vio2(vio->inst), cmd, data); |
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100 | } |
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101 | |
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102 | static int _vio_stream_close (struct roar_vio_calls * vio) { |
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103 | roar_vio_close(roar_get_connection_vio2(vio->inst)); |
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104 | roar_mm_free(vio->inst); |
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105 | |
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106 | return 0; |
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107 | } |
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108 | |
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109 | int roar_vio_simple_stream (struct roar_vio_calls * calls, |
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110 | uint32_t rate, uint32_t channels, uint32_t bits, uint32_t codec, |
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111 | const char * server, int dir, const char * name, int mixer) { |
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112 | struct roar_connection * con = NULL; |
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113 | struct roar_stream stream; |
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114 | int err; |
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115 | |
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116 | if ( calls == NULL ) { |
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117 | roar_err_set(ROAR_ERROR_FAULT); |
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118 | return -1; |
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119 | } |
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120 | |
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121 | if ( roar_stream_new(&stream, rate, channels, bits, codec) == -1 ) |
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122 | return -1; |
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123 | |
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124 | con = roar_mm_malloc(sizeof(struct roar_connection)); |
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125 | if ( con == NULL ) |
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126 | return -1; |
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127 | |
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128 | memset(con, 0, sizeof(struct roar_connection)); |
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129 | |
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130 | if ( roar_simple_connect(con, server, name) == -1 ) { |
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131 | roar_mm_free_noerror(con); |
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132 | return -1; |
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133 | } |
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134 | |
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135 | if ( roar_stream_connect(con, &stream, dir, mixer) == -1 ) { |
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136 | err = roar_error; |
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137 | roar_disconnect(con); |
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138 | roar_mm_free(con); |
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139 | roar_error = err; |
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140 | return -1; |
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141 | } |
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142 | |
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143 | if ( roar_stream_exec(con, &stream) == -1 ) { |
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144 | err = roar_error; |
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145 | roar_disconnect(con); |
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146 | roar_mm_free(con); |
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147 | roar_error = err; |
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148 | return -1; |
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149 | } |
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150 | |
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151 | roar_vio_clear_calls(calls); |
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152 | |
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153 | calls->inst = con; |
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154 | calls->read = _vio_stream_read; |
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155 | calls->write = _vio_stream_write; |
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156 | calls->lseek = _vio_stream_lseek; |
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157 | calls->sync = _vio_stream_sync; |
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158 | calls->ctl = _vio_stream_ctl; |
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159 | calls->close = _vio_stream_close; |
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160 | |
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161 | if ( dir == ROAR_DIR_PLAY ) { |
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162 | roar_vio_shutdown(calls, SHUT_RD); |
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163 | } else if ( dir == ROAR_DIR_MONITOR || dir == ROAR_DIR_RECORD ) { |
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164 | roar_vio_shutdown(calls, SHUT_WR); |
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165 | } |
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166 | |
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167 | return 0; |
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168 | } |
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169 | |
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170 | static inline int _roar_simple_new_stream_obj_try_select (struct roar_connection * con, struct roar_stream * s, uint32_t rate, uint32_t channels, uint32_t bits, uint32_t codec, int dir, int mixer, struct roar_sockname * sockname, int * fh, int * can_go_on) { |
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171 | #ifdef ROAR_HAVE_SELECT |
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172 | int confh; |
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173 | fd_set fds; |
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174 | struct timeval timeout = {10, 0}; |
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175 | struct roar_message mes; |
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176 | int listen; |
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177 | int port = 0; |
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178 | char file[80] = ""; |
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179 | char socketaddr[80]; |
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180 | ssize_t socketaddr_len = -1; |
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181 | #if defined(ROAR_HAVE_IPV4) || defined(ROAR_HAVE_LIBDNET) |
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182 | int opt = 1; |
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183 | #endif |
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184 | #ifdef ROAR_HAVE_LIBDNET |
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185 | static int count = 0; |
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186 | struct dn_naddr *binaddr; |
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187 | #endif |
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188 | #ifdef ROAR_HAVE_IPV4 |
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189 | struct sockaddr_in socket_addr; |
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190 | socklen_t len = sizeof(struct sockaddr_in); |
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191 | #else |
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192 | struct sockaddr socket_addr; |
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193 | socklen_t len = sizeof(struct sockaddr); |
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194 | #endif |
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195 | |
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196 | memset(&mes, 0, sizeof(mes)); |
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197 | memset(&socket_addr, 0, sizeof(socket_addr)); |
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198 | |
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199 | *can_go_on = 0; |
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200 | |
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201 | switch (sockname->type) { |
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202 | #ifdef ROAR_HAVE_LIBDNET |
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203 | case ROAR_SOCKET_TYPE_DECNET: |
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204 | if ( roar_socket_get_local_nodename() != NULL && (binaddr = getnodeadd()) != NULL ) { |
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205 | snprintf(socketaddr+3, sizeof(socketaddr)-3, "roar$TMP%04x%02x", getpid(), count++); |
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206 | snprintf(file, sizeof(file), "%s::%s", roar_socket_get_local_nodename(), socketaddr+3); |
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207 | memcpy(socketaddr, binaddr->a_addr, 2); |
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208 | socketaddr[2] = 0; // object 0. |
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209 | socketaddr_len = 3 + roar_mm_strlen(socketaddr+3); |
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210 | } else { |
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211 | return -1; |
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212 | } |
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213 | break; |
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214 | #endif |
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215 | #ifdef ROAR_HAVE_IPV4 |
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216 | case ROAR_SOCKET_TYPE_TCP: |
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217 | strncpy(file, sockname->addr, sizeof(file) - 1); |
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218 | roar_err_set(ROAR_ERROR_NONE); |
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219 | if ( inet_aton(sockname->addr, &socket_addr.sin_addr) == 0 ) { |
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220 | roar_err_update(); |
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221 | return -1; |
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222 | } |
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223 | memcpy(socketaddr, &socket_addr.sin_addr.s_addr, 4); |
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224 | socketaddr_len = 6; |
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225 | break; |
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226 | #endif |
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227 | default: |
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228 | roar_err_set(ROAR_ERROR_AFNOTSUP); |
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229 | return -1; |
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230 | break; |
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231 | } |
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232 | |
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233 | roar_libroar_nowarn(); |
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234 | if ( (listen = roar_socket_listen(sockname->type, file, port)) == -1 ) { |
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235 | roar_libroar_warn(); |
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236 | return -1; |
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237 | } |
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238 | roar_libroar_warn(); |
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239 | |
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240 | switch (sockname->type) { |
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241 | #ifdef ROAR_HAVE_IPV4 |
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242 | case ROAR_SOCKET_TYPE_TCP: |
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243 | setsockopt(listen, SOL_SOCKET, SO_REUSEADDR, (void*)&opt, sizeof(int)); |
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244 | |
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245 | len = sizeof(struct sockaddr_in); |
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246 | if ( getsockname(listen, (struct sockaddr *)&socket_addr, &len) == -1 ) { |
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247 | return -1; |
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248 | } |
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249 | ((uint16_t*)socketaddr)[3] = socket_addr.sin_port; |
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250 | port = ROAR_NET2HOST16(socket_addr.sin_port); |
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251 | ROAR_DBG("roar_simple_new_stream_obj(*): port=%i", port); |
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252 | break; |
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253 | #endif |
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254 | #ifdef ROAR_HAVE_LIBDNET |
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255 | case ROAR_SOCKET_TYPE_DECNET: |
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256 | setsockopt(listen, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(int)); |
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257 | break; |
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258 | #endif |
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259 | } |
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260 | |
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261 | if ( roar_stream_connect_to_advanced(con, s, 0, 1, 0, sockname->type, socketaddr_len, socketaddr, ROAR_PROTO_NONE, -1, NULL, 0, NULL) == -1 ) { |
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262 | close(listen); |
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263 | *can_go_on = 1; |
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264 | return -1; |
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265 | } else { |
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266 | |
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267 | FD_ZERO(&fds); |
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268 | FD_SET(listen, &fds); |
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269 | |
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270 | confh = roar_get_connection_fh(con); |
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271 | |
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272 | if ( confh != -1 ) { |
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273 | FD_SET(confh, &fds); |
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274 | } |
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275 | |
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276 | if ( select((confh > listen ? confh : listen) + 1, &fds, NULL, NULL, &timeout) < 1 ) { |
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277 | close(listen); |
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278 | |
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279 | // we don't need to check the content as we know it failed... |
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280 | if ( roar_recv_message(con, &mes, NULL) == -1 ) |
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281 | return -1; |
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282 | |
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283 | if ( roar_kick(con, ROAR_OT_STREAM, s->id) == -1 ) |
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284 | return -1; |
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285 | |
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286 | *can_go_on = 1; |
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287 | return -1; |
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288 | } |
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289 | |
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290 | if ( FD_ISSET(listen, &fds) ) { |
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291 | if ( (*fh = accept(listen, NULL, NULL)) != -1 ) { |
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292 | /* TODO: FIXME: XXX: errr, do we need any error handling here? */ |
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293 | } |
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294 | |
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295 | if ( roar_recv_message(con, &mes, NULL) == -1 ) { |
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296 | if ( *fh != -1 ) |
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297 | close(*fh); |
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298 | *fh = -1; |
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299 | } else if ( mes.cmd != ROAR_CMD_OK ) { |
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300 | if ( *fh != -1 ) |
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301 | close(*fh); |
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302 | *fh = -1; |
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303 | } |
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304 | } else { |
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305 | // we don't need to check the content as we know it failed... |
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306 | if ( roar_recv_message(con, &mes, NULL) == -1 ) { |
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307 | close(listen); |
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308 | return -1; |
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309 | } |
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310 | |
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311 | if ( mes.cmd != ROAR_CMD_OK ) { |
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312 | close(listen); |
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313 | if ( roar_kick(con, ROAR_OT_STREAM, s->id) == -1 ) |
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314 | return -1; |
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315 | |
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316 | *can_go_on = 1; |
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317 | return -1; |
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318 | } else { // seems like we have a positive reply. So we retry the listen socket: |
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319 | FD_ZERO(&fds); |
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320 | FD_SET(listen, &fds); |
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321 | timeout.tv_sec = 0; |
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322 | timeout.tv_usec = 128000L; |
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323 | *fh = -1; |
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324 | if ( select(listen + 1, &fds, NULL, NULL, &timeout) > 0 ) { |
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325 | if ( (*fh = accept(listen, NULL, NULL)) == -1 ) { |
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326 | close(listen); |
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327 | if ( roar_kick(con, ROAR_OT_STREAM, s->id) == -1 ) |
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328 | return -1; |
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329 | |
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330 | *can_go_on = 1; |
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331 | return -1; |
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332 | } |
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333 | } |
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334 | } |
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335 | } |
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336 | close(listen); |
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337 | return 0; |
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338 | } |
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339 | |
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340 | #else |
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341 | roar_err_set(ROAR_ERROR_NOSYS); |
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342 | return -1; |
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343 | #endif |
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344 | } |
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345 | |
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346 | static int _roar_simple_new_stream_obj (struct roar_connection * con, struct roar_stream * s, uint32_t rate, uint32_t channels, uint32_t bits, uint32_t codec, int dir, int mixer) { |
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347 | struct roar_libroar_config * config = roar_libroar_get_config(); |
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348 | int fh = -1; |
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349 | #ifdef ROAR_HAVE_UNIX |
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350 | int socks[2]; // for socketpair() |
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351 | #endif |
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352 | struct roar_sockname sockname; |
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353 | int can_go_on = 0; |
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354 | |
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355 | ROAR_DBG("_roar_simple_new_stream_obj(con=%p, s=%p, rate=%i, channels=%i, bits=%i, codec=%i, dir=%i, mixer=%i) = ?", con, s, (int)rate, (int)channels, (int)bits, (int)codec, dir, mixer); |
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356 | |
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357 | if ( config != NULL ) { |
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358 | if ( config->workaround.workarounds & ROAR_LIBROAR_CONFIG_WAS_USE_EXECED ) { |
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359 | return roar_simple_new_stream_attachexeced_obj(con, s, rate, channels, bits, codec, dir, mixer); |
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360 | } |
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361 | } |
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362 | |
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363 | ROAR_DBG("_roar_simple_new_stream_obj(con=%p, s=%p, rate=%i, channels=%i, bits=%i, codec=%i, dir=%i, mixer=%i) = ?", con, s, (int)rate, (int)channels, (int)bits, (int)codec, dir, mixer); |
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364 | |
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365 | roar_libroar_nowarn(); |
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366 | if ( roar_vio_ctl(roar_get_connection_vio2(con), ROAR_VIO_CTL_GET_SOCKNAME, &sockname) == -1 ) { |
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367 | roar_libroar_warn(); |
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368 | #ifdef ROAR_OS_OPENBSD |
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369 | sockname.type = ROAR_SOCKET_TYPE_UNIX; |
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370 | #else |
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371 | ROAR_DBG("_roar_simple_new_stream_obj(con=%p, s=%p, rate=%i, channels=%i, bits=%i, codec=%i, dir=%i, mixer=%i) = -1", con, s, (int)rate, (int)channels, (int)bits, (int)codec, dir, mixer); |
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372 | |
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373 | return -1; |
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374 | #endif |
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375 | } |
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376 | roar_libroar_warn(); |
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377 | |
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378 | ROAR_DBG("_roar_simple_new_stream_obj(con=%p, s=%p, rate=%i, channels=%i, bits=%i, codec=%i, dir=%i, mixer=%i) = ?", con, s, (int)rate, (int)channels, (int)bits, (int)codec, dir, mixer); |
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379 | |
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380 | if ( roar_stream_new(s, rate, channels, bits, codec) == -1 ) { |
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381 | return -1; |
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382 | } |
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383 | |
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384 | if ( roar_stream_connect(con, s, dir, mixer) == -1 ) { |
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385 | return -1; |
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386 | } |
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387 | |
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388 | if ( sockname.type != ROAR_SOCKET_TYPE_UNIX ) { |
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389 | do { |
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390 | if ( _roar_simple_new_stream_obj_try_select(con, s, |
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391 | rate, channels, bits, codec, dir, mixer, |
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392 | &sockname, &fh, &can_go_on) != -1 ) |
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393 | break; |
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394 | if ( !can_go_on ) |
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395 | return -1; |
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396 | |
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397 | return roar_simple_new_stream_attachexeced_obj(con, s, rate, channels, bits, codec, dir, mixer); |
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398 | } while (0); |
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399 | } else { // this is sockname.type == ROAR_SOCKET_TYPE_UNIX |
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400 | #ifdef ROAR_HAVE_UNIX |
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401 | if ( socketpair(AF_UNIX, SOCK_STREAM, 0, socks) == -1 ) { |
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402 | roar_kick(con, ROAR_OT_STREAM, s->id); // we do not need to check for errors |
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403 | // as we return -1 in both whys |
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404 | return -1; |
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405 | } |
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406 | |
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407 | if ( roar_stream_passfh(con, s, socks[0]) == -1 ) { |
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408 | roar_kick(con, ROAR_OT_STREAM, s->id); // we do not need to check for errors |
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409 | // as we return -1 anyway. |
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410 | close(socks[0]); |
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411 | close(socks[1]); |
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412 | |
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413 | return roar_simple_new_stream_attachexeced_obj(con, s, rate, channels, bits, codec, dir, mixer); |
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414 | } |
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415 | |
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416 | close(socks[0]); |
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417 | fh = socks[1]; |
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418 | #else |
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419 | roar_kick(con, ROAR_OT_STREAM, s->id); |
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420 | return -1; |
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421 | #endif |
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422 | } |
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423 | |
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424 | if ( fh != -1 ) { |
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425 | if ( dir == ROAR_DIR_PLAY ) { |
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426 | (void)ROAR_SHUTDOWN(fh, SHUT_RD); |
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427 | } else if ( dir == ROAR_DIR_MONITOR || dir == ROAR_DIR_RECORD ) { |
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428 | (void)ROAR_SHUTDOWN(fh, SHUT_WR); |
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429 | } |
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430 | } |
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431 | |
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432 | s->fh = fh; |
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433 | |
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434 | ROAR_DBG("_roar_simple_new_stream_obj(con=%p, s=%p, rate=%i, channels=%i, bits=%i, codec=%i, dir=%i, mixer=%i) = %i", con, s, (int)rate, (int)channels, (int)bits, (int)codec, dir, mixer, fh); |
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435 | return fh; |
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436 | } |
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437 | |
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438 | int roar_vio_simple_new_stream_obj (struct roar_vio_calls * calls, |
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439 | struct roar_connection * con, |
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440 | struct roar_stream * s, |
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441 | uint32_t rate, uint32_t channels, uint32_t bits, uint32_t codec, |
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442 | int dir, int mixer) { |
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443 | struct roar_stream stream; |
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444 | int fh; |
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445 | |
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446 | ROAR_DBG("roar_vio_simple_new_stream_obj(*) = ?"); |
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447 | |
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448 | if ( calls == NULL ) { |
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449 | roar_err_set(ROAR_ERROR_FAULT); |
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450 | return -1; |
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451 | } |
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452 | |
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453 | if ( s == NULL ) |
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454 | s = &stream; |
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455 | |
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456 | if ( (fh = _roar_simple_new_stream_obj(con, s, rate, channels, bits, codec, dir, mixer)) == -1 ) { |
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457 | ROAR_DBG("roar_vio_simple_new_stream_obj(*) = -1"); |
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458 | return -1; |
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459 | } |
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460 | |
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461 | ROAR_DBG("roar_vio_simple_new_stream_obj(*): fh=%i", fh); |
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462 | |
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463 | return roar_vio_open_fh_socket(calls, fh); |
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464 | } |
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465 | |
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466 | //ll |
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