[0] | 1 | //network.c: |
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| 2 | |
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[668] | 3 | /* |
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[3358] | 4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2008-2010 |
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[668] | 5 | * |
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| 6 | * This file is part of roard 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 | * RoarAudio 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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[3517] | 21 | * the Free Software Foundation, 51 Franklin Street, Fifth Floor, |
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| 22 | * Boston, MA 02110-1301, USA. |
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[668] | 23 | * |
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| 24 | */ |
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| 25 | |
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[0] | 26 | #include "roard.h" |
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| 27 | |
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[1494] | 28 | #ifdef ROAR_SUPPORT_LISTEN |
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| 29 | |
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[1055] | 30 | #ifdef ROAR_BROKEN_PEERCRED |
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| 31 | #undef SO_PEERCRED |
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| 32 | #endif |
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| 33 | |
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[1484] | 34 | #ifdef ROAR_HAVE_SELECT |
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| 35 | #define _CAN_OPERATE |
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| 36 | #endif |
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| 37 | |
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[0] | 38 | int net_check_listen (void) { |
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[1484] | 39 | #ifdef _CAN_OPERATE |
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[0] | 40 | int r; |
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| 41 | fd_set sl; |
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| 42 | struct timeval tv; |
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[2530] | 43 | int i; |
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| 44 | int max_fh = -1; |
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[0] | 45 | |
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| 46 | FD_ZERO(&sl); |
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[2530] | 47 | |
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| 48 | for (i = 0; i < ROAR_MAX_LISTEN_SOCKETS; i++) { |
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[3129] | 49 | if ( g_listen[i].socket != -1 ) { |
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| 50 | if ( g_listen[i].socket > max_fh ) |
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| 51 | max_fh = g_listen[i].socket; |
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[2530] | 52 | |
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[3129] | 53 | FD_SET(g_listen[i].socket, &sl); |
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[2530] | 54 | } |
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| 55 | } |
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| 56 | |
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| 57 | if ( max_fh == -1 ) |
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| 58 | return 0; |
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[0] | 59 | |
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| 60 | tv.tv_sec = 0; |
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| 61 | tv.tv_usec = 1; |
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| 62 | |
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[2530] | 63 | if ((r = select(max_fh + 1, &sl, NULL, NULL, &tv)) > 0) { |
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[0] | 64 | ROAR_DBG("net_check_listen(void): We have a connection!"); |
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[2530] | 65 | for (i = 0; i < ROAR_MAX_LISTEN_SOCKETS; i++) { |
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[3129] | 66 | if ( g_listen[i].socket != -1 ) { |
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| 67 | if ( FD_ISSET(g_listen[i].socket, &sl) ) { |
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[3253] | 68 | if ( net_get_new_client(&(g_listen[i])) == -1 ) |
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[2530] | 69 | return -1; |
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| 70 | } |
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| 71 | } |
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| 72 | } |
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[0] | 73 | } |
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| 74 | |
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| 75 | return r; |
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[1484] | 76 | #else |
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| 77 | return -1; |
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| 78 | #endif |
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[0] | 79 | } |
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| 80 | |
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[1484] | 81 | #ifdef _CAN_OPERATE |
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[3253] | 82 | int net_get_new_client (struct roard_listen * lsock) { |
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[0] | 83 | int fh; |
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| 84 | int client; |
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[1183] | 85 | struct roar_client * c; |
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[490] | 86 | #ifdef SO_PEERCRED |
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| 87 | struct ucred cred; |
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| 88 | socklen_t cred_len = sizeof(cred); |
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| 89 | #endif |
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[2815] | 90 | struct roar_vio_calls vio; |
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| 91 | struct sockaddr_storage addr; |
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| 92 | socklen_t addrlen = sizeof(addr); |
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[0] | 93 | |
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[3253] | 94 | fh = accept(lsock->socket, (struct sockaddr*)&addr, &addrlen); |
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[0] | 95 | |
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| 96 | ROAR_DBG("net_get_new_client(void): fh = %i", fh); |
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| 97 | |
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[3684] | 98 | #ifndef ROAR_WITHOUT_DCOMP_EMUL_RSOUND |
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| 99 | if ( lsock->proto == ROAR_PROTO_RSOUND ) { |
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| 100 | client = emul_rsound_on_connect(fh, lsock); |
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| 101 | switch (client) { |
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| 102 | case -1: return -1; break; |
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| 103 | case -2: return 0; break; |
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| 104 | default: // TODO: write error handling |
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| 105 | clients_get(client, &c); |
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| 106 | fh = c->fh; |
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| 107 | break; |
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| 108 | } |
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| 109 | } else { |
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| 110 | #endif |
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| 111 | |
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[0] | 112 | client = clients_new(); |
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| 113 | |
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| 114 | if ( clients_set_fh(client, fh) == -1 ) { |
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| 115 | ROAR_ERR("net_get_new_client(void): Can not set client's fh"); |
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| 116 | |
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| 117 | clients_delete(client); |
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| 118 | close(fh); |
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| 119 | |
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| 120 | ROAR_DBG("net_get_new_client(void) = -1"); |
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| 121 | return -1; |
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| 122 | } |
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[3684] | 123 | #ifndef ROAR_WITHOUT_DCOMP_EMUL_RSOUND |
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| 124 | } |
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| 125 | #endif |
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[0] | 126 | |
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[2820] | 127 | if ( clients_get(client, &c) != -1 ) { |
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[490] | 128 | #ifdef SO_PEERCRED |
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| 129 | if (getsockopt(fh, SOL_SOCKET, SO_PEERCRED, &cred, &cred_len) != -1) { |
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| 130 | if ( cred.pid != 0 ) { |
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| 131 | c->pid = cred.pid; |
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| 132 | c->uid = cred.uid; |
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| 133 | c->gid = cred.gid; |
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| 134 | } |
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| 135 | } else { |
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| 136 | ROAR_DBG("req_on_identify(): Can't get creds via SO_PEERCRED: %s", strerror(errno)); |
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| 137 | } |
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[1182] | 138 | #elif defined(ROAR_HAVE_GETPEEREID) |
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| 139 | if (getpeereid(fh, &(c->uid), &(c->gid)) == -1) { |
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| 140 | ROAR_DBG("req_on_identify(): Can't get creds via getpeereid(): %s", strerror(errno)); |
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| 141 | } |
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[490] | 142 | #endif |
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| 143 | |
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[2820] | 144 | if ( roar_nnode_free(&(c->nnode)) == -1 ) |
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| 145 | return -1; |
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[2815] | 146 | |
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[2820] | 147 | if ( roar_nnode_new_from_sockaddr(&(c->nnode), (struct sockaddr*)&addr, addrlen) == -1 ) |
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| 148 | return -1; |
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| 149 | } |
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[2815] | 150 | |
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[3253] | 151 | ROAR_DBG("net_get_new_client(*): proto=0x%.4x", lsock->proto); |
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[2530] | 152 | |
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[3253] | 153 | if ( clients_set_proto(client, lsock->proto) == -1 ) { |
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| 154 | ROAR_WARN("net_get_new_client(*): Setting proto(0x%.4x) of client %i failed.", lsock->proto, client); |
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[2529] | 155 | return -1; |
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[2789] | 156 | } |
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[2529] | 157 | |
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[3253] | 158 | switch (lsock->proto) { |
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[2789] | 159 | case ROAR_PROTO_ROARAUDIO: |
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| 160 | // nothing needed to be done here |
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| 161 | break; |
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[2545] | 162 | #ifndef ROAR_WITHOUT_DCOMP_EMUL_ESD |
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[2791] | 163 | #ifdef ROAR_HAVE_H_ESD |
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[2530] | 164 | case ROAR_PROTO_ESOUND: |
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[2789] | 165 | ROAR_DBG("net_get_new_client(*): execing ESD CONNECT command"); |
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| 166 | |
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| 167 | if ( roar_vio_open_fh_socket(&vio, fh) == -1 ) |
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[2530] | 168 | return -1; |
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[2529] | 169 | |
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[2789] | 170 | ROAR_DBG("net_get_new_client(*): creating VIO OK"); |
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| 171 | |
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[2530] | 172 | if ( emul_esd_exec_command(client, ESD_PROTO_CONNECT, &vio) == -1 ) |
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| 173 | return -1; |
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[2789] | 174 | |
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| 175 | ROAR_DBG("net_get_new_client(*): CONNECT execed sucessfully"); |
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[2530] | 176 | break; |
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[2545] | 177 | #endif |
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[3359] | 178 | #endif |
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[3603] | 179 | #ifndef ROAR_WITHOUT_DCOMP_EMUL_SIMPLE |
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[3253] | 180 | case ROAR_PROTO_SIMPLE: |
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[3255] | 181 | if ( emul_simple_on_connect(client, lsock) == -1 ) |
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| 182 | return -1; |
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[3253] | 183 | break; |
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[3596] | 184 | #endif |
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[3684] | 185 | #ifndef ROAR_WITHOUT_DCOMP_EMUL_RSOUND |
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| 186 | case ROAR_PROTO_RSOUND: // nothing to do here. |
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| 187 | break; |
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| 188 | #endif |
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[2789] | 189 | default: |
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| 190 | // OS independiend code to close the socket: |
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| 191 | if ( roar_vio_open_fh_socket(&vio, fh) == -1 ) |
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| 192 | return -1; |
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| 193 | roar_vio_close(&vio); |
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| 194 | return -1; |
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| 195 | break; |
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[2530] | 196 | } |
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[2529] | 197 | |
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[0] | 198 | // close(fh); |
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| 199 | |
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| 200 | return 0; |
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| 201 | } |
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[1484] | 202 | #endif |
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[0] | 203 | |
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[1494] | 204 | #endif |
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| 205 | |
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[0] | 206 | //ll |
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