[0431ea1] | 1 | /********************************************************************\ |
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| 2 | * BitlBee -- An IRC to other IM-networks gateway * |
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| 3 | * * |
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[54879ab] | 4 | * Copyright 2002-2006 Wilmer van der Gaast and others * |
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[0431ea1] | 5 | \********************************************************************/ |
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| 6 | |
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| 7 | /* IPC - communication between BitlBee processes */ |
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| 8 | |
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| 9 | /* |
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| 10 | This program 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 as published by |
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| 12 | the Free Software Foundation; either version 2 of the License, or |
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| 13 | (at your option) any later version. |
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| 14 | |
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| 15 | This program is distributed in the hope that it will be useful, |
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| 16 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 18 | GNU General Public License for more details. |
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| 19 | |
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| 20 | You should have received a copy of the GNU General Public License with |
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| 21 | the Debian GNU/Linux distribution in /usr/share/common-licenses/GPL; |
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| 22 | if not, write to the Free Software Foundation, Inc., 59 Temple Place, |
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| 23 | Suite 330, Boston, MA 02111-1307 USA |
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| 24 | */ |
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| 25 | |
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| 26 | #define BITLBEE_CORE |
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| 27 | #include "bitlbee.h" |
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| 28 | #include "ipc.h" |
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| 29 | #include "commands.h" |
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[6dff9d4] | 30 | #ifndef _WIN32 |
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| 31 | #include <sys/un.h> |
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| 32 | #endif |
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[0431ea1] | 33 | |
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| 34 | GSList *child_list = NULL; |
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[74c119d] | 35 | |
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[f73b969] | 36 | static void ipc_master_cmd_client( irc_t *data, char **cmd ) |
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[2face62] | 37 | { |
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[5e713f6] | 38 | /* Normally data points at an irc_t block, but for the IPC master |
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| 39 | this is different. We think this scary cast is better than |
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| 40 | creating a new command_t structure, just to make the compiler |
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| 41 | happy. */ |
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[2face62] | 42 | struct bitlbee_child *child = (void*) data; |
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| 43 | |
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[54879ab] | 44 | if( child && cmd[1] ) |
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[bd9b00f] | 45 | { |
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| 46 | child->host = g_strdup( cmd[1] ); |
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| 47 | child->nick = g_strdup( cmd[2] ); |
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| 48 | child->realname = g_strdup( cmd[3] ); |
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| 49 | } |
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[2face62] | 50 | |
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[54879ab] | 51 | if( g_strcasecmp( cmd[0], "CLIENT" ) == 0 ) |
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| 52 | ipc_to_children_str( "OPERMSG :Client connecting (PID=%d): %s@%s (%s)\r\n", |
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[52744f8] | 53 | (int) ( child ? child->pid : -1 ), cmd[2], cmd[1], cmd[3] ); |
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[2face62] | 54 | } |
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| 55 | |
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[f73b969] | 56 | static void ipc_master_cmd_die( irc_t *data, char **cmd ) |
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[0431ea1] | 57 | { |
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[74c119d] | 58 | if( global.conf->runmode == RUNMODE_FORKDAEMON ) |
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| 59 | ipc_to_children_str( "DIE\r\n" ); |
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| 60 | |
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[ba9edaa] | 61 | bitlbee_shutdown( NULL, -1, 0 ); |
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[0431ea1] | 62 | } |
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| 63 | |
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[565a1ea] | 64 | static void ipc_master_cmd_deaf( irc_t *data, char **cmd ) |
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| 65 | { |
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| 66 | if( global.conf->runmode == RUNMODE_DAEMON ) |
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| 67 | { |
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| 68 | b_event_remove( global.listen_watch_source_id ); |
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| 69 | close( global.listen_socket ); |
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| 70 | |
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| 71 | global.listen_socket = global.listen_watch_source_id = -1; |
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| 72 | |
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| 73 | ipc_to_children_str( "OPERMSG :Closed listening socket, waiting " |
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| 74 | "for all users to disconnect." ); |
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| 75 | } |
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| 76 | else |
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| 77 | { |
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| 78 | ipc_to_children_str( "OPERMSG :The DEAF command only works in " |
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| 79 | "normal daemon mode. Try DIE instead." ); |
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| 80 | } |
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| 81 | } |
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| 82 | |
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[f73b969] | 83 | void ipc_master_cmd_rehash( irc_t *data, char **cmd ) |
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[0431ea1] | 84 | { |
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[f4a5940] | 85 | runmode_t oldmode; |
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| 86 | |
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| 87 | oldmode = global.conf->runmode; |
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| 88 | |
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| 89 | g_free( global.conf ); |
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| 90 | global.conf = conf_load( 0, NULL ); |
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| 91 | |
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| 92 | if( global.conf->runmode != oldmode ) |
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| 93 | { |
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| 94 | log_message( LOGLVL_WARNING, "Can't change RunMode setting at runtime, restoring original setting" ); |
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| 95 | global.conf->runmode = oldmode; |
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| 96 | } |
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| 97 | |
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| 98 | if( global.conf->runmode == RUNMODE_FORKDAEMON ) |
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| 99 | ipc_to_children( cmd ); |
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[0431ea1] | 100 | } |
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| 101 | |
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[54879ab] | 102 | void ipc_master_cmd_restart( irc_t *data, char **cmd ) |
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| 103 | { |
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| 104 | if( global.conf->runmode != RUNMODE_FORKDAEMON ) |
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| 105 | { |
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| 106 | /* Tell child that this is unsupported. */ |
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| 107 | return; |
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| 108 | } |
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| 109 | |
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| 110 | global.restart = -1; |
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[ba9edaa] | 111 | bitlbee_shutdown( NULL, -1, 0 ); |
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[54879ab] | 112 | } |
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| 113 | |
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[6c2404e] | 114 | void ipc_master_cmd_identify( irc_t *data, char **cmd ) |
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| 115 | { |
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| 116 | struct bitlbee_child *child = (void*) data, *old = NULL; |
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| 117 | GSList *l; |
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| 118 | |
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| 119 | if( strcmp( child->nick, cmd[1] ) != 0 ) |
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| 120 | return; |
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| 121 | |
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| 122 | g_free( child->password ); |
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| 123 | child->password = g_strdup( cmd[2] ); |
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| 124 | |
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| 125 | for( l = child_list; l; l = l->next ) |
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| 126 | { |
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| 127 | old = l->data; |
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| 128 | if( nick_cmp( old->nick, child->nick ) == 0 && child != old && |
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| 129 | old->password && strcmp( old->password, child->password ) ) |
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| 130 | break; |
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| 131 | } |
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| 132 | |
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| 133 | if( old == NULL ) |
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| 134 | return; |
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| 135 | |
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| 136 | child->to_child = old; |
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| 137 | } |
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| 138 | |
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[0431ea1] | 139 | static const command_t ipc_master_commands[] = { |
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[2face62] | 140 | { "client", 3, ipc_master_cmd_client, 0 }, |
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[54879ab] | 141 | { "hello", 0, ipc_master_cmd_client, 0 }, |
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[0431ea1] | 142 | { "die", 0, ipc_master_cmd_die, 0 }, |
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[565a1ea] | 143 | { "deaf", 0, ipc_master_cmd_deaf, 0 }, |
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[f4a5940] | 144 | { "wallops", 1, NULL, IPC_CMD_TO_CHILDREN }, |
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[dfc8a46] | 145 | { "wall", 1, NULL, IPC_CMD_TO_CHILDREN }, |
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[2face62] | 146 | { "opermsg", 1, NULL, IPC_CMD_TO_CHILDREN }, |
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[f4a5940] | 147 | { "rehash", 0, ipc_master_cmd_rehash, 0 }, |
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[48721c3] | 148 | { "kill", 2, NULL, IPC_CMD_TO_CHILDREN }, |
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[54879ab] | 149 | { "restart", 0, ipc_master_cmd_restart, 0 }, |
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[6c2404e] | 150 | { "identify", 2, ipc_master_cmd_identify, 0 }, |
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[0431ea1] | 151 | { NULL } |
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| 152 | }; |
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| 153 | |
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[74c119d] | 154 | |
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[f73b969] | 155 | static void ipc_child_cmd_die( irc_t *irc, char **cmd ) |
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[74c119d] | 156 | { |
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[87de505] | 157 | irc_abort( irc, 0, "Shutdown requested by operator" ); |
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[74c119d] | 158 | } |
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| 159 | |
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[f73b969] | 160 | static void ipc_child_cmd_wallops( irc_t *irc, char **cmd ) |
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[0431ea1] | 161 | { |
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[3af70b0] | 162 | if( !( irc->status & USTATUS_LOGGED_IN ) ) |
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[f73b969] | 163 | return; |
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[daa9e02] | 164 | |
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[0431ea1] | 165 | if( strchr( irc->umode, 'w' ) ) |
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[3ddb7477] | 166 | irc_write( irc, ":%s WALLOPS :%s", irc->root->host, cmd[1] ); |
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[e0ca412] | 167 | } |
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| 168 | |
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[dfc8a46] | 169 | static void ipc_child_cmd_wall( irc_t *irc, char **cmd ) |
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[e0ca412] | 170 | { |
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[3af70b0] | 171 | if( !( irc->status & USTATUS_LOGGED_IN ) ) |
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[f73b969] | 172 | return; |
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[daa9e02] | 173 | |
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[74c119d] | 174 | if( strchr( irc->umode, 's' ) ) |
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[3ddb7477] | 175 | irc_write( irc, ":%s NOTICE %s :%s", irc->root->host, irc->user->nick, cmd[1] ); |
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[0431ea1] | 176 | } |
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| 177 | |
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[f73b969] | 178 | static void ipc_child_cmd_opermsg( irc_t *irc, char **cmd ) |
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[2face62] | 179 | { |
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[3af70b0] | 180 | if( !( irc->status & USTATUS_LOGGED_IN ) ) |
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[f73b969] | 181 | return; |
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[2face62] | 182 | |
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| 183 | if( strchr( irc->umode, 'o' ) ) |
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[3ddb7477] | 184 | irc_write( irc, ":%s NOTICE %s :*** OperMsg *** %s", irc->root->host, irc->user->nick, cmd[1] ); |
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[2face62] | 185 | } |
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| 186 | |
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[f73b969] | 187 | static void ipc_child_cmd_rehash( irc_t *irc, char **cmd ) |
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[f4a5940] | 188 | { |
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| 189 | runmode_t oldmode; |
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| 190 | |
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| 191 | oldmode = global.conf->runmode; |
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| 192 | |
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| 193 | g_free( global.conf ); |
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| 194 | global.conf = conf_load( 0, NULL ); |
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| 195 | |
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| 196 | global.conf->runmode = oldmode; |
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| 197 | } |
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| 198 | |
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[f73b969] | 199 | static void ipc_child_cmd_kill( irc_t *irc, char **cmd ) |
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[48721c3] | 200 | { |
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[3af70b0] | 201 | if( !( irc->status & USTATUS_LOGGED_IN ) ) |
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[f73b969] | 202 | return; |
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[48721c3] | 203 | |
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[3ddb7477] | 204 | if( nick_cmp( cmd[1], irc->user->nick ) != 0 ) |
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[f73b969] | 205 | return; /* It's not for us. */ |
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[48721c3] | 206 | |
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[3ddb7477] | 207 | irc_write( irc, ":%s!%s@%s KILL %s :%s", irc->root->nick, irc->root->nick, irc->root->host, irc->user->nick, cmd[2] ); |
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[f73b969] | 208 | irc_abort( irc, 0, "Killed by operator: %s", cmd[2] ); |
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[48721c3] | 209 | } |
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| 210 | |
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[54879ab] | 211 | static void ipc_child_cmd_hello( irc_t *irc, char **cmd ) |
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| 212 | { |
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[3af70b0] | 213 | if( !( irc->status & USTATUS_LOGGED_IN ) ) |
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[54879ab] | 214 | ipc_to_master_str( "HELLO\r\n" ); |
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| 215 | else |
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[3ddb7477] | 216 | ipc_to_master_str( "HELLO %s %s :%s\r\n", irc->user->host, irc->user->nick, irc->user->fullname ); |
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[54879ab] | 217 | } |
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| 218 | |
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[0431ea1] | 219 | static const command_t ipc_child_commands[] = { |
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[74c119d] | 220 | { "die", 0, ipc_child_cmd_die, 0 }, |
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| 221 | { "wallops", 1, ipc_child_cmd_wallops, 0 }, |
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[dfc8a46] | 222 | { "wall", 1, ipc_child_cmd_wall, 0 }, |
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[2face62] | 223 | { "opermsg", 1, ipc_child_cmd_opermsg, 0 }, |
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[48721c3] | 224 | { "rehash", 0, ipc_child_cmd_rehash, 0 }, |
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| 225 | { "kill", 2, ipc_child_cmd_kill, 0 }, |
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[54879ab] | 226 | { "hello", 0, ipc_child_cmd_hello, 0 }, |
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[0431ea1] | 227 | { NULL } |
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| 228 | }; |
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| 229 | |
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[6c2404e] | 230 | static gboolean ipc_send_fd( int fd, int send_fd ); |
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| 231 | |
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| 232 | gboolean ipc_child_identify( irc_t *irc ) |
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| 233 | { |
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| 234 | if( global.conf->runmode == RUNMODE_FORKDAEMON ) |
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| 235 | { |
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| 236 | if( !ipc_send_fd( global.listen_socket, irc->fd ) ) |
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| 237 | ipc_child_disable(); |
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| 238 | |
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| 239 | ipc_to_master_str( "IDENTIFY %s :%s\r\n", irc->user->nick, irc->password ); |
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| 240 | |
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| 241 | return TRUE; |
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| 242 | } |
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| 243 | else |
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| 244 | return FALSE; |
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| 245 | } |
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[74c119d] | 246 | |
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[0431ea1] | 247 | static void ipc_command_exec( void *data, char **cmd, const command_t *commands ) |
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| 248 | { |
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[f1d38f2] | 249 | int i, j; |
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[0431ea1] | 250 | |
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| 251 | if( !cmd[0] ) |
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| 252 | return; |
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| 253 | |
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| 254 | for( i = 0; commands[i].command; i ++ ) |
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| 255 | if( g_strcasecmp( commands[i].command, cmd[0] ) == 0 ) |
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| 256 | { |
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[f1d38f2] | 257 | /* There is no typo in this line: */ |
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| 258 | for( j = 1; cmd[j]; j ++ ); j --; |
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| 259 | |
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| 260 | if( j < commands[i].required_parameters ) |
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| 261 | break; |
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| 262 | |
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[f4a5940] | 263 | if( commands[i].flags & IPC_CMD_TO_CHILDREN ) |
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| 264 | ipc_to_children( cmd ); |
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| 265 | else |
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| 266 | commands[i].execute( data, cmd ); |
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| 267 | |
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[f1d38f2] | 268 | break; |
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[0431ea1] | 269 | } |
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| 270 | } |
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| 271 | |
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[da7b484] | 272 | /* Return just one line. Returns NULL if something broke, an empty string |
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| 273 | on temporary "errors" (EAGAIN and friends). */ |
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[6c2404e] | 274 | static char *ipc_readline( int fd, int *recv_fd ) |
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[0431ea1] | 275 | { |
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[6c2404e] | 276 | struct msghdr msg; |
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| 277 | struct iovec iov; |
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| 278 | char ccmsg[CMSG_SPACE(sizeof(recv_fd))]; |
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| 279 | struct cmsghdr *cmsg; |
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[da7b484] | 280 | char buf[513], *eol; |
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[0431ea1] | 281 | int size; |
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| 282 | |
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| 283 | /* Because this is internal communication, it should be pretty safe |
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| 284 | to just peek at the message, find its length (by searching for the |
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| 285 | end-of-line) and then just read that message. With internal |
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| 286 | sockets and limites message length, messages should always be |
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| 287 | complete. Saves us quite a lot of code and buffering. */ |
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[da7b484] | 288 | size = recv( fd, buf, sizeof( buf ) - 1, MSG_PEEK ); |
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[0431ea1] | 289 | if( size == 0 || ( size < 0 && !sockerr_again() ) ) |
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| 290 | return NULL; |
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[1ea13be] | 291 | else if( size < 0 ) /* && sockerr_again() */ |
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| 292 | return( g_strdup( "" ) ); |
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[0431ea1] | 293 | else |
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| 294 | buf[size] = 0; |
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| 295 | |
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[da7b484] | 296 | if( ( eol = strstr( buf, "\r\n" ) ) == NULL ) |
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[0431ea1] | 297 | return NULL; |
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| 298 | else |
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| 299 | size = eol - buf + 2; |
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| 300 | |
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[6c2404e] | 301 | iov.iov_base = buf; |
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| 302 | iov.iov_len = size; |
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| 303 | |
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| 304 | memset( &msg, 0, sizeof( msg ) ); |
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| 305 | msg.msg_iov = &iov; |
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| 306 | msg.msg_iovlen = 1; |
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| 307 | msg.msg_control = ccmsg; |
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| 308 | msg.msg_controllen = sizeof( ccmsg ); |
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| 309 | |
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| 310 | if( recvmsg( fd, &msg, 0 ) != size ) |
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[0431ea1] | 311 | return NULL; |
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[6c2404e] | 312 | |
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| 313 | if( recv_fd ) |
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| 314 | for( cmsg = CMSG_FIRSTHDR( &msg ); cmsg; cmsg = CMSG_NXTHDR( &msg, cmsg ) ) |
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| 315 | if( cmsg->cmsg_level == SOL_SOCKET && cmsg->cmsg_type == SCM_RIGHTS ) |
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| 316 | { |
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| 317 | /* Getting more than one shouldn't happen but if it does, |
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| 318 | make sure we don't leave them around. */ |
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| 319 | if( *recv_fd != -1 ) |
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| 320 | close( *recv_fd ); |
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| 321 | |
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| 322 | *recv_fd = *(int*) CMSG_DATA( cmsg ); |
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| 323 | } |
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| 324 | |
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| 325 | return g_strndup( buf, size - 2 ); |
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[0431ea1] | 326 | } |
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| 327 | |
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[ba9edaa] | 328 | gboolean ipc_master_read( gpointer data, gint source, b_input_condition cond ) |
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[0431ea1] | 329 | { |
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[6c2404e] | 330 | struct bitlbee_child *child = data; |
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[0431ea1] | 331 | char *buf, **cmd; |
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| 332 | |
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[6c2404e] | 333 | if( ( buf = ipc_readline( source, &child->to_fd ) ) ) |
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[0431ea1] | 334 | { |
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| 335 | cmd = irc_parse_line( buf ); |
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| 336 | if( cmd ) |
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[edc767b] | 337 | { |
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[6c2404e] | 338 | ipc_command_exec( child, cmd, ipc_master_commands ); |
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[edc767b] | 339 | g_free( cmd ); |
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| 340 | } |
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| 341 | g_free( buf ); |
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[0431ea1] | 342 | } |
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| 343 | else |
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| 344 | { |
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[171ef85] | 345 | ipc_master_free_fd( source ); |
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[0431ea1] | 346 | } |
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[ba9edaa] | 347 | |
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| 348 | return TRUE; |
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[0431ea1] | 349 | } |
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| 350 | |
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[ba9edaa] | 351 | gboolean ipc_child_read( gpointer data, gint source, b_input_condition cond ) |
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[0431ea1] | 352 | { |
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| 353 | char *buf, **cmd; |
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[6c2404e] | 354 | int recv_fd = -1; |
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[0431ea1] | 355 | |
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[6c2404e] | 356 | if( ( buf = ipc_readline( source, &recv_fd ) ) ) |
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[0431ea1] | 357 | { |
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| 358 | cmd = irc_parse_line( buf ); |
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| 359 | if( cmd ) |
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[edc767b] | 360 | { |
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[0431ea1] | 361 | ipc_command_exec( data, cmd, ipc_child_commands ); |
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[edc767b] | 362 | g_free( cmd ); |
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| 363 | } |
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| 364 | g_free( buf ); |
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[0431ea1] | 365 | } |
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| 366 | else |
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| 367 | { |
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[171ef85] | 368 | ipc_child_disable(); |
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[0431ea1] | 369 | } |
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[ba9edaa] | 370 | |
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| 371 | return TRUE; |
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[0431ea1] | 372 | } |
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| 373 | |
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| 374 | void ipc_to_master( char **cmd ) |
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| 375 | { |
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| 376 | if( global.conf->runmode == RUNMODE_FORKDAEMON ) |
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| 377 | { |
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[74c119d] | 378 | char *s = irc_build_line( cmd ); |
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[2face62] | 379 | ipc_to_master_str( "%s", s ); |
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[f4a5940] | 380 | g_free( s ); |
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| 381 | } |
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| 382 | else if( global.conf->runmode == RUNMODE_DAEMON ) |
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| 383 | { |
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| 384 | ipc_command_exec( NULL, cmd, ipc_master_commands ); |
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| 385 | } |
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| 386 | } |
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| 387 | |
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[2face62] | 388 | void ipc_to_master_str( char *format, ... ) |
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[f4a5940] | 389 | { |
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[2face62] | 390 | char *msg_buf; |
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| 391 | va_list params; |
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| 392 | |
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| 393 | va_start( params, format ); |
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| 394 | msg_buf = g_strdup_vprintf( format, params ); |
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| 395 | va_end( params ); |
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| 396 | |
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| 397 | if( strlen( msg_buf ) > 512 ) |
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| 398 | { |
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| 399 | /* Don't send it, it's too long... */ |
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| 400 | } |
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| 401 | else if( global.conf->runmode == RUNMODE_FORKDAEMON ) |
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[f4a5940] | 402 | { |
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[171ef85] | 403 | if( global.listen_socket >= 0 ) |
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| 404 | if( write( global.listen_socket, msg_buf, strlen( msg_buf ) ) <= 0 ) |
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| 405 | ipc_child_disable(); |
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[f4a5940] | 406 | } |
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| 407 | else if( global.conf->runmode == RUNMODE_DAEMON ) |
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| 408 | { |
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[bd9b00f] | 409 | char **cmd, *s; |
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| 410 | |
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| 411 | if( ( s = strchr( msg_buf, '\r' ) ) ) |
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| 412 | *s = 0; |
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[f4a5940] | 413 | |
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[2face62] | 414 | cmd = irc_parse_line( msg_buf ); |
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[f4a5940] | 415 | ipc_command_exec( NULL, cmd, ipc_master_commands ); |
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| 416 | g_free( cmd ); |
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[74c119d] | 417 | } |
---|
[2face62] | 418 | |
---|
| 419 | g_free( msg_buf ); |
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[74c119d] | 420 | } |
---|
| 421 | |
---|
| 422 | void ipc_to_children( char **cmd ) |
---|
| 423 | { |
---|
| 424 | if( global.conf->runmode == RUNMODE_FORKDAEMON ) |
---|
| 425 | { |
---|
| 426 | char *msg_buf = irc_build_line( cmd ); |
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[2face62] | 427 | ipc_to_children_str( "%s", msg_buf ); |
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[74c119d] | 428 | g_free( msg_buf ); |
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| 429 | } |
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[f4a5940] | 430 | else if( global.conf->runmode == RUNMODE_DAEMON ) |
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| 431 | { |
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| 432 | GSList *l; |
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| 433 | |
---|
| 434 | for( l = irc_connection_list; l; l = l->next ) |
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| 435 | ipc_command_exec( l->data, cmd, ipc_child_commands ); |
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| 436 | } |
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[74c119d] | 437 | } |
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| 438 | |
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[2face62] | 439 | void ipc_to_children_str( char *format, ... ) |
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[74c119d] | 440 | { |
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[2face62] | 441 | char *msg_buf; |
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| 442 | va_list params; |
---|
| 443 | |
---|
| 444 | va_start( params, format ); |
---|
| 445 | msg_buf = g_strdup_vprintf( format, params ); |
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| 446 | va_end( params ); |
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| 447 | |
---|
| 448 | if( strlen( msg_buf ) > 512 ) |
---|
| 449 | { |
---|
| 450 | /* Don't send it, it's too long... */ |
---|
| 451 | } |
---|
| 452 | else if( global.conf->runmode == RUNMODE_FORKDAEMON ) |
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[74c119d] | 453 | { |
---|
| 454 | int msg_len = strlen( msg_buf ); |
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[171ef85] | 455 | GSList *l, *next; |
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[0431ea1] | 456 | |
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[171ef85] | 457 | for( l = child_list; l; l = next ) |
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[0431ea1] | 458 | { |
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[74c119d] | 459 | struct bitlbee_child *c = l->data; |
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[171ef85] | 460 | |
---|
| 461 | next = l->next; |
---|
| 462 | if( write( c->ipc_fd, msg_buf, msg_len ) <= 0 ) |
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| 463 | { |
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| 464 | ipc_master_free_one( c ); |
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| 465 | child_list = g_slist_remove( child_list, c ); |
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| 466 | } |
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[0431ea1] | 467 | } |
---|
| 468 | } |
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[f4a5940] | 469 | else if( global.conf->runmode == RUNMODE_DAEMON ) |
---|
| 470 | { |
---|
[bd9b00f] | 471 | char **cmd, *s; |
---|
| 472 | |
---|
| 473 | if( ( s = strchr( msg_buf, '\r' ) ) ) |
---|
| 474 | *s = 0; |
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[f4a5940] | 475 | |
---|
[2face62] | 476 | cmd = irc_parse_line( msg_buf ); |
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[f4a5940] | 477 | ipc_to_children( cmd ); |
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| 478 | g_free( cmd ); |
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| 479 | } |
---|
[2face62] | 480 | |
---|
| 481 | g_free( msg_buf ); |
---|
| 482 | } |
---|
| 483 | |
---|
[6c2404e] | 484 | static gboolean ipc_send_fd( int fd, int send_fd ) |
---|
| 485 | { |
---|
| 486 | struct msghdr msg; |
---|
| 487 | struct iovec iov; |
---|
| 488 | char ccmsg[CMSG_SPACE(sizeof(fd))]; |
---|
| 489 | struct cmsghdr *cmsg; |
---|
| 490 | |
---|
| 491 | memset( &msg, 0, sizeof( msg ) ); |
---|
| 492 | iov.iov_base = "0x90\r\n"; |
---|
| 493 | iov.iov_len = 6; |
---|
| 494 | msg.msg_iov = &iov; |
---|
| 495 | msg.msg_iovlen = 1; |
---|
| 496 | |
---|
| 497 | msg.msg_control = ccmsg; |
---|
| 498 | msg.msg_controllen = sizeof( ccmsg ); |
---|
| 499 | cmsg = CMSG_FIRSTHDR( &msg ); |
---|
| 500 | cmsg->cmsg_level = SOL_SOCKET; |
---|
| 501 | cmsg->cmsg_type = SCM_RIGHTS; |
---|
| 502 | cmsg->cmsg_len = CMSG_LEN( sizeof( send_fd ) ); |
---|
| 503 | *(int*)CMSG_DATA( cmsg ) = send_fd; |
---|
| 504 | msg.msg_controllen = cmsg->cmsg_len; |
---|
| 505 | |
---|
| 506 | return sendmsg( fd, &msg, 0 ) == 6; |
---|
| 507 | } |
---|
| 508 | |
---|
[2face62] | 509 | void ipc_master_free_one( struct bitlbee_child *c ) |
---|
| 510 | { |
---|
[ba9edaa] | 511 | b_event_remove( c->ipc_inpa ); |
---|
[2face62] | 512 | closesocket( c->ipc_fd ); |
---|
| 513 | |
---|
[6c2404e] | 514 | if( c->to_fd != -1 ) |
---|
| 515 | close( c->to_fd ); |
---|
| 516 | |
---|
[2face62] | 517 | g_free( c->host ); |
---|
| 518 | g_free( c->nick ); |
---|
| 519 | g_free( c->realname ); |
---|
[6c2404e] | 520 | g_free( c->password ); |
---|
[2face62] | 521 | g_free( c ); |
---|
| 522 | } |
---|
| 523 | |
---|
[171ef85] | 524 | void ipc_master_free_fd( int fd ) |
---|
| 525 | { |
---|
| 526 | GSList *l; |
---|
| 527 | struct bitlbee_child *c; |
---|
| 528 | |
---|
| 529 | for( l = child_list; l; l = l->next ) |
---|
| 530 | { |
---|
| 531 | c = l->data; |
---|
| 532 | if( c->ipc_fd == fd ) |
---|
| 533 | { |
---|
| 534 | ipc_master_free_one( c ); |
---|
| 535 | child_list = g_slist_remove( child_list, c ); |
---|
| 536 | break; |
---|
| 537 | } |
---|
| 538 | } |
---|
| 539 | } |
---|
| 540 | |
---|
[2face62] | 541 | void ipc_master_free_all() |
---|
| 542 | { |
---|
| 543 | GSList *l; |
---|
| 544 | |
---|
| 545 | for( l = child_list; l; l = l->next ) |
---|
| 546 | ipc_master_free_one( l->data ); |
---|
| 547 | |
---|
| 548 | g_slist_free( child_list ); |
---|
| 549 | child_list = NULL; |
---|
[0431ea1] | 550 | } |
---|
[54879ab] | 551 | |
---|
[171ef85] | 552 | void ipc_child_disable() |
---|
| 553 | { |
---|
| 554 | b_event_remove( global.listen_watch_source_id ); |
---|
| 555 | close( global.listen_socket ); |
---|
| 556 | |
---|
| 557 | global.listen_socket = -1; |
---|
| 558 | } |
---|
| 559 | |
---|
[80c1e4d] | 560 | #ifndef _WIN32 |
---|
[54879ab] | 561 | char *ipc_master_save_state() |
---|
| 562 | { |
---|
| 563 | char *fn = g_strdup( "/tmp/bee-restart.XXXXXX" ); |
---|
| 564 | int fd = mkstemp( fn ); |
---|
| 565 | GSList *l; |
---|
| 566 | FILE *fp; |
---|
| 567 | int i; |
---|
| 568 | |
---|
| 569 | if( fd == -1 ) |
---|
| 570 | { |
---|
| 571 | log_message( LOGLVL_ERROR, "Could not create temporary file: %s", strerror( errno ) ); |
---|
| 572 | g_free( fn ); |
---|
| 573 | return NULL; |
---|
| 574 | } |
---|
| 575 | |
---|
| 576 | /* This is more convenient now. */ |
---|
| 577 | fp = fdopen( fd, "w" ); |
---|
| 578 | |
---|
| 579 | for( l = child_list, i = 0; l; l = l->next ) |
---|
| 580 | i ++; |
---|
| 581 | |
---|
| 582 | /* Number of client processes. */ |
---|
| 583 | fprintf( fp, "%d\n", i ); |
---|
| 584 | |
---|
| 585 | for( l = child_list; l; l = l->next ) |
---|
[52744f8] | 586 | fprintf( fp, "%d %d\n", (int) ((struct bitlbee_child*)l->data)->pid, |
---|
[54879ab] | 587 | ((struct bitlbee_child*)l->data)->ipc_fd ); |
---|
| 588 | |
---|
| 589 | if( fclose( fp ) == 0 ) |
---|
| 590 | { |
---|
| 591 | return fn; |
---|
| 592 | } |
---|
| 593 | else |
---|
| 594 | { |
---|
| 595 | unlink( fn ); |
---|
| 596 | g_free( fn ); |
---|
| 597 | return NULL; |
---|
| 598 | } |
---|
| 599 | } |
---|
| 600 | |
---|
[6dff9d4] | 601 | |
---|
[ba9edaa] | 602 | static gboolean new_ipc_client( gpointer data, gint serversock, b_input_condition cond ) |
---|
[6dff9d4] | 603 | { |
---|
| 604 | struct bitlbee_child *child = g_new0( struct bitlbee_child, 1 ); |
---|
[a0d04d6] | 605 | |
---|
[6c2404e] | 606 | child->to_fd = -1; |
---|
[a0d04d6] | 607 | child->ipc_fd = accept( serversock, NULL, 0 ); |
---|
| 608 | if( child->ipc_fd == -1 ) |
---|
| 609 | { |
---|
[8a56e52] | 610 | log_message( LOGLVL_WARNING, "Unable to accept connection on UNIX domain socket: %s", strerror(errno) ); |
---|
| 611 | return TRUE; |
---|
| 612 | } |
---|
[6dff9d4] | 613 | |
---|
[e046390] | 614 | child->ipc_inpa = b_input_add( child->ipc_fd, B_EV_IO_READ, ipc_master_read, child ); |
---|
[a0d04d6] | 615 | |
---|
[6c2404e] | 616 | child_list = g_slist_prepend( child_list, child ); |
---|
[ba9edaa] | 617 | |
---|
[6dff9d4] | 618 | return TRUE; |
---|
| 619 | } |
---|
| 620 | |
---|
| 621 | int ipc_master_listen_socket() |
---|
| 622 | { |
---|
| 623 | struct sockaddr_un un_addr; |
---|
| 624 | int serversock; |
---|
| 625 | |
---|
| 626 | /* Clean up old socket files that were hanging around.. */ |
---|
[8a56e52] | 627 | if (unlink(IPCSOCKET) == -1 && errno != ENOENT) { |
---|
| 628 | log_message( LOGLVL_ERROR, "Could not remove old IPC socket at %s: %s", IPCSOCKET, strerror(errno) ); |
---|
| 629 | return 0; |
---|
| 630 | } |
---|
[6dff9d4] | 631 | |
---|
| 632 | un_addr.sun_family = AF_UNIX; |
---|
| 633 | strcpy(un_addr.sun_path, IPCSOCKET); |
---|
| 634 | |
---|
| 635 | serversock = socket(AF_UNIX, SOCK_STREAM, PF_UNIX); |
---|
| 636 | |
---|
[8a56e52] | 637 | if (serversock == -1) { |
---|
| 638 | log_message( LOGLVL_WARNING, "Unable to create UNIX socket: %s", strerror(errno) ); |
---|
| 639 | return 0; |
---|
| 640 | } |
---|
[6dff9d4] | 641 | |
---|
[5d6c178] | 642 | if (bind(serversock, (struct sockaddr *)&un_addr, sizeof(un_addr)) == -1) { |
---|
[8a56e52] | 643 | log_message( LOGLVL_WARNING, "Unable to bind UNIX socket to %s: %s", IPCSOCKET, strerror(errno) ); |
---|
| 644 | return 0; |
---|
| 645 | } |
---|
| 646 | |
---|
| 647 | if (listen(serversock, 5) == -1) { |
---|
| 648 | log_message( LOGLVL_WARNING, "Unable to listen on UNIX socket: %s", strerror(errno) ); |
---|
| 649 | return 0; |
---|
| 650 | } |
---|
[6dff9d4] | 651 | |
---|
[e046390] | 652 | b_input_add( serversock, B_EV_IO_READ, new_ipc_client, NULL ); |
---|
[8a56e52] | 653 | |
---|
[6dff9d4] | 654 | return 1; |
---|
| 655 | } |
---|
| 656 | #else |
---|
[1cda4f3] | 657 | int ipc_master_listen_socket() |
---|
| 658 | { |
---|
[6dff9d4] | 659 | /* FIXME: Open named pipe \\.\BITLBEE */ |
---|
[1cda4f3] | 660 | return 0; |
---|
| 661 | } |
---|
[6dff9d4] | 662 | #endif |
---|
| 663 | |
---|
[cd63d58] | 664 | int ipc_master_load_state( char *statefile ) |
---|
[54879ab] | 665 | { |
---|
| 666 | struct bitlbee_child *child; |
---|
| 667 | FILE *fp; |
---|
| 668 | int i, n; |
---|
| 669 | |
---|
| 670 | if( statefile == NULL ) |
---|
| 671 | return 0; |
---|
[cd63d58] | 672 | |
---|
[54879ab] | 673 | fp = fopen( statefile, "r" ); |
---|
| 674 | unlink( statefile ); /* Why do it later? :-) */ |
---|
| 675 | if( fp == NULL ) |
---|
| 676 | return 0; |
---|
| 677 | |
---|
| 678 | if( fscanf( fp, "%d", &n ) != 1 ) |
---|
| 679 | { |
---|
| 680 | log_message( LOGLVL_WARNING, "Could not import state information for child processes." ); |
---|
| 681 | fclose( fp ); |
---|
| 682 | return 0; |
---|
| 683 | } |
---|
| 684 | |
---|
| 685 | log_message( LOGLVL_INFO, "Importing information for %d child processes.", n ); |
---|
| 686 | for( i = 0; i < n; i ++ ) |
---|
| 687 | { |
---|
| 688 | child = g_new0( struct bitlbee_child, 1 ); |
---|
| 689 | |
---|
[52744f8] | 690 | if( fscanf( fp, "%d %d", (int *) &child->pid, &child->ipc_fd ) != 2 ) |
---|
[54879ab] | 691 | { |
---|
| 692 | log_message( LOGLVL_WARNING, "Unexpected end of file: Only processed %d clients.", i ); |
---|
| 693 | g_free( child ); |
---|
| 694 | fclose( fp ); |
---|
| 695 | return 0; |
---|
| 696 | } |
---|
[e046390] | 697 | child->ipc_inpa = b_input_add( child->ipc_fd, B_EV_IO_READ, ipc_master_read, child ); |
---|
[6c2404e] | 698 | child->to_fd = -1; |
---|
[54879ab] | 699 | |
---|
[6c2404e] | 700 | child_list = g_slist_prepend( child_list, child ); |
---|
[54879ab] | 701 | } |
---|
| 702 | |
---|
| 703 | ipc_to_children_str( "HELLO\r\n" ); |
---|
| 704 | ipc_to_children_str( "OPERMSG :New BitlBee master process started (version " BITLBEE_VERSION ")\r\n" ); |
---|
| 705 | |
---|
[dd89a55] | 706 | fclose( fp ); |
---|
[54879ab] | 707 | return 1; |
---|
| 708 | } |
---|