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version 1.1.2.5, 2010/10/27 16:35:54
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version 1.3.4.1, 2014/01/30 01:03:23
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/************************************************************************* |
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* (C) 2010 AITNET - Sofia/Bulgaria - <office@aitbg.com> |
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* by Michael Pounov <misho@aitbg.com> |
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* |
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* $Author$ |
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* $Id$ |
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* |
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************************************************************************* |
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The ELWIX and AITNET software is distributed under the following |
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terms: |
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|
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All of the documentation and software included in the ELWIX and AITNET |
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Releases is copyrighted by ELWIX - Sofia/Bulgaria <info@elwix.org> |
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|
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Copyright 2004 - 2014 |
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by Michael Pounov <misho@elwix.org>. All rights reserved. |
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|
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Redistribution and use in source and binary forms, with or without |
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modification, are permitted provided that the following conditions |
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are met: |
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1. Redistributions of source code must retain the above copyright |
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notice, this list of conditions and the following disclaimer. |
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2. Redistributions in binary form must reproduce the above copyright |
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notice, this list of conditions and the following disclaimer in the |
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documentation and/or other materials provided with the distribution. |
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3. All advertising materials mentioning features or use of this software |
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must display the following acknowledgement: |
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This product includes software developed by Michael Pounov <misho@elwix.org> |
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ELWIX - Embedded LightWeight unIX and its contributors. |
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4. Neither the name of AITNET nor the names of its contributors |
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may be used to endorse or promote products derived from this software |
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without specific prior written permission. |
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|
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THIS SOFTWARE IS PROVIDED BY AITNET AND CONTRIBUTORS ``AS IS'' AND |
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
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FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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SUCH DAMAGE. |
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*/ |
| #include "global.h" |
#include "global.h" |
| #include "dwds.h" |
#include "dwds.h" |
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|
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|
| sl_config cfg; | cfg_root_t cfg; |
| int Verbose, Kill, nif; |
int Verbose, Kill, nif; |
| char **ifs, szConfig[MAXPATHLEN] = DWDS_CONFIG; |
char **ifs, szConfig[MAXPATHLEN] = DWDS_CONFIG; |
| extern char compiled[], compiledby[], compilehost[]; |
extern char compiled[], compiledby[], compilehost[]; |
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Line 13 Usage()
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Line 58 Usage()
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| { |
{ |
| printf( "-= dWDS =- WiFi dynamic WDS service managment for VAP\n" |
printf( "-= dWDS =- WiFi dynamic WDS service managment for VAP\n" |
| "=== %s === %s@%s ===\n\n" |
"=== %s === %s@%s ===\n\n" |
| " Syntax: dwds [options] <interface|any> [interface [...]]\n" | " Syntax: dwds [options] <interface|any> [interface [ath0, ...]]\n" |
| "\n" |
"\n" |
| "\t-v\t\tVerbose ...\n" |
"\t-v\t\tVerbose ...\n" |
| "\t-f\t\tForeground, not demonize process ...\n" |
"\t-f\t\tForeground, not demonize process ...\n" |
|
Line 25 static void
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Line 70 static void
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| sigHandler(int sig) |
sigHandler(int sig) |
| { |
{ |
| int stat; |
int stat; |
| const u_char *v; | ait_val_t name; |
| char szStr[STRSIZ]; | const char *v; |
| |
|
| switch (sig) { |
switch (sig) { |
| case SIGHUP: |
case SIGHUP: |
| UnloadConfig(&cfg); | cfgUnloadConfig(&cfg); |
| if (LoadConfig(szConfig, &cfg)) { | if (cfgLoadConfig(szConfig, &cfg)) { |
| printf("Error:: can`t load config %s ...\n", szConfig); |
printf("Error:: can`t load config %s ...\n", szConfig); |
| Kill++; |
Kill++; |
| } else { |
} else { |
| closelog(); |
closelog(); |
| |
|
| cfg_LoadAttribute(&cfg, CFG("dwds"), CFG("name"), CFG(szStr), STRSIZ, DWDS_NAME); | cfg_loadAttribute(&cfg, "dwds", "name", &name, DWDS_NAME); |
| openlog(szStr, LOG_PID | LOG_CONS, LOG_DAEMON); | openlog(AIT_GET_STR(&name), LOG_PID | LOG_CONS, LOG_DAEMON); |
| v = cfg_GetAttribute(&cfg, CFG("dwds"), CFG("syslog_upto")); | AIT_FREE_VAL(&name); |
| setlogmask(v ? strtol((char*) v, NULL, 0) : 0); | v = cfg_getAttribute(&cfg, "dwds", "syslog_upto"); |
| | setlogmask(v ? strtol(v, NULL, 0) : 0); |
| } |
} |
| break; |
break; |
| case SIGTERM: |
case SIGTERM: |
|
Line 53 sigHandler(int sig)
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Line 99 sigHandler(int sig)
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| } |
} |
| |
|
| static int |
static int |
| RtMsg(struct rt_msghdr *msg, size_t len) | RtMsg(struct dwds_if **wds, struct rt_msghdr *msg, size_t len) |
| { |
{ |
| struct dwds_if *wds = NULL; | struct if_announcemsghdr *ifan; |
| | const char *v; |
| | struct ether_addr bssid; |
| | ait_val_t Str, Ident; |
| | char szCmd[MAXPATHLEN] = { 0 }, szName[IFNAMSIZ] = { 0 }; |
| | int f, stat; |
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|
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assert(wds); |
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assert(msg); |
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|
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if (msg->rtm_version != RTM_VERSION) { |
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syslog(LOG_ERR, "Error:: routing message version %d not understood!\n", msg->rtm_version); |
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return -1; |
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} |
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|
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switch (msg->rtm_type) { |
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case RTM_IFANNOUNCE: |
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ifan = (struct if_announcemsghdr*) msg; |
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switch (ifan->ifan_what) { |
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case IFAN_ARRIVAL: |
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VERB(1) syslog(LOG_INFO, "RTM_IFANNOUNCE: if# %d, what: arrival\n", |
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ifan->ifan_index); |
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break; |
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case IFAN_DEPARTURE: |
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VERB(1) syslog(LOG_INFO, "RTM_IFANNOUNCE: if# %d, what: departure\n", |
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ifan->ifan_index); |
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wifi_destroyWDS(ifan->ifan_name, wds); |
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break; |
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} |
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break; |
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case RTM_IEEE80211: |
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#define V(type) ((struct type *)(&ifan[1])) |
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ifan = (struct if_announcemsghdr*) msg; |
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switch (ifan->ifan_what) { |
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case RTM_IEEE80211_DISASSOC: |
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v = cfg_getAttribute(&cfg, "dwds", "discover_on_join"); |
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if (!v || !strtol(v, NULL, 0)) |
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break; |
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/* fall thru ... */ |
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case RTM_IEEE80211_LEAVE: |
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if (!wifi_chkIface(ifan->ifan_name, ifs, nif)) |
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break; |
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memcpy(&bssid, V(ieee80211_leave_event)->iev_addr, ETHER_ADDR_LEN); |
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VERB(1) syslog(LOG_INFO, "BSSID:%s Station leave\n", ether_ntoa(&bssid)); |
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if (!wifi_leaveWDS(bssid, wds, szName, IFNAMSIZ)) { |
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cfg_loadAttribute(&cfg, "dwds", "name", &Ident, DWDS_NAME); |
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/* delete state file ... */ |
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v = cfg_getAttribute(&cfg, "dwds", "state_dir"); |
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if (v) { |
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memset(szCmd, 0, STRSIZ); |
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snprintf(szCmd, MAXPATHLEN, "%s/%s-%s-%s", v, szName, |
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ether_ntoa(&bssid), AIT_GET_STR(&Ident)); |
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unlink(szCmd); |
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VERB(2) syslog(LOG_DEBUG, "Debug:: delete session name %s\n", szCmd); |
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} |
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|
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/* Launch script ... */ |
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cfg_loadAttribute(&cfg, "dwds", "disassoc_event", &Str, NULL); |
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if (!AIT_ISEMPTY(&Str)) { |
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memset(szCmd, 0, MAXPATHLEN); |
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snprintf(szCmd, MAXPATHLEN, "%s %s %s %s", AIT_GET_STR(&Str), |
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szName, ether_ntoa(&bssid), AIT_GET_STR(&Ident)); |
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VERB(3) syslog(LOG_DEBUG, "Debug:: Command line: %s\n", szCmd); |
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|
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if ((stat = system(szCmd))) |
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syslog(LOG_ERR, "VAP down script %s exited " |
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"with status %d\n", |
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AIT_GET_STR(&Str), stat); |
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AIT_FREE_VAL(&Str); |
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} |
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AIT_FREE_VAL(&Ident); |
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} |
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break; |
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|
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case RTM_IEEE80211_JOIN: |
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case RTM_IEEE80211_REJOIN: |
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case RTM_IEEE80211_ASSOC: |
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case RTM_IEEE80211_REASSOC: |
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v = cfg_getAttribute(&cfg, "dwds", "discover_on_join"); |
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if (!v || !strtol(v, NULL, 0)) |
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break; |
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/* fall thru ... */ |
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case RTM_IEEE80211_WDS: |
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memcpy(&bssid, V(ieee80211_leave_event)->iev_addr, ETHER_ADDR_LEN); |
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VERB(1) syslog(LOG_INFO, "BSSID:%s WDS discovery\n", ether_ntoa(&bssid)); |
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if (!wifi_chkIface(ifan->ifan_name, ifs, nif)) |
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break; |
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if (!wifi_createWDS(ifan->ifan_name, bssid, wds)) { |
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cfg_loadAttribute(&cfg, "dwds", "name", &Ident, DWDS_NAME); |
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/* create state file ... */ |
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v = cfg_getAttribute(&cfg, "dwds", "state_dir"); |
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if (v) { |
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memset(szCmd, 0, MAXPATHLEN); |
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snprintf(szCmd, MAXPATHLEN, "%s/%s-%s-%s", (char*) v, |
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(*wds)->if_name, ether_ntoa(&bssid), |
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AIT_GET_STR(&Ident)); |
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f = open(szCmd, O_WRONLY | O_CREAT, 0644); |
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if (f != -1) |
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close(f); |
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VERB(2) syslog(LOG_DEBUG, "Debug:: create session name %s\n", szCmd); |
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} |
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|
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/* Launch script ... */ |
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cfg_loadAttribute(&cfg, "dwds", "assoc_event", &Str, NULL); |
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if (!AIT_ISEMPTY(&Str)) { |
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memset(szCmd, 0, MAXPATHLEN); |
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snprintf(szCmd, MAXPATHLEN, "%s %s %s %s", AIT_GET_STR(&Str), |
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(*wds)->if_name, ether_ntoa(&bssid), |
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AIT_GET_STR(&Ident)); |
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VERB(3) syslog(LOG_DEBUG, "Debug:: Command line: %s\n", szCmd); |
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|
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if ((stat = system(szCmd))) |
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syslog(LOG_ERR, "VAP up script %s exited " |
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"with status %d\n", |
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AIT_GET_STR(&Str), stat); |
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AIT_FREE_VAL(&Str); |
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} |
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AIT_FREE_VAL(&Ident); |
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} |
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break; |
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} |
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#undef V |
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break; |
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} |
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|
| return 0; |
return 0; |
| } |
} |
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|
| // --------------------------------------------------------------- |
|
| |
|
| int |
int |
| main(int argc, char **argv) |
main(int argc, char **argv) |
| { |
{ |
| char ch, szStr[STRSIZ], fg = 0; | char ch, fg = 0; |
| const u_char *v, msg[2048]; | ait_val_t Ident; |
| | const char *v, msg[2048]; |
| int s; |
int s; |
| struct sigaction sa; |
struct sigaction sa; |
| size_t len; |
size_t len; |
| |
struct dwds_if *wds = NULL; |
| |
|
| while ((ch = getopt(argc, argv, "hvfc:")) != -1) |
while ((ch = getopt(argc, argv, "hvfc:")) != -1) |
| switch (ch) { |
switch (ch) { |
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Line 97 main(int argc, char **argv)
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Line 267 main(int argc, char **argv)
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| nif = argc; |
nif = argc; |
| ifs = argv; |
ifs = argv; |
| } |
} |
| if (LoadConfig(szConfig, &cfg)) { | if (cfgLoadConfig(szConfig, &cfg)) { |
| printf("Error:: can`t load config %s ...\n", szConfig); |
printf("Error:: can`t load config %s ...\n", szConfig); |
| return 1; |
return 1; |
| } |
} |
| |
|
| if (fg) | if (!fg) |
| switch (fork()) { |
switch (fork()) { |
| case -1: |
case -1: |
| printf("Error:: when fork() #%d - %s\n", errno, strerror(errno)); |
printf("Error:: when fork() #%d - %s\n", errno, strerror(errno)); |
| UnloadConfig(&cfg); | cfgUnloadConfig(&cfg); |
| return 2; |
return 2; |
| case 0 : |
case 0 : |
| VERB(1) printf("Going to shadow land ...\n"); |
VERB(1) printf("Going to shadow land ...\n"); |
|
Line 124 main(int argc, char **argv)
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Line 294 main(int argc, char **argv)
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| goto end; |
goto end; |
| } |
} |
| |
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| cfg_LoadAttribute(&cfg, CFG("dwds"), CFG("name"), CFG(szStr), STRSIZ, DWDS_NAME); | cfg_loadAttribute(&cfg, "dwds", "name", &Ident, DWDS_NAME); |
| openlog(szStr, LOG_PID | LOG_CONS, LOG_DAEMON); | openlog(AIT_GET_STR(&Ident), LOG_PID | LOG_CONS, LOG_DAEMON); |
| v = cfg_GetAttribute(&cfg, CFG("dwds"), CFG("syslog_upto")); | AIT_FREE_VAL(&Ident); |
| setlogmask(v ? strtol((char*) v, NULL, 0) : 0); | v = cfg_getAttribute(&cfg, "dwds", "syslog_upto"); |
| | setlogmask(v ? strtol(v, NULL, 0) : 0); |
| |
|
| s = socket(PF_ROUTE, SOCK_RAW, 0); |
s = socket(PF_ROUTE, SOCK_RAW, 0); |
| if (s == -1) { |
if (s == -1) { |
|
Line 135 main(int argc, char **argv)
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Line 306 main(int argc, char **argv)
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| goto end; |
goto end; |
| } |
} |
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if (!(wds = wifi_buildWDS(s, ifs, nif))) { |
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syslog(LOG_ERR, "Error:: Go to dead ...\n"); |
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goto end; |
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} |
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|
| while (!Kill) { |
while (!Kill) { |
| len = read(s, (void*) msg, sizeof msg); |
len = read(s, (void*) msg, sizeof msg); |
| if (len == -1) { |
if (len == -1) { |
| syslog(LOG_ERR, "Error:: read() #%d - %s\n", errno, strerror(errno)); | VERB(5) syslog(LOG_ERR, "Error:: read() #%d - %s\n", errno, strerror(errno)); |
| Kill++; |
Kill++; |
| } else |
} else |
| RtMsg((struct rt_msghdr*) msg, len); | RtMsg(&wds, (struct rt_msghdr*) msg, len); |
| } |
} |
| |
|
| close(s); |
close(s); |
| end: |
end: |
| closelog(); |
closelog(); |
| UnloadConfig(&cfg); | cfgUnloadConfig(&cfg); |
| return 0; |
return 0; |
| } |
} |