--- embedtools/src/dwds.c 2010/10/27 13:10:40 1.1.2.1 +++ embedtools/src/dwds.c 2010/10/27 16:39:47 1.1.2.6 @@ -2,8 +2,153 @@ #include "dwds.h" +sl_config cfg; +int Verbose, Kill, nif; +char **ifs, szConfig[MAXPATHLEN] = DWDS_CONFIG; +extern char compiled[], compiledby[], compilehost[]; + + +static void +Usage() +{ + printf( "-= dWDS =- WiFi dynamic WDS service managment for VAP\n" + "=== %s === %s@%s ===\n\n" + " Syntax: dwds [options] [interface [...]]\n" + "\n" + "\t-v\t\tVerbose ...\n" + "\t-f\t\tForeground, not demonize process ...\n" + "\t-c \tConfig file [default=/etc/dwds.conf]\n" + "\n", compiled, compiledby, compilehost); +} + +static void +sigHandler(int sig) +{ + int stat; + const u_char *v; + char szStr[STRSIZ]; + + switch (sig) { + case SIGHUP: + UnloadConfig(&cfg); + if (LoadConfig(szConfig, &cfg)) { + printf("Error:: can`t load config %s ...\n", szConfig); + Kill++; + } else { + closelog(); + + cfg_LoadAttribute(&cfg, CFG("dwds"), CFG("name"), CFG(szStr), STRSIZ, DWDS_NAME); + openlog(szStr, LOG_PID | LOG_CONS, LOG_DAEMON); + v = cfg_GetAttribute(&cfg, CFG("dwds"), CFG("syslog_upto")); + setlogmask(v ? strtol((char*) v, NULL, 0) : 0); + } + break; + case SIGTERM: + Kill++; + break; + case SIGCHLD: + while (waitpid(-1, &stat, WNOHANG) > 0); + break; + } +} + +static int +RtMsg(struct dwds_if *wds, struct rt_msghdr *msg, size_t len) +{ + return 0; +} + +// --------------------------------------------------------------- + int main(int argc, char **argv) { + char ch, szStr[STRSIZ], fg = 0; + const u_char *v, msg[2048]; + int s; + struct sigaction sa; + size_t len; + struct dwds_if *wds = NULL; + + while ((ch = getopt(argc, argv, "hvfc:")) != -1) + switch (ch) { + case 'v': + Verbose++; + break; + case 'f': + fg = 1; + break; + case 'c': + strlcpy(szConfig, optarg, MAXPATHLEN); + break; + case 'h': + default: + Usage(); + return 1; + } + argc -= optind; + argv += optind; + if (!argc) { + printf("Error:: not specified interface for use ...\n"); + Usage(); + return 1; + } else { + nif = argc; + ifs = argv; + } + if (LoadConfig(szConfig, &cfg)) { + printf("Error:: can`t load config %s ...\n", szConfig); + return 1; + } + + if (fg) + switch (fork()) { + case -1: + printf("Error:: when fork() #%d - %s\n", errno, strerror(errno)); + UnloadConfig(&cfg); + return 2; + case 0 : + VERB(1) printf("Going to shadow land ...\n"); + + setsid(); + + memset(&sa, 0, sizeof sa); + sa.sa_handler = sigHandler; + sigemptyset(&sa.sa_mask); + sigaction(SIGHUP, &sa, NULL); + sigaction(SIGTERM, &sa, NULL); + sigaction(SIGCHLD, &sa, NULL); + break; + default: + goto end; + } + + cfg_LoadAttribute(&cfg, CFG("dwds"), CFG("name"), CFG(szStr), STRSIZ, DWDS_NAME); + openlog(szStr, LOG_PID | LOG_CONS, LOG_DAEMON); + v = cfg_GetAttribute(&cfg, CFG("dwds"), CFG("syslog_upto")); + setlogmask(v ? strtol((char*) v, NULL, 0) : 0); + + s = socket(PF_ROUTE, SOCK_RAW, 0); + if (s == -1) { + syslog(LOG_ERR, "Error:: socket() #%d - %s\n", errno, strerror(errno)); + goto end; + } + + if (!(wds = wifi_buildWDS(s, ifs, nif))) + goto end; + + while (!Kill) { + len = read(s, (void*) msg, sizeof msg); + if (len == -1) { + syslog(LOG_ERR, "Error:: read() #%d - %s\n", errno, strerror(errno)); + Kill++; + } else + RtMsg(wds, (struct rt_msghdr*) msg, len); + } + + close(s); +end: + closelog(); + UnloadConfig(&cfg); return 0; }