release/src/router/rc/rc.c

   1 /*
   2
   3         Tomato Firmware
   4         Copyright (C) 2006-2009 Jonathan Zarate
   5
   6 */
   7
   8 #include "rc.h"
   9
  10
  11 #ifdef DEBUG_RCTEST
  12 // used for various testing
  13 static int rctest_main(int argc, char *argv[])
  14 {
  15         if (argc < 2) {
  16                 printf("test what?\n");
  17         }
  18         else {
  19                 printf("%s\n", argv[1]);
  20
  21                 if (strcmp(argv[1], "foo") == 0) {
  22                 }
  23                 else if (strcmp(argv[1], "qos") == 0) {
  24                         start_qos();
  25                 }
  26 #ifdef TCONFIG_IPV6
  27                 if (strcmp(argv[1], "6rd") == 0) {
  28                         stop_6rd_tunnel();
  29                         start_6rd_tunnel();
  30                 }
  31 #endif
  32 #ifdef DEBUG_IPTFILE
  33                 else if (strcmp(argv[1], "iptfile") == 0) {
  34                         create_test_iptfile();
  35                 }
  36 #endif
  37                 else {
  38                         printf("what?\n");
  39                 }
  40         }
  41         return 0;
  42 }
  43 #endif
  44
  45
  46 static int hotplug_main(int argc, char *argv[])
  47 {
  48         if (argc >= 2) {
  49                 if (strcmp(argv[1], "net") == 0) {
  50                         hotplug_net();
  51                 }
  52 #ifdef TCONFIG_USB
  53                 // !!TB - USB Support
  54                 else if (strcmp(argv[1], "usb") == 0) {
  55                         hotplug_usb();
  56                 }
  57 #ifdef LINUX26
  58                 else if (strcmp(argv[1], "block") == 0) {
  59                         hotplug_usb();
  60                 }
  61 #endif
  62 #endif
  63         }
  64         return 0;
  65 }
  66
  67 static int rc_main(int argc, char *argv[])
  68 {
  69         if (argc < 2) return 0;
  70         if (strcmp(argv[1], "start") == 0) return kill(1, SIGUSR2);
  71         if (strcmp(argv[1], "stop") == 0) return kill(1, SIGINT);
  72         if (strcmp(argv[1], "restart") == 0) return kill(1, SIGHUP);
  73         return 0;
  74 }
  75
  76
  77
  78 typedef struct {
  79         const char *name;
  80         int (*main)(int argc, char *argv[]);
  81 } applets_t;
  82
  83 static const applets_t applets[] = {
  84         { "init",                               init_main                               },
  85         { "console",                            console_main                            },
  86         { "rc",                                 rc_main                                 },
  87         { "ip-up",                              ipup_main                               },
  88         { "ip-down",                    ipdown_main                             },
  89 #ifdef TCONFIG_IPV6
  90         { "ipv6-up",                    ip6up_main                              },
  91         { "ipv6-down",                  ip6down_main                            },
  92 #endif
  93         { "ppp_event",                  pppevent_main                   },
  94         { "hotplug",                    hotplug_main                    },
  95         { "redial",                             redial_main                             },
  96         { "listen",                             listen_main                             },
  97         { "service",                    service_main                    },
  98         { "sched",                              sched_main                              },
  99         { "mtd-write",                  mtd_write_main                  },
 100         { "mtd-erase",                  mtd_unlock_erase_main   },
 101         { "mtd-unlock",                 mtd_unlock_erase_main   },
 102         { "buttons",                    buttons_main                    },
 103         { "rcheck",                             rcheck_main                             },
 104         { "dhcpc-event",                dhcpc_event_main                },
 105         { "dhcpc-release",              dhcpc_release_main              },
 106         { "dhcpc-renew",                dhcpc_renew_main                },
 107 #ifdef TCONFIG_IPV6
 108         { "dhcp6c-state",               dhcp6c_state_main               },
 109 #endif
 110         { "radio",                              radio_main                              },
 111         { "led",                                led_main                                },
 112         { "halt",                               reboothalt_main                 },
 113         { "reboot",                             reboothalt_main                 },
 114         { "gpio",                               gpio_main                               },
 115         { "wldist",                             wldist_main                             },
 116 #ifdef TCONFIG_CIFS
 117         { "mount-cifs",                 mount_cifs_main                 },
 118 #endif
 119 #ifdef TCONFIG_DDNS
 120         { "ddns-update",                ddns_update_main                },
 121 #endif
 122 #ifdef DEBUG_RCTEST
 123         { "rctest",                             rctest_main                             },
 124 #endif
 125         {NULL, NULL}
 126 };
 127
 128 int main(int argc, char **argv)
 129 {
 130         char *base;
 131         int f;
 132
 133         /*
 134                 Make sure std* are valid since several functions attempt to close these
 135                 handles. If nvram_*() runs first, nvram=0, nvram gets closed. - zzz
 136         */
 137         if ((f = open("/dev/null", O_RDWR)) < 3) {
 138                 dup(f);
 139                 dup(f);
 140         }
 141         else {
 142                 close(f);
 143         }
 144
 145         base = strrchr(argv[0], '/');
 146         base = base ? base + 1 : argv[0];
 147
 148 #if 1
 149         if (strcmp(base, "rc") == 0) {
 150                 if (argc < 2) return 1;
 151                 if (strcmp(argv[1], "start") == 0) return kill(1, SIGUSR2);
 152                 if (strcmp(argv[1], "stop") == 0) return kill(1, SIGINT);
 153                 if (strcmp(argv[1], "restart") == 0) return kill(1, SIGHUP);
 154                 ++argv;
 155                 --argc;
 156                 base = argv[0];
 157         }
 158 #endif
 159
 160 #if defined(DEBUG_NOISY)
 161         if (nvram_match("debug_logrc", "1")) {
 162                 int i;
 163
 164                 cprintf("[rc %d] ", getpid());
 165                 for (i = 0; i < argc; ++i) {
 166                         cprintf("%s ", argv[i]);
 167                 }
 168                 cprintf("\n");
 169
 170         }
 171 #endif
 172
 173 #if defined(DEBUG_NOISY)
 174         if (nvram_match("debug_ovrc", "1")) {
 175                 char tmp[256];
 176                 char *a[32];
 177
 178                 realpath(argv[0], tmp);
 179                 if ((strncmp(tmp, "/tmp/", 5) != 0) && (argc < 32)) {
 180                         sprintf(tmp, "%s%s", "/tmp/", base);
 181                         if (f_exists(tmp)) {
 182                                 cprintf("[rc] override: %s\n", tmp);
 183                                 memcpy(a, argv, argc * sizeof(a[0]));
 184                                 a[argc] = 0;
 185                                 a[0] = tmp;
 186                                 execvp(tmp, a);
 187                                 exit(0);
 188                         }
 189                 }
 190         }
 191 #endif
 192
 193         const applets_t *a;
 194         for (a = applets; a->name; ++a) {
 195                 if (strcmp(base, a->name) == 0) {
 196                         openlog(base, LOG_PID, LOG_USER);
 197                         return a->main(argc, argv);
 198                 }
 199         }
 200
 201         printf("Unknown applet: %s\n", base);
 202         return 0;
 203 }