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         { "ppp_event",                  pppevent_main                   },
  90         { "hotplug",                    hotplug_main                    },
  91         { "redial",                             redial_main                             },
  92         { "listen",                             listen_main                             },
  93         { "service",                    service_main                    },
  94         { "sched",                              sched_main                              },
  95         { "mtd-write",                  mtd_write_main                  },
  96         { "mtd-erase",                  mtd_unlock_erase_main   },
  97         { "mtd-unlock",                 mtd_unlock_erase_main   },
  98         { "buttons",                    buttons_main                    },
  99         { "blink_5g",                   blink_5g_main                   },
 100         { "rcheck",                             rcheck_main                             },
 101         { "dhcpc-event",                dhcpc_event_main                },
 102         { "dhcpc-release",              dhcpc_release_main              },
 103         { "dhcpc-renew",                dhcpc_renew_main                },
 104 #ifdef TCONFIG_IPV6
 105         { "dhcp6c-state",               dhcp6c_state_main               },
 106 #endif
 107         { "radio",                              radio_main                              },
 108         { "led",                                led_main                                },
 109         { "halt",                               reboothalt_main                 },
 110         { "reboot",                             reboothalt_main                 },
 111         { "gpio",                               gpio_main                               },
 112         { "wldist",                             wldist_main                             },
 113 #ifdef TCONFIG_CIFS
 114         { "mount-cifs",                 mount_cifs_main                 },
 115 #endif
 116 #ifdef TCONFIG_DDNS
 117         { "ddns-update",                ddns_update_main                },
 118 #endif
 119 #ifdef DEBUG_RCTEST
 120         { "rctest",                             rctest_main                             },
 121 #endif
 122         {NULL, NULL}
 123 };
 124
 125 int main(int argc, char **argv)
 126 {
 127         char *base;
 128         int f;
 129
 130         /*
 131                 Make sure std* are valid since several functions attempt to close these
 132                 handles. If nvram_*() runs first, nvram=0, nvram gets closed. - zzz
 133         */
 134         if ((f = open("/dev/null", O_RDWR)) < 3) {
 135                 dup(f);
 136                 dup(f);
 137         }
 138         else {
 139                 close(f);
 140         }
 141
 142         base = strrchr(argv[0], '/');
 143         base = base ? base + 1 : argv[0];
 144
 145 #if 1
 146         if (strcmp(base, "rc") == 0) {
 147                 if (argc < 2) return 1;
 148                 if (strcmp(argv[1], "start") == 0) return kill(1, SIGUSR2);
 149                 if (strcmp(argv[1], "stop") == 0) return kill(1, SIGINT);
 150                 if (strcmp(argv[1], "restart") == 0) return kill(1, SIGHUP);
 151                 ++argv;
 152                 --argc;
 153                 base = argv[0];
 154         }
 155 #endif
 156
 157 #if defined(DEBUG_NOISY)
 158         if (nvram_match("debug_logrc", "1")) {
 159                 int i;
 160
 161                 cprintf("[rc %d] ", getpid());
 162                 for (i = 0; i < argc; ++i) {
 163                         cprintf("%s ", argv[i]);
 164                 }
 165                 cprintf("\n");
 166
 167         }
 168 #endif
 169
 170 #if defined(DEBUG_NOISY)
 171         if (nvram_match("debug_ovrc", "1")) {
 172                 char tmp[256];
 173                 char *a[32];
 174
 175                 realpath(argv[0], tmp);
 176                 if ((strncmp(tmp, "/tmp/", 5) != 0) && (argc < 32)) {
 177                         sprintf(tmp, "%s%s", "/tmp/", base);
 178                         if (f_exists(tmp)) {
 179                                 cprintf("[rc] override: %s\n", tmp);
 180                                 memcpy(a, argv, argc * sizeof(a[0]));
 181                                 a[argc] = 0;
 182                                 a[0] = tmp;
 183                                 execvp(tmp, a);
 184                                 exit(0);
 185                         }
 186                 }
 187         }
 188 #endif
 189
 190         const applets_t *a;
 191         for (a = applets; a->name; ++a) {
 192                 if (strcmp(base, a->name) == 0) {
 193                         openlog(base, LOG_PID, LOG_USER);
 194                         return a->main(argc, argv);
 195                 }
 196         }
 197
 198         printf("Unknown applet: %s\n", base);
 199         return 0;
 200 }