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