release/src-rt-6.x.4708/router/rc/ppp.c

   1 /*
   2
   3         Copyright 2003, CyberTAN  Inc.  All Rights Reserved
   4
   5         This is UNPUBLISHED PROPRIETARY SOURCE CODE of CyberTAN Inc.
   6         the contents of this file may not be disclosed to third parties,
   7         copied or duplicated in any form without the prior written
   8         permission of CyberTAN Inc.
   9
  10         This software should be used as a reference only, and it not
  11         intended for production use!
  12
  13
  14         THIS SOFTWARE IS OFFERED "AS IS", AND CYBERTAN GRANTS NO WARRANTIES OF ANY
  15         KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE.  CYBERTAN
  16         SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
  17         FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE
  18 */
  19 /*
  20
  21         Copyright 2005, Broadcom Corporation
  22         All Rights Reserved.
  23
  24         THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
  25         KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
  26         SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
  27         FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
  28
  29 */
  30 /*
  31         $Id: ppp.c,v 1.27 2005/03/29 02:00:06 honor Exp $
  32 */
  33
  34 #include "rc.h"
  35
  36 #include <sys/ioctl.h>
  37
  38
  39 int ipup_main(int argc, char **argv)
  40 {
  41         char *wan_ifname;
  42         char *value;
  43         char buf[256];
  44         const char *p;
  45
  46         TRACE_PT("begin\n");
  47
  48         killall("listen", SIGKILL);
  49
  50         if (!wait_action_idle(10)) return -1;
  51
  52         wan_ifname = safe_getenv("IFNAME");
  53         if ((!wan_ifname) || (!*wan_ifname)) return -1;
  54         nvram_set("wan_iface", wan_ifname);     // ppp#
  55
  56         // ipup receives six arguments:
  57         //   <interface name>  <tty device>  <speed> <local IP address> <remote IP address> <ipparam>
  58         //   ppp1 vlan1 0 71.135.98.32 151.164.184.87 0
  59
  60         f_write_string("/tmp/ppp/link", argv[1], 0, 0);
  61
  62         if ((p = getenv("IPREMOTE"))) {
  63                 nvram_set("wan_gateway_get", p);
  64                 TRACE_PT("IPREMOTE=%s\n", p);
  65         }
  66
  67         if ((value = getenv("IPLOCAL"))) {
  68                 _dprintf("IPLOCAL=%s\n", value);
  69
  70                 switch (get_wan_proto()) {
  71                 case WP_PPPOE:
  72                 case WP_PPP3G:
  73                         nvram_set("wan_ipaddr_buf", nvram_safe_get("wan_ipaddr"));              // store last ip address
  74                         nvram_set("wan_ipaddr", value);
  75                         nvram_set("wan_netmask", "255.255.255.255");
  76                         break;
  77                 case WP_PPTP:
  78                 case WP_L2TP:
  79                         nvram_set("wan_ipaddr_buf", nvram_safe_get("ppp_get_ip"));
  80                         break;
  81                 }
  82
  83                 if (!nvram_match("ppp_get_ip", value)) {
  84                         ifconfig(wan_ifname, IFUP, "0.0.0.0", NULL);
  85                         nvram_set("ppp_get_ip", value);
  86                 }
  87
  88                 _ifconfig(wan_ifname, IFUP, value, "255.255.255.255", (p && (*p)) ? p : NULL);
  89         }
  90
  91         buf[0] = 0;
  92         if ((p = getenv("DNS1")) != NULL) strlcpy(buf, p, sizeof(buf));
  93         if ((p = getenv("DNS2")) != NULL) {
  94                 if (buf[0]) strlcat(buf, " ", sizeof(buf));
  95                 strlcat(buf, p, sizeof(buf));
  96         }
  97         nvram_set("wan_get_dns", buf);
  98         TRACE_PT("DNS=%s\n", buf);
  99
 100         if ((value = getenv("AC_NAME"))) nvram_set("ppp_get_ac", value);
 101         if ((value = getenv("SRV_NAME"))) nvram_set("ppp_get_srv", value);
 102         if ((value = getenv("MTU"))) nvram_set("wan_run_mtu", value);
 103
 104         start_wan_done(wan_ifname);
 105
 106         TRACE_PT("end\n");
 107         return 0;
 108 }
 109
 110 int ipdown_main(int argc, char **argv)
 111 {
 112         int proto;
 113
 114         TRACE_PT("begin\n");
 115
 116         if (!wait_action_idle(10)) return -1;
 117
 118         stop_ddns();    // avoid to trigger DOD
 119         stop_ntpc();
 120
 121         unlink("/tmp/ppp/link");
 122
 123         proto = get_wan_proto();
 124         if (proto == WP_L2TP || proto == WP_PPTP) {
 125                 /* clear dns from the resolv.conf */
 126                 nvram_set("wan_get_dns","");
 127                 dns_to_resolv();
 128
 129                 if (proto == WP_L2TP) {
 130                         route_del(nvram_safe_get("wan_ifname"), 0, nvram_safe_get("l2tp_server_ip"),
 131                                 nvram_safe_get("wan_gateway"), "255.255.255.255"); // fixed routing problem in Israel by kanki
 132                 }
 133
 134                 // Restore the default gateway for WAN interface
 135                 nvram_set("wan_gateway_get", nvram_safe_get("wan_gateway"));
 136
 137                 // Set default route to gateway if specified
 138                 route_del(nvram_safe_get("wan_ifname"), 0, "0.0.0.0", nvram_safe_get("wan_gateway"), "0.0.0.0");
 139                 route_add(nvram_safe_get("wan_ifname"), 0, "0.0.0.0", nvram_safe_get("wan_gateway"), "0.0.0.0");
 140         }
 141
 142         if (nvram_get_int("ppp_demand")) {
 143                 killall("listen", SIGKILL);
 144                 eval("listen", nvram_safe_get("lan_ifname"));
 145         }
 146
 147         TRACE_PT("end\n");
 148         return 1;
 149 }
 150
 151 #ifdef TCONFIG_IPV6
 152 int ip6up_main(int argc, char **argv)
 153 {
 154 /*
 155         char *wan_ifname;
 156         char *value;
 157
 158         TRACE_PT("begin\n");
 159         if (!wait_action_idle(10)) return -1;
 160
 161         wan_ifname = safe_getenv("IFNAME");
 162         if ((!wan_ifname) || (!*wan_ifname)) return -1;
 163
 164         value = getenv("LLREMOTE");
 165
 166         // ???
 167
 168         start_wan6_done(wan_ifname);
 169         TRACE_PT("end\n");
 170 */
 171         return 0;
 172 }
 173
 174 int ip6down_main(int argc, char **argv)
 175 {
 176 /*
 177         TRACE_PT("begin\n");
 178         if (!wait_action_idle(10)) return -1;
 179
 180         // ???
 181
 182         TRACE_PT("end\n");
 183 */
 184         return 1;
 185 }
 186 #endif  // IPV6
 187
 188 int pppevent_main(int argc, char **argv)
 189 {
 190         int i;
 191
 192         TRACE_PT("begin\n");
 193
 194         for (i = 1; i < argc; ++i) {
 195                 TRACE_PT("arg%d=%s\n", i, argv[i]);
 196                 if (strcmp(argv[i], "-t") == 0) {
 197                         if (++i >= argc) return 1;
 198                         if ((strcmp(argv[i], "PAP_AUTH_FAIL") == 0) || (strcmp(argv[i], "CHAP_AUTH_FAIL") == 0)) {
 199                                 f_write_string("/tmp/ppp/log", argv[i], 0, 0);
 200                                 notice_set("wan", "Authentication failed");     // !!!
 201                                 return 0;
 202                         }
 203                 }
 204         }
 205
 206         TRACE_PT("end\n");
 207         return 1;
 208 }
 209
 210 #if 0
 211 int set_pppoepid_main(int argc, char **argv)
 212 {
 213         if (argc < 2) return 0;
 214
 215         TRACE_PT("num=%s\n", argv[1]);
 216
 217         if (atoi(argv[1]) != 0) return 0;
 218
 219         nvram_set("pppoe_pid0", getenv("PPPD_PID"));
 220         nvram_set("pppoe_ifname0", getenv("IFNAME"));
 221         nvram_set("wan_iface", getenv("IFNAME"));
 222
 223         TRACE_PT("IFNAME=%s DEVICE=%s\n", getenv("IFNAME"), getenv("DEVICE"));
 224         return 0;
 225 }
 226
 227 int pppoe_down_main(int argc, char **argv)
 228 {
 229         if (argc < 2) return 0;
 230
 231         TRACE_PT("num=%s\n", argv[1]);
 232
 233         if (atoi(argv[1]) != 0) return 0;
 234
 235         if ((nvram_get_int("ppp_demand")) && (nvram_match("action_service", "")))       {
 236                 stop_singe_pppoe(0);
 237                 start_pppoe(0);
 238
 239                 stop_dnsmasq();
 240                 dns_to_resolv();
 241                 start_dnsmasq();
 242         }
 243         return 0;
 244 }
 245 #endif  // 0