release/src/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   5         This is UNPUBLISHED PROPRIETARY SOURCE CODE of CyberTAN Inc.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 #define IFUP (IFF_UP | IFF_RUNNING | IFF_BROADCAST | IFF_MULTICAST)
  40
  41
  42
  43 int ipup_main(int argc, char **argv)
  44 {
  45         char *wan_ifname;
  46         char *value;
  47         char buf[256];
  48         const char *p;
  49
  50         _dprintf("%s: begin\n", __FUNCTION__);
  51
  52         killall("listen", SIGKILL);
  53
  54         if (!wait_action_idle(10)) return -1;
  55
  56
  57         wan_ifname = safe_getenv("IFNAME");
  58         if ((!wan_ifname) || (!*wan_ifname)) return -1;
  59         nvram_set("wan_iface", wan_ifname);     // ppp#
  60
  61         // ipup receives six arguments:
  62         //   <interface name>  <tty device>  <speed> <local IP address> <remote IP address> <ipparam>
  63         //   ppp1 vlan1 0 71.135.98.32 151.164.184.87 0
  64
  65         f_write_string("/tmp/ppp/link", argv[1], 0, 0);
  66
  67         if ((value = getenv("IPLOCAL"))) {
  68                 _dprintf("IPLOCAL=%s\n", getenv("IPLOCAL"));
  69
  70                 ifconfig(wan_ifname, IFUP, value, "255.255.255.255");
  71
  72                 switch (get_wan_proto()) {
  73                 case WP_PPPOE:
  74                         nvram_set("wan_ipaddr_buf", nvram_safe_get("wan_ipaddr"));              // store last ip address
  75                         nvram_set("wan_ipaddr", value);
  76                         nvram_set("wan_netmask", "255.255.255.255");
  77                         break;
  78                 case WP_PPTP:
  79                         nvram_set("wan_ipaddr_buf", nvram_safe_get("pptp_get_ip"));
  80                         nvram_set("pptp_get_ip", value);
  81                         break;
  82                 case WP_L2TP:
  83                         nvram_set("wan_ipaddr_buf", nvram_safe_get("l2tp_get_ip"));
  84                         nvram_set("l2tp_get_ip", value);
  85                         break;
  86                 }
  87         }
  88
  89         if ((value = getenv("IPREMOTE"))) {
  90                 nvram_set("wan_gateway", value);
  91                 _dprintf("IPREMOTE=%s\n", getenv("IPREMOTE"));
  92         }
  93
  94         buf[0] = 0;
  95         if ((p = getenv("DNS1")) != NULL) strlcpy(buf, p, sizeof(buf));
  96         if ((p = getenv("DNS2")) != NULL) {
  97                 if (buf[0]) strlcat(buf, " ", sizeof(buf));
  98                 strlcat(buf, p, sizeof(buf));
  99         }
 100         nvram_set("wan_get_dns", buf);
 101
 102         if ((value = getenv("AC_NAME"))) nvram_set("ppp_get_ac", value);
 103         if ((value = getenv("SRV_NAME"))) nvram_set("ppp_get_srv", value);
 104         if ((value = getenv("MTU"))) nvram_set("wan_run_mtu", value);
 105
 106         start_wan_done(wan_ifname);
 107
 108         _dprintf("%s: end\n", __FUNCTION__);
 109         return 0;
 110 }
 111
 112 int ipdown_main(int argc, char **argv)
 113 {
 114         int proto;
 115
 116         _dprintf("%s: begin\n", __FUNCTION__);
 117
 118         if (!wait_action_idle(10)) return -1;
 119
 120         stop_ddns();    // avoid to trigger DOD
 121         stop_ntpc();
 122
 123         unlink("/tmp/ppp/link");
 124
 125         proto = get_wan_proto();
 126         if (proto == WP_L2TP) {
 127                 /* clear dns from the resolv.conf */
 128                 nvram_set("wan_get_dns","");
 129                 dns_to_resolv();
 130
 131                 route_del(nvram_safe_get("wan_ifname"), 0, nvram_safe_get("l2tp_server_ip"),
 132                         nvram_safe_get("wan_gateway_buf"), "255.255.255.255"); // fixed routing problem in Israel by kanki
 133
 134                 // Restore the default gateway for WAN interface
 135                 nvram_set("wan_gateway", nvram_safe_get("wan_gateway_buf"));
 136
 137                 // Set default route to gateway if specified
 138                 route_add(nvram_safe_get("wan_ifname"), 0, "0.0.0.0", nvram_safe_get("wan_gateway"), "0.0.0.0");
 139         }
 140
 141         if ((nvram_match("ppp_demand", "1")) && ((proto == WP_PPTP) || (proto == WP_L2TP))) {
 142                 killall("listen", SIGKILL);
 143                 eval("listen", nvram_safe_get("lan_ifname"));
 144         }
 145
 146         _dprintf("%s: end\n", __FUNCTION__);
 147         return 1;
 148 }
 149
 150 int pppevent_main(int argc, char **argv)
 151 {
 152         int i;
 153
 154         _dprintf("%s: begin\n", __FUNCTION__);
 155
 156         for (i = 1; i < argc; ++i) {
 157                 _dprintf("%s: arg%d=%s\n", __FUNCTION__, i, argv[i]);
 158                 if (strcmp(argv[i], "-t") == 0) {
 159                         if (++i >= argc) return 1;
 160                         if ((strcmp(argv[i], "PAP_AUTH_FAIL") == 0) || (strcmp(argv[i], "CHAP_AUTH_FAIL") == 0)) {
 161                                 f_write_string("/tmp/ppp/log", argv[i], 0, 0);
 162                                 notice_set("wan", "Authentication failed");     // !!!
 163                                 return 0;
 164                         }
 165                 }
 166         }
 167
 168         _dprintf("%s: end\n", __FUNCTION__);
 169         return 1;
 170 }
 171
 172 int set_pppoepid_main(int argc, char **argv)
 173 {
 174         if (argc < 2) return 0;
 175
 176         _dprintf("%s: num=%s\n", __FUNCTION__, argv[1]);
 177
 178         if (atoi(argv[1]) != 0) return 0;
 179
 180         nvram_set("pppoe_pid0", getenv("PPPD_PID"));
 181         nvram_set("pppoe_ifname0", getenv("IFNAME"));
 182         nvram_set("wan_iface", getenv("IFNAME"));
 183
 184         _dprintf("IFNAME=%s DEVICE=%s\n", getenv("IFNAME"), getenv("DEVICE"));
 185         return 0;
 186 }
 187
 188 int pppoe_down_main(int argc, char **argv)
 189 {
 190         if (argc < 2) return 0;
 191
 192         _dprintf("%s: num=%s\n", __FUNCTION__, argv[1]);
 193
 194         if (atoi(argv[1]) != 0) return 0;
 195
 196         if ((nvram_match("ppp_demand", "1")) && (nvram_match("action_service", "")))    {
 197                 stop_singe_pppoe(0);
 198                 start_pppoe(0);
 199
 200                 stop_dnsmasq();
 201                 dns_to_resolv();
 202                 start_dnsmasq();
 203         }
 204         return 0;
 205 }