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   5         This is UNPUBLISHED PROPRIETARY SOURCE CODE of CyberTAN Inc.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 #include <stdlib.h>
  36
  37 #include <sys/ioctl.h>
  38
  39
  40 int ipup_main(int argc, char **argv)
  41 {
  42         char *wan_ifname;
  43         char *value;
  44         char buf[256];
  45         const char *p;
  46
  47         TRACE_PT("begin\n");
  48
  49         killall("listen", SIGKILL);
  50
  51         if (!wait_action_idle(10)) return -1;
  52
  53         wan_ifname = safe_getenv("IFNAME");
  54         if ((!wan_ifname) || (!*wan_ifname)) return -1;
  55         nvram_set("wan_iface", wan_ifname);     // ppp#
  56
  57         // ipup receives six arguments:
  58         //   <interface name>  <tty device>  <speed> <local IP address> <remote IP address> <ipparam>
  59         //   ppp1 vlan1 0 71.135.98.32 151.164.184.87 0
  60
  61         f_write_string("/tmp/ppp/link", argv[1], 0, 0);
  62
  63         if ((p = getenv("IPREMOTE"))) {
  64                 nvram_set("wan_gateway_get", p);
  65                 TRACE_PT("IPREMOTE=%s\n", p);
  66         }
  67
  68         if ((value = getenv("IPLOCAL"))) {
  69                 _dprintf("IPLOCAL=%s\n", value);
  70
  71                 switch (get_wan_proto()) {
  72                 case WP_PPPOE:
  73                 case WP_PPP3G:
  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                 case WP_L2TP:
  80                         nvram_set("wan_ipaddr_buf", nvram_safe_get("ppp_get_ip"));
  81                         break;
  82                 }
  83
  84                 if (!nvram_match("ppp_get_ip", value)) {
  85                         ifconfig(wan_ifname, IFUP, "0.0.0.0", NULL);
  86                         nvram_set("ppp_get_ip", value);
  87                 }
  88
  89                 _ifconfig(wan_ifname, IFUP, value, "255.255.255.255", (p && (*p)) ? p : NULL);
  90         }
  91
  92         buf[0] = 0;
  93         if ((p = getenv("DNS1")) != NULL) strlcpy(buf, p, sizeof(buf));
  94         if ((p = getenv("DNS2")) != NULL) {
  95                 if (buf[0]) strlcat(buf, " ", sizeof(buf));
  96                 strlcat(buf, p, sizeof(buf));
  97         }
  98         nvram_set("wan_get_dns", buf);
  99         TRACE_PT("DNS=%s\n", buf);
 100
 101         if ((value = getenv("AC_NAME"))) nvram_set("ppp_get_ac", value);
 102         if ((value = getenv("SRV_NAME"))) nvram_set("ppp_get_srv", value);
 103         if ((value = getenv("MTU"))) nvram_set("wan_run_mtu", value);
 104
 105         start_wan_done(wan_ifname);
 106
 107         TRACE_PT("end\n");
 108         return 0;
 109 }
 110
 111 int ipdown_main(int argc, char **argv)
 112 {
 113         int proto;
 114
 115         TRACE_PT("begin\n");
 116
 117         if (!wait_action_idle(10)) return -1;
 118
 119         stop_ddns();    // avoid to trigger DOD
 120         stop_ntpc();
 121
 122         unlink("/tmp/ppp/link");
 123
 124         proto = get_wan_proto();
 125         if (proto == WP_L2TP || proto == WP_PPTP) {
 126                 /* clear dns from the resolv.conf */
 127                 nvram_set("wan_get_dns","");
 128                 dns_to_resolv();
 129
 130                 if (proto == WP_L2TP) {
 131                         route_del(nvram_safe_get("wan_ifname"), 0, nvram_safe_get("l2tp_server_ip"),
 132                                 nvram_safe_get("wan_gateway"), "255.255.255.255"); // fixed routing problem in Israel by kanki
 133                 }
 134
 135                 // Restore the default gateway for WAN interface
 136                 nvram_set("wan_gateway_get", nvram_safe_get("wan_gateway"));
 137
 138                 // Set default route to gateway if specified
 139                 route_del(nvram_safe_get("wan_ifname"), 0, "0.0.0.0", nvram_safe_get("wan_gateway"), "0.0.0.0");
 140                 route_add(nvram_safe_get("wan_ifname"), 0, "0.0.0.0", nvram_safe_get("wan_gateway"), "0.0.0.0");
 141         }
 142
 143         if (nvram_get_int("ppp_demand")) {
 144                 killall("listen", SIGKILL);
 145                 eval("listen", nvram_safe_get("lan_ifname"));
 146         }
 147
 148         TRACE_PT("end\n");
 149         return 1;
 150 }
 151
 152 #ifdef TCONFIG_IPV6
 153 int ip6up_main(int argc, char **argv)
 154 {
 155 /*
 156         char *wan_ifname;
 157         char *value;
 158
 159         TRACE_PT("begin\n");
 160         if (!wait_action_idle(10)) return -1;
 161
 162         wan_ifname = safe_getenv("IFNAME");
 163         if ((!wan_ifname) || (!*wan_ifname)) return -1;
 164
 165         value = getenv("LLREMOTE");
 166
 167         // ???
 168
 169         start_wan6_done(wan_ifname);
 170         TRACE_PT("end\n");
 171 */
 172         return 0;
 173 }
 174
 175 int ip6down_main(int argc, char **argv)
 176 {
 177 /*
 178         TRACE_PT("begin\n");
 179         if (!wait_action_idle(10)) return -1;
 180
 181         // ???
 182
 183         TRACE_PT("end\n");
 184 */
 185         return 1;
 186 }
 187 #endif  // IPV6
 188
 189 int pppevent_main(int argc, char **argv)
 190 {
 191         int i;
 192
 193         TRACE_PT("begin\n");
 194
 195         for (i = 1; i < argc; ++i) {
 196                 TRACE_PT("arg%d=%s\n", i, argv[i]);
 197                 if (strcmp(argv[i], "-t") == 0) {
 198                         if (++i >= argc) return 1;
 199                         if ((strcmp(argv[i], "PAP_AUTH_FAIL") == 0) || (strcmp(argv[i], "CHAP_AUTH_FAIL") == 0)) {
 200                                 f_write_string("/tmp/ppp/log", argv[i], 0, 0);
 201                                 return 0;
 202                         }
 203                         if ((strcmp(argv[i], "PADO_TIMEOUT") == 0) || (strcmp(argv[i], "PADS_TIMEOUT") == 0)) {
 204                                 f_write_string("/tmp/ppp/log", argv[i], 0, 0);
 205                                 return 0;
 206                         }
 207                 }
 208         }
 209
 210         TRACE_PT("end\n");
 211         return 1;
 212 }
 213
 214 #if 0
 215 int set_pppoepid_main(int argc, char **argv)
 216 {
 217         if (argc < 2) return 0;
 218
 219         TRACE_PT("num=%s\n", argv[1]);
 220
 221         if (atoi(argv[1]) != 0) return 0;
 222
 223         nvram_set("pppoe_pid0", getenv("PPPD_PID"));
 224         nvram_set("pppoe_ifname0", getenv("IFNAME"));
 225         nvram_set("wan_iface", getenv("IFNAME"));
 226
 227         TRACE_PT("IFNAME=%s DEVICE=%s\n", getenv("IFNAME"), getenv("DEVICE"));
 228         return 0;
 229 }
 230
 231 int pppoe_down_main(int argc, char **argv)
 232 {
 233         if (argc < 2) return 0;
 234
 235         TRACE_PT("num=%s\n", argv[1]);
 236
 237         if (atoi(argv[1]) != 0) return 0;
 238
 239         if ((nvram_get_int("ppp_demand")) && (nvram_match("action_service", "")))       {
 240                 stop_singe_pppoe(0);
 241                 start_pppoe(0);
 242
 243                 stop_dnsmasq();
 244                 dns_to_resolv();
 245                 start_dnsmasq();
 246         }
 247         return 0;
 248 }
 249 #endif  // 0