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   5         This is UNPUBLISHED PROPRIETARY SOURCE CODE of CyberTAN Inc.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 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                         nvram_set("wan_ipaddr_buf", nvram_safe_get("wan_ipaddr"));              // store last ip address
  73                         nvram_set("wan_ipaddr", value);
  74                         nvram_set("wan_netmask", "255.255.255.255");
  75                         break;
  76                 case WP_PPTP:
  77                 case WP_L2TP:
  78                         nvram_set("wan_ipaddr_buf", nvram_safe_get("ppp_get_ip"));
  79                         break;
  80                 }
  81
  82                 if (!nvram_match("ppp_get_ip", value)) {
  83                         ifconfig(wan_ifname, IFUP, "0.0.0.0", NULL);
  84                         nvram_set("ppp_get_ip", value);
  85                 }
  86
  87                 _ifconfig(wan_ifname, IFUP, value, "255.255.255.255", (p && (*p)) ? p : NULL);
  88         }
  89
  90         buf[0] = 0;
  91         if ((p = getenv("DNS1")) != NULL) strlcpy(buf, p, sizeof(buf));
  92         if ((p = getenv("DNS2")) != NULL) {
  93                 if (buf[0]) strlcat(buf, " ", sizeof(buf));
  94                 strlcat(buf, p, sizeof(buf));
  95         }
  96         nvram_set("wan_get_dns", buf);
  97         TRACE_PT("DNS=%s\n", buf);
  98
  99         if ((value = getenv("AC_NAME"))) nvram_set("ppp_get_ac", value);
 100         if ((value = getenv("SRV_NAME"))) nvram_set("ppp_get_srv", value);
 101         if ((value = getenv("MTU"))) nvram_set("wan_run_mtu", value);
 102
 103         start_wan_done(wan_ifname);
 104
 105         TRACE_PT("end\n");
 106         return 0;
 107 }
 108
 109 int ipdown_main(int argc, char **argv)
 110 {
 111         int proto;
 112
 113         TRACE_PT("begin\n");
 114
 115         if (!wait_action_idle(10)) return -1;
 116
 117         stop_ddns();    // avoid to trigger DOD
 118         stop_ntpc();
 119
 120         unlink("/tmp/ppp/link");
 121
 122         proto = get_wan_proto();
 123         if (proto == WP_L2TP || proto == WP_PPTP) {
 124                 /* clear dns from the resolv.conf */
 125                 nvram_set("wan_get_dns","");
 126                 dns_to_resolv();
 127
 128                 if (proto == WP_L2TP) {
 129                         route_del(nvram_safe_get("wan_ifname"), 0, nvram_safe_get("l2tp_server_ip"),
 130                                 nvram_safe_get("wan_gateway"), "255.255.255.255"); // fixed routing problem in Israel by kanki
 131                 }
 132
 133                 // Restore the default gateway for WAN interface
 134                 nvram_set("wan_gateway_get", nvram_safe_get("wan_gateway"));
 135
 136                 // Set default route to gateway if specified
 137                 route_del(nvram_safe_get("wan_ifname"), 0, "0.0.0.0", nvram_safe_get("wan_gateway"), "0.0.0.0");
 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_get_int("ppp_demand")) {
 142                 killall("listen", SIGKILL);
 143                 eval("listen", nvram_safe_get("lan_ifname"));
 144         }
 145
 146         TRACE_PT("end\n");
 147         return 1;
 148 }
 149
 150 #ifdef TCONFIG_IPV6
 151 int ip6up_main(int argc, char **argv)
 152 {
 153 /*
 154         char *wan_ifname;
 155         char *value;
 156
 157         TRACE_PT("begin\n");
 158         if (!wait_action_idle(10)) return -1;
 159
 160         wan_ifname = safe_getenv("IFNAME");
 161         if ((!wan_ifname) || (!*wan_ifname)) return -1;
 162
 163         value = getenv("LLREMOTE");
 164
 165         // ???
 166
 167         start_wan6_done(wan_ifname);
 168         TRACE_PT("end\n");
 169 */
 170         return 0;
 171 }
 172
 173 int ip6down_main(int argc, char **argv)
 174 {
 175 /*
 176         TRACE_PT("begin\n");
 177         if (!wait_action_idle(10)) return -1;
 178
 179         // ???
 180
 181         TRACE_PT("end\n");
 182 */
 183         return 1;
 184 }
 185 #endif  // IPV6
 186
 187 int pppevent_main(int argc, char **argv)
 188 {
 189         int i;
 190
 191         TRACE_PT("begin\n");
 192
 193         for (i = 1; i < argc; ++i) {
 194                 TRACE_PT("arg%d=%s\n", i, argv[i]);
 195                 if (strcmp(argv[i], "-t") == 0) {
 196                         if (++i >= argc) return 1;
 197                         if ((strcmp(argv[i], "PAP_AUTH_FAIL") == 0) || (strcmp(argv[i], "CHAP_AUTH_FAIL") == 0)) {
 198                                 f_write_string("/tmp/ppp/log", argv[i], 0, 0);
 199                                 notice_set("wan", "Authentication failed");     // !!!
 200                                 return 0;
 201                         }
 202                 }
 203         }
 204
 205         TRACE_PT("end\n");
 206         return 1;
 207 }
 208
 209 #if 0
 210 int set_pppoepid_main(int argc, char **argv)
 211 {
 212         if (argc < 2) return 0;
 213
 214         TRACE_PT("num=%s\n", argv[1]);
 215
 216         if (atoi(argv[1]) != 0) return 0;
 217
 218         nvram_set("pppoe_pid0", getenv("PPPD_PID"));
 219         nvram_set("pppoe_ifname0", getenv("IFNAME"));
 220         nvram_set("wan_iface", getenv("IFNAME"));
 221
 222         TRACE_PT("IFNAME=%s DEVICE=%s\n", getenv("IFNAME"), getenv("DEVICE"));
 223         return 0;
 224 }
 225
 226 int pppoe_down_main(int argc, char **argv)
 227 {
 228         if (argc < 2) return 0;
 229
 230         TRACE_PT("num=%s\n", argv[1]);
 231
 232         if (atoi(argv[1]) != 0) return 0;
 233
 234         if ((nvram_get_int("ppp_demand")) && (nvram_match("action_service", "")))       {
 235                 stop_singe_pppoe(0);
 236                 start_pppoe(0);
 237
 238                 stop_dnsmasq();
 239                 dns_to_resolv();
 240                 start_dnsmasq();
 241         }
 242         return 0;
 243 }
 244 #endif  // 0