ip-up-vpn: remove the code of generating routing rules.

They will be generated by LegacyVpnRunner.

Change-Id: I85a087440b6214aa9ada5db9c3ecc4e18f042313

1 files changed, 9 insertions, 63 deletions

diff --git a/android/ip-up-vpn.c b/android/ip-up-vpn.c
index afc85f4..bbf6b14 100644
--- a/android/ip-up-vpn.c
+++ b/android/ip-up-vpn.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2009 The Android Open Source Project
+ * Copyright (C) 2011 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -17,73 +17,19 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include <errno.h>
-#include <sys/ioctl.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#include <linux/route.h>
 
-#include <android/log.h>
 #include <cutils/properties.h>
 
-static inline struct in_addr *in_addr(struct sockaddr *sa)
-{
-    return &((struct sockaddr_in *)sa)->sin_addr;
-}
-
 int main(int argc, char **argv)
 {
-    struct rtentry route = {
-        .rt_dst     = {.sa_family = AF_INET},
-        .rt_genmask = {.sa_family = AF_INET},
-        .rt_gateway = {.sa_family = AF_INET},
-        .rt_flags   = RTF_UP | RTF_GATEWAY,
-    };
-    FILE *f;
-    int s;
-
-    errno = EINVAL;
-    if (argc > 5 && inet_aton(argv[5], in_addr(&route.rt_gateway)) &&
-        (f = fopen("/proc/net/route", "r")) != NULL &&
-        (s = socket(AF_INET, SOCK_DGRAM, 0)) != -1) {
-        uint32_t *address = &in_addr(&route.rt_dst)->s_addr;
-        uint32_t *netmask = &in_addr(&route.rt_genmask)->s_addr;
-        char device[64];
-
-        fscanf(f, "%*[^\n]\n");
-        while (fscanf(f, "%63s%X%*X%*X%*d%*u%*d%X%*d%*u%*u\n",
-                      device, address, netmask) == 3) {
-            if (strcmp(argv[1], device)) {
-                uint32_t bit = ntohl(*netmask);
-                bit = htonl(bit ^ (1 << 31 | bit >> 1));
-                if (bit) {
-                    *netmask |= bit;
-                    if (ioctl(s, SIOCADDRT, &route) == -1 && errno != EEXIST) {
-                        break;
-                    }
-                    *address ^= bit;
-                    if (ioctl(s, SIOCADDRT, &route) == -1 && errno != EEXIST) {
-                        break;
-                    }
-                    errno = 0;
-                }
-            }
-        }
-    }
+    if (argc > 1 && strlen(argv[1]) > 0) {
+        char dns[PROPERTY_VALUE_MAX];
+        char *dns1 = getenv("DNS1");
+        char *dns2 = getenv("DNS2");
 
-    if (!errno) {
-        char *dns = getenv("DNS1");
-        property_set("vpn.dns1", dns ? dns : "");
-        dns = getenv("DNS2");
-        property_set("vpn.dns2", dns ? dns : "");
-        property_set("vpn.status", "ok");
-        __android_log_print(ANDROID_LOG_INFO, "ip-up-vpn",
-                            "All traffic is now redirected to %s", argv[5]);
-    } else {
-        property_set("vpn.status", "error");
-        __android_log_write(ANDROID_LOG_ERROR, "ip-up-vpn", strerror(errno));
+        snprintf(dns, sizeof(dns), "%s %s", dns1 ? dns1 : "", dns2 ? dns2 : "");
+        property_set("vpn.dns", dns);
+        property_set("vpn.via", argv[1]);
     }
-    return errno;
+    return 0;
 }