notifier: Limit Counter Underflow

[framework/connectivity/connman.git] / src / rtnl.c

diff --git a/src/rtnl.c b/src/rtnl.c
index 07b570a..6002b5b 100644 (file)
--- a/src/rtnl.c
+++ b/src/rtnl.c
@@ -45,7 +45,7 @@
 #define ARPHDR_PHONET_PIPE (821)
 #endif
 
-#define print(arg...) do { } while (0)
+#define print(arg...) do { if (0) connman_info(arg); } while (0)
 //#define print(arg...) connman_info(arg)
 
 struct watch_data {
@@ -243,7 +243,7 @@ unsigned int connman_rtnl_add_newlink_watch(int index,
        DBG("id %d", watch->id);
 
        if (callback) {
-               unsigned int flags = __connman_ipconfig_get_flags(index);
+               unsigned int flags = __connman_ipconfig_get_flags_from_index(index);
 
                if (flags > 0)
                        callback(flags, 0, user_data);
@@ -283,14 +283,14 @@ static void trigger_rtnl(int index, void *user_data)
        struct connman_rtnl *rtnl = user_data;
 
        if (rtnl->newlink) {
-               unsigned short type = __connman_ipconfig_get_type(index);
-               unsigned int flags = __connman_ipconfig_get_flags(index);
+               unsigned short type = __connman_ipconfig_get_type_from_index(index);
+               unsigned int flags = __connman_ipconfig_get_flags_from_index(index);
 
                rtnl->newlink(type, index, flags, 0);
        }
 
        if (rtnl->newgateway) {
-               const char *gateway = __connman_ipconfig_get_gateway(index);
+               const char *gateway = __connman_ipconfig_get_gateway_from_index(index);
 
                if (gateway != NULL)
                        rtnl->newgateway(index, gateway);
@@ -633,7 +633,7 @@ static void process_deladdr(unsigned char family, unsigned char prefixlen,
                                        prefixlen, ip_string);
 }
 
-static void extract_route(struct rtmsg *msg, int bytes, int *index,
+static void extract_ipv4_route(struct rtmsg *msg, int bytes, int *index,
                                                struct in_addr *dst,
                                                struct in_addr *gateway)
 {
@@ -658,30 +658,79 @@ static void extract_route(struct rtmsg *msg, int bytes, int *index,
        }
 }
 
+static void extract_ipv6_route(struct rtmsg *msg, int bytes, int *index,
+                                               struct in6_addr *dst,
+                                               struct in6_addr *gateway)
+{
+       struct rtattr *attr;
+
+       for (attr = RTM_RTA(msg); RTA_OK(attr, bytes);
+                                       attr = RTA_NEXT(attr, bytes)) {
+               switch (attr->rta_type) {
+               case RTA_DST:
+                       if (dst != NULL)
+                               *dst = *((struct in6_addr *) RTA_DATA(attr));
+                       break;
+               case RTA_GATEWAY:
+                       if (gateway != NULL)
+                               *gateway =
+                                       *((struct in6_addr *) RTA_DATA(attr));
+                       break;
+               case RTA_OIF:
+                       if (index != NULL)
+                               *index = *((int *) RTA_DATA(attr));
+                       break;
+               }
+       }
+}
+
 static void process_newroute(unsigned char family, unsigned char scope,
                                                struct rtmsg *msg, int bytes)
 {
        GSList *list;
-       struct in_addr dst = { INADDR_ANY }, gateway = { INADDR_ANY };
-       char dststr[16], gatewaystr[16];
+       char dststr[INET6_ADDRSTRLEN], gatewaystr[INET6_ADDRSTRLEN];
        int index = -1;
 
-       if (family != AF_INET)
-               return;
+       if (family == AF_INET) {
+               struct in_addr dst = { INADDR_ANY }, gateway = { INADDR_ANY };
 
-       extract_route(msg, bytes, &index, &dst, &gateway);
+               extract_ipv4_route(msg, bytes, &index, &dst, &gateway);
 
-       inet_ntop(family, &dst, dststr, sizeof(dststr));
-       inet_ntop(family, &gateway, gatewaystr, sizeof(gatewaystr));
+               inet_ntop(family, &dst, dststr, sizeof(dststr));
+               inet_ntop(family, &gateway, gatewaystr, sizeof(gatewaystr));
 
-       __connman_ipconfig_newroute(index, family, scope, dststr, gatewaystr);
+               __connman_ipconfig_newroute(index, family, scope, dststr,
+                                                               gatewaystr);
 
-       /* skip host specific routes */
-       if (scope != RT_SCOPE_UNIVERSE &&
+               /* skip host specific routes */
+               if (scope != RT_SCOPE_UNIVERSE &&
                        !(scope == RT_SCOPE_LINK && dst.s_addr == INADDR_ANY))
-               return;
+                       return;
 
-       if (dst.s_addr != INADDR_ANY)
+               if (dst.s_addr != INADDR_ANY)
+                       return;
+
+       } else if (family == AF_INET6) {
+               struct in6_addr dst = IN6ADDR_ANY_INIT,
+                               gateway = IN6ADDR_ANY_INIT;
+
+               extract_ipv6_route(msg, bytes, &index, &dst, &gateway);
+
+               inet_ntop(family, &dst, dststr, sizeof(dststr));
+               inet_ntop(family, &gateway, gatewaystr, sizeof(gatewaystr));
+
+               __connman_ipconfig_newroute(index, family, scope, dststr,
+                                                               gatewaystr);
+
+               /* skip host specific routes */
+               if (scope != RT_SCOPE_UNIVERSE &&
+                       !(scope == RT_SCOPE_LINK &&
+                               IN6_IS_ADDR_UNSPECIFIED(&dst)))
+                       return;
+
+               if (!IN6_IS_ADDR_UNSPECIFIED(&dst))
+                       return;
+       } else
                return;
 
        for (list = rtnl_list; list; list = list->next) {
@@ -696,26 +745,49 @@ static void process_delroute(unsigned char family, unsigned char scope,
                                                struct rtmsg *msg, int bytes)
 {
        GSList *list;
-       struct in_addr dst = { INADDR_ANY }, gateway = { INADDR_ANY };
-       char dststr[16], gatewaystr[16];
+       char dststr[INET6_ADDRSTRLEN], gatewaystr[INET6_ADDRSTRLEN];
        int index = -1;
 
-       if (family != AF_INET)
-               return;
+       if (family == AF_INET) {
+               struct in_addr dst = { INADDR_ANY }, gateway = { INADDR_ANY };
 
-       extract_route(msg, bytes, &index, &dst, &gateway);
+               extract_ipv4_route(msg, bytes, &index, &dst, &gateway);
 
-       inet_ntop(family, &dst, dststr, sizeof(dststr));
-       inet_ntop(family, &gateway, gatewaystr, sizeof(gatewaystr));
+               inet_ntop(family, &dst, dststr, sizeof(dststr));
+               inet_ntop(family, &gateway, gatewaystr, sizeof(gatewaystr));
 
-       __connman_ipconfig_delroute(index, family, scope, dststr, gatewaystr);
+               __connman_ipconfig_delroute(index, family, scope, dststr,
+                                                               gatewaystr);
 
-       /* skip host specific routes */
-       if (scope != RT_SCOPE_UNIVERSE &&
+               /* skip host specific routes */
+               if (scope != RT_SCOPE_UNIVERSE &&
                        !(scope == RT_SCOPE_LINK && dst.s_addr == INADDR_ANY))
-               return;
+                       return;
+
+               if (dst.s_addr != INADDR_ANY)
+                       return;
+
+       }  else if (family == AF_INET6) {
+               struct in6_addr dst = IN6ADDR_ANY_INIT,
+                               gateway = IN6ADDR_ANY_INIT;
+
+               extract_ipv6_route(msg, bytes, &index, &dst, &gateway);
 
-       if (dst.s_addr != INADDR_ANY)
+               inet_ntop(family, &dst, dststr, sizeof(dststr));
+               inet_ntop(family, &gateway, gatewaystr, sizeof(gatewaystr));
+
+               __connman_ipconfig_delroute(index, family, scope, dststr,
+                                               gatewaystr);
+
+               /* skip host specific routes */
+               if (scope != RT_SCOPE_UNIVERSE &&
+                       !(scope == RT_SCOPE_LINK &&
+                               IN6_IS_ADDR_UNSPECIFIED(&dst)))
+                       return;
+
+               if (!IN6_IS_ADDR_UNSPECIFIED(&dst))
+                       return;
+       } else
                return;
 
        for (list = rtnl_list; list; list = list->next) {