Fix: improved load balancing algorithm

[l2tpns.git] / pppoe.c

diff --git a/pppoe.c b/pppoe.c
index 4b196ea..40e898e 100644 (file)
--- a/pppoe.c
+++ b/pppoe.c
@@ -21,6 +21,7 @@
 #include <netpacket/packet.h>
 #include <arpa/inet.h>
 #include <linux/if_pppox.h>
+#include <linux/rtnetlink.h>
 
 #include "l2tpns.h"
 #include "cluster.h"
@@ -502,20 +503,27 @@ static void pppoe_recv_PADI(uint8_t *pack, int size)
                return;
 
        len = ntohs(hdr->length);
-       for (n = 0; n < len; n += sizeof(*tag) + ntohs(tag->tag_len)) {
+       for (n = 0; n < len; n += sizeof(*tag) + ntohs(tag->tag_len))
+       {
                tag = (struct pppoe_tag *)(pack + ETH_HLEN + sizeof(*hdr) + n);
                if (n + sizeof(*tag) + ntohs(tag->tag_len) > len)
                        return;
-               switch (ntohs(tag->tag_type)) {
+               switch (ntohs(tag->tag_type))
+               {
                        case TAG_END_OF_LIST:
                                break;
                        case TAG_SERVICE_NAME:
-                               if (*config->pppoe_service_name && tag->tag_len)
+                               if (config->pppoe_only_equal_svc_name && *config->pppoe_service_name && !tag->tag_len)
+                               {
+                                       break;
+                               }
+                               else if (*config->pppoe_service_name && tag->tag_len)
                                {
                                        if (ntohs(tag->tag_len) != strlen(config->pppoe_service_name))
                                                break;
                                        if (memcmp(tag->tag_data, config->pppoe_service_name, ntohs(tag->tag_len)))
                                                break;
+                                       service_name_tag = tag;
                                        service_match = 1;
                                }
                                else
@@ -902,7 +910,6 @@ void process_pppoe_disc(uint8_t *pack, int size)
        }
 }
 
-#ifdef LAC
 // Forward from pppoe to l2tp remote LNS
 static void pppoe_forwardto_session_rmlns(uint8_t *pack, int size, sessionidt sess, uint16_t proto)
 {
@@ -1036,7 +1043,6 @@ void pppoe_forwardto_session_pppoe(uint8_t *pack, int size, sessionidt sess, uin
 
        tunnelsend(p, lpppoe, t); // send it....
 }
-#endif
 
 void process_pppoe_sess(uint8_t *pack, int size)
 {
@@ -1101,13 +1107,11 @@ void process_pppoe_sess(uint8_t *pack, int size)
                lppp -= 2;
        }
 
-#ifdef LAC
        if (session[sid].forwardtosession)
        {       // Must be forwaded to a remote lns tunnel l2tp
                pppoe_forwardto_session_rmlns(pack, size, sid, proto);
                return;
        }
-#endif
 
        if (proto == PPPPAP)
        {