X-Git-Url: http://git.sameswireless.fr/l2tpns.git/blobdiff_plain/916c13c6039bd189873ee094e9c0ebd010899792..bb40243c71b99c8bbb08deb95c68b7af9b7bb0d4:/grpsess.c

diff --git a/grpsess.c b/grpsess.c
index 73c729a..f38ab1a 100644
--- a/grpsess.c
+++ b/grpsess.c
@@ -42,6 +42,14 @@ static groupidt grp_lookup_ipmap(in_addr_t ip)
 	return h[*a].grp;
 }
 
+typedef struct
+{
+	sessionidt sid_loaddist[0x10000];
+}
+local_group;
+
+local_group *grp_local = NULL;		// Array of local_group structures.
+
 //
 // Take an IP address in HOST byte order and
 // add it to the grouid by IP cache.
@@ -129,7 +137,7 @@ static void grp_routeset(groupidt g, in_addr_t ip, int prefixlen, int add)
 	n_ip = htonl(ip);
 	netlink_addattr(&req.nh, RTA_DST, &n_ip, sizeof(n_ip));
 
-	LOG(1, 0, 0, "Route (Group) %s %s/%d\n", add ? "add" : "del", fmtaddr(htonl(ip), 0), prefixlen);
+	LOG(3, 0, 0, "Route (Group) %s %s/%d\n", add ? "add" : "del", fmtaddr(htonl(ip), 0), prefixlen);
 
 	if (netlink_send(&req.nh) < 0)
 		LOG(0, 0, 0, "grp_routeset() error in sending netlink message: %s\n", strerror(errno));
@@ -447,6 +455,14 @@ void grp_initdata()
 	{
 		grpsession[i].state = GROUPEUNDEF;
 	}
+
+	if (!(grp_local = shared_malloc(sizeof(local_group) * MAXGROUPE)))
+	{
+		LOG(0, 0, 0, "Error doing malloc for grp_local: %s\n", strerror(errno));
+		exit(1);
+	}
+	memset(grp_local, 0, sizeof(grp_local[0]) * MAXGROUPE);
+
 }
 
 // Update time_changed of the group
@@ -498,7 +514,7 @@ static void grp_uncache_ipsession(groupidt g, sessionidt s)
 }
 
 // return the next session can be used on the group
-sessionidt grp_getnextsession(groupidt g, in_addr_t ip)
+sessionidt grp_getnextsession(groupidt g, in_addr_t ip, in_addr_t ip_src)
 {
 	sessionidt s = 0, s2 = 0, s3 = 0;
 	int i;
@@ -551,9 +567,30 @@ sessionidt grp_getnextsession(groupidt g, in_addr_t ip)
 
 	if ((s = sessionbyip(ip)))
 	{
-		if (s == grpsession[g].smax)
+		uint8_t *as = (uint8_t *) &ip_src;
+		uint8_t *ad = (uint8_t *) &ip;
+		uint16_t ai = ad[3];
+		ai <<= 8;
+		ai &= as[3];
+
+		s = grp_local[g].sid_loaddist[ai];
+		if (!s)
+		{
+			s = grpsession[g].smin;
+			grp_local[g].sid_loaddist[ai] = s;
+		}
+
+		if (g != grp_groupbysession(s))
+		{
+			// This session does not belong to this group
+			LOG(2, s, session[s].tunnel, "Warning, the session does not belong to group %d\n", g);
+			s = 0;
+			grp_local[g].sid_loaddist[ai] = 0;
+		}
+		else if (s == grpsession[g].smax)
 		{
 			s = grpsession[g].smin;
+			grp_local[g].sid_loaddist[ai] = s;
 			grpsession[g].smax = 0;
 		}
 		else if ( (session[s].ppp.phase > Establish) &&
@@ -564,6 +601,7 @@ sessionidt grp_getnextsession(groupidt g, in_addr_t ip)
 		else
 		{
 			s = 0;
+			grp_local[g].sid_loaddist[ai] = 0;
 		}
 	}
 
@@ -633,7 +671,7 @@ int grp_cluster_load_groupe(groupidt g, groupsesst *new)
 		// Check session list
 		for (i = 0; i < grpsession[g].nbsession; i++)
 		{
-			if (grpsession[g].sesslist[i].sid == new->sesslist[i].sid)
+			if (grpsession[g].sesslist[i].sid != new->sesslist[i].sid)
 			{
 				updategroup = 1;
 				break;