X-Git-Url: http://git.sameswireless.fr/l2tpns.git/blobdiff_plain/eecccf0b30d5ec19960633d1b62cf5f9936d1f16..9da560ae8ef7f5a1c98884183440e36eb7fb0c15:/grpsess.c?ds=sidebyside

diff --git a/grpsess.c b/grpsess.c
index a26c489..7f897b3 100644
--- a/grpsess.c
+++ b/grpsess.c
@@ -12,6 +12,7 @@
 
 #include "l2tpns.h"
 #include "util.h"
+#include "cluster.h"
 
 #ifdef BGP
 #include "bgp.h"
@@ -22,7 +23,7 @@ union grp_iphash {
 	union grp_iphash *idx;
 } grp_ip_hash[256];			// Mapping from IP address to group structures.
 
-static groupidt gnextgrpid = 0;
+groupidt gnextgrpid = 0;
 
 // Find gruop by IP, < 1 for not found
 //
@@ -84,7 +85,7 @@ groupidt grp_groupbyip(in_addr_t ip)
 //
 // This adds it to the routing table, advertises it
 // via BGP if enabled, and stuffs it into the
-// 'sessionbyip' cache.
+// 'groupbyip' cache.
 //
 // 'ip' must be in _host_ order.
 //
@@ -128,7 +129,7 @@ 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));
@@ -153,7 +154,10 @@ static void grp_routeset(groupidt g, in_addr_t ip, int prefixlen, int add)
 			g = 0;	// Caching the session as '0' is the same as uncaching.
 
 		for (i = ip; i < ip+(1<<(32-prefixlen)) ; ++i)
+		{
 			grp_cache_ipmap(i, g);
+			if (!g) cache_ipmap(i, 0);
+		}
 	}
 }
 
@@ -212,7 +216,7 @@ void grp_removesession(groupidt g, sessionidt s)
 
 				if (gnextgrpid == g)
 				{
-					gnextgrpid = 0;
+					gnextgrpid = grpsession[g].prev;
 				}
 				else
 				{
@@ -228,6 +232,7 @@ void grp_removesession(groupidt g, sessionidt s)
 				}
 
 				memset(&grpsession[g], 0, sizeof(grpsession[0]));
+				grpsession[g].state = GROUPEFREE;
 			}
 			else
 			{
@@ -236,6 +241,8 @@ void grp_removesession(groupidt g, sessionidt s)
 						&grpsession[g].sesslist[i+1],
 						(grpsession[g].nbsession - i) * sizeof(grpsession[g].sesslist[i]));
 			}
+
+			cluster_send_groupe(g);
 			return;
 		}
 	}
@@ -270,6 +277,7 @@ static int grp_addsession(groupidt g, sessionidt s, uint8_t weight)
 			// it's the first session of the group, set to next group
 			grpsession[g].prev = gnextgrpid;
 			gnextgrpid = g;
+			grpsession[g].state = GROUPEOPEN;
 		}
 		grpsession[g].sesslist[i].sid = s;
 		grpsession[g].sesslist[i].weight = weight;
@@ -356,6 +364,9 @@ void grp_processvendorspecific(sessionidt s, uint8_t *pvs)
 			return;
 		}
 
+		if (grpid > config->cluster_highest_groupeid)
+			config->cluster_highest_groupeid = grpid;
+
 		n++;
 	}
 
@@ -420,6 +431,8 @@ void grp_processvendorspecific(sessionidt s, uint8_t *pvs)
 // Init data structures
 void grp_initdata()
 {
+	int i;
+
 	// Set default value (10s)
 	config->grp_txrate_average_time = 10;
 
@@ -430,6 +443,10 @@ void grp_initdata()
 	}
 
 	memset(grpsession, 0, sizeof(grpsession[0]) * MAXGROUPE);
+	for (i = 1; i < MAXGROUPE; i++)
+	{
+		grpsession[i].state = GROUPEUNDEF;
+	}
 }
 
 // Update time_changed of the group
@@ -483,7 +500,7 @@ 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 s = 0, s2 = 0, s3 = 0, smax = 0;
+	sessionidt s = 0, s2 = 0, s3 = 0;
 	int i;
 	uint32_t ltime_changed = 0, mintxrate = 0xFFFFFFFF, maxtxrate = 0;
 	uint32_t txrate;
@@ -491,35 +508,22 @@ sessionidt grp_getnextsession(groupidt g, in_addr_t ip)
 	if (g >= MAXGROUPE)
 		return 0;
 
-	if (grpsession[g].time_changed < config->grp_txrate_average_time)
-	{
-		if ((s = sessionbyip(ip)))
-		{
-			if ( (session[s].ppp.phase > Establish) &&
-				 (time_now - session[s].last_packet <= (config->echo_timeout + 1)) )
-			{
-				return s;
-			}
-			s = 0;
-		}
-	}
-	else
+	if (grpsession[g].time_changed >= config->grp_txrate_average_time)
 	{
 		// recalculation txrate
 		ltime_changed = grpsession[g].time_changed;
 		grpsession[g].time_changed = 0;
-		s = 0;
 		for (i = 0; i < grpsession[g].nbsession; i++)
 		{
 			if ((s2 = grpsession[g].sesslist[i].sid))
 			{
-				s3 = s2;
+				uint32_t coutgrp_delta = 0;
 
-				grpsession[g].sesslist[i].tx_rate = session[s2].coutgrp_delta/ltime_changed;
-				session[s2].coutgrp_delta = 0;
+				if (session[s2].cout >= grpsession[g].sesslist[i].prev_coutgrp)
+					coutgrp_delta = session[s2].cout - grpsession[g].sesslist[i].prev_coutgrp;
+				grpsession[g].sesslist[i].prev_coutgrp = session[s2].cout;
 
-				//LOG(3, s2, session[s2].tunnel, "TX Rate: %d session weight: %d\n",
-				//	grpsession[g].sesslist[i].tx_rate, grpsession[g].sesslist[i].weight);
+				grpsession[g].sesslist[i].tx_rate = coutgrp_delta/ltime_changed;
 
 				txrate = grpsession[g].sesslist[i].tx_rate/grpsession[g].sesslist[i].weight;
 				if (txrate < mintxrate)
@@ -527,7 +531,7 @@ sessionidt grp_getnextsession(groupidt g, in_addr_t ip)
 					if ( session[s2].ppp.phase > Establish &&
 						(time_now - session[s2].last_packet <= (config->echo_timeout + 1)) )
 					{
-						s = s2;
+						grpsession[g].smin = s2;
 						mintxrate = txrate;
 					}
 				}
@@ -537,16 +541,29 @@ sessionidt grp_getnextsession(groupidt g, in_addr_t ip)
 					if ( session[s2].ppp.phase > Establish &&
 					(time_now - session[s2].last_packet <= (config->echo_timeout + 1)) )
 					{
-						smax = s2;
+						grpsession[g].smax = s2;
 						maxtxrate = txrate;
 					}
 				}
 			}
 		}
+	}
 
-		if (smax && (maxtxrate != mintxrate))
+	if ((s = sessionbyip(ip)))
+	{
+		if (s == grpsession[g].smax)
 		{
-			grp_uncache_ipsession(g, smax);
+			s = grpsession[g].smin;
+			grpsession[g].smax = 0;
+		}
+		else if ( (session[s].ppp.phase > Establish) &&
+			 (time_now - session[s].last_packet <= (config->echo_timeout + 1)) )
+		{
+			return s;
+		}
+		else
+		{
+			s = 0;
 		}
 	}
 
@@ -564,7 +581,6 @@ sessionidt grp_getnextsession(groupidt g, in_addr_t ip)
 			(time_now - session[s2].last_packet <= (config->echo_timeout + 1)))
 		{
 			s = s2;
-			//LOG(3, s, session[s].tunnel, "New random session\n");
 		}
 		else
 		{
@@ -593,3 +609,66 @@ sessionidt grp_getnextsession(groupidt g, in_addr_t ip)
 
 	return s;
 }
+
+// load a groupe receive from master
+int grp_cluster_load_groupe(groupidt g, groupsesst *new)
+{
+	int i;
+	int updategroup = 0;
+
+	if (g >= MAXGROUPE)
+	{
+		LOG(0, 0, 0, "ERROR: Received a group id > MAXGROUPE!\n");
+		return 0;
+	}
+
+	if ((grpsession[g].nbroutesgrp != new->nbroutesgrp) ||
+		(grpsession[g].nbsession != new->nbsession))
+	{
+		updategroup = 1;
+	}
+
+	if (!updategroup)
+	{
+		// Check session list
+		for (i = 0; i < grpsession[g].nbsession; i++)
+		{
+			if (grpsession[g].sesslist[i].sid != new->sesslist[i].sid)
+			{
+				updategroup = 1;
+				break;
+			}
+		}
+	}
+
+	if (!updategroup)
+	{
+		// Check routes list
+		for (i = 0; i < grpsession[g].nbroutesgrp; i++)
+		{
+			if (grpsession[g].route[i].ip != new->route[i].ip)
+			{
+				updategroup = 1;
+				break;
+			}
+		}
+	}
+
+	// needs update
+	if (updategroup)
+	{
+		// Del all routes
+		grp_setgrouproute(g, 0);
+	}
+
+	memcpy(&grpsession[g], new, sizeof(grpsession[g]));	// Copy over..
+
+	// needs update
+	if (updategroup)
+	{
+		// Add all routes
+		grp_setgrouproute(g, 1);
+	}
+
+	return 1;
+}