X-Git-Url: http://git.sameswireless.fr/l2tpns.git/blobdiff_plain/ff1db279d1faf8ccbb146326d115ca5e39c3bde6..5e65215ed4758c8fcd26ecaadc4b6121b93dab1c:/ppp.c

diff --git a/ppp.c b/ppp.c
index 2343ad3..fb74ba9 100644
--- a/ppp.c
+++ b/ppp.c
@@ -12,6 +12,10 @@
 #include "tbf.h"
 #include "cluster.h"
 
+#ifdef LAC
+#include "l2tplac.h"
+#endif
+
 extern tunnelt *tunnel;
 extern bundlet *bundle;
 extern fragmentationt *frag;
@@ -21,6 +25,7 @@ extern int tunfd;
 extern char hostname[];
 extern uint32_t eth_tx;
 extern time_t time_now;
+extern uint64_t time_now_ms;
 extern configt *config;
 
 static int add_lcp_auth(uint8_t *b, int size, int authtype);
@@ -99,6 +104,14 @@ void processpap(sessionidt s, tunnelidt t, uint8_t *p, uint16_t l)
 		LOG(3, s, t, "PAP login %s/%s\n", user, pass);
 	}
 
+#ifdef LAC
+	if ((!config->disable_lac_func) && lac_conf_forwardtoremotelns(s, user))
+	{
+		// Creating a tunnel/session has been started
+		return;
+	}
+#endif
+
 	if (session[s].ip || !(r = radiusnew(s)))
 	{
 		// respond now, either no RADIUS available or already authenticated
@@ -250,6 +263,16 @@ void processchap(sessionidt s, tunnelidt t, uint8_t *p, uint16_t l)
 		packet.username = calloc(l + 1, 1);
 		memcpy(packet.username, p, l);
 
+#ifdef LAC
+		if ((!config->disable_lac_func) && lac_conf_forwardtoremotelns(s, packet.username))
+		{
+			free(packet.username);
+			free(packet.password);
+			// Creating a tunnel/session has been started
+			return;
+		}
+#endif
+
 		run_plugins(PLUGIN_PRE_AUTH, &packet);
 		if (!packet.continue_auth)
 		{
@@ -1876,6 +1899,14 @@ void processmpin(sessionidt s, tunnelidt t, uint8_t *p, uint16_t l)
 	
 	sess_local[s].last_seq = seq_num;
 
+	// calculate the jitter average
+	uint32_t ljitter = time_now_ms - sess_local[s].prev_time;
+	if (ljitter > 0)
+	{
+		sess_local[s].jitteravg = (sess_local[s].jitteravg + ljitter)>>1;
+		sess_local[s].prev_time = time_now_ms;
+	}
+
 	uint32_t Mmin;
 
 	if (seq_num < this_fragmentation->M)
@@ -1902,7 +1933,7 @@ void processmpin(sessionidt s, tunnelidt t, uint8_t *p, uint16_t l)
 	{
 		// There have a long break of the link !!!!!!!!
 		// M_offset is bigger that the fragmentation buffer size
-		LOG(3, s, t, "MPPP: M_offset out of range, min:%d, begin_seq:%d\n", Mmin, this_fragmentation->start_seq);
+		LOG(3, s, t, "MPPP: M_offset out of range, min:%d, begin_seq:%d, jitteravg:%d\n", Mmin, this_fragmentation->start_seq, sess_local[s].jitteravg);
 
 		// Calculate the new start index, the previous frag are lost
 		begin_index = (M_offset + this_fragmentation->start_index) & MAXFRAGNUM_MASK;
@@ -1927,7 +1958,7 @@ void processmpin(sessionidt s, tunnelidt t, uint8_t *p, uint16_t l)
 	if (frag_offset >= MAXFRAGNUM)
 	{
 		// frag_offset is bigger that the fragmentation buffer size
-		LOG(3, s, t, "MPPP: Index out of range, seq:%d, begin_seq:%d, size frag:%d\n", seq_num, this_fragmentation->start_seq, l);
+		LOG(3, s, t, "MPPP: Index out of range, seq:%d, begin_seq:%d, jitteravg:%d\n", seq_num, this_fragmentation->start_seq, sess_local[s].jitteravg);
 		return;
 	}
 
@@ -1939,13 +1970,15 @@ void processmpin(sessionidt s, tunnelidt t, uint8_t *p, uint16_t l)
 
 	if (this_frag->length > 0)
 		// This fragment is lost, It was around the buffer and it was never completed the packet.
-		LOG(3, this_frag->sid, this_frag->tid, "MPPP: (INSERT) seq_num:%d frag_index:%d flags:%d is LOST\n",
-			this_frag->seq, frag_index, this_frag->flags);
+		LOG(3, this_frag->sid, this_frag->tid, "MPPP: (INSERT) seq_num:%d frag_index:%d flags:%d jitteravg:%d is LOST\n",
+			this_frag->seq, frag_index, this_frag->flags, this_frag->jitteravg);
 
 	this_frag->length = l;
 	this_frag->sid = s;
+	this_frag->tid = t;
 	this_frag->flags = flags;
 	this_frag->seq = seq_num;
+	this_frag->jitteravg = sess_local[s].jitteravg;
 	memcpy(this_frag->data, p, l);
 
 	LOG(4, s, t, "MPPP: seq_num:%d frag_index:%d INSERTED flags: %02X\n",  seq_num, frag_index, flags);
@@ -1967,8 +2000,9 @@ void processmpin(sessionidt s, tunnelidt t, uint8_t *p, uint16_t l)
 		{
 			// This fragment is lost, It was around the buffer and it was never completed the packet.
 			LOG(3, this_fragmentation->fragment[frag_index_next].sid, this_fragmentation->fragment[frag_index_next].tid,
-				"MPPP: (NEXT) seq_num:%d frag_index:%d flags:%d is LOST\n",
-				this_fragmentation->fragment[frag_index_next].seq, frag_index_next, this_fragmentation->fragment[frag_index_next].flags);
+				"MPPP: (NEXT) seq_num:%d frag_index:%d flags:%d jitteravg:%d is LOST\n",
+				this_fragmentation->fragment[frag_index_next].seq, frag_index_next,
+				this_fragmentation->fragment[frag_index_next].flags, this_fragmentation->fragment[frag_index_next].jitteravg);
 			// this frag is lost
 			this_fragmentation->fragment[frag_index_next].length = 0;
 			this_fragmentation->fragment[frag_index_next].flags = 0;
@@ -1985,8 +2019,9 @@ void processmpin(sessionidt s, tunnelidt t, uint8_t *p, uint16_t l)
 		{
 			// This fragment is lost, It was around the buffer and it was never completed the packet.
 			LOG(3, this_fragmentation->fragment[frag_index_prev].sid, this_fragmentation->fragment[frag_index_prev].tid,
-				"MPPP: (PREV) seq_num:%d frag_index:%d flags:%d is LOST\n",
-				this_fragmentation->fragment[frag_index_prev].seq, frag_index_prev, this_fragmentation->fragment[frag_index_prev].flags);
+				"MPPP: (PREV) seq_num:%d frag_index:%d flags:%d jitteravg:%d is LOST\n",
+				this_fragmentation->fragment[frag_index_prev].seq, frag_index_prev,
+				this_fragmentation->fragment[frag_index_prev].flags, this_fragmentation->fragment[frag_index_prev].jitteravg);
 
 			this_fragmentation->fragment[frag_index_prev].length = 0;
 			this_fragmentation->fragment[frag_index_prev].flags = 0;
@@ -2030,8 +2065,9 @@ find_frame:
 							{
 								// This fragment is lost, it was never completed the packet.
 								LOG(3, this_fragmentation->fragment[end_index].sid, this_fragmentation->fragment[end_index].tid,
-									"MPPP: (FIND END) seq_num:%d frag_index:%d flags:%d is LOST\n",
-									this_fragmentation->fragment[end_index].seq, begin_index, this_fragmentation->fragment[end_index].flags);
+									"MPPP: (FIND END) seq_num:%d frag_index:%d flags:%d jitteravg:%d is LOST\n",
+									this_fragmentation->fragment[end_index].seq, begin_index,
+									this_fragmentation->fragment[end_index].flags, this_fragmentation->fragment[end_index].jitteravg);
 								// this frag is lost
 								this_fragmentation->fragment[end_index].length = 0;
 								this_fragmentation->fragment[end_index].flags = 0;
@@ -2060,8 +2096,9 @@ find_frame:
 			{
 				// This fragment is lost, it was never completed the packet.
 				LOG(3, this_fragmentation->fragment[begin_index].sid, this_fragmentation->fragment[begin_index].tid,
-					"MPPP: (FIND BEGIN) seq_num:%d frag_index:%d flags:%d is LOST\n",
-					this_fragmentation->fragment[begin_index].seq, begin_index, this_fragmentation->fragment[begin_index].flags);
+					"MPPP: (FIND BEGIN) seq_num:%d frag_index:%d flags:%d jitteravg:%d is LOST\n",
+					this_fragmentation->fragment[begin_index].seq, begin_index,
+					this_fragmentation->fragment[begin_index].flags, this_fragmentation->fragment[begin_index].jitteravg);
 				// this frag is lost
 				this_fragmentation->fragment[begin_index].length = 0;
 				this_fragmentation->fragment[begin_index].flags = 0;
@@ -2072,7 +2109,7 @@ find_frame:
 	}
 
 assembling_frame:
-	// try to assemble the frame that has the received fragment as a member		
+	// try to assemble the frame that has the received fragment as a member
 	// get the beginning of this frame
 	begin_index = end_index = this_fragmentation->start_index;
 	if (this_fragmentation->fragment[begin_index].length)
@@ -2157,8 +2194,9 @@ assembling_frame:
 		(this_fragmentation->fragment[begin_index].seq != this_fragmentation->start_seq))
 	{
 		LOG(3, this_fragmentation->fragment[begin_index].sid, this_fragmentation->fragment[begin_index].tid,
-				"MPPP: (START) seq_num:%d frag_index:%d flags:%d is LOST\n",
-				this_fragmentation->fragment[begin_index].seq, begin_index, this_fragmentation->fragment[begin_index].flags);
+				"MPPP: (START) seq_num:%d frag_index:%d flags:%d jitteravg:%d is LOST\n",
+				this_fragmentation->fragment[begin_index].seq, begin_index,
+				this_fragmentation->fragment[begin_index].flags, this_fragmentation->fragment[begin_index].jitteravg);
 			this_fragmentation->fragment[begin_index].length = 0;
 			this_fragmentation->fragment[begin_index].flags = 0;
 	}