X-Git-Url: http://git.sameswireless.fr/l2tpns.git/blobdiff_plain/570e1b2fc235dec70602bed3cb64c6fef8dc0f82..5c8a7b96cae692a6aa83d2d3e8c6575250e30b0d:/l2tpns.c

diff --git a/l2tpns.c b/l2tpns.c
index 8fccdfc..545a3cd 100644
--- a/l2tpns.c
+++ b/l2tpns.c
@@ -4,7 +4,7 @@
 // Copyright (c) 2002 FireBrick (Andrews & Arnold Ltd / Watchfront Ltd) - GPL licenced
 // vim: sw=8 ts=8
 
-char const *cvs_id_l2tpns = "$Id: l2tpns.c,v 1.168 2006/06/22 15:30:29 bodea Exp $";
+char const *cvs_id_l2tpns = "$Id: l2tpns.c,v 1.172 2006/12/18 12:05:36 bodea Exp $";
 
 #include <arpa/inet.h>
 #include <assert.h>
@@ -82,9 +82,13 @@ uint16_t MSS = 0;		// TCP MSS
 struct cli_session_actions *cli_session_actions = NULL;	// Pending session changes requested by CLI
 struct cli_tunnel_actions *cli_tunnel_actions = NULL;	// Pending tunnel changes required by CLI
 
-static void *ip_hash[256];	// Mapping from IP address to session structures.
+union iphash {
+	sessionidt sess;
+	union iphash *idx;
+} ip_hash[256];			// Mapping from IP address to session structures.
+
 struct ipv6radix {
-	int sess;
+	sessionidt sess;
 	struct ipv6radix *branch;
 } ipv6_hash[256];		// Mapping from IPv6 address to session structures.
 
@@ -126,6 +130,8 @@ config_descriptt config_values[] = {
 	CONFIG("radius_secret", radiussecret, STRING),
 	CONFIG("radius_authtypes", radius_authtypes_s, STRING),
 	CONFIG("radius_dae_port", radius_dae_port, SHORT),
+	CONFIG("radius_bind_min", radius_bind_min, SHORT),
+	CONFIG("radius_bind_max", radius_bind_max, SHORT),
 	CONFIG("allow_duplicate_users", allow_duplicate_users, BOOL),
 	CONFIG("guest_account", guest_user, STRING),
 	CONFIG("bind_address", bind_address, IPv4),
@@ -187,9 +193,9 @@ struct Tstats *_statistics = NULL;
 struct Tringbuffer *ringbuffer = NULL;
 #endif
 
-static void cache_ipmap(in_addr_t ip, int s);
+static void cache_ipmap(in_addr_t ip, sessionidt s);
 static void uncache_ipmap(in_addr_t ip);
-static void cache_ipv6map(struct in6_addr ip, int prefixlen, int s);
+static void cache_ipv6map(struct in6_addr ip, int prefixlen, sessionidt s);
 static void free_ip_address(sessionidt s);
 static void dump_acct_info(int all);
 static void sighup_handler(int sig);
@@ -625,7 +631,7 @@ static void initudp(void)
 		int flags = fcntl(udpfd, F_GETFL, 0);
 		fcntl(udpfd, F_SETFL, flags | O_NONBLOCK);
 	}
-	if (bind(udpfd, (void *) &addr, sizeof(addr)) < 0)
+	if (bind(udpfd, (struct sockaddr *) &addr, sizeof(addr)) < 0)
 	{
 		LOG(0, 0, 0, "Error in UDP bind: %s\n", strerror(errno));
 		exit(1);
@@ -638,7 +644,7 @@ static void initudp(void)
 	controlfd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
 	setsockopt(controlfd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
 	setsockopt(controlfd, SOL_IP, IP_PKTINFO, &on, sizeof(on)); // recvfromto
-	if (bind(controlfd, (void *) &addr, sizeof(addr)) < 0)
+	if (bind(controlfd, (struct sockaddr *) &addr, sizeof(addr)) < 0)
 	{
 		LOG(0, 0, 0, "Error in control bind: %s\n", strerror(errno));
 		exit(1);
@@ -651,7 +657,7 @@ static void initudp(void)
 	daefd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
 	setsockopt(daefd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
 	setsockopt(daefd, SOL_IP, IP_PKTINFO, &on, sizeof(on)); // recvfromto
-	if (bind(daefd, (void *) &addr, sizeof(addr)) < 0)
+	if (bind(daefd, (struct sockaddr *) &addr, sizeof(addr)) < 0)
 	{
 		LOG(0, 0, 0, "Error in DAE bind: %s\n", strerror(errno));
 		exit(1);
@@ -676,19 +682,19 @@ static void initudp(void)
 // IP address.
 //
 
-static int lookup_ipmap(in_addr_t ip)
+static sessionidt lookup_ipmap(in_addr_t ip)
 {
 	uint8_t *a = (uint8_t *) &ip;
-	uint8_t **d = (uint8_t **) ip_hash;
+	union iphash *h = ip_hash;
 
-	if (!(d = (uint8_t **) d[(size_t) *a++])) return 0;
-	if (!(d = (uint8_t **) d[(size_t) *a++])) return 0;
-	if (!(d = (uint8_t **) d[(size_t) *a++])) return 0;
+	if (!(h = h[*a++].idx)) return 0;
+	if (!(h = h[*a++].idx)) return 0;
+	if (!(h = h[*a++].idx)) return 0;
 
-	return (int) (intptr_t) d[(size_t) *a];
+	return h[*a].sess;
 }
 
-static int lookup_ipv6map(struct in6_addr ip)
+static sessionidt lookup_ipv6map(struct in6_addr ip)
 {
 	struct ipv6radix *curnode;
 	int i;
@@ -716,18 +722,18 @@ static int lookup_ipv6map(struct in6_addr ip)
 
 sessionidt sessionbyip(in_addr_t ip)
 {
-	int s = lookup_ipmap(ip);
+	sessionidt s = lookup_ipmap(ip);
 	CSTAT(sessionbyip);
 
 	if (s > 0 && s < MAXSESSION && session[s].opened)
-		return (sessionidt) s;
+		return s;
 
 	return 0;
 }
 
 sessionidt sessionbyipv6(struct in6_addr ip)
 {
-	int s;
+	sessionidt s;
 	CSTAT(sessionbyipv6);
 
 	if (!memcmp(&config->ipv6_prefix, &ip, 8) ||
@@ -753,25 +759,22 @@ sessionidt sessionbyipv6(struct in6_addr ip)
 //
 // (It's actually cached in network order)
 //
-static void cache_ipmap(in_addr_t ip, int s)
+static void cache_ipmap(in_addr_t ip, sessionidt s)
 {
 	in_addr_t nip = htonl(ip);	// MUST be in network order. I.e. MSB must in be ((char *) (&ip))[0]
 	uint8_t *a = (uint8_t *) &nip;
-	uint8_t **d = (uint8_t **) ip_hash;
+	union iphash *h = ip_hash;
 	int i;
 
 	for (i = 0; i < 3; i++)
 	{
-		if (!d[(size_t) a[i]])
-		{
-			if (!(d[(size_t) a[i]] = calloc(256, sizeof(void *))))
-				return;
-		}
+		if (!(h[a[i]].idx || (h[a[i]].idx = calloc(256, sizeof(union iphash)))))
+			return;
 
-		d = (uint8_t **) d[(size_t) a[i]];
+		h = h[a[i]].idx;
 	}
 
-	d[(size_t) a[3]] = (uint8_t *) (intptr_t) s;
+	h[a[3]].sess = s;
 
 	if (s > 0)
 		LOG(4, s, session[s].tunnel, "Caching ip address %s\n", fmtaddr(nip, 0));
@@ -786,7 +789,7 @@ static void uncache_ipmap(in_addr_t ip)
 	cache_ipmap(ip, 0);	// Assign it to the NULL session.
 }
 
-static void cache_ipv6map(struct in6_addr ip, int prefixlen, int s)
+static void cache_ipv6map(struct in6_addr ip, int prefixlen, sessionidt s)
 {
 	int i;
 	int bytes;
@@ -827,7 +830,7 @@ static void cache_ipv6map(struct in6_addr ip, int prefixlen, int s)
 //
 int cmd_show_ipcache(struct cli_def *cli, char *command, char **argv, int argc)
 {
-	char **d = (char **) ip_hash, **e, **f, **g;
+	union iphash *d = ip_hash, *e, *f, *g;
 	int i, j, k, l;
 	int count = 0;
 
@@ -838,24 +841,28 @@ int cmd_show_ipcache(struct cli_def *cli, char *command, char **argv, int argc)
 
 	for (i = 0; i < 256; ++i)
 	{
-		if (!d[i])
+		if (!d[i].idx)
 			continue;
-		e = (char **) d[i];
+
+		e = d[i].idx;
 		for (j = 0; j < 256; ++j)
 		{
-			if (!e[j])
+			if (!e[j].idx)
 				continue;
-			f = (char **) e[j];
+
+			f = e[j].idx;
 			for (k = 0; k < 256; ++k)
 			{
-				if (!f[k])
+				if (!f[k].idx)
 					continue;
-				g = (char **)f[k];
+
+				g = f[k].idx;
 				for (l = 0; l < 256; ++l)
 				{
-					if (!g[l])
+					if (!g[l].sess)
 						continue;
-					cli_print(cli, "%7d %d.%d.%d.%d", (int) (intptr_t) g[l], i, j, k, l);
+
+					cli_print(cli, "%7d %d.%d.%d.%d", g[l].sess, i, j, k, l);
 					++count;
 				}
 			}
@@ -3046,37 +3053,6 @@ static void regular_cleanups(double period)
 			continue;
 		}
 
-		// check for timed out sessions
-		if (session[s].timeout)
-		{
-			bundleidt bid = session[s].bundle;
-			if (bid)
-			{
-				clockt curr_time = time_now;
-				if (curr_time - bundle[bid].last_check >= 1)
-				{
-					bundle[bid].online_time += (curr_time-bundle[bid].last_check)*bundle[bid].num_of_links;
-					bundle[bid].last_check = curr_time;
-					if (bundle[bid].online_time >= session[s].timeout)
-					{
-						int ses;
-						for (ses = bundle[bid].num_of_links - 1; ses >= 0; ses--)
-						{
-							sessionshutdown(bundle[bid].members[ses], "Session timeout", CDN_ADMIN_DISC, TERM_SESSION_TIMEOUT);
-							s_actions++;
-							continue;
-						}
-					}
-				}
-			}
-			else if (session[s].timeout <= time_now - session[s].opened)
-			{
-				sessionshutdown(s, "Session timeout", CDN_ADMIN_DISC, TERM_SESSION_TIMEOUT);
-				s_actions++;
-				continue;
-			}
-		}
-
 		// PPP timeouts
 		if (sess_local[s].lcp.restart <= time_now)
 		{
@@ -3219,12 +3195,33 @@ static void regular_cleanups(double period)
 		}
 
 		// Drop sessions who have reached session_timeout seconds
-		if (session[s].session_timeout && (time_now - session[s].opened >= session[s].session_timeout))
+		if (session[s].session_timeout)
 		{
-			sessionshutdown(s, "Session Timeout Reached", CDN_ADMIN_DISC, TERM_SESSION_TIMEOUT);
-			STAT(session_timeout);
-			s_actions++;
-			continue;
+			bundleidt bid = session[s].bundle;
+			if (bid)
+			{
+				if (time_now - bundle[bid].last_check >= 1)
+				{
+					bundle[bid].online_time += (time_now - bundle[bid].last_check) * bundle[bid].num_of_links;
+					bundle[bid].last_check = time_now;
+					if (bundle[bid].online_time >= session[s].session_timeout)
+					{
+						int ses;
+						for (ses = bundle[bid].num_of_links - 1; ses >= 0; ses--)
+						{
+							sessionshutdown(bundle[bid].members[ses], "Session timeout", CDN_ADMIN_DISC, TERM_SESSION_TIMEOUT);
+							s_actions++;
+							continue;
+						}
+					}
+				}
+			}
+			else if (time_now - session[s].opened >= session[s].session_timeout)
+			{
+				sessionshutdown(s, "Session timeout", CDN_ADMIN_DISC, TERM_SESSION_TIMEOUT);
+				s_actions++;
+				continue;
+			}
 		}
 
 		// Drop sessions who have reached idle_timeout seconds
@@ -3314,7 +3311,8 @@ static void regular_cleanups(double period)
 		if (config->radius_accounting && config->radius_interim > 0
 		    && session[s].ip && !session[s].walled_garden
 		    && !sess_local[s].radius // RADIUS already in progress
-		    && time_now - sess_local[s].last_interim >= config->radius_interim)
+		    && time_now - sess_local[s].last_interim >= config->radius_interim
+		    && session[s].flags & SESSION_STARTED)
 		{
 		    	int rad = radiusnew(s);
 			if (!rad)