X-Git-Url: https://git.librecmc.org/?p=oweals%2Ftinc.git;a=blobdiff_plain;f=src%2Fprotocol_subnet.c;h=01aed64ef3e99cf24a84ce5a7532b00483f52183;hp=eef7e37430f9d8d5e8f2c8c10f688d19ceedd737;hb=2116c6eb7d328c7aa3ce3da54f95367e5199d373;hpb=c23fcf555ee4b69f03b76a0ffb731c3a475a77e7

diff --git a/src/protocol_subnet.c b/src/protocol_subnet.c
index eef7e37..01aed64 100644
--- a/src/protocol_subnet.c
+++ b/src/protocol_subnet.c
@@ -14,11 +14,9 @@
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     GNU General Public License for more details.
 
-    You should have received a copy of the GNU General Public License
-    along with this program; if not, write to the Free Software
-    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
-    $Id$
+    You should have received a copy of the GNU General Public License along
+    with this program; if not, write to the Free Software Foundation, Inc.,
+    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
 #include "system.h"
@@ -34,51 +32,47 @@
 #include "utils.h"
 #include "xalloc.h"
 
-bool send_add_subnet(connection_t *c, const subnet_t *subnet)
-{
+bool send_add_subnet(connection_t *c, const subnet_t *subnet) {
 	char netstr[MAXNETSTR];
 
-	cp();
-
-	if(!net2str(netstr, sizeof netstr, subnet))
+	if(!net2str(netstr, sizeof(netstr), subnet)) {
 		return false;
+	}
 
 	return send_request(c, "%d %x %s %s", ADD_SUBNET, rand(), subnet->owner->name, netstr);
 }
 
-bool add_subnet_h(connection_t *c)
-{
+bool add_subnet_h(connection_t *c) {
 	char subnetstr[MAX_STRING_SIZE];
 	char name[MAX_STRING_SIZE];
 	node_t *owner;
-	subnet_t s = {0}, *new;
-
-	cp();
+	subnet_t s = {}, *new, *old;
 
 	if(sscanf(c->buffer, "%*d %*x " MAX_STRING " " MAX_STRING, name, subnetstr) != 2) {
-		logger(LOG_ERR, _("Got bad %s from %s (%s)"), "ADD_SUBNET", c->name,
-			   c->hostname);
+		logger(LOG_ERR, "Got bad %s from %s (%s)", "ADD_SUBNET", c->name,
+		       c->hostname);
 		return false;
 	}
 
 	/* Check if owner name is valid */
 
 	if(!check_id(name)) {
-		logger(LOG_ERR, _("Got bad %s from %s (%s): %s"), "ADD_SUBNET", c->name,
-			   c->hostname, _("invalid name"));
+		logger(LOG_ERR, "Got bad %s from %s (%s): %s", "ADD_SUBNET", c->name,
+		       c->hostname, "invalid name");
 		return false;
 	}
 
 	/* Check if subnet string is valid */
 
 	if(!str2net(&s, subnetstr)) {
-		logger(LOG_ERR, _("Got bad %s from %s (%s): %s"), "ADD_SUBNET", c->name,
-			   c->hostname, _("invalid subnet string"));
+		logger(LOG_ERR, "Got bad %s from %s (%s): %s", "ADD_SUBNET", c->name,
+		       c->hostname, "invalid subnet string");
 		return false;
 	}
 
-	if(seen_request(c->buffer))
+	if(seen_request(c->buffer)) {
 		return true;
+	}
 
 	/* Check if the owner of the new subnet is in the connection list */
 
@@ -86,8 +80,8 @@ bool add_subnet_h(connection_t *c)
 
 	if(tunnelserver && owner != myself && owner != c->node) {
 		/* in case of tunnelserver, ignore indirect subnet registrations */
-		ifdebug(PROTOCOL) logger(LOG_WARNING, _("Ignoring indirect %s from %s (%s) for %s"),
-				   "ADD_SUBNET", c->name, c->hostname, subnetstr);
+		ifdebug(PROTOCOL) logger(LOG_WARNING, "Ignoring indirect %s from %s (%s) for %s",
+		                         "ADD_SUBNET", c->name, c->hostname, subnetstr);
 		return true;
 	}
 
@@ -99,42 +93,35 @@ bool add_subnet_h(connection_t *c)
 
 	/* Check if we already know this subnet */
 
-	if(lookup_subnet(owner, &s))
+	if(lookup_subnet(owner, &s)) {
 		return true;
+	}
 
 	/* If we don't know this subnet, but we are the owner, retaliate with a DEL_SUBNET */
 
 	if(owner == myself) {
-		ifdebug(PROTOCOL) logger(LOG_WARNING, _("Got %s from %s (%s) for ourself"),
-				   "ADD_SUBNET", c->name, c->hostname);
+		ifdebug(PROTOCOL) logger(LOG_WARNING, "Got %s from %s (%s) for ourself",
+		                         "ADD_SUBNET", c->name, c->hostname);
 		s.owner = myself;
 		send_del_subnet(c, &s);
 		return true;
 	}
 
-	/* In tunnel server mode, check if the subnet matches one in the config file of this node */
+	/* In tunnel server mode, we should already know all allowed subnets */
 
 	if(tunnelserver) {
-		config_t *cfg;
-		subnet_t *allowed;
-
-		for(cfg = lookup_config(c->config_tree, "Subnet"); cfg; cfg = lookup_config_next(c->config_tree, cfg)) {
-			if(!get_config_subnet(cfg, &allowed))
-				return false;
-
-			if(!subnet_compare(&s, allowed))
-				break;
-
-			free_subnet(allowed);
-		}
+		logger(LOG_WARNING, "Ignoring unauthorized %s from %s (%s): %s",
+		       "ADD_SUBNET", c->name, c->hostname, subnetstr);
+		return true;
+	}
 
-		if(!cfg) {
-			logger(LOG_WARNING, _("Unauthorized %s from %s (%s) for %s"),
-				"ADD_SUBNET", c->name, c->hostname, subnetstr);
-			return false;
-		}
+	/* Ignore if strictsubnets is true, but forward it to others */
 
-		free_subnet(allowed);
+	if(strictsubnets) {
+		logger(LOG_WARNING, "Ignoring unauthorized %s from %s (%s): %s",
+		       "ADD_SUBNET", c->name, c->hostname, subnetstr);
+		forward_request(c);
+		return true;
 	}
 
 	/* If everything is correct, add the subnet to the list of the owner */
@@ -142,62 +129,64 @@ bool add_subnet_h(connection_t *c)
 	*(new = new_subnet()) = s;
 	subnet_add(owner, new);
 
-	if(owner->status.reachable)
+	if(owner->status.reachable) {
 		subnet_update(owner, new, true);
+	}
 
 	/* Tell the rest */
 
-	if(!tunnelserver)
-		forward_request(c);
+	forward_request(c);
+
+	/* Fast handoff of roaming MAC addresses */
+
+	if(s.type == SUBNET_MAC && owner != myself && (old = lookup_subnet(myself, &s)) && old->expires) {
+		old->expires = now;
+	}
 
 	return true;
 }
 
-bool send_del_subnet(connection_t *c, const subnet_t *s)
-{
+bool send_del_subnet(connection_t *c, const subnet_t *s) {
 	char netstr[MAXNETSTR];
 
-	cp();
-
-	if(!net2str(netstr, sizeof netstr, s))
+	if(!net2str(netstr, sizeof(netstr), s)) {
 		return false;
+	}
 
 	return send_request(c, "%d %x %s %s", DEL_SUBNET, rand(), s->owner->name, netstr);
 }
 
-bool del_subnet_h(connection_t *c)
-{
+bool del_subnet_h(connection_t *c) {
 	char subnetstr[MAX_STRING_SIZE];
 	char name[MAX_STRING_SIZE];
 	node_t *owner;
-	subnet_t s = {0}, *find;
-
-	cp();
+	subnet_t s = {}, *find;
 
 	if(sscanf(c->buffer, "%*d %*x " MAX_STRING " " MAX_STRING, name, subnetstr) != 2) {
-		logger(LOG_ERR, _("Got bad %s from %s (%s)"), "DEL_SUBNET", c->name,
-			   c->hostname);
+		logger(LOG_ERR, "Got bad %s from %s (%s)", "DEL_SUBNET", c->name,
+		       c->hostname);
 		return false;
 	}
 
 	/* Check if owner name is valid */
 
 	if(!check_id(name)) {
-		logger(LOG_ERR, _("Got bad %s from %s (%s): %s"), "DEL_SUBNET", c->name,
-			   c->hostname, _("invalid name"));
+		logger(LOG_ERR, "Got bad %s from %s (%s): %s", "DEL_SUBNET", c->name,
+		       c->hostname, "invalid name");
 		return false;
 	}
 
 	/* Check if subnet string is valid */
 
 	if(!str2net(&s, subnetstr)) {
-		logger(LOG_ERR, _("Got bad %s from %s (%s): %s"), "DEL_SUBNET", c->name,
-			   c->hostname, _("invalid subnet string"));
+		logger(LOG_ERR, "Got bad %s from %s (%s): %s", "DEL_SUBNET", c->name,
+		       c->hostname, "invalid subnet string");
 		return false;
 	}
 
-	if(seen_request(c->buffer))
+	if(seen_request(c->buffer)) {
 		return true;
+	}
 
 	/* Check if the owner of the subnet being deleted is in the connection list */
 
@@ -205,14 +194,14 @@ bool del_subnet_h(connection_t *c)
 
 	if(tunnelserver && owner != myself && owner != c->node) {
 		/* in case of tunnelserver, ignore indirect subnet deletion */
-		ifdebug(PROTOCOL) logger(LOG_WARNING, _("Ignoring indirect %s from %s (%s) for %s"),
-                                  "DEL_SUBNET", c->name, c->hostname, subnetstr);
+		ifdebug(PROTOCOL) logger(LOG_WARNING, "Ignoring indirect %s from %s (%s) for %s",
+		                         "DEL_SUBNET", c->name, c->hostname, subnetstr);
 		return true;
 	}
 
 	if(!owner) {
-		ifdebug(PROTOCOL) logger(LOG_WARNING, _("Got %s from %s (%s) for %s which is not in our node tree"),
-				   "DEL_SUBNET", c->name, c->hostname, name);
+		ifdebug(PROTOCOL) logger(LOG_WARNING, "Got %s from %s (%s) for %s which is not in our node tree",
+		                         "DEL_SUBNET", c->name, c->hostname, name);
 		return true;
 	}
 
@@ -223,29 +212,42 @@ bool del_subnet_h(connection_t *c)
 	find = lookup_subnet(owner, &s);
 
 	if(!find) {
-		ifdebug(PROTOCOL) logger(LOG_WARNING, _("Got %s from %s (%s) for %s which does not appear in his subnet tree"),
-				   "DEL_SUBNET", c->name, c->hostname, name);
+		ifdebug(PROTOCOL) logger(LOG_WARNING, "Got %s from %s (%s) for %s which does not appear in his subnet tree",
+		                         "DEL_SUBNET", c->name, c->hostname, name);
+
+		if(strictsubnets) {
+			forward_request(c);
+		}
+
 		return true;
 	}
 
 	/* If we are the owner of this subnet, retaliate with an ADD_SUBNET */
 
 	if(owner == myself) {
-		ifdebug(PROTOCOL) logger(LOG_WARNING, _("Got %s from %s (%s) for ourself"),
-				   "DEL_SUBNET", c->name, c->hostname);
+		ifdebug(PROTOCOL) logger(LOG_WARNING, "Got %s from %s (%s) for ourself",
+		                         "DEL_SUBNET", c->name, c->hostname);
 		send_add_subnet(c, find);
 		return true;
 	}
 
+	if(tunnelserver) {
+		return true;
+	}
+
 	/* Tell the rest */
 
-	if(!tunnelserver)
-		forward_request(c);
+	forward_request(c);
+
+	if(strictsubnets) {
+		return true;
+	}
 
 	/* Finally, delete it. */
 
-	if(owner->status.reachable)
+	if(owner->status.reachable) {
 		subnet_update(owner, find, false);
+	}
 
 	subnet_del(owner, find);