File dhcp-3.0.2-extended_option_environment.patch of Package dhcp

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File dhcp-3.0.2-extended_option_environment.patch of Package dhcp (Revision 808301904f5ce6ddb31de82e0c6b4396)

Currently displaying revision 808301904f5ce6ddb31de82e0c6b4396 , Show latest

--- dhcp-3.0.2/common/parse.c.extended_option_environment	2005-04-05 17:49:36.513062562 -0400
+++ dhcp-3.0.2/common/parse.c	2005-04-05 17:49:36.580052656 -0400
@@ -1270,6 +1270,10 @@
 	option_hash_add (option -> universe -> hash,
 			 (const char *)option -> name,
 			 0, option, MDL);
+#ifdef EXTENDED_NEW_OPTION_INFO
+	if ( new_option_info_tree != 0L )
+		add_new_option_info( option );
+#endif
 	return 1;
 }
 
--- dhcp-3.0.2/common/tables.c.extended_option_environment	2004-09-01 13:06:35.000000000 -0400
+++ dhcp-3.0.2/common/tables.c	2005-04-05 18:04:23.915838623 -0400
@@ -1238,3 +1238,40 @@
 			   fqdn_universe.name, 0,
 			   &fqdn_universe, MDL);
 }
+
+#ifdef EXTENDED_NEW_OPTION_INFO
+#include <search.h>
+
+void *new_option_info_tree = 0L;
+
+static int  new_option_info_comparator( const void* p1, const void *p2 )
+{
+	uint32_t ocode1 =  (((const struct option*)p1)->universe->index << 8)
+		          |(((const struct option*)p1)->code),
+		 ocode2 =  (((const struct option*)p2)->universe->index << 8)
+	                  |(((const struct option*)p2)->code);
+	return( (ocode1 == ocode2) 
+		? 0 
+		:( ( ocode1 > ocode2 )
+		   ?  1
+		   : -1
+	         )
+	      );
+}
+
+void *add_new_option_info( struct option *option )
+{
+	if ( option->universe->index >= fqdn_universe.index )
+		return 0L;
+	if ( new_option_info_tree == GENERATE_NEW_OPTION_INFO )
+		new_option_info_tree = (void*)0L;
+	return tsearch( option, &(new_option_info_tree), new_option_info_comparator );
+}
+
+void *lookup_new_option_info( struct option *option )
+{
+	if ( new_option_info_tree == GENERATE_NEW_OPTION_INFO )
+		return 0L;
+	return tfind( option, &(new_option_info_tree), new_option_info_comparator );
+}
+#endif
--- dhcp-3.0.2/includes/dhcpd.h.extended_option_environment	2004-11-24 12:39:16.000000000 -0500
+++ dhcp-3.0.2/includes/dhcpd.h	2005-04-05 17:49:36.613047777 -0400
@@ -1800,6 +1800,13 @@
 void initialize_common_option_spaces PROTO ((void));
 struct universe *config_universe;
 
+#ifdef EXTENDED_NEW_OPTION_INFO
+#define GENERATE_NEW_OPTION_INFO ((void*)1)
+extern void   *new_option_info_tree;
+extern void   *add_new_option_info( struct option*);
+extern void   *lookup_new_option_info( struct option *);
+#endif
+
 /* stables.c */
 #if defined (FAILOVER_PROTOCOL)
 extern failover_option_t null_failover_option;
--- dhcp-3.0.2/client/dhclient.c.extended_option_environment	2005-04-05 17:49:36.566054726 -0400
+++ dhcp-3.0.2/client/dhclient.c	2005-04-05 17:49:36.617047185 -0400
@@ -74,7 +74,9 @@
 int onetry=0;
 int quiet=0;
 int nowait=0;
-
+#ifdef EXTENDED_NEW_OPTION_INFO
+int extended_option_environment = 0;
+#endif
 static void usage PROTO ((void));
 
 void do_release(struct client_state *);
@@ -204,6 +206,11 @@
 		} else if (!strcmp (argv [i], "--version")) {
 			log_info ("isc-dhclient-%s", DHCP_VERSION);
 			exit (0);
+#ifdef EXTENDED_NEW_OPTION_INFO
+		} else if (!strcmp (argv [i], "-x")) {
+		    extended_option_environment = 1;
+		    new_option_info_tree = GENERATE_NEW_OPTION_INFO;
+#endif
  		} else if (argv [i][0] == '-') {
  		    usage ();
 		} else {
@@ -572,7 +579,11 @@
 	log_info (arr);
 	log_info (url);
 
+#ifdef EXTENDED_NEW_OPTION_INFO
+	log_error ("Usage: dhclient [-1dqr] [-nwx] [-p <port>] %s",
+#else
 	log_error ("Usage: dhclient [-1dqr] [-nw] [-p <port>] %s",
+#endif
 		   "[-s server]");
 	log_error ("                [-cf config-file] [-lf lease-file]%s",
 		   "[-pf pid-file] [-e VAR=val]");
@@ -2529,8 +2540,28 @@
 struct envadd_state {
 	struct client_state *client;
 	const char *prefix;
+        struct universe *universe;
 };
 
+#ifdef EXTENDED_NEW_OPTION_INFO			
+static 
+void build_universe_info_envvar
+(      struct option_cache *oc,
+       struct packet *p, struct lease *l,
+       struct client_state *client,
+       struct option_state *in_o,
+       struct option_state *cf_o,
+       struct binding_scope **scope,
+       struct universe *u, void *es	          
+)
+{
+    char info_name[512], info_data[512];
+    snprintf(info_name, 512, "%s._universe_.", oc->option->universe->name);
+    snprintf(info_data, 512, "%u:%s", oc->option->code,oc->option->format);
+    client_envadd( client, info_name, oc->option->name, info_data );
+}
+#endif
+
 void client_option_envadd (struct option_cache *oc,
 			   struct packet *packet, struct lease *lease,
 			   struct client_state *client_state,
@@ -2547,6 +2578,31 @@
 				   in_options, cfg_options, scope, oc, MDL)) {
 		if (data.len) {
 			char name [256];
+#ifdef EXTENDED_NEW_OPTION_INFO			
+			if (  extended_option_environment )
+			{
+				if(  ( oc->option->universe != &dhcp_universe )
+				   &&( oc->option->universe->index > fqdn_universe.index )
+				   &&( es->universe !=  oc->option->universe )
+			          )
+				{
+					es->universe = oc->option->universe;
+					(*(es->universe->foreach))
+					     (  (struct packet *)0, (struct lease *)0, 
+						client_state, 
+						in_options, cfg_options, 
+						scope, es->universe, es, 
+						build_universe_info_envvar
+					     );
+				}else
+				if ( lookup_new_option_info(oc->option) != 0L )			   
+					build_universe_info_envvar
+					      ( oc, packet, lease, client_state, 
+						in_options, cfg_options, scope,
+						oc->option->universe, es 
+					      );
+			}
+#endif
 			if (dhcp_option_ev_name (name, sizeof name,
 						 oc -> option)) {
 				client_envadd (es -> client, es -> prefix,
@@ -2575,6 +2631,7 @@
 
 	es.client = client;
 	es.prefix = prefix;
+	es.universe = 0L;
 
 	client_envadd (client,
 		       prefix, "ip_address", "%s", piaddr (lease -> address));
@@ -2788,7 +2845,14 @@
 			s = option -> name;
 			if (j + 1 == buflen)
 				return 0;
+#ifdef EXTENDED_NEW_OPTION_INFO
+			if ( ! extended_option_environment )
+			    buf [j++] = '_';
+			else
+			    buf [j++] = '.';
+#else
 			buf [j++] = '_';
+#endif
 		}
 		++i;
 	} while (i != 2);
--- dhcp-3.0.2/client/dhclient.8.extended_option_environment	2004-09-29 19:01:46.000000000 -0400
+++ dhcp-3.0.2/client/dhclient.8	2005-04-05 17:49:36.619046889 -0400
@@ -78,6 +78,9 @@
 .B -w
 ]
 [
+.B -x
+]
+[
 .I if0
 [
 .I ...ifN
@@ -252,6 +255,10 @@
 supplying the
 .B -nw
 flag.
+.PP
+The -x argument enables eXtended option information to be created in the
+-s dhclient-script environment, which would allow applications running 
+in that environment to handle options they do not know about in advance.
 .SH CONFIGURATION
 The syntax of the dhclient.conf(5) file is discussed separately.
 .SH OMAPI

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File dhcp-3.0.2-extended_option_environment.patch of Package dhcp (Revision 808301904f5ce6ddb31de82e0c6b4396)

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