From 498319e3f7885984a8a28d459eff55f65e557298 Mon Sep 17 00:00:00 2001
From: Kozlov Dmitry <xeb@mail.ru>
Date: Sun, 28 Aug 2011 22:39:26 +0400
Subject: radius: implemented ipv6 prefix delegation support

---
 accel-pppd/radius/attr_defs.h     |  1 +
 accel-pppd/radius/dict/dictionary |  1 +
 accel-pppd/radius/radius.c        | 28 ++++++++++++++++++++++++++++
 accel-pppd/radius/radius_p.h      |  1 +
 4 files changed, 31 insertions(+)

diff --git a/accel-pppd/radius/attr_defs.h b/accel-pppd/radius/attr_defs.h
index 779229e7..eb3c5de8 100644
--- a/accel-pppd/radius/attr_defs.h
+++ b/accel-pppd/radius/attr_defs.h
@@ -291,3 +291,4 @@
 #define Login_IPv6_Host 98
 #define Framed_IPv6_Route 99
 #define Framed_IPv6_Pool 100
+#define Delegated_IPv6_Prefix 123
diff --git a/accel-pppd/radius/dict/dictionary b/accel-pppd/radius/dict/dictionary
index 02eb7dea..15d7e15d 100644
--- a/accel-pppd/radius/dict/dictionary
+++ b/accel-pppd/radius/dict/dictionary
@@ -72,6 +72,7 @@ $INCLUDE dictionary.rfc3580
 $INCLUDE dictionary.rfc4072
 $INCLUDE dictionary.rfc4372
 $INCLUDE dictionary.rfc4679
+$INCLUDE dictionary.rfc4818
 $INCLUDE dictionary.rfc5176
 
 $INCLUDE dictionary.microsoft
diff --git a/accel-pppd/radius/radius.c b/accel-pppd/radius/radius.c
index 94f6447d..2a70327a 100644
--- a/accel-pppd/radius/radius.c
+++ b/accel-pppd/radius/radius.c
@@ -130,6 +130,12 @@ int rad_proc_attrs(struct rad_req_t *req)
 				a->addr = attr->val.ipv6prefix.prefix;
 				list_add_tail(&a->entry, &req->rpd->ipv6_addr.addr_list);
 				break;
+			case Delegated_IPv6_Prefix:
+				a = _malloc(sizeof(*a));
+				a->prefix_len = attr->val.ipv6prefix.len;
+				a->addr = attr->val.ipv6prefix.prefix;
+				list_add_tail(&a->entry, &req->rpd->ipv6_dp.prefix_list);
+				break;
 		}
 	}
 
@@ -195,6 +201,19 @@ static struct ipv6db_item_t *get_ipv6(struct ppp_t *ppp)
 	return NULL;
 }
 
+static struct ipv6db_prefix_t *get_ipv6_prefix(struct ppp_t *ppp)
+{
+	struct radius_pd_t *rpd = find_pd(ppp);
+
+	rpd->ipv6_dp.owner = &ipdb;
+
+	if (!list_empty(&rpd->ipv6_dp.prefix_list))
+		return &rpd->ipv6_dp;
+
+	return NULL;
+}
+
+
 
 static void session_timeout(struct triton_timer_t *t)
 {
@@ -221,6 +240,8 @@ static void ppp_starting(struct ppp_t *ppp)
 	pthread_mutex_init(&rpd->lock, NULL);
 	INIT_LIST_HEAD(&rpd->plugin_list);
 	INIT_LIST_HEAD(&rpd->ipv6_addr.addr_list);
+	INIT_LIST_HEAD(&rpd->ipv6_dp.prefix_list);
+
 	list_add_tail(&rpd->pd.entry, &ppp->pd_list);
 
 	pthread_rwlock_wrlock(&sessions_lock);
@@ -289,6 +310,12 @@ static void ppp_finished(struct ppp_t *ppp)
 		_free(a);
 	}
 
+	while (!list_empty(&rpd->ipv6_dp.prefix_list)) {
+		a = list_entry(rpd->ipv6_dp.prefix_list.next, typeof(*a), entry);
+		list_del(&a->entry);
+		_free(a);
+	}
+
 	list_del(&rpd->pd.entry);
 	
 	mempool_free(rpd);
@@ -436,6 +463,7 @@ void __export rad_register_plugin(struct ppp_t *ppp, struct rad_plugin_t *plugin
 static struct ipdb_t ipdb = {
 	.get_ipv4 = get_ipv4,
 	.get_ipv6 = get_ipv6,
+	.get_ipv6_prefix = get_ipv6_prefix,
 };
 
 static struct pwdb_t pwdb = {
diff --git a/accel-pppd/radius/radius_p.h b/accel-pppd/radius/radius_p.h
index f3f28e27..0a6261ee 100644
--- a/accel-pppd/radius/radius_p.h
+++ b/accel-pppd/radius/radius_p.h
@@ -35,6 +35,7 @@ struct radius_pd_t
 
 	struct ipv4db_item_t ipv4_addr;
 	struct ipv6db_item_t ipv6_addr;
+	struct ipv6db_prefix_t ipv6_dp;
 	int acct_interim_interval;
 	time_t acct_timestamp;
 
-- 
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