From: Tobias Brunner <tobias@strongswan.org>
Date: Wed, 12 Oct 2016 07:24:49 +0000 (+0200)
Subject: kernel-interface: Add method to enumerate locally attached subnets
X-Git-Tag: 5.5.2dr5~23^2~7
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=324fc2cb522926e8f6c9c0076c7410beb025b3cb;p=thirdparty%2Fstrongswan.git

kernel-interface: Add method to enumerate locally attached subnets
---

diff --git a/src/libcharon/kernel/kernel_interface.c b/src/libcharon/kernel/kernel_interface.c
index 7b39a020c8..ea5af9eb8a 100644
--- a/src/libcharon/kernel/kernel_interface.c
+++ b/src/libcharon/kernel/kernel_interface.c
@@ -554,6 +554,16 @@ METHOD(kernel_interface_t, create_address_enumerator, enumerator_t*,
 	return this->net->create_address_enumerator(this->net, which);
 }
 
+METHOD(kernel_interface_t, create_local_subnet_enumerator, enumerator_t*,
+	private_kernel_interface_t *this)
+{
+	if (!this->net || !this->net->create_local_subnet_enumerator)
+	{
+		return enumerator_create_empty();
+	}
+	return this->net->create_local_subnet_enumerator(this->net);
+}
+
 METHOD(kernel_interface_t, add_ip, status_t,
 	private_kernel_interface_t *this, host_t *virtual_ip, int prefix,
 	char *iface)
@@ -1005,6 +1015,7 @@ kernel_interface_t *kernel_interface_create()
 			.get_nexthop = _get_nexthop,
 			.get_interface = _get_interface,
 			.create_address_enumerator = _create_address_enumerator,
+			.create_local_subnet_enumerator = _create_local_subnet_enumerator,
 			.add_ip = _add_ip,
 			.del_ip = _del_ip,
 			.add_route = _add_route,
diff --git a/src/libcharon/kernel/kernel_interface.h b/src/libcharon/kernel/kernel_interface.h
index 225b40932a..dca4babadd 100644
--- a/src/libcharon/kernel/kernel_interface.h
+++ b/src/libcharon/kernel/kernel_interface.h
@@ -315,6 +315,15 @@ struct kernel_interface_t {
 	enumerator_t *(*create_address_enumerator) (kernel_interface_t *this,
 												kernel_address_type_t which);
 
+	/**
+	 * Creates an enumerator over all local subnets.
+	 *
+	 * Local subnets are subnets the host is directly connected to.
+	 *
+	 * @return				enumerator over host_t*, uint8_t
+	 */
+	enumerator_t *(*create_local_subnet_enumerator)(kernel_interface_t *this);
+
 	/**
 	 * Add a virtual IP to an interface.
 	 *
diff --git a/src/libcharon/kernel/kernel_net.h b/src/libcharon/kernel/kernel_net.h
index 1d78d6edd7..a1ced362ce 100644
--- a/src/libcharon/kernel/kernel_net.h
+++ b/src/libcharon/kernel/kernel_net.h
@@ -118,6 +118,15 @@ struct kernel_net_t {
 	enumerator_t *(*create_address_enumerator) (kernel_net_t *this,
 												kernel_address_type_t which);
 
+	/**
+	 * Creates an enumerator over all local subnets.
+	 *
+	 * Local subnets are subnets the host is directly connected to.
+	 *
+	 * @return				enumerator over host_t*, uint8_t
+	 */
+	enumerator_t *(*create_local_subnet_enumerator)(kernel_net_t *this);
+
 	/**
 	 * Add a virtual IP to an interface.
 	 *