Implemented IKEv2 initiator features:
- IKE_SA_INIT and IKE_AUTH initial exchanges
- Delete IKA SA
- Rekey and delete Child SA
- Child SAs lifetime policy
To set up one VPP instance as the initiator use the following CLI commands (or API equivalents):
ikev2 profile set <id> responder <interface> <addr>
ikev2 profile set <id> ike-crypto-alg <crypto alg> <key size> ike-integ-alg <integ alg> ike-dh <dh type>
ikev2 profile set <id> esp-crypto-alg <crypto alg> <key size> esp-integ-alg <integ alg> esp-dh <dh type>
ikev2 profile set <id> sa-lifetime <seconds> <jitter> <handover> <max bytes>
and finally
ikev2 initiate sa-init <profile id> to initiate the IKE_SA_INIT exchange
Child SA re-keying process:
1. Child SA expires
2. A new Child SA is created using the Child SA rekey exchange
3. For a set time both SAs are alive
4. After the set time interval expires old SA is deleted
Any additional settings will not be carried over (i.e. settings of the ipsec<x> interface associated with the Child SA)
CLI API additions:
ikev2 profile set <id> responder <interface> <addr>
ikev2 profile set <id> ike-crypto-alg <crypto alg> <key size> ike-integ-alg <integ alg> ike-dh <dh type>
ikev2 profile set <id> esp-crypto-alg <crypto alg> <key size> esp-integ-alg <integ alg> esp-dh <dh type>
ikev2 profile set <id> sa-lifetime <seconds> <jitter> <handover> <max bytes>
ikev2 initiate sa-init <profile id>
ikev2 initiate del-child-sa <child sa ispi>
ikev2 initiate del-sa <sa ispi>
ikev2 initiate rekey-child-sa <profile id> <child sa ispi>
Sample configurations:
Responder:
ikev2 profile add pr1
ikev2 profile set pr1 auth shared-key-mic string Vpp123
ikev2 profile set pr1 id local fqdn vpp.home.responder
ikev2 profile set pr1 id remote fqdn vpp.home.initiator
ikev2 profile set pr1 traffic-selector remote ip-range 192.168.125.0 - 192.168.125.255 port-range 0 - 65535 protocol 0
ikev2 profile set pr1 traffic-selector local ip-range 192.168.124.0 - 192.168.124.255 port-range 0 - 65535 protocol 0
Initiator:
ikev2 profile add pr1
ikev2 profile set pr1 auth shared-key-mic string Vpp123
ikev2 profile set pr1 id local fqdn vpp.home.initiator
ikev2 profile set pr1 id remote fqdn vpp.home.responder
ikev2 profile set pr1 traffic-selector local ip-range 192.168.125.0 - 192.168.125.255 port-range 0 - 65535 protocol 0
ikev2 profile set pr1 traffic-selector remote ip-range 192.168.124.0 - 192.168.124.255 port-range 0 - 65535 protocol 0
ikev2 profile set pr1 responder TenGigabitEthernet3/0/1 192.168.40.20
ikev2 profile set pr1 ike-crypto-alg aes-cbc 192 ike-integ-alg sha1-96 ike-dh modp-2048
ikev2 profile set pr1 esp-crypto-alg aes-cbc 192 esp-integ-alg sha1-96 esp-dh ecp-256
ikev2 profile set pr1 sa-lifetime 3600 10 5 0
Change-Id: I1db9084dc787129ea61298223fb7585a6f7eaf9e
Signed-off-by: Radu Nicolau <radu.nicolau@intel.com>
diff --git a/src/vnet/ipsec/ikev2_payload.c b/src/vnet/ipsec/ikev2_payload.c
index dd14812..3459538 100644
--- a/src/vnet/ipsec/ikev2_payload.c
+++ b/src/vnet/ipsec/ikev2_payload.c
@@ -133,13 +133,28 @@
void
ikev2_payload_add_notify (ikev2_payload_chain_t * c, u16 msg_type, u8 * data)
{
+ ikev2_payload_add_notify_2(c, msg_type, data, 0);
+}
+
+void
+ikev2_payload_add_notify_2 (ikev2_payload_chain_t * c, u16 msg_type,
+ u8 * data, ikev2_notify_t * notify)
+{
ike_notify_payload_header_t *n;
n =
(ike_notify_payload_header_t *) ikev2_payload_add_hdr (c,
- IKEV2_PAYLOAD_NOTIFY,
- sizeof (*n));
+ IKEV2_PAYLOAD_NOTIFY,
+ sizeof (*n));
n->msg_type = clib_host_to_net_u16 (msg_type);
+ if (notify)
+ {
+ n->protocol_id = notify->protocol_id;
+ if (notify->spi)
+ {
+ n->spi_size = 4;
+ }
+ }
ikev2_payload_add_data (c, data);
}