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authorGabriel Ganne <gabriel.ganne@enea.com>2017-10-02 11:41:24 +0200
committerDamjan Marion <dmarion.lists@gmail.com>2017-11-10 20:25:10 +0000
commit8527f12b525181b47cc7c0c9e943a743b1a3b19e (patch)
treea4a407a2d1b25fc42f80ff06b952271a72f60025 /src/vnet/classify
parentf616d10d04d5c444e20e617841a54cfb2c58d07d (diff)
add classify session action set-sr-policy-index
This allows to use the classifier to steer source routing packets instead of using the "sr steer" command. This way we can steer on anything instead of only the dst ip address. test: * add add_node_next function to the VppPapiProvider class. * add simple test scenario using the classifier to steer packets with dest ip addr == a7::/8 to the source routing insert node. * use new interface indexes (3,4) instead of (0,1) to prevent a cleanup conflict with the other tests which attach a specific fib to the interface. The test creates interfaces sepsrated from the other tests to prevent a conflict in the cleaning of the ip6 fib index 1 which causes vpp not to be able to find a default route on this table. Change-Id: Ibacb30fab3ce53f0dfe848ca6a8cdf0d111d8336 Signed-off-by: Gabriel Ganne <gabriel.ganne@enea.com>
Diffstat (limited to 'src/vnet/classify')
-rw-r--r--src/vnet/classify/classify.api5
-rw-r--r--src/vnet/classify/vnet_classify.c10
-rw-r--r--src/vnet/classify/vnet_classify.h1
3 files changed, 15 insertions, 1 deletions
diff --git a/src/vnet/classify/classify.api b/src/vnet/classify/classify.api
index de9de773858..9d666ee35a5 100644
--- a/src/vnet/classify/classify.api
+++ b/src/vnet/classify/classify.api
@@ -90,8 +90,13 @@ define classify_add_del_table_reply
2: Classified IP packets will be looked up from the
specified ipv6 fib table (configured by metadata as VRF id).
Only valid for L3 input ACL node
+ 3: Classified packet will be steered to source routig policy
+ of given index (in metadata).
+ This is only valid for IPv6 packets redirected to a source
+ routing node.
@param metadata - valid only if action != 0
VRF id if action is 1 or 2.
+ sr policy index if action is 3.
@param match[] - for add, match value for session, required
*/
autoreply define classify_add_del_session
diff --git a/src/vnet/classify/vnet_classify.c b/src/vnet/classify/vnet_classify.c
index f2fe23b3231..d634550bafd 100644
--- a/src/vnet/classify/vnet_classify.c
+++ b/src/vnet/classify/vnet_classify.c
@@ -373,6 +373,8 @@ vnet_classify_entry_claim_resource (vnet_classify_entry_t *e)
case CLASSIFY_ACTION_SET_IP6_FIB_INDEX:
fib_table_lock (e->metadata, FIB_PROTOCOL_IP6, FIB_SOURCE_CLASSIFY);
break;
+ case CLASSIFY_ACTION_SET_SR_POLICY_INDEX:
+ break;
}
}
@@ -387,6 +389,8 @@ vnet_classify_entry_release_resource (vnet_classify_entry_t *e)
case CLASSIFY_ACTION_SET_IP6_FIB_INDEX:
fib_table_unlock (e->metadata, FIB_PROTOCOL_IP6, FIB_SOURCE_CLASSIFY);
break;
+ case CLASSIFY_ACTION_SET_SR_POLICY_INDEX:
+ break;
}
}
@@ -2104,6 +2108,8 @@ int vnet_classify_add_del_session (vnet_classify_main_t * cm,
e->metadata = fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP6,
metadata,
FIB_SOURCE_CLASSIFY);
+ else if (e->action == CLASSIFY_ACTION_SET_SR_POLICY_INDEX)
+ e->metadata = metadata;
else
e->metadata = 0;
@@ -2172,6 +2178,8 @@ classify_session_command_fn (vlib_main_t * vm,
action = 1;
else if (unformat (input, "action set-ip6-fib-id %d", &metadata))
action = 2;
+ else if (unformat (input, "action set-sr-policy-index %d", &metadata))
+ action = 3;
else
{
/* Try registered opaque-index unformat fns */
@@ -2217,7 +2225,7 @@ VLIB_CLI_COMMAND (classify_session_command, static) = {
"classify session [hit-next|l2-hit-next|"
"acl-hit-next <next_index>|policer-hit-next <policer_name>]"
"\n table-index <nn> match [hex] [l2] [l3 ip4] [opaque-index <index>]"
- "\n [action set-ip4-fib-id <n>] [action set-ip6-fib-id <n>] [del]",
+ "\n [action set-ip4-fib-id|set-ip6-fib-id|set-sr-policy-index <n>] [del]",
.function = classify_session_command_fn,
};
diff --git a/src/vnet/classify/vnet_classify.h b/src/vnet/classify/vnet_classify.h
index 1eb5b14d024..c4a5a61364c 100644
--- a/src/vnet/classify/vnet_classify.h
+++ b/src/vnet/classify/vnet_classify.h
@@ -66,6 +66,7 @@ typedef enum vnet_classify_action_t_
{
CLASSIFY_ACTION_SET_IP4_FIB_INDEX = 1,
CLASSIFY_ACTION_SET_IP6_FIB_INDEX = 2,
+ CLASSIFY_ACTION_SET_SR_POLICY_INDEX = 3,
} __attribute__ ((packed)) vnet_classify_action_t;
struct _vnet_classify_main;