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authorNeale Ranns <nranns@cisco.com>2018-11-07 09:25:54 -0800
committerDamjan Marion <dmarion@me.com>2018-11-15 17:22:55 +0000
commit13a08cc0984496d50722ffb75e2f48c5d84fb9a7 (patch)
treeee1088dbe24d45ee725134ca5589acaf70ffc6d0 /src/plugins/gbp/gbp_policy_dpo.c
parent96e2d4407b1538d8df4e277ba33b85876589e198 (diff)
GBP: redirect contracts
Change-Id: I463b153de93cfec29a9c15e8e84e41f6003d4c5f Signed-off-by: Neale Ranns <nranns@cisco.com>
Diffstat (limited to 'src/plugins/gbp/gbp_policy_dpo.c')
-rw-r--r--src/plugins/gbp/gbp_policy_dpo.c52
1 files changed, 43 insertions, 9 deletions
diff --git a/src/plugins/gbp/gbp_policy_dpo.c b/src/plugins/gbp/gbp_policy_dpo.c
index fd9dbce8bfa..7c53d1bcedb 100644
--- a/src/plugins/gbp/gbp_policy_dpo.c
+++ b/src/plugins/gbp/gbp_policy_dpo.c
@@ -236,6 +236,23 @@ typedef enum
GBP_POLICY_N_NEXT,
} gbp_policy_next_t;
+always_inline u32
+gbp_rule_l3_redirect (const gbp_rule_t * gu, vlib_buffer_t * b0, int is_ip6)
+{
+ gbp_policy_node_t pnode;
+ const dpo_id_t *dpo;
+ dpo_proto_t dproto;
+
+ pnode = (is_ip6 ? GBP_POLICY_NODE_IP6 : GBP_POLICY_NODE_IP4);
+ dproto = (is_ip6 ? DPO_PROTO_IP6 : DPO_PROTO_IP4);
+ dpo = &gu->gu_dpo[pnode][dproto];
+
+ /* The flow hash is still valid as this is a IP packet being switched */
+ vnet_buffer (b0)->ip.adj_index[VLIB_TX] = dpo->dpoi_index;
+
+ return (dpo->dpoi_next_node);
+}
+
always_inline uword
gbp_policy_dpo_inline (vlib_main_t * vm,
vlib_node_runtime_t * node,
@@ -243,6 +260,7 @@ gbp_policy_dpo_inline (vlib_main_t * vm,
{
gbp_main_t *gm = &gbp_main;
u32 n_left_from, next_index, *from, *to_next;
+ gbp_rule_t *gu;
from = vlib_frame_vector_args (from_frame);
n_left_from = from_frame->n_vectors;
@@ -260,10 +278,9 @@ gbp_policy_dpo_inline (vlib_main_t * vm,
const gbp_policy_dpo_t *gpd0;
u32 bi0, next0;
gbp_contract_key_t key0;
- gbp_contract_value_t value0 = {
- .as_u64 = ~0,
- };
+ gbp_contract_t *gc0;
vlib_buffer_t *b0;
+ index_t gci0;
bi0 = from[0];
to_next[0] = bi0;
@@ -275,6 +292,7 @@ gbp_policy_dpo_inline (vlib_main_t * vm,
b0 = vlib_get_buffer (vm, bi0);
+ gc0 = NULL;
gpd0 =
gbp_policy_dpo_get_i (vnet_buffer (b0)->ip.adj_index[VLIB_TX]);
vnet_buffer (b0)->ip.adj_index[VLIB_TX] = gpd0->gpd_dpo.dpoi_index;
@@ -301,9 +319,9 @@ gbp_policy_dpo_inline (vlib_main_t * vm,
}
else
{
- value0.as_u64 = gbp_acl_lookup (&key0);
+ gci0 = gbp_contract_find (&key0);
- if (~0 != value0.gc_lc_index)
+ if (INDEX_INVALID != gci0)
{
fa_5tuple_opaque_t pkt_5tuple0;
u8 action0 = 0;
@@ -312,16 +330,17 @@ gbp_policy_dpo_inline (vlib_main_t * vm,
/*
* tests against the ACL
*/
+ gc0 = gbp_contract_get (gci0);
acl_plugin_fill_5tuple_inline (gm->
acl_plugin.p_acl_main,
- value0.gc_lc_index, b0,
+ gc0->gc_lc_index, b0,
is_ip6,
/* is_input */ 1,
/* is_l2_path */ 0,
&pkt_5tuple0);
acl_plugin_match_5tuple_inline (gm->
acl_plugin.p_acl_main,
- value0.gc_lc_index,
+ gc0->gc_lc_index,
&pkt_5tuple0, is_ip6,
&action0, &acl_pos_p0,
&acl_match_p0,
@@ -330,8 +349,23 @@ gbp_policy_dpo_inline (vlib_main_t * vm,
if (action0 > 0)
{
+
vnet_buffer2 (b0)->gbp.flags |= VXLAN_GBP_GPFLAGS_A;
- next0 = gpd0->gpd_dpo.dpoi_next_node;
+ gu = gbp_rule_get (gc0->gc_rules[rule_match_p0]);
+
+ switch (gu->gu_action)
+ {
+ case GBP_RULE_PERMIT:
+ next0 = gpd0->gpd_dpo.dpoi_next_node;
+ break;
+ case GBP_RULE_DENY:
+ ASSERT (0);
+ next0 = 0;
+ break;
+ case GBP_RULE_REDIRECT:
+ next0 = gbp_rule_l3_redirect (gu, b0, is_ip6);
+ break;
+ }
}
}
}
@@ -352,7 +386,7 @@ gbp_policy_dpo_inline (vlib_main_t * vm,
tr = vlib_add_trace (vm, node, b0, sizeof (*tr));
tr->src_epg = key0.gck_src;
tr->dst_epg = key0.gck_dst;
- tr->acl_index = value0.gc_acl_index;
+ tr->acl_index = (gc0 ? gc0->gc_acl_index : ~0);
tr->a_bit = vnet_buffer2 (b0)->gbp.flags & VXLAN_GBP_GPFLAGS_A;
}