*/
#include <plugins/gbp/gbp.h>
+#include <plugins/gbp/gbp_policy_dpo.h>
#include <vnet/vxlan-gbp/vxlan_gbp_packet.h>
u32 allowed;
} gbp_policy_trace_t;
+always_inline dpo_proto_t
+ethertype_to_dpo_proto (u16 etype)
+{
+ etype = clib_net_to_host_u16 (etype);
+
+ switch (etype)
+ {
+ case ETHERNET_TYPE_IP4:
+ return (DPO_PROTO_IP4);
+ case ETHERNET_TYPE_IP6:
+ return (DPO_PROTO_IP6);
+ }
+
+ return (DPO_PROTO_NONE);
+}
+
+always_inline u32
+gbp_rule_l2_redirect (const gbp_rule_t * gu, vlib_buffer_t * b0)
+{
+ const ethernet_header_t *eth0;
+ const dpo_id_t *dpo;
+ dpo_proto_t dproto;
+
+ eth0 = vlib_buffer_get_current (b0);
+ /* pop the ethernet header to prepare for L3 rewrite */
+ vlib_buffer_advance (b0, vnet_buffer (b0)->l2.l2_len);
+
+ dproto = ethertype_to_dpo_proto (eth0->type);
+ dpo = &gu->gu_dpo[GBP_POLICY_NODE_L2][dproto];
+
+ /* save the LB index for the next node and reset the IP flow hash
+ * so it's recalculated */
+ vnet_buffer (b0)->ip.adj_index[VLIB_TX] = dpo->dpoi_index;
+ vnet_buffer (b0)->ip.flow_hash = 0;
+
+ return (dpo->dpoi_next_node);
+}
+
+always_inline u8
+gbp_policy_is_ethertype_allowed (const gbp_contract_t * gc0, u16 ethertype)
+{
+ u16 *et;
+
+ vec_foreach (et, gc0->gc_allowed_ethertypes)
+ {
+ if (*et == ethertype)
+ return (1);
+ }
+ return (0);
+}
+
static uword
gbp_policy_inline (vlib_main_t * vm,
vlib_node_runtime_t * node,
{
const ethernet_header_t *h0;
const gbp_endpoint_t *ge0;
+ const gbp_contract_t *gc0;
gbp_policy_next_t next0;
gbp_contract_key_t key0;
- gbp_contract_value_t value0 = {
- .as_u64 = ~0,
- };
u32 bi0, sw_if_index0;
vlib_buffer_t *b0;
+ index_t gci0;
+ gc0 = NULL;
next0 = GBP_POLICY_NEXT_DENY;
bi0 = from[0];
to_next[0] = bi0;
vnet_buffer (b0)->l2.bd_index);
if (NULL != ge0)
- key0.gck_dst = ge0->ge_epg_id;
+ key0.gck_dst = ge0->ge_fwd.gef_epg_id;
else
/* If you cannot determine the destination EP then drop */
goto trace;
}
else
{
- value0.as_u64 = gbp_acl_lookup (&key0);
+ gci0 = gbp_contract_find (&key0);
- if (~0 != value0.gc_lc_index)
+ if (INDEX_INVALID != gci0)
{
+ u32 rule_match_p0, trace_bitmap0;
fa_5tuple_opaque_t pkt_5tuple0;
- u8 action0 = 0;
u32 acl_pos_p0, acl_match_p0;
- u32 rule_match_p0, trace_bitmap0;
- u8 *h0, l2_len0;
+ u8 is_ip60, l2_len0, action0;
+ const gbp_rule_t *gu;
u16 ether_type0;
- u8 is_ip60 = 0;
+ const u8 *h0;
+ action0 = 0;
+ gc0 = gbp_contract_get (gci0);
l2_len0 = vnet_buffer (b0)->l2.l2_len;
h0 = vlib_buffer_get_current (b0);
- ether_type0 =
- clib_net_to_host_u16 (*(u16 *) (h0 + l2_len0 - 2));
-
- is_ip60 = (ether_type0 == ETHERNET_TYPE_IP6) ? 1 : 0;
- /*
- * tests against the ACL
- */
- acl_plugin_fill_5tuple_inline (gm->
- acl_plugin.p_acl_main,
- value0.gc_lc_index, b0,
- is_ip60,
- /* is_input */ 0,
- /* is_l2_path */ 1,
- &pkt_5tuple0);
- acl_plugin_match_5tuple_inline (gm->
- acl_plugin.p_acl_main,
- value0.gc_lc_index,
- &pkt_5tuple0, is_ip60,
- &action0, &acl_pos_p0,
- &acl_match_p0,
- &rule_match_p0,
- &trace_bitmap0);
-
- if (action0 > 0)
+ ether_type0 = *(u16 *) (h0 + l2_len0 - 2);
+
+ if (!gbp_policy_is_ethertype_allowed (gc0, ether_type0))
{
- vnet_buffer2 (b0)->gbp.flags |= VXLAN_GBP_GPFLAGS_A;
-
- next0 =
- vnet_l2_feature_next (b0,
- gpm->l2_output_feat_next
- [is_port_based],
- (is_port_based ?
- L2OUTPUT_FEAT_GBP_POLICY_PORT
- :
- L2OUTPUT_FEAT_GBP_POLICY_MAC));
- ;
+ /*
+ * black list model so drop
+ */
+ goto trace;
+ }
+
+ if ((ether_type0 ==
+ clib_net_to_host_u16 (ETHERNET_TYPE_IP6))
+ || (ether_type0 ==
+ clib_net_to_host_u16 (ETHERNET_TYPE_IP4)))
+ {
+ is_ip60 =
+ (ether_type0 ==
+ clib_net_to_host_u16 (ETHERNET_TYPE_IP6)) ? 1 :
+ 0;
+ /*
+ * tests against the ACL
+ */
+ acl_plugin_fill_5tuple_inline (gm->
+ acl_plugin.p_acl_main,
+ gc0->gc_lc_index, b0,
+ is_ip60,
+ /* is_input */ 0,
+ /* is_l2_path */ 1,
+ &pkt_5tuple0);
+ acl_plugin_match_5tuple_inline (gm->
+ acl_plugin.p_acl_main,
+ gc0->gc_lc_index,
+ &pkt_5tuple0,
+ is_ip60, &action0,
+ &acl_pos_p0,
+ &acl_match_p0,
+ &rule_match_p0,
+ &trace_bitmap0);
+
+ if (action0 > 0)
+ {
+ vnet_buffer2 (b0)->gbp.flags |=
+ VXLAN_GBP_GPFLAGS_A;
+ gu =
+ gbp_rule_get (gc0->gc_rules[rule_match_p0]);
+
+ switch (gu->gu_action)
+ {
+ case GBP_RULE_PERMIT:
+ next0 = vnet_l2_feature_next
+ (b0,
+ gpm->l2_output_feat_next
+ [is_port_based],
+ (is_port_based ?
+ L2OUTPUT_FEAT_GBP_POLICY_PORT :
+ L2OUTPUT_FEAT_GBP_POLICY_MAC));
+ break;
+ case GBP_RULE_DENY:
+ ASSERT (0);
+ next0 = 0;
+ break;
+ case GBP_RULE_REDIRECT:
+ next0 = gbp_rule_l2_redirect (gu, b0);
+ break;
+ }
+ }
}
}
}
vlib_add_trace (vm, node, b0, sizeof (*t));
t->src_epg = key0.gck_src;
t->dst_epg = key0.gck_dst;
- t->acl_index = value0.gc_acl_index;
- t->allowed = (next0 != GBP_POLICY_NEXT_DENY);
+ t->acl_index = (gc0 ? gc0->gc_acl_index : ~0),
+ t->allowed = (next0 != GBP_POLICY_NEXT_DENY);
}
/* verify speculative enqueue, maybe switch current next frame */
.vector_size = sizeof (u32),
.format_trace = format_gbp_policy_trace,
.type = VLIB_NODE_TYPE_INTERNAL,
-
- .n_errors = ARRAY_LEN(gbp_policy_error_strings),
- .error_strings = gbp_policy_error_strings,
-
- .n_next_nodes = GBP_POLICY_N_NEXT,
-
- .next_nodes = {
- [GBP_POLICY_NEXT_DENY] = "error-drop",
- },
+ .sibling_of = "gbp-policy-port",
};
VLIB_NODE_FUNCTION_MULTIARCH (gbp_policy_mac_node, gbp_policy_mac);
Code Review / vpp.git / blobdiff