*/
#include <plugins/gbp/gbp.h>
+#include <plugins/gbp/gbp_classify.h>
#include <plugins/gbp/gbp_policy_dpo.h>
+#include <plugins/gbp/gbp_bridge_domain.h>
+#include <plugins/gbp/gbp_ext_itf.h>
#include <vnet/vxlan-gbp/vxlan_gbp_packet.h>
#include <vnet/vxlan-gbp/vxlan_gbp.h>
typedef struct gbp_policy_trace_t_
{
/* per-pkt trace data */
- u32 sclass;
- u32 dst_epg;
+ gbp_scope_t scope;
+ sclass_t sclass;
+ sclass_t dclass;
u32 acl_index;
u32 allowed;
u32 flags;
return (0);
}
+static_always_inline gbp_policy_next_t
+gbp_policy_l2_feature_next (gbp_policy_main_t * gpm, vlib_buffer_t * b,
+ const gbp_policy_type_t type)
+{
+ u32 feat_bit;
+
+ switch (type)
+ {
+ case GBP_POLICY_PORT:
+ feat_bit = L2OUTPUT_FEAT_GBP_POLICY_PORT;
+ break;
+ case GBP_POLICY_MAC:
+ feat_bit = L2OUTPUT_FEAT_GBP_POLICY_MAC;
+ break;
+ case GBP_POLICY_LPM:
+ feat_bit = L2OUTPUT_FEAT_GBP_POLICY_LPM;
+ break;
+ default:
+ return GBP_POLICY_NEXT_DROP;
+ }
+
+ return vnet_l2_feature_next (b, gpm->l2_output_feat_next[type], feat_bit);
+}
+
static uword
gbp_policy_inline (vlib_main_t * vm,
vlib_node_runtime_t * node,
- vlib_frame_t * frame, u8 is_port_based)
+ vlib_frame_t * frame, const gbp_policy_type_t type)
{
gbp_main_t *gm = &gbp_main;
gbp_policy_main_t *gpm = &gbp_policy_main;
u32 n_left_from, *from, *to_next;
u32 next_index, thread_index;
- u32 n_allow_intra, n_allow_a_bit;
+ u32 n_allow_intra, n_allow_a_bit, n_allow_sclass_1;
next_index = 0;
n_left_from = frame->n_vectors;
from = vlib_frame_vector_args (frame);
thread_index = vm->thread_index;
- n_allow_intra = n_allow_a_bit = 0;
+ n_allow_intra = n_allow_a_bit = n_allow_sclass_1 = 0;
while (n_left_from > 0)
{
h0 = vlib_buffer_get_current (b0);
sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_TX];
+ /* zero out the key to ensure the pad space is clear */
+ key0.as_u64 = 0;
+
/*
* Reflection check; in and out on an ivxlan tunnel
*/
*/
if (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));
+ next0 = gbp_policy_l2_feature_next (gpm, b0, type);
n_allow_a_bit++;
- key0.as_u32 = ~0;
+ key0.as_u64 = ~0;
goto trace;
}
/*
* determine the src and dst EPG
*/
- if (is_port_based)
- ge0 = gbp_endpoint_find_itf (sw_if_index0);
- else
- ge0 = gbp_endpoint_find_mac (h0->dst_address,
- vnet_buffer (b0)->l2.bd_index);
- if (NULL != ge0)
- key0.gck_dst = ge0->ge_fwd.gef_sclass;
+ key0.gck_dst = SCLASS_INVALID;
+
+ if (GBP_POLICY_LPM == type)
+ {
+ const ip4_address_t *ip4 = 0;
+ const ip6_address_t *ip6 = 0;
+ const dpo_proto_t proto =
+ gbp_classify_get_ip_address (h0, &ip4, &ip6,
+ GBP_CLASSIFY_GET_IP_DST);
+ if (PREDICT_TRUE (DPO_PROTO_NONE != proto))
+ {
+ const gbp_ext_itf_t *ext_itf =
+ gbp_ext_itf_get (sw_if_index0);
+ const gbp_policy_dpo_t *gpd =
+ gbp_classify_get_gpd (ip4, ip6,
+ ext_itf->gx_fib_index[proto]);
+ if (gpd)
+ key0.gck_dst = gpd->gpd_sclass;
+ }
+ }
else
+ {
+ if (GBP_POLICY_PORT == type)
+ ge0 = gbp_endpoint_find_itf (sw_if_index0);
+ else
+ ge0 = gbp_endpoint_find_mac (h0->dst_address,
+ vnet_buffer (b0)->l2.bd_index);
+ if (NULL != ge0)
+ key0.gck_dst = ge0->ge_fwd.gef_sclass;
+ }
+
+ if (SCLASS_INVALID == key0.gck_dst)
{
/* If you cannot determine the destination EP then drop */
b0->error = node->errors[GBP_POLICY_ERROR_DROP_NO_DCLASS];
/*
* intra-epg allowed
*/
- 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));
+ next0 = gbp_policy_l2_feature_next (gpm, b0, type);
vnet_buffer2 (b0)->gbp.flags |= VXLAN_GBP_GPFLAGS_A;
n_allow_intra++;
}
+ else if (PREDICT_FALSE (key0.gck_src == 1 || key0.gck_dst == 1))
+ {
+ /*
+ * sclass or dclass 1 allowed
+ */
+ next0 = gbp_policy_l2_feature_next (gpm, b0, type);
+ vnet_buffer2 (b0)->gbp.flags |= VXLAN_GBP_GPFLAGS_A;
+ n_allow_sclass_1++;
+ }
else
{
+ key0.gck_scope =
+ gbp_bridge_domain_get_scope (vnet_buffer (b0)->
+ l2.bd_index);
gci0 = gbp_contract_find (&key0);
if (INDEX_INVALID != gci0)
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));
+ next0 =
+ gbp_policy_l2_feature_next (gpm, b0,
+ type);
break;
case GBP_RULE_DENY:
next0 = GBP_POLICY_NEXT_DROP;
* the src EPG is not set when the packet arrives on an EPG
* uplink interface and we do not need to apply policy
*/
- 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));
+ next0 = gbp_policy_l2_feature_next (gpm, b0, type);
}
trace:
gbp_policy_trace_t *t =
vlib_add_trace (vm, node, b0, sizeof (*t));
t->sclass = key0.gck_src;
- t->dst_epg = key0.gck_dst;
+ t->dclass = key0.gck_dst;
+ t->scope = key0.gck_scope;
t->acl_index = (gc0 ? gc0->gc_acl_index : ~0);
t->allowed = (next0 != GBP_POLICY_NEXT_DROP);
t->flags = vnet_buffer2 (b0)->gbp.flags;
GBP_POLICY_ERROR_ALLOW_INTRA, n_allow_intra);
vlib_node_increment_counter (vm, node->node_index,
GBP_POLICY_ERROR_ALLOW_A_BIT, n_allow_a_bit);
+ vlib_node_increment_counter (vm, node->node_index,
+ GBP_POLICY_ERROR_ALLOW_SCLASS_1,
+ n_allow_sclass_1);
return frame->n_vectors;
}
vlib_node_runtime_t * node,
vlib_frame_t * frame)
{
- return (gbp_policy_inline (vm, node, frame, 1));
+ return (gbp_policy_inline (vm, node, frame, GBP_POLICY_PORT));
}
VLIB_NODE_FN (gbp_policy_mac_node) (vlib_main_t * vm,
vlib_node_runtime_t * node,
vlib_frame_t * frame)
{
- return (gbp_policy_inline (vm, node, frame, 0));
+ return (gbp_policy_inline (vm, node, frame, GBP_POLICY_MAC));
+}
+
+VLIB_NODE_FN (gbp_policy_lpm_node) (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
+{
+ return (gbp_policy_inline (vm, node, frame, GBP_POLICY_LPM));
}
/* packet trace format function */
gbp_policy_trace_t *t = va_arg (*args, gbp_policy_trace_t *);
s =
- format (s, "sclass:%d, dst:%d, acl:%d allowed:%d flags:%U",
- t->sclass, t->dst_epg, t->acl_index, t->allowed,
+ format (s, "scope:%d sclass:%d, dclass:%d, acl:%d allowed:%d flags:%U",
+ t->scope, t->sclass, t->dclass, t->acl_index, t->allowed,
format_vxlan_gbp_header_gpflags, t->flags);
return s;
},
};
+VLIB_REGISTER_NODE (gbp_policy_lpm_node) = {
+ .name = "gbp-policy-lpm",
+ .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_DROP] = "error-drop",
+ },
+};
+
/* *INDENT-ON* */
/*
Code Review / vpp.git / blobdiff