#include <plugins/gbp/gbp.h>
+#include <vnet/vxlan-gbp/vxlan_gbp_packet.h>
+
/**
* Grouping of global data for the GBP source EPG classification feature
*/
/**
* Next nodes for L2 output features
*/
- u32 l2_output_feat_next[32];
+ u32 l2_output_feat_next[2][32];
} gbp_policy_main_t;
static gbp_policy_main_t gbp_policy_main;
typedef struct gbp_policy_trace_t_
{
/* per-pkt trace data */
- epg_id_t src_epg;
- epg_id_t dst_epg;
+ u32 src_epg;
+ u32 dst_epg;
u32 acl_index;
+ u32 allowed;
} gbp_policy_trace_t;
static uword
-gbp_policy (vlib_main_t * vm,
- vlib_node_runtime_t * node, vlib_frame_t * frame)
+gbp_policy_inline (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame, u8 is_port_based)
{
gbp_main_t *gm = &gbp_main;
gbp_policy_main_t *gpm = &gbp_policy_main;
while (n_left_from > 0 && n_left_to_next > 0)
{
- const gbp_endpoint_t *gep0;
+ const ethernet_header_t *h0;
+ const gbp_endpoint_t *ge0;
gbp_policy_next_t next0;
gbp_contract_key_t key0;
gbp_contract_value_t value0 = {
n_left_to_next -= 1;
b0 = vlib_get_buffer (vm, bi0);
+ h0 = vlib_buffer_get_current (b0);
+ sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_TX];
+ /*
+ * If the A0bit is set then policy has already been applied
+ * and we skip enforcement here.
+ */
+ 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));
+ key0.as_u32 = ~0;
+ goto trace;
+ }
/*
* determine the src and dst EPG
*/
- sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_TX];
- gep0 = gbp_endpoint_get_itf (sw_if_index0);
- key0.gck_dst = gep0->ge_epg_id;
+ 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_epg_id;
+ else
+ /* If you cannot determine the destination EP then drop */
+ goto trace;
+
key0.gck_src = vnet_buffer2 (b0)->gbp.src_epg;
if (EPG_INVALID != key0.gck_src)
/*
* intra-epg allowed
*/
- next0 = vnet_l2_feature_next (b0, gpm->l2_output_feat_next,
- L2OUTPUT_FEAT_GBP_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));
+ vnet_buffer2 (b0)->gbp.flags |= VXLAN_GBP_GPFLAGS_A;
}
else
{
&trace_bitmap0);
if (action0 > 0)
- next0 =
- vnet_l2_feature_next (b0, gpm->l2_output_feat_next,
- L2OUTPUT_FEAT_GBP_POLICY);
+ {
+ 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));
+ ;
+ }
}
}
}
* 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,
- L2OUTPUT_FEAT_GBP_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));
}
+ trace:
if (PREDICT_FALSE ((b0->flags & VLIB_BUFFER_IS_TRACED)))
{
gbp_policy_trace_t *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);
}
/* verify speculative enqueue, maybe switch current next frame */
return frame->n_vectors;
}
+static uword
+gbp_policy_port (vlib_main_t * vm,
+ vlib_node_runtime_t * node, vlib_frame_t * frame)
+{
+ return (gbp_policy_inline (vm, node, frame, 1));
+}
+
+static uword
+gbp_policy_mac (vlib_main_t * vm,
+ vlib_node_runtime_t * node, vlib_frame_t * frame)
+{
+ return (gbp_policy_inline (vm, node, frame, 0));
+}
+
/* packet trace format function */
static u8 *
format_gbp_policy_trace (u8 * s, va_list * args)
gbp_policy_trace_t *t = va_arg (*args, gbp_policy_trace_t *);
s =
- format (s, "src:%d, dst:%d, acl:%d", t->src_epg, t->dst_epg,
- t->acl_index);
+ format (s, "src:%d, dst:%d, acl:%d allowed:%d",
+ t->src_epg, t->dst_epg, t->acl_index, t->allowed);
return s;
}
/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (gbp_policy_node) = {
- .function = gbp_policy,
- .name = "gbp-policy",
+VLIB_REGISTER_NODE (gbp_policy_port_node) = {
+ .function = gbp_policy_port,
+ .name = "gbp-policy-port",
.vector_size = sizeof (u32),
.format_trace = format_gbp_policy_trace,
.type = VLIB_NODE_TYPE_INTERNAL,
},
};
-VLIB_NODE_FUNCTION_MULTIARCH (gbp_policy_node, gbp_policy);
+VLIB_NODE_FUNCTION_MULTIARCH (gbp_policy_port_node, gbp_policy_port);
+
+VLIB_REGISTER_NODE (gbp_policy_mac_node) = {
+ .function = gbp_policy_mac,
+ .name = "gbp-policy-mac",
+ .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",
+ },
+};
+
+VLIB_NODE_FUNCTION_MULTIARCH (gbp_policy_mac_node, gbp_policy_mac);
/* *INDENT-ON* */
/* Initialize the feature next-node indexes */
feat_bitmap_init_next_nodes (vm,
- gbp_policy_node.index,
+ gbp_policy_port_node.index,
+ L2OUTPUT_N_FEAT,
+ l2output_get_feat_names (),
+ gpm->l2_output_feat_next[1]);
+ feat_bitmap_init_next_nodes (vm,
+ gbp_policy_mac_node.index,
L2OUTPUT_N_FEAT,
l2output_get_feat_names (),
- gpm->l2_output_feat_next);
+ gpm->l2_output_feat_next[0]);
return error;
}
Code Review / vpp.git / blobdiff