diff options
Diffstat (limited to 'src/plugins/gbp/gbp_policy_node.c')
| -rw-r--r-- | src/plugins/gbp/gbp_policy_node.c | 135 |
1 files changed, 90 insertions, 45 deletions
diff --git a/src/plugins/gbp/gbp_policy_node.c b/src/plugins/gbp/gbp_policy_node.c index 26f7e9b8c59..10f5956033e 100644 --- a/src/plugins/gbp/gbp_policy_node.c +++ b/src/plugins/gbp/gbp_policy_node.c @@ -14,8 +14,10 @@ */ #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> @@ -109,10 +111,34 @@ gbp_policy_is_ethertype_allowed (const gbp_contract_t * gc0, u16 ethertype) 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; @@ -174,12 +200,7 @@ gbp_policy_inline (vlib_main_t * vm, */ 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_u64 = ~0; goto trace; @@ -188,20 +209,40 @@ gbp_policy_inline (vlib_main_t * vm, /* * 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 = SCLASS_INVALID; + + if (GBP_POLICY_LPM == type) { - key0.gck_dst = ge0->ge_fwd.gef_sclass; - key0.gck_scope = - gbp_bridge_domain_get_scope (vnet_buffer (b0)->l2.bd_index); + 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]; goto trace; @@ -215,13 +256,7 @@ gbp_policy_inline (vlib_main_t * vm, /* * 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++; } @@ -230,18 +265,15 @@ gbp_policy_inline (vlib_main_t * vm, /* * sclass or dclass 1 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_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) @@ -321,13 +353,9 @@ gbp_policy_inline (vlib_main_t * vm, 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; @@ -368,12 +396,7 @@ gbp_policy_inline (vlib_main_t * vm, * 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: @@ -413,14 +436,21 @@ VLIB_NODE_FN (gbp_policy_port_node) (vlib_main_t * vm, 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 */ @@ -470,6 +500,21 @@ VLIB_REGISTER_NODE (gbp_policy_mac_node) = { }, }; +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* */ /* |