From f90bcee0944064fbe99571b772eef4baba32152e Mon Sep 17 00:00:00 2001 From: Neale Ranns Date: Mon, 4 Mar 2019 01:37:43 -0800 Subject: GBP: fix UT after multi-arch change Change-Id: I09c400d71b3c973341fd79fe9b6709592d96822c Signed-off-by: Neale Ranns --- src/plugins/gbp/CMakeLists.txt | 14 +- src/plugins/gbp/gbp_classify.c | 537 +--------------------------- src/plugins/gbp/gbp_classify.h | 53 +++ src/plugins/gbp/gbp_classify_node.c | 542 ++++++++++++++++++++++++++++ src/plugins/gbp/gbp_fwd.c | 34 -- src/plugins/gbp/gbp_learn.c | 686 ++---------------------------------- src/plugins/gbp/gbp_learn.h | 29 ++ src/plugins/gbp/gbp_learn_node.c | 673 +++++++++++++++++++++++++++++++++++ src/plugins/gbp/gbp_policy.c | 363 +------------------ src/plugins/gbp/gbp_policy_node.c | 388 ++++++++++++++++++++ src/plugins/gbp/gbp_sclass.c | 290 +-------------- src/plugins/gbp/gbp_sclass.h | 20 +- src/plugins/gbp/gbp_sclass_node.c | 296 ++++++++++++++++ 13 files changed, 2036 insertions(+), 1889 deletions(-) create mode 100644 src/plugins/gbp/gbp_classify.h create mode 100644 src/plugins/gbp/gbp_classify_node.c create mode 100644 src/plugins/gbp/gbp_learn_node.c create mode 100644 src/plugins/gbp/gbp_policy_node.c create mode 100644 src/plugins/gbp/gbp_sclass_node.c (limited to 'src') diff --git a/src/plugins/gbp/CMakeLists.txt b/src/plugins/gbp/CMakeLists.txt index 140a456bfd0..02c4c17beb2 100644 --- a/src/plugins/gbp/CMakeLists.txt +++ b/src/plugins/gbp/CMakeLists.txt @@ -16,6 +16,7 @@ add_vpp_plugin(gbp gbp_api.c gbp_bridge_domain.c gbp_classify.c + gbp_classify_node.c gbp_contract.c gbp_endpoint.c gbp_endpoint_group.c @@ -25,25 +26,28 @@ add_vpp_plugin(gbp gbp_fwd_node.c gbp_itf.c gbp_learn.c + gbp_learn_node.c gbp_policy.c gbp_policy_dpo.c + gbp_policy_node.c gbp_recirc.c gbp_route_domain.c gbp_scanner.c gbp_sclass.c + gbp_sclass_node.c gbp_subnet.c gbp_vxlan.c gbp_vxlan_node.c MULTIARCH_SOURCES + gbp_classify_node.c + gbp_fwd_dpo.c gbp_fwd_node.c - gbp_policy.c - gbp_learn.c + gbp_learn_node.c gbp_policy_dpo.c - gbp_fwd_dpo.c + gbp_policy_node.c gbp_vxlan_node.c - gbp_sclass.c - gbp_classify.c + gbp_sclass_node.c API_FILES gbp.api diff --git a/src/plugins/gbp/gbp_classify.c b/src/plugins/gbp/gbp_classify.c index 2eaa7bb44b6..5735f359af0 100644 --- a/src/plugins/gbp/gbp_classify.c +++ b/src/plugins/gbp/gbp_classify.c @@ -16,543 +16,10 @@ */ #include -#include -#include -#include -#include -#include +#include #include -#include -#include -#include -typedef enum gbp_src_classify_type_t_ -{ - GBP_SRC_CLASSIFY_NULL, - GBP_SRC_CLASSIFY_PORT, - GBP_SRC_CLASSIFY_LPM, -} gbp_src_classify_type_t; - -#define GBP_SRC_N_CLASSIFY (GBP_SRC_CLASSIFY_LPM + 1) - -/** - * Grouping of global data for the GBP source EPG classification feature - */ -typedef struct gbp_src_classify_main_t_ -{ - /** - * Next nodes for L2 output features - */ - u32 l2_input_feat_next[GBP_SRC_N_CLASSIFY][32]; -} gbp_src_classify_main_t; - -static gbp_src_classify_main_t gbp_src_classify_main; - -/** - * per-packet trace data - */ -typedef struct gbp_classify_trace_t_ -{ - /* per-pkt trace data */ - epg_id_t src_epg; -} gbp_classify_trace_t; - -/* - * determine the SRC EPG form the input port - */ -always_inline uword -gbp_classify_inline (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame, - gbp_src_classify_type_t type, dpo_proto_t dproto) -{ - gbp_src_classify_main_t *gscm = &gbp_src_classify_main; - u32 n_left_from, *from, *to_next; - u32 next_index; - - next_index = 0; - n_left_from = frame->n_vectors; - from = vlib_frame_vector_args (frame); - - while (n_left_from > 0) - { - u32 n_left_to_next; - - vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); - - while (n_left_from > 0 && n_left_to_next > 0) - { - u32 next0, bi0, src_epg, sw_if_index0; - const gbp_endpoint_t *ge0; - vlib_buffer_t *b0; - - bi0 = from[0]; - to_next[0] = bi0; - from += 1; - to_next += 1; - n_left_from -= 1; - n_left_to_next -= 1; - - b0 = vlib_get_buffer (vm, bi0); - - sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX]; - vnet_buffer2 (b0)->gbp.flags = VXLAN_GBP_GPFLAGS_NONE; - - if (GBP_SRC_CLASSIFY_NULL == type) - { - src_epg = EPG_INVALID; - next0 = - vnet_l2_feature_next (b0, gscm->l2_input_feat_next[type], - L2INPUT_FEAT_GBP_NULL_CLASSIFY); - } - else - { - if (DPO_PROTO_ETHERNET == dproto) - { - const ethernet_header_t *h0; - - h0 = vlib_buffer_get_current (b0); - next0 = - vnet_l2_feature_next (b0, gscm->l2_input_feat_next[type], - L2INPUT_FEAT_GBP_SRC_CLASSIFY); - ge0 = gbp_endpoint_find_mac (h0->src_address, - vnet_buffer (b0)->l2.bd_index); - } - else if (DPO_PROTO_IP4 == dproto) - { - const ip4_header_t *h0; - - h0 = vlib_buffer_get_current (b0); - - ge0 = gbp_endpoint_find_ip4 - (&h0->src_address, - fib_table_get_index_for_sw_if_index (FIB_PROTOCOL_IP4, - sw_if_index0)); - - - /* - * Go straight to looukp, do not pass go, do not collect $200 - */ - next0 = 0; - } - else if (DPO_PROTO_IP6 == dproto) - { - const ip6_header_t *h0; - - h0 = vlib_buffer_get_current (b0); - - ge0 = gbp_endpoint_find_ip6 - (&h0->src_address, - fib_table_get_index_for_sw_if_index (FIB_PROTOCOL_IP6, - sw_if_index0)); - - - /* - * Go straight to lookup, do not pass go, do not collect $200 - */ - next0 = 0; - } - else - { - ge0 = NULL; - next0 = 0; - ASSERT (0); - } - - if (PREDICT_TRUE (NULL != ge0)) - src_epg = ge0->ge_fwd.gef_epg_id; - else - src_epg = EPG_INVALID; - } - - vnet_buffer2 (b0)->gbp.src_epg = src_epg; - - if (PREDICT_FALSE ((b0->flags & VLIB_BUFFER_IS_TRACED))) - { - gbp_classify_trace_t *t = - vlib_add_trace (vm, node, b0, sizeof (*t)); - t->src_epg = src_epg; - } - - vlib_validate_buffer_enqueue_x1 (vm, node, next_index, - to_next, n_left_to_next, - bi0, next0); - } - - vlib_put_next_frame (vm, node, next_index, n_left_to_next); - } - - return frame->n_vectors; -} - -VLIB_NODE_FN (gbp_src_classify_node) (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) -{ - return (gbp_classify_inline (vm, node, frame, - GBP_SRC_CLASSIFY_PORT, DPO_PROTO_ETHERNET)); -} - -VLIB_NODE_FN (gbp_null_classify_node) (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) -{ - return (gbp_classify_inline (vm, node, frame, - GBP_SRC_CLASSIFY_NULL, DPO_PROTO_ETHERNET)); -} - -VLIB_NODE_FN (gbp_ip4_src_classify_node) (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) -{ - return (gbp_classify_inline (vm, node, frame, - GBP_SRC_CLASSIFY_PORT, DPO_PROTO_IP4)); -} - -VLIB_NODE_FN (gbp_ip6_src_classify_node) (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) -{ - return (gbp_classify_inline (vm, node, frame, - GBP_SRC_CLASSIFY_PORT, DPO_PROTO_IP6)); -} - - -/* packet trace format function */ -static u8 * -format_gbp_classify_trace (u8 * s, va_list * args) -{ - CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); - CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); - gbp_classify_trace_t *t = va_arg (*args, gbp_classify_trace_t *); - - s = format (s, "src-epg:%d", t->src_epg); - - return s; -} - -/* *INDENT-OFF* */ -VLIB_REGISTER_NODE (gbp_null_classify_node) = { - .name = "gbp-null-classify", - .vector_size = sizeof (u32), - .format_trace = format_gbp_classify_trace, - .type = VLIB_NODE_TYPE_INTERNAL, - - .n_errors = 0, - .n_next_nodes = 0, -}; - -VLIB_REGISTER_NODE (gbp_src_classify_node) = { - .name = "gbp-src-classify", - .vector_size = sizeof (u32), - .format_trace = format_gbp_classify_trace, - .type = VLIB_NODE_TYPE_INTERNAL, - - .n_errors = 0, - .n_next_nodes = 0, -}; - -VLIB_REGISTER_NODE (gbp_ip4_src_classify_node) = { - .name = "ip4-gbp-src-classify", - .vector_size = sizeof (u32), - .format_trace = format_gbp_classify_trace, - .type = VLIB_NODE_TYPE_INTERNAL, - - .n_errors = 0, - .n_next_nodes = 1, - .next_nodes = { - [0] = "ip4-lookup" - }, -}; - -VLIB_REGISTER_NODE (gbp_ip6_src_classify_node) = { - .name = "ip6-gbp-src-classify", - .vector_size = sizeof (u32), - .format_trace = format_gbp_classify_trace, - .type = VLIB_NODE_TYPE_INTERNAL, - - .n_errors = 0, - .n_next_nodes = 1, - .next_nodes = { - [0] = "ip6-lookup" - }, -}; - -VNET_FEATURE_INIT (gbp_ip4_src_classify_feat_node, static) = -{ - .arc_name = "ip4-unicast", - .node_name = "ip4-gbp-src-classify", - .runs_before = VNET_FEATURES ("nat44-out2in"), -}; -VNET_FEATURE_INIT (gbp_ip6_src_classify_feat_node, static) = -{ - .arc_name = "ip6-unicast", - .node_name = "ip6-gbp-src-classify", - .runs_before = VNET_FEATURES ("nat66-out2in"), -}; - -/* *INDENT-ON* */ - -typedef enum gbp_lpm_classify_next_t_ -{ - GPB_LPM_CLASSIFY_DROP, -} gbp_lpm_classify_next_t; - -always_inline dpo_proto_t -ethertype_to_dpo_proto (const ethernet_header_t * eh0) -{ - u16 etype = clib_net_to_host_u16 (eh0->type); - - switch (etype) - { - case ETHERNET_TYPE_IP4: - return (DPO_PROTO_IP4); - case ETHERNET_TYPE_IP6: - return (DPO_PROTO_IP6); - case ETHERNET_TYPE_VLAN: - { - ethernet_vlan_header_t *vh0; - - vh0 = (ethernet_vlan_header_t *) (eh0 + 1); - - switch (clib_net_to_host_u16 (vh0->type)) - { - case ETHERNET_TYPE_IP4: - return (DPO_PROTO_IP4); - case ETHERNET_TYPE_IP6: - return (DPO_PROTO_IP6); - } - } - } - - return (DPO_PROTO_NONE); -} - -/* - * Determine the SRC EPG from a LPM - */ -always_inline uword -gbp_lpm_classify_inline (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame, - dpo_proto_t dproto, u8 is_recirc) -{ - gbp_src_classify_main_t *gscm = &gbp_src_classify_main; - u32 n_left_from, *from, *to_next; - u32 next_index; - - next_index = 0; - n_left_from = frame->n_vectors; - from = vlib_frame_vector_args (frame); - - while (n_left_from > 0) - { - u32 n_left_to_next; - - vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); - - while (n_left_from > 0 && n_left_to_next > 0) - { - u32 bi0, sw_if_index0, fib_index0, lbi0; - gbp_lpm_classify_next_t next0; - const gbp_policy_dpo_t *gpd0; - const gbp_ext_itf_t *gx0; - const gbp_recirc_t *gr0; - const dpo_id_t *dpo0; - load_balance_t *lb0; - ip4_header_t *ip4_0; - ip6_header_t *ip6_0; - vlib_buffer_t *b0; - epg_id_t src_epg0; - - bi0 = from[0]; - to_next[0] = bi0; - from += 1; - to_next += 1; - n_left_from -= 1; - n_left_to_next -= 1; - ip4_0 = NULL; - ip6_0 = NULL; - next0 = GPB_LPM_CLASSIFY_DROP; - - b0 = vlib_get_buffer (vm, bi0); - - sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX]; - vnet_buffer2 (b0)->gbp.flags = VXLAN_GBP_GPFLAGS_NONE; - - if (DPO_PROTO_IP4 == dproto) - ip4_0 = vlib_buffer_get_current (b0); - else if (DPO_PROTO_IP6 == dproto) - ip6_0 = vlib_buffer_get_current (b0); - else if (DPO_PROTO_ETHERNET == dproto) - { - const ethernet_header_t *eh0; - - eh0 = vlib_buffer_get_current (b0); - - dproto = ethertype_to_dpo_proto (eh0); - - switch (dproto) - { - case DPO_PROTO_IP4: - ip4_0 = (vlib_buffer_get_current (b0) + - vnet_buffer (b0)->l2.l2_len); - break; - case DPO_PROTO_IP6: - ip6_0 = (vlib_buffer_get_current (b0) + - vnet_buffer (b0)->l2.l2_len); - break; - default: - /* not IP so no LPM classify possible */ - src_epg0 = EPG_INVALID; - goto trace; - } - } - - if (is_recirc) - { - gr0 = gbp_recirc_get (sw_if_index0); - fib_index0 = gr0->gr_fib_index[dproto]; - - vnet_feature_next (&next0, b0); - } - else - { - gx0 = gbp_ext_itf_get (sw_if_index0); - fib_index0 = gx0->gx_fib_index[dproto]; - - next0 = vnet_l2_feature_next - (b0, gscm->l2_input_feat_next[GBP_SRC_CLASSIFY_LPM], - L2INPUT_FEAT_GBP_LPM_CLASSIFY); - } - - if (DPO_PROTO_IP4 == dproto) - { - lbi0 = ip4_fib_forwarding_lookup (fib_index0, - &ip4_0->src_address); - } - else if (DPO_PROTO_IP6 == dproto) - { - lbi0 = ip6_fib_table_fwding_lookup (&ip6_main, fib_index0, - &ip6_0->src_address); - } - else - { - /* not IP so no LPM classify possible */ - src_epg0 = EPG_INVALID; - goto trace; - } - lb0 = load_balance_get (lbi0); - dpo0 = load_balance_get_bucket_i (lb0, 0); - - if (gbp_policy_dpo_type == dpo0->dpoi_type) - { - gpd0 = gbp_policy_dpo_get (dpo0->dpoi_index); - src_epg0 = gpd0->gpd_epg; - } - else - { - /* could not classify => drop */ - src_epg0 = EPG_INVALID; - next0 = GPB_LPM_CLASSIFY_DROP; - } - - trace: - vnet_buffer2 (b0)->gbp.src_epg = src_epg0; - - if (PREDICT_FALSE ((b0->flags & VLIB_BUFFER_IS_TRACED))) - { - gbp_classify_trace_t *t = - vlib_add_trace (vm, node, b0, sizeof (*t)); - t->src_epg = src_epg0; - } - - vlib_validate_buffer_enqueue_x1 (vm, node, next_index, - to_next, n_left_to_next, - bi0, next0); - } - - vlib_put_next_frame (vm, node, next_index, n_left_to_next); - } - - return frame->n_vectors; -} - -VLIB_NODE_FN (gbp_ip4_lpm_classify_node) (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) -{ - return (gbp_lpm_classify_inline (vm, node, frame, DPO_PROTO_IP4, 1)); -} - -VLIB_NODE_FN (gbp_ip6_lpm_classify_node) (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) -{ - return (gbp_lpm_classify_inline (vm, node, frame, DPO_PROTO_IP6, 1)); -} - -VLIB_NODE_FN (gbp_l2_lpm_classify_node) (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) -{ - return (gbp_lpm_classify_inline (vm, node, frame, DPO_PROTO_ETHERNET, 0)); -} - -/* *INDENT-OFF* */ -VLIB_REGISTER_NODE (gbp_ip4_lpm_classify_node) = { - .name = "ip4-gbp-lpm-classify", - .vector_size = sizeof (u32), - .format_trace = format_gbp_classify_trace, - .type = VLIB_NODE_TYPE_INTERNAL, - - .n_errors = 0, - .n_next_nodes = 1, - .next_nodes = { - [GPB_LPM_CLASSIFY_DROP] = "ip4-drop" - }, -}; - -VLIB_REGISTER_NODE (gbp_ip6_lpm_classify_node) = { - .name = "ip6-gbp-lpm-classify", - .vector_size = sizeof (u32), - .format_trace = format_gbp_classify_trace, - .type = VLIB_NODE_TYPE_INTERNAL, - - .n_errors = 0, - .n_next_nodes = 1, - .next_nodes = { - [GPB_LPM_CLASSIFY_DROP] = "ip6-drop" - }, -}; - -VLIB_REGISTER_NODE (gbp_l2_lpm_classify_node) = { - .name = "l2-gbp-lpm-classify", - .vector_size = sizeof (u32), - .format_trace = format_gbp_classify_trace, - .type = VLIB_NODE_TYPE_INTERNAL, - - .n_errors = 0, - .n_next_nodes = 1, - .next_nodes = { - [GPB_LPM_CLASSIFY_DROP] = "error-drop" - }, -}; - -VNET_FEATURE_INIT (gbp_ip4_lpm_classify_feat_node, static) = -{ - .arc_name = "ip4-unicast", - .node_name = "ip4-gbp-lpm-classify", - .runs_before = VNET_FEATURES ("nat44-out2in"), -}; -VNET_FEATURE_INIT (gbp_ip6_lpm_classify_feat_node, static) = -{ - .arc_name = "ip6-unicast", - .node_name = "ip6-gbp-lpm-classify", - .runs_before = VNET_FEATURES ("nat66-out2in"), -}; - -/* *INDENT-ON* */ +gbp_src_classify_main_t gbp_src_classify_main; static clib_error_t * gbp_src_classify_init (vlib_main_t * vm) diff --git a/src/plugins/gbp/gbp_classify.h b/src/plugins/gbp/gbp_classify.h new file mode 100644 index 00000000000..c0c1fd53dc5 --- /dev/null +++ b/src/plugins/gbp/gbp_classify.h @@ -0,0 +1,53 @@ +/* + * gbp.h : Group Based Policy + * + * Copyright (c) 2018 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef __GBP_CLASSIFY_H__ +#define __GBP_CLASSIFY_H__ + +#include + +typedef enum gbp_src_classify_type_t_ +{ + GBP_SRC_CLASSIFY_NULL, + GBP_SRC_CLASSIFY_PORT, + GBP_SRC_CLASSIFY_LPM, +} gbp_src_classify_type_t; + +#define GBP_SRC_N_CLASSIFY (GBP_SRC_CLASSIFY_LPM + 1) + +/** + * Grouping of global data for the GBP source EPG classification feature + */ +typedef struct gbp_src_classify_main_t_ +{ + /** + * Next nodes for L2 output features + */ + u32 l2_input_feat_next[GBP_SRC_N_CLASSIFY][32]; +} gbp_src_classify_main_t; + +extern gbp_src_classify_main_t gbp_src_classify_main; + +#endif + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/src/plugins/gbp/gbp_classify_node.c b/src/plugins/gbp/gbp_classify_node.c new file mode 100644 index 00000000000..43fea769cce --- /dev/null +++ b/src/plugins/gbp/gbp_classify_node.c @@ -0,0 +1,542 @@ +/* + * gbp.h : Group Based Policy + * + * Copyright (c) 2018 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +/** + * per-packet trace data + */ +typedef struct gbp_classify_trace_t_ +{ + /* per-pkt trace data */ + epg_id_t src_epg; +} gbp_classify_trace_t; + +/* + * determine the SRC EPG form the input port + */ +always_inline uword +gbp_classify_inline (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame, + gbp_src_classify_type_t type, dpo_proto_t dproto) +{ + gbp_src_classify_main_t *gscm = &gbp_src_classify_main; + u32 n_left_from, *from, *to_next; + u32 next_index; + + next_index = 0; + n_left_from = frame->n_vectors; + from = vlib_frame_vector_args (frame); + + while (n_left_from > 0) + { + u32 n_left_to_next; + + vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); + + while (n_left_from > 0 && n_left_to_next > 0) + { + u32 next0, bi0, src_epg, sw_if_index0; + const gbp_endpoint_t *ge0; + vlib_buffer_t *b0; + + bi0 = from[0]; + to_next[0] = bi0; + from += 1; + to_next += 1; + n_left_from -= 1; + n_left_to_next -= 1; + + b0 = vlib_get_buffer (vm, bi0); + + sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX]; + vnet_buffer2 (b0)->gbp.flags = VXLAN_GBP_GPFLAGS_NONE; + + if (GBP_SRC_CLASSIFY_NULL == type) + { + src_epg = EPG_INVALID; + next0 = + vnet_l2_feature_next (b0, gscm->l2_input_feat_next[type], + L2INPUT_FEAT_GBP_NULL_CLASSIFY); + } + else + { + if (DPO_PROTO_ETHERNET == dproto) + { + const ethernet_header_t *h0; + + h0 = vlib_buffer_get_current (b0); + next0 = + vnet_l2_feature_next (b0, gscm->l2_input_feat_next[type], + L2INPUT_FEAT_GBP_SRC_CLASSIFY); + ge0 = gbp_endpoint_find_mac (h0->src_address, + vnet_buffer (b0)->l2.bd_index); + } + else if (DPO_PROTO_IP4 == dproto) + { + const ip4_header_t *h0; + + h0 = vlib_buffer_get_current (b0); + + ge0 = gbp_endpoint_find_ip4 + (&h0->src_address, + fib_table_get_index_for_sw_if_index (FIB_PROTOCOL_IP4, + sw_if_index0)); + + + /* + * Go straight to looukp, do not pass go, do not collect $200 + */ + next0 = 0; + } + else if (DPO_PROTO_IP6 == dproto) + { + const ip6_header_t *h0; + + h0 = vlib_buffer_get_current (b0); + + ge0 = gbp_endpoint_find_ip6 + (&h0->src_address, + fib_table_get_index_for_sw_if_index (FIB_PROTOCOL_IP6, + sw_if_index0)); + + + /* + * Go straight to lookup, do not pass go, do not collect $200 + */ + next0 = 0; + } + else + { + ge0 = NULL; + next0 = 0; + ASSERT (0); + } + + if (PREDICT_TRUE (NULL != ge0)) + src_epg = ge0->ge_fwd.gef_epg_id; + else + src_epg = EPG_INVALID; + } + + vnet_buffer2 (b0)->gbp.src_epg = src_epg; + + if (PREDICT_FALSE ((b0->flags & VLIB_BUFFER_IS_TRACED))) + { + gbp_classify_trace_t *t = + vlib_add_trace (vm, node, b0, sizeof (*t)); + t->src_epg = src_epg; + } + + vlib_validate_buffer_enqueue_x1 (vm, node, next_index, + to_next, n_left_to_next, + bi0, next0); + } + + vlib_put_next_frame (vm, node, next_index, n_left_to_next); + } + + return frame->n_vectors; +} + +VLIB_NODE_FN (gbp_src_classify_node) (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + return (gbp_classify_inline (vm, node, frame, + GBP_SRC_CLASSIFY_PORT, DPO_PROTO_ETHERNET)); +} + +VLIB_NODE_FN (gbp_null_classify_node) (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + return (gbp_classify_inline (vm, node, frame, + GBP_SRC_CLASSIFY_NULL, DPO_PROTO_ETHERNET)); +} + +VLIB_NODE_FN (gbp_ip4_src_classify_node) (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + return (gbp_classify_inline (vm, node, frame, + GBP_SRC_CLASSIFY_PORT, DPO_PROTO_IP4)); +} + +VLIB_NODE_FN (gbp_ip6_src_classify_node) (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + return (gbp_classify_inline (vm, node, frame, + GBP_SRC_CLASSIFY_PORT, DPO_PROTO_IP6)); +} + + +/* packet trace format function */ +static u8 * +format_gbp_classify_trace (u8 * s, va_list * args) +{ + CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); + CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); + gbp_classify_trace_t *t = va_arg (*args, gbp_classify_trace_t *); + + s = format (s, "src-epg:%d", t->src_epg); + + return s; +} + +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (gbp_null_classify_node) = { + .name = "gbp-null-classify", + .vector_size = sizeof (u32), + .format_trace = format_gbp_classify_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + + .n_errors = 0, + .n_next_nodes = 0, +}; + +VLIB_REGISTER_NODE (gbp_src_classify_node) = { + .name = "gbp-src-classify", + .vector_size = sizeof (u32), + .format_trace = format_gbp_classify_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + + .n_errors = 0, + .n_next_nodes = 0, +}; + +VLIB_REGISTER_NODE (gbp_ip4_src_classify_node) = { + .name = "ip4-gbp-src-classify", + .vector_size = sizeof (u32), + .format_trace = format_gbp_classify_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + + .n_errors = 0, + .n_next_nodes = 1, + .next_nodes = { + [0] = "ip4-lookup" + }, +}; + +VLIB_REGISTER_NODE (gbp_ip6_src_classify_node) = { + .name = "ip6-gbp-src-classify", + .vector_size = sizeof (u32), + .format_trace = format_gbp_classify_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + + .n_errors = 0, + .n_next_nodes = 1, + .next_nodes = { + [0] = "ip6-lookup" + }, +}; + +VNET_FEATURE_INIT (gbp_ip4_src_classify_feat_node, static) = +{ + .arc_name = "ip4-unicast", + .node_name = "ip4-gbp-src-classify", + .runs_before = VNET_FEATURES ("nat44-out2in"), +}; +VNET_FEATURE_INIT (gbp_ip6_src_classify_feat_node, static) = +{ + .arc_name = "ip6-unicast", + .node_name = "ip6-gbp-src-classify", + .runs_before = VNET_FEATURES ("nat66-out2in"), +}; + +/* *INDENT-ON* */ + +typedef enum gbp_lpm_classify_next_t_ +{ + GPB_LPM_CLASSIFY_DROP, +} gbp_lpm_classify_next_t; + +always_inline dpo_proto_t +ethertype_to_dpo_proto (const ethernet_header_t * eh0) +{ + u16 etype = clib_net_to_host_u16 (eh0->type); + + switch (etype) + { + case ETHERNET_TYPE_IP4: + return (DPO_PROTO_IP4); + case ETHERNET_TYPE_IP6: + return (DPO_PROTO_IP6); + case ETHERNET_TYPE_VLAN: + { + ethernet_vlan_header_t *vh0; + + vh0 = (ethernet_vlan_header_t *) (eh0 + 1); + + switch (clib_net_to_host_u16 (vh0->type)) + { + case ETHERNET_TYPE_IP4: + return (DPO_PROTO_IP4); + case ETHERNET_TYPE_IP6: + return (DPO_PROTO_IP6); + } + } + } + + return (DPO_PROTO_NONE); +} + +/* + * Determine the SRC EPG from a LPM + */ +always_inline uword +gbp_lpm_classify_inline (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame, + dpo_proto_t dproto, u8 is_recirc) +{ + gbp_src_classify_main_t *gscm = &gbp_src_classify_main; + u32 n_left_from, *from, *to_next; + u32 next_index; + + next_index = 0; + n_left_from = frame->n_vectors; + from = vlib_frame_vector_args (frame); + + while (n_left_from > 0) + { + u32 n_left_to_next; + + vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); + + while (n_left_from > 0 && n_left_to_next > 0) + { + u32 bi0, sw_if_index0, fib_index0, lbi0; + gbp_lpm_classify_next_t next0; + const gbp_policy_dpo_t *gpd0; + const gbp_ext_itf_t *gx0; + const gbp_recirc_t *gr0; + const dpo_id_t *dpo0; + load_balance_t *lb0; + ip4_header_t *ip4_0; + ip6_header_t *ip6_0; + vlib_buffer_t *b0; + epg_id_t src_epg0; + + bi0 = from[0]; + to_next[0] = bi0; + from += 1; + to_next += 1; + n_left_from -= 1; + n_left_to_next -= 1; + ip4_0 = NULL; + ip6_0 = NULL; + next0 = GPB_LPM_CLASSIFY_DROP; + + b0 = vlib_get_buffer (vm, bi0); + + sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX]; + vnet_buffer2 (b0)->gbp.flags = VXLAN_GBP_GPFLAGS_NONE; + + if (DPO_PROTO_IP4 == dproto) + ip4_0 = vlib_buffer_get_current (b0); + else if (DPO_PROTO_IP6 == dproto) + ip6_0 = vlib_buffer_get_current (b0); + else if (DPO_PROTO_ETHERNET == dproto) + { + const ethernet_header_t *eh0; + + eh0 = vlib_buffer_get_current (b0); + + dproto = ethertype_to_dpo_proto (eh0); + + switch (dproto) + { + case DPO_PROTO_IP4: + ip4_0 = (vlib_buffer_get_current (b0) + + vnet_buffer (b0)->l2.l2_len); + break; + case DPO_PROTO_IP6: + ip6_0 = (vlib_buffer_get_current (b0) + + vnet_buffer (b0)->l2.l2_len); + break; + default: + /* not IP so no LPM classify possible */ + src_epg0 = EPG_INVALID; + goto trace; + } + } + + if (is_recirc) + { + gr0 = gbp_recirc_get (sw_if_index0); + fib_index0 = gr0->gr_fib_index[dproto]; + + vnet_feature_next (&next0, b0); + } + else + { + gx0 = gbp_ext_itf_get (sw_if_index0); + fib_index0 = gx0->gx_fib_index[dproto]; + + next0 = vnet_l2_feature_next + (b0, gscm->l2_input_feat_next[GBP_SRC_CLASSIFY_LPM], + L2INPUT_FEAT_GBP_LPM_CLASSIFY); + } + + if (DPO_PROTO_IP4 == dproto) + { + lbi0 = ip4_fib_forwarding_lookup (fib_index0, + &ip4_0->src_address); + } + else if (DPO_PROTO_IP6 == dproto) + { + lbi0 = ip6_fib_table_fwding_lookup (&ip6_main, fib_index0, + &ip6_0->src_address); + } + else + { + /* not IP so no LPM classify possible */ + src_epg0 = EPG_INVALID; + goto trace; + } + lb0 = load_balance_get (lbi0); + dpo0 = load_balance_get_bucket_i (lb0, 0); + + if (gbp_policy_dpo_type == dpo0->dpoi_type) + { + gpd0 = gbp_policy_dpo_get (dpo0->dpoi_index); + src_epg0 = gpd0->gpd_epg; + } + else + { + /* could not classify => drop */ + src_epg0 = EPG_INVALID; + next0 = GPB_LPM_CLASSIFY_DROP; + } + + trace: + vnet_buffer2 (b0)->gbp.src_epg = src_epg0; + + if (PREDICT_FALSE ((b0->flags & VLIB_BUFFER_IS_TRACED))) + { + gbp_classify_trace_t *t = + vlib_add_trace (vm, node, b0, sizeof (*t)); + t->src_epg = src_epg0; + } + + vlib_validate_buffer_enqueue_x1 (vm, node, next_index, + to_next, n_left_to_next, + bi0, next0); + } + + vlib_put_next_frame (vm, node, next_index, n_left_to_next); + } + + return frame->n_vectors; +} + +VLIB_NODE_FN (gbp_ip4_lpm_classify_node) (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + return (gbp_lpm_classify_inline (vm, node, frame, DPO_PROTO_IP4, 1)); +} + +VLIB_NODE_FN (gbp_ip6_lpm_classify_node) (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + return (gbp_lpm_classify_inline (vm, node, frame, DPO_PROTO_IP6, 1)); +} + +VLIB_NODE_FN (gbp_l2_lpm_classify_node) (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + return (gbp_lpm_classify_inline (vm, node, frame, DPO_PROTO_ETHERNET, 0)); +} + +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (gbp_ip4_lpm_classify_node) = { + .name = "ip4-gbp-lpm-classify", + .vector_size = sizeof (u32), + .format_trace = format_gbp_classify_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + + .n_errors = 0, + .n_next_nodes = 1, + .next_nodes = { + [GPB_LPM_CLASSIFY_DROP] = "ip4-drop" + }, +}; + +VLIB_REGISTER_NODE (gbp_ip6_lpm_classify_node) = { + .name = "ip6-gbp-lpm-classify", + .vector_size = sizeof (u32), + .format_trace = format_gbp_classify_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + + .n_errors = 0, + .n_next_nodes = 1, + .next_nodes = { + [GPB_LPM_CLASSIFY_DROP] = "ip6-drop" + }, +}; + +VLIB_REGISTER_NODE (gbp_l2_lpm_classify_node) = { + .name = "l2-gbp-lpm-classify", + .vector_size = sizeof (u32), + .format_trace = format_gbp_classify_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + + .n_errors = 0, + .n_next_nodes = 1, + .next_nodes = { + [GPB_LPM_CLASSIFY_DROP] = "error-drop" + }, +}; + +VNET_FEATURE_INIT (gbp_ip4_lpm_classify_feat_node, static) = +{ + .arc_name = "ip4-unicast", + .node_name = "ip4-gbp-lpm-classify", + .runs_before = VNET_FEATURES ("nat44-out2in"), +}; +VNET_FEATURE_INIT (gbp_ip6_lpm_classify_feat_node, static) = +{ + .arc_name = "ip6-unicast", + .node_name = "ip6-gbp-lpm-classify", + .runs_before = VNET_FEATURES ("nat66-out2in"), +}; + +/* *INDENT-ON* */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/src/plugins/gbp/gbp_fwd.c b/src/plugins/gbp/gbp_fwd.c index 8d98f1cd365..dd393980038 100644 --- a/src/plugins/gbp/gbp_fwd.c +++ b/src/plugins/gbp/gbp_fwd.c @@ -29,40 +29,6 @@ typedef struct gbp_fwd_main_t_ static gbp_fwd_main_t gbp_fwd_main; -gbp_policy_main_t gbp_policy_main; - -void -gbp_learn_enable (u32 sw_if_index, gbb_learn_mode_t mode) -{ - if (GBP_LEARN_MODE_L2 == mode) - { - l2input_intf_bitmap_enable (sw_if_index, L2INPUT_FEAT_GBP_LEARN, 1); - } - else - { - vnet_feature_enable_disable ("ip4-unicast", - "gbp-learn-ip4", sw_if_index, 1, 0, 0); - vnet_feature_enable_disable ("ip6-unicast", - "gbp-learn-ip6", sw_if_index, 1, 0, 0); - } -} - -void -gbp_learn_disable (u32 sw_if_index, gbb_learn_mode_t mode) -{ - if (GBP_LEARN_MODE_L2 == mode) - { - l2input_intf_bitmap_enable (sw_if_index, L2INPUT_FEAT_GBP_LEARN, 0); - } - else - { - vnet_feature_enable_disable ("ip4-unicast", - "gbp-learn-ip4", sw_if_index, 0, 0, 0); - vnet_feature_enable_disable ("ip6-unicast", - "gbp-learn-ip6", sw_if_index, 0, 0, 0); - } -} - static clib_error_t * gbp_fwd_init (vlib_main_t * vm) { diff --git a/src/plugins/gbp/gbp_learn.c b/src/plugins/gbp/gbp_learn.c index 156ea358044..612af981248 100644 --- a/src/plugins/gbp/gbp_learn.c +++ b/src/plugins/gbp/gbp_learn.c @@ -16,683 +16,43 @@ #include #include #include -#include -#include #include -#include -#include -/** - * Grouping of global data for the GBP source EPG classification feature - */ -typedef struct gbp_learn_main_t_ -{ - /** - * Next nodes for L2 output features - */ - u32 gl_l2_input_feat_next[32]; - - /** - * logger - VLIB log class - */ - vlib_log_class_t gl_logger; - - /** - * throttles for the DP leanring - */ - throttle_t gl_l2_throttle; - throttle_t gl_l3_throttle; -} gbp_learn_main_t; - -/** - * The maximum learning rate per-hashed EP - */ -#define GBP_ENDPOINT_HASH_LEARN_RATE (1e-2) - -static gbp_learn_main_t gbp_learn_main; - -#define GBP_LEARN_DBG(...) \ - vlib_log_debug (gbp_learn_main.gl_logger, __VA_ARGS__); - -#define foreach_gbp_learn \ - _(DROP, "drop") - -typedef enum -{ -#define _(sym,str) GBP_LEARN_ERROR_##sym, - foreach_gbp_learn -#undef _ - GBP_LEARN_N_ERROR, -} gbp_learn_error_t; - -static char *gbp_learn_error_strings[] = { -#define _(sym,string) string, - foreach_gbp_learn -#undef _ -}; - -typedef enum -{ -#define _(sym,str) GBP_LEARN_NEXT_##sym, - foreach_gbp_learn -#undef _ - GBP_LEARN_N_NEXT, -} gbp_learn_next_t; - -typedef struct gbp_learn_l2_t_ -{ - ip46_address_t ip; - mac_address_t mac; - u32 sw_if_index; - u32 bd_index; - epg_id_t epg; - ip46_address_t outer_src; - ip46_address_t outer_dst; -} gbp_learn_l2_t; - - -static void -gbp_learn_l2_cp (const gbp_learn_l2_t * gl2) -{ - ip46_address_t *ips = NULL; - - GBP_LEARN_DBG ("L2 EP: %U %U, %d", - format_mac_address_t, &gl2->mac, - format_ip46_address, &gl2->ip, IP46_TYPE_ANY, gl2->epg); - - vec_add1 (ips, gl2->ip); - - ASSERT (!ip46_address_is_zero (&gl2->outer_src)); - ASSERT (!ip46_address_is_zero (&gl2->outer_dst)); - - /* - * flip the source and dst, since that's how it was received, this API - * takes how it's sent - */ - gbp_endpoint_update_and_lock (GBP_ENDPOINT_SRC_DP, - gl2->sw_if_index, ips, - &gl2->mac, INDEX_INVALID, - INDEX_INVALID, gl2->epg, - (GBP_ENDPOINT_FLAG_LEARNT | - GBP_ENDPOINT_FLAG_REMOTE), - &gl2->outer_dst, &gl2->outer_src, NULL); - vec_free (ips); -} - -static void -gbp_learn_l2_ip4_dp (const u8 * mac, const ip4_address_t * ip, - u32 bd_index, u32 sw_if_index, epg_id_t epg, - const ip4_address_t * outer_src, - const ip4_address_t * outer_dst) -{ - gbp_learn_l2_t gl2 = { - .sw_if_index = sw_if_index, - .bd_index = bd_index, - .epg = epg, - .ip.ip4 = *ip, - .outer_src.ip4 = *outer_src, - .outer_dst.ip4 = *outer_dst, - }; - mac_address_from_bytes (&gl2.mac, mac); - - ASSERT (!ip46_address_is_zero (&gl2.outer_src)); - ASSERT (!ip46_address_is_zero (&gl2.outer_dst)); +gbp_learn_main_t gbp_learn_main; - vl_api_rpc_call_main_thread (gbp_learn_l2_cp, (u8 *) & gl2, sizeof (gl2)); -} - -static void -gbp_learn_l2_ip6_dp (const u8 * mac, const ip6_address_t * ip, - u32 bd_index, u32 sw_if_index, epg_id_t epg, - const ip4_address_t * outer_src, - const ip4_address_t * outer_dst) +void +gbp_learn_enable (u32 sw_if_index, gbb_learn_mode_t mode) { - gbp_learn_l2_t gl2 = { - .sw_if_index = sw_if_index, - .bd_index = bd_index, - .epg = epg, - .ip.ip6 = *ip, - .outer_src.ip4 = *outer_src, - .outer_dst.ip4 = *outer_dst, - }; - mac_address_from_bytes (&gl2.mac, mac); - - vl_api_rpc_call_main_thread (gbp_learn_l2_cp, (u8 *) & gl2, sizeof (gl2)); -} - -static void -gbp_learn_l2_dp (const u8 * mac, u32 bd_index, u32 sw_if_index, - epg_id_t epg, - const ip4_address_t * outer_src, - const ip4_address_t * outer_dst) -{ - gbp_learn_l2_t gl2 = { - .sw_if_index = sw_if_index, - .bd_index = bd_index, - .epg = epg, - .outer_src.ip4 = *outer_src, - .outer_dst.ip4 = *outer_dst, - }; - mac_address_from_bytes (&gl2.mac, mac); - - vl_api_rpc_call_main_thread (gbp_learn_l2_cp, (u8 *) & gl2, sizeof (gl2)); -} - -/** - * per-packet trace data - */ -typedef struct gbp_learn_l2_trace_t_ -{ - /* per-pkt trace data */ - mac_address_t mac; - u32 sw_if_index; - u32 new; - u32 throttled; - u32 epg; - u32 d_bit; -} gbp_learn_l2_trace_t; - -always_inline void -gbp_learn_get_outer (const ethernet_header_t * eh0, - ip4_address_t * outer_src, ip4_address_t * outer_dst) -{ - ip4_header_t *ip0; - u8 *buff; - - /* rewind back to the ivxlan header */ - buff = (u8 *) eh0; - buff -= (sizeof (vxlan_gbp_header_t) + - sizeof (udp_header_t) + sizeof (ip4_header_t)); - - ip0 = (ip4_header_t *) buff; - - *outer_src = ip0->src_address; - *outer_dst = ip0->dst_address; -} - -VLIB_NODE_FN (gbp_learn_l2_node) (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) -{ - u32 n_left_from, *from, *to_next, next_index, thread_index, seed; - gbp_learn_main_t *glm; - f64 time_now; - - glm = &gbp_learn_main; - next_index = 0; - n_left_from = frame->n_vectors; - from = vlib_frame_vector_args (frame); - time_now = vlib_time_now (vm); - thread_index = vm->thread_index; - - seed = throttle_seed (&glm->gl_l2_throttle, thread_index, time_now); - - while (n_left_from > 0) + if (GBP_LEARN_MODE_L2 == mode) { - u32 n_left_to_next; - - vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); - - while (n_left_from > 0 && n_left_to_next > 0) - { - ip4_address_t outer_src, outer_dst; - u32 bi0, sw_if_index0, t0, epg0; - const ethernet_header_t *eh0; - gbp_bridge_domain_t *gb0; - gbp_learn_next_t next0; - gbp_endpoint_t *ge0; - vlib_buffer_t *b0; - - next0 = GBP_LEARN_NEXT_DROP; - bi0 = from[0]; - to_next[0] = bi0; - from += 1; - to_next += 1; - n_left_from -= 1; - n_left_to_next -= 1; - - b0 = vlib_get_buffer (vm, bi0); - sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX]; - - eh0 = vlib_buffer_get_current (b0); - epg0 = vnet_buffer2 (b0)->gbp.src_epg; - - next0 = vnet_l2_feature_next (b0, glm->gl_l2_input_feat_next, - L2INPUT_FEAT_GBP_LEARN); - - ge0 = gbp_endpoint_find_mac (eh0->src_address, - vnet_buffer (b0)->l2.bd_index); - gb0 = - gbp_bridge_domain_get_by_bd_index (vnet_buffer (b0)->l2.bd_index); - - if ((vnet_buffer2 (b0)->gbp.flags & VXLAN_GBP_GPFLAGS_D) || - (gb0->gb_flags & GBP_BD_FLAG_DO_NOT_LEARN)) - { - t0 = 1; - goto trace; - } - - /* - * check for new EP or a moved EP - */ - if (NULL == ge0 || ge0->ge_fwd.gef_itf != sw_if_index0) - - { - /* - * use the last 4 bytes of the mac address as the hash for the EP - */ - t0 = throttle_check (&glm->gl_l2_throttle, thread_index, - *((u32 *) (eh0->src_address + 2)), seed); - if (!t0) - { - gbp_learn_get_outer (eh0, &outer_src, &outer_dst); - - switch (clib_net_to_host_u16 (eh0->type)) - { - case ETHERNET_TYPE_IP4: - { - const ip4_header_t *ip0; - - ip0 = (ip4_header_t *) (eh0 + 1); - - gbp_learn_l2_ip4_dp (eh0->src_address, - &ip0->src_address, - vnet_buffer (b0)->l2.bd_index, - sw_if_index0, epg0, - &outer_src, &outer_dst); - - break; - } - case ETHERNET_TYPE_IP6: - { - const ip6_header_t *ip0; - - ip0 = (ip6_header_t *) (eh0 + 1); - - gbp_learn_l2_ip6_dp (eh0->src_address, - &ip0->src_address, - vnet_buffer (b0)->l2.bd_index, - sw_if_index0, epg0, - &outer_src, &outer_dst); - - break; - } - default: - gbp_learn_l2_dp (eh0->src_address, - vnet_buffer (b0)->l2.bd_index, - sw_if_index0, epg0, - &outer_src, &outer_dst); - break; - } - } - } - else - { - /* - * this update could happen simultaneoulsy from multiple workers - * but that's ok we are not interested in being very accurate. - */ - t0 = 0; - ge0->ge_last_time = time_now; - } - trace: - if (PREDICT_FALSE ((b0->flags & VLIB_BUFFER_IS_TRACED))) - { - gbp_learn_l2_trace_t *t = - vlib_add_trace (vm, node, b0, sizeof (*t)); - clib_memcpy_fast (t->mac.bytes, eh0->src_address, 6); - t->new = (NULL == ge0); - t->throttled = t0; - t->sw_if_index = sw_if_index0; - t->epg = epg0; - t->d_bit = ! !(vnet_buffer2 (b0)->gbp.flags & - VXLAN_GBP_GPFLAGS_D); - } - - /* verify speculative enqueue, maybe switch current next frame */ - vlib_validate_buffer_enqueue_x1 (vm, node, next_index, - to_next, n_left_to_next, - bi0, next0); - } - - vlib_put_next_frame (vm, node, next_index, n_left_to_next); + l2input_intf_bitmap_enable (sw_if_index, L2INPUT_FEAT_GBP_LEARN, 1); } - - return frame->n_vectors; -} - -/* packet trace format function */ -static u8 * -format_gbp_learn_l2_trace (u8 * s, va_list * args) -{ - CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); - CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); - gbp_learn_l2_trace_t *t = va_arg (*args, gbp_learn_l2_trace_t *); - - s = format (s, "new:%d throttled:%d d-bit:%d mac:%U itf:%d epg:%d", - t->new, t->throttled, t->d_bit, - format_mac_address_t, &t->mac, t->sw_if_index, t->epg); - - return s; -} - -/* *INDENT-OFF* */ -VLIB_REGISTER_NODE (gbp_learn_l2_node) = { - .name = "gbp-learn-l2", - .vector_size = sizeof (u32), - .format_trace = format_gbp_learn_l2_trace, - .type = VLIB_NODE_TYPE_INTERNAL, - - .n_errors = ARRAY_LEN(gbp_learn_error_strings), - .error_strings = gbp_learn_error_strings, - - .n_next_nodes = GBP_LEARN_N_NEXT, - - .next_nodes = { - [GBP_LEARN_NEXT_DROP] = "error-drop", - }, -}; -/* *INDENT-ON* */ - -typedef struct gbp_learn_l3_t_ -{ - ip46_address_t ip; - u32 fib_index; - u32 sw_if_index; - epg_id_t epg; - ip46_address_t outer_src; - ip46_address_t outer_dst; -} gbp_learn_l3_t; - -static void -gbp_learn_l3_cp (const gbp_learn_l3_t * gl3) -{ - ip46_address_t *ips = NULL; - - GBP_LEARN_DBG ("L3 EP: %U, %d", format_ip46_address, &gl3->ip, - IP46_TYPE_ANY, gl3->epg); - - vec_add1 (ips, gl3->ip); - - gbp_endpoint_update_and_lock (GBP_ENDPOINT_SRC_DP, - gl3->sw_if_index, ips, NULL, - INDEX_INVALID, INDEX_INVALID, gl3->epg, - (GBP_ENDPOINT_FLAG_REMOTE | - GBP_ENDPOINT_FLAG_LEARNT), - &gl3->outer_dst, &gl3->outer_src, NULL); - vec_free (ips); -} - -static void -gbp_learn_ip4_dp (const ip4_address_t * ip, - u32 fib_index, u32 sw_if_index, epg_id_t epg, - const ip4_address_t * outer_src, - const ip4_address_t * outer_dst) -{ - /* *INDENT-OFF* */ - gbp_learn_l3_t gl3 = { - .ip = { - .ip4 = *ip, - }, - .sw_if_index = sw_if_index, - .fib_index = fib_index, - .epg = epg, - .outer_src.ip4 = *outer_src, - .outer_dst.ip4 = *outer_dst, - }; - /* *INDENT-ON* */ - - vl_api_rpc_call_main_thread (gbp_learn_l3_cp, (u8 *) & gl3, sizeof (gl3)); -} - -static void -gbp_learn_ip6_dp (const ip6_address_t * ip, - u32 fib_index, u32 sw_if_index, epg_id_t epg, - const ip4_address_t * outer_src, - const ip4_address_t * outer_dst) -{ - /* *INDENT-OFF* */ - gbp_learn_l3_t gl3 = { - .ip = { - .ip6 = *ip, - }, - .sw_if_index = sw_if_index, - .fib_index = fib_index, - .epg = epg, - .outer_src.ip4 = *outer_src, - .outer_dst.ip4 = *outer_dst, - }; - /* *INDENT-ON* */ - - vl_api_rpc_call_main_thread (gbp_learn_l3_cp, (u8 *) & gl3, sizeof (gl3)); -} - -/** - * per-packet trace data - */ -typedef struct gbp_learn_l3_trace_t_ -{ - /* per-pkt trace data */ - ip46_address_t ip; - u32 sw_if_index; - u32 new; - u32 throttled; - u32 epg; -} gbp_learn_l3_trace_t; - -static uword -gbp_learn_l3 (vlib_main_t * vm, - vlib_node_runtime_t * node, vlib_frame_t * frame, - fib_protocol_t fproto) -{ - u32 n_left_from, *from, *to_next, next_index, thread_index, seed; - gbp_learn_main_t *glm; - f64 time_now; - - glm = &gbp_learn_main; - next_index = 0; - n_left_from = frame->n_vectors; - from = vlib_frame_vector_args (frame); - time_now = vlib_time_now (vm); - thread_index = vm->thread_index; - - seed = throttle_seed (&glm->gl_l3_throttle, thread_index, time_now); - - while (n_left_from > 0) + else { - u32 n_left_to_next; - - vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); - - while (n_left_from > 0 && n_left_to_next > 0) - { - u32 bi0, sw_if_index0, t0, epg0, fib_index0; - CLIB_UNUSED (const ip4_header_t *) ip4_0; - CLIB_UNUSED (const ip6_header_t *) ip6_0; - ip4_address_t outer_src, outer_dst; - ethernet_header_t *eth0; - gbp_learn_next_t next0; - gbp_endpoint_t *ge0; - vlib_buffer_t *b0; - - next0 = GBP_LEARN_NEXT_DROP; - bi0 = from[0]; - to_next[0] = bi0; - from += 1; - to_next += 1; - n_left_from -= 1; - n_left_to_next -= 1; - - b0 = vlib_get_buffer (vm, bi0); - sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX]; - epg0 = vnet_buffer2 (b0)->gbp.src_epg; - ip6_0 = NULL; - ip4_0 = NULL; - - vnet_feature_next (&next0, b0); - - if (vnet_buffer2 (b0)->gbp.flags & VXLAN_GBP_GPFLAGS_D) - { - t0 = 1; - ge0 = NULL; - goto trace; - } - - fib_index0 = fib_table_get_index_for_sw_if_index (fproto, - sw_if_index0); - - if (FIB_PROTOCOL_IP6 == fproto) - { - ip6_0 = vlib_buffer_get_current (b0); - eth0 = (ethernet_header_t *) (((u8 *) ip6_0) - sizeof (*eth0)); - - gbp_learn_get_outer (eth0, &outer_src, &outer_dst); - - ge0 = gbp_endpoint_find_ip6 (&ip6_0->src_address, fib_index0); - - if (NULL == ge0) - { - t0 = throttle_check (&glm->gl_l3_throttle, - thread_index, - ip6_address_hash_to_u32 - (&ip6_0->src_address), seed); - - if (!t0) - { - gbp_learn_ip6_dp (&ip6_0->src_address, - fib_index0, sw_if_index0, epg0, - &outer_src, &outer_dst); - } - } - else - { - /* - * this update could happen simultaneoulsy from multiple - * workers but that's ok we are not interested in being - * very accurate. - */ - t0 = 0; - ge0->ge_last_time = time_now; - } - } - else - { - ip4_0 = vlib_buffer_get_current (b0); - eth0 = (ethernet_header_t *) (((u8 *) ip4_0) - sizeof (*eth0)); - - gbp_learn_get_outer (eth0, &outer_src, &outer_dst); - ge0 = gbp_endpoint_find_ip4 (&ip4_0->src_address, fib_index0); - - if (NULL == ge0) - { - t0 = throttle_check (&glm->gl_l3_throttle, thread_index, - ip4_0->src_address.as_u32, seed); - - if (!t0) - { - gbp_learn_ip4_dp (&ip4_0->src_address, - fib_index0, sw_if_index0, epg0, - &outer_src, &outer_dst); - } - } - else - { - /* - * this update could happen simultaneoulsy from multiple - * workers but that's ok we are not interested in being - * very accurate. - */ - t0 = 0; - ge0->ge_last_time = time_now; - } - } - trace: - if (PREDICT_FALSE ((b0->flags & VLIB_BUFFER_IS_TRACED))) - { - gbp_learn_l3_trace_t *t; - - t = vlib_add_trace (vm, node, b0, sizeof (*t)); - if (FIB_PROTOCOL_IP6 == fproto && ip6_0) - ip46_address_set_ip6 (&t->ip, &ip6_0->src_address); - if (FIB_PROTOCOL_IP4 == fproto && ip4_0) - ip46_address_set_ip4 (&t->ip, &ip4_0->src_address); - t->new = (NULL == ge0); - t->throttled = t0; - t->sw_if_index = sw_if_index0; - t->epg = epg0; - } - - vlib_validate_buffer_enqueue_x1 (vm, node, next_index, - to_next, n_left_to_next, - bi0, next0); - } - - vlib_put_next_frame (vm, node, next_index, n_left_to_next); + vnet_feature_enable_disable ("ip4-unicast", + "gbp-learn-ip4", sw_if_index, 1, 0, 0); + vnet_feature_enable_disable ("ip6-unicast", + "gbp-learn-ip6", sw_if_index, 1, 0, 0); } - - return frame->n_vectors; } -/* packet trace format function */ -static u8 * -format_gbp_learn_l3_trace (u8 * s, va_list * args) +void +gbp_learn_disable (u32 sw_if_index, gbb_learn_mode_t mode) { - CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); - CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); - gbp_learn_l3_trace_t *t = va_arg (*args, gbp_learn_l3_trace_t *); - - s = format (s, "new:%d throttled:%d ip:%U itf:%d epg:%d", - t->new, t->throttled, - format_ip46_address, &t->ip, IP46_TYPE_ANY, t->sw_if_index, - t->epg); - - return s; -} - -VLIB_NODE_FN (gbp_learn_ip4_node) (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) -{ - return (gbp_learn_l3 (vm, node, frame, FIB_PROTOCOL_IP4)); -} - -VLIB_NODE_FN (gbp_learn_ip6_node) (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) -{ - return (gbp_learn_l3 (vm, node, frame, FIB_PROTOCOL_IP6)); + if (GBP_LEARN_MODE_L2 == mode) + { + l2input_intf_bitmap_enable (sw_if_index, L2INPUT_FEAT_GBP_LEARN, 0); + } + else + { + vnet_feature_enable_disable ("ip4-unicast", + "gbp-learn-ip4", sw_if_index, 0, 0, 0); + vnet_feature_enable_disable ("ip6-unicast", + "gbp-learn-ip6", sw_if_index, 0, 0, 0); + } } -/* *INDENT-OFF* */ -VLIB_REGISTER_NODE (gbp_learn_ip4_node) = { - .name = "gbp-learn-ip4", - .vector_size = sizeof (u32), - .format_trace = format_gbp_learn_l3_trace, - .type = VLIB_NODE_TYPE_INTERNAL, -}; - -VNET_FEATURE_INIT (gbp_learn_ip4, static) = -{ - .arc_name = "ip4-unicast", - .node_name = "gbp-learn-ip4", -}; - -VLIB_REGISTER_NODE (gbp_learn_ip6_node) = { - .name = "gbp-learn-ip6", - .vector_size = sizeof (u32), - .format_trace = format_gbp_learn_l3_trace, - .type = VLIB_NODE_TYPE_INTERNAL, -}; - -VNET_FEATURE_INIT (gbp_learn_ip6, static) = -{ - .arc_name = "ip6-unicast", - .node_name = "gbp-learn-ip6", -}; - -/* *INDENT-ON* */ - static clib_error_t * gbp_learn_init (vlib_main_t * vm) { diff --git a/src/plugins/gbp/gbp_learn.h b/src/plugins/gbp/gbp_learn.h index 836daf80886..c40196ef259 100644 --- a/src/plugins/gbp/gbp_learn.h +++ b/src/plugins/gbp/gbp_learn.h @@ -18,12 +18,41 @@ #include +/** + * The maximum learning rate per-hashed EP + */ +#define GBP_ENDPOINT_HASH_LEARN_RATE (1e-2) + typedef enum gbp_learn_mode_t_ { GBP_LEARN_MODE_L2, GBP_LEARN_MODE_L3, } gbb_learn_mode_t; +/** + * Grouping of global data for the GBP source EPG classification feature + */ +typedef struct gbp_learn_main_t_ +{ + /** + * Next nodes for L2 output features + */ + u32 gl_l2_input_feat_next[32]; + + /** + * logger - VLIB log class + */ + vlib_log_class_t gl_logger; + + /** + * throttles for the DP leanring + */ + throttle_t gl_l2_throttle; + throttle_t gl_l3_throttle; +} gbp_learn_main_t; + +extern gbp_learn_main_t gbp_learn_main; + extern void gbp_learn_enable (u32 sw_if_index, gbb_learn_mode_t mode); extern void gbp_learn_disable (u32 sw_if_index, gbb_learn_mode_t mode); diff --git a/src/plugins/gbp/gbp_learn_node.c b/src/plugins/gbp/gbp_learn_node.c new file mode 100644 index 00000000000..d7a70bb1991 --- /dev/null +++ b/src/plugins/gbp/gbp_learn_node.c @@ -0,0 +1,673 @@ +/* + * Copyright (c) 2018 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include +#include +#include +#include + +#include +#include +#include +#include + +#define GBP_LEARN_DBG(...) \ + vlib_log_debug (gbp_learn_main.gl_logger, __VA_ARGS__); + +#define foreach_gbp_learn \ + _(DROP, "drop") + +typedef enum +{ +#define _(sym,str) GBP_LEARN_ERROR_##sym, + foreach_gbp_learn +#undef _ + GBP_LEARN_N_ERROR, +} gbp_learn_error_t; + +static char *gbp_learn_error_strings[] = { +#define _(sym,string) string, + foreach_gbp_learn +#undef _ +}; + +typedef enum +{ +#define _(sym,str) GBP_LEARN_NEXT_##sym, + foreach_gbp_learn +#undef _ + GBP_LEARN_N_NEXT, +} gbp_learn_next_t; + +typedef struct gbp_learn_l2_t_ +{ + ip46_address_t ip; + mac_address_t mac; + u32 sw_if_index; + u32 bd_index; + epg_id_t epg; + ip46_address_t outer_src; + ip46_address_t outer_dst; +} gbp_learn_l2_t; + + +static void +gbp_learn_l2_cp (const gbp_learn_l2_t * gl2) +{ + ip46_address_t *ips = NULL; + + GBP_LEARN_DBG ("L2 EP: %U %U, %d", + format_mac_address_t, &gl2->mac, + format_ip46_address, &gl2->ip, IP46_TYPE_ANY, gl2->epg); + + vec_add1 (ips, gl2->ip); + + ASSERT (!ip46_address_is_zero (&gl2->outer_src)); + ASSERT (!ip46_address_is_zero (&gl2->outer_dst)); + + /* + * flip the source and dst, since that's how it was received, this API + * takes how it's sent + */ + gbp_endpoint_update_and_lock (GBP_ENDPOINT_SRC_DP, + gl2->sw_if_index, ips, + &gl2->mac, INDEX_INVALID, + INDEX_INVALID, gl2->epg, + (GBP_ENDPOINT_FLAG_LEARNT | + GBP_ENDPOINT_FLAG_REMOTE), + &gl2->outer_dst, &gl2->outer_src, NULL); + vec_free (ips); +} + +static void +gbp_learn_l2_ip4_dp (const u8 * mac, const ip4_address_t * ip, + u32 bd_index, u32 sw_if_index, epg_id_t epg, + const ip4_address_t * outer_src, + const ip4_address_t * outer_dst) +{ + gbp_learn_l2_t gl2 = { + .sw_if_index = sw_if_index, + .bd_index = bd_index, + .epg = epg, + .ip.ip4 = *ip, + .outer_src.ip4 = *outer_src, + .outer_dst.ip4 = *outer_dst, + }; + mac_address_from_bytes (&gl2.mac, mac); + + ASSERT (!ip46_address_is_zero (&gl2.outer_src)); + ASSERT (!ip46_address_is_zero (&gl2.outer_dst)); + + vl_api_rpc_call_main_thread (gbp_learn_l2_cp, (u8 *) & gl2, sizeof (gl2)); +} + +static void +gbp_learn_l2_ip6_dp (const u8 * mac, const ip6_address_t * ip, + u32 bd_index, u32 sw_if_index, epg_id_t epg, + const ip4_address_t * outer_src, + const ip4_address_t * outer_dst) +{ + gbp_learn_l2_t gl2 = { + .sw_if_index = sw_if_index, + .bd_index = bd_index, + .epg = epg, + .ip.ip6 = *ip, + .outer_src.ip4 = *outer_src, + .outer_dst.ip4 = *outer_dst, + }; + mac_address_from_bytes (&gl2.mac, mac); + + vl_api_rpc_call_main_thread (gbp_learn_l2_cp, (u8 *) & gl2, sizeof (gl2)); +} + +static void +gbp_learn_l2_dp (const u8 * mac, u32 bd_index, u32 sw_if_index, + epg_id_t epg, + const ip4_address_t * outer_src, + const ip4_address_t * outer_dst) +{ + gbp_learn_l2_t gl2 = { + .sw_if_index = sw_if_index, + .bd_index = bd_index, + .epg = epg, + .outer_src.ip4 = *outer_src, + .outer_dst.ip4 = *outer_dst, + }; + mac_address_from_bytes (&gl2.mac, mac); + + vl_api_rpc_call_main_thread (gbp_learn_l2_cp, (u8 *) & gl2, sizeof (gl2)); +} + +/** + * per-packet trace data + */ +typedef struct gbp_learn_l2_trace_t_ +{ + /* per-pkt trace data */ + mac_address_t mac; + u32 sw_if_index; + u32 new; + u32 throttled; + u32 epg; + u32 d_bit; +} gbp_learn_l2_trace_t; + +always_inline void +gbp_learn_get_outer (const ethernet_header_t * eh0, + ip4_address_t * outer_src, ip4_address_t * outer_dst) +{ + ip4_header_t *ip0; + u8 *buff; + + /* rewind back to the ivxlan header */ + buff = (u8 *) eh0; + buff -= (sizeof (vxlan_gbp_header_t) + + sizeof (udp_header_t) + sizeof (ip4_header_t)); + + ip0 = (ip4_header_t *) buff; + + *outer_src = ip0->src_address; + *outer_dst = ip0->dst_address; +} + +VLIB_NODE_FN (gbp_learn_l2_node) (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + u32 n_left_from, *from, *to_next, next_index, thread_index, seed; + gbp_learn_main_t *glm; + f64 time_now; + + glm = &gbp_learn_main; + next_index = 0; + n_left_from = frame->n_vectors; + from = vlib_frame_vector_args (frame); + time_now = vlib_time_now (vm); + thread_index = vm->thread_index; + + seed = throttle_seed (&glm->gl_l2_throttle, thread_index, time_now); + + while (n_left_from > 0) + { + u32 n_left_to_next; + + vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); + + while (n_left_from > 0 && n_left_to_next > 0) + { + ip4_address_t outer_src, outer_dst; + u32 bi0, sw_if_index0, t0, epg0; + const ethernet_header_t *eh0; + gbp_bridge_domain_t *gb0; + gbp_learn_next_t next0; + gbp_endpoint_t *ge0; + vlib_buffer_t *b0; + + next0 = GBP_LEARN_NEXT_DROP; + bi0 = from[0]; + to_next[0] = bi0; + from += 1; + to_next += 1; + n_left_from -= 1; + n_left_to_next -= 1; + + b0 = vlib_get_buffer (vm, bi0); + sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX]; + + eh0 = vlib_buffer_get_current (b0); + epg0 = vnet_buffer2 (b0)->gbp.src_epg; + + next0 = vnet_l2_feature_next (b0, glm->gl_l2_input_feat_next, + L2INPUT_FEAT_GBP_LEARN); + + ge0 = gbp_endpoint_find_mac (eh0->src_address, + vnet_buffer (b0)->l2.bd_index); + gb0 = + gbp_bridge_domain_get_by_bd_index (vnet_buffer (b0)->l2.bd_index); + + if ((vnet_buffer2 (b0)->gbp.flags & VXLAN_GBP_GPFLAGS_D) || + (gb0->gb_flags & GBP_BD_FLAG_DO_NOT_LEARN)) + { + t0 = 1; + goto trace; + } + + /* + * check for new EP or a moved EP + */ + if (NULL == ge0 || ge0->ge_fwd.gef_itf != sw_if_index0) + + { + /* + * use the last 4 bytes of the mac address as the hash for the EP + */ + t0 = throttle_check (&glm->gl_l2_throttle, thread_index, + *((u32 *) (eh0->src_address + 2)), seed); + if (!t0) + { + gbp_learn_get_outer (eh0, &outer_src, &outer_dst); + + switch (clib_net_to_host_u16 (eh0->type)) + { + case ETHERNET_TYPE_IP4: + { + const ip4_header_t *ip0; + + ip0 = (ip4_header_t *) (eh0 + 1); + + gbp_learn_l2_ip4_dp (eh0->src_address, + &ip0->src_address, + vnet_buffer (b0)->l2.bd_index, + sw_if_index0, epg0, + &outer_src, &outer_dst); + + break; + } + case ETHERNET_TYPE_IP6: + { + const ip6_header_t *ip0; + + ip0 = (ip6_header_t *) (eh0 + 1); + + gbp_learn_l2_ip6_dp (eh0->src_address, + &ip0->src_address, + vnet_buffer (b0)->l2.bd_index, + sw_if_index0, epg0, + &outer_src, &outer_dst); + + break; + } + default: + gbp_learn_l2_dp (eh0->src_address, + vnet_buffer (b0)->l2.bd_index, + sw_if_index0, epg0, + &outer_src, &outer_dst); + break; + } + } + } + else + { + /* + * this update could happen simultaneoulsy from multiple workers + * but that's ok we are not interested in being very accurate. + */ + t0 = 0; + ge0->ge_last_time = time_now; + } + trace: + if (PREDICT_FALSE ((b0->flags & VLIB_BUFFER_IS_TRACED))) + { + gbp_learn_l2_trace_t *t = + vlib_add_trace (vm, node, b0, sizeof (*t)); + clib_memcpy_fast (t->mac.bytes, eh0->src_address, 6); + t->new = (NULL == ge0); + t->throttled = t0; + t->sw_if_index = sw_if_index0; + t->epg = epg0; + t->d_bit = ! !(vnet_buffer2 (b0)->gbp.flags & + VXLAN_GBP_GPFLAGS_D); + } + + /* verify speculative enqueue, maybe switch current next frame */ + vlib_validate_buffer_enqueue_x1 (vm, node, next_index, + to_next, n_left_to_next, + bi0, next0); + } + + vlib_put_next_frame (vm, node, next_index, n_left_to_next); + } + + return frame->n_vectors; +} + +/* packet trace format function */ +static u8 * +format_gbp_learn_l2_trace (u8 * s, va_list * args) +{ + CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); + CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); + gbp_learn_l2_trace_t *t = va_arg (*args, gbp_learn_l2_trace_t *); + + s = format (s, "new:%d throttled:%d d-bit:%d mac:%U itf:%d epg:%d", + t->new, t->throttled, t->d_bit, + format_mac_address_t, &t->mac, t->sw_if_index, t->epg); + + return s; +} + +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (gbp_learn_l2_node) = { + .name = "gbp-learn-l2", + .vector_size = sizeof (u32), + .format_trace = format_gbp_learn_l2_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + + .n_errors = ARRAY_LEN(gbp_learn_error_strings), + .error_strings = gbp_learn_error_strings, + + .n_next_nodes = GBP_LEARN_N_NEXT, + + .next_nodes = { + [GBP_LEARN_NEXT_DROP] = "error-drop", + }, +}; +/* *INDENT-ON* */ + +typedef struct gbp_learn_l3_t_ +{ + ip46_address_t ip; + u32 fib_index; + u32 sw_if_index; + epg_id_t epg; + ip46_address_t outer_src; + ip46_address_t outer_dst; +} gbp_learn_l3_t; + +static void +gbp_learn_l3_cp (const gbp_learn_l3_t * gl3) +{ + ip46_address_t *ips = NULL; + + GBP_LEARN_DBG ("L3 EP: %U, %d", format_ip46_address, &gl3->ip, + IP46_TYPE_ANY, gl3->epg); + + vec_add1 (ips, gl3->ip); + + gbp_endpoint_update_and_lock (GBP_ENDPOINT_SRC_DP, + gl3->sw_if_index, ips, NULL, + INDEX_INVALID, INDEX_INVALID, gl3->epg, + (GBP_ENDPOINT_FLAG_REMOTE | + GBP_ENDPOINT_FLAG_LEARNT), + &gl3->outer_dst, &gl3->outer_src, NULL); + vec_free (ips); +} + +static void +gbp_learn_ip4_dp (const ip4_address_t * ip, + u32 fib_index, u32 sw_if_index, epg_id_t epg, + const ip4_address_t * outer_src, + const ip4_address_t * outer_dst) +{ + /* *INDENT-OFF* */ + gbp_learn_l3_t gl3 = { + .ip = { + .ip4 = *ip, + }, + .sw_if_index = sw_if_index, + .fib_index = fib_index, + .epg = epg, + .outer_src.ip4 = *outer_src, + .outer_dst.ip4 = *outer_dst, + }; + /* *INDENT-ON* */ + + vl_api_rpc_call_main_thread (gbp_learn_l3_cp, (u8 *) & gl3, sizeof (gl3)); +} + +static void +gbp_learn_ip6_dp (const ip6_address_t * ip, + u32 fib_index, u32 sw_if_index, epg_id_t epg, + const ip4_address_t * outer_src, + const ip4_address_t * outer_dst) +{ + /* *INDENT-OFF* */ + gbp_learn_l3_t gl3 = { + .ip = { + .ip6 = *ip, + }, + .sw_if_index = sw_if_index, + .fib_index = fib_index, + .epg = epg, + .outer_src.ip4 = *outer_src, + .outer_dst.ip4 = *outer_dst, + }; + /* *INDENT-ON* */ + + vl_api_rpc_call_main_thread (gbp_learn_l3_cp, (u8 *) & gl3, sizeof (gl3)); +} + +/** + * per-packet trace data + */ +typedef struct gbp_learn_l3_trace_t_ +{ + /* per-pkt trace data */ + ip46_address_t ip; + u32 sw_if_index; + u32 new; + u32 throttled; + u32 epg; +} gbp_learn_l3_trace_t; + +static uword +gbp_learn_l3 (vlib_main_t * vm, + vlib_node_runtime_t * node, vlib_frame_t * frame, + fib_protocol_t fproto) +{ + u32 n_left_from, *from, *to_next, next_index, thread_index, seed; + gbp_learn_main_t *glm; + f64 time_now; + + glm = &gbp_learn_main; + next_index = 0; + n_left_from = frame->n_vectors; + from = vlib_frame_vector_args (frame); + time_now = vlib_time_now (vm); + thread_index = vm->thread_index; + + seed = throttle_seed (&glm->gl_l3_throttle, thread_index, time_now); + + while (n_left_from > 0) + { + u32 n_left_to_next; + + vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); + + while (n_left_from > 0 && n_left_to_next > 0) + { + u32 bi0, sw_if_index0, t0, epg0, fib_index0; + CLIB_UNUSED (const ip4_header_t *) ip4_0; + CLIB_UNUSED (const ip6_header_t *) ip6_0; + ip4_address_t outer_src, outer_dst; + ethernet_header_t *eth0; + gbp_learn_next_t next0; + gbp_endpoint_t *ge0; + vlib_buffer_t *b0; + + next0 = GBP_LEARN_NEXT_DROP; + bi0 = from[0]; + to_next[0] = bi0; + from += 1; + to_next += 1; + n_left_from -= 1; + n_left_to_next -= 1; + + b0 = vlib_get_buffer (vm, bi0); + sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX]; + epg0 = vnet_buffer2 (b0)->gbp.src_epg; + ip6_0 = NULL; + ip4_0 = NULL; + + vnet_feature_next (&next0, b0); + + if (vnet_buffer2 (b0)->gbp.flags & VXLAN_GBP_GPFLAGS_D) + { + t0 = 1; + ge0 = NULL; + goto trace; + } + + fib_index0 = fib_table_get_index_for_sw_if_index (fproto, + sw_if_index0); + + if (FIB_PROTOCOL_IP6 == fproto) + { + ip6_0 = vlib_buffer_get_current (b0); + eth0 = (ethernet_header_t *) (((u8 *) ip6_0) - sizeof (*eth0)); + + gbp_learn_get_outer (eth0, &outer_src, &outer_dst); + + ge0 = gbp_endpoint_find_ip6 (&ip6_0->src_address, fib_index0); + + if (NULL == ge0) + { + t0 = throttle_check (&glm->gl_l3_throttle, + thread_index, + ip6_address_hash_to_u32 + (&ip6_0->src_address), seed); + + if (!t0) + { + gbp_learn_ip6_dp (&ip6_0->src_address, + fib_index0, sw_if_index0, epg0, + &outer_src, &outer_dst); + } + } + else + { + /* + * this update could happen simultaneoulsy from multiple + * workers but that's ok we are not interested in being + * very accurate. + */ + t0 = 0; + ge0->ge_last_time = time_now; + } + } + else + { + ip4_0 = vlib_buffer_get_current (b0); + eth0 = (ethernet_header_t *) (((u8 *) ip4_0) - sizeof (*eth0)); + + gbp_learn_get_outer (eth0, &outer_src, &outer_dst); + ge0 = gbp_endpoint_find_ip4 (&ip4_0->src_address, fib_index0); + + if (NULL == ge0) + { + t0 = throttle_check (&glm->gl_l3_throttle, thread_index, + ip4_0->src_address.as_u32, seed); + + if (!t0) + { + gbp_learn_ip4_dp (&ip4_0->src_address, + fib_index0, sw_if_index0, epg0, + &outer_src, &outer_dst); + } + } + else + { + /* + * this update could happen simultaneoulsy from multiple + * workers but that's ok we are not interested in being + * very accurate. + */ + t0 = 0; + ge0->ge_last_time = time_now; + } + } + trace: + if (PREDICT_FALSE ((b0->flags & VLIB_BUFFER_IS_TRACED))) + { + gbp_learn_l3_trace_t *t; + + t = vlib_add_trace (vm, node, b0, sizeof (*t)); + if (FIB_PROTOCOL_IP6 == fproto && ip6_0) + ip46_address_set_ip6 (&t->ip, &ip6_0->src_address); + if (FIB_PROTOCOL_IP4 == fproto && ip4_0) + ip46_address_set_ip4 (&t->ip, &ip4_0->src_address); + t->new = (NULL == ge0); + t->throttled = t0; + t->sw_if_index = sw_if_index0; + t->epg = epg0; + } + + vlib_validate_buffer_enqueue_x1 (vm, node, next_index, + to_next, n_left_to_next, + bi0, next0); + } + + vlib_put_next_frame (vm, node, next_index, n_left_to_next); + } + + return frame->n_vectors; +} + +/* packet trace format function */ +static u8 * +format_gbp_learn_l3_trace (u8 * s, va_list * args) +{ + CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); + CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); + gbp_learn_l3_trace_t *t = va_arg (*args, gbp_learn_l3_trace_t *); + + s = format (s, "new:%d throttled:%d ip:%U itf:%d epg:%d", + t->new, t->throttled, + format_ip46_address, &t->ip, IP46_TYPE_ANY, t->sw_if_index, + t->epg); + + return s; +} + +VLIB_NODE_FN (gbp_learn_ip4_node) (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + return (gbp_learn_l3 (vm, node, frame, FIB_PROTOCOL_IP4)); +} + +VLIB_NODE_FN (gbp_learn_ip6_node) (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + return (gbp_learn_l3 (vm, node, frame, FIB_PROTOCOL_IP6)); +} + +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (gbp_learn_ip4_node) = { + .name = "gbp-learn-ip4", + .vector_size = sizeof (u32), + .format_trace = format_gbp_learn_l3_trace, + .type = VLIB_NODE_TYPE_INTERNAL, +}; + +VNET_FEATURE_INIT (gbp_learn_ip4, static) = +{ + .arc_name = "ip4-unicast", + .node_name = "gbp-learn-ip4", +}; + +VLIB_REGISTER_NODE (gbp_learn_ip6_node) = { + .name = "gbp-learn-ip6", + .vector_size = sizeof (u32), + .format_trace = format_gbp_learn_l3_trace, + .type = VLIB_NODE_TYPE_INTERNAL, +}; + +VNET_FEATURE_INIT (gbp_learn_ip6, static) = +{ + .arc_name = "ip6-unicast", + .node_name = "gbp-learn-ip6", +}; + +/* *INDENT-ON* */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/src/plugins/gbp/gbp_policy.c b/src/plugins/gbp/gbp_policy.c index 5d5dcd0befc..fbdf3946d1d 100644 --- a/src/plugins/gbp/gbp_policy.c +++ b/src/plugins/gbp/gbp_policy.c @@ -16,368 +16,7 @@ #include #include -#include - -#define foreach_gbp_policy \ - _(DENY, "deny") - -typedef enum -{ -#define _(sym,str) GBP_ERROR_##sym, - foreach_gbp_policy -#undef _ - GBP_POLICY_N_ERROR, -} gbp_policy_error_t; - -static char *gbp_policy_error_strings[] = { -#define _(sym,string) string, - foreach_gbp_policy -#undef _ -}; - -typedef enum -{ -#define _(sym,str) GBP_POLICY_NEXT_##sym, - foreach_gbp_policy -#undef _ - GBP_POLICY_N_NEXT, -} gbp_policy_next_t; - -/** - * per-packet trace data - */ -typedef struct gbp_policy_trace_t_ -{ - /* per-pkt trace data */ - u32 src_epg; - u32 dst_epg; - u32 acl_index; - 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, - vlib_frame_t * frame, u8 is_port_based) -{ - gbp_main_t *gm = &gbp_main; - gbp_policy_main_t *gpm = &gbp_policy_main; - u32 n_left_from, *from, *to_next; - u32 next_index; - - next_index = 0; - n_left_from = frame->n_vectors; - from = vlib_frame_vector_args (frame); - - while (n_left_from > 0) - { - u32 n_left_to_next; - - vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); - - while (n_left_from > 0 && n_left_to_next > 0) - { - 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; - 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; - from += 1; - to_next += 1; - n_left_from -= 1; - 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 - */ - 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_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) - { - if (PREDICT_FALSE (key0.gck_src == key0.gck_dst)) - { - /* - * 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)); - vnet_buffer2 (b0)->gbp.flags |= VXLAN_GBP_GPFLAGS_A; - } - else - { - gci0 = gbp_contract_find (&key0); - - if (INDEX_INVALID != gci0) - { - u32 rule_match_p0, trace_bitmap0; - fa_5tuple_opaque_t pkt_5tuple0; - u32 acl_pos_p0, acl_match_p0; - u8 is_ip60, l2_len0, action0; - const gbp_rule_t *gu; - u16 ether_type0; - 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 = *(u16 *) (h0 + l2_len0 - 2); - - if (!gbp_policy_is_ethertype_allowed (gc0, ether_type0)) - { - /* - * 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: - next0 = 0; - break; - case GBP_RULE_REDIRECT: - next0 = gbp_rule_l2_redirect (gu, b0); - break; - } - } - } - } - } - } - else - { - /* - * 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)); - } - - trace: - if (PREDICT_FALSE ((b0->flags & VLIB_BUFFER_IS_TRACED))) - { - gbp_policy_trace_t *t = - vlib_add_trace (vm, node, b0, sizeof (*t)); - t->src_epg = key0.gck_src; - t->dst_epg = key0.gck_dst; - t->acl_index = (gc0 ? gc0->gc_acl_index : ~0), - t->allowed = (next0 != GBP_POLICY_NEXT_DENY); - } - - /* verify speculative enqueue, maybe switch current next frame */ - vlib_validate_buffer_enqueue_x1 (vm, node, next_index, - to_next, n_left_to_next, - bi0, next0); - } - - vlib_put_next_frame (vm, node, next_index, n_left_to_next); - } - - return frame->n_vectors; -} - -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)); -} - -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)); -} - -/* packet trace format function */ -static u8 * -format_gbp_policy_trace (u8 * s, va_list * args) -{ - CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); - CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); - gbp_policy_trace_t *t = va_arg (*args, gbp_policy_trace_t *); - - s = - 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_port_node) = { - .name = "gbp-policy-port", - .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_REGISTER_NODE (gbp_policy_mac_node) = { - .name = "gbp-policy-mac", - .vector_size = sizeof (u32), - .format_trace = format_gbp_policy_trace, - .type = VLIB_NODE_TYPE_INTERNAL, - .sibling_of = "gbp-policy-port", -}; - -/* *INDENT-ON* */ +gbp_policy_main_t gbp_policy_main; static clib_error_t * gbp_policy_init (vlib_main_t * vm) diff --git a/src/plugins/gbp/gbp_policy_node.c b/src/plugins/gbp/gbp_policy_node.c new file mode 100644 index 00000000000..aaf362d2c9a --- /dev/null +++ b/src/plugins/gbp/gbp_policy_node.c @@ -0,0 +1,388 @@ +/* + * Copyright (c) 2018 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include +#include + +#include + +#define foreach_gbp_policy \ + _(DENY, "deny") + +typedef enum +{ +#define _(sym,str) GBP_ERROR_##sym, + foreach_gbp_policy +#undef _ + GBP_POLICY_N_ERROR, +} gbp_policy_error_t; + +static char *gbp_policy_error_strings[] = { +#define _(sym,string) string, + foreach_gbp_policy +#undef _ +}; + +typedef enum +{ +#define _(sym,str) GBP_POLICY_NEXT_##sym, + foreach_gbp_policy +#undef _ + GBP_POLICY_N_NEXT, +} gbp_policy_next_t; + +/** + * per-packet trace data + */ +typedef struct gbp_policy_trace_t_ +{ + /* per-pkt trace data */ + u32 src_epg; + u32 dst_epg; + u32 acl_index; + 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, + vlib_frame_t * frame, u8 is_port_based) +{ + gbp_main_t *gm = &gbp_main; + gbp_policy_main_t *gpm = &gbp_policy_main; + u32 n_left_from, *from, *to_next; + u32 next_index; + + next_index = 0; + n_left_from = frame->n_vectors; + from = vlib_frame_vector_args (frame); + + while (n_left_from > 0) + { + u32 n_left_to_next; + + vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); + + while (n_left_from > 0 && n_left_to_next > 0) + { + 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; + 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; + from += 1; + to_next += 1; + n_left_from -= 1; + 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 + */ + 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_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) + { + if (PREDICT_FALSE (key0.gck_src == key0.gck_dst)) + { + /* + * 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)); + vnet_buffer2 (b0)->gbp.flags |= VXLAN_GBP_GPFLAGS_A; + } + else + { + gci0 = gbp_contract_find (&key0); + + if (INDEX_INVALID != gci0) + { + u32 rule_match_p0, trace_bitmap0; + fa_5tuple_opaque_t pkt_5tuple0; + u32 acl_pos_p0, acl_match_p0; + u8 is_ip60, l2_len0, action0; + const gbp_rule_t *gu; + u16 ether_type0; + 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 = *(u16 *) (h0 + l2_len0 - 2); + + if (!gbp_policy_is_ethertype_allowed (gc0, ether_type0)) + { + /* + * 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: + next0 = 0; + break; + case GBP_RULE_REDIRECT: + next0 = gbp_rule_l2_redirect (gu, b0); + break; + } + } + } + } + } + } + else + { + /* + * 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)); + } + + trace: + if (PREDICT_FALSE ((b0->flags & VLIB_BUFFER_IS_TRACED))) + { + gbp_policy_trace_t *t = + vlib_add_trace (vm, node, b0, sizeof (*t)); + t->src_epg = key0.gck_src; + t->dst_epg = key0.gck_dst; + t->acl_index = (gc0 ? gc0->gc_acl_index : ~0), + t->allowed = (next0 != GBP_POLICY_NEXT_DENY); + } + + /* verify speculative enqueue, maybe switch current next frame */ + vlib_validate_buffer_enqueue_x1 (vm, node, next_index, + to_next, n_left_to_next, + bi0, next0); + } + + vlib_put_next_frame (vm, node, next_index, n_left_to_next); + } + + return frame->n_vectors; +} + +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)); +} + +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)); +} + +/* packet trace format function */ +static u8 * +format_gbp_policy_trace (u8 * s, va_list * args) +{ + CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); + CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); + gbp_policy_trace_t *t = va_arg (*args, gbp_policy_trace_t *); + + s = + 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_port_node) = { + .name = "gbp-policy-port", + .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_REGISTER_NODE (gbp_policy_mac_node) = { + .name = "gbp-policy-mac", + .vector_size = sizeof (u32), + .format_trace = format_gbp_policy_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + .sibling_of = "gbp-policy-port", +}; + +/* *INDENT-ON* */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/src/plugins/gbp/gbp_sclass.c b/src/plugins/gbp/gbp_sclass.c index 24581e28904..481ee886976 100644 --- a/src/plugins/gbp/gbp_sclass.c +++ b/src/plugins/gbp/gbp_sclass.c @@ -13,296 +13,12 @@ * limitations under the License. */ -#include +#include #include #include -/** - * Grouping of global data for the GBP source EPG classification feature - */ -typedef struct gbp_sclass_main_t_ -{ - /** - * Next nodes for L2 output features - */ - u32 gel_l2_input_feat_next[32]; - u32 gel_l2_output_feat_next[32]; -} gbp_sclass_main_t; - -static gbp_sclass_main_t gbp_sclass_main; - -#define foreach_gbp_sclass \ - _(DROP, "drop") - - -typedef enum -{ -#define _(sym,str) GBP_SCLASS_NEXT_##sym, - foreach_gbp_sclass -#undef _ - GBP_SCLASS_N_NEXT, -} gbp_sclass_next_t; - -typedef struct gbp_sclass_trace_t_ -{ - /* per-pkt trace data */ - u32 epg; - u32 sclass; -} gbp_sclass_trace_t; - -static_always_inline uword -gbp_sclass_inline (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame, int is_id_2_sclass, int is_l2) -{ - u32 n_left_from, *from, *to_next, next_index; - gbp_sclass_main_t *glm; - - glm = &gbp_sclass_main; - next_index = 0; - n_left_from = frame->n_vectors; - from = vlib_frame_vector_args (frame); - - while (n_left_from > 0) - { - u32 n_left_to_next; - - vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); - - while (n_left_from > 0 && n_left_to_next > 0) - { - gbp_sclass_next_t next0; - vlib_buffer_t *b0; - epg_id_t epg0; - u16 sclass0; - u32 bi0; - - next0 = GBP_SCLASS_NEXT_DROP; - bi0 = from[0]; - to_next[0] = bi0; - from += 1; - to_next += 1; - n_left_from -= 1; - n_left_to_next -= 1; - - b0 = vlib_get_buffer (vm, bi0); - - if (is_id_2_sclass) - { - // output direction - convert from the SRC-EPD to the sclass - gbp_endpoint_group_t *gg; +gbp_sclass_main_t gbp_sclass_main; - epg0 = vnet_buffer2 (b0)->gbp.src_epg; - gg = gbp_epg_get (epg0); - - if (NULL != gg) - { - sclass0 = vnet_buffer2 (b0)->gbp.sclass = gg->gg_sclass; - if (is_l2) - next0 = - vnet_l2_feature_next (b0, glm->gel_l2_output_feat_next, - L2OUTPUT_FEAT_GBP_ID_2_SCLASS); - else - vnet_feature_next (&next0, b0); - } - else - sclass0 = 0; - } - else - { - /* input direction - convert from the sclass to the SRC-EGD */ - sclass0 = vnet_buffer2 (b0)->gbp.sclass; - vnet_buffer2 (b0)->gbp.src_epg = - gbp_epg_sclass_2_id (vnet_buffer2 (b0)->gbp.sclass); - epg0 = vnet_buffer2 (b0)->gbp.src_epg; - - if (EPG_INVALID != epg0) - { - if (is_l2) - next0 = - vnet_l2_feature_next (b0, glm->gel_l2_input_feat_next, - L2INPUT_FEAT_GBP_SCLASS_2_ID); - else - vnet_feature_next (&next0, b0); - } - } - - if (PREDICT_FALSE ((b0->flags & VLIB_BUFFER_IS_TRACED))) - { - gbp_sclass_trace_t *t = - vlib_add_trace (vm, node, b0, sizeof (*t)); - t->epg = epg0; - t->sclass = sclass0; - } - - vlib_validate_buffer_enqueue_x1 (vm, node, next_index, - to_next, n_left_to_next, - bi0, next0); - } - - vlib_put_next_frame (vm, node, next_index, n_left_to_next); - } - - return frame->n_vectors; -} - -VLIB_NODE_FN (l2_gbp_id_2_sclass_node) (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) -{ - return (gbp_sclass_inline (vm, node, frame, 1, 1)); -} - -VLIB_NODE_FN (l2_gbp_sclass_2_id_node) (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) -{ - return (gbp_sclass_inline (vm, node, frame, 0, 1)); -} - -VLIB_NODE_FN (ip4_gbp_id_2_sclass_node) (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) -{ - return (gbp_sclass_inline (vm, node, frame, 1, 0)); -} - -VLIB_NODE_FN (ip4_gbp_sclass_2_id_node) (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) -{ - return (gbp_sclass_inline (vm, node, frame, 0, 0)); -} - -VLIB_NODE_FN (ip6_gbp_id_2_sclass_node) (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) -{ - return (gbp_sclass_inline (vm, node, frame, 1, 0)); -} - -VLIB_NODE_FN (ip6_gbp_sclass_2_id_node) (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) -{ - return (gbp_sclass_inline (vm, node, frame, 0, 0)); -} - -/* packet trace format function */ -static u8 * -format_gbp_sclass_trace (u8 * s, va_list * args) -{ - CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); - CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); - gbp_sclass_trace_t *t = va_arg (*args, gbp_sclass_trace_t *); - - s = format (s, "epg:%d sclass:%d", t->epg, t->sclass); - - return s; -} - -/* *INDENT-OFF* */ -VLIB_REGISTER_NODE (l2_gbp_id_2_sclass_node) = { - .name = "l2-gbp-id-2-sclass", - .vector_size = sizeof (u32), - .format_trace = format_gbp_sclass_trace, - .type = VLIB_NODE_TYPE_INTERNAL, - - .n_next_nodes = GBP_SCLASS_N_NEXT, - - .next_nodes = { - [GBP_SCLASS_NEXT_DROP] = "error-drop", - }, -}; -VLIB_REGISTER_NODE (l2_gbp_sclass_2_id_node) = { - .name = "l2-gbp-sclass-2-id", - .vector_size = sizeof (u32), - .format_trace = format_gbp_sclass_trace, - .type = VLIB_NODE_TYPE_INTERNAL, - - .n_next_nodes = GBP_SCLASS_N_NEXT, - - .next_nodes = { - [GBP_SCLASS_NEXT_DROP] = "error-drop", - }, -}; - -VLIB_REGISTER_NODE (ip4_gbp_id_2_sclass_node) = { - .name = "ip4-gbp-id-2-sclass", - .vector_size = sizeof (u32), - .format_trace = format_gbp_sclass_trace, - .type = VLIB_NODE_TYPE_INTERNAL, - - .n_next_nodes = GBP_SCLASS_N_NEXT, - - .next_nodes = { - [GBP_SCLASS_NEXT_DROP] = "error-drop", - }, -}; -VLIB_REGISTER_NODE (ip4_gbp_sclass_2_id_node) = { - .name = "ip4-gbp-sclass-2-id", - .vector_size = sizeof (u32), - .format_trace = format_gbp_sclass_trace, - .type = VLIB_NODE_TYPE_INTERNAL, - - .n_next_nodes = GBP_SCLASS_N_NEXT, - - .next_nodes = { - [GBP_SCLASS_NEXT_DROP] = "error-drop", - }, -}; - -VLIB_REGISTER_NODE (ip6_gbp_id_2_sclass_node) = { - .name = "ip6-gbp-id-2-sclass", - .vector_size = sizeof (u32), - .format_trace = format_gbp_sclass_trace, - .type = VLIB_NODE_TYPE_INTERNAL, - - .n_next_nodes = GBP_SCLASS_N_NEXT, - - .next_nodes = { - [GBP_SCLASS_NEXT_DROP] = "error-drop", - }, -}; -VLIB_REGISTER_NODE (ip6_gbp_sclass_2_id_node) = { - .name = "ip6-gbp-sclass-2-id", - .vector_size = sizeof (u32), - .format_trace = format_gbp_sclass_trace, - .type = VLIB_NODE_TYPE_INTERNAL, - - .n_next_nodes = GBP_SCLASS_N_NEXT, - - .next_nodes = { - [GBP_SCLASS_NEXT_DROP] = "error-drop", - }, -}; - - -VNET_FEATURE_INIT (ip4_gbp_sclass_2_id_feat, static) = -{ - .arc_name = "ip4-unicast", - .node_name = "ip4-gbp-sclass-2-id", - .runs_before = VNET_FEATURES ("gbp-learn-ip4"), -}; -VNET_FEATURE_INIT (ip6_gbp_sclass_2_id_feat, static) = -{ - .arc_name = "ip6-unicast", - .node_name = "ip6-gbp-sclass-2-id", - .runs_before = VNET_FEATURES ("gbp-learn-ip6"), -}; -VNET_FEATURE_INIT (ip4_gbp_id_2_sclass_feat, static) = -{ - .arc_name = "ip4-output", - .node_name = "ip4-gbp-id-2-sclass", -}; -VNET_FEATURE_INIT (ip6_gbp_id_2_sclass_feat, static) = -{ - .arc_name = "ip6-output", - .node_name = "ip6-gbp-id-2-sclass", -}; -/* *INDENT-ON* */ - -#ifndef CLIB_MARCH_VARIANT void gbp_sclass_enable_l2 (u32 sw_if_index) { @@ -342,7 +58,6 @@ gbp_sclass_disable_ip (u32 sw_if_index) vnet_feature_enable_disable ("ip6-output", "ip6-gbp-id-2-sclass", sw_if_index, 0, 0, 0); } -#endif /* CLIB_MARCH_VARIANT */ static clib_error_t * gbp_sclass_init (vlib_main_t * vm) @@ -369,6 +84,7 @@ gbp_sclass_init (vlib_main_t * vm) VLIB_INIT_FUNCTION (gbp_sclass_init); + /* * fd.io coding-style-patch-verification: ON * diff --git a/src/plugins/gbp/gbp_sclass.h b/src/plugins/gbp/gbp_sclass.h index 07c5fffcc96..75e35c36bdf 100644 --- a/src/plugins/gbp/gbp_sclass.h +++ b/src/plugins/gbp/gbp_sclass.h @@ -1,5 +1,5 @@ /* - * Copyright (c) 2019 Cisco and/or its affiliates. + * Copyright (c) 2018 Cisco and/or its affiliates. * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at: @@ -18,10 +18,24 @@ #include -extern void gbp_sclass_enable_ip (u32 sw_if_index); +/** + * Grouping of global data for the GBP source EPG classification feature + */ +typedef struct gbp_sclass_main_t_ +{ + /** + * Next nodes for L2 output features + */ + u32 gel_l2_input_feat_next[32]; + u32 gel_l2_output_feat_next[32]; +} gbp_sclass_main_t; + +extern gbp_sclass_main_t gbp_sclass_main; + extern void gbp_sclass_enable_l2 (u32 sw_if_index); -extern void gbp_sclass_disable_ip (u32 sw_if_index); extern void gbp_sclass_disable_l2 (u32 sw_if_index); +extern void gbp_sclass_enable_ip (u32 sw_if_index); +extern void gbp_sclass_disable_ip (u32 sw_if_index); #endif diff --git a/src/plugins/gbp/gbp_sclass_node.c b/src/plugins/gbp/gbp_sclass_node.c new file mode 100644 index 00000000000..35b23844fd6 --- /dev/null +++ b/src/plugins/gbp/gbp_sclass_node.c @@ -0,0 +1,296 @@ +/* + * Copyright (c) 2018 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include +#include +#include + +#define foreach_gbp_sclass \ + _(DROP, "drop") + +typedef enum +{ +#define _(sym,str) GBP_SCLASS_NEXT_##sym, + foreach_gbp_sclass +#undef _ + GBP_SCLASS_N_NEXT, +} gbp_sclass_next_t; + +typedef struct gbp_sclass_trace_t_ +{ + /* per-pkt trace data */ + u32 epg; + u32 sclass; +} gbp_sclass_trace_t; + +static_always_inline uword +gbp_sclass_inline (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame, int is_id_2_sclass, int is_l2) +{ + u32 n_left_from, *from, *to_next, next_index; + gbp_sclass_main_t *glm; + + glm = &gbp_sclass_main; + next_index = 0; + n_left_from = frame->n_vectors; + from = vlib_frame_vector_args (frame); + + while (n_left_from > 0) + { + u32 n_left_to_next; + + vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); + + while (n_left_from > 0 && n_left_to_next > 0) + { + gbp_sclass_next_t next0; + vlib_buffer_t *b0; + epg_id_t epg0; + u16 sclass0; + u32 bi0; + + next0 = GBP_SCLASS_NEXT_DROP; + bi0 = from[0]; + to_next[0] = bi0; + from += 1; + to_next += 1; + n_left_from -= 1; + n_left_to_next -= 1; + + b0 = vlib_get_buffer (vm, bi0); + + if (is_id_2_sclass) + { + // output direction - convert from the SRC-EPD to the sclass + gbp_endpoint_group_t *gg; + + epg0 = vnet_buffer2 (b0)->gbp.src_epg; + gg = gbp_epg_get (epg0); + + if (NULL != gg) + { + sclass0 = vnet_buffer2 (b0)->gbp.sclass = gg->gg_sclass; + if (is_l2) + next0 = + vnet_l2_feature_next (b0, glm->gel_l2_output_feat_next, + L2OUTPUT_FEAT_GBP_ID_2_SCLASS); + else + vnet_feature_next (&next0, b0); + } + else + sclass0 = 0; + } + else + { + /* input direction - convert from the sclass to the SRC-EGD */ + sclass0 = vnet_buffer2 (b0)->gbp.sclass; + vnet_buffer2 (b0)->gbp.src_epg = + gbp_epg_sclass_2_id (vnet_buffer2 (b0)->gbp.sclass); + epg0 = vnet_buffer2 (b0)->gbp.src_epg; + + if (EPG_INVALID != epg0) + { + if (is_l2) + next0 = + vnet_l2_feature_next (b0, glm->gel_l2_input_feat_next, + L2INPUT_FEAT_GBP_SCLASS_2_ID); + else + vnet_feature_next (&next0, b0); + } + } + + if (PREDICT_FALSE ((b0->flags & VLIB_BUFFER_IS_TRACED))) + { + gbp_sclass_trace_t *t = + vlib_add_trace (vm, node, b0, sizeof (*t)); + t->epg = epg0; + t->sclass = sclass0; + } + + vlib_validate_buffer_enqueue_x1 (vm, node, next_index, + to_next, n_left_to_next, + bi0, next0); + } + + vlib_put_next_frame (vm, node, next_index, n_left_to_next); + } + + return frame->n_vectors; +} + +VLIB_NODE_FN (l2_gbp_id_2_sclass_node) (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + return (gbp_sclass_inline (vm, node, frame, 1, 1)); +} + +VLIB_NODE_FN (l2_gbp_sclass_2_id_node) (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + return (gbp_sclass_inline (vm, node, frame, 0, 1)); +} + +VLIB_NODE_FN (ip4_gbp_id_2_sclass_node) (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + return (gbp_sclass_inline (vm, node, frame, 1, 0)); +} + +VLIB_NODE_FN (ip4_gbp_sclass_2_id_node) (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + return (gbp_sclass_inline (vm, node, frame, 0, 0)); +} + +VLIB_NODE_FN (ip6_gbp_id_2_sclass_node) (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + return (gbp_sclass_inline (vm, node, frame, 1, 0)); +} + +VLIB_NODE_FN (ip6_gbp_sclass_2_id_node) (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * frame) +{ + return (gbp_sclass_inline (vm, node, frame, 0, 0)); +} + +/* packet trace format function */ +static u8 * +format_gbp_sclass_trace (u8 * s, va_list * args) +{ + CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); + CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); + gbp_sclass_trace_t *t = va_arg (*args, gbp_sclass_trace_t *); + + s = format (s, "epg:%d sclass:%d", t->epg, t->sclass); + + return s; +} + +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (l2_gbp_id_2_sclass_node) = { + .name = "l2-gbp-id-2-sclass", + .vector_size = sizeof (u32), + .format_trace = format_gbp_sclass_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + + .n_next_nodes = GBP_SCLASS_N_NEXT, + + .next_nodes = { + [GBP_SCLASS_NEXT_DROP] = "error-drop", + }, +}; +VLIB_REGISTER_NODE (l2_gbp_sclass_2_id_node) = { + .name = "l2-gbp-sclass-2-id", + .vector_size = sizeof (u32), + .format_trace = format_gbp_sclass_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + + .n_next_nodes = GBP_SCLASS_N_NEXT, + + .next_nodes = { + [GBP_SCLASS_NEXT_DROP] = "error-drop", + }, +}; + +VLIB_REGISTER_NODE (ip4_gbp_id_2_sclass_node) = { + .name = "ip4-gbp-id-2-sclass", + .vector_size = sizeof (u32), + .format_trace = format_gbp_sclass_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + + .n_next_nodes = GBP_SCLASS_N_NEXT, + + .next_nodes = { + [GBP_SCLASS_NEXT_DROP] = "error-drop", + }, +}; +VLIB_REGISTER_NODE (ip4_gbp_sclass_2_id_node) = { + .name = "ip4-gbp-sclass-2-id", + .vector_size = sizeof (u32), + .format_trace = format_gbp_sclass_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + + .n_next_nodes = GBP_SCLASS_N_NEXT, + + .next_nodes = { + [GBP_SCLASS_NEXT_DROP] = "error-drop", + }, +}; + +VLIB_REGISTER_NODE (ip6_gbp_id_2_sclass_node) = { + .name = "ip6-gbp-id-2-sclass", + .vector_size = sizeof (u32), + .format_trace = format_gbp_sclass_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + + .n_next_nodes = GBP_SCLASS_N_NEXT, + + .next_nodes = { + [GBP_SCLASS_NEXT_DROP] = "error-drop", + }, +}; +VLIB_REGISTER_NODE (ip6_gbp_sclass_2_id_node) = { + .name = "ip6-gbp-sclass-2-id", + .vector_size = sizeof (u32), + .format_trace = format_gbp_sclass_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + + .n_next_nodes = GBP_SCLASS_N_NEXT, + + .next_nodes = { + [GBP_SCLASS_NEXT_DROP] = "error-drop", + }, +}; + + +VNET_FEATURE_INIT (ip4_gbp_sclass_2_id_feat, static) = +{ + .arc_name = "ip4-unicast", + .node_name = "ip4-gbp-sclass-2-id", + .runs_before = VNET_FEATURES ("gbp-learn-ip4"), +}; +VNET_FEATURE_INIT (ip6_gbp_sclass_2_id_feat, static) = +{ + .arc_name = "ip6-unicast", + .node_name = "ip6-gbp-sclass-2-id", + .runs_before = VNET_FEATURES ("gbp-learn-ip6"), +}; +VNET_FEATURE_INIT (ip4_gbp_id_2_sclass_feat, static) = +{ + .arc_name = "ip4-output", + .node_name = "ip4-gbp-id-2-sclass", +}; +VNET_FEATURE_INIT (ip6_gbp_id_2_sclass_feat, static) = +{ + .arc_name = "ip6-output", + .node_name = "ip6-gbp-id-2-sclass", +}; +/* *INDENT-ON* */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ -- cgit 1.2.3-korg