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Diffstat (limited to 'vnet/vnet/nsh-vxlan-gpe/decap.c')
-rw-r--r--vnet/vnet/nsh-vxlan-gpe/decap.c537
1 files changed, 0 insertions, 537 deletions
diff --git a/vnet/vnet/nsh-vxlan-gpe/decap.c b/vnet/vnet/nsh-vxlan-gpe/decap.c
deleted file mode 100644
index 76003e6003f..00000000000
--- a/vnet/vnet/nsh-vxlan-gpe/decap.c
+++ /dev/null
@@ -1,537 +0,0 @@
-/*
- * nsh.c: nsh packet processing
- *
- * Copyright (c) 2013 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 <vlib/vlib.h>
-#include <vnet/pg/pg.h>
-#include <vnet/nsh-vxlan-gpe/nsh_vxlan_gpe.h>
-
-vlib_node_registration_t nsh_vxlan_gpe_input_node;
-
-/* From nsh-gre */
-u8 * format_nsh_header_with_length (u8 * s, va_list * args);
-
-typedef struct {
- u32 next_index;
- u32 tunnel_index;
- u32 error;
- nsh_header_t h;
-} nsh_vxlan_gpe_rx_trace_t;
-
-static u8 * format_nsh_vxlan_gpe_rx_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 *);
- nsh_vxlan_gpe_rx_trace_t * t = va_arg (*args, nsh_vxlan_gpe_rx_trace_t *);
-
- if (t->tunnel_index != ~0)
- {
- s = format (s, "NSH-VXLAN: tunnel %d next %d error %d", t->tunnel_index,
- t->next_index, t->error);
- }
- else
- {
- s = format (s, "NSH-VXLAN: no tunnel next %d error %d\n", t->next_index,
- t->error);
- }
- s = format (s, "\n %U", format_nsh_header_with_length, &t->h,
- (u32) sizeof (t->h) /* max size */);
- return s;
-}
-
-static uword
-nsh_vxlan_gpe_input (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * from_frame)
-{
- u32 n_left_from, next_index, * from, * to_next;
- nsh_vxlan_gpe_main_t * ngm = &nsh_vxlan_gpe_main;
- vnet_main_t * vnm = ngm->vnet_main;
- vnet_interface_main_t * im = &vnm->interface_main;
- u32 last_tunnel_index = ~0;
- nsh_vxlan_gpe_tunnel_key_t last_key;
- u32 pkts_decapsulated = 0;
- u32 cpu_index = os_get_cpu_number();
- u32 stats_sw_if_index, stats_n_packets, stats_n_bytes;
-
- memset (&last_key, 0xff, sizeof (last_key));
-
- from = vlib_frame_vector_args (from_frame);
- n_left_from = from_frame->n_vectors;
-
- next_index = node->cached_next_index;
- stats_sw_if_index = node->runtime_data[0];
- stats_n_packets = stats_n_bytes = 0;
-
- 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 >= 4 && n_left_to_next >= 2)
- {
- u32 bi0, bi1;
- vlib_buffer_t * b0, * b1;
- u32 next0, next1;
- ip4_vxlan_gpe_and_nsh_header_t * iuvn0, * iuvn1;
- uword * p0, * p1;
- u32 tunnel_index0, tunnel_index1;
- nsh_vxlan_gpe_tunnel_t * t0, * t1;
- nsh_vxlan_gpe_tunnel_key_t key0, key1;
- u32 error0, error1;
- u32 sw_if_index0, sw_if_index1, len0, len1;
-
- /* Prefetch next iteration. */
- {
- vlib_buffer_t * p2, * p3;
-
- p2 = vlib_get_buffer (vm, from[2]);
- p3 = vlib_get_buffer (vm, from[3]);
-
- vlib_prefetch_buffer_header (p2, LOAD);
- vlib_prefetch_buffer_header (p3, LOAD);
-
- CLIB_PREFETCH (p2->data, 2*CLIB_CACHE_LINE_BYTES, LOAD);
- CLIB_PREFETCH (p3->data, 2*CLIB_CACHE_LINE_BYTES, LOAD);
- }
-
- bi0 = from[0];
- bi1 = from[1];
- to_next[0] = bi0;
- to_next[1] = bi1;
- from += 2;
- to_next += 2;
- n_left_to_next -= 2;
- n_left_from -= 2;
-
- b0 = vlib_get_buffer (vm, bi0);
- b1 = vlib_get_buffer (vm, bi1);
-
- /* udp leaves current_data pointing at the vxlan header */
- vlib_buffer_advance
- (b0, -(word)(sizeof(udp_header_t)+sizeof(ip4_header_t)));
- vlib_buffer_advance
- (b1, -(word)(sizeof(udp_header_t)+sizeof(ip4_header_t)));
-
- iuvn0 = vlib_buffer_get_current (b0);
- iuvn1 = vlib_buffer_get_current (b1);
-
- /* pop (ip, udp, vxlan, nsh) */
- vlib_buffer_advance (b0, sizeof (*iuvn0));
- vlib_buffer_advance (b1, sizeof (*iuvn1));
-
- tunnel_index0 = ~0;
- error0 = 0;
- next0 = NSH_VXLAN_GPE_INPUT_NEXT_DROP;
-
- tunnel_index1 = ~0;
- error1 = 0;
- next1 = NSH_VXLAN_GPE_INPUT_NEXT_DROP;
-
- key0.src = iuvn0->ip4.src_address.as_u32;
- key0.vni = iuvn0->vxlan.vni_res;
- key0.spi_si = iuvn0->nsh.spi_si;
- key0.pad = 0;
-
- if (PREDICT_FALSE ((key0.as_u64[0] != last_key.as_u64[0])
- || (key0.as_u64[1] != last_key.as_u64[1])))
- {
- p0 = hash_get_mem (ngm->nsh_vxlan_gpe_tunnel_by_key, &key0);
-
- if (p0 == 0)
- {
- error0 = NSH_VXLAN_GPE_ERROR_NO_SUCH_TUNNEL;
- goto trace0;
- }
-
- last_key.as_u64[0] = key0.as_u64[0];
- last_key.as_u64[1] = key0.as_u64[1];
- tunnel_index0 = last_tunnel_index = p0[0];
- }
- else
- tunnel_index0 = last_tunnel_index;
-
- t0 = pool_elt_at_index (ngm->tunnels, tunnel_index0);
-
- next0 = t0->decap_next_index;
- sw_if_index0 = t0->sw_if_index;
- len0 = vlib_buffer_length_in_chain(vm, b0);
-
- /* Required to make the l2 tag push / pop code work on l2 subifs */
- vnet_update_l2_len (b0);
-
- if (next0 == NSH_VXLAN_GPE_INPUT_NEXT_NSH_VXLAN_GPE_ENCAP)
- {
- /*
- * Functioning as SFF (ie "half NSH tunnel mode")
- * If ingress (we are in decap.c) with NSH header, and 'decap next nsh-vxlan-gpe' then "NSH switch"
- * 1. Take DST, remap to SRC, remap other keys in place
- * 2. Look up new t0 as per above
- * 3. Set sw_if_index[VLIB_TX] to be t0->sw_if_index
- */
- uword * next_p0;
- nsh_vxlan_gpe_tunnel_t * next_t0;
- nsh_vxlan_gpe_tunnel_key_t next_key0;
-
- next_key0.src = iuvn0->ip4.dst_address.as_u32;
- next_key0.vni = iuvn0->vxlan.vni_res;
- next_key0.spi_si = iuvn0->nsh.spi_si;
- next_key0.pad = 0;
-
- next_p0 = hash_get_mem (ngm->nsh_vxlan_gpe_tunnel_by_key, &next_key0);
-
- if (next_p0 == 0)
- {
- error0 = NSH_VXLAN_GPE_ERROR_NO_SUCH_TUNNEL;
- goto trace0;
- }
- next_t0 = pool_elt_at_index (ngm->tunnels, next_p0[0]);
- vnet_buffer(b0)->sw_if_index[VLIB_TX] = next_t0->sw_if_index;
-
- }
- else
- {
- /*
- * ip[46] lookup in the configured FIB
- * nsh-vxlan-gpe-encap, here's the encap tunnel sw_if_index
- */
- vnet_buffer(b0)->sw_if_index[VLIB_TX] = t0->decap_fib_index;
- }
-
- pkts_decapsulated++;
- stats_n_packets += 1;
- stats_n_bytes += len0;
-
- if (PREDICT_FALSE(sw_if_index0 != stats_sw_if_index))
- {
- stats_n_packets -= 1;
- stats_n_bytes -= len0;
- if (stats_n_packets)
- vlib_increment_combined_counter(
- im->combined_sw_if_counters + VNET_INTERFACE_COUNTER_RX,
- cpu_index, stats_sw_if_index, stats_n_packets, stats_n_bytes);
- stats_n_packets = 1;
- stats_n_bytes = len0;
- stats_sw_if_index = sw_if_index0;
- }
-
- trace0:
- b0->error = error0 ? node->errors[error0] : 0;
-
- if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED))
- {
- nsh_vxlan_gpe_rx_trace_t *tr
- = vlib_add_trace (vm, node, b0, sizeof (*tr));
- tr->next_index = next0;
- tr->error = error0;
- tr->tunnel_index = tunnel_index0;
- tr->h = iuvn0->nsh;
- }
-
- key1.src = iuvn1->ip4.src_address.as_u32;
- key1.vni = iuvn1->vxlan.vni_res;
- key1.spi_si = iuvn1->nsh.spi_si;
- key1.pad = 0;
-
- if (PREDICT_FALSE ((key1.as_u64[0] != last_key.as_u64[0])
- || (key1.as_u64[1] != last_key.as_u64[1])))
- {
- p1 = hash_get_mem (ngm->nsh_vxlan_gpe_tunnel_by_key, &key1);
-
- if (p1 == 0)
- {
- error1 = NSH_VXLAN_GPE_ERROR_NO_SUCH_TUNNEL;
- goto trace1;
- }
-
- last_key.as_u64[0] = key1.as_u64[0];
- last_key.as_u64[1] = key1.as_u64[1];
- tunnel_index1 = last_tunnel_index = p1[0];
- }
- else
- tunnel_index1 = last_tunnel_index;
-
- t1 = pool_elt_at_index (ngm->tunnels, tunnel_index1);
-
- next1 = t1->decap_next_index;
- sw_if_index1 = t1->sw_if_index;
- len1 = vlib_buffer_length_in_chain(vm, b1);
-
- /* Required to make the l2 tag push / pop code work on l2 subifs */
- vnet_update_l2_len (b1);
-
- if (next1 == NSH_VXLAN_GPE_INPUT_NEXT_NSH_VXLAN_GPE_ENCAP)
- {
- /*
- * Functioning as SFF (ie "half NSH tunnel mode")
- * If ingress (we are in decap.c) with NSH header, and 'decap next nsh-vxlan-gpe' then "NSH switch"
- * 1. Take DST, remap to SRC, remap other keys in place
- * 2. Look up new t0 as per above
- * 3. Set sw_if_index[VLIB_TX] to be t0->sw_if_index
- */
- uword * next_p1;
- nsh_vxlan_gpe_tunnel_t * next_t1;
- nsh_vxlan_gpe_tunnel_key_t next_key1;
-
- next_key1.src = iuvn1->ip4.dst_address.as_u32;
- next_key1.vni = iuvn1->vxlan.vni_res;
- next_key1.spi_si = iuvn1->nsh.spi_si;
- next_key1.pad = 0;
-
- next_p1 = hash_get_mem (ngm->nsh_vxlan_gpe_tunnel_by_key, &next_key1);
-
- if (next_p1 == 0)
- {
- error1 = NSH_VXLAN_GPE_ERROR_NO_SUCH_TUNNEL;
- goto trace1;
- }
- next_t1 = pool_elt_at_index (ngm->tunnels, next_p1[0]);
- vnet_buffer(b1)->sw_if_index[VLIB_TX] = next_t1->sw_if_index;
-
- }
- else
- {
- /*
- * ip[46] lookup in the configured FIB
- * nsh-vxlan-gpe-encap, here's the encap tunnel sw_if_index
- */
- vnet_buffer(b1)->sw_if_index[VLIB_TX] = t1->decap_fib_index;
- }
-
- pkts_decapsulated++;
- stats_n_packets += 1;
- stats_n_bytes += len1;
- /* Batch stats increment on the same vxlan tunnel so counter
- is not incremented per packet */
- if (PREDICT_FALSE(sw_if_index1 != stats_sw_if_index))
- {
- stats_n_packets -= 1;
- stats_n_bytes -= len1;
- if (stats_n_packets)
- vlib_increment_combined_counter(
- im->combined_sw_if_counters + VNET_INTERFACE_COUNTER_RX,
- cpu_index, stats_sw_if_index, stats_n_packets, stats_n_bytes);
- stats_n_packets = 1;
- stats_n_bytes = len1;
- stats_sw_if_index = sw_if_index1;
- }
- vnet_buffer(b1)->sw_if_index[VLIB_TX] = t1->decap_fib_index;
-
- trace1:
- b1->error = error1 ? node->errors[error1] : 0;
-
- if (PREDICT_FALSE(b1->flags & VLIB_BUFFER_IS_TRACED))
- {
- nsh_vxlan_gpe_rx_trace_t *tr
- = vlib_add_trace (vm, node, b1, sizeof (*tr));
- tr->next_index = next1;
- tr->error = error1;
- tr->tunnel_index = tunnel_index1;
- tr->h = iuvn1->nsh;
- }
-
- vlib_validate_buffer_enqueue_x2 (vm, node, next_index,
- to_next, n_left_to_next,
- bi0, bi1, next0, next1);
- }
-
- while (n_left_from > 0 && n_left_to_next > 0)
- {
- u32 bi0;
- vlib_buffer_t * b0;
- u32 next0;
- ip4_vxlan_gpe_and_nsh_header_t * iuvn0;
- uword * p0;
- u32 tunnel_index0;
- nsh_vxlan_gpe_tunnel_t * t0;
- nsh_vxlan_gpe_tunnel_key_t key0;
- u32 error0;
- u32 sw_if_index0, len0;
-
- 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);
-
- /* udp leaves current_data pointing at the vxlan header */
- vlib_buffer_advance
- (b0, -(word)(sizeof(udp_header_t)+sizeof(ip4_header_t)));
-
- iuvn0 = vlib_buffer_get_current (b0);
-
- /* pop (ip, udp, vxlan, nsh) */
- vlib_buffer_advance (b0, sizeof (*iuvn0));
-
- tunnel_index0 = ~0;
- error0 = 0;
- next0 = NSH_VXLAN_GPE_INPUT_NEXT_DROP;
-
- key0.src = iuvn0->ip4.src_address.as_u32;
- key0.vni = iuvn0->vxlan.vni_res;
- key0.spi_si = iuvn0->nsh.spi_si;
- key0.pad = 0;
-
- if (PREDICT_FALSE ((key0.as_u64[0] != last_key.as_u64[0])
- || (key0.as_u64[1] != last_key.as_u64[1])))
- {
- p0 = hash_get_mem (ngm->nsh_vxlan_gpe_tunnel_by_key, &key0);
-
- if (p0 == 0)
- {
- error0 = NSH_VXLAN_GPE_ERROR_NO_SUCH_TUNNEL;
- goto trace00;
- }
-
- last_key.as_u64[0] = key0.as_u64[0];
- last_key.as_u64[1] = key0.as_u64[1];
- tunnel_index0 = last_tunnel_index = p0[0];
- }
- else
- tunnel_index0 = last_tunnel_index;
-
- t0 = pool_elt_at_index (ngm->tunnels, tunnel_index0);
-
- next0 = t0->decap_next_index;
- sw_if_index0 = t0->sw_if_index;
- len0 = vlib_buffer_length_in_chain(vm, b0);
-
- /* Required to make the l2 tag push / pop code work on l2 subifs */
- vnet_update_l2_len (b0);
-
- if (next0 == NSH_VXLAN_GPE_INPUT_NEXT_NSH_VXLAN_GPE_ENCAP)
- {
- /*
- * Functioning as SFF (ie "half NSH tunnel mode")
- * If ingress (we are in decap.c) with NSH header, and 'decap next nsh-vxlan-gpe' then "NSH switch"
- * 1. Take DST, remap to SRC, remap other keys in place
- * 2. Look up new t0 as per above
- * 3. Set sw_if_index[VLIB_TX] to be t0->sw_if_index
- */
- uword * next_p0;
- nsh_vxlan_gpe_tunnel_t * next_t0;
- nsh_vxlan_gpe_tunnel_key_t next_key0;
-
- next_key0.src = iuvn0->ip4.dst_address.as_u32;
- next_key0.vni = iuvn0->vxlan.vni_res;
- next_key0.spi_si = iuvn0->nsh.spi_si;
- next_key0.pad = 0;
-
- next_p0 = hash_get_mem (ngm->nsh_vxlan_gpe_tunnel_by_key, &next_key0);
-
- if (next_p0 == 0)
- {
- error0 = NSH_VXLAN_GPE_ERROR_NO_SUCH_TUNNEL;
- goto trace00;
- }
- next_t0 = pool_elt_at_index (ngm->tunnels, next_p0[0]);
- vnet_buffer(b0)->sw_if_index[VLIB_TX] = next_t0->sw_if_index;
-
- }
- else
- {
- /*
- * ip[46] lookup in the configured FIB
- * nsh-vxlan-gpe-encap, here's the encap tunnel sw_if_index
- */
- vnet_buffer(b0)->sw_if_index[VLIB_TX] = t0->decap_fib_index;
- }
-
- pkts_decapsulated ++;
-
- stats_n_packets += 1;
- stats_n_bytes += len0;
-
- /* Batch stats increment on the same nsh-vxlan-gpe tunnel so counter
- is not incremented per packet */
- if (PREDICT_FALSE(sw_if_index0 != stats_sw_if_index))
- {
- stats_n_packets -= 1;
- stats_n_bytes -= len0;
- if (stats_n_packets)
- vlib_increment_combined_counter(
- im->combined_sw_if_counters + VNET_INTERFACE_COUNTER_RX,
- cpu_index, stats_sw_if_index, stats_n_packets, stats_n_bytes);
- stats_n_packets = 1;
- stats_n_bytes = len0;
- stats_sw_if_index = sw_if_index0;
- }
-
- trace00:
- b0->error = error0 ? node->errors[error0] : 0;
-
- if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED))
- {
- nsh_vxlan_gpe_rx_trace_t *tr
- = vlib_add_trace (vm, node, b0, sizeof (*tr));
- tr->next_index = next0;
- tr->error = error0;
- tr->tunnel_index = tunnel_index0;
- tr->h = iuvn0->nsh;
- }
- 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);
- }
- vlib_node_increment_counter (vm, nsh_vxlan_gpe_input_node.index,
- NSH_VXLAN_GPE_ERROR_DECAPSULATED,
- pkts_decapsulated);
- /* Increment any remaining batch stats */
- if (stats_n_packets)
- {
- vlib_increment_combined_counter(
- im->combined_sw_if_counters + VNET_INTERFACE_COUNTER_RX, cpu_index,
- stats_sw_if_index, stats_n_packets, stats_n_bytes);
- node->runtime_data[0] = stats_sw_if_index;
- }
- return from_frame->n_vectors;
-}
-
-static char * nsh_vxlan_gpe_error_strings[] = {
-#define nsh_vxlan_gpe_error(n,s) s,
-#include <vnet/nsh-vxlan-gpe/nsh_vxlan_gpe_error.def>
-#undef nsh_vxlan_gpe_error
-#undef _
-};
-
-VLIB_REGISTER_NODE (nsh_vxlan_gpe_input_node) = {
- .function = nsh_vxlan_gpe_input,
- .name = "nsh-vxlan-gpe-input",
- /* Takes a vector of packets. */
- .vector_size = sizeof (u32),
-
- .n_errors = NSH_VXLAN_GPE_N_ERROR,
- .error_strings = nsh_vxlan_gpe_error_strings,
-
- .n_next_nodes = NSH_VXLAN_GPE_INPUT_N_NEXT,
- .next_nodes = {
-#define _(s,n) [NSH_VXLAN_GPE_INPUT_NEXT_##s] = n,
- foreach_nsh_vxlan_gpe_input_next
-#undef _
- },
-
- .format_buffer = format_nsh_header_with_length,
- .format_trace = format_nsh_vxlan_gpe_rx_trace,
- // $$$$ .unformat_buffer = unformat_nsh_vxlan_gpe_header,
-};