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authorOle Troan <ot@cisco.com>2019-12-19 11:55:54 +0100
committerAndrew Yourtchenko <ayourtch@gmail.com>2020-02-05 15:45:30 +0000
commit2c6639c695aebf0cd5ac74ad31fd331547fa0126 (patch)
treedd962dda017462107eca0b838c159ea1e19f7b8a /src/plugins/nat/dslite_ce_encap.c
parent72e31bc2d9b910147c09e1c329713fccc873a018 (diff)
nat: move dslite to separate sub-plugin
Type: refactor Change-Id: If3d9f16f3a06c10b354f1eef674e8db5f3c44de7 Signed-off-by: Ole Troan <ot@cisco.com>
Diffstat (limited to 'src/plugins/nat/dslite_ce_encap.c')
-rw-r--r--src/plugins/nat/dslite_ce_encap.c134
1 files changed, 0 insertions, 134 deletions
diff --git a/src/plugins/nat/dslite_ce_encap.c b/src/plugins/nat/dslite_ce_encap.c
deleted file mode 100644
index 39ff7975c3a..00000000000
--- a/src/plugins/nat/dslite_ce_encap.c
+++ /dev/null
@@ -1,134 +0,0 @@
-/*
- * 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 <nat/dslite.h>
-#include <nat/nat_inlines.h>
-
-typedef enum
-{
- DSLITE_CE_ENCAP_NEXT_IP6_LOOKUP,
- DSLITE_CE_ENCAP_NEXT_DROP,
- DSLITE_CE_ENCAP_N_NEXT,
-} dslite_ce_encap_next_t;
-
-static char *dslite_ce_encap_error_strings[] = {
-#define _(sym,string) string,
- foreach_dslite_error
-#undef _
-};
-
-VLIB_NODE_FN (dslite_ce_encap_node) (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame)
-{
- u32 n_left_from, *from, *to_next;
- dslite_ce_encap_next_t next_index;
- dslite_main_t *dm = &dslite_main;
-
- from = vlib_frame_vector_args (frame);
- n_left_from = frame->n_vectors;
- next_index = node->cached_next_index;
-
- 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;
- vlib_buffer_t *b0;
- u32 next0 = DSLITE_CE_ENCAP_NEXT_IP6_LOOKUP;
- u8 error0 = DSLITE_ERROR_CE_ENCAP;
- ip4_header_t *ip40;
- ip6_header_t *ip60;
- u32 proto0;
-
- /* speculatively enqueue b0 to the current next frame */
- 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);
- ip40 = vlib_buffer_get_current (b0);
- proto0 = ip_proto_to_snat_proto (ip40->protocol);
-
- if (PREDICT_FALSE (proto0 == ~0))
- {
- error0 = DSLITE_ERROR_UNSUPPORTED_PROTOCOL;
- next0 = DSLITE_CE_ENCAP_NEXT_DROP;
- goto trace0;
- }
-
- /* Construct IPv6 header */
- vlib_buffer_advance (b0, -(sizeof (ip6_header_t)));
- ip60 = vlib_buffer_get_current (b0);
- ip60->ip_version_traffic_class_and_flow_label =
- clib_host_to_net_u32 ((6 << 28) + (ip40->tos << 20));
- ip60->payload_length = ip40->length;
- ip60->protocol = IP_PROTOCOL_IP_IN_IP;
- ip60->hop_limit = ip40->ttl;
- ip60->dst_address.as_u64[0] = dm->aftr_ip6_addr.as_u64[0];
- ip60->dst_address.as_u64[1] = dm->aftr_ip6_addr.as_u64[1];
- ip60->src_address.as_u64[0] = dm->b4_ip6_addr.as_u64[0];
- ip60->src_address.as_u64[1] = dm->b4_ip6_addr.as_u64[1];
-
- trace0:
- if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE)
- && (b0->flags & VLIB_BUFFER_IS_TRACED)))
- {
- dslite_trace_t *t = vlib_add_trace (vm, node, b0, sizeof (*t));
- t->next_index = next0;
- }
-
- b0->error = node->errors[error0];
-
- /* 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;
-}
-
-/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (dslite_ce_encap_node) = {
- .name = "dslite-ce-encap",
- .vector_size = sizeof (u32),
- .format_trace = format_dslite_ce_trace,
- .type = VLIB_NODE_TYPE_INTERNAL,
- .n_errors = ARRAY_LEN (dslite_ce_encap_error_strings),
- .error_strings = dslite_ce_encap_error_strings,
- .n_next_nodes = DSLITE_CE_ENCAP_N_NEXT,
- /* edit / add dispositions here */
- .next_nodes = {
- [DSLITE_CE_ENCAP_NEXT_DROP] = "error-drop",
- [DSLITE_CE_ENCAP_NEXT_IP6_LOOKUP] = "ip6-lookup",
- },
-};
-/* *INDENT-ON* */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */