diff options
Diffstat (limited to 'plugins/sixrd-plugin/sixrd/ip4_sixrd.c')
| -rw-r--r-- | plugins/sixrd-plugin/sixrd/ip4_sixrd.c | 127 |
1 files changed, 0 insertions, 127 deletions
diff --git a/plugins/sixrd-plugin/sixrd/ip4_sixrd.c b/plugins/sixrd-plugin/sixrd/ip4_sixrd.c deleted file mode 100644 index 2fb8015d994..00000000000 --- a/plugins/sixrd-plugin/sixrd/ip4_sixrd.c +++ /dev/null @@ -1,127 +0,0 @@ -/*--------------------------------------------------------------------------- - * Copyright (c) 2009-2014 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 "sixrd.h" - -static vlib_node_registration_t ip4_sixrd_node; - -typedef enum { - IP4_SIXRD_NEXT_IP6_LOOKUP, - IP4_SIXRD_NEXT_DROP, - IP4_SIXRD_N_NEXT, -} ip4_sixrd_next_t; - -/* - * ip4_sixrd_sec_check - */ -static_always_inline void -ip4_sixrd_sec_check (sixrd_domain_t *d, ip4_address_t sa4, ip6_address_t sa6, u8 *error) -{ - u32 a = sixrd_get_addr(d, sa6.as_u64[0]); - clib_warning("Security check: %U %U", format_ip4_address, &a, format_ip4_address, &sa4); - if (PREDICT_FALSE(sixrd_get_addr(d, sa6.as_u64[0]) != sa4.as_u32)) - *error = SIXRD_ERROR_SEC_CHECK; -} - -/* - * ip4_sixrd - */ -static uword -ip4_sixrd (vlib_main_t *vm, - vlib_node_runtime_t *node, - vlib_frame_t *frame) -{ - u32 n_left_from, *from, next_index, *to_next, n_left_to_next; - vlib_node_runtime_t *error_node = vlib_node_get_runtime(vm, ip4_sixrd_node.index); - u32 decap = 0; - - from = vlib_frame_vector_args(frame); - n_left_from = frame->n_vectors; - next_index = node->cached_next_index; - while (n_left_from > 0) { - vlib_get_next_frame(vm, node, next_index, to_next, n_left_to_next); - - /* Single loop */ - while (n_left_from > 0 && n_left_to_next > 0) { - u32 pi0; - vlib_buffer_t *p0; - u8 error0 = SIXRD_ERROR_NONE; - sixrd_domain_t *d0 = 0; - ip4_header_t *ip40; - ip6_header_t *ip60; - u32 sixrd_domain_index0 = ~0; - u32 next0; - - pi0 = to_next[0] = from[0]; - from += 1; - n_left_from -= 1; - to_next +=1; - n_left_to_next -= 1; - - p0 = vlib_get_buffer(vm, pi0); - ip40 = vlib_buffer_get_current(p0); - - /* Throw away anything that isn't IP in IP. */ - if (PREDICT_TRUE(ip40->protocol == IP_PROTOCOL_IPV6 && clib_net_to_host_u16(ip40->length) >= 60)) { - vlib_buffer_advance(p0, sizeof(ip4_header_t)); - ip60 = vlib_buffer_get_current(p0); - d0 = ip4_sixrd_get_domain(vnet_buffer(p0)->ip.adj_index[VLIB_TX], (ip6_address_t *)&ip60->src_address, - &sixrd_domain_index0, &error0); - } else { - error0 = SIXRD_ERROR_BAD_PROTOCOL; - } - if (d0) { - /* SIXRD inbound security check */ - ip4_sixrd_sec_check(d0, ip40->src_address, ip60->src_address, &error0); - } - - next0 = error0 == SIXRD_ERROR_NONE ? IP4_SIXRD_NEXT_IP6_LOOKUP : IP4_SIXRD_NEXT_DROP; - - if (PREDICT_FALSE(p0->flags & VLIB_BUFFER_IS_TRACED)) { - sixrd_trace_t *tr = vlib_add_trace(vm, node, p0, sizeof(*tr)); - tr->sixrd_domain_index = sixrd_domain_index0; - } - - p0->error = error_node->errors[error0]; - if (PREDICT_TRUE(error0 == SIXRD_ERROR_NONE)) decap++; - vlib_validate_buffer_enqueue_x1(vm, node, next_index, to_next, n_left_to_next, pi0, next0); - - } - vlib_put_next_frame(vm, node, next_index, n_left_to_next); - } - vlib_node_increment_counter(vm, ip4_sixrd_node.index, SIXRD_ERROR_DECAPSULATED, decap); - - return frame->n_vectors; -} - -static char *sixrd_error_strings[] = { -#define _(sym,string) string, - foreach_sixrd_error -#undef _ -}; - -VLIB_REGISTER_NODE(ip4_sixrd_node,static) = { - .function = ip4_sixrd, - .name = "ip4-sixrd", - .vector_size = sizeof(u32), - .format_trace = format_sixrd_trace, - .n_errors = SIXRD_N_ERROR, - .error_strings = sixrd_error_strings, - .n_next_nodes = IP4_SIXRD_N_NEXT, - .next_nodes = { - [IP4_SIXRD_NEXT_IP6_LOOKUP] = "ip6-lookup", - [IP4_SIXRD_NEXT_DROP] = "error-drop", - }, -}; |