diff options
Diffstat (limited to 'src/plugins/sixrd/ip4_sixrd.c')
| -rw-r--r-- | src/plugins/sixrd/ip4_sixrd.c | 165 |
1 files changed, 0 insertions, 165 deletions
diff --git a/src/plugins/sixrd/ip4_sixrd.c b/src/plugins/sixrd/ip4_sixrd.c deleted file mode 100644 index f700f14978c..00000000000 --- a/src/plugins/sixrd/ip4_sixrd.c +++ /dev/null @@ -1,165 +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" - -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; - -typedef struct { - u32 tunnel_id; - u32 length; - ip4_address_t src; - ip4_address_t dst; -} sixrd_rx_trace_t; - -u8 * -format_sixrd_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 *); - sixrd_rx_trace_t *t = va_arg (*args, sixrd_rx_trace_t *); - - s = format (s, "6RD: tunnel %d len %d src %U dst %U", - t->tunnel_id, clib_net_to_host_u16 (t->length), - format_ip4_address, &t->src, format_ip4_address, &t->dst); - return s; -} - -/* - * ip4_sixrd_sec_check - */ -static_always_inline void -ip4_sixrd_sec_check(sixrd_tunnel_t *t, ip4_address_t sa4, - ip6_address_t sa6, u8 *error) { - if (PREDICT_FALSE(sixrd_get_addr_net(t, sa6.as_u64[0]) != sa4.as_u32)) - *error = SIXRD_ERROR_SEC_CHECK; -} - -/* - * ip4_sixrd - */ -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); - vnet_interface_main_t * im = &vnet_get_main()->interface_main; - u32 thread_index = vlib_get_thread_index (); - - 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_tunnel_t *t0 = 0; - ip4_header_t *ip40; - ip6_header_t *ip60; - u32 tunnel_sw_if_index = ~0; - u32 next0 = IP4_SIXRD_NEXT_DROP; - - 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)); - t0 = ip4_sixrd_get_tunnel(vnet_buffer(p0)->ip.adj_index[VLIB_TX], (ip4_address_t *)&ip40->dst_address, &error0); - } else { - error0 = SIXRD_ERROR_BAD_PROTOCOL; - } - - if (!t0) { - error0 = SIXRD_ERROR_NO_TUNNEL; - goto error; - } - - tunnel_sw_if_index = t0->sw_if_index; - - /* SIXRD inbound security check */ - if (t0->security_check) { - ip60 = vlib_buffer_get_current(p0); - ip4_sixrd_sec_check(t0, 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_rx_trace_t *tr = vlib_add_trace(vm, node, p0, sizeof(*tr)); - tr->tunnel_id = tunnel_sw_if_index; - tr->length = ip40->length; - tr->src.as_u32 = ip40->src_address.as_u32; - tr->dst.as_u32 = ip40->dst_address.as_u32; - } - - error: - if (PREDICT_TRUE(error0 == SIXRD_ERROR_NONE)) { - u32 len = vlib_buffer_length_in_chain (vm, p0); - vlib_increment_combined_counter (im->combined_sw_if_counters - + VNET_INTERFACE_COUNTER_RX, - thread_index, - tunnel_sw_if_index, - 1 /* packets */ , - len /* bytes */ ); - - vnet_buffer (p0)->sw_if_index[VLIB_RX] = tunnel_sw_if_index; - } else { - p0->error = error_node->errors[error0]; - } - 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); - } - return frame->n_vectors; -} - -static char *sixrd_error_strings[] = { -#define _(sym, string) string, - foreach_sixrd_error -#undef _ -}; - -VLIB_REGISTER_NODE(ip4_sixrd_node) = { - .function = ip4_sixrd, - .name = "ip4-sixrd", - .vector_size = sizeof(u32), - .format_trace = format_sixrd_rx_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", - }, -}; |