diff options
Diffstat (limited to 'vnet/vnet/ip/icmp4.c')
| -rw-r--r-- | vnet/vnet/ip/icmp4.c | 784 |
1 files changed, 0 insertions, 784 deletions
diff --git a/vnet/vnet/ip/icmp4.c b/vnet/vnet/ip/icmp4.c deleted file mode 100644 index c3afff72f26..00000000000 --- a/vnet/vnet/ip/icmp4.c +++ /dev/null @@ -1,784 +0,0 @@ -/* - * Copyright (c) 2015 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. - */ -/* - * ip/icmp4.c: ipv4 icmp - * - * Copyright (c) 2008 Eliot Dresselhaus - * - * Permission is hereby granted, free of charge, to any person obtaining - * a copy of this software and associated documentation files (the - * "Software"), to deal in the Software without restriction, including - * without limitation the rights to use, copy, modify, merge, publish, - * distribute, sublicense, and/or sell copies of the Software, and to - * permit persons to whom the Software is furnished to do so, subject to - * the following conditions: - * - * The above copyright notice and this permission notice shall be - * included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, - * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND - * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE - * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION - * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION - * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - -#include <vlib/vlib.h> -#include <vnet/ip/ip.h> -#include <vnet/pg/pg.h> - - -static char *icmp_error_strings[] = { -#define _(f,s) s, - foreach_icmp4_error -#undef _ -}; - -static u8 * -format_ip4_icmp_type_and_code (u8 * s, va_list * args) -{ - icmp4_type_t type = va_arg (*args, int); - u8 code = va_arg (*args, int); - char *t = 0; - -#define _(n,f) case n: t = #f; break; - - switch (type) - { - foreach_icmp4_type; - - default: - break; - } - -#undef _ - - if (!t) - return format (s, "unknown 0x%x", type); - - s = format (s, "%s", t); - - t = 0; - switch ((type << 8) | code) - { -#define _(a,n,f) case (ICMP4_##a << 8) | (n): t = #f; break; - - foreach_icmp4_code; - -#undef _ - } - - if (t) - s = format (s, " %s", t); - - return s; -} - -static u8 * -format_ip4_icmp_header (u8 * s, va_list * args) -{ - icmp46_header_t *icmp = va_arg (*args, icmp46_header_t *); - u32 max_header_bytes = va_arg (*args, u32); - - /* Nothing to do. */ - if (max_header_bytes < sizeof (icmp[0])) - return format (s, "ICMP header truncated"); - - s = format (s, "ICMP %U checksum 0x%x", - format_ip4_icmp_type_and_code, icmp->type, icmp->code, - clib_net_to_host_u16 (icmp->checksum)); - - return s; -} - -static u8 * -format_icmp_input_trace (u8 * s, va_list * va) -{ - CLIB_UNUSED (vlib_main_t * vm) = va_arg (*va, vlib_main_t *); - CLIB_UNUSED (vlib_node_t * node) = va_arg (*va, vlib_node_t *); - icmp_input_trace_t *t = va_arg (*va, icmp_input_trace_t *); - - s = format (s, "%U", - format_ip4_header, t->packet_data, sizeof (t->packet_data)); - - return s; -} - -typedef enum -{ - ICMP_INPUT_NEXT_ERROR, - ICMP_INPUT_N_NEXT, -} icmp_input_next_t; - -typedef struct -{ - uword *type_and_code_by_name; - - uword *type_by_name; - - /* Vector dispatch table indexed by [icmp type]. */ - u8 ip4_input_next_index_by_type[256]; -} icmp4_main_t; - -icmp4_main_t icmp4_main; - -static uword -ip4_icmp_input (vlib_main_t * vm, - vlib_node_runtime_t * node, vlib_frame_t * frame) -{ - icmp4_main_t *im = &icmp4_main; - uword n_packets = frame->n_vectors; - u32 *from, *to_next; - u32 n_left_from, n_left_to_next, next; - - from = vlib_frame_vector_args (frame); - n_left_from = n_packets; - next = node->cached_next_index; - - if (node->flags & VLIB_NODE_FLAG_TRACE) - vlib_trace_frame_buffers_only (vm, node, from, frame->n_vectors, - /* stride */ 1, - sizeof (icmp_input_trace_t)); - - while (n_left_from > 0) - { - vlib_get_next_frame (vm, node, next, to_next, n_left_to_next); - - while (n_left_from > 0 && n_left_to_next > 0) - { - vlib_buffer_t *p0; - ip4_header_t *ip0; - icmp46_header_t *icmp0; - icmp4_type_t type0; - u32 bi0, next0; - - if (PREDICT_TRUE (n_left_from > 2)) - { - vlib_prefetch_buffer_with_index (vm, from[2], LOAD); - p0 = vlib_get_buffer (vm, from[1]); - ip0 = vlib_buffer_get_current (p0); - CLIB_PREFETCH (ip0, CLIB_CACHE_LINE_BYTES, LOAD); - } - - bi0 = to_next[0] = from[0]; - - from += 1; - n_left_from -= 1; - to_next += 1; - n_left_to_next -= 1; - - p0 = vlib_get_buffer (vm, bi0); - ip0 = vlib_buffer_get_current (p0); - icmp0 = ip4_next_header (ip0); - type0 = icmp0->type; - next0 = im->ip4_input_next_index_by_type[type0]; - - p0->error = node->errors[ICMP4_ERROR_UNKNOWN_TYPE]; - if (PREDICT_FALSE (next0 != next)) - { - vlib_put_next_frame (vm, node, next, n_left_to_next + 1); - next = next0; - vlib_get_next_frame (vm, node, next, to_next, n_left_to_next); - to_next[0] = bi0; - to_next += 1; - n_left_to_next -= 1; - } - } - - vlib_put_next_frame (vm, node, next, n_left_to_next); - } - - return frame->n_vectors; -} - -/* *INDENT-OFF* */ -VLIB_REGISTER_NODE (ip4_icmp_input_node,static) = { - .function = ip4_icmp_input, - .name = "ip4-icmp-input", - - .vector_size = sizeof (u32), - - .format_trace = format_icmp_input_trace, - - .n_errors = ARRAY_LEN (icmp_error_strings), - .error_strings = icmp_error_strings, - - .n_next_nodes = 1, - .next_nodes = { - [ICMP_INPUT_NEXT_ERROR] = "error-punt", - }, -}; -/* *INDENT-ON* */ - -static uword -ip4_icmp_echo_request (vlib_main_t * vm, - vlib_node_runtime_t * node, vlib_frame_t * frame) -{ - uword n_packets = frame->n_vectors; - u32 *from, *to_next; - u32 n_left_from, n_left_to_next, next; - ip4_main_t *i4m = &ip4_main; - u16 *fragment_ids, *fid; - u8 host_config_ttl = i4m->host_config.ttl; - - from = vlib_frame_vector_args (frame); - n_left_from = n_packets; - next = node->cached_next_index; - - if (node->flags & VLIB_NODE_FLAG_TRACE) - vlib_trace_frame_buffers_only (vm, node, from, frame->n_vectors, - /* stride */ 1, - sizeof (icmp_input_trace_t)); - - /* Get random fragment IDs for replies. */ - fid = fragment_ids = clib_random_buffer_get_data (&vm->random_buffer, - n_packets * - sizeof (fragment_ids[0])); - - while (n_left_from > 0) - { - vlib_get_next_frame (vm, node, next, to_next, n_left_to_next); - - while (n_left_from > 2 && n_left_to_next > 2) - { - vlib_buffer_t *p0, *p1; - ip4_header_t *ip0, *ip1; - icmp46_header_t *icmp0, *icmp1; - u32 bi0, src0, dst0; - u32 bi1, src1, dst1; - ip_csum_t sum0, sum1; - - bi0 = to_next[0] = from[0]; - bi1 = to_next[1] = from[1]; - - from += 2; - n_left_from -= 2; - to_next += 2; - n_left_to_next -= 2; - - p0 = vlib_get_buffer (vm, bi0); - p1 = vlib_get_buffer (vm, bi1); - ip0 = vlib_buffer_get_current (p0); - ip1 = vlib_buffer_get_current (p1); - icmp0 = ip4_next_header (ip0); - icmp1 = ip4_next_header (ip1); - - vnet_buffer (p0)->sw_if_index[VLIB_RX] = - vnet_main.local_interface_sw_if_index; - vnet_buffer (p1)->sw_if_index[VLIB_RX] = - vnet_main.local_interface_sw_if_index; - - /* Update ICMP checksum. */ - sum0 = icmp0->checksum; - sum1 = icmp1->checksum; - - ASSERT (icmp0->type == ICMP4_echo_request); - ASSERT (icmp1->type == ICMP4_echo_request); - sum0 = ip_csum_update (sum0, ICMP4_echo_request, ICMP4_echo_reply, - icmp46_header_t, type); - sum1 = ip_csum_update (sum1, ICMP4_echo_request, ICMP4_echo_reply, - icmp46_header_t, type); - icmp0->type = ICMP4_echo_reply; - icmp1->type = ICMP4_echo_reply; - - icmp0->checksum = ip_csum_fold (sum0); - icmp1->checksum = ip_csum_fold (sum1); - - src0 = ip0->src_address.data_u32; - src1 = ip1->src_address.data_u32; - dst0 = ip0->dst_address.data_u32; - dst1 = ip1->dst_address.data_u32; - - /* Swap source and destination address. - Does not change checksum. */ - ip0->src_address.data_u32 = dst0; - ip1->src_address.data_u32 = dst1; - ip0->dst_address.data_u32 = src0; - ip1->dst_address.data_u32 = src1; - - /* Update IP checksum. */ - sum0 = ip0->checksum; - sum1 = ip1->checksum; - - sum0 = ip_csum_update (sum0, ip0->ttl, host_config_ttl, - ip4_header_t, ttl); - sum1 = ip_csum_update (sum1, ip1->ttl, host_config_ttl, - ip4_header_t, ttl); - ip0->ttl = host_config_ttl; - ip1->ttl = host_config_ttl; - - /* New fragment id. */ - sum0 = ip_csum_update (sum0, ip0->fragment_id, fid[0], - ip4_header_t, fragment_id); - sum1 = ip_csum_update (sum1, ip1->fragment_id, fid[1], - ip4_header_t, fragment_id); - ip0->fragment_id = fid[0]; - ip1->fragment_id = fid[1]; - fid += 2; - - ip0->checksum = ip_csum_fold (sum0); - ip1->checksum = ip_csum_fold (sum1); - - ASSERT (ip0->checksum == ip4_header_checksum (ip0)); - ASSERT (ip1->checksum == ip4_header_checksum (ip1)); - - p0->flags |= VNET_BUFFER_LOCALLY_ORIGINATED; - p1->flags |= VNET_BUFFER_LOCALLY_ORIGINATED; - } - - while (n_left_from > 0 && n_left_to_next > 0) - { - vlib_buffer_t *p0; - ip4_header_t *ip0; - icmp46_header_t *icmp0; - u32 bi0, src0, dst0; - ip_csum_t sum0; - - bi0 = to_next[0] = from[0]; - - from += 1; - n_left_from -= 1; - to_next += 1; - n_left_to_next -= 1; - - p0 = vlib_get_buffer (vm, bi0); - ip0 = vlib_buffer_get_current (p0); - icmp0 = ip4_next_header (ip0); - - vnet_buffer (p0)->sw_if_index[VLIB_RX] = - vnet_main.local_interface_sw_if_index; - - /* Update ICMP checksum. */ - sum0 = icmp0->checksum; - - ASSERT (icmp0->type == ICMP4_echo_request); - sum0 = ip_csum_update (sum0, ICMP4_echo_request, ICMP4_echo_reply, - icmp46_header_t, type); - icmp0->type = ICMP4_echo_reply; - icmp0->checksum = ip_csum_fold (sum0); - - src0 = ip0->src_address.data_u32; - dst0 = ip0->dst_address.data_u32; - ip0->src_address.data_u32 = dst0; - ip0->dst_address.data_u32 = src0; - - /* Update IP checksum. */ - sum0 = ip0->checksum; - - sum0 = ip_csum_update (sum0, ip0->ttl, host_config_ttl, - ip4_header_t, ttl); - ip0->ttl = host_config_ttl; - - sum0 = ip_csum_update (sum0, ip0->fragment_id, fid[0], - ip4_header_t, fragment_id); - ip0->fragment_id = fid[0]; - fid += 1; - - ip0->checksum = ip_csum_fold (sum0); - - ASSERT (ip0->checksum == ip4_header_checksum (ip0)); - - p0->flags |= VNET_BUFFER_LOCALLY_ORIGINATED; - } - - vlib_put_next_frame (vm, node, next, n_left_to_next); - } - - vlib_error_count (vm, ip4_icmp_input_node.index, - ICMP4_ERROR_ECHO_REPLIES_SENT, frame->n_vectors); - - return frame->n_vectors; -} - -/* *INDENT-OFF* */ -VLIB_REGISTER_NODE (ip4_icmp_echo_request_node,static) = { - .function = ip4_icmp_echo_request, - .name = "ip4-icmp-echo-request", - - .vector_size = sizeof (u32), - - .format_trace = format_icmp_input_trace, - - .n_next_nodes = 1, - .next_nodes = { - [0] = "ip4-load-balance", - }, -}; -/* *INDENT-ON* */ - -typedef enum -{ - IP4_ICMP_ERROR_NEXT_DROP, - IP4_ICMP_ERROR_NEXT_LOOKUP, - IP4_ICMP_ERROR_N_NEXT, -} ip4_icmp_error_next_t; - -void -icmp4_error_set_vnet_buffer (vlib_buffer_t * b, u8 type, u8 code, u32 data) -{ - vnet_buffer (b)->ip.icmp.type = type; - vnet_buffer (b)->ip.icmp.code = code; - vnet_buffer (b)->ip.icmp.data = data; -} - -static u8 -icmp4_icmp_type_to_error (u8 type) -{ - switch (type) - { - case ICMP4_destination_unreachable: - return ICMP4_ERROR_DEST_UNREACH_SENT; - case ICMP4_time_exceeded: - return ICMP4_ERROR_TTL_EXPIRE_SENT; - case ICMP4_parameter_problem: - return ICMP4_ERROR_PARAM_PROBLEM_SENT; - default: - return ICMP4_ERROR_DROP; - } -} - -static uword -ip4_icmp_error (vlib_main_t * vm, - vlib_node_runtime_t * node, vlib_frame_t * frame) -{ - u32 *from, *to_next; - uword n_left_from, n_left_to_next; - ip4_icmp_error_next_t next_index; - ip4_main_t *im = &ip4_main; - ip_lookup_main_t *lm = &im->lookup_main; - - from = vlib_frame_vector_args (frame); - n_left_from = frame->n_vectors; - next_index = node->cached_next_index; - - if (node->flags & VLIB_NODE_FLAG_TRACE) - vlib_trace_frame_buffers_only (vm, node, from, frame->n_vectors, - /* stride */ 1, - sizeof (icmp_input_trace_t)); - - while (n_left_from > 0) - { - 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 pi0 = from[0]; - u32 next0 = IP4_ICMP_ERROR_NEXT_LOOKUP; - u8 error0 = ICMP4_ERROR_NONE; - vlib_buffer_t *p0; - ip4_header_t *ip0, *out_ip0; - icmp46_header_t *icmp0; - u32 sw_if_index0, if_add_index0; - ip_csum_t sum; - - /* Speculatively enqueue p0 to the current next frame */ - to_next[0] = pi0; - from += 1; - to_next += 1; - n_left_from -= 1; - n_left_to_next -= 1; - - p0 = vlib_get_buffer (vm, pi0); - ip0 = vlib_buffer_get_current (p0); - sw_if_index0 = vnet_buffer (p0)->sw_if_index[VLIB_RX]; - - /* - * RFC1812 says to keep as much of the original packet as - * possible within the minimum MTU (576). We cheat "a little" - * here by keeping whatever fits in the first buffer, to be more - * efficient - */ - if (PREDICT_FALSE (p0->total_length_not_including_first_buffer)) - { - /* clear current_length of all other buffers in chain */ - vlib_buffer_t *b = p0; - p0->total_length_not_including_first_buffer = 0; - while (b->flags & VLIB_BUFFER_NEXT_PRESENT) - { - b = vlib_get_buffer (vm, b->next_buffer); - b->current_length = 0; - } - } - p0->current_length = - p0->current_length > 576 ? 576 : p0->current_length; - - /* Add IP header and ICMPv4 header including a 4 byte data field */ - vlib_buffer_advance (p0, - -sizeof (ip4_header_t) - - sizeof (icmp46_header_t) - 4); - out_ip0 = vlib_buffer_get_current (p0); - icmp0 = (icmp46_header_t *) & out_ip0[1]; - - /* Fill ip header fields */ - out_ip0->ip_version_and_header_length = 0x45; - out_ip0->tos = 0; - out_ip0->length = clib_host_to_net_u16 (p0->current_length); - out_ip0->fragment_id = 0; - out_ip0->flags_and_fragment_offset = 0; - out_ip0->ttl = 0xff; - out_ip0->protocol = IP_PROTOCOL_ICMP; - out_ip0->dst_address = ip0->src_address; - if_add_index0 = ~0; - if (PREDICT_TRUE (vec_len (lm->if_address_pool_index_by_sw_if_index) - > sw_if_index0)) - if_add_index0 = - lm->if_address_pool_index_by_sw_if_index[sw_if_index0]; - if (PREDICT_TRUE (if_add_index0 != ~0)) - { - ip_interface_address_t *if_add = - pool_elt_at_index (lm->if_address_pool, if_add_index0); - ip4_address_t *if_ip = - ip_interface_address_get_address (lm, if_add); - out_ip0->src_address = *if_ip; - } - else - { - /* interface has no IP4 address - should not happen */ - next0 = IP4_ICMP_ERROR_NEXT_DROP; - error0 = ICMP4_ERROR_DROP; - } - out_ip0->checksum = ip4_header_checksum (out_ip0); - - /* Fill icmp header fields */ - icmp0->type = vnet_buffer (p0)->ip.icmp.type; - icmp0->code = vnet_buffer (p0)->ip.icmp.code; - *((u32 *) (icmp0 + 1)) = - clib_host_to_net_u32 (vnet_buffer (p0)->ip.icmp.data); - icmp0->checksum = 0; - sum = - ip_incremental_checksum (0, icmp0, - p0->current_length - - sizeof (ip4_header_t)); - icmp0->checksum = ~ip_csum_fold (sum); - - /* Update error status */ - if (error0 == ICMP4_ERROR_NONE) - error0 = icmp4_icmp_type_to_error (icmp0->type); - vlib_error_count (vm, node->node_index, error0, 1); - - /* Verify speculative enqueue, maybe switch current next frame */ - 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; -} - -/* *INDENT-OFF* */ -VLIB_REGISTER_NODE (ip4_icmp_error_node) = { - .function = ip4_icmp_error, - .name = "ip4-icmp-error", - .vector_size = sizeof (u32), - - .n_errors = ARRAY_LEN (icmp_error_strings), - .error_strings = icmp_error_strings, - - .n_next_nodes = IP4_ICMP_ERROR_N_NEXT, - .next_nodes = { - [IP4_ICMP_ERROR_NEXT_DROP] = "error-drop", - [IP4_ICMP_ERROR_NEXT_LOOKUP] = "ip4-lookup", - }, - - .format_trace = format_icmp_input_trace, -}; -/* *INDENT-ON* */ - - -static uword -unformat_icmp_type_and_code (unformat_input_t * input, va_list * args) -{ - icmp46_header_t *h = va_arg (*args, icmp46_header_t *); - icmp4_main_t *cm = &icmp4_main; - u32 i; - - if (unformat_user (input, unformat_vlib_number_by_name, - cm->type_and_code_by_name, &i)) - { - h->type = (i >> 8) & 0xff; - h->code = (i >> 0) & 0xff; - } - else if (unformat_user (input, unformat_vlib_number_by_name, - cm->type_by_name, &i)) - { - h->type = i; - h->code = 0; - } - else - return 0; - - return 1; -} - -static void -icmp4_pg_edit_function (pg_main_t * pg, - pg_stream_t * s, - pg_edit_group_t * g, u32 * packets, u32 n_packets) -{ - vlib_main_t *vm = vlib_get_main (); - u32 ip_offset, icmp_offset; - - icmp_offset = g->start_byte_offset; - ip_offset = (g - 1)->start_byte_offset; - - while (n_packets >= 1) - { - vlib_buffer_t *p0; - ip4_header_t *ip0; - icmp46_header_t *icmp0; - u32 len0; - - p0 = vlib_get_buffer (vm, packets[0]); - n_packets -= 1; - packets += 1; - - ASSERT (p0->current_data == 0); - ip0 = (void *) (p0->data + ip_offset); - icmp0 = (void *) (p0->data + icmp_offset); - len0 = clib_net_to_host_u16 (ip0->length) - ip4_header_bytes (ip0); - icmp0->checksum = - ~ip_csum_fold (ip_incremental_checksum (0, icmp0, len0)); - } -} - -typedef struct -{ - pg_edit_t type, code; - pg_edit_t checksum; -} pg_icmp46_header_t; - -always_inline void -pg_icmp_header_init (pg_icmp46_header_t * p) -{ - /* Initialize fields that are not bit fields in the IP header. */ -#define _(f) pg_edit_init (&p->f, icmp46_header_t, f); - _(type); - _(code); - _(checksum); -#undef _ -} - -static uword -unformat_pg_icmp_header (unformat_input_t * input, va_list * args) -{ - pg_stream_t *s = va_arg (*args, pg_stream_t *); - pg_icmp46_header_t *p; - u32 group_index; - - p = pg_create_edit_group (s, sizeof (p[0]), sizeof (icmp46_header_t), - &group_index); - pg_icmp_header_init (p); - - p->checksum.type = PG_EDIT_UNSPECIFIED; - - { - icmp46_header_t tmp; - - if (!unformat (input, "ICMP %U", unformat_icmp_type_and_code, &tmp)) - goto error; - - pg_edit_set_fixed (&p->type, tmp.type); - pg_edit_set_fixed (&p->code, tmp.code); - } - - /* Parse options. */ - while (1) - { - if (unformat (input, "checksum %U", - unformat_pg_edit, unformat_pg_number, &p->checksum)) - ; - - /* Can't parse input: try next protocol level. */ - else - break; - } - - if (!unformat_user (input, unformat_pg_payload, s)) - goto error; - - if (p->checksum.type == PG_EDIT_UNSPECIFIED) - { - pg_edit_group_t *g = pg_stream_get_group (s, group_index); - g->edit_function = icmp4_pg_edit_function; - g->edit_function_opaque = 0; - } - - return 1; - -error: - /* Free up any edits we may have added. */ - pg_free_edit_group (s); - return 0; -} - -void -ip4_icmp_register_type (vlib_main_t * vm, icmp4_type_t type, u32 node_index) -{ - icmp4_main_t *im = &icmp4_main; - - ASSERT ((int) type < ARRAY_LEN (im->ip4_input_next_index_by_type)); - im->ip4_input_next_index_by_type[type] - = vlib_node_add_next (vm, ip4_icmp_input_node.index, node_index); -} - -static clib_error_t * -icmp4_init (vlib_main_t * vm) -{ - ip_main_t *im = &ip_main; - ip_protocol_info_t *pi; - icmp4_main_t *cm = &icmp4_main; - clib_error_t *error; - - error = vlib_call_init_function (vm, ip_main_init); - - if (error) - return error; - - pi = ip_get_protocol_info (im, IP_PROTOCOL_ICMP); - pi->format_header = format_ip4_icmp_header; - pi->unformat_pg_edit = unformat_pg_icmp_header; - - cm->type_by_name = hash_create_string (0, sizeof (uword)); -#define _(n,t) hash_set_mem (cm->type_by_name, #t, (n)); - foreach_icmp4_type; -#undef _ - - cm->type_and_code_by_name = hash_create_string (0, sizeof (uword)); -#define _(a,n,t) hash_set_mem (cm->type_by_name, #t, (n) | (ICMP4_##a << 8)); - foreach_icmp4_code; -#undef _ - - memset (cm->ip4_input_next_index_by_type, - ICMP_INPUT_NEXT_ERROR, sizeof (cm->ip4_input_next_index_by_type)); - - ip4_icmp_register_type (vm, ICMP4_echo_request, - ip4_icmp_echo_request_node.index); - - return 0; -} - -VLIB_INIT_FUNCTION (icmp4_init); - -/* - * fd.io coding-style-patch-verification: ON - * - * Local Variables: - * eval: (c-set-style "gnu") - * End: - */ |