diff options
Diffstat (limited to 'vnet/vnet/ip/ip6_format.c')
| -rw-r--r-- | vnet/vnet/ip/ip6_format.c | 383 |
1 files changed, 0 insertions, 383 deletions
diff --git a/vnet/vnet/ip/ip6_format.c b/vnet/vnet/ip/ip6_format.c deleted file mode 100644 index 56899b73d8b..00000000000 --- a/vnet/vnet/ip/ip6_format.c +++ /dev/null @@ -1,383 +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/ip6_format.c: ip6 formatting - * - * 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 <vnet/ip/ip.h> - -/* Format an IP6 address. */ -u8 * -format_ip6_address (u8 * s, va_list * args) -{ - ip6_address_t *a = va_arg (*args, ip6_address_t *); - u32 max_zero_run = 0, this_zero_run = 0; - int max_zero_run_index = -1, this_zero_run_index = 0; - int in_zero_run = 0, i; - int last_double_colon = 0; - - /* Ugh, this is a pain. Scan forward looking for runs of 0's */ - for (i = 0; i < ARRAY_LEN (a->as_u16); i++) - { - if (a->as_u16[i] == 0) - { - if (in_zero_run) - this_zero_run++; - else - { - in_zero_run = 1; - this_zero_run = 1; - this_zero_run_index = i; - } - } - else - { - if (in_zero_run) - { - /* offer to compress the biggest run of > 1 zero */ - if (this_zero_run > max_zero_run && this_zero_run > 1) - { - max_zero_run_index = this_zero_run_index; - max_zero_run = this_zero_run; - } - } - in_zero_run = 0; - this_zero_run = 0; - } - } - - if (in_zero_run) - { - if (this_zero_run > max_zero_run && this_zero_run > 1) - { - max_zero_run_index = this_zero_run_index; - max_zero_run = this_zero_run; - } - } - - for (i = 0; i < ARRAY_LEN (a->as_u16); i++) - { - if (i == max_zero_run_index) - { - s = format (s, "::"); - i += max_zero_run - 1; - last_double_colon = 1; - } - else - { - s = format (s, "%s%x", - (last_double_colon || i == 0) ? "" : ":", - clib_net_to_host_u16 (a->as_u16[i])); - last_double_colon = 0; - } - } - - return s; -} - -/* Format an IP6 route destination and length. */ -u8 * -format_ip6_address_and_length (u8 * s, va_list * args) -{ - ip6_address_t *a = va_arg (*args, ip6_address_t *); - u8 l = va_arg (*args, u32); - return format (s, "%U/%d", format_ip6_address, a, l); -} - -/* Parse an IP6 address. */ -uword -unformat_ip6_address (unformat_input_t * input, va_list * args) -{ - ip6_address_t *result = va_arg (*args, ip6_address_t *); - u16 hex_quads[8]; - uword hex_quad, n_hex_quads, hex_digit, n_hex_digits; - uword c, n_colon, double_colon_index; - - n_hex_quads = hex_quad = n_hex_digits = n_colon = 0; - double_colon_index = ARRAY_LEN (hex_quads); - while ((c = unformat_get_input (input)) != UNFORMAT_END_OF_INPUT) - { - hex_digit = 16; - if (c >= '0' && c <= '9') - hex_digit = c - '0'; - else if (c >= 'a' && c <= 'f') - hex_digit = c + 10 - 'a'; - else if (c >= 'A' && c <= 'F') - hex_digit = c + 10 - 'A'; - else if (c == ':' && n_colon < 2) - n_colon++; - else - { - unformat_put_input (input); - break; - } - - /* Too many hex quads. */ - if (n_hex_quads >= ARRAY_LEN (hex_quads)) - return 0; - - if (hex_digit < 16) - { - hex_quad = (hex_quad << 4) | hex_digit; - - /* Hex quad must fit in 16 bits. */ - if (n_hex_digits >= 4) - return 0; - - n_colon = 0; - n_hex_digits++; - } - - /* Save position of :: */ - if (n_colon == 2) - { - /* More than one :: ? */ - if (double_colon_index < ARRAY_LEN (hex_quads)) - return 0; - double_colon_index = n_hex_quads; - } - - if (n_colon > 0 && n_hex_digits > 0) - { - hex_quads[n_hex_quads++] = hex_quad; - hex_quad = 0; - n_hex_digits = 0; - } - } - - if (n_hex_digits > 0) - hex_quads[n_hex_quads++] = hex_quad; - - { - word i; - - /* Expand :: to appropriate number of zero hex quads. */ - if (double_colon_index < ARRAY_LEN (hex_quads)) - { - word n_zero = ARRAY_LEN (hex_quads) - n_hex_quads; - - for (i = n_hex_quads - 1; i >= (signed) double_colon_index; i--) - hex_quads[n_zero + i] = hex_quads[i]; - - for (i = 0; i < n_zero; i++) - { - ASSERT ((double_colon_index + i) < ARRAY_LEN (hex_quads)); - hex_quads[double_colon_index + i] = 0; - } - - n_hex_quads = ARRAY_LEN (hex_quads); - } - - /* Too few hex quads given. */ - if (n_hex_quads < ARRAY_LEN (hex_quads)) - return 0; - - for (i = 0; i < ARRAY_LEN (hex_quads); i++) - result->as_u16[i] = clib_host_to_net_u16 (hex_quads[i]); - - return 1; - } -} - -/* Format an IP6 header. */ -u8 * -format_ip6_header (u8 * s, va_list * args) -{ - ip6_header_t *ip = va_arg (*args, ip6_header_t *); - u32 max_header_bytes = va_arg (*args, u32); - u32 i, ip_version, traffic_class, flow_label; - uword indent; - - /* Nothing to do. */ - if (max_header_bytes < sizeof (ip[0])) - return format (s, "IP header truncated"); - - indent = format_get_indent (s); - indent += 2; - - s = format (s, "%U: %U -> %U", - format_ip_protocol, ip->protocol, - format_ip6_address, &ip->src_address, - format_ip6_address, &ip->dst_address); - - i = clib_net_to_host_u32 (ip->ip_version_traffic_class_and_flow_label); - ip_version = (i >> 28); - traffic_class = (i >> 20) & 0xff; - flow_label = i & pow2_mask (20); - - if (ip_version != 6) - s = format (s, "\n%Uversion %d", format_white_space, indent, ip_version); - - s = - format (s, - "\n%Utos 0x%02x, flow label 0x%x, hop limit %d, payload length %d", - format_white_space, indent, traffic_class, flow_label, - ip->hop_limit, clib_net_to_host_u16 (ip->payload_length)); - - /* Recurse into next protocol layer. */ - if (max_header_bytes != 0 && sizeof (ip[0]) < max_header_bytes) - { - ip_main_t *im = &ip_main; - ip_protocol_info_t *pi = ip_get_protocol_info (im, ip->protocol); - - if (pi && pi->format_header) - s = format (s, "\n%U%U", - format_white_space, indent - 2, pi->format_header, - /* next protocol header */ (void *) (ip + 1), - max_header_bytes - sizeof (ip[0])); - } - - return s; -} - -/* Parse an IP6 header. */ -uword -unformat_ip6_header (unformat_input_t * input, va_list * args) -{ - u8 **result = va_arg (*args, u8 **); - ip6_header_t *ip; - int old_length; - - /* Allocate space for IP header. */ - { - void *p; - - old_length = vec_len (*result); - vec_add2 (*result, p, sizeof (ip[0])); - ip = p; - } - - memset (ip, 0, sizeof (ip[0])); - ip->ip_version_traffic_class_and_flow_label = - clib_host_to_net_u32 (6 << 28); - - if (!unformat (input, "%U: %U -> %U", - unformat_ip_protocol, &ip->protocol, - unformat_ip6_address, &ip->src_address, - unformat_ip6_address, &ip->dst_address)) - return 0; - - /* Parse options. */ - while (1) - { - int i; - - if (unformat (input, "tos %U", unformat_vlib_number, &i)) - ip->ip_version_traffic_class_and_flow_label |= - clib_host_to_net_u32 ((i & 0xff) << 20); - - else if (unformat (input, "hop-limit %U", unformat_vlib_number, &i)) - ip->hop_limit = i; - - /* Can't parse input: try next protocol level. */ - else - break; - } - - /* Recurse into next protocol layer. */ - { - ip_main_t *im = &ip_main; - ip_protocol_info_t *pi = ip_get_protocol_info (im, ip->protocol); - - if (pi && pi->unformat_header) - { - if (!unformat_user (input, pi->unformat_header, result)) - return 0; - - /* Result may have moved. */ - ip = (void *) *result + old_length; - } - } - - ip->payload_length = - clib_host_to_net_u16 (vec_len (*result) - (old_length + sizeof (ip[0]))); - - return 1; -} - -/* Parse an IP46 address. */ -uword -unformat_ip46_address (unformat_input_t * input, va_list * args) -{ - ip46_address_t *ip46 = va_arg (*args, ip46_address_t *); - ip46_type_t type = va_arg (*args, ip46_type_t); - if ((type != IP46_TYPE_IP6) && - unformat (input, "%U", unformat_ip4_address, &ip46->ip4)) - { - ip46_address_mask_ip4 (ip46); - return 1; - } - else if ((type != IP46_TYPE_IP4) && - unformat (input, "%U", unformat_ip6_address, &ip46->ip6)) - { - return 1; - } - return 0; -} - -/* Format an IP46 address. */ -u8 * -format_ip46_address (u8 * s, va_list * args) -{ - ip46_address_t *ip46 = va_arg (*args, ip46_address_t *); - ip46_type_t type = va_arg (*args, ip46_type_t); - int is_ip4 = 1; - - switch (type) - { - case IP46_TYPE_ANY: - is_ip4 = ip46_address_is_ip4 (ip46); - break; - case IP46_TYPE_IP4: - is_ip4 = 1; - break; - case IP46_TYPE_IP6: - is_ip4 = 0; - break; - } - - return is_ip4 ? - format (s, "%U", format_ip4_address, &ip46->ip4) : - format (s, "%U", format_ip6_address, &ip46->ip6); -} - -/* - * fd.io coding-style-patch-verification: ON - * - * Local Variables: - * eval: (c-set-style "gnu") - * End: - */ |