diff options
Diffstat (limited to 'src/vnet/udp/udp_decap.c')
| -rw-r--r-- | src/vnet/udp/udp_decap.c | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/src/vnet/udp/udp_decap.c b/src/vnet/udp/udp_decap.c new file mode 100644 index 00000000000..7337ac17ee9 --- /dev/null +++ b/src/vnet/udp/udp_decap.c @@ -0,0 +1,106 @@ +/* + * Copyright (c) 2021 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 <vnet/udp/udp.h> + +uword +unformat_next_node (unformat_input_t *input, va_list *args) +{ + vlib_main_t *vm = va_arg (*args, vlib_main_t *); + u32 *node_index = va_arg (*args, u32 *); + if (unformat (input, "mpls")) + *node_index = vlib_get_node_by_name (vm, (u8 *) "mpls-input")->index; + else if (unformat (input, "ip4")) + *node_index = vlib_get_node_by_name (vm, (u8 *) "ip4-input")->index; + else if (unformat (input, "ip6")) + *node_index = vlib_get_node_by_name (vm, (u8 *) "ip6-input")->index; + else + return 0; + return 1; +} + +static clib_error_t * +udp_decap_cli (vlib_main_t *vm, unformat_input_t *input, + vlib_cli_command_t *cmd_arg) +{ + unformat_input_t _line_input, *line_input = &_line_input; + clib_error_t *error = NULL; + u8 is_add = 1, is_ip4 = 1; + int i = 0; + u16 port = 0; + u32 node_index = ~0; + + if (!unformat_user (input, unformat_line_input, line_input)) + return 0; + + while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (line_input, "add")) + is_add = 1; + else if (unformat (line_input, "del")) + is_add = 0; + else if (unformat (line_input, "ipv4")) + is_ip4 = 1; + else if (unformat (line_input, "ipv6")) + is_ip4 = 0; + else if (unformat (line_input, "%d", &i)) + port = i; + else if (unformat (line_input, "next-proto %U", unformat_next_node, vm, + &node_index)) + ; + else + { + error = clib_error_return (0, "parse error: '%U'", + format_unformat_error, line_input); + goto done; + } + } + if (port == 0) + { + error = clib_error_return (0, "missing port"); + goto done; + } + if (is_add && node_index == ~0) + { + error = clib_error_return (0, "missing protocol"); + goto done; + } + if (is_add) + udp_register_dst_port (vm, port, node_index, is_ip4); + else + udp_unregister_dst_port (vm, port, is_ip4); + +done: + unformat_free (line_input); + return error; +} + +/*? + * Register a port to decapsulate incoming UDP encapsulated packets. + * + * @cliexpar + * @clistart + * udp decap add ipv4 1234 next-proto mpls + * @cliend + * @cliexcmd{udp decap [add|del] [ipv4|ipv6] <dst-port> next-proto +<inner-protocol>} +?*/ + +VLIB_CLI_COMMAND (udp_decap_add_command, static) = { + .path = "udp decap", + .short_help = + "udp decap [add|del] [ipv4|ipv6] <dst-port> next-proto <inner-protocol>", + .function = udp_decap_cli, +};
\ No newline at end of file |