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/*
* 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,
};
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