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/* Hey Emacs use -*- mode: C -*- */
/*
* Copyright (c) 2016 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.
*/
option version = "1.0.0";
import "vnet/interface_types.api";
/** \brief TCP MSS Clamping direction flag
*/
enumflag mss_clamp_dir : u8 {
MSS_CLAMP_DIR_NONE = 0x0,
MSS_CLAMP_DIR_RX = 0x1,
MSS_CLAMP_DIR_TX = 0x2,
};
/** \brief Enable/Disable TCP MSS Clamping feature on an interface
@param client_index - opaque cookie to identify the sender
@param context - sender context, to match reply w/ request
@param sw_if_index - interface index on which clamping will be applied
@param ipv4_mss - Maximum Segment Size for IPv4/TCP
@param ipv6_mss - Maximum Segment Size for IPv6/TCP
@param ipv4_direction - Direction clamping is enabled on (IPv4/TCP)
@param ipv6_direction - Direction clamping is enabled on (IPv6/TCP)
*/
autoreply define mss_clamp_enable_disable {
u32 client_index;
u32 context;
vl_api_interface_index_t sw_if_index;
u16 ipv4_mss;
u16 ipv6_mss;
vl_api_mss_clamp_dir_t ipv4_direction;
vl_api_mss_clamp_dir_t ipv6_direction;
};
/** \brief Get the list of configured mss values
@param client_index - opaque cookie to identify the sender
*/
service {
rpc mss_clamp_get returns mss_clamp_get_reply
stream mss_clamp_details;
};
/** \brief Get the TCP MSS Clamping feature settings
@param client_index - opaque cookie to identify the sender
@param context - sender context, to match reply w/ request
@param cursor - cursor to continue when there is more to read
@param sw_if_index - interface index to filter the result,
~0 means no filter
*/
define mss_clamp_get {
u32 client_index;
u32 context;
u32 cursor;
vl_api_interface_index_t sw_if_index;
};
/** \brief Reply for get TCP MSS Clamping feature settings request
@param context - returned sender context, to match reply w/ request
@param retval - return code
@param cursor - cursor to continue when there is more to read
*/
define mss_clamp_get_reply {
u32 context;
i32 retval;
u32 cursor;
};
/** \brief Configured MSS values on an interface
@param context - returned sender context, to match reply w/ request
@param sw_if_index - interface index on which clamping is applied
@param ipv4_mss - Maximum Segment Size for IPv4/TCP
@param ipv6_mss - Maximum Segment Size for IPv6/TCP
@param ipv4_direction - Direction clamping is enabled on (IPv4/TCP)
@param ipv6_direction - Direction clamping is enabled on (IPv6/TCP)
*/
define mss_clamp_details {
u32 context;
vl_api_interface_index_t sw_if_index;
u16 ipv4_mss;
u16 ipv6_mss;
vl_api_mss_clamp_dir_t ipv4_direction;
vl_api_mss_clamp_dir_t ipv6_direction;
};
counters mss_clamp {
clamped {
severity info;
type counter64;
units "packets";
description "packets clamped";
};
};
paths {
"/err/tcp-mss-clamping-ip4-in" "mss-clamp";
"/err/tcp-mss-clamping-ip4-out" "mss-clamp";
"/err/tcp-mss-clamping-ip6-in" "mss-clamp";
"/err/tcp-mss-clamping-ip6-out" "mss-clamp";
};
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