Miklos Tirpak
32ac2d92da
Silence the coverity test with setting the interface index in a variable before the boundary check. Type: fix Change-Id: I9bd6db08bfef93142581dada0b6a7d78b7de91e7 Signed-off-by: Miklos Tirpak <miklos.tirpak@gmail.com>
140 lines
3.5 KiB
C
140 lines
3.5 KiB
C
/*
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* mss_clamp_api.c - TCP MSS clamping plug-in
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*
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* Copyright (c) <current-year> <your-organization>
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <vnet/vnet.h>
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#include <vnet/plugin/plugin.h> /* VLIB_PLUGIN_REGISTER */
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#include <mss_clamp/mss_clamp.h>
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#include <mss_clamp/mss_clamp.api_enum.h>
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#include <mss_clamp/mss_clamp.api_types.h>
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#include <vlibapi/api.h>
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#include <vlibmemory/api.h>
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#include <vpp/app/version.h> /* VPP_BUILD_VER */
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#define REPLY_MSG_ID_BASE cm->msg_id_base
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#include <vlibapi/api_helper_macros.h>
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/* API message handler */
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static void
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vl_api_mss_clamp_enable_disable_t_handler (
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vl_api_mss_clamp_enable_disable_t *mp)
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{
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mssc_main_t *cm = &mssc_main;
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vl_api_mss_clamp_enable_disable_reply_t *rmp;
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int rv;
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u32 sw_if_index;
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sw_if_index = ntohl (mp->sw_if_index);
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VALIDATE_SW_IF_INDEX (mp);
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rv =
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mssc_enable_disable (sw_if_index, mp->ipv4_direction, mp->ipv6_direction,
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ntohs (mp->ipv4_mss), ntohs (mp->ipv6_mss));
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BAD_SW_IF_INDEX_LABEL;
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REPLY_MACRO (VL_API_MSS_CLAMP_ENABLE_DISABLE_REPLY);
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}
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static void
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send_mss_clamp_details (u32 sw_if_index, vl_api_registration_t *rp,
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u32 context)
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{
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mssc_main_t *cm = &mssc_main;
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vl_api_mss_clamp_details_t *rmp;
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u16 mss4, mss6;
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u8 dir4, dir6;
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int rv;
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mss4 = mss6 = 0;
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dir4 = dir6 = MSS_CLAMP_DIR_NONE;
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rv = mssc_get_mss (sw_if_index, &dir4, &dir6, &mss4, &mss6);
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if (rv == VNET_API_ERROR_FEATURE_DISABLED)
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return;
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REPLY_MACRO_DETAILS4 (VL_API_MSS_CLAMP_DETAILS, rp, context, ({
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rmp->sw_if_index = htonl (sw_if_index);
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rmp->ipv4_mss = htons (mss4);
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rmp->ipv6_mss = htons (mss6);
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rmp->ipv4_direction = dir4;
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rmp->ipv6_direction = dir6;
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}));
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}
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static void
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vl_api_mss_clamp_get_t_handler (vl_api_mss_clamp_get_t *mp)
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{
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mssc_main_t *cm = &mssc_main;
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vl_api_mss_clamp_get_reply_t *rmp;
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int rv = 0;
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u32 sw_if_index = ntohl (mp->sw_if_index);
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vl_api_registration_t *reg;
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reg = vl_api_client_index_to_registration (mp->client_index);
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if (!reg)
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return;
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if (sw_if_index == ~0)
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{
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if (vec_len (cm->dir_enabled4) == 0)
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{
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REPLY_MACRO2 (VL_API_MSS_CLAMP_GET_REPLY, ({ rmp->cursor = ~0; }));
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return;
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}
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REPLY_AND_DETAILS_VEC_MACRO (
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VL_API_MSS_CLAMP_GET_REPLY, cm->dir_enabled4, mp, rmp, rv,
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({ send_mss_clamp_details (cursor, reg, mp->context); }));
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}
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else
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{
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VALIDATE_SW_IF_INDEX (mp);
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send_mss_clamp_details (sw_if_index, reg, mp->context);
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BAD_SW_IF_INDEX_LABEL;
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REPLY_MACRO2 (VL_API_MSS_CLAMP_GET_REPLY, ({ rmp->cursor = ~0; }));
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}
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}
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/* API definitions */
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#include <vnet/format_fns.h>
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#include <mss_clamp/mss_clamp.api.c>
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/* Set up the API message handling tables */
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static clib_error_t *
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mssc_api_hookup (vlib_main_t *vm)
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{
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mssc_main_t *cm = &mssc_main;
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cm->msg_id_base = setup_message_id_table ();
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return 0;
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}
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VLIB_API_INIT_FUNCTION (mssc_api_hookup);
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VLIB_PLUGIN_REGISTER () = {
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.version = VPP_BUILD_VER,
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.description = "TCP MSS clamping plugin",
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};
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/*
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* fd.io coding-style-patch-verification: ON
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*
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* Local Variables:
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* eval: (c-set-style "gnu")
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* End:
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*/
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