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/*
* Copyright (c) 2017-2019 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 <src/config.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <parc/assert/parc_Assert.h>
#include <parc/algol/parc_Memory.h>
#include <parc/algol/parc_Time.h>
#include <src/config/controlListRoutes.h>
#include <src/utils/commands.h>
#include <src/utils/utils.h>
static CommandReturn _controlListRoutes_Execute(CommandParser *parser,
CommandOps *ops,
PARCList *args);
static CommandReturn _controlListRoutes_HelpExecute(CommandParser *parser,
CommandOps *ops,
PARCList *args);
static const char *_commandListRoutes = "list routes";
static const char *_commandListRoutesHelp = "help list routes";
// ====================================================
CommandOps *controlListRoutes_Create(ControlState *state) {
return commandOps_Create(state, _commandListRoutes, NULL,
_controlListRoutes_Execute, commandOps_Destroy);
}
CommandOps *controlListRoutes_HelpCreate(ControlState *state) {
return commandOps_Create(state, _commandListRoutesHelp, NULL,
_controlListRoutes_HelpExecute, commandOps_Destroy);
}
// ====================================================
static CommandReturn _controlListRoutes_HelpExecute(CommandParser *parser,
CommandOps *ops,
PARCList *args) {
printf("command: list routes\n");
printf("\n");
printf(
"This command will fetch the prefix routing table. For each route, it "
"will list:\n");
printf(" iface: interface\n");
printf(
" protocol: the routing protocol, such as STATIC, CONNECTED, etc.\n");
printf(
" type: LMP or EXACT (longest matching prefix or exact match)\n");
printf(" cost: The route cost, lower being preferred\n");
printf(" next: List of next hops by interface id\n");
printf(" prefix: name prefix\n");
printf("\n");
return CommandReturn_Success;
}
static CommandReturn _controlListRoutes_Execute(CommandParser *parser,
CommandOps *ops,
PARCList *args) {
if (parcList_Size(args) != 2) {
_controlListRoutes_HelpExecute(parser, ops, args);
return CommandReturn_Failure;
}
ControlState *state = ops->closure;
// send message and receive response
struct iovec *response = utils_SendRequest(state, LIST_ROUTES, NULL, 0);
if (!response) { // get NULL pointer = FAILURE
return CommandReturn_Failure;
}
// Process/Print message
header_control_message *receivedHeader =
(header_control_message *)response[0].iov_base;
uint8_t *receivedPayload = (uint8_t *)response[1].iov_base;
// Allocate output to pass to the main function if the call is not interactive
char **commandOutputMain = NULL;
if (!controlState_IsInteractive(state) && receivedHeader->length > 0) {
commandOutputMain =
parcMemory_Allocate(sizeof(char *) * receivedHeader->length);
for (size_t j = 0; j < receivedHeader->length; j++) {
commandOutputMain[j] = parcMemory_Allocate(sizeof(char) * 128);
}
}
char *addrString = NULL;
in_port_t port = htons(1234); // this is a random port number that is ignored
if (receivedHeader->length > 0) {
printf("%6.6s %8.8s %70.70s %s\n", "iface", "cost", "prefix", "len");
} else {
printf(" --- No entry in the list \n");
}
for (int i = 0; i < receivedHeader->length; i++) {
list_routes_command *listRoutesCommand =
(list_routes_command *)(receivedPayload +
(i * sizeof(list_routes_command)));
addrString = utils_CommandAddressToString(
listRoutesCommand->addressType, &listRoutesCommand->address, &port);
PARCBufferComposer *composer = parcBufferComposer_Create();
parcBufferComposer_Format(
composer, "%6u %8u %70.70s %3d", listRoutesCommand->connid,
listRoutesCommand->cost, addrString, listRoutesCommand->len);
PARCBuffer *tempBuffer = parcBufferComposer_ProduceBuffer(composer);
char *result = parcBuffer_ToString(tempBuffer);
parcBuffer_Release(&tempBuffer);
if (!controlState_IsInteractive(state)) {
strcpy(commandOutputMain[i], result);
}
puts(result);
parcMemory_Deallocate((void **)&result);
parcBufferComposer_Release(&composer);
}
controlState_SetCommandOutput(state, commandOutputMain);
// DEALLOCATE
parcMemory_Deallocate((void **)&addrString);
parcMemory_Deallocate(&receivedHeader); // free response[0].iov_base
parcMemory_Deallocate(&receivedPayload); // free response[1].iov_base
parcMemory_Deallocate(&response); // free iovec pointer
return CommandReturn_Success;
}
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