diff options
Diffstat (limited to 'hicn-light/src/hicn/config/controlSetStrategy.c')
-rw-r--r-- | hicn-light/src/hicn/config/controlSetStrategy.c | 264 |
1 files changed, 0 insertions, 264 deletions
diff --git a/hicn-light/src/hicn/config/controlSetStrategy.c b/hicn-light/src/hicn/config/controlSetStrategy.c deleted file mode 100644 index 3229c1864..000000000 --- a/hicn-light/src/hicn/config/controlSetStrategy.c +++ /dev/null @@ -1,264 +0,0 @@ -/* - * 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 <hicn/hicn-light/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_Network.h> - -#include <hicn/config/controlSetDebug.h> -#include <hicn/core/dispatcher.h> -#include <hicn/core/forwarder.h> - -#include <hicn/utils/commands.h> -#include <hicn/utils/utils.h> - -static CommandReturn _controlSetStrategy_Execute(CommandParser *parser, - CommandOps *ops, - PARCList *args, - char *output, - size_t output_size); -static CommandReturn _controlSetStrategy_HelpExecute(CommandParser *parser, - CommandOps *ops, - PARCList *args, - char *output, - size_t output_size); - -static const char *_commandSetStrategy = "set strategy"; -static const char *_commandSetStrategyHelp = "help set strategy"; - -static const char *_commandSetStrategyOptions[LAST_STRATEGY_VALUE] = { - "loadbalancer", - "random", - "low_latency", -}; - -// ==================================================== - -CommandOps *controlSetStrategy_Create(ControlState *state) { - return commandOps_Create(state, _commandSetStrategy, NULL, - _controlSetStrategy_Execute, commandOps_Destroy); -} - -CommandOps *controlSetStrategy_HelpCreate(ControlState *state) { - return commandOps_Create(state, _commandSetStrategyHelp, NULL, - _controlSetStrategy_HelpExecute, commandOps_Destroy); -} - -// ==================================================== - -strategy_type _validStrategy(const char *strategy) { - strategy_type validStrategy = LAST_STRATEGY_VALUE; - - for (int i = 0; i < LAST_STRATEGY_VALUE; i++) { - if (strcmp(_commandSetStrategyOptions[i], strategy) == 0) { - validStrategy = i; - break; - } - } - return validStrategy; -} - -static void _getAddressAndLen(const char * prefixStr, char *addr, uint32_t *len){ - char *slash; - strcpy(addr, prefixStr); - slash = strrchr(addr, '/'); - if (slash != NULL) { - *len = atoi(slash + 1); - *slash = '\0'; - } -} - -static bool _checkAndSetIp(set_strategy_command * setStrategyCommand, - int index, - char * addr, - uint32_t len, - char *output, - size_t output_size){ - // check and set IP address - int res; - if(index == -1) - res = inet_pton(AF_INET, addr, &setStrategyCommand->address.v4.as_u32); - else - res = inet_pton(AF_INET, addr, - &setStrategyCommand->addresses[index].v4.as_u32); - - if(res == 1) { - if (len == UINT32_MAX) { - snprintf(output, output_size, "Netmask not specified: set to 32 by default\n"); - len = 32; - } else if (len > 32) { - snprintf(output, output_size, "ERROR: exceeded INET mask length, max=32\n"); - return false; - } - if(index == -1) - setStrategyCommand->addressType = ADDR_INET; - else - setStrategyCommand->addresses_type[index] = ADDR_INET; - - } else { - - if(index == -1) - res = inet_pton(AF_INET6, addr, - &setStrategyCommand->address.v6.as_in6addr); - else - res = inet_pton(AF_INET6, addr, - &setStrategyCommand->addresses[index].v6.as_in6addr); - - if(res == 1) { - if (len == UINT32_MAX) { - snprintf(output, output_size, "Netmask not specified: set to 128 by default\n"); - len = 128; - } else if (len > 128) { - snprintf(output, output_size, "ERROR: exceeded INET6 mask length, max=128\n"); - return false; - } - - if(index == -1) - setStrategyCommand->addressType = ADDR_INET6; - else - setStrategyCommand->addresses_type[index] = ADDR_INET6; - - } else { - snprintf(output, output_size, "Error: %s is not a valid network address \n", addr); - - return false; - } - } - return true; -} - -static CommandReturn _controlSetStrategy_HelpExecute(CommandParser *parser, - CommandOps *ops, - PARCList *args, - char *output, - size_t output_size) { - snprintf(output, output_size, - "set strategy <prefix> <strategy> " - "[related_prefix1 related_preifx2 ...]\n" - "prefix: ipv4/ipv6 address (ex: 1234::/64)\n" - "strategy: strategy identifier\n" - "optinal: list of related prefixes (max %u)\n" - "available strategies:\n" - " random\n" - " loadbalancer\n" - " low_latency\n\n", - MAX_FWD_STRATEGY_RELATED_PREFIXES); - return CommandReturn_Success; -} - - -static CommandReturn _controlSetStrategy_Execute(CommandParser *parser, - CommandOps *ops, - PARCList *args, - char *output, - size_t output_size) { - if (output) { - output[0] = '\0'; - } - ControlState *state = ops->closure; - - if (parcList_Size(args) < 4 || - parcList_Size(args) > (4 + MAX_FWD_STRATEGY_RELATED_PREFIXES)) { - _controlSetStrategy_HelpExecute(parser, ops, args, output, output_size); - return CommandReturn_Failure; - } - - if (((strcmp(parcList_GetAtIndex(args, 0), "set") != 0) || - (strcmp(parcList_GetAtIndex(args, 1), "strategy") != 0))) { - _controlSetStrategy_HelpExecute(parser, ops, args, output, output_size); - return CommandReturn_Failure; - } - - const char *prefixStr = parcList_GetAtIndex(args, 2); - char *addr = (char *)malloc(sizeof(char) * (strlen(prefixStr) + 1)); - uint32_t len = UINT32_MAX; - _getAddressAndLen(prefixStr, addr, &len); - - // allocate command payload - set_strategy_command *setStrategyCommand = - parcMemory_AllocateAndClear(sizeof(set_strategy_command)); - - bool success = _checkAndSetIp(setStrategyCommand, -1, addr, len, output, output_size); - if(!success){ - parcMemory_Deallocate(&setStrategyCommand); - free(addr); - return CommandReturn_Failure; - } - - const char *strategyStr = parcList_GetAtIndex(args, 3); - // check valid strategy - strategy_type strategy; - if ((strategy = _validStrategy(strategyStr)) == LAST_STRATEGY_VALUE) { - size_t output_offset = strlen(output); - output_offset += snprintf(output + output_offset, output_size - output_offset, "Error: invalid strategy \n"); - - parcMemory_Deallocate(&setStrategyCommand); - _controlSetStrategy_HelpExecute(parser, ops, args, output + output_offset, output_size - output_offset); - free(addr); - return CommandReturn_Failure; - } - - free(addr); - - // Fill remaining payload fields - setStrategyCommand->len = len; - setStrategyCommand->strategyType = strategy; - size_t output_offset = strlen(output); - //check additional prefixes - if(parcList_Size(args) > 4){ - uint32_t index = 4; //first realted prefix - uint32_t addr_index = 0; - setStrategyCommand->related_prefixes = parcList_Size(args) - 4; - while(index < parcList_Size(args)){ - const char *str = parcList_GetAtIndex(args, index); - char *rel_addr = (char *)malloc(sizeof(char) * (strlen(str) + 1)); - uint32_t rel_len = UINT32_MAX; - _getAddressAndLen(str, rel_addr, &rel_len); - bool success = _checkAndSetIp(setStrategyCommand, addr_index, - rel_addr, rel_len, output + output_offset, output_size - output_offset); - if(!success){ - parcMemory_Deallocate(&setStrategyCommand); - free(rel_addr); - return CommandReturn_Failure; - } - output_offset = strlen(output); - setStrategyCommand->lens[addr_index] = rel_len; - free(rel_addr); - index++; - addr_index++; - } - }else{ - setStrategyCommand->related_prefixes = 0; - } - - // send message and receive response - struct iovec *response = utils_SendRequest( - state, SET_STRATEGY, setStrategyCommand, sizeof(set_strategy_command)); - - if (!response) { // get NULL pointer - return CommandReturn_Failure; - } - - parcMemory_Deallocate(&response); // free iovec pointer - return CommandReturn_Success; -} |