diff options
Diffstat (limited to 'hicn-light/src/hicn/config/controlSetStrategy.c')
| -rw-r--r-- | hicn-light/src/hicn/config/controlSetStrategy.c | 75 |
1 files changed, 47 insertions, 28 deletions
diff --git a/hicn-light/src/hicn/config/controlSetStrategy.c b/hicn-light/src/hicn/config/controlSetStrategy.c index 10fec964b..3229c1864 100644 --- a/hicn-light/src/hicn/config/controlSetStrategy.c +++ b/hicn-light/src/hicn/config/controlSetStrategy.c @@ -34,10 +34,14 @@ static CommandReturn _controlSetStrategy_Execute(CommandParser *parser, CommandOps *ops, - PARCList *args); + PARCList *args, + char *output, + size_t output_size); static CommandReturn _controlSetStrategy_HelpExecute(CommandParser *parser, CommandOps *ops, - PARCList *args); + PARCList *args, + char *output, + size_t output_size); static const char *_commandSetStrategy = "set strategy"; static const char *_commandSetStrategyHelp = "help set strategy"; @@ -85,7 +89,11 @@ static void _getAddressAndLen(const char * prefixStr, char *addr, uint32_t *len) } static bool _checkAndSetIp(set_strategy_command * setStrategyCommand, - int index, char * addr, uint32_t len){ + int index, + char * addr, + uint32_t len, + char *output, + size_t output_size){ // check and set IP address int res; if(index == -1) @@ -96,10 +104,10 @@ static bool _checkAndSetIp(set_strategy_command * setStrategyCommand, if(res == 1) { if (len == UINT32_MAX) { - printf("Netmask not specified: set to 32 by default\n"); + snprintf(output, output_size, "Netmask not specified: set to 32 by default\n"); len = 32; } else if (len > 32) { - printf("ERROR: exceeded INET mask length, max=32\n"); + snprintf(output, output_size, "ERROR: exceeded INET mask length, max=32\n"); return false; } if(index == -1) @@ -118,10 +126,10 @@ static bool _checkAndSetIp(set_strategy_command * setStrategyCommand, if(res == 1) { if (len == UINT32_MAX) { - printf("Netmask not specified: set to 128 by default\n"); + snprintf(output, output_size, "Netmask not specified: set to 128 by default\n"); len = 128; } else if (len > 128) { - printf("ERROR: exceeded INET6 mask length, max=128\n"); + snprintf(output, output_size, "ERROR: exceeded INET6 mask length, max=128\n"); return false; } @@ -131,7 +139,8 @@ static bool _checkAndSetIp(set_strategy_command * setStrategyCommand, setStrategyCommand->addresses_type[index] = ADDR_INET6; } else { - printf("Error: %s is not a valid network address \n", addr); + snprintf(output, output_size, "Error: %s is not a valid network address \n", addr); + return false; } } @@ -140,36 +149,43 @@ static bool _checkAndSetIp(set_strategy_command * setStrategyCommand, static CommandReturn _controlSetStrategy_HelpExecute(CommandParser *parser, CommandOps *ops, - PARCList *args) { - printf("set strategy <prefix> <strategy> "); - printf("[related_prefix1 related_preifx2 ...]\n"); - printf("prefix: ipv4/ipv6 address (ex: 1234::/64)\n"); - printf("strategy: strategy identifier\n"); - printf("optinal: list of related prefixes (max %u)\n", - MAX_FWD_STRATEGY_RELATED_PREFIXES); - printf("available strategies:\n"); - printf(" random\n"); - printf(" loadbalancer\n"); - printf(" low_latency\n"); - printf("\n"); + 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) { + 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); + _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); + _controlSetStrategy_HelpExecute(parser, ops, args, output, output_size); return CommandReturn_Failure; } @@ -182,7 +198,7 @@ static CommandReturn _controlSetStrategy_Execute(CommandParser *parser, set_strategy_command *setStrategyCommand = parcMemory_AllocateAndClear(sizeof(set_strategy_command)); - bool success = _checkAndSetIp(setStrategyCommand, -1, addr, len); + bool success = _checkAndSetIp(setStrategyCommand, -1, addr, len, output, output_size); if(!success){ parcMemory_Deallocate(&setStrategyCommand); free(addr); @@ -193,9 +209,11 @@ static CommandReturn _controlSetStrategy_Execute(CommandParser *parser, // check valid strategy strategy_type strategy; if ((strategy = _validStrategy(strategyStr)) == LAST_STRATEGY_VALUE) { - printf("Error: invalid strategy \n"); + 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); + _controlSetStrategy_HelpExecute(parser, ops, args, output + output_offset, output_size - output_offset); free(addr); return CommandReturn_Failure; } @@ -205,7 +223,7 @@ static CommandReturn _controlSetStrategy_Execute(CommandParser *parser, // 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 @@ -217,12 +235,13 @@ static CommandReturn _controlSetStrategy_Execute(CommandParser *parser, uint32_t rel_len = UINT32_MAX; _getAddressAndLen(str, rel_addr, &rel_len); bool success = _checkAndSetIp(setStrategyCommand, addr_index, - rel_addr, rel_len); + 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++; |