/* * Ouroboros - Copyright (C) 2016 * * Bootstrap IPC Processes * * Sander Vrijders <sander.vrijders@intec.ugent.be> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include <stdio.h> #include <stdlib.h> #include <string.h> #include <arpa/inet.h> #ifdef __FreeBSD__ #include <sys/socket.h> #endif #include <ouroboros/irm.h> #include <ouroboros/irm_config.h> #include "irm_ops.h" #include "irm_utils.h" #define NORMAL "normal" #define SHIM_UDP "shim-udp" #define SHIM_ETH_LLC "shim-eth-llc" #define LOCAL "local" #define DEFAULT_ADDR_SIZE 4 #define DEFAULT_CEP_ID_SIZE 2 #define DEFAULT_PDU_LEN_SIZE 2 #define DEFAULT_SEQ_NO_SIZE 4 #define DEFAULT_TTL_SIZE 1 #define DEFAULT_CHK_SIZE 2 #define DEFAULT_MIN_PDU_SIZE 0 #define DEFAULT_MAX_PDU_SIZE 9000 #define DEFAULT_DDNS 0 static void usage() { /* FIXME: Add dif_config stuff */ printf("Usage: irm ipcp bootstrap\n" " name <ipcp name>\n" " dif <DIF name>\n" " type [TYPE]\n\n" "where TYPE = {" NORMAL " " LOCAL " " SHIM_UDP " " SHIM_ETH_LLC"}\n\n" "if TYPE == " NORMAL "\n" " [addr <address size> (default: %d)]\n" " [cep_id <CEP-id size> (default: %d)]\n" " [pdu_len <PDU length size> (default: %d)]\n" " [seqno <sequence number size> (default: %d)]\n" " [ttl <time to live size> (default: %d)]\n" " [chk <checksum size> (default: %d)]\n" " [min_pdu <minimum PDU size> (default: %d)]\n" " [max_pdu <maximum PDU size> (default: %d)]\n" "if TYPE == " SHIM_UDP "\n" " ip <IP address in dotted notation>\n" " [dns <DDNS IP address in dotted notation>" " (default = none: %d)]\n" "if TYPE == " SHIM_ETH_LLC "\n" " if_name <interface name>\n", DEFAULT_ADDR_SIZE, DEFAULT_CEP_ID_SIZE, DEFAULT_PDU_LEN_SIZE, DEFAULT_SEQ_NO_SIZE, DEFAULT_TTL_SIZE, DEFAULT_CHK_SIZE, DEFAULT_MIN_PDU_SIZE, DEFAULT_MAX_PDU_SIZE, DEFAULT_DDNS); } int do_bootstrap_ipcp(int argc, char ** argv) { char * name = NULL; struct dif_config conf; uint8_t addr_size = DEFAULT_ADDR_SIZE; uint8_t cep_id_size = DEFAULT_CEP_ID_SIZE; uint8_t pdu_length_size = DEFAULT_PDU_LEN_SIZE; uint8_t seqno_size = DEFAULT_SEQ_NO_SIZE; uint8_t ttl_size = DEFAULT_TTL_SIZE; uint8_t chk_size = DEFAULT_CHK_SIZE; uint32_t min_pdu_size = DEFAULT_MIN_PDU_SIZE; uint32_t max_pdu_size = DEFAULT_MAX_PDU_SIZE; uint32_t ip_addr = 0; uint32_t dns_addr = DEFAULT_DDNS; char * ipcp_type = NULL; char * dif_name = NULL; char * if_name = NULL; pid_t * apis; ssize_t len = 0; int i = 0; while (argc > 0) { if (matches(*argv, "type") == 0) { ipcp_type = *(argv + 1); } else if (matches(*argv, "dif") == 0) { dif_name = *(argv + 1); } else if (matches(*argv, "name") == 0) { name = *(argv + 1); } else if (matches(*argv, "ip") == 0) { if (inet_pton (AF_INET, *(argv + 1), &ip_addr) != 1) { usage(); return -1; } } else if (matches(*argv, "dns") == 0) { if (inet_pton (AF_INET, *(argv + 1), &dns_addr) != 1) { usage(); return -1; } } else if (matches(*argv, "if_name") == 0) { if_name = *(argv + 1); } else if (matches(*argv, "addr") == 0) { addr_size = atoi(*(argv + 1)); } else if (matches(*argv, "cep_id") == 0) { cep_id_size = atoi(*(argv + 1)); } else if (matches(*argv, "pdu_len") == 0) { pdu_length_size = atoi(*(argv + 1)); } else if (matches(*argv, "seqno") == 0) { seqno_size = atoi(*(argv + 1)); } else if (matches(*argv, "ttl") == 0) { ttl_size = atoi(*(argv + 1)); } else if (matches(*argv, "chk") == 0) { chk_size = atoi(*(argv + 1)); } else if (matches(*argv, "min_pdu") == 0) { min_pdu_size = atoi(*(argv + 1)); } else if (matches(*argv, "max_pdu") == 0) { max_pdu_size = atoi(*(argv + 1)); } else { printf("\"%s\" is unknown, try \"irm " "ipcp bootstrap\".\n", *argv); return -1; } argc -= 2; argv += 2; } if (name == NULL || dif_name == NULL || ipcp_type == NULL) { usage(); return -1; } conf.dif_name = dif_name; if (strcmp(ipcp_type, NORMAL) == 0) { conf.type = IPCP_NORMAL; conf.addr_size = addr_size; conf.cep_id_size = cep_id_size; conf.pdu_length_size = pdu_length_size; conf.seqno_size = seqno_size; conf.ttl_size = ttl_size; conf.chk_size = chk_size; conf.min_pdu_size = min_pdu_size; conf.max_pdu_size = max_pdu_size; } else if (strcmp(ipcp_type, SHIM_UDP) == 0) { conf.type = IPCP_SHIM_UDP; if (ip_addr == 0) { usage(); return -1; } conf.ip_addr = ip_addr; conf.dns_addr = dns_addr; } else if (strcmp(ipcp_type, LOCAL) == 0) { conf.type = IPCP_LOCAL; } else if (strcmp(ipcp_type, SHIM_ETH_LLC) == 0) { conf.type = IPCP_SHIM_ETH_LLC; if (if_name == NULL) { usage(); return -1; } conf.if_name = if_name; } else { usage(); return -1; } len = irm_list_ipcps(name, &apis); if (len <= 0) { if (!irm_create_ipcp(name, conf.type)) return -1; len = irm_list_ipcps(name, &apis); } for (i = 0; i < len; i++) if (irm_bootstrap_ipcp(apis[i], &conf)) return -1; free(apis); return 0; }