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/*
* 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_MIN_PDU_SIZE 0
#define DEFAULT_MAX_PDU_SIZE 9000
#define DEFAULT_DDNS 0
#define DEFAULT_ADDR_AUTH FLAT_RANDOM
#define ADDR_AUTH_FLAT "flat"
static void usage(void)
{
/* 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 <add time to live value in the PCI>]\n"
" [chk <add 32-bit checksum in the PCI>]\n"
" [min_pdu <minimum PDU size> (default: %d)]\n"
" [max_pdu <maximum PDU size> (default: %d)]\n"
" [addr_auth <address policy> (default: %s)]\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_MIN_PDU_SIZE, DEFAULT_MAX_PDU_SIZE,
ADDR_AUTH_FLAT, DEFAULT_DDNS);
}
int do_bootstrap_ipcp(int argc, char ** argv)
{
char * name = NULL;
pid_t api;
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;
bool has_ttl = false;
bool has_chk = false;
uint32_t min_pdu_size = DEFAULT_MIN_PDU_SIZE;
uint32_t max_pdu_size = DEFAULT_MAX_PDU_SIZE;
enum pol_addr_auth addr_auth_type = DEFAULT_ADDR_AUTH;
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 = NULL;
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) {
has_ttl = true;
argc++;
argv--;
} else if (matches(*argv, "chk") == 0) {
has_chk = true;
argc++;
argv--;
} 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 if (matches(*argv, "addr_auth") == 0) {
if (strcmp(ADDR_AUTH_FLAT, *(argv + 1)) == 0)
addr_auth_type = FLAT_RANDOM;
} 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.has_ttl = has_ttl;
conf.has_chk = has_chk;
conf.min_pdu_size = min_pdu_size;
conf.max_pdu_size = max_pdu_size;
conf.addr_auth_type = addr_auth_type;
} 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) {
api = irm_create_ipcp(name, conf.type);
if (api == 0)
return -1;
if (conf.type == IPCP_NORMAL)
irm_bind_api(api, name);
len = irm_list_ipcps(name, &apis);
}
for (i = 0; i < len; i++)
if (irm_bootstrap_ipcp(apis[i], &conf))
return -1;
if (apis != NULL)
free(apis);
return 0;
}
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