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/*
* Ouroboros - Copyright (C) 2016 - 2023
*
* Bootstrap IPC Processes
*
* Dimitri Staessens <dimitri@ouroboros.rocks>
* Sander Vrijders <sander@ouroboros.rocks>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
*
* 3. Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <ouroboros/irm.h>
#include "irm_ops.h"
#include "irm_utils.h"
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <arpa/inet.h>
#ifdef __FreeBSD__
#include <sys/socket.h>
#endif
#define UNICAST "unicast"
#define BROADCAST "broadcast"
#define UDP "udp"
#define ETH_LLC "eth-llc"
#define ETH_DIX "eth-dix"
#define LOCAL "local"
#define MD5 "MD5"
#define SHA3_224 "SHA3_224"
#define SHA3_256 "SHA3_256"
#define SHA3_384 "SHA3_384"
#define SHA3_512 "SHA3_512"
#define DEFAULT_ADDR_SIZE 4
#define DEFAULT_EID_SIZE 8
#define DEFAULT_DDNS 0
#define DEFAULT_TTL 60
#define DEFAULT_ADDR_AUTH ADDR_AUTH_FLAT_RANDOM
#define DEFAULT_ROUTING ROUTING_LINK_STATE
#define DEFAULT_CONG_AVOID CA_MB_ECN
#define DEFAULT_HASH_ALGO DIR_HASH_SHA3_256
#define DEFAULT_ETHERTYPE 0xA000
#define DEFAULT_UDP_PORT 0x0D6B /* 3435 */
#define FLAT_RANDOM_ADDR_AUTH "flat"
#define LINK_STATE_ROUTING "link_state"
#define LINK_STATE_LFA_ROUTING "lfa"
#define LINK_STATE_ECM_ROUTING "ecmp"
#define NONE_CA "none"
#define MB_ECN_CA "mb-ecn"
static void usage(void)
{
/* FIXME: Add ipcp_config stuff. */
printf("Usage: irm ipcp bootstrap\n"
" name <ipcp name>\n"
" layer <layer name>\n"
" [type [TYPE]]\n"
"where TYPE in {" UNICAST " " BROADCAST " " LOCAL " "
UDP " " ETH_LLC " " ETH_DIX "},\n\n"
"if TYPE == " UNICAST "\n"
" [addr <address size> (default: %d)]\n"
" [eid <eid size> (default: %d)]\n"
" [ttl (max time-to-live value, default: %d)]\n"
" [addr_auth <ADDRESS_POLICY> (default: %s)]\n"
" [routing <ROUTING_POLICY> (default: %s)]\n"
" [congestion <CONG_POLICY> (default: %s)]\n"
" [hash [ALGORITHM] (default: %s)]\n"
" [autobind]\n"
"where ADDRESS_POLICY in {" FLAT_RANDOM_ADDR_AUTH "}\n"
" ROUTING_POLICY in {" LINK_STATE_ROUTING " "
LINK_STATE_LFA_ROUTING " " LINK_STATE_ECM_ROUTING "}\n"
" CONG_POLICY in {" NONE_CA " " MB_ECN_CA "}\n"
" ALGORITHM in {" SHA3_224 " " SHA3_256 " "
SHA3_384 " " SHA3_512 "}\n\n"
"if TYPE == " UDP "\n"
" ip <IP address in dotted notation>\n"
" [port <UDP port> (default: %d)]\n"
" [dns <DDNS IP address in dotted notation>"
" (default: none)]\n\n"
"if TYPE == " ETH_LLC "\n"
" dev <interface name>\n"
" [hash [ALGORITHM] (default: %s)]\n"
"where ALGORITHM in {" SHA3_224 " " SHA3_256 " "
SHA3_384 " " SHA3_512 "}\n\n"
"if TYPE == " ETH_DIX "\n"
" dev <interface name>\n"
" [ethertype <ethertype> (default: 0x%4X)]\n"
" [hash [ALGORITHM] (default: %s)]\n"
"where ALGORITHM in {" SHA3_224 " " SHA3_256 " "
SHA3_384 " " SHA3_512 "}\n\n"
"if TYPE == " LOCAL "\n"
" [hash [ALGORITHM] (default: %s)]\n"
"where ALGORITHM in {" SHA3_224 " " SHA3_256 " "
SHA3_384 " " SHA3_512 "}\n\n"
"if TYPE == " BROADCAST "\n"
" [autobind]\n\n",
DEFAULT_ADDR_SIZE, DEFAULT_EID_SIZE, DEFAULT_TTL,
FLAT_RANDOM_ADDR_AUTH, LINK_STATE_ROUTING, MB_ECN_CA,
SHA3_256, DEFAULT_UDP_PORT, SHA3_256, 0xA000, SHA3_256,
SHA3_256);
}
int do_bootstrap_ipcp(int argc,
char ** argv)
{
char * ipcp = NULL;
pid_t pid = -1;
struct ipcp_config conf;
uint8_t addr_size = DEFAULT_ADDR_SIZE;
uint8_t eid_size = DEFAULT_EID_SIZE;
uint8_t max_ttl = DEFAULT_TTL;
enum pol_addr_auth addr_auth_type = DEFAULT_ADDR_AUTH;
enum pol_routing routing_type = DEFAULT_ROUTING;
enum pol_dir_hash hash_algo = DEFAULT_HASH_ALGO;
enum pol_cong_avoid cong_avoid = DEFAULT_CONG_AVOID;
uint32_t ip_addr = 0;
uint32_t dns_addr = DEFAULT_DDNS;
char * ipcp_type = NULL;
enum ipcp_type type = IPCP_INVALID;
char * layer = NULL;
char * dev = NULL;
uint16_t ethertype = DEFAULT_ETHERTYPE;
struct ipcp_list_info * ipcps;
ssize_t len = 0;
int i = 0;
bool autobind = false;
int cargs;
int port = DEFAULT_UDP_PORT;
while (argc > 0) {
cargs = 2;
if (matches(*argv, "type") == 0) {
ipcp_type = *(argv + 1);
} else if (matches(*argv, "layer") == 0) {
layer = *(argv + 1);
} else if (matches(*argv, "name") == 0) {
ipcp = *(argv + 1);
} else if (matches(*argv, "hash") == 0) {
if (strcmp(*(argv + 1), SHA3_224) == 0)
hash_algo = DIR_HASH_SHA3_224;
else if (strcmp(*(argv + 1), SHA3_256) == 0)
hash_algo = DIR_HASH_SHA3_256;
else if (strcmp(*(argv + 1), SHA3_384) == 0)
hash_algo = DIR_HASH_SHA3_384;
else if (strcmp(*(argv + 1), SHA3_512) == 0)
hash_algo = DIR_HASH_SHA3_512;
else
goto unknown_param;
} else if (matches(*argv, "ip") == 0) {
if (inet_pton (AF_INET, *(argv + 1), &ip_addr) != 1)
goto unknown_param;
} else if (matches(*argv, "dns") == 0) {
if (inet_pton(AF_INET, *(argv + 1), &dns_addr) != 1)
goto unknown_param;
} else if (matches(*argv, "device") == 0) {
dev = *(argv + 1);
} else if (matches(*argv, "ethertype") == 0) {
/* NOTE: We might do some more checks on strtol. */
if (matches(*(argv + 1), "0x") == 0)
ethertype = strtol(*(argv + 1), NULL, 0);
else
ethertype = strtol(*(argv + 1), NULL, 16);
if (ethertype < 0x0600 || ethertype >= 0xFFFF) {
printf("Invalid Ethertype: \"%s\".\n"
"Recommended range: 0xA000-0xEFFF.\n",
*(argv + 1));
return -1;
}
} else if (matches(*argv, "addr") == 0) {
addr_size = atoi(*(argv + 1));
} else if (matches(*argv, "eid") == 0) {
eid_size = atoi(*(argv + 1));
} else if (matches(*argv, "ttl") == 0) {
max_ttl = atoi(*(argv + 1));
} else if (matches(*argv, "port") == 0) {
port = atoi(*(argv + 1));
} else if (matches(*argv, "autobind") == 0) {
autobind = true;
cargs = 1;
} else if (matches(*argv, "addr_auth") == 0) {
if (strcmp(FLAT_RANDOM_ADDR_AUTH, *(argv + 1)) == 0)
addr_auth_type = ADDR_AUTH_FLAT_RANDOM;
else
goto unknown_param;
} else if (matches(*argv, "routing") == 0) {
if (strcmp(LINK_STATE_ROUTING, *(argv + 1)) == 0)
routing_type = ROUTING_LINK_STATE;
else if (strcmp(LINK_STATE_LFA_ROUTING,
*(argv + 1)) == 0)
routing_type = ROUTING_LINK_STATE_LFA;
else if (strcmp(LINK_STATE_ECM_ROUTING,
*(argv + 1)) == 0)
routing_type = ROUTING_LINK_STATE_ECMP;
else
goto unknown_param;
} else if (matches(*argv, "congestion") == 0) {
if (strcmp(NONE_CA, *(argv + 1)) == 0)
cong_avoid = CA_NONE;
else if (strcmp(MB_ECN_CA,
*(argv + 1)) == 0)
cong_avoid = CA_MB_ECN;
else
goto unknown_param;
} else {
printf("Unknown option: \"%s\".\n", *argv);
return -1;
}
argc -= cargs;
argv += cargs;
}
if (ipcp == NULL || layer == NULL) {
usage();
return -1;
}
len = irm_list_ipcps(&ipcps);
for (i = 0; i < len; i++) {
if (wildcard_match(ipcps[i].name, ipcp) == 0) {
pid = ipcps[i].pid;
break;
}
}
if (ipcp_type != NULL) {
if (strcmp(ipcp_type, UNICAST) == 0)
type = IPCP_UNICAST;
else if (strcmp(ipcp_type, BROADCAST) == 0)
type = IPCP_BROADCAST;
else if (strcmp(ipcp_type, UDP) == 0)
type = IPCP_UDP;
else if (strcmp(ipcp_type, ETH_LLC) == 0)
type = IPCP_ETH_LLC;
else if (strcmp(ipcp_type, ETH_DIX) == 0)
type = IPCP_ETH_DIX;
else if (strcmp(ipcp_type, LOCAL) == 0)
type = IPCP_LOCAL;
else goto fail_usage;
}
if (pid == -1) {
if (ipcp_type == NULL) {
printf("No IPCPs matching %s found.\n\n", ipcp);
goto fail;
}
pid = irm_create_ipcp(ipcp, type);
if (pid < 0)
goto fail;
free(ipcps);
len = irm_list_ipcps(&ipcps);
}
for (i = 0; i < len; i++) {
if (wildcard_match(ipcps[i].name, ipcp) == 0) {
pid = ipcps[i].pid;
if (ipcp_type != NULL && type != ipcps[i].type) {
printf("Types do not match.\n\n");
goto fail;
}
conf.type = ipcps[i].type;
if (autobind && (conf.type != IPCP_UNICAST &&
conf.type != IPCP_BROADCAST)) {
printf("Can not bind this IPCP type,"
"autobind disabled.\n\n");
autobind = false;
}
if (strlen(layer) > LAYER_NAME_SIZE) {
printf("Layer name too long.\n\n");
goto fail_usage;
}
strcpy(conf.layer_info.name, layer);
conf.layer_info.dir_hash_algo = hash_algo;
switch (conf.type) {
case IPCP_UNICAST:
conf.unicast.dt.addr_size = addr_size;
conf.unicast.dt.eid_size = eid_size;
conf.unicast.dt.max_ttl = max_ttl;
conf.unicast.dt.routing_type = routing_type;
conf.unicast.addr_auth_type = addr_auth_type;
conf.unicast.cong_avoid = cong_avoid;
break;
case IPCP_UDP:
if (ip_addr == 0)
goto fail_usage;
conf.udp.ip_addr = ip_addr;
conf.udp.dns_addr = dns_addr;
conf.udp.port = port;
break;
case IPCP_ETH_DIX:
conf.eth.ethertype = ethertype;
/* FALLTHRU */
case IPCP_ETH_LLC:
if (dev == NULL)
goto fail_usage;
if (strlen(dev) > DEV_NAME_SIZE) {
printf("Device name too long.\n\n");
goto fail_usage;
}
strcpy(conf.eth.dev, dev);
break;
case IPCP_BROADCAST:
/* FALLTHRU */
case IPCP_LOCAL:
break;
default:
assert(false);
break;
}
if (autobind && irm_bind_process(pid, ipcp)) {
printf("Failed to bind %d to %s.\n", pid, ipcp);
goto fail;
}
if (autobind && irm_bind_process(pid, layer)) {
printf("Failed to bind %d to %s.\n",
pid, layer);
irm_unbind_process(pid, ipcp);
goto fail;
}
if (irm_bootstrap_ipcp(pid, &conf)) {
if (autobind) {
irm_unbind_process(pid, ipcp);
irm_unbind_process(pid, layer);
}
goto fail;
}
}
}
free(ipcps);
return 0;
unknown_param:
printf("Unknown parameter for %s: \"%s\".\n", *argv, *(argv + 1));
return -1;
fail_usage:
usage();
fail:
free(ipcps);
return -1;
}
|
