You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
708 lines
22 KiB
708 lines
22 KiB
/* |
|
* Copyright (C) 2011 The Android Open Source Project |
|
* |
|
* 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 <stdio.h> |
|
#include <stdlib.h> |
|
#include <string.h> |
|
#include <unistd.h> |
|
#include <sys/param.h> |
|
#include <sys/types.h> |
|
#include <sys/socket.h> |
|
#include <netinet/in.h> |
|
#include <netinet/ip.h> |
|
#include <netdb.h> |
|
#include <fcntl.h> |
|
|
|
#include "config.h" |
|
#include "gcmalloc.h" |
|
#include "libpfkey.h" |
|
#include "var.h" |
|
#include "isakmp_var.h" |
|
#include "isakmp.h" |
|
#include "isakmp_xauth.h" |
|
#include "vmbuf.h" |
|
#include "crypto_openssl.h" |
|
#include "oakley.h" |
|
#include "ipsec_doi.h" |
|
#include "algorithm.h" |
|
#include "vendorid.h" |
|
#include "schedule.h" |
|
#include "pfkey.h" |
|
#include "nattraversal.h" |
|
#include "proposal.h" |
|
#include "sainfo.h" |
|
#include "localconf.h" |
|
#include "remoteconf.h" |
|
#include "sockmisc.h" |
|
#include "grabmyaddr.h" |
|
#include "plog.h" |
|
#include "admin.h" |
|
#include "privsep.h" |
|
#include "throttle.h" |
|
#include "misc.h" |
|
#include "handler.h" |
|
|
|
static struct localconf localconf; |
|
static struct sainfo sainfo; |
|
static char *pre_shared_key; |
|
|
|
static struct sockaddr *targets[2]; |
|
static struct sockaddr *source; |
|
static struct myaddrs myaddrs[2]; |
|
|
|
struct localconf *lcconf = &localconf; |
|
int f_local = 0; |
|
|
|
/*****************************************************************************/ |
|
|
|
static void add_sainfo_algorithm(int class, int algorithm, int length) |
|
{ |
|
struct sainfoalg *p = calloc(1, sizeof(struct sainfoalg)); |
|
p->alg = algorithm; |
|
p->encklen = length; |
|
|
|
if (!sainfo.algs[class]) { |
|
sainfo.algs[class] = p; |
|
} else { |
|
struct sainfoalg *q = sainfo.algs[class]; |
|
while (q->next) { |
|
q = q->next; |
|
} |
|
q->next = p; |
|
} |
|
} |
|
|
|
static void add_sainfo() { |
|
if (pk_checkalg(algclass_ipsec_auth, algtype_hmac_sha2_512, 0) == 0) { |
|
add_sainfo_algorithm(algclass_ipsec_auth, IPSECDOI_ATTR_AUTH_HMAC_SHA2_512, 0); |
|
} else { |
|
do_plog(LLV_WARNING, "Kernel does not support SHA512, not enabling\n"); |
|
} |
|
if (pk_checkalg(algclass_ipsec_auth, algtype_hmac_sha2_384, 0) == 0) { |
|
add_sainfo_algorithm(algclass_ipsec_auth, IPSECDOI_ATTR_AUTH_HMAC_SHA2_384, 0); |
|
} else { |
|
do_plog(LLV_WARNING, "Kernel does not support SHA384, not enabling\n"); |
|
} |
|
add_sainfo_algorithm(algclass_ipsec_auth, IPSECDOI_ATTR_AUTH_HMAC_SHA1, 0); |
|
add_sainfo_algorithm(algclass_ipsec_auth, IPSECDOI_ATTR_AUTH_HMAC_SHA2_256, 0); |
|
add_sainfo_algorithm(algclass_ipsec_auth, IPSECDOI_ATTR_AUTH_HMAC_MD5, 0); |
|
add_sainfo_algorithm(algclass_ipsec_enc, IPSECDOI_ESP_AES, 256); |
|
add_sainfo_algorithm(algclass_ipsec_enc, IPSECDOI_ESP_AES, 128); |
|
add_sainfo_algorithm(algclass_ipsec_enc, IPSECDOI_ESP_3DES, 0); |
|
add_sainfo_algorithm(algclass_ipsec_enc, IPSECDOI_ESP_DES, 0); |
|
} |
|
|
|
static void set_globals(char *server) |
|
{ |
|
struct addrinfo hints = { |
|
.ai_flags = AI_NUMERICSERV, |
|
#ifndef INET6 |
|
.ai_family = AF_INET, |
|
#else |
|
.ai_family = AF_UNSPEC, |
|
#endif |
|
.ai_socktype = SOCK_DGRAM, |
|
}; |
|
struct addrinfo *info; |
|
|
|
if (getaddrinfo(server, "500", &hints, &info) != 0) { |
|
do_plog(LLV_ERROR, "Cannot resolve address: %s\n", server); |
|
exit(1); |
|
} |
|
if (info->ai_next) { |
|
do_plog(LLV_WARNING, "Found multiple addresses. Use the first one.\n"); |
|
} |
|
targets[0] = dupsaddr(info->ai_addr); |
|
freeaddrinfo(info); |
|
|
|
source = getlocaladdr(targets[0]); |
|
if (!source) { |
|
do_plog(LLV_ERROR, "Cannot get local address\n"); |
|
exit(1); |
|
} |
|
set_port(targets[0], 0); |
|
set_port(source, 0); |
|
|
|
myaddrs[0].addr = dupsaddr(source); |
|
set_port(myaddrs[0].addr, PORT_ISAKMP); |
|
myaddrs[0].sock = -1; |
|
#ifdef ENABLE_NATT |
|
myaddrs[0].next = &myaddrs[1]; |
|
myaddrs[1].addr = dupsaddr(myaddrs[0].addr); |
|
set_port(myaddrs[1].addr, PORT_ISAKMP_NATT); |
|
myaddrs[1].sock = -1; |
|
myaddrs[1].udp_encap = 1; |
|
#endif |
|
|
|
localconf.myaddrs = &myaddrs[0]; |
|
localconf.port_isakmp = PORT_ISAKMP; |
|
localconf.port_isakmp_natt = PORT_ISAKMP_NATT; |
|
localconf.default_af = AF_INET; |
|
localconf.pathinfo[LC_PATHTYPE_CERT] = "./"; |
|
localconf.pad_random = LC_DEFAULT_PAD_RANDOM; |
|
localconf.pad_randomlen = LC_DEFAULT_PAD_RANDOM; |
|
localconf.pad_strict = LC_DEFAULT_PAD_STRICT; |
|
localconf.pad_excltail = LC_DEFAULT_PAD_EXCLTAIL; |
|
localconf.retry_counter = 10; |
|
localconf.retry_interval = 3; |
|
localconf.count_persend = LC_DEFAULT_COUNT_PERSEND; |
|
localconf.secret_size = LC_DEFAULT_SECRETSIZE; |
|
localconf.retry_checkph1 = LC_DEFAULT_RETRY_CHECKPH1; |
|
localconf.wait_ph2complete = LC_DEFAULT_WAIT_PH2COMPLETE; |
|
localconf.natt_ka_interval = LC_DEFAULT_NATT_KA_INTERVAL; |
|
|
|
sainfo.lifetime = IPSECDOI_ATTR_SA_LD_SEC_DEFAULT; |
|
sainfo.lifebyte = IPSECDOI_ATTR_SA_LD_KB_MAX; |
|
|
|
memset(script_names, 0, sizeof(script_names)); |
|
} |
|
|
|
/*****************************************************************************/ |
|
|
|
static int policy_match(struct sadb_address *address) |
|
{ |
|
if (address) { |
|
struct sockaddr *addr = PFKEY_ADDR_SADDR(address); |
|
return !cmpsaddrwop(addr, targets[0]) || !cmpsaddrwop(addr, targets[1]); |
|
} |
|
return 0; |
|
} |
|
|
|
/* flush; spdflush; */ |
|
static void flush() |
|
{ |
|
struct sadb_msg *p; |
|
int replies = 0; |
|
int key = pfkey_open(); |
|
|
|
if (pfkey_send_dump(key, SADB_SATYPE_UNSPEC) <= 0 || |
|
pfkey_send_spddump(key) <= 0) { |
|
do_plog(LLV_ERROR, "Cannot dump SAD and SPD\n"); |
|
exit(1); |
|
} |
|
|
|
for (p = NULL; replies < 2 && (p = pfkey_recv(key)) != NULL; free(p)) { |
|
caddr_t q[SADB_EXT_MAX + 1]; |
|
|
|
if (p->sadb_msg_type != SADB_DUMP && |
|
p->sadb_msg_type != SADB_X_SPDDUMP) { |
|
continue; |
|
} |
|
replies += !p->sadb_msg_seq; |
|
|
|
if (p->sadb_msg_errno || pfkey_align(p, q) || pfkey_check(q)) { |
|
continue; |
|
} |
|
if (policy_match((struct sadb_address *)q[SADB_EXT_ADDRESS_SRC]) || |
|
policy_match((struct sadb_address *)q[SADB_EXT_ADDRESS_DST])) { |
|
p->sadb_msg_type = (p->sadb_msg_type == SADB_DUMP) ? |
|
SADB_DELETE : SADB_X_SPDDELETE; |
|
p->sadb_msg_reserved = 0; |
|
p->sadb_msg_seq = 0; |
|
pfkey_send(key, p, PFKEY_UNUNIT64(p->sadb_msg_len)); |
|
} |
|
} |
|
|
|
pfkey_close(key); |
|
} |
|
|
|
/* spdadd src dst protocol -P out ipsec esp/transport//require; |
|
* spdadd dst src protocol -P in ipsec esp/transport//require; |
|
* or |
|
* spdadd src any protocol -P out ipsec esp/tunnel/local-remote/require; |
|
* spdadd any src protocol -P in ipsec esp/tunnel/remote-local/require; */ |
|
static void spdadd(struct sockaddr *src, struct sockaddr *dst, |
|
int protocol, struct sockaddr *local, struct sockaddr *remote) |
|
{ |
|
struct __attribute__((packed)) { |
|
struct sadb_x_policy p; |
|
struct sadb_x_ipsecrequest q; |
|
char addresses[sizeof(struct sockaddr_storage) * 2]; |
|
} policy; |
|
|
|
struct sockaddr_storage any = { |
|
#ifndef __linux__ |
|
.ss_len = src->sa_len, |
|
#endif |
|
.ss_family = src->sa_family, |
|
}; |
|
|
|
int src_prefix = (src->sa_family == AF_INET) ? 32 : 128; |
|
int dst_prefix = src_prefix; |
|
int length = 0; |
|
int key; |
|
|
|
/* Fill values for outbound policy. */ |
|
memset(&policy, 0, sizeof(policy)); |
|
policy.p.sadb_x_policy_exttype = SADB_X_EXT_POLICY; |
|
policy.p.sadb_x_policy_type = IPSEC_POLICY_IPSEC; |
|
policy.p.sadb_x_policy_dir = IPSEC_DIR_OUTBOUND; |
|
#ifdef HAVE_PFKEY_POLICY_PRIORITY |
|
policy.p.sadb_x_policy_priority = PRIORITY_DEFAULT; |
|
#endif |
|
policy.q.sadb_x_ipsecrequest_proto = IPPROTO_ESP; |
|
policy.q.sadb_x_ipsecrequest_mode = IPSEC_MODE_TRANSPORT; |
|
policy.q.sadb_x_ipsecrequest_level = IPSEC_LEVEL_REQUIRE; |
|
|
|
/* Deal with tunnel mode. */ |
|
if (!dst) { |
|
int size = sysdep_sa_len(local); |
|
memcpy(policy.addresses, local, size); |
|
memcpy(&policy.addresses[size], remote, size); |
|
length += size + size; |
|
|
|
policy.q.sadb_x_ipsecrequest_mode = IPSEC_MODE_TUNNEL; |
|
dst = (struct sockaddr *)&any; |
|
dst_prefix = 0; |
|
|
|
/* Also use the source address to filter policies. */ |
|
targets[1] = dupsaddr(src); |
|
} |
|
|
|
/* Fix lengths. */ |
|
length += sizeof(policy.q); |
|
policy.q.sadb_x_ipsecrequest_len = length; |
|
length += sizeof(policy.p); |
|
policy.p.sadb_x_policy_len = PFKEY_UNIT64(length); |
|
|
|
/* Always do a flush before adding new policies. */ |
|
flush(); |
|
|
|
/* Set outbound policy. */ |
|
key = pfkey_open(); |
|
if (pfkey_send_spdadd(key, src, src_prefix, dst, dst_prefix, protocol, |
|
(caddr_t)&policy, length, 0) <= 0) { |
|
do_plog(LLV_ERROR, "Cannot set outbound policy\n"); |
|
exit(1); |
|
} |
|
|
|
/* Flip values for inbound policy. */ |
|
policy.p.sadb_x_policy_dir = IPSEC_DIR_INBOUND; |
|
if (!dst_prefix) { |
|
int size = sysdep_sa_len(local); |
|
memcpy(policy.addresses, remote, size); |
|
memcpy(&policy.addresses[size], local, size); |
|
} |
|
|
|
/* Set inbound policy. */ |
|
if (pfkey_send_spdadd(key, dst, dst_prefix, src, src_prefix, protocol, |
|
(caddr_t)&policy, length, 0) <= 0) { |
|
do_plog(LLV_ERROR, "Cannot set inbound policy\n"); |
|
exit(1); |
|
} |
|
|
|
pfkey_close(key); |
|
atexit(flush); |
|
} |
|
|
|
/*****************************************************************************/ |
|
|
|
static void add_proposal(struct remoteconf *remoteconf, |
|
int auth, int hash, int encryption, int length) |
|
{ |
|
struct isakmpsa *p = racoon_calloc(1, sizeof(struct isakmpsa)); |
|
p->prop_no = 1; |
|
p->lifetime = OAKLEY_ATTR_SA_LD_SEC_DEFAULT; |
|
p->enctype = encryption; |
|
p->encklen = length; |
|
p->authmethod = auth; |
|
p->hashtype = hash; |
|
p->dh_group = OAKLEY_ATTR_GRP_DESC_MODP1024; |
|
p->vendorid = VENDORID_UNKNOWN; |
|
p->rmconf = remoteconf; |
|
|
|
if (!remoteconf->proposal) { |
|
p->trns_no = 1; |
|
remoteconf->proposal = p; |
|
} else { |
|
struct isakmpsa *q = remoteconf->proposal; |
|
while (q->next) { |
|
q = q->next; |
|
} |
|
p->trns_no = q->trns_no + 1; |
|
q->next = p; |
|
} |
|
} |
|
|
|
static vchar_t *strtovchar(char *string) |
|
{ |
|
vchar_t *vchar = string ? vmalloc(strlen(string) + 1) : NULL; |
|
if (vchar) { |
|
memcpy(vchar->v, string, vchar->l); |
|
vchar->l -= 1; |
|
} |
|
return vchar; |
|
} |
|
|
|
static void set_pre_shared_key(struct remoteconf *remoteconf, |
|
char *identifier, char *key) |
|
{ |
|
pre_shared_key = key; |
|
if (identifier[0]) { |
|
remoteconf->idv = strtovchar(identifier); |
|
remoteconf->etypes->type = ISAKMP_ETYPE_AGG; |
|
|
|
remoteconf->idvtype = IDTYPE_KEYID; |
|
if (strchr(identifier, '.')) { |
|
remoteconf->idvtype = IDTYPE_FQDN; |
|
if (strchr(identifier, '@')) { |
|
remoteconf->idvtype = IDTYPE_USERFQDN; |
|
} |
|
} |
|
} |
|
} |
|
|
|
static void set_certificates(struct remoteconf *remoteconf, |
|
char *user_private_key, char *user_certificate, |
|
char *ca_certificate, char *server_certificate) |
|
{ |
|
remoteconf->myprivfile = user_private_key; |
|
remoteconf->mycertfile = user_certificate; |
|
if (user_certificate) { |
|
remoteconf->idvtype = IDTYPE_ASN1DN; |
|
} |
|
if (!ca_certificate[0]) { |
|
remoteconf->verify_cert = FALSE; |
|
} else { |
|
remoteconf->cacertfile = ca_certificate; |
|
} |
|
if (server_certificate[0]) { |
|
remoteconf->peerscertfile = server_certificate; |
|
remoteconf->getcert_method = ISAKMP_GETCERT_LOCALFILE; |
|
} |
|
} |
|
|
|
#ifdef ENABLE_HYBRID |
|
|
|
static void set_xauth_and_more(struct remoteconf *remoteconf, |
|
char *username, char *password, char *phase1_up, char *script_arg) |
|
{ |
|
struct xauth_rmconf *xauth = racoon_calloc(1, sizeof(struct xauth_rmconf)); |
|
xauth->login = strtovchar(username); |
|
xauth->login->l += 1; |
|
xauth->pass = strtovchar(password); |
|
// Unlike the code that reads login, the code that reads pass does not |
|
// strip trailing nulls, so don't add one here. |
|
remoteconf->xauth = xauth; |
|
remoteconf->mode_cfg = TRUE; |
|
remoteconf->script[SCRIPT_PHASE1_UP] = strtovchar(phase1_up); |
|
script_names[SCRIPT_PHASE1_UP] = script_arg; |
|
} |
|
|
|
#endif |
|
|
|
extern void monitor_fd(int fd, void (*callback)(int)); |
|
|
|
void add_isakmp_handler(int fd, const char *interface) |
|
{ |
|
if (setsockopt(fd, SOL_SOCKET, SO_BINDTODEVICE, |
|
interface, strlen(interface))) { |
|
do_plog(LLV_WARNING, "Cannot bind socket to %s\n", interface); |
|
} |
|
monitor_fd(fd, (void *)isakmp_handler); |
|
} |
|
|
|
void setup(int argc, char **argv) |
|
{ |
|
struct remoteconf *remoteconf = NULL; |
|
int auth; |
|
|
|
if (argc > 2) { |
|
set_globals(argv[2]); |
|
|
|
/* Initialize everything else. */ |
|
eay_init(); |
|
initrmconf(); |
|
oakley_dhinit(); |
|
compute_vendorids(); |
|
sched_init(); |
|
if (pfkey_init() < 0 || isakmp_init() < 0) { |
|
exit(1); |
|
} |
|
add_sainfo(); |
|
monitor_fd(localconf.sock_pfkey, (void *)pfkey_handler); |
|
add_isakmp_handler(myaddrs[0].sock, argv[1]); |
|
|
|
#ifdef ENABLE_NATT |
|
add_isakmp_handler(myaddrs[1].sock, argv[1]); |
|
natt_keepalive_init(); |
|
#endif |
|
|
|
/* Create remote configuration. */ |
|
remoteconf = newrmconf(); |
|
remoteconf->etypes = racoon_calloc(1, sizeof(struct etypes)); |
|
remoteconf->etypes->type = ISAKMP_ETYPE_IDENT; |
|
remoteconf->idvtype = IDTYPE_ADDRESS; |
|
remoteconf->ike_frag = TRUE; |
|
remoteconf->pcheck_level = PROP_CHECK_CLAIM; |
|
remoteconf->certtype = ISAKMP_CERT_X509SIGN; |
|
remoteconf->gen_policy = TRUE; |
|
remoteconf->nat_traversal = TRUE; |
|
remoteconf->dh_group = OAKLEY_ATTR_GRP_DESC_MODP1024; |
|
remoteconf->script[SCRIPT_PHASE1_UP] = strtovchar(""); |
|
remoteconf->script[SCRIPT_PHASE1_DOWN] = strtovchar(""); |
|
oakley_setdhgroup(remoteconf->dh_group, &remoteconf->dhgrp); |
|
remoteconf->remote = dupsaddr(targets[0]); |
|
} |
|
|
|
/* Set authentication method and credentials. */ |
|
if (argc == 7 && !strcmp(argv[3], "udppsk")) { |
|
set_pre_shared_key(remoteconf, argv[4], argv[5]); |
|
auth = OAKLEY_ATTR_AUTH_METHOD_PSKEY; |
|
|
|
set_port(targets[0], atoi(argv[6])); |
|
spdadd(source, targets[0], IPPROTO_UDP, NULL, NULL); |
|
} else if (argc == 9 && !strcmp(argv[3], "udprsa")) { |
|
set_certificates(remoteconf, argv[4], argv[5], argv[6], argv[7]); |
|
auth = OAKLEY_ATTR_AUTH_METHOD_RSASIG; |
|
|
|
set_port(targets[0], atoi(argv[8])); |
|
spdadd(source, targets[0], IPPROTO_UDP, NULL, NULL); |
|
#ifdef ENABLE_HYBRID |
|
} else if (argc == 10 && !strcmp(argv[3], "xauthpsk")) { |
|
set_pre_shared_key(remoteconf, argv[4], argv[5]); |
|
set_xauth_and_more(remoteconf, argv[6], argv[7], argv[8], argv[9]); |
|
auth = OAKLEY_ATTR_AUTH_METHOD_XAUTH_PSKEY_I; |
|
} else if (argc == 12 && !strcmp(argv[3], "xauthrsa")) { |
|
set_certificates(remoteconf, argv[4], argv[5], argv[6], argv[7]); |
|
set_xauth_and_more(remoteconf, argv[8], argv[9], argv[10], argv[11]); |
|
auth = OAKLEY_ATTR_AUTH_METHOD_XAUTH_RSASIG_I; |
|
} else if (argc == 10 && !strcmp(argv[3], "hybridrsa")) { |
|
set_certificates(remoteconf, NULL, NULL, argv[4], argv[5]); |
|
set_xauth_and_more(remoteconf, argv[6], argv[7], argv[8], argv[9]); |
|
auth = OAKLEY_ATTR_AUTH_METHOD_HYBRID_RSA_I; |
|
#endif |
|
} else { |
|
printf("Usage: %s <interface> <server> [...], where [...] can be:\n" |
|
" udppsk <identifier> <pre-shared-key> <port>; \n" |
|
" udprsa <user-private-key> <user-certificate> \\\n" |
|
" <ca-certificate> <server-certificate> <port>;\n" |
|
#ifdef ENABLE_HYBRID |
|
" xauthpsk <identifier> <pre-shared-key> \\\n" |
|
" <username> <password> <phase1-up> <script-arg>;\n" |
|
" xauthrsa <user-private-key> <user-certificate> \\\n" |
|
" <ca-certificate> <server-certificate> \\\n" |
|
" <username> <password> <phase1-up> <script-arg>;\n" |
|
" hybridrsa <ca-certificate> <server-certificate> \\\n" |
|
" <username> <password> <phase1-up> <script-arg>;\n" |
|
#endif |
|
"", argv[0]); |
|
exit(0); |
|
} |
|
|
|
/* Add proposals. */ |
|
add_proposal(remoteconf, auth, |
|
OAKLEY_ATTR_HASH_ALG_SHA2_384, OAKLEY_ATTR_ENC_ALG_AES, 256); |
|
add_proposal(remoteconf, auth, |
|
OAKLEY_ATTR_HASH_ALG_SHA2_256, OAKLEY_ATTR_ENC_ALG_AES, 256); |
|
// VPNs to openswan breaks when SHA2_512 is used as the first proposal. |
|
// openswan supports SHA2_256 or lower hash alg. With this add_proposal |
|
// order, openswan picks SHA2_256 and others pick SHA2_384 |
|
add_proposal(remoteconf, auth, |
|
OAKLEY_ATTR_HASH_ALG_SHA2_512, OAKLEY_ATTR_ENC_ALG_AES, 256); |
|
add_proposal(remoteconf, auth, |
|
OAKLEY_ATTR_HASH_ALG_SHA, OAKLEY_ATTR_ENC_ALG_AES, 256); |
|
add_proposal(remoteconf, auth, |
|
OAKLEY_ATTR_HASH_ALG_MD5, OAKLEY_ATTR_ENC_ALG_AES, 256); |
|
add_proposal(remoteconf, auth, |
|
OAKLEY_ATTR_HASH_ALG_SHA2_512, OAKLEY_ATTR_ENC_ALG_AES, 128); |
|
add_proposal(remoteconf, auth, |
|
OAKLEY_ATTR_HASH_ALG_SHA2_384, OAKLEY_ATTR_ENC_ALG_AES, 128); |
|
add_proposal(remoteconf, auth, |
|
OAKLEY_ATTR_HASH_ALG_SHA2_256, OAKLEY_ATTR_ENC_ALG_AES, 128); |
|
add_proposal(remoteconf, auth, |
|
OAKLEY_ATTR_HASH_ALG_SHA, OAKLEY_ATTR_ENC_ALG_AES, 128); |
|
add_proposal(remoteconf, auth, |
|
OAKLEY_ATTR_HASH_ALG_MD5, OAKLEY_ATTR_ENC_ALG_AES, 128); |
|
add_proposal(remoteconf, auth, |
|
OAKLEY_ATTR_HASH_ALG_SHA2_256, OAKLEY_ATTR_ENC_ALG_3DES, 0); |
|
add_proposal(remoteconf, auth, |
|
OAKLEY_ATTR_HASH_ALG_SHA, OAKLEY_ATTR_ENC_ALG_3DES, 0); |
|
add_proposal(remoteconf, auth, |
|
OAKLEY_ATTR_HASH_ALG_MD5, OAKLEY_ATTR_ENC_ALG_3DES, 0); |
|
add_proposal(remoteconf, auth, |
|
OAKLEY_ATTR_HASH_ALG_SHA2_256, OAKLEY_ATTR_ENC_ALG_DES, 0); |
|
add_proposal(remoteconf, auth, |
|
OAKLEY_ATTR_HASH_ALG_SHA, OAKLEY_ATTR_ENC_ALG_DES, 0); |
|
add_proposal(remoteconf, auth, |
|
OAKLEY_ATTR_HASH_ALG_MD5, OAKLEY_ATTR_ENC_ALG_DES, 0); |
|
|
|
/* Install remote configuration. */ |
|
insrmconf(remoteconf); |
|
|
|
/* Start phase 1 negotiation for xauth. */ |
|
if (remoteconf->xauth) { |
|
isakmp_ph1begin_i(remoteconf, remoteconf->remote, source); |
|
} |
|
} |
|
|
|
/*****************************************************************************/ |
|
|
|
/* localconf.h */ |
|
|
|
vchar_t *getpskbyaddr(struct sockaddr *addr) |
|
{ |
|
return strtovchar(pre_shared_key); |
|
} |
|
|
|
vchar_t *getpskbyname(vchar_t *name) |
|
{ |
|
return NULL; |
|
} |
|
|
|
void getpathname(char *path, int length, int type, const char *name) |
|
{ |
|
if (pname) { |
|
snprintf(path, length, pname, name); |
|
} else { |
|
strncpy(path, name, length); |
|
} |
|
path[length - 1] = '\0'; |
|
} |
|
|
|
/* grabmyaddr.h */ |
|
|
|
int myaddr_getsport(struct sockaddr *addr) |
|
{ |
|
return 0; |
|
} |
|
|
|
int getsockmyaddr(struct sockaddr *addr) |
|
{ |
|
#ifdef ENABLE_NATT |
|
if (!cmpsaddrstrict(addr, myaddrs[1].addr)) { |
|
return myaddrs[1].sock; |
|
} |
|
#endif |
|
if (!cmpsaddrwop(addr, myaddrs[0].addr)) { |
|
return myaddrs[0].sock; |
|
} |
|
return -1; |
|
} |
|
|
|
/* privsep.h */ |
|
|
|
int privsep_pfkey_open() |
|
{ |
|
return pfkey_open(); |
|
} |
|
|
|
void privsep_pfkey_close(int key) |
|
{ |
|
pfkey_close(key); |
|
} |
|
|
|
vchar_t *privsep_eay_get_pkcs1privkey(char *file) |
|
{ |
|
return eay_get_pkcs1privkey(file); |
|
} |
|
|
|
static char *get_env(char * const *envp, char *key) |
|
{ |
|
int length = strlen(key); |
|
while (*envp && (strncmp(*envp, key, length) || (*envp)[length] != '=')) { |
|
++envp; |
|
} |
|
return *envp ? &(*envp)[length + 1] : ""; |
|
} |
|
|
|
static int skip_script = 0; |
|
extern const char *android_hook(char **envp); |
|
|
|
int privsep_script_exec(char *script, int name, char * const *envp) |
|
{ |
|
if (skip_script) { |
|
return 0; |
|
} |
|
skip_script = 1; |
|
|
|
if (name == SCRIPT_PHASE1_DOWN) { |
|
exit(1); |
|
} |
|
if (script_names[SCRIPT_PHASE1_UP]) { |
|
/* Racoon ignores INTERNAL_IP6_ADDRESS, so we only do IPv4. */ |
|
struct sockaddr *addr4 = str2saddr(get_env(envp, "INTERNAL_ADDR4"), |
|
NULL); |
|
struct sockaddr *local = str2saddr(get_env(envp, "LOCAL_ADDR"), |
|
get_env(envp, "LOCAL_PORT")); |
|
struct sockaddr *remote = str2saddr(get_env(envp, "REMOTE_ADDR"), |
|
get_env(envp, "REMOTE_PORT")); |
|
|
|
if (addr4 && local && remote) { |
|
#ifdef ANDROID_CHANGES |
|
if (pname) { |
|
script = (char *)android_hook((char **)envp); |
|
} |
|
#endif |
|
spdadd(addr4, NULL, IPPROTO_IP, local, remote); |
|
} else { |
|
do_plog(LLV_ERROR, "Cannot get parameters for SPD policy.\n"); |
|
exit(1); |
|
} |
|
|
|
racoon_free(addr4); |
|
racoon_free(local); |
|
racoon_free(remote); |
|
return script_exec(script, name, envp); |
|
} |
|
return 0; |
|
} |
|
|
|
int privsep_accounting_system(int port, struct sockaddr *addr, |
|
char *user, int status) |
|
{ |
|
return 0; |
|
} |
|
|
|
int privsep_xauth_login_system(char *user, char *password) |
|
{ |
|
return -1; |
|
} |
|
|
|
/* misc.h */ |
|
|
|
int racoon_hexdump(void *data, size_t length) |
|
{ |
|
return 0; |
|
} |
|
|
|
/* sainfo.h */ |
|
|
|
struct sainfo *getsainfo(const vchar_t *src, const vchar_t *dst, |
|
const vchar_t *peer, int remoteid) |
|
{ |
|
return &sainfo; |
|
} |
|
|
|
const char *sainfo2str(const struct sainfo *si) |
|
{ |
|
return "*"; |
|
} |
|
|
|
/* throttle.h */ |
|
|
|
int throttle_host(struct sockaddr *addr, int fail) |
|
{ |
|
return 0; |
|
} |
|
|
|
void shutdown_session() |
|
{ |
|
flushph2(); |
|
flushph1(); |
|
isakmp_close(); |
|
pfkey_close(localconf.sock_pfkey); |
|
}
|
|
|