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Properly install policies with ports in PF_KEY kernel interface.

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This commit is contained in:
Tobias Brunner
2012-06-07 14:37:00 +02:00
parent ab24a32edf
commit 9041c074b3
1 changed files with 28 additions and 27 deletions
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src/libhydra/plugins/kernel_pfkey/kernel_pfkey_ipsec.c
+28 -27
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@@ -1,5 +1,5 @@
/*
* Copyright (C) 2008-2011 Tobias Brunner
* Copyright (C) 2008-2012 Tobias Brunner
* Copyright (C) 2008 Andreas Steffen
* Hochschule fuer Technik Rapperswil
*
@@ -809,14 +809,15 @@ static int lookup_algorithm(kernel_algorithm_t *list, int ikev2)
}
/**
* Copy a host_t as sockaddr_t to the given memory location. Ports are
* reset to zero as per RFC 2367.
* Copy a host_t as sockaddr_t to the given memory location.
* @return the number of bytes copied
*/
static size_t hostcpy(void *dest, host_t *host)
static size_t hostcpy(void *dest, host_t *host, bool include_port)
{
sockaddr_t *addr = host->get_sockaddr(host), *dest_addr = dest;
socklen_t *len = host->get_sockaddr_len(host);
u_int16_t port = htons(host->get_port(host));
memcpy(dest, addr, *len);
#ifdef HAVE_STRUCT_SOCKADDR_SA_LEN
dest_addr->sa_len = *len;
@@ -826,13 +827,13 @@ static size_t hostcpy(void *dest, host_t *host)
case AF_INET:
{
struct sockaddr_in *sin = dest;
sin->sin_port = 0;
sin->sin_port = include_port ? port : 0;
break;
}
case AF_INET6:
{
struct sockaddr_in6 *sin6 = dest;
sin6->sin6_port = 0;
sin6->sin6_port = include_port ? port : 0;
break;
}
}
@@ -842,9 +843,9 @@ static size_t hostcpy(void *dest, host_t *host)
/**
* add a host behind an sadb_address extension
*/
static void host2ext(host_t *host, struct sadb_address *ext)
static void host2ext(host_t *host, struct sadb_address *ext, bool include_port)
{
size_t len = hostcpy(ext + 1, host);
size_t len = hostcpy(ext + 1, host, include_port);
ext->sadb_address_len = PFKEY_LEN(sizeof(*ext) + len);
}
@@ -852,13 +853,13 @@ static void host2ext(host_t *host, struct sadb_address *ext)
* add a host to the given sadb_msg
*/
static void add_addr_ext(struct sadb_msg *msg, host_t *host, u_int16_t type,
u_int8_t proto, u_int8_t prefixlen)
u_int8_t proto, u_int8_t prefixlen, bool include_port)
{
struct sadb_address *addr = (struct sadb_address*)PFKEY_EXT_ADD_NEXT(msg);
addr->sadb_address_exttype = type;
addr->sadb_address_proto = proto;
addr->sadb_address_prefixlen = prefixlen;
host2ext(host, addr);
host2ext(host, addr, include_port);
PFKEY_EXT_ADD(msg, addr);
}
@@ -1410,8 +1411,8 @@ METHOD(kernel_ipsec_t, get_spi, status_t,
sa2->sadb_x_sa2_reqid = reqid;
PFKEY_EXT_ADD(msg, sa2);
add_addr_ext(msg, src, SADB_EXT_ADDRESS_SRC, 0, 0);
add_addr_ext(msg, dst, SADB_EXT_ADDRESS_DST, 0, 0);
add_addr_ext(msg, src, SADB_EXT_ADDRESS_SRC, 0, 0, FALSE);
add_addr_ext(msg, dst, SADB_EXT_ADDRESS_DST, 0, 0, FALSE);
range = (struct sadb_spirange*)PFKEY_EXT_ADD_NEXT(msg);
range->sadb_spirange_exttype = SADB_EXT_SPIRANGE;
@@ -1508,8 +1509,8 @@ METHOD(kernel_ipsec_t, add_sa, status_t,
sa2->sadb_x_sa2_reqid = reqid;
PFKEY_EXT_ADD(msg, sa2);
add_addr_ext(msg, src, SADB_EXT_ADDRESS_SRC, 0, 0);
add_addr_ext(msg, dst, SADB_EXT_ADDRESS_DST, 0, 0);
add_addr_ext(msg, src, SADB_EXT_ADDRESS_SRC, 0, 0, FALSE);
add_addr_ext(msg, dst, SADB_EXT_ADDRESS_DST, 0, 0, FALSE);
lft = (struct sadb_lifetime*)PFKEY_EXT_ADD_NEXT(msg);
lft->sadb_lifetime_exttype = SADB_EXT_LIFETIME_SOFT;
@@ -1639,7 +1640,7 @@ METHOD(kernel_ipsec_t, update_sa, status_t,
/* the kernel wants a SADB_EXT_ADDRESS_SRC to be present even though
* it is not used for anything. */
add_anyaddr_ext(msg, dst->get_family(dst), SADB_EXT_ADDRESS_SRC);
add_addr_ext(msg, dst, SADB_EXT_ADDRESS_DST, 0, 0);
add_addr_ext(msg, dst, SADB_EXT_ADDRESS_DST, 0, 0, FALSE);
if (pfkey_send(this, msg, &out, &len) != SUCCESS)
{
@@ -1762,8 +1763,8 @@ METHOD(kernel_ipsec_t, query_sa, status_t,
/* the Linux Kernel doesn't care for the src address, but other systems do
* (e.g. FreeBSD)
*/
add_addr_ext(msg, src, SADB_EXT_ADDRESS_SRC, 0, 0);
add_addr_ext(msg, dst, SADB_EXT_ADDRESS_DST, 0, 0);
add_addr_ext(msg, src, SADB_EXT_ADDRESS_SRC, 0, 0, FALSE);
add_addr_ext(msg, dst, SADB_EXT_ADDRESS_DST, 0, 0, FALSE);
if (pfkey_send(this, msg, &out, &len) != SUCCESS)
{
@@ -1818,8 +1819,8 @@ METHOD(kernel_ipsec_t, del_sa, status_t,
/* the Linux Kernel doesn't care for the src address, but other systems do
* (e.g. FreeBSD)
*/
add_addr_ext(msg, src, SADB_EXT_ADDRESS_SRC, 0, 0);
add_addr_ext(msg, dst, SADB_EXT_ADDRESS_DST, 0, 0);
add_addr_ext(msg, src, SADB_EXT_ADDRESS_SRC, 0, 0, FALSE);
add_addr_ext(msg, dst, SADB_EXT_ADDRESS_DST, 0, 0, FALSE);
if (pfkey_send(this, msg, &out, &len) != SUCCESS)
{
@@ -1919,9 +1920,9 @@ static status_t add_policy_internal(private_kernel_pfkey_ipsec_t *this,
req->sadb_x_ipsecrequest_level = IPSEC_LEVEL_UNIQUE;
if (ipsec->cfg.mode == MODE_TUNNEL)
{
len = hostcpy(req + 1, ipsec->src);
len = hostcpy(req + 1, ipsec->src, FALSE);
req->sadb_x_ipsecrequest_len += len;
len = hostcpy((char*)(req + 1) + len, ipsec->dst);
len = hostcpy((char*)(req + 1) + len, ipsec->dst, FALSE);
req->sadb_x_ipsecrequest_len += len;
}
@@ -1929,9 +1930,9 @@ static status_t add_policy_internal(private_kernel_pfkey_ipsec_t *this,
PFKEY_EXT_ADD(msg, pol);
add_addr_ext(msg, policy->src.net, SADB_EXT_ADDRESS_SRC, policy->src.proto,
policy->src.mask);
policy->src.mask, TRUE);
add_addr_ext(msg, policy->dst.net, SADB_EXT_ADDRESS_DST, policy->dst.proto,
policy->dst.mask);
policy->dst.mask, TRUE);
#ifdef __FreeBSD__
{ /* on FreeBSD a lifetime has to be defined to be able to later query
@@ -2195,9 +2196,9 @@ METHOD(kernel_ipsec_t, query_policy, status_t,
PFKEY_EXT_ADD(msg, pol);
add_addr_ext(msg, policy->src.net, SADB_EXT_ADDRESS_SRC, policy->src.proto,
policy->src.mask);
policy->src.mask, TRUE);
add_addr_ext(msg, policy->dst.net, SADB_EXT_ADDRESS_DST, policy->dst.proto,
policy->dst.mask);
policy->dst.mask, TRUE);
this->mutex->unlock(this->mutex);
@@ -2339,9 +2340,9 @@ METHOD(kernel_ipsec_t, del_policy, status_t,
PFKEY_EXT_ADD(msg, pol);
add_addr_ext(msg, policy->src.net, SADB_EXT_ADDRESS_SRC, policy->src.proto,
policy->src.mask);
policy->src.mask, TRUE);
add_addr_ext(msg, policy->dst.net, SADB_EXT_ADDRESS_DST, policy->dst.proto,
policy->dst.mask);
policy->dst.mask, TRUE);
if (policy->route)
{