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Added support for different policy types in kernel_netlink plugin.

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This commit is contained in:
Tobias Brunner
2010-09-02 19:04:19 +02:00
parent bd7a2f3bfc
commit 749d3cccaf
1 changed files with 48 additions and 44 deletions
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src/libhydra/plugins/kernel_netlink/kernel_netlink_ipsec.c
+48 -44
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@@ -1691,7 +1691,8 @@ METHOD(kernel_ipsec_t, add_policy, status_t,
policy_info->priority -= policy->sel.prefixlen_s * 10; policy_info->priority -= policy->sel.prefixlen_s * 10;
policy_info->priority -= policy->sel.proto ? 2 : 0; policy_info->priority -= policy->sel.proto ? 2 : 0;
policy_info->priority -= policy->sel.sport_mask ? 1 : 0; policy_info->priority -= policy->sel.sport_mask ? 1 : 0;
policy_info->action = XFRM_POLICY_ALLOW; policy_info->action = type != POLICY_DROP ? XFRM_POLICY_ALLOW
: XFRM_POLICY_BLOCK;
policy_info->share = XFRM_SHARE_ANY; policy_info->share = XFRM_SHARE_ANY;
this->mutex->unlock(this->mutex); this->mutex->unlock(this->mutex);
@@ -1706,56 +1707,59 @@ METHOD(kernel_ipsec_t, add_policy, status_t,
policy_info->lft.hard_use_expires_seconds = 0; policy_info->lft.hard_use_expires_seconds = 0;
struct rtattr *rthdr = XFRM_RTA(hdr, struct xfrm_userpolicy_info); struct rtattr *rthdr = XFRM_RTA(hdr, struct xfrm_userpolicy_info);
rthdr->rta_type = XFRMA_TMPL;
rthdr->rta_len = 0; /* actual length is set below */
struct xfrm_user_tmpl *tmpl = (struct xfrm_user_tmpl*)RTA_DATA(rthdr); if (type == POLICY_IPSEC)
struct {
u_int8_t proto;
bool use;
} protos[] = {
{ IPPROTO_COMP, ipcomp != IPCOMP_NONE },
{ IPPROTO_ESP, spi != 0 },
{ IPPROTO_AH, ah_spi != 0 },
};
for (i = 0; i < countof(protos); i++)
{ {
if (!protos[i].use) struct xfrm_user_tmpl *tmpl = (struct xfrm_user_tmpl*)RTA_DATA(rthdr);
struct {
u_int8_t proto;
bool use;
} protos[] = {
{ IPPROTO_COMP, ipcomp != IPCOMP_NONE },
{ IPPROTO_ESP, spi != 0 },
{ IPPROTO_AH, ah_spi != 0 },
};
rthdr->rta_type = XFRMA_TMPL;
rthdr->rta_len = 0; /* actual length is set below */
for (i = 0; i < countof(protos); i++)
{ {
continue; if (!protos[i].use)
{
continue;
}
rthdr->rta_len += RTA_LENGTH(sizeof(struct xfrm_user_tmpl));
hdr->nlmsg_len += RTA_LENGTH(sizeof(struct xfrm_user_tmpl));
if (hdr->nlmsg_len > sizeof(request))
{
return FAILED;
}
tmpl->reqid = reqid;
tmpl->id.proto = protos[i].proto;
tmpl->aalgos = tmpl->ealgos = tmpl->calgos = ~0;
tmpl->mode = mode2kernel(mode);
tmpl->optional = protos[i].proto == IPPROTO_COMP &&
direction != POLICY_OUT;
tmpl->family = src->get_family(src);
if (mode == MODE_TUNNEL)
{ /* only for tunnel mode */
host2xfrm(src, &tmpl->saddr);
host2xfrm(dst, &tmpl->id.daddr);
}
tmpl++;
/* use transport mode for other SAs */
mode = MODE_TRANSPORT;
} }
rthdr->rta_len += RTA_LENGTH(sizeof(struct xfrm_user_tmpl)); rthdr = XFRM_RTA_NEXT(rthdr);
hdr->nlmsg_len += RTA_LENGTH(sizeof(struct xfrm_user_tmpl));
if (hdr->nlmsg_len > sizeof(request))
{
return FAILED;
}
tmpl->reqid = reqid;
tmpl->id.proto = protos[i].proto;
tmpl->aalgos = tmpl->ealgos = tmpl->calgos = ~0;
tmpl->mode = mode2kernel(mode);
tmpl->optional = protos[i].proto == IPPROTO_COMP &&
direction != POLICY_OUT;
tmpl->family = src->get_family(src);
if (mode == MODE_TUNNEL)
{ /* only for tunnel mode */
host2xfrm(src, &tmpl->saddr);
host2xfrm(dst, &tmpl->id.daddr);
}
tmpl++;
/* use transport mode for other SAs */
mode = MODE_TRANSPORT;
} }
rthdr = XFRM_RTA_NEXT(rthdr);
if (mark.value) if (mark.value)
{ {
struct xfrm_mark *mrk; struct xfrm_mark *mrk;