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audit: Add auditing to ipsec

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An audit message occurs when an ipsec SA
or ipsec policy is created/deleted.

Signed-off-by: Joy Latten <latten@austin.ibm.com>
Signed-off-by: James Morris <jmorris@namei.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Joy Latten
2006-11-27 13:11:54 -06:00
committed by David S. Miller
parent 95b99a670d
commit 161a09e737
7 changed files with 213 additions and 15 deletions
Download Patch File Download Diff File Expand all files Collapse all files

33
net/xfrm/xfrm_user.c
View File

@@ -31,6 +31,7 @@
#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
#include <linux/in6.h>
#endif
#include <linux/audit.h>
static int verify_one_alg(struct rtattr **xfrma, enum xfrm_attr_type_t type)
{
@@ -454,6 +455,9 @@ static int xfrm_add_sa(struct sk_buff *skb, struct nlmsghdr *nlh, void **xfrma)
else
err = xfrm_state_update(x);
xfrm_audit_log(NETLINK_CB(skb).loginuid, NETLINK_CB(skb).sid,
AUDIT_MAC_IPSEC_ADDSA, err ? 0 : 1, NULL, x);
if (err < 0) {
x->km.state = XFRM_STATE_DEAD;
__xfrm_state_put(x);
@@ -523,6 +527,10 @@ static int xfrm_del_sa(struct sk_buff *skb, struct nlmsghdr *nlh, void **xfrma)
}
err = xfrm_state_delete(x);
xfrm_audit_log(NETLINK_CB(skb).loginuid, NETLINK_CB(skb).sid,
AUDIT_MAC_IPSEC_DELSA, err ? 0 : 1, NULL, x);
if (err < 0)
goto out;
@@ -1030,6 +1038,9 @@ static int xfrm_add_policy(struct sk_buff *skb, struct nlmsghdr *nlh, void **xfr
* a type XFRM_MSG_UPDPOLICY - JHS */
excl = nlh->nlmsg_type == XFRM_MSG_NEWPOLICY;
err = xfrm_policy_insert(p->dir, xp, excl);
xfrm_audit_log(NETLINK_CB(skb).loginuid, NETLINK_CB(skb).sid,
AUDIT_MAC_IPSEC_DELSPD, err ? 0 : 1, xp, NULL);
if (err) {
security_xfrm_policy_free(xp);
kfree(xp);
@@ -1257,6 +1268,10 @@ static int xfrm_get_policy(struct sk_buff *skb, struct nlmsghdr *nlh, void **xfr
xp = xfrm_policy_bysel_ctx(type, p->dir, &p->sel, tmp.security, delete);
security_xfrm_policy_free(&tmp);
}
if (delete)
xfrm_audit_log(NETLINK_CB(skb).loginuid, NETLINK_CB(skb).sid,
AUDIT_MAC_IPSEC_DELSPD, (xp) ? 1 : 0, xp, NULL);
if (xp == NULL)
return -ENOENT;
@@ -1291,8 +1306,11 @@ static int xfrm_flush_sa(struct sk_buff *skb, struct nlmsghdr *nlh, void **xfrma
{
struct km_event c;
struct xfrm_usersa_flush *p = NLMSG_DATA(nlh);
struct xfrm_audit audit_info;
xfrm_state_flush(p->proto);
audit_info.loginuid = NETLINK_CB(skb).loginuid;
audit_info.secid = NETLINK_CB(skb).sid;
xfrm_state_flush(p->proto, &audit_info);
c.data.proto = p->proto;
c.event = nlh->nlmsg_type;
c.seq = nlh->nlmsg_seq;
@@ -1442,12 +1460,15 @@ static int xfrm_flush_policy(struct sk_buff *skb, struct nlmsghdr *nlh, void **x
struct km_event c;
u8 type = XFRM_POLICY_TYPE_MAIN;
int err;
struct xfrm_audit audit_info;
err = copy_from_user_policy_type(&type, (struct rtattr **)xfrma);
if (err)
return err;
xfrm_policy_flush(type);
audit_info.loginuid = NETLINK_CB(skb).loginuid;
audit_info.secid = NETLINK_CB(skb).sid;
xfrm_policy_flush(type, &audit_info);
c.data.type = type;
c.event = nlh->nlmsg_type;
c.seq = nlh->nlmsg_seq;
@@ -1502,6 +1523,9 @@ static int xfrm_add_pol_expire(struct sk_buff *skb, struct nlmsghdr *nlh, void *
err = 0;
if (up->hard) {
xfrm_policy_delete(xp, p->dir);
xfrm_audit_log(NETLINK_CB(skb).loginuid, NETLINK_CB(skb).sid,
AUDIT_MAC_IPSEC_DELSPD, 1, xp, NULL);
} else {
// reset the timers here?
printk("Dont know what to do with soft policy expire\n");
@@ -1533,8 +1557,11 @@ static int xfrm_add_sa_expire(struct sk_buff *skb, struct nlmsghdr *nlh, void **
goto out;
km_state_expired(x, ue->hard, current->pid);
if (ue->hard)
if (ue->hard) {
__xfrm_state_delete(x);
xfrm_audit_log(NETLINK_CB(skb).loginuid, NETLINK_CB(skb).sid,
AUDIT_MAC_IPSEC_DELSA, 1, NULL, x);
}
out:
spin_unlock_bh(&x->lock);
xfrm_state_put(x);