netlabel: Pass a family parameter to netlbl_skbuff_err().
This makes it possible to route the error to the appropriate
labelling engine. CALIPSO is far less verbose than CIPSO
when encountering a bogus packet, so there is no need for a
CALIPSO error handler.
Signed-off-by: Huw Davies <huw@codeweavers.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
diff --git a/include/net/netlabel.h b/include/net/netlabel.h
index e0e4ce8..d8a46a8 100644
--- a/include/net/netlabel.h
+++ b/include/net/netlabel.h
@@ -488,7 +488,7 @@
int netlbl_skbuff_getattr(const struct sk_buff *skb,
u16 family,
struct netlbl_lsm_secattr *secattr);
-void netlbl_skbuff_err(struct sk_buff *skb, int error, int gateway);
+void netlbl_skbuff_err(struct sk_buff *skb, u16 family, int error, int gateway);
/*
* LSM label mapping cache operations
diff --git a/net/netlabel/netlabel_kapi.c b/net/netlabel/netlabel_kapi.c
index c50a1c5..a42ce3c 100644
--- a/net/netlabel/netlabel_kapi.c
+++ b/net/netlabel/netlabel_kapi.c
@@ -1249,6 +1249,7 @@
/**
* netlbl_skbuff_err - Handle a LSM error on a sk_buff
* @skb: the packet
+ * @family: the family
* @error: the error code
* @gateway: true if host is acting as a gateway, false otherwise
*
@@ -1258,10 +1259,14 @@
* according to the packet's labeling protocol.
*
*/
-void netlbl_skbuff_err(struct sk_buff *skb, int error, int gateway)
+void netlbl_skbuff_err(struct sk_buff *skb, u16 family, int error, int gateway)
{
- if (cipso_v4_optptr(skb))
- cipso_v4_error(skb, error, gateway);
+ switch (family) {
+ case AF_INET:
+ if (cipso_v4_optptr(skb))
+ cipso_v4_error(skb, error, gateway);
+ break;
+ }
}
/**
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index cb7c5c8..51eafe5 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -4603,13 +4603,13 @@
err = selinux_inet_sys_rcv_skb(sock_net(sk), skb->skb_iif,
addrp, family, peer_sid, &ad);
if (err) {
- selinux_netlbl_err(skb, err, 0);
+ selinux_netlbl_err(skb, family, err, 0);
return err;
}
err = avc_has_perm(sk_sid, peer_sid, SECCLASS_PEER,
PEER__RECV, &ad);
if (err) {
- selinux_netlbl_err(skb, err, 0);
+ selinux_netlbl_err(skb, family, err, 0);
return err;
}
}
@@ -4977,7 +4977,7 @@
err = selinux_inet_sys_rcv_skb(dev_net(indev), indev->ifindex,
addrp, family, peer_sid, &ad);
if (err) {
- selinux_netlbl_err(skb, err, 1);
+ selinux_netlbl_err(skb, family, err, 1);
return NF_DROP;
}
}
diff --git a/security/selinux/include/netlabel.h b/security/selinux/include/netlabel.h
index 8c59b8f..75686d5 100644
--- a/security/selinux/include/netlabel.h
+++ b/security/selinux/include/netlabel.h
@@ -40,7 +40,8 @@
#ifdef CONFIG_NETLABEL
void selinux_netlbl_cache_invalidate(void);
-void selinux_netlbl_err(struct sk_buff *skb, int error, int gateway);
+void selinux_netlbl_err(struct sk_buff *skb, u16 family, int error,
+ int gateway);
void selinux_netlbl_sk_security_free(struct sk_security_struct *sksec);
void selinux_netlbl_sk_security_reset(struct sk_security_struct *sksec);
@@ -72,6 +73,7 @@
}
static inline void selinux_netlbl_err(struct sk_buff *skb,
+ u16 family,
int error,
int gateway)
{
diff --git a/security/selinux/netlabel.c b/security/selinux/netlabel.c
index ca220c3..dfca50d 100644
--- a/security/selinux/netlabel.c
+++ b/security/selinux/netlabel.c
@@ -151,9 +151,9 @@
* present on the packet, NetLabel is smart enough to only act when it should.
*
*/
-void selinux_netlbl_err(struct sk_buff *skb, int error, int gateway)
+void selinux_netlbl_err(struct sk_buff *skb, u16 family, int error, int gateway)
{
- netlbl_skbuff_err(skb, error, gateway);
+ netlbl_skbuff_err(skb, family, error, gateway);
}
/**
@@ -405,7 +405,7 @@
return 0;
if (nlbl_sid != SECINITSID_UNLABELED)
- netlbl_skbuff_err(skb, rc, 0);
+ netlbl_skbuff_err(skb, family, rc, 0);
return rc;
}
diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
index 11f7901..292fdea 100644
--- a/security/smack/smack_lsm.c
+++ b/security/smack/smack_lsm.c
@@ -3992,7 +3992,7 @@
rc = smk_bu_note("IPv4 delivery", skp, ssp->smk_in,
MAY_WRITE, rc);
if (rc != 0)
- netlbl_skbuff_err(skb, rc, 0);
+ netlbl_skbuff_err(skb, sk->sk_family, rc, 0);
break;
#if IS_ENABLED(CONFIG_IPV6)
case PF_INET6: