extern unsigned int policydb_loaded_version;
extern int selinux_nlmsg_lookup(u16 sclass, u16 nlmsg_type, u32 *perm);
-extern int selinux_compat_net;
extern struct security_operations *security_ops;
/* SECMARK reference count */
ssec->sid = SECINITSID_UNLABELED;
sk->sk_security = ssec;
- selinux_netlbl_sk_security_reset(ssec, family);
+ selinux_netlbl_sk_security_reset(ssec);
return 0;
}
static int selinux_revalidate_file_permission(struct file *file, int mask)
{
const struct cred *cred = current_cred();
- int rc;
struct inode *inode = file->f_path.dentry->d_inode;
if (!mask) {
if ((file->f_flags & O_APPEND) && (mask & MAY_WRITE))
mask |= MAY_APPEND;
- rc = file_has_perm(cred, file,
- file_mask_to_av(inode->i_mode, mask));
- if (rc)
- return rc;
-
- return selinux_netlbl_inode_permission(inode, mask);
+ return file_has_perm(cred, file,
+ file_mask_to_av(inode->i_mode, mask));
}
static int selinux_file_permission(struct file *file, int mask)
{
- struct inode *inode = file->f_path.dentry->d_inode;
- struct file_security_struct *fsec = file->f_security;
- struct inode_security_struct *isec = inode->i_security;
- u32 sid = current_sid();
-
- if (!mask) {
+ if (!mask)
/* No permission to check. Existence test. */
return 0;
- }
-
- if (sid == fsec->sid && fsec->isid == isec->sid
- && fsec->pseqno == avc_policy_seqno())
- return selinux_netlbl_inode_permission(inode, mask);
return selinux_revalidate_file_permission(file, mask);
}
sksec = sock->sk->sk_security;
sksec->sid = isec->sid;
sksec->sclass = isec->sclass;
- err = selinux_netlbl_socket_post_create(sock);
+ err = selinux_netlbl_socket_post_create(sock->sk, family);
}
return err;
static int selinux_socket_sendmsg(struct socket *sock, struct msghdr *msg,
int size)
{
- int rc;
-
- rc = socket_has_perm(current, sock, SOCKET__WRITE);
- if (rc)
- return rc;
-
- return selinux_netlbl_inode_permission(SOCK_INODE(sock), MAY_WRITE);
+ return socket_has_perm(current, sock, SOCKET__WRITE);
}
static int selinux_socket_recvmsg(struct socket *sock, struct msghdr *msg,
SECCLASS_NODE, NODE__RECVFROM, ad);
}
-static int selinux_sock_rcv_skb_iptables_compat(struct sock *sk,
- struct sk_buff *skb,
- struct avc_audit_data *ad,
- u16 family,
- char *addrp)
-{
- int err;
- struct sk_security_struct *sksec = sk->sk_security;
- u16 sk_class;
- u32 netif_perm, node_perm, recv_perm;
- u32 port_sid, node_sid, if_sid, sk_sid;
-
- sk_sid = sksec->sid;
- sk_class = sksec->sclass;
-
- switch (sk_class) {
- case SECCLASS_UDP_SOCKET:
- netif_perm = NETIF__UDP_RECV;
- node_perm = NODE__UDP_RECV;
- recv_perm = UDP_SOCKET__RECV_MSG;
- break;
- case SECCLASS_TCP_SOCKET:
- netif_perm = NETIF__TCP_RECV;
- node_perm = NODE__TCP_RECV;
- recv_perm = TCP_SOCKET__RECV_MSG;
- break;
- case SECCLASS_DCCP_SOCKET:
- netif_perm = NETIF__DCCP_RECV;
- node_perm = NODE__DCCP_RECV;
- recv_perm = DCCP_SOCKET__RECV_MSG;
- break;
- default:
- netif_perm = NETIF__RAWIP_RECV;
- node_perm = NODE__RAWIP_RECV;
- recv_perm = 0;
- break;
- }
-
- err = sel_netif_sid(skb->iif, &if_sid);
- if (err)
- return err;
- err = avc_has_perm(sk_sid, if_sid, SECCLASS_NETIF, netif_perm, ad);
- if (err)
- return err;
-
- err = sel_netnode_sid(addrp, family, &node_sid);
- if (err)
- return err;
- err = avc_has_perm(sk_sid, node_sid, SECCLASS_NODE, node_perm, ad);
- if (err)
- return err;
-
- if (!recv_perm)
- return 0;
- err = sel_netport_sid(sk->sk_protocol,
- ntohs(ad->u.net.sport), &port_sid);
- if (unlikely(err)) {
- printk(KERN_WARNING
- "SELinux: failure in"
- " selinux_sock_rcv_skb_iptables_compat(),"
- " network port label not found\n");
- return err;
- }
- return avc_has_perm(sk_sid, port_sid, sk_class, recv_perm, ad);
-}
-
static int selinux_sock_rcv_skb_compat(struct sock *sk, struct sk_buff *skb,
u16 family)
{
if (err)
return err;
- if (selinux_compat_net)
- err = selinux_sock_rcv_skb_iptables_compat(sk, skb, &ad,
- family, addrp);
- else if (selinux_secmark_enabled())
+ if (selinux_secmark_enabled()) {
err = avc_has_perm(sk_sid, skb->secmark, SECCLASS_PACKET,
PACKET__RECV, &ad);
- if (err)
- return err;
+ if (err)
+ return err;
+ }
if (selinux_policycap_netpeer) {
err = selinux_skb_peerlbl_sid(skb, family, &peer_sid);
* to the selinux_sock_rcv_skb_compat() function to deal with the
* special handling. We do this in an attempt to keep this function
* as fast and as clean as possible. */
- if (selinux_compat_net || !selinux_policycap_netpeer)
+ if (!selinux_policycap_netpeer)
return selinux_sock_rcv_skb_compat(sk, skb, family);
secmark_active = selinux_secmark_enabled();
newssec->peer_sid = ssec->peer_sid;
newssec->sclass = ssec->sclass;
- selinux_netlbl_sk_security_reset(newssec, newsk->sk_family);
+ selinux_netlbl_sk_security_reset(newssec);
}
static void selinux_sk_getsecid(struct sock *sk, u32 *secid)
if (peersid == SECSID_NULL) {
req->secid = sksec->sid;
req->peer_secid = SECSID_NULL;
- return 0;
+ } else {
+ err = security_sid_mls_copy(sksec->sid, peersid, &newsid);
+ if (err)
+ return err;
+ req->secid = newsid;
+ req->peer_secid = peersid;
}
- err = security_sid_mls_copy(sksec->sid, peersid, &newsid);
- if (err)
- return err;
-
- req->secid = newsid;
- req->peer_secid = peersid;
- return 0;
+ return selinux_netlbl_inet_conn_request(req, family);
}
static void selinux_inet_csk_clone(struct sock *newsk,
/* We don't need to take any sort of lock here as we are the only
* thread with access to newsksec */
- selinux_netlbl_sk_security_reset(newsksec, req->rsk_ops->family);
+ selinux_netlbl_inet_csk_clone(newsk, req->rsk_ops->family);
}
static void selinux_inet_conn_established(struct sock *sk, struct sk_buff *skb)
family = PF_INET;
selinux_skb_peerlbl_sid(skb, family, &sksec->peer_sid);
-
- selinux_netlbl_inet_conn_established(sk, family);
}
static void selinux_req_classify_flow(const struct request_sock *req,
return selinux_ip_output(skb, PF_INET);
}
-static int selinux_ip_postroute_iptables_compat(struct sock *sk,
- int ifindex,
- struct avc_audit_data *ad,
- u16 family, char *addrp)
-{
- int err;
- struct sk_security_struct *sksec = sk->sk_security;
- u16 sk_class;
- u32 netif_perm, node_perm, send_perm;
- u32 port_sid, node_sid, if_sid, sk_sid;
-
- sk_sid = sksec->sid;
- sk_class = sksec->sclass;
-
- switch (sk_class) {
- case SECCLASS_UDP_SOCKET:
- netif_perm = NETIF__UDP_SEND;
- node_perm = NODE__UDP_SEND;
- send_perm = UDP_SOCKET__SEND_MSG;
- break;
- case SECCLASS_TCP_SOCKET:
- netif_perm = NETIF__TCP_SEND;
- node_perm = NODE__TCP_SEND;
- send_perm = TCP_SOCKET__SEND_MSG;
- break;
- case SECCLASS_DCCP_SOCKET:
- netif_perm = NETIF__DCCP_SEND;
- node_perm = NODE__DCCP_SEND;
- send_perm = DCCP_SOCKET__SEND_MSG;
- break;
- default:
- netif_perm = NETIF__RAWIP_SEND;
- node_perm = NODE__RAWIP_SEND;
- send_perm = 0;
- break;
- }
-
- err = sel_netif_sid(ifindex, &if_sid);
- if (err)
- return err;
- err = avc_has_perm(sk_sid, if_sid, SECCLASS_NETIF, netif_perm, ad);
- return err;
-
- err = sel_netnode_sid(addrp, family, &node_sid);
- if (err)
- return err;
- err = avc_has_perm(sk_sid, node_sid, SECCLASS_NODE, node_perm, ad);
- if (err)
- return err;
-
- if (send_perm != 0)
- return 0;
-
- err = sel_netport_sid(sk->sk_protocol,
- ntohs(ad->u.net.dport), &port_sid);
- if (unlikely(err)) {
- printk(KERN_WARNING
- "SELinux: failure in"
- " selinux_ip_postroute_iptables_compat(),"
- " network port label not found\n");
- return err;
- }
- return avc_has_perm(sk_sid, port_sid, sk_class, send_perm, ad);
-}
-
static unsigned int selinux_ip_postroute_compat(struct sk_buff *skb,
int ifindex,
u16 family)
if (selinux_parse_skb(skb, &ad, &addrp, 0, &proto))
return NF_DROP;
- if (selinux_compat_net) {
- if (selinux_ip_postroute_iptables_compat(skb->sk, ifindex,
- &ad, family, addrp))
- return NF_DROP;
- } else if (selinux_secmark_enabled()) {
+ if (selinux_secmark_enabled())
if (avc_has_perm(sksec->sid, skb->secmark,
SECCLASS_PACKET, PACKET__SEND, &ad))
return NF_DROP;
- }
if (selinux_policycap_netpeer)
if (selinux_xfrm_postroute_last(sksec->sid, skb, &ad, proto))
* to the selinux_ip_postroute_compat() function to deal with the
* special handling. We do this in an attempt to keep this function
* as fast and as clean as possible. */
- if (selinux_compat_net || !selinux_policycap_netpeer)
+ if (!selinux_policycap_netpeer)
return selinux_ip_postroute_compat(skb, ifindex, family);
#ifdef CONFIG_XFRM
/* If skb->dst->xfrm is non-NULL then the packet is undergoing an IPsec
Code Review / linux-3.10.git / blobdiff