Merge commit 'v2.6.32' into reiserfs/kill-bkl

Merge-reason: The tree was based 2.6.31. It's better to be up to date
with 2.6.32. Although no conflicting changes were made in between,
it gives benchmarking results closer to the lastest kernel behaviour.

1 files changed, 231 insertions, 89 deletions

diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 8d8b69c5664e..bb230d5d7085 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -13,8 +13,8 @@
  *					   Eric Paris <eparis@redhat.com>
  *  Copyright (C) 2004-2005 Trusted Computer Solutions, Inc.
  *			    <dgoeddel@trustedcs.com>
- *  Copyright (C) 2006, 2007 Hewlett-Packard Development Company, L.P.
- *		Paul Moore <paul.moore@hp.com>
+ *  Copyright (C) 2006, 2007, 2009 Hewlett-Packard Development Company, L.P.
+ *	Paul Moore <paul.moore@hp.com>
  *  Copyright (C) 2007 Hitachi Software Engineering Co., Ltd.
  *		       Yuichi Nakamura <ynakam@hitachisoft.jp>
  *
@@ -448,6 +448,10 @@ static int sb_finish_set_opts(struct super_block *sb)
 	    sbsec->behavior > ARRAY_SIZE(labeling_behaviors))
 		sbsec->flags &= ~SE_SBLABELSUPP;
 
+	/* Special handling for sysfs. Is genfs but also has setxattr handler*/
+	if (strncmp(sb->s_type->name, "sysfs", sizeof("sysfs")) == 0)
+		sbsec->flags |= SE_SBLABELSUPP;
+
 	/* Initialize the root inode. */
 	rc = inode_doinit_with_dentry(root_inode, root);
 
@@ -1479,14 +1483,14 @@ static int task_has_capability(struct task_struct *tsk,
 			       const struct cred *cred,
 			       int cap, int audit)
 {
-	struct avc_audit_data ad;
+	struct common_audit_data ad;
 	struct av_decision avd;
 	u16 sclass;
 	u32 sid = cred_sid(cred);
 	u32 av = CAP_TO_MASK(cap);
 	int rc;
 
-	AVC_AUDIT_DATA_INIT(&ad, CAP);
+	COMMON_AUDIT_DATA_INIT(&ad, CAP);
 	ad.tsk = tsk;
 	ad.u.cap = cap;
 
@@ -1525,12 +1529,14 @@ static int task_has_system(struct task_struct *tsk,
 static int inode_has_perm(const struct cred *cred,
 			  struct inode *inode,
 			  u32 perms,
-			  struct avc_audit_data *adp)
+			  struct common_audit_data *adp)
 {
 	struct inode_security_struct *isec;
-	struct avc_audit_data ad;
+	struct common_audit_data ad;
 	u32 sid;
 
+	validate_creds(cred);
+
 	if (unlikely(IS_PRIVATE(inode)))
 		return 0;
 
@@ -1539,7 +1545,7 @@ static int inode_has_perm(const struct cred *cred,
 
 	if (!adp) {
 		adp = &ad;
-		AVC_AUDIT_DATA_INIT(&ad, FS);
+		COMMON_AUDIT_DATA_INIT(&ad, FS);
 		ad.u.fs.inode = inode;
 	}
 
@@ -1555,9 +1561,9 @@ static inline int dentry_has_perm(const struct cred *cred,
 				  u32 av)
 {
 	struct inode *inode = dentry->d_inode;
-	struct avc_audit_data ad;
+	struct common_audit_data ad;
 
-	AVC_AUDIT_DATA_INIT(&ad, FS);
+	COMMON_AUDIT_DATA_INIT(&ad, FS);
 	ad.u.fs.path.mnt = mnt;
 	ad.u.fs.path.dentry = dentry;
 	return inode_has_perm(cred, inode, av, &ad);
@@ -1577,11 +1583,11 @@ static int file_has_perm(const struct cred *cred,
 {
 	struct file_security_struct *fsec = file->f_security;
 	struct inode *inode = file->f_path.dentry->d_inode;
-	struct avc_audit_data ad;
+	struct common_audit_data ad;
 	u32 sid = cred_sid(cred);
 	int rc;
 
-	AVC_AUDIT_DATA_INIT(&ad, FS);
+	COMMON_AUDIT_DATA_INIT(&ad, FS);
 	ad.u.fs.path = file->f_path;
 
 	if (sid != fsec->sid) {
@@ -1612,7 +1618,7 @@ static int may_create(struct inode *dir,
 	struct inode_security_struct *dsec;
 	struct superblock_security_struct *sbsec;
 	u32 sid, newsid;
-	struct avc_audit_data ad;
+	struct common_audit_data ad;
 	int rc;
 
 	dsec = dir->i_security;
@@ -1621,7 +1627,7 @@ static int may_create(struct inode *dir,
 	sid = tsec->sid;
 	newsid = tsec->create_sid;
 
-	AVC_AUDIT_DATA_INIT(&ad, FS);
+	COMMON_AUDIT_DATA_INIT(&ad, FS);
 	ad.u.fs.path.dentry = dentry;
 
 	rc = avc_has_perm(sid, dsec->sid, SECCLASS_DIR,
@@ -1665,7 +1671,7 @@ static int may_link(struct inode *dir,
 
 {
 	struct inode_security_struct *dsec, *isec;
-	struct avc_audit_data ad;
+	struct common_audit_data ad;
 	u32 sid = current_sid();
 	u32 av;
 	int rc;
@@ -1673,7 +1679,7 @@ static int may_link(struct inode *dir,
 	dsec = dir->i_security;
 	isec = dentry->d_inode->i_security;
 
-	AVC_AUDIT_DATA_INIT(&ad, FS);
+	COMMON_AUDIT_DATA_INIT(&ad, FS);
 	ad.u.fs.path.dentry = dentry;
 
 	av = DIR__SEARCH;
@@ -1708,7 +1714,7 @@ static inline int may_rename(struct inode *old_dir,
 			     struct dentry *new_dentry)
 {
 	struct inode_security_struct *old_dsec, *new_dsec, *old_isec, *new_isec;
-	struct avc_audit_data ad;
+	struct common_audit_data ad;
 	u32 sid = current_sid();
 	u32 av;
 	int old_is_dir, new_is_dir;
@@ -1719,7 +1725,7 @@ static inline int may_rename(struct inode *old_dir,
 	old_is_dir = S_ISDIR(old_dentry->d_inode->i_mode);
 	new_dsec = new_dir->i_security;
 
-	AVC_AUDIT_DATA_INIT(&ad, FS);
+	COMMON_AUDIT_DATA_INIT(&ad, FS);
 
 	ad.u.fs.path.dentry = old_dentry;
 	rc = avc_has_perm(sid, old_dsec->sid, SECCLASS_DIR,
@@ -1761,7 +1767,7 @@ static inline int may_rename(struct inode *old_dir,
 static int superblock_has_perm(const struct cred *cred,
 			       struct super_block *sb,
 			       u32 perms,
-			       struct avc_audit_data *ad)
+			       struct common_audit_data *ad)
 {
 	struct superblock_security_struct *sbsec;
 	u32 sid = cred_sid(cred);
@@ -1855,12 +1861,12 @@ static inline u32 open_file_to_av(struct file *file)
 
 /* Hook functions begin here. */
 
-static int selinux_ptrace_may_access(struct task_struct *child,
+static int selinux_ptrace_access_check(struct task_struct *child,
 				     unsigned int mode)
 {
 	int rc;
 
-	rc = cap_ptrace_may_access(child, mode);
+	rc = cap_ptrace_access_check(child, mode);
 	if (rc)
 		return rc;
 
@@ -2101,7 +2107,7 @@ static int selinux_bprm_set_creds(struct linux_binprm *bprm)
 	const struct task_security_struct *old_tsec;
 	struct task_security_struct *new_tsec;
 	struct inode_security_struct *isec;
-	struct avc_audit_data ad;
+	struct common_audit_data ad;
 	struct inode *inode = bprm->file->f_path.dentry->d_inode;
 	int rc;
 
@@ -2139,7 +2145,7 @@ static int selinux_bprm_set_creds(struct linux_binprm *bprm)
 			return rc;
 	}
 
-	AVC_AUDIT_DATA_INIT(&ad, FS);
+	COMMON_AUDIT_DATA_INIT(&ad, FS);
 	ad.u.fs.path = bprm->file->f_path;
 
 	if (bprm->file->f_path.mnt->mnt_flags & MNT_NOSUID)
@@ -2232,7 +2238,7 @@ extern struct dentry *selinux_null;
 static inline void flush_unauthorized_files(const struct cred *cred,
 					    struct files_struct *files)
 {
-	struct avc_audit_data ad;
+	struct common_audit_data ad;
 	struct file *file, *devnull = NULL;
 	struct tty_struct *tty;
 	struct fdtable *fdt;
@@ -2266,7 +2272,7 @@ static inline void flush_unauthorized_files(const struct cred *cred,
 
 	/* Revalidate access to inherited open files. */
 
-	AVC_AUDIT_DATA_INIT(&ad, FS);
+	COMMON_AUDIT_DATA_INIT(&ad, FS);
 
 	spin_lock(&files->file_lock);
 	for (;;) {
@@ -2405,7 +2411,7 @@ static void selinux_bprm_committed_creds(struct linux_binprm *bprm)
 	/* Wake up the parent if it is waiting so that it can recheck
 	 * wait permission to the new task SID. */
 	read_lock(&tasklist_lock);
-	wake_up_interruptible(&current->real_parent->signal->wait_chldexit);
+	__wake_up_parent(current, current->real_parent);
 	read_unlock(&tasklist_lock);
 }
 
@@ -2515,7 +2521,7 @@ out:
 static int selinux_sb_kern_mount(struct super_block *sb, int flags, void *data)
 {
 	const struct cred *cred = current_cred();
-	struct avc_audit_data ad;
+	struct common_audit_data ad;
 	int rc;
 
 	rc = superblock_doinit(sb, data);
@@ -2526,7 +2532,7 @@ static int selinux_sb_kern_mount(struct super_block *sb, int flags, void *data)
 	if (flags & MS_KERNMOUNT)
 		return 0;
 
-	AVC_AUDIT_DATA_INIT(&ad, FS);
+	COMMON_AUDIT_DATA_INIT(&ad, FS);
 	ad.u.fs.path.dentry = sb->s_root;
 	return superblock_has_perm(cred, sb, FILESYSTEM__MOUNT, &ad);
 }
@@ -2534,9 +2540,9 @@ static int selinux_sb_kern_mount(struct super_block *sb, int flags, void *data)
 static int selinux_sb_statfs(struct dentry *dentry)
 {
 	const struct cred *cred = current_cred();
-	struct avc_audit_data ad;
+	struct common_audit_data ad;
 
-	AVC_AUDIT_DATA_INIT(&ad, FS);
+	COMMON_AUDIT_DATA_INIT(&ad, FS);
 	ad.u.fs.path.dentry = dentry->d_sb->s_root;
 	return superblock_has_perm(cred, dentry->d_sb, FILESYSTEM__GETATTR, &ad);
 }
@@ -2711,12 +2717,18 @@ static int selinux_inode_permission(struct inode *inode, int mask)
 static int selinux_inode_setattr(struct dentry *dentry, struct iattr *iattr)
 {
 	const struct cred *cred = current_cred();
+	unsigned int ia_valid = iattr->ia_valid;
+
+	/* ATTR_FORCE is just used for ATTR_KILL_S[UG]ID. */
+	if (ia_valid & ATTR_FORCE) {
+		ia_valid &= ~(ATTR_KILL_SUID | ATTR_KILL_SGID | ATTR_MODE |
+			      ATTR_FORCE);
+		if (!ia_valid)
+			return 0;
+	}
 
-	if (iattr->ia_valid & ATTR_FORCE)
-		return 0;
-
-	if (iattr->ia_valid & (ATTR_MODE | ATTR_UID | ATTR_GID |
-			       ATTR_ATIME_SET | ATTR_MTIME_SET))
+	if (ia_valid & (ATTR_MODE | ATTR_UID | ATTR_GID |
+			ATTR_ATIME_SET | ATTR_MTIME_SET | ATTR_TIMES_SET))
 		return dentry_has_perm(cred, NULL, dentry, FILE__SETATTR);
 
 	return dentry_has_perm(cred, NULL, dentry, FILE__WRITE);
@@ -2756,7 +2768,7 @@ static int selinux_inode_setxattr(struct dentry *dentry, const char *name,
 	struct inode *inode = dentry->d_inode;
 	struct inode_security_struct *isec = inode->i_security;
 	struct superblock_security_struct *sbsec;
-	struct avc_audit_data ad;
+	struct common_audit_data ad;
 	u32 newsid, sid = current_sid();
 	int rc = 0;
 
@@ -2770,7 +2782,7 @@ static int selinux_inode_setxattr(struct dentry *dentry, const char *name,
 	if (!is_owner_or_cap(inode))
 		return -EPERM;
 
-	AVC_AUDIT_DATA_INIT(&ad, FS);
+	COMMON_AUDIT_DATA_INIT(&ad, FS);
 	ad.u.fs.path.dentry = dentry;
 
 	rc = avc_has_perm(sid, isec->sid, isec->sclass,
@@ -2915,6 +2927,7 @@ static int selinux_inode_setsecurity(struct inode *inode, const char *name,
 		return rc;
 
 	isec->sid = newsid;
+	isec->initialized = 1;
 	return 0;
 }
 
@@ -2939,11 +2952,6 @@ static int selinux_revalidate_file_permission(struct file *file, int mask)
 	const struct cred *cred = current_cred();
 	struct inode *inode = file->f_path.dentry->d_inode;
 
-	if (!mask) {
-		/* No permission to check.  Existence test. */
-		return 0;
-	}
-
 	/* file_mask_to_av won't add FILE__WRITE if MAY_APPEND is set */
 	if ((file->f_flags & O_APPEND) && (mask & MAY_WRITE))
 		mask |= MAY_APPEND;
@@ -2954,10 +2962,20 @@ static int selinux_revalidate_file_permission(struct file *file, int 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)
 		/* No permission to check.  Existence test. */
 		return 0;
 
+	if (sid == fsec->sid && fsec->isid == isec->sid &&
+	    fsec->pseqno == avc_policy_seqno())
+		/* No change since dentry_open check. */
+		return 0;
+
 	return selinux_revalidate_file_permission(file, mask);
 }
 
@@ -3220,12 +3238,29 @@ static int selinux_task_create(unsigned long clone_flags)
 }
 
 /*
+ * allocate the SELinux part of blank credentials
+ */
+static int selinux_cred_alloc_blank(struct cred *cred, gfp_t gfp)
+{
+	struct task_security_struct *tsec;
+
+	tsec = kzalloc(sizeof(struct task_security_struct), gfp);
+	if (!tsec)
+		return -ENOMEM;
+
+	cred->security = tsec;
+	return 0;
+}
+
+/*
  * detach and free the LSM part of a set of credentials
  */
 static void selinux_cred_free(struct cred *cred)
 {
 	struct task_security_struct *tsec = cred->security;
-	cred->security = NULL;
+
+	BUG_ON((unsigned long) cred->security < PAGE_SIZE);
+	cred->security = (void *) 0x7UL;
 	kfree(tsec);
 }
 
@@ -3249,6 +3284,17 @@ static int selinux_cred_prepare(struct cred *new, const struct cred *old,
 }
 
 /*
+ * transfer the SELinux data to a blank set of creds
+ */
+static void selinux_cred_transfer(struct cred *new, const struct cred *old)
+{
+	const struct task_security_struct *old_tsec = old->security;
+	struct task_security_struct *tsec = new->security;
+
+	*tsec = *old_tsec;
+}
+
+/*
  * set the security data for a kernel service
  * - all the creation contexts are set to unlabelled
  */
@@ -3292,6 +3338,11 @@ static int selinux_kernel_create_files_as(struct cred *new, struct inode *inode)
 	return 0;
 }
 
+static int selinux_kernel_module_request(void)
+{
+	return task_has_system(current, SYSTEM__MODULE_REQUEST);
+}
+
 static int selinux_task_setpgid(struct task_struct *p, pid_t pgid)
 {
 	return current_has_perm(p, PROCESS__SETPGID);
@@ -3409,7 +3460,7 @@ static void selinux_task_to_inode(struct task_struct *p,
 
 /* Returns error only if unable to parse addresses */
 static int selinux_parse_skb_ipv4(struct sk_buff *skb,
-			struct avc_audit_data *ad, u8 *proto)
+			struct common_audit_data *ad, u8 *proto)
 {
 	int offset, ihlen, ret = -EINVAL;
 	struct iphdr _iph, *ih;
@@ -3490,7 +3541,7 @@ out:
 
 /* Returns error only if unable to parse addresses */
 static int selinux_parse_skb_ipv6(struct sk_buff *skb,
-			struct avc_audit_data *ad, u8 *proto)
+			struct common_audit_data *ad, u8 *proto)
 {
 	u8 nexthdr;
 	int ret = -EINVAL, offset;
@@ -3561,7 +3612,7 @@ out:
 
 #endif /* IPV6 */
 
-static int selinux_parse_skb(struct sk_buff *skb, struct avc_audit_data *ad,
+static int selinux_parse_skb(struct sk_buff *skb, struct common_audit_data *ad,
 			     char **_addrp, int src, u8 *proto)
 {
 	char *addrp;
@@ -3643,7 +3694,7 @@ static int socket_has_perm(struct task_struct *task, struct socket *sock,
 			   u32 perms)
 {
 	struct inode_security_struct *isec;
-	struct avc_audit_data ad;
+	struct common_audit_data ad;
 	u32 sid;
 	int err = 0;
 
@@ -3653,7 +3704,7 @@ static int socket_has_perm(struct task_struct *task, struct socket *sock,
 		goto out;
 	sid = task_sid(task);
 
-	AVC_AUDIT_DATA_INIT(&ad, NET);
+	COMMON_AUDIT_DATA_INIT(&ad, NET);
 	ad.u.net.sk = sock->sk;
 	err = avc_has_perm(sid, isec->sid, isec->sclass, perms, &ad);
 
@@ -3740,7 +3791,7 @@ static int selinux_socket_bind(struct socket *sock, struct sockaddr *address, in
 	if (family == PF_INET || family == PF_INET6) {
 		char *addrp;
 		struct inode_security_struct *isec;
-		struct avc_audit_data ad;
+		struct common_audit_data ad;
 		struct sockaddr_in *addr4 = NULL;
 		struct sockaddr_in6 *addr6 = NULL;
 		unsigned short snum;
@@ -3769,7 +3820,7 @@ static int selinux_socket_bind(struct socket *sock, struct sockaddr *address, in
 						      snum, &sid);
 				if (err)
 					goto out;
-				AVC_AUDIT_DATA_INIT(&ad, NET);
+				COMMON_AUDIT_DATA_INIT(&ad, NET);
 				ad.u.net.sport = htons(snum);
 				ad.u.net.family = family;
 				err = avc_has_perm(isec->sid, sid,
@@ -3802,7 +3853,7 @@ static int selinux_socket_bind(struct socket *sock, struct sockaddr *address, in
 		if (err)
 			goto out;
 
-		AVC_AUDIT_DATA_INIT(&ad, NET);
+		COMMON_AUDIT_DATA_INIT(&ad, NET);
 		ad.u.net.sport = htons(snum);
 		ad.u.net.family = family;
 
@@ -3836,7 +3887,7 @@ static int selinux_socket_connect(struct socket *sock, struct sockaddr *address,
 	isec = SOCK_INODE(sock)->i_security;
 	if (isec->sclass == SECCLASS_TCP_SOCKET ||
 	    isec->sclass == SECCLASS_DCCP_SOCKET) {
-		struct avc_audit_data ad;
+		struct common_audit_data ad;
 		struct sockaddr_in *addr4 = NULL;
 		struct sockaddr_in6 *addr6 = NULL;
 		unsigned short snum;
@@ -3861,7 +3912,7 @@ static int selinux_socket_connect(struct socket *sock, struct sockaddr *address,
 		perm = (isec->sclass == SECCLASS_TCP_SOCKET) ?
 		       TCP_SOCKET__NAME_CONNECT : DCCP_SOCKET__NAME_CONNECT;
 
-		AVC_AUDIT_DATA_INIT(&ad, NET);
+		COMMON_AUDIT_DATA_INIT(&ad, NET);
 		ad.u.net.dport = htons(snum);
 		ad.u.net.family = sk->sk_family;
 		err = avc_has_perm(isec->sid, sid, isec->sclass, perm, &ad);
@@ -3951,13 +4002,13 @@ static int selinux_socket_unix_stream_connect(struct socket *sock,
 	struct sk_security_struct *ssec;
 	struct inode_security_struct *isec;
 	struct inode_security_struct *other_isec;
-	struct avc_audit_data ad;
+	struct common_audit_data ad;
 	int err;
 
 	isec = SOCK_INODE(sock)->i_security;
 	other_isec = SOCK_INODE(other)->i_security;
 
-	AVC_AUDIT_DATA_INIT(&ad, NET);
+	COMMON_AUDIT_DATA_INIT(&ad, NET);
 	ad.u.net.sk = other->sk;
 
 	err = avc_has_perm(isec->sid, other_isec->sid,
@@ -3983,13 +4034,13 @@ static int selinux_socket_unix_may_send(struct socket *sock,
 {
 	struct inode_security_struct *isec;
 	struct inode_security_struct *other_isec;
-	struct avc_audit_data ad;
+	struct common_audit_data ad;
 	int err;
 
 	isec = SOCK_INODE(sock)->i_security;
 	other_isec = SOCK_INODE(other)->i_security;
 
-	AVC_AUDIT_DATA_INIT(&ad, NET);
+	COMMON_AUDIT_DATA_INIT(&ad, NET);
 	ad.u.net.sk = other->sk;
 
 	err = avc_has_perm(isec->sid, other_isec->sid,
@@ -4002,7 +4053,7 @@ static int selinux_socket_unix_may_send(struct socket *sock,
 
 static int selinux_inet_sys_rcv_skb(int ifindex, char *addrp, u16 family,
 				    u32 peer_sid,
-				    struct avc_audit_data *ad)
+				    struct common_audit_data *ad)
 {
 	int err;
 	u32 if_sid;
@@ -4030,10 +4081,10 @@ static int selinux_sock_rcv_skb_compat(struct sock *sk, struct sk_buff *skb,
 	struct sk_security_struct *sksec = sk->sk_security;
 	u32 peer_sid;
 	u32 sk_sid = sksec->sid;
-	struct avc_audit_data ad;
+	struct common_audit_data ad;
 	char *addrp;
 
-	AVC_AUDIT_DATA_INIT(&ad, NET);
+	COMMON_AUDIT_DATA_INIT(&ad, NET);
 	ad.u.net.netif = skb->iif;
 	ad.u.net.family = family;
 	err = selinux_parse_skb(skb, &ad, &addrp, 1, NULL);
@@ -4071,7 +4122,7 @@ static int selinux_socket_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
 	struct sk_security_struct *sksec = sk->sk_security;
 	u16 family = sk->sk_family;
 	u32 sk_sid = sksec->sid;
-	struct avc_audit_data ad;
+	struct common_audit_data ad;
 	char *addrp;
 	u8 secmark_active;
 	u8 peerlbl_active;
@@ -4095,7 +4146,7 @@ static int selinux_socket_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
 	if (!secmark_active && !peerlbl_active)
 		return 0;
 
-	AVC_AUDIT_DATA_INIT(&ad, NET);
+	COMMON_AUDIT_DATA_INIT(&ad, NET);
 	ad.u.net.netif = skb->iif;
 	ad.u.net.family = family;
 	err = selinux_parse_skb(skb, &ad, &addrp, 1, NULL);
@@ -4309,6 +4360,59 @@ static void selinux_req_classify_flow(const struct request_sock *req,
 	fl->secid = req->secid;
 }
 
+static int selinux_tun_dev_create(void)
+{
+	u32 sid = current_sid();
+
+	/* we aren't taking into account the "sockcreate" SID since the socket
+	 * that is being created here is not a socket in the traditional sense,
+	 * instead it is a private sock, accessible only to the kernel, and
+	 * representing a wide range of network traffic spanning multiple
+	 * connections unlike traditional sockets - check the TUN driver to
+	 * get a better understanding of why this socket is special */
+
+	return avc_has_perm(sid, sid, SECCLASS_TUN_SOCKET, TUN_SOCKET__CREATE,
+			    NULL);
+}
+
+static void selinux_tun_dev_post_create(struct sock *sk)
+{
+	struct sk_security_struct *sksec = sk->sk_security;
+
+	/* we don't currently perform any NetLabel based labeling here and it
+	 * isn't clear that we would want to do so anyway; while we could apply
+	 * labeling without the support of the TUN user the resulting labeled
+	 * traffic from the other end of the connection would almost certainly
+	 * cause confusion to the TUN user that had no idea network labeling
+	 * protocols were being used */
+
+	/* see the comments in selinux_tun_dev_create() about why we don't use
+	 * the sockcreate SID here */
+
+	sksec->sid = current_sid();
+	sksec->sclass = SECCLASS_TUN_SOCKET;
+}
+
+static int selinux_tun_dev_attach(struct sock *sk)
+{
+	struct sk_security_struct *sksec = sk->sk_security;
+	u32 sid = current_sid();
+	int err;
+
+	err = avc_has_perm(sid, sksec->sid, SECCLASS_TUN_SOCKET,
+			   TUN_SOCKET__RELABELFROM, NULL);
+	if (err)
+		return err;
+	err = avc_has_perm(sid, sid, SECCLASS_TUN_SOCKET,
+			   TUN_SOCKET__RELABELTO, NULL);
+	if (err)
+		return err;
+
+	sksec->sid = sid;
+
+	return 0;
+}
+
 static int selinux_nlmsg_perm(struct sock *sk, struct sk_buff *skb)
 {
 	int err = 0;
@@ -4353,7 +4457,7 @@ static unsigned int selinux_ip_forward(struct sk_buff *skb, int ifindex,
 	int err;
 	char *addrp;
 	u32 peer_sid;
-	struct avc_audit_data ad;
+	struct common_audit_data ad;
 	u8 secmark_active;
 	u8 netlbl_active;
 	u8 peerlbl_active;
@@ -4370,7 +4474,7 @@ static unsigned int selinux_ip_forward(struct sk_buff *skb, int ifindex,
 	if (selinux_skb_peerlbl_sid(skb, family, &peer_sid) != 0)
 		return NF_DROP;
 
-	AVC_AUDIT_DATA_INIT(&ad, NET);
+	COMMON_AUDIT_DATA_INIT(&ad, NET);
 	ad.u.net.netif = ifindex;
 	ad.u.net.family = family;
 	if (selinux_parse_skb(skb, &ad, &addrp, 1, NULL) != 0)
@@ -4458,7 +4562,7 @@ static unsigned int selinux_ip_postroute_compat(struct sk_buff *skb,
 {
 	struct sock *sk = skb->sk;
 	struct sk_security_struct *sksec;
-	struct avc_audit_data ad;
+	struct common_audit_data ad;
 	char *addrp;
 	u8 proto;
 
@@ -4466,7 +4570,7 @@ static unsigned int selinux_ip_postroute_compat(struct sk_buff *skb,
 		return NF_ACCEPT;
 	sksec = sk->sk_security;
 
-	AVC_AUDIT_DATA_INIT(&ad, NET);
+	COMMON_AUDIT_DATA_INIT(&ad, NET);
 	ad.u.net.netif = ifindex;
 	ad.u.net.family = family;
 	if (selinux_parse_skb(skb, &ad, &addrp, 0, &proto))
@@ -4490,7 +4594,7 @@ static unsigned int selinux_ip_postroute(struct sk_buff *skb, int ifindex,
 	u32 secmark_perm;
 	u32 peer_sid;
 	struct sock *sk;
-	struct avc_audit_data ad;
+	struct common_audit_data ad;
 	char *addrp;
 	u8 secmark_active;
 	u8 peerlbl_active;
@@ -4549,7 +4653,7 @@ static unsigned int selinux_ip_postroute(struct sk_buff *skb, int ifindex,
 		secmark_perm = PACKET__SEND;
 	}
 
-	AVC_AUDIT_DATA_INIT(&ad, NET);
+	COMMON_AUDIT_DATA_INIT(&ad, NET);
 	ad.u.net.netif = ifindex;
 	ad.u.net.family = family;
 	if (selinux_parse_skb(skb, &ad, &addrp, 0, NULL))
@@ -4619,13 +4723,13 @@ static int selinux_netlink_send(struct sock *sk, struct sk_buff *skb)
 static int selinux_netlink_recv(struct sk_buff *skb, int capability)
 {
 	int err;
-	struct avc_audit_data ad;
+	struct common_audit_data ad;
 
 	err = cap_netlink_recv(skb, capability);
 	if (err)
 		return err;
 
-	AVC_AUDIT_DATA_INIT(&ad, CAP);
+	COMMON_AUDIT_DATA_INIT(&ad, CAP);
 	ad.u.cap = capability;
 
 	return avc_has_perm(NETLINK_CB(skb).sid, NETLINK_CB(skb).sid,
@@ -4684,12 +4788,12 @@ static int ipc_has_perm(struct kern_ipc_perm *ipc_perms,
 			u32 perms)
 {
 	struct ipc_security_struct *isec;
-	struct avc_audit_data ad;
+	struct common_audit_data ad;
 	u32 sid = current_sid();
 
 	isec = ipc_perms->security;
 
-	AVC_AUDIT_DATA_INIT(&ad, IPC);
+	COMMON_AUDIT_DATA_INIT(&ad, IPC);
 	ad.u.ipc_id = ipc_perms->key;
 
 	return avc_has_perm(sid, isec->sid, isec->sclass, perms, &ad);
@@ -4709,7 +4813,7 @@ static void selinux_msg_msg_free_security(struct msg_msg *msg)
 static int selinux_msg_queue_alloc_security(struct msg_queue *msq)
 {
 	struct ipc_security_struct *isec;
-	struct avc_audit_data ad;
+	struct common_audit_data ad;
 	u32 sid = current_sid();
 	int rc;
 
@@ -4719,7 +4823,7 @@ static int selinux_msg_queue_alloc_security(struct msg_queue *msq)
 
 	isec = msq->q_perm.security;
 
-	AVC_AUDIT_DATA_INIT(&ad, IPC);
+	COMMON_AUDIT_DATA_INIT(&ad, IPC);
 	ad.u.ipc_id = msq->q_perm.key;
 
 	rc = avc_has_perm(sid, isec->sid, SECCLASS_MSGQ,
@@ -4739,12 +4843,12 @@ static void selinux_msg_queue_free_security(struct msg_queue *msq)
 static int selinux_msg_queue_associate(struct msg_queue *msq, int msqflg)
 {
 	struct ipc_security_struct *isec;
-	struct avc_audit_data ad;
+	struct common_audit_data ad;
 	u32 sid = current_sid();
 
 	isec = msq->q_perm.security;
 
-	AVC_AUDIT_DATA_INIT(&ad, IPC);
+	COMMON_AUDIT_DATA_INIT(&ad, IPC);
 	ad.u.ipc_id = msq->q_perm.key;
 
 	return avc_has_perm(sid, isec->sid, SECCLASS_MSGQ,
@@ -4783,7 +4887,7 @@ static int selinux_msg_queue_msgsnd(struct msg_queue *msq, struct msg_msg *msg,
 {
 	struct ipc_security_struct *isec;
 	struct msg_security_struct *msec;
-	struct avc_audit_data ad;
+	struct common_audit_data ad;
 	u32 sid = current_sid();
 	int rc;
 
@@ -4804,7 +4908,7 @@ static int selinux_msg_queue_msgsnd(struct msg_queue *msq, struct msg_msg *msg,
 			return rc;
 	}
 
-	AVC_AUDIT_DATA_INIT(&ad, IPC);
+	COMMON_AUDIT_DATA_INIT(&ad, IPC);
 	ad.u.ipc_id = msq->q_perm.key;
 
 	/* Can this process write to the queue? */
@@ -4828,14 +4932,14 @@ static int selinux_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
 {
 	struct ipc_security_struct *isec;
 	struct msg_security_struct *msec;
-	struct avc_audit_data ad;
+	struct common_audit_data ad;
 	u32 sid = task_sid(target);
 	int rc;
 
 	isec = msq->q_perm.security;
 	msec = msg->security;
 
-	AVC_AUDIT_DATA_INIT(&ad, IPC);
+	COMMON_AUDIT_DATA_INIT(&ad, IPC);
 	ad.u.ipc_id = msq->q_perm.key;
 
 	rc = avc_has_perm(sid, isec->sid,
@@ -4850,7 +4954,7 @@ static int selinux_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
 static int selinux_shm_alloc_security(struct shmid_kernel *shp)
 {
 	struct ipc_security_struct *isec;
-	struct avc_audit_data ad;
+	struct common_audit_data ad;
 	u32 sid = current_sid();
 	int rc;
 
@@ -4860,7 +4964,7 @@ static int selinux_shm_alloc_security(struct shmid_kernel *shp)
 
 	isec = shp->shm_perm.security;
 
-	AVC_AUDIT_DATA_INIT(&ad, IPC);
+	COMMON_AUDIT_DATA_INIT(&ad, IPC);
 	ad.u.ipc_id = shp->shm_perm.key;
 
 	rc = avc_has_perm(sid, isec->sid, SECCLASS_SHM,
@@ -4880,12 +4984,12 @@ static void selinux_shm_free_security(struct shmid_kernel *shp)
 static int selinux_shm_associate(struct shmid_kernel *shp, int shmflg)
 {
 	struct ipc_security_struct *isec;
-	struct avc_audit_data ad;
+	struct common_audit_data ad;
 	u32 sid = current_sid();
 
 	isec = shp->shm_perm.security;
 
-	AVC_AUDIT_DATA_INIT(&ad, IPC);
+	COMMON_AUDIT_DATA_INIT(&ad, IPC);
 	ad.u.ipc_id = shp->shm_perm.key;
 
 	return avc_has_perm(sid, isec->sid, SECCLASS_SHM,
@@ -4942,7 +5046,7 @@ static int selinux_shm_shmat(struct shmid_kernel *shp,
 static int selinux_sem_alloc_security(struct sem_array *sma)
 {
 	struct ipc_security_struct *isec;
-	struct avc_audit_data ad;
+	struct common_audit_data ad;
 	u32 sid = current_sid();
 	int rc;
 
@@ -4952,7 +5056,7 @@ static int selinux_sem_alloc_security(struct sem_array *sma)
 
 	isec = sma->sem_perm.security;
 
-	AVC_AUDIT_DATA_INIT(&ad, IPC);
+	COMMON_AUDIT_DATA_INIT(&ad, IPC);
 	ad.u.ipc_id = sma->sem_perm.key;
 
 	rc = avc_has_perm(sid, isec->sid, SECCLASS_SEM,
@@ -4972,12 +5076,12 @@ static void selinux_sem_free_security(struct sem_array *sma)
 static int selinux_sem_associate(struct sem_array *sma, int semflg)
 {
 	struct ipc_security_struct *isec;
-	struct avc_audit_data ad;
+	struct common_audit_data ad;
 	u32 sid = current_sid();
 
 	isec = sma->sem_perm.security;
 
-	AVC_AUDIT_DATA_INIT(&ad, IPC);
+	COMMON_AUDIT_DATA_INIT(&ad, IPC);
 	ad.u.ipc_id = sma->sem_perm.key;
 
 	return avc_has_perm(sid, isec->sid, SECCLASS_SEM,
@@ -5195,7 +5299,7 @@ static int selinux_setprocattr(struct task_struct *p,
 
 		/* Only allow single threaded processes to change context */
 		error = -EPERM;
-		if (!is_single_threaded(p)) {
+		if (!current_is_single_threaded()) {
 			error = security_bounded_transition(tsec->sid, sid);
 			if (error)
 				goto abort_change;
@@ -5252,6 +5356,32 @@ static void selinux_release_secctx(char *secdata, u32 seclen)
 	kfree(secdata);
 }
 
+/*
+ *	called with inode->i_mutex locked
+ */
+static int selinux_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
+{
+	return selinux_inode_setsecurity(inode, XATTR_SELINUX_SUFFIX, ctx, ctxlen, 0);
+}
+
+/*
+ *	called with inode->i_mutex locked
+ */
+static int selinux_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
+{
+	return __vfs_setxattr_noperm(dentry, XATTR_NAME_SELINUX, ctx, ctxlen, 0);
+}
+
+static int selinux_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
+{
+	int len = 0;
+	len = selinux_inode_getsecurity(inode, XATTR_SELINUX_SUFFIX,
+						ctx, true);
+	if (len < 0)
+		return len;
+	*ctxlen = len;
+	return 0;
+}
 #ifdef CONFIG_KEYS
 
 static int selinux_key_alloc(struct key *k, const struct cred *cred,
@@ -5323,7 +5453,7 @@ static int selinux_key_getsecurity(struct key *key, char **_buffer)
 static struct security_operations selinux_ops = {
 	.name =				"selinux",
 
-	.ptrace_may_access =		selinux_ptrace_may_access,
+	.ptrace_access_check =		selinux_ptrace_access_check,
 	.ptrace_traceme =		selinux_ptrace_traceme,
 	.capget =			selinux_capget,
 	.capset =			selinux_capset,
@@ -5396,10 +5526,13 @@ static struct security_operations selinux_ops = {
 	.dentry_open =			selinux_dentry_open,
 
 	.task_create =			selinux_task_create,
+	.cred_alloc_blank =		selinux_cred_alloc_blank,
 	.cred_free =			selinux_cred_free,
 	.cred_prepare =			selinux_cred_prepare,
+	.cred_transfer =		selinux_cred_transfer,
 	.kernel_act_as =		selinux_kernel_act_as,
 	.kernel_create_files_as =	selinux_kernel_create_files_as,
+	.kernel_module_request =	selinux_kernel_module_request,
 	.task_setpgid =			selinux_task_setpgid,
 	.task_getpgid =			selinux_task_getpgid,
 	.task_getsid =			selinux_task_getsid,
@@ -5448,6 +5581,9 @@ static struct security_operations selinux_ops = {
 	.secid_to_secctx =		selinux_secid_to_secctx,
 	.secctx_to_secid =		selinux_secctx_to_secid,
 	.release_secctx =		selinux_release_secctx,
+	.inode_notifysecctx =		selinux_inode_notifysecctx,
+	.inode_setsecctx =		selinux_inode_setsecctx,
+	.inode_getsecctx =		selinux_inode_getsecctx,
 
 	.unix_stream_connect =		selinux_socket_unix_stream_connect,
 	.unix_may_send =		selinux_socket_unix_may_send,
@@ -5477,6 +5613,9 @@ static struct security_operations selinux_ops = {
 	.inet_csk_clone =		selinux_inet_csk_clone,
 	.inet_conn_established =	selinux_inet_conn_established,
 	.req_classify_flow =		selinux_req_classify_flow,
+	.tun_dev_create =		selinux_tun_dev_create,
+	.tun_dev_post_create = 		selinux_tun_dev_post_create,
+	.tun_dev_attach =		selinux_tun_dev_attach,
 
 #ifdef CONFIG_SECURITY_NETWORK_XFRM
 	.xfrm_policy_alloc_security =	selinux_xfrm_policy_alloc,
@@ -5691,6 +5830,9 @@ int selinux_disable(void)
 	selinux_disabled = 1;
 	selinux_enabled = 0;
 
+	/* Try to destroy the avc node cache */
+	avc_disable();
+
 	/* Reset security_ops to the secondary module, dummy or capability. */
 	security_ops = secondary_ops;