Merge branch 'master' of git://git.infradead.org/users/eparis/selinux into next

13 files changed, 434 insertions, 216 deletions

diff --git a/security/capability.c b/security/capability.c
index 2a5df2b7da83..ab3d807accc3 100644
--- a/security/capability.c
+++ b/security/capability.c
@@ -12,11 +12,6 @@
 
 #include <linux/security.h>
 
-static int cap_sysctl(ctl_table *table, int op)
-{
-	return 0;
-}
-
 static int cap_syslog(int type)
 {
 	return 0;
@@ -59,6 +54,11 @@ static int cap_sb_copy_data(char *orig, char *copy)
 	return 0;
 }
 
+static int cap_sb_remount(struct super_block *sb, void *data)
+{
+	return 0;
+}
+
 static int cap_sb_kern_mount(struct super_block *sb, int flags, void *data)
 {
 	return 0;
@@ -118,7 +118,8 @@ static void cap_inode_free_security(struct inode *inode)
 }
 
 static int cap_inode_init_security(struct inode *inode, struct inode *dir,
-				   char **name, void **value, size_t *len)
+				   const struct qstr *qstr, char **name,
+				   void **value, size_t *len)
 {
 	return -EOPNOTSUPP;
 }
@@ -880,7 +881,6 @@ void __init security_fixup_ops(struct security_operations *ops)
 	set_to_cap_if_null(ops, capable);
 	set_to_cap_if_null(ops, quotactl);
 	set_to_cap_if_null(ops, quota_on);
-	set_to_cap_if_null(ops, sysctl);
 	set_to_cap_if_null(ops, syslog);
 	set_to_cap_if_null(ops, settime);
 	set_to_cap_if_null(ops, vm_enough_memory);
@@ -892,6 +892,7 @@ void __init security_fixup_ops(struct security_operations *ops)
 	set_to_cap_if_null(ops, sb_alloc_security);
 	set_to_cap_if_null(ops, sb_free_security);
 	set_to_cap_if_null(ops, sb_copy_data);
+	set_to_cap_if_null(ops, sb_remount);
 	set_to_cap_if_null(ops, sb_kern_mount);
 	set_to_cap_if_null(ops, sb_show_options);
 	set_to_cap_if_null(ops, sb_statfs);
diff --git a/security/security.c b/security/security.c
index 1a4993b11446..47b8a447118f 100644
--- a/security/security.c
+++ b/security/security.c
@@ -181,11 +181,6 @@ int security_real_capable_noaudit(struct task_struct *tsk, int cap)
 	return ret;
 }
 
-int security_sysctl(struct ctl_table *table, int op)
-{
-	return security_ops->sysctl(table, op);
-}
-
 int security_quotactl(int cmds, int type, int id, struct super_block *sb)
 {
 	return security_ops->quotactl(cmds, type, id, sb);
@@ -271,6 +266,11 @@ int security_sb_copy_data(char *orig, char *copy)
 }
 EXPORT_SYMBOL(security_sb_copy_data);
 
+int security_sb_remount(struct super_block *sb, void *data)
+{
+	return security_ops->sb_remount(sb, data);
+}
+
 int security_sb_kern_mount(struct super_block *sb, int flags, void *data)
 {
 	return security_ops->sb_kern_mount(sb, flags, data);
@@ -335,11 +335,13 @@ void security_inode_free(struct inode *inode)
 }
 
 int security_inode_init_security(struct inode *inode, struct inode *dir,
-				  char **name, void **value, size_t *len)
+				 const struct qstr *qstr, char **name,
+				 void **value, size_t *len)
 {
 	if (unlikely(IS_PRIVATE(inode)))
 		return -EOPNOTSUPP;
-	return security_ops->inode_init_security(inode, dir, name, value, len);
+	return security_ops->inode_init_security(inode, dir, qstr, name, value,
+						 len);
 }
 EXPORT_SYMBOL(security_inode_init_security);
 
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index c8d699270687..d52a92507412 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -24,9 +24,11 @@
  */
 
 #include <linux/init.h>
+#include <linux/kd.h>
 #include <linux/kernel.h>
 #include <linux/tracehook.h>
 #include <linux/errno.h>
+#include <linux/ext2_fs.h>
 #include <linux/sched.h>
 #include <linux/security.h>
 #include <linux/xattr.h>
@@ -36,14 +38,15 @@
 #include <linux/mman.h>
 #include <linux/slab.h>
 #include <linux/pagemap.h>
+#include <linux/proc_fs.h>
 #include <linux/swap.h>
 #include <linux/spinlock.h>
 #include <linux/syscalls.h>
+#include <linux/dcache.h>
 #include <linux/file.h>
 #include <linux/fdtable.h>
 #include <linux/namei.h>
 #include <linux/mount.h>
-#include <linux/proc_fs.h>
 #include <linux/netfilter_ipv4.h>
 #include <linux/netfilter_ipv6.h>
 #include <linux/tty.h>
@@ -70,7 +73,6 @@
 #include <net/ipv6.h>
 #include <linux/hugetlb.h>
 #include <linux/personality.h>
-#include <linux/sysctl.h>
 #include <linux/audit.h>
 #include <linux/string.h>
 #include <linux/selinux.h>
@@ -1120,39 +1122,35 @@ static inline u16 socket_type_to_security_class(int family, int type, int protoc
 }
 
 #ifdef CONFIG_PROC_FS
-static int selinux_proc_get_sid(struct proc_dir_entry *de,
+static int selinux_proc_get_sid(struct dentry *dentry,
 				u16 tclass,
 				u32 *sid)
 {
-	int buflen, rc;
-	char *buffer, *path, *end;
+	int rc;
+	char *buffer, *path;
 
 	buffer = (char *)__get_free_page(GFP_KERNEL);
 	if (!buffer)
 		return -ENOMEM;
 
-	buflen = PAGE_SIZE;
-	end = buffer+buflen;
-	*--end = '\0';
-	buflen--;
-	path = end-1;
-	*path = '/';
-	while (de && de != de->parent) {
-		buflen -= de->namelen + 1;
-		if (buflen < 0)
-			break;
-		end -= de->namelen;
-		memcpy(end, de->name, de->namelen);
-		*--end = '/';
-		path = end;
-		de = de->parent;
+	path = dentry_path_raw(dentry, buffer, PAGE_SIZE);
+	if (IS_ERR(path))
+		rc = PTR_ERR(path);
+	else {
+		/* each process gets a /proc/PID/ entry. Strip off the
+		 * PID part to get a valid selinux labeling.
+		 * e.g. /proc/1/net/rpc/nfs -> /net/rpc/nfs */
+		while (path[1] >= '0' && path[1] <= '9') {
+			path[1] = '/';
+			path++;
+		}
+		rc = security_genfs_sid("proc", path, tclass, sid);
 	}
-	rc = security_genfs_sid("proc", path, tclass, sid);
 	free_page((unsigned long)buffer);
 	return rc;
 }
 #else
-static int selinux_proc_get_sid(struct proc_dir_entry *de,
+static int selinux_proc_get_sid(struct dentry *dentry,
 				u16 tclass,
 				u32 *sid)
 {
@@ -1300,10 +1298,8 @@ static int inode_doinit_with_dentry(struct inode *inode, struct dentry *opt_dent
 
 		/* Try to obtain a transition SID. */
 		isec->sclass = inode_mode_to_security_class(inode->i_mode);
-		rc = security_transition_sid(isec->task_sid,
-					     sbsec->sid,
-					     isec->sclass,
-					     &sid);
+		rc = security_transition_sid(isec->task_sid, sbsec->sid,
+					     isec->sclass, NULL, &sid);
 		if (rc)
 			goto out_unlock;
 		isec->sid = sid;
@@ -1316,10 +1312,9 @@ static int inode_doinit_with_dentry(struct inode *inode, struct dentry *opt_dent
 		isec->sid = sbsec->sid;
 
 		if ((sbsec->flags & SE_SBPROC) && !S_ISLNK(inode->i_mode)) {
-			struct proc_inode *proci = PROC_I(inode);
-			if (proci->pde) {
+			if (opt_dentry) {
 				isec->sclass = inode_mode_to_security_class(inode->i_mode);
-				rc = selinux_proc_get_sid(proci->pde,
+				rc = selinux_proc_get_sid(opt_dentry,
 							  isec->sclass,
 							  &sid);
 				if (rc)
@@ -1578,7 +1573,7 @@ static int may_create(struct inode *dir,
 		return rc;
 
 	if (!newsid || !(sbsec->flags & SE_SBLABELSUPP)) {
-		rc = security_transition_sid(sid, dsec->sid, tclass, &newsid);
+		rc = security_transition_sid(sid, dsec->sid, tclass, NULL, &newsid);
 		if (rc)
 			return rc;
 	}
@@ -1862,82 +1857,6 @@ static int selinux_capable(struct task_struct *tsk, const struct cred *cred,
 	return task_has_capability(tsk, cred, cap, audit);
 }
 
-static int selinux_sysctl_get_sid(ctl_table *table, u16 tclass, u32 *sid)
-{
-	int buflen, rc;
-	char *buffer, *path, *end;
-
-	rc = -ENOMEM;
-	buffer = (char *)__get_free_page(GFP_KERNEL);
-	if (!buffer)
-		goto out;
-
-	buflen = PAGE_SIZE;
-	end = buffer+buflen;
-	*--end = '\0';
-	buflen--;
-	path = end-1;
-	*path = '/';
-	while (table) {
-		const char *name = table->procname;
-		size_t namelen = strlen(name);
-		buflen -= namelen + 1;
-		if (buflen < 0)
-			goto out_free;
-		end -= namelen;
-		memcpy(end, name, namelen);
-		*--end = '/';
-		path = end;
-		table = table->parent;
-	}
-	buflen -= 4;
-	if (buflen < 0)
-		goto out_free;
-	end -= 4;
-	memcpy(end, "/sys", 4);
-	path = end;
-	rc = security_genfs_sid("proc", path, tclass, sid);
-out_free:
-	free_page((unsigned long)buffer);
-out:
-	return rc;
-}
-
-static int selinux_sysctl(ctl_table *table, int op)
-{
-	int error = 0;
-	u32 av;
-	u32 tsid, sid;
-	int rc;
-
-	sid = current_sid();
-
-	rc = selinux_sysctl_get_sid(table, (op == 0001) ?
-				    SECCLASS_DIR : SECCLASS_FILE, &tsid);
-	if (rc) {
-		/* Default to the well-defined sysctl SID. */
-		tsid = SECINITSID_SYSCTL;
-	}
-
-	/* The op values are "defined" in sysctl.c, thereby creating
-	 * a bad coupling between this module and sysctl.c */
-	if (op == 001) {
-		error = avc_has_perm(sid, tsid,
-				     SECCLASS_DIR, DIR__SEARCH, NULL);
-	} else {
-		av = 0;
-		if (op & 004)
-			av |= FILE__READ;
-		if (op & 002)
-			av |= FILE__WRITE;
-		if (av)
-			error = avc_has_perm(sid, tsid,
-					     SECCLASS_FILE, av, NULL);
-	}
-
-	return error;
-}
-
 static int selinux_quotactl(int cmds, int type, int id, struct super_block *sb)
 {
 	const struct cred *cred = current_cred();
@@ -2060,7 +1979,8 @@ static int selinux_bprm_set_creds(struct linux_binprm *bprm)
 	} else {
 		/* Check for a default transition on this program. */
 		rc = security_transition_sid(old_tsec->sid, isec->sid,
-					     SECCLASS_PROCESS, &new_tsec->sid);
+					     SECCLASS_PROCESS, NULL,
+					     &new_tsec->sid);
 		if (rc)
 			return rc;
 	}
@@ -2443,6 +2363,91 @@ out:
 	return rc;
 }
 
+static int selinux_sb_remount(struct super_block *sb, void *data)
+{
+	int rc, i, *flags;
+	struct security_mnt_opts opts;
+	char *secdata, **mount_options;
+	struct superblock_security_struct *sbsec = sb->s_security;
+
+	if (!(sbsec->flags & SE_SBINITIALIZED))
+		return 0;
+
+	if (!data)
+		return 0;
+
+	if (sb->s_type->fs_flags & FS_BINARY_MOUNTDATA)
+		return 0;
+
+	security_init_mnt_opts(&opts);
+	secdata = alloc_secdata();
+	if (!secdata)
+		return -ENOMEM;
+	rc = selinux_sb_copy_data(data, secdata);
+	if (rc)
+		goto out_free_secdata;
+
+	rc = selinux_parse_opts_str(secdata, &opts);
+	if (rc)
+		goto out_free_secdata;
+
+	mount_options = opts.mnt_opts;
+	flags = opts.mnt_opts_flags;
+
+	for (i = 0; i < opts.num_mnt_opts; i++) {
+		u32 sid;
+		size_t len;
+
+		if (flags[i] == SE_SBLABELSUPP)
+			continue;
+		len = strlen(mount_options[i]);
+		rc = security_context_to_sid(mount_options[i], len, &sid);
+		if (rc) {
+			printk(KERN_WARNING "SELinux: security_context_to_sid"
+			       "(%s) failed for (dev %s, type %s) errno=%d\n",
+			       mount_options[i], sb->s_id, sb->s_type->name, rc);
+			goto out_free_opts;
+		}
+		rc = -EINVAL;
+		switch (flags[i]) {
+		case FSCONTEXT_MNT:
+			if (bad_option(sbsec, FSCONTEXT_MNT, sbsec->sid, sid))
+				goto out_bad_option;
+			break;
+		case CONTEXT_MNT:
+			if (bad_option(sbsec, CONTEXT_MNT, sbsec->mntpoint_sid, sid))
+				goto out_bad_option;
+			break;
+		case ROOTCONTEXT_MNT: {
+			struct inode_security_struct *root_isec;
+			root_isec = sb->s_root->d_inode->i_security;
+
+			if (bad_option(sbsec, ROOTCONTEXT_MNT, root_isec->sid, sid))
+				goto out_bad_option;
+			break;
+		}
+		case DEFCONTEXT_MNT:
+			if (bad_option(sbsec, DEFCONTEXT_MNT, sbsec->def_sid, sid))
+				goto out_bad_option;
+			break;
+		default:
+			goto out_free_opts;
+		}
+	}
+
+	rc = 0;
+out_free_opts:
+	security_free_mnt_opts(&opts);
+out_free_secdata:
+	free_secdata(secdata);
+	return rc;
+out_bad_option:
+	printk(KERN_WARNING "SELinux: unable to change security options "
+	       "during remount (dev %s, type=%s)\n", sb->s_id,
+	       sb->s_type->name);
+	goto out_free_opts;
+}
+
 static int selinux_sb_kern_mount(struct super_block *sb, int flags, void *data)
 {
 	const struct cred *cred = current_cred();
@@ -2509,8 +2514,8 @@ static void selinux_inode_free_security(struct inode *inode)
 }
 
 static int selinux_inode_init_security(struct inode *inode, struct inode *dir,
-				       char **name, void **value,
-				       size_t *len)
+				       const struct qstr *qstr, char **name,
+				       void **value, size_t *len)
 {
 	const struct task_security_struct *tsec = current_security();
 	struct inode_security_struct *dsec;
@@ -2531,7 +2536,7 @@ static int selinux_inode_init_security(struct inode *inode, struct inode *dir,
 	else if (!newsid || !(sbsec->flags & SE_SBLABELSUPP)) {
 		rc = security_transition_sid(sid, dsec->sid,
 					     inode_mode_to_security_class(inode->i_mode),
-					     &newsid);
+					     qstr, &newsid);
 		if (rc) {
 			printk(KERN_WARNING "%s:  "
 			       "security_transition_sid failed, rc=%d (dev=%s "
@@ -2932,16 +2937,47 @@ static int selinux_file_ioctl(struct file *file, unsigned int cmd,
 			      unsigned long arg)
 {
 	const struct cred *cred = current_cred();
-	u32 av = 0;
+	int error = 0;
 
-	if (_IOC_DIR(cmd) & _IOC_WRITE)
-		av |= FILE__WRITE;
-	if (_IOC_DIR(cmd) & _IOC_READ)
-		av |= FILE__READ;
-	if (!av)
-		av = FILE__IOCTL;
+	switch (cmd) {
+	case FIONREAD:
+	/* fall through */
+	case FIBMAP:
+	/* fall through */
+	case FIGETBSZ:
+	/* fall through */
+	case EXT2_IOC_GETFLAGS:
+	/* fall through */
+	case EXT2_IOC_GETVERSION:
+		error = file_has_perm(cred, file, FILE__GETATTR);
+		break;
+
+	case EXT2_IOC_SETFLAGS:
+	/* fall through */
+	case EXT2_IOC_SETVERSION:
+		error = file_has_perm(cred, file, FILE__SETATTR);
+		break;
+
+	/* sys_ioctl() checks */
+	case FIONBIO:
+	/* fall through */
+	case FIOASYNC:
+		error = file_has_perm(cred, file, 0);
+		break;
 
-	return file_has_perm(cred, file, av);
+	case KDSKBENT:
+	case KDSKBSENT:
+		error = task_has_capability(current, cred, CAP_SYS_TTY_CONFIG,
+					    SECURITY_CAP_AUDIT);
+		break;
+
+	/* default case assumes that the command will go
+	 * to the file's ioctl() function.
+	 */
+	default:
+		error = file_has_perm(cred, file, FILE__IOCTL);
+	}
+	return error;
 }
 
 static int default_noexec;
@@ -3644,9 +3680,16 @@ static int selinux_skb_peerlbl_sid(struct sk_buff *skb, u16 family, u32 *sid)
 
 /* socket security operations */
 
-static u32 socket_sockcreate_sid(const struct task_security_struct *tsec)
+static int socket_sockcreate_sid(const struct task_security_struct *tsec,
+				 u16 secclass, u32 *socksid)
 {
-	return tsec->sockcreate_sid ? : tsec->sid;
+	if (tsec->sockcreate_sid > SECSID_NULL) {
+		*socksid = tsec->sockcreate_sid;
+		return 0;
+	}
+
+	return security_transition_sid(tsec->sid, tsec->sid, secclass, NULL,
+				       socksid);
 }
 
 static int sock_has_perm(struct task_struct *task, struct sock *sk, u32 perms)
@@ -3670,12 +3713,16 @@ static int selinux_socket_create(int family, int type,
 	const struct task_security_struct *tsec = current_security();
 	u32 newsid;
 	u16 secclass;
+	int rc;
 
 	if (kern)
 		return 0;
 
-	newsid = socket_sockcreate_sid(tsec);
 	secclass = socket_type_to_security_class(family, type, protocol);
+	rc = socket_sockcreate_sid(tsec, secclass, &newsid);
+	if (rc)
+		return rc;
+
 	return avc_has_perm(tsec->sid, newsid, secclass, SOCKET__CREATE, NULL);
 }
 
@@ -3687,12 +3734,16 @@ static int selinux_socket_post_create(struct socket *sock, int family,
 	struct sk_security_struct *sksec;
 	int err = 0;
 
+	isec->sclass = socket_type_to_security_class(family, type, protocol);
+
 	if (kern)
 		isec->sid = SECINITSID_KERNEL;
-	else
-		isec->sid = socket_sockcreate_sid(tsec);
+	else {
+		err = socket_sockcreate_sid(tsec, isec->sclass, &(isec->sid));
+		if (err)
+			return err;
+	}
 
-	isec->sclass = socket_type_to_security_class(family, type, protocol);
 	isec->initialized = 1;
 
 	if (sock->sk) {
@@ -4002,7 +4053,6 @@ static int selinux_sock_rcv_skb_compat(struct sock *sk, struct sk_buff *skb,
 {
 	int err = 0;
 	struct sk_security_struct *sksec = sk->sk_security;
-	u32 peer_sid;
 	u32 sk_sid = sksec->sid;
 	struct common_audit_data ad;
 	char *addrp;
@@ -4021,20 +4071,10 @@ static int selinux_sock_rcv_skb_compat(struct sock *sk, struct sk_buff *skb,
 			return err;
 	}
 
-	if (selinux_policycap_netpeer) {
-		err = selinux_skb_peerlbl_sid(skb, family, &peer_sid);
-		if (err)
-			return err;
-		err = avc_has_perm(sk_sid, peer_sid,
-				   SECCLASS_PEER, PEER__RECV, &ad);
-		if (err)
-			selinux_netlbl_err(skb, err, 0);
-	} else {
-		err = selinux_netlbl_sock_rcv_skb(sksec, skb, family, &ad);
-		if (err)
-			return err;
-		err = selinux_xfrm_sock_rcv_skb(sksec->sid, skb, &ad);
-	}
+	err = selinux_netlbl_sock_rcv_skb(sksec, skb, family, &ad);
+	if (err)
+		return err;
+	err = selinux_xfrm_sock_rcv_skb(sksec->sid, skb, &ad);
 
 	return err;
 }
@@ -4529,9 +4569,8 @@ static unsigned int selinux_ip_postroute_compat(struct sk_buff *skb,
 				 SECCLASS_PACKET, PACKET__SEND, &ad))
 			return NF_DROP_ERR(-ECONNREFUSED);
 
-	if (selinux_policycap_netpeer)
-		if (selinux_xfrm_postroute_last(sksec->sid, skb, &ad, proto))
-			return NF_DROP_ERR(-ECONNREFUSED);
+	if (selinux_xfrm_postroute_last(sksec->sid, skb, &ad, proto))
+		return NF_DROP_ERR(-ECONNREFUSED);
 
 	return NF_ACCEPT;
 }
@@ -4574,27 +4613,14 @@ static unsigned int selinux_ip_postroute(struct sk_buff *skb, int ifindex,
 	 * from the sending socket, otherwise use the kernel's sid */
 	sk = skb->sk;
 	if (sk == NULL) {
-		switch (family) {
-		case PF_INET:
-			if (IPCB(skb)->flags & IPSKB_FORWARDED)
-				secmark_perm = PACKET__FORWARD_OUT;
-			else
-				secmark_perm = PACKET__SEND;
-			break;
-		case PF_INET6:
-			if (IP6CB(skb)->flags & IP6SKB_FORWARDED)
-				secmark_perm = PACKET__FORWARD_OUT;
-			else
-				secmark_perm = PACKET__SEND;
-			break;
-		default:
-			return NF_DROP_ERR(-ECONNREFUSED);
-		}
-		if (secmark_perm == PACKET__FORWARD_OUT) {
+		if (skb->skb_iif) {
+			secmark_perm = PACKET__FORWARD_OUT;
 			if (selinux_skb_peerlbl_sid(skb, family, &peer_sid))
 				return NF_DROP;
-		} else
+		} else {
+			secmark_perm = PACKET__SEND;
 			peer_sid = SECINITSID_KERNEL;
+		}
 	} else {
 		struct sk_security_struct *sksec = sk->sk_security;
 		peer_sid = sksec->sid;
@@ -4848,7 +4874,7 @@ static int selinux_msg_queue_msgsnd(struct msg_queue *msq, struct msg_msg *msg,
 		 * message queue this message will be stored in
 		 */
 		rc = security_transition_sid(sid, isec->sid, SECCLASS_MSG,
-					     &msec->sid);
+					     NULL, &msec->sid);
 		if (rc)
 			return rc;
 	}
@@ -5402,7 +5428,6 @@ static struct security_operations selinux_ops = {
 	.ptrace_traceme =		selinux_ptrace_traceme,
 	.capget =			selinux_capget,
 	.capset =			selinux_capset,
-	.sysctl =			selinux_sysctl,
 	.capable =			selinux_capable,
 	.quotactl =			selinux_quotactl,
 	.quota_on =			selinux_quota_on,
@@ -5420,6 +5445,7 @@ static struct security_operations selinux_ops = {
 	.sb_alloc_security =		selinux_sb_alloc_security,
 	.sb_free_security =		selinux_sb_free_security,
 	.sb_copy_data =			selinux_sb_copy_data,
+	.sb_remount =			selinux_sb_remount,
 	.sb_kern_mount =		selinux_sb_kern_mount,
 	.sb_show_options =		selinux_sb_show_options,
 	.sb_statfs =			selinux_sb_statfs,
diff --git a/security/selinux/include/classmap.h b/security/selinux/include/classmap.h
index 7ed3663332ec..b8c53723e09b 100644
--- a/security/selinux/include/classmap.h
+++ b/security/selinux/include/classmap.h
@@ -12,6 +12,10 @@
 #define COMMON_IPC_PERMS "create", "destroy", "getattr", "setattr", "read", \
 	    "write", "associate", "unix_read", "unix_write"
 
+/*
+ * Note: The name for any socket class should be suffixed by "socket",
+ *	 and doesn't contain more than one substr of "socket".
+ */
 struct security_class_mapping secclass_map[] = {
 	{ "security",
 	  { "compute_av", "compute_create", "compute_member",
@@ -132,8 +136,7 @@ struct security_class_mapping secclass_map[] = {
 	{ "appletalk_socket",
 	  { COMMON_SOCK_PERMS, NULL } },
 	{ "packet",
-	  { "send", "recv", "relabelto", "flow_in", "flow_out",
-	    "forward_in", "forward_out", NULL } },
+	  { "send", "recv", "relabelto", "forward_in", "forward_out", NULL } },
 	{ "key",
 	  { "view", "read", "write", "search", "link", "setattr", "create",
 	    NULL } },
diff --git a/security/selinux/include/security.h b/security/selinux/include/security.h
index 671273eb1115..348eb00cb668 100644
--- a/security/selinux/include/security.h
+++ b/security/selinux/include/security.h
@@ -8,6 +8,7 @@
 #ifndef _SELINUX_SECURITY_H_
 #define _SELINUX_SECURITY_H_
 
+#include <linux/dcache.h>
 #include <linux/magic.h>
 #include <linux/types.h>
 #include "flask.h"
@@ -28,13 +29,14 @@
 #define POLICYDB_VERSION_POLCAP		22
 #define POLICYDB_VERSION_PERMISSIVE	23
 #define POLICYDB_VERSION_BOUNDARY	24
+#define POLICYDB_VERSION_FILENAME_TRANS	25
 
 /* Range of policy versions we understand*/
 #define POLICYDB_VERSION_MIN   POLICYDB_VERSION_BASE
 #ifdef CONFIG_SECURITY_SELINUX_POLICYDB_VERSION_MAX
 #define POLICYDB_VERSION_MAX	CONFIG_SECURITY_SELINUX_POLICYDB_VERSION_MAX_VALUE
 #else
-#define POLICYDB_VERSION_MAX	POLICYDB_VERSION_BOUNDARY
+#define POLICYDB_VERSION_MAX	POLICYDB_VERSION_FILENAME_TRANS
 #endif
 
 /* Mask for just the mount related flags */
@@ -106,8 +108,8 @@ void security_compute_av(u32 ssid, u32 tsid,
 void security_compute_av_user(u32 ssid, u32 tsid,
 			     u16 tclass, struct av_decision *avd);
 
-int security_transition_sid(u32 ssid, u32 tsid,
-			    u16 tclass, u32 *out_sid);
+int security_transition_sid(u32 ssid, u32 tsid, u16 tclass,
+			    const struct qstr *qstr, u32 *out_sid);
 
 int security_transition_sid_user(u32 ssid, u32 tsid,
 				 u16 tclass, u32 *out_sid);
diff --git a/security/selinux/ss/avtab.h b/security/selinux/ss/avtab.h
index 3417f9cc1cbd..63ce2f9e441d 100644
--- a/security/selinux/ss/avtab.h
+++ b/security/selinux/ss/avtab.h
@@ -14,7 +14,7 @@
  *
  * Copyright (C) 2003 Tresys Technology, LLC
  *	This program is free software; you can redistribute it and/or modify
- *  	it under the terms of the GNU General Public License as published by
+ *	it under the terms of the GNU General Public License as published by
  *	the Free Software Foundation, version 2.
  *
  * Updated: Yuichi Nakamura <ynakam@hitachisoft.jp>
@@ -27,16 +27,16 @@ struct avtab_key {
 	u16 source_type;	/* source type */
 	u16 target_type;	/* target type */
 	u16 target_class;	/* target object class */
-#define AVTAB_ALLOWED     1
-#define AVTAB_AUDITALLOW  2
-#define AVTAB_AUDITDENY   4
-#define AVTAB_AV         (AVTAB_ALLOWED | AVTAB_AUDITALLOW | AVTAB_AUDITDENY)
-#define AVTAB_TRANSITION 16
-#define AVTAB_MEMBER     32
-#define AVTAB_CHANGE     64
-#define AVTAB_TYPE       (AVTAB_TRANSITION | AVTAB_MEMBER | AVTAB_CHANGE)
-#define AVTAB_ENABLED_OLD    0x80000000 /* reserved for used in cond_avtab */
-#define AVTAB_ENABLED    0x8000 /* reserved for used in cond_avtab */
+#define AVTAB_ALLOWED		0x0001
+#define AVTAB_AUDITALLOW	0x0002
+#define AVTAB_AUDITDENY		0x0004
+#define AVTAB_AV		(AVTAB_ALLOWED | AVTAB_AUDITALLOW | AVTAB_AUDITDENY)
+#define AVTAB_TRANSITION	0x0010
+#define AVTAB_MEMBER		0x0020
+#define AVTAB_CHANGE		0x0040
+#define AVTAB_TYPE		(AVTAB_TRANSITION | AVTAB_MEMBER | AVTAB_CHANGE)
+#define AVTAB_ENABLED_OLD   0x80000000 /* reserved for used in cond_avtab */
+#define AVTAB_ENABLED		0x8000 /* reserved for used in cond_avtab */
 	u16 specified;	/* what field is specified */
 };
 
diff --git a/security/selinux/ss/mls.c b/security/selinux/ss/mls.c
index 1ef8e4e89880..e96174216bc9 100644
--- a/security/selinux/ss/mls.c
+++ b/security/selinux/ss/mls.c
@@ -512,7 +512,8 @@ int mls_compute_sid(struct context *scontext,
 		    struct context *tcontext,
 		    u16 tclass,
 		    u32 specified,
-		    struct context *newcontext)
+		    struct context *newcontext,
+		    bool sock)
 {
 	struct range_trans rtr;
 	struct mls_range *r;
@@ -531,7 +532,7 @@ int mls_compute_sid(struct context *scontext,
 			return mls_range_set(newcontext, r);
 		/* Fallthrough */
 	case AVTAB_CHANGE:
-		if (tclass == policydb.process_class)
+		if ((tclass == policydb.process_class) || (sock == true))
 			/* Use the process MLS attributes. */
 			return mls_context_cpy(newcontext, scontext);
 		else
diff --git a/security/selinux/ss/mls.h b/security/selinux/ss/mls.h
index cd9152632e54..037bf9d82d41 100644
--- a/security/selinux/ss/mls.h
+++ b/security/selinux/ss/mls.h
@@ -49,7 +49,8 @@ int mls_compute_sid(struct context *scontext,
 		    struct context *tcontext,
 		    u16 tclass,
 		    u32 specified,
-		    struct context *newcontext);
+		    struct context *newcontext,
+		    bool sock);
 
 int mls_setup_user_range(struct context *fromcon, struct user_datum *user,
 			 struct context *usercon);
diff --git a/security/selinux/ss/policydb.c b/security/selinux/ss/policydb.c
index 57363562f0f8..e7b850ad57ee 100644
--- a/security/selinux/ss/policydb.c
+++ b/security/selinux/ss/policydb.c
@@ -123,6 +123,11 @@ static struct policydb_compat_info policydb_compat[] = {
 		.sym_num	= SYM_NUM,
 		.ocon_num	= OCON_NUM,
 	},
+	{
+		.version	= POLICYDB_VERSION_FILENAME_TRANS,
+		.sym_num	= SYM_NUM,
+		.ocon_num	= OCON_NUM,
+	},
 };
 
 static struct policydb_compat_info *policydb_lookup_compat(int version)
@@ -704,6 +709,7 @@ void policydb_destroy(struct policydb *p)
 	int i;
 	struct role_allow *ra, *lra = NULL;
 	struct role_trans *tr, *ltr = NULL;
+	struct filename_trans *ft, *nft;
 
 	for (i = 0; i < SYM_NUM; i++) {
 		cond_resched();
@@ -781,6 +787,15 @@ void policydb_destroy(struct policydb *p)
 		}
 		flex_array_free(p->type_attr_map_array);
 	}
+
+	ft = p->filename_trans;
+	while (ft) {
+		nft = ft->next;
+		kfree(ft->name);
+		kfree(ft);
+		ft = nft;
+	}
+
 	ebitmap_destroy(&p->policycaps);
 	ebitmap_destroy(&p->permissive_map);
 
@@ -1788,6 +1803,76 @@ out:
 	return rc;
 }
 
+static int filename_trans_read(struct policydb *p, void *fp)
+{
+	struct filename_trans *ft, *last;
+	u32 nel, len;
+	char *name;
+	__le32 buf[4];
+	int rc, i;
+
+	if (p->policyvers < POLICYDB_VERSION_FILENAME_TRANS)
+		return 0;
+
+	rc = next_entry(buf, fp, sizeof(u32));
+	if (rc)
+		goto out;
+	nel = le32_to_cpu(buf[0]);
+
+	printk(KERN_ERR "%s: nel=%d\n", __func__, nel);
+
+	last = p->filename_trans;
+	while (last && last->next)
+		last = last->next;
+
+	for (i = 0; i < nel; i++) {
+		rc = -ENOMEM;
+		ft = kzalloc(sizeof(*ft), GFP_KERNEL);
+		if (!ft)
+			goto out;
+
+		/* add it to the tail of the list */
+		if (!last)
+			p->filename_trans = ft;
+		else
+			last->next = ft;
+		last = ft;
+
+		/* length of the path component string */
+		rc = next_entry(buf, fp, sizeof(u32));
+		if (rc)
+			goto out;
+		len = le32_to_cpu(buf[0]);
+
+		rc = -ENOMEM;
+		name = kmalloc(len + 1, GFP_KERNEL);
+		if (!name)
+			goto out;
+
+		ft->name = name;
+
+		/* path component string */
+		rc = next_entry(name, fp, len);
+		if (rc)
+			goto out;
+		name[len] = 0;
+
+		printk(KERN_ERR "%s: ft=%p ft->name=%p ft->name=%s\n", __func__, ft, ft->name, ft->name);
+
+		rc = next_entry(buf, fp, sizeof(u32) * 4);
+		if (rc)
+			goto out;
+
+		ft->stype = le32_to_cpu(buf[0]);
+		ft->ttype = le32_to_cpu(buf[1]);
+		ft->tclass = le32_to_cpu(buf[2]);
+		ft->otype = le32_to_cpu(buf[3]);
+	}
+	rc = 0;
+out:
+	return rc;
+}
+
 static int genfs_read(struct policydb *p, void *fp)
 {
 	int i, j, rc;
@@ -2251,6 +2336,10 @@ int policydb_read(struct policydb *p, void *fp)
 		lra = ra;
 	}
 
+	rc = filename_trans_read(p, fp);
+	if (rc)
+		goto bad;
+
 	rc = policydb_index(p);
 	if (rc)
 		goto bad;
@@ -3025,6 +3114,43 @@ static int range_write(struct policydb *p, void *fp)
 	return 0;
 }
 
+static int filename_trans_write(struct policydb *p, void *fp)
+{
+	struct filename_trans *ft;
+	u32 len, nel = 0;
+	__le32 buf[4];
+	int rc;
+
+	for (ft = p->filename_trans; ft; ft = ft->next)
+		nel++;
+
+	buf[0] = cpu_to_le32(nel);
+	rc = put_entry(buf, sizeof(u32), 1, fp);
+	if (rc)
+		return rc;
+
+	for (ft = p->filename_trans; ft; ft = ft->next) {
+		len = strlen(ft->name);
+		buf[0] = cpu_to_le32(len);
+		rc = put_entry(buf, sizeof(u32), 1, fp);
+		if (rc)
+			return rc;
+
+		rc = put_entry(ft->name, sizeof(char), len, fp);
+		if (rc)
+			return rc;
+
+		buf[0] = ft->stype;
+		buf[1] = ft->ttype;
+		buf[2] = ft->tclass;
+		buf[3] = ft->otype;
+
+		rc = put_entry(buf, sizeof(u32), 4, fp);
+		if (rc)
+			return rc;
+	}
+	return 0;
+}
 /*
  * Write the configuration data in a policy database
  * structure to a policy database binary representation
@@ -3135,6 +3261,10 @@ int policydb_write(struct policydb *p, void *fp)
 	if (rc)
 		return rc;
 
+	rc = filename_trans_write(p, fp);
+	if (rc)
+		return rc;
+
 	rc = ocontext_write(p, info, fp);
 	if (rc)
 		return rc;
diff --git a/security/selinux/ss/policydb.h b/security/selinux/ss/policydb.h
index 4e3ab9d0b315..732ea4a68682 100644
--- a/security/selinux/ss/policydb.h
+++ b/security/selinux/ss/policydb.h
@@ -77,6 +77,15 @@ struct role_trans {
 	struct role_trans *next;
 };
 
+struct filename_trans {
+	struct filename_trans *next;
+	u32 stype;		/* current process */
+	u32 ttype;		/* parent dir context */
+	u16 tclass;		/* class of new object */
+	const char *name;	/* last path component */
+	u32 otype;		/* expected of new object */
+};
+
 struct role_allow {
 	u32 role;		/* current role */
 	u32 new_role;		/* new role */
@@ -217,6 +226,9 @@ struct policydb {
 	/* role transitions */
 	struct role_trans *role_tr;
 
+	/* file transitions with the last path component */
+	struct filename_trans *filename_trans;
+
 	/* bools indexed by (value - 1) */
 	struct cond_bool_datum **bool_val_to_struct;
 	/* type enforcement conditional access vectors and transitions */
@@ -302,7 +314,7 @@ static inline int next_entry(void *buf, struct policy_file *fp, size_t bytes)
 	return 0;
 }
 
-static inline int put_entry(void *buf, size_t bytes, int num, struct policy_file *fp)
+static inline int put_entry(const void *buf, size_t bytes, int num, struct policy_file *fp)
 {
 	size_t len = bytes * num;
 
diff --git a/security/selinux/ss/services.c b/security/selinux/ss/services.c
index a03cfaf0ee07..3e7544d2a07b 100644
--- a/security/selinux/ss/services.c
+++ b/security/selinux/ss/services.c
@@ -201,6 +201,21 @@ static u16 unmap_class(u16 tclass)
 	return tclass;
 }
 
+/*
+ * Get kernel value for class from its policy value
+ */
+static u16 map_class(u16 pol_value)
+{
+	u16 i;
+
+	for (i = 1; i < current_mapping_size; i++) {
+		if (current_mapping[i].value == pol_value)
+			return i;
+	}
+
+	return pol_value;
+}
+
 static void map_decision(u16 tclass, struct av_decision *avd,
 			 int allow_unknown)
 {
@@ -1343,10 +1358,27 @@ out:
 	return -EACCES;
 }
 
+static void filename_compute_type(struct policydb *p, struct context *newcontext,
+				  u32 scon, u32 tcon, u16 tclass,
+				  const struct qstr *qstr)
+{
+	struct filename_trans *ft;
+	for (ft = p->filename_trans; ft; ft = ft->next) {
+		if (ft->stype == scon &&
+		    ft->ttype == tcon &&
+		    ft->tclass == tclass &&
+		    !strcmp(ft->name, qstr->name)) {
+			newcontext->type = ft->otype;
+			return;
+		}
+	}
+}
+
 static int security_compute_sid(u32 ssid,
 				u32 tsid,
 				u16 orig_tclass,
 				u32 specified,
+				const struct qstr *qstr,
 				u32 *out_sid,
 				bool kern)
 {
@@ -1357,6 +1389,7 @@ static int security_compute_sid(u32 ssid,
 	struct avtab_node *node;
 	u16 tclass;
 	int rc = 0;
+	bool sock;
 
 	if (!ss_initialized) {
 		switch (orig_tclass) {
@@ -1374,10 +1407,13 @@ static int security_compute_sid(u32 ssid,
 
 	read_lock(&policy_rwlock);
 
-	if (kern)
+	if (kern) {
 		tclass = unmap_class(orig_tclass);
-	else
+		sock = security_is_socket_class(orig_tclass);
+	} else {
 		tclass = orig_tclass;
+		sock = security_is_socket_class(map_class(tclass));
+	}
 
 	scontext = sidtab_search(&sidtab, ssid);
 	if (!scontext) {
@@ -1408,7 +1444,7 @@ static int security_compute_sid(u32 ssid,
 	}
 
 	/* Set the role and type to default values. */
-	if (tclass == policydb.process_class) {
+	if ((tclass == policydb.process_class) || (sock == true)) {
 		/* Use the current role and type of process. */
 		newcontext.role = scontext->role;
 		newcontext.type = scontext->type;
@@ -1442,6 +1478,11 @@ static int security_compute_sid(u32 ssid,
 		newcontext.type = avdatum->data;
 	}
 
+	/* if we have a qstr this is a file trans check so check those rules */
+	if (qstr)
+		filename_compute_type(&policydb, &newcontext, scontext->type,
+				      tcontext->type, tclass, qstr);
+
 	/* Check for class-specific changes. */
 	if  (tclass == policydb.process_class) {
 		if (specified & AVTAB_TRANSITION) {
@@ -1460,7 +1501,8 @@ static int security_compute_sid(u32 ssid,
 
 	/* Set the MLS attributes.
 	   This is done last because it may allocate memory. */
-	rc = mls_compute_sid(scontext, tcontext, tclass, specified, &newcontext);
+	rc = mls_compute_sid(scontext, tcontext, tclass, specified,
+			     &newcontext, sock);
 	if (rc)
 		goto out_unlock;
 
@@ -1495,22 +1537,17 @@ out:
  * if insufficient memory is available, or %0 if the new SID was
  * computed successfully.
  */
-int security_transition_sid(u32 ssid,
-			    u32 tsid,
-			    u16 tclass,
-			    u32 *out_sid)
+int security_transition_sid(u32 ssid, u32 tsid, u16 tclass,
+			    const struct qstr *qstr, u32 *out_sid)
 {
 	return security_compute_sid(ssid, tsid, tclass, AVTAB_TRANSITION,
-				    out_sid, true);
+				    qstr, out_sid, true);
 }
 
-int security_transition_sid_user(u32 ssid,
-				 u32 tsid,
-				 u16 tclass,
-				 u32 *out_sid)
+int security_transition_sid_user(u32 ssid, u32 tsid, u16 tclass, u32 *out_sid)
 {
 	return security_compute_sid(ssid, tsid, tclass, AVTAB_TRANSITION,
-				    out_sid, false);
+				    NULL, out_sid, false);
 }
 
 /**
@@ -1531,8 +1568,8 @@ int security_member_sid(u32 ssid,
 			u16 tclass,
 			u32 *out_sid)
 {
-	return security_compute_sid(ssid, tsid, tclass, AVTAB_MEMBER, out_sid,
-				    false);
+	return security_compute_sid(ssid, tsid, tclass, AVTAB_MEMBER, NULL,
+				    out_sid, false);
 }
 
 /**
@@ -1553,8 +1590,8 @@ int security_change_sid(u32 ssid,
 			u16 tclass,
 			u32 *out_sid)
 {
-	return security_compute_sid(ssid, tsid, tclass, AVTAB_CHANGE, out_sid,
-				    false);
+	return security_compute_sid(ssid, tsid, tclass, AVTAB_CHANGE, NULL,
+				    out_sid, false);
 }
 
 /* Clone the SID into the new SID table. */
diff --git a/security/selinux/xfrm.c b/security/selinux/xfrm.c
index fff78d3b51a2..728c57e3d65d 100644
--- a/security/selinux/xfrm.c
+++ b/security/selinux/xfrm.c
@@ -208,7 +208,7 @@ static int selinux_xfrm_sec_ctx_alloc(struct xfrm_sec_ctx **ctxp,
 	if (!uctx)
 		goto not_from_user;
 
-	if (uctx->ctx_doi != XFRM_SC_ALG_SELINUX)
+	if (uctx->ctx_alg != XFRM_SC_ALG_SELINUX)
 		return -EINVAL;
 
 	str_len = uctx->ctx_len;
diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
index 5ab3f39442f2..23c7a6d0c80c 100644
--- a/security/smack/smack_lsm.c
+++ b/security/smack/smack_lsm.c
@@ -33,6 +33,7 @@
 #include <net/cipso_ipv4.h>
 #include <linux/audit.h>
 #include <linux/magic.h>
+#include <linux/dcache.h>
 #include "smack.h"
 
 #define task_security(task)	(task_cred_xxx((task), security))
@@ -501,6 +502,7 @@ static void smack_inode_free_security(struct inode *inode)
  * smack_inode_init_security - copy out the smack from an inode
  * @inode: the inode
  * @dir: unused
+ * @qstr: unused
  * @name: where to put the attribute name
  * @value: where to put the attribute value
  * @len: where to put the length of the attribute
@@ -508,7 +510,8 @@ static void smack_inode_free_security(struct inode *inode)
  * Returns 0 if it all works out, -ENOMEM if there's no memory
  */
 static int smack_inode_init_security(struct inode *inode, struct inode *dir,
-				     char **name, void **value, size_t *len)
+				     const struct qstr *qstr, char **name,
+				     void **value, size_t *len)
 {
 	char *isp = smk_of_inode(inode);
 	char *dsp = smk_of_inode(dir);