Adding upstream version 5.10.209.upstream/5.10.209upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

24 files changed, 3128 insertions, 0 deletions

diff --git a/security/apparmor/include/apparmor.h b/security/apparmor/include/apparmor.h
new file mode 100644
index 000000000..1fbabdb56
--- /dev/null
+++ b/security/apparmor/include/apparmor.h
@@ -0,0 +1,45 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * AppArmor security module
+ *
+ * This file contains AppArmor basic global
+ *
+ * Copyright (C) 1998-2008 Novell/SUSE
+ * Copyright 2009-2017 Canonical Ltd.
+ */
+
+#ifndef __APPARMOR_H
+#define __APPARMOR_H
+
+#include <linux/types.h>
+
+/*
+ * Class of mediation types in the AppArmor policy db
+ */
+#define AA_CLASS_ENTRY		0
+#define AA_CLASS_UNKNOWN	1
+#define AA_CLASS_FILE		2
+#define AA_CLASS_CAP		3
+#define AA_CLASS_DEPRECATED	4
+#define AA_CLASS_RLIMITS	5
+#define AA_CLASS_DOMAIN		6
+#define AA_CLASS_MOUNT		7
+#define AA_CLASS_PTRACE		9
+#define AA_CLASS_SIGNAL		10
+#define AA_CLASS_NET		14
+#define AA_CLASS_LABEL		16
+
+#define AA_CLASS_LAST		AA_CLASS_LABEL
+
+/* Control parameters settable through module/boot flags */
+extern enum audit_mode aa_g_audit;
+extern bool aa_g_audit_header;
+extern bool aa_g_debug;
+extern bool aa_g_hash_policy;
+extern int aa_g_rawdata_compression_level;
+extern bool aa_g_lock_policy;
+extern bool aa_g_logsyscall;
+extern bool aa_g_paranoid_load;
+extern unsigned int aa_g_path_max;
+
+#endif /* __APPARMOR_H */
diff --git a/security/apparmor/include/apparmorfs.h b/security/apparmor/include/apparmorfs.h
new file mode 100644
index 000000000..6e14f6cec
--- /dev/null
+++ b/security/apparmor/include/apparmorfs.h
@@ -0,0 +1,120 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * AppArmor security module
+ *
+ * This file contains AppArmor filesystem definitions.
+ *
+ * Copyright (C) 1998-2008 Novell/SUSE
+ * Copyright 2009-2010 Canonical Ltd.
+ */
+
+#ifndef __AA_APPARMORFS_H
+#define __AA_APPARMORFS_H
+
+extern struct path aa_null;
+
+enum aa_sfs_type {
+	AA_SFS_TYPE_BOOLEAN,
+	AA_SFS_TYPE_STRING,
+	AA_SFS_TYPE_U64,
+	AA_SFS_TYPE_FOPS,
+	AA_SFS_TYPE_DIR,
+};
+
+struct aa_sfs_entry;
+
+struct aa_sfs_entry {
+	const char *name;
+	struct dentry *dentry;
+	umode_t mode;
+	enum aa_sfs_type v_type;
+	union {
+		bool boolean;
+		char *string;
+		unsigned long u64;
+		struct aa_sfs_entry *files;
+	} v;
+	const struct file_operations *file_ops;
+};
+
+extern const struct file_operations aa_sfs_seq_file_ops;
+
+#define AA_SFS_FILE_BOOLEAN(_name, _value) \
+	{ .name = (_name), .mode = 0444, \
+	  .v_type = AA_SFS_TYPE_BOOLEAN, .v.boolean = (_value), \
+	  .file_ops = &aa_sfs_seq_file_ops }
+#define AA_SFS_FILE_STRING(_name, _value) \
+	{ .name = (_name), .mode = 0444, \
+	  .v_type = AA_SFS_TYPE_STRING, .v.string = (_value), \
+	  .file_ops = &aa_sfs_seq_file_ops }
+#define AA_SFS_FILE_U64(_name, _value) \
+	{ .name = (_name), .mode = 0444, \
+	  .v_type = AA_SFS_TYPE_U64, .v.u64 = (_value), \
+	  .file_ops = &aa_sfs_seq_file_ops }
+#define AA_SFS_FILE_FOPS(_name, _mode, _fops) \
+	{ .name = (_name), .v_type = AA_SFS_TYPE_FOPS, \
+	  .mode = (_mode), .file_ops = (_fops) }
+#define AA_SFS_DIR(_name, _value) \
+	{ .name = (_name), .v_type = AA_SFS_TYPE_DIR, .v.files = (_value) }
+
+extern void __init aa_destroy_aafs(void);
+
+struct aa_profile;
+struct aa_ns;
+
+enum aafs_ns_type {
+	AAFS_NS_DIR,
+	AAFS_NS_PROFS,
+	AAFS_NS_NS,
+	AAFS_NS_RAW_DATA,
+	AAFS_NS_LOAD,
+	AAFS_NS_REPLACE,
+	AAFS_NS_REMOVE,
+	AAFS_NS_REVISION,
+	AAFS_NS_COUNT,
+	AAFS_NS_MAX_COUNT,
+	AAFS_NS_SIZE,
+	AAFS_NS_MAX_SIZE,
+	AAFS_NS_OWNER,
+	AAFS_NS_SIZEOF,
+};
+
+enum aafs_prof_type {
+	AAFS_PROF_DIR,
+	AAFS_PROF_PROFS,
+	AAFS_PROF_NAME,
+	AAFS_PROF_MODE,
+	AAFS_PROF_ATTACH,
+	AAFS_PROF_HASH,
+	AAFS_PROF_RAW_DATA,
+	AAFS_PROF_RAW_HASH,
+	AAFS_PROF_RAW_ABI,
+	AAFS_PROF_SIZEOF,
+};
+
+#define ns_dir(X) ((X)->dents[AAFS_NS_DIR])
+#define ns_subns_dir(X) ((X)->dents[AAFS_NS_NS])
+#define ns_subprofs_dir(X) ((X)->dents[AAFS_NS_PROFS])
+#define ns_subdata_dir(X) ((X)->dents[AAFS_NS_RAW_DATA])
+#define ns_subload(X) ((X)->dents[AAFS_NS_LOAD])
+#define ns_subreplace(X) ((X)->dents[AAFS_NS_REPLACE])
+#define ns_subremove(X) ((X)->dents[AAFS_NS_REMOVE])
+#define ns_subrevision(X) ((X)->dents[AAFS_NS_REVISION])
+
+#define prof_dir(X) ((X)->dents[AAFS_PROF_DIR])
+#define prof_child_dir(X) ((X)->dents[AAFS_PROF_PROFS])
+
+void __aa_bump_ns_revision(struct aa_ns *ns);
+void __aafs_profile_rmdir(struct aa_profile *profile);
+void __aafs_profile_migrate_dents(struct aa_profile *old,
+				   struct aa_profile *new);
+int __aafs_profile_mkdir(struct aa_profile *profile, struct dentry *parent);
+void __aafs_ns_rmdir(struct aa_ns *ns);
+int __aafs_ns_mkdir(struct aa_ns *ns, struct dentry *parent, const char *name,
+		     struct dentry *dent);
+
+struct aa_loaddata;
+void __aa_fs_remove_rawdata(struct aa_loaddata *rawdata);
+int __aa_fs_create_rawdata(struct aa_ns *ns, struct aa_loaddata *rawdata);
+
+#endif /* __AA_APPARMORFS_H */
diff --git a/security/apparmor/include/audit.h b/security/apparmor/include/audit.h
new file mode 100644
index 000000000..18519a4eb
--- /dev/null
+++ b/security/apparmor/include/audit.h
@@ -0,0 +1,193 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * AppArmor security module
+ *
+ * This file contains AppArmor auditing function definitions.
+ *
+ * Copyright (C) 1998-2008 Novell/SUSE
+ * Copyright 2009-2010 Canonical Ltd.
+ */
+
+#ifndef __AA_AUDIT_H
+#define __AA_AUDIT_H
+
+#include <linux/audit.h>
+#include <linux/fs.h>
+#include <linux/lsm_audit.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+
+#include "file.h"
+#include "label.h"
+
+extern const char *const audit_mode_names[];
+#define AUDIT_MAX_INDEX 5
+enum audit_mode {
+	AUDIT_NORMAL,		/* follow normal auditing of accesses */
+	AUDIT_QUIET_DENIED,	/* quiet all denied access messages */
+	AUDIT_QUIET,		/* quiet all messages */
+	AUDIT_NOQUIET,		/* do not quiet audit messages */
+	AUDIT_ALL		/* audit all accesses */
+};
+
+enum audit_type {
+	AUDIT_APPARMOR_AUDIT,
+	AUDIT_APPARMOR_ALLOWED,
+	AUDIT_APPARMOR_DENIED,
+	AUDIT_APPARMOR_HINT,
+	AUDIT_APPARMOR_STATUS,
+	AUDIT_APPARMOR_ERROR,
+	AUDIT_APPARMOR_KILL,
+	AUDIT_APPARMOR_AUTO
+};
+
+#define OP_NULL NULL
+
+#define OP_SYSCTL "sysctl"
+#define OP_CAPABLE "capable"
+
+#define OP_UNLINK "unlink"
+#define OP_MKDIR "mkdir"
+#define OP_RMDIR "rmdir"
+#define OP_MKNOD "mknod"
+#define OP_TRUNC "truncate"
+#define OP_LINK "link"
+#define OP_SYMLINK "symlink"
+#define OP_RENAME_SRC "rename_src"
+#define OP_RENAME_DEST "rename_dest"
+#define OP_CHMOD "chmod"
+#define OP_CHOWN "chown"
+#define OP_GETATTR "getattr"
+#define OP_OPEN "open"
+
+#define OP_FRECEIVE "file_receive"
+#define OP_FPERM "file_perm"
+#define OP_FLOCK "file_lock"
+#define OP_FMMAP "file_mmap"
+#define OP_FMPROT "file_mprotect"
+#define OP_INHERIT "file_inherit"
+
+#define OP_PIVOTROOT "pivotroot"
+#define OP_MOUNT "mount"
+#define OP_UMOUNT "umount"
+
+#define OP_CREATE "create"
+#define OP_POST_CREATE "post_create"
+#define OP_BIND "bind"
+#define OP_CONNECT "connect"
+#define OP_LISTEN "listen"
+#define OP_ACCEPT "accept"
+#define OP_SENDMSG "sendmsg"
+#define OP_RECVMSG "recvmsg"
+#define OP_GETSOCKNAME "getsockname"
+#define OP_GETPEERNAME "getpeername"
+#define OP_GETSOCKOPT "getsockopt"
+#define OP_SETSOCKOPT "setsockopt"
+#define OP_SHUTDOWN "socket_shutdown"
+
+#define OP_PTRACE "ptrace"
+#define OP_SIGNAL "signal"
+
+#define OP_EXEC "exec"
+
+#define OP_CHANGE_HAT "change_hat"
+#define OP_CHANGE_PROFILE "change_profile"
+#define OP_CHANGE_ONEXEC "change_onexec"
+#define OP_STACK "stack"
+#define OP_STACK_ONEXEC "stack_onexec"
+
+#define OP_SETPROCATTR "setprocattr"
+#define OP_SETRLIMIT "setrlimit"
+
+#define OP_PROF_REPL "profile_replace"
+#define OP_PROF_LOAD "profile_load"
+#define OP_PROF_RM "profile_remove"
+
+
+struct apparmor_audit_data {
+	int error;
+	int type;
+	const char *op;
+	struct aa_label *label;
+	const char *name;
+	const char *info;
+	u32 request;
+	u32 denied;
+	union {
+		/* these entries require a custom callback fn */
+		struct {
+			struct aa_label *peer;
+			union {
+				struct {
+					const char *target;
+					kuid_t ouid;
+				} fs;
+				struct {
+					int rlim;
+					unsigned long max;
+				} rlim;
+				struct {
+					int signal;
+					int unmappedsig;
+				};
+				struct {
+					int type, protocol;
+					struct sock *peer_sk;
+					void *addr;
+					int addrlen;
+				} net;
+			};
+		};
+		struct {
+			struct aa_profile *profile;
+			const char *ns;
+			long pos;
+		} iface;
+		struct {
+			const char *src_name;
+			const char *type;
+			const char *trans;
+			const char *data;
+			unsigned long flags;
+		} mnt;
+	};
+};
+
+/* macros for dealing with  apparmor_audit_data structure */
+#define aad(SA) ((SA)->apparmor_audit_data)
+#define DEFINE_AUDIT_DATA(NAME, T, X)					\
+	/* TODO: cleanup audit init so we don't need _aad = {0,} */	\
+	struct apparmor_audit_data NAME ## _aad = { .op = (X), };	\
+	struct common_audit_data NAME =					\
+	{								\
+	.type = (T),							\
+	.u.tsk = NULL,							\
+	};								\
+	NAME.apparmor_audit_data = &(NAME ## _aad)
+
+void aa_audit_msg(int type, struct common_audit_data *sa,
+		  void (*cb) (struct audit_buffer *, void *));
+int aa_audit(int type, struct aa_profile *profile, struct common_audit_data *sa,
+	     void (*cb) (struct audit_buffer *, void *));
+
+#define aa_audit_error(ERROR, SA, CB)				\
+({								\
+	aad((SA))->error = (ERROR);				\
+	aa_audit_msg(AUDIT_APPARMOR_ERROR, (SA), (CB));		\
+	aad((SA))->error;					\
+})
+
+
+static inline int complain_error(int error)
+{
+	if (error == -EPERM || error == -EACCES)
+		return 0;
+	return error;
+}
+
+void aa_audit_rule_free(void *vrule);
+int aa_audit_rule_init(u32 field, u32 op, char *rulestr, void **vrule);
+int aa_audit_rule_known(struct audit_krule *rule);
+int aa_audit_rule_match(u32 sid, u32 field, u32 op, void *vrule);
+
+#endif /* __AA_AUDIT_H */
diff --git a/security/apparmor/include/capability.h b/security/apparmor/include/capability.h
new file mode 100644
index 000000000..d420e2d10
--- /dev/null
+++ b/security/apparmor/include/capability.h
@@ -0,0 +1,46 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * AppArmor security module
+ *
+ * This file contains AppArmor capability mediation definitions.
+ *
+ * Copyright (C) 1998-2008 Novell/SUSE
+ * Copyright 2009-2013 Canonical Ltd.
+ */
+
+#ifndef __AA_CAPABILITY_H
+#define __AA_CAPABILITY_H
+
+#include <linux/sched.h>
+
+#include "apparmorfs.h"
+
+struct aa_label;
+
+/* aa_caps - confinement data for capabilities
+ * @allowed: capabilities mask
+ * @audit: caps that are to be audited
+ * @denied: caps that are explicitly denied
+ * @quiet: caps that should not be audited
+ * @kill: caps that when requested will result in the task being killed
+ * @extended: caps that are subject finer grained mediation
+ */
+struct aa_caps {
+	kernel_cap_t allow;
+	kernel_cap_t audit;
+	kernel_cap_t denied;
+	kernel_cap_t quiet;
+	kernel_cap_t kill;
+	kernel_cap_t extended;
+};
+
+extern struct aa_sfs_entry aa_sfs_entry_caps[];
+
+int aa_capable(struct aa_label *label, int cap, unsigned int opts);
+
+static inline void aa_free_cap_rules(struct aa_caps *caps)
+{
+	/* NOP */
+}
+
+#endif /* __AA_CAPBILITY_H */
diff --git a/security/apparmor/include/cred.h b/security/apparmor/include/cred.h
new file mode 100644
index 000000000..0b9ae4804
--- /dev/null
+++ b/security/apparmor/include/cred.h
@@ -0,0 +1,188 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * AppArmor security module
+ *
+ * This file contains AppArmor contexts used to associate "labels" to objects.
+ *
+ * Copyright (C) 1998-2008 Novell/SUSE
+ * Copyright 2009-2010 Canonical Ltd.
+ */
+
+#ifndef __AA_CONTEXT_H
+#define __AA_CONTEXT_H
+
+#include <linux/cred.h>
+#include <linux/slab.h>
+#include <linux/sched.h>
+
+#include "label.h"
+#include "policy_ns.h"
+#include "task.h"
+
+static inline struct aa_label *cred_label(const struct cred *cred)
+{
+	struct aa_label **blob = cred->security + apparmor_blob_sizes.lbs_cred;
+
+	AA_BUG(!blob);
+	return *blob;
+}
+
+static inline void set_cred_label(const struct cred *cred,
+				  struct aa_label *label)
+{
+	struct aa_label **blob = cred->security + apparmor_blob_sizes.lbs_cred;
+
+	AA_BUG(!blob);
+	*blob = label;
+}
+
+/**
+ * aa_cred_raw_label - obtain cred's label
+ * @cred: cred to obtain label from  (NOT NULL)
+ *
+ * Returns: confining label
+ *
+ * does NOT increment reference count
+ */
+static inline struct aa_label *aa_cred_raw_label(const struct cred *cred)
+{
+	struct aa_label *label = cred_label(cred);
+
+	AA_BUG(!label);
+	return label;
+}
+
+/**
+ * aa_get_newest_cred_label - obtain the newest label on a cred
+ * @cred: cred to obtain label from (NOT NULL)
+ *
+ * Returns: newest version of confining label
+ */
+static inline struct aa_label *aa_get_newest_cred_label(const struct cred *cred)
+{
+	return aa_get_newest_label(aa_cred_raw_label(cred));
+}
+
+/**
+ * __aa_task_raw_label - retrieve another task's label
+ * @task: task to query  (NOT NULL)
+ *
+ * Returns: @task's label without incrementing its ref count
+ *
+ * If @task != current needs to be called in RCU safe critical section
+ */
+static inline struct aa_label *__aa_task_raw_label(struct task_struct *task)
+{
+	return aa_cred_raw_label(__task_cred(task));
+}
+
+/**
+ * aa_current_raw_label - find the current tasks confining label
+ *
+ * Returns: up to date confining label or the ns unconfined label (NOT NULL)
+ *
+ * This fn will not update the tasks cred to the most up to date version
+ * of the label so it is safe to call when inside of locks.
+ */
+static inline struct aa_label *aa_current_raw_label(void)
+{
+	return aa_cred_raw_label(current_cred());
+}
+
+/**
+ * aa_get_current_label - get the newest version of the current tasks label
+ *
+ * Returns: newest version of confining label (NOT NULL)
+ *
+ * This fn will not update the tasks cred, so it is safe inside of locks
+ *
+ * The returned reference must be put with aa_put_label()
+ */
+static inline struct aa_label *aa_get_current_label(void)
+{
+	struct aa_label *l = aa_current_raw_label();
+
+	if (label_is_stale(l))
+		return aa_get_newest_label(l);
+	return aa_get_label(l);
+}
+
+#define __end_current_label_crit_section(X) end_current_label_crit_section(X)
+
+/**
+ * end_label_crit_section - put a reference found with begin_current_label..
+ * @label: label reference to put
+ *
+ * Should only be used with a reference obtained with
+ * begin_current_label_crit_section and never used in situations where the
+ * task cred may be updated
+ */
+static inline void end_current_label_crit_section(struct aa_label *label)
+{
+	if (label != aa_current_raw_label())
+		aa_put_label(label);
+}
+
+/**
+ * __begin_current_label_crit_section - current's confining label
+ *
+ * Returns: up to date confining label or the ns unconfined label (NOT NULL)
+ *
+ * safe to call inside locks
+ *
+ * The returned reference must be put with __end_current_label_crit_section()
+ * This must NOT be used if the task cred could be updated within the
+ * critical section between __begin_current_label_crit_section() ..
+ * __end_current_label_crit_section()
+ */
+static inline struct aa_label *__begin_current_label_crit_section(void)
+{
+	struct aa_label *label = aa_current_raw_label();
+
+	if (label_is_stale(label))
+		label = aa_get_newest_label(label);
+
+	return label;
+}
+
+/**
+ * begin_current_label_crit_section - current's confining label and update it
+ *
+ * Returns: up to date confining label or the ns unconfined label (NOT NULL)
+ *
+ * Not safe to call inside locks
+ *
+ * The returned reference must be put with end_current_label_crit_section()
+ * This must NOT be used if the task cred could be updated within the
+ * critical section between begin_current_label_crit_section() ..
+ * end_current_label_crit_section()
+ */
+static inline struct aa_label *begin_current_label_crit_section(void)
+{
+	struct aa_label *label = aa_current_raw_label();
+
+	might_sleep();
+
+	if (label_is_stale(label)) {
+		label = aa_get_newest_label(label);
+		if (aa_replace_current_label(label) == 0)
+			/* task cred will keep the reference */
+			aa_put_label(label);
+	}
+
+	return label;
+}
+
+static inline struct aa_ns *aa_get_current_ns(void)
+{
+	struct aa_label *label;
+	struct aa_ns *ns;
+
+	label  = __begin_current_label_crit_section();
+	ns = aa_get_ns(labels_ns(label));
+	__end_current_label_crit_section(label);
+
+	return ns;
+}
+
+#endif /* __AA_CONTEXT_H */
diff --git a/security/apparmor/include/crypto.h b/security/apparmor/include/crypto.h
new file mode 100644
index 000000000..636a04e20
--- /dev/null
+++ b/security/apparmor/include/crypto.h
@@ -0,0 +1,37 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * AppArmor security module
+ *
+ * This file contains AppArmor policy loading interface function definitions.
+ *
+ * Copyright 2013 Canonical Ltd.
+ */
+
+#ifndef __APPARMOR_CRYPTO_H
+#define __APPARMOR_CRYPTO_H
+
+#include "policy.h"
+
+#ifdef CONFIG_SECURITY_APPARMOR_HASH
+unsigned int aa_hash_size(void);
+char *aa_calc_hash(void *data, size_t len);
+int aa_calc_profile_hash(struct aa_profile *profile, u32 version, void *start,
+			 size_t len);
+#else
+static inline char *aa_calc_hash(void *data, size_t len)
+{
+	return NULL;
+}
+static inline int aa_calc_profile_hash(struct aa_profile *profile, u32 version,
+				       void *start, size_t len)
+{
+	return 0;
+}
+
+static inline unsigned int aa_hash_size(void)
+{
+	return 0;
+}
+#endif
+
+#endif /* __APPARMOR_CRYPTO_H */
diff --git a/security/apparmor/include/domain.h b/security/apparmor/include/domain.h
new file mode 100644
index 000000000..d14928fe1
--- /dev/null
+++ b/security/apparmor/include/domain.h
@@ -0,0 +1,39 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * AppArmor security module
+ *
+ * This file contains AppArmor security domain transition function definitions.
+ *
+ * Copyright (C) 1998-2008 Novell/SUSE
+ * Copyright 2009-2010 Canonical Ltd.
+ */
+
+#include <linux/binfmts.h>
+#include <linux/types.h>
+
+#include "label.h"
+
+#ifndef __AA_DOMAIN_H
+#define __AA_DOMAIN_H
+
+struct aa_domain {
+	int size;
+	char **table;
+};
+
+#define AA_CHANGE_NOFLAGS 0
+#define AA_CHANGE_TEST 1
+#define AA_CHANGE_CHILD 2
+#define AA_CHANGE_ONEXEC  4
+#define AA_CHANGE_STACK 8
+
+struct aa_label *x_table_lookup(struct aa_profile *profile, u32 xindex,
+				const char **name);
+
+int apparmor_bprm_creds_for_exec(struct linux_binprm *bprm);
+
+void aa_free_domain_entries(struct aa_domain *domain);
+int aa_change_hat(const char *hats[], int count, u64 token, int flags);
+int aa_change_profile(const char *fqname, int flags);
+
+#endif /* __AA_DOMAIN_H */
diff --git a/security/apparmor/include/file.h b/security/apparmor/include/file.h
new file mode 100644
index 000000000..d4f894851
--- /dev/null
+++ b/security/apparmor/include/file.h
@@ -0,0 +1,237 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * AppArmor security module
+ *
+ * This file contains AppArmor file mediation function definitions.
+ *
+ * Copyright (C) 1998-2008 Novell/SUSE
+ * Copyright 2009-2010 Canonical Ltd.
+ */
+
+#ifndef __AA_FILE_H
+#define __AA_FILE_H
+
+#include <linux/spinlock.h>
+
+#include "domain.h"
+#include "match.h"
+#include "perms.h"
+
+struct aa_profile;
+struct path;
+
+#define mask_mode_t(X) (X & (MAY_EXEC | MAY_WRITE | MAY_READ | MAY_APPEND))
+
+#define AA_AUDIT_FILE_MASK	(MAY_READ | MAY_WRITE | MAY_EXEC | MAY_APPEND |\
+				 AA_MAY_CREATE | AA_MAY_DELETE |	\
+				 AA_MAY_GETATTR | AA_MAY_SETATTR | \
+				 AA_MAY_CHMOD | AA_MAY_CHOWN | AA_MAY_LOCK | \
+				 AA_EXEC_MMAP | AA_MAY_LINK)
+
+static inline struct aa_file_ctx *file_ctx(struct file *file)
+{
+	return file->f_security + apparmor_blob_sizes.lbs_file;
+}
+
+/* struct aa_file_ctx - the AppArmor context the file was opened in
+ * @lock: lock to update the ctx
+ * @label: label currently cached on the ctx
+ * @perms: the permission the file was opened with
+ */
+struct aa_file_ctx {
+	spinlock_t lock;
+	struct aa_label __rcu *label;
+	u32 allow;
+};
+
+/**
+ * aa_alloc_file_ctx - allocate file_ctx
+ * @label: initial label of task creating the file
+ * @gfp: gfp flags for allocation
+ *
+ * Returns: file_ctx or NULL on failure
+ */
+static inline struct aa_file_ctx *aa_alloc_file_ctx(struct aa_label *label,
+						    gfp_t gfp)
+{
+	struct aa_file_ctx *ctx;
+
+	ctx = kzalloc(sizeof(struct aa_file_ctx), gfp);
+	if (ctx) {
+		spin_lock_init(&ctx->lock);
+		rcu_assign_pointer(ctx->label, aa_get_label(label));
+	}
+	return ctx;
+}
+
+/**
+ * aa_free_file_ctx - free a file_ctx
+ * @ctx: file_ctx to free  (MAYBE_NULL)
+ */
+static inline void aa_free_file_ctx(struct aa_file_ctx *ctx)
+{
+	if (ctx) {
+		aa_put_label(rcu_access_pointer(ctx->label));
+		kfree_sensitive(ctx);
+	}
+}
+
+static inline struct aa_label *aa_get_file_label(struct aa_file_ctx *ctx)
+{
+	return aa_get_label_rcu(&ctx->label);
+}
+
+/*
+ * The xindex is broken into 3 parts
+ * - index - an index into either the exec name table or the variable table
+ * - exec type - which determines how the executable name and index are used
+ * - flags - which modify how the destination name is applied
+ */
+#define AA_X_INDEX_MASK		0x03ff
+
+#define AA_X_TYPE_MASK		0x0c00
+#define AA_X_TYPE_SHIFT		10
+#define AA_X_NONE		0x0000
+#define AA_X_NAME		0x0400	/* use executable name px */
+#define AA_X_TABLE		0x0800	/* use a specified name ->n# */
+
+#define AA_X_UNSAFE		0x1000
+#define AA_X_CHILD		0x2000	/* make >AA_X_NONE apply to children */
+#define AA_X_INHERIT		0x4000
+#define AA_X_UNCONFINED		0x8000
+
+/* need to make conditional which ones are being set */
+struct path_cond {
+	kuid_t uid;
+	umode_t mode;
+};
+
+#define COMBINED_PERM_MASK(X) ((X).allow | (X).audit | (X).quiet | (X).kill)
+
+/* FIXME: split perms from dfa and match this to description
+ *        also add delegation info.
+ */
+static inline u16 dfa_map_xindex(u16 mask)
+{
+	u16 old_index = (mask >> 10) & 0xf;
+	u16 index = 0;
+
+	if (mask & 0x100)
+		index |= AA_X_UNSAFE;
+	if (mask & 0x200)
+		index |= AA_X_INHERIT;
+	if (mask & 0x80)
+		index |= AA_X_UNCONFINED;
+
+	if (old_index == 1) {
+		index |= AA_X_UNCONFINED;
+	} else if (old_index == 2) {
+		index |= AA_X_NAME;
+	} else if (old_index == 3) {
+		index |= AA_X_NAME | AA_X_CHILD;
+	} else if (old_index) {
+		index |= AA_X_TABLE;
+		index |= old_index - 4;
+	}
+
+	return index;
+}
+
+/*
+ * map old dfa inline permissions to new format
+ */
+#define dfa_user_allow(dfa, state) (((ACCEPT_TABLE(dfa)[state]) & 0x7f) | \
+				    ((ACCEPT_TABLE(dfa)[state]) & 0x80000000))
+#define dfa_user_audit(dfa, state) ((ACCEPT_TABLE2(dfa)[state]) & 0x7f)
+#define dfa_user_quiet(dfa, state) (((ACCEPT_TABLE2(dfa)[state]) >> 7) & 0x7f)
+#define dfa_user_xindex(dfa, state) \
+	(dfa_map_xindex(ACCEPT_TABLE(dfa)[state] & 0x3fff))
+
+#define dfa_other_allow(dfa, state) ((((ACCEPT_TABLE(dfa)[state]) >> 14) & \
+				      0x7f) |				\
+				     ((ACCEPT_TABLE(dfa)[state]) & 0x80000000))
+#define dfa_other_audit(dfa, state) (((ACCEPT_TABLE2(dfa)[state]) >> 14) & 0x7f)
+#define dfa_other_quiet(dfa, state) \
+	((((ACCEPT_TABLE2(dfa)[state]) >> 7) >> 14) & 0x7f)
+#define dfa_other_xindex(dfa, state) \
+	dfa_map_xindex((ACCEPT_TABLE(dfa)[state] >> 14) & 0x3fff)
+
+int aa_audit_file(struct aa_profile *profile, struct aa_perms *perms,
+		  const char *op, u32 request, const char *name,
+		  const char *target, struct aa_label *tlabel, kuid_t ouid,
+		  const char *info, int error);
+
+/**
+ * struct aa_file_rules - components used for file rule permissions
+ * @dfa: dfa to match path names and conditionals against
+ * @perms: permission table indexed by the matched state accept entry of @dfa
+ * @trans: transition table for indexed by named x transitions
+ *
+ * File permission are determined by matching a path against @dfa and then
+ * then using the value of the accept entry for the matching state as
+ * an index into @perms.  If a named exec transition is required it is
+ * looked up in the transition table.
+ */
+struct aa_file_rules {
+	unsigned int start;
+	struct aa_dfa *dfa;
+	/* struct perms perms; */
+	struct aa_domain trans;
+	/* TODO: add delegate table */
+};
+
+struct aa_perms aa_compute_fperms(struct aa_dfa *dfa, unsigned int state,
+				    struct path_cond *cond);
+unsigned int aa_str_perms(struct aa_dfa *dfa, unsigned int start,
+			  const char *name, struct path_cond *cond,
+			  struct aa_perms *perms);
+
+int __aa_path_perm(const char *op, struct aa_profile *profile,
+		   const char *name, u32 request, struct path_cond *cond,
+		   int flags, struct aa_perms *perms);
+int aa_path_perm(const char *op, struct aa_label *label,
+		 const struct path *path, int flags, u32 request,
+		 struct path_cond *cond);
+
+int aa_path_link(struct aa_label *label, struct dentry *old_dentry,
+		 const struct path *new_dir, struct dentry *new_dentry);
+
+int aa_file_perm(const char *op, struct aa_label *label, struct file *file,
+		 u32 request, bool in_atomic);
+
+void aa_inherit_files(const struct cred *cred, struct files_struct *files);
+
+static inline void aa_free_file_rules(struct aa_file_rules *rules)
+{
+	aa_put_dfa(rules->dfa);
+	aa_free_domain_entries(&rules->trans);
+}
+
+/**
+ * aa_map_file_perms - map file flags to AppArmor permissions
+ * @file: open file to map flags to AppArmor permissions
+ *
+ * Returns: apparmor permission set for the file
+ */
+static inline u32 aa_map_file_to_perms(struct file *file)
+{
+	int flags = file->f_flags;
+	u32 perms = 0;
+
+	if (file->f_mode & FMODE_WRITE)
+		perms |= MAY_WRITE;
+	if (file->f_mode & FMODE_READ)
+		perms |= MAY_READ;
+
+	if ((flags & O_APPEND) && (perms & MAY_WRITE))
+		perms = (perms & ~MAY_WRITE) | MAY_APPEND;
+	/* trunc implies write permission */
+	if (flags & O_TRUNC)
+		perms |= MAY_WRITE;
+	if (flags & O_CREAT)
+		perms |= AA_MAY_CREATE;
+
+	return perms;
+}
+
+#endif /* __AA_FILE_H */
diff --git a/security/apparmor/include/ipc.h b/security/apparmor/include/ipc.h
new file mode 100644
index 000000000..9cafd80f7
--- /dev/null
+++ b/security/apparmor/include/ipc.h
@@ -0,0 +1,36 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * AppArmor security module
+ *
+ * This file contains AppArmor ipc mediation function definitions.
+ *
+ * Copyright (C) 1998-2008 Novell/SUSE
+ * Copyright 2009-2017 Canonical Ltd.
+ */
+
+#ifndef __AA_IPC_H
+#define __AA_IPC_H
+
+#include <linux/sched.h>
+
+struct aa_profile;
+
+#define AA_PTRACE_TRACE		MAY_WRITE
+#define AA_PTRACE_READ		MAY_READ
+#define AA_MAY_BE_TRACED	AA_MAY_APPEND
+#define AA_MAY_BE_READ		AA_MAY_CREATE
+#define PTRACE_PERM_SHIFT	2
+
+#define AA_PTRACE_PERM_MASK (AA_PTRACE_READ | AA_PTRACE_TRACE | \
+			     AA_MAY_BE_READ | AA_MAY_BE_TRACED)
+#define AA_SIGNAL_PERM_MASK (MAY_READ | MAY_WRITE)
+
+#define AA_SFS_SIG_MASK "hup int quit ill trap abrt bus fpe kill usr1 " \
+	"segv usr2 pipe alrm term stkflt chld cont stop stp ttin ttou urg " \
+	"xcpu xfsz vtalrm prof winch io pwr sys emt lost"
+
+int aa_may_ptrace(struct aa_label *tracer, struct aa_label *tracee,
+		  u32 request);
+int aa_may_signal(struct aa_label *sender, struct aa_label *target, int sig);
+
+#endif /* __AA_IPC_H */
diff --git a/security/apparmor/include/label.h b/security/apparmor/include/label.h
new file mode 100644
index 000000000..1e90384b1
--- /dev/null
+++ b/security/apparmor/include/label.h
@@ -0,0 +1,468 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * AppArmor security module
+ *
+ * This file contains AppArmor label definitions
+ *
+ * Copyright 2017 Canonical Ltd.
+ */
+
+#ifndef __AA_LABEL_H
+#define __AA_LABEL_H
+
+#include <linux/atomic.h>
+#include <linux/audit.h>
+#include <linux/rbtree.h>
+#include <linux/rcupdate.h>
+
+#include "apparmor.h"
+#include "lib.h"
+
+struct aa_ns;
+
+#define LOCAL_VEC_ENTRIES 8
+#define DEFINE_VEC(T, V)						\
+	struct aa_ ## T *(_ ## V ## _localtmp)[LOCAL_VEC_ENTRIES];	\
+	struct aa_ ## T **(V)
+
+#define vec_setup(T, V, N, GFP)						\
+({									\
+	if ((N) <= LOCAL_VEC_ENTRIES) {					\
+		typeof(N) i;						\
+		(V) = (_ ## V ## _localtmp);				\
+		for (i = 0; i < (N); i++)				\
+			(V)[i] = NULL;					\
+	} else								\
+		(V) = kzalloc(sizeof(struct aa_ ## T *) * (N), (GFP));	\
+	(V) ? 0 : -ENOMEM;						\
+})
+
+#define vec_cleanup(T, V, N)						\
+do {									\
+	int i;								\
+	for (i = 0; i < (N); i++) {					\
+		if (!IS_ERR_OR_NULL((V)[i]))				\
+			aa_put_ ## T((V)[i]);				\
+	}								\
+	if ((V) != _ ## V ## _localtmp)					\
+		kfree(V);						\
+} while (0)
+
+#define vec_last(VEC, SIZE) ((VEC)[(SIZE) - 1])
+#define vec_ns(VEC, SIZE) (vec_last((VEC), (SIZE))->ns)
+#define vec_labelset(VEC, SIZE) (&vec_ns((VEC), (SIZE))->labels)
+#define cleanup_domain_vec(V, L) cleanup_label_vec((V), (L)->size)
+
+struct aa_profile;
+#define VEC_FLAG_TERMINATE 1
+int aa_vec_unique(struct aa_profile **vec, int n, int flags);
+struct aa_label *aa_vec_find_or_create_label(struct aa_profile **vec, int len,
+					     gfp_t gfp);
+#define aa_sort_and_merge_vec(N, V) \
+	aa_sort_and_merge_profiles((N), (struct aa_profile **)(V))
+
+
+/* struct aa_labelset - set of labels for a namespace
+ *
+ * Labels are reference counted; aa_labelset does not contribute to label
+ * reference counts. Once a label's last refcount is put it is removed from
+ * the set.
+ */
+struct aa_labelset {
+	rwlock_t lock;
+
+	struct rb_root root;
+};
+
+#define __labelset_for_each(LS, N) \
+	for ((N) = rb_first(&(LS)->root); (N); (N) = rb_next(N))
+
+void aa_labelset_destroy(struct aa_labelset *ls);
+void aa_labelset_init(struct aa_labelset *ls);
+
+
+enum label_flags {
+	FLAG_HAT = 1,			/* profile is a hat */
+	FLAG_UNCONFINED = 2,		/* label unconfined only if all */
+	FLAG_NULL = 4,			/* profile is null learning profile */
+	FLAG_IX_ON_NAME_ERROR = 8,	/* fallback to ix on name lookup fail */
+	FLAG_IMMUTIBLE = 0x10,		/* don't allow changes/replacement */
+	FLAG_USER_DEFINED = 0x20,	/* user based profile - lower privs */
+	FLAG_NO_LIST_REF = 0x40,	/* list doesn't keep profile ref */
+	FLAG_NS_COUNT = 0x80,		/* carries NS ref count */
+	FLAG_IN_TREE = 0x100,		/* label is in tree */
+	FLAG_PROFILE = 0x200,		/* label is a profile */
+	FLAG_EXPLICIT = 0x400,		/* explicit static label */
+	FLAG_STALE = 0x800,		/* replaced/removed */
+	FLAG_RENAMED = 0x1000,		/* label has renaming in it */
+	FLAG_REVOKED = 0x2000,		/* label has revocation in it */
+
+	/* These flags must correspond with PATH_flags */
+	/* TODO: add new path flags */
+};
+
+struct aa_label;
+struct aa_proxy {
+	struct kref count;
+	struct aa_label __rcu *label;
+};
+
+struct label_it {
+	int i, j;
+};
+
+/* struct aa_label - lazy labeling struct
+ * @count: ref count of active users
+ * @node: rbtree position
+ * @rcu: rcu callback struct
+ * @proxy: is set to the label that replaced this label
+ * @hname: text representation of the label (MAYBE_NULL)
+ * @flags: stale and other flags - values may change under label set lock
+ * @secid: secid that references this label
+ * @size: number of entries in @ent[]
+ * @ent: set of profiles for label, actual size determined by @size
+ */
+struct aa_label {
+	struct kref count;
+	struct rb_node node;
+	struct rcu_head rcu;
+	struct aa_proxy *proxy;
+	__counted char *hname;
+	long flags;
+	u32 secid;
+	int size;
+	struct aa_profile *vec[];
+};
+
+#define last_error(E, FN)				\
+do {							\
+	int __subE = (FN);				\
+	if (__subE)					\
+		(E) = __subE;				\
+} while (0)
+
+#define label_isprofile(X) ((X)->flags & FLAG_PROFILE)
+#define label_unconfined(X) ((X)->flags & FLAG_UNCONFINED)
+#define unconfined(X) label_unconfined(X)
+#define label_is_stale(X) ((X)->flags & FLAG_STALE)
+#define __label_make_stale(X) ((X)->flags |= FLAG_STALE)
+#define labels_ns(X) (vec_ns(&((X)->vec[0]), (X)->size))
+#define labels_set(X) (&labels_ns(X)->labels)
+#define labels_profile(X) ((X)->vec[(X)->size - 1])
+
+
+int aa_label_next_confined(struct aa_label *l, int i);
+
+/* for each profile in a label */
+#define label_for_each(I, L, P)						\
+	for ((I).i = 0; ((P) = (L)->vec[(I).i]); ++((I).i))
+
+/* assumes break/goto ended label_for_each */
+#define label_for_each_cont(I, L, P)					\
+	for (++((I).i); ((P) = (L)->vec[(I).i]); ++((I).i))
+
+#define next_comb(I, L1, L2)						\
+do {									\
+	(I).j++;							\
+	if ((I).j >= (L2)->size) {					\
+		(I).i++;						\
+		(I).j = 0;						\
+	}								\
+} while (0)
+
+
+/* for each combination of P1 in L1, and P2 in L2 */
+#define label_for_each_comb(I, L1, L2, P1, P2)				\
+for ((I).i = (I).j = 0;							\
+	((P1) = (L1)->vec[(I).i]) && ((P2) = (L2)->vec[(I).j]);		\
+	(I) = next_comb(I, L1, L2))
+
+#define fn_for_each_comb(L1, L2, P1, P2, FN)				\
+({									\
+	struct label_it i;						\
+	int __E = 0;							\
+	label_for_each_comb(i, (L1), (L2), (P1), (P2)) {		\
+		last_error(__E, (FN));					\
+	}								\
+	__E;								\
+})
+
+/* for each profile that is enforcing confinement in a label */
+#define label_for_each_confined(I, L, P)				\
+	for ((I).i = aa_label_next_confined((L), 0);			\
+	     ((P) = (L)->vec[(I).i]);					\
+	     (I).i = aa_label_next_confined((L), (I).i + 1))
+
+#define label_for_each_in_merge(I, A, B, P)				\
+	for ((I).i = (I).j = 0;						\
+	     ((P) = aa_label_next_in_merge(&(I), (A), (B)));		\
+	     )
+
+#define label_for_each_not_in_set(I, SET, SUB, P)			\
+	for ((I).i = (I).j = 0;						\
+	     ((P) = __aa_label_next_not_in_set(&(I), (SET), (SUB)));	\
+	     )
+
+#define next_in_ns(i, NS, L)						\
+({									\
+	typeof(i) ___i = (i);						\
+	while ((L)->vec[___i] && (L)->vec[___i]->ns != (NS))		\
+		(___i)++;						\
+	(___i);								\
+})
+
+#define label_for_each_in_ns(I, NS, L, P)				\
+	for ((I).i = next_in_ns(0, (NS), (L));				\
+	     ((P) = (L)->vec[(I).i]);					\
+	     (I).i = next_in_ns((I).i + 1, (NS), (L)))
+
+#define fn_for_each_in_ns(L, P, FN)					\
+({									\
+	struct label_it __i;						\
+	struct aa_ns *__ns = labels_ns(L);				\
+	int __E = 0;							\
+	label_for_each_in_ns(__i, __ns, (L), (P)) {			\
+		last_error(__E, (FN));					\
+	}								\
+	__E;								\
+})
+
+
+#define fn_for_each_XXX(L, P, FN, ...)					\
+({									\
+	struct label_it i;						\
+	int __E = 0;							\
+	label_for_each ## __VA_ARGS__(i, (L), (P)) {			\
+		last_error(__E, (FN));					\
+	}								\
+	__E;								\
+})
+
+#define fn_for_each(L, P, FN) fn_for_each_XXX(L, P, FN)
+#define fn_for_each_confined(L, P, FN) fn_for_each_XXX(L, P, FN, _confined)
+
+#define fn_for_each2_XXX(L1, L2, P, FN, ...)				\
+({									\
+	struct label_it i;						\
+	int __E = 0;							\
+	label_for_each ## __VA_ARGS__(i, (L1), (L2), (P)) {		\
+		last_error(__E, (FN));					\
+	}								\
+	__E;								\
+})
+
+#define fn_for_each_in_merge(L1, L2, P, FN)				\
+	fn_for_each2_XXX((L1), (L2), P, FN, _in_merge)
+#define fn_for_each_not_in_set(L1, L2, P, FN)				\
+	fn_for_each2_XXX((L1), (L2), P, FN, _not_in_set)
+
+#define LABEL_MEDIATES(L, C)						\
+({									\
+	struct aa_profile *profile;					\
+	struct label_it i;						\
+	int ret = 0;							\
+	label_for_each(i, (L), profile) {				\
+		if (PROFILE_MEDIATES(profile, (C))) {			\
+			ret = 1;					\
+			break;						\
+		}							\
+	}								\
+	ret;								\
+})
+
+
+void aa_labelset_destroy(struct aa_labelset *ls);
+void aa_labelset_init(struct aa_labelset *ls);
+void __aa_labelset_update_subtree(struct aa_ns *ns);
+
+void aa_label_destroy(struct aa_label *label);
+void aa_label_free(struct aa_label *label);
+void aa_label_kref(struct kref *kref);
+bool aa_label_init(struct aa_label *label, int size, gfp_t gfp);
+struct aa_label *aa_label_alloc(int size, struct aa_proxy *proxy, gfp_t gfp);
+
+bool aa_label_is_subset(struct aa_label *set, struct aa_label *sub);
+bool aa_label_is_unconfined_subset(struct aa_label *set, struct aa_label *sub);
+struct aa_profile *__aa_label_next_not_in_set(struct label_it *I,
+					     struct aa_label *set,
+					     struct aa_label *sub);
+bool aa_label_remove(struct aa_label *label);
+struct aa_label *aa_label_insert(struct aa_labelset *ls, struct aa_label *l);
+bool aa_label_replace(struct aa_label *old, struct aa_label *new);
+bool aa_label_make_newest(struct aa_labelset *ls, struct aa_label *old,
+			  struct aa_label *new);
+
+struct aa_label *aa_label_find(struct aa_label *l);
+
+struct aa_profile *aa_label_next_in_merge(struct label_it *I,
+					  struct aa_label *a,
+					  struct aa_label *b);
+struct aa_label *aa_label_find_merge(struct aa_label *a, struct aa_label *b);
+struct aa_label *aa_label_merge(struct aa_label *a, struct aa_label *b,
+				gfp_t gfp);
+
+
+bool aa_update_label_name(struct aa_ns *ns, struct aa_label *label, gfp_t gfp);
+
+#define FLAGS_NONE 0
+#define FLAG_SHOW_MODE 1
+#define FLAG_VIEW_SUBNS 2
+#define FLAG_HIDDEN_UNCONFINED 4
+#define FLAG_ABS_ROOT 8
+int aa_label_snxprint(char *str, size_t size, struct aa_ns *view,
+		      struct aa_label *label, int flags);
+int aa_label_asxprint(char **strp, struct aa_ns *ns, struct aa_label *label,
+		      int flags, gfp_t gfp);
+int aa_label_acntsxprint(char __counted **strp, struct aa_ns *ns,
+			 struct aa_label *label, int flags, gfp_t gfp);
+void aa_label_xaudit(struct audit_buffer *ab, struct aa_ns *ns,
+		     struct aa_label *label, int flags, gfp_t gfp);
+void aa_label_seq_xprint(struct seq_file *f, struct aa_ns *ns,
+			 struct aa_label *label, int flags, gfp_t gfp);
+void aa_label_xprintk(struct aa_ns *ns, struct aa_label *label, int flags,
+		      gfp_t gfp);
+void aa_label_audit(struct audit_buffer *ab, struct aa_label *label, gfp_t gfp);
+void aa_label_seq_print(struct seq_file *f, struct aa_label *label, gfp_t gfp);
+void aa_label_printk(struct aa_label *label, gfp_t gfp);
+
+struct aa_label *aa_label_strn_parse(struct aa_label *base, const char *str,
+				     size_t n, gfp_t gfp, bool create,
+				     bool force_stack);
+struct aa_label *aa_label_parse(struct aa_label *base, const char *str,
+				gfp_t gfp, bool create, bool force_stack);
+
+static inline const char *aa_label_strn_split(const char *str, int n)
+{
+	const char *pos;
+	unsigned int state;
+
+	state = aa_dfa_matchn_until(stacksplitdfa, DFA_START, str, n, &pos);
+	if (!ACCEPT_TABLE(stacksplitdfa)[state])
+		return NULL;
+
+	return pos - 3;
+}
+
+static inline const char *aa_label_str_split(const char *str)
+{
+	const char *pos;
+	unsigned int state;
+
+	state = aa_dfa_match_until(stacksplitdfa, DFA_START, str, &pos);
+	if (!ACCEPT_TABLE(stacksplitdfa)[state])
+		return NULL;
+
+	return pos - 3;
+}
+
+
+
+struct aa_perms;
+int aa_label_match(struct aa_profile *profile, struct aa_label *label,
+		   unsigned int state, bool subns, u32 request,
+		   struct aa_perms *perms);
+
+
+/**
+ * __aa_get_label - get a reference count to uncounted label reference
+ * @l: reference to get a count on
+ *
+ * Returns: pointer to reference OR NULL if race is lost and reference is
+ *          being repeated.
+ * Requires: lock held, and the return code MUST be checked
+ */
+static inline struct aa_label *__aa_get_label(struct aa_label *l)
+{
+	if (l && kref_get_unless_zero(&l->count))
+		return l;
+
+	return NULL;
+}
+
+static inline struct aa_label *aa_get_label(struct aa_label *l)
+{
+	if (l)
+		kref_get(&(l->count));
+
+	return l;
+}
+
+
+/**
+ * aa_get_label_rcu - increment refcount on a label that can be replaced
+ * @l: pointer to label that can be replaced (NOT NULL)
+ *
+ * Returns: pointer to a refcounted label.
+ *     else NULL if no label
+ */
+static inline struct aa_label *aa_get_label_rcu(struct aa_label __rcu **l)
+{
+	struct aa_label *c;
+
+	rcu_read_lock();
+	do {
+		c = rcu_dereference(*l);
+	} while (c && !kref_get_unless_zero(&c->count));
+	rcu_read_unlock();
+
+	return c;
+}
+
+/**
+ * aa_get_newest_label - find the newest version of @l
+ * @l: the label to check for newer versions of
+ *
+ * Returns: refcounted newest version of @l taking into account
+ *          replacement, renames and removals
+ *          return @l.
+ */
+static inline struct aa_label *aa_get_newest_label(struct aa_label *l)
+{
+	if (!l)
+		return NULL;
+
+	if (label_is_stale(l)) {
+		struct aa_label *tmp;
+
+		AA_BUG(!l->proxy);
+		AA_BUG(!l->proxy->label);
+		/* BUG: only way this can happen is @l ref count and its
+		 * replacement count have gone to 0 and are on their way
+		 * to destruction. ie. we have a refcounting error
+		 */
+		tmp = aa_get_label_rcu(&l->proxy->label);
+		AA_BUG(!tmp);
+
+		return tmp;
+	}
+
+	return aa_get_label(l);
+}
+
+static inline void aa_put_label(struct aa_label *l)
+{
+	if (l)
+		kref_put(&l->count, aa_label_kref);
+}
+
+
+struct aa_proxy *aa_alloc_proxy(struct aa_label *l, gfp_t gfp);
+void aa_proxy_kref(struct kref *kref);
+
+static inline struct aa_proxy *aa_get_proxy(struct aa_proxy *proxy)
+{
+	if (proxy)
+		kref_get(&(proxy->count));
+
+	return proxy;
+}
+
+static inline void aa_put_proxy(struct aa_proxy *proxy)
+{
+	if (proxy)
+		kref_put(&proxy->count, aa_proxy_kref);
+}
+
+void __aa_proxy_redirect(struct aa_label *orig, struct aa_label *new);
+
+#endif /* __AA_LABEL_H */
diff --git a/security/apparmor/include/lib.h b/security/apparmor/include/lib.h
new file mode 100644
index 000000000..ac5054899
--- /dev/null
+++ b/security/apparmor/include/lib.h
@@ -0,0 +1,293 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * AppArmor security module
+ *
+ * This file contains AppArmor lib definitions
+ *
+ * 2017 Canonical Ltd.
+ */
+
+#ifndef __AA_LIB_H
+#define __AA_LIB_H
+
+#include <linux/slab.h>
+#include <linux/fs.h>
+#include <linux/lsm_hooks.h>
+
+#include "match.h"
+
+/*
+ * DEBUG remains global (no per profile flag) since it is mostly used in sysctl
+ * which is not related to profile accesses.
+ */
+
+#define DEBUG_ON (aa_g_debug)
+/*
+ * split individual debug cases out in preparation for finer grained
+ * debug controls in the future.
+ */
+#define AA_DEBUG_LABEL DEBUG_ON
+#define dbg_printk(__fmt, __args...) pr_debug(__fmt, ##__args)
+#define AA_DEBUG(fmt, args...)						\
+	do {								\
+		if (DEBUG_ON)						\
+			pr_debug_ratelimited("AppArmor: " fmt, ##args);	\
+	} while (0)
+
+#define AA_WARN(X) WARN((X), "APPARMOR WARN %s: %s\n", __func__, #X)
+
+#define AA_BUG(X, args...) AA_BUG_FMT((X), "" args)
+#ifdef CONFIG_SECURITY_APPARMOR_DEBUG_ASSERTS
+#define AA_BUG_FMT(X, fmt, args...)					\
+	WARN((X), "AppArmor WARN %s: (" #X "): " fmt, __func__, ##args)
+#else
+#define AA_BUG_FMT(X, fmt, args...)
+#endif
+
+#define AA_ERROR(fmt, args...)						\
+	pr_err_ratelimited("AppArmor: " fmt, ##args)
+
+/* Flag indicating whether initialization completed */
+extern int apparmor_initialized;
+
+/* fn's in lib */
+const char *skipn_spaces(const char *str, size_t n);
+char *aa_split_fqname(char *args, char **ns_name);
+const char *aa_splitn_fqname(const char *fqname, size_t n, const char **ns_name,
+			     size_t *ns_len);
+void aa_info_message(const char *str);
+
+/* Security blob offsets */
+extern struct lsm_blob_sizes apparmor_blob_sizes;
+
+/**
+ * aa_strneq - compare null terminated @str to a non null terminated substring
+ * @str: a null terminated string
+ * @sub: a substring, not necessarily null terminated
+ * @len: length of @sub to compare
+ *
+ * The @str string must be full consumed for this to be considered a match
+ */
+static inline bool aa_strneq(const char *str, const char *sub, int len)
+{
+	return !strncmp(str, sub, len) && !str[len];
+}
+
+/**
+ * aa_dfa_null_transition - step to next state after null character
+ * @dfa: the dfa to match against
+ * @start: the state of the dfa to start matching in
+ *
+ * aa_dfa_null_transition transitions to the next state after a null
+ * character which is not used in standard matching and is only
+ * used to separate pairs.
+ */
+static inline unsigned int aa_dfa_null_transition(struct aa_dfa *dfa,
+						  unsigned int start)
+{
+	/* the null transition only needs the string's null terminator byte */
+	return aa_dfa_next(dfa, start, 0);
+}
+
+static inline bool path_mediated_fs(struct dentry *dentry)
+{
+	return !(dentry->d_sb->s_flags & SB_NOUSER);
+}
+
+
+struct counted_str {
+	struct kref count;
+	char name[];
+};
+
+#define str_to_counted(str) \
+	((struct counted_str *)(str - offsetof(struct counted_str, name)))
+
+#define __counted	/* atm just a notation */
+
+void aa_str_kref(struct kref *kref);
+char *aa_str_alloc(int size, gfp_t gfp);
+
+
+static inline __counted char *aa_get_str(__counted char *str)
+{
+	if (str)
+		kref_get(&(str_to_counted(str)->count));
+
+	return str;
+}
+
+static inline void aa_put_str(__counted char *str)
+{
+	if (str)
+		kref_put(&str_to_counted(str)->count, aa_str_kref);
+}
+
+
+/* struct aa_policy - common part of both namespaces and profiles
+ * @name: name of the object
+ * @hname - The hierarchical name
+ * @list: list policy object is on
+ * @profiles: head of the profiles list contained in the object
+ */
+struct aa_policy {
+	const char *name;
+	__counted char *hname;
+	struct list_head list;
+	struct list_head profiles;
+};
+
+/**
+ * basename - find the last component of an hname
+ * @name: hname to find the base profile name component of  (NOT NULL)
+ *
+ * Returns: the tail (base profile name) name component of an hname
+ */
+static inline const char *basename(const char *hname)
+{
+	char *split;
+
+	hname = strim((char *)hname);
+	for (split = strstr(hname, "//"); split; split = strstr(hname, "//"))
+		hname = split + 2;
+
+	return hname;
+}
+
+/**
+ * __policy_find - find a policy by @name on a policy list
+ * @head: list to search  (NOT NULL)
+ * @name: name to search for  (NOT NULL)
+ *
+ * Requires: rcu_read_lock be held
+ *
+ * Returns: unrefcounted policy that match @name or NULL if not found
+ */
+static inline struct aa_policy *__policy_find(struct list_head *head,
+					      const char *name)
+{
+	struct aa_policy *policy;
+
+	list_for_each_entry_rcu(policy, head, list) {
+		if (!strcmp(policy->name, name))
+			return policy;
+	}
+	return NULL;
+}
+
+/**
+ * __policy_strn_find - find a policy that's name matches @len chars of @str
+ * @head: list to search  (NOT NULL)
+ * @str: string to search for  (NOT NULL)
+ * @len: length of match required
+ *
+ * Requires: rcu_read_lock be held
+ *
+ * Returns: unrefcounted policy that match @str or NULL if not found
+ *
+ * if @len == strlen(@strlen) then this is equiv to __policy_find
+ * other wise it allows searching for policy by a partial match of name
+ */
+static inline struct aa_policy *__policy_strn_find(struct list_head *head,
+					    const char *str, int len)
+{
+	struct aa_policy *policy;
+
+	list_for_each_entry_rcu(policy, head, list) {
+		if (aa_strneq(policy->name, str, len))
+			return policy;
+	}
+
+	return NULL;
+}
+
+bool aa_policy_init(struct aa_policy *policy, const char *prefix,
+		    const char *name, gfp_t gfp);
+void aa_policy_destroy(struct aa_policy *policy);
+
+
+/*
+ * fn_label_build - abstract out the build of a label transition
+ * @L: label the transition is being computed for
+ * @P: profile parameter derived from L by this macro, can be passed to FN
+ * @GFP: memory allocation type to use
+ * @FN: fn to call for each profile transition. @P is set to the profile
+ *
+ * Returns: new label on success
+ *          ERR_PTR if build @FN fails
+ *          NULL if label_build fails due to low memory conditions
+ *
+ * @FN must return a label or ERR_PTR on failure. NULL is not allowed
+ */
+#define fn_label_build(L, P, GFP, FN)					\
+({									\
+	__label__ __cleanup, __done;					\
+	struct aa_label *__new_;					\
+									\
+	if ((L)->size > 1) {						\
+		/* TODO: add cache of transitions already done */	\
+		struct label_it __i;					\
+		int __j, __k, __count;					\
+		DEFINE_VEC(label, __lvec);				\
+		DEFINE_VEC(profile, __pvec);				\
+		if (vec_setup(label, __lvec, (L)->size, (GFP)))	{	\
+			__new_ = NULL;					\
+			goto __done;					\
+		}							\
+		__j = 0;						\
+		label_for_each(__i, (L), (P)) {				\
+			__new_ = (FN);					\
+			AA_BUG(!__new_);				\
+			if (IS_ERR(__new_))				\
+				goto __cleanup;				\
+			__lvec[__j++] = __new_;				\
+		}							\
+		for (__j = __count = 0; __j < (L)->size; __j++)		\
+			__count += __lvec[__j]->size;			\
+		if (!vec_setup(profile, __pvec, __count, (GFP))) {	\
+			for (__j = __k = 0; __j < (L)->size; __j++) {	\
+				label_for_each(__i, __lvec[__j], (P))	\
+					__pvec[__k++] = aa_get_profile(P); \
+			}						\
+			__count -= aa_vec_unique(__pvec, __count, 0);	\
+			if (__count > 1) {				\
+				__new_ = aa_vec_find_or_create_label(__pvec,\
+						     __count, (GFP));	\
+				/* only fails if out of Mem */		\
+				if (!__new_)				\
+					__new_ = NULL;			\
+			} else						\
+				__new_ = aa_get_label(&__pvec[0]->label); \
+			vec_cleanup(profile, __pvec, __count);		\
+		} else							\
+			__new_ = NULL;					\
+__cleanup:								\
+		vec_cleanup(label, __lvec, (L)->size);			\
+	} else {							\
+		(P) = labels_profile(L);				\
+		__new_ = (FN);						\
+	}								\
+__done:									\
+	if (!__new_)							\
+		AA_DEBUG("label build failed\n");			\
+	(__new_);							\
+})
+
+
+#define __fn_build_in_ns(NS, P, NS_FN, OTHER_FN)			\
+({									\
+	struct aa_label *__new;						\
+	if ((P)->ns != (NS))						\
+		__new = (OTHER_FN);					\
+	else								\
+		__new = (NS_FN);					\
+	(__new);							\
+})
+
+#define fn_label_build_in_ns(L, P, GFP, NS_FN, OTHER_FN)		\
+({									\
+	fn_label_build((L), (P), (GFP),					\
+		__fn_build_in_ns(labels_ns(L), (P), (NS_FN), (OTHER_FN))); \
+})
+
+#endif /* __AA_LIB_H */
diff --git a/security/apparmor/include/match.h b/security/apparmor/include/match.h
new file mode 100644
index 000000000..884489590
--- /dev/null
+++ b/security/apparmor/include/match.h
@@ -0,0 +1,196 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * AppArmor security module
+ *
+ * This file contains AppArmor policy dfa matching engine definitions.
+ *
+ * Copyright (C) 1998-2008 Novell/SUSE
+ * Copyright 2009-2012 Canonical Ltd.
+ */
+
+#ifndef __AA_MATCH_H
+#define __AA_MATCH_H
+
+#include <linux/kref.h>
+
+#define DFA_NOMATCH			0
+#define DFA_START			1
+
+
+/**
+ * The format used for transition tables is based on the GNU flex table
+ * file format (--tables-file option; see Table File Format in the flex
+ * info pages and the flex sources for documentation). The magic number
+ * used in the header is 0x1B5E783D instead of 0xF13C57B1 though, because
+ * new tables have been defined and others YY_ID_CHK (check) and YY_ID_DEF
+ * (default) tables are used slightly differently (see the apparmor-parser
+ * package).
+ *
+ *
+ * The data in the packed dfa is stored in network byte order, and the tables
+ * are arranged for flexibility.  We convert the table data to host native
+ * byte order.
+ *
+ * The dfa begins with a table set header, and is followed by the actual
+ * tables.
+ */
+
+#define YYTH_MAGIC	0x1B5E783D
+#define YYTH_FLAG_DIFF_ENCODE	1
+#define YYTH_FLAG_OOB_TRANS	2
+#define YYTH_FLAGS (YYTH_FLAG_DIFF_ENCODE | YYTH_FLAG_OOB_TRANS)
+
+#define MAX_OOB_SUPPORTED	1
+
+struct table_set_header {
+	u32 th_magic;		/* YYTH_MAGIC */
+	u32 th_hsize;
+	u32 th_ssize;
+	u16 th_flags;
+	char th_version[];
+};
+
+/* The YYTD_ID are one less than flex table mappings.  The flex id
+ * has 1 subtracted at table load time, this allows us to directly use the
+ * ID's as indexes.
+ */
+#define	YYTD_ID_ACCEPT	0
+#define YYTD_ID_BASE	1
+#define YYTD_ID_CHK	2
+#define YYTD_ID_DEF	3
+#define YYTD_ID_EC	4
+#define YYTD_ID_META	5
+#define YYTD_ID_ACCEPT2 6
+#define YYTD_ID_NXT	7
+#define YYTD_ID_TSIZE	8
+#define YYTD_ID_MAX	8
+
+#define YYTD_DATA8	1
+#define YYTD_DATA16	2
+#define YYTD_DATA32	4
+#define YYTD_DATA64	8
+
+/* ACCEPT & ACCEPT2 tables gets 6 dedicated flags, YYTD_DATAX define the
+ * first flags
+ */
+#define ACCEPT1_FLAGS(X) ((X) & 0x3f)
+#define ACCEPT2_FLAGS(X) ACCEPT1_FLAGS((X) >> YYTD_ID_ACCEPT2)
+#define TO_ACCEPT1_FLAG(X) ACCEPT1_FLAGS(X)
+#define TO_ACCEPT2_FLAG(X) (ACCEPT1_FLAGS(X) << YYTD_ID_ACCEPT2)
+#define DFA_FLAG_VERIFY_STATES 0x1000
+
+struct table_header {
+	u16 td_id;
+	u16 td_flags;
+	u32 td_hilen;
+	u32 td_lolen;
+	char td_data[];
+};
+
+#define DEFAULT_TABLE(DFA) ((u16 *)((DFA)->tables[YYTD_ID_DEF]->td_data))
+#define BASE_TABLE(DFA) ((u32 *)((DFA)->tables[YYTD_ID_BASE]->td_data))
+#define NEXT_TABLE(DFA) ((u16 *)((DFA)->tables[YYTD_ID_NXT]->td_data))
+#define CHECK_TABLE(DFA) ((u16 *)((DFA)->tables[YYTD_ID_CHK]->td_data))
+#define EQUIV_TABLE(DFA) ((u8 *)((DFA)->tables[YYTD_ID_EC]->td_data))
+#define ACCEPT_TABLE(DFA) ((u32 *)((DFA)->tables[YYTD_ID_ACCEPT]->td_data))
+#define ACCEPT_TABLE2(DFA) ((u32 *)((DFA)->tables[YYTD_ID_ACCEPT2]->td_data))
+
+struct aa_dfa {
+	struct kref count;
+	u16 flags;
+	u32 max_oob;
+	struct table_header *tables[YYTD_ID_TSIZE];
+};
+
+extern struct aa_dfa *nulldfa;
+extern struct aa_dfa *stacksplitdfa;
+
+#define byte_to_byte(X) (X)
+
+#define UNPACK_ARRAY(TABLE, BLOB, LEN, TTYPE, BTYPE, NTOHX)	\
+	do { \
+		typeof(LEN) __i; \
+		TTYPE *__t = (TTYPE *) TABLE; \
+		BTYPE *__b = (BTYPE *) BLOB; \
+		for (__i = 0; __i < LEN; __i++) { \
+			__t[__i] = NTOHX(__b[__i]); \
+		} \
+	} while (0)
+
+static inline size_t table_size(size_t len, size_t el_size)
+{
+	return ALIGN(sizeof(struct table_header) + len * el_size, 8);
+}
+
+int aa_setup_dfa_engine(void);
+void aa_teardown_dfa_engine(void);
+
+struct aa_dfa *aa_dfa_unpack(void *blob, size_t size, int flags);
+unsigned int aa_dfa_match_len(struct aa_dfa *dfa, unsigned int start,
+			      const char *str, int len);
+unsigned int aa_dfa_match(struct aa_dfa *dfa, unsigned int start,
+			  const char *str);
+unsigned int aa_dfa_next(struct aa_dfa *dfa, unsigned int state,
+			 const char c);
+unsigned int aa_dfa_outofband_transition(struct aa_dfa *dfa,
+					 unsigned int state);
+unsigned int aa_dfa_match_until(struct aa_dfa *dfa, unsigned int start,
+				const char *str, const char **retpos);
+unsigned int aa_dfa_matchn_until(struct aa_dfa *dfa, unsigned int start,
+				 const char *str, int n, const char **retpos);
+
+void aa_dfa_free_kref(struct kref *kref);
+
+#define WB_HISTORY_SIZE 24
+struct match_workbuf {
+	unsigned int count;
+	unsigned int pos;
+	unsigned int len;
+	unsigned int size;	/* power of 2, same as history size */
+	unsigned int history[WB_HISTORY_SIZE];
+};
+#define DEFINE_MATCH_WB(N)		\
+struct match_workbuf N = {		\
+	.count = 0,			\
+	.pos = 0,			\
+	.len = 0,			\
+}
+
+unsigned int aa_dfa_leftmatch(struct aa_dfa *dfa, unsigned int start,
+			      const char *str, unsigned int *count);
+
+/**
+ * aa_get_dfa - increment refcount on dfa @p
+ * @dfa: dfa  (MAYBE NULL)
+ *
+ * Returns: pointer to @dfa if @dfa is NULL will return NULL
+ * Requires: @dfa must be held with valid refcount when called
+ */
+static inline struct aa_dfa *aa_get_dfa(struct aa_dfa *dfa)
+{
+	if (dfa)
+		kref_get(&(dfa->count));
+
+	return dfa;
+}
+
+/**
+ * aa_put_dfa - put a dfa refcount
+ * @dfa: dfa to put refcount   (MAYBE NULL)
+ *
+ * Requires: if @dfa != NULL that a valid refcount be held
+ */
+static inline void aa_put_dfa(struct aa_dfa *dfa)
+{
+	if (dfa)
+		kref_put(&dfa->count, aa_dfa_free_kref);
+}
+
+#define MATCH_FLAG_DIFF_ENCODE 0x80000000
+#define MARK_DIFF_ENCODE 0x40000000
+#define MATCH_FLAG_OOB_TRANSITION 0x20000000
+#define MATCH_FLAGS_MASK 0xff000000
+#define MATCH_FLAGS_VALID (MATCH_FLAG_DIFF_ENCODE | MATCH_FLAG_OOB_TRANSITION)
+#define MATCH_FLAGS_INVALID (MATCH_FLAGS_MASK & ~MATCH_FLAGS_VALID)
+
+#endif /* __AA_MATCH_H */
diff --git a/security/apparmor/include/mount.h b/security/apparmor/include/mount.h
new file mode 100644
index 000000000..a710683b2
--- /dev/null
+++ b/security/apparmor/include/mount.h
@@ -0,0 +1,50 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * AppArmor security module
+ *
+ * This file contains AppArmor file mediation function definitions.
+ *
+ * Copyright 2017 Canonical Ltd.
+ */
+
+#ifndef __AA_MOUNT_H
+#define __AA_MOUNT_H
+
+#include <linux/fs.h>
+#include <linux/path.h>
+
+#include "domain.h"
+#include "policy.h"
+
+/* mount perms */
+#define AA_MAY_PIVOTROOT	0x01
+#define AA_MAY_MOUNT		0x02
+#define AA_MAY_UMOUNT		0x04
+#define AA_AUDIT_DATA		0x40
+#define AA_MNT_CONT_MATCH	0x40
+
+#define AA_MS_IGNORE_MASK (MS_KERNMOUNT | MS_NOSEC | MS_ACTIVE | MS_BORN)
+
+int aa_remount(struct aa_label *label, const struct path *path,
+	       unsigned long flags, void *data);
+
+int aa_bind_mount(struct aa_label *label, const struct path *path,
+		  const char *old_name, unsigned long flags);
+
+
+int aa_mount_change_type(struct aa_label *label, const struct path *path,
+			 unsigned long flags);
+
+int aa_move_mount(struct aa_label *label, const struct path *path,
+		  const char *old_name);
+
+int aa_new_mount(struct aa_label *label, const char *dev_name,
+		 const struct path *path, const char *type, unsigned long flags,
+		 void *data);
+
+int aa_umount(struct aa_label *label, struct vfsmount *mnt, int flags);
+
+int aa_pivotroot(struct aa_label *label, const struct path *old_path,
+		 const struct path *new_path);
+
+#endif /* __AA_MOUNT_H */
diff --git a/security/apparmor/include/net.h b/security/apparmor/include/net.h
new file mode 100644
index 000000000..2431c0118
--- /dev/null
+++ b/security/apparmor/include/net.h
@@ -0,0 +1,112 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * AppArmor security module
+ *
+ * This file contains AppArmor network mediation definitions.
+ *
+ * Copyright (C) 1998-2008 Novell/SUSE
+ * Copyright 2009-2017 Canonical Ltd.
+ */
+
+#ifndef __AA_NET_H
+#define __AA_NET_H
+
+#include <net/sock.h>
+#include <linux/path.h>
+
+#include "apparmorfs.h"
+#include "label.h"
+#include "perms.h"
+#include "policy.h"
+
+#define AA_MAY_SEND		AA_MAY_WRITE
+#define AA_MAY_RECEIVE		AA_MAY_READ
+
+#define AA_MAY_SHUTDOWN		AA_MAY_DELETE
+
+#define AA_MAY_CONNECT		AA_MAY_OPEN
+#define AA_MAY_ACCEPT		0x00100000
+
+#define AA_MAY_BIND		0x00200000
+#define AA_MAY_LISTEN		0x00400000
+
+#define AA_MAY_SETOPT		0x01000000
+#define AA_MAY_GETOPT		0x02000000
+
+#define NET_PERMS_MASK (AA_MAY_SEND | AA_MAY_RECEIVE | AA_MAY_CREATE |    \
+			AA_MAY_SHUTDOWN | AA_MAY_BIND | AA_MAY_LISTEN |	  \
+			AA_MAY_CONNECT | AA_MAY_ACCEPT | AA_MAY_SETATTR | \
+			AA_MAY_GETATTR | AA_MAY_SETOPT | AA_MAY_GETOPT)
+
+#define NET_FS_PERMS (AA_MAY_SEND | AA_MAY_RECEIVE | AA_MAY_CREATE |	\
+		      AA_MAY_SHUTDOWN | AA_MAY_CONNECT | AA_MAY_RENAME |\
+		      AA_MAY_SETATTR | AA_MAY_GETATTR | AA_MAY_CHMOD |	\
+		      AA_MAY_CHOWN | AA_MAY_CHGRP | AA_MAY_LOCK |	\
+		      AA_MAY_MPROT)
+
+#define NET_PEER_MASK (AA_MAY_SEND | AA_MAY_RECEIVE | AA_MAY_CONNECT |	\
+		       AA_MAY_ACCEPT)
+struct aa_sk_ctx {
+	struct aa_label *label;
+	struct aa_label *peer;
+};
+
+#define SK_CTX(X) ((X)->sk_security)
+#define SOCK_ctx(X) SOCK_INODE(X)->i_security
+#define DEFINE_AUDIT_NET(NAME, OP, SK, F, T, P)				  \
+	struct lsm_network_audit NAME ## _net = { .sk = (SK),		  \
+						  .family = (F)};	  \
+	DEFINE_AUDIT_DATA(NAME,						  \
+			  ((SK) && (F) != AF_UNIX) ? LSM_AUDIT_DATA_NET : \
+						     LSM_AUDIT_DATA_NONE, \
+			  OP);						  \
+	NAME.u.net = &(NAME ## _net);					  \
+	aad(&NAME)->net.type = (T);					  \
+	aad(&NAME)->net.protocol = (P)
+
+#define DEFINE_AUDIT_SK(NAME, OP, SK)					\
+	DEFINE_AUDIT_NET(NAME, OP, SK, (SK)->sk_family, (SK)->sk_type,	\
+			 (SK)->sk_protocol)
+
+
+#define af_select(FAMILY, FN, DEF_FN)		\
+({						\
+	int __e;				\
+	switch ((FAMILY)) {			\
+	default:				\
+		__e = DEF_FN;			\
+	}					\
+	__e;					\
+})
+
+struct aa_secmark {
+	u8 audit;
+	u8 deny;
+	u32 secid;
+	char *label;
+};
+
+extern struct aa_sfs_entry aa_sfs_entry_network[];
+
+void audit_net_cb(struct audit_buffer *ab, void *va);
+int aa_profile_af_perm(struct aa_profile *profile, struct common_audit_data *sa,
+		       u32 request, u16 family, int type);
+int aa_af_perm(struct aa_label *label, const char *op, u32 request, u16 family,
+	       int type, int protocol);
+static inline int aa_profile_af_sk_perm(struct aa_profile *profile,
+					struct common_audit_data *sa,
+					u32 request,
+					struct sock *sk)
+{
+	return aa_profile_af_perm(profile, sa, request, sk->sk_family,
+				  sk->sk_type);
+}
+int aa_sk_perm(const char *op, u32 request, struct sock *sk);
+
+int aa_sock_file_perm(struct aa_label *label, const char *op, u32 request,
+		      struct socket *sock);
+
+int apparmor_secmark_check(struct aa_label *label, char *op, u32 request,
+			   u32 secid, struct sock *sk);
+
+#endif /* __AA_NET_H */
diff --git a/security/apparmor/include/path.h b/security/apparmor/include/path.h
new file mode 100644
index 000000000..44a7945fb
--- /dev/null
+++ b/security/apparmor/include/path.h
@@ -0,0 +1,32 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * AppArmor security module
+ *
+ * This file contains AppArmor basic path manipulation function definitions.
+ *
+ * Copyright (C) 1998-2008 Novell/SUSE
+ * Copyright 2009-2010 Canonical Ltd.
+ */
+
+#ifndef __AA_PATH_H
+#define __AA_PATH_H
+
+enum path_flags {
+	PATH_IS_DIR = 0x1,		/* path is a directory */
+	PATH_CONNECT_PATH = 0x4,	/* connect disconnected paths to / */
+	PATH_CHROOT_REL = 0x8,		/* do path lookup relative to chroot */
+	PATH_CHROOT_NSCONNECT = 0x10,	/* connect paths that are at ns root */
+
+	PATH_DELEGATE_DELETED = 0x08000, /* delegate deleted files */
+	PATH_MEDIATE_DELETED = 0x10000,	 /* mediate deleted paths */
+};
+
+int aa_path_name(const struct path *path, int flags, char *buffer,
+		 const char **name, const char **info,
+		 const char *disconnected);
+
+#define IN_ATOMIC true
+char *aa_get_buffer(bool in_atomic);
+void aa_put_buffer(char *buf);
+
+#endif /* __AA_PATH_H */
diff --git a/security/apparmor/include/perms.h b/security/apparmor/include/perms.h
new file mode 100644
index 000000000..13f20c598
--- /dev/null
+++ b/security/apparmor/include/perms.h
@@ -0,0 +1,156 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * AppArmor security module
+ *
+ * This file contains AppArmor basic permission sets definitions.
+ *
+ * Copyright 2017 Canonical Ltd.
+ */
+
+#ifndef __AA_PERM_H
+#define __AA_PERM_H
+
+#include <linux/fs.h>
+#include "label.h"
+
+#define AA_MAY_EXEC		MAY_EXEC
+#define AA_MAY_WRITE		MAY_WRITE
+#define AA_MAY_READ		MAY_READ
+#define AA_MAY_APPEND		MAY_APPEND
+
+#define AA_MAY_CREATE		0x0010
+#define AA_MAY_DELETE		0x0020
+#define AA_MAY_OPEN		0x0040
+#define AA_MAY_RENAME		0x0080		/* pair */
+
+#define AA_MAY_SETATTR		0x0100		/* meta write */
+#define AA_MAY_GETATTR		0x0200		/* meta read */
+#define AA_MAY_SETCRED		0x0400		/* security cred/attr */
+#define AA_MAY_GETCRED		0x0800
+
+#define AA_MAY_CHMOD		0x1000		/* pair */
+#define AA_MAY_CHOWN		0x2000		/* pair */
+#define AA_MAY_CHGRP		0x4000		/* pair */
+#define AA_MAY_LOCK		0x8000		/* LINK_SUBSET overlaid */
+
+#define AA_EXEC_MMAP		0x00010000
+#define AA_MAY_MPROT		0x00020000	/* extend conditions */
+#define AA_MAY_LINK		0x00040000	/* pair */
+#define AA_MAY_SNAPSHOT		0x00080000	/* pair */
+
+#define AA_MAY_DELEGATE
+#define AA_CONT_MATCH		0x08000000
+
+#define AA_MAY_STACK		0x10000000
+#define AA_MAY_ONEXEC		0x20000000 /* either stack or change_profile */
+#define AA_MAY_CHANGE_PROFILE	0x40000000
+#define AA_MAY_CHANGEHAT	0x80000000
+
+#define AA_LINK_SUBSET		AA_MAY_LOCK	/* overlaid */
+
+
+#define PERMS_CHRS_MASK (MAY_READ | MAY_WRITE | AA_MAY_CREATE |		\
+			 AA_MAY_DELETE | AA_MAY_LINK | AA_MAY_LOCK |	\
+			 AA_MAY_EXEC | AA_EXEC_MMAP | AA_MAY_APPEND)
+
+#define PERMS_NAMES_MASK (PERMS_CHRS_MASK | AA_MAY_OPEN | AA_MAY_RENAME |     \
+			  AA_MAY_SETATTR | AA_MAY_GETATTR | AA_MAY_SETCRED | \
+			  AA_MAY_GETCRED | AA_MAY_CHMOD | AA_MAY_CHOWN | \
+			  AA_MAY_CHGRP | AA_MAY_MPROT | AA_MAY_SNAPSHOT | \
+			  AA_MAY_STACK | AA_MAY_ONEXEC |		\
+			  AA_MAY_CHANGE_PROFILE | AA_MAY_CHANGEHAT)
+
+extern const char aa_file_perm_chrs[];
+extern const char *aa_file_perm_names[];
+
+struct aa_perms {
+	u32 allow;
+	u32 audit;	/* set only when allow is set */
+
+	u32 deny;	/* explicit deny, or conflict if allow also set */
+	u32 quiet;	/* set only when ~allow | deny */
+	u32 kill;	/* set only when ~allow | deny */
+	u32 stop;	/* set only when ~allow | deny */
+
+	u32 complain;	/* accumulates only used when ~allow & ~deny */
+	u32 cond;	/* set only when ~allow and ~deny */
+
+	u32 hide;	/* set only when  ~allow | deny */
+	u32 prompt;	/* accumulates only used when ~allow & ~deny */
+
+	/* Reserved:
+	 * u32 subtree;	/ * set only when allow is set * /
+	 */
+	u16 xindex;
+};
+
+#define ALL_PERMS_MASK 0xffffffff
+extern struct aa_perms nullperms;
+extern struct aa_perms allperms;
+
+
+#define xcheck(FN1, FN2)	\
+({				\
+	int e, error = FN1;	\
+	e = FN2;		\
+	if (e)			\
+		error = e;	\
+	error;			\
+})
+
+
+/*
+ * TODO: update for labels pointing to labels instead of profiles
+ * TODO: optimize the walk, currently does subwalk of L2 for each P in L1
+ * gah this doesn't allow for label compound check!!!!
+ */
+#define xcheck_ns_profile_profile(P1, P2, FN, args...)		\
+({								\
+	int ____e = 0;						\
+	if (P1->ns == P2->ns)					\
+		____e = FN((P1), (P2), args);			\
+	(____e);						\
+})
+
+#define xcheck_ns_profile_label(P, L, FN, args...)		\
+({								\
+	struct aa_profile *__p2;				\
+	fn_for_each((L), __p2,					\
+		    xcheck_ns_profile_profile((P), __p2, (FN), args));	\
+})
+
+#define xcheck_ns_labels(L1, L2, FN, args...)			\
+({								\
+	struct aa_profile *__p1;				\
+	fn_for_each((L1), __p1, FN(__p1, (L2), args));		\
+})
+
+/* Do the cross check but applying FN at the profiles level */
+#define xcheck_labels_profiles(L1, L2, FN, args...)		\
+	xcheck_ns_labels((L1), (L2), xcheck_ns_profile_label, (FN), args)
+
+#define xcheck_labels(L1, L2, P, FN1, FN2)			\
+	xcheck(fn_for_each((L1), (P), (FN1)), fn_for_each((L2), (P), (FN2)))
+
+
+void aa_perm_mask_to_str(char *str, size_t str_size, const char *chrs,
+			 u32 mask);
+void aa_audit_perm_names(struct audit_buffer *ab, const char * const *names,
+			 u32 mask);
+void aa_audit_perm_mask(struct audit_buffer *ab, u32 mask, const char *chrs,
+			u32 chrsmask, const char * const *names, u32 namesmask);
+void aa_apply_modes_to_perms(struct aa_profile *profile,
+			     struct aa_perms *perms);
+void aa_compute_perms(struct aa_dfa *dfa, unsigned int state,
+		      struct aa_perms *perms);
+void aa_perms_accum(struct aa_perms *accum, struct aa_perms *addend);
+void aa_perms_accum_raw(struct aa_perms *accum, struct aa_perms *addend);
+void aa_profile_match_label(struct aa_profile *profile, struct aa_label *label,
+			    int type, u32 request, struct aa_perms *perms);
+int aa_profile_label_perm(struct aa_profile *profile, struct aa_profile *target,
+			  u32 request, int type, u32 *deny,
+			  struct common_audit_data *sa);
+int aa_check_perms(struct aa_profile *profile, struct aa_perms *perms,
+		   u32 request, struct common_audit_data *sa,
+		   void (*cb)(struct audit_buffer *, void *));
+#endif /* __AA_PERM_H */
diff --git a/security/apparmor/include/policy.h b/security/apparmor/include/policy.h
new file mode 100644
index 000000000..b5aa4231a
--- /dev/null
+++ b/security/apparmor/include/policy.h
@@ -0,0 +1,309 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * AppArmor security module
+ *
+ * This file contains AppArmor policy definitions.
+ *
+ * Copyright (C) 1998-2008 Novell/SUSE
+ * Copyright 2009-2010 Canonical Ltd.
+ */
+
+#ifndef __AA_POLICY_H
+#define __AA_POLICY_H
+
+#include <linux/capability.h>
+#include <linux/cred.h>
+#include <linux/kref.h>
+#include <linux/rhashtable.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/socket.h>
+
+#include "apparmor.h"
+#include "audit.h"
+#include "capability.h"
+#include "domain.h"
+#include "file.h"
+#include "lib.h"
+#include "label.h"
+#include "net.h"
+#include "perms.h"
+#include "resource.h"
+
+
+struct aa_ns;
+
+extern int unprivileged_userns_apparmor_policy;
+
+extern const char *const aa_profile_mode_names[];
+#define APPARMOR_MODE_NAMES_MAX_INDEX 4
+
+#define PROFILE_MODE(_profile, _mode)		\
+	((aa_g_profile_mode == (_mode)) ||	\
+	 ((_profile)->mode == (_mode)))
+
+#define COMPLAIN_MODE(_profile)	PROFILE_MODE((_profile), APPARMOR_COMPLAIN)
+
+#define KILL_MODE(_profile) PROFILE_MODE((_profile), APPARMOR_KILL)
+
+#define PROFILE_IS_HAT(_profile) ((_profile)->label.flags & FLAG_HAT)
+
+#define profile_is_stale(_profile) (label_is_stale(&(_profile)->label))
+
+#define on_list_rcu(X) (!list_empty(X) && (X)->prev != LIST_POISON2)
+
+/*
+ * FIXME: currently need a clean way to replace and remove profiles as a
+ * set.  It should be done at the namespace level.
+ * Either, with a set of profiles loaded at the namespace level or via
+ * a mark and remove marked interface.
+ */
+enum profile_mode {
+	APPARMOR_ENFORCE,	/* enforce access rules */
+	APPARMOR_COMPLAIN,	/* allow and log access violations */
+	APPARMOR_KILL,		/* kill task on access violation */
+	APPARMOR_UNCONFINED,	/* profile set to unconfined */
+};
+
+
+/* struct aa_policydb - match engine for a policy
+ * dfa: dfa pattern match
+ * start: set of start states for the different classes of data
+ */
+struct aa_policydb {
+	/* Generic policy DFA specific rule types will be subsections of it */
+	struct aa_dfa *dfa;
+	unsigned int start[AA_CLASS_LAST + 1];
+
+};
+
+/* struct aa_data - generic data structure
+ * key: name for retrieving this data
+ * size: size of data in bytes
+ * data: binary data
+ * head: reserved for rhashtable
+ */
+struct aa_data {
+	char *key;
+	u32 size;
+	char *data;
+	struct rhash_head head;
+};
+
+
+/* struct aa_profile - basic confinement data
+ * @base - base components of the profile (name, refcount, lists, lock ...)
+ * @label - label this profile is an extension of
+ * @parent: parent of profile
+ * @ns: namespace the profile is in
+ * @rename: optional profile name that this profile renamed
+ * @attach: human readable attachment string
+ * @xmatch: optional extended matching for unconfined executables names
+ * @xmatch_len: xmatch prefix len, used to determine xmatch priority
+ * @audit: the auditing mode of the profile
+ * @mode: the enforcement mode of the profile
+ * @path_flags: flags controlling path generation behavior
+ * @disconnected: what to prepend if attach_disconnected is specified
+ * @size: the memory consumed by this profiles rules
+ * @policy: general match rules governing policy
+ * @file: The set of rules governing basic file access and domain transitions
+ * @caps: capabilities for the profile
+ * @rlimits: rlimits for the profile
+ *
+ * @dents: dentries for the profiles file entries in apparmorfs
+ * @dirname: name of the profile dir in apparmorfs
+ * @data: hashtable for free-form policy aa_data
+ *
+ * The AppArmor profile contains the basic confinement data.  Each profile
+ * has a name, and exists in a namespace.  The @name and @exec_match are
+ * used to determine profile attachment against unconfined tasks.  All other
+ * attachments are determined by profile X transition rules.
+ *
+ * Profiles have a hierarchy where hats and children profiles keep
+ * a reference to their parent.
+ *
+ * Profile names can not begin with a : and can not contain the \0
+ * character.  If a profile name begins with / it will be considered when
+ * determining profile attachment on "unconfined" tasks.
+ */
+struct aa_profile {
+	struct aa_policy base;
+	struct aa_profile __rcu *parent;
+
+	struct aa_ns *ns;
+	const char *rename;
+
+	const char *attach;
+	struct aa_dfa *xmatch;
+	unsigned int xmatch_len;
+	enum audit_mode audit;
+	long mode;
+	u32 path_flags;
+	const char *disconnected;
+	int size;
+
+	struct aa_policydb policy;
+	struct aa_file_rules file;
+	struct aa_caps caps;
+
+	int xattr_count;
+	char **xattrs;
+
+	struct aa_rlimit rlimits;
+
+	int secmark_count;
+	struct aa_secmark *secmark;
+
+	struct aa_loaddata *rawdata;
+	unsigned char *hash;
+	char *dirname;
+	struct dentry *dents[AAFS_PROF_SIZEOF];
+	struct rhashtable *data;
+	struct aa_label label;
+};
+
+extern enum profile_mode aa_g_profile_mode;
+
+#define AA_MAY_LOAD_POLICY	AA_MAY_APPEND
+#define AA_MAY_REPLACE_POLICY	AA_MAY_WRITE
+#define AA_MAY_REMOVE_POLICY	AA_MAY_DELETE
+
+#define profiles_ns(P) ((P)->ns)
+#define name_is_shared(A, B) ((A)->hname && (A)->hname == (B)->hname)
+
+void aa_add_profile(struct aa_policy *common, struct aa_profile *profile);
+
+
+void aa_free_proxy_kref(struct kref *kref);
+struct aa_profile *aa_alloc_profile(const char *name, struct aa_proxy *proxy,
+				    gfp_t gfp);
+struct aa_profile *aa_new_null_profile(struct aa_profile *parent, bool hat,
+				       const char *base, gfp_t gfp);
+void aa_free_profile(struct aa_profile *profile);
+void aa_free_profile_kref(struct kref *kref);
+struct aa_profile *aa_find_child(struct aa_profile *parent, const char *name);
+struct aa_profile *aa_lookupn_profile(struct aa_ns *ns, const char *hname,
+				      size_t n);
+struct aa_profile *aa_lookup_profile(struct aa_ns *ns, const char *name);
+struct aa_profile *aa_fqlookupn_profile(struct aa_label *base,
+					const char *fqname, size_t n);
+struct aa_profile *aa_match_profile(struct aa_ns *ns, const char *name);
+
+ssize_t aa_replace_profiles(struct aa_ns *view, struct aa_label *label,
+			    u32 mask, struct aa_loaddata *udata);
+ssize_t aa_remove_profiles(struct aa_ns *view, struct aa_label *label,
+			   char *name, size_t size);
+void __aa_profile_list_release(struct list_head *head);
+
+#define PROF_ADD 1
+#define PROF_REPLACE 0
+
+#define profile_unconfined(X) ((X)->mode == APPARMOR_UNCONFINED)
+
+/**
+ * aa_get_newest_profile - simple wrapper fn to wrap the label version
+ * @p: profile (NOT NULL)
+ *
+ * Returns refcount to newest version of the profile (maybe @p)
+ *
+ * Requires: @p must be held with a valid refcount
+ */
+static inline struct aa_profile *aa_get_newest_profile(struct aa_profile *p)
+{
+	return labels_profile(aa_get_newest_label(&p->label));
+}
+
+static inline unsigned int PROFILE_MEDIATES(struct aa_profile *profile,
+					    unsigned char class)
+{
+	if (class <= AA_CLASS_LAST)
+		return profile->policy.start[class];
+	else
+		return aa_dfa_match_len(profile->policy.dfa,
+					profile->policy.start[0], &class, 1);
+}
+
+static inline unsigned int PROFILE_MEDIATES_AF(struct aa_profile *profile,
+					       u16 AF) {
+	unsigned int state = PROFILE_MEDIATES(profile, AA_CLASS_NET);
+	__be16 be_af = cpu_to_be16(AF);
+
+	if (!state)
+		return 0;
+	return aa_dfa_match_len(profile->policy.dfa, state, (char *) &be_af, 2);
+}
+
+/**
+ * aa_get_profile - increment refcount on profile @p
+ * @p: profile  (MAYBE NULL)
+ *
+ * Returns: pointer to @p if @p is NULL will return NULL
+ * Requires: @p must be held with valid refcount when called
+ */
+static inline struct aa_profile *aa_get_profile(struct aa_profile *p)
+{
+	if (p)
+		kref_get(&(p->label.count));
+
+	return p;
+}
+
+/**
+ * aa_get_profile_not0 - increment refcount on profile @p found via lookup
+ * @p: profile  (MAYBE NULL)
+ *
+ * Returns: pointer to @p if @p is NULL will return NULL
+ * Requires: @p must be held with valid refcount when called
+ */
+static inline struct aa_profile *aa_get_profile_not0(struct aa_profile *p)
+{
+	if (p && kref_get_unless_zero(&p->label.count))
+		return p;
+
+	return NULL;
+}
+
+/**
+ * aa_get_profile_rcu - increment a refcount profile that can be replaced
+ * @p: pointer to profile that can be replaced (NOT NULL)
+ *
+ * Returns: pointer to a refcounted profile.
+ *     else NULL if no profile
+ */
+static inline struct aa_profile *aa_get_profile_rcu(struct aa_profile __rcu **p)
+{
+	struct aa_profile *c;
+
+	rcu_read_lock();
+	do {
+		c = rcu_dereference(*p);
+	} while (c && !kref_get_unless_zero(&c->label.count));
+	rcu_read_unlock();
+
+	return c;
+}
+
+/**
+ * aa_put_profile - decrement refcount on profile @p
+ * @p: profile  (MAYBE NULL)
+ */
+static inline void aa_put_profile(struct aa_profile *p)
+{
+	if (p)
+		kref_put(&p->label.count, aa_label_kref);
+}
+
+static inline int AUDIT_MODE(struct aa_profile *profile)
+{
+	if (aa_g_audit != AUDIT_NORMAL)
+		return aa_g_audit;
+
+	return profile->audit;
+}
+
+bool policy_view_capable(struct aa_ns *ns);
+bool policy_admin_capable(struct aa_ns *ns);
+int aa_may_manage_policy(struct aa_label *label, struct aa_ns *ns,
+			 u32 mask);
+
+#endif /* __AA_POLICY_H */
diff --git a/security/apparmor/include/policy_ns.h b/security/apparmor/include/policy_ns.h
new file mode 100644
index 000000000..3df6f8049
--- /dev/null
+++ b/security/apparmor/include/policy_ns.h
@@ -0,0 +1,164 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * AppArmor security module
+ *
+ * This file contains AppArmor policy definitions.
+ *
+ * Copyright (C) 1998-2008 Novell/SUSE
+ * Copyright 2009-2017 Canonical Ltd.
+ */
+
+#ifndef __AA_NAMESPACE_H
+#define __AA_NAMESPACE_H
+
+#include <linux/kref.h>
+
+#include "apparmor.h"
+#include "apparmorfs.h"
+#include "label.h"
+#include "policy.h"
+
+
+/* struct aa_ns_acct - accounting of profiles in namespace
+ * @max_size: maximum space allowed for all profiles in namespace
+ * @max_count: maximum number of profiles that can be in this namespace
+ * @size: current size of profiles
+ * @count: current count of profiles (includes null profiles)
+ */
+struct aa_ns_acct {
+	int max_size;
+	int max_count;
+	int size;
+	int count;
+};
+
+/* struct aa_ns - namespace for a set of profiles
+ * @base: common policy
+ * @parent: parent of namespace
+ * @lock: lock for modifying the object
+ * @acct: accounting for the namespace
+ * @unconfined: special unconfined profile for the namespace
+ * @sub_ns: list of namespaces under the current namespace.
+ * @uniq_null: uniq value used for null learning profiles
+ * @uniq_id: a unique id count for the profiles in the namespace
+ * @level: level of ns within the tree hierarchy
+ * @dents: dentries for the namespaces file entries in apparmorfs
+ *
+ * An aa_ns defines the set profiles that are searched to determine which
+ * profile to attach to a task.  Profiles can not be shared between aa_ns
+ * and profile names within a namespace are guaranteed to be unique.  When
+ * profiles in separate namespaces have the same name they are NOT considered
+ * to be equivalent.
+ *
+ * Namespaces are hierarchical and only namespaces and profiles below the
+ * current namespace are visible.
+ *
+ * Namespace names must be unique and can not contain the characters :/\0
+ */
+struct aa_ns {
+	struct aa_policy base;
+	struct aa_ns *parent;
+	struct mutex lock;
+	struct aa_ns_acct acct;
+	struct aa_profile *unconfined;
+	struct list_head sub_ns;
+	atomic_t uniq_null;
+	long uniq_id;
+	int level;
+	long revision;
+	wait_queue_head_t wait;
+
+	struct aa_labelset labels;
+	struct list_head rawdata_list;
+
+	struct dentry *dents[AAFS_NS_SIZEOF];
+};
+
+extern struct aa_ns *root_ns;
+
+extern const char *aa_hidden_ns_name;
+
+#define ns_unconfined(NS) (&(NS)->unconfined->label)
+
+bool aa_ns_visible(struct aa_ns *curr, struct aa_ns *view, bool subns);
+const char *aa_ns_name(struct aa_ns *parent, struct aa_ns *child, bool subns);
+void aa_free_ns(struct aa_ns *ns);
+int aa_alloc_root_ns(void);
+void aa_free_root_ns(void);
+void aa_free_ns_kref(struct kref *kref);
+
+struct aa_ns *aa_find_ns(struct aa_ns *root, const char *name);
+struct aa_ns *aa_findn_ns(struct aa_ns *root, const char *name, size_t n);
+struct aa_ns *__aa_lookupn_ns(struct aa_ns *view, const char *hname, size_t n);
+struct aa_ns *aa_lookupn_ns(struct aa_ns *view, const char *name, size_t n);
+struct aa_ns *__aa_find_or_create_ns(struct aa_ns *parent, const char *name,
+				     struct dentry *dir);
+struct aa_ns *aa_prepare_ns(struct aa_ns *root, const char *name);
+void __aa_remove_ns(struct aa_ns *ns);
+
+static inline struct aa_profile *aa_deref_parent(struct aa_profile *p)
+{
+	return rcu_dereference_protected(p->parent,
+					 mutex_is_locked(&p->ns->lock));
+}
+
+/**
+ * aa_get_ns - increment references count on @ns
+ * @ns: namespace to increment reference count of (MAYBE NULL)
+ *
+ * Returns: pointer to @ns, if @ns is NULL returns NULL
+ * Requires: @ns must be held with valid refcount when called
+ */
+static inline struct aa_ns *aa_get_ns(struct aa_ns *ns)
+{
+	if (ns)
+		aa_get_profile(ns->unconfined);
+
+	return ns;
+}
+
+/**
+ * aa_put_ns - decrement refcount on @ns
+ * @ns: namespace to put reference of
+ *
+ * Decrement reference count of @ns and if no longer in use free it
+ */
+static inline void aa_put_ns(struct aa_ns *ns)
+{
+	if (ns)
+		aa_put_profile(ns->unconfined);
+}
+
+/**
+ * __aa_findn_ns - find a namespace on a list by @name
+ * @head: list to search for namespace on  (NOT NULL)
+ * @name: name of namespace to look for  (NOT NULL)
+ * @n: length of @name
+ * Returns: unrefcounted namespace
+ *
+ * Requires: rcu_read_lock be held
+ */
+static inline struct aa_ns *__aa_findn_ns(struct list_head *head,
+					  const char *name, size_t n)
+{
+	return (struct aa_ns *)__policy_strn_find(head, name, n);
+}
+
+static inline struct aa_ns *__aa_find_ns(struct list_head *head,
+					 const char *name)
+{
+	return __aa_findn_ns(head, name, strlen(name));
+}
+
+static inline struct aa_ns *__aa_lookup_ns(struct aa_ns *base,
+					   const char *hname)
+{
+	return __aa_lookupn_ns(base, hname, strlen(hname));
+}
+
+static inline struct aa_ns *aa_lookup_ns(struct aa_ns *view, const char *name)
+{
+	return aa_lookupn_ns(view, name, strlen(name));
+}
+
+#endif /* AA_NAMESPACE_H */
diff --git a/security/apparmor/include/policy_unpack.h b/security/apparmor/include/policy_unpack.h
new file mode 100644
index 000000000..e0e1ca7eb
--- /dev/null
+++ b/security/apparmor/include/policy_unpack.h
@@ -0,0 +1,127 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * AppArmor security module
+ *
+ * This file contains AppArmor policy loading interface function definitions.
+ *
+ * Copyright (C) 1998-2008 Novell/SUSE
+ * Copyright 2009-2010 Canonical Ltd.
+ */
+
+#ifndef __POLICY_INTERFACE_H
+#define __POLICY_INTERFACE_H
+
+#include <linux/list.h>
+#include <linux/kref.h>
+#include <linux/dcache.h>
+#include <linux/workqueue.h>
+
+struct aa_load_ent {
+	struct list_head list;
+	struct aa_profile *new;
+	struct aa_profile *old;
+	struct aa_profile *rename;
+	const char *ns_name;
+};
+
+void aa_load_ent_free(struct aa_load_ent *ent);
+struct aa_load_ent *aa_load_ent_alloc(void);
+
+#define PACKED_FLAG_HAT		1
+
+#define PACKED_MODE_ENFORCE	0
+#define PACKED_MODE_COMPLAIN	1
+#define PACKED_MODE_KILL	2
+#define PACKED_MODE_UNCONFINED	3
+
+struct aa_ns;
+
+enum {
+	AAFS_LOADDATA_ABI = 0,
+	AAFS_LOADDATA_REVISION,
+	AAFS_LOADDATA_HASH,
+	AAFS_LOADDATA_DATA,
+	AAFS_LOADDATA_COMPRESSED_SIZE,
+	AAFS_LOADDATA_DIR,		/* must be last actual entry */
+	AAFS_LOADDATA_NDENTS		/* count of entries */
+};
+
+/*
+ * struct aa_loaddata - buffer of policy raw_data set
+ *
+ * there is no loaddata ref for being on ns list, nor a ref from
+ * d_inode(@dentry) when grab a ref from these, @ns->lock must be held
+ * && __aa_get_loaddata() needs to be used, and the return value
+ * checked, if NULL the loaddata is already being reaped and should be
+ * considered dead.
+ */
+struct aa_loaddata {
+	struct kref count;
+	struct list_head list;
+	struct work_struct work;
+	struct dentry *dents[AAFS_LOADDATA_NDENTS];
+	struct aa_ns *ns;
+	char *name;
+	size_t size;			/* the original size of the payload */
+	size_t compressed_size;		/* the compressed size of the payload */
+	long revision;			/* the ns policy revision this caused */
+	int abi;
+	unsigned char *hash;
+
+	/* Pointer to payload. If @compressed_size > 0, then this is the
+	 * compressed version of the payload, else it is the uncompressed
+	 * version (with the size indicated by @size).
+	 */
+	char *data;
+};
+
+int aa_unpack(struct aa_loaddata *udata, struct list_head *lh, const char **ns);
+
+/**
+ * __aa_get_loaddata - get a reference count to uncounted data reference
+ * @data: reference to get a count on
+ *
+ * Returns: pointer to reference OR NULL if race is lost and reference is
+ *          being repeated.
+ * Requires: @data->ns->lock held, and the return code MUST be checked
+ *
+ * Use only from inode->i_private and @data->list found references
+ */
+static inline struct aa_loaddata *
+__aa_get_loaddata(struct aa_loaddata *data)
+{
+	if (data && kref_get_unless_zero(&(data->count)))
+		return data;
+
+	return NULL;
+}
+
+/**
+ * aa_get_loaddata - get a reference count from a counted data reference
+ * @data: reference to get a count on
+ *
+ * Returns: point to reference
+ * Requires: @data to have a valid reference count on it. It is a bug
+ *           if the race to reap can be encountered when it is used.
+ */
+static inline struct aa_loaddata *
+aa_get_loaddata(struct aa_loaddata *data)
+{
+	struct aa_loaddata *tmp = __aa_get_loaddata(data);
+
+	AA_BUG(data && !tmp);
+
+	return tmp;
+}
+
+void __aa_loaddata_update(struct aa_loaddata *data, long revision);
+bool aa_rawdata_eq(struct aa_loaddata *l, struct aa_loaddata *r);
+void aa_loaddata_kref(struct kref *kref);
+struct aa_loaddata *aa_loaddata_alloc(size_t size);
+static inline void aa_put_loaddata(struct aa_loaddata *data)
+{
+	if (data)
+		kref_put(&data->count, aa_loaddata_kref);
+}
+
+#endif /* __POLICY_INTERFACE_H */
diff --git a/security/apparmor/include/procattr.h b/security/apparmor/include/procattr.h
new file mode 100644
index 000000000..31689437e
--- /dev/null
+++ b/security/apparmor/include/procattr.h
@@ -0,0 +1,17 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * AppArmor security module
+ *
+ * This file contains AppArmor /proc/<pid>/attr/ interface function definitions.
+ *
+ * Copyright (C) 1998-2008 Novell/SUSE
+ * Copyright 2009-2010 Canonical Ltd.
+ */
+
+#ifndef __AA_PROCATTR_H
+#define __AA_PROCATTR_H
+
+int aa_getprocattr(struct aa_label *label, char **string);
+int aa_setprocattr_changehat(char *args, size_t size, int flags);
+
+#endif /* __AA_PROCATTR_H */
diff --git a/security/apparmor/include/resource.h b/security/apparmor/include/resource.h
new file mode 100644
index 000000000..961d85d32
--- /dev/null
+++ b/security/apparmor/include/resource.h
@@ -0,0 +1,46 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * AppArmor security module
+ *
+ * This file contains AppArmor resource limits function definitions.
+ *
+ * Copyright (C) 1998-2008 Novell/SUSE
+ * Copyright 2009-2010 Canonical Ltd.
+ */
+
+#ifndef __AA_RESOURCE_H
+#define __AA_RESOURCE_H
+
+#include <linux/resource.h>
+#include <linux/sched.h>
+
+#include "apparmorfs.h"
+
+struct aa_profile;
+
+/* struct aa_rlimit - rlimit settings for the profile
+ * @mask: which hard limits to set
+ * @limits: rlimit values that override task limits
+ *
+ * AppArmor rlimits are used to set confined task rlimits.  Only the
+ * limits specified in @mask will be controlled by apparmor.
+ */
+struct aa_rlimit {
+	unsigned int mask;
+	struct rlimit limits[RLIM_NLIMITS];
+};
+
+extern struct aa_sfs_entry aa_sfs_entry_rlimit[];
+
+int aa_map_resource(int resource);
+int aa_task_setrlimit(struct aa_label *label, struct task_struct *task,
+		      unsigned int resource, struct rlimit *new_rlim);
+
+void __aa_transition_rlimits(struct aa_label *old, struct aa_label *new);
+
+static inline void aa_free_rlimit_rules(struct aa_rlimit *rlims)
+{
+	/* NOP */
+}
+
+#endif /* __AA_RESOURCE_H */
diff --git a/security/apparmor/include/secid.h b/security/apparmor/include/secid.h
new file mode 100644
index 000000000..48ff1ddec
--- /dev/null
+++ b/security/apparmor/include/secid.h
@@ -0,0 +1,36 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * AppArmor security module
+ *
+ * This file contains AppArmor security identifier (secid) definitions
+ *
+ * Copyright 2009-2018 Canonical Ltd.
+ */
+
+#ifndef __AA_SECID_H
+#define __AA_SECID_H
+
+#include <linux/slab.h>
+#include <linux/types.h>
+
+struct aa_label;
+
+/* secid value that will not be allocated */
+#define AA_SECID_INVALID 0
+
+/* secid value that matches any other secid */
+#define AA_SECID_WILDCARD 1
+
+struct aa_label *aa_secid_to_label(u32 secid);
+int apparmor_secid_to_secctx(u32 secid, char **secdata, u32 *seclen);
+int apparmor_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid);
+void apparmor_release_secctx(char *secdata, u32 seclen);
+
+
+int aa_alloc_secid(struct aa_label *label, gfp_t gfp);
+void aa_free_secid(u32 secid);
+void aa_secid_update(u32 secid, struct aa_label *label);
+
+void aa_secids_init(void);
+
+#endif /* __AA_SECID_H */
diff --git a/security/apparmor/include/sig_names.h b/security/apparmor/include/sig_names.h
new file mode 100644
index 000000000..cbf7a997e
--- /dev/null
+++ b/security/apparmor/include/sig_names.h
@@ -0,0 +1,101 @@
+#include <linux/signal.h>
+
+#define SIGUNKNOWN 0
+#define MAXMAPPED_SIG 35
+#define MAXMAPPED_SIGNAME (MAXMAPPED_SIG + 1)
+#define SIGRT_BASE 128
+
+/* provide a mapping of arch signal to internal signal # for mediation
+ * those that are always an alias SIGCLD for SIGCLHD and SIGPOLL for SIGIO
+ * map to the same entry those that may/or may not get a separate entry
+ */
+static const int sig_map[MAXMAPPED_SIG] = {
+	[0] = MAXMAPPED_SIG,	/* existence test */
+	[SIGHUP] = 1,
+	[SIGINT] = 2,
+	[SIGQUIT] = 3,
+	[SIGILL] = 4,
+	[SIGTRAP] = 5,		/* -, 5, - */
+	[SIGABRT] = 6,		/*  SIGIOT: -, 6, - */
+	[SIGBUS] = 7,		/* 10, 7, 10 */
+	[SIGFPE] = 8,
+	[SIGKILL] = 9,
+	[SIGUSR1] = 10,		/* 30, 10, 16 */
+	[SIGSEGV] = 11,
+	[SIGUSR2] = 12,		/* 31, 12, 17 */
+	[SIGPIPE] = 13,
+	[SIGALRM] = 14,
+	[SIGTERM] = 15,
+#ifdef SIGSTKFLT
+	[SIGSTKFLT] = 16,	/* -, 16, - */
+#endif
+	[SIGCHLD] = 17,		/* 20, 17, 18.  SIGCHLD -, -, 18 */
+	[SIGCONT] = 18,		/* 19, 18, 25 */
+	[SIGSTOP] = 19,		/* 17, 19, 23 */
+	[SIGTSTP] = 20,		/* 18, 20, 24 */
+	[SIGTTIN] = 21,		/* 21, 21, 26 */
+	[SIGTTOU] = 22,		/* 22, 22, 27 */
+	[SIGURG] = 23,		/* 16, 23, 21 */
+	[SIGXCPU] = 24,		/* 24, 24, 30 */
+	[SIGXFSZ] = 25,		/* 25, 25, 31 */
+	[SIGVTALRM] = 26,	/* 26, 26, 28 */
+	[SIGPROF] = 27,		/* 27, 27, 29 */
+	[SIGWINCH] = 28,	/* 28, 28, 20 */
+	[SIGIO] = 29,		/* SIGPOLL: 23, 29, 22 */
+	[SIGPWR] = 30,		/* 29, 30, 19.  SIGINFO 29, -, - */
+#ifdef SIGSYS
+	[SIGSYS] = 31,		/* 12, 31, 12. often SIG LOST/UNUSED */
+#endif
+#ifdef SIGEMT
+	[SIGEMT] = 32,		/* 7, - , 7 */
+#endif
+#if defined(SIGLOST) && SIGPWR != SIGLOST		/* sparc */
+	[SIGLOST] = 33,		/* unused on Linux */
+#endif
+#if defined(SIGUNUSED) && \
+    defined(SIGLOST) && defined(SIGSYS) && SIGLOST != SIGSYS
+	[SIGUNUSED] = 34,	/* -, 31, - */
+#endif
+};
+
+/* this table is ordered post sig_map[sig] mapping */
+static const char *const sig_names[MAXMAPPED_SIGNAME] = {
+	"unknown",
+	"hup",
+	"int",
+	"quit",
+	"ill",
+	"trap",
+	"abrt",
+	"bus",
+	"fpe",
+	"kill",
+	"usr1",
+	"segv",
+	"usr2",
+	"pipe",
+	"alrm",
+	"term",
+	"stkflt",
+	"chld",
+	"cont",
+	"stop",
+	"stp",
+	"ttin",
+	"ttou",
+	"urg",
+	"xcpu",
+	"xfsz",
+	"vtalrm",
+	"prof",
+	"winch",
+	"io",
+	"pwr",
+	"sys",
+	"emt",
+	"lost",
+	"unused",
+
+	"exists",	/* always last existence test mapped to MAXMAPPED_SIG */
+};
+
diff --git a/security/apparmor/include/task.h b/security/apparmor/include/task.h
new file mode 100644
index 000000000..f13d12373
--- /dev/null
+++ b/security/apparmor/include/task.h
@@ -0,0 +1,80 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * AppArmor security module
+ *
+ * This file contains AppArmor task related definitions and mediation
+ *
+ * Copyright 2017 Canonical Ltd.
+ */
+
+#ifndef __AA_TASK_H
+#define __AA_TASK_H
+
+static inline struct aa_task_ctx *task_ctx(struct task_struct *task)
+{
+	return task->security + apparmor_blob_sizes.lbs_task;
+}
+
+/*
+ * struct aa_task_ctx - information for current task label change
+ * @nnp: snapshot of label at time of no_new_privs
+ * @onexec: profile to transition to on next exec  (MAY BE NULL)
+ * @previous: profile the task may return to     (MAY BE NULL)
+ * @token: magic value the task must know for returning to @previous_profile
+ */
+struct aa_task_ctx {
+	struct aa_label *nnp;
+	struct aa_label *onexec;
+	struct aa_label *previous;
+	u64 token;
+};
+
+int aa_replace_current_label(struct aa_label *label);
+int aa_set_current_onexec(struct aa_label *label, bool stack);
+int aa_set_current_hat(struct aa_label *label, u64 token);
+int aa_restore_previous_label(u64 cookie);
+struct aa_label *aa_get_task_label(struct task_struct *task);
+
+/**
+ * aa_free_task_ctx - free a task_ctx
+ * @ctx: task_ctx to free (MAYBE NULL)
+ */
+static inline void aa_free_task_ctx(struct aa_task_ctx *ctx)
+{
+	if (ctx) {
+		aa_put_label(ctx->nnp);
+		aa_put_label(ctx->previous);
+		aa_put_label(ctx->onexec);
+	}
+}
+
+/**
+ * aa_dup_task_ctx - duplicate a task context, incrementing reference counts
+ * @new: a blank task context      (NOT NULL)
+ * @old: the task context to copy  (NOT NULL)
+ */
+static inline void aa_dup_task_ctx(struct aa_task_ctx *new,
+				   const struct aa_task_ctx *old)
+{
+	*new = *old;
+	aa_get_label(new->nnp);
+	aa_get_label(new->previous);
+	aa_get_label(new->onexec);
+}
+
+/**
+ * aa_clear_task_ctx_trans - clear transition tracking info from the ctx
+ * @ctx: task context to clear (NOT NULL)
+ */
+static inline void aa_clear_task_ctx_trans(struct aa_task_ctx *ctx)
+{
+	AA_BUG(!ctx);
+
+	aa_put_label(ctx->previous);
+	aa_put_label(ctx->onexec);
+	ctx->previous = NULL;
+	ctx->onexec = NULL;
+	ctx->token = 0;
+}
+
+#endif /* __AA_TASK_H */