1 // SPDX-License-Identifier: GPL-2.0-only
3 * AppArmor security module
5 * This file contains AppArmor LSM hooks.
7 * Copyright (C) 1998-2008 Novell/SUSE
8 * Copyright 2009-2010 Canonical Ltd.
11 #include <linux/lsm_hooks.h>
12 #include <linux/moduleparam.h>
14 #include <linux/mman.h>
15 #include <linux/mount.h>
16 #include <linux/namei.h>
17 #include <linux/ptrace.h>
18 #include <linux/ctype.h>
19 #include <linux/sysctl.h>
20 #include <linux/audit.h>
21 #include <linux/user_namespace.h>
22 #include <linux/netfilter_ipv4.h>
23 #include <linux/netfilter_ipv6.h>
25 #include <uapi/linux/mount.h>
27 #include "include/apparmor.h"
28 #include "include/apparmorfs.h"
29 #include "include/audit.h"
30 #include "include/capability.h"
31 #include "include/cred.h"
32 #include "include/file.h"
33 #include "include/ipc.h"
34 #include "include/net.h"
35 #include "include/path.h"
36 #include "include/label.h"
37 #include "include/policy.h"
38 #include "include/policy_ns.h"
39 #include "include/procattr.h"
40 #include "include/mount.h"
41 #include "include/secid.h"
43 /* Flag indicating whether initialization completed */
44 int apparmor_initialized;
46 DEFINE_PER_CPU(struct aa_buffers, aa_buffers);
54 * put the associated labels
56 static void apparmor_cred_free(struct cred *cred)
58 aa_put_label(cred_label(cred));
59 set_cred_label(cred, NULL);
63 * allocate the apparmor part of blank credentials
65 static int apparmor_cred_alloc_blank(struct cred *cred, gfp_t gfp)
67 set_cred_label(cred, NULL);
72 * prepare new cred label for modification by prepare_cred block
74 static int apparmor_cred_prepare(struct cred *new, const struct cred *old,
77 set_cred_label(new, aa_get_newest_label(cred_label(old)));
82 * transfer the apparmor data to a blank set of creds
84 static void apparmor_cred_transfer(struct cred *new, const struct cred *old)
86 set_cred_label(new, aa_get_newest_label(cred_label(old)));
89 static void apparmor_task_free(struct task_struct *task)
92 aa_free_task_ctx(task_ctx(task));
95 static int apparmor_task_alloc(struct task_struct *task,
96 unsigned long clone_flags)
98 struct aa_task_ctx *new = task_ctx(task);
100 aa_dup_task_ctx(new, task_ctx(current));
105 static int apparmor_ptrace_access_check(struct task_struct *child,
108 struct aa_label *tracer, *tracee;
111 tracer = __begin_current_label_crit_section();
112 tracee = aa_get_task_label(child);
113 error = aa_may_ptrace(tracer, tracee,
114 (mode & PTRACE_MODE_READ) ? AA_PTRACE_READ
116 aa_put_label(tracee);
117 __end_current_label_crit_section(tracer);
122 static int apparmor_ptrace_traceme(struct task_struct *parent)
124 struct aa_label *tracer, *tracee;
127 tracee = __begin_current_label_crit_section();
128 tracer = aa_get_task_label(parent);
129 error = aa_may_ptrace(tracer, tracee, AA_PTRACE_TRACE);
130 aa_put_label(tracer);
131 __end_current_label_crit_section(tracee);
136 /* Derived from security/commoncap.c:cap_capget */
137 static int apparmor_capget(struct task_struct *target, kernel_cap_t *effective,
138 kernel_cap_t *inheritable, kernel_cap_t *permitted)
140 struct aa_label *label;
141 const struct cred *cred;
144 cred = __task_cred(target);
145 label = aa_get_newest_cred_label(cred);
148 * cap_capget is stacked ahead of this and will
149 * initialize effective and permitted.
151 if (!unconfined(label)) {
152 struct aa_profile *profile;
155 label_for_each_confined(i, label, profile) {
156 if (COMPLAIN_MODE(profile))
158 *effective = cap_intersect(*effective,
159 profile->caps.allow);
160 *permitted = cap_intersect(*permitted,
161 profile->caps.allow);
170 static int apparmor_capable(const struct cred *cred, struct user_namespace *ns,
171 int cap, unsigned int opts)
173 struct aa_label *label;
176 label = aa_get_newest_cred_label(cred);
177 if (!unconfined(label))
178 error = aa_capable(label, cap, opts);
185 * common_perm - basic common permission check wrapper fn for paths
186 * @op: operation being checked
187 * @path: path to check permission of (NOT NULL)
188 * @mask: requested permissions mask
189 * @cond: conditional info for the permission request (NOT NULL)
191 * Returns: %0 else error code if error or permission denied
193 static int common_perm(const char *op, const struct path *path, u32 mask,
194 struct path_cond *cond)
196 struct aa_label *label;
199 label = __begin_current_label_crit_section();
200 if (!unconfined(label))
201 error = aa_path_perm(op, label, path, 0, mask, cond);
202 __end_current_label_crit_section(label);
208 * common_perm_cond - common permission wrapper around inode cond
209 * @op: operation being checked
210 * @path: location to check (NOT NULL)
211 * @mask: requested permissions mask
213 * Returns: %0 else error code if error or permission denied
215 static int common_perm_cond(const char *op, const struct path *path, u32 mask)
217 struct path_cond cond = { d_backing_inode(path->dentry)->i_uid,
218 d_backing_inode(path->dentry)->i_mode
221 if (!path_mediated_fs(path->dentry))
224 return common_perm(op, path, mask, &cond);
228 * common_perm_dir_dentry - common permission wrapper when path is dir, dentry
229 * @op: operation being checked
230 * @dir: directory of the dentry (NOT NULL)
231 * @dentry: dentry to check (NOT NULL)
232 * @mask: requested permissions mask
233 * @cond: conditional info for the permission request (NOT NULL)
235 * Returns: %0 else error code if error or permission denied
237 static int common_perm_dir_dentry(const char *op, const struct path *dir,
238 struct dentry *dentry, u32 mask,
239 struct path_cond *cond)
241 struct path path = { .mnt = dir->mnt, .dentry = dentry };
243 return common_perm(op, &path, mask, cond);
247 * common_perm_rm - common permission wrapper for operations doing rm
248 * @op: operation being checked
249 * @dir: directory that the dentry is in (NOT NULL)
250 * @dentry: dentry being rm'd (NOT NULL)
251 * @mask: requested permission mask
253 * Returns: %0 else error code if error or permission denied
255 static int common_perm_rm(const char *op, const struct path *dir,
256 struct dentry *dentry, u32 mask)
258 struct inode *inode = d_backing_inode(dentry);
259 struct path_cond cond = { };
261 if (!inode || !path_mediated_fs(dentry))
264 cond.uid = inode->i_uid;
265 cond.mode = inode->i_mode;
267 return common_perm_dir_dentry(op, dir, dentry, mask, &cond);
271 * common_perm_create - common permission wrapper for operations doing create
272 * @op: operation being checked
273 * @dir: directory that dentry will be created in (NOT NULL)
274 * @dentry: dentry to create (NOT NULL)
275 * @mask: request permission mask
276 * @mode: created file mode
278 * Returns: %0 else error code if error or permission denied
280 static int common_perm_create(const char *op, const struct path *dir,
281 struct dentry *dentry, u32 mask, umode_t mode)
283 struct path_cond cond = { current_fsuid(), mode };
285 if (!path_mediated_fs(dir->dentry))
288 return common_perm_dir_dentry(op, dir, dentry, mask, &cond);
291 static int apparmor_path_unlink(const struct path *dir, struct dentry *dentry)
293 return common_perm_rm(OP_UNLINK, dir, dentry, AA_MAY_DELETE);
296 static int apparmor_path_mkdir(const struct path *dir, struct dentry *dentry,
299 return common_perm_create(OP_MKDIR, dir, dentry, AA_MAY_CREATE,
303 static int apparmor_path_rmdir(const struct path *dir, struct dentry *dentry)
305 return common_perm_rm(OP_RMDIR, dir, dentry, AA_MAY_DELETE);
308 static int apparmor_path_mknod(const struct path *dir, struct dentry *dentry,
309 umode_t mode, unsigned int dev)
311 return common_perm_create(OP_MKNOD, dir, dentry, AA_MAY_CREATE, mode);
314 static int apparmor_path_truncate(const struct path *path)
316 return common_perm_cond(OP_TRUNC, path, MAY_WRITE | AA_MAY_SETATTR);
319 static int apparmor_path_symlink(const struct path *dir, struct dentry *dentry,
320 const char *old_name)
322 return common_perm_create(OP_SYMLINK, dir, dentry, AA_MAY_CREATE,
326 static int apparmor_path_link(struct dentry *old_dentry, const struct path *new_dir,
327 struct dentry *new_dentry)
329 struct aa_label *label;
332 if (!path_mediated_fs(old_dentry))
335 label = begin_current_label_crit_section();
336 if (!unconfined(label))
337 error = aa_path_link(label, old_dentry, new_dir, new_dentry);
338 end_current_label_crit_section(label);
343 static int apparmor_path_rename(const struct path *old_dir, struct dentry *old_dentry,
344 const struct path *new_dir, struct dentry *new_dentry)
346 struct aa_label *label;
349 if (!path_mediated_fs(old_dentry))
352 label = begin_current_label_crit_section();
353 if (!unconfined(label)) {
354 struct path old_path = { .mnt = old_dir->mnt,
355 .dentry = old_dentry };
356 struct path new_path = { .mnt = new_dir->mnt,
357 .dentry = new_dentry };
358 struct path_cond cond = { d_backing_inode(old_dentry)->i_uid,
359 d_backing_inode(old_dentry)->i_mode
362 error = aa_path_perm(OP_RENAME_SRC, label, &old_path, 0,
363 MAY_READ | AA_MAY_GETATTR | MAY_WRITE |
364 AA_MAY_SETATTR | AA_MAY_DELETE,
367 error = aa_path_perm(OP_RENAME_DEST, label, &new_path,
368 0, MAY_WRITE | AA_MAY_SETATTR |
369 AA_MAY_CREATE, &cond);
372 end_current_label_crit_section(label);
377 static int apparmor_path_chmod(const struct path *path, umode_t mode)
379 return common_perm_cond(OP_CHMOD, path, AA_MAY_CHMOD);
382 static int apparmor_path_chown(const struct path *path, kuid_t uid, kgid_t gid)
384 return common_perm_cond(OP_CHOWN, path, AA_MAY_CHOWN);
387 static int apparmor_inode_getattr(const struct path *path)
389 return common_perm_cond(OP_GETATTR, path, AA_MAY_GETATTR);
392 static int apparmor_file_open(struct file *file)
394 struct aa_file_ctx *fctx = file_ctx(file);
395 struct aa_label *label;
398 if (!path_mediated_fs(file->f_path.dentry))
401 /* If in exec, permission is handled by bprm hooks.
402 * Cache permissions granted by the previous exec check, with
403 * implicit read and executable mmap which are required to
404 * actually execute the image.
406 if (current->in_execve) {
407 fctx->allow = MAY_EXEC | MAY_READ | AA_EXEC_MMAP;
411 label = aa_get_newest_cred_label(file->f_cred);
412 if (!unconfined(label)) {
413 struct inode *inode = file_inode(file);
414 struct path_cond cond = { inode->i_uid, inode->i_mode };
416 error = aa_path_perm(OP_OPEN, label, &file->f_path, 0,
417 aa_map_file_to_perms(file), &cond);
418 /* todo cache full allowed permissions set and state */
419 fctx->allow = aa_map_file_to_perms(file);
426 static int apparmor_file_alloc_security(struct file *file)
428 struct aa_file_ctx *ctx = file_ctx(file);
429 struct aa_label *label = begin_current_label_crit_section();
431 spin_lock_init(&ctx->lock);
432 rcu_assign_pointer(ctx->label, aa_get_label(label));
433 end_current_label_crit_section(label);
437 static void apparmor_file_free_security(struct file *file)
439 struct aa_file_ctx *ctx = file_ctx(file);
442 aa_put_label(rcu_access_pointer(ctx->label));
445 static int common_file_perm(const char *op, struct file *file, u32 mask)
447 struct aa_label *label;
450 /* don't reaudit files closed during inheritance */
451 if (file->f_path.dentry == aa_null.dentry)
454 label = __begin_current_label_crit_section();
455 error = aa_file_perm(op, label, file, mask);
456 __end_current_label_crit_section(label);
461 static int apparmor_file_receive(struct file *file)
463 return common_file_perm(OP_FRECEIVE, file, aa_map_file_to_perms(file));
466 static int apparmor_file_permission(struct file *file, int mask)
468 return common_file_perm(OP_FPERM, file, mask);
471 static int apparmor_file_lock(struct file *file, unsigned int cmd)
473 u32 mask = AA_MAY_LOCK;
478 return common_file_perm(OP_FLOCK, file, mask);
481 static int common_mmap(const char *op, struct file *file, unsigned long prot,
486 if (!file || !file_ctx(file))
489 if (prot & PROT_READ)
492 * Private mappings don't require write perms since they don't
493 * write back to the files
495 if ((prot & PROT_WRITE) && !(flags & MAP_PRIVATE))
497 if (prot & PROT_EXEC)
498 mask |= AA_EXEC_MMAP;
500 return common_file_perm(op, file, mask);
503 static int apparmor_mmap_file(struct file *file, unsigned long reqprot,
504 unsigned long prot, unsigned long flags)
506 return common_mmap(OP_FMMAP, file, prot, flags);
509 static int apparmor_file_mprotect(struct vm_area_struct *vma,
510 unsigned long reqprot, unsigned long prot)
512 return common_mmap(OP_FMPROT, vma->vm_file, prot,
513 !(vma->vm_flags & VM_SHARED) ? MAP_PRIVATE : 0);
516 static int apparmor_sb_mount(const char *dev_name, const struct path *path,
517 const char *type, unsigned long flags, void *data)
519 struct aa_label *label;
523 if ((flags & MS_MGC_MSK) == MS_MGC_VAL)
524 flags &= ~MS_MGC_MSK;
526 flags &= ~AA_MS_IGNORE_MASK;
528 label = __begin_current_label_crit_section();
529 if (!unconfined(label)) {
530 if (flags & MS_REMOUNT)
531 error = aa_remount(label, path, flags, data);
532 else if (flags & MS_BIND)
533 error = aa_bind_mount(label, path, dev_name, flags);
534 else if (flags & (MS_SHARED | MS_PRIVATE | MS_SLAVE |
536 error = aa_mount_change_type(label, path, flags);
537 else if (flags & MS_MOVE)
538 error = aa_move_mount(label, path, dev_name);
540 error = aa_new_mount(label, dev_name, path, type,
543 __end_current_label_crit_section(label);
548 static int apparmor_sb_umount(struct vfsmount *mnt, int flags)
550 struct aa_label *label;
553 label = __begin_current_label_crit_section();
554 if (!unconfined(label))
555 error = aa_umount(label, mnt, flags);
556 __end_current_label_crit_section(label);
561 static int apparmor_sb_pivotroot(const struct path *old_path,
562 const struct path *new_path)
564 struct aa_label *label;
567 label = aa_get_current_label();
568 if (!unconfined(label))
569 error = aa_pivotroot(label, old_path, new_path);
575 static int apparmor_getprocattr(struct task_struct *task, char *name,
580 const struct cred *cred = get_task_cred(task);
581 struct aa_task_ctx *ctx = task_ctx(current);
582 struct aa_label *label = NULL;
584 if (strcmp(name, "current") == 0)
585 label = aa_get_newest_label(cred_label(cred));
586 else if (strcmp(name, "prev") == 0 && ctx->previous)
587 label = aa_get_newest_label(ctx->previous);
588 else if (strcmp(name, "exec") == 0 && ctx->onexec)
589 label = aa_get_newest_label(ctx->onexec);
594 error = aa_getprocattr(label, value);
602 static int apparmor_setprocattr(const char *name, void *value,
605 char *command, *largs = NULL, *args = value;
608 DEFINE_AUDIT_DATA(sa, LSM_AUDIT_DATA_NONE, OP_SETPROCATTR);
613 /* AppArmor requires that the buffer must be null terminated atm */
614 if (args[size - 1] != '\0') {
616 largs = args = kmalloc(size + 1, GFP_KERNEL);
619 memcpy(args, value, size);
625 command = strsep(&args, " ");
628 args = skip_spaces(args);
632 arg_size = size - (args - (largs ? largs : (char *) value));
633 if (strcmp(name, "current") == 0) {
634 if (strcmp(command, "changehat") == 0) {
635 error = aa_setprocattr_changehat(args, arg_size,
637 } else if (strcmp(command, "permhat") == 0) {
638 error = aa_setprocattr_changehat(args, arg_size,
640 } else if (strcmp(command, "changeprofile") == 0) {
641 error = aa_change_profile(args, AA_CHANGE_NOFLAGS);
642 } else if (strcmp(command, "permprofile") == 0) {
643 error = aa_change_profile(args, AA_CHANGE_TEST);
644 } else if (strcmp(command, "stack") == 0) {
645 error = aa_change_profile(args, AA_CHANGE_STACK);
648 } else if (strcmp(name, "exec") == 0) {
649 if (strcmp(command, "exec") == 0)
650 error = aa_change_profile(args, AA_CHANGE_ONEXEC);
651 else if (strcmp(command, "stack") == 0)
652 error = aa_change_profile(args, (AA_CHANGE_ONEXEC |
657 /* only support the "current" and "exec" process attributes */
667 aad(&sa)->label = begin_current_label_crit_section();
668 aad(&sa)->info = name;
669 aad(&sa)->error = error = -EINVAL;
670 aa_audit_msg(AUDIT_APPARMOR_DENIED, &sa, NULL);
671 end_current_label_crit_section(aad(&sa)->label);
676 * apparmor_bprm_committing_creds - do task cleanup on committing new creds
677 * @bprm: binprm for the exec (NOT NULL)
679 static void apparmor_bprm_committing_creds(struct linux_binprm *bprm)
681 struct aa_label *label = aa_current_raw_label();
682 struct aa_label *new_label = cred_label(bprm->cred);
684 /* bail out if unconfined or not changing profile */
685 if ((new_label->proxy == label->proxy) ||
686 (unconfined(new_label)))
689 aa_inherit_files(bprm->cred, current->files);
691 current->pdeath_signal = 0;
693 /* reset soft limits and set hard limits for the new label */
694 __aa_transition_rlimits(label, new_label);
698 * apparmor_bprm_committed_cred - do cleanup after new creds committed
699 * @bprm: binprm for the exec (NOT NULL)
701 static void apparmor_bprm_committed_creds(struct linux_binprm *bprm)
703 /* clear out temporary/transitional state from the context */
704 aa_clear_task_ctx_trans(task_ctx(current));
709 static void apparmor_task_getsecid(struct task_struct *p, u32 *secid)
711 struct aa_label *label = aa_get_task_label(p);
712 *secid = label->secid;
716 static int apparmor_task_setrlimit(struct task_struct *task,
717 unsigned int resource, struct rlimit *new_rlim)
719 struct aa_label *label = __begin_current_label_crit_section();
722 if (!unconfined(label))
723 error = aa_task_setrlimit(label, task, resource, new_rlim);
724 __end_current_label_crit_section(label);
729 static int apparmor_task_kill(struct task_struct *target, struct kernel_siginfo *info,
730 int sig, const struct cred *cred)
732 struct aa_label *cl, *tl;
737 * Dealing with USB IO specific behavior
739 cl = aa_get_newest_cred_label(cred);
740 tl = aa_get_task_label(target);
741 error = aa_may_signal(cl, tl, sig);
747 cl = __begin_current_label_crit_section();
748 tl = aa_get_task_label(target);
749 error = aa_may_signal(cl, tl, sig);
751 __end_current_label_crit_section(cl);
757 * apparmor_sk_alloc_security - allocate and attach the sk_security field
759 static int apparmor_sk_alloc_security(struct sock *sk, int family, gfp_t flags)
761 struct aa_sk_ctx *ctx;
763 ctx = kzalloc(sizeof(*ctx), flags);
773 * apparmor_sk_free_security - free the sk_security field
775 static void apparmor_sk_free_security(struct sock *sk)
777 struct aa_sk_ctx *ctx = SK_CTX(sk);
780 aa_put_label(ctx->label);
781 aa_put_label(ctx->peer);
786 * apparmor_clone_security - clone the sk_security field
788 static void apparmor_sk_clone_security(const struct sock *sk,
791 struct aa_sk_ctx *ctx = SK_CTX(sk);
792 struct aa_sk_ctx *new = SK_CTX(newsk);
795 aa_put_label(new->label);
796 new->label = aa_get_label(ctx->label);
799 aa_put_label(new->peer);
800 new->peer = aa_get_label(ctx->peer);
804 * apparmor_socket_create - check perms before creating a new socket
806 static int apparmor_socket_create(int family, int type, int protocol, int kern)
808 struct aa_label *label;
811 AA_BUG(in_interrupt());
813 label = begin_current_label_crit_section();
814 if (!(kern || unconfined(label)))
815 error = af_select(family,
816 create_perm(label, family, type, protocol),
817 aa_af_perm(label, OP_CREATE, AA_MAY_CREATE,
818 family, type, protocol));
819 end_current_label_crit_section(label);
825 * apparmor_socket_post_create - setup the per-socket security struct
828 * - kernel sockets currently labeled unconfined but we may want to
829 * move to a special kernel label
830 * - socket may not have sk here if created with sock_create_lite or
831 * sock_alloc. These should be accept cases which will be handled in
834 static int apparmor_socket_post_create(struct socket *sock, int family,
835 int type, int protocol, int kern)
837 struct aa_label *label;
840 struct aa_ns *ns = aa_get_current_ns();
842 label = aa_get_label(ns_unconfined(ns));
845 label = aa_get_current_label();
848 struct aa_sk_ctx *ctx = SK_CTX(sock->sk);
850 aa_put_label(ctx->label);
851 ctx->label = aa_get_label(label);
859 * apparmor_socket_bind - check perms before bind addr to socket
861 static int apparmor_socket_bind(struct socket *sock,
862 struct sockaddr *address, int addrlen)
867 AA_BUG(in_interrupt());
869 return af_select(sock->sk->sk_family,
870 bind_perm(sock, address, addrlen),
871 aa_sk_perm(OP_BIND, AA_MAY_BIND, sock->sk));
875 * apparmor_socket_connect - check perms before connecting @sock to @address
877 static int apparmor_socket_connect(struct socket *sock,
878 struct sockaddr *address, int addrlen)
883 AA_BUG(in_interrupt());
885 return af_select(sock->sk->sk_family,
886 connect_perm(sock, address, addrlen),
887 aa_sk_perm(OP_CONNECT, AA_MAY_CONNECT, sock->sk));
891 * apparmor_socket_list - check perms before allowing listen
893 static int apparmor_socket_listen(struct socket *sock, int backlog)
897 AA_BUG(in_interrupt());
899 return af_select(sock->sk->sk_family,
900 listen_perm(sock, backlog),
901 aa_sk_perm(OP_LISTEN, AA_MAY_LISTEN, sock->sk));
905 * apparmor_socket_accept - check perms before accepting a new connection.
907 * Note: while @newsock is created and has some information, the accept
910 static int apparmor_socket_accept(struct socket *sock, struct socket *newsock)
915 AA_BUG(in_interrupt());
917 return af_select(sock->sk->sk_family,
918 accept_perm(sock, newsock),
919 aa_sk_perm(OP_ACCEPT, AA_MAY_ACCEPT, sock->sk));
922 static int aa_sock_msg_perm(const char *op, u32 request, struct socket *sock,
923 struct msghdr *msg, int size)
928 AA_BUG(in_interrupt());
930 return af_select(sock->sk->sk_family,
931 msg_perm(op, request, sock, msg, size),
932 aa_sk_perm(op, request, sock->sk));
936 * apparmor_socket_sendmsg - check perms before sending msg to another socket
938 static int apparmor_socket_sendmsg(struct socket *sock,
939 struct msghdr *msg, int size)
941 return aa_sock_msg_perm(OP_SENDMSG, AA_MAY_SEND, sock, msg, size);
945 * apparmor_socket_recvmsg - check perms before receiving a message
947 static int apparmor_socket_recvmsg(struct socket *sock,
948 struct msghdr *msg, int size, int flags)
950 return aa_sock_msg_perm(OP_RECVMSG, AA_MAY_RECEIVE, sock, msg, size);
953 /* revaliation, get/set attr, shutdown */
954 static int aa_sock_perm(const char *op, u32 request, struct socket *sock)
958 AA_BUG(in_interrupt());
960 return af_select(sock->sk->sk_family,
961 sock_perm(op, request, sock),
962 aa_sk_perm(op, request, sock->sk));
966 * apparmor_socket_getsockname - check perms before getting the local address
968 static int apparmor_socket_getsockname(struct socket *sock)
970 return aa_sock_perm(OP_GETSOCKNAME, AA_MAY_GETATTR, sock);
974 * apparmor_socket_getpeername - check perms before getting remote address
976 static int apparmor_socket_getpeername(struct socket *sock)
978 return aa_sock_perm(OP_GETPEERNAME, AA_MAY_GETATTR, sock);
981 /* revaliation, get/set attr, opt */
982 static int aa_sock_opt_perm(const char *op, u32 request, struct socket *sock,
983 int level, int optname)
987 AA_BUG(in_interrupt());
989 return af_select(sock->sk->sk_family,
990 opt_perm(op, request, sock, level, optname),
991 aa_sk_perm(op, request, sock->sk));
995 * apparmor_getsockopt - check perms before getting socket options
997 static int apparmor_socket_getsockopt(struct socket *sock, int level,
1000 return aa_sock_opt_perm(OP_GETSOCKOPT, AA_MAY_GETOPT, sock,
1005 * apparmor_setsockopt - check perms before setting socket options
1007 static int apparmor_socket_setsockopt(struct socket *sock, int level,
1010 return aa_sock_opt_perm(OP_SETSOCKOPT, AA_MAY_SETOPT, sock,
1015 * apparmor_socket_shutdown - check perms before shutting down @sock conn
1017 static int apparmor_socket_shutdown(struct socket *sock, int how)
1019 return aa_sock_perm(OP_SHUTDOWN, AA_MAY_SHUTDOWN, sock);
1022 #ifdef CONFIG_NETWORK_SECMARK
1024 * apparmor_socket_sock_recv_skb - check perms before associating skb to sk
1026 * Note: can not sleep may be called with locks held
1028 * dont want protocol specific in __skb_recv_datagram()
1029 * to deny an incoming connection socket_sock_rcv_skb()
1031 static int apparmor_socket_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
1033 struct aa_sk_ctx *ctx = SK_CTX(sk);
1038 return apparmor_secmark_check(ctx->label, OP_RECVMSG, AA_MAY_RECEIVE,
1044 static struct aa_label *sk_peer_label(struct sock *sk)
1046 struct aa_sk_ctx *ctx = SK_CTX(sk);
1051 return ERR_PTR(-ENOPROTOOPT);
1055 * apparmor_socket_getpeersec_stream - get security context of peer
1057 * Note: for tcp only valid if using ipsec or cipso on lan
1059 static int apparmor_socket_getpeersec_stream(struct socket *sock,
1060 char __user *optval,
1065 int slen, error = 0;
1066 struct aa_label *label;
1067 struct aa_label *peer;
1069 label = begin_current_label_crit_section();
1070 peer = sk_peer_label(sock->sk);
1072 error = PTR_ERR(peer);
1075 slen = aa_label_asxprint(&name, labels_ns(label), peer,
1076 FLAG_SHOW_MODE | FLAG_VIEW_SUBNS |
1077 FLAG_HIDDEN_UNCONFINED, GFP_KERNEL);
1078 /* don't include terminating \0 in slen, it breaks some apps */
1084 } else if (copy_to_user(optval, name, slen)) {
1088 if (put_user(slen, optlen))
1096 end_current_label_crit_section(label);
1102 * apparmor_socket_getpeersec_dgram - get security label of packet
1103 * @sock: the peer socket
1105 * @secid: pointer to where to put the secid of the packet
1107 * Sets the netlabel socket state on sk from parent
1109 static int apparmor_socket_getpeersec_dgram(struct socket *sock,
1110 struct sk_buff *skb, u32 *secid)
1113 /* TODO: requires secid support */
1114 return -ENOPROTOOPT;
1118 * apparmor_sock_graft - Initialize newly created socket
1120 * @parent: parent socket
1122 * Note: could set off of SOCK_CTX(parent) but need to track inode and we can
1123 * just set sk security information off of current creating process label
1124 * Labeling of sk for accept case - probably should be sock based
1125 * instead of task, because of the case where an implicitly labeled
1126 * socket is shared by different tasks.
1128 static void apparmor_sock_graft(struct sock *sk, struct socket *parent)
1130 struct aa_sk_ctx *ctx = SK_CTX(sk);
1133 ctx->label = aa_get_current_label();
1136 #ifdef CONFIG_NETWORK_SECMARK
1137 static int apparmor_inet_conn_request(struct sock *sk, struct sk_buff *skb,
1138 struct request_sock *req)
1140 struct aa_sk_ctx *ctx = SK_CTX(sk);
1145 return apparmor_secmark_check(ctx->label, OP_CONNECT, AA_MAY_CONNECT,
1151 * The cred blob is a pointer to, not an instance of, an aa_label.
1153 struct lsm_blob_sizes apparmor_blob_sizes __lsm_ro_after_init = {
1154 .lbs_cred = sizeof(struct aa_label *),
1155 .lbs_file = sizeof(struct aa_file_ctx),
1156 .lbs_task = sizeof(struct aa_task_ctx),
1159 static struct security_hook_list apparmor_hooks[] __lsm_ro_after_init = {
1160 LSM_HOOK_INIT(ptrace_access_check, apparmor_ptrace_access_check),
1161 LSM_HOOK_INIT(ptrace_traceme, apparmor_ptrace_traceme),
1162 LSM_HOOK_INIT(capget, apparmor_capget),
1163 LSM_HOOK_INIT(capable, apparmor_capable),
1165 LSM_HOOK_INIT(sb_mount, apparmor_sb_mount),
1166 LSM_HOOK_INIT(sb_umount, apparmor_sb_umount),
1167 LSM_HOOK_INIT(sb_pivotroot, apparmor_sb_pivotroot),
1169 LSM_HOOK_INIT(path_link, apparmor_path_link),
1170 LSM_HOOK_INIT(path_unlink, apparmor_path_unlink),
1171 LSM_HOOK_INIT(path_symlink, apparmor_path_symlink),
1172 LSM_HOOK_INIT(path_mkdir, apparmor_path_mkdir),
1173 LSM_HOOK_INIT(path_rmdir, apparmor_path_rmdir),
1174 LSM_HOOK_INIT(path_mknod, apparmor_path_mknod),
1175 LSM_HOOK_INIT(path_rename, apparmor_path_rename),
1176 LSM_HOOK_INIT(path_chmod, apparmor_path_chmod),
1177 LSM_HOOK_INIT(path_chown, apparmor_path_chown),
1178 LSM_HOOK_INIT(path_truncate, apparmor_path_truncate),
1179 LSM_HOOK_INIT(inode_getattr, apparmor_inode_getattr),
1181 LSM_HOOK_INIT(file_open, apparmor_file_open),
1182 LSM_HOOK_INIT(file_receive, apparmor_file_receive),
1183 LSM_HOOK_INIT(file_permission, apparmor_file_permission),
1184 LSM_HOOK_INIT(file_alloc_security, apparmor_file_alloc_security),
1185 LSM_HOOK_INIT(file_free_security, apparmor_file_free_security),
1186 LSM_HOOK_INIT(mmap_file, apparmor_mmap_file),
1187 LSM_HOOK_INIT(file_mprotect, apparmor_file_mprotect),
1188 LSM_HOOK_INIT(file_lock, apparmor_file_lock),
1190 LSM_HOOK_INIT(getprocattr, apparmor_getprocattr),
1191 LSM_HOOK_INIT(setprocattr, apparmor_setprocattr),
1193 LSM_HOOK_INIT(sk_alloc_security, apparmor_sk_alloc_security),
1194 LSM_HOOK_INIT(sk_free_security, apparmor_sk_free_security),
1195 LSM_HOOK_INIT(sk_clone_security, apparmor_sk_clone_security),
1197 LSM_HOOK_INIT(socket_create, apparmor_socket_create),
1198 LSM_HOOK_INIT(socket_post_create, apparmor_socket_post_create),
1199 LSM_HOOK_INIT(socket_bind, apparmor_socket_bind),
1200 LSM_HOOK_INIT(socket_connect, apparmor_socket_connect),
1201 LSM_HOOK_INIT(socket_listen, apparmor_socket_listen),
1202 LSM_HOOK_INIT(socket_accept, apparmor_socket_accept),
1203 LSM_HOOK_INIT(socket_sendmsg, apparmor_socket_sendmsg),
1204 LSM_HOOK_INIT(socket_recvmsg, apparmor_socket_recvmsg),
1205 LSM_HOOK_INIT(socket_getsockname, apparmor_socket_getsockname),
1206 LSM_HOOK_INIT(socket_getpeername, apparmor_socket_getpeername),
1207 LSM_HOOK_INIT(socket_getsockopt, apparmor_socket_getsockopt),
1208 LSM_HOOK_INIT(socket_setsockopt, apparmor_socket_setsockopt),
1209 LSM_HOOK_INIT(socket_shutdown, apparmor_socket_shutdown),
1210 #ifdef CONFIG_NETWORK_SECMARK
1211 LSM_HOOK_INIT(socket_sock_rcv_skb, apparmor_socket_sock_rcv_skb),
1213 LSM_HOOK_INIT(socket_getpeersec_stream,
1214 apparmor_socket_getpeersec_stream),
1215 LSM_HOOK_INIT(socket_getpeersec_dgram,
1216 apparmor_socket_getpeersec_dgram),
1217 LSM_HOOK_INIT(sock_graft, apparmor_sock_graft),
1218 #ifdef CONFIG_NETWORK_SECMARK
1219 LSM_HOOK_INIT(inet_conn_request, apparmor_inet_conn_request),
1222 LSM_HOOK_INIT(cred_alloc_blank, apparmor_cred_alloc_blank),
1223 LSM_HOOK_INIT(cred_free, apparmor_cred_free),
1224 LSM_HOOK_INIT(cred_prepare, apparmor_cred_prepare),
1225 LSM_HOOK_INIT(cred_transfer, apparmor_cred_transfer),
1227 LSM_HOOK_INIT(bprm_set_creds, apparmor_bprm_set_creds),
1228 LSM_HOOK_INIT(bprm_committing_creds, apparmor_bprm_committing_creds),
1229 LSM_HOOK_INIT(bprm_committed_creds, apparmor_bprm_committed_creds),
1231 LSM_HOOK_INIT(task_free, apparmor_task_free),
1232 LSM_HOOK_INIT(task_alloc, apparmor_task_alloc),
1233 LSM_HOOK_INIT(task_getsecid, apparmor_task_getsecid),
1234 LSM_HOOK_INIT(task_setrlimit, apparmor_task_setrlimit),
1235 LSM_HOOK_INIT(task_kill, apparmor_task_kill),
1238 LSM_HOOK_INIT(audit_rule_init, aa_audit_rule_init),
1239 LSM_HOOK_INIT(audit_rule_known, aa_audit_rule_known),
1240 LSM_HOOK_INIT(audit_rule_match, aa_audit_rule_match),
1241 LSM_HOOK_INIT(audit_rule_free, aa_audit_rule_free),
1244 LSM_HOOK_INIT(secid_to_secctx, apparmor_secid_to_secctx),
1245 LSM_HOOK_INIT(secctx_to_secid, apparmor_secctx_to_secid),
1246 LSM_HOOK_INIT(release_secctx, apparmor_release_secctx),
1250 * AppArmor sysfs module parameters
1253 static int param_set_aabool(const char *val, const struct kernel_param *kp);
1254 static int param_get_aabool(char *buffer, const struct kernel_param *kp);
1255 #define param_check_aabool param_check_bool
1256 static const struct kernel_param_ops param_ops_aabool = {
1257 .flags = KERNEL_PARAM_OPS_FL_NOARG,
1258 .set = param_set_aabool,
1259 .get = param_get_aabool
1262 static int param_set_aauint(const char *val, const struct kernel_param *kp);
1263 static int param_get_aauint(char *buffer, const struct kernel_param *kp);
1264 #define param_check_aauint param_check_uint
1265 static const struct kernel_param_ops param_ops_aauint = {
1266 .set = param_set_aauint,
1267 .get = param_get_aauint
1270 static int param_set_aalockpolicy(const char *val, const struct kernel_param *kp);
1271 static int param_get_aalockpolicy(char *buffer, const struct kernel_param *kp);
1272 #define param_check_aalockpolicy param_check_bool
1273 static const struct kernel_param_ops param_ops_aalockpolicy = {
1274 .flags = KERNEL_PARAM_OPS_FL_NOARG,
1275 .set = param_set_aalockpolicy,
1276 .get = param_get_aalockpolicy
1279 static int param_set_audit(const char *val, const struct kernel_param *kp);
1280 static int param_get_audit(char *buffer, const struct kernel_param *kp);
1282 static int param_set_mode(const char *val, const struct kernel_param *kp);
1283 static int param_get_mode(char *buffer, const struct kernel_param *kp);
1285 /* Flag values, also controllable via /sys/module/apparmor/parameters
1286 * We define special types as we want to do additional mediation.
1289 /* AppArmor global enforcement switch - complain, enforce, kill */
1290 enum profile_mode aa_g_profile_mode = APPARMOR_ENFORCE;
1291 module_param_call(mode, param_set_mode, param_get_mode,
1292 &aa_g_profile_mode, S_IRUSR | S_IWUSR);
1294 /* whether policy verification hashing is enabled */
1295 bool aa_g_hash_policy = IS_ENABLED(CONFIG_SECURITY_APPARMOR_HASH_DEFAULT);
1296 #ifdef CONFIG_SECURITY_APPARMOR_HASH
1297 module_param_named(hash_policy, aa_g_hash_policy, aabool, S_IRUSR | S_IWUSR);
1301 bool aa_g_debug = IS_ENABLED(CONFIG_SECURITY_APPARMOR_DEBUG_MESSAGES);
1302 module_param_named(debug, aa_g_debug, aabool, S_IRUSR | S_IWUSR);
1305 enum audit_mode aa_g_audit;
1306 module_param_call(audit, param_set_audit, param_get_audit,
1307 &aa_g_audit, S_IRUSR | S_IWUSR);
1309 /* Determines if audit header is included in audited messages. This
1310 * provides more context if the audit daemon is not running
1312 bool aa_g_audit_header = true;
1313 module_param_named(audit_header, aa_g_audit_header, aabool,
1316 /* lock out loading/removal of policy
1317 * TODO: add in at boot loading of policy, which is the only way to
1318 * load policy, if lock_policy is set
1320 bool aa_g_lock_policy;
1321 module_param_named(lock_policy, aa_g_lock_policy, aalockpolicy,
1324 /* Syscall logging mode */
1325 bool aa_g_logsyscall;
1326 module_param_named(logsyscall, aa_g_logsyscall, aabool, S_IRUSR | S_IWUSR);
1328 /* Maximum pathname length before accesses will start getting rejected */
1329 unsigned int aa_g_path_max = 2 * PATH_MAX;
1330 module_param_named(path_max, aa_g_path_max, aauint, S_IRUSR);
1332 /* Determines how paranoid loading of policy is and how much verification
1333 * on the loaded policy is done.
1334 * DEPRECATED: read only as strict checking of load is always done now
1335 * that none root users (user namespaces) can load policy.
1337 bool aa_g_paranoid_load = true;
1338 module_param_named(paranoid_load, aa_g_paranoid_load, aabool, S_IRUGO);
1340 static int param_get_aaintbool(char *buffer, const struct kernel_param *kp);
1341 static int param_set_aaintbool(const char *val, const struct kernel_param *kp);
1342 #define param_check_aaintbool param_check_int
1343 static const struct kernel_param_ops param_ops_aaintbool = {
1344 .set = param_set_aaintbool,
1345 .get = param_get_aaintbool
1347 /* Boot time disable flag */
1348 static int apparmor_enabled __lsm_ro_after_init = 1;
1349 module_param_named(enabled, apparmor_enabled, aaintbool, 0444);
1351 static int __init apparmor_enabled_setup(char *str)
1353 unsigned long enabled;
1354 int error = kstrtoul(str, 0, &enabled);
1356 apparmor_enabled = enabled ? 1 : 0;
1360 __setup("apparmor=", apparmor_enabled_setup);
1362 /* set global flag turning off the ability to load policy */
1363 static int param_set_aalockpolicy(const char *val, const struct kernel_param *kp)
1365 if (!apparmor_enabled)
1367 if (apparmor_initialized && !policy_admin_capable(NULL))
1369 return param_set_bool(val, kp);
1372 static int param_get_aalockpolicy(char *buffer, const struct kernel_param *kp)
1374 if (!apparmor_enabled)
1376 if (apparmor_initialized && !policy_view_capable(NULL))
1378 return param_get_bool(buffer, kp);
1381 static int param_set_aabool(const char *val, const struct kernel_param *kp)
1383 if (!apparmor_enabled)
1385 if (apparmor_initialized && !policy_admin_capable(NULL))
1387 return param_set_bool(val, kp);
1390 static int param_get_aabool(char *buffer, const struct kernel_param *kp)
1392 if (!apparmor_enabled)
1394 if (apparmor_initialized && !policy_view_capable(NULL))
1396 return param_get_bool(buffer, kp);
1399 static int param_set_aauint(const char *val, const struct kernel_param *kp)
1403 if (!apparmor_enabled)
1405 /* file is ro but enforce 2nd line check */
1406 if (apparmor_initialized)
1409 error = param_set_uint(val, kp);
1410 pr_info("AppArmor: buffer size set to %d bytes\n", aa_g_path_max);
1415 static int param_get_aauint(char *buffer, const struct kernel_param *kp)
1417 if (!apparmor_enabled)
1419 if (apparmor_initialized && !policy_view_capable(NULL))
1421 return param_get_uint(buffer, kp);
1424 /* Can only be set before AppArmor is initialized (i.e. on boot cmdline). */
1425 static int param_set_aaintbool(const char *val, const struct kernel_param *kp)
1427 struct kernel_param kp_local;
1431 if (apparmor_initialized)
1434 /* Create local copy, with arg pointing to bool type. */
1435 value = !!*((int *)kp->arg);
1436 memcpy(&kp_local, kp, sizeof(kp_local));
1437 kp_local.arg = &value;
1439 error = param_set_bool(val, &kp_local);
1441 *((int *)kp->arg) = *((bool *)kp_local.arg);
1446 * To avoid changing /sys/module/apparmor/parameters/enabled from Y/N to
1447 * 1/0, this converts the "int that is actually bool" back to bool for
1448 * display in the /sys filesystem, while keeping it "int" for the LSM
1451 static int param_get_aaintbool(char *buffer, const struct kernel_param *kp)
1453 struct kernel_param kp_local;
1456 /* Create local copy, with arg pointing to bool type. */
1457 value = !!*((int *)kp->arg);
1458 memcpy(&kp_local, kp, sizeof(kp_local));
1459 kp_local.arg = &value;
1461 return param_get_bool(buffer, &kp_local);
1464 static int param_get_audit(char *buffer, const struct kernel_param *kp)
1466 if (!apparmor_enabled)
1468 if (apparmor_initialized && !policy_view_capable(NULL))
1470 return sprintf(buffer, "%s", audit_mode_names[aa_g_audit]);
1473 static int param_set_audit(const char *val, const struct kernel_param *kp)
1477 if (!apparmor_enabled)
1481 if (apparmor_initialized && !policy_admin_capable(NULL))
1484 i = match_string(audit_mode_names, AUDIT_MAX_INDEX, val);
1492 static int param_get_mode(char *buffer, const struct kernel_param *kp)
1494 if (!apparmor_enabled)
1496 if (apparmor_initialized && !policy_view_capable(NULL))
1499 return sprintf(buffer, "%s", aa_profile_mode_names[aa_g_profile_mode]);
1502 static int param_set_mode(const char *val, const struct kernel_param *kp)
1506 if (!apparmor_enabled)
1510 if (apparmor_initialized && !policy_admin_capable(NULL))
1513 i = match_string(aa_profile_mode_names, APPARMOR_MODE_NAMES_MAX_INDEX,
1518 aa_g_profile_mode = i;
1523 * AppArmor init functions
1527 * set_init_ctx - set a task context and profile on the first task.
1529 * TODO: allow setting an alternate profile than unconfined
1531 static int __init set_init_ctx(void)
1533 struct cred *cred = (struct cred *)current->real_cred;
1535 set_cred_label(cred, aa_get_label(ns_unconfined(root_ns)));
1540 static void destroy_buffers(void)
1544 for_each_possible_cpu(i) {
1545 for_each_cpu_buffer(j) {
1546 kfree(per_cpu(aa_buffers, i).buf[j]);
1547 per_cpu(aa_buffers, i).buf[j] = NULL;
1552 static int __init alloc_buffers(void)
1556 for_each_possible_cpu(i) {
1557 for_each_cpu_buffer(j) {
1560 if (cpu_to_node(i) > num_online_nodes())
1561 /* fallback to kmalloc for offline nodes */
1562 buffer = kmalloc(aa_g_path_max, GFP_KERNEL);
1564 buffer = kmalloc_node(aa_g_path_max, GFP_KERNEL,
1570 per_cpu(aa_buffers, i).buf[j] = buffer;
1577 #ifdef CONFIG_SYSCTL
1578 static int apparmor_dointvec(struct ctl_table *table, int write,
1579 void __user *buffer, size_t *lenp, loff_t *ppos)
1581 if (!policy_admin_capable(NULL))
1583 if (!apparmor_enabled)
1586 return proc_dointvec(table, write, buffer, lenp, ppos);
1589 static struct ctl_path apparmor_sysctl_path[] = {
1590 { .procname = "kernel", },
1594 static struct ctl_table apparmor_sysctl_table[] = {
1596 .procname = "unprivileged_userns_apparmor_policy",
1597 .data = &unprivileged_userns_apparmor_policy,
1598 .maxlen = sizeof(int),
1600 .proc_handler = apparmor_dointvec,
1605 static int __init apparmor_init_sysctl(void)
1607 return register_sysctl_paths(apparmor_sysctl_path,
1608 apparmor_sysctl_table) ? 0 : -ENOMEM;
1611 static inline int apparmor_init_sysctl(void)
1615 #endif /* CONFIG_SYSCTL */
1617 #if defined(CONFIG_NETFILTER) && defined(CONFIG_NETWORK_SECMARK)
1618 static unsigned int apparmor_ip_postroute(void *priv,
1619 struct sk_buff *skb,
1620 const struct nf_hook_state *state)
1622 struct aa_sk_ctx *ctx;
1628 sk = skb_to_full_sk(skb);
1633 if (!apparmor_secmark_check(ctx->label, OP_SENDMSG, AA_MAY_SEND,
1637 return NF_DROP_ERR(-ECONNREFUSED);
1641 static unsigned int apparmor_ipv4_postroute(void *priv,
1642 struct sk_buff *skb,
1643 const struct nf_hook_state *state)
1645 return apparmor_ip_postroute(priv, skb, state);
1648 #if IS_ENABLED(CONFIG_IPV6)
1649 static unsigned int apparmor_ipv6_postroute(void *priv,
1650 struct sk_buff *skb,
1651 const struct nf_hook_state *state)
1653 return apparmor_ip_postroute(priv, skb, state);
1657 static const struct nf_hook_ops apparmor_nf_ops[] = {
1659 .hook = apparmor_ipv4_postroute,
1661 .hooknum = NF_INET_POST_ROUTING,
1662 .priority = NF_IP_PRI_SELINUX_FIRST,
1664 #if IS_ENABLED(CONFIG_IPV6)
1666 .hook = apparmor_ipv6_postroute,
1668 .hooknum = NF_INET_POST_ROUTING,
1669 .priority = NF_IP6_PRI_SELINUX_FIRST,
1674 static int __net_init apparmor_nf_register(struct net *net)
1678 ret = nf_register_net_hooks(net, apparmor_nf_ops,
1679 ARRAY_SIZE(apparmor_nf_ops));
1683 static void __net_exit apparmor_nf_unregister(struct net *net)
1685 nf_unregister_net_hooks(net, apparmor_nf_ops,
1686 ARRAY_SIZE(apparmor_nf_ops));
1689 static struct pernet_operations apparmor_net_ops = {
1690 .init = apparmor_nf_register,
1691 .exit = apparmor_nf_unregister,
1694 static int __init apparmor_nf_ip_init(void)
1698 if (!apparmor_enabled)
1701 err = register_pernet_subsys(&apparmor_net_ops);
1703 panic("Apparmor: register_pernet_subsys: error %d\n", err);
1707 __initcall(apparmor_nf_ip_init);
1710 static int __init apparmor_init(void)
1716 error = aa_setup_dfa_engine();
1718 AA_ERROR("Unable to setup dfa engine\n");
1722 error = aa_alloc_root_ns();
1724 AA_ERROR("Unable to allocate default profile namespace\n");
1728 error = apparmor_init_sysctl();
1730 AA_ERROR("Unable to register sysctls\n");
1735 error = alloc_buffers();
1737 AA_ERROR("Unable to allocate work buffers\n");
1741 error = set_init_ctx();
1743 AA_ERROR("Failed to set context on init task\n");
1747 security_add_hooks(apparmor_hooks, ARRAY_SIZE(apparmor_hooks),
1750 /* Report that AppArmor successfully initialized */
1751 apparmor_initialized = 1;
1752 if (aa_g_profile_mode == APPARMOR_COMPLAIN)
1753 aa_info_message("AppArmor initialized: complain mode enabled");
1754 else if (aa_g_profile_mode == APPARMOR_KILL)
1755 aa_info_message("AppArmor initialized: kill mode enabled");
1757 aa_info_message("AppArmor initialized");
1766 aa_teardown_dfa_engine();
1768 apparmor_enabled = false;
1772 DEFINE_LSM(apparmor) = {
1774 .flags = LSM_FLAG_LEGACY_MAJOR | LSM_FLAG_EXCLUSIVE,
1775 .enabled = &apparmor_enabled,
1776 .blobs = &apparmor_blob_sizes,
1777 .init = apparmor_init,