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Message-Id: <20240411122752.2873562-2-xukuohai@huaweicloud.com>
Date: Thu, 11 Apr 2024 20:27:42 +0800
From: Xu Kuohai <xukuohai@...weicloud.com>
To: bpf@...r.kernel.org,
netdev@...r.kernel.org,
linux-security-module@...r.kernel.org,
linux-kselftest@...r.kernel.org
Cc: Alexei Starovoitov <ast@...nel.org>,
Andrii Nakryiko <andrii@...nel.org>,
Daniel Borkmann <daniel@...earbox.net>,
Martin KaFai Lau <martin.lau@...ux.dev>,
Eduard Zingerman <eddyz87@...il.com>,
Song Liu <song@...nel.org>,
Yonghong Song <yonghong.song@...ux.dev>,
John Fastabend <john.fastabend@...il.com>,
KP Singh <kpsingh@...nel.org>,
Stanislav Fomichev <sdf@...gle.com>,
Hao Luo <haoluo@...gle.com>,
Jiri Olsa <jolsa@...nel.org>,
Matt Bobrowski <mattbobrowski@...gle.com>,
Brendan Jackman <jackmanb@...omium.org>,
Paul Moore <paul@...l-moore.com>,
James Morris <jmorris@...ei.org>,
"Serge E . Hallyn" <serge@...lyn.com>,
Khadija Kamran <kamrankhadijadj@...il.com>,
Casey Schaufler <casey@...aufler-ca.com>,
Ondrej Mosnacek <omosnace@...hat.com>,
Kees Cook <keescook@...omium.org>,
John Johansen <john.johansen@...onical.com>,
Lukas Bulwahn <lukas.bulwahn@...il.com>,
Roberto Sassu <roberto.sassu@...wei.com>,
Shung-Hsi Yu <shung-hsi.yu@...e.com>
Subject: [PATCH bpf-next v3 01/11] bpf, lsm: Annotate lsm hook return value range
From: Xu Kuohai <xukuohai@...wei.com>
Add macro LSM_RET_INT to annotate lsm hook return integer type and the
default return value, and the expected return range.
The LSM_RET_INT is declared as:
LSM_RET_INT(defval, min, max)
where
- defval is the default return value
- min and max indicate the expected return range is [min, max]
The return value range for each lsm hook is taken from the description
in security/security.c.
The expanded result of LSM_RET_INT is not changed, and the compiled
product is not changed.
Signed-off-by: Xu Kuohai <xukuohai@...wei.com>
---
include/linux/lsm_hook_defs.h | 591 +++++++++++++++++-----------------
include/linux/lsm_hooks.h | 6 -
kernel/bpf/bpf_lsm.c | 10 +
security/security.c | 1 +
4 files changed, 313 insertions(+), 295 deletions(-)
diff --git a/include/linux/lsm_hook_defs.h b/include/linux/lsm_hook_defs.h
index 334e00efbde4..708f515ffbf3 100644
--- a/include/linux/lsm_hook_defs.h
+++ b/include/linux/lsm_hook_defs.h
@@ -18,435 +18,448 @@
* The macro LSM_HOOK is used to define the data structures required by
* the LSM framework using the pattern:
*
- * LSM_HOOK(<return_type>, <default_value>, <hook_name>, args...)
+ * LSM_HOOK(<return_type>, <return_description>, <hook_name>, args...)
*
* struct security_hook_heads {
- * #define LSM_HOOK(RET, DEFAULT, NAME, ...) struct hlist_head NAME;
+ * #define LSM_HOOK(RET, RETVAL_DESC, NAME, ...) struct hlist_head NAME;
* #include <linux/lsm_hook_defs.h>
* #undef LSM_HOOK
* };
*/
-LSM_HOOK(int, 0, binder_set_context_mgr, const struct cred *mgr)
-LSM_HOOK(int, 0, binder_transaction, const struct cred *from,
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), binder_set_context_mgr, const struct cred *mgr)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), binder_transaction, const struct cred *from,
const struct cred *to)
-LSM_HOOK(int, 0, binder_transfer_binder, const struct cred *from,
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), binder_transfer_binder, const struct cred *from,
const struct cred *to)
-LSM_HOOK(int, 0, binder_transfer_file, const struct cred *from,
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), binder_transfer_file, const struct cred *from,
const struct cred *to, const struct file *file)
-LSM_HOOK(int, 0, ptrace_access_check, struct task_struct *child,
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), ptrace_access_check, struct task_struct *child,
unsigned int mode)
-LSM_HOOK(int, 0, ptrace_traceme, struct task_struct *parent)
-LSM_HOOK(int, 0, capget, const struct task_struct *target, kernel_cap_t *effective,
- kernel_cap_t *inheritable, kernel_cap_t *permitted)
-LSM_HOOK(int, 0, capset, struct cred *new, const struct cred *old,
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), ptrace_traceme, struct task_struct *parent)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), capget, const struct task_struct *target,
+ kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), capset, struct cred *new, const struct cred *old,
const kernel_cap_t *effective, const kernel_cap_t *inheritable,
const kernel_cap_t *permitted)
-LSM_HOOK(int, 0, capable, const struct cred *cred, struct user_namespace *ns,
- int cap, unsigned int opts)
-LSM_HOOK(int, 0, quotactl, int cmds, int type, int id, const struct super_block *sb)
-LSM_HOOK(int, 0, quota_on, struct dentry *dentry)
-LSM_HOOK(int, 0, syslog, int type)
-LSM_HOOK(int, 0, settime, const struct timespec64 *ts,
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), capable, const struct cred *cred,
+ struct user_namespace *ns, int cap, unsigned int opts)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), quotactl, int cmds, int type, int id,
+ const struct super_block *sb)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), quota_on, struct dentry *dentry)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), syslog, int type)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), settime, const struct timespec64 *ts,
const struct timezone *tz)
-LSM_HOOK(int, 1, vm_enough_memory, struct mm_struct *mm, long pages)
-LSM_HOOK(int, 0, bprm_creds_for_exec, struct linux_binprm *bprm)
-LSM_HOOK(int, 0, bprm_creds_from_file, struct linux_binprm *bprm, const struct file *file)
-LSM_HOOK(int, 0, bprm_check_security, struct linux_binprm *bprm)
+LSM_HOOK(int, LSM_RET_INT(1, INT_MIN, INT_MAX), vm_enough_memory, struct mm_struct *mm, long pages)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), bprm_creds_for_exec, struct linux_binprm *bprm)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), bprm_creds_from_file, struct linux_binprm *bprm,
+ const struct file *file)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), bprm_check_security, struct linux_binprm *bprm)
LSM_HOOK(void, LSM_RET_VOID, bprm_committing_creds, const struct linux_binprm *bprm)
LSM_HOOK(void, LSM_RET_VOID, bprm_committed_creds, const struct linux_binprm *bprm)
-LSM_HOOK(int, 0, fs_context_submount, struct fs_context *fc, struct super_block *reference)
-LSM_HOOK(int, 0, fs_context_dup, struct fs_context *fc,
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), fs_context_submount, struct fs_context *fc,
+ struct super_block *reference)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), fs_context_dup, struct fs_context *fc,
struct fs_context *src_sc)
-LSM_HOOK(int, -ENOPARAM, fs_context_parse_param, struct fs_context *fc,
+LSM_HOOK(int, LSM_RET_INT(-ENOPARAM, -MAX_ERRNO, 0), fs_context_parse_param, struct fs_context *fc,
struct fs_parameter *param)
-LSM_HOOK(int, 0, sb_alloc_security, struct super_block *sb)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), sb_alloc_security, struct super_block *sb)
LSM_HOOK(void, LSM_RET_VOID, sb_delete, struct super_block *sb)
LSM_HOOK(void, LSM_RET_VOID, sb_free_security, struct super_block *sb)
LSM_HOOK(void, LSM_RET_VOID, sb_free_mnt_opts, void *mnt_opts)
-LSM_HOOK(int, 0, sb_eat_lsm_opts, char *orig, void **mnt_opts)
-LSM_HOOK(int, 0, sb_mnt_opts_compat, struct super_block *sb, void *mnt_opts)
-LSM_HOOK(int, 0, sb_remount, struct super_block *sb, void *mnt_opts)
-LSM_HOOK(int, 0, sb_kern_mount, const struct super_block *sb)
-LSM_HOOK(int, 0, sb_show_options, struct seq_file *m, struct super_block *sb)
-LSM_HOOK(int, 0, sb_statfs, struct dentry *dentry)
-LSM_HOOK(int, 0, sb_mount, const char *dev_name, const struct path *path,
- const char *type, unsigned long flags, void *data)
-LSM_HOOK(int, 0, sb_umount, struct vfsmount *mnt, int flags)
-LSM_HOOK(int, 0, sb_pivotroot, const struct path *old_path,
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), sb_eat_lsm_opts, char *orig, void **mnt_opts)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), sb_mnt_opts_compat, struct super_block *sb,
+ void *mnt_opts)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), sb_remount, struct super_block *sb, void *mnt_opts)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), sb_kern_mount, const struct super_block *sb)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), sb_show_options, struct seq_file *m,
+ struct super_block *sb)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), sb_statfs, struct dentry *dentry)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), sb_mount, const char *dev_name,
+ const struct path *path, const char *type, unsigned long flags, void *data)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), sb_umount, struct vfsmount *mnt, int flags)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), sb_pivotroot, const struct path *old_path,
const struct path *new_path)
-LSM_HOOK(int, 0, sb_set_mnt_opts, struct super_block *sb, void *mnt_opts,
- unsigned long kern_flags, unsigned long *set_kern_flags)
-LSM_HOOK(int, 0, sb_clone_mnt_opts, const struct super_block *oldsb,
- struct super_block *newsb, unsigned long kern_flags,
- unsigned long *set_kern_flags)
-LSM_HOOK(int, 0, move_mount, const struct path *from_path,
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), sb_set_mnt_opts, struct super_block *sb,
+ void *mnt_opts, unsigned long kern_flags, unsigned long *set_kern_flags)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), sb_clone_mnt_opts, const struct super_block *oldsb,
+ struct super_block *newsb, unsigned long kern_flags, unsigned long *set_kern_flags)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), move_mount, const struct path *from_path,
const struct path *to_path)
-LSM_HOOK(int, -EOPNOTSUPP, dentry_init_security, struct dentry *dentry,
- int mode, const struct qstr *name, const char **xattr_name,
- void **ctx, u32 *ctxlen)
-LSM_HOOK(int, 0, dentry_create_files_as, struct dentry *dentry, int mode,
- struct qstr *name, const struct cred *old, struct cred *new)
+LSM_HOOK(int, LSM_RET_INT(-EOPNOTSUPP, -MAX_ERRNO, 0), dentry_init_security, struct dentry *dentry,
+ int mode, const struct qstr *name, const char **xattr_name, void **ctx, u32 *ctxlen)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), dentry_create_files_as, struct dentry *dentry,
+ int mode, struct qstr *name, const struct cred *old, struct cred *new)
#ifdef CONFIG_SECURITY_PATH
-LSM_HOOK(int, 0, path_unlink, const struct path *dir, struct dentry *dentry)
-LSM_HOOK(int, 0, path_mkdir, const struct path *dir, struct dentry *dentry,
- umode_t mode)
-LSM_HOOK(int, 0, path_rmdir, const struct path *dir, struct dentry *dentry)
-LSM_HOOK(int, 0, path_mknod, const struct path *dir, struct dentry *dentry,
- umode_t mode, unsigned int dev)
-LSM_HOOK(void, LSM_RET_VOID, path_post_mknod, struct mnt_idmap *idmap,
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), path_unlink, const struct path *dir,
+ struct dentry *dentry)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), path_mkdir, const struct path *dir,
+ struct dentry *dentry, umode_t mode)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), path_rmdir, const struct path *dir,
struct dentry *dentry)
-LSM_HOOK(int, 0, path_truncate, const struct path *path)
-LSM_HOOK(int, 0, path_symlink, const struct path *dir, struct dentry *dentry,
- const char *old_name)
-LSM_HOOK(int, 0, path_link, struct dentry *old_dentry,
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), path_mknod, const struct path *dir,
+ struct dentry *dentry, umode_t mode, unsigned int dev)
+LSM_HOOK(void, LSM_RET_VOID, path_post_mknod, struct mnt_idmap *idmap, struct dentry *dentry)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), path_truncate, const struct path *path)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), path_symlink, const struct path *dir,
+ struct dentry *dentry, const char *old_name)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), path_link, struct dentry *old_dentry,
const struct path *new_dir, struct dentry *new_dentry)
-LSM_HOOK(int, 0, path_rename, const struct path *old_dir,
- struct dentry *old_dentry, const struct path *new_dir,
- struct dentry *new_dentry, unsigned int flags)
-LSM_HOOK(int, 0, path_chmod, const struct path *path, umode_t mode)
-LSM_HOOK(int, 0, path_chown, const struct path *path, kuid_t uid, kgid_t gid)
-LSM_HOOK(int, 0, path_chroot, const struct path *path)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), path_rename, const struct path *old_dir,
+ struct dentry *old_dentry, const struct path *new_dir, struct dentry *new_dentry,
+ unsigned int flags)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), path_chmod, const struct path *path, umode_t mode)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), path_chown, const struct path *path, kuid_t uid,
+ kgid_t gid)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), path_chroot, const struct path *path)
#endif /* CONFIG_SECURITY_PATH */
/* Needed for inode based security check */
-LSM_HOOK(int, 0, path_notify, const struct path *path, u64 mask,
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), path_notify, const struct path *path, u64 mask,
unsigned int obj_type)
-LSM_HOOK(int, 0, inode_alloc_security, struct inode *inode)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), inode_alloc_security, struct inode *inode)
LSM_HOOK(void, LSM_RET_VOID, inode_free_security, struct inode *inode)
-LSM_HOOK(int, -EOPNOTSUPP, inode_init_security, struct inode *inode,
- struct inode *dir, const struct qstr *qstr, struct xattr *xattrs,
- int *xattr_count)
-LSM_HOOK(int, 0, inode_init_security_anon, struct inode *inode,
+LSM_HOOK(int, LSM_RET_INT(-EOPNOTSUPP, -MAX_ERRNO, 0), inode_init_security, struct inode *inode,
+ struct inode *dir, const struct qstr *qstr, struct xattr *xattrs, int *xattr_count)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), inode_init_security_anon, struct inode *inode,
const struct qstr *name, const struct inode *context_inode)
-LSM_HOOK(int, 0, inode_create, struct inode *dir, struct dentry *dentry,
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), inode_create, struct inode *dir, struct dentry *dentry,
umode_t mode)
LSM_HOOK(void, LSM_RET_VOID, inode_post_create_tmpfile, struct mnt_idmap *idmap,
struct inode *inode)
-LSM_HOOK(int, 0, inode_link, struct dentry *old_dentry, struct inode *dir,
- struct dentry *new_dentry)
-LSM_HOOK(int, 0, inode_unlink, struct inode *dir, struct dentry *dentry)
-LSM_HOOK(int, 0, inode_symlink, struct inode *dir, struct dentry *dentry,
- const char *old_name)
-LSM_HOOK(int, 0, inode_mkdir, struct inode *dir, struct dentry *dentry,
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), inode_link, struct dentry *old_dentry,
+ struct inode *dir, struct dentry *new_dentry)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), inode_unlink, struct inode *dir, struct dentry *dentry)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), inode_symlink, struct inode *dir,
+ struct dentry *dentry, const char *old_name)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), inode_mkdir, struct inode *dir, struct dentry *dentry,
umode_t mode)
-LSM_HOOK(int, 0, inode_rmdir, struct inode *dir, struct dentry *dentry)
-LSM_HOOK(int, 0, inode_mknod, struct inode *dir, struct dentry *dentry,
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), inode_rmdir, struct inode *dir, struct dentry *dentry)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), inode_mknod, struct inode *dir, struct dentry *dentry,
umode_t mode, dev_t dev)
-LSM_HOOK(int, 0, inode_rename, struct inode *old_dir, struct dentry *old_dentry,
- struct inode *new_dir, struct dentry *new_dentry)
-LSM_HOOK(int, 0, inode_readlink, struct dentry *dentry)
-LSM_HOOK(int, 0, inode_follow_link, struct dentry *dentry, struct inode *inode,
- bool rcu)
-LSM_HOOK(int, 0, inode_permission, struct inode *inode, int mask)
-LSM_HOOK(int, 0, inode_setattr, struct mnt_idmap *idmap, struct dentry *dentry,
- struct iattr *attr)
-LSM_HOOK(void, LSM_RET_VOID, inode_post_setattr, struct mnt_idmap *idmap,
- struct dentry *dentry, int ia_valid)
-LSM_HOOK(int, 0, inode_getattr, const struct path *path)
-LSM_HOOK(int, 0, inode_setxattr, struct mnt_idmap *idmap,
- struct dentry *dentry, const char *name, const void *value,
- size_t size, int flags)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), inode_rename, struct inode *old_dir,
+ struct dentry *old_dentry, struct inode *new_dir, struct dentry *new_dentry)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), inode_readlink, struct dentry *dentry)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), inode_follow_link, struct dentry *dentry,
+ struct inode *inode, bool rcu)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), inode_permission, struct inode *inode, int mask)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), inode_setattr, struct mnt_idmap *idmap,
+ struct dentry *dentry, struct iattr *attr)
+LSM_HOOK(void, LSM_RET_VOID, inode_post_setattr, struct mnt_idmap *idmap, struct dentry *dentry,
+ int ia_valid)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), inode_getattr, const struct path *path)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), inode_setxattr, struct mnt_idmap *idmap,
+ struct dentry *dentry, const char *name, const void *value, size_t size, int flags)
LSM_HOOK(void, LSM_RET_VOID, inode_post_setxattr, struct dentry *dentry,
const char *name, const void *value, size_t size, int flags)
-LSM_HOOK(int, 0, inode_getxattr, struct dentry *dentry, const char *name)
-LSM_HOOK(int, 0, inode_listxattr, struct dentry *dentry)
-LSM_HOOK(int, 0, inode_removexattr, struct mnt_idmap *idmap,
- struct dentry *dentry, const char *name)
-LSM_HOOK(void, LSM_RET_VOID, inode_post_removexattr, struct dentry *dentry,
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), inode_getxattr, struct dentry *dentry,
const char *name)
-LSM_HOOK(int, 0, inode_set_acl, struct mnt_idmap *idmap,
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), inode_listxattr, struct dentry *dentry)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), inode_removexattr, struct mnt_idmap *idmap,
+ struct dentry *dentry, const char *name)
+LSM_HOOK(void, LSM_RET_VOID, inode_post_removexattr, struct dentry *dentry, const char *name)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), inode_set_acl, struct mnt_idmap *idmap,
struct dentry *dentry, const char *acl_name, struct posix_acl *kacl)
LSM_HOOK(void, LSM_RET_VOID, inode_post_set_acl, struct dentry *dentry,
const char *acl_name, struct posix_acl *kacl)
-LSM_HOOK(int, 0, inode_get_acl, struct mnt_idmap *idmap,
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), inode_get_acl, struct mnt_idmap *idmap,
struct dentry *dentry, const char *acl_name)
-LSM_HOOK(int, 0, inode_remove_acl, struct mnt_idmap *idmap,
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), inode_remove_acl, struct mnt_idmap *idmap,
struct dentry *dentry, const char *acl_name)
LSM_HOOK(void, LSM_RET_VOID, inode_post_remove_acl, struct mnt_idmap *idmap,
struct dentry *dentry, const char *acl_name)
-LSM_HOOK(int, 0, inode_need_killpriv, struct dentry *dentry)
-LSM_HOOK(int, 0, inode_killpriv, struct mnt_idmap *idmap,
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, INT_MAX), inode_need_killpriv, struct dentry *dentry)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), inode_killpriv, struct mnt_idmap *idmap,
struct dentry *dentry)
-LSM_HOOK(int, -EOPNOTSUPP, inode_getsecurity, struct mnt_idmap *idmap,
- struct inode *inode, const char *name, void **buffer, bool alloc)
-LSM_HOOK(int, -EOPNOTSUPP, inode_setsecurity, struct inode *inode,
+LSM_HOOK(int, LSM_RET_INT(-EOPNOTSUPP, -MAX_ERRNO, INT_MAX), inode_getsecurity,
+ struct mnt_idmap *idmap, struct inode *inode, const char *name, void **buffer, bool alloc)
+LSM_HOOK(int, LSM_RET_INT(-EOPNOTSUPP, -MAX_ERRNO, 0), inode_setsecurity, struct inode *inode,
const char *name, const void *value, size_t size, int flags)
-LSM_HOOK(int, 0, inode_listsecurity, struct inode *inode, char *buffer,
- size_t buffer_size)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, INT_MAX), inode_listsecurity, struct inode *inode,
+ char *buffer, size_t buffer_size)
LSM_HOOK(void, LSM_RET_VOID, inode_getsecid, struct inode *inode, u32 *secid)
-LSM_HOOK(int, 0, inode_copy_up, struct dentry *src, struct cred **new)
-LSM_HOOK(int, -EOPNOTSUPP, inode_copy_up_xattr, const char *name)
-LSM_HOOK(int, 0, kernfs_init_security, struct kernfs_node *kn_dir,
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), inode_copy_up, struct dentry *src, struct cred **new)
+LSM_HOOK(int, LSM_RET_INT(-EOPNOTSUPP, -MAX_ERRNO, 1), inode_copy_up_xattr, const char *name)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), kernfs_init_security, struct kernfs_node *kn_dir,
struct kernfs_node *kn)
-LSM_HOOK(int, 0, file_permission, struct file *file, int mask)
-LSM_HOOK(int, 0, file_alloc_security, struct file *file)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), file_permission, struct file *file, int mask)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), file_alloc_security, struct file *file)
LSM_HOOK(void, LSM_RET_VOID, file_release, struct file *file)
LSM_HOOK(void, LSM_RET_VOID, file_free_security, struct file *file)
-LSM_HOOK(int, 0, file_ioctl, struct file *file, unsigned int cmd,
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), file_ioctl, struct file *file, unsigned int cmd,
unsigned long arg)
-LSM_HOOK(int, 0, file_ioctl_compat, struct file *file, unsigned int cmd,
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), file_ioctl_compat, struct file *file, unsigned int cmd,
unsigned long arg)
-LSM_HOOK(int, 0, mmap_addr, unsigned long addr)
-LSM_HOOK(int, 0, mmap_file, struct file *file, unsigned long reqprot,
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), mmap_addr, unsigned long addr)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), mmap_file, struct file *file, unsigned long reqprot,
unsigned long prot, unsigned long flags)
-LSM_HOOK(int, 0, file_mprotect, struct vm_area_struct *vma,
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), file_mprotect, struct vm_area_struct *vma,
unsigned long reqprot, unsigned long prot)
-LSM_HOOK(int, 0, file_lock, struct file *file, unsigned int cmd)
-LSM_HOOK(int, 0, file_fcntl, struct file *file, unsigned int cmd,
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), file_lock, struct file *file, unsigned int cmd)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), file_fcntl, struct file *file, unsigned int cmd,
unsigned long arg)
LSM_HOOK(void, LSM_RET_VOID, file_set_fowner, struct file *file)
-LSM_HOOK(int, 0, file_send_sigiotask, struct task_struct *tsk,
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), file_send_sigiotask, struct task_struct *tsk,
struct fown_struct *fown, int sig)
-LSM_HOOK(int, 0, file_receive, struct file *file)
-LSM_HOOK(int, 0, file_open, struct file *file)
-LSM_HOOK(int, 0, file_post_open, struct file *file, int mask)
-LSM_HOOK(int, 0, file_truncate, struct file *file)
-LSM_HOOK(int, 0, task_alloc, struct task_struct *task,
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), file_receive, struct file *file)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), file_open, struct file *file)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), file_post_open, struct file *file, int mask)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), file_truncate, struct file *file)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), task_alloc, struct task_struct *task,
unsigned long clone_flags)
LSM_HOOK(void, LSM_RET_VOID, task_free, struct task_struct *task)
-LSM_HOOK(int, 0, cred_alloc_blank, struct cred *cred, gfp_t gfp)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), cred_alloc_blank, struct cred *cred, gfp_t gfp)
LSM_HOOK(void, LSM_RET_VOID, cred_free, struct cred *cred)
-LSM_HOOK(int, 0, cred_prepare, struct cred *new, const struct cred *old,
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), cred_prepare, struct cred *new, const struct cred *old,
gfp_t gfp)
-LSM_HOOK(void, LSM_RET_VOID, cred_transfer, struct cred *new,
- const struct cred *old)
+LSM_HOOK(void, LSM_RET_VOID, cred_transfer, struct cred *new, const struct cred *old)
LSM_HOOK(void, LSM_RET_VOID, cred_getsecid, const struct cred *c, u32 *secid)
-LSM_HOOK(int, 0, kernel_act_as, struct cred *new, u32 secid)
-LSM_HOOK(int, 0, kernel_create_files_as, struct cred *new, struct inode *inode)
-LSM_HOOK(int, 0, kernel_module_request, char *kmod_name)
-LSM_HOOK(int, 0, kernel_load_data, enum kernel_load_data_id id, bool contents)
-LSM_HOOK(int, 0, kernel_post_load_data, char *buf, loff_t size,
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), kernel_act_as, struct cred *new, u32 secid)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), kernel_create_files_as, struct cred *new,
+ struct inode *inode)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), kernel_module_request, char *kmod_name)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), kernel_load_data, enum kernel_load_data_id id,
+ bool contents)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), kernel_post_load_data, char *buf, loff_t size,
enum kernel_load_data_id id, char *description)
-LSM_HOOK(int, 0, kernel_read_file, struct file *file,
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), kernel_read_file, struct file *file,
enum kernel_read_file_id id, bool contents)
-LSM_HOOK(int, 0, kernel_post_read_file, struct file *file, char *buf,
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), kernel_post_read_file, struct file *file, char *buf,
loff_t size, enum kernel_read_file_id id)
-LSM_HOOK(int, 0, task_fix_setuid, struct cred *new, const struct cred *old,
- int flags)
-LSM_HOOK(int, 0, task_fix_setgid, struct cred *new, const struct cred * old,
- int flags)
-LSM_HOOK(int, 0, task_fix_setgroups, struct cred *new, const struct cred * old)
-LSM_HOOK(int, 0, task_setpgid, struct task_struct *p, pid_t pgid)
-LSM_HOOK(int, 0, task_getpgid, struct task_struct *p)
-LSM_HOOK(int, 0, task_getsid, struct task_struct *p)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), task_fix_setuid, struct cred *new,
+ const struct cred *old, int flags)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), task_fix_setgid, struct cred *new,
+ const struct cred *old, int flags)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), task_fix_setgroups, struct cred *new,
+ const struct cred *old)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), task_setpgid, struct task_struct *p, pid_t pgid)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), task_getpgid, struct task_struct *p)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), task_getsid, struct task_struct *p)
LSM_HOOK(void, LSM_RET_VOID, current_getsecid_subj, u32 *secid)
-LSM_HOOK(void, LSM_RET_VOID, task_getsecid_obj,
- struct task_struct *p, u32 *secid)
-LSM_HOOK(int, 0, task_setnice, struct task_struct *p, int nice)
-LSM_HOOK(int, 0, task_setioprio, struct task_struct *p, int ioprio)
-LSM_HOOK(int, 0, task_getioprio, struct task_struct *p)
-LSM_HOOK(int, 0, task_prlimit, const struct cred *cred,
+LSM_HOOK(void, LSM_RET_VOID, task_getsecid_obj, struct task_struct *p, u32 *secid)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), task_setnice, struct task_struct *p, int nice)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), task_setioprio, struct task_struct *p, int ioprio)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), task_getioprio, struct task_struct *p)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), task_prlimit, const struct cred *cred,
const struct cred *tcred, unsigned int flags)
-LSM_HOOK(int, 0, task_setrlimit, struct task_struct *p, unsigned int resource,
- struct rlimit *new_rlim)
-LSM_HOOK(int, 0, task_setscheduler, struct task_struct *p)
-LSM_HOOK(int, 0, task_getscheduler, struct task_struct *p)
-LSM_HOOK(int, 0, task_movememory, struct task_struct *p)
-LSM_HOOK(int, 0, task_kill, struct task_struct *p, struct kernel_siginfo *info,
- int sig, const struct cred *cred)
-LSM_HOOK(int, -ENOSYS, task_prctl, int option, unsigned long arg2,
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), task_setrlimit, struct task_struct *p,
+ unsigned int resource, struct rlimit *new_rlim)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), task_setscheduler, struct task_struct *p)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), task_getscheduler, struct task_struct *p)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), task_movememory, struct task_struct *p)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), task_kill, struct task_struct *p,
+ struct kernel_siginfo *info, int sig, const struct cred *cred)
+LSM_HOOK(int, LSM_RET_INT(-ENOSYS, -MAX_ERRNO, INT_MAX), task_prctl, int option, unsigned long arg2,
unsigned long arg3, unsigned long arg4, unsigned long arg5)
-LSM_HOOK(void, LSM_RET_VOID, task_to_inode, struct task_struct *p,
- struct inode *inode)
-LSM_HOOK(int, 0, userns_create, const struct cred *cred)
-LSM_HOOK(int, 0, ipc_permission, struct kern_ipc_perm *ipcp, short flag)
-LSM_HOOK(void, LSM_RET_VOID, ipc_getsecid, struct kern_ipc_perm *ipcp,
- u32 *secid)
-LSM_HOOK(int, 0, msg_msg_alloc_security, struct msg_msg *msg)
+LSM_HOOK(void, LSM_RET_VOID, task_to_inode, struct task_struct *p, struct inode *inode)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), userns_create, const struct cred *cred)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), ipc_permission, struct kern_ipc_perm *ipcp, short flag)
+LSM_HOOK(void, LSM_RET_VOID, ipc_getsecid, struct kern_ipc_perm *ipcp, u32 *secid)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), msg_msg_alloc_security, struct msg_msg *msg)
LSM_HOOK(void, LSM_RET_VOID, msg_msg_free_security, struct msg_msg *msg)
-LSM_HOOK(int, 0, msg_queue_alloc_security, struct kern_ipc_perm *perm)
-LSM_HOOK(void, LSM_RET_VOID, msg_queue_free_security,
- struct kern_ipc_perm *perm)
-LSM_HOOK(int, 0, msg_queue_associate, struct kern_ipc_perm *perm, int msqflg)
-LSM_HOOK(int, 0, msg_queue_msgctl, struct kern_ipc_perm *perm, int cmd)
-LSM_HOOK(int, 0, msg_queue_msgsnd, struct kern_ipc_perm *perm,
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), msg_queue_alloc_security, struct kern_ipc_perm *perm)
+LSM_HOOK(void, LSM_RET_VOID, msg_queue_free_security, struct kern_ipc_perm *perm)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), msg_queue_associate, struct kern_ipc_perm *perm,
+ int msqflg)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), msg_queue_msgctl, struct kern_ipc_perm *perm, int cmd)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), msg_queue_msgsnd, struct kern_ipc_perm *perm,
struct msg_msg *msg, int msqflg)
-LSM_HOOK(int, 0, msg_queue_msgrcv, struct kern_ipc_perm *perm,
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), msg_queue_msgrcv, struct kern_ipc_perm *perm,
struct msg_msg *msg, struct task_struct *target, long type, int mode)
-LSM_HOOK(int, 0, shm_alloc_security, struct kern_ipc_perm *perm)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), shm_alloc_security, struct kern_ipc_perm *perm)
LSM_HOOK(void, LSM_RET_VOID, shm_free_security, struct kern_ipc_perm *perm)
-LSM_HOOK(int, 0, shm_associate, struct kern_ipc_perm *perm, int shmflg)
-LSM_HOOK(int, 0, shm_shmctl, struct kern_ipc_perm *perm, int cmd)
-LSM_HOOK(int, 0, shm_shmat, struct kern_ipc_perm *perm, char __user *shmaddr,
- int shmflg)
-LSM_HOOK(int, 0, sem_alloc_security, struct kern_ipc_perm *perm)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), shm_associate, struct kern_ipc_perm *perm, int shmflg)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), shm_shmctl, struct kern_ipc_perm *perm, int cmd)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), shm_shmat, struct kern_ipc_perm *perm,
+ char __user *shmaddr, int shmflg)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), sem_alloc_security, struct kern_ipc_perm *perm)
LSM_HOOK(void, LSM_RET_VOID, sem_free_security, struct kern_ipc_perm *perm)
-LSM_HOOK(int, 0, sem_associate, struct kern_ipc_perm *perm, int semflg)
-LSM_HOOK(int, 0, sem_semctl, struct kern_ipc_perm *perm, int cmd)
-LSM_HOOK(int, 0, sem_semop, struct kern_ipc_perm *perm, struct sembuf *sops,
- unsigned nsops, int alter)
-LSM_HOOK(int, 0, netlink_send, struct sock *sk, struct sk_buff *skb)
-LSM_HOOK(void, LSM_RET_VOID, d_instantiate, struct dentry *dentry,
- struct inode *inode)
-LSM_HOOK(int, -EOPNOTSUPP, getselfattr, unsigned int attr,
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), sem_associate, struct kern_ipc_perm *perm, int semflg)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), sem_semctl, struct kern_ipc_perm *perm, int cmd)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), sem_semop, struct kern_ipc_perm *perm,
+ struct sembuf *sops, unsigned nsops, int alter)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), netlink_send, struct sock *sk, struct sk_buff *skb)
+LSM_HOOK(void, LSM_RET_VOID, d_instantiate, struct dentry *dentry, struct inode *inode)
+LSM_HOOK(int, LSM_RET_INT(-EOPNOTSUPP, -MAX_ERRNO, INT_MAX), getselfattr, unsigned int attr,
struct lsm_ctx __user *ctx, u32 *size, u32 flags)
-LSM_HOOK(int, -EOPNOTSUPP, setselfattr, unsigned int attr,
+LSM_HOOK(int, LSM_RET_INT(-EOPNOTSUPP, -MAX_ERRNO, 0), setselfattr, unsigned int attr,
struct lsm_ctx *ctx, u32 size, u32 flags)
-LSM_HOOK(int, -EINVAL, getprocattr, struct task_struct *p, const char *name,
- char **value)
-LSM_HOOK(int, -EINVAL, setprocattr, const char *name, void *value, size_t size)
-LSM_HOOK(int, 0, ismaclabel, const char *name)
-LSM_HOOK(int, -EOPNOTSUPP, secid_to_secctx, u32 secid, char **secdata,
+LSM_HOOK(int, LSM_RET_INT(-EINVAL, -MAX_ERRNO, INT_MAX), getprocattr, struct task_struct *p,
+ const char *name, char **value)
+LSM_HOOK(int, LSM_RET_INT(-EINVAL, -MAX_ERRNO, INT_MAX), setprocattr, const char *name, void *value,
+ size_t size)
+LSM_HOOK(int, LSM_RET_INT(0, 0, 1), ismaclabel, const char *name)
+LSM_HOOK(int, LSM_RET_INT(-EOPNOTSUPP, -MAX_ERRNO, 0), secid_to_secctx, u32 secid, char **secdata,
u32 *seclen)
-LSM_HOOK(int, 0, secctx_to_secid, const char *secdata, u32 seclen, u32 *secid)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), secctx_to_secid, const char *secdata, u32 seclen,
+ u32 *secid)
LSM_HOOK(void, LSM_RET_VOID, release_secctx, char *secdata, u32 seclen)
LSM_HOOK(void, LSM_RET_VOID, inode_invalidate_secctx, struct inode *inode)
-LSM_HOOK(int, 0, inode_notifysecctx, struct inode *inode, void *ctx, u32 ctxlen)
-LSM_HOOK(int, 0, inode_setsecctx, struct dentry *dentry, void *ctx, u32 ctxlen)
-LSM_HOOK(int, -EOPNOTSUPP, inode_getsecctx, struct inode *inode, void **ctx,
- u32 *ctxlen)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), inode_notifysecctx, struct inode *inode, void *ctx,
+ u32 ctxlen)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), inode_setsecctx, struct dentry *dentry, void *ctx,
+ u32 ctxlen)
+LSM_HOOK(int, LSM_RET_INT(-EOPNOTSUPP, -MAX_ERRNO, 0), inode_getsecctx, struct inode *inode,
+ void **ctx, u32 *ctxlen)
#if defined(CONFIG_SECURITY) && defined(CONFIG_WATCH_QUEUE)
-LSM_HOOK(int, 0, post_notification, const struct cred *w_cred,
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), post_notification, const struct cred *w_cred,
const struct cred *cred, struct watch_notification *n)
#endif /* CONFIG_SECURITY && CONFIG_WATCH_QUEUE */
#if defined(CONFIG_SECURITY) && defined(CONFIG_KEY_NOTIFICATIONS)
-LSM_HOOK(int, 0, watch_key, struct key *key)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), watch_key, struct key *key)
#endif /* CONFIG_SECURITY && CONFIG_KEY_NOTIFICATIONS */
#ifdef CONFIG_SECURITY_NETWORK
-LSM_HOOK(int, 0, unix_stream_connect, struct sock *sock, struct sock *other,
- struct sock *newsk)
-LSM_HOOK(int, 0, unix_may_send, struct socket *sock, struct socket *other)
-LSM_HOOK(int, 0, socket_create, int family, int type, int protocol, int kern)
-LSM_HOOK(int, 0, socket_post_create, struct socket *sock, int family, int type,
- int protocol, int kern)
-LSM_HOOK(int, 0, socket_socketpair, struct socket *socka, struct socket *sockb)
-LSM_HOOK(int, 0, socket_bind, struct socket *sock, struct sockaddr *address,
- int addrlen)
-LSM_HOOK(int, 0, socket_connect, struct socket *sock, struct sockaddr *address,
- int addrlen)
-LSM_HOOK(int, 0, socket_listen, struct socket *sock, int backlog)
-LSM_HOOK(int, 0, socket_accept, struct socket *sock, struct socket *newsock)
-LSM_HOOK(int, 0, socket_sendmsg, struct socket *sock, struct msghdr *msg,
- int size)
-LSM_HOOK(int, 0, socket_recvmsg, struct socket *sock, struct msghdr *msg,
- int size, int flags)
-LSM_HOOK(int, 0, socket_getsockname, struct socket *sock)
-LSM_HOOK(int, 0, socket_getpeername, struct socket *sock)
-LSM_HOOK(int, 0, socket_getsockopt, struct socket *sock, int level, int optname)
-LSM_HOOK(int, 0, socket_setsockopt, struct socket *sock, int level, int optname)
-LSM_HOOK(int, 0, socket_shutdown, struct socket *sock, int how)
-LSM_HOOK(int, 0, socket_sock_rcv_skb, struct sock *sk, struct sk_buff *skb)
-LSM_HOOK(int, -ENOPROTOOPT, socket_getpeersec_stream, struct socket *sock,
- sockptr_t optval, sockptr_t optlen, unsigned int len)
-LSM_HOOK(int, -ENOPROTOOPT, socket_getpeersec_dgram, struct socket *sock,
- struct sk_buff *skb, u32 *secid)
-LSM_HOOK(int, 0, sk_alloc_security, struct sock *sk, int family, gfp_t priority)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), unix_stream_connect, struct sock *sock,
+ struct sock *other, struct sock *newsk)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), unix_may_send, struct socket *sock,
+ struct socket *other)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), socket_create, int family, int type, int protocol,
+ int kern)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), socket_post_create, struct socket *sock, int family,
+ int type, int protocol, int kern)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), socket_socketpair, struct socket *socka,
+ struct socket *sockb)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), socket_bind, struct socket *sock,
+ struct sockaddr *address, int addrlen)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), socket_connect, struct socket *sock,
+ struct sockaddr *address, int addrlen)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), socket_listen, struct socket *sock, int backlog)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), socket_accept, struct socket *sock,
+ struct socket *newsock)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), socket_sendmsg, struct socket *sock,
+ struct msghdr *msg, int size)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), socket_recvmsg, struct socket *sock,
+ struct msghdr *msg, int size, int flags)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), socket_getsockname, struct socket *sock)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), socket_getpeername, struct socket *sock)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), socket_getsockopt, struct socket *sock, int level,
+ int optname)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), socket_setsockopt, struct socket *sock, int level,
+ int optname)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), socket_shutdown, struct socket *sock, int how)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), socket_sock_rcv_skb, struct sock *sk,
+ struct sk_buff *skb)
+LSM_HOOK(int, LSM_RET_INT(-ENOPROTOOPT, -MAX_ERRNO, 0), socket_getpeersec_stream,
+ struct socket *sock, sockptr_t optval, sockptr_t optlen, unsigned int len)
+LSM_HOOK(int, LSM_RET_INT(-ENOPROTOOPT, -MAX_ERRNO, 0), socket_getpeersec_dgram,
+ struct socket *sock, struct sk_buff *skb, u32 *secid)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), sk_alloc_security, struct sock *sk, int family,
+ gfp_t priority)
LSM_HOOK(void, LSM_RET_VOID, sk_free_security, struct sock *sk)
-LSM_HOOK(void, LSM_RET_VOID, sk_clone_security, const struct sock *sk,
- struct sock *newsk)
+LSM_HOOK(void, LSM_RET_VOID, sk_clone_security, const struct sock *sk, struct sock *newsk)
LSM_HOOK(void, LSM_RET_VOID, sk_getsecid, const struct sock *sk, u32 *secid)
LSM_HOOK(void, LSM_RET_VOID, sock_graft, struct sock *sk, struct socket *parent)
-LSM_HOOK(int, 0, inet_conn_request, const struct sock *sk, struct sk_buff *skb,
- struct request_sock *req)
-LSM_HOOK(void, LSM_RET_VOID, inet_csk_clone, struct sock *newsk,
- const struct request_sock *req)
-LSM_HOOK(void, LSM_RET_VOID, inet_conn_established, struct sock *sk,
- struct sk_buff *skb)
-LSM_HOOK(int, 0, secmark_relabel_packet, u32 secid)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), inet_conn_request, const struct sock *sk,
+ struct sk_buff *skb, struct request_sock *req)
+LSM_HOOK(void, LSM_RET_VOID, inet_csk_clone, struct sock *newsk, const struct request_sock *req)
+LSM_HOOK(void, LSM_RET_VOID, inet_conn_established, struct sock *sk, struct sk_buff *skb)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), secmark_relabel_packet, u32 secid)
LSM_HOOK(void, LSM_RET_VOID, secmark_refcount_inc, void)
LSM_HOOK(void, LSM_RET_VOID, secmark_refcount_dec, void)
LSM_HOOK(void, LSM_RET_VOID, req_classify_flow, const struct request_sock *req,
struct flowi_common *flic)
-LSM_HOOK(int, 0, tun_dev_alloc_security, void **security)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), tun_dev_alloc_security, void **security)
LSM_HOOK(void, LSM_RET_VOID, tun_dev_free_security, void *security)
-LSM_HOOK(int, 0, tun_dev_create, void)
-LSM_HOOK(int, 0, tun_dev_attach_queue, void *security)
-LSM_HOOK(int, 0, tun_dev_attach, struct sock *sk, void *security)
-LSM_HOOK(int, 0, tun_dev_open, void *security)
-LSM_HOOK(int, 0, sctp_assoc_request, struct sctp_association *asoc,
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), tun_dev_create, void)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), tun_dev_attach_queue, void *security)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), tun_dev_attach, struct sock *sk, void *security)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), tun_dev_open, void *security)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), sctp_assoc_request, struct sctp_association *asoc,
struct sk_buff *skb)
-LSM_HOOK(int, 0, sctp_bind_connect, struct sock *sk, int optname,
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), sctp_bind_connect, struct sock *sk, int optname,
struct sockaddr *address, int addrlen)
LSM_HOOK(void, LSM_RET_VOID, sctp_sk_clone, struct sctp_association *asoc,
struct sock *sk, struct sock *newsk)
-LSM_HOOK(int, 0, sctp_assoc_established, struct sctp_association *asoc,
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), sctp_assoc_established, struct sctp_association *asoc,
struct sk_buff *skb)
-LSM_HOOK(int, 0, mptcp_add_subflow, struct sock *sk, struct sock *ssk)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), mptcp_add_subflow, struct sock *sk, struct sock *ssk)
#endif /* CONFIG_SECURITY_NETWORK */
#ifdef CONFIG_SECURITY_INFINIBAND
-LSM_HOOK(int, 0, ib_pkey_access, void *sec, u64 subnet_prefix, u16 pkey)
-LSM_HOOK(int, 0, ib_endport_manage_subnet, void *sec, const char *dev_name,
- u8 port_num)
-LSM_HOOK(int, 0, ib_alloc_security, void **sec)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), ib_pkey_access, void *sec, u64 subnet_prefix, u16 pkey)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), ib_endport_manage_subnet, void *sec,
+ const char *dev_name, u8 port_num)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), ib_alloc_security, void **sec)
LSM_HOOK(void, LSM_RET_VOID, ib_free_security, void *sec)
#endif /* CONFIG_SECURITY_INFINIBAND */
#ifdef CONFIG_SECURITY_NETWORK_XFRM
-LSM_HOOK(int, 0, xfrm_policy_alloc_security, struct xfrm_sec_ctx **ctxp,
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), xfrm_policy_alloc_security, struct xfrm_sec_ctx **ctxp,
struct xfrm_user_sec_ctx *sec_ctx, gfp_t gfp)
-LSM_HOOK(int, 0, xfrm_policy_clone_security, struct xfrm_sec_ctx *old_ctx,
- struct xfrm_sec_ctx **new_ctx)
-LSM_HOOK(void, LSM_RET_VOID, xfrm_policy_free_security,
- struct xfrm_sec_ctx *ctx)
-LSM_HOOK(int, 0, xfrm_policy_delete_security, struct xfrm_sec_ctx *ctx)
-LSM_HOOK(int, 0, xfrm_state_alloc, struct xfrm_state *x,
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), xfrm_policy_clone_security,
+ struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctx)
+LSM_HOOK(void, LSM_RET_VOID, xfrm_policy_free_security, struct xfrm_sec_ctx *ctx)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), xfrm_policy_delete_security, struct xfrm_sec_ctx *ctx)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), xfrm_state_alloc, struct xfrm_state *x,
struct xfrm_user_sec_ctx *sec_ctx)
-LSM_HOOK(int, 0, xfrm_state_alloc_acquire, struct xfrm_state *x,
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), xfrm_state_alloc_acquire, struct xfrm_state *x,
struct xfrm_sec_ctx *polsec, u32 secid)
LSM_HOOK(void, LSM_RET_VOID, xfrm_state_free_security, struct xfrm_state *x)
-LSM_HOOK(int, 0, xfrm_state_delete_security, struct xfrm_state *x)
-LSM_HOOK(int, 0, xfrm_policy_lookup, struct xfrm_sec_ctx *ctx, u32 fl_secid)
-LSM_HOOK(int, 1, xfrm_state_pol_flow_match, struct xfrm_state *x,
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), xfrm_state_delete_security, struct xfrm_state *x)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), xfrm_policy_lookup, struct xfrm_sec_ctx *ctx,
+ u32 fl_secid)
+LSM_HOOK(int, LSM_RET_INT(1, INT_MIN, INT_MAX), xfrm_state_pol_flow_match, struct xfrm_state *x,
struct xfrm_policy *xp, const struct flowi_common *flic)
-LSM_HOOK(int, 0, xfrm_decode_session, struct sk_buff *skb, u32 *secid,
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), xfrm_decode_session, struct sk_buff *skb, u32 *secid,
int ckall)
#endif /* CONFIG_SECURITY_NETWORK_XFRM */
/* key management security hooks */
#ifdef CONFIG_KEYS
-LSM_HOOK(int, 0, key_alloc, struct key *key, const struct cred *cred,
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), key_alloc, struct key *key, const struct cred *cred,
unsigned long flags)
LSM_HOOK(void, LSM_RET_VOID, key_free, struct key *key)
-LSM_HOOK(int, 0, key_permission, key_ref_t key_ref, const struct cred *cred,
- enum key_need_perm need_perm)
-LSM_HOOK(int, 0, key_getsecurity, struct key *key, char **buffer)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), key_permission, key_ref_t key_ref,
+ const struct cred *cred, enum key_need_perm need_perm)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, INT_MAX), key_getsecurity, struct key *key, char **buffer)
LSM_HOOK(void, LSM_RET_VOID, key_post_create_or_update, struct key *keyring,
- struct key *key, const void *payload, size_t payload_len,
- unsigned long flags, bool create)
+ struct key *key, const void *payload, size_t payload_len, unsigned long flags, bool create)
#endif /* CONFIG_KEYS */
#ifdef CONFIG_AUDIT
-LSM_HOOK(int, 0, audit_rule_init, u32 field, u32 op, char *rulestr,
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), audit_rule_init, u32 field, u32 op, char *rulestr,
void **lsmrule)
-LSM_HOOK(int, 0, audit_rule_known, struct audit_krule *krule)
-LSM_HOOK(int, 0, audit_rule_match, u32 secid, u32 field, u32 op, void *lsmrule)
+LSM_HOOK(int, LSM_RET_INT(0, 0, 1), audit_rule_known, struct audit_krule *krule)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 1), audit_rule_match, u32 secid, u32 field, u32 op,
+ void *lsmrule)
LSM_HOOK(void, LSM_RET_VOID, audit_rule_free, void *lsmrule)
#endif /* CONFIG_AUDIT */
#ifdef CONFIG_BPF_SYSCALL
-LSM_HOOK(int, 0, bpf, int cmd, union bpf_attr *attr, unsigned int size)
-LSM_HOOK(int, 0, bpf_map, struct bpf_map *map, fmode_t fmode)
-LSM_HOOK(int, 0, bpf_prog, struct bpf_prog *prog)
-LSM_HOOK(int, 0, bpf_map_create, struct bpf_map *map, union bpf_attr *attr,
- struct bpf_token *token)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), bpf, int cmd, union bpf_attr *attr, unsigned int size)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), bpf_map, struct bpf_map *map, fmode_t fmode)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), bpf_prog, struct bpf_prog *prog)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), bpf_map_create, struct bpf_map *map,
+ union bpf_attr *attr, struct bpf_token *token)
LSM_HOOK(void, LSM_RET_VOID, bpf_map_free, struct bpf_map *map)
-LSM_HOOK(int, 0, bpf_prog_load, struct bpf_prog *prog, union bpf_attr *attr,
- struct bpf_token *token)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), bpf_prog_load, struct bpf_prog *prog,
+ union bpf_attr *attr, struct bpf_token *token)
LSM_HOOK(void, LSM_RET_VOID, bpf_prog_free, struct bpf_prog *prog)
-LSM_HOOK(int, 0, bpf_token_create, struct bpf_token *token, union bpf_attr *attr,
- struct path *path)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), bpf_token_create, struct bpf_token *token,
+ union bpf_attr *attr, struct path *path)
LSM_HOOK(void, LSM_RET_VOID, bpf_token_free, struct bpf_token *token)
-LSM_HOOK(int, 0, bpf_token_cmd, const struct bpf_token *token, enum bpf_cmd cmd)
-LSM_HOOK(int, 0, bpf_token_capable, const struct bpf_token *token, int cap)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), bpf_token_cmd, const struct bpf_token *token,
+ enum bpf_cmd cmd)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), bpf_token_capable, const struct bpf_token *token,
+ int cap)
#endif /* CONFIG_BPF_SYSCALL */
-LSM_HOOK(int, 0, locked_down, enum lockdown_reason what)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), locked_down, enum lockdown_reason what)
#ifdef CONFIG_PERF_EVENTS
-LSM_HOOK(int, 0, perf_event_open, struct perf_event_attr *attr, int type)
-LSM_HOOK(int, 0, perf_event_alloc, struct perf_event *event)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), perf_event_open, struct perf_event_attr *attr,
+ int type)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), perf_event_alloc, struct perf_event *event)
LSM_HOOK(void, LSM_RET_VOID, perf_event_free, struct perf_event *event)
-LSM_HOOK(int, 0, perf_event_read, struct perf_event *event)
-LSM_HOOK(int, 0, perf_event_write, struct perf_event *event)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), perf_event_read, struct perf_event *event)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), perf_event_write, struct perf_event *event)
#endif /* CONFIG_PERF_EVENTS */
#ifdef CONFIG_IO_URING
-LSM_HOOK(int, 0, uring_override_creds, const struct cred *new)
-LSM_HOOK(int, 0, uring_sqpoll, void)
-LSM_HOOK(int, 0, uring_cmd, struct io_uring_cmd *ioucmd)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), uring_override_creds, const struct cred *new)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), uring_sqpoll, void)
+LSM_HOOK(int, LSM_RET_INT(0, -MAX_ERRNO, 0), uring_cmd, struct io_uring_cmd *ioucmd)
#endif /* CONFIG_IO_URING */
diff --git a/include/linux/lsm_hooks.h b/include/linux/lsm_hooks.h
index a2ade0ffe9e7..14690cad4fb9 100644
--- a/include/linux/lsm_hooks.h
+++ b/include/linux/lsm_hooks.h
@@ -98,12 +98,6 @@ static inline struct xattr *lsm_get_xattr_slot(struct xattr *xattrs,
return &xattrs[(*xattr_count)++];
}
-/*
- * LSM_RET_VOID is used as the default value in LSM_HOOK definitions for void
- * LSM hooks (in include/linux/lsm_hook_defs.h).
- */
-#define LSM_RET_VOID ((void) 0)
-
/*
* Initializing a security_hook_list structure takes
* up a lot of space in a source file. This macro takes
diff --git a/kernel/bpf/bpf_lsm.c b/kernel/bpf/bpf_lsm.c
index 68240c3c6e7d..ee9d1a795334 100644
--- a/kernel/bpf/bpf_lsm.c
+++ b/kernel/bpf/bpf_lsm.c
@@ -18,6 +18,14 @@
#include <linux/ima.h>
#include <linux/bpf-cgroup.h>
+/*
+ * LSM_RET_VOID is used as the default value in LSM_HOOK definitions for void
+ * LSM hooks (in include/linux/lsm_hook_defs.h).
+ */
+#define LSM_RET_VOID ((void) 0)
+
+#define LSM_RET_INT(defval, ...) defval
+
/* For every LSM hook that allows attachment of BPF programs, declare a nop
* function where a BPF program can be attached.
*/
@@ -29,6 +37,8 @@ noinline RET bpf_lsm_##NAME(__VA_ARGS__) \
#include <linux/lsm_hook_defs.h>
#undef LSM_HOOK
+#undef LSM_RET_INT
+#undef LSM_RET_VOID
#define LSM_HOOK(RET, DEFAULT, NAME, ...) BTF_ID(func, bpf_lsm_##NAME)
BTF_SET_START(bpf_lsm_hooks)
diff --git a/security/security.c b/security/security.c
index 7e118858b545..665c531497c4 100644
--- a/security/security.c
+++ b/security/security.c
@@ -834,6 +834,7 @@ int lsm_fill_user_ctx(struct lsm_ctx __user *uctx, u32 *uctx_len,
* The macros below define static constants for the default value of each
* LSM hook.
*/
+#define LSM_RET_INT(defval, ...) defval
#define LSM_RET_DEFAULT(NAME) (NAME##_default)
#define DECLARE_LSM_RET_DEFAULT_void(DEFAULT, NAME)
#define DECLARE_LSM_RET_DEFAULT_int(DEFAULT, NAME) \
--
2.30.2
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