path: root/security/keys/internal.h
diff options
authorLinus Torvalds <torvalds@linux-foundation.org>2019-07-08 19:02:11 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2019-07-08 19:02:11 -0700
commitd44a62742decca5ae5688a562584dc0fe9fc63f6 (patch)
tree4a9bb7e50652644e48e4d45fd8dcd3abac4cec41 /security/keys/internal.h
parentMerge tag 'selinux-pr-20190702' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux (diff)
parentkeys: Add capability-checking keyctl function (diff)
Merge tag 'keys-misc-20190619' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs
Pull misc keyring updates from David Howells: "These are some miscellaneous keyrings fixes and improvements: - Fix a bunch of warnings from sparse, including missing RCU bits and kdoc-function argument mismatches - Implement a keyctl to allow a key to be moved from one keyring to another, with the option of prohibiting key replacement in the destination keyring. - Grant Link permission to possessors of request_key_auth tokens so that upcall servicing daemons can more easily arrange things such that only the necessary auth key is passed to the actual service program, and not all the auth keys a daemon might possesss. - Improvement in lookup_user_key(). - Implement a keyctl to allow keyrings subsystem capabilities to be queried. The keyutils next branch has commits to make available, document and test the move-key and capabilities code: https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/keyutils.git/log They're currently on the 'next' branch" * tag 'keys-misc-20190619' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs: keys: Add capability-checking keyctl function keys: Reuse keyring_index_key::desc_len in lookup_user_key() keys: Grant Link permission to possessers of request_key auth keys keys: Add a keyctl to move a key between keyrings keys: Hoist locking out of __key_link_begin() keys: Break bits out of key_unlink() keys: Change keyring_serialise_link_sem to a mutex keys: sparse: Fix kdoc mismatches keys: sparse: Fix incorrect RCU accesses keys: sparse: Fix key_fs[ug]id_changed()
Diffstat (limited to 'security/keys/internal.h')
1 files changed, 7 insertions, 0 deletions
diff --git a/security/keys/internal.h b/security/keys/internal.h
index d59bc25a9249..0f48b53754b3 100644
--- a/security/keys/internal.h
+++ b/security/keys/internal.h
@@ -89,6 +89,10 @@ extern wait_queue_head_t request_key_conswq;
extern struct key_type *key_type_lookup(const char *type);
extern void key_type_put(struct key_type *ktype);
+extern int __key_link_lock(struct key *keyring,
+ const struct keyring_index_key *index_key);
+extern int __key_move_lock(struct key *l_keyring, struct key *u_keyring,
+ const struct keyring_index_key *index_key);
extern int __key_link_begin(struct key *keyring,
const struct keyring_index_key *index_key,
struct assoc_array_edit **_edit);
@@ -211,6 +215,7 @@ extern long keyctl_update_key(key_serial_t, const void __user *, size_t);
extern long keyctl_revoke_key(key_serial_t);
extern long keyctl_keyring_clear(key_serial_t);
extern long keyctl_keyring_link(key_serial_t, key_serial_t);
+extern long keyctl_keyring_move(key_serial_t, key_serial_t, key_serial_t, unsigned int);
extern long keyctl_keyring_unlink(key_serial_t, key_serial_t);
extern long keyctl_describe_key(key_serial_t, char __user *, size_t);
extern long keyctl_keyring_search(key_serial_t, const char __user *,
@@ -320,6 +325,8 @@ static inline long keyctl_pkey_e_d_s(int op,
+extern long keyctl_capabilities(unsigned char __user *_buffer, size_t buflen);
* Debugging key validation