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| author |   Mat Martineau <mathew.j.martineau@linux.intel.com> | 2017-03-01 16:44:09 -0800 |
|---|---|---|
| committer | Mat Martineau <mathew.j.martineau@linux.intel.com> | 2017-04-04 14:10:12 -0700 |
| commit | 6563c91fd645556c7801748f15bc727c77fcd311 (patch) | |
| tree | 714a6be7606cb6646c7b182bae136ef26bc9692e /include/uapi/linux/keyctl.h | |
| parent | KEYS: Consistent ordering for __key_link_begin and restrict check (diff) | |
| download | linux-dev-6563c91fd645556c7801748f15bc727c77fcd311.tar.xz linux-dev-6563c91fd645556c7801748f15bc727c77fcd311.zip | |
KEYS: Add KEYCTL_RESTRICT_KEYRING
Keyrings recently gained restrict_link capabilities that allow
individual keys to be validated prior to linking. This functionality
was only available using internal kernel APIs.
With the KEYCTL_RESTRICT_KEYRING command existing keyrings can be
configured to check the content of keys before they are linked, and
then allow or disallow linkage of that key to the keyring.
To restrict a keyring, call:
keyctl(KEYCTL_RESTRICT_KEYRING, key_serial_t keyring, const char *type,
const char *restriction)
where 'type' is the name of a registered key type and 'restriction' is a
string describing how key linkage is to be restricted. The restriction
option syntax is specific to each key type.
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Diffstat (limited to 'include/uapi/linux/keyctl.h')
| -rw-r--r-- | include/uapi/linux/keyctl.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/uapi/linux/keyctl.h b/include/uapi/linux/keyctl.h index 86eddd6241f3..ff79c44e49a3 100644 --- a/include/uapi/linux/keyctl.h +++ b/include/uapi/linux/keyctl.h @@ -60,6 +60,7 @@ #define KEYCTL_INVALIDATE 21 /* invalidate a key */ #define KEYCTL_GET_PERSISTENT 22 /* get a user's persistent keyring */ #define KEYCTL_DH_COMPUTE 23 /* Compute Diffie-Hellman values */ +#define KEYCTL_RESTRICT_KEYRING 29 /* Restrict keys allowed to link to a keyring */ /* keyctl structures */ struct keyctl_dh_params { |