调用者| 名称 | 描述 |
|---|
| SYSCALL_DEFINE4 | Search the process keyrings and keyring trees linked from those for a* matching key. Keyrings must have appropriate Search permission to be* searched.* If a key is found, it will be attached to the destination keyring if there's |
| keyctl_get_keyring_ID | Get the ID of the specified process keyring.* The requested keyring must have search permission to be found.* If successful, the ID of the requested keyring will be returned. |
| keyctl_update_key | Update a key's data payload from the given data.* The key must grant the caller Write permission and the key type must support* updating for this to work. A negative key can be positively instantiated* with this call.* If successful, 0 will be returned |
| keyctl_revoke_key | Revoke a key.* The key must be grant the caller Write or Setattr permission for this to* work. The key type should give up its quota claim when revoked. The key* and any links to the key will be automatically garbage collected after a |
| keyctl_invalidate_key | Invalidate a key.* The key must be grant the caller Invalidate permission for this to work.* The key and any links to the key will be automatically garbage collected* immediately.* Keys with KEY_FLAG_KEEP set should not be invalidated. |
| keyctl_keyring_clear | Clear the specified keyring, creating an empty process keyring if one of the* special keyring IDs is used.* The keyring must grant the caller Write permission and not have* KEY_FLAG_KEEP set for this to work. If successful, 0 will be returned. |
| keyctl_keyring_link | Create a link from a keyring to a key if there's no matching key in the* keyring, otherwise replace the link to the matching key with a link to the* new key.* The key must grant the caller Link permission and the the keyring must grant |
| keyctl_keyring_unlink | Unlink a key from a keyring.* The keyring must grant the caller Write permission for this to work; the key* itself need not grant the caller anything. If the last link to a key is* removed then that key will be scheduled for destruction. |
| keyctl_keyring_move | Move a link to a key from one keyring to another, displacing any matching* key from the destination keyring.* The key must grant the caller Link permission and both keyrings must grant* the caller Write permission |
| keyctl_describe_key | Return a description of a key to userspace |
| keyctl_keyring_search | Search the specified keyring and any keyrings it links to for a matching* key |
| keyctl_read_key | Read a key's payload |
| keyctl_chown_key | Change the ownership of a key* The key must grant the caller Setattr permission for this to work, though* the key need not be fully instantiated yet. For the UID to be changed, or* for the GID to be changed to a group the caller is not a member of, the |
| keyctl_setperm_key | Change the permission mask on a key.* The key must grant the caller Setattr permission for this to work, though* the key need not be fully instantiated yet. If the caller does not have |
| get_instantiation_keyring | Get the destination keyring for instantiation and check that the caller has* Write permission on it. |
| keyctl_set_timeout | Set or clear the timeout on a key.* Either the key must grant the caller Setattr permission or else the caller* must hold an instantiation authorisation token for the key.* The timeout is either 0 to clear the timeout, or a number of seconds from |
| keyctl_get_security | Get a key's the LSM security label.* The key must grant the caller View permission for this to work.* If there's a buffer, then up to buflen bytes of data will be placed into it.* If successful, the amount of information available will be returned, |
| keyctl_session_to_parent | Attempt to install the calling process's session keyring on the process's* parent process.* The keyring must exist and must grant the caller LINK permission, and the* parent process must be single-threaded and must have the same effective |
| keyctl_restrict_keyring | Apply a restriction to a given keyring.* The caller must have Setattr permission to change keyring restrictions.* The requested type name may be a NULL pointer to reject all attempts* to link to the keyring. In this case, _restriction must also be NULL. |
| keyctl_get_persistent | Get the persistent keyring for a specific UID and link it to the nominated* keyring. |
| dh_data_from_key | |
| keyctl_pkey_params_get | Interpret parameters. Callers must always call the free function* on params, even if an error is returned. |
| SYSCALL_DEFINE5 | Extract the description of a new key from userspace and either add it as a* new key to the specified keyring or update a matching key in that keyring.* If the description is NULL or an empty string, the key type is asked to* generate one from the payload. |