Show information about keyrings (keyringshow)
=============================================

The keyringshow command displays information about keyrings::

    crash> keyringshow -h
    usage: keyringshow [-h] (-k KEYRING | -p PID | -a)

    print information about keyrings

    optional arguments:
      -h, --help            show this help message and exit
      -k KEYRING, --keyring KEYRING
                            print a single keyring
      -p PID, --pid PID     print keyrings for task with pid PID
      -a, --all-tasks       print keyrings for all tasks

* `Print a single keyring (-k, --keyring)`_
* `Print keyrings for a specific task (-p, --pid)`_
* `Print keyrings for all tasks (-a, --all-tasks)`_


Print a single keyring (-k, --keyring)
--------------------------------------

The "-k" option prints information about a single keyring. The argument is a pointer
to a keyring structure::

    crash> keyringshow -k 0xff25c6fa776a1700
     <struct key 0xff25c6fa776a1700>
         usage: 23
         serial: 72334391
         expiry 0
         uid: 0
         gid: 0
         perm: 0x3f030000
         type: 0xffffffffb0f19280 (key_type_keyring)
         flags: 0x4 (KEY_FLAG_IN_QUOTA)
         description: _ses
         keys: <struct assoc_array 0xff25c6fa776a17b0>
     <struct key 0xff25c6fa776a0200>
         usage: 1
         serial: 805861861
         expiry 0
         uid: 0
         gid: 0
         perm: 0xb0b0000
         type: 0xffffffffb0f19ac0 (key_type_user)
         flags: 0x4 (KEY_FLAG_IN_QUOTA)
         description: invocation_id


Print keyrings for a specific task (-p, --pid)
----------------------------------------------

The "-p" options prints the keyrings for a specific a task. The argument is the
PID of the task to be displayed::

    crash> keyringshow -p 1637334
    PID=1637334 <struct task_struct 0xff25c6baf5465ac0> CMD=sadc
      cred: 0xff25c6fa7d4543c0
      Session Keyring
      ---------------
         <struct key 0xff25c6fa776a1700>
             usage: 23
             serial: 72334391
             expiry 0
             uid: 0
             gid: 0
             perm: 0x3f030000
             type: 0xffffffffb0f19280 (key_type_keyring)
             flags: 0x4 (KEY_FLAG_IN_QUOTA)
             description: _ses
             keys: <struct assoc_array 0xff25c6fa776a17b0>
         <struct key 0xff25c6fa776a0200>
             usage: 1
             serial: 805861861
             expiry 0
             uid: 0
             gid: 0
             perm: 0xb0b0000
             type: 0xffffffffb0f19ac0 (key_type_user)
             flags: 0x4 (KEY_FLAG_IN_QUOTA)
             description: invocation_id

Print keyrings for all tasks (-a, --all-tasks)
----------------------------------------------

The "-a" option prints the keyrings for all tasks in the system.