LXR linux/security/Kconfig

   1#
   2# Security configuration
   3#
   4
   5menu "Security options"
   6
   7config KEYS
   8        bool "Enable access key retention support"
   9        help
  10          This option provides support for retaining authentication tokens and
  11          access keys in the kernel.
  12
  13          It also includes provision of methods by which such keys might be
  14          associated with a process so that network filesystems, encryption
  15          support and the like can find them.
  16
  17          Furthermore, a special type of key is available that acts as keyring:
  18          a searchable sequence of keys. Each process is equipped with access
  19          to five standard keyrings: UID-specific, GID-specific, session,
  20          process and thread.
  21
  22          If you are unsure as to whether this is required, answer N.
  23
  24config KEYS_DEBUG_PROC_KEYS
  25        bool "Enable the /proc/keys file by which keys may be viewed"
  26        depends on KEYS
  27        help
  28          This option turns on support for the /proc/keys file - through which
  29          can be listed all the keys on the system that are viewable by the
  30          reading process.
  31
  32          The only keys included in the list are those that grant View
  33          permission to the reading process whether or not it possesses them.
  34          Note that LSM security checks are still performed, and may further
  35          filter out keys that the current process is not authorised to view.
  36
  37          Only key attributes are listed here; key payloads are not included in
  38          the resulting table.
  39
  40          If you are unsure as to whether this is required, answer N.
  41
  42config SECURITY
  43        bool "Enable different security models"
  44        depends on SYSFS
  45        help
  46          This allows you to choose different security modules to be
  47          configured into your kernel.
  48
  49          If this option is not selected, the default Linux security
  50          model will be used.
  51
  52          If you are unsure how to answer this question, answer N.
  53
  54config SECURITY_NETWORK
  55        bool "Socket and Networking Security Hooks"
  56        depends on SECURITY
  57        help
  58          This enables the socket and networking security hooks.
  59          If enabled, a security module can use these hooks to
  60          implement socket and networking access controls.
  61          If you are unsure how to answer this question, answer N.
  62
  63config SECURITY_NETWORK_XFRM
  64        bool "XFRM (IPSec) Networking Security Hooks"
  65        depends on XFRM && SECURITY_NETWORK
  66        help
  67          This enables the XFRM (IPSec) networking security hooks.
  68          If enabled, a security module can use these hooks to
  69          implement per-packet access controls based on labels
  70          derived from IPSec policy.  Non-IPSec communications are
  71          designated as unlabelled, and only sockets authorized
  72          to communicate unlabelled data can send without using
  73          IPSec.
  74          If you are unsure how to answer this question, answer N.
  75
  76config SECURITY_FILE_CAPABILITIES
  77        bool "File POSIX Capabilities"
  78        default n
  79        help
  80          This enables filesystem capabilities, allowing you to give
  81          binaries a subset of root's powers without using setuid 0.
  82
  83          If in doubt, answer N.
  84
  85config SECURITY_ROOTPLUG
  86        bool "Root Plug Support"
  87        depends on USB=y && SECURITY
  88        help
  89          This is a sample LSM module that should only be used as such.
  90          It prevents any programs running with egid == 0 if a specific
  91          USB device is not present in the system.
  92
  93          See <http://www.linuxjournal.com/article.php?sid=6279> for
  94          more information about this module.
  95
  96          If you are unsure how to answer this question, answer N.
  97
  98source security/selinux/Kconfig
  99source security/smack/Kconfig
 100
 101endmenu
 102
 103