diff options
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/admin-guide/LSM/index.rst (renamed from Documentation/security/LSM.txt) | 22 | ||||
| -rw-r--r-- | Documentation/admin-guide/index.rst | 1 | ||||
| -rw-r--r-- | Documentation/security/00-INDEX | 2 | ||||
| -rw-r--r-- | Documentation/security/LSM.rst | 14 | ||||
| -rw-r--r-- | Documentation/security/index.rst | 1 |
5 files changed, 22 insertions, 18 deletions
diff --git a/Documentation/security/LSM.txt b/Documentation/admin-guide/LSM/index.rst index c2683f28ed36..7e892b9b58aa 100644 --- a/Documentation/security/LSM.txt +++ b/Documentation/admin-guide/LSM/index.rst @@ -1,12 +1,13 @@ -Linux Security Module framework -------------------------------- +=========================== +Linux Security Module Usage +=========================== The Linux Security Module (LSM) framework provides a mechanism for various security checks to be hooked by new kernel extensions. The name "module" is a bit of a misnomer since these extensions are not actually loadable kernel modules. Instead, they are selectable at build-time via CONFIG_DEFAULT_SECURITY and can be overridden at boot-time via the -"security=..." kernel command line argument, in the case where multiple +``"security=..."`` kernel command line argument, in the case where multiple LSMs were built into a given kernel. The primary users of the LSM interface are Mandatory Access Control @@ -19,23 +20,12 @@ in the core functionality of Linux itself. Without a specific LSM built into the kernel, the default LSM will be the Linux capabilities system. Most LSMs choose to extend the capabilities system, building their checks on top of the defined capability hooks. -For more details on capabilities, see capabilities(7) in the Linux +For more details on capabilities, see ``capabilities(7)`` in the Linux man-pages project. A list of the active security modules can be found by reading -/sys/kernel/security/lsm. This is a comma separated list, and +``/sys/kernel/security/lsm``. This is a comma separated list, and will always include the capability module. The list reflects the order in which checks are made. The capability module will always be first, followed by any "minor" modules (e.g. Yama) and then the one "major" module (e.g. SELinux) if there is one configured. - -Based on https://lkml.org/lkml/2007/10/26/215, -a new LSM is accepted into the kernel when its intent (a description of -what it tries to protect against and in what cases one would expect to -use it) has been appropriately documented in Documentation/security/. -This allows an LSM's code to be easily compared to its goals, and so -that end users and distros can make a more informed decision about which -LSMs suit their requirements. - -For extensive documentation on the available LSM hook interfaces, please -see include/linux/security.h. diff --git a/Documentation/admin-guide/index.rst b/Documentation/admin-guide/index.rst index 8c60a8a32a1a..e14c374aaf60 100644 --- a/Documentation/admin-guide/index.rst +++ b/Documentation/admin-guide/index.rst @@ -61,6 +61,7 @@ configure specific aspects of kernel behavior to your liking. java ras pm/index + LSM/index .. only:: subproject and html diff --git a/Documentation/security/00-INDEX b/Documentation/security/00-INDEX index c4df62a9ae5b..190a023a7e72 100644 --- a/Documentation/security/00-INDEX +++ b/Documentation/security/00-INDEX @@ -1,7 +1,5 @@ 00-INDEX - this file. -LSM.txt - - description of the Linux Security Module framework. SELinux.txt - how to get started with the SELinux security enhancement. Smack.txt diff --git a/Documentation/security/LSM.rst b/Documentation/security/LSM.rst new file mode 100644 index 000000000000..d75778b0fa10 --- /dev/null +++ b/Documentation/security/LSM.rst @@ -0,0 +1,14 @@ +================================= +Linux Security Module Development +================================= + +Based on https://lkml.org/lkml/2007/10/26/215, +a new LSM is accepted into the kernel when its intent (a description of +what it tries to protect against and in what cases one would expect to +use it) has been appropriately documented in ``Documentation/security/LSM``. +This allows an LSM's code to be easily compared to its goals, and so +that end users and distros can make a more informed decision about which +LSMs suit their requirements. + +For extensive documentation on the available LSM hook interfaces, please +see ``include/linux/lsm_hooks.h``. diff --git a/Documentation/security/index.rst b/Documentation/security/index.rst index 4212d7ac58b6..94ba1cfc01c5 100644 --- a/Documentation/security/index.rst +++ b/Documentation/security/index.rst @@ -7,5 +7,6 @@ Security Documentation credentials IMA-templates + LSM self-protection tpm/index |
