diff options
Diffstat (limited to 'Documentation/ABI')
| -rw-r--r-- | Documentation/ABI/testing/ima_policy | 25 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-driver-ppi | 70 |
2 files changed, 91 insertions, 4 deletions
diff --git a/Documentation/ABI/testing/ima_policy b/Documentation/ABI/testing/ima_policy index 6cd6daefaae..98694661354 100644 --- a/Documentation/ABI/testing/ima_policy +++ b/Documentation/ABI/testing/ima_policy @@ -12,11 +12,14 @@ Description: then closing the file. The new policy takes effect after the file ima/policy is closed. + IMA appraisal, if configured, uses these file measurements + for local measurement appraisal. + rule format: action [condition ...] - action: measure | dont_measure + action: measure | dont_measure | appraise | dont_appraise | audit condition:= base | lsm - base: [[func=] [mask=] [fsmagic=] [uid=]] + base: [[func=] [mask=] [fsmagic=] [uid=] [fowner]] lsm: [[subj_user=] [subj_role=] [subj_type=] [obj_user=] [obj_role=] [obj_type=]] @@ -24,36 +27,50 @@ Description: mask:= [MAY_READ] [MAY_WRITE] [MAY_APPEND] [MAY_EXEC] fsmagic:= hex value uid:= decimal value + fowner:=decimal value lsm: are LSM specific default policy: # PROC_SUPER_MAGIC dont_measure fsmagic=0x9fa0 + dont_appraise fsmagic=0x9fa0 # SYSFS_MAGIC dont_measure fsmagic=0x62656572 + dont_appraise fsmagic=0x62656572 # DEBUGFS_MAGIC dont_measure fsmagic=0x64626720 + dont_appraise fsmagic=0x64626720 # TMPFS_MAGIC dont_measure fsmagic=0x01021994 + dont_appraise fsmagic=0x01021994 + # RAMFS_MAGIC + dont_measure fsmagic=0x858458f6 + dont_appraise fsmagic=0x858458f6 # SECURITYFS_MAGIC dont_measure fsmagic=0x73636673 + dont_appraise fsmagic=0x73636673 measure func=BPRM_CHECK measure func=FILE_MMAP mask=MAY_EXEC measure func=FILE_CHECK mask=MAY_READ uid=0 + appraise fowner=0 The default policy measures all executables in bprm_check, all files mmapped executable in file_mmap, and all files - open for read by root in do_filp_open. + open for read by root in do_filp_open. The default appraisal + policy appraises all files owned by root. Examples of LSM specific definitions: SELinux: # SELINUX_MAGIC - dont_measure fsmagic=0xF97CFF8C + dont_measure fsmagic=0xf97cff8c + dont_appraise fsmagic=0xf97cff8c dont_measure obj_type=var_log_t + dont_appraise obj_type=var_log_t dont_measure obj_type=auditd_log_t + dont_appraise obj_type=auditd_log_t measure subj_user=system_u func=FILE_CHECK mask=MAY_READ measure subj_role=system_r func=FILE_CHECK mask=MAY_READ diff --git a/Documentation/ABI/testing/sysfs-driver-ppi b/Documentation/ABI/testing/sysfs-driver-ppi new file mode 100644 index 00000000000..97a003ee058 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-driver-ppi @@ -0,0 +1,70 @@ +What: /sys/devices/pnp0/<bus-num>/ppi/ +Date: August 2012 +Kernel Version: 3.6 +Contact: xiaoyan.zhang@intel.com +Description: + This folder includes the attributes related with PPI (Physical + Presence Interface). Only if TPM is supported by BIOS, this + folder makes sence. The folder path can be got by command + 'find /sys/ -name 'pcrs''. For the detail information of PPI, + please refer to the PPI specification from + http://www.trustedcomputinggroup.org/ + +What: /sys/devices/pnp0/<bus-num>/ppi/version +Date: August 2012 +Contact: xiaoyan.zhang@intel.com +Description: + This attribute shows the version of the PPI supported by the + platform. + This file is readonly. + +What: /sys/devices/pnp0/<bus-num>/ppi/request +Date: August 2012 +Contact: xiaoyan.zhang@intel.com +Description: + This attribute shows the request for an operation to be + executed in the pre-OS environment. It is the only input from + the OS to the pre-OS environment. The request should be an + integer value range from 1 to 160, and 0 means no request. + This file can be read and written. + +What: /sys/devices/pnp0/00:<bus-num>/ppi/response +Date: August 2012 +Contact: xiaoyan.zhang@intel.com +Description: + This attribute shows the response to the most recent operation + request it acted upon. The format is "<request> <response num> + : <response description>". + This file is readonly. + +What: /sys/devices/pnp0/<bus-num>/ppi/transition_action +Date: August 2012 +Contact: xiaoyan.zhang@intel.com +Description: + This attribute shows the platform-specific action that should + take place in order to transition to the BIOS for execution of + a requested operation. The format is "<action num>: <action + description>". + This file is readonly. + +What: /sys/devices/pnp0/<bus-num>/ppi/tcg_operations +Date: August 2012 +Contact: xiaoyan.zhang@intel.com +Description: + This attribute shows whether it is allowed to request an + operation to be executed in the pre-OS environment by the BIOS + for the requests defined by TCG, i.e. requests from 1 to 22. + The format is "<request> <status num>: <status description>". + This attribute is only supported by PPI version 1.2+. + This file is readonly. + +What: /sys/devices/pnp0/<bus-num>/ppi/vs_operations +Date: August 2012 +Contact: xiaoyan.zhang@intel.com +Description: + This attribute shows whether it is allowed to request an + operation to be executed in the pre-OS environment by the BIOS + for the verdor specific requests, i.e. requests from 128 to + 255. The format is same with tcg_operations. This attribute + is also only supported by PPI version 1.2+. + This file is readonly. |