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path: root/Documentation/security/Smack.txt
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2013-03-19Smack: add support for modification of existing rulesRafal Krypa
Rule modifications are enabled via /smack/change-rule. Format is as follows: "Subject Object rwaxt rwaxt" First two strings are subject and object labels up to 255 characters. Third string contains permissions to enable. Fourth string contains permissions to disable. All unmentioned permissions will be left unchanged. If no rule previously existed, it will be created. Targeted for git://git.gitorious.org/smack-next/kernel.git Signed-off-by: Rafal Krypa <r.krypa@samsung.com>
2012-09-26Documentation: Update git repository URL for Smack userland toolsDaniel Wagner
The userland git repository has been moved to a new place. Signed-off-by: Daniel Wagner <daniel.wagner@bmw-carit.de> Cc: Casey Schaufler <casey@schaufler-ca.com> Cc: Rob Landley <rob@landley.net> Cc: linux-security-module@vger.kernel.org Cc: lkml@vger.kernel.org
2012-09-18Smack: implement revoking all rules for a subject labelRafal Krypa
Add /smack/revoke-subject special file. Writing a SMACK label to this file will set the access to '-' for all access rules with that subject label. Targeted for git://git.gitorious.org/smack-next/kernel.git Signed-off-by: Rafal Krypa <r.krypa@samsung.com>
2012-05-14Smack: allow for significantly longer Smack labels v4Casey Schaufler
V4 updated to current linux-security#next Targeted for git://gitorious.org/smack-next/kernel.git Modern application runtime environments like to use naming schemes that are structured and generated without human intervention. Even though the Smack limit of 23 characters for a label name is perfectly rational for human use there have been complaints that the limit is a problem in environments where names are composed from a set or sources, including vendor, author, distribution channel and application name. Names like softwarehouse-pgwodehouse-coolappstore-mellowmuskrats are becoming harder to avoid. This patch introduces long label support in Smack. Labels are now limited to 255 characters instead of the old 23. The primary reason for limiting the labels to 23 characters was so they could be directly contained in CIPSO category sets. This is still done were possible, but for labels that are too large a mapping is required. This is perfectly safe for communication that stays "on the box" and doesn't require much coordination between boxes beyond what would have been required to keep label names consistent. The bulk of this patch is in smackfs, adding and updating administrative interfaces. Because existing APIs can't be changed new ones that do much the same things as old ones have been introduced. The Smack specific CIPSO data representation has been removed and replaced with the data format used by netlabel. The CIPSO header is now computed when a label is imported rather than on use. This results in improved IP performance. The smack label is now allocated separately from the containing structure, allowing for larger strings. Four new /smack interfaces have been introduced as four of the old interfaces strictly required labels be specified in fixed length arrays. The access interface is supplemented with the check interface: access "Subject Object rwxat" access2 "Subject Object rwaxt" The load interface is supplemented with the rules interface: load "Subject Object rwxat" load2 "Subject Object rwaxt" The load-self interface is supplemented with the self-rules interface: load-self "Subject Object rwxat" load-self2 "Subject Object rwaxt" The cipso interface is supplemented with the wire interface: cipso "Subject lvl cnt c1 c2 ..." cipso2 "Subject lvl cnt c1 c2 ..." The old interfaces are maintained for compatibility. Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
2012-03-07Documentation: Fix multiple typo in DocumentationMasanari Iida
Signed-off-by: Masanari Iida <standby24x7@gmail.com> Acked-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-05-19Create Documentation/security/,Randy Dunlap
move LSM-, credentials-, and keys-related files from Documentation/ to Documentation/security/, add Documentation/security/00-INDEX, and update all occurrences of Documentation/<moved_file> to Documentation/security/<moved_file>.