From: Randy Dunlap <rdunlap@infradead.org> To: Casey Schaufler <casey@schaufler-ca.com>, casey.schaufler@intel.com, jmorris@namei.org, linux-security-module@vger.kernel.org, selinux@vger.kernel.org Cc: linux-audit@redhat.com, keescook@chromium.org, john.johansen@canonical.com, penguin-kernel@i-love.sakura.ne.jp, paul@paul-moore.com, sds@tycho.nsa.gov, linux-api@vger.kernel.org Subject: Re: [PATCH v20 22/23] LSM: Add /proc attr entry for full LSM context Date: Wed, 26 Aug 2020 11:02:46 -0700 [thread overview] Message-ID: <2e16e5dc-d040-8e8d-0fda-eb631b4b72e1@infradead.org> (raw) In-Reply-To: <20200826145247.10029-23-casey@schaufler-ca.com> Hi, On 8/26/20 7:52 AM, Casey Schaufler wrote: > diff --git a/Documentation/security/lsm.rst b/Documentation/security/lsm.rst > index 6a2a2e973080..fd4c87358d54 100644 > --- a/Documentation/security/lsm.rst > +++ b/Documentation/security/lsm.rst > @@ -129,3 +129,31 @@ to identify it as the first security module to be registered. > The capabilities security module does not use the general security > blobs, unlike other modules. The reasons are historical and are > based on overhead, complexity and performance concerns. > + > +LSM External Interfaces > +======================= > + > +The LSM infrastructure does not generally provide external interfaces. > +The individual security modules provide what external interfaces they > +require. > + > +The file ``/sys/kernel/security/lsm`` provides a comma > +separated list of the active security modules. > + > +The file ``/proc/pid/attr/display`` contains the name of the security > +module for which the ``/proc/pid/attr/current`` interface will > +apply. This interface can be written to. > + > +The infrastructure does provide an interface for the special > +case where multiple security modules provide a process context. > +This is provided in compound context format. > + > +- `lsm\0value\0lsm\0value\0` > + > +The `lsm` and `value` fields are nul terminated bytestrings. Preferably NUL-terminated > +Each field may contain whitespace or non-printable characters. > +The nul bytes are included in the size of a compound context. NUL > +The context ``Bell\0Secret\0Biba\0Loose\0`` has a size of 23. > + > +The file ``/proc/pid/attr/context`` provides the security > +context of the identified process. thanks. -- ~Randy Reported-by: Randy Dunlap <rdunlap@infradead.org>
WARNING: multiple messages have this Message-ID (diff)
From: Randy Dunlap <rdunlap@infradead.org> To: Casey Schaufler <casey@schaufler-ca.com>, casey.schaufler@intel.com, jmorris@namei.org, linux-security-module@vger.kernel.org, selinux@vger.kernel.org Cc: john.johansen@canonical.com, linux-api@vger.kernel.org, linux-audit@redhat.com, sds@tycho.nsa.gov Subject: Re: [PATCH v20 22/23] LSM: Add /proc attr entry for full LSM context Date: Wed, 26 Aug 2020 11:02:46 -0700 [thread overview] Message-ID: <2e16e5dc-d040-8e8d-0fda-eb631b4b72e1@infradead.org> (raw) In-Reply-To: <20200826145247.10029-23-casey@schaufler-ca.com> Hi, On 8/26/20 7:52 AM, Casey Schaufler wrote: > diff --git a/Documentation/security/lsm.rst b/Documentation/security/lsm.rst > index 6a2a2e973080..fd4c87358d54 100644 > --- a/Documentation/security/lsm.rst > +++ b/Documentation/security/lsm.rst > @@ -129,3 +129,31 @@ to identify it as the first security module to be registered. > The capabilities security module does not use the general security > blobs, unlike other modules. The reasons are historical and are > based on overhead, complexity and performance concerns. > + > +LSM External Interfaces > +======================= > + > +The LSM infrastructure does not generally provide external interfaces. > +The individual security modules provide what external interfaces they > +require. > + > +The file ``/sys/kernel/security/lsm`` provides a comma > +separated list of the active security modules. > + > +The file ``/proc/pid/attr/display`` contains the name of the security > +module for which the ``/proc/pid/attr/current`` interface will > +apply. This interface can be written to. > + > +The infrastructure does provide an interface for the special > +case where multiple security modules provide a process context. > +This is provided in compound context format. > + > +- `lsm\0value\0lsm\0value\0` > + > +The `lsm` and `value` fields are nul terminated bytestrings. Preferably NUL-terminated > +Each field may contain whitespace or non-printable characters. > +The nul bytes are included in the size of a compound context. NUL > +The context ``Bell\0Secret\0Biba\0Loose\0`` has a size of 23. > + > +The file ``/proc/pid/attr/context`` provides the security > +context of the identified process. thanks. -- ~Randy Reported-by: Randy Dunlap <rdunlap@infradead.org> -- Linux-audit mailing list Linux-audit@redhat.com https://www.redhat.com/mailman/listinfo/linux-audit
next prev parent reply other threads:[~2020-08-26 18:03 UTC|newest] Thread overview: 126+ messages / expand[flat|nested] mbox.gz Atom feed top [not found] <20200826145247.10029-1-casey.ref@schaufler-ca.com> 2020-08-26 14:52 ` [PATCH v20 00/23] LSM: Module stacking for AppArmor Casey Schaufler 2020-08-26 14:52 ` Casey Schaufler 2020-08-26 14:52 ` [PATCH v20 01/23] LSM: Infrastructure management of the sock security Casey Schaufler 2020-08-26 14:52 ` Casey Schaufler 2020-08-26 14:52 ` [PATCH v20 02/23] LSM: Create and manage the lsmblob data structure Casey Schaufler 2020-08-26 14:52 ` Casey Schaufler 2020-09-04 21:50 ` Paul Moore 2020-09-04 21:50 ` Paul Moore 2020-08-26 14:52 ` [PATCH v20 03/23] LSM: Use lsmblob in security_audit_rule_match Casey Schaufler 2020-08-26 14:52 ` Casey Schaufler 2020-09-04 18:53 ` Paul Moore 2020-09-04 18:53 ` Paul Moore 2020-08-26 14:52 ` [PATCH v20 04/23] LSM: Use lsmblob in security_kernel_act_as Casey Schaufler 2020-08-26 14:52 ` Casey Schaufler 2020-09-04 19:46 ` Paul Moore 2020-09-04 19:46 ` Paul Moore 2020-08-26 14:52 ` [PATCH v20 05/23] net: Prepare UDS for security module stacking Casey Schaufler 2020-08-26 14:52 ` Casey Schaufler 2020-09-03 16:28 ` James Morris 2020-09-03 16:28 ` James Morris 2020-09-04 20:08 ` Paul Moore 2020-09-04 20:08 ` Paul Moore 2020-09-04 21:35 ` Casey Schaufler 2020-09-04 21:35 ` Casey Schaufler 2020-09-04 21:53 ` Paul Moore 2020-09-04 21:53 ` Paul Moore 2020-09-04 23:58 ` Casey Schaufler 2020-09-04 23:58 ` Casey Schaufler 2020-09-05 13:25 ` Paul Moore 2020-09-05 13:25 ` Paul Moore 2020-09-05 18:13 ` Casey Schaufler 2020-09-05 18:13 ` Casey Schaufler 2020-09-05 19:05 ` John Johansen 2020-09-05 19:05 ` John Johansen 2020-09-08 1:28 ` Stephen Smalley 2020-09-08 1:28 ` Stephen Smalley 2020-09-08 13:35 ` Stephen Smalley 2020-09-08 13:35 ` Stephen Smalley 2020-09-08 23:37 ` Casey Schaufler 2020-09-08 23:37 ` Casey Schaufler 2020-09-09 0:21 ` John Johansen 2020-09-09 0:21 ` John Johansen 2020-09-09 13:19 ` Stephen Smalley 2020-09-09 13:19 ` Stephen Smalley 2020-09-09 18:19 ` Casey Schaufler 2020-09-09 18:19 ` Casey Schaufler 2020-09-09 18:33 ` John Johansen 2020-09-09 18:33 ` John Johansen 2020-09-09 18:47 ` John Johansen 2020-09-09 18:47 ` John Johansen 2020-09-10 14:11 ` Paul Moore 2020-09-10 14:11 ` Paul Moore 2020-09-09 0:17 ` John Johansen 2020-09-09 0:17 ` John Johansen 2020-08-26 14:52 ` [PATCH v20 06/23] LSM: Use lsmblob in security_secctx_to_secid Casey Schaufler 2020-08-26 14:52 ` Casey Schaufler 2020-09-04 21:29 ` Paul Moore 2020-09-04 21:29 ` Paul Moore 2020-08-26 14:52 ` [PATCH v20 07/23] LSM: Use lsmblob in security_secid_to_secctx Casey Schaufler 2020-08-26 14:52 ` Casey Schaufler 2020-09-04 21:59 ` Paul Moore 2020-09-04 21:59 ` Paul Moore 2020-08-26 14:52 ` [PATCH v20 08/23] LSM: Use lsmblob in security_ipc_getsecid Casey Schaufler 2020-08-26 14:52 ` Casey Schaufler 2020-09-05 13:12 ` Paul Moore 2020-09-05 13:12 ` Paul Moore 2020-08-26 14:52 ` [PATCH v20 09/23] LSM: Use lsmblob in security_task_getsecid Casey Schaufler 2020-08-26 14:52 ` Casey Schaufler 2020-09-05 13:18 ` Paul Moore 2020-09-05 13:18 ` Paul Moore 2020-08-26 14:52 ` [PATCH v20 10/23] LSM: Use lsmblob in security_inode_getsecid Casey Schaufler 2020-08-26 14:52 ` Casey Schaufler 2020-09-05 13:20 ` Paul Moore 2020-09-05 13:20 ` Paul Moore 2020-08-26 14:52 ` [PATCH v20 11/23] LSM: Use lsmblob in security_cred_getsecid Casey Schaufler 2020-08-26 14:52 ` Casey Schaufler 2020-08-26 14:52 ` [PATCH v20 12/23] IMA: Change internal interfaces to use lsmblobs Casey Schaufler 2020-08-26 14:52 ` Casey Schaufler 2020-09-06 2:28 ` Paul Moore 2020-09-06 2:28 ` Paul Moore 2020-08-26 14:52 ` [PATCH v20 13/23] LSM: Specify which LSM to display Casey Schaufler 2020-08-26 14:52 ` Casey Schaufler 2020-08-26 14:52 ` [PATCH v20 14/23] LSM: Ensure the correct LSM context releaser Casey Schaufler 2020-08-26 14:52 ` Casey Schaufler 2020-09-06 2:45 ` Paul Moore 2020-09-06 2:45 ` Paul Moore 2020-08-26 14:52 ` [PATCH v20 15/23] LSM: Use lsmcontext in security_secid_to_secctx Casey Schaufler 2020-08-26 14:52 ` Casey Schaufler 2020-08-26 14:52 ` [PATCH v20 16/23] LSM: Use lsmcontext in security_inode_getsecctx Casey Schaufler 2020-08-26 14:52 ` Casey Schaufler 2020-09-06 2:55 ` Paul Moore 2020-09-06 2:55 ` Paul Moore 2020-08-26 14:52 ` [PATCH v20 17/23] LSM: security_secid_to_secctx in netlink netfilter Casey Schaufler 2020-08-26 14:52 ` Casey Schaufler 2020-09-06 3:11 ` Paul Moore 2020-09-06 3:11 ` Paul Moore 2020-09-08 10:46 ` Pablo Neira Ayuso 2020-09-08 10:46 ` Pablo Neira Ayuso 2020-08-26 14:52 ` [PATCH v20 18/23] NET: Store LSM netlabel data in a lsmblob Casey Schaufler 2020-08-26 14:52 ` Casey Schaufler 2020-09-06 3:27 ` Paul Moore 2020-09-06 3:27 ` Paul Moore 2020-08-26 14:52 ` [PATCH v20 19/23] LSM: Verify LSM display sanity in binder Casey Schaufler 2020-08-26 14:52 ` Casey Schaufler 2020-09-06 3:30 ` Paul Moore 2020-09-06 3:30 ` Paul Moore 2020-08-26 14:52 ` [PATCH v20 20/23] Audit: Add new record for multiple process LSM attributes Casey Schaufler 2020-08-26 14:52 ` Casey Schaufler 2020-09-03 16:32 ` James Morris 2020-09-03 16:32 ` James Morris 2020-09-03 17:00 ` John Johansen 2020-09-03 17:00 ` John Johansen 2020-09-03 21:49 ` Paul Moore 2020-09-03 21:49 ` Paul Moore 2020-09-06 16:32 ` Paul Moore 2020-09-06 16:32 ` Paul Moore 2020-08-26 14:52 ` [PATCH v20 21/23] Audit: Add a new record for multiple object " Casey Schaufler 2020-08-26 14:52 ` Casey Schaufler 2020-08-26 14:52 ` [PATCH v20 22/23] LSM: Add /proc attr entry for full LSM context Casey Schaufler 2020-08-26 14:52 ` Casey Schaufler 2020-08-26 18:02 ` Randy Dunlap [this message] 2020-08-26 18:02 ` Randy Dunlap 2020-08-26 14:52 ` [PATCH v20 23/23] AppArmor: Remove the exclusive flag Casey Schaufler 2020-08-26 14:52 ` Casey Schaufler 2020-08-26 15:27 ` [PATCH v20 00/23] LSM: Module stacking for AppArmor Casey Schaufler 2020-08-26 15:27 ` Casey Schaufler
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