From: Mimi Zohar <zohar@linux.vnet.ibm.com> To: linux-security-module@vger.kernel.org Cc: Mimi Zohar <zohar@linux.vnet.ibm.com>, "Luis R. Rodriguez" <mcgrof@suse.com>, kexec@lists.infradead.org, linux-modules@vger.kernel.org, fsdevel@vger.kernel.org, David Howells <dhowells@redhat.com>, David Woodhouse <dwmw2@infradead.org>, Kees Cook <keescook@chromium.org>, Dmitry Torokhov <dmitry.torokhov@gmail.com>, Dmitry Kasatkin <dmitry.kasatkin@gmail.com> Subject: [RFC PATCH v2 11/11] ima: require signed IMA policy Date: Mon, 18 Jan 2016 10:11:26 -0500 [thread overview] Message-ID: <1453129886-20192-12-git-send-email-zohar@linux.vnet.ibm.com> (raw) In-Reply-To: <1453129886-20192-1-git-send-email-zohar@linux.vnet.ibm.com> Require the IMA policy to be signed when additional rules can be added. Changelog v2: - add union name "hooks" to fix sparse warning v1: - initialize the policy flag - include IMA_APPRAISE_POLICY in the policy flag Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com> --- security/integrity/ima/ima_policy.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/security/integrity/ima/ima_policy.c b/security/integrity/ima/ima_policy.c index 7a63760..327e691 100644 --- a/security/integrity/ima/ima_policy.c +++ b/security/integrity/ima/ima_policy.c @@ -133,6 +133,10 @@ static struct ima_rule_entry default_appraise_rules[] = { {.action = DONT_APPRAISE, .fsmagic = SELINUX_MAGIC, .flags = IMA_FSMAGIC}, {.action = DONT_APPRAISE, .fsmagic = NSFS_MAGIC, .flags = IMA_FSMAGIC}, {.action = DONT_APPRAISE, .fsmagic = CGROUP_SUPER_MAGIC, .flags = IMA_FSMAGIC}, +#ifdef CONFIG_IMA_WRITE_POLICY + {.action = APPRAISE, .hooks.policy_id = POLICY_CHECK, + .flags = IMA_FUNC | IMA_DIGSIG_REQUIRED}, +#endif #ifndef CONFIG_IMA_APPRAISE_SIGNED_INIT {.action = APPRAISE, .fowner = GLOBAL_ROOT_UID, .flags = IMA_FOWNER}, #else @@ -414,9 +418,12 @@ void __init ima_init_policy(void) for (i = 0; i < appraise_entries; i++) { list_add_tail(&default_appraise_rules[i].list, &ima_default_rules); + if (default_appraise_rules[i].hooks.policy_id == POLICY_CHECK) + temp_ima_appraise |= IMA_APPRAISE_POLICY; } ima_rules = &ima_default_rules; + ima_update_policy_flag(); } /* Make sure we have a valid policy, at least containing some rules. */ -- 2.1.0
WARNING: multiple messages have this Message-ID (diff)
From: Mimi Zohar <zohar@linux.vnet.ibm.com> To: linux-security-module@vger.kernel.org Cc: Kees Cook <keescook@chromium.org>, fsdevel@vger.kernel.org, David Woodhouse <dwmw2@infradead.org>, "Luis R. Rodriguez" <mcgrof@suse.com>, Dmitry Torokhov <dmitry.torokhov@gmail.com>, kexec@lists.infradead.org, David Howells <dhowells@redhat.com>, Dmitry Kasatkin <dmitry.kasatkin@gmail.com>, Mimi Zohar <zohar@linux.vnet.ibm.com>, linux-modules@vger.kernel.org Subject: [RFC PATCH v2 11/11] ima: require signed IMA policy Date: Mon, 18 Jan 2016 10:11:26 -0500 [thread overview] Message-ID: <1453129886-20192-12-git-send-email-zohar@linux.vnet.ibm.com> (raw) In-Reply-To: <1453129886-20192-1-git-send-email-zohar@linux.vnet.ibm.com> Require the IMA policy to be signed when additional rules can be added. Changelog v2: - add union name "hooks" to fix sparse warning v1: - initialize the policy flag - include IMA_APPRAISE_POLICY in the policy flag Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com> --- security/integrity/ima/ima_policy.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/security/integrity/ima/ima_policy.c b/security/integrity/ima/ima_policy.c index 7a63760..327e691 100644 --- a/security/integrity/ima/ima_policy.c +++ b/security/integrity/ima/ima_policy.c @@ -133,6 +133,10 @@ static struct ima_rule_entry default_appraise_rules[] = { {.action = DONT_APPRAISE, .fsmagic = SELINUX_MAGIC, .flags = IMA_FSMAGIC}, {.action = DONT_APPRAISE, .fsmagic = NSFS_MAGIC, .flags = IMA_FSMAGIC}, {.action = DONT_APPRAISE, .fsmagic = CGROUP_SUPER_MAGIC, .flags = IMA_FSMAGIC}, +#ifdef CONFIG_IMA_WRITE_POLICY + {.action = APPRAISE, .hooks.policy_id = POLICY_CHECK, + .flags = IMA_FUNC | IMA_DIGSIG_REQUIRED}, +#endif #ifndef CONFIG_IMA_APPRAISE_SIGNED_INIT {.action = APPRAISE, .fowner = GLOBAL_ROOT_UID, .flags = IMA_FOWNER}, #else @@ -414,9 +418,12 @@ void __init ima_init_policy(void) for (i = 0; i < appraise_entries; i++) { list_add_tail(&default_appraise_rules[i].list, &ima_default_rules); + if (default_appraise_rules[i].hooks.policy_id == POLICY_CHECK) + temp_ima_appraise |= IMA_APPRAISE_POLICY; } ima_rules = &ima_default_rules; + ima_update_policy_flag(); } /* Make sure we have a valid policy, at least containing some rules. */ -- 2.1.0 _______________________________________________ kexec mailing list kexec@lists.infradead.org http://lists.infradead.org/mailman/listinfo/kexec
next prev parent reply other threads:[~2016-01-18 15:25 UTC|newest] Thread overview: 100+ messages / expand[flat|nested] mbox.gz Atom feed top 2016-01-18 15:11 [RFC PATCH v2 00/11] vfss: support for a common kernel file loader Mimi Zohar 2016-01-18 15:11 ` Mimi Zohar 2016-01-18 15:11 ` [RFC PATCH v2 01/11] ima: separate 'security.ima' reading functionality from collect Mimi Zohar 2016-01-18 15:11 ` Mimi Zohar 2016-01-19 20:00 ` Dmitry Kasatkin 2016-01-19 20:00 ` Dmitry Kasatkin 2016-01-21 13:19 ` Mimi Zohar 2016-01-21 13:19 ` Mimi Zohar 2016-01-21 18:18 ` Dmitry Kasatkin 2016-01-21 18:18 ` Dmitry Kasatkin 2016-01-18 15:11 ` [RFC PATCH v2 02/11] vfs: define a generic function to read a file from the kernel Mimi Zohar 2016-01-18 15:11 ` Mimi Zohar 2016-01-20 1:09 ` Luis R. Rodriguez 2016-01-20 1:09 ` Luis R. Rodriguez 2016-01-21 13:24 ` Mimi Zohar 2016-01-21 13:24 ` Mimi Zohar 2016-01-18 15:11 ` [RFC PATCH v2 03/11] ima: provide buffer hash calculation function Mimi Zohar 2016-01-18 15:11 ` Mimi Zohar 2016-01-19 19:26 ` Dmitry Kasatkin 2016-01-19 19:26 ` Dmitry Kasatkin 2016-01-21 13:18 ` Mimi Zohar 2016-01-21 13:18 ` Mimi Zohar 2016-01-18 15:11 ` [RFC PATCH v2 04/11] ima: calculate the hash of a buffer using aynchronous hash(ahash) Mimi Zohar 2016-01-18 15:11 ` Mimi Zohar 2016-01-18 15:11 ` [RFC PATCH v2 05/11] ima: define a new hook to measure and appraise a file already in memory Mimi Zohar 2016-01-18 15:11 ` Mimi Zohar 2016-01-18 15:11 ` [RFC PATCH v2 06/11] kexec: replace call to copy_file_from_fd() with kernel version Mimi Zohar 2016-01-18 15:11 ` Mimi Zohar 2016-01-20 3:22 ` Minfei Huang 2016-01-20 3:22 ` Minfei Huang 2016-01-20 23:12 ` Luis R. Rodriguez 2016-01-20 23:12 ` Luis R. Rodriguez 2016-01-21 0:27 ` Dmitry Torokhov 2016-01-21 0:27 ` Dmitry Torokhov 2016-01-25 6:37 ` Dave Young 2016-01-25 6:37 ` Dave Young 2016-01-25 7:02 ` Dave Young 2016-01-25 7:02 ` Dave Young 2016-01-25 15:04 ` Mimi Zohar 2016-01-25 15:04 ` Mimi Zohar 2016-01-25 20:34 ` Luis R. Rodriguez 2016-01-25 20:34 ` Luis R. Rodriguez 2016-01-25 23:48 ` Mimi Zohar 2016-01-25 23:48 ` Mimi Zohar 2016-01-26 20:48 ` Luis R. Rodriguez 2016-01-26 20:48 ` Luis R. Rodriguez 2016-01-26 1:20 ` Dave Young 2016-01-26 1:20 ` Dave Young 2016-01-26 16:40 ` Mimi Zohar 2016-01-26 16:40 ` Mimi Zohar 2016-01-27 1:50 ` Dave Young 2016-01-27 1:50 ` Dave Young 2016-01-18 15:11 ` [RFC PATCH v2 07/11] firmware: replace call to fw_read_file_contents() " Mimi Zohar 2016-01-18 15:11 ` Mimi Zohar 2016-01-20 0:10 ` Kees Cook 2016-01-20 0:10 ` Kees Cook 2016-01-21 12:04 ` Mimi Zohar 2016-01-21 12:04 ` Mimi Zohar 2016-01-20 23:39 ` Luis R. Rodriguez 2016-01-20 23:39 ` Luis R. Rodriguez 2016-01-20 23:56 ` Luis R. Rodriguez 2016-01-20 23:56 ` Luis R. Rodriguez 2016-01-21 12:05 ` Mimi Zohar 2016-01-21 12:05 ` Mimi Zohar 2016-01-21 16:49 ` Luis R. Rodriguez 2016-01-21 16:49 ` Luis R. Rodriguez 2016-01-18 15:11 ` [RFC PATCH v2 08/11] module: replace copy_module_from_fd " Mimi Zohar 2016-01-18 15:11 ` Mimi Zohar 2016-01-21 0:03 ` Luis R. Rodriguez 2016-01-21 0:03 ` Luis R. Rodriguez 2016-01-21 13:12 ` Mimi Zohar 2016-01-21 13:12 ` Mimi Zohar 2016-01-21 15:45 ` Paul Moore 2016-01-21 15:45 ` Paul Moore 2016-01-21 21:15 ` Mimi Zohar 2016-01-21 21:15 ` Mimi Zohar 2016-01-21 21:26 ` Paul Moore 2016-01-21 21:26 ` Paul Moore 2016-01-21 21:58 ` Kees Cook 2016-01-21 21:58 ` Kees Cook 2016-01-21 16:56 ` Luis R. Rodriguez 2016-01-21 16:56 ` Luis R. Rodriguez 2016-01-21 20:37 ` Mimi Zohar 2016-01-21 20:37 ` Mimi Zohar 2016-01-18 15:11 ` [RFC PATCH v2 09/11] ima: load policy using path Mimi Zohar 2016-01-18 15:11 ` Mimi Zohar 2016-01-21 0:05 ` Luis R. Rodriguez 2016-01-21 0:05 ` Luis R. Rodriguez 2016-01-21 13:15 ` Mimi Zohar 2016-01-21 13:15 ` Mimi Zohar 2016-01-23 2:59 ` Luis R. Rodriguez 2016-01-23 2:59 ` Luis R. Rodriguez 2016-01-18 15:11 ` [RFC PATCH v2 10/11] ima: measure and appraise the IMA policy itself Mimi Zohar 2016-01-18 15:11 ` Mimi Zohar 2016-01-18 15:11 ` Mimi Zohar [this message] 2016-01-18 15:11 ` [RFC PATCH v2 11/11] ima: require signed IMA policy Mimi Zohar 2016-01-21 20:16 ` [RFC PATCH v2 00/11] vfss: support for a common kernel file loader Luis R. Rodriguez 2016-01-21 20:16 ` Luis R. Rodriguez 2016-01-21 20:18 ` Mimi Zohar 2016-01-21 20:18 ` Mimi Zohar
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