From: Paul Moore <paul@paul-moore.com>
To: linux-security-module@vger.kernel.org,
linux-integrity@vger.kernel.org, selinux@vger.kernel.org
Cc: "John Johansen" <john.johansen@canonical.com>,
"Mimi Zohar" <zohar@linux.ibm.com>,
"Roberto Sassu" <roberto.sassu@huawei.com>,
"Fan Wu" <wufan@kernel.org>, "Mickaël Salaün" <mic@digikod.net>,
"Günther Noack" <gnoack@google.com>,
"Kees Cook" <kees@kernel.org>,
"Micah Morton" <mortonm@chromium.org>,
"Casey Schaufler" <casey@schaufler-ca.com>,
"Tetsuo Handa" <penguin-kernel@I-love.SAKURA.ne.jp>,
"Nicolas Bouchinet" <nicolas.bouchinet@oss.cyber.gouv.fr>,
"Xiu Jianfeng" <xiujianfeng@huawei.com>
Subject: [PATCH v4 22/34] lsm: group lsm_order_parse() with the other lsm_order_*() functions
Date: Tue, 16 Sep 2025 18:03:49 -0400 [thread overview]
Message-ID: <20250916220355.252592-58-paul@paul-moore.com> (raw)
In-Reply-To: <20250916220355.252592-36-paul@paul-moore.com>
Move the lsm_order_parse() function near the other lsm_order_*()
functions to improve readability.
No code changes.
Reviewed-by: Casey Schaufler <casey@schaufler-ca.com>
Reviewed-by: John Johansen <john.johhansen@canonical.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
---
security/lsm_init.c | 140 ++++++++++++++++++++++----------------------
1 file changed, 70 insertions(+), 70 deletions(-)
diff --git a/security/lsm_init.c b/security/lsm_init.c
index c6aea57a01e6..363aac92a8da 100644
--- a/security/lsm_init.c
+++ b/security/lsm_init.c
@@ -169,6 +169,76 @@ static void __init lsm_order_append(struct lsm_info *lsm, const char *src)
lsm_pr_dbg("enabling LSM %s:%s\n", src, lsm->id->name);
}
+/**
+ * lsm_order_parse - Parse the comma delimited LSM list
+ * @list: LSM list
+ * @src: source of the list
+ */
+static void __init lsm_order_parse(const char *list, const char *src)
+{
+ struct lsm_info *lsm;
+ char *sep, *name, *next;
+
+ /* Handle any Legacy LSM exclusions if one was specified. */
+ if (lsm_order_legacy) {
+ /*
+ * To match the original "security=" behavior, this explicitly
+ * does NOT fallback to another Legacy Major if the selected
+ * one was separately disabled: disable all non-matching
+ * Legacy Major LSMs.
+ */
+ lsm_for_each_raw(lsm) {
+ if ((lsm->flags & LSM_FLAG_LEGACY_MAJOR) &&
+ strcmp(lsm->id->name, lsm_order_legacy)) {
+ lsm_enabled_set(lsm, false);
+ lsm_pr_dbg("skip legacy LSM conflict %s:%s\n",
+ src, lsm->id->name);
+ }
+ }
+ }
+
+ /* LSM_ORDER_FIRST */
+ lsm_for_each_raw(lsm) {
+ if (lsm->order == LSM_ORDER_FIRST)
+ lsm_order_append(lsm, "first");
+ }
+
+ /* Normal or "mutable" LSMs */
+ sep = kstrdup(list, GFP_KERNEL);
+ next = sep;
+ /* Walk the list, looking for matching LSMs. */
+ while ((name = strsep(&next, ",")) != NULL) {
+ lsm_for_each_raw(lsm) {
+ if (!strcmp(lsm->id->name, name) &&
+ lsm->order == LSM_ORDER_MUTABLE)
+ lsm_order_append(lsm, src);
+ }
+ }
+ kfree(sep);
+
+ /* Legacy LSM if specified. */
+ if (lsm_order_legacy) {
+ lsm_for_each_raw(lsm) {
+ if (!strcmp(lsm->id->name, lsm_order_legacy))
+ lsm_order_append(lsm, src);
+ }
+ }
+
+ /* LSM_ORDER_LAST */
+ lsm_for_each_raw(lsm) {
+ if (lsm->order == LSM_ORDER_LAST)
+ lsm_order_append(lsm, "last");
+ }
+
+ /* Disable all LSMs not previously enabled. */
+ lsm_for_each_raw(lsm) {
+ if (lsm_order_exists(lsm))
+ continue;
+ lsm_enabled_set(lsm, false);
+ lsm_pr_dbg("skip disabled LSM %s:%s\n", src, lsm->id->name);
+ }
+}
+
/**
* lsm_blob_size_update - Update the LSM blob size and offset information
* @sz_req: the requested additional blob size
@@ -241,76 +311,6 @@ static void __init lsm_init_single(struct lsm_info *lsm)
WARN(ret, "%s failed to initialize: %d\n", lsm->id->name, ret);
}
-/**
- * lsm_order_parse - Parse the comma delimited LSM list
- * @list: LSM list
- * @src: source of the list
- */
-static void __init lsm_order_parse(const char *list, const char *src)
-{
- struct lsm_info *lsm;
- char *sep, *name, *next;
-
- /* Handle any Legacy LSM exclusions if one was specified. */
- if (lsm_order_legacy) {
- /*
- * To match the original "security=" behavior, this explicitly
- * does NOT fallback to another Legacy Major if the selected
- * one was separately disabled: disable all non-matching
- * Legacy Major LSMs.
- */
- lsm_for_each_raw(lsm) {
- if ((lsm->flags & LSM_FLAG_LEGACY_MAJOR) &&
- strcmp(lsm->id->name, lsm_order_legacy)) {
- lsm_enabled_set(lsm, false);
- lsm_pr_dbg("skip legacy LSM conflict %s:%s\n",
- src, lsm->id->name);
- }
- }
- }
-
- /* LSM_ORDER_FIRST */
- lsm_for_each_raw(lsm) {
- if (lsm->order == LSM_ORDER_FIRST)
- lsm_order_append(lsm, "first");
- }
-
- /* Normal or "mutable" LSMs */
- sep = kstrdup(list, GFP_KERNEL);
- next = sep;
- /* Walk the list, looking for matching LSMs. */
- while ((name = strsep(&next, ",")) != NULL) {
- lsm_for_each_raw(lsm) {
- if (!strcmp(lsm->id->name, name) &&
- lsm->order == LSM_ORDER_MUTABLE)
- lsm_order_append(lsm, src);
- }
- }
- kfree(sep);
-
- /* Legacy LSM if specified. */
- if (lsm_order_legacy) {
- lsm_for_each_raw(lsm) {
- if (!strcmp(lsm->id->name, lsm_order_legacy))
- lsm_order_append(lsm, src);
- }
- }
-
- /* LSM_ORDER_LAST */
- lsm_for_each_raw(lsm) {
- if (lsm->order == LSM_ORDER_LAST)
- lsm_order_append(lsm, "last");
- }
-
- /* Disable all LSMs not previously enabled. */
- lsm_for_each_raw(lsm) {
- if (lsm_order_exists(lsm))
- continue;
- lsm_enabled_set(lsm, false);
- lsm_pr_dbg("skip disabled LSM %s:%s\n", src, lsm->id->name);
- }
-}
-
/**
* lsm_static_call_init - Initialize a LSM's static calls
* @hl: LSM hook list
--
2.51.0
next prev parent reply other threads:[~2025-09-16 22:14 UTC|newest]
Thread overview: 69+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-16 22:03 [PATCH v4 0/34] Rework the LSM initialization Paul Moore
2025-09-16 22:03 ` [PATCH v4 01/34] lsm: split the notifier code out into lsm_notifier.c Paul Moore
2025-09-19 10:44 ` Mimi Zohar
2025-09-16 22:03 ` [PATCH v4 02/34] lsm: split the init code out into lsm_init.c Paul Moore
2025-09-19 10:45 ` Mimi Zohar
2025-09-16 22:03 ` [PATCH v4 03/34] lsm: consolidate lsm_allowed() and prepare_lsm() into lsm_prepare() Paul Moore
2025-09-19 10:45 ` Mimi Zohar
2025-09-16 22:03 ` [PATCH v4 04/34] lsm: introduce looping macros for the initialization code Paul Moore
2025-09-19 10:45 ` Mimi Zohar
2025-09-16 22:03 ` [PATCH v4 05/34] lsm: integrate report_lsm_order() code into caller Paul Moore
2025-09-19 10:45 ` Mimi Zohar
2025-09-16 22:03 ` [PATCH v4 06/34] lsm: integrate lsm_early_cred() and lsm_early_task() " Paul Moore
2025-09-19 10:45 ` Mimi Zohar
2025-09-16 22:03 ` [PATCH v4 07/34] lsm: rename ordered_lsm_init() to lsm_init_ordered() Paul Moore
2025-09-19 10:45 ` Mimi Zohar
2025-09-16 22:03 ` [PATCH v4 08/34] lsm: replace the name field with a pointer to the lsm_id struct Paul Moore
2025-09-19 19:02 ` Mimi Zohar
2025-09-16 22:03 ` [PATCH v4 09/34] lsm: rename the lsm order variables for consistency Paul Moore
2025-09-19 19:02 ` Mimi Zohar
2025-09-16 22:03 ` [PATCH v4 10/34] lsm: rework lsm_active_cnt and lsm_idlist[] Paul Moore
2025-09-19 19:02 ` Mimi Zohar
2025-09-16 22:03 ` [PATCH v4 11/34] lsm: get rid of the lsm_names list and do some cleanup Paul Moore
2025-09-19 19:15 ` Mimi Zohar
2025-09-21 19:23 ` Paul Moore
2025-09-22 10:52 ` Mimi Zohar
2025-09-22 21:52 ` Paul Moore
2025-09-16 22:03 ` [PATCH v4 12/34] lsm: rework the LSM enable/disable setter/getter functions Paul Moore
2025-09-19 19:04 ` Mimi Zohar
2025-09-16 22:03 ` [PATCH v4 13/34] lsm: rename exists_ordered_lsm() to lsm_order_exists() Paul Moore
2025-09-19 19:05 ` Mimi Zohar
2025-09-16 22:03 ` [PATCH v4 14/34] lsm: rename/rework append_ordered_lsm() into lsm_order_append() Paul Moore
2025-09-16 22:03 ` [PATCH v4 15/34] lsm: rename/rework ordered_lsm_parse() to lsm_order_parse() Paul Moore
2025-09-18 11:29 ` Mimi Zohar
2025-09-18 15:38 ` Paul Moore
2025-09-18 15:55 ` Mimi Zohar
2025-09-16 22:03 ` [PATCH v4 16/34] lsm: cleanup the LSM blob size code Paul Moore
2025-09-18 15:14 ` Mimi Zohar
2025-09-16 22:03 ` [PATCH v4 17/34] lsm: cleanup initialize_lsm() and rename to lsm_init_single() Paul Moore
2025-09-18 15:28 ` Mimi Zohar
2025-09-16 22:03 ` [PATCH v4 18/34] lsm: fold lsm_init_ordered() into security_init() Paul Moore
2025-09-16 22:03 ` [PATCH v4 19/34] lsm: add/tweak function header comment blocks in lsm_init.c Paul Moore
2025-09-16 22:03 ` [PATCH v4 20/34] lsm: cleanup the debug and console output " Paul Moore
2025-09-18 15:50 ` Mimi Zohar
2025-09-18 15:54 ` Paul Moore
2025-09-16 22:03 ` [PATCH v4 21/34] lsm: output available LSMs when debugging Paul Moore
2025-09-18 17:11 ` Mimi Zohar
2025-09-16 22:03 ` Paul Moore [this message]
2025-09-18 17:22 ` [PATCH v4 22/34] lsm: group lsm_order_parse() with the other lsm_order_*() functions Mimi Zohar
2025-09-16 22:03 ` [PATCH v4 23/34] lsm: introduce an initcall mechanism into the LSM framework Paul Moore
2025-09-18 17:19 ` Mimi Zohar
2025-09-16 22:03 ` [PATCH v4 24/34] loadpin: move initcalls to " Paul Moore
2025-09-18 11:15 ` Mimi Zohar
2025-09-18 15:27 ` Paul Moore
2025-09-16 22:03 ` [PATCH v4 25/34] ipe: " Paul Moore
2025-09-16 22:03 ` [PATCH v4 26/34] smack: " Paul Moore
2025-09-16 22:03 ` [PATCH v4 27/34] tomoyo: " Paul Moore
2025-09-16 22:03 ` [PATCH v4 28/34] safesetid: " Paul Moore
2025-09-16 22:03 ` [PATCH v4 29/34] apparmor: " Paul Moore
2025-09-16 22:03 ` [PATCH v4 30/34] lockdown: " Paul Moore
2025-09-16 22:03 ` [PATCH v4 31/34] ima,evm: " Paul Moore
2025-09-30 20:11 ` Paul Moore
2025-10-01 17:03 ` Mimi Zohar
2025-10-01 17:23 ` Paul Moore
2025-10-10 16:53 ` Mimi Zohar
2025-10-10 19:21 ` Paul Moore
2025-10-10 10:19 ` Mimi Zohar
2025-09-16 22:03 ` [PATCH v4 32/34] selinux: " Paul Moore
2025-09-16 22:04 ` [PATCH v4 33/34] lsm: consolidate all of the LSM framework initcalls Paul Moore
2025-09-16 22:04 ` [PATCH v4 34/34] lsm: add a LSM_STARTED_ALL notification event Paul Moore
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