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[71.126.255.178]) by smtp.gmail.com with ESMTPSA id af79cd13be357-891cfb56807sm39397285a.63.2025.10.17.13.29.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 17 Oct 2025 13:29:23 -0700 (PDT) From: Paul Moore To: linux-security-module@vger.kernel.org, linux-integrity@vger.kernel.org, selinux@vger.kernel.org Cc: John Johansen , Mimi Zohar , Roberto Sassu , Fan Wu , =?UTF-8?q?Micka=C3=ABl=20Sala=C3=BCn?= , =?UTF-8?q?G=C3=BCnther=20Noack?= , Kees Cook , Micah Morton , Casey Schaufler , Tetsuo Handa , Nicolas Bouchinet , Xiu Jianfeng Subject: [PATCH v5 21/34] lsm: output available LSMs when debugging Date: Fri, 17 Oct 2025 16:24:49 -0400 Message-ID: <20251017202456.484010-57-paul@paul-moore.com> X-Mailer: git-send-email 2.51.1.dirty In-Reply-To: <20251017202456.484010-36-paul@paul-moore.com> References: <20251017202456.484010-36-paul@paul-moore.com> Precedence: bulk X-Mailing-List: linux-integrity@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1658; i=paul@paul-moore.com; h=from:subject; bh=muxbOgaJg9v5tPWdzg/bAbRNyQbeJYHw0DoxAC0u+LE=; b=owEBbQKS/ZANAwAKAeog8tqXN4lzAcsmYgBo8qZaXuPIMjruQi3evlea3BOAk7VHfw9UtI6cg ZPV4cdzrw6JAjMEAAEKAB0WIQRLQqjPB/KZ1VSXfu/qIPLalzeJcwUCaPKmWgAKCRDqIPLalzeJ czuYEACsVrztiycgCr/u6S4++lnKdEhkHuinpbKgsRtFTPfM5IDL9xcjMncjLDRDjctlkCGF9WL MToWHPA8hzQvZ4dbDHtJBIVeWLvs+M+npfb3jV/ITIazyBIxZ3Lpf99p9gMSbwk+R474f7dyxem wwADGZMIM1qrCm5YpQXDNUg9jaHmHNm3PT7FFivLzopvH938ET0wTaX4157hS6vi4TCXriDk5ha 9q3pfzh0TeR1psPA8XSqZWYQa0uFPk7NNT82TXRw23NiHkU9HFmNldXg6GcD2nsDp9gw+SxIEpz VbYfqVo1CfZ0sfCdV1k9dekmTtnnwbFhEdDu+hlxYK+mcAFr8k4NCbUykTrZsVDt7+uYC3Oraoc mdQXqIy0egfbDK1kpVfiY1xorS8Wn8OAhMSoWhjnl6oGIEDtt9hgVonrE9ogp5Fy+46e+ziUPxR tTyUL+/Qfbq0UYp7Nihqy7/+IN//zFgAroEaYL0J1s+DmbRrvnAYm5Bzg7K6MmTzvNlfjy8/SiZ 9w4CvH6l+kFJcyvUJ+AUXq1cl3IuU0uKMgunoiiGR/Py1r8V/nxnYBgHZrjoTAwISop3dCAXGyU ky9keWn4K7euDbET4LuWwTGOF87+fDUFka03fp+9ZOPVVE77fZGu/v7RpJ6kx6D4Mdxs8PuhNWE 4nSkmrjtaDjTa+Q== X-Developer-Key: i=paul@paul-moore.com; a=openpgp; fpr=7100AADFAE6E6E940D2E0AD655E45A5AE8CA7C8A Content-Transfer-Encoding: 8bit This will display all of the LSMs built into the kernel, regardless of if they are enabled or not. Reviewed-by: Casey Schaufler Reviewed-by: John Johansen Reviewed-by: Mimi Zohar Signed-off-by: Paul Moore --- security/lsm_init.c | 19 ++++++++++++++++++- 1 file changed, 18 insertions(+), 1 deletion(-) diff --git a/security/lsm_init.c b/security/lsm_init.c index cd1779e03497..cfcf3bf7127f 100644 --- a/security/lsm_init.c +++ b/security/lsm_init.c @@ -363,6 +363,8 @@ int __init early_security_init(void) { struct lsm_info *lsm; + /* NOTE: lsm_pr_dbg() doesn't work here as lsm_debug is not yet set */ + lsm_early_for_each_raw(lsm) { lsm_enabled_set(lsm, true); lsm_order_append(lsm, "early"); @@ -385,9 +387,24 @@ int __init security_init(void) struct lsm_info **lsm; if (lsm_debug) { - lsm_pr("built-in LSM list: %s\n", lsm_order_builtin); + struct lsm_info *i; + + cnt = 0; + lsm_pr("available LSMs: "); + lsm_early_for_each_raw(i) + lsm_pr_cont("%s%s(E)", (cnt++ ? "," : ""), i->id->name); + lsm_for_each_raw(i) + lsm_pr_cont("%s%s", (cnt++ ? "," : ""), i->id->name); + lsm_pr_cont("\n"); + + lsm_pr("built-in LSM config: %s\n", lsm_order_builtin); + lsm_pr("legacy LSM parameter: %s\n", lsm_order_legacy); lsm_pr("boot LSM parameter: %s\n", lsm_order_cmdline); + + /* see the note about lsm_pr_dbg() in early_security_init() */ + lsm_early_for_each_raw(i) + lsm_pr("enabled LSM early:%s\n", i->id->name); } if (lsm_order_cmdline) { -- 2.51.1.dirty