From mboxrd@z Thu Jan 1 00:00:00 1970 From: mkayaalp@linux.vnet.ibm.com (Mehmet Kayaalp) Date: Thu, 20 Jul 2017 18:50:33 -0400 Subject: [RFC PATCH 5/5] ima: Add ns_mnt, dev, ino fields to IMA audit measurement msgs In-Reply-To: <20170720225033.21298-1-mkayaalp@linux.vnet.ibm.com> References: <20170720225033.21298-1-mkayaalp@linux.vnet.ibm.com> Message-ID: <20170720225033.21298-6-mkayaalp@linux.vnet.ibm.com> To: linux-security-module@vger.kernel.org List-Id: linux-security-module.vger.kernel.org From: Guilherme Magalhaes Extending audit measurement record with mount namespace id, file inode, and device name. These fields uniquely identify a pathname considering different mount namespaces. The file inode on a given device is unique and these fields are required to identify a namespace id since this id can be released and later reused by a different process. Signed-off-by: Guilherme Magalhaes Changelog: * Change the field name from "mnt_ns" to "ns_mnt" Signed-off-by: Mehmet Kayaalp --- security/integrity/ima/ima_api.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/security/integrity/ima/ima_api.c b/security/integrity/ima/ima_api.c index 4a77072..084b126 100644 --- a/security/integrity/ima/ima_api.c +++ b/security/integrity/ima/ima_api.c @@ -18,6 +18,7 @@ #include #include #include +#include #include "ima.h" @@ -296,6 +297,7 @@ void ima_audit_measurement(struct integrity_iint_cache *iint, char algo_hash[sizeof(hash) + strlen(algo_name) + 2]; int i; unsigned long flags = iint_flags(iint, status); + struct ns_common *ns; if (flags & IMA_AUDITED) return; @@ -314,6 +316,14 @@ void ima_audit_measurement(struct integrity_iint_cache *iint, audit_log_format(ab, " hash="); snprintf(algo_hash, sizeof(algo_hash), "%s:%s", algo_name, hash); audit_log_untrustedstring(ab, algo_hash); + ns = mntns_operations.get(current); + if (!IS_ERR_OR_NULL(ns)) { + audit_log_format(ab, " ns_mnt=%u", ns->inum); + mntns_operations.put(ns); + } + audit_log_format(ab, " dev="); + audit_log_untrustedstring(ab, iint->inode->i_sb->s_id); + audit_log_format(ab, " ino=%lu", iint->inode->i_ino); audit_log_task_info(ab, current); audit_log_end(ab); -- 2.9.4 -- To unsubscribe from this list: send the line "unsubscribe linux-security-module" in the body of a message to majordomo at vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html