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authorLakshmi Ramasubramanian <nramas@linux.microsoft.com>2020-06-19 00:10:11 +0300
committerMimi Zohar <zohar@linux.ibm.com>2020-07-17 04:48:11 +0300
commit2f845882ecd2f6808f87f387dfa9b03d71a68e01 (patch)
treea7690a91030e8f8cd445f6f15ab7198d269c1fa8 /security
parent20c59ce010f84300f6c655d32db2610d3433f85c (diff)
downloadlinux-2f845882ecd2f6808f87f387dfa9b03d71a68e01.tar.xz
integrity: Add errno field in audit message
Error code is not included in the audit messages logged by the integrity subsystem. Define a new function integrity_audit_message() that takes error code in the "errno" parameter. Add "errno" field in the audit messages logged by the integrity subsystem and set the value passed in the "errno" parameter. [ 6.303048] audit: type=1804 audit(1592506281.627:2): pid=1 uid=0 auid=4294967295 ses=4294967295 subj=kernel op=measuring_key cause=ENOMEM comm="swapper/0" name=".builtin_trusted_keys" res=0 errno=-12 [ 7.987647] audit: type=1802 audit(1592506283.312:9): pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0 op=policy_update cause=completed comm="systemd" res=1 errno=0 [ 8.019432] audit: type=1804 audit(1592506283.344:10): pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0 op=measuring_kexec_cmdline cause=hashing_error comm="systemd" name="kexec-cmdline" res=0 errno=-22 Signed-off-by: Lakshmi Ramasubramanian <nramas@linux.microsoft.com> Suggested-by: Steve Grubb <sgrubb@redhat.com> Suggested-by: Mimi Zohar <zohar@linux.ibm.com> Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
Diffstat (limited to 'security')
-rw-r--r--security/integrity/integrity.h13
-rw-r--r--security/integrity/integrity_audit.c11
2 files changed, 23 insertions, 1 deletions
diff --git a/security/integrity/integrity.h b/security/integrity/integrity.h
index 16c1894c29bb..413c803c5208 100644
--- a/security/integrity/integrity.h
+++ b/security/integrity/integrity.h
@@ -239,6 +239,11 @@ void integrity_audit_msg(int audit_msgno, struct inode *inode,
const unsigned char *fname, const char *op,
const char *cause, int result, int info);
+void integrity_audit_message(int audit_msgno, struct inode *inode,
+ const unsigned char *fname, const char *op,
+ const char *cause, int result, int info,
+ int errno);
+
static inline struct audit_buffer *
integrity_audit_log_start(struct audit_context *ctx, gfp_t gfp_mask, int type)
{
@@ -253,6 +258,14 @@ static inline void integrity_audit_msg(int audit_msgno, struct inode *inode,
{
}
+static inline void integrity_audit_message(int audit_msgno,
+ struct inode *inode,
+ const unsigned char *fname,
+ const char *op, const char *cause,
+ int result, int info, int errno)
+{
+}
+
static inline struct audit_buffer *
integrity_audit_log_start(struct audit_context *ctx, gfp_t gfp_mask, int type)
{
diff --git a/security/integrity/integrity_audit.c b/security/integrity/integrity_audit.c
index 5109173839cc..f25e7df099c8 100644
--- a/security/integrity/integrity_audit.c
+++ b/security/integrity/integrity_audit.c
@@ -29,6 +29,15 @@ void integrity_audit_msg(int audit_msgno, struct inode *inode,
const unsigned char *fname, const char *op,
const char *cause, int result, int audit_info)
{
+ integrity_audit_message(audit_msgno, inode, fname, op, cause,
+ result, audit_info, 0);
+}
+
+void integrity_audit_message(int audit_msgno, struct inode *inode,
+ const unsigned char *fname, const char *op,
+ const char *cause, int result, int audit_info,
+ int errno)
+{
struct audit_buffer *ab;
char name[TASK_COMM_LEN];
@@ -53,6 +62,6 @@ void integrity_audit_msg(int audit_msgno, struct inode *inode,
audit_log_untrustedstring(ab, inode->i_sb->s_id);
audit_log_format(ab, " ino=%lu", inode->i_ino);
}
- audit_log_format(ab, " res=%d", !result);
+ audit_log_format(ab, " res=%d errno=%d", !result, errno);
audit_log_end(ab);
}