Add information about ioctl calls to the LSM audit data. Log the
file path and command number.
Signed-off-by: Jeff Vander Stoep <jeffv@xxxxxxxxxx>
---
include/linux/lsm_audit.h | 7 +++++++
security/lsm_audit.c | 15 +++++++++++++++
2 files changed, 22 insertions(+)
diff --git a/include/linux/lsm_audit.h b/include/linux/lsm_audit.h
index 1cc89e9..ffb9c9d 100644
--- a/include/linux/lsm_audit.h
+++ b/include/linux/lsm_audit.h
@@ -40,6 +40,11 @@ struct lsm_network_audit {
} fam;
};
+struct lsm_ioctlop_audit {
+ struct path path;
+ u16 cmd;
+};
+
/* Auxiliary data to use in generating the audit record. */
struct common_audit_data {
char type;
@@ -53,6 +58,7 @@ struct common_audit_data {
#define LSM_AUDIT_DATA_KMOD 8
#define LSM_AUDIT_DATA_INODE 9
#define LSM_AUDIT_DATA_DENTRY 10
+#define LSM_AUDIT_DATA_IOCTL_OP 11
union {
struct path path;
struct dentry *dentry;
@@ -68,6 +74,7 @@ struct common_audit_data {
} key_struct;
#endif
char *kmod_name;
+ struct lsm_ioctlop_audit *op;
} u;
/* this union contains LSM specific data */
union {
diff --git a/security/lsm_audit.c b/security/lsm_audit.c
index 69fdf3b..7147c17 100644
--- a/security/lsm_audit.c
+++ b/security/lsm_audit.c
@@ -245,6 +245,21 @@ static void dump_common_audit_data(struct audit_buffer *ab,
}
break;
}
+ case LSM_AUDIT_DATA_IOCTL_OP: {
+ struct inode *inode;
+
+ audit_log_d_path(ab, " path=", &a->u.op->path);
+
+ inode = a->u.op->path.dentry->d_inode;
+ if (inode) {
+ audit_log_format(ab, " dev=");
+ audit_log_untrustedstring(ab, inode->i_sb->s_id);
+ audit_log_format(ab, " ino=%lu", inode->i_ino);
+ }
+
+ audit_log_format(ab, " ioctlcmd=%hx", a->u.op->cmd);
+ break;
+ }
case LSM_AUDIT_DATA_DENTRY: {
struct inode *inode;
--
2.2.0.rc0.207.ga3a616c
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