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authorDavidlohr Bueso <dave@stgolabs.net>2015-02-22 18:20:00 -0800
committerPaul Moore <pmoore@redhat.com>2015-02-23 16:55:47 -0500
commit4766b199ef9e1ca6316ee4f8f9d80c2ba1ed0290 (patch)
tree944e02461fe60016f75677b1661b5a8dd3d20d91 /kernel/audit.c
parent5985de6754a6fc22fbf7e4b6033d4bfa0240a63a (diff)
downloadlinux-sh-4766b199ef9e1ca6316ee4f8f9d80c2ba1ed0290.tar.gz
audit: consolidate handling of mm->exe_file
This patch adds a audit_log_d_path_exe() helper function to share how we handle auditing of the exe_file's path. Used by both audit and auditsc. No functionality is changed. Signed-off-by: Davidlohr Bueso <dbueso@suse.de> [PM: tweaked subject line] Signed-off-by: Paul Moore <pmoore@redhat.com>
Diffstat (limited to 'kernel/audit.c')
-rw-r--r--kernel/audit.c23
1 files changed, 15 insertions, 8 deletions
diff --git a/kernel/audit.c b/kernel/audit.c
index d219bb03a364..684b51d612a3 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -1848,11 +1848,24 @@ error_path:
}
EXPORT_SYMBOL(audit_log_task_context);
+void audit_log_d_path_exe(struct audit_buffer *ab,
+ struct mm_struct *mm)
+{
+ if (!mm) {
+ audit_log_format(ab, " exe=(null)");
+ return;
+ }
+
+ down_read(&mm->mmap_sem);
+ if (mm->exe_file)
+ audit_log_d_path(ab, " exe=", &mm->exe_file->f_path);
+ up_read(&mm->mmap_sem);
+}
+
void audit_log_task_info(struct audit_buffer *ab, struct task_struct *tsk)
{
const struct cred *cred;
char comm[sizeof(tsk->comm)];
- struct mm_struct *mm = tsk->mm;
char *tty;
if (!ab)
@@ -1888,13 +1901,7 @@ void audit_log_task_info(struct audit_buffer *ab, struct task_struct *tsk)
audit_log_format(ab, " comm=");
audit_log_untrustedstring(ab, get_task_comm(comm, tsk));
- if (mm) {
- down_read(&mm->mmap_sem);
- if (mm->exe_file)
- audit_log_d_path(ab, " exe=", &mm->exe_file->f_path);
- up_read(&mm->mmap_sem);
- } else
- audit_log_format(ab, " exe=(null)");
+ audit_log_d_path_exe(ab, tsk->mm);
audit_log_task_context(ab);
}
EXPORT_SYMBOL(audit_log_task_info);