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| author | Davidlohr Bueso <dave@stgolabs.net> | 2015-02-22 18:20:00 -0800 |
|---|---|---|
| committer | Paul Moore <pmoore@redhat.com> | 2015-02-23 16:55:47 -0500 |
| commit | 4766b199ef9e1ca6316ee4f8f9d80c2ba1ed0290 (patch) | |
| tree | 944e02461fe60016f75677b1661b5a8dd3d20d91 /kernel/audit.c | |
| parent | 5985de6754a6fc22fbf7e4b6033d4bfa0240a63a (diff) | |
| download | lwn-4766b199ef9e1ca6316ee4f8f9d80c2ba1ed0290.tar.gz lwn-4766b199ef9e1ca6316ee4f8f9d80c2ba1ed0290.zip | |
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.c | 23 |
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); |