Adds the seccomp mode to the /proc/$pid/status file so the state of
seccomp can be externally examined.
Signed-off-by: Kees Cook <keesc...@chromium.org>
---
fs/proc/array.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/fs/proc/array.c b/fs/proc/array.c
index c1c207c..135d6ac 100644
--- a/fs/proc/array.c
+++ b/fs/proc/array.c
@@ -327,6 +327,13 @@ static inline void task_cap(struct seq_file *m, struct
task_struct *p)
render_cap_t(m, "CapBnd:\t", &cap_bset);
}
+static inline void task_seccomp(struct seq_file *m, struct task_struct *p)
+{
+#ifdef CONFIG_SECCOMP
+ seq_printf(m, "Seccomp:\t%d\n", p->seccomp.mode);
+#endif
+}
+
static inline void task_context_switch_counts(struct seq_file *m,
struct task_struct *p)
{
@@ -360,6 +367,7 @@ int proc_pid_status(struct seq_file *m, struct
pid_namespace *ns,
}
task_sig(m, task);
task_cap(m, task);
+ task_seccomp(m, task);
task_cpus_allowed(m, task);
cpuset_task_status_allowed(m, task);
task_context_switch_counts(m, task);
--
1.7.9.5
--
Kees Cook
Chrome OS Security
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