capabilities: add bounding set to /proc/self/status

289f8e27 · Serge E. Hallyn <[email protected]> · 2008-05-12 14:02:13 -07:00

There is currently no way to query the bounding set of another task.  As there
appears to be no security reason not to, and as Michael Kerrisk points out the
following valid reasons to do so exist:

* consistency (I can see all of the other per-thread/process sets in
  /proc/.../status)

* debugging -- I could imagine that it would make the job of debugging an
  application that uses capabilities a little simpler.

this patch adds the bounding set to /proc/self/status right after the
effective set.

Signed-off-by: Serge E. Hallyn <[email protected]>
Acked-by: Michael Kerrisk <[email protected]>
Acked-by: Andrew G. Morgan <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

Commit: 289f8e27ed435dcbefad132def06f4e84351e94f
Parents: c8894419

Changes

1 files changed · +1 −0

File	Status	Add	Del	Content
fs/proc/array.c	modified	+1	−0	View file

fs/proc/array.c

View file

diff --git a/fs/proc/array.c b/fs/proc/array.c
index dca997a..9e3b8c3 100644
--- a/fs/proc/array.c
+++ b/fs/proc/array.c
@@ -298,6 +298,7 @@ static inline void task_cap(struct seq_file *m, struct task_struct *p)
 	render_cap_t(m, "CapInh:\t", &p->cap_inheritable);
 	render_cap_t(m, "CapPrm:\t", &p->cap_permitted);
 	render_cap_t(m, "CapEff:\t", &p->cap_effective);
+	render_cap_t(m, "CapBnd:\t", &p->cap_bset);
 }
 
 static inline void task_context_switch_counts(struct seq_file *m,