RFC [patch 24/34] PID Virtualization use vpgid_to_pgid function

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Same as previous patch for pids, but here we focus on virtual
ids that are interpreted as process group ids. Since process
groups ids can be negative, they are handled as to deal with
the negative value.

Signed-off-by: Hubertus Franke <[email protected]>
---
 fs/fcntl.c          |    1 +
 kernel/capability.c |    1 +
 kernel/exit.c       |    2 ++
 3 files changed, 4 insertions(+)

Index: linux-2.6.15/fs/fcntl.c
===================================================================
--- linux-2.6.15.orig/fs/fcntl.c	2006-01-17 08:37:05.000000000 -0500
+++ linux-2.6.15/fs/fcntl.c	2006-01-17 08:37:06.000000000 -0500
@@ -267,6 +267,7 @@
 	if (err)
 		return err;
 
+	arg = vpgid_to_pgid(arg);
 	f_modown(filp, arg, current->uid, current->euid, force);
 	return 0;
 }
Index: linux-2.6.15/kernel/capability.c
===================================================================
--- linux-2.6.15.orig/kernel/capability.c	2006-01-17 08:37:06.000000000 -0500
+++ linux-2.6.15/kernel/capability.c	2006-01-17 08:37:06.000000000 -0500
@@ -188,6 +188,7 @@
      if (get_user(pid, &header->pid))
 	     return -EFAULT; 
 
+     pid = vpgid_to_pgid(pid);
      if (pid && pid != task_pid(current) && !capable(CAP_SETPCAP))
              return -EPERM;
 
Index: linux-2.6.15/kernel/exit.c
===================================================================
--- linux-2.6.15.orig/kernel/exit.c	2006-01-17 08:37:06.000000000 -0500
+++ linux-2.6.15/kernel/exit.c	2006-01-17 08:37:06.000000000 -0500
@@ -1556,6 +1556,8 @@
 	if (options & ~(WNOHANG|WUNTRACED|WCONTINUED|
 			__WNOTHREAD|__WCLONE|__WALL))
 		return -EINVAL;
+	if (pid != -1)
+		pid = vpgid_to_pgid(pid);
 	ret = do_wait(pid, options | WEXITED, NULL, stat_addr, ru);
 
 	/* avoid REGPARM breakage on x86: */

--

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

[Index of Archives]     [Kernel Newbies]     [Netfilter]     [Bugtraq]     [Photo]     [Stuff]     [Gimp]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Video 4 Linux]     [Linux for the blind]     [Linux Resources]
  Powered by Linux