Ok... Yet another round of fixes for smbmount and autofs.

1)  The earlier fix for the smbmount race conditions broke the PID
	registration with smbfs.  That fix has been backed out and
	replaced by a signalling convention from the child smbmount
	process back to the parent telling the parent when it is safe
	to exit.

2)  Fixing all of this uncovered a NASTY deadly embrace between smbmount,
	smbmnt, and autofs.  This was caused by the setsid call in the
	daemon code.  The smbmnt process no longer was registered as
	"magic" because it was no longer in the autofs process group.
	Many many kudos and thanks to H Peter Anvin for giving me the
	clue to solving this agravating puzzle.  The setsid was moved
	down the where the child signals the parent and a warn left in
	its place in the daemonize code.

3)  Fixed (actually worked around with a BUTT UGLY HACK) a problem with
	SMB_GET_MOUNTPID in smbumount.c.  The smb_fs.h header file has
	the parameter to this ioctl defined as a uid_t.  Unfortunately
	that's a 32 bit quantity under glibc and it's currently a 16 bit
	quantity in kernel space.  Undefined the macro and redefined
	it with a parameter of __kernel_uid_t.  That should keep us
	out of trouble till I can have someone fix smb_fs.h in the
	kernel sources...
(This used to be commit c5608093e48ed7fd3b7a1e2a4b1af7e4e59fc2f9)

1 files changed, 8 insertions, 0 deletions

diff --git a/source3/client/smbumount.c b/source3/client/smbumount.c
index 5e072274c95..84188542e59 100644
--- a/source3/client/smbumount.c
+++ b/source3/client/smbumount.c
@@ -15,6 +15,14 @@
 #include <linux/smb_mount.h>
 #include <linux/smb_fs.h>
 
+/* This is a (hopefully) temporary hack due to the fact that
+	sizeof( uid_t ) != sizeof( __kernel_uid_t ) under glibc.
+	This may change in the future and smb.h may get fixed in the
+	future.  In the mean time, it's ugly hack time - get over it.
+*/
+#undef SMB_IOC_GETMOUNTUID
+#define	SMB_IOC_GETMOUNTUID		_IOR('u', 1, __kernel_uid_t)
+
 static char *progname;
 
 static void