On Sun, Jan 29, 2006 at 12:08:54AM +0100, Robert Hillen wrote:
> This happens when logging in to the uml via a telnet port. The problem
> is that in this case the /dev/net/tun device remains attached to 3
> proceses on the host:
Nice diagnosis - does this patch below help?
Index: linux-2.6.15-mm/arch/um/os-Linux/drivers/tuntap_user.c
===================================================================
--- linux-2.6.15-mm.orig/arch/um/os-Linux/drivers/tuntap_user.c 2006-01-03
17:39:46.000000000 -0500
+++ linux-2.6.15-mm/arch/um/os-Linux/drivers/tuntap_user.c 2006-01-28
21:08:13.000000000 -0500
@@ -122,6 +122,7 @@ static int tuntap_open_tramp(char *gate,
return(-EINVAL);
}
*fd_out = ((int *) CMSG_DATA(cmsg))[0];
+ os_set_exec_close(*fd_out, 1);
return(0);
}
@@ -137,7 +138,8 @@ static int tuntap_open(void *data)
return(err);
if(pri->fixed_config){
- pri->fd = os_open_file("/dev/net/tun", of_rdwr(OPENFLAGS()), 0);
+ pri->fd = os_open_file("/dev/net/tun",
+ of_cloexec(of_rdwr(OPENFLAGS())), 0);
if(pri->fd < 0){
printk("Failed to open /dev/net/tun, err = %d\n",
-pri->fd);
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