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X25: Enable setting of cause and diagnostic fields 

Adds SIOCX25SCAUSEDIAG, allowing X.25 programs to set the cause and
diagnostic fields.

Normally used to indicate status upon closing connections.

Signed-off-by: Andrew Hendry <andrew.hendry@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
hifive-unleashed-5.1
Andrew Hendry 2009-11-18 23:30:41 -08:00 committed by David S. Miller
parent 0e4817470b
commit 386e50cc7d
3 changed files with 19 additions and 0 deletions
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1
include/linux/x25.h
View File

@ -25,6 +25,7 @@
#define SIOCX25SENDCALLACCPT (SIOCPROTOPRIVATE + 9)
#define SIOCX25GDTEFACILITIES (SIOCPROTOPRIVATE + 10)
#define SIOCX25SDTEFACILITIES (SIOCPROTOPRIVATE + 11)
#define SIOCX25SCAUSEDIAG (SIOCPROTOPRIVATE + 12)
/*
* Values for {get,set}sockopt.

12
net/x25/af_x25.c
View File

@ -1471,6 +1471,17 @@ static int x25_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
break;
}
case SIOCX25SCAUSEDIAG: {
struct x25_causediag causediag;
rc = -EFAULT;
if (copy_from_user(&causediag, argp, sizeof(causediag)))
break;
x25->causediag = causediag;
rc = 0;
break;
}
case SIOCX25SCUDMATCHLEN: {
struct x25_subaddr sub_addr;
rc = -EINVAL;
@ -1639,6 +1650,7 @@ static int compat_x25_ioctl(struct socket *sock, unsigned int cmd,
case SIOCX25GCALLUSERDATA:
case SIOCX25SCALLUSERDATA:
case SIOCX25GCAUSEDIAG:
case SIOCX25SCAUSEDIAG:
case SIOCX25SCUDMATCHLEN:
case SIOCX25CALLACCPTAPPRV:
case SIOCX25SENDCALLACCPT:

6
net/x25/x25_subr.c
View File

@ -225,6 +225,12 @@ void x25_write_internal(struct sock *sk, int frametype)
break;
case X25_CLEAR_REQUEST:
dptr = skb_put(skb, 3);
*dptr++ = frametype;
*dptr++ = x25->causediag.cause;
*dptr++ = x25->causediag.diagnostic;
break;
case X25_RESET_REQUEST:
dptr = skb_put(skb, 3);
*dptr++ = frametype;