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Add another bit from FreeBSD that I forgot: in tun_output, don't try to send

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an AF_INET packet if TUN_IFHEAD is not set.
From FreeBSD and spotted (again) by DEGROOTE Arnaud.
This commit is contained in:
rpaulo 2006-04-04 15:43:23 +00:00
parent ca9de39d07
commit b5d1102290
1 changed files with 11 additions and 2 deletions
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13
sys/net/if_tun.c
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@ -1,4 +1,4 @@
/* $NetBSD: if_tun.c,v 1.85 2006/04/04 11:33:15 rpaulo Exp $ */
/* $NetBSD: if_tun.c,v 1.86 2006/04/04 15:43:23 rpaulo Exp $ */
/*
* Copyright (c) 1988, Julian Onions <jpo@cs.nott.ac.uk>
@ -15,7 +15,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: if_tun.c,v 1.85 2006/04/04 11:33:15 rpaulo Exp $");
__KERNEL_RCSID(0, "$NetBSD: if_tun.c,v 1.86 2006/04/04 15:43:23 rpaulo Exp $");
#include "opt_inet.h"
#include "opt_ns.h"
@ -554,6 +554,15 @@ tun_output(struct ifnet *ifp, struct mbuf *m0, struct sockaddr *dst,
}
af = mtod(m0,uint32_t *);
*af = htonl(dst->sa_family);
} else {
#ifdef INET
if (dst->sa_family != AF_INET)
#endif
{
m_freem(m0);
error = EAFNOSUPPORT;
goto out;
}
}
/* FALLTHROUGH */
case AF_UNSPEC: