int
ddp_output( struct mbuf *m, struct socket *so)
{
struct ddpehdr *deh;
struct ddpcb *ddp = sotoddpcb( so );
#ifdef MAC
mac_create_mbuf_from_socket(so, m);
#endif
M_PREPEND( m, sizeof( struct ddpehdr ), M_TRYWAIT );
deh = mtod( m, struct ddpehdr *);
deh->deh_pad = 0;
deh->deh_hops = 0;
deh->deh_len = m->m_pkthdr.len;
deh->deh_dnet = ddp->ddp_fsat.sat_addr.s_net;
deh->deh_dnode = ddp->ddp_fsat.sat_addr.s_node;
deh->deh_dport = ddp->ddp_fsat.sat_port;
deh->deh_snet = ddp->ddp_lsat.sat_addr.s_net;
deh->deh_snode = ddp->ddp_lsat.sat_addr.s_node;
deh->deh_sport = ddp->ddp_lsat.sat_port;
/*
* The checksum calculation is done after all of the other bytes have
* been filled in.
*/
if ( ddp_cksum ) {
deh->deh_sum = at_cksum( m, sizeof( int ));
} else {
deh->deh_sum = 0;
}
deh->deh_bytes = htonl( deh->deh_bytes );
#ifdef NETATALK_DEBUG
printf ("ddp_output: from %d.%d:%d to %d.%d:%d\n",
ntohs(deh->deh_snet), deh->deh_snode, deh->deh_sport,
ntohs(deh->deh_dnet), deh->deh_dnode, deh->deh_dport);
#endif
return( ddp_route( m, &ddp->ddp_route ));
}
int
ddp_output(struct mbuf *m, ...)
{
struct ddpcb *ddp;
struct ddpehdr *deh;
va_list ap;
va_start(ap, m);
ddp = va_arg(ap, struct ddpcb *);
va_end(ap);
M_PREPEND( m, sizeof( struct ddpehdr ), M_DONTWAIT );
if (!m)
return (ENOBUFS);
deh = mtod( m, struct ddpehdr *);
deh->deh_pad = 0;
deh->deh_hops = 0;
deh->deh_len = m->m_pkthdr.len;
deh->deh_dnet = ddp->ddp_fsat.sat_addr.s_net;
deh->deh_dnode = ddp->ddp_fsat.sat_addr.s_node;
deh->deh_dport = ddp->ddp_fsat.sat_port;
deh->deh_snet = ddp->ddp_lsat.sat_addr.s_net;
deh->deh_snode = ddp->ddp_lsat.sat_addr.s_node;
deh->deh_sport = ddp->ddp_lsat.sat_port;
/*
* The checksum calculation is done after all of the other bytes have
* been filled in.
*/
if ( ddp_cksum ) {
deh->deh_sum = at_cksum( m, sizeof( int ));
} else {
deh->deh_sum = 0;
}
deh->deh_bytes = htonl( deh->deh_bytes );
return( ddp_route( m, &ddp->ddp_route ));
}