#include <machine/rtems-bsd-config.h>
/*-
* Copyright (c) 2004-2009 Robert N. M. Watson
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* Copyright (c) 1990, 1994 Regents of The University of Michigan.
* All Rights Reserved.
*
* Permission to use, copy, modify, and distribute this software and
* its documentation for any purpose and without fee is hereby granted,
* provided that the above copyright notice appears in all copies and
* that both that copyright notice and this permission notice appear
* in supporting documentation, and that the name of The University
* of Michigan not be used in advertising or publicity pertaining to
* distribution of the software without specific, written prior
* permission. This software is supplied as is without expressed or
* implied warranties of any kind.
*
* This product includes software developed by the University of
* California, Berkeley and its contributors.
*
* Research Systems Unix Group
* The University of Michigan
* c/o Wesley Craig
* 535 W. William Street
* Ann Arbor, Michigan
* +1-313-764-2278
* netatalk@umich.edu
*
* $FreeBSD$
*/
#include <rtems/bsd/sys/param.h>
#include <sys/systm.h>
#include <sys/malloc.h>
#include <sys/mbuf.h>
#include <sys/socket.h>
#include <sys/socketvar.h>
#include <sys/protosw.h>
#include <net/if.h>
#include <net/route.h>
#include <net/netisr.h>
#include <netatalk/at.h>
#include <netatalk/at_var.h>
#include <netatalk/ddp_var.h>
#include <netatalk/ddp_pcb.h>
#include <netatalk/at_extern.h>
static u_long ddp_sendspace = DDP_MAXSZ; /* Max ddp size + 1 (ddp_type) */
static u_long ddp_recvspace = 10 * (587 + sizeof(struct sockaddr_at));
static const struct netisr_handler atalk1_nh = {
.nh_name = "atalk1",
.nh_handler = at1intr,
.nh_proto = NETISR_ATALK1,
.nh_policy = NETISR_POLICY_SOURCE,
};
static const struct netisr_handler atalk2_nh = {
.nh_name = "atalk2",
.nh_handler = at2intr,
.nh_proto = NETISR_ATALK2,
.nh_policy = NETISR_POLICY_SOURCE,
};
static const struct netisr_handler aarp_nh = {
.nh_name = "aarp",
.nh_handler = aarpintr,
.nh_proto = NETISR_AARP,
.nh_policy = NETISR_POLICY_SOURCE,
};
static int
ddp_attach(struct socket *so, int proto, struct thread *td)
{
int error = 0;
KASSERT(sotoddpcb(so) == NULL, ("ddp_attach: ddp != NULL"));
/*
* Allocate socket buffer space first so that it's present
* before first use.
*/
error = soreserve(so, ddp_sendspace, ddp_recvspace);
if (error)
return (error);
DDP_LIST_XLOCK();
error = at_pcballoc(so);
DDP_LIST_XUNLOCK();
return (error);
}
static void
ddp_detach(struct socket *so)
{
struct ddpcb *ddp;
ddp = sotoddpcb(so);
KASSERT(ddp != NULL, ("ddp_detach: ddp == NULL"));
DDP_LIST_XLOCK();
DDP_LOCK(ddp);
at_pcbdetach(so, ddp);
DDP_LIST_XUNLOCK();
}
static int
ddp_bind(struct socket *so, struct sockaddr *nam, struct thread *td)
{
struct ddpcb *ddp;
int error = 0;
ddp = sotoddpcb(so);
KASSERT(ddp != NULL, ("ddp_bind: ddp == NULL"));
DDP_LIST_XLOCK();
DDP_LOCK(ddp);
error = at_pcbsetaddr(ddp, nam, td);
DDP_UNLOCK(ddp);
DDP_LIST_XUNLOCK();
return (error);
}
static int
ddp_connect(struct socket *so, struct sockaddr *nam, struct thread *td)
{
struct ddpcb *ddp;
int error = 0;
ddp = sotoddpcb(so);
KASSERT(ddp != NULL, ("ddp_connect: ddp == NULL"));
DDP_LIST_XLOCK();
DDP_LOCK(ddp);
if (ddp->ddp_fsat.sat_port != ATADDR_ANYPORT) {
DDP_UNLOCK(ddp);
DDP_LIST_XUNLOCK();
return (EISCONN);
}
error = at_pcbconnect( ddp, nam, td );
DDP_UNLOCK(ddp);
DDP_LIST_XUNLOCK();
if (error == 0)
soisconnected(so);
return (error);
}
static int
ddp_disconnect(struct socket *so)
{
struct ddpcb *ddp;
ddp = sotoddpcb(so);
KASSERT(ddp != NULL, ("ddp_disconnect: ddp == NULL"));
DDP_LOCK(ddp);
if (ddp->ddp_fsat.sat_addr.s_node == ATADDR_ANYNODE) {
DDP_UNLOCK(ddp);
return (ENOTCONN);
}
at_pcbdisconnect(ddp);
ddp->ddp_fsat.sat_addr.s_node = ATADDR_ANYNODE;
DDP_UNLOCK(ddp);
soisdisconnected(so);
return (0);
}
static int
ddp_shutdown(struct socket *so)
{
KASSERT(sotoddpcb(so) != NULL, ("ddp_shutdown: ddp == NULL"));
socantsendmore(so);
return (0);
}
static int
ddp_send(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
struct mbuf *control, struct thread *td)
{
struct ddpcb *ddp;
int error = 0;
ddp = sotoddpcb(so);
KASSERT(ddp != NULL, ("ddp_send: ddp == NULL"));
if (control && control->m_len)
return (EINVAL);
if (addr != NULL) {
DDP_LIST_XLOCK();
DDP_LOCK(ddp);
if (ddp->ddp_fsat.sat_port != ATADDR_ANYPORT) {
error = EISCONN;
goto out;
}
error = at_pcbconnect(ddp, addr, td);
if (error == 0) {
error = ddp_output(m, so);
at_pcbdisconnect(ddp);
}
out:
DDP_UNLOCK(ddp);
DDP_LIST_XUNLOCK();
} else {
DDP_LOCK(ddp);
if (ddp->ddp_fsat.sat_port == ATADDR_ANYPORT)
error = ENOTCONN;
else
error = ddp_output(m, so);
DDP_UNLOCK(ddp);
}
return (error);
}
/*
* XXXRW: This is never called because we only invoke abort on stream
* protocols.
*/
static void
ddp_abort(struct socket *so)
{
struct ddpcb *ddp;
ddp = sotoddpcb(so);
KASSERT(ddp != NULL, ("ddp_abort: ddp == NULL"));
DDP_LOCK(ddp);
at_pcbdisconnect(ddp);
DDP_UNLOCK(ddp);
soisdisconnected(so);
}
static void
ddp_close(struct socket *so)
{
struct ddpcb *ddp;
ddp = sotoddpcb(so);
KASSERT(ddp != NULL, ("ddp_close: ddp == NULL"));
DDP_LOCK(ddp);
at_pcbdisconnect(ddp);
DDP_UNLOCK(ddp);
soisdisconnected(so);
}
void
ddp_init(void)
{
DDP_LIST_LOCK_INIT();
TAILQ_INIT(&at_ifaddrhead);
netisr_register(&atalk1_nh);
netisr_register(&atalk2_nh);
netisr_register(&aarp_nh);
}
#if 0
static void
ddp_clean(void)
{
struct ddpcp *ddp;
for (ddp = ddpcb_list; ddp != NULL; ddp = ddp->ddp_next)
at_pcbdetach(ddp->ddp_socket, ddp);
DDP_LIST_LOCK_DESTROY();
}
#endif
static int
at_getpeeraddr(struct socket *so, struct sockaddr **nam)
{
return (EOPNOTSUPP);
}
static int
at_getsockaddr(struct socket *so, struct sockaddr **nam)
{
struct ddpcb *ddp;
ddp = sotoddpcb(so);
KASSERT(ddp != NULL, ("at_getsockaddr: ddp == NULL"));
DDP_LOCK(ddp);
at_sockaddr(ddp, nam);
DDP_UNLOCK(ddp);
return (0);
}
struct pr_usrreqs ddp_usrreqs = {
.pru_abort = ddp_abort,
.pru_attach = ddp_attach,
.pru_bind = ddp_bind,
.pru_connect = ddp_connect,
.pru_control = at_control,
.pru_detach = ddp_detach,
.pru_disconnect = ddp_disconnect,
.pru_peeraddr = at_getpeeraddr,
.pru_send = ddp_send,
.pru_shutdown = ddp_shutdown,
.pru_sockaddr = at_getsockaddr,
.pru_close = ddp_close,
};
