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/*
* Copyright (c) 2004 Robert N. M. Watson
* Copyright (c) 1990,1994 Regents of The University of Michigan.
* All Rights Reserved. See COPYRIGHT.
*
* $FreeBSD$
*/
#include <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 struct ifqueue atintrq1, atintrq2, aarpintrq;
static int
ddp_attach(struct socket *so, int proto, struct thread *td)
{
struct ddpcb *ddp;
int error = 0;
ddp = sotoddpcb(so);
if (ddp != NULL)
return (EINVAL);
/*
* 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 int
ddp_detach(struct socket *so)
{
struct ddpcb *ddp;
ddp = sotoddpcb(so);
if (ddp == NULL)
return (EINVAL);
DDP_LIST_XLOCK();
DDP_LOCK(ddp);
at_pcbdetach(so, ddp);
DDP_LIST_XUNLOCK();
return (0);
}
static int
ddp_bind(struct socket *so, struct sockaddr *nam, struct thread *td)
{
struct ddpcb *ddp;
int error = 0;
ddp = sotoddpcb(so);
if (ddp == NULL) {
return (EINVAL);
}
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);
if (ddp == NULL) {
return (EINVAL);
}
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);
if (ddp == NULL) {
return (EINVAL);
}
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)
{
struct ddpcb *ddp;
ddp = sotoddpcb(so);
if (ddp == NULL) {
return (EINVAL);
}
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);
if (ddp == NULL) {
return (EINVAL);
}
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);
}
static int
ddp_abort(struct socket *so)
{
struct ddpcb *ddp;
ddp = sotoddpcb(so);
if (ddp == NULL) {
return (EINVAL);
}
DDP_LIST_XLOCK();
DDP_LOCK(ddp);
at_pcbdetach(so, ddp);
DDP_LIST_XUNLOCK();
return (0);
}
void
ddp_init(void)
{
atintrq1.ifq_maxlen = IFQ_MAXLEN;
atintrq2.ifq_maxlen = IFQ_MAXLEN;
aarpintrq.ifq_maxlen = IFQ_MAXLEN;
mtx_init(&atintrq1.ifq_mtx, "at1_inq", NULL, MTX_DEF);
mtx_init(&atintrq2.ifq_mtx, "at2_inq", NULL, MTX_DEF);
mtx_init(&aarpintrq.ifq_mtx, "aarp_inq", NULL, MTX_DEF);
DDP_LIST_LOCK_INIT();
netisr_register(NETISR_ATALK1, at1intr, &atintrq1, 0);
netisr_register(NETISR_ATALK2, at2intr, &atintrq2, 0);
netisr_register(NETISR_AARP, aarpintr, &aarpintrq, 0);
}
#if 0
static void
ddp_clean(void)
{
struct ddpcb *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_setpeeraddr(struct socket *so, struct sockaddr **nam)
{
return (EOPNOTSUPP);
}
static int
at_setsockaddr(struct socket *so, struct sockaddr **nam)
{
struct ddpcb *ddp;
ddp = sotoddpcb(so);
if (ddp == NULL) {
return (EINVAL);
}
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_setpeeraddr,
.pru_send = ddp_send,
.pru_shutdown = ddp_shutdown,
.pru_sockaddr = at_setsockaddr,
};
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