freebsd-dev/sys/netatalk/ddp_usrreq.c

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/*
* 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>
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#include <netatalk/at.h>
#include <netatalk/at_var.h>
#include <netatalk/ddp_var.h>
#include <netatalk/ddp_pcb.h>
#include <netatalk/at_extern.h>
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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;
int s;
ddp = sotoddpcb(so);
if (ddp != NULL) {
return (EINVAL);
}
s = splnet();
error = at_pcballoc(so);
splx(s);
if (error) {
return (error);
}
return (soreserve(so, ddp_sendspace, ddp_recvspace));
}
static int
ddp_detach(struct socket *so)
{
struct ddpcb *ddp;
int s;
ddp = sotoddpcb(so);
if (ddp == NULL) {
return (EINVAL);
}
s = splnet();
at_pcbdetach(so, ddp);
splx(s);
return (0);
}
static int
ddp_bind(struct socket *so, struct sockaddr *nam, struct thread *td)
{
struct ddpcb *ddp;
int error = 0;
int s;
ddp = sotoddpcb(so);
if (ddp == NULL) {
return (EINVAL);
}
s = splnet();
error = at_pcbsetaddr(ddp, nam, td);
splx(s);
return (error);
}
static int
ddp_connect(struct socket *so, struct sockaddr *nam, struct thread *td)
{
struct ddpcb *ddp;
int error = 0;
int s;
ddp = sotoddpcb(so);
if (ddp == NULL) {
return (EINVAL);
}
if (ddp->ddp_fsat.sat_port != ATADDR_ANYPORT) {
return (EISCONN);
}
s = splnet();
error = at_pcbconnect(ddp, nam, td);
splx(s);
if (error == 0)
soisconnected(so);
return (error);
}
static int
ddp_disconnect(struct socket *so)
{
struct ddpcb *ddp;
int s;
ddp = sotoddpcb(so);
if (ddp == NULL) {
return (EINVAL);
}
if (ddp->ddp_fsat.sat_addr.s_node == ATADDR_ANYNODE) {
return (ENOTCONN);
}
s = splnet();
at_pcbdisconnect(ddp);
ddp->ddp_fsat.sat_addr.s_node = ATADDR_ANYNODE;
splx(s);
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;
int s;
ddp = sotoddpcb(so);
if (ddp == NULL) {
return (EINVAL);
}
if (control && control->m_len) {
return (EINVAL);
}
if (addr != NULL) {
if (ddp->ddp_fsat.sat_port != ATADDR_ANYPORT) {
return (EISCONN);
}
s = splnet();
error = at_pcbconnect(ddp, addr, td);
splx(s);
if (error) {
return (error);
}
} else {
if (ddp->ddp_fsat.sat_port == ATADDR_ANYPORT) {
return (ENOTCONN);
}
}
s = splnet();
error = ddp_output(m, so);
if (addr != NULL) {
at_pcbdisconnect(ddp);
}
splx(s);
return (error);
}
static int
ddp_abort(struct socket *so)
{
struct ddpcb *ddp;
int s;
ddp = sotoddpcb(so);
if (ddp == NULL) {
return (EINVAL);
}
s = splnet();
at_pcbdetach(so, ddp);
splx(s);
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);
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);
}
}
#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);
}
at_sockaddr(ddp, nam);
return (0);
}
struct pr_usrreqs ddp_usrreqs = {
ddp_abort,
pru_accept_notsupp,
ddp_attach,
ddp_bind,
ddp_connect,
pru_connect2_notsupp,
at_control,
ddp_detach,
ddp_disconnect,
pru_listen_notsupp,
at_setpeeraddr,
pru_rcvd_notsupp,
pru_rcvoob_notsupp,
ddp_send,
pru_sense_null,
ddp_shutdown,
at_setsockaddr,
sosend,
soreceive,
sopoll,
pru_sosetlabel_null
};