/* net/atm/pvc.c - ATM PVC sockets *//* Written 1995-2000 by Werner Almesberger, EPFL LRC/ICA */#include <linux/config.h>#include <linux/net.h>		/* struct socket, struct net_proto,				   struct proto_ops */#include <linux/atm.h>		/* ATM stuff */#include <linux/atmdev.h>	/* ATM devices */#include <linux/atmclip.h>	/* Classical IP over ATM */#include <linux/errno.h>	/* error codes */#include <linux/kernel.h>	/* printk */#include <linux/init.h>#include <linux/skbuff.h>#include <linux/bitops.h>#include <net/sock.h>		/* for sock_no_* */#ifdef CONFIG_ATM_CLIP#include <net/atmclip.h>#endif#include "resources.h"		/* devs and vccs */#include "common.h"		/* common for PVCs and SVCs */#ifndef NULL#define NULL 0#endifstatic int pvc_shutdown(struct socket *sock,int how){	return 0;}static int pvc_bind(struct socket *sock,struct sockaddr *sockaddr,    int sockaddr_len){	struct sockaddr_atmpvc *addr;	struct atm_vcc *vcc;	if (sockaddr_len != sizeof(struct sockaddr_atmpvc)) return -EINVAL;	addr = (struct sockaddr_atmpvc *) sockaddr;	if (addr->sap_family != AF_ATMPVC) return -EAFNOSUPPORT;	vcc = ATM_SD(sock);	if (!test_bit(ATM_VF_HASQOS,&vcc->flags)) return -EBADFD;	if (test_bit(ATM_VF_PARTIAL,&vcc->flags)) {		if (vcc->vpi != ATM_VPI_UNSPEC) addr->sap_addr.vpi = vcc->vpi;		if (vcc->vci != ATM_VCI_UNSPEC) addr->sap_addr.vci = vcc->vci;	}	return atm_connect(sock,addr->sap_addr.itf,addr->sap_addr.vpi,	    addr->sap_addr.vci);}static int pvc_connect(struct socket *sock,struct sockaddr *sockaddr,    int sockaddr_len,int flags){	return pvc_bind(sock,sockaddr,sockaddr_len);}static int pvc_getname(struct socket *sock,struct sockaddr *sockaddr,    int *sockaddr_len,int peer){	struct sockaddr_atmpvc *addr;	struct atm_vcc *vcc = ATM_SD(sock);	if (!vcc->dev || !test_bit(ATM_VF_ADDR,&vcc->flags)) return -ENOTCONN;        *sockaddr_len = sizeof(struct sockaddr_atmpvc);	addr = (struct sockaddr_atmpvc *) sockaddr;	addr->sap_family = AF_ATMPVC;	addr->sap_addr.itf = vcc->dev->number;	addr->sap_addr.vpi = vcc->vpi;	addr->sap_addr.vci = vcc->vci;	return 0;}static struct proto_ops SOCKOPS_WRAPPED(pvc_proto_ops) = {	family:		PF_ATMPVC,	release:	atm_release,	bind:		pvc_bind,	connect:	pvc_connect,	socketpair:	sock_no_socketpair,	accept:		sock_no_accept,	getname:	pvc_getname,	poll:		atm_poll,	ioctl:		atm_ioctl,	listen:		sock_no_listen,	shutdown:	pvc_shutdown,	setsockopt:	atm_setsockopt,	getsockopt:	atm_getsockopt,	sendmsg:	atm_sendmsg,	recvmsg:	atm_recvmsg,	mmap:		sock_no_mmap,	sendpage:	sock_no_sendpage,};#include <linux/smp_lock.h>SOCKOPS_WRAP(pvc_proto, PF_ATMPVC);static int pvc_create(struct socket *sock,int protocol){	sock->ops = &pvc_proto_ops;	return atm_create(sock,protocol,PF_ATMPVC);}static struct net_proto_family pvc_family_ops = {	PF_ATMPVC,	pvc_create,	0,			/* no authentication */	0,			/* no encryption */	0			/* no encrypt_net */};/* *	Initialize the ATM PVC protocol family */static int __init atmpvc_init(void){	int error;	error = sock_register(&pvc_family_ops);	if (error < 0) {		printk(KERN_ERR "ATMPVC: can't register (%d)",error);		return error;	}#ifdef CONFIG_ATM_CLIP	atm_clip_init();#endif#ifdef CONFIG_PROC_FS	error = atm_proc_init();	if (error) printk("atm_proc_init fails with %d\n",error);#endif	return 0;}module_init(atmpvc_init);