1 /* net/atm/pvc.c - ATM PVC sockets */
3 /* Written 1995-2000 by Werner Almesberger, EPFL LRC/ICA */
6 #include <linux/config.h>
7 #include <linux/net.h> /* struct socket, struct net_proto,
9 #include <linux/atm.h> /* ATM stuff */
10 #include <linux/atmdev.h> /* ATM devices */
11 #include <linux/errno.h> /* error codes */
12 #include <linux/kernel.h> /* printk */
13 #include <linux/init.h>
14 #include <linux/skbuff.h>
15 #include <linux/bitops.h>
16 #include <net/sock.h> /* for sock_no_* */
18 #include "resources.h" /* devs and vccs */
19 #include "common.h" /* common for PVCs and SVCs */
22 static int pvc_shutdown(struct socket *sock,int how)
28 static int pvc_bind(struct socket *sock,struct sockaddr *sockaddr,
31 struct sock *sk = sock->sk;
32 struct sockaddr_atmpvc *addr;
36 if (sockaddr_len != sizeof(struct sockaddr_atmpvc)) return -EINVAL;
37 addr = (struct sockaddr_atmpvc *) sockaddr;
38 if (addr->sap_family != AF_ATMPVC) return -EAFNOSUPPORT;
41 if (!test_bit(ATM_VF_HASQOS, &vcc->flags)) {
45 if (test_bit(ATM_VF_PARTIAL,&vcc->flags)) {
46 if (vcc->vpi != ATM_VPI_UNSPEC) addr->sap_addr.vpi = vcc->vpi;
47 if (vcc->vci != ATM_VCI_UNSPEC) addr->sap_addr.vci = vcc->vci;
49 error = vcc_connect(sock, addr->sap_addr.itf, addr->sap_addr.vpi,
57 static int pvc_connect(struct socket *sock,struct sockaddr *sockaddr,
58 int sockaddr_len,int flags)
60 return pvc_bind(sock,sockaddr,sockaddr_len);
63 static int pvc_setsockopt(struct socket *sock, int level, int optname,
64 char *optval, int optlen)
66 struct sock *sk = sock->sk;
70 error = vcc_setsockopt(sock, level, optname, optval, optlen);
76 static int pvc_getsockopt(struct socket *sock, int level, int optname,
77 char *optval, int *optlen)
79 struct sock *sk = sock->sk;
83 error = vcc_getsockopt(sock, level, optname, optval, optlen);
89 static int pvc_getname(struct socket *sock,struct sockaddr *sockaddr,
90 int *sockaddr_len,int peer)
92 struct sockaddr_atmpvc *addr;
93 struct atm_vcc *vcc = ATM_SD(sock);
95 if (!vcc->dev || !test_bit(ATM_VF_ADDR,&vcc->flags)) return -ENOTCONN;
96 *sockaddr_len = sizeof(struct sockaddr_atmpvc);
97 addr = (struct sockaddr_atmpvc *) sockaddr;
98 addr->sap_family = AF_ATMPVC;
99 addr->sap_addr.itf = vcc->dev->number;
100 addr->sap_addr.vpi = vcc->vpi;
101 addr->sap_addr.vci = vcc->vci;
106 static struct proto_ops pvc_proto_ops = {
109 .release = vcc_release,
111 .connect = pvc_connect,
112 .socketpair = sock_no_socketpair,
113 .accept = sock_no_accept,
114 .getname = pvc_getname,
117 .listen = sock_no_listen,
118 .shutdown = pvc_shutdown,
119 .setsockopt = pvc_setsockopt,
120 .getsockopt = pvc_getsockopt,
121 .sendmsg = vcc_sendmsg,
122 .recvmsg = vcc_recvmsg,
123 .mmap = sock_no_mmap,
124 .sendpage = sock_no_sendpage,
128 static int pvc_create(struct socket *sock,int protocol)
130 sock->ops = &pvc_proto_ops;
131 return vcc_create(sock, protocol, PF_ATMPVC);
135 static struct net_proto_family pvc_family_ops = {
138 0, /* no authentication */
139 0, /* no encryption */
140 0 /* no encrypt_net */
145 * Initialize the ATM PVC protocol family
149 int atmpvc_init(void)
151 return sock_register(&pvc_family_ops);
154 void atmpvc_exit(void)
156 sock_unregister(PF_ATMPVC);