svc.c revision 17b24b3c97498935a2ef9777370b1151dfed3f6f
11da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* net/atm/svc.c - ATM SVC sockets */ 21da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 31da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Written 1995-2000 by Werner Almesberger, EPFL LRC/ICA */ 41da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 51da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 61da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/string.h> 71da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/net.h> /* struct socket, struct proto_ops */ 81da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/errno.h> /* error codes */ 91da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/kernel.h> /* printk */ 101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/skbuff.h> 111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/wait.h> 121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/sched.h> /* jiffies and HZ */ 131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/fcntl.h> /* O_NONBLOCK */ 141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/init.h> 151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/atm.h> /* ATM stuff */ 161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/atmsap.h> 171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/atmsvc.h> 181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/atmdev.h> 191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/bitops.h> 201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <net/sock.h> /* for sock_no_* */ 211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/uaccess.h> 221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "resources.h" 241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "common.h" /* common for PVCs and SVCs */ 251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "signaling.h" 261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "addr.h" 271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 281b8d7ae42d02e483ad94035cca851e4f7fbecb40Eric W. Biedermanstatic int svc_create(struct net *net, struct socket *sock,int protocol); 291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Note: since all this is still nicely synchronized with the signaling demon, 321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * there's no need to protect sleep loops with clis. If signaling is 331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * moved into the kernel, that would change. 341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int svc_shutdown(struct socket *sock,int how) 381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void svc_disconnect(struct atm_vcc *vcc) 441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds DEFINE_WAIT(wait); 461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct sk_buff *skb; 471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct sock *sk = sk_atm(vcc); 481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 49522400623e240ad134cb4101b1fddc3245d2a7edStephen Hemminger pr_debug("svc_disconnect %p\n",vcc); 501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (test_bit(ATM_VF_REGIS,&vcc->flags)) { 511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds prepare_to_wait(sk->sk_sleep, &wait, TASK_UNINTERRUPTIBLE); 521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sigd_enq(vcc,as_close,NULL,NULL,NULL); 531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (!test_bit(ATM_VF_RELEASED,&vcc->flags) && sigd) { 541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds schedule(); 551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds prepare_to_wait(sk->sk_sleep, &wait, TASK_UNINTERRUPTIBLE); 561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds finish_wait(sk->sk_sleep, &wait); 581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* beware - socket is still in use by atmsigd until the last 601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds as_indicate has been answered */ 611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while ((skb = skb_dequeue(&sk->sk_receive_queue)) != NULL) { 621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atm_return(vcc, skb->truesize); 63522400623e240ad134cb4101b1fddc3245d2a7edStephen Hemminger pr_debug("LISTEN REL\n"); 641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sigd_enq2(NULL,as_reject,vcc,NULL,NULL,&vcc->qos,0); 651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev_kfree_skb(skb); 661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds clear_bit(ATM_VF_REGIS, &vcc->flags); 681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* ... may retry later */ 691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int svc_release(struct socket *sock) 731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct sock *sk = sock->sk; 751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct atm_vcc *vcc; 761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (sk) { 781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds vcc = ATM_SD(sock); 79522400623e240ad134cb4101b1fddc3245d2a7edStephen Hemminger pr_debug("svc_release %p\n", vcc); 801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds clear_bit(ATM_VF_READY, &vcc->flags); 811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* VCC pointer is used as a reference, so we must not free it 821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (thereby subjecting it to re-use) before all pending connections 83f7d57453d20e27de69ecafd121005e9d13a0f427YOSHIFUJI Hideaki are closed */ 841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds svc_disconnect(vcc); 851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds vcc_release(sock); 861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int svc_bind(struct socket *sock,struct sockaddr *sockaddr, 921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int sockaddr_len) 931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds DEFINE_WAIT(wait); 951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct sock *sk = sock->sk; 961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct sockaddr_atmsvc *addr; 971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct atm_vcc *vcc; 981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int error; 991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (sockaddr_len != sizeof(struct sockaddr_atmsvc)) 1011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 1021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds lock_sock(sk); 1031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (sock->state == SS_CONNECTED) { 1041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -EISCONN; 1051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 1061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (sock->state != SS_UNCONNECTED) { 1081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -EINVAL; 1091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 1101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds vcc = ATM_SD(sock); 1121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds addr = (struct sockaddr_atmsvc *) sockaddr; 1131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (addr->sas_family != AF_ATMSVC) { 1141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -EAFNOSUPPORT; 1151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 1161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds clear_bit(ATM_VF_BOUND,&vcc->flags); 1181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* failing rebind will kill old binding */ 1191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* @@@ check memory (de)allocation on rebind */ 1201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!test_bit(ATM_VF_HASQOS,&vcc->flags)) { 1211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -EBADFD; 1221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 1231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds vcc->local = *addr; 1251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds set_bit(ATM_VF_WAITING, &vcc->flags); 1261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds prepare_to_wait(sk->sk_sleep, &wait, TASK_UNINTERRUPTIBLE); 1271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sigd_enq(vcc,as_bind,NULL,NULL,&vcc->local); 1281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (test_bit(ATM_VF_WAITING, &vcc->flags) && sigd) { 1291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds schedule(); 1301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds prepare_to_wait(sk->sk_sleep, &wait, TASK_UNINTERRUPTIBLE); 1311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds finish_wait(sk->sk_sleep, &wait); 1331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds clear_bit(ATM_VF_REGIS,&vcc->flags); /* doesn't count */ 1341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!sigd) { 1351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -EUNATCH; 1361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 1371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 138f7d57453d20e27de69ecafd121005e9d13a0f427YOSHIFUJI Hideaki if (!sk->sk_err) 1391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds set_bit(ATM_VF_BOUND,&vcc->flags); 1401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -sk->sk_err; 1411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsout: 1421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds release_sock(sk); 1431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return error; 1441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int svc_connect(struct socket *sock,struct sockaddr *sockaddr, 1481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int sockaddr_len,int flags) 1491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds DEFINE_WAIT(wait); 1511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct sock *sk = sock->sk; 1521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct sockaddr_atmsvc *addr; 1531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct atm_vcc *vcc = ATM_SD(sock); 1541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int error; 1551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 156522400623e240ad134cb4101b1fddc3245d2a7edStephen Hemminger pr_debug("svc_connect %p\n",vcc); 1571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds lock_sock(sk); 1581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (sockaddr_len != sizeof(struct sockaddr_atmsvc)) { 1591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -EINVAL; 1601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 1611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (sock->state) { 1641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 1651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -EINVAL; 1661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 1671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case SS_CONNECTED: 1681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -EISCONN; 1691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 1701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case SS_CONNECTING: 1711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (test_bit(ATM_VF_WAITING, &vcc->flags)) { 1721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -EALREADY; 1731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 1741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sock->state = SS_UNCONNECTED; 1761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (sk->sk_err) { 1771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -sk->sk_err; 1781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 1791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 1811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case SS_UNCONNECTED: 1821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds addr = (struct sockaddr_atmsvc *) sockaddr; 1831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (addr->sas_family != AF_ATMSVC) { 1841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -EAFNOSUPPORT; 1851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 1861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!test_bit(ATM_VF_HASQOS, &vcc->flags)) { 1881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -EBADFD; 1891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 1901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (vcc->qos.txtp.traffic_class == ATM_ANYCLASS || 1921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds vcc->qos.rxtp.traffic_class == ATM_ANYCLASS) { 1931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -EINVAL; 1941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 1951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!vcc->qos.txtp.traffic_class && 1971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds !vcc->qos.rxtp.traffic_class) { 1981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -EINVAL; 1991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 2001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds vcc->remote = *addr; 2021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds set_bit(ATM_VF_WAITING, &vcc->flags); 2031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds prepare_to_wait(sk->sk_sleep, &wait, TASK_INTERRUPTIBLE); 2041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sigd_enq(vcc,as_connect,NULL,NULL,&vcc->remote); 2051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (flags & O_NONBLOCK) { 2061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds finish_wait(sk->sk_sleep, &wait); 2071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sock->state = SS_CONNECTING; 2081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -EINPROGRESS; 2091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 2101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = 0; 2121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (test_bit(ATM_VF_WAITING, &vcc->flags) && sigd) { 2131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds schedule(); 2141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!signal_pending(current)) { 2151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds prepare_to_wait(sk->sk_sleep, &wait, TASK_INTERRUPTIBLE); 2161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 2171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 218522400623e240ad134cb4101b1fddc3245d2a7edStephen Hemminger pr_debug("*ABORT*\n"); 2191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 2201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This is tricky: 2211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Kernel ---close--> Demon 2221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Kernel <--close--- Demon 223f7d57453d20e27de69ecafd121005e9d13a0f427YOSHIFUJI Hideaki * or 2241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Kernel ---close--> Demon 2251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Kernel <--error--- Demon 2261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * or 2271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Kernel ---close--> Demon 2281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Kernel <--okay---- Demon 2291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Kernel <--close--- Demon 2301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sigd_enq(vcc,as_close,NULL,NULL,NULL); 2321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (test_bit(ATM_VF_WAITING, &vcc->flags) && sigd) { 2331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds prepare_to_wait(sk->sk_sleep, &wait, TASK_INTERRUPTIBLE); 2341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds schedule(); 2351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!sk->sk_err) 2371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (!test_bit(ATM_VF_RELEASED,&vcc->flags) 2381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds && sigd) { 2391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds prepare_to_wait(sk->sk_sleep, &wait, TASK_INTERRUPTIBLE); 2401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds schedule(); 2411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds clear_bit(ATM_VF_REGIS,&vcc->flags); 2431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds clear_bit(ATM_VF_RELEASED,&vcc->flags); 2441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds clear_bit(ATM_VF_CLOSE,&vcc->flags); 2451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* we're gone now but may connect later */ 2461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -EINTR; 2471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds finish_wait(sk->sk_sleep, &wait); 2501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (error) 2511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 2521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!sigd) { 2531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -EUNATCH; 2541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 2551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (sk->sk_err) { 2571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -sk->sk_err; 2581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 2591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Not supported yet 2631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * #ifndef CONFIG_SINGLE_SIGITF 2651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds vcc->qos.txtp.max_pcr = SELECT_TOP_PCR(vcc->qos.txtp); 2671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds vcc->qos.txtp.pcr = 0; 2681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds vcc->qos.txtp.min_pcr = 0; 2691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * #endif 2711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!(error = vcc_connect(sock, vcc->itf, vcc->vpi, vcc->vci))) 2731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sock->state = SS_CONNECTED; 2741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 2751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (void) svc_disconnect(vcc); 2761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsout: 2771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds release_sock(sk); 2781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return error; 2791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int svc_listen(struct socket *sock,int backlog) 2831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds DEFINE_WAIT(wait); 2851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct sock *sk = sock->sk; 2861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct atm_vcc *vcc = ATM_SD(sock); 2871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int error; 2881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 289522400623e240ad134cb4101b1fddc3245d2a7edStephen Hemminger pr_debug("svc_listen %p\n",vcc); 2901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds lock_sock(sk); 2911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* let server handle listen on unbound sockets */ 2921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (test_bit(ATM_VF_SESSION,&vcc->flags)) { 2931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -EINVAL; 2941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 2951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 29617b24b3c97498935a2ef9777370b1151dfed3f6fChas Williams if (test_bit(ATM_VF_LISTEN, &vcc->flags)) { 29717b24b3c97498935a2ef9777370b1151dfed3f6fChas Williams error = -EADDRINUSE; 29817b24b3c97498935a2ef9777370b1151dfed3f6fChas Williams goto out; 29917b24b3c97498935a2ef9777370b1151dfed3f6fChas Williams } 3001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds set_bit(ATM_VF_WAITING, &vcc->flags); 3011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds prepare_to_wait(sk->sk_sleep, &wait, TASK_UNINTERRUPTIBLE); 3021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sigd_enq(vcc,as_listen,NULL,NULL,&vcc->local); 3031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (test_bit(ATM_VF_WAITING, &vcc->flags) && sigd) { 3041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds schedule(); 3051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds prepare_to_wait(sk->sk_sleep, &wait, TASK_UNINTERRUPTIBLE); 3061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds finish_wait(sk->sk_sleep, &wait); 3081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!sigd) { 3091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -EUNATCH; 3101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 3111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds set_bit(ATM_VF_LISTEN,&vcc->flags); 31317b24b3c97498935a2ef9777370b1151dfed3f6fChas Williams vcc_insert_socket(sk); 3141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sk->sk_max_ack_backlog = backlog > 0 ? backlog : ATM_BACKLOG_DEFAULT; 3151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -sk->sk_err; 3161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsout: 3171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds release_sock(sk); 3181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return error; 3191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int svc_accept(struct socket *sock,struct socket *newsock,int flags) 3231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct sock *sk = sock->sk; 3251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct sk_buff *skb; 3261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct atmsvc_msg *msg; 3271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct atm_vcc *old_vcc = ATM_SD(sock); 3281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct atm_vcc *new_vcc; 3291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int error; 3301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds lock_sock(sk); 3321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3333b1e0a655f8eba44ab1ee2a1068d169ccfb853b9YOSHIFUJI Hideaki error = svc_create(sock_net(sk), newsock,0); 3341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (error) 3351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 3361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds new_vcc = ATM_SD(newsock); 3381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 339522400623e240ad134cb4101b1fddc3245d2a7edStephen Hemminger pr_debug("svc_accept %p -> %p\n",old_vcc,new_vcc); 3401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (1) { 3411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds DEFINE_WAIT(wait); 3421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds prepare_to_wait(sk->sk_sleep, &wait, TASK_INTERRUPTIBLE); 3441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (!(skb = skb_dequeue(&sk->sk_receive_queue)) && 3451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sigd) { 3461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (test_bit(ATM_VF_RELEASED,&old_vcc->flags)) break; 3471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (test_bit(ATM_VF_CLOSE,&old_vcc->flags)) { 3481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -sk->sk_err; 3491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 3501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (flags & O_NONBLOCK) { 3521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -EAGAIN; 3531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 3541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds release_sock(sk); 3561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds schedule(); 3571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds lock_sock(sk); 3581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (signal_pending(current)) { 3591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -ERESTARTSYS; 3601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 3611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds prepare_to_wait(sk->sk_sleep, &wait, TASK_INTERRUPTIBLE); 3631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds finish_wait(sk->sk_sleep, &wait); 3651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (error) 3661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 3671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!skb) { 3681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -EUNATCH; 3691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 3701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds msg = (struct atmsvc_msg *) skb->data; 3721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds new_vcc->qos = msg->qos; 3731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds set_bit(ATM_VF_HASQOS,&new_vcc->flags); 3741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds new_vcc->remote = msg->svc; 3751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds new_vcc->local = msg->local; 3761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds new_vcc->sap = msg->sap; 3771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = vcc_connect(newsock, msg->pvc.sap_addr.itf, 3781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds msg->pvc.sap_addr.vpi, msg->pvc.sap_addr.vci); 3791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev_kfree_skb(skb); 3801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sk->sk_ack_backlog--; 3811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (error) { 3821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sigd_enq2(NULL,as_reject,old_vcc,NULL,NULL, 3831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &old_vcc->qos,error); 3841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = error == -EAGAIN ? -EBUSY : error; 3851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 3861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* wait should be short, so we ignore the non-blocking flag */ 3881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds set_bit(ATM_VF_WAITING, &new_vcc->flags); 3891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds prepare_to_wait(sk_atm(new_vcc)->sk_sleep, &wait, TASK_UNINTERRUPTIBLE); 3901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sigd_enq(new_vcc,as_accept,old_vcc,NULL,NULL); 3911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (test_bit(ATM_VF_WAITING, &new_vcc->flags) && sigd) { 3921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds release_sock(sk); 3931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds schedule(); 3941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds lock_sock(sk); 3951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds prepare_to_wait(sk_atm(new_vcc)->sk_sleep, &wait, TASK_UNINTERRUPTIBLE); 3961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds finish_wait(sk_atm(new_vcc)->sk_sleep, &wait); 3981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!sigd) { 3991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -EUNATCH; 4001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 4011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!sk_atm(new_vcc)->sk_err) 4031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 4041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (sk_atm(new_vcc)->sk_err != ERESTARTSYS) { 4051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -sk_atm(new_vcc)->sk_err; 4061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 4071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds newsock->state = SS_CONNECTED; 4101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsout: 4111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds release_sock(sk); 4121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return error; 4131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int svc_getname(struct socket *sock,struct sockaddr *sockaddr, 4171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int *sockaddr_len,int peer) 4181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 4191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct sockaddr_atmsvc *addr; 4201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *sockaddr_len = sizeof(struct sockaddr_atmsvc); 4221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds addr = (struct sockaddr_atmsvc *) sockaddr; 4231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memcpy(addr,peer ? &ATM_SD(sock)->remote : &ATM_SD(sock)->local, 4241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sizeof(struct sockaddr_atmsvc)); 4251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 4261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint svc_change_qos(struct atm_vcc *vcc,struct atm_qos *qos) 4301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 4311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct sock *sk = sk_atm(vcc); 4321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds DEFINE_WAIT(wait); 4331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds set_bit(ATM_VF_WAITING, &vcc->flags); 4351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds prepare_to_wait(sk->sk_sleep, &wait, TASK_UNINTERRUPTIBLE); 4361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sigd_enq2(vcc,as_modify,NULL,NULL,&vcc->local,qos,0); 4371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (test_bit(ATM_VF_WAITING, &vcc->flags) && 4381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds !test_bit(ATM_VF_RELEASED, &vcc->flags) && sigd) { 4391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds schedule(); 4401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds prepare_to_wait(sk->sk_sleep, &wait, TASK_UNINTERRUPTIBLE); 4411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds finish_wait(sk->sk_sleep, &wait); 4431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!sigd) return -EUNATCH; 4441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -sk->sk_err; 4451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int svc_setsockopt(struct socket *sock, int level, int optname, 4491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char __user *optval, int optlen) 4501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 4511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct sock *sk = sock->sk; 4521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct atm_vcc *vcc = ATM_SD(sock); 4531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int value, error = 0; 4541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds lock_sock(sk); 4561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (optname) { 4571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case SO_ATMSAP: 4581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (level != SOL_ATM || optlen != sizeof(struct atm_sap)) { 4591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -EINVAL; 4601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 4611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (copy_from_user(&vcc->sap, optval, optlen)) { 4631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -EFAULT; 4641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 4651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds set_bit(ATM_VF_HASSAP, &vcc->flags); 4671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 468f7d57453d20e27de69ecafd121005e9d13a0f427YOSHIFUJI Hideaki case SO_MULTIPOINT: 4691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (level != SOL_ATM || optlen != sizeof(int)) { 4701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -EINVAL; 4711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 4721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 473f7d57453d20e27de69ecafd121005e9d13a0f427YOSHIFUJI Hideaki if (get_user(value, (int __user *) optval)) { 474f7d57453d20e27de69ecafd121005e9d13a0f427YOSHIFUJI Hideaki error = -EFAULT; 4751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 4761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (value == 1) { 4781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds set_bit(ATM_VF_SESSION, &vcc->flags); 4791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else if (value == 0) { 4801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds clear_bit(ATM_VF_SESSION, &vcc->flags); 4811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 4821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -EINVAL; 4831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 484f7d57453d20e27de69ecafd121005e9d13a0f427YOSHIFUJI Hideaki break; 4851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 4861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = vcc_setsockopt(sock, level, optname, 4871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds optval, optlen); 4881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsout: 4911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds release_sock(sk); 4921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return error; 4931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int svc_getsockopt(struct socket *sock,int level,int optname, 4971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char __user *optval,int __user *optlen) 4981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 4991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct sock *sk = sock->sk; 5001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int error = 0, len; 5011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds lock_sock(sk); 5031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!__SO_LEVEL_MATCH(optname, level) || optname != SO_ATMSAP) { 5041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = vcc_getsockopt(sock, level, optname, optval, optlen); 5051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 5061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (get_user(len, optlen)) { 5081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -EFAULT; 5091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 5101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (len != sizeof(struct atm_sap)) { 5121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -EINVAL; 5131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 5141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (copy_to_user(optval, &ATM_SD(sock)->sap, sizeof(struct atm_sap))) { 5161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -EFAULT; 5171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 5181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsout: 5201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds release_sock(sk); 5211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return error; 5221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int svc_addparty(struct socket *sock, struct sockaddr *sockaddr, 5261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int sockaddr_len, int flags) 5271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds DEFINE_WAIT(wait); 5291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct sock *sk = sock->sk; 5301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct atm_vcc *vcc = ATM_SD(sock); 5311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int error; 5321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds lock_sock(sk); 5341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds set_bit(ATM_VF_WAITING, &vcc->flags); 5351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds prepare_to_wait(sk->sk_sleep, &wait, TASK_INTERRUPTIBLE); 5361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sigd_enq(vcc, as_addparty, NULL, NULL, 537f7d57453d20e27de69ecafd121005e9d13a0f427YOSHIFUJI Hideaki (struct sockaddr_atmsvc *) sockaddr); 5381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (flags & O_NONBLOCK) { 5391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds finish_wait(sk->sk_sleep, &wait); 5401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -EINPROGRESS; 5411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 5421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 543522400623e240ad134cb4101b1fddc3245d2a7edStephen Hemminger pr_debug("svc_addparty added wait queue\n"); 5441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (test_bit(ATM_VF_WAITING, &vcc->flags) && sigd) { 5451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds schedule(); 5461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds prepare_to_wait(sk->sk_sleep, &wait, TASK_INTERRUPTIBLE); 5471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds finish_wait(sk->sk_sleep, &wait); 5491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = xchg(&sk->sk_err_soft, 0); 5501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsout: 5511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds release_sock(sk); 5521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return error; 5531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int svc_dropparty(struct socket *sock, int ep_ref) 5571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds DEFINE_WAIT(wait); 5591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct sock *sk = sock->sk; 5601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct atm_vcc *vcc = ATM_SD(sock); 5611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int error; 5621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds lock_sock(sk); 5641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds set_bit(ATM_VF_WAITING, &vcc->flags); 5651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds prepare_to_wait(sk->sk_sleep, &wait, TASK_INTERRUPTIBLE); 5661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sigd_enq2(vcc, as_dropparty, NULL, NULL, NULL, NULL, ep_ref); 5671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (test_bit(ATM_VF_WAITING, &vcc->flags) && sigd) { 5681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds schedule(); 5691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds prepare_to_wait(sk->sk_sleep, &wait, TASK_INTERRUPTIBLE); 5701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds finish_wait(sk->sk_sleep, &wait); 5721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!sigd) { 5731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -EUNATCH; 5741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 5751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = xchg(&sk->sk_err_soft, 0); 5771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsout: 5781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds release_sock(sk); 5791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return error; 5801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int svc_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) 5841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 585f7d57453d20e27de69ecafd121005e9d13a0f427YOSHIFUJI Hideaki int error, ep_ref; 586f7d57453d20e27de69ecafd121005e9d13a0f427YOSHIFUJI Hideaki struct sockaddr_atmsvc sa; 5871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct atm_vcc *vcc = ATM_SD(sock); 588f7d57453d20e27de69ecafd121005e9d13a0f427YOSHIFUJI Hideaki 5891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (cmd) { 590f7d57453d20e27de69ecafd121005e9d13a0f427YOSHIFUJI Hideaki case ATM_ADDPARTY: 591f7d57453d20e27de69ecafd121005e9d13a0f427YOSHIFUJI Hideaki if (!test_bit(ATM_VF_SESSION, &vcc->flags)) 592f7d57453d20e27de69ecafd121005e9d13a0f427YOSHIFUJI Hideaki return -EINVAL; 593f7d57453d20e27de69ecafd121005e9d13a0f427YOSHIFUJI Hideaki if (copy_from_user(&sa, (void __user *) arg, sizeof(sa))) 5941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 595f7d57453d20e27de69ecafd121005e9d13a0f427YOSHIFUJI Hideaki error = svc_addparty(sock, (struct sockaddr *) &sa, sizeof(sa), 0); 596f7d57453d20e27de69ecafd121005e9d13a0f427YOSHIFUJI Hideaki break; 597f7d57453d20e27de69ecafd121005e9d13a0f427YOSHIFUJI Hideaki case ATM_DROPPARTY: 598f7d57453d20e27de69ecafd121005e9d13a0f427YOSHIFUJI Hideaki if (!test_bit(ATM_VF_SESSION, &vcc->flags)) 599f7d57453d20e27de69ecafd121005e9d13a0f427YOSHIFUJI Hideaki return -EINVAL; 600f7d57453d20e27de69ecafd121005e9d13a0f427YOSHIFUJI Hideaki if (copy_from_user(&ep_ref, (void __user *) arg, sizeof(int))) 6011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 602f7d57453d20e27de69ecafd121005e9d13a0f427YOSHIFUJI Hideaki error = svc_dropparty(sock, ep_ref); 603f7d57453d20e27de69ecafd121005e9d13a0f427YOSHIFUJI Hideaki break; 604f7d57453d20e27de69ecafd121005e9d13a0f427YOSHIFUJI Hideaki default: 6051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = vcc_ioctl(sock, cmd, arg); 6061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return error; 6091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 61190ddc4f0470427df306f308ad03db6b6b21644b8Eric Dumazetstatic const struct proto_ops svc_proto_ops = { 6121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .family = PF_ATMSVC, 6131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .owner = THIS_MODULE, 6141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .release = svc_release, 6161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .bind = svc_bind, 6171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .connect = svc_connect, 6181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .socketpair = sock_no_socketpair, 6191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .accept = svc_accept, 6201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .getname = svc_getname, 6211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .poll = vcc_poll, 6221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .ioctl = svc_ioctl, 6231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .listen = svc_listen, 6241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .shutdown = svc_shutdown, 6251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .setsockopt = svc_setsockopt, 6261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .getsockopt = svc_getsockopt, 6271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .sendmsg = vcc_sendmsg, 6281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .recvmsg = vcc_recvmsg, 6291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .mmap = sock_no_mmap, 6301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .sendpage = sock_no_sendpage, 6311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 6321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6341b8d7ae42d02e483ad94035cca851e4f7fbecb40Eric W. Biedermanstatic int svc_create(struct net *net, struct socket *sock,int protocol) 6351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int error; 6371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6381b8d7ae42d02e483ad94035cca851e4f7fbecb40Eric W. Biederman if (net != &init_net) 6391b8d7ae42d02e483ad94035cca851e4f7fbecb40Eric W. Biederman return -EAFNOSUPPORT; 6401b8d7ae42d02e483ad94035cca851e4f7fbecb40Eric W. Biederman 6411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sock->ops = &svc_proto_ops; 6421b8d7ae42d02e483ad94035cca851e4f7fbecb40Eric W. Biederman error = vcc_create(net, sock, protocol, AF_ATMSVC); 6431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (error) return error; 6441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ATM_SD(sock)->local.sas_family = AF_ATMSVC; 6451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ATM_SD(sock)->remote.sas_family = AF_ATMSVC; 6461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 6471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct net_proto_family svc_family_ops = { 6511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .family = PF_ATMSVC, 6521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .create = svc_create, 6531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .owner = THIS_MODULE, 6541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 6551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 6581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Initialize the ATM SVC protocol family 6591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint __init atmsvc_init(void) 6621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return sock_register(&svc_family_ops); 6641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid atmsvc_exit(void) 6671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sock_unregister(PF_ATMSVC); 6691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 670