11da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* net/atm/svc.c - ATM SVC sockets */ 21da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 31da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Written 1995-2000 by Werner Almesberger, EPFL LRC/ICA */ 41da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 599824461ea72ca0044cc6508f02c0e1cabf37ba5Joe Perches#define pr_fmt(fmt) KBUILD_MODNAME ":%s: " fmt, __func__ 61da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 71da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/string.h> 81da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/net.h> /* struct socket, struct proto_ops */ 91da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/errno.h> /* error codes */ 101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/kernel.h> /* printk */ 111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/skbuff.h> 121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/wait.h> 131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/sched.h> /* jiffies and HZ */ 141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/fcntl.h> /* O_NONBLOCK */ 151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/init.h> 161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/atm.h> /* ATM stuff */ 171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/atmsap.h> 181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/atmsvc.h> 191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/atmdev.h> 201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/bitops.h> 211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <net/sock.h> /* for sock_no_* */ 22b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches#include <linux/uaccess.h> 23bc3b2d7fb9b014d75ebb79ba371a763dbab5e8cfPaul Gortmaker#include <linux/export.h> 241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "resources.h" 261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "common.h" /* common for PVCs and SVCs */ 271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "signaling.h" 281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "addr.h" 291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 30b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perchesstatic int svc_create(struct net *net, struct socket *sock, int protocol, 31b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches int kern); 321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Note: since all this is still nicely synchronized with the signaling demon, 351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * there's no need to protect sleep loops with clis. If signaling is 361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * moved into the kernel, that would change. 371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 40b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perchesstatic int svc_shutdown(struct socket *sock, int how) 411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void svc_disconnect(struct atm_vcc *vcc) 461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds DEFINE_WAIT(wait); 481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct sk_buff *skb; 491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct sock *sk = sk_atm(vcc); 501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 51b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches pr_debug("%p\n", vcc); 52b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches if (test_bit(ATM_VF_REGIS, &vcc->flags)) { 53b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches sigd_enq(vcc, as_close, NULL, NULL, NULL); 54de713b57947a7a1b9cc605c0296ee14065cd86b6chas williams - CONTRACTOR for (;;) { 55de713b57947a7a1b9cc605c0296ee14065cd86b6chas williams - CONTRACTOR prepare_to_wait(sk_sleep(sk), &wait, TASK_UNINTERRUPTIBLE); 56de713b57947a7a1b9cc605c0296ee14065cd86b6chas williams - CONTRACTOR if (test_bit(ATM_VF_RELEASED, &vcc->flags) || !sigd) 57de713b57947a7a1b9cc605c0296ee14065cd86b6chas williams - CONTRACTOR break; 581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds schedule(); 591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 60aa395145165cb06a0d0885221bbe0ce4a564391dEric Dumazet finish_wait(sk_sleep(sk), &wait); 611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* beware - socket is still in use by atmsigd until the last 631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds as_indicate has been answered */ 641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while ((skb = skb_dequeue(&sk->sk_receive_queue)) != NULL) { 651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds atm_return(vcc, skb->truesize); 66522400623e240ad134cb4101b1fddc3245d2a7edStephen Hemminger pr_debug("LISTEN REL\n"); 67b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches sigd_enq2(NULL, as_reject, vcc, NULL, NULL, &vcc->qos, 0); 681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev_kfree_skb(skb); 691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds clear_bit(ATM_VF_REGIS, &vcc->flags); 711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* ... may retry later */ 721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int svc_release(struct socket *sock) 751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct sock *sk = sock->sk; 771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct atm_vcc *vcc; 781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 79b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches if (sk) { 801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds vcc = ATM_SD(sock); 8199824461ea72ca0044cc6508f02c0e1cabf37ba5Joe Perches pr_debug("%p\n", vcc); 821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds clear_bit(ATM_VF_READY, &vcc->flags); 83b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches /* 84b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches * VCC pointer is used as a reference, 85b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches * so we must not free it (thereby subjecting it to re-use) 86b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches * before all pending connections are closed 87b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches */ 881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds svc_disconnect(vcc); 891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds vcc_release(sock); 901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 94b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perchesstatic int svc_bind(struct socket *sock, struct sockaddr *sockaddr, 95b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches int sockaddr_len) 961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds DEFINE_WAIT(wait); 981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct sock *sk = sock->sk; 991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct sockaddr_atmsvc *addr; 1001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct atm_vcc *vcc; 1011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int error; 1021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (sockaddr_len != sizeof(struct sockaddr_atmsvc)) 1041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 1051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds lock_sock(sk); 1061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (sock->state == SS_CONNECTED) { 1071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -EISCONN; 1081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 1091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (sock->state != SS_UNCONNECTED) { 1111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -EINVAL; 1121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 1131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds vcc = ATM_SD(sock); 1151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds addr = (struct sockaddr_atmsvc *) sockaddr; 1161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (addr->sas_family != AF_ATMSVC) { 1171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -EAFNOSUPPORT; 1181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 1191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 120b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches clear_bit(ATM_VF_BOUND, &vcc->flags); 1211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* failing rebind will kill old binding */ 1221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* @@@ check memory (de)allocation on rebind */ 123b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches if (!test_bit(ATM_VF_HASQOS, &vcc->flags)) { 1241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -EBADFD; 1251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 1261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds vcc->local = *addr; 1281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds set_bit(ATM_VF_WAITING, &vcc->flags); 129b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches sigd_enq(vcc, as_bind, NULL, NULL, &vcc->local); 130de713b57947a7a1b9cc605c0296ee14065cd86b6chas williams - CONTRACTOR for (;;) { 131aa395145165cb06a0d0885221bbe0ce4a564391dEric Dumazet prepare_to_wait(sk_sleep(sk), &wait, TASK_UNINTERRUPTIBLE); 132de713b57947a7a1b9cc605c0296ee14065cd86b6chas williams - CONTRACTOR if (!test_bit(ATM_VF_WAITING, &vcc->flags) || !sigd) 133de713b57947a7a1b9cc605c0296ee14065cd86b6chas williams - CONTRACTOR break; 134de713b57947a7a1b9cc605c0296ee14065cd86b6chas williams - CONTRACTOR schedule(); 1351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 136aa395145165cb06a0d0885221bbe0ce4a564391dEric Dumazet finish_wait(sk_sleep(sk), &wait); 137b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches clear_bit(ATM_VF_REGIS, &vcc->flags); /* doesn't count */ 1381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!sigd) { 1391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -EUNATCH; 1401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 1411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 142f7d57453d20e27de69ecafd121005e9d13a0f427YOSHIFUJI Hideaki if (!sk->sk_err) 143b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches set_bit(ATM_VF_BOUND, &vcc->flags); 1441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -sk->sk_err; 1451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsout: 1461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds release_sock(sk); 1471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return error; 1481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 150b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perchesstatic int svc_connect(struct socket *sock, struct sockaddr *sockaddr, 151b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches int sockaddr_len, int flags) 1521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds DEFINE_WAIT(wait); 1541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct sock *sk = sock->sk; 1551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct sockaddr_atmsvc *addr; 1561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct atm_vcc *vcc = ATM_SD(sock); 1571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int error; 1581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 159b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches pr_debug("%p\n", vcc); 1601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds lock_sock(sk); 1611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (sockaddr_len != sizeof(struct sockaddr_atmsvc)) { 1621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -EINVAL; 1631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 1641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (sock->state) { 1671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 1681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -EINVAL; 1691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 1701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case SS_CONNECTED: 1711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -EISCONN; 1721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 1731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case SS_CONNECTING: 1741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (test_bit(ATM_VF_WAITING, &vcc->flags)) { 1751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -EALREADY; 1761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 1771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sock->state = SS_UNCONNECTED; 1791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (sk->sk_err) { 1801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -sk->sk_err; 1811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 1821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 1841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case SS_UNCONNECTED: 1851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds addr = (struct sockaddr_atmsvc *) sockaddr; 1861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (addr->sas_family != AF_ATMSVC) { 1871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -EAFNOSUPPORT; 1881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 1891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!test_bit(ATM_VF_HASQOS, &vcc->flags)) { 1911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -EBADFD; 1921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 1931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (vcc->qos.txtp.traffic_class == ATM_ANYCLASS || 1951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds vcc->qos.rxtp.traffic_class == ATM_ANYCLASS) { 1961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -EINVAL; 1971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 1981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!vcc->qos.txtp.traffic_class && 2001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds !vcc->qos.rxtp.traffic_class) { 2011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -EINVAL; 2021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 2031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds vcc->remote = *addr; 2051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds set_bit(ATM_VF_WAITING, &vcc->flags); 206b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches sigd_enq(vcc, as_connect, NULL, NULL, &vcc->remote); 2071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (flags & O_NONBLOCK) { 2081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sock->state = SS_CONNECTING; 2091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -EINPROGRESS; 2101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 2111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = 0; 213de713b57947a7a1b9cc605c0296ee14065cd86b6chas williams - CONTRACTOR prepare_to_wait(sk_sleep(sk), &wait, TASK_INTERRUPTIBLE); 2141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (test_bit(ATM_VF_WAITING, &vcc->flags) && sigd) { 2151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds schedule(); 2161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!signal_pending(current)) { 217aa395145165cb06a0d0885221bbe0ce4a564391dEric Dumazet prepare_to_wait(sk_sleep(sk), &wait, 218b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches TASK_INTERRUPTIBLE); 2191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 2201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 221522400623e240ad134cb4101b1fddc3245d2a7edStephen Hemminger pr_debug("*ABORT*\n"); 2221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 2231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This is tricky: 2241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Kernel ---close--> Demon 2251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Kernel <--close--- Demon 226f7d57453d20e27de69ecafd121005e9d13a0f427YOSHIFUJI Hideaki * or 2271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Kernel ---close--> Demon 2281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Kernel <--error--- Demon 2291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * or 2301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Kernel ---close--> Demon 2311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Kernel <--okay---- Demon 2321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Kernel <--close--- Demon 2331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 234b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches sigd_enq(vcc, as_close, NULL, NULL, NULL); 2351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (test_bit(ATM_VF_WAITING, &vcc->flags) && sigd) { 236aa395145165cb06a0d0885221bbe0ce4a564391dEric Dumazet prepare_to_wait(sk_sleep(sk), &wait, 237b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches TASK_INTERRUPTIBLE); 2381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds schedule(); 2391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!sk->sk_err) 241b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches while (!test_bit(ATM_VF_RELEASED, &vcc->flags) && 242b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches sigd) { 243aa395145165cb06a0d0885221bbe0ce4a564391dEric Dumazet prepare_to_wait(sk_sleep(sk), &wait, 244b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches TASK_INTERRUPTIBLE); 2451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds schedule(); 2461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 247b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches clear_bit(ATM_VF_REGIS, &vcc->flags); 248b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches clear_bit(ATM_VF_RELEASED, &vcc->flags); 249b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches clear_bit(ATM_VF_CLOSE, &vcc->flags); 2501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* we're gone now but may connect later */ 2511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -EINTR; 2521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 254aa395145165cb06a0d0885221bbe0ce4a564391dEric Dumazet finish_wait(sk_sleep(sk), &wait); 2551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (error) 2561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 2571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!sigd) { 2581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -EUNATCH; 2591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 2601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (sk->sk_err) { 2621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -sk->sk_err; 2631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 2641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 266391296c90cfc6812e1214404d6d7649c48d9bfd4Paul Bolle 2671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds vcc->qos.txtp.max_pcr = SELECT_TOP_PCR(vcc->qos.txtp); 2681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds vcc->qos.txtp.pcr = 0; 2691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds vcc->qos.txtp.min_pcr = 0; 270391296c90cfc6812e1214404d6d7649c48d9bfd4Paul Bolle 271b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches error = vcc_connect(sock, vcc->itf, vcc->vpi, vcc->vci); 272b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches if (!error) 2731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sock->state = SS_CONNECTED; 2741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 275b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches (void)svc_disconnect(vcc); 2761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsout: 2771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds release_sock(sk); 2781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return error; 2791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 281b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perchesstatic int svc_listen(struct socket *sock, int backlog) 2821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds DEFINE_WAIT(wait); 2841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct sock *sk = sock->sk; 2851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct atm_vcc *vcc = ATM_SD(sock); 2861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int error; 2871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 28899824461ea72ca0044cc6508f02c0e1cabf37ba5Joe Perches pr_debug("%p\n", vcc); 2891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds lock_sock(sk); 2901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* let server handle listen on unbound sockets */ 291b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches if (test_bit(ATM_VF_SESSION, &vcc->flags)) { 2921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -EINVAL; 2931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 2941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 29517b24b3c97498935a2ef9777370b1151dfed3f6fChas Williams if (test_bit(ATM_VF_LISTEN, &vcc->flags)) { 29617b24b3c97498935a2ef9777370b1151dfed3f6fChas Williams error = -EADDRINUSE; 29717b24b3c97498935a2ef9777370b1151dfed3f6fChas Williams goto out; 298b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches } 2991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds set_bit(ATM_VF_WAITING, &vcc->flags); 300b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches sigd_enq(vcc, as_listen, NULL, NULL, &vcc->local); 301de713b57947a7a1b9cc605c0296ee14065cd86b6chas williams - CONTRACTOR for (;;) { 302aa395145165cb06a0d0885221bbe0ce4a564391dEric Dumazet prepare_to_wait(sk_sleep(sk), &wait, TASK_UNINTERRUPTIBLE); 303de713b57947a7a1b9cc605c0296ee14065cd86b6chas williams - CONTRACTOR if (!test_bit(ATM_VF_WAITING, &vcc->flags) || !sigd) 304de713b57947a7a1b9cc605c0296ee14065cd86b6chas williams - CONTRACTOR break; 305de713b57947a7a1b9cc605c0296ee14065cd86b6chas williams - CONTRACTOR schedule(); 3061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 307aa395145165cb06a0d0885221bbe0ce4a564391dEric Dumazet finish_wait(sk_sleep(sk), &wait); 3081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!sigd) { 3091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -EUNATCH; 3101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 3111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 312b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches 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 321b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perchesstatic int svc_accept(struct socket *sock, struct socket *newsock, int flags) 3221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct sock *sk = sock->sk; 3241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct sk_buff *skb; 3251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct atmsvc_msg *msg; 3261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct atm_vcc *old_vcc = ATM_SD(sock); 3271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct atm_vcc *new_vcc; 3281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int error; 3291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds lock_sock(sk); 3311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3323f378b684453f2a028eda463ce383370545d9cc9Eric Paris error = svc_create(sock_net(sk), newsock, 0, 0); 3331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (error) 3341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 3351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds new_vcc = ATM_SD(newsock); 3371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 33899824461ea72ca0044cc6508f02c0e1cabf37ba5Joe Perches pr_debug("%p -> %p\n", old_vcc, new_vcc); 3391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (1) { 3401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds DEFINE_WAIT(wait); 3411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 342aa395145165cb06a0d0885221bbe0ce4a564391dEric Dumazet prepare_to_wait(sk_sleep(sk), &wait, TASK_INTERRUPTIBLE); 3431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (!(skb = skb_dequeue(&sk->sk_receive_queue)) && 3441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sigd) { 345b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches if (test_bit(ATM_VF_RELEASED, &old_vcc->flags)) 346b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches break; 347b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches 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 } 362aa395145165cb06a0d0885221bbe0ce4a564391dEric Dumazet prepare_to_wait(sk_sleep(sk), &wait, 363b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches TASK_INTERRUPTIBLE); 3641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 365aa395145165cb06a0d0885221bbe0ce4a564391dEric Dumazet finish_wait(sk_sleep(sk), &wait); 3661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (error) 3671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 3681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!skb) { 3691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -EUNATCH; 3701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 3711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 372b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches msg = (struct atmsvc_msg *)skb->data; 3731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds new_vcc->qos = msg->qos; 374b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches set_bit(ATM_VF_HASQOS, &new_vcc->flags); 3751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds new_vcc->remote = msg->svc; 3761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds new_vcc->local = msg->local; 3771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds new_vcc->sap = msg->sap; 3781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = vcc_connect(newsock, msg->pvc.sap_addr.itf, 379b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches msg->pvc.sap_addr.vpi, 380b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches msg->pvc.sap_addr.vci); 3811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev_kfree_skb(skb); 3821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sk->sk_ack_backlog--; 3831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (error) { 384b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches sigd_enq2(NULL, as_reject, old_vcc, NULL, NULL, 385b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches &old_vcc->qos, error); 3861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = error == -EAGAIN ? -EBUSY : error; 3871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 3881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* wait should be short, so we ignore the non-blocking flag */ 3901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds set_bit(ATM_VF_WAITING, &new_vcc->flags); 391b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches sigd_enq(new_vcc, as_accept, old_vcc, NULL, NULL); 392de713b57947a7a1b9cc605c0296ee14065cd86b6chas williams - CONTRACTOR for (;;) { 393de713b57947a7a1b9cc605c0296ee14065cd86b6chas williams - CONTRACTOR prepare_to_wait(sk_sleep(sk_atm(new_vcc)), &wait, 394de713b57947a7a1b9cc605c0296ee14065cd86b6chas williams - CONTRACTOR TASK_UNINTERRUPTIBLE); 395de713b57947a7a1b9cc605c0296ee14065cd86b6chas williams - CONTRACTOR if (!test_bit(ATM_VF_WAITING, &new_vcc->flags) || !sigd) 396de713b57947a7a1b9cc605c0296ee14065cd86b6chas williams - CONTRACTOR break; 3971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds release_sock(sk); 3981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds schedule(); 3991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds lock_sock(sk); 4001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 401aa395145165cb06a0d0885221bbe0ce4a564391dEric Dumazet finish_wait(sk_sleep(sk_atm(new_vcc)), &wait); 4021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!sigd) { 4031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -EUNATCH; 4041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 4051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!sk_atm(new_vcc)->sk_err) 4071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 4081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (sk_atm(new_vcc)->sk_err != ERESTARTSYS) { 4091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -sk_atm(new_vcc)->sk_err; 4101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 4111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds newsock->state = SS_CONNECTED; 4141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsout: 4151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds release_sock(sk); 4161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return error; 4171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 419b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perchesstatic int svc_getname(struct socket *sock, struct sockaddr *sockaddr, 420b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches int *sockaddr_len, int peer) 4211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 4221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct sockaddr_atmsvc *addr; 4231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *sockaddr_len = sizeof(struct sockaddr_atmsvc); 4251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds addr = (struct sockaddr_atmsvc *) sockaddr; 426b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches memcpy(addr, peer ? &ATM_SD(sock)->remote : &ATM_SD(sock)->local, 427b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches sizeof(struct sockaddr_atmsvc)); 4281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 4291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 431b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perchesint svc_change_qos(struct atm_vcc *vcc, struct atm_qos *qos) 4321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 4331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct sock *sk = sk_atm(vcc); 4341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds DEFINE_WAIT(wait); 4351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds set_bit(ATM_VF_WAITING, &vcc->flags); 437b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches sigd_enq2(vcc, as_modify, NULL, NULL, &vcc->local, qos, 0); 438de713b57947a7a1b9cc605c0296ee14065cd86b6chas williams - CONTRACTOR for (;;) { 439aa395145165cb06a0d0885221bbe0ce4a564391dEric Dumazet prepare_to_wait(sk_sleep(sk), &wait, TASK_UNINTERRUPTIBLE); 440de713b57947a7a1b9cc605c0296ee14065cd86b6chas williams - CONTRACTOR if (!test_bit(ATM_VF_WAITING, &vcc->flags) || 441de713b57947a7a1b9cc605c0296ee14065cd86b6chas williams - CONTRACTOR test_bit(ATM_VF_RELEASED, &vcc->flags) || !sigd) { 442de713b57947a7a1b9cc605c0296ee14065cd86b6chas williams - CONTRACTOR break; 443de713b57947a7a1b9cc605c0296ee14065cd86b6chas williams - CONTRACTOR } 444de713b57947a7a1b9cc605c0296ee14065cd86b6chas williams - CONTRACTOR schedule(); 4451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 446aa395145165cb06a0d0885221bbe0ce4a564391dEric Dumazet finish_wait(sk_sleep(sk), &wait); 447b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches if (!sigd) 448b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches return -EUNATCH; 4491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -sk->sk_err; 4501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int svc_setsockopt(struct socket *sock, int level, int optname, 453b7058842c940ad2c08dd829b21e5c92ebe3b8758David S. Miller char __user *optval, unsigned int optlen) 4541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 4551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct sock *sk = sock->sk; 4561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct atm_vcc *vcc = ATM_SD(sock); 4571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int value, error = 0; 4581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds lock_sock(sk); 4601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (optname) { 461b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches case SO_ATMSAP: 462b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches if (level != SOL_ATM || optlen != sizeof(struct atm_sap)) { 463b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches error = -EINVAL; 464b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches goto out; 465b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches } 466b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches if (copy_from_user(&vcc->sap, optval, optlen)) { 467b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches error = -EFAULT; 468b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches goto out; 469b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches } 470b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches set_bit(ATM_VF_HASSAP, &vcc->flags); 471b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches break; 472b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches case SO_MULTIPOINT: 473b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches if (level != SOL_ATM || optlen != sizeof(int)) { 474b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches error = -EINVAL; 475b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches goto out; 476b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches } 477b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches if (get_user(value, (int __user *)optval)) { 478b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches error = -EFAULT; 479b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches goto out; 480b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches } 481b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches if (value == 1) 482b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches set_bit(ATM_VF_SESSION, &vcc->flags); 483b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches else if (value == 0) 484b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches clear_bit(ATM_VF_SESSION, &vcc->flags); 485b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches else 486b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches error = -EINVAL; 487b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches break; 488b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches default: 489b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches error = vcc_setsockopt(sock, level, optname, optval, optlen); 4901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsout: 4931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds release_sock(sk); 4941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return error; 4951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 497b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perchesstatic int svc_getsockopt(struct socket *sock, int level, int optname, 498b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches char __user *optval, int __user *optlen) 4991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct sock *sk = sock->sk; 5011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int error = 0, len; 5021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds lock_sock(sk); 5041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!__SO_LEVEL_MATCH(optname, level) || optname != SO_ATMSAP) { 5051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = vcc_getsockopt(sock, level, optname, optval, optlen); 5061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 5071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (get_user(len, optlen)) { 5091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -EFAULT; 5101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 5111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (len != sizeof(struct atm_sap)) { 5131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -EINVAL; 5141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 5151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (copy_to_user(optval, &ATM_SD(sock)->sap, sizeof(struct atm_sap))) { 5171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -EFAULT; 5181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 5191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsout: 5211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds release_sock(sk); 5221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return error; 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 sigd_enq(vcc, as_addparty, NULL, NULL, 536f7d57453d20e27de69ecafd121005e9d13a0f427YOSHIFUJI Hideaki (struct sockaddr_atmsvc *) sockaddr); 5371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (flags & O_NONBLOCK) { 5381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -EINPROGRESS; 5391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 5401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 54199824461ea72ca0044cc6508f02c0e1cabf37ba5Joe Perches pr_debug("added wait queue\n"); 542de713b57947a7a1b9cc605c0296ee14065cd86b6chas williams - CONTRACTOR for (;;) { 543aa395145165cb06a0d0885221bbe0ce4a564391dEric Dumazet prepare_to_wait(sk_sleep(sk), &wait, TASK_INTERRUPTIBLE); 544de713b57947a7a1b9cc605c0296ee14065cd86b6chas williams - CONTRACTOR if (!test_bit(ATM_VF_WAITING, &vcc->flags) || !sigd) 545de713b57947a7a1b9cc605c0296ee14065cd86b6chas williams - CONTRACTOR break; 546de713b57947a7a1b9cc605c0296ee14065cd86b6chas williams - CONTRACTOR schedule(); 5471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 548aa395145165cb06a0d0885221bbe0ce4a564391dEric Dumazet finish_wait(sk_sleep(sk), &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 Torvaldsstatic int svc_dropparty(struct socket *sock, int ep_ref) 5561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds DEFINE_WAIT(wait); 5581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct sock *sk = sock->sk; 5591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct atm_vcc *vcc = ATM_SD(sock); 5601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int error; 5611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds lock_sock(sk); 5631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds set_bit(ATM_VF_WAITING, &vcc->flags); 5641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sigd_enq2(vcc, as_dropparty, NULL, NULL, NULL, NULL, ep_ref); 565de713b57947a7a1b9cc605c0296ee14065cd86b6chas williams - CONTRACTOR for (;;) { 566aa395145165cb06a0d0885221bbe0ce4a564391dEric Dumazet prepare_to_wait(sk_sleep(sk), &wait, TASK_INTERRUPTIBLE); 567de713b57947a7a1b9cc605c0296ee14065cd86b6chas williams - CONTRACTOR if (!test_bit(ATM_VF_WAITING, &vcc->flags) || !sigd) 568de713b57947a7a1b9cc605c0296ee14065cd86b6chas williams - CONTRACTOR break; 569de713b57947a7a1b9cc605c0296ee14065cd86b6chas williams - CONTRACTOR schedule(); 5701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 571aa395145165cb06a0d0885221bbe0ce4a564391dEric Dumazet finish_wait(sk_sleep(sk), &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 Torvaldsstatic int svc_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) 5831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 584f7d57453d20e27de69ecafd121005e9d13a0f427YOSHIFUJI Hideaki int error, ep_ref; 585f7d57453d20e27de69ecafd121005e9d13a0f427YOSHIFUJI Hideaki struct sockaddr_atmsvc sa; 5861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct atm_vcc *vcc = ATM_SD(sock); 587f7d57453d20e27de69ecafd121005e9d13a0f427YOSHIFUJI Hideaki 5881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (cmd) { 589b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches case ATM_ADDPARTY: 590b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches if (!test_bit(ATM_VF_SESSION, &vcc->flags)) 591b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches return -EINVAL; 592b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches if (copy_from_user(&sa, (void __user *) arg, sizeof(sa))) 593b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches return -EFAULT; 594b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches error = svc_addparty(sock, (struct sockaddr *)&sa, sizeof(sa), 595b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches 0); 596b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches break; 597b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches case ATM_DROPPARTY: 598b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches if (!test_bit(ATM_VF_SESSION, &vcc->flags)) 599b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches return -EINVAL; 600b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches if (copy_from_user(&ep_ref, (void __user *) arg, sizeof(int))) 601b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches return -EFAULT; 602b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches error = svc_dropparty(sock, ep_ref); 603b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches break; 604b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches default: 605b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches error = vcc_ioctl(sock, cmd, arg); 6061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return error; 6091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6118865c418caf4e9dd2c24bdfae3a5a4106e143e60David Woodhouse#ifdef CONFIG_COMPAT 612b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perchesstatic int svc_compat_ioctl(struct socket *sock, unsigned int cmd, 613b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches unsigned long arg) 6148865c418caf4e9dd2c24bdfae3a5a4106e143e60David Woodhouse{ 6158865c418caf4e9dd2c24bdfae3a5a4106e143e60David Woodhouse /* The definition of ATM_ADDPARTY uses the size of struct atm_iobuf. 6168865c418caf4e9dd2c24bdfae3a5a4106e143e60David Woodhouse But actually it takes a struct sockaddr_atmsvc, which doesn't need 6178865c418caf4e9dd2c24bdfae3a5a4106e143e60David Woodhouse compat handling. So all we have to do is fix up cmd... */ 6188865c418caf4e9dd2c24bdfae3a5a4106e143e60David Woodhouse if (cmd == COMPAT_ATM_ADDPARTY) 6198865c418caf4e9dd2c24bdfae3a5a4106e143e60David Woodhouse cmd = ATM_ADDPARTY; 6208865c418caf4e9dd2c24bdfae3a5a4106e143e60David Woodhouse 6218865c418caf4e9dd2c24bdfae3a5a4106e143e60David Woodhouse if (cmd == ATM_ADDPARTY || cmd == ATM_DROPPARTY) 6228865c418caf4e9dd2c24bdfae3a5a4106e143e60David Woodhouse return svc_ioctl(sock, cmd, arg); 6238865c418caf4e9dd2c24bdfae3a5a4106e143e60David Woodhouse else 6248865c418caf4e9dd2c24bdfae3a5a4106e143e60David Woodhouse return vcc_compat_ioctl(sock, cmd, arg); 6258865c418caf4e9dd2c24bdfae3a5a4106e143e60David Woodhouse} 6268865c418caf4e9dd2c24bdfae3a5a4106e143e60David Woodhouse#endif /* CONFIG_COMPAT */ 6278865c418caf4e9dd2c24bdfae3a5a4106e143e60David Woodhouse 62890ddc4f0470427df306f308ad03db6b6b21644b8Eric Dumazetstatic const struct proto_ops svc_proto_ops = { 6291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .family = PF_ATMSVC, 6301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .owner = THIS_MODULE, 6311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .release = svc_release, 6331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .bind = svc_bind, 6341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .connect = svc_connect, 6351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .socketpair = sock_no_socketpair, 6361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .accept = svc_accept, 6371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .getname = svc_getname, 6381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .poll = vcc_poll, 6391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .ioctl = svc_ioctl, 6408865c418caf4e9dd2c24bdfae3a5a4106e143e60David Woodhouse#ifdef CONFIG_COMPAT 6418865c418caf4e9dd2c24bdfae3a5a4106e143e60David Woodhouse .compat_ioctl = svc_compat_ioctl, 6428865c418caf4e9dd2c24bdfae3a5a4106e143e60David Woodhouse#endif 6431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .listen = svc_listen, 6441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .shutdown = svc_shutdown, 6451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .setsockopt = svc_setsockopt, 6461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .getsockopt = svc_getsockopt, 6471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .sendmsg = vcc_sendmsg, 6481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .recvmsg = vcc_recvmsg, 6491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .mmap = sock_no_mmap, 6501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .sendpage = sock_no_sendpage, 6511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 6521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6543f378b684453f2a028eda463ce383370545d9cc9Eric Parisstatic int svc_create(struct net *net, struct socket *sock, int protocol, 6553f378b684453f2a028eda463ce383370545d9cc9Eric Paris int kern) 6561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int error; 6581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 65909ad9bc752519cc167d0a573e1acf69b5c707c67Octavian Purdila if (!net_eq(net, &init_net)) 6601b8d7ae42d02e483ad94035cca851e4f7fbecb40Eric W. Biederman return -EAFNOSUPPORT; 6611b8d7ae42d02e483ad94035cca851e4f7fbecb40Eric W. Biederman 6621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sock->ops = &svc_proto_ops; 6631b8d7ae42d02e483ad94035cca851e4f7fbecb40Eric W. Biederman error = vcc_create(net, sock, protocol, AF_ATMSVC); 664b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches if (error) 665b7d9371befd6fa3eb0ad9d574860095642bf70edJoe Perches return error; 6661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ATM_SD(sock)->local.sas_family = AF_ATMSVC; 6671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ATM_SD(sock)->remote.sas_family = AF_ATMSVC; 6681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 6691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 671ec1b4cf74c81bfd0fbe5bf62bafc86c45917e72fStephen Hemmingerstatic const struct net_proto_family svc_family_ops = { 6721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .family = PF_ATMSVC, 6731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .create = svc_create, 6741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .owner = THIS_MODULE, 6751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 6761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 6791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Initialize the ATM SVC protocol family 6801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint __init atmsvc_init(void) 6831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return sock_register(&svc_family_ops); 6851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid atmsvc_exit(void) 6881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sock_unregister(PF_ATMSVC); 6901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 691