diff options
Diffstat (limited to 'net/rose/af_rose.c')
| -rw-r--r-- | net/rose/af_rose.c | 425 |
1 files changed, 232 insertions, 193 deletions
diff --git a/net/rose/af_rose.c b/net/rose/af_rose.c index ea65396d161..8451c8cdc9d 100644 --- a/net/rose/af_rose.c +++ b/net/rose/af_rose.c @@ -10,7 +10,6 @@ * Copyright (C) Tomi Manninen OH2BNS (oh2bns@sral.fi) */ -#include <linux/config.h> #include <linux/capability.h> #include <linux/module.h> #include <linux/moduleparam.h> @@ -19,6 +18,7 @@ #include <linux/types.h> #include <linux/socket.h> #include <linux/in.h> +#include <linux/slab.h> #include <linux/kernel.h> #include <linux/sched.h> #include <linux/spinlock.h> @@ -27,13 +27,13 @@ #include <linux/sockios.h> #include <linux/net.h> #include <linux/stat.h> +#include <net/net_namespace.h> #include <net/ax25.h> #include <linux/inet.h> #include <linux/netdevice.h> #include <linux/if_arp.h> #include <linux/skbuff.h> #include <net/sock.h> -#include <asm/system.h> #include <asm/uaccess.h> #include <linux/fcntl.h> #include <linux/termios.h> @@ -63,30 +63,50 @@ int sysctl_rose_window_size = ROSE_DEFAULT_WINDOW_SIZE; static HLIST_HEAD(rose_list); static DEFINE_SPINLOCK(rose_list_lock); -static struct proto_ops rose_proto_ops; +static const struct proto_ops rose_proto_ops; ax25_address rose_callsign; /* - * Convert a ROSE address into text. + * ROSE network devices are virtual network devices encapsulating ROSE + * frames into AX.25 which will be sent through an AX.25 device, so form a + * special "super class" of normal net devices; split their locks off into a + * separate class since they always nest. */ -const char *rose2asc(const rose_address *addr) +static struct lock_class_key rose_netdev_xmit_lock_key; +static struct lock_class_key rose_netdev_addr_lock_key; + +static void rose_set_lockdep_one(struct net_device *dev, + struct netdev_queue *txq, + void *_unused) +{ + lockdep_set_class(&txq->_xmit_lock, &rose_netdev_xmit_lock_key); +} + +static void rose_set_lockdep_key(struct net_device *dev) { - static char buffer[11]; + lockdep_set_class(&dev->addr_list_lock, &rose_netdev_addr_lock_key); + netdev_for_each_tx_queue(dev, rose_set_lockdep_one, NULL); +} +/* + * Convert a ROSE address into text. + */ +char *rose2asc(char *buf, const rose_address *addr) +{ if (addr->rose_addr[0] == 0x00 && addr->rose_addr[1] == 0x00 && addr->rose_addr[2] == 0x00 && addr->rose_addr[3] == 0x00 && addr->rose_addr[4] == 0x00) { - strcpy(buffer, "*"); + strcpy(buf, "*"); } else { - sprintf(buffer, "%02X%02X%02X%02X%02X", addr->rose_addr[0] & 0xFF, + sprintf(buf, "%02X%02X%02X%02X%02X", addr->rose_addr[0] & 0xFF, addr->rose_addr[1] & 0xFF, addr->rose_addr[2] & 0xFF, addr->rose_addr[3] & 0xFF, addr->rose_addr[4] & 0xFF); } - return buffer; + return buf; } /* @@ -108,7 +128,7 @@ int rosecmp(rose_address *addr1, rose_address *addr2) */ int rosecmpm(rose_address *addr1, rose_address *addr2, unsigned short mask) { - int i, j; + unsigned int i, j; if (mask > 10) return 1; @@ -145,10 +165,9 @@ static void rose_remove_socket(struct sock *sk) void rose_kill_by_neigh(struct rose_neigh *neigh) { struct sock *s; - struct hlist_node *node; spin_lock_bh(&rose_list_lock); - sk_for_each(s, node, &rose_list) { + sk_for_each(s, &rose_list) { struct rose_sock *rose = rose_sk(s); if (rose->neighbour == neigh) { @@ -166,10 +185,9 @@ void rose_kill_by_neigh(struct rose_neigh *neigh) static void rose_kill_by_device(struct net_device *dev) { struct sock *s; - struct hlist_node *node; spin_lock_bh(&rose_list_lock); - sk_for_each(s, node, &rose_list) { + sk_for_each(s, &rose_list) { struct rose_sock *rose = rose_sk(s); if (rose->device == dev) { @@ -184,10 +202,13 @@ static void rose_kill_by_device(struct net_device *dev) /* * Handle device status changes. */ -static int rose_device_event(struct notifier_block *this, unsigned long event, - void *ptr) +static int rose_device_event(struct notifier_block *this, + unsigned long event, void *ptr) { - struct net_device *dev = (struct net_device *)ptr; + struct net_device *dev = netdev_notifier_info_to_dev(ptr); + + if (!net_eq(dev_net(dev), &init_net)) + return NOTIFY_DONE; if (event != NETDEV_DOWN) return NOTIFY_DONE; @@ -223,10 +244,9 @@ static void rose_insert_socket(struct sock *sk) static struct sock *rose_find_listener(rose_address *addr, ax25_address *call) { struct sock *s; - struct hlist_node *node; spin_lock_bh(&rose_list_lock); - sk_for_each(s, node, &rose_list) { + sk_for_each(s, &rose_list) { struct rose_sock *rose = rose_sk(s); if (!rosecmp(&rose->source_addr, addr) && @@ -235,7 +255,7 @@ static struct sock *rose_find_listener(rose_address *addr, ax25_address *call) goto found; } - sk_for_each(s, node, &rose_list) { + sk_for_each(s, &rose_list) { struct rose_sock *rose = rose_sk(s); if (!rosecmp(&rose->source_addr, addr) && @@ -255,10 +275,9 @@ found: struct sock *rose_find_socket(unsigned int lci, struct rose_neigh *neigh) { struct sock *s; - struct hlist_node *node; spin_lock_bh(&rose_list_lock); - sk_for_each(s, node, &rose_list) { + sk_for_each(s, &rose_list) { struct rose_sock *rose = rose_sk(s); if (rose->lci == lci && rose->neighbour == neigh) @@ -331,13 +350,11 @@ void rose_destroy_socket(struct sock *sk) kfree_skb(skb); } - if (atomic_read(&sk->sk_wmem_alloc) || - atomic_read(&sk->sk_rmem_alloc)) { + if (sk_has_allocations(sk)) { /* Defer: outstanding buffers */ - init_timer(&sk->sk_timer); + setup_timer(&sk->sk_timer, rose_destroy_timer, + (unsigned long)sk); sk->sk_timer.expires = jiffies + 10 * HZ; - sk->sk_timer.function = rose_destroy_timer; - sk->sk_timer.data = (unsigned long)sk; add_timer(&sk->sk_timer); } else sock_put(sk); @@ -349,7 +366,7 @@ void rose_destroy_socket(struct sock *sk) */ static int rose_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, int optlen) + char __user *optval, unsigned int optlen) { struct sock *sk = sock->sk; struct rose_sock *rose = rose_sk(sk); @@ -491,15 +508,20 @@ static struct proto rose_proto = { .obj_size = sizeof(struct rose_sock), }; -static int rose_create(struct socket *sock, int protocol) +static int rose_create(struct net *net, struct socket *sock, int protocol, + int kern) { struct sock *sk; struct rose_sock *rose; + if (!net_eq(net, &init_net)) + return -EAFNOSUPPORT; + if (sock->type != SOCK_SEQPACKET || protocol != 0) return -ESOCKTNOSUPPORT; - if ((sk = sk_alloc(PF_ROSE, GFP_ATOMIC, &rose_proto, 1)) == NULL) + sk = sk_alloc(net, PF_ROSE, GFP_ATOMIC, &rose_proto); + if (sk == NULL) return -ENOMEM; rose = rose_sk(sk); @@ -518,11 +540,11 @@ static int rose_create(struct socket *sock, int protocol) init_timer(&rose->timer); init_timer(&rose->idletimer); - rose->t1 = sysctl_rose_call_request_timeout; - rose->t2 = sysctl_rose_reset_request_timeout; - rose->t3 = sysctl_rose_clear_request_timeout; - rose->hb = sysctl_rose_ack_hold_back_timeout; - rose->idle = sysctl_rose_no_activity_timeout; + rose->t1 = msecs_to_jiffies(sysctl_rose_call_request_timeout); + rose->t2 = msecs_to_jiffies(sysctl_rose_reset_request_timeout); + rose->t3 = msecs_to_jiffies(sysctl_rose_clear_request_timeout); + rose->hb = msecs_to_jiffies(sysctl_rose_ack_hold_back_timeout); + rose->idle = msecs_to_jiffies(sysctl_rose_no_activity_timeout); rose->state = ROSE_STATE_0; @@ -537,7 +559,8 @@ static struct sock *rose_make_new(struct sock *osk) if (osk->sk_type != SOCK_SEQPACKET) return NULL; - if ((sk = sk_alloc(PF_ROSE, GFP_ATOMIC, &rose_proto, 1)) == NULL) + sk = sk_alloc(sock_net(osk), PF_ROSE, GFP_ATOMIC, &rose_proto); + if (sk == NULL) return NULL; rose = rose_sk(sk); @@ -551,13 +574,11 @@ static struct sock *rose_make_new(struct sock *osk) #endif sk->sk_type = osk->sk_type; - sk->sk_socket = osk->sk_socket; sk->sk_priority = osk->sk_priority; sk->sk_protocol = osk->sk_protocol; sk->sk_rcvbuf = osk->sk_rcvbuf; sk->sk_sndbuf = osk->sk_sndbuf; sk->sk_state = TCP_ESTABLISHED; - sk->sk_sleep = osk->sk_sleep; sock_copy_flags(sk, osk); init_timer(&rose->timer); @@ -583,17 +604,24 @@ static int rose_release(struct socket *sock) if (sk == NULL) return 0; + sock_hold(sk); + sock_orphan(sk); + lock_sock(sk); rose = rose_sk(sk); switch (rose->state) { case ROSE_STATE_0: + release_sock(sk); rose_disconnect(sk, 0, -1, -1); + lock_sock(sk); rose_destroy_socket(sk); break; case ROSE_STATE_2: rose->neighbour->use--; + release_sock(sk); rose_disconnect(sk, 0, -1, -1); + lock_sock(sk); rose_destroy_socket(sk); break; @@ -618,6 +646,8 @@ static int rose_release(struct socket *sock) } sock->sk = NULL; + release_sock(sk); + sock_put(sk); return 0; } @@ -644,17 +674,15 @@ static int rose_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len) if (addr_len == sizeof(struct sockaddr_rose) && addr->srose_ndigis > 1) return -EINVAL; - if (addr->srose_ndigis > ROSE_MAX_DIGIS) + if ((unsigned int) addr->srose_ndigis > ROSE_MAX_DIGIS) return -EINVAL; - if ((dev = rose_dev_get(&addr->srose_addr)) == NULL) { - SOCK_DEBUG(sk, "ROSE: bind failed: invalid address\n"); + if ((dev = rose_dev_get(&addr->srose_addr)) == NULL) return -EADDRNOTAVAIL; - } source = &addr->srose_call; - user = ax25_findbyuid(current->euid); + user = ax25_findbyuid(current_euid()); if (user) { rose->source_call = user->call; ax25_uid_put(user); @@ -681,7 +709,7 @@ static int rose_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len) rose_insert_socket(sk); sock_reset_flag(sk, SOCK_ZAPPED); - SOCK_DEBUG(sk, "ROSE: socket is bound\n"); + return 0; } @@ -693,23 +721,7 @@ static int rose_connect(struct socket *sock, struct sockaddr *uaddr, int addr_le unsigned char cause, diagnostic; struct net_device *dev; ax25_uid_assoc *user; - int n; - - if (sk->sk_state == TCP_ESTABLISHED && sock->state == SS_CONNECTING) { - sock->state = SS_CONNECTED; - return 0; /* Connect completed during a ERESTARTSYS event */ - } - - if (sk->sk_state == TCP_CLOSE && sock->state == SS_CONNECTING) { - sock->state = SS_UNCONNECTED; - return -ECONNREFUSED; - } - - if (sk->sk_state == TCP_ESTABLISHED) - return -EISCONN; /* No reconnect on a seqpacket socket */ - - sk->sk_state = TCP_CLOSE; - sock->state = SS_UNCONNECTED; + int n, err = 0; if (addr_len != sizeof(struct sockaddr_rose) && addr_len != sizeof(struct full_sockaddr_rose)) return -EINVAL; @@ -720,31 +732,62 @@ static int rose_connect(struct socket *sock, struct sockaddr *uaddr, int addr_le if (addr_len == sizeof(struct sockaddr_rose) && addr->srose_ndigis > 1) return -EINVAL; - if (addr->srose_ndigis > ROSE_MAX_DIGIS) + if ((unsigned int) addr->srose_ndigis > ROSE_MAX_DIGIS) return -EINVAL; /* Source + Destination digis should not exceed ROSE_MAX_DIGIS */ if ((rose->source_ndigis + addr->srose_ndigis) > ROSE_MAX_DIGIS) return -EINVAL; + lock_sock(sk); + + if (sk->sk_state == TCP_ESTABLISHED && sock->state == SS_CONNECTING) { + /* Connect completed during a ERESTARTSYS event */ + sock->state = SS_CONNECTED; + goto out_release; + } + + if (sk->sk_state == TCP_CLOSE && sock->state == SS_CONNECTING) { + sock->state = SS_UNCONNECTED; + err = -ECONNREFUSED; + goto out_release; + } + + if (sk->sk_state == TCP_ESTABLISHED) { + /* No reconnect on a seqpacket socket */ + err = -EISCONN; + goto out_release; + } + + sk->sk_state = TCP_CLOSE; + sock->state = SS_UNCONNECTED; + rose->neighbour = rose_get_neigh(&addr->srose_addr, &cause, - &diagnostic); - if (!rose->neighbour) - return -ENETUNREACH; + &diagnostic, 0); + if (!rose->neighbour) { + err = -ENETUNREACH; + goto out_release; + } rose->lci = rose_new_lci(rose->neighbour); - if (!rose->lci) - return -ENETUNREACH; + if (!rose->lci) { + err = -ENETUNREACH; + goto out_release; + } if (sock_flag(sk, SOCK_ZAPPED)) { /* Must bind first - autobinding in this may or may not work */ sock_reset_flag(sk, SOCK_ZAPPED); - if ((dev = rose_dev_first()) == NULL) - return -ENETUNREACH; + if ((dev = rose_dev_first()) == NULL) { + err = -ENETUNREACH; + goto out_release; + } - user = ax25_findbyuid(current->euid); - if (!user) - return -EINVAL; + user = ax25_findbyuid(current_euid()); + if (!user) { + err = -EINVAL; + goto out_release; + } memcpy(&rose->source_addr, dev->dev_addr, ROSE_ADDR_LEN); rose->source_call = user->call; @@ -753,7 +796,6 @@ static int rose_connect(struct socket *sock, struct sockaddr *uaddr, int addr_le rose_insert_socket(sk); /* Finish the bind */ } - rose->dest_addr = addr->srose_addr; rose->dest_call = addr->srose_call; rose->rand = ((long)rose & 0xFFFF) + rose->lci; @@ -782,50 +824,57 @@ static int rose_connect(struct socket *sock, struct sockaddr *uaddr, int addr_le rose_start_t1timer(sk); /* Now the loop */ - if (sk->sk_state != TCP_ESTABLISHED && (flags & O_NONBLOCK)) - return -EINPROGRESS; + if (sk->sk_state != TCP_ESTABLISHED && (flags & O_NONBLOCK)) { + err = -EINPROGRESS; + goto out_release; + } /* * A Connect Ack with Choke or timeout or failed routing will go to * closed. */ if (sk->sk_state == TCP_SYN_SENT) { - struct task_struct *tsk = current; - DECLARE_WAITQUEUE(wait, tsk); + DEFINE_WAIT(wait); - add_wait_queue(sk->sk_sleep, &wait); for (;;) { - set_current_state(TASK_INTERRUPTIBLE); + prepare_to_wait(sk_sleep(sk), &wait, + TASK_INTERRUPTIBLE); if (sk->sk_state != TCP_SYN_SENT) break; - if (!signal_pending(tsk)) { + if (!signal_pending(current)) { + release_sock(sk); schedule(); + lock_sock(sk); continue; } - current->state = TASK_RUNNING; - remove_wait_queue(sk->sk_sleep, &wait); - return -ERESTARTSYS; + err = -ERESTARTSYS; + break; } - current->state = TASK_RUNNING; - remove_wait_queue(sk->sk_sleep, &wait); + finish_wait(sk_sleep(sk), &wait); + + if (err) + goto out_release; } if (sk->sk_state != TCP_ESTABLISHED) { sock->state = SS_UNCONNECTED; - return sock_error(sk); /* Always set at this point */ + err = sock_error(sk); /* Always set at this point */ + goto out_release; } sock->state = SS_CONNECTED; - return 0; +out_release: + release_sock(sk); + + return err; } static int rose_accept(struct socket *sock, struct socket *newsock, int flags) { - struct task_struct *tsk = current; - DECLARE_WAITQUEUE(wait, tsk); struct sk_buff *skb; struct sock *newsk; + DEFINE_WAIT(wait); struct sock *sk; int err = 0; @@ -835,52 +884,51 @@ static int rose_accept(struct socket *sock, struct socket *newsock, int flags) lock_sock(sk); if (sk->sk_type != SOCK_SEQPACKET) { err = -EOPNOTSUPP; - goto out; + goto out_release; } if (sk->sk_state != TCP_LISTEN) { err = -EINVAL; - goto out; + goto out_release; } /* * The write queue this time is holding sockets ready to use * hooked into the SABM we saved */ - add_wait_queue(sk->sk_sleep, &wait); for (;;) { + prepare_to_wait(sk_sleep(sk), &wait, TASK_INTERRUPTIBLE); + skb = skb_dequeue(&sk->sk_receive_queue); if (skb) break; - current->state = TASK_INTERRUPTIBLE; - release_sock(sk); if (flags & O_NONBLOCK) { - current->state = TASK_RUNNING; - remove_wait_queue(sk->sk_sleep, &wait); - return -EWOULDBLOCK; + err = -EWOULDBLOCK; + break; } - if (!signal_pending(tsk)) { + if (!signal_pending(current)) { + release_sock(sk); schedule(); lock_sock(sk); continue; } - return -ERESTARTSYS; + err = -ERESTARTSYS; + break; } - current->state = TASK_RUNNING; - remove_wait_queue(sk->sk_sleep, &wait); + finish_wait(sk_sleep(sk), &wait); + if (err) + goto out_release; newsk = skb->sk; - newsk->sk_socket = newsock; - newsk->sk_sleep = &newsock->wait; + sock_graft(newsk, newsock); /* Now attach up the new socket */ skb->sk = NULL; kfree_skb(skb); sk->sk_ack_backlog--; - newsock->sk = newsk; -out: +out_release: release_sock(sk); return err; @@ -894,6 +942,7 @@ static int rose_getname(struct socket *sock, struct sockaddr *uaddr, struct rose_sock *rose = rose_sk(sk); int n; + memset(srose, 0, sizeof(*srose)); if (peer != 0) { if (sk->sk_state != TCP_ESTABLISHED) return -ENOTCONN; @@ -922,7 +971,7 @@ int rose_rx_call_request(struct sk_buff *skb, struct net_device *dev, struct ros struct sock *make; struct rose_sock *make_rose; struct rose_facilities_struct facilities; - int n, len; + int n; skb->sk = NULL; /* Initially we don't know who it's for */ @@ -931,9 +980,9 @@ int rose_rx_call_request(struct sk_buff *skb, struct net_device *dev, struct ros */ memset(&facilities, 0x00, sizeof(struct rose_facilities_struct)); - len = (((skb->data[3] >> 4) & 0x0F) + 1) / 2; - len += (((skb->data[3] >> 0) & 0x0F) + 1) / 2; - if (!rose_parse_facilities(skb->data + len + 4, &facilities)) { + if (!rose_parse_facilities(skb->data + ROSE_CALL_REQ_FACILITIES_OFF, + skb->len - ROSE_CALL_REQ_FACILITIES_OFF, + &facilities)) { rose_transmit_clear_request(neigh, lci, ROSE_INVALID_FACILITY, 76); return 0; } @@ -963,7 +1012,7 @@ int rose_rx_call_request(struct sk_buff *skb, struct net_device *dev, struct ros make_rose->source_call = facilities.source_call; make_rose->source_ndigis = facilities.source_ndigis; for (n = 0 ; n < facilities.source_ndigis ; n++) - make_rose->source_digis[n]= facilities.source_digis[n]; + make_rose->source_digis[n] = facilities.source_digis[n]; make_rose->neighbour = neigh; make_rose->device = dev; make_rose->facilities = facilities; @@ -992,7 +1041,7 @@ int rose_rx_call_request(struct sk_buff *skb, struct net_device *dev, struct ros rose_start_heartbeat(make); if (!sock_flag(sk, SOCK_DEAD)) - sk->sk_data_ready(sk, skb->len); + sk->sk_data_ready(sk); return 1; } @@ -1002,7 +1051,7 @@ static int rose_sendmsg(struct kiocb *iocb, struct socket *sock, { struct sock *sk = sock->sk; struct rose_sock *rose = rose_sk(sk); - struct sockaddr_rose *usrose = (struct sockaddr_rose *)msg->msg_name; + DECLARE_SOCKADDR(struct sockaddr_rose *, usrose, msg->msg_name); int err; struct full_sockaddr_rose srose; struct sk_buff *skb; @@ -1053,10 +1102,11 @@ static int rose_sendmsg(struct kiocb *iocb, struct socket *sock, srose.srose_digis[n] = rose->dest_digis[n]; } - SOCK_DEBUG(sk, "ROSE: sendto: Addresses built.\n"); - /* Build a packet */ - SOCK_DEBUG(sk, "ROSE: sendto: building packet.\n"); + /* Sanity check the packet size */ + if (len > 65535) + return -EMSGSIZE; + size = len + AX25_BPQ_HEADER_LEN + AX25_MAX_HEADER_LEN + ROSE_MIN_LEN; if ((skb = sock_alloc_send_skb(sk, size, msg->msg_flags & MSG_DONTWAIT, &err)) == NULL) @@ -1067,11 +1117,11 @@ static int rose_sendmsg(struct kiocb *iocb, struct socket *sock, /* * Put the data on the end */ - SOCK_DEBUG(sk, "ROSE: Appending user data\n"); - asmptr = skb->h.raw = skb_put(skb, len); + skb_reset_transport_header(skb); + skb_put(skb, len); - err = memcpy_fromiovec(asmptr, msg->msg_iov, len); + err = memcpy_fromiovec(skb_transport_header(skb), msg->msg_iov, len); if (err) { kfree_skb(skb); return err; @@ -1091,8 +1141,6 @@ static int rose_sendmsg(struct kiocb *iocb, struct socket *sock, */ asmptr = skb_push(skb, ROSE_MIN_LEN); - SOCK_DEBUG(sk, "ROSE: Building Network Header.\n"); - /* Build a ROSE Network header */ asmptr[0] = ((rose->lci >> 8) & 0x0F) | ROSE_GFI; asmptr[1] = (rose->lci >> 0) & 0xFF; @@ -1101,10 +1149,6 @@ static int rose_sendmsg(struct kiocb *iocb, struct socket *sock, if (qbit) asmptr[0] |= ROSE_Q_BIT; - SOCK_DEBUG(sk, "ROSE: Built header.\n"); - - SOCK_DEBUG(sk, "ROSE: Transmitting buffer\n"); - if (sk->sk_state != TCP_ESTABLISHED) { kfree_skb(skb); return -ENOTCONN; @@ -1119,7 +1163,7 @@ static int rose_sendmsg(struct kiocb *iocb, struct socket *sock, int lg; /* Save a copy of the Header */ - memcpy(header, skb->data, ROSE_MIN_LEN); + skb_copy_from_linear_data(skb, header, ROSE_MIN_LEN); skb_pull(skb, ROSE_MIN_LEN); frontlen = skb_headroom(skb); @@ -1139,12 +1183,12 @@ static int rose_sendmsg(struct kiocb *iocb, struct socket *sock, lg = (ROSE_PACLEN > skb->len) ? skb->len : ROSE_PACLEN; /* Copy the user data */ - memcpy(skb_put(skbn, lg), skb->data, lg); + skb_copy_from_linear_data(skb, skb_put(skbn, lg), lg); skb_pull(skb, lg); /* Duplicate the Header */ skb_push(skbn, ROSE_MIN_LEN); - memcpy(skbn->data, header, ROSE_MIN_LEN); + skb_copy_to_linear_data(skbn, header, ROSE_MIN_LEN); if (skb->len > 0) skbn->data[2] |= M_BIT; @@ -1172,7 +1216,6 @@ static int rose_recvmsg(struct kiocb *iocb, struct socket *sock, { struct sock *sk = sock->sk; struct rose_sock *rose = rose_sk(sk); - struct sockaddr_rose *srose = (struct sockaddr_rose *)msg->msg_name; size_t copied; unsigned char *asmptr; struct sk_buff *skb; @@ -1198,7 +1241,7 @@ static int rose_recvmsg(struct kiocb *iocb, struct socket *sock, *asmptr = qbit; } - skb->h.raw = skb->data; + skb_reset_transport_header(skb); copied = skb->len; if (copied > size) { @@ -1208,23 +1251,20 @@ static int rose_recvmsg(struct kiocb *iocb, struct socket *sock, skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied); - if (srose != NULL) { + if (msg->msg_name) { + struct sockaddr_rose *srose; + DECLARE_SOCKADDR(struct full_sockaddr_rose *, full_srose, + msg->msg_name); + + memset(msg->msg_name, 0, sizeof(struct full_sockaddr_rose)); + srose = msg->msg_name; srose->srose_family = AF_ROSE; srose->srose_addr = rose->dest_addr; srose->srose_call = rose->dest_call; srose->srose_ndigis = rose->dest_ndigis; - if (msg->msg_namelen >= sizeof(struct full_sockaddr_rose)) { - struct full_sockaddr_rose *full_srose = (struct full_sockaddr_rose *)msg->msg_name; - for (n = 0 ; n < rose->dest_ndigis ; n++) - full_srose->srose_digis[n] = rose->dest_digis[n]; - msg->msg_namelen = sizeof(struct full_sockaddr_rose); - } else { - if (rose->dest_ndigis >= 1) { - srose->srose_ndigis = 1; - srose->srose_digi = rose->dest_digis[0]; - } - msg->msg_namelen = sizeof(struct sockaddr_rose); - } + for (n = 0 ; n < rose->dest_ndigis ; n++) + full_srose->srose_digis[n] = rose->dest_digis[n]; + msg->msg_namelen = sizeof(struct full_sockaddr_rose); } skb_free_datagram(sk, skb); @@ -1242,7 +1282,8 @@ static int rose_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) switch (cmd) { case TIOCOUTQ: { long amount; - amount = sk->sk_sndbuf - atomic_read(&sk->sk_wmem_alloc); + + amount = sk->sk_sndbuf - sk_wmem_alloc_get(sk); if (amount < 0) amount = 0; return put_user(amount, (unsigned int __user *) argp); @@ -1260,6 +1301,9 @@ static int rose_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) case SIOCGSTAMP: return sock_get_timestamp(sk, (struct timeval __user *) argp); + case SIOCGSTAMPNS: + return sock_get_timestampns(sk, (struct timespec __user *) argp); + case SIOCGIFADDR: case SIOCSIFADDR: case SIOCGIFDSTADDR: @@ -1302,7 +1346,8 @@ static int rose_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) if (copy_from_user(&rose_callsign, argp, sizeof(ax25_address))) return -EFAULT; if (ax25cmp(&rose_callsign, &null_ax25_address) != 0) - ax25_listen_register(&rose_callsign, NULL); + return ax25_listen_register(&rose_callsign, NULL); + return 0; case SIOCRSGL2CALL: @@ -1330,47 +1375,33 @@ static int rose_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) #ifdef CONFIG_PROC_FS static void *rose_info_start(struct seq_file *seq, loff_t *pos) + __acquires(rose_list_lock) { - int i; - struct sock *s; - struct hlist_node *node; - spin_lock_bh(&rose_list_lock); - if (*pos == 0) - return SEQ_START_TOKEN; - - i = 1; - sk_for_each(s, node, &rose_list) { - if (i == *pos) - return s; - ++i; - } - return NULL; + return seq_hlist_start_head(&rose_list, *pos); } static void *rose_info_next(struct seq_file *seq, void *v, loff_t *pos) { - ++*pos; - - return (v == SEQ_START_TOKEN) ? sk_head(&rose_list) - : sk_next((struct sock *)v); + return seq_hlist_next(v, &rose_list, pos); } - + static void rose_info_stop(struct seq_file *seq, void *v) + __releases(rose_list_lock) { spin_unlock_bh(&rose_list_lock); } static int rose_info_show(struct seq_file *seq, void *v) { - char buf[11]; + char buf[11], rsbuf[11]; if (v == SEQ_START_TOKEN) - seq_puts(seq, + seq_puts(seq, "dest_addr dest_call src_addr src_call dev lci neigh st vs vr va t t1 t2 t3 hb idle Snd-Q Rcv-Q inode\n"); else { - struct sock *s = v; + struct sock *s = sk_entry(v); struct rose_sock *rose = rose_sk(s); const char *devname, *callsign; const struct net_device *dev = rose->device; @@ -1379,10 +1410,10 @@ static int rose_info_show(struct seq_file *seq, void *v) devname = "???"; else devname = dev->name; - + seq_printf(seq, "%-10s %-9s ", - rose2asc(&rose->dest_addr), - ax2asc(buf, &rose->dest_call)); + rose2asc(rsbuf, &rose->dest_addr), + ax2asc(buf, &rose->dest_call)); if (ax25cmp(&rose->source_call, &null_ax25_address) == 0) callsign = "??????-?"; @@ -1391,7 +1422,7 @@ static int rose_info_show(struct seq_file *seq, void *v) seq_printf(seq, "%-10s %-9s %-5s %3.3X %05d %d %d %d %d %3lu %3lu %3lu %3lu %3lu %3lu/%03lu %5d %5d %ld\n", - rose2asc(&rose->source_addr), + rose2asc(rsbuf, &rose->source_addr), callsign, devname, rose->lci & 0x0FFF, @@ -1407,15 +1438,15 @@ static int rose_info_show(struct seq_file *seq, void *v) rose->hb / HZ, ax25_display_timer(&rose->idletimer) / (60 * HZ), rose->idle / (60 * HZ), - atomic_read(&s->sk_wmem_alloc), - atomic_read(&s->sk_rmem_alloc), + sk_wmem_alloc_get(s), + sk_rmem_alloc_get(s), s->sk_socket ? SOCK_INODE(s->sk_socket)->i_ino : 0L); } return 0; } -static struct seq_operations rose_info_seqops = { +static const struct seq_operations rose_info_seqops = { .start = rose_info_start, .next = rose_info_next, .stop = rose_info_stop, @@ -1427,7 +1458,7 @@ static int rose_info_open(struct inode *inode, struct file *file) return seq_open(file, &rose_info_seqops); } -static struct file_operations rose_info_fops = { +static const struct file_operations rose_info_fops = { .owner = THIS_MODULE, .open = rose_info_open, .read = seq_read, @@ -1436,13 +1467,13 @@ static struct file_operations rose_info_fops = { }; #endif /* CONFIG_PROC_FS */ -static struct net_proto_family rose_family_ops = { +static const struct net_proto_family rose_family_ops = { .family = PF_ROSE, .create = rose_create, .owner = THIS_MODULE, }; -static struct proto_ops rose_proto_ops = { +static const struct proto_ops rose_proto_ops = { .family = PF_ROSE, .owner = THIS_MODULE, .release = rose_release, @@ -1469,7 +1500,14 @@ static struct notifier_block rose_dev_notifier = { static struct net_device **dev_rose; -static const char banner[] = KERN_INFO "F6FBB/G4KLX ROSE for Linux. Version 0.62 for AX25.037 Linux 2.4\n"; +static struct ax25_protocol rose_pid = { + .pid = AX25_P_ROSE, + .func = rose_route_frame +}; + +static struct ax25_linkfail rose_linkfail_notifier = { + .func = rose_link_failed +}; static int __init rose_proto_init(void) { @@ -1488,21 +1526,19 @@ static int __init rose_proto_init(void) rose_callsign = null_ax25_address; - dev_rose = kmalloc(rose_ndevs * sizeof(struct net_device *), GFP_KERNEL); + dev_rose = kzalloc(rose_ndevs * sizeof(struct net_device *), GFP_KERNEL); if (dev_rose == NULL) { printk(KERN_ERR "ROSE: rose_proto_init - unable to allocate device structure\n"); rc = -ENOMEM; goto out_proto_unregister; } - memset(dev_rose, 0x00, rose_ndevs * sizeof(struct net_device*)); for (i = 0; i < rose_ndevs; i++) { struct net_device *dev; char name[IFNAMSIZ]; sprintf(name, "rose%d", i); - dev = alloc_netdev(sizeof(struct net_device_stats), - name, rose_setup); + dev = alloc_netdev(0, name, rose_setup); if (!dev) { printk(KERN_ERR "ROSE: rose_proto_init - unable to allocate memory\n"); rc = -ENOMEM; @@ -1514,15 +1550,15 @@ static int __init rose_proto_init(void) free_netdev(dev); goto fail; } + rose_set_lockdep_key(dev); dev_rose[i] = dev; } sock_register(&rose_family_ops); register_netdevice_notifier(&rose_dev_notifier); - printk(banner); - ax25_protocol_register(AX25_P_ROSE, rose_route_frame); - ax25_linkfail_register(rose_link_failed); + ax25_register_pid(&rose_pid); + ax25_linkfail_register(&rose_linkfail_notifier); #ifdef CONFIG_SYSCTL rose_register_sysctl(); @@ -1531,10 +1567,13 @@ static int __init rose_proto_init(void) rose_add_loopback_neigh(); - proc_net_fops_create("rose", S_IRUGO, &rose_info_fops); - proc_net_fops_create("rose_neigh", S_IRUGO, &rose_neigh_fops); - proc_net_fops_create("rose_nodes", S_IRUGO, &rose_nodes_fops); - proc_net_fops_create("rose_routes", S_IRUGO, &rose_routes_fops); + proc_create("rose", S_IRUGO, init_net.proc_net, &rose_info_fops); + proc_create("rose_neigh", S_IRUGO, init_net.proc_net, + &rose_neigh_fops); + proc_create("rose_nodes", S_IRUGO, init_net.proc_net, + &rose_nodes_fops); + proc_create("rose_routes", S_IRUGO, init_net.proc_net, + &rose_routes_fops); out: return rc; fail: @@ -1561,16 +1600,16 @@ static void __exit rose_exit(void) { int i; - proc_net_remove("rose"); - proc_net_remove("rose_neigh"); - proc_net_remove("rose_nodes"); - proc_net_remove("rose_routes"); + remove_proc_entry("rose", init_net.proc_net); + remove_proc_entry("rose_neigh", init_net.proc_net); + remove_proc_entry("rose_nodes", init_net.proc_net); + remove_proc_entry("rose_routes", init_net.proc_net); rose_loopback_clear(); rose_rt_free(); ax25_protocol_release(AX25_P_ROSE); - ax25_linkfail_release(rose_link_failed); + ax25_linkfail_release(&rose_linkfail_notifier); if (ax25cmp(&rose_callsign, &null_ax25_address) != 0) ax25_listen_release(&rose_callsign, NULL); |