diff options
Diffstat (limited to 'net')
36 files changed, 370 insertions, 182 deletions
diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c index bd33f02013ec..7b13206185ba 100644 --- a/net/8021q/vlan.c +++ b/net/8021q/vlan.c @@ -378,6 +378,8 @@ static void vlan_transfer_features(struct net_device *dev, #if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE) vlandev->fcoe_ddp_xid = dev->fcoe_ddp_xid; #endif + vlandev->real_num_tx_queues = dev->real_num_tx_queues; + BUG_ON(vlandev->real_num_tx_queues > vlandev->num_tx_queues); if (old_features != vlandev->features) netdev_features_change(vlandev); diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c index 7f4d247237e4..f7d2fe431ee0 100644 --- a/net/8021q/vlan_dev.c +++ b/net/8021q/vlan_dev.c @@ -361,6 +361,14 @@ static netdev_tx_t vlan_dev_hwaccel_hard_start_xmit(struct sk_buff *skb, return ret; } +static u16 vlan_dev_select_queue(struct net_device *dev, struct sk_buff *skb) +{ + struct net_device *rdev = vlan_dev_info(dev)->real_dev; + const struct net_device_ops *ops = rdev->netdev_ops; + + return ops->ndo_select_queue(rdev, skb); +} + static int vlan_dev_change_mtu(struct net_device *dev, int new_mtu) { /* TODO: gotta make sure the underlying layer can handle it, @@ -688,7 +696,8 @@ static const struct header_ops vlan_header_ops = { .parse = eth_header_parse, }; -static const struct net_device_ops vlan_netdev_ops, vlan_netdev_accel_ops; +static const struct net_device_ops vlan_netdev_ops, vlan_netdev_accel_ops, + vlan_netdev_ops_sq, vlan_netdev_accel_ops_sq; static int vlan_dev_init(struct net_device *dev) { @@ -722,11 +731,17 @@ static int vlan_dev_init(struct net_device *dev) if (real_dev->features & NETIF_F_HW_VLAN_TX) { dev->header_ops = real_dev->header_ops; dev->hard_header_len = real_dev->hard_header_len; - dev->netdev_ops = &vlan_netdev_accel_ops; + if (real_dev->netdev_ops->ndo_select_queue) + dev->netdev_ops = &vlan_netdev_accel_ops_sq; + else + dev->netdev_ops = &vlan_netdev_accel_ops; } else { dev->header_ops = &vlan_header_ops; dev->hard_header_len = real_dev->hard_header_len + VLAN_HLEN; - dev->netdev_ops = &vlan_netdev_ops; + if (real_dev->netdev_ops->ndo_select_queue) + dev->netdev_ops = &vlan_netdev_ops_sq; + else + dev->netdev_ops = &vlan_netdev_ops; } if (is_vlan_dev(real_dev)) @@ -865,6 +880,56 @@ static const struct net_device_ops vlan_netdev_accel_ops = { #endif }; +static const struct net_device_ops vlan_netdev_ops_sq = { + .ndo_select_queue = vlan_dev_select_queue, + .ndo_change_mtu = vlan_dev_change_mtu, + .ndo_init = vlan_dev_init, + .ndo_uninit = vlan_dev_uninit, + .ndo_open = vlan_dev_open, + .ndo_stop = vlan_dev_stop, + .ndo_start_xmit = vlan_dev_hard_start_xmit, + .ndo_validate_addr = eth_validate_addr, + .ndo_set_mac_address = vlan_dev_set_mac_address, + .ndo_set_rx_mode = vlan_dev_set_rx_mode, + .ndo_set_multicast_list = vlan_dev_set_rx_mode, + .ndo_change_rx_flags = vlan_dev_change_rx_flags, + .ndo_do_ioctl = vlan_dev_ioctl, + .ndo_neigh_setup = vlan_dev_neigh_setup, + .ndo_get_stats = vlan_dev_get_stats, +#if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE) + .ndo_fcoe_ddp_setup = vlan_dev_fcoe_ddp_setup, + .ndo_fcoe_ddp_done = vlan_dev_fcoe_ddp_done, + .ndo_fcoe_enable = vlan_dev_fcoe_enable, + .ndo_fcoe_disable = vlan_dev_fcoe_disable, + .ndo_fcoe_get_wwn = vlan_dev_fcoe_get_wwn, +#endif +}; + +static const struct net_device_ops vlan_netdev_accel_ops_sq = { + .ndo_select_queue = vlan_dev_select_queue, + .ndo_change_mtu = vlan_dev_change_mtu, + .ndo_init = vlan_dev_init, + .ndo_uninit = vlan_dev_uninit, + .ndo_open = vlan_dev_open, + .ndo_stop = vlan_dev_stop, + .ndo_start_xmit = vlan_dev_hwaccel_hard_start_xmit, + .ndo_validate_addr = eth_validate_addr, + .ndo_set_mac_address = vlan_dev_set_mac_address, + .ndo_set_rx_mode = vlan_dev_set_rx_mode, + .ndo_set_multicast_list = vlan_dev_set_rx_mode, + .ndo_change_rx_flags = vlan_dev_change_rx_flags, + .ndo_do_ioctl = vlan_dev_ioctl, + .ndo_neigh_setup = vlan_dev_neigh_setup, + .ndo_get_stats = vlan_dev_get_stats, +#if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE) + .ndo_fcoe_ddp_setup = vlan_dev_fcoe_ddp_setup, + .ndo_fcoe_ddp_done = vlan_dev_fcoe_ddp_done, + .ndo_fcoe_enable = vlan_dev_fcoe_enable, + .ndo_fcoe_disable = vlan_dev_fcoe_disable, + .ndo_fcoe_get_wwn = vlan_dev_fcoe_get_wwn, +#endif +}; + void vlan_setup(struct net_device *dev) { ether_setup(dev); diff --git a/net/bluetooth/hci_sysfs.c b/net/bluetooth/hci_sysfs.c index cafb55b0cea5..05fd125f74fe 100644 --- a/net/bluetooth/hci_sysfs.c +++ b/net/bluetooth/hci_sysfs.c @@ -8,8 +8,7 @@ #include <net/bluetooth/bluetooth.h> #include <net/bluetooth/hci_core.h> -struct class *bt_class = NULL; -EXPORT_SYMBOL_GPL(bt_class); +static struct class *bt_class; struct dentry *bt_debugfs = NULL; EXPORT_SYMBOL_GPL(bt_debugfs); diff --git a/net/bluetooth/l2cap.c b/net/bluetooth/l2cap.c index 4db7ae2fe07d..99d68c34e4f1 100644 --- a/net/bluetooth/l2cap.c +++ b/net/bluetooth/l2cap.c @@ -40,6 +40,8 @@ #include <linux/skbuff.h> #include <linux/list.h> #include <linux/device.h> +#include <linux/debugfs.h> +#include <linux/seq_file.h> #include <linux/uaccess.h> #include <linux/crc16.h> #include <net/sock.h> @@ -1000,7 +1002,8 @@ static int l2cap_sock_connect(struct socket *sock, struct sockaddr *addr, int al BT_DBG("sk %p", sk); - if (!addr || addr->sa_family != AF_BLUETOOTH) + if (!addr || alen < sizeof(addr->sa_family) || + addr->sa_family != AF_BLUETOOTH) return -EINVAL; memset(&la, 0, sizeof(la)); @@ -2830,6 +2833,11 @@ static inline int l2cap_config_rsp(struct l2cap_conn *conn, struct l2cap_cmd_hdr int len = cmd->len - sizeof(*rsp); char req[64]; + if (len > sizeof(req) - sizeof(struct l2cap_conf_req)) { + l2cap_send_disconn_req(conn, sk); + goto done; + } + /* throw out any old stored conf requests */ result = L2CAP_CONF_SUCCESS; len = l2cap_parse_conf_rsp(sk, rsp->data, @@ -3937,31 +3945,42 @@ drop: return 0; } -static ssize_t l2cap_sysfs_show(struct class *dev, - struct class_attribute *attr, - char *buf) +static int l2cap_debugfs_show(struct seq_file *f, void *p) { struct sock *sk; struct hlist_node *node; - char *str = buf; read_lock_bh(&l2cap_sk_list.lock); sk_for_each(sk, node, &l2cap_sk_list.head) { struct l2cap_pinfo *pi = l2cap_pi(sk); - str += sprintf(str, "%s %s %d %d 0x%4.4x 0x%4.4x %d %d %d\n", - batostr(&bt_sk(sk)->src), batostr(&bt_sk(sk)->dst), - sk->sk_state, __le16_to_cpu(pi->psm), pi->scid, - pi->dcid, pi->imtu, pi->omtu, pi->sec_level); + seq_printf(f, "%s %s %d %d 0x%4.4x 0x%4.4x %d %d %d\n", + batostr(&bt_sk(sk)->src), + batostr(&bt_sk(sk)->dst), + sk->sk_state, __le16_to_cpu(pi->psm), + pi->scid, pi->dcid, + pi->imtu, pi->omtu, pi->sec_level); } read_unlock_bh(&l2cap_sk_list.lock); - return str - buf; + return 0; +} + +static int l2cap_debugfs_open(struct inode *inode, struct file *file) +{ + return single_open(file, l2cap_debugfs_show, inode->i_private); } -static CLASS_ATTR(l2cap, S_IRUGO, l2cap_sysfs_show, NULL); +static const struct file_operations l2cap_debugfs_fops = { + .open = l2cap_debugfs_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +static struct dentry *l2cap_debugfs; static const struct proto_ops l2cap_sock_ops = { .family = PF_BLUETOOTH, @@ -4021,8 +4040,12 @@ static int __init l2cap_init(void) goto error; } - if (class_create_file(bt_class, &class_attr_l2cap) < 0) - BT_ERR("Failed to create L2CAP info file"); + if (bt_debugfs) { + l2cap_debugfs = debugfs_create_file("l2cap", 0444, + bt_debugfs, NULL, &l2cap_debugfs_fops); + if (!l2cap_debugfs) + BT_ERR("Failed to create L2CAP debug file"); + } BT_INFO("L2CAP ver %s", VERSION); BT_INFO("L2CAP socket layer initialized"); @@ -4036,7 +4059,7 @@ error: static void __exit l2cap_exit(void) { - class_remove_file(bt_class, &class_attr_l2cap); + debugfs_remove(l2cap_debugfs); if (bt_sock_unregister(BTPROTO_L2CAP) < 0) BT_ERR("L2CAP socket unregistration failed"); diff --git a/net/bluetooth/rfcomm/core.c b/net/bluetooth/rfcomm/core.c index db8a68e1a5ba..13f114e8b0f9 100644 --- a/net/bluetooth/rfcomm/core.c +++ b/net/bluetooth/rfcomm/core.c @@ -33,6 +33,8 @@ #include <linux/init.h> #include <linux/wait.h> #include <linux/device.h> +#include <linux/debugfs.h> +#include <linux/seq_file.h> #include <linux/net.h> #include <linux/mutex.h> #include <linux/kthread.h> @@ -2098,13 +2100,10 @@ static struct hci_cb rfcomm_cb = { .security_cfm = rfcomm_security_cfm }; -static ssize_t rfcomm_dlc_sysfs_show(struct class *dev, - struct class_attribute *attr, - char *buf) +static int rfcomm_dlc_debugfs_show(struct seq_file *f, void *x) { struct rfcomm_session *s; struct list_head *pp, *p; - char *str = buf; rfcomm_lock(); @@ -2114,18 +2113,32 @@ static ssize_t rfcomm_dlc_sysfs_show(struct class *dev, struct sock *sk = s->sock->sk; struct rfcomm_dlc *d = list_entry(pp, struct rfcomm_dlc, list); - str += sprintf(str, "%s %s %ld %d %d %d %d\n", - batostr(&bt_sk(sk)->src), batostr(&bt_sk(sk)->dst), - d->state, d->dlci, d->mtu, d->rx_credits, d->tx_credits); + seq_printf(f, "%s %s %ld %d %d %d %d\n", + batostr(&bt_sk(sk)->src), + batostr(&bt_sk(sk)->dst), + d->state, d->dlci, d->mtu, + d->rx_credits, d->tx_credits); } } rfcomm_unlock(); - return (str - buf); + return 0; } -static CLASS_ATTR(rfcomm_dlc, S_IRUGO, rfcomm_dlc_sysfs_show, NULL); +static int rfcomm_dlc_debugfs_open(struct inode *inode, struct file *file) +{ + return single_open(file, rfcomm_dlc_debugfs_show, inode->i_private); +} + +static const struct file_operations rfcomm_dlc_debugfs_fops = { + .open = rfcomm_dlc_debugfs_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +static struct dentry *rfcomm_dlc_debugfs; /* ---- Initialization ---- */ static int __init rfcomm_init(void) @@ -2142,8 +2155,12 @@ static int __init rfcomm_init(void) goto unregister; } - if (class_create_file(bt_class, &class_attr_rfcomm_dlc) < 0) - BT_ERR("Failed to create RFCOMM info file"); + if (bt_debugfs) { + rfcomm_dlc_debugfs = debugfs_create_file("rfcomm_dlc", 0444, + bt_debugfs, NULL, &rfcomm_dlc_debugfs_fops); + if (!rfcomm_dlc_debugfs) + BT_ERR("Failed to create RFCOMM debug file"); + } err = rfcomm_init_ttys(); if (err < 0) @@ -2171,7 +2188,7 @@ unregister: static void __exit rfcomm_exit(void) { - class_remove_file(bt_class, &class_attr_rfcomm_dlc); + debugfs_remove(rfcomm_dlc_debugfs); hci_unregister_cb(&rfcomm_cb); diff --git a/net/bluetooth/rfcomm/sock.c b/net/bluetooth/rfcomm/sock.c index ca87d6ac6a20..8ed3c37684fa 100644 --- a/net/bluetooth/rfcomm/sock.c +++ b/net/bluetooth/rfcomm/sock.c @@ -40,6 +40,8 @@ #include <linux/skbuff.h> #include <linux/list.h> #include <linux/device.h> +#include <linux/debugfs.h> +#include <linux/seq_file.h> #include <net/sock.h> #include <asm/system.h> @@ -395,7 +397,8 @@ static int rfcomm_sock_connect(struct socket *sock, struct sockaddr *addr, int a BT_DBG("sk %p", sk); - if (addr->sa_family != AF_BLUETOOTH || alen < sizeof(struct sockaddr_rc)) + if (alen < sizeof(struct sockaddr_rc) || + addr->sa_family != AF_BLUETOOTH) return -EINVAL; lock_sock(sk); @@ -1061,28 +1064,38 @@ done: return result; } -static ssize_t rfcomm_sock_sysfs_show(struct class *dev, - struct class_attribute *attr, - char *buf) +static int rfcomm_sock_debugfs_show(struct seq_file *f, void *p) { struct sock *sk; struct hlist_node *node; - char *str = buf; read_lock_bh(&rfcomm_sk_list.lock); sk_for_each(sk, node, &rfcomm_sk_list.head) { - str += sprintf(str, "%s %s %d %d\n", - batostr(&bt_sk(sk)->src), batostr(&bt_sk(sk)->dst), + seq_printf(f, "%s %s %d %d\n", + batostr(&bt_sk(sk)->src), + batostr(&bt_sk(sk)->dst), sk->sk_state, rfcomm_pi(sk)->channel); } read_unlock_bh(&rfcomm_sk_list.lock); - return (str - buf); + return 0; } -static CLASS_ATTR(rfcomm, S_IRUGO, rfcomm_sock_sysfs_show, NULL); +static int rfcomm_sock_debugfs_open(struct inode *inode, struct file *file) +{ + return single_open(file, rfcomm_sock_debugfs_show, inode->i_private); +} + +static const struct file_operations rfcomm_sock_debugfs_fops = { + .open = rfcomm_sock_debugfs_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +static struct dentry *rfcomm_sock_debugfs; static const struct proto_ops rfcomm_sock_ops = { .family = PF_BLUETOOTH, @@ -1122,8 +1135,12 @@ int __init rfcomm_init_sockets(void) if (err < 0) goto error; - if (class_create_file(bt_class, &class_attr_rfcomm) < 0) - BT_ERR("Failed to create RFCOMM info file"); + if (bt_debugfs) { + rfcomm_sock_debugfs = debugfs_create_file("rfcomm", 0444, + bt_debugfs, NULL, &rfcomm_sock_debugfs_fops); + if (!rfcomm_sock_debugfs) + BT_ERR("Failed to create RFCOMM debug file"); + } BT_INFO("RFCOMM socket layer initialized"); @@ -1137,7 +1154,7 @@ error: void rfcomm_cleanup_sockets(void) { - class_remove_file(bt_class, &class_attr_rfcomm); + debugfs_remove(rfcomm_sock_debugfs); if (bt_sock_unregister(BTPROTO_RFCOMM) < 0) BT_ERR("RFCOMM socket layer unregistration failed"); diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c index f93b939539bc..ca6b2ad1c3fc 100644 --- a/net/bluetooth/sco.c +++ b/net/bluetooth/sco.c @@ -38,6 +38,8 @@ #include <linux/socket.h> #include <linux/skbuff.h> #include <linux/device.h> +#include <linux/debugfs.h> +#include <linux/seq_file.h> #include <linux/list.h> #include <net/sock.h> @@ -497,7 +499,8 @@ static int sco_sock_connect(struct socket *sock, struct sockaddr *addr, int alen BT_DBG("sk %p", sk); - if (addr->sa_family != AF_BLUETOOTH || alen < sizeof(struct sockaddr_sco)) + if (alen < sizeof(struct sockaddr_sco) || + addr->sa_family != AF_BLUETOOTH) return -EINVAL; if (sk->sk_state != BT_OPEN && sk->sk_state != BT_BOUND) @@ -953,28 +956,36 @@ drop: return 0; } -static ssize_t sco_sysfs_show(struct class *dev, - struct class_attribute *attr, - char *buf) +static int sco_debugfs_show(struct seq_file *f, void *p) { struct sock *sk; struct hlist_node *node; - char *str = buf; read_lock_bh(&sco_sk_list.lock); sk_for_each(sk, node, &sco_sk_list.head) { - str += sprintf(str, "%s %s %d\n", - batostr(&bt_sk(sk)->src), batostr(&bt_sk(sk)->dst), - sk->sk_state); + seq_printf(f, "%s %s %d\n", batostr(&bt_sk(sk)->src), + batostr(&bt_sk(sk)->dst), sk->sk_state); } read_unlock_bh(&sco_sk_list.lock); - return (str - buf); + return 0; } -static CLASS_ATTR(sco, S_IRUGO, sco_sysfs_show, NULL); +static int sco_debugfs_open(struct inode *inode, struct file *file) +{ + return single_open(file, sco_debugfs_show, inode->i_private); +} + +static const struct file_operations sco_debugfs_fops = { + .open = sco_debugfs_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +static struct dentry *sco_debugfs; static const struct proto_ops sco_sock_ops = { .family = PF_BLUETOOTH, @@ -1032,8 +1043,12 @@ static int __init sco_init(void) goto error; } - if (class_create_file(bt_class, &class_attr_sco) < 0) - BT_ERR("Failed to create SCO info file"); + if (bt_debugfs) { + sco_debugfs = debugfs_create_file("sco", 0444, + bt_debugfs, NULL, &sco_debugfs_fops); + if (!sco_debugfs) + BT_ERR("Failed to create SCO debug file"); + } BT_INFO("SCO (Voice Link) ver %s", VERSION); BT_INFO("SCO socket layer initialized"); @@ -1047,7 +1062,7 @@ error: static void __exit sco_exit(void) { - class_remove_file(bt_class, &class_attr_sco); + debugfs_remove(sco_debugfs); if (bt_sock_unregister(BTPROTO_SCO) < 0) BT_ERR("SCO socket unregistration failed"); diff --git a/net/can/bcm.c b/net/can/bcm.c index e32af52238a2..629ad1debe81 100644 --- a/net/can/bcm.c +++ b/net/can/bcm.c @@ -1478,6 +1478,9 @@ static int bcm_connect(struct socket *sock, struct sockaddr *uaddr, int len, struct sock *sk = sock->sk; struct bcm_sock *bo = bcm_sk(sk); + if (len < sizeof(*addr)) + return -EINVAL; + if (bo->bound) return -EISCONN; diff --git a/net/core/netpoll.c b/net/core/netpoll.c index d4ec38fa64e6..6f9206b36dc2 100644 --- a/net/core/netpoll.c +++ b/net/core/netpoll.c @@ -614,7 +614,7 @@ void netpoll_print_options(struct netpoll *np) np->name, np->local_port); printk(KERN_INFO "%s: local IP %pI4\n", np->name, &np->local_ip); - printk(KERN_INFO "%s: interface %s\n", + printk(KERN_INFO "%s: interface '%s'\n", np->name, np->dev_name); printk(KERN_INFO "%s: remote port %d\n", np->name, np->remote_port); @@ -661,6 +661,9 @@ int netpoll_parse_options(struct netpoll *np, char *opt) if ((delim = strchr(cur, '@')) == NULL) goto parse_failed; *delim = 0; + if (*cur == ' ' || *cur == '\t') + printk(KERN_INFO "%s: warning: whitespace" + "is not allowed\n", np->name); np->remote_port = simple_strtol(cur, NULL, 10); cur = delim; } @@ -708,7 +711,7 @@ int netpoll_parse_options(struct netpoll *np, char *opt) return 0; parse_failed: - printk(KERN_INFO "%s: couldn't parse config at %s!\n", + printk(KERN_INFO "%s: couldn't parse config at '%s'!\n", np->name, cur); return -1; } diff --git a/net/ieee802154/af_ieee802154.c b/net/ieee802154/af_ieee802154.c index bad1c49fd960..01beb6c11205 100644 --- a/net/ieee802154/af_ieee802154.c +++ b/net/ieee802154/af_ieee802154.c @@ -126,6 +126,9 @@ static int ieee802154_sock_connect(struct socket *sock, struct sockaddr *uaddr, { struct sock *sk = sock->sk; + if (addr_len < sizeof(uaddr->sa_family)) + return -EINVAL; + if (uaddr->sa_family == AF_UNSPEC) return sk->sk_prot->disconnect(sk, flags); diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c index 55e11906a73a..b5924f178812 100644 --- a/net/ipv4/af_inet.c +++ b/net/ipv4/af_inet.c @@ -530,6 +530,8 @@ int inet_dgram_connect(struct socket *sock, struct sockaddr * uaddr, { struct sock *sk = sock->sk; + if (addr_len < sizeof(uaddr->sa_family)) + return -EINVAL; if (uaddr->sa_family == AF_UNSPEC) return sk->sk_prot->disconnect(sk, flags); @@ -573,6 +575,9 @@ int inet_stream_connect(struct socket *sock, struct sockaddr *uaddr, int err; long timeo; + if (addr_len < sizeof(uaddr->sa_family)) + return -EINVAL; + lock_sock(sk); if (uaddr->sa_family == AF_UNSPEC) { diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c index c75320ef95c2..d009c6a5d9ad 100644 --- a/net/ipv4/devinet.c +++ b/net/ipv4/devinet.c @@ -1194,7 +1194,7 @@ static int inet_dump_ifaddr(struct sk_buff *skb, struct netlink_callback *cb) hlist_for_each_entry_rcu(dev, node, head, index_hlist) { if (idx < s_idx) goto cont; - if (idx > s_idx) + if (h > s_h || idx > s_idx) s_ip_idx = 0; in_dev = __in_dev_get_rcu(dev); if (!in_dev) diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c index af5d89792860..01ef8ba9025c 100644 --- a/net/ipv4/fib_trie.c +++ b/net/ipv4/fib_trie.c @@ -961,7 +961,9 @@ fib_find_node(struct trie *t, u32 key) struct node *n; pos = 0; - n = rcu_dereference(t->trie); + n = rcu_dereference_check(t->trie, + rcu_read_lock_held() || + lockdep_rtnl_is_held()); while (n != NULL && NODE_TYPE(n) == T_TNODE) { tn = (struct tnode *) n; diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c index f47c9f76754b..f78402d097b3 100644 --- a/net/ipv4/ip_gre.c +++ b/net/ipv4/ip_gre.c @@ -810,11 +810,13 @@ static netdev_tx_t ipgre_tunnel_xmit(struct sk_buff *skb, struct net_device *dev tunnel->err_count = 0; } - max_headroom = LL_RESERVED_SPACE(tdev) + gre_hlen; + max_headroom = LL_RESERVED_SPACE(tdev) + gre_hlen + rt->u.dst.header_len; if (skb_headroom(skb) < max_headroom || skb_shared(skb)|| (skb_cloned(skb) && !skb_clone_writable(skb, 0))) { struct sk_buff *new_skb = skb_realloc_headroom(skb, max_headroom); + if (max_headroom > dev->needed_headroom) + dev->needed_headroom = max_headroom; if (!new_skb) { ip_rt_put(rt); txq->tx_dropped++; diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c index 0b9d03c54dc3..d0a6092a67be 100644 --- a/net/ipv4/ipmr.c +++ b/net/ipv4/ipmr.c @@ -1616,17 +1616,20 @@ ipmr_fill_mroute(struct sk_buff *skb, struct mfc_cache *c, struct rtmsg *rtm) int ct; struct rtnexthop *nhp; struct net *net = mfc_net(c); - struct net_device *dev = net->ipv4.vif_table[c->mfc_parent].dev; u8 *b = skb_tail_pointer(skb); struct rtattr *mp_head; - if (dev) - RTA_PUT(skb, RTA_IIF, 4, &dev->ifindex); + /* If cache is unresolved, don't try to parse IIF and OIF */ + if (c->mfc_parent > MAXVIFS) + return -ENOENT; + + if (VIF_EXISTS(net, c->mfc_parent)) + RTA_PUT(skb, RTA_IIF, 4, &net->ipv4.vif_table[c->mfc_parent].dev->ifindex); mp_head = (struct rtattr *)skb_put(skb, RTA_LENGTH(0)); for (ct = c->mfc_un.res.minvif; ct < c->mfc_un.res.maxvif; ct++) { - if (c->mfc_un.res.ttls[ct] < 255) { + if (VIF_EXISTS(net, ct) && c->mfc_un.res.ttls[ct] < 255) { if (skb_tailroom(skb) < RTA_ALIGN(RTA_ALIGN(sizeof(*nhp)) + 4)) goto rtattr_failure; nhp = (struct rtnexthop *)skb_put(skb, RTA_ALIGN(sizeof(*nhp))); diff --git a/net/ipv4/route.c b/net/ipv4/route.c index 32d396196df8..d413b57be9b3 100644 --- a/net/ipv4/route.c +++ b/net/ipv4/route.c @@ -1097,7 +1097,7 @@ static int slow_chain_length(const struct rtable *head) } static int rt_intern_hash(unsigned hash, struct rtable *rt, - struct rtable **rp, struct sk_buff *skb) + struct rtable **rp, struct sk_buff *skb, int ifindex) { struct rtable *rth, **rthp; unsigned long now; @@ -1212,11 +1212,16 @@ restart: slow_chain_length(rt_hash_table[hash].chain) > rt_chain_length_max) { struct net *net = dev_net(rt->u.dst.dev); int num = ++net->ipv4.current_rt_cache_rebuild_count; - if (!rt_caching(dev_net(rt->u.dst.dev))) { + if (!rt_caching(net)) { printk(KERN_WARNING "%s: %d rebuilds is over limit, route caching disabled\n", rt->u.dst.dev->name, num); } - rt_emergency_hash_rebuild(dev_net(rt->u.dst.dev)); + rt_emergency_hash_rebuild(net); + spin_unlock_bh(rt_hash_lock_addr(hash)); + + hash = rt_hash(rt->fl.fl4_dst, rt->fl.fl4_src, + ifindex, rt_genid(net)); + goto restart; } } @@ -1477,7 +1482,7 @@ void ip_rt_redirect(__be32 old_gw, __be32 daddr, __be32 new_gw, &netevent); rt_del(hash, rth); - if (!rt_intern_hash(hash, rt, &rt, NULL)) + if (!rt_intern_hash(hash, rt, &rt, NULL, rt->fl.oif)) ip_rt_put(rt); goto do_next; } @@ -1510,7 +1515,8 @@ static struct dst_entry *ipv4_negative_advice(struct dst_entry *dst) ip_rt_put(rt); ret = NULL; } else if ((rt->rt_flags & RTCF_REDIRECTED) || - rt->u.dst.expires) { + (rt->u.dst.expires && + time_after_eq(jiffies, rt->u.dst.expires))) { unsigned hash = rt_hash(rt->fl.fl4_dst, rt->fl.fl4_src, rt->fl.oif, rt_genid(dev_net(dst->dev))); @@ -1930,7 +1936,7 @@ static int ip_route_input_mc(struct sk_buff *skb, __be32 daddr, __be32 saddr, in_dev_put(in_dev); hash = rt_hash(daddr, saddr, dev->ifindex, rt_genid(dev_net(dev))); - return rt_intern_hash(hash, rth, NULL, skb); + return rt_intern_hash(hash, rth, NULL, skb, dev->ifindex); e_nobufs: in_dev_put(in_dev); @@ -2097,7 +2103,7 @@ static int ip_mkroute_input(struct sk_buff *skb, /* put it into the cache */ hash = rt_hash(daddr, saddr, fl->iif, rt_genid(dev_net(rth->u.dst.dev))); - return rt_intern_hash(hash, rth, NULL, skb); + return rt_intern_hash(hash, rth, NULL, skb, fl->iif); } /* @@ -2254,7 +2260,7 @@ local_input: } rth->rt_type = res.type; hash = rt_hash(daddr, saddr, fl.iif, rt_genid(net)); - err = rt_intern_hash(hash, rth, NULL, skb); + err = rt_intern_hash(hash, rth, NULL, skb, fl.iif); goto done; no_route: @@ -2501,7 +2507,7 @@ static int ip_mkroute_output(struct rtable **rp, if (err == 0) { hash = rt_hash(oldflp->fl4_dst, oldflp->fl4_src, oldflp->oif, rt_genid(dev_net(dev_out))); - err = rt_intern_hash(hash, rth, rp, NULL); + err = rt_intern_hash(hash, rth, rp, NULL, oldflp->oif); } return err; diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index 6afb6d8662b2..2c75f891914e 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -1368,6 +1368,7 @@ int tcp_read_sock(struct sock *sk, read_descriptor_t *desc, sk_eat_skb(sk, skb, 0); if (!desc->count) break; + tp->copied_seq = seq; } tp->copied_seq = seq; diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index 21b4c9e1a682..1c58b99a54a4 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -3607,7 +3607,7 @@ static int inet6_dump_addr(struct sk_buff *skb, struct netlink_callback *cb, hlist_for_each_entry_rcu(dev, node, head, index_hlist) { if (idx < s_idx) goto cont; - if (idx > s_idx) + if (h > s_h || idx > s_idx) s_ip_idx = 0; ip_idx = 0; idev = __in6_dev_get(dev); diff --git a/net/ipv6/ip6mr.c b/net/ipv6/ip6mr.c index 23e4ac0cc30e..27acfb58650a 100644 --- a/net/ipv6/ip6mr.c +++ b/net/ipv6/ip6mr.c @@ -1695,17 +1695,20 @@ ip6mr_fill_mroute(struct sk_buff *skb, struct mfc6_cache *c, struct rtmsg *rtm) int ct; struct rtnexthop *nhp; struct net *net = mfc6_net(c); - struct net_device *dev = net->ipv6.vif6_table[c->mf6c_parent].dev; u8 *b = skb_tail_pointer(skb); struct rtattr *mp_head; - if (dev) - RTA_PUT(skb, RTA_IIF, 4, &dev->ifindex); + /* If cache is unresolved, don't try to parse IIF and OIF */ + if (c->mf6c_parent > MAXMIFS) + return -ENOENT; + + if (MIF_EXISTS(net, c->mf6c_parent)) + RTA_PUT(skb, RTA_IIF, 4, &net->ipv6.vif6_table[c->mf6c_parent].dev->ifindex); mp_head = (struct rtattr *)skb_put(skb, RTA_LENGTH(0)); for (ct = c->mfc_un.res.minvif; ct < c->mfc_un.res.maxvif; ct++) { - if (c->mfc_un.res.ttls[ct] < 255) { + if (MIF_EXISTS(net, ct) && c->mfc_un.res.ttls[ct] < 255) { if (skb_tailroom(skb) < RTA_ALIGN(RTA_ALIGN(sizeof(*nhp)) + 4)) goto rtattr_failure; nhp = (struct rtnexthop *)skb_put(skb, RTA_ALIGN(sizeof(*nhp))); diff --git a/net/ipv6/netfilter/ip6table_raw.c b/net/ipv6/netfilter/ip6table_raw.c index aef31a29de9e..b9cf7cd61923 100644 --- a/net/ipv6/netfilter/ip6table_raw.c +++ b/net/ipv6/netfilter/ip6table_raw.c @@ -13,7 +13,7 @@ static const struct xt_table packet_raw = { .valid_hooks = RAW_VALID_HOOKS, .me = THIS_MODULE, .af = NFPROTO_IPV6, - .priority = NF_IP6_PRI_FIRST, + .priority = NF_IP6_PRI_RAW, }; /* The work comes in here from netfilter.c. */ diff --git a/net/ipv6/route.c b/net/ipv6/route.c index 7fcb0e5d1213..0d7713c5c206 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -890,12 +890,17 @@ static struct dst_entry *ip6_negative_advice(struct dst_entry *dst) struct rt6_info *rt = (struct rt6_info *) dst; if (rt) { - if (rt->rt6i_flags & RTF_CACHE) - ip6_del_rt(rt); - else + if (rt->rt6i_flags & RTF_CACHE) { + if (rt6_check_expired(rt)) { + ip6_del_rt(rt); + dst = NULL; + } + } else { dst_release(dst); + dst = NULL; + } } - return NULL; + return dst; } static void ip6_link_failure(struct sk_buff *skb) diff --git a/net/key/af_key.c b/net/key/af_key.c index 368707882647..344145f23c34 100644 --- a/net/key/af_key.c +++ b/net/key/af_key.c @@ -2129,10 +2129,9 @@ static int key_notify_policy(struct xfrm_policy *xp, int dir, struct km_event *c int err; out_skb = pfkey_xfrm_policy2msg_prep(xp); - if (IS_ERR(out_skb)) { - err = PTR_ERR(out_skb); - goto out; - } + if (IS_ERR(out_skb)) + return PTR_ERR(out_skb); + err = pfkey_xfrm_policy2msg(out_skb, xp, dir); if (err < 0) return err; @@ -2148,7 +2147,6 @@ static int key_notify_policy(struct xfrm_policy *xp, int dir, struct km_event *c out_hdr->sadb_msg_seq = c->seq; out_hdr->sadb_msg_pid = c->pid; pfkey_broadcast(out_skb, GFP_ATOMIC, BROADCAST_ALL, NULL, xp_net(xp)); -out: return 0; } diff --git a/net/mac80211/mesh_hwmp.c b/net/mac80211/mesh_hwmp.c index ce84237ebad3..ccff6133e19a 100644 --- a/net/mac80211/mesh_hwmp.c +++ b/net/mac80211/mesh_hwmp.c @@ -391,7 +391,7 @@ static u32 hwmp_route_info_get(struct ieee80211_sub_if_data *sdata, if (SN_GT(mpath->sn, orig_sn) || (mpath->sn == orig_sn && action == MPATH_PREQ && - new_metric > mpath->metric)) { + new_metric >= mpath->metric)) { process = false; fresh_info = false; } @@ -611,7 +611,7 @@ static void hwmp_prep_frame_process(struct ieee80211_sub_if_data *sdata, mesh_path_sel_frame_tx(MPATH_PREP, flags, orig_addr, cpu_to_le32(orig_sn), 0, target_addr, - cpu_to_le32(target_sn), mpath->next_hop->sta.addr, hopcount, + cpu_to_le32(target_sn), next_hop, hopcount, ttl, cpu_to_le32(lifetime), cpu_to_le32(metric), 0, sdata); rcu_read_unlock(); diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index 08e1f17a4226..db25fa9ef135 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -1991,6 +1991,7 @@ static bool ieee80211_tx_pending_skb(struct ieee80211_local *local, void ieee80211_tx_pending(unsigned long data) { struct ieee80211_local *local = (struct ieee80211_local *)data; + struct ieee80211_sub_if_data *sdata; unsigned long flags; int i; bool txok; @@ -2027,6 +2028,11 @@ void ieee80211_tx_pending(unsigned long data) if (!txok) break; } + + if (skb_queue_empty(&local->pending[i])) + list_for_each_entry_rcu(sdata, &local->interfaces, list) + netif_tx_wake_queue( + netdev_get_tx_queue(sdata->dev, i)); } spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); diff --git a/net/mac80211/util.c b/net/mac80211/util.c index c453226f06b2..53af57047435 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -279,13 +279,13 @@ static void __ieee80211_wake_queue(struct ieee80211_hw *hw, int queue, /* someone still has this queue stopped */ return; - if (!skb_queue_empty(&local->pending[queue])) + if (skb_queue_empty(&local->pending[queue])) { + rcu_read_lock(); + list_for_each_entry_rcu(sdata, &local->interfaces, list) + netif_tx_wake_queue(netdev_get_tx_queue(sdata->dev, queue)); + rcu_read_unlock(); + } else tasklet_schedule(&local->tx_pending_tasklet); - - rcu_read_lock(); - list_for_each_entry_rcu(sdata, &local->interfaces, list) - netif_tx_wake_queue(netdev_get_tx_queue(sdata->dev, queue)); - rcu_read_unlock(); } void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue, @@ -1097,9 +1097,9 @@ int ieee80211_reconfig(struct ieee80211_local *local) */ res = drv_start(local); if (res) { - WARN(local->suspended, "Harware became unavailable " - "upon resume. This is could be a software issue" - "prior to suspend or a hardware issue\n"); + WARN(local->suspended, "Hardware became unavailable " + "upon resume. This could be a software issue " + "prior to suspend or a hardware issue.\n"); return res; } diff --git a/net/netfilter/xt_hashlimit.c b/net/netfilter/xt_hashlimit.c index 9e9c48963942..215a64835de8 100644 --- a/net/netfilter/xt_hashlimit.c +++ b/net/netfilter/xt_hashlimit.c @@ -493,6 +493,7 @@ static void hashlimit_ipv6_mask(__be32 *i, unsigned int p) case 64 ... 95: i[2] = maskl(i[2], p - 64); i[3] = 0; + break; case 96 ... 127: i[3] = maskl(i[3], p - 96); break; @@ -879,7 +880,8 @@ static void dl_seq_stop(struct seq_file *s, void *v) struct xt_hashlimit_htable *htable = s->private; unsigned int *bucket = (unsigned int *)v; - kfree(bucket); + if (!IS_ERR(bucket)) + kfree(bucket); spin_unlock_bh(&htable->lock); } diff --git a/net/netfilter/xt_recent.c b/net/netfilter/xt_recent.c index 7073dbb8100c..971d172afece 100644 --- a/net/netfilter/xt_recent.c +++ b/net/netfilter/xt_recent.c @@ -267,7 +267,7 @@ recent_mt(const struct sk_buff *skb, const struct xt_match_param *par) for (i = 0; i < e->nstamps; i++) { if (info->seconds && time_after(time, e->stamps[i])) continue; - if (info->hit_count && ++hits >= info->hit_count) { + if (!info->hit_count || ++hits >= info->hit_count) { ret = !ret; break; } diff --git a/net/netlabel/netlabel_domainhash.c b/net/netlabel/netlabel_domainhash.c index 0bfeaab88ef5..06ab41b6b57a 100644 --- a/net/netlabel/netlabel_domainhash.c +++ b/net/netlabel/netlabel_domainhash.c @@ -50,9 +50,12 @@ struct netlbl_domhsh_tbl { }; /* Domain hash table */ -/* XXX - updates should be so rare that having one spinlock for the entire - * hash table should be okay */ +/* updates should be so rare that having one spinlock for the entire hash table + * should be okay */ static DEFINE_SPINLOCK(netlbl_domhsh_lock); +#define netlbl_domhsh_rcu_deref(p) \ + rcu_dereference_check(p, rcu_read_lock_held() || \ + lockdep_is_held(&netlbl_domhsh_lock)) static struct netlbl_domhsh_tbl *netlbl_domhsh = NULL; static struct netlbl_dom_map *netlbl_domhsh_def = NULL; @@ -106,7 +109,8 @@ static void netlbl_domhsh_free_entry(struct rcu_head *entry) * Description: * This is the hashing function for the domain hash table, it returns the * correct bucket number for the domain. The caller is responsibile for - * calling the rcu_read_[un]lock() functions. + * ensuring that the hash table is protected with either a RCU read lock or the + * hash table lock. * */ static u32 netlbl_domhsh_hash(const char *key) @@ -120,7 +124,7 @@ static u32 netlbl_domhsh_hash(const char *key) for (iter = 0, val = 0, len = strlen(key); iter < len; iter++) val = (val << 4 | (val >> (8 * sizeof(u32) - 4))) ^ key[iter]; - return val & (rcu_dereference(netlbl_domhsh)->size - 1); + return val & (netlbl_domhsh_rcu_deref(netlbl_domhsh)->size - 1); } /** @@ -130,7 +134,8 @@ static u32 netlbl_domhsh_hash(const char *key) * Description: * Searches the domain hash table and returns a pointer to the hash table * entry if found, otherwise NULL is returned. The caller is responsibile for - * the rcu hash table locks (i.e. the caller much call rcu_read_[un]lock()). + * ensuring that the hash table is protected with either a RCU read lock or the + * hash table lock. * */ static struct netlbl_dom_map *netlbl_domhsh_search(const char *domain) @@ -141,7 +146,7 @@ static struct netlbl_dom_map *netlbl_domhsh_search(const char *domain) if (domain != NULL) { bkt = netlbl_domhsh_hash(domain); - bkt_list = &rcu_dereference(netlbl_domhsh)->tbl[bkt]; + bkt_list = &netlbl_domhsh_rcu_deref(netlbl_domhsh)->tbl[bkt]; list_for_each_entry_rcu(iter, bkt_list, list) if (iter->valid && strcmp(iter->domain, domain) == 0) return iter; @@ -159,8 +164,8 @@ static struct netlbl_dom_map *netlbl_domhsh_search(const char *domain) * Searches the domain hash table and returns a pointer to the hash table * entry if an exact match is found, if an exact match is not present in the * hash table then the default entry is returned if valid otherwise NULL is - * returned. The caller is responsibile for the rcu hash table locks - * (i.e. the caller much call rcu_read_[un]lock()). + * returned. The caller is responsibile ensuring that the hash table is + * protected with either a RCU read lock or the hash table lock. * */ static struct netlbl_dom_map *netlbl_domhsh_search_def(const char *domain) @@ -169,7 +174,7 @@ static struct netlbl_dom_map *netlbl_domhsh_search_def(const char *domain) entry = netlbl_domhsh_search(domain); if (entry == NULL) { - entry = rcu_dereference(netlbl_domhsh_def); + entry = netlbl_domhsh_rcu_deref(netlbl_domhsh_def); if (entry != NULL && !entry->valid) entry = NULL; } @@ -306,8 +311,11 @@ int netlbl_domhsh_add(struct netlbl_dom_map *entry, struct netlbl_af6list *tmp6; #endif /* IPv6 */ + /* XXX - we can remove this RCU read lock as the spinlock protects the + * entire function, but before we do we need to fixup the + * netlbl_af[4,6]list RCU functions to do "the right thing" with + * respect to rcu_dereference() when only a spinlock is held. */ rcu_read_lock(); - spin_lock(&netlbl_domhsh_lock); if (entry->domain != NULL) entry_old = netlbl_domhsh_search(entry->domain); diff --git a/net/netlabel/netlabel_unlabeled.c b/net/netlabel/netlabel_unlabeled.c index 852d9d7976b9..3b4fde7622a3 100644 --- a/net/netlabel/netlabel_unlabeled.c +++ b/net/netlabel/netlabel_unlabeled.c @@ -114,6 +114,9 @@ struct netlbl_unlhsh_walk_arg { /* updates should be so rare that having one spinlock for the entire * hash table should be okay */ static DEFINE_SPINLOCK(netlbl_unlhsh_lock); +#define netlbl_unlhsh_rcu_deref(p) \ + rcu_dereference_check(p, rcu_read_lock_held() || \ + lockdep_is_held(&netlbl_unlhsh_lock)) static struct netlbl_unlhsh_tbl *netlbl_unlhsh = NULL; static struct netlbl_unlhsh_iface *netlbl_unlhsh_def = NULL; @@ -235,15 +238,13 @@ static void netlbl_unlhsh_free_iface(struct rcu_head *entry) * Description: * This is the hashing function for the unlabeled hash table, it returns the * bucket number for the given device/interface. The caller is responsible for - * calling the rcu_read_[un]lock() functions. + * ensuring that the hash table is protected with either a RCU read lock or + * the hash table lock. * */ static u32 netlbl_unlhsh_hash(int ifindex) { - /* this is taken _almost_ directly from - * security/selinux/netif.c:sel_netif_hasfn() as they do pretty much - * the same thing */ - return ifindex & (rcu_dereference(netlbl_unlhsh)->size - 1); + return ifindex & (netlbl_unlhsh_rcu_deref(netlbl_unlhsh)->size - 1); } /** @@ -253,7 +254,8 @@ static u32 netlbl_unlhsh_hash(int ifindex) * Description: * Searches the unlabeled connection hash table and returns a pointer to the * interface entry which matches @ifindex, otherwise NULL is returned. The - * caller is responsible for calling the rcu_read_[un]lock() functions. + * caller is responsible for ensuring that the hash table is protected with + * either a RCU read lock or the hash table lock. * */ static struct netlbl_unlhsh_iface *netlbl_unlhsh_search_iface(int ifindex) @@ -263,7 +265,7 @@ static struct netlbl_unlhsh_iface *netlbl_unlhsh_search_iface(int ifindex) struct netlbl_unlhsh_iface *iter; bkt = netlbl_unlhsh_hash(ifindex); - bkt_list = &rcu_dereference(netlbl_unlhsh)->tbl[bkt]; + bkt_list = &netlbl_unlhsh_rcu_deref(netlbl_unlhsh)->tbl[bkt]; list_for_each_entry_rcu(iter, bkt_list, list) if (iter->valid && iter->ifindex == ifindex) return iter; @@ -272,33 +274,6 @@ static struct netlbl_unlhsh_iface *netlbl_unlhsh_search_iface(int ifindex) } /** - * netlbl_unlhsh_search_iface_def - Search for a matching interface entry - * @ifindex: the network interface - * - * Description: - * Searches the unlabeled connection hash table and returns a pointer to the - * interface entry which matches @ifindex. If an exact match can not be found - * and there is a valid default entry, the default entry is returned, otherwise - * NULL is returned. The caller is responsible for calling the - * rcu_read_[un]lock() functions. - * - */ -static struct netlbl_unlhsh_iface *netlbl_unlhsh_search_iface_def(int ifindex) -{ - struct netlbl_unlhsh_iface *entry; - - entry = netlbl_unlhsh_search_iface(ifindex); - if (entry != NULL) - return entry; - - entry = rcu_dereference(netlbl_unlhsh_def); - if (entry != NULL && entry->valid) - return entry; - - return NULL; -} - -/** * netlbl_unlhsh_add_addr4 - Add a new IPv4 address entry to the hash table * @iface: the associated interface entry * @addr: IPv4 address in network byte order @@ -308,8 +283,7 @@ static struct netlbl_unlhsh_iface *netlbl_unlhsh_search_iface_def(int ifindex) * Description: * Add a new address entry into the unlabeled connection hash table using the * interface entry specified by @iface. On success zero is returned, otherwise - * a negative value is returned. The caller is responsible for calling the - * rcu_read_[un]lock() functions. + * a negative value is returned. * */ static int netlbl_unlhsh_add_addr4(struct netlbl_unlhsh_iface *iface, @@ -349,8 +323,7 @@ static int netlbl_unlhsh_add_addr4(struct netlbl_unlhsh_iface *iface, * Description: * Add a new address entry into the unlabeled connection hash table using the * interface entry specified by @iface. On success zero is returned, otherwise - * a negative value is returned. The caller is responsible for calling the - * rcu_read_[un]lock() functions. + * a negative value is returned. * */ static int netlbl_unlhsh_add_addr6(struct netlbl_unlhsh_iface *iface, @@ -391,8 +364,7 @@ static int netlbl_unlhsh_add_addr6(struct netlbl_unlhsh_iface *iface, * Description: * Add a new, empty, interface entry into the unlabeled connection hash table. * On success a pointer to the new interface entry is returned, on failure NULL - * is returned. The caller is responsible for calling the rcu_read_[un]lock() - * functions. + * is returned. * */ static struct netlbl_unlhsh_iface *netlbl_unlhsh_add_iface(int ifindex) @@ -415,10 +387,10 @@ static struct netlbl_unlhsh_iface *netlbl_unlhsh_add_iface(int ifindex) if (netlbl_unlhsh_search_iface(ifindex) != NULL) goto add_iface_failure; list_add_tail_rcu(&iface->list, - &rcu_dereference(netlbl_unlhsh)->tbl[bkt]); + &netlbl_unlhsh_rcu_deref(netlbl_unlhsh)->tbl[bkt]); } else { INIT_LIST_HEAD(&iface->list); - if (rcu_dereference(netlbl_unlhsh_def) != NULL) + if (netlbl_unlhsh_rcu_deref(netlbl_unlhsh_def) != NULL) goto add_iface_failure; rcu_assign_pointer(netlbl_unlhsh_def, iface); } @@ -548,8 +520,7 @@ unlhsh_add_return: * * Description: * Remove an IP address entry from the unlabeled connection hash table. - * Returns zero on success, negative values on failure. The caller is - * responsible for calling the rcu_read_[un]lock() functions. + * Returns zero on success, negative values on failure. * */ static int netlbl_unlhsh_remove_addr4(struct net *net, @@ -611,8 +582,7 @@ static int netlbl_unlhsh_remove_addr4(struct net *net, * * Description: * Remove an IP address entry from the unlabeled connection hash table. - * Returns zero on success, negative values on failure. The caller is - * responsible for calling the rcu_read_[un]lock() functions. + * Returns zero on success, negative values on failure. * */ static int netlbl_unlhsh_remove_addr6(struct net *net, @@ -1547,8 +1517,10 @@ int netlbl_unlabel_getattr(const struct sk_buff *skb, struct netlbl_unlhsh_iface *iface; rcu_read_lock(); - iface = netlbl_unlhsh_search_iface_def(skb->skb_iif); + iface = netlbl_unlhsh_search_iface(skb->skb_iif); if (iface == NULL) + iface = rcu_dereference(netlbl_unlhsh_def); + if (iface == NULL || !iface->valid) goto unlabel_getattr_nolabel; switch (family) { case PF_INET: { diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c index 274d977166b7..6464a1972a69 100644 --- a/net/netlink/af_netlink.c +++ b/net/netlink/af_netlink.c @@ -683,6 +683,9 @@ static int netlink_connect(struct socket *sock, struct sockaddr *addr, struct netlink_sock *nlk = nlk_sk(sk); struct sockaddr_nl *nladdr = (struct sockaddr_nl *)addr; + if (alen < sizeof(addr->sa_family)) + return -EINVAL; + if (addr->sa_family == AF_UNSPEC) { sk->sk_state = NETLINK_UNCONNECTED; nlk->dst_pid = 0; diff --git a/net/rxrpc/ar-accept.c b/net/rxrpc/ar-accept.c index 77228f28fa36..2d744f22a9a1 100644 --- a/net/rxrpc/ar-accept.c +++ b/net/rxrpc/ar-accept.c @@ -88,6 +88,11 @@ static int rxrpc_accept_incoming_call(struct rxrpc_local *local, /* get a notification message to send to the server app */ notification = alloc_skb(0, GFP_NOFS); + if (!notification) { + _debug("no memory"); + ret = -ENOMEM; + goto error_nofree; + } rxrpc_new_skb(notification); notification->mark = RXRPC_SKB_MARK_NEW_CALL; @@ -189,6 +194,7 @@ invalid_service: ret = -ECONNREFUSED; error: rxrpc_free_skb(notification); +error_nofree: _leave(" = %d", ret); return ret; } diff --git a/net/sched/Kconfig b/net/sched/Kconfig index 21f9c7678aa3..2f691fb180d1 100644 --- a/net/sched/Kconfig +++ b/net/sched/Kconfig @@ -328,13 +328,16 @@ config NET_CLS_FLOW module will be called cls_flow. config NET_CLS_CGROUP - bool "Control Group Classifier" + tristate "Control Group Classifier" select NET_CLS depends on CGROUPS ---help--- Say Y here if you want to classify packets based on the control cgroup of their process. + To compile this code as a module, choose M here: the + module will be called cls_cgroup. + config NET_EMATCH bool "Extended Matches" select NET_CLS diff --git a/net/sched/cls_cgroup.c b/net/sched/cls_cgroup.c index e4877ca6727c..7f27d2c15e08 100644 --- a/net/sched/cls_cgroup.c +++ b/net/sched/cls_cgroup.c @@ -24,6 +24,25 @@ struct cgroup_cls_state u32 classid; }; +static struct cgroup_subsys_state *cgrp_create(struct cgroup_subsys *ss, + struct cgroup *cgrp); +static void cgrp_destroy(struct cgroup_subsys *ss, struct cgroup *cgrp); +static int cgrp_populate(struct cgroup_subsys *ss, struct cgroup *cgrp); + +struct cgroup_subsys net_cls_subsys = { + .name = "net_cls", + .create = cgrp_create, + .destroy = cgrp_destroy, + .populate = cgrp_populate, +#ifdef CONFIG_NET_CLS_CGROUP + .subsys_id = net_cls_subsys_id, +#else +#define net_cls_subsys_id net_cls_subsys.subsys_id +#endif + .module = THIS_MODULE, +}; + + static inline struct cgroup_cls_state *cgrp_cls_state(struct cgroup *cgrp) { return container_of(cgroup_subsys_state(cgrp, net_cls_subsys_id), @@ -79,14 +98,6 @@ static int cgrp_populate(struct cgroup_subsys *ss, struct cgroup *cgrp) return cgroup_add_files(cgrp, ss, ss_files, ARRAY_SIZE(ss_files)); } -struct cgroup_subsys net_cls_subsys = { - .name = "net_cls", - .create = cgrp_create, - .destroy = cgrp_destroy, - .populate = cgrp_populate, - .subsys_id = net_cls_subsys_id, -}; - struct cls_cgroup_head { u32 handle; @@ -277,12 +288,19 @@ static struct tcf_proto_ops cls_cgroup_ops __read_mostly = { static int __init init_cgroup_cls(void) { - return register_tcf_proto_ops(&cls_cgroup_ops); + int ret = register_tcf_proto_ops(&cls_cgroup_ops); + if (ret) + return ret; + ret = cgroup_load_subsys(&net_cls_subsys); + if (ret) + unregister_tcf_proto_ops(&cls_cgroup_ops); + return ret; } static void __exit exit_cgroup_cls(void) { unregister_tcf_proto_ops(&cls_cgroup_ops); + cgroup_unload_subsys(&net_cls_subsys); } module_init(init_cgroup_cls); diff --git a/net/socket.c b/net/socket.c index ae904b58d9f5..ad2e8153c618 100644 --- a/net/socket.c +++ b/net/socket.c @@ -2134,6 +2134,10 @@ int __sys_recvmmsg(int fd, struct mmsghdr __user *mmsg, unsigned int vlen, break; ++datagrams; + /* MSG_WAITFORONE turns on MSG_DONTWAIT after one packet */ + if (flags & MSG_WAITFORONE) + flags |= MSG_DONTWAIT; + if (timeout) { ktime_get_ts(timeout); *timeout = timespec_sub(end_time, *timeout); diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c index 75ab08eac66b..e4839c07c913 100644 --- a/net/sunrpc/xprtsock.c +++ b/net/sunrpc/xprtsock.c @@ -548,8 +548,6 @@ static int xs_udp_send_request(struct rpc_task *task) /* Still some bytes left; set up for a retry later. */ status = -EAGAIN; } - if (!transport->sock) - goto out; switch (status) { case -ENOTSOCK: @@ -569,7 +567,7 @@ static int xs_udp_send_request(struct rpc_task *task) * prompts ECONNREFUSED. */ clear_bit(SOCK_ASYNC_NOSPACE, &transport->sock->flags); } -out: + return status; } @@ -651,8 +649,6 @@ static int xs_tcp_send_request(struct rpc_task *task) status = -EAGAIN; break; } - if (!transport->sock) - goto out; switch (status) { case -ENOTSOCK: @@ -672,7 +668,7 @@ static int xs_tcp_send_request(struct rpc_task *task) case -ENOTCONN: clear_bit(SOCK_ASYNC_NOSPACE, &transport->sock->flags); } -out: + return status; } diff --git a/net/wireless/reg.c b/net/wireless/reg.c index ed89c59bb431..81fcafc60150 100644 --- a/net/wireless/reg.c +++ b/net/wireless/reg.c @@ -324,7 +324,7 @@ struct reg_regdb_search_request { }; static LIST_HEAD(reg_regdb_search_list); -static DEFINE_SPINLOCK(reg_regdb_search_lock); +static DEFINE_MUTEX(reg_regdb_search_mutex); static void reg_regdb_search(struct work_struct *work) { @@ -332,7 +332,7 @@ static void reg_regdb_search(struct work_struct *work) const struct ieee80211_regdomain *curdom, *regdom; int i, r; - spin_lock(®_regdb_search_lock); + mutex_lock(®_regdb_search_mutex); while (!list_empty(®_regdb_search_list)) { request = list_first_entry(®_regdb_search_list, struct reg_regdb_search_request, @@ -346,18 +346,16 @@ static void reg_regdb_search(struct work_struct *work) r = reg_copy_regd(®dom, curdom); if (r) break; - spin_unlock(®_regdb_search_lock); mutex_lock(&cfg80211_mutex); set_regdom(regdom); mutex_unlock(&cfg80211_mutex); - spin_lock(®_regdb_search_lock); break; } } kfree(request); } - spin_unlock(®_regdb_search_lock); + mutex_unlock(®_regdb_search_mutex); } static DECLARE_WORK(reg_regdb_work, reg_regdb_search); @@ -375,9 +373,9 @@ static void reg_regdb_query(const char *alpha2) memcpy(request->alpha2, alpha2, 2); - spin_lock(®_regdb_search_lock); + mutex_lock(®_regdb_search_mutex); list_add_tail(&request->list, ®_regdb_search_list); - spin_unlock(®_regdb_search_lock); + mutex_unlock(®_regdb_search_mutex); schedule_work(®_regdb_work); } |