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author | Andrew Dodd <atd7@cornell.edu> | 2013-02-16 18:41:04 -0500 |
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committer | Andrew Dodd <atd7@cornell.edu> | 2013-02-27 09:19:08 -0500 |
commit | b08797f2afdfc604c3143f8725d058aeef8ddcb2 (patch) | |
tree | c59e963bd6931d4e9f9526034ab402cc551f18ae /net/l2tp | |
parent | cbfae70f1dcaf3cc6e93061179dad80caa1597fe (diff) | |
parent | 54ea5b40f067cf098cac639973c6628c6944cfb2 (diff) | |
download | kernel_samsung_smdk4412-b08797f2afdfc604c3143f8725d058aeef8ddcb2.zip kernel_samsung_smdk4412-b08797f2afdfc604c3143f8725d058aeef8ddcb2.tar.gz kernel_samsung_smdk4412-b08797f2afdfc604c3143f8725d058aeef8ddcb2.tar.bz2 |
Merge remote-tracking branch 'kernelorg/linux-3.0.y' into 3_0_64
Conflicts:
arch/arm/Kconfig
arch/arm/include/asm/hwcap.h
arch/arm/kernel/smp.c
arch/arm/plat-samsung/adc.c
drivers/gpu/drm/i915/i915_reg.h
drivers/gpu/drm/i915/intel_drv.h
drivers/mmc/core/sd.c
drivers/net/tun.c
drivers/net/usb/usbnet.c
drivers/regulator/max8997.c
drivers/usb/core/hub.c
drivers/usb/host/xhci.h
drivers/usb/serial/qcserial.c
fs/jbd2/transaction.c
include/linux/migrate.h
kernel/sys.c
kernel/time/timekeeping.c
lib/genalloc.c
mm/memory-failure.c
mm/memory_hotplug.c
mm/mempolicy.c
mm/page_alloc.c
mm/vmalloc.c
mm/vmscan.c
mm/vmstat.c
scripts/Kbuild.include
Change-Id: I91e2d85c07320c7ccfc04cf98a448e89bed6ade6
Diffstat (limited to 'net/l2tp')
-rw-r--r-- | net/l2tp/l2tp_core.c | 3 | ||||
-rw-r--r-- | net/l2tp/l2tp_core.h | 1 | ||||
-rw-r--r-- | net/l2tp/l2tp_eth.c | 5 | ||||
-rw-r--r-- | net/l2tp/l2tp_ip.c | 33 |
4 files changed, 32 insertions, 10 deletions
diff --git a/net/l2tp/l2tp_core.c b/net/l2tp/l2tp_core.c index 71c292e..6a3d680 100644 --- a/net/l2tp/l2tp_core.c +++ b/net/l2tp/l2tp_core.c @@ -1252,11 +1252,10 @@ static void l2tp_tunnel_free(struct l2tp_tunnel *tunnel) /* Remove from tunnel list */ spin_lock_bh(&pn->l2tp_tunnel_list_lock); list_del_rcu(&tunnel->list); + kfree_rcu(tunnel, rcu); spin_unlock_bh(&pn->l2tp_tunnel_list_lock); - synchronize_rcu(); atomic_dec(&l2tp_tunnel_count); - kfree(tunnel); } /* Create a socket for the tunnel, if one isn't set up by diff --git a/net/l2tp/l2tp_core.h b/net/l2tp/l2tp_core.h index a16a48e..4393794 100644 --- a/net/l2tp/l2tp_core.h +++ b/net/l2tp/l2tp_core.h @@ -157,6 +157,7 @@ struct l2tp_tunnel_cfg { struct l2tp_tunnel { int magic; /* Should be L2TP_TUNNEL_MAGIC */ + struct rcu_head rcu; rwlock_t hlist_lock; /* protect session_hlist */ struct hlist_head session_hlist[L2TP_HASH_SIZE]; /* hashed list of sessions, diff --git a/net/l2tp/l2tp_eth.c b/net/l2tp/l2tp_eth.c index d2726a7..64164fb 100644 --- a/net/l2tp/l2tp_eth.c +++ b/net/l2tp/l2tp_eth.c @@ -132,7 +132,7 @@ static void l2tp_eth_dev_recv(struct l2tp_session *session, struct sk_buff *skb, printk("\n"); } - if (!pskb_may_pull(skb, sizeof(ETH_HLEN))) + if (!pskb_may_pull(skb, ETH_HLEN)) goto error; secpath_reset(skb); @@ -167,6 +167,7 @@ static void l2tp_eth_delete(struct l2tp_session *session) if (dev) { unregister_netdev(dev); spriv->dev = NULL; + module_put(THIS_MODULE); } } } @@ -254,6 +255,7 @@ static int l2tp_eth_create(struct net *net, u32 tunnel_id, u32 session_id, u32 p if (rc < 0) goto out_del_dev; + __module_get(THIS_MODULE); /* Must be done after register_netdev() */ strlcpy(session->ifname, dev->name, IFNAMSIZ); @@ -267,6 +269,7 @@ static int l2tp_eth_create(struct net *net, u32 tunnel_id, u32 session_id, u32 p out_del_dev: free_netdev(dev); + spriv->dev = NULL; out_del_session: l2tp_session_delete(session); out: diff --git a/net/l2tp/l2tp_ip.c b/net/l2tp/l2tp_ip.c index 858ca23..78bc442 100644 --- a/net/l2tp/l2tp_ip.c +++ b/net/l2tp/l2tp_ip.c @@ -251,9 +251,16 @@ static int l2tp_ip_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len) { struct inet_sock *inet = inet_sk(sk); struct sockaddr_l2tpip *addr = (struct sockaddr_l2tpip *) uaddr; - int ret = -EINVAL; + int ret; int chk_addr_ret; + if (!sock_flag(sk, SOCK_ZAPPED)) + return -EINVAL; + if (addr_len < sizeof(struct sockaddr_l2tpip)) + return -EINVAL; + if (addr->l2tp_family != AF_INET) + return -EINVAL; + ret = -EADDRINUSE; read_lock_bh(&l2tp_ip_lock); if (__l2tp_ip_bind_lookup(&init_net, addr->l2tp_addr.s_addr, sk->sk_bound_dev_if, addr->l2tp_conn_id)) @@ -283,6 +290,8 @@ static int l2tp_ip_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len) sk_del_node_init(sk); write_unlock_bh(&l2tp_ip_lock); ret = 0; + sock_reset_flag(sk, SOCK_ZAPPED); + out: release_sock(sk); @@ -303,13 +312,14 @@ static int l2tp_ip_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len __be32 saddr; int oif, rc; - rc = -EINVAL; + if (sock_flag(sk, SOCK_ZAPPED)) /* Must bind first - autobinding does not work */ + return -EINVAL; + if (addr_len < sizeof(*lsa)) - goto out; + return -EINVAL; - rc = -EAFNOSUPPORT; if (lsa->l2tp_family != AF_INET) - goto out; + return -EAFNOSUPPORT; lock_sock(sk); @@ -363,6 +373,14 @@ out: return rc; } +static int l2tp_ip_disconnect(struct sock *sk, int flags) +{ + if (sock_flag(sk, SOCK_ZAPPED)) + return 0; + + return udp_disconnect(sk, flags); +} + static int l2tp_ip_getname(struct socket *sock, struct sockaddr *uaddr, int *uaddr_len, int peer) { @@ -441,8 +459,9 @@ static int l2tp_ip_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *m daddr = lip->l2tp_addr.s_addr; } else { + rc = -EDESTADDRREQ; if (sk->sk_state != TCP_ESTABLISHED) - return -EDESTADDRREQ; + goto out; daddr = inet->inet_daddr; connected = 1; @@ -590,7 +609,7 @@ static struct proto l2tp_ip_prot = { .close = l2tp_ip_close, .bind = l2tp_ip_bind, .connect = l2tp_ip_connect, - .disconnect = udp_disconnect, + .disconnect = l2tp_ip_disconnect, .ioctl = udp_ioctl, .destroy = l2tp_ip_destroy_sock, .setsockopt = ip_setsockopt, |