diff options
author | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-12 13:31:22 -0700 |
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committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-12 13:31:22 -0700 |
commit | e1bd2ac5a6b7a8b625e40c9e9f8b6dea4cf22f85 (patch) | |
tree | 9366e9fb481da2c7195ca3f2bafeffebbf001363 /net/ipv6/raw.c | |
parent | 0b9062f6b57a87f22309c6b920a51aaa66ce2a13 (diff) | |
parent | 15028aad00ddf241581fbe74a02ec89cbb28d35d (diff) |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: (183 commits)
[TG3]: Update version to 3.78.
[TG3]: Add missing NVRAM strapping.
[TG3]: Enable auto MDI.
[TG3]: Fix the polarity bit.
[TG3]: Fix irq_sync race condition.
[NET_SCHED]: ematch: module autoloading
[TCP]: tcp probe wraparound handling and other changes
[RTNETLINK]: rtnl_link: allow specifying initial device address
[RTNETLINK]: rtnl_link API simplification
[VLAN]: Fix MAC address handling
[ETH]: Validate address in eth_mac_addr
[NET]: Fix races in net_rx_action vs netpoll.
[AF_UNIX]: Rewrite garbage collector, fixes race.
[NETFILTER]: {ip, nf}_conntrack_sctp: fix remotely triggerable NULL ptr dereference (CVE-2007-2876)
[NET]: Make all initialized struct seq_operations const.
[UDP]: Fix length check.
[IPV6]: Remove unneeded pointer idev from addrconf_cleanup().
[DECNET]: Another unnecessary net/tcp.h inclusion in net/dn.h
[IPV6]: Make IPV6_{RECV,2292}RTHDR boolean options.
[IPV6]: Do not send RH0 anymore.
...
Fixed up trivial conflict in Documentation/feature-removal-schedule.txt
manually.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'net/ipv6/raw.c')
-rw-r--r-- | net/ipv6/raw.c | 40 |
1 files changed, 32 insertions, 8 deletions
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c index a58459a7668..e27383d855d 100644 --- a/net/ipv6/raw.c +++ b/net/ipv6/raw.c @@ -49,7 +49,7 @@ #include <net/udp.h> #include <net/inet_common.h> #include <net/tcp_states.h> -#ifdef CONFIG_IPV6_MIP6 +#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE) #include <net/mip6.h> #endif @@ -137,6 +137,28 @@ static __inline__ int icmpv6_filter(struct sock *sk, struct sk_buff *skb) return 0; } +#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE) +static int (*mh_filter)(struct sock *sock, struct sk_buff *skb); + +int rawv6_mh_filter_register(int (*filter)(struct sock *sock, + struct sk_buff *skb)) +{ + rcu_assign_pointer(mh_filter, filter); + return 0; +} +EXPORT_SYMBOL(rawv6_mh_filter_register); + +int rawv6_mh_filter_unregister(int (*filter)(struct sock *sock, + struct sk_buff *skb)) +{ + rcu_assign_pointer(mh_filter, NULL); + synchronize_rcu(); + return 0; +} +EXPORT_SYMBOL(rawv6_mh_filter_unregister); + +#endif + /* * demultiplex raw sockets. * (should consider queueing the skb in the sock receive_queue @@ -178,16 +200,22 @@ int ipv6_raw_deliver(struct sk_buff *skb, int nexthdr) case IPPROTO_ICMPV6: filtered = icmpv6_filter(sk, skb); break; -#ifdef CONFIG_IPV6_MIP6 + +#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE) case IPPROTO_MH: + { /* XXX: To validate MH only once for each packet, * this is placed here. It should be after checking * xfrm policy, however it doesn't. The checking xfrm * policy is placed in rawv6_rcv() because it is * required for each socket. */ - filtered = mip6_mh_filter(sk, skb); + int (*filter)(struct sock *sock, struct sk_buff *skb); + + filter = rcu_dereference(mh_filter); + filtered = filter ? filter(sk, skb) : 0; break; + } #endif default: filtered = 0; @@ -611,9 +639,7 @@ static int rawv6_probe_proto_opt(struct flowi *fl, struct msghdr *msg) struct iovec *iov; u8 __user *type = NULL; u8 __user *code = NULL; -#ifdef CONFIG_IPV6_MIP6 u8 len = 0; -#endif int probed = 0; int i; @@ -646,7 +672,6 @@ static int rawv6_probe_proto_opt(struct flowi *fl, struct msghdr *msg) probed = 1; } break; -#ifdef CONFIG_IPV6_MIP6 case IPPROTO_MH: if (iov->iov_base && iov->iov_len < 1) break; @@ -660,7 +685,6 @@ static int rawv6_probe_proto_opt(struct flowi *fl, struct msghdr *msg) len += iov->iov_len; break; -#endif default: probed = 1; break; @@ -1256,7 +1280,7 @@ static int raw6_seq_show(struct seq_file *seq, void *v) return 0; } -static struct seq_operations raw6_seq_ops = { +static const struct seq_operations raw6_seq_ops = { .start = raw6_seq_start, .next = raw6_seq_next, .stop = raw6_seq_stop, |