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| author | YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> | 2006-09-22 14:43:49 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2006-09-22 15:20:25 -0700 |
| commit | fbea49e1e2404baa2d88ab47e2db89e49551b53b (patch) | |
| tree | 7e11746b350048e04867a9f67b843057428c2ef0 /net | |
| parent | 62dd93181aaa1d5a501a9cebcb254f44b8a48af7 (diff) | |
| download | linux-stable-fbea49e1e2404baa2d88ab47e2db89e49551b53b.tar.gz linux-stable-fbea49e1e2404baa2d88ab47e2db89e49551b53b.tar.bz2 linux-stable-fbea49e1e2404baa2d88ab47e2db89e49551b53b.zip | |
[IPV6] NDISC: Add proxy_ndp sysctl.
We do not always need proxy NDP functionality even we
enable forwarding.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/ipv6/addrconf.c | 11 | ||||
| -rw-r--r-- | net/ipv6/ip6_output.c | 4 | ||||
| -rw-r--r-- | net/ipv6/ndisc.c | 8 |
3 files changed, 21 insertions, 2 deletions
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index 1e5a296d0a82..825a291d5aa5 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -175,6 +175,7 @@ struct ipv6_devconf ipv6_devconf __read_mostly = { .accept_ra_rt_info_max_plen = 0, #endif #endif + .proxy_ndp = 0, }; static struct ipv6_devconf ipv6_devconf_dflt __read_mostly = { @@ -205,6 +206,7 @@ static struct ipv6_devconf ipv6_devconf_dflt __read_mostly = { .accept_ra_rt_info_max_plen = 0, #endif #endif + .proxy_ndp = 0, }; /* IPv6 Wildcard Address and Loopback Address defined by RFC2553 */ @@ -3337,6 +3339,7 @@ static void inline ipv6_store_devconf(struct ipv6_devconf *cnf, array[DEVCONF_ACCEPT_RA_RT_INFO_MAX_PLEN] = cnf->accept_ra_rt_info_max_plen; #endif #endif + array[DEVCONF_PROXY_NDP] = cnf->proxy_ndp; } /* Maximum length of ifinfomsg attributes */ @@ -3860,6 +3863,14 @@ static struct addrconf_sysctl_table #endif #endif { + .ctl_name = NET_IPV6_PROXY_NDP, + .procname = "proxy_ndp", + .data = &ipv6_devconf.proxy_ndp, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = &proc_dointvec, + }, + { .ctl_name = 0, /* sentinel */ } }, diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c index b2be749d2217..66716911962e 100644 --- a/net/ipv6/ip6_output.c +++ b/net/ipv6/ip6_output.c @@ -412,7 +412,9 @@ int ip6_forward(struct sk_buff *skb) return -ETIMEDOUT; } - if (pneigh_lookup(&nd_tbl, &hdr->daddr, skb->dev, 0)) { + /* XXX: idev->cnf.proxy_ndp? */ + if (ipv6_devconf.proxy_ndp && + pneigh_lookup(&nd_tbl, &hdr->daddr, skb->dev, 0)) { int proxied = ip6_forward_proxy_check(skb); if (proxied > 0) return ip6_input(skb); diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c index ddf038636f01..76517a5f6576 100644 --- a/net/ipv6/ndisc.c +++ b/net/ipv6/ndisc.c @@ -824,6 +824,7 @@ static void ndisc_recv_ns(struct sk_buff *skb) if (ipv6_chk_acast_addr(dev, &msg->target) || (idev->cnf.forwarding && + (ipv6_devconf.proxy_ndp || idev->cnf.proxy_ndp) && (pneigh = pneigh_lookup(&nd_tbl, &msg->target, dev, 0)) != NULL)) { if (!(NEIGH_CB(skb)->flags & LOCALLY_ENQUEUED) && @@ -966,8 +967,13 @@ static void ndisc_recv_na(struct sk_buff *skb) * has already sent a NA to us. */ if (lladdr && !memcmp(lladdr, dev->dev_addr, dev->addr_len) && - pneigh_lookup(&nd_tbl, &msg->target, dev, 0)) + ipv6_devconf.forwarding && ipv6_devconf.proxy_ndp && + pneigh_lookup(&nd_tbl, &msg->target, dev, 0)) { + /* XXX: idev->cnf.prixy_ndp */ + WARN_ON(skb->dst != NULL && + ((struct rt6_info *)skb->dst)->rt6i_idev); goto out; + } neigh_update(neigh, lladdr, msg->icmph.icmp6_solicited ? NUD_REACHABLE : NUD_STALE, |