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| author | YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> | 2008-03-15 23:59:18 -0400 |
|---|---|---|
| committer | YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> | 2008-04-03 10:06:01 +0900 |
| commit | de357cc01334a468e4d5b7ba66a17b0d3ca9d63e (patch) | |
| tree | 8cae8de67f575dac77c265bf061f46820d6b8c68 /net/ipv6/ndisc.c | |
| parent | 52eeeb8481d705e61e2e9aae974e7799a93783e9 (diff) | |
| download | lwn-de357cc01334a468e4d5b7ba66a17b0d3ca9d63e.tar.gz lwn-de357cc01334a468e4d5b7ba66a17b0d3ca9d63e.zip | |
[IPV6] NDISC: Don't rely on node-type hint from L2 unless required.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Diffstat (limited to 'net/ipv6/ndisc.c')
| -rw-r--r-- | net/ipv6/ndisc.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c index 16273e11e53d..c400b874097a 100644 --- a/net/ipv6/ndisc.c +++ b/net/ipv6/ndisc.c @@ -1092,11 +1092,13 @@ static void ndisc_router_discovery(struct sk_buff *skb) return; } +#ifdef CONFIG_IPV6_NDISC_NODETYPE if (skb->ndisc_nodetype == NDISC_NODETYPE_HOST) { ND_PRINTK2(KERN_WARNING "ICMPv6 RA: from host or unauthorized router\n"); return; } +#endif /* * set the RA_RECV flag in the interface @@ -1121,9 +1123,11 @@ static void ndisc_router_discovery(struct sk_buff *skb) return; } +#ifdef CONFIG_IPV6_NDISC_NODETYPE /* skip link-specific parameters from interior routers */ if (skb->ndisc_nodetype == NDISC_NODETYPE_NODEFAULT) goto skip_linkparms; +#endif if (in6_dev->if_flags & IF_RS_SENT) { /* @@ -1239,7 +1243,9 @@ skip_defrtr: } } +#ifdef CONFIG_IPV6_NDISC_NODETYPE skip_linkparms: +#endif /* * Process options. @@ -1286,9 +1292,11 @@ skip_linkparms: } #endif +#ifdef CONFIG_IPV6_NDISC_NODETYPE /* skip link-specific ndopts from interior routers */ if (skb->ndisc_nodetype == NDISC_NODETYPE_NODEFAULT) goto out; +#endif if (in6_dev->cnf.accept_ra_pinfo && ndopts.nd_opts_pi) { struct nd_opt_hdr *p; @@ -1353,6 +1361,7 @@ static void ndisc_redirect_rcv(struct sk_buff *skb) int optlen; u8 *lladdr = NULL; +#ifdef CONFIG_IPV6_NDISC_NODETYPE switch (skb->ndisc_nodetype) { case NDISC_NODETYPE_HOST: case NDISC_NODETYPE_NODEFAULT: @@ -1360,6 +1369,7 @@ static void ndisc_redirect_rcv(struct sk_buff *skb) "ICMPv6 Redirect: from host or unauthorized router\n"); return; } +#endif if (!(ipv6_addr_type(&ipv6_hdr(skb)->saddr) & IPV6_ADDR_LINKLOCAL)) { ND_PRINTK2(KERN_WARNING |