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Viewing changes to net/ipv6/netfilter/ip6t_REJECT.c

  • Committer: Bazaar Package Importer
  • Author(s): Paolo Pisati
  • Date: 2011-06-29 15:23:51 UTC
  • mfrom: (26.1.1 natty-proposed)
  • Revision ID: james.westby@ubuntu.com-20110629152351-xs96tm303d95rpbk
Tags: 3.0.0-1200.2
* Rebased against 3.0.0-6.7
* BSP from TI based on 3.0.0

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Lines of Context:
net/ipv6/netfilter/ip6t_REJECT.c
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        int tcphoff, needs_ack;
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        const struct ipv6hdr *oip6h = ipv6_hdr(oldskb);
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        struct ipv6hdr *ip6h;
 
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#define DEFAULT_TOS_VALUE       0x0U
 
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        const __u8 tclass = DEFAULT_TOS_VALUE;
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        struct dst_entry *dst = NULL;
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        u8 proto;
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        struct flowi fl;
 
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        struct flowi6 fl6;
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        if ((!(ipv6_addr_type(&oip6h->saddr) & IPV6_ADDR_UNICAST)) ||
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            (!(ipv6_addr_type(&oip6h->daddr) & IPV6_ADDR_UNICAST))) {
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                return;
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        }
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        memset(&fl, 0, sizeof(fl));
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        fl.proto = IPPROTO_TCP;
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        ipv6_addr_copy(&fl.fl6_src, &oip6h->daddr);
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        ipv6_addr_copy(&fl.fl6_dst, &oip6h->saddr);
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        fl.fl_ip_sport = otcph.dest;
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        fl.fl_ip_dport = otcph.source;
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        security_skb_classify_flow(oldskb, &fl);
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        dst = ip6_route_output(net, NULL, &fl);
 
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        memset(&fl6, 0, sizeof(fl6));
 
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        fl6.flowi6_proto = IPPROTO_TCP;
 
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        ipv6_addr_copy(&fl6.saddr, &oip6h->daddr);
 
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        ipv6_addr_copy(&fl6.daddr, &oip6h->saddr);
 
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        fl6.fl6_sport = otcph.dest;
 
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        fl6.fl6_dport = otcph.source;
 
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        security_skb_classify_flow(oldskb, flowi6_to_flowi(&fl6));
 
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        dst = ip6_route_output(net, NULL, &fl6);
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        if (dst == NULL || dst->error) {
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                dst_release(dst);
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                return;
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        }
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        if (xfrm_lookup(net, &dst, &fl, NULL, 0))
 
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        dst = xfrm_lookup(net, dst, flowi6_to_flowi(&fl6), NULL, 0);
 
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        if (IS_ERR(dst))
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                return;
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        hh_len = (dst->dev->hard_header_len + 15)&~15;
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        skb_put(nskb, sizeof(struct ipv6hdr));
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        skb_reset_network_header(nskb);
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        ip6h = ipv6_hdr(nskb);
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        ip6h->version = 6;
 
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        *(__be32 *)ip6h =  htonl(0x60000000 | (tclass << 20));
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        ip6h->hop_limit = ip6_dst_hoplimit(dst);
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        ip6h->nexthdr = IPPROTO_TCP;
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        ipv6_addr_copy(&ip6h->saddr, &oip6h->daddr);