diff options
Diffstat (limited to 'net')
| -rw-r--r-- | net/ipv6/datagram.c | 19 | ||||
| -rw-r--r-- | net/ipv6/ipv6_sockglue.c | 23 |
2 files changed, 42 insertions, 0 deletions
diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c index ef371aa..320bdb8 100644 --- a/net/ipv6/datagram.c +++ b/net/ipv6/datagram.c @@ -577,6 +577,25 @@ int datagram_recv_ctl(struct sock *sk, struct msghdr *msg, struct sk_buff *skb) u8 *ptr = nh + opt->dst1; put_cmsg(msg, SOL_IPV6, IPV6_2292DSTOPTS, (ptr[1]+1)<<3, ptr); } + if (np->rxopt.bits.rxorigdstaddr) { + struct sockaddr_in6 sin6; + u16 *ports = (u16 *) skb_transport_header(skb); + + if (skb_transport_offset(skb) + 4 <= skb->len) { + /* All current transport protocols have the port numbers in the + * first four bytes of the transport header and this function is + * written with this assumption in mind. + */ + + sin6.sin6_family = AF_INET6; + ipv6_addr_copy(&sin6.sin6_addr, &ipv6_hdr(skb)->daddr); + sin6.sin6_port = ports[1]; + sin6.sin6_flowinfo = 0; + sin6.sin6_scope_id = 0; + + put_cmsg(msg, SOL_IPV6, IPV6_ORIGDSTADDR, sizeof(sin6), &sin6); + } + } return 0; } diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c index a7f66bc..0553867 100644 --- a/net/ipv6/ipv6_sockglue.c +++ b/net/ipv6/ipv6_sockglue.c @@ -342,6 +342,21 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname, retv = 0; break; + case IPV6_TRANSPARENT: + if (optlen < sizeof(int)) + goto e_inval; + /* we don't have a separate transparent bit for IPV6 we use the one in the IPv4 socket */ + inet_sk(sk)->transparent = valbool; + retv = 0; + break; + + case IPV6_RECVORIGDSTADDR: + if (optlen < sizeof(int)) + goto e_inval; + np->rxopt.bits.rxorigdstaddr = valbool; + retv = 0; + break; + case IPV6_HOPOPTS: case IPV6_RTHDRDSTOPTS: case IPV6_RTHDR: @@ -1104,6 +1119,14 @@ static int do_ipv6_getsockopt(struct sock *sk, int level, int optname, break; } + case IPV6_TRANSPARENT: + val = inet_sk(sk)->transparent; + break; + + case IPV6_RECVORIGDSTADDR: + val = np->rxopt.bits.rxorigdstaddr; + break; + case IPV6_UNICAST_HOPS: case IPV6_MULTICAST_HOPS: { |