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| author | David Howells <dhowells@redhat.com> | 2018-10-04 09:32:28 +0100 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com> | 2018-10-04 09:32:28 +0100 |
| commit | 46894a13599a977ac35411b536fb3e0b2feefa95 (patch) | |
| tree | 7900ce31700b2b9c23528fd844f65c10c6010bb6 /net/rxrpc/peer_event.c | |
| parent | 66be646bd9a7d50961afbf48c1d0df148e37d416 (diff) | |
| download | linux-46894a13599a977ac35411b536fb3e0b2feefa95.tar.gz linux-46894a13599a977ac35411b536fb3e0b2feefa95.tar.bz2 linux-46894a13599a977ac35411b536fb3e0b2feefa95.zip | |
rxrpc: Use IPv4 addresses throught the IPv6
AF_RXRPC opens an IPv6 socket through which to send and receive network
packets, both IPv6 and IPv4. It currently turns AF_INET addresses into
AF_INET-as-AF_INET6 addresses based on an assumption that this was
necessary; on further inspection of the code, however, it turns out that
the IPv6 code just farms packets aimed at AF_INET addresses out to the IPv4
code.
Fix AF_RXRPC to use AF_INET addresses directly when given them.
Fixes: 7b674e390e51 ("rxrpc: Fix IPv6 support")
Signed-off-by: David Howells <dhowells@redhat.com>
Diffstat (limited to 'net/rxrpc/peer_event.c')
| -rw-r--r-- | net/rxrpc/peer_event.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/net/rxrpc/peer_event.c b/net/rxrpc/peer_event.c index f3e6fc670da2..81a7869325a6 100644 --- a/net/rxrpc/peer_event.c +++ b/net/rxrpc/peer_event.c @@ -47,6 +47,8 @@ static struct rxrpc_peer *rxrpc_lookup_peer_icmp_rcu(struct rxrpc_local *local, */ switch (srx->transport.family) { case AF_INET: + srx->transport_len = sizeof(srx->transport.sin); + srx->transport.family = AF_INET; srx->transport.sin.sin_port = serr->port; switch (serr->ee.ee_origin) { case SO_EE_ORIGIN_ICMP: @@ -70,20 +72,20 @@ static struct rxrpc_peer *rxrpc_lookup_peer_icmp_rcu(struct rxrpc_local *local, #ifdef CONFIG_AF_RXRPC_IPV6 case AF_INET6: - srx->transport.sin6.sin6_port = serr->port; switch (serr->ee.ee_origin) { case SO_EE_ORIGIN_ICMP6: _net("Rx ICMP6"); + srx->transport.sin6.sin6_port = serr->port; memcpy(&srx->transport.sin6.sin6_addr, skb_network_header(skb) + serr->addr_offset, sizeof(struct in6_addr)); break; case SO_EE_ORIGIN_ICMP: _net("Rx ICMP on v6 sock"); - srx->transport.sin6.sin6_addr.s6_addr32[0] = 0; - srx->transport.sin6.sin6_addr.s6_addr32[1] = 0; - srx->transport.sin6.sin6_addr.s6_addr32[2] = htonl(0xffff); - memcpy(srx->transport.sin6.sin6_addr.s6_addr + 12, + srx->transport_len = sizeof(srx->transport.sin); + srx->transport.family = AF_INET; + srx->transport.sin.sin_port = serr->port; + memcpy(&srx->transport.sin.sin_addr, skb_network_header(skb) + serr->addr_offset, sizeof(struct in_addr)); break; |