The patch titled
knfsd: SUNRPC: support IPv6 addresses in RPC server's UDP receive path
has been added to the -mm tree. Its filename is
knfsd-sunrpc-support-ipv6-addresses-in-rpc-servers-udp-receive-path.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: knfsd: SUNRPC: support IPv6 addresses in RPC server's UDP receive path
From: Chuck Lever <chuck.lever@xxxxxxxxxx>
Add support for IPv6 addresses in the RPC server's UDP receive path.
Signed-off-by: Chuck Lever <chuck.lever@xxxxxxxxxx>
Cc: Aurelien Charbon <aurelien.charbon@xxxxxxxxxxxx>
Signed-off-by: Neil Brown <neilb@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
include/linux/sunrpc/svc.h | 5 +++
net/sunrpc/svcsock.c | 49 +++++++++++++++++++++++++++++------
2 files changed, 46 insertions(+), 8 deletions(-)
diff -puN include/linux/sunrpc/svc.h~knfsd-sunrpc-support-ipv6-addresses-in-rpc-servers-udp-receive-path include/linux/sunrpc/svc.h
--- a/include/linux/sunrpc/svc.h~knfsd-sunrpc-support-ipv6-addresses-in-rpc-servers-udp-receive-path
+++ a/include/linux/sunrpc/svc.h
@@ -267,6 +267,11 @@ static inline struct sockaddr_in *svc_ad
return (struct sockaddr_in *) &rqst->rq_addr;
}
+static inline struct sockaddr_in6 *svc_addr_in6(struct svc_rqst *rqst)
+{
+ return (struct sockaddr_in6 *) &rqst->rq_addr;
+}
+
static inline struct sockaddr *svc_addr(struct svc_rqst *rqst)
{
return (struct sockaddr *) &rqst->rq_addr;
diff -puN net/sunrpc/svcsock.c~knfsd-sunrpc-support-ipv6-addresses-in-rpc-servers-udp-receive-path net/sunrpc/svcsock.c
--- a/net/sunrpc/svcsock.c~knfsd-sunrpc-support-ipv6-addresses-in-rpc-servers-udp-receive-path
+++ a/net/sunrpc/svcsock.c
@@ -717,13 +717,51 @@ svc_write_space(struct sock *sk)
}
}
+static void svc_udp_get_sender_address(struct svc_rqst *rqstp,
+ struct sk_buff *skb)
+{
+ switch (rqstp->rq_sock->sk_sk->sk_family) {
+ case AF_INET:
+ /* this seems to come from net/ipv4/udp.c:udp_recvmsg */
+ do {
+ struct sockaddr_in *sin = svc_addr_in(rqstp);
+
+ sin->sin_family = AF_INET;
+ sin->sin_port = skb->h.uh->source;
+ sin->sin_addr.s_addr = skb->nh.iph->saddr;
+ rqstp->rq_daddr.addr.s_addr = skb->nh.iph->daddr;
+ } while (0);
+ break;
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+ case AF_INET6:
+ /* this is derived from net/ipv6/udp.c:udpv6_recvmesg */
+ do {
+ struct sockaddr_in6 *sin6 = svc_addr_in6(rqstp);
+
+ sin6->sin6_family = AF_INET6;
+ sin6->sin6_port = skb->h.uh->source;
+ sin6->sin6_flowinfo = 0;
+ sin6->sin6_scope_id = 0;
+ if (ipv6_addr_type(&sin6->sin6_addr) &
+ IPV6_ADDR_LINKLOCAL)
+ sin6->sin6_scope_id = IP6CB(skb)->iif;
+ ipv6_addr_copy(&sin6->sin6_addr,
+ &skb->nh.ipv6h->saddr);
+ ipv6_addr_copy(&rqstp->rq_daddr.addr6,
+ &skb->nh.ipv6h->saddr);
+ } while (0);
+ break;
+#endif
+ }
+ return;
+}
+
/*
* Receive a datagram from a UDP socket.
*/
static int
svc_udp_recvfrom(struct svc_rqst *rqstp)
{
- struct sockaddr_in *sin = svc_addr_in(rqstp);
struct svc_sock *svsk = rqstp->rq_sock;
struct svc_serv *serv = svsk->sk_server;
struct sk_buff *skb;
@@ -775,14 +813,9 @@ svc_udp_recvfrom(struct svc_rqst *rqstp)
len = skb->len - sizeof(struct udphdr);
rqstp->rq_arg.len = len;
+ rqstp->rq_prot = IPPROTO_UDP;
- rqstp->rq_prot = IPPROTO_UDP;
-
- /* Get sender address */
- sin->sin_family = AF_INET;
- sin->sin_port = skb->h.uh->source;
- sin->sin_addr.s_addr = skb->nh.iph->saddr;
- rqstp->rq_daddr.addr.s_addr = skb->nh.iph->daddr;
+ svc_udp_get_sender_address(rqstp, skb);
if (skb_is_nonlinear(skb)) {
/* we have to copy */
_
Patches currently in -mm which might be from chuck.lever@xxxxxxxxxx are
origin.patch
knfsd-sunrpc-update-internal-api-separate-pmap-register-and-temp-sockets.patch
knfsd-sunrpc-allow-creating-an-rpc-service-without-registering-with-portmapper.patch
knfsd-sunrpc-cache-remote-peers-address-in-svc_sock.patch
knfsd-sunrpc-dont-set-msg_name-and-msg_namelen-when-calling-sock_recvmsg.patch
knfsd-sunrpc-use-sockaddr_storage-to-store-address-in-svc_deferred_req.patch
knfsd-sunrpc-add-a-function-to-format-the-address-in-an-svc_rqst-for-printing.patch
knfsd-sunrpc-provide-room-in-svc_rqst-for-larger-addresses.patch
knfsd-sunrpc-make-rq_daddr-field-address-version-independent.patch
knfsd-sunrpc-teach-svc_sendto-to-deal-with-ipv6-addresses.patch
knfsd-sunrpc-add-a-generic-function-to-see-if-the-peer-uses-a-secure-port.patch
knfsd-sunrpc-support-ipv6-addresses-in-svc_tcp_accept.patch
knfsd-sunrpc-support-ipv6-addresses-in-rpc-servers-udp-receive-path.patch
knfsd-sunrpc-fix-up-svc_create_socket-to-take-a-sockaddr-struct-length.patch
-
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