[PATCH 005 of 13] knfsd: SUNRPC: Use sockaddr_storage to store address in svc_deferred_req

NeilBrown
2006-12-08T12:02:06Z

Sockaddr_storage will allow us to store arbitrary socket addresses in
the svc_deferred_req struct.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Cc: Aurelien Charbon <aurelien.charbon@ext.bull.net>
Signed-off-by: Neil Brown <neilb@suse.de>

### Diffstat output
./include/linux/sunrpc/svc.h | 3 ++-
./net/sunrpc/svcsock.c | 6 ++++--
2 files changed, 6 insertions(+), 3 deletions(-)

diff .prev/include/linux/sunrpc/svc.h ./include/linux/sunrpc/svc.h
--- .prev/include/linux/sunrpc/svc.h 2006-12-08 13:49:44.000000000 +1100
+++ ./include/linux/sunrpc/svc.h 2006-12-08 13:49:44.000000000 +1100
@@ -289,7 +289,8 @@ static inline void svc_free_res_pages(st

struct svc_deferred_req {
u32 prot; /* protocol (UDP or TCP) */
- struct sockaddr_in addr;
+ struct sockaddr_storage addr;
+ int addrlen;
struct svc_sock *svsk; /* where reply must go */
__be32 daddr; /* where reply must come from */
struct cache_deferred_req handle;

diff .prev/net/sunrpc/svcsock.c ./net/sunrpc/svcsock.c
--- .prev/net/sunrpc/svcsock.c 2006-12-08 13:43:30.000000000 +1100
+++ ./net/sunrpc/svcsock.c 2006-12-08 13:49:44.000000000 +1100
@@ -1713,7 +1713,8 @@ svc_defer(struct cache_req *req)

dr->handle.owner = rqstp->rq_server;
dr->prot = rqstp->rq_prot;
- dr->addr = rqstp->rq_addr;
+ memcpy(&dr->addr, &rqstp->rq_addr, rqstp->rq_addrlen);
+ dr->addrlen = rqstp->rq_addrlen;
dr->daddr = rqstp->rq_daddr;
dr->argslen = rqstp->rq_arg.len >> 2;
memcpy(dr->args, rqstp->rq_arg.head[0].iov_base-skip, dr->argslen<<2);
@@ -1737,7 +1738,8 @@ static int svc_deferred_recv(struct svc_
rqstp->rq_arg.page_len = 0;
rqstp->rq_arg.len = dr->argslen<<2;
rqstp->rq_prot = dr->prot;
- rqstp->rq_addr = dr->addr;
+ memcpy(&rqstp->rq_addr, &dr->addr, dr->addrlen);
+ rqstp->rq_addrlen = dr->addrlen;
rqstp->rq_daddr = dr->daddr;
rqstp->rq_respages = rqstp->rq_pages;
return dr->argslen<<2;