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Subject[PATCH 007 of 13] knfsd: SUNRPC: Provide room in svc_rqst for larger addresses

From: Chuck Lever <chuck.lever@oracle.com>

Expand the rq_addr field to allow it to contain larger addresses.

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
./fs/lockd/host.c | 4 ++--
./fs/lockd/svc4proc.c | 7 +++++--
./fs/lockd/svcproc.c | 7 +++++--
./fs/nfs/callback.c | 2 +-
./fs/nfs/callback_xdr.c | 4 ++--
./fs/nfsd/nfs4state.c | 18 +++++++++---------
./fs/nfsd/nfscache.c | 2 +-
./include/linux/sunrpc/svc.h | 2 +-
./net/sunrpc/svcauth_unix.c | 3 ++-
./net/sunrpc/svcsock.c | 14 ++++++++------
10 files changed, 36 insertions(+), 27 deletions(-)

diff .prev/fs/lockd/host.c ./fs/lockd/host.c
--- .prev/fs/lockd/host.c 2006-12-08 13:55:31.000000000 +1100
+++ ./fs/lockd/host.c 2006-12-08 13:55:35.000000000 +1100
@@ -192,9 +192,9 @@ struct nlm_host *
nlmsvc_lookup_host(struct svc_rqst *rqstp,
const char *hostname, int hostname_len)
{
- return nlm_lookup_host(1, &rqstp->rq_addr,
+ return nlm_lookup_host(1, (struct sockaddr_in *) &rqstp->rq_addr,
rqstp->rq_prot, rqstp->rq_vers,
- hostname, hostname_len);
+ hostname, hostname_len);
}

/*
diff .prev/fs/lockd/svc4proc.c ./fs/lockd/svc4proc.c
--- .prev/fs/lockd/svc4proc.c 2006-12-08 13:51:43.000000000 +1100
+++ ./fs/lockd/svc4proc.c 2006-12-08 13:55:35.000000000 +1100
@@ -224,7 +224,8 @@ nlm4svc_proc_granted(struct svc_rqst *rq
resp->cookie = argp->cookie;

dprintk("lockd: GRANTED called\n");
- resp->status = nlmclnt_grant(&rqstp->rq_addr, &argp->lock);
+ resp->status = nlmclnt_grant((struct sockaddr_in *) &rqstp->rq_addr,
+ &argp->lock);
dprintk("lockd: GRANTED status %d\n", ntohl(resp->status));
return rpc_success;
}
@@ -421,7 +422,9 @@ static __be32
nlm4svc_proc_sm_notify(struct svc_rqst *rqstp, struct nlm_reboot *argp,
void *resp)
{
- struct sockaddr_in saddr = rqstp->rq_addr;
+ struct sockaddr_in saddr;
+
+ memcpy(&saddr, &rqstp->rq_addr, sizeof(saddr));

dprintk("lockd: SM_NOTIFY called\n");
if (saddr.sin_addr.s_addr != htonl(INADDR_LOOPBACK)
diff .prev/fs/lockd/svcproc.c ./fs/lockd/svcproc.c
--- .prev/fs/lockd/svcproc.c 2006-12-08 13:51:11.000000000 +1100
+++ ./fs/lockd/svcproc.c 2006-12-08 13:55:35.000000000 +1100
@@ -253,7 +253,8 @@ nlmsvc_proc_granted(struct svc_rqst *rqs
resp->cookie = argp->cookie;

dprintk("lockd: GRANTED called\n");
- resp->status = nlmclnt_grant(&rqstp->rq_addr, &argp->lock);
+ resp->status = nlmclnt_grant((struct sockaddr_in *) &rqstp->rq_addr,
+ &argp->lock);
dprintk("lockd: GRANTED status %d\n", ntohl(resp->status));
return rpc_success;
}
@@ -452,7 +453,9 @@ static __be32
nlmsvc_proc_sm_notify(struct svc_rqst *rqstp, struct nlm_reboot *argp,
void *resp)
{
- struct sockaddr_in saddr = rqstp->rq_addr;
+ struct sockaddr_in saddr;
+
+ memcpy(&saddr, &rqstp->rq_addr, sizeof(saddr));

dprintk("lockd: SM_NOTIFY called\n");
if (saddr.sin_addr.s_addr != htonl(INADDR_LOOPBACK)
diff .prev/fs/nfs/callback.c ./fs/nfs/callback.c
--- .prev/fs/nfs/callback.c 2006-12-08 13:51:11.000000000 +1100
+++ ./fs/nfs/callback.c 2006-12-08 13:55:35.000000000 +1100
@@ -166,7 +166,7 @@ void nfs_callback_down(void)

static int nfs_callback_authenticate(struct svc_rqst *rqstp)
{
- struct sockaddr_in *addr = &rqstp->rq_addr;
+ struct sockaddr_in *addr = (struct sockaddr_in *) &rqstp->rq_addr;
struct nfs_client *clp;
char buf[RPC_MAX_ADDRBUFLEN];

diff .prev/fs/nfs/callback_xdr.c ./fs/nfs/callback_xdr.c
--- .prev/fs/nfs/callback_xdr.c 2006-12-08 13:55:31.000000000 +1100
+++ ./fs/nfs/callback_xdr.c 2006-12-08 13:55:35.000000000 +1100
@@ -176,7 +176,7 @@ static __be32 decode_getattr_args(struct
status = decode_fh(xdr, &args->fh);
if (unlikely(status != 0))
goto out;
- args->addr = &rqstp->rq_addr;
+ args->addr = (struct sockaddr_in *) &rqstp->rq_addr;
status = decode_bitmap(xdr, args->bitmap);
out:
dprintk("%s: exit with status = %d\n", __FUNCTION__, status);
@@ -188,7 +188,7 @@ static __be32 decode_recall_args(struct
__be32 *p;
__be32 status;

- args->addr = &rqstp->rq_addr;
+ args->addr = (struct sockaddr_in *) &rqstp->rq_addr;
status = decode_stateid(xdr, &args->stateid);
if (unlikely(status != 0))
goto out;
diff .prev/fs/nfsd/nfs4state.c ./fs/nfsd/nfs4state.c
--- .prev/fs/nfsd/nfs4state.c 2006-12-08 12:09:30.000000000 +1100
+++ ./fs/nfsd/nfs4state.c 2006-12-08 13:55:36.000000000 +1100
@@ -714,7 +714,7 @@ __be32
nfsd4_setclientid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
struct nfsd4_setclientid *setclid)
{
- __be32 ip_addr = rqstp->rq_addr.sin_addr.s_addr;
+ struct sockaddr_in *sin = (struct sockaddr_in *) &rqstp->rq_addr;
struct xdr_netobj clname = {
.len = setclid->se_namelen,
.data = setclid->se_name,
@@ -749,7 +749,7 @@ nfsd4_setclientid(struct svc_rqst *rqstp
*/
status = nfserr_clid_inuse;
if (!cmp_creds(&conf->cl_cred, &rqstp->rq_cred)
- || conf->cl_addr != ip_addr) {
+ || conf->cl_addr != sin->sin_addr.s_addr) {
printk("NFSD: setclientid: string in use by client"
"(clientid %08x/%08x)\n",
conf->cl_clientid.cl_boot, conf->cl_clientid.cl_id);
@@ -769,7 +769,7 @@ nfsd4_setclientid(struct svc_rqst *rqstp
if (new == NULL)
goto out;
copy_verf(new, &clverifier);
- new->cl_addr = ip_addr;
+ new->cl_addr = sin->sin_addr.s_addr;
copy_cred(&new->cl_cred,&rqstp->rq_cred);
gen_clid(new);
gen_confirm(new);
@@ -801,7 +801,7 @@ nfsd4_setclientid(struct svc_rqst *rqstp
if (new == NULL)
goto out;
copy_verf(new,&conf->cl_verifier);
- new->cl_addr = ip_addr;
+ new->cl_addr = sin->sin_addr.s_addr;
copy_cred(&new->cl_cred,&rqstp->rq_cred);
copy_clid(new, conf);
gen_confirm(new);
@@ -820,7 +820,7 @@ nfsd4_setclientid(struct svc_rqst *rqstp
if (new == NULL)
goto out;
copy_verf(new,&clverifier);
- new->cl_addr = ip_addr;
+ new->cl_addr = sin->sin_addr.s_addr;
copy_cred(&new->cl_cred,&rqstp->rq_cred);
gen_clid(new);
gen_confirm(new);
@@ -847,7 +847,7 @@ nfsd4_setclientid(struct svc_rqst *rqstp
if (new == NULL)
goto out;
copy_verf(new,&clverifier);
- new->cl_addr = ip_addr;
+ new->cl_addr = sin->sin_addr.s_addr;
copy_cred(&new->cl_cred,&rqstp->rq_cred);
gen_clid(new);
gen_confirm(new);
@@ -881,7 +881,7 @@ nfsd4_setclientid_confirm(struct svc_rqs
struct nfsd4_compound_state *cstate,
struct nfsd4_setclientid_confirm *setclientid_confirm)
{
- __be32 ip_addr = rqstp->rq_addr.sin_addr.s_addr;
+ struct sockaddr_in *sin = (struct sockaddr_in *) &rqstp->rq_addr;
struct nfs4_client *conf, *unconf;
nfs4_verifier confirm = setclientid_confirm->sc_confirm;
clientid_t * clid = &setclientid_confirm->sc_clientid;
@@ -900,9 +900,9 @@ nfsd4_setclientid_confirm(struct svc_rqs
unconf = find_unconfirmed_client(clid);

status = nfserr_clid_inuse;
- if (conf && conf->cl_addr != ip_addr)
+ if (conf && conf->cl_addr != sin->sin_addr.s_addr)
goto out;
- if (unconf && unconf->cl_addr != ip_addr)
+ if (unconf && unconf->cl_addr != sin->sin_addr.s_addr)
goto out;

if ((conf && unconf) &&
diff .prev/fs/nfsd/nfscache.c ./fs/nfsd/nfscache.c
--- .prev/fs/nfsd/nfscache.c 2006-12-08 13:55:31.000000000 +1100
+++ ./fs/nfsd/nfscache.c 2006-12-08 13:55:35.000000000 +1100
@@ -186,7 +186,7 @@ nfsd_cache_lookup(struct svc_rqst *rqstp
rp->c_state = RC_INPROG;
rp->c_xid = xid;
rp->c_proc = proc;
- rp->c_addr = rqstp->rq_addr;
+ memcpy(&rp->c_addr, &rqstp->rq_addr, sizeof(rp->c_addr));
rp->c_prot = proto;
rp->c_vers = vers;
rp->c_timestamp = jiffies;
diff .prev/include/linux/sunrpc/svc.h ./include/linux/sunrpc/svc.h
--- .prev/include/linux/sunrpc/svc.h 2006-12-08 13:51:11.000000000 +1100
+++ ./include/linux/sunrpc/svc.h 2006-12-08 13:55:35.000000000 +1100
@@ -197,7 +197,7 @@ struct svc_rqst {
struct list_head rq_list; /* idle list */
struct list_head rq_all; /* all threads list */
struct svc_sock * rq_sock; /* socket */
- struct sockaddr_in rq_addr; /* peer address */
+ struct sockaddr_storage rq_addr; /* peer address */
int rq_addrlen;

struct svc_serv * rq_server; /* RPC service definition */
diff .prev/net/sunrpc/svcauth_unix.c ./net/sunrpc/svcauth_unix.c
--- .prev/net/sunrpc/svcauth_unix.c 2006-12-08 12:09:31.000000000 +1100
+++ ./net/sunrpc/svcauth_unix.c 2006-12-08 13:55:35.000000000 +1100
@@ -421,6 +421,7 @@ svcauth_unix_info_release(void *info)
static int
svcauth_unix_set_client(struct svc_rqst *rqstp)
{
+ struct sockaddr_in *sin = (struct sockaddr_in *) &rqstp->rq_addr;
struct ip_map *ipm;

rqstp->rq_client = NULL;
@@ -430,7 +431,7 @@ svcauth_unix_set_client(struct svc_rqst
ipm = ip_map_cached_get(rqstp);
if (ipm == NULL)
ipm = ip_map_lookup(rqstp->rq_server->sv_program->pg_class,
- rqstp->rq_addr.sin_addr);
+ sin->sin_addr);

if (ipm == NULL)
return SVC_DENIED;
diff .prev/net/sunrpc/svcsock.c ./net/sunrpc/svcsock.c
--- .prev/net/sunrpc/svcsock.c 2006-12-08 13:53:39.000000000 +1100
+++ ./net/sunrpc/svcsock.c 2006-12-08 13:55:35.000000000 +1100
@@ -465,7 +465,7 @@ svc_sendto(struct svc_rqst *rqstp, struc
/* set the source and destination */
struct msghdr msg;
msg.msg_name = &rqstp->rq_addr;
- msg.msg_namelen = sizeof(rqstp->rq_addr);
+ msg.msg_namelen = rqstp->rq_addrlen;
msg.msg_iov = NULL;
msg.msg_iovlen = 0;
msg.msg_flags = MSG_MORE;
@@ -688,6 +688,7 @@ svc_write_space(struct sock *sk)
static int
svc_udp_recvfrom(struct svc_rqst *rqstp)
{
+ struct sockaddr_in *sin = (struct sockaddr_in *) &rqstp->rq_addr;
struct svc_sock *svsk = rqstp->rq_sock;
struct svc_serv *serv = svsk->sk_server;
struct sk_buff *skb;
@@ -743,9 +744,9 @@ svc_udp_recvfrom(struct svc_rqst *rqstp)
rqstp->rq_prot = IPPROTO_UDP;

/* Get sender address */
- rqstp->rq_addr.sin_family = AF_INET;
- rqstp->rq_addr.sin_port = skb->h.uh->source;
- rqstp->rq_addr.sin_addr.s_addr = skb->nh.iph->saddr;
+ sin->sin_family = AF_INET;
+ sin->sin_port = skb->h.uh->source;
+ sin->sin_addr.s_addr = skb->nh.iph->saddr;
rqstp->rq_daddr = skb->nh.iph->daddr;

if (skb_is_nonlinear(skb)) {
@@ -1276,7 +1277,8 @@ svc_sock_update_bufs(struct svc_serv *se
int
svc_recv(struct svc_rqst *rqstp, long timeout)
{
- struct svc_sock *svsk =NULL;
+ struct svc_sock *svsk = NULL;
+ struct sockaddr_in *sin = (struct sockaddr_in *) &rqstp->rq_addr;
struct svc_serv *serv = rqstp->rq_server;
struct svc_pool *pool = rqstp->rq_pool;
int len, i;
@@ -1371,7 +1373,7 @@ svc_recv(struct svc_rqst *rqstp, long ti
svsk->sk_lastrecv = get_seconds();
clear_bit(SK_OLD, &svsk->sk_flags);

- rqstp->rq_secure = ntohs(rqstp->rq_addr.sin_port) < 1024;
+ rqstp->rq_secure = ntohs(sin->sin_port) < 1024;
rqstp->rq_chandle.defer = svc_defer;

if (serv->sv_stats)
-
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