@@ -41,6 +41,7 @@
#include <linux/utsname.h>
#include <linux/pagemap.h>
#include <linux/sunrpc/svcauth_gss.h>
+#include <linux/sunrpc/addr.h>
#include "idmap.h"
#include "acl.h"
@@ -1743,11 +1744,58 @@ static __be32 nfsd4_decode_reclaim_complete(struct nfsd4_compoundargs *argp, str
DECODE_TAIL;
}
+static __be32 nfsd4_decode_nl4_server(struct nfsd4_compoundargs *argp,
+ struct nl4_server *ns)
+{
+ DECODE_HEAD;
+ struct nfs42_netaddr *naddr;
+
+ READ_BUF(4);
+ ns->nl4_type = be32_to_cpup(p++);
+
+ /* currently support for 1 inter-server source server */
+ switch (ns->nl4_type) {
+ case NL4_NAME:
+ case NL4_URL:
+ READ_BUF(4);
+ ns->u.nl4_str_sz = be32_to_cpup(p++);
+ if (ns->u.nl4_str_sz > NFS4_OPAQUE_LIMIT)
+ goto xdr_error;
+
+ READ_BUF(ns->u.nl4_str_sz);
+ COPYMEM(ns->u.nl4_str,
+ ns->u.nl4_str_sz);
+ break;
+ case NL4_NETADDR:
+ naddr = &ns->u.nl4_addr;
+
+ READ_BUF(4);
+ naddr->netid_len = be32_to_cpup(p++);
+ if (naddr->netid_len > RPCBIND_MAXNETIDLEN)
+ goto xdr_error;
+
+ READ_BUF(naddr->netid_len + 4); /* 4 for uaddr len */
+ COPYMEM(naddr->netid, naddr->netid_len);
+
+ naddr->addr_len = be32_to_cpup(p++);
+ if (naddr->addr_len > RPCBIND_MAXUADDRLEN)
+ goto xdr_error;
+
+ READ_BUF(naddr->addr_len);
+ COPYMEM(naddr->addr, naddr->addr_len);
+ break;
+ default:
+ goto xdr_error;
+ }
+ DECODE_TAIL;
+}
+
static __be32
nfsd4_decode_copy(struct nfsd4_compoundargs *argp, struct nfsd4_copy *copy)
{
DECODE_HEAD;
- unsigned int tmp;
+ struct nl4_server *ns;
+ int i, count;
status = nfsd4_decode_stateid(argp, ©->cp_src_stateid);
if (status)
@@ -1762,8 +1810,24 @@ static __be32 nfsd4_decode_reclaim_complete(struct nfsd4_compoundargs *argp, str
p = xdr_decode_hyper(p, ©->cp_count);
copy->cp_consecutive = be32_to_cpup(p++);
copy->cp_synchronous = be32_to_cpup(p++);
- tmp = be32_to_cpup(p); /* Source server list not supported */
+ count = be32_to_cpup(p++);
+
+ if (count == 0) /* intra-server copy */
+ goto intra;
+ /* decode all the supplied server addresses but use first */
+ copy->cp_src = kmalloc(count * sizeof(struct nl4_server), GFP_KERNEL);
+ if (copy->cp_src == NULL)
+ return nfserrno(-ENOMEM);
+
+ ns = copy->cp_src;
+ for (i = 0; i < count; i++) {
+ status = nfsd4_decode_nl4_server(argp, ns);
+ if (status)
+ return status;
+ ns++;
+ }
+intra:
DECODE_TAIL;
}
@@ -4232,6 +4296,9 @@ static __be32 nfsd4_encode_readv(struct nfsd4_compoundres *resp,
p = xdr_reserve_space(&resp->xdr, 4 + 4);
*p++ = cpu_to_be32(copy->cp_consecutive);
*p++ = cpu_to_be32(copy->cp_synchronous);
+
+ /* allocated in nfsd4_decode_copy */
+ kfree(copy->cp_src);
return 0;
}
@@ -517,6 +517,7 @@ struct nfsd4_copy {
u64 cp_src_pos;
u64 cp_dst_pos;
u64 cp_count;
+ struct nl4_server *cp_src;
/* both */
bool cp_consecutive;