/* Mapping from NFS error code to "errno" error code. */
#define errno_NFSERR_IO EIO
-static int nfs_stat_to_errno(int);
+static int nfs4_stat_to_errno(int);
/* NFSv4 COMPOUND tags are only wanted for debugging purposes */
#ifdef DEBUG
#define decode_link_maxsz (op_decode_hdr_maxsz + 5)
#define encode_symlink_maxsz (op_encode_hdr_maxsz + \
1 + nfs4_name_maxsz + \
- nfs4_path_maxsz + \
+ 1 + \
nfs4_fattr_maxsz)
#define decode_symlink_maxsz (op_decode_hdr_maxsz + 8)
#define encode_create_maxsz (op_encode_hdr_maxsz + \
#define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \
decode_putfh_maxsz + \
op_decode_hdr_maxsz + nfs4_fattr_bitmap_maxsz)
+#define NFS4_enc_fs_locations_sz \
+ (compound_encode_hdr_maxsz + \
+ encode_putfh_maxsz + \
+ encode_getattr_maxsz)
+#define NFS4_dec_fs_locations_sz \
+ (compound_decode_hdr_maxsz + \
+ decode_putfh_maxsz + \
+ op_decode_hdr_maxsz + \
+ nfs4_fattr_bitmap_maxsz)
static struct {
unsigned int mode;
if (iap->ia_valid & ATTR_MODE)
len += 4;
if (iap->ia_valid & ATTR_UID) {
- owner_namelen = nfs_map_uid_to_name(server->nfs4_state, iap->ia_uid, owner_name);
+ owner_namelen = nfs_map_uid_to_name(server->nfs_client, iap->ia_uid, owner_name);
if (owner_namelen < 0) {
printk(KERN_WARNING "nfs: couldn't resolve uid %d to string\n",
iap->ia_uid);
len += 4 + (XDR_QUADLEN(owner_namelen) << 2);
}
if (iap->ia_valid & ATTR_GID) {
- owner_grouplen = nfs_map_gid_to_group(server->nfs4_state, iap->ia_gid, owner_group);
+ owner_grouplen = nfs_map_gid_to_group(server->nfs_client, iap->ia_gid, owner_group);
if (owner_grouplen < 0) {
printk(KERN_WARNING "nfs4: couldn't resolve gid %d to string\n",
iap->ia_gid);
switch (create->ftype) {
case NF4LNK:
- RESERVE_SPACE(4 + create->u.symlink->len);
- WRITE32(create->u.symlink->len);
- WRITEMEM(create->u.symlink->name, create->u.symlink->len);
+ RESERVE_SPACE(4);
+ WRITE32(create->u.symlink.len);
+ xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len);
break;
case NF4BLK: case NF4CHR:
bitmask[1] & nfs4_fsinfo_bitmap[1]);
}
+static int encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask)
+{
+ return encode_getattr_two(xdr,
+ bitmask[0] & nfs4_fs_locations_bitmap[0],
+ bitmask[1] & nfs4_fs_locations_bitmap[1]);
+}
+
static int encode_getfh(struct xdr_stream *xdr)
{
uint32_t *p;
return 0;
}
-static int encode_renew(struct xdr_stream *xdr, const struct nfs4_client *client_stateid)
+static int encode_renew(struct xdr_stream *xdr, const struct nfs_client *client_stateid)
{
uint32_t *p;
return 0;
}
-static int encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs4_client *client_state)
+static int encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs_client *client_state)
{
uint32_t *p;
/*
* a RENEW request
*/
-static int nfs4_xdr_enc_renew(struct rpc_rqst *req, uint32_t *p, struct nfs4_client *clp)
+static int nfs4_xdr_enc_renew(struct rpc_rqst *req, uint32_t *p, struct nfs_client *clp)
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
/*
* a SETCLIENTID_CONFIRM request
*/
-static int nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, uint32_t *p, struct nfs4_client *clp)
+static int nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, uint32_t *p, struct nfs_client *clp)
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
return status;
}
+/*
+ * Encode FS_LOCATIONS request
+ */
+static int nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, uint32_t *p, struct nfs4_fs_locations_arg *args)
+{
+ struct xdr_stream xdr;
+ struct compound_hdr hdr = {
+ .nops = 3,
+ };
+ struct rpc_auth *auth = req->rq_task->tk_auth;
+ int replen;
+ int status;
+
+ xdr_init_encode(&xdr, &req->rq_snd_buf, p);
+ encode_compound_hdr(&xdr, &hdr);
+ if ((status = encode_putfh(&xdr, args->dir_fh)) != 0)
+ goto out;
+ if ((status = encode_lookup(&xdr, args->name)) != 0)
+ goto out;
+ if ((status = encode_fs_locations(&xdr, args->bitmask)) != 0)
+ goto out;
+ /* set up reply
+ * toplevel_status + OP_PUTFH + status
+ * + OP_LOOKUP + status + OP_GETATTR + status = 7
+ */
+ replen = (RPC_REPHDRSIZE + auth->au_rslack + 7) << 2;
+ xdr_inline_pages(&req->rq_rcv_buf, replen, &args->page,
+ 0, PAGE_SIZE);
+out:
+ return status;
+}
+
/*
* START OF "GENERIC" DECODE ROUTINES.
* These may look a little ugly since they are imported from a "generic"
} \
} while (0)
-static int decode_opaque_inline(struct xdr_stream *xdr, uint32_t *len, char **string)
+static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string)
{
uint32_t *p;
}
READ32(nfserr);
if (nfserr != NFS_OK)
- return -nfs_stat_to_errno(nfserr);
+ return -nfs4_stat_to_errno(nfserr);
return 0;
}
/* Dummy routine */
-static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs4_client *clp)
+static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp)
{
uint32_t *p;
- uint32_t strlen;
+ unsigned int strlen;
char *str;
READ_BUF(12);
return 0;
}
-static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fsid *fsid)
+static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid)
{
uint32_t *p;
return 0;
}
+static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid)
+{
+ uint32_t *p;
+
+ *fileid = 0;
+ if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U)))
+ return -EIO;
+ if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) {
+ READ_BUF(8);
+ READ64(*fileid);
+ bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID;
+ }
+ dprintk("%s: fileid=%Lu\n", __FUNCTION__, (unsigned long long)*fileid);
+ return 0;
+}
+
static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
{
uint32_t *p;
return status;
}
+static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path)
+{
+ int n;
+ uint32_t *p;
+ int status = 0;
+
+ READ_BUF(4);
+ READ32(n);
+ if (n < 0)
+ goto out_eio;
+ if (n == 0)
+ goto root_path;
+ dprintk("path ");
+ path->ncomponents = 0;
+ while (path->ncomponents < n) {
+ struct nfs4_string *component = &path->components[path->ncomponents];
+ status = decode_opaque_inline(xdr, &component->len, &component->data);
+ if (unlikely(status != 0))
+ goto out_eio;
+ if (path->ncomponents != n)
+ dprintk("/");
+ dprintk("%s", component->data);
+ if (path->ncomponents < NFS4_PATHNAME_MAXCOMPONENTS)
+ path->ncomponents++;
+ else {
+ dprintk("cannot parse %d components in path\n", n);
+ goto out_eio;
+ }
+ }
+out:
+ dprintk("\n");
+ return status;
+root_path:
+/* a root pathname is sent as a zero component4 */
+ path->ncomponents = 1;
+ path->components[0].len=0;
+ path->components[0].data=NULL;
+ dprintk("path /\n");
+ goto out;
+out_eio:
+ dprintk(" status %d", status);
+ status = -EIO;
+ goto out;
+}
+
+static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res)
+{
+ int n;
+ uint32_t *p;
+ int status = -EIO;
+
+ if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U)))
+ goto out;
+ status = 0;
+ if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS)))
+ goto out;
+ dprintk("%s: fsroot ", __FUNCTION__);
+ status = decode_pathname(xdr, &res->fs_path);
+ if (unlikely(status != 0))
+ goto out;
+ READ_BUF(4);
+ READ32(n);
+ if (n <= 0)
+ goto out_eio;
+ res->nlocations = 0;
+ while (res->nlocations < n) {
+ int m;
+ struct nfs4_fs_location *loc = &res->locations[res->nlocations];
+
+ READ_BUF(4);
+ READ32(m);
+ if (m <= 0)
+ goto out_eio;
+
+ loc->nservers = 0;
+ dprintk("%s: servers ", __FUNCTION__);
+ while (loc->nservers < m) {
+ struct nfs4_string *server = &loc->servers[loc->nservers];
+ status = decode_opaque_inline(xdr, &server->len, &server->data);
+ if (unlikely(status != 0))
+ goto out_eio;
+ dprintk("%s ", server->data);
+ if (loc->nservers < NFS4_FS_LOCATION_MAXSERVERS)
+ loc->nservers++;
+ else {
+ int i;
+ dprintk("%s: using first %d of %d servers returned for location %d\n", __FUNCTION__, NFS4_FS_LOCATION_MAXSERVERS, m, res->nlocations);
+ for (i = loc->nservers; i < m; i++) {
+ int len;
+ char *data;
+ status = decode_opaque_inline(xdr, &len, &data);
+ if (unlikely(status != 0))
+ goto out_eio;
+ }
+ }
+ }
+ status = decode_pathname(xdr, &loc->rootpath);
+ if (unlikely(status != 0))
+ goto out_eio;
+ if (res->nlocations < NFS4_FS_LOCATIONS_MAXENTRIES)
+ res->nlocations++;
+ }
+out:
+ dprintk("%s: fs_locations done, error = %d\n", __FUNCTION__, status);
+ return status;
+out_eio:
+ status = -EIO;
+ goto out;
+}
+
static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res)
{
uint32_t *p;
return 0;
}
-static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_client *clp, int32_t *uid)
+static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_client *clp, int32_t *uid)
{
uint32_t len, *p;
return 0;
}
-static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_client *clp, int32_t *gid)
+static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_client *clp, int32_t *gid)
{
uint32_t len, *p;
bitmap[2] = {0},
type;
int status, fmode = 0;
+ uint64_t fileid;
if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
goto xdr_error;
goto xdr_error;
if ((status = decode_attr_size(xdr, bitmap, &fattr->size)) != 0)
goto xdr_error;
- if ((status = decode_attr_fsid(xdr, bitmap, &fattr->fsid_u.nfs4)) != 0)
+ if ((status = decode_attr_fsid(xdr, bitmap, &fattr->fsid)) != 0)
goto xdr_error;
if ((status = decode_attr_fileid(xdr, bitmap, &fattr->fileid)) != 0)
goto xdr_error;
+ if ((status = decode_attr_fs_locations(xdr, bitmap, container_of(fattr,
+ struct nfs4_fs_locations,
+ fattr))) != 0)
+ goto xdr_error;
if ((status = decode_attr_mode(xdr, bitmap, &fattr->mode)) != 0)
goto xdr_error;
fattr->mode |= fmode;
if ((status = decode_attr_nlink(xdr, bitmap, &fattr->nlink)) != 0)
goto xdr_error;
- if ((status = decode_attr_owner(xdr, bitmap, server->nfs4_state, &fattr->uid)) != 0)
+ if ((status = decode_attr_owner(xdr, bitmap, server->nfs_client, &fattr->uid)) != 0)
goto xdr_error;
- if ((status = decode_attr_group(xdr, bitmap, server->nfs4_state, &fattr->gid)) != 0)
+ if ((status = decode_attr_group(xdr, bitmap, server->nfs_client, &fattr->gid)) != 0)
goto xdr_error;
if ((status = decode_attr_rdev(xdr, bitmap, &fattr->rdev)) != 0)
goto xdr_error;
goto xdr_error;
if ((status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime)) != 0)
goto xdr_error;
+ if ((status = decode_attr_mounted_on_fileid(xdr, bitmap, &fileid)) != 0)
+ goto xdr_error;
+ if (fattr->fileid == 0 && fileid != 0)
+ fattr->fileid = fileid;
if ((status = verify_attr_len(xdr, savep, attrlen)) == 0)
fattr->valid = NFS_ATTR_FATTR | NFS_ATTR_FATTR_V3 | NFS_ATTR_FATTR_V4;
xdr_error:
if (decode_space_limit(xdr, &res->maxsize) < 0)
return -EIO;
}
- return decode_ace(xdr, NULL, res->server->nfs4_state);
+ return decode_ace(xdr, NULL, res->server->nfs_client);
}
static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res)
struct kvec *iov = rcvbuf->head;
unsigned int nr, pglen = rcvbuf->page_len;
uint32_t *end, *entry, *p, *kaddr;
- uint32_t len, attrlen;
+ uint32_t len, attrlen, xlen;
int hdrlen, recvd, status;
status = decode_op_hdr(xdr, OP_READDIR);
BUG_ON(pglen + readdir->pgbase > PAGE_CACHE_SIZE);
kaddr = p = (uint32_t *) kmap_atomic(page, KM_USER0);
- end = (uint32_t *) ((char *)p + pglen + readdir->pgbase);
+ end = p + ((pglen + readdir->pgbase) >> 2);
entry = p;
for (nr = 0; *p++; nr++) {
- if (p + 3 > end)
+ if (end - p < 3)
goto short_pkt;
dprintk("cookie = %Lu, ", *((unsigned long long *)p));
p += 2; /* cookie */
printk(KERN_WARNING "NFS: giant filename in readdir (len 0x%x)\n", len);
goto err_unmap;
}
- dprintk("filename = %*s\n", len, (char *)p);
- p += XDR_QUADLEN(len);
- if (p + 1 > end)
+ xlen = XDR_QUADLEN(len);
+ if (end - p < xlen + 1)
goto short_pkt;
+ dprintk("filename = %*s\n", len, (char *)p);
+ p += xlen;
len = ntohl(*p++); /* bitmap length */
- p += len;
- if (p + 1 > end)
+ if (end - p < len + 1)
goto short_pkt;
+ p += len;
attrlen = XDR_QUADLEN(ntohl(*p++));
- p += attrlen; /* attributes */
- if (p + 2 > end)
+ if (end - p < attrlen + 2)
goto short_pkt;
+ p += attrlen; /* attributes */
entry = p;
}
if (!nr && (entry[0] != 0 || entry[1] == 0))
attrlen, recvd);
return -EINVAL;
}
- if (attrlen <= *acl_len)
- xdr_read_pages(xdr, attrlen);
+ xdr_read_pages(xdr, attrlen);
*acl_len = attrlen;
} else
status = -EOPNOTSUPP;
return 0;
}
-static int decode_setclientid(struct xdr_stream *xdr, struct nfs4_client *clp)
+static int decode_setclientid(struct xdr_stream *xdr, struct nfs_client *clp)
{
uint32_t *p;
uint32_t opnum;
READ_BUF(len);
return -NFSERR_CLID_INUSE;
} else
- return -nfs_stat_to_errno(nfserr);
+ return -nfs4_stat_to_errno(nfserr);
return 0;
}
if (!status)
status = decode_fsinfo(&xdr, fsinfo);
if (!status)
- status = -nfs_stat_to_errno(hdr.status);
+ status = -nfs4_stat_to_errno(hdr.status);
return status;
}
* a SETCLIENTID request
*/
static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, uint32_t *p,
- struct nfs4_client *clp)
+ struct nfs_client *clp)
{
struct xdr_stream xdr;
struct compound_hdr hdr;
if (!status)
status = decode_setclientid(&xdr, clp);
if (!status)
- status = -nfs_stat_to_errno(hdr.status);
+ status = -nfs4_stat_to_errno(hdr.status);
return status;
}
if (!status)
status = decode_fsinfo(&xdr, fsinfo);
if (!status)
- status = -nfs_stat_to_errno(hdr.status);
+ status = -nfs4_stat_to_errno(hdr.status);
return status;
}
return status;
}
+/*
+ * FS_LOCATIONS request
+ */
+static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, uint32_t *p, struct nfs4_fs_locations *res)
+{
+ struct xdr_stream xdr;
+ struct compound_hdr hdr;
+ int status;
+
+ xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
+ status = decode_compound_hdr(&xdr, &hdr);
+ if (status != 0)
+ goto out;
+ if ((status = decode_putfh(&xdr)) != 0)
+ goto out;
+ if ((status = decode_lookup(&xdr)) != 0)
+ goto out;
+ xdr_enter_page(&xdr, PAGE_SIZE);
+ status = decode_getfattr(&xdr, &res->fattr, res->server);
+out:
+ return status;
+}
+
uint32_t *nfs4_decode_dirent(uint32_t *p, struct nfs_entry *entry, int plus)
{
uint32_t bitmap[2] = {0};
* This one is used jointly by NFSv2 and NFSv3.
*/
static int
-nfs_stat_to_errno(int stat)
+nfs4_stat_to_errno(int stat)
{
int i;
for (i = 0; nfs_errtbl[i].stat != -1; i++) {
PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn),
PROC(GETACL, enc_getacl, dec_getacl),
PROC(SETACL, enc_setacl, dec_setacl),
+ PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations),
};
struct rpc_version nfs_version4 = {
git.openpandora.org / pandora-kernel.git / blobdiff