((3+NFS4_FHSIZE) >> 2))
#define encode_getattr_maxsz (op_encode_hdr_maxsz + 3)
#define nfs4_name_maxsz (1 + ((3 + NFS4_MAXNAMLEN) >> 2))
+#define nfs4_path_maxsz (1 + ((3 + NFS4_MAXPATHLEN) >> 2))
#define nfs4_fattr_bitmap_maxsz (36 + 2 * nfs4_name_maxsz)
#define decode_getattr_maxsz (op_decode_hdr_maxsz + 3 + \
nfs4_fattr_bitmap_maxsz)
#define encode_link_maxsz (op_encode_hdr_maxsz + \
nfs4_name_maxsz)
#define decode_link_maxsz (op_decode_hdr_maxsz + 5)
+#define encode_symlink_maxsz (op_encode_hdr_maxsz + \
+ 1 + nfs4_name_maxsz + \
+ nfs4_path_maxsz + \
+ nfs4_fattr_bitmap_maxsz)
+#define decode_symlink_maxsz (op_decode_hdr_maxsz + 8)
#define encode_create_maxsz (op_encode_hdr_maxsz + \
- 2 + 2 * nfs4_name_maxsz + \
+ 2 + nfs4_name_maxsz + \
nfs4_fattr_bitmap_maxsz)
#define decode_create_maxsz (op_decode_hdr_maxsz + 8)
+#define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4)
+#define decode_delegreturn_maxsz (op_decode_hdr_maxsz)
#define NFS4_enc_compound_sz (1024) /* XXX: large enough? */
#define NFS4_dec_compound_sz (1024) /* XXX: large enough? */
#define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \
#define NFS4_dec_open_confirm_sz (compound_decode_hdr_maxsz + \
decode_putfh_maxsz + \
op_decode_hdr_maxsz + 4)
-#define NFS4_enc_open_reclaim_sz (compound_encode_hdr_maxsz + \
+#define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \
encode_putfh_maxsz + \
op_encode_hdr_maxsz + \
- 11 + \
- encode_getattr_maxsz)
-#define NFS4_dec_open_reclaim_sz (compound_decode_hdr_maxsz + \
+ 11)
+#define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \
decode_putfh_maxsz + \
op_decode_hdr_maxsz + \
- 4 + 5 + 2 + 3 + \
- decode_getattr_maxsz)
+ 4 + 5 + 2 + 3)
#define NFS4_enc_open_downgrade_sz \
(compound_encode_hdr_maxsz + \
encode_putfh_maxsz + \
decode_savefh_maxsz + \
decode_putfh_maxsz + \
decode_link_maxsz)
+#define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \
+ encode_putfh_maxsz + \
+ encode_symlink_maxsz + \
+ encode_getattr_maxsz + \
+ encode_getfh_maxsz)
+#define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \
+ decode_putfh_maxsz + \
+ decode_symlink_maxsz + \
+ decode_getattr_maxsz + \
+ decode_getfh_maxsz)
#define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \
encode_putfh_maxsz + \
encode_create_maxsz + \
encode_getattr_maxsz)
#define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \
decode_getattr_maxsz)
+#define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \
+ encode_putfh_maxsz + \
+ encode_delegreturn_maxsz)
+#define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \
+ decode_delegreturn_maxsz)
static struct {
unsigned int mode;
BUG_ON(!p); \
} while (0)
+static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str)
+{
+ uint32_t *p;
+
+ p = xdr_reserve_space(xdr, 4 + len);
+ BUG_ON(p == NULL);
+ xdr_encode_opaque(p, str, len);
+}
+
static int encode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr)
{
uint32_t *p;
return 0;
}
+static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf)
+{
+ uint32_t *p;
+
+ p = xdr_reserve_space(xdr, NFS4_VERIFIER_SIZE);
+ BUG_ON(p == NULL);
+ xdr_encode_opaque_fixed(p, verf->data, NFS4_VERIFIER_SIZE);
+}
+
static int encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server)
{
char owner_name[IDMAP_NAMESZ];
return 0;
}
-static int encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg)
+static void encode_share_access(struct xdr_stream *xdr, int open_flags)
{
- int status;
uint32_t *p;
- /*
- * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4,
- * owner 4, opentype 4 = 36
- */
- RESERVE_SPACE(36);
- WRITE32(OP_OPEN);
- WRITE32(arg->seqid);
- switch (arg->share_access) {
+ RESERVE_SPACE(8);
+ switch (open_flags & (FMODE_READ|FMODE_WRITE)) {
case FMODE_READ:
WRITE32(NFS4_SHARE_ACCESS_READ);
break;
default:
BUG();
}
- WRITE32(0); /* for linux, share_deny = 0 always */
+ WRITE32(0); /* for linux, share_deny = 0 always */
+}
+
+static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg)
+{
+ uint32_t *p;
+ /*
+ * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4,
+ * owner 4 = 32
+ */
+ RESERVE_SPACE(8);
+ WRITE32(OP_OPEN);
+ WRITE32(arg->seqid);
+ encode_share_access(xdr, arg->open_flags);
+ RESERVE_SPACE(16);
WRITE64(arg->clientid);
WRITE32(4);
WRITE32(arg->id);
- WRITE32(arg->opentype);
+}
- if (arg->opentype == NFS4_OPEN_CREATE) {
- if (arg->createmode == NFS4_CREATE_EXCLUSIVE) {
- RESERVE_SPACE(12);
- WRITE32(arg->createmode);
- WRITEMEM(arg->u.verifier.data, sizeof(arg->u.verifier.data));
- }
- else if (arg->u.attrs) {
- RESERVE_SPACE(4);
- WRITE32(arg->createmode);
- if ((status = encode_attrs(xdr, arg->u.attrs, arg->server)))
- return status;
- }
- else {
- RESERVE_SPACE(12);
- WRITE32(arg->createmode);
- WRITE32(0);
- WRITE32(0);
- }
+static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg)
+{
+ uint32_t *p;
+
+ RESERVE_SPACE(4);
+ switch(arg->open_flags & O_EXCL) {
+ case 0:
+ WRITE32(NFS4_CREATE_UNCHECKED);
+ encode_attrs(xdr, arg->u.attrs, arg->server);
+ break;
+ default:
+ WRITE32(NFS4_CREATE_EXCLUSIVE);
+ encode_nfs4_verifier(xdr, &arg->u.verifier);
}
+}
- RESERVE_SPACE(8 + arg->name->len);
- WRITE32(NFS4_OPEN_CLAIM_NULL);
- WRITE32(arg->name->len);
- WRITEMEM(arg->name->name, arg->name->len);
+static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg)
+{
+ uint32_t *p;
- return 0;
+ RESERVE_SPACE(4);
+ switch (arg->open_flags & O_CREAT) {
+ case 0:
+ WRITE32(NFS4_OPEN_NOCREATE);
+ break;
+ default:
+ BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL);
+ WRITE32(NFS4_OPEN_CREATE);
+ encode_createmode(xdr, arg);
+ }
}
-static int encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg)
+static inline void encode_delegation_type(struct xdr_stream *xdr, int delegation_type)
{
uint32_t *p;
- RESERVE_SPACE(8+sizeof(arg->stateid.data));
- WRITE32(OP_OPEN_CONFIRM);
- WRITEMEM(arg->stateid.data, sizeof(arg->stateid.data));
- WRITE32(arg->seqid);
+ RESERVE_SPACE(4);
+ switch (delegation_type) {
+ case 0:
+ WRITE32(NFS4_OPEN_DELEGATE_NONE);
+ break;
+ case FMODE_READ:
+ WRITE32(NFS4_OPEN_DELEGATE_READ);
+ break;
+ case FMODE_WRITE|FMODE_READ:
+ WRITE32(NFS4_OPEN_DELEGATE_WRITE);
+ break;
+ default:
+ BUG();
+ }
+}
- return 0;
+static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name)
+{
+ uint32_t *p;
+
+ RESERVE_SPACE(4);
+ WRITE32(NFS4_OPEN_CLAIM_NULL);
+ encode_string(xdr, name->len, name->name);
}
+static inline void encode_claim_previous(struct xdr_stream *xdr, int type)
+{
+ uint32_t *p;
+
+ RESERVE_SPACE(4);
+ WRITE32(NFS4_OPEN_CLAIM_PREVIOUS);
+ encode_delegation_type(xdr, type);
+}
-static int encode_open_reclaim(struct xdr_stream *xdr, const struct nfs_open_reclaimargs *arg)
+static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid)
{
uint32_t *p;
- /*
- * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4,
- * owner 4, opentype 4, claim 4, delegation_type 4 = 44
- */
- RESERVE_SPACE(44);
- WRITE32(OP_OPEN);
- WRITE32(arg->seqid);
- switch (arg->share_access) {
- case FMODE_READ:
- WRITE32(NFS4_SHARE_ACCESS_READ);
+ RESERVE_SPACE(4+sizeof(stateid->data));
+ WRITE32(NFS4_OPEN_CLAIM_DELEGATE_CUR);
+ WRITEMEM(stateid->data, sizeof(stateid->data));
+ encode_string(xdr, name->len, name->name);
+}
+
+static int encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg)
+{
+ encode_openhdr(xdr, arg);
+ encode_opentype(xdr, arg);
+ switch (arg->claim) {
+ case NFS4_OPEN_CLAIM_NULL:
+ encode_claim_null(xdr, arg->name);
break;
- case FMODE_WRITE:
- WRITE32(NFS4_SHARE_ACCESS_WRITE);
+ case NFS4_OPEN_CLAIM_PREVIOUS:
+ encode_claim_previous(xdr, arg->u.delegation_type);
break;
- case FMODE_READ|FMODE_WRITE:
- WRITE32(NFS4_SHARE_ACCESS_BOTH);
+ case NFS4_OPEN_CLAIM_DELEGATE_CUR:
+ encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation);
break;
default:
BUG();
}
- WRITE32(0); /* for linux, share_deny = 0 always */
- WRITE64(arg->clientid);
- WRITE32(4);
- WRITE32(arg->id);
- WRITE32(NFS4_OPEN_NOCREATE);
- WRITE32(NFS4_OPEN_CLAIM_PREVIOUS);
- WRITE32(NFS4_OPEN_DELEGATE_NONE);
+ return 0;
+}
+
+static int encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg)
+{
+ uint32_t *p;
+
+ RESERVE_SPACE(8+sizeof(arg->stateid.data));
+ WRITE32(OP_OPEN_CONFIRM);
+ WRITEMEM(arg->stateid.data, sizeof(arg->stateid.data));
+ WRITE32(arg->seqid);
+
return 0;
}
{
uint32_t *p;
- RESERVE_SPACE(16+sizeof(arg->stateid.data));
+ RESERVE_SPACE(8+sizeof(arg->stateid.data));
WRITE32(OP_OPEN_DOWNGRADE);
WRITEMEM(arg->stateid.data, sizeof(arg->stateid.data));
WRITE32(arg->seqid);
- WRITE32(arg->share_access);
- /* No deny modes */
- WRITE32(0);
-
+ encode_share_access(xdr, arg->open_flags);
return 0;
}
return 0;
}
-static void encode_stateid(struct xdr_stream *xdr, struct nfs4_state *state, fl_owner_t lockowner)
+static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx)
{
extern nfs4_stateid zero_stateid;
nfs4_stateid stateid;
uint32_t *p;
RESERVE_SPACE(16);
- if (state != NULL) {
- nfs4_copy_stateid(&stateid, state, lockowner);
+ if (ctx->state != NULL) {
+ nfs4_copy_stateid(&stateid, ctx->state, ctx->lockowner);
WRITEMEM(stateid.data, sizeof(stateid.data));
} else
WRITEMEM(zero_stateid.data, sizeof(zero_stateid.data));
RESERVE_SPACE(4);
WRITE32(OP_READ);
- encode_stateid(xdr, args->state, args->lockowner);
+ encode_stateid(xdr, args->context);
RESERVE_SPACE(12);
WRITE64(args->offset);
WRITE32(OP_READDIR);
WRITE64(readdir->cookie);
WRITEMEM(readdir->verifier.data, sizeof(readdir->verifier.data));
- WRITE32(readdir->count >> 5); /* meaningless "dircount" field */
+ WRITE32(readdir->count >> 1); /* We're not doing readdirplus */
WRITE32(readdir->count);
WRITE32(2);
WRITE32(FATTR4_WORD0_FILEID);
static int encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req)
{
struct rpc_auth *auth = req->rq_task->tk_auth;
- unsigned int count = readlink->count - 5;
unsigned int replen;
uint32_t *p;
/* set up reply kvec
* toplevel_status + taglen + rescount + OP_PUTFH + status
- * + OP_READLINK + status = 7
+ * + OP_READLINK + status + string length = 8
*/
- replen = (RPC_REPHDRSIZE + auth->au_rslack + 7) << 2;
- xdr_inline_pages(&req->rq_rcv_buf, replen, readlink->pages, 0, count);
+ replen = (RPC_REPHDRSIZE + auth->au_rslack + 8) << 2;
+ xdr_inline_pages(&req->rq_rcv_buf, replen, readlink->pages,
+ readlink->pgbase, readlink->pglen);
return 0;
}
static int encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid)
{
- uint32_t total_len;
- uint32_t len1, len2, len3;
uint32_t *p;
- len1 = strlen(setclientid->sc_name);
- len2 = strlen(setclientid->sc_netid);
- len3 = strlen(setclientid->sc_uaddr);
- total_len = XDR_QUADLEN(len1) + XDR_QUADLEN(len2) + XDR_QUADLEN(len3);
- total_len = (total_len << 2) + 24 + sizeof(setclientid->sc_verifier.data);
-
- RESERVE_SPACE(total_len);
+ RESERVE_SPACE(4 + sizeof(setclientid->sc_verifier->data));
WRITE32(OP_SETCLIENTID);
- WRITEMEM(setclientid->sc_verifier.data, sizeof(setclientid->sc_verifier.data));
- WRITE32(len1);
- WRITEMEM(setclientid->sc_name, len1);
+ WRITEMEM(setclientid->sc_verifier->data, sizeof(setclientid->sc_verifier->data));
+
+ encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name);
+ RESERVE_SPACE(4);
WRITE32(setclientid->sc_prog);
- WRITE32(len2);
- WRITEMEM(setclientid->sc_netid, len2);
- WRITE32(len3);
- WRITEMEM(setclientid->sc_uaddr, len3);
+ encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid);
+ encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr);
+ RESERVE_SPACE(4);
WRITE32(setclientid->sc_cb_ident);
return 0;
RESERVE_SPACE(4);
WRITE32(OP_WRITE);
- encode_stateid(xdr, args->state, args->lockowner);
+ encode_stateid(xdr, args->context);
RESERVE_SPACE(16);
WRITE64(args->offset);
return 0;
}
+
+static int encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid)
+{
+ uint32_t *p;
+
+ RESERVE_SPACE(20);
+
+ WRITE32(OP_DELEGRETURN);
+ WRITEMEM(stateid->data, sizeof(stateid->data));
+ return 0;
+
+}
/*
* END OF "GENERIC" ENCODE ROUTINES.
*/
goto out;
if ((status = encode_create(&xdr, args)) != 0)
goto out;
- if ((status = encode_getfattr(&xdr, args->bitmask)) != 0)
+ if ((status = encode_getfh(&xdr)) != 0)
goto out;
- status = encode_getfh(&xdr);
+ status = encode_getfattr(&xdr, args->bitmask);
out:
return status;
}
+/*
+ * Encode SYMLINK request
+ */
+static int nfs4_xdr_enc_symlink(struct rpc_rqst *req, uint32_t *p, const struct nfs4_create_arg *args)
+{
+ return nfs4_xdr_enc_create(req, p, args);
+}
+
/*
* Encode GETATTR request
*/
status = encode_open(&xdr, args);
if (status)
goto out;
- status = encode_getfattr(&xdr, args->bitmask);
+ status = encode_getfh(&xdr);
if (status)
goto out;
- status = encode_getfh(&xdr);
+ status = encode_getfattr(&xdr, args->bitmask);
out:
return status;
}
}
/*
- * Encode an OPEN request
+ * Encode an OPEN request with no attributes.
*/
-static int nfs4_xdr_enc_open_reclaim(struct rpc_rqst *req, uint32_t *p, struct nfs_open_reclaimargs *args)
+static int nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, uint32_t *p, struct nfs_openargs *args)
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 3,
+ .nops = 2,
};
int status;
status = encode_putfh(&xdr, args->fh);
if (status)
goto out;
- status = encode_open_reclaim(&xdr, args);
- if (status)
- goto out;
- status = encode_getfattr(&xdr, args->bitmask);
+ status = encode_open(&xdr, args);
out:
return status;
}
return status;
}
+/*
+ * DELEGRETURN request
+ */
+static int nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, uint32_t *p, const struct nfs4_delegreturnargs *args)
+{
+ struct xdr_stream xdr;
+ struct compound_hdr hdr = {
+ .nops = 2,
+ };
+ int status;
+
+ xdr_init_encode(&xdr, &req->rq_snd_buf, p);
+ encode_compound_hdr(&xdr, &hdr);
+ if ((status = encode_putfh(&xdr, args->fhandle)) == 0)
+ status = encode_delegreturn(&xdr, args->stateid);
+ 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)
+{
+ uint32_t *p;
+
+ READ_BUF(4);
+ READ32(*len);
+ READ_BUF(*len);
+ *string = (char *)p;
+ return 0;
+}
+
static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr)
{
uint32_t *p;
return 0;
}
+/* Dummy routine */
+static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs4_client *clp)
+{
+ uint32_t *p;
+ uint32_t strlen;
+ char *str;
+
+ READ_BUF(12);
+ return decode_opaque_inline(xdr, &strlen, &str);
+}
+
static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap)
{
uint32_t bmlen, *p;
return decode_op_hdr(xdr, OP_LOOKUP);
}
+/* This is too sick! */
+static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize)
+{
+ uint32_t *p;
+ uint32_t limit_type, nblocks, blocksize;
+
+ READ_BUF(12);
+ READ32(limit_type);
+ switch (limit_type) {
+ case 1:
+ READ64(*maxsize);
+ break;
+ case 2:
+ READ32(nblocks);
+ READ32(blocksize);
+ *maxsize = (uint64_t)nblocks * (uint64_t)blocksize;
+ }
+ return 0;
+}
+
+static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res)
+{
+ uint32_t *p;
+ uint32_t delegation_type;
+
+ READ_BUF(4);
+ READ32(delegation_type);
+ if (delegation_type == NFS4_OPEN_DELEGATE_NONE) {
+ res->delegation_type = 0;
+ return 0;
+ }
+ READ_BUF(20);
+ COPYMEM(res->delegation.data, sizeof(res->delegation.data));
+ READ32(res->do_recall);
+ switch (delegation_type) {
+ case NFS4_OPEN_DELEGATE_READ:
+ res->delegation_type = FMODE_READ;
+ break;
+ case NFS4_OPEN_DELEGATE_WRITE:
+ res->delegation_type = FMODE_WRITE|FMODE_READ;
+ if (decode_space_limit(xdr, &res->maxsize) < 0)
+ return -EIO;
+ }
+ return decode_ace(xdr, NULL, res->server->nfs4_state);
+}
+
static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res)
{
uint32_t *p;
- uint32_t bmlen, delegation_type;
+ uint32_t bmlen;
int status;
status = decode_op_hdr(xdr, OP_OPEN);
if (bmlen > 10)
goto xdr_error;
- READ_BUF((bmlen << 2) + 4);
+ READ_BUF(bmlen << 2);
p += bmlen;
- READ32(delegation_type);
- if (delegation_type == NFS4_OPEN_DELEGATE_NONE)
- return 0;
+ return decode_delegation(xdr, res);
xdr_error:
printk(KERN_NOTICE "%s: xdr error!\n", __FUNCTION__);
return -EIO;
struct kvec *iov = rcvbuf->head;
unsigned int nr, pglen = rcvbuf->page_len;
uint32_t *end, *entry, *p, *kaddr;
- uint32_t len, attrlen, word;
- int i, hdrlen, recvd, status;
+ uint32_t len, attrlen;
+ int hdrlen, recvd, status;
status = decode_op_hdr(xdr, OP_READDIR);
if (status)
for (nr = 0; *p++; nr++) {
if (p + 3 > end)
goto short_pkt;
- p += 2; /* cookie */
- len = ntohl(*p++); /* filename length */
+ p += 2; /* cookie */
+ len = ntohl(*p++); /* filename length */
if (len > NFS4_MAXNAMLEN) {
printk(KERN_WARNING "NFS: giant filename in readdir (len 0x%x)\n", len);
goto err_unmap;
}
-
p += XDR_QUADLEN(len);
if (p + 1 > end)
goto short_pkt;
- len = ntohl(*p++); /* bitmap length */
- if (len > 10) {
- printk(KERN_WARNING "NFS: giant bitmap in readdir (len 0x%x)\n", len);
- goto err_unmap;
- }
- if (p + len + 1 > end)
- goto short_pkt;
- attrlen = 0;
- for (i = 0; i < len; i++) {
- word = ntohl(*p++);
- if (!word)
- continue;
- else if (i == 0 && word == FATTR4_WORD0_FILEID) {
- attrlen = 8;
- continue;
- }
- printk(KERN_WARNING "NFS: unexpected bitmap word in readdir (0x%x)\n", word);
- goto err_unmap;
- }
- if (ntohl(*p++) != attrlen) {
- printk(KERN_WARNING "NFS: unexpected attrlen in readdir\n");
- goto err_unmap;
- }
- p += XDR_QUADLEN(attrlen);
+ len = ntohl(*p++); /* bitmap length */
+ p += len;
if (p + 1 > end)
goto short_pkt;
+ attrlen = XDR_QUADLEN(ntohl(*p++));
+ p += attrlen; /* attributes */
+ if (p + 2 > end)
+ goto short_pkt;
+ entry = p;
}
if (!nr && (entry[0] != 0 || entry[1] == 0))
goto short_pkt;
{
struct xdr_buf *rcvbuf = &req->rq_rcv_buf;
struct kvec *iov = rcvbuf->head;
- uint32_t *strlen;
- unsigned int hdrlen, len;
- char *string;
+ int hdrlen, len, recvd;
+ uint32_t *p;
+ char *kaddr;
int status;
status = decode_op_hdr(xdr, OP_READLINK);
if (status)
return status;
+ /* Convert length of symlink */
+ READ_BUF(4);
+ READ32(len);
+ if (len >= rcvbuf->page_len || len <= 0) {
+ dprintk(KERN_WARNING "nfs: server returned giant symlink!\n");
+ return -ENAMETOOLONG;
+ }
hdrlen = (char *) xdr->p - (char *) iov->iov_base;
- if (iov->iov_len > hdrlen) {
- dprintk("NFS: READLINK header is short. iovec will be shifted.\n");
- xdr_shift_buf(rcvbuf, iov->iov_len - hdrlen);
-
+ recvd = req->rq_rcv_buf.len - hdrlen;
+ if (recvd < len) {
+ printk(KERN_WARNING "NFS: server cheating in readlink reply: "
+ "count %u > recvd %u\n", len, recvd);
+ return -EIO;
}
+ xdr_read_pages(xdr, len);
/*
* The XDR encode routine has set things up so that
* the link text will be copied directly into the
* and and null-terminate the text (the VFS expects
* null-termination).
*/
- strlen = (uint32_t *) kmap_atomic(rcvbuf->pages[0], KM_USER0);
- len = ntohl(*strlen);
- if (len > rcvbuf->page_len) {
- dprintk(KERN_WARNING "nfs: server returned giant symlink!\n");
- kunmap_atomic(strlen, KM_USER0);
- return -ENAMETOOLONG;
- }
- *strlen = len;
-
- string = (char *)(strlen + 1);
- string[len] = '\0';
- kunmap_atomic(strlen, KM_USER0);
+ kaddr = (char *)kmap_atomic(rcvbuf->pages[0], KM_USER0);
+ kaddr[len+rcvbuf->page_base] = '\0';
+ kunmap_atomic(kaddr, KM_USER0);
return 0;
}
return 0;
}
+static int decode_delegreturn(struct xdr_stream *xdr)
+{
+ return decode_op_hdr(xdr, OP_DELEGRETURN);
+}
+
/*
* Decode OPEN_DOWNGRADE response
*/
goto out;
if ((status = decode_create(&xdr,&res->dir_cinfo)) != 0)
goto out;
- if ((status = decode_getfattr(&xdr, res->fattr, res->server)) != 0)
+ if ((status = decode_getfh(&xdr, res->fh)) != 0)
goto out;
- status = decode_getfh(&xdr, res->fh);
+ status = decode_getfattr(&xdr, res->fattr, res->server);
+ if (status == NFS4ERR_DELAY)
+ status = 0;
out:
return status;
}
+/*
+ * Decode SYMLINK response
+ */
+static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_create_res *res)
+{
+ return nfs4_xdr_dec_create(rqstp, p, res);
+}
+
/*
* Decode GETATTR response
*/
if (status)
goto out;
status = decode_open(&xdr, res);
- if (status)
- goto out;
- status = decode_getfattr(&xdr, res->f_attr, res->server);
if (status)
goto out;
status = decode_getfh(&xdr, &res->fh);
+ if (status)
+ goto out;
+ status = decode_getfattr(&xdr, res->f_attr, res->server);
+ if (status == NFS4ERR_DELAY)
+ status = 0;
out:
return status;
}
}
/*
- * Decode OPEN_RECLAIM response
+ * Decode OPEN response
*/
-static int nfs4_xdr_dec_open_reclaim(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_openres *res)
+static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_openres *res)
{
struct xdr_stream xdr;
struct compound_hdr hdr;
if (status)
goto out;
status = decode_open(&xdr, res);
- if (status)
- goto out;
- status = decode_getfattr(&xdr, res->f_attr, res->server);
out:
return status;
}
if (status)
goto out;
status = decode_getfattr(&xdr, res->fattr, res->server);
+ if (status == NFS4ERR_DELAY)
+ status = 0;
out:
return status;
}
return status;
}
+/*
+ * DELEGRETURN request
+ */
+static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, uint32_t *p, void *dummy)
+{
+ struct xdr_stream xdr;
+ struct compound_hdr hdr;
+ int status;
+
+ xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
+ status = decode_compound_hdr(&xdr, &hdr);
+ if (status == 0) {
+ status = decode_putfh(&xdr);
+ if (status == 0)
+ status = decode_delegreturn(&xdr);
+ }
+ return status;
+}
+
uint32_t *nfs4_decode_dirent(uint32_t *p, struct nfs_entry *entry, int plus)
{
+ uint32_t bitmap[1] = {0};
uint32_t len;
if (!*p++) {
*/
entry->ino = 1;
- len = ntohl(*p++); /* bitmap length */
- p += len;
- len = ntohl(*p++); /* attribute buffer length */
- if (len)
- p = xdr_decode_hyper(p, &entry->ino);
+ len = ntohl(*p++); /* bitmap length */
+ if (len > 0) {
+ bitmap[0] = ntohl(*p);
+ p += len;
+ }
+ len = XDR_QUADLEN(ntohl(*p++)); /* attribute buffer length */
+ if (len > 0) {
+ if (bitmap[0] == FATTR4_WORD0_FILEID)
+ xdr_decode_hyper(p, &entry->ino);
+ p += len;
+ }
entry->eof = !p[0] && p[1];
return p;
if (nfs_errtbl[i].stat == stat)
return nfs_errtbl[i].errno;
}
- if (stat < 0) {
+ if (stat <= 10000 || stat > 10100) {
/* The server is looney tunes. */
return ESERVERFAULT;
}
PROC(COMMIT, enc_commit, dec_commit),
PROC(OPEN, enc_open, dec_open),
PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm),
- PROC(OPEN_RECLAIM, enc_open_reclaim, dec_open_reclaim),
+ PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr),
PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade),
PROC(CLOSE, enc_close, dec_close),
PROC(SETATTR, enc_setattr, dec_setattr),
PROC(REMOVE, enc_remove, dec_remove),
PROC(RENAME, enc_rename, dec_rename),
PROC(LINK, enc_link, dec_link),
+ PROC(SYMLINK, enc_symlink, dec_symlink),
PROC(CREATE, enc_create, dec_create),
PROC(PATHCONF, enc_pathconf, dec_pathconf),
PROC(STATFS, enc_statfs, dec_statfs),
PROC(READLINK, enc_readlink, dec_readlink),
PROC(READDIR, enc_readdir, dec_readdir),
PROC(SERVER_CAPS, enc_server_caps, dec_server_caps),
+ PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn),
};
struct rpc_version nfs_version4 = {
git://git.onelab.eu / linux-2.6.git / blobdiff