#include <linux/namei.h>
#include <linux/statfs.h>
#include <linux/utsname.h>
+#include <linux/pagemap.h>
#include <linux/sunrpc/svcauth_gss.h>
#include "idmap.h"
#include "acl.h"
#include "xdr4.h"
#include "vfs.h"
-
+#include "state.h"
+#include "cache.h"
#define NFSDDBG_FACILITY NFSDDBG_XDR
} \
} while (0)
+static void save_buf(struct nfsd4_compoundargs *argp, struct nfsd4_saved_compoundargs *savep)
+{
+ savep->p = argp->p;
+ savep->end = argp->end;
+ savep->pagelen = argp->pagelen;
+ savep->pagelist = argp->pagelist;
+}
+
+static void restore_buf(struct nfsd4_compoundargs *argp, struct nfsd4_saved_compoundargs *savep)
+{
+ argp->p = savep->p;
+ argp->end = savep->end;
+ argp->pagelen = savep->pagelen;
+ argp->pagelist = savep->pagelist;
+}
+
static __be32 *read_buf(struct nfsd4_compoundargs *argp, u32 nbytes)
{
/* We want more bytes than seem to be available.
{
DECODE_HEAD;
- close->cl_stateowner = NULL;
READ_BUF(4);
READ32(close->cl_seqid);
return nfsd4_decode_stateid(argp, &close->cl_stateid);
{
DECODE_HEAD;
- lock->lk_replay_owner = NULL;
/*
* type, reclaim(boolean), offset, length, new_lock_owner(boolean)
*/
{
DECODE_HEAD;
- locku->lu_stateowner = NULL;
READ_BUF(8);
READ32(locku->lu_type);
if ((locku->lu_type < NFS4_READ_LT) || (locku->lu_type > NFS4_WRITEW_LT))
{
DECODE_HEAD;
- open_conf->oc_stateowner = NULL;
status = nfsd4_decode_stateid(argp, &open_conf->oc_req_stateid);
if (status)
return status;
{
DECODE_HEAD;
- open_down->od_stateowner = NULL;
status = nfsd4_decode_stateid(argp, &open_down->od_stateid);
if (status)
return status;
DECODE_TAIL;
}
+static __be32
+nfsd4_decode_free_stateid(struct nfsd4_compoundargs *argp,
+ struct nfsd4_free_stateid *free_stateid)
+{
+ DECODE_HEAD;
+
+ READ_BUF(sizeof(stateid_t));
+ READ32(free_stateid->fr_stateid.si_generation);
+ COPYMEM(&free_stateid->fr_stateid.si_opaque, sizeof(stateid_opaque_t));
+
+ DECODE_TAIL;
+}
+
static __be32
nfsd4_decode_sequence(struct nfsd4_compoundargs *argp,
struct nfsd4_sequence *seq)
DECODE_TAIL;
}
+static __be32
+nfsd4_decode_test_stateid(struct nfsd4_compoundargs *argp, struct nfsd4_test_stateid *test_stateid)
+{
+ unsigned int nbytes;
+ stateid_t si;
+ int i;
+ __be32 *p;
+ __be32 status;
+
+ READ_BUF(4);
+ test_stateid->ts_num_ids = ntohl(*p++);
+
+ nbytes = test_stateid->ts_num_ids * sizeof(stateid_t);
+ if (nbytes > (u32)((char *)argp->end - (char *)argp->p))
+ goto xdr_error;
+
+ test_stateid->ts_saved_args = argp;
+ save_buf(argp, &test_stateid->ts_savedp);
+
+ for (i = 0; i < test_stateid->ts_num_ids; i++) {
+ status = nfsd4_decode_stateid(argp, &si);
+ if (status)
+ return status;
+ }
+
+ status = 0;
+out:
+ return status;
+xdr_error:
+ dprintk("NFSD: xdr error (%s:%d)\n", __FILE__, __LINE__);
+ status = nfserr_bad_xdr;
+ goto out;
+}
+
static __be32 nfsd4_decode_reclaim_complete(struct nfsd4_compoundargs *argp, struct nfsd4_reclaim_complete *rc)
{
DECODE_HEAD;
[OP_EXCHANGE_ID] = (nfsd4_dec)nfsd4_decode_exchange_id,
[OP_CREATE_SESSION] = (nfsd4_dec)nfsd4_decode_create_session,
[OP_DESTROY_SESSION] = (nfsd4_dec)nfsd4_decode_destroy_session,
- [OP_FREE_STATEID] = (nfsd4_dec)nfsd4_decode_notsupp,
+ [OP_FREE_STATEID] = (nfsd4_dec)nfsd4_decode_free_stateid,
[OP_GET_DIR_DELEGATION] = (nfsd4_dec)nfsd4_decode_notsupp,
[OP_GETDEVICEINFO] = (nfsd4_dec)nfsd4_decode_notsupp,
[OP_GETDEVICELIST] = (nfsd4_dec)nfsd4_decode_notsupp,
[OP_SECINFO_NO_NAME] = (nfsd4_dec)nfsd4_decode_secinfo_no_name,
[OP_SEQUENCE] = (nfsd4_dec)nfsd4_decode_sequence,
[OP_SET_SSV] = (nfsd4_dec)nfsd4_decode_notsupp,
- [OP_TEST_STATEID] = (nfsd4_dec)nfsd4_decode_notsupp,
+ [OP_TEST_STATEID] = (nfsd4_dec)nfsd4_decode_test_stateid,
[OP_WANT_DELEGATION] = (nfsd4_dec)nfsd4_decode_notsupp,
[OP_DESTROY_CLIENTID] = (nfsd4_dec)nfsd4_decode_notsupp,
[OP_RECLAIM_COMPLETE] = (nfsd4_dec)nfsd4_decode_reclaim_complete,
DECODE_HEAD;
struct nfsd4_op *op;
struct nfsd4_minorversion_ops *ops;
+ bool cachethis = false;
int i;
/*
argp->opcnt = i+1;
break;
}
+ /*
+ * We'll try to cache the result in the DRC if any one
+ * op in the compound wants to be cached:
+ */
+ cachethis |= nfsd4_cache_this_op(op);
}
+ /* Sessions make the DRC unnecessary: */
+ if (argp->minorversion)
+ cachethis = false;
+ argp->rqstp->rq_cachetype = cachethis ? RC_REPLBUFF : RC_NOCACHE;
DECODE_TAIL;
}
* we know whether the error to be returned is a sequence id mutating error.
*/
-#define ENCODE_SEQID_OP_TAIL(stateowner) do { \
- if (seqid_mutating_err(nfserr) && stateowner) { \
- stateowner->so_seqid++; \
- stateowner->so_replay.rp_status = nfserr; \
- stateowner->so_replay.rp_buflen = \
- (((char *)(resp)->p - (char *)save)); \
- memcpy(stateowner->so_replay.rp_buf, save, \
- stateowner->so_replay.rp_buflen); \
- } } while (0);
+static void encode_seqid_op_tail(struct nfsd4_compoundres *resp, __be32 *save, __be32 nfserr)
+{
+ struct nfs4_stateowner *stateowner = resp->cstate.replay_owner;
+
+ if (seqid_mutating_err(ntohl(nfserr)) && stateowner) {
+ stateowner->so_seqid++;
+ stateowner->so_replay.rp_status = nfserr;
+ stateowner->so_replay.rp_buflen =
+ (char *)resp->p - (char *)save;
+ memcpy(stateowner->so_replay.rp_buf, save,
+ stateowner->so_replay.rp_buflen);
+ }
+}
/* Encode as an array of strings the string given with components
* separated @sep.
return 0;
}
-static u32 nfs4_ftypes[16] = {
- NF4BAD, NF4FIFO, NF4CHR, NF4BAD,
- NF4DIR, NF4BAD, NF4BLK, NF4BAD,
- NF4REG, NF4BAD, NF4LNK, NF4BAD,
- NF4SOCK, NF4BAD, NF4LNK, NF4BAD,
-};
+static u32 nfs4_file_type(umode_t mode)
+{
+ switch (mode & S_IFMT) {
+ case S_IFIFO: return NF4FIFO;
+ case S_IFCHR: return NF4CHR;
+ case S_IFDIR: return NF4DIR;
+ case S_IFBLK: return NF4BLK;
+ case S_IFLNK: return NF4LNK;
+ case S_IFREG: return NF4REG;
+ case S_IFSOCK: return NF4SOCK;
+ default: return NF4BAD;
+ };
+}
static __be32
nfsd4_encode_name(struct svc_rqst *rqstp, int whotype, uid_t id, int group,
if (bmval0 & FATTR4_WORD0_TYPE) {
if ((buflen -= 4) < 0)
goto out_resource;
- dummy = nfs4_ftypes[(stat.mode & S_IFMT) >> 12];
+ dummy = nfs4_file_type(stat.mode);
if (dummy == NF4BAD)
goto out_serverfault;
WRITE32(dummy);
if (!nfserr)
nfsd4_encode_stateid(resp, &close->cl_stateid);
- ENCODE_SEQID_OP_TAIL(close->cl_stateowner);
+ encode_seqid_op_tail(resp, save, nfserr);
return nfserr;
}
static void
nfsd4_encode_lock_denied(struct nfsd4_compoundres *resp, struct nfsd4_lock_denied *ld)
{
+ struct xdr_netobj *conf = &ld->ld_owner;
__be32 *p;
- RESERVE_SPACE(32 + XDR_LEN(ld->ld_sop ? ld->ld_sop->so_owner.len : 0));
+ RESERVE_SPACE(32 + XDR_LEN(conf->len));
WRITE64(ld->ld_start);
WRITE64(ld->ld_length);
WRITE32(ld->ld_type);
- if (ld->ld_sop) {
+ if (conf->len) {
WRITEMEM(&ld->ld_clientid, 8);
- WRITE32(ld->ld_sop->so_owner.len);
- WRITEMEM(ld->ld_sop->so_owner.data, ld->ld_sop->so_owner.len);
- kref_put(&ld->ld_sop->so_ref, nfs4_free_stateowner);
+ WRITE32(conf->len);
+ WRITEMEM(conf->data, conf->len);
+ kfree(conf->data);
} else { /* non - nfsv4 lock in conflict, no clientid nor owner */
WRITE64((u64)0); /* clientid */
WRITE32(0); /* length of owner name */
else if (nfserr == nfserr_denied)
nfsd4_encode_lock_denied(resp, &lock->lk_denied);
- ENCODE_SEQID_OP_TAIL(lock->lk_replay_owner);
+ encode_seqid_op_tail(resp, save, nfserr);
return nfserr;
}
if (!nfserr)
nfsd4_encode_stateid(resp, &locku->lu_stateid);
- ENCODE_SEQID_OP_TAIL(locku->lu_stateowner);
+ encode_seqid_op_tail(resp, save, nfserr);
return nfserr;
}
}
/* XXX save filehandle here */
out:
- ENCODE_SEQID_OP_TAIL(open->op_stateowner);
+ encode_seqid_op_tail(resp, save, nfserr);
return nfserr;
}
if (!nfserr)
nfsd4_encode_stateid(resp, &oc->oc_resp_stateid);
- ENCODE_SEQID_OP_TAIL(oc->oc_stateowner);
+ encode_seqid_op_tail(resp, save, nfserr);
return nfserr;
}
if (!nfserr)
nfsd4_encode_stateid(resp, &od->od_stateid);
- ENCODE_SEQID_OP_TAIL(od->od_stateowner);
+ encode_seqid_op_tail(resp, save, nfserr);
return nfserr;
}
read->rd_offset, resp->rqstp->rq_vec, read->rd_vlen,
&maxcount);
- if (nfserr == nfserr_symlink)
- nfserr = nfserr_inval;
if (nfserr)
return nfserr;
eof = (read->rd_offset + maxcount >=
readdir->common.err == nfserr_toosmall &&
readdir->buffer == page)
nfserr = nfserr_toosmall;
- if (nfserr == nfserr_symlink)
- nfserr = nfserr_notdir;
if (nfserr)
goto err_no_verf;
return nfserr;
}
+static __be32
+nfsd4_encode_free_stateid(struct nfsd4_compoundres *resp, int nfserr,
+ struct nfsd4_free_stateid *free_stateid)
+{
+ __be32 *p;
+
+ if (nfserr)
+ return nfserr;
+
+ RESERVE_SPACE(4);
+ WRITE32(nfserr);
+ ADJUST_ARGS();
+ return nfserr;
+}
+
static __be32
nfsd4_encode_sequence(struct nfsd4_compoundres *resp, int nfserr,
struct nfsd4_sequence *seq)
WRITEMEM(seq->sessionid.data, NFS4_MAX_SESSIONID_LEN);
WRITE32(seq->seqid);
WRITE32(seq->slotid);
- WRITE32(seq->maxslots);
- /* For now: target_maxslots = maxslots */
- WRITE32(seq->maxslots);
+ /* Note slotid's are numbered from zero: */
+ WRITE32(seq->maxslots - 1); /* sr_highest_slotid */
+ WRITE32(seq->maxslots - 1); /* sr_target_highest_slotid */
WRITE32(seq->status_flags);
ADJUST_ARGS();
return 0;
}
+__be32
+nfsd4_encode_test_stateid(struct nfsd4_compoundres *resp, int nfserr,
+ struct nfsd4_test_stateid *test_stateid)
+{
+ struct nfsd4_compoundargs *argp;
+ stateid_t si;
+ __be32 *p;
+ int i;
+ int valid;
+
+ restore_buf(test_stateid->ts_saved_args, &test_stateid->ts_savedp);
+ argp = test_stateid->ts_saved_args;
+
+ RESERVE_SPACE(4);
+ *p++ = htonl(test_stateid->ts_num_ids);
+ resp->p = p;
+
+ nfs4_lock_state();
+ for (i = 0; i < test_stateid->ts_num_ids; i++) {
+ nfsd4_decode_stateid(argp, &si);
+ valid = nfs4_validate_stateid(&si, test_stateid->ts_has_session);
+ RESERVE_SPACE(4);
+ *p++ = htonl(valid);
+ resp->p = p;
+ }
+ nfs4_unlock_state();
+
+ return nfserr;
+}
+
static __be32
nfsd4_encode_noop(struct nfsd4_compoundres *resp, __be32 nfserr, void *p)
{
[OP_EXCHANGE_ID] = (nfsd4_enc)nfsd4_encode_exchange_id,
[OP_CREATE_SESSION] = (nfsd4_enc)nfsd4_encode_create_session,
[OP_DESTROY_SESSION] = (nfsd4_enc)nfsd4_encode_destroy_session,
- [OP_FREE_STATEID] = (nfsd4_enc)nfsd4_encode_noop,
+ [OP_FREE_STATEID] = (nfsd4_enc)nfsd4_encode_free_stateid,
[OP_GET_DIR_DELEGATION] = (nfsd4_enc)nfsd4_encode_noop,
[OP_GETDEVICEINFO] = (nfsd4_enc)nfsd4_encode_noop,
[OP_GETDEVICELIST] = (nfsd4_enc)nfsd4_encode_noop,
[OP_SECINFO_NO_NAME] = (nfsd4_enc)nfsd4_encode_secinfo_no_name,
[OP_SEQUENCE] = (nfsd4_enc)nfsd4_encode_sequence,
[OP_SET_SSV] = (nfsd4_enc)nfsd4_encode_noop,
- [OP_TEST_STATEID] = (nfsd4_enc)nfsd4_encode_noop,
+ [OP_TEST_STATEID] = (nfsd4_enc)nfsd4_encode_test_stateid,
[OP_WANT_DELEGATION] = (nfsd4_enc)nfsd4_encode_noop,
[OP_DESTROY_CLIENTID] = (nfsd4_enc)nfsd4_encode_noop,
[OP_RECLAIM_COMPLETE] = (nfsd4_enc)nfsd4_encode_noop,
return xdr_ressize_check(rqstp, p);
}
-void nfsd4_release_compoundargs(struct nfsd4_compoundargs *args)
+int nfsd4_release_compoundargs(void *rq, __be32 *p, void *resp)
{
+ struct svc_rqst *rqstp = rq;
+ struct nfsd4_compoundargs *args = rqstp->rq_argp;
+
if (args->ops != args->iops) {
kfree(args->ops);
args->ops = args->iops;
tb->release(tb->buf);
kfree(tb);
}
+ return 1;
}
int
nfs4svc_decode_compoundargs(struct svc_rqst *rqstp, __be32 *p, struct nfsd4_compoundargs *args)
{
- __be32 status;
-
args->p = p;
args->end = rqstp->rq_arg.head[0].iov_base + rqstp->rq_arg.head[0].iov_len;
args->pagelist = rqstp->rq_arg.pages;
args->ops = args->iops;
args->rqstp = rqstp;
- status = nfsd4_decode_compound(args);
- if (status) {
- nfsd4_release_compoundargs(args);
- }
- return !status;
+ return !nfsd4_decode_compound(args);
}
int
projects / karo-tx-linux.git / blobdiff