mirror of
https://github.com/torvalds/linux.git
synced 2024-11-24 21:21:41 +00:00
NFSD: Combine decode operations for v4 and v4.1
We were using a different array of function pointers to represent each minor version. This makes adding a new minor version tedious, since it needs a step to copy, paste and modify a new version of the same functions. This patch combines the v4 and v4.1 arrays into a single instance and will check minor version support inside each decoder function. Signed-off-by: Anna Schumaker <bjschuma@netapp.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
Anna Schumaker
J. Bruce Fields
parent
6f6cc3205c
commit
e1a90ebd8b
@ -945,13 +945,16 @@ static __be32
|
||||
nfsd4_decode_open_confirm(struct nfsd4_compoundargs *argp, struct nfsd4_open_confirm *open_conf)
|
||||
{
|
||||
DECODE_HEAD;
|
||||
|
||||
|
||||
if (argp->minorversion >= 1)
|
||||
return nfserr_notsupp;
|
||||
|
||||
status = nfsd4_decode_stateid(argp, &open_conf->oc_req_stateid);
|
||||
if (status)
|
||||
return status;
|
||||
READ_BUF(4);
|
||||
READ32(open_conf->oc_seqid);
|
||||
|
||||
|
||||
DECODE_TAIL;
|
||||
}
|
||||
|
||||
@ -990,6 +993,14 @@ nfsd4_decode_putfh(struct nfsd4_compoundargs *argp, struct nfsd4_putfh *putfh)
|
||||
DECODE_TAIL;
|
||||
}
|
||||
|
||||
static __be32
|
||||
nfsd4_decode_putpubfh(struct nfsd4_compoundargs *argp, void *p)
|
||||
{
|
||||
if (argp->minorversion == 0)
|
||||
return nfs_ok;
|
||||
return nfserr_notsupp;
|
||||
}
|
||||
|
||||
static __be32
|
||||
nfsd4_decode_read(struct nfsd4_compoundargs *argp, struct nfsd4_read *read)
|
||||
{
|
||||
@ -1061,6 +1072,9 @@ nfsd4_decode_renew(struct nfsd4_compoundargs *argp, clientid_t *clientid)
|
||||
{
|
||||
DECODE_HEAD;
|
||||
|
||||
if (argp->minorversion >= 1)
|
||||
return nfserr_notsupp;
|
||||
|
||||
READ_BUF(sizeof(clientid_t));
|
||||
COPYMEM(clientid, sizeof(clientid_t));
|
||||
|
||||
@ -1111,6 +1125,9 @@ nfsd4_decode_setclientid(struct nfsd4_compoundargs *argp, struct nfsd4_setclient
|
||||
{
|
||||
DECODE_HEAD;
|
||||
|
||||
if (argp->minorversion >= 1)
|
||||
return nfserr_notsupp;
|
||||
|
||||
READ_BUF(NFS4_VERIFIER_SIZE);
|
||||
COPYMEM(setclientid->se_verf.data, NFS4_VERIFIER_SIZE);
|
||||
|
||||
@ -1137,6 +1154,9 @@ nfsd4_decode_setclientid_confirm(struct nfsd4_compoundargs *argp, struct nfsd4_s
|
||||
{
|
||||
DECODE_HEAD;
|
||||
|
||||
if (argp->minorversion >= 1)
|
||||
return nfserr_notsupp;
|
||||
|
||||
READ_BUF(8 + NFS4_VERIFIER_SIZE);
|
||||
COPYMEM(&scd_c->sc_clientid, 8);
|
||||
COPYMEM(&scd_c->sc_confirm, NFS4_VERIFIER_SIZE);
|
||||
@ -1220,6 +1240,9 @@ nfsd4_decode_release_lockowner(struct nfsd4_compoundargs *argp, struct nfsd4_rel
|
||||
{
|
||||
DECODE_HEAD;
|
||||
|
||||
if (argp->minorversion >= 1)
|
||||
return nfserr_notsupp;
|
||||
|
||||
READ_BUF(12);
|
||||
COPYMEM(&rlockowner->rl_clientid, sizeof(clientid_t));
|
||||
READ32(rlockowner->rl_owner.len);
|
||||
@ -1519,7 +1542,7 @@ static nfsd4_dec nfsd4_dec_ops[] = {
|
||||
[OP_OPEN_CONFIRM] = (nfsd4_dec)nfsd4_decode_open_confirm,
|
||||
[OP_OPEN_DOWNGRADE] = (nfsd4_dec)nfsd4_decode_open_downgrade,
|
||||
[OP_PUTFH] = (nfsd4_dec)nfsd4_decode_putfh,
|
||||
[OP_PUTPUBFH] = (nfsd4_dec)nfsd4_decode_noop,
|
||||
[OP_PUTPUBFH] = (nfsd4_dec)nfsd4_decode_putpubfh,
|
||||
[OP_PUTROOTFH] = (nfsd4_dec)nfsd4_decode_noop,
|
||||
[OP_READ] = (nfsd4_dec)nfsd4_decode_read,
|
||||
[OP_READDIR] = (nfsd4_dec)nfsd4_decode_readdir,
|
||||
@ -1536,46 +1559,6 @@ static nfsd4_dec nfsd4_dec_ops[] = {
|
||||
[OP_VERIFY] = (nfsd4_dec)nfsd4_decode_verify,
|
||||
[OP_WRITE] = (nfsd4_dec)nfsd4_decode_write,
|
||||
[OP_RELEASE_LOCKOWNER] = (nfsd4_dec)nfsd4_decode_release_lockowner,
|
||||
};
|
||||
|
||||
static nfsd4_dec nfsd41_dec_ops[] = {
|
||||
[OP_ACCESS] = (nfsd4_dec)nfsd4_decode_access,
|
||||
[OP_CLOSE] = (nfsd4_dec)nfsd4_decode_close,
|
||||
[OP_COMMIT] = (nfsd4_dec)nfsd4_decode_commit,
|
||||
[OP_CREATE] = (nfsd4_dec)nfsd4_decode_create,
|
||||
[OP_DELEGPURGE] = (nfsd4_dec)nfsd4_decode_notsupp,
|
||||
[OP_DELEGRETURN] = (nfsd4_dec)nfsd4_decode_delegreturn,
|
||||
[OP_GETATTR] = (nfsd4_dec)nfsd4_decode_getattr,
|
||||
[OP_GETFH] = (nfsd4_dec)nfsd4_decode_noop,
|
||||
[OP_LINK] = (nfsd4_dec)nfsd4_decode_link,
|
||||
[OP_LOCK] = (nfsd4_dec)nfsd4_decode_lock,
|
||||
[OP_LOCKT] = (nfsd4_dec)nfsd4_decode_lockt,
|
||||
[OP_LOCKU] = (nfsd4_dec)nfsd4_decode_locku,
|
||||
[OP_LOOKUP] = (nfsd4_dec)nfsd4_decode_lookup,
|
||||
[OP_LOOKUPP] = (nfsd4_dec)nfsd4_decode_noop,
|
||||
[OP_NVERIFY] = (nfsd4_dec)nfsd4_decode_verify,
|
||||
[OP_OPEN] = (nfsd4_dec)nfsd4_decode_open,
|
||||
[OP_OPENATTR] = (nfsd4_dec)nfsd4_decode_notsupp,
|
||||
[OP_OPEN_CONFIRM] = (nfsd4_dec)nfsd4_decode_notsupp,
|
||||
[OP_OPEN_DOWNGRADE] = (nfsd4_dec)nfsd4_decode_open_downgrade,
|
||||
[OP_PUTFH] = (nfsd4_dec)nfsd4_decode_putfh,
|
||||
[OP_PUTPUBFH] = (nfsd4_dec)nfsd4_decode_notsupp,
|
||||
[OP_PUTROOTFH] = (nfsd4_dec)nfsd4_decode_noop,
|
||||
[OP_READ] = (nfsd4_dec)nfsd4_decode_read,
|
||||
[OP_READDIR] = (nfsd4_dec)nfsd4_decode_readdir,
|
||||
[OP_READLINK] = (nfsd4_dec)nfsd4_decode_noop,
|
||||
[OP_REMOVE] = (nfsd4_dec)nfsd4_decode_remove,
|
||||
[OP_RENAME] = (nfsd4_dec)nfsd4_decode_rename,
|
||||
[OP_RENEW] = (nfsd4_dec)nfsd4_decode_notsupp,
|
||||
[OP_RESTOREFH] = (nfsd4_dec)nfsd4_decode_noop,
|
||||
[OP_SAVEFH] = (nfsd4_dec)nfsd4_decode_noop,
|
||||
[OP_SECINFO] = (nfsd4_dec)nfsd4_decode_secinfo,
|
||||
[OP_SETATTR] = (nfsd4_dec)nfsd4_decode_setattr,
|
||||
[OP_SETCLIENTID] = (nfsd4_dec)nfsd4_decode_notsupp,
|
||||
[OP_SETCLIENTID_CONFIRM]= (nfsd4_dec)nfsd4_decode_notsupp,
|
||||
[OP_VERIFY] = (nfsd4_dec)nfsd4_decode_verify,
|
||||
[OP_WRITE] = (nfsd4_dec)nfsd4_decode_write,
|
||||
[OP_RELEASE_LOCKOWNER] = (nfsd4_dec)nfsd4_decode_notsupp,
|
||||
|
||||
/* new operations for NFSv4.1 */
|
||||
[OP_BACKCHANNEL_CTL] = (nfsd4_dec)nfsd4_decode_backchannel_ctl,
|
||||
@ -1599,23 +1582,23 @@ static nfsd4_dec nfsd41_dec_ops[] = {
|
||||
[OP_RECLAIM_COMPLETE] = (nfsd4_dec)nfsd4_decode_reclaim_complete,
|
||||
};
|
||||
|
||||
struct nfsd4_minorversion_ops {
|
||||
nfsd4_dec *decoders;
|
||||
int nops;
|
||||
};
|
||||
|
||||
static struct nfsd4_minorversion_ops nfsd4_minorversion[] = {
|
||||
[0] = { nfsd4_dec_ops, ARRAY_SIZE(nfsd4_dec_ops) },
|
||||
[1] = { nfsd41_dec_ops, ARRAY_SIZE(nfsd41_dec_ops) },
|
||||
[2] = { nfsd41_dec_ops, ARRAY_SIZE(nfsd41_dec_ops) },
|
||||
};
|
||||
static inline bool
|
||||
nfsd4_opnum_in_range(struct nfsd4_compoundargs *argp, struct nfsd4_op *op)
|
||||
{
|
||||
if (op->opnum < FIRST_NFS4_OP || op->opnum > LAST_NFS4_OP)
|
||||
return false;
|
||||
else if (argp->minorversion == 0 && op->opnum > OP_RELEASE_LOCKOWNER)
|
||||
return false;
|
||||
else if (argp->minorversion == 1 && op->opnum > OP_RECLAIM_COMPLETE)
|
||||
return false;
|
||||
return true;
|
||||
}
|
||||
|
||||
static __be32
|
||||
nfsd4_decode_compound(struct nfsd4_compoundargs *argp)
|
||||
{
|
||||
DECODE_HEAD;
|
||||
struct nfsd4_op *op;
|
||||
struct nfsd4_minorversion_ops *ops;
|
||||
bool cachethis = false;
|
||||
int i;
|
||||
|
||||
@ -1640,10 +1623,9 @@ nfsd4_decode_compound(struct nfsd4_compoundargs *argp)
|
||||
}
|
||||
}
|
||||
|
||||
if (argp->minorversion >= ARRAY_SIZE(nfsd4_minorversion))
|
||||
if (argp->minorversion > NFSD_SUPPORTED_MINOR_VERSION)
|
||||
argp->opcnt = 0;
|
||||
|
||||
ops = &nfsd4_minorversion[argp->minorversion];
|
||||
for (i = 0; i < argp->opcnt; i++) {
|
||||
op = &argp->ops[i];
|
||||
op->replay = NULL;
|
||||
@ -1651,8 +1633,8 @@ nfsd4_decode_compound(struct nfsd4_compoundargs *argp)
|
||||
READ_BUF(4);
|
||||
READ32(op->opnum);
|
||||
|
||||
if (op->opnum >= FIRST_NFS4_OP && op->opnum <= LAST_NFS4_OP)
|
||||
op->status = ops->decoders[op->opnum](argp, &op->u);
|
||||
if (nfsd4_opnum_in_range(argp, op))
|
||||
op->status = nfsd4_dec_ops[op->opnum](argp, &op->u);
|
||||
else {
|
||||
op->opnum = OP_ILLEGAL;
|
||||
op->status = nfserr_op_illegal;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user