#include "cache.h"
#include "xdr4.h"
#include "vfs.h"
+#include "current_stateid.h"
#define NFSDDBG_FACILITY NFSDDBG_PROC
static __be32
do_open_lookup(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_open *open)
{
- struct svc_fh resfh;
+ struct svc_fh *resfh;
__be32 status;
- fh_init(&resfh, NFS4_FHSIZE);
+ resfh = kmalloc(sizeof(struct svc_fh), GFP_KERNEL);
+ if (!resfh)
+ return nfserr_jukebox;
+ fh_init(resfh, NFS4_FHSIZE);
open->op_truncate = 0;
if (open->op_create) {
*/
status = do_nfsd_create(rqstp, current_fh, open->op_fname.data,
open->op_fname.len, &open->op_iattr,
- &resfh, open->op_createmode,
+ resfh, open->op_createmode,
(u32 *)open->op_verf.data,
&open->op_truncate, &open->op_created);
FATTR4_WORD1_TIME_MODIFY);
} else {
status = nfsd_lookup(rqstp, current_fh,
- open->op_fname.data, open->op_fname.len, &resfh);
+ open->op_fname.data, open->op_fname.len, resfh);
fh_unlock(current_fh);
if (status)
goto out;
- status = nfsd_check_obj_isreg(&resfh);
+ status = nfsd_check_obj_isreg(resfh);
}
if (status)
goto out;
if (is_create_with_attrs(open) && open->op_acl != NULL)
- do_set_nfs4_acl(rqstp, &resfh, open->op_acl, open->op_bmval);
-
- set_change_info(&open->op_cinfo, current_fh);
- fh_dup2(current_fh, &resfh);
+ do_set_nfs4_acl(rqstp, resfh, open->op_acl, open->op_bmval);
/* set reply cache */
fh_copy_shallow(&open->op_openowner->oo_owner.so_replay.rp_openfh,
- &resfh.fh_handle);
+ &resfh->fh_handle);
if (!open->op_created)
- status = do_open_permission(rqstp, current_fh, open,
+ status = do_open_permission(rqstp, resfh, open,
NFSD_MAY_NOP);
-
+ set_change_info(&open->op_cinfo, current_fh);
+ fh_dup2(current_fh, resfh);
out:
- fh_put(&resfh);
+ fh_put(resfh);
+ kfree(resfh);
return status;
}
if (open->op_create && open->op_claim_type != NFS4_OPEN_CLAIM_NULL)
return nfserr_inval;
- /* We don't yet support WANT bits: */
- open->op_share_access &= NFS4_SHARE_ACCESS_MASK;
-
open->op_created = 0;
/*
* RFC5661 18.51.3
* Before RECLAIM_COMPLETE done, server should deny new lock
*/
if (nfsd4_has_session(cstate) &&
- !cstate->session->se_client->cl_firststate &&
+ !test_bit(NFSD4_CLIENT_RECLAIM_COMPLETE,
+ &cstate->session->se_client->cl_flags) &&
open->op_claim_type != NFS4_OPEN_CLAIM_PREVIOUS)
return nfserr_grace;
return nfserr_restorefh;
fh_dup2(&cstate->current_fh, &cstate->save_fh);
+ if (HAS_STATE_ID(cstate, SAVED_STATE_ID_FLAG)) {
+ memcpy(&cstate->current_stateid, &cstate->save_stateid, sizeof(stateid_t));
+ SET_STATE_ID(cstate, CURRENT_STATE_ID_FLAG);
+ }
return nfs_ok;
}
return nfserr_nofilehandle;
fh_dup2(&cstate->save_fh, &cstate->current_fh);
+ if (HAS_STATE_ID(cstate, CURRENT_STATE_ID_FLAG)) {
+ memcpy(&cstate->save_stateid, &cstate->current_stateid, sizeof(stateid_t));
+ SET_STATE_ID(cstate, SAVED_STATE_ID_FLAG);
+ }
return nfs_ok;
}
&access->ac_supported);
}
+static void gen_boot_verifier(nfs4_verifier *verifier)
+{
+ __be32 verf[2];
+
+ verf[0] = (__be32)nfssvc_boot.tv_sec;
+ verf[1] = (__be32)nfssvc_boot.tv_usec;
+ memcpy(verifier->data, verf, sizeof(verifier->data));
+}
+
static __be32
nfsd4_commit(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
struct nfsd4_commit *commit)
{
- u32 *p = (u32 *)commit->co_verf.data;
- *p++ = nfssvc_boot.tv_sec;
- *p++ = nfssvc_boot.tv_usec;
-
+ gen_boot_verifier(&commit->co_verf);
return nfsd_commit(rqstp, &cstate->current_fh, commit->co_offset,
commit->co_count);
}
struct nfsd4_setattr *setattr)
{
__be32 status = nfs_ok;
+ int err;
if (setattr->sa_iattr.ia_valid & ATTR_SIZE) {
nfs4_lock_state();
return status;
}
}
- status = fh_want_write(&cstate->current_fh);
- if (status)
- return status;
+ err = fh_want_write(&cstate->current_fh);
+ if (err)
+ return nfserrno(err);
status = nfs_ok;
status = check_attr_support(rqstp, cstate, setattr->sa_bmval,
{
stateid_t *stateid = &write->wr_stateid;
struct file *filp = NULL;
- u32 *p;
__be32 status = nfs_ok;
unsigned long cnt;
cnt = write->wr_buflen;
write->wr_how_written = write->wr_stable_how;
- p = (u32 *)write->wr_verifier.data;
- *p++ = nfssvc_boot.tv_sec;
- *p++ = nfssvc_boot.tv_usec;
+ gen_boot_verifier(&write->wr_verifier);
status = nfsd_write(rqstp, &cstate->current_fh, filp,
write->wr_offset, rqstp->rq_vec, write->wr_vlen,
typedef __be32(*nfsd4op_func)(struct svc_rqst *, struct nfsd4_compound_state *,
void *);
typedef u32(*nfsd4op_rsize)(struct svc_rqst *, struct nfsd4_op *op);
+typedef void(*stateid_setter)(struct nfsd4_compound_state *, void *);
+typedef void(*stateid_getter)(struct nfsd4_compound_state *, void *);
enum nfsd4_op_flags {
ALLOWED_WITHOUT_FH = 1 << 0, /* No current filehandle required */
* the v4.0 case).
*/
OP_CACHEME = 1 << 6,
+ /*
+ * These are ops which clear current state id.
+ */
+ OP_CLEAR_STATEID = 1 << 7,
};
struct nfsd4_operation {
char *op_name;
/* Try to get response size before operation */
nfsd4op_rsize op_rsize_bop;
+ stateid_setter op_get_currentstateid;
+ stateid_getter op_set_currentstateid;
};
static struct nfsd4_operation nfsd4_ops[];
+#ifdef NFSD_DEBUG
static const char *nfsd4_op_name(unsigned opnum);
+#endif
/*
* Enforce NFSv4.1 COMPOUND ordering rules:
if (op->status)
goto encode_op;
- if (opdesc->op_func)
+ if (opdesc->op_func) {
+ if (opdesc->op_get_currentstateid)
+ opdesc->op_get_currentstateid(cstate, &op->u);
op->status = opdesc->op_func(rqstp, cstate, &op->u);
- else
+ } else
BUG_ON(op->status == nfs_ok);
- if (!op->status && need_wrongsec_check(rqstp))
- op->status = check_nfsd_access(cstate->current_fh.fh_export, rqstp);
+ if (!op->status) {
+ if (opdesc->op_set_currentstateid)
+ opdesc->op_set_currentstateid(cstate, &op->u);
+
+ if (opdesc->op_flags & OP_CLEAR_STATEID)
+ clear_current_stateid(cstate);
+
+ if (need_wrongsec_check(rqstp))
+ op->status = check_nfsd_access(cstate->current_fh.fh_export, rqstp);
+ }
encode_op:
/* Only from SEQUENCE */
.op_flags = OP_MODIFIES_SOMETHING,
.op_name = "OP_CLOSE",
.op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize,
+ .op_get_currentstateid = (stateid_getter)nfsd4_get_closestateid,
+ .op_set_currentstateid = (stateid_setter)nfsd4_set_closestateid,
},
[OP_COMMIT] = {
.op_func = (nfsd4op_func)nfsd4_commit,
},
[OP_CREATE] = {
.op_func = (nfsd4op_func)nfsd4_create,
- .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME,
+ .op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME | OP_CLEAR_STATEID,
.op_name = "OP_CREATE",
.op_rsize_bop = (nfsd4op_rsize)nfsd4_create_rsize,
},
.op_flags = OP_MODIFIES_SOMETHING,
.op_name = "OP_DELEGRETURN",
.op_rsize_bop = nfsd4_only_status_rsize,
+ .op_get_currentstateid = (stateid_getter)nfsd4_get_delegreturnstateid,
},
[OP_GETATTR] = {
.op_func = (nfsd4op_func)nfsd4_getattr,
.op_flags = OP_MODIFIES_SOMETHING,
.op_name = "OP_LOCK",
.op_rsize_bop = (nfsd4op_rsize)nfsd4_lock_rsize,
+ .op_set_currentstateid = (stateid_setter)nfsd4_set_lockstateid,
},
[OP_LOCKT] = {
.op_func = (nfsd4op_func)nfsd4_lockt,
.op_flags = OP_MODIFIES_SOMETHING,
.op_name = "OP_LOCKU",
.op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize,
+ .op_get_currentstateid = (stateid_getter)nfsd4_get_lockustateid,
},
[OP_LOOKUP] = {
.op_func = (nfsd4op_func)nfsd4_lookup,
- .op_flags = OP_HANDLES_WRONGSEC,
+ .op_flags = OP_HANDLES_WRONGSEC | OP_CLEAR_STATEID,
.op_name = "OP_LOOKUP",
},
[OP_LOOKUPP] = {
.op_func = (nfsd4op_func)nfsd4_lookupp,
- .op_flags = OP_HANDLES_WRONGSEC,
+ .op_flags = OP_HANDLES_WRONGSEC | OP_CLEAR_STATEID,
.op_name = "OP_LOOKUPP",
},
[OP_NVERIFY] = {
.op_flags = OP_HANDLES_WRONGSEC | OP_MODIFIES_SOMETHING,
.op_name = "OP_OPEN",
.op_rsize_bop = (nfsd4op_rsize)nfsd4_open_rsize,
+ .op_set_currentstateid = (stateid_setter)nfsd4_set_openstateid,
},
[OP_OPEN_CONFIRM] = {
.op_func = (nfsd4op_func)nfsd4_open_confirm,
.op_flags = OP_MODIFIES_SOMETHING,
.op_name = "OP_OPEN_DOWNGRADE",
.op_rsize_bop = (nfsd4op_rsize)nfsd4_status_stateid_rsize,
+ .op_get_currentstateid = (stateid_getter)nfsd4_get_opendowngradestateid,
+ .op_set_currentstateid = (stateid_setter)nfsd4_set_opendowngradestateid,
},
[OP_PUTFH] = {
.op_func = (nfsd4op_func)nfsd4_putfh,
.op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS
- | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING,
+ | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING
+ | OP_CLEAR_STATEID,
.op_name = "OP_PUTFH",
.op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
},
[OP_PUTPUBFH] = {
.op_func = (nfsd4op_func)nfsd4_putrootfh,
.op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS
- | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING,
+ | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING
+ | OP_CLEAR_STATEID,
.op_name = "OP_PUTPUBFH",
.op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
},
[OP_PUTROOTFH] = {
.op_func = (nfsd4op_func)nfsd4_putrootfh,
.op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS
- | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING,
+ | OP_IS_PUTFH_LIKE | OP_MODIFIES_SOMETHING
+ | OP_CLEAR_STATEID,
.op_name = "OP_PUTROOTFH",
.op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
},
.op_flags = OP_MODIFIES_SOMETHING,
.op_name = "OP_READ",
.op_rsize_bop = (nfsd4op_rsize)nfsd4_read_rsize,
+ .op_get_currentstateid = (stateid_getter)nfsd4_get_readstateid,
},
[OP_READDIR] = {
.op_func = (nfsd4op_func)nfsd4_readdir,
.op_name = "OP_SETATTR",
.op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME,
.op_rsize_bop = (nfsd4op_rsize)nfsd4_setattr_rsize,
+ .op_get_currentstateid = (stateid_getter)nfsd4_get_setattrstateid,
},
[OP_SETCLIENTID] = {
.op_func = (nfsd4op_func)nfsd4_setclientid,
.op_flags = OP_MODIFIES_SOMETHING | OP_CACHEME,
.op_name = "OP_WRITE",
.op_rsize_bop = (nfsd4op_rsize)nfsd4_write_rsize,
+ .op_get_currentstateid = (stateid_getter)nfsd4_get_writestateid,
},
[OP_RELEASE_LOCKOWNER] = {
.op_func = (nfsd4op_func)nfsd4_release_lockowner,
},
};
+#ifdef NFSD_DEBUG
static const char *nfsd4_op_name(unsigned opnum)
{
if (opnum < ARRAY_SIZE(nfsd4_ops))
return nfsd4_ops[opnum].op_name;
return "unknown_operation";
}
+#endif
#define nfsd4_voidres nfsd4_voidargs
struct nfsd4_voidargs { int dummy; };
git.openpandora.org / pandora-kernel.git / blobdiff