int nfs4_op_release_lockowner(struct nfs_argop4 *op, compound_data_t *data, struct nfs_resop4 *resp) { RELEASE_LOCKOWNER4args * const arg_RELEASE_LOCKOWNER4 = &op->nfs_argop4_u.oprelease_lockowner; RELEASE_LOCKOWNER4res * const res_RELEASE_LOCKOWNER4 = &resp->nfs_resop4_u.oprelease_lockowner; nfs_client_id_t *nfs_client_id; state_owner_t *lock_owner; state_nfs4_owner_name_t owner_name; int rc; LogDebug(COMPONENT_NFS_V4_LOCK, "Entering NFS v4 RELEASE_LOCKOWNER handler ----------------------"); resp->resop = NFS4_OP_RELEASE_LOCKOWNER; res_RELEASE_LOCKOWNER4->status = NFS4_OK; if (data->minorversion > 0) { res_RELEASE_LOCKOWNER4->status = NFS4ERR_NOTSUPP; return res_RELEASE_LOCKOWNER4->status; } /* Check clientid */ rc = nfs_client_id_get_confirmed(arg_RELEASE_LOCKOWNER4->lock_owner. clientid, &nfs_client_id); if (rc != CLIENT_ID_SUCCESS) { res_RELEASE_LOCKOWNER4->status = clientid_error_to_nfsstat(rc); goto out2; } PTHREAD_MUTEX_lock(&nfs_client_id->cid_mutex); if (!reserve_lease(nfs_client_id)) { PTHREAD_MUTEX_unlock(&nfs_client_id->cid_mutex); dec_client_id_ref(nfs_client_id); res_RELEASE_LOCKOWNER4->status = NFS4ERR_EXPIRED; goto out2; } PTHREAD_MUTEX_unlock(&nfs_client_id->cid_mutex); /* look up the lock owner and see if we can find it */ convert_nfs4_lock_owner(&arg_RELEASE_LOCKOWNER4->lock_owner, &owner_name); /* If this lock owner is not known yet, allocated * and set up a new one */ lock_owner = create_nfs4_owner(&owner_name, nfs_client_id, STATE_LOCK_OWNER_NFSV4, NULL, 0, NULL, CARE_NOT); if (lock_owner == NULL) { /* the owner doesn't exist, we are done */ LogDebug(COMPONENT_NFS_V4_LOCK, "lock owner does not exist"); res_RELEASE_LOCKOWNER4->status = NFS4_OK; goto out1; } res_RELEASE_LOCKOWNER4->status = release_lock_owner(lock_owner); /* Release the reference to the lock owner acquired * via create_nfs4_owner */ dec_state_owner_ref(lock_owner); out1: /* Update the lease before exit */ PTHREAD_MUTEX_lock(&nfs_client_id->cid_mutex); update_lease(nfs_client_id); PTHREAD_MUTEX_unlock(&nfs_client_id->cid_mutex); dec_client_id_ref(nfs_client_id); out2: LogDebug(COMPONENT_NFS_V4_LOCK, "Leaving NFS v4 RELEASE_LOCKOWNER handler -----------------------"); return res_RELEASE_LOCKOWNER4->status; } /* nfs4_op_release_lock_owner */
int nfs4_op_lock(struct nfs_argop4 *op, compound_data_t * data, struct nfs_resop4 *resp) { char __attribute__ ((__unused__)) funcname[] = "nfs4_op_lock"; #ifndef _WITH_NFSV4_LOCKS /* Lock are not supported */ resp->resop = NFS4_OP_LOCK; res_LOCK4.status = NFS4ERR_LOCK_NOTSUPP; return res_LOCK4.status; #else state_status_t state_status; state_data_t candidate_data; state_type_t candidate_type; int rc = 0; seqid4 seqid; state_t * plock_state; /* state for the lock */ state_t * pstate_open; /* state for the open owner */ state_owner_t * plock_owner; state_owner_t * popen_owner; state_owner_t * presp_owner; /* Owner to store response in */ state_owner_t * conflict_owner = NULL; state_nfs4_owner_name_t owner_name; nfs_client_id_t nfs_client_id; state_lock_desc_t lock_desc, conflict_desc; state_blocking_t blocking = STATE_NON_BLOCKING; const char * tag = "LOCK"; LogDebug(COMPONENT_NFS_V4_LOCK, "Entering NFS v4 LOCK handler -----------------------------------------------------"); /* Initialize to sane starting values */ resp->resop = NFS4_OP_LOCK; /* If there is no FH */ if(nfs4_Is_Fh_Empty(&(data->currentFH))) { res_LOCK4.status = NFS4ERR_NOFILEHANDLE; LogDebug(COMPONENT_NFS_V4_LOCK, "LOCK failed nfs4_Is_Fh_Empty"); return res_LOCK4.status; } /* If the filehandle is invalid */ if(nfs4_Is_Fh_Invalid(&(data->currentFH))) { res_LOCK4.status = NFS4ERR_BADHANDLE; LogDebug(COMPONENT_NFS_V4_LOCK, "LOCK failed nfs4_Is_Fh_Invalid"); return res_LOCK4.status; } /* Tests if the Filehandle is expired (for volatile filehandle) */ if(nfs4_Is_Fh_Expired(&(data->currentFH))) { res_LOCK4.status = NFS4ERR_FHEXPIRED; LogDebug(COMPONENT_NFS_V4_LOCK, "LOCK failed nfs4_Is_Fh_Expired"); return res_LOCK4.status; } /* Lock is done only on a file */ if(data->current_filetype != REGULAR_FILE) { /* Type of the entry is not correct */ switch (data->current_filetype) { case DIRECTORY: res_LOCK4.status = NFS4ERR_ISDIR; break; default: res_LOCK4.status = NFS4ERR_INVAL; break; } LogDebug(COMPONENT_NFS_V4_LOCK, "LOCK failed wrong file type"); return res_LOCK4.status; } /* Convert lock parameters to internal types */ switch(arg_LOCK4.locktype) { case READ_LT: lock_desc.sld_type = STATE_LOCK_R; blocking = STATE_NON_BLOCKING; break; case WRITE_LT: lock_desc.sld_type = STATE_LOCK_W; blocking = STATE_NON_BLOCKING; break; case READW_LT: lock_desc.sld_type = STATE_LOCK_R; blocking = STATE_NFSV4_BLOCKING; break; case WRITEW_LT: lock_desc.sld_type = STATE_LOCK_W; blocking = STATE_NFSV4_BLOCKING; break; } lock_desc.sld_offset = arg_LOCK4.offset; if(arg_LOCK4.length != STATE_LOCK_OFFSET_EOF) lock_desc.sld_length = arg_LOCK4.length; else lock_desc.sld_length = 0; if(arg_LOCK4.locker.new_lock_owner) { /* New lock owner, Find the open owner */ tag = "LOCK (new owner)"; /* Check stateid correctness and get pointer to state */ if((rc = nfs4_Check_Stateid(&arg_LOCK4.locker.locker4_u.open_owner.open_stateid, data->current_entry, 0LL, &pstate_open, data, STATEID_SPECIAL_FOR_LOCK, tag)) != NFS4_OK) { res_LOCK4.status = rc; LogDebug(COMPONENT_NFS_V4_LOCK, "LOCK failed nfs4_Check_Stateid for open owner"); return res_LOCK4.status; } popen_owner = pstate_open->state_powner; plock_state = NULL; plock_owner = NULL; presp_owner = popen_owner; seqid = arg_LOCK4.locker.locker4_u.open_owner.open_seqid; LogLock(COMPONENT_NFS_V4_LOCK, NIV_FULL_DEBUG, "LOCK New lock owner from open owner", data->current_entry, data->pcontext, popen_owner, &lock_desc); /* Check is the clientid is known or not */ if(nfs_client_id_get(arg_LOCK4.locker.locker4_u.open_owner.lock_owner.clientid, &nfs_client_id) == CLIENT_ID_NOT_FOUND) { res_LOCK4.status = NFS4ERR_STALE_CLIENTID; LogDebug(COMPONENT_NFS_V4_LOCK, "LOCK failed nfs_client_id_get"); return res_LOCK4.status; } /* The related stateid is already stored in pstate_open */ /* An open state has been found. Check its type */ if(pstate_open->state_type != STATE_TYPE_SHARE) { res_LOCK4.status = NFS4ERR_BAD_STATEID; LogDebug(COMPONENT_NFS_V4_LOCK, "LOCK failed open stateid is not a SHARE"); return res_LOCK4.status; } /* Lock seqid (seqid wanted for new lock) should be 0 (see newpynfs test LOCK8c) */ if(arg_LOCK4.locker.locker4_u.open_owner.lock_seqid != 0) { res_LOCK4.status = NFS4ERR_BAD_SEQID; LogDebug(COMPONENT_NFS_V4_LOCK, "LOCK failed new lock stateid is not 0"); return res_LOCK4.status; } /* Is this lock_owner known ? */ convert_nfs4_lock_owner(&arg_LOCK4.locker.locker4_u.open_owner.lock_owner, &owner_name); } else { /* Existing lock owner * Find the lock stateid * From that, get the open_owner */ tag = "LOCK (existing owner)"; /* There was code here before to handle all-0 stateid, but that * really doesn't apply - when we handle temporary locks for * I/O operations (which is where we will see all-0 or all-1 * stateid, those will not come in through nfs4_op_lock. */ /* Check stateid correctness and get pointer to state */ if((rc = nfs4_Check_Stateid(&arg_LOCK4.locker.locker4_u.lock_owner.lock_stateid, data->current_entry, 0LL, &plock_state, data, STATEID_SPECIAL_FOR_LOCK, tag)) != NFS4_OK) { res_LOCK4.status = rc; LogDebug(COMPONENT_NFS_V4_LOCK, "LOCK failed nfs4_Check_Stateid for existing lock owner"); return res_LOCK4.status; } /* An lock state has been found. Check its type */ if(plock_state->state_type != STATE_TYPE_LOCK) { res_LOCK4.status = NFS4ERR_BAD_STATEID; LogDebug(COMPONENT_NFS_V4_LOCK, "LOCK failed existing lock owner, state type is not LOCK"); return res_LOCK4.status; } /* Get the old lockowner. We can do the following 'cast', in NFSv4 lock_owner4 and open_owner4 * are different types but with the same definition*/ plock_owner = plock_state->state_powner; popen_owner = plock_owner->so_owner.so_nfs4_owner.so_related_owner; pstate_open = plock_state->state_data.lock.popenstate; presp_owner = plock_owner; seqid = arg_LOCK4.locker.locker4_u.lock_owner.lock_seqid; LogLock(COMPONENT_NFS_V4_LOCK, NIV_FULL_DEBUG, "LOCK Existing lock owner", data->current_entry, data->pcontext, plock_owner, &lock_desc); #ifdef _CONFORM_TO_TEST_LOCK8c /* Check validity of the seqid */ if(arg_LOCK4.locker.locker4_u.lock_owner.lock_seqid != 0) { res_LOCK4.status = NFS4ERR_BAD_SEQID; LogDebug(COMPONENT_NFS_V4_LOCK, "LOCK failed existing lock owner, lock seqid != 0"); return res_LOCK4.status; } #endif } /* if( arg_LOCK4.locker.new_lock_owner ) */ /* Check seqid (lock_seqid or open_seqid) */ if(!Check_nfs4_seqid(presp_owner, seqid, op, data, resp, tag)) { /* Response is all setup for us and LogDebug told what was wrong */ return res_LOCK4.status; } /* Lock length should not be 0 */ if(arg_LOCK4.length == 0LL) { res_LOCK4.status = NFS4ERR_INVAL; LogDebug(COMPONENT_NFS_V4_LOCK, "LOCK failed length == 0"); /* Save the response in the lock or open owner */ Copy_nfs4_state_req(presp_owner, seqid, op, data, resp, tag); return res_LOCK4.status; } /* Check for range overflow. * Comparing beyond 2^64 is not possible int 64 bits precision, * but off+len > 2^64-1 is equivalent to len > 2^64-1 - off */ if(lock_desc.sld_length > (STATE_LOCK_OFFSET_EOF - lock_desc.sld_offset)) { res_LOCK4.status = NFS4ERR_INVAL; LogDebug(COMPONENT_NFS_V4_LOCK, "LOCK failed length overflow"); /* Save the response in the lock or open owner */ Copy_nfs4_state_req(presp_owner, seqid, op, data, resp, tag); return res_LOCK4.status; } /* check if open state has correct access for type of lock. * Don't need to check for conflicting states since this open * state assures there are no conflicting states. */ if(((arg_LOCK4.locktype == WRITE_LT || arg_LOCK4.locktype == WRITEW_LT) && ((pstate_open->state_data.share.share_access & OPEN4_SHARE_ACCESS_WRITE) == 0)) || ((arg_LOCK4.locktype == READ_LT || arg_LOCK4.locktype == READW_LT) && ((pstate_open->state_data.share.share_access & OPEN4_SHARE_ACCESS_READ) == 0))) { /* The open state doesn't allow access based on the type of lock */ LogLock(COMPONENT_NFS_V4_LOCK, NIV_DEBUG, "LOCK failed, SHARE doesn't allow access", data->current_entry, data->pcontext, plock_owner, &lock_desc); res_LOCK4.status = NFS4ERR_OPENMODE; /* Save the response in the lock or open owner */ Copy_nfs4_state_req(presp_owner, seqid, op, data, resp, tag); return res_LOCK4.status; } if(arg_LOCK4.locker.new_lock_owner) { /* A lock owner is always associated with a previously made open * which has itself a previously made stateid */ /* Get reference to open owner */ inc_state_owner_ref(popen_owner); if(nfs4_owner_Get_Pointer(&owner_name, &plock_owner)) { /* Lock owner already existsc, check lock_seqid if it's not 0 */ if(!Check_nfs4_seqid(plock_owner, arg_LOCK4.locker.locker4_u.open_owner.lock_seqid, op, data, resp, "LOCK (new owner but owner exists)")) { /* Response is all setup for us and LogDebug told what was wrong */ return res_LOCK4.status; } } else { /* This lock owner is not known yet, allocated and set up a new one */ plock_owner = create_nfs4_owner(data->pclient, &owner_name, STATE_LOCK_OWNER_NFSV4, popen_owner, 0); if(plock_owner == NULL) { res_LOCK4.status = NFS4ERR_RESOURCE; LogLock(COMPONENT_NFS_V4_LOCK, NIV_DEBUG, "LOCK failed to create new lock owner", data->current_entry, data->pcontext, popen_owner, &lock_desc); return res_LOCK4.status; } } /* Prepare state management structure */ memset(&candidate_type, 0, sizeof(candidate_type)); candidate_type = STATE_TYPE_LOCK; candidate_data.lock.popenstate = pstate_open; /* Add the lock state to the lock table */ if(state_add(data->current_entry, candidate_type, &candidate_data, plock_owner, data->pclient, data->pcontext, &plock_state, &state_status) != STATE_SUCCESS) { res_LOCK4.status = NFS4ERR_RESOURCE; LogLock(COMPONENT_NFS_V4_LOCK, NIV_DEBUG, "LOCK failed to add new stateid", data->current_entry, data->pcontext, plock_owner, &lock_desc); dec_state_owner_ref(plock_owner, data->pclient); return res_LOCK4.status; } init_glist(&plock_state->state_data.lock.state_locklist); /* Add lock state to the list of lock states belonging to the open state */ glist_add_tail(&pstate_open->state_data.share.share_lockstates, &plock_state->state_data.lock.state_sharelist); } /* if( arg_LOCK4.locker.new_lock_owner ) */ /* Now we have a lock owner and a stateid. * Go ahead and push lock into SAL (and FSAL). */ if(state_lock(data->current_entry, data->pcontext, plock_owner, plock_state, blocking, NULL, /* No block data for now */ &lock_desc, &conflict_owner, &conflict_desc, data->pclient, &state_status) != STATE_SUCCESS) { if(state_status == STATE_LOCK_CONFLICT) { /* A conflicting lock from a different lock_owner, returns NFS4ERR_DENIED */ Process_nfs4_conflict(&res_LOCK4.LOCK4res_u.denied, conflict_owner, &conflict_desc, data->pclient); } LogDebug(COMPONENT_NFS_V4_LOCK, "LOCK failed with status %s", state_err_str(state_status)); res_LOCK4.status = nfs4_Errno_state(state_status); /* Save the response in the lock or open owner */ if(res_LOCK4.status != NFS4ERR_RESOURCE && res_LOCK4.status != NFS4ERR_BAD_STATEID) Copy_nfs4_state_req(presp_owner, seqid, op, data, resp, tag); if(arg_LOCK4.locker.new_lock_owner) { /* Need to destroy lock owner and state */ if(state_del(plock_state, data->pclient, &state_status) != STATE_SUCCESS) LogDebug(COMPONENT_NFS_V4_LOCK, "state_del failed with status %s", state_err_str(state_status)); } return res_LOCK4.status; } res_LOCK4.status = NFS4_OK; /* Handle stateid/seqid for success */ update_stateid(plock_state, &res_LOCK4.LOCK4res_u.resok4.lock_stateid, data, tag); LogFullDebug(COMPONENT_NFS_V4_LOCK, "LOCK state_seqid = %u, plock_state = %p", plock_state->state_seqid, plock_state); /* Save the response in the lock or open owner */ Copy_nfs4_state_req(presp_owner, seqid, op, data, resp, tag); LogLock(COMPONENT_NFS_V4_LOCK, NIV_FULL_DEBUG, "LOCK applied", data->current_entry, data->pcontext, plock_owner, &lock_desc); return res_LOCK4.status; #endif } /* nfs4_op_lock */
int nfs4_op_lockt(struct nfs_argop4 *op, compound_data_t *data, struct nfs_resop4 *resp) { /* Alias for arguments */ LOCKT4args * const arg_LOCKT4 = &op->nfs_argop4_u.oplockt; /* Alias for response */ LOCKT4res * const res_LOCKT4 = &resp->nfs_resop4_u.oplockt; /* Return code from state calls */ state_status_t state_status = STATE_SUCCESS; /* Client id record */ nfs_client_id_t *clientid = NULL; /* Lock owner name */ state_nfs4_owner_name_t owner_name; /* Lock owner record */ state_owner_t *lock_owner = NULL; /* Owner of conflicting lock */ state_owner_t *conflict_owner = NULL; /* Description of lock to test */ fsal_lock_param_t lock_desc = { FSAL_NO_LOCK, 0, 0 }; /* Description of conflicting lock */ fsal_lock_param_t conflict_desc; /* return code from id confirm calls */ int rc; LogDebug(COMPONENT_NFS_V4_LOCK, "Entering NFS v4 LOCKT handler ----------------------------"); /* Initialize to sane default */ resp->resop = NFS4_OP_LOCKT; res_LOCKT4->status = nfs4_sanity_check_FH(data, REGULAR_FILE, false); if (res_LOCKT4->status != NFS4_OK) return res_LOCKT4->status; /* Lock length should not be 0 */ if (arg_LOCKT4->length == 0LL) { res_LOCKT4->status = NFS4ERR_INVAL; return res_LOCKT4->status; } if (nfs_in_grace()) { res_LOCKT4->status = NFS4ERR_GRACE; return res_LOCKT4->status; } /* Convert lock parameters to internal types */ switch (arg_LOCKT4->locktype) { case READ_LT: case READW_LT: lock_desc.lock_type = FSAL_LOCK_R; break; case WRITE_LT: case WRITEW_LT: lock_desc.lock_type = FSAL_LOCK_W; break; default: LogDebug(COMPONENT_NFS_V4_LOCK, "Invalid lock type"); res_LOCKT4->status = NFS4ERR_INVAL; return res_LOCKT4->status; } lock_desc.lock_start = arg_LOCKT4->offset; if (arg_LOCKT4->length != STATE_LOCK_OFFSET_EOF) lock_desc.lock_length = arg_LOCKT4->length; else lock_desc.lock_length = 0; /* Check for range overflow. Comparing beyond 2^64 is not * possible in 64 bit precision, but off+len > 2^64-1 is * equivalent to len > 2^64-1 - off */ if (lock_desc.lock_length > (STATE_LOCK_OFFSET_EOF - lock_desc.lock_start)) { res_LOCKT4->status = NFS4ERR_INVAL; return res_LOCKT4->status; } /* Check clientid */ rc = nfs_client_id_get_confirmed(data->minorversion == 0 ? arg_LOCKT4->owner.clientid : data->session->clientid, &clientid); if (rc != CLIENT_ID_SUCCESS) { res_LOCKT4->status = clientid_error_to_nfsstat(rc); return res_LOCKT4->status; } PTHREAD_MUTEX_lock(&clientid->cid_mutex); if (data->minorversion == 0 && !reserve_lease(clientid)) { PTHREAD_MUTEX_unlock(&clientid->cid_mutex); dec_client_id_ref(clientid); res_LOCKT4->status = NFS4ERR_EXPIRED; return res_LOCKT4->status; } PTHREAD_MUTEX_unlock(&clientid->cid_mutex); /* Is this lock_owner known ? */ convert_nfs4_lock_owner(&arg_LOCKT4->owner, &owner_name); /* This lock owner is not known yet, allocated and set up a new one */ lock_owner = create_nfs4_owner(&owner_name, clientid, STATE_LOCK_OWNER_NFSV4, NULL, 0, NULL, CARE_ALWAYS); LogStateOwner("Lock: ", lock_owner); if (lock_owner == NULL) { LogEvent(COMPONENT_NFS_V4_LOCK, "LOCKT unable to create lock owner"); res_LOCKT4->status = NFS4ERR_SERVERFAULT; goto out; } LogLock(COMPONENT_NFS_V4_LOCK, NIV_FULL_DEBUG, "LOCKT", data->current_entry, lock_owner, &lock_desc); if (data->minorversion == 0) { op_ctx->clientid = &lock_owner->so_owner.so_nfs4_owner.so_clientid; } /* Now we have a lock owner and a stateid. Go ahead and test * the lock in SAL (and FSAL). */ state_status = state_test(data->current_entry, lock_owner, &lock_desc, &conflict_owner, &conflict_desc); if (state_status == STATE_LOCK_CONFLICT) { /* A conflicting lock from a different lock_owner, * returns NFS4ERR_DENIED */ LogStateOwner("Conflict: ", conflict_owner); Process_nfs4_conflict(&res_LOCKT4->LOCKT4res_u.denied, conflict_owner, &conflict_desc); } if (data->minorversion == 0) op_ctx->clientid = NULL; /* Release NFS4 Open Owner reference */ dec_state_owner_ref(lock_owner); /* Return result */ res_LOCKT4->status = nfs4_Errno_state(state_status); out: /* Update the lease before exit */ if (data->minorversion == 0) { PTHREAD_MUTEX_lock(&clientid->cid_mutex); update_lease(clientid); PTHREAD_MUTEX_unlock(&clientid->cid_mutex); } dec_client_id_ref(clientid); return res_LOCKT4->status; } /* nfs4_op_lockt */
int nfs4_op_lock(struct nfs_argop4 *op, compound_data_t *data, struct nfs_resop4 *resp) { /* Shorter alias for arguments */ LOCK4args * const arg_LOCK4 = &op->nfs_argop4_u.oplock; /* Shorter alias for response */ LOCK4res * const res_LOCK4 = &resp->nfs_resop4_u.oplock; /* Status code from state calls */ state_status_t state_status = STATE_SUCCESS; /* Data for lock state to be created */ union state_data candidate_data; /* Status code for protocol functions */ nfsstat4 nfs_status = 0; /* Created or found lock state */ state_t *lock_state = NULL; /* Associated open state */ state_t *state_open = NULL; /* The lock owner */ state_owner_t *lock_owner = NULL; /* The open owner */ state_owner_t *open_owner = NULL; /* The owner of a conflicting lock */ state_owner_t *conflict_owner = NULL; /* The owner in which to store the response for NFSv4.0 */ state_owner_t *resp_owner = NULL; /* Sequence ID, for NFSv4.0 */ seqid4 seqid = 0; /* The client performing these operations */ nfs_client_id_t *clientid = NULL; /* Name for the lock owner */ state_nfs4_owner_name_t owner_name; /* Description of requrested lock */ fsal_lock_param_t lock_desc; /* Description of conflicting lock */ fsal_lock_param_t conflict_desc; /* Whether to block */ state_blocking_t blocking = STATE_NON_BLOCKING; /* Tracking data for the lock state */ struct state_refer refer; /* Indicate if we let FSAL to handle requests during grace. */ bool_t fsal_grace = false; int rc; LogDebug(COMPONENT_NFS_V4_LOCK, "Entering NFS v4 LOCK handler ----------------------"); /* Initialize to sane starting values */ resp->resop = NFS4_OP_LOCK; res_LOCK4->status = NFS4_OK; /* Record the sequence info */ if (data->minorversion > 0) { memcpy(refer.session, data->session->session_id, sizeof(sessionid4)); refer.sequence = data->sequence; refer.slot = data->slot; } res_LOCK4->status = nfs4_sanity_check_FH(data, REGULAR_FILE, false); if (res_LOCK4->status != NFS4_OK) return res_LOCK4->status; /* Convert lock parameters to internal types */ switch (arg_LOCK4->locktype) { case READW_LT: blocking = STATE_NFSV4_BLOCKING; /* Fall through */ case READ_LT: lock_desc.lock_type = FSAL_LOCK_R; break; case WRITEW_LT: blocking = STATE_NFSV4_BLOCKING; /* Fall through */ case WRITE_LT: lock_desc.lock_type = FSAL_LOCK_W; break; default: LogDebug(COMPONENT_NFS_V4_LOCK, "Invalid lock type"); res_LOCK4->status = NFS4ERR_INVAL; return res_LOCK4->status; } lock_desc.lock_start = arg_LOCK4->offset; lock_desc.lock_sle_type = FSAL_POSIX_LOCK; lock_desc.lock_reclaim = arg_LOCK4->reclaim; if (arg_LOCK4->length != STATE_LOCK_OFFSET_EOF) lock_desc.lock_length = arg_LOCK4->length; else lock_desc.lock_length = 0; if (arg_LOCK4->locker.new_lock_owner) { /* Check stateid correctness and get pointer to state */ nfs_status = nfs4_Check_Stateid( &arg_LOCK4->locker.locker4_u.open_owner.open_stateid, data->current_obj, &state_open, data, STATEID_SPECIAL_FOR_LOCK, arg_LOCK4->locker.locker4_u.open_owner.open_seqid, data->minorversion == 0, lock_tag); if (nfs_status != NFS4_OK) { if (nfs_status == NFS4ERR_REPLAY) { open_owner = get_state_owner_ref(state_open); LogStateOwner("Open: ", open_owner); if (open_owner != NULL) { resp_owner = open_owner; seqid = arg_LOCK4->locker.locker4_u .open_owner.open_seqid; goto check_seqid; } } res_LOCK4->status = nfs_status; LogDebug(COMPONENT_NFS_V4_LOCK, "LOCK failed nfs4_Check_Stateid for open owner"); return res_LOCK4->status; } open_owner = get_state_owner_ref(state_open); LogStateOwner("Open: ", open_owner); if (open_owner == NULL) { /* State is going stale. */ res_LOCK4->status = NFS4ERR_STALE; LogDebug(COMPONENT_NFS_V4_LOCK, "LOCK failed nfs4_Check_Stateid, stale open owner"); goto out2; } lock_state = NULL; lock_owner = NULL; resp_owner = open_owner; seqid = arg_LOCK4->locker.locker4_u.open_owner.open_seqid; LogLock(COMPONENT_NFS_V4_LOCK, NIV_FULL_DEBUG, "LOCK New lock owner from open owner", data->current_obj, open_owner, &lock_desc); /* Check is the clientid is known or not */ rc = nfs_client_id_get_confirmed( data->minorversion == 0 ? arg_LOCK4->locker. locker4_u.open_owner.lock_owner.clientid : data->session->clientid, &clientid); if (rc != CLIENT_ID_SUCCESS) { res_LOCK4->status = clientid_error_to_nfsstat(rc); LogDebug(COMPONENT_NFS_V4_LOCK, "LOCK failed nfs_client_id_get"); goto out2; } if (isDebug(COMPONENT_CLIENTID) && (clientid != open_owner->so_owner.so_nfs4_owner.so_clientrec)) { char str_open[LOG_BUFF_LEN / 2]; struct display_buffer dspbuf_open = { sizeof(str_open), str_open, str_open}; char str_lock[LOG_BUFF_LEN / 2]; struct display_buffer dspbuf_lock = { sizeof(str_lock), str_lock, str_lock}; display_client_id_rec(&dspbuf_open, open_owner->so_owner .so_nfs4_owner.so_clientrec); display_client_id_rec(&dspbuf_lock, clientid); LogDebug(COMPONENT_CLIENTID, "Unexpected, new lock owner clientid {%s} doesn't match open owner clientid {%s}", str_lock, str_open); } /* The related stateid is already stored in state_open */ /* An open state has been found. Check its type */ if (state_open->state_type != STATE_TYPE_SHARE) { res_LOCK4->status = NFS4ERR_BAD_STATEID; LogDebug(COMPONENT_NFS_V4_LOCK, "LOCK failed open stateid is not a SHARE"); goto out2; } /* Is this lock_owner known ? */ convert_nfs4_lock_owner(&arg_LOCK4->locker.locker4_u.open_owner. lock_owner, &owner_name); LogStateOwner("Lock: ", lock_owner); } else { /* Existing lock owner Find the lock stateid From * that, get the open_owner * * There was code here before to handle all-0 stateid, * but that really doesn't apply - when we handle * temporary locks for I/O operations (which is where * we will see all-0 or all-1 stateid, those will not * come in through nfs4_op_lock. * * Check stateid correctness and get pointer to state */ nfs_status = nfs4_Check_Stateid( &arg_LOCK4->locker.locker4_u.lock_owner.lock_stateid, data->current_obj, &lock_state, data, STATEID_SPECIAL_FOR_LOCK, arg_LOCK4->locker.locker4_u.lock_owner.lock_seqid, data->minorversion == 0, lock_tag); if (nfs_status != NFS4_OK) { if (nfs_status == NFS4ERR_REPLAY) { lock_owner = get_state_owner_ref(lock_state); LogStateOwner("Lock: ", lock_owner); if (lock_owner != NULL) { open_owner = lock_owner->so_owner .so_nfs4_owner.so_related_owner; inc_state_owner_ref(open_owner); resp_owner = lock_owner; seqid = arg_LOCK4->locker.locker4_u .lock_owner.lock_seqid; goto check_seqid; } } res_LOCK4->status = nfs_status; LogDebug(COMPONENT_NFS_V4_LOCK, "LOCK failed nfs4_Check_Stateid for existing lock owner"); return res_LOCK4->status; } /* Check if lock state belongs to same export */ if (!state_same_export(lock_state, op_ctx->ctx_export)) { LogEvent(COMPONENT_STATE, "Lock Owner Export Conflict, Lock held for export %" PRIu16" request for export %"PRIu16, state_export_id(lock_state), op_ctx->ctx_export->export_id); res_LOCK4->status = NFS4ERR_INVAL; goto out2; } /* A lock state has been found. Check its type */ if (lock_state->state_type != STATE_TYPE_LOCK) { res_LOCK4->status = NFS4ERR_BAD_STATEID; LogDebug(COMPONENT_NFS_V4_LOCK, "LOCK failed existing lock owner, state type is not LOCK"); goto out2; } /* Get the old lockowner. We can do the following * 'cast', in NFSv4 lock_owner4 and open_owner4 are * different types but with the same definition */ lock_owner = get_state_owner_ref(lock_state); LogStateOwner("Lock: ", lock_owner); if (lock_owner == NULL) { /* State is going stale. */ res_LOCK4->status = NFS4ERR_STALE; LogDebug(COMPONENT_NFS_V4_LOCK, "LOCK failed nfs4_Check_Stateid, stale open owner"); goto out2; } open_owner = lock_owner->so_owner.so_nfs4_owner.so_related_owner; LogStateOwner("Open: ", open_owner); inc_state_owner_ref(open_owner); state_open = lock_state->state_data.lock.openstate; inc_state_t_ref(state_open); resp_owner = lock_owner; seqid = arg_LOCK4->locker.locker4_u.lock_owner.lock_seqid; LogLock(COMPONENT_NFS_V4_LOCK, NIV_FULL_DEBUG, "LOCK Existing lock owner", data->current_obj, lock_owner, &lock_desc); /* Get the client for this open owner */ clientid = open_owner->so_owner.so_nfs4_owner.so_clientrec; inc_client_id_ref(clientid); } check_seqid: /* Check seqid (lock_seqid or open_seqid) */ if (data->minorversion == 0) { if (!Check_nfs4_seqid(resp_owner, seqid, op, data->current_obj, resp, lock_tag)) { /* Response is all setup for us and LogDebug * told what was wrong */ goto out2; } } /* Lock length should not be 0 */ if (arg_LOCK4->length == 0LL) { res_LOCK4->status = NFS4ERR_INVAL; LogDebug(COMPONENT_NFS_V4_LOCK, "LOCK failed length == 0"); goto out; } /* Check for range overflow. Comparing beyond 2^64 is not * possible int 64 bits precision, but off+len > 2^64-1 is * equivalent to len > 2^64-1 - off */ if (lock_desc.lock_length > (STATE_LOCK_OFFSET_EOF - lock_desc.lock_start)) { res_LOCK4->status = NFS4ERR_INVAL; LogDebug(COMPONENT_NFS_V4_LOCK, "LOCK failed length overflow"); goto out; } /* Check if open state has correct access for type of lock. * * Don't need to check for conflicting states since this open * state assures there are no conflicting states. */ if (((arg_LOCK4->locktype == WRITE_LT || arg_LOCK4->locktype == WRITEW_LT) && ((state_open->state_data.share.share_access & OPEN4_SHARE_ACCESS_WRITE) == 0)) || ((arg_LOCK4->locktype == READ_LT || arg_LOCK4->locktype == READW_LT) && ((state_open->state_data.share.share_access & OPEN4_SHARE_ACCESS_READ) == 0))) { /* The open state doesn't allow access based on the * type of lock */ LogLock(COMPONENT_NFS_V4_LOCK, NIV_DEBUG, "LOCK failed, SHARE doesn't allow access", data->current_obj, lock_owner, &lock_desc); res_LOCK4->status = NFS4ERR_OPENMODE; goto out; } /* Do grace period checking (use resp_owner below since a new * lock request with a new lock owner doesn't have a lock owner * yet, but does have an open owner - resp_owner is always one or * the other and non-NULL at this point - so makes for a better log). */ if (nfs_in_grace()) { if (op_ctx->fsal_export->exp_ops. fs_supports(op_ctx->fsal_export, fso_grace_method)) fsal_grace = true; if (!fsal_grace && !arg_LOCK4->reclaim) { LogLock(COMPONENT_NFS_V4_LOCK, NIV_DEBUG, "LOCK failed, non-reclaim while in grace", data->current_obj, resp_owner, &lock_desc); res_LOCK4->status = NFS4ERR_GRACE; goto out; } if (!fsal_grace && arg_LOCK4->reclaim && !clientid->cid_allow_reclaim) { LogLock(COMPONENT_NFS_V4_LOCK, NIV_DEBUG, "LOCK failed, invalid reclaim while in grace", data->current_obj, resp_owner, &lock_desc); res_LOCK4->status = NFS4ERR_NO_GRACE; goto out; } } else { if (arg_LOCK4->reclaim) { LogLock(COMPONENT_NFS_V4_LOCK, NIV_DEBUG, "LOCK failed, reclaim while not in grace", data->current_obj, resp_owner, &lock_desc); res_LOCK4->status = NFS4ERR_NO_GRACE; goto out; } } /* Test if this request is attempting to create a new lock owner */ if (arg_LOCK4->locker.new_lock_owner) { bool_t isnew; /* A lock owner is always associated with a previously made open which has itself a previously made stateid */ /* This lock owner is not known yet, allocated and set up a new one */ lock_owner = create_nfs4_owner(&owner_name, clientid, STATE_LOCK_OWNER_NFSV4, open_owner, 0, &isnew, CARE_ALWAYS); LogStateOwner("Lock: ", lock_owner); if (lock_owner == NULL) { res_LOCK4->status = NFS4ERR_RESOURCE; LogLock(COMPONENT_NFS_V4_LOCK, NIV_EVENT, "LOCK failed to create new lock owner", data->current_obj, open_owner, &lock_desc); goto out2; } if (!isnew) { PTHREAD_MUTEX_lock(&lock_owner->so_mutex); /* Check lock_seqid if it has attached locks. */ if (!glist_empty(&lock_owner->so_lock_list) && (data->minorversion == 0) && !Check_nfs4_seqid(lock_owner, arg_LOCK4->locker.locker4_u. open_owner.lock_seqid, op, data->current_obj, resp, lock_tag)) { LogLock(COMPONENT_NFS_V4_LOCK, NIV_DEBUG, "LOCK failed to create new lock owner, re-use", data->current_obj, open_owner, &lock_desc); dump_all_locks( "All locks (re-use of lock owner)"); PTHREAD_MUTEX_unlock(&lock_owner->so_mutex); /* Response is all setup for us and * LogDebug told what was wrong */ goto out2; } PTHREAD_MUTEX_unlock(&lock_owner->so_mutex); /* Lock owner is known, see if we also already have * a stateid. Do this here since it's impossible for * there to be such a state if the lock owner was * previously unknown. */ lock_state = nfs4_State_Get_Obj(data->current_obj, lock_owner); } if (lock_state == NULL) { /* Prepare state management structure */ memset(&candidate_data, 0, sizeof(candidate_data)); candidate_data.lock.openstate = state_open; /* Add the lock state to the lock table */ state_status = state_add(data->current_obj, STATE_TYPE_LOCK, &candidate_data, lock_owner, &lock_state, data->minorversion > 0 ? &refer : NULL); if (state_status != STATE_SUCCESS) { res_LOCK4->status = NFS4ERR_RESOURCE; LogLock(COMPONENT_NFS_V4_LOCK, NIV_DEBUG, "LOCK failed to add new stateid", data->current_obj, lock_owner, &lock_desc); goto out2; } glist_init(&lock_state->state_data.lock.state_locklist); /* Add lock state to the list of lock states belonging to the open state */ glist_add_tail( &state_open->state_data.share.share_lockstates, &lock_state->state_data.lock.state_sharelist); } } if (data->minorversion == 0) { op_ctx->clientid = &lock_owner->so_owner.so_nfs4_owner.so_clientid; } /* Now we have a lock owner and a stateid. Go ahead and push * lock into SAL (and FSAL). */ state_status = state_lock(data->current_obj, lock_owner, lock_state, blocking, NULL, /* No block data for now */ &lock_desc, &conflict_owner, &conflict_desc); if (state_status != STATE_SUCCESS) { if (state_status == STATE_LOCK_CONFLICT) { /* A conflicting lock from a different lock_owner, returns NFS4ERR_DENIED */ Process_nfs4_conflict(&res_LOCK4->LOCK4res_u.denied, conflict_owner, &conflict_desc); } LogDebug(COMPONENT_NFS_V4_LOCK, "LOCK failed with status %s", state_err_str(state_status)); res_LOCK4->status = nfs4_Errno_state(state_status); /* Save the response in the lock or open owner */ if (res_LOCK4->status != NFS4ERR_RESOURCE && res_LOCK4->status != NFS4ERR_BAD_STATEID && data->minorversion == 0) { Copy_nfs4_state_req(resp_owner, seqid, op, data->current_obj, resp, lock_tag); } if (arg_LOCK4->locker.new_lock_owner) { /* Need to destroy new state */ state_del(lock_state); } goto out2; } if (data->minorversion == 0) op_ctx->clientid = NULL; res_LOCK4->status = NFS4_OK; /* Handle stateid/seqid for success */ update_stateid(lock_state, &res_LOCK4->LOCK4res_u.resok4.lock_stateid, data, lock_tag); if (arg_LOCK4->locker.new_lock_owner) { /* Also save the response in the lock owner */ Copy_nfs4_state_req(lock_owner, arg_LOCK4->locker.locker4_u.open_owner. lock_seqid, op, data->current_obj, resp, lock_tag); } if (isFullDebug(COMPONENT_NFS_V4_LOCK)) { char str[LOG_BUFF_LEN]; struct display_buffer dspbuf = {sizeof(str), str, str}; display_stateid(&dspbuf, lock_state); LogFullDebug(COMPONENT_NFS_V4_LOCK, "LOCK stateid %s", str); } LogLock(COMPONENT_NFS_V4_LOCK, NIV_FULL_DEBUG, "LOCK applied", data->current_obj, lock_owner, &lock_desc); out: if (data->minorversion == 0) { /* Save the response in the lock or open owner */ Copy_nfs4_state_req(resp_owner, seqid, op, data->current_obj, resp, lock_tag); } out2: if (state_open != NULL) dec_state_t_ref(state_open); if (lock_state != NULL) dec_state_t_ref(lock_state); LogStateOwner("Open: ", open_owner); LogStateOwner("Lock: ", lock_owner); if (open_owner != NULL) dec_state_owner_ref(open_owner); if (lock_owner != NULL) dec_state_owner_ref(lock_owner); if (clientid != NULL) dec_client_id_ref(clientid); return res_LOCK4->status; } /* nfs4_op_lock */
int nfs4_op_release_lockowner(struct nfs_argop4 * op, compound_data_t * data, struct nfs_resop4 * resp) { nfs_client_id_t * pnfs_client_id; state_owner_t * plock_owner; state_nfs4_owner_name_t owner_name; int rc; LogDebug(COMPONENT_NFS_V4_LOCK, "Entering NFS v4 RELEASE_LOCKOWNER handler -----------------------------------------------------"); resp->resop = NFS4_OP_RELEASE_LOCKOWNER; res_RELEASE_LOCKOWNER4.status = NFS4_OK; /* Check clientid */ rc = nfs_client_id_get_confirmed(arg_RELEASE_LOCKOWNER4.lock_owner.clientid, &pnfs_client_id); if(rc != CLIENT_ID_SUCCESS) { res_RELEASE_LOCKOWNER4.status = clientid_error_to_nfsstat(rc); goto out2; } P(pnfs_client_id->cid_mutex); if(!reserve_lease(pnfs_client_id)) { V(pnfs_client_id->cid_mutex); dec_client_id_ref(pnfs_client_id); res_RELEASE_LOCKOWNER4.status = NFS4ERR_EXPIRED; goto out2; } V(pnfs_client_id->cid_mutex); /* look up the lock owner and see if we can find it */ convert_nfs4_lock_owner(&arg_RELEASE_LOCKOWNER4.lock_owner, &owner_name); /* If this open owner is not known yet, allocated and set up a new one */ plock_owner = create_nfs4_owner(&owner_name, pnfs_client_id, STATE_OPEN_OWNER_NFSV4, NULL, 0, NULL, CARE_NOT); if(plock_owner == NULL) { /* the owner doesn't exist, we are done */ LogDebug(COMPONENT_NFS_V4_LOCK, "lock owner does not exist"); res_RELEASE_LOCKOWNER4.status = NFS4_OK; goto out1; } P(plock_owner->so_mutex); /* got the owner, does it still have any locks being held */ if(!glist_empty(&plock_owner->so_lock_list)) { V(plock_owner->so_mutex); res_RELEASE_LOCKOWNER4.status = NFS4ERR_LOCKS_HELD; } else { V(plock_owner->so_mutex); /* found the lock owner and it doesn't have any locks, release it */ release_lockstate(plock_owner); res_RELEASE_LOCKOWNER4.status = NFS4_OK; } /* Release the reference to the lock owner acquired via create_nfs4_owner */ dec_state_owner_ref(plock_owner); out1: /* Update the lease before exit */ P(pnfs_client_id->cid_mutex); update_lease(pnfs_client_id); V(pnfs_client_id->cid_mutex); dec_client_id_ref(pnfs_client_id); out2: LogDebug(COMPONENT_NFS_V4_LOCK, "Leaving NFS v4 RELEASE_LOCKOWNER handler -----------------------------------------------------"); return res_RELEASE_LOCKOWNER4.status; } /* nfs4_op_release_lock_owner */
bool open4_open_owner(struct nfs_argop4 *op, compound_data_t *data, struct nfs_resop4 *res, nfs_client_id_t *clientid, state_owner_t **owner) { /* Shortcut to open args */ OPEN4args * const arg_OPEN4 = &(op->nfs_argop4_u.opopen); /* Shortcut to open args */ OPEN4res * const res_OPEN4 = &(res->nfs_resop4_u.opopen); /* The parsed-out name of the open owner */ state_nfs4_owner_name_t owner_name; /* Indicates if the owner is new */ bool_t isnew; /* Return value of FSAL operations */ fsal_status_t status = {0, 0}; struct fsal_obj_handle *obj_lookup = NULL; /* Is this open_owner known? If so, get it so we can use * replay cache */ convert_nfs4_open_owner(&arg_OPEN4->owner, &owner_name); /* If this open owner is not known yet, allocate and set up a new one */ *owner = create_nfs4_owner(&owner_name, clientid, STATE_OPEN_OWNER_NFSV4, NULL, 0, &isnew, CARE_ALWAYS, data->minorversion != 0); LogStateOwner("Open: ", *owner); if (*owner == NULL) { res_OPEN4->status = NFS4ERR_RESOURCE; LogEvent(COMPONENT_STATE, "NFS4 OPEN returning NFS4ERR_RESOURCE for CLAIM_NULL (could not create NFS4 Owner"); return false; } /* Seqid checking is only proper for reused NFSv4.0 owner */ if (isnew || (data->minorversion != 0)) return true; if (arg_OPEN4->seqid == 0) { LogDebug(COMPONENT_STATE, "Previously known open_owner is used with seqid=0, ask the client to confirm it again"); (*owner)->so_owner.so_nfs4_owner.so_confirmed = false; return true; } /* Check for replay */ if (Check_nfs4_seqid(*owner, arg_OPEN4->seqid, op, data->current_obj, res, open_tag)) { /* No replay */ return true; } /* Response is setup for us and LogDebug told what was * wrong. * * Or if this is a seqid replay, find the file entry * and update currentFH */ if (res_OPEN4->status == NFS4_OK) { utf8string *utfile; open_claim4 *oc = &arg_OPEN4->claim; char *filename; /* Load up CLAIM_DELEGATE_CUR file */ switch (oc->claim) { case CLAIM_NULL: utfile = &oc->open_claim4_u.file; break; case CLAIM_DELEGATE_CUR: utfile = &oc->open_claim4_u.delegate_cur_info.file; break; case CLAIM_DELEGATE_PREV: default: return false; } /* Check if filename is correct */ res_OPEN4->status = nfs4_utf8string2dynamic( utfile, UTF8_SCAN_ALL, &filename); if (res_OPEN4->status != NFS4_OK) return false; status = fsal_lookup(data->current_obj, filename, &obj_lookup, NULL); gsh_free(filename); if (obj_lookup == NULL) { res_OPEN4->status = nfs4_Errno_status(status); return false; } res_OPEN4->status = open4_create_fh(data, obj_lookup, false); } return false; }
int nfs41_op_open(struct nfs_argop4 *op, compound_data_t * data, struct nfs_resop4 *resp) { char __attribute__ ((__unused__)) funcname[] = "nfs4_op_open"; cache_entry_t * pentry_parent = NULL; cache_entry_t * pentry_lookup = NULL; cache_entry_t * pentry_newfile = NULL; fsal_handle_t * pnewfsal_handle = NULL; fsal_attrib_list_t attr_parent; fsal_attrib_list_t attr; fsal_attrib_list_t attr_newfile; fsal_attrib_list_t sattr; fsal_openflags_t openflags = 0; cache_inode_status_t cache_status; state_status_t state_status; nfsstat4 rc; int retval; fsal_name_t filename; bool_t AttrProvided = FALSE; fsal_accessmode_t mode = 0600; nfs_fh4 newfh4; nfs_worker_data_t * pworker = NULL; int convrc = 0; state_data_t candidate_data; state_type_t candidate_type; state_t * pfile_state = NULL; state_t * pstate_found_iterate = NULL; state_t * pstate_previous_iterate = NULL; state_t * pstate_found_same_owner = NULL; state_nfs4_owner_name_t owner_name; state_owner_t * powner = NULL; fsal_accessflags_t write_access = FSAL_MODE_MASK_SET(FSAL_W_OK) | FSAL_ACE4_MASK_SET(FSAL_ACE_PERM_WRITE_DATA | FSAL_ACE_PERM_APPEND_DATA); fsal_accessflags_t read_access = FSAL_MODE_MASK_SET(FSAL_R_OK) | FSAL_ACE4_MASK_SET(FSAL_ACE_PERM_READ_DATA); resp->resop = NFS4_OP_OPEN; res_OPEN4.status = NFS4_OK; uint32_t tmp_attr[2]; uint_t tmp_int = 2; #ifdef _USE_PNFS nfs_client_id_t nfs_clientid; bool_t open_owner_known = FALSE; int pnfs_status; #endif cache_inode_create_arg_t create_arg; pworker = (nfs_worker_data_t *) data->pclient->pworker; /* If there is no FH */ if(nfs4_Is_Fh_Empty(&(data->currentFH))) { res_OPEN4.status = NFS4ERR_NOFILEHANDLE; return res_OPEN4.status; } /* If the filehandle is invalid */ if(nfs4_Is_Fh_Invalid(&(data->currentFH))) { res_OPEN4.status = NFS4ERR_BADHANDLE; return res_OPEN4.status; } /* Tests if the Filehandle is expired (for volatile filehandle) */ if(nfs4_Is_Fh_Expired(&(data->currentFH))) { res_OPEN4.status = NFS4ERR_FHEXPIRED; return res_OPEN4.status; } /* This can't be done on the pseudofs */ if(nfs4_Is_Fh_Pseudo(&(data->currentFH))) { res_OPEN4.status = NFS4ERR_ROFS; return res_OPEN4.status; } /* If Filehandle points to a xattr object, manage it via the xattrs specific functions */ if(nfs4_Is_Fh_Xattr(&(data->currentFH))) return nfs4_op_open_xattr(op, data, resp); /* If data->current_entry is empty, repopulate it */ if(data->current_entry == NULL) { if((data->current_entry = nfs_FhandleToCache(NFS_V4, NULL, NULL, &(data->currentFH), NULL, NULL, &(res_OPEN4.status), &attr, data->pcontext, data->pclient, data->ht, &retval)) == NULL) { res_OPEN4.status = NFS4ERR_SERVERFAULT; return res_OPEN4.status; } } /* Set parent */ pentry_parent = data->current_entry; /* First switch is based upon claim type */ switch (arg_OPEN4.claim.claim) { case CLAIM_DELEGATE_CUR: case CLAIM_DELEGATE_PREV: /* Check for name length */ if(arg_OPEN4.claim.open_claim4_u.file.utf8string_len > FSAL_MAX_NAME_LEN) { res_OPEN4.status = NFS4ERR_NAMETOOLONG; return res_OPEN4.status; } /* get the filename from the argument, it should not be empty */ if(arg_OPEN4.claim.open_claim4_u.file.utf8string_len == 0) { res_OPEN4.status = NFS4ERR_INVAL; return res_OPEN4.status; } res_OPEN4.status = NFS4ERR_NOTSUPP; return res_OPEN4.status; break; case CLAIM_NULL: /* Check for name length */ if(arg_OPEN4.claim.open_claim4_u.file.utf8string_len > FSAL_MAX_NAME_LEN) { res_OPEN4.status = NFS4ERR_NAMETOOLONG; return res_OPEN4.status; } /* get the filename from the argument, it should not be empty */ if(arg_OPEN4.claim.open_claim4_u.file.utf8string_len == 0) { res_OPEN4.status = NFS4ERR_INVAL; return res_OPEN4.status; } /* Check if asked attributes are correct */ if(arg_OPEN4.openhow.openflag4_u.how.mode == GUARDED4 || arg_OPEN4.openhow.openflag4_u.how.mode == UNCHECKED4) { if(!nfs4_Fattr_Supported (&arg_OPEN4.openhow.openflag4_u.how.createhow4_u.createattrs)) { res_OPEN4.status = NFS4ERR_ATTRNOTSUPP; return res_OPEN4.status; } /* Do not use READ attr, use WRITE attr */ if(!nfs4_Fattr_Check_Access (&arg_OPEN4.openhow.openflag4_u.how.createhow4_u.createattrs, FATTR4_ATTR_WRITE)) { res_OPEN4.status = NFS4ERR_INVAL; return res_OPEN4.status; } } /* Check if filename is correct */ if((cache_status = cache_inode_error_convert(FSAL_buffdesc2name ((fsal_buffdesc_t *) & arg_OPEN4.claim.open_claim4_u. file, &filename))) != CACHE_INODE_SUCCESS) { res_OPEN4.status = nfs4_Errno(cache_status); return res_OPEN4.status; } /* Check parent */ pentry_parent = data->current_entry; /* Parent must be a directory */ if((pentry_parent->internal_md.type != DIR_BEGINNING) && (pentry_parent->internal_md.type != DIR_CONTINUE)) { /* Parent object is not a directory... */ if(pentry_parent->internal_md.type == SYMBOLIC_LINK) res_OPEN4.status = NFS4ERR_SYMLINK; else res_OPEN4.status = NFS4ERR_NOTDIR; return res_OPEN4.status; } /* What kind of open is it ? */ LogFullDebug(COMPONENT_NFS_V4, " OPEN: Claim type = %d Open Type = %d Share Deny = %d Share Access = %d ", arg_OPEN4.claim.claim, arg_OPEN4.openhow.opentype, arg_OPEN4.share_deny, arg_OPEN4.share_access); /* It this a known client id ? */ LogDebug(COMPONENT_NFS_V4, "OPEN Client id = %llx", (long long unsigned int)arg_OPEN4.owner.clientid); /* Is this open_owner known ? */ convert_nfs4_owner(&arg_OPEN4.owner, &owner_name); if(!nfs4_owner_Get_Pointer(&owner_name, &powner)) { /* This open owner is not known yet, allocated and set up a new one */ powner = create_nfs4_owner(data->pclient, &owner_name, &arg_OPEN4.owner, NULL, 1); /* NFSv4.1 specific, initial seqid is 1 */ if(powner == NULL) { res_OPEN4.status = NFS4ERR_SERVERFAULT; return res_OPEN4.status; } } /* Status of parent directory before the operation */ if(cache_inode_getattr(pentry_parent, &attr_parent, data->ht, data->pclient, data->pcontext, &cache_status) != CACHE_INODE_SUCCESS) { res_OPEN4.status = nfs4_Errno(cache_status); return res_OPEN4.status; } memset(&(res_OPEN4.OPEN4res_u.resok4.cinfo.before), 0, sizeof(changeid4)); res_OPEN4.OPEN4res_u.resok4.cinfo.before = (changeid4) pentry_parent->internal_md.mod_time; /* CLient may have provided fattr4 to set attributes at creation time */ if(arg_OPEN4.openhow.openflag4_u.how.mode == GUARDED4 || arg_OPEN4.openhow.openflag4_u.how.mode == UNCHECKED4) { if(arg_OPEN4.openhow.openflag4_u.how.createhow4_u.createattrs.attrmask. bitmap4_len != 0) { /* Convert fattr4 so nfs4_sattr */ convrc = nfs4_Fattr_To_FSAL_attr(&sattr, &(arg_OPEN4.openhow.openflag4_u.how. createhow4_u.createattrs)); if(convrc != NFS4_OK) { res_OPEN4.status = convrc; return res_OPEN4.status; } AttrProvided = TRUE; } } /* Second switch is based upon "openhow" */ switch (arg_OPEN4.openhow.opentype) { case OPEN4_CREATE: /* a new file is to be created */ /* Does a file with this name already exist ? */ pentry_lookup = cache_inode_lookup(pentry_parent, &filename, &attr_newfile, data->ht, data->pclient, data->pcontext, &cache_status); if(cache_status != CACHE_INODE_NOT_FOUND) { /* if open is UNCHECKED, return NFS4_OK (RFC3530 page 172) */ if(arg_OPEN4.openhow.openflag4_u.how.mode == UNCHECKED4 && (cache_status == CACHE_INODE_SUCCESS)) { /* If the file is opened for write, OPEN4 while deny share write access, * in this case, check caller has write access to the file */ if(arg_OPEN4.share_deny & OPEN4_SHARE_DENY_WRITE) { if(cache_inode_access(pentry_lookup, write_access, data->ht, data->pclient, data->pcontext, &cache_status) != CACHE_INODE_SUCCESS) { res_OPEN4.status = NFS4ERR_ACCESS; return res_OPEN4.status; } openflags = FSAL_O_WRONLY; } /* Same check on read: check for readability of a file before opening it for read */ if(arg_OPEN4.share_access & OPEN4_SHARE_ACCESS_READ) { if(cache_inode_access(pentry_lookup, read_access, data->ht, data->pclient, data->pcontext, &cache_status) != CACHE_INODE_SUCCESS) { res_OPEN4.status = NFS4ERR_ACCESS; return res_OPEN4.status; } openflags = FSAL_O_RDONLY; } if(AttrProvided == TRUE) /* Set the attribute if provided */ { if(cache_inode_setattr(pentry_lookup, &sattr, data->ht, data->pclient, data->pcontext, &cache_status) != CACHE_INODE_SUCCESS) { res_OPEN4.status = nfs4_Errno(cache_status); return res_OPEN4.status; } res_OPEN4.OPEN4res_u.resok4.attrset = arg_OPEN4.openhow.openflag4_u.how.createhow4_u.createattrs. attrmask; } else res_OPEN4.OPEN4res_u.resok4.attrset.bitmap4_len = 0; /* Same check on write */ if(arg_OPEN4.share_access & OPEN4_SHARE_ACCESS_WRITE) { if(cache_inode_access(pentry_lookup, write_access, data->ht, data->pclient, data->pcontext, &cache_status) != CACHE_INODE_SUCCESS) { res_OPEN4.status = NFS4ERR_ACCESS; return res_OPEN4.status; } openflags = FSAL_O_RDWR; } /* Set the state for the related file */ /* Prepare state management structure */ candidate_type = STATE_TYPE_SHARE; candidate_data.share.share_deny = arg_OPEN4.share_deny; candidate_data.share.share_access = arg_OPEN4.share_access; if(state_add(pentry_lookup, candidate_type, &candidate_data, powner, data->pclient, data->pcontext, &pfile_state, &state_status) != STATE_SUCCESS) { /* Seqid has to be incremented even in this case */ P(powner->so_mutex); powner->so_owner.so_nfs4_owner.so_seqid += 1; V(powner->so_mutex); res_OPEN4.status = NFS4ERR_SHARE_DENIED; return res_OPEN4.status; } /* Open the file */ if(cache_inode_open_by_name(pentry_parent, &filename, pentry_lookup, data->pclient, openflags, data->pcontext, &cache_status) != CACHE_INODE_SUCCESS) { /* Seqid has to be incremented even in this case */ P(powner->so_mutex); powner->so_owner.so_nfs4_owner.so_seqid += 1; V(powner->so_mutex); res_OPEN4.status = NFS4ERR_SHARE_DENIED; res_OPEN4.status = NFS4ERR_ACCESS; return res_OPEN4.status; } res_OPEN4.OPEN4res_u.resok4.attrset.bitmap4_len = 2; if((res_OPEN4.OPEN4res_u.resok4.attrset.bitmap4_val = (uint32_t *) Mem_Alloc(res_OPEN4.OPEN4res_u.resok4.attrset. bitmap4_len * sizeof(uint32_t))) == NULL) { res_OPEN4.status = NFS4ERR_SERVERFAULT; return res_OPEN4.status; } memset(&(res_OPEN4.OPEN4res_u.resok4.cinfo.after), 0, sizeof(changeid4)); res_OPEN4.OPEN4res_u.resok4.cinfo.after = (changeid4) pentry_parent->internal_md.mod_time; res_OPEN4.OPEN4res_u.resok4.cinfo.atomic = TRUE; res_OPEN4.OPEN4res_u.resok4.stateid.seqid = pfile_state->state_seqid; memcpy(res_OPEN4.OPEN4res_u.resok4.stateid.other, pfile_state->stateid_other, OTHERSIZE); /* No delegation */ res_OPEN4.OPEN4res_u.resok4.delegation.delegation_type = OPEN_DELEGATE_NONE; res_OPEN4.OPEN4res_u.resok4.rflags = OPEN4_RESULT_LOCKTYPE_POSIX; /* Now produce the filehandle to this file */ if((pnewfsal_handle = cache_inode_get_fsal_handle(pentry_lookup, &cache_status)) == NULL) { res_OPEN4.status = nfs4_Errno(cache_status); return res_OPEN4.status; } /* Allocation of a new file handle */ if((rc = nfs4_AllocateFH(&newfh4)) != NFS4_OK) { res_OPEN4.status = rc; return res_OPEN4.status; } /* Building a new fh */ if(!nfs4_FSALToFhandle(&newfh4, pnewfsal_handle, data)) { res_OPEN4.status = NFS4ERR_SERVERFAULT; return res_OPEN4.status; } /* This new fh replaces the current FH */ data->currentFH.nfs_fh4_len = newfh4.nfs_fh4_len; memcpy(data->currentFH.nfs_fh4_val, newfh4.nfs_fh4_val, newfh4.nfs_fh4_len); data->current_entry = pentry_lookup; data->current_filetype = REGULAR_FILE; res_OPEN4.status = NFS4_OK; return res_OPEN4.status; } /* if open is EXCLUSIVE, but verifier is the same, return NFS4_OK (RFC3530 page 173) */ if(arg_OPEN4.openhow.openflag4_u.how.mode == EXCLUSIVE4) { if((pentry_lookup != NULL) && (pentry_lookup->internal_md.type == REGULAR_FILE)) { pstate_found_iterate = NULL; pstate_previous_iterate = NULL; do { state_iterate(pentry_lookup, &pstate_found_iterate, pstate_previous_iterate, data->pclient, data->pcontext, &state_status); if(state_status == STATE_STATE_ERROR) break; if(state_status == STATE_INVALID_ARGUMENT) { /* Seqid has to be incremented even in this case */ P(powner->so_mutex); powner->so_owner.so_nfs4_owner.so_seqid += 1; V(powner->so_mutex); res_OPEN4.status = NFS4ERR_INVAL; return res_OPEN4.status; } cache_status = CACHE_INODE_SUCCESS; /* Check is open_owner is the same */ if(pstate_found_iterate != NULL) { if((pstate_found_iterate->state_type == STATE_TYPE_SHARE) && !memcmp(arg_OPEN4.owner.owner.owner_val, pstate_found_iterate->state_powner->so_owner_val, pstate_found_iterate->state_powner->so_owner_len) && !memcmp(pstate_found_iterate->state_data.share. oexcl_verifier, arg_OPEN4.openhow.openflag4_u.how. createhow4_u.createverf, NFS4_VERIFIER_SIZE)) { /* A former open EXCLUSIVE with same owner and verifier was found, resend it */ res_OPEN4.OPEN4res_u.resok4.stateid.seqid = pstate_found_iterate->state_seqid; memcpy(res_OPEN4.OPEN4res_u.resok4.stateid.other, pstate_found_iterate->stateid_other, OTHERSIZE); memset(&(res_OPEN4.OPEN4res_u.resok4.cinfo.after), 0, sizeof(changeid4)); res_OPEN4.OPEN4res_u.resok4.cinfo.after = (changeid4) pentry_parent->internal_md.mod_time; res_OPEN4.OPEN4res_u.resok4.cinfo.atomic = TRUE; /* No delegation */ res_OPEN4.OPEN4res_u.resok4.delegation.delegation_type = OPEN_DELEGATE_NONE; res_OPEN4.OPEN4res_u.resok4.rflags = OPEN4_RESULT_LOCKTYPE_POSIX; /* Now produce the filehandle to this file */ if((pnewfsal_handle = cache_inode_get_fsal_handle(pentry_lookup, &cache_status)) == NULL) { res_OPEN4.status = nfs4_Errno(cache_status); return res_OPEN4.status; } /* Allocation of a new file handle */ if((rc = nfs4_AllocateFH(&newfh4)) != NFS4_OK) { res_OPEN4.status = rc; return res_OPEN4.status; } /* Building a new fh */ if(!nfs4_FSALToFhandle(&newfh4, pnewfsal_handle, data)) { res_OPEN4.status = NFS4ERR_SERVERFAULT; return res_OPEN4.status; } /* This new fh replaces the current FH */ data->currentFH.nfs_fh4_len = newfh4.nfs_fh4_len; memcpy(data->currentFH.nfs_fh4_val, newfh4.nfs_fh4_val, newfh4.nfs_fh4_len); data->current_entry = pentry_lookup; data->current_filetype = REGULAR_FILE; /* regular exit */ res_OPEN4.status = NFS4_OK; return res_OPEN4.status; } } /* if( pstate_found_iterate != NULL ) */ pstate_previous_iterate = pstate_found_iterate; } while(pstate_found_iterate != NULL); } } /* Managing GUARDED4 mode */ if(cache_status != CACHE_INODE_SUCCESS) res_OPEN4.status = nfs4_Errno(cache_status); else res_OPEN4.status = NFS4ERR_EXIST; /* File already exists */ return res_OPEN4.status; } /* if( cache_status != CACHE_INODE_NOT_FOUND ), if file already exists basically */ LogFullDebug(COMPONENT_NFS_V4, " OPEN open.how = %d", arg_OPEN4.openhow.openflag4_u.how.mode); create_arg.use_pnfs = FALSE; #ifdef _USE_PNFS /* set the file has "managed via pNFS" */ if(data->pexport->options & EXPORT_OPTION_USE_PNFS) create_arg.use_pnfs = TRUE; #endif /* _USE_PNFS */ /* Create the file, if we reach this point, it does not exist, we can create it */ if((pentry_newfile = cache_inode_create(pentry_parent, &filename, REGULAR_FILE, mode, &create_arg, &attr_newfile, data->ht, data->pclient, data->pcontext, &cache_status)) == NULL) { /* If the file already exists, this is not an error if open mode is UNCHECKED */ if(cache_status != CACHE_INODE_ENTRY_EXISTS) { res_OPEN4.status = nfs4_Errno(cache_status); return res_OPEN4.status; } else { /* If this point is reached, then the file already exists, cache_status == CACHE_INODE_ENTRY_EXISTS and pentry_newfile == NULL This probably means EXCLUSIVE4 mode is used and verifier matches. pentry_newfile is then set to pentry_lookup */ pentry_newfile = pentry_lookup; } } /* Prepare state management structure */ candidate_type = STATE_TYPE_SHARE; candidate_data.share.share_deny = arg_OPEN4.share_deny; candidate_data.share.share_access = arg_OPEN4.share_access; candidate_data.share.lockheld = 0; /* If file is opened under mode EXCLUSIVE4, open verifier should be kept to detect non vicious double open */ if(arg_OPEN4.openhow.openflag4_u.how.mode == EXCLUSIVE4) { strncpy(candidate_data.share.oexcl_verifier, arg_OPEN4.openhow.openflag4_u.how.createhow4_u.createverf, NFS4_VERIFIER_SIZE); } if(state_add(pentry_newfile, candidate_type, &candidate_data, powner, data->pclient, data->pcontext, &pfile_state, &state_status) != STATE_SUCCESS) { /* Seqid has to be incremented even in this case */ P(powner->so_mutex); powner->so_owner.so_nfs4_owner.so_seqid += 1; V(powner->so_mutex); res_OPEN4.status = NFS4ERR_SHARE_DENIED; return res_OPEN4.status; } cache_status = CACHE_INODE_SUCCESS; if(AttrProvided == TRUE) /* Set the attribute if provided */ { if((cache_status = cache_inode_setattr(pentry_newfile, &sattr, data->ht, data->pclient, data->pcontext, &cache_status)) != CACHE_INODE_SUCCESS) { res_OPEN4.status = nfs4_Errno(cache_status); return res_OPEN4.status; } } /* Set the openflags variable */ if(arg_OPEN4.share_deny & OPEN4_SHARE_DENY_WRITE) openflags |= FSAL_O_RDONLY; if(arg_OPEN4.share_deny & OPEN4_SHARE_DENY_READ) openflags |= FSAL_O_WRONLY; if(arg_OPEN4.share_access & OPEN4_SHARE_ACCESS_WRITE) openflags = FSAL_O_RDWR; if(arg_OPEN4.share_access != 0) openflags = FSAL_O_RDWR; /* @todo : BUGAZOMEU : Something better later */ /* Open the file */ if(cache_inode_open_by_name(pentry_parent, &filename, pentry_newfile, data->pclient, openflags, data->pcontext, &cache_status) != CACHE_INODE_SUCCESS) { /* Seqid has to be incremented even in this case */ P(powner->so_mutex); powner->so_owner.so_nfs4_owner.so_seqid += 1; V(powner->so_mutex); res_OPEN4.status = NFS4ERR_ACCESS; return res_OPEN4.status; } break; case OPEN4_NOCREATE: /* It was not a creation, but a regular open */ /* The filehandle to the new file replaces the current filehandle */ if(pentry_newfile == NULL) { if((pentry_newfile = cache_inode_lookup(pentry_parent, &filename, &attr_newfile, data->ht, data->pclient, data->pcontext, &cache_status)) == NULL) { res_OPEN4.status = nfs4_Errno(cache_status); return res_OPEN4.status; } } /* OPEN4 is to be done on a file */ if(pentry_newfile->internal_md.type != REGULAR_FILE) { if(pentry_newfile->internal_md.type == DIR_BEGINNING || pentry_newfile->internal_md.type == DIR_CONTINUE) { res_OPEN4.status = NFS4ERR_ISDIR; return res_OPEN4.status; } else if(pentry_newfile->internal_md.type == SYMBOLIC_LINK) { res_OPEN4.status = NFS4ERR_SYMLINK; return res_OPEN4.status; } else { res_OPEN4.status = NFS4ERR_INVAL; return res_OPEN4.status; } } /* If the file is opened for write, OPEN4 while deny share write access, * in this case, check caller has write access to the file */ if(arg_OPEN4.share_deny & OPEN4_SHARE_DENY_WRITE) { if(cache_inode_access(pentry_newfile, write_access, data->ht, data->pclient, data->pcontext, &cache_status) != CACHE_INODE_SUCCESS) { res_OPEN4.status = NFS4ERR_ACCESS; return res_OPEN4.status; } openflags = FSAL_O_WRONLY; } /* Same check on read: check for readability of a file before opening it for read */ if(arg_OPEN4.share_access & OPEN4_SHARE_ACCESS_READ) { if(cache_inode_access(pentry_newfile, read_access, data->ht, data->pclient, data->pcontext, &cache_status) != CACHE_INODE_SUCCESS) { res_OPEN4.status = NFS4ERR_ACCESS; return res_OPEN4.status; } openflags = FSAL_O_RDONLY; } /* Same check on write */ if(arg_OPEN4.share_access & OPEN4_SHARE_ACCESS_WRITE) { if(cache_inode_access(pentry_newfile, write_access, data->ht, data->pclient, data->pcontext, &cache_status) != CACHE_INODE_SUCCESS) { res_OPEN4.status = NFS4ERR_ACCESS; return res_OPEN4.status; } openflags = FSAL_O_RDWR; } /* Try to find if the same open_owner already has acquired a stateid for this file */ pstate_found_iterate = NULL; pstate_previous_iterate = NULL; do { state_iterate(pentry_newfile, &pstate_found_iterate, pstate_previous_iterate, data->pclient, data->pcontext, &state_status); if(state_status == STATE_STATE_ERROR) break; /* Get out of the loop */ if(state_status == STATE_INVALID_ARGUMENT) { res_OPEN4.status = NFS4ERR_INVAL; return res_OPEN4.status; } cache_status = CACHE_INODE_SUCCESS; /* Check is open_owner is the same */ if(pstate_found_iterate != NULL) { if((pstate_found_iterate->state_type == STATE_TYPE_SHARE) && (pstate_found_iterate->state_powner->so_owner.so_nfs4_owner.so_clientid == arg_OPEN4.owner.clientid) && ((pstate_found_iterate->state_powner->so_owner_len == arg_OPEN4.owner.owner.owner_len) && (!memcmp (arg_OPEN4.owner.owner.owner_val, pstate_found_iterate->state_powner->so_owner_val, pstate_found_iterate->state_powner->so_owner_len)))) { /* We'll be re-using the found state */ pstate_found_same_owner = pstate_found_iterate; } else { /* This is a different owner, check for possible conflicts */ if(memcmp(arg_OPEN4.owner.owner.owner_val, pstate_found_iterate->state_powner->so_owner_val, pstate_found_iterate->state_powner->so_owner_len)) { if(pstate_found_iterate->state_type == STATE_TYPE_SHARE) { if((pstate_found_iterate->state_data.share. share_access & OPEN4_SHARE_ACCESS_WRITE) && (arg_OPEN4.share_deny & OPEN4_SHARE_DENY_WRITE)) { res_OPEN4.status = NFS4ERR_SHARE_DENIED; return res_OPEN4.status; } } } } /* In all cases opening in read access a read denied file or write access to a write denied file * should fail, even if the owner is the same, see discussion in 14.2.16 and 8.9 */ if(pstate_found_iterate->state_type == STATE_TYPE_SHARE) { /* deny read access on read denied file */ if((pstate_found_iterate->state_data.share. share_deny & OPEN4_SHARE_DENY_READ) && (arg_OPEN4.share_access & OPEN4_SHARE_ACCESS_READ)) { /* Seqid has to be incremented even in this case */ P(powner->so_mutex); powner->so_owner.so_nfs4_owner.so_seqid += 1; V(powner->so_mutex); powner->so_owner.so_nfs4_owner.so_seqid += 1; res_OPEN4.status = NFS4ERR_SHARE_DENIED; return res_OPEN4.status; } /* deny write access on write denied file */ if((pstate_found_iterate->state_data.share. share_deny & OPEN4_SHARE_DENY_WRITE) && (arg_OPEN4.share_access & OPEN4_SHARE_ACCESS_WRITE)) { /* Seqid has to be incremented even in this case */ P(powner->so_mutex); powner->so_owner.so_nfs4_owner.so_seqid += 1; V(powner->so_mutex); res_OPEN4.status = NFS4ERR_SHARE_DENIED; return res_OPEN4.status; } } } /* if( pstate_found_iterate != NULL ) */ pstate_previous_iterate = pstate_found_iterate; } while(pstate_found_iterate != NULL); if(pstate_found_same_owner != NULL) { pfile_state = pstate_found_same_owner; pfile_state->state_seqid += 1; P(powner->so_mutex); powner->so_owner.so_nfs4_owner.so_seqid += 1; V(powner->so_mutex); } else { /* Set the state for the related file */ /* Prepare state management structure */ candidate_type = STATE_TYPE_SHARE; candidate_data.share.share_deny = arg_OPEN4.share_deny; candidate_data.share.share_access = arg_OPEN4.share_access; if(state_add(pentry_newfile, candidate_type, &candidate_data, powner, data->pclient, data->pcontext, &pfile_state, &state_status) != STATE_SUCCESS) { /* Seqid has to be incremented even in this case */ P(powner->so_mutex); powner->so_owner.so_nfs4_owner.so_seqid += 1; V(powner->so_mutex); res_OPEN4.status = NFS4ERR_SHARE_DENIED; return res_OPEN4.status; } } /* Open the file */ if(cache_inode_open_by_name(pentry_parent, &filename, pentry_newfile, data->pclient, openflags, data->pcontext, &cache_status) != CACHE_INODE_SUCCESS) { /* Seqid has to be incremented even in this case */ P(powner->so_mutex); powner->so_owner.so_nfs4_owner.so_seqid += 1; V(powner->so_mutex); res_OPEN4.status = NFS4ERR_ACCESS; return res_OPEN4.status; } break; default: /* Seqid has to be incremented even in this case */ if(powner != NULL) { P(powner->so_mutex); powner->so_owner.so_nfs4_owner.so_seqid += 1; V(powner->so_mutex); } res_OPEN4.status = NFS4ERR_INVAL; return res_OPEN4.status; break; } /* switch( arg_OPEN4.openhow.opentype ) */ break; case CLAIM_PREVIOUS: break; default: /* Seqid has to be incremented even in this case */ if(powner != NULL) { P(powner->so_mutex); powner->so_owner.so_nfs4_owner.so_seqid += 1; V(powner->so_mutex); } res_OPEN4.status = NFS4ERR_INVAL; return res_OPEN4.status; break; } /* switch( arg_OPEN4.claim.claim ) */ /* Now produce the filehandle to this file */ if((pnewfsal_handle = cache_inode_get_fsal_handle(pentry_newfile, &cache_status)) == NULL) { res_OPEN4.status = nfs4_Errno(cache_status); return res_OPEN4.status; } /* Allocation of a new file handle */ if((rc = nfs4_AllocateFH(&newfh4)) != NFS4_OK) { res_OPEN4.status = rc; return res_OPEN4.status; } /* Building a new fh */ if(!nfs4_FSALToFhandle(&newfh4, pnewfsal_handle, data)) { res_OPEN4.status = NFS4ERR_SERVERFAULT; return res_OPEN4.status; } /* This new fh replaces the current FH */ data->currentFH.nfs_fh4_len = newfh4.nfs_fh4_len; memcpy(data->currentFH.nfs_fh4_val, newfh4.nfs_fh4_val, newfh4.nfs_fh4_len); data->current_entry = pentry_newfile; data->current_filetype = REGULAR_FILE; /* No do not need newfh any more */ Mem_Free((char *)newfh4.nfs_fh4_val); /* Status of parent directory after the operation */ if((cache_status = cache_inode_getattr(pentry_parent, &attr_parent, data->ht, data->pclient, data->pcontext, &cache_status)) != CACHE_INODE_SUCCESS) { res_OPEN4.status = nfs4_Errno(cache_status); return res_OPEN4.status; } res_OPEN4.OPEN4res_u.resok4.attrset.bitmap4_len = 2; if((res_OPEN4.OPEN4res_u.resok4.attrset.bitmap4_val = (uint32_t *) Mem_Alloc(res_OPEN4.OPEN4res_u.resok4.attrset.bitmap4_len * sizeof(uint32_t))) == NULL) { res_OPEN4.status = NFS4ERR_SERVERFAULT; return res_OPEN4.status; } res_OPEN4.OPEN4res_u.resok4.attrset.bitmap4_val[0] = 0; /* No Attributes set */ res_OPEN4.OPEN4res_u.resok4.attrset.bitmap4_val[1] = 0; /* No Attributes set */ if(arg_OPEN4.openhow.opentype == OPEN4_CREATE) { tmp_int = 2; tmp_attr[0] = FATTR4_SIZE; tmp_attr[1] = FATTR4_MODE; nfs4_list_to_bitmap4(&(res_OPEN4.OPEN4res_u.resok4.attrset), &tmp_int, tmp_attr); res_OPEN4.OPEN4res_u.resok4.attrset.bitmap4_len = 2; } res_OPEN4.OPEN4res_u.resok4.cinfo.after = (changeid4) pentry_parent->internal_md.mod_time; res_OPEN4.OPEN4res_u.resok4.cinfo.atomic = TRUE; res_OPEN4.OPEN4res_u.resok4.stateid.seqid = powner->so_owner.so_nfs4_owner.so_seqid; memcpy(res_OPEN4.OPEN4res_u.resok4.stateid.other, pfile_state->stateid_other, OTHERSIZE); /* No delegation */ res_OPEN4.OPEN4res_u.resok4.delegation.delegation_type = OPEN_DELEGATE_NONE; res_OPEN4.OPEN4res_u.resok4.rflags = OPEN4_RESULT_LOCKTYPE_POSIX; /* regular exit */ res_OPEN4.status = NFS4_OK; return res_OPEN4.status; } /* nfs41_op_open */