269 lines
7.1 KiB
C
269 lines
7.1 KiB
C
/*
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dsread.c
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Copyright (C) 2000 Petr Vandrovec
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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Revision history:
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1.00 2000, April 30 Petr Vandrovec <vandrove@vc.cvut.cz>
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Initial version, copied from nwnet.c
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Added NWDSListAttrsEffectiveRights.
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Added NWDSExtSyncRead.
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1.01 2000, August 25 Petr Vandrovec <vandrove@vc.cvut.cz>
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Removed DS_RESOLVE_WALK_TREE from resolve calls.
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*/
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#include <ncp/nwcalls.h>
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#include "nwnet_i.h"
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NWDSCCODE __NWDSReadV1(
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NWCONN_HANDLE conn,
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nuint32 qflags,
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NWObjectID objectID,
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nuint infoType,
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nuint allAttrs,
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Buf_T* attrNames,
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nuint32* iterhandle,
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Buf_T* subjectName,
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Buf_T* objectInfo) {
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NWDSCCODE err;
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NW_FRAGMENT rq_frag[3];
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NW_FRAGMENT rp_frag[2];
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unsigned char rq_b[28];
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unsigned char rp_b[8];
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size_t rq_frags;
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DSET_LH(rq_b, 0, 1); /* version */
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DSET_LH(rq_b, 4, qflags); /* ctxflag, to do: 1,4,8 */
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DSET_LH(rq_b, 8, *iterhandle); /* iterhandle */
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DSET_HL(rq_b, 12, objectID);
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DSET_LH(rq_b, 16, infoType);
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DSET_LH(rq_b, 20, allAttrs);
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rq_frag[0].fragAddr.ro = rq_b;
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if (!allAttrs && attrNames) {
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rq_frag[0].fragSize = 24;
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rq_frag[1].fragAddr.ro = NWDSBufRetrieve(attrNames, &rq_frag[1].fragSize);
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rq_frags = 2;
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} else {
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DSET_LH(rq_b, 24, 0);
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rq_frag[0].fragSize = 28;
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rq_frags = 1;
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}
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if (subjectName) {
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rq_frag[rq_frags].fragAddr.ro = NWDSBufRetrieve(subjectName, &rq_frag[rq_frags].fragSize);
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rq_frags++;
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}
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NWDSBufStartPut(objectInfo, DSV_READ);
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err = NWDSBufSetInfoType(objectInfo, infoType);
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if (err)
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return err;
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rp_frag[0].fragAddr.rw = rp_b;
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rp_frag[0].fragSize = 8;
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rp_frag[1].fragAddr.rw = NWDSBufPutPtrLen(objectInfo, &rp_frag[1].fragSize);
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err = NWCFragmentRequest(conn, DSV_READ, rq_frags, rq_frag, 2, rp_frag, NULL);
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if (err)
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return err;
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if (rp_frag[0].fragSize < 8)
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return ERR_INVALID_SERVER_RESPONSE;
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NWDSBufPutSkip(objectInfo, rp_frag[1].fragSize);
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NWDSBufFinishPut(objectInfo);
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*iterhandle = DVAL_LH(rp_b, 0);
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if (DVAL_LH(rp_b, 4) != infoType)
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return ERR_INVALID_SERVER_RESPONSE;
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return 0;
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}
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static NWDSCCODE __NWDSReadV2(
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NWCONN_HANDLE conn,
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nuint32 qflags,
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NWObjectID objectID,
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nuint infoType,
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nuint allAttrs,
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Buf_T* attrNames,
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nuint32* iterhandle,
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Buf_T* subjectName,
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const TimeStamp_T* timeStamp,
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Buf_T* objectInfo) {
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NWDSCCODE err;
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NW_FRAGMENT rq_frag[4];
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NW_FRAGMENT rp_frag[2];
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nuint8 rq_b[28];
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nuint8 rq_b2[8];
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nuint8 rp_b[8];
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size_t rq_frags;
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DSET_LH(rq_b, 0, 2); /* version */
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DSET_LH(rq_b, 4, qflags); /* ctxflag, to do: 1,4,8 */
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DSET_LH(rq_b, 8, *iterhandle); /* iterhandle */
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DSET_HL(rq_b, 12, objectID);
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DSET_LH(rq_b, 16, infoType);
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DSET_LH(rq_b, 20, allAttrs);
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DSET_LH(rq_b2, 0, timeStamp->wholeSeconds);
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WSET_LH(rq_b2, 4, timeStamp->replicaNum);
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WSET_LH(rq_b2, 6, timeStamp->eventID);
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rq_frag[0].fragAddr.ro = rq_b;
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if (!allAttrs && attrNames) {
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rq_frag[0].fragSize = 24;
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rq_frag[1].fragAddr.ro = NWDSBufRetrieve(attrNames, &rq_frag[1].fragSize);
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rq_frags = 2;
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} else {
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DSET_LH(rq_b, 24, 0);
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rq_frag[0].fragSize = 28;
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rq_frags = 1;
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}
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if (subjectName) {
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rq_frag[rq_frags].fragAddr.ro = NWDSBufRetrieve(subjectName, &rq_frag[rq_frags].fragSize);
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rq_frags++;
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}
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rq_frag[rq_frags].fragAddr.ro = rq_b2;
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rq_frag[rq_frags].fragSize = 8;
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rq_frags++;
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NWDSBufStartPut(objectInfo, DSV_READ);
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err = NWDSBufSetInfoType(objectInfo, infoType);
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if (err)
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return err;
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rp_frag[0].fragAddr.rw = rp_b;
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rp_frag[0].fragSize = 8;
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rp_frag[1].fragAddr.rw = NWDSBufPutPtrLen(objectInfo, &rp_frag[1].fragSize);
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err = NWCFragmentRequest(conn, DSV_READ, rq_frags, rq_frag, 2, rp_frag, NULL);
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if (err)
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return err;
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if (rp_frag[0].fragSize < 8)
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return ERR_INVALID_SERVER_RESPONSE;
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NWDSBufPutSkip(objectInfo, rp_frag[1].fragSize);
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NWDSBufFinishPut(objectInfo);
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*iterhandle = DVAL_LH(rp_b, 0);
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if (DVAL_LH(rp_b, 4) != infoType)
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return ERR_INVALID_SERVER_RESPONSE;
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return 0;
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}
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static NWDSCCODE __NWDSRead(
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NWDSContextHandle ctx,
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const NWDSChar* objectName,
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nuint infoType,
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nuint allAttrs,
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Buf_T* attrNames,
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nuint32* iterHandle,
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Buf_T* subjectName,
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const TimeStamp_T* timeStamp,
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Buf_T* objectInfo) {
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NWDSCCODE err;
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nuint32 ctxflags;
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nuint32 qflags = 0;
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struct wrappedIterationHandle* ih = NULL;
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NWCONN_HANDLE conn;
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NWObjectID objID;
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nuint32 lh;
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if (attrNames && attrNames->operation != DSV_READ)
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return ERR_BAD_VERB;
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err = NWDSGetContext(ctx, DCK_FLAGS, &ctxflags);
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if (err)
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return err;
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if (ctxflags & DCV_TYPELESS_NAMES)
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qflags |= 0x0001;
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qflags |= ctx->dck.name_form << 1;
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if (*iterHandle == NO_MORE_ITERATIONS) {
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err = NWDSResolveName2(ctx, objectName, DS_RESOLVE_READABLE,
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&conn, &objID);
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if (err)
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return err;
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lh = NO_MORE_ITERATIONS;
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} else {
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ih = __NWDSIHLookup(*iterHandle, DSV_READ);
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if (!ih)
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return ERR_INVALID_HANDLE;
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lh = ih->iterHandle;
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objID = ih->objectID;
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conn = ih->conn;
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}
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if (timeStamp)
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err = __NWDSReadV2(conn, qflags, objID, infoType, allAttrs,
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attrNames, &lh, subjectName, timeStamp,
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objectInfo);
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else
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err = __NWDSReadV1(conn, qflags, objID, infoType, allAttrs,
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attrNames, &lh, subjectName, objectInfo);
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if (ih) {
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return __NWDSIHUpdate(ih, err, lh, iterHandle);
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}
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return __NWDSIHCreate(err, conn, objID, lh, DSV_READ, iterHandle);
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}
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NWDSCCODE NWDSExtSyncRead(
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NWDSContextHandle ctx,
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const NWDSChar* objectName,
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nuint infoType,
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nuint allAttrs,
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Buf_T* attrNames,
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nuint32* iterHandle,
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const TimeStamp_T* timeStamp,
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Buf_T* objectInfo
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) {
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if (infoType == DS_EFFECTIVE_PRIVILEGES)
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return ERR_INVALID_REQUEST;
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return __NWDSRead(ctx, objectName, infoType, allAttrs, attrNames,
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iterHandle, NULL, timeStamp, objectInfo);
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}
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NWDSCCODE NWDSRead(
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NWDSContextHandle ctx,
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const NWDSChar* objectName,
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nuint infoType,
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nuint allAttrs,
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Buf_T* attrNames,
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nuint32* iterHandle,
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Buf_T* objectInfo
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) {
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return NWDSExtSyncRead(ctx, objectName, infoType, allAttrs, attrNames,
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iterHandle, NULL, objectInfo);
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}
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NWDSCCODE NWDSListAttrsEffectiveRights(
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NWDSContextHandle ctx,
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const NWDSChar* objectName,
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const NWDSChar* subjectName,
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nuint allAttrs,
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Buf_T* attrNames,
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nuint32* iterHandle,
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Buf_T* privilegeInfo
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) {
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Buf_T buf;
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nuint8 spare[4 + MAX_DN_BYTES];
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NWDSCCODE dserr;
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if (!subjectName)
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return ERR_NULL_POINTER;
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NWDSSetupBuf(&buf, spare, sizeof(spare));
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dserr = NWDSCtxBufDN(ctx, &buf, subjectName);
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if (dserr)
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return dserr;
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return __NWDSRead(ctx, objectName, DS_EFFECTIVE_PRIVILEGES,
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allAttrs, attrNames, iterHandle, &buf, NULL,
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privilegeInfo);
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}
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