+++ /dev/null
-/*
- * Unix SMB/Netbios implementation.
- * Version 1.9.
- * RPC Pipe client / server routines
- * Copyright (C) Andrew Tridgell 1992-1998,
- * Copyright (C) Jeremy R. Allison 1995-2005.
- * Copyright (C) Luke Kenneth Casson Leighton 1996-1998,
- * Copyright (C) Paul Ashton 1997-1998.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, see <http://www.gnu.org/licenses/>.
- */
-
-#include "includes.h"
-
-#undef DBGC_CLASS
-#define DBGC_CLASS DBGC_RPC_PARSE
-
-/*******************************************************************
- Reads or writes a SEC_ACE structure.
-********************************************************************/
-
-static bool sec_io_ace(const char *desc, SEC_ACE *psa, prs_struct *ps,
- int depth)
-{
- uint32 old_offset;
- uint32 offset_ace_size;
- uint8 type;
-
- if (psa == NULL)
- return False;
-
- prs_debug(ps, depth, desc, "sec_io_ace");
- depth++;
-
- old_offset = prs_offset(ps);
-
- if (MARSHALLING(ps)) {
- type = (uint8)psa->type;
- }
-
- if(!prs_uint8("type ", ps, depth, &type))
- return False;
-
- if (UNMARSHALLING(ps)) {
- psa->type = (enum security_ace_type)type;
- }
-
- if(!prs_uint8("flags", ps, depth, &psa->flags))
- return False;
-
- if(!prs_uint16_pre("size ", ps, depth, &psa->size, &offset_ace_size))
- return False;
-
- if(!prs_uint32("access_mask", ps, depth, &psa->access_mask))
- return False;
-
- /* check whether object access is present */
- if (!sec_ace_object(psa->type)) {
- if (!smb_io_dom_sid("trustee ", &psa->trustee , ps, depth))
- return False;
- } else {
- if (!prs_uint32("obj_flags", ps, depth, &psa->object.object.flags))
- return False;
-
- if (psa->object.object.flags & SEC_ACE_OBJECT_TYPE_PRESENT)
- if (!smb_io_uuid("obj_guid", &psa->object.object.type.type, ps,depth))
- return False;
-
- if (psa->object.object.flags & SEC_ACE_INHERITED_OBJECT_TYPE_PRESENT)
- if (!smb_io_uuid("inh_guid", &psa->object.object.inherited_type.inherited_type, ps,depth))
- return False;
-
- if(!smb_io_dom_sid("trustee ", &psa->trustee , ps, depth))
- return False;
- }
-
- /* Theorectically an ACE can have a size greater than the
- sum of its components. When marshalling, pad with extra null bytes up to the
- correct size. */
-
- if (MARSHALLING(ps) && (psa->size > prs_offset(ps) - old_offset)) {
- uint32 extra_len = psa->size - (prs_offset(ps) - old_offset);
- uint32 i;
- uint8 c = 0;
-
- for (i = 0; i < extra_len; i++) {
- if (!prs_uint8("ace extra space", ps, depth, &c))
- return False;
- }
- }
-
- if(!prs_uint16_post("size ", ps, depth, &psa->size, offset_ace_size, old_offset))
- return False;
-
- return True;
-}
-
-/*******************************************************************
- Reads or writes a SEC_ACL structure.
-
- First of the xx_io_xx functions that allocates its data structures
- for you as it reads them.
-********************************************************************/
-
-static bool sec_io_acl(const char *desc, SEC_ACL **ppsa, prs_struct *ps,
- int depth)
-{
- unsigned int i;
- uint32 old_offset;
- uint32 offset_acl_size;
- SEC_ACL *psa;
- uint16 revision;
-
- /*
- * Note that the size is always a multiple of 4 bytes due to the
- * nature of the data structure. Therefore the prs_align() calls
- * have been removed as they through us off when doing two-layer
- * marshalling such as in the printing code (RPC_BUFFER). --jerry
- */
-
- if (ppsa == NULL)
- return False;
-
- psa = *ppsa;
-
- if(UNMARSHALLING(ps) && psa == NULL) {
- /*
- * This is a read and we must allocate the stuct to read into.
- */
- if((psa = PRS_ALLOC_MEM(ps, SEC_ACL, 1)) == NULL)
- return False;
- *ppsa = psa;
- }
-
- prs_debug(ps, depth, desc, "sec_io_acl");
- depth++;
-
- old_offset = prs_offset(ps);
-
- if (MARSHALLING(ps)) {
- revision = (uint16)psa->revision;
- }
-
- if(!prs_uint16("revision", ps, depth, &revision))
- return False;
-
- if (UNMARSHALLING(ps)) {
- psa->revision = (enum security_acl_revision)revision;
- }
-
- if(!prs_uint16_pre("size ", ps, depth, &psa->size, &offset_acl_size))
- return False;
-
- if(!prs_uint32("num_aces ", ps, depth, &psa->num_aces))
- return False;
-
- if (UNMARSHALLING(ps)) {
- if (psa->num_aces) {
- if((psa->aces = PRS_ALLOC_MEM(ps, SEC_ACE, psa->num_aces)) == NULL)
- return False;
- } else {
- psa->aces = NULL;
- }
- }
-
- for (i = 0; i < psa->num_aces; i++) {
- fstring tmp;
- slprintf(tmp, sizeof(tmp)-1, "ace_list[%02d]: ", i);
- if(!sec_io_ace(tmp, &psa->aces[i], ps, depth))
- return False;
- }
-
- /* Theorectically an ACL can have a size greater than the
- sum of its components. When marshalling, pad with extra null bytes up to the
- correct size. */
-
- if (MARSHALLING(ps) && (psa->size > prs_offset(ps) - old_offset)) {
- uint32 extra_len = psa->size - (prs_offset(ps) - old_offset);
- uint8 c = 0;
-
- for (i = 0; i < extra_len; i++) {
- if (!prs_uint8("acl extra space", ps, depth, &c))
- return False;
- }
- }
-
- if(!prs_uint16_post("size ", ps, depth, &psa->size, offset_acl_size, old_offset))
- return False;
-
- return True;
-}
-
-/*******************************************************************
- Reads or writes a SEC_DESC structure.
- If reading and the *ppsd = NULL, allocates the structure.
-********************************************************************/
-
-bool sec_io_desc(const char *desc, SEC_DESC **ppsd, prs_struct *ps, int depth)
-{
- uint32 old_offset;
- uint32 max_offset = 0; /* after we're done, move offset to end */
- uint32 tmp_offset = 0;
- uint32 off_sacl, off_dacl, off_owner_sid, off_grp_sid;
- uint16 revision;
-
- SEC_DESC *psd;
-
- if (ppsd == NULL)
- return False;
-
- psd = *ppsd;
-
- if (psd == NULL) {
- if(UNMARSHALLING(ps)) {
- if((psd = PRS_ALLOC_MEM(ps,SEC_DESC,1)) == NULL)
- return False;
- *ppsd = psd;
- } else {
- /* Marshalling - just ignore. */
- return True;
- }
- }
-
- prs_debug(ps, depth, desc, "sec_io_desc");
- depth++;
-
- /* start of security descriptor stored for back-calc offset purposes */
- old_offset = prs_offset(ps);
-
- if (MARSHALLING(ps)) {
- revision = (uint16)psd->revision;
- }
-
- if(!prs_uint16("revision", ps, depth, &revision))
- return False;
-
- if (UNMARSHALLING(ps)) {
- psd->revision = (enum security_descriptor_revision)revision;
- }
-
- if(!prs_uint16("type ", ps, depth, &psd->type))
- return False;
-
- if (MARSHALLING(ps)) {
- uint32 offset = SEC_DESC_HEADER_SIZE;
-
- /*
- * Work out the offsets here, as we write it out.
- */
-
- if (psd->sacl != NULL) {
- off_sacl = offset;
- offset += psd->sacl->size;
- } else {
- off_sacl = 0;
- }
-
- if (psd->dacl != NULL) {
- off_dacl = offset;
- offset += psd->dacl->size;
- } else {
- off_dacl = 0;
- }
-
- if (psd->owner_sid != NULL) {
- off_owner_sid = offset;
- offset += ndr_size_dom_sid(psd->owner_sid, NULL, 0);
- } else {
- off_owner_sid = 0;
- }
-
- if (psd->group_sid != NULL) {
- off_grp_sid = offset;
- offset += ndr_size_dom_sid(psd->group_sid, NULL, 0);
- } else {
- off_grp_sid = 0;
- }
- }
-
- if(!prs_uint32("off_owner_sid", ps, depth, &off_owner_sid))
- return False;
-
- if(!prs_uint32("off_grp_sid ", ps, depth, &off_grp_sid))
- return False;
-
- if(!prs_uint32("off_sacl ", ps, depth, &off_sacl))
- return False;
-
- if(!prs_uint32("off_dacl ", ps, depth, &off_dacl))
- return False;
-
- max_offset = MAX(max_offset, prs_offset(ps));
-
- if (off_owner_sid != 0) {
-
- tmp_offset = prs_offset(ps);
- if(!prs_set_offset(ps, old_offset + off_owner_sid))
- return False;
-
- if (UNMARSHALLING(ps)) {
- /* reading */
- if((psd->owner_sid = PRS_ALLOC_MEM(ps,DOM_SID,1)) == NULL)
- return False;
- }
-
- if(!smb_io_dom_sid("owner_sid ", psd->owner_sid , ps, depth))
- return False;
-
- max_offset = MAX(max_offset, prs_offset(ps));
-
- if (!prs_set_offset(ps,tmp_offset))
- return False;
- }
-
- if (psd->group_sid != 0) {
-
- tmp_offset = prs_offset(ps);
- if(!prs_set_offset(ps, old_offset + off_grp_sid))
- return False;
-
- if (UNMARSHALLING(ps)) {
- /* reading */
- if((psd->group_sid = PRS_ALLOC_MEM(ps,DOM_SID,1)) == NULL)
- return False;
- }
-
- if(!smb_io_dom_sid("grp_sid", psd->group_sid, ps, depth))
- return False;
-
- max_offset = MAX(max_offset, prs_offset(ps));
-
- if (!prs_set_offset(ps,tmp_offset))
- return False;
- }
-
- if ((psd->type & SEC_DESC_SACL_PRESENT) && off_sacl) {
- tmp_offset = prs_offset(ps);
- if(!prs_set_offset(ps, old_offset + off_sacl))
- return False;
- if(!sec_io_acl("sacl", &psd->sacl, ps, depth))
- return False;
- max_offset = MAX(max_offset, prs_offset(ps));
- if (!prs_set_offset(ps,tmp_offset))
- return False;
- }
-
- if ((psd->type & SEC_DESC_DACL_PRESENT) && off_dacl != 0) {
- tmp_offset = prs_offset(ps);
- if(!prs_set_offset(ps, old_offset + off_dacl))
- return False;
- if(!sec_io_acl("dacl", &psd->dacl, ps, depth))
- return False;
- max_offset = MAX(max_offset, prs_offset(ps));
- if (!prs_set_offset(ps,tmp_offset))
- return False;
- }
-
- if(!prs_set_offset(ps, max_offset))
- return False;
-
- return True;
-}
-
-/*******************************************************************
- Reads or writes a SEC_DESC_BUF structure.
-********************************************************************/
-
-bool sec_io_desc_buf(const char *desc, SEC_DESC_BUF **ppsdb, prs_struct *ps, int depth)
-{
- uint32 off_len;
- uint32 off_max_len;
- uint32 old_offset;
- uint32 size;
- uint32 len;
- SEC_DESC_BUF *psdb;
- uint32 ptr;
-
- if (ppsdb == NULL)
- return False;
-
- psdb = *ppsdb;
-
- if (UNMARSHALLING(ps) && psdb == NULL) {
- if((psdb = PRS_ALLOC_MEM(ps,SEC_DESC_BUF,1)) == NULL)
- return False;
- *ppsdb = psdb;
- }
-
- prs_debug(ps, depth, desc, "sec_io_desc_buf");
- depth++;
-
- if(!prs_align(ps))
- return False;
-
- if(!prs_uint32_pre("max_len", ps, depth, &psdb->sd_size, &off_max_len))
- return False;
-
- ptr = 1;
- if(!prs_uint32 ("ptr ", ps, depth, &ptr))
- return False;
-
- len = ndr_size_security_descriptor(psdb->sd, NULL, 0);
- if(!prs_uint32_pre("len ", ps, depth, &len, &off_len))
- return False;
-
- old_offset = prs_offset(ps);
-
- /* reading, length is non-zero; writing, descriptor is non-NULL */
- if ((UNMARSHALLING(ps) && psdb->sd_size != 0) || (MARSHALLING(ps) && psdb->sd != NULL)) {
- if(!sec_io_desc("sec ", &psdb->sd, ps, depth))
- return False;
- }
-
- if(!prs_align(ps))
- return False;
-
- size = prs_offset(ps) - old_offset;
- if(!prs_uint32_post("max_len", ps, depth, &psdb->sd_size, off_max_len, size == 0 ? psdb->sd_size : size))
- return False;
-
- if(!prs_uint32_post("len ", ps, depth, &len, off_len, size))
- return False;
-
- return True;
-}
git.samba.org / metze / samba / wip.git / commitdiff