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/*
Samba Unix/Linux SMB client utility libeditreg.c
Copyright (C) 2004 Jelmer Vernooij, jelmer@samba.org
Backend for Windows '95 registry files. Explanation of file format
comes from http://www.cs.mun.ca/~michael/regutils/.
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 2 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, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "includes.h"
#include "lib/registry/common/registry.h"
/**
* The registry starts with a header that contains pointers to
* the rgdb.
*
* After the main header follows the RGKN header (key index table) */
typedef unsigned int DWORD;
typedef unsigned short WORD;
typedef struct regc_block {
DWORD REGC_ID; /* REGC */
DWORD uk1;
DWORD rgdb_offset;
DWORD chksum;
WORD num_rgdb;
WORD flags;
DWORD uk2;
DWORD uk3;
DWORD uk4;
DWORD uk5;
} REGC_HDR;
typedef struct rgkn_block {
DWORD RGKN_ID; /* RGKN */
DWORD size;
DWORD root_offset;
DWORD free_offset;
DWORD flags;
DWORD chksum;
DWORD uk1;
DWORD uk2;
} RGKN_HDR;
typedef struct rgkn_key {
DWORD inuse;
DWORD hash;
DWORD next_free;
DWORD parent;
DWORD child;
DWORD next;
WORD id;
WORD rgdb;
} RGKN_KEY;
typedef struct rgdb_block {
DWORD RGDB_ID; /* RGDB */
DWORD size;
DWORD unused_size;
WORD flags;
WORD section;
DWORD free_offset; /* -1 if there is no free space */
WORD max_id;
WORD first_free_id;
DWORD uk1;
DWORD chksum;
} RGDB_HDR;
typedef struct rgdb_key {
DWORD inuse;
DWORD hash;
DWORD next_free;
DWORD parent;
DWORD child;
DWORD next;
WORD id;
WORD rgdb;
} RGDB_KEY;
typedef struct rgdb_value {
DWORD type;
DWORD uk1;
DWORD name_len;
DWORD data_len;
} RGDB_VALUE;
typedef struct regc_struct_s {
int fd;
struct stat sbuf;
BOOL modified;
char *base;
} REGC;
static WERROR w95_open_reg (REG_HANDLE *h, const char *location, const char *credentials)
{
REGC *regc = talloc_p(h->mem_ctx, REGC);
REGC_HDR *regc_hdr;
RGKN_HDR *rgkn_hdr;
DWORD regc_id, rgkn_id;
memset(regc, 0, sizeof(REGC));
h->backend_data = regc;
if((regc->fd = open(location, O_RDONLY, 0000)) < 0) {
return WERR_FOOBAR;
}
if(fstat(regc->fd, ®c->sbuf) < 0) {
return WERR_FOOBAR;
}
regc->base = mmap(0, regc->sbuf.st_size, PROT_READ, MAP_SHARED, regc->fd, 0);
regc_hdr = (REGC_HDR *)regc->base;
if ((int)regc->base == 1) {
return WERR_FOOBAR;
}
if ((regc_id = IVAL(®c_hdr->REGC_ID,0)) != str_to_dword("REGC")) {
DEBUG(0, ("Unrecognized Windows 95 registry header id: %0X, %s\n",
regc_id, location));
return WERR_FOOBAR;
}
rgkn_hdr = (RGKN_HDR *)regc->base + sizeof(REGC_HDR);
if ((rgkn_id = IVAL(&rgkn_hdr->RGKN_ID,0)) != str_to_dword("RGKN")) {
DEBUG(0, ("Unrecognized Windows 95 registry key index id: %0X, %s\n",
rgkn_id, location));
return WERR_FOOBAR;
}
//rgkn = (RGKN_KEY *)regc->base + sizeof(REGC_HDR) + sizeof(RGKN_HDR);
/* FIXME */
return WERR_OK;
}
static WERROR w95_close_reg(REG_HANDLE *h)
{
REGC *regc = h->backend_data;
if (regc->base) munmap(regc->base, regc->sbuf.st_size);
regc->base = NULL;
close(regc->fd);
return WERR_OK;
}
static struct registry_ops reg_backend_w95 = {
.name = "w95",
.open_registry = w95_open_reg,
.close_registry = w95_close_reg,
};
NTSTATUS reg_w95_init(void)
{
return register_backend("registry", ®_backend_w95);
}
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