Unix SMB/CIFS implementation.
Reading Registry.pol PReg registry files
- Copyright (C) Wilco Baan Hofman 2006
+ Copyright (C) Wilco Baan Hofman 2006-2008
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
+ 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,
#include "includes.h"
#include "lib/registry/registry.h"
-#include "lib/registry/patchfile.h"
#include "system/filesys.h"
-#include "pstring.h"
+#include "librpc/gen_ndr/winreg.h"
struct preg_data {
int fd;
+ TALLOC_CTX *ctx;
};
static WERROR preg_read_utf16(int fd, char *c)
push_codepoint(c, v);
return WERR_OK;
}
-
-/* FIXME These functions need to be implemented */
-static WERROR reg_preg_diff_add_key(void *_data, const char *key_name)
+static WERROR preg_write_utf16(int fd, const char *string)
{
- struct preg_data *data = (struct preg_data *)_data;
+ codepoint_t v;
+ uint16_t i;
+ size_t size;
+
+ for (i = 0; i < strlen(string); i+=size) {
+ v = next_codepoint(&string[i], &size);
+ if (write(fd, &v, 2) < 2) {
+ return WERR_GENERAL_FAILURE;
+ }
+ }
return WERR_OK;
}
-
-static WERROR reg_preg_diff_del_key(void *_data, const char *key_name)
+/* PReg does not support adding keys. */
+static WERROR reg_preg_diff_add_key(void *_data, const char *key_name)
{
- struct preg_data *data = (struct preg_data *)_data;
return WERR_OK;
}
uint32_t value_type, DATA_BLOB value_data)
{
struct preg_data *data = (struct preg_data *)_data;
+ uint32_t buf;
+
+ preg_write_utf16(data->fd, "[");
+ preg_write_utf16(data->fd, key_name);
+ preg_write_utf16(data->fd, ";");
+ preg_write_utf16(data->fd, value_name);
+ preg_write_utf16(data->fd, ";");
+ SIVAL(&buf, 0, value_type);
+ write(data->fd, &buf, sizeof(uint32_t));
+ preg_write_utf16(data->fd, ";");
+ SIVAL(&buf, 0, value_data.length);
+ write(data->fd, &buf, sizeof(uint32_t));
+ preg_write_utf16(data->fd, ";");
+ write(data->fd, value_data.data, value_data.length);
+ preg_write_utf16(data->fd, "]");
+
return WERR_OK;
}
+static WERROR reg_preg_diff_del_key(void *_data, const char *key_name)
+{
+ struct preg_data *data = (struct preg_data *)_data;
+ char *parent_name;
+ DATA_BLOB blob;
+
+ parent_name = talloc_strndup(data->ctx, key_name, strrchr(key_name, '\\')-key_name);
+ blob.data = (uint8_t *)talloc_strndup(data->ctx, key_name+(strrchr(key_name, '\\')-key_name)+1,
+ strlen(key_name)-(strrchr(key_name, '\\')-key_name));
+ blob.length = strlen((char *)blob.data)+1;
+
+
+ /* FIXME: These values should be accumulated to be written at done(). */
+ return reg_preg_diff_set_value(data, parent_name, "**DeleteKeys", REG_SZ, blob);
+}
+
static WERROR reg_preg_diff_del_value(void *_data, const char *key_name,
const char *value_name)
{
struct preg_data *data = (struct preg_data *)_data;
- return WERR_OK;
+ char *val;
+ DATA_BLOB blob;
+
+ val = talloc_asprintf(data->ctx, "**Del.%s", value_name);
+
+ blob.data = (uint8_t *)talloc(data->ctx, uint32_t);
+ SIVAL(blob.data, 0, 0);
+ blob.length = 4;
+ return reg_preg_diff_set_value(data, key_name, val, REG_DWORD, blob);
}
static WERROR reg_preg_diff_del_all_values(void *_data, const char *key_name)
{
struct preg_data *data = (struct preg_data *)_data;
- return WERR_OK;
+ DATA_BLOB blob;
+
+ blob.data = (uint8_t *)talloc(data->ctx, uint32_t);
+ SIVAL(blob.data, 0, 0);
+ blob.length = 4;
+
+ return reg_preg_diff_set_value(data, key_name, "**DelVals.", REG_DWORD, blob);
}
static WERROR reg_preg_diff_done(void *_data)
{
struct preg_data *data = (struct preg_data *)_data;
-
+
close(data->fd);
talloc_free(data);
return WERR_OK;
* Save registry diff
*/
_PUBLIC_ WERROR reg_preg_diff_save(TALLOC_CTX *ctx, const char *filename,
+ struct smb_iconv_convenience *ic,
struct reg_diff_callbacks **callbacks,
void **callback_data)
{
*callback_data = data;
if (filename) {
- data->fd = open(filename, O_CREAT, 0755);
- if (data->fd == -1) {
+ data->fd = open(filename, O_CREAT|O_WRONLY, 0755);
+ if (data->fd < 0) {
DEBUG(0, ("Unable to open %s\n", filename));
return WERR_BADFILE;
}
} else {
data->fd = STDOUT_FILENO;
}
- snprintf(preg_header.hdr, 4, "PReg");
+
+ strncpy(preg_header.hdr, "PReg", 4);
SIVAL(&preg_header, 4, 1);
write(data->fd, (uint8_t *)&preg_header,8);
+ data->ctx = ctx;
+
*callbacks = talloc(ctx, struct reg_diff_callbacks);
(*callbacks)->add_key = reg_preg_diff_add_key;
* Load diff file
*/
_PUBLIC_ WERROR reg_preg_diff_load(int fd,
+ struct smb_iconv_convenience *iconv_convenience,
const struct reg_diff_callbacks *callbacks,
void *callback_data)
{
char hdr[4];
uint32_t version;
} preg_header;
- pstring buf;
- char *buf_ptr = buf;
+ char *buf;
+ size_t buf_size = 1024;
+ char *buf_ptr;
TALLOC_CTX *mem_ctx = talloc_init("reg_preg_diff_load");
+ WERROR ret = WERR_OK;
+ DATA_BLOB data = {NULL, 0};
+ char *key = NULL;
+ char *value_name = NULL;
+ buf = talloc_array(mem_ctx, char, buf_size);
+ buf_ptr = buf;
/* Read first 8 bytes (the header) */
if (read(fd, &preg_header, 8) != 8) {
DEBUG(0, ("Could not read PReg file: %s\n",
strerror(errno)));
- close(fd);
- return WERR_GENERAL_FAILURE;
+ ret = WERR_GENERAL_FAILURE;
+ goto cleanup;
}
+ preg_header.version = IVAL(&preg_header.version, 0);
+
if (strncmp(preg_header.hdr, "PReg", 4) != 0) {
DEBUG(0, ("This file is not a valid preg registry file\n"));
- close(fd);
- return WERR_GENERAL_FAILURE;
+ ret = WERR_GENERAL_FAILURE;
+ goto cleanup;
}
if (preg_header.version > 1) {
DEBUG(0, ("Warning: file format version is higher than expected.\n"));
/* Read the entries */
while(1) {
- char *key, *value_name;
uint32_t value_type, length;
- DATA_BLOB data;
if (!W_ERROR_IS_OK(preg_read_utf16(fd, buf_ptr))) {
break;
}
if (*buf_ptr != '[') {
DEBUG(0, ("Error in PReg file.\n"));
- close(fd);
- return WERR_GENERAL_FAILURE;
+ ret = WERR_GENERAL_FAILURE;
+ goto cleanup;
}
/* Get the path */
buf_ptr = buf;
while (W_ERROR_IS_OK(preg_read_utf16(fd, buf_ptr)) &&
- *buf_ptr != ';' && buf_ptr-buf < sizeof(buf)) {
+ *buf_ptr != ';' && buf_ptr-buf < buf_size) {
buf_ptr++;
}
- key = talloc_asprintf(mem_ctx, "\\%s", buf);
+ buf[buf_ptr-buf] = '\0';
+ key = talloc_strdup(mem_ctx, buf);
/* Get the name */
buf_ptr = buf;
while (W_ERROR_IS_OK(preg_read_utf16(fd, buf_ptr)) &&
- *buf_ptr != ';' && buf_ptr-buf < sizeof(buf)) {
+ *buf_ptr != ';' && buf_ptr-buf < buf_size) {
buf_ptr++;
}
+ buf[buf_ptr-buf] = '\0';
value_name = talloc_strdup(mem_ctx, buf);
/* Get the type */
if (read(fd, &value_type, 4) < 4) {
DEBUG(0, ("Error while reading PReg\n"));
- close(fd);
- return WERR_GENERAL_FAILURE;
+ ret = WERR_GENERAL_FAILURE;
+ goto cleanup;
}
+ value_type = IVAL(&value_type, 0);
+
/* Read past delimiter */
buf_ptr = buf;
if (!(W_ERROR_IS_OK(preg_read_utf16(fd, buf_ptr)) &&
- *buf_ptr == ';') && buf_ptr-buf < sizeof(buf)) {
+ *buf_ptr == ';') && buf_ptr-buf < buf_size) {
DEBUG(0, ("Error in PReg file.\n"));
- close(fd);
- return WERR_GENERAL_FAILURE;
+ ret = WERR_GENERAL_FAILURE;
+ goto cleanup;
}
/* Get data length */
if (read(fd, &length, 4) < 4) {
DEBUG(0, ("Error while reading PReg\n"));
- close(fd);
- return WERR_GENERAL_FAILURE;
+ ret = WERR_GENERAL_FAILURE;
+ goto cleanup;
}
/* Read past delimiter */
buf_ptr = buf;
if (!(W_ERROR_IS_OK(preg_read_utf16(fd, buf_ptr)) &&
- *buf_ptr == ';') && buf_ptr-buf < sizeof(buf)) {
+ *buf_ptr == ';') && buf_ptr-buf < buf_size) {
DEBUG(0, ("Error in PReg file.\n"));
- close(fd);
- return WERR_GENERAL_FAILURE;
+ ret = WERR_GENERAL_FAILURE;
+ goto cleanup;
}
/* Get the data */
buf_ptr = buf;
- if (length < sizeof(buf) &&
+ if (length < buf_size &&
read(fd, buf_ptr, length) != length) {
DEBUG(0, ("Error while reading PReg\n"));
- close(fd);
- return WERR_GENERAL_FAILURE;
+ ret = WERR_GENERAL_FAILURE;
+ goto cleanup;
}
data = data_blob_talloc(mem_ctx, buf, length);
/* Check if delimiter is in place (whine if it isn't) */
buf_ptr = buf;
if (!(W_ERROR_IS_OK(preg_read_utf16(fd, buf_ptr)) &&
- *buf_ptr == ']') && buf_ptr-buf < sizeof(buf)) {
+ *buf_ptr == ']') && buf_ptr-buf < buf_size) {
DEBUG(0, ("Warning: Missing ']' in PReg file, expected ']', got '%c' 0x%x.\n",
*buf_ptr, *buf_ptr));
}
callbacks->set_value(callback_data, key, value_name,
value_type, data);
}
- talloc_free(key);
- talloc_free(value_name);
- talloc_free(data.data);
}
+cleanup:
close(fd);
- return WERR_OK;
+ talloc_free(data.data);
+ talloc_free(key);
+ talloc_free(value_name);
+ talloc_free(buf);
+ return ret;
}
git.samba.org / ira / wip.git / blobdiff