/*
* Unix SMB/CIFS implementation.
* libnet smbconf registry Support
- * Copyright (C) Michael Adam 2007
+ * Copyright (C) Michael Adam 2007-2008
* Copyright (C) Guenther Deschner 2007
*
* This program is free software; you can redistribute it and/or modify
*/
#include "includes.h"
+#include "libnet/libnet.h"
-/*
- * Open a subkey of KEY_SMBCONF (i.e a service)
- * - variant without error output (q = quiet)-
+/**********************************************************************
+ *
+ * Helper functions (mostly registry related)
+ * TODO: These should be eventually static.
+
+ **********************************************************************/
+
+/**
+ * add a string to a talloced array of strings.
*/
-WERROR libnet_smbconf_open_path_q(TALLOC_CTX *ctx, const char *subkeyname,
- uint32 desired_access,
- struct registry_key **key)
+static WERROR libnet_conf_add_string_to_array(TALLOC_CTX *mem_ctx,
+ char ***array,
+ uint32_t count,
+ const char *string)
{
- WERROR werr = WERR_OK;
- char *path = NULL;
- NT_USER_TOKEN *token;
+ char **new_array = NULL;
- if (!(token = registry_create_admin_token(ctx))) {
- DEBUG(1, ("Error creating admin token\n"));
- goto done;
+ if ((array == NULL) || (string == NULL)) {
+ return WERR_INVALID_PARAM;
}
- if (subkeyname == NULL) {
- path = talloc_strdup(ctx, KEY_SMBCONF);
- } else {
- path = talloc_asprintf(ctx, "%s\\%s", KEY_SMBCONF, subkeyname);
+ new_array = TALLOC_REALLOC_ARRAY(mem_ctx, *array, char *, count + 1);
+ if (new_array == NULL) {
+ return WERR_NOMEM;
}
- werr = reg_open_path(ctx, path, desired_access,
- token, key);
+ new_array[count] = talloc_strdup(new_array, string);
-done:
- TALLOC_FREE(path);
- return werr;
+ *array = new_array;
+
+ return WERR_OK;
}
-/*
- * check if a subkey of KEY_SMBCONF of a given name exists
+/**
+ * Open a registry key specified by "path"
*/
-bool libnet_smbconf_key_exists(TALLOC_CTX *ctx, const char *subkeyname)
+static WERROR libnet_conf_reg_open_path(TALLOC_CTX *mem_ctx,
+ const char *path,
+ uint32 desired_access,
+ struct registry_key **key)
{
- bool ret = False;
WERROR werr = WERR_OK;
- TALLOC_CTX *mem_ctx;
- struct registry_key *key;
+ NT_USER_TOKEN *token;
+ TALLOC_CTX *tmp_ctx = NULL;
- if (!(mem_ctx = talloc_new(ctx))) {
- d_fprintf(stderr, "ERROR: Out of memory...!\n");
+ if (path == NULL) {
+ DEBUG(1, ("Error: NULL path string given\n"));
+ werr = WERR_INVALID_PARAM;
goto done;
}
- werr = libnet_smbconf_open_path_q(mem_ctx, subkeyname, REG_KEY_READ, &key);
- if (W_ERROR_IS_OK(werr)) {
- ret = True;
+ tmp_ctx = talloc_new(mem_ctx);
+ if (tmp_ctx == NULL) {
+ werr = WERR_NOMEM;
+ goto done;
+ }
+
+ token = registry_create_admin_token(tmp_ctx);
+ if (token == NULL) {
+ DEBUG(1, ("Error creating admin token\n"));
+ /* what is the appropriate error code here? */
+ werr = WERR_CAN_NOT_COMPLETE;
+ goto done;
+ }
+
+ werr = reg_open_path(mem_ctx, path, desired_access, token, key);
+
+ if (!W_ERROR_IS_OK(werr)) {
+ DEBUG(1, ("Error opening registry path '%s': %s\n",
+ path, dos_errstr(werr)));
}
done:
- TALLOC_FREE(mem_ctx);
- return ret;
+ TALLOC_FREE(tmp_ctx);
+ return werr;
}
-/*
+/**
* Open a subkey of KEY_SMBCONF (i.e a service)
- * - variant with error output -
*/
-WERROR libnet_smbconf_open_path(TALLOC_CTX *ctx, const char *subkeyname,
- uint32 desired_access,
- struct registry_key **key)
+static WERROR libnet_conf_reg_open_service_key(TALLOC_CTX *ctx,
+ const char *servicename,
+ uint32 desired_access,
+ struct registry_key **key)
{
WERROR werr = WERR_OK;
+ char *path = NULL;
- werr = libnet_smbconf_open_path_q(ctx, subkeyname, desired_access, key);
- if (!W_ERROR_IS_OK(werr)) {
- d_fprintf(stderr, "Error opening registry path '%s\\%s': %s\n",
- KEY_SMBCONF,
- (subkeyname == NULL) ? "" : subkeyname,
- dos_errstr(werr));
+ if (servicename == NULL) {
+ DEBUG(3, ("Error: NULL servicename given.\n"));
+ werr = WERR_INVALID_PARAM;
+ goto done;
}
+ path = talloc_asprintf(ctx, "%s\\%s", KEY_SMBCONF, servicename);
+
+ werr = libnet_conf_reg_open_path(ctx, path, desired_access, key);
+
+done:
+ TALLOC_FREE(path);
return werr;
}
/*
* open the base key KEY_SMBCONF
*/
-WERROR libnet_smbconf_open_basepath(TALLOC_CTX *ctx, uint32 desired_access,
- struct registry_key **key)
+static WERROR libnet_conf_reg_open_base_key(TALLOC_CTX *ctx,
+ uint32 desired_access,
+ struct registry_key **key)
{
- return libnet_smbconf_open_path(ctx, NULL, desired_access, key);
+ return libnet_conf_reg_open_path(ctx, KEY_SMBCONF, desired_access, key);
+}
+
+static bool libnet_conf_value_exists(struct registry_key *key,
+ const char *param)
+{
+ bool ret = false;
+ WERROR werr = WERR_OK;
+ TALLOC_CTX *ctx = talloc_stackframe();
+ struct registry_value *value = NULL;
+
+ werr = reg_queryvalue(ctx, key, param, &value);
+ if (W_ERROR_IS_OK(werr)) {
+ ret = true;
+ }
+
+ TALLOC_FREE(ctx);
+ return ret;
}
/*
* create a subkey of KEY_SMBCONF
*/
-WERROR libnet_reg_createkey_internal(TALLOC_CTX *ctx,
- const char * subkeyname,
- struct registry_key **newkey)
+static WERROR libnet_conf_reg_create_service_key(TALLOC_CTX *ctx,
+ const char * subkeyname,
+ struct registry_key **newkey)
{
WERROR werr = WERR_OK;
struct registry_key *create_parent = NULL;
goto done;
}
- werr = libnet_smbconf_open_basepath(create_ctx, REG_KEY_WRITE, &create_parent);
+ werr = libnet_conf_reg_open_base_key(create_ctx, REG_KEY_WRITE,
+ &create_parent);
if (!W_ERROR_IS_OK(werr)) {
goto done;
}
werr = reg_createkey(ctx, create_parent, subkeyname,
REG_KEY_WRITE, newkey, &action);
if (W_ERROR_IS_OK(werr) && (action != REG_CREATED_NEW_KEY)) {
- d_fprintf(stderr, "Key '%s' already exists.\n", subkeyname);
+ DEBUG(10, ("Key '%s' already exists.\n", subkeyname));
werr = WERR_ALREADY_EXISTS;
}
if (!W_ERROR_IS_OK(werr)) {
- d_fprintf(stderr, "Error creating key %s: %s\n",
- subkeyname, dos_errstr(werr));
+ DEBUG(5, ("Error creating key %s: %s\n",
+ subkeyname, dos_errstr(werr)));
}
done:
return werr;
}
+/*
+ * add a value to a key.
+ */
+static WERROR libnet_conf_reg_set_value(struct registry_key *key,
+ const char *valname,
+ const char *valstr)
+{
+ struct registry_value val;
+ WERROR werr = WERR_OK;
+ char *subkeyname;
+ const char *canon_valname;
+ const char *canon_valstr;
+
+ if (!lp_canonicalize_parameter_with_value(valname, valstr,
+ &canon_valname,
+ &canon_valstr))
+ {
+ if (canon_valname == NULL) {
+ DEBUG(5, ("invalid parameter '%s' given\n",
+ valname));
+ } else {
+ DEBUG(5, ("invalid value '%s' given for "
+ "parameter '%s'\n", valstr, valname));
+ }
+ werr = WERR_INVALID_PARAM;
+ goto done;
+ }
+
+ ZERO_STRUCT(val);
+
+ val.type = REG_SZ;
+ val.v.sz.str = CONST_DISCARD(char *, canon_valstr);
+ val.v.sz.len = strlen(canon_valstr) + 1;
+
+ if (registry_smbconf_valname_forbidden(canon_valname)) {
+ DEBUG(5, ("Parameter '%s' not allowed in registry.\n",
+ canon_valname));
+ werr = WERR_INVALID_PARAM;
+ goto done;
+ }
+
+ subkeyname = strrchr_m(key->key->name, '\\');
+ if ((subkeyname == NULL) || (*(subkeyname +1) == '\0')) {
+ DEBUG(5, ("Invalid registry key '%s' given as "
+ "smbconf section.\n", key->key->name));
+ werr = WERR_INVALID_PARAM;
+ goto done;
+ }
+ subkeyname++;
+ if (!strequal(subkeyname, GLOBAL_NAME) &&
+ lp_parameter_is_global(valname))
+ {
+ DEBUG(5, ("Global paramter '%s' not allowed in "
+ "service definition ('%s').\n", canon_valname,
+ subkeyname));
+ werr = WERR_INVALID_PARAM;
+ goto done;
+ }
+
+ werr = reg_setvalue(key, canon_valname, &val);
+ if (!W_ERROR_IS_OK(werr)) {
+ DEBUG(5, ("Error adding value '%s' to "
+ "key '%s': %s\n",
+ canon_valname, key->key->name, dos_errstr(werr)));
+ }
+
+done:
+ return werr;
+}
+
+/**
+ * format a registry_value into a string.
+ *
+ * This is intended to be used for smbconf registry values,
+ * which are ar stored as REG_SZ values, so the incomplete
+ * handling should be ok.
+ */
+static char *libnet_conf_format_registry_value(TALLOC_CTX *mem_ctx,
+ struct registry_value *value)
+{
+ char *result = NULL;
+
+ /* alternatively, create a new talloc context? */
+ if (mem_ctx == NULL) {
+ return result;
+ }
+
+ switch (value->type) {
+ case REG_DWORD:
+ result = talloc_asprintf(mem_ctx, "%d", value->v.dword);
+ break;
+ case REG_SZ:
+ case REG_EXPAND_SZ:
+ result = talloc_asprintf(mem_ctx, "%s", value->v.sz.str);
+ break;
+ case REG_MULTI_SZ: {
+ uint32 j;
+ for (j = 0; j < value->v.multi_sz.num_strings; j++) {
+ result = talloc_asprintf(mem_ctx, "\"%s\" ",
+ value->v.multi_sz.strings[j]);
+ }
+ break;
+ }
+ case REG_BINARY:
+ result = talloc_asprintf(mem_ctx, "binary (%d bytes)",
+ (int)value->v.binary.length);
+ break;
+ default:
+ result = talloc_asprintf(mem_ctx, "<unprintable>");
+ break;
+ }
+ return result;
+}
+
+/**
+ * Get the values of a key as a list of value names
+ * and a list of value strings (ordered)
+ */
+static WERROR libnet_conf_reg_get_values(TALLOC_CTX *mem_ctx,
+ struct registry_key *key,
+ uint32_t *num_values,
+ char ***value_names,
+ char ***value_strings)
+{
+ TALLOC_CTX *tmp_ctx = NULL;
+ WERROR werr = WERR_OK;
+ uint32_t count;
+ struct registry_value *valvalue = NULL;
+ char *valname = NULL;
+ char **tmp_valnames = NULL;
+ char **tmp_valstrings = NULL;
+
+ if ((num_values == NULL) || (value_names == NULL) ||
+ (value_strings == NULL))
+ {
+ werr = WERR_INVALID_PARAM;
+ goto done;
+ }
+
+ tmp_ctx = talloc_new(mem_ctx);
+ if (tmp_ctx == NULL) {
+ werr = WERR_NOMEM;
+ goto done;
+ }
+
+ for (count = 0;
+ W_ERROR_IS_OK(werr = reg_enumvalue(tmp_ctx, key, count, &valname,
+ &valvalue));
+ count++)
+ {
+ char *valstring;
+
+ werr = libnet_conf_add_string_to_array(tmp_ctx,
+ &tmp_valnames,
+ count, valname);
+ if (!W_ERROR_IS_OK(werr)) {
+ goto done;
+ }
+
+ valstring = libnet_conf_format_registry_value(tmp_ctx,
+ valvalue);
+ werr = libnet_conf_add_string_to_array(tmp_ctx,
+ &tmp_valstrings,
+ count,
+ valstring);
+ if (!W_ERROR_IS_OK(werr)) {
+ goto done;
+ }
+ }
+ if (!W_ERROR_EQUAL(WERR_NO_MORE_ITEMS, werr)) {
+ goto done;
+ }
+
+ werr = WERR_OK;
+
+ *num_values = count;
+ if (count > 0) {
+ *value_names = talloc_move(mem_ctx, &tmp_valnames);
+ *value_strings = talloc_move(mem_ctx, &tmp_valstrings);
+ } else {
+ *value_names = NULL;
+ *value_strings = NULL;
+ }
+
+done:
+ TALLOC_FREE(tmp_ctx);
+ return werr;
+}
+
+/**********************************************************************
+ *
+ * The actual net conf api functions, that are exported.
+ *
+ **********************************************************************/
+
+/**
+ * Drop the whole configuration (restarting empty).
+ */
+WERROR libnet_conf_drop(void)
+{
+ char *path, *p;
+ WERROR werr = WERR_OK;
+ struct registry_key *parent_key = NULL;
+ struct registry_key *new_key = NULL;
+ TALLOC_CTX* mem_ctx = talloc_stackframe();
+ enum winreg_CreateAction action;
+
+ path = talloc_strdup(mem_ctx, KEY_SMBCONF);
+ if (path == NULL) {
+ werr = WERR_NOMEM;
+ goto done;
+ }
+ p = strrchr(path, '\\');
+ *p = '\0';
+ werr = libnet_conf_reg_open_path(mem_ctx, path, REG_KEY_WRITE,
+ &parent_key);
+
+ if (!W_ERROR_IS_OK(werr)) {
+ goto done;
+ }
+
+ werr = reg_deletekey_recursive(mem_ctx, parent_key, p+1);
+
+ if (!W_ERROR_IS_OK(werr)) {
+ goto done;
+ }
+
+ werr = reg_createkey(mem_ctx, parent_key, p+1, REG_KEY_WRITE,
+ &new_key, &action);
+
+done:
+ TALLOC_FREE(mem_ctx);
+ return werr;
+}
+
+/**
+ * Get the whole configuration as lists of strings with counts:
+ *
+ * num_shares : number of shares
+ * share_names : list of length num_shares of share names
+ * num_params : list of length num_shares of parameter counts for each share
+ * param_names : list of lists of parameter names for each share
+ * param_values : list of lists of parameter values for each share
+ */
+WERROR libnet_smbconf_get_config(TALLOC_CTX *mem_ctx, uint32_t *num_shares,
+ char ***share_names, uint32_t **num_params,
+ char ****param_names, char ****param_values)
+{
+ WERROR werr = WERR_OK;
+ TALLOC_CTX *tmp_ctx = NULL;
+ uint32_t tmp_num_shares;
+ char **tmp_share_names;
+ uint32_t *tmp_num_params;
+ char ***tmp_param_names;
+ char ***tmp_param_values;
+ uint32_t count;
+
+ if ((num_shares == NULL) || (share_names == NULL) ||
+ (num_params == NULL) || (param_names == NULL) ||
+ (param_values == NULL))
+ {
+ werr = WERR_INVALID_PARAM;
+ goto done;
+ }
+
+ tmp_ctx = talloc_new(mem_ctx);
+ if (tmp_ctx == NULL) {
+ werr = WERR_NOMEM;
+ goto done;
+ }
+
+ werr = libnet_smbconf_get_share_names(tmp_ctx, &tmp_num_shares,
+ &tmp_share_names);
+ if (!W_ERROR_IS_OK(werr)) {
+ goto done;
+ }
+
+ tmp_num_params = TALLOC_ARRAY(tmp_ctx, uint32_t, tmp_num_shares);
+ tmp_param_names = TALLOC_ARRAY(tmp_ctx, char **, tmp_num_shares);
+ tmp_param_values = TALLOC_ARRAY(tmp_ctx, char **, tmp_num_shares);
+
+ if ((tmp_num_params == NULL) || (tmp_param_names == NULL) ||
+ (tmp_param_values == NULL))
+ {
+ werr = WERR_NOMEM;
+ goto done;
+ }
+
+ for (count = 0; count < tmp_num_shares; count++) {
+ werr = libnet_smbconf_getshare(mem_ctx, tmp_share_names[count],
+ &tmp_num_params[count],
+ &tmp_param_names[count],
+ &tmp_param_values[count]);
+ if (!W_ERROR_IS_OK(werr)) {
+ goto done;
+ }
+ }
+
+ werr = WERR_OK;
+
+ *num_shares = tmp_num_shares;
+ if (tmp_num_shares > 0) {
+ *share_names = talloc_move(mem_ctx, &tmp_share_names);
+ *num_params = talloc_move(mem_ctx, &tmp_num_params);
+ *param_names = talloc_move(mem_ctx, &tmp_param_names);
+ *param_values = talloc_move(mem_ctx, &tmp_param_values);
+ } else {
+ *share_names = NULL;
+ *num_params = NULL;
+ *param_names = NULL;
+ *param_values = NULL;
+ }
+
+done:
+ TALLOC_FREE(tmp_ctx);
+ return werr;
+}
+
+
+/**
+ * get the list of share names defined in the configuration.
+ */
+WERROR libnet_smbconf_get_share_names(TALLOC_CTX *mem_ctx, uint32_t *num_shares,
+ char ***share_names)
+{
+ uint32_t count;
+ uint32_t added_count = 0;
+ TALLOC_CTX *tmp_ctx = NULL;
+ WERROR werr = WERR_OK;
+ struct registry_key *key = NULL;
+ char *subkey_name = NULL;
+ char **tmp_share_names = NULL;
+
+ if ((num_shares == NULL) || (share_names == NULL)) {
+ werr = WERR_INVALID_PARAM;
+ goto done;
+ }
+
+ tmp_ctx = talloc_new(mem_ctx);
+ if (tmp_ctx == NULL) {
+ werr = WERR_NOMEM;
+ goto done;
+ }
+
+ /* make sure "global" is always listed first */
+ if (libnet_smbconf_share_exists(GLOBAL_NAME)) {
+ werr = libnet_conf_add_string_to_array(tmp_ctx,
+ &tmp_share_names,
+ 0, GLOBAL_NAME);
+ if (!W_ERROR_IS_OK(werr)) {
+ goto done;
+ }
+ added_count++;
+ }
+
+ werr = libnet_conf_reg_open_base_key(tmp_ctx, SEC_RIGHTS_ENUM_SUBKEYS,
+ &key);
+ if (!W_ERROR_IS_OK(werr)) {
+ goto done;
+ }
+
+ for (count = 0;
+ W_ERROR_IS_OK(werr = reg_enumkey(tmp_ctx, key, count,
+ &subkey_name, NULL));
+ count++)
+ {
+ if (strequal(subkey_name, GLOBAL_NAME)) {
+ continue;
+ }
+
+ werr = libnet_conf_add_string_to_array(tmp_ctx,
+ &tmp_share_names,
+ added_count,
+ subkey_name);
+ if (!W_ERROR_IS_OK(werr)) {
+ goto done;
+ }
+ added_count++;
+ }
+ if (!W_ERROR_EQUAL(WERR_NO_MORE_ITEMS, werr)) {
+ goto done;
+ }
+ werr = WERR_OK;
+
+ *num_shares = added_count;
+ if (added_count > 0) {
+ *share_names = talloc_move(mem_ctx, &tmp_share_names);
+ } else {
+ *share_names = NULL;
+ }
+
+done:
+ TALLOC_FREE(tmp_ctx);
+ return werr;
+}
+
+/**
+ * check if a share/service of a given name exists
+ */
+bool libnet_smbconf_share_exists(const char *servicename)
+{
+ bool ret = false;
+ WERROR werr = WERR_OK;
+ TALLOC_CTX *mem_ctx = talloc_stackframe();
+ struct registry_key *key = NULL;
+
+ werr = libnet_conf_reg_open_service_key(mem_ctx, servicename,
+ REG_KEY_READ, &key);
+ if (W_ERROR_IS_OK(werr)) {
+ ret = true;
+ }
+
+ TALLOC_FREE(mem_ctx);
+ return ret;
+}
+
+/**
+ * Add a service if it does not already exist.
+ */
+WERROR libnet_smbconf_create_share(const char *servicename)
+{
+ WERROR werr;
+ TALLOC_CTX *mem_ctx = talloc_stackframe();
+ struct registry_key *key = NULL;
+
+ if (libnet_smbconf_share_exists(servicename)) {
+ werr = WERR_ALREADY_EXISTS;
+ goto done;
+ }
+
+ werr = libnet_conf_reg_create_service_key(mem_ctx, servicename, &key);
+
+done:
+ TALLOC_FREE(mem_ctx);
+ return werr;
+}
+
+/**
+ * get a definition of a share (service) from configuration.
+ */
+WERROR libnet_smbconf_getshare(TALLOC_CTX *mem_ctx, const char *servicename,
+ uint32_t *num_params, char ***param_names,
+ char ***param_values)
+{
+ WERROR werr = WERR_OK;
+ struct registry_key *key = NULL;
+
+ werr = libnet_conf_reg_open_service_key(mem_ctx, servicename,
+ REG_KEY_READ, &key);
+ if (!W_ERROR_IS_OK(werr)) {
+ goto done;
+ }
+
+ werr = libnet_conf_reg_get_values(mem_ctx, key, num_params,
+ param_names, param_values);
+
+done:
+ TALLOC_FREE(key);
+ return werr;
+}
+
+/**
+ * delete a service from configuration
+ */
+WERROR libnet_smbconf_delshare(const char *servicename)
+{
+ WERROR werr = WERR_OK;
+ struct registry_key *key = NULL;
+ TALLOC_CTX *ctx = talloc_stackframe();
+
+ werr = libnet_conf_reg_open_base_key(ctx, REG_KEY_WRITE, &key);
+ if (!W_ERROR_IS_OK(werr)) {
+ goto done;
+ }
+
+ werr = reg_deletekey_recursive(key, key, servicename);
+
+done:
+ TALLOC_FREE(ctx);
+ return werr;
+}
+
+/**
+ * set a configuration parameter to the value provided.
+ */
+WERROR libnet_smbconf_setparm(const char *service,
+ const char *param,
+ const char *valstr)
+{
+ WERROR werr;
+ struct registry_key *key = NULL;
+ TALLOC_CTX *mem_ctx = talloc_stackframe();
+
+ if (!libnet_smbconf_share_exists(service)) {
+ werr = WERR_NO_SUCH_SERVICE;
+ goto done;
+ }
+
+ werr = libnet_conf_reg_open_service_key(mem_ctx, service, REG_KEY_WRITE,
+ &key);
+ if (!W_ERROR_IS_OK(werr)) {
+ goto done;
+ }
+
+ werr = libnet_conf_reg_set_value(key, param, valstr);
+
+done:
+ TALLOC_FREE(mem_ctx);
+ return werr;
+}
+
+/**
+ * get the value of a configuration parameter as a string
+ */
+WERROR libnet_smbconf_getparm(TALLOC_CTX *mem_ctx,
+ const char *service,
+ const char *param,
+ char **valstr)
+{
+ WERROR werr = WERR_OK;
+ struct registry_key *key = NULL;
+ struct registry_value *value = NULL;
+
+ if (valstr == NULL) {
+ werr = WERR_INVALID_PARAM;
+ goto done;
+ }
+
+ if (!libnet_smbconf_share_exists(service)) {
+ werr = WERR_NO_SUCH_SERVICE;
+ goto done;
+ }
+
+ werr = libnet_conf_reg_open_service_key(mem_ctx, service, REG_KEY_READ,
+ &key);
+ if (!W_ERROR_IS_OK(werr)) {
+ goto done;
+ }
+
+ if (!libnet_conf_value_exists(key, param)) {
+ werr = WERR_INVALID_PARAM;
+ goto done;
+ }
+
+ werr = reg_queryvalue(mem_ctx, key, param, &value);
+ if (!W_ERROR_IS_OK(werr)) {
+ goto done;
+ }
+
+ *valstr = libnet_conf_format_registry_value(mem_ctx, value);
+
+ if (*valstr == NULL) {
+ werr = WERR_NOMEM;
+ }
+
+done:
+ TALLOC_FREE(key);
+ TALLOC_FREE(value);
+ return werr;
+}
+
+/**
+ * delete a parameter from configuration
+ */
+WERROR libnet_smbconf_delparm(const char *service,
+ const char *param)
+{
+ struct registry_key *key = NULL;
+ WERROR werr = WERR_OK;
+ TALLOC_CTX *mem_ctx = talloc_stackframe();
+
+ if (!libnet_smbconf_share_exists(service)) {
+ return WERR_NO_SUCH_SERVICE;
+ }
+
+ werr = libnet_conf_reg_open_service_key(mem_ctx, service, REG_KEY_ALL,
+ &key);
+ if (!W_ERROR_IS_OK(werr)) {
+ goto done;
+ }
+
+ if (!libnet_conf_value_exists(key, param)) {
+ werr = WERR_INVALID_PARAM;
+ goto done;
+ }
+
+ werr = reg_deletevalue(key, param);
+
+done:
+ TALLOC_FREE(mem_ctx);
+ return werr;
+}
+
+
+/**********************************************************************
+ *
+ * Convenience functions that are also exported.
+ *
+ **********************************************************************/
+
+WERROR libnet_smbconf_set_global_param(const char *param,
+ const char *val)
+{
+ return libnet_smbconf_setparm(GLOBAL_NAME, param, val);
+}
+