mirror of
https://github.com/samba-team/samba.git
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4d391d29f8
Signed-off-by: Michael Adam <obnox@samba.org>
435 lines
9.9 KiB
C
435 lines
9.9 KiB
C
/*
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* Unix SMB/CIFS implementation.
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* libsmbconf - Samba configuration library
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* Copyright (C) Michael Adam 2007-2008
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* Copyright (C) Guenther Deschner 2007
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*
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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 3 of the License, or
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* (at your option) any later version.
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*
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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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*
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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, see <http://www.gnu.org/licenses/>.
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*/
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#include "includes.h"
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#include "smbconf_private.h"
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/**********************************************************************
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*
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* internal helper functions
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*
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**********************************************************************/
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static sbcErr smbconf_global_check(struct smbconf_ctx *ctx)
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{
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if (!smbconf_share_exists(ctx, GLOBAL_NAME)) {
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return smbconf_create_share(ctx, GLOBAL_NAME);
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}
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return SBC_ERR_OK;
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}
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/**********************************************************************
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*
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* The actual libsmbconf API functions that are exported.
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*
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**********************************************************************/
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const char *sbcErrorString(sbcErr error)
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{
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switch (error) {
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case SBC_ERR_OK:
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return "SBC_ERR_OK";
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case SBC_ERR_NOT_IMPLEMENTED:
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return "SBC_ERR_NOT_IMPLEMENTED";
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case SBC_ERR_NOT_SUPPORTED:
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return "SBC_ERR_NOT_SUPPORTED";
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case SBC_ERR_UNKNOWN_FAILURE:
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return "SBC_ERR_UNKNOWN_FAILURE";
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case SBC_ERR_NOMEM:
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return "SBC_ERR_NOMEM";
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case SBC_ERR_INVALID_PARAM:
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return "SBC_ERR_INVALID_PARAM";
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case SBC_ERR_BADFILE:
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return "SBC_ERR_BADFILE";
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case SBC_ERR_NO_SUCH_SERVICE:
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return "SBC_ERR_NO_SUCH_SERVICE";
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case SBC_ERR_IO_FAILURE:
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return "SBC_ERR_IO_FAILURE";
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case SBC_ERR_CAN_NOT_COMPLETE:
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return "SBC_ERR_CAN_NOT_COMPLETE";
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case SBC_ERR_NO_MORE_ITEMS:
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return "SBC_ERR_NO_MORE_ITEMS";
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case SBC_ERR_FILE_EXISTS:
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return "SBC_ERR_FILE_EXISTS";
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case SBC_ERR_ACCESS_DENIED:
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return "SBC_ERR_ACCESS_DENIED";
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}
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return "unknown sbcErr value";
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}
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/**
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* Tell whether the backend requires messaging to be set up
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* for the backend to work correctly.
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*/
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bool smbconf_backend_requires_messaging(struct smbconf_ctx *ctx)
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{
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return ctx->ops->requires_messaging(ctx);
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}
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/**
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* Tell whether the source is writeable.
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*/
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bool smbconf_is_writeable(struct smbconf_ctx *ctx)
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{
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return ctx->ops->is_writeable(ctx);
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}
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/**
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* Close the configuration.
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*/
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void smbconf_shutdown(struct smbconf_ctx *ctx)
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{
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talloc_free(ctx);
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}
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/**
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* Detect changes in the configuration.
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* The given csn struct is filled with the current csn.
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* smbconf_changed() can also be used for initial retrieval
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* of the csn.
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*/
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bool smbconf_changed(struct smbconf_ctx *ctx, struct smbconf_csn *csn,
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const char *service, const char *param)
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{
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struct smbconf_csn old_csn;
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if (csn == NULL) {
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return false;
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}
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old_csn = *csn;
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ctx->ops->get_csn(ctx, csn, service, param);
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return (csn->csn != old_csn.csn);
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}
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/**
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* Drop the whole configuration (restarting empty).
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*/
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sbcErr smbconf_drop(struct smbconf_ctx *ctx)
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{
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return ctx->ops->drop(ctx);
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}
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/**
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* Get the whole configuration as lists of strings with counts:
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*
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* num_shares : number of shares
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* share_names : list of length num_shares of share names
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* num_params : list of length num_shares of parameter counts for each share
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* param_names : list of lists of parameter names for each share
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* param_values : list of lists of parameter values for each share
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*/
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sbcErr smbconf_get_config(struct smbconf_ctx *ctx,
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TALLOC_CTX *mem_ctx,
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uint32_t *num_shares,
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struct smbconf_service ***services)
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{
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sbcErr err;
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TALLOC_CTX *tmp_ctx = NULL;
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uint32_t tmp_num_shares;
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char **tmp_share_names;
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struct smbconf_service **tmp_services;
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uint32_t count;
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if ((num_shares == NULL) || (services == NULL)) {
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err = SBC_ERR_INVALID_PARAM;
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goto done;
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}
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tmp_ctx = talloc_stackframe();
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err = smbconf_get_share_names(ctx, tmp_ctx, &tmp_num_shares,
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&tmp_share_names);
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if (!SBC_ERROR_IS_OK(err)) {
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goto done;
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}
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tmp_services = talloc_array(tmp_ctx, struct smbconf_service *,
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tmp_num_shares);
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if (tmp_services == NULL) {
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err = SBC_ERR_NOMEM;
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goto done;
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}
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for (count = 0; count < tmp_num_shares; count++) {
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err = smbconf_get_share(ctx, tmp_services,
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tmp_share_names[count],
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&tmp_services[count]);
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if (!SBC_ERROR_IS_OK(err)) {
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goto done;
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}
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}
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err = SBC_ERR_OK;
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*num_shares = tmp_num_shares;
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if (tmp_num_shares > 0) {
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*services = talloc_move(mem_ctx, &tmp_services);
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} else {
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*services = NULL;
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}
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done:
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talloc_free(tmp_ctx);
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return err;
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}
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/**
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* get the list of share names defined in the configuration.
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*/
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sbcErr smbconf_get_share_names(struct smbconf_ctx *ctx,
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TALLOC_CTX *mem_ctx,
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uint32_t *num_shares,
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char ***share_names)
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{
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return ctx->ops->get_share_names(ctx, mem_ctx, num_shares,
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share_names);
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}
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/**
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* check if a share/service of a given name exists
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*/
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bool smbconf_share_exists(struct smbconf_ctx *ctx,
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const char *servicename)
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{
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return ctx->ops->share_exists(ctx, servicename);
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}
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/**
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* Add a service if it does not already exist.
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*/
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sbcErr smbconf_create_share(struct smbconf_ctx *ctx,
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const char *servicename)
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{
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if ((servicename != NULL) && smbconf_share_exists(ctx, servicename)) {
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return SBC_ERR_FILE_EXISTS;
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}
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return ctx->ops->create_share(ctx, servicename);
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}
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/**
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* get a definition of a share (service) from configuration.
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*/
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sbcErr smbconf_get_share(struct smbconf_ctx *ctx,
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TALLOC_CTX *mem_ctx,
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const char *servicename,
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struct smbconf_service **service)
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{
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return ctx->ops->get_share(ctx, mem_ctx, servicename, service);
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}
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/**
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* delete a service from configuration
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*/
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sbcErr smbconf_delete_share(struct smbconf_ctx *ctx, const char *servicename)
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{
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if (!smbconf_share_exists(ctx, servicename)) {
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return SBC_ERR_NO_SUCH_SERVICE;
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}
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return ctx->ops->delete_share(ctx, servicename);
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}
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/**
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* set a configuration parameter to the value provided.
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*/
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sbcErr smbconf_set_parameter(struct smbconf_ctx *ctx,
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const char *service,
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const char *param,
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const char *valstr)
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{
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return ctx->ops->set_parameter(ctx, service, param, valstr);
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}
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/**
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* Set a global parameter
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* (i.e. a parameter in the [global] service).
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*
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* This also creates [global] when it does not exist.
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*/
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sbcErr smbconf_set_global_parameter(struct smbconf_ctx *ctx,
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const char *param, const char *val)
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{
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sbcErr err;
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err = smbconf_global_check(ctx);
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if (!SBC_ERROR_IS_OK(err)) {
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return err;
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}
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err = smbconf_set_parameter(ctx, GLOBAL_NAME, param, val);
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return err;
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}
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/**
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* get the value of a configuration parameter as a string
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*/
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sbcErr smbconf_get_parameter(struct smbconf_ctx *ctx,
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TALLOC_CTX *mem_ctx,
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const char *service,
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const char *param,
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char **valstr)
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{
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if (valstr == NULL) {
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return SBC_ERR_INVALID_PARAM;
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}
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return ctx->ops->get_parameter(ctx, mem_ctx, service, param, valstr);
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}
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/**
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* Get the value of a global parameter.
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*
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* Create [global] if it does not exist.
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*/
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sbcErr smbconf_get_global_parameter(struct smbconf_ctx *ctx,
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TALLOC_CTX *mem_ctx,
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const char *param,
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char **valstr)
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{
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sbcErr err;
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err = smbconf_global_check(ctx);
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if (!SBC_ERROR_IS_OK(err)) {
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return err;
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}
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err = smbconf_get_parameter(ctx, mem_ctx, GLOBAL_NAME, param,
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valstr);
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return err;
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}
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/**
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* delete a parameter from configuration
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*/
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sbcErr smbconf_delete_parameter(struct smbconf_ctx *ctx,
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const char *service, const char *param)
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{
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return ctx->ops->delete_parameter(ctx, service, param);
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}
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/**
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* Delete a global parameter.
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*
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* Create [global] if it does not exist.
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*/
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sbcErr smbconf_delete_global_parameter(struct smbconf_ctx *ctx,
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const char *param)
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{
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sbcErr err;
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err = smbconf_global_check(ctx);
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if (!SBC_ERROR_IS_OK(err)) {
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return err;
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}
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err = smbconf_delete_parameter(ctx, GLOBAL_NAME, param);
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return err;
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}
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sbcErr smbconf_get_includes(struct smbconf_ctx *ctx,
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TALLOC_CTX *mem_ctx,
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const char *service,
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uint32_t *num_includes, char ***includes)
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{
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return ctx->ops->get_includes(ctx, mem_ctx, service, num_includes,
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includes);
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}
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sbcErr smbconf_get_global_includes(struct smbconf_ctx *ctx,
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TALLOC_CTX *mem_ctx,
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uint32_t *num_includes, char ***includes)
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{
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sbcErr err;
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err = smbconf_global_check(ctx);
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if (!SBC_ERROR_IS_OK(err)) {
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return err;
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}
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err = smbconf_get_includes(ctx, mem_ctx, GLOBAL_NAME,
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num_includes, includes);
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return err;
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}
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sbcErr smbconf_set_includes(struct smbconf_ctx *ctx,
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const char *service,
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uint32_t num_includes, const char **includes)
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{
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return ctx->ops->set_includes(ctx, service, num_includes, includes);
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}
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sbcErr smbconf_set_global_includes(struct smbconf_ctx *ctx,
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uint32_t num_includes,
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const char **includes)
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{
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sbcErr err;
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err = smbconf_global_check(ctx);
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if (!SBC_ERROR_IS_OK(err)) {
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return err;
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}
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err = smbconf_set_includes(ctx, GLOBAL_NAME,
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num_includes, includes);
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return err;
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}
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sbcErr smbconf_delete_includes(struct smbconf_ctx *ctx, const char *service)
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{
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return ctx->ops->delete_includes(ctx, service);
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}
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sbcErr smbconf_delete_global_includes(struct smbconf_ctx *ctx)
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{
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sbcErr err;
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err = smbconf_global_check(ctx);
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if (!SBC_ERROR_IS_OK(err)) {
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return err;
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}
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err = smbconf_delete_includes(ctx, GLOBAL_NAME);
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return err;
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}
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sbcErr smbconf_transaction_start(struct smbconf_ctx *ctx)
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{
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return ctx->ops->transaction_start(ctx);
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}
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sbcErr smbconf_transaction_commit(struct smbconf_ctx *ctx)
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{
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return ctx->ops->transaction_commit(ctx);
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}
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sbcErr smbconf_transaction_cancel(struct smbconf_ctx *ctx)
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{
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return ctx->ops->transaction_cancel(ctx);
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}
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