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-rw-r--r--lib/smbconf/smbconf.c511
1 files changed, 511 insertions, 0 deletions
diff --git a/lib/smbconf/smbconf.c b/lib/smbconf/smbconf.c
new file mode 100644
index 0000000..4129ea5
--- /dev/null
+++ b/lib/smbconf/smbconf.c
@@ -0,0 +1,511 @@
+/*
+ * Unix SMB/CIFS implementation.
+ * libsmbconf - Samba configuration library
+ * Copyright (C) Michael Adam 2007-2008
+ * Copyright (C) Guenther Deschner 2007
+ *
+ * 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"
+#include "smbconf_private.h"
+
+/**********************************************************************
+ *
+ * internal helper functions
+ *
+ **********************************************************************/
+
+static sbcErr smbconf_global_check(struct smbconf_ctx *ctx)
+{
+ if (!smbconf_share_exists(ctx, GLOBAL_NAME)) {
+ return smbconf_create_share(ctx, GLOBAL_NAME);
+ }
+
+ return SBC_ERR_OK;
+}
+
+
+/**********************************************************************
+ *
+ * The actual libsmbconf API functions that are exported.
+ *
+ **********************************************************************/
+
+const char *sbcErrorString(sbcErr error)
+{
+ switch (error) {
+ case SBC_ERR_OK:
+ return "SBC_ERR_OK";
+ case SBC_ERR_NOT_IMPLEMENTED:
+ return "SBC_ERR_NOT_IMPLEMENTED";
+ case SBC_ERR_NOT_SUPPORTED:
+ return "SBC_ERR_NOT_SUPPORTED";
+ case SBC_ERR_UNKNOWN_FAILURE:
+ return "SBC_ERR_UNKNOWN_FAILURE";
+ case SBC_ERR_NOMEM:
+ return "SBC_ERR_NOMEM";
+ case SBC_ERR_INVALID_PARAM:
+ return "SBC_ERR_INVALID_PARAM";
+ case SBC_ERR_BADFILE:
+ return "SBC_ERR_BADFILE";
+ case SBC_ERR_NO_SUCH_SERVICE:
+ return "SBC_ERR_NO_SUCH_SERVICE";
+ case SBC_ERR_IO_FAILURE:
+ return "SBC_ERR_IO_FAILURE";
+ case SBC_ERR_CAN_NOT_COMPLETE:
+ return "SBC_ERR_CAN_NOT_COMPLETE";
+ case SBC_ERR_NO_MORE_ITEMS:
+ return "SBC_ERR_NO_MORE_ITEMS";
+ case SBC_ERR_FILE_EXISTS:
+ return "SBC_ERR_FILE_EXISTS";
+ case SBC_ERR_ACCESS_DENIED:
+ return "SBC_ERR_ACCESS_DENIED";
+ }
+
+ return "unknown sbcErr value";
+}
+
+
+/**
+ * Tell whether the backend requires messaging to be set up
+ * for the backend to work correctly.
+ */
+bool smbconf_backend_requires_messaging(struct smbconf_ctx *ctx)
+{
+ return ctx->ops->requires_messaging(ctx);
+}
+
+/**
+ * Tell whether the source is writeable.
+ */
+bool smbconf_is_writeable(struct smbconf_ctx *ctx)
+{
+ return ctx->ops->is_writeable(ctx);
+}
+
+/**
+ * Close the configuration.
+ */
+void smbconf_shutdown(struct smbconf_ctx *ctx)
+{
+ talloc_free(ctx);
+}
+
+/**
+ * Detect changes in the configuration.
+ * The given csn struct is filled with the current csn.
+ * smbconf_changed() can also be used for initial retrieval
+ * of the csn.
+ */
+bool smbconf_changed(struct smbconf_ctx *ctx, struct smbconf_csn *csn,
+ const char *service, const char *param)
+{
+ struct smbconf_csn old_csn;
+
+ if (csn == NULL) {
+ return false;
+ }
+
+ old_csn = *csn;
+
+ ctx->ops->get_csn(ctx, csn, service, param);
+ return (csn->csn != old_csn.csn);
+}
+
+/**
+ * Drop the whole configuration (restarting empty).
+ */
+sbcErr smbconf_drop(struct smbconf_ctx *ctx)
+{
+ return ctx->ops->drop(ctx);
+}
+
+/**
+ * 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
+ */
+sbcErr smbconf_get_config(struct smbconf_ctx *ctx,
+ TALLOC_CTX *mem_ctx,
+ uint32_t *num_shares,
+ struct smbconf_service ***services)
+{
+ sbcErr err;
+ TALLOC_CTX *tmp_ctx = NULL;
+ uint32_t tmp_num_shares;
+ char **tmp_share_names;
+ struct smbconf_service **tmp_services;
+ uint32_t count;
+
+ if ((num_shares == NULL) || (services == NULL)) {
+ err = SBC_ERR_INVALID_PARAM;
+ goto done;
+ }
+
+ tmp_ctx = talloc_stackframe();
+
+ err = smbconf_get_share_names(ctx, tmp_ctx, &tmp_num_shares,
+ &tmp_share_names);
+ if (!SBC_ERROR_IS_OK(err)) {
+ goto done;
+ }
+
+ tmp_services = talloc_array(tmp_ctx, struct smbconf_service *,
+ tmp_num_shares);
+ if (tmp_services == NULL) {
+ err = SBC_ERR_NOMEM;
+ goto done;
+ }
+
+ for (count = 0; count < tmp_num_shares; count++) {
+ err = smbconf_get_share(ctx, tmp_services,
+ tmp_share_names[count],
+ &tmp_services[count]);
+ if (!SBC_ERROR_IS_OK(err)) {
+ goto done;
+ }
+ }
+
+ err = SBC_ERR_OK;
+
+ *num_shares = tmp_num_shares;
+ if (tmp_num_shares > 0) {
+ *services = talloc_move(mem_ctx, &tmp_services);
+ } else {
+ *services = NULL;
+ }
+
+done:
+ talloc_free(tmp_ctx);
+ return err;
+}
+
+/**
+ * get the list of share names defined in the configuration.
+ */
+sbcErr smbconf_get_share_names(struct smbconf_ctx *ctx,
+ TALLOC_CTX *mem_ctx,
+ uint32_t *num_shares,
+ char ***share_names)
+{
+ return ctx->ops->get_share_names(ctx, mem_ctx, num_shares,
+ share_names);
+}
+
+/**
+ * check if a share/service of a given name exists
+ */
+bool smbconf_share_exists(struct smbconf_ctx *ctx,
+ const char *servicename)
+{
+ return ctx->ops->share_exists(ctx, servicename);
+}
+
+/**
+ * Add a service if it does not already exist.
+ */
+sbcErr smbconf_create_share(struct smbconf_ctx *ctx,
+ const char *servicename)
+{
+ if ((servicename != NULL) && smbconf_share_exists(ctx, servicename)) {
+ return SBC_ERR_FILE_EXISTS;
+ }
+
+ return ctx->ops->create_share(ctx, servicename);
+}
+
+/**
+ * create and set the definition for a new share (service).
+ */
+sbcErr smbconf_create_set_share(struct smbconf_ctx *ctx,
+ struct smbconf_service *service)
+{
+ sbcErr err, err2;
+ int i;
+ uint32_t num_includes = 0;
+ char **includes = NULL;
+ TALLOC_CTX *tmp_ctx = NULL;
+
+ if ((service->name != NULL) && smbconf_share_exists(ctx, service->name))
+ {
+ return SBC_ERR_FILE_EXISTS;
+ }
+
+ err = smbconf_transaction_start(ctx);
+ if (!SBC_ERROR_IS_OK(err)) {
+ return err;
+ }
+
+ tmp_ctx = talloc_stackframe();
+
+ err = smbconf_create_share(ctx, service->name);
+ if (!SBC_ERROR_IS_OK(err)) {
+ goto cancel;
+ }
+
+ for (i = 0; i < service->num_params; i++) {
+ if (strequal(service->param_names[i], "include")) {
+ includes = talloc_realloc(tmp_ctx, includes, char *,
+ num_includes+1);
+ if (includes == NULL) {
+ err = SBC_ERR_NOMEM;
+ goto cancel;
+ }
+ includes[num_includes] = talloc_strdup(includes,
+ service->param_values[i]);
+ if (includes[num_includes] == NULL) {
+ err = SBC_ERR_NOMEM;
+ goto cancel;
+ }
+ num_includes++;
+ } else {
+ err = smbconf_set_parameter(ctx,
+ service->name,
+ service->param_names[i],
+ service->param_values[i]);
+ if (!SBC_ERROR_IS_OK(err)) {
+ goto cancel;
+ }
+ }
+ }
+
+ err = smbconf_set_includes(ctx, service->name, num_includes,
+ discard_const_p(const char *, includes));
+ if (!SBC_ERROR_IS_OK(err)) {
+ goto cancel;
+ }
+
+ err = smbconf_transaction_commit(ctx);
+
+ goto done;
+
+cancel:
+ err2 = smbconf_transaction_cancel(ctx);
+ if (!SBC_ERROR_IS_OK(err2)) {
+ DEBUG(5, (__location__ ": Error cancelling transaction: %s\n",
+ sbcErrorString(err2)));
+ }
+
+done:
+ talloc_free(tmp_ctx);
+ return err;
+}
+
+/**
+ * get a definition of a share (service) from configuration.
+ */
+sbcErr smbconf_get_share(struct smbconf_ctx *ctx,
+ TALLOC_CTX *mem_ctx,
+ const char *servicename,
+ struct smbconf_service **service)
+{
+ return ctx->ops->get_share(ctx, mem_ctx, servicename, service);
+}
+
+/**
+ * delete a service from configuration
+ */
+sbcErr smbconf_delete_share(struct smbconf_ctx *ctx, const char *servicename)
+{
+ if (!smbconf_share_exists(ctx, servicename)) {
+ return SBC_ERR_NO_SUCH_SERVICE;
+ }
+
+ return ctx->ops->delete_share(ctx, servicename);
+}
+
+/**
+ * set a configuration parameter to the value provided.
+ */
+sbcErr smbconf_set_parameter(struct smbconf_ctx *ctx,
+ const char *service,
+ const char *param,
+ const char *valstr)
+{
+ return ctx->ops->set_parameter(ctx, service, param, valstr);
+}
+
+/**
+ * Set a global parameter
+ * (i.e. a parameter in the [global] service).
+ *
+ * This also creates [global] when it does not exist.
+ */
+sbcErr smbconf_set_global_parameter(struct smbconf_ctx *ctx,
+ const char *param, const char *val)
+{
+ sbcErr err;
+
+ err = smbconf_global_check(ctx);
+ if (!SBC_ERROR_IS_OK(err)) {
+ return err;
+ }
+ err = smbconf_set_parameter(ctx, GLOBAL_NAME, param, val);
+
+ return err;
+}
+
+/**
+ * get the value of a configuration parameter as a string
+ */
+sbcErr smbconf_get_parameter(struct smbconf_ctx *ctx,
+ TALLOC_CTX *mem_ctx,
+ const char *service,
+ const char *param,
+ char **valstr)
+{
+ if (valstr == NULL) {
+ return SBC_ERR_INVALID_PARAM;
+ }
+
+ return ctx->ops->get_parameter(ctx, mem_ctx, service, param, valstr);
+}
+
+/**
+ * Get the value of a global parameter.
+ *
+ * Create [global] if it does not exist.
+ */
+sbcErr smbconf_get_global_parameter(struct smbconf_ctx *ctx,
+ TALLOC_CTX *mem_ctx,
+ const char *param,
+ char **valstr)
+{
+ sbcErr err;
+
+ err = smbconf_global_check(ctx);
+ if (!SBC_ERROR_IS_OK(err)) {
+ return err;
+ }
+
+ err = smbconf_get_parameter(ctx, mem_ctx, GLOBAL_NAME, param,
+ valstr);
+
+ return err;
+}
+
+/**
+ * delete a parameter from configuration
+ */
+sbcErr smbconf_delete_parameter(struct smbconf_ctx *ctx,
+ const char *service, const char *param)
+{
+ return ctx->ops->delete_parameter(ctx, service, param);
+}
+
+/**
+ * Delete a global parameter.
+ *
+ * Create [global] if it does not exist.
+ */
+sbcErr smbconf_delete_global_parameter(struct smbconf_ctx *ctx,
+ const char *param)
+{
+ sbcErr err;
+
+ err = smbconf_global_check(ctx);
+ if (!SBC_ERROR_IS_OK(err)) {
+ return err;
+ }
+ err = smbconf_delete_parameter(ctx, GLOBAL_NAME, param);
+
+ return err;
+}
+
+sbcErr smbconf_get_includes(struct smbconf_ctx *ctx,
+ TALLOC_CTX *mem_ctx,
+ const char *service,
+ uint32_t *num_includes, char ***includes)
+{
+ return ctx->ops->get_includes(ctx, mem_ctx, service, num_includes,
+ includes);
+}
+
+sbcErr smbconf_get_global_includes(struct smbconf_ctx *ctx,
+ TALLOC_CTX *mem_ctx,
+ uint32_t *num_includes, char ***includes)
+{
+ sbcErr err;
+
+ err = smbconf_global_check(ctx);
+ if (!SBC_ERROR_IS_OK(err)) {
+ return err;
+ }
+ err = smbconf_get_includes(ctx, mem_ctx, GLOBAL_NAME,
+ num_includes, includes);
+
+ return err;
+}
+
+sbcErr smbconf_set_includes(struct smbconf_ctx *ctx,
+ const char *service,
+ uint32_t num_includes, const char **includes)
+{
+ return ctx->ops->set_includes(ctx, service, num_includes, includes);
+}
+
+sbcErr smbconf_set_global_includes(struct smbconf_ctx *ctx,
+ uint32_t num_includes,
+ const char **includes)
+{
+ sbcErr err;
+
+ err = smbconf_global_check(ctx);
+ if (!SBC_ERROR_IS_OK(err)) {
+ return err;
+ }
+ err = smbconf_set_includes(ctx, GLOBAL_NAME,
+ num_includes, includes);
+
+ return err;
+}
+
+
+sbcErr smbconf_delete_includes(struct smbconf_ctx *ctx, const char *service)
+{
+ return ctx->ops->delete_includes(ctx, service);
+}
+
+sbcErr smbconf_delete_global_includes(struct smbconf_ctx *ctx)
+{
+ sbcErr err;
+
+ err = smbconf_global_check(ctx);
+ if (!SBC_ERROR_IS_OK(err)) {
+ return err;
+ }
+ err = smbconf_delete_includes(ctx, GLOBAL_NAME);
+
+ return err;
+}
+
+sbcErr smbconf_transaction_start(struct smbconf_ctx *ctx)
+{
+ return ctx->ops->transaction_start(ctx);
+}
+
+sbcErr smbconf_transaction_commit(struct smbconf_ctx *ctx)
+{
+ return ctx->ops->transaction_commit(ctx);
+}
+
+sbcErr smbconf_transaction_cancel(struct smbconf_ctx *ctx)
+{
+ return ctx->ops->transaction_cancel(ctx);
+}