r17206: Add a modular API for share configuration.

Commit the classic backwards compatible module which is the default one
(This used to be commit a89cc346b9296cb49929898d257a064a6c2bae86)

1 files changed, 137 insertions, 0 deletions

diff --git a/source4/param/share.c b/source4/param/share.c
new file mode 100644
index 00000000000..a87fe38f8e1
--- /dev/null
+++ b/source4/param/share.c
@@ -0,0 +1,137 @@
+/* 
+   Unix SMB/CIFS implementation.
+   
+   Modular services configuration system
+   
+   Copyright (C) Simo Sorce	2006
+   
+   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 "param/share.h"
+#include "build.h"
+
+const char *share_string_option(struct share_config *scfg, const char *opt_name, const char *defval)
+{
+	return scfg->ctx->ops->string_option(scfg, opt_name, defval);
+}
+
+int share_int_option(struct share_config *scfg, const char *opt_name, int defval)
+{
+	return scfg->ctx->ops->int_option(scfg, opt_name, defval);
+}
+
+BOOL share_bool_option(struct share_config *scfg, const char *opt_name, BOOL defval)
+{
+	return scfg->ctx->ops->bool_option(scfg, opt_name, defval);
+}
+
+const char **share_string_list_option(TALLOC_CTX *mem_ctx, struct share_config *scfg, const char *opt_name)
+{
+	return scfg->ctx->ops->string_list_option(mem_ctx, scfg, opt_name);
+}
+
+NTSTATUS share_list_all(TALLOC_CTX *mem_ctx, struct share_context *sctx, int *count, const char ***names)
+{
+	return sctx->ops->list_all(mem_ctx, sctx, count, names);
+}
+
+NTSTATUS share_get_config(TALLOC_CTX *mem_ctx, struct share_context *sctx, const char *name, struct share_config **scfg)
+{
+	return sctx->ops->get_config(mem_ctx, sctx, name, scfg);
+}
+
+/* List of currently available share backends */
+static struct share_ops **backends = NULL;
+
+static const struct share_ops *share_backend_by_name(const char *name)
+{
+	int i;
+
+	for (i = 0; backends && backends[i]; i++) {
+		if (strcmp(backends[i]->name, name) == 0) {
+			return backends[i];
+		}
+	}
+
+	return NULL;
+}
+
+/*
+  Register the share backend
+*/
+NTSTATUS share_register(const struct share_ops *ops)
+{
+	int i;
+
+	if (share_backend_by_name(ops->name) != NULL) {
+		DEBUG(0,("SHARE backend [%s] already registered\n", ops->name));
+		return NT_STATUS_OBJECT_NAME_COLLISION;
+	}
+
+	i = 0;
+	while (backends && backends[i]) {
+		i++;
+	}
+
+	backends = realloc_p(backends, struct share_ops *, i + 2);
+	if (!backends) {
+		smb_panic("out of memory in share_register");
+	}
+
+	backends[i] = malloc(sizeof(struct share_ops));
+	if (!backends[i]) {
+		smb_panic("out of memory in share_register");
+	}
+
+	backends[i] = smb_xmemdup(ops, sizeof(*ops));
+	backends[i]->name = smb_xstrdup(ops->name);
+
+	backends[i + 1] = NULL;
+
+	DEBUG(3, ("SHARE backend [%s] registered.\n", ops->name));
+
+	return NT_STATUS_OK;
+}
+
+NTSTATUS share_get_context(TALLOC_CTX *mem_ctx, struct share_context **ctx)
+{
+	const struct share_ops *ops;
+
+	ops = share_backend_by_name(lp_share_backend());
+	if (!ops) {
+		DEBUG(0, ("share_init_connection: share backend [%s] not found!\n", lp_share_backend()));
+		return NT_STATUS_INTERNAL_ERROR;
+	}
+
+	return ops->init(mem_ctx, ops, ctx);
+}
+
+/*
+  initialise the SHARE subsystem
+*/
+NTSTATUS share_init(void)
+{
+	init_module_fn static_init[] = STATIC_share_MODULES;
+	init_module_fn *shared_init = load_samba_modules(NULL, "share");
+
+	run_init_functions(static_init);
+	run_init_functions(shared_init);
+
+	talloc_free(shared_init);
+
+	return NT_STATUS_OK;
+}