1/*
2   Unix SMB/CIFS implementation.
3
4   Modular shares configuration system
5
6   Copyright (C) Simo Sorce	2006
7
8   This program is free software; you can redistribute it and/or modify
9   it under the terms of the GNU General Public License as published by
10   the Free Software Foundation; either version 3 of the License, or
11   (at your option) any later version.
12
13   This program is distributed in the hope that it will be useful,
14   but WITHOUT ANY WARRANTY; without even the implied warranty of
15   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16   GNU General Public License for more details.
17
18   You should have received a copy of the GNU General Public License
19   along with this program.  If not, see <http://www.gnu.org/licenses/>.
20*/
21
22#include "includes.h"
23#include "param/share.h"
24#include "param/param.h"
25
26const char *share_string_option(struct share_config *scfg, const char *opt_name, const char *defval)
27{
28	return scfg->ctx->ops->string_option(scfg, opt_name, defval);
29}
30
31int share_int_option(struct share_config *scfg, const char *opt_name, int defval)
32{
33	return scfg->ctx->ops->int_option(scfg, opt_name, defval);
34}
35
36bool share_bool_option(struct share_config *scfg, const char *opt_name, bool defval)
37{
38	return scfg->ctx->ops->bool_option(scfg, opt_name, defval);
39}
40
41const char **share_string_list_option(TALLOC_CTX *mem_ctx, struct share_config *scfg, const char *opt_name)
42{
43	return scfg->ctx->ops->string_list_option(mem_ctx, scfg, opt_name);
44}
45
46NTSTATUS share_list_all(TALLOC_CTX *mem_ctx, struct share_context *sctx, int *count, const char ***names)
47{
48	return sctx->ops->list_all(mem_ctx, sctx, count, names);
49}
50
51NTSTATUS share_get_config(TALLOC_CTX *mem_ctx, struct share_context *sctx, const char *name, struct share_config **scfg)
52{
53	return sctx->ops->get_config(mem_ctx, sctx, name, scfg);
54}
55
56NTSTATUS share_create(struct share_context *sctx, const char *name, struct share_info *info, int count)
57{
58	if (sctx->ops->create) {
59		return sctx->ops->create(sctx, name, info, count);
60	}
61	return NT_STATUS_NOT_IMPLEMENTED;
62}
63
64NTSTATUS share_set(struct share_context *sctx, const char *name, struct share_info *info, int count)
65{
66	if (sctx->ops->set) {
67		return sctx->ops->set(sctx, name, info, count);
68	}
69	return NT_STATUS_NOT_IMPLEMENTED;
70}
71
72NTSTATUS share_remove(struct share_context *sctx, const char *name)
73{
74	if (sctx->ops->remove) {
75		return sctx->ops->remove(sctx, name);
76	}
77	return NT_STATUS_NOT_IMPLEMENTED;
78}
79
80/* List of currently available share backends */
81static struct share_ops **backends = NULL;
82
83static const struct share_ops *share_backend_by_name(const char *name)
84{
85	int i;
86
87	for (i = 0; backends && backends[i]; i++) {
88		if (strcmp(backends[i]->name, name) == 0) {
89			return backends[i];
90		}
91	}
92
93	return NULL;
94}
95
96/*
97  Register the share backend
98*/
99NTSTATUS share_register(const struct share_ops *ops)
100{
101	int i;
102
103	if (share_backend_by_name(ops->name) != NULL) {
104		DEBUG(0,("SHARE backend [%s] already registered\n", ops->name));
105		return NT_STATUS_OBJECT_NAME_COLLISION;
106	}
107
108	i = 0;
109	while (backends && backends[i]) {
110		i++;
111	}
112
113	backends = realloc_p(backends, struct share_ops *, i + 2);
114	if (!backends) {
115		smb_panic("out of memory in share_register");
116	}
117
118	backends[i] = (struct share_ops *)smb_xmemdup(ops, sizeof(*ops));
119	backends[i]->name = smb_xstrdup(ops->name);
120
121	backends[i + 1] = NULL;
122
123	DEBUG(3, ("SHARE backend [%s] registered.\n", ops->name));
124
125	return NT_STATUS_OK;
126}
127
128NTSTATUS share_get_context_by_name(TALLOC_CTX *mem_ctx, const char *backend_name,
129				   struct tevent_context *event_ctx,
130				   struct loadparm_context *lp_ctx,
131				   struct share_context **ctx)
132{
133	const struct share_ops *ops;
134
135	ops = share_backend_by_name(backend_name);
136	if (!ops) {
137		DEBUG(0, ("share_init_connection: share backend [%s] not found!\n", backend_name));
138		return NT_STATUS_INTERNAL_ERROR;
139	}
140
141	return ops->init(mem_ctx, ops, event_ctx, lp_ctx, ctx);
142}
143
144/*
145  initialise the SHARE subsystem
146*/
147NTSTATUS share_init(void)
148{
149	extern NTSTATUS share_ldb_init(void);
150	extern NTSTATUS share_classic_init(void);
151	init_module_fn static_init[] = { STATIC_share_MODULES };
152
153	run_init_functions(static_init);
154
155	return NT_STATUS_OK;
156}
157