source: branches/samba-3.5.x/lib/smbconf/smbconf.c@ 1075

Last change on this file since 1075 was 414, checked in by Herwig Bauernfeind, 15 years ago

Samba 3.5.0: Initial import
File size: 9.0 KB
Line 
1/*
2 * Unix SMB/CIFS implementation.
3 * libsmbconf - Samba configuration library
4 * Copyright (C) Michael Adam 2007-2008
5 * Copyright (C) Guenther Deschner 2007
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 3 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, see <http://www.gnu.org/licenses/>.
19 */
20
21#include "includes.h"
22#include "smbconf_private.h"
23
24/**********************************************************************
25 *
26 * internal helper functions
27 *
28 **********************************************************************/
29
30static WERROR smbconf_global_check(struct smbconf_ctx *ctx)
31{
32 if (!smbconf_share_exists(ctx, GLOBAL_NAME)) {
33 return smbconf_create_share(ctx, GLOBAL_NAME);
34 }
35 return WERR_OK;
36}
37
38
39/**********************************************************************
40 *
41 * The actual libsmbconf API functions that are exported.
42 *
43 **********************************************************************/
44
45/**
46 * Tell whether the backend requires messaging to be set up
47 * for the backend to work correctly.
48 */
49bool smbconf_backend_requires_messaging(struct smbconf_ctx *ctx)
50{
51 return ctx->ops->requires_messaging(ctx);
52}
53
54/**
55 * Tell whether the source is writeable.
56 */
57bool smbconf_is_writeable(struct smbconf_ctx *ctx)
58{
59 return ctx->ops->is_writeable(ctx);
60}
61
62/**
63 * Close the configuration.
64 */
65void smbconf_shutdown(struct smbconf_ctx *ctx)
66{
67 talloc_free(ctx);
68}
69
70/**
71 * Detect changes in the configuration.
72 * The given csn struct is filled with the current csn.
73 * smbconf_changed() can also be used for initial retrieval
74 * of the csn.
75 */
76bool smbconf_changed(struct smbconf_ctx *ctx, struct smbconf_csn *csn,
77 const char *service, const char *param)
78{
79 struct smbconf_csn old_csn;
80
81 if (csn == NULL) {
82 return false;
83 }
84
85 old_csn = *csn;
86
87 ctx->ops->get_csn(ctx, csn, service, param);
88 return (csn->csn != old_csn.csn);
89}
90
91/**
92 * Drop the whole configuration (restarting empty).
93 */
94WERROR smbconf_drop(struct smbconf_ctx *ctx)
95{
96 return ctx->ops->drop(ctx);
97}
98
99/**
100 * Get the whole configuration as lists of strings with counts:
101 *
102 * num_shares : number of shares
103 * share_names : list of length num_shares of share names
104 * num_params : list of length num_shares of parameter counts for each share
105 * param_names : list of lists of parameter names for each share
106 * param_values : list of lists of parameter values for each share
107 */
108WERROR smbconf_get_config(struct smbconf_ctx *ctx,
109 TALLOC_CTX *mem_ctx,
110 uint32_t *num_shares,
111 struct smbconf_service ***services)
112{
113 WERROR werr = WERR_OK;
114 TALLOC_CTX *tmp_ctx = NULL;
115 uint32_t tmp_num_shares;
116 char **tmp_share_names;
117 struct smbconf_service **tmp_services;
118 uint32_t count;
119
120 if ((num_shares == NULL) || (services == NULL)) {
121 werr = WERR_INVALID_PARAM;
122 goto done;
123 }
124
125 tmp_ctx = talloc_stackframe();
126
127 werr = smbconf_get_share_names(ctx, tmp_ctx, &tmp_num_shares,
128 &tmp_share_names);
129 if (!W_ERROR_IS_OK(werr)) {
130 goto done;
131 }
132
133 tmp_services = talloc_array(tmp_ctx, struct smbconf_service *,
134 tmp_num_shares);
135
136 if (tmp_services == NULL) {
137 werr = WERR_NOMEM;
138 goto done;
139 }
140
141 for (count = 0; count < tmp_num_shares; count++) {
142 werr = smbconf_get_share(ctx, tmp_services,
143 tmp_share_names[count],
144 &tmp_services[count]);
145 if (!W_ERROR_IS_OK(werr)) {
146 goto done;
147 }
148 }
149
150 werr = WERR_OK;
151
152 *num_shares = tmp_num_shares;
153 if (tmp_num_shares > 0) {
154 *services = talloc_move(mem_ctx, &tmp_services);
155 } else {
156 *services = NULL;
157 }
158
159done:
160 talloc_free(tmp_ctx);
161 return werr;
162}
163
164/**
165 * get the list of share names defined in the configuration.
166 */
167WERROR smbconf_get_share_names(struct smbconf_ctx *ctx,
168 TALLOC_CTX *mem_ctx,
169 uint32_t *num_shares,
170 char ***share_names)
171{
172 return ctx->ops->get_share_names(ctx, mem_ctx, num_shares,
173 share_names);
174}
175
176/**
177 * check if a share/service of a given name exists
178 */
179bool smbconf_share_exists(struct smbconf_ctx *ctx,
180 const char *servicename)
181{
182 return ctx->ops->share_exists(ctx, servicename);
183}
184
185/**
186 * Add a service if it does not already exist.
187 */
188WERROR smbconf_create_share(struct smbconf_ctx *ctx,
189 const char *servicename)
190{
191 if ((servicename != NULL) && smbconf_share_exists(ctx, servicename)) {
192 return WERR_FILE_EXISTS;
193 }
194
195 return ctx->ops->create_share(ctx, servicename);
196}
197
198/**
199 * get a definition of a share (service) from configuration.
200 */
201WERROR smbconf_get_share(struct smbconf_ctx *ctx,
202 TALLOC_CTX *mem_ctx,
203 const char *servicename,
204 struct smbconf_service **service)
205{
206 return ctx->ops->get_share(ctx, mem_ctx, servicename, service);
207}
208
209/**
210 * delete a service from configuration
211 */
212WERROR smbconf_delete_share(struct smbconf_ctx *ctx, const char *servicename)
213{
214 if (!smbconf_share_exists(ctx, servicename)) {
215 return WERR_NO_SUCH_SERVICE;
216 }
217
218 return ctx->ops->delete_share(ctx, servicename);
219}
220
221/**
222 * set a configuration parameter to the value provided.
223 */
224WERROR smbconf_set_parameter(struct smbconf_ctx *ctx,
225 const char *service,
226 const char *param,
227 const char *valstr)
228{
229 return ctx->ops->set_parameter(ctx, service, param, valstr);
230}
231
232/**
233 * Set a global parameter
234 * (i.e. a parameter in the [global] service).
235 *
236 * This also creates [global] when it does not exist.
237 */
238WERROR smbconf_set_global_parameter(struct smbconf_ctx *ctx,
239 const char *param, const char *val)
240{
241 WERROR werr;
242
243 werr = smbconf_global_check(ctx);
244 if (W_ERROR_IS_OK(werr)) {
245 werr = smbconf_set_parameter(ctx, GLOBAL_NAME, param, val);
246 }
247
248 return werr;
249}
250
251/**
252 * get the value of a configuration parameter as a string
253 */
254WERROR smbconf_get_parameter(struct smbconf_ctx *ctx,
255 TALLOC_CTX *mem_ctx,
256 const char *service,
257 const char *param,
258 char **valstr)
259{
260 if (valstr == NULL) {
261 return WERR_INVALID_PARAM;
262 }
263
264 return ctx->ops->get_parameter(ctx, mem_ctx, service, param, valstr);
265}
266
267/**
268 * Get the value of a global parameter.
269 *
270 * Create [global] if it does not exist.
271 */
272WERROR smbconf_get_global_parameter(struct smbconf_ctx *ctx,
273 TALLOC_CTX *mem_ctx,
274 const char *param,
275 char **valstr)
276{
277 WERROR werr;
278
279 werr = smbconf_global_check(ctx);
280 if (W_ERROR_IS_OK(werr)) {
281 werr = smbconf_get_parameter(ctx, mem_ctx, GLOBAL_NAME, param,
282 valstr);
283 }
284
285 return werr;
286}
287
288/**
289 * delete a parameter from configuration
290 */
291WERROR smbconf_delete_parameter(struct smbconf_ctx *ctx,
292 const char *service, const char *param)
293{
294 return ctx->ops->delete_parameter(ctx, service, param);
295}
296
297/**
298 * Delete a global parameter.
299 *
300 * Create [global] if it does not exist.
301 */
302WERROR smbconf_delete_global_parameter(struct smbconf_ctx *ctx,
303 const char *param)
304{
305 WERROR werr;
306
307 werr = smbconf_global_check(ctx);
308 if (W_ERROR_IS_OK(werr)) {
309 werr = smbconf_delete_parameter(ctx, GLOBAL_NAME, param);
310 }
311
312 return werr;
313}
314
315WERROR smbconf_get_includes(struct smbconf_ctx *ctx,
316 TALLOC_CTX *mem_ctx,
317 const char *service,
318 uint32_t *num_includes, char ***includes)
319{
320 return ctx->ops->get_includes(ctx, mem_ctx, service, num_includes,
321 includes);
322}
323
324WERROR smbconf_get_global_includes(struct smbconf_ctx *ctx,
325 TALLOC_CTX *mem_ctx,
326 uint32_t *num_includes, char ***includes)
327{
328 WERROR werr;
329
330 werr = smbconf_global_check(ctx);
331 if (W_ERROR_IS_OK(werr)) {
332 werr = smbconf_get_includes(ctx, mem_ctx, GLOBAL_NAME,
333 num_includes, includes);
334 }
335
336 return werr;
337}
338
339WERROR smbconf_set_includes(struct smbconf_ctx *ctx,
340 const char *service,
341 uint32_t num_includes, const char **includes)
342{
343 return ctx->ops->set_includes(ctx, service, num_includes, includes);
344}
345
346WERROR smbconf_set_global_includes(struct smbconf_ctx *ctx,
347 uint32_t num_includes,
348 const char **includes)
349{
350 WERROR werr;
351
352 werr = smbconf_global_check(ctx);
353 if (W_ERROR_IS_OK(werr)) {
354 werr = smbconf_set_includes(ctx, GLOBAL_NAME,
355 num_includes, includes);
356 }
357
358 return werr;
359}
360
361
362WERROR smbconf_delete_includes(struct smbconf_ctx *ctx, const char *service)
363{
364 return ctx->ops->delete_includes(ctx, service);
365}
366
367WERROR smbconf_delete_global_includes(struct smbconf_ctx *ctx)
368{
369 WERROR werr;
370
371 werr = smbconf_global_check(ctx);
372 if (W_ERROR_IS_OK(werr)) {
373 werr = smbconf_delete_includes(ctx, GLOBAL_NAME);
374 }
375
376 return werr;
377}
378
379WERROR smbconf_transaction_start(struct smbconf_ctx *ctx)
380{
381 return ctx->ops->transaction_start(ctx);
382}
383
384WERROR smbconf_transaction_commit(struct smbconf_ctx *ctx)
385{
386 return ctx->ops->transaction_commit(ctx);
387}
388
389WERROR smbconf_transaction_cancel(struct smbconf_ctx *ctx)
390{
391 return ctx->ops->transaction_cancel(ctx);
392}
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