source3/lib/netapi/netapi.c

   1 /*
   2  *  Unix SMB/CIFS implementation.
   3  *  NetApi Support
   4  *  Copyright (C) Guenther Deschner 2007-2008
   5  *
   6  *  This program is free software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation; either version 3 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #include "includes.h"
  21 #include "lib/netapi/netapi.h"
  22 #include "lib/netapi/netapi_private.h"
  23
  24 extern bool AllowDebugChange;
  25
  26 struct libnetapi_ctx *stat_ctx = NULL;
  27 TALLOC_CTX *frame = NULL;
  28 static bool libnetapi_initialized = false;
  29
  30 /****************************************************************
  31 ****************************************************************/
  32
  33 static NET_API_STATUS libnetapi_init_private_context(struct libnetapi_ctx *ctx)
  34 {
  35         struct libnetapi_private_ctx *priv;
  36
  37         if (!ctx) {
  38                 return W_ERROR_V(WERR_INVALID_PARAM);
  39         }
  40
  41         priv = TALLOC_ZERO_P(ctx, struct libnetapi_private_ctx);
  42         if (!priv) {
  43                 return W_ERROR_V(WERR_NOMEM);
  44         }
  45
  46         ctx->private_data = priv;
  47
  48         return NET_API_STATUS_SUCCESS;
  49 }
  50
  51 /****************************************************************
  52 ****************************************************************/
  53
  54 NET_API_STATUS libnetapi_init(struct libnetapi_ctx **context)
  55 {
  56         NET_API_STATUS status;
  57         struct libnetapi_ctx *ctx = NULL;
  58         char *krb5_cc_env = NULL;
  59
  60         if (stat_ctx && libnetapi_initialized) {
  61                 *context = stat_ctx;
  62                 return NET_API_STATUS_SUCCESS;
  63         }
  64
  65 #if 0
  66         talloc_enable_leak_report();
  67 #endif
  68         frame = talloc_stackframe();
  69
  70         ctx = talloc_zero(frame, struct libnetapi_ctx);
  71         if (!ctx) {
  72                 TALLOC_FREE(frame);
  73                 return W_ERROR_V(WERR_NOMEM);
  74         }
  75
  76         if (!DEBUGLEVEL) {
  77                 DEBUGLEVEL = 0;
  78         }
  79
  80         /* prevent setup_logging() from closing x_stderr... */
  81         dbf = 0;
  82         setup_logging("libnetapi", true);
  83
  84         dbf = x_stderr;
  85         x_setbuf(x_stderr, NULL);
  86         AllowDebugChange = false;
  87
  88         load_case_tables();
  89
  90         if (!lp_load(get_dyn_CONFIGFILE(), true, false, false, false)) {
  91                 TALLOC_FREE(frame);
  92                 fprintf(stderr, "error loading %s\n", get_dyn_CONFIGFILE() );
  93                 return W_ERROR_V(WERR_GENERAL_FAILURE);
  94         }
  95
  96         AllowDebugChange = true;
  97
  98         init_names();
  99         load_interfaces();
 100         reopen_logs();
 101
 102         BlockSignals(True, SIGPIPE);
 103
 104         krb5_cc_env = getenv(KRB5_ENV_CCNAME);
 105         if (!krb5_cc_env || (strlen(krb5_cc_env) == 0)) {
 106                 ctx->krb5_cc_env = talloc_strdup(frame, "MEMORY:libnetapi");
 107                 setenv(KRB5_ENV_CCNAME, ctx->krb5_cc_env, 1);
 108         }
 109
 110         if (getenv("USER")) {
 111                 ctx->username = talloc_strdup(frame, getenv("USER"));
 112         } else {
 113                 ctx->username = talloc_strdup(frame, "");
 114         }
 115         if (!ctx->username) {
 116                 TALLOC_FREE(frame);
 117                 fprintf(stderr, "libnetapi_init: out of memory\n");
 118                 return W_ERROR_V(WERR_NOMEM);
 119         }
 120
 121         status = libnetapi_init_private_context(ctx);
 122         if (status != 0) {
 123                 TALLOC_FREE(frame);
 124                 return status;
 125         }
 126
 127         libnetapi_initialized = true;
 128
 129         *context = stat_ctx = ctx;
 130
 131         return NET_API_STATUS_SUCCESS;
 132 }
 133
 134 /****************************************************************
 135 ****************************************************************/
 136
 137 NET_API_STATUS libnetapi_getctx(struct libnetapi_ctx **ctx)
 138 {
 139         if (stat_ctx) {
 140                 *ctx = stat_ctx;
 141                 return NET_API_STATUS_SUCCESS;
 142         }
 143
 144         return libnetapi_init(ctx);
 145 }
 146
 147 /****************************************************************
 148 ****************************************************************/
 149
 150 NET_API_STATUS libnetapi_free(struct libnetapi_ctx *ctx)
 151 {
 152         if (!ctx) {
 153                 return NET_API_STATUS_SUCCESS;
 154         }
 155
 156         libnetapi_samr_free(ctx);
 157
 158         libnetapi_shutdown_cm(ctx);
 159
 160         if (ctx->krb5_cc_env) {
 161                 char *env = getenv(KRB5_ENV_CCNAME);
 162                 if (env && (strequal(ctx->krb5_cc_env, env))) {
 163                         unsetenv(KRB5_ENV_CCNAME);
 164                 }
 165         }
 166
 167         gfree_names();
 168         gfree_loadparm();
 169         gfree_case_tables();
 170         gfree_charcnv();
 171         gfree_interfaces();
 172
 173         secrets_shutdown();
 174
 175         TALLOC_FREE(ctx);
 176         TALLOC_FREE(frame);
 177
 178         gfree_debugsyms();
 179
 180         return NET_API_STATUS_SUCCESS;
 181 }
 182
 183 /****************************************************************
 184 ****************************************************************/
 185
 186 NET_API_STATUS libnetapi_set_debuglevel(struct libnetapi_ctx *ctx,
 187                                         const char *debuglevel)
 188 {
 189         AllowDebugChange = true;
 190         ctx->debuglevel = talloc_strdup(ctx, debuglevel);
 191         if (!debug_parse_levels(debuglevel)) {
 192                 return W_ERROR_V(WERR_GENERAL_FAILURE);
 193         }
 194         return NET_API_STATUS_SUCCESS;
 195 }
 196
 197 /****************************************************************
 198 ****************************************************************/
 199
 200 NET_API_STATUS libnetapi_get_debuglevel(struct libnetapi_ctx *ctx,
 201                                         char **debuglevel)
 202 {
 203         *debuglevel = ctx->debuglevel;
 204         return NET_API_STATUS_SUCCESS;
 205 }
 206
 207 /****************************************************************
 208 ****************************************************************/
 209
 210 NET_API_STATUS libnetapi_set_username(struct libnetapi_ctx *ctx,
 211                                       const char *username)
 212 {
 213         TALLOC_FREE(ctx->username);
 214         ctx->username = talloc_strdup(ctx, username ? username : "");
 215
 216         if (!ctx->username) {
 217                 return W_ERROR_V(WERR_NOMEM);
 218         }
 219         return NET_API_STATUS_SUCCESS;
 220 }
 221
 222 NET_API_STATUS libnetapi_set_password(struct libnetapi_ctx *ctx,
 223                                       const char *password)
 224 {
 225         TALLOC_FREE(ctx->password);
 226         ctx->password = talloc_strdup(ctx, password);
 227         if (!ctx->password) {
 228                 return W_ERROR_V(WERR_NOMEM);
 229         }
 230         return NET_API_STATUS_SUCCESS;
 231 }
 232
 233 NET_API_STATUS libnetapi_set_workgroup(struct libnetapi_ctx *ctx,
 234                                        const char *workgroup)
 235 {
 236         TALLOC_FREE(ctx->workgroup);
 237         ctx->workgroup = talloc_strdup(ctx, workgroup);
 238         if (!ctx->workgroup) {
 239                 return W_ERROR_V(WERR_NOMEM);
 240         }
 241         return NET_API_STATUS_SUCCESS;
 242 }
 243
 244 /****************************************************************
 245 ****************************************************************/
 246
 247 NET_API_STATUS libnetapi_set_use_kerberos(struct libnetapi_ctx *ctx)
 248 {
 249         ctx->use_kerberos = true;
 250         return NET_API_STATUS_SUCCESS;
 251 }
 252
 253 NET_API_STATUS libnetapi_set_use_ccache(struct libnetapi_ctx *ctx)
 254 {
 255         ctx->use_ccache = true;
 256         return NET_API_STATUS_SUCCESS;
 257 }
 258
 259 /****************************************************************
 260 ****************************************************************/
 261
 262 const char *libnetapi_errstr(NET_API_STATUS status)
 263 {
 264         if (status & 0xc0000000) {
 265                 return get_friendly_nt_error_msg(NT_STATUS(status));
 266         }
 267
 268         return get_friendly_werror_msg(W_ERROR(status));
 269 }
 270
 271 /****************************************************************
 272 ****************************************************************/
 273
 274 NET_API_STATUS libnetapi_set_error_string(struct libnetapi_ctx *ctx,
 275                                           const char *format, ...)
 276 {
 277         va_list args;
 278
 279         TALLOC_FREE(ctx->error_string);
 280
 281         va_start(args, format);
 282         ctx->error_string = talloc_vasprintf(ctx, format, args);
 283         va_end(args);
 284
 285         if (!ctx->error_string) {
 286                 return W_ERROR_V(WERR_NOMEM);
 287         }
 288         return NET_API_STATUS_SUCCESS;
 289 }
 290
 291 /****************************************************************
 292 ****************************************************************/
 293
 294 const char *libnetapi_get_error_string(struct libnetapi_ctx *ctx,
 295                                        NET_API_STATUS status_in)
 296 {
 297         NET_API_STATUS status;
 298         struct libnetapi_ctx *tmp_ctx = ctx;
 299
 300         if (!tmp_ctx) {
 301                 status = libnetapi_getctx(&tmp_ctx);
 302                 if (status != 0) {
 303                         return NULL;
 304                 }
 305         }
 306
 307         if (tmp_ctx->error_string) {
 308                 return tmp_ctx->error_string;
 309         }
 310
 311         return libnetapi_errstr(status_in);
 312 }
 313
 314 /****************************************************************
 315 ****************************************************************/
 316
 317 NET_API_STATUS NetApiBufferAllocate(uint32_t byte_count,
 318                                     void **buffer)
 319 {
 320         void *buf = NULL;
 321
 322         if (!buffer) {
 323                 return W_ERROR_V(WERR_INSUFFICIENT_BUFFER);
 324         }
 325
 326         if (byte_count == 0) {
 327                 goto done;
 328         }
 329
 330         buf = talloc_size(NULL, byte_count);
 331         if (!buf) {
 332                 return W_ERROR_V(WERR_NOMEM);
 333         }
 334
 335  done:
 336         *buffer = buf;
 337
 338         return NET_API_STATUS_SUCCESS;
 339 }
 340
 341 /****************************************************************
 342 ****************************************************************/
 343
 344 NET_API_STATUS NetApiBufferFree(void *buffer)
 345 {
 346         if (!buffer) {
 347                 return W_ERROR_V(WERR_INSUFFICIENT_BUFFER);
 348         }
 349
 350         talloc_free(buffer);
 351
 352         return NET_API_STATUS_SUCCESS;
 353 }