source/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 NET_API_STATUS libnetapi_init(struct libnetapi_ctx **context)
  34 {
  35         struct libnetapi_ctx *ctx = NULL;
  36         char *krb5_cc_env = NULL;
  37
  38         if (stat_ctx && libnetapi_initialized) {
  39                 *context = stat_ctx;
  40                 return NET_API_STATUS_SUCCESS;
  41         }
  42
  43 #if 0
  44         talloc_enable_leak_report();
  45 #endif
  46         frame = talloc_stackframe();
  47
  48         ctx = talloc_zero(frame, struct libnetapi_ctx);
  49         if (!ctx) {
  50                 TALLOC_FREE(frame);
  51                 return W_ERROR_V(WERR_NOMEM);
  52         }
  53
  54         if (!DEBUGLEVEL) {
  55                 DEBUGLEVEL = 0;
  56         }
  57
  58         /* prevent setup_logging() from closing x_stderr... */
  59         dbf = 0;
  60         setup_logging("libnetapi", true);
  61
  62         dbf = x_stderr;
  63         x_setbuf(x_stderr, NULL);
  64         AllowDebugChange = false;
  65
  66         load_case_tables();
  67
  68         if (!lp_load(get_dyn_CONFIGFILE(), true, false, false, false)) {
  69                 TALLOC_FREE(frame);
  70                 fprintf(stderr, "lp_load failed\n");
  71                 return W_ERROR_V(WERR_GENERAL_FAILURE);
  72         }
  73
  74         AllowDebugChange = true;
  75
  76         init_names();
  77         load_interfaces();
  78         reopen_logs();
  79
  80         BlockSignals(True, SIGPIPE);
  81
  82         krb5_cc_env = getenv(KRB5_ENV_CCNAME);
  83         if (!krb5_cc_env || (strlen(krb5_cc_env) == 0)) {
  84                 ctx->krb5_cc_env = talloc_strdup(frame, "MEMORY:libnetapi");
  85                 setenv(KRB5_ENV_CCNAME, ctx->krb5_cc_env, 1);
  86         }
  87
  88         if (getenv("USER")) {
  89                 ctx->username = talloc_strdup(frame, getenv("USER"));
  90         } else {
  91                 ctx->username = talloc_strdup(frame, "");
  92         }
  93         if (!ctx->username) {
  94                 TALLOC_FREE(frame);
  95                 fprintf(stderr, "libnetapi_init: out of memory\n");
  96                 return W_ERROR_V(WERR_NOMEM);
  97         }
  98
  99         libnetapi_initialized = true;
 100
 101         *context = stat_ctx = ctx;
 102
 103         return NET_API_STATUS_SUCCESS;
 104 }
 105
 106 /****************************************************************
 107 ****************************************************************/
 108
 109 NET_API_STATUS libnetapi_getctx(struct libnetapi_ctx **ctx)
 110 {
 111         if (stat_ctx) {
 112                 *ctx = stat_ctx;
 113                 return NET_API_STATUS_SUCCESS;
 114         }
 115
 116         return libnetapi_init(ctx);
 117 }
 118
 119 /****************************************************************
 120 ****************************************************************/
 121
 122 NET_API_STATUS libnetapi_free(struct libnetapi_ctx *ctx)
 123 {
 124         if (!ctx) {
 125                 return NET_API_STATUS_SUCCESS;
 126         }
 127
 128         libnetapi_shutdown_cm(ctx);
 129
 130         if (ctx->krb5_cc_env) {
 131                 char *env = getenv(KRB5_ENV_CCNAME);
 132                 if (env && (strequal(ctx->krb5_cc_env, env))) {
 133                         unsetenv(KRB5_ENV_CCNAME);
 134                 }
 135         }
 136
 137         gfree_names();
 138         gfree_loadparm();
 139         gfree_case_tables();
 140         gfree_charcnv();
 141         gfree_interfaces();
 142
 143         gencache_shutdown();
 144         secrets_shutdown();
 145
 146         TALLOC_FREE(ctx);
 147         TALLOC_FREE(frame);
 148
 149         gfree_debugsyms();
 150
 151         return NET_API_STATUS_SUCCESS;
 152 }
 153
 154 /****************************************************************
 155 ****************************************************************/
 156
 157 NET_API_STATUS libnetapi_set_debuglevel(struct libnetapi_ctx *ctx,
 158                                         const char *debuglevel)
 159 {
 160         AllowDebugChange = true;
 161         ctx->debuglevel = talloc_strdup(ctx, debuglevel);
 162         if (!debug_parse_levels(debuglevel)) {
 163                 return W_ERROR_V(WERR_GENERAL_FAILURE);
 164         }
 165         return NET_API_STATUS_SUCCESS;
 166 }
 167
 168 /****************************************************************
 169 ****************************************************************/
 170
 171 NET_API_STATUS libnetapi_get_debuglevel(struct libnetapi_ctx *ctx,
 172                                         char **debuglevel)
 173 {
 174         *debuglevel = ctx->debuglevel;
 175         return NET_API_STATUS_SUCCESS;
 176 }
 177
 178 /****************************************************************
 179 ****************************************************************/
 180
 181 NET_API_STATUS libnetapi_set_username(struct libnetapi_ctx *ctx,
 182                                       const char *username)
 183 {
 184         TALLOC_FREE(ctx->username);
 185         ctx->username = talloc_strdup(ctx, username ? username : "");
 186
 187         if (!ctx->username) {
 188                 return W_ERROR_V(WERR_NOMEM);
 189         }
 190         return NET_API_STATUS_SUCCESS;
 191 }
 192
 193 NET_API_STATUS libnetapi_set_password(struct libnetapi_ctx *ctx,
 194                                       const char *password)
 195 {
 196         TALLOC_FREE(ctx->password);
 197         ctx->password = talloc_strdup(ctx, password);
 198         if (!ctx->password) {
 199                 return W_ERROR_V(WERR_NOMEM);
 200         }
 201         return NET_API_STATUS_SUCCESS;
 202 }
 203
 204 NET_API_STATUS libnetapi_set_workgroup(struct libnetapi_ctx *ctx,
 205                                        const char *workgroup)
 206 {
 207         TALLOC_FREE(ctx->workgroup);
 208         ctx->workgroup = talloc_strdup(ctx, workgroup);
 209         if (!ctx->workgroup) {
 210                 return W_ERROR_V(WERR_NOMEM);
 211         }
 212         return NET_API_STATUS_SUCCESS;
 213 }
 214
 215 /****************************************************************
 216 ****************************************************************/
 217
 218 NET_API_STATUS libnetapi_set_use_kerberos(struct libnetapi_ctx *ctx)
 219 {
 220         ctx->use_kerberos = true;
 221         return NET_API_STATUS_SUCCESS;
 222 }
 223
 224 /****************************************************************
 225 ****************************************************************/
 226
 227 const char *libnetapi_errstr(NET_API_STATUS status)
 228 {
 229         if (status & 0xc0000000) {
 230                 return get_friendly_nt_error_msg(NT_STATUS(status));
 231         }
 232
 233         return get_friendly_werror_msg(W_ERROR(status));
 234 }
 235
 236 /****************************************************************
 237 ****************************************************************/
 238
 239 NET_API_STATUS libnetapi_set_error_string(struct libnetapi_ctx *ctx,
 240                                           const char *format, ...)
 241 {
 242         va_list args;
 243
 244         TALLOC_FREE(ctx->error_string);
 245
 246         va_start(args, format);
 247         ctx->error_string = talloc_vasprintf(ctx, format, args);
 248         va_end(args);
 249
 250         if (!ctx->error_string) {
 251                 return W_ERROR_V(WERR_NOMEM);
 252         }
 253         return NET_API_STATUS_SUCCESS;
 254 }
 255
 256 /****************************************************************
 257 ****************************************************************/
 258
 259 const char *libnetapi_get_error_string(struct libnetapi_ctx *ctx,
 260                                        NET_API_STATUS status_in)
 261 {
 262         NET_API_STATUS status;
 263         struct libnetapi_ctx *tmp_ctx = ctx;
 264
 265         if (!tmp_ctx) {
 266                 status = libnetapi_getctx(&tmp_ctx);
 267                 if (status != 0) {
 268                         return NULL;
 269                 }
 270         }
 271
 272         if (tmp_ctx->error_string) {
 273                 return tmp_ctx->error_string;
 274         }
 275
 276         return libnetapi_errstr(status_in);
 277 }
 278
 279 /****************************************************************
 280 ****************************************************************/
 281
 282 NET_API_STATUS NetApiBufferFree(void *buffer)
 283 {
 284         if (!buffer) {
 285                 return W_ERROR_V(WERR_INSUFFICIENT_BUFFER);
 286         }
 287
 288         talloc_free(buffer);
 289
 290         return NET_API_STATUS_SUCCESS;
 291 }