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
  23 extern bool AllowDebugChange;
  24
  25 struct libnetapi_ctx *stat_ctx = NULL;
  26 TALLOC_CTX *frame = NULL;
  27 static bool libnetapi_initialized = false;
  28
  29 /****************************************************************
  30 ****************************************************************/
  31
  32 NET_API_STATUS libnetapi_init(struct libnetapi_ctx **context)
  33 {
  34         struct libnetapi_ctx *ctx = NULL;
  35         char *krb5_cc_env = NULL;
  36
  37         if (stat_ctx && libnetapi_initialized) {
  38                 *context = stat_ctx;
  39                 return NET_API_STATUS_SUCCESS;
  40         }
  41
  42 #ifdef DEVELOPER
  43         talloc_enable_leak_report();
  44 #endif
  45         frame = talloc_stackframe();
  46
  47         ctx = talloc_zero(frame, struct libnetapi_ctx);
  48         if (!ctx) {
  49                 TALLOC_FREE(frame);
  50                 return W_ERROR_V(WERR_NOMEM);
  51         }
  52
  53         if (!DEBUGLEVEL) {
  54                 DEBUGLEVEL = 0;
  55         }
  56         setup_logging("libnetapi", true);
  57
  58         dbf = x_stderr;
  59         x_setbuf(x_stderr, NULL);
  60         AllowDebugChange = false;
  61
  62         load_case_tables();
  63
  64         if (!lp_load(get_dyn_CONFIGFILE(), true, false, false, false)) {
  65                 TALLOC_FREE(frame);
  66                 fprintf(stderr, "lp_load failed\n");
  67                 return W_ERROR_V(WERR_GENERAL_FAILURE);
  68         }
  69
  70         AllowDebugChange = true;
  71
  72         init_names();
  73         load_interfaces();
  74         reopen_logs();
  75
  76         BlockSignals(True, SIGPIPE);
  77
  78         krb5_cc_env = getenv(KRB5_ENV_CCNAME);
  79         if (!krb5_cc_env || (strlen(krb5_cc_env) == 0)) {
  80                 ctx->krb5_cc_env = talloc_strdup(frame, "MEMORY:libnetapi");
  81                 setenv(KRB5_ENV_CCNAME, ctx->krb5_cc_env, 1);
  82         }
  83
  84         libnetapi_initialized = true;
  85
  86         *context = stat_ctx = ctx;
  87
  88         return NET_API_STATUS_SUCCESS;
  89 }
  90
  91 /****************************************************************
  92 ****************************************************************/
  93
  94 NET_API_STATUS libnetapi_getctx(struct libnetapi_ctx **ctx)
  95 {
  96         if (stat_ctx) {
  97                 *ctx = stat_ctx;
  98                 return NET_API_STATUS_SUCCESS;
  99         }
 100
 101         return libnetapi_init(ctx);
 102 }
 103
 104 /****************************************************************
 105 ****************************************************************/
 106
 107 NET_API_STATUS libnetapi_free(struct libnetapi_ctx *ctx)
 108 {
 109
 110         if (ctx->krb5_cc_env) {
 111                 char *env = getenv(KRB5_ENV_CCNAME);
 112                 if (env && (strequal(ctx->krb5_cc_env, env))) {
 113                         unsetenv(KRB5_ENV_CCNAME);
 114                 }
 115         }
 116
 117         gfree_names();
 118         gfree_loadparm();
 119         gfree_case_tables();
 120         gfree_charcnv();
 121         gfree_interfaces();
 122
 123         gencache_shutdown();
 124         secrets_shutdown();
 125
 126         TALLOC_FREE(ctx);
 127         TALLOC_FREE(frame);
 128
 129         gfree_debugsyms();
 130
 131         return NET_API_STATUS_SUCCESS;
 132 }
 133
 134 /****************************************************************
 135 ****************************************************************/
 136
 137 NET_API_STATUS libnetapi_set_debuglevel(struct libnetapi_ctx *ctx,
 138                                         const char *debuglevel)
 139 {
 140         AllowDebugChange = true;
 141         ctx->debuglevel = talloc_strdup(ctx, debuglevel);
 142         if (!debug_parse_levels(debuglevel)) {
 143                 return W_ERROR_V(WERR_GENERAL_FAILURE);
 144         }
 145         return NET_API_STATUS_SUCCESS;
 146 }
 147
 148 /****************************************************************
 149 ****************************************************************/
 150
 151 NET_API_STATUS libnetapi_get_debuglevel(struct libnetapi_ctx *ctx,
 152                                         char **debuglevel)
 153 {
 154         *debuglevel = ctx->debuglevel;
 155         return NET_API_STATUS_SUCCESS;
 156 }
 157
 158 /****************************************************************
 159 ****************************************************************/
 160
 161 NET_API_STATUS libnetapi_set_username(struct libnetapi_ctx *ctx,
 162                                       const char *username)
 163 {
 164         TALLOC_FREE(ctx->username);
 165         ctx->username = talloc_strdup(ctx, username);
 166         if (!ctx->username) {
 167                 return W_ERROR_V(WERR_NOMEM);
 168         }
 169         return NET_API_STATUS_SUCCESS;
 170 }
 171
 172 NET_API_STATUS libnetapi_set_password(struct libnetapi_ctx *ctx,
 173                                       const char *password)
 174 {
 175         TALLOC_FREE(ctx->password);
 176         ctx->password = talloc_strdup(ctx, password);
 177         if (!ctx->password) {
 178                 return W_ERROR_V(WERR_NOMEM);
 179         }
 180         return NET_API_STATUS_SUCCESS;
 181 }
 182
 183 NET_API_STATUS libnetapi_set_workgroup(struct libnetapi_ctx *ctx,
 184                                        const char *workgroup)
 185 {
 186         TALLOC_FREE(ctx->workgroup);
 187         ctx->workgroup = talloc_strdup(ctx, workgroup);
 188         if (!ctx->workgroup) {
 189                 return W_ERROR_V(WERR_NOMEM);
 190         }
 191         return NET_API_STATUS_SUCCESS;
 192 }
 193
 194 /****************************************************************
 195 ****************************************************************/
 196
 197 const char *libnetapi_errstr(NET_API_STATUS status)
 198 {
 199         if (status & 0xc0000000) {
 200                 return get_friendly_nt_error_msg(NT_STATUS(status));
 201         }
 202
 203         return get_friendly_werror_msg(W_ERROR(status));
 204 }
 205
 206 /****************************************************************
 207 ****************************************************************/
 208
 209 NET_API_STATUS libnetapi_set_error_string(struct libnetapi_ctx *ctx,
 210                                           const char *format, ...)
 211 {
 212         va_list args;
 213
 214         TALLOC_FREE(ctx->error_string);
 215
 216         va_start(args, format);
 217         ctx->error_string = talloc_vasprintf(ctx, format, args);
 218         va_end(args);
 219
 220         if (!ctx->error_string) {
 221                 return W_ERROR_V(WERR_NOMEM);
 222         }
 223         return NET_API_STATUS_SUCCESS;
 224 }
 225
 226 /****************************************************************
 227 ****************************************************************/
 228
 229 const char *libnetapi_get_error_string(struct libnetapi_ctx *ctx,
 230                                        NET_API_STATUS status)
 231 {
 232         struct libnetapi_ctx *tmp_ctx = ctx;
 233
 234         if (!tmp_ctx) {
 235                 status = libnetapi_getctx(&tmp_ctx);
 236                 if (status != 0) {
 237                         return NULL;
 238                 }
 239         }
 240
 241         if (tmp_ctx->error_string) {
 242                 return tmp_ctx->error_string;
 243         }
 244
 245         return libnetapi_errstr(status);
 246 }
 247
 248 /****************************************************************
 249 ****************************************************************/
 250
 251 NET_API_STATUS NetApiBufferFree(void *buffer)
 252 {
 253         if (!buffer) {
 254                 return W_ERROR_V(WERR_INSUFFICIENT_BUFFER);
 255         }
 256
 257         talloc_free(buffer);
 258
 259         return NET_API_STATUS_SUCCESS;
 260 }