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 #ifdef DEVELOPER
  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         ctx->username = talloc_strdup(frame, getenv("USER"));
  89         if (!ctx->username) {
  90                 TALLOC_FREE(frame);
  91                 fprintf(stderr, "out of memory\n");
  92                 return W_ERROR_V(WERR_NOMEM);
  93         }
  94
  95         libnetapi_initialized = true;
  96
  97         *context = stat_ctx = ctx;
  98
  99         return NET_API_STATUS_SUCCESS;
 100 }
 101
 102 /****************************************************************
 103 ****************************************************************/
 104
 105 NET_API_STATUS libnetapi_getctx(struct libnetapi_ctx **ctx)
 106 {
 107         if (stat_ctx) {
 108                 *ctx = stat_ctx;
 109                 return NET_API_STATUS_SUCCESS;
 110         }
 111
 112         return libnetapi_init(ctx);
 113 }
 114
 115 /****************************************************************
 116 ****************************************************************/
 117
 118 NET_API_STATUS libnetapi_free(struct libnetapi_ctx *ctx)
 119 {
 120         libnetapi_shutdown_cm(ctx);
 121
 122         if (ctx->krb5_cc_env) {
 123                 char *env = getenv(KRB5_ENV_CCNAME);
 124                 if (env && (strequal(ctx->krb5_cc_env, env))) {
 125                         unsetenv(KRB5_ENV_CCNAME);
 126                 }
 127         }
 128
 129         gfree_names();
 130         gfree_loadparm();
 131         gfree_case_tables();
 132         gfree_charcnv();
 133         gfree_interfaces();
 134
 135         gencache_shutdown();
 136         secrets_shutdown();
 137
 138         TALLOC_FREE(ctx);
 139         TALLOC_FREE(frame);
 140
 141         gfree_debugsyms();
 142
 143         return NET_API_STATUS_SUCCESS;
 144 }
 145
 146 /****************************************************************
 147 ****************************************************************/
 148
 149 NET_API_STATUS libnetapi_set_debuglevel(struct libnetapi_ctx *ctx,
 150                                         const char *debuglevel)
 151 {
 152         AllowDebugChange = true;
 153         ctx->debuglevel = talloc_strdup(ctx, debuglevel);
 154         if (!debug_parse_levels(debuglevel)) {
 155                 return W_ERROR_V(WERR_GENERAL_FAILURE);
 156         }
 157         return NET_API_STATUS_SUCCESS;
 158 }
 159
 160 /****************************************************************
 161 ****************************************************************/
 162
 163 NET_API_STATUS libnetapi_get_debuglevel(struct libnetapi_ctx *ctx,
 164                                         char **debuglevel)
 165 {
 166         *debuglevel = ctx->debuglevel;
 167         return NET_API_STATUS_SUCCESS;
 168 }
 169
 170 /****************************************************************
 171 ****************************************************************/
 172
 173 NET_API_STATUS libnetapi_set_username(struct libnetapi_ctx *ctx,
 174                                       const char *username)
 175 {
 176         TALLOC_FREE(ctx->username);
 177         ctx->username = talloc_strdup(ctx, username ? username : "");
 178
 179         if (!ctx->username) {
 180                 return W_ERROR_V(WERR_NOMEM);
 181         }
 182         return NET_API_STATUS_SUCCESS;
 183 }
 184
 185 NET_API_STATUS libnetapi_set_password(struct libnetapi_ctx *ctx,
 186                                       const char *password)
 187 {
 188         TALLOC_FREE(ctx->password);
 189         ctx->password = talloc_strdup(ctx, password);
 190         if (!ctx->password) {
 191                 return W_ERROR_V(WERR_NOMEM);
 192         }
 193         return NET_API_STATUS_SUCCESS;
 194 }
 195
 196 NET_API_STATUS libnetapi_set_workgroup(struct libnetapi_ctx *ctx,
 197                                        const char *workgroup)
 198 {
 199         TALLOC_FREE(ctx->workgroup);
 200         ctx->workgroup = talloc_strdup(ctx, workgroup);
 201         if (!ctx->workgroup) {
 202                 return W_ERROR_V(WERR_NOMEM);
 203         }
 204         return NET_API_STATUS_SUCCESS;
 205 }
 206
 207 /****************************************************************
 208 ****************************************************************/
 209
 210 const char *libnetapi_errstr(NET_API_STATUS status)
 211 {
 212         if (status & 0xc0000000) {
 213                 return get_friendly_nt_error_msg(NT_STATUS(status));
 214         }
 215
 216         return get_friendly_werror_msg(W_ERROR(status));
 217 }
 218
 219 /****************************************************************
 220 ****************************************************************/
 221
 222 NET_API_STATUS libnetapi_set_error_string(struct libnetapi_ctx *ctx,
 223                                           const char *format, ...)
 224 {
 225         va_list args;
 226
 227         TALLOC_FREE(ctx->error_string);
 228
 229         va_start(args, format);
 230         ctx->error_string = talloc_vasprintf(ctx, format, args);
 231         va_end(args);
 232
 233         if (!ctx->error_string) {
 234                 return W_ERROR_V(WERR_NOMEM);
 235         }
 236         return NET_API_STATUS_SUCCESS;
 237 }
 238
 239 /****************************************************************
 240 ****************************************************************/
 241
 242 const char *libnetapi_get_error_string(struct libnetapi_ctx *ctx,
 243                                        NET_API_STATUS status)
 244 {
 245         struct libnetapi_ctx *tmp_ctx = ctx;
 246
 247         if (!tmp_ctx) {
 248                 status = libnetapi_getctx(&tmp_ctx);
 249                 if (status != 0) {
 250                         return NULL;
 251                 }
 252         }
 253
 254         if (tmp_ctx->error_string) {
 255                 return tmp_ctx->error_string;
 256         }
 257
 258         return libnetapi_errstr(status);
 259 }
 260
 261 /****************************************************************
 262 ****************************************************************/
 263
 264 NET_API_STATUS NetApiBufferFree(void *buffer)
 265 {
 266         if (!buffer) {
 267                 return W_ERROR_V(WERR_INSUFFICIENT_BUFFER);
 268         }
 269
 270         talloc_free(buffer);
 271
 272         return NET_API_STATUS_SUCCESS;
 273 }