source/nsswitch/winbindd_misc.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    Winbind daemon - miscellaneous other functions
   5
   6    Copyright (C) Tim Potter      2000
   7    Copyright (C) Andrew Bartlett 2002
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 2 of the License, or
  12    (at your option) any later version.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program; if not, write to the Free Software
  21    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  22 */
  23
  24 #include "winbindd.h"
  25
  26 #undef DBGC_CLASS
  27 #define DBGC_CLASS DBGC_WINBIND
  28
  29 /* Check the machine account password is valid */
  30
  31 enum winbindd_result winbindd_check_machine_acct(struct winbindd_cli_state *state)
  32 {
  33         NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
  34         uchar trust_passwd[16];
  35         int num_retries = 0;
  36         struct cli_state *cli;
  37         uint32 sec_channel_type;
  38         DEBUG(3, ("[%5d]: check machine account\n", state->pid));
  39
  40         /* Get trust account password */
  41
  42  again:
  43         if (!secrets_fetch_trust_account_password(
  44                     lp_workgroup(), trust_passwd, NULL, &sec_channel_type)) {
  45                 result = NT_STATUS_INTERNAL_ERROR;
  46                 goto done;
  47         }
  48
  49         /* This call does a cli_nt_setup_creds() which implicitly checks
  50            the trust account password. */
  51
  52         /* Don't shut this down - it belongs to the connection cache code */
  53         result = cm_get_netlogon_cli(lp_workgroup(), trust_passwd, sec_channel_type, True, &cli);
  54
  55         if (!NT_STATUS_IS_OK(result)) {
  56                 DEBUG(3, ("could not open handle to NETLOGON pipe\n"));
  57                 goto done;
  58         }
  59
  60         /* There is a race condition between fetching the trust account
  61            password and the periodic machine password change.  So it's
  62            possible that the trust account password has been changed on us.
  63            We are returned NT_STATUS_ACCESS_DENIED if this happens. */
  64
  65 #define MAX_RETRIES 8
  66
  67         if ((num_retries < MAX_RETRIES) &&
  68             NT_STATUS_V(result) == NT_STATUS_V(NT_STATUS_ACCESS_DENIED)) {
  69                 num_retries++;
  70                 goto again;
  71         }
  72
  73         /* Pass back result code - zero for success, other values for
  74            specific failures. */
  75
  76         DEBUG(3, ("secret is %s\n", NT_STATUS_IS_OK(result) ?
  77                   "good" : "bad"));
  78
  79  done:
  80         state->response.data.auth.nt_status = NT_STATUS_V(result);
  81         fstrcpy(state->response.data.auth.nt_status_string, nt_errstr(result));
  82         fstrcpy(state->response.data.auth.error_string, nt_errstr(result));
  83         state->response.data.auth.pam_error = nt_status_to_pam(result);
  84
  85         DEBUG(NT_STATUS_IS_OK(result) ? 5 : 2, ("Checking the trust account password returned %s\n",
  86                                                 state->response.data.auth.nt_status_string));
  87
  88         return NT_STATUS_IS_OK(result) ? WINBINDD_OK : WINBINDD_ERROR;
  89 }
  90
  91 enum winbindd_result winbindd_list_trusted_domains(struct winbindd_cli_state
  92                                                    *state)
  93 {
  94         struct winbindd_domain *domain;
  95         int total_entries = 0, extra_data_len = 0;
  96         char *ted, *extra_data = NULL;
  97
  98         DEBUG(3, ("[%5d]: list trusted domains\n", state->pid));
  99
 100         /* We need to refresh the trusted domain list as the domains may
 101            have changed since we last looked.  There may be a sequence
 102            number or something we should use but I haven't found it yet. */
 103
 104         if (!init_domain_list()) {
 105                 DEBUG(1, ("winbindd_list_trusted_domains: could not "
 106                           "refresh trusted domain list\n"));
 107                 return WINBINDD_ERROR;
 108         }
 109
 110         for(domain = domain_list(); domain; domain = domain->next) {
 111
 112                 /* Skip own domain */
 113
 114                 if (strequal(domain->name, lp_workgroup())) continue;
 115
 116                 /* Add domain to list */
 117
 118                 total_entries++;
 119                 ted = Realloc(extra_data, sizeof(fstring) *
 120                               total_entries);
 121
 122                 if (!ted) {
 123                         DEBUG(0,("winbindd_list_trusted_domains: failed to enlarge buffer!\n"));
 124                         SAFE_FREE(extra_data);
 125                         return WINBINDD_ERROR;
 126                 } else
 127                         extra_data = ted;
 128
 129                 memcpy(&extra_data[extra_data_len], domain->name,
 130                        strlen(domain->name));
 131
 132                 extra_data_len  += strlen(domain->name);
 133                 extra_data[extra_data_len++] = ',';
 134         }
 135
 136         if (extra_data) {
 137                 if (extra_data_len > 1)
 138                         extra_data[extra_data_len - 1] = '\0';
 139                 state->response.extra_data = extra_data;
 140                 state->response.length += extra_data_len;
 141         }
 142
 143         return WINBINDD_OK;
 144 }
 145
 146
 147 enum winbindd_result winbindd_show_sequence(struct winbindd_cli_state *state)
 148 {
 149         struct winbindd_domain *domain;
 150         char *extra_data = NULL;
 151
 152         DEBUG(3, ("[%5d]: show sequence\n", state->pid));
 153
 154         extra_data = strdup("");
 155
 156         /* this makes for a very simple data format, and is easily parsable as well
 157            if that is ever needed */
 158         for (domain = domain_list(); domain; domain = domain->next) {
 159                 char *s;
 160
 161                 domain->methods->sequence_number(domain, &domain->sequence_number);
 162
 163                 if (DOM_SEQUENCE_NONE == (unsigned)domain->sequence_number) {
 164                         asprintf(&s,"%s%s : DISCONNECTED\n", extra_data,
 165                                  domain->name);
 166                 } else {
 167                         asprintf(&s,"%s%s : %u\n", extra_data,
 168                                  domain->name, (unsigned)domain->sequence_number);
 169                 }
 170                 free(extra_data);
 171                 extra_data = s;
 172         }
 173
 174         state->response.extra_data = extra_data;
 175         /* must add one to length to copy the 0 for string termination */
 176         state->response.length += strlen(extra_data) + 1;
 177
 178         return WINBINDD_OK;
 179 }
 180
 181 enum winbindd_result winbindd_ping(struct winbindd_cli_state
 182                                                    *state)
 183 {
 184         DEBUG(3, ("[%5d]: ping\n", state->pid));
 185
 186         return WINBINDD_OK;
 187 }
 188
 189 /* List various tidbits of information */
 190
 191 enum winbindd_result winbindd_info(struct winbindd_cli_state *state)
 192 {
 193
 194         DEBUG(3, ("[%5d]: request misc info\n", state->pid));
 195
 196         state->response.data.info.winbind_separator = *lp_winbind_separator();
 197         fstrcpy(state->response.data.info.samba_version, VERSION);
 198
 199         return WINBINDD_OK;
 200 }
 201
 202 /* Tell the client the current interface version */
 203
 204 enum winbindd_result winbindd_interface_version(struct winbindd_cli_state *state)
 205 {
 206
 207         DEBUG(3, ("[%5d]: request interface version\n", state->pid));
 208
 209         state->response.data.interface_version = WINBIND_INTERFACE_VERSION;
 210
 211         return WINBINDD_OK;
 212 }
 213
 214 /* What domain are we a member of? */
 215
 216 enum winbindd_result winbindd_domain_name(struct winbindd_cli_state *state)
 217 {
 218
 219         DEBUG(3, ("[%5d]: request domain name\n", state->pid));
 220
 221         fstrcpy(state->response.data.domain_name, lp_workgroup());
 222
 223         return WINBINDD_OK;
 224 }
 225
 226 /* What's my name again? */
 227
 228 enum winbindd_result winbindd_netbios_name(struct winbindd_cli_state *state)
 229 {
 230
 231         DEBUG(3, ("[%5d]: request netbios name\n", state->pid));
 232
 233         fstrcpy(state->response.data.netbios_name, global_myname());
 234
 235         return WINBINDD_OK;
 236 }
 237
 238 /* Where can I find the privilaged pipe? */
 239
 240 enum winbindd_result winbindd_priv_pipe_dir(struct winbindd_cli_state *state)
 241 {
 242
 243         DEBUG(3, ("[%5d]: request location of privileged pipe\n", state->pid));
 244
 245         state->response.extra_data = strdup(get_winbind_priv_pipe_dir());
 246         if (!state->response.extra_data)
 247                 return WINBINDD_ERROR;
 248
 249         /* must add one to length to copy the 0 for string termination */
 250         state->response.length += strlen((char *)state->response.extra_data) + 1;
 251
 252         return WINBINDD_OK;
 253 }