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 extern pstring global_myname;
  27
  28 /* Check the machine account password is valid */
  29
  30 enum winbindd_result winbindd_check_machine_acct(struct winbindd_cli_state *state)
  31 {
  32         NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
  33         uchar trust_passwd[16];
  34         int num_retries = 0;
  35         struct cli_state *cli;
  36         DEBUG(3, ("[%5d]: check machine account\n", state->pid));
  37
  38         /* Get trust account password */
  39
  40  again:
  41         if (!secrets_fetch_trust_account_password(
  42                     lp_workgroup(), trust_passwd, NULL)) {
  43                 result = NT_STATUS_INTERNAL_ERROR;
  44                 DEBUG(3, ("could not retrieve trust account pw for %s\n", lp_workgroup()));
  45                 goto done;
  46         }
  47
  48         /* This call does a cli_nt_setup_creds() which implicitly checks
  49            the trust account password. */
  50
  51         /* Don't shut this down - it belongs to the connection cache code */
  52         result = cm_get_netlogon_cli(lp_workgroup(), trust_passwd, &cli);
  53
  54         if (!NT_STATUS_IS_OK(result)) {
  55                 DEBUG(3, ("could not open handle to NETLOGON pipe\n"));
  56                 goto done;
  57         }
  58
  59         /* There is a race condition between fetching the trust account
  60            password and the periodic machine password change.  So it's
  61            possible that the trust account password has been changed on us.
  62            We are returned NT_STATUS_ACCESS_DENIED if this happens. */
  63
  64 #define MAX_RETRIES 8
  65
  66         if ((num_retries < MAX_RETRIES) &&
  67             NT_STATUS_V(result) == NT_STATUS_V(NT_STATUS_ACCESS_DENIED)) {
  68                 num_retries++;
  69                 goto again;
  70         }
  71
  72         /* Pass back result code - zero for success, other values for
  73            specific failures. */
  74
  75         DEBUG(3, ("secret is %s\n", NT_STATUS_IS_OK(result) ?
  76                   "good" : "bad"));
  77
  78  done:
  79         state->response.data.auth.nt_status = NT_STATUS_V(result);
  80         fstrcpy(state->response.data.auth.nt_status_string, get_nt_error_msg(result));
  81         fstrcpy(state->response.data.auth.error_string, get_nt_error_msg(result));
  82         /*state->response.data.auth.pam_error = nt_status_to_pam(result);*/
  83
  84         return WINBINDD_OK;
  85 }
  86
  87 enum winbindd_result winbindd_list_trusted_domains(struct winbindd_cli_state
  88                                                    *state)
  89 {
  90         struct winbindd_domain *domain;
  91         int total_entries = 0, extra_data_len = 0;
  92         char *ted, *extra_data = NULL;
  93
  94         DEBUG(3, ("[%5d]: list trusted domains\n", state->pid));
  95
  96         /* We need to refresh the trusted domain list as the domains may
  97            have changed since we last looked.  There may be a sequence
  98            number or something we should use but I haven't found it yet. */
  99
 100         init_domain_list();
 101
 102         for(domain = domain_list(); domain; domain = domain->next) {
 103
 104                 /* Skip own domain */
 105
 106                 if (strequal(domain->name, lp_workgroup())) continue;
 107
 108                 /* Add domain to list */
 109
 110                 total_entries++;
 111                 ted = Realloc(extra_data, sizeof(fstring) *
 112                               total_entries);
 113
 114                 if (!ted) {
 115                         DEBUG(0,("winbindd_list_trusted_domains: failed to enlarge buffer!\n"));
 116                         SAFE_FREE(extra_data);
 117                         return WINBINDD_ERROR;
 118                 } else
 119                         extra_data = ted;
 120
 121                 memcpy(&extra_data[extra_data_len], domain->name,
 122                        strlen(domain->name));
 123
 124                 extra_data_len  += strlen(domain->name);
 125                 extra_data[extra_data_len++] = ',';
 126         }
 127
 128         if (extra_data) {
 129                 if (extra_data_len > 1)
 130                         extra_data[extra_data_len - 1] = '\0';
 131                 state->response.extra_data = extra_data;
 132                 state->response.length += extra_data_len;
 133         }
 134
 135         return WINBINDD_OK;
 136 }
 137
 138
 139 enum winbindd_result winbindd_show_sequence(struct winbindd_cli_state *state)
 140 {
 141         struct winbindd_domain *domain;
 142         char *extra_data = NULL;
 143
 144         DEBUG(3, ("[%5d]: show sequence\n", state->pid));
 145
 146         extra_data = strdup("");
 147
 148         /* this makes for a very simple data format, and is easily parsable as well
 149            if that is ever needed */
 150         for (domain = domain_list(); domain; domain = domain->next) {
 151                 char *s;
 152
 153                 domain->methods->sequence_number(domain, &domain->sequence_number);
 154
 155                 if (DOM_SEQUENCE_NONE == (unsigned)domain->sequence_number) {
 156                         asprintf(&s,"%s%s : DISCONNECTED\n", extra_data,
 157                                  domain->name);
 158                 } else {
 159                         asprintf(&s,"%s%s : %u\n", extra_data,
 160                                  domain->name, (unsigned)domain->sequence_number);
 161                 }
 162                 free(extra_data);
 163                 extra_data = s;
 164         }
 165
 166         state->response.extra_data = extra_data;
 167         /* must add one to length to copy the 0 for string termination */
 168         state->response.length += strlen(extra_data) + 1;
 169
 170         return WINBINDD_OK;
 171 }
 172
 173 enum winbindd_result winbindd_ping(struct winbindd_cli_state
 174                                                    *state)
 175 {
 176         DEBUG(3, ("[%5d]: ping\n", state->pid));
 177
 178         return WINBINDD_OK;
 179 }
 180
 181 /* List various tidbits of information */
 182
 183 enum winbindd_result winbindd_info(struct winbindd_cli_state *state)
 184 {
 185
 186         DEBUG(3, ("[%5d]: request misc info\n", state->pid));
 187
 188         state->response.data.info.winbind_separator = *lp_winbind_separator();
 189         fstrcpy(state->response.data.info.samba_version, VERSION);
 190
 191         return WINBINDD_OK;
 192 }
 193
 194 /* Tell the client the current interface version */
 195
 196 enum winbindd_result winbindd_interface_version(struct winbindd_cli_state *state)
 197 {
 198
 199         DEBUG(3, ("[%5d]: request interface version\n", state->pid));
 200
 201         state->response.data.interface_version = WINBIND_INTERFACE_VERSION;
 202
 203         return WINBINDD_OK;
 204 }
 205
 206 /* What domain are we a member of? */
 207
 208 enum winbindd_result winbindd_domain_name(struct winbindd_cli_state *state)
 209 {
 210
 211         DEBUG(3, ("[%5d]: request domain name\n", state->pid));
 212
 213         fstrcpy(state->response.data.domain_name, lp_workgroup());
 214
 215         return WINBINDD_OK;
 216 }