source4/libnet/libnet_samdump.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    Extract the user/system database from a remote SamSync server
   5
   6    Copyright (C) Andrew Bartlett <abartlet@samba.org> 2004-2005
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 3 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20 */
  21
  22
  23 #include "includes.h"
  24 #include "libnet/libnet.h"
  25 #include "../lib/util/dlinklist.h"
  26 #include "samba3/samba3.h"
  27 #include "libcli/security/security.h"
  28 #include "param/param.h"
  29
  30
  31 struct samdump_secret {
  32         struct samdump_secret *prev, *next;
  33         DATA_BLOB secret;
  34         char *name;
  35         NTTIME mtime;
  36 };
  37
  38 struct samdump_trusted_domain {
  39         struct samdump_trusted_domain *prev, *next;
  40         struct dom_sid *sid;
  41         char *name;
  42 };
  43
  44 struct samdump_state {
  45         struct samdump_secret *secrets;
  46         struct samdump_trusted_domain *trusted_domains;
  47 };
  48
  49 static NTSTATUS vampire_samdump_handle_user(TALLOC_CTX *mem_ctx,
  50                                             struct netr_DELTA_ENUM *delta)
  51 {
  52         uint32_t rid = delta->delta_id_union.rid;
  53         struct netr_DELTA_USER *user = delta->delta_union.user;
  54         const char *username = user->account_name.string;
  55         char *hex_lm_password;
  56         char *hex_nt_password;
  57
  58         hex_lm_password = smbpasswd_sethexpwd(mem_ctx,
  59                                               user->lm_password_present ? &user->lmpassword : NULL,
  60                                               user->acct_flags);
  61         hex_nt_password = smbpasswd_sethexpwd(mem_ctx,
  62                                               user->nt_password_present ? &user->ntpassword : NULL,
  63                                               user->acct_flags);
  64
  65         printf("%s:%d:%s:%s:%s:LCT-%08X\n", username,
  66                rid, hex_lm_password, hex_nt_password,
  67                smbpasswd_encode_acb_info(mem_ctx, user->acct_flags),
  68                (unsigned int)nt_time_to_unix(user->last_password_change));
  69
  70         return NT_STATUS_OK;
  71 }
  72
  73 static NTSTATUS vampire_samdump_handle_secret(TALLOC_CTX *mem_ctx,
  74                                               struct samdump_state *samdump_state,
  75                                               struct netr_DELTA_ENUM *delta)
  76 {
  77         struct netr_DELTA_SECRET *secret = delta->delta_union.secret;
  78         const char *name = delta->delta_id_union.name;
  79         struct samdump_secret *n = talloc(samdump_state, struct samdump_secret);
  80
  81         n->name = talloc_strdup(n, name);
  82         n->secret = data_blob_talloc(n, secret->current_cipher.cipher_data, secret->current_cipher.maxlen);
  83         n->mtime = secret->current_cipher_set_time;
  84
  85         DLIST_ADD(samdump_state->secrets, n);
  86
  87         return NT_STATUS_OK;
  88 }
  89
  90 static NTSTATUS vampire_samdump_handle_trusted_domain(TALLOC_CTX *mem_ctx,
  91                                               struct samdump_state *samdump_state,
  92                                               struct netr_DELTA_ENUM *delta)
  93 {
  94         struct netr_DELTA_TRUSTED_DOMAIN *trusted_domain = delta->delta_union.trusted_domain;
  95         struct dom_sid *dom_sid = delta->delta_id_union.sid;
  96
  97         struct samdump_trusted_domain *n = talloc(samdump_state, struct samdump_trusted_domain);
  98
  99         n->name = talloc_strdup(n, trusted_domain->domain_name.string);
 100         n->sid = talloc_steal(n, dom_sid);
 101
 102         DLIST_ADD(samdump_state->trusted_domains, n);
 103
 104         return NT_STATUS_OK;
 105 }
 106
 107 static NTSTATUS libnet_samdump_fn(TALLOC_CTX *mem_ctx,
 108                                   void *private_data,
 109                                   enum netr_SamDatabaseID database,
 110                                   struct netr_DELTA_ENUM *delta,
 111                                   char **error_string)
 112 {
 113         NTSTATUS nt_status = NT_STATUS_OK;
 114         struct samdump_state *samdump_state = (struct samdump_state *)private_data;
 115
 116         *error_string = NULL;
 117         switch (delta->delta_type) {
 118         case NETR_DELTA_USER:
 119         {
 120                 /* not interested in builtin users */
 121                 if (database == SAM_DATABASE_DOMAIN) {
 122                         nt_status = vampire_samdump_handle_user(mem_ctx,
 123                                                                 delta);
 124                 }
 125                 break;
 126         }
 127         case NETR_DELTA_SECRET:
 128         {
 129                 nt_status = vampire_samdump_handle_secret(mem_ctx,
 130                                                           samdump_state,
 131                                                           delta);
 132                 break;
 133         }
 134         case NETR_DELTA_TRUSTED_DOMAIN:
 135         {
 136                 nt_status = vampire_samdump_handle_trusted_domain(mem_ctx,
 137                                                                   samdump_state,
 138                                                                   delta);
 139                 break;
 140         }
 141         default:
 142                 /* Can't dump them all right now */
 143                 break;
 144         }
 145         return nt_status;
 146 }
 147
 148 NTSTATUS libnet_SamDump(struct libnet_context *ctx, TALLOC_CTX *mem_ctx,
 149                         struct libnet_SamDump *r)
 150 {
 151         NTSTATUS nt_status;
 152         struct libnet_SamSync r2;
 153         struct samdump_state *samdump_state = talloc(mem_ctx, struct samdump_state);
 154
 155         struct samdump_trusted_domain *t;
 156         struct samdump_secret *s;
 157
 158         if (!samdump_state) {
 159                 return NT_STATUS_NO_MEMORY;
 160         }
 161
 162         samdump_state->secrets         = NULL;
 163         samdump_state->trusted_domains = NULL;
 164
 165         r2.out.error_string            = NULL;
 166         r2.in.binding_string           = r->in.binding_string;
 167         r2.in.init_fn                  = NULL;
 168         r2.in.delta_fn                 = libnet_samdump_fn;
 169         r2.in.fn_ctx                   = samdump_state;
 170         r2.in.machine_account          = r->in.machine_account;
 171         nt_status                      = libnet_SamSync_netlogon(ctx, samdump_state, &r2);
 172         r->out.error_string            = r2.out.error_string;
 173         talloc_steal(mem_ctx, r->out.error_string);
 174
 175         if (!NT_STATUS_IS_OK(nt_status)) {
 176                 talloc_free(samdump_state);
 177                 return nt_status;
 178         }
 179
 180         printf("Trusted domains, sids and secrets:\n");
 181         for (t=samdump_state->trusted_domains; t; t=t->next) {
 182                 char *secret_name = talloc_asprintf(mem_ctx, "G$$%s", t->name);
 183                 for (s=samdump_state->secrets; s; s=s->next) {
 184                         size_t converted_size = 0;
 185                         char *secret_string;
 186                         struct dom_sid_buf buf;
 187                         if (strcasecmp_m(s->name, secret_name) != 0) {
 188                                 continue;
 189                         }
 190                         if (!convert_string_talloc_handle(mem_ctx, lpcfg_iconv_handle(ctx->lp_ctx), CH_UTF16, CH_UNIX,
 191                                                   s->secret.data, s->secret.length,
 192                                                   (void **)&secret_string, &converted_size)) {
 193                                 r->out.error_string = talloc_asprintf(mem_ctx,
 194                                                                       "Could not convert secret for domain %s to a string",
 195                                                                       t->name);
 196                                 talloc_free(samdump_state);
 197                                 return NT_STATUS_INVALID_PARAMETER;
 198                         }
 199                         printf("%s\t%s\t%s\n",
 200                                t->name,
 201                                dom_sid_str_buf(t->sid, &buf),
 202                                secret_string);
 203                 }
 204         }
 205         talloc_free(samdump_state);
 206         return nt_status;
 207 }
 208