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
  29
  30 struct samdump_secret {
  31         struct samdump_secret *prev, *next;
  32         DATA_BLOB secret;
  33         char *name;
  34         NTTIME mtime;
  35 };
  36
  37 struct samdump_trusted_domain {
  38         struct samdump_trusted_domain *prev, *next;
  39         struct dom_sid *sid;
  40         char *name;
  41 };
  42
  43 struct samdump_state {
  44         struct samdump_secret *secrets;
  45         struct samdump_trusted_domain *trusted_domains;
  46 };
  47
  48 static NTSTATUS vampire_samdump_handle_user(TALLOC_CTX *mem_ctx,
  49                                             struct netr_DELTA_ENUM *delta)
  50 {
  51         uint32_t rid = delta->delta_id_union.rid;
  52         struct netr_DELTA_USER *user = delta->delta_union.user;
  53         const char *username = user->account_name.string;
  54         char *hex_lm_password;
  55         char *hex_nt_password;
  56
  57         hex_lm_password = smbpasswd_sethexpwd(mem_ctx,
  58                                               user->lm_password_present ? &user->lmpassword : NULL,
  59                                               user->acct_flags);
  60         hex_nt_password = smbpasswd_sethexpwd(mem_ctx,
  61                                               user->nt_password_present ? &user->ntpassword : NULL,
  62                                               user->acct_flags);
  63
  64         printf("%s:%d:%s:%s:%s:LCT-%08X\n", username,
  65                rid, hex_lm_password, hex_nt_password,
  66                smbpasswd_encode_acb_info(mem_ctx, user->acct_flags),
  67                (unsigned int)nt_time_to_unix(user->last_password_change));
  68
  69         return NT_STATUS_OK;
  70 }
  71
  72 static NTSTATUS vampire_samdump_handle_secret(TALLOC_CTX *mem_ctx,
  73                                               struct samdump_state *samdump_state,
  74                                               struct netr_DELTA_ENUM *delta)
  75 {
  76         struct netr_DELTA_SECRET *secret = delta->delta_union.secret;
  77         const char *name = delta->delta_id_union.name;
  78         struct samdump_secret *new = talloc(samdump_state, struct samdump_secret);
  79
  80         new->name = talloc_strdup(new, name);
  81         new->secret = data_blob_talloc(new, secret->current_cipher.cipher_data, secret->current_cipher.maxlen);
  82         new->mtime = secret->current_cipher_set_time;
  83
  84         DLIST_ADD(samdump_state->secrets, new);
  85
  86         return NT_STATUS_OK;
  87 }
  88
  89 static NTSTATUS vampire_samdump_handle_trusted_domain(TALLOC_CTX *mem_ctx,
  90                                               struct samdump_state *samdump_state,
  91                                               struct netr_DELTA_ENUM *delta)
  92 {
  93         struct netr_DELTA_TRUSTED_DOMAIN *trusted_domain = delta->delta_union.trusted_domain;
  94         struct dom_sid *dom_sid = delta->delta_id_union.sid;
  95
  96         struct samdump_trusted_domain *new = talloc(samdump_state, struct samdump_trusted_domain);
  97
  98         new->name = talloc_strdup(new, trusted_domain->domain_name.string);
  99         new->sid = talloc_steal(new, dom_sid);
 100
 101         DLIST_ADD(samdump_state->trusted_domains, new);
 102
 103         return NT_STATUS_OK;
 104 }
 105
 106 static NTSTATUS libnet_samdump_fn(TALLOC_CTX *mem_ctx,
 107                                   void *private,
 108                                   enum netr_SamDatabaseID database,
 109                                   struct netr_DELTA_ENUM *delta,
 110                                   char **error_string)
 111 {
 112         NTSTATUS nt_status = NT_STATUS_OK;
 113         struct samdump_state *samdump_state = (struct samdump_state *)private;
 114
 115         *error_string = NULL;
 116         switch (delta->delta_type) {
 117         case NETR_DELTA_USER:
 118         {
 119                 /* not interested in builtin users */
 120                 if (database == SAM_DATABASE_DOMAIN) {
 121                         nt_status = vampire_samdump_handle_user(mem_ctx,
 122                                                                 delta);
 123                 }
 124                 break;
 125         }
 126         case NETR_DELTA_SECRET:
 127         {
 128                 nt_status = vampire_samdump_handle_secret(mem_ctx,
 129                                                           samdump_state,
 130                                                           delta);
 131                 break;
 132         }
 133         case NETR_DELTA_TRUSTED_DOMAIN:
 134         {
 135                 nt_status = vampire_samdump_handle_trusted_domain(mem_ctx,
 136                                                                   samdump_state,
 137                                                                   delta);
 138                 break;
 139         }
 140         default:
 141                 /* Can't dump them all right now */
 142                 break;
 143         }
 144         return nt_status;
 145 }
 146
 147 NTSTATUS libnet_SamDump(struct libnet_context *ctx, TALLOC_CTX *mem_ctx,
 148                         struct libnet_SamDump *r)
 149 {
 150         NTSTATUS nt_status;
 151         struct libnet_SamSync r2;
 152         struct samdump_state *samdump_state = talloc(mem_ctx, struct samdump_state);
 153
 154         struct samdump_trusted_domain *t;
 155         struct samdump_secret *s;
 156
 157         if (!samdump_state) {
 158                 return NT_STATUS_NO_MEMORY;
 159         }
 160
 161         samdump_state->secrets         = NULL;
 162         samdump_state->trusted_domains = NULL;
 163
 164         r2.out.error_string            = NULL;
 165         r2.in.binding_string           = r->in.binding_string;
 166         r2.in.rid_crypt                = lp_parm_bool(ctx->lp_ctx, NULL, "vampire", "rid decrypt", true);
 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                         char *secret_string;
 185                         if (strcasecmp_m(s->name, secret_name) != 0) {
 186                                 continue;
 187                         }
 188                         if (convert_string_talloc(mem_ctx, lp_iconv_convenience(ctx->lp_ctx), CH_UTF16, CH_UNIX,
 189                                                   s->secret.data, s->secret.length,
 190                                                   (void **)&secret_string) == -1) {
 191                                 r->out.error_string = talloc_asprintf(mem_ctx,
 192                                                                       "Could not convert secret for domain %s to a string",
 193                                                                       t->name);
 194                                 talloc_free(samdump_state);
 195                                 return NT_STATUS_INVALID_PARAMETER;
 196                         }
 197                         printf("%s\t%s\t%s\n",
 198                                t->name, dom_sid_string(mem_ctx, t->sid),
 199                                secret_string);
 200                 }
 201         }
 202         talloc_free(samdump_state);
 203         return nt_status;
 204 }
 205