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 2 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, write to the Free Software
  20    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21 */
  22
  23
  24 #include "includes.h"
  25 #include "libnet/libnet.h"
  26 #include "librpc/gen_ndr/ndr_netlogon.h"
  27 #include "librpc/gen_ndr/ndr_samr.h"
  28 #include "dlinklist.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 creds_CredentialState *creds,
  51                                             struct netr_DELTA_ENUM *delta)
  52 {
  53         uint32_t rid = delta->delta_id_union.rid;
  54         struct netr_DELTA_USER *user = delta->delta_union.user;
  55         const char *username = user->account_name.string;
  56         char *hex_lm_password;
  57         char *hex_nt_password;
  58
  59         hex_lm_password = smbpasswd_sethexpwd(mem_ctx,
  60                                               user->lm_password_present ? &user->lmpassword : NULL,
  61                                               user->acct_flags);
  62         hex_nt_password = smbpasswd_sethexpwd(mem_ctx,
  63                                               user->nt_password_present ? &user->ntpassword : NULL,
  64                                               user->acct_flags);
  65
  66         printf("%s:%d:%s:%s:%s:LCT-%08X\n", username,
  67                rid, hex_lm_password, hex_nt_password,
  68                smbpasswd_encode_acb_info(mem_ctx, user->acct_flags),
  69                (unsigned int)nt_time_to_unix(user->last_password_change));
  70
  71         return NT_STATUS_OK;
  72 }
  73
  74 static NTSTATUS vampire_samdump_handle_secret(TALLOC_CTX *mem_ctx,
  75                                               struct samdump_state *samdump_state,
  76                                               struct creds_CredentialState *creds,
  77                                               struct netr_DELTA_ENUM *delta)
  78 {
  79         struct netr_DELTA_SECRET *secret = delta->delta_union.secret;
  80         const char *name = delta->delta_id_union.name;
  81         struct samdump_secret *new = talloc(samdump_state, struct samdump_secret);
  82
  83         new->name = talloc_steal(new, name);
  84         new->secret = data_blob_talloc(new, secret->current_cipher.cipher_data, secret->current_cipher.maxlen);
  85         new->mtime = secret->current_cipher_set_time;
  86
  87         DLIST_ADD(samdump_state->secrets, new);
  88
  89         return NT_STATUS_OK;
  90 }
  91
  92 static NTSTATUS vampire_samdump_handle_trusted_domain(TALLOC_CTX *mem_ctx,
  93                                               struct samdump_state *samdump_state,
  94                                               struct creds_CredentialState *creds,
  95                                               struct netr_DELTA_ENUM *delta)
  96 {
  97         struct netr_DELTA_TRUSTED_DOMAIN *trusted_domain = delta->delta_union.trusted_domain;
  98         struct dom_sid *dom_sid = delta->delta_id_union.sid;
  99
 100         struct samdump_trusted_domain *new = talloc(samdump_state, struct samdump_trusted_domain);
 101
 102         new->name = talloc_steal(new, trusted_domain->domain_name.string);
 103         new->sid = talloc_steal(new, dom_sid);
 104
 105         DLIST_ADD(samdump_state->trusted_domains, new);
 106
 107         return NT_STATUS_OK;
 108 }
 109
 110 static NTSTATUS libnet_samdump_fn(TALLOC_CTX *mem_ctx,
 111                                   void *private,
 112                                   struct creds_CredentialState *creds,
 113                                   enum netr_SamDatabaseID database,
 114                                   struct netr_DELTA_ENUM *delta,
 115                                   char **error_string)
 116 {
 117         NTSTATUS nt_status = NT_STATUS_OK;
 118         struct samdump_state *samdump_state = private;
 119
 120         *error_string = NULL;
 121         switch (delta->delta_type) {
 122         case NETR_DELTA_USER:
 123         {
 124                 /* not interested in builtin users */
 125                 if (database == SAM_DATABASE_DOMAIN) {
 126                         nt_status = vampire_samdump_handle_user(mem_ctx,
 127                                                                 creds,
 128                                                                 delta);
 129                         break;
 130                 }
 131         }
 132         case NETR_DELTA_SECRET:
 133         {
 134                 nt_status = vampire_samdump_handle_secret(mem_ctx,
 135                                                           samdump_state,
 136                                                           creds,
 137                                                           delta);
 138                 break;
 139         }
 140         case NETR_DELTA_TRUSTED_DOMAIN:
 141         {
 142                 nt_status = vampire_samdump_handle_trusted_domain(mem_ctx,
 143                                                                   samdump_state,
 144                                                                   creds,
 145                                                                   delta);
 146                 break;
 147         }
 148         default:
 149                 /* Can't dump them all right now */
 150                 break;
 151         }
 152         return nt_status;
 153 }
 154
 155 static NTSTATUS libnet_SamDump_netlogon(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, struct libnet_SamDump *r)
 156 {
 157         NTSTATUS nt_status;
 158         struct libnet_SamSync r2;
 159         struct samdump_state *samdump_state = talloc(mem_ctx, struct samdump_state);
 160
 161         struct samdump_trusted_domain *t;
 162         struct samdump_secret *s;
 163
 164         if (!samdump_state) {
 165                 return NT_STATUS_NO_MEMORY;
 166         }
 167
 168         samdump_state->secrets = NULL;
 169         samdump_state->trusted_domains = NULL;
 170
 171         r2.error_string = NULL;
 172         r2.delta_fn = libnet_samdump_fn;
 173         r2.fn_ctx = samdump_state;
 174         r2.machine_account = NULL; /* TODO:  Create a machine account, fill this in, and the delete it */
 175         nt_status = libnet_SamSync_netlogon(ctx, samdump_state, &r2);
 176         r->error_string = r2.error_string;
 177
 178         if (!NT_STATUS_IS_OK(nt_status)) {
 179                 talloc_free(samdump_state);
 180                 return nt_status;
 181         }
 182
 183         printf("Trusted domains, sids and secrets:\n");
 184         for (t=samdump_state->trusted_domains; t; t=t->next) {
 185                 char *secret_name = talloc_asprintf(mem_ctx, "G$$%s", t->name);
 186                 for (s=samdump_state->secrets; s; s=s->next) {
 187                         if (strcasecmp_m(s->name, secret_name) == 0) {
 188                                 char *secret_string;
 189                                 if (convert_string_talloc(mem_ctx, CH_UTF16, CH_UNIX,
 190                                                           s->secret.data, s->secret.length,
 191                                                           (void **)&secret_string) == -1) {
 192                                         r->error_string = talloc_asprintf(mem_ctx,
 193                                                                           "Could not convert secret for domain %s to a string\n",
 194                                                                           t->name);
 195                                         talloc_free(samdump_state);
 196                                         return NT_STATUS_INVALID_PARAMETER;
 197                                 }
 198                                 printf("%s\t%s\t%s\n",
 199                                        t->name, dom_sid_string(mem_ctx, t->sid),
 200                                        secret_string);
 201                         }
 202                 }
 203         }
 204         talloc_free(samdump_state);
 205         return nt_status;
 206 }
 207
 208
 209
 210 static NTSTATUS libnet_SamDump_generic(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, struct libnet_SamDump *r)
 211 {
 212         NTSTATUS nt_status;
 213         struct libnet_SamDump r2;
 214         r2.level = LIBNET_SAMDUMP_NETLOGON;
 215         r2.error_string = NULL;
 216         nt_status = libnet_SamDump(ctx, mem_ctx, &r2);
 217         r->error_string = r2.error_string;
 218
 219         return nt_status;
 220 }
 221
 222 NTSTATUS libnet_SamDump(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, struct libnet_SamDump *r)
 223 {
 224         switch (r->level) {
 225         case LIBNET_SAMDUMP_GENERIC:
 226                 return libnet_SamDump_generic(ctx, mem_ctx, r);
 227         case LIBNET_SAMDUMP_NETLOGON:
 228                 return libnet_SamDump_netlogon(ctx, mem_ctx, r);
 229         }
 230
 231         return NT_STATUS_INVALID_LEVEL;
 232 }