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 "dlinklist.h"
  27
  28
  29 struct samdump_secret {
  30         struct samdump_secret *prev, *next;
  31         DATA_BLOB secret;
  32         char *name;
  33         NTTIME mtime;
  34 };
  35
  36 struct samdump_trusted_domain {
  37         struct samdump_trusted_domain *prev, *next;
  38         struct dom_sid *sid;
  39         char *name;
  40 };
  41
  42 struct samdump_state {
  43         struct samdump_secret *secrets;
  44         struct samdump_trusted_domain *trusted_domains;
  45 };
  46
  47 static NTSTATUS vampire_samdump_handle_user(TALLOC_CTX *mem_ctx,
  48                                             struct creds_CredentialState *creds,
  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 creds_CredentialState *creds,
  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 *new = talloc(samdump_state, struct samdump_secret);
  80
  81         new->name = talloc_steal(new, name);
  82         new->secret = data_blob_talloc(new, secret->current_cipher.cipher_data, secret->current_cipher.maxlen);
  83         new->mtime = secret->current_cipher_set_time;
  84
  85         DLIST_ADD(samdump_state->secrets, new);
  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 creds_CredentialState *creds,
  93                                               struct netr_DELTA_ENUM *delta)
  94 {
  95         struct netr_DELTA_TRUSTED_DOMAIN *trusted_domain = delta->delta_union.trusted_domain;
  96         struct dom_sid *dom_sid = delta->delta_id_union.sid;
  97
  98         struct samdump_trusted_domain *new = talloc(samdump_state, struct samdump_trusted_domain);
  99
 100         new->name = talloc_steal(new, trusted_domain->domain_name.string);
 101         new->sid = talloc_steal(new, dom_sid);
 102
 103         DLIST_ADD(samdump_state->trusted_domains, new);
 104
 105         return NT_STATUS_OK;
 106 }
 107
 108 static NTSTATUS libnet_samdump_fn(TALLOC_CTX *mem_ctx,
 109                                   void *private,
 110                                   struct creds_CredentialState *creds,
 111                                   enum netr_SamDatabaseID database,
 112                                   struct netr_DELTA_ENUM *delta,
 113                                   char **error_string)
 114 {
 115         NTSTATUS nt_status = NT_STATUS_OK;
 116         struct samdump_state *samdump_state = private;
 117
 118         *error_string = NULL;
 119         switch (delta->delta_type) {
 120         case NETR_DELTA_USER:
 121         {
 122                 /* not interested in builtin users */
 123                 if (database == SAM_DATABASE_DOMAIN) {
 124                         nt_status = vampire_samdump_handle_user(mem_ctx,
 125                                                                 creds,
 126                                                                 delta);
 127                         break;
 128                 }
 129         }
 130         case NETR_DELTA_SECRET:
 131         {
 132                 nt_status = vampire_samdump_handle_secret(mem_ctx,
 133                                                           samdump_state,
 134                                                           creds,
 135                                                           delta);
 136                 break;
 137         }
 138         case NETR_DELTA_TRUSTED_DOMAIN:
 139         {
 140                 nt_status = vampire_samdump_handle_trusted_domain(mem_ctx,
 141                                                                   samdump_state,
 142                                                                   creds,
 143                                                                   delta);
 144                 break;
 145         }
 146         default:
 147                 /* Can't dump them all right now */
 148                 break;
 149         }
 150         return nt_status;
 151 }
 152
 153 static NTSTATUS libnet_SamDump_netlogon(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, struct libnet_SamDump *r)
 154 {
 155         NTSTATUS nt_status;
 156         struct libnet_SamSync r2;
 157         struct samdump_state *samdump_state = talloc(mem_ctx, struct samdump_state);
 158
 159         struct samdump_trusted_domain *t;
 160         struct samdump_secret *s;
 161
 162         if (!samdump_state) {
 163                 return NT_STATUS_NO_MEMORY;
 164         }
 165
 166         samdump_state->secrets = NULL;
 167         samdump_state->trusted_domains = NULL;
 168
 169         r2.error_string = NULL;
 170         r2.delta_fn = libnet_samdump_fn;
 171         r2.fn_ctx = samdump_state;
 172         r2.machine_account = NULL; /* TODO:  Create a machine account, fill this in, and the delete it */
 173         nt_status = libnet_SamSync_netlogon(ctx, samdump_state, &r2);
 174         r->error_string = r2.error_string;
 175
 176         if (!NT_STATUS_IS_OK(nt_status)) {
 177                 talloc_free(samdump_state);
 178                 return nt_status;
 179         }
 180
 181         printf("Trusted domains, sids and secrets:\n");
 182         for (t=samdump_state->trusted_domains; t; t=t->next) {
 183                 char *secret_name = talloc_asprintf(mem_ctx, "G$$%s", t->name);
 184                 for (s=samdump_state->secrets; s; s=s->next) {
 185                         if (strcasecmp_m(s->name, secret_name) == 0) {
 186                                 char *secret_string;
 187                                 if (convert_string_talloc(mem_ctx, CH_UTF16, CH_UNIX,
 188                                                           s->secret.data, s->secret.length,
 189                                                           (void **)&secret_string) == -1) {
 190                                         r->error_string = talloc_asprintf(mem_ctx,
 191                                                                           "Could not convert secret for domain %s to a string\n",
 192                                                                           t->name);
 193                                         talloc_free(samdump_state);
 194                                         return NT_STATUS_INVALID_PARAMETER;
 195                                 }
 196                                 printf("%s\t%s\t%s\n",
 197                                        t->name, dom_sid_string(mem_ctx, t->sid),
 198                                        secret_string);
 199                         }
 200                 }
 201         }
 202         talloc_free(samdump_state);
 203         return nt_status;
 204 }
 205
 206
 207
 208 static NTSTATUS libnet_SamDump_generic(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, struct libnet_SamDump *r)
 209 {
 210         NTSTATUS nt_status;
 211         struct libnet_SamDump r2;
 212         r2.level = LIBNET_SAMDUMP_NETLOGON;
 213         r2.error_string = NULL;
 214         nt_status = libnet_SamDump(ctx, mem_ctx, &r2);
 215         r->error_string = r2.error_string;
 216
 217         return nt_status;
 218 }
 219
 220 NTSTATUS libnet_SamDump(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, struct libnet_SamDump *r)
 221 {
 222         switch (r->level) {
 223         case LIBNET_SAMDUMP_GENERIC:
 224                 return libnet_SamDump_generic(ctx, mem_ctx, r);
 225         case LIBNET_SAMDUMP_NETLOGON:
 226                 return libnet_SamDump_netlogon(ctx, mem_ctx, r);
 227         }
 228
 229         return NT_STATUS_INVALID_LEVEL;
 230 }