diff options
| -rw-r--r-- | source3/Makefile.in | 1 | ||||
| -rw-r--r-- | source3/libnet/libnet_samsync.c | 188 |
2 files changed, 189 insertions, 0 deletions
diff --git a/source3/Makefile.in b/source3/Makefile.in index 917b0bfe36..3eb11421d0 100644 --- a/source3/Makefile.in +++ b/source3/Makefile.in @@ -892,6 +892,7 @@ SMBCONFTORT_OBJ = $(SMBCONFTORT_OBJ0) \ $(POPT_LIB_OBJ) LIBNET_OBJ = libnet/libnet_join.o \ + libnet/libnet_samsync.o \ librpc/gen_ndr/ndr_libnet_join.o NET_OBJ1 = utils/net.o utils/net_ads.o utils/net_help.o \ diff --git a/source3/libnet/libnet_samsync.c b/source3/libnet/libnet_samsync.c new file mode 100644 index 0000000000..e45a84568c --- /dev/null +++ b/source3/libnet/libnet_samsync.c @@ -0,0 +1,188 @@ +/* + Unix SMB/CIFS implementation. + + Extract the user/system database from a remote SamSync server + + Copyright (C) Andrew Bartlett <abartlet@samba.org> 2004-2005 + Copyright (C) Guenther Deschner <gd@samba.org> 2008 + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. +*/ + + +#include "includes.h" + +/** + * Decrypt and extract the user's passwords. + * + * The writes decrypted (no longer 'RID encrypted' or arcfour encrypted) + * passwords back into the structure + */ + +static NTSTATUS fix_user(TALLOC_CTX *mem_ctx, + DATA_BLOB *session_key, + bool rid_crypt, + enum netr_SamDatabaseID database_id, + struct netr_DELTA_ENUM *delta) +{ + + uint32_t rid = delta->delta_id_union.rid; + struct netr_DELTA_USER *user = delta->delta_union.user; + struct samr_Password lm_hash; + struct samr_Password nt_hash; + const char *username = user->account_name.string; + + if (rid_crypt) { + if (user->lm_password_present) { + sam_pwd_hash(rid, user->lmpassword.hash, lm_hash.hash, 0); + user->lmpassword = lm_hash; + } + + if (user->nt_password_present) { + sam_pwd_hash(rid, user->ntpassword.hash, nt_hash.hash, 0); + user->ntpassword = nt_hash; + } + } + + if (user->user_private_info.SensitiveData) { + DATA_BLOB data; + struct netr_USER_KEYS keys; + enum ndr_err_code ndr_err; + data.data = user->user_private_info.SensitiveData; + data.length = user->user_private_info.DataLength; + SamOEMhashBlob(data.data, data.length, session_key); + user->user_private_info.SensitiveData = data.data; + user->user_private_info.DataLength = data.length; + + ndr_err = ndr_pull_struct_blob(&data, mem_ctx, &keys, + (ndr_pull_flags_fn_t)ndr_pull_netr_USER_KEYS); + if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) { + dump_data(10, data.data, data.length); + return ndr_map_error2ntstatus(ndr_err); + } + + if (keys.keys.keys2.lmpassword.length == 16) { + if (rid_crypt) { + sam_pwd_hash(rid, + keys.keys.keys2.lmpassword.pwd.hash, + lm_hash.hash, 0); + user->lmpassword = lm_hash; + } else { + user->lmpassword = keys.keys.keys2.lmpassword.pwd; + } + user->lm_password_present = true; + } + if (keys.keys.keys2.ntpassword.length == 16) { + if (rid_crypt) { + sam_pwd_hash(rid, + keys.keys.keys2.ntpassword.pwd.hash, + nt_hash.hash, 0); + user->ntpassword = nt_hash; + } else { + user->ntpassword = keys.keys.keys2.ntpassword.pwd; + } + user->nt_password_present = true; + } + /* TODO: rid decrypt history fields */ + } + return NT_STATUS_OK; +} + +/** + * Decrypt and extract the secrets + * + * The writes decrypted secrets back into the structure + */ +static NTSTATUS fix_secret(TALLOC_CTX *mem_ctx, + DATA_BLOB *session_key, + enum netr_SamDatabaseID database_id, + struct netr_DELTA_ENUM *delta) +{ + struct netr_DELTA_SECRET *secret = delta->delta_union.secret; + + SamOEMhashBlob(secret->current_cipher.cipher_data, + secret->current_cipher.maxlen, + session_key); + + SamOEMhashBlob(secret->old_cipher.cipher_data, + secret->old_cipher.maxlen, + session_key); + + return NT_STATUS_OK; +} + +/** + * Fix up the delta, dealing with encryption issues so that the final + * callback need only do the printing or application logic + */ + +static NTSTATUS samsync_fix_delta(TALLOC_CTX *mem_ctx, + DATA_BLOB *session_key, + bool rid_crypt, + enum netr_SamDatabaseID database_id, + struct netr_DELTA_ENUM *delta) +{ + NTSTATUS status = NT_STATUS_OK; + + switch (delta->delta_type) { + case NETR_DELTA_USER: + + status = fix_user(mem_ctx, + session_key, + rid_crypt, + database_id, + delta); + break; + case NETR_DELTA_SECRET: + + status = fix_secret(mem_ctx, + session_key, + database_id, + delta); + break; + default: + break; + } + + return status; +} + +/** + * Fix up the delta, dealing with encryption issues so that the final + * callback need only do the printing or application logic + */ + +NTSTATUS samsync_fix_delta_array(TALLOC_CTX *mem_ctx, + DATA_BLOB *session_key, + bool rid_crypt, + enum netr_SamDatabaseID database_id, + struct netr_DELTA_ENUM_ARRAY *r) +{ + NTSTATUS status; + int i; + + for (i = 0; i < r->num_deltas; i++) { + + status = samsync_fix_delta(mem_ctx, + session_key, + rid_crypt, + database_id, + &r->delta_enum[i]); + if (!NT_STATUS_IS_OK(status)) { + return status; + } + } + + return NT_STATUS_OK; +} |