/* Unix SMB/CIFS implementation. RPC pipe client Copyright (C) Tim Potter 2000-2001, Copyright (C) Andrew Tridgell 1992-1997,2000, Copyright (C) Rafal Szczesniak 2002. Copyright (C) Jeremy Allison 2005. Copyright (C) Guenther Deschner 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" /* User change password */ NTSTATUS rpccli_samr_chgpasswd_user(struct rpc_pipe_client *cli, TALLOC_CTX *mem_ctx, const char *username, const char *newpassword, const char *oldpassword) { NTSTATUS result = NT_STATUS_UNSUCCESSFUL; struct samr_CryptPassword new_nt_password; struct samr_CryptPassword new_lm_password; struct samr_Password old_nt_hash_enc; struct samr_Password old_lanman_hash_enc; uchar old_nt_hash[16]; uchar old_lanman_hash[16]; uchar new_nt_hash[16]; uchar new_lanman_hash[16]; struct lsa_String server, account; DEBUG(10,("rpccli_samr_chgpasswd_user\n")); init_lsa_String(&server, cli->srv_name_slash); init_lsa_String(&account, username); /* Calculate the MD4 hash (NT compatible) of the password */ E_md4hash(oldpassword, old_nt_hash); E_md4hash(newpassword, new_nt_hash); if (lp_client_lanman_auth() && E_deshash(newpassword, new_lanman_hash) && E_deshash(oldpassword, old_lanman_hash)) { /* E_deshash returns false for 'long' passwords (> 14 DOS chars). This allows us to match Win2k, which does not store a LM hash for these passwords (which would reduce the effective password length to 14) */ encode_pw_buffer(new_lm_password.data, newpassword, STR_UNICODE); SamOEMhash(new_lm_password.data, old_nt_hash, 516); E_old_pw_hash(new_nt_hash, old_lanman_hash, old_lanman_hash_enc.hash); } else { ZERO_STRUCT(new_lm_password); ZERO_STRUCT(old_lanman_hash_enc); } encode_pw_buffer(new_nt_password.data, newpassword, STR_UNICODE); SamOEMhash(new_nt_password.data, old_nt_hash, 516); E_old_pw_hash(new_nt_hash, old_nt_hash, old_nt_hash_enc.hash); result = rpccli_samr_ChangePasswordUser2(cli, mem_ctx, &server, &account, &new_nt_password, &old_nt_hash_enc, true, &new_lm_password, &old_lanman_hash_enc); return result; } /* User change password given blobs */ NTSTATUS rpccli_samr_chng_pswd_auth_crap(struct rpc_pipe_client *cli, TALLOC_CTX *mem_ctx, const char *username, DATA_BLOB new_nt_password_blob, DATA_BLOB old_nt_hash_enc_blob, DATA_BLOB new_lm_password_blob, DATA_BLOB old_lm_hash_enc_blob) { NTSTATUS result = NT_STATUS_UNSUCCESSFUL; struct samr_CryptPassword new_nt_password; struct samr_CryptPassword new_lm_password; struct samr_Password old_nt_hash_enc; struct samr_Password old_lm_hash_enc; struct lsa_String server, account; DEBUG(10,("rpccli_samr_chng_pswd_auth_crap\n")); init_lsa_String(&server, cli->srv_name_slash); init_lsa_String(&account, username); memcpy(&new_nt_password.data, new_nt_password_blob.data, 516); memcpy(&new_lm_password.data, new_lm_password_blob.data, 516); memcpy(&old_nt_hash_enc.hash, old_nt_hash_enc_blob.data, 16); memcpy(&old_lm_hash_enc.hash, old_lm_hash_enc_blob.data, 16); result = rpccli_samr_ChangePasswordUser2(cli, mem_ctx, &server, &account, &new_nt_password, &old_nt_hash_enc, true, &new_lm_password, &old_lm_hash_enc); return result; } /* change password 3 */ NTSTATUS rpccli_samr_chgpasswd3(struct rpc_pipe_client *cli, TALLOC_CTX *mem_ctx, const char *username, const char *newpassword, const char *oldpassword, struct samr_DomInfo1 **dominfo1, struct samr_ChangeReject **reject) { NTSTATUS status; struct samr_CryptPassword new_nt_password; struct samr_CryptPassword new_lm_password; struct samr_Password old_nt_hash_enc; struct samr_Password old_lanman_hash_enc; uchar old_nt_hash[16]; uchar old_lanman_hash[16]; uchar new_nt_hash[16]; uchar new_lanman_hash[16]; struct lsa_String server, account; DEBUG(10,("rpccli_samr_chgpasswd_user3\n")); init_lsa_String(&server, cli->srv_name_slash); init_lsa_String(&account, username); /* Calculate the MD4 hash (NT compatible) of the password */ E_md4hash(oldpassword, old_nt_hash); E_md4hash(newpassword, new_nt_hash); if (lp_client_lanman_auth() && E_deshash(newpassword, new_lanman_hash) && E_deshash(oldpassword, old_lanman_hash)) { /* E_deshash returns false for 'long' passwords (> 14 DOS chars). This allows us to match Win2k, which does not store a LM hash for these passwords (which would reduce the effective password length to 14) */ encode_pw_buffer(new_lm_password.data, newpassword, STR_UNICODE); SamOEMhash(new_lm_password.data, old_nt_hash, 516); E_old_pw_hash(new_nt_hash, old_lanman_hash, old_lanman_hash_enc.hash); } else { ZERO_STRUCT(new_lm_password); ZERO_STRUCT(old_lanman_hash_enc); } encode_pw_buffer(new_nt_password.data, newpassword, STR_UNICODE); SamOEMhash(new_nt_password.data, old_nt_hash, 516); E_old_pw_hash(new_nt_hash, old_nt_hash, old_nt_hash_enc.hash); status = rpccli_samr_ChangePasswordUser3(cli, mem_ctx, &server, &account, &new_nt_password, &old_nt_hash_enc, true, &new_lm_password, &old_lanman_hash_enc, NULL, dominfo1, reject); return status; } /* This function returns the bizzare set of (max_entries, max_size) required for the QueryDisplayInfo RPC to actually work against a domain controller with large (10k and higher) numbers of users. These values were obtained by inspection using ethereal and NT4 running User Manager. */ void get_query_dispinfo_params(int loop_count, uint32 *max_entries, uint32 *max_size) { switch(loop_count) { case 0: *max_entries = 512; *max_size = 16383; break; case 1: *max_entries = 1024; *max_size = 32766; break; case 2: *max_entries = 2048; *max_size = 65532; break; case 3: *max_entries = 4096; *max_size = 131064; break; default: /* loop_count >= 4 */ *max_entries = 4096; *max_size = 131071; break; } } NTSTATUS rpccli_try_samr_connects(struct rpc_pipe_client *cli, TALLOC_CTX *mem_ctx, uint32_t access_mask, POLICY_HND *connect_pol) { NTSTATUS status; union samr_ConnectInfo info_in, info_out; struct samr_ConnectInfo1 info1; uint32_t lvl_out = 0; ZERO_STRUCT(info1); info1.client_version = SAMR_CONNECT_W2K; info_in.info1 = info1; status = rpccli_samr_Connect5(cli, mem_ctx, cli->srv_name_slash, access_mask, 1, &info_in, &lvl_out, &info_out, connect_pol); if (NT_STATUS_IS_OK(status)) { return status; } status = rpccli_samr_Connect4(cli, mem_ctx, cli->srv_name_slash, SAMR_CONNECT_W2K, access_mask, connect_pol); if (NT_STATUS_IS_OK(status)) { return status; } status = rpccli_samr_Connect2(cli, mem_ctx, cli->srv_name_slash, access_mask, connect_pol); return status; }