diff options
Diffstat (limited to 'source4/rpc_client/cli_netlogon.c')
| -rw-r--r-- | source4/rpc_client/cli_netlogon.c | 759 |
1 files changed, 759 insertions, 0 deletions
diff --git a/source4/rpc_client/cli_netlogon.c b/source4/rpc_client/cli_netlogon.c new file mode 100644 index 0000000000..18ffe07510 --- /dev/null +++ b/source4/rpc_client/cli_netlogon.c @@ -0,0 +1,759 @@ +/* + Unix SMB/CIFS implementation. + NT Domain Authentication SMB / MSRPC client + Copyright (C) Andrew Tridgell 1992-2000 + Copyright (C) Luke Kenneth Casson Leighton 1996-2000 + Copyright (C) Tim Potter 2001 + Copyright (C) Paul Ashton 1997. + Copyright (C) Jeremy Allison 1998. + Copyright (C) Andrew Bartlett 2001. + + 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 2 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, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +*/ + +#include "includes.h" + +/* LSA Request Challenge. Sends our challenge to server, then gets + server response. These are used to generate the credentials. */ + +NTSTATUS cli_net_req_chal(struct cli_state *cli, DOM_CHAL *clnt_chal, + DOM_CHAL *srv_chal) +{ + prs_struct qbuf, rbuf; + NET_Q_REQ_CHAL q; + NET_R_REQ_CHAL r; + NTSTATUS result = NT_STATUS_UNSUCCESSFUL; + + prs_init(&qbuf, MAX_PDU_FRAG_LEN, cli->mem_ctx, MARSHALL); + prs_init(&rbuf, 0, cli->mem_ctx, UNMARSHALL); + + /* create and send a MSRPC command with api NET_REQCHAL */ + + DEBUG(4,("cli_net_req_chal: LSA Request Challenge from %s to %s: %s\n", + lp_netbios_name(), cli->desthost, credstr(clnt_chal->data))); + + /* store the parameters */ + init_q_req_chal(&q, cli->srv_name_slash, lp_netbios_name(), clnt_chal); + + /* Marshall data and send request */ + + if (!net_io_q_req_chal("", &q, &qbuf, 0) || + !rpc_api_pipe_req(cli, NET_REQCHAL, &qbuf, &rbuf)) { + goto done; + } + + /* Unmarhall response */ + + if (!net_io_r_req_chal("", &r, &rbuf, 0)) { + goto done; + } + + result = r.status; + + /* Return result */ + + if (NT_STATUS_IS_OK(result)) { + memcpy(srv_chal, r.srv_chal.data, sizeof(srv_chal->data)); + } + + done: + prs_mem_free(&qbuf); + prs_mem_free(&rbuf); + + return result; +} + +/**************************************************************************** +LSA Authenticate 2 + +Send the client credential, receive back a server credential. +Ensure that the server credential returned matches the session key +encrypt of the server challenge originally received. JRA. +****************************************************************************/ + +NTSTATUS cli_net_auth2(struct cli_state *cli, + uint16 sec_chan, + uint32 neg_flags, DOM_CHAL *srv_chal) +{ + prs_struct qbuf, rbuf; + NET_Q_AUTH_2 q; + NET_R_AUTH_2 r; + NTSTATUS result = NT_STATUS_UNSUCCESSFUL; + + prs_init(&qbuf, MAX_PDU_FRAG_LEN, cli->mem_ctx, MARSHALL); + prs_init(&rbuf, 0, cli->mem_ctx, UNMARSHALL); + + /* create and send a MSRPC command with api NET_AUTH2 */ + + DEBUG(4,("cli_net_auth2: srv:%s acct:%s sc:%x mc: %s chal %s neg: %x\n", + cli->srv_name_slash, cli->mach_acct, sec_chan, lp_netbios_name(), + credstr(cli->clnt_cred.challenge.data), neg_flags)); + + /* store the parameters */ + init_q_auth_2(&q, cli->srv_name_slash, cli->mach_acct, + sec_chan, lp_netbios_name(), &cli->clnt_cred.challenge, + neg_flags); + + /* turn parameters into data stream */ + + if (!net_io_q_auth_2("", &q, &qbuf, 0) || + !rpc_api_pipe_req(cli, NET_AUTH2, &qbuf, &rbuf)) { + goto done; + } + + /* Unmarshall response */ + + if (!net_io_r_auth_2("", &r, &rbuf, 0)) { + goto done; + } + + result = r.status; + + if (NT_STATUS_IS_OK(result)) { + UTIME zerotime; + + /* + * Check the returned value using the initial + * server received challenge. + */ + + zerotime.time = 0; + if (cred_assert( &r.srv_chal, cli->sess_key, srv_chal, + zerotime) == 0) { + + /* + * Server replied with bad credential. Fail. + */ + DEBUG(0,("cli_net_auth2: server %s replied with bad credential (bad machine \ +password ?).\n", cli->desthost )); + result = NT_STATUS_ACCESS_DENIED; + goto done; + } + } + + done: + prs_mem_free(&qbuf); + prs_mem_free(&rbuf); + + return result; +} + +/**************************************************************************** +LSA Authenticate 3 + +Send the client credential, receive back a server credential. +Ensure that the server credential returned matches the session key +encrypt of the server challenge originally received. JRA. +****************************************************************************/ + +NTSTATUS cli_net_auth3(struct cli_state *cli, + uint16 sec_chan, + uint32 *neg_flags, DOM_CHAL *srv_chal) +{ + prs_struct qbuf, rbuf; + NET_Q_AUTH_3 q; + NET_R_AUTH_3 r; + NTSTATUS result = NT_STATUS_UNSUCCESSFUL; + + prs_init(&qbuf, MAX_PDU_FRAG_LEN, cli->mem_ctx, MARSHALL); + prs_init(&rbuf, 0, cli->mem_ctx, UNMARSHALL); + + /* create and send a MSRPC command with api NET_AUTH2 */ + + DEBUG(4,("cli_net_auth3: srv:%s acct:%s sc:%x mc: %s chal %s neg: %x\n", + cli->srv_name_slash, cli->mach_acct, sec_chan, lp_netbios_name(), + credstr(cli->clnt_cred.challenge.data), *neg_flags)); + + /* store the parameters */ + init_q_auth_3(&q, cli->srv_name_slash, cli->mach_acct, + sec_chan, lp_netbios_name(), &cli->clnt_cred.challenge, + *neg_flags); + + /* turn parameters into data stream */ + + if (!net_io_q_auth_3("", &q, &qbuf, 0) || + !rpc_api_pipe_req(cli, NET_AUTH3, &qbuf, &rbuf)) { + goto done; + } + + /* Unmarshall response */ + + if (!net_io_r_auth_3("", &r, &rbuf, 0)) { + goto done; + } + + result = r.status; + *neg_flags = r.srv_flgs.neg_flags; + + if (NT_STATUS_IS_OK(result)) { + UTIME zerotime; + + /* + * Check the returned value using the initial + * server received challenge. + */ + + zerotime.time = 0; + if (cred_assert( &r.srv_chal, cli->sess_key, srv_chal, + zerotime) == 0) { + + /* + * Server replied with bad credential. Fail. + */ + DEBUG(0,("cli_net_auth3: server %s replied with bad credential (bad machine \ +password ?).\n", cli->desthost )); + result = NT_STATUS_ACCESS_DENIED; + goto done; + } + } + + done: + prs_mem_free(&qbuf); + prs_mem_free(&rbuf); + + return result; +} + +/* Return the secure channel type depending on the server role. */ + +uint16 get_sec_chan(void) +{ + uint16 sec_chan = SEC_CHAN_WKSTA; + + switch (lp_server_role()) { + case ROLE_DOMAIN_PDC: + sec_chan = SEC_CHAN_DOMAIN; + break; + case ROLE_DOMAIN_BDC: + sec_chan = SEC_CHAN_BDC; + break; + } + + return sec_chan; +} + +/* Initialize domain session credentials */ + +NTSTATUS cli_nt_setup_creds(struct cli_state *cli, + uint16 sec_chan, + const unsigned char mach_pwd[16], uint32 *neg_flags, int level) +{ + DOM_CHAL clnt_chal; + DOM_CHAL srv_chal; + UTIME zerotime; + NTSTATUS result; + + /******************* Request Challenge ********************/ + + generate_random_buffer(clnt_chal.data, 8, False); + + /* send a client challenge; receive a server challenge */ + result = cli_net_req_chal(cli, &clnt_chal, &srv_chal); + + if (!NT_STATUS_IS_OK(result)) { + DEBUG(0,("cli_nt_setup_creds: request challenge failed\n")); + return result; + } + + /**************** Long-term Session key **************/ + + /* calculate the session key */ + cred_session_key(&clnt_chal, &srv_chal, mach_pwd, + cli->sess_key); + memset((char *)cli->sess_key+8, '\0', 8); + + /******************* Authenticate 2/3 ********************/ + + /* calculate auth-2/3 credentials */ + zerotime.time = 0; + cred_create(cli->sess_key, &clnt_chal, zerotime, &cli->clnt_cred.challenge); + + /* + * Send client auth-2/3 challenge. + * Receive an auth-2/3 challenge response and check it. + */ + switch (level) { + case 2: + result = cli_net_auth2(cli, sec_chan, *neg_flags, &srv_chal); + break; + case 3: + result = cli_net_auth3(cli, sec_chan, neg_flags, &srv_chal); + break; + default: + DEBUG(1,("cli_nt_setup_creds: unsupported auth level: %d\n", level)); + break; + } + + if (!NT_STATUS_IS_OK(result)) + DEBUG(1,("cli_nt_setup_creds: auth%d challenge failed %s\n", level, nt_errstr(result))); + + return result; +} + +/* Logon Control 2 */ + +NTSTATUS cli_netlogon_logon_ctrl2(struct cli_state *cli, TALLOC_CTX *mem_ctx, + uint32 query_level) +{ + prs_struct qbuf, rbuf; + NET_Q_LOGON_CTRL2 q; + NET_R_LOGON_CTRL2 r; + NTSTATUS result = NT_STATUS_UNSUCCESSFUL; + + ZERO_STRUCT(q); + ZERO_STRUCT(r); + + /* Initialise parse structures */ + + prs_init(&qbuf, MAX_PDU_FRAG_LEN, mem_ctx, MARSHALL); + prs_init(&rbuf, 0, mem_ctx, UNMARSHALL); + + /* Initialise input parameters */ + + init_net_q_logon_ctrl2(&q, cli->srv_name_slash, query_level); + + /* Marshall data and send request */ + + if (!net_io_q_logon_ctrl2("", &q, &qbuf, 0) || + !rpc_api_pipe_req(cli, NET_LOGON_CTRL2, &qbuf, &rbuf)) { + result = NT_STATUS_UNSUCCESSFUL; + goto done; + } + + /* Unmarshall response */ + + if (!net_io_r_logon_ctrl2("", &r, &rbuf, 0)) { + result = NT_STATUS_UNSUCCESSFUL; + goto done; + } + + result = r.status; + + done: + prs_mem_free(&qbuf); + prs_mem_free(&rbuf); + + return result; +} + +/**************************************************************************** +Generate the next creds to use. Yuck - this is a cut&paste from another +file. They should be combined at some stage. )-: +****************************************************************************/ + +static void gen_next_creds( struct cli_state *cli, DOM_CRED *new_clnt_cred) +{ + /* + * Create the new client credentials. + */ + + cli->clnt_cred.timestamp.time = time(NULL); + + memcpy(new_clnt_cred, &cli->clnt_cred, sizeof(*new_clnt_cred)); + + /* Calculate the new credentials. */ + cred_create(cli->sess_key, &(cli->clnt_cred.challenge), + new_clnt_cred->timestamp, &(new_clnt_cred->challenge)); +} + +/* Sam synchronisation */ + +NTSTATUS cli_netlogon_sam_sync(struct cli_state *cli, TALLOC_CTX *mem_ctx, DOM_CRED *ret_creds, + uint32 database_id, uint32 next_rid, uint32 *num_deltas, + SAM_DELTA_HDR **hdr_deltas, + SAM_DELTA_CTR **deltas) +{ + prs_struct qbuf, rbuf; + NET_Q_SAM_SYNC q; + NET_R_SAM_SYNC r; + NTSTATUS result = NT_STATUS_UNSUCCESSFUL; + DOM_CRED clnt_creds; + + ZERO_STRUCT(q); + ZERO_STRUCT(r); + + /* Initialise parse structures */ + + prs_init(&qbuf, MAX_PDU_FRAG_LEN, mem_ctx, MARSHALL); + prs_init(&rbuf, 0, mem_ctx, UNMARSHALL); + + /* Initialise input parameters */ + + gen_next_creds(cli, &clnt_creds); + + init_net_q_sam_sync(&q, cli->srv_name_slash, cli->clnt_name_slash + 2, + &clnt_creds, ret_creds, database_id, next_rid); + + /* Marshall data and send request */ + + if (!net_io_q_sam_sync("", &q, &qbuf, 0) || + !rpc_api_pipe_req(cli, NET_SAM_SYNC, &qbuf, &rbuf)) { + result = NT_STATUS_UNSUCCESSFUL; + goto done; + } + + /* Unmarshall response */ + + if (!net_io_r_sam_sync("", cli->sess_key, &r, &rbuf, 0)) { + result = NT_STATUS_UNSUCCESSFUL; + goto done; + } + + /* Return results */ + + result = r.status; + *num_deltas = r.num_deltas2; + *hdr_deltas = r.hdr_deltas; + *deltas = r.deltas; + + memcpy(ret_creds, &r.srv_creds, sizeof(*ret_creds)); + + done: + prs_mem_free(&qbuf); + prs_mem_free(&rbuf); + + return result; +} + +/* Sam synchronisation */ + +NTSTATUS cli_netlogon_sam_deltas(struct cli_state *cli, TALLOC_CTX *mem_ctx, + uint32 database_id, UINT64_S seqnum, + uint32 *num_deltas, + SAM_DELTA_HDR **hdr_deltas, + SAM_DELTA_CTR **deltas) +{ + prs_struct qbuf, rbuf; + NET_Q_SAM_DELTAS q; + NET_R_SAM_DELTAS r; + NTSTATUS result = NT_STATUS_UNSUCCESSFUL; + DOM_CRED clnt_creds; + + ZERO_STRUCT(q); + ZERO_STRUCT(r); + + /* Initialise parse structures */ + + prs_init(&qbuf, MAX_PDU_FRAG_LEN, mem_ctx, MARSHALL); + prs_init(&rbuf, 0, mem_ctx, UNMARSHALL); + + /* Initialise input parameters */ + + gen_next_creds(cli, &clnt_creds); + + init_net_q_sam_deltas(&q, cli->srv_name_slash, + cli->clnt_name_slash + 2, &clnt_creds, + database_id, seqnum); + + /* Marshall data and send request */ + + if (!net_io_q_sam_deltas("", &q, &qbuf, 0) || + !rpc_api_pipe_req(cli, NET_SAM_DELTAS, &qbuf, &rbuf)) { + result = NT_STATUS_UNSUCCESSFUL; + goto done; + } + + /* Unmarshall response */ + + if (!net_io_r_sam_deltas("", cli->sess_key, &r, &rbuf, 0)) { + result = NT_STATUS_UNSUCCESSFUL; + goto done; + } + + /* Return results */ + + result = r.status; + *num_deltas = r.num_deltas2; + *hdr_deltas = r.hdr_deltas; + *deltas = r.deltas; + + done: + prs_mem_free(&qbuf); + prs_mem_free(&rbuf); + + return result; +} + +/* Logon domain user */ + +NTSTATUS cli_netlogon_sam_logon(struct cli_state *cli, TALLOC_CTX *mem_ctx, + const char *username, const char *password, + int logon_type) +{ + prs_struct qbuf, rbuf; + NET_Q_SAM_LOGON q; + NET_R_SAM_LOGON r; + NTSTATUS result = NT_STATUS_UNSUCCESSFUL; + DOM_CRED clnt_creds, dummy_rtn_creds; + NET_ID_INFO_CTR ctr; + NET_USER_INFO_3 user; + int validation_level = 3; + + ZERO_STRUCT(q); + ZERO_STRUCT(r); + + /* Initialise parse structures */ + + prs_init(&qbuf, MAX_PDU_FRAG_LEN, mem_ctx, MARSHALL); + prs_init(&rbuf, 0, mem_ctx, UNMARSHALL); + + /* Initialise input parameters */ + + gen_next_creds(cli, &clnt_creds); + + q.validation_level = validation_level; + + memset(&dummy_rtn_creds, '\0', sizeof(dummy_rtn_creds)); + dummy_rtn_creds.timestamp.time = time(NULL); + + ctr.switch_value = logon_type; + + switch (logon_type) { + case INTERACTIVE_LOGON_TYPE: { + unsigned char lm_owf_user_pwd[16], nt_owf_user_pwd[16]; + + nt_lm_owf_gen(password, nt_owf_user_pwd, lm_owf_user_pwd); + + init_id_info1(&ctr.auth.id1, lp_workgroup(), + 0, /* param_ctrl */ + 0xdead, 0xbeef, /* LUID? */ + username, cli->clnt_name_slash, + cli->sess_key, lm_owf_user_pwd, + nt_owf_user_pwd); + + break; + } + case NET_LOGON_TYPE: { + uint8 chal[8]; + unsigned char local_lm_response[24]; + unsigned char local_nt_response[24]; + + generate_random_buffer(chal, 8, False); + + SMBencrypt(password, chal, local_lm_response); + SMBNTencrypt(password, chal, local_nt_response); + + init_id_info2(&ctr.auth.id2, lp_workgroup(), + 0, /* param_ctrl */ + 0xdead, 0xbeef, /* LUID? */ + username, cli->clnt_name_slash, chal, + local_lm_response, 24, local_nt_response, 24); + break; + } + default: + DEBUG(0, ("switch value %d not supported\n", + ctr.switch_value)); + goto done; + } + + init_sam_info(&q.sam_id, cli->srv_name_slash, lp_netbios_name(), + &clnt_creds, &dummy_rtn_creds, logon_type, + &ctr); + + /* Marshall data and send request */ + + if (!net_io_q_sam_logon("", &q, &qbuf, 0) || + !rpc_api_pipe_req(cli, NET_SAMLOGON, &qbuf, &rbuf)) { + goto done; + } + + /* Unmarshall response */ + + r.user = &user; + + if (!net_io_r_sam_logon("", &r, &rbuf, 0)) { + goto done; + } + + /* Return results */ + + result = r.status; + + done: + prs_mem_free(&qbuf); + prs_mem_free(&rbuf); + + return result; +} + + +/** + * Logon domain user with an 'network' SAM logon + * + * @param info3 Pointer to a NET_USER_INFO_3 already allocated by the caller. + **/ + +NTSTATUS cli_netlogon_sam_network_logon(struct cli_state *cli, TALLOC_CTX *mem_ctx, + const char *username, const char *domain, const char *workstation, + const uint8 chal[8], + DATA_BLOB lm_response, DATA_BLOB nt_response, + NET_USER_INFO_3 *info3) + +{ + prs_struct qbuf, rbuf; + NET_Q_SAM_LOGON q; + NET_R_SAM_LOGON r; + NTSTATUS result = NT_STATUS_UNSUCCESSFUL; + DOM_CRED clnt_creds, dummy_rtn_creds; + NET_ID_INFO_CTR ctr; + int validation_level = 3; + char *workstation_name_slash; + + ZERO_STRUCT(q); + ZERO_STRUCT(r); + + workstation_name_slash = talloc_asprintf(mem_ctx, "\\\\%s", workstation); + + if (!workstation_name_slash) { + DEBUG(0, ("talloc_asprintf failed!\n")); + return NT_STATUS_NO_MEMORY; + } + + /* Initialise parse structures */ + + prs_init(&qbuf, MAX_PDU_FRAG_LEN, mem_ctx, MARSHALL); + prs_init(&rbuf, 0, mem_ctx, UNMARSHALL); + + /* Initialise input parameters */ + + gen_next_creds(cli, &clnt_creds); + + q.validation_level = validation_level; + + memset(&dummy_rtn_creds, '\0', sizeof(dummy_rtn_creds)); + dummy_rtn_creds.timestamp.time = time(NULL); + + ctr.switch_value = NET_LOGON_TYPE; + + init_id_info2(&ctr.auth.id2, domain, + 0, /* param_ctrl */ + 0xdead, 0xbeef, /* LUID? */ + username, workstation_name_slash, (const uchar*)chal, + lm_response.data, lm_response.length, nt_response.data, nt_response.length); + + init_sam_info(&q.sam_id, cli->srv_name_slash, lp_netbios_name(), + &clnt_creds, &dummy_rtn_creds, NET_LOGON_TYPE, + &ctr); + + /* Marshall data and send request */ + + if (!net_io_q_sam_logon("", &q, &qbuf, 0) || + !rpc_api_pipe_req(cli, NET_SAMLOGON, &qbuf, &rbuf)) { + goto done; + } + + /* Unmarshall response */ + + r.user = info3; + + if (!net_io_r_sam_logon("", &r, &rbuf, 0)) { + goto done; + } + + /* Return results */ + + result = r.status; + + done: + prs_mem_free(&qbuf); + prs_mem_free(&rbuf); + + return result; +} + +/*************************************************************************** +LSA Server Password Set. +****************************************************************************/ + +NTSTATUS cli_net_srv_pwset(struct cli_state *cli, TALLOC_CTX *mem_ctx, + const char *machine_name, uint8 hashed_mach_pwd[16]) +{ + prs_struct rbuf; + prs_struct qbuf; + DOM_CRED new_clnt_cred; + NET_Q_SRV_PWSET q_s; + uint16 sec_chan_type = 2; + NTSTATUS nt_status; + char *mach_acct; + + gen_next_creds( cli, &new_clnt_cred); + + prs_init(&qbuf , 1024, mem_ctx, MARSHALL); + prs_init(&rbuf, 0, mem_ctx, UNMARSHALL); + + /* create and send a MSRPC command with api NET_SRV_PWSET */ + + mach_acct = talloc_asprintf(mem_ctx, "%s$", machine_name); + + if (!mach_acct) { + DEBUG(0,("talloc_asprintf failed!\n")); + nt_status = NT_STATUS_NO_MEMORY; + goto done; + } + + DEBUG(4,("cli_net_srv_pwset: srv:%s acct:%s sc: %d mc: %s clnt %s %x\n", + cli->srv_name_slash, mach_acct, sec_chan_type, machine_name, + credstr(new_clnt_cred.challenge.data), new_clnt_cred.timestamp.time)); + + /* store the parameters */ + init_q_srv_pwset(&q_s, cli->srv_name_slash, cli->sess_key, + mach_acct, sec_chan_type, machine_name, + &new_clnt_cred, (char *)hashed_mach_pwd); + + /* turn parameters into data stream */ + if(!net_io_q_srv_pwset("", &q_s, &qbuf, 0)) { + DEBUG(0,("cli_net_srv_pwset: Error : failed to marshall NET_Q_SRV_PWSET struct.\n")); + nt_status = NT_STATUS_UNSUCCESSFUL; + goto done; + } + + /* send the data on \PIPE\ */ + if (rpc_api_pipe_req(cli, NET_SRVPWSET, &qbuf, &rbuf)) + { + NET_R_SRV_PWSET r_s; + + if (!net_io_r_srv_pwset("", &r_s, &rbuf, 0)) { + nt_status = NT_STATUS_UNSUCCESSFUL; + goto done; + } + + nt_status = r_s.status; + + if (!NT_STATUS_IS_OK(r_s.status)) + { + /* report error code */ + DEBUG(0,("cli_net_srv_pwset: %s\n", nt_errstr(nt_status))); + goto done; + } + + /* Update the credentials. */ + if (!clnt_deal_with_creds(cli->sess_key, &(cli->clnt_cred), &(r_s.srv_cred))) + { + /* + * Server replied with bad credential. Fail. + */ + DEBUG(0,("cli_net_srv_pwset: server %s replied with bad credential (bad machine \ +password ?).\n", cli->desthost )); + nt_status = NT_STATUS_UNSUCCESSFUL; + } + } + + done: + prs_mem_free(&qbuf); + prs_mem_free(&rbuf); + + return nt_status; +} + |