diff options
Diffstat (limited to 'source3/rpc_server/srv_netlog_nt.c')
| -rw-r--r-- | source3/rpc_server/srv_netlog_nt.c | 1414 |
1 files changed, 1414 insertions, 0 deletions
diff --git a/source3/rpc_server/srv_netlog_nt.c b/source3/rpc_server/srv_netlog_nt.c new file mode 100644 index 0000000000..4e211cfb81 --- /dev/null +++ b/source3/rpc_server/srv_netlog_nt.c @@ -0,0 +1,1414 @@ +/* + * Unix SMB/CIFS implementation. + * RPC Pipe client / server routines + * Copyright (C) Andrew Tridgell 1992-1997, + * Copyright (C) Luke Kenneth Casson Leighton 1996-1997, + * Copyright (C) Paul Ashton 1997. + * Copyright (C) Jeremy Allison 1998-2001. + * Copyright (C) Andrew Bartlett 2001. + * 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/>. + */ + +/* This is the implementation of the netlogon pipe. */ + +#include "includes.h" + +extern userdom_struct current_user_info; + +#undef DBGC_CLASS +#define DBGC_CLASS DBGC_RPC_SRV + +/************************************************************************* + init_net_r_req_chal: + *************************************************************************/ + +static void init_net_r_req_chal(struct netr_Credential *r, + struct netr_Credential *srv_chal) +{ + DEBUG(6,("init_net_r_req_chal: %d\n", __LINE__)); + + memcpy(r->data, srv_chal->data, sizeof(r->data)); +} + +/******************************************************************* + Inits a netr_NETLOGON_INFO_1 structure. +********************************************************************/ + +static void init_netlogon_info1(struct netr_NETLOGON_INFO_1 *r, + uint32_t flags, + uint32_t pdc_connection_status) +{ + r->flags = flags; + r->pdc_connection_status = pdc_connection_status; +} + +/******************************************************************* + Inits a netr_NETLOGON_INFO_2 structure. +********************************************************************/ + +static void init_netlogon_info2(struct netr_NETLOGON_INFO_2 *r, + uint32_t flags, + uint32_t pdc_connection_status, + const char *trusted_dc_name, + uint32_t tc_connection_status) +{ + r->flags = flags; + r->pdc_connection_status = pdc_connection_status; + r->trusted_dc_name = trusted_dc_name; + r->tc_connection_status = tc_connection_status; +} + +/******************************************************************* + Inits a netr_NETLOGON_INFO_3 structure. +********************************************************************/ + +static void init_netlogon_info3(struct netr_NETLOGON_INFO_3 *r, + uint32_t flags, + uint32_t logon_attempts) +{ + r->flags = flags; + r->logon_attempts = logon_attempts; +} + +/************************************************************************* + _netr_LogonControl + *************************************************************************/ + +WERROR _netr_LogonControl(pipes_struct *p, + struct netr_LogonControl *r) +{ + struct netr_NETLOGON_INFO_1 *info1; + uint32_t flags = 0x0; + uint32_t pdc_connection_status = W_ERROR_V(WERR_OK); + + /* Setup the Logon Control response */ + + switch (r->in.level) { + case 1: + info1 = TALLOC_ZERO_P(p->mem_ctx, struct netr_NETLOGON_INFO_1); + if (!info1) { + return WERR_NOMEM; + } + init_netlogon_info1(info1, + flags, + pdc_connection_status); + r->out.info->info1 = info1; + break; + default: + return WERR_UNKNOWN_LEVEL; + } + + return WERR_OK; +} + +/**************************************************************************** +Send a message to smbd to do a sam synchronisation +**************************************************************************/ + +static void send_sync_message(void) +{ + DEBUG(3, ("sending sam synchronisation message\n")); + message_send_all(smbd_messaging_context(), MSG_SMB_SAM_SYNC, NULL, 0, + NULL); +} + +/************************************************************************* + _netr_LogonControl2 + *************************************************************************/ + +WERROR _netr_LogonControl2(pipes_struct *p, + struct netr_LogonControl2 *r) +{ + uint32 flags = 0x0; + uint32 pdc_connection_status = 0x0; + uint32 logon_attempts = 0x0; + uint32 tc_status; + fstring dc_name2; + const char *dc_name = NULL; + struct sockaddr_storage dc_ss; + const char *domain = NULL; + struct netr_NETLOGON_INFO_1 *info1; + struct netr_NETLOGON_INFO_2 *info2; + struct netr_NETLOGON_INFO_3 *info3; + + tc_status = W_ERROR_V(WERR_NO_SUCH_DOMAIN); + + switch (r->in.function_code) { + case NETLOGON_CONTROL_TC_QUERY: + domain = r->in.data->domain; + + if ( !is_trusted_domain( domain ) ) + break; + + if ( !get_dc_name( domain, NULL, dc_name2, &dc_ss ) ) { + tc_status = W_ERROR_V(WERR_NO_LOGON_SERVERS); + break; + } + + dc_name = talloc_asprintf(p->mem_ctx, "\\\\%s", dc_name2); + if (!dc_name) { + return WERR_NOMEM; + } + + tc_status = W_ERROR_V(WERR_OK); + + break; + + case NETLOGON_CONTROL_REDISCOVER: + domain = r->in.data->domain; + + if ( !is_trusted_domain( domain ) ) + break; + + if ( !get_dc_name( domain, NULL, dc_name2, &dc_ss ) ) { + tc_status = W_ERROR_V(WERR_NO_LOGON_SERVERS); + break; + } + + dc_name = talloc_asprintf(p->mem_ctx, "\\\\%s", dc_name2); + if (!dc_name) { + return WERR_NOMEM; + } + + tc_status = W_ERROR_V(WERR_OK); + + break; + + default: + /* no idea what this should be */ + DEBUG(0,("_netr_LogonControl2: unimplemented function level [%d]\n", + r->in.function_code)); + return WERR_UNKNOWN_LEVEL; + } + + /* prepare the response */ + + switch (r->in.level) { + case 1: + info1 = TALLOC_ZERO_P(p->mem_ctx, struct netr_NETLOGON_INFO_1); + W_ERROR_HAVE_NO_MEMORY(info1); + + init_netlogon_info1(info1, + flags, + pdc_connection_status); + r->out.query->info1 = info1; + break; + case 2: + info2 = TALLOC_ZERO_P(p->mem_ctx, struct netr_NETLOGON_INFO_2); + W_ERROR_HAVE_NO_MEMORY(info2); + + init_netlogon_info2(info2, + flags, + pdc_connection_status, + dc_name, + tc_status); + r->out.query->info2 = info2; + break; + case 3: + info3 = TALLOC_ZERO_P(p->mem_ctx, struct netr_NETLOGON_INFO_3); + W_ERROR_HAVE_NO_MEMORY(info3); + + init_netlogon_info3(info3, + flags, + logon_attempts); + r->out.query->info3 = info3; + break; + default: + return WERR_UNKNOWN_LEVEL; + } + + if (lp_server_role() == ROLE_DOMAIN_BDC) { + send_sync_message(); + } + + return WERR_OK; +} + +/************************************************************************* + _netr_NetrEnumerateTrustedDomains + *************************************************************************/ + +WERROR _netr_NetrEnumerateTrustedDomains(pipes_struct *p, + struct netr_NetrEnumerateTrustedDomains *r) +{ + struct netr_Blob trusted_domains_blob; + DATA_BLOB blob; + + DEBUG(6,("_netr_NetrEnumerateTrustedDomains: %d\n", __LINE__)); + + /* set up the Trusted Domain List response */ + + blob = data_blob_talloc_zero(p->mem_ctx, 2); + trusted_domains_blob.data = blob.data; + trusted_domains_blob.length = blob.length; + + DEBUG(6,("_netr_NetrEnumerateTrustedDomains: %d\n", __LINE__)); + + *r->out.trusted_domains_blob = trusted_domains_blob; + + return WERR_OK; +} + +/****************************************************************** + gets a machine password entry. checks access rights of the host. + ******************************************************************/ + +static NTSTATUS get_md4pw(char *md4pw, const char *mach_acct, uint16 sec_chan_type) +{ + struct samu *sampass = NULL; + const uint8 *pass; + bool ret; + uint32 acct_ctrl; + +#if 0 + char addr[INET6_ADDRSTRLEN]; + + /* + * Currently this code is redundent as we already have a filter + * by hostname list. What this code really needs to do is to + * get a hosts allowed/hosts denied list from the SAM database + * on a per user basis, and make the access decision there. + * I will leave this code here for now as a reminder to implement + * this at a later date. JRA. + */ + + if (!allow_access(lp_domain_hostsdeny(), lp_domain_hostsallow(), + client_name(get_client_fd()), + client_addr(get_client_fd(),addr,sizeof(addr)))) { + DEBUG(0,("get_md4pw: Workstation %s denied access to domain\n", mach_acct)); + return False; + } +#endif /* 0 */ + + if ( !(sampass = samu_new( NULL )) ) { + return NT_STATUS_NO_MEMORY; + } + + /* JRA. This is ok as it is only used for generating the challenge. */ + become_root(); + ret = pdb_getsampwnam(sampass, mach_acct); + unbecome_root(); + + if (!ret) { + DEBUG(0,("get_md4pw: Workstation %s: no account in domain\n", mach_acct)); + TALLOC_FREE(sampass); + return NT_STATUS_ACCESS_DENIED; + } + + acct_ctrl = pdb_get_acct_ctrl(sampass); + if (acct_ctrl & ACB_DISABLED) { + DEBUG(0,("get_md4pw: Workstation %s: account is disabled\n", mach_acct)); + TALLOC_FREE(sampass); + return NT_STATUS_ACCOUNT_DISABLED; + } + + if (!(acct_ctrl & ACB_SVRTRUST) && + !(acct_ctrl & ACB_WSTRUST) && + !(acct_ctrl & ACB_DOMTRUST)) + { + DEBUG(0,("get_md4pw: Workstation %s: account is not a trust account\n", mach_acct)); + TALLOC_FREE(sampass); + return NT_STATUS_NO_TRUST_SAM_ACCOUNT; + } + + switch (sec_chan_type) { + case SEC_CHAN_BDC: + if (!(acct_ctrl & ACB_SVRTRUST)) { + DEBUG(0,("get_md4pw: Workstation %s: BDC secure channel requested " + "but not a server trust account\n", mach_acct)); + TALLOC_FREE(sampass); + return NT_STATUS_NO_TRUST_SAM_ACCOUNT; + } + break; + case SEC_CHAN_WKSTA: + if (!(acct_ctrl & ACB_WSTRUST)) { + DEBUG(0,("get_md4pw: Workstation %s: WORKSTATION secure channel requested " + "but not a workstation trust account\n", mach_acct)); + TALLOC_FREE(sampass); + return NT_STATUS_NO_TRUST_SAM_ACCOUNT; + } + break; + case SEC_CHAN_DOMAIN: + if (!(acct_ctrl & ACB_DOMTRUST)) { + DEBUG(0,("get_md4pw: Workstation %s: DOMAIN secure channel requested " + "but not a interdomain trust account\n", mach_acct)); + TALLOC_FREE(sampass); + return NT_STATUS_NO_TRUST_SAM_ACCOUNT; + } + break; + default: + break; + } + + if ((pass = pdb_get_nt_passwd(sampass)) == NULL) { + DEBUG(0,("get_md4pw: Workstation %s: account does not have a password\n", mach_acct)); + TALLOC_FREE(sampass); + return NT_STATUS_LOGON_FAILURE; + } + + memcpy(md4pw, pass, 16); + dump_data(5, (uint8 *)md4pw, 16); + + TALLOC_FREE(sampass); + + return NT_STATUS_OK; + + +} + +/************************************************************************* + _netr_ServerReqChallenge + *************************************************************************/ + +NTSTATUS _netr_ServerReqChallenge(pipes_struct *p, + struct netr_ServerReqChallenge *r) +{ + if (!p->dc) { + p->dc = TALLOC_ZERO_P(p, struct dcinfo); + if (!p->dc) { + return NT_STATUS_NO_MEMORY; + } + } else { + DEBUG(10,("_netr_ServerReqChallenge: new challenge requested. Clearing old state.\n")); + ZERO_STRUCTP(p->dc); + } + + fstrcpy(p->dc->remote_machine, r->in.computer_name); + + /* Save the client challenge to the server. */ + memcpy(p->dc->clnt_chal.data, r->in.credentials->data, + sizeof(r->in.credentials->data)); + + /* Create a server challenge for the client */ + /* Set this to a random value. */ + generate_random_buffer(p->dc->srv_chal.data, 8); + + /* set up the LSA REQUEST CHALLENGE response */ + init_net_r_req_chal(r->out.return_credentials, &p->dc->srv_chal); + + p->dc->challenge_sent = True; + + return NT_STATUS_OK; +} + +/************************************************************************* + _netr_ServerAuthenticate + Create the initial credentials. + *************************************************************************/ + +NTSTATUS _netr_ServerAuthenticate(pipes_struct *p, + struct netr_ServerAuthenticate *r) +{ + NTSTATUS status; + struct netr_Credential srv_chal_out; + + if (!p->dc || !p->dc->challenge_sent) { + return NT_STATUS_ACCESS_DENIED; + } + + status = get_md4pw((char *)p->dc->mach_pw, + r->in.account_name, + r->in.secure_channel_type); + if (!NT_STATUS_IS_OK(status)) { + DEBUG(0,("_netr_ServerAuthenticate: get_md4pw failed. Failed to " + "get password for machine account %s " + "from client %s: %s\n", + r->in.account_name, + r->in.computer_name, + nt_errstr(status) )); + /* always return NT_STATUS_ACCESS_DENIED */ + return NT_STATUS_ACCESS_DENIED; + } + + /* From the client / server challenges and md4 password, generate sess key */ + creds_server_init(0, /* No neg flags. */ + p->dc, + &p->dc->clnt_chal, /* Stored client chal. */ + &p->dc->srv_chal, /* Stored server chal. */ + p->dc->mach_pw, + &srv_chal_out); + + /* Check client credentials are valid. */ + if (!netlogon_creds_server_check(p->dc, r->in.credentials)) { + DEBUG(0,("_netr_ServerAuthenticate: netlogon_creds_server_check failed. Rejecting auth " + "request from client %s machine account %s\n", + r->in.computer_name, + r->in.account_name)); + return NT_STATUS_ACCESS_DENIED; + } + + fstrcpy(p->dc->mach_acct, r->in.account_name); + fstrcpy(p->dc->remote_machine, r->in.computer_name); + p->dc->authenticated = True; + + /* set up the LSA AUTH response */ + /* Return the server credentials. */ + + memcpy(r->out.return_credentials->data, &srv_chal_out.data, + sizeof(r->out.return_credentials->data)); + + return NT_STATUS_OK; +} + +/************************************************************************* + _netr_ServerAuthenticate2 + *************************************************************************/ + +NTSTATUS _netr_ServerAuthenticate2(pipes_struct *p, + struct netr_ServerAuthenticate2 *r) +{ + NTSTATUS status; + uint32_t srv_flgs; + struct netr_Credential srv_chal_out; + + /* We use this as the key to store the creds: */ + /* r->in.computer_name */ + + if (!p->dc || !p->dc->challenge_sent) { + DEBUG(0,("_netr_ServerAuthenticate2: no challenge sent to client %s\n", + r->in.computer_name)); + return NT_STATUS_ACCESS_DENIED; + } + + if ( (lp_server_schannel() == true) && + ((*r->in.negotiate_flags & NETLOGON_NEG_SCHANNEL) == 0) ) { + + /* schannel must be used, but client did not offer it. */ + DEBUG(0,("_netr_ServerAuthenticate2: schannel required but client failed " + "to offer it. Client was %s\n", + r->in.account_name)); + return NT_STATUS_ACCESS_DENIED; + } + + status = get_md4pw((char *)p->dc->mach_pw, + r->in.account_name, + r->in.secure_channel_type); + if (!NT_STATUS_IS_OK(status)) { + DEBUG(0,("_netr_ServerAuthenticate2: failed to get machine password for " + "account %s: %s\n", + r->in.account_name, nt_errstr(status) )); + /* always return NT_STATUS_ACCESS_DENIED */ + return NT_STATUS_ACCESS_DENIED; + } + + /* From the client / server challenges and md4 password, generate sess key */ + creds_server_init(*r->in.negotiate_flags, + p->dc, + &p->dc->clnt_chal, /* Stored client chal. */ + &p->dc->srv_chal, /* Stored server chal. */ + p->dc->mach_pw, + &srv_chal_out); + + /* Check client credentials are valid. */ + if (!netlogon_creds_server_check(p->dc, r->in.credentials)) { + DEBUG(0,("_netr_ServerAuthenticate2: netlogon_creds_server_check failed. Rejecting auth " + "request from client %s machine account %s\n", + r->in.computer_name, + r->in.account_name)); + return NT_STATUS_ACCESS_DENIED; + } + + /* 0x000001ff */ + srv_flgs = NETLOGON_NEG_ACCOUNT_LOCKOUT | + NETLOGON_NEG_PERSISTENT_SAMREPL | + NETLOGON_NEG_ARCFOUR | + NETLOGON_NEG_PROMOTION_COUNT | + NETLOGON_NEG_CHANGELOG_BDC | + NETLOGON_NEG_FULL_SYNC_REPL | + NETLOGON_NEG_MULTIPLE_SIDS | + NETLOGON_NEG_REDO | + NETLOGON_NEG_PASSWORD_CHANGE_REFUSAL; + + if (lp_server_schannel() != false) { + srv_flgs |= NETLOGON_NEG_SCHANNEL; + } + + /* set up the LSA AUTH 2 response */ + memcpy(r->out.return_credentials->data, &srv_chal_out.data, + sizeof(r->out.return_credentials->data)); + *r->out.negotiate_flags = srv_flgs; + + fstrcpy(p->dc->mach_acct, r->in.account_name); + fstrcpy(p->dc->remote_machine, r->in.computer_name); + fstrcpy(p->dc->domain, lp_workgroup() ); + + p->dc->authenticated = True; + + /* Store off the state so we can continue after client disconnect. */ + become_root(); + secrets_store_schannel_session_info(p->mem_ctx, + r->in.computer_name, + p->dc); + unbecome_root(); + + return NT_STATUS_OK; +} + +/************************************************************************* + _netr_ServerPasswordSet + *************************************************************************/ + +NTSTATUS _netr_ServerPasswordSet(pipes_struct *p, + struct netr_ServerPasswordSet *r) +{ + NTSTATUS status = NT_STATUS_OK; + fstring remote_machine; + struct samu *sampass=NULL; + bool ret = False; + unsigned char pwd[16]; + int i; + uint32 acct_ctrl; + struct netr_Authenticator cred_out; + const uchar *old_pw; + + DEBUG(5,("_netr_ServerPasswordSet: %d\n", __LINE__)); + + /* We need the remote machine name for the creds lookup. */ + fstrcpy(remote_machine, r->in.computer_name); + + if ( (lp_server_schannel() == True) && (p->auth.auth_type != PIPE_AUTH_TYPE_SCHANNEL) ) { + /* 'server schannel = yes' should enforce use of + schannel, the client did offer it in auth2, but + obviously did not use it. */ + DEBUG(0,("_netr_ServerPasswordSet: client %s not using schannel for netlogon\n", + remote_machine )); + return NT_STATUS_ACCESS_DENIED; + } + + if (!p->dc) { + /* Restore the saved state of the netlogon creds. */ + become_root(); + ret = secrets_restore_schannel_session_info(p, remote_machine, + &p->dc); + unbecome_root(); + if (!ret) { + return NT_STATUS_INVALID_HANDLE; + } + } + + if (!p->dc || !p->dc->authenticated) { + return NT_STATUS_INVALID_HANDLE; + } + + DEBUG(3,("_netr_ServerPasswordSet: Server Password Set by remote machine:[%s] on account [%s]\n", + remote_machine, p->dc->mach_acct)); + + /* Step the creds chain forward. */ + if (!netlogon_creds_server_step(p->dc, r->in.credential, &cred_out)) { + DEBUG(2,("_netr_ServerPasswordSet: netlogon_creds_server_step failed. Rejecting auth " + "request from client %s machine account %s\n", + remote_machine, p->dc->mach_acct )); + return NT_STATUS_INVALID_PARAMETER; + } + + /* We must store the creds state after an update. */ + sampass = samu_new( NULL ); + if (!sampass) { + return NT_STATUS_NO_MEMORY; + } + + become_root(); + secrets_store_schannel_session_info(p, remote_machine, p->dc); + ret = pdb_getsampwnam(sampass, p->dc->mach_acct); + unbecome_root(); + + if (!ret) { + TALLOC_FREE(sampass); + return NT_STATUS_ACCESS_DENIED; + } + + /* Ensure the account exists and is a machine account. */ + + acct_ctrl = pdb_get_acct_ctrl(sampass); + + if (!(acct_ctrl & ACB_WSTRUST || + acct_ctrl & ACB_SVRTRUST || + acct_ctrl & ACB_DOMTRUST)) { + TALLOC_FREE(sampass); + return NT_STATUS_NO_SUCH_USER; + } + + if (pdb_get_acct_ctrl(sampass) & ACB_DISABLED) { + TALLOC_FREE(sampass); + return NT_STATUS_ACCOUNT_DISABLED; + } + + /* Woah - what does this to to the credential chain ? JRA */ + cred_hash3(pwd, r->in.new_password->hash, p->dc->sess_key, 0); + + DEBUG(100,("_netr_ServerPasswordSet: new given value was :\n")); + for(i = 0; i < sizeof(pwd); i++) + DEBUG(100,("%02X ", pwd[i])); + DEBUG(100,("\n")); + + old_pw = pdb_get_nt_passwd(sampass); + + if (old_pw && memcmp(pwd, old_pw, 16) == 0) { + /* Avoid backend modificiations and other fun if the + client changed the password to the *same thing* */ + + ret = True; + } else { + + /* LM password should be NULL for machines */ + if (!pdb_set_lanman_passwd(sampass, NULL, PDB_CHANGED)) { + TALLOC_FREE(sampass); + return NT_STATUS_NO_MEMORY; + } + + if (!pdb_set_nt_passwd(sampass, pwd, PDB_CHANGED)) { + TALLOC_FREE(sampass); + return NT_STATUS_NO_MEMORY; + } + + if (!pdb_set_pass_last_set_time(sampass, time(NULL), PDB_CHANGED)) { + TALLOC_FREE(sampass); + /* Not quite sure what this one qualifies as, but this will do */ + return NT_STATUS_UNSUCCESSFUL; + } + + become_root(); + status = pdb_update_sam_account(sampass); + unbecome_root(); + } + + /* set up the LSA Server Password Set response */ + + memcpy(r->out.return_authenticator, &cred_out, + sizeof(r->out.return_authenticator)); + + TALLOC_FREE(sampass); + return status; +} + +/************************************************************************* + _netr_LogonSamLogoff + *************************************************************************/ + +NTSTATUS _netr_LogonSamLogoff(pipes_struct *p, + struct netr_LogonSamLogoff *r) +{ + if ( (lp_server_schannel() == True) && (p->auth.auth_type != PIPE_AUTH_TYPE_SCHANNEL) ) { + /* 'server schannel = yes' should enforce use of + schannel, the client did offer it in auth2, but + obviously did not use it. */ + DEBUG(0,("_netr_LogonSamLogoff: client %s not using schannel for netlogon\n", + get_remote_machine_name() )); + return NT_STATUS_ACCESS_DENIED; + } + + + /* Using the remote machine name for the creds store: */ + /* r->in.computer_name */ + + if (!p->dc) { + /* Restore the saved state of the netlogon creds. */ + bool ret; + + become_root(); + ret = secrets_restore_schannel_session_info( + p, r->in.computer_name, &p->dc); + unbecome_root(); + if (!ret) { + return NT_STATUS_INVALID_HANDLE; + } + } + + if (!p->dc || !p->dc->authenticated) { + return NT_STATUS_INVALID_HANDLE; + } + + /* checks and updates credentials. creates reply credentials */ + if (!netlogon_creds_server_step(p->dc, r->in.credential, r->out.return_authenticator)) { + DEBUG(2,("_netr_LogonSamLogoff: netlogon_creds_server_step failed. Rejecting auth " + "request from client %s machine account %s\n", + r->in.computer_name, p->dc->mach_acct )); + return NT_STATUS_INVALID_PARAMETER; + } + + /* We must store the creds state after an update. */ + become_root(); + secrets_store_schannel_session_info(p, r->in.computer_name, p->dc); + unbecome_root(); + + return NT_STATUS_OK; +} + +/************************************************************************* + _netr_LogonSamLogon + *************************************************************************/ + +NTSTATUS _netr_LogonSamLogon(pipes_struct *p, + struct netr_LogonSamLogon *r) +{ + NTSTATUS status = NT_STATUS_OK; + struct netr_SamInfo3 *sam3 = NULL; + union netr_LogonInfo *logon = r->in.logon; + fstring nt_username, nt_domain, nt_workstation; + auth_usersupplied_info *user_info = NULL; + auth_serversupplied_info *server_info = NULL; + struct auth_context *auth_context = NULL; + uint8_t pipe_session_key[16]; + bool process_creds = true; + + switch (p->hdr_req.opnum) { + case NDR_NETR_LOGONSAMLOGON: + process_creds = true; + break; + case NDR_NETR_LOGONSAMLOGONEX: + default: + process_creds = false; + } + + if ( (lp_server_schannel() == True) && (p->auth.auth_type != PIPE_AUTH_TYPE_SCHANNEL) ) { + /* 'server schannel = yes' should enforce use of + schannel, the client did offer it in auth2, but + obviously did not use it. */ + DEBUG(0,("_netr_LogonSamLogon: client %s not using schannel for netlogon\n", + get_remote_machine_name() )); + return NT_STATUS_ACCESS_DENIED; + } + + sam3 = TALLOC_ZERO_P(p->mem_ctx, struct netr_SamInfo3); + if (!sam3) { + return NT_STATUS_NO_MEMORY; + } + + /* store the user information, if there is any. */ + r->out.validation->sam3 = sam3; + *r->out.authoritative = true; /* authoritative response */ + if (r->in.validation_level != 2 && r->in.validation_level != 3) { + DEBUG(0,("_netr_LogonSamLogon: bad validation_level value %d.\n", + (int)r->in.validation_level)); + return NT_STATUS_ACCESS_DENIED; + } + + if (process_creds) { + fstring remote_machine; + + /* Get the remote machine name for the creds store. */ + /* Note this is the remote machine this request is coming from (member server), + not neccessarily the workstation name the user is logging onto. + */ + + fstrcpy(remote_machine, r->in.computer_name); + + if (!p->dc) { + /* Restore the saved state of the netlogon creds. */ + bool ret; + + become_root(); + ret = secrets_restore_schannel_session_info( + p, remote_machine, &p->dc); + unbecome_root(); + if (!ret) { + return NT_STATUS_INVALID_HANDLE; + } + } + + if (!p->dc || !p->dc->authenticated) { + return NT_STATUS_INVALID_HANDLE; + } + + /* checks and updates credentials. creates reply credentials */ + if (!netlogon_creds_server_step(p->dc, r->in.credential, r->out.return_authenticator)) { + DEBUG(2,("_netr_LogonSamLogon: creds_server_step failed. Rejecting auth " + "request from client %s machine account %s\n", + remote_machine, p->dc->mach_acct )); + return NT_STATUS_INVALID_PARAMETER; + } + + /* We must store the creds state after an update. */ + become_root(); + secrets_store_schannel_session_info(p, remote_machine, p->dc); + unbecome_root(); + } + + switch (r->in.logon_level) { + case INTERACTIVE_LOGON_TYPE: + fstrcpy(nt_username, + logon->password->identity_info.account_name.string); + fstrcpy(nt_domain, + logon->password->identity_info.domain_name.string); + fstrcpy(nt_workstation, + logon->password->identity_info.workstation.string); + + DEBUG(3,("SAM Logon (Interactive). Domain:[%s]. ", lp_workgroup())); + break; + case NET_LOGON_TYPE: + fstrcpy(nt_username, + logon->network->identity_info.account_name.string); + fstrcpy(nt_domain, + logon->network->identity_info.domain_name.string); + fstrcpy(nt_workstation, + logon->network->identity_info.workstation.string); + + DEBUG(3,("SAM Logon (Network). Domain:[%s]. ", lp_workgroup())); + break; + default: + DEBUG(2,("SAM Logon: unsupported switch value\n")); + return NT_STATUS_INVALID_INFO_CLASS; + } /* end switch */ + + DEBUG(3,("User:[%s@%s] Requested Domain:[%s]\n", nt_username, nt_workstation, nt_domain)); + fstrcpy(current_user_info.smb_name, nt_username); + sub_set_smb_name(nt_username); + + DEBUG(5,("Attempting validation level %d for unmapped username %s.\n", + r->in.validation_level, nt_username)); + + status = NT_STATUS_OK; + + switch (r->in.logon_level) { + case NET_LOGON_TYPE: + { + const char *wksname = nt_workstation; + + status = make_auth_context_fixed(&auth_context, + logon->network->challenge); + if (!NT_STATUS_IS_OK(status)) { + return status; + } + + /* For a network logon, the workstation name comes in with two + * backslashes in the front. Strip them if they are there. */ + + if (*wksname == '\\') wksname++; + if (*wksname == '\\') wksname++; + + /* Standard challenge/response authenticaion */ + if (!make_user_info_netlogon_network(&user_info, + nt_username, nt_domain, + wksname, + logon->network->identity_info.parameter_control, + logon->network->lm.data, + logon->network->lm.length, + logon->network->nt.data, + logon->network->nt.length)) { + status = NT_STATUS_NO_MEMORY; + } + break; + } + case INTERACTIVE_LOGON_TYPE: + /* 'Interactive' authentication, supplies the password in its + MD4 form, encrypted with the session key. We will convert + this to challenge/response for the auth subsystem to chew + on */ + { + const uint8 *chal; + + if (!NT_STATUS_IS_OK(status = make_auth_context_subsystem(&auth_context))) { + return status; + } + + chal = auth_context->get_ntlm_challenge(auth_context); + + if (!make_user_info_netlogon_interactive(&user_info, + nt_username, nt_domain, + nt_workstation, + logon->password->identity_info.parameter_control, + chal, + logon->password->lmpassword.hash, + logon->password->ntpassword.hash, + p->dc->sess_key)) { + status = NT_STATUS_NO_MEMORY; + } + break; + } + default: + DEBUG(2,("SAM Logon: unsupported switch value\n")); + return NT_STATUS_INVALID_INFO_CLASS; + } /* end switch */ + + if ( NT_STATUS_IS_OK(status) ) { + status = auth_context->check_ntlm_password(auth_context, + user_info, &server_info); + } + + (auth_context->free)(&auth_context); + free_user_info(&user_info); + + DEBUG(5,("_netr_LogonSamLogon: check_password returned status %s\n", + nt_errstr(status))); + + /* Check account and password */ + + if (!NT_STATUS_IS_OK(status)) { + /* If we don't know what this domain is, we need to + indicate that we are not authoritative. This + allows the client to decide if it needs to try + a local user. Fix by jpjanosi@us.ibm.com, #2976 */ + if ( NT_STATUS_EQUAL(status, NT_STATUS_NO_SUCH_USER) + && !strequal(nt_domain, get_global_sam_name()) + && !is_trusted_domain(nt_domain) ) + *r->out.authoritative = false; /* We are not authoritative */ + + TALLOC_FREE(server_info); + return status; + } + + if (server_info->guest) { + /* We don't like guest domain logons... */ + DEBUG(5,("_netr_LogonSamLogon: Attempted domain logon as GUEST " + "denied.\n")); + TALLOC_FREE(server_info); + return NT_STATUS_LOGON_FAILURE; + } + + /* This is the point at which, if the login was successful, that + the SAM Local Security Authority should record that the user is + logged in to the domain. */ + + if (process_creds) { + /* Get the pipe session key from the creds. */ + memcpy(pipe_session_key, p->dc->sess_key, 16); + } else { + /* Get the pipe session key from the schannel. */ + if ((p->auth.auth_type != PIPE_AUTH_TYPE_SCHANNEL) + || (p->auth.a_u.schannel_auth == NULL)) { + return NT_STATUS_INVALID_HANDLE; + } + memcpy(pipe_session_key, p->auth.a_u.schannel_auth->sess_key, 16); + } + + status = serverinfo_to_SamInfo3(server_info, pipe_session_key, sam3); + TALLOC_FREE(server_info); + return status; +} + +/************************************************************************* + _netr_LogonSamLogonEx + - no credential chaining. Map into net sam logon. + *************************************************************************/ + +NTSTATUS _netr_LogonSamLogonEx(pipes_struct *p, + struct netr_LogonSamLogonEx *r) +{ + struct netr_LogonSamLogon q; + + /* Only allow this if the pipe is protected. */ + if (p->auth.auth_type != PIPE_AUTH_TYPE_SCHANNEL) { + DEBUG(0,("_net_sam_logon_ex: client %s not using schannel for netlogon\n", + get_remote_machine_name() )); + return NT_STATUS_INVALID_PARAMETER; + } + + q.in.server_name = r->in.server_name; + q.in.computer_name = r->in.computer_name; + q.in.logon_level = r->in.logon_level; + q.in.logon = r->in.logon; + q.in.validation_level = r->in.validation_level; + /* we do not handle the flags */ + /* = r->in.flags; */ + + q.out.validation = r->out.validation; + q.out.authoritative = r->out.authoritative; + /* we do not handle the flags */ + /* = r->out.flags; */ + + return _netr_LogonSamLogon(p, &q); +} + +/************************************************************************* + _ds_enum_dom_trusts + *************************************************************************/ +#if 0 /* JERRY -- not correct */ + NTSTATUS _ds_enum_dom_trusts(pipes_struct *p, DS_Q_ENUM_DOM_TRUSTS *q_u, + DS_R_ENUM_DOM_TRUSTS *r_u) +{ + NTSTATUS status = NT_STATUS_OK; + + /* TODO: According to MSDN, the can only be executed against a + DC or domain member running Windows 2000 or later. Need + to test against a standalone 2k server and see what it + does. A windows 2000 DC includes its own domain in the + list. --jerry */ + + return status; +} +#endif /* JERRY */ + + +/**************************************************************** +****************************************************************/ + +WERROR _netr_LogonUasLogon(pipes_struct *p, + struct netr_LogonUasLogon *r) +{ + p->rng_fault_state = true; + return WERR_NOT_SUPPORTED; +} + +/**************************************************************** +****************************************************************/ + +WERROR _netr_LogonUasLogoff(pipes_struct *p, + struct netr_LogonUasLogoff *r) +{ + p->rng_fault_state = true; + return WERR_NOT_SUPPORTED; +} + +/**************************************************************** +****************************************************************/ + +NTSTATUS _netr_DatabaseDeltas(pipes_struct *p, + struct netr_DatabaseDeltas *r) +{ + p->rng_fault_state = true; + return NT_STATUS_NOT_IMPLEMENTED; +} + +/**************************************************************** +****************************************************************/ + +NTSTATUS _netr_DatabaseSync(pipes_struct *p, + struct netr_DatabaseSync *r) +{ + p->rng_fault_state = true; + return NT_STATUS_NOT_IMPLEMENTED; +} + +/**************************************************************** +****************************************************************/ + +NTSTATUS _netr_AccountDeltas(pipes_struct *p, + struct netr_AccountDeltas *r) +{ + p->rng_fault_state = true; + return NT_STATUS_NOT_IMPLEMENTED; +} + +/**************************************************************** +****************************************************************/ + +NTSTATUS _netr_AccountSync(pipes_struct *p, + struct netr_AccountSync *r) +{ + p->rng_fault_state = true; + return NT_STATUS_NOT_IMPLEMENTED; +} + +/**************************************************************** +****************************************************************/ + +WERROR _netr_GetDcName(pipes_struct *p, + struct netr_GetDcName *r) +{ + p->rng_fault_state = true; + return WERR_NOT_SUPPORTED; +} + +/**************************************************************** +****************************************************************/ + +WERROR _netr_GetAnyDCName(pipes_struct *p, + struct netr_GetAnyDCName *r) +{ + p->rng_fault_state = true; + return WERR_NOT_SUPPORTED; +} + +/**************************************************************** +****************************************************************/ + +NTSTATUS _netr_DatabaseSync2(pipes_struct *p, + struct netr_DatabaseSync2 *r) +{ + p->rng_fault_state = true; + return NT_STATUS_NOT_IMPLEMENTED; +} + +/**************************************************************** +****************************************************************/ + +NTSTATUS _netr_DatabaseRedo(pipes_struct *p, + struct netr_DatabaseRedo *r) +{ + p->rng_fault_state = true; + return NT_STATUS_NOT_IMPLEMENTED; +} + +/**************************************************************** +****************************************************************/ + +WERROR _netr_LogonControl2Ex(pipes_struct *p, + struct netr_LogonControl2Ex *r) +{ + p->rng_fault_state = true; + return WERR_NOT_SUPPORTED; +} + +/**************************************************************** +****************************************************************/ + +WERROR _netr_DsRGetDCName(pipes_struct *p, + struct netr_DsRGetDCName *r) +{ + p->rng_fault_state = true; + return WERR_NOT_SUPPORTED; +} + +/**************************************************************** +****************************************************************/ + +WERROR _netr_NETRLOGONDUMMYROUTINE1(pipes_struct *p, + struct netr_NETRLOGONDUMMYROUTINE1 *r) +{ + p->rng_fault_state = true; + return WERR_NOT_SUPPORTED; +} + +/**************************************************************** +****************************************************************/ + +WERROR _netr_NETRLOGONSETSERVICEBITS(pipes_struct *p, + struct netr_NETRLOGONSETSERVICEBITS *r) +{ + p->rng_fault_state = true; + return WERR_NOT_SUPPORTED; +} + +/**************************************************************** +****************************************************************/ + +WERROR _netr_LogonGetTrustRid(pipes_struct *p, + struct netr_LogonGetTrustRid *r) +{ + p->rng_fault_state = true; + return WERR_NOT_SUPPORTED; +} + +/**************************************************************** +****************************************************************/ + +WERROR _netr_NETRLOGONCOMPUTESERVERDIGEST(pipes_struct *p, + struct netr_NETRLOGONCOMPUTESERVERDIGEST *r) +{ + p->rng_fault_state = true; + return WERR_NOT_SUPPORTED; +} + +/**************************************************************** +****************************************************************/ + +WERROR _netr_NETRLOGONCOMPUTECLIENTDIGEST(pipes_struct *p, + struct netr_NETRLOGONCOMPUTECLIENTDIGEST *r) +{ + p->rng_fault_state = true; + return WERR_NOT_SUPPORTED; +} + +/**************************************************************** +****************************************************************/ + +NTSTATUS _netr_ServerAuthenticate3(pipes_struct *p, + struct netr_ServerAuthenticate3 *r) +{ + p->rng_fault_state = true; + return NT_STATUS_NOT_IMPLEMENTED; +} + +/**************************************************************** +****************************************************************/ + +WERROR _netr_DsRGetDCNameEx(pipes_struct *p, + struct netr_DsRGetDCNameEx *r) +{ + p->rng_fault_state = true; + return WERR_NOT_SUPPORTED; +} + +/**************************************************************** +****************************************************************/ + +WERROR _netr_DsRGetSiteName(pipes_struct *p, + struct netr_DsRGetSiteName *r) +{ + p->rng_fault_state = true; + return WERR_NOT_SUPPORTED; +} + +/**************************************************************** +****************************************************************/ + +NTSTATUS _netr_LogonGetDomainInfo(pipes_struct *p, + struct netr_LogonGetDomainInfo *r) +{ + p->rng_fault_state = true; + return NT_STATUS_NOT_IMPLEMENTED; +} + +/**************************************************************** +****************************************************************/ + +NTSTATUS _netr_ServerPasswordSet2(pipes_struct *p, + struct netr_ServerPasswordSet2 *r) +{ + p->rng_fault_state = true; + return NT_STATUS_NOT_IMPLEMENTED; +} + +/**************************************************************** +****************************************************************/ + +WERROR _netr_ServerPasswordGet(pipes_struct *p, + struct netr_ServerPasswordGet *r) +{ + p->rng_fault_state = true; + return WERR_NOT_SUPPORTED; +} + +/**************************************************************** +****************************************************************/ + +WERROR _netr_NETRLOGONSENDTOSAM(pipes_struct *p, + struct netr_NETRLOGONSENDTOSAM *r) +{ + p->rng_fault_state = true; + return WERR_NOT_SUPPORTED; +} + +/**************************************************************** +****************************************************************/ + +WERROR _netr_DsRAddressToSitenamesW(pipes_struct *p, + struct netr_DsRAddressToSitenamesW *r) +{ + p->rng_fault_state = true; + return WERR_NOT_SUPPORTED; +} + +/**************************************************************** +****************************************************************/ + +WERROR _netr_DsRGetDCNameEx2(pipes_struct *p, + struct netr_DsRGetDCNameEx2 *r) +{ + p->rng_fault_state = true; + return WERR_NOT_SUPPORTED; +} + +/**************************************************************** +****************************************************************/ + +WERROR _netr_NETRLOGONGETTIMESERVICEPARENTDOMAIN(pipes_struct *p, + struct netr_NETRLOGONGETTIMESERVICEPARENTDOMAIN *r) +{ + p->rng_fault_state = true; + return WERR_NOT_SUPPORTED; +} + +/**************************************************************** +****************************************************************/ + +WERROR _netr_NetrEnumerateTrustedDomainsEx(pipes_struct *p, + struct netr_NetrEnumerateTrustedDomainsEx *r) +{ + p->rng_fault_state = true; + return WERR_NOT_SUPPORTED; +} + +/**************************************************************** +****************************************************************/ + +WERROR _netr_DsRAddressToSitenamesExW(pipes_struct *p, + struct netr_DsRAddressToSitenamesExW *r) +{ + p->rng_fault_state = true; + return WERR_NOT_SUPPORTED; +} + +/**************************************************************** +****************************************************************/ + +WERROR _netr_DsrGetDcSiteCoverageW(pipes_struct *p, + struct netr_DsrGetDcSiteCoverageW *r) +{ + p->rng_fault_state = true; + return WERR_NOT_SUPPORTED; +} + +/**************************************************************** +****************************************************************/ + +WERROR _netr_DsrEnumerateDomainTrusts(pipes_struct *p, + struct netr_DsrEnumerateDomainTrusts *r) +{ + p->rng_fault_state = true; + return WERR_NOT_SUPPORTED; +} + +/**************************************************************** +****************************************************************/ + +WERROR _netr_DsrDeregisterDNSHostRecords(pipes_struct *p, + struct netr_DsrDeregisterDNSHostRecords *r) +{ + p->rng_fault_state = true; + return WERR_NOT_SUPPORTED; +} + +/**************************************************************** +****************************************************************/ + +NTSTATUS _netr_ServerTrustPasswordsGet(pipes_struct *p, + struct netr_ServerTrustPasswordsGet *r) +{ + p->rng_fault_state = true; + return NT_STATUS_NOT_IMPLEMENTED; +} + +/**************************************************************** +****************************************************************/ + +WERROR _netr_DsRGetForestTrustInformation(pipes_struct *p, + struct netr_DsRGetForestTrustInformation *r) +{ + p->rng_fault_state = true; + return WERR_NOT_SUPPORTED; +} + +/**************************************************************** +****************************************************************/ + +WERROR _netr_GetForestTrustInformation(pipes_struct *p, + struct netr_GetForestTrustInformation *r) +{ + p->rng_fault_state = true; + return WERR_NOT_SUPPORTED; +} + +/**************************************************************** +****************************************************************/ + +NTSTATUS _netr_LogonSamLogonWithFlags(pipes_struct *p, + struct netr_LogonSamLogonWithFlags *r) +{ + p->rng_fault_state = true; + return NT_STATUS_NOT_IMPLEMENTED; +} + +/**************************************************************** +****************************************************************/ + +WERROR _netr_NETRSERVERGETTRUSTINFO(pipes_struct *p, + struct netr_NETRSERVERGETTRUSTINFO *r) +{ + p->rng_fault_state = true; + return WERR_NOT_SUPPORTED; +} + |