/* * 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" #include "../libcli/auth/libcli_auth.h" #include "../libcli/auth/schannel_state.h" #include "../libcli/auth/schannel.h" extern userdom_struct current_user_info; #undef DBGC_CLASS #define DBGC_CLASS DBGC_RPC_SRV struct netlogon_server_pipe_state { struct netr_Credential client_challenge; struct netr_Credential server_challenge; }; /************************************************************************* _netr_LogonControl *************************************************************************/ WERROR _netr_LogonControl(pipes_struct *p, struct netr_LogonControl *r) { struct netr_LogonControl2Ex l; switch (r->in.level) { case 1: break; case 2: return WERR_NOT_SUPPORTED; default: return WERR_UNKNOWN_LEVEL; } l.in.logon_server = r->in.logon_server; l.in.function_code = r->in.function_code; l.in.level = r->in.level; l.in.data = NULL; l.out.query = r->out.query; return _netr_LogonControl2Ex(p, &l); } /**************************************************************************** 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) { struct netr_LogonControl2Ex l; l.in.logon_server = r->in.logon_server; l.in.function_code = r->in.function_code; l.in.level = r->in.level; l.in.data = r->in.data; l.out.query = r->out.query; return _netr_LogonControl2Ex(p, &l); } /**************************************************************** _netr_LogonControl2Ex ****************************************************************/ WERROR _netr_LogonControl2Ex(pipes_struct *p, struct netr_LogonControl2Ex *r) { uint32_t flags = 0x0; WERROR pdc_connection_status = WERR_OK; uint32_t logon_attempts = 0x0; WERROR 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; const char *fn; switch (p->hdr_req.opnum) { case NDR_NETR_LOGONCONTROL: fn = "_netr_LogonControl"; break; case NDR_NETR_LOGONCONTROL2: fn = "_netr_LogonControl2"; break; case NDR_NETR_LOGONCONTROL2EX: fn = "_netr_LogonControl2Ex"; break; default: return WERR_INVALID_PARAM; } tc_status = 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 = WERR_NO_LOGON_SERVERS; break; } dc_name = talloc_asprintf(p->mem_ctx, "\\\\%s", dc_name2); if (!dc_name) { return WERR_NOMEM; } tc_status = 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 = WERR_NO_LOGON_SERVERS; break; } dc_name = talloc_asprintf(p->mem_ctx, "\\\\%s", dc_name2); if (!dc_name) { return WERR_NOMEM; } tc_status = WERR_OK; break; default: /* no idea what this should be */ DEBUG(0,("%s: unimplemented function level [%d]\n", fn, 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); info1->flags = flags; info1->pdc_connection_status = 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); info2->flags = flags; info2->pdc_connection_status = pdc_connection_status; info2->trusted_dc_name = dc_name; info2->tc_connection_status = 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); info3->flags = flags; info3->logon_attempts = 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) { NTSTATUS status; DATA_BLOB blob; struct trustdom_info **domains; uint32_t num_domains; const char **trusted_domains; int i; DEBUG(6,("_netr_NetrEnumerateTrustedDomains: %d\n", __LINE__)); /* set up the Trusted Domain List response */ become_root(); status = pdb_enum_trusteddoms(p->mem_ctx, &num_domains, &domains); unbecome_root(); if (!NT_STATUS_IS_OK(status)) { return ntstatus_to_werror(status); } trusted_domains = talloc_zero_array(p->mem_ctx, const char *, num_domains + 1); if (!trusted_domains) { return WERR_NOMEM; } for (i = 0; i < num_domains; i++) { trusted_domains[i] = talloc_strdup(trusted_domains, domains[i]->name); if (!trusted_domains[i]) { TALLOC_FREE(trusted_domains); return WERR_NOMEM; } } if (!push_reg_multi_sz(trusted_domains, &blob, trusted_domains)) { TALLOC_FREE(trusted_domains); return WERR_NOMEM; } r->out.trusted_domains_blob->data = blob.data; r->out.trusted_domains_blob->length = blob.length; DEBUG(6,("_netr_NetrEnumerateTrustedDomains: %d\n", __LINE__)); return WERR_OK; } /****************************************************************** gets a machine password entry. checks access rights of the host. ******************************************************************/ static NTSTATUS get_md4pw(struct samr_Password *md4pw, const char *mach_acct, enum netr_SchannelType sec_chan_type, struct dom_sid *sid) { 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->hash, pass, 16); dump_data(5, md4pw->hash, 16); sid_copy(sid, pdb_get_user_sid(sampass)); TALLOC_FREE(sampass); return NT_STATUS_OK; } /************************************************************************* _netr_ServerReqChallenge *************************************************************************/ NTSTATUS _netr_ServerReqChallenge(pipes_struct *p, struct netr_ServerReqChallenge *r) { struct netlogon_server_pipe_state *pipe_state = talloc_get_type(p->private_data, struct netlogon_server_pipe_state); if (pipe_state) { DEBUG(10,("_netr_ServerReqChallenge: new challenge requested. Clearing old state.\n")); talloc_free(pipe_state); p->private_data = NULL; } pipe_state = talloc(p, struct netlogon_server_pipe_state); NT_STATUS_HAVE_NO_MEMORY(pipe_state); pipe_state->client_challenge = *r->in.credentials; generate_random_buffer(pipe_state->server_challenge.data, sizeof(pipe_state->server_challenge.data)); *r->out.return_credentials = pipe_state->server_challenge; p->private_data = pipe_state; return NT_STATUS_OK; } /************************************************************************* _netr_ServerAuthenticate Create the initial credentials. *************************************************************************/ NTSTATUS _netr_ServerAuthenticate(pipes_struct *p, struct netr_ServerAuthenticate *r) { struct netr_ServerAuthenticate3 a; uint32_t negotiate_flags = 0; uint32_t rid; a.in.server_name = r->in.server_name; a.in.account_name = r->in.account_name; a.in.secure_channel_type = r->in.secure_channel_type; a.in.computer_name = r->in.computer_name; a.in.credentials = r->in.credentials; a.in.negotiate_flags = &negotiate_flags; a.out.return_credentials = r->out.return_credentials; a.out.rid = &rid; a.out.negotiate_flags = &negotiate_flags; return _netr_ServerAuthenticate3(p, &a); } /************************************************************************* _netr_ServerAuthenticate3 *************************************************************************/ NTSTATUS _netr_ServerAuthenticate3(pipes_struct *p, struct netr_ServerAuthenticate3 *r) { NTSTATUS status; uint32_t srv_flgs; /* r->in.negotiate_flags is an aliased pointer to r->out.negotiate_flags, * so use a copy to avoid destroying the client values. */ uint32_t in_neg_flags = *r->in.negotiate_flags; const char *fn; struct dom_sid sid; struct samr_Password mach_pwd; struct netlogon_creds_CredentialState *creds; struct netlogon_server_pipe_state *pipe_state = talloc_get_type(p->private_data, struct netlogon_server_pipe_state); /* According to Microsoft (see bugid #6099) * Windows 7 looks at the negotiate_flags * returned in this structure *even if the * call fails with access denied* ! So in order * to allow Win7 to connect to a Samba NT style * PDC we set the flags before we know if it's * an error or not. */ /* 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 | NETLOGON_NEG_PASSWORD_SET2; /* Ensure we support strong (128-bit) keys. */ if (in_neg_flags & NETLOGON_NEG_STRONG_KEYS) { srv_flgs |= NETLOGON_NEG_STRONG_KEYS; } if (lp_server_schannel() != false) { srv_flgs |= NETLOGON_NEG_SCHANNEL; } switch (p->hdr_req.opnum) { case NDR_NETR_SERVERAUTHENTICATE: fn = "_netr_ServerAuthenticate"; break; case NDR_NETR_SERVERAUTHENTICATE2: fn = "_netr_ServerAuthenticate2"; break; case NDR_NETR_SERVERAUTHENTICATE3: fn = "_netr_ServerAuthenticate3"; break; default: return NT_STATUS_INTERNAL_ERROR; } /* We use this as the key to store the creds: */ /* r->in.computer_name */ if (!pipe_state) { DEBUG(0,("%s: no challenge sent to client %s\n", fn, r->in.computer_name)); status = NT_STATUS_ACCESS_DENIED; goto out; } if ( (lp_server_schannel() == true) && ((in_neg_flags & NETLOGON_NEG_SCHANNEL) == 0) ) { /* schannel must be used, but client did not offer it. */ DEBUG(0,("%s: schannel required but client failed " "to offer it. Client was %s\n", fn, r->in.account_name)); status = NT_STATUS_ACCESS_DENIED; goto out; } status = get_md4pw(&mach_pwd, r->in.account_name, r->in.secure_channel_type, &sid); if (!NT_STATUS_IS_OK(status)) { DEBUG(0,("%s: failed to get machine password for " "account %s: %s\n", fn, r->in.account_name, nt_errstr(status) )); /* always return NT_STATUS_ACCESS_DENIED */ status = NT_STATUS_ACCESS_DENIED; goto out; } /* From the client / server challenges and md4 password, generate sess key */ /* Check client credentials are valid. */ creds = netlogon_creds_server_init(p->mem_ctx, r->in.account_name, r->in.computer_name, r->in.secure_channel_type, &pipe_state->client_challenge, &pipe_state->server_challenge, &mach_pwd, r->in.credentials, r->out.return_credentials, *r->in.negotiate_flags); if (!creds) { DEBUG(0,("%s: netlogon_creds_server_check failed. Rejecting auth " "request from client %s machine account %s\n", fn, r->in.computer_name, r->in.account_name)); status = NT_STATUS_ACCESS_DENIED; goto out; } creds->sid = sid_dup_talloc(creds, &sid); if (!creds->sid) { status = NT_STATUS_NO_MEMORY; goto out; } /* Store off the state so we can continue after client disconnect. */ become_root(); status = schannel_store_session_key(p->mem_ctx, creds); unbecome_root(); if (!NT_STATUS_IS_OK(status)) { goto out; } sid_peek_rid(&sid, r->out.rid); status = NT_STATUS_OK; out: *r->out.negotiate_flags = srv_flgs; return status; } /************************************************************************* _netr_ServerAuthenticate2 *************************************************************************/ NTSTATUS _netr_ServerAuthenticate2(pipes_struct *p, struct netr_ServerAuthenticate2 *r) { struct netr_ServerAuthenticate3 a; uint32_t rid; a.in.server_name = r->in.server_name; a.in.account_name = r->in.account_name; a.in.secure_channel_type = r->in.secure_channel_type; a.in.computer_name = r->in.computer_name; a.in.credentials = r->in.credentials; a.in.negotiate_flags = r->in.negotiate_flags; a.out.return_credentials = r->out.return_credentials; a.out.rid = &rid; a.out.negotiate_flags = r->out.negotiate_flags; return _netr_ServerAuthenticate3(p, &a); } /************************************************************************* *************************************************************************/ static NTSTATUS netr_creds_server_step_check(pipes_struct *p, TALLOC_CTX *mem_ctx, const char *computer_name, struct netr_Authenticator *received_authenticator, struct netr_Authenticator *return_authenticator, struct netlogon_creds_CredentialState **creds_out) { NTSTATUS status; struct tdb_context *tdb; bool schannel_global_required = (lp_server_schannel() == true) ? true:false; bool schannel_in_use = (p->auth.auth_type == PIPE_AUTH_TYPE_SCHANNEL) ? true:false; /* && (p->auth.auth_level == DCERPC_AUTH_LEVEL_INTEGRITY || p->auth.auth_level == DCERPC_AUTH_LEVEL_PRIVACY); */ tdb = open_schannel_session_store(mem_ctx); if (!tdb) { return NT_STATUS_ACCESS_DENIED; } status = schannel_creds_server_step_check_tdb(tdb, mem_ctx, computer_name, schannel_global_required, schannel_in_use, received_authenticator, return_authenticator, creds_out); tdb_close(tdb); return status; } /************************************************************************* *************************************************************************/ static NTSTATUS netr_find_machine_account(TALLOC_CTX *mem_ctx, const char *account_name, struct samu **sampassp) { struct samu *sampass; bool ret = false; uint32_t acct_ctrl; sampass = samu_new(mem_ctx); if (!sampass) { return NT_STATUS_NO_MEMORY; } become_root(); ret = pdb_getsampwnam(sampass, account_name); 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 (acct_ctrl & ACB_DISABLED) { TALLOC_FREE(sampass); return NT_STATUS_ACCOUNT_DISABLED; } *sampassp = sampass; return NT_STATUS_OK; } /************************************************************************* *************************************************************************/ static NTSTATUS netr_set_machine_account_password(TALLOC_CTX *mem_ctx, struct samu *sampass, DATA_BLOB *plaintext_blob, struct samr_Password *nt_hash, struct samr_Password *lm_hash) { NTSTATUS status; const uchar *old_pw; const char *plaintext = NULL; size_t plaintext_len; struct samr_Password nt_hash_local; if (!sampass) { return NT_STATUS_INVALID_PARAMETER; } if (plaintext_blob) { if (!convert_string_talloc(mem_ctx, CH_UTF16, CH_UNIX, plaintext_blob->data, plaintext_blob->length, &plaintext, &plaintext_len, false)) { plaintext = NULL; mdfour(nt_hash_local.hash, plaintext_blob->data, plaintext_blob->length); nt_hash = &nt_hash_local; } } if (plaintext) { if (!pdb_set_plaintext_passwd(sampass, plaintext)) { return NT_STATUS_ACCESS_DENIED; } goto done; } if (nt_hash) { old_pw = pdb_get_nt_passwd(sampass); if (old_pw && memcmp(nt_hash->hash, old_pw, 16) == 0) { /* Avoid backend modificiations and other fun if the client changed the password to the *same thing* */ } else { /* LM password should be NULL for machines */ if (!pdb_set_lanman_passwd(sampass, NULL, PDB_CHANGED)) { return NT_STATUS_NO_MEMORY; } if (!pdb_set_nt_passwd(sampass, nt_hash->hash, PDB_CHANGED)) { return NT_STATUS_NO_MEMORY; } if (!pdb_set_pass_last_set_time(sampass, time(NULL), PDB_CHANGED)) { /* Not quite sure what this one qualifies as, but this will do */ return NT_STATUS_UNSUCCESSFUL; } } } done: become_root(); status = pdb_update_sam_account(sampass); unbecome_root(); return status; } /************************************************************************* _netr_ServerPasswordSet *************************************************************************/ NTSTATUS _netr_ServerPasswordSet(pipes_struct *p, struct netr_ServerPasswordSet *r) { NTSTATUS status = NT_STATUS_OK; struct samu *sampass=NULL; int i; struct netlogon_creds_CredentialState *creds; DEBUG(5,("_netr_ServerPasswordSet: %d\n", __LINE__)); become_root(); status = netr_creds_server_step_check(p, p->mem_ctx, r->in.computer_name, r->in.credential, r->out.return_authenticator, &creds); unbecome_root(); if (!NT_STATUS_IS_OK(status)) { DEBUG(2,("_netr_ServerPasswordSet: netlogon_creds_server_step failed. Rejecting auth " "request from client %s machine account %s\n", r->in.computer_name, creds->computer_name)); TALLOC_FREE(creds); return status; } DEBUG(3,("_netr_ServerPasswordSet: Server Password Set by remote machine:[%s] on account [%s]\n", r->in.computer_name, creds->computer_name)); netlogon_creds_des_decrypt(creds, r->in.new_password); DEBUG(100,("_netr_ServerPasswordSet: new given value was :\n")); for(i = 0; i < sizeof(r->in.new_password->hash); i++) DEBUG(100,("%02X ", r->in.new_password->hash[i])); DEBUG(100,("\n")); status = netr_find_machine_account(p->mem_ctx, creds->account_name, &sampass); if (!NT_STATUS_IS_OK(status)) { return status; } status = netr_set_machine_account_password(sampass, sampass, NULL, r->in.new_password, NULL); TALLOC_FREE(sampass); return status; } /**************************************************************** _netr_ServerPasswordSet2 ****************************************************************/ NTSTATUS _netr_ServerPasswordSet2(pipes_struct *p, struct netr_ServerPasswordSet2 *r) { NTSTATUS status; struct netlogon_creds_CredentialState *creds; struct samu *sampass; DATA_BLOB plaintext; struct samr_CryptPassword password_buf; struct samr_Password nt_hash; become_root(); status = netr_creds_server_step_check(p, p->mem_ctx, r->in.computer_name, r->in.credential, r->out.return_authenticator, &creds); unbecome_root(); if (!NT_STATUS_IS_OK(status)) { DEBUG(2,("_netr_ServerPasswordSet2: netlogon_creds_server_step " "failed. Rejecting auth request from client %s machine account %s\n", r->in.computer_name, creds->computer_name)); TALLOC_FREE(creds); return status; } memcpy(password_buf.data, r->in.new_password->data, 512); SIVAL(password_buf.data, 512, r->in.new_password->length); netlogon_creds_arcfour_crypt(creds, password_buf.data, 516); if (!extract_pw_from_buffer(p->mem_ctx, password_buf.data, &plaintext)) { return NT_STATUS_WRONG_PASSWORD; } mdfour(nt_hash.hash, plaintext.data, plaintext.length); status = netr_find_machine_account(p->mem_ctx, creds->account_name, &sampass); if (!NT_STATUS_IS_OK(status)) { return status; } status = netr_set_machine_account_password(sampass, sampass, NULL, &nt_hash, NULL); TALLOC_FREE(sampass); return status; } /************************************************************************* _netr_LogonSamLogoff *************************************************************************/ NTSTATUS _netr_LogonSamLogoff(pipes_struct *p, struct netr_LogonSamLogoff *r) { NTSTATUS status; struct netlogon_creds_CredentialState *creds; become_root(); status = netr_creds_server_step_check(p, p->mem_ctx, r->in.computer_name, r->in.credential, r->out.return_authenticator, &creds); unbecome_root(); return status; } /************************************************************************* _netr_LogonSamLogon_base *************************************************************************/ static NTSTATUS _netr_LogonSamLogon_base(pipes_struct *p, struct netr_LogonSamLogonEx *r, struct netlogon_creds_CredentialState *creds) { NTSTATUS status = NT_STATUS_OK; union netr_LogonLevel *logon = r->in.logon; const char *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; const char *fn; switch (p->hdr_req.opnum) { case NDR_NETR_LOGONSAMLOGON: process_creds = true; fn = "_netr_LogonSamLogon"; break; case NDR_NETR_LOGONSAMLOGONWITHFLAGS: process_creds = true; fn = "_netr_LogonSamLogonWithFlags"; break; case NDR_NETR_LOGONSAMLOGONEX: process_creds = false; fn = "_netr_LogonSamLogonEx"; break; default: return NT_STATUS_INTERNAL_ERROR; } *r->out.authoritative = true; /* authoritative response */ switch (r->in.validation_level) { case 2: r->out.validation->sam2 = TALLOC_ZERO_P(p->mem_ctx, struct netr_SamInfo2); if (!r->out.validation->sam2) { return NT_STATUS_NO_MEMORY; } break; case 3: r->out.validation->sam3 = TALLOC_ZERO_P(p->mem_ctx, struct netr_SamInfo3); if (!r->out.validation->sam3) { return NT_STATUS_NO_MEMORY; } break; case 6: r->out.validation->sam6 = TALLOC_ZERO_P(p->mem_ctx, struct netr_SamInfo6); if (!r->out.validation->sam6) { return NT_STATUS_NO_MEMORY; } break; default: DEBUG(0,("%s: bad validation_level value %d.\n", fn, (int)r->in.validation_level)); return NT_STATUS_INVALID_INFO_CLASS; } switch (r->in.logon_level) { case NetlogonInteractiveInformation: case NetlogonServiceInformation: case NetlogonInteractiveTransitiveInformation: case NetlogonServiceTransitiveInformation: nt_username = logon->password->identity_info.account_name.string; nt_domain = logon->password->identity_info.domain_name.string; nt_workstation = logon->password->identity_info.workstation.string; DEBUG(3,("SAM Logon (Interactive). Domain:[%s]. ", lp_workgroup())); break; case NetlogonNetworkInformation: case NetlogonNetworkTransitiveInformation: nt_username = logon->network->identity_info.account_name.string; nt_domain = logon->network->identity_info.domain_name.string; 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 NetlogonNetworkInformation: case NetlogonNetworkTransitiveInformation: { 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 NetlogonInteractiveInformation: case NetlogonServiceInformation: case NetlogonInteractiveTransitiveInformation: case NetlogonServiceTransitiveInformation: /* '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 */ { uint8_t chal[8]; if (!NT_STATUS_IS_OK(status = make_auth_context_subsystem(&auth_context))) { return status; } auth_context->get_ntlm_challenge(auth_context, chal); 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, creds->session_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,("%s: check_password returned status %s\n", fn, 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,("%s: Attempted domain logon as GUEST " "denied.\n", fn)); 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, creds->session_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->creds->session_key, 16); } switch (r->in.validation_level) { case 2: status = serverinfo_to_SamInfo2(server_info, pipe_session_key, 16, r->out.validation->sam2); break; case 3: status = serverinfo_to_SamInfo3(server_info, pipe_session_key, 16, r->out.validation->sam3); break; case 6: status = serverinfo_to_SamInfo6(server_info, pipe_session_key, 16, r->out.validation->sam6); break; } TALLOC_FREE(server_info); return status; } /**************************************************************** _netr_LogonSamLogonWithFlags ****************************************************************/ NTSTATUS _netr_LogonSamLogonWithFlags(pipes_struct *p, struct netr_LogonSamLogonWithFlags *r) { NTSTATUS status; struct netlogon_creds_CredentialState *creds; struct netr_LogonSamLogonEx r2; struct netr_Authenticator return_authenticator; become_root(); status = netr_creds_server_step_check(p, p->mem_ctx, r->in.computer_name, r->in.credential, &return_authenticator, &creds); unbecome_root(); if (!NT_STATUS_IS_OK(status)) { return status; } r2.in.server_name = r->in.server_name; r2.in.computer_name = r->in.computer_name; r2.in.logon_level = r->in.logon_level; r2.in.logon = r->in.logon; r2.in.validation_level = r->in.validation_level; r2.in.flags = r->in.flags; r2.out.validation = r->out.validation; r2.out.authoritative = r->out.authoritative; r2.out.flags = r->out.flags; status = _netr_LogonSamLogon_base(p, &r2, creds); *r->out.return_authenticator = return_authenticator; return status; } /************************************************************************* _netr_LogonSamLogon *************************************************************************/ NTSTATUS _netr_LogonSamLogon(pipes_struct *p, struct netr_LogonSamLogon *r) { NTSTATUS status; struct netr_LogonSamLogonWithFlags r2; uint32_t flags = 0; r2.in.server_name = r->in.server_name; r2.in.computer_name = r->in.computer_name; r2.in.credential = r->in.credential; r2.in.logon_level = r->in.logon_level; r2.in.logon = r->in.logon; r2.in.validation_level = r->in.validation_level; r2.in.return_authenticator = r->in.return_authenticator; r2.in.flags = &flags; r2.out.validation = r->out.validation; r2.out.authoritative = r->out.authoritative; r2.out.flags = &flags; r2.out.return_authenticator = r->out.return_authenticator; status = _netr_LogonSamLogonWithFlags(p, &r2); return status; } /************************************************************************* _netr_LogonSamLogonEx - no credential chaining. Map into net sam logon. *************************************************************************/ NTSTATUS _netr_LogonSamLogonEx(pipes_struct *p, struct netr_LogonSamLogonEx *r) { NTSTATUS status; struct netlogon_creds_CredentialState *creds = NULL; become_root(); status = schannel_fetch_session_key(p->mem_ctx, r->in.computer_name, &creds); unbecome_root(); if (!NT_STATUS_IS_OK(status)) { return status; } /* Only allow this if the pipe is protected. */ if (p->auth.auth_type != PIPE_AUTH_TYPE_SCHANNEL) { DEBUG(0,("_netr_LogonSamLogonEx: client %s not using schannel for netlogon\n", get_remote_machine_name() )); return NT_STATUS_INVALID_PARAMETER; } status = _netr_LogonSamLogon_base(p, r, creds); TALLOC_FREE(creds); return status; } /************************************************************************* _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_DsRGetDCName(pipes_struct *p, struct netr_DsRGetDCName *r) { p->rng_fault_state = true; return WERR_NOT_SUPPORTED; } /**************************************************************** ****************************************************************/ NTSTATUS _netr_LogonGetCapabilities(pipes_struct *p, struct netr_LogonGetCapabilities *r) { return NT_STATUS_NOT_IMPLEMENTED; } /**************************************************************** ****************************************************************/ 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; } /**************************************************************** ****************************************************************/ 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; } /**************************************************************** ****************************************************************/ 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_ServerGetTrustInfo(pipes_struct *p, struct netr_ServerGetTrustInfo *r) { p->rng_fault_state = true; return NT_STATUS_NOT_IMPLEMENTED; }