void ssh_log_function(int verbosity, const char *function, const char *buffer) { char date[64] = {0}; int rc; rc = current_timestring(1, date, sizeof(date)); if (rc == 0) { fprintf(stderr, "[%s, %d] %s", date, verbosity, function); } else { fprintf(stderr, "[%d] %s", verbosity, function); } fprintf(stderr, " %s\n", buffer); }
NTSTATUS trust_pw_change_and_store_it(struct rpc_pipe_client *cli, TALLOC_CTX *mem_ctx, const char *domain, unsigned char orig_trust_passwd_hash[16], uint32 sec_channel_type) { unsigned char new_trust_passwd_hash[16]; char *new_trust_passwd; NTSTATUS nt_status; /* Create a random machine account password */ new_trust_passwd = generate_random_str(mem_ctx, DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH); if (new_trust_passwd == NULL) { DEBUG(0, ("talloc_strdup failed\n")); return NT_STATUS_NO_MEMORY; } E_md4hash(new_trust_passwd, new_trust_passwd_hash); nt_status = rpccli_netlogon_set_trust_password(cli, mem_ctx, orig_trust_passwd_hash, new_trust_passwd, new_trust_passwd_hash, sec_channel_type); if (NT_STATUS_IS_OK(nt_status)) { DEBUG(3,("%s : trust_pw_change_and_store_it: Changed password.\n", current_timestring(debug_ctx(), False))); /* * Return the result of trying to write the new password * back into the trust account file. */ if (!secrets_store_machine_password(new_trust_passwd, domain, sec_channel_type)) { nt_status = NT_STATUS_UNSUCCESSFUL; } } return nt_status; }
NTSTATUS change_trust_account_password( const char *domain, const char *remote_machine) { NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL; struct sockaddr_storage pdc_ss; fstring dc_name; struct cli_state *cli = NULL; struct rpc_pipe_client *netlogon_pipe = NULL; DEBUG(5,("change_trust_account_password: Attempting to change trust account password in domain %s....\n", domain)); if (remote_machine == NULL || !strcmp(remote_machine, "*")) { /* Use the PDC *only* for this */ if ( !get_pdc_ip(domain, &pdc_ss) ) { DEBUG(0,("Can't get IP for PDC for domain %s\n", domain)); goto failed; } if ( !name_status_find( domain, 0x1b, 0x20, &pdc_ss, dc_name) ) goto failed; } else { /* supoport old deprecated "smbpasswd -j DOMAIN -r MACHINE" behavior */ fstrcpy( dc_name, remote_machine ); } /* if this next call fails, then give up. We can't do password changes on BDC's --jerry */ if (!NT_STATUS_IS_OK(cli_full_connection(&cli, global_myname(), dc_name, NULL, 0, "IPC$", "IPC", "", "", "", 0, Undefined, NULL))) { DEBUG(0,("modify_trust_password: Connection to %s failed!\n", dc_name)); nt_status = NT_STATUS_UNSUCCESSFUL; goto failed; } /* * Ok - we have an anonymous connection to the IPC$ share. * Now start the NT Domain stuff :-). */ /* Shouldn't we open this with schannel ? JRA. */ nt_status = cli_rpc_pipe_open_noauth( cli, &ndr_table_netlogon.syntax_id, &netlogon_pipe); if (!NT_STATUS_IS_OK(nt_status)) { DEBUG(0,("modify_trust_password: unable to open the domain client session to machine %s. Error was : %s.\n", dc_name, nt_errstr(nt_status))); cli_shutdown(cli); cli = NULL; goto failed; } nt_status = trust_pw_find_change_and_store_it( netlogon_pipe, netlogon_pipe, domain); cli_shutdown(cli); cli = NULL; failed: if (!NT_STATUS_IS_OK(nt_status)) { DEBUG(0,("%s : change_trust_account_password: Failed to change password for domain %s.\n", current_timestring(talloc_tos(), False), domain)); } else DEBUG(5,("change_trust_account_password: sucess!\n")); return nt_status; }
NTSTATUS trust_pw_change(struct netlogon_creds_cli_context *context, struct messaging_context *msg_ctx, struct dcerpc_binding_handle *b, const char *domain, bool force) { TALLOC_CTX *frame = talloc_stackframe(); struct trust_pw_change_state *state; struct cli_credentials *creds = NULL; const struct samr_Password *current_nt_hash = NULL; const struct samr_Password *previous_nt_hash = NULL; enum netr_SchannelType sec_channel_type = SEC_CHAN_NULL; time_t pass_last_set_time; uint32_t old_version = 0; struct pdb_trusted_domain *td = NULL; struct timeval g_timeout = { 0, }; int timeout = 0; struct timeval tv = { 0, }; size_t new_len = DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH; uint8_t new_password_buffer[256 * 2] = { 0, }; char *new_trust_passwd = NULL; size_t len = 0; uint32_t new_version = 0; uint32_t *new_trust_version = NULL; NTSTATUS status; bool ok; state = talloc_zero(frame, struct trust_pw_change_state); if (state == NULL) { TALLOC_FREE(frame); return NT_STATUS_NO_MEMORY; } state->g_ctx = g_lock_ctx_init(state, msg_ctx); if (state->g_ctx == NULL) { TALLOC_FREE(frame); return NT_STATUS_NO_MEMORY; } state->g_lock_key = talloc_asprintf(state, "trust_password_change_%s", domain); if (state->g_lock_key == NULL) { TALLOC_FREE(frame); return NT_STATUS_NO_MEMORY; } g_timeout = timeval_current_ofs(10, 0); status = g_lock_lock(state->g_ctx, state->g_lock_key, G_LOCK_WRITE, g_timeout); if (!NT_STATUS_IS_OK(status)) { DEBUG(1, ("could not get g_lock on [%s]!\n", state->g_lock_key)); TALLOC_FREE(frame); return status; } talloc_set_destructor(state, trust_pw_change_state_destructor); status = pdb_get_trust_credentials(domain, NULL, frame, &creds); if (!NT_STATUS_IS_OK(status)) { DEBUG(0, ("could not fetch domain creds for domain %s - %s!\n", domain, nt_errstr(status))); TALLOC_FREE(frame); return NT_STATUS_TRUSTED_RELATIONSHIP_FAILURE; } current_nt_hash = cli_credentials_get_nt_hash(creds, frame); if (current_nt_hash == NULL) { DEBUG(0, ("cli_credentials_get_nt_hash failed for domain %s!\n", domain)); TALLOC_FREE(frame); return NT_STATUS_TRUSTED_RELATIONSHIP_FAILURE; } old_version = cli_credentials_get_kvno(creds); pass_last_set_time = cli_credentials_get_password_last_changed_time(creds); sec_channel_type = cli_credentials_get_secure_channel_type(creds); new_version = old_version + 1; switch (sec_channel_type) { case SEC_CHAN_WKSTA: case SEC_CHAN_BDC: break; case SEC_CHAN_DNS_DOMAIN: /* * new_len * 2 = 498 bytes is the largest possible length * NL_PASSWORD_VERSION consumes the rest of the possible 512 bytes * and a confounder with at least 2 bytes is required. * * Windows uses new_len = 120 => 240 bytes. */ new_len = 120; /* fall through */ case SEC_CHAN_DOMAIN: status = pdb_get_trusted_domain(frame, domain, &td); if (!NT_STATUS_IS_OK(status)) { DEBUG(0, ("pdb_get_trusted_domain() failed for domain %s - %s!\n", domain, nt_errstr(status))); TALLOC_FREE(frame); return status; } new_trust_version = &new_version; break; default: TALLOC_FREE(frame); return NT_STATUS_NOT_SUPPORTED; } timeout = lp_machine_password_timeout(); if (timeout == 0) { if (!force) { DEBUG(10,("machine password never expires\n")); TALLOC_FREE(frame); return NT_STATUS_OK; } } tv.tv_sec = pass_last_set_time; DEBUG(10, ("password last changed %s\n", timeval_string(talloc_tos(), &tv, false))); tv.tv_sec += timeout; DEBUGADD(10, ("password valid until %s\n", timeval_string(talloc_tos(), &tv, false))); if (!force && !timeval_expired(&tv)) { TALLOC_FREE(frame); return NT_STATUS_OK; } /* * Create a random machine account password * We create a random buffer and convert that to utf8. * This is similar to what windows is doing. */ generate_secret_buffer(new_password_buffer, new_len * 2); ok = convert_string_talloc(frame, CH_UTF16MUNGED, CH_UTF8, new_password_buffer, new_len * 2, (void *)&new_trust_passwd, &len); ZERO_STRUCT(new_password_buffer); if (!ok) { DEBUG(0, ("convert_string_talloc failed\n")); TALLOC_FREE(frame); return NT_STATUS_NO_MEMORY; } /* * We could use cli_credentials_get_old_nt_hash(creds, frame) to * set previous_nt_hash. * * But we want to check if the dc has our current password and only do * a change if that's the case. So we keep previous_nt_hash = NULL. * * TODO: * If the previous password is the only password in common with the dc, * we better skip the password change, or use something like * ServerTrustPasswordsGet() or netr_ServerGetTrustInfo() to fix our * local secrets before doing the change. */ status = netlogon_creds_cli_auth(context, b, *current_nt_hash, previous_nt_hash); if (!NT_STATUS_IS_OK(status)) { DEBUG(0, ("netlogon_creds_cli_auth for domain %s - %s!\n", domain, nt_errstr(status))); TALLOC_FREE(frame); return status; } /* * Return the result of trying to write the new password * back into the trust account file. */ switch (sec_channel_type) { case SEC_CHAN_WKSTA: case SEC_CHAN_BDC: ok = secrets_store_machine_password(new_trust_passwd, domain, sec_channel_type); if (!ok) { DEBUG(0, ("secrets_store_machine_password failed for domain %s!\n", domain)); TALLOC_FREE(frame); return NT_STATUS_INTERNAL_DB_CORRUPTION; } break; case SEC_CHAN_DNS_DOMAIN: case SEC_CHAN_DOMAIN: /* * we need to get the sid first for the * pdb_set_trusteddom_pw call */ ok = pdb_set_trusteddom_pw(domain, new_trust_passwd, &td->security_identifier); if (!ok) { DEBUG(0, ("pdb_set_trusteddom_pw() failed for domain %s!\n", domain)); TALLOC_FREE(frame); return NT_STATUS_INTERNAL_DB_CORRUPTION; } break; default: smb_panic("Unsupported secure channel type"); break; } DEBUG(1,("%s : %s(%s): Changed password locally\n", current_timestring(talloc_tos(), false), __func__, domain)); status = netlogon_creds_cli_ServerPasswordSet(context, b, new_trust_passwd, new_trust_version); if (!NT_STATUS_IS_OK(status)) { DEBUG(0,("%s : %s(%s) remote password change set failed - %s\n", current_timestring(talloc_tos(), false), __func__, domain, nt_errstr(status))); TALLOC_FREE(frame); return status; } DEBUG(1,("%s : %s(%s): Changed password remotely.\n", current_timestring(talloc_tos(), false), __func__, domain)); TALLOC_FREE(frame); return NT_STATUS_OK; }