_PUBLIC_ bool cli_credentials_is_anonymous(struct cli_credentials *cred) { const char *username; /* if bind dn is set it's not anonymous */ if (cred->bind_dn) { return false; } if (cred->machine_account_pending) { cli_credentials_set_machine_account(cred, cred->machine_account_pending_lp_ctx); } /* if principal is set, it's not anonymous */ if ((cred->principal != NULL) && cred->principal_obtained >= cred->username_obtained) { return false; } username = cli_credentials_get_username(cred); /* Yes, it is deliberate that we die if we have a NULL pointer * here - anonymous is "", not NULL, which is 'never specified, * never guessed', ie programmer bug */ if (!username[0]) { return true; } return false; }
static PyObject *py_creds_set_machine_account(PyObject *self, PyObject *args) { PyObject *py_lp_ctx = Py_None; struct loadparm_context *lp_ctx; NTSTATUS status; struct cli_credentials *creds; TALLOC_CTX *mem_ctx; creds = PyCredentials_AsCliCredentials(self); if (!PyArg_ParseTuple(args, "|O", &py_lp_ctx)) return NULL; mem_ctx = talloc_new(NULL); if (mem_ctx == NULL) { PyErr_NoMemory(); return NULL; } lp_ctx = lpcfg_from_py_object(mem_ctx, py_lp_ctx); if (lp_ctx == NULL) { talloc_free(mem_ctx); return NULL; } status = cli_credentials_set_machine_account(creds, lp_ctx); talloc_free(mem_ctx); PyErr_NTSTATUS_IS_ERR_RAISE(status); Py_RETURN_NONE; }
NTSTATUS wbsrv_samba3_check_machacc(struct wbsrv_samba3_call *s3call) { NTSTATUS status; struct cli_credentials *creds; struct composite_context *ctx; struct wbsrv_service *service = s3call->wbconn->listen_socket->service; /* Create a credentials structure */ creds = cli_credentials_init(s3call); if (creds == NULL) { return NT_STATUS_NO_MEMORY; } cli_credentials_set_conf(creds, service->task->lp_ctx); /* Connect the machine account to the credentials */ status = cli_credentials_set_machine_account(creds, service->task->lp_ctx); if (!NT_STATUS_IS_OK(status)) { talloc_free(creds); return status; } ctx = wb_cmd_pam_auth_send(s3call, service, creds); if (!ctx) { talloc_free(creds); return NT_STATUS_NO_MEMORY; } ctx->async.fn = check_machacc_recv; ctx->async.private_data = s3call; s3call->flags |= WBSRV_CALL_FLAGS_REPLY_ASYNC; return NT_STATUS_OK; }
static NTSTATUS smb2srv_negprot_secblob(struct smb2srv_request *req, DATA_BLOB *_blob) { struct gensec_security *gensec_security; DATA_BLOB null_data_blob = data_blob(NULL, 0); DATA_BLOB blob; NTSTATUS nt_status; struct cli_credentials *server_credentials; server_credentials = cli_credentials_init(req); if (!server_credentials) { smbsrv_terminate_connection(req->smb_conn, "Failed to init server credentials\n"); return NT_STATUS_NO_MEMORY; } cli_credentials_set_conf(server_credentials, req->smb_conn->lp_ctx); nt_status = cli_credentials_set_machine_account(server_credentials, req->smb_conn->lp_ctx); if (!NT_STATUS_IS_OK(nt_status)) { DEBUG(10, ("Failed to obtain server credentials, perhaps a standalone server?: %s\n", nt_errstr(nt_status))); /* * We keep the server_credentials as anonymous * this is required for the spoolss.notify test */ } req->smb_conn->negotiate.server_credentials = talloc_steal(req->smb_conn, server_credentials); nt_status = samba_server_gensec_start(req, req->smb_conn->connection->event.ctx, req->smb_conn->connection->msg_ctx, req->smb_conn->lp_ctx, server_credentials, "cifs", &gensec_security); if (!NT_STATUS_IS_OK(nt_status)) { DEBUG(0, ("Failed to start GENSEC: %s\n", nt_errstr(nt_status))); smbsrv_terminate_connection(req->smb_conn, "Failed to start GENSEC\n"); return nt_status; } gensec_set_target_service(gensec_security, "cifs"); gensec_set_credentials(gensec_security, server_credentials); nt_status = gensec_start_mech_by_oid(gensec_security, GENSEC_OID_SPNEGO); if (!NT_STATUS_IS_OK(nt_status)) { DEBUG(0, ("Failed to start SPNEGO: %s\n", nt_errstr(nt_status))); smbsrv_terminate_connection(req->smb_conn, "Failed to start SPNEGO\n"); return nt_status; } nt_status = gensec_update_ev(gensec_security, req, req->smb_conn->connection->event.ctx, null_data_blob, &blob); if (!NT_STATUS_IS_OK(nt_status) && !NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) { DEBUG(0, ("Failed to get SPNEGO to give us the first token: %s\n", nt_errstr(nt_status))); smbsrv_terminate_connection(req->smb_conn, "Failed to start SPNEGO - no first token\n"); return nt_status; } *_blob = blob; return NT_STATUS_OK; }
/** * Obtain the client principal for this credentials context. * @param cred credentials context * @retval The username set on this context. * @note Return value will never be NULL except by programmer error. */ _PUBLIC_ const char *cli_credentials_get_principal_and_obtained(struct cli_credentials *cred, TALLOC_CTX *mem_ctx, enum credentials_obtained *obtained) { if (cred->machine_account_pending) { cli_credentials_set_machine_account(cred, cred->machine_account_pending_lp_ctx); } if (cred->principal_obtained == CRED_CALLBACK && !cred->callback_running) { cred->callback_running = true; cred->principal = cred->principal_cb(cred); cred->callback_running = false; if (cred->principal_obtained == CRED_CALLBACK) { cred->principal_obtained = CRED_CALLBACK_RESULT; cli_credentials_invalidate_ccache(cred, cred->principal_obtained); } } if (cred->principal_obtained < cred->username_obtained || cred->principal_obtained < MAX(cred->domain_obtained, cred->realm_obtained)) { if (cred->domain_obtained > cred->realm_obtained) { *obtained = MIN(cred->domain_obtained, cred->username_obtained); return talloc_asprintf(mem_ctx, "%s@%s", cli_credentials_get_username(cred), cli_credentials_get_domain(cred)); } else { *obtained = MIN(cred->domain_obtained, cred->username_obtained); return talloc_asprintf(mem_ctx, "%s@%s", cli_credentials_get_username(cred), cli_credentials_get_realm(cred)); } } *obtained = cred->principal_obtained; return talloc_strdup(mem_ctx, cred->principal); }
/** * Obtain the client principal for this credentials context. * @param cred credentials context * @retval The username set on this context. * @note Return value will never be NULL except by programmer error. */ const char *cli_credentials_get_principal(struct cli_credentials *cred, TALLOC_CTX *mem_ctx) { if (cred->machine_account_pending) { cli_credentials_set_machine_account(cred); } if (cred->principal_obtained == CRED_CALLBACK && !cred->callback_running) { cred->callback_running = True; cred->principal = cred->principal_cb(cred); cred->callback_running = False; cred->principal_obtained = CRED_SPECIFIED; } if (cred->principal_obtained < cred->username_obtained) { if (cred->domain_obtained > cred->realm_obtained) { return talloc_asprintf(mem_ctx, "%s@%s", cli_credentials_get_username(cred), cli_credentials_get_domain(cred)); } else { return talloc_asprintf(mem_ctx, "%s@%s", cli_credentials_get_username(cred), cli_credentials_get_realm(cred)); } } return talloc_reference(mem_ctx, cred->principal); }
/** * Obtain the 'old' password for this credentials context (used for join accounts). * @param cred credentials context * @retval If set, the cleartext password, otherwise NULL */ const char *cli_credentials_get_old_password(struct cli_credentials *cred) { if (cred->machine_account_pending) { cli_credentials_set_machine_account(cred); } return cred->old_password; }
/* parse any auth information from a dcerpc bind request return false if we can't handle the auth request for some reason (in which case we send a bind_nak) */ bool dcesrv_auth_bind(struct dcesrv_call_state *call) { struct cli_credentials *server_credentials; struct ncacn_packet *pkt = &call->pkt; struct dcesrv_connection *dce_conn = call->conn; struct dcesrv_auth *auth = &dce_conn->auth_state; NTSTATUS status; uint32_t auth_length; if (pkt->u.bind.auth_info.length == 0) { dce_conn->auth_state.auth_info = NULL; return true; } dce_conn->auth_state.auth_info = talloc(dce_conn, struct dcerpc_auth); if (!dce_conn->auth_state.auth_info) { return false; } status = dcerpc_pull_auth_trailer(pkt, call, &pkt->u.bind.auth_info, dce_conn->auth_state.auth_info, &auth_length, false); server_credentials = cli_credentials_init(call); if (!server_credentials) { DEBUG(1, ("Failed to init server credentials\n")); return false; } cli_credentials_set_conf(server_credentials, call->conn->dce_ctx->lp_ctx); status = cli_credentials_set_machine_account(server_credentials, call->conn->dce_ctx->lp_ctx); if (!NT_STATUS_IS_OK(status)) { DEBUG(10, ("Failed to obtain server credentials, perhaps a standalone server?: %s\n", nt_errstr(status))); talloc_free(server_credentials); server_credentials = NULL; } status = samba_server_gensec_start(dce_conn, call->event_ctx, call->msg_ctx, call->conn->dce_ctx->lp_ctx, server_credentials, NULL, &auth->gensec_security); status = gensec_start_mech_by_authtype(auth->gensec_security, auth->auth_info->auth_type, auth->auth_info->auth_level); if (!NT_STATUS_IS_OK(status)) { DEBUG(3, ("Failed to start GENSEC mechanism for DCERPC server: auth_type=%d, auth_level=%d: %s\n", (int)auth->auth_info->auth_type, (int)auth->auth_info->auth_level, nt_errstr(status))); return false; } return true; }
/** * Obtain the username for this credentials context. * @param cred credentials context * @retval The username set on this context. * @note Return value will never be NULL except by programmer error. */ const char *cli_credentials_get_username(struct cli_credentials *cred) { if (cred->machine_account_pending) { cli_credentials_set_machine_account(cred); } if (cred->username_obtained == CRED_CALLBACK && !cred->callback_running) { cred->callback_running = True; cred->username = cred->username_cb(cred); cred->callback_running = False; cred->username_obtained = CRED_SPECIFIED; } return cred->username; }
/** * Obtain the password for this credentials context. * @param cred credentials context * @retval If set, the cleartext password, otherwise NULL */ const char *cli_credentials_get_password(struct cli_credentials *cred) { if (cred->machine_account_pending) { cli_credentials_set_machine_account(cred); } if (cred->password_obtained == CRED_CALLBACK && !cred->callback_running) { cred->callback_running = True; cred->password = cred->password_cb(cred); cred->callback_running = False; cred->password_obtained = CRED_CALLBACK_RESULT; } return cred->password; }
/** * Obtain the Kerberos realm for this credentials context. * @param cred credentials context * @retval The realm set on this context. * @note Return value will never be NULL except by programmer error. */ _PUBLIC_ const char *cli_credentials_get_realm(struct cli_credentials *cred) { if (cred->machine_account_pending) { cli_credentials_set_machine_account(cred, cred->machine_account_pending_lp_ctx); } if (cred->realm_obtained == CRED_CALLBACK && !cred->callback_running) { cred->callback_running = true; cred->realm = cred->realm_cb(cred); cred->callback_running = false; if (cred->realm_obtained == CRED_CALLBACK) { cred->realm_obtained = CRED_CALLBACK_RESULT; cli_credentials_invalidate_ccache(cred, cred->realm_obtained); } } return cred->realm; }
static void manage_gensec_request(enum stdio_helper_mode stdio_helper_mode, struct loadparm_context *lp_ctx, char *buf, int length, void **private1, unsigned int mux_id, void **private2) { DATA_BLOB in; DATA_BLOB out = data_blob(NULL, 0); char *out_base64 = NULL; const char *reply_arg = NULL; struct gensec_ntlm_state { struct gensec_security *gensec_state; const char *set_password; }; struct gensec_ntlm_state *state; struct tevent_context *ev; struct imessaging_context *msg; NTSTATUS nt_status; bool first = false; const char *reply_code; struct cli_credentials *creds; static char *want_feature_list = NULL; static DATA_BLOB session_key; TALLOC_CTX *mem_ctx; if (*private1) { state = (struct gensec_ntlm_state *)*private1; } else { state = talloc_zero(NULL, struct gensec_ntlm_state); if (!state) { mux_printf(mux_id, "BH No Memory\n"); exit(1); } *private1 = state; if (opt_password) { state->set_password = opt_password; } } if (strlen(buf) < 2) { DEBUG(1, ("query [%s] invalid", buf)); mux_printf(mux_id, "BH Query invalid\n"); return; } if (strlen(buf) > 3) { if(strncmp(buf, "SF ", 3) == 0) { DEBUG(10, ("Setting flags to negotiate\n")); talloc_free(want_feature_list); want_feature_list = talloc_strndup(state, buf+3, strlen(buf)-3); mux_printf(mux_id, "OK\n"); return; } in = base64_decode_data_blob(buf + 3); } else { in = data_blob(NULL, 0); } if (strncmp(buf, "YR", 2) == 0) { if (state->gensec_state) { talloc_free(state->gensec_state); state->gensec_state = NULL; } } else if ( (strncmp(buf, "OK", 2) == 0)) { /* Just return BH, like ntlm_auth from Samba 3 does. */ mux_printf(mux_id, "BH Command expected\n"); data_blob_free(&in); return; } else if ( (strncmp(buf, "TT ", 3) != 0) && (strncmp(buf, "KK ", 3) != 0) && (strncmp(buf, "AF ", 3) != 0) && (strncmp(buf, "NA ", 3) != 0) && (strncmp(buf, "UG", 2) != 0) && (strncmp(buf, "PW ", 3) != 0) && (strncmp(buf, "GK", 2) != 0) && (strncmp(buf, "GF", 2) != 0)) { DEBUG(1, ("SPNEGO request [%s] invalid\n", buf)); mux_printf(mux_id, "BH SPNEGO request invalid\n"); data_blob_free(&in); return; } ev = s4_event_context_init(state); if (!ev) { exit(1); } mem_ctx = talloc_named(NULL, 0, "manage_gensec_request internal mem_ctx"); /* setup gensec */ if (!(state->gensec_state)) { switch (stdio_helper_mode) { case GSS_SPNEGO_CLIENT: case NTLMSSP_CLIENT_1: /* setup the client side */ nt_status = gensec_client_start(NULL, &state->gensec_state, ev, lpcfg_gensec_settings(NULL, lp_ctx)); if (!NT_STATUS_IS_OK(nt_status)) { talloc_free(mem_ctx); exit(1); } break; case GSS_SPNEGO_SERVER: case SQUID_2_5_NTLMSSP: { const char *winbind_method[] = { "winbind", NULL }; struct auth4_context *auth_context; msg = imessaging_client_init(state, lpcfg_imessaging_path(state, lp_ctx), ev); if (!msg) { talloc_free(mem_ctx); exit(1); } nt_status = auth_context_create_methods(mem_ctx, winbind_method, ev, msg, lp_ctx, NULL, &auth_context); if (!NT_STATUS_IS_OK(nt_status)) { talloc_free(mem_ctx); exit(1); } if (!NT_STATUS_IS_OK(gensec_server_start(state, ev, lpcfg_gensec_settings(state, lp_ctx), auth_context, &state->gensec_state))) { talloc_free(mem_ctx); exit(1); } break; } default: talloc_free(mem_ctx); abort(); } creds = cli_credentials_init(state->gensec_state); cli_credentials_set_conf(creds, lp_ctx); if (opt_username) { cli_credentials_set_username(creds, opt_username, CRED_SPECIFIED); } if (opt_domain) { cli_credentials_set_domain(creds, opt_domain, CRED_SPECIFIED); } if (state->set_password) { cli_credentials_set_password(creds, state->set_password, CRED_SPECIFIED); } else { cli_credentials_set_password_callback(creds, get_password); creds->priv_data = (void*)(uintptr_t)mux_id; } if (opt_workstation) { cli_credentials_set_workstation(creds, opt_workstation, CRED_SPECIFIED); } switch (stdio_helper_mode) { case GSS_SPNEGO_SERVER: case SQUID_2_5_NTLMSSP: cli_credentials_set_machine_account(creds, lp_ctx); break; default: break; } gensec_set_credentials(state->gensec_state, creds); gensec_want_feature_list(state->gensec_state, want_feature_list); switch (stdio_helper_mode) { case GSS_SPNEGO_CLIENT: case GSS_SPNEGO_SERVER: nt_status = gensec_start_mech_by_oid(state->gensec_state, GENSEC_OID_SPNEGO); if (!in.length) { first = true; } break; case NTLMSSP_CLIENT_1: if (!in.length) { first = true; } /* fall through */ case SQUID_2_5_NTLMSSP: nt_status = gensec_start_mech_by_oid(state->gensec_state, GENSEC_OID_NTLMSSP); break; default: talloc_free(mem_ctx); abort(); } if (!NT_STATUS_IS_OK(nt_status)) { DEBUG(1, ("GENSEC mech failed to start: %s\n", nt_errstr(nt_status))); mux_printf(mux_id, "BH GENSEC mech failed to start\n"); talloc_free(mem_ctx); return; } } /* update */ if (strncmp(buf, "PW ", 3) == 0) { state->set_password = talloc_strndup(state, (const char *)in.data, in.length); cli_credentials_set_password(gensec_get_credentials(state->gensec_state), state->set_password, CRED_SPECIFIED); mux_printf(mux_id, "OK\n"); data_blob_free(&in); talloc_free(mem_ctx); return; } if (strncmp(buf, "UG", 2) == 0) { int i; char *grouplist = NULL; struct auth_session_info *session_info; nt_status = gensec_session_info(state->gensec_state, mem_ctx, &session_info); if (!NT_STATUS_IS_OK(nt_status)) { DEBUG(1, ("gensec_session_info failed: %s\n", nt_errstr(nt_status))); mux_printf(mux_id, "BH %s\n", nt_errstr(nt_status)); data_blob_free(&in); talloc_free(mem_ctx); return; } /* get the string onto the context */ grouplist = talloc_strdup(mem_ctx, ""); for (i=0; i<session_info->security_token->num_sids; i++) { struct security_token *token = session_info->security_token; const char *sidstr = dom_sid_string(session_info, &token->sids[i]); grouplist = talloc_asprintf_append_buffer(grouplist, "%s,", sidstr); } mux_printf(mux_id, "GL %s\n", grouplist); talloc_free(session_info); data_blob_free(&in); talloc_free(mem_ctx); return; } if (strncmp(buf, "GK", 2) == 0) { char *base64_key; DEBUG(10, ("Requested session key\n")); nt_status = gensec_session_key(state->gensec_state, mem_ctx, &session_key); if(!NT_STATUS_IS_OK(nt_status)) { DEBUG(1, ("gensec_session_key failed: %s\n", nt_errstr(nt_status))); mux_printf(mux_id, "BH No session key\n"); talloc_free(mem_ctx); return; } else { base64_key = base64_encode_data_blob(state, session_key); mux_printf(mux_id, "GK %s\n", base64_key); talloc_free(base64_key); } talloc_free(mem_ctx); return; } if (strncmp(buf, "GF", 2) == 0) { struct ntlmssp_state *ntlmssp_state; uint32_t neg_flags; ntlmssp_state = talloc_get_type(state->gensec_state->private_data, struct ntlmssp_state); neg_flags = ntlmssp_state->neg_flags; DEBUG(10, ("Requested negotiated feature flags\n")); mux_printf(mux_id, "GF 0x%08x\n", neg_flags); return; } nt_status = gensec_update(state->gensec_state, mem_ctx, in, &out); /* don't leak 'bad password'/'no such user' info to the network client */ nt_status = nt_status_squash(nt_status); if (out.length) { out_base64 = base64_encode_data_blob(mem_ctx, out); } else { out_base64 = NULL; } if (NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) { reply_arg = "*"; if (first) { reply_code = "YR"; } else if (state->gensec_state->gensec_role == GENSEC_CLIENT) { reply_code = "KK"; } else if (state->gensec_state->gensec_role == GENSEC_SERVER) { reply_code = "TT"; } else { abort(); } } else if (NT_STATUS_EQUAL(nt_status, NT_STATUS_ACCESS_DENIED)) { reply_code = "BH NT_STATUS_ACCESS_DENIED"; reply_arg = nt_errstr(nt_status); DEBUG(1, ("GENSEC login failed: %s\n", nt_errstr(nt_status))); } else if (NT_STATUS_EQUAL(nt_status, NT_STATUS_UNSUCCESSFUL)) { reply_code = "BH NT_STATUS_UNSUCCESSFUL"; reply_arg = nt_errstr(nt_status); DEBUG(1, ("GENSEC login failed: %s\n", nt_errstr(nt_status))); } else if (!NT_STATUS_IS_OK(nt_status)) { reply_code = "NA"; reply_arg = nt_errstr(nt_status); DEBUG(1, ("GENSEC login failed: %s\n", nt_errstr(nt_status))); } else if /* OK */ (state->gensec_state->gensec_role == GENSEC_SERVER) { struct auth_session_info *session_info; nt_status = gensec_session_info(state->gensec_state, mem_ctx, &session_info); if (!NT_STATUS_IS_OK(nt_status)) { reply_code = "BH Failed to retrive session info"; reply_arg = nt_errstr(nt_status); DEBUG(1, ("GENSEC failed to retrieve the session info: %s\n", nt_errstr(nt_status))); } else { reply_code = "AF"; reply_arg = talloc_asprintf(state->gensec_state, "%s%s%s", session_info->info->domain_name, lpcfg_winbind_separator(lp_ctx), session_info->info->account_name); talloc_free(session_info); } } else if (state->gensec_state->gensec_role == GENSEC_CLIENT) { reply_code = "AF"; reply_arg = out_base64; } else { abort(); } switch (stdio_helper_mode) { case GSS_SPNEGO_SERVER: mux_printf(mux_id, "%s %s %s\n", reply_code, out_base64 ? out_base64 : "*", reply_arg ? reply_arg : "*"); break; default: if (out_base64) { mux_printf(mux_id, "%s %s\n", reply_code, out_base64); } else if (reply_arg) { mux_printf(mux_id, "%s %s\n", reply_code, reply_arg); } else { mux_printf(mux_id, "%s\n", reply_code); } } talloc_free(mem_ctx); return; }
_PUBLIC_ int cli_credentials_get_named_ccache(struct cli_credentials *cred, struct tevent_context *event_ctx, struct loadparm_context *lp_ctx, char *ccache_name, struct ccache_container **ccc, const char **error_string) { krb5_error_code ret; enum credentials_obtained obtained; if (cred->machine_account_pending) { cli_credentials_set_machine_account(cred, lp_ctx); } if (cred->ccache_obtained >= cred->ccache_threshold && cred->ccache_obtained > CRED_UNINITIALISED) { time_t lifetime; bool expired = false; ret = smb_krb5_cc_get_lifetime(cred->ccache->smb_krb5_context->krb5_context, cred->ccache->ccache, &lifetime); if (ret == KRB5_CC_END) { /* If we have a particular ccache set, without * an initial ticket, then assume there is a * good reason */ } else if (ret == 0) { if (lifetime == 0) { DEBUG(3, ("Ticket in credentials cache for %s expired, will refresh\n", cli_credentials_get_principal(cred, cred))); expired = true; } else if (lifetime < 300) { DEBUG(3, ("Ticket in credentials cache for %s will shortly expire (%u secs), will refresh\n", cli_credentials_get_principal(cred, cred), (unsigned int)lifetime)); expired = true; } } else { (*error_string) = talloc_asprintf(cred, "failed to get ccache lifetime: %s\n", smb_get_krb5_error_message(cred->ccache->smb_krb5_context->krb5_context, ret, cred)); return ret; } DEBUG(5, ("Ticket in credentials cache for %s will expire in %u secs\n", cli_credentials_get_principal(cred, cred), (unsigned int)lifetime)); if (!expired) { *ccc = cred->ccache; return 0; } } if (cli_credentials_is_anonymous(cred)) { (*error_string) = "Cannot get anonymous kerberos credentials"; return EINVAL; } ret = cli_credentials_new_ccache(cred, lp_ctx, ccache_name, ccc, error_string); if (ret) { return ret; } ret = kinit_to_ccache(cred, cred, (*ccc)->smb_krb5_context, event_ctx, (*ccc)->ccache, &obtained, error_string); if (ret) { return ret; } ret = cli_credentials_set_from_ccache(cred, *ccc, obtained, error_string); cred->ccache = *ccc; cred->ccache_obtained = cred->principal_obtained; if (ret) { return ret; } cli_credentials_invalidate_client_gss_creds(cred, cred->ccache_obtained); return 0; }
struct composite_context *wb_init_domain_send(TALLOC_CTX *mem_ctx, struct wbsrv_service *service, struct wb_dom_info *dom_info) { struct composite_context *result, *ctx; struct init_domain_state *state; result = composite_create(mem_ctx, service->task->event_ctx); if (result == NULL) goto failed; state = talloc_zero(result, struct init_domain_state); if (state == NULL) goto failed; state->ctx = result; result->private_data = state; state->service = service; state->domain = talloc(state, struct wbsrv_domain); if (state->domain == NULL) goto failed; state->domain->service = service; state->domain->info = talloc_reference(state->domain, dom_info); if (state->domain->info == NULL) goto failed; state->domain->dc_name = dom_info->dc->name; state->domain->dc_address = dom_info->dc->address; state->domain->libnet_ctx = libnet_context_init(service->task->event_ctx, service->task->lp_ctx); if (state->domain->libnet_ctx == NULL) goto failed; talloc_steal(state->domain, state->domain->libnet_ctx); /* Create a credentials structure */ state->domain->libnet_ctx->cred = cli_credentials_init(state->domain); if (state->domain->libnet_ctx->cred == NULL) goto failed; cli_credentials_set_conf(state->domain->libnet_ctx->cred, service->task->lp_ctx); /* Connect the machine account to the credentials */ state->ctx->status = cli_credentials_set_machine_account(state->domain->libnet_ctx->cred, state->domain->libnet_ctx->lp_ctx); if (!NT_STATUS_IS_OK(state->ctx->status)) goto failed; state->domain->netlogon_binding = init_domain_binding(state, &ndr_table_netlogon); state->domain->netlogon_pipe = NULL; state->domain->netlogon_queue = tevent_queue_create(state->domain, "netlogon_queue"); if (state->domain->netlogon_queue == NULL) goto failed; /* We start the queue when the connection is usable */ tevent_queue_stop(state->domain->netlogon_queue); if ((!cli_credentials_is_anonymous(state->domain->libnet_ctx->cred)) && ((lpcfg_server_role(service->task->lp_ctx) == ROLE_DOMAIN_MEMBER) || (lpcfg_server_role(service->task->lp_ctx) == ROLE_ACTIVE_DIRECTORY_DC)) && (dom_sid_equal(state->domain->info->sid, state->service->primary_sid))) { uint32_t flags = DCERPC_SCHANNEL | DCERPC_SCHANNEL_AUTO; /* For debugging, it can be a real pain if all the traffic is encrypted */ if (lpcfg_winbind_sealed_pipes(service->task->lp_ctx)) { flags |= DCERPC_SIGN | DCERPC_SEAL; } else { flags |= DCERPC_SIGN; } state->ctx->status = dcerpc_binding_set_flags(state->domain->netlogon_binding, flags, 0); if (!NT_STATUS_IS_OK(state->ctx->status)) goto failed; } /* No encryption on anonymous pipes */ ctx = dcerpc_pipe_connect_b_send(state, state->domain->netlogon_binding, &ndr_table_netlogon, state->domain->libnet_ctx->cred, service->task->event_ctx, service->task->lp_ctx); if (composite_nomem(ctx, state->ctx)) { goto failed; } composite_continue(state->ctx, ctx, init_domain_recv_netlogonpipe, state); return result; failed: talloc_free(result); return NULL; }
/* connect to a share - used when a tree_connect operation comes in. */ static NTSTATUS cvfs_connect(struct ntvfs_module_context *ntvfs, struct ntvfs_request *req, union smb_tcon *tcon) { NTSTATUS status; struct cvfs_private *p; const char *host, *user, *pass, *domain, *remote_share; struct smb_composite_connect io; struct composite_context *creq; struct share_config *scfg = ntvfs->ctx->config; struct cli_credentials *credentials; bool machine_account; bool s4u2proxy; const char* sharename; switch (tcon->generic.level) { case RAW_TCON_TCON: sharename = tcon->tcon.in.service; break; case RAW_TCON_TCONX: sharename = tcon->tconx.in.path; break; case RAW_TCON_SMB2: sharename = tcon->smb2.in.path; break; default: return NT_STATUS_INVALID_LEVEL; } if (strncmp(sharename, "\\\\", 2) == 0) { char *str = strchr(sharename+2, '\\'); if (str) { sharename = str + 1; } } /* Here we need to determine which server to connect to. * For now we use parametric options, type cifs. * Later we will use security=server and auth_server.c. */ host = share_string_option(scfg, CIFS_SERVER, NULL); user = share_string_option(scfg, CIFS_USER, NULL); pass = share_string_option(scfg, CIFS_PASSWORD, NULL); domain = share_string_option(scfg, CIFS_DOMAIN, NULL); remote_share = share_string_option(scfg, CIFS_SHARE, NULL); if (!remote_share) { remote_share = sharename; } machine_account = share_bool_option(scfg, CIFS_USE_MACHINE_ACCT, CIFS_USE_MACHINE_ACCT_DEFAULT); s4u2proxy = share_bool_option(scfg, CIFS_USE_S4U2PROXY, CIFS_USE_S4U2PROXY_DEFAULT); p = talloc_zero(ntvfs, struct cvfs_private); if (!p) { return NT_STATUS_NO_MEMORY; } ntvfs->private_data = p; if (!host) { DEBUG(1,("CIFS backend: You must supply server\n")); return NT_STATUS_INVALID_PARAMETER; } if (user && pass) { DEBUG(5, ("CIFS backend: Using specified password\n")); credentials = cli_credentials_init(p); if (!credentials) { return NT_STATUS_NO_MEMORY; } cli_credentials_set_conf(credentials, ntvfs->ctx->lp_ctx); cli_credentials_set_username(credentials, user, CRED_SPECIFIED); if (domain) { cli_credentials_set_domain(credentials, domain, CRED_SPECIFIED); } cli_credentials_set_password(credentials, pass, CRED_SPECIFIED); } else if (machine_account) { DEBUG(5, ("CIFS backend: Using machine account\n")); credentials = cli_credentials_init(p); cli_credentials_set_conf(credentials, ntvfs->ctx->lp_ctx); if (domain) { cli_credentials_set_domain(credentials, domain, CRED_SPECIFIED); } status = cli_credentials_set_machine_account(credentials, ntvfs->ctx->lp_ctx); if (!NT_STATUS_IS_OK(status)) { return status; } } else if (req->session_info->credentials) { DEBUG(5, ("CIFS backend: Using delegated credentials\n")); credentials = req->session_info->credentials; } else if (s4u2proxy) { struct ccache_container *ccc = NULL; const char *err_str = NULL; int ret; char *impersonate_principal; char *self_service; char *target_service; impersonate_principal = talloc_asprintf(req, "%s@%s", req->session_info->info->account_name, req->session_info->info->domain_name); self_service = talloc_asprintf(req, "cifs/%s", lpcfg_netbios_name(ntvfs->ctx->lp_ctx)); target_service = talloc_asprintf(req, "cifs/%s", host); DEBUG(5, ("CIFS backend: Using S4U2Proxy credentials\n")); credentials = cli_credentials_init(p); cli_credentials_set_conf(credentials, ntvfs->ctx->lp_ctx); if (domain) { cli_credentials_set_domain(credentials, domain, CRED_SPECIFIED); } status = cli_credentials_set_machine_account(credentials, ntvfs->ctx->lp_ctx); if (!NT_STATUS_IS_OK(status)) { return status; } cli_credentials_invalidate_ccache(credentials, CRED_SPECIFIED); cli_credentials_set_impersonate_principal(credentials, impersonate_principal, self_service); cli_credentials_set_target_service(credentials, target_service); ret = cli_credentials_get_ccache(credentials, ntvfs->ctx->event_ctx, ntvfs->ctx->lp_ctx, &ccc, &err_str); if (ret != 0) { status = NT_STATUS_CROSSREALM_DELEGATION_FAILURE; DEBUG(1,("S4U2Proxy: cli_credentials_get_ccache() gave: ret[%d] str[%s] - %s\n", ret, err_str, nt_errstr(status))); return status; } } else { DEBUG(1,("CIFS backend: NO delegated credentials found: You must supply server, user and password or the client must supply delegated credentials\n")); return NT_STATUS_INTERNAL_ERROR; } /* connect to the server, using the smbd event context */ io.in.dest_host = host; io.in.dest_ports = lpcfg_smb_ports(ntvfs->ctx->lp_ctx); io.in.socket_options = lpcfg_socket_options(ntvfs->ctx->lp_ctx); io.in.called_name = host; io.in.credentials = credentials; io.in.fallback_to_anonymous = false; io.in.workgroup = lpcfg_workgroup(ntvfs->ctx->lp_ctx); io.in.service = remote_share; io.in.service_type = "?????"; io.in.gensec_settings = lpcfg_gensec_settings(p, ntvfs->ctx->lp_ctx); lpcfg_smbcli_options(ntvfs->ctx->lp_ctx, &io.in.options); lpcfg_smbcli_session_options(ntvfs->ctx->lp_ctx, &io.in.session_options); if (!(ntvfs->ctx->client_caps & NTVFS_CLIENT_CAP_LEVEL_II_OPLOCKS)) { io.in.options.use_level2_oplocks = false; } creq = smb_composite_connect_send(&io, p, lpcfg_resolve_context(ntvfs->ctx->lp_ctx), ntvfs->ctx->event_ctx); status = smb_composite_connect_recv(creq, p); NT_STATUS_NOT_OK_RETURN(status); p->tree = io.out.tree; p->transport = p->tree->session->transport; SETUP_PID; p->ntvfs = ntvfs; ntvfs->ctx->fs_type = talloc_strdup(ntvfs->ctx, "NTFS"); NT_STATUS_HAVE_NO_MEMORY(ntvfs->ctx->fs_type); ntvfs->ctx->dev_type = talloc_strdup(ntvfs->ctx, "A:"); NT_STATUS_HAVE_NO_MEMORY(ntvfs->ctx->dev_type); if (tcon->generic.level == RAW_TCON_TCONX) { tcon->tconx.out.fs_type = ntvfs->ctx->fs_type; tcon->tconx.out.dev_type = ntvfs->ctx->dev_type; } /* we need to receive oplock break requests from the server */ smbcli_oplock_handler(p->transport, oplock_handler, p); p->map_generic = share_bool_option(scfg, CIFS_MAP_GENERIC, CIFS_MAP_GENERIC_DEFAULT); p->map_trans2 = share_bool_option(scfg, CIFS_MAP_TRANS2, CIFS_MAP_TRANS2_DEFAULT); return NT_STATUS_OK; }
struct composite_context *wb_init_domain_send(TALLOC_CTX *mem_ctx, struct wbsrv_service *service, struct wb_dom_info *dom_info) { struct composite_context *result, *ctx; struct init_domain_state *state; result = composite_create(mem_ctx, service->task->event_ctx); if (result == NULL) goto failed; state = talloc_zero(result, struct init_domain_state); if (state == NULL) goto failed; state->ctx = result; result->private_data = state; state->service = service; state->domain = talloc(state, struct wbsrv_domain); if (state->domain == NULL) goto failed; state->domain->info = talloc_reference(state->domain, dom_info); if (state->domain->info == NULL) goto failed; /* Caller should check, but to be safe: */ if (dom_info->num_dcs < 1) { goto failed; } /* For now, we just pick the first. The next step will be to * walk the entire list. Also need to fix finddcs() to return * the entire list */ state->domain->dc_name = dom_info->dcs[0].name; state->domain->dc_address = dom_info->dcs[0].address; /* Create a credentials structure */ state->domain->schannel_creds = cli_credentials_init(state->domain); if (state->domain->schannel_creds == NULL) goto failed; cli_credentials_set_event_context(state->domain->schannel_creds, service->task->event_ctx); cli_credentials_set_conf(state->domain->schannel_creds); /* Connect the machine account to the credentials */ state->ctx->status = cli_credentials_set_machine_account(state->domain-> schannel_creds); if (!NT_STATUS_IS_OK(state->ctx->status)) goto failed; state->domain->netlogon_binding = init_domain_binding(state, &dcerpc_table_netlogon); state->domain->netlogon_pipe = NULL; if ((!cli_credentials_is_anonymous(state->domain->schannel_creds)) && ((lp_server_role() == ROLE_DOMAIN_MEMBER) && (dom_sid_equal(state->domain->info->sid, state->service->primary_sid)))) { state->domain->netlogon_binding->flags |= DCERPC_SCHANNEL; /* For debugging, it can be a real pain if all the traffic is encrypted */ if (lp_winbind_sealed_pipes()) { state->domain->netlogon_binding->flags |= (DCERPC_SIGN | DCERPC_SEAL ); } else { state->domain->netlogon_binding->flags |= (DCERPC_SIGN); } } /* No encryption on anonymous pipes */ ctx = dcerpc_pipe_connect_b_send(state, state->domain->netlogon_binding, &dcerpc_table_netlogon, state->domain->schannel_creds, service->task->event_ctx); if (composite_nomem(ctx, state->ctx)) { goto failed; } composite_continue(state->ctx, ctx, init_domain_recv_netlogonpipe, state); return result; failed: talloc_free(result); return NULL; }
NTSTATUS libnet_SamSync_netlogon(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, struct libnet_SamSync *r) { NTSTATUS nt_status, dbsync_nt_status; TALLOC_CTX *samsync_ctx, *loop_ctx, *delta_ctx; struct netlogon_creds_CredentialState *creds; struct netr_DatabaseSync dbsync; struct netr_Authenticator credential, return_authenticator; struct netr_DELTA_ENUM_ARRAY *delta_enum_array = NULL; struct cli_credentials *machine_account; struct dcerpc_pipe *p; struct libnet_context *machine_net_ctx; struct libnet_RpcConnect *c; struct libnet_SamSync_state *state; const enum netr_SamDatabaseID database_ids[] = {SAM_DATABASE_DOMAIN, SAM_DATABASE_BUILTIN, SAM_DATABASE_PRIVS}; unsigned int i; samsync_ctx = talloc_named(mem_ctx, 0, "SamSync top context"); if (!r->in.machine_account) { machine_account = cli_credentials_init(samsync_ctx); if (!machine_account) { talloc_free(samsync_ctx); return NT_STATUS_NO_MEMORY; } cli_credentials_set_conf(machine_account, ctx->lp_ctx); nt_status = cli_credentials_set_machine_account(machine_account, ctx->lp_ctx); if (!NT_STATUS_IS_OK(nt_status)) { r->out.error_string = talloc_strdup(mem_ctx, "Could not obtain machine account password - are we joined to the domain?"); talloc_free(samsync_ctx); return nt_status; } } else { machine_account = r->in.machine_account; } /* We cannot do this unless we are a BDC. Check, before we get odd errors later */ if (cli_credentials_get_secure_channel_type(machine_account) != SEC_CHAN_BDC) { r->out.error_string = talloc_asprintf(mem_ctx, "Our join to domain %s is not as a BDC (%d), please rejoin as a BDC", cli_credentials_get_domain(machine_account), cli_credentials_get_secure_channel_type(machine_account)); talloc_free(samsync_ctx); return NT_STATUS_CANT_ACCESS_DOMAIN_INFO; } c = talloc_zero(samsync_ctx, struct libnet_RpcConnect); if (!c) { r->out.error_string = NULL; talloc_free(samsync_ctx); return NT_STATUS_NO_MEMORY; } c->level = LIBNET_RPC_CONNECT_DC_INFO; if (r->in.binding_string) { c->in.binding = r->in.binding_string; c->in.name = NULL; } else { c->in.binding = NULL; c->in.name = cli_credentials_get_domain(machine_account); } /* prepare connect to the NETLOGON pipe of PDC */ c->in.dcerpc_iface = &ndr_table_netlogon; /* We must do this as the machine, not as any command-line * user. So we override the credentials in the * libnet_context */ machine_net_ctx = talloc(samsync_ctx, struct libnet_context); if (!machine_net_ctx) { r->out.error_string = NULL; talloc_free(samsync_ctx); return NT_STATUS_NO_MEMORY; } *machine_net_ctx = *ctx; machine_net_ctx->cred = machine_account; /* connect to the NETLOGON pipe of the PDC */ nt_status = libnet_RpcConnect(machine_net_ctx, samsync_ctx, c); if (!NT_STATUS_IS_OK(nt_status)) { if (r->in.binding_string) { r->out.error_string = talloc_asprintf(mem_ctx, "Connection to NETLOGON pipe of DC %s failed: %s", r->in.binding_string, c->out.error_string); } else { r->out.error_string = talloc_asprintf(mem_ctx, "Connection to NETLOGON pipe of DC for %s failed: %s", c->in.name, c->out.error_string); } talloc_free(samsync_ctx); return nt_status; } /* This makes a new pipe, on which we can do schannel. We * should do this in the RpcConnect code, but the abstaction * layers do not suit yet */ nt_status = dcerpc_secondary_connection(c->out.dcerpc_pipe, &p, c->out.dcerpc_pipe->binding); if (!NT_STATUS_IS_OK(nt_status)) { r->out.error_string = talloc_asprintf(mem_ctx, "Secondary connection to NETLOGON pipe of DC %s failed: %s", dcerpc_server_name(p), nt_errstr(nt_status)); talloc_free(samsync_ctx); return nt_status; } nt_status = dcerpc_bind_auth_schannel(samsync_ctx, p, &ndr_table_netlogon, machine_account, ctx->lp_ctx, DCERPC_AUTH_LEVEL_PRIVACY); if (!NT_STATUS_IS_OK(nt_status)) { r->out.error_string = talloc_asprintf(mem_ctx, "SCHANNEL authentication to NETLOGON pipe of DC %s failed: %s", dcerpc_server_name(p), nt_errstr(nt_status)); talloc_free(samsync_ctx); return nt_status; } state = talloc(samsync_ctx, struct libnet_SamSync_state); if (!state) { r->out.error_string = NULL; talloc_free(samsync_ctx); return nt_status; } state->domain_name = c->out.domain_name; state->domain_sid = c->out.domain_sid; state->realm = c->out.realm; state->domain_guid = c->out.guid; state->machine_net_ctx = machine_net_ctx; state->netlogon_pipe = p; /* initialise the callback layer. It may wish to contact the * server with ldap, now we know the name */ if (r->in.init_fn) { char *error_string; nt_status = r->in.init_fn(samsync_ctx, r->in.fn_ctx, state, &error_string); if (!NT_STATUS_IS_OK(nt_status)) { r->out.error_string = talloc_steal(mem_ctx, error_string); talloc_free(samsync_ctx); return nt_status; } } /* get NETLOGON credentials */ nt_status = dcerpc_schannel_creds(p->conn->security_state.generic_state, samsync_ctx, &creds); if (!NT_STATUS_IS_OK(nt_status)) { r->out.error_string = talloc_strdup(mem_ctx, "Could not obtain NETLOGON credentials from DCERPC/GENSEC layer"); talloc_free(samsync_ctx); return nt_status; } /* Setup details for the synchronisation */ ZERO_STRUCT(return_authenticator); dbsync.in.logon_server = talloc_asprintf(samsync_ctx, "\\\\%s", dcerpc_server_name(p)); dbsync.in.computername = cli_credentials_get_workstation(machine_account); dbsync.in.preferredmaximumlength = (uint32_t)-1; dbsync.in.return_authenticator = &return_authenticator; dbsync.out.return_authenticator = &return_authenticator; dbsync.out.delta_enum_array = &delta_enum_array; for (i=0;i< ARRAY_SIZE(database_ids); i++) { uint32_t sync_context = 0; dbsync.in.database_id = database_ids[i]; dbsync.in.sync_context = &sync_context; dbsync.out.sync_context = &sync_context; do { uint32_t d; loop_ctx = talloc_named(samsync_ctx, 0, "DatabaseSync loop context"); netlogon_creds_client_authenticator(creds, &credential); dbsync.in.credential = &credential; dbsync_nt_status = dcerpc_netr_DatabaseSync_r(p->binding_handle, loop_ctx, &dbsync); if (NT_STATUS_IS_OK(dbsync_nt_status) && !NT_STATUS_IS_OK(dbsync.out.result)) { dbsync_nt_status = dbsync.out.result; } if (!NT_STATUS_IS_OK(dbsync_nt_status) && !NT_STATUS_EQUAL(dbsync_nt_status, STATUS_MORE_ENTRIES)) { r->out.error_string = talloc_asprintf(mem_ctx, "DatabaseSync failed - %s", nt_errstr(nt_status)); talloc_free(samsync_ctx); return nt_status; } if (!netlogon_creds_client_check(creds, &dbsync.out.return_authenticator->cred)) { r->out.error_string = talloc_strdup(mem_ctx, "Credential chaining on incoming DatabaseSync failed"); talloc_free(samsync_ctx); return NT_STATUS_ACCESS_DENIED; } dbsync.in.sync_context = dbsync.out.sync_context; /* For every single remote 'delta' entry: */ for (d=0; d < delta_enum_array->num_deltas; d++) { char *error_string = NULL; delta_ctx = talloc_named(loop_ctx, 0, "DatabaseSync delta context"); /* 'Fix' elements, by decrypting and * de-obfuscating the data */ nt_status = samsync_fix_delta(delta_ctx, creds, dbsync.in.database_id, &delta_enum_array->delta_enum[d]); if (!NT_STATUS_IS_OK(nt_status)) { r->out.error_string = talloc_steal(mem_ctx, error_string); talloc_free(samsync_ctx); return nt_status; } /* Now call the callback. This will * do something like print the data or * write to an ldb */ nt_status = r->in.delta_fn(delta_ctx, r->in.fn_ctx, dbsync.in.database_id, &delta_enum_array->delta_enum[d], &error_string); if (!NT_STATUS_IS_OK(nt_status)) { r->out.error_string = talloc_steal(mem_ctx, error_string); talloc_free(samsync_ctx); return nt_status; } talloc_free(delta_ctx); } talloc_free(loop_ctx); } while (NT_STATUS_EQUAL(dbsync_nt_status, STATUS_MORE_ENTRIES)); if (!NT_STATUS_IS_OK(dbsync_nt_status)) { r->out.error_string = talloc_asprintf(mem_ctx, "libnet_SamSync_netlogon failed: unexpected inconsistancy. Should not get error %s here", nt_errstr(nt_status)); talloc_free(samsync_ctx); return dbsync_nt_status; } nt_status = NT_STATUS_OK; } talloc_free(samsync_ctx); return nt_status; }
/* initialise a server_context from a open socket and register a event handler for reading from that socket */ static void ldapsrv_accept(struct stream_connection *c, struct auth_session_info *session_info) { struct ldapsrv_service *ldapsrv_service = talloc_get_type(c->private_data, struct ldapsrv_service); struct ldapsrv_connection *conn; struct cli_credentials *server_credentials; struct socket_address *socket_address; NTSTATUS status; int port; conn = talloc_zero(c, struct ldapsrv_connection); if (!conn) { stream_terminate_connection(c, "ldapsrv_accept: out of memory"); return; } conn->packet = NULL; conn->connection = c; conn->service = ldapsrv_service; conn->sockets.raw = c->socket; conn->lp_ctx = ldapsrv_service->task->lp_ctx; c->private_data = conn; socket_address = socket_get_my_addr(c->socket, conn); if (!socket_address) { ldapsrv_terminate_connection(conn, "ldapsrv_accept: failed to obtain local socket address!"); return; } port = socket_address->port; talloc_free(socket_address); if (port == 636) { struct socket_context *tls_socket = tls_init_server(ldapsrv_service->tls_params, c->socket, c->event.fde, NULL); if (!tls_socket) { ldapsrv_terminate_connection(conn, "ldapsrv_accept: tls_init_server() failed"); return; } talloc_steal(c, tls_socket); c->socket = tls_socket; conn->sockets.tls = tls_socket; } else if (port == 3268) /* Global catalog */ { conn->global_catalog = true; } conn->packet = packet_init(conn); if (conn->packet == NULL) { ldapsrv_terminate_connection(conn, "out of memory"); return; } packet_set_private(conn->packet, conn); packet_set_socket(conn->packet, c->socket); packet_set_callback(conn->packet, ldapsrv_decode); packet_set_full_request(conn->packet, ldap_full_packet); packet_set_error_handler(conn->packet, ldapsrv_error_handler); packet_set_event_context(conn->packet, c->event.ctx); packet_set_fde(conn->packet, c->event.fde); packet_set_serialise(conn->packet); if (conn->sockets.tls) { packet_set_unreliable_select(conn->packet); } /* Ensure we don't get packets until the database is ready below */ packet_recv_disable(conn->packet); server_credentials = cli_credentials_init(conn); if (!server_credentials) { stream_terminate_connection(c, "Failed to init server credentials\n"); return; } cli_credentials_set_conf(server_credentials, conn->lp_ctx); status = cli_credentials_set_machine_account(server_credentials, conn->lp_ctx); if (!NT_STATUS_IS_OK(status)) { stream_terminate_connection(c, talloc_asprintf(conn, "Failed to obtain server credentials, perhaps a standalone server?: %s\n", nt_errstr(status))); return; } conn->server_credentials = server_credentials; conn->session_info = talloc_move(conn, &session_info); if (!NT_STATUS_IS_OK(ldapsrv_backend_Init(conn))) { ldapsrv_terminate_connection(conn, "backend Init failed"); return; } /* load limits from the conf partition */ ldapsrv_load_limits(conn); /* should we fail on error ? */ /* register the server */ irpc_add_name(c->msg_ctx, "ldap_server"); /* set connections limits */ conn->limits.ite = event_add_timed(c->event.ctx, conn, timeval_current_ofs(conn->limits.initial_timeout, 0), ldapsrv_conn_init_timeout, conn); packet_recv_enable(conn->packet); }
/* initialise a server_context from a open socket and register a event handler for reading from that socket */ static void ldapsrv_accept(struct stream_connection *c, struct auth_session_info *session_info, bool is_privileged) { struct ldapsrv_service *ldapsrv_service = talloc_get_type(c->private_data, struct ldapsrv_service); struct ldapsrv_connection *conn; struct cli_credentials *server_credentials; struct socket_address *socket_address; NTSTATUS status; int port; int ret; struct tevent_req *subreq; struct timeval endtime; conn = talloc_zero(c, struct ldapsrv_connection); if (!conn) { stream_terminate_connection(c, "ldapsrv_accept: out of memory"); return; } conn->is_privileged = is_privileged; conn->sockets.send_queue = tevent_queue_create(conn, "ldapsev send queue"); if (conn->sockets.send_queue == NULL) { stream_terminate_connection(c, "ldapsrv_accept: tevent_queue_create failed"); return; } TALLOC_FREE(c->event.fde); ret = tstream_bsd_existing_socket(conn, socket_get_fd(c->socket), &conn->sockets.raw); if (ret == -1) { stream_terminate_connection(c, "ldapsrv_accept: out of memory"); return; } socket_set_flags(c->socket, SOCKET_FLAG_NOCLOSE); conn->connection = c; conn->service = ldapsrv_service; conn->lp_ctx = ldapsrv_service->task->lp_ctx; c->private_data = conn; socket_address = socket_get_my_addr(c->socket, conn); if (!socket_address) { ldapsrv_terminate_connection(conn, "ldapsrv_accept: failed to obtain local socket address!"); return; } port = socket_address->port; talloc_free(socket_address); if (port == 3268 || port == 3269) /* Global catalog */ { conn->global_catalog = true; } server_credentials = cli_credentials_init(conn); if (!server_credentials) { stream_terminate_connection(c, "Failed to init server credentials\n"); return; } cli_credentials_set_conf(server_credentials, conn->lp_ctx); status = cli_credentials_set_machine_account(server_credentials, conn->lp_ctx); if (!NT_STATUS_IS_OK(status)) { stream_terminate_connection(c, talloc_asprintf(conn, "Failed to obtain server credentials, perhaps a standalone server?: %s\n", nt_errstr(status))); return; } conn->server_credentials = server_credentials; conn->session_info = session_info; if (!NT_STATUS_IS_OK(ldapsrv_backend_Init(conn))) { ldapsrv_terminate_connection(conn, "backend Init failed"); return; } /* load limits from the conf partition */ ldapsrv_load_limits(conn); /* should we fail on error ? */ /* register the server */ irpc_add_name(c->msg_ctx, "ldap_server"); conn->sockets.active = conn->sockets.raw; if (port != 636 && port != 3269) { ldapsrv_call_read_next(conn); return; } endtime = timeval_current_ofs(conn->limits.conn_idle_time, 0); subreq = tstream_tls_accept_send(conn, conn->connection->event.ctx, conn->sockets.raw, conn->service->tls_params); if (subreq == NULL) { ldapsrv_terminate_connection(conn, "ldapsrv_accept: " "no memory for tstream_tls_accept_send"); return; } tevent_req_set_endtime(subreq, conn->connection->event.ctx, endtime); tevent_req_set_callback(subreq, ldapsrv_accept_tls_done, conn); }
static NTSTATUS remote_op_bind(struct dcesrv_call_state *dce_call, const struct dcesrv_interface *iface, uint32_t if_version) { NTSTATUS status; const struct ndr_interface_table *table; struct dcesrv_remote_private *priv; const char *binding = lpcfg_parm_string(dce_call->conn->dce_ctx->lp_ctx, NULL, "dcerpc_remote", "binding"); const char *user, *pass, *domain; struct cli_credentials *credentials; bool must_free_credentials = true; bool machine_account; struct dcerpc_binding *b; struct composite_context *pipe_conn_req; machine_account = lpcfg_parm_bool(dce_call->conn->dce_ctx->lp_ctx, NULL, "dcerpc_remote", "use_machine_account", false); priv = talloc(dce_call->conn, struct dcesrv_remote_private); if (!priv) { return NT_STATUS_NO_MEMORY; } priv->c_pipe = NULL; dce_call->context->private_data = priv; if (!binding) { DEBUG(0,("You must specify a DCE/RPC binding string\n")); return NT_STATUS_INVALID_PARAMETER; } user = lpcfg_parm_string(dce_call->conn->dce_ctx->lp_ctx, NULL, "dcerpc_remote", "user"); pass = lpcfg_parm_string(dce_call->conn->dce_ctx->lp_ctx, NULL, "dcerpc_remote", "password"); domain = lpcfg_parm_string(dce_call->conn->dce_ctx->lp_ctx, NULL, "dceprc_remote", "domain"); table = ndr_table_by_syntax(&iface->syntax_id); if (!table) { dce_call->fault_code = DCERPC_FAULT_UNK_IF; return NT_STATUS_NET_WRITE_FAULT; } if (user && pass) { DEBUG(5, ("dcerpc_remote: RPC Proxy: Using specified account\n")); credentials = cli_credentials_init(priv); if (!credentials) { return NT_STATUS_NO_MEMORY; } cli_credentials_set_conf(credentials, dce_call->conn->dce_ctx->lp_ctx); cli_credentials_set_username(credentials, user, CRED_SPECIFIED); if (domain) { cli_credentials_set_domain(credentials, domain, CRED_SPECIFIED); } cli_credentials_set_password(credentials, pass, CRED_SPECIFIED); } else if (machine_account) { DEBUG(5, ("dcerpc_remote: RPC Proxy: Using machine account\n")); credentials = cli_credentials_init(priv); cli_credentials_set_conf(credentials, dce_call->conn->dce_ctx->lp_ctx); if (domain) { cli_credentials_set_domain(credentials, domain, CRED_SPECIFIED); } status = cli_credentials_set_machine_account(credentials, dce_call->conn->dce_ctx->lp_ctx); if (!NT_STATUS_IS_OK(status)) { return status; } } else if (dce_call->conn->auth_state.session_info->credentials) { DEBUG(5, ("dcerpc_remote: RPC Proxy: Using delegated credentials\n")); credentials = dce_call->conn->auth_state.session_info->credentials; must_free_credentials = false; } else { DEBUG(1,("dcerpc_remote: RPC Proxy: You must supply binding, user and password or have delegated credentials\n")); return NT_STATUS_INVALID_PARAMETER; } /* parse binding string to the structure */ status = dcerpc_parse_binding(dce_call->context, binding, &b); if (!NT_STATUS_IS_OK(status)) { DEBUG(0, ("Failed to parse dcerpc binding '%s'\n", binding)); return status; } /* If we already have a remote association group ID, then use that */ if (dce_call->context->assoc_group->proxied_id != 0) { status = dcerpc_binding_set_assoc_group_id(b, dce_call->context->assoc_group->proxied_id); if (!NT_STATUS_IS_OK(status)) { DEBUG(0, ("dcerpc_binding_set_assoc_group_id() - %s'\n", nt_errstr(status))); return status; } } status = dcerpc_binding_set_abstract_syntax(b, &iface->syntax_id); if (!NT_STATUS_IS_OK(status)) { DEBUG(0, ("dcerpc_binding_set_abstract_syntax() - %s'\n", nt_errstr(status))); return status; } DEBUG(3, ("Using binding %s\n", dcerpc_binding_string(dce_call->context, b))); pipe_conn_req = dcerpc_pipe_connect_b_send(dce_call->context, b, table, credentials, dce_call->event_ctx, dce_call->conn->dce_ctx->lp_ctx); status = dcerpc_pipe_connect_b_recv(pipe_conn_req, dce_call->context, &(priv->c_pipe)); if (must_free_credentials) { talloc_free(credentials); } if (!NT_STATUS_IS_OK(status)) { return status; } if (dce_call->context->assoc_group->proxied_id == 0) { dce_call->context->assoc_group->proxied_id = dcerpc_binding_get_assoc_group_id(priv->c_pipe->binding); } if (!NT_STATUS_IS_OK(status)) { return status; } return NT_STATUS_OK; }
/* Hook to allow GENSEC to handle blob-based authentication * mechanisms, without directly linking the mechansim code */ static NTSTATUS prepare_gensec(TALLOC_CTX *mem_ctx, struct gensec_security **gensec_context) { NTSTATUS status; struct loadparm_context *lp_ctx; struct tevent_context *event_ctx; TALLOC_CTX *frame = talloc_stackframe(); struct gensec_security *gensec_ctx; struct imessaging_context *msg_ctx; struct cli_credentials *server_credentials; lp_ctx = loadparm_init_s3(frame, loadparm_s3_context()); if (lp_ctx == NULL) { DEBUG(1, ("loadparm_init_s3 failed\n")); TALLOC_FREE(frame); return NT_STATUS_INVALID_SERVER_STATE; } event_ctx = s4_event_context_init(frame); if (event_ctx == NULL) { DEBUG(1, ("s4_event_context_init failed\n")); TALLOC_FREE(frame); return NT_STATUS_INVALID_SERVER_STATE; } msg_ctx = imessaging_client_init(frame, lp_ctx, event_ctx); if (msg_ctx == NULL) { DEBUG(1, ("imessaging_init failed\n")); TALLOC_FREE(frame); return NT_STATUS_INVALID_SERVER_STATE; } server_credentials = cli_credentials_init(frame); if (!server_credentials) { DEBUG(1, ("Failed to init server credentials")); TALLOC_FREE(frame); return NT_STATUS_INVALID_SERVER_STATE; } cli_credentials_set_conf(server_credentials, lp_ctx); status = cli_credentials_set_machine_account(server_credentials, lp_ctx); if (!NT_STATUS_IS_OK(status)) { DEBUG(10, ("Failed to obtain server credentials, perhaps a standalone server?: %s\n", nt_errstr(status))); talloc_free(server_credentials); server_credentials = NULL; } status = samba_server_gensec_start(mem_ctx, event_ctx, msg_ctx, lp_ctx, server_credentials, "cifs", &gensec_ctx); if (!NT_STATUS_IS_OK(status)) { DEBUG(1, ("Failed to start GENSEC server code: %s\n", nt_errstr(status))); TALLOC_FREE(frame); return status; } talloc_reparent(frame, gensec_ctx, msg_ctx); talloc_reparent(frame, gensec_ctx, event_ctx); talloc_reparent(frame, gensec_ctx, lp_ctx); talloc_reparent(frame, gensec_ctx, server_credentials); gensec_want_feature(gensec_ctx, GENSEC_FEATURE_SESSION_KEY); gensec_want_feature(gensec_ctx, GENSEC_FEATURE_UNIX_TOKEN); *gensec_context = gensec_ctx; TALLOC_FREE(frame); return status; }
/* connect to a share - used when a tree_connect operation comes in. */ static NTSTATUS cvfs_connect(struct ntvfs_module_context *ntvfs, struct ntvfs_request *req, union smb_tcon* tcon) { NTSTATUS status; struct cvfs_private *p; const char *host, *user, *pass, *domain, *remote_share, *sharename; struct share_config *scfg = ntvfs->ctx->config; struct smb2_tree *tree; struct cli_credentials *credentials; bool machine_account; struct smbcli_options options; switch (tcon->generic.level) { case RAW_TCON_TCON: sharename = tcon->tcon.in.service; break; case RAW_TCON_TCONX: sharename = tcon->tconx.in.path; break; case RAW_TCON_SMB2: sharename = tcon->smb2.in.path; break; default: return NT_STATUS_INVALID_LEVEL; } if (strncmp(sharename, "\\\\", 2) == 0) { char *str = strchr(sharename+2, '\\'); if (str) { sharename = str + 1; } } /* Here we need to determine which server to connect to. * For now we use parametric options, type cifs. */ host = share_string_option(scfg, SMB2_SERVER, NULL); user = share_string_option(scfg, SMB2_USER, NULL); pass = share_string_option(scfg, SMB2_PASSWORD, NULL); domain = share_string_option(scfg, SMB2_DOMAIN, NULL); remote_share = share_string_option(scfg, SMB2_SHARE, NULL); if (!remote_share) { remote_share = sharename; } machine_account = share_bool_option(scfg, SMB2_USE_MACHINE_ACCT, SMB2_USE_MACHINE_ACCT_DEFAULT); p = talloc_zero(ntvfs, struct cvfs_private); if (!p) { return NT_STATUS_NO_MEMORY; } ntvfs->private_data = p; if (!host) { DEBUG(1,("CIFS backend: You must supply server\n")); return NT_STATUS_INVALID_PARAMETER; } if (user && pass) { DEBUG(5, ("CIFS backend: Using specified password\n")); credentials = cli_credentials_init(p); if (!credentials) { return NT_STATUS_NO_MEMORY; } cli_credentials_set_conf(credentials, ntvfs->ctx->lp_ctx); cli_credentials_set_username(credentials, user, CRED_SPECIFIED); if (domain) { cli_credentials_set_domain(credentials, domain, CRED_SPECIFIED); } cli_credentials_set_password(credentials, pass, CRED_SPECIFIED); } else if (machine_account) { DEBUG(5, ("CIFS backend: Using machine account\n")); credentials = cli_credentials_init(p); cli_credentials_set_conf(credentials, ntvfs->ctx->lp_ctx); if (domain) { cli_credentials_set_domain(credentials, domain, CRED_SPECIFIED); } status = cli_credentials_set_machine_account(credentials, ntvfs->ctx->lp_ctx); if (!NT_STATUS_IS_OK(status)) { return status; } } else if (req->session_info->credentials) { DEBUG(5, ("CIFS backend: Using delegated credentials\n")); credentials = req->session_info->credentials; } else { DEBUG(1,("CIFS backend: NO delegated credentials found: You must supply server, user and password or the client must supply delegated credentials\n")); return NT_STATUS_INVALID_PARAMETER; } lpcfg_smbcli_options(ntvfs->ctx->lp_ctx, &options); status = smb2_connect(p, host, lpcfg_parm_string_list(p, ntvfs->ctx->lp_ctx, NULL, "smb2", "ports", NULL), remote_share, lpcfg_resolve_context(ntvfs->ctx->lp_ctx), credentials, &tree, ntvfs->ctx->event_ctx, &options, lpcfg_socket_options(ntvfs->ctx->lp_ctx), lpcfg_gensec_settings(p, ntvfs->ctx->lp_ctx)); NT_STATUS_NOT_OK_RETURN(status); status = smb2_get_roothandle(tree, &p->roothandle); NT_STATUS_NOT_OK_RETURN(status); p->tree = tree; p->transport = p->tree->session->transport; p->ntvfs = ntvfs; ntvfs->ctx->fs_type = talloc_strdup(ntvfs->ctx, "NTFS"); NT_STATUS_HAVE_NO_MEMORY(ntvfs->ctx->fs_type); ntvfs->ctx->dev_type = talloc_strdup(ntvfs->ctx, "A:"); NT_STATUS_HAVE_NO_MEMORY(ntvfs->ctx->dev_type); if (tcon->generic.level == RAW_TCON_TCONX) { tcon->tconx.out.fs_type = ntvfs->ctx->fs_type; tcon->tconx.out.dev_type = ntvfs->ctx->dev_type; } /* we need to receive oplock break requests from the server */ /* TODO: enable oplocks smbcli_oplock_handler(p->transport, oplock_handler, p); */ return NT_STATUS_OK; }