diff options
Diffstat (limited to 'binding/aia-uds-bluez.c')
| -rw-r--r-- | binding/aia-uds-bluez.c | 607 |
1 files changed, 0 insertions, 607 deletions
diff --git a/binding/aia-uds-bluez.c b/binding/aia-uds-bluez.c deleted file mode 100644 index 35ba61d..0000000 --- a/binding/aia-uds-bluez.c +++ /dev/null @@ -1,607 +0,0 @@ -/* - * Copyright (C) 2015, 2016, 2017 "IoT.bzh" - * Author: José Bollo <jose.bollo@iot.bzh> - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ -#define _GNU_SOURCE - -#include <stdlib.h> -#include <stdint.h> -#include <string.h> -#include <errno.h> - -#include <systemd/sd-bus.h> - -#include "aia-uds-bluez.h" - -#define ROOT "/uds" - -#define ITF_SERVICE "org.bluez.GattService1" -#define ITF_CHARACTERISTIC "org.bluez.GattCharacteristic1" -#define ITF_DESCRIPTOR "org.bluez.GattDescriptor1" - -/****** internal types **********/ - -struct item -{ - const char *uuid; - const char *path; - struct item *parent; - struct aia_uds_value *value; -}; - -/****** internal data **********/ - -static sd_bus *busini; -static int activation; - -static aia_uds_on_change on_change_callback; - -static struct aia_uds uds; - -static struct aia_uds uds_descs = -{ - .first_name = { .data = "First name of the user" }, - .last_name = { .data = "Last name of the user" }, - .email = { .data = "Email of the user" }, - .language = { .data = "The Language definition is based on ISO639-1" } -}; - -static struct aia_uds_value woutf8 = { .data = "\031\000\047\000\001\000\000", .length = 7 }; - -static struct item services[1] = -{ - { - .uuid = "0000181C-0000-1000-8000-00805f9b34fb", - .path = ROOT"/service0" - } -}; - -static struct item characteristics[4] = -{ - { - .uuid = "00002A8A-0000-1000-8000-00805f9b34fb", - .path = ROOT"/service0/char0", - .parent = &services[0], - .value = &uds.first_name - }, { - .uuid = "00002A90-0000-1000-8000-00805f9b34fb", - .path = ROOT"/service0/char1", - .parent = &services[0], - .value = &uds.last_name - }, { - .uuid = "00002A87-0000-1000-8000-00805f9b34fb", - .path = ROOT"/service0/char2", - .parent = &services[0], - .value = &uds.email - }, { - .uuid = "00002AA2-0000-1000-8000-00805f9b34fb", - .path = ROOT"/service0/char3", - .parent = &services[0], - .value = &uds.language - } -}; - -static struct item descriptors[8] = -{ - { - .uuid = "00002901-0000-1000-8000-00805f9b34fb", - .path = ROOT"/service0/char0/desc0", - .parent = &characteristics[0], - .value = &uds_descs.first_name - }, { - .uuid = "00002904-0000-1000-8000-00805f9b34fb", - .path = ROOT"/service0/char0/desc1", - .parent = &characteristics[0], - .value = &woutf8 - }, { - .uuid = "00002901-0000-1000-8000-00805f9b34fb", - .path = ROOT"/service0/char1/desc0", - .parent = &characteristics[1], - .value = &uds_descs.last_name - }, { - .uuid = "00002904-0000-1000-8000-00805f9b34fb", - .path = ROOT"/service0/char1/desc1", - .parent = &characteristics[1], - .value = &woutf8 - }, { - .uuid = "00002901-0000-1000-8000-00805f9b34fb", - .path = ROOT"/service0/char2/desc0", - .parent = &characteristics[2], - .value = &uds_descs.email - }, { - .uuid = "00002904-0000-1000-8000-00805f9b34fb", - .path = ROOT"/service0/char2/desc1", - .parent = &characteristics[2], - .value = &woutf8 - }, { - .uuid = "00002901-0000-1000-8000-00805f9b34fb", - .path = ROOT"/service0/char3/desc0", - .parent = &characteristics[3], - .value = &uds_descs.language - }, { - .uuid = "00002904-0000-1000-8000-00805f9b34fb", - .path = ROOT"/service0/char3/desc1", - .parent = &characteristics[3], - .value = &woutf8 - } -}; - -/****** utility ***********/ - -static uint16_t get_offset(sd_bus_message *m) -{ - uint16_t offset; - const char *key; - - if (0 < sd_bus_message_enter_container(m, SD_BUS_TYPE_DICT_ENTRY, "sv")) { - while (sd_bus_message_read_basic(m, 's', &key) > 0) { - if (strcmp(key,"offset")) - sd_bus_message_skip(m, "v"); - else { - if (sd_bus_message_enter_container(m, SD_BUS_TYPE_VARIANT, "q")) { - sd_bus_message_read_basic(m, 'q', &offset); - sd_bus_message_exit_container(m); - return offset; - } - } - } - sd_bus_message_exit_container(m); - } - return 0; -} - -static int message_append_strings(sd_bus_message *m, const char **s) -{ - int rc = sd_bus_message_open_container(m, SD_BUS_TYPE_ARRAY, "s"); - while (rc >= 0 && *s) - rc = sd_bus_message_append_basic(m, 's', *s++); - if (rc >= 0) - rc = sd_bus_message_close_container(m); - return rc; -} - -/****** common callbacks ***********/ - -static int get_uuid( - struct sd_bus *bus, - const char *path, - const char *interface, - const char *property, - sd_bus_message *reply, - void *userdata, - sd_bus_error *ret_error) -{ - struct item *item = userdata; - return sd_bus_message_append_basic(reply, 's', item->uuid); -} - -static int get_parent( - struct sd_bus *bus, - const char *path, - const char *interface, - const char *property, - sd_bus_message *reply, - void *userdata, - sd_bus_error *ret_error) -{ - struct item *item = userdata; - return sd_bus_message_append_basic(reply, 'o', item->parent->path); -} - -static int get_children( - struct sd_bus *bus, - const char *path, - const char *interface, - const char *property, - sd_bus_message *reply, - void *userdata, - sd_bus_error *ret_error) -{ - size_t i, n; - int rc; - - rc = sd_bus_message_open_container(reply, SD_BUS_TYPE_ARRAY, "o"); - n = sizeof characteristics / sizeof *characteristics; - i = 0; - while (rc >= 0 && i < n) { - if (characteristics[i].parent == userdata) - rc = sd_bus_message_append_basic(reply, 'o', characteristics[i].path); - i++; - } - n = sizeof descriptors / sizeof *descriptors; - i = 0; - while (rc >= 0 && i < n) { - if (descriptors[i].parent == userdata) - rc = sd_bus_message_append_basic(reply, 'o', descriptors[i].path); - i++; - } - if (rc >= 0) - rc = sd_bus_message_close_container(reply); - return rc; -} - -static int read_value_offset( - struct item *item, - size_t offset, - sd_bus_message *reply) -{ - struct aia_uds_value *value = item->value; - const char *data = value ? value->data : NULL; - size_t size = !value ? 0 : value->length ? value->length : data ? strlen(data) : 0; - return sd_bus_message_append_array(reply, 'y', &data[offset], offset > size ? 0 : size - offset); -} - -static int read_value( - sd_bus_message *m, - void *userdata, - sd_bus_error *ret_error) -{ - int rc; - sd_bus_message *r; - - rc = sd_bus_message_new_method_return(m, &r); - rc = read_value_offset(userdata, get_offset(m), r); - rc = sd_bus_send(NULL, r, NULL); - return 1; -} - -static int write_value_offset( - struct item *item, - size_t offset, - const char *buffer, - size_t length) -{ - struct aia_uds_value *value = item->value; - const char *data = value ? value->data : NULL; - size_t size = !value ? 0 : value->length ? value->length : data ? strlen(data) : 0; - - - char *next = malloc(offset + length + 1); - if (!next) - return -ENOMEM; - if (offset) { - if (size >= offset) - memcpy(next, data, offset); - else { - memcpy(next, data, size); - memset(&next[size], 0, offset - size); - } - } - memcpy(&next[offset], buffer, length); - next[offset + length] = 0; - value->data = next; - value->length = offset + length; - free((char*)data); - - return 0; -} - -static int write_value( - sd_bus_message *m, - void *userdata, - sd_bus_error *ret_error) -{ - int rc; - struct item *item = userdata; - const void *data; - size_t size; - sd_bus_message *r; - - rc = sd_bus_message_read_array(m, 'y', &data, &size); - rc = write_value_offset(item, get_offset(m), data, size); - - rc = sd_bus_message_new_method_return(m, &r); - rc = sd_bus_send(NULL, r, NULL); - - sd_bus_emit_properties_changed(sd_bus_message_get_bus(m), item->path, ITF_CHARACTERISTIC, "Value", NULL); - - if (on_change_callback) { - item->value->changed = 1; - on_change_callback(&uds); - item->value->changed = 0; - } - - return 1; -} - -static int get_value( - struct sd_bus *bus, - const char *path, - const char *interface, - const char *property, - sd_bus_message *reply, - void *userdata, - sd_bus_error *ret_error) -{ - return read_value_offset(userdata, 0, reply); -} - -static int get_true( - struct sd_bus *bus, - const char *path, - const char *interface, - const char *property, - sd_bus_message *reply, - void *userdata, - sd_bus_error *ret_error) -{ - int v = 1; - return sd_bus_message_append_basic(reply, 'b', &v); -} - -static int get_false( - struct sd_bus *bus, - const char *path, - const char *interface, - const char *property, - sd_bus_message *reply, - void *userdata, - sd_bus_error *ret_error) -{ - int v = 0; - return sd_bus_message_append_basic(reply, 'b', &v); -} - -static int not_supported( - sd_bus_message *m, - void *userdata, - sd_bus_error *ret_error) -{ - return sd_bus_reply_method_errorf(m, "org.bluez.Error.NotSupported", "not supported"); -} - -static int not_permitted( - sd_bus_message *m, - void *userdata, - sd_bus_error *ret_error) -{ - return sd_bus_reply_method_errorf(m, "org.bluez.Error.NotPermitted", "not permitted"); -} - -static int failed( - sd_bus_message *m, - void *userdata, - sd_bus_error *ret_error) -{ - return sd_bus_reply_method_errorf(m, "org.bluez.Error.Failed", "failed"); -} - -/****** service's callbacks ***********/ - -static int get_srv_includes( - struct sd_bus *bus, - const char *path, - const char *interface, - const char *property, - sd_bus_message *reply, - void *userdata, - sd_bus_error *ret_error) -{ - int rc = sd_bus_message_open_container(reply, SD_BUS_TYPE_ARRAY, "o"); - if (rc >= 0) - rc = sd_bus_message_close_container(reply); - return rc; -} - -/****** characteristic's callbacks ***********/ - -static int get_char_flags( - struct sd_bus *bus, - const char *path, - const char *interface, - const char *property, - sd_bus_message *reply, - void *userdata, - sd_bus_error *ret_error) -{ - static const char *flags[] = { "read", "write", NULL }; - return message_append_strings(reply, flags); -} - -/****** descriptor's callbacks ***********/ - -static int get_desc_flags( - struct sd_bus *bus, - const char *path, - const char *interface, - const char *property, - sd_bus_message *reply, - void *userdata, - sd_bus_error *ret_error) -{ - static const char *flags[] = { "read", NULL }; - return message_append_strings(reply, flags); -} - -/****** description ***********/ - -static struct sd_bus_vtable vservice[] = { - SD_BUS_VTABLE_START(0), - - SD_BUS_PROPERTY("UUID", "s", get_uuid, 0, SD_BUS_VTABLE_PROPERTY_CONST), - SD_BUS_PROPERTY("Primary", "b", get_true, 0, SD_BUS_VTABLE_PROPERTY_CONST), - SD_BUS_PROPERTY("Includes", "ao", get_srv_includes, 0, SD_BUS_VTABLE_PROPERTY_CONST), - SD_BUS_PROPERTY("Characteristics", "ao", get_children, 0, SD_BUS_VTABLE_PROPERTY_CONST), - - SD_BUS_VTABLE_END -}; - - -static struct sd_bus_vtable vcharacteristic[] = { - SD_BUS_VTABLE_START(0), - - SD_BUS_METHOD("ReadValue", "a{sv}", "ay", read_value, 0), - SD_BUS_METHOD("WriteValue", "aya{sv}", "", write_value, 0), - SD_BUS_METHOD("StartNotify", "", "", not_supported, 0), - SD_BUS_METHOD("StopNotify", "", "", failed, 0), - - SD_BUS_PROPERTY("UUID", "s", get_uuid, 0, SD_BUS_VTABLE_PROPERTY_CONST), - SD_BUS_PROPERTY("Service", "o", get_parent, 0, SD_BUS_VTABLE_PROPERTY_CONST), - SD_BUS_PROPERTY("Value", "ay", get_value, 0, 0), - SD_BUS_PROPERTY("WriteAcquired", "b", get_false, 0, 0), - SD_BUS_PROPERTY("NotifyAcquired", "b", get_false, 0, 0), - SD_BUS_PROPERTY("Notifying", "b", get_false, 0, 0), - SD_BUS_PROPERTY("Flags", "as", get_char_flags, 0, 0), - SD_BUS_PROPERTY("Descriptors", "ao", get_children, 0, 0), - - SD_BUS_VTABLE_END -}; - - -static struct sd_bus_vtable vdescriptor[] = { - SD_BUS_VTABLE_START(0), - - SD_BUS_METHOD("ReadValue", "a{sv}", "ay", read_value, 0), - SD_BUS_METHOD("WriteValue", "aya{sv}", "", not_permitted, 0), - - SD_BUS_PROPERTY("UUID", "s", get_uuid, 0, SD_BUS_VTABLE_PROPERTY_CONST), - SD_BUS_PROPERTY("Characteristic", "o", get_parent, 0, SD_BUS_VTABLE_PROPERTY_CONST), - SD_BUS_PROPERTY("Value", "ay", get_value, 0, 0), - SD_BUS_PROPERTY("Flags", "as", get_desc_flags, 0, 0), - - SD_BUS_VTABLE_END -}; - - -/******** Integration ***************/ - -aia_uds_on_change aia_uds_set_on_change(aia_uds_on_change callback) -{ - aia_uds_on_change prev = on_change_callback; - on_change_callback = callback; - return prev; -} - -int aia_uds_init(struct sd_bus *bus) -{ - int rc; - - if (busini) - return 0; - - rc = sd_bus_add_object_manager(bus, NULL, ROOT); - - rc = sd_bus_add_object_vtable(bus, NULL, services[0].path, - ITF_SERVICE, vservice, &services[0]); - - rc = sd_bus_add_object_vtable(bus, NULL, characteristics[0].path, - ITF_CHARACTERISTIC, vcharacteristic, &characteristics[0]); - rc = sd_bus_add_object_vtable(bus, NULL, characteristics[1].path, - ITF_CHARACTERISTIC, vcharacteristic, &characteristics[1]); - rc = sd_bus_add_object_vtable(bus, NULL, characteristics[2].path, - ITF_CHARACTERISTIC, vcharacteristic, &characteristics[2]); - rc = sd_bus_add_object_vtable(bus, NULL, characteristics[3].path, - ITF_CHARACTERISTIC, vcharacteristic, &characteristics[3]); - - rc = sd_bus_add_object_vtable(bus, NULL, descriptors[0].path, - ITF_DESCRIPTOR, vdescriptor, &descriptors[0]); - rc = sd_bus_add_object_vtable(bus, NULL, descriptors[1].path, - ITF_DESCRIPTOR, vdescriptor, &descriptors[1]); - rc = sd_bus_add_object_vtable(bus, NULL, descriptors[2].path, - ITF_DESCRIPTOR, vdescriptor, &descriptors[2]); - rc = sd_bus_add_object_vtable(bus, NULL, descriptors[3].path, - ITF_DESCRIPTOR, vdescriptor, &descriptors[3]); - rc = sd_bus_add_object_vtable(bus, NULL, descriptors[4].path, - ITF_DESCRIPTOR, vdescriptor, &descriptors[4]); - rc = sd_bus_add_object_vtable(bus, NULL, descriptors[5].path, - ITF_DESCRIPTOR, vdescriptor, &descriptors[5]); - rc = sd_bus_add_object_vtable(bus, NULL, descriptors[6].path, - ITF_DESCRIPTOR, vdescriptor, &descriptors[6]); - rc = sd_bus_add_object_vtable(bus, NULL, descriptors[7].path, - ITF_DESCRIPTOR, vdescriptor, &descriptors[7]); - - busini = sd_bus_ref(bus); - return 0; -} - -struct cb { - void *callback; - void *closure; - int onoff; -}; - -static struct cb *alloccb(void *callback, void *closure, int onoff) -{ - struct cb *cb = malloc(sizeof *cb); - if (cb) { - cb->callback = callback; - cb->closure = closure; - } - return cb; -} - -static int register_uds_cb(sd_bus_message *m, void *userdata, sd_bus_error *ret_error) -{ - struct cb *cb = userdata; - void (*callback)(void *closure, int error, int state); - int iserr; - - iserr = sd_bus_message_is_method_error(m, NULL); - if (!iserr) - activation = cb->onoff; - callback = cb->callback; - if (callback) - callback(cb->closure, iserr, activation); - free(cb); - - return 1; -} - -static int register_uds(int onoff, void *data) -{ - int rc; - sd_bus_message *m; - - rc = sd_bus_message_new_method_call(busini, &m, "org.bluez", - "/org/bluez/hci0", "org.bluez.GattManager1", - onoff ? "RegisterApplication" : "UnregisterApplication" ); - rc = sd_bus_message_append_basic(m, 'o', ROOT); - if (onoff) { - rc = sd_bus_message_open_container(m, 'a', "{sv}"); - rc = sd_bus_message_close_container(m); - } - rc = sd_bus_call_async(busini, NULL, m, register_uds_cb, data, 5*1000*1000); - sd_bus_message_unref(m); - return rc; -} - -int aia_uds_activate(int onoff, void (*callback)(void *closure, int error, int state), void *closure) -{ - int rc; - struct cb *cb; - - if (!busini) - return -EINVAL; - - onoff = !!onoff; - if (activation == onoff) - return 0; - - cb = alloccb(callback, closure, onoff); - if (!cb) - return -ENOMEM; - - rc = register_uds(onoff, cb); - if (rc < 0) - free(cb); - - return rc < 0 ? rc : 1; -} - -int aia_uds_advise(int onoff, void (*callback)(void *closure, int error, int state), void *closure) -{ - return aia_uds_activate(onoff, callback, closure); -} - |