da40c00137
Also make important events in init's life NOTICE rather than INFO, and ensure that NOTICE events actually make it to the kernel log. Also fix the logging so that if you have a printf format string error, the compiler now catches it. Also give messages from init, ueventd, and watchdogd distinct tags. (Previously they'd all call themselves "init", and dmesg doesn't include pids, so you couldn't untangle them.) Also include the tag in SELinux messages. Bug: 19544788 Change-Id: Ica6daea065bfdb80155c52c0b06f346a7df208fe
123 lines
3.2 KiB
C++
123 lines
3.2 KiB
C++
/*
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* Copyright (C) 2010 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <errno.h>
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#include <fcntl.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <linux/keychord.h>
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#include <unistd.h>
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#include "init.h"
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#include "log.h"
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#include "property_service.h"
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static struct input_keychord *keychords = 0;
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static int keychords_count = 0;
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static int keychords_length = 0;
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static int keychord_fd = -1;
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void add_service_keycodes(struct service *svc)
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{
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struct input_keychord *keychord;
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int i, size;
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if (svc->keycodes) {
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/* add a new keychord to the list */
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size = sizeof(*keychord) + svc->nkeycodes * sizeof(keychord->keycodes[0]);
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keychords = (input_keychord*) realloc(keychords, keychords_length + size);
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if (!keychords) {
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ERROR("could not allocate keychords\n");
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keychords_length = 0;
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keychords_count = 0;
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return;
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}
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keychord = (struct input_keychord *)((char *)keychords + keychords_length);
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keychord->version = KEYCHORD_VERSION;
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keychord->id = keychords_count + 1;
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keychord->count = svc->nkeycodes;
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svc->keychord_id = keychord->id;
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for (i = 0; i < svc->nkeycodes; i++) {
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keychord->keycodes[i] = svc->keycodes[i];
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}
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keychords_count++;
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keychords_length += size;
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}
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}
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void keychord_init()
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{
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int fd, ret;
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service_for_each(add_service_keycodes);
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/* nothing to do if no services require keychords */
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if (!keychords)
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return;
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fd = open("/dev/keychord", O_RDWR | O_CLOEXEC);
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if (fd < 0) {
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ERROR("could not open /dev/keychord\n");
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return;
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}
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ret = write(fd, keychords, keychords_length);
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if (ret != keychords_length) {
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ERROR("could not configure /dev/keychord %d: %s\n", ret, strerror(errno));
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close(fd);
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fd = -1;
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}
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free(keychords);
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keychords = 0;
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keychord_fd = fd;
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}
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void handle_keychord()
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{
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struct service *svc;
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char adb_enabled[PROP_VALUE_MAX];
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int ret;
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__u16 id;
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// Only handle keychords if adb is enabled.
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property_get("init.svc.adbd", adb_enabled);
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ret = read(keychord_fd, &id, sizeof(id));
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if (ret != sizeof(id)) {
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ERROR("could not read keychord id\n");
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return;
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}
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if (!strcmp(adb_enabled, "running")) {
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svc = service_find_by_keychord(id);
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if (svc) {
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INFO("Starting service %s from keychord\n", svc->name);
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service_start(svc, NULL);
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} else {
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ERROR("service for keychord %d not found\n", id);
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}
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}
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}
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int get_keychord_fd()
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{
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return keychord_fd;
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}
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