property_service.c revision 63207cd20f2156bec937a85e789f07de0d1afa9d
1dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 2dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Copyright (C) 2007 The Android Open Source Project 3dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * 4dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 5dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * you may not use this file except in compliance with the License. 6dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * You may obtain a copy of the License at 7dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * 8dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 9dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * 10dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 11dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 12dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * See the License for the specific language governing permissions and 14dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * limitations under the License. 15dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 16dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 17dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <stdio.h> 18dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <stdlib.h> 19dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <unistd.h> 20dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <string.h> 21dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <ctype.h> 22dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <fcntl.h> 23dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <stdarg.h> 24dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <dirent.h> 25dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <limits.h> 26dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <errno.h> 27dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 28dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <cutils/misc.h> 29dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <cutils/sockets.h> 30dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 31dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#define _REALLY_INCLUDE_SYS__SYSTEM_PROPERTIES_H_ 32dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <sys/_system_properties.h> 33dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 34dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <sys/socket.h> 35dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <sys/un.h> 36dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <sys/select.h> 37dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <sys/types.h> 38dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <netinet/in.h> 39dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <sys/mman.h> 40dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <sys/atomics.h> 41dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <private/android_filesystem_config.h> 42dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 4363207cd20f2156bec937a85e789f07de0d1afa9drpcraig#ifdef HAVE_SELINUX 4463207cd20f2156bec937a85e789f07de0d1afa9drpcraig#include <selinux/selinux.h> 4563207cd20f2156bec937a85e789f07de0d1afa9drpcraig#include <selinux/label.h> 4663207cd20f2156bec937a85e789f07de0d1afa9drpcraig#endif 4763207cd20f2156bec937a85e789f07de0d1afa9drpcraig 48dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include "property_service.h" 49dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include "init.h" 503899e9fc01cf608f19f716749c54cc5c4d17e766Colin Cross#include "util.h" 51ed8a7d84428ec945c48b6b53dc5a3a18fabaf683Colin Cross#include "log.h" 52dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 53dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#define PERSISTENT_PROPERTY_DIR "/data/property" 54dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 55dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic int persistent_properties_loaded = 0; 563294bbbad9494eb4ca534624b96e39f8ed15aaf2Colin Crossstatic int property_area_inited = 0; 57dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 58d11beb2b1516144327c3f730f75e6b4bc65f1374Colin Crossstatic int property_set_fd = -1; 59d11beb2b1516144327c3f730f75e6b4bc65f1374Colin Cross 60dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* White list of permissions for setting property services. */ 61dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstruct { 62dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project const char *prefix; 63dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project unsigned int uid; 64c5e7ef24308f5a993ecfd5ac438d347e786f5e42Mike Lockwood unsigned int gid; 65dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} property_perms[] = { 66c5e7ef24308f5a993ecfd5ac438d347e786f5e42Mike Lockwood { "net.rmnet0.", AID_RADIO, 0 }, 67c5e7ef24308f5a993ecfd5ac438d347e786f5e42Mike Lockwood { "net.gprs.", AID_RADIO, 0 }, 68c5e7ef24308f5a993ecfd5ac438d347e786f5e42Mike Lockwood { "net.ppp", AID_RADIO, 0 }, 69cf01597121c1c08780966f22e2a62386d0e1a08fAmol Bhatkar { "net.qmi", AID_RADIO, 0 }, 707100f640deabb9e746e41eac54707f1ca531f2dbBenoit Goby { "net.lte", AID_RADIO, 0 }, 7122bfc4cca03197036c3b49e7c2cf47a0a23fce87Benoit Goby { "net.cdma", AID_RADIO, 0 }, 72c5e7ef24308f5a993ecfd5ac438d347e786f5e42Mike Lockwood { "ril.", AID_RADIO, 0 }, 73c5e7ef24308f5a993ecfd5ac438d347e786f5e42Mike Lockwood { "gsm.", AID_RADIO, 0 }, 74c5e7ef24308f5a993ecfd5ac438d347e786f5e42Mike Lockwood { "persist.radio", AID_RADIO, 0 }, 75c5e7ef24308f5a993ecfd5ac438d347e786f5e42Mike Lockwood { "net.dns", AID_RADIO, 0 }, 765da93589f106646203d6633e2e927aba01fbdb9fBenoit Goby { "sys.usb.config", AID_RADIO, 0 }, 77c5e7ef24308f5a993ecfd5ac438d347e786f5e42Mike Lockwood { "net.", AID_SYSTEM, 0 }, 78c5e7ef24308f5a993ecfd5ac438d347e786f5e42Mike Lockwood { "dev.", AID_SYSTEM, 0 }, 79c5e7ef24308f5a993ecfd5ac438d347e786f5e42Mike Lockwood { "runtime.", AID_SYSTEM, 0 }, 80c5e7ef24308f5a993ecfd5ac438d347e786f5e42Mike Lockwood { "hw.", AID_SYSTEM, 0 }, 81c5e7ef24308f5a993ecfd5ac438d347e786f5e42Mike Lockwood { "sys.", AID_SYSTEM, 0 }, 82c5e7ef24308f5a993ecfd5ac438d347e786f5e42Mike Lockwood { "service.", AID_SYSTEM, 0 }, 83c5e7ef24308f5a993ecfd5ac438d347e786f5e42Mike Lockwood { "wlan.", AID_SYSTEM, 0 }, 84c5e7ef24308f5a993ecfd5ac438d347e786f5e42Mike Lockwood { "dhcp.", AID_SYSTEM, 0 }, 85c5e7ef24308f5a993ecfd5ac438d347e786f5e42Mike Lockwood { "dhcp.", AID_DHCP, 0 }, 8645fa13f370eb5b9215a3467a211f16b3c49f19e9Romain Guy { "debug.", AID_SYSTEM, 0 }, 87c5e7ef24308f5a993ecfd5ac438d347e786f5e42Mike Lockwood { "debug.", AID_SHELL, 0 }, 88c5e7ef24308f5a993ecfd5ac438d347e786f5e42Mike Lockwood { "log.", AID_SHELL, 0 }, 89c5e7ef24308f5a993ecfd5ac438d347e786f5e42Mike Lockwood { "service.adb.root", AID_SHELL, 0 }, 9058aa5b0ee0ec67d4e0f3b12e27cd58279bef0deeMike Lockwood { "service.adb.tcp.port", AID_SHELL, 0 }, 91c5e7ef24308f5a993ecfd5ac438d347e786f5e42Mike Lockwood { "persist.sys.", AID_SYSTEM, 0 }, 92c5e7ef24308f5a993ecfd5ac438d347e786f5e42Mike Lockwood { "persist.service.", AID_SYSTEM, 0 }, 93ef4e21520cef69aaa7b488a3f44b2490dc2e3eb5Oscar Montemayor { "persist.security.", AID_SYSTEM, 0 }, 94ae6f3d7c05070f7e0e56fe0056c8923c6ee2f473Stephen Smalley { "selinux." , AID_SYSTEM, 0 }, 95c5e7ef24308f5a993ecfd5ac438d347e786f5e42Mike Lockwood { NULL, 0, 0 } 96dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project}; 97dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 98dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 99dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * White list of UID that are allowed to start/stop services. 100dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Currently there are no user apps that require. 101dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 102dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstruct { 103dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project const char *service; 104dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project unsigned int uid; 105c5e7ef24308f5a993ecfd5ac438d347e786f5e42Mike Lockwood unsigned int gid; 106dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} control_perms[] = { 107c5e7ef24308f5a993ecfd5ac438d347e786f5e42Mike Lockwood { "dumpstate",AID_SHELL, AID_LOG }, 108cfa0d8439384a1aaa53d31fb720c234cabf796eeWink Saville { "ril-daemon",AID_RADIO, AID_RADIO }, 109c5e7ef24308f5a993ecfd5ac438d347e786f5e42Mike Lockwood {NULL, 0, 0 } 110dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project}; 111dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 112dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projecttypedef struct { 113dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project void *data; 114dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project size_t size; 115dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int fd; 116dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} workspace; 117dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 118dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic int init_workspace(workspace *w, size_t size) 119dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 120dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project void *data; 121dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int fd; 122dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 12325b15be9120bcdaa0aba622c67ad2c835d9e91caBrian Swetland /* dev is a tmpfs that we can use to carve a shared workspace 12425b15be9120bcdaa0aba622c67ad2c835d9e91caBrian Swetland * out of, so let's do that... 12525b15be9120bcdaa0aba622c67ad2c835d9e91caBrian Swetland */ 12625b15be9120bcdaa0aba622c67ad2c835d9e91caBrian Swetland fd = open("/dev/__properties__", O_RDWR | O_CREAT, 0600); 12725b15be9120bcdaa0aba622c67ad2c835d9e91caBrian Swetland if (fd < 0) 128dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return -1; 129dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 13025b15be9120bcdaa0aba622c67ad2c835d9e91caBrian Swetland if (ftruncate(fd, size) < 0) 13125b15be9120bcdaa0aba622c67ad2c835d9e91caBrian Swetland goto out; 13225b15be9120bcdaa0aba622c67ad2c835d9e91caBrian Swetland 133dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project data = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0); 134dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if(data == MAP_FAILED) 135dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project goto out; 136dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 13725b15be9120bcdaa0aba622c67ad2c835d9e91caBrian Swetland close(fd); 13825b15be9120bcdaa0aba622c67ad2c835d9e91caBrian Swetland 13925b15be9120bcdaa0aba622c67ad2c835d9e91caBrian Swetland fd = open("/dev/__properties__", O_RDONLY); 14025b15be9120bcdaa0aba622c67ad2c835d9e91caBrian Swetland if (fd < 0) 14125b15be9120bcdaa0aba622c67ad2c835d9e91caBrian Swetland return -1; 14225b15be9120bcdaa0aba622c67ad2c835d9e91caBrian Swetland 14325b15be9120bcdaa0aba622c67ad2c835d9e91caBrian Swetland unlink("/dev/__properties__"); 144dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 145dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project w->data = data; 146dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project w->size = size; 147dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project w->fd = fd; 148dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return 0; 149dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 150dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectout: 151dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project close(fd); 152dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return -1; 153dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 154dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 155dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* (8 header words + 247 toc words) = 1020 bytes */ 156dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 1024 bytes header and toc + 247 prop_infos @ 128 bytes = 32640 bytes */ 157dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 158dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#define PA_COUNT_MAX 247 159dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#define PA_INFO_START 1024 160dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#define PA_SIZE 32768 161dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 162dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic workspace pa_workspace; 163dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic prop_info *pa_info_array; 164dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 165dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectextern prop_area *__system_property_area__; 166dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 167dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic int init_property_area(void) 168dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 169dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project prop_area *pa; 170dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 171dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if(pa_info_array) 172dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return -1; 173dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 174dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if(init_workspace(&pa_workspace, PA_SIZE)) 175dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return -1; 176dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 177dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project fcntl(pa_workspace.fd, F_SETFD, FD_CLOEXEC); 178dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 179dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project pa_info_array = (void*) (((char*) pa_workspace.data) + PA_INFO_START); 180dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 181dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project pa = pa_workspace.data; 182dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project memset(pa, 0, PA_SIZE); 183dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project pa->magic = PROP_AREA_MAGIC; 184dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project pa->version = PROP_AREA_VERSION; 185dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 186dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* plug into the lib property services */ 187dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project __system_property_area__ = pa; 1883294bbbad9494eb4ca534624b96e39f8ed15aaf2Colin Cross property_area_inited = 1; 189dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return 0; 190dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 191dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 192dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic void update_prop_info(prop_info *pi, const char *value, unsigned len) 193dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 194dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project pi->serial = pi->serial | 1; 195dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project memcpy(pi->value, value, len + 1); 196dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project pi->serial = (len << 24) | ((pi->serial + 1) & 0xffffff); 197dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project __futex_wake(&pi->serial, INT32_MAX); 198dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 199dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 20063207cd20f2156bec937a85e789f07de0d1afa9drpcraigstatic int check_mac_perms(const char *name, char *sctx) 20163207cd20f2156bec937a85e789f07de0d1afa9drpcraig{ 20263207cd20f2156bec937a85e789f07de0d1afa9drpcraig#ifdef HAVE_SELINUX 20363207cd20f2156bec937a85e789f07de0d1afa9drpcraig if (is_selinux_enabled() <= 0) 20463207cd20f2156bec937a85e789f07de0d1afa9drpcraig return 1; 20563207cd20f2156bec937a85e789f07de0d1afa9drpcraig 20663207cd20f2156bec937a85e789f07de0d1afa9drpcraig char *tctx = NULL; 20763207cd20f2156bec937a85e789f07de0d1afa9drpcraig const char *class = "property_service"; 20863207cd20f2156bec937a85e789f07de0d1afa9drpcraig const char *perm = "set"; 20963207cd20f2156bec937a85e789f07de0d1afa9drpcraig int result = 0; 21063207cd20f2156bec937a85e789f07de0d1afa9drpcraig 21163207cd20f2156bec937a85e789f07de0d1afa9drpcraig if (!sctx) 21263207cd20f2156bec937a85e789f07de0d1afa9drpcraig goto err; 21363207cd20f2156bec937a85e789f07de0d1afa9drpcraig 21463207cd20f2156bec937a85e789f07de0d1afa9drpcraig if (!sehandle_prop) 21563207cd20f2156bec937a85e789f07de0d1afa9drpcraig goto err; 21663207cd20f2156bec937a85e789f07de0d1afa9drpcraig 21763207cd20f2156bec937a85e789f07de0d1afa9drpcraig if (selabel_lookup(sehandle_prop, &tctx, name, 1) != 0) 21863207cd20f2156bec937a85e789f07de0d1afa9drpcraig goto err; 21963207cd20f2156bec937a85e789f07de0d1afa9drpcraig 22063207cd20f2156bec937a85e789f07de0d1afa9drpcraig if (selinux_check_access(sctx, tctx, class, perm, name) == 0) 22163207cd20f2156bec937a85e789f07de0d1afa9drpcraig result = 1; 22263207cd20f2156bec937a85e789f07de0d1afa9drpcraig 22363207cd20f2156bec937a85e789f07de0d1afa9drpcraig freecon(tctx); 22463207cd20f2156bec937a85e789f07de0d1afa9drpcraig err: 22563207cd20f2156bec937a85e789f07de0d1afa9drpcraig return result; 22663207cd20f2156bec937a85e789f07de0d1afa9drpcraig 22763207cd20f2156bec937a85e789f07de0d1afa9drpcraig#endif 22863207cd20f2156bec937a85e789f07de0d1afa9drpcraig return 1; 22963207cd20f2156bec937a85e789f07de0d1afa9drpcraig} 23063207cd20f2156bec937a85e789f07de0d1afa9drpcraig 23163207cd20f2156bec937a85e789f07de0d1afa9drpcraigstatic int check_control_mac_perms(const char *name, char *sctx) 23263207cd20f2156bec937a85e789f07de0d1afa9drpcraig{ 23363207cd20f2156bec937a85e789f07de0d1afa9drpcraig#ifdef HAVE_SELINUX 23463207cd20f2156bec937a85e789f07de0d1afa9drpcraig 23563207cd20f2156bec937a85e789f07de0d1afa9drpcraig /* 23663207cd20f2156bec937a85e789f07de0d1afa9drpcraig * Create a name prefix out of ctl.<service name> 23763207cd20f2156bec937a85e789f07de0d1afa9drpcraig * The new prefix allows the use of the existing 23863207cd20f2156bec937a85e789f07de0d1afa9drpcraig * property service backend labeling while avoiding 23963207cd20f2156bec937a85e789f07de0d1afa9drpcraig * mislabels based on true property prefixes. 24063207cd20f2156bec937a85e789f07de0d1afa9drpcraig */ 24163207cd20f2156bec937a85e789f07de0d1afa9drpcraig char ctl_name[PROP_VALUE_MAX+4]; 24263207cd20f2156bec937a85e789f07de0d1afa9drpcraig int ret = snprintf(ctl_name, sizeof(ctl_name), "ctl.%s", name); 24363207cd20f2156bec937a85e789f07de0d1afa9drpcraig 24463207cd20f2156bec937a85e789f07de0d1afa9drpcraig if (ret < 0 || (size_t) ret >= sizeof(ctl_name)) 24563207cd20f2156bec937a85e789f07de0d1afa9drpcraig return 0; 24663207cd20f2156bec937a85e789f07de0d1afa9drpcraig 24763207cd20f2156bec937a85e789f07de0d1afa9drpcraig return check_mac_perms(ctl_name, sctx); 24863207cd20f2156bec937a85e789f07de0d1afa9drpcraig 24963207cd20f2156bec937a85e789f07de0d1afa9drpcraig#endif 25063207cd20f2156bec937a85e789f07de0d1afa9drpcraig return 1; 25163207cd20f2156bec937a85e789f07de0d1afa9drpcraig} 25263207cd20f2156bec937a85e789f07de0d1afa9drpcraig 253dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 254dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Checks permissions for starting/stoping system services. 255dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * AID_SYSTEM and AID_ROOT are always allowed. 256dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * 257dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Returns 1 if uid allowed, 0 otherwise. 258dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 25963207cd20f2156bec937a85e789f07de0d1afa9drpcraigstatic int check_control_perms(const char *name, unsigned int uid, unsigned int gid, char *sctx) { 26063207cd20f2156bec937a85e789f07de0d1afa9drpcraig 261dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int i; 262dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (uid == AID_SYSTEM || uid == AID_ROOT) 26363207cd20f2156bec937a85e789f07de0d1afa9drpcraig return check_control_mac_perms(name, sctx); 264dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 265dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* Search the ACL */ 266dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project for (i = 0; control_perms[i].service; i++) { 267dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (strcmp(control_perms[i].service, name) == 0) { 268c5e7ef24308f5a993ecfd5ac438d347e786f5e42Mike Lockwood if ((uid && control_perms[i].uid == uid) || 269c5e7ef24308f5a993ecfd5ac438d347e786f5e42Mike Lockwood (gid && control_perms[i].gid == gid)) { 27063207cd20f2156bec937a85e789f07de0d1afa9drpcraig return check_control_mac_perms(name, sctx); 271c5e7ef24308f5a993ecfd5ac438d347e786f5e42Mike Lockwood } 272dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 273dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 274dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return 0; 275dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 276dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 277dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project/* 278dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Checks permissions for setting system properties. 279dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Returns 1 if uid allowed, 0 otherwise. 280dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 28163207cd20f2156bec937a85e789f07de0d1afa9drpcraigstatic int check_perms(const char *name, unsigned int uid, unsigned int gid, char *sctx) 282dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 283dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int i; 284dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if(!strncmp(name, "ro.", 3)) 285dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project name +=3; 286dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 28763207cd20f2156bec937a85e789f07de0d1afa9drpcraig if (uid == 0) 28863207cd20f2156bec937a85e789f07de0d1afa9drpcraig return check_mac_perms(name, sctx); 28963207cd20f2156bec937a85e789f07de0d1afa9drpcraig 290dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project for (i = 0; property_perms[i].prefix; i++) { 291dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (strncmp(property_perms[i].prefix, name, 292dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project strlen(property_perms[i].prefix)) == 0) { 293c5e7ef24308f5a993ecfd5ac438d347e786f5e42Mike Lockwood if ((uid && property_perms[i].uid == uid) || 294c5e7ef24308f5a993ecfd5ac438d347e786f5e42Mike Lockwood (gid && property_perms[i].gid == gid)) { 29563207cd20f2156bec937a85e789f07de0d1afa9drpcraig 29663207cd20f2156bec937a85e789f07de0d1afa9drpcraig return check_mac_perms(name, sctx); 297dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 298dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 299dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 300dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 301dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return 0; 302dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 303dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 304dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectconst char* property_get(const char *name) 305dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 306dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project prop_info *pi; 307dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 308dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if(strlen(name) >= PROP_NAME_MAX) return 0; 309dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 310dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project pi = (prop_info*) __system_property_find(name); 311dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 312dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if(pi != 0) { 313dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return pi->value; 314dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } else { 315dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return 0; 316dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 317dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 318dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 3193dfe6c66646865a78449a435239145deeaeab3baTammo Spalinkstatic void write_persistent_property(const char *name, const char *value) 320dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 321dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project const char *tempPath = PERSISTENT_PROPERTY_DIR "/.temp"; 322dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char path[PATH_MAX]; 323dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int fd, length; 324dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 325dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project snprintf(path, sizeof(path), "%s/%s", PERSISTENT_PROPERTY_DIR, name); 326dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 327dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project fd = open(tempPath, O_WRONLY|O_CREAT|O_TRUNC, 0600); 328dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (fd < 0) { 329dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ERROR("Unable to write persistent property to temp file %s errno: %d\n", tempPath, errno); 3303dfe6c66646865a78449a435239145deeaeab3baTammo Spalink return; 331dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 332dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project write(fd, value, strlen(value)); 333dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project close(fd); 334dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 335dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (rename(tempPath, path)) { 336dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project unlink(tempPath); 337dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ERROR("Unable to rename persistent property file %s to %s\n", tempPath, path); 338dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 339dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 340dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 341dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectint property_set(const char *name, const char *value) 342dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 343dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project prop_area *pa; 344dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project prop_info *pi; 345dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 346dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int namelen = strlen(name); 347dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int valuelen = strlen(value); 348dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 349dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if(namelen >= PROP_NAME_MAX) return -1; 350dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if(valuelen >= PROP_VALUE_MAX) return -1; 351dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if(namelen < 1) return -1; 352dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 353dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project pi = (prop_info*) __system_property_find(name); 354dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 355dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if(pi != 0) { 356dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* ro.* properties may NEVER be modified once set */ 357dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if(!strncmp(name, "ro.", 3)) return -1; 358dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 359dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project pa = __system_property_area__; 360dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project update_prop_info(pi, value, valuelen); 361dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project pa->serial++; 362dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project __futex_wake(&pa->serial, INT32_MAX); 363dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } else { 364dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project pa = __system_property_area__; 365dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if(pa->count == PA_COUNT_MAX) return -1; 366dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 367dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project pi = pa_info_array + pa->count; 368dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project pi->serial = (valuelen << 24); 369dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project memcpy(pi->name, name, namelen + 1); 370dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project memcpy(pi->value, value, valuelen + 1); 371dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 372dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project pa->toc[pa->count] = 373dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project (namelen << 24) | (((unsigned) pi) - ((unsigned) pa)); 374dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 375dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project pa->count++; 376dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project pa->serial++; 377dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project __futex_wake(&pa->serial, INT32_MAX); 378dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 379dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* If name starts with "net." treat as a DNS property. */ 380b3779558dcfbe99f0b9c1ef796e3728edad25672Mike Lockwood if (strncmp("net.", name, strlen("net.")) == 0) { 381dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (strcmp("net.change", name) == 0) { 382dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return 0; 383dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 3843dfe6c66646865a78449a435239145deeaeab3baTammo Spalink /* 385dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * The 'net.change' property is a special property used track when any 386dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * 'net.*' property name is updated. It is _ONLY_ updated here. Its value 387dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * contains the last updated 'net.*' property. 388dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 389dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project property_set("net.change", name); 390dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } else if (persistent_properties_loaded && 391b3779558dcfbe99f0b9c1ef796e3728edad25672Mike Lockwood strncmp("persist.", name, strlen("persist.")) == 0) { 3923dfe6c66646865a78449a435239145deeaeab3baTammo Spalink /* 393dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * Don't write properties to disk until after we have read all default properties 394dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project * to prevent them from being overwritten by default values. 395dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project */ 3963dfe6c66646865a78449a435239145deeaeab3baTammo Spalink write_persistent_property(name, value); 397ae6f3d7c05070f7e0e56fe0056c8923c6ee2f473Stephen Smalley#ifdef HAVE_SELINUX 398ae6f3d7c05070f7e0e56fe0056c8923c6ee2f473Stephen Smalley } else if (strcmp("selinux.reload_policy", name) == 0 && 399ae6f3d7c05070f7e0e56fe0056c8923c6ee2f473Stephen Smalley strcmp("1", value) == 0) { 400ae6f3d7c05070f7e0e56fe0056c8923c6ee2f473Stephen Smalley selinux_reload_policy(); 401ae6f3d7c05070f7e0e56fe0056c8923c6ee2f473Stephen Smalley#endif 402dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 403dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project property_changed(name, value); 404dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return 0; 405dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 406dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 407d11beb2b1516144327c3f730f75e6b4bc65f1374Colin Crossvoid handle_property_set_fd() 408dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 409dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project prop_msg msg; 410dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int s; 411dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int r; 412dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int res; 413dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project struct ucred cr; 414dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project struct sockaddr_un addr; 415dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project socklen_t addr_size = sizeof(addr); 416dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project socklen_t cr_size = sizeof(cr); 41763207cd20f2156bec937a85e789f07de0d1afa9drpcraig char * source_ctx = NULL; 418dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 419d11beb2b1516144327c3f730f75e6b4bc65f1374Colin Cross if ((s = accept(property_set_fd, (struct sockaddr *) &addr, &addr_size)) < 0) { 420dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return; 421dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 422dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 423dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* Check socket options here */ 424dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (getsockopt(s, SOL_SOCKET, SO_PEERCRED, &cr, &cr_size) < 0) { 425dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project close(s); 426dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ERROR("Unable to recieve socket options\n"); 427dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return; 428dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 429dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 430d18678f882eed5677c28d03a86a8ab43300acd4eMike Lockwood r = TEMP_FAILURE_RETRY(recv(s, &msg, sizeof(msg), 0)); 431dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if(r != sizeof(prop_msg)) { 432d18678f882eed5677c28d03a86a8ab43300acd4eMike Lockwood ERROR("sys_prop: mis-match msg size recieved: %d expected: %d errno: %d\n", 433d18678f882eed5677c28d03a86a8ab43300acd4eMike Lockwood r, sizeof(prop_msg), errno); 4349f1e0e3ae3108086948b74ce58af32df92ff8331Brad Fitzpatrick close(s); 435dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return; 436dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 437dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 438dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project switch(msg.cmd) { 439dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project case PROP_MSG_SETPROP: 440dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project msg.name[PROP_NAME_MAX-1] = 0; 441dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project msg.value[PROP_VALUE_MAX-1] = 0; 442dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 44363207cd20f2156bec937a85e789f07de0d1afa9drpcraig#ifdef HAVE_SELINUX 44463207cd20f2156bec937a85e789f07de0d1afa9drpcraig getpeercon(s, &source_ctx); 44563207cd20f2156bec937a85e789f07de0d1afa9drpcraig#endif 44663207cd20f2156bec937a85e789f07de0d1afa9drpcraig 447dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if(memcmp(msg.name,"ctl.",4) == 0) { 44871ead1835317af5305f9ef87ce06ebdf9cff92e6Brad Fitzpatrick // Keep the old close-socket-early behavior when handling 44971ead1835317af5305f9ef87ce06ebdf9cff92e6Brad Fitzpatrick // ctl.* properties. 45071ead1835317af5305f9ef87ce06ebdf9cff92e6Brad Fitzpatrick close(s); 45163207cd20f2156bec937a85e789f07de0d1afa9drpcraig if (check_control_perms(msg.value, cr.uid, cr.gid, source_ctx)) { 452dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project handle_control_message((char*) msg.name + 4, (char*) msg.value); 453dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } else { 454cfa0d8439384a1aaa53d31fb720c234cabf796eeWink Saville ERROR("sys_prop: Unable to %s service ctl [%s] uid:%d gid:%d pid:%d\n", 455cfa0d8439384a1aaa53d31fb720c234cabf796eeWink Saville msg.name + 4, msg.value, cr.uid, cr.gid, cr.pid); 456dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 457dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } else { 45863207cd20f2156bec937a85e789f07de0d1afa9drpcraig if (check_perms(msg.name, cr.uid, cr.gid, source_ctx)) { 459dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project property_set((char*) msg.name, (char*) msg.value); 460dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } else { 461dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ERROR("sys_prop: permission denied uid:%d name:%s\n", 462dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project cr.uid, msg.name); 463dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 46471ead1835317af5305f9ef87ce06ebdf9cff92e6Brad Fitzpatrick 46571ead1835317af5305f9ef87ce06ebdf9cff92e6Brad Fitzpatrick // Note: bionic's property client code assumes that the 46671ead1835317af5305f9ef87ce06ebdf9cff92e6Brad Fitzpatrick // property server will not close the socket until *AFTER* 46771ead1835317af5305f9ef87ce06ebdf9cff92e6Brad Fitzpatrick // the property is written to memory. 46871ead1835317af5305f9ef87ce06ebdf9cff92e6Brad Fitzpatrick close(s); 469dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 47063207cd20f2156bec937a85e789f07de0d1afa9drpcraig#ifdef HAVE_SELINUX 47163207cd20f2156bec937a85e789f07de0d1afa9drpcraig freecon(source_ctx); 47263207cd20f2156bec937a85e789f07de0d1afa9drpcraig#endif 47363207cd20f2156bec937a85e789f07de0d1afa9drpcraig 474dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 475dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 476dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project default: 47771ead1835317af5305f9ef87ce06ebdf9cff92e6Brad Fitzpatrick close(s); 478dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project break; 479dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 480dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 481dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 482dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectvoid get_property_workspace(int *fd, int *sz) 483dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 484dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project *fd = pa_workspace.fd; 485dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project *sz = pa_workspace.size; 486dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 487dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 488dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic void load_properties(char *data) 489dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 490dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char *key, *value, *eol, *sol, *tmp; 491dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 492dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project sol = data; 493dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project while((eol = strchr(sol, '\n'))) { 494dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project key = sol; 495dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project *eol++ = 0; 496dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project sol = eol; 497dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 498dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project value = strchr(key, '='); 499dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if(value == 0) continue; 500dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project *value++ = 0; 501dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 502dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project while(isspace(*key)) key++; 503dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if(*key == '#') continue; 504dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project tmp = value - 2; 505dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project while((tmp > key) && isspace(*tmp)) *tmp-- = 0; 506dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 507dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project while(isspace(*value)) value++; 508dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project tmp = eol - 2; 509dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project while((tmp > value) && isspace(*tmp)) *tmp-- = 0; 510dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 511dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project property_set(key, value); 512dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 513dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 514dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 515dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic void load_properties_from_file(const char *fn) 516dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 517dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char *data; 518dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project unsigned sz; 519dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 520dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project data = read_file(fn, &sz); 521dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 522dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if(data != 0) { 523dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project load_properties(data); 524dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project free(data); 525dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 526dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 527dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 528dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic void load_persistent_properties() 529dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 530dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project DIR* dir = opendir(PERSISTENT_PROPERTY_DIR); 531dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project struct dirent* entry; 532dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char path[PATH_MAX]; 533dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project char value[PROP_VALUE_MAX]; 534dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int fd, length; 535dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 536dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (dir) { 537dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project while ((entry = readdir(dir)) != NULL) { 538b3779558dcfbe99f0b9c1ef796e3728edad25672Mike Lockwood if (strncmp("persist.", entry->d_name, strlen("persist."))) 539dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project continue; 540dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#if HAVE_DIRENT_D_TYPE 541dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (entry->d_type != DT_REG) 542dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project continue; 543dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#endif 544dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* open the file and read the property value */ 545dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project snprintf(path, sizeof(path), "%s/%s", PERSISTENT_PROPERTY_DIR, entry->d_name); 546dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project fd = open(path, O_RDONLY); 547dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (fd >= 0) { 548dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project length = read(fd, value, sizeof(value) - 1); 549dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (length >= 0) { 550dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project value[length] = 0; 551dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project property_set(entry->d_name, value); 552dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } else { 553dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ERROR("Unable to read persistent property file %s errno: %d\n", path, errno); 554dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 555dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project close(fd); 556dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } else { 557dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ERROR("Unable to open persistent property file %s errno: %d\n", path, errno); 558dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 559dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 560dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project closedir(dir); 561dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } else { 562dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project ERROR("Unable to open persistent property directory %s errno: %d\n", PERSISTENT_PROPERTY_DIR, errno); 563dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 5643dfe6c66646865a78449a435239145deeaeab3baTammo Spalink 565dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project persistent_properties_loaded = 1; 566dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 567dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 5688886112d87bcc501e89e4763656a3ebfeb58edf2Dima Zavinvoid property_init(void) 569dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 570dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project init_property_area(); 5718886112d87bcc501e89e4763656a3ebfeb58edf2Dima Zavin} 5728886112d87bcc501e89e4763656a3ebfeb58edf2Dima Zavin 5738886112d87bcc501e89e4763656a3ebfeb58edf2Dima Zavinvoid property_load_boot_defaults(void) 5748886112d87bcc501e89e4763656a3ebfeb58edf2Dima Zavin{ 5758886112d87bcc501e89e4763656a3ebfeb58edf2Dima Zavin load_properties_from_file(PROP_PATH_RAMDISK_DEFAULT); 576dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 577dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 5783294bbbad9494eb4ca534624b96e39f8ed15aaf2Colin Crossint properties_inited(void) 5793294bbbad9494eb4ca534624b96e39f8ed15aaf2Colin Cross{ 5803294bbbad9494eb4ca534624b96e39f8ed15aaf2Colin Cross return property_area_inited; 5813294bbbad9494eb4ca534624b96e39f8ed15aaf2Colin Cross} 5823294bbbad9494eb4ca534624b96e39f8ed15aaf2Colin Cross 583c5c51033c86353d1a448c72e0e9388906eed7114Ken Sumrall/* When booting an encrypted system, /data is not mounted when the 584c5c51033c86353d1a448c72e0e9388906eed7114Ken Sumrall * property service is started, so any properties stored there are 585c5c51033c86353d1a448c72e0e9388906eed7114Ken Sumrall * not loaded. Vold triggers init to load these properties once it 586c5c51033c86353d1a448c72e0e9388906eed7114Ken Sumrall * has mounted /data. 587c5c51033c86353d1a448c72e0e9388906eed7114Ken Sumrall */ 588c5c51033c86353d1a448c72e0e9388906eed7114Ken Sumrallvoid load_persist_props(void) 589c5c51033c86353d1a448c72e0e9388906eed7114Ken Sumrall{ 5900dbda7e1c5bcebc501b4943cd6483122297e1834Nick Kralevich#ifdef ALLOW_LOCAL_PROP_OVERRIDE 591c5c51033c86353d1a448c72e0e9388906eed7114Ken Sumrall load_properties_from_file(PROP_PATH_LOCAL_OVERRIDE); 5920dbda7e1c5bcebc501b4943cd6483122297e1834Nick Kralevich#endif /* ALLOW_LOCAL_PROP_OVERRIDE */ 593c5c51033c86353d1a448c72e0e9388906eed7114Ken Sumrall /* Read persistent properties after all default values have been loaded. */ 594c5c51033c86353d1a448c72e0e9388906eed7114Ken Sumrall load_persistent_properties(); 595c5c51033c86353d1a448c72e0e9388906eed7114Ken Sumrall} 596c5c51033c86353d1a448c72e0e9388906eed7114Ken Sumrall 597d11beb2b1516144327c3f730f75e6b4bc65f1374Colin Crossvoid start_property_service(void) 598dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 599dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int fd; 600dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 601dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project load_properties_from_file(PROP_PATH_SYSTEM_BUILD); 602dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project load_properties_from_file(PROP_PATH_SYSTEM_DEFAULT); 6030dbda7e1c5bcebc501b4943cd6483122297e1834Nick Kralevich#ifdef ALLOW_LOCAL_PROP_OVERRIDE 604dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project load_properties_from_file(PROP_PATH_LOCAL_OVERRIDE); 6050dbda7e1c5bcebc501b4943cd6483122297e1834Nick Kralevich#endif /* ALLOW_LOCAL_PROP_OVERRIDE */ 606dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project /* Read persistent properties after all default values have been loaded. */ 607dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project load_persistent_properties(); 608dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 609dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project fd = create_socket(PROP_SERVICE_NAME, SOCK_STREAM, 0666, 0, 0); 610d11beb2b1516144327c3f730f75e6b4bc65f1374Colin Cross if(fd < 0) return; 611dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project fcntl(fd, F_SETFD, FD_CLOEXEC); 612dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project fcntl(fd, F_SETFL, O_NONBLOCK); 613dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 614dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project listen(fd, 8); 615d11beb2b1516144327c3f730f75e6b4bc65f1374Colin Cross property_set_fd = fd; 616d11beb2b1516144327c3f730f75e6b4bc65f1374Colin Cross} 617d11beb2b1516144327c3f730f75e6b4bc65f1374Colin Cross 618d11beb2b1516144327c3f730f75e6b4bc65f1374Colin Crossint get_property_set_fd() 619d11beb2b1516144327c3f730f75e6b4bc65f1374Colin Cross{ 620d11beb2b1516144327c3f730f75e6b4bc65f1374Colin Cross return property_set_fd; 621dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 622