194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood/* 294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood** Copyright 2008, The Android Open Source Project 394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood** 494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood** Licensed under the Apache License, Version 2.0 (the "License"); 594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood** you may not use this file except in compliance with the License. 694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood** You may obtain a copy of the License at 794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood** 894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood** http://www.apache.org/licenses/LICENSE-2.0 994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood** 1094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood** Unless required by applicable law or agreed to in writing, software 1194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood** distributed under the License is distributed on an "AS IS" BASIS, 1294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood** See the License for the specific language governing permissions and 1494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood** limitations under the License. 1594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood*/ 1694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 17d747129e1e8876f5a50f47156ec50b6969a638e4Nick Kralevich#include <sys/capability.h> 18119b765a053f650b4b47256245ce836f8c403d7fElliott Hughes#include <sys/prctl.h> 19bd558d61871218f5b13df2fe4b7cc3b530ee947cStephen Smalley#include <selinux/android.h> 20bd558d61871218f5b13df2fe4b7cc3b530ee947cStephen Smalley#include <selinux/avc.h> 2194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 2294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood#include "installd.h" 2394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 2494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 2594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood#define BUFFER_MAX 1024 /* input buffer for commands */ 2694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood#define TOKEN_MAX 8 /* max number of arguments in buffer */ 2794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood#define REPLY_MAX 256 /* largest reply allowed */ 2894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 2994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwoodstatic int do_ping(char **arg, char reply[REPLY_MAX]) 3094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood{ 3194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood return 0; 3294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood} 3394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 3494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwoodstatic int do_install(char **arg, char reply[REPLY_MAX]) 3594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood{ 364d3fd4e9988c0eb284dd5104c4dea757f723c716Robert Craig return install(arg[0], atoi(arg[1]), atoi(arg[2]), arg[3]); /* pkgname, uid, gid, seinfo */ 3794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood} 3894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 3994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwoodstatic int do_dexopt(char **arg, char reply[REPLY_MAX]) 4094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood{ 41b1efac103523efccbe671e76cc0eaaeab810415bCalin Juravle /* apk_path, uid, is_public, pkgname, instruction_set, vm_safe_mode, should_relocate */ 42b1efac103523efccbe671e76cc0eaaeab810415bCalin Juravle return dexopt(arg[0], atoi(arg[1]), atoi(arg[2]), arg[3], arg[4], atoi(arg[5]), 0); 4394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood} 4494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 45b1a6c2f95a455aa2829340fcc8d233493855f4d4Narayan Kamathstatic int do_mark_boot_complete(char **arg, char reply[REPLY_MAX]) 46b1a6c2f95a455aa2829340fcc8d233493855f4d4Narayan Kamath{ 47b1a6c2f95a455aa2829340fcc8d233493855f4d4Narayan Kamath return mark_boot_complete(arg[0] /* instruction set */); 48b1a6c2f95a455aa2829340fcc8d233493855f4d4Narayan Kamath} 49b1a6c2f95a455aa2829340fcc8d233493855f4d4Narayan Kamath 5094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwoodstatic int do_move_dex(char **arg, char reply[REPLY_MAX]) 5194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood{ 521b4003207750ea8fe8c7b03eb32d80f1df83979eNarayan Kamath return move_dex(arg[0], arg[1], arg[2]); /* src, dst, instruction_set */ 5394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood} 5494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 5594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwoodstatic int do_rm_dex(char **arg, char reply[REPLY_MAX]) 5694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood{ 571b4003207750ea8fe8c7b03eb32d80f1df83979eNarayan Kamath return rm_dex(arg[0], arg[1]); /* pkgname, instruction_set */ 5894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood} 5994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 6094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwoodstatic int do_remove(char **arg, char reply[REPLY_MAX]) 6194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood{ 6294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood return uninstall(arg[0], atoi(arg[1])); /* pkgname, userid */ 6394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood} 6494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 6594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwoodstatic int do_rename(char **arg, char reply[REPLY_MAX]) 6694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood{ 6794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood return renamepkg(arg[0], arg[1]); /* oldpkgname, newpkgname */ 6894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood} 6994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 7094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwoodstatic int do_fixuid(char **arg, char reply[REPLY_MAX]) 7194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood{ 7294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood return fix_uid(arg[0], atoi(arg[1]), atoi(arg[2])); /* pkgname, uid, gid */ 7394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood} 7494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 7594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwoodstatic int do_free_cache(char **arg, char reply[REPLY_MAX]) /* TODO int:free_size */ 7694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood{ 7794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood return free_cache((int64_t)atoll(arg[0])); /* free_size */ 7894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood} 7994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 8094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwoodstatic int do_rm_cache(char **arg, char reply[REPLY_MAX]) 8194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood{ 8294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood return delete_cache(arg[0], atoi(arg[1])); /* pkgname, userid */ 8394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood} 8494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 85c796b681e52fbb792da9a5b4f30e935cc927c1d7Jeff Sharkeystatic int do_rm_code_cache(char **arg, char reply[REPLY_MAX]) 86c796b681e52fbb792da9a5b4f30e935cc927c1d7Jeff Sharkey{ 87c796b681e52fbb792da9a5b4f30e935cc927c1d7Jeff Sharkey return delete_code_cache(arg[0], atoi(arg[1])); /* pkgname, userid */ 88c796b681e52fbb792da9a5b4f30e935cc927c1d7Jeff Sharkey} 89c796b681e52fbb792da9a5b4f30e935cc927c1d7Jeff Sharkey 9094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwoodstatic int do_get_size(char **arg, char reply[REPLY_MAX]) 9194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood{ 9294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood int64_t codesize = 0; 9394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood int64_t datasize = 0; 9494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood int64_t cachesize = 0; 9594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood int64_t asecsize = 0; 9694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood int res = 0; 9794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 98abe4fe5b46157ecd2a52d28abf938c816c3ce878Jeff Sharkey /* pkgdir, userid, apkpath */ 998b41780d73930b37b6254cc1dac5607c843839c0Dianne Hackborn res = get_size(arg[0], atoi(arg[1]), arg[2], arg[3], arg[4], arg[5], 1001b4003207750ea8fe8c7b03eb32d80f1df83979eNarayan Kamath arg[6], &codesize, &datasize, &cachesize, &asecsize); 10194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 10294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood /* 10394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood * Each int64_t can take up 22 characters printed out. Make sure it 10494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood * doesn't go over REPLY_MAX in the future. 10594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood */ 10694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood snprintf(reply, REPLY_MAX, "%" PRId64 " %" PRId64 " %" PRId64 " %" PRId64, 10794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood codesize, datasize, cachesize, asecsize); 10894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood return res; 10994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood} 11094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 11194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwoodstatic int do_rm_user_data(char **arg, char reply[REPLY_MAX]) 11294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood{ 11394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood return delete_user_data(arg[0], atoi(arg[1])); /* pkgname, userid */ 11494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood} 11594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 11694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwoodstatic int do_mk_user_data(char **arg, char reply[REPLY_MAX]) 11794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood{ 118880d1a957ebcb63fb9d3724e2f91c58b7ff0cd54Robert Craig return make_user_data(arg[0], atoi(arg[1]), atoi(arg[2]), arg[3]); 119880d1a957ebcb63fb9d3724e2f91c58b7ff0cd54Robert Craig /* pkgname, uid, userid, seinfo */ 12094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood} 12194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 1227c8bec01790087748ec7afa69a31789828b751f9Robin Leestatic int do_mk_user_config(char **arg, char reply[REPLY_MAX]) 123095c763dd9aa26a206d10ab7c1d7e1c569298fb3Robin Lee{ 1247c8bec01790087748ec7afa69a31789828b751f9Robin Lee return make_user_config(atoi(arg[0])); /* userid */ 125095c763dd9aa26a206d10ab7c1d7e1c569298fb3Robin Lee} 126095c763dd9aa26a206d10ab7c1d7e1c569298fb3Robin Lee 12794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwoodstatic int do_rm_user(char **arg, char reply[REPLY_MAX]) 12894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood{ 129abe4fe5b46157ecd2a52d28abf938c816c3ce878Jeff Sharkey return delete_user(atoi(arg[0])); /* userid */ 13094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood} 13194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 13294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwoodstatic int do_movefiles(char **arg, char reply[REPLY_MAX]) 13394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood{ 13494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood return movefiles(); 13594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood} 13694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 13794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwoodstatic int do_linklib(char **arg, char reply[REPLY_MAX]) 13894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood{ 13994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood return linklib(arg[0], arg[1], atoi(arg[2])); 14094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood} 14194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 14263568b1430d741f40ca008391c854ef1cc880138MÃ¥rten Kongstadstatic int do_idmap(char **arg, char reply[REPLY_MAX]) 14363568b1430d741f40ca008391c854ef1cc880138MÃ¥rten Kongstad{ 14463568b1430d741f40ca008391c854ef1cc880138MÃ¥rten Kongstad return idmap(arg[0], arg[1], atoi(arg[2])); 14563568b1430d741f40ca008391c854ef1cc880138MÃ¥rten Kongstad} 14663568b1430d741f40ca008391c854ef1cc880138MÃ¥rten Kongstad 147da30dc7336f03ca629fe173db1425fdce989119cRobert Craigstatic int do_restorecon_data(char **arg, char reply[REPLY_MAX] __attribute__((unused))) 148e9887e46cea4a095e4219927eadbe4c57bb1a5eeRobert Craig{ 149da30dc7336f03ca629fe173db1425fdce989119cRobert Craig return restorecon_data(arg[0], arg[1], atoi(arg[2])); 150da30dc7336f03ca629fe173db1425fdce989119cRobert Craig /* pkgName, seinfo, uid*/ 151e9887e46cea4a095e4219927eadbe4c57bb1a5eeRobert Craig} 152e9887e46cea4a095e4219927eadbe4c57bb1a5eeRobert Craig 15343c5d30795faf08ab639b8d88c2eceaf2b648c93Alex Lightstatic int do_patchoat(char **arg, char reply[REPLY_MAX]) { 154b1efac103523efccbe671e76cc0eaaeab810415bCalin Juravle /* apk_path, uid, is_public, pkgname, instruction_set, vm_safe_mode, should_relocate */ 155b1efac103523efccbe671e76cc0eaaeab810415bCalin Juravle return dexopt(arg[0], atoi(arg[1]), atoi(arg[2]), arg[3], arg[4], 0, 1); 15643c5d30795faf08ab639b8d88c2eceaf2b648c93Alex Light} 15743c5d30795faf08ab639b8d88c2eceaf2b648c93Alex Light 15894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwoodstruct cmdinfo { 15994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood const char *name; 16094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood unsigned numargs; 16194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood int (*func)(char **arg, char reply[REPLY_MAX]); 16294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood}; 16394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 16494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwoodstruct cmdinfo cmds[] = { 16594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood { "ping", 0, do_ping }, 1664d3fd4e9988c0eb284dd5104c4dea757f723c716Robert Craig { "install", 4, do_install }, 167b1efac103523efccbe671e76cc0eaaeab810415bCalin Juravle { "dexopt", 6, do_dexopt }, 168b1a6c2f95a455aa2829340fcc8d233493855f4d4Narayan Kamath { "markbootcomplete", 1, do_mark_boot_complete }, 1691b4003207750ea8fe8c7b03eb32d80f1df83979eNarayan Kamath { "movedex", 3, do_move_dex }, 1701b4003207750ea8fe8c7b03eb32d80f1df83979eNarayan Kamath { "rmdex", 2, do_rm_dex }, 17194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood { "remove", 2, do_remove }, 17294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood { "rename", 2, do_rename }, 17394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood { "fixuid", 3, do_fixuid }, 17494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood { "freecache", 1, do_free_cache }, 17594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood { "rmcache", 2, do_rm_cache }, 176c796b681e52fbb792da9a5b4f30e935cc927c1d7Jeff Sharkey { "rmcodecache", 2, do_rm_code_cache }, 1771b4003207750ea8fe8c7b03eb32d80f1df83979eNarayan Kamath { "getsize", 7, do_get_size }, 17894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood { "rmuserdata", 2, do_rm_user_data }, 17994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood { "movefiles", 0, do_movefiles }, 18094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood { "linklib", 3, do_linklib }, 181880d1a957ebcb63fb9d3724e2f91c58b7ff0cd54Robert Craig { "mkuserdata", 4, do_mk_user_data }, 1827c8bec01790087748ec7afa69a31789828b751f9Robin Lee { "mkuserconfig", 1, do_mk_user_config }, 18394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood { "rmuser", 1, do_rm_user }, 18463568b1430d741f40ca008391c854ef1cc880138MÃ¥rten Kongstad { "idmap", 3, do_idmap }, 185da30dc7336f03ca629fe173db1425fdce989119cRobert Craig { "restorecondata", 3, do_restorecon_data }, 18643c5d30795faf08ab639b8d88c2eceaf2b648c93Alex Light { "patchoat", 5, do_patchoat }, 18794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood}; 18894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 18994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwoodstatic int readx(int s, void *_buf, int count) 19094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood{ 19194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood char *buf = _buf; 19294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood int n = 0, r; 19394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (count < 0) return -1; 19494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood while (n < count) { 19594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood r = read(s, buf + n, count - n); 19694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (r < 0) { 19794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (errno == EINTR) continue; 19894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood ALOGE("read error: %s\n", strerror(errno)); 19994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood return -1; 20094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 20194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (r == 0) { 20294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood ALOGE("eof\n"); 20394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood return -1; /* EOF */ 20494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 20594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood n += r; 20694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 20794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood return 0; 20894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood} 20994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 21094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwoodstatic int writex(int s, const void *_buf, int count) 21194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood{ 21294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood const char *buf = _buf; 21394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood int n = 0, r; 21494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (count < 0) return -1; 21594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood while (n < count) { 21694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood r = write(s, buf + n, count - n); 21794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (r < 0) { 21894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (errno == EINTR) continue; 21994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood ALOGE("write error: %s\n", strerror(errno)); 22094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood return -1; 22194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 22294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood n += r; 22394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 22494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood return 0; 22594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood} 22694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 22794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 22894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood/* Tokenize the command buffer, locate a matching command, 22994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood * ensure that the required number of arguments are provided, 23094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood * call the function(), return the result. 23194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood */ 23294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwoodstatic int execute(int s, char cmd[BUFFER_MAX]) 23394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood{ 23494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood char reply[REPLY_MAX]; 23594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood char *arg[TOKEN_MAX+1]; 23694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood unsigned i; 23794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood unsigned n = 0; 23894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood unsigned short count; 23994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood int ret = -1; 24094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 2411705fc44fb85c4232637f9f7189c3bdca98a63d5Brian Carlstrom // ALOGI("execute('%s')\n", cmd); 24294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 24394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood /* default reply is "" */ 24494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood reply[0] = 0; 24594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 24694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood /* n is number of args (not counting arg[0]) */ 24794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood arg[0] = cmd; 24894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood while (*cmd) { 24994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (isspace(*cmd)) { 25094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood *cmd++ = 0; 25194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood n++; 25294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood arg[n] = cmd; 25394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (n == TOKEN_MAX) { 25494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood ALOGE("too many arguments\n"); 25594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood goto done; 25694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 25794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 25894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood cmd++; 25994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 26094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 26194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood for (i = 0; i < sizeof(cmds) / sizeof(cmds[0]); i++) { 26294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (!strcmp(cmds[i].name,arg[0])) { 26394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (n != cmds[i].numargs) { 26494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood ALOGE("%s requires %d arguments (%d given)\n", 26594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood cmds[i].name, cmds[i].numargs, n); 26694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } else { 26794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood ret = cmds[i].func(arg + 1, reply); 26894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 26994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood goto done; 27094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 27194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 27294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood ALOGE("unsupported command '%s'\n", arg[0]); 27394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 27494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwooddone: 27594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (reply[0]) { 27694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood n = snprintf(cmd, BUFFER_MAX, "%d %s", ret, reply); 27794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } else { 27894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood n = snprintf(cmd, BUFFER_MAX, "%d", ret); 27994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 28094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (n > BUFFER_MAX) n = BUFFER_MAX; 28194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood count = n; 28294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 2831705fc44fb85c4232637f9f7189c3bdca98a63d5Brian Carlstrom // ALOGI("reply: '%s'\n", cmd); 28494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (writex(s, &count, sizeof(count))) return -1; 28594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (writex(s, cmd, count)) return -1; 28694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood return 0; 28794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood} 28894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 28994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood/** 29094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood * Initialize all the global variables that are used elsewhere. Returns 0 upon 29194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood * success and -1 on error. 29294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood */ 29394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwoodvoid free_globals() { 29494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood size_t i; 29594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 29694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood for (i = 0; i < android_system_dirs.count; i++) { 29794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (android_system_dirs.dirs[i].path != NULL) { 29894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood free(android_system_dirs.dirs[i].path); 29994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 30094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 30194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 30294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood free(android_system_dirs.dirs); 30394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood} 30494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 30594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwoodint initialize_globals() { 30694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // Get the android data directory. 30794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (get_path_from_env(&android_data_dir, "ANDROID_DATA") < 0) { 30894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood return -1; 30994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 31094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 31194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // Get the android app directory. 31294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (copy_and_append(&android_app_dir, &android_data_dir, APP_SUBDIR) < 0) { 31394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood return -1; 31494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 31594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 31694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // Get the android protected app directory. 31794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (copy_and_append(&android_app_private_dir, &android_data_dir, PRIVATE_APP_SUBDIR) < 0) { 31894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood return -1; 31994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 32094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 32194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // Get the android app native library directory. 32294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (copy_and_append(&android_app_lib_dir, &android_data_dir, APP_LIB_SUBDIR) < 0) { 32394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood return -1; 32494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 32594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 32694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // Get the sd-card ASEC mount point. 32794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (get_path_from_env(&android_asec_dir, "ASEC_MOUNTPOINT") < 0) { 32894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood return -1; 32994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 33094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 33194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // Get the android media directory. 33294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (copy_and_append(&android_media_dir, &android_data_dir, MEDIA_SUBDIR) < 0) { 33394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood return -1; 33494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 33594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 33694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // Take note of the system and vendor directories. 337770180a4dd86f8bda6af2e6db4676e99a5bb1548Jeff Sharkey android_system_dirs.count = 4; 33894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 33994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood android_system_dirs.dirs = calloc(android_system_dirs.count, sizeof(dir_rec_t)); 34094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (android_system_dirs.dirs == NULL) { 34194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood ALOGE("Couldn't allocate array for dirs; aborting\n"); 34294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood return -1; 34394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 34494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 345770180a4dd86f8bda6af2e6db4676e99a5bb1548Jeff Sharkey dir_rec_t android_root_dir; 346770180a4dd86f8bda6af2e6db4676e99a5bb1548Jeff Sharkey if (get_path_from_env(&android_root_dir, "ANDROID_ROOT") < 0) { 347770180a4dd86f8bda6af2e6db4676e99a5bb1548Jeff Sharkey ALOGE("Missing ANDROID_ROOT; aborting\n"); 34894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood return -1; 34994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 35094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 351770180a4dd86f8bda6af2e6db4676e99a5bb1548Jeff Sharkey android_system_dirs.dirs[0].path = build_string2(android_root_dir.path, APP_SUBDIR); 352770180a4dd86f8bda6af2e6db4676e99a5bb1548Jeff Sharkey android_system_dirs.dirs[0].len = strlen(android_system_dirs.dirs[0].path); 35394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 354770180a4dd86f8bda6af2e6db4676e99a5bb1548Jeff Sharkey android_system_dirs.dirs[1].path = build_string2(android_root_dir.path, PRIV_APP_SUBDIR); 35594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood android_system_dirs.dirs[1].len = strlen(android_system_dirs.dirs[1].path); 35694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 357770180a4dd86f8bda6af2e6db4676e99a5bb1548Jeff Sharkey android_system_dirs.dirs[2].path = "/vendor/app/"; 358770180a4dd86f8bda6af2e6db4676e99a5bb1548Jeff Sharkey android_system_dirs.dirs[2].len = strlen(android_system_dirs.dirs[2].path); 359770180a4dd86f8bda6af2e6db4676e99a5bb1548Jeff Sharkey 360770180a4dd86f8bda6af2e6db4676e99a5bb1548Jeff Sharkey android_system_dirs.dirs[3].path = "/oem/app/"; 361770180a4dd86f8bda6af2e6db4676e99a5bb1548Jeff Sharkey android_system_dirs.dirs[3].len = strlen(android_system_dirs.dirs[3].path); 362770180a4dd86f8bda6af2e6db4676e99a5bb1548Jeff Sharkey 36394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood return 0; 36494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood} 36594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 36694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwoodint initialize_directories() { 36794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood int res = -1; 36894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 36994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // Read current filesystem layout version to handle upgrade paths 37094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood char version_path[PATH_MAX]; 37194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood snprintf(version_path, PATH_MAX, "%s.layout_version", android_data_dir.path); 37294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 37394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood int oldVersion; 37494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (fs_read_atomic_int(version_path, &oldVersion) == -1) { 37594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood oldVersion = 0; 37694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 37794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood int version = oldVersion; 37894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 37994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // /data/user 38094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood char *user_data_dir = build_string2(android_data_dir.path, SECONDARY_USER_PREFIX); 38194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // /data/data 38294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood char *legacy_data_dir = build_string2(android_data_dir.path, PRIMARY_USER_PREFIX); 38394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // /data/user/0 38494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood char *primary_data_dir = build_string3(android_data_dir.path, SECONDARY_USER_PREFIX, "0"); 38594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (!user_data_dir || !legacy_data_dir || !primary_data_dir) { 38694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood goto fail; 38794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 38894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 38994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // Make the /data/user directory if necessary 39094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (access(user_data_dir, R_OK) < 0) { 39194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (mkdir(user_data_dir, 0711) < 0) { 39294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood goto fail; 39394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 39494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (chown(user_data_dir, AID_SYSTEM, AID_SYSTEM) < 0) { 39594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood goto fail; 39694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 39794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (chmod(user_data_dir, 0711) < 0) { 39894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood goto fail; 39994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 40094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 40194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // Make the /data/user/0 symlink to /data/data if necessary 40294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (access(primary_data_dir, R_OK) < 0) { 40394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (symlink(legacy_data_dir, primary_data_dir)) { 40494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood goto fail; 40594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 40694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 40794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 40894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (version == 0) { 40994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // Introducing multi-user, so migrate /data/media contents into /data/media/0 41094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood ALOGD("Upgrading /data/media for multi-user"); 41194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 41294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // Ensure /data/media 41394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (fs_prepare_dir(android_media_dir.path, 0770, AID_MEDIA_RW, AID_MEDIA_RW) == -1) { 41494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood goto fail; 41594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 41694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 41794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // /data/media.tmp 41894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood char media_tmp_dir[PATH_MAX]; 41994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood snprintf(media_tmp_dir, PATH_MAX, "%smedia.tmp", android_data_dir.path); 42094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 42194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // Only copy when upgrade not already in progress 42294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (access(media_tmp_dir, F_OK) == -1) { 42394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (rename(android_media_dir.path, media_tmp_dir) == -1) { 42494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood ALOGE("Failed to move legacy media path: %s", strerror(errno)); 42594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood goto fail; 42694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 42794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 42894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 42994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // Create /data/media again 43094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (fs_prepare_dir(android_media_dir.path, 0770, AID_MEDIA_RW, AID_MEDIA_RW) == -1) { 43194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood goto fail; 43294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 43394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 43426288202e7bdf2e897a11bf31a15685d7c20945fStephen Smalley if (selinux_android_restorecon(android_media_dir.path, 0)) { 43547a351834f202386b01a27d42ec41ceb1f17b754Stephen Smalley goto fail; 43647a351834f202386b01a27d42ec41ceb1f17b754Stephen Smalley } 43747a351834f202386b01a27d42ec41ceb1f17b754Stephen Smalley 43894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // /data/media/0 43994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood char owner_media_dir[PATH_MAX]; 44094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood snprintf(owner_media_dir, PATH_MAX, "%s0", android_media_dir.path); 44194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 44294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // Move any owner data into place 44394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (access(media_tmp_dir, F_OK) == 0) { 44494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (rename(media_tmp_dir, owner_media_dir) == -1) { 44594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood ALOGE("Failed to move owner media path: %s", strerror(errno)); 44694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood goto fail; 44794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 44894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 44994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 45094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // Ensure media directories for any existing users 45194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood DIR *dir; 45294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood struct dirent *dirent; 45394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood char user_media_dir[PATH_MAX]; 45494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 45594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood dir = opendir(user_data_dir); 45694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (dir != NULL) { 45794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood while ((dirent = readdir(dir))) { 45894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (dirent->d_type == DT_DIR) { 45994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood const char *name = dirent->d_name; 46094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 46194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // skip "." and ".." 46294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (name[0] == '.') { 46394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (name[1] == 0) continue; 46494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if ((name[1] == '.') && (name[2] == 0)) continue; 46594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 46694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 46794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // /data/media/<user_id> 46894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood snprintf(user_media_dir, PATH_MAX, "%s%s", android_media_dir.path, name); 46994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (fs_prepare_dir(user_media_dir, 0770, AID_MEDIA_RW, AID_MEDIA_RW) == -1) { 47094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood goto fail; 47194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 47294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 47394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 47494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood closedir(dir); 47594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 47694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 47794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood version = 1; 47894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 47994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 48094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // /data/media/obb 48194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood char media_obb_dir[PATH_MAX]; 48294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood snprintf(media_obb_dir, PATH_MAX, "%sobb", android_media_dir.path); 48394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 48494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (version == 1) { 48594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // Introducing /data/media/obb for sharing OBB across users; migrate 48694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // any existing OBB files from owner. 48794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood ALOGD("Upgrading to shared /data/media/obb"); 48894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 48994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // /data/media/0/Android/obb 49094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood char owner_obb_path[PATH_MAX]; 49194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood snprintf(owner_obb_path, PATH_MAX, "%s0/Android/obb", android_media_dir.path); 49294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 49394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // Only move if target doesn't already exist 49494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (access(media_obb_dir, F_OK) != 0 && access(owner_obb_path, F_OK) == 0) { 49594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (rename(owner_obb_path, media_obb_dir) == -1) { 49694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood ALOGE("Failed to move OBB from owner: %s", strerror(errno)); 49794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood goto fail; 49894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 49994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 50094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 50194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood version = 2; 50294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 50394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 50494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (ensure_media_user_dirs(0) == -1) { 50594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood ALOGE("Failed to setup media for user 0"); 50694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood goto fail; 50794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 50894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (fs_prepare_dir(media_obb_dir, 0770, AID_MEDIA_RW, AID_MEDIA_RW) == -1) { 50994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood goto fail; 51094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 51194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 51207053fcb61436221fac2281394e98ec9d0feab3dRobin Lee if (ensure_config_user_dirs(0) == -1) { 51307053fcb61436221fac2281394e98ec9d0feab3dRobin Lee ALOGE("Failed to setup misc for user 0"); 51407053fcb61436221fac2281394e98ec9d0feab3dRobin Lee goto fail; 51507053fcb61436221fac2281394e98ec9d0feab3dRobin Lee } 51607053fcb61436221fac2281394e98ec9d0feab3dRobin Lee 517095c763dd9aa26a206d10ab7c1d7e1c569298fb3Robin Lee if (version == 2) { 518095c763dd9aa26a206d10ab7c1d7e1c569298fb3Robin Lee ALOGD("Upgrading to /data/misc/user directories"); 519095c763dd9aa26a206d10ab7c1d7e1c569298fb3Robin Lee 52060fd3feecab4336d964ca8e31c7c3220e1afb558Robin Lee char misc_dir[PATH_MAX]; 52160fd3feecab4336d964ca8e31c7c3220e1afb558Robin Lee snprintf(misc_dir, PATH_MAX, "%smisc", android_data_dir.path); 52260fd3feecab4336d964ca8e31c7c3220e1afb558Robin Lee 52360fd3feecab4336d964ca8e31c7c3220e1afb558Robin Lee char keychain_added_dir[PATH_MAX]; 52460fd3feecab4336d964ca8e31c7c3220e1afb558Robin Lee snprintf(keychain_added_dir, PATH_MAX, "%s/keychain/cacerts-added", misc_dir); 52560fd3feecab4336d964ca8e31c7c3220e1afb558Robin Lee 52660fd3feecab4336d964ca8e31c7c3220e1afb558Robin Lee char keychain_removed_dir[PATH_MAX]; 52760fd3feecab4336d964ca8e31c7c3220e1afb558Robin Lee snprintf(keychain_removed_dir, PATH_MAX, "%s/keychain/cacerts-removed", misc_dir); 52860fd3feecab4336d964ca8e31c7c3220e1afb558Robin Lee 529095c763dd9aa26a206d10ab7c1d7e1c569298fb3Robin Lee DIR *dir; 530095c763dd9aa26a206d10ab7c1d7e1c569298fb3Robin Lee struct dirent *dirent; 531095c763dd9aa26a206d10ab7c1d7e1c569298fb3Robin Lee dir = opendir(user_data_dir); 532095c763dd9aa26a206d10ab7c1d7e1c569298fb3Robin Lee if (dir != NULL) { 533095c763dd9aa26a206d10ab7c1d7e1c569298fb3Robin Lee while ((dirent = readdir(dir))) { 53460fd3feecab4336d964ca8e31c7c3220e1afb558Robin Lee const char *name = dirent->d_name; 535095c763dd9aa26a206d10ab7c1d7e1c569298fb3Robin Lee 53660fd3feecab4336d964ca8e31c7c3220e1afb558Robin Lee // skip "." and ".." 53760fd3feecab4336d964ca8e31c7c3220e1afb558Robin Lee if (name[0] == '.') { 53860fd3feecab4336d964ca8e31c7c3220e1afb558Robin Lee if (name[1] == 0) continue; 53960fd3feecab4336d964ca8e31c7c3220e1afb558Robin Lee if ((name[1] == '.') && (name[2] == 0)) continue; 54060fd3feecab4336d964ca8e31c7c3220e1afb558Robin Lee } 541095c763dd9aa26a206d10ab7c1d7e1c569298fb3Robin Lee 54260fd3feecab4336d964ca8e31c7c3220e1afb558Robin Lee uint32_t user_id = atoi(name); 54360fd3feecab4336d964ca8e31c7c3220e1afb558Robin Lee 54460fd3feecab4336d964ca8e31c7c3220e1afb558Robin Lee // /data/misc/user/<user_id> 54560fd3feecab4336d964ca8e31c7c3220e1afb558Robin Lee if (ensure_config_user_dirs(user_id) == -1) { 54660fd3feecab4336d964ca8e31c7c3220e1afb558Robin Lee goto fail; 54760fd3feecab4336d964ca8e31c7c3220e1afb558Robin Lee } 54860fd3feecab4336d964ca8e31c7c3220e1afb558Robin Lee 54960fd3feecab4336d964ca8e31c7c3220e1afb558Robin Lee char misc_added_dir[PATH_MAX]; 55060fd3feecab4336d964ca8e31c7c3220e1afb558Robin Lee snprintf(misc_added_dir, PATH_MAX, "%s/user/%s/cacerts-added", misc_dir, name); 55160fd3feecab4336d964ca8e31c7c3220e1afb558Robin Lee 55260fd3feecab4336d964ca8e31c7c3220e1afb558Robin Lee char misc_removed_dir[PATH_MAX]; 55360fd3feecab4336d964ca8e31c7c3220e1afb558Robin Lee snprintf(misc_removed_dir, PATH_MAX, "%s/user/%s/cacerts-removed", misc_dir, name); 55460fd3feecab4336d964ca8e31c7c3220e1afb558Robin Lee 55560fd3feecab4336d964ca8e31c7c3220e1afb558Robin Lee uid_t uid = multiuser_get_uid(user_id, AID_SYSTEM); 55660fd3feecab4336d964ca8e31c7c3220e1afb558Robin Lee gid_t gid = uid; 55760fd3feecab4336d964ca8e31c7c3220e1afb558Robin Lee if (access(keychain_added_dir, F_OK) == 0) { 55860fd3feecab4336d964ca8e31c7c3220e1afb558Robin Lee if (copy_dir_files(keychain_added_dir, misc_added_dir, uid, gid) != 0) { 55960fd3feecab4336d964ca8e31c7c3220e1afb558Robin Lee ALOGE("Some files failed to copy"); 56060fd3feecab4336d964ca8e31c7c3220e1afb558Robin Lee } 56160fd3feecab4336d964ca8e31c7c3220e1afb558Robin Lee } 56260fd3feecab4336d964ca8e31c7c3220e1afb558Robin Lee if (access(keychain_removed_dir, F_OK) == 0) { 56360fd3feecab4336d964ca8e31c7c3220e1afb558Robin Lee if (copy_dir_files(keychain_removed_dir, misc_removed_dir, uid, gid) != 0) { 56460fd3feecab4336d964ca8e31c7c3220e1afb558Robin Lee ALOGE("Some files failed to copy"); 565095c763dd9aa26a206d10ab7c1d7e1c569298fb3Robin Lee } 566095c763dd9aa26a206d10ab7c1d7e1c569298fb3Robin Lee } 567095c763dd9aa26a206d10ab7c1d7e1c569298fb3Robin Lee } 568095c763dd9aa26a206d10ab7c1d7e1c569298fb3Robin Lee closedir(dir); 56907053fcb61436221fac2281394e98ec9d0feab3dRobin Lee 57060fd3feecab4336d964ca8e31c7c3220e1afb558Robin Lee if (access(keychain_added_dir, F_OK) == 0) { 57160fd3feecab4336d964ca8e31c7c3220e1afb558Robin Lee delete_dir_contents(keychain_added_dir, 1, 0); 57207053fcb61436221fac2281394e98ec9d0feab3dRobin Lee } 57360fd3feecab4336d964ca8e31c7c3220e1afb558Robin Lee if (access(keychain_removed_dir, F_OK) == 0) { 57460fd3feecab4336d964ca8e31c7c3220e1afb558Robin Lee delete_dir_contents(keychain_removed_dir, 1, 0); 57507053fcb61436221fac2281394e98ec9d0feab3dRobin Lee } 57607053fcb61436221fac2281394e98ec9d0feab3dRobin Lee } 577095c763dd9aa26a206d10ab7c1d7e1c569298fb3Robin Lee 57807053fcb61436221fac2281394e98ec9d0feab3dRobin Lee version = 3; 579095c763dd9aa26a206d10ab7c1d7e1c569298fb3Robin Lee } 580095c763dd9aa26a206d10ab7c1d7e1c569298fb3Robin Lee 58194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // Persist layout version if changed 58294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (version != oldVersion) { 58394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (fs_write_atomic_int(version_path, version) == -1) { 58494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood ALOGE("Failed to save version to %s: %s", version_path, strerror(errno)); 58594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood goto fail; 58694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 58794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 58894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 58994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // Success! 59094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood res = 0; 59194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 59294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwoodfail: 59394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood free(user_data_dir); 59494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood free(legacy_data_dir); 59594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood free(primary_data_dir); 59694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood return res; 59794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood} 59894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 59994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwoodstatic void drop_privileges() { 60094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (prctl(PR_SET_KEEPCAPS, 1) < 0) { 60194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood ALOGE("prctl(PR_SET_KEEPCAPS) failed: %s\n", strerror(errno)); 60294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood exit(1); 60394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 60494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 60594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (setgid(AID_INSTALL) < 0) { 60694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood ALOGE("setgid() can't drop privileges; exiting.\n"); 60794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood exit(1); 60894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 60994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 61094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (setuid(AID_INSTALL) < 0) { 61194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood ALOGE("setuid() can't drop privileges; exiting.\n"); 61294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood exit(1); 61394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 61494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 61594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood struct __user_cap_header_struct capheader; 61694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood struct __user_cap_data_struct capdata[2]; 61794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood memset(&capheader, 0, sizeof(capheader)); 61894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood memset(&capdata, 0, sizeof(capdata)); 61994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood capheader.version = _LINUX_CAPABILITY_VERSION_3; 62094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood capheader.pid = 0; 62194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 62294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood capdata[CAP_TO_INDEX(CAP_DAC_OVERRIDE)].permitted |= CAP_TO_MASK(CAP_DAC_OVERRIDE); 62394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood capdata[CAP_TO_INDEX(CAP_CHOWN)].permitted |= CAP_TO_MASK(CAP_CHOWN); 62494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood capdata[CAP_TO_INDEX(CAP_SETUID)].permitted |= CAP_TO_MASK(CAP_SETUID); 62594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood capdata[CAP_TO_INDEX(CAP_SETGID)].permitted |= CAP_TO_MASK(CAP_SETGID); 62663568b1430d741f40ca008391c854ef1cc880138MÃ¥rten Kongstad capdata[CAP_TO_INDEX(CAP_FOWNER)].permitted |= CAP_TO_MASK(CAP_FOWNER); 62794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 62894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood capdata[0].effective = capdata[0].permitted; 62994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood capdata[1].effective = capdata[1].permitted; 63094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood capdata[0].inheritable = 0; 63194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood capdata[1].inheritable = 0; 63294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 63394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (capset(&capheader, &capdata[0]) < 0) { 63494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood ALOGE("capset failed: %s\n", strerror(errno)); 63594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood exit(1); 63694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 63794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood} 63894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 6397abb52bcafa2f7b422dfe22c5ea275c2fa9e6201Stephen Smalleystatic int log_callback(int type, const char *fmt, ...) { 6407abb52bcafa2f7b422dfe22c5ea275c2fa9e6201Stephen Smalley va_list ap; 6417abb52bcafa2f7b422dfe22c5ea275c2fa9e6201Stephen Smalley int priority; 6427abb52bcafa2f7b422dfe22c5ea275c2fa9e6201Stephen Smalley 6437abb52bcafa2f7b422dfe22c5ea275c2fa9e6201Stephen Smalley switch (type) { 6447abb52bcafa2f7b422dfe22c5ea275c2fa9e6201Stephen Smalley case SELINUX_WARNING: 6457abb52bcafa2f7b422dfe22c5ea275c2fa9e6201Stephen Smalley priority = ANDROID_LOG_WARN; 6467abb52bcafa2f7b422dfe22c5ea275c2fa9e6201Stephen Smalley break; 6477abb52bcafa2f7b422dfe22c5ea275c2fa9e6201Stephen Smalley case SELINUX_INFO: 6487abb52bcafa2f7b422dfe22c5ea275c2fa9e6201Stephen Smalley priority = ANDROID_LOG_INFO; 6497abb52bcafa2f7b422dfe22c5ea275c2fa9e6201Stephen Smalley break; 6507abb52bcafa2f7b422dfe22c5ea275c2fa9e6201Stephen Smalley default: 6517abb52bcafa2f7b422dfe22c5ea275c2fa9e6201Stephen Smalley priority = ANDROID_LOG_ERROR; 6527abb52bcafa2f7b422dfe22c5ea275c2fa9e6201Stephen Smalley break; 6537abb52bcafa2f7b422dfe22c5ea275c2fa9e6201Stephen Smalley } 6547abb52bcafa2f7b422dfe22c5ea275c2fa9e6201Stephen Smalley va_start(ap, fmt); 6557abb52bcafa2f7b422dfe22c5ea275c2fa9e6201Stephen Smalley LOG_PRI_VA(priority, "SELinux", fmt, ap); 6567abb52bcafa2f7b422dfe22c5ea275c2fa9e6201Stephen Smalley va_end(ap); 6577abb52bcafa2f7b422dfe22c5ea275c2fa9e6201Stephen Smalley return 0; 6587abb52bcafa2f7b422dfe22c5ea275c2fa9e6201Stephen Smalley} 6597abb52bcafa2f7b422dfe22c5ea275c2fa9e6201Stephen Smalley 66094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwoodint main(const int argc, const char *argv[]) { 66194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood char buf[BUFFER_MAX]; 66294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood struct sockaddr addr; 66394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood socklen_t alen; 66494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood int lsocket, s, count; 665bd558d61871218f5b13df2fe4b7cc3b530ee947cStephen Smalley int selinux_enabled = (is_selinux_enabled() > 0); 66694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 66794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood ALOGI("installd firing up\n"); 66894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 6697abb52bcafa2f7b422dfe22c5ea275c2fa9e6201Stephen Smalley union selinux_callback cb; 6707abb52bcafa2f7b422dfe22c5ea275c2fa9e6201Stephen Smalley cb.func_log = log_callback; 6717abb52bcafa2f7b422dfe22c5ea275c2fa9e6201Stephen Smalley selinux_set_callback(SELINUX_CB_LOG, cb); 6727abb52bcafa2f7b422dfe22c5ea275c2fa9e6201Stephen Smalley 67394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (initialize_globals() < 0) { 67494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood ALOGE("Could not initialize globals; exiting.\n"); 67594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood exit(1); 67694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 67794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 67894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (initialize_directories() < 0) { 67994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood ALOGE("Could not create directories; exiting.\n"); 68094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood exit(1); 68194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 68294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 683bd558d61871218f5b13df2fe4b7cc3b530ee947cStephen Smalley if (selinux_enabled && selinux_status_open(true) < 0) { 684bd558d61871218f5b13df2fe4b7cc3b530ee947cStephen Smalley ALOGE("Could not open selinux status; exiting.\n"); 685bd558d61871218f5b13df2fe4b7cc3b530ee947cStephen Smalley exit(1); 686bd558d61871218f5b13df2fe4b7cc3b530ee947cStephen Smalley } 687bd558d61871218f5b13df2fe4b7cc3b530ee947cStephen Smalley 68894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood drop_privileges(); 68994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 69094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood lsocket = android_get_control_socket(SOCKET_PATH); 69194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (lsocket < 0) { 69294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood ALOGE("Failed to get socket from environment: %s\n", strerror(errno)); 69394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood exit(1); 69494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 69594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (listen(lsocket, 5)) { 69694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood ALOGE("Listen on socket failed: %s\n", strerror(errno)); 69794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood exit(1); 69894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 69994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood fcntl(lsocket, F_SETFD, FD_CLOEXEC); 70094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 70194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood for (;;) { 70294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood alen = sizeof(addr); 70394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood s = accept(lsocket, &addr, &alen); 70494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (s < 0) { 70594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood ALOGE("Accept failed: %s\n", strerror(errno)); 70694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood continue; 70794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 70894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood fcntl(s, F_SETFD, FD_CLOEXEC); 70994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 71094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood ALOGI("new connection\n"); 71194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood for (;;) { 71294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood unsigned short count; 71394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (readx(s, &count, sizeof(count))) { 71494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood ALOGE("failed to read size\n"); 71594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood break; 71694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 71794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if ((count < 1) || (count >= BUFFER_MAX)) { 71894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood ALOGE("invalid size %d\n", count); 71994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood break; 72094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 72194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (readx(s, buf, count)) { 72294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood ALOGE("failed to read command\n"); 72394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood break; 72494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 72594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood buf[count] = 0; 726bd558d61871218f5b13df2fe4b7cc3b530ee947cStephen Smalley if (selinux_enabled && selinux_status_updated() > 0) { 727bd558d61871218f5b13df2fe4b7cc3b530ee947cStephen Smalley selinux_android_seapp_context_reload(); 728bd558d61871218f5b13df2fe4b7cc3b530ee947cStephen Smalley } 72994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (execute(s, buf)) break; 73094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 73194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood ALOGI("closing connection\n"); 73294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood close(s); 73394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 73494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 73594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood return 0; 73694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood} 737