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> 1894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood#include <linux/prctl.h> 1994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 2094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood#include "installd.h" 2194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 2294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 2394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood#define BUFFER_MAX 1024 /* input buffer for commands */ 2494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood#define TOKEN_MAX 8 /* max number of arguments in buffer */ 2594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood#define REPLY_MAX 256 /* largest reply allowed */ 2694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 2794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwoodstatic int do_ping(char **arg, char reply[REPLY_MAX]) 2894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood{ 2994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood return 0; 3094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood} 3194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 3294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwoodstatic int do_install(char **arg, char reply[REPLY_MAX]) 3394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood{ 344d3fd4e9988c0eb284dd5104c4dea757f723c716Robert Craig return install(arg[0], atoi(arg[1]), atoi(arg[2]), arg[3]); /* pkgname, uid, gid, seinfo */ 3594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood} 3694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 3794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwoodstatic int do_dexopt(char **arg, char reply[REPLY_MAX]) 3894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood{ 3994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood /* apk_path, uid, is_public */ 4094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood return dexopt(arg[0], atoi(arg[1]), atoi(arg[2])); 4194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood} 4294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 4394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwoodstatic int do_move_dex(char **arg, char reply[REPLY_MAX]) 4494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood{ 4594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood return move_dex(arg[0], arg[1]); /* src, dst */ 4694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood} 4794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 4894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwoodstatic int do_rm_dex(char **arg, char reply[REPLY_MAX]) 4994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood{ 5094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood return rm_dex(arg[0]); /* pkgname */ 5194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood} 5294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 5394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwoodstatic int do_remove(char **arg, char reply[REPLY_MAX]) 5494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood{ 5594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood return uninstall(arg[0], atoi(arg[1])); /* pkgname, userid */ 5694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood} 5794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 5894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwoodstatic int do_rename(char **arg, char reply[REPLY_MAX]) 5994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood{ 6094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood return renamepkg(arg[0], arg[1]); /* oldpkgname, newpkgname */ 6194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood} 6294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 6394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwoodstatic int do_fixuid(char **arg, char reply[REPLY_MAX]) 6494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood{ 6594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood return fix_uid(arg[0], atoi(arg[1]), atoi(arg[2])); /* pkgname, uid, gid */ 6694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood} 6794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 6894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwoodstatic int do_free_cache(char **arg, char reply[REPLY_MAX]) /* TODO int:free_size */ 6994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood{ 7094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood return free_cache((int64_t)atoll(arg[0])); /* free_size */ 7194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood} 7294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 7394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwoodstatic int do_rm_cache(char **arg, char reply[REPLY_MAX]) 7494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood{ 7594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood return delete_cache(arg[0], atoi(arg[1])); /* pkgname, userid */ 7694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood} 7794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 7894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwoodstatic int do_get_size(char **arg, char reply[REPLY_MAX]) 7994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood{ 8094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood int64_t codesize = 0; 8194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood int64_t datasize = 0; 8294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood int64_t cachesize = 0; 8394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood int64_t asecsize = 0; 8494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood int res = 0; 8594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 86abe4fe5b46157ecd2a52d28abf938c816c3ce878Jeff Sharkey /* pkgdir, userid, apkpath */ 878b41780d73930b37b6254cc1dac5607c843839c0Dianne Hackborn res = get_size(arg[0], atoi(arg[1]), arg[2], arg[3], arg[4], arg[5], 8894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood &codesize, &datasize, &cachesize, &asecsize); 8994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 9094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood /* 9194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood * Each int64_t can take up 22 characters printed out. Make sure it 9294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood * doesn't go over REPLY_MAX in the future. 9394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood */ 9494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood snprintf(reply, REPLY_MAX, "%" PRId64 " %" PRId64 " %" PRId64 " %" PRId64, 9594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood codesize, datasize, cachesize, asecsize); 9694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood return res; 9794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood} 9894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 9994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwoodstatic int do_rm_user_data(char **arg, char reply[REPLY_MAX]) 10094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood{ 10194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood return delete_user_data(arg[0], atoi(arg[1])); /* pkgname, userid */ 10294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood} 10394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 10494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwoodstatic int do_mk_user_data(char **arg, char reply[REPLY_MAX]) 10594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood{ 106a2d838a542c34d2887a0ec1fafa5f47566d595e9Nick Kralevich return make_user_data(arg[0], atoi(arg[1]), atoi(arg[2])); /* pkgname, uid, userid */ 10794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood} 10894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 10994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwoodstatic int do_rm_user(char **arg, char reply[REPLY_MAX]) 11094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood{ 111abe4fe5b46157ecd2a52d28abf938c816c3ce878Jeff Sharkey return delete_user(atoi(arg[0])); /* userid */ 11294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood} 11394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 11494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwoodstatic int do_movefiles(char **arg, char reply[REPLY_MAX]) 11594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood{ 11694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood return movefiles(); 11794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood} 11894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 11994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwoodstatic int do_linklib(char **arg, char reply[REPLY_MAX]) 12094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood{ 12194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood return linklib(arg[0], arg[1], atoi(arg[2])); 12294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood} 12394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 12494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwoodstruct cmdinfo { 12594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood const char *name; 12694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood unsigned numargs; 12794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood int (*func)(char **arg, char reply[REPLY_MAX]); 12894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood}; 12994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 13094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwoodstruct cmdinfo cmds[] = { 13194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood { "ping", 0, do_ping }, 1324d3fd4e9988c0eb284dd5104c4dea757f723c716Robert Craig { "install", 4, do_install }, 13394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood { "dexopt", 3, do_dexopt }, 13494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood { "movedex", 2, do_move_dex }, 13594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood { "rmdex", 1, do_rm_dex }, 13694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood { "remove", 2, do_remove }, 13794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood { "rename", 2, do_rename }, 13894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood { "fixuid", 3, do_fixuid }, 13994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood { "freecache", 1, do_free_cache }, 14094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood { "rmcache", 2, do_rm_cache }, 1418b41780d73930b37b6254cc1dac5607c843839c0Dianne Hackborn { "getsize", 6, do_get_size }, 14294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood { "rmuserdata", 2, do_rm_user_data }, 14394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood { "movefiles", 0, do_movefiles }, 14494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood { "linklib", 3, do_linklib }, 145a2d838a542c34d2887a0ec1fafa5f47566d595e9Nick Kralevich { "mkuserdata", 3, do_mk_user_data }, 14694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood { "rmuser", 1, do_rm_user }, 14794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood}; 14894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 14994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwoodstatic int readx(int s, void *_buf, int count) 15094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood{ 15194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood char *buf = _buf; 15294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood int n = 0, r; 15394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (count < 0) return -1; 15494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood while (n < count) { 15594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood r = read(s, buf + n, count - n); 15694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (r < 0) { 15794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (errno == EINTR) continue; 15894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood ALOGE("read error: %s\n", strerror(errno)); 15994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood return -1; 16094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 16194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (r == 0) { 16294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood ALOGE("eof\n"); 16394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood return -1; /* EOF */ 16494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 16594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood n += r; 16694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 16794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood return 0; 16894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood} 16994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 17094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwoodstatic int writex(int s, const void *_buf, int count) 17194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood{ 17294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood const char *buf = _buf; 17394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood int n = 0, r; 17494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (count < 0) return -1; 17594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood while (n < count) { 17694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood r = write(s, buf + n, count - n); 17794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (r < 0) { 17894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (errno == EINTR) continue; 17994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood ALOGE("write error: %s\n", strerror(errno)); 18094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood return -1; 18194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 18294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood n += r; 18394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 18494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood return 0; 18594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood} 18694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 18794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 18894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood/* Tokenize the command buffer, locate a matching command, 18994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood * ensure that the required number of arguments are provided, 19094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood * call the function(), return the result. 19194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood */ 19294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwoodstatic int execute(int s, char cmd[BUFFER_MAX]) 19394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood{ 19494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood char reply[REPLY_MAX]; 19594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood char *arg[TOKEN_MAX+1]; 19694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood unsigned i; 19794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood unsigned n = 0; 19894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood unsigned short count; 19994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood int ret = -1; 20094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 2011705fc44fb85c4232637f9f7189c3bdca98a63d5Brian Carlstrom // ALOGI("execute('%s')\n", cmd); 20294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 20394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood /* default reply is "" */ 20494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood reply[0] = 0; 20594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 20694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood /* n is number of args (not counting arg[0]) */ 20794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood arg[0] = cmd; 20894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood while (*cmd) { 20994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (isspace(*cmd)) { 21094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood *cmd++ = 0; 21194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood n++; 21294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood arg[n] = cmd; 21394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (n == TOKEN_MAX) { 21494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood ALOGE("too many arguments\n"); 21594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood goto done; 21694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 21794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 21894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood cmd++; 21994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 22094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 22194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood for (i = 0; i < sizeof(cmds) / sizeof(cmds[0]); i++) { 22294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (!strcmp(cmds[i].name,arg[0])) { 22394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (n != cmds[i].numargs) { 22494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood ALOGE("%s requires %d arguments (%d given)\n", 22594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood cmds[i].name, cmds[i].numargs, n); 22694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } else { 22794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood ret = cmds[i].func(arg + 1, reply); 22894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 22994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood goto done; 23094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 23194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 23294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood ALOGE("unsupported command '%s'\n", arg[0]); 23394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 23494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwooddone: 23594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (reply[0]) { 23694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood n = snprintf(cmd, BUFFER_MAX, "%d %s", ret, reply); 23794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } else { 23894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood n = snprintf(cmd, BUFFER_MAX, "%d", ret); 23994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 24094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (n > BUFFER_MAX) n = BUFFER_MAX; 24194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood count = n; 24294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 2431705fc44fb85c4232637f9f7189c3bdca98a63d5Brian Carlstrom // ALOGI("reply: '%s'\n", cmd); 24494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (writex(s, &count, sizeof(count))) return -1; 24594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (writex(s, cmd, count)) return -1; 24694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood return 0; 24794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood} 24894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 24994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood/** 25094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood * Initialize all the global variables that are used elsewhere. Returns 0 upon 25194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood * success and -1 on error. 25294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood */ 25394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwoodvoid free_globals() { 25494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood size_t i; 25594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 25694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood for (i = 0; i < android_system_dirs.count; i++) { 25794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (android_system_dirs.dirs[i].path != NULL) { 25894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood free(android_system_dirs.dirs[i].path); 25994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 26094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 26194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 26294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood free(android_system_dirs.dirs); 26394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood} 26494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 26594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwoodint initialize_globals() { 26694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // Get the android data directory. 26794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (get_path_from_env(&android_data_dir, "ANDROID_DATA") < 0) { 26894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood return -1; 26994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 27094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 27194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // Get the android app directory. 27294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (copy_and_append(&android_app_dir, &android_data_dir, APP_SUBDIR) < 0) { 27394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood return -1; 27494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 27594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 27694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // Get the android protected app directory. 27794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (copy_and_append(&android_app_private_dir, &android_data_dir, PRIVATE_APP_SUBDIR) < 0) { 27894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood return -1; 27994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 28094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 28194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // Get the android app native library directory. 28294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (copy_and_append(&android_app_lib_dir, &android_data_dir, APP_LIB_SUBDIR) < 0) { 28394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood return -1; 28494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 28594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 28694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // Get the sd-card ASEC mount point. 28794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (get_path_from_env(&android_asec_dir, "ASEC_MOUNTPOINT") < 0) { 28894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood return -1; 28994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 29094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 29194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // Get the android media directory. 29294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (copy_and_append(&android_media_dir, &android_data_dir, MEDIA_SUBDIR) < 0) { 29394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood return -1; 29494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 29594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 29694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // Take note of the system and vendor directories. 29794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood android_system_dirs.count = 2; 29894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 29994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood android_system_dirs.dirs = calloc(android_system_dirs.count, sizeof(dir_rec_t)); 30094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (android_system_dirs.dirs == NULL) { 30194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood ALOGE("Couldn't allocate array for dirs; aborting\n"); 30294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood return -1; 30394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 30494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 30594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // system 30694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (get_path_from_env(&android_system_dirs.dirs[0], "ANDROID_ROOT") < 0) { 30794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood free_globals(); 30894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood return -1; 30994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 31094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 31194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // append "app/" to dirs[0] 31294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood char *system_app_path = build_string2(android_system_dirs.dirs[0].path, APP_SUBDIR); 31394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood android_system_dirs.dirs[0].path = system_app_path; 31494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood android_system_dirs.dirs[0].len = strlen(system_app_path); 31594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 31694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // vendor 31794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // TODO replace this with an environment variable (doesn't exist yet) 31894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood android_system_dirs.dirs[1].path = "/vendor/app/"; 31994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood android_system_dirs.dirs[1].len = strlen(android_system_dirs.dirs[1].path); 32094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 32194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood return 0; 32294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood} 32394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 32494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwoodint initialize_directories() { 32594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood int res = -1; 32694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 32794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // Read current filesystem layout version to handle upgrade paths 32894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood char version_path[PATH_MAX]; 32994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood snprintf(version_path, PATH_MAX, "%s.layout_version", android_data_dir.path); 33094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 33194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood int oldVersion; 33294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (fs_read_atomic_int(version_path, &oldVersion) == -1) { 33394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood oldVersion = 0; 33494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 33594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood int version = oldVersion; 33694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 33794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // /data/user 33894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood char *user_data_dir = build_string2(android_data_dir.path, SECONDARY_USER_PREFIX); 33994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // /data/data 34094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood char *legacy_data_dir = build_string2(android_data_dir.path, PRIMARY_USER_PREFIX); 34194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // /data/user/0 34294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood char *primary_data_dir = build_string3(android_data_dir.path, SECONDARY_USER_PREFIX, "0"); 34394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (!user_data_dir || !legacy_data_dir || !primary_data_dir) { 34494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood goto fail; 34594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 34694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 34794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // Make the /data/user directory if necessary 34894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (access(user_data_dir, R_OK) < 0) { 34994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (mkdir(user_data_dir, 0711) < 0) { 35094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood goto fail; 35194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 35294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (chown(user_data_dir, AID_SYSTEM, AID_SYSTEM) < 0) { 35394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood goto fail; 35494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 35594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (chmod(user_data_dir, 0711) < 0) { 35694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood goto fail; 35794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 35894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 35994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // Make the /data/user/0 symlink to /data/data if necessary 36094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (access(primary_data_dir, R_OK) < 0) { 36194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (symlink(legacy_data_dir, primary_data_dir)) { 36294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood goto fail; 36394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 36494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 36594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 36694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (version == 0) { 36794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // Introducing multi-user, so migrate /data/media contents into /data/media/0 36894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood ALOGD("Upgrading /data/media for multi-user"); 36994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 37094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // Ensure /data/media 37194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (fs_prepare_dir(android_media_dir.path, 0770, AID_MEDIA_RW, AID_MEDIA_RW) == -1) { 37294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood goto fail; 37394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 37494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 37594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // /data/media.tmp 37694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood char media_tmp_dir[PATH_MAX]; 37794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood snprintf(media_tmp_dir, PATH_MAX, "%smedia.tmp", android_data_dir.path); 37894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 37994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // Only copy when upgrade not already in progress 38094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (access(media_tmp_dir, F_OK) == -1) { 38194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (rename(android_media_dir.path, media_tmp_dir) == -1) { 38294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood ALOGE("Failed to move legacy media path: %s", strerror(errno)); 38394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood goto fail; 38494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 38594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 38694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 38794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // Create /data/media again 38894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (fs_prepare_dir(android_media_dir.path, 0770, AID_MEDIA_RW, AID_MEDIA_RW) == -1) { 38994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood goto fail; 39094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 39194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 39294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // /data/media/0 39394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood char owner_media_dir[PATH_MAX]; 39494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood snprintf(owner_media_dir, PATH_MAX, "%s0", android_media_dir.path); 39594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 39694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // Move any owner data into place 39794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (access(media_tmp_dir, F_OK) == 0) { 39894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (rename(media_tmp_dir, owner_media_dir) == -1) { 39994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood ALOGE("Failed to move owner media path: %s", strerror(errno)); 40094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood goto fail; 40194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 40294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 40394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 40494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // Ensure media directories for any existing users 40594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood DIR *dir; 40694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood struct dirent *dirent; 40794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood char user_media_dir[PATH_MAX]; 40894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 40994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood dir = opendir(user_data_dir); 41094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (dir != NULL) { 41194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood while ((dirent = readdir(dir))) { 41294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (dirent->d_type == DT_DIR) { 41394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood const char *name = dirent->d_name; 41494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 41594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // skip "." and ".." 41694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (name[0] == '.') { 41794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (name[1] == 0) continue; 41894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if ((name[1] == '.') && (name[2] == 0)) continue; 41994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 42094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 42194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // /data/media/<user_id> 42294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood snprintf(user_media_dir, PATH_MAX, "%s%s", android_media_dir.path, name); 42394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (fs_prepare_dir(user_media_dir, 0770, AID_MEDIA_RW, AID_MEDIA_RW) == -1) { 42494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood goto fail; 42594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 42694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 42794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 42894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood closedir(dir); 42994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 43094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 43194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood version = 1; 43294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 43394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 43494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // /data/media/obb 43594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood char media_obb_dir[PATH_MAX]; 43694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood snprintf(media_obb_dir, PATH_MAX, "%sobb", android_media_dir.path); 43794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 43894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (version == 1) { 43994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // Introducing /data/media/obb for sharing OBB across users; migrate 44094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // any existing OBB files from owner. 44194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood ALOGD("Upgrading to shared /data/media/obb"); 44294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 44394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // /data/media/0/Android/obb 44494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood char owner_obb_path[PATH_MAX]; 44594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood snprintf(owner_obb_path, PATH_MAX, "%s0/Android/obb", android_media_dir.path); 44694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 44794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // Only move if target doesn't already exist 44894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (access(media_obb_dir, F_OK) != 0 && access(owner_obb_path, F_OK) == 0) { 44994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (rename(owner_obb_path, media_obb_dir) == -1) { 45094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood ALOGE("Failed to move OBB from owner: %s", strerror(errno)); 45194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood goto fail; 45294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 45394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 45494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 45594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood version = 2; 45694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 45794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 45894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (ensure_media_user_dirs(0) == -1) { 45994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood ALOGE("Failed to setup media for user 0"); 46094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood goto fail; 46194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 46294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (fs_prepare_dir(media_obb_dir, 0770, AID_MEDIA_RW, AID_MEDIA_RW) == -1) { 46394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood goto fail; 46494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 46594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 46694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // Persist layout version if changed 46794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (version != oldVersion) { 46894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (fs_write_atomic_int(version_path, version) == -1) { 46994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood ALOGE("Failed to save version to %s: %s", version_path, strerror(errno)); 47094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood goto fail; 47194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 47294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 47394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 47494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood // Success! 47594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood res = 0; 47694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 47794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwoodfail: 47894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood free(user_data_dir); 47994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood free(legacy_data_dir); 48094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood free(primary_data_dir); 48194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood return res; 48294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood} 48394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 48494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwoodstatic void drop_privileges() { 48594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (prctl(PR_SET_KEEPCAPS, 1) < 0) { 48694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood ALOGE("prctl(PR_SET_KEEPCAPS) failed: %s\n", strerror(errno)); 48794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood exit(1); 48894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 48994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 49094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (setgid(AID_INSTALL) < 0) { 49194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood ALOGE("setgid() can't drop privileges; exiting.\n"); 49294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood exit(1); 49394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 49494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 49594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (setuid(AID_INSTALL) < 0) { 49694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood ALOGE("setuid() can't drop privileges; exiting.\n"); 49794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood exit(1); 49894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 49994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 50094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood struct __user_cap_header_struct capheader; 50194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood struct __user_cap_data_struct capdata[2]; 50294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood memset(&capheader, 0, sizeof(capheader)); 50394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood memset(&capdata, 0, sizeof(capdata)); 50494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood capheader.version = _LINUX_CAPABILITY_VERSION_3; 50594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood capheader.pid = 0; 50694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 50794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood capdata[CAP_TO_INDEX(CAP_DAC_OVERRIDE)].permitted |= CAP_TO_MASK(CAP_DAC_OVERRIDE); 50894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood capdata[CAP_TO_INDEX(CAP_CHOWN)].permitted |= CAP_TO_MASK(CAP_CHOWN); 50994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood capdata[CAP_TO_INDEX(CAP_SETUID)].permitted |= CAP_TO_MASK(CAP_SETUID); 51094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood capdata[CAP_TO_INDEX(CAP_SETGID)].permitted |= CAP_TO_MASK(CAP_SETGID); 51194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 51294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood capdata[0].effective = capdata[0].permitted; 51394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood capdata[1].effective = capdata[1].permitted; 51494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood capdata[0].inheritable = 0; 51594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood capdata[1].inheritable = 0; 51694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 51794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (capset(&capheader, &capdata[0]) < 0) { 51894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood ALOGE("capset failed: %s\n", strerror(errno)); 51994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood exit(1); 52094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 52194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood} 52294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 52394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwoodint main(const int argc, const char *argv[]) { 52494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood char buf[BUFFER_MAX]; 52594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood struct sockaddr addr; 52694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood socklen_t alen; 52794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood int lsocket, s, count; 52894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 52994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood ALOGI("installd firing up\n"); 53094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 53194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (initialize_globals() < 0) { 53294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood ALOGE("Could not initialize globals; exiting.\n"); 53394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood exit(1); 53494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 53594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 53694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (initialize_directories() < 0) { 53794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood ALOGE("Could not create directories; exiting.\n"); 53894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood exit(1); 53994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 54094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 54194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood drop_privileges(); 54294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 54394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood lsocket = android_get_control_socket(SOCKET_PATH); 54494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (lsocket < 0) { 54594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood ALOGE("Failed to get socket from environment: %s\n", strerror(errno)); 54694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood exit(1); 54794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 54894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (listen(lsocket, 5)) { 54994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood ALOGE("Listen on socket failed: %s\n", strerror(errno)); 55094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood exit(1); 55194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 55294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood fcntl(lsocket, F_SETFD, FD_CLOEXEC); 55394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 55494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood for (;;) { 55594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood alen = sizeof(addr); 55694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood s = accept(lsocket, &addr, &alen); 55794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (s < 0) { 55894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood ALOGE("Accept failed: %s\n", strerror(errno)); 55994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood continue; 56094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 56194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood fcntl(s, F_SETFD, FD_CLOEXEC); 56294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 56394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood ALOGI("new connection\n"); 56494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood for (;;) { 56594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood unsigned short count; 56694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (readx(s, &count, sizeof(count))) { 56794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood ALOGE("failed to read size\n"); 56894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood break; 56994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 57094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if ((count < 1) || (count >= BUFFER_MAX)) { 57194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood ALOGE("invalid size %d\n", count); 57294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood break; 57394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 57494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (readx(s, buf, count)) { 57594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood ALOGE("failed to read command\n"); 57694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood break; 57794afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 57894afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood buf[count] = 0; 57994afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood if (execute(s, buf)) break; 58094afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 58194afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood ALOGI("closing connection\n"); 58294afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood close(s); 58394afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood } 58494afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood 58594afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood return 0; 58694afecf4b6f437b3ee9a076242402e421c6c07a6Mike Lockwood} 587