int restorecon_data()
{
char *data_dir = build_string2(android_data_dir.path, PRIMARY_USER_PREFIX);
char *user_dir = build_string2(android_data_dir.path, SECONDARY_USER_PREFIX);
unsigned int flags = SELINUX_ANDROID_RESTORECON_RECURSE |
SELINUX_ANDROID_RESTORECON_DATADATA;
int ret = 0;
if (!data_dir || !user_dir) {
return -1;
}
if (selinux_android_restorecon(data_dir, flags) < 0) {
ALOGE("restorecon failed for %s: %s\n", data_dir, strerror(errno));
ret |= -1;
}
if (selinux_android_restorecon(user_dir, flags) < 0) {
ALOGE("restorecon failed for %s: %s\n", user_dir, strerror(errno));
ret |= -1;
}
free(data_dir);
free(user_dir);
return ret;
}
static int mkdirs(char *name)
{
int ret;
char *x = name + 1;
uid_t uid = -1;
gid_t gid = -1;
unsigned int mode = 0775;
uint64_t cap = 0;
if(name[0] != '/') return -1;
for(;;) {
x = adb_dirstart(x);
if(x == 0) return 0;
*x = 0;
if (is_on_system(name) || is_on_vendor(name)) {
fs_config(name, 1, &uid, &gid, &mode, &cap);
}
ret = adb_mkdir(name, mode);
if((ret < 0) && (errno != EEXIST)) {
D("mkdir(\"%s\") -> %s\n", name, strerror(errno));
*x = '/';
return ret;
} else if(ret == 0) {
ret = chown(name, uid, gid);
if (ret < 0) {
*x = '/';
return ret;
}
selinux_android_restorecon(name, 0);
}
*x++ = '/';
}
return 0;
}
static bool secure_mkdirs(const std::string& path) {
uid_t uid = -1;
gid_t gid = -1;
unsigned int mode = 0775;
uint64_t cap = 0;
if (path[0] != '/') return false;
std::vector<std::string> path_components = android::base::Split(path, "/");
path_components.pop_back(); // For "/system/bin/sh", only create "/system/bin".
std::string partial_path;
for (const auto& path_component : path_components) {
if (partial_path.back() != OS_PATH_SEPARATOR) partial_path += OS_PATH_SEPARATOR;
partial_path += path_component;
if (should_use_fs_config(partial_path)) {
fs_config(partial_path.c_str(), 1, nullptr, &uid, &gid, &mode, &cap);
}
if (adb_mkdir(partial_path.c_str(), mode) == -1) {
if (errno != EEXIST) {
return false;
}
} else {
if (chown(partial_path.c_str(), uid, gid) == -1) {
return false;
}
// Not all filesystems support setting SELinux labels. http://b/23530370.
selinux_android_restorecon(partial_path.c_str(), 0);
}
}
return true;
}
/* called to setup bootcharting */
int bootchart_init( void )
{
int ret;
char buff[4];
int timeout = 0, count = 0;
buff[0] = 0;
proc_read( LOG_STARTFILE, buff, sizeof(buff) );
if (buff[0] != 0) {
timeout = atoi(buff);
}
else {
/* when running with emulator, androidboot.bootchart=<timeout>
* might be passed by as kernel parameters to specify the bootchart
* timeout. this is useful when using -wipe-data since the /data
* partition is fresh
*/
char cmdline[1024];
char* s;
#define KERNEL_OPTION "androidboot.bootchart="
proc_read( "/proc/cmdline", cmdline, sizeof(cmdline) );
s = strstr(cmdline, KERNEL_OPTION);
if (s) {
s += sizeof(KERNEL_OPTION)-1;
timeout = atoi(s);
}
}
if (timeout == 0)
return 0;
if (timeout > BOOTCHART_MAX_TIME_SEC)
timeout = BOOTCHART_MAX_TIME_SEC;
count = (timeout*1000 + BOOTCHART_POLLING_MS-1)/BOOTCHART_POLLING_MS;
do {ret=mkdir(LOG_ROOT,0755);}while (ret < 0 && errno == EINTR);
selinux_android_restorecon(LOG_ROOT, 0);
file_buff_open(log_stat, LOG_STAT);
file_buff_open(log_procs, LOG_PROCS);
file_buff_open(log_disks, LOG_DISK);
/* create kernel process accounting file */
{
int fd = open( LOG_ACCT, O_WRONLY|O_CREAT|O_TRUNC,0644);
if (fd >= 0) {
close(fd);
acct( LOG_ACCT );
}
}
log_header();
return count;
}
/*
* Function: native_restorecon
* Purpose: restore default SELinux security context
* Parameters: pathname: the pathname for the file to be relabeled
* Returns: boolean: (true) file label successfully restored, (false) otherwise
* Exceptions: none
*/
static jboolean native_restorecon(JNIEnv *env, jobject clazz, jstring pathname) {
#ifdef HAVE_SELINUX
if (isSELinuxDisabled)
return true;
const char *file = const_cast<char *>(env->GetStringUTFChars(pathname, NULL));
int ret = selinux_android_restorecon(file);
env->ReleaseStringUTFChars(pathname, file);
return (ret == 0);
#else
return true;
#endif
}
scrolly = m_bg1scrolly;
for (i = 0; i < 256; i++)
m_bg1_tilemap->set_scrollx((i + scrolly) & 0xff, m_rasterram[i]);
m_bg1_tilemap->set_scrolly(0, scrolly);
screen.priority().fill(0, cliprect);
m_bg1_tilemap->draw(screen, bitmap, cliprect, 0, 0);
m_spr_old->turbofrc_draw_sprites(m_spriteram3,m_spriteram3.bytes(),m_spritepalettebank, machine(), bitmap, cliprect, screen.priority(), 0);
m_spr_old->turbofrc_draw_sprites(m_spriteram3,m_spriteram3.bytes(),m_spritepalettebank, machine(), bitmap, cliprect, screen.priority(), 1);
return 0;
}
UINT32 aerofgt_state::screen_update_karatblz(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
{
m_bg1_tilemap->set_scrollx(0, m_bg1scrollx - 8);
m_bg1_tilemap->set_scrolly(0, m_bg1scrolly);
m_bg2_tilemap->set_scrollx(0, m_bg2scrollx - 4);
m_bg2_tilemap->set_scrolly(0, m_bg2scrolly);
screen.priority().fill(0, cliprect);
/*
* Function: native_restorecon
* Purpose: restore default SELinux security context
* Parameters: pathname: the pathname for the file to be relabeled
* Returns: boolean: (true) file label successfully restored, (false) otherwise
* Exceptions: none
*/
static jboolean native_restorecon(JNIEnv *env, jobject, jstring pathnameStr) {
if (isSELinuxDisabled) {
return true;
}
ScopedUtfChars pathname(env, pathnameStr);
if (pathname.c_str() == NULL) {
ALOGV("restorecon(%p) => threw exception", pathnameStr);
return false;
}
int ret = selinux_android_restorecon(pathname.c_str());
ALOGV("restorecon(%s) => %d", pathname.c_str(), ret);
return (ret == 0);
}
void restorecon_main(void)
{
#if defined(__ANDROID__)
char **s;
int flags = 0;
if (toys.optflags & FLAG_D) flags |= SELINUX_ANDROID_RESTORECON_DATADATA;
if (toys.optflags & FLAG_F) flags |= SELINUX_ANDROID_RESTORECON_FORCE;
if (toys.optflags & (FLAG_R|FLAG_r))
flags |= SELINUX_ANDROID_RESTORECON_RECURSE;
if (toys.optflags & FLAG_n) flags |= SELINUX_ANDROID_RESTORECON_NOCHANGE;
if (toys.optflags & FLAG_v) flags |= SELINUX_ANDROID_RESTORECON_VERBOSE;
for (s = toys.optargs; *s; s++)
if (selinux_android_restorecon(*s, flags) < 0)
perror_msg("restorecon failed: %s", *s);
#endif
}
int restorecon_main(int argc, char **argv)
{
int ch, i, rc;
unsigned int flags = 0;
progname = argv[0];
do {
ch = getopt(argc, argv, "FnrRv");
if (ch == EOF)
break;
switch (ch) {
case 'F':
flags |= SELINUX_ANDROID_RESTORECON_FORCE;
break;
case 'n':
flags |= SELINUX_ANDROID_RESTORECON_NOCHANGE;
break;
case 'r':
case 'R':
flags |= SELINUX_ANDROID_RESTORECON_RECURSE;
break;
case 'v':
flags |= SELINUX_ANDROID_RESTORECON_VERBOSE;
break;
default:
usage();
}
} while (1);
argc -= optind;
argv += optind;
if (!argc)
usage();
for (i = 0; i < argc; i++) {
rc = selinux_android_restorecon(argv[i], flags);
if (rc < 0)
fprintf(stderr, "Could not restorecon %s: %s\n", argv[i],
strerror(errno));
}
return 0;
}
int restorecon(const char* pathname)
{
return selinux_android_restorecon(pathname, 0);
}
int VolumeManager::fixupAsecPermissions(const char *id, gid_t gid, const char* filename) {
char asecFileName[255];
char loopDevice[255];
char mountPoint[255];
if (gid < AID_APP) {
SLOGE("Group ID is not in application range");
return -1;
}
if (!isLegalAsecId(id)) {
SLOGE("fixupAsecPermissions: Invalid asec id \"%s\"", id);
errno = EINVAL;
return -1;
}
if (findAsec(id, asecFileName, sizeof(asecFileName))) {
SLOGE("Couldn't find ASEC %s", id);
return -1;
}
char idHash[33];
if (!asecHash(id, idHash, sizeof(idHash))) {
SLOGE("Hash of '%s' failed (%s)", id, strerror(errno));
return -1;
}
if (Loop::lookupActive(idHash, loopDevice, sizeof(loopDevice))) {
SLOGE("Unable fix permissions during lookup on %s (%s)", id, strerror(errno));
return -1;
}
unsigned int nr_sec = 0;
struct asec_superblock sb;
if (Loop::lookupInfo(loopDevice, &sb, &nr_sec)) {
return -1;
}
int written = snprintf(mountPoint, sizeof(mountPoint), "%s/%s", Volume::ASECDIR, id);
if ((written < 0) || (size_t(written) >= sizeof(mountPoint))) {
SLOGE("Unable remount to fix permissions for %s: couldn't construct mountpoint", id);
return -1;
}
int result = 0;
if ((sb.c_opts & ASEC_SB_C_OPTS_EXT4) == 0) {
return 0;
}
int ret = Ext4::doMount(loopDevice, mountPoint,
false /* read-only */,
true /* remount */,
false /* executable */,
false /* sdcard */);
if (ret) {
SLOGE("Unable remount to fix permissions for %s (%s)", id, strerror(errno));
return -1;
}
char *paths[] = { mountPoint, NULL };
FTS *fts = fts_open(paths, FTS_PHYSICAL | FTS_NOCHDIR | FTS_XDEV, NULL);
if (fts) {
// Traverse the entire hierarchy and chown to system UID.
for (FTSENT *ftsent = fts_read(fts); ftsent != NULL; ftsent = fts_read(fts)) {
// We don't care about the lost+found directory.
if (!strcmp(ftsent->fts_name, "lost+found")) {
continue;
}
/*
* There can only be one file marked as private right now.
* This should be more robust, but it satisfies the requirements
* we have for right now.
*/
const bool privateFile = !strcmp(ftsent->fts_name, filename);
int fd = open(ftsent->fts_accpath, O_NOFOLLOW);
if (fd < 0) {
SLOGE("Couldn't open file %s: %s", ftsent->fts_accpath, strerror(errno));
result = -1;
continue;
}
result |= fchown(fd, AID_SYSTEM, privateFile? gid : AID_SYSTEM);
if (ftsent->fts_info & FTS_D) {
result |= fchmod(fd, 0755);
} else if (ftsent->fts_info & FTS_F) {
result |= fchmod(fd, privateFile ? 0640 : 0644);
}
if (selinux_android_restorecon(ftsent->fts_path, 0) < 0) {
SLOGE("restorecon failed for %s: %s\n", ftsent->fts_path, strerror(errno));
result |= -1;
}
close(fd);
}
fts_close(fts);
// Finally make the directory readable by everyone.
int dirfd = open(mountPoint, O_DIRECTORY);
if (dirfd < 0 || fchmod(dirfd, 0755)) {
SLOGE("Couldn't change owner of existing directory %s: %s", mountPoint, strerror(errno));
result |= -1;
}
close(dirfd);
} else {
result |= -1;
}
result |= Ext4::doMount(loopDevice, mountPoint,
true /* read-only */,
true /* remount */,
true /* execute */,
false /* sdcard */);
if (result) {
SLOGE("ASEC fix permissions failed (%s)", strerror(errno));
return -1;
}
if (mDebug) {
SLOGD("ASEC %s permissions fixed", id);
}
return 0;
}
static int handle_send_file(int s, char *path, uid_t uid,
gid_t gid, mode_t mode, char *buffer, bool do_unlink)
{
syncmsg msg;
unsigned int timestamp = 0;
int fd;
fd = adb_open_mode(path, O_WRONLY | O_CREAT | O_EXCL | O_CLOEXEC, mode);
if(fd < 0 && errno == ENOENT) {
if(mkdirs(path) != 0) {
if(fail_errno(s))
return -1;
fd = -1;
} else {
fd = adb_open_mode(path, O_WRONLY | O_CREAT | O_EXCL | O_CLOEXEC, mode);
}
}
if(fd < 0 && errno == EEXIST) {
fd = adb_open_mode(path, O_WRONLY | O_CLOEXEC, mode);
}
if(fd < 0) {
if(fail_errno(s))
return -1;
fd = -1;
} else {
if(fchown(fd, uid, gid) != 0) {
fail_errno(s);
errno = 0;
}
/*
* fchown clears the setuid bit - restore it if present.
* Ignore the result of calling fchmod. It's not supported
* by all filesystems. b/12441485
*/
fchmod(fd, mode);
}
for(;;) {
unsigned int len;
if(readx(s, &msg.data, sizeof(msg.data)))
goto fail;
if(msg.data.id != ID_DATA) {
if(msg.data.id == ID_DONE) {
timestamp = ltohl(msg.data.size);
break;
}
fail_message(s, "invalid data message");
goto fail;
}
len = ltohl(msg.data.size);
if(syc_size_enabled == 1) {
if(len > SYNC_DATA_MAX) {
fail_message(s, "oversize data message");
goto fail;
} else {
unsigned int total = 0;
while (total < len) {
int count = len - total;
if (count > SYNC_DATA_MAX_CUSTOMIZE) {
count = SYNC_DATA_MAX_CUSTOMIZE;
}
if(readx(s, buffer, count))
goto fail;
if(fd < 0)
continue;
if(writex(fd, buffer, count)) {
int saved_errno = errno;
adb_close(fd);
if (do_unlink) adb_unlink(path);
fd = -1;
errno = saved_errno;
if(fail_errno(s)) return -1;
}
total += count;
}
}
}else {
if(len > SYNC_DATA_MAX) {
fail_message(s, "oversize data message");
goto fail;
}
if(readx(s, buffer, len))
goto fail;
if(fd < 0)
continue;
if(writex(fd, buffer, len)) {
int saved_errno = errno;
adb_close(fd);
if (do_unlink) adb_unlink(path);
fd = -1;
errno = saved_errno;
if(fail_errno(s)) return -1;
}
}
}
if(fd >= 0) {
struct utimbuf u;
adb_close(fd);
selinux_android_restorecon(path, 0);
u.actime = timestamp;
u.modtime = timestamp;
utime(path, &u);
msg.status.id = ID_OKAY;
msg.status.msglen = 0;
if(writex(s, &msg.status, sizeof(msg.status)))
return -1;
}
return 0;
fail:
if(fd >= 0)
adb_close(fd);
if (do_unlink) adb_unlink(path);
return -1;
}
/* dump Dalvik and native stack traces, return the trace file location (NULL if none) */
const char *dump_traces() {
const char* result = NULL;
char traces_path[PROPERTY_VALUE_MAX] = "";
property_get("dalvik.vm.stack-trace-file", traces_path, "");
if (!traces_path[0]) return NULL;
/* move the old traces.txt (if any) out of the way temporarily */
char anr_traces_path[PATH_MAX];
strlcpy(anr_traces_path, traces_path, sizeof(anr_traces_path));
strlcat(anr_traces_path, ".anr", sizeof(anr_traces_path));
if (rename(traces_path, anr_traces_path) && errno != ENOENT) {
fprintf(stderr, "rename(%s, %s): %s\n", traces_path, anr_traces_path, strerror(errno));
return NULL; // Can't rename old traces.txt -- no permission? -- leave it alone instead
}
/* make the directory if necessary */
char anr_traces_dir[PATH_MAX];
strlcpy(anr_traces_dir, traces_path, sizeof(anr_traces_dir));
char *slash = strrchr(anr_traces_dir, '/');
if (slash != NULL) {
*slash = '\0';
if (!mkdir(anr_traces_dir, 0775)) {
chown(anr_traces_dir, AID_SYSTEM, AID_SYSTEM);
chmod(anr_traces_dir, 0775);
if (selinux_android_restorecon(anr_traces_dir, 0) == -1) {
fprintf(stderr, "restorecon failed for %s: %s\n", anr_traces_dir, strerror(errno));
}
} else if (errno != EEXIST) {
fprintf(stderr, "mkdir(%s): %s\n", anr_traces_dir, strerror(errno));
return NULL;
}
}
/* create a new, empty traces.txt file to receive stack dumps */
int fd = TEMP_FAILURE_RETRY(open(traces_path, O_CREAT | O_WRONLY | O_TRUNC | O_NOFOLLOW | O_CLOEXEC,
0666)); /* -rw-rw-rw- */
if (fd < 0) {
fprintf(stderr, "%s: %s\n", traces_path, strerror(errno));
return NULL;
}
int chmod_ret = fchmod(fd, 0666);
if (chmod_ret < 0) {
fprintf(stderr, "fchmod on %s failed: %s\n", traces_path, strerror(errno));
close(fd);
return NULL;
}
/* walk /proc and kill -QUIT all Dalvik processes */
DIR *proc = opendir("/proc");
if (proc == NULL) {
fprintf(stderr, "/proc: %s\n", strerror(errno));
goto error_close_fd;
}
/* use inotify to find when processes are done dumping */
int ifd = inotify_init();
if (ifd < 0) {
fprintf(stderr, "inotify_init: %s\n", strerror(errno));
goto error_close_fd;
}
int wfd = inotify_add_watch(ifd, traces_path, IN_CLOSE_WRITE);
if (wfd < 0) {
fprintf(stderr, "inotify_add_watch(%s): %s\n", traces_path, strerror(errno));
goto error_close_ifd;
}
struct dirent *d;
int dalvik_found = 0;
while ((d = readdir(proc))) {
int pid = atoi(d->d_name);
if (pid <= 0) continue;
char path[PATH_MAX];
char data[PATH_MAX];
snprintf(path, sizeof(path), "/proc/%d/exe", pid);
ssize_t len = readlink(path, data, sizeof(data) - 1);
if (len <= 0) {
continue;
}
data[len] = '\0';
if (!strncmp(data, "/system/bin/app_process", strlen("/system/bin/app_process"))) {
/* skip zygote -- it won't dump its stack anyway */
snprintf(path, sizeof(path), "/proc/%d/cmdline", pid);
int cfd = TEMP_FAILURE_RETRY(open(path, O_RDONLY | O_CLOEXEC));
len = read(cfd, data, sizeof(data) - 1);
close(cfd);
if (len <= 0) {
continue;
}
data[len] = '\0';
if (!strncmp(data, "zygote", strlen("zygote"))) {
continue;
}
++dalvik_found;
uint64_t start = nanotime();
if (kill(pid, SIGQUIT)) {
fprintf(stderr, "kill(%d, SIGQUIT): %s\n", pid, strerror(errno));
continue;
}
/* wait for the writable-close notification from inotify */
struct pollfd pfd = { ifd, POLLIN, 0 };
int ret = poll(&pfd, 1, 5000); /* 5 sec timeout */
if (ret < 0) {
fprintf(stderr, "poll: %s\n", strerror(errno));
} else if (ret == 0) {
fprintf(stderr, "warning: timed out dumping pid %d\n", pid);
} else {
struct inotify_event ie;
read(ifd, &ie, sizeof(ie));
}
if (lseek(fd, 0, SEEK_END) < 0) {
fprintf(stderr, "lseek: %s\n", strerror(errno));
} else {
dprintf(fd, "[dump dalvik stack %d: %.3fs elapsed]\n",
pid, (float)(nanotime() - start) / NANOS_PER_SEC);
}
} else if (should_dump_native_traces(data)) {
/* dump native process if appropriate */
if (lseek(fd, 0, SEEK_END) < 0) {
fprintf(stderr, "lseek: %s\n", strerror(errno));
} else {
static uint16_t timeout_failures = 0;
uint64_t start = nanotime();
/* If 3 backtrace dumps fail in a row, consider debuggerd dead. */
if (timeout_failures == 3) {
dprintf(fd, "too many stack dump failures, skipping...\n");
} else if (dump_backtrace_to_file_timeout(pid, fd, 20) == -1) {
dprintf(fd, "dumping failed, likely due to a timeout\n");
timeout_failures++;
} else {
timeout_failures = 0;
}
dprintf(fd, "[dump native stack %d: %.3fs elapsed]\n",
pid, (float)(nanotime() - start) / NANOS_PER_SEC);
}
}
}
if (dalvik_found == 0) {
fprintf(stderr, "Warning: no Dalvik processes found to dump stacks\n");
}
static char dump_traces_path[PATH_MAX];
strlcpy(dump_traces_path, traces_path, sizeof(dump_traces_path));
strlcat(dump_traces_path, ".bugreport", sizeof(dump_traces_path));
if (rename(traces_path, dump_traces_path)) {
fprintf(stderr, "rename(%s, %s): %s\n", traces_path, dump_traces_path, strerror(errno));
goto error_close_ifd;
}
result = dump_traces_path;
/* replace the saved [ANR] traces.txt file */
rename(anr_traces_path, traces_path);
error_close_ifd:
close(ifd);
error_close_fd:
close(fd);
return result;
}
static bool handle_send_file(int s, const char* path, uid_t uid, gid_t gid, uint64_t capabilities,
mode_t mode, std::vector<char>& buffer, bool do_unlink) {
syncmsg msg;
unsigned int timestamp = 0;
__android_log_security_bswrite(SEC_TAG_ADB_SEND_FILE, path);
int fd = adb_open_mode(path, O_WRONLY | O_CREAT | O_EXCL | O_CLOEXEC, mode);
if (fd < 0 && errno == ENOENT) {
if (!secure_mkdirs(adb_dirname(path))) {
SendSyncFailErrno(s, "secure_mkdirs failed");
goto fail;
}
fd = adb_open_mode(path, O_WRONLY | O_CREAT | O_EXCL | O_CLOEXEC, mode);
}
if (fd < 0 && errno == EEXIST) {
fd = adb_open_mode(path, O_WRONLY | O_CLOEXEC, mode);
}
if (fd < 0) {
SendSyncFailErrno(s, "couldn't create file");
goto fail;
} else {
if (fchown(fd, uid, gid) == -1) {
SendSyncFailErrno(s, "fchown failed");
goto fail;
}
// Not all filesystems support setting SELinux labels. http://b/23530370.
selinux_android_restorecon(path, 0);
// fchown clears the setuid bit - restore it if present.
// Ignore the result of calling fchmod. It's not supported
// by all filesystems, so we don't check for success. b/12441485
fchmod(fd, mode);
if (!update_capabilities(path, capabilities)) {
SendSyncFailErrno(s, "update_capabilities failed");
goto fail;
}
}
while (true) {
if (!ReadFdExactly(s, &msg.data, sizeof(msg.data))) goto fail;
if (msg.data.id != ID_DATA) {
if (msg.data.id == ID_DONE) {
timestamp = msg.data.size;
break;
}
SendSyncFail(s, "invalid data message");
goto abort;
}
if (msg.data.size > buffer.size()) { // TODO: resize buffer?
SendSyncFail(s, "oversize data message");
goto abort;
}
if (!ReadFdExactly(s, &buffer[0], msg.data.size)) goto abort;
if (!WriteFdExactly(fd, &buffer[0], msg.data.size)) {
SendSyncFailErrno(s, "write failed");
goto fail;
}
}
adb_close(fd);
utimbuf u;
u.actime = timestamp;
u.modtime = timestamp;
utime(path, &u);
msg.status.id = ID_OKAY;
msg.status.msglen = 0;
return WriteFdExactly(s, &msg.status, sizeof(msg.status));
fail:
// If there's a problem on the device, we'll send an ID_FAIL message and
// close the socket. Unfortunately the kernel will sometimes throw that
// data away if the other end keeps writing without reading (which is
// the case with old versions of adb). To maintain compatibility, keep
// reading and throwing away ID_DATA packets until the other side notices
// that we've reported an error.
while (true) {
if (!ReadFdExactly(s, &msg.data, sizeof(msg.data))) goto fail;
if (msg.data.id == ID_DONE) {
goto abort;
} else if (msg.data.id != ID_DATA) {
char id[5];
memcpy(id, &msg.data.id, sizeof(msg.data.id));
id[4] = '\0';
D("handle_send_fail received unexpected id '%s' during failure", id);
goto abort;
}
if (msg.data.size > buffer.size()) {
D("handle_send_fail received oversized packet of length '%u' during failure",
msg.data.size);
goto abort;
}
if (!ReadFdExactly(s, &buffer[0], msg.data.size)) goto abort;
}
abort:
if (fd >= 0) adb_close(fd);
if (do_unlink) adb_unlink(path);
return false;
}
static bool handle_send_file(int s, const char* path, uid_t uid,
gid_t gid, mode_t mode, std::vector<char>& buffer, bool do_unlink) {
syncmsg msg;
unsigned int timestamp = 0;
int fd = adb_open_mode(path, O_WRONLY | O_CREAT | O_EXCL | O_CLOEXEC, mode);
if (fd < 0 && errno == ENOENT) {
if (!secure_mkdirs(path)) {
SendSyncFailErrno(s, "secure_mkdirs failed");
goto fail;
}
fd = adb_open_mode(path, O_WRONLY | O_CREAT | O_EXCL | O_CLOEXEC, mode);
}
if (fd < 0 && errno == EEXIST) {
fd = adb_open_mode(path, O_WRONLY | O_CLOEXEC, mode);
}
if (fd < 0) {
SendSyncFailErrno(s, "couldn't create file");
goto fail;
} else {
if (fchown(fd, uid, gid) == -1) {
SendSyncFailErrno(s, "fchown failed");
goto fail;
}
// Not all filesystems support setting SELinux labels. http://b/23530370.
selinux_android_restorecon(path, 0);
// fchown clears the setuid bit - restore it if present.
// Ignore the result of calling fchmod. It's not supported
// by all filesystems. b/12441485
fchmod(fd, mode);
}
while (true) {
unsigned int len;
if (!ReadFdExactly(s, &msg.data, sizeof(msg.data))) goto fail;
if (msg.data.id != ID_DATA) {
if (msg.data.id == ID_DONE) {
timestamp = msg.data.size;
break;
}
SendSyncFail(s, "invalid data message");
goto fail;
}
len = msg.data.size;
if (len > buffer.size()) { // TODO: resize buffer?
SendSyncFail(s, "oversize data message");
goto fail;
}
if (!ReadFdExactly(s, &buffer[0], len)) goto fail;
if (!WriteFdExactly(fd, &buffer[0], len)) {
SendSyncFailErrno(s, "write failed");
goto fail;
}
}
adb_close(fd);
utimbuf u;
u.actime = timestamp;
u.modtime = timestamp;
utime(path, &u);
msg.status.id = ID_OKAY;
msg.status.msglen = 0;
return WriteFdExactly(s, &msg.status, sizeof(msg.status));
fail:
if (fd >= 0) adb_close(fd);
if (do_unlink) adb_unlink(path);
return false;
}
int restorecon_recursive(const char* pathname)
{
return selinux_android_restorecon(pathname, SELINUX_ANDROID_RESTORECON_RECURSE);
}
void BufferQueueDump::dump(String8& result, const char* prefix) {
// dump status to log buffer first
const char* bufName = (TRACK_PRODUCER == mMode) ? "Dequeued" : "Acquired";
result.appendFormat("%s*BufferQueueDump mIsBackupBufInited=%d, m%sBufs(size=%d), mMode=%s\n",
prefix, mIsBackupBufInited, bufName, mObtainedBufs.size(),
(TRACK_PRODUCER == mMode) ? "TRACK_PRODUCER" : "TRACK_CONSUMER");
if ((mLastObtainedBuf != NULL) && (mLastObtainedBuf->mGraphicBuffer != NULL)) {
result.appendFormat("%s [-1] mLast%sBuf->mGraphicBuffer->handle=%p\n",
prefix, bufName, mLastObtainedBuf->mGraphicBuffer->handle);
}
for (size_t i = 0; i < mObtainedBufs.size(); i++) {
const sp<DumpBuffer>& buffer = mObtainedBufs[i];
result.appendFormat("%s [%02u] handle=%p, fence=%p, time=%#llx\n",
prefix, i, buffer->mGraphicBuffer->handle, buffer->mFence.get(), buffer->mTimeStamp);
}
// start buffer dump check and process
char value[PROPERTY_VALUE_MAX];
property_get(PROP_DUMP_NAME, value, DEFAULT_DUMP_NAME);
if (strcmp(value, DEFAULT_DUMP_NAME) == 0 || strlen(value) == 0) {
// debug feature (bqdump) is not enabled
return;
}
// For aee manual dump, we must create a directory to save files.
// The step should not be completed by a script.
struct stat sb;
if (stat(DUMP_FILE_PATH, &sb) != 0) {
// ths permission of /data/SF_dump must be 777,
// or some processes cannot save files to /data/SF_dump
mode_t mode = umask(0);
if (mkdir(DUMP_FILE_PATH, 0777) != 0) {
BQD_LOGE("mkdir(%s) failed", DUMP_FILE_PATH);
}
umask(mode);
if (selinux_android_restorecon(DUMP_FILE_PATH, 0) == -1) {
BQD_LOGE("restorecon failed(%s) failed", DUMP_FILE_PATH);
} else {
BQD_LOGD("restorecon(%s)", DUMP_FILE_PATH);
}
}
if (access(DUMP_FILE_PATH, R_OK | W_OK | X_OK) != 0) {
BQD_LOGE("The permission of %s cannot be access by this process", DUMP_FILE_PATH);
}
uint32_t backupCnt = 0;
bool isMatched = parseDumpConfig(value, &backupCnt);
// if value contains '#', it means setting continues dump
// otherwise, dump buffers
if (strchr(value, '#') != NULL) {
if (isMatched) {
setBackupCount(backupCnt);
}
} else {
if (isMatched) {
if (mBackupBuf.getSize() > 0) {
mBackupBuf.dump(result, prefix);
}
dumpObtainedBufs();
}
}
}
int restorecon(const char* pathname, int flags)
{
return selinux_android_restorecon(pathname, flags);
}