static int read_data(ZipArchive *zip, const ZipEntry *entry,
char** ppData, int* pLength) {
int len = (int)mzGetZipEntryUncompLen(entry);
if (len <= 0) {
LOGE("Bad data length %d\n", len);
return -1;
}
char *data = malloc(len + 1);
if (data == NULL) {
LOGE("Can't allocate %d bytes for data\n", len + 1);
return -2;
}
bool ok = mzReadZipEntry(zip, entry, data, len);
if (!ok) {
LOGE("Error while reading data\n");
free(data);
return -3;
}
data[len] = '\0'; // not necessary, but just to be safe
*ppData = data;
if (pLength) {
*pLength = len;
}
return 0;
}
// The update binary ask us to install a firmware file on reboot. Set
// that up. Takes ownership of type and filename.
static int
handle_firmware_update(char* type, char* filename, ZipArchive* zip) {
unsigned int data_size;
const ZipEntry* entry = NULL;
if (strncmp(filename, "PACKAGE:", 8) == 0) {
entry = mzFindZipEntry(zip, filename+8);
if (entry == NULL) {
LOGE("Failed to find \"%s\" in package", filename+8);
return INSTALL_ERROR;
}
data_size = entry->uncompLen;
} else {
struct stat st_data;
if (stat(filename, &st_data) < 0) {
LOGE("Error stat'ing %s: %s\n", filename, strerror(errno));
return INSTALL_ERROR;
}
data_size = st_data.st_size;
}
LOGI("type is %s; size is %d; file is %s\n",
type, data_size, filename);
char* data = malloc(data_size);
if (data == NULL) {
LOGI("Can't allocate %d bytes for firmware data\n", data_size);
return INSTALL_ERROR;
}
if (entry) {
if (mzReadZipEntry(zip, entry, data, data_size) == false) {
LOGE("Failed to read \"%s\" from package", filename+8);
return INSTALL_ERROR;
}
} else {
FILE* f = fopen(filename, "rb");
if (f == NULL) {
LOGE("Failed to open %s: %s\n", filename, strerror(errno));
return INSTALL_ERROR;
}
if (fread(data, 1, data_size, f) != data_size) {
LOGE("Failed to read firmware data: %s\n", strerror(errno));
return INSTALL_ERROR;
}
fclose(f);
}
#ifndef BOARD_HAS_NO_MISC_PARTITION
if (remember_firmware_update(type, data, data_size)) {
LOGE("Can't store %s image\n", type);
free(data);
return INSTALL_ERROR;
}
#endif
free(filename);
return INSTALL_SUCCESS;
}
// The update binary ask us to install a firmware file on reboot. Set
// that up. Takes ownership of type and filename.
static int
handle_firmware_update(char* type, char* filename, ZipArchive* zip) {
unsigned int data_size;
const ZipEntry* entry = NULL;
if (strncmp(filename, "PACKAGE:", 8) == 0) {
entry = mzFindZipEntry(zip, filename+8);
if (entry == NULL) {
LOGE("从升级包中查找\"%s\"失败", filename+8);
return INSTALL_ERROR;
}
data_size = entry->uncompLen;
} else {
struct stat st_data;
if (stat(filename, &st_data) < 0) {
LOGE("错误说明 %s: %s\n", filename, strerror(errno));
return INSTALL_ERROR;
}
data_size = st_data.st_size;
}
LOGI("类型:%s; 大小:%d; 文件:%s\n",
type, data_size, filename);
char* data = malloc(data_size);
if (data == NULL) {
LOGI("无法分配%d字节的固件数据\n", data_size);
return INSTALL_ERROR;
}
if (entry) {
if (mzReadZipEntry(zip, entry, data, data_size) == false) {
LOGE("无法从升级包中读取\"%s\"", filename+8);
return INSTALL_ERROR;
}
} else {
FILE* f = fopen(filename, "rb");
if (f == NULL) {
LOGE("无法打开 %s: %s\n", filename, strerror(errno));
return INSTALL_ERROR;
}
if (fread(data, 1, data_size, f) != data_size) {
LOGE("无法读取固件数据: %s\n", strerror(errno));
return INSTALL_ERROR;
}
fclose(f);
}
if (remember_firmware_update(type, data, data_size)) {
LOGE("无法存储镜像%s\n", type);
free(data);
return INSTALL_ERROR;
}
free(filename);
return INSTALL_SUCCESS;
}
/*
* Function : libaroma_zip_read
* Return Value: int
* Descriptions: read zip entry contents
*/
int libaroma_zip_read(
LIBAROMA_ZIP zip,
bytep * bufp,
const char * zpath,
byte bytesafe) {
const ZipEntry * se = mzFindZipEntry((ZipArchive *) zip, zpath);
if (se == NULL) {
ALOGW("libaroma_zip_read mzFindZipEntry error (%s)", zpath);
return 0;
}
int sz = se->uncompLen + (bytesafe ? 0 : 1);
bytep buf = malloc(sz);
if (!mzReadZipEntry((ZipArchive *) zip, se, (char *) buf, se->uncompLen)) {
ALOGW("libaroma_zip_read mzReadZipEntry error (%s)", zpath);
free(buf);
return 0;
}
if (!bytesafe) {
buf[se->uncompLen] = '\0';
}
*bufp = buf;
return sz;
} /* End of libaroma_zip_read */
//-- Extract To Memory
byte az_readmem(AZMEM * out, const char * zpath, byte bytesafe) {
char z_path[256];
snprintf(z_path, sizeof(z_path) - 1, "%s", zpath);
const ZipEntry * se = mzFindZipEntry(&zip, z_path);
if (se == NULL) {
return 0;
}
out->sz = se->uncompLen + (bytesafe ? 0 : 1);
out->data = malloc(out->sz);
//memset(out->data,0,out->sz);
if (!mzReadZipEntry(&zip, se, out->data, se->uncompLen)) {
free(out->data);
return 0;
}
if (!bytesafe) {
out->data[se->uncompLen] = '\0';
}
return 1;
}
int main(int argc, char** argv) {
// Various things log information to stdout or stderr more or less
// at random (though we've tried to standardize on stdout). The
// log file makes more sense if buffering is turned off so things
// appear in the right order.
setbuf(stdout, NULL);
setbuf(stderr, NULL);
if (argc != 4) {
printf("unexpected number of arguments (%d)\n", argc);
return 1;
}
char* version = argv[1];
if ((version[0] != '1' && version[0] != '2' && version[0] != '3') ||
version[1] != '\0') {
// We support version 1, 2, or 3.
printf("wrong updater binary API; expected 1, 2, or 3; "
"got %s\n",
argv[1]);
return 2;
}
// Set up the pipe for sending commands back to the parent process.
int fd = atoi(argv[2]);
FILE* cmd_pipe = fdopen(fd, "wb");
setlinebuf(cmd_pipe);
// Extract the script from the package.
const char* package_filename = argv[3];
MemMapping map;
if (sysMapFile(package_filename, &map) != 0) {
printf("failed to map package %s\n", argv[3]);
return 3;
}
ZipArchive za;
int err;
err = mzOpenZipArchive(map.addr, map.length, &za);
if (err != 0) {
printf("failed to open package %s: %s\n",
argv[3], strerror(err));
return 3;
}
const ZipEntry* script_entry = mzFindZipEntry(&za, SCRIPT_NAME);
if (script_entry == NULL) {
printf("failed to find %s in %s\n", SCRIPT_NAME, package_filename);
return 4;
}
char* script = malloc(script_entry->uncompLen+1);
if (!mzReadZipEntry(&za, script_entry, script, script_entry->uncompLen)) {
printf("failed to read script from package\n");
return 5;
}
script[script_entry->uncompLen] = '\0';
const ZipEntry* file_contexts_entry = mzFindZipEntry(&za, SELINUX_CONTEXTS_ZIP);
if (file_contexts_entry != NULL) {
int file_contexts_fd = creat(SELINUX_CONTEXTS_TMP, 0644);
if (file_contexts_fd < 0) {
fprintf(stderr, "Could not extract %s to '%s'\n", SELINUX_CONTEXTS_ZIP, SELINUX_CONTEXTS_TMP);
return 3;
}
int ret_val = mzExtractZipEntryToFile(&za, file_contexts_entry, file_contexts_fd);
close(file_contexts_fd);
if (!ret_val) {
fprintf(stderr, "Could not extract '%s'\n", SELINUX_CONTEXTS_ZIP);
return 3;
}
}
// Configure edify's functions.
RegisterBuiltins();
RegisterInstallFunctions();
RegisterBlockImageFunctions();
RegisterDeviceExtensions();
FinishRegistration();
// Parse the script.
Expr* root;
int error_count = 0;
int error = parse_string(script, &root, &error_count);
if (error != 0 || error_count > 0) {
printf("%d parse errors\n", error_count);
return 6;
}
if (access(SELINUX_CONTEXTS_TMP, R_OK) == 0) {
struct selinux_opt seopts[] = {
{ SELABEL_OPT_PATH, SELINUX_CONTEXTS_TMP }
};
sehandle = selabel_open(SELABEL_CTX_FILE, seopts, 1);
} else {
struct selinux_opt seopts[] = {
{ SELABEL_OPT_PATH, "/file_contexts" }
};
sehandle = selabel_open(SELABEL_CTX_FILE, seopts, 1);
}
if (!sehandle) {
fprintf(cmd_pipe, "ui_print Warning: No file_contexts\n");
}
// Evaluate the parsed script.
UpdaterInfo updater_info;
updater_info.cmd_pipe = cmd_pipe;
updater_info.package_zip = &za;
updater_info.version = atoi(version);
updater_info.package_zip_addr = map.addr;
updater_info.package_zip_len = map.length;
State state;
state.cookie = &updater_info;
state.script = script;
state.errmsg = NULL;
char* result = Evaluate(&state, root);
if (result == NULL) {
if (state.errmsg == NULL) {
printf("script aborted (no error message)\n");
fprintf(cmd_pipe, "ui_print script aborted (no error message)\n");
} else {
printf("script aborted: %s\n", state.errmsg);
char* line = strtok(state.errmsg, "\n");
while (line) {
fprintf(cmd_pipe, "ui_print %s\n", line);
line = strtok(NULL, "\n");
}
fprintf(cmd_pipe, "ui_print\n");
}
free(state.errmsg);
return 7;
} else {
fprintf(cmd_pipe, "ui_print script succeeded: result was [%s]\n", result);
free(result);
}
if (updater_info.package_zip) {
mzCloseZipArchive(updater_info.package_zip);
}
sysReleaseMap(&map);
free(script);
return 0;
}
int main(int argc, char** argv) {
// Various things log information to stdout or stderr more or less
// at random. The log file makes more sense if buffering is
// turned off so things appear in the right order.
setbuf(stdout, NULL);
setbuf(stderr, NULL);
if (argc != 4) {
fprintf(stderr, "unexpected number of arguments (%d)\n", argc);
return 1;
}
char* version = argv[1];
if ((version[0] != '1' && version[0] != '2' && version[0] != '3') ||
version[1] != '\0') {
// We support version 1, 2, or 3.
fprintf(stderr, "wrong updater binary API; expected 1, 2, or 3; "
"got %s\n",
argv[1]);
//printf("Wrong updater binary API; expected 1, 2, or 3; we just got '%s' \n",argv[1]);
return 2;
}
// Set up the pipe for sending commands back to the parent process.
int fd = atoi(argv[2]);
FILE* cmd_pipe = fdopen(fd, "wb");
setlinebuf(cmd_pipe);
// Extract the script from the package.
char* package_data = argv[3];
ZipArchive za;
int err;
err = mzOpenZipArchive(package_data, &za);
if (err != 0) {
fprintf(stderr, "failed to open package %s: %s\n",
package_data, strerror(err));
return 3;
}
const ZipEntry* script_entry = mzFindZipEntry(&za, SCRIPT_NAME);
if (script_entry == NULL) {
fprintf(stderr, "failed to find %s in %s\n", SCRIPT_NAME, package_data);
return 4;
}
char* script = malloc(script_entry->uncompLen+1);
if (!mzReadZipEntry(&za, script_entry, script, script_entry->uncompLen)) {
fprintf(stderr, "failed to read script from package\n");
return 5;
}
script[script_entry->uncompLen] = '\0';
// Configure edify's functions.
RegisterBuiltins();
RegisterInstallFunctions();
RegisterDeviceExtensions();
FinishRegistration();
// Parse the script.
Expr* root;
int error_count = 0;
yy_scan_string(script);
int error = yyparse(&root, &error_count);
if (error != 0 || error_count > 0) {
fprintf(stderr, "%d parse errors\n", error_count);
return 6;
}
struct selinux_opt seopts[] = {
{ SELABEL_OPT_PATH, "/file_contexts" }
};
sehandle = selabel_open(SELABEL_CTX_FILE, seopts, 1);
if (!sehandle) {
fprintf(stderr, "Warning: No file_contexts\n");
// fprintf(cmd_pipe, "ui_print Warning: No file_contexts\n");
}
// Evaluate the parsed script.
UpdaterInfo updater_info;
updater_info.cmd_pipe = cmd_pipe;
updater_info.package_zip = &za;
updater_info.version = atoi(version);
State state;
state.cookie = &updater_info;
state.script = script;
state.errmsg = NULL;
char* result = Evaluate(&state, root);
if (result == NULL) {
if (state.errmsg == NULL) {
fprintf(stderr, "script aborted (no error message)\n");
fprintf(cmd_pipe, "ui_print script aborted (no error message)\n");
} else {
fprintf(stderr, "script aborted: %s\n", state.errmsg);
char* line = strtok(state.errmsg, "\n");
while (line) {
fprintf(cmd_pipe, "ui_print %s\n", line);
line = strtok(NULL, "\n");
}
fprintf(cmd_pipe, "ui_print\n");
}
free(state.errmsg);
return 7;
} else {
fprintf(stderr, "script result was [%s]\n", result);
free(result);
}
if (updater_info.package_zip) {
mzCloseZipArchive(updater_info.package_zip);
}
free(script);
return 0;
}
