other variants don't seem to require it and it doesn't work on latest TWRP this is also not really necessary Change-Id: Ia7e63f2b77d60ba1bb52acfef00a492a62cbe58dgugelfrei
Aleksander Gencel
5 years ago
parent
03860d69b0
commit
77f557c4e0
@ -1 +0,0 @@
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require version-baseband=21C:MPSS.DI.2.0.1.C1.13.2-00002
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@ -1,8 +0,0 @@
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LOCAL_PATH := $(call my-dir)
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include $(CLEAR_VARS)
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LOCAL_C_INCLUDES := bootable/recovery
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LOCAL_SRC_FILES := recovery_updater.cpp
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LOCAL_MODULE := librecovery_updater_g3
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LOCAL_MODULE_TAGS := eng
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include $(BUILD_STATIC_LIBRARY)
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@ -1,189 +0,0 @@
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/*
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* Copyright (C) 2016, The CyanogenMod Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <sys/mman.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "edify/expr.h"
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#include "updater/install.h"
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#define MAX(a, b) (((a) > (b)) ? (a) : (b))
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#define ALPHABET_LEN 256
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#define KB 1024
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#define BASEBAND_PART_PATH "/dev/block/platform/msm_sdcc.1/by-name/modem"
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#define BASEBAND_VER_STR_START "QC_IMAGE_VERSION_STRING="
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#define BASEBAND_VER_STR_START_LEN 24
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#define BASEBAND_VER_BUF_LEN 255
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#define BASEBAND_SZ 64000 * KB /* MMAP 64M of BASEBAND, BASEBAND partition is 64M */
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/* Boyer-Moore string search implementation from Wikipedia */
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/* Return longest suffix length of suffix ending at str[p] */
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static int max_suffix_len(const char *str, size_t str_len, size_t p) {
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uint32_t i;
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for (i = 0; (str[p - i] == str[str_len - 1 - i]) && (i < p); ) {
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i++;
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}
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return i;
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}
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/* Generate table of distance between last character of pat and rightmost
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* occurrence of character c in pat
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*/
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static void bm_make_delta1(int *delta1, const char *pat, size_t pat_len) {
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uint32_t i;
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for (i = 0; i < ALPHABET_LEN; i++) {
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delta1[i] = pat_len;
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}
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for (i = 0; i < pat_len - 1; i++) {
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uint8_t idx = (uint8_t) pat[i];
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delta1[idx] = pat_len - 1 - i;
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}
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}
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/* Generate table of next possible full match from mismatch at pat[p] */
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static void bm_make_delta2(int *delta2, const char *pat, size_t pat_len) {
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int p;
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uint32_t last_prefix = pat_len - 1;
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for (p = pat_len - 1; p >= 0; p--) {
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/* Compare whether pat[p-pat_len] is suffix of pat */
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if (strncmp(pat + p, pat, pat_len - p) == 0) {
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last_prefix = p + 1;
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}
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delta2[p] = last_prefix + (pat_len - 1 - p);
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}
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for (p = 0; p < (int) pat_len - 1; p++) {
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/* Get longest suffix of pattern ending on character pat[p] */
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int suf_len = max_suffix_len(pat, pat_len, p);
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if (pat[p - suf_len] != pat[pat_len - 1 - suf_len]) {
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delta2[pat_len - 1 - suf_len] = pat_len - 1 - p + suf_len;
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}
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}
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}
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static char * bm_search(const char *str, size_t str_len, const char *pat,
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size_t pat_len) {
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int delta1[ALPHABET_LEN];
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int delta2[pat_len];
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int i;
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bm_make_delta1(delta1, pat, pat_len);
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bm_make_delta2(delta2, pat, pat_len);
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if (pat_len == 0) {
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return (char *) str;
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}
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i = pat_len - 1;
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while (i < (int) str_len) {
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int j = pat_len - 1;
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while (j >= 0 && (str[i] == pat[j])) {
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i--;
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j--;
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}
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if (j < 0) {
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return (char *) (str + i + 1);
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}
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i += MAX(delta1[(uint8_t) str[i]], delta2[j]);
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}
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return NULL;
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}
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static int get_baseband_version(char *ver_str, size_t len) {
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int ret = 0;
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int fd;
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char *baseband_data = NULL;
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char *offset = NULL;
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fd = open(BASEBAND_PART_PATH, O_RDONLY);
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if (fd < 0) {
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ret = errno;
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goto err_ret;
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}
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baseband_data = (char *) mmap(NULL, BASEBAND_SZ, PROT_READ, MAP_PRIVATE, fd, 0);
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if (baseband_data == (char *)-1) {
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ret = errno;
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goto err_fd_close;
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}
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/* Do Boyer-Moore search across BASEBAND data */
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offset = bm_search(baseband_data, BASEBAND_SZ, BASEBAND_VER_STR_START, BASEBAND_VER_STR_START_LEN);
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if (offset != NULL) {
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strncpy(ver_str, offset + BASEBAND_VER_STR_START_LEN, len);
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} else {
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ret = -ENOENT;
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}
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munmap(baseband_data, BASEBAND_SZ);
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err_fd_close:
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close(fd);
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err_ret:
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return ret;
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}
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/* verify_baseband("BASEBAND_VERSION", "BASEBAND_VERSION", ...) */
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Value * VerifyBasebandFn(const char *name, State *state, int argc, Expr *argv[]) {
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char current_baseband_version[BASEBAND_VER_BUF_LEN];
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char *baseband_string;
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char *baseband_version;
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char *baseband_short_version;
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int i, ret;
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ret = get_baseband_version(current_baseband_version, BASEBAND_VER_BUF_LEN);
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if (ret) {
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return ErrorAbort(state, "%s() failed to read current BASEBAND version: %d",
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name, ret);
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}
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for (i = 0; i < argc; i++) {
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baseband_string = Evaluate(state, argv[i]);
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if (baseband_string < 0) {
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return ErrorAbort(state, "%s() error parsing arguments: %d",
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name, baseband_string);
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}
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baseband_short_version = strtok(baseband_string, ":");
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baseband_version = strtok(NULL, ":");
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uiPrintf(state, "Checking for BASEBAND version %s", baseband_short_version);
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if (strncmp(baseband_version, current_baseband_version, strlen(baseband_version)) == 0) {
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return StringValue(strdup("1"));
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}
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}
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uiPrintf(state, "ERROR: It appears you are running an unsupported baseband.");
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return StringValue(strdup("0"));
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}
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void Register_librecovery_updater_g3() {
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RegisterFunction("g3.verify_baseband", VerifyBasebandFn);
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}
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@ -1,36 +0,0 @@
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# Copyright (C) 2009 The Android Open Source Project
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# Copyright (c) 2011, The Linux Foundation. All rights reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import hashlib
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import common
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import re
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def FullOTA_Assertions(info):
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AddBasebandAssertion(info)
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return
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def IncrementalOTA_Assertions(info):
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AddBasebandAssertion(info)
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return
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def AddBasebandAssertion(info):
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android_info = info.input_zip.read("OTA/android-info.txt")
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m = re.search(r'require\s+version-baseband\s*=\s*(\S+)', android_info)
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if m:
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versions = m.group(1).split('|')
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if len(versions) and '*' not in versions:
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cmd = 'assert(g3.verify_baseband(' + ','.join(['"%s"' % baseband for baseband in versions]) + ') == "1");'
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info.script.AppendExtra(cmd)
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return
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