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Commit 361342cb authored by Tao Bao's avatar Tao Bao
Browse files

updater: Kill the duplicate PrintSha1() in install.cpp.

Also add a testcase for sha1_check().

Test: mmma bootable/recovery; recovery_component_test passes.

Change-Id: I4d06d551a771aec84e460148544f68b247a7e721
parent a7995d75
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+36 −7
Original line number Diff line number Diff line
@@ -25,8 +25,7 @@

struct selabel_handle *sehandle = nullptr;

static void expect(const char* expected, const char* expr_str,
                   ErrorCode error_code, CauseCode cause_code) {
static void expect(const char* expected, const char* expr_str, CauseCode cause_code) {
    Expr* e;
    int error_count;
    EXPECT_EQ(parse_string(expr_str, &e, &error_count), 0);
@@ -41,7 +40,10 @@ static void expect(const char* expected, const char* expr_str,
        EXPECT_STREQ(expected, result);
    }

    EXPECT_EQ(error_code, state.error_code);
    // Error code is set in updater/updater.cpp only, by parsing State.errmsg.
    EXPECT_EQ(kNoError, state.error_code);

    // Cause code should always be available.
    EXPECT_EQ(cause_code, state.cause_code);

    free(result);
@@ -59,13 +61,40 @@ class UpdaterTest : public ::testing::Test {
TEST_F(UpdaterTest, getprop) {
    expect(android::base::GetProperty("ro.product.device", "").c_str(),
           "getprop(\"ro.product.device\")",
           kNoError, kNoCause);
           kNoCause);

    expect(android::base::GetProperty("ro.build.fingerprint", "").c_str(),
           "getprop(\"ro.build.fingerprint\")",
           kNoError, kNoCause);
           kNoCause);

    // getprop() accepts only one parameter.
    expect(nullptr, "getprop()", kNoError, kArgsParsingFailure);
    expect(nullptr, "getprop(\"arg1\", \"arg2\")", kNoError, kArgsParsingFailure);
    expect(nullptr, "getprop()", kArgsParsingFailure);
    expect(nullptr, "getprop(\"arg1\", \"arg2\")", kArgsParsingFailure);
}

TEST_F(UpdaterTest, sha1_check) {
    // sha1_check(data) returns the SHA-1 of the data.
    expect("81fe8bfe87576c3ecb22426f8e57847382917acf", "sha1_check(\"abcd\")", kNoCause);
    expect("da39a3ee5e6b4b0d3255bfef95601890afd80709", "sha1_check(\"\")", kNoCause);

    // sha1_check(data, sha1_hex, [sha1_hex, ...]) returns the matched SHA-1.
    expect("81fe8bfe87576c3ecb22426f8e57847382917acf",
           "sha1_check(\"abcd\", \"81fe8bfe87576c3ecb22426f8e57847382917acf\")",
           kNoCause);

    expect("81fe8bfe87576c3ecb22426f8e57847382917acf",
           "sha1_check(\"abcd\", \"wrong_sha1\", \"81fe8bfe87576c3ecb22426f8e57847382917acf\")",
           kNoCause);

    // Or "" if there's no match.
    expect("",
           "sha1_check(\"abcd\", \"wrong_sha1\")",
           kNoCause);

    expect("",
           "sha1_check(\"abcd\", \"wrong_sha1\", \"wrong_sha2\")",
           kNoCause);

    // sha1_check() expects at least one argument.
    expect(nullptr, "sha1_check()", kArgsParsingFailure);
}
+19 −36
Original line number Diff line number Diff line
@@ -18,24 +18,24 @@

#include <ctype.h>
#include <errno.h>
#include <fcntl.h>
#include <ftw.h>
#include <inttypes.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/capability.h>
#include <sys/mount.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <unistd.h>
#include <fcntl.h>
#include <time.h>
#include <ftw.h>
#include <sys/capability.h>
#include <sys/xattr.h>
#include <linux/xattr.h>
#include <inttypes.h>
#include <time.h>
#include <unistd.h>

#include <memory>
#include <string>
#include <vector>

#include <android-base/parseint.h>
@@ -45,6 +45,7 @@
#include <cutils/android_reboot.h>
#include <ext4_utils/make_ext4fs.h>
#include <ext4_utils/wipe.h>
#include <openssl/sha.h>
#include <selinux/label.h>
#include <selinux/selinux.h>

@@ -54,8 +55,8 @@
#include "error_code.h"
#include "minzip/DirUtil.h"
#include "mounts.h"
#include "openssl/sha.h"
#include "ota_io.h"
#include "print_sha1.h"
#include "tune2fs.h"
#include "updater/updater.h"

@@ -111,19 +112,6 @@ static int make_parents(char* name) {
    return 0;
}

// Take a sha-1 digest and return it as a newly-allocated hex string.
char* PrintSha1(const uint8_t* digest) {
    char* buffer = reinterpret_cast<char*>(malloc(SHA_DIGEST_LENGTH*2 + 1));
    const char* alphabet = "0123456789abcdef";
    size_t i;
    for (i = 0; i < SHA_DIGEST_LENGTH; ++i) {
        buffer[i*2] = alphabet[(digest[i] >> 4) & 0xf];
        buffer[i*2+1] = alphabet[digest[i] & 0xf];
    }
    buffer[i*2] = '\0';
    return buffer;
}

// mount(fs_type, partition_type, location, mount_point)
//
//    fs_type="ext4"   partition_type="EMMC"    location=device
@@ -1227,30 +1215,25 @@ Value* Sha1CheckFn(const char* name, State* state, int argc, Expr* argv[]) {
    SHA1(reinterpret_cast<uint8_t*>(args[0]->data), args[0]->size, digest);

    if (argc == 1) {
        return StringValue(PrintSha1(digest));
        return StringValue(strdup(print_sha1(digest).c_str()));
    }

    int i;
    for (int i = 1; i < argc; ++i) {
        uint8_t arg_digest[SHA_DIGEST_LENGTH];
    for (i = 1; i < argc; ++i) {
        if (args[i]->type != VAL_STRING) {
            printf("%s(): arg %d is not a string; skipping",
                    name, i);
            printf("%s(): arg %d is not a string; skipping", name, i);
        } else if (ParseSha1(args[i]->data, arg_digest) != 0) {
            // Warn about bad args and skip them.
            printf("%s(): error parsing \"%s\" as sha-1; skipping",
                   name, args[i]->data);
            printf("%s(): error parsing \"%s\" as sha-1; skipping", name, args[i]->data);
        } else if (memcmp(digest, arg_digest, SHA_DIGEST_LENGTH) == 0) {
            break;
            // Found a match.
            return args[i].release();
        }
    }
    if (i >= argc) {

    // Didn't match any of the hex strings; return false.
    return StringValue(strdup(""));
}
    // Found a match.
    return args[i].release();
}

// Read a local file and return its contents (the Value* returned
// is actually a FileContents*).