package {
    default_applicable_licenses: ["external_android-clat_license"],
}

// Added automatically by a large-scale-change
//
// large-scale-change included anything that looked like it might be a license
// text as a license_text. e.g. LICENSE, NOTICE, COPYING etc.
//
// Please consider removing redundant or irrelevant files from 'license_text:'.
// See: http://go/android-license-faq
license {
    name: "external_android-clat_license",
    visibility: [":__subpackages__"],
    license_kinds: [
        "SPDX-license-identifier-Apache-2.0",
    ],
    license_text: [
        "LICENSE",
        "NOTICE",
    ],
}

cc_defaults {
    name: "clatd_defaults",

    cflags: [
        "-Wall",
        "-Werror",
        "-Wunused-parameter",

        // Bug: http://b/33566695
        "-Wno-address-of-packed-member",
    ],
}

// Code used both by the daemon and by unit tests.
filegroup {
    name: "clatd_common",
    srcs: [
        "clatd.c",
        "dump.c",
        "getaddr.c",
        "icmp.c",
        "ipv4.c",
        "ipv6.c",
        "logging.c",
        "translate.c",
    ],
}

// The clat daemon.
cc_binary {
    name: "clatd",
    defaults: ["clatd_defaults"],
    srcs: [
        ":clatd_common",
        "main.c"
    ],
    static_libs: [
        "libip_checksum",
    ],
    shared_libs: [
        "liblog",
    ],
    relative_install_path: "for-system",

    // Static libc++ for smaller apex size while shipping clatd in the mainline module.
    // See b/213123047
    stl: "libc++_static",

    // Only enable clang-tidy for the daemon, not the tests, because enabling it for the
    // tests substantially increases build/compile cycle times and doesn't really provide a
    // security benefit.
    tidy: true,
    tidy_checks: [
        "-*",
        "cert-*",
        "clang-analyzer-security*",
        // b/2043314, warnings on memcpy_s, memset_s, snprintf_s calls
        // are blocking the migration from gnu99 to gnu11.
        // Until those warnings are fixed, disable these checks.
        "-clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling",
        "android-*",
    ],
    tidy_checks_as_errors: [
        "clang-analyzer-security*",
        "cert-*",
        "android-*",
    ],
    sanitize: {
        memtag_heap: true,
    },

    apex_available: [
        "com.android.tethering",
        "//apex_available:platform",
    ],
    min_sdk_version: "30",
}

// Unit tests.
cc_test {
    name: "clatd_test",
    defaults: ["clatd_defaults"],
    srcs: [
        ":clatd_common",
        "clatd_test.cpp"
    ],
    static_libs: [
        "libbase",
        "libip_checksum",
        "libnetd_test_tun_interface",
    ],
    shared_libs: [
        "libcutils",
        "liblog",
        "libnetutils",
    ],
    test_suites: ["device-tests"],
    require_root: true,
}