package {
    default_applicable_licenses: ["external_libpcap_license"],
}

license {
    name: "external_libpcap_license",
    visibility: [":__subpackages__"],
    license_kinds: [
        "SPDX-license-identifier-Apache-2.0",
        "SPDX-license-identifier-BSD",
        "SPDX-license-identifier-ISC",
        "SPDX-license-identifier-MIT",
    ],
    license_text: [
        "LICENSE",
        "NOTICE",
    ],
}

cc_defaults {
    name: "libpcap_defaults",
    cflags: [
        "-DHAVE_CONFIG_H",
        "-D_BSD_SOURCE",
        "-D_U_=__attribute__((__unused__))",
        "-Dlint",
        "-Wall",
        "-Werror",
        "-Wno-implicit-function-declaration",
        "-Wno-int-conversion",
        "-Wno-macro-redefined",
        "-Wno-pointer-arith",
        "-Wno-sign-compare",
        "-Wno-tautological-compare",
        "-Wno-unused-parameter",
        "-Wno-unused-result",
    ],
}

genrule {
    name: "grammar.y",
    cmd: "sed 's/@REENTRANT_PARSER@/%define api.pure/' $(in) > $(out)",
    out: ["grammar.y"],
    srcs: ["grammar.y.in"],
}

genrule {
    name: "grammar.c",
    cmd: "M4=$(location m4) $(location bison) -p pcap_ --no-lines --output=$(genDir)/grammar.c $(in)",
    out: ["grammar.c"],
    srcs: [":grammar.y"],
    tools: [
        "bison",
        "m4",
    ],
}

genrule {
    name: "grammar.h",
    // bison --defines outputs an extra file in addition to outputting the parser,
    // so we still use --output to ensure the unused file is still in genDir.
    cmd: "M4=$(location m4) $(location bison) -p pcap_ --no-lines --defines=$(genDir)/grammar.h --output=$(genDir)/unused $(in)",
    out: ["grammar.h"],
    srcs: [":grammar.y"],
    tools: [
        "bison",
        "m4",
    ],
}

genrule {
    name: "scanner.c",
    cmd: "M4=$(location m4) $(location flex) -P pcap_ -o $(genDir)/scanner.c $(in)",
    out: ["scanner.c"],
    srcs: ["scanner.l"],
    tools: [
        "flex",
        "m4",
    ],
}

genrule {
    name: "scanner.h",
    cmd: "M4=$(location m4) $(location flex) -P pcap_ --header-file=$(genDir)/scanner.h $(in)",
    out: ["scanner.h"],
    srcs: ["scanner.l"],
    tools: [
        "flex",
        "m4",
    ],
}

cc_library {
    name: "libpcap",
    host_supported: true,
    vendor_available: true,
    // Build against the NDK 29 because it's used by the network stack mainline module tests, which
    // need to support Q.
    // TODO(b/148792341): stop hardcoding sdk_version integers in libraries all over the tree and
    // define a min_apex_sdk_version property that all module code can use.
    sdk_version: "29",
    defaults: ["libpcap_defaults"],
    generated_headers: [
        "grammar.h",
        "scanner.h",
    ],

    srcs: [
        ":grammar.c",
        ":scanner.c",
        "bpf_dump.c",
        "bpf_filter.c",
        "bpf_image.c",
        "etherent.c",
        "fad-getad.c",
        "fmtutils.c",
        "gencode.c",
        "nametoaddr.c",
        "optimize.c",
        "pcap-common.c",
        "pcap-linux.c",
        "pcap-netfilter-linux-android.c",
        "pcap-usb-linux.c",
        "pcap-util.c",
        "pcap.c",
        "savefile.c",
        "sf-pcap.c",
        "sf-pcapng.c",
    ],

    target: {
        linux: {
            srcs: [
                "missing/strlcpy.c",
            ],
        },
        darwin: {
            enabled: false,
        },
    },

    export_include_dirs: ["."],
}

//
// Tests (but not _unit_ tests).
//
// It's unlikely anyone's running these manually, but at least compiling them
// shows we can compile libpcap callers...
//

cc_test {
    name: "libpcap_can_set_rfmon_test",
    defaults: ["libpcap_defaults"],
    gtest: false,
    srcs: ["testprogs/can_set_rfmon_test.c"],
    static_libs: ["libpcap"],
}

cc_test {
    name: "libpcap_capture_test",
    defaults: ["libpcap_defaults"],
    gtest: false,
    srcs: ["testprogs/capturetest.c"],
    static_libs: ["libpcap"],
}

cc_test {
    name: "libpcap_filter_test",
    defaults: ["libpcap_defaults"],
    gtest: false,
    srcs: ["testprogs/filtertest.c"],
    static_libs: ["libpcap"],
}

cc_test {
    name: "libpcap_findalldevs_test",
    defaults: ["libpcap_defaults"],
    gtest: false,
    srcs: ["testprogs/findalldevstest.c"],
    static_libs: ["libpcap"],
}

cc_test {
    name: "libpcap_open_test",
    defaults: ["libpcap_defaults"],
    gtest: false,
    srcs: ["testprogs/opentest.c"],
    static_libs: ["libpcap"],
}

cc_test {
    name: "libpcap_reactivate_test",
    defaults: ["libpcap_defaults"],
    gtest: false,
    srcs: ["testprogs/reactivatetest.c"],
    static_libs: ["libpcap"],
}

cc_test {
    name: "libpcap_selpoll_test",
    defaults: ["libpcap_defaults"],
    gtest: false,
    srcs: ["testprogs/selpolltest.c"],
    static_libs: ["libpcap"],
}

cc_test {
    name: "libpcap_threadsignal_test",
    defaults: ["libpcap_defaults"],
    gtest: false,
    srcs: ["testprogs/threadsignaltest.c"],
    static_libs: ["libpcap"],
}

cc_test {
    name: "libpcap_valgrind_test",
    defaults: ["libpcap_defaults"],
    gtest: false,
    srcs: ["testprogs/valgrindtest.c"],
    static_libs: ["libpcap"],
}