occlum/tools/occlum

#!/bin/bash

this_dir="$( cd "$( dirname "${BASH_SOURCE[0]}"  )" >/dev/null 2>&1 && pwd )"
occlum_dir="$( cd "$( dirname "$this_dir/../../../"  )" >/dev/null 2>&1 && pwd )"

working_dir=`pwd`
context_dir="$working_dir/.occlum"

SGX_SDK="${SGX_SDK:-/opt/intel/sgxsdk}"
ENCLAVE_SIGN_TOOL="$SGX_SDK/bin/x64/sgx_sign"
ENCLAVE_SIGN_KEY="$occlum_dir/etc/template/Enclave.pem"

exit_error() {
    echo "Error: $@" >&2
    exit 1
}

report_arg_error() {
    echo $1 >&2
    echo ""
    echo "Usage:"
    echo "    occlum init"
    echo "    occlum build [--sign-key <key_path>] [--sign-tool <tool_path>]"
    echo "    occlum run <program_name> <program_args>"
    echo ""
    echo "    Run enclave in sgx release mode:"
    echo "        OCCLUM_RELEASE_ENCLAVE=1 occlum run <program_name> <program_args>"
}

get_conf_default_stack_size() {
    cat "$working_dir/Occlum.json" | \
        python -c "import sys, json; print json.load(sys.stdin)['process']['default_stack_size']"
}

get_conf_default_heap_size() {
    cat "$working_dir/Occlum.json" | \
        python -c "import sys, json; print json.load(sys.stdin)['process']['default_heap_size']"
}

get_conf_default_mmap_size() {
    cat "$working_dir/Occlum.json" | \
        python -c "import sys, json; print json.load(sys.stdin)['process']['default_mmap_size']"
}

get_conf_user_space_size() {
    cat "$working_dir/Occlum.json" | \
        python -c "import sys, json; print json.load(sys.stdin)['vm']['user_space_size']"
}

get_conf_env() {
    cat "$working_dir/Occlum.json" | \
        python -c "import sys, json; print json.dumps(json.load(sys.stdin)['env'])"
}

get_conf_entry_points() {
    cat "$working_dir/Occlum.json" | \
        python -c "import sys, json; print json.dumps(json.load(sys.stdin)['entry_points'])"
}

get_occlum_conf_file_mac() {
    "$occlum_dir/build/bin/occlum-protect-integrity" show-mac "$context_dir/build/Occlum.json.protected"
}

parse_occlum_user_space_size() {
    local size_with_unit=`get_conf_user_space_size`
    numfmt --from=iec ${size_with_unit::-1}
}


cmd_init() {
    cd "$working_dir"
    mkdir -p .occlum
    cd "$context_dir"
    echo "initialized" > status

    cd "$working_dir"
    mkdir -p image
    mkdir -p image/bin
    mkdir -p image/lib
    mkdir -p image/root
    mkdir -p image/host
    mkdir -p image/tmp

    local occlum_gcc_lib=/usr/local/occlum/x86_64-linux-musl/lib
    cp -t image/lib/ \
        /lib/ld-musl-x86_64.so.1 \
        "$occlum_gcc_lib/libc.so" \
        "$occlum_gcc_lib/libstdc++.so.6" \
        "$occlum_gcc_lib/libgcc_s.so.1" \
        "$occlum_gcc_lib/libgomp.so.1"

    cp "$occlum_dir"/etc/template/Enclave.xml "$working_dir"/
    cp "$occlum_dir"/etc/template/Occlum.json "$working_dir"/
    chmod 644 "$working_dir"/Enclave.xml
    chmod 644 "$working_dir"/Occlum.json

    echo "Initialized an Occlum context in $working_dir"
}

cmd_build() {
    cd "$context_dir"
    echo "building" > status

    rm -rf build

    mkdir -p build/bin
    cp "$occlum_dir/build/bin/occlum-pal" build/bin/
    mkdir -p build/lib
    cp "$occlum_dir/build/lib/libocclum_core.a" build/lib/
    cp "$occlum_dir/build/lib/libcompiler-rt-patch.a" build/lib/
    mkdir -p build/src/libos/src/builtin

    chmod 531 -R $working_dir/image/bin
    chmod 531 -R $working_dir/image/lib
    mkdir -p build/mount/
    cd "$occlum_dir/deps/sefs/sefs-fuse/bin/" && \
        ./app \
            --integrity-only \
            "$context_dir/build/mount/__ROOT" \
            "$working_dir/image" \
            zip

    export OCCLUM_CONF_ROOT_FS_MAC=`"$occlum_dir/build/bin/occlum-protect-integrity" show-mac "$context_dir/build/mount/__ROOT/metadata"`
    export OCCLUM_CONF_USER_SPACE_SIZE=`get_conf_user_space_size`
    export OCCLUM_CONF_DEFAULT_STACK_SIZE=`get_conf_default_stack_size`
    export OCCLUM_CONF_DEFAULT_HEAP_SIZE=`get_conf_default_heap_size`
    export OCCLUM_CONF_DEFAULT_MMAP_SIZE=`get_conf_default_mmap_size`
    export OCCLUM_CONF_ENV=`get_conf_env`
    export OCCLUM_CONF_ENTRY_POINTS=`get_conf_entry_points`
    cd "$context_dir/build"
    "$occlum_dir/build/bin/occlum-gen-default-occlum-json"\
        > "Occlum.json"
    "$occlum_dir/build/bin/occlum-protect-integrity" protect Occlum.json

    export OCCLUM_BUILTIN_CONF_FILE_MAC=`get_occlum_conf_file_mac`
    echo "EXPORT => OCCLUM_BUILTIN_CONF_FILE_MAC = $OCCLUM_BUILTIN_CONF_FILE_MAC"
    export OCCLUM_BUILTIN_VM_USER_SPACE_SIZE=`parse_occlum_user_space_size`
    echo "EXPORT => OCCLUM_BUILTIN_VM_USER_SPACE_SIZE = $OCCLUM_BUILTIN_VM_USER_SPACE_SIZE"

    cd "$context_dir"
    mkdir -p src/libos/src/
    cp "$occlum_dir/src/sgxenv.mk" src/
    cp "$occlum_dir/src/libos/Makefile" src/libos/
    cp "$occlum_dir/src/libos/Enclave.lds" src/libos/
    cp -r "$occlum_dir/src/libos/src/builtin" src/libos/src/builtin
    cd src/libos && \
        make clean-builtin && \
        make "$context_dir/build/lib/libocclum.so" ONLY_REBUILD_BUILTIN=1
    while [ -n "$1" ]; do
        case "$1" in
        --sign-key)     [ -n "$2" ] && ENCLAVE_SIGN_KEY=$2 ; shift 2 || exit_error "empty signing key path"     ;;
        --sign-tool)    [ -n "$2" ] && ENCLAVE_SIGN_TOOL=$2 ; shift 2 || exit_error "empty signing tool path"   ;;
        *) exit_error "Unknown option: $1"                                                                      ;;
        esac
    done
    [ -e "$ENCLAVE_SIGN_KEY" ] || exit_error "invalid signing key path: $ENCLAVE_SIGN_KEY"
    [ -e "$ENCLAVE_SIGN_TOOL" ] || exit_error "invalid signing tool path: $ENCLAVE_SIGN_TOOL"
    echo "Enclave sign-tool: $ENCLAVE_SIGN_TOOL"
    echo "Enclave sign-key: $ENCLAVE_SIGN_KEY"
    $ENCLAVE_SIGN_TOOL sign \
        -key $ENCLAVE_SIGN_KEY \
        -config "$working_dir/Enclave.xml" \
        -enclave "$context_dir/build/lib/libocclum.so" \
        -out "$context_dir/build/lib/libocclum.signed.so"
    cd "$context_dir"
    echo "built" > status

    echo "Built the Occlum image and enclave successfully"
}

cmd_run() {
    cd "$working_dir"
    echo "running" > "$context_dir/status"

    mkdir -p "$context_dir/run/mount/root"
    RUST_BACKTRACE=1 "$context_dir/build/bin/occlum-pal" "$@"

    echo "built" > "$context_dir/status"
}

cmd_status() {
    cat "$context_dir/status"
}

set -e

if [[ ( "$#" < 1 ) ]] ; then
    report_arg_error "Error: no sub-command is given"
    exit 1
fi

cmd=$1
case "$cmd" in
    init)
        cmd_init
        ;;
    build)
        cmd_build "${@:2}"
        ;;
    run)
        cmd_run "${@:2}"
        ;;
    status)
        cmd_status
        ;;
    *)
        report_arg_error "Error: unknown sub-command $cmd"
        exit 1
esac