spdm-emu: add recipe for SPDM emulator

SPDM emulator implementation based on libspdm.
It provides requester and responder tools used for
testing SPDM protocol communication.

Upstream: https://github.com/DMTF/spdm-emu

Signed-off-by: Jino Abraham <jinoabraham26@gmail.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-oe/recipes-security/spdm-emu/spdm-emu_git.bb

@@ -0,0 +1,75 @@
+SUMMARY = "SPDM Emulator"
+DESCRIPTION = "Sample SPDM emulator implementation using libspdm \
+for testing SPDM communication."
+HOMEPAGE = "https://github.com/DMTF/spdm-emu"
+
+LICENSE = "BSD-3-Clause"
+LIC_FILES_CHKSUM = "file://LICENSE.md;md5=ed4cfe4688e1ac2cc2e6748766571949"
+
+SRC_URI = "gitsm://github.com/DMTF/spdm-emu;protocol=https;branch=main"
+
+SRCREV = "5fca359b15e4edd4f070ca83c9da02799b6f78ae"
+inherit cmake pkgconfig systemd
+
+DEPENDS = "openssl"
+PACKAGECONFIG ??= "${@bb.utils.filter('DISTRO_FEATURES', 'systemd', d)}"
+PACKAGECONFIG[systemd] = "-DENABLE_SYSTEMD=ON,-DENABLE_SYSTEMD=OFF,systemd"
+
+SYSTEMD_SERVICE:${PN} = "spdm-responder-emu.service"
+
+def get_spdm_multiarch(d):
+    target_arch = d.getVar('TARGET_ARCH')
+    multiarch_options = {
+        "x86_64":  "x64",
+        "i586":    "ia32",
+        "i686":    "ia32",
+        "arm":     "arm",
+        "aarch64": "aarch64",
+        "riscv32": "riscv32",
+        "riscv64": "riscv64",
+        "ppc64le": "ppc64le",
+    }
+
+    if target_arch in multiarch_options:
+        return multiarch_options[target_arch]
+
+    bb.fatal("unsupported architecture '%s'" % target_arch)
+
+EXTRA_OECMAKE += "\
+    -DARCH=${@get_spdm_multiarch(d)} \
+    -DTOOLCHAIN=NONE \
+    -DTARGET=Release \
+    -DCRYPTO=openssl \
+    -DENABLE_BINARY_BUILD=1 \
+    -DCOMPILED_LIBCRYPTO_PATH=${libdir} \
+    -DCOMPILED_LIBSSL_PATH=${libdir} \
+"
+
+OECMAKE_TARGET_COMPILE += " copy_sample_key"
+
+do_install:append() {
+    # Install binaries to /usr/bin
+    install -d ${D}${bindir}
+    install -m 0755 ${B}/bin/spdm_requester_emu ${D}${bindir}/
+    install -m 0755 ${B}/bin/spdm_responder_emu ${D}${bindir}/
+    install -m 0755 ${B}/bin/spdm_device_attester_sample ${D}${bindir}/
+    install -m 0755 ${B}/bin/spdm_device_validator_sample ${D}${bindir}/
+
+    # Install certificates/keys to /usr/share/spdm-emu
+    install -d ${D}${datadir}/spdm-emu
+    for f in ${B}/bin/*; do
+        case "$(basename $f)" in
+            spdm_requester_emu|spdm_responder_emu|spdm_device_attester_sample|spdm_device_validator_sample)
+                ;;
+            *)
+                if [ -d "$f" ]; then
+                    cp -r --no-preserve=ownership $f ${D}${datadir}/spdm-emu/
+                else
+                    install -m 0644 $f ${D}${datadir}/spdm-emu/
+                fi
+                ;;
+        esac
+    done
+}
+
+FILES:${PN} += "${datadir}/spdm-emu"