From f735b7e3afc632f806afed408bf68b62789b2a33 Mon Sep 17 00:00:00 2001
From: "Lance R. Vick" <lance@lrvick.net>
Date: Wed, 26 Jun 2024 00:46:56 -0700
Subject: [PATCH] Virtual sd card support

---
 Containerfile                                 | 21 +++++++++++++++++++
 Makefile                                      |  8 +++++++
 .../lib}/udev/rules.d/sdcard-autorun.rules    |  3 ++-
 sdcard/autorun.sh                             |  3 +++
 4 files changed, 34 insertions(+), 1 deletion(-)
 rename rootfs/{etc => usr/lib}/udev/rules.d/sdcard-autorun.rules (81%)
 create mode 100644 sdcard/autorun.sh

diff --git a/Containerfile b/Containerfile
index 7f215b3..3f5b9e0 100644
--- a/Containerfile
+++ b/Containerfile
@@ -20,15 +20,20 @@ FROM stagex/libgpg-error AS libgpg-error
 FROM stagex/libassuan AS libassuan
 FROM stagex/libgcrypt AS libgcrypt
 FROM stagex/jq AS jq
+FROM stagex/yq AS yq
 FROM stagex/bc AS bc
 FROM stagex/git AS git
 FROM stagex/zlib AS zlib
 FROM stagex/tpm2-tools AS tpm2-tools
 FROM stagex/tpm2-tss AS tpm2-tss
 FROM stagex/openssl AS openssl
+FROM stagex/sops AS sops
 FROM stagex/pcsc-lite AS pcsc-lite
 FROM stagex/pcsc-tools AS pcsc-tools
 FROM stagex/flashtools AS flashtools
+FROM stagex/libqrencode AS libqrencode
+FROM stagex/util-linux AS util-linux
+FROM stagex/opensc AS opensc
 
 FROM scratch AS base
 ARG VERSION development
@@ -63,6 +68,7 @@ COPY --from=keyfork . initramfs
 COPY --from=bash . initramfs
 COPY --from=gpg . initramfs
 COPY --from=jq . initramfs
+COPY --from=yq . initramfs
 COPY --from=bc . initramfs
 COPY --from=git . initramfs
 COPY --from=flashtools . initramfs
@@ -74,6 +80,10 @@ COPY --from=ccid . initramfs
 COPY --from=pcsc-lite . initramfs
 COPY --from=pcsc-tools . initramfs
 COPY --from=openpgp-card-tools . initramfs
+COPY --from=libqrencode . initramfs
+COPY --from=opensc . initramfs
+COPY --from=util-linux . initramfs
+COPY --from=sops . initramfs
 COPY rootfs/ initramfs
 COPY <<-EOF initramfs/etc/environment
     export VERSION="$VERSION"
@@ -154,6 +164,17 @@ RUN xorrisofs \
     -follow-links \
    iso/
 
+## Minimal Autorun SD card image
+COPY sdcard sdcard
+RUN <<-EOF
+    set -eux
+    dd if=/dev/zero of=sdcard.img bs=1M count=32
+    mformat -i sdcard.img ::
+    mcopy -i sdcard.img -s sdcard/* ::
+EOF
+
 FROM scratch AS package
+COPY --from=install /iso /iso
 COPY --from=install /initramfs /initramfs
+COPY --from=install /sdcard.img /
 COPY --from=install /airgap.iso /
diff --git a/Makefile b/Makefile
index f9d39e4..1ca64f8 100644
--- a/Makefile
+++ b/Makefile
@@ -18,6 +18,10 @@ vm-bios: out/airgap.iso
 		-m 4G \
 		-machine pc \
 		-serial stdio \
+		-usb \
+		-device sdhci-pci \
+		-device sd-card,drive=external \
+		-drive id=external,if=none,format=raw,file=out/sdcard.img \
 		-cdrom "out/airgap.iso"
 
 .PHONY: vm-efi
@@ -27,6 +31,10 @@ vm-efi: out/airgap.iso
 		-machine pc \
 		-serial stdio \
 		-bios /usr/share/ovmf/OVMF.fd \
+		-usb \
+		-device sdhci-pci \
+		-device sd-card,drive=external \
+		-drive id=external,if=none,format=raw,file=out/sdcard.img \
 		-cdrom "out/airgap.iso"
 
 out/airgap.iso: Containerfile $(shell git ls-files rootfs)
diff --git a/rootfs/etc/udev/rules.d/sdcard-autorun.rules b/rootfs/usr/lib/udev/rules.d/sdcard-autorun.rules
similarity index 81%
rename from rootfs/etc/udev/rules.d/sdcard-autorun.rules
rename to rootfs/usr/lib/udev/rules.d/sdcard-autorun.rules
index b37ccb5..2b0f41d 100644
--- a/rootfs/etc/udev/rules.d/sdcard-autorun.rules
+++ b/rootfs/usr/lib/udev/rules.d/sdcard-autorun.rules
@@ -1,4 +1,5 @@
-KERNEL!="sd[a-z][0-9]", GOTO="sd_cards_auto_mount_end"
+#KERNEL!="sd[a-z][0-9]", GOTO="sd_cards_auto_mount_end"
+KERNEL!="mmcblk[0-9]p[0-9]|sd[a-z][0-9]", GOTO="sd_cards_auto_mount_end"
 
 # Global mount options
 ACTION=="add", ENV{mount_options}="relatime"
diff --git a/sdcard/autorun.sh b/sdcard/autorun.sh
new file mode 100644
index 0000000..58f8b93
--- /dev/null
+++ b/sdcard/autorun.sh
@@ -0,0 +1,3 @@
+#!/bin/bash
+
+echo "Autorun.sh executed"