From 049d80ae0e2b5f6370411207ed27fe423f5ff451 Mon Sep 17 00:00:00 2001
From: PS <p@0x53.net>
Date: Sun, 1 Feb 2026 12:10:12 +0100
Subject: version 0.1.0.0

---
 src/bin/mddc-add-block-sym | 80 ++++++++++++++++++++++++++++++++++++++++++++++
 src/bin/mddc-del-block-sym | 14 ++++++++
 src/lib/etc/mdev.conf      | 32 +++++++++++++++++++
 3 files changed, 126 insertions(+)
 create mode 100755 src/bin/mddc-add-block-sym
 create mode 100755 src/bin/mddc-del-block-sym
 create mode 100644 src/lib/etc/mdev.conf

(limited to 'src')

diff --git a/src/bin/mddc-add-block-sym b/src/bin/mddc-add-block-sym
new file mode 100755
index 0000000..7ee1eca
--- /dev/null
+++ b/src/bin/mddc-add-block-sym
@@ -0,0 +1,80 @@
+#!@shebangdir@/execlineb -P
+
+importas -Si MDEV
+
+if -x0 { eltest -d /sys/block/${MDEV} }
+
+#skip cryptsetup nodes
+if -nx0 { eltest ${MDEV} =~ dm-[0-9] }
+
+background { mkdir -p /dev/disk/by-diskseq }
+background { mkdir -p /dev/disk/by-partuuid }
+background { mkdir -p /dev/disk/by-uuid }
+background { mkdir -p /dev/disk/by-id }
+#background { mkdir -p /dev/disk/by-path }
+
+backtick -Ei DISKSEQ { cat /sys/block/${MDEV}/diskseq }
+background { ln -sf ../../${MDEV} /dev/disk/by-diskseq/${DISKSEQ} }
+
+pipeline { if { eltest -e /sys/block/${MDEV}/device/model } cat /sys/block/${MDEV}/device/model }
+pipeline { sed -e s/\ *$// -e s/\ /_/g }
+withstdinas -ED "" MODEL
+pipeline { if { eltest -e /sys/block/${MDEV}/device/serial } cat /sys/block/${MDEV}/device/serial }
+pipeline { sed -e s/\ *$// -e s/\ /_/g -e s/^/_/g }
+withstdinas -ED "" SERIAL
+background { if { eltest "${MODEL}${SERIAL}" }
+		ln -sf ../../${MDEV} /dev/disk/by-id/${MODEL}${SERIAL}
+}
+
+execline-cd /sys/block/${MDEV}
+
+elglob -0d "" PARTS ${MDEV}*
+if { eltest ${PARTS} }
+define -sd "" SPARTS ${PARTS}
+forx -pE PART { ${SPARTS} }
+	# by-partuuid
+	background {
+		pipeline { grep -- ^PARTUUID= ${PART}/uevent }
+		pipeline { sed -e s/PARTUUID=// }
+		withstdinas -E PARTUUID
+		ln -sf ../../${PART} /dev/disk/by-partuuid/${PARTUUID}
+	}
+	# by-diskseq, by-id
+	background {
+		backtick -Ei PARTN { cat ${PART}/partition }
+		background { ln -sf ../../${PART} /dev/disk/by-diskseq/${DISKSEQ}-part${PARTN} }
+		if { eltest "${MODEL}${SERIAL}" }
+			ln -sf ../../${PART} /dev/disk/by-id/${MODEL}${SERIAL}-part${PARTN}
+	}
+	# only if blkid exists
+	if { redirfd -w 1 /dev/null tryexec { blkid } exit 1 }
+	# by-uuid
+	background {
+		if {
+			pipeline { blkid /dev/${PART} }
+			pipeline { grep " UUID" }
+			pipeline {
+				sed
+					-e s/^.*\ UUID=\"//
+					-e s/\".*//
+			}
+			withstdinas -E UUID
+			if { eltest ${UUID} }
+			ln -sf ../../${PART} /dev/disk/by-uuid/${UUID}
+		}
+	}
+	# by-label
+	background {
+		if {
+			pipeline { blkid /dev/${PART} }
+			pipeline { grep " LABEL" }
+			pipeline {
+				sed
+					-e s/^.*\ LABEL=\"//
+					-e s/\".*//
+			}
+			withstdinas -E LABEL
+			if { eltest ${LABEL} }
+			ln -sf ../../${PART} /dev/disk/by-label/${LABEL}
+		}
+	}
diff --git a/src/bin/mddc-del-block-sym b/src/bin/mddc-del-block-sym
new file mode 100755
index 0000000..caa4ce9
--- /dev/null
+++ b/src/bin/mddc-del-block-sym
@@ -0,0 +1,14 @@
+#!@shebangdir@/execlineb -P
+
+importas -Si MDEV
+
+if -x0 { eltest -d /sys/block/${MDEV} }
+if -x0 { eltest -d /dev/disk }
+
+pipeline { ls -1 /dev/disk }
+forstdin -pE TYPE
+	pipeline { ls -1 /dev/disk/${TYPE} }
+	forstdin -pE SYM
+		backtick -E RPATH { realpath /dev/disk/${TYPE}/${SYM} }
+		if { eltest ${RPATH} =~ /dev/${MDEV}.* }
+			rm -f /dev/disk/${TYPE}/${SYM}
diff --git a/src/lib/etc/mdev.conf b/src/lib/etc/mdev.conf
new file mode 100644
index 0000000..cb71b25
--- /dev/null
+++ b/src/lib/etc/mdev.conf
@@ -0,0 +1,32 @@
+# mdevd-conf
+# null, zero may already exist; therefore ownership has to be changed with command
+null						root:root		666 +importas -S MDEV chmod 666 $MDEV
+zero						root:root		666 +importas -S MDEV chmod 666 $MDEV
+urandom						root:root		666
+random						root:root		666
+full						root:root		666
+fuse						root:root		666
+
+# console may already exist; therefore ownership has to be changed with command
+console						root:tty		600 +importas -S MDEV chmod 600 $MDEV
+tty							root:tty 		666
+ttyS.*						root:dialout 	660
+tty.*						root:tty 		620
+ptmx						root:tty 		666
+
+snd/.*						root:audio		660
+
+uinput						root:input		660
+input/.*					root:input		660
+bus/usb/.*/.*				root:usb		660
+
+mem							root:kmem		640
+kmem						root:kmem		640
+port						root:kmem		640
+
+dri/card.*					root:video		660
+dri/render.*				root:render		666
+
+kfd							root:render 	666
+-SUBSYSTEM=block;.*			root:disk		660 +mddc-add-block-sym
+SUBSYSTEM=block;.*			root:disk		660 -mddc-del-block-sym
-- 
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