From d20b59f5b32fec29809795ac18b615cd0bac9798 Mon Sep 17 00:00:00 2001
From: V3n3RiX <venerix@redcorelinux.org>
Date: Wed, 11 Oct 2017 19:02:18 +0100
Subject: day 2 : makepkg functions split complete

---
 src/backend/jailfuncs.sh | 113 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 113 insertions(+)
 create mode 100644 src/backend/jailfuncs.sh

(limited to 'src/backend/jailfuncs.sh')

diff --git a/src/backend/jailfuncs.sh b/src/backend/jailfuncs.sh
new file mode 100644
index 0000000..37b382b
--- /dev/null
+++ b/src/backend/jailfuncs.sh
@@ -0,0 +1,113 @@
+#!/usr/bin/env bash
+
+checkifroot () {
+	if [[ "$(whoami)" != root ]] ; then
+		eerror "I won't do that, unless you're root!"
+		exit 1
+	fi
+}
+
+checkkerncfg () {
+	if [[ $(zgrep 'CONFIG_OVERLAY_FS=' /proc/config.gz) && $(zgrep "CONFIG_SQUASHFS=" /proc/config.gz) &&  $(zgrep "CONFIG_BLK_DEV_LOOP=" /proc/config.gz) ]] ; then
+		einfo "Kernel config OK, moving on"
+	else
+		eerror "I won't do that with the current kernel"
+		eerror "I want a kernel with OVERLAYFS && SQUASHFS && LOOP DEVICES enabled"
+		exit 1
+	fi
+}
+
+checkiflive () {
+	if [[ -L /dev/mapper/live-base ]] ; then
+		eerror "I won't do that on a live system"
+		exit 1
+	fi
+}
+
+checkjailsum () {
+	if [[ -f "$jailx64" && -f "$jailx64sum" ]] ; then
+		if [[ "$(md5sum -c "$jailx64sum")" ]] ; then
+			einfo "Jail integrity OK, moving on"
+		else
+			eerror "I won't do that with a corrupted jail"
+			exit 1
+		fi
+	else
+		eerror "I won't do that with a missing jail"
+		exit 1
+	fi
+}
+
+jaildkmsbuild () {
+	checkifroot
+	if [[ -x /usr/sbin/dkms ]] ; then
+		for i in $(dkms status | cut -d " " -f1,2 | sed -e 's/,//g' | sed -e 's/ /\//g' | sed -e 's/://g') ; do
+			dkms install $i
+		done
+	fi
+}
+
+jailpkgprep () {
+	while : true ; do
+		if [[ ! -d "$ropath" && ! -d "$rwpath" && ! -d "$workpath" && ! -d "$overlaypath" ]] ; then
+			for i in "$ropath" "$rwpath" "$workpath" "$overlaypath" ; do
+				mkdir "$i"
+			done
+			jailpkgmnt
+			break
+		elif [[ -d "$ropath" && -d "$rwdpath" && -d "$workpath" && -d "$overlaypath" ]] ; then
+			jailpkgdmnt
+			for i in "$ropath" "$rwpath" "$workpath" "$overlaypath" ; do
+				rm -rf "$i"
+			done
+			continue
+		fi
+	done
+}
+
+jailpkgmnt () {
+	mount -t squashfs "$jailx64" "$ropath"
+	mount -t overlay -o lowerdir="$ropath",upperdir="$rwpath",workdir="$workpath" overlay "$overlaypath"
+	mount -o bind packages "$overlaypath"/var/cache/packages
+	mount -o bind distfiles "$overlaypath"/var/cache/distfiles
+	mount -t proc proc "$overlaypath"/proc
+	mount -t sysfs sysfs "$overlaypath"/sys
+	mount -t devtmpfs -o relatime,size=3055348k,nr_inodes=763837,mode=755 none "$overlaypath"/dev
+	mount -t devpts -o nosuid,noexec,relatime,gid=5,mode=620 none "$overlaypath"/dev/pts
+	mount -t tmpfs -o nosuid,nodev none "$overlaypath"/dev/shm
+}
+
+jailpkgdmnt () {
+	umount -l "$overlaypath"/proc > /dev/null 2>&1
+	umount -l "$overlaypath"/sys > /dev/null 2>&1
+	umount -l "$overlaypath"/dev/pts > /dev/null 2>&1
+	umount -l "$overlaypath"/dev/shm > /dev/null 2>&1
+	umount -l "$overlaypath"/dev > /dev/null 2>&1
+	umount -l "$overlaypath"/var/cache/packages > /dev/null 2>&1
+	umount -l "$overlaypath"/var/cache/distfiles > /dev/null 2>&1
+	umount -l "$overlaypath" > /dev/null 2>&1
+	umount -l "$ropath" > /dev/null 2>&1
+}
+
+jailpkgsrcmode () {
+	chroot "$overlaypath" su - "$jailuser" -c "$jailsrcmodecmd"
+}
+
+jailpkgbuild () {
+	chroot "$overlaypath" su - "$jailuser" -c "$jailportagecmd"
+}
+
+jailpkgstart () {
+	einfo "Oh no, I'm in jail!"
+	chroot "$overlaypath" su - "$jailuser"
+}
+
+jailmakepkg () {
+	checkifroot
+	checkjailsum
+	jailpkgprep
+	jailpkgsrcmode
+	jailpkgbuild
+	jailpkgstart
+	jailpkgdmnt
+}
-- 
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