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Raspi2-3_GenImage
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1 #!/bin/sh
1 #!/bin/sh
2 # Setup fstab and initramfs
2 # Setup fstab and initramfs
3 #
3 #
4
4
5 # Load utility functions
5 # Load utility functions
6 . ./functions.sh
6 . ./functions.sh
7
7
8 # Install and setup fstab
8 # Install and setup fstab
9 install_readonly files/mount/fstab "${ETC_DIR}/fstab"
9 install_readonly files/mount/fstab "${ETC_DIR}/fstab"
10
10
11 # Add usb/sda disk root partition to fstab
11 # Add usb/sda disk root partition to fstab
12 if [ "$ENABLE_SPLITFS" = true ] && [ "$ENABLE_CRYPTFS" = false ] ; then
12 if [ "$ENABLE_SPLITFS" = true ] && [ "$ENABLE_CRYPTFS" = false ] ; then
13 sed -i "s/mmcblk0p2/sda1/" "${ETC_DIR}/fstab"
13 sed -i "s/mmcblk0p2/sda1/" "${ETC_DIR}/fstab"
14 fi
14 fi
15
15
16 if [ "$ENABLE_USBBOOT" = true ] ; then
16 if [ "$ENABLE_USBBOOT" = true ] ; then
17 sed -i "s/mmcblk0p1/sda1/" "${ETC_DIR}/fstab"
17 sed -i "s/mmcblk0p1/sda1/" "${ETC_DIR}/fstab"
18 sed -i "s/mmcblk0p2/sda2/" "${ETC_DIR}/fstab"
18 sed -i "s/mmcblk0p2/sda2/" "${ETC_DIR}/fstab"
19 fi
19 fi
20
20
21 # Generate initramfs file
21 # Generate initramfs file
22 if [ "$ENABLE_INITRAMFS" = true ] ; then
22 if [ "$ENABLE_INITRAMFS" = true ] ; then
23 if [ "$ENABLE_CRYPTFS" = true ] ; then
23 if [ "$ENABLE_CRYPTFS" = true ] ; then
24 if [ "$ENABLE_USBBOOT" = true ] ; then
24 if [ "$ENABLE_USBBOOT" = true ] ; then
25 # Add usb/sda2 disk to crypttab
25 # Add usb/sda2 disk to crypttab
26 sed -i "s/mmcblk0p2/sda2/" "${ETC_DIR}/crypttab"
26 sed -i "s/mmcblk0p2/sda2/" "${ETC_DIR}/crypttab"
27 fi
27 fi
28
28
29 # Include initramfs scripts to auto expand encrypted root partition
29 # Include initramfs scripts to auto expand encrypted root partition
30 if [ "$EXPANDROOT" = true ] ; then
30 if [ "$EXPANDROOT" = true ] ; then
31 install_exec files/initramfs/expand_encrypted_rootfs "${ETC_DIR}/initramfs-tools/scripts/init-premount/expand_encrypted_rootfs"
31 install_exec files/initramfs/expand_encrypted_rootfs "${ETC_DIR}/initramfs-tools/scripts/init-premount/expand_encrypted_rootfs"
32 install_exec files/initramfs/expand-premount "${ETC_DIR}/initramfs-tools/scripts/local-premount/expand-premount"
32 install_exec files/initramfs/expand-premount "${ETC_DIR}/initramfs-tools/scripts/local-premount/expand-premount"
33 install_exec files/initramfs/expand-tools "${ETC_DIR}/initramfs-tools/hooks/expand-tools"
33 install_exec files/initramfs/expand-tools "${ETC_DIR}/initramfs-tools/hooks/expand-tools"
34 fi
34 fi
35
35
36 # Replace fstab root partition with encrypted partition mapping
36 # Replace fstab root partition with encrypted partition mapping
37 sed -i "s/mmcblk0p2/mapper\/${CRYPTFS_MAPPING}/" "${ETC_DIR}/fstab"
37 sed -i "s/mmcblk0p2/mapper\/${CRYPTFS_MAPPING}/" "${ETC_DIR}/fstab"
38
38
39 # Add encrypted partition to crypttab and fstab
39 # Add encrypted partition to crypttab and fstab
40 install_readonly files/mount/crypttab "${ETC_DIR}/crypttab"
40 install_readonly files/mount/crypttab "${ETC_DIR}/crypttab"
41 echo "${CRYPTFS_MAPPING} /dev/mmcblk0p2 none luks,initramfs" >> "${ETC_DIR}/crypttab"
41 echo "${CRYPTFS_MAPPING} /dev/mmcblk0p2 none luks,initramfs" >> "${ETC_DIR}/crypttab"
42
42
43 # Add encrypted root partition to fstab and crypttab
43 # Add encrypted root partition to fstab and crypttab
44 if [ "$ENABLE_SPLITFS" = true ] ; then
44 if [ "$ENABLE_SPLITFS" = true ] ; then
45 # Add usb/sda1 disk to crypttab
45 # Add usb/sda1 disk to crypttab
46 sed -i "s/mmcblk0p2/sda1/" "${ETC_DIR}/crypttab"
46 sed -i "s/mmcblk0p2/sda1/" "${ETC_DIR}/crypttab"
47 fi
47 fi
48
48
49 if [ "$CRYPTFS_DROPBEAR" = true ]; then
49 if [ "$CRYPTFS_DROPBEAR" = true ]; then
50 if [ "$ENABLE_DHCP" = false ] ; then
50 if [ "$ENABLE_DHCP" = false ] ; then
51 # Get cdir from NET_ADDRESS e.g. 24
51 # Get cdir from NET_ADDRESS e.g. 24
52 cdir=$(printf "%s" "${NET_ADDRESS}" | cut -d '/' -f2)
52 cdir=$(printf "%s" "${NET_ADDRESS}" | cut -d '/' -f2)
53
53
54 # Convert cdir ro netmask e.g. 24 to 255.255.255.0
54 # Convert cdir ro netmask e.g. 24 to 255.255.255.0
55 NET_MASK=$(cdr2mask "$cdir")
55 NET_MASK=$(cdr2mask "$cdir")
56
56
57 # Write static ip settings to "${ETC_DIR}"/initramfs-tools/initramfs.conf
57 # Write static ip settings to "${ETC_DIR}"/initramfs-tools/initramfs.conf
58 sed -i "\$aIP=${NET_ADDRESS}::${NET_GATEWAY}:${NET_MASK}:${HOSTNAME}:" "${ETC_DIR}"/initramfs-tools/initramfs.conf
58 sed -i "\$aIP=${NET_ADDRESS}::${NET_GATEWAY}:${NET_MASK}:${HOSTNAME}:" "${ETC_DIR}"/initramfs-tools/initramfs.conf
59
59
60 #Regenerate initramfs
60 #Regenerate initramfs
61 chroot_exec mkinitramfs -o "/boot/firmware/initramfs-${KERNEL_VERSION}" "${KERNEL_VERSION}"
61 chroot_exec mkinitramfs -o "/boot/firmware/initramfs-${KERNEL_VERSION}" "${KERNEL_VERSION}"
62 fi
62 fi
63
63
64 if [ -n "$CRYPTFS_DROPBEAR_PUBKEY" ] && [ -f "$CRYPTFS_DROPBEAR_PUBKEY" ] ; then
64 if [ -n "$CRYPTFS_DROPBEAR_PUBKEY" ] && [ -f "$CRYPTFS_DROPBEAR_PUBKEY" ] ; then
65 install_readonly "${CRYPTFS_DROPBEAR_PUBKEY}" "${ETC_DIR}"/dropbear-initramfs/id_rsa.pub
65 install_readonly "${CRYPTFS_DROPBEAR_PUBKEY}" "${ETC_DIR}"/dropbear-initramfs/id_rsa.pub
66 cat "${ETC_DIR}"/dropbear-initramfs/id_rsa.pub >> "${ETC_DIR}"/dropbear-initramfs/authorized_keys
66 cat "${ETC_DIR}"/dropbear-initramfs/id_rsa.pub >> "${ETC_DIR}"/dropbear-initramfs/authorized_keys
67 else
67 else
68 # Create key
68 # Create key
69 chroot_exec /usr/bin/dropbearkey -t rsa -f /etc/dropbear-initramfs/id_rsa.dropbear
69 chroot_exec /usr/bin/dropbearkey -t rsa -f /etc/dropbear-initramfs/id_rsa.dropbear
70
70
71 # Convert dropbear key to openssh key
71 # Convert dropbear key to openssh key
72 chroot_exec /usr/lib/dropbear/dropbearconvert dropbear openssh /etc/dropbear-initramfs/id_rsa.dropbear /etc/dropbear-initramfs/id_rsa
72 chroot_exec /usr/lib/dropbear/dropbearconvert dropbear openssh /etc/dropbear-initramfs/id_rsa.dropbear /etc/dropbear-initramfs/id_rsa
73
73
74 # Get Public Key Part
74 # Get Public Key Part
75 chroot_exec /usr/bin/dropbearkey -y -f /etc/dropbear-initramfs/id_rsa.dropbear | chroot_exec tee /etc/dropbear-initramfs/id_rsa.pub
75 chroot_exec /usr/bin/dropbearkey -y -f /etc/dropbear-initramfs/id_rsa.dropbear | chroot_exec tee /etc/dropbear-initramfs/id_rsa.pub
76
76
77 # Delete unwanted lines
77 # Delete unwanted lines
78 sed -i '/Public/d' "${ETC_DIR}"/dropbear-initramfs/id_rsa.pub
78 sed -i '/Public/d' "${ETC_DIR}"/dropbear-initramfs/id_rsa.pub
79 sed -i '/Fingerprint/d' "${ETC_DIR}"/dropbear-initramfs/id_rsa.pub
79 sed -i '/Fingerprint/d' "${ETC_DIR}"/dropbear-initramfs/id_rsa.pub
80
80
81 # Trust the new key
81 # Trust the new key
82 cat "${ETC_DIR}"/dropbear-initramfs/id_rsa.pub > "${ETC_DIR}"/dropbear-initramfs/authorized_keys
82 cat "${ETC_DIR}"/dropbear-initramfs/id_rsa.pub > "${ETC_DIR}"/dropbear-initramfs/authorized_keys
83
83
84 # Save Keys - convert with putty from rsa/openssh to puttkey
84 # Save Keys - convert with putty from rsa/openssh to puttkey
85 cp -f "${ETC_DIR}"/dropbear-initramfs/id_rsa "${BASEDIR}"/dropbear_initramfs_key.rsa
85 cp -f "${ETC_DIR}"/dropbear-initramfs/id_rsa "${BASEDIR}"/dropbear_initramfs_key.rsa
86
86
87 # Get unlock script
87 # Get unlock script
88 install_exec files/initramfs/crypt_unlock.sh "${ETC_DIR}"/initramfs-tools/hooks/crypt_unlock.sh
88 install_exec files/initramfs/crypt_unlock.sh "${ETC_DIR}"/initramfs-tools/hooks/crypt_unlock.sh
89
89
90 # Enable Dropbear inside initramfs
90 # Enable Dropbear inside initramfs
91 printf "#\n# DROPBEAR: [ y | n ]\n#\n\nDROPBEAR=y\n" >> "${ETC_DIR}/initramfs-tools/initramfs.conf"
91 printf "#\n# DROPBEAR: [ y | n ]\n#\n\nDROPBEAR=y\n" >> "${ETC_DIR}/initramfs-tools/initramfs.conf"
92
92
93 # Enable Dropbear inside initramfs
93 # Enable Dropbear inside initramfs
94 sed -i "54 i sleep 5" "${R}"/usr/share/initramfs-tools/scripts/init-premount/dropbear
94 sed -i "54 i sleep 5" "${R}"/usr/share/initramfs-tools/scripts/init-premount/dropbear
95 fi
95 fi
96 # CRYPTFSDROPBEAR=false
96 # CRYPTFSDROPBEAR=false
97 else
97 else
98 # Disable SSHD inside initramfs
98 # Disable SSHD inside initramfs
99 printf "#\n# DROPBEAR: [ y | n ]\n#\n\nDROPBEAR=n\n" >> "${ETC_DIR}/initramfs-tools/initramfs.conf"
99 printf "#\n# DROPBEAR: [ y | n ]\n#\n\nDROPBEAR=n\n" >> "${ETC_DIR}/initramfs-tools/initramfs.conf"
100 fi
100 fi
101
101
102 # Add cryptsetup modules to initramfs
102 # Add cryptsetup modules to initramfs
103 printf "#\n# CRYPTSETUP: [ y | n ]\n#\n\nCRYPTSETUP=y\n" >> "${ETC_DIR}/initramfs-tools/conf-hook"
103 printf "#\n# CRYPTSETUP: [ y | n ]\n#\n\nCRYPTSETUP=y\n" >> "${ETC_DIR}/initramfs-tools/conf-hook"
104
104
105 # Dummy mapping required by mkinitramfs
105 # Dummy mapping required by mkinitramfs
106 echo "0 1 crypt $(echo "${CRYPTFS_CIPHER}" | cut -d ':' -f 1) ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff 0 7:0 4096" | chroot_exec dmsetup --verbose create "${CRYPTFS_MAPPING}"
106 echo "0 1 crypt $(echo "${CRYPTFS_CIPHER}" | cut -d ':' -f 1) ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff 0 7:0 4096" | chroot_exec dmsetup create "${CRYPTFS_MAPPING}"
107
107
108 # Generate initramfs with encrypted root partition support
108 # Generate initramfs with encrypted root partition support
109 chroot_exec mkinitramfs -o "/boot/firmware/initramfs-${KERNEL_VERSION}" "${KERNEL_VERSION}"
109 chroot_exec mkinitramfs -o "/boot/firmware/initramfs-${KERNEL_VERSION}" "${KERNEL_VERSION}"
110
110
111 # Remove dummy mapping
111 # Remove dummy mapping
112 chroot_exec cryptsetup close "${CRYPTFS_MAPPING}"
112 chroot_exec cryptsetup close "${CRYPTFS_MAPPING}"
113 # CRYPTFS=false
113 # CRYPTFS=false
114 else
114 else
115 # Generate initramfs without encrypted root partition support
115 # Generate initramfs without encrypted root partition support
116 chroot_exec mkinitramfs -o "/boot/firmware/initramfs-${KERNEL_VERSION}" "${KERNEL_VERSION}"
116 chroot_exec mkinitramfs -o "/boot/firmware/initramfs-${KERNEL_VERSION}" "${KERNEL_VERSION}"
117 fi
117 fi
118 fi
118 fi
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