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