##// END OF EJS Templates
Merge pull request #24 from daniell1/bugFix...
drtyhlpr -
r36:015289064dc3 Fusion
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@@ -1,882 +1,882
1 1 #!/bin/sh
2 2
3 3 ########################################################################
4 4 # rpi2-gen-image.sh ver2a 12/2015
5 5 #
6 6 # Advanced debian "jessie" bootstrap script for RPi2
7 7 #
8 8 # This program is free software; you can redistribute it and/or
9 9 # modify it under the terms of the GNU General Public License
10 10 # as published by the Free Software Foundation; either version 2
11 11 # of the License, or (at your option) any later version.
12 12 #
13 13 # some parts based on rpi2-build-image:
14 14 # Copyright (C) 2015 Ryan Finnie <ryan@finnie.org>
15 15 # Copyright (C) 2015 Luca Falavigna <dktrkranz@debian.org>
16 16 ########################################################################
17 17
18 18 # Clean up all temporary mount points
19 19 cleanup (){
20 20 set +x
21 21 set +e
22 22 echo "removing temporary mount points ..."
23 23 umount -l $R/proc 2> /dev/null
24 24 umount -l $R/sys 2> /dev/null
25 25 umount -l $R/dev/pts 2> /dev/null
26 26 umount "$BUILDDIR/mount/boot/firmware" 2> /dev/null
27 27 umount "$BUILDDIR/mount" 2> /dev/null
28 28 losetup -d "$EXT4_LOOP" 2> /dev/null
29 29 losetup -d "$VFAT_LOOP" 2> /dev/null
30 30 trap - 0 1 2 3 6
31 31 }
32 32
33 33 set -e
34 34 set -x
35 35
36 36 # Debian release
37 37 RELEASE=${RELEASE:=jessie}
38 38
39 39 # Build settings
40 40 BASEDIR=./images/${RELEASE}
41 41 BUILDDIR=${BASEDIR}/build
42 42
43 43 # General settings
44 44 HOSTNAME=${HOSTNAME:=rpi2-${RELEASE}}
45 45 PASSWORD=${PASSWORD:=raspberry}
46 46 DEFLOCAL=${DEFLOCAL:="en_US.UTF-8"}
47 47 TIMEZONE=${TIMEZONE:="Europe/Berlin"}
48 48 XKBMODEL=${XKBMODEL:=""}
49 49 XKBLAYOUT=${XKBLAYOUT:=""}
50 50 XKBVARIANT=${XKBVARIANT:=""}
51 51 XKBOPTIONS=${XKBOPTIONS:=""}
52 52
53 53 # APT settings
54 54 APT_PROXY=${APT_PROXY:=""}
55 55 APT_SERVER=${APT_SERVER:="ftp.debian.org"}
56 56
57 57 # Feature settings
58 58 ENABLE_CONSOLE=${ENABLE_CONSOLE:=true}
59 59 ENABLE_IPV6=${ENABLE_IPV6:=true}
60 60 ENABLE_SSHD=${ENABLE_SSHD:=true}
61 61 ENABLE_SOUND=${ENABLE_SOUND:=true}
62 62 ENABLE_DBUS=${ENABLE_DBUS:=true}
63 63 ENABLE_HWRANDOM=${ENABLE_HWRANDOM:=true}
64 64 ENABLE_MINGPU=${ENABLE_MINGPU:=false}
65 65 ENABLE_XORG=${ENABLE_XORG:=false}
66 66 ENABLE_WM=${ENABLE_WM:=""}
67 67
68 68 # Advanced settings
69 69 ENABLE_MINBASE=${ENABLE_MINBASE:=false}
70 70 ENABLE_UBOOT=${ENABLE_UBOOT:=false}
71 71 ENABLE_FBTURBO=${ENABLE_FBTURBO:=false}
72 72 ENABLE_HARDNET=${ENABLE_HARDNET:=false}
73 73 ENABLE_IPTABLES=${ENABLE_IPTABLES:=false}
74 74
75 75 # Image chroot path
76 76 R=${BUILDDIR}/chroot
77 77
78 78 # Packages required for bootstrapping
79 79 REQUIRED_PACKAGES="debootstrap debian-archive-keyring qemu-user-static binfmt-support dosfstools rsync bmap-tools whois git-core"
80 80
81 81 # Missing packages that need to be installed
82 82 MISSING_PACKAGES=""
83 83
84 84 # Packages required in the chroot build environment
85 85 APT_INCLUDES="apt-transport-https,ca-certificates,debian-archive-keyring,dialog,sudo"
86 86
87 87 set +x
88 88
89 89 # Are we running as root?
90 90 if [ "$(id -u)" -ne "0" ] ; then
91 91 echo "this script must be executed with root privileges"
92 92 exit 1
93 93 fi
94 94
95 95 # Check if all required packages are installed
96 96 for package in $REQUIRED_PACKAGES ; do
97 97 if [ "`dpkg-query -W -f='${Status}' $package`" != "install ok installed" ] ; then
98 98 MISSING_PACKAGES="$MISSING_PACKAGES $package"
99 99 fi
100 100 done
101 101
102 102 # Ask if missing packages should get installed right now
103 103 if [ -n "$MISSING_PACKAGES" ] ; then
104 104 echo "the following packages needed by this script are not installed:"
105 105 echo "$MISSING_PACKAGES"
106 106
107 107 echo -n "\ndo you want to install the missing packages right now? [y/n] "
108 108 read confirm
109 109 if [ "$confirm" != "y" ] ; then
110 110 exit 1
111 111 fi
112 112 fi
113 113
114 114 # Make sure all required packages are installed
115 115 apt-get -qq -y install ${REQUIRED_PACKAGES}
116 116
117 117 # Don't clobber an old build
118 118 if [ -e "$BUILDDIR" ]; then
119 119 echo "directory $BUILDDIR already exists, not proceeding"
120 120 exit 1
121 121 fi
122 122
123 123 set -x
124 124
125 125 # Call "cleanup" function on various signals and errors
126 126 trap cleanup 0 1 2 3 6
127 127
128 128 # Set up chroot directory
129 129 mkdir -p $R
130 130
131 131 # Add required packages for the minbase installation
132 132 if [ "$ENABLE_MINBASE" = true ] ; then
133 133 APT_INCLUDES="${APT_INCLUDES},vim-tiny,netbase,net-tools"
134 134 else
135 135 APT_INCLUDES="${APT_INCLUDES},locales,keyboard-configuration,console-setup"
136 136 fi
137 137
138 138 # Add dbus package, recommended if using systemd
139 139 if [ "$ENABLE_DBUS" = true ] ; then
140 140 APT_INCLUDES="${APT_INCLUDES},dbus"
141 141 fi
142 142
143 143 # Add iptables IPv4/IPv6 package
144 144 if [ "$ENABLE_IPTABLES" = true ] ; then
145 145 APT_INCLUDES="${APT_INCLUDES},iptables"
146 146 fi
147 147
148 148 # Add openssh server package
149 149 if [ "$ENABLE_SSHD" = true ] ; then
150 150 APT_INCLUDES="${APT_INCLUDES},openssh-server"
151 151 fi
152 152
153 153 # Add alsa-utils package
154 154 if [ "$ENABLE_SOUND" = true ] ; then
155 155 APT_INCLUDES="${APT_INCLUDES},alsa-utils"
156 156 fi
157 157
158 158 # Add rng-tools package
159 159 if [ "$ENABLE_HWRANDOM" = true ] ; then
160 160 APT_INCLUDES="${APT_INCLUDES},rng-tools"
161 161 fi
162 162
163 163 # Add fbturbo video driver
164 164 if [ "$ENABLE_FBTURBO" = true ] ; then
165 165 # Enable xorg package dependencies
166 166 ENABLE_XORG=true
167 167 fi
168 168
169 169 # Add user defined window manager package
170 170 if [ -n "$ENABLE_WM" ] ; then
171 171 APT_INCLUDES="${APT_INCLUDES},${ENABLE_WM}"
172 172
173 173 # Enable xorg package dependencies
174 174 ENABLE_XORG=true
175 175 fi
176 176
177 177 # Add xorg package
178 178 if [ "$ENABLE_XORG" = true ] ; then
179 179 APT_INCLUDES="${APT_INCLUDES},xorg"
180 180 fi
181 181
182 182 # Base debootstrap (unpack only)
183 183 if [ "$ENABLE_MINBASE" = true ] ; then
184 184 http_proxy=${APT_PROXY} debootstrap --arch=armhf --variant=minbase --foreign --include=${APT_INCLUDES} $RELEASE $R http://${APT_SERVER}/debian
185 185 else
186 186 http_proxy=${APT_PROXY} debootstrap --arch=armhf --foreign --include=${APT_INCLUDES} $RELEASE $R http://${APT_SERVER}/debian
187 187 fi
188 188
189 189 # Copy qemu emulator binary to chroot
190 190 cp /usr/bin/qemu-arm-static $R/usr/bin
191 191
192 192 # Copy debian-archive-keyring.pgp
193 193 chroot $R mkdir -p /usr/share/keyrings
194 194 cp /usr/share/keyrings/debian-archive-keyring.gpg $R/usr/share/keyrings/debian-archive-keyring.gpg
195 195
196 196 # Complete the bootstrapping process
197 197 chroot $R /debootstrap/debootstrap --second-stage
198 198
199 199 # Mount required filesystems
200 200 mount -t proc none $R/proc
201 201 mount -t sysfs none $R/sys
202 202 mount --bind /dev/pts $R/dev/pts
203 203
204 204 # Use proxy inside chroot
205 205 if [ -z "$APT_PROXY" ] ; then
206 echo "Acquire::http::Proxy \"$APT_PROXY\"" >> $R/etc/apt/apt.conf.d/10proxy
206 echo "Acquire::http::Proxy \"$APT_PROXY\";" >> $R/etc/apt/apt.conf.d/10proxy
207 207 fi
208 208
209 209 # Pin package flash-kernel to repositories.collabora.co.uk
210 210 cat <<EOM >$R/etc/apt/preferences.d/flash-kernel
211 211 Package: flash-kernel
212 212 Pin: origin repositories.collabora.co.uk
213 213 Pin-Priority: 1000
214 214 EOM
215 215
216 216 # Set up timezone
217 217 echo ${TIMEZONE} >$R/etc/timezone
218 218 LANG=C chroot $R dpkg-reconfigure -f noninteractive tzdata
219 219
220 220 # Upgrade collabora package index and install collabora keyring
221 221 echo "deb https://repositories.collabora.co.uk/debian ${RELEASE} rpi2" >$R/etc/apt/sources.list
222 222 LANG=C chroot $R apt-get -qq -y update
223 223 LANG=C chroot $R apt-get -qq -y --force-yes install collabora-obs-archive-keyring
224 224
225 225 # Set up initial sources.list
226 226 cat <<EOM >$R/etc/apt/sources.list
227 227 deb http://${APT_SERVER}/debian ${RELEASE} main contrib
228 228 #deb-src http://${APT_SERVER}/debian ${RELEASE} main contrib
229 229
230 230 deb http://${APT_SERVER}/debian/ ${RELEASE}-updates main contrib
231 231 #deb-src http://${APT_SERVER}/debian/ ${RELEASE}-updates main contrib
232 232
233 233 deb http://security.debian.org/ ${RELEASE}/updates main contrib
234 234 #deb-src http://security.debian.org/ ${RELEASE}/updates main contrib
235 235
236 236 deb https://repositories.collabora.co.uk/debian ${RELEASE} rpi2
237 237 EOM
238 238
239 239 # Upgrade package index and update all installed packages and changed dependencies
240 240 LANG=C chroot $R apt-get -qq -y update
241 241 LANG=C chroot $R apt-get -qq -y -u dist-upgrade
242 242
243 243 # Set up default locale and keyboard configuration
244 244 if [ "$ENABLE_MINBASE" = false ] ; then
245 245 # Set locale choice in debconf db, even though dpkg-reconfigure ignores and overwrites them due to some bug
246 246 # https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=684134 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=685957
247 247 # ... so we have to set locales manually
248 248 if [ "$DEFLOCAL" = "en_US.UTF-8" ] ; then
249 249 LANG=C chroot $R echo "locales locales/locales_to_be_generated multiselect ${DEFLOCAL} UTF-8" | debconf-set-selections
250 250 else
251 251 # en_US.UTF-8 should be available anyway : https://www.debian.org/doc/manuals/debian-reference/ch08.en.html#_the_reconfiguration_of_the_locale
252 252 LANG=C chroot $R echo "locales locales/locales_to_be_generated multiselect en_US.UTF-8 UTF-8, ${DEFLOCAL} UTF-8" | debconf-set-selections
253 253 LANG=C chroot $R sed -i "/en_US.UTF-8/s/^#//" /etc/locale.gen
254 254 fi
255 255 LANG=C chroot $R sed -i "/${DEFLOCAL}/s/^#//" /etc/locale.gen
256 256 LANG=C chroot $R echo "locales locales/default_environment_locale select ${DEFLOCAL}" | debconf-set-selections
257 257 LANG=C chroot $R locale-gen
258 258 LANG=C chroot $R update-locale LANG=${DEFLOCAL}
259 259
260 260 # Keyboard configuration, if requested
261 261 if [ "$XKBMODEL" != "" ] ; then
262 262 LANG=C chroot $R sed -i "s/^XKBMODEL.*/XKBMODEL=\"${XKBMODEL}\"/" /etc/default/keyboard
263 263 fi
264 264 if [ "$XKBLAYOUT" != "" ] ; then
265 265 LANG=C chroot $R sed -i "s/^XKBLAYOUT.*/XKBLAYOUT=\"${XKBLAYOUT}\"/" /etc/default/keyboard
266 266 fi
267 267 if [ "$XKBVARIANT" != "" ] ; then
268 268 LANG=C chroot $R sed -i "s/^XKBVARIANT.*/XKBVARIANT=\"${XKBVARIANT}\"/" /etc/default/keyboard
269 269 fi
270 270 if [ "$XKBOPTIONS" != "" ] ; then
271 271 LANG=C chroot $R sed -i "s/^XKBOPTIONS.*/XKBOPTIONS=\"${XKBOPTIONS}\"/" /etc/default/keyboard
272 272 fi
273 273 LANG=C chroot $R dpkg-reconfigure -f noninteractive keyboard-configuration
274 274 # Set up font console
275 275 case "${DEFLOCAL}" in
276 276 *UTF-8)
277 277 LANG=C chroot $R sed -i 's/^CHARMAP.*/CHARMAP="UTF-8"/' /etc/default/console-setup
278 278 ;;
279 279 *)
280 280 LANG=C chroot $R sed -i 's/^CHARMAP.*/CHARMAP="guess"/' /etc/default/console-setup
281 281 ;;
282 282 esac
283 283 LANG=C chroot $R dpkg-reconfigure -f noninteractive console-setup
284 284 fi
285 285
286 286 # Kernel installation
287 287 # Install flash-kernel last so it doesn't try (and fail) to detect the platform in the chroot
288 288 LANG=C chroot $R apt-get -qq -y --no-install-recommends install linux-image-3.18.0-trunk-rpi2
289 289 LANG=C chroot $R apt-get -qq -y install flash-kernel
290 290
291 291 VMLINUZ="$(ls -1 $R/boot/vmlinuz-* | sort | tail -n 1)"
292 292 [ -z "$VMLINUZ" ] && exit 1
293 293 mkdir -p $R/boot/firmware
294 294
295 295 # required boot binaries from raspberry/firmware github (commit: "kernel: Bump to 3.18.10")
296 296 wget -q -O $R/boot/firmware/bootcode.bin https://github.com/raspberrypi/firmware/raw/cd355a9dd4f1f4de2e79b0c8e102840885cdf1de/boot/bootcode.bin
297 297 wget -q -O $R/boot/firmware/fixup_cd.dat https://github.com/raspberrypi/firmware/raw/cd355a9dd4f1f4de2e79b0c8e102840885cdf1de/boot/fixup_cd.dat
298 298 wget -q -O $R/boot/firmware/fixup.dat https://github.com/raspberrypi/firmware/raw/cd355a9dd4f1f4de2e79b0c8e102840885cdf1de/boot/fixup.dat
299 299 wget -q -O $R/boot/firmware/fixup_x.dat https://github.com/raspberrypi/firmware/raw/cd355a9dd4f1f4de2e79b0c8e102840885cdf1de/boot/fixup_x.dat
300 300 wget -q -O $R/boot/firmware/start_cd.elf https://github.com/raspberrypi/firmware/raw/cd355a9dd4f1f4de2e79b0c8e102840885cdf1de/boot/start_cd.elf
301 301 wget -q -O $R/boot/firmware/start.elf https://github.com/raspberrypi/firmware/raw/cd355a9dd4f1f4de2e79b0c8e102840885cdf1de/boot/start.elf
302 302 wget -q -O $R/boot/firmware/start_x.elf https://github.com/raspberrypi/firmware/raw/cd355a9dd4f1f4de2e79b0c8e102840885cdf1de/boot/start_x.elf
303 303 cp $VMLINUZ $R/boot/firmware/kernel7.img
304 304
305 305 # Set up IPv4 hosts
306 306 echo ${HOSTNAME} >$R/etc/hostname
307 307 cat <<EOM >$R/etc/hosts
308 308 127.0.0.1 localhost
309 309 127.0.1.1 ${HOSTNAME}
310 310 EOM
311 311
312 312 # Set up IPv6 hosts
313 313 if [ "$ENABLE_IPV6" = true ] ; then
314 314 cat <<EOM >>$R/etc/hosts
315 315
316 316 ::1 localhost ip6-localhost ip6-loopback
317 317 ff02::1 ip6-allnodes
318 318 ff02::2 ip6-allrouters
319 319 EOM
320 320 fi
321 321
322 322 # Place hint about network configuration
323 323 cat <<EOM >$R/etc/network/interfaces
324 324 # Debian switched to systemd-networkd configuration files.
325 325 # please configure your networks in '/etc/systemd/network/'
326 326 EOM
327 327
328 328 # Enable systemd-networkd DHCP configuration for interface eth0
329 329 cat <<EOM >$R/etc/systemd/network/eth.network
330 330 [Match]
331 331 Name=eth0
332 332
333 333 [Network]
334 334 DHCP=yes
335 335 EOM
336 336
337 337 # Set DHCP configuration to IPv4 only
338 338 if [ "$ENABLE_IPV6" = false ] ; then
339 339 sed -i "s/=yes/=v4/" $R/etc/systemd/network/eth.network
340 340 fi
341 341
342 342 # Enable systemd-networkd service
343 343 LANG=C chroot $R systemctl enable systemd-networkd
344 344
345 345 # Generate crypt(3) password string
346 346 ENCRYPTED_PASSWORD=`mkpasswd -m sha-512 ${PASSWORD}`
347 347
348 348 # Set up default user
349 349 LANG=C chroot $R adduser --gecos "Raspberry PI user" --add_extra_groups --disabled-password pi
350 350 LANG=C chroot $R usermod -a -G sudo -p "${ENCRYPTED_PASSWORD}" pi
351 351
352 352 # Set up root password
353 353 LANG=C chroot $R usermod -p "${ENCRYPTED_PASSWORD}" root
354 354
355 355 # Set up firmware boot cmdline
356 356 CMDLINE="dwc_otg.lpm_enable=0 root=/dev/mmcblk0p2 rootfstype=ext4 rootflags=commit=100,data=writeback elevator=deadline rootwait net.ifnames=1 console=tty1"
357 357
358 358 # Set up serial console support (if requested)
359 359 if [ "$ENABLE_CONSOLE" = true ] ; then
360 360 CMDLINE="${CMDLINE} console=ttyAMA0,115200 kgdboc=ttyAMA0,115200"
361 361 fi
362 362
363 363 # Set up IPv6 networking support
364 364 if [ "$ENABLE_IPV6" = false ] ; then
365 365 CMDLINE="${CMDLINE} ipv6.disable=1"
366 366 fi
367 367
368 368 echo "${CMDLINE}" >$R/boot/firmware/cmdline.txt
369 369
370 370 # Set up firmware config
371 371 cat <<EOM >$R/boot/firmware/config.txt
372 372 # For more options and information see
373 373 # http://www.raspberrypi.org/documentation/configuration/config-txt.md
374 374 # Some settings may impact device functionality. See link above for details
375 375
376 376 # uncomment if you get no picture on HDMI for a default "safe" mode
377 377 #hdmi_safe=1
378 378
379 379 # uncomment this if your display has a black border of unused pixels visible
380 380 # and your display can output without overscan
381 381 #disable_overscan=1
382 382
383 383 # uncomment the following to adjust overscan. Use positive numbers if console
384 384 # goes off screen, and negative if there is too much border
385 385 #overscan_left=16
386 386 #overscan_right=16
387 387 #overscan_top=16
388 388 #overscan_bottom=16
389 389
390 390 # uncomment to force a console size. By default it will be display's size minus
391 391 # overscan.
392 392 #framebuffer_width=1280
393 393 #framebuffer_height=720
394 394
395 395 # uncomment if hdmi display is not detected and composite is being output
396 396 #hdmi_force_hotplug=1
397 397
398 398 # uncomment to force a specific HDMI mode (this will force VGA)
399 399 #hdmi_group=1
400 400 #hdmi_mode=1
401 401
402 402 # uncomment to force a HDMI mode rather than DVI. This can make audio work in
403 403 # DMT (computer monitor) modes
404 404 #hdmi_drive=2
405 405
406 406 # uncomment to increase signal to HDMI, if you have interference, blanking, or
407 407 # no display
408 408 #config_hdmi_boost=4
409 409
410 410 # uncomment for composite PAL
411 411 #sdtv_mode=2
412 412
413 413 # uncomment to overclock the arm. 700 MHz is the default.
414 414 #arm_freq=800
415 415 EOM
416 416
417 417 # Load snd_bcm2835 kernel module at boot time
418 418 if [ "$ENABLE_SOUND" = true ] ; then
419 419 echo "snd_bcm2835" >>$R/etc/modules
420 420 fi
421 421
422 422 # Set smallest possible GPU memory allocation size: 16MB (no X)
423 423 if [ "$ENABLE_MINGPU" = true ] ; then
424 424 echo "gpu_mem=16" >>$R/boot/firmware/config.txt
425 425 fi
426 426
427 427 # Create symlinks
428 428 ln -sf firmware/config.txt $R/boot/config.txt
429 429 ln -sf firmware/cmdline.txt $R/boot/cmdline.txt
430 430
431 431 # Prepare modules-load.d directory
432 432 mkdir -p $R/lib/modules-load.d/
433 433
434 434 # Load random module on boot
435 435 if [ "$ENABLE_HWRANDOM" = true ] ; then
436 436 cat <<EOM >$R/lib/modules-load.d/rpi2.conf
437 437 bcm2708_rng
438 438 EOM
439 439 fi
440 440
441 441 # Prepare modprobe.d directory
442 442 mkdir -p $R/etc/modprobe.d/
443 443
444 444 # Blacklist sound modules
445 445 cat <<EOM >$R/etc/modprobe.d/raspi-blacklist.conf
446 446 blacklist snd_soc_core
447 447 blacklist snd_pcm
448 448 blacklist snd_pcm_dmaengine
449 449 blacklist snd_timer
450 450 blacklist snd_compress
451 451 blacklist snd_soc_pcm512x_i2c
452 452 blacklist snd_soc_pcm512x
453 453 blacklist snd_soc_tas5713
454 454 blacklist snd_soc_wm8804
455 455 EOM
456 456
457 457 # Create default fstab
458 458 cat <<EOM >$R/etc/fstab
459 459 /dev/mmcblk0p2 / ext4 noatime,nodiratime,errors=remount-ro,discard,data=writeback,commit=100 0 1
460 460 /dev/mmcblk0p1 /boot/firmware vfat defaults,noatime,nodiratime 0 2
461 461 EOM
462 462
463 463 # Avoid swapping and increase cache sizes
464 464 cat <<EOM >>$R/etc/sysctl.d/99-sysctl.conf
465 465
466 466 # Avoid swapping and increase cache sizes
467 467 vm.swappiness=1
468 468 vm.dirty_background_ratio=20
469 469 vm.dirty_ratio=40
470 470 vm.dirty_writeback_centisecs=500
471 471 vm.dirty_expire_centisecs=6000
472 472 EOM
473 473
474 474 # Enable network stack hardening
475 475 if [ "$ENABLE_HARDNET" = true ] ; then
476 476 cat <<EOM >>$R/etc/sysctl.d/99-sysctl.conf
477 477
478 478 # Enable network stack hardening
479 479 net.ipv4.tcp_timestamps=0
480 480 net.ipv4.tcp_syncookies=1
481 481 net.ipv4.conf.all.rp_filter=1
482 482 net.ipv4.conf.all.accept_redirects=0
483 483 net.ipv4.conf.all.send_redirects=0
484 484 net.ipv4.conf.all.accept_source_route=0
485 485 net.ipv4.conf.default.rp_filter=1
486 486 net.ipv4.conf.default.accept_redirects=0
487 487 net.ipv4.conf.default.send_redirects=0
488 488 net.ipv4.conf.default.accept_source_route=0
489 489 net.ipv4.conf.lo.accept_redirects=0
490 490 net.ipv4.conf.lo.send_redirects=0
491 491 net.ipv4.conf.lo.accept_source_route=0
492 492 net.ipv4.conf.eth0.accept_redirects=0
493 493 net.ipv4.conf.eth0.send_redirects=0
494 494 net.ipv4.conf.eth0.accept_source_route=0
495 495 net.ipv4.icmp_echo_ignore_broadcasts=1
496 496 net.ipv4.icmp_ignore_bogus_error_responses=1
497 497
498 498 net.ipv6.conf.all.accept_redirects=0
499 499 net.ipv6.conf.all.accept_source_route=0
500 500 net.ipv6.conf.all.router_solicitations=0
501 501 net.ipv6.conf.all.accept_ra_rtr_pref=0
502 502 net.ipv6.conf.all.accept_ra_pinfo=0
503 503 net.ipv6.conf.all.accept_ra_defrtr=0
504 504 net.ipv6.conf.all.autoconf=0
505 505 net.ipv6.conf.all.dad_transmits=0
506 506 net.ipv6.conf.all.max_addresses=1
507 507
508 508 net.ipv6.conf.default.accept_redirects=0
509 509 net.ipv6.conf.default.accept_source_route=0
510 510 net.ipv6.conf.default.router_solicitations=0
511 511 net.ipv6.conf.default.accept_ra_rtr_pref=0
512 512 net.ipv6.conf.default.accept_ra_pinfo=0
513 513 net.ipv6.conf.default.accept_ra_defrtr=0
514 514 net.ipv6.conf.default.autoconf=0
515 515 net.ipv6.conf.default.dad_transmits=0
516 516 net.ipv6.conf.default.max_addresses=1
517 517
518 518 net.ipv6.conf.lo.accept_redirects=0
519 519 net.ipv6.conf.lo.accept_source_route=0
520 520 net.ipv6.conf.lo.router_solicitations=0
521 521 net.ipv6.conf.lo.accept_ra_rtr_pref=0
522 522 net.ipv6.conf.lo.accept_ra_pinfo=0
523 523 net.ipv6.conf.lo.accept_ra_defrtr=0
524 524 net.ipv6.conf.lo.autoconf=0
525 525 net.ipv6.conf.lo.dad_transmits=0
526 526 net.ipv6.conf.lo.max_addresses=1
527 527
528 528 net.ipv6.conf.eth0.accept_redirects=0
529 529 net.ipv6.conf.eth0.accept_source_route=0
530 530 net.ipv6.conf.eth0.router_solicitations=0
531 531 net.ipv6.conf.eth0.accept_ra_rtr_pref=0
532 532 net.ipv6.conf.eth0.accept_ra_pinfo=0
533 533 net.ipv6.conf.eth0.accept_ra_defrtr=0
534 534 net.ipv6.conf.eth0.autoconf=0
535 535 net.ipv6.conf.eth0.dad_transmits=0
536 536 net.ipv6.conf.eth0.max_addresses=1
537 537 EOM
538 538
539 539 # Enable resolver warnings about spoofed addresses
540 540 cat <<EOM >>$R/etc/host.conf
541 541 spoof warn
542 542 EOM
543 543 fi
544 544
545 545 # Regenerate openssh server host keys
546 546 if [ "$ENABLE_SSHD" = true ] ; then
547 547 rm -fr $R/etc/ssh/ssh_host_*
548 548 LANG=C chroot $R dpkg-reconfigure openssh-server
549 549 fi
550 550
551 551 # Enable serial console systemd style
552 552 if [ "$ENABLE_CONSOLE" = true ] ; then
553 553 LANG=C chroot $R systemctl enable serial-getty\@ttyAMA0.service
554 554 fi
555 555
556 556 # Enable firewall based on iptables started by systemd service
557 557 if [ "$ENABLE_IPTABLES" = true ] ; then
558 558 # Create iptables configuration directory
559 559 mkdir -p "$R/etc/iptables"
560 560
561 561 # Create iptables systemd service
562 562 cat <<EOM >$R/etc/systemd/system/iptables.service
563 563 [Unit]
564 564 Description=Packet Filtering Framework
565 565 DefaultDependencies=no
566 566 After=systemd-sysctl.service
567 567 Before=sysinit.target
568 568 [Service]
569 569 Type=oneshot
570 570 ExecStart=/sbin/iptables-restore /etc/iptables/iptables.rules
571 571 ExecReload=/sbin/iptables-restore /etc/iptables/iptables.rules
572 572 ExecStop=/etc/iptables/flush-iptables.sh
573 573 RemainAfterExit=yes
574 574 [Install]
575 575 WantedBy=multi-user.target
576 576 EOM
577 577
578 578 # Create flush-table script called by iptables service
579 579 cat <<EOM >$R/etc/iptables/flush-iptables.sh
580 580 #!/bin/sh
581 581 iptables -F
582 582 iptables -X
583 583 iptables -t nat -F
584 584 iptables -t nat -X
585 585 iptables -t mangle -F
586 586 iptables -t mangle -X
587 587 iptables -P INPUT ACCEPT
588 588 iptables -P FORWARD ACCEPT
589 589 iptables -P OUTPUT ACCEPT
590 590 EOM
591 591
592 592 # Create iptables rule file
593 593 cat <<EOM >$R/etc/iptables/iptables.rules
594 594 *filter
595 595 :INPUT DROP [0:0]
596 596 :FORWARD DROP [0:0]
597 597 :OUTPUT ACCEPT [0:0]
598 598 :TCP - [0:0]
599 599 :UDP - [0:0]
600 600 :SSH - [0:0]
601 601
602 602 # Rate limit ping requests
603 603 -A INPUT -p icmp --icmp-type echo-request -m limit --limit 30/min --limit-burst 8 -j ACCEPT
604 604 -A INPUT -p icmp --icmp-type echo-request -j DROP
605 605
606 606 # Accept established connections
607 607 -A INPUT -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
608 608
609 609 # Accept all traffic on loopback interface
610 610 -A INPUT -i lo -j ACCEPT
611 611
612 612 # Drop packets declared invalid
613 613 -A INPUT -m conntrack --ctstate INVALID -j DROP
614 614
615 615 # SSH rate limiting
616 616 -A INPUT -p tcp --dport ssh -m conntrack --ctstate NEW -j SSH
617 617 -A SSH -m recent --name sshbf --rttl --rcheck --hitcount 3 --seconds 10 -j DROP
618 618 -A SSH -m recent --name sshbf --rttl --rcheck --hitcount 20 --seconds 1800 -j DROP
619 619 -A SSH -m recent --name sshbf --set -j ACCEPT
620 620
621 621 # Send TCP and UDP connections to their respective rules chain
622 622 -A INPUT -p udp -m conntrack --ctstate NEW -j UDP
623 623 -A INPUT -p tcp --syn -m conntrack --ctstate NEW -j TCP
624 624
625 625 # Reject dropped packets with a RFC compliant responce
626 626 -A INPUT -p udp -j REJECT --reject-with icmp-port-unreachable
627 627 -A INPUT -p tcp -j REJECT --reject-with tcp-rst
628 628 -A INPUT -j REJECT --reject-with icmp-proto-unreachable
629 629
630 630 ## TCP PORT RULES
631 631 # -A TCP -p tcp -j LOG
632 632
633 633 ## UDP PORT RULES
634 634 # -A UDP -p udp -j LOG
635 635
636 636 COMMIT
637 637 EOM
638 638
639 639 # Reload systemd configuration and enable iptables service
640 640 LANG=C chroot $R systemctl daemon-reload
641 641 LANG=C chroot $R systemctl enable iptables.service
642 642
643 643 if [ "$ENABLE_IPV6" = true ] ; then
644 644 # Create ip6tables systemd service
645 645 cat <<EOM >$R/etc/systemd/system/ip6tables.service
646 646 [Unit]
647 647 Description=Packet Filtering Framework
648 648 DefaultDependencies=no
649 649 After=systemd-sysctl.service
650 650 Before=sysinit.target
651 651 [Service]
652 652 Type=oneshot
653 653 ExecStart=/sbin/ip6tables-restore /etc/iptables/ip6tables.rules
654 654 ExecReload=/sbin/ip6tables-restore /etc/iptables/ip6tables.rules
655 655 ExecStop=/etc/iptables/flush-ip6tables.sh
656 656 RemainAfterExit=yes
657 657 [Install]
658 658 WantedBy=multi-user.target
659 659 EOM
660 660
661 661 # Create ip6tables file
662 662 cat <<EOM >$R/etc/iptables/flush-ip6tables.sh
663 663 #!/bin/sh
664 664 ip6tables -F
665 665 ip6tables -X
666 666 ip6tables -Z
667 667 for table in $(</proc/net/ip6_tables_names)
668 668 do
669 669 ip6tables -t \$table -F
670 670 ip6tables -t \$table -X
671 671 ip6tables -t \$table -Z
672 672 done
673 673 ip6tables -P INPUT ACCEPT
674 674 ip6tables -P OUTPUT ACCEPT
675 675 ip6tables -P FORWARD ACCEPT
676 676 EOM
677 677
678 678 # Create ip6tables rule file
679 679 cat <<EOM >$R/etc/iptables/ip6tables.rules
680 680 *filter
681 681 :INPUT DROP [0:0]
682 682 :FORWARD DROP [0:0]
683 683 :OUTPUT ACCEPT [0:0]
684 684 :TCP - [0:0]
685 685 :UDP - [0:0]
686 686 :SSH - [0:0]
687 687
688 688 # Drop packets with RH0 headers
689 689 -A INPUT -m rt --rt-type 0 -j DROP
690 690 -A OUTPUT -m rt --rt-type 0 -j DROP
691 691 -A FORWARD -m rt --rt-type 0 -j DROP
692 692
693 693 # Rate limit ping requests
694 694 -A INPUT -p icmpv6 --icmpv6-type echo-request -m limit --limit 30/min --limit-burst 8 -j ACCEPT
695 695 -A INPUT -p icmpv6 --icmpv6-type echo-request -j DROP
696 696
697 697 # Accept established connections
698 698 -A INPUT -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
699 699
700 700 # Accept all traffic on loopback interface
701 701 -A INPUT -i lo -j ACCEPT
702 702
703 703 # Drop packets declared invalid
704 704 -A INPUT -m conntrack --ctstate INVALID -j DROP
705 705
706 706 # SSH rate limiting
707 707 -A INPUT -p tcp --dport ssh -m conntrack --ctstate NEW -j SSH
708 708 -A SSH -m recent --name sshbf --rttl --rcheck --hitcount 3 --seconds 10 -j DROP
709 709 -A SSH -m recent --name sshbf --rttl --rcheck --hitcount 20 --seconds 1800 -j DROP
710 710 -A SSH -m recent --name sshbf --set -j ACCEPT
711 711
712 712 # Send TCP and UDP connections to their respective rules chain
713 713 -A INPUT -p udp -m conntrack --ctstate NEW -j UDP
714 714 -A INPUT -p tcp --syn -m conntrack --ctstate NEW -j TCP
715 715
716 716 # Reject dropped packets with a RFC compliant responce
717 717 -A INPUT -p udp -j REJECT --reject-with icmp6-adm-prohibited
718 718 -A INPUT -p tcp -j REJECT --reject-with icmp6-adm-prohibited
719 719 -A INPUT -j REJECT --reject-with icmp6-adm-prohibited
720 720
721 721 ## TCP PORT RULES
722 722 # -A TCP -p tcp -j LOG
723 723
724 724 ## UDP PORT RULES
725 725 # -A UDP -p udp -j LOG
726 726
727 727 COMMIT
728 728 EOM
729 729
730 730 # Reload systemd configuration and enable iptables service
731 731 LANG=C chroot $R systemctl daemon-reload
732 732 LANG=C chroot $R systemctl enable ip6tables.service
733 733 fi
734 734 fi
735 735
736 736 # Remove SSHD related iptables rules
737 737 if [ "$ENABLE_SSHD" = false ] ; then
738 738 sed -e '/^#/! {/SSH/ s/^/# /}' -i $R/etc/iptables/iptables.rules 2> /dev/null
739 739 sed -e '/^#/! {/SSH/ s/^/# /}' -i $R/etc/iptables/ip6tables.rules 2> /dev/null
740 740 fi
741 741
742 742 # Install gcc/c++ build environment inside the chroot
743 743 if [ "$ENABLE_UBOOT" = true ] || [ "$ENABLE_FBTURBO" = true ]; then
744 744 LANG=C chroot $R apt-get install -q -y --force-yes --no-install-recommends linux-compiler-gcc-4.9-arm g++ make bc
745 745 fi
746 746
747 747 # Fetch and build U-Boot bootloader
748 748 if [ "$ENABLE_UBOOT" = true ] ; then
749 749 # Fetch U-Boot bootloader sources
750 750 git -C $R/tmp clone git://git.denx.de/u-boot.git
751 751
752 752 # Build and install U-Boot inside chroot
753 753 LANG=C chroot $R make -C /tmp/u-boot/ rpi_2_defconfig all
754 754
755 755 # Copy compiled bootloader binary and set config.txt to load it
756 756 cp $R/tmp/u-boot/u-boot.bin $R/boot/firmware/
757 757 printf "\n# boot u-boot kernel\nkernel=u-boot.bin\n" >> $R/boot/firmware/config.txt
758 758
759 759 # Set U-Boot command file
760 760 cat <<EOM >$R/boot/firmware/uboot.mkimage
761 761 # Tell Linux that it is booting on a Raspberry Pi2
762 762 setenv machid 0x00000c42
763 763
764 764 # Set the kernel boot command line
765 765 setenv bootargs "earlyprintk ${CMDLINE}"
766 766
767 767 # Save these changes to u-boot's environment
768 768 saveenv
769 769
770 770 # Load the existing Linux kernel into RAM
771 771 fatload mmc 0:1 \${kernel_addr_r} kernel7.img
772 772
773 773 # Boot the kernel we have just loaded
774 774 bootz \${kernel_addr_r}
775 775 EOM
776 776
777 777 # Generate U-Boot image from command file
778 778 LANG=C chroot $R mkimage -A arm -O linux -T script -C none -a 0x00000000 -e 0x00000000 -n "RPi2 Boot Script" -d /boot/firmware/uboot.mkimage /boot/firmware/boot.scr
779 779 fi
780 780
781 781 # Fetch and build fbturbo Xorg driver
782 782 if [ "$ENABLE_FBTURBO" = true ] ; then
783 783 # Fetch fbturbo driver sources
784 784 git -C $R/tmp clone https://github.com/ssvb/xf86-video-fbturbo.git
785 785
786 786 # Install Xorg build dependencies
787 787 LANG=C chroot $R apt-get install -q -y --no-install-recommends xorg-dev xutils-dev x11proto-dri2-dev libltdl-dev libtool automake libdrm-dev
788 788
789 789 # Build and install fbturbo driver inside chroot
790 790 LANG=C chroot $R /bin/bash -c "cd /tmp/xf86-video-fbturbo; autoreconf -vi; ./configure --prefix=/usr; make; make install"
791 791
792 792 # Add fbturbo driver to Xorg configuration
793 793 cat <<EOM >$R/usr/share/X11/xorg.conf.d/99-fbturbo.conf
794 794 Section "Device"
795 795 Identifier "Allwinner A10/A13 FBDEV"
796 796 Driver "fbturbo"
797 797 Option "fbdev" "/dev/fb0"
798 798 Option "SwapbuffersWait" "true"
799 799 EndSection
800 800 EOM
801 801
802 802 # Remove Xorg build dependencies
803 803 LANG=C chroot $R apt-get -q -y purge --auto-remove xorg-dev xutils-dev x11proto-dri2-dev libltdl-dev libtool automake libdrm-dev
804 804 fi
805 805
806 806 # Remove gcc/c++ build environment from the chroot
807 807 if [ "$ENABLE_UBOOT" = true ] || [ "$ENABLE_FBTURBO" = true ]; then
808 808 LANG=C chroot $R apt-get -y -q purge --auto-remove bc binutils cpp cpp-4.9 g++ g++-4.9 gcc gcc-4.9 libasan1 libatomic1 libc-dev-bin libc6-dev libcloog-isl4 libgcc-4.9-dev libgomp1 libisl10 libmpc3 libmpfr4 libstdc++-4.9-dev libubsan0 linux-compiler-gcc-4.9-arm linux-libc-dev make
809 809 fi
810 810
811 811 # Clean cached downloads
812 812 LANG=C chroot $R apt-get -y clean
813 813 LANG=C chroot $R apt-get -y autoclean
814 814 LANG=C chroot $R apt-get -y autoremove
815 815
816 816 # Unmount mounted filesystems
817 817 umount -l $R/proc
818 818 umount -l $R/sys
819 819
820 820 # Clean up files
821 821 rm -f $R/etc/apt/sources.list.save
822 822 rm -f $R/etc/resolvconf/resolv.conf.d/original
823 823 rm -rf $R/run
824 824 mkdir -p $R/run
825 825 rm -f $R/etc/*-
826 826 rm -f $R/root/.bash_history
827 827 rm -rf $R/tmp/*
828 828 rm -f $R/var/lib/urandom/random-seed
829 829 [ -L $R/var/lib/dbus/machine-id ] || rm -f $R/var/lib/dbus/machine-id
830 830 rm -f $R/etc/machine-id
831 831 rm -fr $R/etc/apt/apt.conf.d/10proxy
832 832
833 833 # Calculate size of the chroot directory
834 834 CHROOT_SIZE=$(expr `du -s $R | awk '{ print $1 }'` / 1024)
835 835
836 836 # Calculate required image size
837 837 IMAGE_SIZE=`expr $(expr ${CHROOT_SIZE} / 1024 + 1) \* 1024`
838 838
839 839 # Calculate number of sectors for the partition
840 840 IMAGE_SECTORS=`expr $(expr ${IMAGE_SIZE} \* 1048576) / 512 - 133120`
841 841
842 842 # Prepare date string for image file name
843 843 DATE="$(date +%Y-%m-%d)"
844 844
845 845 # Prepare image file
846 846 dd if=/dev/zero of="$BASEDIR/${DATE}-debian-${RELEASE}.img" bs=1M count=1
847 847 dd if=/dev/zero of="$BASEDIR/${DATE}-debian-${RELEASE}.img" bs=1M count=0 seek=${IMAGE_SIZE}
848 848
849 849 # Write partition table
850 850 sfdisk -q -L -f "$BASEDIR/${DATE}-debian-${RELEASE}.img" <<EOM
851 851 unit: sectors
852 852
853 853 1 : start= 2048, size= 131072, Id= c, bootable
854 854 2 : start= 133120, size= ${IMAGE_SECTORS}, Id=83
855 855 3 : start= 0, size= 0, Id= 0
856 856 4 : start= 0, size= 0, Id= 0
857 857 EOM
858 858
859 859 # Set up temporary loop devices and build filesystems
860 860 VFAT_LOOP="$(losetup -o 1M --sizelimit 64M -f --show $BASEDIR/${DATE}-debian-${RELEASE}.img)"
861 861 EXT4_LOOP="$(losetup -o 65M --sizelimit `expr ${IMAGE_SIZE} - 64`M -f --show $BASEDIR/${DATE}-debian-${RELEASE}.img)"
862 862 mkfs.vfat "$VFAT_LOOP"
863 863 mkfs.ext4 "$EXT4_LOOP"
864 864
865 865 # Mount the temporary loop devices
866 866 mkdir -p "$BUILDDIR/mount"
867 867 mount "$EXT4_LOOP" "$BUILDDIR/mount"
868 868
869 869 mkdir -p "$BUILDDIR/mount/boot/firmware"
870 870 mount "$VFAT_LOOP" "$BUILDDIR/mount/boot/firmware"
871 871
872 872 # Copy all files from the chroot to the loop device mount point directory
873 873 rsync -a "$R/" "$BUILDDIR/mount/"
874 874
875 875 # Unmount all temporary loop devices and mount points
876 876 cleanup
877 877
878 878 # (optinal) create block map file for "bmaptool"
879 879 bmaptool create -o "$BASEDIR/${DATE}-debian-${RELEASE}.bmap" "$BASEDIR/${DATE}-debian-${RELEASE}.img"
880 880
881 881 # Image was successfully created
882 882 echo "$BASEDIR/${DATE}-debian-${RELEASE}.img (${IMAGE_SIZE})" ": successfully created"
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