##// END OF EJS Templates
fix: ENABLE_SOUND
Jan Wagner -
r21:b19241fdfd96
parent child
Show More
@@ -1,845 +1,846
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 # Clean up all temporary mount points
18 19 cleanup (){
19 20 set +x
20 21 set +e
21 22 echo "removing temporary mount points ..."
22 23 umount -l $R/proc 2> /dev/null
23 24 umount -l $R/sys 2> /dev/null
24 25 umount -l $R/dev/pts 2> /dev/null
25 26 umount "$BUILDDIR/mount/boot/firmware" 2> /dev/null
26 27 umount "$BUILDDIR/mount" 2> /dev/null
27 28 losetup -d "$EXT4_LOOP" 2> /dev/null
28 29 losetup -d "$VFAT_LOOP" 2> /dev/null
29 30 trap - 0 1 2 3 6
30 31 }
31 32
32 33 set -e
33 34 set -x
34 35
36 # Debian release
35 37 RELEASE=${RELEASE:=jessie}
36 38
37 39 # Build settings
38 40 BASEDIR=./images/${RELEASE}
39 41 BUILDDIR=${BASEDIR}/build
40 42
41 43 # General settings
42 44 HOSTNAME=${HOSTNAME:=rpi2-${RELEASE}}
43 45 PASSWORD=${PASSWORD:=raspberry}
44 46 DEFLOCAL=${DEFLOCAL:="en_US.UTF-8"}
45 47 TIMEZONE=${TIMEZONE:="Europe/Berlin"}
46 48
47 49 # APT settings
48 50 APT_PROXY=${APT_PROXY:=""}
49 51 APT_SERVER=${APT_SERVER:="ftp.debian.org"}
50 52
51 53 # Feature settings
52 54 ENABLE_CONSOLE=${ENABLE_CONSOLE:=true}
53 55 ENABLE_IPV6=${ENABLE_IPV6:=true}
54 56 ENABLE_SSHD=${ENABLE_SSHD:=true}
55 57 ENABLE_SOUND=${ENABLE_SOUND:=true}
56 58 ENABLE_DBUS=${ENABLE_DBUS:=true}
57 59 ENABLE_HWRANDOM=${ENABLE_HWRANDOM:=true}
58 60 ENABLE_MINGPU=${ENABLE_MINGPU:=false}
59 61 ENABLE_XORG=${ENABLE_XORG:=false}
60 62 ENABLE_FLUXBOX=${ENABLE_FLUXBOX:=false}
61 63
62 64 # Advanced settings
63 65 ENABLE_MINBASE=${ENABLE_MINBASE:=false}
64 66 ENABLE_UBOOT=${ENABLE_UBOOT:=false}
65 67 ENABLE_FBTURBO=${ENABLE_FBTURBO:=false}
66 68 ENABLE_HARDNET=${ENABLE_HARDNET:=false}
67 69 ENABLE_IPTABLES=${ENABLE_IPTABLES:=false}
68 70
69 71 # Image chroot path
70 72 R=${BUILDDIR}/chroot
71 73
72 74 # Packages required for bootstrapping
73 75 REQUIRED_PACKAGES="debootstrap debian-archive-keyring qemu-user-static dosfstools rsync bmap-tools whois git-core"
74 76
75 77 # Missing packages that need to be installed
76 78 MISSING_PACKAGES=""
77 79
78 80 # Packages required in the chroot build environment
79 81 APT_INCLUDES="apt-transport-https,ca-certificates,debian-archive-keyring,dialog,sudo"
80 82
81 83 set +x
82 84
83 85 # Are we running as root?
84 86 if [ "$(id -u)" -ne "0" ] ; then
85 87 echo "this script must be executed with root privileges"
86 88 exit 1
87 89 fi
88 90
89 91 # Check if all required packages are installed
90 92 for package in $REQUIRED_PACKAGES ; do
91 93 if [ "`dpkg-query -W -f='${Status}' $package`" != "install ok installed" ] ; then
92 94 MISSING_PACKAGES="$MISSING_PACKAGES $package"
93 95 fi
94 96 done
95 97
96 98 # Ask if missing packages should get installed right now
97 99 if [ -n "$MISSING_PACKAGES" ] ; then
98 100 echo "the following packages needed by this script are not installed:"
99 101 echo "$MISSING_PACKAGES"
100 102
101 103 echo -n "\ndo you want to install the missing packages right now? [y/n] "
102 104 read confirm
103 105 if [ "$confirm" != "y" ] ; then
104 106 exit 1
105 107 fi
106 108 fi
107 109
108 110 # Make sure all required packages are installed
109 111 apt-get -qq -y install ${REQUIRED_PACKAGES}
110 112
111 113 # Don't clobber an old build
112 114 if [ -e "$BUILDDIR" ]; then
113 115 echo "directory $BUILDDIR already exists, not proceeding"
114 116 exit 1
115 117 fi
116 118
117 119 set -x
118 120
119 121 # Call "cleanup" function on various signals and errors
120 122 trap cleanup 0 1 2 3 6
121 123
122 124 # Set up chroot directory
123 125 mkdir -p $R
124 126
125 127 # Add required packages for the minbase installation
126 128 if [ "$ENABLE_MINBASE" = true ] ; then
127 129 APT_INCLUDES="${APT_INCLUDES},vim-tiny,netbase,net-tools"
128 130 else
129 131 APT_INCLUDES="${APT_INCLUDES},locales"
130 132 fi
131 133
132 134 # Add dbus package, recommended if using systemd
133 135 if [ "$ENABLE_DBUS" = true ] ; then
134 136 APT_INCLUDES="${APT_INCLUDES},dbus"
135 137 fi
136 138
137 139 # Add iptables IPv4/IPv6 package
138 140 if [ "$ENABLE_IPTABLES" = true ] ; then
139 141 APT_INCLUDES="${APT_INCLUDES},iptables"
140 142 fi
141 143
142 144 # Add openssh server package
143 145 if [ "$ENABLE_SSHD" = true ] ; then
144 146 APT_INCLUDES="${APT_INCLUDES},openssh-server"
145 147 fi
146 148
149 # Add alsa-utils package
150 if [ "$ENABLE_SOUND" = true ] ; then
151 APT_INCLUDES="${APT_INCLUDES},alsa-utils"
152 fi
153
147 154 # Add rng-tools package
148 155 if [ "$ENABLE_HWRANDOM" = true ] ; then
149 156 APT_INCLUDES="${APT_INCLUDES},rng-tools"
150 157 fi
151 158
152 159 # Add fbturbo video driver
153 160 if [ "$ENABLE_FBTURBO" = true ] ; then
154 161 # Enable xorg package dependencies
155 162 ENABLE_XORG=true
156 163 fi
157 164
158 165 # Add fluxbox package with eterm
159 166 if [ "$ENABLE_FLUXBOX" = true ] ; then
160 167 APT_INCLUDES="${APT_INCLUDES},fluxbox,eterm"
161 168
162 169 # Enable xorg package dependencies
163 170 ENABLE_XORG=true
164 171 fi
165 172
166 173 # Add xorg package
167 174 if [ "$ENABLE_XORG" = true ] ; then
168 175 APT_INCLUDES="${APT_INCLUDES},xorg"
169 176 fi
170 177
171 178 # Set empty proxy string
172 179 if [ -z "$APT_PROXY" ] ; then
173 180 APT_PROXY="http://"
174 181 fi
175 182
176 183 # Base debootstrap (unpack only)
177 184 if [ "$ENABLE_MINBASE" = true ] ; then
178 185 debootstrap --arch=armhf --variant=minbase --foreign --include=${APT_INCLUDES} $RELEASE $R ${APT_PROXY}${APT_SERVER}/debian
179 186 else
180 187 debootstrap --arch=armhf --foreign --include=${APT_INCLUDES} $RELEASE $R ${APT_PROXY}${APT_SERVER}/debian
181 188 fi
182 189
183 190 # Copy qemu emulator binary to chroot
184 191 cp /usr/bin/qemu-arm-static $R/usr/bin
185 192
186 193 # Copy debian-archive-keyring.pgp
187 194 chroot $R mkdir -p /usr/share/keyrings
188 195 cp /usr/share/keyrings/debian-archive-keyring.gpg $R/usr/share/keyrings/debian-archive-keyring.gpg
189 196
190 197 # Complete the bootstrapping process
191 198 chroot $R /debootstrap/debootstrap --second-stage
192 199
193 200 # Mount required filesystems
194 201 mount -t proc none $R/proc
195 202 mount -t sysfs none $R/sys
196 203 mount --bind /dev/pts $R/dev/pts
197 204
198 205 # Use proxy inside chroot
199 206 if [ -z "$APT_PROXY" ] ; then
200 207 echo "Acquire::http::Proxy \"$APT_PROXY\"" >> $R/etc/apt/apt.conf.d/10proxy
201 208 fi
202 209
203 210 # Pin package flash-kernel to repositories.collabora.co.uk
204 211 cat <<EOM >$R/etc/apt/preferences.d/flash-kernel
205 212 Package: flash-kernel
206 213 Pin: origin repositories.collabora.co.uk
207 214 Pin-Priority: 1000
208 215 EOM
209 216
210 217 # Set up timezone
211 218 echo ${TIMEZONE} >$R/etc/timezone
212 219 LANG=C chroot $R dpkg-reconfigure -f noninteractive tzdata
213 220
214 221 # Set up default locales to "en_US.UTF-8" default
215 222 if [ "$ENABLE_MINBASE" = false ] ; then
216 223 LANG=C chroot $R sed -i '/${DEFLOCAL}/s/^#//' /etc/locale.gen
217 224 LANG=C chroot $R locale-gen ${DEFLOCAL}
218 225 fi
219 226
220 227 # Upgrade collabora package index and install collabora keyring
221 228 echo "deb https://repositories.collabora.co.uk/debian ${RELEASE} rpi2" >$R/etc/apt/sources.list
222 229 LANG=C chroot $R apt-get -qq -y update
223 230 LANG=C chroot $R apt-get -qq -y --force-yes install collabora-obs-archive-keyring
224 231
225 232 # Set up initial sources.list
226 233 cat <<EOM >$R/etc/apt/sources.list
227 234 deb http://${APT_SERVER}/debian ${RELEASE} main contrib
228 235 #deb-src http://${APT_SERVER}/debian ${RELEASE} main contrib
229 236
230 237 deb http://${APT_SERVER}/debian/ ${RELEASE}-updates main contrib
231 238 #deb-src http://${APT_SERVER}/debian/ ${RELEASE}-updates main contrib
232 239
233 240 deb http://security.debian.org/ ${RELEASE}/updates main contrib
234 241 #deb-src http://security.debian.org/ ${RELEASE}/updates main contrib
235 242
236 243 deb https://repositories.collabora.co.uk/debian ${RELEASE} rpi2
237 244 EOM
238 245
239 246 # Upgrade package index and update all installed packages and changed dependencies
240 247 LANG=C chroot $R apt-get -qq -y update
241 248 LANG=C chroot $R apt-get -qq -y -u dist-upgrade
242 249
243 250 # Kernel installation
244 251 # Install flash-kernel last so it doesn't try (and fail) to detect the platform in the chroot
245 252 LANG=C chroot $R apt-get -qq -y --no-install-recommends install linux-image-3.18.0-trunk-rpi2
246 253 LANG=C chroot $R apt-get -qq -y install flash-kernel
247 254
248 255 VMLINUZ="$(ls -1 $R/boot/vmlinuz-* | sort | tail -n 1)"
249 256 [ -z "$VMLINUZ" ] && exit 1
250 257 mkdir -p $R/boot/firmware
251 258
252 259 # required boot binaries from raspberry/firmware github (commit: "kernel: Bump to 3.18.10")
253 260 wget -q -O $R/boot/firmware/bootcode.bin https://github.com/raspberrypi/firmware/raw/cd355a9dd4f1f4de2e79b0c8e102840885cdf1de/boot/bootcode.bin
254 261 wget -q -O $R/boot/firmware/fixup_cd.dat https://github.com/raspberrypi/firmware/raw/cd355a9dd4f1f4de2e79b0c8e102840885cdf1de/boot/fixup_cd.dat
255 262 wget -q -O $R/boot/firmware/fixup.dat https://github.com/raspberrypi/firmware/raw/cd355a9dd4f1f4de2e79b0c8e102840885cdf1de/boot/fixup.dat
256 263 wget -q -O $R/boot/firmware/fixup_x.dat https://github.com/raspberrypi/firmware/raw/cd355a9dd4f1f4de2e79b0c8e102840885cdf1de/boot/fixup_x.dat
257 264 wget -q -O $R/boot/firmware/start_cd.elf https://github.com/raspberrypi/firmware/raw/cd355a9dd4f1f4de2e79b0c8e102840885cdf1de/boot/start_cd.elf
258 265 wget -q -O $R/boot/firmware/start.elf https://github.com/raspberrypi/firmware/raw/cd355a9dd4f1f4de2e79b0c8e102840885cdf1de/boot/start.elf
259 266 wget -q -O $R/boot/firmware/start_x.elf https://github.com/raspberrypi/firmware/raw/cd355a9dd4f1f4de2e79b0c8e102840885cdf1de/boot/start_x.elf
260 267 cp $VMLINUZ $R/boot/firmware/kernel7.img
261 268
262 # Set up hosts
269 # Set up IPv4 hosts
263 270 echo ${HOSTNAME} >$R/etc/hostname
264 271 cat <<EOM >$R/etc/hosts
265 272 127.0.0.1 localhost
266 273 127.0.1.1 ${HOSTNAME}
267 274 EOM
268 275
276 # Set up IPv6 hosts
269 277 if [ "$ENABLE_IPV6" = true ] ; then
270 278 cat <<EOM >>$R/etc/hosts
271 279
272 280 ::1 localhost ip6-localhost ip6-loopback
273 281 ff02::1 ip6-allnodes
274 282 ff02::2 ip6-allrouters
275 283 EOM
276 284 fi
277 285
286 # Place hint about network configuration
287 cat <<EOM >$R/etc/network/interfaces
288 # Debian switched to systemd-networkd configuration files.
289 # please configure your networks in '/etc/systemd/network/'
290 EOM
291
292 # Enable systemd-networkd DHCP configuration for interface eth0
293 cat <<EOM >$R/etc/systemd/network/eth.network
294 [Match]
295 Name=eth0
296
297 [Network]
298 DHCP=yes
299 EOM
300
301 # Set DHCP configuration to IPv4 only
302 if [ "$ENABLE_IPV6" = false ] ; then
303 sed -i "s/=yes/=v4/" $R/etc/systemd/network/eth.network
304 fi
305
306 # Enable systemd-networkd service
307 LANG=C chroot $R systemctl enable systemd-networkd
308
278 309 # Generate crypt(3) password string
279 310 ENCRYPTED_PASSWORD=`mkpasswd -m sha-512 ${PASSWORD}`
280 311
281 312 # Set up default user
282 313 LANG=C chroot $R adduser --gecos "Raspberry PI user" --add_extra_groups --disabled-password pi
283 314 LANG=C chroot $R usermod -a -G sudo -p "${ENCRYPTED_PASSWORD}" pi
284 315
285 316 # Set up root password
286 317 LANG=C chroot $R usermod -p "${ENCRYPTED_PASSWORD}" root
287 318
288 # Set up interfaces
289 cat <<EOM >$R/etc/network/interfaces
290 # interfaces(5) file used by ifup(8) and ifdown(8)
291 # Include files from /etc/network/interfaces.d:
292 source-directory /etc/network/interfaces.d
293
294 # The loopback network interface
295 auto lo
296 iface lo inet loopback
297
298 # The primary network interface
299 allow-hotplug eth0
300 iface eth0 inet dhcp
301 EOM
302
303 319 # Set up firmware boot cmdline
304 320 CMDLINE="dwc_otg.lpm_enable=0 root=/dev/mmcblk0p2 rootfstype=ext4 rootflags=commit=100,data=writeback elevator=deadline rootwait net.ifnames=1 console=tty1"
305 321
306 322 # Set up serial console support (if requested)
307 323 if [ "$ENABLE_CONSOLE" = true ] ; then
308 324 CMDLINE="${CMDLINE} console=ttyAMA0,115200 kgdboc=ttyAMA0,115200"
309 325 fi
310 326
311 327 # Set up IPv6 networking support
312 328 if [ "$ENABLE_IPV6" = false ] ; then
313 329 CMDLINE="${CMDLINE} ipv6.disable=1"
314 330 fi
315 331
316 332 echo "${CMDLINE}" >$R/boot/firmware/cmdline.txt
317 333
318 334 # Set up firmware config
319 335 cat <<EOM >$R/boot/firmware/config.txt
320 336 # For more options and information see
321 337 # http://www.raspberrypi.org/documentation/configuration/config-txt.md
322 338 # Some settings may impact device functionality. See link above for details
323 339
324 340 # uncomment if you get no picture on HDMI for a default "safe" mode
325 341 #hdmi_safe=1
326 342
327 343 # uncomment this if your display has a black border of unused pixels visible
328 344 # and your display can output without overscan
329 345 #disable_overscan=1
330 346
331 347 # uncomment the following to adjust overscan. Use positive numbers if console
332 348 # goes off screen, and negative if there is too much border
333 349 #overscan_left=16
334 350 #overscan_right=16
335 351 #overscan_top=16
336 352 #overscan_bottom=16
337 353
338 354 # uncomment to force a console size. By default it will be display's size minus
339 355 # overscan.
340 356 #framebuffer_width=1280
341 357 #framebuffer_height=720
342 358
343 359 # uncomment if hdmi display is not detected and composite is being output
344 360 #hdmi_force_hotplug=1
345 361
346 362 # uncomment to force a specific HDMI mode (this will force VGA)
347 363 #hdmi_group=1
348 364 #hdmi_mode=1
349 365
350 366 # uncomment to force a HDMI mode rather than DVI. This can make audio work in
351 367 # DMT (computer monitor) modes
352 368 #hdmi_drive=2
353 369
354 370 # uncomment to increase signal to HDMI, if you have interference, blanking, or
355 371 # no display
356 372 #config_hdmi_boost=4
357 373
358 374 # uncomment for composite PAL
359 375 #sdtv_mode=2
360 376
361 377 # uncomment to overclock the arm. 700 MHz is the default.
362 378 #arm_freq=800
363 379 EOM
364 380
381 # Load snd_bcm2835 kernel module at boot time
382 if [ "$ENABLE_SOUND" = true ] ; then
383 echo "snd_bcm2835" >>$R/etc/modules
384 fi
385
365 386 # Set smallest possible GPU memory allocation size: 16MB (no X)
366 387 if [ "$ENABLE_MINGPU" = true ] ; then
367 388 echo "gpu_mem=16" >>$R/boot/firmware/config.txt
368 389 fi
369 390
370 391 # Create symlinks
371 392 ln -sf firmware/config.txt $R/boot/config.txt
372 393 ln -sf firmware/cmdline.txt $R/boot/cmdline.txt
373 394
374 395 # Prepare modules-load.d directory
375 396 mkdir -p $R/lib/modules-load.d/
376 397
377 398 # Load random module on boot
378 399 if [ "$ENABLE_HWRANDOM" = true ] ; then
379 400 cat <<EOM >$R/lib/modules-load.d/rpi2.conf
380 401 bcm2708_rng
381 402 EOM
382 403 fi
383 404
384 405 # Prepare modprobe.d directory
385 406 mkdir -p $R/etc/modprobe.d/
386 407
387 408 # Blacklist sound modules
388 409 cat <<EOM >$R/etc/modprobe.d/raspi-blacklist.conf
389 410 blacklist snd_soc_core
390 411 blacklist snd_pcm
391 412 blacklist snd_pcm_dmaengine
392 413 blacklist snd_timer
393 414 blacklist snd_compress
394 415 blacklist snd_soc_pcm512x_i2c
395 416 blacklist snd_soc_pcm512x
396 417 blacklist snd_soc_tas5713
397 418 blacklist snd_soc_wm8804
398 419 EOM
399 420
400 421 # Create default fstab
401 422 cat <<EOM >$R/etc/fstab
402 423 /dev/mmcblk0p2 / ext4 noatime,nodiratime,errors=remount-ro,discard,data=writeback,commit=100 0 1
403 424 /dev/mmcblk0p1 /boot/firmware vfat defaults,noatime,nodiratime 0 2
404 425 EOM
405 426
406 427 # Avoid swapping and increase cache sizes
407 428 cat <<EOM >>$R/etc/sysctl.d/99-sysctl.conf
408 429
409 430 # Avoid swapping and increase cache sizes
410 431 vm.swappiness=1
411 432 vm.dirty_background_ratio=20
412 433 vm.dirty_ratio=40
413 434 vm.dirty_writeback_centisecs=500
414 435 vm.dirty_expire_centisecs=6000
415 436 EOM
416 437
417 438 # Enable network stack hardening
418 439 if [ "$ENABLE_HARDNET" = true ] ; then
419 440 cat <<EOM >>$R/etc/sysctl.d/99-sysctl.conf
420 441
421 442 # Enable network stack hardening
422 443 net.ipv4.tcp_timestamps=0
423 444 net.ipv4.tcp_syncookies=1
424 445 net.ipv4.conf.all.rp_filter=1
425 446 net.ipv4.conf.all.accept_redirects=0
426 447 net.ipv4.conf.all.send_redirects=0
427 448 net.ipv4.conf.all.accept_source_route=0
428 449 net.ipv4.conf.default.rp_filter=1
429 450 net.ipv4.conf.default.accept_redirects=0
430 451 net.ipv4.conf.default.send_redirects=0
431 452 net.ipv4.conf.default.accept_source_route=0
432 453 net.ipv4.conf.lo.accept_redirects=0
433 454 net.ipv4.conf.lo.send_redirects=0
434 455 net.ipv4.conf.lo.accept_source_route=0
435 456 net.ipv4.conf.eth0.accept_redirects=0
436 457 net.ipv4.conf.eth0.send_redirects=0
437 458 net.ipv4.conf.eth0.accept_source_route=0
438 459 net.ipv4.icmp_echo_ignore_broadcasts=1
439 460 net.ipv4.icmp_ignore_bogus_error_responses=1
440 461
441 462 net.ipv6.conf.all.accept_redirects=0
442 463 net.ipv6.conf.all.accept_source_route=0
443 464 net.ipv6.conf.all.router_solicitations=0
444 465 net.ipv6.conf.all.accept_ra_rtr_pref=0
445 466 net.ipv6.conf.all.accept_ra_pinfo=0
446 467 net.ipv6.conf.all.accept_ra_defrtr=0
447 468 net.ipv6.conf.all.autoconf=0
448 469 net.ipv6.conf.all.dad_transmits=0
449 470 net.ipv6.conf.all.max_addresses=1
450 471
451 472 net.ipv6.conf.default.accept_redirects=0
452 473 net.ipv6.conf.default.accept_source_route=0
453 474 net.ipv6.conf.default.router_solicitations=0
454 475 net.ipv6.conf.default.accept_ra_rtr_pref=0
455 476 net.ipv6.conf.default.accept_ra_pinfo=0
456 477 net.ipv6.conf.default.accept_ra_defrtr=0
457 478 net.ipv6.conf.default.autoconf=0
458 479 net.ipv6.conf.default.dad_transmits=0
459 480 net.ipv6.conf.default.max_addresses=1
460 481
461 482 net.ipv6.conf.lo.accept_redirects=0
462 483 net.ipv6.conf.lo.accept_source_route=0
463 484 net.ipv6.conf.lo.router_solicitations=0
464 485 net.ipv6.conf.lo.accept_ra_rtr_pref=0
465 486 net.ipv6.conf.lo.accept_ra_pinfo=0
466 487 net.ipv6.conf.lo.accept_ra_defrtr=0
467 488 net.ipv6.conf.lo.autoconf=0
468 489 net.ipv6.conf.lo.dad_transmits=0
469 490 net.ipv6.conf.lo.max_addresses=1
470 491
471 492 net.ipv6.conf.eth0.accept_redirects=0
472 493 net.ipv6.conf.eth0.accept_source_route=0
473 494 net.ipv6.conf.eth0.router_solicitations=0
474 495 net.ipv6.conf.eth0.accept_ra_rtr_pref=0
475 496 net.ipv6.conf.eth0.accept_ra_pinfo=0
476 497 net.ipv6.conf.eth0.accept_ra_defrtr=0
477 498 net.ipv6.conf.eth0.autoconf=0
478 499 net.ipv6.conf.eth0.dad_transmits=0
479 500 net.ipv6.conf.eth0.max_addresses=1
480 501 EOM
481 502
482 503 # Enable resolver warnings about spoofed addresses
483 504 cat <<EOM >>$R/etc/host.conf
484 505 spoof warn
485 506 EOM
486 507 fi
487 508
488 509 # Regenerate openssh server host keys
489 510 if [ "$ENABLE_SSHD" = true ] ; then
490 511 rm -fr $R/etc/ssh/ssh_host_*
491 512 LANG=C chroot $R dpkg-reconfigure openssh-server
492 513 fi
493 514
494 515 # Enable serial console systemd style
495 516 if [ "$ENABLE_CONSOLE" = true ] ; then
496 517 LANG=C chroot $R systemctl enable serial-getty\@ttyAMA0.service
497 518 fi
498 519
499 520 # Enable firewall based on iptables started by systemd service
500 521 if [ "$ENABLE_IPTABLES" = true ] ; then
501 522 # Create iptables configuration directory
502 523 mkdir -p "$R/etc/iptables"
503 524
504 525 # Create iptables systemd service
505 526 cat <<EOM >$R/etc/systemd/system/iptables.service
506 527 [Unit]
507 528 Description=Packet Filtering Framework
508 529 DefaultDependencies=no
509 530 After=systemd-sysctl.service
510 531 Before=sysinit.target
511 532 [Service]
512 533 Type=oneshot
513 534 ExecStart=/sbin/iptables-restore /etc/iptables/iptables.rules
514 535 ExecReload=/sbin/iptables-restore /etc/iptables/iptables.rules
515 536 ExecStop=/etc/iptables/flush-iptables.sh
516 537 RemainAfterExit=yes
517 538 [Install]
518 539 WantedBy=multi-user.target
519 540 EOM
520 541
521 542 # Create flush-table script called by iptables service
522 543 cat <<EOM >$R/etc/iptables/flush-iptables.sh
523 544 #!/bin/sh
524 545 iptables -F
525 546 iptables -X
526 547 iptables -t nat -F
527 548 iptables -t nat -X
528 549 iptables -t mangle -F
529 550 iptables -t mangle -X
530 551 iptables -P INPUT ACCEPT
531 552 iptables -P FORWARD ACCEPT
532 553 iptables -P OUTPUT ACCEPT
533 554 EOM
534 555
535 556 # Create iptables rule file
536 557 cat <<EOM >$R/etc/iptables/iptables.rules
537 558 *filter
538 559 :INPUT DROP [0:0]
539 560 :FORWARD DROP [0:0]
540 561 :OUTPUT ACCEPT [0:0]
541 562 :TCP - [0:0]
542 563 :UDP - [0:0]
543 564 :SSH - [0:0]
544 565
545 566 # Rate limit ping requests
546 567 -A INPUT -p icmp --icmp-type echo-request -m limit --limit 30/min --limit-burst 8 -j ACCEPT
547 568 -A INPUT -p icmp --icmp-type echo-request -j DROP
548 569
549 570 # Accept established connections
550 571 -A INPUT -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
551 572
552 573 # Accept all traffic on loopback interface
553 574 -A INPUT -i lo -j ACCEPT
554 575
555 576 # Drop packets declared invalid
556 577 -A INPUT -m conntrack --ctstate INVALID -j DROP
557 578
558 579 # SSH rate limiting
559 580 -A INPUT -p tcp --dport ssh -m conntrack --ctstate NEW -j SSH
560 581 -A SSH -m recent --name sshbf --rttl --rcheck --hitcount 3 --seconds 10 -j DROP
561 582 -A SSH -m recent --name sshbf --rttl --rcheck --hitcount 20 --seconds 1800 -j DROP
562 583 -A SSH -m recent --name sshbf --set -j ACCEPT
563 584
564 585 # Send TCP and UDP connections to their respective rules chain
565 586 -A INPUT -p udp -m conntrack --ctstate NEW -j UDP
566 587 -A INPUT -p tcp --syn -m conntrack --ctstate NEW -j TCP
567 588
568 589 # Reject dropped packets with a RFC compliant responce
569 590 -A INPUT -p udp -j REJECT --reject-with icmp-port-unreachable
570 591 -A INPUT -p tcp -j REJECT --reject-with tcp-rst
571 592 -A INPUT -j REJECT --reject-with icmp-proto-unreachable
572 593
573 594 ## TCP PORT RULES
574 595 # -A TCP -p tcp -j LOG
575 596
576 597 ## UDP PORT RULES
577 598 # -A UDP -p udp -j LOG
578 599
579 600 COMMIT
580 601 EOM
581 602
582 603 # Reload systemd configuration and enable iptables service
583 604 LANG=C chroot $R systemctl daemon-reload
584 605 LANG=C chroot $R systemctl enable iptables.service
585 606
586 607 if [ "$ENABLE_IPV6" = true ] ; then
587 608 # Create ip6tables systemd service
588 609 cat <<EOM >$R/etc/systemd/system/ip6tables.service
589 610 [Unit]
590 611 Description=Packet Filtering Framework
591 612 DefaultDependencies=no
592 613 After=systemd-sysctl.service
593 614 Before=sysinit.target
594 615 [Service]
595 616 Type=oneshot
596 617 ExecStart=/sbin/ip6tables-restore /etc/iptables/ip6tables.rules
597 618 ExecReload=/sbin/ip6tables-restore /etc/iptables/ip6tables.rules
598 619 ExecStop=/etc/iptables/flush-ip6tables.sh
599 620 RemainAfterExit=yes
600 621 [Install]
601 622 WantedBy=multi-user.target
602 623 EOM
603 624
604 625 # Create ip6tables file
605 626 cat <<EOM >$R/etc/iptables/flush-ip6tables.sh
606 627 #!/bin/sh
607 628 ip6tables -F
608 629 ip6tables -X
609 630 ip6tables -Z
610 631 for table in $(</proc/net/ip6_tables_names)
611 632 do
612 633 ip6tables -t \$table -F
613 634 ip6tables -t \$table -X
614 635 ip6tables -t \$table -Z
615 636 done
616 637 ip6tables -P INPUT ACCEPT
617 638 ip6tables -P OUTPUT ACCEPT
618 639 ip6tables -P FORWARD ACCEPT
619 640 EOM
620 641
621 642 # Create ip6tables rule file
622 643 cat <<EOM >$R/etc/iptables/ip6tables.rules
623 644 *filter
624 645 :INPUT DROP [0:0]
625 646 :FORWARD DROP [0:0]
626 647 :OUTPUT ACCEPT [0:0]
627 648 :TCP - [0:0]
628 649 :UDP - [0:0]
629 650 :SSH - [0:0]
630 651
631 652 # Drop packets with RH0 headers
632 653 -A INPUT -m rt --rt-type 0 -j DROP
633 654 -A OUTPUT -m rt --rt-type 0 -j DROP
634 655 -A FORWARD -m rt --rt-type 0 -j DROP
635 656
636 657 # Rate limit ping requests
637 658 -A INPUT -p icmpv6 --icmpv6-type echo-request -m limit --limit 30/min --limit-burst 8 -j ACCEPT
638 659 -A INPUT -p icmpv6 --icmpv6-type echo-request -j DROP
639 660
640 661 # Accept established connections
641 662 -A INPUT -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
642 663
643 664 # Accept all traffic on loopback interface
644 665 -A INPUT -i lo -j ACCEPT
645 666
646 667 # Drop packets declared invalid
647 668 -A INPUT -m conntrack --ctstate INVALID -j DROP
648 669
649 670 # SSH rate limiting
650 671 -A INPUT -p tcp --dport ssh -m conntrack --ctstate NEW -j SSH
651 672 -A SSH -m recent --name sshbf --rttl --rcheck --hitcount 3 --seconds 10 -j DROP
652 673 -A SSH -m recent --name sshbf --rttl --rcheck --hitcount 20 --seconds 1800 -j DROP
653 674 -A SSH -m recent --name sshbf --set -j ACCEPT
654 675
655 676 # Send TCP and UDP connections to their respective rules chain
656 677 -A INPUT -p udp -m conntrack --ctstate NEW -j UDP
657 678 -A INPUT -p tcp --syn -m conntrack --ctstate NEW -j TCP
658 679
659 680 # Reject dropped packets with a RFC compliant responce
660 681 -A INPUT -p udp -j REJECT --reject-with icmp6-adm-prohibited
661 682 -A INPUT -p tcp -j REJECT --reject-with icmp6-adm-prohibited
662 683 -A INPUT -j REJECT --reject-with icmp6-adm-prohibited
663 684
664 685 ## TCP PORT RULES
665 686 # -A TCP -p tcp -j LOG
666 687
667 688 ## UDP PORT RULES
668 689 # -A UDP -p udp -j LOG
669 690
670 691 COMMIT
671 692 EOM
672 693
673 694 # Reload systemd configuration and enable iptables service
674 695 LANG=C chroot $R systemctl daemon-reload
675 696 LANG=C chroot $R systemctl enable ip6tables.service
676 697 fi
677 698 fi
678 699
679 700 # Remove SSHD related iptables rules
680 701 if [ "$ENABLE_SSHD" = false ] ; then
681 702 sed -e '/^#/! {/SSH/ s/^/# /}' -i $R/etc/iptables/iptables.rules 2> /dev/null
682 703 sed -e '/^#/! {/SSH/ s/^/# /}' -i $R/etc/iptables/ip6tables.rules 2> /dev/null
683 704 fi
684 705
685 706 # Install gcc/c++ build environment inside the chroot
686 707 if [ "$ENABLE_UBOOT" = true ] || [ "$ENABLE_FBTURBO" = true ]; then
687 # Install minimal gcc/g++ build environment
688 708 LANG=C chroot $R apt-get install -q -y --force-yes --no-install-recommends linux-compiler-gcc-4.9-arm g++ make bc
689 709 fi
690 710
691 711 # Fetch and build U-Boot bootloader
692 712 if [ "$ENABLE_UBOOT" = true ] ; then
693 713 # Fetch U-Boot bootloader sources
694 714 git -C $R/tmp clone git://git.denx.de/u-boot.git
695 715
696 716 # Build and install U-Boot inside chroot
697 717 LANG=C chroot $R make -C /tmp/u-boot/ rpi_2_defconfig all
698 718
699 719 # Copy compiled bootloader binary and set config.txt to load it
700 720 cp $R/tmp/u-boot/u-boot.bin $R/boot/firmware/
701 721 printf "\n# boot u-boot kernel\nkernel=u-boot.bin\n" >> $R/boot/firmware/config.txt
702 722
703 723 # Set U-Boot command file
704 724 cat <<EOM >$R/boot/firmware/uboot.mkimage
705 725 # Tell Linux that it is booting on a Raspberry Pi2
706 726 setenv machid 0x00000c42
707 727
708 728 # Set the kernel boot command line
709 729 setenv bootargs "earlyprintk ${CMDLINE}"
710 730
711 731 # Save these changes to u-boot's environment
712 732 saveenv
713 733
714 734 # Load the existing Linux kernel into RAM
715 735 fatload mmc 0:1 \${kernel_addr_r} kernel7.img
716 736
717 737 # Boot the kernel we have just loaded
718 738 bootz \${kernel_addr_r}
719 739 EOM
720 740
721 741 # Generate U-Boot image from command file
722 742 LANG=C chroot $R mkimage -A arm -O linux -T script -C none -a 0x00000000 -e 0x00000000 -n "RPi2 Boot Script" -d /boot/firmware/uboot.mkimage /boot/firmware/boot.scr
723 743 fi
724 744
725
726 745 # Fetch and build fbturbo Xorg driver
727 746 if [ "$ENABLE_FBTURBO" = true ] ; then
728 747 # Fetch fbturbo driver sources
729 748 git -C $R/tmp clone https://github.com/ssvb/xf86-video-fbturbo.git
730 749
731 750 # Install Xorg build dependencies
732 751 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
733 752
734 753 # Build and install fbturbo driver inside chroot
735 754 LANG=C chroot $R /bin/bash -c "cd /tmp/xf86-video-fbturbo; autoreconf -vi; ./configure --prefix=/usr; make; make install"
736 755
737 756 # Add fbturbo driver to Xorg configuration
738 757 cat <<EOM >$R/usr/share/X11/xorg.conf.d/99-fbturbo.conf
739 758 Section "Device"
740 759 Identifier "Allwinner A10/A13 FBDEV"
741 760 Driver "fbturbo"
742 761 Option "fbdev" "/dev/fb0"
743 762 Option "SwapbuffersWait" "true"
744 763 EndSection
745 764 EOM
746 765
747 766 # Remove Xorg build dependencies
748 767 LANG=C chroot $R apt-get -q -y purge --auto-remove xorg-dev xutils-dev x11proto-dri2-dev libltdl-dev libtool automake libdrm-dev
749 768 fi
750 769
751 770 # Remove gcc/c++ build environment from the chroot
752 771 if [ "$ENABLE_UBOOT" = true ] || [ "$ENABLE_FBTURBO" = true ]; then
753 # Remove minimal gcc/c++ build environment
754 772 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
755 773 fi
756 774
757 # Enable systemd-networkd DHCP configuration for the eth0 interface
758 printf "[Match]\nName=eth0\n\n[Network]\nDHCP=yes\n" > $R/etc/systemd/network/eth.network
759
760 # Set DHCP configuration to IPv4 only
761 if [ "$ENABLE_IPV6" = false ] ; then
762 sed -i "s/=yes/=v4/" $R/etc/systemd/network/eth.network
763 fi
764
765 # Enable systemd-networkd service
766 LANG=C chroot $R systemctl enable systemd-networkd
767
768 # Place hint about netowrk configuration
769 cat <<EOM >$R/etc/network/interfaces
770 # Debian switched to systemd-networkd configuration files.
771 # please configure your networks in '/etc/systemd/network/'
772 EOM
773
774 775 # Clean cached downloads
775 776 LANG=C chroot $R apt-get -y clean
776 777 LANG=C chroot $R apt-get -y autoclean
777 778 LANG=C chroot $R apt-get -y autoremove
778 779
779 780 # Unmount mounted filesystems
780 781 umount -l $R/proc
781 782 umount -l $R/sys
782 783
783 784 # Clean up files
784 785 rm -f $R/etc/apt/sources.list.save
785 786 rm -f $R/etc/resolvconf/resolv.conf.d/original
786 787 rm -rf $R/run
787 788 mkdir -p $R/run
788 789 rm -f $R/etc/*-
789 790 rm -f $R/root/.bash_history
790 791 rm -rf $R/tmp/*
791 792 rm -f $R/var/lib/urandom/random-seed
792 793 [ -L $R/var/lib/dbus/machine-id ] || rm -f $R/var/lib/dbus/machine-id
793 794 rm -f $R/etc/machine-id
794 795 rm -fr $R/etc/apt/apt.conf.d/10proxy
795 796
796 797 # Calculate size of the chroot directory
797 798 CHROOT_SIZE=$(expr `du -s $R | awk '{ print $1 }'` / 1024)
798 799
799 800 # Calculate required image size
800 801 IMAGE_SIZE=`expr $(expr ${CHROOT_SIZE} / 1024 + 1) \* 1024`
801 802
802 803 # Calculate number of sectors for the partition
803 804 IMAGE_SECTORS=`expr $(expr ${IMAGE_SIZE} \* 1048576) / 512 - 133120`
804 805
805 806 # Prepare date string for image file name
806 807 DATE="$(date +%Y-%m-%d)"
807 808
808 809 # Prepare image file
809 810 dd if=/dev/zero of="$BASEDIR/${DATE}-debian-${RELEASE}.img" bs=1M count=1
810 811 dd if=/dev/zero of="$BASEDIR/${DATE}-debian-${RELEASE}.img" bs=1M count=0 seek=${IMAGE_SIZE}
811 812
812 813 # Write partition table
813 814 sfdisk -q -L -f "$BASEDIR/${DATE}-debian-${RELEASE}.img" <<EOM
814 815 unit: sectors
815 816
816 817 1 : start= 2048, size= 131072, Id= c, bootable
817 818 2 : start= 133120, size= ${IMAGE_SECTORS}, Id=83
818 819 3 : start= 0, size= 0, Id= 0
819 820 4 : start= 0, size= 0, Id= 0
820 821 EOM
821 822
822 823 # Set up temporary loop devices and build filesystems
823 824 VFAT_LOOP="$(losetup -o 1M --sizelimit 64M -f --show $BASEDIR/${DATE}-debian-${RELEASE}.img)"
824 825 EXT4_LOOP="$(losetup -o 65M --sizelimit `expr ${IMAGE_SIZE} - 64`M -f --show $BASEDIR/${DATE}-debian-${RELEASE}.img)"
825 826 mkfs.vfat "$VFAT_LOOP"
826 827 mkfs.ext4 "$EXT4_LOOP"
827 828
828 829 # Mount the temporary loop devices
829 830 mkdir -p "$BUILDDIR/mount"
830 831 mount "$EXT4_LOOP" "$BUILDDIR/mount"
831 832
832 833 mkdir -p "$BUILDDIR/mount/boot/firmware"
833 834 mount "$VFAT_LOOP" "$BUILDDIR/mount/boot/firmware"
834 835
835 836 # Copy all files from the chroot to the loop device mount point directory
836 837 rsync -a "$R/" "$BUILDDIR/mount/"
837 838
838 839 # Unmount all temporary loop devices and mount points
839 840 cleanup
840 841
841 842 # (optinal) create block map file for "bmaptool"
842 843 bmaptool create -o "$BASEDIR/${DATE}-debian-${RELEASE}.bmap" "$BASEDIR/${DATE}-debian-${RELEASE}.img"
843 844
844 845 # Image was successfully created
845 846 echo "$BASEDIR/${DATE}-debian-${RELEASE}.img (${IMAGE_SIZE})" ": successfully created"
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