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1 1 #
2 2 # Build and Setup RPi2/3 Kernel
3 3 #
4 4
5 5 # Load utility functions
6 6 . ./functions.sh
7 7
8 8 # Need to use kali kernel src if nexmon is enabled
9 9 if [ "$ENABLE_NEXMON" = true ] ; then
10 echo "WARNING: if ENABLE_NEXMON is used remember to put the CORRECT KERNELSRC IN KERNELSRC_DIR!!!!!1!"
11 10 KERNEL_URL="${KALI_KERNEL_URL}"
12 11 KERNEL_BRANCH=""
13 12 fi
14 13
15 14 # Fetch and build latest raspberry kernel
16 15 if [ "$BUILD_KERNEL" = true ] ; then
17 16 # Setup source directory
18 17 mkdir -p "${KERNEL_DIR}"
19 18
20 19 # Copy existing kernel sources into chroot directory
21 20 if [ -n "$KERNELSRC_DIR" ] && [ -d "$KERNELSRC_DIR" ] ; then
22 21 # Copy kernel sources and include hidden files
23 22 cp -r "${KERNELSRC_DIR}/". "${KERNEL_DIR}"
24 23
25 24 # Clean the kernel sources
26 25 if [ "$KERNELSRC_CLEAN" = true ] && [ "$KERNELSRC_PREBUILT" = false ] ; then
27 26 make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" mrproper
28 27 fi
29 28 else # KERNELSRC_DIR=""
30 29 # Create temporary directory for kernel sources
31 30 temp_dir=$(as_nobody mktemp -d)
32 31
33 32 # Fetch current RPi2/3 kernel sources
34 33 if [ -z "${KERNEL_BRANCH}" ] ; then
35 34 as_nobody -H git -C "${temp_dir}" clone --depth=1 "${KERNEL_URL}" linux
36 35 else
37 36 as_nobody -H git -C "${temp_dir}" clone --depth=1 --branch "${KERNEL_BRANCH}" "${KERNEL_URL}" linux
38 37 fi
39 38
40 39 # Copy downloaded kernel sources
41 40 cp -r "${temp_dir}/linux/"* "${KERNEL_DIR}"
42 41
43 42 # Remove temporary directory for kernel sources
44 43 rm -fr "${temp_dir}"
45 44
46 45 # Set permissions of the kernel sources
47 46 chown -R root:root "${R}/usr/src"
48 47 fi
49 48
50 49 # Calculate optimal number of kernel building threads
51 50 if [ "$KERNEL_THREADS" = "1" ] && [ -r /proc/cpuinfo ] ; then
52 51 KERNEL_THREADS=$(grep -c processor /proc/cpuinfo)
53 52 fi
54 53
55 54 # Configure and build kernel
56 55 if [ "$KERNELSRC_PREBUILT" = false ] ; then
57 56 # Remove device, network and filesystem drivers from kernel configuration
58 57 if [ "$KERNEL_REDUCE" = true ] ; then
59 58 make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" "${KERNEL_DEFCONFIG}"
60 59 sed -i\
61 60 -e "s/\(^CONFIG_SND.*\=\).*/\1n/"\
62 61 -e "s/\(^CONFIG_SOUND.*\=\).*/\1n/"\
63 62 -e "s/\(^CONFIG_AC97.*\=\).*/\1n/"\
64 63 -e "s/\(^CONFIG_VIDEO_.*\=\).*/\1n/"\
65 64 -e "s/\(^CONFIG_MEDIA_TUNER.*\=\).*/\1n/"\
66 65 -e "s/\(^CONFIG_DVB.*\=\)[ym]/\1n/"\
67 66 -e "s/\(^CONFIG_REISERFS.*\=\).*/\1n/"\
68 67 -e "s/\(^CONFIG_JFS.*\=\).*/\1n/"\
69 68 -e "s/\(^CONFIG_XFS.*\=\).*/\1n/"\
70 69 -e "s/\(^CONFIG_GFS2.*\=\).*/\1n/"\
71 70 -e "s/\(^CONFIG_OCFS2.*\=\).*/\1n/"\
72 71 -e "s/\(^CONFIG_BTRFS.*\=\).*/\1n/"\
73 72 -e "s/\(^CONFIG_HFS.*\=\).*/\1n/"\
74 73 -e "s/\(^CONFIG_JFFS2.*\=\)[ym]/\1n/"\
75 74 -e "s/\(^CONFIG_UBIFS.*\=\).*/\1n/"\
76 75 -e "s/\(^CONFIG_SQUASHFS.*\=\)[ym]/\1n/"\
77 76 -e "s/\(^CONFIG_W1.*\=\)[ym]/\1n/"\
78 77 -e "s/\(^CONFIG_HAMRADIO.*\=\).*/\1n/"\
79 78 -e "s/\(^CONFIG_CAN.*\=\).*/\1n/"\
80 79 -e "s/\(^CONFIG_IRDA.*\=\).*/\1n/"\
81 80 -e "s/\(^CONFIG_BT_.*\=\).*/\1n/"\
82 81 -e "s/\(^CONFIG_WIMAX.*\=\)[ym]/\1n/"\
83 82 -e "s/\(^CONFIG_6LOWPAN.*\=\).*/\1n/"\
84 83 -e "s/\(^CONFIG_IEEE802154.*\=\).*/\1n/"\
85 84 -e "s/\(^CONFIG_NFC.*\=\).*/\1n/"\
86 85 -e "s/\(^CONFIG_FB_TFT=.*\=\).*/\1n/"\
87 86 -e "s/\(^CONFIG_TOUCHSCREEN.*\=\).*/\1n/"\
88 87 -e "s/\(^CONFIG_USB_GSPCA_.*\=\).*/\1n/"\
89 88 -e "s/\(^CONFIG_DRM.*\=\).*/\1n/"\
90 89 "${KERNEL_DIR}/.config"
91 90 fi
92 91
93 92 if [ "$KERNELSRC_CONFIG" = true ] ; then
94 93 # Load default raspberry kernel configuration
95 94 make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" "${KERNEL_DEFCONFIG}"
96 95
97 96 #Switch to KERNELSRC_DIR so we can use set_kernel_config
98 97 cd "${KERNEL_DIR}" || exit
99 98
100 99 # enable ZSWAP see https://askubuntu.com/a/472227 or https://wiki.archlinux.org/index.php/zswap
101 100 if [ "$KERNEL_ZSWAP" = true ] ; then
102 101 set_kernel_config CONFIG_ZPOOL y
103 102 set_kernel_config CONFIG_ZSWAP y
104 103 set_kernel_config CONFIG_ZBUD y
105 104 set_kernel_config CONFIG_Z3FOLD y
106 105 set_kernel_config CONFIG_ZSMALLOC y
107 106 set_kernel_config CONFIG_PGTABLE_MAPPING y
108 107 fi
109 108
110 109 # enable basic KVM support; see https://www.raspberrypi.org/forums/viewtopic.php?f=63&t=210546&start=25#p1300453
111 110 if [ "$KERNEL_VIRT" = true ] && { [ "$RPI_MODEL" = 2 ] || [ "$RPI_MODEL" = 3 ] || [ "$RPI_MODEL" = 3P ] ; } ; then
112 111 set_kernel_config CONFIG_VIRTUALIZATION y
113 112 set_kernel_config CONFIG_KVM y
114 113 set_kernel_config CONFIG_VHOST_NET m
115 114 set_kernel_config CONFIG_VHOST_CROSS_ENDIAN_LEGACY y
116 115 fi
117 116
118 117 # enable apparmor,integrity audit,
119 118 if [ "$KERNEL_SECURITY" = true ] ; then
120 119
121 120 # security filesystem, security models and audit
122 121 set_kernel_config CONFIG_SECURITYFS y
123 122 set_kernel_config CONFIG_SECURITY y
124 123 set_kernel_config CONFIG_AUDIT y
125 124
126 125 # harden strcpy and memcpy
127 126 set_kernel_config CONFIG_HARDENED_USERCOPY=y
128 127 set_kernel_config CONFIG_HAVE_HARDENED_USERCOPY_ALLOCATOR=y
129 128 set_kernel_config CONFIG_FORTIFY_SOURCE=y
130 129
131 130 # integrity sub-system
132 131 set_kernel_config CONFIG_INTEGRITY=y
133 132 set_kernel_config CONFIG_INTEGRITY_ASYMMETRIC_KEYS=y
134 133 set_kernel_config CONFIG_INTEGRITY_AUDIT=y
135 134 set_kernel_config CONFIG_INTEGRITY_SIGNATURE=y
136 135 set_kernel_config CONFIG_INTEGRITY_TRUSTED_KEYRING=y
137 136
138 137 # This option provides support for retaining authentication tokens and access keys in the kernel.
139 138 set_kernel_config CONFIG_KEYS=y
140 139 set_kernel_config CONFIG_KEYS_COMPAT=y
141 140
142 141 # Apparmor
143 142 set_kernel_config CONFIG_SECURITY_APPARMOR_BOOTPARAM_VALUE 0
144 143 set_kernel_config CONFIG_SECURITY_APPARMOR_HASH_DEFAULT y
145 144 set_kernel_config CONFIG_DEFAULT_SECURITY_APPARMOR y
146 145 set_kernel_config CONFIG_SECURITY_APPARMOR y
147 146 set_kernel_config CONFIG_SECURITY_APPARMOR_HASH y
148 147 set_kernel_config CONFIG_DEFAULT_SECURITY "apparmor"
149 148
150 149 # restrictions on unprivileged users reading the kernel
151 150 set_kernel_config CONFIG_SECURITY_DMESG_RESTRICT=y
152 151
153 152 # network security hooks
154 153 set_kernel_config CONFIG_SECURITY_NETWORK y
155 154 set_kernel_config CONFIG_SECURITY_NETWORK_XFRM=y
156 155 set_kernel_config CONFIG_SECURITY_PATH=y
157 156 set_kernel_config CONFIG_SECURITY_YAMA=y
158 157
159 158 # New Options
160 159 if [ "$KERNEL_NF" = true ] ; then
161 160 set_kernel_config CONFIG_IP_NF_SECURITY m
162 161 set_kernel_config CONFIG_NETLABEL y
163 162 set_kernel_config CONFIG_IP6_NF_SECURITY m
164 163 fi
165 164 set_kernel_config CONFIG_SECURITY_SELINUX n
166 165 set_kernel_config CONFIG_SECURITY_SMACK n
167 166 set_kernel_config CONFIG_SECURITY_TOMOYO n
168 167 set_kernel_config CONFIG_SECURITY_APPARMOR_DEBUG n
169 168 set_kernel_config CONFIG_SECURITY_LOADPIN n
170 169 set_kernel_config CONFIG_HARDENED_USERCOPY_PAGESPAN n
171 170 set_kernel_config CONFIG_IMA n
172 171 set_kernel_config CONFIG_EVM n
173 172 set_kernel_config CONFIG_FANOTIFY_ACCESS_PERMISSIONS y
174 173 set_kernel_config CONFIG_NFSD_V4_SECURITY_LABEL y
175 174 set_kernel_config CONFIG_PKCS7_MESSAGE_PARSER y
176 175 set_kernel_config CONFIG_SYSTEM_TRUSTED_KEYRING y
177 176 set_kernel_config CONFIG_SYSTEM_TRUSTED_KEYS y
178 177 set_kernel_config CONFIG_SYSTEM_EXTRA_CERTIFICATE y
179 178 set_kernel_config CONFIG_SECONDARY_TRUSTED_KEYRING y
180 179 set_kernel_config CONFIG_IMA_KEYRINGS_PERMIT_SIGNED_BY_BUILTIN_OR_SECONDARY n
181 180 set_kernel_config CONFIG_SYSTEM_TRUSTED_KEYS m
182 181 set_kernel_config CONFIG_SYSTEM_EXTRA_CERTIFICATE_SIZE 4096
183 182
184 183 set_kernel_config CONFIG_ARM64_CRYPTO y
185 184 set_kernel_config CONFIG_CRYPTO_SHA256_ARM64 m
186 185 set_kernel_config CONFIG_CRYPTO_SHA512_ARM64 m
187 186 set_kernel_config CONFIG_CRYPTO_SHA1_ARM64_CE m
188 187 set_kernel_config CRYPTO_GHASH_ARM64_CE m
189 188 set_kernel_config CRYPTO_SHA2_ARM64_CE m
190 189 set_kernel_config CONFIG_CRYPTO_CRCT10DIF_ARM64_CE m
191 190 set_kernel_config CONFIG_CRYPTO_CRC32_ARM64_CE m
192 191 set_kernel_config CONFIG_CRYPTO_AES_ARM64 m
193 192 set_kernel_config CONFIG_CRYPTO_AES_ARM64_CE m
194 193 set_kernel_config CONFIG_CRYPTO_AES_ARM64_CE_CCM y
195 194 set_kernel_config CONFIG_CRYPTO_AES_ARM64_CE_BLK y
196 195 set_kernel_config CONFIG_CRYPTO_AES_ARM64_NEON_BLK m
197 196 set_kernel_config CONFIG_CRYPTO_CHACHA20_NEON m
198 197 set_kernel_config CONFIG_CRYPTO_AES_ARM64_BS m
199 198 fi
200 199
201 200 # Netfilter kernel support See https://github.com/raspberrypi/linux/issues/2177#issuecomment-354647406
202 201 if [ "$KERNEL_NF" = true ] ; then
203 202 set_kernel_config CONFIG_IP_NF_TARGET_SYNPROXY m
204 203 set_kernel_config CONFIG_NETFILTER_XT_TARGET_AUDIT m
205 204 set_kernel_config CONFIG_NETFILTER_XT_MATCH_CGROUP m
206 205 set_kernel_config CONFIG_NETFILTER_XT_MATCH_IPCOMP m
207 206 set_kernel_config CONFIG_NETFILTER_XT_MATCH_SOCKET m
208 207 set_kernel_config CONFIG_NFT_FIB_INET m
209 208 set_kernel_config CONFIG_NFT_FIB_IPV4 m
210 209 set_kernel_config CONFIG_NFT_FIB_IPV6 m
211 210 set_kernel_config CONFIG_NFT_FIB_NETDEV m
212 211 set_kernel_config CONFIG_NFT_OBJREF m
213 212 set_kernel_config CONFIG_NFT_RT m
214 213 set_kernel_config CONFIG_NFT_SET_BITMAP m
215 214 set_kernel_config CONFIG_NF_CONNTRACK_TIMEOUT y
216 215 set_kernel_config CONFIG_NF_LOG_ARP m
217 216 set_kernel_config CONFIG_NF_SOCKET_IPV4 m
218 217 set_kernel_config CONFIG_NF_SOCKET_IPV6 m
219 218 set_kernel_config CONFIG_BRIDGE_EBT_BROUTE m
220 219 set_kernel_config CONFIG_BRIDGE_EBT_T_FILTER m
221 220 set_kernel_config CONFIG_BRIDGE_NF_EBTABLES m
222 221 set_kernel_config CONFIG_IP6_NF_IPTABLES m
223 222 set_kernel_config CONFIG_IP6_NF_MATCH_AH m
224 223 set_kernel_config CONFIG_IP6_NF_MATCH_EUI64 m
225 224 set_kernel_config CONFIG_IP6_NF_NAT m
226 225 set_kernel_config CONFIG_IP6_NF_TARGET_MASQUERADE m
227 226 set_kernel_config CONFIG_IP6_NF_TARGET_NPT m
228 227 set_kernel_config CONFIG_IP_NF_SECURITY m
229 228 set_kernel_config CONFIG_IP_SET_BITMAP_IPMAC m
230 229 set_kernel_config CONFIG_IP_SET_BITMAP_PORT m
231 230 set_kernel_config CONFIG_IP_SET_HASH_IP m
232 231 set_kernel_config CONFIG_IP_SET_HASH_IPMARK m
233 232 set_kernel_config CONFIG_IP_SET_HASH_IPPORT m
234 233 set_kernel_config CONFIG_IP_SET_HASH_IPPORTIP m
235 234 set_kernel_config CONFIG_IP_SET_HASH_IPPORTNET m
236 235 set_kernel_config CONFIG_IP_SET_HASH_MAC m
237 236 set_kernel_config CONFIG_IP_SET_HASH_NET m
238 237 set_kernel_config CONFIG_IP_SET_HASH_NETIFACE m
239 238 set_kernel_config CONFIG_IP_SET_HASH_NETNET m
240 239 set_kernel_config CONFIG_IP_SET_HASH_NETPORT m
241 240 set_kernel_config CONFIG_IP_SET_HASH_NETPORTNET m
242 241 set_kernel_config CONFIG_IP_SET_LIST_SET m
243 242 set_kernel_config CONFIG_NETFILTER_XTABLES m
244 243 set_kernel_config CONFIG_NETFILTER_XTABLES m
245 244 set_kernel_config CONFIG_NFT_BRIDGE_META m
246 245 set_kernel_config CONFIG_NFT_BRIDGE_REJECT m
247 246 set_kernel_config CONFIG_NFT_CHAIN_NAT_IPV4 m
248 247 set_kernel_config CONFIG_NFT_CHAIN_NAT_IPV6 m
249 248 set_kernel_config CONFIG_NFT_CHAIN_ROUTE_IPV4 m
250 249 set_kernel_config CONFIG_NFT_CHAIN_ROUTE_IPV6 m
251 250 set_kernel_config CONFIG_NFT_COMPAT m
252 251 set_kernel_config CONFIG_NFT_COUNTER m
253 252 set_kernel_config CONFIG_NFT_CT m
254 253 set_kernel_config CONFIG_NFT_DUP_IPV4 m
255 254 set_kernel_config CONFIG_NFT_DUP_IPV6 m
256 255 set_kernel_config CONFIG_NFT_DUP_NETDEV m
257 256 set_kernel_config CONFIG_NFT_EXTHDR m
258 257 set_kernel_config CONFIG_NFT_FWD_NETDEV m
259 258 set_kernel_config CONFIG_NFT_HASH m
260 259 set_kernel_config CONFIG_NFT_LIMIT m
261 260 set_kernel_config CONFIG_NFT_LOG m
262 261 set_kernel_config CONFIG_NFT_MASQ m
263 262 set_kernel_config CONFIG_NFT_MASQ_IPV4 m
264 263 set_kernel_config CONFIG_NFT_MASQ_IPV6 m
265 264 set_kernel_config CONFIG_NFT_META m
266 265 set_kernel_config CONFIG_NFT_NAT m
267 266 set_kernel_config CONFIG_NFT_NUMGEN m
268 267 set_kernel_config CONFIG_NFT_QUEUE m
269 268 set_kernel_config CONFIG_NFT_QUOTA m
270 269 set_kernel_config CONFIG_NFT_REDIR m
271 270 set_kernel_config CONFIG_NFT_REDIR_IPV4 m
272 271 set_kernel_config CONFIG_NFT_REDIR_IPV6 m
273 272 set_kernel_config CONFIG_NFT_REJECT m
274 273 set_kernel_config CONFIG_NFT_REJECT_INET m
275 274 set_kernel_config CONFIG_NFT_REJECT_IPV4 m
276 275 set_kernel_config CONFIG_NFT_REJECT_IPV6 m
277 276 set_kernel_config CONFIG_NFT_SET_HASH m
278 277 set_kernel_config CONFIG_NFT_SET_RBTREE m
279 278 set_kernel_config CONFIG_NF_CONNTRACK_IPV4 m
280 279 set_kernel_config CONFIG_NF_CONNTRACK_IPV6 m
281 280 set_kernel_config CONFIG_NF_DEFRAG_IPV4 m
282 281 set_kernel_config CONFIG_NF_DEFRAG_IPV6 m
283 282 set_kernel_config CONFIG_NF_DUP_IPV4 m
284 283 set_kernel_config CONFIG_NF_DUP_IPV6 m
285 284 set_kernel_config CONFIG_NF_DUP_NETDEV m
286 285 set_kernel_config CONFIG_NF_LOG_BRIDGE m
287 286 set_kernel_config CONFIG_NF_LOG_IPV4 m
288 287 set_kernel_config CONFIG_NF_LOG_IPV6 m
289 288 set_kernel_config CONFIG_NF_NAT_IPV4 m
290 289 set_kernel_config CONFIG_NF_NAT_IPV6 m
291 290 set_kernel_config CONFIG_NF_NAT_MASQUERADE_IPV4 m
292 291 set_kernel_config CONFIG_NF_NAT_MASQUERADE_IPV6 m
293 292 set_kernel_config CONFIG_NF_NAT_PPTP m
294 293 set_kernel_config CONFIG_NF_NAT_PROTO_GRE m
295 294 set_kernel_config CONFIG_NF_NAT_REDIRECT m
296 295 set_kernel_config CONFIG_NF_NAT_SIP m
297 296 set_kernel_config CONFIG_NF_NAT_SNMP_BASIC m
298 297 set_kernel_config CONFIG_NF_NAT_TFTP m
299 298 set_kernel_config CONFIG_NF_REJECT_IPV4 m
300 299 set_kernel_config CONFIG_NF_REJECT_IPV6 m
301 300 set_kernel_config CONFIG_NF_TABLES m
302 301 set_kernel_config CONFIG_NF_TABLES_ARP m
303 302 set_kernel_config CONFIG_NF_TABLES_BRIDGE m
304 303 set_kernel_config CONFIG_NF_TABLES_INET m
305 304 set_kernel_config CONFIG_NF_TABLES_IPV4 m
306 305 set_kernel_config CONFIG_NF_TABLES_IPV6 m
307 306 set_kernel_config CONFIG_NF_TABLES_NETDEV m
308 307 fi
309 308
310 309 # Enables BPF syscall for systemd-journald see https://github.com/torvalds/linux/blob/master/init/Kconfig#L848 or https://groups.google.com/forum/#!topic/linux.gentoo.user/_2aSc_ztGpA
311 310 if [ "$KERNEL_BPF" = true ] ; then
312 311 set_kernel_config CONFIG_BPF_SYSCALL y
313 312 set_kernel_config CONFIG_BPF_EVENTS y
314 313 set_kernel_config CONFIG_BPF_STREAM_PARSER y
315 314 set_kernel_config CONFIG_CGROUP_BPF y
316 315 fi
317 316
318 317 # KERNEL_DEFAULT_GOV was set by user
319 318 if [ "$KERNEL_DEFAULT_GOV" != powersave ] && [ -n "$KERNEL_DEFAULT_GOV" ] ; then
320 319
321 320 case "$KERNEL_DEFAULT_GOV" in
322 321 performance)
323 322 set_kernel_config CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE y
324 323 ;;
325 324 userspace)
326 325 set_kernel_config CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE y
327 326 ;;
328 327 ondemand)
329 328 set_kernel_config CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND y
330 329 ;;
331 330 conservative)
332 331 set_kernel_config CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE y
333 332 ;;
334 333 shedutil)
335 334 set_kernel_config CONFIG_CPU_FREQ_DEFAULT_GOV_SCHEDUTIL y
336 335 ;;
337 336 *)
338 337 echo "error: unsupported default cpu governor"
339 338 exit 1
340 339 ;;
341 340 esac
342 341
343 342 # unset previous default governor
344 343 unset_kernel_config CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE
345 344 fi
346 345
347 346
348 347 #Revert to previous directory
349 348 cd "${WORKDIR}" || exit
350 349
351 350 # Set kernel configuration parameters to enable qemu emulation
352 351 if [ "$ENABLE_QEMU" = true ] ; then
353 352 echo "CONFIG_FHANDLE=y" >> "${KERNEL_DIR}"/.config
354 353 echo "CONFIG_LBDAF=y" >> "${KERNEL_DIR}"/.config
355 354
356 355 if [ "$ENABLE_CRYPTFS" = true ] ; then
357 356 {
358 357 echo "CONFIG_EMBEDDED=y"
359 358 echo "CONFIG_EXPERT=y"
360 359 echo "CONFIG_DAX=y"
361 360 echo "CONFIG_MD=y"
362 361 echo "CONFIG_BLK_DEV_MD=y"
363 362 echo "CONFIG_MD_AUTODETECT=y"
364 363 echo "CONFIG_BLK_DEV_DM=y"
365 364 echo "CONFIG_BLK_DEV_DM_BUILTIN=y"
366 365 echo "CONFIG_DM_CRYPT=y"
367 366 echo "CONFIG_CRYPTO_BLKCIPHER=y"
368 367 echo "CONFIG_CRYPTO_CBC=y"
369 368 echo "CONFIG_CRYPTO_XTS=y"
370 369 echo "CONFIG_CRYPTO_SHA512=y"
371 370 echo "CONFIG_CRYPTO_MANAGER=y"
372 371 } >> "${KERNEL_DIR}"/.config
373 372 fi
374 373 fi
375 374
376 375 # Copy custom kernel configuration file
377 376 if [ -n "$KERNELSRC_USRCONFIG" ] ; then
378 377 cp "$KERNELSRC_USRCONFIG" "${KERNEL_DIR}"/.config
379 378 fi
380 379
381 380 # Set kernel configuration parameters to their default values
382 381 if [ "$KERNEL_OLDDEFCONFIG" = true ] ; then
383 382 make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" olddefconfig
384 383 fi
385 384
386 385 # Start menu-driven kernel configuration (interactive)
387 386 if [ "$KERNEL_MENUCONFIG" = true ] ; then
388 387 make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" menuconfig
389 388 fi
390 389 # end if "$KERNELSRC_CONFIG" = true
391 390 fi
392 391
393 392 # Use ccache to cross compile the kernel
394 393 if [ "$KERNEL_CCACHE" = true ] ; then
395 394 cc="ccache ${CROSS_COMPILE}gcc"
396 395 else
397 396 cc="${CROSS_COMPILE}gcc"
398 397 fi
399 398
400 399 # Cross compile kernel and dtbs
401 400 make -C "${KERNEL_DIR}" -j"${KERNEL_THREADS}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" CC="${cc}" "${KERNEL_BIN_IMAGE}" dtbs
402 401
403 402 # Cross compile kernel modules
404 403 if grep -q "CONFIG_MODULES=y" "${KERNEL_DIR}/.config" ; then
405 404 make -C "${KERNEL_DIR}" -j"${KERNEL_THREADS}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" CC="${cc}" modules
406 405 fi
407 406 # end if "$KERNELSRC_PREBUILT" = false
408 407 fi
409 408
410 409 # Check if kernel compilation was successful
411 410 if [ ! -r "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/${KERNEL_BIN_IMAGE}" ] ; then
412 411 echo "error: kernel compilation failed! (kernel image not found)"
413 412 cleanup
414 413 exit 1
415 414 fi
416 415
417 416 # Install kernel modules
418 417 if [ "$ENABLE_REDUCE" = true ] ; then
419 418 if grep -q "CONFIG_MODULES=y" "${KERNEL_DIR}/.config" ; then
420 419 make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" INSTALL_MOD_STRIP=1 INSTALL_MOD_PATH=../../.. modules_install
421 420 fi
422 421 else
423 422 if grep -q "CONFIG_MODULES=y" "${KERNEL_DIR}/.config" ; then
424 423 make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" INSTALL_MOD_PATH=../../.. modules_install
425 424 fi
426 425
427 426 # Install kernel firmware
428 427 if grep -q "^firmware_install:" "${KERNEL_DIR}/Makefile" ; then
429 428 make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" INSTALL_FW_PATH=../../../lib firmware_install
430 429 fi
431 430 fi
432 431
433 432 # Install kernel headers
434 433 if [ "$KERNEL_HEADERS" = true ] && [ "$KERNEL_REDUCE" = false ] ; then
435 434 make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" INSTALL_HDR_PATH=../.. headers_install
436 435 fi
437 436 # make tar.gz kernel package - missing os bzw. modules
438 437 #** ** ** WARNING ** ** **
439 438 #Your architecture did not define any architecture-dependent files
440 439 #to be placed into the tarball. Please add those to ./scripts/package/buildtar .
441 440 # make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" CC="${cc}" targz-pkg
442 441
443 442 # Prepare boot (firmware) directory
444 443 mkdir "${BOOT_DIR}"
445 444
446 445 # Get kernel release version
447 446 KERNEL_VERSION=$(cat "${KERNEL_DIR}/include/config/kernel.release")
448 447
449 448 # Copy kernel configuration file to the boot directory
450 449 install_readonly "${KERNEL_DIR}/.config" "${R}/boot/config-${KERNEL_VERSION}"
451 450
452 451 # Prepare device tree directory
453 452 mkdir "${BOOT_DIR}/overlays"
454 453
455 454 # Ensure the proper .dtb is located
456 455 if [ "$KERNEL_ARCH" = "arm" ] ; then
457 456 for dtb in "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/"*.dtb ; do
458 457 if [ -f "${dtb}" ] ; then
459 458 install_readonly "${dtb}" "${BOOT_DIR}/"
460 459 fi
461 460 done
462 461 else
463 462 for dtb in "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/broadcom/"*.dtb ; do
464 463 if [ -f "${dtb}" ] ; then
465 464 install_readonly "${dtb}" "${BOOT_DIR}/"
466 465 fi
467 466 done
468 467 fi
469 468
470 469 # Copy compiled dtb device tree files
471 470 if [ -d "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/overlays" ] ; then
472 471 for dtb in "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/overlays/"*.dtb ; do
473 472 if [ -f "${dtb}" ] ; then
474 473 install_readonly "${dtb}" "${BOOT_DIR}/overlays/"
475 474 fi
476 475 done
477 476
478 477 if [ -f "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/overlays/README" ] ; then
479 478 install_readonly "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/overlays/README" "${BOOT_DIR}/overlays/README"
480 479 fi
481 480 fi
482 481
483 482 if [ "$ENABLE_UBOOT" = false ] ; then
484 483 # Convert and copy kernel image to the boot directory
485 484 "${KERNEL_DIR}/scripts/mkknlimg" "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/${KERNEL_BIN_IMAGE}" "${BOOT_DIR}/${KERNEL_IMAGE}"
486 485 else
487 486 # Copy kernel image to the boot directory
488 487 install_readonly "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/${KERNEL_BIN_IMAGE}" "${BOOT_DIR}/${KERNEL_IMAGE}"
489 488 fi
490 489
491 490 # Remove kernel sources
492 491 if [ "$KERNEL_REMOVESRC" = true ] ; then
493 492 rm -fr "${KERNEL_DIR}"
494 493 else
495 494 # Prepare compiled kernel modules
496 495 if grep -q "CONFIG_MODULES=y" "${KERNEL_DIR}/.config" ; then
497 496 if grep -q "^modules_prepare:" "${KERNEL_DIR}/Makefile" ; then
498 497 make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" modules_prepare
499 498 fi
500 499
501 500 # Create symlinks for kernel modules
502 501 chroot_exec ln -sf /usr/src/linux "/lib/modules/${KERNEL_VERSION}/build"
503 502 chroot_exec ln -sf /usr/src/linux "/lib/modules/${KERNEL_VERSION}/source"
504 503 fi
505 504 fi
506 505
507 506 else # BUILD_KERNEL=false
508 507 # echo Install precompiled kernel...
509 508 # echo error: not implemented
510 509 if [ "$SET_ARCH" = 64 ] && { [ "$RPI_MODEL" = 3 ] || [ "$RPI_MODEL" = 3P ] ; } ; then
511 510
512 511 # Use Sakakis modified kernel if ZSWAP is active
513 512 if [ "$KERNEL_ZSWAP" = true ] || [ "$KERNEL_VIRT" = true ] || [ "$KERNEL_NF" = true ] || [ "$KERNEL_BPF" = true ] ; then
514 513 RPI3_64_KERNEL_URL="${RPI3_64_BIS_KERNEL_URL}"
515 514 fi
516 515
517 516 # Create temporary directory for dl
518 517 temp_dir=$(as_nobody mktemp -d)
519 518
520 519 # Fetch kernel dl
521 520 as_nobody wget -O "${temp_dir}"/kernel.tar.xz -c "$RPI3_64_KERNEL_URL"
522 521
523 522 #extract download
524 523 tar -xJf "${temp_dir}"/kernel.tar.xz -C "${temp_dir}"
525 524
526 525 #move extracted kernel to /boot/firmware
527 526 mkdir "${R}/boot/firmware"
528 527 cp "${temp_dir}"/boot/* "${R}"/boot/firmware/
529 528 cp -r "${temp_dir}"/lib/* "${R}"/lib/
530 529
531 530 # Remove temporary directory for kernel sources
532 531 rm -fr "${temp_dir}"
533 532
534 533 # Set permissions of the kernel sources
535 534 chown -R root:root "${R}/boot/firmware"
536 535 chown -R root:root "${R}/lib/modules"
537 536 fi
538 537
539 538 # Install Kernel from hypriot comptabile with all Raspberry PI
540 539 if [ "$SET_ARCH" = 32 ] ; then
541 540 # Create temporary directory for dl
542 541 temp_dir=$(as_nobody mktemp -d)
543 542
544 543 # Fetch kernel
545 544 as_nobody wget -O "${temp_dir}"/kernel.deb -c "$RPI_32_KERNEL_URL"
546 545
547 546 # Copy downloaded U-Boot sources
548 547 mv "${temp_dir}"/kernel.deb "${R}"/tmp/kernel.deb
549 548
550 549 # Set permissions
551 550 chown -R root:root "${R}"/tmp/kernel.deb
552 551
553 552 # Install kernel
554 553 chroot_exec dpkg -i /tmp/kernel.deb
555 554
556 555 # move /boot to /boot/firmware to fit script env.
557 556 #mkdir "${BOOT_DIR}"
558 557 mkdir "${temp_dir}"/firmware
559 558 mv "${R}"/boot/* "${temp_dir}"/firmware/
560 559 mv "${temp_dir}"/firmware "${R}"/boot/
561 560
562 561 #same for kernel headers
563 562 if [ "$KERNEL_HEADERS" = true ] ; then
564 563 # Fetch kernel header
565 564 as_nobody wget -O "${temp_dir}"/kernel-header.deb -c "$RPI_32_KERNELHEADER_URL"
566 565 mv "${temp_dir}"/kernel-header.deb "${R}"/tmp/kernel-header.deb
567 566 chown -R root:root "${R}"/tmp/kernel-header.deb
568 567 # Install kernel header
569 568 chroot_exec dpkg -i /tmp/kernel-header.deb
570 569 rm -f "${R}"/tmp/kernel-header.deb
571 570 fi
572 571
573 572 # Remove temporary directory and files
574 573 rm -fr "${temp_dir}"
575 574 rm -f "${R}"/tmp/kernel.deb
576 575 fi
577 576
578 577 # Check if kernel installation was successful
579 578 KERNEL="$(ls -1 "${R}"/boot/firmware/kernel* | sort | tail -n 1)"
580 579 if [ -z "$KERNEL" ] ; then
581 580 echo "error: kernel installation failed! (/boot/kernel* not found)"
582 581 cleanup
583 582 exit 1
584 583 fi
585 584 fi
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