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Raspi2-3_GenImage
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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 [ "$ENABLE_NEXMON" = true ] ; then
10 10 KERNEL_URL="${KALI_KERNEL_URL}"
11 11 # Clear Branch and KernelSRC_DIR if using nexmon. Everyone will forget to clone kali kernel instead of nomrla kernel
12 12 KERNEL_BRANCH=""
13 13 KERNELSRC_DIR=""
14 14 fi
15 15
16 16 # Fetch and build latest raspberry kernel
17 17 if [ "$BUILD_KERNEL" = true ] ; then
18 18 # Setup source directory
19 19 mkdir -p "${KERNEL_DIR}"
20 20
21 21 # Copy existing kernel sources into chroot directory
22 22 if [ -n "$KERNELSRC_DIR" ] && [ -d "$KERNELSRC_DIR" ] ; then
23 23 # Copy kernel sources and include hidden files
24 24 cp -r "${KERNELSRC_DIR}/". "${KERNEL_DIR}"
25 25
26 26 # Clean the kernel sources
27 27 if [ "$KERNELSRC_CLEAN" = true ] && [ "$KERNELSRC_PREBUILT" = false ] ; then
28 28 make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" mrproper
29 29 fi
30 30 else # KERNELSRC_DIR=""
31 31 # Create temporary directory for kernel sources
32 32 temp_dir=$(as_nobody mktemp -d)
33 33
34 34 # Fetch current RPi2/3 kernel sources
35 35 if [ -z "${KERNEL_BRANCH}" ] ; then
36 36 as_nobody -H git -C "${temp_dir}" clone --depth=1 "${KERNEL_URL}" linux
37 37 else
38 38 as_nobody -H git -C "${temp_dir}" clone --depth=1 --branch "${KERNEL_BRANCH}" "${KERNEL_URL}" linux
39 39 fi
40 40
41 41 # Copy downloaded kernel sources
42 42 cp -r "${temp_dir}/linux/"* "${KERNEL_DIR}"
43 43
44 44 # Remove temporary directory for kernel sources
45 45 rm -fr "${temp_dir}"
46 46
47 47 # Set permissions of the kernel sources
48 48 chown -R root:root "${R}/usr/src"
49 49 fi
50 50
51 51 # Calculate optimal number of kernel building threads
52 52 if [ "$KERNEL_THREADS" = "1" ] && [ -r /proc/cpuinfo ] ; then
53 53 KERNEL_THREADS=$(grep -c processor /proc/cpuinfo)
54 54 fi
55 55
56 56 # Configure and build kernel
57 57 if [ "$KERNELSRC_PREBUILT" = false ] ; then
58 58 # Remove device, network and filesystem drivers from kernel configuration
59 59 if [ "$KERNEL_REDUCE" = true ] ; then
60 60 make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" "${KERNEL_DEFCONFIG}"
61 61 sed -i\
62 62 -e "s/\(^CONFIG_SND.*\=\).*/\1n/"\
63 63 -e "s/\(^CONFIG_SOUND.*\=\).*/\1n/"\
64 64 -e "s/\(^CONFIG_AC97.*\=\).*/\1n/"\
65 65 -e "s/\(^CONFIG_VIDEO_.*\=\).*/\1n/"\
66 66 -e "s/\(^CONFIG_MEDIA_TUNER.*\=\).*/\1n/"\
67 67 -e "s/\(^CONFIG_DVB.*\=\)[ym]/\1n/"\
68 68 -e "s/\(^CONFIG_REISERFS.*\=\).*/\1n/"\
69 69 -e "s/\(^CONFIG_JFS.*\=\).*/\1n/"\
70 70 -e "s/\(^CONFIG_XFS.*\=\).*/\1n/"\
71 71 -e "s/\(^CONFIG_GFS2.*\=\).*/\1n/"\
72 72 -e "s/\(^CONFIG_OCFS2.*\=\).*/\1n/"\
73 73 -e "s/\(^CONFIG_BTRFS.*\=\).*/\1n/"\
74 74 -e "s/\(^CONFIG_HFS.*\=\).*/\1n/"\
75 75 -e "s/\(^CONFIG_JFFS2.*\=\)[ym]/\1n/"\
76 76 -e "s/\(^CONFIG_UBIFS.*\=\).*/\1n/"\
77 77 -e "s/\(^CONFIG_SQUASHFS.*\=\)[ym]/\1n/"\
78 78 -e "s/\(^CONFIG_W1.*\=\)[ym]/\1n/"\
79 79 -e "s/\(^CONFIG_HAMRADIO.*\=\).*/\1n/"\
80 80 -e "s/\(^CONFIG_CAN.*\=\).*/\1n/"\
81 81 -e "s/\(^CONFIG_IRDA.*\=\).*/\1n/"\
82 82 -e "s/\(^CONFIG_BT_.*\=\).*/\1n/"\
83 83 -e "s/\(^CONFIG_WIMAX.*\=\)[ym]/\1n/"\
84 84 -e "s/\(^CONFIG_6LOWPAN.*\=\).*/\1n/"\
85 85 -e "s/\(^CONFIG_IEEE802154.*\=\).*/\1n/"\
86 86 -e "s/\(^CONFIG_NFC.*\=\).*/\1n/"\
87 87 -e "s/\(^CONFIG_FB_TFT=.*\=\).*/\1n/"\
88 88 -e "s/\(^CONFIG_TOUCHSCREEN.*\=\).*/\1n/"\
89 89 -e "s/\(^CONFIG_USB_GSPCA_.*\=\).*/\1n/"\
90 90 -e "s/\(^CONFIG_DRM.*\=\).*/\1n/"\
91 91 "${KERNEL_DIR}/.config"
92 92 fi
93 93
94 94 if [ "$KERNELSRC_CONFIG" = true ] ; then
95 95 # Load default raspberry kernel configuration
96 96 make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" "${KERNEL_DEFCONFIG}"
97 97
98 98 #Switch to KERNELSRC_DIR so we can use set_kernel_config
99 99 cd "${KERNEL_DIR}" || exit
100 100
101 101 # enable ZSWAP see https://askubuntu.com/a/472227 or https://wiki.archlinux.org/index.php/zswap
102 102 if [ "$KERNEL_ZSWAP" = true ] ; then
103 103 set_kernel_config CONFIG_ZPOOL y
104 104 set_kernel_config CONFIG_ZSWAP y
105 105 set_kernel_config CONFIG_ZBUD y
106 106 set_kernel_config CONFIG_Z3FOLD y
107 107 set_kernel_config CONFIG_ZSMALLOC y
108 108 set_kernel_config CONFIG_PGTABLE_MAPPING y
109 109 set_kernel_config CONFIG_LZO_COMPRESS y
110 110 set_kernel_config CONFIG_MMC_SDHCI_IPROC n
111 111 set_kernel_config CONFIG_USB_DWC2 n
112 set_kernel_config CONFIG_MMC_BCM2835 n
112 113 fi
113 114
114 115 # enable basic KVM support; see https://www.raspberrypi.org/forums/viewtopic.php?f=63&t=210546&start=25#p1300453
115 116 if [ "$KERNEL_VIRT" = true ] && { [ "$RPI_MODEL" = 2 ] || [ "$RPI_MODEL" = 3 ] || [ "$RPI_MODEL" = 3P ] ; } ; then
116 117 set_kernel_config CONFIG_HAVE_KVM_IRQCHIP y
117 118 set_kernel_config CONFIG_HAVE_KVM_ARCH_TLB_FLUSH_ALL y
118 119 set_kernel_config CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT y
119 120 set_kernel_config CONFIG_HAVE_KVM_EVENTFD y
120 121 set_kernel_config CONFIG_HAVE_KVM_IRQFD y
121 122 set_kernel_config CONFIG_HAVE_KVM_IRQ_ROUTING y
122 123 set_kernel_config CONFIG_HAVE_KVM_MSI y
123 124 set_kernel_config CONFIG_KVM y
124 125 set_kernel_config CONFIG_KVM_ARM_HOST y
125 126 set_kernel_config CONFIG_KVM_ARM_PMU y
126 127 set_kernel_config CONFIG_KVM_COMPAT y
127 128 set_kernel_config CONFIG_KVM_GENERIC_DIRTYLOG_READ_PROTECT y
128 129 set_kernel_config CONFIG_KVM_MMIO y
129 130 set_kernel_config CONFIG_KVM_VFIO y
130 131 set_kernel_config CONFIG_VHOST m
131 132 set_kernel_config CONFIG_VHOST_CROSS_ENDIAN_LEGACY y
132 133 set_kernel_config CONFIG_VHOST_NET m
133 134 set_kernel_config CONFIG_VIRTUALIZATION y
134 135
135 136 set_kernel_config CONFIG_MMU_NOTIFIER y
136 137
137 138 # erratum
138 139 set_kernel_config ARM64_ERRATUM_834220 y
139 140
140 141 # https://sourceforge.net/p/kvm/mailman/message/18440797/
141 142 set_kernel_config CONFIG_PREEMPT_NOTIFIERS y
142 143 fi
143 144
144 145 # enable apparmor,integrity audit,
145 146 if [ "$KERNEL_SECURITY" = true ] ; then
146 147
147 148 # security filesystem, security models and audit
148 149 set_kernel_config CONFIG_SECURITYFS y
149 150 set_kernel_config CONFIG_SECURITY y
150 151 set_kernel_config CONFIG_AUDIT y
151 152
152 153 # harden strcpy and memcpy
153 154 set_kernel_config CONFIG_HARDENED_USERCOPY y
154 155 set_kernel_config CONFIG_HAVE_HARDENED_USERCOPY_ALLOCATOR y
155 156 set_kernel_config CONFIG_FORTIFY_SOURCE y
156 157
157 158 # integrity sub-system
158 159 set_kernel_config CONFIG_INTEGRITY y
159 160 set_kernel_config CONFIG_INTEGRITY_ASYMMETRIC_KEYS y
160 161 set_kernel_config CONFIG_INTEGRITY_AUDIT y
161 162 set_kernel_config CONFIG_INTEGRITY_SIGNATURE y
162 163 set_kernel_config CONFIG_INTEGRITY_TRUSTED_KEYRING y
163 164 set_kernel_config CONFIG_SYSTEM_TRUSTED_KEYS ""
164 165
165 166 # This option provides support for retaining authentication tokens and access keys in the kernel.
166 167 set_kernel_config CONFIG_KEYS=y
167 168 set_kernel_config CONFIG_KEYS_COMPAT=y
168 169
169 170 # Apparmor
170 171 set_kernel_config CONFIG_SECURITY_APPARMOR_BOOTPARAM_VALUE 0
171 172 set_kernel_config CONFIG_SECURITY_APPARMOR_HASH_DEFAULT y
172 173 set_kernel_config CONFIG_DEFAULT_SECURITY_APPARMOR y
173 174 set_kernel_config CONFIG_SECURITY_APPARMOR y
174 175 set_kernel_config CONFIG_SECURITY_APPARMOR_HASH y
175 176 set_kernel_config CONFIG_DEFAULT_SECURITY "apparmor"
176 177
177 178 # restrictions on unprivileged users reading the kernel
178 179 set_kernel_config CONFIG_SECURITY_DMESG_RESTRICT=y
179 180
180 181 # network security hooks
181 182 set_kernel_config CONFIG_SECURITY_NETWORK y
182 183 set_kernel_config CONFIG_SECURITY_NETWORK_XFRM=y
183 184 set_kernel_config CONFIG_SECURITY_PATH=y
184 185 set_kernel_config CONFIG_SECURITY_YAMA=y
185 186
186 187 # New Options
187 188 if [ "$KERNEL_NF" = true ] ; then
188 189 set_kernel_config CONFIG_IP_NF_SECURITY m
189 190 set_kernel_config CONFIG_NETLABEL y
190 191 set_kernel_config CONFIG_IP6_NF_SECURITY m
191 192 fi
192 193 set_kernel_config CONFIG_SECURITY_SELINUX n
193 194 set_kernel_config CONFIG_SECURITY_SMACK n
194 195 set_kernel_config CONFIG_SECURITY_TOMOYO n
195 196 set_kernel_config CONFIG_SECURITY_APPARMOR_DEBUG n
196 197 set_kernel_config CONFIG_SECURITY_LOADPIN n
197 198 set_kernel_config CONFIG_HARDENED_USERCOPY_PAGESPAN n
198 199 set_kernel_config CONFIG_IMA n
199 200 set_kernel_config CONFIG_EVM n
200 201 set_kernel_config CONFIG_FANOTIFY_ACCESS_PERMISSIONS y
201 202 set_kernel_config CONFIG_NFSD_V4_SECURITY_LABEL y
202 203 set_kernel_config CONFIG_PKCS7_MESSAGE_PARSER y
203 204 set_kernel_config CONFIG_SYSTEM_TRUSTED_KEYRING y
204 205 set_kernel_config CONFIG_SYSTEM_TRUSTED_KEYS y
205 206 set_kernel_config CONFIG_SYSTEM_EXTRA_CERTIFICATE y
206 207 set_kernel_config CONFIG_SECONDARY_TRUSTED_KEYRING y
207 208 set_kernel_config CONFIG_IMA_KEYRINGS_PERMIT_SIGNED_BY_BUILTIN_OR_SECONDARY n
208 209 set_kernel_config CONFIG_SYSTEM_TRUSTED_KEYS m
209 210 set_kernel_config CONFIG_SYSTEM_EXTRA_CERTIFICATE_SIZE 4096
210 211
211 212 set_kernel_config CONFIG_ARM64_CRYPTO y
212 213 set_kernel_config CONFIG_CRYPTO_SHA256_ARM64 m
213 214 set_kernel_config CONFIG_CRYPTO_SHA512_ARM64 m
214 215 set_kernel_config CONFIG_CRYPTO_SHA1_ARM64_CE m
215 216 set_kernel_config CRYPTO_GHASH_ARM64_CE m
216 217 set_kernel_config CRYPTO_SHA2_ARM64_CE m
217 218 set_kernel_config CONFIG_CRYPTO_CRCT10DIF_ARM64_CE m
218 219 set_kernel_config CONFIG_CRYPTO_CRC32_ARM64_CE m
219 220 set_kernel_config CONFIG_CRYPTO_AES_ARM64 m
220 221 set_kernel_config CONFIG_CRYPTO_AES_ARM64_CE m
221 222 set_kernel_config CONFIG_CRYPTO_AES_ARM64_CE_CCM y
222 223 set_kernel_config CONFIG_CRYPTO_AES_ARM64_CE_BLK y
223 224 set_kernel_config CONFIG_CRYPTO_AES_ARM64_NEON_BLK m
224 225 set_kernel_config CONFIG_CRYPTO_CHACHA20_NEON m
225 226 set_kernel_config CONFIG_CRYPTO_AES_ARM64_BS m
226 227 echo SYSTEM_TRUSTED_KEYS >> .config
227 228 fi
228 229
229 230 # Netfilter kernel support See https://github.com/raspberrypi/linux/issues/2177#issuecomment-354647406
230 231 if [ "$KERNEL_NF" = true ] ; then
231 232 set_kernel_config CONFIG_IP_NF_TARGET_SYNPROXY m
232 233 set_kernel_config CONFIG_NETFILTER_XT_TARGET_AUDIT m
233 234 set_kernel_config CONFIG_NETFILTER_XT_MATCH_CGROUP m
234 235 set_kernel_config CONFIG_NETFILTER_XT_MATCH_IPCOMP m
235 236 set_kernel_config CONFIG_NETFILTER_XT_MATCH_SOCKET m
236 237 set_kernel_config CONFIG_NFT_FIB_INET m
237 238 set_kernel_config CONFIG_NFT_FIB_IPV4 m
238 239 set_kernel_config CONFIG_NFT_FIB_IPV6 m
239 240 set_kernel_config CONFIG_NFT_FIB_NETDEV m
240 241 set_kernel_config CONFIG_NFT_OBJREF m
241 242 set_kernel_config CONFIG_NFT_RT m
242 243 set_kernel_config CONFIG_NFT_SET_BITMAP m
243 244 set_kernel_config CONFIG_NF_CONNTRACK_TIMEOUT y
244 245 set_kernel_config CONFIG_NF_LOG_ARP m
245 246 set_kernel_config CONFIG_NF_SOCKET_IPV4 m
246 247 set_kernel_config CONFIG_NF_SOCKET_IPV6 m
247 248 set_kernel_config CONFIG_BRIDGE_EBT_BROUTE m
248 249 set_kernel_config CONFIG_BRIDGE_EBT_T_FILTER m
249 250 set_kernel_config CONFIG_BRIDGE_NF_EBTABLES m
250 251 set_kernel_config CONFIG_IP6_NF_IPTABLES m
251 252 set_kernel_config CONFIG_IP6_NF_MATCH_AH m
252 253 set_kernel_config CONFIG_IP6_NF_MATCH_EUI64 m
253 254 set_kernel_config CONFIG_IP6_NF_NAT m
254 255 set_kernel_config CONFIG_IP6_NF_TARGET_MASQUERADE m
255 256 set_kernel_config CONFIG_IP6_NF_TARGET_NPT m
256 257 set_kernel_config CONFIG_IP_NF_SECURITY m
257 258 set_kernel_config CONFIG_IP_SET_BITMAP_IPMAC m
258 259 set_kernel_config CONFIG_IP_SET_BITMAP_PORT m
259 260 set_kernel_config CONFIG_IP_SET_HASH_IP m
260 261 set_kernel_config CONFIG_IP_SET_HASH_IPMARK m
261 262 set_kernel_config CONFIG_IP_SET_HASH_IPPORT m
262 263 set_kernel_config CONFIG_IP_SET_HASH_IPPORTIP m
263 264 set_kernel_config CONFIG_IP_SET_HASH_IPPORTNET m
264 265 set_kernel_config CONFIG_IP_SET_HASH_MAC m
265 266 set_kernel_config CONFIG_IP_SET_HASH_NET m
266 267 set_kernel_config CONFIG_IP_SET_HASH_NETIFACE m
267 268 set_kernel_config CONFIG_IP_SET_HASH_NETNET m
268 269 set_kernel_config CONFIG_IP_SET_HASH_NETPORT m
269 270 set_kernel_config CONFIG_IP_SET_HASH_NETPORTNET m
270 271 set_kernel_config CONFIG_IP_SET_LIST_SET m
271 272 set_kernel_config CONFIG_NETFILTER_XTABLES m
272 273 set_kernel_config CONFIG_NETFILTER_XTABLES m
273 274 set_kernel_config CONFIG_NFT_BRIDGE_META m
274 275 set_kernel_config CONFIG_NFT_BRIDGE_REJECT m
275 276 set_kernel_config CONFIG_NFT_CHAIN_NAT_IPV4 m
276 277 set_kernel_config CONFIG_NFT_CHAIN_NAT_IPV6 m
277 278 set_kernel_config CONFIG_NFT_CHAIN_ROUTE_IPV4 m
278 279 set_kernel_config CONFIG_NFT_CHAIN_ROUTE_IPV6 m
279 280 set_kernel_config CONFIG_NFT_COMPAT m
280 281 set_kernel_config CONFIG_NFT_COUNTER m
281 282 set_kernel_config CONFIG_NFT_CT m
282 283 set_kernel_config CONFIG_NFT_DUP_IPV4 m
283 284 set_kernel_config CONFIG_NFT_DUP_IPV6 m
284 285 set_kernel_config CONFIG_NFT_DUP_NETDEV m
285 286 set_kernel_config CONFIG_NFT_EXTHDR m
286 287 set_kernel_config CONFIG_NFT_FWD_NETDEV m
287 288 set_kernel_config CONFIG_NFT_HASH m
288 289 set_kernel_config CONFIG_NFT_LIMIT m
289 290 set_kernel_config CONFIG_NFT_LOG m
290 291 set_kernel_config CONFIG_NFT_MASQ m
291 292 set_kernel_config CONFIG_NFT_MASQ_IPV4 m
292 293 set_kernel_config CONFIG_NFT_MASQ_IPV6 m
293 294 set_kernel_config CONFIG_NFT_META m
294 295 set_kernel_config CONFIG_NFT_NAT m
295 296 set_kernel_config CONFIG_NFT_NUMGEN m
296 297 set_kernel_config CONFIG_NFT_QUEUE m
297 298 set_kernel_config CONFIG_NFT_QUOTA m
298 299 set_kernel_config CONFIG_NFT_REDIR m
299 300 set_kernel_config CONFIG_NFT_REDIR_IPV4 m
300 301 set_kernel_config CONFIG_NFT_REDIR_IPV6 m
301 302 set_kernel_config CONFIG_NFT_REJECT m
302 303 set_kernel_config CONFIG_NFT_REJECT_INET m
303 304 set_kernel_config CONFIG_NFT_REJECT_IPV4 m
304 305 set_kernel_config CONFIG_NFT_REJECT_IPV6 m
305 306 set_kernel_config CONFIG_NFT_SET_HASH m
306 307 set_kernel_config CONFIG_NFT_SET_RBTREE m
307 308 set_kernel_config CONFIG_NF_CONNTRACK_IPV4 m
308 309 set_kernel_config CONFIG_NF_CONNTRACK_IPV6 m
309 310 set_kernel_config CONFIG_NF_DEFRAG_IPV4 m
310 311 set_kernel_config CONFIG_NF_DEFRAG_IPV6 m
311 312 set_kernel_config CONFIG_NF_DUP_IPV4 m
312 313 set_kernel_config CONFIG_NF_DUP_IPV6 m
313 314 set_kernel_config CONFIG_NF_DUP_NETDEV m
314 315 set_kernel_config CONFIG_NF_LOG_BRIDGE m
315 316 set_kernel_config CONFIG_NF_LOG_IPV4 m
316 317 set_kernel_config CONFIG_NF_LOG_IPV6 m
317 318 set_kernel_config CONFIG_NF_NAT_IPV4 m
318 319 set_kernel_config CONFIG_NF_NAT_IPV6 m
319 320 set_kernel_config CONFIG_NF_NAT_MASQUERADE_IPV4 m
320 321 set_kernel_config CONFIG_NF_NAT_MASQUERADE_IPV6 m
321 322 set_kernel_config CONFIG_NF_NAT_PPTP m
322 323 set_kernel_config CONFIG_NF_NAT_PROTO_GRE m
323 324 set_kernel_config CONFIG_NF_NAT_REDIRECT m
324 325 set_kernel_config CONFIG_NF_NAT_SIP m
325 326 set_kernel_config CONFIG_NF_NAT_SNMP_BASIC m
326 327 set_kernel_config CONFIG_NF_NAT_TFTP m
327 328 set_kernel_config CONFIG_NF_REJECT_IPV4 m
328 329 set_kernel_config CONFIG_NF_REJECT_IPV6 m
329 330 set_kernel_config CONFIG_NF_TABLES m
330 331 set_kernel_config CONFIG_NF_TABLES_ARP m
331 332 set_kernel_config CONFIG_NF_TABLES_BRIDGE m
332 333 set_kernel_config CONFIG_NF_TABLES_INET m
333 334 set_kernel_config CONFIG_NF_TABLES_IPV4 m
334 335 set_kernel_config CONFIG_NF_TABLES_IPV6 m
335 336 set_kernel_config CONFIG_NF_TABLES_NETDEV m
336 337 fi
337 338
338 339 # 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
339 340 if [ "$KERNEL_BPF" = true ] ; then
340 341 set_kernel_config CONFIG_BPF_SYSCALL y
341 342 set_kernel_config CONFIG_BPF_EVENTS y
342 343 set_kernel_config CONFIG_BPF_STREAM_PARSER y
343 344 set_kernel_config CONFIG_CGROUP_BPF y
344 345 fi
345 346
346 347 # KERNEL_DEFAULT_GOV was set by user
347 348 if [ "$KERNEL_DEFAULT_GOV" != powersave ] && [ -n "$KERNEL_DEFAULT_GOV" ] ; then
348 349
349 350 case "$KERNEL_DEFAULT_GOV" in
350 351 performance)
351 352 set_kernel_config CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE y
352 353 ;;
353 354 userspace)
354 355 set_kernel_config CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE y
355 356 ;;
356 357 ondemand)
357 358 set_kernel_config CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND y
358 359 ;;
359 360 conservative)
360 361 set_kernel_config CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE y
361 362 ;;
362 363 shedutil)
363 364 set_kernel_config CONFIG_CPU_FREQ_DEFAULT_GOV_SCHEDUTIL y
364 365 ;;
365 366 *)
366 367 echo "error: unsupported default cpu governor"
367 368 exit 1
368 369 ;;
369 370 esac
370 371
371 372 # unset previous default governor
372 373 unset_kernel_config CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE
373 374 fi
374 375
375 376 #Revert to previous directory
376 377 cd "${WORKDIR}" || exit
377 378
378 379 # Set kernel configuration parameters to enable qemu emulation
379 380 if [ "$ENABLE_QEMU" = true ] ; then
380 381 echo "CONFIG_FHANDLE=y" >> "${KERNEL_DIR}"/.config
381 382 echo "CONFIG_LBDAF=y" >> "${KERNEL_DIR}"/.config
382 383
383 384 if [ "$ENABLE_CRYPTFS" = true ] ; then
384 385 {
385 386 echo "CONFIG_EMBEDDED=y"
386 387 echo "CONFIG_EXPERT=y"
387 388 echo "CONFIG_DAX=y"
388 389 echo "CONFIG_MD=y"
389 390 echo "CONFIG_BLK_DEV_MD=y"
390 391 echo "CONFIG_MD_AUTODETECT=y"
391 392 echo "CONFIG_BLK_DEV_DM=y"
392 393 echo "CONFIG_BLK_DEV_DM_BUILTIN=y"
393 394 echo "CONFIG_DM_CRYPT=y"
394 395 echo "CONFIG_CRYPTO_BLKCIPHER=y"
395 396 echo "CONFIG_CRYPTO_CBC=y"
396 397 echo "CONFIG_CRYPTO_XTS=y"
397 398 echo "CONFIG_CRYPTO_SHA512=y"
398 399 echo "CONFIG_CRYPTO_MANAGER=y"
399 400 } >> "${KERNEL_DIR}"/.config
400 401 fi
401 402 fi
402 403
403 404 # Copy custom kernel configuration file
404 405 if [ -n "$KERNELSRC_USRCONFIG" ] ; then
405 406 cp "$KERNELSRC_USRCONFIG" "${KERNEL_DIR}"/.config
406 407 fi
407 408
408 409 # Set kernel configuration parameters to their default values
409 410 if [ "$KERNEL_OLDDEFCONFIG" = true ] ; then
410 411 make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" olddefconfig
411 412 fi
412 413
413 414 # Start menu-driven kernel configuration (interactive)
414 415 if [ "$KERNEL_MENUCONFIG" = true ] ; then
415 416 make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" menuconfig
416 417 fi
417 418 # end if "$KERNELSRC_CONFIG" = true
418 419 fi
419 420
420 421 # Use ccache to cross compile the kernel
421 422 if [ "$KERNEL_CCACHE" = true ] ; then
422 423 cc="ccache ${CROSS_COMPILE}gcc"
423 424 else
424 425 cc="${CROSS_COMPILE}gcc"
425 426 fi
426 427
427 428 # Cross compile kernel and dtbs
428 429 make -C "${KERNEL_DIR}" -j"${KERNEL_THREADS}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" CC="${cc}" "${KERNEL_BIN_IMAGE}" dtbs
429 430
430 431 # Cross compile kernel modules
431 432 if grep -q "CONFIG_MODULES=y" "${KERNEL_DIR}/.config" ; then
432 433 make -C "${KERNEL_DIR}" -j"${KERNEL_THREADS}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" CC="${cc}" modules
433 434 fi
434 435 # end if "$KERNELSRC_PREBUILT" = false
435 436 fi
436 437
437 438 # Check if kernel compilation was successful
438 439 if [ ! -r "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/${KERNEL_BIN_IMAGE}" ] ; then
439 440 echo "error: kernel compilation failed! (kernel image not found)"
440 441 cleanup
441 442 exit 1
442 443 fi
443 444
444 445 # Install kernel modules
445 446 if [ "$ENABLE_REDUCE" = true ] ; then
446 447 if grep -q "CONFIG_MODULES=y" "${KERNEL_DIR}/.config" ; then
447 448 make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" INSTALL_MOD_STRIP=1 INSTALL_MOD_PATH=../../.. modules_install
448 449 fi
449 450 else
450 451 if grep -q "CONFIG_MODULES=y" "${KERNEL_DIR}/.config" ; then
451 452 make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" INSTALL_MOD_PATH=../../.. modules_install
452 453 fi
453 454
454 455 # Install kernel firmware
455 456 if grep -q "^firmware_install:" "${KERNEL_DIR}/Makefile" ; then
456 457 make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" INSTALL_FW_PATH=../../../lib firmware_install
457 458 fi
458 459 fi
459 460
460 461 # Install kernel headers
461 462 if [ "$KERNEL_HEADERS" = true ] && [ "$KERNEL_REDUCE" = false ] ; then
462 463 make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" INSTALL_HDR_PATH=../.. headers_install
463 464 fi
464 465
465 466 # Prepare boot (firmware) directory
466 467 mkdir "${BOOT_DIR}"
467 468
468 469 # Get kernel release version
469 470 KERNEL_VERSION=$(cat "${KERNEL_DIR}/include/config/kernel.release")
470 471
471 472 # Copy kernel configuration file to the boot directory
472 473 install_readonly "${KERNEL_DIR}/.config" "${R}/boot/config-${KERNEL_VERSION}"
473 474
474 475 # Prepare device tree directory
475 476 mkdir "${BOOT_DIR}/overlays"
476 477
477 478 # Ensure the proper .dtb is located
478 479 if [ "$KERNEL_ARCH" = "arm" ] ; then
479 480 for dtb in "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/"*.dtb ; do
480 481 if [ -f "${dtb}" ] ; then
481 482 install_readonly "${dtb}" "${BOOT_DIR}/"
482 483 fi
483 484 done
484 485 else
485 486 for dtb in "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/broadcom/"*.dtb ; do
486 487 if [ -f "${dtb}" ] ; then
487 488 install_readonly "${dtb}" "${BOOT_DIR}/"
488 489 fi
489 490 done
490 491 fi
491 492
492 493 # Copy compiled dtb device tree files
493 494 if [ -d "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/overlays" ] ; then
494 495 for dtb in "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/overlays/"*.dtbo ; do
495 496 if [ -f "${dtb}" ] ; then
496 497 install_readonly "${dtb}" "${BOOT_DIR}/overlays/"
497 498 fi
498 499 done
499 500
500 501 if [ -f "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/overlays/README" ] ; then
501 502 install_readonly "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/overlays/README" "${BOOT_DIR}/overlays/README"
502 503 fi
503 504 fi
504 505
505 506 if [ "$ENABLE_UBOOT" = false ] ; then
506 507 # Convert and copy kernel image to the boot directory
507 508 "${KERNEL_DIR}/scripts/mkknlimg" "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/${KERNEL_BIN_IMAGE}" "${BOOT_DIR}/${KERNEL_IMAGE}"
508 509 else
509 510 # Copy kernel image to the boot directory
510 511 install_readonly "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/${KERNEL_BIN_IMAGE}" "${BOOT_DIR}/${KERNEL_IMAGE}"
511 512 fi
512 513
513 514 # Remove kernel sources
514 515 if [ "$KERNEL_REMOVESRC" = true ] ; then
515 516 rm -fr "${KERNEL_DIR}"
516 517 else
517 518 # Prepare compiled kernel modules
518 519 if grep -q "CONFIG_MODULES=y" "${KERNEL_DIR}/.config" ; then
519 520 if grep -q "^modules_prepare:" "${KERNEL_DIR}/Makefile" ; then
520 521 make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" modules_prepare
521 522 fi
522 523
523 524 # Create symlinks for kernel modules
524 525 chroot_exec ln -sf /usr/src/linux "/lib/modules/${KERNEL_VERSION}/build"
525 526 chroot_exec ln -sf /usr/src/linux "/lib/modules/${KERNEL_VERSION}/source"
526 527 fi
527 528 fi
528 529
529 530 else # BUILD_KERNEL=false
530 531 if [ "$SET_ARCH" = 64 ] && { [ "$RPI_MODEL" = 3 ] || [ "$RPI_MODEL" = 3P ] ; } ; then
531 532
532 533 # Use Sakakis modified kernel if ZSWAP is active
533 534 if [ "$KERNEL_ZSWAP" = true ] || [ "$KERNEL_VIRT" = true ] || [ "$KERNEL_NF" = true ] || [ "$KERNEL_BPF" = true ] ; then
534 535 RPI3_64_KERNEL_URL="${RPI3_64_BIS_KERNEL_URL}"
535 536 fi
536 537
537 538 # Create temporary directory for dl
538 539 temp_dir=$(as_nobody mktemp -d)
539 540
540 541 # Fetch kernel dl
541 542 as_nobody wget -O "${temp_dir}"/kernel.tar.xz -c "$RPI3_64_KERNEL_URL"
542 543
543 544 #extract download
544 545 tar -xJf "${temp_dir}"/kernel.tar.xz -C "${temp_dir}"
545 546
546 547 #move extracted kernel to /boot/firmware
547 548 mkdir "${R}/boot/firmware"
548 549 cp "${temp_dir}"/boot/* "${R}"/boot/firmware/
549 550 cp -r "${temp_dir}"/lib/* "${R}"/lib/
550 551
551 552 # Remove temporary directory for kernel sources
552 553 rm -fr "${temp_dir}"
553 554
554 555 # Set permissions of the kernel sources
555 556 chown -R root:root "${R}/boot/firmware"
556 557 chown -R root:root "${R}/lib/modules"
557 558 fi
558 559
559 560 # Install Kernel from hypriot comptabile with all Raspberry PI
560 561 if [ "$SET_ARCH" = 32 ] ; then
561 562 # Create temporary directory for dl
562 563 temp_dir=$(as_nobody mktemp -d)
563 564
564 565 # Fetch kernel
565 566 as_nobody wget -O "${temp_dir}"/kernel.deb -c "$RPI_32_KERNEL_URL"
566 567
567 568 # Copy downloaded U-Boot sources
568 569 mv "${temp_dir}"/kernel.deb "${R}"/tmp/kernel.deb
569 570
570 571 # Set permissions
571 572 chown -R root:root "${R}"/tmp/kernel.deb
572 573
573 574 # Install kernel
574 575 chroot_exec dpkg -i /tmp/kernel.deb
575 576
576 577 # move /boot to /boot/firmware to fit script env.
577 578 #mkdir "${BOOT_DIR}"
578 579 mkdir "${temp_dir}"/firmware
579 580 mv "${R}"/boot/* "${temp_dir}"/firmware/
580 581 mv "${temp_dir}"/firmware "${R}"/boot/
581 582
582 583 #same for kernel headers
583 584 if [ "$KERNEL_HEADERS" = true ] ; then
584 585 # Fetch kernel header
585 586 as_nobody wget -O "${temp_dir}"/kernel-header.deb -c "$RPI_32_KERNELHEADER_URL"
586 587 mv "${temp_dir}"/kernel-header.deb "${R}"/tmp/kernel-header.deb
587 588 chown -R root:root "${R}"/tmp/kernel-header.deb
588 589 # Install kernel header
589 590 chroot_exec dpkg -i /tmp/kernel-header.deb
590 591 rm -f "${R}"/tmp/kernel-header.deb
591 592 fi
592 593
593 594 # Remove temporary directory and files
594 595 rm -fr "${temp_dir}"
595 596 rm -f "${R}"/tmp/kernel.deb
596 597 fi
597 598
598 599 # Check if kernel installation was successful
599 600 KERNEL="$(ls -1 "${R}"/boot/firmware/kernel* | sort | tail -n 1)"
600 601 if [ -z "$KERNEL" ] ; then
601 602 echo "error: kernel installation failed! (/boot/kernel* not found)"
602 603 cleanup
603 604 exit 1
604 605 fi
605 606 fi
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