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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 if [ "$ENABLE_QEMU" = true ] && [ "$KERNEL_ARCH" = arm64 ]; then
57 57 cp "${KERNEL_DIR}"/arch/arm/configs/vexpress_defconfig "${KERNEL_DIR}"/arch/arm64/configs/
58 58 fi
59 59
60 60 # Configure and build kernel
61 61 if [ "$KERNELSRC_PREBUILT" = false ] ; then
62 62 # Remove device, network and filesystem drivers from kernel configuration
63 63 if [ "$KERNEL_REDUCE" = true ] ; then
64 64 make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" "${KERNEL_DEFCONFIG}"
65 65 sed -i\
66 66 -e "s/\(^CONFIG_SND.*\=\).*/\1n/"\
67 67 -e "s/\(^CONFIG_SOUND.*\=\).*/\1n/"\
68 68 -e "s/\(^CONFIG_AC97.*\=\).*/\1n/"\
69 69 -e "s/\(^CONFIG_VIDEO_.*\=\).*/\1n/"\
70 70 -e "s/\(^CONFIG_MEDIA_TUNER.*\=\).*/\1n/"\
71 71 -e "s/\(^CONFIG_DVB.*\=\)[ym]/\1n/"\
72 72 -e "s/\(^CONFIG_REISERFS.*\=\).*/\1n/"\
73 73 -e "s/\(^CONFIG_JFS.*\=\).*/\1n/"\
74 74 -e "s/\(^CONFIG_XFS.*\=\).*/\1n/"\
75 75 -e "s/\(^CONFIG_GFS2.*\=\).*/\1n/"\
76 76 -e "s/\(^CONFIG_OCFS2.*\=\).*/\1n/"\
77 77 -e "s/\(^CONFIG_BTRFS.*\=\).*/\1n/"\
78 78 -e "s/\(^CONFIG_HFS.*\=\).*/\1n/"\
79 79 -e "s/\(^CONFIG_JFFS2.*\=\)[ym]/\1n/"\
80 80 -e "s/\(^CONFIG_UBIFS.*\=\).*/\1n/"\
81 81 -e "s/\(^CONFIG_SQUASHFS.*\=\)[ym]/\1n/"\
82 82 -e "s/\(^CONFIG_W1.*\=\)[ym]/\1n/"\
83 83 -e "s/\(^CONFIG_HAMRADIO.*\=\).*/\1n/"\
84 84 -e "s/\(^CONFIG_CAN.*\=\).*/\1n/"\
85 85 -e "s/\(^CONFIG_IRDA.*\=\).*/\1n/"\
86 86 -e "s/\(^CONFIG_BT_.*\=\).*/\1n/"\
87 87 -e "s/\(^CONFIG_WIMAX.*\=\)[ym]/\1n/"\
88 88 -e "s/\(^CONFIG_6LOWPAN.*\=\).*/\1n/"\
89 89 -e "s/\(^CONFIG_IEEE802154.*\=\).*/\1n/"\
90 90 -e "s/\(^CONFIG_NFC.*\=\).*/\1n/"\
91 91 -e "s/\(^CONFIG_FB_TFT=.*\=\).*/\1n/"\
92 92 -e "s/\(^CONFIG_TOUCHSCREEN.*\=\).*/\1n/"\
93 93 -e "s/\(^CONFIG_USB_GSPCA_.*\=\).*/\1n/"\
94 94 -e "s/\(^CONFIG_DRM.*\=\).*/\1n/"\
95 95 "${KERNEL_DIR}/.config"
96 96 fi
97 97
98 98 if [ "$KERNELSRC_CONFIG" = true ] ; then
99 99 # Load default raspberry kernel configuration
100 100 make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" "${KERNEL_DEFCONFIG}"
101 101
102 102 #Switch to KERNELSRC_DIR so we can use set_kernel_config
103 103 cd "${KERNEL_DIR}" || exit
104 104
105 105 if [ "$KERNEL_ARCH" = arm64 ] && [ "$ENABLE_QEMU" = false ]; then
106 106 #Fix SD_DRIVER upstream and downstream mess in 64bit RPIdeb_config
107 107 # use correct driver MMC_BCM2835_MMC instead of MMC_BCM2835_SDHOST - see https://www.raspberrypi.org/forums/viewtopic.php?t=210225
108 108 set_kernel_config CONFIG_MMC_BCM2835 n
109 109 set_kernel_config CONFIG_MMC_SDHCI_IPROC n
110 110 set_kernel_config CONFIG_USB_DWC2 n
111 111 sed -i "s|depends on MMC_BCM2835_MMC && MMC_BCM2835_DMA|depends on MMC_BCM2835_MMC|" "${KERNEL_DIR}"/drivers/mmc/host/Kconfig
112 112
113 113 #VLAN got disabled without reason in arm64bit
114 114 set_kernel_config CONFIG_IPVLAN m
115 115 fi
116 116
117 117 # enable ZSWAP see https://askubuntu.com/a/472227 or https://wiki.archlinux.org/index.php/zswap
118 118 if [ "$KERNEL_ZSWAP" = true ] ; then
119 119 set_kernel_config CONFIG_ZPOOL y
120 120 set_kernel_config CONFIG_ZSWAP y
121 121 set_kernel_config CONFIG_ZBUD y
122 122 set_kernel_config CONFIG_Z3FOLD y
123 123 set_kernel_config CONFIG_ZSMALLOC y
124 124 set_kernel_config CONFIG_PGTABLE_MAPPING y
125 125 set_kernel_config CONFIG_LZO_COMPRESS y
126 126
127 127 fi
128 128
129 129 # enable basic KVM support; see https://www.raspberrypi.org/forums/viewtopic.php?f=63&t=210546&start=25#p1300453
130 130 if [ "$KERNEL_VIRT" = true ] && { [ "$RPI_MODEL" = 2 ] || [ "$RPI_MODEL" = 3 ] || [ "$RPI_MODEL" = 3P ] || [ "$RPI_MODEL" = 4 ]; } ; then
131 set_kernel_config CONFIG_HAVE_KVM y
132 set_kernel_config CONFIG_HIGH_RES_TIMERS y
131 133 set_kernel_config CONFIG_HAVE_KVM_IRQCHIP y
132 134 set_kernel_config CONFIG_HAVE_KVM_ARCH_TLB_FLUSH_ALL y
133 135 set_kernel_config CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT y
134 136 set_kernel_config CONFIG_HAVE_KVM_EVENTFD y
135 137 set_kernel_config CONFIG_HAVE_KVM_IRQFD y
136 138 set_kernel_config CONFIG_HAVE_KVM_IRQ_ROUTING y
137 139 set_kernel_config CONFIG_HAVE_KVM_MSI y
138 140 set_kernel_config CONFIG_KVM y
139 141 set_kernel_config CONFIG_KVM_ARM_HOST y
140 142 set_kernel_config CONFIG_KVM_ARM_PMU y
141 143 set_kernel_config CONFIG_KVM_COMPAT y
142 144 set_kernel_config CONFIG_KVM_GENERIC_DIRTYLOG_READ_PROTECT y
143 145 set_kernel_config CONFIG_KVM_MMIO y
144 146 set_kernel_config CONFIG_KVM_VFIO y
147 set_kernel_config CONFIG_KVM_MMU_AUDIT y
145 148 set_kernel_config CONFIG_VHOST m
146 149 set_kernel_config CONFIG_VHOST_CROSS_ENDIAN_LEGACY y
147 150 set_kernel_config CONFIG_VHOST_NET m
148 151 set_kernel_config CONFIG_VIRTUALIZATION y
149
150 152 set_kernel_config CONFIG_MMU_NOTIFIER y
151 153
154 set_kernel_config CONFIG_SLAB_FREELIST_RANDOM=y
155 set_kernel_config CONFIG_SLAB_FREELIST_HARDENED=y
156
152 157 # erratum
153 158 set_kernel_config ARM64_ERRATUM_834220 y
154
155 159 # https://sourceforge.net/p/kvm/mailman/message/18440797/
156 160 set_kernel_config CONFIG_PREEMPT_NOTIFIERS y
157 161 fi
158 162
159 163 # enable apparmor,integrity audit,
160 164 if [ "$KERNEL_SECURITY" = true ] ; then
161 165
162 166 # security filesystem, security models and audit
163 167 set_kernel_config CONFIG_SECURITYFS y
164 168 set_kernel_config CONFIG_SECURITY y
165 169 set_kernel_config CONFIG_AUDIT y
166 170
167 171 # harden strcpy and memcpy
168 172 set_kernel_config CONFIG_HARDENED_USERCOPY y
169 173 set_kernel_config CONFIG_HAVE_HARDENED_USERCOPY_ALLOCATOR y
170 174 set_kernel_config CONFIG_FORTIFY_SOURCE y
171 175
172 176 # integrity sub-system
173 177 set_kernel_config CONFIG_INTEGRITY y
174 178 set_kernel_config CONFIG_INTEGRITY_ASYMMETRIC_KEYS y
175 179 set_kernel_config CONFIG_INTEGRITY_AUDIT y
176 180 set_kernel_config CONFIG_INTEGRITY_SIGNATURE y
177 181 set_kernel_config CONFIG_INTEGRITY_TRUSTED_KEYRING y
178 182
179 183 # This option provides support for retaining authentication tokens and access keys in the kernel.
180 184 set_kernel_config CONFIG_KEYS y
181 185 set_kernel_config CONFIG_KEYS_COMPAT y
182 186
183 187 # Apparmor
184 188 set_kernel_config CONFIG_SECURITY_APPARMOR_BOOTPARAM_VALUE 0
185 189 set_kernel_config CONFIG_SECURITY_APPARMOR_HASH_DEFAULT y
186 190 set_kernel_config CONFIG_DEFAULT_SECURITY_APPARMOR y
187 191 set_kernel_config CONFIG_SECURITY_APPARMOR y
188 192 set_kernel_config CONFIG_SECURITY_APPARMOR_HASH y
189 193 set_kernel_config CONFIG_DEFAULT_SECURITY "apparmor"
190 194
191 195 # restrictions on unprivileged users reading the kernel
192 196 set_kernel_config CONFIG_SECURITY_DMESG_RESTRICT y
193 197
194 198 # network security hooks
195 199 set_kernel_config CONFIG_SECURITY_NETWORK y
196 200 set_kernel_config CONFIG_SECURITY_NETWORK_XFRM y
197 201 set_kernel_config CONFIG_SECURITY_PATH y
198 202 set_kernel_config CONFIG_SECURITY_YAMA n
199 203
200 204 # New Options
201 205 if [ "$KERNEL_NF" = true ] ; then
202 206 set_kernel_config CONFIG_IP_NF_SECURITY m
203 207 set_kernel_config CONFIG_NETLABEL y
204 208 set_kernel_config CONFIG_IP6_NF_SECURITY m
205 209 fi
206 210 set_kernel_config CONFIG_SECURITY_SELINUX n
207 211 set_kernel_config CONFIG_SECURITY_SMACK n
208 212 set_kernel_config CONFIG_SECURITY_TOMOYO n
209 213 set_kernel_config CONFIG_SECURITY_APPARMOR_DEBUG n
210 214 set_kernel_config CONFIG_SECURITY_LOADPIN n
211 215 set_kernel_config CONFIG_HARDENED_USERCOPY_PAGESPAN n
212 216 set_kernel_config CONFIG_IMA n
213 217 set_kernel_config CONFIG_EVM n
214 218 set_kernel_config CONFIG_FANOTIFY_ACCESS_PERMISSIONS y
215 219 set_kernel_config CONFIG_NFSD_V4_SECURITY_LABEL y
216 220 set_kernel_config CONFIG_PKCS7_MESSAGE_PARSER y
217 221 set_kernel_config CONFIG_SYSTEM_TRUSTED_KEYRING y
218 222 set_kernel_config CONFIG_SYSTEM_TRUSTED_KEYS y
219 223 set_kernel_config CONFIG_SYSTEM_EXTRA_CERTIFICATE y
220 224 set_kernel_config CONFIG_SECONDARY_TRUSTED_KEYRING y
221 225 set_kernel_config CONFIG_IMA_KEYRINGS_PERMIT_SIGNED_BY_BUILTIN_OR_SECONDARY n
222 226 set_kernel_config CONFIG_SYSTEM_TRUSTED_KEYS m
223 227 set_kernel_config CONFIG_SYSTEM_EXTRA_CERTIFICATE_SIZE 4096
224 228
225 229 set_kernel_config CONFIG_ARM64_CRYPTO y
226 230 set_kernel_config CONFIG_CRYPTO_SHA256_ARM64 m
227 231 set_kernel_config CONFIG_CRYPTO_SHA512_ARM64 m
228 232 set_kernel_config CONFIG_CRYPTO_SHA1_ARM64_CE m
229 233 set_kernel_config CRYPTO_GHASH_ARM64_CE m
230 234 set_kernel_config CRYPTO_SHA2_ARM64_CE m
231 235 set_kernel_config CONFIG_CRYPTO_CRCT10DIF_ARM64_CE m
232 236 set_kernel_config CONFIG_CRYPTO_CRC32_ARM64_CE m
233 237 set_kernel_config CONFIG_CRYPTO_AES_ARM64 m
234 238 set_kernel_config CONFIG_CRYPTO_AES_ARM64_CE m
235 239 set_kernel_config CONFIG_CRYPTO_AES_ARM64_CE_CCM y
236 240 set_kernel_config CONFIG_CRYPTO_AES_ARM64_CE_BLK y
237 241 set_kernel_config CONFIG_CRYPTO_AES_ARM64_NEON_BLK m
238 242 set_kernel_config CONFIG_CRYPTO_CHACHA20_NEON m
239 243 set_kernel_config CONFIG_CRYPTO_AES_ARM64_BS m
240 244 set_kernel_config SYSTEM_TRUSTED_KEYS
241 245 fi
242 246
243 247 # Netfilter kernel support See https://github.com/raspberrypi/linux/issues/2177#issuecomment-354647406
244 248 if [ "$KERNEL_NF" = true ] ; then
245 249 set_kernel_config CONFIG_IP_NF_TARGET_SYNPROXY m
246 250 set_kernel_config CONFIG_NETFILTER_XT_TARGET_AUDIT m
247 251 set_kernel_config CONFIG_NETFILTER_XT_MATCH_CGROUP m
248 252 set_kernel_config CONFIG_NETFILTER_XT_MATCH_IPCOMP m
249 253 set_kernel_config CONFIG_NETFILTER_XT_MATCH_SOCKET m
250 254 set_kernel_config CONFIG_NFT_FIB_INET m
251 255 set_kernel_config CONFIG_NFT_FIB_IPV4 m
252 256 set_kernel_config CONFIG_NFT_FIB_IPV6 m
253 257 set_kernel_config CONFIG_NFT_FIB_NETDEV m
254 258 set_kernel_config CONFIG_NFT_OBJREF m
255 259 set_kernel_config CONFIG_NFT_RT m
256 260 set_kernel_config CONFIG_NFT_SET_BITMAP m
257 261 set_kernel_config CONFIG_NF_CONNTRACK_TIMEOUT y
258 262 set_kernel_config CONFIG_NF_LOG_ARP m
259 263 set_kernel_config CONFIG_NF_SOCKET_IPV4 m
260 264 set_kernel_config CONFIG_NF_SOCKET_IPV6 m
261 265 set_kernel_config CONFIG_BRIDGE_EBT_BROUTE m
262 266 set_kernel_config CONFIG_BRIDGE_EBT_T_FILTER m
263 267 set_kernel_config CONFIG_BRIDGE_NF_EBTABLES m
264 268 set_kernel_config CONFIG_IP6_NF_IPTABLES m
265 269 set_kernel_config CONFIG_IP6_NF_MATCH_AH m
266 270 set_kernel_config CONFIG_IP6_NF_MATCH_EUI64 m
267 271 set_kernel_config CONFIG_IP6_NF_NAT m
268 272 set_kernel_config CONFIG_IP6_NF_TARGET_MASQUERADE m
269 273 set_kernel_config CONFIG_IP6_NF_TARGET_NPT m
270 274 set_kernel_config CONFIG_IP_NF_SECURITY m
271 275 set_kernel_config CONFIG_IP_SET_BITMAP_IPMAC m
272 276 set_kernel_config CONFIG_IP_SET_BITMAP_PORT m
273 277 set_kernel_config CONFIG_IP_SET_HASH_IP m
274 278 set_kernel_config CONFIG_IP_SET_HASH_IPMARK m
275 279 set_kernel_config CONFIG_IP_SET_HASH_IPPORT m
276 280 set_kernel_config CONFIG_IP_SET_HASH_IPPORTIP m
277 281 set_kernel_config CONFIG_IP_SET_HASH_IPPORTNET m
278 282 set_kernel_config CONFIG_IP_SET_HASH_MAC m
279 283 set_kernel_config CONFIG_IP_SET_HASH_NET m
280 284 set_kernel_config CONFIG_IP_SET_HASH_NETIFACE m
281 285 set_kernel_config CONFIG_IP_SET_HASH_NETNET m
282 286 set_kernel_config CONFIG_IP_SET_HASH_NETPORT m
283 287 set_kernel_config CONFIG_IP_SET_HASH_NETPORTNET m
284 288 set_kernel_config CONFIG_IP_SET_LIST_SET m
285 289 set_kernel_config CONFIG_NETFILTER_XTABLES m
286 290 set_kernel_config CONFIG_NETFILTER_XTABLES m
287 291 set_kernel_config CONFIG_NFT_BRIDGE_META m
288 292 set_kernel_config CONFIG_NFT_BRIDGE_REJECT m
289 293 set_kernel_config CONFIG_NFT_CHAIN_NAT_IPV4 m
290 294 set_kernel_config CONFIG_NFT_CHAIN_NAT_IPV6 m
291 295 set_kernel_config CONFIG_NFT_CHAIN_ROUTE_IPV4 m
292 296 set_kernel_config CONFIG_NFT_CHAIN_ROUTE_IPV6 m
293 297 set_kernel_config CONFIG_NFT_COMPAT m
294 298 set_kernel_config CONFIG_NFT_COUNTER m
295 299 set_kernel_config CONFIG_NFT_CT m
296 300 set_kernel_config CONFIG_NFT_DUP_IPV4 m
297 301 set_kernel_config CONFIG_NFT_DUP_IPV6 m
298 302 set_kernel_config CONFIG_NFT_DUP_NETDEV m
299 303 set_kernel_config CONFIG_NFT_EXTHDR m
300 304 set_kernel_config CONFIG_NFT_FWD_NETDEV m
301 305 set_kernel_config CONFIG_NFT_HASH m
302 306 set_kernel_config CONFIG_NFT_LIMIT m
303 307 set_kernel_config CONFIG_NFT_LOG m
304 308 set_kernel_config CONFIG_NFT_MASQ m
305 309 set_kernel_config CONFIG_NFT_MASQ_IPV4 m
306 310 set_kernel_config CONFIG_NFT_MASQ_IPV6 m
307 311 set_kernel_config CONFIG_NFT_META m
308 312 set_kernel_config CONFIG_NFT_NAT m
309 313 set_kernel_config CONFIG_NFT_NUMGEN m
310 314 set_kernel_config CONFIG_NFT_QUEUE m
311 315 set_kernel_config CONFIG_NFT_QUOTA m
312 316 set_kernel_config CONFIG_NFT_REDIR m
313 317 set_kernel_config CONFIG_NFT_REDIR_IPV4 m
314 318 set_kernel_config CONFIG_NFT_REDIR_IPV6 m
315 319 set_kernel_config CONFIG_NFT_REJECT m
316 320 set_kernel_config CONFIG_NFT_REJECT_INET m
317 321 set_kernel_config CONFIG_NFT_REJECT_IPV4 m
318 322 set_kernel_config CONFIG_NFT_REJECT_IPV6 m
319 323 set_kernel_config CONFIG_NFT_SET_HASH m
320 324 set_kernel_config CONFIG_NFT_SET_RBTREE m
321 325 set_kernel_config CONFIG_NF_CONNTRACK_IPV4 m
322 326 set_kernel_config CONFIG_NF_CONNTRACK_IPV6 m
323 327 set_kernel_config CONFIG_NF_DEFRAG_IPV4 m
324 328 set_kernel_config CONFIG_NF_DEFRAG_IPV6 m
325 329 set_kernel_config CONFIG_NF_DUP_IPV4 m
326 330 set_kernel_config CONFIG_NF_DUP_IPV6 m
327 331 set_kernel_config CONFIG_NF_DUP_NETDEV m
328 332 set_kernel_config CONFIG_NF_LOG_BRIDGE m
329 333 set_kernel_config CONFIG_NF_LOG_IPV4 m
330 334 set_kernel_config CONFIG_NF_LOG_IPV6 m
331 335 set_kernel_config CONFIG_NF_NAT_IPV4 m
332 336 set_kernel_config CONFIG_NF_NAT_IPV6 m
333 337 set_kernel_config CONFIG_NF_NAT_MASQUERADE_IPV4 m
334 338 set_kernel_config CONFIG_NF_NAT_MASQUERADE_IPV6 m
335 339 set_kernel_config CONFIG_NF_NAT_PPTP m
336 340 set_kernel_config CONFIG_NF_NAT_PROTO_GRE m
337 341 set_kernel_config CONFIG_NF_NAT_REDIRECT m
338 342 set_kernel_config CONFIG_NF_NAT_SIP m
339 343 set_kernel_config CONFIG_NF_NAT_SNMP_BASIC m
340 344 set_kernel_config CONFIG_NF_NAT_TFTP m
341 345 set_kernel_config CONFIG_NF_REJECT_IPV4 m
342 346 set_kernel_config CONFIG_NF_REJECT_IPV6 m
343 347 set_kernel_config CONFIG_NF_TABLES m
344 348 set_kernel_config CONFIG_NF_TABLES_ARP m
345 349 set_kernel_config CONFIG_NF_TABLES_BRIDGE m
346 350 set_kernel_config CONFIG_NF_TABLES_INET m
347 351 set_kernel_config CONFIG_NF_TABLES_IPV4 m
348 352 set_kernel_config CONFIG_NF_TABLES_IPV6 m
349 353 set_kernel_config CONFIG_NF_TABLES_NETDEV m
350 354 fi
351 355
352 356 # 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
353 357 if [ "$KERNEL_BPF" = true ] ; then
354 358 set_kernel_config CONFIG_BPF_SYSCALL y
355 359 set_kernel_config CONFIG_BPF_EVENTS y
356 360 set_kernel_config CONFIG_BPF_STREAM_PARSER y
357 361 set_kernel_config CONFIG_CGROUP_BPF y
358 362 fi
359 363
360 364 # KERNEL_DEFAULT_GOV was set by user
361 365 if [ "$KERNEL_DEFAULT_GOV" != powersave ] && [ -n "$KERNEL_DEFAULT_GOV" ] ; then
362 366
363 367 case "$KERNEL_DEFAULT_GOV" in
364 368 performance)
365 369 set_kernel_config CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE y
366 370 ;;
367 371 userspace)
368 372 set_kernel_config CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE y
369 373 ;;
370 374 ondemand)
371 375 set_kernel_config CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND y
372 376 ;;
373 377 conservative)
374 378 set_kernel_config CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE y
375 379 ;;
376 380 shedutil)
377 381 set_kernel_config CONFIG_CPU_FREQ_DEFAULT_GOV_SCHEDUTIL y
378 382 ;;
379 383 *)
380 384 echo "error: unsupported default cpu governor"
381 385 exit 1
382 386 ;;
383 387 esac
384 388
385 389 # unset previous default governor
386 390 unset_kernel_config CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE
387 391 fi
388 392
389 393 #Revert to previous directory
390 394 cd "${WORKDIR}" || exit
391 395
392 396 # Set kernel configuration parameters to enable qemu emulation
393 397 if [ "$ENABLE_QEMU" = true ] ; then
394 398 echo "CONFIG_FHANDLE=y" >> "${KERNEL_DIR}"/.config
395 399 echo "CONFIG_LBDAF=y" >> "${KERNEL_DIR}"/.config
396 400
397 401 if [ "$KERNEL_CRYPTFS" = true ] ; then
398 402 {
399 403 echo "CONFIG_EMBEDDED=y"
400 404 echo "CONFIG_EXPERT=y"
401 405 echo "CONFIG_DAX=y"
402 406 echo "CONFIG_MD=y"
403 407 echo "CONFIG_BLK_DEV_MD=y"
404 408 echo "CONFIG_MD_AUTODETECT=y"
405 409 echo "CONFIG_BLK_DEV_DM=y"
406 410 echo "CONFIG_BLK_DEV_DM_BUILTIN=y"
407 411 echo "CONFIG_DM_CRYPT=y"
408 412 echo "CONFIG_CRYPTO_BLKCIPHER=y"
409 413 echo "CONFIG_CRYPTO_CBC=y"
410 414 echo "CONFIG_CRYPTO_XTS=y"
411 415 echo "CONFIG_CRYPTO_SHA512=y"
412 416 echo "CONFIG_CRYPTO_MANAGER=y"
413 417 } >> "${KERNEL_DIR}"/.config
414 418 fi
415 419 fi
416 420
417 421 # Copy custom kernel configuration file
418 422 if [ -n "$KERNELSRC_USRCONFIG" ] ; then
419 423 cp "$KERNELSRC_USRCONFIG" "${KERNEL_DIR}"/.config
420 424 fi
421 425
422 426 # Set kernel configuration parameters to their default values
423 427 if [ "$KERNEL_OLDDEFCONFIG" = true ] ; then
424 428 make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" olddefconfig
425 429 fi
426 430
427 431 # Start menu-driven kernel configuration (interactive)
428 432 if [ "$KERNEL_MENUCONFIG" = true ] ; then
429 433 make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" menuconfig
430 434 fi
431 435 # end if "$KERNELSRC_CONFIG" = true
432 436 fi
433 437
434 438 # Use ccache to cross compile the kernel
435 439 if [ "$KERNEL_CCACHE" = true ] ; then
436 440 cc="ccache ${CROSS_COMPILE}gcc"
437 441 else
438 442 cc="${CROSS_COMPILE}gcc"
439 443 fi
440 444
441 445 # Cross compile kernel and dtbs
442 446 make -C "${KERNEL_DIR}" -j"${KERNEL_THREADS}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" CC="${cc}" "${KERNEL_BIN_IMAGE}" dtbs
443 447
444 448 # Cross compile kernel modules
445 449 if grep -q "CONFIG_MODULES=y" "${KERNEL_DIR}/.config" ; then
446 450 make -C "${KERNEL_DIR}" -j"${KERNEL_THREADS}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" CC="${cc}" modules
447 451 fi
448 452 # end if "$KERNELSRC_PREBUILT" = false
449 453 fi
450 454
451 455 # Check if kernel compilation was successful
452 456 if [ ! -r "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/${KERNEL_BIN_IMAGE}" ] ; then
453 457 echo "error: kernel compilation failed! (kernel image not found)"
454 458 cleanup
455 459 exit 1
456 460 fi
457 461
458 462 # Install kernel modules
459 463 if [ "$ENABLE_REDUCE" = true ] ; then
460 464 if grep -q "CONFIG_MODULES=y" "${KERNEL_DIR}/.config" ; then
461 465 make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" INSTALL_MOD_STRIP=1 INSTALL_MOD_PATH=../../.. modules_install
462 466 fi
463 467 else
464 468 if grep -q "CONFIG_MODULES=y" "${KERNEL_DIR}/.config" ; then
465 469 make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" INSTALL_MOD_PATH=../../.. modules_install
466 470 fi
467 471
468 472 # Install kernel firmware
469 473 if grep -q "^firmware_install:" "${KERNEL_DIR}/Makefile" ; then
470 474 make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" INSTALL_FW_PATH=../../../lib firmware_install
471 475 fi
472 476 fi
473 477
474 478 # Install kernel headers
475 479 if [ "$KERNEL_HEADERS" = true ] && [ "$KERNEL_REDUCE" = false ] ; then
476 480 make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" INSTALL_HDR_PATH=../.. headers_install
477 481 fi
478 482
479 483 # Prepare boot (firmware) directory
480 484 mkdir "${BOOT_DIR}"
481 485
482 486 # Get kernel release version
483 487 KERNEL_VERSION=$(cat "${KERNEL_DIR}/include/config/kernel.release")
484 488
485 489 # Copy kernel configuration file to the boot directory
486 490 install_readonly "${KERNEL_DIR}/.config" "${R}/boot/config-${KERNEL_VERSION}"
487 491
488 492 # Prepare device tree directory
489 493 mkdir "${BOOT_DIR}/overlays"
490 494
491 495 # Ensure the proper .dtb is located
492 496 if [ "$KERNEL_ARCH" = "arm" ] ; then
493 497 for dtb in "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/"*.dtb ; do
494 498 if [ -f "${dtb}" ] ; then
495 499 install_readonly "${dtb}" "${BOOT_DIR}/"
496 500 fi
497 501 done
498 502 else
499 503 for dtb in "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/broadcom/"*.dtb ; do
500 504 if [ -f "${dtb}" ] ; then
501 505 install_readonly "${dtb}" "${BOOT_DIR}/"
502 506 fi
503 507 done
504 508 fi
505 509
506 510 # Copy compiled dtb device tree files
507 511 if [ -d "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/overlays" ] ; then
508 512 for dtb in "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/overlays/"*.dtbo ; do
509 513 if [ -f "${dtb}" ] ; then
510 514 install_readonly "${dtb}" "${BOOT_DIR}/overlays/"
511 515 fi
512 516 done
513 517
514 518 if [ -f "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/overlays/README" ] ; then
515 519 install_readonly "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/overlays/README" "${BOOT_DIR}/overlays/README"
516 520 fi
517 521 fi
518 522
519 523 if [ "$ENABLE_UBOOT" = false ] ; then
520 524 # Convert and copy kernel image to the boot directory
521 525 "${KERNEL_DIR}/scripts/mkknlimg" "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/${KERNEL_BIN_IMAGE}" "${BOOT_DIR}/${KERNEL_IMAGE}"
522 526 else
523 527 # Copy kernel image to the boot directory
524 528 install_readonly "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/${KERNEL_BIN_IMAGE}" "${BOOT_DIR}/${KERNEL_IMAGE}"
525 529 fi
526 530
527 531 # Remove kernel sources
528 532 if [ "$KERNEL_REMOVESRC" = true ] ; then
529 533 rm -fr "${KERNEL_DIR}"
530 534 else
531 535 # Prepare compiled kernel modules
532 536 if grep -q "CONFIG_MODULES=y" "${KERNEL_DIR}/.config" ; then
533 537 if grep -q "^modules_prepare:" "${KERNEL_DIR}/Makefile" ; then
534 538 make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" modules_prepare
535 539 fi
536 540
537 541 # Create symlinks for kernel modules
538 542 chroot_exec ln -sf /usr/src/linux "/lib/modules/${KERNEL_VERSION}/build"
539 543 chroot_exec ln -sf /usr/src/linux "/lib/modules/${KERNEL_VERSION}/source"
540 544 fi
541 545 fi
542 546
543 547 else # BUILD_KERNEL=false
544 548 if [ "$SET_ARCH" = 64 ] ; then
545 549 if [ "$RPI_MODEL" = 3 ] || [ "$RPI_MODEL" = 3P ] ; then
546 550 # Use Sakakis modified kernel if ZSWAP is active
547 551 if [ "$KERNEL_ZSWAP" = true ] || [ "$KERNEL_VIRT" = true ] || [ "$KERNEL_NF" = true ] || [ "$KERNEL_BPF" = true ] ; then
548 552 RPI3_64_KERNEL_URL="${RPI3_64_BIS_KERNEL_URL}"
549 553 fi
550 554
551 555 # Create temporary directory for dl
552 556 temp_dir=$(as_nobody mktemp -d)
553 557
554 558 # Fetch kernel dl
555 559 as_nobody wget -O "${temp_dir}"/kernel.tar.xz -c "$RPI3_64_KERNEL_URL"
556 560 fi
557 561 if [ "$SET_ARCH" = 64 ] && [ "$RPI_MODEL" = 4 ] ; then
558 562 # Create temporary directory for dl
559 563 temp_dir=$(as_nobody mktemp -d)
560 564
561 565 # Fetch kernel dl
562 566 as_nobody wget -O "${temp_dir}"/kernel.tar.xz -c "$RPI4_64_KERNEL_URL"
563 567 fi
564 568
565 569 #extract download
566 570 tar -xJf "${temp_dir}"/kernel.tar.xz -C "${temp_dir}"
567 571
568 572 #move extracted kernel to /boot/firmware
569 573 mkdir "${R}/boot/firmware"
570 574 cp "${temp_dir}"/boot/* "${R}"/boot/firmware/
571 575 cp -r "${temp_dir}"/lib/* "${R}"/lib/
572 576
573 577 # Remove temporary directory for kernel sources
574 578 rm -fr "${temp_dir}"
575 579
576 580 # Set permissions of the kernel sources
577 581 chown -R root:root "${R}/boot/firmware"
578 582 chown -R root:root "${R}/lib/modules"
579 583 fi
580 584
581 585 # Install Kernel from hypriot comptabile with all Raspberry PI (dunno if its compatible with RPI4 - better compile your own kernel)
582 586 if [ "$SET_ARCH" = 32 ] && [ "$RPI_MODEL" != 4 ] ; then
583 587 # Create temporary directory for dl
584 588 temp_dir=$(as_nobody mktemp -d)
585 589
586 590 # Fetch kernel
587 591 as_nobody wget -O "${temp_dir}"/kernel.deb -c "$RPI_32_KERNEL_URL"
588 592
589 593 # Copy downloaded kernel package
590 594 mv "${temp_dir}"/kernel.deb "${R}"/tmp/kernel.deb
591 595
592 596 # Set permissions
593 597 chown -R root:root "${R}"/tmp/kernel.deb
594 598
595 599 # Install kernel
596 600 chroot_exec dpkg -i /tmp/kernel.deb
597 601
598 602 # move /boot to /boot/firmware to fit script env.
599 603 #mkdir "${BOOT_DIR}"
600 604 mkdir "${temp_dir}"/firmware
601 605 mv "${R}"/boot/* "${temp_dir}"/firmware/
602 606 mv "${temp_dir}"/firmware "${R}"/boot/
603 607
604 608 #same for kernel headers
605 609 if [ "$KERNEL_HEADERS" = true ] ; then
606 610 # Fetch kernel header
607 611 as_nobody wget -O "${temp_dir}"/kernel-header.deb -c "$RPI_32_KERNELHEADER_URL"
608 612 mv "${temp_dir}"/kernel-header.deb "${R}"/tmp/kernel-header.deb
609 613 chown -R root:root "${R}"/tmp/kernel-header.deb
610 614 # Install kernel header
611 615 chroot_exec dpkg -i /tmp/kernel-header.deb
612 616 rm -f "${R}"/tmp/kernel-header.deb
613 617 fi
614 618
615 619 # Remove temporary directory and files
616 620 rm -fr "${temp_dir}"
617 621 rm -f "${R}"/tmp/kernel.deb
618 622 fi
619 623
620 624 # Check if kernel installation was successful
621 625 KERNEL="$(ls -1 "${R}"/boot/firmware/kernel* | sort | tail -n 1)"
622 626 if [ -z "$KERNEL" ] ; then
623 627 echo "error: kernel installation failed! (/boot/kernel* not found)"
624 628 cleanup
625 629 exit 1
626 630 fi
627 631 fi
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