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