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