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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
131 131 set_kernel_config CONFIG_HAVE_KVM y
132 132 set_kernel_config CONFIG_HIGH_RES_TIMERS y
133 133 set_kernel_config CONFIG_HAVE_KVM_IRQCHIP y
134 134 set_kernel_config CONFIG_HAVE_KVM_ARCH_TLB_FLUSH_ALL y
135 135 set_kernel_config CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT y
136 136 set_kernel_config CONFIG_HAVE_KVM_EVENTFD y
137 137 set_kernel_config CONFIG_HAVE_KVM_IRQFD y
138 138 set_kernel_config CONFIG_HAVE_KVM_IRQ_ROUTING y
139 139 set_kernel_config CONFIG_HAVE_KVM_MSI y
140 140 set_kernel_config CONFIG_KVM y
141 141 set_kernel_config CONFIG_KVM_ARM_HOST y
142 142 set_kernel_config CONFIG_KVM_ARM_PMU y
143 143 set_kernel_config CONFIG_KVM_COMPAT y
144 144 set_kernel_config CONFIG_KVM_GENERIC_DIRTYLOG_READ_PROTECT y
145 145 set_kernel_config CONFIG_KVM_MMIO y
146 146 set_kernel_config CONFIG_KVM_VFIO y
147 147 set_kernel_config CONFIG_KVM_MMU_AUDIT y
148 148 set_kernel_config CONFIG_VHOST m
149 149 set_kernel_config CONFIG_VHOST_CROSS_ENDIAN_LEGACY y
150 150 set_kernel_config CONFIG_VHOST_NET m
151 151 set_kernel_config CONFIG_VIRTUALIZATION y
152 152 set_kernel_config CONFIG_MMU_NOTIFIER y
153 153
154 154 set_kernel_config CONFIG_SLAB_FREELIST_RANDOM=y
155 155 set_kernel_config CONFIG_SLAB_FREELIST_HARDENED=y
156 156
157 157 # erratum
158 158 set_kernel_config ARM64_ERRATUM_834220 y
159 159 # https://sourceforge.net/p/kvm/mailman/message/18440797/
160 160 set_kernel_config CONFIG_PREEMPT_NOTIFIERS y
161 161 fi
162 162
163 163 # enable apparmor,integrity audit,
164 164 if [ "$KERNEL_SECURITY" = true ] ; then
165 165
166 166 # security filesystem, security models and audit
167 167 set_kernel_config CONFIG_SECURITYFS y
168 168 set_kernel_config CONFIG_SECURITY y
169 169 set_kernel_config CONFIG_AUDIT y
170 170
171 171 # harden strcpy and memcpy
172 172 set_kernel_config CONFIG_HARDENED_USERCOPY y
173 173 set_kernel_config CONFIG_HAVE_HARDENED_USERCOPY_ALLOCATOR y
174 174 set_kernel_config CONFIG_FORTIFY_SOURCE y
175 175
176 176 # integrity sub-system
177 177 set_kernel_config CONFIG_INTEGRITY y
178 178 set_kernel_config CONFIG_INTEGRITY_ASYMMETRIC_KEYS y
179 179 set_kernel_config CONFIG_INTEGRITY_AUDIT y
180 180 set_kernel_config CONFIG_INTEGRITY_SIGNATURE y
181 181 set_kernel_config CONFIG_INTEGRITY_TRUSTED_KEYRING y
182 182
183 183 # This option provides support for retaining authentication tokens and access keys in the kernel.
184 184 set_kernel_config CONFIG_KEYS y
185 185 set_kernel_config CONFIG_KEYS_COMPAT y
186 186
187 187 # Apparmor
188 188 set_kernel_config CONFIG_SECURITY_APPARMOR_BOOTPARAM_VALUE 0
189 189 set_kernel_config CONFIG_SECURITY_APPARMOR_HASH_DEFAULT y
190 190 set_kernel_config CONFIG_DEFAULT_SECURITY_APPARMOR y
191 191 set_kernel_config CONFIG_SECURITY_APPARMOR y
192 192 set_kernel_config CONFIG_SECURITY_APPARMOR_HASH y
193 193 set_kernel_config CONFIG_DEFAULT_SECURITY "apparmor"
194 194
195 195 # restrictions on unprivileged users reading the kernel
196 196 set_kernel_config CONFIG_SECURITY_DMESG_RESTRICT y
197 197
198 198 # network security hooks
199 199 set_kernel_config CONFIG_SECURITY_NETWORK y
200 200 set_kernel_config CONFIG_SECURITY_NETWORK_XFRM y
201 201 set_kernel_config CONFIG_SECURITY_PATH y
202 202 set_kernel_config CONFIG_SECURITY_YAMA n
203 203
204 204 # New Options
205 205 if [ "$KERNEL_NF" = true ] ; then
206 206 set_kernel_config CONFIG_IP_NF_SECURITY m
207 207 set_kernel_config CONFIG_NETLABEL y
208 208 set_kernel_config CONFIG_IP6_NF_SECURITY m
209 209 fi
210 210 set_kernel_config CONFIG_SECURITY_SELINUX n
211 211 set_kernel_config CONFIG_SECURITY_SMACK n
212 212 set_kernel_config CONFIG_SECURITY_TOMOYO n
213 213 set_kernel_config CONFIG_SECURITY_APPARMOR_DEBUG n
214 214 set_kernel_config CONFIG_SECURITY_LOADPIN n
215 215 set_kernel_config CONFIG_HARDENED_USERCOPY_PAGESPAN n
216 216 set_kernel_config CONFIG_IMA n
217 217 set_kernel_config CONFIG_EVM n
218 218 set_kernel_config CONFIG_FANOTIFY_ACCESS_PERMISSIONS y
219 219 set_kernel_config CONFIG_NFSD_V4_SECURITY_LABEL y
220 220 set_kernel_config CONFIG_PKCS7_MESSAGE_PARSER y
221 221 set_kernel_config CONFIG_SYSTEM_TRUSTED_KEYRING y
222 222 set_kernel_config CONFIG_SYSTEM_TRUSTED_KEYS y
223 223 set_kernel_config CONFIG_SYSTEM_EXTRA_CERTIFICATE y
224 224 set_kernel_config CONFIG_SECONDARY_TRUSTED_KEYRING y
225 225 set_kernel_config CONFIG_IMA_KEYRINGS_PERMIT_SIGNED_BY_BUILTIN_OR_SECONDARY n
226 226 set_kernel_config CONFIG_SYSTEM_TRUSTED_KEYS m
227 227 set_kernel_config CONFIG_SYSTEM_EXTRA_CERTIFICATE_SIZE 4096
228 228
229 229 set_kernel_config CONFIG_ARM64_CRYPTO y
230 230 set_kernel_config CONFIG_CRYPTO_SHA256_ARM64 m
231 231 set_kernel_config CONFIG_CRYPTO_SHA512_ARM64 m
232 232 set_kernel_config CONFIG_CRYPTO_SHA1_ARM64_CE m
233 233 set_kernel_config CRYPTO_GHASH_ARM64_CE m
234 234 set_kernel_config CRYPTO_SHA2_ARM64_CE m
235 235 set_kernel_config CONFIG_CRYPTO_CRCT10DIF_ARM64_CE m
236 236 set_kernel_config CONFIG_CRYPTO_CRC32_ARM64_CE m
237 237 set_kernel_config CONFIG_CRYPTO_AES_ARM64 m
238 238 set_kernel_config CONFIG_CRYPTO_AES_ARM64_CE m
239 239 set_kernel_config CONFIG_CRYPTO_AES_ARM64_CE_CCM y
240 240 set_kernel_config CONFIG_CRYPTO_AES_ARM64_CE_BLK y
241 241 set_kernel_config CONFIG_CRYPTO_AES_ARM64_NEON_BLK m
242 242 set_kernel_config CONFIG_CRYPTO_CHACHA20_NEON m
243 243 set_kernel_config CONFIG_CRYPTO_AES_ARM64_BS m
244 244 set_kernel_config SYSTEM_TRUSTED_KEYS
245 245 fi
246 246
247 247 # Netfilter kernel support See https://github.com/raspberrypi/linux/issues/2177#issuecomment-354647406
248 248 if [ "$KERNEL_NF" = true ] ; then
249 249 set_kernel_config CONFIG_IP_NF_TARGET_SYNPROXY m
250 250 set_kernel_config CONFIG_NETFILTER_XT_TARGET_AUDIT m
251 251 set_kernel_config CONFIG_NETFILTER_XT_MATCH_CGROUP m
252 252 set_kernel_config CONFIG_NETFILTER_XT_MATCH_IPCOMP m
253 253 set_kernel_config CONFIG_NETFILTER_XT_MATCH_SOCKET m
254 254 set_kernel_config CONFIG_NFT_FIB_INET m
255 255 set_kernel_config CONFIG_NFT_FIB_IPV4 m
256 256 set_kernel_config CONFIG_NFT_FIB_IPV6 m
257 257 set_kernel_config CONFIG_NFT_FIB_NETDEV m
258 258 set_kernel_config CONFIG_NFT_OBJREF m
259 259 set_kernel_config CONFIG_NFT_RT m
260 260 set_kernel_config CONFIG_NFT_SET_BITMAP m
261 261 set_kernel_config CONFIG_NF_CONNTRACK_TIMEOUT y
262 262 set_kernel_config CONFIG_NF_LOG_ARP m
263 263 set_kernel_config CONFIG_NF_SOCKET_IPV4 m
264 264 set_kernel_config CONFIG_NF_SOCKET_IPV6 m
265 265 set_kernel_config CONFIG_BRIDGE_EBT_BROUTE m
266 266 set_kernel_config CONFIG_BRIDGE_EBT_T_FILTER m
267 267 set_kernel_config CONFIG_BRIDGE_NF_EBTABLES m
268 268 set_kernel_config CONFIG_IP6_NF_IPTABLES m
269 269 set_kernel_config CONFIG_IP6_NF_MATCH_AH m
270 270 set_kernel_config CONFIG_IP6_NF_MATCH_EUI64 m
271 271 set_kernel_config CONFIG_IP6_NF_NAT m
272 272 set_kernel_config CONFIG_IP6_NF_TARGET_MASQUERADE m
273 273 set_kernel_config CONFIG_IP6_NF_TARGET_NPT m
274 274 set_kernel_config CONFIG_IP_NF_SECURITY m
275 275 set_kernel_config CONFIG_IP_SET_BITMAP_IPMAC m
276 276 set_kernel_config CONFIG_IP_SET_BITMAP_PORT m
277 277 set_kernel_config CONFIG_IP_SET_HASH_IP m
278 278 set_kernel_config CONFIG_IP_SET_HASH_IPMARK m
279 279 set_kernel_config CONFIG_IP_SET_HASH_IPPORT m
280 280 set_kernel_config CONFIG_IP_SET_HASH_IPPORTIP m
281 281 set_kernel_config CONFIG_IP_SET_HASH_IPPORTNET m
282 282 set_kernel_config CONFIG_IP_SET_HASH_MAC m
283 283 set_kernel_config CONFIG_IP_SET_HASH_NET m
284 284 set_kernel_config CONFIG_IP_SET_HASH_NETIFACE m
285 285 set_kernel_config CONFIG_IP_SET_HASH_NETNET m
286 286 set_kernel_config CONFIG_IP_SET_HASH_NETPORT m
287 287 set_kernel_config CONFIG_IP_SET_HASH_NETPORTNET m
288 288 set_kernel_config CONFIG_IP_SET_LIST_SET m
289 289 set_kernel_config CONFIG_NETFILTER_XTABLES m
290 290 set_kernel_config CONFIG_NETFILTER_XTABLES m
291 291 set_kernel_config CONFIG_NFT_BRIDGE_META m
292 292 set_kernel_config CONFIG_NFT_BRIDGE_REJECT m
293 293 set_kernel_config CONFIG_NFT_CHAIN_NAT_IPV4 m
294 294 set_kernel_config CONFIG_NFT_CHAIN_NAT_IPV6 m
295 295 set_kernel_config CONFIG_NFT_CHAIN_ROUTE_IPV4 m
296 296 set_kernel_config CONFIG_NFT_CHAIN_ROUTE_IPV6 m
297 297 set_kernel_config CONFIG_NFT_COMPAT m
298 298 set_kernel_config CONFIG_NFT_COUNTER m
299 299 set_kernel_config CONFIG_NFT_CT m
300 300 set_kernel_config CONFIG_NFT_DUP_IPV4 m
301 301 set_kernel_config CONFIG_NFT_DUP_IPV6 m
302 302 set_kernel_config CONFIG_NFT_DUP_NETDEV m
303 303 set_kernel_config CONFIG_NFT_EXTHDR m
304 304 set_kernel_config CONFIG_NFT_FWD_NETDEV m
305 305 set_kernel_config CONFIG_NFT_HASH m
306 306 set_kernel_config CONFIG_NFT_LIMIT m
307 307 set_kernel_config CONFIG_NFT_LOG m
308 308 set_kernel_config CONFIG_NFT_MASQ m
309 309 set_kernel_config CONFIG_NFT_MASQ_IPV4 m
310 310 set_kernel_config CONFIG_NFT_MASQ_IPV6 m
311 311 set_kernel_config CONFIG_NFT_META m
312 312 set_kernel_config CONFIG_NFT_NAT m
313 313 set_kernel_config CONFIG_NFT_NUMGEN m
314 314 set_kernel_config CONFIG_NFT_QUEUE m
315 315 set_kernel_config CONFIG_NFT_QUOTA m
316 316 set_kernel_config CONFIG_NFT_REDIR m
317 317 set_kernel_config CONFIG_NFT_REDIR_IPV4 m
318 318 set_kernel_config CONFIG_NFT_REDIR_IPV6 m
319 319 set_kernel_config CONFIG_NFT_REJECT m
320 320 set_kernel_config CONFIG_NFT_REJECT_INET m
321 321 set_kernel_config CONFIG_NFT_REJECT_IPV4 m
322 322 set_kernel_config CONFIG_NFT_REJECT_IPV6 m
323 323 set_kernel_config CONFIG_NFT_SET_HASH m
324 324 set_kernel_config CONFIG_NFT_SET_RBTREE m
325 325 set_kernel_config CONFIG_NF_CONNTRACK_IPV4 m
326 326 set_kernel_config CONFIG_NF_CONNTRACK_IPV6 m
327 327 set_kernel_config CONFIG_NF_DEFRAG_IPV4 m
328 328 set_kernel_config CONFIG_NF_DEFRAG_IPV6 m
329 329 set_kernel_config CONFIG_NF_DUP_IPV4 m
330 330 set_kernel_config CONFIG_NF_DUP_IPV6 m
331 331 set_kernel_config CONFIG_NF_DUP_NETDEV m
332 332 set_kernel_config CONFIG_NF_LOG_BRIDGE m
333 333 set_kernel_config CONFIG_NF_LOG_IPV4 m
334 334 set_kernel_config CONFIG_NF_LOG_IPV6 m
335 335 set_kernel_config CONFIG_NF_NAT_IPV4 m
336 336 set_kernel_config CONFIG_NF_NAT_IPV6 m
337 337 set_kernel_config CONFIG_NF_NAT_MASQUERADE_IPV4 y
338 338 set_kernel_config CONFIG_NF_NAT_MASQUERADE_IPV6 y
339 339 set_kernel_config CONFIG_NF_NAT_PPTP m
340 340 set_kernel_config CONFIG_NF_NAT_PROTO_GRE m
341 341 set_kernel_config CONFIG_NF_NAT_REDIRECT y
342 342 set_kernel_config CONFIG_NF_NAT_SIP m
343 343 set_kernel_config CONFIG_NF_NAT_SNMP_BASIC m
344 344 set_kernel_config CONFIG_NF_NAT_TFTP m
345 345 set_kernel_config CONFIG_NF_REJECT_IPV4 m
346 346 set_kernel_config CONFIG_NF_REJECT_IPV6 m
347 347 set_kernel_config CONFIG_NF_TABLES m
348 348 set_kernel_config CONFIG_NF_TABLES_ARP m
349 349 set_kernel_config CONFIG_NF_TABLES_BRIDGE m
350 350 set_kernel_config CONFIG_NF_TABLES_INET m
351 351 set_kernel_config CONFIG_NF_TABLES_IPV4 y
352 352 set_kernel_config CONFIG_NF_TABLES_IPV6 y
353 353 set_kernel_config CONFIG_NF_TABLES_NETDEV m
354 354 set_kernel_config CONFIG_NF_TABLES_SET m
355 355 set_kernel_config CONFIG_NF_TABLES_INET y
356 356 set_kernel_config CONFIG_NF_TABLES_NETDEV y
357 357 set_kernel_config CONFIG_NFT_CONNLIMIT m
358 358 set_kernel_config CONFIG_NFT_TUNNEL m
359 359 set_kernel_config CONFIG_NFT_SOCKET m
360 360 set_kernel_config CONFIG_NFT_TPROXY m
361 361 set_kernel_config CONFIG_NF_FLOW_TABLE m
362 362 set_kernel_config CONFIG_NFT_FLOW_OFFLOAD m
363 363 set_kernel_config CONFIG_NF_FLOW_TABLE_INET m
364 364 set_kernel_config CONFIG_NF_TABLES_ARP y
365 365 set_kernel_config CONFIG_NF_FLOW_TABLE_IPV4 y
366 366 set_kernel_config CONFIG_NF_FLOW_TABLE_IPV6 y
367 367 set_kernel_config CONFIG_NF_TABLES_BRIDGE y
368 368 set_kernel_config CONFIG_NF_CT_NETLINK_TIMEOUT m
369 369 set_kernel_config CONFIG_NFT_OSF m
370 370
371 371 fi
372 372
373 373 # 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
374 374 if [ "$KERNEL_BPF" = true ] ; then
375 375 set_kernel_config CONFIG_BPF_SYSCALL y
376 376 set_kernel_config CONFIG_BPF_EVENTS y
377 377 set_kernel_config CONFIG_BPF_STREAM_PARSER y
378 378 set_kernel_config CONFIG_CGROUP_BPF y
379 set_kernel_config CONFIG_XDP_SOCKETS y
379 380 fi
380 381
381 382 # KERNEL_DEFAULT_GOV was set by user
382 383 if [ "$KERNEL_DEFAULT_GOV" != powersave ] && [ -n "$KERNEL_DEFAULT_GOV" ] ; then
383 384
384 385 case "$KERNEL_DEFAULT_GOV" in
385 386 performance)
386 387 set_kernel_config CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE y
387 388 ;;
388 389 userspace)
389 390 set_kernel_config CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE y
390 391 ;;
391 392 ondemand)
392 393 set_kernel_config CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND y
393 394 ;;
394 395 conservative)
395 396 set_kernel_config CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE y
396 397 ;;
397 398 shedutil)
398 399 set_kernel_config CONFIG_CPU_FREQ_DEFAULT_GOV_SCHEDUTIL y
399 400 ;;
400 401 *)
401 402 echo "error: unsupported default cpu governor"
402 403 exit 1
403 404 ;;
404 405 esac
405 406
406 407 # unset previous default governor
407 408 unset_kernel_config CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE
408 409 fi
409 410
410 411 #Revert to previous directory
411 412 cd "${WORKDIR}" || exit
412 413
413 414 # Set kernel configuration parameters to enable qemu emulation
414 415 if [ "$ENABLE_QEMU" = true ] ; then
415 416 echo "CONFIG_FHANDLE=y" >> "${KERNEL_DIR}"/.config
416 417 echo "CONFIG_LBDAF=y" >> "${KERNEL_DIR}"/.config
417 418
418 419 if [ "$KERNEL_CRYPTFS" = true ] ; then
419 420 {
420 421 echo "CONFIG_EMBEDDED=y"
421 422 echo "CONFIG_EXPERT=y"
422 423 echo "CONFIG_DAX=y"
423 424 echo "CONFIG_MD=y"
424 425 echo "CONFIG_BLK_DEV_MD=y"
425 426 echo "CONFIG_MD_AUTODETECT=y"
426 427 echo "CONFIG_BLK_DEV_DM=y"
427 428 echo "CONFIG_BLK_DEV_DM_BUILTIN=y"
428 429 echo "CONFIG_DM_CRYPT=y"
429 430 echo "CONFIG_CRYPTO_BLKCIPHER=y"
430 431 echo "CONFIG_CRYPTO_CBC=y"
431 432 echo "CONFIG_CRYPTO_XTS=y"
432 433 echo "CONFIG_CRYPTO_SHA512=y"
433 434 echo "CONFIG_CRYPTO_MANAGER=y"
434 435 } >> "${KERNEL_DIR}"/.config
435 436 fi
436 437 fi
437 438
438 439 # Copy custom kernel configuration file
439 440 if [ -n "$KERNELSRC_USRCONFIG" ] ; then
440 441 cp "$KERNELSRC_USRCONFIG" "${KERNEL_DIR}"/.config
441 442 fi
442 443
443 444 # Set kernel configuration parameters to their default values
444 445 if [ "$KERNEL_OLDDEFCONFIG" = true ] ; then
445 446 make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" olddefconfig
446 447 fi
447 448
448 449 # Start menu-driven kernel configuration (interactive)
449 450 if [ "$KERNEL_MENUCONFIG" = true ] ; then
450 451 make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" menuconfig
451 452 fi
452 453 # end if "$KERNELSRC_CONFIG" = true
453 454 fi
454 455
455 456 # Use ccache to cross compile the kernel
456 457 if [ "$KERNEL_CCACHE" = true ] ; then
457 458 cc="ccache ${CROSS_COMPILE}gcc"
458 459 else
459 460 cc="${CROSS_COMPILE}gcc"
460 461 fi
461 462
462 463 # Cross compile kernel and dtbs
463 464 make -C "${KERNEL_DIR}" -j"${KERNEL_THREADS}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" CC="${cc}" "${KERNEL_BIN_IMAGE}" dtbs
464 465
465 466 # Cross compile kernel modules
466 467 if grep -q "CONFIG_MODULES=y" "${KERNEL_DIR}/.config" ; then
467 468 make -C "${KERNEL_DIR}" -j"${KERNEL_THREADS}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" CC="${cc}" modules
468 469 fi
469 470 # end if "$KERNELSRC_PREBUILT" = false
470 471 fi
471 472
472 473 # Check if kernel compilation was successful
473 474 if [ ! -r "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/${KERNEL_BIN_IMAGE}" ] ; then
474 475 echo "error: kernel compilation failed! (kernel image not found)"
475 476 cleanup
476 477 exit 1
477 478 fi
478 479
479 480 # Install kernel modules
480 481 if [ "$ENABLE_REDUCE" = true ] ; then
481 482 if grep -q "CONFIG_MODULES=y" "${KERNEL_DIR}/.config" ; then
482 483 make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" INSTALL_MOD_STRIP=1 INSTALL_MOD_PATH=../../.. modules_install
483 484 fi
484 485 else
485 486 if grep -q "CONFIG_MODULES=y" "${KERNEL_DIR}/.config" ; then
486 487 make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" INSTALL_MOD_PATH=../../.. modules_install
487 488 fi
488 489
489 490 # Install kernel firmware
490 491 if grep -q "^firmware_install:" "${KERNEL_DIR}/Makefile" ; then
491 492 make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" INSTALL_FW_PATH=../../../lib firmware_install
492 493 fi
493 494 fi
494 495
495 496 # Install kernel headers
496 497 if [ "$KERNEL_HEADERS" = true ] && [ "$KERNEL_REDUCE" = false ] ; then
497 498 make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" INSTALL_HDR_PATH=../.. headers_install
498 499 fi
499 500
500 501 # Prepare boot (firmware) directory
501 502 mkdir "${BOOT_DIR}"
502 503
503 504 # Get kernel release version
504 505 KERNEL_VERSION=$(cat "${KERNEL_DIR}/include/config/kernel.release")
505 506
506 507 # Copy kernel configuration file to the boot directory
507 508 install_readonly "${KERNEL_DIR}/.config" "${R}/boot/config-${KERNEL_VERSION}"
508 509
509 510 # Prepare device tree directory
510 511 mkdir "${BOOT_DIR}/overlays"
511 512
512 513 # Ensure the proper .dtb is located
513 514 if [ "$KERNEL_ARCH" = "arm" ] ; then
514 515 for dtb in "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/"*.dtb ; do
515 516 if [ -f "${dtb}" ] ; then
516 517 install_readonly "${dtb}" "${BOOT_DIR}/"
517 518 fi
518 519 done
519 520 else
520 521 for dtb in "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/broadcom/"*.dtb ; do
521 522 if [ -f "${dtb}" ] ; then
522 523 install_readonly "${dtb}" "${BOOT_DIR}/"
523 524 fi
524 525 done
525 526 fi
526 527
527 528 # Copy compiled dtb device tree files
528 529 if [ -d "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/overlays" ] ; then
529 530 for dtb in "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/overlays/"*.dtbo ; do
530 531 if [ -f "${dtb}" ] ; then
531 532 install_readonly "${dtb}" "${BOOT_DIR}/overlays/"
532 533 fi
533 534 done
534 535
535 536 if [ -f "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/overlays/README" ] ; then
536 537 install_readonly "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/overlays/README" "${BOOT_DIR}/overlays/README"
537 538 fi
538 539 fi
539 540
540 541 if [ "$ENABLE_UBOOT" = false ] ; then
541 542 # Convert and copy kernel image to the boot directory
542 543 "${KERNEL_DIR}/scripts/mkknlimg" "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/${KERNEL_BIN_IMAGE}" "${BOOT_DIR}/${KERNEL_IMAGE}"
543 544 else
544 545 # Copy kernel image to the boot directory
545 546 install_readonly "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/${KERNEL_BIN_IMAGE}" "${BOOT_DIR}/${KERNEL_IMAGE}"
546 547 fi
547 548
548 549 # Remove kernel sources
549 550 if [ "$KERNEL_REMOVESRC" = true ] ; then
550 551 rm -fr "${KERNEL_DIR}"
551 552 else
552 553 # Prepare compiled kernel modules
553 554 if grep -q "CONFIG_MODULES=y" "${KERNEL_DIR}/.config" ; then
554 555 if grep -q "^modules_prepare:" "${KERNEL_DIR}/Makefile" ; then
555 556 make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" modules_prepare
556 557 fi
557 558
558 559 # Create symlinks for kernel modules
559 560 chroot_exec ln -sf /usr/src/linux "/lib/modules/${KERNEL_VERSION}/build"
560 561 chroot_exec ln -sf /usr/src/linux "/lib/modules/${KERNEL_VERSION}/source"
561 562 fi
562 563 fi
563 564
564 565 else # BUILD_KERNEL=false
565 566 if [ "$SET_ARCH" = 64 ] ; then
566 567 if [ "$RPI_MODEL" = 3 ] || [ "$RPI_MODEL" = 3P ] ; then
567 568 # Use Sakakis modified kernel if ZSWAP is active
568 569 if [ "$KERNEL_ZSWAP" = true ] || [ "$KERNEL_VIRT" = true ] || [ "$KERNEL_NF" = true ] || [ "$KERNEL_BPF" = true ] ; then
569 570 RPI3_64_KERNEL_URL="${RPI3_64_BIS_KERNEL_URL}"
570 571 fi
571 572
572 573 # Create temporary directory for dl
573 574 temp_dir=$(as_nobody mktemp -d)
574 575
575 576 # Fetch kernel dl
576 577 as_nobody wget -O "${temp_dir}"/kernel.tar.xz -c "$RPI3_64_KERNEL_URL"
577 578 fi
578 579 if [ "$SET_ARCH" = 64 ] && [ "$RPI_MODEL" = 4 ] ; then
579 580 # Create temporary directory for dl
580 581 temp_dir=$(as_nobody mktemp -d)
581 582
582 583 # Fetch kernel dl
583 584 as_nobody wget -O "${temp_dir}"/kernel.tar.xz -c "$RPI4_64_KERNEL_URL"
584 585 fi
585 586
586 587 #extract download
587 588 tar -xJf "${temp_dir}"/kernel.tar.xz -C "${temp_dir}"
588 589
589 590 #move extracted kernel to /boot/firmware
590 591 mkdir "${R}/boot/firmware"
591 592 cp "${temp_dir}"/boot/* "${R}"/boot/firmware/
592 593 cp -r "${temp_dir}"/lib/* "${R}"/lib/
593 594
594 595 # Remove temporary directory for kernel sources
595 596 rm -fr "${temp_dir}"
596 597
597 598 # Set permissions of the kernel sources
598 599 chown -R root:root "${R}/boot/firmware"
599 600 chown -R root:root "${R}/lib/modules"
600 601 fi
601 602
602 603 # Install Kernel from hypriot comptabile with all Raspberry PI (dunno if its compatible with RPI4 - better compile your own kernel)
603 604 if [ "$SET_ARCH" = 32 ] && [ "$RPI_MODEL" != 4 ] ; then
604 605 # Create temporary directory for dl
605 606 temp_dir=$(as_nobody mktemp -d)
606 607
607 608 # Fetch kernel
608 609 as_nobody wget -O "${temp_dir}"/kernel.deb -c "$RPI_32_KERNEL_URL"
609 610
610 611 # Copy downloaded kernel package
611 612 mv "${temp_dir}"/kernel.deb "${R}"/tmp/kernel.deb
612 613
613 614 # Set permissions
614 615 chown -R root:root "${R}"/tmp/kernel.deb
615 616
616 617 # Install kernel
617 618 chroot_exec dpkg -i /tmp/kernel.deb
618 619
619 620 # move /boot to /boot/firmware to fit script env.
620 621 #mkdir "${BOOT_DIR}"
621 622 mkdir "${temp_dir}"/firmware
622 623 mv "${R}"/boot/* "${temp_dir}"/firmware/
623 624 mv "${temp_dir}"/firmware "${R}"/boot/
624 625
625 626 #same for kernel headers
626 627 if [ "$KERNEL_HEADERS" = true ] ; then
627 628 # Fetch kernel header
628 629 as_nobody wget -O "${temp_dir}"/kernel-header.deb -c "$RPI_32_KERNELHEADER_URL"
629 630 mv "${temp_dir}"/kernel-header.deb "${R}"/tmp/kernel-header.deb
630 631 chown -R root:root "${R}"/tmp/kernel-header.deb
631 632 # Install kernel header
632 633 chroot_exec dpkg -i /tmp/kernel-header.deb
633 634 rm -f "${R}"/tmp/kernel-header.deb
634 635 fi
635 636
636 637 # Remove temporary directory and files
637 638 rm -fr "${temp_dir}"
638 639 rm -f "${R}"/tmp/kernel.deb
639 640 fi
640 641
641 642 # Check if kernel installation was successful
642 643 KERNEL="$(ls -1 "${R}"/boot/firmware/kernel* | sort | tail -n 1)"
643 644 if [ -z "$KERNEL" ] ; then
644 645 echo "error: kernel installation failed! (/boot/kernel* not found)"
645 646 cleanup
646 647 exit 1
647 648 fi
648 649 fi
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