Done.
Compiled and tested with importconfig. Works with openssl speed -evp aes-256-cbc -elapsed -engine afalg (no engine specified required after modifying openssl conf).
Still need testing with openvpn/openssh if possible,
Tried to test openvpn:
time openvpn --engine afalg --test-crypto --secret /tmp/secret --verb 0 --tun-mtu 20000 --cipher aes-256-cbc
Got cipher error on 1st run:
Mon Mar 1 19:39:07 2021 cipher_ctx_update: EVP_CipherUpdate() failed
dmesg:
[ 2278.586698] ------------[ cut here ]------------
[ 2278.586737] WARNING: CPU: 2 PID: 4612 at lib/refcount.c:28 refcount_warn_saturate+0x13c/0x174
[ 2278.586742] refcount_t: underflow; use-after-free.
[ 2278.586747] Modules linked in: algif_skcipher af_alg i2c_dev lima gpu_sched spi_mt65xx pwm_mediatek mtk_pmic_keys [last unloaded: cryptodev]
[ 2278.586798] CPU: 2 PID: 4612 Comm: openvpn Tainted: G O 5.10.18-bpi-r2-main #1
[ 2278.586803] Hardware name: Mediatek Cortex-A7 (Device Tree)
[ 2278.586809] Backtrace:
[ 2278.586827] [<c0dc9cf8>] (dump_backtrace) from [<c0dca0a4>] (show_stack+0x20/0x24)
[ 2278.586837] r7:0000001c r6:600d0013 r5:00000000 r4:c14ef938
[ 2278.586850] [<c0dca084>] (show_stack) from [<c0dcdd48>] (dump_stack+0xcc/0xe0)
[ 2278.586862] [<c0dcdc7c>] (dump_stack) from [<c0126840>] (__warn+0xfc/0x114)
[ 2278.586871] r7:0000001c r6:c057a580 r5:00000009 r4:c1181000
[ 2278.586881] [<c0126744>] (__warn) from [<c0dca7b4>] (warn_slowpath_fmt+0xa8/0xc4)
[ 2278.586890] r7:0000001c r6:c1181000 r5:c118103c r4:d3640000
[ 2278.586902] [<c0dca710>] (warn_slowpath_fmt) from [<c057a580>] (refcount_warn_saturate+0x13c/0x174)
[ 2278.586913] r9:c75d61c0 r8:00000000 r7:000000f6 r6:d3640000 r5:0051d3f0 r4:c5b7fa80
[ 2278.586927] [<c057a444>] (refcount_warn_saturate) from [<c037dfa4>] (sys_io_submit+0x6d4/0x8d4)
[ 2278.586939] [<c037d8d0>] (sys_io_submit) from [<c0100060>] (ret_fast_syscall+0x0/0x54)
[ 2278.586945] Exception stack(0xd3641fa8 to 0xd3641ff0)
[ 2278.586955] 1fa0: 00000000 00000000 b6fc7000 00000001 bed958e4 00000020
[ 2278.586965] 1fc0: 00000000 00000000 bed958e4 000000f6 b6f9a000 bed958e8 00000000 bed958f4
[ 2278.586972] 1fe0: bed958c0 bed958b0 b6f88698 b6c08e30
[ 2278.586982] r10:000000f6 r9:d3640000 r8:c0100264 r7:000000f6 r6:bed958e4 r5:00000000
[ 2278.586988] r4:00000000
[ 2278.586994] ---[ end trace 54f7a3c195c24c86 ]---
and kernel panic on 2nd run:
serial output:
r2-gentoo login: af_algaf_alg[ 2357.439515] Internal error: Oops: 5 [#1] SMP ARM
[ 2357.444256] Modules linked in: algif_skcipher afdev lima gpu_sched spi_mt65xx pwm_mediatek mtk_pmic_keys [last unloaded: af_alg]
[ 2357.456905] CPU: 2 PID: 4629 Comm: openvpn Tainted: G W O 5.10.18-bpi-r2-main #1
[ 2357.465595] Hardware name: Mediatek Cortex-A7 (Device Tree)
[ 2357.471271] PC is at release_sock+0x3c/0x90
[ 2357.475524] LR is at release_sock+0x24/0x90
[ 2357.479779] pc : [<c0a7f440>] lr : [<c0a7f428>] psr: 600d0013
[ 2357.486148] sp : d54cdd80 ip : d54cdd80 fp : d54cdd94
[ 2357.491456] r10: c47ad6c0 r9 : d54cc000 r8 : 00000000
[ 2357.496765] r7 : 00000030 r6 : c5f66c00 r5 : c5f66c70 r4 : c5f66c00
[ 2357.503390] r3 : 00000000 r2 : 00000007 r1 : 00000007 r0 : c5f66c70
[ 2357.510018] Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none
[ 2357.517268] Control: 10c5387d Table: 954bc06a DAC: 00000051
[ 2357.523116] Process openvpn (pid: 4629, stack limit = 0x777cd319)
[ 2357.529314] Stack: (0xd54cdd80 to 0xd54ce000)
[ 2357.533748] dd80: 00000000 c5f65000 d54cddb4 d54cdd98 bf04208c c0a7f410 c81aea80 d54cdf40
[ 2357.542059] dda0: 00000010 00000030 d54cddd4 d54cddb8 bf042300 bf04200c d54cdf40 00000010
[ 2357.550373] ddc0: c81aea80 00000030 d54cde34 d54cddd8 c0a787c0 bf0422e8 00000000 00000051
[ 2357.558685] dde0: d54cde34 d54cddf0 c0a7a40c c0576960 d54cde40 d54cdf48 e06fc5c4 00000000
[ 2357.566999] de00: beb028e8 92899668 e06fc5c4 00000000 d54cdf40 d54cc000 c81aea80 00000000
[ 2357.575304] de20: 00000000 00000128 d54cdf2c d54cde38 c0a7a4ac c0a78604 00000000 92899668
[ 2357.583613] de40: 00000000 00597038 00000010 c15bb6c0 c157dd08 c75d62c0 00000051 beb02998
[ 2357.591926] de60: 00000001 00000001 c0378f10 d54cded8 c75d61c0 00000001 d54cc000 beb02998
[ 2357.600240] de80: d54cc000 000000f5 d54cdeb4 d54cde98 c037b15c c037ad78 00000001 c75d61c0
[ 2357.608554] dea0: 00000001 c037b3d0 d54cdf5c d54cdeb8 c037b3d0 c01a2a9c d54cded8 c036fcf8
[ 2357.616868] dec0: 00000000 c2ee7db0 00000000 beb02998 00000000 00000000 00000001 00000008
[ 2357.625183] dee0: 00000004 00000000 00000000 d54cdee0 00000000 c033dbd0 d54cdf14 d54cdf08
[ 2357.633495] df00: c033dbd0 92899668 d54cc000 beb028f4 00000000 c81aea80 c0100264 d54cc000
[ 2357.641806] df20: d54cdf94 d54cdf30 c0a7a928 c0a7a438 00000000 00000000 00000000 fffffff7
[ 2357.650116] df40: 00000000 00000000 00000005 00000000 00000010 d54cde44 00000001 c037b2d0
[ 2357.658430] df60: c47ad6c0 92899668 00000030 00000000 00000000 92899668 0058d0a0 0059bebc
[ 2357.666743] df80: b6f12840 00000128 d54cdfa4 d54cdf98 c0a7a980 c0a7a8d0 00000000 d54cdfa8
[ 2357.675053] dfa0: c0100060 c0a7a970 0058d0a0 0059bebc 00000006 beb028f4 00000000 00000000
[ 2357.683364] dfc0: 0058d0a0 0059bebc b6f12840 00000128 b6ee3000 beb028e8 00000001 beb028f4
[ 2357.691676] dfe0: b6ee3054 beb028a8 b6ed1598 b6b57458 600d0010 00000006 000000000
[ 2357.699983] Backtrace:
[ 2357.702512] [<c0a7f404>] (release_sock) from [<bf04208c>] (skcipher_check_key+0x8c/0x90 [algif_skcipher])
[ 2357.712241] r5:c5f65000 r4:00000000
[ 2357.715889] [<bf042000>] (skcipher_check_key [algif_skcipher]) from [<bf042300>] (skcipher_sendmsg_nokey+0x24/0x54 [algif_skcipher])
[ 2357.727991] r7:00000030 r6:00000010 r5:d54cdf40 r4:c81aea80
[ 2357.733760] [<bf0422dc>] (skcipher_sendmsg_nokey [algif_skcipher]) from [<c0a787c0>] (____sys_sendmsg+0x1c8/0x260)
[ 2357.744282] r7:00000030 r6:c81aea80 r5:00000010 r4:d54cdf40
[ 2357.750053] [<c0a785f8>] (____sys_sendmsg) from [<c0a7a4ac>] (___sys_sendmsg+0x80/0xac)
[ 2357.758194] r10:00000128 r9:00000000 r8:00000000 r7:c81aea80 r6:d54cc000 r5:d54cdf40
[ 2357.766147] r4:00000000
[ 2357.768746] [<c0a7a42c>] (___sys_sendmsg) from [<c0a7a928>] (__sys_sendmsg+0x64/0xa0)
[ 2357.776713] r9:d54cc000 r8:c0100264 r7:c81aea80 r6:00000000 r5:beb028f4 r4:d54cc000
[ 2357.784585] [<c0a7a8c4>] (__sys_sendmsg) from [<c0a7a980>] (sys_sendmsg+0x1c/0x20)
[ 2357.792284] r7:00000128 r6:b6f12840 r5:0059bebc r4:0058d0a0
[ 2357.798050] [<c0a7a964>] (sys_sendmsg) from [<c0100060>] (ret_fast_syscall+0x0/0x54)
[ 2357.805921] Exception stack(0xd54cdfa8 to 0xd54cdff0)
[ 2357.811064] dfa0: 0058d0a0 0059bebc 00000006 beb028f4 00000000 00000000
[ 2357.819378] dfc0: 0058d0a0 0059bebc b6f12840 00000128 b6ee3000 beb028e8 00000001 beb028f4
[ 2357.827682] dfe0: b6ee3054 beb028a8 b6ed1598 b6b57458
[ 2357.832821] Code: 0a000001 e1a00004 ebffffaf e5943020 (e5933048)
[ 2357.839071] ---[ end trace 54f7a3c195c24c87 ]---
[ 2357.843798] Kernel panic - not syncing: Fatal exception in interrupt
[ 2357.843820] CPU0: stopping
[ 2357.843833] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G D W O 5.10.18-bpi-r2-main #1
[ 2357.843836] Hardware name: Mediatek Cortex-A7 (Device Tree)
[ 2357.843839] Backtrace:
[ 2357.843862] [<c0dc9cf8>] (dump_backtrace) from [<c0dca0a4>] (show_stack+0x20/0x24)
[ 2357.843870] r7:00000000 r6:60030193 r5:00000000 r4:c14ef938
[ 2357.843880] [<c0dca084>] (show_stack) from [<c0dcdd48>] (dump_stack+0xcc/0xe0)
[ 2357.843890] [<c0dcdc7c>] (dump_stack) from [<c0110290>] (do_handle_IPI+0x328/0x35c)
[ 2357.843897] r7:00000000 r6:00000000 r5:c1572e40 r4:c15bb640
[ 2357.843905] [<c010ff68>] (do_handle_IPI) from [<c01102ec>] (ipi_handler+0x28/0x30)
[ 2357.843913] r9:c1401ed0 r8:c2029000 r7:00000000 r6:1e1f2000 r5:c2030e00 r4:00000014
[ 2357.843923] [<c01102c4>] (ipi_handler) from [<c01946d4>] (handle_percpu_devid_fasteoi_ipi+0x90/0x160)
[ 2357.843933] [<c0194644>] (handle_percpu_devid_fasteoi_ipi) from [<c018d76c>] (generic_handle_irq+0x44/0x54)
[ 2357.843939] r7:00000000 r6:00000001 r5:00000000 r4:c13a6c24
[ 2357.843948] [<c018d728>] (generic_handle_irq) from [<c018de7c>] (__handle_domain_irq+0x6c/0xc0)
[ 2357.843957] [<c018de10>] (__handle_domain_irq) from [<c010135c>] (gic_handle_irq+0x8c/0xa0)
[ 2357.843965] r9:c1401ed0 r8:e100200c r7:c13a6c30 r6:e1002000 r5:c14ef9f8 r4:c14057cc
[ 2357.843973] [<c01012d0>] (gic_handle_irq) from [<c0100b0c>] (__irq_svc+0x6c/0x90)
[ 2357.843977] Exception stack(0xc1401ed0 to 0xc1401f18)
[ 2357.843983] 1ec0: 00000000 01779ccc df59a304 c011ee40
[ 2357.843991] 1ee0: c1573ba0 00000000 c1404f10 c1404f58 c1572634 c114496c e07fcd00 c1401f2c
[ 2357.843997] 1f00: c1401f30 c1401f20 c01096e4 c01096e8 60030013 ffffffff
[ 2357.844005] r9:c1400000 r8:c1572634 r7:c1401f04 r6:ffffffff r5:60030013 r4:c01096e8
[ 2357.844018] [<c01096a0>] (arch_cpu_idle) from [<c0de1148>] (default_idle_call+0x48/0x10c)
[ 2357.844027] [<c0de1100>] (default_idle_call) from [<c015f500>] (do_idle+0xe4/0x150)
[ 2357.844032] r5:00000000 r4:c1400000
[ 2357.844039] [<c015f41c>] (do_idle) from [<c015f83c>] (cpu_startup_entry+0x28/0x2c)
[ 2357.844047] r9:c1357a54 r8:00000000 r7:c1357a54 r6:c1404ec0 r5:c1400000 r4:000000d8
[ 2357.844055] [<c015f814>] (cpu_startup_entry) from [<c0dda448>] (rest_init+0xbc/0xc4)
[ 2357.844067] [<c0dda38c>] (rest_init) from [<c1300ad8>] (arch_call_rest_init+0x18/0x1c)
[ 2357.844072] r5:c1400000 r4:c15bb040
[ 2357.844081] [<c1300ac0>] (arch_call_rest_init) from [<c1301078>] (start_kernel+0x524/0x55c)
[ 2357.844090] [<c1300b54>] (start_kernel) from [<00000000>] (0x0)
[ 2357.844096] CPU3: stopping
[ 2357.844104] CPU: 3 PID: 4536 Comm: emerge Tainted: G D W O 5.10.18-bpi-r2-main #1
[ 2357.844107] Hardware name: Mediatek Cortex-A7 (Device Tree)
[ 2357.844109] Backtrace:
[ 2357.844121] [<c0dc9cf8>] (dump_backtrace) from [<c0dca0a4>] (show_stack+0x20/0x24)
[ 2357.844128] r7:00000000 r6:60030193 r5:00000000 r4:c14ef938
[ 2357.844136] [<c0dca084>] (show_stack) from [<c0dcdd48>] (dump_stack+0xcc/0xe0)
[ 2357.844145] [<c0dcdc7c>] (dump_stack) from [<c0110290>] (do_handle_IPI+0x328/0x35c)
[ 2357.844151] r7:00000000 r6:00000003 r5:c1572e40 r4:c15bb640
[ 2357.844159] [<c010ff68>] (do_handle_IPI) from [<c01102ec>] (ipi_handler+0x28/0x30)
[ 2357.844167] r9:ca16dfb0 r8:c2029000 r7:00000000 r6:1e22e000 r5:c2030e00 r4:00000014
[ 2357.844175] [<c01102c4>] (ipi_handler) from [<c01946d4>] (handle_percpu_devid_fasteoi_ipi+0x90/0x160)
[ 2357.844184] [<c0194644>] (handle_percpu_devid_fasteoi_ipi) from [<c018d76c>] (generic_handle_irq+0x44/0x54)
[ 2357.844190] r7:00000000 r6:00000001 r5:00000000 r4:c13a6c24
[ 2357.844200] [<c018d728>] (generic_handle_irq) from [<c018de7c>] (__handle_domain_irq+0x6c/0xc0)
[ 2357.844208] [<c018de10>] (__handle_domain_irq) from [<c010135c>] (gic_handle_irq+0x8c/0xa0)
[ 2357.844216] r9:ca16dfb0 r8:e100200c r7:c13a6c30 r6:e1002000 r5:c14ef9f8 r4:c14057cc
[ 2357.844223] [<c01012d0>] (gic_handle_irq) from [<c0100eb4>] (__irq_usr+0x54/0x80)
[ 2357.844227] Exception stack(0xca16dfb0 to 0xca16dff8)
[ 2357.844232] dfa0: b6569e60 b660acc4 00000040 0000003f
[ 2357.844240] dfc0: 00000030 b660aca0 7e486a30 00517f64 b660aca0 b6f22000 7e486a30 00000040
[ 2357.844246] dfe0: b6f30798 beacb800 00001e2c b6cd8180 80030010 ffffffff
[ 2357.844254] r9:b6f22000 r8:10c5387d r7:10c5387d r6:ffffffff r5:80030010 r4:b6cd8180
[ 2357.844259] CPU1: stopping
[ 2357.844266] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G D W O 5.10.18-bpi-r2-main #1
[ 2357.844269] Hardware name: Mediatek Cortex-A7 (Device Tree)
[ 2357.844271] Backtrace:
[ 2357.844283] [<c0dc9cf8>] (dump_backtrace) from [<c0dca0a4>] (show_stack+0x20/0x24)
[ 2357.844290] r7:00000000 r6:60030193 r5:00000000 r4:c14ef938
[ 2357.844298] [<c0dca084>] (show_stack) from [<c0dcdd48>] (dump_stack+0xcc/0xe0)
[ 2357.844306] [<c0dcdc7c>] (dump_stack) from [<c0110290>] (do_handle_IPI+0x328/0x35c)
[ 2357.844313] r7:00000000 r6:00000001 r5:c1572e40 r4:c15bb640
[ 2357.844320] [<c010ff68>] (do_handle_IPI) from [<c01102ec>] (ipi_handler+0x28/0x30)
[ 2357.844328] r9:c2171f30 r8:c2029000 r7:00000000 r6:1e206000 r5:c2030e00 r4:00000014 357.844376] r9:c2171f30 r8:e100200c r7:c13a6c30 r6:e1002000 r5:c14ef9f8 r4:c14057cc
[ 2357.844383] [<c01012d0>] (gic_handle_irq) from [<c0100b0c>] (__irq_svc+0x6c/0x90)
[ 2357.844387] Exception stack(0xc2171f30 to 0xc2171f78)
[ 2357.844393] 1f20: 00000000 00d5c648 df5ae304 c011ee40
[ 2357.844400] 1f40: c1573ba0 00000001 c1404f10 c1404f58 c1572634 c114496c 00000000 c2171f8c
[ 2357.844407] 1f60: c2171f90 c2171f80 c01096e4 c01096e8 60030013 ffffffff
[ 2357.844414] r9:c2170000 r8:c1572634 r7:c2171f64 r6:ffffffff r5:60030013 r4:c01096e8
[ 2357.844424] [<c01096a0>] (arch_cpu_idle) from [<c0de1148>] (default_idle_call+0x48/0x10c)
[ 2357.844433] [<c0de1100>] (default_idle_call) from [<c015f500>] (do_idle+0xe4/0x150)
[ 2357.844437] r5:00000001 r4:c2170000
[ 2357.844444] [<c015f41c>] (do_idle) from [<c015f83c>] (cpu_startup_entry+0x28/0x2c)
[ 2357.844452] r9:410fc073 r8:8000406a r7:c15bb650 r6:10c0387d r5:00000001 r4:00000091
[ 2357.844460] [<c015f814>] (cpu_startup_entry) from [<c0110bcc>] (secondary_start_kernel+0x170/0x194)
[ 2357.844468] [<c0110a5c>] (secondary_start_kernel) from [<801017cc>] (0x801017cc)
[ 2357.844472] r5:00000051 r4:8216806a
[ 2358.971480] Rebooting in 3 seconds..357.844337] [<c01102c4>] (ipi_handler) from [<c01946d4>] (handle_percpu_devid_fasteoi_ipi+0x90/0x160)
[ 2357.844345] [<c0194644>] (handle_percpu_devid_fasteoi_ipi) from [<c018d76c>] (generic_handle_irq+0x44/0x54)
[ 2357.844351] r7:00000000 r6:00000001 r5:00000000 r4:c13a6c24
[ 2357.844360] [<c018d728>] (generic_handle_irq) from [<c018de7c>] (__handle_domain_irq+0x6c/0xc0)
[ 2357.844368] [<c018de10>] (__handle_domain_irq) from [<c010135c>] (gic_handle_irq+0x8c/0xa0)
[ 2357.844376] r9:c2171f30 r8:e100200c r7:c13a6c30 r6:e1002000 r5:c14ef9f8 r4:c14057cc
[ 2357.844383] [<c01012d0>] (gic_handle_irq) from [<c0100b0c>] (__irq_svc+0x6c/0x90)
[ 2357.844387] Exception stack(0xc2171f30 to 0xc2171f78)
[ 2357.844393] 1f20: 00000000 00d5c648 df5ae304 c011ee40
[ 2357.844400] 1f40: c1573ba0 00000001 c1404f10 c1404f58 c1572634 c114496c 00000000 c2171f8c
[ 2357.844407] 1f60: c2171f90 c2171f80 c01096e4 c01096e8 60030013 ffffffff
[ 2357.844414] r9:c2170000 r8:c1572634 r7:c2171f64 r6:ffffffff r5:60030013 r4:c01096e8
[ 2357.844424] [<c01096a0>] (arch_cpu_idle) from [<c0de1148>] (default_idle_call+0x48/0x10c)
[ 2357.844433] [<c0de1100>] (default_idle_call) from [<c015f500>] (do_idle+0xe4/0x150)
[ 2357.844437] r5:00000001 r4:c2170000
[ 2357.844444] [<c015f41c>] (do_idle) from [<c015f83c>] (cpu_startup_entry+0x28/0x2c)
[ 2357.844452] r9:410fc073 r8:8000406a r7:c15bb650 r6:10c0387d r5:00000001 r4:00000091
[ 2357.844460] [<c015f814>] (cpu_startup_entry) from [<c0110bcc>] (secondary_start_kernel+0x170/0x194)
[ 2357.844468] [<c0110a5c>] (secondary_start_kernel) from [<801017cc>] (0x801017cc)
[ 2357.844472] r5:00000051 r4:8216806a
[ 2358.971480] Rebooting in 3 seconds..
UPD:
openvpn test success depends on --tun-mtu in works great with --tun-mtu 8192, and fails with --tun-mtu 16384
