diff options
35 files changed, 64 insertions, 2676 deletions
diff --git a/LICENSES b/LICENSES index cd04fb6e84..530893b1dc 100644 --- a/LICENSES +++ b/LICENSES @@ -389,26 +389,3 @@ Copyright 2001 by Stephen L. Moshier <moshier@na-net.ornl.gov> You should have received a copy of the GNU Lesser General Public License along with this library; if not, see <https://www.gnu.org/licenses/>. */ - -sysdeps/aarch64/chacha20-aarch64.S, sysdeps/x86_64/chacha20-amd64-sse2.S, -sysdeps/x86_64/chacha20-amd64-avx2.S, and -sysdeps/powerpc/powerpc64/power8/chacha20-ppc.c, and -sysdeps/s390/s390-64/chacha20-s390x.S imports code from libgcrypt, -with the following notices: - -Copyright (C) 2017-2019 Jussi Kivilinna <jussi.kivilinna@iki.fi> - -This file is part of Libgcrypt. - -Libgcrypt is free software; you can redistribute it and/or modify -it under the terms of the GNU Lesser General Public License as -published by the Free Software Foundation; either version 2.1 of -the License, or (at your option) any later version. - -Libgcrypt is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU Lesser General Public License for more details. - -You should have received a copy of the GNU Lesser General Public -License along with this program; if not, see <https://www.gnu.org/licenses/>. diff --git a/NEWS b/NEWS index 5827b206d9..bc1aac1270 100644 --- a/NEWS +++ b/NEWS @@ -61,8 +61,8 @@ Major new features: is not defined (if __cpp_char8_t is defined, then char8_t is a builtin type). * The functions arc4random, arc4random_buf, and arc4random_uniform have been - added. The functions use a pseudo-random number generator along with - entropy from the kernel. + added. The functions wrap getrandom and/or /dev/urandom to return high- + quality randomness from the kernel. * Support for LoongArch running on Linux has been added. This port requires as least binutils 2.38, GCC 12, and Linux 5.19. Currently only hard-float diff --git a/include/stdlib.h b/include/stdlib.h index cae7f7cdf8..db51f4a4f6 100644 --- a/include/stdlib.h +++ b/include/stdlib.h @@ -152,9 +152,6 @@ __typeof (arc4random_uniform) __arc4random_uniform; libc_hidden_proto (__arc4random_uniform); extern void __arc4random_buf_internal (void *buffer, size_t len) attribute_hidden; -/* Called from the fork function to reinitialize the internal cipher state - in child process. */ -extern void __arc4random_fork_subprocess (void) attribute_hidden; extern double __strtod_internal (const char *__restrict __nptr, char **__restrict __endptr, int __group) diff --git a/manual/math.texi b/manual/math.texi index 76132e9cd5..7f0499ab8d 100644 --- a/manual/math.texi +++ b/manual/math.texi @@ -1993,17 +1993,10 @@ This section describes the random number functions provided as a GNU extension, based on OpenBSD interfaces. @Theglibc{} uses kernel entropy obtained either through @code{getrandom} -or by reading @file{/dev/urandom} to seed and periodically re-seed the -internal state. A per-thread data pool is used, which allows fast output -generation. +or by reading @file{/dev/urandom} to seed. -Although these functions provide higher random quality than ISO, BSD, and -SVID functions, these still use a Pseudo-Random generator and should not -be used in cryptographic contexts. - -The internal state is cleared and reseeded with kernel entropy on @code{fork} -and @code{_Fork}. It is not cleared on either a direct @code{clone} syscall -or when using @theglibc{} @code{syscall} function. +These functions provide higher random quality than ISO, BSD, and SVID +functions, and may be used in cryptographic contexts. The prototypes for these functions are in @file{stdlib.h}. @pindex stdlib.h diff --git a/stdlib/Makefile b/stdlib/Makefile index a900962685..f7b25c1981 100644 --- a/stdlib/Makefile +++ b/stdlib/Makefile @@ -246,7 +246,6 @@ tests := \ # tests tests-internal := \ - tst-arc4random-chacha20 \ tst-strtod1i \ tst-strtod3 \ tst-strtod4 \ @@ -256,7 +255,6 @@ tests-internal := \ # tests-internal tests-static := \ - tst-arc4random-chacha20 \ tst-secure-getenv \ # tests-static diff --git a/stdlib/arc4random.c b/stdlib/arc4random.c index 65547e79aa..e417ef624d 100644 --- a/stdlib/arc4random.c +++ b/stdlib/arc4random.c @@ -1,4 +1,4 @@ -/* Pseudo Random Number Generator based on ChaCha20. +/* Pseudo Random Number Generator Copyright (C) 2022 Free Software Foundation, Inc. This file is part of the GNU C Library. @@ -16,7 +16,6 @@ License along with the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ -#include <arc4random.h> #include <errno.h> #include <not-cancel.h> #include <stdio.h> @@ -24,53 +23,6 @@ #include <sys/mman.h> #include <sys/param.h> #include <sys/random.h> -#include <tls-internal.h> - -/* arc4random keeps two counters: 'have' is the current valid bytes not yet - consumed in 'buf' while 'count' is the maximum number of bytes until a - reseed. - - Both the initial seed and reseed try to obtain entropy from the kernel - and abort the process if none could be obtained. - - The state 'buf' improves the usage of the cipher calls, allowing to call - optimized implementations (if the architecture provides it) and minimize - function call overhead. */ - -#include <chacha20.c> - -/* Called from the fork function to reset the state. */ -void -__arc4random_fork_subprocess (void) -{ - struct arc4random_state_t *state = __glibc_tls_internal ()->rand_state; - if (state != NULL) - { - explicit_bzero (state, sizeof (*state)); - /* Force key init. */ - state->count = -1; - } -} - -/* Return the current thread random state or try to create one if there is - none available. In the case malloc can not allocate a state, arc4random - will try to get entropy with arc4random_getentropy. */ -static struct arc4random_state_t * -arc4random_get_state (void) -{ - struct arc4random_state_t *state = __glibc_tls_internal ()->rand_state; - if (state == NULL) - { - state = malloc (sizeof (struct arc4random_state_t)); - if (state != NULL) - { - /* Force key initialization on first call. */ - state->count = -1; - __glibc_tls_internal ()->rand_state = state; - } - } - return state; -} static void arc4random_getrandom_failure (void) @@ -78,106 +30,63 @@ arc4random_getrandom_failure (void) __libc_fatal ("Fatal glibc error: cannot get entropy for arc4random\n"); } -static void -arc4random_rekey (struct arc4random_state_t *state, uint8_t *rnd, size_t rndlen) +void +__arc4random_buf (void *p, size_t n) { - chacha20_crypt (state->ctx, state->buf, state->buf, sizeof state->buf); - - /* Mix optional user provided data. */ - if (rnd != NULL) - { - size_t m = MIN (rndlen, CHACHA20_KEY_SIZE + CHACHA20_IV_SIZE); - for (size_t i = 0; i < m; i++) - state->buf[i] ^= rnd[i]; - } - - /* Immediately reinit for backtracking resistance. */ - chacha20_init (state->ctx, state->buf, state->buf + CHACHA20_KEY_SIZE); - explicit_bzero (state->buf, CHACHA20_KEY_SIZE + CHACHA20_IV_SIZE); - state->have = sizeof (state->buf) - (CHACHA20_KEY_SIZE + CHACHA20_IV_SIZE); -} + static int seen_initialized; + size_t l; + int fd; -static void -arc4random_getentropy (void *rnd, size_t len) -{ - if (__getrandom_nocancel (rnd, len, GRND_NONBLOCK) == len) + if (n == 0) return; - int fd = TEMP_FAILURE_RETRY (__open64_nocancel ("/dev/urandom", - O_RDONLY | O_CLOEXEC)); - if (fd != -1) + for (;;) { - uint8_t *p = rnd; - uint8_t *end = p + len; - do + l = TEMP_FAILURE_RETRY (__getrandom_nocancel (p, n, 0)); + if (l > 0) { - ssize_t ret = TEMP_FAILURE_RETRY (__read_nocancel (fd, p, end - p)); - if (ret <= 0) - arc4random_getrandom_failure (); - p += ret; + if ((size_t) l == n) + return; /* Done reading, success. */ + p = (uint8_t *) p + l; + n -= l; + continue; /* Interrupted by a signal; keep going. */ } - while (p < end); - - if (__close_nocancel (fd) == 0) - return; + else if (l < 0 && errno == ENOSYS) + break; /* No syscall, so fallback to /dev/urandom. */ + arc4random_getrandom_failure (); } - arc4random_getrandom_failure (); -} -/* Check if the thread context STATE should be reseed with kernel entropy - depending of requested LEN bytes. If there is less than requested, - the state is either initialized or reseeded, otherwise the internal - counter subtract the requested length. */ -static void -arc4random_check_stir (struct arc4random_state_t *state, size_t len) -{ - if (state->count <= len || state->count == -1) + if (atomic_load_relaxed (&seen_initialized) == 0) { - uint8_t rnd[CHACHA20_KEY_SIZE + CHACHA20_IV_SIZE]; - arc4random_getentropy (rnd, sizeof rnd); - - if (state->count == -1) - chacha20_init (state->ctx, rnd, rnd + CHACHA20_KEY_SIZE); - else - arc4random_rekey (state, rnd, sizeof rnd); - - explicit_bzero (rnd, sizeof rnd); - - /* Invalidate the buf. */ - state->have = 0; - memset (state->buf, 0, sizeof state->buf); - state->count = CHACHA20_RESEED_SIZE; + /* Poll /dev/random as an approximation of RNG initialization. */ + struct pollfd pfd = { .events = POLLIN }; + pfd.fd = TEMP_FAILURE_RETRY ( + __open64_nocancel ("/dev/random", O_RDONLY | O_CLOEXEC | O_NOCTTY)); + if (pfd.fd < 0) + arc4random_getrandom_failure (); + if (TEMP_FAILURE_RETRY (__poll_infinity_nocancel (&pfd, 1)) < 0) + arc4random_getrandom_failure (); + if (__close_nocancel (pfd.fd) < 0) + arc4random_getrandom_failure (); + atomic_store_relaxed (&seen_initialized, 1); } - else - state->count -= len; -} -void -__arc4random_buf (void *buffer, size_t len) -{ - struct arc4random_state_t *state = arc4random_get_state (); - if (__glibc_unlikely (state == NULL)) - { - arc4random_getentropy (buffer, len); - return; - } - - arc4random_check_stir (state, len); - while (len > 0) + fd = TEMP_FAILURE_RETRY ( + __open64_nocancel ("/dev/urandom", O_RDONLY | O_CLOEXEC | O_NOCTTY)); + if (fd < 0) + arc4random_getrandom_failure (); + for (;;) { - if (state->have > 0) - { - size_t m = MIN (len, state->have); - uint8_t *ks = state->buf + sizeof (state->buf) - state->have; - memcpy (buffer, ks, m); - explicit_bzero (ks, m); - buffer += m; - len -= m; - state->have -= m; - } - if (state->have == 0) - arc4random_rekey (state, NULL, 0); + l = TEMP_FAILURE_RETRY (__read_nocancel (fd, p, n)); + if (l <= 0) + arc4random_getrandom_failure (); + if ((size_t) l == n) + break; /* Done reading, success. */ + p = (uint8_t *) p + l; + n -= l; } + if (__close_nocancel (fd) < 0) + arc4random_getrandom_failure (); } libc_hidden_def (__arc4random_buf) weak_alias (__arc4random_buf, arc4random_buf) @@ -186,22 +95,7 @@ uint32_t __arc4random (void) { uint32_t r; - - struct arc4random_state_t *state = arc4random_get_state (); - if (__glibc_unlikely (state == NULL)) - { - arc4random_getentropy (&r, sizeof (uint32_t)); - return r; - } - - arc4random_check_stir (state, sizeof (uint32_t)); - if (state->have < sizeof (uint32_t)) - arc4random_rekey (state, NULL, 0); - uint8_t *ks = state->buf + sizeof (state->buf) - state->have; - memcpy (&r, ks, sizeof (uint32_t)); - memset (ks, 0, sizeof (uint32_t)); - state->have -= sizeof (uint32_t); - + __arc4random_buf (&r, sizeof (r)); return r; } libc_hidden_def (__arc4random) diff --git a/stdlib/arc4random.h b/stdlib/arc4random.h deleted file mode 100644 index cd39389c19..0000000000 --- a/stdlib/arc4random.h +++ /dev/null @@ -1,48 +0,0 @@ -/* Arc4random definition used on TLS. - Copyright (C) 2022 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <https://www.gnu.org/licenses/>. */ - -#ifndef _CHACHA20_H -#define _CHACHA20_H - -#include <stddef.h> -#include <stdint.h> - -/* Internal ChaCha20 state. */ -#define CHACHA20_STATE_LEN 16 -#define CHACHA20_BLOCK_SIZE 64 - -/* Maximum number bytes until reseed (16 MB). */ -#define CHACHA20_RESEED_SIZE (16 * 1024 * 1024) - -/* Internal arc4random buffer, used on each feedback step so offer some - backtracking protection and to allow better used of vectorized - chacha20 implementations. */ -#define CHACHA20_BUFSIZE (8 * CHACHA20_BLOCK_SIZE) - -_Static_assert (CHACHA20_BUFSIZE >= CHACHA20_BLOCK_SIZE + CHACHA20_BLOCK_SIZE, - "CHACHA20_BUFSIZE < CHACHA20_BLOCK_SIZE + CHACHA20_BLOCK_SIZE"); - -struct arc4random_state_t -{ - uint32_t ctx[CHACHA20_STATE_LEN]; - size_t have; - size_t count; - uint8_t buf[CHACHA20_BUFSIZE]; -}; - -#endif diff --git a/stdlib/chacha20.c b/stdlib/chacha20.c deleted file mode 100644 index 2745a81315..0000000000 --- a/stdlib/chacha20.c +++ /dev/null @@ -1,191 +0,0 @@ -/* Generic ChaCha20 implementation (used on arc4random). - Copyright (C) 2022 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <https://www.gnu.org/licenses/>. */ - -#include <array_length.h> -#include <endian.h> -#include <stddef.h> -#include <stdint.h> -#include <string.h> - -/* 32-bit stream position, then 96-bit nonce. */ -#define CHACHA20_IV_SIZE 16 -#define CHACHA20_KEY_SIZE 32 - -#define CHACHA20_STATE_LEN 16 - -/* The ChaCha20 implementation is based on RFC8439 [1], omitting the final - XOR of the keystream with the plaintext because the plaintext is a - stream of zeros. */ - -enum chacha20_constants -{ - CHACHA20_CONSTANT_EXPA = 0x61707865U, - CHACHA20_CONSTANT_ND_3 = 0x3320646eU, - CHACHA20_CONSTANT_2_BY = 0x79622d32U, - CHACHA20_CONSTANT_TE_K = 0x6b206574U -}; - -static inline uint32_t -read_unaligned_32 (const uint8_t *p) -{ - uint32_t r; - memcpy (&r, p, sizeof (r)); - return r; -} - -static inline void -write_unaligned_32 (uint8_t *p, uint32_t v) -{ - memcpy (p, &v, sizeof (v)); -} - -#if __BYTE_ORDER == __BIG_ENDIAN -# define read_unaligned_le32(p) __builtin_bswap32 (read_unaligned_32 (p)) -# define set_state(v) __builtin_bswap32 ((v)) -#else -# define read_unaligned_le32(p) read_unaligned_32 ((p)) -# define set_state(v) (v) -#endif - -static inline void -chacha20_init (uint32_t *state, const uint8_t *key, const uint8_t *iv) -{ - state[0] = CHACHA20_CONSTANT_EXPA; - state[1] = CHACHA20_CONSTANT_ND_3; - state[2] = CHACHA20_CONSTANT_2_BY; - state[3] = CHACHA20_CONSTANT_TE_K; - - state[4] = read_unaligned_le32 (key + 0 * sizeof (uint32_t)); - state[5] = read_unaligned_le32 (key + 1 * sizeof (uint32_t)); - state[6] = read_unaligned_le32 (key + 2 * sizeof (uint32_t)); - state[7] = read_unaligned_le32 (key + 3 * sizeof (uint32_t)); - state[8] = read_unaligned_le32 (key + 4 * sizeof (uint32_t)); - state[9] = read_unaligned_le32 (key + 5 * sizeof (uint32_t)); - state[10] = read_unaligned_le32 (key + 6 * sizeof (uint32_t)); - state[11] = read_unaligned_le32 (key + 7 * sizeof (uint32_t)); - - state[12] = read_unaligned_le32 (iv + 0 * sizeof (uint32_t)); - state[13] = read_unaligned_le32 (iv + 1 * sizeof (uint32_t)); - state[14] = read_unaligned_le32 (iv + 2 * sizeof (uint32_t)); - state[15] = read_unaligned_le32 (iv + 3 * sizeof (uint32_t)); -} - -static inline uint32_t -rotl32 (unsigned int shift, uint32_t word) -{ - return (word << (shift & 31)) | (word >> ((-shift) & 31)); -} - -static void -state_final (const uint8_t *src, uint8_t *dst, uint32_t v) -{ -#ifdef CHACHA20_XOR_FINAL - v ^= read_unaligned_32 (src); -#endif - write_unaligned_32 (dst, v); -} - -static inline void -chacha20_block (uint32_t *state, uint8_t *dst, const uint8_t *src) -{ - uint32_t x0, x1, x2, x3, x4, x5, x6, x7; - uint32_t x8, x9, x10, x11, x12, x13, x14, x15; - - x0 = state[0]; - x1 = state[1]; - x2 = state[2]; - x3 = state[3]; - x4 = state[4]; - x5 = state[5]; - x6 = state[6]; - x7 = state[7]; - x8 = state[8]; - x9 = state[9]; - x10 = state[10]; - x11 = state[11]; - x12 = state[12]; - x13 = state[13]; - x14 = state[14]; - x15 = state[15]; - - for (int i = 0; i < 20; i += 2) - { -#define QROUND(_x0, _x1, _x2, _x3) \ - do { \ - _x0 = _x0 + _x1; _x3 = rotl32 (16, (_x0 ^ _x3)); \ - _x2 = _x2 + _x3; _x1 = rotl32 (12, (_x1 ^ _x2)); \ - _x0 = _x0 + _x1; _x3 = rotl32 (8, (_x0 ^ _x3)); \ - _x2 = _x2 + _x3; _x1 = rotl32 (7, (_x1 ^ _x2)); \ - } while(0) - - QROUND (x0, x4, x8, x12); - QROUND (x1, x5, x9, x13); - QROUND (x2, x6, x10, x14); - QROUND (x3, x7, x11, x15); - - QROUND (x0, x5, x10, x15); - QROUND (x1, x6, x11, x12); - QROUND (x2, x7, x8, x13); - QROUND (x3, x4, x9, x14); - } - - state_final (&src[0], &dst[0], set_state (x0 + state[0])); - state_final (&src[4], &dst[4], set_state (x1 + state[1])); - state_final (&src[8], &dst[8], set_state (x2 + state[2])); - state_final (&src[12], &dst[12], set_state (x3 + state[3])); - state_final (&src[16], &dst[16], set_state (x4 + state[4])); - state_final (&src[20], &dst[20], set_state (x5 + state[5])); - state_final (&src[24], &dst[24], set_state (x6 + state[6])); - state_final (&src[28], &dst[28], set_state (x7 + state[7])); - state_final (&src[32], &dst[32], set_state (x8 + state[8])); - state_final (&src[36], &dst[36], set_state (x9 + state[9])); - state_final (&src[40], &dst[40], set_state (x10 + state[10])); - state_final (&src[44], &dst[44], set_state (x11 + state[11])); - state_final (&src[48], &dst[48], set_state (x12 + state[12])); - state_final (&src[52], &dst[52], set_state (x13 + state[13])); - state_final (&src[56], &dst[56], set_state (x14 + state[14])); - state_final (&src[60], &dst[60], set_state (x15 + state[15])); - - state[12]++; -} - -static void -__attribute_maybe_unused__ -chacha20_crypt_generic (uint32_t *state, uint8_t *dst, const uint8_t *src, - size_t bytes) -{ - while (bytes >= CHACHA20_BLOCK_SIZE) - { - chacha20_block (state, dst, src); - - bytes -= CHACHA20_BLOCK_SIZE; - dst += CHACHA20_BLOCK_SIZE; - src += CHACHA20_BLOCK_SIZE; - } - - if (__glibc_unlikely (bytes != 0)) - { - uint8_t stream[CHACHA20_BLOCK_SIZE]; - chacha20_block (state, stream, src); - memcpy (dst, stream, bytes); - explicit_bzero (stream, sizeof stream); - } -} - -/* Get the architecture optimized version. */ -#include <chacha20_arch.h> diff --git a/stdlib/tst-arc4random-chacha20.c b/stdlib/tst-arc4random-chacha20.c deleted file mode 100644 index 45ba54920d..0000000000 --- a/stdlib/tst-arc4random-chacha20.c +++ /dev/null @@ -1,167 +0,0 @@ -/* Basic tests for chacha20 cypher used in arc4random. - Copyright (C) 2022 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <https://www.gnu.org/licenses/>. */ - -#include <arc4random.h> -#include <support/check.h> -#include <sys/cdefs.h> - -/* The test does not define CHACHA20_XOR_FINAL to mimic what arc4random - actual does. */ -#include <chacha20.c> - -static int -do_test (void) -{ - const uint8_t key[CHACHA20_KEY_SIZE] = - { - 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, - 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, - 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, - 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, - }; - const uint8_t iv[CHACHA20_IV_SIZE] = - { - 0x0, 0x0, 0x0, 0x0, - 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, - }; - const uint8_t expected1[CHACHA20_BUFSIZE] = - { - 0x76, 0xb8, 0xe0, 0xad, 0xa0, 0xf1, 0x3d, 0x90, 0x40, 0x5d, 0x6a, - 0xe5, 0x53, 0x86, 0xbd, 0x28, 0xbd, 0xd2, 0x19, 0xb8, 0xa0, 0x8d, - 0xed, 0x1a, 0xa8, 0x36, 0xef, 0xcc, 0x8b, 0x77, 0x0d, 0xc7, 0xda, - 0x41, 0x59, 0x7c, 0x51, 0x57, 0x48, 0x8d, 0x77, 0x24, 0xe0, 0x3f, - 0xb8, 0xd8, 0x4a, 0x37, 0x6a, 0x43, 0xb8, 0xf4, 0x15, 0x18, 0xa1, - 0x1c, 0xc3, 0x87, 0xb6, 0x69, 0xb2, 0xee, 0x65, 0x86, 0x9f, 0x07, - 0xe7, 0xbe, 0x55, 0x51, 0x38, 0x7a, 0x98, 0xba, 0x97, 0x7c, 0x73, - 0x2d, 0x08, 0x0d, 0xcb, 0x0f, 0x29, 0xa0, 0x48, 0xe3, 0x65, 0x69, - 0x12, 0xc6, 0x53, 0x3e, 0x32, 0xee, 0x7a, 0xed, 0x29, 0xb7, 0x21, - 0x76, 0x9c, 0xe6, 0x4e, 0x43, 0xd5, 0x71, 0x33, 0xb0, 0x74, 0xd8, - 0x39, 0xd5, 0x31, 0xed, 0x1f, 0x28, 0x51, 0x0a, 0xfb, 0x45, 0xac, - 0xe1, 0x0a, 0x1f, 0x4b, 0x79, 0x4d, 0x6f, 0x2d, 0x09, 0xa0, 0xe6, - 0x63, 0x26, 0x6c, 0xe1, 0xae, 0x7e, 0xd1, 0x08, 0x19, 0x68, 0xa0, - 0x75, 0x8e, 0x71, 0x8e, 0x99, 0x7b, 0xd3, 0x62, 0xc6, 0xb0, 0xc3, - 0x46, 0x34, 0xa9, 0xa0, 0xb3, 0x5d, 0x01, 0x27, 0x37, 0x68, 0x1f, - 0x7b, 0x5d, 0x0f, 0x28, 0x1e, 0x3a, 0xfd, 0xe4, 0x58, 0xbc, 0x1e, - 0x73, 0xd2, 0xd3, 0x13, 0xc9, 0xcf, 0x94, 0xc0, 0x5f, 0xf3, 0x71, - 0x62, 0x40, 0xa2, 0x48, 0xf2, 0x13, 0x20, 0xa0, 0x58, 0xd7, 0xb3, - 0x56, 0x6b, 0xd5, 0x20, 0xda, 0xaa, 0x3e, 0xd2, 0xbf, 0x0a, 0xc5, - 0xb8, 0xb1, 0x20, 0xfb, 0x85, 0x27, 0x73, 0xc3, 0x63, 0x97, 0x34, - 0xb4, 0x5c, 0x91, 0xa4, 0x2d, 0xd4, 0xcb, 0x83, 0xf8, 0x84, 0x0d, - 0x2e, 0xed, 0xb1, 0x58, 0x13, 0x10, 0x62, 0xac, 0x3f, 0x1f, 0x2c, - 0xf8, 0xff, 0x6d, 0xcd, 0x18, 0x56, 0xe8, 0x6a, 0x1e, 0x6c, 0x31, - 0x67, 0x16, 0x7e, 0xe5, 0xa6, 0x88, 0x74, 0x2b, 0x47, 0xc5, 0xad, - 0xfb, 0x59, 0xd4, 0xdf, 0x76, 0xfd, 0x1d, 0xb1, 0xe5, 0x1e, 0xe0, - 0x3b, 0x1c, 0xa9, 0xf8, 0x2a, 0xca, 0x17, 0x3e, 0xdb, 0x8b, 0x72, - 0x93, 0x47, 0x4e, 0xbe, 0x98, 0x0f, 0x90, 0x4d, 0x10, 0xc9, 0x16, - 0x44, 0x2b, 0x47, 0x83, 0xa0, 0xe9, 0x84, 0x86, 0x0c, 0xb6, 0xc9, - 0x57, 0xb3, 0x9c, 0x38, 0xed, 0x8f, 0x51, 0xcf, 0xfa, 0xa6, 0x8a, - 0x4d, 0xe0, 0x10, 0x25, 0xa3, 0x9c, 0x50, 0x45, 0x46, 0xb9, 0xdc, - 0x14, 0x06, 0xa7, 0xeb, 0x28, 0x15, 0x1e, 0x51, 0x50, 0xd7, 0xb2, - 0x04, 0xba, 0xa7, 0x19, 0xd4, 0xf0, 0x91, 0x02, 0x12, 0x17, 0xdb, - 0x5c, 0xf1, 0xb5, 0xc8, 0x4c, 0x4f, 0xa7, 0x1a, 0x87, 0x96, 0x10, - 0xa1, 0xa6, 0x95, 0xac, 0x52, 0x7c, 0x5b, 0x56, 0x77, 0x4a, 0x6b, - 0x8a, 0x21, 0xaa, 0xe8, 0x86, 0x85, 0x86, 0x8e, 0x09, 0x4c, 0xf2, - 0x9e, 0xf4, 0x09, 0x0a, 0xf7, 0xa9, 0x0c, 0xc0, 0x7e, 0x88, 0x17, - 0xaa, 0x52, 0x87, 0x63, 0x79, 0x7d, 0x3c, 0x33, 0x2b, 0x67, 0xca, - 0x4b, 0xc1, 0x10, 0x64, 0x2c, 0x21, 0x51, 0xec, 0x47, 0xee, 0x84, - 0xcb, 0x8c, 0x42, 0xd8, 0x5f, 0x10, 0xe2, 0xa8, 0xcb, 0x18, 0xc3, - 0xb7, 0x33, 0x5f, 0x26, 0xe8, 0xc3, 0x9a, 0x12, 0xb1, 0xbc, 0xc1, - 0x70, 0x71, 0x77, 0xb7, 0x61, 0x38, 0x73, 0x2e, 0xed, 0xaa, 0xb7, - 0x4d, 0xa1, 0x41, 0x0f, 0xc0, 0x55, 0xea, 0x06, 0x8c, 0x99, 0xe9, - 0x26, 0x0a, 0xcb, 0xe3, 0x37, 0xcf, 0x5d, 0x3e, 0x00, 0xe5, 0xb3, - 0x23, 0x0f, 0xfe, 0xdb, 0x0b, 0x99, 0x07, 0x87, 0xd0, 0xc7, 0x0e, - 0x0b, 0xfe, 0x41, 0x98, 0xea, 0x67, 0x58, 0xdd, 0x5a, 0x61, 0xfb, - 0x5f, 0xec, 0x2d, 0xf9, 0x81, 0xf3, 0x1b, 0xef, 0xe1, 0x53, 0xf8, - 0x1d, 0x17, 0x16, 0x17, 0x84, 0xdb - }; - - const uint8_t expected2[CHACHA20_BUFSIZE] = - { - 0x1c, 0x88, 0x22, 0xd5, 0x3c, 0xd1, 0xee, 0x7d, 0xb5, 0x32, 0x36, - 0x48, 0x28, 0xbd, 0xf4, 0x04, 0xb0, 0x40, 0xa8, 0xdc, 0xc5, 0x22, - 0xf3, 0xd3, 0xd9, 0x9a, 0xec, 0x4b, 0x80, 0x57, 0xed, 0xb8, 0x50, - 0x09, 0x31, 0xa2, 0xc4, 0x2d, 0x2f, 0x0c, 0x57, 0x08, 0x47, 0x10, - 0x0b, 0x57, 0x54, 0xda, 0xfc, 0x5f, 0xbd, 0xb8, 0x94, 0xbb, 0xef, - 0x1a, 0x2d, 0xe1, 0xa0, 0x7f, 0x8b, 0xa0, 0xc4, 0xb9, 0x19, 0x30, - 0x10, 0x66, 0xed, 0xbc, 0x05, 0x6b, 0x7b, 0x48, 0x1e, 0x7a, 0x0c, - 0x46, 0x29, 0x7b, 0xbb, 0x58, 0x9d, 0x9d, 0xa5, 0xb6, 0x75, 0xa6, - 0x72, 0x3e, 0x15, 0x2e, 0x5e, 0x63, 0xa4, 0xce, 0x03, 0x4e, 0x9e, - 0x83, 0xe5, 0x8a, 0x01, 0x3a, 0xf0, 0xe7, 0x35, 0x2f, 0xb7, 0x90, - 0x85, 0x14, 0xe3, 0xb3, 0xd1, 0x04, 0x0d, 0x0b, 0xb9, 0x63, 0xb3, - 0x95, 0x4b, 0x63, 0x6b, 0x5f, 0xd4, 0xbf, 0x6d, 0x0a, 0xad, 0xba, - 0xf8, 0x15, 0x7d, 0x06, 0x2a, 0xcb, 0x24, 0x18, 0xc1, 0x76, 0xa4, - 0x75, 0x51, 0x1b, 0x35, 0xc3, 0xf6, 0x21, 0x8a, 0x56, 0x68, 0xea, - 0x5b, 0xc6, 0xf5, 0x4b, 0x87, 0x82, 0xf8, 0xb3, 0x40, 0xf0, 0x0a, - 0xc1, 0xbe, 0xba, 0x5e, 0x62, 0xcd, 0x63, 0x2a, 0x7c, 0xe7, 0x80, - 0x9c, 0x72, 0x56, 0x08, 0xac, 0xa5, 0xef, 0xbf, 0x7c, 0x41, 0xf2, - 0x37, 0x64, 0x3f, 0x06, 0xc0, 0x99, 0x72, 0x07, 0x17, 0x1d, 0xe8, - 0x67, 0xf9, 0xd6, 0x97, 0xbf, 0x5e, 0xa6, 0x01, 0x1a, 0xbc, 0xce, - 0x6c, 0x8c, 0xdb, 0x21, 0x13, 0x94, 0xd2, 0xc0, 0x2d, 0xd0, 0xfb, - 0x60, 0xdb, 0x5a, 0x2c, 0x17, 0xac, 0x3d, 0xc8, 0x58, 0x78, 0xa9, - 0x0b, 0xed, 0x38, 0x09, 0xdb, 0xb9, 0x6e, 0xaa, 0x54, 0x26, 0xfc, - 0x8e, 0xae, 0x0d, 0x2d, 0x65, 0xc4, 0x2a, 0x47, 0x9f, 0x08, 0x86, - 0x48, 0xbe, 0x2d, 0xc8, 0x01, 0xd8, 0x2a, 0x36, 0x6f, 0xdd, 0xc0, - 0xef, 0x23, 0x42, 0x63, 0xc0, 0xb6, 0x41, 0x7d, 0x5f, 0x9d, 0xa4, - 0x18, 0x17, 0xb8, 0x8d, 0x68, 0xe5, 0xe6, 0x71, 0x95, 0xc5, 0xc1, - 0xee, 0x30, 0x95, 0xe8, 0x21, 0xf2, 0x25, 0x24, 0xb2, 0x0b, 0xe4, - 0x1c, 0xeb, 0x59, 0x04, 0x12, 0xe4, 0x1d, 0xc6, 0x48, 0x84, 0x3f, - 0xa9, 0xbf, 0xec, 0x7a, 0x3d, 0xcf, 0x61, 0xab, 0x05, 0x41, 0x57, - 0x33, 0x16, 0xd3, 0xfa, 0x81, 0x51, 0x62, 0x93, 0x03, 0xfe, 0x97, - 0x41, 0x56, 0x2e, 0xd0, 0x65, 0xdb, 0x4e, 0xbc, 0x00, 0x50, 0xef, - 0x55, 0x83, 0x64, 0xae, 0x81, 0x12, 0x4a, 0x28, 0xf5, 0xc0, 0x13, - 0x13, 0x23, 0x2f, 0xbc, 0x49, 0x6d, 0xfd, 0x8a, 0x25, 0x68, 0x65, - 0x7b, 0x68, 0x6d, 0x72, 0x14, 0x38, 0x2a, 0x1a, 0x00, 0x90, 0x30, - 0x17, 0xdd, 0xa9, 0x69, 0x87, 0x84, 0x42, 0xba, 0x5a, 0xff, 0xf6, - 0x61, 0x3f, 0x55, 0x3c, 0xbb, 0x23, 0x3c, 0xe4, 0x6d, 0x9a, 0xee, - 0x93, 0xa7, 0x87, 0x6c, 0xf5, 0xe9, 0xe8, 0x29, 0x12, 0xb1, 0x8c, - 0xad, 0xf0, 0xb3, 0x43, 0x27, 0xb2, 0xe0, 0x42, 0x7e, 0xcf, 0x66, - 0xb7, 0xce, 0xb7, 0xc0, 0x91, 0x8d, 0xc4, 0x7b, 0xdf, 0xf1, 0x2a, - 0x06, 0x2a, 0xdf, 0x07, 0x13, 0x30, 0x09, 0xce, 0x7a, 0x5e, 0x5c, - 0x91, 0x7e, 0x01, 0x68, 0x30, 0x61, 0x09, 0xb7, 0xcb, 0x49, 0x65, - 0x3a, 0x6d, 0x2c, 0xae, 0xf0, 0x05, 0xde, 0x78, 0x3a, 0x9a, 0x9b, - 0xfe, 0x05, 0x38, 0x1e, 0xd1, 0x34, 0x8d, 0x94, 0xec, 0x65, 0x88, - 0x6f, 0x9c, 0x0b, 0x61, 0x9c, 0x52, 0xc5, 0x53, 0x38, 0x00, 0xb1, - 0x6c, 0x83, 0x61, 0x72, 0xb9, 0x51, 0x82, 0xdb, 0xc5, 0xee, 0xc0, - 0x42, 0xb8, 0x9e, 0x22, 0xf1, 0x1a, 0x08, 0x5b, 0x73, 0x9a, 0x36, - 0x11, 0xcd, 0x8d, 0x83, 0x60, 0x18 - }; - - /* Check with the expected internal arc4random keystream buffer. Some - architecture optimizations expects a buffer with a minimum size which - is a multiple of then ChaCha20 blocksize, so they might not be prepared - to handle smaller buffers. */ - - uint8_t output[CHACHA20_BUFSIZE]; - - uint32_t state[CHACHA20_STATE_LEN]; - chacha20_init (state, key, iv); - - /* Check with the initial state. */ - uint8_t input[CHACHA20_BUFSIZE] = { 0 }; - - chacha20_crypt (state, output, input, CHACHA20_BUFSIZE); - TEST_COMPARE_BLOB (output, sizeof output, expected1, CHACHA20_BUFSIZE); - - /* And on the next round. */ - chacha20_crypt (state, output, input, CHACHA20_BUFSIZE); - TEST_COMPARE_BLOB (output, sizeof output, expected2, CHACHA20_BUFSIZE); - - return 0; -} - -#include <support/test-driver.c> diff --git a/sysdeps/aarch64/Makefile b/sysdeps/aarch64/Makefile index 7dfd1b62dd..17fb1c5b72 100644 --- a/sysdeps/aarch64/Makefile +++ b/sysdeps/aarch64/Makefile @@ -51,10 +51,6 @@ ifeq ($(subdir),csu) gen-as-const-headers += tlsdesc.sym endif -ifeq ($(subdir),stdlib) -sysdep_routines += chacha20-aarch64 -endif - ifeq ($(subdir),gmon) CFLAGS-mcount.c += -mgeneral-regs-only endif diff --git a/sysdeps/aarch64/chacha20-aarch64.S b/sysdeps/aarch64/chacha20-aarch64.S deleted file mode 100644 index cce5291c5c..0000000000 --- a/sysdeps/aarch64/chacha20-aarch64.S +++ /dev/null @@ -1,314 +0,0 @@ -/* Optimized AArch64 implementation of ChaCha20 cipher. - Copyright (C) 2022 Free Software Foundation, Inc. - - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <https://www.gnu.org/licenses/>. */ - -/* Copyright (C) 2017-2019 Jussi Kivilinna <jussi.kivilinna@iki.fi> - - This file is part of Libgcrypt. - - Libgcrypt is free software; you can redistribute it and/or modify - it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of - the License, or (at your option) any later version. - - Libgcrypt is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with this program; if not, see <https://www.gnu.org/licenses/>. - */ - -/* Based on D. J. Bernstein reference implementation at - http://cr.yp.to/chacha.html: - - chacha-regs.c version 20080118 - D. J. Bernstein - Public domain. */ - -#include <sysdep.h> - -/* Only LE is supported. */ -#ifdef __AARCH64EL__ - -#define GET_DATA_POINTER(reg, name) \ - adrp reg, name ; \ - add reg, reg, :lo12:name - -/* 'ret' instruction replacement for straight-line speculation mitigation */ -#define ret_spec_stop \ - ret; dsb sy; isb; - -.cpu generic+simd - -.text - -/* register macros */ -#define INPUT x0 -#define DST x1 -#define SRC x2 -#define NBLKS x3 -#define ROUND x4 -#define INPUT_CTR x5 -#define INPUT_POS x6 -#define CTR x7 - -/* vector registers */ -#define X0 v16 -#define X4 v17 -#define X8 v18 -#define X12 v19 - -#define X1 v20 -#define X5 v21 - -#define X9 v22 -#define X13 v23 -#define X2 v24 -#define X6 v25 - -#define X3 v26 -#define X7 v27 -#define X11 v28 -#define X15 v29 - -#define X10 v30 -#define X14 v31 - -#define VCTR v0 -#define VTMP0 v1 -#define VTMP1 v2 -#define VTMP2 v3 -#define VTMP3 v4 -#define X12_TMP v5 -#define X13_TMP v6 -#define ROT8 v7 - -/********************************************************************** - helper macros - **********************************************************************/ - -#define _(...) __VA_ARGS__ - -#define vpunpckldq(s1, s2, dst) \ - zip1 dst.4s, s2.4s, s1.4s; - -#define vpunpckhdq(s1, s2, dst) \ - zip2 dst.4s, s2.4s, s1.4s; - -#define vpunpcklqdq(s1, s2, dst) \ - zip1 dst.2d, s2.2d, s1.2d; - -#define vpunpckhqdq(s1, s2, dst) \ - zip2 dst.2d, s2.2d, s1.2d; - -/* 4x4 32-bit integer matrix transpose */ -#define transpose_4x4(x0, x1, x2, x3, t1, t2, t3) \ - vpunpckhdq(x1, x0, t2); \ - vpunpckldq(x1, x0, x0); \ - \ - vpunpckldq(x3, x2, t1); \ - vpunpckhdq(x3, x2, x2); \ - \ - vpunpckhqdq(t1, x0, x1); \ - vpunpcklqdq(t1, x0, x0); \ - \ - vpunpckhqdq(x2, t2, x3); \ - vpunpcklqdq(x2, t2, x2); - -/********************************************************************** - 4-way chacha20 - **********************************************************************/ - -#define XOR(d,s1,s2) \ - eor d.16b, s2.16b, s1.16b; - -#define PLUS(ds,s) \ - add ds.4s, ds.4s, s.4s; - -#define ROTATE4(dst1,dst2,dst3,dst4,c,src1,src2,src3,src4) \ - shl dst1.4s, src1.4s, #(c); \ - shl dst2.4s, src2.4s, #(c); \ - shl dst3.4s, src3.4s, #(c); \ - shl dst4.4s, src4.4s, #(c); \ - sri dst1.4s, src1.4s, #(32 - (c)); \ - sri dst2.4s, src2.4s, #(32 - (c)); \ - sri dst3.4s, src3.4s, #(32 - (c)); \ - sri dst4.4s, src4.4s, #(32 - (c)); - -#define ROTATE4_8(dst1,dst2,dst3,dst4,src1,src2,src3,src4) \ - tbl dst1.16b, {src1.16b}, ROT8.16b; \ - tbl dst2.16b, {src2.16b}, ROT8.16b; \ - tbl dst3.16b, {src3.16b}, ROT8.16b; \ - tbl dst4.16b, {src4.16b}, ROT8.16b; - -#define ROTATE4_16(dst1,dst2,dst3,dst4,src1,src2,src3,src4) \ - rev32 dst1.8h, src1.8h; \ - rev32 dst2.8h, src2.8h; \ - rev32 dst3.8h, src3.8h; \ - rev32 dst4.8h, src4.8h; - -#define QUARTERROUND4(a1,b1,c1,d1,a2,b2,c2,d2,a3,b3,c3,d3,a4,b4,c4,d4,ign,tmp1,tmp2,tmp3,tmp4) \ - PLUS(a1,b1); PLUS(a2,b2); \ - PLUS(a3,b3); PLUS(a4,b4); \ - XOR(tmp1,d1,a1); XOR(tmp2,d2,a2); \ - XOR(tmp3,d3,a3); XOR(tmp4,d4,a4); \ - ROTATE4_16(d1, d2, d3, d4, tmp1, tmp2, tmp3, tmp4); \ - PLUS(c1,d1); PLUS(c2,d2); \ - PLUS(c3,d3); PLUS(c4,d4); \ - XOR(tmp1,b1,c1); XOR(tmp2,b2,c2); \ - XOR(tmp3,b3,c3); XOR(tmp4,b4,c4); \ - ROTATE4(b1, b2, b3, b4, 12, tmp1, tmp2, tmp3, tmp4) \ - PLUS(a1,b1); PLUS(a2,b2); \ - PLUS(a3,b3); PLUS(a4,b4); \ - XOR(tmp1,d1,a1); XOR(tmp2,d2,a2); \ - XOR(tmp3,d3,a3); XOR(tmp4,d4,a4); \ - ROTATE4_8(d1, d2, d3, d4, tmp1, tmp2, tmp3, tmp4) \ - PLUS(c1,d1); PLUS(c2,d2); \ - PLUS(c3,d3); PLUS(c4,d4); \ - XOR(tmp1,b1,c1); XOR(tmp2,b2,c2); \ - XOR(tmp3,b3,c3); XOR(tmp4,b4,c4); \ - ROTATE4(b1, b2, b3, b4, 7, tmp1, tmp2, tmp3, tmp4) \ - -.align 4 -L(__chacha20_blocks4_data_inc_counter): - .long 0,1,2,3 - -.align 4 -L(__chacha20_blocks4_data_rot8): - .byte 3,0,1,2 - .byte 7,4,5,6 - .byte 11,8,9,10 - .byte 15,12,13,14 - -.hidden __chacha20_neon_blocks4 -ENTRY (__chacha20_neon_blocks4) - /* input: - * x0: input - * x1: dst - * x2: src - * x3: nblks (multiple of 4) - */ - - GET_DATA_POINTER(CTR, L(__chacha20_blocks4_data_rot8)) - add INPUT_CTR, INPUT, #(12*4); - ld1 {ROT8.16b}, [CTR]; - GET_DATA_POINTER(CTR, L(__chacha20_blocks4_data_inc_counter)) - mov INPUT_POS, INPUT; - ld1 {VCTR.16b}, [CTR]; - -L(loop4): - /* Construct counter vectors X12 and X13 */ - - ld1 {X15.16b}, [INPUT_CTR]; - mov ROUND, #20; - ld1 {VTMP1.16b-VTMP3.16b}, [INPUT_POS]; - - dup X12.4s, X15.s[0]; - dup X13.4s, X15.s[1]; - ldr CTR, [INPUT_CTR]; - add X12.4s, X12.4s, VCTR.4s; - dup X0.4s, VTMP1.s[0]; - dup X1.4s, VTMP1.s[1]; - dup X2.4s, VTMP1.s[2]; - dup X3.4s, VTMP1.s[3]; - dup X14.4s, X15.s[2]; - cmhi VTMP0.4s, VCTR.4s, X12.4s; - dup X15.4s, X15.s[3]; - add CTR, CTR, #4; /* Update counter */ - dup X4.4s, VTMP2.s[0]; - dup X5.4s, VTMP2.s[1]; - dup X6.4s, VTMP2.s[2]; - dup X7.4s, VTMP2.s[3]; - sub X13.4s, X13.4s, VTMP0.4s; - dup X8.4s, VTMP3.s[0]; - dup X9.4s, VTMP3.s[1]; - dup X10.4s, VTMP3.s[2]; - dup X11.4s, VTMP3.s[3]; - mov X12_TMP.16b, X12.16b; - mov X13_TMP.16b, X13.16b; - str CTR, [INPUT_CTR]; - -L(round2): - subs ROUND, ROUND, #2 - QUARTERROUND4(X0, X4, X8, X12, X1, X5, X9, X13, - X2, X6, X10, X14, X3, X7, X11, X15, - tmp:=,VTMP0,VTMP1,VTMP2,VTMP3) - QUARTERROUND4(X0, X5, X10, X15, X1, X6, X11, X12, - X2, X7, X8, X13, X3, X4, X9, X14, - tmp:=,VTMP0,VTMP1,VTMP2,VTMP3) - b.ne L(round2); - - ld1 {VTMP0.16b, VTMP1.16b}, [INPUT_POS], #32; - - PLUS(X12, X12_TMP); /* INPUT + 12 * 4 + counter */ - PLUS(X13, X13_TMP); /* INPUT + 13 * 4 + counter */ - - dup VTMP2.4s, VTMP0.s[0]; /* INPUT + 0 * 4 */ - dup VTMP3.4s, VTMP0.s[1]; /* INPUT + 1 * 4 */ - dup X12_TMP.4s, VTMP0.s[2]; /* INPUT + 2 * 4 */ - dup X13_TMP.4s, VTMP0.s[3]; /* INPUT + 3 * 4 */ - PLUS(X0, VTMP2); - PLUS(X1, VTMP3); - PLUS(X2, X12_TMP); - PLUS(X3, X13_TMP); - - dup VTMP2.4s, VTMP1.s[0]; /* INPUT + 4 * 4 */ - dup VTMP3.4s, VTMP1.s[1]; /* INPUT + 5 * 4 */ - dup X12_TMP.4s, VTMP1.s[2]; /* INPUT + 6 * 4 */ - dup X13_TMP.4s, VTMP1.s[3]; /* INPUT + 7 * 4 */ - ld1 {VTMP0.16b, VTMP1.16b}, [INPUT_POS]; - mov INPUT_POS, INPUT; - PLUS(X4, VTMP2); - PLUS(X5, VTMP3); - PLUS(X6, X12_TMP); - PLUS(X7, X13_TMP); - - dup VTMP2.4s, VTMP0.s[0]; /* INPUT + 8 * 4 */ - dup VTMP3.4s, VTMP0.s[1]; /* INPUT + 9 * 4 */ - dup X12_TMP.4s, VTMP0.s[2]; /* INPUT + 10 * 4 */ - dup X13_TMP.4s, VTMP0.s[3]; /* INPUT + 11 * 4 */ - dup VTMP0.4s, VTMP1.s[2]; /* INPUT + 14 * 4 */ - dup VTMP1.4s, VTMP1.s[3]; /* INPUT + 15 * 4 */ - PLUS(X8, VTMP2); - PLUS(X9, VTMP3); - PLUS(X10, X12_TMP); - PLUS(X11, X13_TMP); - PLUS(X14, VTMP0); - PLUS(X15, VTMP1); - - transpose_4x4(X0, X1, X2, X3, VTMP0, VTMP1, VTMP2); - transpose_4x4(X4, X5, X6, X7, VTMP0, VTMP1, VTMP2); - transpose_4x4(X8, X9, X10, X11, VTMP0, VTMP1, VTMP2); - transpose_4x4(X12, X13, X14, X15, VTMP0, VTMP1, VTMP2); - - subs NBLKS, NBLKS, #4; - - st1 {X0.16b,X4.16B,X8.16b, X12.16b}, [DST], #64 - st1 {X1.16b,X5.16b}, [DST], #32; - st1 {X9.16b, X13.16b, X2.16b, X6.16b}, [DST], #64 - st1 {X10.16b,X14.16b}, [DST], #32; - st1 {X3.16b, X7.16b, X11.16b, X15.16b}, [DST], #64; - - b.ne L(loop4); - - ret_spec_stop -END (__chacha20_neon_blocks4) - -#endif diff --git a/sysdeps/aarch64/chacha20_arch.h b/sysdeps/aarch64/chacha20_arch.h deleted file mode 100644 index 37dbb917f1..0000000000 --- a/sysdeps/aarch64/chacha20_arch.h +++ /dev/null @@ -1,40 +0,0 @@ -/* Chacha20 implementation, used on arc4random. - Copyright (C) 2022 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <https://www.gnu.org/licenses/>. */ - -#include <ldsodefs.h> -#include <stdbool.h> - -unsigned int __chacha20_neon_blocks4 (uint32_t *state, uint8_t *dst, - const uint8_t *src, size_t nblks) - attribute_hidden; - -static void -chacha20_crypt (uint32_t *state, uint8_t *dst, const uint8_t *src, - size_t bytes) -{ - _Static_assert (CHACHA20_BUFSIZE % 4 == 0, - "CHACHA20_BUFSIZE not multiple of 4"); - _Static_assert (CHACHA20_BUFSIZE > CHACHA20_BLOCK_SIZE * 4, - "CHACHA20_BUFSIZE <= CHACHA20_BLOCK_SIZE * 4"); -#ifdef __AARCH64EL__ - __chacha20_neon_blocks4 (state, dst, src, - CHACHA20_BUFSIZE / CHACHA20_BLOCK_SIZE); -#else - chacha20_crypt_generic (state, dst, src, bytes); -#endif -} diff --git a/sysdeps/generic/chacha20_arch.h b/sysdeps/generic/chacha20_arch.h deleted file mode 100644 index 1b4559ccbc..0000000000 --- a/sysdeps/generic/chacha20_arch.h +++ /dev/null @@ -1,24 +0,0 @@ -/* Chacha20 implementation, generic interface for encrypt. - Copyright (C) 2022 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <https://www.gnu.org/licenses/>. */ - -static inline void -chacha20_crypt (uint32_t *state, uint8_t *dst, const uint8_t *src, - size_t bytes) -{ - chacha20_crypt_generic (state, dst, src, bytes); -} diff --git a/sysdeps/generic/not-cancel.h b/sysdeps/generic/not-cancel.h index acceb9b67f..b5a42c70d6 100644 --- a/sysdeps/generic/not-cancel.h +++ b/sysdeps/generic/not-cancel.h @@ -20,6 +20,7 @@ # define NOT_CANCEL_H #include <fcntl.h> +#include <poll.h> #include <unistd.h> #include <sys/wait.h> #include <time.h> @@ -50,5 +51,7 @@ __fcntl64 (fd, cmd, __VA_ARGS__) #define __getrandom_nocancel(buf, size, flags) \ __getrandom (buf, size, flags) +#define __poll_infinity_nocancel(fds, nfds) \ + __poll (fds, nfds, -1) #endif /* NOT_CANCEL_H */ diff --git a/sysdeps/generic/tls-internal-struct.h b/sysdeps/generic/tls-internal-struct.h index a91915831b..d76c715a96 100644 --- a/sysdeps/generic/tls-internal-struct.h +++ b/sysdeps/generic/tls-internal-struct.h @@ -23,7 +23,6 @@ struct tls_internal_t { char *strsignal_buf; char *strerror_l_buf; - struct arc4random_state_t *rand_state; }; #endif diff --git a/sysdeps/generic/tls-internal.c b/sysdeps/generic/tls-internal.c index 8a0f37d509..b32b31b5a9 100644 --- a/sysdeps/generic/tls-internal.c +++ b/sysdeps/generic/tls-internal.c @@ -16,7 +16,6 @@ License along with the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ -#include <stdlib/arc4random.h> #include <string.h> #include <tls-internal.h> @@ -27,13 +26,4 @@ __glibc_tls_internal_free (void) { free (__tls_internal.strsignal_buf); free (__tls_internal.strerror_l_buf); - - if (__tls_internal.rand_state != NULL) - { - /* Clear any lingering random state prior so if the thread stack is - cached it won't leak any data. */ - explicit_bzero (__tls_internal.rand_state, - sizeof (*__tls_internal.rand_state)); - free (__tls_internal.rand_state); - } } diff --git a/sysdeps/mach/hurd/_Fork.c b/sysdeps/mach/hurd/_Fork.c index 667068c8cf..e60b86fab1 100644 --- a/sysdeps/mach/hurd/_Fork.c +++ b/sysdeps/mach/hurd/_Fork.c @@ -662,8 +662,6 @@ retry: _hurd_malloc_fork_child (); call_function_static_weak (__malloc_fork_unlock_child); - call_function_static_weak (__arc4random_fork_subprocess); - /* Run things that want to run in the child task to set up. */ RUN_HOOK (_hurd_fork_child_hook, ()); diff --git a/sysdeps/mach/hurd/not-cancel.h b/sysdeps/mach/hurd/not-cancel.h index 9a3a7ed59a..ae58b734e3 100644 --- a/sysdeps/mach/hurd/not-cancel.h +++ b/sysdeps/mach/hurd/not-cancel.h @@ -21,6 +21,7 @@ #include <fcntl.h> #include <unistd.h> +#include <poll.h> #include <sys/wait.h> #include <time.h> #include <sys/uio.h> @@ -77,6 +78,9 @@ __typeof (__fcntl) __fcntl_nocancel; #define __getrandom_nocancel(buf, size, flags) \ __getrandom (buf, size, flags) +#define __poll_infinity_nocancel(fds, nfds) \ + __poll (fds, nfds, -1) + #if IS_IN (libc) hidden_proto (__close_nocancel) hidden_proto (__close_nocancel_nostatus) diff --git a/sysdeps/nptl/_Fork.c b/sysdeps/nptl/_Fork.c index 7dc02569f6..dd568992e2 100644 --- a/sysdeps/nptl/_Fork.c +++ b/sysdeps/nptl/_Fork.c @@ -43,8 +43,6 @@ _Fork (void) self->robust_head.list = &self->robust_head; INTERNAL_SYSCALL_CALL (set_robust_list, &self->robust_head, sizeof (struct robust_list_head)); - - call_function_static_weak (__arc4random_fork_subprocess); } return pid; } diff --git a/sysdeps/powerpc/powerpc64/be/multiarch/Makefile b/sysdeps/powerpc/powerpc64/be/multiarch/Makefile deleted file mode 100644 index 8c75165f7f..0000000000 --- a/sysdeps/powerpc/powerpc64/be/multiarch/Makefile +++ /dev/null @@ -1,4 +0,0 @@ -ifeq ($(subdir),stdlib) -sysdep_routines += chacha20-ppc -CFLAGS-chacha20-ppc.c += -mcpu=power8 -endif diff --git a/sysdeps/powerpc/powerpc64/be/multiarch/chacha20-ppc.c b/sysdeps/powerpc/powerpc64/be/multiarch/chacha20-ppc.c deleted file mode 100644 index cf9e735326..0000000000 --- a/sysdeps/powerpc/powerpc64/be/multiarch/chacha20-ppc.c +++ /dev/null @@ -1 +0,0 @@ -#include <sysdeps/powerpc/powerpc64/power8/chacha20-ppc.c> diff --git a/sysdeps/powerpc/powerpc64/be/multiarch/chacha20_arch.h b/sysdeps/powerpc/powerpc64/be/multiarch/chacha20_arch.h deleted file mode 100644 index 08494dc045..0000000000 --- a/sysdeps/powerpc/powerpc64/be/multiarch/chacha20_arch.h +++ /dev/null @@ -1,42 +0,0 @@ -/* PowerPC optimization for ChaCha20. - Copyright (C) 2022 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <https://www.gnu.org/licenses/>. */ - -#include <stdbool.h> -#include <ldsodefs.h> - -unsigned int __chacha20_power8_blocks4 (uint32_t *state, uint8_t *dst, - const uint8_t *src, size_t nblks) - attribute_hidden; - -static void -chacha20_crypt (uint32_t *state, uint8_t *dst, - const uint8_t *src, size_t bytes) -{ - _Static_assert (CHACHA20_BUFSIZE % 4 == 0, - "CHACHA20_BUFSIZE not multiple of 4"); - _Static_assert (CHACHA20_BUFSIZE >= CHACHA20_BLOCK_SIZE * 4, - "CHACHA20_BUFSIZE < CHACHA20_BLOCK_SIZE * 4"); - - unsigned long int hwcap = GLRO(dl_hwcap); - unsigned long int hwcap2 = GLRO(dl_hwcap2); - if (hwcap2 & PPC_FEATURE2_ARCH_2_07 && hwcap & PPC_FEATURE_HAS_ALTIVEC) - __chacha20_power8_blocks4 (state, dst, src, - CHACHA20_BUFSIZE / CHACHA20_BLOCK_SIZE); - else - chacha20_crypt_generic (state, dst, src, bytes); -} diff --git a/sysdeps/powerpc/powerpc64/power8/Makefile b/sysdeps/powerpc/powerpc64/power8/Makefile index abb0aa3f11..71a59529f3 100644 --- a/sysdeps/powerpc/powerpc64/power8/Makefile +++ b/sysdeps/powerpc/powerpc64/power8/Makefile @@ -1,8 +1,3 @@ ifeq ($(subdir),string) sysdep_routines += strcasestr-ppc64 endif - -ifeq ($(subdir),stdlib) -sysdep_routines += chacha20-ppc -CFLAGS-chacha20-ppc.c += -mcpu=power8 -endif diff --git a/sysdeps/powerpc/powerpc64/power8/chacha20-ppc.c b/sysdeps/powerpc/powerpc64/power8/chacha20-ppc.c deleted file mode 100644 index 0bbdcb9363..0000000000 --- a/sysdeps/powerpc/powerpc64/power8/chacha20-ppc.c +++ /dev/null @@ -1,256 +0,0 @@ -/* Optimized PowerPC implementation of ChaCha20 cipher. - Copyright (C) 2022 Free Software Foundation, Inc. - - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <https://www.gnu.org/licenses/>. */ - -/* chacha20-ppc.c - PowerPC vector implementation of ChaCha20 - Copyright (C) 2019 Jussi Kivilinna <jussi.kivilinna@iki.fi> - - This file is part of Libgcrypt. - - Libgcrypt is free software; you can redistribute it and/or modify - it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of - the License, or (at your option) any later version. - - Libgcrypt is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with this program; if not, see <https://www.gnu.org/licenses/>. - */ - -#include <altivec.h> -#include <endian.h> -#include <stddef.h> -#include <stdint.h> -#include <sys/cdefs.h> - -typedef vector unsigned char vector16x_u8; -typedef vector unsigned int vector4x_u32; -typedef vector unsigned long long vector2x_u64; - -#if __BYTE_ORDER == __BIG_ENDIAN -static const vector16x_u8 le_bswap_const = - { 3, 2, 1, 0, 7, 6, 5, 4, 11, 10, 9, 8, 15, 14, 13, 12 }; -#endif - -static inline vector4x_u32 -vec_rol_elems (vector4x_u32 v, unsigned int idx) -{ -#if __BYTE_ORDER != __BIG_ENDIAN - return vec_sld (v, v, (16 - (4 * idx)) & 15); -#else - return vec_sld (v, v, (4 * idx) & 15); -#endif -} - -static inline vector4x_u32 -vec_load_le (unsigned long offset, const unsigned char *ptr) -{ - vector4x_u32 vec; - vec = vec_vsx_ld (offset, (const uint32_t *)ptr); -#if __BYTE_ORDER == __BIG_ENDIAN - vec = (vector4x_u32) vec_perm ((vector16x_u8)vec, (vector16x_u8)vec, - le_bswap_const); -#endif - return vec; -} - -static inline void -vec_store_le (vector4x_u32 vec, unsigned long offset, unsigned char *ptr) -{ -#if __BYTE_ORDER == __BIG_ENDIAN - vec = (vector4x_u32)vec_perm((vector16x_u8)vec, (vector16x_u8)vec, - le_bswap_const); -#endif - vec_vsx_st (vec, offset, (uint32_t *)ptr); -} - - -static inline vector4x_u32 -vec_add_ctr_u64 (vector4x_u32 v, vector4x_u32 a) -{ -#if __BYTE_ORDER == __BIG_ENDIAN - static const vector16x_u8 swap32 = - { 4, 5, 6, 7, 0, 1, 2, 3, 12, 13, 14, 15, 8, 9, 10, 11 }; - vector2x_u64 vec, add, sum; - - vec = (vector2x_u64)vec_perm ((vector16x_u8)v, (vector16x_u8)v, swap32); - add = (vector2x_u64)vec_perm ((vector16x_u8)a, (vector16x_u8)a, swap32); - sum = vec + add; - return (vector4x_u32)vec_perm ((vector16x_u8)sum, (vector16x_u8)sum, swap32); -#else - return (vector4x_u32)((vector2x_u64)(v) + (vector2x_u64)(a)); -#endif -} - -/********************************************************************** - 4-way chacha20 - **********************************************************************/ - -#define ROTATE(v1,rolv) \ - __asm__ ("vrlw %0,%1,%2\n\t" : "=v" (v1) : "v" (v1), "v" (rolv)) - -#define PLUS(ds,s) \ - ((ds) += (s)) - -#define XOR(ds,s) \ - ((ds) ^= (s)) - -#define ADD_U64(v,a) \ - (v = vec_add_ctr_u64(v, a)) - -/* 4x4 32-bit integer matrix transpose */ -#define transpose_4x4(x0, x1, x2, x3) ({ \ - vector4x_u32 t1 = vec_mergeh(x0, x2); \ - vector4x_u32 t2 = vec_mergel(x0, x2); \ - vector4x_u32 t3 = vec_mergeh(x1, x3); \ - x3 = vec_mergel(x1, x3); \ - x0 = vec_mergeh(t1, t3); \ - x1 = vec_mergel(t1, t3); \ - x2 = vec_mergeh(t2, x3); \ - x3 = vec_mergel(t2, x3); \ - }) - -#define QUARTERROUND2(a1,b1,c1,d1,a2,b2,c2,d2) \ - PLUS(a1,b1); PLUS(a2,b2); XOR(d1,a1); XOR(d2,a2); \ - ROTATE(d1, rotate_16); ROTATE(d2, rotate_16); \ - PLUS(c1,d1); PLUS(c2,d2); XOR(b1,c1); XOR(b2,c2); \ - ROTATE(b1, rotate_12); ROTATE(b2, rotate_12); \ - PLUS(a1,b1); PLUS(a2,b2); XOR(d1,a1); XOR(d2,a2); \ - ROTATE(d1, rotate_8); ROTATE(d2, rotate_8); \ - PLUS(c1,d1); PLUS(c2,d2); XOR(b1,c1); XOR(b2,c2); \ - ROTATE(b1, rotate_7); ROTATE(b2, rotate_7); - -unsigned int attribute_hidden -__chacha20_power8_blocks4 (uint32_t *state, uint8_t *dst, const uint8_t *src, - size_t nblks) -{ - vector4x_u32 counters_0123 = { 0, 1, 2, 3 }; - vector4x_u32 counter_4 = { 4, 0, 0, 0 }; - vector4x_u32 rotate_16 = { 16, 16, 16, 16 }; - vector4x_u32 rotate_12 = { 12, 12, 12, 12 }; - vector4x_u32 rotate_8 = { 8, 8, 8, 8 }; - vector4x_u32 rotate_7 = { 7, 7, 7, 7 }; - vector4x_u32 state0, state1, state2, state3; - vector4x_u32 v0, v1, v2, v3, v4, v5, v6, v7; - vector4x_u32 v8, v9, v10, v11, v12, v13, v14, v15; - vector4x_u32 tmp; - int i; - - /* Force preload of constants to vector registers. */ - __asm__ ("": "+v" (counters_0123) :: "memory"); - __asm__ ("": "+v" (counter_4) :: "memory"); - __asm__ ("": "+v" (rotate_16) :: "memory"); - __asm__ ("": "+v" (rotate_12) :: "memory"); - __asm__ ("": "+v" (rotate_8) :: "memory"); - __asm__ ("": "+v" (rotate_7) :: "memory"); - - state0 = vec_vsx_ld (0 * 16, state); - state1 = vec_vsx_ld (1 * 16, state); - state2 = vec_vsx_ld (2 * 16, state); - state3 = vec_vsx_ld (3 * 16, state); - - do - { - v0 = vec_splat (state0, 0); - v1 = vec_splat (state0, 1); - v2 = vec_splat (state0, 2); - v3 = vec_splat (state0, 3); - v4 = vec_splat (state1, 0); - v5 = vec_splat (state1, 1); - v6 = vec_splat (state1, 2); - v7 = vec_splat (state1, 3); - v8 = vec_splat (state2, 0); - v9 = vec_splat (state2, 1); - v10 = vec_splat (state2, 2); - v11 = vec_splat (state2, 3); - v12 = vec_splat (state3, 0); - v13 = vec_splat (state3, 1); - v14 = vec_splat (state3, 2); - v15 = vec_splat (state3, 3); - - v12 += counters_0123; - v13 -= vec_cmplt (v12, counters_0123); - - for (i = 20; i > 0; i -= 2) - { - QUARTERROUND2 (v0, v4, v8, v12, v1, v5, v9, v13) - QUARTERROUND2 (v2, v6, v10, v14, v3, v7, v11, v15) - QUARTERROUND2 (v0, v5, v10, v15, v1, v6, v11, v12) - QUARTERROUND2 (v2, v7, v8, v13, v3, v4, v9, v14) - } - - v0 += vec_splat (state0, 0); - v1 += vec_splat (state0, 1); - v2 += vec_splat (state0, 2); - v3 += vec_splat (state0, 3); - v4 += vec_splat (state1, 0); - v5 += vec_splat (state1, 1); - v6 += vec_splat (state1, 2); - v7 += vec_splat (state1, 3); - v8 += vec_splat (state2, 0); - v9 += vec_splat (state2, 1); - v10 += vec_splat (state2, 2); - v11 += vec_splat (state2, 3); - tmp = vec_splat( state3, 0); - tmp += counters_0123; - v12 += tmp; - v13 += vec_splat (state3, 1) - vec_cmplt (tmp, counters_0123); - v14 += vec_splat (state3, 2); - v15 += vec_splat (state3, 3); - ADD_U64 (state3, counter_4); - - transpose_4x4 (v0, v1, v2, v3); - transpose_4x4 (v4, v5, v6, v7); - transpose_4x4 (v8, v9, v10, v11); - transpose_4x4 (v12, v13, v14, v15); - - vec_store_le (v0, (64 * 0 + 16 * 0), dst); - vec_store_le (v1, (64 * 1 + 16 * 0), dst); - vec_store_le (v2, (64 * 2 + 16 * 0), dst); - vec_store_le (v3, (64 * 3 + 16 * 0), dst); - - vec_store_le (v4, (64 * 0 + 16 * 1), dst); - vec_store_le (v5, (64 * 1 + 16 * 1), dst); - vec_store_le (v6, (64 * 2 + 16 * 1), dst); - vec_store_le (v7, (64 * 3 + 16 * 1), dst); - - vec_store_le (v8, (64 * 0 + 16 * 2), dst); - vec_store_le (v9, (64 * 1 + 16 * 2), dst); - vec_store_le (v10, (64 * 2 + 16 * 2), dst); - vec_store_le (v11, (64 * 3 + 16 * 2), dst); - - vec_store_le (v12, (64 * 0 + 16 * 3), dst); - vec_store_le (v13, (64 * 1 + 16 * 3), dst); - vec_store_le (v14, (64 * 2 + 16 * 3), dst); - vec_store_le (v15, (64 * 3 + 16 * 3), dst); - - src += 4*64; - dst += 4*64; - - nblks -= 4; - } - while (nblks); - - vec_vsx_st (state3, 3 * 16, state); - - return 0; -} diff --git a/sysdeps/powerpc/powerpc64/power8/chacha20_arch.h b/sysdeps/powerpc/powerpc64/power8/chacha20_arch.h deleted file mode 100644 index ded06762b6..0000000000 --- a/sysdeps/powerpc/powerpc64/power8/chacha20_arch.h +++ /dev/null @@ -1,37 +0,0 @@ -/* PowerPC optimization for ChaCha20. - Copyright (C) 2022 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <https://www.gnu.org/licenses/>. */ - -#include <stdbool.h> -#include <ldsodefs.h> - -unsigned int __chacha20_power8_blocks4 (uint32_t *state, uint8_t *dst, - const uint8_t *src, size_t nblks) - attribute_hidden; - -static void -chacha20_crypt (uint32_t *state, uint8_t *dst, - const uint8_t *src, size_t bytes) -{ - _Static_assert (CHACHA20_BUFSIZE % 4 == 0, - "CHACHA20_BUFSIZE not multiple of 4"); - _Static_assert (CHACHA20_BUFSIZE >= CHACHA20_BLOCK_SIZE * 4, - "CHACHA20_BUFSIZE < CHACHA20_BLOCK_SIZE * 4"); - - __chacha20_power8_blocks4 (state, dst, src, - CHACHA20_BUFSIZE / CHACHA20_BLOCK_SIZE); -} diff --git a/sysdeps/s390/s390-64/Makefile b/sysdeps/s390/s390-64/Makefile index 96c110f490..66ed844e68 100644 --- a/sysdeps/s390/s390-64/Makefile +++ b/sysdeps/s390/s390-64/Makefile @@ -67,9 +67,3 @@ tests-container += tst-glibc-hwcaps-cache endif endif # $(subdir) == elf - -ifeq ($(subdir),stdlib) -sysdep_routines += \ - chacha20-s390x \ - # sysdep_routines -endif diff --git a/sysdeps/s390/s390-64/chacha20-s390x.S b/sysdeps/s390/s390-64/chacha20-s390x.S deleted file mode 100644 index e38504d370..0000000000 --- a/sysdeps/s390/s390-64/chacha20-s390x.S +++ /dev/null @@ -1,573 +0,0 @@ -/* Optimized s390x implementation of ChaCha20 cipher. - Copyright (C) 2022 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <https://www.gnu.org/licenses/>. */ - -/* chacha20-s390x.S - zSeries implementation of ChaCha20 cipher - - Copyright (C) 2020 Jussi Kivilinna <jussi.kivilinna@iki.fi> - - This file is part of Libgcrypt. - - Libgcrypt is free software; you can redistribute it and/or modify - it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of - the License, or (at your option) any later version. - - Libgcrypt is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with this program; if not, see <https://www.gnu.org/licenses/>. - */ - -#include <sysdep.h> - -#ifdef HAVE_S390_VX_ASM_SUPPORT - -/* CFA expressions are used for pointing CFA and registers to - * SP relative offsets. */ -# define DW_REGNO_SP 15 - -/* Fixed length encoding used for integers for now. */ -# define DW_SLEB128_7BIT(value) \ - 0x00|((value) & 0x7f) -# define DW_SLEB128_28BIT(value) \ - 0x80|((value)&0x7f), \ - 0x80|(((value)>>7)&0x7f), \ - 0x80|(((value)>>14)&0x7f), \ - 0x00|(((value)>>21)&0x7f) - -# define cfi_cfa_on_stack(rsp_offs,cfa_depth) \ - .cfi_escape \ - 0x0f, /* DW_CFA_def_cfa_expression */ \ - DW_SLEB128_7BIT(11), /* length */ \ - 0x7f, /* DW_OP_breg15, rsp + constant */ \ - DW_SLEB128_28BIT(rsp_offs), \ - 0x06, /* DW_OP_deref */ \ - 0x23, /* DW_OP_plus_constu */ \ - DW_SLEB128_28BIT((cfa_depth)+160) - -.machine "z13+vx" -.text - -.balign 16 -.Lconsts: -.Lwordswap: - .byte 12, 13, 14, 15, 8, 9, 10, 11, 4, 5, 6, 7, 0, 1, 2, 3 -.Lbswap128: - .byte 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0 -.Lbswap32: - .byte 3, 2, 1, 0, 7, 6, 5, 4, 11, 10, 9, 8, 15, 14, 13, 12 -.Lone: - .long 0, 0, 0, 1 -.Ladd_counter_0123: - .long 0, 1, 2, 3 -.Ladd_counter_4567: - .long 4, 5, 6, 7 - -/* register macros */ -#define INPUT %r2 -#define DST %r3 -#define SRC %r4 -#define NBLKS %r0 -#define ROUND %r1 - -/* stack structure */ - -#define STACK_FRAME_STD (8 * 16 + 8 * 4) -#define STACK_FRAME_F8_F15 (8 * 8) -#define STACK_FRAME_Y0_Y15 (16 * 16) -#define STACK_FRAME_CTR (4 * 16) -#define STACK_FRAME_PARAMS (6 * 8) - -#define STACK_MAX (STACK_FRAME_STD + STACK_FRAME_F8_F15 + \ - STACK_FRAME_Y0_Y15 + STACK_FRAME_CTR + \ - STACK_FRAME_PARAMS) - -#define STACK_F8 (STACK_MAX - STACK_FRAME_F8_F15) -#define STACK_F9 (STACK_F8 + 8) -#define STACK_F10 (STACK_F9 + 8) -#define STACK_F11 (STACK_F10 + 8) -#define STACK_F12 (STACK_F11 + 8) -#define STACK_F13 (STACK_F12 + 8) -#define STACK_F14 (STACK_F13 + 8) -#define STACK_F15 (STACK_F14 + 8) -#define STACK_Y0_Y15 (STACK_F8 - STACK_FRAME_Y0_Y15) -#define STACK_CTR (STACK_Y0_Y15 - STACK_FRAME_CTR) -#define STACK_INPUT (STACK_CTR - STACK_FRAME_PARAMS) -#define STACK_DST (STACK_INPUT + 8) -#define STACK_SRC (STACK_DST + 8) -#define STACK_NBLKS (STACK_SRC + 8) -#define STACK_POCTX (STACK_NBLKS + 8) -#define STACK_POSRC (STACK_POCTX + 8) - -#define STACK_G0_H3 STACK_Y0_Y15 - -/* vector registers */ -#define A0 %v0 -#define A1 %v1 -#define A2 %v2 -#define A3 %v3 - -#define B0 %v4 -#define B1 %v5 -#define B2 %v6 -#define B3 %v7 - -#define C0 %v8 -#define C1 %v9 -#define C2 %v10 -#define C3 %v11 - -#define D0 %v12 -#define D1 %v13 -#define D2 %v14 -#define D3 %v15 - -#define E0 %v16 -#define E1 %v17 -#define E2 %v18 -#define E3 %v19 - -#define F0 %v20 -#define F1 %v21 -#define F2 %v22 -#define F3 %v23 - -#define G0 %v24 -#define G1 %v25 -#define G2 %v26 -#define G3 %v27 - -#define H0 %v28 -#define H1 %v29 -#define H2 %v30 -#define H3 %v31 - -#define IO0 E0 -#define IO1 E1 -#define IO2 E2 -#define IO3 E3 -#define IO4 F0 -#define IO5 F1 -#define IO6 F2 -#define IO7 F3 - -#define S0 G0 -#define S1 G1 -#define S2 G2 -#define S3 G3 - -#define TMP0 H0 -#define TMP1 H1 -#define TMP2 H2 -#define TMP3 H3 - -#define X0 A0 -#define X1 A1 -#define X2 A2 -#define X3 A3 -#define X4 B0 -#define X5 B1 -#define X6 B2 -#define X7 B3 -#define X8 C0 -#define X9 C1 -#define X10 C2 -#define X11 C3 -#define X12 D0 -#define X13 D1 -#define X14 D2 -#define X15 D3 - -#define Y0 E0 -#define Y1 E1 -#define Y2 E2 -#define Y3 E3 -#define Y4 F0 -#define Y5 F1 -#define Y6 F2 -#define Y7 F3 -#define Y8 G0 -#define Y9 G1 -#define Y10 G2 -#define Y11 G3 -#define Y12 H0 -#define Y13 H1 -#define Y14 H2 -#define Y15 H3 - -/********************************************************************** - helper macros - **********************************************************************/ - -#define _ /*_*/ - -#define START_STACK(last_r) \ - lgr %r0, %r15; \ - lghi %r1, ~15; \ - stmg %r6, last_r, 6 * 8(%r15); \ - aghi %r0, -STACK_MAX; \ - ngr %r0, %r1; \ - lgr %r1, %r15; \ - cfi_def_cfa_register(1); \ - lgr %r15, %r0; \ - stg %r1, 0(%r15); \ - cfi_cfa_on_stack(0, 0); \ - std %f8, STACK_F8(%r15); \ - std %f9, STACK_F9(%r15); \ - std %f10, STACK_F10(%r15); \ - std %f11, STACK_F11(%r15); \ - std %f12, STACK_F12(%r15); \ - std %f13, STACK_F13(%r15); \ - std %f14, STACK_F14(%r15); \ - std %f15, STACK_F15(%r15); - -#define END_STACK(last_r) \ - lg %r1, 0(%r15); \ - ld %f8, STACK_F8(%r15); \ - ld %f9, STACK_F9(%r15); \ - ld %f10, STACK_F10(%r15); \ - ld %f11, STACK_F11(%r15); \ - ld %f12, STACK_F12(%r15); \ - ld %f13, STACK_F13(%r15); \ - ld %f14, STACK_F14(%r15); \ - ld %f15, STACK_F15(%r15); \ - lmg %r6, last_r, 6 * 8(%r1); \ - lgr %r15, %r1; \ - cfi_def_cfa_register(DW_REGNO_SP); - -#define PLUS(dst,src) \ - vaf dst, dst, src; - -#define XOR(dst,src) \ - vx dst, dst, src; - -#define ROTATE(v1,c) \ - verllf v1, v1, (c)(0); - -#define WORD_ROTATE(v1,s) \ - vsldb v1, v1, v1, ((s) * 4); - -#define DST_8(OPER, I, J) \ - OPER(A##I, J); OPER(B##I, J); OPER(C##I, J); OPER(D##I, J); \ - OPER(E##I, J); OPER(F##I, J); OPER(G##I, J); OPER(H##I, J); - -/********************************************************************** - round macros - **********************************************************************/ - -/********************************************************************** - 8-way chacha20 ("vertical") - **********************************************************************/ - -#define QUARTERROUND4_V8_POLY(x0,x1,x2,x3,x4,x5,x6,x7,\ - x8,x9,x10,x11,x12,x13,x14,x15,\ - y0,y1,y2,y3,y4,y5,y6,y7,\ - y8,y9,y10,y11,y12,y13,y14,y15,\ - op1,op2,op3,op4,op5,op6,op7,op8,\ - op9,op10,op11,op12) \ - op1; \ - PLUS(x0, x1); PLUS(x4, x5); \ - PLUS(x8, x9); PLUS(x12, x13); \ - PLUS(y0, y1); PLUS(y4, y5); \ - PLUS(y8, y9); PLUS(y12, y13); \ - op2; \ - XOR(x3, x0); XOR(x7, x4); \ - XOR(x11, x8); XOR(x15, x12); \ - XOR(y3, y0); XOR(y7, y4); \ - XOR(y11, y8); XOR(y15, y12); \ - op3; \ - ROTATE(x3, 16); ROTATE(x7, 16); \ - ROTATE(x11, 16); ROTATE(x15, 16); \ - ROTATE(y3, 16); ROTATE(y7, 16); \ - ROTATE(y11, 16); ROTATE(y15, 16); \ - op4; \ - PLUS(x2, x3); PLUS(x6, x7); \ - PLUS(x10, x11); PLUS(x14, x15); \ - PLUS(y2, y3); PLUS(y6, y7); \ - PLUS(y10, y11); PLUS(y14, y15); \ - op5; \ - XOR(x1, x2); XOR(x5, x6); \ - XOR(x9, x10); XOR(x13, x14); \ - XOR(y1, y2); XOR(y5, y6); \ - XOR(y9, y10); XOR(y13, y14); \ - op6; \ - ROTATE(x1,12); ROTATE(x5,12); \ - ROTATE(x9,12); ROTATE(x13,12); \ - ROTATE(y1,12); ROTATE(y5,12); \ - ROTATE(y9,12); ROTATE(y13,12); \ - op7; \ - PLUS(x0, x1); PLUS(x4, x5); \ - PLUS(x8, x9); PLUS(x12, x13); \ - PLUS(y0, y1); PLUS(y4, y5); \ - PLUS(y8, y9); PLUS(y12, y13); \ - op8; \ - XOR(x3, x0); XOR(x7, x4); \ - XOR(x11, x8); XOR(x15, x12); \ - XOR(y3, y0); XOR(y7, y4); \ - XOR(y11, y8); XOR(y15, y12); \ - op9; \ - ROTATE(x3,8); ROTATE(x7,8); \ - ROTATE(x11,8); ROTATE(x15,8); \ - ROTATE(y3,8); ROTATE(y7,8); \ - ROTATE(y11,8); ROTATE(y15,8); \ - op10; \ - PLUS(x2, x3); PLUS(x6, x7); \ - PLUS(x10, x11); PLUS(x14, x15); \ - PLUS(y2, y3); PLUS(y6, y7); \ - PLUS(y10, y11); PLUS(y14, y15); \ - op11; \ - XOR(x1, x2); XOR(x5, x6); \ - XOR(x9, x10); XOR(x13, x14); \ - XOR(y1, y2); XOR(y5, y6); \ - XOR(y9, y10); XOR(y13, y14); \ - op12; \ - ROTATE(x1,7); ROTATE(x5,7); \ - ROTATE(x9,7); ROTATE(x13,7); \ - ROTATE(y1,7); ROTATE(y5,7); \ - ROTATE(y9,7); ROTATE(y13,7); - -#define QUARTERROUND4_V8(x0,x1,x2,x3,x4,x5,x6,x7,x8,x9,x10,x11,x12,x13,x14,x15,\ - y0,y1,y2,y3,y4,y5,y6,y7,y8,y9,y10,y11,y12,y13,y14,y15) \ - QUARTERROUND4_V8_POLY(x0,x1,x2,x3,x4,x5,x6,x7,\ - x8,x9,x10,x11,x12,x13,x14,x15,\ - y0,y1,y2,y3,y4,y5,y6,y7,\ - y8,y9,y10,y11,y12,y13,y14,y15,\ - ,,,,,,,,,,,) - -#define TRANSPOSE_4X4_2(v0,v1,v2,v3,va,vb,vc,vd,tmp0,tmp1,tmp2,tmpa,tmpb,tmpc) \ - vmrhf tmp0, v0, v1; \ - vmrhf tmp1, v2, v3; \ - vmrlf tmp2, v0, v1; \ - vmrlf v3, v2, v3; \ - vmrhf tmpa, va, vb; \ - vmrhf tmpb, vc, vd; \ - vmrlf tmpc, va, vb; \ - vmrlf vd, vc, vd; \ - vpdi v0, tmp0, tmp1, 0; \ - vpdi v1, tmp0, tmp1, 5; \ - vpdi v2, tmp2, v3, 0; \ - vpdi v3, tmp2, v3, 5; \ - vpdi va, tmpa, tmpb, 0; \ - vpdi vb, tmpa, tmpb, 5; \ - vpdi vc, tmpc, vd, 0; \ - vpdi vd, tmpc, vd, 5; - -.balign 8 -.globl __chacha20_s390x_vx_blocks8 -ENTRY (__chacha20_s390x_vx_blocks8) - /* input: - * %r2: input - * %r3: dst - * %r4: src - * %r5: nblks (multiple of 8) - */ - - START_STACK(%r8); - lgr NBLKS, %r5; - - larl %r7, .Lconsts; - - /* Load counter. */ - lg %r8, (12 * 4)(INPUT); - rllg %r8, %r8, 32; - -.balign 4 - /* Process eight chacha20 blocks per loop. */ -.Lloop8: - vlm Y0, Y3, 0(INPUT); - - slgfi NBLKS, 8; - lghi ROUND, (20 / 2); - - /* Construct counter vectors X12/X13 & Y12/Y13. */ - vl X4, (.Ladd_counter_0123 - .Lconsts)(%r7); - vl Y4, (.Ladd_counter_4567 - .Lconsts)(%r7); - vrepf Y12, Y3, 0; - vrepf Y13, Y3, 1; - vaccf X5, Y12, X4; - vaccf Y5, Y12, Y4; - vaf X12, Y12, X4; - vaf Y12, Y12, Y4; - vaf X13, Y13, X5; - vaf Y13, Y13, Y5; - - vrepf X0, Y0, 0; - vrepf X1, Y0, 1; - vrepf X2, Y0, 2; - vrepf X3, Y0, 3; - vrepf X4, Y1, 0; - vrepf X5, Y1, 1; - vrepf X6, Y1, 2; - vrepf X7, Y1, 3; - vrepf X8, Y2, 0; - vrepf X9, Y2, 1; - vrepf X10, Y2, 2; - vrepf X11, Y2, 3; - vrepf X14, Y3, 2; - vrepf X15, Y3, 3; - - /* Store counters for blocks 0-7. */ - vstm X12, X13, (STACK_CTR + 0 * 16)(%r15); - vstm Y12, Y13, (STACK_CTR + 2 * 16)(%r15); - - vlr Y0, X0; - vlr Y1, X1; - vlr Y2, X2; - vlr Y3, X3; - vlr Y4, X4; - vlr Y5, X5; - vlr Y6, X6; - vlr Y7, X7; - vlr Y8, X8; - vlr Y9, X9; - vlr Y10, X10; - vlr Y11, X11; - vlr Y14, X14; - vlr Y15, X15; - - /* Update and store counter. */ - agfi %r8, 8; - rllg %r5, %r8, 32; - stg %r5, (12 * 4)(INPUT); - -.balign 4 -.Lround2_8: - QUARTERROUND4_V8(X0, X4, X8, X12, X1, X5, X9, X13, - X2, X6, X10, X14, X3, X7, X11, X15, - Y0, Y4, Y8, Y12, Y1, Y5, Y9, Y13, - Y2, Y6, Y10, Y14, Y3, Y7, Y11, Y15); - QUARTERROUND4_V8(X0, X5, X10, X15, X1, X6, X11, X12, - X2, X7, X8, X13, X3, X4, X9, X14, - Y0, Y5, Y10, Y15, Y1, Y6, Y11, Y12, - Y2, Y7, Y8, Y13, Y3, Y4, Y9, Y14); - brctg ROUND, .Lround2_8; - - /* Store blocks 4-7. */ - vstm Y0, Y15, STACK_Y0_Y15(%r15); - - /* Load counters for blocks 0-3. */ - vlm Y0, Y1, (STACK_CTR + 0 * 16)(%r15); - - lghi ROUND, 1; - j .Lfirst_output_4blks_8; - -.balign 4 -.Lsecond_output_4blks_8: - /* Load blocks 4-7. */ - vlm X0, X15, STACK_Y0_Y15(%r15); - - /* Load counters for blocks 4-7. */ - vlm Y0, Y1, (STACK_CTR + 2 * 16)(%r15); - - lghi ROUND, 0; - -.balign 4 - /* Output four chacha20 blocks per loop. */ -.Lfirst_output_4blks_8: - vlm Y12, Y15, 0(INPUT); - PLUS(X12, Y0); - PLUS(X13, Y1); - vrepf Y0, Y12, 0; - vrepf Y1, Y12, 1; - vrepf Y2, Y12, 2; - vrepf Y3, Y12, 3; - vrepf Y4, Y13, 0; - vrepf Y5, Y13, 1; - vrepf Y6, Y13, 2; - vrepf Y7, Y13, 3; - vrepf Y8, Y14, 0; - vrepf Y9, Y14, 1; - vrepf Y10, Y14, 2; - vrepf Y11, Y14, 3; - vrepf Y14, Y15, 2; - vrepf Y15, Y15, 3; - PLUS(X0, Y0); - PLUS(X1, Y1); - PLUS(X2, Y2); - PLUS(X3, Y3); - PLUS(X4, Y4); - PLUS(X5, Y5); - PLUS(X6, Y6); - PLUS(X7, Y7); - PLUS(X8, Y8); - PLUS(X9, Y9); - PLUS(X10, Y10); - PLUS(X11, Y11); - PLUS(X14, Y14); - PLUS(X15, Y15); - - vl Y15, (.Lbswap32 - .Lconsts)(%r7); - TRANSPOSE_4X4_2(X0, X1, X2, X3, X4, X5, X6, X7, - Y9, Y10, Y11, Y12, Y13, Y14); - TRANSPOSE_4X4_2(X8, X9, X10, X11, X12, X13, X14, X15, - Y9, Y10, Y11, Y12, Y13, Y14); - - vlm Y0, Y14, 0(SRC); - vperm X0, X0, X0, Y15; - vperm X1, X1, X1, Y15; - vperm X2, X2, X2, Y15; - vperm X3, X3, X3, Y15; - vperm X4, X4, X4, Y15; - vperm X5, X5, X5, Y15; - vperm X6, X6, X6, Y15; - vperm X7, X7, X7, Y15; - vperm X8, X8, X8, Y15; - vperm X9, X9, X9, Y15; - vperm X10, X10, X10, Y15; - vperm X11, X11, X11, Y15; - vperm X12, X12, X12, Y15; - vperm X13, X13, X13, Y15; - vperm X14, X14, X14, Y15; - vperm X15, X15, X15, Y15; - vl Y15, (15 * 16)(SRC); - - XOR(Y0, X0); - XOR(Y1, X4); - XOR(Y2, X8); - XOR(Y3, X12); - XOR(Y4, X1); - XOR(Y5, X5); - XOR(Y6, X9); - XOR(Y7, X13); - XOR(Y8, X2); - XOR(Y9, X6); - XOR(Y10, X10); - XOR(Y11, X14); - XOR(Y12, X3); - XOR(Y13, X7); - XOR(Y14, X11); - XOR(Y15, X15); - vstm Y0, Y15, 0(DST); - - aghi SRC, 256; - aghi DST, 256; - - clgije ROUND, 1, .Lsecond_output_4blks_8; - - clgijhe NBLKS, 8, .Lloop8; - - - END_STACK(%r8); - xgr %r2, %r2; - br %r14; -END (__chacha20_s390x_vx_blocks8) - -#endif /* HAVE_S390_VX_ASM_SUPPORT */ diff --git a/sysdeps/s390/s390-64/chacha20_arch.h b/sysdeps/s390/s390-64/chacha20_arch.h deleted file mode 100644 index 0c6abf77e8..0000000000 --- a/sysdeps/s390/s390-64/chacha20_arch.h +++ /dev/null @@ -1,45 +0,0 @@ -/* s390x optimization for ChaCha20.VE_S390_VX_ASM_SUPPORT - Copyright (C) 2022 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <https://www.gnu.org/licenses/>. */ - -#include <stdbool.h> -#include <ldsodefs.h> -#include <sys/auxv.h> - -unsigned int __chacha20_s390x_vx_blocks8 (uint32_t *state, uint8_t *dst, - const uint8_t *src, size_t nblks) - attribute_hidden; - -static inline void -chacha20_crypt (uint32_t *state, uint8_t *dst, const uint8_t *src, - size_t bytes) -{ -#ifdef HAVE_S390_VX_ASM_SUPPORT - _Static_assert (CHACHA20_BUFSIZE % 8 == 0, - "CHACHA20_BUFSIZE not multiple of 8"); - _Static_assert (CHACHA20_BUFSIZE >= CHACHA20_BLOCK_SIZE * 8, - "CHACHA20_BUFSIZE < CHACHA20_BLOCK_SIZE * 8"); - - if (GLRO(dl_hwcap) & HWCAP_S390_VX) - { - __chacha20_s390x_vx_blocks8 (state, dst, src, - CHACHA20_BUFSIZE / CHACHA20_BLOCK_SIZE); - return; - } -#endif - chacha20_crypt_generic (state, dst, src, bytes); -} diff --git a/sysdeps/unix/sysv/linux/not-cancel.h b/sysdeps/unix/sysv/linux/not-cancel.h index 2c58d5ae2f..a263d294b1 100644 --- a/sysdeps/unix/sysv/linux/not-cancel.h +++ b/sysdeps/unix/sysv/linux/not-cancel.h @@ -23,6 +23,7 @@ #include <sysdep.h> #include <errno.h> #include <unistd.h> +#include <sys/poll.h> #include <sys/syscall.h> #include <sys/wait.h> #include <time.h> @@ -70,9 +71,14 @@ __writev_nocancel_nostatus (int fd, const struct iovec *iov, int iovcnt) static inline int __getrandom_nocancel (void *buf, size_t buflen, unsigned int flags) { - return INTERNAL_SYSCALL_CALL (getrandom, buf, buflen, flags); + return INLINE_SYSCALL_CALL (getrandom, buf, buflen, flags); } +static inline int +__poll_infinity_nocancel (struct pollfd *fds, nfds_t nfds) +{ + return INLINE_SYSCALL_CALL (ppoll, fds, nfds, NULL, NULL, 0); +} /* Uncancelable fcntl. */ __typeof (__fcntl) __fcntl64_nocancel; diff --git a/sysdeps/unix/sysv/linux/tls-internal.c b/sysdeps/unix/sysv/linux/tls-internal.c index 0326ebb767..c8a9ed2d40 100644 --- a/sysdeps/unix/sysv/linux/tls-internal.c +++ b/sysdeps/unix/sysv/linux/tls-internal.c @@ -16,7 +16,6 @@ License along with the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ -#include <stdlib/arc4random.h> #include <string.h> #include <tls-internal.h> @@ -26,13 +25,4 @@ __glibc_tls_internal_free (void) struct pthread *self = THREAD_SELF; free (self->tls_state.strsignal_buf); free (self->tls_state.strerror_l_buf); - - if (self->tls_state.rand_state != NULL) - { - /* Clear any lingering random state prior so if the thread stack is - cached it won't leak any data. */ - explicit_bzero (self->tls_state.rand_state, - sizeof (*self->tls_state.rand_state)); - free (self->tls_state.rand_state); - } } diff --git a/sysdeps/unix/sysv/linux/tls-internal.h b/sysdeps/unix/sysv/linux/tls-internal.h index ebc65d896a..2ebe977802 100644 --- a/sysdeps/unix/sysv/linux/tls-internal.h +++ b/sysdeps/unix/sysv/linux/tls-internal.h @@ -28,7 +28,6 @@ __glibc_tls_internal (void) return &THREAD_SELF->tls_state; } -/* Reset the arc4random TCB state on fork. */ extern void __glibc_tls_internal_free (void) attribute_hidden; #endif diff --git a/sysdeps/x86_64/Makefile b/sysdeps/x86_64/Makefile index 1178475d75..c19bef2dec 100644 --- a/sysdeps/x86_64/Makefile +++ b/sysdeps/x86_64/Makefile @@ -5,13 +5,6 @@ ifeq ($(subdir),csu) gen-as-const-headers += link-defines.sym endif -ifeq ($(subdir),stdlib) -sysdep_routines += \ - chacha20-amd64-sse2 \ - chacha20-amd64-avx2 \ - # sysdep_routines -endif - ifeq ($(subdir),gmon) sysdep_routines += _mcount # We cannot compile _mcount.S with -pg because that would create diff --git a/sysdeps/x86_64/chacha20-amd64-avx2.S b/sysdeps/x86_64/chacha20-amd64-avx2.S deleted file mode 100644 index aefd1cdbd0..0000000000 --- a/sysdeps/x86_64/chacha20-amd64-avx2.S +++ /dev/null @@ -1,328 +0,0 @@ -/* Optimized AVX2 implementation of ChaCha20 cipher. - Copyright (C) 2022 Free Software Foundation, Inc. - - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <https://www.gnu.org/licenses/>. */ - -/* chacha20-amd64-avx2.S - AVX2 implementation of ChaCha20 cipher - - Copyright (C) 2017-2019 Jussi Kivilinna <jussi.kivilinna@iki.fi> - - This file is part of Libgcrypt. - - Libgcrypt is free software; you can redistribute it and/or modify - it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of - the License, or (at your option) any later version. - - Libgcrypt is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with this program; if not, see <https://www.gnu.org/licenses/>. -*/ - -/* Based on D. J. Bernstein reference implementation at - http://cr.yp.to/chacha.html: - - chacha-regs.c version 20080118 - D. J. Bernstein - Public domain. */ - -#include <sysdep.h> - -#ifdef PIC -# define rRIP (%rip) -#else -# define rRIP -#endif - -/* register macros */ -#define INPUT %rdi -#define DST %rsi -#define SRC %rdx -#define NBLKS %rcx -#define ROUND %eax - -/* stack structure */ -#define STACK_VEC_X12 (32) -#define STACK_VEC_X13 (32 + STACK_VEC_X12) -#define STACK_TMP (32 + STACK_VEC_X13) -#define STACK_TMP1 (32 + STACK_TMP) - -#define STACK_MAX (32 + STACK_TMP1) - -/* vector registers */ -#define X0 %ymm0 -#define X1 %ymm1 -#define X2 %ymm2 -#define X3 %ymm3 -#define X4 %ymm4 -#define X5 %ymm5 -#define X6 %ymm6 -#define X7 %ymm7 -#define X8 %ymm8 -#define X9 %ymm9 -#define X10 %ymm10 -#define X11 %ymm11 -#define X12 %ymm12 -#define X13 %ymm13 -#define X14 %ymm14 -#define X15 %ymm15 - -#define X0h %xmm0 -#define X1h %xmm1 -#define X2h %xmm2 -#define X3h %xmm3 -#define X4h %xmm4 -#define X5h %xmm5 -#define X6h %xmm6 -#define X7h %xmm7 -#define X8h %xmm8 -#define X9h %xmm9 -#define X10h %xmm10 -#define X11h %xmm11 -#define X12h %xmm12 -#define X13h %xmm13 -#define X14h %xmm14 -#define X15h %xmm15 - -/********************************************************************** - helper macros - **********************************************************************/ - -/* 4x4 32-bit integer matrix transpose */ -#define transpose_4x4(x0,x1,x2,x3,t1,t2) \ - vpunpckhdq x1, x0, t2; \ - vpunpckldq x1, x0, x0; \ - \ - vpunpckldq x3, x2, t1; \ - vpunpckhdq x3, x2, x2; \ - \ - vpunpckhqdq t1, x0, x1; \ - vpunpcklqdq t1, x0, x0; \ - \ - vpunpckhqdq x2, t2, x3; \ - vpunpcklqdq x2, t2, x2; - -/* 2x2 128-bit matrix transpose */ -#define transpose_16byte_2x2(x0,x1,t1) \ - vmovdqa x0, t1; \ - vperm2i128 $0x20, x1, x0, x0; \ - vperm2i128 $0x31, x1, t1, x1; - -/********************************************************************** - 8-way chacha20 - **********************************************************************/ - -#define ROTATE2(v1,v2,c,tmp) \ - vpsrld $(32 - (c)), v1, tmp; \ - vpslld $(c), v1, v1; \ - vpaddb tmp, v1, v1; \ - vpsrld $(32 - (c)), v2, tmp; \ - vpslld $(c), v2, v2; \ - vpaddb tmp, v2, v2; - -#define ROTATE_SHUF_2(v1,v2,shuf) \ - vpshufb shuf, v1, v1; \ - vpshufb shuf, v2, v2; - -#define XOR(ds,s) \ - vpxor s, ds, ds; - -#define PLUS(ds,s) \ - vpaddd s, ds, ds; - -#define QUARTERROUND2(a1,b1,c1,d1,a2,b2,c2,d2,ign,tmp1,\ - interleave_op1,interleave_op2,\ - interleave_op3,interleave_op4) \ - vbroadcasti128 .Lshuf_rol16 rRIP, tmp1; \ - interleave_op1; \ - PLUS(a1,b1); PLUS(a2,b2); XOR(d1,a1); XOR(d2,a2); \ - ROTATE_SHUF_2(d1, d2, tmp1); \ - interleave_op2; \ - PLUS(c1,d1); PLUS(c2,d2); XOR(b1,c1); XOR(b2,c2); \ - ROTATE2(b1, b2, 12, tmp1); \ - vbroadcasti128 .Lshuf_rol8 rRIP, tmp1; \ - interleave_op3; \ - PLUS(a1,b1); PLUS(a2,b2); XOR(d1,a1); XOR(d2,a2); \ - ROTATE_SHUF_2(d1, d2, tmp1); \ - interleave_op4; \ - PLUS(c1,d1); PLUS(c2,d2); XOR(b1,c1); XOR(b2,c2); \ - ROTATE2(b1, b2, 7, tmp1); - - .section .text.avx2, "ax", @progbits - .align 32 -chacha20_data: -L(shuf_rol16): - .byte 2,3,0,1,6,7,4,5,10,11,8,9,14,15,12,13 -L(shuf_rol8): - .byte 3,0,1,2,7,4,5,6,11,8,9,10,15,12,13,14 -L(inc_counter): - .byte 0,1,2,3,4,5,6,7 -L(unsigned_cmp): - .long 0x80000000 - - .hidden __chacha20_avx2_blocks8 -ENTRY (__chacha20_avx2_blocks8) - /* input: - * %rdi: input - * %rsi: dst - * %rdx: src - * %rcx: nblks (multiple of 8) - */ - vzeroupper; - - pushq %rbp; - cfi_adjust_cfa_offset(8); - cfi_rel_offset(rbp, 0) - movq %rsp, %rbp; - cfi_def_cfa_register(rbp); - - subq $STACK_MAX, %rsp; - andq $~31, %rsp; - -L(loop8): - mov $20, ROUND; - - /* Construct counter vectors X12 and X13 */ - vpmovzxbd L(inc_counter) rRIP, X0; - vpbroadcastd L(unsigned_cmp) rRIP, X2; - vpbroadcastd (12 * 4)(INPUT), X12; - vpbroadcastd (13 * 4)(INPUT), X13; - vpaddd X0, X12, X12; - vpxor X2, X0, X0; - vpxor X2, X12, X1; - vpcmpgtd X1, X0, X0; - vpsubd X0, X13, X13; - vmovdqa X12, (STACK_VEC_X12)(%rsp); - vmovdqa X13, (STACK_VEC_X13)(%rsp); - - /* Load vectors */ - vpbroadcastd (0 * 4)(INPUT), X0; - vpbroadcastd (1 * 4)(INPUT), X1; - vpbroadcastd (2 * 4)(INPUT), X2; - vpbroadcastd (3 * 4)(INPUT), X3; - vpbroadcastd (4 * 4)(INPUT), X4; - vpbroadcastd (5 * 4)(INPUT), X5; - vpbroadcastd (6 * 4)(INPUT), X6; - vpbroadcastd (7 * 4)(INPUT), X7; - vpbroadcastd (8 * 4)(INPUT), X8; - vpbroadcastd (9 * 4)(INPUT), X9; - vpbroadcastd (10 * 4)(INPUT), X10; - vpbroadcastd (11 * 4)(INPUT), X11; - vpbroadcastd (14 * 4)(INPUT), X14; - vpbroadcastd (15 * 4)(INPUT), X15; - vmovdqa X15, (STACK_TMP)(%rsp); - -L(round2): - QUARTERROUND2(X0, X4, X8, X12, X1, X5, X9, X13, tmp:=,X15,,,,) - vmovdqa (STACK_TMP)(%rsp), X15; - vmovdqa X8, (STACK_TMP)(%rsp); - QUARTERROUND2(X2, X6, X10, X14, X3, X7, X11, X15, tmp:=,X8,,,,) - QUARTERROUND2(X0, X5, X10, X15, X1, X6, X11, X12, tmp:=,X8,,,,) - vmovdqa (STACK_TMP)(%rsp), X8; - vmovdqa X15, (STACK_TMP)(%rsp); - QUARTERROUND2(X2, X7, X8, X13, X3, X4, X9, X14, tmp:=,X15,,,,) - sub $2, ROUND; - jnz L(round2); - - vmovdqa X8, (STACK_TMP1)(%rsp); - - /* tmp := X15 */ - vpbroadcastd (0 * 4)(INPUT), X15; - PLUS(X0, X15); - vpbroadcastd (1 * 4)(INPUT), X15; - PLUS(X1, X15); - vpbroadcastd (2 * 4)(INPUT), X15; - PLUS(X2, X15); - vpbroadcastd (3 * 4)(INPUT), X15; - PLUS(X3, X15); - vpbroadcastd (4 * 4)(INPUT), X15; - PLUS(X4, X15); - vpbroadcastd (5 * 4)(INPUT), X15; - PLUS(X5, X15); - vpbroadcastd (6 * 4)(INPUT), X15; - PLUS(X6, X15); - vpbroadcastd (7 * 4)(INPUT), X15; - PLUS(X7, X15); - transpose_4x4(X0, X1, X2, X3, X8, X15); - transpose_4x4(X4, X5, X6, X7, X8, X15); - vmovdqa (STACK_TMP1)(%rsp), X8; - transpose_16byte_2x2(X0, X4, X15); - transpose_16byte_2x2(X1, X5, X15); - transpose_16byte_2x2(X2, X6, X15); - transpose_16byte_2x2(X3, X7, X15); - vmovdqa (STACK_TMP)(%rsp), X15; - vmovdqu X0, (64 * 0 + 16 * 0)(DST) - vmovdqu X1, (64 * 1 + 16 * 0)(DST) - vpbroadcastd (8 * 4)(INPUT), X0; - PLUS(X8, X0); - vpbroadcastd (9 * 4)(INPUT), X0; - PLUS(X9, X0); - vpbroadcastd (10 * 4)(INPUT), X0; - PLUS(X10, X0); - vpbroadcastd (11 * 4)(INPUT), X0; - PLUS(X11, X0); - vmovdqa (STACK_VEC_X12)(%rsp), X0; - PLUS(X12, X0); - vmovdqa (STACK_VEC_X13)(%rsp), X0; - PLUS(X13, X0); - vpbroadcastd (14 * 4)(INPUT), X0; - PLUS(X14, X0); - vpbroadcastd (15 * 4)(INPUT), X0; - PLUS(X15, X0); - vmovdqu X2, (64 * 2 + 16 * 0)(DST) - vmovdqu X3, (64 * 3 + 16 * 0)(DST) - - /* Update counter */ - addq $8, (12 * 4)(INPUT); - - transpose_4x4(X8, X9, X10, X11, X0, X1); - transpose_4x4(X12, X13, X14, X15, X0, X1); - vmovdqu X4, (64 * 4 + 16 * 0)(DST) - vmovdqu X5, (64 * 5 + 16 * 0)(DST) - transpose_16byte_2x2(X8, X12, X0); - transpose_16byte_2x2(X9, X13, X0); - transpose_16byte_2x2(X10, X14, X0); - transpose_16byte_2x2(X11, X15, X0); - vmovdqu X6, (64 * 6 + 16 * 0)(DST) - vmovdqu X7, (64 * 7 + 16 * 0)(DST) - vmovdqu X8, (64 * 0 + 16 * 2)(DST) - vmovdqu X9, (64 * 1 + 16 * 2)(DST) - vmovdqu X10, (64 * 2 + 16 * 2)(DST) - vmovdqu X11, (64 * 3 + 16 * 2)(DST) - vmovdqu X12, (64 * 4 + 16 * 2)(DST) - vmovdqu X13, (64 * 5 + 16 * 2)(DST) - vmovdqu X14, (64 * 6 + 16 * 2)(DST) - vmovdqu X15, (64 * 7 + 16 * 2)(DST) - - sub $8, NBLKS; - lea (8 * 64)(DST), DST; - lea (8 * 64)(SRC), SRC; - jnz L(loop8); - - vzeroupper; - - /* eax zeroed by round loop. */ - leave; - cfi_adjust_cfa_offset(-8) - cfi_def_cfa_register(%rsp); - ret; - int3; -END(__chacha20_avx2_blocks8) diff --git a/sysdeps/x86_64/chacha20-amd64-sse2.S b/sysdeps/x86_64/chacha20-amd64-sse2.S deleted file mode 100644 index 351a1109c6..0000000000 --- a/sysdeps/x86_64/chacha20-amd64-sse2.S +++ /dev/null @@ -1,311 +0,0 @@ -/* Optimized SSE2 implementation of ChaCha20 cipher. - Copyright (C) 2022 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <https://www.gnu.org/licenses/>. */ - -/* chacha20-amd64-ssse3.S - SSSE3 implementation of ChaCha20 cipher - - Copyright (C) 2017-2019 Jussi Kivilinna <jussi.kivilinna@iki.fi> - - This file is part of Libgcrypt. - - Libgcrypt is free software; you can redistribute it and/or modify - it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of - the License, or (at your option) any later version. - - Libgcrypt is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with this program; if not, see <https://www.gnu.org/licenses/>. -*/ - -/* Based on D. J. Bernstein reference implementation at - http://cr.yp.to/chacha.html: - - chacha-regs.c version 20080118 - D. J. Bernstein - Public domain. */ - -#include <sysdep.h> -#include <isa-level.h> - -#if MINIMUM_X86_ISA_LEVEL <= 2 - -#ifdef PIC -# define rRIP (%rip) -#else -# define rRIP -#endif - -/* 'ret' instruction replacement for straight-line speculation mitigation */ -#define ret_spec_stop \ - ret; int3; - -/* register macros */ -#define INPUT %rdi -#define DST %rsi -#define SRC %rdx -#define NBLKS %rcx -#define ROUND %eax - -/* stack structure */ -#define STACK_VEC_X12 (16) -#define STACK_VEC_X13 (16 + STACK_VEC_X12) -#define STACK_TMP (16 + STACK_VEC_X13) -#define STACK_TMP1 (16 + STACK_TMP) -#define STACK_TMP2 (16 + STACK_TMP1) - -#define STACK_MAX (16 + STACK_TMP2) - -/* vector registers */ -#define X0 %xmm0 -#define X1 %xmm1 -#define X2 %xmm2 -#define X3 %xmm3 -#define X4 %xmm4 -#define X5 %xmm5 -#define X6 %xmm6 -#define X7 %xmm7 -#define X8 %xmm8 -#define X9 %xmm9 -#define X10 %xmm10 -#define X11 %xmm11 -#define X12 %xmm12 -#define X13 %xmm13 -#define X14 %xmm14 -#define X15 %xmm15 - -/********************************************************************** - helper macros - **********************************************************************/ - -/* 4x4 32-bit integer matrix transpose */ -#define TRANSPOSE_4x4(x0, x1, x2, x3, t1, t2, t3) \ - movdqa x0, t2; \ - punpckhdq x1, t2; \ - punpckldq x1, x0; \ - \ - movdqa x2, t1; \ - punpckldq x3, t1; \ - punpckhdq x3, x2; \ - \ - movdqa x0, x1; \ - punpckhqdq t1, x1; \ - punpcklqdq t1, x0; \ - \ - movdqa t2, x3; \ - punpckhqdq x2, x3; \ - punpcklqdq x2, t2; \ - movdqa t2, x2; - -/* fill xmm register with 32-bit value from memory */ -#define PBROADCASTD(mem32, xreg) \ - movd mem32, xreg; \ - pshufd $0, xreg, xreg; - -/********************************************************************** - 4-way chacha20 - **********************************************************************/ - -#define ROTATE2(v1,v2,c,tmp1,tmp2) \ - movdqa v1, tmp1; \ - movdqa v2, tmp2; \ - psrld $(32 - (c)), v1; \ - pslld $(c), tmp1; \ - paddb tmp1, v1; \ - psrld $(32 - (c)), v2; \ - pslld $(c), tmp2; \ - paddb tmp2, v2; - -#define XOR(ds,s) \ - pxor s, ds; - -#define PLUS(ds,s) \ - paddd s, ds; - -#define QUARTERROUND2(a1,b1,c1,d1,a2,b2,c2,d2,ign,tmp1,tmp2) \ - PLUS(a1,b1); PLUS(a2,b2); XOR(d1,a1); XOR(d2,a2); \ - ROTATE2(d1, d2, 16, tmp1, tmp2); \ - PLUS(c1,d1); PLUS(c2,d2); XOR(b1,c1); XOR(b2,c2); \ - ROTATE2(b1, b2, 12, tmp1, tmp2); \ - PLUS(a1,b1); PLUS(a2,b2); XOR(d1,a1); XOR(d2,a2); \ - ROTATE2(d1, d2, 8, tmp1, tmp2); \ - PLUS(c1,d1); PLUS(c2,d2); XOR(b1,c1); XOR(b2,c2); \ - ROTATE2(b1, b2, 7, tmp1, tmp2); - - .section .text.sse2,"ax",@progbits - -chacha20_data: - .align 16 -L(counter1): - .long 1,0,0,0 -L(inc_counter): - .long 0,1,2,3 -L(unsigned_cmp): - .long 0x80000000,0x80000000,0x80000000,0x80000000 - - .hidden __chacha20_sse2_blocks4 -ENTRY (__chacha20_sse2_blocks4) - /* input: - * %rdi: input - * %rsi: dst - * %rdx: src - * %rcx: nblks (multiple of 4) - */ - - pushq %rbp; - cfi_adjust_cfa_offset(8); - cfi_rel_offset(rbp, 0) - movq %rsp, %rbp; - cfi_def_cfa_register(%rbp); - - subq $STACK_MAX, %rsp; - andq $~15, %rsp; - -L(loop4): - mov $20, ROUND; - - /* Construct counter vectors X12 and X13 */ - movdqa L(inc_counter) rRIP, X0; - movdqa L(unsigned_cmp) rRIP, X2; - PBROADCASTD((12 * 4)(INPUT), X12); - PBROADCASTD((13 * 4)(INPUT), X13); - paddd X0, X12; - movdqa X12, X1; - pxor X2, X0; - pxor X2, X1; - pcmpgtd X1, X0; - psubd X0, X13; - movdqa X12, (STACK_VEC_X12)(%rsp); - movdqa X13, (STACK_VEC_X13)(%rsp); - - /* Load vectors */ - PBROADCASTD((0 * 4)(INPUT), X0); - PBROADCASTD((1 * 4)(INPUT), X1); - PBROADCASTD((2 * 4)(INPUT), X2); - PBROADCASTD((3 * 4)(INPUT), X3); - PBROADCASTD((4 * 4)(INPUT), X4); - PBROADCASTD((5 * 4)(INPUT), X5); - PBROADCASTD((6 * 4)(INPUT), X6); - PBROADCASTD((7 * 4)(INPUT), X7); - PBROADCASTD((8 * 4)(INPUT), X8); - PBROADCASTD((9 * 4)(INPUT), X9); - PBROADCASTD((10 * 4)(INPUT), X10); - PBROADCASTD((11 * 4)(INPUT), X11); - PBROADCASTD((14 * 4)(INPUT), X14); - PBROADCASTD((15 * 4)(INPUT), X15); - movdqa X11, (STACK_TMP)(%rsp); - movdqa X15, (STACK_TMP1)(%rsp); - -L(round2_4): - QUARTERROUND2(X0, X4, X8, X12, X1, X5, X9, X13, tmp:=,X11,X15) - movdqa (STACK_TMP)(%rsp), X11; - movdqa (STACK_TMP1)(%rsp), X15; - movdqa X8, (STACK_TMP)(%rsp); - movdqa X9, (STACK_TMP1)(%rsp); - QUARTERROUND2(X2, X6, X10, X14, X3, X7, X11, X15, tmp:=,X8,X9) - QUARTERROUND2(X0, X5, X10, X15, X1, X6, X11, X12, tmp:=,X8,X9) - movdqa (STACK_TMP)(%rsp), X8; - movdqa (STACK_TMP1)(%rsp), X9; - movdqa X11, (STACK_TMP)(%rsp); - movdqa X15, (STACK_TMP1)(%rsp); - QUARTERROUND2(X2, X7, X8, X13, X3, X4, X9, X14, tmp:=,X11,X15) - sub $2, ROUND; - jnz L(round2_4); - - /* tmp := X15 */ - movdqa (STACK_TMP)(%rsp), X11; - PBROADCASTD((0 * 4)(INPUT), X15); - PLUS(X0, X15); - PBROADCASTD((1 * 4)(INPUT), X15); - PLUS(X1, X15); - PBROADCASTD((2 * 4)(INPUT), X15); - PLUS(X2, X15); - PBROADCASTD((3 * 4)(INPUT), X15); - PLUS(X3, X15); - PBROADCASTD((4 * 4)(INPUT), X15); - PLUS(X4, X15); - PBROADCASTD((5 * 4)(INPUT), X15); - PLUS(X5, X15); - PBROADCASTD((6 * 4)(INPUT), X15); - PLUS(X6, X15); - PBROADCASTD((7 * 4)(INPUT), X15); - PLUS(X7, X15); - PBROADCASTD((8 * 4)(INPUT), X15); - PLUS(X8, X15); - PBROADCASTD((9 * 4)(INPUT), X15); - PLUS(X9, X15); - PBROADCASTD((10 * 4)(INPUT), X15); - PLUS(X10, X15); - PBROADCASTD((11 * 4)(INPUT), X15); - PLUS(X11, X15); - movdqa (STACK_VEC_X12)(%rsp), X15; - PLUS(X12, X15); - movdqa (STACK_VEC_X13)(%rsp), X15; - PLUS(X13, X15); - movdqa X13, (STACK_TMP)(%rsp); - PBROADCASTD((14 * 4)(INPUT), X15); - PLUS(X14, X15); - movdqa (STACK_TMP1)(%rsp), X15; - movdqa X14, (STACK_TMP1)(%rsp); - PBROADCASTD((15 * 4)(INPUT), X13); - PLUS(X15, X13); - movdqa X15, (STACK_TMP2)(%rsp); - - /* Update counter */ - addq $4, (12 * 4)(INPUT); - - TRANSPOSE_4x4(X0, X1, X2, X3, X13, X14, X15); - movdqu X0, (64 * 0 + 16 * 0)(DST) - movdqu X1, (64 * 1 + 16 * 0)(DST) - movdqu X2, (64 * 2 + 16 * 0)(DST) - movdqu X3, (64 * 3 + 16 * 0)(DST) - TRANSPOSE_4x4(X4, X5, X6, X7, X0, X1, X2); - movdqa (STACK_TMP)(%rsp), X13; - movdqa (STACK_TMP1)(%rsp), X14; - movdqa (STACK_TMP2)(%rsp), X15; - movdqu X4, (64 * 0 + 16 * 1)(DST) - movdqu X5, (64 * 1 + 16 * 1)(DST) - movdqu X6, (64 * 2 + 16 * 1)(DST) - movdqu X7, (64 * 3 + 16 * 1)(DST) - TRANSPOSE_4x4(X8, X9, X10, X11, X0, X1, X2); - movdqu X8, (64 * 0 + 16 * 2)(DST) - movdqu X9, (64 * 1 + 16 * 2)(DST) - movdqu X10, (64 * 2 + 16 * 2)(DST) - movdqu X11, (64 * 3 + 16 * 2)(DST) - TRANSPOSE_4x4(X12, X13, X14, X15, X0, X1, X2); - movdqu X12, (64 * 0 + 16 * 3)(DST) - movdqu X13, (64 * 1 + 16 * 3)(DST) - movdqu X14, (64 * 2 + 16 * 3)(DST) - movdqu X15, (64 * 3 + 16 * 3)(DST) - - sub $4, NBLKS; - lea (4 * 64)(DST), DST; - lea (4 * 64)(SRC), SRC; - jnz L(loop4); - - /* eax zeroed by round loop. */ - leave; - cfi_adjust_cfa_offset(-8) - cfi_def_cfa_register(%rsp); - ret_spec_stop; -END (__chacha20_sse2_blocks4) - -#endif /* if MINIMUM_X86_ISA_LEVEL <= 2 */ diff --git a/sysdeps/x86_64/chacha20_arch.h b/sysdeps/x86_64/chacha20_arch.h deleted file mode 100644 index 6f3784e392..0000000000 --- a/sysdeps/x86_64/chacha20_arch.h +++ /dev/null @@ -1,55 +0,0 @@ -/* Chacha20 implementation, used on arc4random. - Copyright (C) 2022 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <https://www.gnu.org/licenses/>. */ - -#include <isa-level.h> -#include <ldsodefs.h> -#include <cpu-features.h> -#include <sys/param.h> - -unsigned int __chacha20_sse2_blocks4 (uint32_t *state, uint8_t *dst, - const uint8_t *src, size_t nblks) - attribute_hidden; -unsigned int __chacha20_avx2_blocks8 (uint32_t *state, uint8_t *dst, - const uint8_t *src, size_t nblks) - attribute_hidden; - -static inline void -chacha20_crypt (uint32_t *state, uint8_t *dst, const uint8_t *src, - size_t bytes) -{ - _Static_assert (CHACHA20_BUFSIZE % 4 == 0 && CHACHA20_BUFSIZE % 8 == 0, - "CHACHA20_BUFSIZE not multiple of 4 or 8"); - _Static_assert (CHACHA20_BUFSIZE >= CHACHA20_BLOCK_SIZE * 8, - "CHACHA20_BUFSIZE < CHACHA20_BLOCK_SIZE * 8"); - -#if MINIMUM_X86_ISA_LEVEL > 2 - __chacha20_avx2_blocks8 (state, dst, src, - CHACHA20_BUFSIZE / CHACHA20_BLOCK_SIZE); -#else - const struct cpu_features* cpu_features = __get_cpu_features (); - - /* AVX2 version uses vzeroupper, so disable it if RTM is enabled. */ - if (X86_ISA_CPU_FEATURE_USABLE_P (cpu_features, AVX2) - && X86_ISA_CPU_FEATURES_ARCH_P (cpu_features, Prefer_No_VZEROUPPER, !)) - __chacha20_avx2_blocks8 (state, dst, src, - CHACHA20_BUFSIZE / CHACHA20_BLOCK_SIZE); - else - __chacha20_sse2_blocks4 (state, dst, src, - CHACHA20_BUFSIZE / CHACHA20_BLOCK_SIZE); -#endif -} |