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_cryptodev.h
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cbc_mac.h
(2.42 KB)
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cryptodev.h
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deflate.h
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gfmult.h
(3.94 KB)
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gmac.h
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rijndael.h
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rmd160.h
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xform.h
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xform_auth.h
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xform_comp.h
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xform_enc.h
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xform_poly1305.h
(397 B)
Editing: gfmult.h
/*- * Copyright (c) 2014 The FreeBSD Foundation * All rights reserved. * * This software was developed by John-Mark Gurney under * the sponsorship of the FreeBSD Foundation and * Rubicon Communications, LLC (Netgate). * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $FreeBSD$ * */ #ifndef _GFMULT_H_ #define _GFMULT_H_ #ifdef __APPLE__ #define __aligned(x) __attribute__((__aligned__(x))) #define be64dec(buf) __builtin_bswap64(*(uint64_t *)buf) #define be64enc(buf, x) (*(uint64_t *)buf = __builtin_bswap64(x)) #else #include <sys/endian.h> #endif #ifdef _KERNEL #include <sys/types.h> #else #include <stdint.h> #include <strings.h> #endif #define REQ_ALIGN (16 * 4) /* * The rows are striped across cache lines. Note that the indexes * are bit reversed to make accesses quicker. */ struct gf128table { uint32_t a[16] __aligned(REQ_ALIGN); /* bits 0 - 31 */ uint32_t b[16] __aligned(REQ_ALIGN); /* bits 63 - 32 */ uint32_t c[16] __aligned(REQ_ALIGN); /* bits 95 - 64 */ uint32_t d[16] __aligned(REQ_ALIGN); /* bits 127 - 96 */ } __aligned(REQ_ALIGN); /* * A set of tables that contain h, h^2, h^3, h^4. To be used w/ gf128_mul4. */ struct gf128table4 { struct gf128table tbls[4]; }; /* * GCM per spec is bit reversed in memory. So byte 0 is really bit reversed * and contains bits 0-7. We can deal w/ this by using right shifts and * related math instead of having to bit reverse everything. This means that * the low bits are in v[0] (bits 0-63) and reverse order, while the high * bits are in v[1] (bits 64-127) and reverse order. The high bit of v[0] is * bit 0, and the low bit of v[1] is bit 127. */ struct gf128 { uint64_t v[2]; }; /* Note that we don't bit reverse in MAKE_GF128. */ #define MAKE_GF128(a, b) ((struct gf128){.v = { (a), (b) } }) #define GF128_EQ(a, b) ((((a).v[0] ^ (b).v[0]) | \ ((a).v[1] ^ (b).v[1])) == 0) static inline struct gf128 gf128_read(const uint8_t *buf) { struct gf128 r; r.v[0] = be64dec(buf); buf += sizeof(uint64_t); r.v[1] = be64dec(buf); return r; } static inline void gf128_write(struct gf128 v, uint8_t *buf) { uint64_t tmp; be64enc(buf, v.v[0]); buf += sizeof tmp; be64enc(buf, v.v[1]); } static inline struct gf128 __pure /* XXX - __pure2 instead */ gf128_add(struct gf128 a, struct gf128 b) { a.v[0] ^= b.v[0]; a.v[1] ^= b.v[1]; return a; } void gf128_genmultable(struct gf128 h, struct gf128table *t); void gf128_genmultable4(struct gf128 h, struct gf128table4 *t); struct gf128 gf128_mul(struct gf128 v, struct gf128table *tbl); struct gf128 gf128_mul4(struct gf128 a, struct gf128 b, struct gf128 c, struct gf128 d, struct gf128table4 *tbl); struct gf128 gf128_mul4b(struct gf128 r, const uint8_t *v, struct gf128table4 *tbl); #endif /* _GFMULT_H_ */
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