update ceph source to reef 18.1.2

[ceph.git] / ceph / src / crypto / isa-l / isa-l_crypto / sha256_mb / sha256_ctx_base.c

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  modification, are permitted provided that the following conditions
  are met:
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#include <string.h>
#include "sha256_mb.h"
#include "memcpy_inline.h"
#include "endian_helper.h"

#ifdef _MSC_VER
#include <intrin.h>
#define inline __inline
#endif

#if (__GNUC__ >= 11)
# define OPT_FIX __attribute__ ((noipa))
#else
# define OPT_FIX
#endif

#define ror32(x, r) (((x)>>(r)) ^ ((x)<<(32-(r))))

#define W(x) w[(x) & 15]

#define S0(w) (ror32(w,7) ^ ror32(w,18) ^ (w >> 3))
#define S1(w) (ror32(w,17) ^ ror32(w,19) ^ (w >> 10))

#define s0(a) (ror32(a,2) ^ ror32(a,13) ^ ror32(a,22))
#define s1(e) (ror32(e,6) ^ ror32(e,11) ^ ror32(e,25))
#define maj(a,b,c) ((a & b) ^ (a & c) ^ (b & c))
#define ch(e,f,g) ((e & f) ^ (g & ~e))

#define step(i,a,b,c,d,e,f,g,h,k) \
	if (i<16) W(i) = to_be32(ww[i]); \
	else \
	W(i) = W(i-16) + S0(W(i-15)) + W(i-7) + S1(W(i-2)); \
	t2 = s0(a) + maj(a,b,c); \
	t1 = h + s1(e) + ch(e,f,g) + k + W(i); \
	d += t1; \
	h = t1 + t2;

static void sha256_init(SHA256_HASH_CTX * ctx, const void *buffer, uint32_t len);
static uint32_t sha256_update(SHA256_HASH_CTX * ctx, const void *buffer, uint32_t len);
static void sha256_final(SHA256_HASH_CTX * ctx, uint32_t remain_len);
static void OPT_FIX sha256_single(const void *data, uint32_t digest[]);
static inline void hash_init_digest(SHA256_WORD_T * digest);

void sha256_ctx_mgr_init_base(SHA256_HASH_CTX_MGR * mgr)
{
}

SHA256_HASH_CTX *sha256_ctx_mgr_submit_base(SHA256_HASH_CTX_MGR * mgr, SHA256_HASH_CTX * ctx,
					    const void *buffer, uint32_t len,
					    HASH_CTX_FLAG flags)
{
	uint32_t remain_len;

	if (flags & (~HASH_ENTIRE)) {
		// User should not pass anything other than FIRST, UPDATE, or LAST
		ctx->error = HASH_CTX_ERROR_INVALID_FLAGS;
		return ctx;
	}

	if ((ctx->status & HASH_CTX_STS_PROCESSING) && (flags == HASH_ENTIRE)) {
		// Cannot submit a new entire job to a currently processing job.
		ctx->error = HASH_CTX_ERROR_ALREADY_PROCESSING;
		return ctx;
	}

	if ((ctx->status & HASH_CTX_STS_COMPLETE) && !(flags & HASH_FIRST)) {
		// Cannot update a finished job.
		ctx->error = HASH_CTX_ERROR_ALREADY_COMPLETED;
		return ctx;
	}

	if (flags == HASH_FIRST) {

		sha256_init(ctx, buffer, len);
		sha256_update(ctx, buffer, len);
	}

	if (flags == HASH_UPDATE) {
		sha256_update(ctx, buffer, len);
	}

	if (flags == HASH_LAST) {
		remain_len = sha256_update(ctx, buffer, len);
		sha256_final(ctx, remain_len);
	}

	if (flags == HASH_ENTIRE) {
		sha256_init(ctx, buffer, len);
		remain_len = sha256_update(ctx, buffer, len);
		sha256_final(ctx, remain_len);
	}

	return ctx;
}

SHA256_HASH_CTX *sha256_ctx_mgr_flush_base(SHA256_HASH_CTX_MGR * mgr)
{
	return NULL;
}

static void sha256_init(SHA256_HASH_CTX * ctx, const void *buffer, uint32_t len)
{
	// Init digest
	hash_init_digest(ctx->job.result_digest);

	// Reset byte counter
	ctx->total_length = 0;

	// Clear extra blocks
	ctx->partial_block_buffer_length = 0;

	// If we made it here, there were no errors during this call to submit
	ctx->error = HASH_CTX_ERROR_NONE;

	// Mark it as processing
	ctx->status = HASH_CTX_STS_PROCESSING;
}

static uint32_t sha256_update(SHA256_HASH_CTX * ctx, const void *buffer, uint32_t len)
{
	uint32_t remain_len = len;
	uint32_t *digest = ctx->job.result_digest;

	while (remain_len >= SHA256_BLOCK_SIZE) {
		sha256_single(buffer, digest);
		buffer = (void *)((uint8_t *) buffer + SHA256_BLOCK_SIZE);
		remain_len -= SHA256_BLOCK_SIZE;
		ctx->total_length += SHA256_BLOCK_SIZE;
	}
	ctx->status = HASH_CTX_STS_IDLE;
	ctx->incoming_buffer = buffer;
	return remain_len;
}

static void sha256_final(SHA256_HASH_CTX * ctx, uint32_t remain_len)
{
	const void *buffer = ctx->incoming_buffer;
	uint32_t i = remain_len, j;
	uint8_t buf[2 * SHA256_BLOCK_SIZE];
	uint32_t *digest = ctx->job.result_digest;

	ctx->total_length += i;
	memcpy(buf, buffer, i);
	buf[i++] = 0x80;
	for (j = i; j < ((2 * SHA256_BLOCK_SIZE) - SHA256_PADLENGTHFIELD_SIZE); j++)
		buf[j] = 0;

	if (i > SHA256_BLOCK_SIZE - SHA256_PADLENGTHFIELD_SIZE)
		i = 2 * SHA256_BLOCK_SIZE;
	else
		i = SHA256_BLOCK_SIZE;

	*(uint64_t *) (buf + i - 8) = to_be64((uint64_t) ctx->total_length * 8);

	sha256_single(buf, digest);
	if (i == 2 * SHA256_BLOCK_SIZE) {
		sha256_single(buf + SHA256_BLOCK_SIZE, digest);
	}

	ctx->status = HASH_CTX_STS_COMPLETE;
}

void sha256_single(const void *data, uint32_t digest[])
{
	uint32_t a, b, c, d, e, f, g, h, t1, t2;
	uint32_t w[16];
	uint32_t *ww = (uint32_t *) data;

	a = digest[0];
	b = digest[1];
	c = digest[2];
	d = digest[3];
	e = digest[4];
	f = digest[5];
	g = digest[6];
	h = digest[7];

	step(0, a, b, c, d, e, f, g, h, 0x428a2f98);
	step(1, h, a, b, c, d, e, f, g, 0x71374491);
	step(2, g, h, a, b, c, d, e, f, 0xb5c0fbcf);
	step(3, f, g, h, a, b, c, d, e, 0xe9b5dba5);
	step(4, e, f, g, h, a, b, c, d, 0x3956c25b);
	step(5, d, e, f, g, h, a, b, c, 0x59f111f1);
	step(6, c, d, e, f, g, h, a, b, 0x923f82a4);
	step(7, b, c, d, e, f, g, h, a, 0xab1c5ed5);
	step(8, a, b, c, d, e, f, g, h, 0xd807aa98);
	step(9, h, a, b, c, d, e, f, g, 0x12835b01);
	step(10, g, h, a, b, c, d, e, f, 0x243185be);
	step(11, f, g, h, a, b, c, d, e, 0x550c7dc3);
	step(12, e, f, g, h, a, b, c, d, 0x72be5d74);
	step(13, d, e, f, g, h, a, b, c, 0x80deb1fe);
	step(14, c, d, e, f, g, h, a, b, 0x9bdc06a7);
	step(15, b, c, d, e, f, g, h, a, 0xc19bf174);
	step(16, a, b, c, d, e, f, g, h, 0xe49b69c1);
	step(17, h, a, b, c, d, e, f, g, 0xefbe4786);
	step(18, g, h, a, b, c, d, e, f, 0x0fc19dc6);
	step(19, f, g, h, a, b, c, d, e, 0x240ca1cc);
	step(20, e, f, g, h, a, b, c, d, 0x2de92c6f);
	step(21, d, e, f, g, h, a, b, c, 0x4a7484aa);
	step(22, c, d, e, f, g, h, a, b, 0x5cb0a9dc);
	step(23, b, c, d, e, f, g, h, a, 0x76f988da);
	step(24, a, b, c, d, e, f, g, h, 0x983e5152);
	step(25, h, a, b, c, d, e, f, g, 0xa831c66d);
	step(26, g, h, a, b, c, d, e, f, 0xb00327c8);
	step(27, f, g, h, a, b, c, d, e, 0xbf597fc7);
	step(28, e, f, g, h, a, b, c, d, 0xc6e00bf3);
	step(29, d, e, f, g, h, a, b, c, 0xd5a79147);
	step(30, c, d, e, f, g, h, a, b, 0x06ca6351);
	step(31, b, c, d, e, f, g, h, a, 0x14292967);
	step(32, a, b, c, d, e, f, g, h, 0x27b70a85);
	step(33, h, a, b, c, d, e, f, g, 0x2e1b2138);
	step(34, g, h, a, b, c, d, e, f, 0x4d2c6dfc);
	step(35, f, g, h, a, b, c, d, e, 0x53380d13);
	step(36, e, f, g, h, a, b, c, d, 0x650a7354);
	step(37, d, e, f, g, h, a, b, c, 0x766a0abb);
	step(38, c, d, e, f, g, h, a, b, 0x81c2c92e);
	step(39, b, c, d, e, f, g, h, a, 0x92722c85);
	step(40, a, b, c, d, e, f, g, h, 0xa2bfe8a1);
	step(41, h, a, b, c, d, e, f, g, 0xa81a664b);
	step(42, g, h, a, b, c, d, e, f, 0xc24b8b70);
	step(43, f, g, h, a, b, c, d, e, 0xc76c51a3);
	step(44, e, f, g, h, a, b, c, d, 0xd192e819);
	step(45, d, e, f, g, h, a, b, c, 0xd6990624);
	step(46, c, d, e, f, g, h, a, b, 0xf40e3585);
	step(47, b, c, d, e, f, g, h, a, 0x106aa070);
	step(48, a, b, c, d, e, f, g, h, 0x19a4c116);
	step(49, h, a, b, c, d, e, f, g, 0x1e376c08);
	step(50, g, h, a, b, c, d, e, f, 0x2748774c);
	step(51, f, g, h, a, b, c, d, e, 0x34b0bcb5);
	step(52, e, f, g, h, a, b, c, d, 0x391c0cb3);
	step(53, d, e, f, g, h, a, b, c, 0x4ed8aa4a);
	step(54, c, d, e, f, g, h, a, b, 0x5b9cca4f);
	step(55, b, c, d, e, f, g, h, a, 0x682e6ff3);
	step(56, a, b, c, d, e, f, g, h, 0x748f82ee);
	step(57, h, a, b, c, d, e, f, g, 0x78a5636f);
	step(58, g, h, a, b, c, d, e, f, 0x84c87814);
	step(59, f, g, h, a, b, c, d, e, 0x8cc70208);
	step(60, e, f, g, h, a, b, c, d, 0x90befffa);
	step(61, d, e, f, g, h, a, b, c, 0xa4506ceb);
	step(62, c, d, e, f, g, h, a, b, 0xbef9a3f7);
	step(63, b, c, d, e, f, g, h, a, 0xc67178f2);

	digest[0] += a;
	digest[1] += b;
	digest[2] += c;
	digest[3] += d;
	digest[4] += e;
	digest[5] += f;
	digest[6] += g;
	digest[7] += h;
}

static inline void hash_init_digest(SHA256_WORD_T * digest)
{
	static const SHA256_WORD_T hash_initial_digest[SHA256_DIGEST_NWORDS] =
	    { SHA256_INITIAL_DIGEST };
	memcpy_fixedlen(digest, hash_initial_digest, sizeof(hash_initial_digest));
}

struct slver {
	uint16_t snum;
	uint8_t ver;
	uint8_t core;
};
struct slver sha256_ctx_mgr_init_base_slver_000002f0;
struct slver sha256_ctx_mgr_init_base_slver = { 0x02f0, 0x00, 0x00 };

struct slver sha256_ctx_mgr_submit_base_slver_000002f1;
struct slver sha256_ctx_mgr_submit_base_slver = { 0x02f1, 0x00, 0x00 };

struct slver sha256_ctx_mgr_flush_base_slver_000002f2;
struct slver sha256_ctx_mgr_flush_base_slver = { 0x02f2, 0x00, 0x00 };