90 static void fio_sha3_init(struct fio_sha3_ctx *sctx, unsigned int digest_sz)  in fio_sha3_init()  argument
92 	memset(sctx->st, 0, sizeof(sctx->st));  in fio_sha3_init()
93 	sctx->md_len = digest_sz;  in fio_sha3_init()
94 	sctx->rsiz = 200 - 2 * digest_sz;  in fio_sha3_init()
95 	sctx->rsizw = sctx->rsiz / 8;  in fio_sha3_init()
96 	sctx->partial = 0;  in fio_sha3_init()
97 	memset(sctx->buf, 0, sizeof(sctx->buf));  in fio_sha3_init()
100 void fio_sha3_224_init(struct fio_sha3_ctx *sctx)  in fio_sha3_224_init()  argument
102 	fio_sha3_init(sctx, SHA3_224_DIGEST_SIZE);  in fio_sha3_224_init()
105 void fio_sha3_256_init(struct fio_sha3_ctx *sctx)  in fio_sha3_256_init()  argument
107 	fio_sha3_init(sctx, SHA3_256_DIGEST_SIZE);  in fio_sha3_256_init()
110 void fio_sha3_384_init(struct fio_sha3_ctx *sctx)  in fio_sha3_384_init()  argument
112 	fio_sha3_init(sctx, SHA3_384_DIGEST_SIZE);  in fio_sha3_384_init()
115 void fio_sha3_512_init(struct fio_sha3_ctx *sctx)  in fio_sha3_512_init()  argument
117 	fio_sha3_init(sctx, SHA3_512_DIGEST_SIZE);  in fio_sha3_512_init()
120 int fio_sha3_update(struct fio_sha3_ctx *sctx, const uint8_t *data,  in fio_sha3_update()  argument
129 	if ((sctx->partial + len) > (sctx->rsiz - 1)) {  in fio_sha3_update()
130 		if (sctx->partial) {  in fio_sha3_update()
131 			done = -sctx->partial;  in fio_sha3_update()
132 			memcpy(sctx->buf + sctx->partial, data,  in fio_sha3_update()
133 			       done + sctx->rsiz);  in fio_sha3_update()
134 			src = sctx->buf;  in fio_sha3_update()
140 			for (i = 0; i < sctx->rsizw; i++)  in fio_sha3_update()
141 				sctx->st[i] ^= ((uint64_t *) src)[i];  in fio_sha3_update()
142 			keccakf(sctx->st);  in fio_sha3_update()
144 			done += sctx->rsiz;  in fio_sha3_update()
146 		} while (done + (sctx->rsiz - 1) < len);  in fio_sha3_update()
148 		sctx->partial = 0;  in fio_sha3_update()
150 	memcpy(sctx->buf + sctx->partial, src, len - done);  in fio_sha3_update()
151 	sctx->partial += (len - done);  in fio_sha3_update()
156 void fio_sha3_final(struct fio_sha3_ctx *sctx)  in fio_sha3_final()  argument
158 	unsigned int i, inlen = sctx->partial;  in fio_sha3_final()
160 	sctx->buf[inlen++] = 0x06;  in fio_sha3_final()
161 	memset(sctx->buf + inlen, 0, sctx->rsiz - inlen);  in fio_sha3_final()
162 	sctx->buf[sctx->rsiz - 1] |= 0x80;  in fio_sha3_final()
164 	for (i = 0; i < sctx->rsizw; i++)  in fio_sha3_final()
165 		sctx->st[i] ^= ((uint64_t *) sctx->buf)[i];  in fio_sha3_final()
167 	keccakf(sctx->st);  in fio_sha3_final()
169 	for (i = 0; i < sctx->rsizw; i++)  in fio_sha3_final()
170 		sctx->st[i] = cpu_to_le64(sctx->st[i]);  in fio_sha3_final()
172 	memcpy(sctx->sha, sctx->st, sctx->md_len);  in fio_sha3_final()