165 static void sha256_init(struct sha256_state *md);
166 static int sha256_process(struct sha256_state *md, const unsigned char *in,
168 static int sha256_done(struct sha256_state *md, unsigned char *out);
231 static int sha256_compress(struct sha256_state *md, unsigned char *buf)  in sha256_compress()  argument
239 		S[i] = md->state[i];  in sha256_compress()
267 		md->state[i] = md->state[i] + S[i];  in sha256_compress()
274 static void sha256_init(struct sha256_state *md)  in sha256_init()  argument
276 	md->curlen = 0;  in sha256_init()
277 	md->length = 0;  in sha256_init()
278 	md->state[0] = 0x6A09E667UL;  in sha256_init()
279 	md->state[1] = 0xBB67AE85UL;  in sha256_init()
280 	md->state[2] = 0x3C6EF372UL;  in sha256_init()
281 	md->state[3] = 0xA54FF53AUL;  in sha256_init()
282 	md->state[4] = 0x510E527FUL;  in sha256_init()
283 	md->state[5] = 0x9B05688CUL;  in sha256_init()
284 	md->state[6] = 0x1F83D9ABUL;  in sha256_init()
285 	md->state[7] = 0x5BE0CD19UL;  in sha256_init()
295 static int sha256_process(struct sha256_state *md, const unsigned char *in,  in sha256_process()  argument
301 	if (md->curlen > sizeof(md->buf))  in sha256_process()
305 		if (md->curlen == 0 && inlen >= block_size) {  in sha256_process()
306 			if (sha256_compress(md, (unsigned char *) in) < 0)  in sha256_process()
308 			md->length += block_size * 8;  in sha256_process()
312 			n = MIN(inlen, (block_size - md->curlen));  in sha256_process()
313 			memcpy(md->buf + md->curlen, in, n);  in sha256_process()
314 			md->curlen += n;  in sha256_process()
317 			if (md->curlen == block_size) {  in sha256_process()
318 				if (sha256_compress(md, md->buf) < 0)  in sha256_process()
320 				md->length += 8 * block_size;  in sha256_process()
321 				md->curlen = 0;  in sha256_process()
336 static int sha256_done(struct sha256_state *md, unsigned char *out)  in sha256_done()  argument
340 	if (md->curlen >= sizeof(md->buf))  in sha256_done()
344 	md->length += md->curlen * 8;  in sha256_done()
347 	md->buf[md->curlen++] = (unsigned char) 0x80;  in sha256_done()
353 	if (md->curlen > 56) {  in sha256_done()
354 		while (md->curlen < 64) {  in sha256_done()
355 			md->buf[md->curlen++] = (unsigned char) 0;  in sha256_done()
357 		sha256_compress(md, md->buf);  in sha256_done()
358 		md->curlen = 0;  in sha256_done()
362 	while (md->curlen < 56) {  in sha256_done()
363 		md->buf[md->curlen++] = (unsigned char) 0;  in sha256_done()
367 	WPA_PUT_BE64(md->buf + 56, md->length);  in sha256_done()
368 	sha256_compress(md, md->buf);  in sha256_done()
372 		WPA_PUT_BE32(out + (4 * i), md->state[i]);  in sha256_done()