137 fb64_init(struct fb *fbp)  in fb64_init()  argument
139 	memset((void *)fbp, 0, sizeof(*fbp));  in fb64_init()
140 	fbp->state[0] = fbp->state[1] = FAILED;  in fb64_init()
141 	fbp->fb_feed[0] = IAC;  in fb64_init()
142 	fbp->fb_feed[1] = SB;  in fb64_init()
143 	fbp->fb_feed[2] = TELOPT_ENCRYPT;  in fb64_init()
144 	fbp->fb_feed[3] = ENCRYPT_IS;  in fb64_init()
168 fb64_start(struct fb *fbp, int dir, int server __unused)  in fb64_start()  argument
181 		state = fbp->state[dir-1];  in fb64_start()
187 		state = fbp->state[dir-1];  in fb64_start()
193 		if (!VALIDKEY(fbp->krbdes_key)) {  in fb64_start()
194 			fbp->need_start = 1;  in fb64_start()
204 		DES_random_key((Block *)fbp->temp_feed);  in fb64_start()
205 		DES_ecb_encrypt((Block *)fbp->temp_feed, (Block *)fbp->temp_feed,  in fb64_start()
206 				&fbp->krbdes_sched, 1);  in fb64_start()
207 		p = fbp->fb_feed + 3;  in fb64_start()
212 			if ((*p++ = fbp->temp_feed[x]) == IAC)  in fb64_start()
217 		printsub('>', &fbp->fb_feed[2], p - &fbp->fb_feed[2]);  in fb64_start()
218 		net_write(fbp->fb_feed, p - fbp->fb_feed);  in fb64_start()
223 	return(fbp->state[dir-1] = state);  in fb64_start()
245 fb64_is(unsigned char *data, int cnt, struct fb *fbp)  in fb64_is()  argument
248 	int state = fbp->state[DIR_DECRYPT-1];  in fb64_is()
268 		fb64_stream_iv((void *)data, &fbp->streams[DIR_DECRYPT-1]);  in fb64_is()
270 		p = fbp->fb_feed + 3;  in fb64_is()
276 		printsub('>', &fbp->fb_feed[2], p - &fbp->fb_feed[2]);  in fb64_is()
277 		net_write(fbp->fb_feed, p - fbp->fb_feed);  in fb64_is()
279 		state = fbp->state[DIR_DECRYPT-1] = IN_PROGRESS;  in fb64_is()
295 		p = fbp->fb_feed + 3;  in fb64_is()
301 		printsub('>', &fbp->fb_feed[2], p - &fbp->fb_feed[2]);  in fb64_is()
302 		net_write(fbp->fb_feed, p - fbp->fb_feed);  in fb64_is()
306 	return(fbp->state[DIR_DECRYPT-1] = state);  in fb64_is()
328 fb64_reply(unsigned char *data, int cnt, struct fb *fbp)  in fb64_reply()  argument
330 	int state = fbp->state[DIR_ENCRYPT-1];  in fb64_reply()
337 		fb64_stream_iv(fbp->temp_feed, &fbp->streams[DIR_ENCRYPT-1]);  in fb64_reply()
345 		memset(fbp->temp_feed, 0, sizeof(Block));  in fb64_reply()
346 		fb64_stream_iv(fbp->temp_feed, &fbp->streams[DIR_ENCRYPT-1]);  in fb64_reply()
361 	return(fbp->state[DIR_ENCRYPT-1] = state);  in fb64_reply()
377 fb64_session(Session_Key *key, int server, struct fb *fbp)  in fb64_session()  argument
385 	memmove((void *)fbp->krbdes_key, (void *)key->data, sizeof(Block));  in fb64_session()
387 	fb64_stream_key(fbp->krbdes_key, &fbp->streams[DIR_ENCRYPT-1]);  in fb64_session()
388 	fb64_stream_key(fbp->krbdes_key, &fbp->streams[DIR_DECRYPT-1]);  in fb64_session()
390 	DES_key_sched((Block *)fbp->krbdes_key, &fbp->krbdes_sched);  in fb64_session()
396 	if (fbp->need_start) {  in fb64_session()
397 		fbp->need_start = 0;  in fb64_session()
398 		fb64_start(fbp, DIR_ENCRYPT, server);  in fb64_session()
419 fb64_keyid(int dir, unsigned char *kp, int *lenp, struct fb *fbp)  in fb64_keyid()  argument
421 	int state = fbp->state[dir-1];  in fb64_keyid()
433 	return(fbp->state[dir-1] = state);  in fb64_keyid()