net/mptcp/mptcp_sockopt.c

279 	socklen_t olen, _olen;
285 	olen = sizeof(good_data);
286 	good_data.size_subflow_data = olen;
288 	ret = getsockopt(fd, SOL_MPTCP, optname, &bd, &olen);
290 	assert(olen == sizeof(good_data));
294 	ret = getsockopt(fd, SOL_MPTCP, optname, &bd, &olen);
296 	assert(olen == sizeof(good_data));
302 	_olen = rand() % olen;
303 	olen = _olen;
304 	ret = getsockopt(fd, SOL_MPTCP, optname, &bd, &olen);
305 	assert(ret < 0);	/* bogus olen */
306 	assert(olen == _olen);	/* must be unchanged */
309 	olen = sizeof(good_data);
311 	ret = getsockopt(fd, SOL_MPTCP, optname, &bd, &olen);
315 	olen = sizeof(good_data);
317 	ret = getsockopt(fd, SOL_MPTCP, optname, &bd, &olen);
322 	olen = sizeof(bd);
325 	ret = getsockopt(fd, SOL_MPTCP, optname, &bd, &olen);
328 	/* olen must be truncated to real data size filled by kernel: */
329 	assert(olen == sizeof(good_data));
336 	olen = bd.d.size_subflow_data + 1;
337 	_olen = olen;
343 	assert(olen == _olen);
352 	socklen_t olen;
355 	olen = sizeof(i);
356 	ret = getsockopt(fd, SOL_MPTCP, MPTCP_INFO, &i, &olen);
361 	s->pkt_stats_avail = olen >= sizeof(i);
379 	socklen_t olen;
386 		olen = sizeof(ti);
388 		ret = getsockopt(fd, SOL_MPTCP, MPTCP_TCPINFO, &ti, &olen);
392 		assert(olen <= sizeof(ti));
398 		assert(olen > (socklen_t)sizeof(struct mptcp_subflow_data));
399 		olen -= sizeof(struct mptcp_subflow_data);
400 		assert(olen == ti.d.size_user);
428 	socklen_t olen, rlen, llen;
441 	olen = sizeof(addrs);
443 	ret = getsockopt(fd, SOL_MPTCP, MPTCP_SUBFLOW_ADDRS, &addrs, &olen);
447 	assert(olen <= sizeof(addrs));
453 	assert(olen > (socklen_t)sizeof(struct mptcp_subflow_data));
454 	olen -= sizeof(struct mptcp_subflow_data);
455 	assert(olen == addrs.d.size_user);
479 	olen = sizeof(addrs.d) + sizeof(sa_family_t);
481 	ret = getsockopt(fd, SOL_MPTCP, MPTCP_SUBFLOW_ADDRS, &addrs, &olen);
483 	assert(olen == sizeof(addrs.d) + sizeof(sa_family_t));
500 	socklen_t olen;
512 	olen = data_size;
514 	ret = getsockopt(fd, SOL_MPTCP, MPTCP_FULL_INFO, &mfi, &olen);
523 	assert(olen <= data_size);
537 	assert(olen > (socklen_t)__builtin_offsetof(struct mptcp_full_info, tcp_info));