165     struct sysctl_req *req, struct rm_priotracker *tracker)  in sysctl_root_handler_locked()  argument
184 	error = oid->oid_handler(oid, arg1, arg2, req);  in sysctl_root_handler_locked()
208 	struct sysctl_req req;  in sysctl_load_tunable_by_oid_locked()  local
234 	memset(&req, 0, sizeof(req));  in sysctl_load_tunable_by_oid_locked()
236 	req.td = curthread;  in sysctl_load_tunable_by_oid_locked()
237 	req.oldfunc = sysctl_old_kernel;  in sysctl_load_tunable_by_oid_locked()
238 	req.newfunc = sysctl_new_kernel;  in sysctl_load_tunable_by_oid_locked()
239 	req.lock = REQ_UNWIRED;  in sysctl_load_tunable_by_oid_locked()
246 		req.newlen = size;  in sysctl_load_tunable_by_oid_locked()
247 		req.newptr = data;  in sysctl_load_tunable_by_oid_locked()
253 		req.newlen = size;  in sysctl_load_tunable_by_oid_locked()
254 		req.newptr = data;  in sysctl_load_tunable_by_oid_locked()
260 		req.newlen = size;  in sysctl_load_tunable_by_oid_locked()
261 		req.newptr = data;  in sysctl_load_tunable_by_oid_locked()
267 		req.newlen = size;  in sysctl_load_tunable_by_oid_locked()
268 		req.newptr = data;  in sysctl_load_tunable_by_oid_locked()
274 		req.newlen = size;  in sysctl_load_tunable_by_oid_locked()
275 		req.newptr = data;  in sysctl_load_tunable_by_oid_locked()
281 		req.newlen = size;  in sysctl_load_tunable_by_oid_locked()
282 		req.newptr = data;  in sysctl_load_tunable_by_oid_locked()
288 		req.newlen = size;  in sysctl_load_tunable_by_oid_locked()
289 		req.newptr = data;  in sysctl_load_tunable_by_oid_locked()
295 		req.newlen = size;  in sysctl_load_tunable_by_oid_locked()
296 		req.newptr = data;  in sysctl_load_tunable_by_oid_locked()
302 		req.newlen = size;  in sysctl_load_tunable_by_oid_locked()
303 		req.newptr = data;  in sysctl_load_tunable_by_oid_locked()
309 		req.newlen = size;  in sysctl_load_tunable_by_oid_locked()
310 		req.newptr = data;  in sysctl_load_tunable_by_oid_locked()
316 		req.newlen = size;  in sysctl_load_tunable_by_oid_locked()
317 		req.newptr = data;  in sysctl_load_tunable_by_oid_locked()
323 		req.newlen = size;  in sysctl_load_tunable_by_oid_locked()
324 		req.newptr = data;  in sysctl_load_tunable_by_oid_locked()
330 		req.newlen = strlen(penv);  in sysctl_load_tunable_by_oid_locked()
331 		req.newptr = penv;  in sysctl_load_tunable_by_oid_locked()
337 	    oidp->oid_arg2, &req, NULL);  in sysctl_load_tunable_by_oid_locked()
1021 	error = priv_check(req->td, PRIV_SYSCTL_DEBUG);  in sysctl_sysctl_debug()
1045 	error = sysctl_wire_old_buffer(req, 0);  in sysctl_sysctl_name()
1053 			if (req->oldidx)  in sysctl_sysctl_name()
1054 				error = SYSCTL_OUT(req, ".", 1);  in sysctl_sysctl_name()
1056 				error = SYSCTL_OUT(req, buf, strlen(buf));  in sysctl_sysctl_name()
1068 			if (req->oldidx)  in sysctl_sysctl_name()
1069 				error = SYSCTL_OUT(req, ".", 1);  in sysctl_sysctl_name()
1071 				error = SYSCTL_OUT(req, oid->oid_name,  in sysctl_sysctl_name()
1090 	error = SYSCTL_OUT(req, "", 1);  in sysctl_sysctl_name()
1265 	error = SYSCTL_OUT(req, next, len * sizeof (int));  in sysctl_sysctl_next()
1327 	if (!req->newlen)   in sysctl_sysctl_name2oid()
1329 	if (req->newlen >= MAXPATHLEN)	/* XXX arbitrary, undocumented */  in sysctl_sysctl_name2oid()
1333 	if (req->newlen >= sizeof(buf))  in sysctl_sysctl_name2oid()
1334 		p = malloc(req->newlen+1, M_SYSCTL, M_WAITOK);  in sysctl_sysctl_name2oid()
1336 	error = SYSCTL_IN(req, p, req->newlen);  in sysctl_sysctl_name2oid()
1343 	p [req->newlen] = '\0';  in sysctl_sysctl_name2oid()
1355 	error = SYSCTL_OUT(req, oid, len * sizeof *oid);  in sysctl_sysctl_name2oid()
1374 	error = sysctl_wire_old_buffer(req, 0);  in sysctl_sysctl_oidfmt()
1379 	error = sysctl_find_oid(arg1, arg2, &oid, NULL, req);  in sysctl_sysctl_oidfmt()
1387 	error = SYSCTL_OUT(req, &oid->oid_kind, sizeof(oid->oid_kind));  in sysctl_sysctl_oidfmt()
1390 	error = SYSCTL_OUT(req, oid->oid_fmt, strlen(oid->oid_fmt) + 1);  in sysctl_sysctl_oidfmt()
1406 	error = sysctl_wire_old_buffer(req, 0);  in sysctl_sysctl_oiddescr()
1411 	error = sysctl_find_oid(arg1, arg2, &oid, NULL, req);  in sysctl_sysctl_oiddescr()
1419 	error = SYSCTL_OUT(req, oid->oid_descr, strlen(oid->oid_descr) + 1);  in sysctl_sysctl_oiddescr()
1435 	error = sysctl_wire_old_buffer(req, 0);  in sysctl_sysctl_oidlabel()
1440 	error = sysctl_find_oid(arg1, arg2, &oid, NULL, req);  in sysctl_sysctl_oidlabel()
1448 	error = SYSCTL_OUT(req, oid->oid_label, strlen(oid->oid_label) + 1);  in sysctl_sysctl_oidlabel()
1482 	error = SYSCTL_OUT(req, &temp, sizeof(temp));  in sysctl_handle_bool()
1483 	if (error || !req->newptr)  in sysctl_handle_bool()
1489 		error = SYSCTL_IN(req, &temp, sizeof(temp));  in sysctl_handle_bool()
1516 	error = SYSCTL_OUT(req, &tmpout, sizeof(tmpout));  in sysctl_handle_8()
1518 	if (error || !req->newptr)  in sysctl_handle_8()
1524 		error = SYSCTL_IN(req, arg1, sizeof(tmpout));  in sysctl_handle_8()
1548 	error = SYSCTL_OUT(req, &tmpout, sizeof(tmpout));  in sysctl_handle_16()
1550 	if (error || !req->newptr)  in sysctl_handle_16()
1556 		error = SYSCTL_IN(req, arg1, sizeof(tmpout));  in sysctl_handle_16()
1580 	error = SYSCTL_OUT(req, &tmpout, sizeof(tmpout));  in sysctl_handle_32()
1582 	if (error || !req->newptr)  in sysctl_handle_32()
1588 		error = SYSCTL_IN(req, arg1, sizeof(tmpout));  in sysctl_handle_32()
1611 	error = SYSCTL_OUT(req, &tmpout, sizeof(int));  in sysctl_handle_int()
1613 	if (error || !req->newptr)  in sysctl_handle_int()
1619 		error = SYSCTL_IN(req, arg1, sizeof(int));  in sysctl_handle_int()
1636 	error = sysctl_handle_int(oidp, &s, 0, req);  in sysctl_msec_to_ticks()
1637 	if (error || !req->newptr)  in sysctl_msec_to_ticks()
1672 	if (req->flags & SCTL_MASK32) {  in sysctl_handle_long()
1674 		error = SYSCTL_OUT(req, &tmpint, sizeof(int));  in sysctl_handle_long()
1677 		error = SYSCTL_OUT(req, &tmplong, sizeof(long));  in sysctl_handle_long()
1679 	if (error || !req->newptr)  in sysctl_handle_long()
1685 	else if (req->flags & SCTL_MASK32) {  in sysctl_handle_long()
1686 		error = SYSCTL_IN(req, &tmpint, sizeof(int));  in sysctl_handle_long()
1691 		error = SYSCTL_IN(req, arg1, sizeof(long));  in sysctl_handle_long()
1714 	error = SYSCTL_OUT(req, &tmpout, sizeof(uint64_t));  in sysctl_handle_64()
1716 	if (error || !req->newptr)  in sysctl_handle_64()
1722 		error = SYSCTL_IN(req, arg1, sizeof(uint64_t));  in sysctl_handle_64()
1754 	if (req->oldptr != NULL) {  in sysctl_handle_string()
1766 		error = SYSCTL_OUT(req, tmparg, outlen);  in sysctl_handle_string()
1776 		error = SYSCTL_OUT(req, NULL, outlen);  in sysctl_handle_string()
1778 	if (error || !req->newptr)  in sysctl_handle_string()
1781 	if (req->newlen - req->newidx >= arg2 ||  in sysctl_handle_string()
1782 	    req->newlen - req->newidx < 0) {  in sysctl_handle_string()
1784 	} else if (req->newlen - req->newidx == 0) {  in sysctl_handle_string()
1789 		arg2 = req->newlen - req->newidx;  in sysctl_handle_string()
1792 		error = SYSCTL_IN(req, tmparg, arg2);  in sysctl_handle_string()
1803 		req->newidx += arg2;  in sysctl_handle_string()
1828 	req2 = *req;  in sysctl_handle_opaque()
1831 	error = SYSCTL_OUT(req, arg1, arg2);  in sysctl_handle_opaque()
1836 		*req = req2;  in sysctl_handle_opaque()
1840 	error = SYSCTL_IN(req, arg1, arg2);  in sysctl_handle_opaque()
1858 	error = sysctl_handle_64(oidp, &sb, 0, req);  in sysctl_usec_to_sbintime()
1859 	if (error || !req->newptr)  in sysctl_usec_to_sbintime()
1881 	error = sysctl_handle_64(oidp, &sb, 0, req);  in sysctl_msec_to_sbintime()
1882 	if (error || !req->newptr)  in sysctl_msec_to_sbintime()
1904 	error = sysctl_handle_int(oidp, &secs, 0, req);  in sysctl_sec_to_timeval()
1905 	if (error || req->newptr == NULL)  in sysctl_sec_to_timeval()
1920 sysctl_old_kernel(struct sysctl_req *req, const void *p, size_t l)  in sysctl_old_kernel()  argument
1924 	if (req->oldptr) {  in sysctl_old_kernel()
1926 		if (req->oldlen <= req->oldidx)  in sysctl_old_kernel()
1929 			if (i > req->oldlen - req->oldidx)  in sysctl_old_kernel()
1930 				i = req->oldlen - req->oldidx;  in sysctl_old_kernel()
1932 			bcopy(p, (char *)req->oldptr + req->oldidx, i);  in sysctl_old_kernel()
1934 	req->oldidx += l;  in sysctl_old_kernel()
1935 	if (req->oldptr && i != l)  in sysctl_old_kernel()
1941 sysctl_new_kernel(struct sysctl_req *req, void *p, size_t l)  in sysctl_new_kernel()  argument
1943 	if (!req->newptr)  in sysctl_new_kernel()
1945 	if (req->newlen - req->newidx < l)  in sysctl_new_kernel()
1947 	bcopy((const char *)req->newptr + req->newidx, p, l);  in sysctl_new_kernel()
1948 	req->newidx += l;  in sysctl_new_kernel()
1957 	struct sysctl_req req;  in kernel_sysctl()  local
1959 	bzero(&req, sizeof req);  in kernel_sysctl()
1961 	req.td = td;  in kernel_sysctl()
1962 	req.flags = flags;  in kernel_sysctl()
1965 		req.oldlen = *oldlenp;  in kernel_sysctl()
1967 	req.validlen = req.oldlen;  in kernel_sysctl()
1970 		req.oldptr= old;  in kernel_sysctl()
1974 		req.newlen = newlen;  in kernel_sysctl()
1975 		req.newptr = new;  in kernel_sysctl()
1978 	req.oldfunc = sysctl_old_kernel;  in kernel_sysctl()
1979 	req.newfunc = sysctl_new_kernel;  in kernel_sysctl()
1980 	req.lock = REQ_UNWIRED;  in kernel_sysctl()
1982 	error = sysctl_root(0, name, namelen, &req);  in kernel_sysctl()
1984 	if (req.lock == REQ_WIRED && req.validlen > 0)  in kernel_sysctl()
1985 		vsunlock(req.oldptr, req.validlen);  in kernel_sysctl()
1991 		if (req.oldptr && req.oldidx > req.validlen)  in kernel_sysctl()
1992 			*retval = req.validlen;  in kernel_sysctl()
1994 			*retval = req.oldidx;  in kernel_sysctl()
2025 sysctl_old_user(struct sysctl_req *req, const void *p, size_t l)  in sysctl_old_user()  argument
2030 	origidx = req->oldidx;  in sysctl_old_user()
2031 	req->oldidx += l;  in sysctl_old_user()
2032 	if (req->oldptr == NULL)  in sysctl_old_user()
2039 	if (req->lock != REQ_WIRED)  in sysctl_old_user()
2043 	len = req->validlen;  in sysctl_old_user()
2049 		if (req->lock == REQ_WIRED) {  in sysctl_old_user()
2050 			error = copyout_nofault(p, (char *)req->oldptr +  in sysctl_old_user()
2053 			error = copyout(p, (char *)req->oldptr + origidx, i);  in sysctl_old_user()
2063 sysctl_new_user(struct sysctl_req *req, void *p, size_t l)  in sysctl_new_user()  argument
2067 	if (!req->newptr)  in sysctl_new_user()
2069 	if (req->newlen - req->newidx < l)  in sysctl_new_user()
2073 	error = copyin((const char *)req->newptr + req->newidx, p, l);  in sysctl_new_user()
2074 	req->newidx += l;  in sysctl_new_user()
2083 sysctl_wire_old_buffer(struct sysctl_req *req, size_t len)  in sysctl_wire_old_buffer()  argument
2088 	wiredlen = (len > 0 && len < req->oldlen) ? len : req->oldlen;  in sysctl_wire_old_buffer()
2090 	if (req->lock != REQ_WIRED && req->oldptr &&  in sysctl_wire_old_buffer()
2091 	    req->oldfunc == sysctl_old_user) {  in sysctl_wire_old_buffer()
2093 			ret = vslock(req->oldptr, wiredlen);  in sysctl_wire_old_buffer()
2100 		req->lock = REQ_WIRED;  in sysctl_wire_old_buffer()
2101 		req->validlen = wiredlen;  in sysctl_wire_old_buffer()
2108     int *nindx, struct sysctl_req *req)  in sysctl_find_oid()  argument
2166 	error = sysctl_find_oid(arg1, arg2, &oid, &indx, req);  in sysctl_root()
2183 	if (req->newptr && !(oid->oid_kind & CTLFLAG_WR)) {  in sysctl_root()
2188 	KASSERT(req->td != NULL, ("sysctl_root(): req->td == NULL"));  in sysctl_root()
2195 	if (IN_CAPABILITY_MODE(req->td)) {  in sysctl_root()
2196 		if ((req->oldptr && !(oid->oid_kind & CTLFLAG_CAPRD)) ||  in sysctl_root()
2197 		    (req->newptr && !(oid->oid_kind & CTLFLAG_CAPWR))) {  in sysctl_root()
2205 	if (req->newptr && (oid->oid_kind & CTLFLAG_SECURE)) {  in sysctl_root()
2207 		error = securelevel_gt(req->td->td_ucred, lvl);  in sysctl_root()
2213 	if (req->newptr && !(oid->oid_kind & CTLFLAG_ANYBODY)) {  in sysctl_root()
2220 		     prison_owns_vnet(req->td->td_ucred))  in sysctl_root()
2225 		error = priv_check(req->td, priv);  in sysctl_root()
2243 	error = mac_system_check_sysctl(req->td->td_ucred, oid, arg1, arg2,  in sysctl_root()
2244 	    req);  in sysctl_root()
2252 	error = sysctl_root_handler_locked(oid, arg1, arg2, req, &tracker);  in sysctl_root()
2369 	struct sysctl_req req;  in userland_sysctl()  local
2371 	bzero(&req, sizeof req);  in userland_sysctl()
2373 	req.td = td;  in userland_sysctl()
2374 	req.flags = flags;  in userland_sysctl()
2378 			req.oldlen = *oldlenp;  in userland_sysctl()
2380 			error = copyin(oldlenp, &req.oldlen, sizeof(*oldlenp));  in userland_sysctl()
2385 	req.validlen = req.oldlen;  in userland_sysctl()
2386 	req.oldptr = old;  in userland_sysctl()
2389 		req.newlen = newlen;  in userland_sysctl()
2390 		req.newptr = new;  in userland_sysctl()
2393 	req.oldfunc = sysctl_old_user;  in userland_sysctl()
2394 	req.newfunc = sysctl_new_user;  in userland_sysctl()
2395 	req.lock = REQ_UNWIRED;  in userland_sysctl()
2402 	if (req.oldptr && req.oldlen > 4 * PAGE_SIZE) {  in userland_sysctl()
2409 		req.oldidx = 0;  in userland_sysctl()
2410 		req.newidx = 0;  in userland_sysctl()
2411 		error = sysctl_root(0, name, namelen, &req);  in userland_sysctl()
2419 	if (req.lock == REQ_WIRED && req.validlen > 0)  in userland_sysctl()
2420 		vsunlock(req.oldptr, req.validlen);  in userland_sysctl()
2428 		if (req.oldptr && req.oldidx > req.validlen)  in userland_sysctl()
2429 			*retval = req.validlen;  in userland_sysctl()
2431 			*retval = req.oldidx;  in userland_sysctl()
2443 	struct sysctl_req *req = arg;  in sbuf_sysctl_drain()  local
2446 	error = SYSCTL_OUT(req, data, len);  in sbuf_sysctl_drain()
2453     struct sysctl_req *req)  in sbuf_new_for_sysctl()  argument
2460 	sbuf_set_drain(s, sbuf_sysctl_drain, req);  in sbuf_new_for_sysctl()
2534 sysctl_old_ddb(struct sysctl_req *req, const void *ptr, size_t len)  in sysctl_old_ddb()  argument
2654 	req->oldidx += slen;  in sysctl_old_ddb()
2662 sysctl_new_ddb(struct sysctl_req *req, void *p, size_t l)  in sysctl_new_ddb()  argument
2665 	if (!req->newptr)  in sysctl_new_ddb()
2681 	struct sysctl_req req;  in db_sysctl()  local
2685 	bzero(&req, sizeof req);  in db_sysctl()
2686 	req.td = kdb_thread;  in db_sysctl()
2687 	req.oldfunc = sysctl_old_ddb;  in db_sysctl()
2688 	req.newfunc = sysctl_new_ddb;  in db_sysctl()
2689 	req.lock = REQ_UNWIRED;  in db_sysctl()
2691 		req.oldlen = *oldlenp;  in db_sysctl()
2693 	req.validlen = req.oldlen;  in db_sysctl()
2695 		req.oldptr = old;  in db_sysctl()
2703 	error = sysctl_root(0, name, namelen, &req);  in db_sysctl()
2710 		if (req.oldptr && req.oldidx > req.validlen)  in db_sysctl()
2711 			*retval = req.validlen;  in db_sysctl()
2713 			*retval = req.oldidx;  in db_sysctl()