255 static void	allocifctx(struct bootpc_globalcontext *gctx);
267 static int	bootpc_call(struct bootpc_globalcontext *gctx,
274 		    struct bootpc_globalcontext *gctx, struct thread *td);
278 		    struct bootpc_globalcontext *gctx);
280 static int	bootpc_received(struct bootpc_globalcontext *gctx,
339 allocifctx(struct bootpc_globalcontext *gctx)  in allocifctx()  argument
344 	ifctx->xid = gctx->xid;  in allocifctx()
350 	gctx->xid += 0x100;  in allocifctx()
351 	STAILQ_INSERT_TAIL(&gctx->interfaces, ifctx, next);  in allocifctx()
385 bootpc_received(struct bootpc_globalcontext *gctx,  in bootpc_received()  argument
397 	(void) bootpc_tag(&gctx->tmptag, &gctx->reply,  in bootpc_received()
398 			  gctx->replylen,  in bootpc_received()
402 	if (gctx->tmptag.badopt != 0)  in bootpc_received()
405 	p = bootpc_tag(&gctx->tmptag, &gctx->reply,  in bootpc_received()
406 		       gctx->replylen, TAG_DHCP_MSGTYPE);  in bootpc_received()
434 	    (bootpc_tag(&gctx->tmptag, &ifctx->reply,  in bootpc_received()
437 	     bootpc_tag(&gctx->tmptag, &gctx->reply,  in bootpc_received()
438 			gctx->replylen,  in bootpc_received()
442 	bcopy(&gctx->reply, &ifctx->reply, gctx->replylen);  in bootpc_received()
443 	ifctx->replylen = gctx->replylen;  in bootpc_received()
460 		p = bootpc_tag(&gctx->tmptag, &ifctx->reply,  in bootpc_received()
462 		if (p != NULL && gctx->tmptag.taglen == 4) {  in bootpc_received()
470 	ifctx->gotrootpath = (bootpc_tag(&gctx->tmptag, &ifctx->reply,  in bootpc_received()
473 	ifctx->gotgw = (bootpc_tag(&gctx->tmptag, &ifctx->reply,  in bootpc_received()
476 	ifctx->gotnetmask = (bootpc_tag(&gctx->tmptag, &ifctx->reply,  in bootpc_received()
483 bootpc_call(struct bootpc_globalcontext *gctx, struct thread *td)  in bootpc_call()  argument
568 		STAILQ_FOREACH(ifctx, &gctx->interfaces, next) {  in bootpc_call()
570 			    bootpc_tag(&gctx->tmptag, &ifctx->reply,  in bootpc_call()
576 		STAILQ_FOREACH(ifctx, &gctx->interfaces, next) {  in bootpc_call()
682 			aio.iov_base = (caddr_t) &gctx->reply;  in bootpc_call()
683 			aio.iov_len = sizeof(gctx->reply);  in bootpc_call()
690 			auio.uio_resid = sizeof(gctx->reply);  in bootpc_call()
696 			gctx->secs = time_second - gctx->starttime;  in bootpc_call()
697 			STAILQ_FOREACH(ifctx, &gctx->interfaces, next) {  in bootpc_call()
702 				ifctx->call.secs = htons(gctx->secs);  in bootpc_call()
708 			len = sizeof(gctx->reply) - auio.uio_resid;  in bootpc_call()
713 			gctx->replylen = len;  in bootpc_call()
716 			if (gctx->reply.op != BOOTP_REPLY)  in bootpc_call()
720 			STAILQ_FOREACH(ifctx, &gctx->interfaces, next) {  in bootpc_call()
721 				if (gctx->reply.xid != ifctx->call.xid)  in bootpc_call()
725 				if (gctx->reply.hlen != ifctx->call.hlen)  in bootpc_call()
729 				if (bcmp(gctx->reply.chaddr,  in bootpc_call()
738 				s =  bootpc_tag(&gctx->tmptag,  in bootpc_call()
739 						&gctx->reply,  in bootpc_call()
740 						gctx->replylen,  in bootpc_call()
761 				print_in_addr(gctx->reply.siaddr);  in bootpc_call()
762 				if (gctx->reply.giaddr.s_addr !=  in bootpc_call()
765 					print_in_addr(gctx->reply.giaddr);  in bootpc_call()
767 				if (bootpc_received(gctx, ifctx) != 0) {  in bootpc_call()
780 				    gctx->any_root_overrides) {  in bootpc_call()
791 		if (gctx->secs > BOOTP_TIMEOUT && BOOTP_TIMEOUT > 0)  in bootpc_call()
796 		STAILQ_FOREACH(ifctx, &gctx->interfaces, next)  in bootpc_call()
808 			gctx->gotrootpath = gotrootpath;  in bootpc_call()
819 	STAILQ_FOREACH(ifctx, &gctx->interfaces, next)  in bootpc_call()
827 	if (gctx->gotrootpath != 0) {  in bootpc_call()
835 	STAILQ_FOREACH(ifctx, &gctx->interfaces, next)  in bootpc_call()
917     struct bootpc_globalcontext *gctx, struct thread *td)  in bootpc_adjust_interface()  argument
1329     struct bootpc_globalcontext *gctx)  in bootpc_decode_reply()  argument
1354 	(void) bootpc_tag(&gctx->tmptag,  in bootpc_decode_reply()
1357 	if ((gctx->tmptag.overload & OVERLOAD_SNAME) == 0)  in bootpc_decode_reply()
1360 	if ((gctx->tmptag.overload & OVERLOAD_FILE) == 0)  in bootpc_decode_reply()
1366 	p = bootpc_tag(&gctx->tag, &ifctx->reply, ifctx->replylen,  in bootpc_decode_reply()
1369 		if (gctx->tag.taglen != 4)  in bootpc_decode_reply()
1371 			      gctx->tag.taglen);  in bootpc_decode_reply()
1379 	p = bootpc_tag(&gctx->tag, &ifctx->reply, ifctx->replylen,  in bootpc_decode_reply()
1383 		if (gctx->tag.taglen % 4)  in bootpc_decode_reply()
1384 			panic("bootpc: Router Len is %d", gctx->tag.taglen);  in bootpc_decode_reply()
1385 		if (gctx->tag.taglen > 0) {  in bootpc_decode_reply()
1391 			gctx->gotgw = 1;  in bootpc_decode_reply()
1410 		p = bootpc_tag(&gctx->tag, &ifctx->reply, ifctx->replylen,  in bootpc_decode_reply()
1422 		if (gctx->setrootfs != NULL) {  in bootpc_decode_reply()
1432 			gctx->gotrootpath = 1;  in bootpc_decode_reply()
1433 			gctx->setrootfs = ifctx;  in bootpc_decode_reply()
1435 			p = bootpc_tag(&gctx->tag, &ifctx->reply,  in bootpc_decode_reply()
1446 	p = bootpc_tag(&gctx->tag, &ifctx->reply, ifctx->replylen,  in bootpc_decode_reply()
1449 		if (gctx->tag.taglen >= MAXHOSTNAMELEN)  in bootpc_decode_reply()
1452 		if (gctx->sethostname != NULL) {  in bootpc_decode_reply()
1460 			gctx->sethostname = ifctx;  in bootpc_decode_reply()
1463 	p = bootpc_tag(&gctx->tag, &ifctx->reply, ifctx->replylen,  in bootpc_decode_reply()
1472 	p = bootpc_tag(&gctx->tag, &ifctx->reply, ifctx->replylen,  in bootpc_decode_reply()
1516 	struct bootpc_globalcontext *gctx; 	/* Global BOOTP context */  in bootpc_init()  local
1557 	gctx = malloc(sizeof(*gctx), M_TEMP, M_WAITOK | M_ZERO);  in bootpc_init()
1558 	STAILQ_INIT(&gctx->interfaces);  in bootpc_init()
1559 	gctx->xid = ~0xFFFF;  in bootpc_init()
1560 	gctx->starttime = time_second;  in bootpc_init()
1568 	gctx->any_root_overrides = 1;  in bootpc_init()
1570 	gctx->any_root_overrides = testenv("vfs.root.mountfrom");  in bootpc_init()
1580 	allocifctx(gctx);  in bootpc_init()
1602 		allocifctx(gctx);  in bootpc_init()
1606 	ifctx = STAILQ_FIRST(&gctx->interfaces);  in bootpc_init()
1644 	if (STAILQ_EMPTY(&gctx->interfaces) ||  in bootpc_init()
1645 	    STAILQ_FIRST(&gctx->interfaces)->ifp == NULL) {  in bootpc_init()
1664 	STAILQ_FOREACH(ifctx, &gctx->interfaces, next)  in bootpc_init()
1667 	STAILQ_FOREACH(ifctx, &gctx->interfaces, next)  in bootpc_init()
1670 	error = bootpc_call(gctx, td);  in bootpc_init()
1677 	STAILQ_FOREACH(ifctx, &gctx->interfaces, next)  in bootpc_init()
1679 			bootpc_decode_reply(nd, ifctx, gctx);  in bootpc_init()
1682 	if (gctx->gotrootpath == 0 && gctx->any_root_overrides == 0)  in bootpc_init()
1686 	STAILQ_FOREACH(ifctx, &gctx->interfaces, next)  in bootpc_init()
1687 		bootpc_adjust_interface(ifctx, gctx, td);  in bootpc_init()
1691 	STAILQ_FOREACH(ifctx, &gctx->interfaces, next)  in bootpc_init()
1695 		STAILQ_FOREACH(ifctx, &gctx->interfaces, next)  in bootpc_init()
1702 	if (gctx->gotrootpath != 0) {  in bootpc_init()
1717 			if (gctx->any_root_overrides == 0)  in bootpc_init()
1736 	while((ifctx = STAILQ_FIRST(&gctx->interfaces)) != NULL) {  in bootpc_init()
1737 		STAILQ_REMOVE_HEAD(&gctx->interfaces, next);  in bootpc_init()
1740 	free(gctx, M_TEMP);  in bootpc_init()