nfs/common/bootp_subr.c

270 static void	allocifctx(struct bootpc_globalcontext *gctx);
287 static int	bootpc_call(struct bootpc_globalcontext *gctx,
294 		    struct bootpc_globalcontext *gctx, struct lwp *td);
298 		    struct bootpc_globalcontext *gctx);
300 static int	bootpc_received(struct bootpc_globalcontext *gctx,
450 allocifctx(struct bootpc_globalcontext *gctx)
455 	ifctx->xid = gctx->xid;
461 	gctx->xid += 0x100;
462 	STAILQ_INSERT_TAIL(&gctx->interfaces, ifctx, next);
496 bootpc_received(struct bootpc_globalcontext *gctx,
508 	(void) bootpc_tag(&gctx->tmptag, &gctx->reply,
509 			  gctx->replylen,
513 	if (gctx->tmptag.badopt != 0)
516 	p = bootpc_tag(&gctx->tmptag, &gctx->reply,
517 		       gctx->replylen, TAG_DHCP_MSGTYPE);
545 	    (bootpc_tag(&gctx->tmptag, &ifctx->reply,
548 	     bootpc_tag(&gctx->tmptag, &gctx->reply,
549 			gctx->replylen,
553 	bcopy(&gctx->reply, &ifctx->reply, gctx->replylen);
554 	ifctx->replylen = gctx->replylen;
572 		p = bootpc_tag(&gctx->tmptag, &ifctx->reply,
574 		if (p != NULL && gctx->tmptag.taglen == 4) {
582 	ifctx->gotrootpath = (bootpc_tag(&gctx->tmptag, &ifctx->reply,
585 	ifctx->gotgw = (bootpc_tag(&gctx->tmptag, &ifctx->reply,
588 	ifctx->gotnetmask = (bootpc_tag(&gctx->tmptag, &ifctx->reply,
595 bootpc_call(struct bootpc_globalcontext *gctx, struct lwp *td)
675 		STAILQ_FOREACH(ifctx, &gctx->interfaces, next) {
677 			    bootpc_tag(&gctx->tmptag, &ifctx->reply,
683 		STAILQ_FOREACH(ifctx, &gctx->interfaces, next) {
788 			aio.iov_base = (void *) &gctx->reply;
789 			aio.iov_len = sizeof(gctx->reply);
796 			auio.uio_resid = sizeof(gctx->reply);
802 			gctx->secs = time_second - gctx->starttime;
803 			STAILQ_FOREACH(ifctx, &gctx->interfaces, next) {
808 				ifctx->call.secs = htons(gctx->secs);
814 			len = sizeof(gctx->reply) - auio.uio_resid;
819 			gctx->replylen = len;
822 			if (gctx->reply.op != BOOTP_REPLY)
826 			STAILQ_FOREACH(ifctx, &gctx->interfaces, next) {
827 				if (gctx->reply.xid != ifctx->call.xid)
831 				if (gctx->reply.hlen != ifctx->call.hlen)
835 				if (bcmp(gctx->reply.chaddr,
844 				s =  bootpc_tag(&gctx->tmptag,
845 						&gctx->reply,
846 						gctx->replylen,
867 				print_in_addr(gctx->reply.siaddr);
868 				if (gctx->reply.giaddr.s_addr !=
871 					print_in_addr(gctx->reply.giaddr);
873 				if (bootpc_received(gctx, ifctx) != 0) {
886 				    gctx->any_root_overrides) {
897 		if (gctx->secs > BOOTP_TIMEOUT && BOOTP_TIMEOUT > 0)
902 		STAILQ_FOREACH(ifctx, &gctx->interfaces, next)
914 			gctx->gotrootpath = gotrootpath;
925 	STAILQ_FOREACH(ifctx, &gctx->interfaces, next)
933 	if (gctx->gotrootpath != 0) {
941 	STAILQ_FOREACH(ifctx, &gctx->interfaces, next)
1023     struct bootpc_globalcontext *gctx, struct lwp *td)
1422     struct bootpc_globalcontext *gctx)
1447 	(void) bootpc_tag(&gctx->tmptag,
1450 	if ((gctx->tmptag.overload & OVERLOAD_SNAME) == 0)
1453 	if ((gctx->tmptag.overload & OVERLOAD_FILE) == 0)
1459 	p = bootpc_tag(&gctx->tag, &ifctx->reply, ifctx->replylen,
1462 		if (gctx->tag.taglen != 4)
1464 			      gctx->tag.taglen);
1472 	p = bootpc_tag(&gctx->tag, &ifctx->reply, ifctx->replylen,
1476 		if (gctx->tag.taglen % 4)
1477 			panic("bootpc: Router Len is %d", gctx->tag.taglen);
1478 		if (gctx->tag.taglen > 0) {
1484 			gctx->gotgw = 1;
1503 		p = bootpc_tag(&gctx->tag, &ifctx->reply, ifctx->replylen,
1515 		if (gctx->setrootfs != NULL) {
1525 			gctx->gotrootpath = 1;
1526 			gctx->setrootfs = ifctx;
1528 			p = bootpc_tag(&gctx->tag, &ifctx->reply,
1539 	p = bootpc_tag(&gctx->tag, &ifctx->reply, ifctx->replylen,
1542 		if (gctx->tag.taglen >= MAXHOSTNAMELEN)
1545 		if (gctx->sethostname != NULL) {
1553 			gctx->sethostname = ifctx;
1556 	p = bootpc_tag(&gctx->tag, &ifctx->reply, ifctx->replylen,
1565 	p = bootpc_tag(&gctx->tag, &ifctx->reply, ifctx->replylen,
1587 	struct bootpc_globalcontext *gctx; 	/* Global BOOTP context */
1612 	gctx = malloc(sizeof(*gctx), M_TEMP, M_WAITOK | M_ZERO);
1613 	STAILQ_INIT(&gctx->interfaces);
1614 	gctx->xid = ~0xFFFF;
1615 	gctx->starttime = time_second;
1623 	gctx->any_root_overrides = 1;
1625 	gctx->any_root_overrides = testenv("vfs.root.mountfrom");
1635 	allocifctx(gctx);
1662 		allocifctx(gctx);
1666 	ifctx = STAILQ_FIRST(&gctx->interfaces);
1710 	if (STAILQ_EMPTY(&gctx->interfaces) ||
1711 	    STAILQ_FIRST(&gctx->interfaces)->ifp == NULL) {
1730 	STAILQ_FOREACH(ifctx, &gctx->interfaces, next)
1733 	STAILQ_FOREACH(ifctx, &gctx->interfaces, next)
1736 	error = bootpc_call(gctx, td);
1743 	STAILQ_FOREACH(ifctx, &gctx->interfaces, next)
1745 			bootpc_decode_reply(nd, ifctx, gctx);
1748 	if (gctx->gotrootpath == 0 && gctx->any_root_overrides == 0)
1752 	STAILQ_FOREACH(ifctx, &gctx->interfaces, next)
1753 		bootpc_adjust_interface(ifctx, gctx, td);
1757 	STAILQ_FOREACH(ifctx, &gctx->interfaces, next)
1761 		STAILQ_FOREACH(ifctx, &gctx->interfaces, next)
1768 	if (gctx->gotrootpath != 0) {
1778 			if (gctx->any_root_overrides == 0)
1797 	while((ifctx = STAILQ_FIRST(&gctx->interfaces)) != NULL) {
1798 		STAILQ_REMOVE_HEAD(&gctx->interfaces, next);
1801 	free(gctx, M_TEMP);