2 * Copyright 2000, International Business Machines Corporation and others.
5 * This software has been released under the terms of the IBM Public
6 * License. For details, see the LICENSE file in the top-level source
7 * directory or online at http://www.openafs.org/dl/license10.html
11 * rx_kcommon.c - Common kernel RX code for all system types.
14 #include <afsconfig.h>
15 #include "afs/param.h"
20 #include "rx/rx_kcommon.h"
22 #ifdef AFS_HPUX110_ENV
28 #ifndef RXK_LISTENER_ENV
29 int (*rxk_PacketArrivalProc) (struct rx_packet * ahandle, struct sockaddr_in * afrom, struct socket *arock, afs_int32 asize); /* set to packet allocation procedure */
30 int (*rxk_GetPacketProc) (struct rx_packet **ahandle, int asize);
33 osi_socket *rxk_NewSocketHost(afs_uint32 ahost, short aport);
34 extern struct interfaceAddr afs_cb_interface;
36 rxk_ports_t rxk_ports;
37 rxk_portRocks_t rxk_portRocks;
41 #if !defined(AFS_SUN5_ENV) && !defined(AFS_SGI62_ENV)
42 #define ADDRSPERSITE 16
43 static afs_uint32 myNetAddrs[ADDRSPERSITE];
44 static int myNetMTUs[ADDRSPERSITE];
45 static int numMyNetAddrs = 0;
48 #if defined(AFS_DARWIN80_ENV)
49 #define sobind sock_bind
50 #define soclose sock_close
53 /* add a port to the monitored list, port # is in network order */
55 rxk_AddPort(u_short aport, char *arock)
58 unsigned short *tsp, ts;
61 zslot = -1; /* look for an empty slot simultaneously */
62 for (i = 0, tsp = rxk_ports; i < MAXRXPORTS; i++, tsp++) {
63 if (((ts = *tsp) == 0) && (zslot == -1))
69 /* otherwise allocate a new port slot */
71 return E2BIG; /* all full */
72 rxk_ports[zslot] = aport;
73 rxk_portRocks[zslot] = arock;
77 /* remove as port from the monitored list, port # is in network order */
79 rxk_DelPort(u_short aport)
82 register unsigned short *tsp;
84 for (i = 0, tsp = rxk_ports; i < MAXRXPORTS; i++, tsp++) {
86 /* found it, adjust ref count and free the port reference if all gone */
91 /* otherwise port not found */
96 rxk_shutdownPorts(void)
99 for (i = 0; i < MAXRXPORTS; i++) {
102 #if ! defined(AFS_SUN5_ENV) && ! defined(UKERNEL) && ! defined(RXK_LISTENER_ENV)
103 soclose((struct socket *)rxk_portRocks[i]);
105 rxk_portRocks[i] = NULL;
111 rxi_GetHostUDPSocket(u_int host, u_short port)
114 sockp = (osi_socket *)rxk_NewSocketHost(host, port);
115 if (sockp == (osi_socket *)0)
116 return OSI_NULLSOCKET;
117 rxk_AddPort(port, (char *)sockp);
118 return (osi_socket) sockp;
122 rxi_GetUDPSocket(u_short port)
124 return rxi_GetHostUDPSocket(htonl(INADDR_ANY), port);
128 osi_Panic(msg, a1, a2, a3)
132 msg = "Unknown AFS panic";
134 dpf((msg, a1, a2, a3));
135 #ifdef AFS_LINUX24_ENV
143 * osi_utoa() - write the NUL-terminated ASCII decimal form of the given
144 * unsigned long value into the given buffer. Returns 0 on success,
145 * and a value less than 0 on failure. The contents of the buffer is
146 * defined only on success.
150 osi_utoa(char *buf, size_t len, unsigned long val)
152 long k; /* index of first byte of string value */
154 /* we definitely need room for at least one digit and NUL */
160 /* compute the string form from the high end of the buffer */
163 for (k = len - 2; k >= 0; k--) {
164 buf[k] = val % 10 + '0';
171 /* did we finish converting val to string form? */
177 /* this should never happen */
183 /* this should never happen */
189 /* if necessary, relocate string to beginning of buf[] */
194 * We need to achieve the effect of calling
196 * memmove(buf, &buf[k], len - k);
198 * However, since memmove() is not available in all
199 * kernels, we explicitly do an appropriate copy.
205 while ((*dst++ = *src++) != '\0')
213 * osi_AssertFailK() -- used by the osi_Assert() macro.
215 * It essentially does
217 * osi_Panic("assertion failed: %s, file: %s, line: %d", expr, file, line);
219 * Since the kernel version of osi_Panic() only passes its first
220 * argument to the native panic(), we construct a single string and hand
221 * that to osi_Panic().
224 osi_AssertFailK(const char *expr, const char *file, int line)
226 static const char msg0[] = "assertion failed: ";
227 static const char msg1[] = ", file: ";
228 static const char msg2[] = ", line: ";
229 static const char msg3[] = "\n";
232 * These buffers add up to 1K, which is a pleasantly nice round
233 * value, but probably not vital.
238 /* check line number conversion */
240 if (osi_utoa(linebuf, sizeof linebuf, line) < 0) {
241 osi_Panic("osi_AssertFailK: error in osi_utoa()\n");
246 #define ADDBUF(BUF, STR) \
247 if (strlen(BUF) + strlen((char *)(STR)) + 1 <= sizeof BUF) { \
248 strcat(BUF, (char *)(STR)); \
257 ADDBUF(buf, linebuf);
266 /* This is the server process request loop. Kernel server
267 * processes never become listener threads */
273 rxi_MorePackets(rx_maxReceiveWindow + 2); /* alloc more packets */
274 rxi_dataQuota += rx_initSendWindow; /* Reserve some pkts for hard times */
275 /* threadID is used for making decisions in GetCall. Get it by bumping
276 * number of threads handling incoming calls */
277 threadID = rxi_availProcs++;
279 #ifdef RX_ENABLE_LOCKS
281 #endif /* RX_ENABLE_LOCKS */
282 rxi_ServerProc(threadID, NULL, NULL);
283 #ifdef RX_ENABLE_LOCKS
285 #endif /* RX_ENABLE_LOCKS */
287 #endif /* !UKERNEL */
289 #ifndef RXK_LISTENER_ENV
290 /* asize includes the Rx header */
292 MyPacketProc(struct rx_packet **ahandle, int asize)
294 struct rx_packet *tp;
296 /* If this is larger than we expected, increase rx_maxReceiveDataSize */
297 /* If we can't scrounge enough cbufs, then we have to drop the packet,
298 * but we should set a flag so we magic up some more at our leisure.
301 if ((asize >= 0) && (asize <= RX_MAX_PACKET_SIZE)) {
302 tp = rxi_AllocPacket(RX_PACKET_CLASS_RECEIVE);
303 if (tp && (tp->length + RX_HEADER_SIZE) < asize) {
305 rxi_AllocDataBuf(tp, asize - (tp->length + RX_HEADER_SIZE),
306 RX_PACKET_CLASS_RECV_CBUF)) {
309 MUTEX_ENTER(&rx_stats_mutex);
310 rx_stats.noPacketBuffersOnRead++;
311 MUTEX_EXIT(&rx_stats_mutex);
316 * XXX if packet is too long for our buffer,
317 * should do this at a higher layer and let other
318 * end know we're losing.
320 MUTEX_ENTER(&rx_stats_mutex);
321 rx_stats.bogusPacketOnRead++;
322 MUTEX_EXIT(&rx_stats_mutex);
323 /* I DON"T LIKE THIS PRINTF -- PRINTFS MAKE THINGS VERY VERY SLOOWWW */
324 dpf(("rx: packet dropped: bad ulen=%d\n", asize));
330 /* otherwise we have a packet, set appropriate values */
336 MyArrivalProc(struct rx_packet *ahandle,
337 struct sockaddr_in *afrom,
338 struct socket *arock,
341 /* handle basic rx packet */
342 ahandle->length = asize - RX_HEADER_SIZE;
343 rxi_DecodePacketHeader(ahandle);
345 rxi_ReceivePacket(ahandle, arock,
346 afrom->sin_addr.s_addr, afrom->sin_port, NULL,
349 /* free the packet if it has been returned */
351 rxi_FreePacket(ahandle);
354 #endif /* !RXK_LISTENER_ENV */
357 rxi_StartListener(void)
359 /* if kernel, give name of appropriate procedures */
360 #ifndef RXK_LISTENER_ENV
361 rxk_GetPacketProc = MyPacketProc;
362 rxk_PacketArrivalProc = MyArrivalProc;
367 /* Called from rxi_FindPeer, when initializing a clear rx_peer structure,
368 to get interesting information. */
370 rxi_InitPeerParams(register struct rx_peer *pp)
377 #ifdef AFS_USERSPACE_IP_ADDR
378 i = rxi_Findcbi(pp->host);
381 /* pp->timeout.usec = 0; */
382 pp->ifMTU = RX_REMOTE_PACKET_SIZE;
385 /* pp->timeout.usec = 0; */
386 pp->ifMTU = MIN(RX_MAX_PACKET_SIZE, rx_MyMaxSendSize);
389 mtu = ntohl(afs_cb_interface.mtu[i]);
390 /* Diminish the packet size to one based on the MTU given by
392 if (mtu > (RX_IPUDP_SIZE + RX_HEADER_SIZE)) {
393 rxmtu = mtu - RX_IPUDP_SIZE;
394 if (rxmtu < pp->ifMTU)
397 } else { /* couldn't find the interface, so assume the worst */
398 pp->ifMTU = RX_REMOTE_PACKET_SIZE;
400 #else /* AFS_USERSPACE_IP_ADDR */
401 #ifdef AFS_DARWIN80_ENV
407 #if !defined(AFS_SGI62_ENV)
408 if (numMyNetAddrs == 0)
409 (void)rxi_GetIFInfo();
412 ifn = rxi_FindIfnet(pp->host, NULL);
415 /* pp->timeout.usec = 0; */
416 pp->ifMTU = MIN(RX_MAX_PACKET_SIZE, rx_MyMaxSendSize);
417 #ifdef IFF_POINTOPOINT
418 if (ifnet_flags(ifn) & IFF_POINTOPOINT) {
419 /* wish we knew the bit rate and the chunk size, sigh. */
421 pp->ifMTU = RX_PP_PACKET_SIZE;
423 #endif /* IFF_POINTOPOINT */
424 /* Diminish the packet size to one based on the MTU given by
426 if (ifnet_mtu(ifn) > (RX_IPUDP_SIZE + RX_HEADER_SIZE)) {
427 rxmtu = ifnet_mtu(ifn) - RX_IPUDP_SIZE;
428 if (rxmtu < pp->ifMTU)
431 } else { /* couldn't find the interface, so assume the worst */
433 /* pp->timeout.usec = 0; */
434 pp->ifMTU = RX_REMOTE_PACKET_SIZE;
436 #endif /* else AFS_USERSPACE_IP_ADDR */
437 #else /* AFS_SUN5_ENV */
438 mtu = rxi_FindIfMTU(pp->host);
442 /* pp->timeout.usec = 0; */
443 pp->ifMTU = RX_REMOTE_PACKET_SIZE;
446 /* pp->timeout.usec = 0; */
447 pp->ifMTU = MIN(RX_MAX_PACKET_SIZE, rx_MyMaxSendSize);
451 /* Diminish the packet size to one based on the MTU given by
453 if (mtu > (RX_IPUDP_SIZE + RX_HEADER_SIZE)) {
454 rxmtu = mtu - RX_IPUDP_SIZE;
455 if (rxmtu < pp->ifMTU)
458 } else { /* couldn't find the interface, so assume the worst */
459 pp->ifMTU = RX_REMOTE_PACKET_SIZE;
461 #endif /* AFS_SUN5_ENV */
462 #else /* ADAPT_MTU */
463 pp->rateFlag = 2; /* start timing after two full packets */
465 pp->ifMTU = OLD_MAX_PACKET_SIZE;
466 #endif /* else ADAPT_MTU */
467 pp->ifMTU = rxi_AdjustIfMTU(pp->ifMTU);
468 pp->maxMTU = OLD_MAX_PACKET_SIZE; /* for compatibility with old guys */
469 pp->natMTU = MIN(pp->ifMTU, OLD_MAX_PACKET_SIZE);
471 MIN(rxi_nDgramPackets,
472 rxi_AdjustDgramPackets(RX_MAX_FRAGS, pp->ifMTU));
473 pp->maxDgramPackets = 1;
475 /* Initialize slow start parameters */
476 pp->MTU = MIN(pp->natMTU, pp->maxMTU);
478 pp->nDgramPackets = 1;
483 /* The following code is common to several system types, but not all. The
484 * separate ones are found in the system specific subdirectories.
488 #if ! defined(AFS_AIX_ENV) && ! defined(AFS_SUN5_ENV) && ! defined(UKERNEL) && ! defined(AFS_LINUX20_ENV) && !defined (AFS_DARWIN_ENV) && !defined (AFS_XBSD_ENV)
489 /* Routine called during the afsd "-shutdown" process to put things back to
492 static struct protosw parent_proto; /* udp proto switch */
495 shutdown_rxkernel(void)
497 register struct protosw *tpro, *last;
498 last = inetdomain.dom_protoswNPROTOSW;
499 for (tpro = inetdomain.dom_protosw; tpro < last; tpro++)
500 if (tpro->pr_protocol == IPPROTO_UDP) {
501 /* restore original udp protocol switch */
502 memcpy((void *)tpro, (void *)&parent_proto, sizeof(parent_proto));
503 memset((void *)&parent_proto, 0, sizeof(parent_proto));
508 dpf(("shutdown_rxkernel: no udp proto"));
510 #endif /* !AIX && !SUN && !NCR && !UKERNEL */
512 #if !defined(AFS_SUN5_ENV) && !defined(AFS_SGI62_ENV)
513 /* Determine what the network interfaces are for this machine. */
515 #ifdef AFS_USERSPACE_IP_ADDR
519 int i, j, different = 0;
522 afs_uint32 addrs[ADDRSPERSITE];
523 int mtus[ADDRSPERSITE];
525 memset((void *)addrs, 0, sizeof(addrs));
526 memset((void *)mtus, 0, sizeof(mtus));
528 for (i = 0; i < afs_cb_interface.numberOfInterfaces; i++) {
529 if (!afs_cb_interface.mtu[i])
530 afs_cb_interface.mtu[i] = htonl(1500);
531 rxmtu = (ntohl(afs_cb_interface.mtu[i]) - RX_IPUDP_SIZE);
532 ifinaddr = ntohl(afs_cb_interface.addr_in[i]);
533 if (myNetAddrs[i] != ifinaddr)
537 rxmtu = rxi_AdjustIfMTU(rxmtu);
539 rxmtu * rxi_nRecvFrags + ((rxi_nRecvFrags - 1) * UDP_HDR_SIZE);
540 maxmtu = rxi_AdjustMaxMTU(rxmtu, maxmtu);
541 addrs[i++] = ifinaddr;
542 if ((ifinaddr != 0x7f000001) && (maxmtu > rx_maxReceiveSize)) {
543 rx_maxReceiveSize = MIN(RX_MAX_PACKET_SIZE, maxmtu);
544 rx_maxReceiveSize = MIN(rx_maxReceiveSize, rx_maxReceiveSizeUser);
548 rx_maxJumboRecvSize =
549 RX_HEADER_SIZE + (rxi_nDgramPackets * RX_JUMBOBUFFERSIZE) +
550 ((rxi_nDgramPackets - 1) * RX_JUMBOHEADERSIZE);
551 rx_maxJumboRecvSize = MAX(rx_maxJumboRecvSize, rx_maxReceiveSize);
554 for (j = 0; j < i; j++) {
555 myNetMTUs[j] = mtus[j];
556 myNetAddrs[j] = addrs[j];
563 /* Returns the afs_cb_interface inxex which best matches address.
564 * If none is found, we return -1.
567 rxi_Findcbi(afs_uint32 addr)
570 afs_uint32 myAddr, thisAddr, netMask, subnetMask;
571 afs_int32 rvalue = -1;
574 if (numMyNetAddrs == 0)
575 (void)rxi_GetcbiInfo();
577 myAddr = ntohl(addr);
579 if (IN_CLASSA(myAddr))
580 netMask = IN_CLASSA_NET;
581 else if (IN_CLASSB(myAddr))
582 netMask = IN_CLASSB_NET;
583 else if (IN_CLASSC(myAddr))
584 netMask = IN_CLASSC_NET;
588 for (j = 0; j < afs_cb_interface.numberOfInterfaces; j++) {
589 thisAddr = ntohl(afs_cb_interface.addr_in[j]);
590 subnetMask = ntohl(afs_cb_interface.subnetmask[j]);
591 if ((myAddr & netMask) == (thisAddr & netMask)) {
592 if ((myAddr & subnetMask) == (thisAddr & subnetMask)) {
593 if (myAddr == thisAddr) {
598 if (match_value < 3) {
603 if (match_value < 2) {
614 #else /* AFS_USERSPACE_IP_ADDR */
616 #if !defined(AFS_AIX41_ENV) && !defined(AFS_DUX40_ENV) && !defined(AFS_DARWIN_ENV) && !defined(AFS_XBSD_ENV)
617 #define IFADDR2SA(f) (&((f)->ifa_addr))
618 #else /* AFS_AIX41_ENV */
619 #define IFADDR2SA(f) ((f)->ifa_addr)
628 register int rxmtu, maxmtu;
629 afs_uint32 addrs[ADDRSPERSITE];
630 int mtus[ADDRSPERSITE];
632 #if defined(AFS_DARWIN80_ENV)
635 ifaddr_t *ifads, ifad;
636 register ifnet_t ifn;
637 struct sockaddr sout;
638 struct sockaddr_in *sin;
640 struct ifaddr *ifad; /* ifnet points to a if_addrlist of ifaddrs */
641 register struct ifnet *ifn;
644 memset(addrs, 0, sizeof(addrs));
645 memset(mtus, 0, sizeof(mtus));
647 #if defined(AFS_DARWIN80_ENV)
648 t = ifnet_get_address_list_family(NULL, &ifads, AF_INET);
650 rxmtu = ifnet_mtu(ifn) - RX_IPUDP_SIZE;
651 while((ifads[cnt] != NULL) && cnt < ADDRSPERSITE) {
652 t = ifaddr_address(ifads[cnt], &sout, sizeof(sout));
653 sin = (struct sockaddr_in *)&sout;
654 ifinaddr = ntohl(sin->sin_addr.s_addr);
655 if (myNetAddrs[i] != ifinaddr) {
659 rxmtu = rxi_AdjustIfMTU(rxmtu);
661 rxmtu * rxi_nRecvFrags +
662 ((rxi_nRecvFrags - 1) * UDP_HDR_SIZE);
663 maxmtu = rxi_AdjustMaxMTU(rxmtu, maxmtu);
664 addrs[i++] = ifinaddr;
665 if ((ifinaddr != 0x7f000001) && (maxmtu > rx_maxReceiveSize)) {
666 rx_maxReceiveSize = MIN(RX_MAX_PACKET_SIZE, maxmtu);
668 MIN(rx_maxReceiveSize, rx_maxReceiveSizeUser);
672 ifnet_free_address_list(ifads);
675 #if defined(AFS_DARWIN_ENV) || defined(AFS_FBSD_ENV)
676 TAILQ_FOREACH(ifn, &ifnet, if_link) {
677 if (i >= ADDRSPERSITE)
679 #elif defined(AFS_OBSD_ENV)
680 for (ifn = ifnet.tqh_first; i < ADDRSPERSITE && ifn != NULL;
681 ifn = ifn->if_list.tqe_next) {
683 for (ifn = ifnet; ifn != NULL && i < ADDRSPERSITE; ifn = ifn->if_next) {
685 rxmtu = (ifn->if_mtu - RX_IPUDP_SIZE);
686 #if defined(AFS_DARWIN_ENV) || defined(AFS_FBSD_ENV)
687 TAILQ_FOREACH(ifad, &ifn->if_addrhead, ifa_link) {
688 if (i >= ADDRSPERSITE)
690 #elif defined(AFS_OBSD_ENV)
691 for (ifad = ifn->if_addrlist.tqh_first;
692 ifad != NULL && i < ADDRSPERSITE;
693 ifad = ifad->ifa_list.tqe_next) {
695 for (ifad = ifn->if_addrlist; ifad != NULL && i < ADDRSPERSITE;
696 ifad = ifad->ifa_next) {
698 if (IFADDR2SA(ifad)->sa_family == AF_INET) {
700 ntohl(((struct sockaddr_in *)IFADDR2SA(ifad))->sin_addr.
702 if (myNetAddrs[i] != ifinaddr) {
706 rxmtu = rxi_AdjustIfMTU(rxmtu);
708 rxmtu * rxi_nRecvFrags +
709 ((rxi_nRecvFrags - 1) * UDP_HDR_SIZE);
710 maxmtu = rxi_AdjustMaxMTU(rxmtu, maxmtu);
711 addrs[i++] = ifinaddr;
712 if ((ifinaddr != 0x7f000001) && (maxmtu > rx_maxReceiveSize)) {
713 rx_maxReceiveSize = MIN(RX_MAX_PACKET_SIZE, maxmtu);
715 MIN(rx_maxReceiveSize, rx_maxReceiveSizeUser);
722 rx_maxJumboRecvSize =
723 RX_HEADER_SIZE + rxi_nDgramPackets * RX_JUMBOBUFFERSIZE +
724 (rxi_nDgramPackets - 1) * RX_JUMBOHEADERSIZE;
725 rx_maxJumboRecvSize = MAX(rx_maxJumboRecvSize, rx_maxReceiveSize);
729 for (j = 0; j < i; j++) {
730 myNetMTUs[j] = mtus[j];
731 myNetAddrs[j] = addrs[j];
737 #if defined(AFS_DARWIN60_ENV) || defined(AFS_XBSD_ENV)
738 /* Returns ifnet which best matches address */
739 #ifdef AFS_DARWIN80_ENV
744 rxi_FindIfnet(afs_uint32 addr, afs_uint32 * maskp)
746 struct sockaddr_in s, sr;
747 #ifdef AFS_DARWIN80_ENV
753 s.sin_family = AF_INET;
754 s.sin_addr.s_addr = addr;
755 #ifdef AFS_DARWIN80_ENV
756 ifad = ifaddr_withnet((struct sockaddr *)&s);
758 ifad = ifa_ifwithnet((struct sockaddr *)&s);
761 #ifdef AFS_DARWIN80_ENV
763 ifaddr_netmask(ifad, (struct sockaddr *)&sr, sizeof(sr));
764 *maskp = sr.sin_addr.s_addr;
766 return (ifad ? ifaddr_ifnet(ifad) : NULL);
769 *maskp = ((struct sockaddr_in *)ifad->ifa_netmask)->sin_addr.s_addr;
770 return (ifad ? ifad->ifa_ifp : NULL);
774 #else /* DARWIN60 || XBSD */
776 /* Returns ifnet which best matches address */
778 rxi_FindIfnet(afs_uint32 addr, afs_uint32 * maskp)
781 extern struct in_ifaddr *in_ifaddr;
782 struct in_ifaddr *ifa, *ifad = NULL;
786 #if defined(AFS_DARWIN_ENV)
787 for (ifa = TAILQ_FIRST(&in_ifaddrhead); ifa;
788 ifa = TAILQ_NEXT(ifa, ia_link)) {
790 for (ifa = in_ifaddr; ifa; ifa = ifa->ia_next) {
792 if ((addr & ifa->ia_netmask) == ifa->ia_net) {
793 if ((addr & ifa->ia_subnetmask) == ifa->ia_subnet) {
794 if (IA_SIN(ifa)->sin_addr.s_addr == addr) { /* ie, ME!!! */
799 if (match_value < 3) {
804 if (match_value < 2) {
809 } /* if net matches */
810 } /* for all in_ifaddrs */
814 *maskp = ifad->ia_subnetmask;
815 return (ifad ? ifad->ia_ifp : NULL);
817 #endif /* else DARWIN60 || XBSD */
818 #endif /* else AFS_USERSPACE_IP_ADDR */
819 #endif /* !SUN5 && !SGI62 */
822 /* rxk_NewSocket, rxk_FreeSocket and osi_NetSend are from the now defunct
823 * afs_osinet.c. One could argue that rxi_NewSocket could go into the
824 * system specific subdirectories for all systems. But for the moment,
825 * most of it is simple to follow common code.
827 #if !defined(UKERNEL)
828 #if !defined(AFS_SUN5_ENV) && !defined(AFS_LINUX20_ENV)
829 /* rxk_NewSocket creates a new socket on the specified port. The port is
830 * in network byte order.
833 rxk_NewSocketHost(afs_uint32 ahost, short aport)
835 register afs_int32 code;
836 #ifdef AFS_DARWIN80_ENV
839 struct socket *newSocket;
841 #if (!defined(AFS_HPUX1122_ENV) && !defined(AFS_FBSD50_ENV))
844 struct sockaddr_in myaddr;
845 #ifdef AFS_HPUX110_ENV
846 /* prototype copied from kernel source file streams/str_proto.h */
847 extern MBLKP allocb_wait(int, int);
849 int addrsize = sizeof(struct sockaddr_in);
851 extern struct fileops socketops;
857 AFS_STATCNT(osi_NewSocket);
858 #if (defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)) && defined(KERNEL_FUNNEL)
859 thread_funnel_switch(KERNEL_FUNNEL, NETWORK_FUNNEL);
863 #if defined(AFS_HPUX102_ENV)
864 #if defined(AFS_HPUX110_ENV)
865 /* we need a file associated with the socket so sosend in NetSend
867 /* blocking socket */
868 code = socreate(AF_INET, &newSocket, SOCK_DGRAM, 0, 0);
872 fp->f_flag = FREAD | FWRITE;
873 fp->f_type = DTYPE_SOCKET;
874 fp->f_ops = &socketops;
876 fp->f_data = (void *)newSocket;
877 newSocket->so_fp = (void *)fp;
879 #else /* AFS_HPUX110_ENV */
880 code = socreate(AF_INET, &newSocket, SOCK_DGRAM, 0, SS_NOWAIT);
881 #endif /* else AFS_HPUX110_ENV */
882 #elif defined(AFS_SGI65_ENV) || defined(AFS_OBSD_ENV)
883 code = socreate(AF_INET, &newSocket, SOCK_DGRAM, IPPROTO_UDP);
884 #elif defined(AFS_FBSD50_ENV)
885 code = socreate(AF_INET, &newSocket, SOCK_DGRAM, IPPROTO_UDP,
886 afs_osi_credp, curthread);
887 #elif defined(AFS_FBSD40_ENV)
888 code = socreate(AF_INET, &newSocket, SOCK_DGRAM, IPPROTO_UDP, curproc);
889 #elif defined(AFS_DARWIN80_ENV)
890 code = sock_socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP, NULL, NULL, &newSocket);
892 code = socreate(AF_INET, &newSocket, SOCK_DGRAM, 0);
893 #endif /* AFS_HPUX102_ENV */
897 memset(&myaddr, 0, sizeof myaddr);
898 myaddr.sin_family = AF_INET;
899 myaddr.sin_port = aport;
900 myaddr.sin_addr.s_addr = ahost;
901 #ifdef STRUCT_SOCKADDR_HAS_SA_LEN
902 myaddr.sin_len = sizeof(myaddr);
905 #ifdef AFS_HPUX110_ENV
906 bindnam = allocb_wait((addrsize + SO_MSGOFFSET + 1), BPRI_MED);
911 memcpy((caddr_t) bindnam->b_rptr + SO_MSGOFFSET, (caddr_t) & myaddr,
913 bindnam->b_wptr = bindnam->b_rptr + (addrsize + SO_MSGOFFSET + 1);
915 code = sobind(newSocket, bindnam, addrsize);
918 #if !defined(AFS_HPUX1122_ENV)
925 #else /* AFS_HPUX110_ENV */
926 #if defined(AFS_DARWIN80_ENV)
931 code = sock_setsockopt(newSocket, SOL_SOCKET, SO_SNDBUF,
932 &buflen, sizeof(buflen));
933 code2 = sock_setsockopt(newSocket, SOL_SOCKET, SO_RCVBUF,
934 &buflen, sizeof(buflen));
938 osi_Panic("osi_NewSocket: last attempt to reserve 32K failed!\n");
943 code = soreserve(newSocket, 50000, 50000);
945 code = soreserve(newSocket, 32766, 32766);
947 osi_Panic("osi_NewSocket: last attempt to reserve 32K failed!\n");
950 #if defined(AFS_DARWIN_ENV) || defined(AFS_FBSD_ENV)
951 #if defined(AFS_FBSD50_ENV)
952 code = sobind(newSocket, (struct sockaddr *)&myaddr, curthread);
953 #elif defined(AFS_FBSD40_ENV)
954 code = sobind(newSocket, (struct sockaddr *)&myaddr, curproc);
956 code = sobind(newSocket, (struct sockaddr *)&myaddr);
959 dpf(("sobind fails (%d)\n", (int)code));
964 #else /* defined(AFS_DARWIN_ENV) || defined(AFS_FBSD_ENV) */
966 nam = m_getclr(M_WAIT, MT_SONAME);
967 #else /* AFS_OSF_ENV */
968 nam = m_get(M_WAIT, MT_SONAME);
971 #if defined(KERNEL_HAVE_UERROR)
976 nam->m_len = sizeof(myaddr);
977 memcpy(mtod(nam, caddr_t), &myaddr, sizeof(myaddr));
979 BHV_PDATA(&bhv) = (void *)newSocket;
980 code = sobind(&bhv, nam);
983 code = sobind(newSocket, nam);
986 dpf(("sobind fails (%d)\n", (int)code));
988 #ifndef AFS_SGI65_ENV
993 #endif /* else AFS_DARWIN_ENV */
994 #endif /* else AFS_HPUX110_ENV */
997 #if defined(AFS_DARWIN_ENV) && defined(KERNEL_FUNNEL)
998 thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
1000 return (osi_socket *)newSocket;
1004 #if defined(AFS_DARWIN_ENV) && defined(KERNEL_FUNNEL)
1005 thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
1007 return (osi_socket *)0;
1011 rxk_NewSocket(short aport)
1013 return rxk_NewSocketHost(0, aport);
1016 /* free socket allocated by rxk_NewSocket */
1018 rxk_FreeSocket(register struct socket *asocket)
1020 AFS_STATCNT(osi_FreeSocket);
1021 #if defined(AFS_DARWIN_ENV) && defined(KERNEL_FUNNEL)
1022 thread_funnel_switch(KERNEL_FUNNEL, NETWORK_FUNNEL);
1024 #ifdef AFS_HPUX110_ENV
1025 if (asocket->so_fp) {
1026 struct file *fp = asocket->so_fp;
1027 #if !defined(AFS_HPUX1123_ENV)
1028 /* 11.23 still has falloc, but not FPENTRYFREE !
1029 * so for now if we shutdown, we will waist a file
1032 asocket->so_fp = NULL;
1035 #endif /* AFS_HPUX110_ENV */
1037 #if defined(AFS_DARWIN_ENV) && defined(KERNEL_FUNNEL)
1038 thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
1042 #endif /* !SUN5 && !LINUX20 */
1044 #if defined(RXK_LISTENER_ENV) || defined(AFS_SUN5_ENV)
1046 * Run RX event daemon every second (5 times faster than rest of systems)
1049 afs_rxevent_daemon(void)
1055 #ifdef RX_ENABLE_LOCKS
1057 #endif /* RX_ENABLE_LOCKS */
1059 rxevent_RaiseEvents(&temp);
1061 #ifdef RX_ENABLE_LOCKS
1063 #endif /* RX_ENABLE_LOCKS */
1064 #ifdef RX_KERNEL_TRACE
1065 afs_Trace1(afs_iclSetp, CM_TRACE_TIMESTAMP, ICL_TYPE_STRING,
1066 "before afs_osi_Wait()");
1068 afs_osi_Wait(500, NULL, 0);
1069 #ifdef RX_KERNEL_TRACE
1070 afs_Trace1(afs_iclSetp, CM_TRACE_TIMESTAMP, ICL_TYPE_STRING,
1071 "after afs_osi_Wait()");
1073 if (afs_termState == AFSOP_STOP_RXEVENT) {
1074 #ifdef RXK_LISTENER_ENV
1075 afs_termState = AFSOP_STOP_RXK_LISTENER;
1077 afs_termState = AFSOP_STOP_COMPLETE;
1079 osi_rxWakeup(&afs_termState);
1086 #ifdef RXK_LISTENER_ENV
1088 /* rxk_ReadPacket returns 1 if valid packet, 0 on error. */
1090 rxk_ReadPacket(osi_socket so, struct rx_packet *p, int *host, int *port)
1093 struct sockaddr_in from;
1096 register afs_int32 tlen;
1097 afs_int32 savelen; /* was using rlen but had aliasing problems */
1098 rx_computelen(p, tlen);
1099 rx_SetDataSize(p, tlen); /* this is the size of the user data area */
1101 tlen += RX_HEADER_SIZE; /* now this is the size of the entire packet */
1102 rlen = rx_maxJumboRecvSize; /* this is what I am advertising. Only check
1103 * it once in order to avoid races. */
1106 tlen = rxi_AllocDataBuf(p, tlen, RX_PACKET_CLASS_RECV_CBUF);
1114 /* add some padding to the last iovec, it's just to make sure that the
1115 * read doesn't return more data than we expect, and is done to get around
1116 * our problems caused by the lack of a length field in the rx header. */
1117 savelen = p->wirevec[p->niovecs - 1].iov_len;
1118 p->wirevec[p->niovecs - 1].iov_len = savelen + RX_EXTRABUFFERSIZE;
1120 nbytes = tlen + sizeof(afs_int32);
1121 #ifdef RX_KERNEL_TRACE
1122 if (ICL_SETACTIVE(afs_iclSetp)) {
1124 afs_Trace1(afs_iclSetp, CM_TRACE_TIMESTAMP, ICL_TYPE_STRING,
1125 "before osi_NetRecive()");
1129 code = osi_NetReceive(rx_socket, &from, p->wirevec, p->niovecs, &nbytes);
1131 #ifdef RX_KERNEL_TRACE
1132 if (ICL_SETACTIVE(afs_iclSetp)) {
1134 afs_Trace1(afs_iclSetp, CM_TRACE_TIMESTAMP, ICL_TYPE_STRING,
1135 "after osi_NetRecive()");
1139 /* restore the vec to its correct state */
1140 p->wirevec[p->niovecs - 1].iov_len = savelen;
1143 p->length = nbytes - RX_HEADER_SIZE;;
1144 if ((nbytes > tlen) || (p->length & 0x8000)) { /* Bogus packet */
1146 rxi_MorePackets(rx_initSendWindow);
1148 MUTEX_ENTER(&rx_stats_mutex);
1149 rx_stats.bogusPacketOnRead++;
1150 rx_stats.bogusHost = from.sin_addr.s_addr;
1151 MUTEX_EXIT(&rx_stats_mutex);
1152 dpf(("B: bogus packet from [%x,%d] nb=%d",
1153 from.sin_addr.s_addr, from.sin_port, nbytes));
1157 /* Extract packet header. */
1158 rxi_DecodePacketHeader(p);
1160 *host = from.sin_addr.s_addr;
1161 *port = from.sin_port;
1162 if (p->header.type > 0 && p->header.type < RX_N_PACKET_TYPES) {
1163 MUTEX_ENTER(&rx_stats_mutex);
1164 rx_stats.packetsRead[p->header.type - 1]++;
1165 MUTEX_EXIT(&rx_stats_mutex);
1168 /* Free any empty packet buffers at the end of this packet */
1169 rxi_TrimDataBufs(p, 1);
1179 * Listen for packets on socket. This thread is typically started after
1180 * rx_Init has called rxi_StartListener(), but nevertheless, ensures that
1181 * the start state is set before proceeding.
1183 * Note that this thread is outside the AFS global lock for much of
1186 * In many OS's, the socket receive code sleeps interruptibly. That's not what
1187 * we want here. So we need to either block all signals (including SIGKILL
1188 * and SIGSTOP) or reset the thread's signal state to unsignalled when the
1189 * OS's socket receive routine returns as a result of a signal.
1191 int rxk_ListenerPid; /* Used to signal process to wakeup at shutdown */
1195 * Run the listener as a kernel thread.
1201 void rxk_ListenerProc(void);
1203 (NULL, DEFAULTSTKSZ, rxk_ListenerProc, 0, 0, &p0, TS_RUN,
1204 minclsyspri) == NULL)
1205 osi_Panic("rxk_Listener: failed to start listener thread!\n");
1209 rxk_ListenerProc(void)
1210 #else /* AFS_SUN5_ENV */
1213 #endif /* AFS_SUN5_ENV */
1215 struct rx_packet *rxp = NULL;
1219 #ifdef AFS_LINUX20_ENV
1220 rxk_ListenerPid = current->pid;
1223 rxk_ListenerPid = 1; /* No PID, just a flag that we're alive */
1224 #endif /* AFS_SUN5_ENV */
1226 rxk_ListenerPid = curproc->p_pid;
1227 #endif /* AFS_FBSD_ENV */
1228 #ifdef AFS_DARWIN80_ENV
1229 rxk_ListenerPid = proc_selfpid();
1230 #elif defined(AFS_DARWIN_ENV)
1231 rxk_ListenerPid = current_proc()->p_pid;
1233 #if defined(RX_ENABLE_LOCKS) && !defined(AFS_SUN5_ENV)
1235 #endif /* RX_ENABLE_LOCKS && !AFS_SUN5_ENV */
1236 while (afs_termState != AFSOP_STOP_RXK_LISTENER) {
1238 rxi_RestoreDataBufs(rxp);
1240 rxp = rxi_AllocPacket(RX_PACKET_CLASS_RECEIVE);
1242 osi_Panic("rxk_Listener: No more Rx buffers!\n");
1244 if (!(code = rxk_ReadPacket(rx_socket, rxp, &host, &port))) {
1245 rxp = rxi_ReceivePacket(rxp, rx_socket, host, port, 0, 0);
1249 #ifdef RX_ENABLE_LOCKS
1251 #endif /* RX_ENABLE_LOCKS */
1252 if (afs_termState == AFSOP_STOP_RXK_LISTENER) {
1253 afs_termState = AFSOP_STOP_COMPLETE;
1254 osi_rxWakeup(&afs_termState);
1256 rxk_ListenerPid = 0;
1257 #if defined(AFS_LINUX22_ENV) || defined(AFS_SUN5_ENV)
1258 osi_rxWakeup(&rxk_ListenerPid);
1262 #endif /* AFS_SUN5_ENV */
1265 #if !defined(AFS_LINUX20_ENV) && !defined(AFS_SUN5_ENV) && !defined(AFS_DARWIN_ENV) && !defined(AFS_XBSD_ENV)
1266 /* The manner of stopping the rx listener thread may vary. Most unix's should
1267 * be able to call soclose.
1270 osi_StopListener(void)
1275 #endif /* RXK_LISTENER_ENV */
1277 #endif /* !NCR && !UKERNEL */