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
136 printk("AFS BUG at %s\n", msg);
144 * osi_utoa() - write the NUL-terminated ASCII decimal form of the given
145 * unsigned long value into the given buffer. Returns 0 on success,
146 * and a value less than 0 on failure. The contents of the buffer is
147 * defined only on success.
151 osi_utoa(char *buf, size_t len, unsigned long val)
153 long k; /* index of first byte of string value */
155 /* we definitely need room for at least one digit and NUL */
161 /* compute the string form from the high end of the buffer */
164 for (k = len - 2; k >= 0; k--) {
165 buf[k] = val % 10 + '0';
172 /* did we finish converting val to string form? */
178 /* this should never happen */
184 /* this should never happen */
190 /* if necessary, relocate string to beginning of buf[] */
195 * We need to achieve the effect of calling
197 * memmove(buf, &buf[k], len - k);
199 * However, since memmove() is not available in all
200 * kernels, we explicitly do an appropriate copy.
206 while ((*dst++ = *src++) != '\0')
214 * osi_AssertFailK() -- used by the osi_Assert() macro.
216 * It essentially does
218 * osi_Panic("assertion failed: %s, file: %s, line: %d", expr, file, line);
220 * Since the kernel version of osi_Panic() only passes its first
221 * argument to the native panic(), we construct a single string and hand
222 * that to osi_Panic().
225 osi_AssertFailK(const char *expr, const char *file, int line)
227 static const char msg0[] = "assertion failed: ";
228 static const char msg1[] = ", file: ";
229 static const char msg2[] = ", line: ";
230 static const char msg3[] = "\n";
233 * These buffers add up to 1K, which is a pleasantly nice round
234 * value, but probably not vital.
239 /* check line number conversion */
241 if (osi_utoa(linebuf, sizeof linebuf, line) < 0) {
242 osi_Panic("osi_AssertFailK: error in osi_utoa()\n");
247 #define ADDBUF(BUF, STR) \
248 if (strlen(BUF) + strlen((char *)(STR)) + 1 <= sizeof BUF) { \
249 strcat(BUF, (char *)(STR)); \
258 ADDBUF(buf, linebuf);
267 /* This is the server process request loop. Kernel server
268 * processes never become listener threads */
274 rxi_MorePackets(rx_maxReceiveWindow + 2); /* alloc more packets */
275 rxi_dataQuota += rx_initSendWindow; /* Reserve some pkts for hard times */
276 /* threadID is used for making decisions in GetCall. Get it by bumping
277 * number of threads handling incoming calls */
278 threadID = rxi_availProcs++;
280 #ifdef RX_ENABLE_LOCKS
282 #endif /* RX_ENABLE_LOCKS */
283 rxi_ServerProc(threadID, NULL, NULL);
284 #ifdef RX_ENABLE_LOCKS
286 #endif /* RX_ENABLE_LOCKS */
288 #endif /* !UKERNEL */
290 #ifndef RXK_LISTENER_ENV
291 /* asize includes the Rx header */
293 MyPacketProc(struct rx_packet **ahandle, int asize)
295 struct rx_packet *tp;
297 /* If this is larger than we expected, increase rx_maxReceiveDataSize */
298 /* If we can't scrounge enough cbufs, then we have to drop the packet,
299 * but we should set a flag so we magic up some more at our leisure.
302 if ((asize >= 0) && (asize <= RX_MAX_PACKET_SIZE)) {
303 tp = rxi_AllocPacket(RX_PACKET_CLASS_RECEIVE);
304 if (tp && (tp->length + RX_HEADER_SIZE) < asize) {
306 rxi_AllocDataBuf(tp, asize - (tp->length + RX_HEADER_SIZE),
307 RX_PACKET_CLASS_RECV_CBUF)) {
310 MUTEX_ENTER(&rx_stats_mutex);
311 rx_stats.noPacketBuffersOnRead++;
312 MUTEX_EXIT(&rx_stats_mutex);
317 * XXX if packet is too long for our buffer,
318 * should do this at a higher layer and let other
319 * end know we're losing.
321 MUTEX_ENTER(&rx_stats_mutex);
322 rx_stats.bogusPacketOnRead++;
323 MUTEX_EXIT(&rx_stats_mutex);
324 /* I DON"T LIKE THIS PRINTF -- PRINTFS MAKE THINGS VERY VERY SLOOWWW */
325 dpf(("rx: packet dropped: bad ulen=%d\n", asize));
331 /* otherwise we have a packet, set appropriate values */
337 MyArrivalProc(struct rx_packet *ahandle,
338 struct sockaddr_in *afrom,
339 struct socket *arock,
342 /* handle basic rx packet */
343 ahandle->length = asize - RX_HEADER_SIZE;
344 rxi_DecodePacketHeader(ahandle);
346 rxi_ReceivePacket(ahandle, arock,
347 afrom->sin_addr.s_addr, afrom->sin_port, NULL,
350 /* free the packet if it has been returned */
352 rxi_FreePacket(ahandle);
355 #endif /* !RXK_LISTENER_ENV */
358 rxi_StartListener(void)
360 /* if kernel, give name of appropriate procedures */
361 #ifndef RXK_LISTENER_ENV
362 rxk_GetPacketProc = MyPacketProc;
363 rxk_PacketArrivalProc = MyArrivalProc;
368 /* Called from rxi_FindPeer, when initializing a clear rx_peer structure,
369 to get interesting information. */
371 rxi_InitPeerParams(register struct rx_peer *pp)
378 #ifdef AFS_USERSPACE_IP_ADDR
379 i = rxi_Findcbi(pp->host);
382 /* pp->timeout.usec = 0; */
383 pp->ifMTU = RX_REMOTE_PACKET_SIZE;
386 /* pp->timeout.usec = 0; */
387 pp->ifMTU = MIN(RX_MAX_PACKET_SIZE, rx_MyMaxSendSize);
390 mtu = ntohl(afs_cb_interface.mtu[i]);
391 /* Diminish the packet size to one based on the MTU given by
393 if (mtu > (RX_IPUDP_SIZE + RX_HEADER_SIZE)) {
394 rxmtu = mtu - RX_IPUDP_SIZE;
395 if (rxmtu < pp->ifMTU)
398 } else { /* couldn't find the interface, so assume the worst */
399 pp->ifMTU = RX_REMOTE_PACKET_SIZE;
401 #else /* AFS_USERSPACE_IP_ADDR */
404 #if !defined(AFS_SGI62_ENV)
405 if (numMyNetAddrs == 0)
406 (void)rxi_GetIFInfo();
409 ifn = rxi_FindIfnet(pp->host, NULL);
412 /* pp->timeout.usec = 0; */
413 pp->ifMTU = MIN(RX_MAX_PACKET_SIZE, rx_MyMaxSendSize);
414 #ifdef IFF_POINTOPOINT
415 if (ifnet_flags(ifn) & IFF_POINTOPOINT) {
416 /* wish we knew the bit rate and the chunk size, sigh. */
418 pp->ifMTU = RX_PP_PACKET_SIZE;
420 #endif /* IFF_POINTOPOINT */
421 /* Diminish the packet size to one based on the MTU given by
423 if (ifnet_mtu(ifn) > (RX_IPUDP_SIZE + RX_HEADER_SIZE)) {
424 rxmtu = ifnet_mtu(ifn) - RX_IPUDP_SIZE;
425 if (rxmtu < pp->ifMTU)
428 } else { /* couldn't find the interface, so assume the worst */
430 /* pp->timeout.usec = 0; */
431 pp->ifMTU = RX_REMOTE_PACKET_SIZE;
433 #endif /* else AFS_USERSPACE_IP_ADDR */
434 #else /* AFS_SUN5_ENV */
435 mtu = rxi_FindIfMTU(pp->host);
439 /* pp->timeout.usec = 0; */
440 pp->ifMTU = RX_REMOTE_PACKET_SIZE;
443 /* pp->timeout.usec = 0; */
444 pp->ifMTU = MIN(RX_MAX_PACKET_SIZE, rx_MyMaxSendSize);
448 /* Diminish the packet size to one based on the MTU given by
450 if (mtu > (RX_IPUDP_SIZE + RX_HEADER_SIZE)) {
451 rxmtu = mtu - RX_IPUDP_SIZE;
452 if (rxmtu < pp->ifMTU)
455 } else { /* couldn't find the interface, so assume the worst */
456 pp->ifMTU = RX_REMOTE_PACKET_SIZE;
458 #endif /* AFS_SUN5_ENV */
459 #else /* ADAPT_MTU */
460 pp->rateFlag = 2; /* start timing after two full packets */
462 pp->ifMTU = OLD_MAX_PACKET_SIZE;
463 #endif /* else ADAPT_MTU */
464 pp->ifMTU = rxi_AdjustIfMTU(pp->ifMTU);
465 pp->maxMTU = OLD_MAX_PACKET_SIZE; /* for compatibility with old guys */
466 pp->natMTU = MIN(pp->ifMTU, OLD_MAX_PACKET_SIZE);
468 MIN(rxi_nDgramPackets,
469 rxi_AdjustDgramPackets(RX_MAX_FRAGS, pp->ifMTU));
470 pp->maxDgramPackets = 1;
472 /* Initialize slow start parameters */
473 pp->MTU = MIN(pp->natMTU, pp->maxMTU);
475 pp->nDgramPackets = 1;
480 /* The following code is common to several system types, but not all. The
481 * separate ones are found in the system specific subdirectories.
485 #if ! defined(AFS_AIX_ENV) && ! defined(AFS_SUN5_ENV) && ! defined(UKERNEL) && ! defined(AFS_LINUX20_ENV) && !defined (AFS_DARWIN_ENV) && !defined (AFS_XBSD_ENV)
486 /* Routine called during the afsd "-shutdown" process to put things back to
489 static struct protosw parent_proto; /* udp proto switch */
492 shutdown_rxkernel(void)
494 register struct protosw *tpro, *last;
495 last = inetdomain.dom_protoswNPROTOSW;
496 for (tpro = inetdomain.dom_protosw; tpro < last; tpro++)
497 if (tpro->pr_protocol == IPPROTO_UDP) {
498 /* restore original udp protocol switch */
499 memcpy((void *)tpro, (void *)&parent_proto, sizeof(parent_proto));
500 memset((void *)&parent_proto, 0, sizeof(parent_proto));
505 dpf(("shutdown_rxkernel: no udp proto"));
507 #endif /* !AIX && !SUN && !NCR && !UKERNEL */
509 #if !defined(AFS_SUN5_ENV) && !defined(AFS_SGI62_ENV)
510 /* Determine what the network interfaces are for this machine. */
512 #ifdef AFS_USERSPACE_IP_ADDR
516 int i, j, different = 0;
519 afs_uint32 addrs[ADDRSPERSITE];
520 int mtus[ADDRSPERSITE];
522 memset((void *)addrs, 0, sizeof(addrs));
523 memset((void *)mtus, 0, sizeof(mtus));
525 for (i = 0; i < afs_cb_interface.numberOfInterfaces; i++) {
526 if (!afs_cb_interface.mtu[i])
527 afs_cb_interface.mtu[i] = htonl(1500);
528 rxmtu = (ntohl(afs_cb_interface.mtu[i]) - RX_IPUDP_SIZE);
529 ifinaddr = ntohl(afs_cb_interface.addr_in[i]);
530 if (myNetAddrs[i] != ifinaddr)
534 rxmtu = rxi_AdjustIfMTU(rxmtu);
536 rxmtu * rxi_nRecvFrags + ((rxi_nRecvFrags - 1) * UDP_HDR_SIZE);
537 maxmtu = rxi_AdjustMaxMTU(rxmtu, maxmtu);
538 addrs[i++] = ifinaddr;
539 if ((ifinaddr != 0x7f000001) && (maxmtu > rx_maxReceiveSize)) {
540 rx_maxReceiveSize = MIN(RX_MAX_PACKET_SIZE, maxmtu);
541 rx_maxReceiveSize = MIN(rx_maxReceiveSize, rx_maxReceiveSizeUser);
545 rx_maxJumboRecvSize =
546 RX_HEADER_SIZE + (rxi_nDgramPackets * RX_JUMBOBUFFERSIZE) +
547 ((rxi_nDgramPackets - 1) * RX_JUMBOHEADERSIZE);
548 rx_maxJumboRecvSize = MAX(rx_maxJumboRecvSize, rx_maxReceiveSize);
551 for (j = 0; j < i; j++) {
552 myNetMTUs[j] = mtus[j];
553 myNetAddrs[j] = addrs[j];
560 /* Returns the afs_cb_interface inxex which best matches address.
561 * If none is found, we return -1.
564 rxi_Findcbi(afs_uint32 addr)
567 afs_uint32 myAddr, thisAddr, netMask, subnetMask;
568 afs_int32 rvalue = -1;
571 if (numMyNetAddrs == 0)
572 (void)rxi_GetcbiInfo();
574 myAddr = ntohl(addr);
576 if (IN_CLASSA(myAddr))
577 netMask = IN_CLASSA_NET;
578 else if (IN_CLASSB(myAddr))
579 netMask = IN_CLASSB_NET;
580 else if (IN_CLASSC(myAddr))
581 netMask = IN_CLASSC_NET;
585 for (j = 0; j < afs_cb_interface.numberOfInterfaces; j++) {
586 thisAddr = ntohl(afs_cb_interface.addr_in[j]);
587 subnetMask = ntohl(afs_cb_interface.subnetmask[j]);
588 if ((myAddr & netMask) == (thisAddr & netMask)) {
589 if ((myAddr & subnetMask) == (thisAddr & subnetMask)) {
590 if (myAddr == thisAddr) {
595 if (match_value < 3) {
600 if (match_value < 2) {
611 #else /* AFS_USERSPACE_IP_ADDR */
613 #if !defined(AFS_AIX41_ENV) && !defined(AFS_DUX40_ENV) && !defined(AFS_DARWIN_ENV) && !defined(AFS_XBSD_ENV)
614 #define IFADDR2SA(f) (&((f)->ifa_addr))
615 #else /* AFS_AIX41_ENV */
616 #define IFADDR2SA(f) ((f)->ifa_addr)
625 register int rxmtu, maxmtu;
626 afs_uint32 addrs[ADDRSPERSITE];
627 int mtus[ADDRSPERSITE];
629 #if defined(AFS_DARWIN80_ENV)
632 ifaddr_t *ifads, ifad;
633 register ifnet_t ifn;
634 struct sockaddr sout;
635 struct sockaddr_in *sin;
637 struct ifaddr *ifad; /* ifnet points to a if_addrlist of ifaddrs */
638 register struct ifnet *ifn;
641 memset(addrs, 0, sizeof(addrs));
642 memset(mtus, 0, sizeof(mtus));
644 #if defined(AFS_DARWIN80_ENV)
645 t = ifnet_get_address_list_family(NULL, &ifads, AF_INET);
647 rxmtu = ifnet_mtu(ifn) - RX_IPUDP_SIZE;
648 while((ifads[cnt] != NULL) && cnt < ADDRSPERSITE) {
649 t = ifaddr_address(ifads[cnt], &sout, sizeof(sout));
650 sin = (struct sockaddr_in *)&sout;
651 ifinaddr = ntohl(sin->sin_addr.s_addr);
652 if (myNetAddrs[i] != ifinaddr) {
656 rxmtu = rxi_AdjustIfMTU(rxmtu);
658 rxmtu * rxi_nRecvFrags +
659 ((rxi_nRecvFrags - 1) * UDP_HDR_SIZE);
660 maxmtu = rxi_AdjustMaxMTU(rxmtu, maxmtu);
661 addrs[i++] = ifinaddr;
662 if ((ifinaddr != 0x7f000001) && (maxmtu > rx_maxReceiveSize)) {
663 rx_maxReceiveSize = MIN(RX_MAX_PACKET_SIZE, maxmtu);
665 MIN(rx_maxReceiveSize, rx_maxReceiveSizeUser);
669 ifnet_free_address_list(ifads);
672 #if defined(AFS_DARWIN_ENV) || defined(AFS_FBSD_ENV)
673 TAILQ_FOREACH(ifn, &ifnet, if_link) {
674 if (i >= ADDRSPERSITE)
676 #elif defined(AFS_OBSD_ENV)
677 for (ifn = ifnet.tqh_first; i < ADDRSPERSITE && ifn != NULL;
678 ifn = ifn->if_list.tqe_next) {
680 for (ifn = ifnet; ifn != NULL && i < ADDRSPERSITE; ifn = ifn->if_next) {
682 rxmtu = (ifn->if_mtu - RX_IPUDP_SIZE);
683 #if defined(AFS_DARWIN_ENV) || defined(AFS_FBSD_ENV)
684 TAILQ_FOREACH(ifad, &ifn->if_addrhead, ifa_link) {
685 if (i >= ADDRSPERSITE)
687 #elif defined(AFS_OBSD_ENV)
688 for (ifad = ifn->if_addrlist.tqh_first;
689 ifad != NULL && i < ADDRSPERSITE;
690 ifad = ifad->ifa_list.tqe_next) {
692 for (ifad = ifn->if_addrlist; ifad != NULL && i < ADDRSPERSITE;
693 ifad = ifad->ifa_next) {
695 if (IFADDR2SA(ifad)->sa_family == AF_INET) {
697 ntohl(((struct sockaddr_in *)IFADDR2SA(ifad))->sin_addr.
699 if (myNetAddrs[i] != ifinaddr) {
703 rxmtu = rxi_AdjustIfMTU(rxmtu);
705 rxmtu * rxi_nRecvFrags +
706 ((rxi_nRecvFrags - 1) * UDP_HDR_SIZE);
707 maxmtu = rxi_AdjustMaxMTU(rxmtu, maxmtu);
708 addrs[i++] = ifinaddr;
709 if ((ifinaddr != 0x7f000001) && (maxmtu > rx_maxReceiveSize)) {
710 rx_maxReceiveSize = MIN(RX_MAX_PACKET_SIZE, maxmtu);
712 MIN(rx_maxReceiveSize, rx_maxReceiveSizeUser);
719 rx_maxJumboRecvSize =
720 RX_HEADER_SIZE + rxi_nDgramPackets * RX_JUMBOBUFFERSIZE +
721 (rxi_nDgramPackets - 1) * RX_JUMBOHEADERSIZE;
722 rx_maxJumboRecvSize = MAX(rx_maxJumboRecvSize, rx_maxReceiveSize);
726 for (j = 0; j < i; j++) {
727 myNetMTUs[j] = mtus[j];
728 myNetAddrs[j] = addrs[j];
734 #if defined(AFS_DARWIN60_ENV) || defined(AFS_XBSD_ENV)
735 /* Returns ifnet which best matches address */
736 #ifdef AFS_DARWIN80_ENV
741 rxi_FindIfnet(afs_uint32 addr, afs_uint32 * maskp)
743 struct sockaddr_in s, sr;
744 #ifdef AFS_DARWIN80_ENV
750 s.sin_family = AF_INET;
751 s.sin_addr.s_addr = addr;
752 #ifdef AFS_DARWIN80_ENV
753 ifad = ifaddr_withnet((struct sockaddr *)&s);
755 ifad = ifa_ifwithnet((struct sockaddr *)&s);
758 #ifdef AFS_DARWIN80_ENV
760 ifaddr_netmask(ifad, (struct sockaddr *)&sr, sizeof(sr));
761 *maskp = sr.sin_addr.s_addr;
763 return (ifad ? ifaddr_ifnet(ifad) : NULL);
766 *maskp = ((struct sockaddr_in *)ifad->ifa_netmask)->sin_addr.s_addr;
767 return (ifad ? ifad->ifa_ifp : NULL);
771 #else /* DARWIN60 || XBSD */
773 /* Returns ifnet which best matches address */
775 rxi_FindIfnet(afs_uint32 addr, afs_uint32 * maskp)
778 extern struct in_ifaddr *in_ifaddr;
779 struct in_ifaddr *ifa, *ifad = NULL;
783 #if defined(AFS_DARWIN_ENV)
784 for (ifa = TAILQ_FIRST(&in_ifaddrhead); ifa;
785 ifa = TAILQ_NEXT(ifa, ia_link)) {
787 for (ifa = in_ifaddr; ifa; ifa = ifa->ia_next) {
789 if ((addr & ifa->ia_netmask) == ifa->ia_net) {
790 if ((addr & ifa->ia_subnetmask) == ifa->ia_subnet) {
791 if (IA_SIN(ifa)->sin_addr.s_addr == addr) { /* ie, ME!!! */
796 if (match_value < 3) {
801 if (match_value < 2) {
806 } /* if net matches */
807 } /* for all in_ifaddrs */
811 *maskp = ifad->ia_subnetmask;
812 return (ifad ? ifad->ia_ifp : NULL);
814 #endif /* else DARWIN60 || XBSD */
815 #endif /* else AFS_USERSPACE_IP_ADDR */
816 #endif /* !SUN5 && !SGI62 */
819 /* rxk_NewSocket, rxk_FreeSocket and osi_NetSend are from the now defunct
820 * afs_osinet.c. One could argue that rxi_NewSocket could go into the
821 * system specific subdirectories for all systems. But for the moment,
822 * most of it is simple to follow common code.
824 #if !defined(UKERNEL)
825 #if !defined(AFS_SUN5_ENV) && !defined(AFS_LINUX20_ENV)
826 /* rxk_NewSocket creates a new socket on the specified port. The port is
827 * in network byte order.
830 rxk_NewSocketHost(afs_uint32 ahost, short aport)
832 register afs_int32 code;
833 #ifdef AFS_DARWIN80_ENV
836 struct socket *newSocket;
838 #if (!defined(AFS_HPUX1122_ENV) && !defined(AFS_FBSD50_ENV))
841 struct sockaddr_in myaddr;
842 #ifdef AFS_HPUX110_ENV
843 /* prototype copied from kernel source file streams/str_proto.h */
844 extern MBLKP allocb_wait(int, int);
846 int addrsize = sizeof(struct sockaddr_in);
848 extern struct fileops socketops;
854 AFS_STATCNT(osi_NewSocket);
855 #if (defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)) && defined(KERNEL_FUNNEL)
856 thread_funnel_switch(KERNEL_FUNNEL, NETWORK_FUNNEL);
860 #if defined(AFS_HPUX102_ENV)
861 #if defined(AFS_HPUX110_ENV)
862 /* we need a file associated with the socket so sosend in NetSend
864 /* blocking socket */
865 code = socreate(AF_INET, &newSocket, SOCK_DGRAM, 0, 0);
869 fp->f_flag = FREAD | FWRITE;
870 fp->f_type = DTYPE_SOCKET;
871 fp->f_ops = &socketops;
873 fp->f_data = (void *)newSocket;
874 newSocket->so_fp = (void *)fp;
876 #else /* AFS_HPUX110_ENV */
877 code = socreate(AF_INET, &newSocket, SOCK_DGRAM, 0, SS_NOWAIT);
878 #endif /* else AFS_HPUX110_ENV */
879 #elif defined(AFS_SGI65_ENV) || defined(AFS_OBSD_ENV)
880 code = socreate(AF_INET, &newSocket, SOCK_DGRAM, IPPROTO_UDP);
881 #elif defined(AFS_FBSD50_ENV)
882 code = socreate(AF_INET, &newSocket, SOCK_DGRAM, IPPROTO_UDP,
883 afs_osi_credp, curthread);
884 #elif defined(AFS_FBSD40_ENV)
885 code = socreate(AF_INET, &newSocket, SOCK_DGRAM, IPPROTO_UDP, curproc);
886 #elif defined(AFS_DARWIN80_ENV)
887 code = sock_socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP, NULL, NULL, &newSocket);
889 code = socreate(AF_INET, &newSocket, SOCK_DGRAM, 0);
890 #endif /* AFS_HPUX102_ENV */
894 memset(&myaddr, 0, sizeof myaddr);
895 myaddr.sin_family = AF_INET;
896 myaddr.sin_port = aport;
897 myaddr.sin_addr.s_addr = ahost;
898 #ifdef STRUCT_SOCKADDR_HAS_SA_LEN
899 myaddr.sin_len = sizeof(myaddr);
902 #ifdef AFS_HPUX110_ENV
903 bindnam = allocb_wait((addrsize + SO_MSGOFFSET + 1), BPRI_MED);
908 memcpy((caddr_t) bindnam->b_rptr + SO_MSGOFFSET, (caddr_t) & myaddr,
910 bindnam->b_wptr = bindnam->b_rptr + (addrsize + SO_MSGOFFSET + 1);
912 code = sobind(newSocket, bindnam, addrsize);
915 #if !defined(AFS_HPUX1122_ENV)
922 #else /* AFS_HPUX110_ENV */
923 #if defined(AFS_DARWIN80_ENV)
928 code = sock_setsockopt(newSocket, SOL_SOCKET, SO_SNDBUF,
929 &buflen, sizeof(buflen));
930 code2 = sock_setsockopt(newSocket, SOL_SOCKET, SO_RCVBUF,
931 &buflen, sizeof(buflen));
935 osi_Panic("osi_NewSocket: last attempt to reserve 32K failed!\n");
940 code = soreserve(newSocket, 50000, 50000);
942 code = soreserve(newSocket, 32766, 32766);
944 osi_Panic("osi_NewSocket: last attempt to reserve 32K failed!\n");
947 #if defined(AFS_DARWIN_ENV) || defined(AFS_FBSD_ENV)
948 #if defined(AFS_FBSD50_ENV)
949 code = sobind(newSocket, (struct sockaddr *)&myaddr, curthread);
950 #elif defined(AFS_FBSD40_ENV)
951 code = sobind(newSocket, (struct sockaddr *)&myaddr, curproc);
953 code = sobind(newSocket, (struct sockaddr *)&myaddr);
956 dpf(("sobind fails (%d)\n", (int)code));
961 #else /* defined(AFS_DARWIN_ENV) || defined(AFS_FBSD_ENV) */
963 nam = m_getclr(M_WAIT, MT_SONAME);
964 #else /* AFS_OSF_ENV */
965 nam = m_get(M_WAIT, MT_SONAME);
968 #if defined(KERNEL_HAVE_UERROR)
973 nam->m_len = sizeof(myaddr);
974 memcpy(mtod(nam, caddr_t), &myaddr, sizeof(myaddr));
976 BHV_PDATA(&bhv) = (void *)newSocket;
977 code = sobind(&bhv, nam);
980 code = sobind(newSocket, nam);
983 dpf(("sobind fails (%d)\n", (int)code));
985 #ifndef AFS_SGI65_ENV
990 #endif /* else AFS_DARWIN_ENV */
991 #endif /* else AFS_HPUX110_ENV */
994 #if defined(AFS_DARWIN_ENV) && defined(KERNEL_FUNNEL)
995 thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
997 return (osi_socket *)newSocket;
1001 #if defined(AFS_DARWIN_ENV) && defined(KERNEL_FUNNEL)
1002 thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
1004 return (osi_socket *)0;
1008 rxk_NewSocket(short aport)
1010 return rxk_NewSocketHost(0, aport);
1013 /* free socket allocated by rxk_NewSocket */
1015 rxk_FreeSocket(register struct socket *asocket)
1017 AFS_STATCNT(osi_FreeSocket);
1018 #if defined(AFS_DARWIN_ENV) && defined(KERNEL_FUNNEL)
1019 thread_funnel_switch(KERNEL_FUNNEL, NETWORK_FUNNEL);
1021 #ifdef AFS_HPUX110_ENV
1022 if (asocket->so_fp) {
1023 struct file *fp = asocket->so_fp;
1024 #if !defined(AFS_HPUX1123_ENV)
1025 /* 11.23 still has falloc, but not FPENTRYFREE !
1026 * so for now if we shutdown, we will waist a file
1029 asocket->so_fp = NULL;
1032 #endif /* AFS_HPUX110_ENV */
1034 #if defined(AFS_DARWIN_ENV) && defined(KERNEL_FUNNEL)
1035 thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
1039 #endif /* !SUN5 && !LINUX20 */
1041 #if defined(RXK_LISTENER_ENV) || defined(AFS_SUN5_ENV)
1043 * Run RX event daemon every second (5 times faster than rest of systems)
1046 afs_rxevent_daemon(void)
1052 #ifdef RX_ENABLE_LOCKS
1054 #endif /* RX_ENABLE_LOCKS */
1056 rxevent_RaiseEvents(&temp);
1058 #ifdef RX_ENABLE_LOCKS
1060 #endif /* RX_ENABLE_LOCKS */
1061 #ifdef RX_KERNEL_TRACE
1062 afs_Trace1(afs_iclSetp, CM_TRACE_TIMESTAMP, ICL_TYPE_STRING,
1063 "before afs_osi_Wait()");
1065 afs_osi_Wait(500, NULL, 0);
1066 #ifdef RX_KERNEL_TRACE
1067 afs_Trace1(afs_iclSetp, CM_TRACE_TIMESTAMP, ICL_TYPE_STRING,
1068 "after afs_osi_Wait()");
1070 if (afs_termState == AFSOP_STOP_RXEVENT) {
1071 #ifdef RXK_LISTENER_ENV
1072 afs_termState = AFSOP_STOP_RXK_LISTENER;
1074 afs_termState = AFSOP_STOP_COMPLETE;
1076 osi_rxWakeup(&afs_termState);
1083 #ifdef RXK_LISTENER_ENV
1085 /* rxk_ReadPacket returns 1 if valid packet, 0 on error. */
1087 rxk_ReadPacket(osi_socket so, struct rx_packet *p, int *host, int *port)
1090 struct sockaddr_in from;
1093 register afs_int32 tlen;
1094 afs_int32 savelen; /* was using rlen but had aliasing problems */
1095 rx_computelen(p, tlen);
1096 rx_SetDataSize(p, tlen); /* this is the size of the user data area */
1098 tlen += RX_HEADER_SIZE; /* now this is the size of the entire packet */
1099 rlen = rx_maxJumboRecvSize; /* this is what I am advertising. Only check
1100 * it once in order to avoid races. */
1103 tlen = rxi_AllocDataBuf(p, tlen, RX_PACKET_CLASS_RECV_CBUF);
1111 /* add some padding to the last iovec, it's just to make sure that the
1112 * read doesn't return more data than we expect, and is done to get around
1113 * our problems caused by the lack of a length field in the rx header. */
1114 savelen = p->wirevec[p->niovecs - 1].iov_len;
1115 p->wirevec[p->niovecs - 1].iov_len = savelen + RX_EXTRABUFFERSIZE;
1117 nbytes = tlen + sizeof(afs_int32);
1118 #ifdef RX_KERNEL_TRACE
1119 if (ICL_SETACTIVE(afs_iclSetp)) {
1121 afs_Trace1(afs_iclSetp, CM_TRACE_TIMESTAMP, ICL_TYPE_STRING,
1122 "before osi_NetRecive()");
1126 code = osi_NetReceive(rx_socket, &from, p->wirevec, p->niovecs, &nbytes);
1128 #ifdef RX_KERNEL_TRACE
1129 if (ICL_SETACTIVE(afs_iclSetp)) {
1131 afs_Trace1(afs_iclSetp, CM_TRACE_TIMESTAMP, ICL_TYPE_STRING,
1132 "after osi_NetRecive()");
1136 /* restore the vec to its correct state */
1137 p->wirevec[p->niovecs - 1].iov_len = savelen;
1140 p->length = nbytes - RX_HEADER_SIZE;;
1141 if ((nbytes > tlen) || (p->length & 0x8000)) { /* Bogus packet */
1143 rxi_MorePackets(rx_initSendWindow);
1145 MUTEX_ENTER(&rx_stats_mutex);
1146 rx_stats.bogusPacketOnRead++;
1147 rx_stats.bogusHost = from.sin_addr.s_addr;
1148 MUTEX_EXIT(&rx_stats_mutex);
1149 dpf(("B: bogus packet from [%x,%d] nb=%d",
1150 from.sin_addr.s_addr, from.sin_port, nbytes));
1154 /* Extract packet header. */
1155 rxi_DecodePacketHeader(p);
1157 *host = from.sin_addr.s_addr;
1158 *port = from.sin_port;
1159 if (p->header.type > 0 && p->header.type < RX_N_PACKET_TYPES) {
1160 MUTEX_ENTER(&rx_stats_mutex);
1161 rx_stats.packetsRead[p->header.type - 1]++;
1162 MUTEX_EXIT(&rx_stats_mutex);
1165 /* Free any empty packet buffers at the end of this packet */
1166 rxi_TrimDataBufs(p, 1);
1176 * Listen for packets on socket. This thread is typically started after
1177 * rx_Init has called rxi_StartListener(), but nevertheless, ensures that
1178 * the start state is set before proceeding.
1180 * Note that this thread is outside the AFS global lock for much of
1183 * In many OS's, the socket receive code sleeps interruptibly. That's not what
1184 * we want here. So we need to either block all signals (including SIGKILL
1185 * and SIGSTOP) or reset the thread's signal state to unsignalled when the
1186 * OS's socket receive routine returns as a result of a signal.
1188 int rxk_ListenerPid; /* Used to signal process to wakeup at shutdown */
1192 * Run the listener as a kernel thread.
1198 void rxk_ListenerProc(void);
1200 (NULL, DEFAULTSTKSZ, rxk_ListenerProc, 0, 0, &p0, TS_RUN,
1201 minclsyspri) == NULL)
1202 osi_Panic("rxk_Listener: failed to start listener thread!\n");
1206 rxk_ListenerProc(void)
1207 #else /* AFS_SUN5_ENV */
1210 #endif /* AFS_SUN5_ENV */
1212 struct rx_packet *rxp = NULL;
1216 #ifdef AFS_LINUX20_ENV
1217 rxk_ListenerPid = current->pid;
1220 rxk_ListenerPid = 1; /* No PID, just a flag that we're alive */
1221 #endif /* AFS_SUN5_ENV */
1223 rxk_ListenerPid = curproc->p_pid;
1224 #endif /* AFS_FBSD_ENV */
1225 #ifdef AFS_DARWIN80_ENV
1226 rxk_ListenerPid = proc_selfpid();
1227 #elif defined(AFS_DARWIN_ENV)
1228 rxk_ListenerPid = current_proc()->p_pid;
1230 #if defined(RX_ENABLE_LOCKS) && !defined(AFS_SUN5_ENV)
1232 #endif /* RX_ENABLE_LOCKS && !AFS_SUN5_ENV */
1233 while (afs_termState != AFSOP_STOP_RXK_LISTENER) {
1235 rxi_RestoreDataBufs(rxp);
1237 rxp = rxi_AllocPacket(RX_PACKET_CLASS_RECEIVE);
1239 osi_Panic("rxk_Listener: No more Rx buffers!\n");
1241 if (!(code = rxk_ReadPacket(rx_socket, rxp, &host, &port))) {
1242 rxp = rxi_ReceivePacket(rxp, rx_socket, host, port, 0, 0);
1246 #ifdef RX_ENABLE_LOCKS
1248 #endif /* RX_ENABLE_LOCKS */
1249 if (afs_termState == AFSOP_STOP_RXK_LISTENER) {
1250 afs_termState = AFSOP_STOP_COMPLETE;
1251 osi_rxWakeup(&afs_termState);
1253 rxk_ListenerPid = 0;
1254 #if defined(AFS_LINUX22_ENV) || defined(AFS_SUN5_ENV)
1255 osi_rxWakeup(&rxk_ListenerPid);
1259 #endif /* AFS_SUN5_ENV */
1262 #if !defined(AFS_LINUX20_ENV) && !defined(AFS_SUN5_ENV) && !defined(AFS_DARWIN_ENV) && !defined(AFS_XBSD_ENV)
1263 /* The manner of stopping the rx listener thread may vary. Most unix's should
1264 * be able to call soclose.
1267 osi_StopListener(void)
1272 #endif /* RXK_LISTENER_ENV */
1274 #endif /* !NCR && !UKERNEL */