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"
18 #include "rx/rx_kcommon.h"
19 #include "rx_atomic.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)
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_utoa() - write the NUL-terminated ASCII decimal form of the given
129 * unsigned long value into the given buffer. Returns 0 on success,
130 * and a value less than 0 on failure. The contents of the buffer is
131 * defined only on success.
135 osi_utoa(char *buf, size_t len, unsigned long val)
137 long k; /* index of first byte of string value */
139 /* we definitely need room for at least one digit and NUL */
145 /* compute the string form from the high end of the buffer */
148 for (k = len - 2; k >= 0; k--) {
149 buf[k] = val % 10 + '0';
156 /* did we finish converting val to string form? */
162 /* this should never happen */
168 /* this should never happen */
174 /* if necessary, relocate string to beginning of buf[] */
179 * We need to achieve the effect of calling
181 * memmove(buf, &buf[k], len - k);
183 * However, since memmove() is not available in all
184 * kernels, we explicitly do an appropriate copy.
190 while ((*dst++ = *src++) != '\0')
197 #ifndef AFS_LINUX26_ENV
199 * osi_AssertFailK() -- used by the osi_Assert() macro.
201 * It essentially does
203 * osi_Panic("assertion failed: %s, file: %s, line: %d", expr, file, line);
205 * Since the kernel version of osi_Panic() only passes its first
206 * argument to the native panic(), we construct a single string and hand
207 * that to osi_Panic().
210 osi_AssertFailK(const char *expr, const char *file, int line)
212 static const char msg0[] = "assertion failed: ";
213 static const char msg1[] = ", file: ";
214 static const char msg2[] = ", line: ";
215 static const char msg3[] = "\n";
218 * These buffers add up to 1K, which is a pleasantly nice round
219 * value, but probably not vital.
224 /* check line number conversion */
226 if (osi_utoa(linebuf, sizeof linebuf, line) < 0) {
227 osi_Panic("osi_AssertFailK: error in osi_utoa()\n");
232 #define ADDBUF(BUF, STR) \
233 if (strlen(BUF) + strlen((char *)(STR)) + 1 <= sizeof BUF) { \
234 strcat(BUF, (char *)(STR)); \
243 ADDBUF(buf, linebuf);
248 osi_Panic("%s", buf);
253 /* This is the server process request loop. Kernel server
254 * processes never become listener threads */
256 rx_ServerProc(void *unused)
260 rxi_MorePackets(rx_maxReceiveWindow + 2); /* alloc more packets */
261 MUTEX_ENTER(&rx_quota_mutex);
262 rxi_dataQuota += rx_initSendWindow; /* Reserve some pkts for hard times */
263 /* threadID is used for making decisions in GetCall. Get it by bumping
264 * number of threads handling incoming calls */
265 threadID = rxi_availProcs++;
266 MUTEX_EXIT(&rx_quota_mutex);
268 #ifdef RX_ENABLE_LOCKS
270 #endif /* RX_ENABLE_LOCKS */
271 rxi_ServerProc(threadID, NULL, NULL);
272 #ifdef RX_ENABLE_LOCKS
274 #endif /* RX_ENABLE_LOCKS */
278 #endif /* !UKERNEL */
280 #ifndef RXK_LISTENER_ENV
281 /* asize includes the Rx header */
283 MyPacketProc(struct rx_packet **ahandle, int asize)
285 struct rx_packet *tp;
287 /* If this is larger than we expected, increase rx_maxReceiveDataSize */
288 /* If we can't scrounge enough cbufs, then we have to drop the packet,
289 * but we should set a flag so we magic up some more at our leisure.
292 if ((asize >= 0) && (asize <= RX_MAX_PACKET_SIZE)) {
293 tp = rxi_AllocPacket(RX_PACKET_CLASS_RECEIVE);
294 if (tp && (tp->length + RX_HEADER_SIZE) < asize) {
296 rxi_AllocDataBuf(tp, asize - (tp->length + RX_HEADER_SIZE),
297 RX_PACKET_CLASS_RECV_CBUF)) {
300 if (rx_stats_active) {
301 rx_atomic_inc(&rx_stats.noPacketBuffersOnRead);
307 * XXX if packet is too long for our buffer,
308 * should do this at a higher layer and let other
309 * end know we're losing.
311 if (rx_stats_active) {
312 rx_atomic_inc(&rx_stats.bogusPacketOnRead);
314 /* I DON"T LIKE THIS PRINTF -- PRINTFS MAKE THINGS VERY VERY SLOOWWW */
315 dpf(("rx: packet dropped: bad ulen=%d\n", asize));
321 /* otherwise we have a packet, set appropriate values */
327 MyArrivalProc(struct rx_packet *ahandle,
328 struct sockaddr_in *afrom,
329 struct socket *arock,
332 /* handle basic rx packet */
333 ahandle->length = asize - RX_HEADER_SIZE;
334 rxi_DecodePacketHeader(ahandle);
336 rxi_ReceivePacket(ahandle, arock,
337 afrom->sin_addr.s_addr, afrom->sin_port, NULL,
340 /* free the packet if it has been returned */
342 rxi_FreePacket(ahandle);
345 #endif /* !RXK_LISTENER_ENV */
348 rxi_StartListener(void)
350 #if !defined(RXK_LISTENER_ENV) && !defined(RXK_UPCALL_ENV)
351 /* if kernel, give name of appropriate procedures */
352 rxk_GetPacketProc = MyPacketProc;
353 rxk_PacketArrivalProc = MyArrivalProc;
358 /* Called from rxi_FindPeer, when initializing a clear rx_peer structure,
359 to get interesting information. */
361 rxi_InitPeerParams(struct rx_peer *pp)
366 # ifndef AFS_SUN5_ENV
367 # ifdef AFS_USERSPACE_IP_ADDR
371 i = rxi_Findcbi(pp->host);
374 /* pp->timeout.usec = 0; */
375 pp->ifMTU = MIN(RX_REMOTE_PACKET_SIZE, rx_MyMaxSendSize);
378 /* pp->timeout.usec = 0; */
379 pp->ifMTU = MIN(RX_MAX_PACKET_SIZE, rx_MyMaxSendSize);
380 mtu = ntohl(afs_cb_interface.mtu[i]);
381 /* Diminish the packet size to one based on the MTU given by
383 if (mtu > (RX_IPUDP_SIZE + RX_HEADER_SIZE)) {
384 rxmtu = mtu - RX_IPUDP_SIZE;
385 if (rxmtu < pp->ifMTU)
389 # else /* AFS_USERSPACE_IP_ADDR */
392 # if !defined(AFS_SGI62_ENV)
393 if (numMyNetAddrs == 0)
394 (void)rxi_GetIFInfo();
397 ifn = rxi_FindIfnet(pp->host, NULL);
400 /* pp->timeout.usec = 0; */
401 pp->ifMTU = MIN(RX_MAX_PACKET_SIZE, rx_MyMaxSendSize);
402 # ifdef IFF_POINTOPOINT
403 if (rx_ifnet_flags(ifn) & IFF_POINTOPOINT) {
404 /* wish we knew the bit rate and the chunk size, sigh. */
406 pp->ifMTU = RX_PP_PACKET_SIZE;
408 # endif /* IFF_POINTOPOINT */
409 /* Diminish the packet size to one based on the MTU given by
411 if (rx_ifnet_mtu(ifn) > (RX_IPUDP_SIZE + RX_HEADER_SIZE)) {
412 rxmtu = rx_ifnet_mtu(ifn) - RX_IPUDP_SIZE;
413 if (rxmtu < pp->ifMTU)
416 } else { /* couldn't find the interface, so assume the worst */
418 /* pp->timeout.usec = 0; */
419 pp->ifMTU = MIN(RX_REMOTE_PACKET_SIZE, rx_MyMaxSendSize);
421 # endif /* else AFS_USERSPACE_IP_ADDR */
422 # else /* AFS_SUN5_ENV */
425 mtu = rxi_FindIfMTU(pp->host);
429 /* pp->timeout.usec = 0; */
430 pp->ifMTU = MIN(RX_REMOTE_PACKET_SIZE, rx_MyMaxSendSize);
433 /* pp->timeout.usec = 0; */
434 pp->ifMTU = MIN(RX_MAX_PACKET_SIZE, rx_MyMaxSendSize);
436 /* Diminish the packet size to one based on the MTU given by
438 if (mtu > (RX_IPUDP_SIZE + RX_HEADER_SIZE)) {
439 rxmtu = mtu - RX_IPUDP_SIZE;
440 if (rxmtu < pp->ifMTU)
444 # endif /* AFS_SUN5_ENV */
445 #else /* ADAPT_MTU */
446 pp->rateFlag = 2; /* start timing after two full packets */
448 pp->ifMTU = OLD_MAX_PACKET_SIZE;
449 #endif /* else ADAPT_MTU */
450 pp->ifMTU = rxi_AdjustIfMTU(pp->ifMTU);
451 pp->maxMTU = OLD_MAX_PACKET_SIZE; /* for compatibility with old guys */
452 pp->natMTU = MIN(pp->ifMTU, OLD_MAX_PACKET_SIZE);
454 MIN(rxi_nDgramPackets,
455 rxi_AdjustDgramPackets(rxi_nSendFrags, pp->ifMTU));
456 pp->maxDgramPackets = 1;
458 /* Initialize slow start parameters */
459 pp->MTU = MIN(pp->natMTU, pp->maxMTU);
461 pp->nDgramPackets = 1;
466 /* The following code is common to several system types, but not all. The
467 * separate ones are found in the system specific subdirectories.
471 #if ! defined(AFS_AIX_ENV) && ! defined(AFS_SUN5_ENV) && ! defined(UKERNEL) && ! defined(AFS_LINUX20_ENV) && !defined (AFS_DARWIN_ENV) && !defined (AFS_XBSD_ENV)
472 /* Routine called during the afsd "-shutdown" process to put things back to
475 static struct protosw parent_proto; /* udp proto switch */
478 shutdown_rxkernel(void)
480 struct protosw *tpro, *last;
481 last = inetdomain.dom_protoswNPROTOSW;
482 for (tpro = inetdomain.dom_protosw; tpro < last; tpro++)
483 if (tpro->pr_protocol == IPPROTO_UDP) {
484 /* restore original udp protocol switch */
485 memcpy((void *)tpro, (void *)&parent_proto, sizeof(parent_proto));
486 memset((void *)&parent_proto, 0, sizeof(parent_proto));
491 dpf(("shutdown_rxkernel: no udp proto\n"));
493 #endif /* !AIX && !SUN && !NCR && !UKERNEL */
495 #if !defined(AFS_SUN5_ENV) && !defined(AFS_SGI62_ENV)
496 /* Determine what the network interfaces are for this machine. */
498 #ifdef AFS_USERSPACE_IP_ADDR
502 int i, j, different = 0, num = ADDRSPERSITE;
505 afs_uint32 addrs[ADDRSPERSITE];
506 int mtus[ADDRSPERSITE];
508 memset((void *)addrs, 0, sizeof(addrs));
509 memset((void *)mtus, 0, sizeof(mtus));
511 if (afs_cb_interface.numberOfInterfaces < num)
512 num = afs_cb_interface.numberOfInterfaces;
513 for (i = 0; i < num; i++) {
514 if (!afs_cb_interface.mtu[i])
515 afs_cb_interface.mtu[i] = htonl(1500);
516 rxmtu = (ntohl(afs_cb_interface.mtu[i]) - RX_IPUDP_SIZE);
517 ifinaddr = ntohl(afs_cb_interface.addr_in[i]);
518 if (myNetAddrs[i] != ifinaddr)
522 rxmtu = rxi_AdjustIfMTU(rxmtu);
524 rxmtu * rxi_nRecvFrags + ((rxi_nRecvFrags - 1) * UDP_HDR_SIZE);
525 maxmtu = rxi_AdjustMaxMTU(rxmtu, maxmtu);
526 addrs[i++] = ifinaddr;
527 if (!rx_IsLoopbackAddr(ifinaddr) && (maxmtu > rx_maxReceiveSize)) {
528 rx_maxReceiveSize = MIN(RX_MAX_PACKET_SIZE, maxmtu);
529 rx_maxReceiveSize = MIN(rx_maxReceiveSize, rx_maxReceiveSizeUser);
533 rx_maxJumboRecvSize =
534 RX_HEADER_SIZE + (rxi_nDgramPackets * RX_JUMBOBUFFERSIZE) +
535 ((rxi_nDgramPackets - 1) * RX_JUMBOHEADERSIZE);
536 rx_maxJumboRecvSize = MAX(rx_maxJumboRecvSize, rx_maxReceiveSize);
539 for (j = 0; j < i; j++) {
540 myNetMTUs[j] = mtus[j];
541 myNetAddrs[j] = addrs[j];
548 /* Returns the afs_cb_interface inxex which best matches address.
549 * If none is found, we return -1.
552 rxi_Findcbi(afs_uint32 addr)
555 afs_uint32 myAddr, thisAddr, netMask, subnetMask;
556 afs_int32 rvalue = -1;
559 if (numMyNetAddrs == 0)
560 (void)rxi_GetcbiInfo();
562 myAddr = ntohl(addr);
564 if (IN_CLASSA(myAddr))
565 netMask = IN_CLASSA_NET;
566 else if (IN_CLASSB(myAddr))
567 netMask = IN_CLASSB_NET;
568 else if (IN_CLASSC(myAddr))
569 netMask = IN_CLASSC_NET;
573 for (j = 0; j < afs_cb_interface.numberOfInterfaces; j++) {
574 thisAddr = ntohl(afs_cb_interface.addr_in[j]);
575 subnetMask = ntohl(afs_cb_interface.subnetmask[j]);
576 if ((myAddr & netMask) == (thisAddr & netMask)) {
577 if ((myAddr & subnetMask) == (thisAddr & subnetMask)) {
578 if (myAddr == thisAddr) {
583 if (match_value < 3) {
588 if (match_value < 2) {
599 #else /* AFS_USERSPACE_IP_ADDR */
601 #if !defined(AFS_AIX41_ENV) && !defined(AFS_DUX40_ENV) && !defined(AFS_DARWIN_ENV) && !defined(AFS_XBSD_ENV)
602 #define IFADDR2SA(f) (&((f)->ifa_addr))
603 #else /* AFS_AIX41_ENV */
604 #define IFADDR2SA(f) ((f)->ifa_addr)
614 afs_uint32 addrs[ADDRSPERSITE];
615 int mtus[ADDRSPERSITE];
617 #if defined(AFS_DARWIN80_ENV)
623 struct sockaddr sout;
624 struct sockaddr_in *sin;
627 rx_ifaddr_t ifad; /* ifnet points to a if_addrlist of ifaddrs */
631 memset(addrs, 0, sizeof(addrs));
632 memset(mtus, 0, sizeof(mtus));
634 #if defined(AFS_DARWIN80_ENV)
635 if (!ifnet_list_get(AF_INET, &ifns, &count)) {
636 for (m = 0; m < count; m++) {
637 if (!ifnet_get_address_list(ifns[m], &ifads)) {
638 for (j = 0; ifads[j] != NULL && cnt < ADDRSPERSITE; j++) {
639 if ((t = ifaddr_address(ifads[j], &sout, sizeof(struct sockaddr))) == 0) {
640 sin = (struct sockaddr_in *)&sout;
641 rxmtu = rx_ifnet_mtu(rx_ifaddr_ifnet(ifads[j])) - RX_IPUDP_SIZE;
642 ifinaddr = ntohl(sin->sin_addr.s_addr);
643 if (myNetAddrs[i] != ifinaddr) {
647 rxmtu = rxi_AdjustIfMTU(rxmtu);
649 rxmtu * rxi_nRecvFrags +
650 ((rxi_nRecvFrags - 1) * UDP_HDR_SIZE);
651 maxmtu = rxi_AdjustMaxMTU(rxmtu, maxmtu);
652 addrs[i++] = ifinaddr;
653 if (!rx_IsLoopbackAddr(ifinaddr) &&
654 (maxmtu > rx_maxReceiveSize)) {
656 MIN(RX_MAX_PACKET_SIZE, maxmtu);
658 MIN(rx_maxReceiveSize, rx_maxReceiveSizeUser);
663 ifnet_free_address_list(ifads);
666 ifnet_list_free(ifns);
669 #if defined(AFS_DARWIN_ENV) || defined(AFS_FBSD_ENV)
670 TAILQ_FOREACH(ifn, &ifnet, if_link) {
671 if (i >= ADDRSPERSITE)
673 #elif defined(AFS_OBSD_ENV) || defined(AFS_NBSD_ENV)
674 for (ifn = ifnet.tqh_first; i < ADDRSPERSITE && ifn != NULL;
675 ifn = ifn->if_list.tqe_next) {
677 for (ifn = ifnet; ifn != NULL && i < ADDRSPERSITE; ifn = ifn->if_next) {
679 rxmtu = (ifn->if_mtu - RX_IPUDP_SIZE);
680 #if defined(AFS_DARWIN_ENV) || defined(AFS_FBSD_ENV)
681 TAILQ_FOREACH(ifad, &ifn->if_addrhead, ifa_link) {
682 if (i >= ADDRSPERSITE)
684 #elif defined(AFS_OBSD_ENV) || defined(AFS_NBSD_ENV)
685 for (ifad = ifn->if_addrlist.tqh_first;
686 ifad != NULL && i < ADDRSPERSITE;
687 ifad = ifad->ifa_list.tqe_next) {
689 for (ifad = ifn->if_addrlist; ifad != NULL && i < ADDRSPERSITE;
690 ifad = ifad->ifa_next) {
692 if (IFADDR2SA(ifad)->sa_family == AF_INET) {
694 ntohl(((struct sockaddr_in *)IFADDR2SA(ifad))->sin_addr.
696 if (myNetAddrs[i] != ifinaddr) {
700 rxmtu = rxi_AdjustIfMTU(rxmtu);
702 rxmtu * rxi_nRecvFrags +
703 ((rxi_nRecvFrags - 1) * UDP_HDR_SIZE);
704 maxmtu = rxi_AdjustMaxMTU(rxmtu, maxmtu);
705 addrs[i++] = ifinaddr;
706 if (!rx_IsLoopbackAddr(ifinaddr) && (maxmtu > rx_maxReceiveSize)) {
707 rx_maxReceiveSize = MIN(RX_MAX_PACKET_SIZE, maxmtu);
709 MIN(rx_maxReceiveSize, rx_maxReceiveSizeUser);
716 rx_maxJumboRecvSize =
717 RX_HEADER_SIZE + rxi_nDgramPackets * RX_JUMBOBUFFERSIZE +
718 (rxi_nDgramPackets - 1) * RX_JUMBOHEADERSIZE;
719 rx_maxJumboRecvSize = MAX(rx_maxJumboRecvSize, rx_maxReceiveSize);
723 for (l = 0; l < i; l++) {
724 myNetMTUs[l] = mtus[l];
725 myNetAddrs[l] = addrs[l];
731 #if defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
732 /* Returns ifnet which best matches address */
734 rxi_FindIfnet(afs_uint32 addr, afs_uint32 * maskp)
736 struct sockaddr_in s, sr;
739 s.sin_family = AF_INET;
740 s.sin_addr.s_addr = addr;
741 ifad = rx_ifaddr_withnet((struct sockaddr *)&s);
744 rx_ifaddr_netmask(ifad, (struct sockaddr *)&sr, sizeof(sr));
745 *maskp = sr.sin_addr.s_addr;
747 return (ifad ? rx_ifaddr_ifnet(ifad) : NULL);
750 #else /* DARWIN || XBSD */
752 /* Returns ifnet which best matches address */
754 rxi_FindIfnet(afs_uint32 addr, afs_uint32 * maskp)
757 extern struct in_ifaddr *in_ifaddr;
758 struct in_ifaddr *ifa, *ifad = NULL;
762 #if defined(AFS_DARWIN_ENV)
763 for (ifa = TAILQ_FIRST(&in_ifaddrhead); ifa;
764 ifa = TAILQ_NEXT(ifa, ia_link)) {
766 for (ifa = in_ifaddr; ifa; ifa = ifa->ia_next) {
768 if ((addr & ifa->ia_netmask) == ifa->ia_net) {
769 if ((addr & ifa->ia_subnetmask) == ifa->ia_subnet) {
770 if (IA_SIN(ifa)->sin_addr.s_addr == addr) { /* ie, ME!!! */
775 if (match_value < 3) {
780 if (match_value < 2) {
785 } /* if net matches */
786 } /* for all in_ifaddrs */
790 *maskp = ifad->ia_subnetmask;
791 return (ifad ? ifad->ia_ifp : NULL);
793 #endif /* else DARWIN || XBSD */
794 #endif /* else AFS_USERSPACE_IP_ADDR */
795 #endif /* !SUN5 && !SGI62 */
798 /* rxk_NewSocket, rxk_FreeSocket and osi_NetSend are from the now defunct
799 * afs_osinet.c. One could argue that rxi_NewSocket could go into the
800 * system specific subdirectories for all systems. But for the moment,
801 * most of it is simple to follow common code.
803 #if !defined(UKERNEL)
804 #if !defined(AFS_SUN5_ENV) && !defined(AFS_LINUX20_ENV)
805 /* rxk_NewSocket creates a new socket on the specified port. The port is
806 * in network byte order.
809 rxk_NewSocketHost(afs_uint32 ahost, short aport)
812 #ifdef AFS_DARWIN80_ENV
815 struct socket *newSocket;
817 #if (!defined(AFS_HPUX1122_ENV) && !defined(AFS_FBSD_ENV))
820 struct sockaddr_in myaddr;
821 #ifdef AFS_HPUX110_ENV
822 /* prototype copied from kernel source file streams/str_proto.h */
823 extern MBLKP allocb_wait(int, int);
825 int addrsize = sizeof(struct sockaddr_in);
827 extern struct fileops socketops;
833 AFS_STATCNT(osi_NewSocket);
834 #if (defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)) && defined(KERNEL_FUNNEL)
835 thread_funnel_switch(KERNEL_FUNNEL, NETWORK_FUNNEL);
839 #if defined(AFS_HPUX102_ENV)
840 #if defined(AFS_HPUX110_ENV)
841 /* we need a file associated with the socket so sosend in NetSend
843 /* blocking socket */
844 code = socreate(AF_INET, &newSocket, SOCK_DGRAM, 0, 0);
848 fp->f_flag = FREAD | FWRITE;
849 fp->f_type = DTYPE_SOCKET;
850 fp->f_ops = &socketops;
852 fp->f_data = (void *)newSocket;
853 newSocket->so_fp = (void *)fp;
855 #else /* AFS_HPUX110_ENV */
856 code = socreate(AF_INET, &newSocket, SOCK_DGRAM, 0, SS_NOWAIT);
857 #endif /* else AFS_HPUX110_ENV */
858 #elif defined(AFS_SGI65_ENV) || defined(AFS_OBSD_ENV)
859 code = socreate(AF_INET, &newSocket, SOCK_DGRAM, IPPROTO_UDP);
860 #elif defined(AFS_FBSD_ENV)
861 code = socreate(AF_INET, &newSocket, SOCK_DGRAM, IPPROTO_UDP,
862 afs_osi_credp, curthread);
863 #elif defined(AFS_DARWIN80_ENV)
864 #ifdef RXK_LISTENER_ENV
865 code = sock_socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP, NULL, NULL, &newSocket);
867 code = sock_socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP, rx_upcall, NULL, &newSocket);
869 #elif defined(AFS_NBSD50_ENV)
870 code = socreate(AF_INET, &newSocket, SOCK_DGRAM, 0, osi_curproc(), NULL);
871 #elif defined(AFS_NBSD40_ENV)
872 code = socreate(AF_INET, &newSocket, SOCK_DGRAM, 0, osi_curproc());
874 code = socreate(AF_INET, &newSocket, SOCK_DGRAM, 0);
875 #endif /* AFS_HPUX102_ENV */
879 memset(&myaddr, 0, sizeof myaddr);
880 myaddr.sin_family = AF_INET;
881 myaddr.sin_port = aport;
882 myaddr.sin_addr.s_addr = ahost;
883 #ifdef STRUCT_SOCKADDR_HAS_SA_LEN
884 myaddr.sin_len = sizeof(myaddr);
887 #ifdef AFS_HPUX110_ENV
888 bindnam = allocb_wait((addrsize + SO_MSGOFFSET + 1), BPRI_MED);
893 memcpy((caddr_t) bindnam->b_rptr + SO_MSGOFFSET, (caddr_t) & myaddr,
895 bindnam->b_wptr = bindnam->b_rptr + (addrsize + SO_MSGOFFSET + 1);
896 #if defined(AFS_NBSD40_ENV)
897 code = sobind(newSocket, bindnam, addrsize, osi_curproc());
899 code = sobind(newSocket, bindnam, addrsize);
903 #if !defined(AFS_HPUX1122_ENV)
910 #else /* AFS_HPUX110_ENV */
911 #if defined(AFS_DARWIN80_ENV)
916 code = sock_setsockopt(newSocket, SOL_SOCKET, SO_SNDBUF,
917 &buflen, sizeof(buflen));
918 code2 = sock_setsockopt(newSocket, SOL_SOCKET, SO_RCVBUF,
919 &buflen, sizeof(buflen));
923 osi_Panic("osi_NewSocket: last attempt to reserve 32K failed!\n");
928 code = soreserve(newSocket, 50000, 50000);
930 code = soreserve(newSocket, 32766, 32766);
932 osi_Panic("osi_NewSocket: last attempt to reserve 32K failed!\n");
935 #if defined(AFS_DARWIN_ENV) || defined(AFS_FBSD_ENV)
936 #if defined(AFS_FBSD_ENV)
937 code = sobind(newSocket, (struct sockaddr *)&myaddr, curthread);
939 code = sobind(newSocket, (struct sockaddr *)&myaddr);
942 dpf(("sobind fails (%d)\n", (int)code));
946 #else /* defined(AFS_DARWIN_ENV) || defined(AFS_FBSD_ENV) */
948 nam = m_getclr(M_WAIT, MT_SONAME);
949 #else /* AFS_OSF_ENV */
950 nam = m_get(M_WAIT, MT_SONAME);
953 #if defined(KERNEL_HAVE_UERROR)
958 nam->m_len = sizeof(myaddr);
959 memcpy(mtod(nam, caddr_t), &myaddr, sizeof(myaddr));
960 #if defined(AFS_SGI65_ENV)
961 BHV_PDATA(&bhv) = (void *)newSocket;
962 code = sobind(&bhv, nam);
964 #elif defined(AFS_OBSD44_ENV) || defined(AFS_NBSD40_ENV)
965 code = sobind(newSocket, nam, osi_curproc());
967 code = sobind(newSocket, nam);
970 dpf(("sobind fails (%d)\n", (int)code));
972 #ifndef AFS_SGI65_ENV
977 #endif /* else AFS_DARWIN_ENV */
978 #endif /* else AFS_HPUX110_ENV */
981 #if defined(AFS_DARWIN_ENV) && defined(KERNEL_FUNNEL)
982 thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
984 return (osi_socket *)newSocket;
988 #if defined(AFS_DARWIN_ENV) && defined(KERNEL_FUNNEL)
989 thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
991 return (osi_socket *)0;
995 rxk_NewSocket(short aport)
997 return rxk_NewSocketHost(0, aport);
1000 /* free socket allocated by rxk_NewSocket */
1002 rxk_FreeSocket(struct socket *asocket)
1004 AFS_STATCNT(osi_FreeSocket);
1005 #if defined(AFS_DARWIN_ENV) && defined(KERNEL_FUNNEL)
1006 thread_funnel_switch(KERNEL_FUNNEL, NETWORK_FUNNEL);
1008 #ifdef AFS_HPUX110_ENV
1009 if (asocket->so_fp) {
1010 struct file *fp = asocket->so_fp;
1011 #if !defined(AFS_HPUX1123_ENV)
1012 /* 11.23 still has falloc, but not FPENTRYFREE !
1013 * so for now if we shutdown, we will waist a file
1016 asocket->so_fp = NULL;
1019 #endif /* AFS_HPUX110_ENV */
1021 #if defined(AFS_DARWIN_ENV) && defined(KERNEL_FUNNEL)
1022 thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
1026 #endif /* !SUN5 && !LINUX20 */
1028 #if defined(RXK_LISTENER_ENV) || defined(AFS_SUN5_ENV) || defined(RXK_UPCALL_ENV)
1029 #ifdef RXK_TIMEDSLEEP_ENV
1030 /* Shutting down should wake us up, as should an earlier event. */
1032 rxi_ReScheduleEvents(void)
1034 /* needed to allow startup */
1035 int glock = ISAFS_GLOCK();
1038 osi_rxWakeup(&afs_termState);
1044 * Run RX event daemon every second (5 times faster than rest of systems)
1047 afs_rxevent_daemon(void)
1053 #ifdef RX_ENABLE_LOCKS
1055 #endif /* RX_ENABLE_LOCKS */
1057 rxevent_RaiseEvents(&temp);
1059 #ifdef RX_ENABLE_LOCKS
1061 #endif /* RX_ENABLE_LOCKS */
1062 #ifdef RX_KERNEL_TRACE
1063 afs_Trace1(afs_iclSetp, CM_TRACE_TIMESTAMP, ICL_TYPE_STRING,
1064 "before afs_osi_Wait()");
1066 #ifdef RXK_TIMEDSLEEP_ENV
1067 afs_osi_TimedSleep(&afs_termState, MAX(500, ((temp.sec * 1000) +
1068 (temp.usec / 1000))), 0);
1070 afs_osi_Wait(500, NULL, 0);
1072 #ifdef RX_KERNEL_TRACE
1073 afs_Trace1(afs_iclSetp, CM_TRACE_TIMESTAMP, ICL_TYPE_STRING,
1074 "after afs_osi_Wait()");
1076 if (afs_termState == AFSOP_STOP_RXEVENT) {
1077 #ifdef RXK_LISTENER_ENV
1078 afs_termState = AFSOP_STOP_RXK_LISTENER;
1079 #elif defined(AFS_SUN510_ENV) || defined(RXK_UPCALL_ENV)
1080 afs_termState = AFSOP_STOP_NETIF;
1082 afs_termState = AFSOP_STOP_COMPLETE;
1084 osi_rxWakeup(&afs_termState);
1091 #ifdef RXK_LISTENER_ENV
1093 /* rxk_ReadPacket returns 1 if valid packet, 0 on error. */
1095 rxk_ReadPacket(osi_socket so, struct rx_packet *p, int *host, int *port)
1098 struct sockaddr_in from;
1102 afs_int32 savelen; /* was using rlen but had aliasing problems */
1103 rx_computelen(p, tlen);
1104 rx_SetDataSize(p, tlen); /* this is the size of the user data area */
1106 tlen += RX_HEADER_SIZE; /* now this is the size of the entire packet */
1107 rlen = rx_maxJumboRecvSize; /* this is what I am advertising. Only check
1108 * it once in order to avoid races. */
1111 tlen = rxi_AllocDataBuf(p, tlen, RX_PACKET_CLASS_RECV_CBUF);
1119 /* add some padding to the last iovec, it's just to make sure that the
1120 * read doesn't return more data than we expect, and is done to get around
1121 * our problems caused by the lack of a length field in the rx header. */
1122 savelen = p->wirevec[p->niovecs - 1].iov_len;
1123 p->wirevec[p->niovecs - 1].iov_len = savelen + RX_EXTRABUFFERSIZE;
1125 nbytes = tlen + sizeof(afs_int32);
1126 #ifdef RX_KERNEL_TRACE
1127 if (ICL_SETACTIVE(afs_iclSetp)) {
1129 afs_Trace1(afs_iclSetp, CM_TRACE_TIMESTAMP, ICL_TYPE_STRING,
1130 "before osi_NetRecive()");
1134 code = osi_NetReceive(rx_socket, &from, p->wirevec, p->niovecs, &nbytes);
1136 #ifdef RX_KERNEL_TRACE
1137 if (ICL_SETACTIVE(afs_iclSetp)) {
1139 afs_Trace1(afs_iclSetp, CM_TRACE_TIMESTAMP, ICL_TYPE_STRING,
1140 "after osi_NetRecive()");
1144 /* restore the vec to its correct state */
1145 p->wirevec[p->niovecs - 1].iov_len = savelen;
1148 p->length = nbytes - RX_HEADER_SIZE;;
1149 if ((nbytes > tlen) || (p->length & 0x8000)) { /* Bogus packet */
1151 if (rx_stats_active) {
1152 MUTEX_ENTER(&rx_stats_mutex);
1153 rx_atomic_inc(&rx_stats.bogusPacketOnRead);
1154 rx_stats.bogusHost = from.sin_addr.s_addr;
1155 MUTEX_EXIT(&rx_stats_mutex);
1157 dpf(("B: bogus packet from [%x,%d] nb=%d\n",
1158 from.sin_addr.s_addr, from.sin_port, nbytes));
1162 /* Extract packet header. */
1163 rxi_DecodePacketHeader(p);
1165 *host = from.sin_addr.s_addr;
1166 *port = from.sin_port;
1167 if (p->header.type > 0 && p->header.type < RX_N_PACKET_TYPES) {
1168 if (rx_stats_active) {
1169 rx_atomic_inc(&rx_stats.packetsRead[p->header.type - 1]);
1173 #ifdef RX_TRIMDATABUFS
1174 /* Free any empty packet buffers at the end of this packet */
1175 rxi_TrimDataBufs(p, 1);
1185 * Listen for packets on socket. This thread is typically started after
1186 * rx_Init has called rxi_StartListener(), but nevertheless, ensures that
1187 * the start state is set before proceeding.
1189 * Note that this thread is outside the AFS global lock for much of
1192 * In many OS's, the socket receive code sleeps interruptibly. That's not what
1193 * we want here. So we need to either block all signals (including SIGKILL
1194 * and SIGSTOP) or reset the thread's signal state to unsignalled when the
1195 * OS's socket receive routine returns as a result of a signal.
1197 int rxk_ListenerPid; /* Used to signal process to wakeup at shutdown */
1198 #ifdef AFS_LINUX20_ENV
1199 struct task_struct *rxk_ListenerTask;
1205 struct rx_packet *rxp = NULL;
1209 #ifdef AFS_LINUX20_ENV
1210 rxk_ListenerPid = current->pid;
1211 rxk_ListenerTask = current;
1214 rxk_ListenerPid = 1; /* No PID, just a flag that we're alive */
1215 #endif /* AFS_SUN5_ENV */
1217 rxk_ListenerPid = curproc->p_pid;
1218 #endif /* AFS_FBSD_ENV */
1219 #ifdef AFS_DARWIN80_ENV
1220 rxk_ListenerPid = proc_selfpid();
1221 #elif defined(AFS_DARWIN_ENV)
1222 rxk_ListenerPid = current_proc()->p_pid;
1224 #ifdef RX_ENABLE_LOCKS
1226 #endif /* RX_ENABLE_LOCKS */
1227 while (afs_termState != AFSOP_STOP_RXK_LISTENER) {
1228 /* See if a check for additional packets was issued */
1232 rxi_RestoreDataBufs(rxp);
1234 rxp = rxi_AllocPacket(RX_PACKET_CLASS_RECEIVE);
1236 osi_Panic("rxk_Listener: No more Rx buffers!\n");
1238 if (!(code = rxk_ReadPacket(rx_socket, rxp, &host, &port))) {
1239 rxp = rxi_ReceivePacket(rxp, rx_socket, host, port, 0, 0);
1243 #ifdef RX_ENABLE_LOCKS
1245 #endif /* RX_ENABLE_LOCKS */
1246 if (afs_termState == AFSOP_STOP_RXK_LISTENER) {
1247 #ifdef AFS_SUN510_ENV
1248 afs_termState = AFSOP_STOP_NETIF;
1250 afs_termState = AFSOP_STOP_COMPLETE;
1252 osi_rxWakeup(&afs_termState);
1254 rxk_ListenerPid = 0;
1255 #ifdef AFS_LINUX20_ENV
1256 rxk_ListenerTask = 0;
1257 osi_rxWakeup(&rxk_ListenerTask);
1259 #if defined(AFS_SUN5_ENV) || defined(AFS_FBSD_ENV)
1260 osi_rxWakeup(&rxk_ListenerPid);
1264 #if !defined(AFS_LINUX20_ENV) && !defined(AFS_SUN5_ENV) && !defined(AFS_DARWIN_ENV) && !defined(AFS_XBSD_ENV)
1265 /* The manner of stopping the rx listener thread may vary. Most unix's should
1266 * be able to call soclose.
1269 osi_StopListener(void)
1274 #endif /* RXK_LISTENER_ENV */
1275 #endif /* !NCR && !UKERNEL */
1277 #if !defined(AFS_LINUX26_ENV)
1279 #if defined(AFS_AIX_ENV)
1280 osi_Panic(char *msg, void *a1, void *a2, void *a3)
1282 osi_Panic(char *msg, ...)
1287 msg = "Unknown AFS panic";
1289 * we should probably use the errsave facility here. it is not
1293 printf(msg, a1, a2, a3);
1295 #elif defined(AFS_SGI_ENV)
1298 /* Solaris has vcmn_err, Sol10 01/06 may have issues. Beware. */
1300 cmn_err(CE_PANIC, "Unknown AFS panic");
1303 icmn_err(CE_PANIC, msg, ap);
1306 #elif defined(AFS_DARWIN80_ENV) || (defined(AFS_LINUX22_ENV) && !defined(AFS_LINUX_26_ENV))
1310 msg = "Unknown AFS panic";
1313 vsnprintf(buf, sizeof(buf), msg, ap);
1320 msg = "Unknown AFS panic";
1325 # ifdef AFS_LINUX20_ENV