2 * Copyright (c) 1993, 1994, 1995, 1996, 1997
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that: (1) source code distributions
7 * retain the above copyright notice and this paragraph in its entirety, (2)
8 * distributions including binary code include the above copyright notice and
9 * this paragraph in its entirety in the documentation or other materials
10 * provided with the distribution, and (3) all advertising materials mentioning
11 * features or use of this software display the following acknowledgement:
12 * ``This product includes software developed by the University of California,
13 * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
14 * the University nor the names of its contributors may be used to endorse
15 * or promote products derived from this software without specific prior
17 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
18 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
19 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
21 * This code contributed by Atanu Ghosh (atanu@cs.ucl.ac.uk),
22 * University College London.
26 * Packet capture routine for DLPI under SunOS 5, HP-UX 9/10/11, and AIX.
30 * - Apparently the DLIOCRAW ioctl() is specific to SunOS.
32 * - There is a bug in bufmod(7) such that setting the snapshot
33 * length results in data being left of the front of the packet.
35 * - It might be desirable to use pfmod(7) to filter packets in the
36 * kernel when possible.
40 static const char rcsid[] _U_ =
41 "@(#) $Header: /tcpdump/master/libpcap/pcap-dlpi.c,v 1.91.2.3 2003/11/21 10:20:46 guy Exp $ (LBL)";
48 #include <sys/types.h>
50 #ifdef HAVE_SYS_BUFMOD_H
51 #include <sys/bufmod.h>
54 #ifdef HAVE_SYS_DLPI_EXT_H
55 #include <sys/dlpi_ext.h>
58 #include <sys/socket.h>
60 #ifdef DL_HP_PPA_ACK_OBS
63 #include <sys/stream.h>
64 #if defined(HAVE_SOLARIS) && defined(HAVE_SYS_BUFMOD_H)
65 #include <sys/systeminfo.h>
87 #ifdef HAVE_OS_PROTO_H
91 #ifndef PCAP_DEV_PREFIX
93 #define PCAP_DEV_PREFIX "/dev/dlpi"
95 #define PCAP_DEV_PREFIX "/dev"
101 #ifdef HAVE_SYS_BUFMOD_H
104 * Size of a bufmod chunk to pass upstream; that appears to be the biggest
105 * value to which you can set it, and setting it to that value (which
106 * is bigger than what appears to be the Solaris default of 8192)
107 * reduces the number of packet drops.
109 #define CHUNKSIZE 65536
112 * Size of the buffer to allocate for packet data we read; it must be
113 * large enough to hold a chunk.
115 #define PKTBUFSIZE CHUNKSIZE
117 #else /* HAVE_SYS_BUFMOD_H */
120 * Size of the buffer to allocate for packet data we read; this is
121 * what the value used to be - there's no particular reason why it
122 * should be tied to MAXDLBUF, but we'll leave it as this for now.
124 #define PKTBUFSIZE (MAXDLBUF * sizeof(bpf_u_int32))
129 static char *split_dname(char *, int *, char *);
130 static int dlattachreq(int, bpf_u_int32, char *);
131 static int dlbindack(int, char *, char *);
132 static int dlbindreq(int, bpf_u_int32, char *);
133 static int dlinfoack(int, char *, char *);
134 static int dlinforeq(int, char *);
135 static int dlokack(int, const char *, char *, char *);
136 static int recv_ack(int, int, const char *, char *, char *);
137 static char *dlstrerror(bpf_u_int32);
138 static char *dlprim(bpf_u_int32);
139 static int dlpromisconreq(int, bpf_u_int32, char *);
140 #if defined(HAVE_SOLARIS) && defined(HAVE_SYS_BUFMOD_H)
141 static char *get_release(bpf_u_int32 *, bpf_u_int32 *, bpf_u_int32 *);
143 static int send_request(int, char *, int, char *, char *);
144 #ifdef HAVE_SYS_BUFMOD_H
145 static int strioctl(int, int, int, char *);
148 static int dlpi_kread(int, off_t, void *, u_int, char *);
151 static int get_dlpi_ppa(int, const char *, int, char *);
155 pcap_stats_dlpi(pcap_t *p, struct pcap_stat *ps)
159 * "ps_recv" counts packets handed to the filter, not packets
160 * that passed the filter. As filtering is done in userland,
161 * this does not include packets dropped because we ran out
164 * "ps_drop" counts packets dropped inside the DLPI service
165 * provider device device because of flow control requirements
166 * or resource exhaustion; it doesn't count packets dropped by
167 * the interface driver, or packets dropped upstream. As
168 * filtering is done in userland, it counts packets regardless
169 * of whether they would've passed the filter.
171 * These statistics don't include packets not yet read from
172 * the kernel by libpcap, but they may include packets not
173 * yet read from libpcap by the application.
179 /* XXX Needed by HP-UX (at least) */
180 static bpf_u_int32 ctlbuf[MAXDLBUF];
181 static struct strbuf ctl = {
188 pcap_read_dlpi(pcap_t *p, int cnt, pcap_handler callback, u_char *user)
190 register int cc, n, caplen, origlen;
191 register u_char *bp, *ep, *pk;
192 register struct bpf_insn *fcode;
193 #ifdef HAVE_SYS_BUFMOD_H
194 register struct sb_hdr *sbp;
201 struct pcap_pkthdr pkthdr;
206 data.buf = (char *)p->buffer + p->offset;
207 data.maxlen = p->bufsize;
211 * Has "pcap_breakloop()" been called?
215 * Yes - clear the flag that indicates
216 * that it has, and return -2 to
217 * indicate that we were told to
218 * break out of the loop.
223 if (getmsg(p->fd, &ctl, &data, &flags) < 0) {
224 /* Don't choke when we get ptraced */
225 if (errno == EINTR) {
229 strlcpy(p->errbuf, pcap_strerror(errno),
235 bp = p->buffer + p->offset;
239 /* Loop through packets */
240 fcode = p->fcode.bf_insns;
243 #ifdef HAVE_SYS_BUFMOD_H
246 * Has "pcap_breakloop()" been called?
247 * If so, return immediately - if we haven't read any
248 * packets, clear the flag and return -2 to indicate
249 * that we were told to break out of the loop, otherwise
250 * leave the flag set, so that the *next* call will break
251 * out of the loop without having read any packets, and
252 * return the number of packets we've processed so far.
267 memcpy(sbp, bp, sizeof(*sbp));
270 sbp = (struct sb_hdr *)bp;
271 p->md.stat.ps_drop = sbp->sbh_drops;
272 pk = bp + sizeof(*sbp);
273 bp += sbp->sbh_totlen;
274 origlen = sbp->sbh_origlen;
275 caplen = sbp->sbh_msglen;
278 caplen = min(p->snapshot, cc);
282 ++p->md.stat.ps_recv;
283 if (bpf_filter(fcode, pk, origlen, caplen)) {
284 #ifdef HAVE_SYS_BUFMOD_H
285 pkthdr.ts.tv_sec = sbp->sbh_timestamp.tv_sec;
286 pkthdr.ts.tv_usec = sbp->sbh_timestamp.tv_usec;
288 (void)gettimeofday(&pkthdr.ts, NULL);
290 pkthdr.len = origlen;
291 pkthdr.caplen = caplen;
292 /* Insure caplen does not exceed snapshot */
293 if (pkthdr.caplen > p->snapshot)
294 pkthdr.caplen = p->snapshot;
295 (*callback)(user, &pkthdr, pk);
296 if (++n >= cnt && cnt >= 0) {
302 #ifdef HAVE_SYS_BUFMOD_H
310 #define DL_IPATM 0x12 /* ATM Classical IP interface */
318 #define A_GET_UNITS (('A'<<8)|118)
319 #endif /* A_GET_UNITS */
320 #ifndef A_PROMISCON_REQ
321 #define A_PROMISCON_REQ (('A'<<8)|121)
322 #endif /* A_PROMISCON_REQ */
323 #endif /* HAVE_SOLARIS */
326 pcap_close_dlpi(pcap_t *p)
328 if (p->buffer != NULL)
335 pcap_open_live(const char *device, int snaplen, int promisc, int to_ms,
344 register dl_info_ack_t *infop;
345 #ifdef HAVE_SYS_BUFMOD_H
346 bpf_u_int32 ss, chunksize;
348 register char *release;
349 bpf_u_int32 osmajor, osminor, osmicro;
352 bpf_u_int32 buf[MAXDLBUF];
354 #ifndef HAVE_DEV_DLPI
358 p = (pcap_t *)malloc(sizeof(*p));
360 strlcpy(ebuf, pcap_strerror(errno), PCAP_ERRBUF_SIZE);
363 memset(p, 0, sizeof(*p));
364 p->fd = -1; /* indicate that it hasn't been opened yet */
368 ** Remove any "/dev/" on the front of the device.
370 cp = strrchr(device, '/');
372 strlcpy(dname, device, sizeof(dname));
374 strlcpy(dname, cp + 1, sizeof(dname));
377 * Split the device name into a device type name and a unit number;
378 * chop off the unit number, so "dname" is just a device type name.
380 cp = split_dname(dname, &ppa, ebuf);
386 * Use "/dev/dlpi" as the device.
388 * XXX - HP's DLPI Programmer's Guide for HP-UX 11.00 says that
389 * the "dl_mjr_num" field is for the "major number of interface
390 * driver"; that's the major of "/dev/dlpi" on the system on
391 * which I tried this, but there may be DLPI devices that
392 * use a different driver, in which case we may need to
393 * search "/dev" for the appropriate device with that major
394 * device number, rather than hardwiring "/dev/dlpi".
397 if ((p->fd = open(cp, O_RDWR)) < 0) {
398 snprintf(ebuf, PCAP_ERRBUF_SIZE,
399 "%s: %s", cp, pcap_strerror(errno));
404 * Get a table of all PPAs for that device, and search that
405 * table for the specified device type name and unit number.
407 ppa = get_dlpi_ppa(p->fd, dname, ppa, ebuf);
412 * If the device name begins with "/", assume it begins with
413 * the pathname of the directory containing the device to open;
414 * otherwise, concatenate the device directory name and the
418 strlcpy(dname, device, sizeof(dname));
420 snprintf(dname, sizeof(dname), "%s/%s", PCAP_DEV_PREFIX,
424 * Get the unit number, and a pointer to the end of the device
427 cp = split_dname(dname, &ppa, ebuf);
432 * Make a copy of the device pathname, and then remove the unit
433 * number from the device pathname.
435 strlcpy(dname2, dname, sizeof(dname));
438 /* Try device without unit number */
439 if ((p->fd = open(dname, O_RDWR)) < 0) {
440 if (errno != ENOENT) {
441 snprintf(ebuf, PCAP_ERRBUF_SIZE, "%s: %s", dname,
442 pcap_strerror(errno));
446 /* Try again with unit number */
447 if ((p->fd = open(dname2, O_RDWR)) < 0) {
448 snprintf(ebuf, PCAP_ERRBUF_SIZE, "%s: %s", dname2,
449 pcap_strerror(errno));
452 /* XXX Assume unit zero */
457 p->snapshot = snaplen;
460 ** Attach if "style 2" provider
462 if (dlinforeq(p->fd, ebuf) < 0 ||
463 dlinfoack(p->fd, (char *)buf, ebuf) < 0)
465 infop = &((union DL_primitives *)buf)->info_ack;
467 if (infop->dl_mac_type == DL_IPATM)
470 if (infop->dl_provider_style == DL_STYLE2 &&
471 (dlattachreq(p->fd, ppa, ebuf) < 0 ||
472 dlokack(p->fd, "attach", (char *)buf, ebuf) < 0))
475 ** Bind (defer if using HP-UX 9 or HP-UX 10.20, totally skip if
478 #if !defined(HAVE_HPUX9) && !defined(HAVE_HPUX10_20) && !defined(sinix)
480 /* According to IBM's AIX Support Line, the dl_sap value
481 ** should not be less than 0x600 (1536) for standard Ethernet.
482 ** However, we seem to get DL_BADADDR - "DLSAP addr in improper
483 ** format or invalid" - errors if we use 1537 on the "tr0"
484 ** device, which, given that its name starts with "tr" and that
485 ** it's IBM, probably means a Token Ring device. (Perhaps we
486 ** need to use 1537 on "/dev/dlpi/en" because that device is for
487 ** D/I/X Ethernet, the "SAP" is actually an Ethernet type, and
488 ** it rejects invalid Ethernet types.)
490 ** So if 1537 fails, we try 2, as Hyung Sik Yoon of IBM Korea
491 ** says that works on Token Ring (he says that 0 does *not*
492 ** work; perhaps that's considered an invalid LLC SAP value - I
493 ** assume the SAP value in a DLPI bind is an LLC SAP for network
494 ** types that use 802.2 LLC).
496 if ((dlbindreq(p->fd, 1537, ebuf) < 0 &&
497 dlbindreq(p->fd, 2, ebuf) < 0) ||
499 if (dlbindreq(p->fd, 0, ebuf) < 0 ||
501 dlbindack(p->fd, (char *)buf, ebuf) < 0)
508 ** Have to turn on some special ATM promiscuous mode
510 ** Do *NOT* turn regular promiscuous mode on; it doesn't
511 ** help, and may break things.
513 if (strioctl(p->fd, A_PROMISCON_REQ, 0, NULL) < 0) {
514 snprintf(ebuf, PCAP_ERRBUF_SIZE, "A_PROMISCON_REQ: %s",
515 pcap_strerror(errno));
522 ** Enable promiscuous
524 if (dlpromisconreq(p->fd, DL_PROMISC_PHYS, ebuf) < 0 ||
525 dlokack(p->fd, "promisc_phys", (char *)buf, ebuf) < 0)
529 ** Try to enable multicast (you would have thought
530 ** promiscuous would be sufficient). (Skip if using
533 #if !defined(__hpux) && !defined(sinix)
534 if (dlpromisconreq(p->fd, DL_PROMISC_MULTI, ebuf) < 0 ||
535 dlokack(p->fd, "promisc_multi", (char *)buf, ebuf) < 0)
537 "WARNING: DL_PROMISC_MULTI failed (%s)\n", ebuf);
541 ** Try to enable sap (when not in promiscuous mode when using
542 ** using HP-UX, when not doing SunATM on Solaris, and never
553 (dlpromisconreq(p->fd, DL_PROMISC_SAP, ebuf) < 0 ||
554 dlokack(p->fd, "promisc_sap", (char *)buf, ebuf) < 0)) {
555 /* Not fatal if promisc since the DL_PROMISC_PHYS worked */
558 "WARNING: DL_PROMISC_SAP failed (%s)\n", ebuf);
565 ** HP-UX 9 and HP-UX 10.20 must bind after setting promiscuous
568 #if defined(HAVE_HPUX9) || defined(HAVE_HPUX10_20)
569 if (dlbindreq(p->fd, 0, ebuf) < 0 ||
570 dlbindack(p->fd, (char *)buf, ebuf) < 0)
575 ** Determine link type
577 if (dlinforeq(p->fd, ebuf) < 0 ||
578 dlinfoack(p->fd, (char *)buf, ebuf) < 0)
581 infop = &((union DL_primitives *)buf)->info_ack;
582 switch (infop->dl_mac_type) {
586 p->linktype = DLT_EN10MB;
591 p->linktype = DLT_FDDI;
596 p->linktype = DLT_IEEE802;
602 p->linktype = DLT_SUNATM;
603 p->offset = 0; /* works for LANE and LLC encapsulation */
608 snprintf(ebuf, PCAP_ERRBUF_SIZE, "unknown mac type %lu",
609 (unsigned long)infop->dl_mac_type);
615 ** This is a non standard SunOS hack to get the full raw link-layer
618 if (strioctl(p->fd, DLIOCRAW, 0, NULL) < 0) {
619 snprintf(ebuf, PCAP_ERRBUF_SIZE, "DLIOCRAW: %s",
620 pcap_strerror(errno));
625 #ifdef HAVE_SYS_BUFMOD_H
627 ** Another non standard call to get the data nicely buffered
629 if (ioctl(p->fd, I_PUSH, "bufmod") != 0) {
630 snprintf(ebuf, PCAP_ERRBUF_SIZE, "I_PUSH bufmod: %s",
631 pcap_strerror(errno));
636 ** Now that the bufmod is pushed lets configure it.
638 ** There is a bug in bufmod(7). When dealing with messages of
639 ** less than snaplen size it strips data from the beginning not
642 ** This bug is supposed to be fixed in 5.3.2. Also, there is a
643 ** patch available. Ask for bugid 1149065.
647 release = get_release(&osmajor, &osminor, &osmicro);
648 if (osmajor == 5 && (osminor <= 2 || (osminor == 3 && osmicro < 2)) &&
649 getenv("BUFMOD_FIXED") == NULL) {
651 "WARNING: bufmod is broken in SunOS %s; ignoring snaplen.\n",
657 strioctl(p->fd, SBIOCSSNAP, sizeof(ss), (char *)&ss) != 0) {
658 snprintf(ebuf, PCAP_ERRBUF_SIZE, "SBIOCSSNAP: %s",
659 pcap_strerror(errno));
664 ** Set up the bufmod timeout
669 to.tv_sec = to_ms / 1000;
670 to.tv_usec = (to_ms * 1000) % 1000000;
671 if (strioctl(p->fd, SBIOCSTIME, sizeof(to), (char *)&to) != 0) {
672 snprintf(ebuf, PCAP_ERRBUF_SIZE, "SBIOCSTIME: %s",
673 pcap_strerror(errno));
679 ** Set the chunk length.
681 chunksize = CHUNKSIZE;
682 if (strioctl(p->fd, SBIOCSCHUNK, sizeof(chunksize), (char *)&chunksize)
684 snprintf(ebuf, PCAP_ERRBUF_SIZE, "SBIOCSCHUNKP: %s",
685 pcap_strerror(errno));
691 ** As the last operation flush the read side.
693 if (ioctl(p->fd, I_FLUSH, FLUSHR) != 0) {
694 snprintf(ebuf, PCAP_ERRBUF_SIZE, "FLUSHR: %s",
695 pcap_strerror(errno));
699 /* Allocate data buffer */
700 p->bufsize = PKTBUFSIZE;
701 p->buffer = (u_char *)malloc(p->bufsize + p->offset);
702 if (p->buffer == NULL) {
703 strlcpy(ebuf, pcap_strerror(errno), PCAP_ERRBUF_SIZE);
708 * "p->fd" is an FD for a STREAMS device, so "select()" and
709 * "poll()" should work on it.
711 p->selectable_fd = p->fd;
713 p->read_op = pcap_read_dlpi;
714 p->setfilter_op = install_bpf_program; /* no kernel filtering */
715 p->set_datalink_op = NULL; /* can't change data link type */
716 p->getnonblock_op = pcap_getnonblock_fd;
717 p->setnonblock_op = pcap_setnonblock_fd;
718 p->stats_op = pcap_stats_dlpi;
719 p->close_op = pcap_close_dlpi;
730 * Split a device name into a device type name and a unit number;
731 * return the a pointer to the beginning of the unit number, which
732 * is the end of the device type name, and set "*unitp" to the unit
735 * Returns NULL on error, and fills "ebuf" with an error message.
738 split_dname(char *device, int *unitp, char *ebuf)
745 * Look for a number at the end of the device name string.
747 cp = device + strlen(device) - 1;
748 if (*cp < '0' || *cp > '9') {
749 snprintf(ebuf, PCAP_ERRBUF_SIZE, "%s missing unit number",
754 /* Digits at end of string are unit number */
755 while (cp-1 >= device && *(cp-1) >= '0' && *(cp-1) <= '9')
758 unit = strtol(cp, &eos, 10);
760 snprintf(ebuf, PCAP_ERRBUF_SIZE, "%s bad unit number", device);
768 pcap_platform_finddevs(pcap_if_t **alldevsp, char *errbuf)
774 char pad[516]; /* XXX - must be at least 513; is 516
781 * We may have to do special magic to get ATM devices.
783 if ((fd = open("/dev/ba", O_RDWR)) < 0) {
785 * We couldn't open the "ba" device.
786 * For now, just give up; perhaps we should
787 * return an error if the problem is neither
788 * a "that device doesn't exist" error (ENOENT,
789 * ENXIO, etc.) or a "you're not allowed to do
790 * that" error (EPERM, EACCES).
795 if (strioctl(fd, A_GET_UNITS, sizeof(buf), (char *)&buf) < 0) {
796 snprintf(errbuf, PCAP_ERRBUF_SIZE, "A_GET_UNITS: %s",
797 pcap_strerror(errno));
800 for (i = 0; i < buf.nunits; i++) {
801 snprintf(baname, sizeof baname, "ba%u", i);
802 if (pcap_add_if(alldevsp, baname, 0, NULL, errbuf) < 0)
811 send_request(int fd, char *ptr, int len, char *what, char *ebuf)
821 if (putmsg(fd, &ctl, (struct strbuf *) NULL, flags) < 0) {
822 snprintf(ebuf, PCAP_ERRBUF_SIZE,
823 "send_request: putmsg \"%s\": %s",
824 what, pcap_strerror(errno));
831 recv_ack(int fd, int size, const char *what, char *bufp, char *ebuf)
833 union DL_primitives *dlp;
837 ctl.maxlen = MAXDLBUF;
842 if (getmsg(fd, &ctl, (struct strbuf*)NULL, &flags) < 0) {
843 snprintf(ebuf, PCAP_ERRBUF_SIZE, "recv_ack: %s getmsg: %s",
844 what, pcap_strerror(errno));
848 dlp = (union DL_primitives *) ctl.buf;
849 switch (dlp->dl_primitive) {
861 switch (dlp->error_ack.dl_errno) {
864 snprintf(ebuf, PCAP_ERRBUF_SIZE,
865 "recv_ack: %s: UNIX error - %s",
866 what, pcap_strerror(dlp->error_ack.dl_unix_errno));
870 snprintf(ebuf, PCAP_ERRBUF_SIZE, "recv_ack: %s: %s",
871 what, dlstrerror(dlp->error_ack.dl_errno));
877 snprintf(ebuf, PCAP_ERRBUF_SIZE,
878 "recv_ack: %s: Unexpected primitive ack %s",
879 what, dlprim(dlp->dl_primitive));
883 if (ctl.len < size) {
884 snprintf(ebuf, PCAP_ERRBUF_SIZE,
885 "recv_ack: %s: Ack too small (%d < %d)",
886 what, ctl.len, size);
893 dlstrerror(bpf_u_int32 dl_errno)
895 static char errstring[6+2+8+1];
900 return ("Improper permissions for request");
903 return ("DLSAP addr in improper format or invalid");
906 return ("Seq number not from outstand DL_CONN_IND");
909 return ("User data exceeded provider limit");
914 * With a single "/dev/dlpi" device used for all
915 * DLPI providers, PPAs have nothing to do with
918 return ("Specified PPA was invalid");
921 * We have separate devices for separate devices;
922 * the PPA is just the unit number.
924 return ("Specified PPA (device unit) was invalid");
928 return ("Primitive received not known by provider");
931 return ("QOS parameters contained invalid values");
934 return ("QOS structure type is unknown/unsupported");
937 return ("Bad LSAP selector");
940 return ("Token used not an active stream");
943 return ("Attempted second bind with dl_max_conind");
946 return ("Physical link initialization failed");
949 return ("Provider couldn't allocate alternate address");
952 return ("Physical link not initialized");
955 return ("Primitive issued in improper state");
958 return ("UNIX system error occurred");
961 return ("Requested service not supplied by provider");
963 case DL_UNDELIVERABLE:
964 return ("Previous data unit could not be delivered");
966 case DL_NOTSUPPORTED:
967 return ("Primitive is known but not supported");
970 return ("Limit exceeded");
973 return ("Promiscuous mode not enabled");
976 return ("Other streams for PPA in post-attached");
979 return ("Automatic handling XID&TEST not supported");
982 return ("Automatic handling of XID not supported");
985 return ("Automatic handling of TEST not supported");
988 return ("Automatic handling of XID response");
991 return ("Automatic handling of TEST response");
994 return ("Pending outstanding connect indications");
997 sprintf(errstring, "Error %02x", dl_errno);
1003 dlprim(bpf_u_int32 prim)
1005 static char primbuf[80];
1010 return ("DL_INFO_REQ");
1013 return ("DL_INFO_ACK");
1016 return ("DL_ATTACH_REQ");
1019 return ("DL_DETACH_REQ");
1022 return ("DL_BIND_REQ");
1025 return ("DL_BIND_ACK");
1028 return ("DL_UNBIND_REQ");
1031 return ("DL_OK_ACK");
1034 return ("DL_ERROR_ACK");
1036 case DL_SUBS_BIND_REQ:
1037 return ("DL_SUBS_BIND_REQ");
1039 case DL_SUBS_BIND_ACK:
1040 return ("DL_SUBS_BIND_ACK");
1042 case DL_UNITDATA_REQ:
1043 return ("DL_UNITDATA_REQ");
1045 case DL_UNITDATA_IND:
1046 return ("DL_UNITDATA_IND");
1048 case DL_UDERROR_IND:
1049 return ("DL_UDERROR_IND");
1052 return ("DL_UDQOS_REQ");
1054 case DL_CONNECT_REQ:
1055 return ("DL_CONNECT_REQ");
1057 case DL_CONNECT_IND:
1058 return ("DL_CONNECT_IND");
1060 case DL_CONNECT_RES:
1061 return ("DL_CONNECT_RES");
1063 case DL_CONNECT_CON:
1064 return ("DL_CONNECT_CON");
1067 return ("DL_TOKEN_REQ");
1070 return ("DL_TOKEN_ACK");
1072 case DL_DISCONNECT_REQ:
1073 return ("DL_DISCONNECT_REQ");
1075 case DL_DISCONNECT_IND:
1076 return ("DL_DISCONNECT_IND");
1079 return ("DL_RESET_REQ");
1082 return ("DL_RESET_IND");
1085 return ("DL_RESET_RES");
1088 return ("DL_RESET_CON");
1091 (void) sprintf(primbuf, "unknown primitive 0x%x", prim);
1097 dlattachreq(int fd, bpf_u_int32 ppa, char *ebuf)
1099 dl_attach_req_t req;
1101 req.dl_primitive = DL_ATTACH_REQ;
1104 return (send_request(fd, (char *)&req, sizeof(req), "attach", ebuf));
1108 dlbindreq(int fd, bpf_u_int32 sap, char *ebuf)
1113 memset((char *)&req, 0, sizeof(req));
1114 req.dl_primitive = DL_BIND_REQ;
1116 req.dl_max_conind = 1; /* XXX magic number */
1117 /* 22 is INSAP as per the HP-UX DLPI Programmer's Guide */
1119 req.dl_service_mode = DL_HP_RAWDLS;
1123 req.dl_service_mode = DL_CLDLS;
1127 return (send_request(fd, (char *)&req, sizeof(req), "bind", ebuf));
1131 dlbindack(int fd, char *bufp, char *ebuf)
1134 return (recv_ack(fd, DL_BIND_ACK_SIZE, "bind", bufp, ebuf));
1138 dlpromisconreq(int fd, bpf_u_int32 level, char *ebuf)
1140 dl_promiscon_req_t req;
1142 req.dl_primitive = DL_PROMISCON_REQ;
1143 req.dl_level = level;
1145 return (send_request(fd, (char *)&req, sizeof(req), "promiscon", ebuf));
1149 dlokack(int fd, const char *what, char *bufp, char *ebuf)
1152 return (recv_ack(fd, DL_OK_ACK_SIZE, what, bufp, ebuf));
1157 dlinforeq(int fd, char *ebuf)
1161 req.dl_primitive = DL_INFO_REQ;
1163 return (send_request(fd, (char *)&req, sizeof(req), "info", ebuf));
1167 dlinfoack(int fd, char *bufp, char *ebuf)
1170 return (recv_ack(fd, DL_INFO_ACK_SIZE, "info", bufp, ebuf));
1173 #ifdef HAVE_SYS_BUFMOD_H
1175 strioctl(int fd, int cmd, int len, char *dp)
1177 struct strioctl str;
1184 rc = ioctl(fd, I_STR, &str);
1189 return (str.ic_len);
1193 #if defined(HAVE_SOLARIS) && defined(HAVE_SYS_BUFMOD_H)
1195 get_release(bpf_u_int32 *majorp, bpf_u_int32 *minorp, bpf_u_int32 *microp)
1198 static char buf[32];
1203 if (sysinfo(SI_RELEASE, buf, sizeof(buf)) < 0)
1206 if (!isdigit((unsigned char)*cp))
1208 *majorp = strtol(cp, &cp, 10);
1211 *minorp = strtol(cp, &cp, 10);
1214 *microp = strtol(cp, &cp, 10);
1219 #ifdef DL_HP_PPA_ACK_OBS
1221 * Under HP-UX 10 and HP-UX 11, we can ask for the ppa
1226 * Determine ppa number that specifies ifname.
1228 * If the "dl_hp_ppa_info_t" doesn't have a "dl_module_id_1" member,
1229 * the code that's used here is the old code for HP-UX 10.x.
1231 * However, HP-UX 10.20, at least, appears to have such a member
1232 * in its "dl_hp_ppa_info_t" structure, so the new code is used.
1233 * The new code didn't work on an old 10.20 system on which Rick
1234 * Jones of HP tried it, but with later patches installed, it
1235 * worked - it appears that the older system had those members but
1236 * didn't put anything in them, so, if the search by name fails, we
1237 * do the old search.
1239 * Rick suggests that making sure your system is "up on the latest
1240 * lancommon/DLPI/driver patches" is probably a good idea; it'd fix
1241 * that problem, as well as allowing libpcap to see packets sent
1242 * from the system on which the libpcap application is being run.
1243 * (On 10.20, in addition to getting the latest patches, you need
1244 * to turn the kernel "lanc_outbound_promisc_flag" flag on with ADB;
1245 * a posting to "comp.sys.hp.hpux" at
1247 * http://www.deja.com/[ST_rn=ps]/getdoc.xp?AN=558092266
1249 * says that, to see the machine's outgoing traffic, you'd need to
1250 * apply the right patches to your system, and also set that variable
1253 echo 'lanc_outbound_promisc_flag/W1' | /usr/bin/adb -w /stand/vmunix /dev/kmem
1255 * which could be put in, for example, "/sbin/init.d/lan".
1257 * Setting the variable is not necessary on HP-UX 11.x.
1260 get_dlpi_ppa(register int fd, register const char *device, register int unit,
1261 register char *ebuf)
1263 register dl_hp_ppa_ack_t *ap;
1264 register dl_hp_ppa_info_t *ipstart, *ip;
1267 register u_long majdev;
1268 struct stat statbuf;
1269 dl_hp_ppa_req_t req;
1272 dl_hp_ppa_ack_t *dlp;
1277 memset((char *)&req, 0, sizeof(req));
1278 req.dl_primitive = DL_HP_PPA_REQ;
1280 memset((char *)buf, 0, sizeof(buf));
1281 if (send_request(fd, (char *)&req, sizeof(req), "hpppa", ebuf) < 0)
1284 ctl.maxlen = DL_HP_PPA_ACK_SIZE;
1286 ctl.buf = (char *)buf;
1290 * DLPI may return a big chunk of data for a DL_HP_PPA_REQ. The normal
1291 * recv_ack will fail because it set the maxlen to MAXDLBUF (8192)
1292 * which is NOT big enough for a DL_HP_PPA_REQ.
1294 * This causes libpcap applications to fail on a system with HP-APA
1297 * To figure out how big the returned data is, we first call getmsg
1298 * to get the small head and peek at the head to get the actual data
1299 * length, and then issue another getmsg to get the actual PPA data.
1301 /* get the head first */
1302 if (getmsg(fd, &ctl, (struct strbuf *)NULL, &flags) < 0) {
1303 snprintf(ebuf, PCAP_ERRBUF_SIZE,
1304 "get_dlpi_ppa: hpppa getmsg: %s", pcap_strerror(errno));
1308 dlp = (dl_hp_ppa_ack_t *)ctl.buf;
1309 if (dlp->dl_primitive != DL_HP_PPA_ACK) {
1310 snprintf(ebuf, PCAP_ERRBUF_SIZE,
1311 "get_dlpi_ppa: hpppa unexpected primitive ack 0x%x",
1312 (bpf_u_int32)dlp->dl_primitive);
1316 if (ctl.len < DL_HP_PPA_ACK_SIZE) {
1317 snprintf(ebuf, PCAP_ERRBUF_SIZE,
1318 "get_dlpi_ppa: hpppa ack too small (%d < %lu)",
1319 ctl.len, (unsigned long)DL_HP_PPA_ACK_SIZE);
1323 /* allocate buffer */
1324 if ((ppa_data_buf = (char *)malloc(dlp->dl_length)) == NULL) {
1325 snprintf(ebuf, PCAP_ERRBUF_SIZE,
1326 "get_dlpi_ppa: hpppa malloc: %s", pcap_strerror(errno));
1329 ctl.maxlen = dlp->dl_length;
1331 ctl.buf = (char *)ppa_data_buf;
1333 if (getmsg(fd, &ctl, (struct strbuf *)NULL, &flags) < 0) {
1334 snprintf(ebuf, PCAP_ERRBUF_SIZE,
1335 "get_dlpi_ppa: hpppa getmsg: %s", pcap_strerror(errno));
1339 if (ctl.len < dlp->dl_length) {
1340 snprintf(ebuf, PCAP_ERRBUF_SIZE,
1341 "get_dlpi_ppa: hpppa ack too small (%d < %d)",
1342 ctl.len, dlp->dl_length);
1347 ap = (dl_hp_ppa_ack_t *)buf;
1348 ipstart = (dl_hp_ppa_info_t *)ppa_data_buf;
1351 #ifdef HAVE_HP_PPA_INFO_T_DL_MODULE_ID_1
1353 * The "dl_hp_ppa_info_t" structure has a "dl_module_id_1"
1354 * member that should, in theory, contain the part of the
1355 * name for the device that comes before the unit number,
1356 * and should also have a "dl_module_id_2" member that may
1357 * contain an alternate name (e.g., I think Ethernet devices
1358 * have both "lan", for "lanN", and "snap", for "snapN", with
1359 * the former being for Ethernet packets and the latter being
1360 * for 802.3/802.2 packets).
1362 * Search for the device that has the specified name and
1365 for (i = 0; i < ap->dl_count; i++) {
1366 if ((strcmp((const char *)ip->dl_module_id_1, device) == 0 ||
1367 strcmp((const char *)ip->dl_module_id_2, device) == 0) &&
1368 ip->dl_instance_num == unit)
1371 ip = (dl_hp_ppa_info_t *)((u_char *)ipstart + ip->dl_next_offset);
1375 * We don't have that member, so the search is impossible; make it
1376 * look as if the search failed.
1381 if (i == ap->dl_count) {
1383 * Well, we didn't, or can't, find the device by name.
1385 * HP-UX 10.20, whilst it has "dl_module_id_1" and
1386 * "dl_module_id_2" fields in the "dl_hp_ppa_info_t",
1387 * doesn't seem to fill them in unless the system is
1388 * at a reasonably up-to-date patch level.
1390 * Older HP-UX 10.x systems might not have those fields
1393 * Therefore, we'll search for the entry with the major
1394 * device number of a device with the name "/dev/<dev><unit>",
1395 * if such a device exists, as the old code did.
1397 snprintf(dname, sizeof(dname), "/dev/%s%d", device, unit);
1398 if (stat(dname, &statbuf) < 0) {
1399 snprintf(ebuf, PCAP_ERRBUF_SIZE, "stat: %s: %s",
1400 dname, pcap_strerror(errno));
1403 majdev = major(statbuf.st_rdev);
1407 for (i = 0; i < ap->dl_count; i++) {
1408 if (ip->dl_mjr_num == majdev &&
1409 ip->dl_instance_num == unit)
1412 ip = (dl_hp_ppa_info_t *)((u_char *)ipstart + ip->dl_next_offset);
1415 if (i == ap->dl_count) {
1416 snprintf(ebuf, PCAP_ERRBUF_SIZE,
1417 "can't find /dev/dlpi PPA for %s%d", device, unit);
1420 if (ip->dl_hdw_state == HDW_DEAD) {
1421 snprintf(ebuf, PCAP_ERRBUF_SIZE,
1422 "%s%d: hardware state: DOWN\n", device, unit);
1434 * Under HP-UX 9, there is no good way to determine the ppa.
1435 * So punt and read it from /dev/kmem.
1437 static struct nlist nl[] = {
1443 static char path_vmunix[] = "/hp-ux";
1445 /* Determine ppa number that specifies ifname */
1447 get_dlpi_ppa(register int fd, register const char *ifname, register int unit,
1448 register char *ebuf)
1450 register const char *cp;
1454 char if_name[sizeof(ifnet.if_name) + 1];
1456 cp = strrchr(ifname, '/');
1459 if (nlist(path_vmunix, &nl) < 0) {
1460 snprintf(ebuf, PCAP_ERRBUF_SIZE, "nlist %s failed",
1464 if (nl[NL_IFNET].n_value == 0) {
1465 snprintf(ebuf, PCAP_ERRBUF_SIZE,
1466 "could't find %s kernel symbol",
1467 nl[NL_IFNET].n_name);
1470 kd = open("/dev/kmem", O_RDONLY);
1472 snprintf(ebuf, PCAP_ERRBUF_SIZE, "kmem open: %s",
1473 pcap_strerror(errno));
1476 if (dlpi_kread(kd, nl[NL_IFNET].n_value,
1477 &addr, sizeof(addr), ebuf) < 0) {
1481 for (; addr != NULL; addr = ifnet.if_next) {
1482 if (dlpi_kread(kd, (off_t)addr,
1483 &ifnet, sizeof(ifnet), ebuf) < 0 ||
1484 dlpi_kread(kd, (off_t)ifnet.if_name,
1485 if_name, sizeof(ifnet.if_name), ebuf) < 0) {
1489 if_name[sizeof(ifnet.if_name)] = '\0';
1490 if (strcmp(if_name, ifname) == 0 && ifnet.if_unit == unit)
1491 return (ifnet.if_index);
1494 snprintf(ebuf, PCAP_ERRBUF_SIZE, "Can't find %s", ifname);
1499 dlpi_kread(register int fd, register off_t addr,
1500 register void *buf, register u_int len, register char *ebuf)
1504 if (lseek(fd, addr, SEEK_SET) < 0) {
1505 snprintf(ebuf, PCAP_ERRBUF_SIZE, "lseek: %s",
1506 pcap_strerror(errno));
1509 cc = read(fd, buf, len);
1511 snprintf(ebuf, PCAP_ERRBUF_SIZE, "read: %s",
1512 pcap_strerror(errno));
1514 } else if (cc != len) {
1515 snprintf(ebuf, PCAP_ERRBUF_SIZE, "short read (%d != %d)", cc,