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-rw-r--r--pcap-dlpi.c848
1 files changed, 848 insertions, 0 deletions
diff --git a/pcap-dlpi.c b/pcap-dlpi.c
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--- /dev/null
+++ b/pcap-dlpi.c
@@ -0,0 +1,848 @@
+/*
+ * Copyright (c) 1993, 1994, 1995, 1996, 1997
+ * The Regents of the University of California. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that: (1) source code distributions
+ * retain the above copyright notice and this paragraph in its entirety, (2)
+ * distributions including binary code include the above copyright notice and
+ * this paragraph in its entirety in the documentation or other materials
+ * provided with the distribution, and (3) all advertising materials mentioning
+ * features or use of this software display the following acknowledgement:
+ * ``This product includes software developed by the University of California,
+ * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
+ * the University nor the names of its contributors may be used to endorse
+ * or promote products derived from this software without specific prior
+ * written permission.
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * This code contributed by Atanu Ghosh (atanu@cs.ucl.ac.uk),
+ * University College London.
+ */
+
+/*
+ * Packet capture routine for dlpi under SunOS 5
+ *
+ * Notes:
+ *
+ * - Apparently the DLIOCRAW ioctl() is specific to SunOS.
+ *
+ * - There is a bug in bufmod(7) such that setting the snapshot
+ * length results in data being left of the front of the packet.
+ *
+ * - It might be desirable to use pfmod(7) to filter packets in the
+ * kernel.
+ */
+
+#ifndef lint
+static const char rcsid[] =
+ "@(#) $Header: /tcpdump/master/libpcap/pcap-dlpi.c,v 1.52 1999-10-07 23:46:40 mcr Exp $ (LBL)";
+#endif
+
+#include <sys/types.h>
+#include <sys/time.h>
+#ifdef HAVE_SYS_BUFMOD_H
+#include <sys/bufmod.h>
+#endif
+#include <sys/dlpi.h>
+#ifdef HAVE_SYS_DLPI_EXT_H
+#include <sys/dlpi_ext.h>
+#endif
+#ifdef HAVE_HPUX9
+#include <sys/socket.h>
+#endif
+#ifdef DL_HP_PPA_ACK_OBS
+#include <sys/stat.h>
+#endif
+#include <sys/stream.h>
+#if defined(HAVE_SOLARIS) && defined(HAVE_SYS_BUFMOD_H)
+#include <sys/systeminfo.h>
+#endif
+
+#ifdef HAVE_HPUX9
+#include <net/if.h>
+#endif
+
+#include <ctype.h>
+#ifdef HAVE_HPUX9
+#include <nlist.h>
+#endif
+#include <errno.h>
+#include <fcntl.h>
+#include <memory.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stropts.h>
+#include <unistd.h>
+
+#include "pcap-int.h"
+
+#include "gnuc.h"
+#ifdef HAVE_OS_PROTO_H
+#include "os-proto.h"
+#endif
+
+#ifndef PCAP_DEV_PREFIX
+#define PCAP_DEV_PREFIX "/dev"
+#endif
+
+#define MAXDLBUF 8192
+
+/* Forwards */
+static int dlattachreq(int, bpf_u_int32, char *);
+static int dlbindack(int, char *, char *);
+static int dlbindreq(int, bpf_u_int32, char *);
+static int dlinfoack(int, char *, char *);
+static int dlinforeq(int, char *);
+static int dlokack(int, const char *, char *, char *);
+static int recv_ack(int, int, const char *, char *, char *);
+static int dlpromisconreq(int, bpf_u_int32, char *);
+#if defined(HAVE_SOLARIS) && defined(HAVE_SYS_BUFMOD_H)
+static char *get_release(bpf_u_int32 *, bpf_u_int32 *, bpf_u_int32 *);
+#endif
+static int send_request(int, char *, int, char *, char *);
+#ifdef HAVE_SYS_BUFMOD_H
+static int strioctl(int, int, int, char *);
+#endif
+#ifdef HAVE_HPUX9
+static int dlpi_kread(int, off_t, void *, u_int, char *);
+#endif
+#ifdef HAVE_DEV_DLPI
+static int get_dlpi_ppa(int, const char *, int, char *);
+#endif
+
+int
+pcap_stats(pcap_t *p, struct pcap_stat *ps)
+{
+
+ *ps = p->md.stat;
+ return (0);
+}
+
+/* XXX Needed by HP-UX (at least) */
+static bpf_u_int32 ctlbuf[MAXDLBUF];
+static struct strbuf ctl = {
+ MAXDLBUF,
+ 0,
+ (char *)ctlbuf
+};
+
+int
+pcap_read(pcap_t *p, int cnt, pcap_handler callback, u_char *user)
+{
+ register int cc, n, caplen, origlen;
+ register u_char *bp, *ep, *pk;
+ register struct bpf_insn *fcode;
+#ifdef HAVE_SYS_BUFMOD_H
+ register struct sb_hdr *sbp;
+#ifdef LBL_ALIGN
+ struct sb_hdr sbhdr;
+#endif
+#endif
+ int flags;
+ struct strbuf data;
+ struct pcap_pkthdr pkthdr;
+
+ flags = 0;
+ cc = p->cc;
+ if (cc == 0) {
+ data.buf = (char *)p->buffer + p->offset;
+ data.maxlen = MAXDLBUF;
+ data.len = 0;
+ do {
+ if (getmsg(p->fd, &ctl, &data, &flags) < 0) {
+ /* Don't choke when we get ptraced */
+ if (errno == EINTR) {
+ cc = 0;
+ continue;
+ }
+ strcpy(p->errbuf, pcap_strerror(errno));
+ return (-1);
+ }
+ cc = data.len;
+ } while (cc == 0);
+ bp = p->buffer + p->offset;
+ } else
+ bp = p->bp;
+
+ /* Loop through packets */
+ fcode = p->fcode.bf_insns;
+ ep = bp + cc;
+ n = 0;
+#ifdef HAVE_SYS_BUFMOD_H
+ while (bp < ep) {
+#ifdef LBL_ALIGN
+ if ((long)bp & 3) {
+ sbp = &sbhdr;
+ memcpy(sbp, bp, sizeof(*sbp));
+ } else
+#endif
+ sbp = (struct sb_hdr *)bp;
+ p->md.stat.ps_drop += sbp->sbh_drops;
+ pk = bp + sizeof(*sbp);
+ bp += sbp->sbh_totlen;
+ origlen = sbp->sbh_origlen;
+ caplen = sbp->sbh_msglen;
+#else
+ origlen = cc;
+ caplen = min(p->snapshot, cc);
+ pk = bp;
+ bp += caplen;
+#endif
+ ++p->md.stat.ps_recv;
+ if (bpf_filter(fcode, pk, origlen, caplen)) {
+#ifdef HAVE_SYS_BUFMOD_H
+ pkthdr.ts = sbp->sbh_timestamp;
+#else
+ (void)gettimeofday(&pkthdr.ts, NULL);
+#endif
+ pkthdr.len = origlen;
+ pkthdr.caplen = caplen;
+ /* Insure caplen does not exceed snapshot */
+ if (pkthdr.caplen > p->snapshot)
+ pkthdr.caplen = p->snapshot;
+ (*callback)(user, &pkthdr, pk);
+ if (++n >= cnt && cnt >= 0) {
+ p->cc = ep - bp;
+ p->bp = bp;
+ return (n);
+ }
+ }
+#ifdef HAVE_SYS_BUFMOD_H
+ }
+#endif
+ p->cc = 0;
+ return (n);
+}
+
+pcap_t *
+pcap_open_live(char *device, int snaplen, int promisc, int to_ms, char *ebuf)
+{
+ register char *cp;
+ char *eos;
+ register pcap_t *p;
+ register int ppa;
+ register dl_info_ack_t *infop;
+#ifdef HAVE_SYS_BUFMOD_H
+ bpf_u_int32 ss, flag;
+#ifdef HAVE_SOLARIS
+ register char *release;
+ bpf_u_int32 osmajor, osminor, osmicro;
+#endif
+#endif
+ bpf_u_int32 buf[MAXDLBUF];
+ char dname[100];
+#ifndef HAVE_DEV_DLPI
+ char dname2[100];
+#endif
+
+ p = (pcap_t *)malloc(sizeof(*p));
+ if (p == NULL) {
+ strcpy(ebuf, pcap_strerror(errno));
+ return (NULL);
+ }
+ memset(p, 0, sizeof(*p));
+
+ /*
+ ** Determine device and ppa
+ */
+ cp = strpbrk(device, "0123456789");
+ if (cp == NULL) {
+ sprintf(ebuf, "%s missing unit number", device);
+ goto bad;
+ }
+ ppa = strtol(cp, &eos, 10);
+ if (*eos != '\0') {
+ sprintf(ebuf, "%s bad unit number", device);
+ goto bad;
+ }
+
+ if (*device == '/')
+ strcpy(dname, device);
+ else
+ sprintf(dname, "%s/%s", PCAP_DEV_PREFIX, device);
+#ifdef HAVE_DEV_DLPI
+ /* Map network device to /dev/dlpi unit */
+ cp = "/dev/dlpi";
+ if ((p->fd = open(cp, O_RDWR)) < 0) {
+ sprintf(ebuf, "%s: %s", cp, pcap_strerror(errno));
+ goto bad;
+ }
+ /* Map network interface to /dev/dlpi unit */
+ ppa = get_dlpi_ppa(p->fd, dname, ppa, ebuf);
+ if (ppa < 0)
+ goto bad;
+#else
+ /* Try device without unit number */
+ strcpy(dname2, dname);
+ cp = strchr(dname, *cp);
+ *cp = '\0';
+ if ((p->fd = open(dname, O_RDWR)) < 0) {
+ if (errno != ENOENT) {
+ sprintf(ebuf, "%s: %s", dname, pcap_strerror(errno));
+ goto bad;
+ }
+
+ /* Try again with unit number */
+ if ((p->fd = open(dname2, O_RDWR)) < 0) {
+ sprintf(ebuf, "%s: %s", dname2, pcap_strerror(errno));
+ goto bad;
+ }
+ /* XXX Assume unit zero */
+ ppa = 0;
+ }
+#endif
+
+ p->snapshot = snaplen;
+
+ /*
+ ** Attach if "style 2" provider
+ */
+ if (dlinforeq(p->fd, ebuf) < 0 ||
+ dlinfoack(p->fd, (char *)buf, ebuf) < 0)
+ goto bad;
+ infop = &((union DL_primitives *)buf)->info_ack;
+ if (infop->dl_provider_style == DL_STYLE2 &&
+ (dlattachreq(p->fd, ppa, ebuf) < 0 ||
+ dlokack(p->fd, "attach", (char *)buf, ebuf) < 0))
+ goto bad;
+ /*
+ ** Bind (defer if using HP-UX 9 or HP-UX 10.20, totally skip if
+ ** using SINIX)
+ */
+#if !defined(HAVE_HPUX9) && !defined(HAVE_HPUX10_20) && !defined(sinix)
+ if (dlbindreq(p->fd, 0, ebuf) < 0 ||
+ dlbindack(p->fd, (char *)buf, ebuf) < 0)
+ goto bad;
+#endif
+
+ if (promisc) {
+ /*
+ ** Enable promiscuous
+ */
+ if (dlpromisconreq(p->fd, DL_PROMISC_PHYS, ebuf) < 0 ||
+ dlokack(p->fd, "promisc_phys", (char *)buf, ebuf) < 0)
+ goto bad;
+
+ /*
+ ** Try to enable multicast (you would have thought
+ ** promiscuous would be sufficient). (Skip if using
+ ** HP-UX or SINIX)
+ */
+#if !defined(__hpux) && !defined(sinix)
+ if (dlpromisconreq(p->fd, DL_PROMISC_MULTI, ebuf) < 0 ||
+ dlokack(p->fd, "promisc_multi", (char *)buf, ebuf) < 0)
+ fprintf(stderr,
+ "WARNING: DL_PROMISC_MULTI failed (%s)\n", ebuf);
+#endif
+ }
+ /*
+ ** Try to enable sap (when not in promiscuous mode when using
+ ** using HP-UX and never under SINIX)
+ */
+#ifndef sinix
+ if (
+#ifdef __hpux
+ !promisc &&
+#endif
+ (dlpromisconreq(p->fd, DL_PROMISC_SAP, ebuf) < 0 ||
+ dlokack(p->fd, "promisc_sap", (char *)buf, ebuf) < 0)) {
+ /* Not fatal if promisc since the DL_PROMISC_PHYS worked */
+ if (promisc)
+ fprintf(stderr,
+ "WARNING: DL_PROMISC_SAP failed (%s)\n", ebuf);
+ else
+ goto bad;
+ }
+#endif
+
+ /*
+ ** HP-UX 9 and HP-UX 10.20 must bind after setting promiscuous
+ ** options)
+ */
+#if defined(HAVE_HPUX9) || defined(HAVE_HPUX10_20)
+ if (dlbindreq(p->fd, 0, ebuf) < 0 ||
+ dlbindack(p->fd, (char *)buf, ebuf) < 0)
+ goto bad;
+#endif
+
+ /*
+ ** Determine link type
+ */
+ if (dlinforeq(p->fd, ebuf) < 0 ||
+ dlinfoack(p->fd, (char *)buf, ebuf) < 0)
+ goto bad;
+
+ infop = &((union DL_primitives *)buf)->info_ack;
+ switch (infop->dl_mac_type) {
+
+ case DL_CSMACD:
+ case DL_ETHER:
+ p->linktype = DLT_EN10MB;
+ p->offset = 2;
+ break;
+
+ case DL_FDDI:
+ p->linktype = DLT_FDDI;
+ p->offset = 3;
+ break;
+
+ default:
+ sprintf(ebuf, "unknown mac type 0x%lu", infop->dl_mac_type);
+ goto bad;
+ }
+
+#ifdef DLIOCRAW
+ /*
+ ** This is a non standard SunOS hack to get the ethernet header.
+ */
+ if (strioctl(p->fd, DLIOCRAW, 0, NULL) < 0) {
+ sprintf(ebuf, "DLIOCRAW: %s", pcap_strerror(errno));
+ goto bad;
+ }
+#endif
+
+#ifdef HAVE_SYS_BUFMOD_H
+ /*
+ ** Another non standard call to get the data nicely buffered
+ */
+ if (ioctl(p->fd, I_PUSH, "bufmod") != 0) {
+ sprintf(ebuf, "I_PUSH bufmod: %s", pcap_strerror(errno));
+ goto bad;
+ }
+
+ /*
+ ** Now that the bufmod is pushed lets configure it.
+ **
+ ** There is a bug in bufmod(7). When dealing with messages of
+ ** less than snaplen size it strips data from the beginning not
+ ** the end.
+ **
+ ** This bug is supposed to be fixed in 5.3.2. Also, there is a
+ ** patch available. Ask for bugid 1149065.
+ */
+ ss = snaplen;
+#ifdef HAVE_SOLARIS
+ release = get_release(&osmajor, &osminor, &osmicro);
+ if (osmajor == 5 && (osminor <= 2 || (osminor == 3 && osmicro < 2)) &&
+ getenv("BUFMOD_FIXED") == NULL) {
+ fprintf(stderr,
+ "WARNING: bufmod is broken in SunOS %s; ignoring snaplen.\n",
+ release);
+ ss = 0;
+ }
+#endif
+ if (ss > 0 &&
+ strioctl(p->fd, SBIOCSSNAP, sizeof(ss), (char *)&ss) != 0) {
+ sprintf(ebuf, "SBIOCSSNAP: %s", pcap_strerror(errno));
+ goto bad;
+ }
+
+ /*
+ ** Set up the bufmod flags
+ */
+ if (strioctl(p->fd, SBIOCGFLAGS, sizeof(flag), (char *)&flag) < 0) {
+ sprintf(ebuf, "SBIOCGFLAGS: %s", pcap_strerror(errno));
+ goto bad;
+ }
+ flag |= SB_NO_DROPS;
+ if (strioctl(p->fd, SBIOCSFLAGS, sizeof(flag), (char *)&flag) != 0) {
+ sprintf(ebuf, "SBIOCSFLAGS: %s", pcap_strerror(errno));
+ goto bad;
+ }
+ /*
+ ** Set up the bufmod timeout
+ */
+ if (to_ms != 0) {
+ struct timeval to;
+
+ to.tv_sec = to_ms / 1000;
+ to.tv_usec = (to_ms * 1000) % 1000000;
+ if (strioctl(p->fd, SBIOCSTIME, sizeof(to), (char *)&to) != 0) {
+ sprintf(ebuf, "SBIOCSTIME: %s", pcap_strerror(errno));
+ goto bad;
+ }
+ }
+#endif
+
+ /*
+ ** As the last operation flush the read side.
+ */
+ if (ioctl(p->fd, I_FLUSH, FLUSHR) != 0) {
+ sprintf(ebuf, "FLUSHR: %s", pcap_strerror(errno));
+ goto bad;
+ }
+ /* Allocate data buffer */
+ p->bufsize = MAXDLBUF * sizeof(bpf_u_int32);
+ p->buffer = (u_char *)malloc(p->bufsize + p->offset);
+
+ return (p);
+bad:
+ free(p);
+ return (NULL);
+}
+
+int
+pcap_setfilter(pcap_t *p, struct bpf_program *fp)
+{
+
+ p->fcode = *fp;
+ return (0);
+}
+
+static int
+send_request(int fd, char *ptr, int len, char *what, char *ebuf)
+{
+ struct strbuf ctl;
+ int flags;
+
+ ctl.maxlen = 0;
+ ctl.len = len;
+ ctl.buf = ptr;
+
+ flags = 0;
+ if (putmsg(fd, &ctl, (struct strbuf *) NULL, flags) < 0) {
+ sprintf(ebuf, "send_request: putmsg \"%s\": %s",
+ what, pcap_strerror(errno));
+ return (-1);
+ }
+ return (0);
+}
+
+static int
+recv_ack(int fd, int size, const char *what, char *bufp, char *ebuf)
+{
+ union DL_primitives *dlp;
+ struct strbuf ctl;
+ int flags;
+
+ ctl.maxlen = MAXDLBUF;
+ ctl.len = 0;
+ ctl.buf = bufp;
+
+ flags = 0;
+ if (getmsg(fd, &ctl, (struct strbuf*)NULL, &flags) < 0) {
+ sprintf(ebuf, "recv_ack: %s getmsg: %s",
+ what, pcap_strerror(errno));
+ return (-1);
+ }
+
+ dlp = (union DL_primitives *) ctl.buf;
+ switch (dlp->dl_primitive) {
+
+ case DL_INFO_ACK:
+ case DL_BIND_ACK:
+ case DL_OK_ACK:
+#ifdef DL_HP_PPA_ACK
+ case DL_HP_PPA_ACK:
+#endif
+
+ /* These are OK */
+ break;
+
+ case DL_ERROR_ACK:
+ switch (dlp->error_ack.dl_errno) {
+
+ case DL_BADPPA:
+ sprintf(ebuf, "recv_ack: %s bad ppa (device unit)",
+ what);
+ break;
+
+
+ case DL_SYSERR:
+ sprintf(ebuf, "recv_ack: %s: %s",
+ what, pcap_strerror(dlp->error_ack.dl_unix_errno));
+ break;
+
+ case DL_UNSUPPORTED:
+ sprintf(ebuf,
+ "recv_ack: %s: Service not supplied by provider",
+ what);
+ break;
+
+ default:
+ sprintf(ebuf, "recv_ack: %s error 0x%x",
+ what, (bpf_u_int32)dlp->error_ack.dl_errno);
+ break;
+ }
+ return (-1);
+
+ default:
+ sprintf(ebuf, "recv_ack: %s unexpected primitive ack 0x%x ",
+ what, (bpf_u_int32)dlp->dl_primitive);
+ return (-1);
+ }
+
+ if (ctl.len < size) {
+ sprintf(ebuf, "recv_ack: %s ack too small (%d < %d)",
+ what, ctl.len, size);
+ return (-1);
+ }
+ return (ctl.len);
+}
+
+static int
+dlattachreq(int fd, bpf_u_int32 ppa, char *ebuf)
+{
+ dl_attach_req_t req;
+
+ req.dl_primitive = DL_ATTACH_REQ;
+ req.dl_ppa = ppa;
+
+ return (send_request(fd, (char *)&req, sizeof(req), "attach", ebuf));
+}
+
+static int
+dlbindreq(int fd, bpf_u_int32 sap, char *ebuf)
+{
+
+ dl_bind_req_t req;
+
+ memset((char *)&req, 0, sizeof(req));
+ req.dl_primitive = DL_BIND_REQ;
+#ifdef DL_HP_RAWDLS
+ req.dl_max_conind = 1; /* XXX magic number */
+ /* 22 is INSAP as per the HP-UX DLPI Programmer's Guide */
+ req.dl_sap = 22;
+ req.dl_service_mode = DL_HP_RAWDLS;
+#else
+ req.dl_sap = sap;
+#ifdef DL_CLDLS
+ req.dl_service_mode = DL_CLDLS;
+#endif
+#endif
+
+ return (send_request(fd, (char *)&req, sizeof(req), "bind", ebuf));
+}
+
+static int
+dlbindack(int fd, char *bufp, char *ebuf)
+{
+
+ return (recv_ack(fd, DL_BIND_ACK_SIZE, "bind", bufp, ebuf));
+}
+
+static int
+dlpromisconreq(int fd, bpf_u_int32 level, char *ebuf)
+{
+ dl_promiscon_req_t req;
+
+ req.dl_primitive = DL_PROMISCON_REQ;
+ req.dl_level = level;
+
+ return (send_request(fd, (char *)&req, sizeof(req), "promiscon", ebuf));
+}
+
+static int
+dlokack(int fd, const char *what, char *bufp, char *ebuf)
+{
+
+ return (recv_ack(fd, DL_OK_ACK_SIZE, what, bufp, ebuf));
+}
+
+
+static int
+dlinforeq(int fd, char *ebuf)
+{
+ dl_info_req_t req;
+
+ req.dl_primitive = DL_INFO_REQ;
+
+ return (send_request(fd, (char *)&req, sizeof(req), "info", ebuf));
+}
+
+static int
+dlinfoack(int fd, char *bufp, char *ebuf)
+{
+
+ return (recv_ack(fd, DL_INFO_ACK_SIZE, "info", bufp, ebuf));
+}
+
+#ifdef HAVE_SYS_BUFMOD_H
+static int
+strioctl(int fd, int cmd, int len, char *dp)
+{
+ struct strioctl str;
+ int rc;
+
+ str.ic_cmd = cmd;
+ str.ic_timout = -1;
+ str.ic_len = len;
+ str.ic_dp = dp;
+ rc = ioctl(fd, I_STR, &str);
+
+ if (rc < 0)
+ return (rc);
+ else
+ return (str.ic_len);
+}
+#endif
+
+#if defined(HAVE_SOLARIS) && defined(HAVE_SYS_BUFMOD_H)
+static char *
+get_release(bpf_u_int32 *majorp, bpf_u_int32 *minorp, bpf_u_int32 *microp)
+{
+ char *cp;
+ static char buf[32];
+
+ *majorp = 0;
+ *minorp = 0;
+ *microp = 0;
+ if (sysinfo(SI_RELEASE, buf, sizeof(buf)) < 0)
+ return ("?");
+ cp = buf;
+ if (!isdigit(*cp))
+ return (buf);
+ *majorp = strtol(cp, &cp, 10);
+ if (*cp++ != '.')
+ return (buf);
+ *minorp = strtol(cp, &cp, 10);
+ if (*cp++ != '.')
+ return (buf);
+ *microp = strtol(cp, &cp, 10);
+ return (buf);
+}
+#endif
+
+#ifdef DL_HP_PPA_ACK_OBS
+/*
+ * Under HP-UX 10, we can ask for the ppa
+ */
+
+
+/* Determine ppa number that specifies ifname */
+static int
+get_dlpi_ppa(register int fd, register const char *device, register int unit,
+ register char *ebuf)
+{
+ register dl_hp_ppa_ack_t *ap;
+ register dl_hp_ppa_info_t *ip;
+ register int i;
+ register u_long majdev;
+ dl_hp_ppa_req_t req;
+ struct stat statbuf;
+ bpf_u_int32 buf[MAXDLBUF];
+
+ if (stat(device, &statbuf) < 0) {
+ sprintf(ebuf, "stat: %s: %s", device, pcap_strerror(errno));
+ return (-1);
+ }
+ majdev = major(statbuf.st_rdev);
+
+ memset((char *)&req, 0, sizeof(req));
+ req.dl_primitive = DL_HP_PPA_REQ;
+
+ memset((char *)buf, 0, sizeof(buf));
+ if (send_request(fd, (char *)&req, sizeof(req), "hpppa", ebuf) < 0 ||
+ recv_ack(fd, DL_HP_PPA_ACK_SIZE, "hpppa", (char *)buf, ebuf) < 0)
+ return (-1);
+
+ ap = (dl_hp_ppa_ack_t *)buf;
+ ip = (dl_hp_ppa_info_t *)((u_char *)ap + ap->dl_offset);
+
+ for(i = 0; i < ap->dl_count; i++) {
+ if (ip->dl_mjr_num == majdev && ip->dl_instance_num == unit)
+ break;
+
+ ip = (dl_hp_ppa_info_t *)((u_char *)ip + ip->dl_next_offset);
+ }
+ if (i == ap->dl_count) {
+ sprintf(ebuf, "can't find PPA for %s", device);
+ return (-1);
+ }
+ if (ip->dl_hdw_state == HDW_DEAD) {
+ sprintf(ebuf, "%s: hardware state: DOWN\n", device);
+ return (-1);
+ }
+ return ((int)ip->dl_ppa);
+}
+#endif
+
+#ifdef HAVE_HPUX9
+/*
+ * Under HP-UX 9, there is no good way to determine the ppa.
+ * So punt and read it from /dev/kmem.
+ */
+static struct nlist nl[] = {
+#define NL_IFNET 0
+ { "ifnet" },
+ { "" }
+};
+
+static char path_vmunix[] = "/hp-ux";
+
+/* Determine ppa number that specifies ifname */
+static int
+get_dlpi_ppa(register int fd, register const char *ifname, register int unit,
+ register char *ebuf)
+{
+ register const char *cp;
+ register int kd;
+ void *addr;
+ struct ifnet ifnet;
+ char if_name[sizeof(ifnet.if_name)], tifname[32];
+
+ cp = strrchr(ifname, '/');
+ if (cp != NULL)
+ ifname = cp + 1;
+ if (nlist(path_vmunix, &nl) < 0) {
+ sprintf(ebuf, "nlist %s failed", path_vmunix);
+ return (-1);
+ }
+ if (nl[NL_IFNET].n_value == 0) {
+ sprintf(ebuf, "could't find %s kernel symbol",
+ nl[NL_IFNET].n_name);
+ return (-1);
+ }
+ kd = open("/dev/kmem", O_RDONLY);
+ if (kd < 0) {
+ sprintf(ebuf, "kmem open: %s", pcap_strerror(errno));
+ return (-1);
+ }
+ if (dlpi_kread(kd, nl[NL_IFNET].n_value,
+ &addr, sizeof(addr), ebuf) < 0) {
+ close(kd);
+ return (-1);
+ }
+ for (; addr != NULL; addr = ifnet.if_next) {
+ if (dlpi_kread(kd, (off_t)addr,
+ &ifnet, sizeof(ifnet), ebuf) < 0 ||
+ dlpi_kread(kd, (off_t)ifnet.if_name,
+ if_name, sizeof(if_name), ebuf) < 0) {
+ (void)close(kd);
+ return (-1);
+ }
+ sprintf(tifname, "%.*s%d",
+ (int)sizeof(if_name), if_name, ifnet.if_unit);
+ if (strcmp(tifname, ifname) == 0)
+ return (ifnet.if_index);
+ }
+
+ sprintf(ebuf, "Can't find %s", ifname);
+ return (-1);
+}
+
+static int
+dlpi_kread(register int fd, register off_t addr,
+ register void *buf, register u_int len, register char *ebuf)
+{
+ register int cc;
+
+ if (lseek(fd, addr, SEEK_SET) < 0) {
+ sprintf(ebuf, "lseek: %s", pcap_strerror(errno));
+ return (-1);
+ }
+ cc = read(fd, buf, len);
+ if (cc < 0) {
+ sprintf(ebuf, "read: %s", pcap_strerror(errno));
+ return (-1);
+ } else if (cc != len) {
+ sprintf(ebuf, "short read (%d != %d)", cc, len);
+ return (-1);
+ }
+ return (cc);
+}
+#endif
generated by cgit v1.2.3 (git 2.39.1) at 2025-05-10 10:49:39 +0000