diff options
Diffstat (limited to 'contrib/libpcap/pcap-snoop.c')
| -rw-r--r-- | contrib/libpcap/pcap-snoop.c | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/contrib/libpcap/pcap-snoop.c b/contrib/libpcap/pcap-snoop.c index 65ad273..5d58ba3 100644 --- a/contrib/libpcap/pcap-snoop.c +++ b/contrib/libpcap/pcap-snoop.c @@ -20,7 +20,7 @@ */ #ifndef lint static const char rcsid[] = - "@(#) $Header: /tcpdump/master/libpcap/pcap-snoop.c,v 1.30 2000/10/28 00:01:30 guy Exp $ (LBL)"; + "@(#) $Header: /tcpdump/master/libpcap/pcap-snoop.c,v 1.33 2001/12/10 07:14:21 guy Exp $ (LBL)"; #endif #ifdef HAVE_CONFIG_H @@ -115,10 +115,28 @@ pcap_stats(pcap_t *p, struct pcap_stat *ps) return (-1); } + /* + * "ifdrops" are those dropped by the network interface + * due to resource shortages or hardware errors. + * + * "sbdrops" are those dropped due to socket buffer limits. + * + * As filter is done in userland, "sbdrops" counts packets + * regardless of whether they would've passed the filter. + * + * XXX - does this count *all* Snoop or Drain sockets, + * rather than just this socket? If not, why does it have + * both Snoop and Drain statistics? + */ p->md.stat.ps_drop = rs->rs_snoop.ss_ifdrops + rs->rs_snoop.ss_sbdrops + rs->rs_drain.ds_ifdrops + rs->rs_drain.ds_sbdrops; + /* + * "ps_recv" counts only packets that passed the filter. + * As filtering is done in userland, this does not include + * packets dropped because we ran out of buffer space. + */ *ps = p->md.stat; return (0); } @@ -179,6 +197,7 @@ pcap_open_live(char *device, int snaplen, int promisc, int to_ms, char *ebuf) strncmp("vfe", device, 3) == 0 || /* Challenge VME 100Mbit */ strncmp("fa", device, 2) == 0 || strncmp("qaa", device, 3) == 0 || + strncmp("cip", device, 3) == 0 || strncmp("el", device, 2) == 0) { p->linktype = DLT_EN10MB; p->offset = RAW_HDRPAD(sizeof(struct ether_header)); |
