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Upgrade libpcap to version 1.0.0.

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This commit is contained in:
david
2009-10-27 19:33:50 +00:00
parent a56ff60c50
commit 9a1ec98da3
145 changed files with 22384 additions and 17731 deletions
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121
libpcap/pcap-snoop.c
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@@ -20,7 +20,7 @@
*/
#ifndef lint
static const char rcsid[] _U_ =
"@(#) $Header: /tcpdump/master/libpcap/pcap-snoop.c,v 1.54.2.1 2005/05/03 18:54:38 guy Exp $ (LBL)";
"@(#) $Header: /tcpdump/master/libpcap/pcap-snoop.c,v 1.55.2.3 2008-04-14 20:41:52 guy Exp $ (LBL)";
#endif
#ifdef HAVE_CONFIG_H
@@ -194,9 +194,8 @@ pcap_stats_snoop(pcap_t *p, struct pcap_stat *ps)
}
/* XXX can't disable promiscuous */
pcap_t *
pcap_open_live(const char *device, int snaplen, int promisc, int to_ms,
char *ebuf)
static int
pcap_activate_snoop(pcap_t *p)
{
int fd;
struct sockaddr_raw sr;
@@ -204,55 +203,50 @@ pcap_open_live(const char *device, int snaplen, int promisc, int to_ms,
u_int v;
int ll_hdrlen;
int snooplen;
pcap_t *p;
struct ifreq ifr;
p = (pcap_t *)malloc(sizeof(*p));
if (p == NULL) {
snprintf(ebuf, PCAP_ERRBUF_SIZE, "malloc: %s",
pcap_strerror(errno));
return (NULL);
}
memset(p, 0, sizeof(*p));
fd = socket(PF_RAW, SOCK_RAW, RAWPROTO_SNOOP);
if (fd < 0) {
snprintf(ebuf, PCAP_ERRBUF_SIZE, "snoop socket: %s",
snprintf(p->errbuf, PCAP_ERRBUF_SIZE, "snoop socket: %s",
pcap_strerror(errno));
goto bad;
}
p->fd = fd;
memset(&sr, 0, sizeof(sr));
sr.sr_family = AF_RAW;
(void)strncpy(sr.sr_ifname, device, sizeof(sr.sr_ifname));
(void)strncpy(sr.sr_ifname, p->opt.source, sizeof(sr.sr_ifname));
if (bind(fd, (struct sockaddr *)&sr, sizeof(sr))) {
snprintf(ebuf, PCAP_ERRBUF_SIZE, "snoop bind: %s",
snprintf(p->errbuf, PCAP_ERRBUF_SIZE, "snoop bind: %s",
pcap_strerror(errno));
goto bad;
}
memset(&sf, 0, sizeof(sf));
if (ioctl(fd, SIOCADDSNOOP, &sf) < 0) {
snprintf(ebuf, PCAP_ERRBUF_SIZE, "SIOCADDSNOOP: %s",
snprintf(p->errbuf, PCAP_ERRBUF_SIZE, "SIOCADDSNOOP: %s",
pcap_strerror(errno));
goto bad;
}
v = 64 * 1024;
if (handle->opt.buffer_size != 0)
v = handle->opt.buffer_size;
else
v = 64 * 1024; /* default to 64K buffer size */
(void)setsockopt(fd, SOL_SOCKET, SO_RCVBUF, (char *)&v, sizeof(v));
/*
* XXX hack - map device name to link layer type
*/
if (strncmp("et", device, 2) == 0 || /* Challenge 10 Mbit */
strncmp("ec", device, 2) == 0 || /* Indigo/Indy 10 Mbit,
O2 10/100 */
strncmp("ef", device, 2) == 0 || /* O200/2000 10/100 Mbit */
strncmp("eg", device, 2) == 0 || /* Octane/O2xxx/O3xxx Gigabit */
strncmp("gfe", device, 3) == 0 || /* GIO 100 Mbit */
strncmp("fxp", device, 3) == 0 || /* Challenge VME Enet */
strncmp("ep", device, 2) == 0 || /* Challenge 8x10 Mbit EPLEX */
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) {
if (strncmp("et", p->opt.source, 2) == 0 || /* Challenge 10 Mbit */
strncmp("ec", p->opt.source, 2) == 0 || /* Indigo/Indy 10 Mbit,
O2 10/100 */
strncmp("ef", p->opt.source, 2) == 0 || /* O200/2000 10/100 Mbit */
strncmp("eg", p->opt.source, 2) == 0 || /* Octane/O2xxx/O3xxx Gigabit */
strncmp("gfe", p->opt.source, 3) == 0 || /* GIO 100 Mbit */
strncmp("fxp", p->opt.source, 3) == 0 || /* Challenge VME Enet */
strncmp("ep", p->opt.source, 2) == 0 || /* Challenge 8x10 Mbit EPLEX */
strncmp("vfe", p->opt.source, 3) == 0 || /* Challenge VME 100Mbit */
strncmp("fa", p->opt.source, 2) == 0 ||
strncmp("qaa", p->opt.source, 3) == 0 ||
strncmp("cip", p->opt.source, 3) == 0 ||
strncmp("el", p->opt.source, 2) == 0) {
p->linktype = DLT_EN10MB;
p->offset = RAW_HDRPAD(sizeof(struct ether_header));
ll_hdrlen = sizeof(struct ether_header);
@@ -285,29 +279,38 @@ pcap_open_live(const char *device, int snaplen, int promisc, int to_ms,
p->dlt_list[1] = DLT_DOCSIS;
p->dlt_count = 2;
}
} else if (strncmp("ipg", device, 3) == 0 ||
strncmp("rns", device, 3) == 0 || /* O2/200/2000 FDDI */
strncmp("xpi", device, 3) == 0) {
} else if (strncmp("ipg", p->opt.source, 3) == 0 ||
strncmp("rns", p->opt.source, 3) == 0 || /* O2/200/2000 FDDI */
strncmp("xpi", p->opt.source, 3) == 0) {
p->linktype = DLT_FDDI;
p->offset = 3; /* XXX yeah? */
ll_hdrlen = 13;
} else if (strncmp("ppp", device, 3) == 0) {
} else if (strncmp("ppp", p->opt.source, 3) == 0) {
p->linktype = DLT_RAW;
ll_hdrlen = 0; /* DLT_RAW meaning "no PPP header, just the IP packet"? */
} else if (strncmp("qfa", device, 3) == 0) {
} else if (strncmp("qfa", p->opt.source, 3) == 0) {
p->linktype = DLT_IP_OVER_FC;
ll_hdrlen = 24;
} else if (strncmp("pl", device, 2) == 0) {
} else if (strncmp("pl", p->opt.source, 2) == 0) {
p->linktype = DLT_RAW;
ll_hdrlen = 0; /* Cray UNICOS/mp pseudo link */
} else if (strncmp("lo", device, 2) == 0) {
} else if (strncmp("lo", p->opt.source, 2) == 0) {
p->linktype = DLT_NULL;
ll_hdrlen = 4;
} else {
snprintf(ebuf, PCAP_ERRBUF_SIZE,
snprintf(p->errbuf, PCAP_ERRBUF_SIZE,
"snoop: unknown physical layer type");
goto bad;
}
if (p->opt.rfmon) {
/*
* No monitor mode on Irix (no Wi-Fi devices on
* hardware supported by Irix).
*/
return (PCAP_ERROR_RFMON_NOTSUP);
}
#ifdef SIOCGIFMTU
/*
* XXX - IRIX appears to give you an error if you try to set the
@@ -315,9 +318,9 @@ pcap_open_live(const char *device, int snaplen, int promisc, int to_ms,
* the MTU first and, if that succeeds, trim the snap length
* to be no greater than the MTU.
*/
(void)strncpy(ifr.ifr_name, device, sizeof(ifr.ifr_name));
(void)strncpy(ifr.ifr_name, p->opt.source, sizeof(ifr.ifr_name));
if (ioctl(fd, SIOCGIFMTU, (char *)&ifr) < 0) {
snprintf(ebuf, PCAP_ERRBUF_SIZE, "SIOCGIFMTU: %s",
snprintf(p->errbuf, PCAP_ERRBUF_SIZE, "SIOCGIFMTU: %s",
pcap_strerror(errno));
goto bad;
}
@@ -338,8 +341,8 @@ pcap_open_live(const char *device, int snaplen, int promisc, int to_ms,
#ifndef ifr_mtu
#define ifr_mtu ifr_metric
#endif
if (snaplen > ifr.ifr_mtu + ll_hdrlen)
snaplen = ifr.ifr_mtu + ll_hdrlen;
if (p->snapshot > ifr.ifr_mtu + ll_hdrlen)
p->snapshot = ifr.ifr_mtu + ll_hdrlen;
#endif
/*
@@ -347,18 +350,17 @@ pcap_open_live(const char *device, int snaplen, int promisc, int to_ms,
* payload bytes to capture - it doesn't count link-layer
* header bytes.
*/
snooplen = snaplen - ll_hdrlen;
snooplen = p->snapshot - ll_hdrlen;
if (snooplen < 0)
snooplen = 0;
if (ioctl(fd, SIOCSNOOPLEN, &snooplen) < 0) {
snprintf(ebuf, PCAP_ERRBUF_SIZE, "SIOCSNOOPLEN: %s",
snprintf(p->errbuf, PCAP_ERRBUF_SIZE, "SIOCSNOOPLEN: %s",
pcap_strerror(errno));
goto bad;
}
p->snapshot = snaplen;
v = 1;
if (ioctl(fd, SIOCSNOOPING, &v) < 0) {
snprintf(ebuf, PCAP_ERRBUF_SIZE, "SIOCSNOOPING: %s",
snprintf(p->errbuf, PCAP_ERRBUF_SIZE, "SIOCSNOOPING: %s",
pcap_strerror(errno));
goto bad;
}
@@ -366,7 +368,7 @@ pcap_open_live(const char *device, int snaplen, int promisc, int to_ms,
p->bufsize = 4096; /* XXX */
p->buffer = (u_char *)malloc(p->bufsize);
if (p->buffer == NULL) {
snprintf(ebuf, PCAP_ERRBUF_SIZE, "malloc: %s",
snprintf(p->errbuf, PCAP_ERRBUF_SIZE, "malloc: %s",
pcap_strerror(errno));
goto bad;
}
@@ -384,18 +386,23 @@ pcap_open_live(const char *device, int snaplen, int promisc, int to_ms,
p->getnonblock_op = pcap_getnonblock_fd;
p->setnonblock_op = pcap_setnonblock_fd;
p->stats_op = pcap_stats_snoop;
p->close_op = pcap_close_common;
return (p);
return (0);
bad:
(void)close(fd);
/*
* Get rid of any link-layer type list we allocated.
*/
if (p->dlt_list != NULL)
free(p->dlt_list);
free(p);
return (NULL);
return (PCAP_ERROR);
}
pcap_t *
pcap_create(const char *device, char *ebuf)
{
pcap_t *p;
p = pcap_create_common(device, ebuf);
if (p == NULL)
return (NULL);
p->activate_op = pcap_activate_snoop;
return (p);
}
int