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Add paranoid debug output in open_capture_device(). 

svn path=/trunk/; revision=37847
This commit is contained in:
Michael Tüxen 2011-06-30 21:02:11 +00:00
parent 031a28f65e
commit be3a756582
1 changed files with 26 additions and 0 deletions
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26
dumpcap.c
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@ -563,6 +563,7 @@ open_capture_device(interface_options *interface_opts,
Some versions of libpcap may put warnings into the error buffer
if they succeed; to tell if that's happened, we have to clear
the error buffer, and check if it's still a null string. */
g_log(LOG_DOMAIN_CAPTURE_CHILD, G_LOG_LEVEL_DEBUG, "Entering open_capture_device().");
(*open_err_str)[0] = '\0';
#if defined(HAVE_PCAP_OPEN) && defined(HAVE_PCAP_REMOTE)
/*
@ -575,12 +576,18 @@ open_capture_device(interface_options *interface_opts,
auth.username = interface_opts->auth_username;
auth.password = interface_opts->auth_password;
g_log(LOG_DOMAIN_CAPTURE_CHILD, G_LOG_LEVEL_DEBUG,
"Calling pcap_open() using name %s, snaplen %d, promisc_mode %d, datatx_udp %d, nocap_rpcap %d.",
interface_opts->name, interface_opts->snaplen, interface_opts->promisc_mode,
interface_opts->datatx_udp, interface_opts->nocap_rpcap);
pcap_h = pcap_open(interface_opts->name, interface_opts->snaplen,
/* flags */
(interface_opts->promisc_mode ? PCAP_OPENFLAG_PROMISCUOUS : 0) |
(interface_opts->datatx_udp ? PCAP_OPENFLAG_DATATX_UDP : 0) |
(interface_opts->nocap_rpcap ? PCAP_OPENFLAG_NOCAPTURE_RPCAP : 0),
CAP_READ_TIMEOUT, &auth, *open_err_str);
g_log(LOG_DOMAIN_CAPTURE_CHILD, G_LOG_LEVEL_DEBUG,
"pcap_open() returned %p.", (void *)pcap_h);
} else
#endif
{
@ -590,18 +597,32 @@ open_capture_device(interface_options *interface_opts,
* size, otherwise use pcap_open_live().
*/
#ifdef HAVE_PCAP_CREATE
g_log(LOG_DOMAIN_CAPTURE_CHILD, G_LOG_LEVEL_DEBUG,
"Calling pcap_create() using %s.", interface_opts->name);
pcap_h = pcap_create(interface_opts->name, *open_err_str);
g_log(LOG_DOMAIN_CAPTURE_CHILD, G_LOG_LEVEL_DEBUG,
"pcap_create() returned %p.", (void *)pcap_h);
if (pcap_h != NULL) {
g_log(LOG_DOMAIN_CAPTURE_CHILD, G_LOG_LEVEL_DEBUG,
"Calling pcap_set_snaplen() with snaplen %d.", interface_opts->snaplen);
pcap_set_snaplen(pcap_h, interface_opts->snaplen);
g_log(LOG_DOMAIN_CAPTURE_CHILD, G_LOG_LEVEL_DEBUG,
"Calling pcap_set_snaplen() with promisc_mode %d.", interface_opts->promisc_mode);
pcap_set_promisc(pcap_h, interface_opts->promisc_mode);
pcap_set_timeout(pcap_h, CAP_READ_TIMEOUT);
g_log(LOG_DOMAIN_CAPTURE_CHILD, G_LOG_LEVEL_DEBUG,
"buffersize %d.", interface_opts->buffer_size);
if (interface_opts->buffer_size > 1) {
pcap_set_buffer_size(pcap_h, interface_opts->buffer_size * 1024 * 1024);
}
g_log(LOG_DOMAIN_CAPTURE_CHILD, G_LOG_LEVEL_DEBUG,
"monitor_mode %d.", interface_opts->monitor_mode);
if (interface_opts->monitor_mode)
pcap_set_rfmon(pcap_h, 1);
err = pcap_activate(pcap_h);
g_log(LOG_DOMAIN_CAPTURE_CHILD, G_LOG_LEVEL_DEBUG,
"pcap_activate() returned %d.", err);
if (err < 0) {
/* Failed to activate, set to NULL */
if (err == PCAP_ERROR)
@ -613,9 +634,14 @@ open_capture_device(interface_options *interface_opts,
}
}
#else
g_log(LOG_DOMAIN_CAPTURE_CHILD, G_LOG_LEVEL_DEBUG,
"pcap_open_live() calling using name %s, snaplen %d, promisc_mode %d.",
interface_opts->name, interface_opts->snaplen, interface_opts->promisc_mode);
pcap_h = pcap_open_live(interface_opts->name, interface_opts->snaplen,
interface_opts->promisc_mode, CAP_READ_TIMEOUT,
*open_err_str);
g_log(LOG_DOMAIN_CAPTURE_CHILD, G_LOG_LEVEL_DEBUG,
"pcap_open_live() returned %p.", (void *)pcap_h);
#endif
}
g_log(LOG_DOMAIN_CAPTURE_CHILD, G_LOG_LEVEL_DEBUG, "open_capture_device %s : %s", pcap_h ? "SUCCESS" : "FAILURE", interface_opts->name);