diff options
Diffstat (limited to 'src/ptunnel.c')
| -rw-r--r-- | src/ptunnel.c | 35 |
1 files changed, 34 insertions, 1 deletions
diff --git a/src/ptunnel.c b/src/ptunnel.c index 01e0ef5..5089eca 100644 --- a/src/ptunnel.c +++ b/src/ptunnel.c @@ -100,6 +100,31 @@ proxy_desc_t *chain = 0; const char *state_name[kNum_proto_types] = { "start", "ack ", "data ", "close", "authenticate" }; +#ifdef HAVE_PCAP +static void print_pcap_devices(void) { + pcap_if_t *devs, *cur_dev; + pcap_addr_t *cur_addr; + char errbuf[PCAP_ERRBUF_SIZE+1]; + + if (pcap_findalldevs(&devs, errbuf)) { + pt_log(kLog_error, "List all available pcap devices failed: %s.\n", errbuf); + } + printf("Available pcap devices:\n"); + for (cur_dev = devs; cur_dev; cur_dev = cur_dev->next) { + if (cur_dev->description) + printf("\n\t%s%c '%s'\n", cur_dev->name, (cur_dev->addresses ? ':' : ' '), + cur_dev->description); + else + printf("\n\t%s%c\n", cur_dev->name, (cur_dev->addresses ? ':' : ' ')); + for (cur_addr = cur_dev->addresses; cur_addr; cur_addr = cur_addr->next) { + if (cur_addr->addr->sa_family == AF_INET) + printf("\t\t%s\n", inet_ntoa(((struct sockaddr_in*)cur_addr->addr)->sin_addr)); + } + } + pcap_freealldevs(devs); +} +#endif + /* Let the fun begin! */ int main(int argc, char *argv[]) { #ifndef WIN32 @@ -139,6 +164,11 @@ int main(int argc, char *argv[]) { /* Init ptunnel RNG */ pt_random(); + if (opts.list_pcap_devices) { + print_pcap_devices(); + return 0; + } + #ifdef HAVE_PCAP if (opts.pcap && opts.udp) { pt_log(kLog_error, "Packet capture is not supported (or needed) when using UDP for transport.\n"); @@ -146,7 +176,10 @@ int main(int argc, char *argv[]) { } #ifdef WIN32 if (!opts.pcap && !opts.udp) { - pt_log(kLog_info, "WARNING: Running ptunnel-ng on Windows in ICMP mode without WinPcap enabled is not supported and may not work!\n"); + pt_log(kLog_info, "Running ptunnel-ng on Windows in ICMP mode without WinPcap enabled is not supported and may not work!\n"); + pt_log(kLog_info, "If you encounter problems, install WinPCAP from:\n"); + pt_log(kLog_info, "https://www.winpcap.org/install/default.htm or for WIN10: https://nmap.org/npcap/windows-10.html\n"); + pt_log(kLog_info, "After WinPCAP is installed, you can list pcap devices with: --list-pcap-devices\n"); } #endif #endif |