Diffstat (limited to 'noncore/net/wellenreiter/libwellenreiter/source/sniff.cc') (more/less context) (show whitespace changes)
| -rw-r--r-- | noncore/net/wellenreiter/libwellenreiter/source/sniff.cc | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/noncore/net/wellenreiter/libwellenreiter/source/sniff.cc b/noncore/net/wellenreiter/libwellenreiter/source/sniff.cc index 6e512c4..0616a7e 100644 --- a/noncore/net/wellenreiter/libwellenreiter/source/sniff.cc +++ b/noncore/net/wellenreiter/libwellenreiter/source/sniff.cc @@ -12,2 +12,73 @@ #include "wl_proto.hh" +#include "cardmode.hh" + +int start_sniffer(const char *device, int cardtype ) +{ + + /* This function initialize the sniffing + 1. Check for lo interface + 2. bring it into promsicous mode and UP + 3. bring device into rfmon mode + start the pcap sniffing process. + */ + + /* Do we have the device name ? */ + if(device == NULL) + { + wl_logerr("start_sniffer, parameter \"device\" is empty, please check your config"); + return 0; + } + + /* Some Linux System does not have a loopback device lo with 127.0.0.1 so sockets could + not made correctly, let the proggie check that and proceed only if it exists. */ + if (!check_loopback()) + { + wl_logerr("start_sniffer, check_loopback failed, cannot continue without a loopback"); + return 0; + } + + /* Set the card into regulary promiscous mode first and set the UP flag, in case no ip + was given. It would work without the promisc flags but i dont like this */ + if (!card_set_promisc_up(device)) + { + wl_logerr("start_sniffer, card_set_promisc_up failed, cannot continue"); + return 0; + } + + /* Set card into the rfmon/monitoring mode */ + if (!card_into_monitormode(device,cardtype)) + { + wl_logerr("start_sniffer, cannot put wireless card into monitoring mode, aborting"); + return 0; + } + + /* setup pcap handle, used for the packet decoding etc. */ + if((handletopcap = pcap_open_live((char *) device, BUFSIZ, 1, 0, NULL)) == NULL) + { + wl_logerr("pcap_open_live() failed: %s", strerror(errno)); + return 0; + } + +#ifdef HAVE_PCAP_NONBLOCK + pcap_setnonblock(handletopcap, 1, NULL); +#endif + return 1; +} + + +int stop_sniffer(const char *device, int cardtype) +{ + /* This function terminates the sniffing + 1. get the device state + 2. remove the rfmon state + 3. Remove the promisc state + start the pcap sniffing process. + + */ + + /* Do we really have at least a lo interface with the 127.0.0.1 ? */ + return 0; + +} + |