From 6df3dfdf18115f5a3ce8477749ecef77a66260c0 Mon Sep 17 00:00:00 2001
From: mjm <mjm>
Date: Wed, 27 Nov 2002 22:34:42 +0000
Subject: added cardmode and sniffer

---
(limited to 'noncore/net/wellenreiter/libwellenreiter/source/sniff.hh')

diff --git a/noncore/net/wellenreiter/libwellenreiter/source/sniff.hh b/noncore/net/wellenreiter/libwellenreiter/source/sniff.hh
new file mode 100644
index 0000000..fa8519b
--- a/dev/null
+++ b/noncore/net/wellenreiter/libwellenreiter/source/sniff.hh
@@ -0,0 +1,64 @@
+/* $Id$ */
+
+#ifndef SNIFF_HH
+#define SNIFF_HH
+
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <pcap.h>  
+#include <errno.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <net/bpf.h>
+
+#define   NONBROADCASTING "non-broadcasting"
+
+/* holds all the interresting data */
+struct packetinfo
+{
+  int isvalid;
+  int pktlen;
+  int fctype;
+  int fcsubtype;
+  int fc_wep;
+  int cap_WEP;
+  int cap_IBSS;
+  int cap_ESS;
+  int channel;
+  char bssid[sizeof("00:00:00:00:00:00")];
+  char desthwaddr[sizeof("00:00:00:00:00:00")];
+  char sndhwaddr[sizeof("00:00:00:00:00:00")];
+  char *ssid;	
+  int ssid_len;
+};
+
+void process_packets(const struct pcap_pkthdr* pkthdr,const u_char* packet);
+int decode_80211b_hdr(const u_char *p,struct packetinfo *ppinfo);
+void etheraddr_string(register const u_char *ep,char * text);
+int handle_beacon(u_int16_t fc, const u_char *p,struct packetinfo *ppinfo);
+
+int GetHeaderLength(u_int16_t fc);
+
+/*
+ * True if  "l" bytes of "var" were captured.
+ *
+ * The "snapend - (l) <= snapend" checks to make sure "l" isn't so large
+ * that "snapend - (l)" underflows.
+ *
+ * The check is for <= rather than < because "l" might be 0.
+ */
+#define TTEST2(var, l) (snapend - (l) <= snapend && \
+			(const u_char *)&(var) <= snapend - (l))
+
+/* True if "var" was captured */
+#define TTEST(var) TTEST2(var, sizeof(var))
+
+/* Bail if "l" bytes of "var" were not captured */
+#define TCHECK2(var, l) if (!TTEST2(var, l)) goto trunc
+
+/* Bail if "var" was not captured */
+#define TCHECK(var) TCHECK2(var, sizeof(var))
+
+#endif /* SNIFF_HH */
--
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