add some test code for WPS exchange

this allows to test the WPS exchange code with a .pcap file.

src/Makefile

@@ -93,9 +93,11 @@ LIB_OBJS=libwps/libwps.o $(WPS_OBJS) $(UTILS_OBJS) \
 	$(TLS_OBJS) $(CRYPTO_OBJS) $(LWE_OBJS)
 
 
-PROG_OBJS=argsparser.o globule.o init.o sigint.o iface.o sigalrm.o \
- misc.o cracker.o session.o send.o pins.o 80211.o exchange.o builder.o \
- keys.o crc.o pixie.o wpscrack.o wpsmon.o main.o version.o
+MAIN_OBJS=globule.o init.o sigint.o iface.o sigalrm.o \
+ misc.o session.o send.o pins.o 80211.o builder.o \
+ keys.o crc.o pixie.o version.o
+
+PROG_OBJS=$(MAIN_OBJS) exchange.o argsparser.o wpscrack.o wpsmon.o cracker.o main.o
 
 # Version of the Wireless Tools
 WT_VERSION := $(shell sed -ne "/WT_VERSION/{s:\([^0-9]*\)::;p;q;}" < lwe/iwlib.h )
@@ -120,6 +122,11 @@ wash: reaver
 reaver: $(PROG_OBJS) $(LIB_OBJS)
 	$(CC) $(CFLAGS) $(INC) $(PROG_OBJS) $(LIB_OBJS) $(LDFLAGS) -o reaver
 
+extest.o: exchange.c
+	$(CC) $(CFLAGS) -g3 -O0 -DEX_TEST -c exchange.c -o extest.o
+extest: extest.o $(LIB_OBJS) $(MAIN_OBJS)
+	$(CC) $(LIB_OBJS) extest.o $(MAIN_OBJS) $(LDFLAGS) -o extest
+
 version.o: version.h
 version.h: $(wildcard $(srcdir)/VERSION $(srcdir)/../.git)
 	printf '#define R_VERSION "%s"\n' "$$(cd $(srcdir); sh version.sh)"  > $@

src/exchange.c

@@ -512,3 +512,58 @@ int parse_nack(const void *data, size_t data_size)
 
 	return ret_val;
 }
+
+
+#ifdef EX_TEST
+
+#include "wpsmon.h"
+
+int main(int argc, char** argv) {
+	globule_init();
+	// arg 1: filename of cap
+	set_handle(capture_init(argv[1]));
+	if(!get_handle()) {
+		cprintf(CRITICAL, "[X] ERROR: Failed to open '%s' for capturing\n", get_iface());
+		goto end;
+	}
+	struct bpf_program bpf = { 0 };
+	if(pcap_compile(get_handle(), &bpf, PACKET_FILTER, 0, 0) != 0) {
+		cprintf(CRITICAL, "[X] ERROR: Failed to compile packet filter\n");
+		cprintf(CRITICAL, "[X] PCAP: %s\n", pcap_geterr(get_handle()));
+		goto end;
+	}
+
+	//arg 2: "our" mac for testing
+	unsigned char mac[6];
+	str2mac(argv[2], mac);
+	set_mac(mac);
+
+	//arg 3: bssid of "target" AP
+	str2mac(argv[3], mac);
+	set_bssid(mac);
+
+	struct pcap_pkthdr header;
+	const unsigned char *packet;
+	enum wps_type packet_type = UNKNOWN;
+
+	unsigned long packet_number = 0;
+
+	while((packet = next_packet(&header))) {
+		packet_number++;
+		packet_type = process_packet(packet, &header);
+		switch(packet_type) {
+			case UNKNOWN:
+				dprintf(2, "UNK\n");
+				break;
+			case WPS_PT_DEAUTH:
+				dprintf(2, "DEAUTH\n");
+				break;
+		}
+	}
+
+	end:
+	globule_deinit();
+	return 0;
+}
+
+#endif