X-Git-Url: https://hackdaworld.org/gitweb/?a=blobdiff_plain;ds=sidebyside;f=hdw-sniff.c;h=ab67722a20b5565004269f8ebd33dc40664de063;hb=95e482eef2af91c6bb150d4e92cb73503d6b8fb9;hp=96ef4a22eb7488e1b82b2eaba231e9804ffdfab1;hpb=0e50ececb00ef7a80203545d27edfaf4bc95d4b8;p=my-code%2Fhdw-sniff.git

diff --git a/hdw-sniff.c b/hdw-sniff.c
index 96ef4a2..ab67722 100644
--- a/hdw-sniff.c
+++ b/hdw-sniff.c
@@ -5,12 +5,18 @@
  */
 
 #include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <sys/socket.h>
+#include <time.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
 #include <pcap.h>
 
 /* IEEE 802.3 stuff -- i will concentrate on .11 stuff before! */
 #include <netinet/if_ether.h>  /* for ethhdr struct */
 #include <netinet/ip.h> /* ip */
-#include <netinet/in.h>	/* in_addr */
+#include <netinet/in.h>	/* in_addr , inet_ntoa */
 
 /* IEEE 802.11 stuff -- will become one include later ... */
 #include "ieee80211.h" /* from hunz's aeolus, short hostap_wlan.h */
@@ -24,12 +30,12 @@ int main(int argc, char *argv[]) {
 	pcap_t *pcap_handle;
 	char sys_call[30];
 	FILE *logfile;
-	int count;
-	int *p_count;
+	struct info_struct my_info_struct;
 	
 	/* parse the arguments */
 	if(argc<3) {
-		printf("usage: %s <interface> <monitor mode> <logfile>\n",argv[0]);
+		printf("usage: %s <interface> <monitor mode> <logfile>\n",
+			argv[0]);
 		return 0;
 	}
 	if(argc!=4) {
@@ -45,10 +51,13 @@ int main(int argc, char *argv[]) {
 	}
 			
 	/* setting up device and set monitor mode */
-	if(atoi(argv[2])==1 && (strncmp(argv[1],"wlan",4)==0)) {
-		printf("setting to monitor mode 3\n");
-		sprintf(sys_call,"iwpriv %s monitor 3",argv[1]);
-		system(sys_call);
+	if(atoi(argv[2])==1) {
+		printf("setting to monitor mode\n");
+		if(strncmp(argv[1],"wlan",4)==0)
+			sprintf(sys_call,"iwpriv %s monitor 3",argv[1]);
+		if(strncmp(argv[1],"eth",3)==0)
+			sprintf(sys_call,"ifconfig %s promisc",argv[1]);
+	system(sys_call);
 	}
 	printf("setting up interface\n");
 	sprintf(sys_call,"ifconfig %s up",argv[1]);
@@ -62,37 +71,65 @@ int main(int argc, char *argv[]) {
 	}
 	
 	/* grab a package until user breaks */
-	count=0;
-	p_count=&count;
-	pcap_dispatch(pcap_handle,-1,(pcap_handler)pcap_process,
-			(u_char *)&p_count);
+	my_info_struct.count=0;
+	my_info_struct.mmode=argv[2][0];
+	strcpy(my_info_struct.dev,argv[1]);
+	/* do loopp */
+	pcap_loop(pcap_handle,-1,pcap_process,(u_char *)&my_info_struct);
+	return 0;
 }
 
 
 /* pcap_process callback function */
-void pcap_process(u_char *count,const struct pcap_pkthdr *pcap_header,
+void pcap_process(u_char *info,const struct pcap_pkthdr *pcap_header,
 			const u_char *package) {
 	
 	/* local variables */
-	struct ethhdr *e_hdr;
-	struct ip *ip_hdr;
+	struct linux_wlan_ng_prism_hdr *prism_hdr;
 	struct ieee802_11_hdr *w_hdr;
+	struct ip *ip_hdr;
+	struct ethhdr *e_hdr;
+	struct info_struct *my_info_struct;
 	int i;
-	int *p_count;
 
-	p_count=(int *)count;
-	++(*p_count);
+	my_info_struct=(struct info_struct *)info;
+	++(my_info_struct->count);
 
 	printf("\n");
-	printf("---> package %d ---- %s",count,
-			ctime((const time_t*)pcap_header->ts.tv_sec));
-	printf("pcap header: ");
-	printf("capture length=%d ",pcap_header->caplen);
-	printf("length(off wire)=%d\n",pcap_header->len);
+	printf("---> package %d ---- %s",my_info_struct->count,
+			ctime((const time_t*)&(pcap_header->ts.tv_sec)));
+	printf("pcap header:\n");
+	printf("capture_length: %d (dec.)\t",pcap_header->caplen);
+	printf("length(off wire): %d (dec.)\n",pcap_header->len);
 	
-	/* is ieee802.11 ? -- we assume yes :) */
-	/* ...					*/
+	/* prism wlan ng headers */
+	if((my_info_struct->mmode-0x30==1) && 
+		(strncmp(my_info_struct->dev,"wlan",4)==0)) {
+	printf("prism header:\n");
+	prism_hdr=(struct linux_wlan_ng_prism_hdr *)package;
+	printf("message code/length: %d/%d\n",ntohs(prism_hdr->msgcode),
+						ntohs(prism_hdr->msglen));
+	printf("device: %s\n",prism_hdr->devname);
 
+	/* ieee802.11 header */
+	printf("ieee802.11 header:\n");
+	package+=sizeof(struct linux_wlan_ng_prism_hdr);
+	w_hdr=(struct ieee802_11_hdr *)package;
+	
+	printf("debug:\n");
+	for(i=0;i<16;i++) {
+		printf("%x -> ",1<<i);
+		printf("%x\n",(ntohs(w_hdr->frame_ctl) & (1<<i)));
+	}
+	printf("frame_control: %x duration_id: %x\n",ntohs(w_hdr->frame_ctl),
+						ntohs(w_hdr->duration_id));
+	printf("version check ... %s\n",
+	((ntohs(w_hdr->frame_ctl) & IEEE802_11_FCTL_VERS)==0x00)?
+							"ok":"unknown");
+	// printf("type: 
+	/* skip ieee802.11 header */
+	package=package+sizeof(struct ieee802_11_hdr);
+	}
 
 	/* ieee802.3 */
 	/* ethernet */
@@ -122,12 +159,11 @@ void pcap_process(u_char *count,const struct pcap_pkthdr *pcap_header,
 		printf("time2live = %x ip_proto = %x\n",ntohs(ip_hdr->ip_ttl),
 						ntohs(ip_hdr->ip_p));
 		printf("chksum: %x\n",ntohs(ip_hdr->ip_sum));
-		
-		
 	}
 	printf("all_hex_dump:\n");
 	for(i=sizeof(struct ethhdr);i<pcap_header->caplen;i++)
 		printf("%x ",*(package+i));
+	printf("\n");
 }