From: hackbard <hackbard>
Date: Wed, 13 Nov 2002 23:47:31 +0000 (+0000)
Subject: fc
X-Git-Url: https://hackdaworld.org/gitweb/?p=my-code%2Fhdw-sniff.git;a=commitdiff_plain;h=7a55b727f19281d64c03359e79ff900d5e154d81

fc
---

diff --git a/hdw-sniff.c b/hdw-sniff.c
index 98f6c6e..3aa657b 100644
--- a/hdw-sniff.c
+++ b/hdw-sniff.c
@@ -120,6 +120,7 @@ void pcap_process(u_char *info,const struct pcap_pkthdr *pcap_header,
 			const u_char *package) {
 	
 	/* local variables */
+	char tmp_buf[20];
 	struct linux_wlan_ng_prism_hdr *prism_hdr;
 	struct ieee802_11_hdr *w_hdr;
 	struct ethhdr *e_hdr;
@@ -149,9 +150,9 @@ void pcap_process(u_char *info,const struct pcap_pkthdr *pcap_header,
 		(strncmp(my_info_struct->dev,"wlan",4)==0)) {
 	printf("prism header: (%d bytes)\n",p_o);
 	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);
+	printf("| message code/length: %d/%d |\t",prism_hdr->msgcode,
+						prism_hdr->msglen);
+	printf("device: %s |\n",prism_hdr->devname);
 	/* ieee802.11 header */
 	printf("ieee802.11 header: (%d bytes)\n",w_o);
 	w_hdr=(struct ieee802_11_hdr *)(package+p_o);
@@ -161,16 +162,23 @@ void pcap_process(u_char *info,const struct pcap_pkthdr *pcap_header,
 		printf("%s%d%s",(i==0?"|":""),
 				(((w_hdr->frame_ctl) & (1<<i))>0?1:0),
 				(i==15?"|\n":"|"));
-		printf("fc: | v | t |  s-t  |t|f|m|r|p|m|w|o|\n");
+	printf("    | v | t |  s-t  |t|f|m|r|p|m|w|o|\n");
+	printf("debug: %d\n",(w_hdr->frame_ctl)<<15);
+	if((w_hdr->frame_ctl & IEEE802_11_STYPE_BEACON)>0) strcpy(tmp_buf,"beacon");
+	else strcpy(tmp_buf,"unknown");
+
+	printf("=> %s\n",tmp_buf);
 	
-	printf("ion_id: %x\n",ntohs(w_hdr->duration_id));
+	printf("duration/id: %x\n",w_hdr->duration_id);
 	printf("version check ... %s\n",
-	((ntohs(w_hdr->frame_ctl) & IEEE802_11_FCTL_VERS)==0x00)?
+	((w_hdr->frame_ctl & IEEE802_11_FCTL_VERS)==0x00)?
 							"ok":"unknown");
 	}
 
 	/* ieee802.3 */
 	/* ethernet */
+	if((strncmp(my_info_struct->dev,"eth",3)==0) | 
+		((w_hdr->frame_ctl & IEEE802_11_FTYPE_DATA)>0)) {
 	printf("ethernet: (%d bytes)\n",e_o);
 	e_hdr=(struct ethhdr *)(package+p_o+w_o);
 	/* what types ? */
@@ -209,6 +217,9 @@ void pcap_process(u_char *info,const struct pcap_pkthdr *pcap_header,
 						ntohs(ip_hdr->protocol));
 		// printf("chksum: %x\n",ntohs(ip_hdr->ip_sum));
 	}
+	}
+
+	/* check what we have ... */
 	printf("all dump: (hex)\n");
 	for(i=p_o+w_o;i<pcap_header->caplen;i++)
 		printf("%x ",*(package+i));