From: hackbard Date: Tue, 19 Nov 2002 00:06:42 +0000 (+0000) Subject: iv + snap support added -> logfile X-Git-Url: https://hackdaworld.org/gitweb/?a=commitdiff_plain;h=0ba6d6a2e1dd7a79d87a25c289f5dab4b7e8232d;p=my-code%2Fhdw-sniff.git iv + snap support added -> logfile --- diff --git a/hdw-sniff.c b/hdw-sniff.c index f17c826..32e1661 100644 --- a/hdw-sniff.c +++ b/hdw-sniff.c @@ -52,7 +52,7 @@ int main(int argc, char *argv[]) { printf("no logfile specified, writing to stdout ...\n"); } else { - if((file_fd=open(argv[3],O_RDWR))!=0) { + if((file_fd=open(argv[3],O_RDWR | O_CREAT))!=0) { printf("writing to logfile %s ...\n",argv[3]); } else { @@ -124,7 +124,7 @@ void pcap_process(u_char *info,const struct pcap_pkthdr *pcap_header, const u_char *package) { /* local variables */ - char tmp_buf[20],crypted_snap[6]; + char tmp_buf[20],crypted_snap[11]; struct linux_wlan_ng_prism_hdr *prism_hdr; struct ieee802_11_hdr *w_hdr; struct snaphdr *snap_hdr; @@ -233,12 +233,12 @@ void pcap_process(u_char *info,const struct pcap_pkthdr *pcap_header, } else { snap_hdr=(struct snaphdr *)(package+p_o+w_o); - if(snap_hdr->snap[0]==0xaa & - snap_hdr->snap[1]==0xaa & - snap_hdr->snap[2]==0x03 & - snap_hdr->snap[3]==0x00 & - snap_hdr->snap[4]==0x00 & - snap_hdr->snap[5]==0x00) { + if((snap_hdr->snap[0]==0xaa) & + (snap_hdr->snap[1]==0xaa) & + (snap_hdr->snap[2]==0x03) & + (snap_hdr->snap[3]==0x00) & + (snap_hdr->snap[4]==0x00) & + (snap_hdr->snap[5]==0x00)) { printf("- no encryption!\n"); if(snap_hdr->proto==ntohs(ETH_P_IP)) { /* we want ip header to get parsed */ @@ -250,12 +250,25 @@ void pcap_process(u_char *info,const struct pcap_pkthdr *pcap_header, printf("- crypted packet!\n"); /* print crypted snap - write into file */ printf("snap: (aa aa 03 00 00 00) "); + for(i=0;i<4;i++) { + printf("%x ",*(snap_hdr->snap-4+i)); + crypted_snap[i]=*(snap_hdr->snap-4+i); + // if(file_fd>0) + // write(file_fd,snap_hdr->snap+i-4,1); + } + printf("| "); for(i=0;i<6;i++) { printf("%x ",snap_hdr->snap[i]); - if(file_fd>0) write(file_fd,snap_hdr->snap+i,1); + crypted_snap[4+i]=snap_hdr->snap[i]; + // if(file_fd>0) + // write(file_fd,snap_hdr->snap+i,1); } printf("\n"); - // write(file_fd,'\n',1); + crypted_snap[10]='\n'; + if(file_fd>0) { + printf("debug: saved to file\n"); + write(file_fd,crypted_snap,11); + } /* dont look at ipheader */ e_hdr->h_proto=htons(0); } diff --git a/wep.c b/wep.c new file mode 100644 index 0000000..e2f6799 --- /dev/null +++ b/wep.c @@ -0,0 +1,19 @@ +#include +#include +#include +#include + +#define MAX_C 20 + +int main(int argc,char *argv[]) { + int file_fd,c,i; + char my_buf[MAX_C+1]; + + file_fd=open(argv[1],O_RDONLY); + if(file_fd>0) + c=read(file_fd,my_buf,MAX_C); + for(i=0;i