Commit aac799b7 authored by robertdavidgraham's avatar robertdavidgraham
Browse files

checksum troubles

parent 9ca66251

src/proto-tcp.c

+2 −1
Original line number Diff line number Diff line
@@ -772,6 +772,7 @@ tcpcon_handle(struct TCP_ConnectionTable *tcpcon, struct TCP_Control_Block *tcb, 
            const unsigned char *x;

            switch (tcb->port_them) {

            case 80:

            case 8080:

                x = tcpcon->banner1->http_header;

                x_len = tcpcon->banner1->http_header_length;

                break;

src/templ-pkt.c

+5 −4
Original line number Diff line number Diff line
@@ -548,7 +548,7 @@ template_set_target( 
    px[offset_ip+18] = (unsigned char)((ip_them >>  8) & 0xFF);

    px[offset_ip+19] = (unsigned char)((ip_them >>  0) & 0xFF);



#if 0



    xsum = tmpl->checksum_ip;

    xsum += tmpl->length - tmpl->offset_app;

    xsum += (ip_id&0xFFFF);
@@ -557,7 +557,7 @@ template_set_target( 
    xsum = (xsum >> 16) + (xsum & 0xFFFF);

    xsum = (xsum >> 16) + (xsum & 0xFFFF);

    xsum = ~xsum;

#endif

#if 0

    xsum = *(unsigned*)&px[offset_ip+0];

    xsum += *(unsigned*)&px[offset_ip+4];

    xsum += *(unsigned*)&px[offset_ip+8];
@@ -567,9 +567,10 @@ template_set_target( 
    xsum = (xsum >> 16) + (xsum & 0xFFFF);

    xsum = (xsum >> 16) + (xsum & 0xFFFF);

    xsum = ~xsum;

#endif



    px[offset_ip+11] = (unsigned char)(xsum >> 8);

    px[offset_ip+10] = (unsigned char)(xsum & 0xFF);

    px[offset_ip+10] = (unsigned char)(xsum >> 8);

    px[offset_ip+11] = (unsigned char)(xsum & 0xFF);





    /*