Assuming mbuf data includes ethernet header struct ipv4_hdr *iphdr = rte_pktmbuf_mtod_offset(pkt, struct ipv4_hdr *, sizeof(struct ether_hdr));
uint32_t ihlen = (iphdr->version_ihl & 0x0f)*4; struct tcp_hdr *th = (struct tcp_hdr *)((char *)iphdr + ihlen); uint32_t thlen = (th->data_off & 0xf0)*4; struct ssl_recrod *ssl = ( struct ssl_recrod *) ((char *)th + thlen); On Wed, Aug 1, 2018 at 6:44 PM, Matt Laswell <lasw...@infinite.io> wrote: > At a minimum, you're going to want to account for options in the TCP and IP > headers. A better way would be to do a little parsing of the IP header to > get the header length field, then using that to find the start of the TCP > header, etc. > > -- > Matt Laswell > infinite io, inc. > > On Wed, Aug 1, 2018 at 5:20 AM, Konstantinos Schoinas <ece8...@upnet.gr> > wrote: > > > Hello, > > > > Can somebody tell me how to cast a tcp packet to an ssl packet? > > > > I tried these lines but i dont things they are completely right. > > > > Struct ssl_record { > > uint8_t type; > > uint16_t version; > > uint16_t length; > > } > > > > > > tcp = (struct tcp_hdr *)(ip + 1); > > ssl = (struct ssl_record *)(tcp + 1); > > > > >