DeforaNetworks/fwknop
DeforaNetworks/fwknop
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Simplify the calculation of pkt_data_len

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This commit is contained in:
Pierre Pronchery 2018-07-18 22:31:36 +02:00
parent d260f502d9
commit c8670aa2d3
1 changed files with 5 additions and 5 deletions
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10
server/process_packet.c
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@ -212,7 +212,7 @@ process_packet_ipv4(fko_srv_options_t * opts, const unsigned char * packet,
pkt_data = ((unsigned char*)(tcph_p+1))+((tcph_p->doff)<<2)-sizeof(struct tcphdr);
pkt_data_len = (pkt_end-(unsigned char*)iph_p)-(pkt_data-(unsigned char*)iph_p);
pkt_data_len = pkt_end - pkt_data;
}
else if (proto == IPPROTO_UDP)
{
@ -224,7 +224,7 @@ process_packet_ipv4(fko_srv_options_t * opts, const unsigned char * packet,
dst_port = ntohs(udph_p->dest);
pkt_data = ((unsigned char*)(udph_p + 1));
pkt_data_len = (pkt_end-(unsigned char*)iph_p)-(pkt_data-(unsigned char*)iph_p);
pkt_data_len = pkt_end - pkt_data;
}
else if (proto == IPPROTO_ICMP)
{
@ -233,7 +233,7 @@ process_packet_ipv4(fko_srv_options_t * opts, const unsigned char * packet,
icmph_p = (struct icmphdr*)((unsigned char*)iph_p + (ip_hdr_words << 2));
pkt_data = ((unsigned char*)(icmph_p + 1));
pkt_data_len = (pkt_end-(unsigned char*)iph_p)-(pkt_data-(unsigned char*)iph_p);
pkt_data_len = pkt_end - pkt_data;
}
else
@ -331,7 +331,7 @@ process_packet_ipv6(fko_srv_options_t * opts, const unsigned char * packet,
pkt_data = ((unsigned char*)(tcph_p+1))+((tcph_p->doff)<<2)-sizeof(struct tcphdr);
pkt_data_len = (pkt_end-(unsigned char*)iph_p)-(pkt_data-(unsigned char*)iph_p);
pkt_data_len = pkt_end - pkt_data;
}
else if (proto == IPPROTO_UDP)
{
@ -343,7 +343,7 @@ process_packet_ipv6(fko_srv_options_t * opts, const unsigned char * packet,
dst_port = ntohs(udph_p->dest);
pkt_data = ((unsigned char*)(udph_p + 1));
pkt_data_len = (pkt_end-(unsigned char*)iph_p)-(pkt_data-(unsigned char*)iph_p);
pkt_data_len = pkt_end - pkt_data;
}
else