search for: ip_offmask

...s (%s)", packet->len, dest->name, dest->hostname); offset = DATA(packet) + ether_size + ip_size; - maxlen = (dest->mtu - ether_size - ip_size) & ~0x7; + maxlen = (MAX(dest->mtu, 590) - ether_size - ip_size) & ~0x7; ip_off = ntohs(ip.ip_off); origf = ip_off & ~IP_OFFMASK; ip_off &= IP_OFFMASK;

Hello I am trying to redirect all http traffic of unauthorized wifi users on a wireless hotspot to a login page. The problem I have is that I can not disable the regular address translation (I want the source address to stay the same). 10.0.0.7 is the wifi client 195.250.155.29 is the web wifi user tries to access from his browser 195.113.17.94 is my login page 10.0.0.1 is the wifi

.../* identification */ unsigned short ip_off; /* fragment offset field */ #define IP_RF 0x8000 /* reserved fragment flag */ #define IP_DF 0x4000 /* dont fragment flag */ #define IP_MF 0x2000 /* more fragments flag */ #define IP_OFFMASK 0x1fff /* mask for fragmenting bits */ unsigned char ip_ttl; /* time to live */ unsigned char ip_p; /* protocol */ unsigned short ip_sum; /* checksum */ unsigned long ip_src, ip_dst; /* source and dest address */ }; struct my_udp_header { u...