HI all,
I am writing simple dhcpv6 client. I gone through the rfc of dhcp and
ipv6 and understand basic. With the understanding i started to implement
SOLICIT request option.
I have created a packet with the below structure.
struct udp_dhcp6_packet {
struct ip6_hdr ip;
struct udphdr udp;
struct dhcp6_Message data;
} PACKED;
In the above structure i am able to assign the value for udp and
data(i.e struct udphdr, struct dhcp6_Message). But i could not able to
set the value for ip. Below is the structure of ip6_hdr.
struct ip6_hdr
{
union {
struct ip6_hdrctl
{
uint32_t ip6_un1_flow; /* 4 bits version, 8 bits TC,
20 bits flow-ID */
uint16_t ip6_un1_plen; /* payload length */
uint8_t ip6_un1_nxt; /* next header */
uint8_t ip6_un1_hlim; /* hop limit */
} ip6_un1;
uint8_t ip6_un2_vfc; /* 4 bits version, top 4 bits tclass */
} ip6_ctlun;
struct in6_addr ip6_src; /* source address */
struct in6_addr ip6_dst; /* destination address */
};
I want to set the ip6_dst value as ff02::1:2 and the ip6_src address as
fe80::220:4aff:fea8:8e4a and remaining options. But i dont have any idea
how to set these values. I googled many times and not able to get the
idea to creat ipv6 header.
Kindly help me to solve my problem?
Note :
I don't know whether this is right place to ask this question . If i am
wrong , i am sorry.
Thanks in advance ,
Prabhu
_______________________________________________
Kernelnewbies mailing list
[email protected]
http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
