how can I get the saddress from the struct "skbuff"

Question

Hi, I have a program that it need get the source address from the struct "skbuff", In the previous kernel version, I can get the "saddr" using the following line:

static __u32
get_src_ip(const struct sk_buff *skb){
    return ntohl(skb->nh.iph->saddr);
}

The following is error message:

error: 'const struct sk_buff' has no member named 'nh'

Who can tell me the right code? thanks!

Answer 1

sk_buff changed it structure name since Linux 2.6.22 . You should use skb->network_header instead.

Well, you may need to also change lots of member variable names - just reference to the latest manual.