Hello again, im the insistent newbie :)
Im trying to get packet pid (process identifier) but netfilter and
nfnetlink functions aren't very clear:
I saw a reference to packed pid in:
struct nlmsghdr
{
__u32 nlmsg_len; /* Length of message including header */
__u16 nlmsg_type; /* Message content */
__u16 nlmsg_flags; /* Additional flags */
__u32 nlmsg_seq; /* Sequence number */
__u32 nlmsg_pid; /* Sending process port ID */
};
but isnt easy to get struct nlmsghdr from netfilter packet, i saw some
could be but im not sure:
extern struct nlmsghdr *nfnl_get_msg_first(struct nfnl_handle *h,
const unsigned char *buf,
size_t len);
I don't know what is buf and len, i saw library code with ddd but
description is very short and i dont know how can i get buf and what
is exactly. Please someone can help me to get packet's pid? I tried
using netstat (-ntap | grep sourceport and destination ip) but is too
slow.
Thanks for your time and sorry for my english.
--
To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
