[c-prog] strange structure assignment !!!!

[Ahmed Shabana]

When I navigate  the source code of a linux module "ipp2p-0.8.2"

 I found this

[/CODE]
static
struct iptables_match ipp2p=
{
    .next           = NULL,
    .name           = "ipp2p",
    .version        = IPTABLES_VERSION,
    .size           = IPT_ALIGN(sizeof(struct ipt_p2p_info)),
    .userspacesize  = IPT_ALIGN(sizeof(struct ipt_p2p_info)),
    .help           = &help,
    .init           = &init,
    .parse          = &parse,
    .final_check    = &final_check,
    .print          = &print,
    .save           = &save,
    .extra_opts     = opts
};
[CODE/]

can any one till me exactly what is this
?