linux-imx

/*

 * INET        An implementation of the TCP/IP protocol suite for the LINUX

 *             operating system.  INET is implemented using the  BSD Socket

 *             interface as the means of communication with the user level.

 *

 *             Support for INET6 connection oriented protocols.

 *

 * Authors:    See the TCPv6 sources

 *

 *             This program is free software; you can redistribute it and/or

 *             modify it under the terms of the GNU General Public License

 *             as published by the Free Software Foundation; either version

 *             2 of the License, or(at your option) any later version.

 */

​

#include <linux/module.h>

#include <linux/in6.h>

#include <linux/ipv6.h>

#include <linux/jhash.h>

#include <linux/slab.h>

​

#include <net/addrconf.h>

#include <net/inet_connection_sock.h>

#include <net/inet_ecn.h>

#include <net/inet_hashtables.h>

#include <net/ip6_route.h>

#include <net/sock.h>

#include <net/inet6_connection_sock.h>

#include <net/sock_reuseport.h>

​

struct dst_entry *inet6_csk_route_req(const struct sock *sk,

                      struct flowi6 *fl6,

                      const struct request_sock *req,

                      u8 proto)

{

    struct inet_request_sock *ireq = inet_rsk(req);

    const struct ipv6_pinfo *np = inet6_sk(sk);

    struct in6_addr *final_p, final;

    struct dst_entry *dst;

​

    memset(fl6, 0, sizeof(*fl6));

    fl6->flowi6_proto = proto;

    fl6->daddr = ireq->ir_v6_rmt_addr;

    rcu_read_lock();

    final_p = fl6_update_dst(fl6, rcu_dereference(np->opt), &final);

    rcu_read_unlock();

    fl6->saddr = ireq->ir_v6_loc_addr;

    fl6->flowi6_oif = ireq->ir_iif;

    fl6->flowi6_mark = ireq->ir_mark;

    fl6->fl6_dport = ireq->ir_rmt_port;

    fl6->fl6_sport = htons(ireq->ir_num);

    fl6->flowi6_uid = sk->sk_uid;

    security_req_classify_flow(req, flowi6_to_flowi(fl6));

​

    dst = ip6_dst_lookup_flow(sk, fl6, final_p);

    if (IS_ERR(dst))

        return NULL;

​

    return dst;

}

EXPORT_SYMBOL(inet6_csk_route_req);

​

void inet6_csk_addr2sockaddr(struct sock *sk, struct sockaddr *uaddr)