linux/net/sctp/diag.c

// SPDX-License-Identifier: GPL-2.0-or-later
/* SCTP kernel implementation
 * (C) Copyright Red Hat Inc. 2017
 *
 * This file is part of the SCTP kernel implementation
 *
 * These functions implement sctp diag support.
 *
 * Please send any bug reports or fixes you make to the
 * email addresched(es):
 *    lksctp developers <[email protected]>
 *
 * Written or modified by:
 *    Xin Long <[email protected]>
 */

#include <linux/module.h>
#include <linux/inet_diag.h>
#include <linux/sock_diag.h>
#include <net/sctp/sctp.h>

static void sctp_diag_get_info(struct sock *sk, struct inet_diag_msg *r,
			       void *info);

/* define some functions to make asoc/ep fill look clean */
static void inet_diag_msg_sctpasoc_fill(struct inet_diag_msg *r,
					struct sock *sk,
					struct sctp_association *asoc)
{ … }

static int inet_diag_msg_sctpladdrs_fill(struct sk_buff *skb,
					 struct list_head *address_list)
{ … }

static int inet_diag_msg_sctpaddrs_fill(struct sk_buff *skb,
					struct sctp_association *asoc)
{ … }

/* sctp asoc/ep fill*/
static int inet_sctp_diag_fill(struct sock *sk, struct sctp_association *asoc,
			       struct sk_buff *skb,
			       const struct inet_diag_req_v2 *req,
			       struct user_namespace *user_ns,
			       int portid, u32 seq, u16 nlmsg_flags,
			       const struct nlmsghdr *unlh,
			       bool net_admin)
{ … }

/* callback and param */
struct sctp_comm_param { … };

static size_t inet_assoc_attr_size(struct sctp_association *asoc)
{ … }

static int sctp_sock_dump_one(struct sctp_endpoint *ep, struct sctp_transport *tsp, void *p)
{ … }

static int sctp_sock_dump(struct sctp_endpoint *ep, struct sctp_transport *tsp, void *p)
{ … }

static int sctp_sock_filter(struct sctp_endpoint *ep, struct sctp_transport *tsp, void *p)
{ … }

static int sctp_ep_dump(struct sctp_endpoint *ep, void *p)
{ … }

/* define the functions for sctp_diag_handler*/
static void sctp_diag_get_info(struct sock *sk, struct inet_diag_msg *r,
			       void *info)
{ … }

static int sctp_diag_dump_one(struct netlink_callback *cb,
			      const struct inet_diag_req_v2 *req)
{ … }

static void sctp_diag_dump(struct sk_buff *skb, struct netlink_callback *cb,
			   const struct inet_diag_req_v2 *r)
{ … }

static const struct inet_diag_handler sctp_diag_handler = …;

static int __init sctp_diag_init(void)
{ … }

static void __exit sctp_diag_exit(void)
{ … }

module_init(…) …;
module_exit(sctp_diag_exit);
MODULE_LICENSE(…) …;
MODULE_DESCRIPTION(…) …;
MODULE_ALIAS_NET_PF_PROTO_TYPE(…);