linux/net/rxrpc/server_key.c

// SPDX-License-Identifier: GPL-2.0-or-later
/* RxRPC key management
 *
 * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
 * Written by David Howells ([email protected])
 *
 * RxRPC keys should have a description of describing their purpose:
 *	"[email protected]>
 */

#define pr_fmt(fmt) …

#include <crypto/skcipher.h>
#include <linux/module.h>
#include <linux/net.h>
#include <linux/skbuff.h>
#include <linux/key-type.h>
#include <linux/ctype.h>
#include <linux/slab.h>
#include <net/sock.h>
#include <net/af_rxrpc.h>
#include <keys/rxrpc-type.h>
#include <keys/user-type.h>
#include "ar-internal.h"

static int rxrpc_vet_description_s(const char *);
static int rxrpc_preparse_s(struct key_preparsed_payload *);
static void rxrpc_free_preparse_s(struct key_preparsed_payload *);
static void rxrpc_destroy_s(struct key *);
static void rxrpc_describe_s(const struct key *, struct seq_file *);

/*
 * rxrpc server keys take "<serviceId>:<securityIndex>[:<sec-specific>]" as the
 * description and the key material as the payload.
 */
struct key_type key_type_rxrpc_s = …;

/*
 * Vet the description for an RxRPC server key.
 */
static int rxrpc_vet_description_s(const char *desc)
{ … }

/*
 * Preparse a server secret key.
 */
static int rxrpc_preparse_s(struct key_preparsed_payload *prep)
{ … }

static void rxrpc_free_preparse_s(struct key_preparsed_payload *prep)
{ … }

static void rxrpc_destroy_s(struct key *key)
{ … }

static void rxrpc_describe_s(const struct key *key, struct seq_file *m)
{ … }

/*
 * grab the security keyring for a server socket
 */
int rxrpc_server_keyring(struct rxrpc_sock *rx, sockptr_t optval, int optlen)
{ … }

/**
 * rxrpc_sock_set_security_keyring - Set the security keyring for a kernel service
 * @sk: The socket to set the keyring on
 * @keyring: The keyring to set
 *
 * Set the server security keyring on an rxrpc socket.  This is used to provide
 * the encryption keys for a kernel service.
 */
int rxrpc_sock_set_security_keyring(struct sock *sk, struct key *keyring)
{ … }
EXPORT_SYMBOL(…);