1 files changed, 0 insertions, 264 deletions
diff --git a/net/rxrpc/ar-security.c b/net/rxrpc/ar-security.c
deleted file mode 100644
index 49b3cc31ee1f..000000000000
--- a/net/rxrpc/ar-security.c
+++ /dev/null
@@ -1,264 +0,0 @@
-/* RxRPC security handling
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * 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/net.h>
-#include <linux/skbuff.h>
-#include <linux/udp.h>
-#include <linux/crypto.h>
-#include <net/sock.h>
-#include <net/af_rxrpc.h>
-#include <keys/rxrpc-type.h>
-#include "ar-internal.h"
-
-static LIST_HEAD(rxrpc_security_methods);
-static DECLARE_RWSEM(rxrpc_security_sem);
-
-/*
- * get an RxRPC security module
- */
-static struct rxrpc_security *rxrpc_security_get(struct rxrpc_security *sec)
-{
-	return try_module_get(sec->owner) ? sec : NULL;
-}
-
-/*
- * release an RxRPC security module
- */
-static void rxrpc_security_put(struct rxrpc_security *sec)
-{
-	module_put(sec->owner);
-}
-
-/*
- * look up an rxrpc security module
- */
-static struct rxrpc_security *rxrpc_security_lookup(u8 security_index)
-{
-	struct rxrpc_security *sec = NULL;
-
-	_enter("");
-
-	down_read(&rxrpc_security_sem);
-
-	list_for_each_entry(sec, &rxrpc_security_methods, link) {
-		if (sec->security_index == security_index) {
-			if (unlikely(!rxrpc_security_get(sec)))
-				break;
-			goto out;
-		}
-	}
-
-	sec = NULL;
-out:
-	up_read(&rxrpc_security_sem);
-	_leave(" = %p [%s]", sec, sec ? sec->name : "");
-	return sec;
-}
-
-/**
- * rxrpc_register_security - register an RxRPC security handler
- * @sec: security module
- *
- * register an RxRPC security handler for use by RxRPC
- */
-int rxrpc_register_security(struct rxrpc_security *sec)
-{
-	struct rxrpc_security *psec;
-	int ret;
-
-	_enter("");
-	down_write(&rxrpc_security_sem);
-
-	ret = -EEXIST;
-	list_for_each_entry(psec, &rxrpc_security_methods, link) {
-		if (psec->security_index == sec->security_index)
-			goto out;
-	}
-
-	list_add(&sec->link, &rxrpc_security_methods);
-
-	printk(KERN_NOTICE "RxRPC: Registered security type %d '%s'\n",
-	       sec->security_index, sec->name);
-	ret = 0;
-
-out:
-	up_write(&rxrpc_security_sem);
-	_leave(" = %d", ret);
-	return ret;
-}
-
-EXPORT_SYMBOL_GPL(rxrpc_register_security);
-
-/**
- * rxrpc_unregister_security - unregister an RxRPC security handler
- * @sec: security module
- *
- * unregister an RxRPC security handler
- */
-void rxrpc_unregister_security(struct rxrpc_security *sec)
-{
-
-	_enter("");
-	down_write(&rxrpc_security_sem);
-	list_del_init(&sec->link);
-	up_write(&rxrpc_security_sem);
-
-	printk(KERN_NOTICE "RxRPC: Unregistered security type %d '%s'\n",
-	       sec->security_index, sec->name);
-}
-
-EXPORT_SYMBOL_GPL(rxrpc_unregister_security);
-
-/*
- * initialise the security on a client connection
- */
-int rxrpc_init_client_conn_security(struct rxrpc_connection *conn)
-{
-	struct rxrpc_key_token *token;
-	struct rxrpc_security *sec;
-	struct key *key = conn->key;
-	int ret;
-
-	_enter("{%d},{%x}", conn->debug_id, key_serial(key));
-
-	if (!key)
-		return 0;
-
-	ret = key_validate(key);
-	if (ret < 0)
-		return ret;
-
-	if (!key->payload.data)
-		return -EKEYREJECTED;
-	token = key->payload.data;
-
-	sec = rxrpc_security_lookup(token->security_index);
-	if (!sec)
-		return -EKEYREJECTED;
-	conn->security = sec;
-
-	ret = conn->security->init_connection_security(conn);
-	if (ret < 0) {
-		rxrpc_security_put(conn->security);
-		conn->security = NULL;
-		return ret;
-	}
-
-	_leave(" = 0");
-	return 0;
-}
-
-/*
- * initialise the security on a server connection
- */
-int rxrpc_init_server_conn_security(struct rxrpc_connection *conn)
-{
-	struct rxrpc_security *sec;
-	struct rxrpc_local *local = conn->trans->local;
-	struct rxrpc_sock *rx;
-	struct key *key;
-	key_ref_t kref;
-	char kdesc[5+1+3+1];
-
-	_enter("");
-
-	sprintf(kdesc, "%u:%u", ntohs(conn->service_id), conn->security_ix);
-
-	sec = rxrpc_security_lookup(conn->security_ix);
-	if (!sec) {
-		_leave(" = -ENOKEY [lookup]");
-		return -ENOKEY;
-	}
-
-	/* find the service */
-	read_lock_bh(&local->services_lock);
-	list_for_each_entry(rx, &local->services, listen_link) {
-		if (rx->service_id == conn->service_id)
-			goto found_service;
-	}
-
-	/* the service appears to have died */
-	read_unlock_bh(&local->services_lock);
-	rxrpc_security_put(sec);
-	_leave(" = -ENOENT");
-	return -ENOENT;
-
-found_service:
-	if (!rx->securities) {
-		read_unlock_bh(&local->services_lock);
-		rxrpc_security_put(sec);
-		_leave(" = -ENOKEY");
-		return -ENOKEY;
-	}
-
-	/* look through the service's keyring */
-	kref = keyring_search(make_key_ref(rx->securities, 1UL),
-			      &key_type_rxrpc_s, kdesc);
-	if (IS_ERR(kref)) {
-		read_unlock_bh(&local->services_lock);
-		rxrpc_security_put(sec);
-		_leave(" = %ld [search]", PTR_ERR(kref));
-		return PTR_ERR(kref);
-	}
-
-	key = key_ref_to_ptr(kref);
-	read_unlock_bh(&local->services_lock);
-
-	conn->server_key = key;
-	conn->security = sec;
-
-	_leave(" = 0");
-	return 0;
-}
-
-/*
- * secure a packet prior to transmission
- */
-int rxrpc_secure_packet(const struct rxrpc_call *call,
-			struct sk_buff *skb,
-			size_t data_size,
-			void *sechdr)
-{
-	if (call->conn->security)
-		return call->conn->security->secure_packet(
-			call, skb, data_size, sechdr);
-	return 0;
-}
-
-/*
- * secure a packet prior to transmission
- */
-int rxrpc_verify_packet(const struct rxrpc_call *call, struct sk_buff *skb,
-			u32 *_abort_code)
-{
-	if (call->conn->security)
-		return call->conn->security->verify_packet(
-			call, skb, _abort_code);
-	return 0;
-}
-
-/*
- * clear connection security
- */
-void rxrpc_clear_conn_security(struct rxrpc_connection *conn)
-{
-	_enter("{%d}", conn->debug_id);
-
-	if (conn->security) {
-		conn->security->clear(conn);
-		rxrpc_security_put(conn->security);
-		conn->security = NULL;
-	}
-
-	key_put(conn->key);
-	key_put(conn->server_key);
-}