41057ebde0
rxrpc-type keys can have multiple tokens attached for different security classes. Currently, rxrpc always picks the first one, whether or not the security class it indicates is supported. Add preliminary support for choosing which security class will be used (this will need to be directed from a higher layer) and go through the tokens to find one that's supported. Signed-off-by: David Howells <dhowells@redhat.com>
98 lines
2.2 KiB
C
98 lines
2.2 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/* Null security operations.
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*
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* Copyright (C) 2016 Red Hat, Inc. All Rights Reserved.
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* Written by David Howells (dhowells@redhat.com)
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*/
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#include <net/af_rxrpc.h>
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#include "ar-internal.h"
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static int none_init_connection_security(struct rxrpc_connection *conn,
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struct rxrpc_key_token *token)
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{
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return 0;
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}
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static int none_prime_packet_security(struct rxrpc_connection *conn)
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{
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return 0;
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}
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static int none_secure_packet(struct rxrpc_call *call,
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struct sk_buff *skb,
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size_t data_size,
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void *sechdr)
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{
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return 0;
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}
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static int none_verify_packet(struct rxrpc_call *call, struct sk_buff *skb,
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unsigned int offset, unsigned int len,
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rxrpc_seq_t seq, u16 expected_cksum)
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{
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return 0;
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}
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static void none_free_call_crypto(struct rxrpc_call *call)
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{
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}
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static void none_locate_data(struct rxrpc_call *call, struct sk_buff *skb,
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unsigned int *_offset, unsigned int *_len)
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{
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}
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static int none_respond_to_challenge(struct rxrpc_connection *conn,
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struct sk_buff *skb,
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u32 *_abort_code)
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{
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struct rxrpc_skb_priv *sp = rxrpc_skb(skb);
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trace_rxrpc_rx_eproto(NULL, sp->hdr.serial,
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tracepoint_string("chall_none"));
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return -EPROTO;
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}
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static int none_verify_response(struct rxrpc_connection *conn,
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struct sk_buff *skb,
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u32 *_abort_code)
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{
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struct rxrpc_skb_priv *sp = rxrpc_skb(skb);
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trace_rxrpc_rx_eproto(NULL, sp->hdr.serial,
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tracepoint_string("resp_none"));
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return -EPROTO;
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}
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static void none_clear(struct rxrpc_connection *conn)
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{
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}
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static int none_init(void)
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{
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return 0;
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}
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static void none_exit(void)
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{
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}
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/*
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* RxRPC Kerberos-based security
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*/
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const struct rxrpc_security rxrpc_no_security = {
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.name = "none",
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.security_index = RXRPC_SECURITY_NONE,
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.init = none_init,
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.exit = none_exit,
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.init_connection_security = none_init_connection_security,
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.prime_packet_security = none_prime_packet_security,
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.free_call_crypto = none_free_call_crypto,
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.secure_packet = none_secure_packet,
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.verify_packet = none_verify_packet,
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.locate_data = none_locate_data,
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.respond_to_challenge = none_respond_to_challenge,
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.verify_response = none_verify_response,
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.clear = none_clear,
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};
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