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a25e21f0bc
In rxrpc and afs, use the debug_ids that are monotonically allocated to various objects as they're allocated rather than pointers as kernel pointers are now hashed making them less useful. Further, the debug ids aren't reused anywhere nearly as quickly. In addition, allow kernel services that use rxrpc, such as afs, to take numbers from the rxrpc counter, assign them to their own call struct and pass them in to rxrpc for both client and service calls so that the trace lines for each will have the same ID tag. Signed-off-by: David Howells <dhowells@redhat.com>
82 lines
2.9 KiB
C
82 lines
2.9 KiB
C
/* RxRPC kernel service interface definitions
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*
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* Copyright (C) 2007 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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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#ifndef _NET_RXRPC_H
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#define _NET_RXRPC_H
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#include <linux/rxrpc.h>
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struct key;
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struct sock;
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struct socket;
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struct rxrpc_call;
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/*
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* Call completion condition (state == RXRPC_CALL_COMPLETE).
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*/
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enum rxrpc_call_completion {
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RXRPC_CALL_SUCCEEDED, /* - Normal termination */
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RXRPC_CALL_REMOTELY_ABORTED, /* - call aborted by peer */
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RXRPC_CALL_LOCALLY_ABORTED, /* - call aborted locally on error or close */
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RXRPC_CALL_LOCAL_ERROR, /* - call failed due to local error */
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RXRPC_CALL_NETWORK_ERROR, /* - call terminated by network error */
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NR__RXRPC_CALL_COMPLETIONS
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};
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/*
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* Debug ID counter for tracing.
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*/
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extern atomic_t rxrpc_debug_id;
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typedef void (*rxrpc_notify_rx_t)(struct sock *, struct rxrpc_call *,
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unsigned long);
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typedef void (*rxrpc_notify_end_tx_t)(struct sock *, struct rxrpc_call *,
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unsigned long);
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typedef void (*rxrpc_notify_new_call_t)(struct sock *, struct rxrpc_call *,
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unsigned long);
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typedef void (*rxrpc_discard_new_call_t)(struct rxrpc_call *, unsigned long);
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typedef void (*rxrpc_user_attach_call_t)(struct rxrpc_call *, unsigned long);
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void rxrpc_kernel_new_call_notification(struct socket *,
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rxrpc_notify_new_call_t,
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rxrpc_discard_new_call_t);
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struct rxrpc_call *rxrpc_kernel_begin_call(struct socket *,
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struct sockaddr_rxrpc *,
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struct key *,
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unsigned long,
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s64,
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gfp_t,
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rxrpc_notify_rx_t,
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bool,
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unsigned int);
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int rxrpc_kernel_send_data(struct socket *, struct rxrpc_call *,
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struct msghdr *, size_t,
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rxrpc_notify_end_tx_t);
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int rxrpc_kernel_recv_data(struct socket *, struct rxrpc_call *,
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void *, size_t, size_t *, bool, u32 *, u16 *);
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bool rxrpc_kernel_abort_call(struct socket *, struct rxrpc_call *,
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u32, int, const char *);
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void rxrpc_kernel_end_call(struct socket *, struct rxrpc_call *);
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void rxrpc_kernel_get_peer(struct socket *, struct rxrpc_call *,
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struct sockaddr_rxrpc *);
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u64 rxrpc_kernel_get_rtt(struct socket *, struct rxrpc_call *);
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int rxrpc_kernel_charge_accept(struct socket *, rxrpc_notify_rx_t,
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rxrpc_user_attach_call_t, unsigned long, gfp_t,
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unsigned int);
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void rxrpc_kernel_set_tx_length(struct socket *, struct rxrpc_call *, s64);
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int rxrpc_kernel_retry_call(struct socket *, struct rxrpc_call *,
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struct sockaddr_rxrpc *, struct key *);
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int rxrpc_kernel_check_call(struct socket *, struct rxrpc_call *,
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enum rxrpc_call_completion *, u32 *);
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u32 rxrpc_kernel_check_life(struct socket *, struct rxrpc_call *);
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#endif /* _NET_RXRPC_H */
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