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Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 51 franklin st fifth floor boston ma 02110 1301 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 246 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190530000436.674189849@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
157 lines
3.2 KiB
C
157 lines
3.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* File: pep.h
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*
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* Phonet Pipe End Point sockets definitions
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*
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* Copyright (C) 2008 Nokia Corporation.
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*/
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#ifndef NET_PHONET_PEP_H
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#define NET_PHONET_PEP_H
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struct pep_sock {
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struct pn_sock pn_sk;
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/* XXX: union-ify listening vs connected stuff ? */
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/* Listening socket stuff: */
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struct hlist_head hlist;
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/* Connected socket stuff: */
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struct sock *listener;
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struct sk_buff_head ctrlreq_queue;
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#define PNPIPE_CTRLREQ_MAX 10
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atomic_t tx_credits;
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int ifindex;
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u16 peer_type; /* peer type/subtype */
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u8 pipe_handle;
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u8 rx_credits;
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u8 rx_fc; /* RX flow control */
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u8 tx_fc; /* TX flow control */
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u8 init_enable; /* auto-enable at creation */
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u8 aligned;
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};
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static inline struct pep_sock *pep_sk(struct sock *sk)
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{
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return (struct pep_sock *)sk;
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}
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extern const struct proto_ops phonet_stream_ops;
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/* Pipe protocol definitions */
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struct pnpipehdr {
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u8 utid; /* transaction ID */
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u8 message_id;
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u8 pipe_handle;
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union {
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u8 state_after_connect; /* connect request */
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u8 state_after_reset; /* reset request */
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u8 error_code; /* any response */
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u8 pep_type; /* status indication */
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u8 data0; /* anything else */
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};
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u8 data[];
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};
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#define other_pep_type data[0]
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static inline struct pnpipehdr *pnp_hdr(struct sk_buff *skb)
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{
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return (struct pnpipehdr *)skb_transport_header(skb);
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}
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#define MAX_PNPIPE_HEADER (MAX_PHONET_HEADER + 4)
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enum {
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PNS_PIPE_CREATE_REQ = 0x00,
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PNS_PIPE_CREATE_RESP,
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PNS_PIPE_REMOVE_REQ,
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PNS_PIPE_REMOVE_RESP,
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PNS_PIPE_DATA = 0x20,
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PNS_PIPE_ALIGNED_DATA,
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PNS_PEP_CONNECT_REQ = 0x40,
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PNS_PEP_CONNECT_RESP,
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PNS_PEP_DISCONNECT_REQ,
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PNS_PEP_DISCONNECT_RESP,
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PNS_PEP_RESET_REQ,
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PNS_PEP_RESET_RESP,
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PNS_PEP_ENABLE_REQ,
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PNS_PEP_ENABLE_RESP,
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PNS_PEP_CTRL_REQ,
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PNS_PEP_CTRL_RESP,
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PNS_PEP_DISABLE_REQ = 0x4C,
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PNS_PEP_DISABLE_RESP,
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PNS_PEP_STATUS_IND = 0x60,
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PNS_PIPE_CREATED_IND,
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PNS_PIPE_RESET_IND = 0x63,
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PNS_PIPE_ENABLED_IND,
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PNS_PIPE_REDIRECTED_IND,
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PNS_PIPE_DISABLED_IND = 0x66,
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};
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#define PN_PIPE_INVALID_HANDLE 0xff
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#define PN_PEP_TYPE_COMMON 0x00
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/* Phonet pipe status indication */
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enum {
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PN_PEP_IND_FLOW_CONTROL,
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PN_PEP_IND_ID_MCFC_GRANT_CREDITS,
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};
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/* Phonet pipe error codes */
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enum {
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PN_PIPE_NO_ERROR,
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PN_PIPE_ERR_INVALID_PARAM,
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PN_PIPE_ERR_INVALID_HANDLE,
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PN_PIPE_ERR_INVALID_CTRL_ID,
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PN_PIPE_ERR_NOT_ALLOWED,
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PN_PIPE_ERR_PEP_IN_USE,
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PN_PIPE_ERR_OVERLOAD,
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PN_PIPE_ERR_DEV_DISCONNECTED,
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PN_PIPE_ERR_TIMEOUT,
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PN_PIPE_ERR_ALL_PIPES_IN_USE,
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PN_PIPE_ERR_GENERAL,
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PN_PIPE_ERR_NOT_SUPPORTED,
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};
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/* Phonet pipe states */
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enum {
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PN_PIPE_DISABLE,
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PN_PIPE_ENABLE,
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};
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/* Phonet pipe sub-block types */
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enum {
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PN_PIPE_SB_CREATE_REQ_PEP_SUB_TYPE,
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PN_PIPE_SB_CONNECT_REQ_PEP_SUB_TYPE,
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PN_PIPE_SB_REDIRECT_REQ_PEP_SUB_TYPE,
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PN_PIPE_SB_NEGOTIATED_FC,
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PN_PIPE_SB_REQUIRED_FC_TX,
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PN_PIPE_SB_PREFERRED_FC_RX,
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PN_PIPE_SB_ALIGNED_DATA,
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};
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/* Phonet pipe flow control models */
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enum {
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PN_NO_FLOW_CONTROL,
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PN_LEGACY_FLOW_CONTROL,
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PN_ONE_CREDIT_FLOW_CONTROL,
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PN_MULTI_CREDIT_FLOW_CONTROL,
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PN_MAX_FLOW_CONTROL,
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};
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#define pn_flow_safe(fc) ((fc) >> 1)
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/* Phonet pipe flow control states */
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enum {
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PEP_IND_EMPTY,
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PEP_IND_BUSY,
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PEP_IND_READY,
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};
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#endif
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