mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
156 lines
3.2 KiB
156 lines
3.2 KiB
/* SPDX-License-Identifier: GPL-2.0-only */ |
|
/* |
|
* File: pep.h |
|
* |
|
* Phonet Pipe End Point sockets definitions |
|
* |
|
* Copyright (C) 2008 Nokia Corporation. |
|
*/ |
|
|
|
#ifndef NET_PHONET_PEP_H |
|
#define NET_PHONET_PEP_H |
|
|
|
struct pep_sock { |
|
struct pn_sock pn_sk; |
|
|
|
/* XXX: union-ify listening vs connected stuff ? */ |
|
/* Listening socket stuff: */ |
|
struct hlist_head hlist; |
|
|
|
/* Connected socket stuff: */ |
|
struct sock *listener; |
|
struct sk_buff_head ctrlreq_queue; |
|
#define PNPIPE_CTRLREQ_MAX 10 |
|
atomic_t tx_credits; |
|
int ifindex; |
|
u16 peer_type; /* peer type/subtype */ |
|
u8 pipe_handle; |
|
|
|
u8 rx_credits; |
|
u8 rx_fc; /* RX flow control */ |
|
u8 tx_fc; /* TX flow control */ |
|
u8 init_enable; /* auto-enable at creation */ |
|
u8 aligned; |
|
}; |
|
|
|
static inline struct pep_sock *pep_sk(struct sock *sk) |
|
{ |
|
return (struct pep_sock *)sk; |
|
} |
|
|
|
extern const struct proto_ops phonet_stream_ops; |
|
|
|
/* Pipe protocol definitions */ |
|
struct pnpipehdr { |
|
u8 utid; /* transaction ID */ |
|
u8 message_id; |
|
u8 pipe_handle; |
|
union { |
|
u8 state_after_connect; /* connect request */ |
|
u8 state_after_reset; /* reset request */ |
|
u8 error_code; /* any response */ |
|
u8 pep_type; /* status indication */ |
|
u8 data0; /* anything else */ |
|
}; |
|
u8 data[]; |
|
}; |
|
#define other_pep_type data[0] |
|
|
|
static inline struct pnpipehdr *pnp_hdr(struct sk_buff *skb) |
|
{ |
|
return (struct pnpipehdr *)skb_transport_header(skb); |
|
} |
|
|
|
#define MAX_PNPIPE_HEADER (MAX_PHONET_HEADER + 4) |
|
|
|
enum { |
|
PNS_PIPE_CREATE_REQ = 0x00, |
|
PNS_PIPE_CREATE_RESP, |
|
PNS_PIPE_REMOVE_REQ, |
|
PNS_PIPE_REMOVE_RESP, |
|
|
|
PNS_PIPE_DATA = 0x20, |
|
PNS_PIPE_ALIGNED_DATA, |
|
|
|
PNS_PEP_CONNECT_REQ = 0x40, |
|
PNS_PEP_CONNECT_RESP, |
|
PNS_PEP_DISCONNECT_REQ, |
|
PNS_PEP_DISCONNECT_RESP, |
|
PNS_PEP_RESET_REQ, |
|
PNS_PEP_RESET_RESP, |
|
PNS_PEP_ENABLE_REQ, |
|
PNS_PEP_ENABLE_RESP, |
|
PNS_PEP_CTRL_REQ, |
|
PNS_PEP_CTRL_RESP, |
|
PNS_PEP_DISABLE_REQ = 0x4C, |
|
PNS_PEP_DISABLE_RESP, |
|
|
|
PNS_PEP_STATUS_IND = 0x60, |
|
PNS_PIPE_CREATED_IND, |
|
PNS_PIPE_RESET_IND = 0x63, |
|
PNS_PIPE_ENABLED_IND, |
|
PNS_PIPE_REDIRECTED_IND, |
|
PNS_PIPE_DISABLED_IND = 0x66, |
|
}; |
|
|
|
#define PN_PIPE_INVALID_HANDLE 0xff |
|
#define PN_PEP_TYPE_COMMON 0x00 |
|
|
|
/* Phonet pipe status indication */ |
|
enum { |
|
PN_PEP_IND_FLOW_CONTROL, |
|
PN_PEP_IND_ID_MCFC_GRANT_CREDITS, |
|
}; |
|
|
|
/* Phonet pipe error codes */ |
|
enum { |
|
PN_PIPE_NO_ERROR, |
|
PN_PIPE_ERR_INVALID_PARAM, |
|
PN_PIPE_ERR_INVALID_HANDLE, |
|
PN_PIPE_ERR_INVALID_CTRL_ID, |
|
PN_PIPE_ERR_NOT_ALLOWED, |
|
PN_PIPE_ERR_PEP_IN_USE, |
|
PN_PIPE_ERR_OVERLOAD, |
|
PN_PIPE_ERR_DEV_DISCONNECTED, |
|
PN_PIPE_ERR_TIMEOUT, |
|
PN_PIPE_ERR_ALL_PIPES_IN_USE, |
|
PN_PIPE_ERR_GENERAL, |
|
PN_PIPE_ERR_NOT_SUPPORTED, |
|
}; |
|
|
|
/* Phonet pipe states */ |
|
enum { |
|
PN_PIPE_DISABLE, |
|
PN_PIPE_ENABLE, |
|
}; |
|
|
|
/* Phonet pipe sub-block types */ |
|
enum { |
|
PN_PIPE_SB_CREATE_REQ_PEP_SUB_TYPE, |
|
PN_PIPE_SB_CONNECT_REQ_PEP_SUB_TYPE, |
|
PN_PIPE_SB_REDIRECT_REQ_PEP_SUB_TYPE, |
|
PN_PIPE_SB_NEGOTIATED_FC, |
|
PN_PIPE_SB_REQUIRED_FC_TX, |
|
PN_PIPE_SB_PREFERRED_FC_RX, |
|
PN_PIPE_SB_ALIGNED_DATA, |
|
}; |
|
|
|
/* Phonet pipe flow control models */ |
|
enum { |
|
PN_NO_FLOW_CONTROL, |
|
PN_LEGACY_FLOW_CONTROL, |
|
PN_ONE_CREDIT_FLOW_CONTROL, |
|
PN_MULTI_CREDIT_FLOW_CONTROL, |
|
PN_MAX_FLOW_CONTROL, |
|
}; |
|
|
|
#define pn_flow_safe(fc) ((fc) >> 1) |
|
|
|
/* Phonet pipe flow control states */ |
|
enum { |
|
PEP_IND_EMPTY, |
|
PEP_IND_BUSY, |
|
PEP_IND_READY, |
|
}; |
|
|
|
#endif
|
|
|