| /* |
| * File: pep.h |
| * |
| * Phonet Pipe End Point sockets definitions |
| * |
| * Copyright (C) 2008 Nokia Corporation. |
| * |
| * 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 |
| */ |
| |
| #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 ackq; |
| 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 data[1]; |
| }; |
| }; |
| #define other_pep_type data[1] |
| |
| 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, |
| }; |
| |
| #define pn_flow_safe(fc) ((fc) >> 1) |
| |
| /* Phonet pipe flow control states */ |
| enum { |
| PEP_IND_EMPTY, |
| PEP_IND_BUSY, |
| PEP_IND_READY, |
| }; |
| |
| #ifdef CONFIG_PHONET_PIPECTRLR |
| #define PNS_PEP_CONNECT_UTID 0x02 |
| #define PNS_PIPE_CREATED_IND_UTID 0x04 |
| #define PNS_PIPE_ENABLE_UTID 0x0A |
| #define PNS_PIPE_ENABLED_IND_UTID 0x0C |
| #define PNS_PIPE_DISABLE_UTID 0x0F |
| #define PNS_PIPE_DISABLED_IND_UTID 0x11 |
| #define PNS_PEP_DISCONNECT_UTID 0x06 |
| |
| #endif /* CONFIG_PHONET_PIPECTRLR */ |
| |
| #endif |