projects / mirror_ubuntu-artful-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 9995a32b RDC |
1 | /* |
| 2 | * File: pep.h | |
| 3 | * | |
| 4 | * Phonet Pipe End Point sockets definitions | |
| 5 | * | |
| 6 | * Copyright (C) 2008 Nokia Corporation. | |
| 7 | * | |
| 8 | * This program is free software; you can redistribute it and/or | |
| 9 | * modify it under the terms of the GNU General Public License | |
| 10 | * version 2 as published by the Free Software Foundation. | |
| 11 | * | |
| 12 | * This program is distributed in the hope that it will be useful, but | |
| 13 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 15 | * General Public License for more details. | |
| 16 | * | |
| 17 | * You should have received a copy of the GNU General Public License | |
| 18 | * along with this program; if not, write to the Free Software | |
| 19 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA | |
| 20 | * 02110-1301 USA | |
| 21 | */ | |
| 22 | ||
| 23 | #ifndef NET_PHONET_PEP_H | |
| 24 | #define NET_PHONET_PEP_H | |
| 25 | ||
| 26 | struct pep_sock { | |
| 27 | struct pn_sock pn_sk; | |
| 28 | ||
| 9641458d | 29 | /* XXX: union-ify listening vs connected stuff ? */ |
| 9995a32b | 30 | /* Listening socket stuff: */ |
| 9641458d | 31 | struct hlist_head hlist; |
| 9995a32b RDC |
32 | |
| 33 | /* Connected socket stuff: */ | |
| 9641458d | 34 | struct sock *listener; |
| c41bd97f RDC |
35 | struct sk_buff_head ctrlreq_queue; |
| 36 | #define PNPIPE_CTRLREQ_MAX 10 | |
| be677730 | 37 | atomic_t tx_credits; |
| 02a47617 | 38 | int ifindex; |
| 9641458d RDC |
39 | u16 peer_type; /* peer type/subtype */ |
| 40 | u8 pipe_handle; | |
| 41 | ||
| 42 | u8 rx_credits; | |
| 9641458d RDC |
43 | u8 rx_fc; /* RX flow control */ |
| 44 | u8 tx_fc; /* TX flow control */ | |
| 45 | u8 init_enable; /* auto-enable at creation */ | |
| fea93ece | 46 | u8 aligned; |
| 9995a32b RDC |
47 | }; |
| 48 | ||
| 49 | static inline struct pep_sock *pep_sk(struct sock *sk) | |
| 50 | { | |
| 51 | return (struct pep_sock *)sk; | |
| 52 | } | |
| 53 | ||
| 54 | extern const struct proto_ops phonet_stream_ops; | |
| 55 | ||
| 9641458d RDC |
56 | /* Pipe protocol definitions */ |
| 57 | struct pnpipehdr { | |
| 58 | u8 utid; /* transaction ID */ | |
| 59 | u8 message_id; | |
| 60 | u8 pipe_handle; | |
| 61 | union { | |
| 62 | u8 state_after_connect; /* connect request */ | |
| 63 | u8 state_after_reset; /* reset request */ | |
| 64 | u8 error_code; /* any response */ | |
| 65 | u8 pep_type; /* status indication */ | |
| 66 | u8 data[1]; | |
| 67 | }; | |
| 68 | }; | |
| 69 | #define other_pep_type data[1] | |
| 70 | ||
| 71 | static inline struct pnpipehdr *pnp_hdr(struct sk_buff *skb) | |
| 72 | { | |
| 73 | return (struct pnpipehdr *)skb_transport_header(skb); | |
| 74 | } | |
| 75 | ||
| 76 | #define MAX_PNPIPE_HEADER (MAX_PHONET_HEADER + 4) | |
| 77 | ||
| 78 | enum { | |
| 6482f554 RDC |
79 | PNS_PIPE_CREATE_REQ = 0x00, |
| 80 | PNS_PIPE_CREATE_RESP, | |
| 81 | PNS_PIPE_REMOVE_REQ, | |
| 82 | PNS_PIPE_REMOVE_RESP, | |
| 83 | ||
| 9641458d | 84 | PNS_PIPE_DATA = 0x20, |
| fc6a1107 | 85 | PNS_PIPE_ALIGNED_DATA, |
| 9641458d RDC |
86 | |
| 87 | PNS_PEP_CONNECT_REQ = 0x40, | |
| 88 | PNS_PEP_CONNECT_RESP, | |
| 89 | PNS_PEP_DISCONNECT_REQ, | |
| 90 | PNS_PEP_DISCONNECT_RESP, | |
| 91 | PNS_PEP_RESET_REQ, | |
| 92 | PNS_PEP_RESET_RESP, | |
| 93 | PNS_PEP_ENABLE_REQ, | |
| 94 | PNS_PEP_ENABLE_RESP, | |
| 95 | PNS_PEP_CTRL_REQ, | |
| 96 | PNS_PEP_CTRL_RESP, | |
| 97 | PNS_PEP_DISABLE_REQ = 0x4C, | |
| 98 | PNS_PEP_DISABLE_RESP, | |
| 99 | ||
| 100 | PNS_PEP_STATUS_IND = 0x60, | |
| 101 | PNS_PIPE_CREATED_IND, | |
| 102 | PNS_PIPE_RESET_IND = 0x63, | |
| 103 | PNS_PIPE_ENABLED_IND, | |
| 104 | PNS_PIPE_REDIRECTED_IND, | |
| 105 | PNS_PIPE_DISABLED_IND = 0x66, | |
| 106 | }; | |
| 107 | ||
| 108 | #define PN_PIPE_INVALID_HANDLE 0xff | |
| 109 | #define PN_PEP_TYPE_COMMON 0x00 | |
| 110 | ||
| 111 | /* Phonet pipe status indication */ | |
| 112 | enum { | |
| 113 | PN_PEP_IND_FLOW_CONTROL, | |
| 114 | PN_PEP_IND_ID_MCFC_GRANT_CREDITS, | |
| 115 | }; | |
| 116 | ||
| 117 | /* Phonet pipe error codes */ | |
| 118 | enum { | |
| 119 | PN_PIPE_NO_ERROR, | |
| 120 | PN_PIPE_ERR_INVALID_PARAM, | |
| 121 | PN_PIPE_ERR_INVALID_HANDLE, | |
| 122 | PN_PIPE_ERR_INVALID_CTRL_ID, | |
| 123 | PN_PIPE_ERR_NOT_ALLOWED, | |
| 124 | PN_PIPE_ERR_PEP_IN_USE, | |
| 125 | PN_PIPE_ERR_OVERLOAD, | |
| 126 | PN_PIPE_ERR_DEV_DISCONNECTED, | |
| 127 | PN_PIPE_ERR_TIMEOUT, | |
| 128 | PN_PIPE_ERR_ALL_PIPES_IN_USE, | |
| 129 | PN_PIPE_ERR_GENERAL, | |
| 130 | PN_PIPE_ERR_NOT_SUPPORTED, | |
| 131 | }; | |
| 132 | ||
| 133 | /* Phonet pipe states */ | |
| 134 | enum { | |
| 135 | PN_PIPE_DISABLE, | |
| 136 | PN_PIPE_ENABLE, | |
| 137 | }; | |
| 138 | ||
| 139 | /* Phonet pipe sub-block types */ | |
| 140 | enum { | |
| 141 | PN_PIPE_SB_CREATE_REQ_PEP_SUB_TYPE, | |
| 142 | PN_PIPE_SB_CONNECT_REQ_PEP_SUB_TYPE, | |
| 143 | PN_PIPE_SB_REDIRECT_REQ_PEP_SUB_TYPE, | |
| 144 | PN_PIPE_SB_NEGOTIATED_FC, | |
| 145 | PN_PIPE_SB_REQUIRED_FC_TX, | |
| 146 | PN_PIPE_SB_PREFERRED_FC_RX, | |
| fea93ece | 147 | PN_PIPE_SB_ALIGNED_DATA, |
| 9641458d RDC |
148 | }; |
| 149 | ||
| 150 | /* Phonet pipe flow control models */ | |
| 151 | enum { | |
| 152 | PN_NO_FLOW_CONTROL, | |
| 153 | PN_LEGACY_FLOW_CONTROL, | |
| 154 | PN_ONE_CREDIT_FLOW_CONTROL, | |
| 155 | PN_MULTI_CREDIT_FLOW_CONTROL, | |
| 8f44fcc7 | 156 | PN_MAX_FLOW_CONTROL, |
| 9641458d RDC |
157 | }; |
| 158 | ||
| 159 | #define pn_flow_safe(fc) ((fc) >> 1) | |
| 160 | ||
| 161 | /* Phonet pipe flow control states */ | |
| 162 | enum { | |
| 163 | PEP_IND_EMPTY, | |
| 164 | PEP_IND_BUSY, | |
| 165 | PEP_IND_READY, | |
| 166 | }; | |
| 167 | ||
| 9995a32b | 168 | #endif |