bece7b2398
Changes: This is a complete re-write of the socket layer. Making the socket implementation more aligned with the other socket layers and using more of the support functions available in sock.c. Lots of code is copied from af_unix (and some from af_irda). Non-blocking mode should be working as well. Signed-off-by: Sjur Braendeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
166 lines
4.6 KiB
C
166 lines
4.6 KiB
C
/* linux/caif_socket.h
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* CAIF Definitions for CAIF socket and network layer
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* Copyright (C) ST-Ericsson AB 2010
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* Author: Sjur Brendeland/ sjur.brandeland@stericsson.com
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* License terms: GNU General Public License (GPL) version 2
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*/
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#ifndef _LINUX_CAIF_SOCKET_H
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#define _LINUX_CAIF_SOCKET_H
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#include <linux/types.h>
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#ifdef __KERNEL__
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#include <linux/socket.h>
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#else
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#include <sys/socket.h>
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#endif
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/**
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* enum caif_link_selector - Physical Link Selection.
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* @CAIF_LINK_HIGH_BANDW: Physical interface for high-bandwidth
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* traffic.
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* @CAIF_LINK_LOW_LATENCY: Physical interface for low-latency
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* traffic.
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*
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* CAIF Link Layers can register their link properties.
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* This enum is used for choosing between CAIF Link Layers when
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* setting up CAIF Channels when multiple CAIF Link Layers exists.
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*/
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enum caif_link_selector {
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CAIF_LINK_HIGH_BANDW,
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CAIF_LINK_LOW_LATENCY
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};
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/**
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* enum caif_channel_priority - CAIF channel priorities.
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*
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* @CAIF_PRIO_MIN: Min priority for a channel.
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* @CAIF_PRIO_LOW: Low-priority channel.
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* @CAIF_PRIO_NORMAL: Normal/default priority level.
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* @CAIF_PRIO_HIGH: High priority level
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* @CAIF_PRIO_MAX: Max priority for channel
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*
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* Priority can be set on CAIF Channels in order to
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* prioritize between traffic on different CAIF Channels.
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* These priority levels are recommended, but the priority value
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* is not restricted to the values defined in this enum, any value
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* between CAIF_PRIO_MIN and CAIF_PRIO_MAX could be used.
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*/
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enum caif_channel_priority {
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CAIF_PRIO_MIN = 0x01,
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CAIF_PRIO_LOW = 0x04,
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CAIF_PRIO_NORMAL = 0x0f,
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CAIF_PRIO_HIGH = 0x14,
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CAIF_PRIO_MAX = 0x1F
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};
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/**
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* enum caif_protocol_type - CAIF Channel type.
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* @CAIFPROTO_AT: Classic AT channel.
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* @CAIFPROTO_DATAGRAM: Datagram channel.
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* @CAIFPROTO_DATAGRAM_LOOP: Datagram loopback channel, used for testing.
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* @CAIFPROTO_UTIL: Utility (Psock) channel.
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* @CAIFPROTO_RFM: Remote File Manager
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*
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* This enum defines the CAIF Channel type to be used. This defines
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* the service to connect to on the modem.
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*/
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enum caif_protocol_type {
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CAIFPROTO_AT,
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CAIFPROTO_DATAGRAM,
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CAIFPROTO_DATAGRAM_LOOP,
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CAIFPROTO_UTIL,
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CAIFPROTO_RFM,
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_CAIFPROTO_MAX
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};
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#define CAIFPROTO_MAX _CAIFPROTO_MAX
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/**
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* enum caif_at_type - AT Service Endpoint
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* @CAIF_ATTYPE_PLAIN: Connects to a plain vanilla AT channel.
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*/
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enum caif_at_type {
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CAIF_ATTYPE_PLAIN = 2
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};
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/**
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* struct sockaddr_caif - the sockaddr structure for CAIF sockets.
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* @family: Address family number, must be AF_CAIF.
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* @u: Union of address data 'switched' by family.
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* :
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* @u.at: Applies when family = CAIFPROTO_AT.
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*
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* @u.at.type: Type of AT link to set up (enum caif_at_type).
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*
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* @u.util: Applies when family = CAIFPROTO_UTIL
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*
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* @u.util.service: Utility service name.
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*
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* @u.dgm: Applies when family = CAIFPROTO_DATAGRAM
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*
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* @u.dgm.connection_id: Datagram connection id.
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*
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* @u.dgm.nsapi: NSAPI of the PDP-Context.
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*
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* @u.rfm: Applies when family = CAIFPROTO_RFM
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*
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* @u.rfm.connection_id: Connection ID for RFM.
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*
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* @u.rfm.volume: Volume to mount.
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*
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* Description:
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* This structure holds the connect parameters used for setting up a
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* CAIF Channel. It defines the service to connect to on the modem.
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*/
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struct sockaddr_caif {
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sa_family_t family;
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union {
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struct {
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__u8 type; /* type: enum caif_at_type */
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} at; /* CAIFPROTO_AT */
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struct {
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char service[16];
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} util; /* CAIFPROTO_UTIL */
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union {
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__u32 connection_id;
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__u8 nsapi;
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} dgm; /* CAIFPROTO_DATAGRAM(_LOOP)*/
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struct {
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__u32 connection_id;
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char volume[16];
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} rfm; /* CAIFPROTO_RFM */
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} u;
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};
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/**
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* enum caif_socket_opts - CAIF option values for getsockopt and setsockopt.
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*
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* @CAIFSO_LINK_SELECT: Selector used if multiple CAIF Link layers are
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* available. Either a high bandwidth
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* link can be selected (CAIF_LINK_HIGH_BANDW) or
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* or a low latency link (CAIF_LINK_LOW_LATENCY).
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* This option is of type __u32.
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* Alternatively SO_BINDTODEVICE can be used.
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*
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* @CAIFSO_REQ_PARAM: Used to set the request parameters for a
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* utility channel. (maximum 256 bytes). This
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* option must be set before connecting.
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*
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* @CAIFSO_RSP_PARAM: Gets the response parameters for a utility
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* channel. (maximum 256 bytes). This option
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* is valid after a successful connect.
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*
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*
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* This enum defines the CAIF Socket options to be used on a socket
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* of type PF_CAIF.
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*
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*/
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enum caif_socket_opts {
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CAIFSO_LINK_SELECT = 127,
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CAIFSO_REQ_PARAM = 128,
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CAIFSO_RSP_PARAM = 129,
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};
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#endif /* _LINUX_CAIF_SOCKET_H */
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