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8e8cda6d73
This patch adds initial support for network namespaces. The changes only
enable support in the CAN raw, proc and af_can code. GW and BCM still
have their checks that ensure that they are used only from the main
namespace.
The patch boils down to moving the global structures, i.e. the global
filter list and their /proc stats, into a per-namespace structure and passing
around the corresponding "struct net" in a lot of different places.
Changes since v1:
- rebased on current HEAD (2bfe01e)
- fixed overlong line
Signed-off-by: Mario Kicherer <dev@kicherer.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
61 lines
1.8 KiB
C
61 lines
1.8 KiB
C
/*
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* linux/can/core.h
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*
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* Protoypes and definitions for CAN protocol modules using the PF_CAN core
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*
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* Authors: Oliver Hartkopp <oliver.hartkopp@volkswagen.de>
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* Urs Thuermann <urs.thuermann@volkswagen.de>
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* Copyright (c) 2002-2007 Volkswagen Group Electronic Research
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* All rights reserved.
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*
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*/
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#ifndef _CAN_CORE_H
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#define _CAN_CORE_H
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#include <linux/can.h>
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#include <linux/skbuff.h>
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#include <linux/netdevice.h>
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#define CAN_VERSION "20120528"
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/* increment this number each time you change some user-space interface */
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#define CAN_ABI_VERSION "9"
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#define CAN_VERSION_STRING "rev " CAN_VERSION " abi " CAN_ABI_VERSION
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#define DNAME(dev) ((dev) ? (dev)->name : "any")
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/**
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* struct can_proto - CAN protocol structure
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* @type: type argument in socket() syscall, e.g. SOCK_DGRAM.
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* @protocol: protocol number in socket() syscall.
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* @ops: pointer to struct proto_ops for sock->ops.
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* @prot: pointer to struct proto structure.
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*/
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struct can_proto {
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int type;
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int protocol;
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const struct proto_ops *ops;
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struct proto *prot;
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};
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/* function prototypes for the CAN networklayer core (af_can.c) */
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extern int can_proto_register(const struct can_proto *cp);
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extern void can_proto_unregister(const struct can_proto *cp);
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int can_rx_register(struct net *net, struct net_device *dev,
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canid_t can_id, canid_t mask,
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void (*func)(struct sk_buff *, void *),
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void *data, char *ident, struct sock *sk);
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extern void can_rx_unregister(struct net *net, struct net_device *dev,
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canid_t can_id, canid_t mask,
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void (*func)(struct sk_buff *, void *),
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void *data);
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extern int can_send(struct sk_buff *skb, int loop);
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extern int can_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg);
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#endif /* !_CAN_CORE_H */
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