881d966b48
This patch makes most of the generic device layer network namespace safe. This patch makes dev_base_head a network namespace variable, and then it picks up a few associated variables. The functions: dev_getbyhwaddr dev_getfirsthwbytype dev_get_by_flags dev_get_by_name __dev_get_by_name dev_get_by_index __dev_get_by_index dev_ioctl dev_ethtool dev_load wireless_process_ioctl were modified to take a network namespace argument, and deal with it. vlan_ioctl_set and brioctl_set were modified so their hooks will receive a network namespace argument. So basically anthing in the core of the network stack that was affected to by the change of dev_base was modified to handle multiple network namespaces. The rest of the network stack was simply modified to explicitly use &init_net the initial network namespace. This can be fixed when those components of the network stack are modified to handle multiple network namespaces. For now the ifindex generator is left global. Fundametally ifindex numbers are per namespace, or else we will have corner case problems with migration when we get that far. At the same time there are assumptions in the network stack that the ifindex of a network device won't change. Making the ifindex number global seems a good compromise until the network stack can cope with ifindex changes when you change namespaces, and the like. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
115 lines
2.6 KiB
C
115 lines
2.6 KiB
C
/*
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* Linux ethernet bridge
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*
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* Authors:
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* Lennert Buytenhek <buytenh@gnu.org>
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*
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* $Id: if_bridge.h,v 1.1 2000/02/18 16:47:01 davem Exp $
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#ifndef _LINUX_IF_BRIDGE_H
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#define _LINUX_IF_BRIDGE_H
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#include <linux/types.h>
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#define SYSFS_BRIDGE_ATTR "bridge"
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#define SYSFS_BRIDGE_FDB "brforward"
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#define SYSFS_BRIDGE_PORT_SUBDIR "brif"
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#define SYSFS_BRIDGE_PORT_ATTR "brport"
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#define SYSFS_BRIDGE_PORT_LINK "bridge"
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#define BRCTL_VERSION 1
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#define BRCTL_GET_VERSION 0
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#define BRCTL_GET_BRIDGES 1
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#define BRCTL_ADD_BRIDGE 2
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#define BRCTL_DEL_BRIDGE 3
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#define BRCTL_ADD_IF 4
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#define BRCTL_DEL_IF 5
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#define BRCTL_GET_BRIDGE_INFO 6
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#define BRCTL_GET_PORT_LIST 7
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#define BRCTL_SET_BRIDGE_FORWARD_DELAY 8
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#define BRCTL_SET_BRIDGE_HELLO_TIME 9
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#define BRCTL_SET_BRIDGE_MAX_AGE 10
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#define BRCTL_SET_AGEING_TIME 11
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#define BRCTL_SET_GC_INTERVAL 12
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#define BRCTL_GET_PORT_INFO 13
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#define BRCTL_SET_BRIDGE_STP_STATE 14
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#define BRCTL_SET_BRIDGE_PRIORITY 15
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#define BRCTL_SET_PORT_PRIORITY 16
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#define BRCTL_SET_PATH_COST 17
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#define BRCTL_GET_FDB_ENTRIES 18
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#define BR_STATE_DISABLED 0
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#define BR_STATE_LISTENING 1
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#define BR_STATE_LEARNING 2
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#define BR_STATE_FORWARDING 3
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#define BR_STATE_BLOCKING 4
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struct __bridge_info
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{
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__u64 designated_root;
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__u64 bridge_id;
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__u32 root_path_cost;
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__u32 max_age;
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__u32 hello_time;
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__u32 forward_delay;
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__u32 bridge_max_age;
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__u32 bridge_hello_time;
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__u32 bridge_forward_delay;
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__u8 topology_change;
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__u8 topology_change_detected;
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__u8 root_port;
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__u8 stp_enabled;
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__u32 ageing_time;
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__u32 gc_interval;
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__u32 hello_timer_value;
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__u32 tcn_timer_value;
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__u32 topology_change_timer_value;
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__u32 gc_timer_value;
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};
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struct __port_info
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{
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__u64 designated_root;
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__u64 designated_bridge;
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__u16 port_id;
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__u16 designated_port;
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__u32 path_cost;
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__u32 designated_cost;
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__u8 state;
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__u8 top_change_ack;
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__u8 config_pending;
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__u8 unused0;
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__u32 message_age_timer_value;
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__u32 forward_delay_timer_value;
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__u32 hold_timer_value;
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};
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struct __fdb_entry
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{
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__u8 mac_addr[6];
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__u8 port_no;
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__u8 is_local;
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__u32 ageing_timer_value;
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__u32 unused;
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};
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#ifdef __KERNEL__
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#include <linux/netdevice.h>
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extern void brioctl_set(int (*ioctl_hook)(struct net *, unsigned int, void __user *));
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extern struct sk_buff *(*br_handle_frame_hook)(struct net_bridge_port *p,
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struct sk_buff *skb);
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extern int (*br_should_route_hook)(struct sk_buff **pskb);
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#endif
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#endif
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