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ipmr: Make vif fib notifiers common

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The fib-notifiers are tightly coupled with the vif_device which is
already common. Move the notifier struct definition and helpers to the
common file; Currently they're only used by ipmr.

Signed-off-by: Yuval Mintz <yuvalm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Yuval Mintz 2018-03-26 15:01:31 +03:00 committed by David S. Miller
parent 02a21de90c
commit bc67a0daf8
3 changed files with 58 additions and 34 deletions
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8
include/linux/mroute.h
View File

@ -55,14 +55,6 @@ static inline bool ipmr_rule_default(const struct fib_rule *rule)
}
#endif
struct vif_entry_notifier_info {
struct fib_notifier_info info;
struct net_device *dev;
vifi_t vif_index;
unsigned short vif_flags;
u32 tb_id;
};
#define VIFF_STATIC 0x8000
struct mfc_cache_cmp_arg {

53
include/linux/mroute_base.h
View File

@ -6,6 +6,7 @@
#include <linux/spinlock.h>
#include <net/net_namespace.h>
#include <net/sock.h>
#include <net/fib_notifier.h>
/**
* struct vif_device - interface representor for multicast routing
@ -36,6 +37,58 @@ struct vif_device {
__be32 local, remote;
};
struct vif_entry_notifier_info {
struct fib_notifier_info info;
struct net_device *dev;
unsigned short vif_index;
unsigned short vif_flags;
u32 tb_id;
};
static inline int mr_call_vif_notifier(struct notifier_block *nb,
struct net *net,
unsigned short family,
enum fib_event_type event_type,
struct vif_device *vif,
unsigned short vif_index, u32 tb_id)
{
struct vif_entry_notifier_info info = {
.info = {
.family = family,
.net = net,
},
.dev = vif->dev,
.vif_index = vif_index,
.vif_flags = vif->flags,
.tb_id = tb_id,
};
return call_fib_notifier(nb, net, event_type, &info.info);
}
static inline int mr_call_vif_notifiers(struct net *net,
unsigned short family,
enum fib_event_type event_type,
struct vif_device *vif,
unsigned short vif_index, u32 tb_id,
unsigned int *ipmr_seq)
{
struct vif_entry_notifier_info info = {
.info = {
.family = family,
.net = net,
},
.dev = vif->dev,
.vif_index = vif_index,
.vif_flags = vif->flags,
.tb_id = tb_id,
};
ASSERT_RTNL();
(*ipmr_seq)++;
return call_fib_notifiers(net, event_type, &info.info);
}
#ifndef MAXVIFS
/* This one is nasty; value is defined in uapi using different symbols for
* mroute and morute6 but both map into same 32.

31
net/ipv4/ipmr.c
View File

@ -650,18 +650,8 @@ static int call_ipmr_vif_entry_notifier(struct notifier_block *nb,
struct vif_device *vif,
vifi_t vif_index, u32 tb_id)
{
struct vif_entry_notifier_info info = {
.info = {
.family = RTNL_FAMILY_IPMR,
.net = net,
},
.dev = vif->dev,
.vif_index = vif_index,
.vif_flags = vif->flags,
.tb_id = tb_id,
};
return call_fib_notifier(nb, net, event_type, &info.info);
return mr_call_vif_notifier(nb, net, RTNL_FAMILY_IPMR, event_type,
vif, vif_index, tb_id);
}
static int call_ipmr_vif_entry_notifiers(struct net *net,
@ -669,20 +659,9 @@ static int call_ipmr_vif_entry_notifiers(struct net *net,
struct vif_device *vif,
vifi_t vif_index, u32 tb_id)
{
struct vif_entry_notifier_info info = {
.info = {
.family = RTNL_FAMILY_IPMR,
.net = net,
},
.dev = vif->dev,
.vif_index = vif_index,
.vif_flags = vif->flags,
.tb_id = tb_id,
};
ASSERT_RTNL();
net->ipv4.ipmr_seq++;
return call_fib_notifiers(net, event_type, &info.info);
return mr_call_vif_notifiers(net, RTNL_FAMILY_IPMR, event_type,
vif, vif_index, tb_id,
&net->ipv4.ipmr_seq);
}
static int call_ipmr_mfc_entry_notifier(struct notifier_block *nb,