Re: [PATCH] ipv6: notify userspace when we added or changed an ipv6 token

2014-10-26 Thread Lubomir Rintel
On Mon, 2014-10-13 at 11:46 +0200, Daniel Borkmann wrote:
> On 10/10/2014 04:08 PM, Lubomir Rintel wrote:
> > NetworkManager might want to know that it changed when the router 
> > advertisement
> > arrives.
> >
> > Signed-off-by: Lubomir Rintel 
> > Cc: Hannes Frederic Sowa 
> > Cc: Daniel Borkmann 
> > ---
> >   net/ipv6/addrconf.c | 1 +
> >   1 file changed, 1 insertion(+)
> >
> > diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
> > index 3e118df..3d11390 100644
> > --- a/net/ipv6/addrconf.c
> > +++ b/net/ipv6/addrconf.c
> > @@ -4528,6 +4528,7 @@ static int inet6_set_iftoken(struct inet6_dev *idev, 
> > struct in6_addr *token)
> > }
> >
> > write_unlock_bh(>lock);
> > +   netdev_state_change(dev);
> 
> I'm wondering why netdev_state_change()? You are probably
> only after the netlink notification that is being invoked,
> i.e. rtmsg_ifinfo(RTM_NEWLINK, ...), and don't strictly want
> to call the device notifier chain.

Correct. I'll change it to just rtmsg_ifinfo().

> Perhaps it might be better to define a new RTM_SETTOKEN, and
> just call inet6_ifinfo_notify(RTM_SETTOKEN, idev) as this is
> only idev specific anyway?

I'm not really sure as that would require more userspace changes than
necessary.

> > addrconf_verify_rtnl();
> > return 0;
> >   }
> >


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Re: [PATCH] ipv6: notify userspace when we added or changed an ipv6 token

2014-10-26 Thread Lubomir Rintel
On Mon, 2014-10-13 at 11:46 +0200, Daniel Borkmann wrote:
 On 10/10/2014 04:08 PM, Lubomir Rintel wrote:
  NetworkManager might want to know that it changed when the router 
  advertisement
  arrives.
 
  Signed-off-by: Lubomir Rintel lkund...@v3.sk
  Cc: Hannes Frederic Sowa han...@stressinduktion.org
  Cc: Daniel Borkmann dbork...@redhat.com
  ---
net/ipv6/addrconf.c | 1 +
1 file changed, 1 insertion(+)
 
  diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
  index 3e118df..3d11390 100644
  --- a/net/ipv6/addrconf.c
  +++ b/net/ipv6/addrconf.c
  @@ -4528,6 +4528,7 @@ static int inet6_set_iftoken(struct inet6_dev *idev, 
  struct in6_addr *token)
  }
 
  write_unlock_bh(idev-lock);
  +   netdev_state_change(dev);
 
 I'm wondering why netdev_state_change()? You are probably
 only after the netlink notification that is being invoked,
 i.e. rtmsg_ifinfo(RTM_NEWLINK, ...), and don't strictly want
 to call the device notifier chain.

Correct. I'll change it to just rtmsg_ifinfo().

 Perhaps it might be better to define a new RTM_SETTOKEN, and
 just call inet6_ifinfo_notify(RTM_SETTOKEN, idev) as this is
 only idev specific anyway?

I'm not really sure as that would require more userspace changes than
necessary.

  addrconf_verify_rtnl();
  return 0;
}
 


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Re: [PATCH] ipv6: notify userspace when we added or changed an ipv6 token

2014-10-13 Thread Daniel Borkmann

On 10/10/2014 04:08 PM, Lubomir Rintel wrote:

NetworkManager might want to know that it changed when the router advertisement
arrives.

Signed-off-by: Lubomir Rintel 
Cc: Hannes Frederic Sowa 
Cc: Daniel Borkmann 
---
  net/ipv6/addrconf.c | 1 +
  1 file changed, 1 insertion(+)

diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 3e118df..3d11390 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -4528,6 +4528,7 @@ static int inet6_set_iftoken(struct inet6_dev *idev, 
struct in6_addr *token)
}

write_unlock_bh(>lock);
+   netdev_state_change(dev);


I'm wondering why netdev_state_change()? You are probably
only after the netlink notification that is being invoked,
i.e. rtmsg_ifinfo(RTM_NEWLINK, ...), and don't strictly want
to call the device notifier chain.

Perhaps it might be better to define a new RTM_SETTOKEN, and
just call inet6_ifinfo_notify(RTM_SETTOKEN, idev) as this is
only idev specific anyway?


addrconf_verify_rtnl();
return 0;
  }


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Re: [PATCH] ipv6: notify userspace when we added or changed an ipv6 token

2014-10-13 Thread Daniel Borkmann

On 10/10/2014 04:08 PM, Lubomir Rintel wrote:

NetworkManager might want to know that it changed when the router advertisement
arrives.

Signed-off-by: Lubomir Rintel lkund...@v3.sk
Cc: Hannes Frederic Sowa han...@stressinduktion.org
Cc: Daniel Borkmann dbork...@redhat.com
---
  net/ipv6/addrconf.c | 1 +
  1 file changed, 1 insertion(+)

diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 3e118df..3d11390 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -4528,6 +4528,7 @@ static int inet6_set_iftoken(struct inet6_dev *idev, 
struct in6_addr *token)
}

write_unlock_bh(idev-lock);
+   netdev_state_change(dev);


I'm wondering why netdev_state_change()? You are probably
only after the netlink notification that is being invoked,
i.e. rtmsg_ifinfo(RTM_NEWLINK, ...), and don't strictly want
to call the device notifier chain.

Perhaps it might be better to define a new RTM_SETTOKEN, and
just call inet6_ifinfo_notify(RTM_SETTOKEN, idev) as this is
only idev specific anyway?


addrconf_verify_rtnl();
return 0;
  }


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