Issue #3126 has been updated by sepherosa.
This is wrong. You should move the change to bpf_output_dispatch().
And before calling if_input, make sure to clear the M_HASH on the
duplicated mbuf's m_flags.
On Sat, Mar 31, 2018 at 8:13 AM,
<bugtracker-ad...@leaf.dragonflybsd.org> wrote:
> Issue #3126 has been reported by tuxillo.
>
> ----------------------------------------
> Submit #3126: Bring in BIOC{S,G}FEEDBACK
> http://bugs.dragonflybsd.org/issues/3126
>
> * Author: tuxillo
> * Status: New
> * Priority: Normal
> * Assignee:
> * Category:
> * Target version:
> ----------------------------------------
> Hi,
>
> The port net/vde2 uses a ioctl command BIOCFEEDBACK for FreeBSD to allow
> host-guest communication in a vde switch. The attached patch is the initial
> attempt to bring that ioctl command from NetBSD.
> It compiles but it's untested until I figure out how to test it.
>
> I'd need some pointers though:
>
> - Is it okay to use directly ifp->if_input directly? Isn't there a mechanism
> similar to the one used in bpfwrite() -> bpf_output_dispatch but for input?
> - If it's okay to use ifp->if_input directly, wouldn't it need some locking?
>
> Cheers,
> Antonio Huete
>
> ---Files--------------------------------
> bpf_biocfeedback.patch (3.28 KB)
>
>
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--
Tomorrow Will Never Die
----------------------------------------
Submit #3126: Bring in BIOC{S,G}FEEDBACK
http://bugs.dragonflybsd.org/issues/3126#change-13395
* Author: tuxillo
* Status: New
* Priority: Normal
* Assignee:
* Category:
* Target version:
----------------------------------------
Hi,
The port net/vde2 uses a ioctl command BIOCFEEDBACK for FreeBSD to allow
host-guest communication in a vde switch. The attached patch is the initial
attempt to bring that ioctl command from NetBSD.
It compiles but it's untested until I figure out how to test it.
I'd need some pointers though:
- Is it okay to use directly ifp->if_input directly? Isn't there a mechanism
similar to the one used in bpfwrite() -> bpf_output_dispatch but for input?
- If it's okay to use ifp->if_input directly, wouldn't it need some locking?
Cheers,
Antonio Huete
---Files--------------------------------
bpf_biocfeedback.patch (3.28 KB)
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