This change partially resolves the issue in the PR. Further architectural
fixes, in the form of reference counting, are needed.
PR: 86848
Reviewed by: yar
MFC after: 1 month
of just dropping the lock around the ip_output call. This used to cause
corrupted state tree walks for some call-paths.
In a second stage all callouts will be marked MPSAFE according to the
setting of mpsafenet.
Reported and tested by: Matthew Grooms <mgrooms at seton dot org>
MFC after: 3 days
X-MFC after: Marking callouts MPSAFE + 1 week
struct ifnet or the layer 2 common structure it was embedded in have
been replaced with a struct ifnet pointer to be filled by a call to the
new function, if_alloc(). The layer 2 common structure is also allocated
via if_alloc() based on the interface type. It is hung off the new
struct ifnet member, if_l2com.
This change removes the size of these structures from the kernel ABI and
will allow us to better manage them as interfaces come and go.
Other changes of note:
- Struct arpcom is no longer referenced in normal interface code.
Instead the Ethernet address is accessed via the IFP2ENADDR() macro.
To enforce this ac_enaddr has been renamed to _ac_enaddr.
- The second argument to ether_ifattach is now always the mac address
from driver private storage rather than sometimes being ac_enaddr.
Reviewed by: sobomax, sam
missing and will be implemented in a second step. This is functional as is.
Tested by: freebsd-pf, pfsense.org
Obtained from: OpenBSD
X-MFC after: never (breaks API/ABI)
Version 3.5 brings:
- Atomic commits of ruleset changes (reduce the chance of ending up in an
inconsistent state).
- A 30% reduction in the size of state table entries.
- Source-tracking (limit number of clients and states per client).
- Sticky-address (the flexibility of round-robin with the benefits of
source-hash).
- Significant improvements to interface handling.
- and many more ...
Also set HOOK_HACK to true (remove the related #ifdef's) as we have the
hooks in the kernel this was missed during the merge from the port.
Noticed by: Amir S. (for the HOOK_HACK part)
Approved by: bms(mentor)
for a long time and is run in production use. This is the code present in
portversion 2.03 with some additional tweaks.
The rather extensive diff accounts for:
- locking (to enable pf to work with a giant-free netstack)
- byte order difference between OpenBSD and FreeBSD for ip_len/ip_off
- conversion from pool(9) to zone(9)
- api differences etc.
Approved by: bms(mentor) (in general)
