if ksocket is connected to an interface-type node somewhere later
in the graph (e.g., ng_eiface or ng_iface), the csum_data may be
applied to a wrong packet (if we encapsulate Ethernet or IP).
MFC after: 3 days
- Run send queue down to completion, not just one packet.
It has been observed to cause a stall queue otherwise.
- Prevent queueing multiple function calls to a node.
MFC after: 3 days
by NGM_PPPOE_SETMODE message. When D-Link compat mode is on, we will
broadcast PADI with empty Service-Name to all listening hooks.
o Rewrite the compatibility options. Before we had two modes - standard
and non-standard (aka 3Com). Now we have standard mode and two compat
flags, that can be combined.
o Be consistent and do s/STUPID/3COM/g. I don't say that 3Com mode isn't
stupid, just want to make code easier to read.
PPPoE AC, servicing a specific Service-Name, when client sends a PADI
with an empty Service-Name. Should it reply with all available service
names or should it be silent? Our implementation had chosen the latter,
while some other had chosen the former (they say Linux and Cisco). Now
some PPPoE clients appear, that rely on the assumption that AC will
send all names in a PADO reply to a PADI with wildcard Service-Name.
These clients can't connect to FreeBSD AC.
I have requested comments from authors of RFC2516 via email, but
received no reply.
This change makes FreeBSD AC compatible with D-Link DI-614+ and
D-Link DI-624+ SOHO routers, and probably others.
Big thanks to D-Link's Russian office, namely Victor Platov, for
assistance and support in investigation and testing of this change.
Details:
o Split pppoe_match_svc() into three different functions serving
different purposes:
- pppoe_match_svc() - match non-empty Service-Name tag from PADI
against all available hooks in listening state.
- pppoe_find_svc() - check that given Service-Name is not yet
registered.
- pppoe_broadcast_padi() - send a copy of PADI packet with empty
Service-Name tag to all listening hooks.
o For NGM_PPPOE_LISTEN message use pppoe_find_svc().
o In ng_pppoe_rcvdata() in a PADI case use pppoe_match_svc() for
a non-empty Service-Name tag, and pppoe_broadcast_padi() in
either case.
A side effect from the above changes is that now pppoed(8) and mpd
will reply to a empty Service-Name PADI sending a PADO with two
Service-Name tags - an empty one and correct one. This is not fatal,
and will be corrected in pppoed(8) and mpd later. No need to update
node interface version.
Supported by: D-Link
in flags. When sending export datagram from expiry thread, then
use default zero flags. This removes unpleasant contention of the
interrupt thread on mutexes (usually ng_ksocket's socket buffer
mutex).
had been replied, the reply was always delivered to the originator
synchronously.
With introduction of netgraph item callbacks and a wait channel with
mutex in ng_socket(4), we have fixed the problem with ngctl(8) returning
earlier than the command has been proceeded by target node. But still
ngctl(8) can return prior to the reply has arrived to its node.
To fix this:
- Introduce a new flag for netgraph(4) messages - NGM_HASREPLY.
This flag is or'ed with message like NGM_READONLY.
- In netgraph userland library if we have sent a message with
NGM_HASREPLY flag, then select(2) until reply comes.
- Mark appropriate generic commands with NGM_HASREPLY flag,
gathering them into one enum {}. Bump generic cookie.
rather than in ifindex_table[]; all (except one) accesses are
through ifp anyway. IF_LLADDR() works faster, and all (except
one) ifaddr_byindex() users were converted to use ifp->if_addr.
- Stop storing a (pointer to) Ethernet address in "struct arpcom",
and drop the IFP2ENADDR() macro; all users have been converted
to use IF_LLADDR() instead.
a synchronous reprogramming of hardware MAC filters if the physical
interface are up and running. Previously, MAC filters would be
reconfigured only when the fec interface was brought up.
- Disallow bundle reconfiguration when virtual
interface is running; otherwise, removing a
port from a running configuration will cause
a panic in the start() method on the next packet
on an assumption that a bundle has an even
number of ports (2 or 4).
- Disallow bringing of virtual interface to a
running state when a bundle size is 0; otherwise,
adding and then removing the port will similarly
cause a panic.
- Add missing initialization of fec_ifstat when
adding a new port and fix media status reporting
when virtual interface isn't yet up (check for
fec_status of 1 rather than != 0).
previously, ifp->if_type was set to IFT_ETHER by
ether_ifattach(), now it's done by if_alloc() so
an assignment of if_type to IFT_PROPVIRTUAL after
if_alloc() but before ether_ifattach() broke it.
This makes arp(8) and friends happy about the fec
interfaces, and will allow us to use if_setlladdr()
on the fec interface.
- Set/reset IFF_DRV_RUNNING/IFF_DRV_OACTIVE in init()
and stop() methods rather than in ioctl(), like the
rest of the drivers do. This fixes a bug when an
"ifconfig fec0 ipv4_address" would not have made
the interface running, didn't launch the ticker
function to track media status of bundled ports,
etc.
destruction:
- Backout 1.62, since it doesn't fix all possible
problems.
- Upon node creation, put an additional reference on node.
- Add a mutex and refcounter to struct ngsock. Netgraph node,
control socket and data socket all count as references.
- Introduce ng_socket_free_priv() which removes one reference
from ngsock, and frees it when all references has gone.
- No direct pointers between pcbs and node, all pointing
is done via struct ngsock and protected with mutex.
- Introduce ng_topo_mtx, a mutex to protect topology changes.
- In ng_destroy_node() protect with ng_topo_mtx the process
of checking and pointing at ng_deadnode. [1]
- In ng_con_part2() check that our peer is not a ng_deadnode,
and protect the check with ng_topo_mtx.
- Add KASSERTs to ng_acquire_read/write, to make more
understandible synopsis in case if called on ng_deadnode.
Reported by: Roselyn Lee [1]
- Introduce a new flags NGQF_QREADER and NGQF_QWRITER,
which tell how the item should be actually applied,
overriding NGQF_READER/NGQF_WRITER flags.
- Do not differ between pending reader or writer. Use only
one flag that is raised, when there are pending items.
- Schedule netgraph ISR in ng_queue_rw(), so that callers
do not need to do this job.
- Fix several comments.
Submitted by: julian
- Prefer '_' to ' ', as it results in more easily parsed results in
memory monitoring tools such as vmstat.
- Remove punctuation that is incompatible with using memory type names
as file names, such as '/' characters.
- Disambiguate some collisions by adding subsystem prefixes to some
memory types.
- Generally prefer lower case to upper case.
- If the same type is defined in multiple architecture directories,
attempt to use the same name in additional cases.
Not all instances were caught in this change, so more work is required to
finish this conversion. Similar changes are required for UMA zone names.
following the protocol pru_listen() call to solisten_proto(), so
that it occurs under the socket lock acquisition that also sets
SO_ACCEPTCONN. This requires passing the new backlog parameter
to the protocol, which also allows the protocol to be aware of
changes in queue limit should it wish to do something about the
new queue limit. This continues a move towards the socket layer
acting as a library for the protocol.
Bump __FreeBSD_version due to a change in the in-kernel protocol
interface. This change has been tested with IPv4 and UNIX domain
sockets, but not other protocols.
