Commit Graph

3624 Commits

Author SHA1 Message Date
Kevin Lo
c3bef61e58 Remove the 4.3BSD compatible macro m_copy(), use m_copym() instead.
Reviewed by:	gnn
Differential Revision:	https://reviews.freebsd.org/D7878
2016-09-15 07:41:48 +00:00
Sepherosa Ziehau
b349357819 hyperv/hn: Stringent RNDIS packet message length/offset check.
While I'm here, use definition in net/rndis.h

MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D7782
2016-09-06 03:20:06 +00:00
Sepherosa Ziehau
a8197ee35e net/rndis: Define RNDIS status message, which could be sent by device.
MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D7757
2016-09-05 04:56:56 +00:00
Sepherosa Ziehau
772b86ba12 net/rndis: Define common message header for RNDIS messages.
And avoid RNDIS_HEADER_OFFSET hardcoding.

Reviewed by:	hps
MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D7739
2016-09-02 05:57:13 +00:00
Sepherosa Ziehau
178228a10e net/rndis: Add comment for rndis_comp_hdr
Reviewed by:	hps
MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D7738
2016-09-02 05:49:38 +00:00
Sepherosa Ziehau
46ebd74ce1 net/rndis: Define types for RNDIS pktinfo rm_type field.
They are defined by NDIS spec, so the NDIS prefix.

Reviewed by:	hps
MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D7717
2016-09-01 07:17:06 +00:00
Sepherosa Ziehau
f320cbed5a net/vlan: Shift for pri is 13 (pri mask 0xe000) not 1.
Reviewed by:	araujo, hps
MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D7710
2016-09-01 06:32:35 +00:00
Sepherosa Ziehau
6f67f21938 net/rndis: Define per-packet-info for RNDIS packet message
MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D7708
2016-09-01 05:40:13 +00:00
Sepherosa Ziehau
947175ca10 net/rndis: Add comment for rndis_set_parameter
MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D7705
2016-09-01 05:15:04 +00:00
Sepherosa Ziehau
1010113dad net/rndis: Packet types are defined by NDIS; not RNDIS specific.
Reviewed by:	hps
MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D7681
2016-08-30 03:11:07 +00:00
Sepherosa Ziehau
8bb1a21b56 hyperv/hn: Move OIDs to net/rndis.h; they are standard NDIS OIDs.
Actually all OIDs defined in net/rndis.h are standard NDIS OIDs.
While I'm here, use the verbose macro name as in NDIS spec.

MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D7679
2016-08-30 02:55:07 +00:00
Sepherosa Ziehau
77c4f5aa9d hyperv/hn: Use vmbus xact for RNDIS set.
And use new RNDIS set to configure NDIS offloading parameters.

MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D7641
2016-08-26 05:18:27 +00:00
Sepherosa Ziehau
cc3d96db55 hyperv/hn: Use vmbus xact for RNDIS query.
And switch MAC address query to use new RNDIS query function.

MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D7639
2016-08-26 05:12:09 +00:00
Sepherosa Ziehau
550bbdbd27 hyperv/hn: Use vmbus xact for RNDIS initialize.
MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D7624
2016-08-25 05:00:41 +00:00
Sepherosa Ziehau
6d79d63a7b net/rndis: Fix RNDIS_STATUS_PENDING definition.
While I'm here, sort the RNDIS status in ascending order.

MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D7594
2016-08-24 03:16:25 +00:00
Sepherosa Ziehau
48ef7b17f0 net/rndis: Add canonical RNDIS major/minor version as of today.
Reviewed by:	hps
MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D7593
2016-08-24 03:08:13 +00:00
Sepherosa Ziehau
1ba241d223 net: Split RNDIS protocol structs/macros out of dev/usb/net/if_urndisreg.h
So that Hyper-V can leverage them instead of rolling its own definition.

Discussed with:	hps
Reviewed by:	hps
MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D7592
2016-08-23 02:54:06 +00:00
Andrey V. Elsukov
fdf95c0b81 Teach netisr_get_cpuid() to limit a given value to supported by netisr.
Use netisr_get_cpuid() in netisr_select_cpuid() to limit cpuid value
returned by protocol to be sure that it is not greather than nws_count.

PR:		211836
Reviewed by:	adrian
MFC after:	3 days
2016-08-17 20:21:33 +00:00
Stephen Hurd
23ac9029f9 Update iflib to support more NIC designs
- Move group task queue into kern/subr_gtaskqueue.c
- Change intr_enable to return an int so it can be detected if it's not
  implemented
- Allow different TX/RX queues per set to be different sizes
- Don't split up TX mbufs before transmit
- Allow a completion queue for TX as well as RX
- Pass the RX budget to isc_rxd_available() to allow an earlier return
  and avoid multiple calls

Submitted by:	shurd
Reviewed by:	gallatin
Approved by:	scottl
Differential Revision:	https://reviews.freebsd.org/D7393
2016-08-12 21:29:44 +00:00
Adrian Chadd
eb81dc79e9 Extract out the various local definitions of ETHER_IS_BROADCAST() and
turn them into a shared definition.

Set M_MCAST/M_BCAST appropriately upon packet reception in net80211, just
before they are delivered up to the ethernet stack.

Submitted by:	rstone
2016-08-07 03:48:33 +00:00
John Baldwin
f454e7ebf5 Add __printflike() to bus_describe_intr() to enable -Wformat checks.
Fix a few places that were passing a raw string as the format to use
a "%s" format string instead.

MFC after:	2 months
2016-08-04 18:29:16 +00:00
Conrad Meyer
9809e9dc3a rtentry: Initialize rt_mtx with MTX_NEW
The "rtentry" zone does not use UMA_ZONE_ZINIT, so it is invalid to assume the
mutex's memory will be zero.  Without MTX_NEW, garbage backing memory may
trigger the "re-initializing a mutex" assertion.

PR:		200991
Submitted by:	Chang-Hsien Tsai <luke.tw AT gmail.com>
2016-08-01 23:07:31 +00:00
Konstantin Belousov
584b675ed6 Hide the boottime and bootimebin globals, provide the getboottime(9)
and getboottimebin(9) KPI. Change consumers of boottime to use the
KPI.  The variables were renamed to avoid shadowing issues with local
variables of the same name.

Issue is that boottime* should be adjusted from tc_windup(), which
requires them to be members of the timehands structure.  As a
preparation, this commit only introduces the interface.

Some uses of boottime were found doubtful, e.g. NLM uses boottime to
identify the system boot instance.  Arguably the identity should not
change on the leap second adjustment, but the commit is about the
timekeeping code and the consumers were kept bug-to-bug compatible.

Tested by:	pho (as part of the bigger patch)
Reviewed by:	jhb (same)
Discussed with:	bde
Sponsored by:	The FreeBSD Foundation
MFC after:	1 month
X-Differential revision:	https://reviews.freebsd.org/D7302
2016-07-27 11:08:59 +00:00
Gleb Smirnoff
32e0ade6c4 Partially revert r257696/r257713, which have an issue with writing to user
controlled address. Restore the old code that emulated OSIOCGIFCONF in if.c.

Noticed by:	C Turt
2016-07-24 10:10:09 +00:00
Alexander Motin
84e633724f Negotiate/disable TXCSUM_IPV6 same as TXCSUM. 2016-07-18 16:58:47 +00:00
Nathan Whitehorn
8c636a11dc Remove assumptions in MI code that the BSP is CPU 0.
MFC after:	2 weeks
2016-07-11 21:25:28 +00:00
Pedro F. Giffuni
a4bf2e2d49 ng_mppc(4):: basic readability cleanups.
In particular use __unreachable() to appease static analyzers.
No functional change.

CID:		1356591
MFC after:	3 days
2016-07-09 02:33:45 +00:00
Conrad Meyer
91d546a05d iflib: Fix typo in 'iflib_rx_miss_bufs' sysctl name
It looks like these sysctls were copy-pasted from netmap.  Most were changed
from 'ixl_' prefix to 'iflib_', but this one was missed.

Fix the "can't re-use a leaf (ixl_rx_miss_bufs)!" warning.

Reported by:	dim@ and others
Sponsored by:	EMC / Isilon Storage Division
2016-07-08 17:04:21 +00:00
Nathan Whitehorn
6415e9aafb Add variable declaration missing in r302372.
Submitted by:	andrew
Approved by:	re (gjb, kib)
2016-07-06 17:46:49 +00:00
Nathan Whitehorn
96c85efb4b Replace a number of conflations of mp_ncpus and mp_maxid with either
mp_maxid or CPU_FOREACH() as appropriate. This fixes a number of places in
the kernel that assumed CPU IDs are dense in [0, mp_ncpus) and would try,
for example, to run tasks on CPUs that did not exist or to allocate too
few buffers on systems with sparse CPU IDs in which there are holes in the
range and mp_maxid > mp_ncpus. Such circumstances generally occur on
systems with SMT, but on which SMT is disabled. This patch restores system
operation at least on POWER8 systems configured in this way.

There are a number of other places in the kernel with potential problems
in these situations, but where sparse CPU IDs are not currently known
to occur, mostly in the ARM machine-dependent code. These will be fixed
in a follow-up commit after the stable/11 branch.

PR:		kern/210106
Reviewed by:	jhb
Approved by:	re (glebius)
2016-07-06 14:09:49 +00:00
Bjoern A. Zeeb
a29c7aeb2e Several device drivers call if_alloc() and then do further checks and
will cal if_free() in case of conflict, error, ..
if_free() however sets the VNET instance from the ifp->if_vnet which
was not yet initialized but would only in if_attach(). Fix this by
setting the curvnet from where we allocate the interface in if_alloc().
if_attach() will later overwrite this as needed. We do not set the home_vnet
early on as we only want to prevent the if_free() panic but not change any
of the other housekeeping, e.g., triggered through ifioctl()s.

Reviewed by:	brooks
Approved by:	re (gjb)
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D7010
2016-06-29 05:21:25 +00:00
Bjoern A. Zeeb
a0429b5459 Update pf(4) and pflog(4) to survive basic VNET testing, which includes
proper virtualisation, teardown, avoiding use-after-free, race conditions,
no longer creating a thread per VNET (which could easily be a couple of
thousand threads), gracefully ignoring global events (e.g., eventhandlers)
on teardown, clearing various globally cached pointers and checking
them before use.

Reviewed by:		kp
Approved by:		re (gjb)
Sponsored by:		The FreeBSD Foundation
MFC after:		2 weeks
Differential Revision:	https://reviews.freebsd.org/D6924
2016-06-23 21:34:38 +00:00
Navdeep Parhar
f22bfc72f8 Add spares to struct ifnet and socket for packet pacing and/or general
use.  Update comments regarding the spare fields in struct inpcb.

Bump __FreeBSD_version for the changes to the size of the structures.

Reviewed by:	gnn@
Approved by:	re@ (gjb@)
Sponsored by:	Chelsio Communications
2016-06-23 21:07:15 +00:00
Bjoern A. Zeeb
a97c790844 Add more fields to if_debug.c for ddb(4) 'show ifnet'; resort
some fields to match the order in the struct.  Especially needed
if_pf_kif to do pf(4) VNET debugging.

Approved by:	re (marius)
Obtained from:	projects/vnet
MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
2016-06-22 12:53:10 +00:00
Bjoern A. Zeeb
d3f6f80f4b After r302054 unloading an network interface driver on a kernel
without VIMAGE support would dereference a NULL point unconditionally
leading to a panic.  Wrap the entire VIMAGE related code with #ifdefs
rather than just the decision making part to save an extra bit of
resources.

Reported by:	np
Sponsored by:	The FreeBSD Foundation
MFC After:	13 days
Approved by:	re (marius)
2016-06-22 11:45:30 +00:00
Bjoern A. Zeeb
89856f7e2d Get closer to a VIMAGE network stack teardown from top to bottom rather
than removing the network interfaces first. This change is rather larger
and convoluted as the ordering requirements cannot be separated.

Move the pfil(9) framework to SI_SUB_PROTO_PFIL, move Firewalls and
related modules to their own SI_SUB_PROTO_FIREWALL.
Move initialization of "physical" interfaces to SI_SUB_DRIVERS,
move virtual (cloned) interfaces to SI_SUB_PSEUDO.
Move Multicast to SI_SUB_PROTO_MC.

Re-work parts of multicast initialisation and teardown, not taking the
huge amount of memory into account if used as a module yet.

For interface teardown we try to do as many of them as we can on
SI_SUB_INIT_IF, but for some this makes no sense, e.g., when tunnelling
over a higher layer protocol such as IP. In that case the interface
has to go along (or before) the higher layer protocol is shutdown.

Kernel hhooks need to go last on teardown as they may be used at various
higher layers and we cannot remove them before we cleaned up the higher
layers.

For interface teardown there are multiple paths:
(a) a cloned interface is destroyed (inside a VIMAGE or in the base system),
(b) any interface is moved from a virtual network stack to a different
network stack ("vmove"), or (c) a virtual network stack is being shut down.
All code paths go through if_detach_internal() where we, depending on the
vmove flag or the vnet state, make a decision on how much to shut down;
in case we are destroying a VNET the individual protocol layers will
cleanup their own parts thus we cannot do so again for each interface as
we end up with, e.g., double-frees, destroying locks twice or acquiring
already destroyed locks.
When calling into protocol cleanups we equally have to tell them
whether they need to detach upper layer protocols ("ulp") or not
(e.g., in6_ifdetach()).

Provide or enahnce helper functions to do proper cleanup at a protocol
rather than at an interface level.

Approved by:		re (hrs)
Obtained from:		projects/vnet
Reviewed by:		gnn, jhb
Sponsored by:		The FreeBSD Foundation
MFC after:		2 weeks
Differential Revision:	https://reviews.freebsd.org/D6747
2016-06-21 13:48:49 +00:00
Kristof Provost
3e248e0fb4 pf: Filter on and set vlan PCP values
Adopt the OpenBSD syntax for setting and filtering on VLAN PCP values. This
introduces two new keywords: 'set prio' to set the PCP value, and 'prio' to
filter on it.

Reviewed by:    allanjude, araujo
Approved by:	re (gjb)
Obtained from:  OpenBSD (mostly)
Differential Revision:  https://reviews.freebsd.org/D6786
2016-06-17 18:21:55 +00:00
Conrad Meyer
0d0338afc9 iflib: Improve cleanup on iflib_queues_alloc error path
Fix some memory leaks.  Some may remain.

Reported by:	Coverity
Discussed with:	mmacy
CIDs:		1356036, 1356037, 1356038
Sponsored by:	EMC / Isilon Storage Division
2016-06-07 20:26:00 +00:00
Conrad Meyer
16fb86ab35 iflib: Fix potential leak in iflib_if_transmit
Due to an accidental mismatch between allocation and release in the slow path
of iflib_if_transmit, if a caller passed 9-16 mbufs to the routine, the mbuf
array would be leaked.

Fix the mismatch by removing the magic numbers in favor of nitems() on the
stack array.  According to mmacy, this leak is unlikely.

Reported by:	Coverity
Discussed with:	mmacy
CID:		1356040
Sponsored by:	EMC / Isilon Storage Division
2016-06-07 19:49:08 +00:00
Pedro F. Giffuni
c3fb425204 ng_mppc(4): Bring netgraph(3) MPPC compression support.
Support for compression has been available from July 2007 but it
was never imported due to concerns with patents once held by
STAC/HiFn. The issues have clearly been resolved so bring it
in now.

Special thanks to Brett Glass for preserving the code and
pointing documentation for the expiration case.

Obtained from:	mav (through Brett Glass)
Relnotes:	yes
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D6739
2016-06-07 15:07:00 +00:00
Sepherosa Ziehau
36ad8372d4 net: Use M_HASHTYPE_OPAQUE_HASH if the mbuf flowid has hash properties
Reviewed by:	hps, erj, tuexen
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D6688
2016-06-07 04:51:50 +00:00
Bjoern A. Zeeb
2d5ad99a0d After tearing down the interface per-"domain" bits, set the data area
to NULL to avoid it being mis-treated on a possible re-attach but also
to get a clean NULL pointer derefence in case of errors due to
unexpected race conditions elsewhere in the code, e.g., callouts.

Obtained from:	projects/vnet
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
2016-06-06 22:59:58 +00:00
Bjoern A. Zeeb
d117fd8003 Similarly to r301505 protect the removal of the ifa from the if_addrhead
by a lock (as well as the check that the list is not empty).

Obtained from:	projects/vnet
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
2016-06-06 16:23:02 +00:00
Bjoern A. Zeeb
f22d78c06e In if_purgeaddrs() we cannot hold the lock over the entire loop
due to called functions (as in other parts of the stack, leave a comment).
Put around a lock the removal of the ifa from the list however to
reduce the possible race with other places.

Obtained from:	projects/vnet
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
2016-06-06 13:17:25 +00:00
Bjoern A. Zeeb
b9dbac48f3 SYSINIT functions do not return a value; switch to void, remove
the return value, and mark the unused argument __unused.

Obtained from:	projects/vnet
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
2016-06-06 13:01:57 +00:00
Bjoern A. Zeeb
80ae8d609a Provide a public interface to rt_flushifroutes which takes the address
family as an argument as well.
This will be used to cleanup individual protocols during VNET teardown.

Obtained from:	projects/vnet
Sponsored by:	The FreeBSD Foundation
2016-06-06 12:49:47 +00:00
Bjoern A. Zeeb
e84ef07f02 Make the KASSERT message more helpful by also printing the ifp information
which we are asserting.

Obtained from:	projects/vnet
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
2016-06-06 10:13:48 +00:00
Marcelo Araujo
2ccbbd06d2 Add support to priority code point (PCP) that is an 3-bit field
which refers to IEEE 802.1p class of service and maps to the frame
priority level.

Values in order of priority are: 1 (Background (lowest)),
0 (Best effort (default)), 2 (Excellent effort),
3 (Critical applications), 4 (Video, < 100ms latency),
5 (Video, < 10ms latency), 6 (Internetwork control) and
7 (Network control (highest)).

Example of usage:
root# ifconfig em0.1 create
root# ifconfig em0.1 vlanpcp 3

Note:
The review D801 includes the pf(4) part, but as discussed with kristof,
we won't commit the pf(4) bits for now.
The credits of the original code is from rwatson.

Differential Revision:	https://reviews.freebsd.org/D801
Reviewed by:	gnn, adrian, loos
Discussed with: rwatson, glebius, kristof
Tested by:	many including Matthew Grooms <mgrooms__shrew.net>
Obtained from:	pfSense
Relnotes:	Yes
2016-06-06 09:51:58 +00:00
Bjoern A. Zeeb
484149def8 Introduce a per-VNET flag to enable/disable netisr prcessing on that VNET.
Add accessor functions to toggle the state per VNET.
The base system (vnet0) will always enable itself with the normal
registration. We will share the registered protocol handlers in all
VNETs minimising duplication and management.
Upon disabling netisr processing for a VNET drain the netisr queue from
packets for that VNET.

Update netisr consumers to (de)register on a per-VNET start/teardown using
VNET_SYS(UN)INIT functionality.

The change should be transparent for non-VIMAGE kernels.

Reviewed by:	gnn (, hiren)
Obtained from:	projects/vnet
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D6691
2016-06-03 13:57:10 +00:00
George V. Neville-Neil
6d76822688 This change re-adds L2 caching for TCP and UDP, as originally added in D4306
but removed due to other changes in the system. Restore the llentry pointer
to the "struct route", and use it to cache the L2 lookup (ARP or ND6) as
appropriate.

Submitted by:	Mike Karels
Differential Revision:	https://reviews.freebsd.org/D6262
2016-06-02 17:51:29 +00:00