sys/pfkeyv2.h: define extensions for ipsec inline accel control

The extensions allow to restrict interface where SP or SA are offloaded,
and to receive software and hardware offload counters for giv

sys/pfkeyv2.h: define extensions for ipsec inline accel control

The extensions allow to restrict interface where SP or SA are offloaded,
and to receive software and hardware offload counters for given SA.

Sponsored by: NVIDIA networking
Differential revision: https://reviews.freebsd.org/D44316

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libipsec: make const-correct

- add const to the appropriate places in the libipsec public API and the
relevant internal functions needed to support that.

- replace caddr_t with c_caddr_t in ipsec

libipsec: make const-correct

- add const to the appropriate places in the libipsec public API and the
relevant internal functions needed to support that.

- replace caddr_t with c_caddr_t in ipsec_dump_policy()

- update the ipsec_dump_policy manpage to use c_caddr_t (this manpage
was already wrong as it had "char *" instead of caddr_t previously).

While here, update pfkeyv2.h to not cast away const in the PFKEY_*()
macros.

This should not cause any ABI changes as the actual types have not
changed.

Reviewed by: imp
Pull Request: https://github.com/freebsd/freebsd-src/pull/1099

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sys: Remove $FreeBSD$: one-line .c comment pattern

Remove /^/[*/]\s*\$FreeBSD\$.*\n/

net/pfkeyv2.h: fix typo, meNber

Sponsored by: NVidia networking
MFC after: 3 days

ipsec: add support for CHACHA20POLY1305

Based on a patch by ae@.

Reviewed by: gbe (man page), pauamma (man page)
Sponsored by: Rubicon Communications, LLC ("Netgate")
Differential Revision: https:/

ipsec: add support for CHACHA20POLY1305

Based on a patch by ae@.

Reviewed by: gbe (man page), pauamma (man page)
Sponsored by: Rubicon Communications, LLC ("Netgate")
Differential Revision: https://reviews.freebsd.org/D37180

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Add SADB_SAFLAGS_ESN flag

This flag is going to be used by IKE daemon to signal if
Extended Sequence Number feature is going to be used.

Value for this flag was taken from OpenBSD source code
https

Add SADB_SAFLAGS_ESN flag

This flag is going to be used by IKE daemon to signal if
Extended Sequence Number feature is going to be used.

Value for this flag was taken from OpenBSD source code
https://github.com/openbsd/src/commit/6b4cbaf181c6b60701d9fb888fd0e7a4333eecbd

Submitted by: Patryk Duda <pdk@semihalf.com>
Reviewed by: ae
Differential revision: https://reviews.freebsd.org/D22366
Obtained from: Semihalf
Sponsored by: Stormshield

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Refer to AES-CBC as "aes-cbc" rather than "rijndael-cbc" for IPsec.

At this point, AES is the more common name for Rijndael128. setkey(8)
will still accept the old name, and old constants remain fo

Refer to AES-CBC as "aes-cbc" rather than "rijndael-cbc" for IPsec.

At this point, AES is the more common name for Rijndael128. setkey(8)
will still accept the old name, and old constants remain for
compatiblity.

Reviewed by: cem, bcr (manpages)
MFC after: 2 weeks
Sponsored by: Chelsio Communications
Differential Revision: https://reviews.freebsd.org/D24964

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Merge ^/head r325999 through r326131.

sys: further adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 3-Clause license.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for

sys: further adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 3-Clause license.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

Special thanks to Wind River for providing access to "The Duke of
Highlander" tool: an older (2014) run over FreeBSD tree was useful as a
starting point.

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Introduce the concept of IPsec security policies scope.

Currently are defined three scopes: global, ifnet, and pcb.
Generic security policies that IKE daemon can add via PF_KEY interface
or an admin

Introduce the concept of IPsec security policies scope.

Currently are defined three scopes: global, ifnet, and pcb.
Generic security policies that IKE daemon can add via PF_KEY interface
or an administrator creates with setkey(8) utility have GLOBAL scope.
Such policies can be applied by the kernel to outgoing packets and checked
agains inbound packets after IPsec processing.
Security policies created by if_ipsec(4) interfaces have IFNET scope.
Such policies are applied to packets that are passed through if_ipsec(4)
interface.
And security policies created by application using setsockopt()
IP_IPSEC_POLICY option have PCB scope. Such policies are applied to
packets related to specific socket. Currently there is no way to list
PCB policies via setkey(8) utility.

Modify setkey(8) and libipsec(3) to be able distinguish the scope of
security policies in the `setkey -DP` listing. Add two optional flags:
'-t' to list only policies related to virtual *tunneling* interfaces,
i.e. policies with IFNET scope, and '-g' to list only policies with GLOBAL
scope. By default policies from all scopes are listed.

To implement this PF_KEY's sadb_x_policy structure was modified.
sadb_x_policy_reserved field is used to pass the policy scope from the
kernel to userland. SADB_SPDDUMP message extended to support filtering
by scope: sadb_msg_satype field is used to specify bit mask of requested
scopes.

For IFNET policies the sadb_x_policy_priority field of struct sadb_x_policy
is used to pass if_ipsec's interface if_index to the userland. For GLOBAL
policies sadb_x_policy_priority is used only to manage order of security
policies in the SPDB. For IFNET policies it is not used, so it can be used
to keep if_index.

After this change the output of `setkey -DP` now looks like:
# setkey -DPt
0.0.0.0/0[any] 0.0.0.0/0[any] any
in ipsec
esp/tunnel/87.250.242.144-87.250.242.145/unique:145
spid=7 seq=3 pid=58025 scope=ifnet ifname=ipsec0
refcnt=1
# setkey -DPg
::/0 ::/0 icmp6 135,0
out none
spid=5 seq=1 pid=872 scope=global
refcnt=1

No objection from: #network
Obtained from: Yandex LLC
MFC after: 2 weeks
Sponsored by: Yandex LLC
Differential Revision: https://reviews.freebsd.org/D9805

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Merge ^/head r313301 through r313643.

MFhead@r313360

Merge projects/ipsec into head/.

Small summary
-------------

o Almost all IPsec releated code was moved into sys/netipsec.
o New kernel modules added: ipsec.ko and tcpmd5.ko. New kernel
option

Merge projects/ipsec into head/.

Small summary
-------------

o Almost all IPsec releated code was moved into sys/netipsec.
o New kernel modules added: ipsec.ko and tcpmd5.ko. New kernel
option IPSEC_SUPPORT added. It enables support for loading
and unloading of ipsec.ko and tcpmd5.ko kernel modules.
o IPSEC_NAT_T option was removed. Now NAT-T support is enabled by
default. The UDP_ENCAP_ESPINUDP_NON_IKE encapsulation type
support was removed. Added TCP/UDP checksum handling for
inbound packets that were decapsulated by transport mode SAs.
setkey(8) modified to show run-time NAT-T configuration of SA.
o New network pseudo interface if_ipsec(4) added. For now it is
build as part of ipsec.ko module (or with IPSEC kernel).
It implements IPsec virtual tunnels to create route-based VPNs.
o The network stack now invokes IPsec functions using special
methods. The only one header file <netipsec/ipsec_support.h>
should be included to declare all the needed things to work
with IPsec.
o All IPsec protocols handlers (ESP/AH/IPCOMP protosw) were removed.
Now these protocols are handled directly via IPsec methods.
o TCP_SIGNATURE support was reworked to be more close to RFC.
o PF_KEY SADB was reworked:
- now all security associations stored in the single SPI namespace,
and all SAs MUST have unique SPI.
- several hash tables added to speed up lookups in SADB.
- SADB now uses rmlock to protect access, and concurrent threads
can do SA lookups in the same time.
- many PF_KEY message handlers were reworked to reflect changes
in SADB.
- SADB_UPDATE message was extended to support new PF_KEY headers:
SADB_X_EXT_NEW_ADDRESS_SRC and SADB_X_EXT_NEW_ADDRESS_DST. They
can be used by IKE daemon to change SA addresses.
o ipsecrequest and secpolicy structures were cardinally changed to
avoid locking protection for ipsecrequest. Now we support
only limited number (4) of bundled SAs, but they are supported
for both INET and INET6.
o INPCB security policy cache was introduced. Each PCB now caches
used security policies to avoid SP lookup for each packet.
o For inbound security policies added the mode, when the kernel does
check for full history of applied IPsec transforms.
o References counting rules for security policies and security
associations were changed. The proper SA locking added into xform
code.
o xform code was also changed. Now it is possible to unregister xforms.
tdb_xxx structures were changed and renamed to reflect changes in
SADB/SPDB, and changed rules for locking and refcounting.

Reviewed by: gnn, wblock
Obtained from: Yandex LLC
Relnotes: yes
Sponsored by: Yandex LLC
Differential Revision: https://reviews.freebsd.org/D9352

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IPsec RFC6479 support for replay window sizes up to 2^32 - 32 packets.

Since the previous algorithm, based on bit shifting, does not scale
with large replay windows, the algorithm used here is based

IPsec RFC6479 support for replay window sizes up to 2^32 - 32 packets.

Since the previous algorithm, based on bit shifting, does not scale
with large replay windows, the algorithm used here is based on
RFC 6479: IPsec Anti-Replay Algorithm without Bit Shifting.
The replay window will be fast to be updated, but will cost as many bits
in RAM as its size.

The previous implementation did not provide a lock on the replay window,
which may lead to replay issues.

Reviewed by: ae
Obtained from: emeric.poupon@stormshield.eu
Sponsored by: Stormshield
Differential Revision: https://reviews.freebsd.org/D8468

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MFH r289384-r293170

Sponsored by: The FreeBSD Foundation

Catch up with head (r291075).

Implement the sadb_x_policy_priority field as it is done in Linux:
lower priority policies are inserted first.

Submitted by: Emeric Poupon <emeric.poupon@stormshield.eu>
Reviewed by: ae
Sponsored by

Implement the sadb_x_policy_priority field as it is done in Linux:
lower priority policies are inserted first.

Submitted by: Emeric Poupon <emeric.poupon@stormshield.eu>
Reviewed by: ae
Sponsored by: Stormshield

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Merge from head

Sponsored by: Gandi.net

Finish merging from head, messed up in previous attempt

Merge from head

Catch up with head, primarily for the 1.14.4.0 firmware.

Merge ^/head r285924 through r286421.

looks like all archs either have clang or cdefs included before..
drop this include as unnecessary..

Requested by: bde

convert to C11's _Static_assert, and pull in sys/cdefs.h for
compatibility w/ older non-C11 compilers...

passed make tinerdbox..

Suggested by: imp

temporarily fix build.. This isn't the final fix, and testing is
still on going, but it has passed world for mips and powerpc...

I know this has an extra semicolon, but this is the patch that is
te

temporarily fix build.. This isn't the final fix, and testing is
still on going, but it has passed world for mips and powerpc...

I know this has an extra semicolon, but this is the patch that is
tested...

Looks like better fix is to use _Static_assert...

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