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Constify mbuf pointer for IPSEC functions where mbuf isn't modified.
TAG: IPSEC-HEAD
(cherry picked from commit 9570d79d4a30dcd428dd55f2f996c1090c777c52)
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Remove now unused mtag argument from ipsec*_common_input_cb.
Obtained from: Yandex LLC
Sponsored by: Yandex LLC
TAG: IPSEC-HEAD
Issue: #4841
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Remove unused declartations.
MFC r275437:
ANSIfy function declarations.
MFC r275438:
Remove __P() macro.
Sponsored by: Yandex LLC
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IPv4-in-IPv6 and IPv6-in-IPv4 IPsec tunnels.
For IPv6-in-IPv4, you may need to do the following command
on the tunnel interface if it is configured as IPv4 only:
ifconfig <interface> inet6 -ifdisabled
Code logic inspired from NetBSD.
PR: kern/169438
MC r266822 by bz:
Use IPv4 statistics in ipsec4_process_packet() rather than the IPv6
version. This also unbreaks the NOINET6 builds after r266800.
MFC r268083 by zec:
The assumption in ipsec4_process_packet() that the payload may be
only IPv4 is wrong, so check the IP version before mangling the
payload header.
MFC r272394:
Do not strip outer header when operating in transport mode.
Instead requeue mbuf back to IPv4 protocol handler. If there is one extra IP-IP
encapsulation, it will be handled with tunneling interface. And thus proper
interface will be exposed into mbuf's rcvif. Also, tcpdump that listens on tunneling
interface will see packets in both directions.
PR: 194761
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ipsec4stat, ipsec6stat to PCPU counters.
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accounting.
MFC after: 2 weeks
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"Whitspace" churn after the VIMAGE/VNET whirls.
Remove the need for some "init" functions within the network
stack, like pim6_init(), icmp_init() or significantly shorten
others like ip6_init() and nd6_init(), using static initialization
again where possible and formerly missed.
Move (most) variables back to the place they used to be before the
container structs and VIMAGE_GLOABLS (before r185088) and try to
reduce the diff to stable/7 and earlier as good as possible,
to help out-of-tree consumers to update from 6.x or 7.x to 8 or 9.
This also removes some header file pollution for putatively
static global variables.
Revert VIMAGE specific changes in ipfilter::ip_auth.c, that are
no longer needed.
Reviewed by: jhb
Discussed with: rwatson
Sponsored by: The FreeBSD Foundation
Sponsored by: CK Software GmbH
MFC after: 6 days
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ever actually used. Rename VNET_GET() to VNET() to shorten
variable references.
Discussed with: bz, julian
Reviewed by: bz
Approved by: re (kensmith, kib)
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(DPCPU), as suggested by Peter Wemm, and implement a new per-virtual
network stack memory allocator. Modify vnet to use the allocator
instead of monolithic global container structures (vinet, ...). This
change solves many binary compatibility problems associated with
VIMAGE, and restores ELF symbols for virtualized global variables.
Each virtualized global variable exists as a "reference copy", and also
once per virtual network stack. Virtualized global variables are
tagged at compile-time, placing the in a special linker set, which is
loaded into a contiguous region of kernel memory. Virtualized global
variables in the base kernel are linked as normal, but those in modules
are copied and relocated to a reserved portion of the kernel's vnet
region with the help of a the kernel linker.
Virtualized global variables exist in per-vnet memory set up when the
network stack instance is created, and are initialized statically from
the reference copy. Run-time access occurs via an accessor macro, which
converts from the current vnet and requested symbol to a per-vnet
address. When "options VIMAGE" is not compiled into the kernel, normal
global ELF symbols will be used instead and indirection is avoided.
This change restores static initialization for network stack global
variables, restores support for non-global symbols and types, eliminates
the need for many subsystem constructors, eliminates large per-subsystem
structures that caused many binary compatibility issues both for
monitoring applications (netstat) and kernel modules, removes the
per-function INIT_VNET_*() macros throughout the stack, eliminates the
need for vnet_symmap ksym(2) munging, and eliminates duplicate
definitions of virtualized globals under VIMAGE_GLOBALS.
Bump __FreeBSD_version and update UPDATING.
Portions submitted by: bz
Reviewed by: bz, zec
Discussed with: gnn, jamie, jeff, jhb, julian, sam
Suggested by: peter
Approved by: re (kensmith)
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kernel option.
This also permits tuning of the option per virtual network stack, as
well as separately per inet, inet6.
The kernel option is left for a transition period, marked deprecated,
and will be removed soon.
Initially requested by: phk (1 year 1 day ago)
MFC after: 4 weeks
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(duplicate) code in sys/netipsec/ipsec.c and fold it into
common, INET/6 independent functions.
The file local functions ipsec4_setspidx_inpcb() and
ipsec6_setspidx_inpcb() were 1:1 identical after the change
in r186528. Rename to ipsec_setspidx_inpcb() and remove the
duplicate.
Public functions ipsec[46]_get_policy() were 1:1 identical.
Remove one copy and merge in the factored out code from
ipsec_get_policy() into the other. The public function left
is now called ipsec_get_policy() and callers were adapted.
Public functions ipsec[46]_set_policy() were 1:1 identical.
Rename file local ipsec_set_policy() function to
ipsec_set_policy_internal().
Remove one copy of the public functions, rename the other
to ipsec_set_policy() and adapt callers.
Public functions ipsec[46]_hdrsiz() were logically identical
(ignoring one questionable assert in the v6 version).
Rename the file local ipsec_hdrsiz() to ipsec_hdrsiz_internal(),
the public function to ipsec_hdrsiz(), remove the duplicate
copy and adapt the callers.
The v6 version had been unused anyway. Cleanup comments.
Public functions ipsec[46]_in_reject() were logically identical
apart from statistics. Move the common code into a file local
ipsec46_in_reject() leaving vimage+statistics in small AF specific
wrapper functions. Note: unfortunately we already have a public
ipsec_in_reject().
Reviewed by: sam
Discussed with: rwatson (renaming to *_internal)
MFC after: 26 days
X-MFC: keep wrapper functions for public symbols?
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Ignoring different names because of macros (in6pcb, in6p_sp) and
inp vs. in6p variable name both functions were entirely identical.
Reviewed by: rwatson (as part of a larger changeset)
MFC after: 6 weeks (*)
(*) possibly need to leave a stub wrappers in 7 to keep the symbols.
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related to ip4_esp_randpad.
Reviewed by: gnn, bz (older version)
Approved by: gnn
Tested with: make universe
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ipsec*_set_policy and do the privilege check only if needed.
Try to assimilate both ip*_ctloutput code blocks calling ipsec*_set_policy.
Reviewed by: rwatson
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This commit includes only the kernel files, the rest of the files
will follow in a second commit.
Reviewed by: bz
Approved by: re
Supported by: Secure Computing
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from the KAME IPsec implementation, but with heavy borrowing and influence
of openbsd. A key feature of this implementation is that it uses the kernel
crypto framework to do all crypto work so when h/w crypto support is present
IPsec operation is automatically accelerated. Otherwise the protocol
implementations are rather differet while the SADB and policy management
code is very similar to KAME (for the moment).
Note that this implementation is enabled with a FAST_IPSEC option. With this
you get all protocols; i.e. there is no FAST_IPSEC_ESP option.
FAST_IPSEC and IPSEC are mutually exclusive; you cannot build both into a
single system.
This software is well tested with IPv4 but should be considered very
experimental (i.e. do not deploy in production environments). This software
does NOT currently support IPv6. In fact do not configure FAST_IPSEC and
INET6 in the same system.
Obtained from: KAME + openbsd
Supported by: Vernier Networks
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