linux: Add required symbol to EXPORT_SYMS list

PR: 291270

linux: separate all ifnet(9) related code into linux_ifnet.c

Remove linux_use_real_ifname(). It is no longer used outside of the
file since 3ab3c9c29cf0. There is no functional change.

Reviewed b

linux: separate all ifnet(9) related code into linux_ifnet.c

Remove linux_use_real_ifname(). It is no longer used outside of the
file since 3ab3c9c29cf0. There is no functional change.

Reviewed by: melifaro, dchagin
Differential Revision: https://reviews.freebsd.org/D54076

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Remove residual blank line at start of Makefile

This is a residual of the $FreeBSD$ removal.

MFC After: 3 days (though I'll just run the command on the branches)
Sponsored by: Netflix

netlink: move NETLINK define to opt_global.h

Move the NETLINK define into opt_global.h so we can rely on it being
set correctly, without having to remember to include opt_netlink.h.
This ensures tha

netlink: move NETLINK define to opt_global.h

Move the NETLINK define into opt_global.h so we can rely on it being
set correctly, without having to remember to include opt_netlink.h.
This ensures that the NETLINK define is correctly set. If not we
may end up with unloadable modules, due to missing symbols (such as
nlmsg_get_group_writer).

PR: 274306
Reviewed by: imp, markj
MFC after: 3 days
Differential Revision: https://reviews.freebsd.org/D42179

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sys: Remove $FreeBSD$: one-line sh pattern

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

linux(4): Make linux_emul_path private

There is no need to refer to linux_emul_path from outside anymore.

MFC after: 2 month

linux(4): Fix opt_netlink.h inclusion

Add opt_netlink.h to the linux_common module, on i386, where we don't
uses linux_common module, move opt_netlink.h inclusion under
i386 condition.

MFC after:

linux(4): Fix opt_netlink.h inclusion

Add opt_netlink.h to the linux_common module, on i386, where we don't
uses linux_common module, move opt_netlink.h inclusion under
i386 condition.

MFC after: 2 weeks

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linux_common: Fixup .PATH.

Since we have arm64, and awaiting ppc64 Linuxulator, do not include x86 specific
path to the module build for non x86 architectures.

MFC after: 1 week

modules: Add missing opt_*.h files for stand-alone compile

Standalone compile that we at least create these opt_*.h files.

Sponsored by: Netflix

linuxolator: add netlink support

Add the glue code to support netlink in Linuxolator.
linux_common(4) now depends on netlink(4).

All netlink protocol constants are consistent with the Linux version

linuxolator: add netlink support

Add the glue code to support netlink in Linuxolator.
linux_common(4) now depends on netlink(4).

All netlink protocol constants are consistent with the Linux version.
However, certain OS-specific constants such as AF_INET6, interface
flags or default routing table id, are different between FreeBSD and
Linux. Thus, it may be needed to rewrite some message parts or even
rewrite the whole message, adding or removing some TLVs. The core
netlink implementation code provides efficient rewriting callbacks
which Linuxolator now uses.

Reviewed by: dchagin
Differential Revision: https://reviews.freebsd.org/D36361
MFC after: 2 months

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linux(4); Move vdso_selector_x86.c to the linux_common module

MFC after: 2 weeks

linux(4): Deduplicate translate_traps()

As translate_traps() is common for x86 Linuxulators,
move it under x86/linux.

MFC after: 2 weeks

linux: add sysctl to pass untranslated interface names

Reviewed by: kib
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D33792

Fix some modules to export more used symbols

and remove non-present symbols that are now reported by kmod_syms.awk.

Reviewed by: emaste
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differ

Fix some modules to export more used symbols

and remove non-present symbols that are now reported by kmod_syms.awk.

Reviewed by: emaste
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D32878

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linux(4): Deduplicate unimpl/dummy syscall handlers

No functional change.

Reviewed by: emaste, trasz
Differential Revision: https://reviews.freebsd.org/D27099

Make linux_errtbl[] static.

MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D27004

MFHead @348740

Sponsored by: The FreeBSD Foundation

Add warning to the Linuxulator makefiles that building it outside of a
kernel does not make sence.

PR: 222861
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D20179

Linuxulator depends on a fundamental kernel settings such as SMP. Many
of them listed in opt_global.h which is not generated while building
modules outside of a kernel and such modules never match re

Linuxulator depends on a fundamental kernel settings such as SMP. Many
of them listed in opt_global.h which is not generated while building
modules outside of a kernel and such modules never match real cofigured
kernel.

So, we should prevent our users from building obviously defective modules.

Therefore, remove the root cause of the building of modules outside of a
kernel - the possibility of building modules with DEBUG or KTR flags.
And remove all of DEBUG printfs as it is incomplete and in threaded
programms not informative, also a half of system call does not have DEBUG
printf. For debuging Linux programms we have dtrace, ktr and ktrace ability.

PR: 222861
Reviewed by: trasz
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D20178

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Our bsd_to_linux_sockaddr() and linux_to_bsd_sockaddr() functions
alter the userspace sockaddr to convert the format between linux and BSD versions.
That's the minimum 3 of copyin/copyout operations

Our bsd_to_linux_sockaddr() and linux_to_bsd_sockaddr() functions
alter the userspace sockaddr to convert the format between linux and BSD versions.
That's the minimum 3 of copyin/copyout operations for one syscall.

Also some syscall uses linux_sa_put() and linux_getsockaddr() when load
sockaddr to userspace or from userspace accordingly.

To avoid this chaos, especially converting sockaddr in the userspace,
rewrite these 4 functions to convert sockaddr only in kernel and leave
only 2 of this functions.

Also in order to reduce duplication between MD parts of the Linuxulator put
struct sockaddr conversion functions that are MI out into linux_common module.

PR: 232920
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D20157

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linux: Add required symbol to EXPORT_SYMS list

PR: 291270

linux: separate all ifnet(9) related code into linux_ifnet.c

Remove linux_use_real_ifname(). It is no longer used outside of the
file since 3ab3c9c29cf0. There is no functional change.

Reviewed b

linux: separate all ifnet(9) related code into linux_ifnet.c

Remove linux_use_real_ifname(). It is no longer used outside of the
file since 3ab3c9c29cf0. There is no functional change.

Reviewed by: melifaro, dchagin
Differential Revision: https://reviews.freebsd.org/D54076

show more ...

Remove residual blank line at start of Makefile

This is a residual of the $FreeBSD$ removal.

MFC After: 3 days (though I'll just run the command on the branches)
Sponsored by: Netflix

netlink: move NETLINK define to opt_global.h

Move the NETLINK define into opt_global.h so we can rely on it being
set correctly, without having to remember to include opt_netlink.h.
This ensures tha

netlink: move NETLINK define to opt_global.h

Move the NETLINK define into opt_global.h so we can rely on it being
set correctly, without having to remember to include opt_netlink.h.
This ensures that the NETLINK define is correctly set. If not we
may end up with unloadable modules, due to missing symbols (such as
nlmsg_get_group_writer).

PR: 274306
Reviewed by: imp, markj
MFC after: 3 days
Differential Revision: https://reviews.freebsd.org/D42179

show more ...

sys: Remove $FreeBSD$: one-line sh pattern

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