sysv ipc: remove {msg,sem,shm}sys() declerations

These syscall muxes are under COMPAT7 or earlier and AFACT they were
only ever used in libc. The which arguments seems to have never had a
published

sysv ipc: remove {msg,sem,shm}sys() declerations

These syscall muxes are under COMPAT7 or earlier and AFACT they were
only ever used in libc. The which arguments seems to have never had a
published API and it was a mistake that they were exported or declared.

Reviewed by: kib, jhb
Differential Revision: https://reviews.freebsd.org/D46209

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SysV IPC: provide in-kernel helpers to obtain ipcs(8)-like information

PR: 278949
Reviewed by: markj
Tested by: Ricardo Branco <rbranco@suse.de>
Sponsored by: The FreeBSD Foundation
MFC after: 1 wee

SysV IPC: provide in-kernel helpers to obtain ipcs(8)-like information

PR: 278949
Reviewed by: markj
Tested by: Ricardo Branco <rbranco@suse.de>
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D45175

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

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

Don't define struct mymsg.

PR: 224299, 224443 (exp-run)
Reviewed by: kib, jhb
Exp-run by: antoine
Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D14491

Rename kernel-only members of semid_ds and msgid_ds.

This deliberately breaks the API in preperation for future syscall
revisions which will remove these nonstandard members.

In an exp-run a single

Rename kernel-only members of semid_ds and msgid_ds.

This deliberately breaks the API in preperation for future syscall
revisions which will remove these nonstandard members.

In an exp-run a single port (devel/qemu-user-static) was found to
use them which it did becuase it emulates system calls. This has
been fixed in the ports tree.

PR: 224443 (exp-run)
Reviewed by: kib, jhb (previous version)
Exp-run by: antoine
Sponsored by: DARPA, AFRP
Differential Revision: https://reviews.freebsd.org/D14490

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Get rid of the requirement to include SysV IPC headers with _KERNEL
defined in ipcrm by introducing _WANT_SYSVxxx_INTERNALS defines.

Reviewed by: jhb
Sponsored by: DARPA, AFRL
Differential Revision:

Get rid of the requirement to include SysV IPC headers with _KERNEL
defined in ipcrm by introducing _WANT_SYSVxxx_INTERNALS defines.

Reviewed by: jhb
Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D14271

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style(9): use a type for each member in struct defintions.

Shorten a comment to fit in 80 columns.

Remove part of a comment reverting to nonexistant struct members.

Merge ^/head r326936 through r327149.

Revert r327005 - SPDX tags for license similar to BSD-2-Clause.

After consultation with SPDX experts and their matching guidelines[1],
the licensing doesn't exactly match the BSD-2-Clause. It yet re

Revert r327005 - SPDX tags for license similar to BSD-2-Clause.

After consultation with SPDX experts and their matching guidelines[1],
the licensing doesn't exactly match the BSD-2-Clause. It yet remains to be
determined if they are equivalent or if there is a recognized license that
matches but it is safer to just revert the tags.

Let this also be a reminder that on FreeBSD, SPDX tags are only advisory
and have no legal value (but IANAL).

Pointyhat to: pfg
Thanks to: Rodney Grimes, Gary O'Neall

[1] https://spdx.org/spdx-license-list/matching-guidelines

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SPDX: These are fundamentally BSD-2-Clause.

They just omit the introductory line and numbering.

SPDX: mostly fixes to previous changes.

Introduce the recently approved BSD-1-Clause and replace 0BSD which
never did fit well our use cases.

SPDX: Fix some cases wrongly attributed to MIT.

In the cases of BSD-style license variants without clauses, use 0BSD for
the time being in lack of a better description.

sys/sys: further adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error

sys/sys: further adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

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.

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Merge ^/head r303250 through r304235.

Change the return type of msgrcv() to ssize_t as required by POSIX.

It looks like the msgrcv() system call is already written in such a way
that the size is internally computed as a size_t and writt

Change the return type of msgrcv() to ssize_t as required by POSIX.

It looks like the msgrcv() system call is already written in such a way
that the size is internally computed as a size_t and written into all of
td_retval[0]. This means that it is effectively already returning
ssize_t. It's just that the userspace prototype doesn't match up.

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Finish merging from head, messed up in previous attempt

Catch up with head, primarily for the 1.14.4.0 firmware.

Merge ^/head r285924 through r286421.

Get function prototypes for msg, shm, sem functions
from header files.

Differential Revision: D2669

Add ucred pointer to the SysV-related memory structures. This is required
for racct.

Note that after this commit, ipcs(1) needs to be rebuilt. Otherwise, it will
fail with "ipcs: sysctlbyname: ker

Add ucred pointer to the SysV-related memory structures. This is required
for racct.

Note that after this commit, ipcs(1) needs to be rebuilt. Otherwise, it will
fail with "ipcs: sysctlbyname: kern.ipc.msqids: Cannot allocate memory".

Sponsored by: The FreeBSD Foundation
Reviewed by: kib (earlier version)

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Merge from head

- MFC

Change the ABI of some of the structures used by the SYSV IPC API:
- The uid/cuid members of struct ipc_perm are now uid_t instead of unsigned
short.
- The gid/cgid members of struct ipc_perm are n

Change the ABI of some of the structures used by the SYSV IPC API:
- The uid/cuid members of struct ipc_perm are now uid_t instead of unsigned
short.
- The gid/cgid members of struct ipc_perm are now gid_t instead of unsigned
short.
- The mode member of struct ipc_perm is now mode_t instead of unsigned short
(this is merely a style bug).
- The rather dubious padding fields for ABI compat with SV/I386 have been
removed from struct msqid_ds and struct semid_ds.
- The shm_segsz member of struct shmid_ds is now a size_t instead of an
int. This removes the need for the shm_bsegsz member in struct
shmid_kernel and should allow for complete support of SYSV SHM regions
>= 2GB.
- The shm_nattch member of struct shmid_ds is now an int instead of a
short.
- The shm_internal member of struct shmid_ds is now gone. The internal
VM object pointer for SHM regions has been moved into struct
shmid_kernel.
- The existing __semctl(), msgctl(), and shmctl() system call entries are
now marked COMPAT7 and new versions of those system calls which support
the new ABI are now present.
- The new system calls are assigned to the FBSD-1.1 version in libc. The
FBSD-1.0 symbols in libc now refer to the old COMPAT7 system calls.
- A simplistic framework for tagging system calls with compatibility
symbol versions has been added to libc. Version tags are added to
system calls by adding an appropriate __sym_compat() entry to
src/lib/libc/incldue/compat.h. [1]

PR: kern/16195 kern/113218 bin/129855
Reviewed by: arch@, rwatson
Discussed with: kan, kib [1]

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/* -> /*- for license, minor formatting changes