Decorate IPv4 structures used for byte buffer overlays as packed.

The C language only allows pointer casting to another type if both sides have
compatible alignments, unaligned casts causes undefine

Decorate IPv4 structures used for byte buffer overlays as packed.

The C language only allows pointer casting to another type if both sides have
compatible alignments, unaligned casts causes undefined behavior.
Since we do not have declared (and therefore not checked) mbuf alignments for
the various input functions in the IP stack, the worst case (alignment to
char*) should be expected.

A lot of work still needs to be done on IPv6, especially on the terrible
accesses to in6_addr members.

It should have no performance impact on all unaligned architectures.

MFC after: 1 month
Reviewed by: kib
PR: 272965
Differential Revision: https://reviews.freebsd.org/D50103

show more ...

sys: Remove $FreeBSD$: two-line .h pattern

Remove /^\s*\*\n \*\s+\$FreeBSD\$$\n/

Decorate IPv4 structures used for byte buffer overlays as packed.

The C language only allows pointer casting to another type if both sides have
compatible alignments, unaligned casts causes undefine

Decorate IPv4 structures used for byte buffer overlays as packed.

The C language only allows pointer casting to another type if both sides have
compatible alignments, unaligned casts causes undefined behavior.
Since we do not have declared (and therefore not checked) mbuf alignments for
the various input functions in the IP stack, the worst case (alignment to
char*) should be expected.

A lot of work still needs to be done on IPv6, especially on the terrible
accesses to in6_addr members.

It should have no performance impact on all unaligned architectures.

MFC after: 1 month
Reviewed by: kib
PR: 272965
Differential Revision: https://reviews.freebsd.org/D50103

show more ...

sys: Remove $FreeBSD$: two-line .h pattern

Remove /^\s*\*\n \*\s+\$FreeBSD\$$\n/

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.

show more ...

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.

show more ...

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

Include <sys/types.h> for autoconf/automake detection.

Submitted by: Pavlin Radoslavov <pavlin@icir.org>

New PIM header files.

Submitted by: Pavlin Radoslavov <pavlin@icir.org>

Decorate IPv4 structures used for byte buffer overlays as packed.

The C language only allows pointer casting to another type if both sides have
compatible alignments, unaligned casts causes undefine

Decorate IPv4 structures used for byte buffer overlays as packed.

The C language only allows pointer casting to another type if both sides have
compatible alignments, unaligned casts causes undefined behavior.
Since we do not have declared (and therefore not checked) mbuf alignments for
the various input functions in the IP stack, the worst case (alignment to
char*) should be expected.

A lot of work still needs to be done on IPv6, especially on the terrible
accesses to in6_addr members.

It should have no performance impact on all unaligned architectures.

MFC after: 1 month
Reviewed by: kib
PR: 272965
Differential Revision: https://reviews.freebsd.org/D50103

show more ...

sys: Remove $FreeBSD$: two-line .h pattern

Remove /^\s*\*\n \*\s+\$FreeBSD\$$\n/

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.

show more ...

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

Include <sys/types.h> for autoconf/automake detection.

Submitted by: Pavlin Radoslavov <pavlin@icir.org>

New PIM header files.

Submitted by: Pavlin Radoslavov <pavlin@icir.org>

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

Include <sys/types.h> for autoconf/automake detection.

Submitted by: Pavlin Radoslavov <pavlin@icir.org>

New PIM header files.

Submitted by: Pavlin Radoslavov <pavlin@icir.org>