src-test2/sys/netinet/ip.h, branch releng/9.3

MFC r235036:

2012-05-22T19:53:25Z

Add ToS definitions for DiffServ Codepoints as per RFC2474. Obtained from: OpenBSD

use u_char instead of u_int for short bitfields.

2010-02-01T14:13:44Z

For our compiler the two constructs are completely equivalent, but some compilers (including MSC and tcc) use the base type for alignment, which in the cases touched here result in aligning the bitfields to 32 bit instead of the 8 bit that is meant here. Note that almost all other headers where small bitfields are used have u_int8_t instead of u_int. MFC after: 3 days

Use uint32_t instead of n_long and n_time, and uint16_t instead of n_short.

2009-02-13T15:14:43Z

Add a note next to fields in network format. The n_* types are not enough for compiler checks on endianness, and their use often requires an otherwise unnecessary #include The typedef in in_systm.h are still there.

Move CTASSERT from header file to source file, per implementation note now

2008-09-26T18:30:11Z

in the CTASSERT man page. Submitted by: Ryan Stone

Remove IPTOS_CE and IPTOS_ECT constants. They were defined in RFC 2481

2007-10-19T12:46:15Z

but later obsoleted by RFC 3168. Discussed on freebsd-net with no objections. Approved by: njl (mentor), rwatson

White space and style cleanup.

2007-05-11T11:00:48Z

Marking this as __packed was needed to get the alignment and offset of

2007-01-12T07:23:31Z

members right. However, it also said it was aligned(1), which meant that gcc generated really bad code. Mark this as aligned(4). This makes things a little faster on arm (a couple percent), but also saves about 30k on the size of the kernel for arm. I talked about doing this with bde, but didn't check with him before the commit, so I'm hesitant say 'reviewed by: bde'.

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

2005-01-07T01:45:51Z

Remove advertising clause from University of California Regent's

2004-04-07T20:46:16Z

license, per letter dated July 22, 1999 and email from Peter Wemm, Alan Cox and Robert Watson. Approved by: core, peter, alc, rwatson

Spell types consistently throughout this file. Do not use the __packed attribute, as we are often #include'd from userland without in front of us, and it is not strictly necessary.

2004-02-16T14:40:56Z

Noticed by: Sascha Blank