Copy stable/9 to releng/9.3 as part of the 9.3-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

MFC r227293 (by ed):
Mark MALLOC_DEFINEs static that have no corresponding MALLOC_DECLAREs.

This means that their use is restricted to a single C file.

Copy head to stable/9 as part of 9.0-RELEASE release cycle.

Approved by: re (implicit)

remove RESTARTABLE_PANICS option

This is done per request/suggestion from John Baldwin
who introduced the option. Trying to resume normal
system operation after a panic is very unpredictable
and dangerous. It will become even more dangerous
when we allow a thread in panic(9) to penetrate all
lock contexts.
I understand that the only purpose of this option was
for testing scenarios potentially resulting in panic.

Suggested by: jhb
Reviewed by: attilio, jhb
X-MFC-After: never
Approved by: re (kib)

Retire the MALLOC and FREE macros. They are an abomination unto style(9).

MFC after: 3 months

Fix various compilation warnings for gcc-4.2.

Approved by: re (bruce)

Fix two accesses to uninitialized variables that a revision 1.27
has introduced.

Found with: Coverity Prevent(tm)

Make code simplier fixing memory leak.

Found with: Coverity Prevent(tm)

Fix two memory leakages.

Found with: Coverity Prevent(tm)

Fixed parsing of unsigned integers.

Replace NG_PARSE_APPEND() macro with ng_parse_append() function. Check
its return value and free resources if function returns error. Plug
several memory leaks with this change.

Submitted by: archie
Found by: Coverity Prevent analysis tool

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

Avoid casts as lvalues.

Convert Netgraph to use mbuf tags to pass its meta information around.
Thanks to Sam for importing tags in a way that allowed this to be done.

Submitted by: Gleb Smirnoff <glebius@cell.sick.ru>
Also allow the sr and ar drivers to create netgraph versions of their modules.
Document the change to the ksocket node.

Fix a memory leak in ng_get_string_token. A dynamically-allocated
buffer wasn't freed if the function failed.

MFC after: 3 days

Get rid of the deprecated *LEN constants in favour of the new
*SIZ constants that include the trailing \0 byte.

Made the Ethernet address parse type standard.

OK'ed by: archie

Use intptr_t to fix various sizeof(int) != sizeof(void *) warnings.

Fix GCC warnings caused by initializing a zero length array. In the process,
simply things a bit by getting rid of 'struct ng_parse_struct_info' which
was useless because it only contained one field.

MFC after: 2 weeks

Fix warnings: deprecated use of label at end of compound statement

Fix bug in previous commit.

Submitted by: Harti Brandt <brandt@fokus.gmd.de>

Some netgraph parse types (such as for the 'value' field in ng_ksocket's
'struct ng_ksocket_sockopt') like to peek into the ng_mesg header for
information. Make sure when generating default values that we provide
a valid header to peek into.

MFC after: 1 week

Update to C99, s/__FUNCTION__/__func__/,
also don't use ANSI string concatenation.

KSE Milestone 2
Note ALL MODULES MUST BE RECOMPILED
make the kernel aware that there are smaller units of scheduling than the
process. (but only allow one thread per process at this time).
This is functionally equivalent to teh previousl -current except
that there is a thread associated with each process.

Sorry john! (your next MFC will be a doosie!)

Reviewed by: peter@freebsd.org, dillon@freebsd.org

X-MFC after: ha ha ha ha

Fix a range checking bug in ng_int32_parse which affected 64-bit
machines. The code formerly read:

long val;
if (val < (long)-0x80000000 || ...)
return EINVAL;

The constant 0x80000000 has type unsigned int. The unary `-'
operator does not change the type (or the value, in this case).
Therefore the promotion to long is done by 0-extension, giving
0x0000000080000000 instead of the desired 0xffffffff80000000. I
got rid of the `-' and changed the cast to (int32_t) to give proper
sign-extension on all architectures and to better reflect the fact
that we are range-checking a 32-bit value.

This commit also makes the analogous changes to ng_int{8,16}_parse
for consistency.

MFC after: 3 days

Fix some memory leaks
Add memory leak detection assitance.

Add the use of M_ZERO to netgraph.

Submitted by: josh@zipperup.org
Submitted by: Robert Drehmel <robd@gmx.net>
Submitted by: archie
Approved by: archie

Go back to using data_len in struct ngpppoe_init_data after discussions
with Julian and Archie.

Implement a new ``sizedstring'' parse type for dealing with field pairs
consisting of a uint16_t followed by a data field of that size, and use
this to deal with the data_len and data fields.

Written by: Archie with some input by me
Agreed in principle by: julian

Since neither archie nor I work at Whistle any more, change our email
addresses to be the more usefu @freebsd.org ones
so we can keep getting bug-reports.
- man pages to follow..

Avoid free'ing a NULL pointer.

- Add new unsigned and hex integer parse types; this allows simplifying
the bytearray parse type.
- Allocate (larger) temporary work buffer dynamically instead of on the
stack when comparing to the default value.

Fix typo: "ng_parse_fixedsstring_info" -> "ng_parse_fixedstring_info"

Remove a bunch of un-needed includes.
Submitted by: phk@freebsd.org

Fix bug parsing 32 bit integers on machines where sizeof(long) == 4.

Add two new generic control messages, NGM_ASCII2BINARY and
NGM_BINARY2ASCII, which convert control messages to ASCII and back.
This allows control messages to be sent and received in ASCII form
using ngctl(8), which makes ngctl a lot more useful.

This also allows all the type-specific debugging code in libnetgraph
to go away -- instead, we just ask the node itself to do the ASCII
translation for us.

Currently, all generic control messages are supported, as well as
messages associated with the following node types: async, cisco,
ksocket, and ppp.

See /usr/share/examples/netgraph/ngctl for an example of using this.

Also give ngctl(8) the ability to print out incoming data and
control messages at any time. Eventually nghook(8) may be subsumed.

Several other misc. bug fixes.

Reviewed by: julian