Remove svn:mergeinfo carried over from stable/9.

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

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

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

Merge r248159:
Fix for quite a special case when userland emulates a netgraph node, and
userland can reply to a message with NGM_HASREPLY bit set. In this case
we should not wait for a response to a responce.

PR: 176771
Submitted by: Keith Reynolds <keith.reynolds tidalscale.com>

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

Approved by: re (implicit)

bring the NGM_IPFW_COOKIE back into ng_ipfw.h, libnetgraph expects
to find it there. Unfortunately this reintroduces the dependency
on ip_fw_pfil.c

this file is also affected by the ipfw changes

Bump the version of all non-symbol-versioned shared libraries in
preparation for 8.0-RELEASE. Add the previous version of those
libraries to ObsoleteFiles.inc and bump __FreeBSD_Version.

Reviewed by: kib
Approved by: re (rwatson)

Bump library versions in preparation for 7.0.

Ok'd by: kan

Replace select() by poll() to avoid problems with big
descriptor number.

Approved by: glebius (mentor)

Include sys/socket.h to know about sa_family_t.

In the splnet(9) times netgraph(4) was synchronous and if a message
had been replied, the reply was always delivered to the originator
synchronously.

With introduction of netgraph item callbacks and a wait channel with
mutex in ng_socket(4), we have fixed the problem with ngctl(8) returning
earlier than the command has been proceeded by target node. But still
ngctl(8) can return prior to the reply has arrived to its node.

To fix this:
- Introduce a new flag for netgraph(4) messages - NGM_HASREPLY.
This flag is or'ed with message like NGM_READONLY.
- In netgraph userland library if we have sent a message with
NGM_HASREPLY flag, then select(2) until reply comes.
- Mark appropriate generic commands with NGM_HASREPLY flag,
gathering them into one enum {}. Bump generic cookie.

Recognize all current standard node types.

Bump the shared library version number of all libraries that have not
been bumped since RELENG_5.

Reviewed by: ru
Approved by: re (not needed for commit check but in principle...)

Make this compile with GCC4 by fixing a few signedness related warnings.

Reviewed by: md5(1)

When we have converted an ASCII message to binary, set its version in
the header. Otherwise we will send a message with zero version.

MFC after: 3 days

Prefer C99's __func__ over GCC's __FUNCTION__.

Yes, NgRecvAsciiMsg has the same results as NgRecvAsciiMsg, but it's
much more apt to note that it has the same result as NgRecvMsg. Make
the manual page less circular in its reference to this fact.

Mechanically kill hard sentence breaks.

Increment WARNS.

- Added three new interfaces, NgAllocRecvMsg(), NgAllocRecvAsciiMsg(),
and NgAllocRecvData(), that dynamically allocate buffer for a binary
message, an ascii message, and a data packet, respectively. The size
of the allocated buffer is equal to the socket's receive buffer size
to guarantee that a message or a data packet is not truncated.

- Get rid of the static size buffer in NgSendAsciiMsg().

OK'ed by: archie, julian

mdoc(7) cleanup.

Fixed memory leak in NgSendAsciiMsg().

Use the new defines that include the trailing '\0' in the code.
Replace occurences of the magic constant 2 with an offsetof macro
call that computes the size of the leading members of the sockaddr.
Use strlcpy instead of sprintf where appropriate. Document the new changes
in the man page.

The .Fn function

Correct typos, mostly s/ a / an / where appropriate. Some whitespace cleanup,
especially in troff files.

english(4) police.

Zap now-unused SHLIB_MINOR

Fix bugs in NgSendMsg() and NgSendAsciiMsg() where the wrong token
value could be returned when the debug level was non-zero.

Submitted by: Harti Brandt <brandt@fokus.gmd.de>
MFC after: 5 days

mdoc(7) police: Use the new .In macro for #include statements.

Add __FBSDID()s to libnetgraph

mdoc(7) police: markup nits.

Rename the DIAGNOSTICS section to RETURN VALUES and describe the
return values a little more. Specifically, mention that a return
of 0 from NgRecvData() and NgRecvMsg() means the socket has been
closed.

Suggested by: jkh

Explain what the return value from NgRecvMsg() and NgRecvData() means,
specifically that 0 means the socket has been closed.

Mark some functions as __printflike() and/or taking const char * arguments
instead of char *.

MFC after: 2 weeks

Remove whitespace at EOL.

Set WARNS=2 on libraries that compile cleanly with it.

Submitted by: Mike Barcroft <mike@q9media.com>

mdoc(7) police: removed HISTORY info from the .Os call.

mdoc(7) police: sort SEE ALSO xrefs (sort -b -f +2 -3 +1 -2).

Correct cross-references:
ng_bpf.8 --> ng_bpf.4
ng_ether.8 --> ng_ether.4
ng_iface.8 --> ng_iface.4
ng_pppoe.8 --> ng_pppoe.4
ng_socket.8 --> ng_socket.4
ng_tty.8 --> ng_tty.4
ng_{type}.4 --> /dev/null

MFC after: 1 week

MAN[1-9] -> MAN.

mdoc(7) police: removed history info from the .Os FreeBSD call.

- Make sure the message token returned by NgSendMsg() is non-negative
- Have NgSendAsciiMsg() return the same token as NgSendMsg()
- Document that NgSendMsg() and NgSendAsciiMsg() return the token
- Add MLINKS for the functions defined in netgraph(3)

Fix buffer overflow bug in NgSendAsciiMsg().

Move netgraph node type man pages from section 8 to section 4.

Fix a bug handling the debug level when displaying control messages
in their ASCII forms at debug levels >= 3.

Introduce .Lb macro to netgraph library manpage

Have NgMkSockNode() load the socket node type KLD if it's not
already loaded (indicated by EPROTONOSUPPORT from socket(2)).

Replace beforeinstall target with new variables used by .mk system.

Reviewed by: marcel, and make world

Remove -g compiler flag.

Manual page style work.
Submitted by: Alexey Zelkin <phantom@FreeBSD.org>
thanks!

Missed part of previous commit.

Recognize NGM_BPF_COOKIE.

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

The "acfcomp" field is not in the structure anymore. There may be a better
way to do that but it fixes buildworld.

World broken by: archie :-)

Whistle's Netgraph link-layer (sometimes more) networking infrastructure.
Been in production for 3 years now. Gives Instant Frame relay to if_sr
and if_ar drivers, and PPPOE support soon. See:
ftp://ftp.whistle.com/pub/archie/netgraph/index.html
for on-line manual pages.

Reviewed by: Doug Rabson (dfr@freebsd.org)
Obtained from: Whistle CVS tree