src/sys/net/if_loop.c, branch release/5.4.0

MFC: /*- and related license changes

2005-01-31T23:27:04Z

MFC: Apply error and success logic consistently to the function netisr_queue()

2004-09-15T15:14:19Z

and its users. Approved by: re (kensmith)

Avoid casts as lvalues.

2004-07-28T06:59:55Z

Do a pass over all modules in the kernel and make them return EOPNOTSUPP

2004-07-15T08:26:07Z

for unknown events. A number of modules return EINVAL in this instance, and I have left those alone for now and instead taught MOD_QUIESCE to accept this as "didn't do anything".

Those are unneeded too.

2004-06-27T09:06:10Z

Add two missing includes and remove two uneeded.

2004-06-27T09:03:22Z

This is quite serious fix, because even with MAC framework compiled in, MAC entry points in those two files were simply ignored.

Major overhaul of pseudo-interface cloning. Highlights include:

2004-06-22T20:13:25Z

- Split the code out into if_clone.[ch]. - Locked struct if_clone. [1] - Add a per-cloner match function rather then simply matching names of the form and . - Use the match function to allow creation of . vlan interfaces. The old way is preserved unchanged! - Also the match function to allow creation of stf(4) interfaces named stf0, stf, or 6to4. This is the only major user visible change in that "ifconfig stf" creates the interface stf rather then stf0 and does not print "stf0" to stdout. - Allow destroy functions to fail so they can refuse to delete interfaces. Currently, we forbid the deletion of interfaces which were created in the init function, particularly lo0, pflog0, and pfsync0. In the case of lo0 this was a panic implementation so it does not count as a user visiable change. :-) - Since most interfaces do not need the new functionality, an family of wrapper functions, ifc_simple_*(), were created to wrap old style cloner functions. - The IF_CLONE_INITIALIZER macro is replaced with a new incompatible IFC_CLONE_INITIALIZER and ifc_simple consumers use IFC_SIMPLE_DECLARE instead. Submitted by: Maurycy Pawlowski-Wieronski [1] Reviewed by: andre, mlaier Discussed on: net

Staticize _clone_{create,destroy} functions.

2004-04-14T00:57:49Z

Reviewed by: mlaier

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

Introduce lo_mtx to protect the global loopback softc list. I'm not

2004-03-09T17:27:48Z

really sure why we have a softc list for if_loop, given that it can't be unloaded, but that's an issue to revisit in the future as corrupting the softc list would still cause panics. Reviewed by: benno