RTF_ANNOUNCE was defined as RTF_PROTO2. The flag is used to indicated
that host should act as a proxy for a link level arp or ndp request.
(If RTF_PROTO2 is used as an experimental flag (as advertised),
various problems can occur.)
This commit provides a first-class definition with its own bit for
RTF_ANNOUNCE, removes the old aliasing definitions, and adds support
for the new RTF_ANNOUNCE flag to netstat(8) and route(8).,
Also, remove unused RTF_ flags that collide with RTF_PROTO1:
netinet/icmp6.h defined RTF_PROBEMTU as RTF_PROTO1
netinet/if_inarp.h defined RTF_USETRAILERS as RTF_PROTO1
(Neither of these flags are used anywhere. Both have been removed
to reduce chances of collision with RTF_PROTO1.)
Figuring this out and the diff are the work of Beverly Schwartz of
BBN.
(Passed release build, boot in VM, with no apparently related atf
failures.)
Approved for Public Release, Distribution Unlimited
This material is based upon work supported by the Defense Advanced
Research Projects Agency and Space and Naval Warfare Systems Center,
Pacific, under Contract No. N66001-09-C-2073.
use only sysctl and no kvm (implementing /dev/mem for a rump kernel
would probably not be hard, but still a non-zero effort).
Note: since there is absolutely no network activity in a fresh rump
kernel, rump.netstat usually displays exactly nothing when invoked
without parameters. Arguments like -r, -bi, -p icmp etc. produce
more stuff.
This commit mostly adds code written by Claudio Jeker for OpenBSD to
support sysctl in the interface printing parts (-i, -I, -w). The port has
been ported to NetBSD with tiny adjustments -- of course all bugs etc.
are mine.
Also add and document a -X flag to force sysctl usage. The documentation
notes this flag may be removed at any time and its presence should not be
relied on.
Some misc. comments/#ifdef changes/code snippet moves as well.
Please note that no functionality should change as the routing and
interface printing code is still not fully supported.
Mailing list reference:
http://mail-index.netbsd.org/tech-userlevel/2009/09/09/msg002604.html
Heavily based on similar code from Claudio Jeker (at OpenBSD).
While here, fix inet/inet6 sysctl stuff commited previously to
actually work, and some other nits to make netstat more sysctl
friendly.
One step closer to losing setgid kmem on this one...
gdt