Date: Fri, 26 Dec 2008 19:45:24 +0000 (UTC) From: Qing Li <qingli@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/net route.h rtsock.c src/sys/netinet in.c src/sys/netinet6 in6.c src/usr.sbin/arp arp.c src/usr.sbin/ndp ndp.c Message-ID: <200812261950.mBQJoZlj076291@repoman.freebsd.org>
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qingli 2008-12-26 19:45:24 UTC
FreeBSD src repository
Modified files:
sys/net route.h rtsock.c
sys/netinet in.c
sys/netinet6 in6.c
usr.sbin/arp arp.c
usr.sbin/ndp ndp.c
Log:
SVN rev 186500 on 2008-12-26 19:45:24Z by qingli
This checkin addresses a couple of issues:
1. The "route" command allows route insertion through the interface-direct
option "-iface". During if_attach(), an sockaddr_dl{} entry is created
for the interface and is part of the interface address list. This
sockaddr_dl{} entry describes the interface in detail. The "route"
command selects this entry as the "gateway" object when the "-iface"
option is present. The "arp" and "ndp" commands also interact with the
kernel through the routing socket when adding and removing static L2
entries. The static L2 information is also provided through the
"gateway" object with an AF_LINK family type, similar to what is
provided by the "route" command. In order to differentiate between
these two types of operations, a RTF_LLDATA flag is introduced. This
flag is set by the "arp" and "ndp" commands when issuing the add and
delete commands. This flag is also set in each L2 entry returned by the
kernel. The "arp" and "ndp" command follows a convention where a RTM_GET
is issued first followed by a RTM_ADD/DELETE. This RTM_GET request fills
in the fields for a "rtm" object, which is reinjected into the kernel by
a subsequent RTM_ADD/DELETE command. The entry returend from RTM_GET
is a prefix route, so the RTF_LLDATA flag must be specified when issuing
the RTM_ADD/DELETE messages.
2. Enforce the convention that NET_RT_FLAGS with a 0 w_arg is the
specification for retrieving L2 information. Also optimized the
code logic.
Reviewed by: julian
Revision Changes Path
1.78 +1 -0 src/sys/net/route.h
1.159 +21 -7 src/sys/net/rtsock.c
1.113 +1 -1 src/sys/netinet/in.c
1.93 +1 -1 src/sys/netinet6/in6.c
1.70 +2 -1 src/usr.sbin/arp/arp.c
1.25 +2 -1 src/usr.sbin/ndp/ndp.c
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