[NETFILTER]: nfctnetlink: Don't allow to change helper
commite2d8e314ad18d4302b3b7ea21ab8b2cb72f2b152
authorYasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp>
Fri, 22 Jun 2007 21:10:22 +0000 (22 14:10 -0700)
committerDavid S. Miller <davem@davemloft.net>
Fri, 22 Jun 2007 21:10:22 +0000 (22 14:10 -0700)
tree3d079e12c57565cf0ecfff4af18f88e9cd1e5f2e
parentd258131aaea8a3979f82c0313b9a583130b29981
[NETFILTER]: nfctnetlink: Don't allow to change helper

There is no realistic situation to change helper (Who wants IRC helper to
track FTP traffic ?). Moreover, if we want to do that, we need to fix race
issue by nfctnetlink and running helper. That will add overhead to packet
processing. It wouldn't pay. So this rejects the request to change
helper. The requests to add or remove helper are accepted as ever.

Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/netfilter/nf_conntrack_netlink.c