diff options
| author | Yifeng Sun <pkusunyifeng@gmail.com> | 2018-06-26 14:06:21 -0700 |
|---|---|---|
| committer | Ben Pfaff <blp@ovn.org> | 2018-07-06 13:50:00 -0700 |
| commit | 771680d96fb6f996987630cb85bb749478512268 (patch) | |
| tree | e3fddb4c770f88e405fd82787933216fc5b1ac58 /lib/vconn-passive.man | |
| parent | def5b366a3626fddc87a449e8447f79a6957d55f (diff) | |
| download | openvswitch-771680d96fb6f996987630cb85bb749478512268.tar.gz | |
DNS: Add basic support for asynchronous DNS resolving
This patch is a simple implementation for the proposal discussed in
https://mail.openvswitch.org/pipermail/ovs-dev/2017-August/337038.html and
https://mail.openvswitch.org/pipermail/ovs-dev/2017-October/340013.html.
It enables ovs-vswitchd and other utilities to use DNS names when specifying
OpenFlow and OVSDB remotes.
Below are some of the features and limitations of this patch:
- Resolving is asynchornous in daemon context, avoiding blocking main loop;
- Resolving is synchronous in general utility context;
- Both IPv4 and IPv6 are supported;
- The resolving API is thread-safe;
- Depends on the unbound library;
- When multiple ip addresses are returned, only the first one is used;
- /etc/nsswitch.conf isn't respected as unbound library doesn't look at it;
- For async-resolving, caller need to retry later; there is no callback.
Signed-off-by: Yifeng Sun <pkusunyifeng@gmail.com>
Signed-off-by: Ben Pfaff <blp@ovn.org>
Diffstat (limited to 'lib/vconn-passive.man')
| -rw-r--r-- | lib/vconn-passive.man | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/lib/vconn-passive.man b/lib/vconn-passive.man index 1ffa18397..d02e75f81 100644 --- a/lib/vconn-passive.man +++ b/lib/vconn-passive.man @@ -1,12 +1,12 @@ -.IP "\fBpssl:\fR[\fIport\fR][\fB:\fIip\fR]" -.IQ "\fBptcp:\fR[\fIport\fR][\fB:\fIip\fR]" +.IP "\fBpssl:\fR[\fIport\fR][\fB:\fIhost\fR]" +.IQ "\fBptcp:\fR[\fIport\fR][\fB:\fIhost\fR]" Listens for OpenFlow connections on \fIport\fR. The default \fIport\fR is 6653. By default, connections are allowed from any IPv4 -address. Specify \fIip\fR as an IPv4 address or a bracketed IPv6 +address. Specify \fIhost\fR as an IPv4 address or a bracketed IPv6 address (e.g. \fBptcp:6653:[::1]\fR). On Linux, use \fB%\fIdevice\fR to designate a scope for IPv6 link-level addresses, -e.g. \fBptcp:6653:[fe80::1234%eth0]\fR. DNS names may -not be used. For \fBpssl\fR, the +e.g. \fBptcp:6653:[fe80::1234%eth0]\fR. DNS names can +be used if built with unbound library. For \fBpssl\fR, the \fB\-\-private\-key\fR,\fB\-\-certificate\fR, and \fB\-\-ca\-cert\fR options are mandatory. .IP |