This series, along with pseudo-related fixes, enables:
- optional copy of all routes from selected interface in outer
namespace, to fix the issue reported by Callum at:
https://github.com/containers/podman/issues/18539
- optional copy of all addresses, mostly for consistency. It doesn't,
however, enable assignment of multiple addresses in the sense
requested at:
https://bugs.passt.top/show_bug.cgi?id=47
because the addresses still need to be present on the host, and
the "outer" address isn't selected depending on the address used
inside the container
- operation without a gateway address. This is related to:
https://bugs.passt.top/show_bug.cgi?id=49
but Wireguard endpoints established outside the container
can't be used yet as outbound interface (without the workaround
reported there) for a number of reasons I'm still investigating.
In any case, the correct route is now configured in the container,
even without a default gateway on the corresponding host route,
so we're a bit closer to support that configuration out of the box.
v2:
- in 3/10, repeat the netlink request once for each RTM_NEWROUTE we're
going to send as part of the request: routes might depend on each
other, and this is a somewhat rudimentary, but seemingly robust
approach to insert all the routes we can insert, without explicitly
calculating dependencies
- Cc: Andrea, reporter for the issue fixed in 4/10
Stefano Brivio (10):
netlink: Fix comment about response buffer size for nl_req()
pasta: Improve error handling on failure to join network namespace
netlink: Add functionality to copy routes from outer namespace
conf: --config-net option is for pasta mode only
conf, pasta: With --config-net, copy all routes by default
Revert "conf: Adjust netmask on mismatch between IPv4 address/netmask
and gateway"
conf: Don't exit if sourced default route has no gateway
netlink: Add functionality to copy addresses from outer namespace
conf, pasta: With --config-net, copy all addresses by default
passt.h: Fix description of pasta_ifi in struct ctx
conf.c | 81 +++++++++++++++++++-------------
netlink.c | 135 +++++++++++++++++++++++++++++++++++++++++-------------
netlink.h | 13 ++++--
passt.1 | 25 +++++++++-
passt.h | 8 +++-
pasta.c | 26 +++++++----
6 files changed, 207 insertions(+), 81 deletions(-)
--
2.39.2