mirror of
https://gitlab.freedesktop.org/NetworkManager/NetworkManager
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d082af6b5c
NM sometimes brings an interface temporarily down (for example to change a VLAN MAC to align it to the parent interface's one). When this happens, any recv() or send() in n-acd fails, the n-acd instance is reset to the initial state and a DOWN event is reported to the manager, which currently does not handle it. The result is an inconsistent state. There is no simple way of dealing with the DOWN event in the manager. What we can do instead is to: - ignore errors during recv() because there is really nothing we can do, except for waiting timeouts to expire; - during probe, ignore errors during send() so that we don't exceed the probe timeout; - during announcement, retry after a send() error to ensure we send all 3 announcements. https://bugzilla.redhat.com/show_bug.cgi?id=1578675 |
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n-acd - IPv4 Address Conflict Detection
ABOUT:
The n-acd project implements the IPv4 Address Conflict Detection
standard as defined in RFC-5227. The state machine is implemented in a
shared library and provides a stable ISO-C11 API. The implementation is
linux-only and relies heavily on the API behavior of recent linux
kernel releases.
DETAILS:
https://github.com/nettools/n-acd/wiki
BUG REPORTS:
https://github.com/nettools/n-acd/issues
GIT:
git@github.com:nettools/n-acd.git
https://github.com/nettools/n-acd.git
GITWEB:
https://github.com/nettools/n-acd
LICENSE:
Apache Software License 2.0 (LICENSE)
See COPYING for details.
REQUIREMENTS:
The requirements for n-acd are:
Linux kernel >= 3.0
libc (e.g., glibc >= 2.16)
At build-time, the following software is required:
meson >= 0.41
pkg-config >= 0.29
INSTALL:
The meson build-system is used for n-acd. Contact upstream
documentation for detailed help. In most situations the following
commands are sufficient to build and install n-acd from source:
$ mkdir build
$ cd build
$ meson setup . ..
$ ninja
$ ninja test
# ninja install
No custom configuration options are available.