networkd: bond support primary slave and active slave (#4873)

active_slave:

Specifies the new active slave for modes that support it
(active-backup, balance-alb and balance-tlb).

primary slave:
systemd-networks currently lacks the capability to set the primary slave
in an
active-backup bonding. This is necessary if you prefer one interface
over the
other. A common example is a eth0-wlan0 bonding on a laptop where you'd
want to
switch to the wired connection whenever it's available.

Fixes: #2837

1 files changed, 2 insertions, 0 deletions

diff --git a/src/network/networkd-network.h b/src/network/networkd-network.h
index d13e306add..4cf784f67c 100644
--- a/src/network/networkd-network.h
+++ b/src/network/networkd-network.h
@@ -167,6 +167,8 @@ struct Network {
         int proxy_arp;
 
         bool ipv6_accept_ra_use_dns;
+        bool active_slave;
+        bool primary_slave;
         DHCPUseDomains ipv6_accept_ra_use_domains;
         uint32_t ipv6_accept_ra_route_table;