diff options
| author | Yu Watanabe <watanabe.yu+github@gmail.com> | 2024-11-13 06:13:01 +0100 |
|---|---|---|
| committer | Yu Watanabe <watanabe.yu+github@gmail.com> | 2024-11-14 02:01:42 +0100 |
| commit | ab6d4275473a3ddd4440202197a81514d94df994 (patch) | |
| tree | 27d0009949d4983168326c8dba56b014909491f2 /src/network | |
| parent | namespace-util: pin pid via pidfd during namespace_open() (diff) | |
| download | systemd-ab6d4275473a3ddd4440202197a81514d94df994.tar.xz systemd-ab6d4275473a3ddd4440202197a81514d94df994.zip | |
network/netdev: set interface name only when creating a new netdev
Otherwise, the kernel older than v6.2 will refuse the netlink message.
Diffstat (limited to 'src/network')
| -rw-r--r-- | src/network/netdev/netdev.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/src/network/netdev/netdev.c b/src/network/netdev/netdev.c index 85760c741d..6c8ad1b3e9 100644 --- a/src/network/netdev/netdev.c +++ b/src/network/netdev/netdev.c @@ -662,9 +662,14 @@ static bool netdev_can_set_mtu(NetDev *netdev, uint32_t mtu) { static int netdev_create_message(NetDev *netdev, Link *link, sd_netlink_message *m) { int r; - r = sd_netlink_message_append_string(m, IFLA_IFNAME, netdev->ifname); - if (r < 0) - return r; + if (netdev->ifindex <= 0) { + /* Set interface name when it is newly created. Otherwise, the kernel older than + * bd039b5ea2a91ea707ee8539df26456bd5be80af (v6.2) will refuse the netlink message even if + * the name is unchanged. */ + r = sd_netlink_message_append_string(m, IFLA_IFNAME, netdev->ifname); + if (r < 0) + return r; + } struct hw_addr_data hw_addr; r = netdev_generate_hw_addr(netdev, link, netdev->ifname, &netdev->hw_addr, &hw_addr); |