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network/netdev: set interface name only when creating a new netdev

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Otherwise, the kernel older than v6.2 will refuse the netlink message.
This commit is contained in:
Yu Watanabe
2024-11-14 10:01:42 +09:00
parent 9466fe014f
commit ab6d427547
1 changed files with 8 additions and 3 deletions
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src/network/netdev/netdev.c
+8 -3
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@@ -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);