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device: set IPv6 token only when necessary

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Setting the IPv6 token triggers a new router solicitation from kernel
and so we should avoid when not strictly necessary.

https://mail.gnome.org/archives/networkmanager-list/2019-May/msg00004.html
https://gitlab.freedesktop.org/NetworkManager/NetworkManager/issues/179
This commit is contained in:
Beniamino Galvani
2019-06-25 09:51:22 +02:00
parent a5dd31afeb
commit e4ce9bd7af
1 changed files with 11 additions and 3 deletions
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14
src/devices/nm-device.c
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@@ -7566,15 +7566,23 @@ ip_config_merge_and_apply (NMDevice *self,
} }
if (!IS_IPv4) { if (!IS_IPv4) {
const NMPlatformLink *link;
NMUtilsIPv6IfaceId iid; NMUtilsIPv6IfaceId iid;
NMPlatform *platform;
int ifindex;
if ( commit if ( commit
&& priv->ndisc_started && priv->ndisc_started
&& ip6_addr_gen_token && ip6_addr_gen_token
&& nm_utils_ipv6_interface_identifier_get_from_token (&iid, ip6_addr_gen_token)) { && nm_utils_ipv6_interface_identifier_get_from_token (&iid, ip6_addr_gen_token)) {
nm_platform_link_set_ipv6_token (nm_device_get_platform (self), platform = nm_device_get_platform (self);
nm_device_get_ip_ifindex (self), ifindex = nm_device_get_ip_ifindex (self);
iid); link = nm_platform_link_get (platform, ifindex);
if (link && link->inet6_token.id == iid.id)
_LOGT (LOGD_DEVICE | LOGD_IP6, "token %s already set", ip6_addr_gen_token);
else
nm_platform_link_set_ipv6_token (platform, ifindex, iid);
} }
} }