return &link->manager->duid;
}
+int link_sysctl_ipv6_enabled(Link *link) {
+ _cleanup_free_ char *value = NULL;
+ int r;
+
+ r = sysctl_read_ip_property(AF_INET6, link->ifname, "disable_ipv6", &value);
+ if (r < 0)
+ return log_link_warning_errno(link, r,
+ "Failed to read net.ipv6.conf.%s.disable_ipv6 sysctl property: %m",
+ link->ifname);
+
+ link->sysctl_ipv6_enabled = value[0] == '0';
+ return link->sysctl_ipv6_enabled;
+}
+
static bool link_dhcp6_enabled(Link *link) {
assert(link);
if (STRPTR_IN_SET(link->kind, "can", "vcan", "vxcan"))
return false;
- if (manager_sysctl_ipv6_enabled(link->manager) == 0)
+ if (link_sysctl_ipv6_enabled(link) == 0)
return false;
return link->network->dhcp & ADDRESS_FAMILY_IPV6;
if (link->network->bond)
return false;
- if (manager_sysctl_ipv6_enabled(link->manager) == 0)
+ if (link_sysctl_ipv6_enabled(link) == 0)
return false;
return link->network->link_local & ADDRESS_FAMILY_IPV6;
if (link->network->bond)
return false;
- if (manager_sysctl_ipv6_enabled(link->manager) == 0)
+ if (link_sysctl_ipv6_enabled(link) == 0)
return false;
if (STRPTR_IN_SET(link->kind, "can", "vcan", "vxcan"))
if (link->network->ip_forward == _ADDRESS_FAMILY_BOOLEAN_INVALID)
return false;
- if (manager_sysctl_ipv6_enabled(link->manager) == 0)
+ if (link_sysctl_ipv6_enabled(link) == 0)
return false;
return link->network->ip_forward & ADDRESS_FAMILY_IPV6;
.rtnl_extended_attrs = true,
.ifindex = ifindex,
.iftype = iftype,
+ .sysctl_ipv6_enabled = -1,
};
link->ifname = strdup(ifname);
if (!link->routing_policy_rules_configured)
return;
- if (link_ipv4ll_enabled(link, ADDRESS_FAMILY_IPV4) && !(link->ipv4ll_address && link->ipv4ll_route))
- return;
+ if (link_has_carrier(link) || !link->network->configure_without_carrier) {
- if (link_ipv6ll_enabled(link) &&
- in_addr_is_null(AF_INET6, (const union in_addr_union*) &link->ipv6ll_address))
- return;
+ if (link_ipv4ll_enabled(link, ADDRESS_FAMILY_IPV4) && !(link->ipv4ll_address && link->ipv4ll_route))
+ return;
- if ((link_dhcp4_enabled(link) || link_dhcp6_enabled(link)) &&
- !link->dhcp4_configured &&
- !link->dhcp6_configured &&
- !(link_ipv4ll_enabled(link, ADDRESS_FAMILY_FALLBACK_IPV4) && link->ipv4ll_address && link->ipv4ll_route))
- /* When DHCP is enabled, at least one protocol must provide an address, or
- * an IPv4ll fallback address must be configured. */
- return;
+ if (link_ipv6ll_enabled(link) &&
+ in_addr_is_null(AF_INET6, (const union in_addr_union*) &link->ipv6ll_address))
+ return;
- if (link_ipv6_accept_ra_enabled(link) && !link->ndisc_configured)
- return;
+ if ((link_dhcp4_enabled(link) || link_dhcp6_enabled(link)) &&
+ !link->dhcp4_configured &&
+ !link->dhcp6_configured &&
+ !(link_ipv4ll_enabled(link, ADDRESS_FAMILY_FALLBACK_IPV4) && link->ipv4ll_address && link->ipv4ll_route))
+ /* When DHCP is enabled, at least one protocol must provide an address, or
+ * an IPv4ll fallback address must be configured. */
+ return;
+
+ if (link_ipv6_accept_ra_enabled(link) && !link->ndisc_configured)
+ return;
+ }
if (link->state != LINK_STATE_CONFIGURED)
link_enter_configured(link);