17 bool link_ipv6ll_enabled(Link *link) {  in link_ipv6ll_enabled()  argument
18         assert(link);  in link_ipv6ll_enabled()
23         if (link->flags & IFF_LOOPBACK)  in link_ipv6ll_enabled()
26         if (!link->network)  in link_ipv6ll_enabled()
29         if (link->iftype == ARPHRD_CAN)  in link_ipv6ll_enabled()
32         if (STRPTR_IN_SET(link->kind, "vrf", "wireguard", "ipip", "gre", "sit", "vti", "nlmon"))  in link_ipv6ll_enabled()
35         if (link->network->bond)  in link_ipv6ll_enabled()
38         return link->network->link_local & ADDRESS_FAMILY_IPV6;  in link_ipv6ll_enabled()
41 bool link_may_have_ipv6ll(Link *link) {  in link_may_have_ipv6ll()  argument
42         assert(link);  in link_may_have_ipv6ll()
55         if (link_ipv6ll_enabled(link))  in link_may_have_ipv6ll()
59         if (streq_ptr(link->kind, "wireguard")) {  in link_may_have_ipv6ll()
62                 if (!link->network)  in link_may_have_ipv6ll()
65                 ORDERED_HASHMAP_FOREACH(a, link->network->addresses_by_section) {  in link_may_have_ipv6ll()
78 IPv6LinkLocalAddressGenMode link_get_ipv6ll_addrgen_mode(Link *link) {  in link_get_ipv6ll_addrgen_mode()  argument
79         assert(link);  in link_get_ipv6ll_addrgen_mode()
81         if (!link_ipv6ll_enabled(link))  in link_get_ipv6ll_addrgen_mode()
84         if (link->network->ipv6ll_address_gen_mode >= 0)  in link_get_ipv6ll_addrgen_mode()
85                 return link->network->ipv6ll_address_gen_mode;  in link_get_ipv6ll_addrgen_mode()
87         if (in6_addr_is_set(&link->network->ipv6ll_stable_secret))  in link_get_ipv6ll_addrgen_mode()
122 int link_update_ipv6ll_addrgen_mode(Link *link, sd_netlink_message *message) {  in link_update_ipv6ll_addrgen_mode()  argument
126         assert(link);  in link_update_ipv6ll_addrgen_mode()
148         mode = (uint8_t) link->ipv6ll_address_gen_mode;  in link_update_ipv6ll_addrgen_mode()
161         if (mode == (uint8_t) link->ipv6ll_address_gen_mode)  in link_update_ipv6ll_addrgen_mode()
165 …log_link_debug(link, "Received invalid IPv6 link-local address generation mode (%u), ignoring.", m…  in link_update_ipv6ll_addrgen_mode()
169         if (link->ipv6ll_address_gen_mode < 0)  in link_update_ipv6ll_addrgen_mode()
170                 log_link_debug(link, "Saved IPv6 link-local address generation mode: %s",  in link_update_ipv6ll_addrgen_mode()
173                 log_link_debug(link, "IPv6 link-local address generation mode is changed: %s -> %s",  in link_update_ipv6ll_addrgen_mode()
174 …                         ipv6_link_local_address_gen_mode_to_string(link->ipv6ll_address_gen_mode),  in link_update_ipv6ll_addrgen_mode()
177         link->ipv6ll_address_gen_mode = mode;  in link_update_ipv6ll_addrgen_mode()
184 int link_set_ipv6ll_stable_secret(Link *link) {  in link_set_ipv6ll_stable_secret()  argument
189         assert(link);  in link_set_ipv6ll_stable_secret()
190         assert(link->network);  in link_set_ipv6ll_stable_secret()
192 …    if (link->network->ipv6ll_address_gen_mode != IPV6_LINK_LOCAL_ADDRESSS_GEN_MODE_STABLE_PRIVACY)  in link_set_ipv6ll_stable_secret()
195         if (in6_addr_is_set(&link->network->ipv6ll_stable_secret))  in link_set_ipv6ll_stable_secret()
196                 a = link->network->ipv6ll_stable_secret;  in link_set_ipv6ll_stable_secret()
205                         return log_link_debug_errno(link, r, "Failed to generate key: %m");  in link_set_ipv6ll_stable_secret()
207                 v = htole64(siphash24_string(link->ifname, key.bytes));  in link_set_ipv6ll_stable_secret()
212                         return log_link_debug_errno(link, r, "Failed to generate key: %m");  in link_set_ipv6ll_stable_secret()
214                 v = htole64(siphash24_string(link->ifname, key.bytes));  in link_set_ipv6ll_stable_secret()
223         return sysctl_write_ip_property(AF_INET6, link->ifname, "stable_secret", str);  in link_set_ipv6ll_stable_secret()
226 int link_set_ipv6ll_addrgen_mode(Link *link, IPv6LinkLocalAddressGenMode mode) {  in link_set_ipv6ll_addrgen_mode()  argument
227         assert(link);  in link_set_ipv6ll_addrgen_mode()
230         if (mode == link->ipv6ll_address_gen_mode)  in link_set_ipv6ll_addrgen_mode()
233         return sysctl_write_ip_property_uint32(AF_INET6, link->ifname, "addr_gen_mode", mode);  in link_set_ipv6ll_addrgen_mode()