23 static int generic_handler(sd_netlink *rtnl, sd_netlink_message *m, void *userdata) {  in generic_handler()  argument
45 static int start_loopback(sd_netlink *rtnl, struct state *s) {  in start_loopback()  argument
49         assert(rtnl);  in start_loopback()
52         r = sd_rtnl_message_new_link(rtnl, &req, RTM_SETLINK, LOOPBACK_IFINDEX);  in start_loopback()
60 …r = sd_netlink_call_async(rtnl, NULL, req, generic_handler, NULL, s, LOOPBACK_SETUP_TIMEOUT_USEC, …  in start_loopback()
68 static int add_ipv4_address(sd_netlink *rtnl, struct state *s) {  in add_ipv4_address()  argument
72         assert(rtnl);  in add_ipv4_address()
75         r = sd_rtnl_message_new_addr(rtnl, &req, RTM_NEWADDR, LOOPBACK_IFINDEX, AF_INET);  in add_ipv4_address()
95 …r = sd_netlink_call_async(rtnl, NULL, req, generic_handler, NULL, s, USEC_INFINITY, "systemd-loopb…  in add_ipv4_address()
103 static int add_ipv6_address(sd_netlink *rtnl, struct state *s) {  in add_ipv6_address()  argument
107         assert(rtnl);  in add_ipv6_address()
110         r = sd_rtnl_message_new_addr(rtnl, &req, RTM_NEWADDR, LOOPBACK_IFINDEX, AF_INET6);  in add_ipv6_address()
130 …r = sd_netlink_call_async(rtnl, NULL, req, generic_handler, NULL, s, USEC_INFINITY, "systemd-loopb…  in add_ipv6_address()
138 static bool check_loopback(sd_netlink *rtnl) {  in check_loopback()  argument
143         r = sd_rtnl_message_new_link(rtnl, &req, RTM_GETLINK, LOOPBACK_IFINDEX);  in check_loopback()
147         r = sd_netlink_call(rtnl, req, USEC_INFINITY, &reply);  in check_loopback()
159         _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL;  in loopback_setup()
174         r = sd_netlink_open(&rtnl);  in loopback_setup()
184         r = add_ipv4_address(rtnl, &state_4);  in loopback_setup()
188         r = add_ipv6_address(rtnl, &state_6);  in loopback_setup()
192         r = start_loopback(rtnl, &state_up);  in loopback_setup()
197                 r = sd_netlink_wait(rtnl, LOOPBACK_SETUP_TIMEOUT_USEC);  in loopback_setup()
201                 r = sd_netlink_process(rtnl, NULL);  in loopback_setup()
211                 if (state_up.rcode == -EPERM && check_loopback(rtnl))  in loopback_setup()