30 static bool link_lldp_rx_enabled(Link *link) {  in link_lldp_rx_enabled()  argument
31         assert(link);  in link_lldp_rx_enabled()
33         if (link->flags & IFF_LOOPBACK)  in link_lldp_rx_enabled()
36         if (link->iftype != ARPHRD_ETHER)  in link_lldp_rx_enabled()
39         if (!link->network)  in link_lldp_rx_enabled()
45         if (link->kind && STR_IN_SET(link->kind, "bridge", "bond"))  in link_lldp_rx_enabled()
48         return link->network->lldp_mode != LLDP_MODE_NO;  in link_lldp_rx_enabled()
52         Link *link = userdata;  in lldp_rx_handler()  local
55         assert(link);  in lldp_rx_handler()
57         (void) link_lldp_save(link);  in lldp_rx_handler()
59         if (link->lldp_tx && event == SD_LLDP_RX_EVENT_ADDED) {  in lldp_rx_handler()
62 …log_link_debug(link, "Received LLDP datagram from previously unknown neighbor, restarting 'fast' L…  in lldp_rx_handler()
64                 (void) sd_lldp_tx_stop(link->lldp_tx);  in lldp_rx_handler()
65                 r = sd_lldp_tx_start(link->lldp_tx);  in lldp_rx_handler()
67                         log_link_warning_errno(link, r, "Failed to restart LLDP transmission: %m");  in lldp_rx_handler()
71 int link_lldp_rx_configure(Link *link) {  in link_lldp_rx_configure()  argument
74         if (!link_lldp_rx_enabled(link))  in link_lldp_rx_configure()
77         if (link->lldp_rx)  in link_lldp_rx_configure()
80         r = sd_lldp_rx_new(&link->lldp_rx);  in link_lldp_rx_configure()
84         r = sd_lldp_rx_attach_event(link->lldp_rx, link->manager->event, 0);  in link_lldp_rx_configure()
88         r = sd_lldp_rx_set_ifindex(link->lldp_rx, link->ifindex);  in link_lldp_rx_configure()
92         r = sd_lldp_rx_match_capabilities(link->lldp_rx,  in link_lldp_rx_configure()
93                                           link->network->lldp_mode == LLDP_MODE_ROUTERS_ONLY ?  in link_lldp_rx_configure()
99         r = sd_lldp_rx_set_filter_address(link->lldp_rx, &link->hw_addr.ether);  in link_lldp_rx_configure()
103         r = sd_lldp_rx_set_callback(link->lldp_rx, lldp_rx_handler, link);  in link_lldp_rx_configure()
110 int link_lldp_save(Link *link) {  in link_lldp_save()  argument
116         assert(link);  in link_lldp_save()
118         if (isempty(link->lldp_file))  in link_lldp_save()
121         if (!link->lldp_rx) {  in link_lldp_save()
122                 (void) unlink(link->lldp_file);  in link_lldp_save()
126         r = sd_lldp_rx_get_neighbors(link->lldp_rx, &l);  in link_lldp_save()
130                 (void) unlink(link->lldp_file);  in link_lldp_save()
136         r = fopen_temporary(link->lldp_file, &f, &temp_path);  in link_lldp_save()
160         r = conservative_rename(temp_path, link->lldp_file);  in link_lldp_save()
166 …              log_link_error_errno(link, r, "Failed to save LLDP data to %s: %m", link->lldp_file);  in link_lldp_save()