Line data Source code
1 : /* SPDX-License-Identifier: LGPL-2.1+ */ 2 : 3 : #include "alloc-util.h" 4 : #include "fd-util.h" 5 : #include "network-util.h" 6 : #include "string-table.h" 7 : #include "strv.h" 8 : 9 0 : bool network_is_online(void) { 10 0 : _cleanup_free_ char *carrier_state = NULL, *addr_state = NULL; 11 : int r; 12 : 13 0 : r = sd_network_get_carrier_state(&carrier_state); 14 0 : if (r < 0) /* if we don't know anything, we consider the system online */ 15 0 : return true; 16 : 17 0 : r = sd_network_get_address_state(&addr_state); 18 0 : if (r < 0) /* if we don't know anything, we consider the system online */ 19 0 : return true; 20 : 21 0 : if (STR_IN_SET(carrier_state, "degraded-carrier", "carrier") && 22 0 : STR_IN_SET(addr_state, "routable", "degraded")) 23 0 : return true; 24 : 25 0 : return false; 26 : } 27 : 28 : static const char* const link_operstate_table[_LINK_OPERSTATE_MAX] = { 29 : [LINK_OPERSTATE_OFF] = "off", 30 : [LINK_OPERSTATE_NO_CARRIER] = "no-carrier", 31 : [LINK_OPERSTATE_DORMANT] = "dormant", 32 : [LINK_OPERSTATE_DEGRADED_CARRIER] = "degraded-carrier", 33 : [LINK_OPERSTATE_CARRIER] = "carrier", 34 : [LINK_OPERSTATE_DEGRADED] = "degraded", 35 : [LINK_OPERSTATE_ENSLAVED] = "enslaved", 36 : [LINK_OPERSTATE_ROUTABLE] = "routable", 37 : }; 38 : 39 20 : DEFINE_STRING_TABLE_LOOKUP(link_operstate, LinkOperationalState); 40 : 41 : static const char* const link_carrier_state_table[_LINK_CARRIER_STATE_MAX] = { 42 : [LINK_CARRIER_STATE_OFF] = "off", 43 : [LINK_CARRIER_STATE_NO_CARRIER] = "no-carrier", 44 : [LINK_CARRIER_STATE_DORMANT] = "dormant", 45 : [LINK_CARRIER_STATE_DEGRADED_CARRIER] = "degraded-carrier", 46 : [LINK_CARRIER_STATE_CARRIER] = "carrier", 47 : [LINK_CARRIER_STATE_ENSLAVED] = "enslaved", 48 : }; 49 : 50 0 : DEFINE_STRING_TABLE_LOOKUP(link_carrier_state, LinkCarrierState); 51 : 52 : static const char* const link_address_state_table[_LINK_ADDRESS_STATE_MAX] = { 53 : [LINK_ADDRESS_STATE_OFF] = "off", 54 : [LINK_ADDRESS_STATE_DEGRADED] = "degraded", 55 : [LINK_ADDRESS_STATE_ROUTABLE] = "routable", 56 : }; 57 : 58 0 : DEFINE_STRING_TABLE_LOOKUP(link_address_state, LinkAddressState);