106 lines
3.5 KiB
C
106 lines
3.5 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
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#include "alloc-util.h"
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#include "fd-util.h"
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#include "network-util.h"
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#include "string-table.h"
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#include "strv.h"
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bool network_is_online(void) {
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_cleanup_free_ char *carrier_state = NULL, *addr_state = NULL;
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int r;
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r = sd_network_get_carrier_state(&carrier_state);
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if (r < 0) /* if we don't know anything, we consider the system online */
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return true;
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r = sd_network_get_address_state(&addr_state);
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if (r < 0) /* if we don't know anything, we consider the system online */
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return true;
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if (STR_IN_SET(carrier_state, "degraded-carrier", "carrier") &&
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STR_IN_SET(addr_state, "routable", "degraded"))
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return true;
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return false;
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}
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static const char* const link_operstate_table[_LINK_OPERSTATE_MAX] = {
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[LINK_OPERSTATE_MISSING] = "missing",
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[LINK_OPERSTATE_OFF] = "off",
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[LINK_OPERSTATE_NO_CARRIER] = "no-carrier",
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[LINK_OPERSTATE_DORMANT] = "dormant",
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[LINK_OPERSTATE_DEGRADED_CARRIER] = "degraded-carrier",
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[LINK_OPERSTATE_CARRIER] = "carrier",
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[LINK_OPERSTATE_DEGRADED] = "degraded",
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[LINK_OPERSTATE_ENSLAVED] = "enslaved",
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[LINK_OPERSTATE_ROUTABLE] = "routable",
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};
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DEFINE_STRING_TABLE_LOOKUP(link_operstate, LinkOperationalState);
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static const char* const link_carrier_state_table[_LINK_CARRIER_STATE_MAX] = {
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[LINK_CARRIER_STATE_OFF] = "off",
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[LINK_CARRIER_STATE_NO_CARRIER] = "no-carrier",
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[LINK_CARRIER_STATE_DORMANT] = "dormant",
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[LINK_CARRIER_STATE_DEGRADED_CARRIER] = "degraded-carrier",
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[LINK_CARRIER_STATE_CARRIER] = "carrier",
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[LINK_CARRIER_STATE_ENSLAVED] = "enslaved",
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};
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DEFINE_STRING_TABLE_LOOKUP(link_carrier_state, LinkCarrierState);
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static const char* const link_address_state_table[_LINK_ADDRESS_STATE_MAX] = {
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[LINK_ADDRESS_STATE_OFF] = "off",
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[LINK_ADDRESS_STATE_DEGRADED] = "degraded",
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[LINK_ADDRESS_STATE_ROUTABLE] = "routable",
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};
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DEFINE_STRING_TABLE_LOOKUP(link_address_state, LinkAddressState);
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int parse_operational_state_range(const char *str, LinkOperationalStateRange *out) {
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LinkOperationalStateRange range = { _LINK_OPERSTATE_INVALID, _LINK_OPERSTATE_INVALID };
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_cleanup_free_ const char *min = NULL;
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const char *p;
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assert(str);
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assert(out);
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p = strchr(str, ':');
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if (p) {
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min = strndup(str, p - str);
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if (!isempty(p + 1)) {
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range.max = link_operstate_from_string(p + 1);
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if (range.max < 0)
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return -EINVAL;
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}
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} else
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min = strdup(str);
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if (!min)
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return -ENOMEM;
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if (!isempty(min)) {
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range.min = link_operstate_from_string(min);
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if (range.min < 0)
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return -EINVAL;
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}
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/* Fail on empty strings. */
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if (range.min == _LINK_OPERSTATE_INVALID && range.max == _LINK_OPERSTATE_INVALID)
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return -EINVAL;
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if (range.min == _LINK_OPERSTATE_INVALID)
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range.min = LINK_OPERSTATE_MISSING;
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if (range.max == _LINK_OPERSTATE_INVALID)
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range.max = LINK_OPERSTATE_ROUTABLE;
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if (range.min > range.max)
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return -EINVAL;
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*out = range;
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return 0;
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}
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