resolve: rename PrivateDNS to DNSOverTLS

PrivateDNS is not considered a good name for this option, so rename it to DNSOverTLS
This commit is contained in:
Iwan Timmer 2018-06-13 20:26:24 +02:00 committed by Lennart Poettering
parent d122ed1ba8
commit c9299be2f5
31 changed files with 137 additions and 137 deletions

4
NEWS
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@ -52,8 +52,8 @@ CHANGES WITH 239 in spe:
screen resolution for HiDPI systems, and now provides loader
configuration settings to change the resolution explicitly.
* systemd-resolved now supports DNS-over-TLS ("PrivateDNS"). It's still
turned off by default, use PrivateDNS=opportunistic to turn it on in
* systemd-resolved now supports DNS-over-TLS. It's still
turned off by default, use DNSOverTLS=opportunistic to turn it on in
resolved.conf. We intend to make this the default as soon as couple
of additional techniques for optimizing the initial latency caused by
establishing a TLS/TCP connection are implemented.

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@ -257,7 +257,7 @@
<term><option>llmnr [<replaceable>LINK</replaceable> [<replaceable>MODE</replaceable>]]</option></term>
<term><option>mdns [<replaceable>LINK</replaceable> [<replaceable>MODE</replaceable>]]</option></term>
<term><option>dnssec [<replaceable>LINK</replaceable> [<replaceable>MODE</replaceable>]]</option></term>
<term><option>privatedns [<replaceable>LINK</replaceable> [<replaceable>MODE</replaceable>]]</option></term>
<term><option>dnsovertls [<replaceable>LINK</replaceable> [<replaceable>MODE</replaceable>]]</option></term>
<term><option>nta [<replaceable>LINK</replaceable> [<replaceable>DOMAIN</replaceable>…]]</option></term>
<listitem><para>Get/set per-interface DNS configuration. These commands may be used to configure various DNS
@ -269,8 +269,8 @@
through external means. The <option>dns</option> command expects IPv4 or IPv6 address specifications of DNS
servers to use. The <option>domain</option> command expects valid DNS domains, possibly prefixed with
<literal>~</literal>, and configures a per-interface search or route-only domain. The <option>llmnr</option>,
<option>mdns</option>, <option>dnssec</option> and <option>privatedns</option> commands may be used to configure
the per-interface LLMNR, MulticastDNS, DNSSEC and PrivateDNS settings. Finally, <option>nta</option> command
<option>mdns</option>, <option>dnssec</option> and <option>dnsovertls</option> commands may be used to configure
the per-interface LLMNR, MulticastDNS, DNSSEC and DNSOverTLS settings. Finally, <option>nta</option> command
may be used to configure additional per-interface DNSSEC NTA domains. For details about these settings, their
possible values and their effect, see the corresponding options in
<citerefentry><refentrytitle>systemd.network</refentrytitle><manvolnum>5</manvolnum></citerefentry>.</para>
@ -283,7 +283,7 @@
<listitem><para>Revert the per-interface DNS configuration. If the DNS configuration is reverted all
per-interface DNS setting are reset to their defaults, undoing all effects of <option>dns</option>,
<option>domain</option>, <option>llmnr</option>, <option>mdns</option>, <option>dnssec</option>,
<option>privatedns</option>, <option>nta</option>. Note that when a network interface disappears all
<option>dnsovertls</option>, <option>nta</option>. Note that when a network interface disappears all
configuration is lost automatically, an explicit reverting is not necessary in that case.</para></listitem>
</varlistentry>

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@ -207,7 +207,7 @@
</varlistentry>
<varlistentry>
<term><varname>PrivateDNS=</varname></term>
<term><varname>DNSOverTLS=</varname></term>
<listitem>
<para>Takes false or
<literal>opportunistic</literal>. When set to <literal>opportunistic</literal>
@ -226,10 +226,10 @@
<para>Note as the resolver is not capable of authenticating
the server, it is vulnerable for "man-in-the-middle" attacks.</para>
<para>In addition to this global PrivateDNS setting
<para>In addition to this global DNSOverTLS setting
<citerefentry><refentrytitle>systemd-networkd.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>
also maintains per-link PrivateDNS settings. For system DNS
servers (see above), only the global PrivateDNS setting is in
also maintains per-link DNSOverTLS settings. For system DNS
servers (see above), only the global DNSOverTLS setting is in
effect. For per-link DNS servers the per-link
setting is in effect, unless it is unset in which case the
global setting is used instead.</para>

View File

@ -385,7 +385,7 @@
</listitem>
</varlistentry>
<varlistentry>
<term><varname>PrivateDNS=</varname></term>
<term><varname>DNSOverTLS=</varname></term>
<listitem>
<para>Takes false or
<literal>opportunistic</literal>. When set to <literal>opportunistic</literal>, enables
@ -394,7 +394,7 @@
support on the link. This option defines a
per-interface setting for
<citerefentry><refentrytitle>resolved.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>'s
global <varname>PrivateDNS=</varname> option. Defaults to
global <varname>DNSOverTLS=</varname> option. Defaults to
false. This setting is read by
<citerefentry><refentrytitle>systemd-resolved.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>.</para>
</listitem>

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@ -1137,17 +1137,17 @@ conf.set('DEFAULT_DNSSEC_MODE',
'DNSSEC_' + default_dnssec.underscorify().to_upper())
substs.set('DEFAULT_DNSSEC_MODE', default_dnssec)
default_private_dns = get_option('default-private-dns')
default_dns_over_tls = get_option('default-dns-over-tls')
if fuzzer_build
default_private_dns = 'no'
default_dns_over_tls = 'no'
endif
if default_private_dns != 'no' and conf.get('HAVE_GNUTLS') == 0
message('default-private-dns cannot be set to strict or opportunistic when gnutls is disabled. Setting default-private-dns to no.')
default_private_dns = 'no'
if default_dns_over_tls != 'no' and conf.get('HAVE_GNUTLS') == 0
message('default-dns-over-tls cannot be set to strict or opportunistic when gnutls is disabled. Setting default-dns-over-tls to no.')
default_dns_over_tls = 'no'
endif
conf.set('DEFAULT_PRIVATE_DNS_MODE',
'PRIVATE_DNS_' + default_private_dns.underscorify().to_upper())
substs.set('DEFAULT_PRIVATE_DNS_MODE', default_private_dns)
conf.set('DEFAULT_DNS_OVER_TLS_MODE',
'DNS_OVER_TLS_' + default_dns_over_tls.underscorify().to_upper())
substs.set('DEFAULT_DNS_OVER_TLS_MODE', default_dns_over_tls)
want_importd = get_option('importd')
if want_importd != 'false'
@ -2870,7 +2870,7 @@ status = [
'symbolic gateway hostnames: @0@'.format(', '.join(gateway_hostnames)),
'default DNSSEC mode: @0@'.format(default_dnssec),
'default private DNS mode: @0@'.format(default_private_dns),
'default DNS-over-TLS mode: @0@'.format(default_dns_over_tls),
'default cgroup hierarchy: @0@'.format(default_hierarchy),
'default KillUserProcesses setting: @0@'.format(kill_user_processes)]

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@ -193,8 +193,8 @@ option('default-dnssec', type : 'combo',
description : 'default DNSSEC mode',
choices : ['yes', 'allow-downgrade', 'no'],
value : 'allow-downgrade')
option('default-private-dns', type : 'combo',
description : 'default private DNS mode',
option('default-dns-over-tls', type : 'combo',
description : 'default DNS-over-TLS mode',
choices : ['opportunistic', 'no'],
value : 'no')
option('dns-servers', type : 'string',

View File

@ -48,14 +48,14 @@ _resolvectl() {
[LINK]='revert dns domain nta'
[RESOLVE]='llmnr mdns'
[DNSSEC]='dnssec'
[PRIVATEDNS]='privatedns'
[DNSOVERTLS]='dnsovertls'
[STANDALONE]='statistics reset-statistics flush-caches reset-server-features'
)
local -A ARGS=(
[FAMILY]='tcp udp sctp'
[RESOLVE]='yes no resolve'
[DNSSEC]='yes no allow-downgrade'
[PRIVATEDNS]='no opportunistic'
[DNSOVERTLS]='no opportunistic'
)
local interfaces=$( __get_interfaces )
@ -111,7 +111,7 @@ _resolvectl() {
comps=""
fi
elif __contains_word "$verb" ${VERBS[LINK]} ${VERBS[RESOLVE]} ${VERBS[DNSSEC]} ${VERBS[PRIVATEDNS]}; then
elif __contains_word "$verb" ${VERBS[LINK]} ${VERBS[RESOLVE]} ${VERBS[DNSSEC]} ${VERBS[DNSOVERTLS]}; then
for ((i++; i < COMP_CWORD; i++)); do
if __contains_word "${COMP_WORDS[i]}" $interfaces &&
! __contains_word "${COMP_WORDS[i-1]}" ${OPTS[ARG]}; then
@ -155,10 +155,10 @@ _resolvectl() {
comps=''
fi
elif __contains_word "$verb" ${VERBS[PRIVATEDNS]}; then
elif __contains_word "$verb" ${VERBS[DNSOVERTLS]}; then
name=
for ((i++; i < COMP_CWORD; i++)); do
if __contains_word "${COMP_WORDS[i]}" ${ARGS[PRIVATEDNS]} &&
if __contains_word "${COMP_WORDS[i]}" ${ARGS[DNSOVERTLS]} &&
! __contains_word "${COMP_WORDS[i-1]}" ${OPTS[ARG]}; then
name=${COMP_WORDS[i]}
break;
@ -166,7 +166,7 @@ _resolvectl() {
done
if [[ -z $name ]]; then
comps=${ARGS[PRIVATEDNS]}
comps=${ARGS[DNSOVERTLS]}
else
comps=''
fi

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@ -65,7 +65,7 @@ _systemd-resolve() {
--set-dnssec)
comps="yes no allow-downgrade"
;;
--set-privatedns)
--set-dnsovertls)
comps="no opportunistic"
;;
esac

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@ -178,8 +178,8 @@ _public_ int sd_network_link_get_mdns(int ifindex, char **mdns) {
return network_link_get_string(ifindex, "MDNS", mdns);
}
_public_ int sd_network_link_get_private_dns(int ifindex, char **private_dns) {
return network_link_get_string(ifindex, "PRIVATE_DNS", private_dns);
_public_ int sd_network_link_get_dns_over_tls(int ifindex, char **dns_over_tls) {
return network_link_get_string(ifindex, "DNS_OVER_TLS", dns_over_tls);
}
_public_ int sd_network_link_get_dnssec(int ifindex, char **dnssec) {

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@ -3762,9 +3762,9 @@ int link_save(Link *link) {
fprintf(f, "MDNS=%s\n",
resolve_support_to_string(link->network->mdns));
if (link->network->private_dns_mode != _PRIVATE_DNS_MODE_INVALID)
fprintf(f, "PRIVATE_DNS=%s\n",
private_dns_mode_to_string(link->network->private_dns_mode));
if (link->network->dns_over_tls_mode != _DNS_OVER_TLS_MODE_INVALID)
fprintf(f, "DNS_OVER_TLS=%s\n",
dns_over_tls_mode_to_string(link->network->dns_over_tls_mode));
if (link->network->dnssec_mode != _DNSSEC_MODE_INVALID)
fprintf(f, "DNSSEC=%s\n",

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@ -60,7 +60,7 @@ Network.Domains, config_parse_domains,
Network.DNS, config_parse_dns, 0, 0
Network.LLMNR, config_parse_resolve_support, 0, offsetof(Network, llmnr)
Network.MulticastDNS, config_parse_resolve_support, 0, offsetof(Network, mdns)
Network.PrivateDNS, config_parse_private_dns_mode, 0, offsetof(Network, private_dns_mode)
Network.DNSOverTLS, config_parse_dns_over_tls_mode, 0, offsetof(Network, dns_over_tls_mode)
Network.DNSSEC, config_parse_dnssec_mode, 0, offsetof(Network, dnssec_mode)
Network.DNSSECNegativeTrustAnchors, config_parse_dnssec_negative_trust_anchors, 0, 0
Network.NTP, config_parse_ntp, 0, offsetof(Network, ntp)

View File

@ -236,7 +236,7 @@ static int network_load_one(Manager *manager, const char *filename) {
network->llmnr = RESOLVE_SUPPORT_YES;
network->mdns = RESOLVE_SUPPORT_NO;
network->dnssec_mode = _DNSSEC_MODE_INVALID;
network->private_dns_mode = _PRIVATE_DNS_MODE_INVALID;
network->dns_over_tls_mode = _DNS_OVER_TLS_MODE_INVALID;
network->link_local = ADDRESS_FAMILY_IPV6;

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@ -261,7 +261,7 @@ struct Network {
ResolveSupport llmnr;
ResolveSupport mdns;
DnssecMode dnssec_mode;
PrivateDnsMode private_dns_mode;
DnsOverTlsMode dns_over_tls_mode;
Set *dnssec_negative_trust_anchors;
LIST_FIELDS(Network, networks);

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@ -56,7 +56,7 @@ char **arg_set_dns = NULL;
char **arg_set_domain = NULL;
static const char *arg_set_llmnr = NULL;
static const char *arg_set_mdns = NULL;
static const char *arg_set_private_dns = NULL;
static const char *arg_set_dns_over_tls = NULL;
static const char *arg_set_dnssec = NULL;
static char **arg_set_nta = NULL;
@ -1339,7 +1339,7 @@ static int status_ifindex(sd_bus *bus, int ifindex, const char *name, StatusMode
uint64_t scopes_mask;
const char *llmnr;
const char *mdns;
const char *private_dns;
const char *dns_over_tls;
const char *dnssec;
char *current_dns;
char **dns;
@ -1355,7 +1355,7 @@ static int status_ifindex(sd_bus *bus, int ifindex, const char *name, StatusMode
{ "Domains", "a(sb)", map_link_domains, offsetof(struct link_info, domains) },
{ "LLMNR", "s", NULL, offsetof(struct link_info, llmnr) },
{ "MulticastDNS", "s", NULL, offsetof(struct link_info, mdns) },
{ "PrivateDNS", "s", NULL, offsetof(struct link_info, private_dns) },
{ "DNSOverTLS", "s", NULL, offsetof(struct link_info, dns_over_tls) },
{ "DNSSEC", "s", NULL, offsetof(struct link_info, dnssec) },
{ "DNSSECNegativeTrustAnchors", "as", NULL, offsetof(struct link_info, ntas) },
{ "DNSSECSupported", "b", NULL, offsetof(struct link_info, dnssec_supported) },
@ -1437,7 +1437,7 @@ static int status_ifindex(sd_bus *bus, int ifindex, const char *name, StatusMode
if (mode == STATUS_PRIVATE) {
printf("%sLink %i (%s)%s: %s\n",
ansi_highlight(), ifindex, name, ansi_normal(),
strna(link_info.private_dns));
strna(link_info.dns_over_tls));
r = 0;
goto finish;
@ -1470,12 +1470,12 @@ static int status_ifindex(sd_bus *bus, int ifindex, const char *name, StatusMode
printf(" LLMNR setting: %s\n"
"MulticastDNS setting: %s\n"
" PrivateDNS setting: %s\n"
" DNSOverTLS setting: %s\n"
" DNSSEC setting: %s\n"
" DNSSEC supported: %s\n",
strna(link_info.llmnr),
strna(link_info.mdns),
strna(link_info.private_dns),
strna(link_info.dns_over_tls),
strna(link_info.dnssec),
yes_no(link_info.dnssec_supported));
@ -1617,7 +1617,7 @@ static int status_global(sd_bus *bus, StatusMode mode, bool *empty_line) {
char **ntas;
const char *llmnr;
const char *mdns;
const char *private_dns;
const char *dns_over_tls;
const char *dnssec;
bool dnssec_supported;
} global_info = {};
@ -1630,7 +1630,7 @@ static int status_global(sd_bus *bus, StatusMode mode, bool *empty_line) {
{ "DNSSECNegativeTrustAnchors", "as", NULL, offsetof(struct global_info, ntas) },
{ "LLMNR", "s", NULL, offsetof(struct global_info, llmnr) },
{ "MulticastDNS", "s", NULL, offsetof(struct global_info, mdns) },
{ "PrivateDNS", "s", NULL, offsetof(struct global_info, private_dns) },
{ "DNSOverTLS", "s", NULL, offsetof(struct global_info, dns_over_tls) },
{ "DNSSEC", "s", NULL, offsetof(struct global_info, dnssec) },
{ "DNSSECSupported", "b", NULL, offsetof(struct global_info, dnssec_supported) },
{}
@ -1692,7 +1692,7 @@ static int status_global(sd_bus *bus, StatusMode mode, bool *empty_line) {
if (mode == STATUS_PRIVATE) {
printf("%sGlobal%s: %s\n", ansi_highlight(), ansi_normal(),
strna(global_info.private_dns));
strna(global_info.dns_over_tls));
r = 0;
goto finish;
@ -1710,12 +1710,12 @@ static int status_global(sd_bus *bus, StatusMode mode, bool *empty_line) {
printf(" LLMNR setting: %s\n"
"MulticastDNS setting: %s\n"
" PrivateDNS setting: %s\n"
" DNSOverTLS setting: %s\n"
" DNSSEC setting: %s\n"
" DNSSEC supported: %s\n",
strna(global_info.llmnr),
strna(global_info.mdns),
strna(global_info.private_dns),
strna(global_info.dns_over_tls),
strna(global_info.dnssec),
yes_no(global_info.dnssec_supported));
@ -2108,7 +2108,7 @@ static int verb_mdns(int argc, char **argv, void *userdata) {
return 0;
}
static int verb_private_dns(int argc, char **argv, void *userdata) {
static int verb_dns_over_tls(int argc, char **argv, void *userdata) {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
sd_bus *bus = userdata;
int ifindex, r;
@ -2134,7 +2134,7 @@ static int verb_private_dns(int argc, char **argv, void *userdata) {
"org.freedesktop.resolve1",
"/org/freedesktop/resolve1",
"org.freedesktop.resolve1.Manager",
"SetLinkPrivateDNS",
"SetLinkDNSOverTLS",
&error,
NULL,
"is", ifindex, argv[2]);
@ -2146,7 +2146,7 @@ static int verb_private_dns(int argc, char **argv, void *userdata) {
sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_LINK))
return 0;
return log_error_errno(r, "Failed to set PrivateDNS configuration: %s", bus_error_message(&error, r));
return log_error_errno(r, "Failed to set DNSOverTLS configuration: %s", bus_error_message(&error, r));
}
return 0;
@ -2354,7 +2354,7 @@ static void compat_help(void) {
" --set-domain=DOMAIN Set per-interface search domain\n"
" --set-llmnr=MODE Set per-interface LLMNR mode\n"
" --set-mdns=MODE Set per-interface MulticastDNS mode\n"
" --set-privatedns=MODE Set per-interface PrivateDNS mode\n"
" --set-dnsovertls=MODE Set per-interface DNS-over-TLS mode\n"
" --set-dnssec=MODE Set per-interface DNSSEC mode\n"
" --set-nta=DOMAIN Set per-interface DNSSEC NTA\n"
" --revert Revert per-interface configuration\n"
@ -2398,7 +2398,7 @@ static void native_help(void) {
" domain [LINK [DOMAIN...]] Get/set per-interface search domain\n"
" llmnr [LINK [MODE]] Get/set per-interface LLMNR mode\n"
" mdns [LINK [MODE]] Get/set per-interface MulticastDNS mode\n"
" privatedns [LINK [MODE]] Get/set per-interface PrivateDNS mode\n"
" dnsovertls [LINK [MODE]] Get/set per-interface DNS-over-TLS mode\n"
" dnssec [LINK [MODE]] Get/set per-interface DNSSEC mode\n"
" nta [LINK [DOMAIN...]] Get/set per-interface DNSSEC NTA\n"
" revert LINK Revert per-interface configuration\n"
@ -2464,7 +2464,7 @@ static int compat_parse_argv(int argc, char *argv[]) {
{ "set-domain", required_argument, NULL, ARG_SET_DOMAIN },
{ "set-llmnr", required_argument, NULL, ARG_SET_LLMNR },
{ "set-mdns", required_argument, NULL, ARG_SET_MDNS },
{ "set-privatedns", required_argument, NULL, ARG_SET_PRIVATE },
{ "set-dnsovertls", required_argument, NULL, ARG_SET_PRIVATE },
{ "set-dnssec", required_argument, NULL, ARG_SET_DNSSEC },
{ "set-nta", required_argument, NULL, ARG_SET_NTA },
{ "revert", no_argument, NULL, ARG_REVERT_LINK },
@ -2684,7 +2684,7 @@ static int compat_parse_argv(int argc, char *argv[]) {
break;
case ARG_SET_PRIVATE:
arg_set_private_dns = optarg;
arg_set_dns_over_tls = optarg;
arg_mode = MODE_SET_LINK;
break;
@ -2731,7 +2731,7 @@ static int compat_parse_argv(int argc, char *argv[]) {
if (IN_SET(arg_mode, MODE_SET_LINK, MODE_REVERT_LINK)) {
if (arg_ifindex <= 0) {
log_error("--set-dns=, --set-domain=, --set-llmnr=, --set-mdns=, --set-privatedns=, --set-dnssec=, --set-nta= and --revert require --interface=.");
log_error("--set-dns=, --set-domain=, --set-llmnr=, --set-mdns=, --set-dnsovertls=, --set-dnssec=, --set-nta= and --revert require --interface=.");
return -EINVAL;
}
@ -2957,7 +2957,7 @@ static int native_main(int argc, char *argv[], sd_bus *bus) {
{ "domain", VERB_ANY, VERB_ANY, 0, verb_domain },
{ "llmnr", VERB_ANY, 3, 0, verb_llmnr },
{ "mdns", VERB_ANY, 3, 0, verb_mdns },
{ "privatedns", VERB_ANY, 3, 0, verb_private_dns },
{ "dnsovertls", VERB_ANY, 3, 0, verb_dns_over_tls },
{ "dnssec", VERB_ANY, 3, 0, verb_dnssec },
{ "nta", VERB_ANY, VERB_ANY, 0, verb_nta },
{ "revert", 2, 2, 0, verb_revert_link },
@ -3050,8 +3050,8 @@ static int compat_main(int argc, char *argv[], sd_bus *bus) {
return r;
}
if (arg_set_private_dns) {
r = translate("privatedns", arg_ifname, 1, (char **) &arg_set_private_dns, bus);
if (arg_set_dns_over_tls) {
r = translate("dnsovertls", arg_ifname, 1, (char **) &arg_set_dns_over_tls, bus);
if (r < 0)
return r;
}

View File

@ -1471,7 +1471,7 @@ static int bus_property_get_ntas(
static BUS_DEFINE_PROPERTY_GET_ENUM(bus_property_get_dns_stub_listener_mode, dns_stub_listener_mode, DnsStubListenerMode);
static BUS_DEFINE_PROPERTY_GET(bus_property_get_dnssec_supported, "b", Manager, manager_dnssec_supported);
static BUS_DEFINE_PROPERTY_GET2(bus_property_get_dnssec_mode, "s", Manager, manager_get_dnssec_mode, dnssec_mode_to_string);
static BUS_DEFINE_PROPERTY_GET2(bus_property_get_private_dns_mode, "s", Manager, manager_get_private_dns_mode, private_dns_mode_to_string);
static BUS_DEFINE_PROPERTY_GET2(bus_property_get_dns_over_tls_mode, "s", Manager, manager_get_dns_over_tls_mode, dns_over_tls_mode_to_string);
static int bus_method_reset_statistics(sd_bus_message *message, void *userdata, sd_bus_error *error) {
Manager *m = userdata;
@ -1542,8 +1542,8 @@ static int bus_method_set_link_mdns(sd_bus_message *message, void *userdata, sd_
return call_link_method(userdata, message, bus_link_method_set_mdns, error);
}
static int bus_method_set_link_private_dns(sd_bus_message *message, void *userdata, sd_bus_error *error) {
return call_link_method(userdata, message, bus_link_method_set_private_dns, error);
static int bus_method_set_link_dns_over_tls(sd_bus_message *message, void *userdata, sd_bus_error *error) {
return call_link_method(userdata, message, bus_link_method_set_dns_over_tls, error);
}
static int bus_method_set_link_dnssec(sd_bus_message *message, void *userdata, sd_bus_error *error) {
@ -1836,7 +1836,7 @@ static const sd_bus_vtable resolve_vtable[] = {
SD_BUS_PROPERTY("LLMNRHostname", "s", NULL, offsetof(Manager, llmnr_hostname), 0),
SD_BUS_PROPERTY("LLMNR", "s", bus_property_get_resolve_support, offsetof(Manager, llmnr_support), 0),
SD_BUS_PROPERTY("MulticastDNS", "s", bus_property_get_resolve_support, offsetof(Manager, mdns_support), 0),
SD_BUS_PROPERTY("PrivateDNS", "s", bus_property_get_private_dns_mode, 0, 0),
SD_BUS_PROPERTY("DNSOverTLS", "s", bus_property_get_dns_over_tls_mode, 0, 0),
SD_BUS_PROPERTY("DNS", "a(iiay)", bus_property_get_dns_servers, 0, 0),
SD_BUS_PROPERTY("FallbackDNS", "a(iiay)", bus_property_get_fallback_dns_servers, offsetof(Manager, fallback_dns_servers), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("CurrentDNSServer", "(iiay)", bus_property_get_current_dns_server, offsetof(Manager, current_dns_server), 0),
@ -1861,7 +1861,7 @@ static const sd_bus_vtable resolve_vtable[] = {
SD_BUS_METHOD("SetLinkDomains", "ia(sb)", NULL, bus_method_set_link_domains, 0),
SD_BUS_METHOD("SetLinkLLMNR", "is", NULL, bus_method_set_link_llmnr, 0),
SD_BUS_METHOD("SetLinkMulticastDNS", "is", NULL, bus_method_set_link_mdns, 0),
SD_BUS_METHOD("SetLinkPrivateDNS", "is", NULL, bus_method_set_link_private_dns, 0),
SD_BUS_METHOD("SetLinkDNSOverTLS", "is", NULL, bus_method_set_link_dns_over_tls, 0),
SD_BUS_METHOD("SetLinkDNSSEC", "is", NULL, bus_method_set_link_dnssec, 0),
SD_BUS_METHOD("SetLinkDNSSECNegativeTrustAnchors", "ias", NULL, bus_method_set_link_dnssec_negative_trust_anchors, 0),
SD_BUS_METHOD("RevertLink", "i", NULL, bus_method_revert_link, 0),

View File

@ -398,9 +398,9 @@ int manager_parse_config_file(Manager *m) {
#endif
#if ! HAVE_GNUTLS
if (m->private_dns_mode != PRIVATE_DNS_NO) {
log_warning("Private DNS option cannot be set to opportunistic when systemd-resolved is built without gnutls support. Turning off private DNS support.");
m->private_dns_mode = PRIVATE_DNS_NO;
if (m->dns_over_tls_mode != DNS_OVER_TLS_NO) {
log_warning("DNS-over-TLS option cannot be set to opportunistic when systemd-resolved is built without gnutls support. Turning off DNS-over-TLS support.");
m->dns_over_tls_mode = DNS_OVER_TLS_NO;
}
#endif
return 0;

View File

@ -54,15 +54,15 @@ int dns_scope_new(Manager *m, DnsScope **ret, Link *l, DnsProtocol protocol, int
if (l) {
s->dnssec_mode = link_get_dnssec_mode(l);
s->private_dns_mode = link_get_private_dns_mode(l);
s->dns_over_tls_mode = link_get_dns_over_tls_mode(l);
} else {
s->dnssec_mode = manager_get_dnssec_mode(m);
s->private_dns_mode = manager_get_private_dns_mode(m);
s->dns_over_tls_mode = manager_get_dns_over_tls_mode(m);
}
} else {
s->dnssec_mode = DNSSEC_NO;
s->private_dns_mode = PRIVATE_DNS_NO;
s->dns_over_tls_mode = DNS_OVER_TLS_NO;
}
LIST_PREPEND(scopes, m->dns_scopes, s);

View File

@ -35,7 +35,7 @@ struct DnsScope {
DnsProtocol protocol;
int family;
DnssecMode dnssec_mode;
PrivateDnsMode private_dns_mode;
DnsOverTlsMode dns_over_tls_mode;
Link *link;

View File

@ -400,11 +400,11 @@ DnsServerFeatureLevel dns_server_possible_feature_level(DnsServer *s) {
/* Determine the best feature level we care about. If DNSSEC mode is off there's no point in using anything
* better than EDNS0, hence don't even try. */
if (dns_server_get_dnssec_mode(s) != DNSSEC_NO)
best = dns_server_get_private_dns_mode(s) == PRIVATE_DNS_NO ?
best = dns_server_get_dns_over_tls_mode(s) == DNS_OVER_TLS_NO ?
DNS_SERVER_FEATURE_LEVEL_LARGE :
DNS_SERVER_FEATURE_LEVEL_TLS_DO;
else
best = dns_server_get_private_dns_mode(s) == PRIVATE_DNS_NO ?
best = dns_server_get_dns_over_tls_mode(s) == DNS_OVER_TLS_NO ?
DNS_SERVER_FEATURE_LEVEL_EDNS0 :
DNS_SERVER_FEATURE_LEVEL_TLS_PLAIN;
@ -811,13 +811,13 @@ DnssecMode dns_server_get_dnssec_mode(DnsServer *s) {
return manager_get_dnssec_mode(s->manager);
}
PrivateDnsMode dns_server_get_private_dns_mode(DnsServer *s) {
DnsOverTlsMode dns_server_get_dns_over_tls_mode(DnsServer *s) {
assert(s);
if (s->link)
return link_get_private_dns_mode(s->link);
return link_get_dns_over_tls_mode(s->link);
return manager_get_private_dns_mode(s->manager);
return manager_get_dns_over_tls_mode(s->manager);
}
void dns_server_flush_cache(DnsServer *s) {

View File

@ -144,7 +144,7 @@ void manager_next_dns_server(Manager *m);
bool dns_server_address_valid(int family, const union in_addr_union *sa);
DnssecMode dns_server_get_dnssec_mode(DnsServer *s);
PrivateDnsMode dns_server_get_private_dns_mode(DnsServer *s);
DnsOverTlsMode dns_server_get_dns_over_tls_mode(DnsServer *s);
DEFINE_TRIVIAL_CLEANUP_FUNC(DnsServer*, dns_server_unref);

View File

@ -23,6 +23,6 @@ Resolve.Domains, config_parse_search_domains, 0,
Resolve.LLMNR, config_parse_resolve_support, 0, offsetof(Manager, llmnr_support)
Resolve.MulticastDNS, config_parse_resolve_support, 0, offsetof(Manager, mdns_support)
Resolve.DNSSEC, config_parse_dnssec_mode, 0, offsetof(Manager, dnssec_mode)
Resolve.PrivateDNS, config_parse_private_dns_mode, 0, offsetof(Manager, private_dns_mode)
Resolve.DNSOverTLS, config_parse_dns_over_tls_mode, 0, offsetof(Manager, dns_over_tls_mode)
Resolve.Cache, config_parse_bool, 0, offsetof(Manager, enable_cache)
Resolve.DNSStubListener, config_parse_dns_stub_listener_mode, 0, offsetof(Manager, dns_stub_listener_mode)

View File

@ -18,7 +18,7 @@
static BUS_DEFINE_PROPERTY_GET(property_get_dnssec_supported, "b", Link, link_dnssec_supported);
static BUS_DEFINE_PROPERTY_GET2(property_get_dnssec_mode, "s", Link, link_get_dnssec_mode, dnssec_mode_to_string);
static int property_get_private_dns_mode(
static int property_get_dns_over_tls_mode(
sd_bus *bus,
const char *path,
const char *interface,
@ -32,7 +32,7 @@ static int property_get_private_dns_mode(
assert(reply);
assert(l);
return sd_bus_message_append(reply, "s", private_dns_mode_to_string(link_get_private_dns_mode(l)));
return sd_bus_message_append(reply, "s", dns_over_tls_mode_to_string(link_get_dns_over_tls_mode(l)));
}
static int property_get_dns(
@ -419,10 +419,10 @@ int bus_link_method_set_mdns(sd_bus_message *message, void *userdata, sd_bus_err
return sd_bus_reply_method_return(message, NULL);
}
int bus_link_method_set_private_dns(sd_bus_message *message, void *userdata, sd_bus_error *error) {
int bus_link_method_set_dns_over_tls(sd_bus_message *message, void *userdata, sd_bus_error *error) {
Link *l = userdata;
const char *private_dns;
PrivateDnsMode mode;
const char *dns_over_tls;
DnsOverTlsMode mode;
int r;
assert(message);
@ -432,19 +432,19 @@ int bus_link_method_set_private_dns(sd_bus_message *message, void *userdata, sd_
if (r < 0)
return r;
r = sd_bus_message_read(message, "s", &private_dns);
r = sd_bus_message_read(message, "s", &dns_over_tls);
if (r < 0)
return r;
if (isempty(private_dns))
mode = _PRIVATE_DNS_MODE_INVALID;
if (isempty(dns_over_tls))
mode = _DNS_OVER_TLS_MODE_INVALID;
else {
mode = private_dns_mode_from_string(private_dns);
mode = dns_over_tls_mode_from_string(dns_over_tls);
if (mode < 0)
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid PrivateDNS setting: %s", private_dns);
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid DNSOverTLS setting: %s", dns_over_tls);
}
link_set_private_dns_mode(l, mode);
link_set_dns_over_tls_mode(l, mode);
(void) link_save_user(l);
@ -557,7 +557,7 @@ const sd_bus_vtable link_vtable[] = {
SD_BUS_PROPERTY("Domains", "a(sb)", property_get_domains, 0, 0),
SD_BUS_PROPERTY("LLMNR", "s", bus_property_get_resolve_support, offsetof(Link, llmnr_support), 0),
SD_BUS_PROPERTY("MulticastDNS", "s", bus_property_get_resolve_support, offsetof(Link, mdns_support), 0),
SD_BUS_PROPERTY("PrivateDNS", "s", property_get_private_dns_mode, 0, 0),
SD_BUS_PROPERTY("DNSOverTLS", "s", property_get_dns_over_tls_mode, 0, 0),
SD_BUS_PROPERTY("DNSSEC", "s", property_get_dnssec_mode, 0, 0),
SD_BUS_PROPERTY("DNSSECNegativeTrustAnchors", "as", property_get_ntas, 0, 0),
SD_BUS_PROPERTY("DNSSECSupported", "b", property_get_dnssec_supported, 0, 0),
@ -566,7 +566,7 @@ const sd_bus_vtable link_vtable[] = {
SD_BUS_METHOD("SetDomains", "a(sb)", NULL, bus_link_method_set_domains, 0),
SD_BUS_METHOD("SetLLMNR", "s", NULL, bus_link_method_set_llmnr, 0),
SD_BUS_METHOD("SetMulticastDNS", "s", NULL, bus_link_method_set_mdns, 0),
SD_BUS_METHOD("SetPrivateDNS", "s", NULL, bus_link_method_set_private_dns, 0),
SD_BUS_METHOD("SetDNSOverTLS", "s", NULL, bus_link_method_set_dns_over_tls, 0),
SD_BUS_METHOD("SetDNSSEC", "s", NULL, bus_link_method_set_dnssec, 0),
SD_BUS_METHOD("SetDNSSECNegativeTrustAnchors", "as", NULL, bus_link_method_set_dnssec_negative_trust_anchors, 0),
SD_BUS_METHOD("Revert", NULL, NULL, bus_link_method_revert, 0),

View File

@ -21,7 +21,7 @@ int bus_link_method_set_dns_servers(sd_bus_message *message, void *userdata, sd_
int bus_link_method_set_domains(sd_bus_message *message, void *userdata, sd_bus_error *error);
int bus_link_method_set_llmnr(sd_bus_message *message, void *userdata, sd_bus_error *error);
int bus_link_method_set_mdns(sd_bus_message *message, void *userdata, sd_bus_error *error);
int bus_link_method_set_private_dns(sd_bus_message *message, void *userdata, sd_bus_error *error);
int bus_link_method_set_dns_over_tls(sd_bus_message *message, void *userdata, sd_bus_error *error);
int bus_link_method_set_dnssec(sd_bus_message *message, void *userdata, sd_bus_error *error);
int bus_link_method_set_dnssec_negative_trust_anchors(sd_bus_message *message, void *userdata, sd_bus_error *error);
int bus_link_method_revert(sd_bus_message *message, void *userdata, sd_bus_error *error);

View File

@ -41,7 +41,7 @@ int link_new(Manager *m, Link **ret, int ifindex) {
l->llmnr_support = RESOLVE_SUPPORT_YES;
l->mdns_support = RESOLVE_SUPPORT_NO;
l->dnssec_mode = _DNSSEC_MODE_INVALID;
l->private_dns_mode = _PRIVATE_DNS_MODE_INVALID;
l->dns_over_tls_mode = _DNS_OVER_TLS_MODE_INVALID;
l->operstate = IF_OPER_UNKNOWN;
if (asprintf(&l->state_file, "/run/systemd/resolve/netif/%i", ifindex) < 0)
@ -66,7 +66,7 @@ void link_flush_settings(Link *l) {
l->llmnr_support = RESOLVE_SUPPORT_YES;
l->mdns_support = RESOLVE_SUPPORT_NO;
l->dnssec_mode = _DNSSEC_MODE_INVALID;
l->private_dns_mode = _PRIVATE_DNS_MODE_INVALID;
l->dns_over_tls_mode = _DNS_OVER_TLS_MODE_INVALID;
dns_server_unlink_all(l->dns_servers);
dns_search_domain_unlink_all(l->search_domains);
@ -354,26 +354,26 @@ clear:
return r;
}
void link_set_private_dns_mode(Link *l, PrivateDnsMode mode) {
void link_set_dns_over_tls_mode(Link *l, DnsOverTlsMode mode) {
assert(l);
#if ! HAVE_GNUTLS
if (mode != PRIVATE_DNS_NO)
log_warning("Private DNS option for the link cannot be set to opportunistic when systemd-resolved is built without gnutls support. Turning off Private DNS support.");
if (mode != DNS_OVER_TLS_NO)
log_warning("DNS-over-TLS option for the link cannot be set to opportunistic when systemd-resolved is built without gnutls support. Turning off DNS-over-TLS support.");
return;
#endif
l->private_dns_mode = mode;
l->dns_over_tls_mode = mode;
}
static int link_update_private_dns_mode(Link *l) {
static int link_update_dns_over_tls_mode(Link *l) {
_cleanup_free_ char *b = NULL;
int r;
assert(l);
r = sd_network_link_get_private_dns(l->ifindex, &b);
r = sd_network_link_get_dns_over_tls(l->ifindex, &b);
if (r == -ENODATA) {
r = 0;
goto clear;
@ -381,8 +381,8 @@ static int link_update_private_dns_mode(Link *l) {
if (r < 0)
goto clear;
l->private_dns_mode = private_dns_mode_from_string(b);
if (l->private_dns_mode < 0) {
l->dns_over_tls_mode = dns_over_tls_mode_from_string(b);
if (l->dns_over_tls_mode < 0) {
r = -EINVAL;
goto clear;
}
@ -390,7 +390,7 @@ static int link_update_private_dns_mode(Link *l) {
return 0;
clear:
l->private_dns_mode = _PRIVATE_DNS_MODE_INVALID;
l->dns_over_tls_mode = _DNS_OVER_TLS_MODE_INVALID;
return r;
}
@ -601,9 +601,9 @@ static void link_read_settings(Link *l) {
if (r < 0)
log_warning_errno(r, "Failed to read mDNS support for interface %s, ignoring: %m", l->name);
r = link_update_private_dns_mode(l);
r = link_update_dns_over_tls_mode(l);
if (r < 0)
log_warning_errno(r, "Failed to read Private DNS mode for interface %s, ignoring: %m", l->name);
log_warning_errno(r, "Failed to read DNS-over-TLS mode for interface %s, ignoring: %m", l->name);
r = link_update_dnssec_mode(l);
if (r < 0)
@ -738,13 +738,13 @@ void link_next_dns_server(Link *l) {
link_set_dns_server(l, l->dns_servers);
}
PrivateDnsMode link_get_private_dns_mode(Link *l) {
DnsOverTlsMode link_get_dns_over_tls_mode(Link *l) {
assert(l);
if (l->private_dns_mode != _PRIVATE_DNS_MODE_INVALID)
return l->private_dns_mode;
if (l->dns_over_tls_mode != _DNS_OVER_TLS_MODE_INVALID)
return l->dns_over_tls_mode;
return manager_get_private_dns_mode(l->manager);
return manager_get_dns_over_tls_mode(l->manager);
}
DnssecMode link_get_dnssec_mode(Link *l) {

View File

@ -59,7 +59,7 @@ struct Link {
ResolveSupport llmnr_support;
ResolveSupport mdns_support;
PrivateDnsMode private_dns_mode;
DnsOverTlsMode dns_over_tls_mode;
DnssecMode dnssec_mode;
Set *dnssec_negative_trust_anchors;
@ -91,7 +91,7 @@ void link_add_rrs(Link *l, bool force_remove);
void link_flush_settings(Link *l);
void link_set_dnssec_mode(Link *l, DnssecMode mode);
void link_set_private_dns_mode(Link *l, PrivateDnsMode mode);
void link_set_dns_over_tls_mode(Link *l, DnsOverTlsMode mode);
void link_allocate_scopes(Link *l);
DnsServer* link_set_dns_server(Link *l, DnsServer *s);
@ -101,7 +101,7 @@ void link_next_dns_server(Link *l);
DnssecMode link_get_dnssec_mode(Link *l);
bool link_dnssec_supported(Link *l);
PrivateDnsMode link_get_private_dns_mode(Link *l);
DnsOverTlsMode link_get_dns_over_tls_mode(Link *l);
int link_save_user(Link *l);
int link_load_user(Link *l);

View File

@ -580,7 +580,7 @@ int manager_new(Manager **ret) {
m->llmnr_support = RESOLVE_SUPPORT_YES;
m->mdns_support = RESOLVE_SUPPORT_YES;
m->dnssec_mode = DEFAULT_DNSSEC_MODE;
m->private_dns_mode = DEFAULT_PRIVATE_DNS_MODE;
m->dns_over_tls_mode = DEFAULT_DNS_OVER_TLS_MODE;
m->enable_cache = true;
m->dns_stub_listener_mode = DNS_STUB_LISTENER_UDP;
m->read_resolv_conf = true;
@ -1385,13 +1385,13 @@ bool manager_dnssec_supported(Manager *m) {
return true;
}
PrivateDnsMode manager_get_private_dns_mode(Manager *m) {
DnsOverTlsMode manager_get_dns_over_tls_mode(Manager *m) {
assert(m);
if (m->private_dns_mode != _PRIVATE_DNS_MODE_INVALID)
return m->private_dns_mode;
if (m->dns_over_tls_mode != _DNS_OVER_TLS_MODE_INVALID)
return m->dns_over_tls_mode;
return PRIVATE_DNS_NO;
return DNS_OVER_TLS_NO;
}
void manager_dnssec_verdict(Manager *m, DnssecVerdict verdict, const DnsResourceKey *key) {

View File

@ -35,7 +35,7 @@ struct Manager {
ResolveSupport llmnr_support;
ResolveSupport mdns_support;
DnssecMode dnssec_mode;
PrivateDnsMode private_dns_mode;
DnsOverTlsMode dns_over_tls_mode;
bool enable_cache;
DnsStubListenerMode dns_stub_listener_mode;
@ -173,7 +173,7 @@ int manager_compile_search_domains(Manager *m, OrderedSet **domains, int filter_
DnssecMode manager_get_dnssec_mode(Manager *m);
bool manager_dnssec_supported(Manager *m);
PrivateDnsMode manager_get_private_dns_mode(Manager *m);
DnsOverTlsMode manager_get_dns_over_tls_mode(Manager *m);
void manager_dnssec_verdict(Manager *m, DnssecVerdict verdict, const DnsResourceKey *key);

View File

@ -18,6 +18,6 @@
#LLMNR=yes
#MulticastDNS=yes
#DNSSEC=@DEFAULT_DNSSEC_MODE@
#PrivateDNS=@DEFAULT_PRIVATE_DNS_MODE@
#DNSOverTLS=@DEFAULT_DNS_OVER_TLS_MODE@
#Cache=yes
#DNSStubListener=udp

View File

@ -11,7 +11,7 @@
DEFINE_CONFIG_PARSE_ENUM(config_parse_resolve_support, resolve_support, ResolveSupport, "Failed to parse resolve support setting");
DEFINE_CONFIG_PARSE_ENUM(config_parse_dnssec_mode, dnssec_mode, DnssecMode, "Failed to parse DNSSEC mode setting");
DEFINE_CONFIG_PARSE_ENUM(config_parse_private_dns_mode, private_dns_mode, PrivateDnsMode, "Failed to parse private DNS mode setting");
DEFINE_CONFIG_PARSE_ENUM(config_parse_dns_over_tls_mode, dns_over_tls_mode, DnsOverTlsMode, "Failed to parse DNS-over-TLS mode setting");
static const char* const resolve_support_table[_RESOLVE_SUPPORT_MAX] = {
[RESOLVE_SUPPORT_NO] = "no",
@ -27,8 +27,8 @@ static const char* const dnssec_mode_table[_DNSSEC_MODE_MAX] = {
};
DEFINE_STRING_TABLE_LOOKUP_WITH_BOOLEAN(dnssec_mode, DnssecMode, DNSSEC_YES);
static const char* const private_dns_mode_table[_PRIVATE_DNS_MODE_MAX] = {
[PRIVATE_DNS_NO] = "no",
[PRIVATE_DNS_OPPORTUNISTIC] = "opportunistic",
static const char* const dns_over_tls_mode_table[_DNS_OVER_TLS_MODE_MAX] = {
[DNS_OVER_TLS_NO] = "no",
[DNS_OVER_TLS_OPPORTUNISTIC] = "opportunistic",
};
DEFINE_STRING_TABLE_LOOKUP_WITH_BOOLEAN(private_dns_mode, PrivateDnsMode, _PRIVATE_DNS_MODE_INVALID);
DEFINE_STRING_TABLE_LOOKUP_WITH_BOOLEAN(dns_over_tls_mode, DnsOverTlsMode, _DNS_OVER_TLS_MODE_INVALID);

View File

@ -12,7 +12,7 @@
typedef enum ResolveSupport ResolveSupport;
typedef enum DnssecMode DnssecMode;
typedef enum PrivateDnsMode PrivateDnsMode;
typedef enum DnsOverTlsMode DnsOverTlsMode;
enum ResolveSupport {
RESOLVE_SUPPORT_NO,
@ -40,21 +40,21 @@ enum DnssecMode {
_DNSSEC_MODE_INVALID = -1
};
enum PrivateDnsMode {
enum DnsOverTlsMode {
/* No connection is made for DNS-over-TLS */
PRIVATE_DNS_NO,
DNS_OVER_TLS_NO,
/* Try to connect using DNS-over-TLS, but if connection fails,
* fallback to using an unencrypted connection */
PRIVATE_DNS_OPPORTUNISTIC,
DNS_OVER_TLS_OPPORTUNISTIC,
_PRIVATE_DNS_MODE_MAX,
_PRIVATE_DNS_MODE_INVALID = -1
_DNS_OVER_TLS_MODE_MAX,
_DNS_OVER_TLS_MODE_INVALID = -1
};
CONFIG_PARSER_PROTOTYPE(config_parse_resolve_support);
CONFIG_PARSER_PROTOTYPE(config_parse_dnssec_mode);
CONFIG_PARSER_PROTOTYPE(config_parse_private_dns_mode);
CONFIG_PARSER_PROTOTYPE(config_parse_dns_over_tls_mode);
const char* resolve_support_to_string(ResolveSupport p) _const_;
ResolveSupport resolve_support_from_string(const char *s) _pure_;
@ -62,5 +62,5 @@ ResolveSupport resolve_support_from_string(const char *s) _pure_;
const char* dnssec_mode_to_string(DnssecMode p) _const_;
DnssecMode dnssec_mode_from_string(const char *s) _pure_;
const char* private_dns_mode_to_string(PrivateDnsMode p) _const_;
PrivateDnsMode private_dns_mode_from_string(const char *s) _pure_;
const char* dns_over_tls_mode_to_string(DnsOverTlsMode p) _const_;
DnsOverTlsMode dns_over_tls_mode_from_string(const char *s) _pure_;

View File

@ -129,13 +129,13 @@ int sd_network_link_get_llmnr(int ifindex, char **llmnr);
*/
int sd_network_link_get_mdns(int ifindex, char **mdns);
/* Indicates whether or not Private DNS should be enabled for the
/* Indicates whether or not DNS-over-TLS should be enabled for the
* link.
* Possible levels of support: strict, no, opportunistic
* Possible return codes:
* -ENODATA: networkd is not aware of the link
*/
int sd_network_link_get_private_dns(int ifindex, char **private_dns);
int sd_network_link_get_dns_over_tls(int ifindex, char **dns_over_tls);
/* Indicates whether or not DNSSEC should be enabled for the link
* Possible levels of support: yes, no, allow-downgrade