From: Nick Rosbrook <enr0n@ubuntu.com>
Date: Fri, 10 Oct 2025 19:56:34 +0000 (-0400)
Subject: resolve: add resolv.conf mode to DNSConfiguration
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=9f9264e3f6db22c6951828bb3571f42aeb97aa8b;p=thirdparty%2Fsystemd.git

resolve: add resolv.conf mode to DNSConfiguration

This is one of several commits to expand the DNSConfiguration varlink
type to include the necessary information for resolvectl status output.
---

diff --git a/src/resolve/resolved-manager.c b/src/resolve/resolved-manager.c
index b3af9ce4e32..259886ff046 100644
--- a/src/resolve/resolved-manager.c
+++ b/src/resolve/resolved-manager.c
@@ -2054,6 +2054,7 @@ static int dns_configuration_json_append(
                 DnsOverTlsMode dns_over_tls_mode,
                 ResolveSupport llmnr_support,
                 ResolveSupport mdns_support,
+                ResolvConfMode resolv_conf_mode,
                 sd_json_variant **configuration) {
 
         _cleanup_(sd_json_variant_unrefp) sd_json_variant *dns_servers_json = NULL,
@@ -2146,6 +2147,7 @@ static int dns_configuration_json_append(
                         JSON_BUILD_PAIR_STRING_NON_EMPTY("dnsOverTLS", dns_over_tls_mode_to_string(dns_over_tls_mode)),
                         JSON_BUILD_PAIR_STRING_NON_EMPTY("llmnr", resolve_support_to_string(llmnr_support)),
                         JSON_BUILD_PAIR_STRING_NON_EMPTY("mDNS", resolve_support_to_string(mdns_support)),
+                        JSON_BUILD_PAIR_STRING_NON_EMPTY("resolvConfMode", resolv_conf_mode_to_string(resolv_conf_mode)),
                         JSON_BUILD_PAIR_VARIANT_NON_NULL("scopes", scopes_json));
 }
 
@@ -2174,6 +2176,7 @@ static int global_dns_configuration_json_append(Manager *m, sd_json_variant **co
                         manager_get_dns_over_tls_mode(m),
                         m->llmnr_support,
                         m->mdns_support,
+                        resolv_conf_mode(),
                         configuration);
 }
 
@@ -2228,6 +2231,7 @@ static int link_dns_configuration_json_append(Link *l, sd_json_variant **configu
                         link_get_dns_over_tls_mode(l),
                         link_get_llmnr_support(l),
                         link_get_mdns_support(l),
+                        /* resolv_conf_mode = */ _RESOLV_CONF_MODE_INVALID,
                         configuration);
 }
 
@@ -2256,6 +2260,7 @@ static int delegate_dns_configuration_json_append(DnsDelegate *d, sd_json_varian
                         /* dns_over_tls_mode = */ _DNS_OVER_TLS_MODE_INVALID,
                         /* llmnr_support = */ _RESOLVE_SUPPORT_INVALID,
                         /* mdns_support = */ _RESOLVE_SUPPORT_INVALID,
+                        /* resolv_conf_mode = */ _RESOLV_CONF_MODE_INVALID,
                         configuration);
 }
 
diff --git a/src/shared/varlink-io.systemd.Resolve.Monitor.c b/src/shared/varlink-io.systemd.Resolve.Monitor.c
index 622975e5de7..389da45a5e8 100644
--- a/src/shared/varlink-io.systemd.Resolve.Monitor.c
+++ b/src/shared/varlink-io.systemd.Resolve.Monitor.c
@@ -179,6 +179,8 @@ static SD_VARLINK_DEFINE_STRUCT_TYPE(
                 SD_VARLINK_DEFINE_FIELD(llmnr, SD_VARLINK_STRING, SD_VARLINK_NULLABLE),
                 SD_VARLINK_FIELD_COMMENT("mDNS support."),
                 SD_VARLINK_DEFINE_FIELD(mDNS, SD_VARLINK_STRING, SD_VARLINK_NULLABLE),
+                SD_VARLINK_FIELD_COMMENT("resolv.conf mode, set for global configuration only."),
+                SD_VARLINK_DEFINE_FIELD(resolvConfMode, SD_VARLINK_STRING, SD_VARLINK_NULLABLE),
                 SD_VARLINK_FIELD_COMMENT("Array of current DNS scopes."),
                 SD_VARLINK_DEFINE_FIELD_BY_TYPE(scopes, DNSScope, SD_VARLINK_ARRAY|SD_VARLINK_NULLABLE));