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path: root/src/resolve/resolved-link.c
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Diffstat (limited to 'src/resolve/resolved-link.c')
-rw-r--r--src/resolve/resolved-link.c162
1 files changed, 134 insertions, 28 deletions
diff --git a/src/resolve/resolved-link.c b/src/resolve/resolved-link.c
index 0fe2bb30bd..30838ef8cc 100644
--- a/src/resolve/resolved-link.c
+++ b/src/resolve/resolved-link.c
@@ -46,7 +46,9 @@ int link_new(Manager *m, Link **ret, int ifindex) {
return -ENOMEM;
l->ifindex = ifindex;
- l->llmnr_support = SUPPORT_YES;
+ l->llmnr_support = RESOLVE_SUPPORT_YES;
+ l->mdns_support = RESOLVE_SUPPORT_NO;
+ l->dnssec_mode = _DNSSEC_MODE_INVALID;
r = hashmap_put(m->links, INT_TO_PTR(ifindex), l);
if (r < 0)
@@ -65,7 +67,7 @@ Link *link_free(Link *l) {
if (!l)
return NULL;
- dns_server_unlink_marked(l->dns_servers);
+ dns_server_unlink_all(l->dns_servers);
dns_search_domain_unlink_all(l->search_domains);
while (l->addresses)
@@ -80,6 +82,8 @@ Link *link_free(Link *l) {
dns_scope_free(l->mdns_ipv4_scope);
dns_scope_free(l->mdns_ipv6_scope);
+ set_free_free(l->dnssec_negative_trust_anchors);
+
free(l);
return NULL;
}
@@ -99,8 +103,8 @@ static void link_allocate_scopes(Link *l) {
l->unicast_scope = dns_scope_free(l->unicast_scope);
if (link_relevant(l, AF_INET) &&
- l->llmnr_support != SUPPORT_NO &&
- l->manager->llmnr_support != SUPPORT_NO) {
+ l->llmnr_support != RESOLVE_SUPPORT_NO &&
+ l->manager->llmnr_support != RESOLVE_SUPPORT_NO) {
if (!l->llmnr_ipv4_scope) {
r = dns_scope_new(l->manager, &l->llmnr_ipv4_scope, l, DNS_PROTOCOL_LLMNR, AF_INET);
if (r < 0)
@@ -110,8 +114,8 @@ static void link_allocate_scopes(Link *l) {
l->llmnr_ipv4_scope = dns_scope_free(l->llmnr_ipv4_scope);
if (link_relevant(l, AF_INET6) &&
- l->llmnr_support != SUPPORT_NO &&
- l->manager->llmnr_support != SUPPORT_NO &&
+ l->llmnr_support != RESOLVE_SUPPORT_NO &&
+ l->manager->llmnr_support != RESOLVE_SUPPORT_NO &&
socket_ipv6_is_supported()) {
if (!l->llmnr_ipv6_scope) {
r = dns_scope_new(l->manager, &l->llmnr_ipv6_scope, l, DNS_PROTOCOL_LLMNR, AF_INET6);
@@ -122,8 +126,8 @@ static void link_allocate_scopes(Link *l) {
l->llmnr_ipv6_scope = dns_scope_free(l->llmnr_ipv6_scope);
if (link_relevant(l, AF_INET) &&
- l->mdns_support != SUPPORT_NO &&
- l->manager->mdns_support != SUPPORT_NO) {
+ l->mdns_support != RESOLVE_SUPPORT_NO &&
+ l->manager->mdns_support != RESOLVE_SUPPORT_NO) {
if (!l->mdns_ipv4_scope) {
r = dns_scope_new(l->manager, &l->mdns_ipv4_scope, l, DNS_PROTOCOL_MDNS, AF_INET);
if (r < 0)
@@ -133,8 +137,8 @@ static void link_allocate_scopes(Link *l) {
l->mdns_ipv4_scope = dns_scope_free(l->mdns_ipv4_scope);
if (link_relevant(l, AF_INET6) &&
- l->mdns_support != SUPPORT_NO &&
- l->manager->mdns_support != SUPPORT_NO) {
+ l->mdns_support != RESOLVE_SUPPORT_NO &&
+ l->manager->mdns_support != RESOLVE_SUPPORT_NO) {
if (!l->mdns_ipv6_scope) {
r = dns_scope_new(l->manager, &l->mdns_ipv6_scope, l, DNS_PROTOCOL_MDNS, AF_INET6);
if (r < 0)
@@ -233,22 +237,107 @@ static int link_update_llmnr_support(Link *l) {
if (r < 0)
goto clear;
- r = parse_boolean(b);
- if (r < 0) {
- if (streq(b, "resolve"))
- l->llmnr_support = SUPPORT_RESOLVE;
- else
- goto clear;
+ l->llmnr_support = resolve_support_from_string(b);
+ if (l->llmnr_support < 0) {
+ r = -EINVAL;
+ goto clear;
+ }
- } else if (r > 0)
- l->llmnr_support = SUPPORT_YES;
- else
- l->llmnr_support = SUPPORT_NO;
+ return 0;
+
+clear:
+ l->llmnr_support = RESOLVE_SUPPORT_YES;
+ return r;
+}
+
+static int link_update_mdns_support(Link *l) {
+ _cleanup_free_ char *b = NULL;
+ int r;
+
+ assert(l);
+
+ r = sd_network_link_get_mdns(l->ifindex, &b);
+ if (r == -ENODATA) {
+ r = 0;
+ goto clear;
+ }
+ if (r < 0)
+ goto clear;
+
+ l->mdns_support = resolve_support_from_string(b);
+ if (l->mdns_support < 0) {
+ r = -EINVAL;
+ goto clear;
+ }
return 0;
clear:
- l->llmnr_support = SUPPORT_YES;
+ l->mdns_support = RESOLVE_SUPPORT_NO;
+ return r;
+}
+
+static int link_update_dnssec_mode(Link *l) {
+ _cleanup_free_ char *m = NULL;
+ int r;
+
+ assert(l);
+
+ r = sd_network_link_get_dnssec(l->ifindex, &m);
+ if (r == -ENODATA) {
+ r = 0;
+ goto clear;
+ }
+ if (r < 0)
+ goto clear;
+
+ l->dnssec_mode = dnssec_mode_from_string(m);
+ if (l->dnssec_mode < 0) {
+ r = -EINVAL;
+ goto clear;
+ }
+
+ return 0;
+
+clear:
+ l->dnssec_mode = _DNSSEC_MODE_INVALID;
+ return r;
+}
+
+static int link_update_dnssec_negative_trust_anchors(Link *l) {
+ _cleanup_strv_free_ char **ntas = NULL;
+ _cleanup_set_free_free_ Set *ns = NULL;
+ char **i;
+ int r;
+
+ assert(l);
+
+ r = sd_network_link_get_dnssec_negative_trust_anchors(l->ifindex, &ntas);
+ if (r == -ENODATA) {
+ r = 0;
+ goto clear;
+ }
+ if (r < 0)
+ goto clear;
+
+ ns = set_new(&dns_name_hash_ops);
+ if (!ns)
+ return -ENOMEM;
+
+ STRV_FOREACH(i, ntas) {
+ r = set_put_strdup(ns, *i);
+ if (r < 0)
+ return r;
+ }
+
+ set_free_free(l->dnssec_negative_trust_anchors);
+ l->dnssec_negative_trust_anchors = ns;
+ ns = NULL;
+
+ return 0;
+
+clear:
+ l->dnssec_negative_trust_anchors = set_free_free(l->dnssec_negative_trust_anchors);
return r;
}
@@ -299,14 +388,31 @@ int link_update_monitor(Link *l) {
assert(l);
- link_update_dns_servers(l);
- link_update_llmnr_support(l);
- link_allocate_scopes(l);
+ r = link_update_dns_servers(l);
+ if (r < 0)
+ log_warning_errno(r, "Failed to read DNS servers for interface %s, ignoring: %m", l->name);
+
+ r = link_update_llmnr_support(l);
+ if (r < 0)
+ log_warning_errno(r, "Failed to read LLMNR support for interface %s, ignoring: %m", l->name);
+
+ r = link_update_mdns_support(l);
+ if (r < 0)
+ log_warning_errno(r, "Failed to read mDNS support for interface %s, ignoring: %m", l->name);
+
+ r = link_update_dnssec_mode(l);
+ if (r < 0)
+ log_warning_errno(r, "Failed to read DNSSEC mode for interface %s, ignoring: %m", l->name);
+
+ r = link_update_dnssec_negative_trust_anchors(l);
+ if (r < 0)
+ log_warning_errno(r, "Failed to read DNSSEC negative trust anchors for interface %s, ignoring: %m", l->name);
r = link_update_search_domains(l);
if (r < 0)
log_warning_errno(r, "Failed to read search domains for interface %s, ignoring: %m", l->name);
+ link_allocate_scopes(l);
link_add_rrs(l, false);
return 0;
@@ -459,8 +565,8 @@ void link_address_add_rrs(LinkAddress *a, bool force_remove) {
if (!force_remove &&
link_address_relevant(a) &&
a->link->llmnr_ipv4_scope &&
- a->link->llmnr_support == SUPPORT_YES &&
- a->link->manager->llmnr_support == SUPPORT_YES) {
+ a->link->llmnr_support == RESOLVE_SUPPORT_YES &&
+ a->link->manager->llmnr_support == RESOLVE_SUPPORT_YES) {
if (!a->link->manager->llmnr_host_ipv4_key) {
a->link->manager->llmnr_host_ipv4_key = dns_resource_key_new(DNS_CLASS_IN, DNS_TYPE_A, a->link->manager->llmnr_hostname);
@@ -516,8 +622,8 @@ void link_address_add_rrs(LinkAddress *a, bool force_remove) {
if (!force_remove &&
link_address_relevant(a) &&
a->link->llmnr_ipv6_scope &&
- a->link->llmnr_support == SUPPORT_YES &&
- a->link->manager->llmnr_support == SUPPORT_YES) {
+ a->link->llmnr_support == RESOLVE_SUPPORT_YES &&
+ a->link->manager->llmnr_support == RESOLVE_SUPPORT_YES) {
if (!a->link->manager->llmnr_host_ipv6_key) {
a->link->manager->llmnr_host_ipv6_key = dns_resource_key_new(DNS_CLASS_IN, DNS_TYPE_AAAA, a->link->manager->llmnr_hostname);
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-10-26 05:18:29 +0000