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authorLennart Poettering <lennart@poettering.net>2016-01-19 18:32:42 +0100
committerLennart Poettering <lennart@poettering.net>2016-01-19 21:56:54 +0100
commit3abaabdab73bd0f3e4f68284dc3cb00902b8e1c6 (patch)
tree79247a12c870f4222f706d070037e9daa7de4b85 /src/resolve/resolved-link-bus.c
parente40f0647b48b57af5e874501ad9c05dc459108de (diff)
resolved: expose bus objects for each Link
The link objects expose as properties the current settings made with SetLinkDNS() and related calls, plus some more information.
Diffstat (limited to 'src/resolve/resolved-link-bus.c')
-rw-r--r--src/resolve/resolved-link-bus.c236
1 files changed, 236 insertions, 0 deletions
diff --git a/src/resolve/resolved-link-bus.c b/src/resolve/resolved-link-bus.c
new file mode 100644
index 0000000000..d77251e241
--- /dev/null
+++ b/src/resolve/resolved-link-bus.c
@@ -0,0 +1,236 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ This file is part of systemd.
+
+ Copyright 2016 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include "alloc-util.h"
+#include "bus-util.h"
+#include "parse-util.h"
+#include "resolve-util.h"
+#include "resolved-bus.h"
+#include "resolved-link-bus.h"
+#include "strv.h"
+
+static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_resolve_support, resolve_support, ResolveSupport);
+static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_dnssec_mode, dnssec_mode, DnssecMode);
+
+static int property_get_dns(
+ sd_bus *bus,
+ const char *path,
+ const char *interface,
+ const char *property,
+ sd_bus_message *reply,
+ void *userdata,
+ sd_bus_error *error) {
+
+ Link *l = userdata;
+ DnsServer *s;
+ int r;
+
+ assert(reply);
+ assert(l);
+
+ r = sd_bus_message_open_container(reply, 'a', "(iay)");
+ if (r < 0)
+ return r;
+
+ LIST_FOREACH(servers, s, l->dns_servers) {
+ r = bus_dns_server_append(reply, s, false);
+ if (r < 0)
+ return r;
+ }
+
+ return sd_bus_message_close_container(reply);
+}
+
+static int property_get_domains(
+ sd_bus *bus,
+ const char *path,
+ const char *interface,
+ const char *property,
+ sd_bus_message *reply,
+ void *userdata,
+ sd_bus_error *error) {
+
+ Link *l = userdata;
+ DnsSearchDomain *d;
+ int r;
+
+ assert(reply);
+ assert(l);
+
+ r = sd_bus_message_open_container(reply, 'a', "s");
+ if (r < 0)
+ return r;
+
+ LIST_FOREACH(domains, d, l->search_domains) {
+ r = sd_bus_message_append(reply, "s", d->name);
+ if (r < 0)
+ return r;
+ }
+
+ return sd_bus_message_close_container(reply);
+}
+
+static int property_get_scopes_mask(
+ sd_bus *bus,
+ const char *path,
+ const char *interface,
+ const char *property,
+ sd_bus_message *reply,
+ void *userdata,
+ sd_bus_error *error) {
+
+ Link *l = userdata;
+ uint64_t mask;
+
+ assert(reply);
+ assert(l);
+
+ mask = (l->unicast_scope ? SD_RESOLVED_DNS : 0) |
+ (l->llmnr_ipv4_scope ? SD_RESOLVED_LLMNR_IPV4 : 0) |
+ (l->llmnr_ipv6_scope ? SD_RESOLVED_LLMNR_IPV6 : 0) |
+ (l->mdns_ipv4_scope ? SD_RESOLVED_MDNS_IPV4 : 0) |
+ (l->mdns_ipv6_scope ? SD_RESOLVED_MDNS_IPV6 : 0);
+
+ return sd_bus_message_append(reply, "t", mask);
+}
+
+static int property_get_ntas(
+ sd_bus *bus,
+ const char *path,
+ const char *interface,
+ const char *property,
+ sd_bus_message *reply,
+ void *userdata,
+ sd_bus_error *error) {
+
+ Link *l = userdata;
+ const char *name;
+ Iterator i;
+ int r;
+
+ assert(reply);
+ assert(l);
+
+ r = sd_bus_message_open_container(reply, 'a', "s");
+ if (r < 0)
+ return r;
+
+ SET_FOREACH(name, l->dnssec_negative_trust_anchors, i) {
+ r = sd_bus_message_append(reply, "s", name);
+ if (r < 0)
+ return r;
+ }
+
+ return sd_bus_message_close_container(reply);
+}
+
+const sd_bus_vtable link_vtable[] = {
+ SD_BUS_VTABLE_START(0),
+
+ SD_BUS_PROPERTY("ScopesMask", "t", property_get_scopes_mask, 0, 0),
+ SD_BUS_PROPERTY("DNS", "a(iay)", property_get_dns, 0, 0),
+ SD_BUS_PROPERTY("Domains", "as", property_get_domains, 0, 0),
+ SD_BUS_PROPERTY("LLMNR", "s", property_get_resolve_support, offsetof(Link, llmnr_support), 0),
+ SD_BUS_PROPERTY("MulticastDNS", "s", property_get_resolve_support, offsetof(Link, mdns_support), 0),
+ SD_BUS_PROPERTY("DNSSEC", "s", property_get_dnssec_mode, offsetof(Link, dnssec_mode), 0),
+ SD_BUS_PROPERTY("DNSSECNegativeTrustAnchors", "as", property_get_ntas, 0, 0),
+
+ SD_BUS_VTABLE_END
+};
+
+int link_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error) {
+ _cleanup_free_ char *e = NULL;
+ Manager *m = userdata;
+ int ifindex;
+ Link *link;
+ int r;
+
+ assert(bus);
+ assert(path);
+ assert(interface);
+ assert(found);
+ assert(m);
+
+ r = sd_bus_path_decode(path, "/org/freedesktop/resolve1/link", &e);
+ if (r <= 0)
+ return 0;
+
+ r = parse_ifindex(e, &ifindex);
+ if (r < 0)
+ return 0;
+
+ link = hashmap_get(m->links, INT_TO_PTR(ifindex));
+ if (!link)
+ return 0;
+
+ *found = link;
+ return 1;
+}
+
+char *link_bus_path(Link *link) {
+ _cleanup_free_ char *ifindex = NULL;
+ char *p;
+ int r;
+
+ assert(link);
+
+ if (asprintf(&ifindex, "%i", link->ifindex) < 0)
+ return NULL;
+
+ r = sd_bus_path_encode("/org/freedesktop/resolve1/link", ifindex, &p);
+ if (r < 0)
+ return NULL;
+
+ return p;
+}
+
+int link_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error) {
+ _cleanup_strv_free_ char **l = NULL;
+ Manager *m = userdata;
+ Link *link;
+ Iterator i;
+ unsigned c = 0;
+
+ assert(bus);
+ assert(path);
+ assert(m);
+ assert(nodes);
+
+ l = new0(char*, hashmap_size(m->links) + 1);
+ if (!l)
+ return -ENOMEM;
+
+ HASHMAP_FOREACH(link, m->links, i) {
+ char *p;
+
+ p = link_bus_path(link);
+ if (!p)
+ return -ENOMEM;
+
+ l[c++] = p;
+ }
+
+ l[c] = NULL;
+ *nodes = l;
+ l = NULL;
+
+ return 1;
+}