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db9ecf05 | 1 | /* SPDX-License-Identifier: LGPL-2.1-or-later */ |
38ee31a6 | 2 | |
38ee31a6 MAL |
3 | #include "alloc-util.h" |
4 | #include "bus-common-errors.h" | |
5 | #include "bus-util.h" | |
6 | #include "dhcp-server-internal.h" | |
7 | #include "networkd-dhcp-server-bus.h" | |
8 | #include "networkd-link-bus.h" | |
9 | #include "networkd-manager.h" | |
10 | #include "strv.h" | |
11 | ||
12 | static int property_get_leases( | |
13 | sd_bus *bus, | |
14 | const char *path, | |
15 | const char *interface, | |
16 | const char *property, | |
17 | sd_bus_message *reply, | |
18 | void *userdata, | |
19 | sd_bus_error *error) { | |
99534007 | 20 | Link *l = ASSERT_PTR(userdata); |
38ee31a6 MAL |
21 | sd_dhcp_server *s; |
22 | DHCPLease *lease; | |
38ee31a6 MAL |
23 | int r; |
24 | ||
25 | assert(reply); | |
38ee31a6 MAL |
26 | |
27 | s = l->dhcp_server; | |
28 | if (!s) | |
29 | return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED, "Link %s has no DHCP server.", l->ifname); | |
30 | ||
c95df587 YA |
31 | if (sd_dhcp_server_is_in_relay_mode(s)) |
32 | return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED, "Link %s has DHCP relay agent active.", l->ifname); | |
33 | ||
38ee31a6 MAL |
34 | r = sd_bus_message_open_container(reply, 'a', "(uayayayayt)"); |
35 | if (r < 0) | |
36 | return r; | |
37 | ||
b713a99b | 38 | HASHMAP_FOREACH(lease, s->bound_leases_by_client_id) { |
38ee31a6 MAL |
39 | r = sd_bus_message_open_container(reply, 'r', "uayayayayt"); |
40 | if (r < 0) | |
41 | return r; | |
42 | ||
43 | r = sd_bus_message_append(reply, "u", (uint32_t)AF_INET); | |
44 | if (r < 0) | |
45 | return r; | |
46 | ||
47 | r = sd_bus_message_append_array(reply, 'y', lease->client_id.data, lease->client_id.length); | |
48 | if (r < 0) | |
49 | return r; | |
50 | ||
51 | r = sd_bus_message_append_array(reply, 'y', &lease->address, sizeof(lease->address)); | |
52 | if (r < 0) | |
53 | return r; | |
54 | ||
55 | r = sd_bus_message_append_array(reply, 'y', &lease->gateway, sizeof(lease->gateway)); | |
56 | if (r < 0) | |
57 | return r; | |
58 | ||
59 | r = sd_bus_message_append_array(reply, 'y', &lease->chaddr, sizeof(lease->chaddr)); | |
60 | if (r < 0) | |
61 | return r; | |
62 | ||
63 | r = sd_bus_message_append_basic(reply, 't', &lease->expiration); | |
64 | if (r < 0) | |
65 | return r; | |
66 | ||
67 | r = sd_bus_message_close_container(reply); | |
68 | if (r < 0) | |
69 | return r; | |
70 | } | |
71 | ||
72 | return sd_bus_message_close_container(reply); | |
73 | } | |
74 | ||
75 | static int dhcp_server_emit_changed(Link *link, const char *property, ...) { | |
76 | _cleanup_free_ char *path = NULL; | |
77 | char **l; | |
78 | ||
79 | assert(link); | |
80 | ||
706875f1 YW |
81 | if (sd_bus_is_ready(link->manager->bus) <= 0) |
82 | return 0; | |
83 | ||
38ee31a6 MAL |
84 | path = link_bus_path(link); |
85 | if (!path) | |
86 | return log_oom(); | |
87 | ||
88 | l = strv_from_stdarg_alloca(property); | |
89 | ||
90 | return sd_bus_emit_properties_changed_strv( | |
91 | link->manager->bus, | |
92 | path, | |
93 | "org.freedesktop.network1.DHCPServer", | |
94 | l); | |
95 | } | |
96 | ||
97 | void dhcp_server_callback(sd_dhcp_server *s, uint64_t event, void *data) { | |
99534007 | 98 | Link *l = ASSERT_PTR(data); |
38ee31a6 MAL |
99 | |
100 | if (event & SD_DHCP_SERVER_EVENT_LEASE_CHANGED) | |
101 | (void) dhcp_server_emit_changed(l, "Leases", NULL); | |
102 | } | |
103 | ||
6e194652 | 104 | static const sd_bus_vtable dhcp_server_vtable[] = { |
38ee31a6 MAL |
105 | SD_BUS_VTABLE_START(0), |
106 | ||
107 | SD_BUS_PROPERTY("Leases", "a(uayayayayt)", property_get_leases, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), | |
108 | ||
109 | SD_BUS_VTABLE_END | |
110 | }; | |
6e194652 YW |
111 | |
112 | const BusObjectImplementation dhcp_server_object = { | |
113 | "/org/freedesktop/network1/link", | |
114 | "org.freedesktop.network1.DHCPServer", | |
115 | .fallback_vtables = BUS_FALLBACK_VTABLES({dhcp_server_vtable, link_object_find}), | |
116 | .node_enumerator = link_node_enumerator, | |
117 | }; |