3 #include <libubox/uloop.h>
4 #include <netinet/in.h>
11 static struct ubus_context *ubus = NULL;
12 static struct ubus_subscriber netifd;
13 static struct blob_buf b;
14 static struct blob_attr *dump = NULL;
15 static uint32_t objid = 0;
16 static struct ubus_request req_dump = { .list = LIST_HEAD_INIT(req_dump.list) };
18 static int handle_dhcpv4_leases(struct ubus_context *ctx, _unused struct ubus_object *obj,
19 struct ubus_request_data *req, _unused const char *method,
20 _unused struct blob_attr *msg)
22 struct interface *iface;
23 time_t now = odhcpd_time();
27 a = blobmsg_open_table(&b, "device");
29 list_for_each_entry(iface, &interfaces, head) {
30 if (iface->dhcpv4 != MODE_SERVER || iface->dhcpv4_assignments.next == NULL)
33 void *i = blobmsg_open_table(&b, iface->ifname);
34 void *j = blobmsg_open_array(&b, "leases");
36 struct dhcpv4_assignment *c;
37 list_for_each_entry(c, &iface->dhcpv4_assignments, head) {
38 if (!INFINITE_VALID(c->valid_until) && c->valid_until < now)
41 void *m, *l = blobmsg_open_table(&b, NULL);
42 char *buf = blobmsg_alloc_string_buffer(&b, "mac", 13);
44 odhcpd_hexlify(buf, c->hwaddr, sizeof(c->hwaddr));
45 blobmsg_add_string_buffer(&b);
47 blobmsg_add_string(&b, "hostname", (c->hostname) ? c->hostname : "");
48 blobmsg_add_u8(&b, "accept-reconf-nonce", c->accept_fr_nonce);
50 m = blobmsg_open_array(&b, "flags");
51 if (c->flags & OAF_BOUND)
52 blobmsg_add_string(&b, NULL, "bound");
54 if (c->flags & OAF_STATIC)
55 blobmsg_add_string(&b, NULL, "static");
56 blobmsg_close_array(&b, m);
58 buf = blobmsg_alloc_string_buffer(&b, "ip", INET_ADDRSTRLEN);
59 struct in_addr addr = {.s_addr = c->addr};
60 inet_ntop(AF_INET, &addr, buf, INET_ADDRSTRLEN);
61 blobmsg_add_string_buffer(&b);
63 blobmsg_add_u32(&b, "valid", INFINITE_VALID(c->valid_until) ?
64 (uint32_t)-1 : (uint32_t)(c->valid_until - now));
66 blobmsg_close_table(&b, l);
69 blobmsg_close_array(&b, j);
70 blobmsg_close_table(&b, i);
73 blobmsg_close_table(&b, a);
74 ubus_send_reply(ctx, req, b.head);
79 static void dhcpv6_blobmsg_ia_addr(struct in6_addr *addr, int prefix, uint32_t pref,
80 uint32_t valid, _unused void *arg)
82 void *a = blobmsg_open_table(&b, NULL);
83 char *buf = blobmsg_alloc_string_buffer(&b, NULL, INET6_ADDRSTRLEN);
85 inet_ntop(AF_INET6, addr, buf, INET6_ADDRSTRLEN);
86 blobmsg_add_string_buffer(&b);
87 blobmsg_add_u32(&b, "preferred-lifetime",
88 pref == UINT32_MAX ? (uint32_t)-1 : pref);
89 blobmsg_add_u32(&b, "valid-lifetime",
90 valid == UINT32_MAX ? (uint32_t)-1 : valid);
93 blobmsg_add_u32(&b, "prefix-length", prefix);
95 blobmsg_close_table(&b, a);
98 static int handle_dhcpv6_leases(_unused struct ubus_context *ctx, _unused struct ubus_object *obj,
99 _unused struct ubus_request_data *req, _unused const char *method,
100 _unused struct blob_attr *msg)
102 struct interface *iface;
103 time_t now = odhcpd_time();
106 blob_buf_init(&b, 0);
107 a = blobmsg_open_table(&b, "device");
109 list_for_each_entry(iface, &interfaces, head) {
110 if (iface->dhcpv6 != MODE_SERVER || iface->ia_assignments.next == NULL)
113 void *i = blobmsg_open_table(&b, iface->ifname);
114 void *j = blobmsg_open_array(&b, "leases");
116 struct dhcpv6_assignment *a, *border = list_last_entry(
117 &iface->ia_assignments, struct dhcpv6_assignment, head);
119 list_for_each_entry(a, &iface->ia_assignments, head) {
120 if (a == border || (!INFINITE_VALID(a->valid_until) &&
121 a->valid_until < now))
124 void *m, *l = blobmsg_open_table(&b, NULL);
125 char *buf = blobmsg_alloc_string_buffer(&b, "duid", 264);
127 odhcpd_hexlify(buf, a->clid_data, a->clid_len);
128 blobmsg_add_string_buffer(&b);
130 blobmsg_add_u32(&b, "iaid", ntohl(a->iaid));
131 blobmsg_add_string(&b, "hostname", (a->hostname) ? a->hostname : "");
132 blobmsg_add_u8(&b, "accept-reconf", a->accept_reconf);
133 blobmsg_add_u32(&b, "assigned", a->assigned);
135 m = blobmsg_open_array(&b, "flags");
136 if (a->flags & OAF_BOUND)
137 blobmsg_add_string(&b, NULL, "bound");
139 if (a->flags & OAF_STATIC)
140 blobmsg_add_string(&b, NULL, "static");
141 blobmsg_close_array(&b, m);
143 m = blobmsg_open_array(&b, a->length == 128 ? "ipv6-addr": "ipv6-prefix");
144 dhcpv6_enum_ia_addrs(iface, a, now, dhcpv6_blobmsg_ia_addr, NULL);
145 blobmsg_close_table(&b, m);
147 blobmsg_add_u32(&b, "valid", INFINITE_VALID(a->valid_until) ?
148 (uint32_t)-1 : (uint32_t)(a->valid_until - now));
150 blobmsg_close_table(&b, l);
153 blobmsg_close_array(&b, j);
154 blobmsg_close_table(&b, i);
157 blobmsg_close_table(&b, a);
158 ubus_send_reply(ctx, req, b.head);
163 static struct ubus_method main_object_methods[] = {
164 {.name = "ipv4leases", .handler = handle_dhcpv4_leases},
165 {.name = "ipv6leases", .handler = handle_dhcpv6_leases},
168 static struct ubus_object_type main_object_type =
169 UBUS_OBJECT_TYPE("dhcp", main_object_methods);
171 static struct ubus_object main_object = {
173 .type = &main_object_type,
174 .methods = main_object_methods,
175 .n_methods = ARRAY_SIZE(main_object_methods),
184 static const struct blobmsg_policy dump_attrs[DUMP_ATTR_MAX] = {
185 [DUMP_ATTR_INTERFACE] = { .name = "interface", .type = BLOBMSG_TYPE_ARRAY },
190 IFACE_ATTR_INTERFACE,
199 static const struct blobmsg_policy iface_attrs[IFACE_ATTR_MAX] = {
200 [IFACE_ATTR_INTERFACE] = { .name = "interface", .type = BLOBMSG_TYPE_STRING },
201 [IFACE_ATTR_IFNAME] = { .name = "l3_device", .type = BLOBMSG_TYPE_STRING },
202 [IFACE_ATTR_UP] = { .name = "up", .type = BLOBMSG_TYPE_BOOL },
203 [IFACE_ATTR_DATA] = { .name = "data", .type = BLOBMSG_TYPE_TABLE },
204 [IFACE_ATTR_PREFIX] = { .name = "ipv6-prefix", .type = BLOBMSG_TYPE_ARRAY },
205 [IFACE_ATTR_ADDRESS] = { .name = "ipv6-address", .type = BLOBMSG_TYPE_ARRAY },
208 static void handle_dump(_unused struct ubus_request *req, _unused int type, struct blob_attr *msg)
210 struct blob_attr *tb[DUMP_ATTR_MAX];
211 blobmsg_parse(dump_attrs, DUMP_ATTR_MAX, tb, blob_data(msg), blob_len(msg));
213 if (!tb[DUMP_ATTR_INTERFACE])
217 dump = blob_memdup(tb[DUMP_ATTR_INTERFACE]);
222 static void update_netifd(bool subscribe)
225 ubus_subscribe(ubus, &netifd, objid);
227 ubus_abort_request(ubus, &req_dump);
228 if (!ubus_invoke_async(ubus, objid, "dump", NULL, &req_dump)) {
229 req_dump.data_cb = handle_dump;
230 ubus_complete_request_async(ubus, &req_dump);
235 static int handle_update(_unused struct ubus_context *ctx, _unused struct ubus_object *obj,
236 _unused struct ubus_request_data *req, _unused const char *method,
237 struct blob_attr *msg)
239 struct blob_attr *tb[IFACE_ATTR_MAX];
240 blobmsg_parse(iface_attrs, IFACE_ATTR_MAX, tb, blob_data(msg), blob_len(msg));
242 const char *interface = (tb[IFACE_ATTR_INTERFACE]) ?
243 blobmsg_get_string(tb[IFACE_ATTR_INTERFACE]) : "";
244 const char *ifname = (tb[IFACE_ATTR_IFNAME]) ?
245 blobmsg_get_string(tb[IFACE_ATTR_IFNAME]) : "";
247 struct interface *c, *iface = NULL;
248 list_for_each_entry(c, &interfaces, head)
249 if (!strcmp(interface, c->name) || !strcmp(ifname, c->ifname))
252 if (iface && iface->ignore)
255 update_netifd(false);
260 void ubus_apply_network(void)
268 blobmsg_for_each_attr(a, dump, rem) {
269 struct blob_attr *tb[IFACE_ATTR_MAX];
270 blobmsg_parse(iface_attrs, IFACE_ATTR_MAX, tb, blobmsg_data(a), blobmsg_data_len(a));
272 if (!tb[IFACE_ATTR_INTERFACE] || !tb[IFACE_ATTR_DATA])
275 const char *interface = (tb[IFACE_ATTR_INTERFACE]) ?
276 blobmsg_get_string(tb[IFACE_ATTR_INTERFACE]) : "";
277 const char *ifname = (tb[IFACE_ATTR_IFNAME]) ?
278 blobmsg_get_string(tb[IFACE_ATTR_IFNAME]) : "";
280 bool matched = false;
281 struct interface *c, *n;
282 list_for_each_entry_safe(c, n, &interfaces, head) {
283 char *f = memmem(c->upstream, c->upstream_len,
284 interface, strlen(interface) + 1);
285 bool cmatched = !strcmp(interface, c->name) || !strcmp(ifname, c->ifname);
288 if (!cmatched && (!c->upstream_len || !f || (f != c->upstream && f[-1] != 0)))
292 config_parse_interface(blobmsg_data(tb[IFACE_ATTR_DATA]),
293 blobmsg_data_len(tb[IFACE_ATTR_DATA]), c->name, false);
297 config_parse_interface(blobmsg_data(tb[IFACE_ATTR_DATA]),
298 blobmsg_data_len(tb[IFACE_ATTR_DATA]), interface, false);
309 static const struct blobmsg_policy obj_attrs[OBJ_ATTR_MAX] = {
310 [OBJ_ATTR_ID] = { .name = "id", .type = BLOBMSG_TYPE_INT32 },
311 [OBJ_ATTR_PATH] = { .name = "path", .type = BLOBMSG_TYPE_STRING },
314 void ubus_bcast_dhcp_event(const char *type, const uint8_t *mac,
315 const size_t mlen, const struct in_addr *addr, const char *name,
316 const char *interface)
318 if (!ubus || !main_object.has_subscribers)
321 blob_buf_init(&b, 0);
323 blobmsg_add_string(&b, "mac", odhcpd_print_mac(mac, mlen));
325 blobmsg_add_string(&b, "ip", inet_ntoa(*addr));
327 blobmsg_add_string(&b, "name", name);
329 blobmsg_add_string(&b, "interface", interface);
331 ubus_notify(ubus, &main_object, type, b.head, -1);
334 static void handle_event(_unused struct ubus_context *ctx, _unused struct ubus_event_handler *ev,
335 _unused const char *type, struct blob_attr *msg)
337 struct blob_attr *tb[OBJ_ATTR_MAX];
338 blobmsg_parse(obj_attrs, OBJ_ATTR_MAX, tb, blob_data(msg), blob_len(msg));
340 if (!tb[OBJ_ATTR_ID] || !tb[OBJ_ATTR_PATH])
343 if (strcmp(blobmsg_get_string(tb[OBJ_ATTR_PATH]), "network.interface"))
346 objid = blobmsg_get_u32(tb[OBJ_ATTR_ID]);
350 static struct ubus_event_handler event_handler = { .cb = handle_event };
353 const char* ubus_get_ifname(const char *name)
361 blobmsg_for_each_attr(c, dump, rem) {
362 struct blob_attr *tb[IFACE_ATTR_MAX];
363 blobmsg_parse(iface_attrs, IFACE_ATTR_MAX, tb, blobmsg_data(c), blobmsg_data_len(c));
365 if (!tb[IFACE_ATTR_INTERFACE] || strcmp(name,
366 blobmsg_get_string(tb[IFACE_ATTR_INTERFACE])))
369 if (tb[IFACE_ATTR_IFNAME])
370 return blobmsg_get_string(tb[IFACE_ATTR_IFNAME]);
377 bool ubus_has_prefix(const char *name, const char *ifname)
379 struct blob_attr *c, *cur;
385 blobmsg_for_each_attr(c, dump, rem) {
386 struct blob_attr *tb[IFACE_ATTR_MAX];
387 blobmsg_parse(iface_attrs, IFACE_ATTR_MAX, tb, blobmsg_data(c), blobmsg_data_len(c));
389 if (!tb[IFACE_ATTR_INTERFACE] || !tb[IFACE_ATTR_IFNAME])
392 if (strcmp(name, blobmsg_get_string(tb[IFACE_ATTR_INTERFACE])) ||
393 strcmp(ifname, blobmsg_get_string(tb[IFACE_ATTR_IFNAME])))
396 if ((cur = tb[IFACE_ATTR_PREFIX])) {
397 if (blobmsg_type(cur) != BLOBMSG_TYPE_ARRAY || !blobmsg_check_attr(cur, false))
402 blobmsg_for_each_attr(d, cur, drem) {
414 if (!(ubus = ubus_connect(NULL))) {
415 syslog(LOG_ERR, "Unable to connect to ubus: %m");
419 netifd.cb = handle_update;
420 ubus_register_subscriber(ubus, &netifd);
422 ubus_add_uloop(ubus);
423 ubus_add_object(ubus, &main_object);
424 ubus_register_event_handler(ubus, &event_handler, "ubus.object.add");
425 if (!ubus_lookup_id(ubus, "network.interface", &objid))