#include <stdio.h>
#include <libubus.h>
-#include <libubox/avl.h>
+#include <libubox/vlist.h>
#include <libubox/uloop.h>
+#include "util.h"
#include "ubus.h"
#include "cache.h"
+#include "service.h"
+#include "interface.h"
static struct ubus_auto_conn conn;
static struct blob_buf b;
+static struct ubus_subscriber udebug_sub;
static int
-mdns_reload(struct ubus_context *ctx, struct ubus_object *obj,
+umdns_reload(struct ubus_context *ctx, struct ubus_object *obj,
struct ubus_request_data *req, const char *method,
struct blob_attr *msg)
{
+ service_init(1);
return 0;
}
static int
-mdns_scan(struct ubus_context *ctx, struct ubus_object *obj,
+umdns_update(struct ubus_context *ctx, struct ubus_object *obj,
struct ubus_request_data *req, const char *method,
struct blob_attr *msg)
{
- cache_scan();
+ cache_update();
return 0;
}
-static void
-mdns_add_records(const char *name)
-{
- struct cache_record *r, *q = avl_find_element(&records, name, r, avl);
- char *txt;
- char buffer[MAX_NAME_LEN];
-
- if (!q)
- return;
+enum {
+ BROWSE_SERVICE,
+ BROWSE_ARRAY,
+ BROWSE_ADDRESS,
+ BROWSE_MAX
+};
- do {
- r = q;
- switch (r->type) {
- case TYPE_TXT:
- if (r->txt && strlen(r->txt)) {
- txt = r->txt;
- do {
- blobmsg_add_string(&b, "txt", txt);
- txt = &txt[strlen(txt) + 1];
- } while (*txt);
- }
- break;
-
- case TYPE_SRV:
- if (r->port)
- blobmsg_add_u32(&b, "port", r->port);
- break;
-
- case TYPE_A:
- if ((r->rdlength == 4) && inet_ntop(AF_INET, r->rdata, buffer, INET6_ADDRSTRLEN))
- blobmsg_add_string(&b, "ipv4", buffer);
- break;
-
- case TYPE_AAAA:
- if ((r->rdlength == 16) && inet_ntop(AF_INET6, r->rdata, buffer, INET6_ADDRSTRLEN))
- blobmsg_add_string(&b, "ipv6", buffer);
- break;
- }
- q = avl_next_element(r, avl);
- } while (q && !strcmp(r->record, q->record));
-}
+static const struct blobmsg_policy browse_policy[] = {
+ [BROWSE_SERVICE] = { "service", BLOBMSG_TYPE_STRING },
+ [BROWSE_ARRAY] = { "array", BLOBMSG_TYPE_BOOL },
+ [BROWSE_ADDRESS] = { "address", BLOBMSG_TYPE_BOOL },
+};
static int
-mdns_browse(struct ubus_context *ctx, struct ubus_object *obj,
+umdns_browse(struct ubus_context *ctx, struct ubus_object *obj,
struct ubus_request_data *req, const char *method,
struct blob_attr *msg)
{
- struct cache_entry *s, *q;
- char buffer[MAX_NAME_LEN];
+ struct cache_service *s, *q;
+ char *buffer = (char *) mdns_buf;
+ struct blob_attr *data[BROWSE_MAX];
void *c1 = NULL, *c2;
+ char *service = NULL;
+ int array = 0;
+ bool address = true;
+
+ blobmsg_parse(browse_policy, BROWSE_MAX, data, blob_data(msg), blob_len(msg));
+ if (data[BROWSE_SERVICE])
+ service = blobmsg_get_string(data[BROWSE_SERVICE]);
+ if (data[BROWSE_ARRAY])
+ array = blobmsg_get_u8(data[BROWSE_ARRAY]);
+ if (data[BROWSE_ADDRESS])
+ address = blobmsg_get_bool(data[BROWSE_ADDRESS]);
- blob_buf_init(&b, 0);
- avl_for_each_element(&entries, s, avl) {
+ blob_buf_init(&b, 0);
+ avl_for_each_element(&services, s, avl) {
+ const char *hostname = buffer;
char *local;
- if (*((char *) s->avl.key) != '_')
- continue;
- snprintf(buffer, MAX_NAME_LEN, s->avl.key);
+
+ snprintf(buffer, MAX_NAME_LEN, "%s", (const char *) s->avl.key);
local = strstr(buffer, ".local");
if (local)
*local = '\0';
if (!strcmp(buffer, "_tcp") || !strcmp(buffer, "_udp"))
continue;
-
+ if (service && strcmp(buffer, service))
+ continue;
if (!c1) {
- char *type = cache_lookup_name(buffer);
c1 = blobmsg_open_table(&b, buffer);
- if (type)
- blobmsg_add_string(&b, ".desc", type);
}
- snprintf(buffer, MAX_NAME_LEN, s->entry);
+ snprintf(buffer, MAX_NAME_LEN, "%s", s->entry);
local = strstr(buffer, "._");
if (local)
*local = '\0';
c2 = blobmsg_open_table(&b, buffer);
strncat(buffer, ".local", MAX_NAME_LEN);
- mdns_add_records(buffer);
- mdns_add_records(s->entry);
+ if (s->iface)
+ blobmsg_add_string(&b, "iface", s->iface->name);
+ cache_dump_records(&b, s->entry, array, &hostname);
+ if (address)
+ cache_dump_records(&b, hostname, array, NULL);
blobmsg_close_table(&b, c2);
q = avl_next_element(s, avl);
- if (!q || avl_is_last(&entries, &s->avl) || strcmp(s->avl.key, q->avl.key)) {
+ if (!q || avl_is_last(&services, &s->avl) || strcmp(s->avl.key, q->avl.key)) {
blobmsg_close_table(&b, c1);
c1 = NULL;
}
return UBUS_STATUS_OK;
}
+enum {
+ HOSTS_ARRAY,
+ __HOSTS_MAX
+};
+static const struct blobmsg_policy hosts_policy[] = {
+ [HOSTS_ARRAY] = { "array", BLOBMSG_TYPE_BOOL }
+};
+
static int
-mdns_hosts(struct ubus_context *ctx, struct ubus_object *obj,
+umdns_hosts(struct ubus_context *ctx, struct ubus_object *obj,
struct ubus_request_data *req, const char *method,
struct blob_attr *msg)
{
- struct cache_entry *s;
- char buffer[MAX_NAME_LEN];
+ struct cache_record *prev = NULL;
+ struct blob_attr *tb[__HOSTS_MAX];
+ struct cache_record *r;
+ bool array = false;
void *c;
- blob_buf_init(&b, 0);
- avl_for_each_element(&entries, s, avl) {
- char *local;
- if (*((char *) s->avl.key) == '_')
+ blobmsg_parse(hosts_policy, __HOSTS_MAX, tb, blobmsg_data(msg), blobmsg_len(msg));
+ if (tb[HOSTS_ARRAY])
+ array = blobmsg_get_bool(tb[HOSTS_ARRAY]);
+
+ blob_buf_init(&b, 0);
+ avl_for_each_element(&records, r, avl) {
+ if (r->type != TYPE_A && r->type != TYPE_AAAA)
continue;
- snprintf(buffer, MAX_NAME_LEN, s->entry);
- local = strstr(buffer, "._");
- if (local)
- *local = '\0';
- c = blobmsg_open_table(&b, buffer);
- strncat(buffer, ".local", MAX_NAME_LEN);
- mdns_add_records(buffer);
- mdns_add_records(s->entry);
- blobmsg_close_table(&b, c);
+ /* Query each domain just once */
+ if (!prev || strcmp(r->record, prev->record)) {
+ c = blobmsg_open_table(&b, r->record);
+ cache_dump_records(&b, r->record, array, NULL);
+ blobmsg_close_table(&b, c);
+ }
+ prev = r;
}
ubus_send_reply(ctx, req, b.head);
return UBUS_STATUS_OK;
}
-static const struct ubus_method mdns_methods[] = {
- UBUS_METHOD_NOARG("scan", mdns_scan),
- UBUS_METHOD_NOARG("browse", mdns_browse),
- UBUS_METHOD_NOARG("hosts", mdns_hosts),
- UBUS_METHOD_NOARG("reload", mdns_reload),
+enum {
+ CFG_INTERFACES,
+ CFG_KEEP,
+ CFG_MAX
};
-static struct ubus_object_type mdns_object_type =
- UBUS_OBJECT_TYPE("mdns", mdns_methods);
+static const struct blobmsg_policy config_policy[] = {
+ [CFG_INTERFACES] = { "interfaces", BLOBMSG_TYPE_ARRAY },
+ [CFG_KEEP] = { "keep", BLOBMSG_TYPE_BOOL },
+};
-static struct ubus_object mdns_object = {
- .name = "mdns",
- .type = &mdns_object_type,
- .methods = mdns_methods,
- .n_methods = ARRAY_SIZE(mdns_methods),
+static int
+umdns_set_config(struct ubus_context *ctx, struct ubus_object *obj,
+ struct ubus_request_data *req, const char *method,
+ struct blob_attr *msg)
+{
+ struct blob_attr *data[CFG_MAX], *cur;
+ int rem, keep = false;
+
+ blobmsg_parse(config_policy, CFG_MAX, data, blob_data(msg), blob_len(msg));
+ if (!data[CFG_INTERFACES])
+ return UBUS_STATUS_INVALID_ARGUMENT;
+
+ if (!blobmsg_check_attr_list(data[CFG_INTERFACES], BLOBMSG_TYPE_STRING))
+ return UBUS_STATUS_INVALID_ARGUMENT;
+
+ keep = data[CFG_KEEP] && blobmsg_get_bool(data[CFG_KEEP]);
+ if (!keep) {
+ vlist_update(&interfaces);
+ ubus_notify(ctx, obj, "set_config", NULL, 1000);
+ }
+
+ blobmsg_for_each_attr(cur, data[CFG_INTERFACES], rem)
+ interface_add(blobmsg_data(cur));
+
+ if (!keep)
+ vlist_flush(&interfaces);
+
+ return 0;
+}
+
+enum query_attr {
+ QUERY_QUESTION,
+ QUERY_IFACE,
+ QUERY_TYPE,
+ QUERY_MAX
+};
+
+static const struct blobmsg_policy query_policy[QUERY_MAX] = {
+ [QUERY_QUESTION]= { "question", BLOBMSG_TYPE_STRING },
+ [QUERY_IFACE] = { "interface", BLOBMSG_TYPE_STRING },
+ [QUERY_TYPE] = { "type", BLOBMSG_TYPE_INT32 },
};
+static int
+umdns_query(struct ubus_context *ctx, struct ubus_object *obj,
+ struct ubus_request_data *req, const char *method,
+ struct blob_attr *msg)
+{
+ struct blob_attr *tb[QUERY_MAX], *c;
+ const char *question = C_DNS_SD;
+ const char *ifname;
+ int type = TYPE_ANY;
+
+ blobmsg_parse(query_policy, QUERY_MAX, tb, blob_data(msg), blob_len(msg));
+
+ if (!(c = tb[QUERY_IFACE]))
+ return UBUS_STATUS_INVALID_ARGUMENT;
+
+ ifname = blobmsg_get_string(c);
+
+ if ((c = tb[QUERY_QUESTION]))
+ question = blobmsg_get_string(c);
+
+ if ((c = tb[QUERY_TYPE]))
+ type = blobmsg_get_u32(c);
+
+ struct interface *iface_v4 = interface_get(ifname, SOCK_MC_IPV4);
+ struct interface *iface_v6 = interface_get(ifname, SOCK_MC_IPV6);
+
+ if (!iface_v4 && !iface_v6)
+ return UBUS_STATUS_NOT_FOUND;
+
+ if (!strcmp(method, "query")) {
+ if (iface_v4)
+ dns_send_question(iface_v4, NULL, question, type, 1);
+
+ if (iface_v6)
+ dns_send_question(iface_v6, NULL, question, type, 1);
+
+ return UBUS_STATUS_OK;
+ } else if (!strcmp(method, "fetch")) {
+ blob_buf_init(&b, 0);
+ void *k = blobmsg_open_array(&b, "records");
+ cache_dump_recursive(&b, question, type, iface_v4 ? iface_v4 : iface_v6);
+ blobmsg_close_array(&b, k);
+ ubus_send_reply(ctx, req, b.head);
+ return UBUS_STATUS_OK;
+ } else {
+ return UBUS_STATUS_INVALID_ARGUMENT;
+ }
+}
+
+
+static const struct ubus_method umdns_methods[] = {
+ UBUS_METHOD("set_config", umdns_set_config, config_policy),
+ UBUS_METHOD("query", umdns_query, query_policy),
+ UBUS_METHOD("fetch", umdns_query, query_policy),
+ UBUS_METHOD("browse", umdns_browse, browse_policy),
+ UBUS_METHOD_NOARG("update", umdns_update),
+ UBUS_METHOD("hosts", umdns_hosts, hosts_policy),
+ UBUS_METHOD_NOARG("reload", umdns_reload),
+};
+
+static struct ubus_object_type umdns_object_type =
+ UBUS_OBJECT_TYPE("umdns", umdns_methods);
+
+static struct ubus_object umdns_object = {
+ .name = "umdns",
+ .type = &umdns_object_type,
+ .methods = umdns_methods,
+ .n_methods = ARRAY_SIZE(umdns_methods),
+};
+
+static struct blob_attr *
+find_attr(struct blob_attr *attr, const char *name, enum blobmsg_type type)
+{
+ struct blobmsg_policy policy = { name, type };
+ struct blob_attr *ret;
+
+ if (!attr)
+ return NULL;
+
+ blobmsg_parse_attr(&policy, 1, &ret, attr);
+
+ return ret;
+}
+
+static void
+umdns_udebug_config_cb(struct blob_attr *data)
+{
+ enum {
+ CFG_ATTR_ENABLED,
+ __CFG_ATTR_MAX
+ };
+ static const struct blobmsg_policy policy[__CFG_ATTR_MAX] = {
+ [CFG_ATTR_ENABLED] = { "enabled", BLOBMSG_TYPE_STRING },
+ };
+ struct blob_attr *tb[__CFG_ATTR_MAX];
+ bool en;
+
+ data = find_attr(data, "service", BLOBMSG_TYPE_TABLE);
+ data = find_attr(data, "umdns", BLOBMSG_TYPE_TABLE);
+ if (!data)
+ return;
+
+ blobmsg_parse_attr(policy, __CFG_ATTR_MAX, tb, data);
+ if (!tb[CFG_ATTR_ENABLED])
+ return;
+
+ en = !!atoi(blobmsg_get_string(tb[CFG_ATTR_ENABLED]));
+ umdns_udebug_set_enabled(en);
+}
+
+static int
+umdns_udebug_notify_cb(struct ubus_context *ctx, struct ubus_object *obj,
+ struct ubus_request_data *req, const char *method,
+ struct blob_attr *msg)
+{
+ umdns_udebug_config_cb(msg);
+
+ return 0;
+}
+
+static void
+umdns_udebug_req_cb(struct ubus_request *req, int type, struct blob_attr *msg)
+{
+ umdns_udebug_config_cb(msg);
+}
+
+static bool
+umdns_udebug_sub_cb(struct ubus_context *ctx, struct ubus_subscriber *sub,
+ const char *path)
+{
+ return !strcmp(path, "udebug");
+}
+
+
static void
ubus_connect_handler(struct ubus_context *ctx)
{
+ uint32_t id;
int ret;
- ret = ubus_add_object(ctx, &mdns_object);
+ ret = ubus_add_object(ctx, &umdns_object);
if (ret)
fprintf(stderr, "Failed to add object: %s\n", ubus_strerror(ret));
+
+ udebug_sub.cb = umdns_udebug_notify_cb;
+ udebug_sub.new_obj_cb = umdns_udebug_sub_cb;
+ ubus_register_subscriber(&conn.ctx, &udebug_sub);
+ if (ubus_lookup_id(&conn.ctx, "udebug", &id) == 0) {
+ ubus_subscribe(&conn.ctx, &udebug_sub, id);
+ ubus_invoke(&conn.ctx, id, "get_config", NULL, umdns_udebug_req_cb, NULL, 1000);
+ }
}
void
conn.cb = ubus_connect_handler;
ubus_auto_connect(&conn);
}
+
+int ubus_service_list(ubus_data_handler_t cb)
+{
+ uint32_t id;
+ int ret;
+
+ blob_buf_init(&b, 0);
+ ret = ubus_lookup_id(&conn.ctx, "service", &id);
+ if (ret)
+ return ret;
+
+ return ubus_invoke(&conn.ctx, id, "list", b.head, cb, NULL, 5 * 1000);
+}
projects / project / mdnsd.git / blobdiff