static bool
filter_resource(oc_resource_t *resource, const char *rt, int rt_len,
CborEncoder *links)
{
int i;
bool match = true;
if (rt_len > 0) {
match = false;
for (i = 0; i < oc_string_array_get_allocated_size(resource->types); i++) {
int size = oc_string_array_get_item_size(resource->types, i);
const char *t =
(const char *)oc_string_array_get_item(resource->types, i);
if (rt_len == size && strncmp(rt, t, rt_len) == 0) {
match = true;
break;
}
}
}
if (!match) {
return false;
}
oc_rep_start_object(*links, res);
// uri
oc_rep_set_text_string(res, href, oc_string(resource->uri));
// rt
oc_rep_set_array(res, rt);
for (i = 0; i < oc_string_array_get_allocated_size(resource->types); i++) {
int size = oc_string_array_get_item_size(resource->types, i);
const char *t = (const char *)oc_string_array_get_item(resource->types, i);
if (size > 0)
oc_rep_add_text_string(rt, t);
}
oc_rep_close_array(res, rt);
// if
oc_core_encode_interfaces_mask(oc_rep_object(res), resource->interfaces);
// p
oc_rep_set_object(res, p);
oc_rep_set_uint(p, bm, resource->properties & ~OC_PERIODIC);
#ifdef OC_SECURITY
if (resource->properties & OC_SECURE) {
oc_rep_set_boolean(p, sec, true);
oc_rep_set_uint(p, port, oc_connectivity_get_dtls_port());
}
#endif /* OC_SECURITY */
oc_rep_close_object(res, p);
oc_rep_end_object(*links, res);
return true;
}
static oc_discovery_flags_t
discovery(const char *di, const char *uri, oc_string_array_t types,
oc_interface_mask_t interfaces, oc_server_handle_t *server)
{
int i;
int uri_len = strlen(uri);
uri_len = (uri_len >= MAX_URI_LENGTH) ? MAX_URI_LENGTH - 1 : uri_len;
for (i = 0; i < oc_string_array_get_allocated_size(types); i++) {
char *t = oc_string_array_get_item(types, i);
if (strlen(t) == 11 && strncmp(t, "oic.r.light", 11) == 0) {
memcpy(&light_server, server, sizeof(oc_server_handle_t));
strncpy(light_1, uri, uri_len);
light_1[uri_len] = '\0';
oc_do_observe(light_1, &light_server, NULL, &observe_light,
LOW_QOS);
os_callout_reset(&callout, 30 * OS_TICKS_PER_SEC);
return OC_STOP_DISCOVERY;
}
}
return OC_CONTINUE_DISCOVERY;
}
oc_discovery_flags_t
oc_ri_process_discovery_payload(struct coap_packet_rx *rsp,
oc_discovery_cb_t *handler,
oc_endpoint_t *endpoint)
{
oc_discovery_flags_t ret = OC_CONTINUE_DISCOVERY;
oc_string_t uri = {
.os_sz = 0,
.os_str = NULL
};
oc_string_t di = {
.os_sz = 0,
.os_str = NULL
};
bool secure = false;
uint16_t dtls_port = 0, default_port = endpoint->oe_ip.v6.port;
oc_string_array_t types = {};
oc_interface_mask_t interfaces = 0;
oc_server_handle_t handle;
uint16_t data_off;
struct os_mbuf *m;
int len;
memcpy(&handle.endpoint, endpoint, sizeof(oc_endpoint_t));
oc_rep_t *array = 0, *rep;
len = coap_get_payload(rsp, &m, &data_off);
int s = oc_parse_rep(m, data_off, len, &rep);
if (s == 0)
array = rep;
while (array != NULL) {
oc_rep_t *device_map = array->value_object;
while (device_map != NULL) {
switch (device_map->type) {
case STRING:
if (oc_string_len(device_map->name) == 2 &&
strncmp(oc_string(device_map->name), "di", 2) == 0)
di = device_map->value_string;
break;
default:
break;
}
device_map = device_map->next;
}
device_map = array->value_object;
while (device_map != NULL) {
switch (device_map->type) {
case OBJECT_ARRAY: {
oc_rep_t *links = device_map->value_object_array;
while (links != NULL) {
switch (links->type) {
case OBJECT: {
oc_rep_t *resource_info = links->value_object;
while (resource_info != NULL) {
switch (resource_info->type) {
case STRING:
uri = resource_info->value_string;
break;
case STRING_ARRAY:
if (oc_string_len(resource_info->name) == 2 &&
strncmp(oc_string(resource_info->name), "rt", 2) == 0)
types = resource_info->value_array;
else {
interfaces = 0;
int i;
for (i = 0; i < oc_string_array_get_allocated_size(
resource_info->value_array);
i++) {
interfaces |= oc_ri_get_interface_mask(
oc_string_array_get_item(resource_info->value_array, i),
oc_string_array_get_item_size(resource_info->value_array,
i));
}
}
break;
case OBJECT: {
oc_rep_t *policy_info = resource_info->value_object;
while (policy_info != NULL) {
if (policy_info->type == INT &&
oc_string_len(policy_info->name) == 4 &&
strncmp(oc_string(policy_info->name), "port", 4) == 0) {
dtls_port = policy_info->value_int;
}
if (policy_info->type == BOOL &&
oc_string_len(policy_info->name) == 3 &&
strncmp(oc_string(policy_info->name), "sec", 3) == 0 &&
policy_info->value_boolean == true) {
secure = true;
}
policy_info = policy_info->next;
}
} break;
default:
break;
}
resource_info = resource_info->next;
}
if (secure) {
handle.endpoint.oe_ip.v6.port = dtls_port;
handle.endpoint.oe_ip.flags |= SECURED;
} else {
handle.endpoint.oe_ip.v6.port = default_port;
handle.endpoint.oe_ip.flags &= ~SECURED;
}
if (handler(oc_string(di), oc_string(uri), types, interfaces,
&handle) == OC_STOP_DISCOVERY) {
ret = OC_STOP_DISCOVERY;
goto done;
}
dtls_port = 0;
secure = false;
} break;
default:
break;
}
links = links->next;
}
} break;
default:
break;
}
device_map = device_map->next;
}
array = array->next;
}
done:
oc_free_rep(rep);
return ret;
}
/* Parse single property */
static void
oc_parse_rep_value(CborValue *value, oc_rep_t **rep, CborError *err)
{
size_t k, len;
CborValue map, array;
*rep = _alloc_rep();
oc_rep_t *cur = *rep, **prev = 0;
cur->next = 0;
cur->value_object_array = 0;
/* key */
*err |= cbor_value_calculate_string_length(value, &len);
len++;
oc_alloc_string(&cur->name, len);
*err |= cbor_value_copy_text_string(value, (char *)oc_string(cur->name), &len,
NULL);
*err |= cbor_value_advance(value);
/* value */
switch (value->type) {
case CborIntegerType:
*err |= cbor_value_get_int64(value, &cur->value_int);
cur->type = INT;
break;
case CborBooleanType:
*err |= cbor_value_get_boolean(value, &cur->value_boolean);
cur->type = BOOL;
break;
case CborDoubleType:
*err |= cbor_value_get_double(value, &cur->value_double);
cur->type = DOUBLE;
break;
case CborByteStringType:
*err |= cbor_value_calculate_string_length(value, &len);
len++;
oc_alloc_string(&cur->value_string, len);
*err |= cbor_value_copy_byte_string(
value, oc_cast(cur->value_string, uint8_t), &len, NULL);
cur->type = BYTE_STRING;
break;
case CborTextStringType:
*err |= cbor_value_calculate_string_length(value, &len);
len++;
oc_alloc_string(&cur->value_string, len);
*err |= cbor_value_copy_text_string(value, oc_string(cur->value_string),
&len, NULL);
cur->type = STRING;
break;
case CborMapType: /* when value is a map/object */ {
oc_rep_t **obj = &cur->value_object; // object points to list of properties
*err |= cbor_value_enter_container(value, &map);
while (!cbor_value_at_end(&map)) {
oc_parse_rep_value(&map, obj, err);
(*obj)->next = 0;
obj = &(*obj)->next;
*err |= cbor_value_advance(&map);
}
cur->type = OBJECT;
} break;
case CborArrayType:
*err |= cbor_value_enter_container(value, &array);
len = 0;
cbor_value_get_array_length(value, &len);
if (len == 0) {
CborValue t = array;
while (!cbor_value_at_end(&t)) {
len++;
cbor_value_advance(&t);
}
}
k = 0;
while (!cbor_value_at_end(&array)) {
switch (array.type) {
case CborIntegerType:
if (k == 0) {
oc_new_int_array(&cur->value_array, len);
cur->type = INT | ARRAY;
}
*err |=
cbor_value_get_int64(&array, oc_int_array(cur->value_array) + k);
break;
case CborDoubleType:
if (k == 0) {
oc_new_double_array(&cur->value_array, len);
cur->type = DOUBLE | ARRAY;
}
*err |=
cbor_value_get_double(&array, oc_double_array(cur->value_array) + k);
break;
case CborBooleanType:
if (k == 0) {
oc_new_bool_array(&cur->value_array, len);
cur->type = BOOL | ARRAY;
}
*err |=
cbor_value_get_boolean(&array, oc_bool_array(cur->value_array) + k);
break;
case CborByteStringType:
if (k == 0) {
oc_new_string_array(&cur->value_array, len);
cur->type = BYTE_STRING | ARRAY;
}
*err |= cbor_value_calculate_string_length(&array, &len);
len++;
*err |= cbor_value_copy_byte_string(
&array, (uint8_t *)oc_string_array_get_item(cur->value_array, k),
&len, NULL);
break;
case CborTextStringType:
if (k == 0) {
oc_new_string_array(&cur->value_array, len);
cur->type = STRING | ARRAY;
}
*err |= cbor_value_calculate_string_length(&array, &len);
len++;
*err |= cbor_value_copy_text_string(
&array, (char *)oc_string_array_get_item(cur->value_array, k), &len,
NULL);
break;
case CborMapType:
if (k == 0) {
cur->type = OBJECT | ARRAY;
cur->value_object_array = _alloc_rep();
prev = &cur->value_object_array;
} else {
(*prev)->next = _alloc_rep();
prev = &(*prev)->next;
}
(*prev)->type = OBJECT;
(*prev)->next = 0;
oc_rep_t **obj = &(*prev)->value_object;
/* Process a series of properties that make up an object of the array */
*err |= cbor_value_enter_container(&array, &map);
while (!cbor_value_at_end(&map)) {
oc_parse_rep_value(&map, obj, err);
obj = &(*obj)->next;
*err |= cbor_value_advance(&map);
}
break;
default:
break;
}
k++;
*err |= cbor_value_advance(&array);
}
break;
default:
break;
}
}