static qdr_conn_identifier_t *qdr_route_declare_id_CT(qdr_core_t *core,
qd_iterator_t *container,
qd_iterator_t *connection)
{
qdr_conn_identifier_t *cid = 0;
if (container && connection) {
qd_iterator_reset_view(container, ITER_VIEW_ADDRESS_HASH);
qd_iterator_annotate_prefix(container, CONTAINER_PREFIX);
qd_hash_retrieve(core->conn_id_hash, container, (void**) &cid);
if (!cid) {
qd_iterator_reset_view(connection, ITER_VIEW_ADDRESS_HASH);
qd_iterator_annotate_prefix(connection, CONNECTION_PREFIX);
qd_hash_retrieve(core->conn_id_hash, connection, (void**) &cid);
}
if (!cid) {
cid = new_qdr_conn_identifier_t();
ZERO(cid);
//
// The container and the connection will represent the same connection.
//
qd_hash_insert(core->conn_id_hash, container, cid, &cid->container_hash_handle);
qd_hash_insert(core->conn_id_hash, connection, cid, &cid->connection_hash_handle);
}
}
else if (container) {
qd_iterator_reset_view(container, ITER_VIEW_ADDRESS_HASH);
qd_iterator_annotate_prefix(container, CONTAINER_PREFIX);
qd_hash_retrieve(core->conn_id_hash, container, (void**) &cid);
if (!cid) {
cid = new_qdr_conn_identifier_t();
ZERO(cid);
qd_hash_insert(core->conn_id_hash, container, cid, &cid->container_hash_handle);
}
}
else if (connection) {
qd_iterator_reset_view(connection, ITER_VIEW_ADDRESS_HASH);
qd_iterator_annotate_prefix(connection, CONNECTION_PREFIX);
qd_hash_retrieve(core->conn_id_hash, connection, (void**) &cid);
if (!cid) {
cid = new_qdr_conn_identifier_t();
ZERO(cid);
qd_hash_insert(core->conn_id_hash, connection, cid, &cid->connection_hash_handle);
}
}
return cid;
}
void qd_iterator_annotate_prefix(qd_iterator_t *iter, char prefix)
{
if (iter) {
iter->prefix_override = prefix;
qd_iterator_reset_view(iter, iter->view);
}
}
static char *test_trim(void *context)
{
qd_iterator_t *iter = qd_iterator_string("testing.trim", ITER_VIEW_ALL);
qd_iterator_trim_view(iter, 7);
if (!qd_iterator_equal(iter, (unsigned char*) "testing"))
return "Trim on ITER_VIEW_ALL failed (1)";
qd_iterator_reset_view(iter, ITER_VIEW_ALL);
if (!qd_iterator_equal(iter, (unsigned char*) "testing.trim"))
return "Trim on ITER_VIEW_ALL failed (2)";
qd_iterator_advance(iter, 4);
qd_iterator_trim_view(iter, 5);
if (!qd_iterator_equal(iter, (unsigned char*) "ing.t"))
return "Trim on ITER_VIEW_ALL failed (3)";
qd_iterator_reset_view(iter, ITER_VIEW_ADDRESS_HASH);
qd_iterator_trim_view(iter, 9);
if (!qd_iterator_equal(iter, (unsigned char*) "M0testing"))
return "Trim on ITER_VIEW_ADDRESS_HASH failed";
qd_iterator_reset(iter);
qd_iterator_annotate_space(iter, "my_space.", 9);
qd_iterator_trim_view(iter, 18);
if (!qd_iterator_equal(iter, (unsigned char*) "M0my_space.testing"))
return "Trim on ITER_VIEW_ADDRESS_HASH (with space 1) failed";
qd_iterator_reset(iter);
qd_iterator_trim_view(iter, 10);
if (!qd_iterator_equal(iter, (unsigned char*) "M0my_space"))
return "Trim on ITER_VIEW_ADDRESS_HASH (in space 1) failed";
qd_iterator_reset(iter);
qd_iterator_trim_view(iter, 2);
if (!qd_iterator_equal(iter, (unsigned char*) "M0"))
return "Trim on ITER_VIEW_ADDRESS_HASH (in annotation 1) failed";
qd_iterator_reset(iter);
qd_iterator_trim_view(iter, 1);
if (!qd_iterator_equal(iter, (unsigned char*) "M"))
return "Trim on ITER_VIEW_ADDRESS_HASH (in annotation 2) failed";
qd_iterator_free(iter);
return 0;
}
qdr_auto_link_t *qdr_route_add_auto_link_CT(qdr_core_t *core,
qd_iterator_t *name,
qd_parsed_field_t *addr_field,
qd_direction_t dir,
int phase,
qd_parsed_field_t *container_field,
qd_parsed_field_t *connection_field,
qd_parsed_field_t *external_addr)
{
qdr_auto_link_t *al = new_qdr_auto_link_t();
//
// Set up the auto_link structure
//
ZERO(al);
al->identity = qdr_identifier(core);
al->name = name ? (char*) qd_iterator_copy(name) : 0;
al->dir = dir;
al->phase = phase;
al->state = QDR_AUTO_LINK_STATE_INACTIVE;
al->external_addr = external_addr ? (char*) qd_iterator_copy(qd_parse_raw(external_addr)) : 0;
//
// Find or create an address for the auto_link destination
//
qd_iterator_t *iter = qd_parse_raw(addr_field);
qd_iterator_reset_view(iter, ITER_VIEW_ADDRESS_HASH);
qd_iterator_annotate_phase(iter, (char) phase + '0');
qd_hash_retrieve(core->addr_hash, iter, (void*) &al->addr);
if (!al->addr) {
al->addr = qdr_address_CT(core, qdr_treatment_for_address_CT(core, 0, iter, 0, 0));
DEQ_INSERT_TAIL(core->addrs, al->addr);
qd_hash_insert(core->addr_hash, iter, al->addr, &al->addr->hash_handle);
}
al->addr->ref_count++;
//
// Find or create a connection identifier structure for this auto_link
//
if (container_field || connection_field) {
al->conn_id = qdr_route_declare_id_CT(core, qd_parse_raw(container_field), qd_parse_raw(connection_field));
DEQ_INSERT_TAIL_N(REF, al->conn_id->auto_link_refs, al);
qdr_connection_ref_t * cref = DEQ_HEAD(al->conn_id->connection_refs);
while (cref) {
qdr_auto_link_activate_CT(core, al, cref->conn);
cref = DEQ_NEXT(cref);
}
}
//
// Add the auto_link to the core list
//
DEQ_INSERT_TAIL(core->auto_links, al);
return al;
}
static char* test_view_global_no_host(void *context)
{
qd_iterator_t *iter = qd_iterator_string("global/sub", ITER_VIEW_ALL);
if (!qd_iterator_equal(iter, (unsigned char*) "global/sub"))
return "ITER_VIEW_ALL failed";
qd_iterator_reset_view(iter, ITER_VIEW_ADDRESS_NO_HOST);
if (!qd_iterator_equal(iter, (unsigned char*) "global/sub"))
return "ITER_VIEW_ADDRESS_NO_HOST failed";
qd_iterator_reset_view(iter, ITER_VIEW_ADDRESS_HASH);
if (!qd_iterator_equal(iter, (unsigned char*) "M0global/sub"))
return "ITER_VIEW_ADDRESS_HASH failed";
qd_iterator_free(iter);
return 0;
}
qdr_link_route_t *qdr_route_add_link_route_CT(qdr_core_t *core,
qd_iterator_t *name,
qd_parsed_field_t *prefix_field,
qd_parsed_field_t *container_field,
qd_parsed_field_t *connection_field,
qd_address_treatment_t treatment,
qd_direction_t dir)
{
qdr_link_route_t *lr = new_qdr_link_route_t();
//
// Set up the link_route structure
//
ZERO(lr);
lr->identity = qdr_identifier(core);
lr->name = name ? (char*) qd_iterator_copy(name) : 0;
lr->dir = dir;
lr->treatment = treatment;
//
// Find or create an address for link-attach routing
//
qd_iterator_t *iter = qd_parse_raw(prefix_field);
qd_iterator_reset_view(iter, ITER_VIEW_ADDRESS_HASH);
qd_iterator_annotate_prefix(iter, dir == QD_INCOMING ? 'C' : 'D');
qd_hash_retrieve(core->addr_hash, iter, (void*) &lr->addr);
if (!lr->addr) {
lr->addr = qdr_address_CT(core, treatment);
DEQ_INSERT_TAIL(core->addrs, lr->addr);
qd_hash_insert(core->addr_hash, iter, lr->addr, &lr->addr->hash_handle);
}
lr->addr->ref_count++;
//
// Find or create a connection identifier structure for this link route
//
if (container_field || connection_field) {
lr->conn_id = qdr_route_declare_id_CT(core, qd_parse_raw(container_field), qd_parse_raw(connection_field));
DEQ_INSERT_TAIL_N(REF, lr->conn_id->link_route_refs, lr);
qdr_connection_ref_t * cref = DEQ_HEAD(lr->conn_id->connection_refs);
while (cref) {
qdr_link_route_activate_CT(core, lr, cref->conn);
cref = DEQ_NEXT(cref);
}
}
//
// Add the link route to the core list
//
DEQ_INSERT_TAIL(core->link_routes, lr);
return lr;
}
qd_iterator_t* qd_iterator_binary(const char *text, int length, qd_iterator_view_t view)
{
qd_iterator_t *iter = new_qd_iterator_t();
if (!iter)
return 0;
ZERO(iter);
iter->start_pointer.cursor = (unsigned char*) text;
iter->start_pointer.remaining = length;
iter->phase = '0';
qd_iterator_reset_view(iter, view);
return iter;
}
qd_iterator_t *qd_iterator_buffer(qd_buffer_t *buffer, int offset, int length, qd_iterator_view_t view)
{
qd_iterator_t *iter = new_qd_iterator_t();
if (!iter)
return 0;
ZERO(iter);
iter->start_pointer.buffer = buffer;
iter->start_pointer.cursor = qd_buffer_base(buffer) + offset;
iter->start_pointer.remaining = length;
iter->phase = '0';
qd_iterator_reset_view(iter, view);
return iter;
}
static qd_iterator_t *router_annotate_message(qd_router_t *router,
qd_parsed_field_t *in_ma,
qd_message_t *msg,
qd_bitmask_t **link_exclusions,
bool strip_inbound_annotations)
{
qd_iterator_t *ingress_iter = 0;
qd_parsed_field_t *trace = 0;
qd_parsed_field_t *ingress = 0;
qd_parsed_field_t *to = 0;
qd_parsed_field_t *phase = 0;
*link_exclusions = 0;
if (in_ma && !strip_inbound_annotations) {
uint32_t count = qd_parse_sub_count(in_ma);
bool done = false;
for (uint32_t idx = 0; idx < count && !done; idx++) {
qd_parsed_field_t *sub = qd_parse_sub_key(in_ma, idx);
if (!sub)
continue;
qd_iterator_t *iter = qd_parse_raw(sub);
if (!iter)
continue;
if (qd_iterator_equal(iter, (unsigned char*) QD_MA_TRACE)) {
trace = qd_parse_sub_value(in_ma, idx);
} else if (qd_iterator_equal(iter, (unsigned char*) QD_MA_INGRESS)) {
ingress = qd_parse_sub_value(in_ma, idx);
} else if (qd_iterator_equal(iter, (unsigned char*) QD_MA_TO)) {
to = qd_parse_sub_value(in_ma, idx);
} else if (qd_iterator_equal(iter, (unsigned char*) QD_MA_PHASE)) {
phase = qd_parse_sub_value(in_ma, idx);
}
done = trace && ingress && to && phase;
}
}
//
// QD_MA_TRACE:
// If there is a trace field, append this router's ID to the trace.
// If the router ID is already in the trace the msg has looped.
//
qd_composed_field_t *trace_field = qd_compose_subfield(0);
qd_compose_start_list(trace_field);
if (trace) {
if (qd_parse_is_list(trace)) {
//
// Create a link-exclusion map for the items in the trace. This map will
// contain a one-bit for each link that leads to a neighbor router that
// the message has already passed through.
//
*link_exclusions = qd_tracemask_create(router->tracemask, trace);
//
// Append this router's ID to the trace.
//
uint32_t idx = 0;
qd_parsed_field_t *trace_item = qd_parse_sub_value(trace, idx);
while (trace_item) {
qd_iterator_t *iter = qd_parse_raw(trace_item);
qd_iterator_reset_view(iter, ITER_VIEW_ALL);
qd_compose_insert_string_iterator(trace_field, iter);
idx++;
trace_item = qd_parse_sub_value(trace, idx);
}
}
}
qd_compose_insert_string(trace_field, node_id);
qd_compose_end_list(trace_field);
qd_message_set_trace_annotation(msg, trace_field);
//
// QD_MA_TO:
// Preserve the existing value.
//
if (to) {
qd_composed_field_t *to_field = qd_compose_subfield(0);
qd_compose_insert_string_iterator(to_field, qd_parse_raw(to));
qd_message_set_to_override_annotation(msg, to_field);
}
//
// QD_MA_PHASE:
// Preserve the existing value.
//
if (phase) {
int phase_val = qd_parse_as_int(phase);
qd_message_set_phase_annotation(msg, phase_val);
}
//
// QD_MA_INGRESS:
// If there is no ingress field, annotate the ingress as
// this router else keep the original field.
//
qd_composed_field_t *ingress_field = qd_compose_subfield(0);
if (ingress && qd_parse_is_scalar(ingress)) {
ingress_iter = qd_parse_raw(ingress);
qd_compose_insert_string_iterator(ingress_field, ingress_iter);
} else
qd_compose_insert_string(ingress_field, node_id);
qd_message_set_ingress_annotation(msg, ingress_field);
//
// Return the iterator to the ingress field _if_ it was present.
// If we added the ingress, return NULL.
//
return ingress_iter;
}
/**
* Inbound Delivery Handler
*/
static void AMQP_rx_handler(void* context, qd_link_t *link, pn_delivery_t *pnd)
{
qd_router_t *router = (qd_router_t*) context;
pn_link_t *pn_link = qd_link_pn(link);
qdr_link_t *rlink = (qdr_link_t*) qd_link_get_context(link);
qdr_delivery_t *delivery = 0;
qd_message_t *msg;
//
// Receive the message into a local representation. If the returned message
// pointer is NULL, we have not yet received a complete message.
//
// Note: In the link-routing case, consider cutting the message through. There's
// no reason to wait for the whole message to be received before starting to
// send it.
//
msg = qd_message_receive(pnd);
if (!msg)
return;
//
// Consume the delivery.
//
pn_link_advance(pn_link);
//
// If there's no router link, free the message and finish. It's likely that the link
// is closing.
//
if (!rlink) {
qd_message_free(msg);
return;
}
//
// Handle the link-routed case
//
if (qdr_link_is_routed(rlink)) {
pn_delivery_tag_t dtag = pn_delivery_tag(pnd);
delivery = qdr_link_deliver_to_routed_link(rlink, msg, pn_delivery_settled(pnd), (uint8_t*) dtag.start, dtag.size);
if (delivery) {
if (pn_delivery_settled(pnd))
pn_delivery_settle(pnd);
else {
pn_delivery_set_context(pnd, delivery);
qdr_delivery_set_context(delivery, pnd);
qdr_delivery_incref(delivery);
}
}
return;
}
//
// Determine if the incoming link is anonymous. If the link is addressed,
// there are some optimizations we can take advantage of.
//
bool anonymous_link = qdr_link_is_anonymous(rlink);
//
// Determine if the user of this connection is allowed to proxy the
// user_id of messages. A message user_id is proxied when the
// property value differs from the authenticated user name of the connection.
// If the user is not allowed to proxy the user_id then the message user_id
// must be blank or it must be equal to the connection user name.
//
bool check_user = false;
qd_connection_t *conn = qd_link_connection(link);
if (conn->policy_settings)
check_user = !conn->policy_settings->allowUserIdProxy;
//
// Validate the content of the delivery as an AMQP message. This is done partially, only
// to validate that we can find the fields we need to route the message.
//
// If the link is anonymous, we must validate through the message properties to find the
// 'to' field. If the link is not anonymous, we don't need the 'to' field as we will be
// using the address from the link target.
//
qd_message_depth_t validation_depth = (anonymous_link || check_user) ? QD_DEPTH_PROPERTIES : QD_DEPTH_MESSAGE_ANNOTATIONS;
bool valid_message = qd_message_check(msg, validation_depth);
if (valid_message) {
if (check_user) {
// This connection must not allow proxied user_id
qd_iterator_t *userid_iter = qd_message_field_iterator(msg, QD_FIELD_USER_ID);
if (userid_iter) {
// The user_id property has been specified
if (qd_iterator_remaining(userid_iter) > 0) {
// user_id property in message is not blank
if (!qd_iterator_equal(userid_iter, (const unsigned char *)conn->user_id)) {
// This message is rejected: attempted user proxy is disallowed
qd_log(router->log_source, QD_LOG_DEBUG, "Message rejected due to user_id proxy violation. User:%s", conn->user_id);
pn_link_flow(pn_link, 1);
pn_delivery_update(pnd, PN_REJECTED);
pn_delivery_settle(pnd);
qd_message_free(msg);
qd_iterator_free(userid_iter);
return;
}
}
qd_iterator_free(userid_iter);
}
}
qd_parsed_field_t *in_ma = qd_message_message_annotations(msg);
qd_bitmask_t *link_exclusions;
bool strip = qdr_link_strip_annotations_in(rlink);
qd_iterator_t *ingress_iter = router_annotate_message(router, in_ma, msg, &link_exclusions, strip);
if (anonymous_link) {
qd_iterator_t *addr_iter = 0;
int phase = 0;
//
// If the message has delivery annotations, get the to-override field from the annotations.
//
if (in_ma) {
qd_parsed_field_t *ma_to = qd_parse_value_by_key(in_ma, QD_MA_TO);
if (ma_to) {
addr_iter = qd_iterator_dup(qd_parse_raw(ma_to));
phase = qd_message_get_phase_annotation(msg);
}
}
//
// Still no destination address? Use the TO field from the message properties.
//
if (!addr_iter)
addr_iter = qd_message_field_iterator(msg, QD_FIELD_TO);
if (addr_iter) {
qd_iterator_reset_view(addr_iter, ITER_VIEW_ADDRESS_HASH);
if (phase > 0)
qd_iterator_annotate_phase(addr_iter, '0' + (char) phase);
delivery = qdr_link_deliver_to(rlink, msg, ingress_iter, addr_iter, pn_delivery_settled(pnd),
link_exclusions);
}
} else {
const char *term_addr = pn_terminus_get_address(qd_link_remote_target(link));
if (!term_addr)
term_addr = pn_terminus_get_address(qd_link_source(link));
if (term_addr) {
qd_composed_field_t *to_override = qd_compose_subfield(0);
qd_compose_insert_string(to_override, term_addr);
qd_message_set_to_override_annotation(msg, to_override);
int phase = qdr_link_phase(rlink);
if (phase != 0)
qd_message_set_phase_annotation(msg, phase);
}
delivery = qdr_link_deliver(rlink, msg, ingress_iter, pn_delivery_settled(pnd), link_exclusions);
}
if (delivery) {
if (pn_delivery_settled(pnd))
pn_delivery_settle(pnd);
else {
pn_delivery_set_context(pnd, delivery);
qdr_delivery_set_context(delivery, pnd);
qdr_delivery_incref(delivery);
}
} else {
//
// The message is now and will always be unroutable because there is no address.
//
pn_link_flow(pn_link, 1);
pn_delivery_update(pnd, PN_REJECTED);
pn_delivery_settle(pnd);
qd_message_free(msg);
}
//
// Rules for delivering messages:
//
// For addressed (non-anonymous) links:
// to-override must be set (done in the core?)
// uses qdr_link_deliver to hand over to the core
//
// For anonymous links:
// If there's a to-override in the annotations, use that address
// Or, use the 'to' field in the message properties
//
} else {
//
// Message is invalid. Reject the message and don't involve the router core.
//
pn_link_flow(pn_link, 1);
pn_delivery_update(pnd, PN_REJECTED);
pn_delivery_settle(pnd);
qd_message_free(msg);
}
}
