static void
cap_send_request_tx_cont(errval_t err, struct captx_prepare_state *captx_st,
intermon_captx_t *captx, void *st_)
{
DEBUG_CAPOPS("%s: %s [%p]\n", __FUNCTION__, err_getstring(err), __builtin_return_address(0));
errval_t queue_err;
struct send_cap_st *send_st = (struct send_cap_st*)st_;
if (err_is_fail(err)) {
// XXX: should forward error here
DEBUG_ERR(err, "preparing cap tx failed");
free(send_st);
return;
}
send_st->captx = *captx;
DEBUG_CAPOPS("%s: enqueueing send\n", __FUNCTION__);
send_st->qe.cont = cap_send_tx_cont;
struct remote_conn_state *conn = remote_conn_lookup(send_st->my_mon_id);
struct intermon_binding *binding = conn->mon_binding;
struct intermon_state *inter_st = (struct intermon_state*)binding->st;
queue_err = intermon_enqueue_send(binding, &inter_st->queue,
binding->waitset,
(struct msg_queue_elem*)send_st);
if (err_is_fail(queue_err)) {
DEBUG_ERR(queue_err, "enqueuing cap_send_request failed");
free(send_st);
}
}
static void
cap_send_tx_cont(struct intermon_binding *b,
struct intermon_msg_queue_elem *e)
{
DEBUG_CAPOPS("%s: %p %p\n", __FUNCTION__, b, e);
errval_t send_err;
struct send_cap_st *st = (struct send_cap_st*)e;
struct remote_conn_state *conn = remote_conn_lookup(st->my_mon_id);
send_err = intermon_cap_send_request__tx(b, NOP_CONT, conn->mon_id,
st->capid, st->captx);
if (err_is_fail(send_err)) {
DEBUG_ERR(send_err, "sending cap_send_request failed");
}
free(st);
}
static void monitor_bind_ump_reply(struct monitor_binding *dom_binding,
uintptr_t my_mon_id, uintptr_t domain_id,
errval_t msgerr, struct capref notify)
{
errval_t err;
struct remote_conn_state *conn = remote_conn_lookup(my_mon_id);
if (conn == NULL) {
USER_PANIC("invalid mon_id in UMP bind reply");
return;
}
uintptr_t your_mon_id = conn->mon_id;
struct intermon_binding *mon_binding = conn->mon_binding;
if (err_is_ok(msgerr)) {
/* Connection accepted */
conn->domain_id = domain_id;
conn->domain_binding = dom_binding;
} else {
//error:
/* Free the cap */
err = cap_destroy(conn->x.ump.frame);
assert(err_is_ok(err));
err = remote_conn_free(my_mon_id);
assert(err_is_ok(err));
}
// Identify notify cap
struct capability capability;
err = monitor_cap_identify(notify, &capability);
if (err_is_fail(err)) {
USER_PANIC_ERR(err, "monitor_cap_identify failed, ignored");
return;
}
assert(capability.type == ObjType_Notify_RCK
|| capability.type == ObjType_Notify_IPI
|| capability.type == ObjType_Null);
/* assert(capability.u.notify.coreid == my_core_id); */
bind_ump_reply_cont(mon_binding, your_mon_id, my_mon_id, msgerr, capability);
}
static void
cap_send_request(struct monitor_binding *b, uintptr_t my_mon_id,
struct capref cap, uint32_t capid)
{
DEBUG_CAPOPS("cap_send_request\n");
errval_t err;
struct remote_conn_state *conn = remote_conn_lookup(my_mon_id);
struct send_cap_st *st;
st = calloc(1, sizeof(*st));
if (!st) {
err = LIB_ERR_MALLOC_FAIL;
DEBUG_ERR(err, "Failed to allocate cap_send_request state");
// XXX: should forward error here
return;
}
st->my_mon_id = my_mon_id;
st->cap = cap;
st->capid = capid;
captx_prepare_send(cap, conn->core_id, true, &st->captx_state,
cap_send_request_tx_cont, st);
}
static void intermon_bind_ump_reply(struct intermon_binding *ib,
uint64_t my_mon_id, uint64_t your_mon_id,
errval_t msgerr,
intermon_caprep_t caprep)
{
errval_t err;
struct remote_conn_state *con = remote_conn_lookup(my_mon_id);
if (con == NULL) {
USER_PANIC_ERR(0, "unknown mon_id in UMP bind reply");
return;
}
uintptr_t domain_id = con->domain_id;
struct monitor_binding *domain_binding = con->domain_binding;
struct capref notify_cap = NULL_CAP;
if (err_is_ok(msgerr)) { /* bind succeeded */
con->mon_id = your_mon_id;
con->mon_binding = ib;
#if 0
/* map in UMP channel state */
void *buf;
err = vspace_map_one_frame_attr(&buf,
2 * (UMP_CHANNEL_SIZE + con->localchan.size * sizeof(uintptr_t)),
con->frame, VREGION_FLAGS_READ,
NULL, NULL);
if (err_is_fail(err)) {
USER_PANIC_ERR(err, "vspace_map_one_frame failed");
// XXX: should not be an assert, but we don't have any way to do
// connection teardown here!
assert(buf != NULL);
}
con->sharedchan = buf;
con->localchan.buf = buf + 2 * UMP_CHANNEL_SIZE;
// XXX: Put frame cap on a separate allocator as it is not deleted anymore
struct capref frame_copy;
err = slot_alloc(&frame_copy);
if (err_is_fail(err)) {
USER_PANIC_ERR(err, "Failed to allocator slot from channel_alloc");
}
err = cap_copy(frame_copy, con->frame);
if (err_is_fail(err)) {
USER_PANIC_ERR(err, "Failed create copy of frame cap");
}
err = cap_destroy(con->frame);
if (err_is_fail(err)) {
USER_PANIC_ERR(err, "cap_destroy_default failed");
}
con->frame = frame_copy;
#endif
struct capability capability;
caprep_to_capability(&caprep, &capability);
if(capability.type != ObjType_Null) {
// Get core id of sender
coreid_t core_id = ((struct intermon_state *)ib->st)->core_id;
// Construct the notify cap
err = slot_alloc(¬ify_cap);
if (err_is_fail(err)) {
USER_PANIC_ERR(err, "Failed to allocate slot from channel_alloc");
}
err = monitor_cap_create(notify_cap, &capability, core_id);
if (err_is_fail(err)) {
USER_PANIC_ERR(err, "monitor_cap_create failed");
}
}
} else { /* bind refused */
err = cap_destroy(con->x.ump.frame);
if (err_is_fail(err)) {
USER_PANIC_ERR(err, "cap_destroy_default failed");
}
err = remote_conn_free(my_mon_id);
assert(err_is_ok(err));
}
bind_ump_reply_client_cont(domain_binding, my_mon_id, domain_id, msgerr,
notify_cap);
}
