kern_return_t
lsPorts(task_t TargetTask)
{
kern_return_t kr;
mach_port_name_array_t portNames = NULL;
mach_msg_type_number_t portNamesCount;
mach_port_type_array_t portRightTypes = NULL;
mach_msg_type_number_t portRightTypesCount;
mach_port_type_t mac_port_type;
kr = mach_port_names(TargetTask, &portNames, &portNamesCount, &portRightTypes, &portRightTypesCount);
if (kr != KERN_SUCCESS) {
fprintf(stderr, "Unable to obtain MACH port names. %d\n", kr);
return kr;
}
for (unsigned int p = 0; p < portNamesCount; p++) {
printf("Hex Code: ");
printf("0x%x 0x%x\n", portNames[p], portRightTypes[p]);
switch(portRightTypes[p])
{
case MACH_PORT_TYPE_NONE:
printf("This port has send right\n");
break;
case MACH_PORT_TYPE_RECEIVE:
printf("This port has receive right\n");
break;
case MACH_PORT_TYPE_SEND_ONCE:
printf("This port has a send-once right\n");
break;
case MACH_PORT_TYPE_PORT_SET:
printf("This port has a port set\n");
break;
case MACH_PORT_TYPE_DEAD_NAME:
printf("The name is a dead name\n");
break;
case MACH_PORT_TYPE_DNREQUEST:
printf("A dead-name request has been registered for the right.\n");
break;
case MACH_PORT_TYPE_PORT_RIGHTS:
case MACH_PORT_TYPE_SEND_RECEIVE:
printf("Port has both send and receive right\n");
break;
case MACH_PORT_TYPE_SEND_RIGHTS:
printf("Port had send right\n");
break;
case MACH_PORT_TYPE_PORT_OR_DEAD:
printf("Port has send receive rights or is dead\n");
break;
case MACH_PORT_TYPE_ALL_RIGHTS:
printf("Port has all rights\n");
break;
default:
printf("Unknown PORT right 0x%x\n", portRightTypes[p]);
}
}
return kr;
}
/* Return a new port name translator translating names between FROM_TASK and
TO_TASK, in XLATOR, or an error. */
error_t
port_name_xlator_create (mach_port_t from_task, mach_port_t to_task,
struct port_name_xlator **xlator)
{
error_t err;
struct port_name_xlator *x = malloc (sizeof (struct port_name_xlator));
if (! x)
return ENOMEM;
x->from_task = from_task;
x->to_task = to_task;
x->to_names = 0;
x->to_types = 0;
x->to_names_len = 0;
x->to_types_len = 0;
/* Cache a list of names in TO_TASK. */
err = mach_port_names (to_task,
&x->to_names, &x->to_names_len,
&x->to_types, &x->to_types_len);
if (! err)
/* Make an array to hold ports from TO_TASK which have been translated
into our namespace. */
{
x->ports = malloc (sizeof (mach_port_t) * x->to_names_len);
if (x->ports)
{
int i;
for (i = 0; i < x->to_names_len; i++)
x->ports[i] = MACH_PORT_NULL;
}
else
{
munmap ((caddr_t) x->to_names,
x->to_names_len * sizeof (mach_port_t));
munmap ((caddr_t) x->to_types,
x->to_types_len * sizeof (mach_port_type_t));
err = ENOMEM;
}
}
if (err)
free (x);
else
*xlator = x;
return err;
}
static int get_mach_ports(task_t task, task_record_t *tinfo)
{
kern_return_t kr;
mach_msg_type_number_t ncnt, tcnt;
mach_port_name_array_t names;
mach_port_type_array_t types;
kr = mach_port_names(task, &names, &ncnt, &types, &tcnt);
if (kr != KERN_SUCCESS)
return 0;
tinfo->ports = ncnt;
kr = vm_deallocate(mach_task_self(), (mach_vm_address_t)(uintptr_t)names, ncnt * sizeof(*names));
kr = vm_deallocate(mach_task_self(), (mach_vm_address_t)(uintptr_t)types, tcnt * sizeof(*types));
return kr;
}
/*
* fileport_walk
*
* Description: Invoke the action function on every fileport in the task.
*
* This could be more efficient if we refactored mach_port_names()
* so that (a) it didn't compute the type information unless asked
* and (b) it could be asked to -not- unwire/copyout the memory
* and (c) if we could ask for port names by kobject type. Not
* clear that it's worth all that complexity, though.
*
* Parameters: task The target task
* action The function to invoke on each fileport
* arg Anonymous pointer to caller state.
*/
kern_return_t
fileport_walk(task_t task,
int (*action)(mach_port_name_t, struct fileglob *, void *arg),
void *arg)
{
mach_port_name_t *names;
mach_msg_type_number_t ncnt, tcnt;
vm_map_copy_t map_copy_names, map_copy_types;
vm_map_address_t map_names;
kern_return_t kr;
uint_t i;
int rval;
/*
* mach_port_names returns the 'name' and 'types' in copied-in
* form. Discard 'types' immediately, then copyout 'names'
* back into the kernel before walking the array.
*/
kr = mach_port_names(task->itk_space,
(mach_port_name_t **)&map_copy_names, &ncnt,
(mach_port_type_t **)&map_copy_types, &tcnt);
if (kr != KERN_SUCCESS)
return (kr);
vm_map_copy_discard(map_copy_types);
kr = vm_map_copyout(ipc_kernel_map, &map_names, map_copy_names);
if (kr != KERN_SUCCESS) {
vm_map_copy_discard(map_copy_names);
return (kr);
}
names = (mach_port_name_t *)(uintptr_t)map_names;
for (rval = 0, i = 0; i < ncnt; i++)
if (fileport_invoke(task, names[i], action, arg,
&rval) == KERN_SUCCESS && -1 == rval)
break; /* early termination clause */
vm_deallocate(ipc_kernel_map,
(vm_address_t)names, ncnt * sizeof (*names));
return (KERN_SUCCESS);
}
bool
inferior_namespace_mach_port_num (task_t task, thread_t examine_threads_port, thread_t *inferior_port)
{
kern_return_t retval;
mach_port_name_array_t names;
mach_msg_type_number_t nameslen;
mach_port_type_array_t types;
mach_msg_type_number_t typeslen;
if (inferior_port == NULL)
return false;
retval = mach_port_names (task, &names, &nameslen, &types, &typeslen);
if (retval != KERN_SUCCESS)
{
printf ("Error - unable to get mach port names for inferior.\n");
return false;
}
int i = 0;
for (i = 0; i < nameslen; i++)
{
mach_port_t local_name;
mach_msg_type_name_t local_type;
retval = mach_port_extract_right (task, names[i], MACH_MSG_TYPE_COPY_SEND, &local_name, &local_type);
if (retval == KERN_SUCCESS)
{
mach_port_deallocate (mach_task_self(), local_name);
if (local_name == examine_threads_port)
{
*inferior_port = names[i];
vm_deallocate (mach_task_self (), (vm_address_t) names, nameslen * sizeof (mach_port_t));
vm_deallocate (mach_task_self (), (vm_address_t) types, typeslen * sizeof (mach_port_t));
return true;
}
}
}
vm_deallocate (mach_task_self (), (vm_address_t) names, nameslen * sizeof (mach_port_t));
vm_deallocate (mach_task_self (), (vm_address_t) types, typeslen * sizeof (mach_port_t));
return false;
}
/* Prints info about every port common to both tasks in X, but only if the
port in X->from_task has a type in ONLY, to STREAM. */
error_t
print_xlated_task_ports_info (struct port_name_xlator *x,
mach_port_type_t only,
unsigned show, FILE *stream)
{
mach_port_t *names = 0;
mach_port_type_t *types = 0;
mach_msg_type_number_t names_len = 0, types_len = 0, i;
error_t err =
mach_port_names (x->from_task, &names, &names_len, &types, &types_len);
if (err)
return err;
for (i = 0; i < names_len; i++)
if (types[i] & only)
print_xlated_port_info (names[i], types[i], x, show, stream);
munmap ((caddr_t) names, names_len * sizeof *names);
munmap ((caddr_t) types, types_len * sizeof *types);
return 0;
}
static kern_return_t PrintProcessPortSpace(pid_t pid, bool verbose)
// Prints port rights owned by the specified process.
{
kern_return_t err;
kern_return_t junk;
mach_port_t taskSendRight;
mach_port_name_array_t rightNames;
mach_msg_type_number_t rightNamesCount;
mach_port_type_array_t rightTypes;
mach_msg_type_number_t rightTypesCount;
unsigned int i;
taskSendRight = MACH_PORT_NULL;
rightNames = NULL;
rightTypes = NULL;
// Get the task control port for the process.
err = task_for_pid(mach_task_self(), pid, &taskSendRight);
if (err != KERN_SUCCESS) {
fprintf(stderr, "%s: Could not attach to process %lld (%#08x).\n", gProgramName, (long long) pid, err);
}
// Get a snapshot of the port name space for the task.
if (err == KERN_SUCCESS) {
err = mach_port_names(taskSendRight, &rightNames, &rightNamesCount, &rightTypes, &rightTypesCount);
}
if (err == KERN_SUCCESS) {
if ( rightNamesCount != rightTypesCount ) {
fprintf(stderr, "%s: Count mismatch (%u/%u)\n", gProgramName, rightNamesCount, rightTypesCount);
err = KERN_FAILURE;
}
}
// Print that snapshot.
if (err == KERN_SUCCESS) {
fprintf(stdout, " Name Send Receive SendOnce PortSet DeadName DNR");
if (verbose) {
fprintf(stdout, " flg seqno mscount qlimit msgcount sorights pset");
}
fprintf(stdout, "\n");
fprintf(stdout, " ---- ---- ------- -------- ------- -------- ---");
if (verbose) {
fprintf(stdout, " --- ----- ------- ------ -------- -------- ----");
}
fprintf(stdout, "\n");
// For each name, print a reference count of each type of right. If running
// verbose, print other information as well.
for (i = 0; i < rightNamesCount; i++) {
mach_port_right_t right;
// We print the right name in hex because it makes it easier to
// see the index and generation fields. See <mach/port.h> for
// information about this.
fprintf(stdout, "%#8x ", rightNames[i]);
for (right = MACH_PORT_RIGHT_SEND; right <= MACH_PORT_RIGHT_DEAD_NAME; right++) {
mach_port_urefs_t refCount;
// If the rightTypes for this name has the bit associated
// with this type of right set (that is, if the name
// references this type of right), get the name's reference
// for this right and print it. Otherwise just print an
// empty string to keep the columns lined up.
if (rightTypes[i] & MACH_PORT_TYPE(right)) {
err = mach_port_get_refs(taskSendRight, rightNames[i], right, &refCount);
if (err == KERN_SUCCESS) {
fprintf(stdout, "%8d ", refCount);
} else {
fprintf(stdout, "%8s ", "???");
}
} else {
fprintf(stdout, "%8s ", "");
}
}
if ( rightTypes[i] & MACH_PORT_TYPE_DNREQUEST ) {
fprintf(stdout, "yes ");
} else {
fprintf(stdout, " ");
}
if (verbose) {
if (rightTypes[i] & MACH_PORT_TYPE_PORT_SET) {
PrintPortSetMembers(taskSendRight, rightNames[i]);
} else if (rightTypes[i] & MACH_PORT_TYPE_RECEIVE) {
PrintPortReceiveStatus(taskSendRight, rightNames[i]);
}
}
fprintf(stdout, "\n");
}
}
// Clean up.
if (rightNames != NULL) {
junk = vm_deallocate(mach_task_self(), (vm_address_t) rightNames, rightNamesCount * sizeof(*rightNames));
assert(junk == KERN_SUCCESS);
}
if (rightTypes != NULL) {
junk = vm_deallocate(mach_task_self(), (vm_address_t) rightTypes, rightTypesCount * sizeof(*rightTypes));
assert(junk == KERN_SUCCESS);
}
if (taskSendRight != MACH_PORT_NULL) {
junk = mach_port_deallocate(mach_task_self(), taskSendRight);
assert(junk == KERN_SUCCESS);
}
return err;
}
static void
info_mach_ports_command (char *args, int from_tty)
{
port_name_array_t names;
port_type_array_t types;
unsigned int name_count, type_count;
kern_return_t result;
int index;
task_t task;
task = get_task_from_args (args);
if (task == TASK_NULL)
return;
result = mach_port_names (task, &names, &name_count, &types, &type_count);
MACH_CHECK_ERROR (result);
gdb_assert (name_count == type_count);
printf_unfiltered (_("Ports for task 0x%x:\n"), task);
printf_unfiltered (_("port type\n"));
for (index = 0; index < name_count; ++index)
{
mach_port_t port = names[index];
unsigned int j;
struct type_descr
{
mach_port_type_t type;
const char *name;
mach_port_right_t right;
};
static struct type_descr descrs[] =
{
{MACH_PORT_TYPE_SEND, "send", MACH_PORT_RIGHT_SEND},
{MACH_PORT_TYPE_SEND_ONCE, "send-once", MACH_PORT_RIGHT_SEND_ONCE},
{MACH_PORT_TYPE_RECEIVE, "receive", MACH_PORT_RIGHT_RECEIVE},
{MACH_PORT_TYPE_PORT_SET, "port-set", MACH_PORT_RIGHT_PORT_SET},
{MACH_PORT_TYPE_DEAD_NAME, "dead", MACH_PORT_RIGHT_DEAD_NAME}
};
printf_unfiltered (_("%04x: %08x "), port, types[index]);
for (j = 0; j < sizeof(descrs) / sizeof(*descrs); j++)
if (types[index] & descrs[j].type)
{
mach_port_urefs_t ref;
kern_return_t ret;
printf_unfiltered (_(" %s("), descrs[j].name);
ret = mach_port_get_refs (task, port, descrs[j].right, &ref);
if (ret != KERN_SUCCESS)
printf_unfiltered (_("??"));
else
printf_unfiltered (_("%u"), ref);
printf_unfiltered (_(" refs)"));
}
if (task == task_self ())
{
if (port == task_self())
printf_unfiltered (_(" gdb-task"));
else if (port == darwin_host_self)
printf_unfiltered (_(" host-self"));
else if (port == darwin_ex_port)
printf_unfiltered (_(" gdb-exception"));
else if (port == darwin_port_set)
printf_unfiltered (_(" gdb-port_set"));
else if (!ptid_equal (inferior_ptid, null_ptid))
{
struct inferior *inf = current_inferior ();
if (port == inf->priv->task)
printf_unfiltered (_(" inferior-task"));
else if (port == inf->priv->notify_port)
printf_unfiltered (_(" inferior-notify"));
else
{
int k;
darwin_thread_t *t;
for (k = 0; k < inf->priv->exception_info.count; k++)
if (port == inf->priv->exception_info.ports[k])
{
printf_unfiltered (_(" inferior-excp-port"));
break;
}
if (inf->priv->threads)
{
for (k = 0;
VEC_iterate(darwin_thread_t,
inf->priv->threads, k, t);
k++)
if (port == t->gdb_port)
{
printf_unfiltered (_(" inferior-thread for 0x%x"),
inf->priv->task);
break;
}
}
}
}
}
printf_unfiltered (_("\n"));
}
vm_deallocate (task_self (), (vm_address_t) names,
(name_count * sizeof (mach_port_t)));
vm_deallocate (task_self (), (vm_address_t) types,
(type_count * sizeof (mach_port_type_t)));
}
