/*
- * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2006 Apple Computer, Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
* any improvements or extensions that they make and grant Carnegie Mellon
* the rights to redistribute these changes.
*/
+/*
+ * NOTICE: This file was modified by McAfee Research in 2004 to introduce
+ * support for mandatory and extensible security protections. This notice
+ * is included in support of clause 2.2 (b) of the Apple Public License,
+ * Version 2.0.
+ */
/*
*/
/*
#ifndef _MACH_PORT_H_
#define _MACH_PORT_H_
+#include <sys/cdefs.h>
#include <stdint.h>
#include <mach/boolean.h>
#include <mach/machine/vm_types.h>
typedef natural_t mach_port_name_t;
typedef mach_port_name_t *mach_port_name_array_t;
-#ifdef KERNEL_PRIVATE
+#ifdef KERNEL
/*
* mach_port_t - a named port right
typedef struct ipc_port *ipc_port_t;
-#define IPC_PORT_NULL ((ipc_port_t) 0)
-#define IPC_PORT_DEAD ((ipc_port_t)~0)
+#define IPC_PORT_NULL ((ipc_port_t) 0UL)
+#define IPC_PORT_DEAD ((ipc_port_t)~0UL)
#define IPC_PORT_VALID(port) \
((port) != IPC_PORT_NULL && (port) != IPC_PORT_DEAD)
typedef ipc_port_t mach_port_t;
-#else /* KERNEL_PRIVATE */
+/*
+ * Since the 32-bit and 64-bit representations of ~0 are different,
+ * explicitly handle MACH_PORT_DEAD
+ */
+
+#define CAST_MACH_PORT_TO_NAME(x) ((mach_port_name_t)(uintptr_t)(x))
+#define CAST_MACH_NAME_TO_PORT(x) ((x) == MACH_PORT_DEAD ? (mach_port_t)IPC_PORT_DEAD : (mach_port_t)(uintptr_t)(x))
+
+#else /* KERNEL */
/*
* mach_port_t - a named port right
*
*/
-#ifndef _MACH_PORT_T
-#define _MACH_PORT_T
-typedef mach_port_name_t mach_port_t;
-#endif
+#include <sys/_types.h>
+#include <sys/_types/_mach_port_t.h>
-#endif /* KERNEL_PRIVATE */
+#endif /* KERNEL */
typedef mach_port_t *mach_port_array_t;
#define MACH_PORT_RIGHT_SEND_ONCE ((mach_port_right_t) 2)
#define MACH_PORT_RIGHT_PORT_SET ((mach_port_right_t) 3)
#define MACH_PORT_RIGHT_DEAD_NAME ((mach_port_right_t) 4)
-#define MACH_PORT_RIGHT_NUMBER ((mach_port_right_t) 5)
+#define MACH_PORT_RIGHT_LABELH ((mach_port_right_t) 5)
+#define MACH_PORT_RIGHT_NUMBER ((mach_port_right_t) 6)
typedef natural_t mach_port_type_t;
typedef mach_port_type_t *mach_port_type_array_t;
#define MACH_PORT_TYPE_SEND_ONCE MACH_PORT_TYPE(MACH_PORT_RIGHT_SEND_ONCE)
#define MACH_PORT_TYPE_PORT_SET MACH_PORT_TYPE(MACH_PORT_RIGHT_PORT_SET)
#define MACH_PORT_TYPE_DEAD_NAME MACH_PORT_TYPE(MACH_PORT_RIGHT_DEAD_NAME)
+#define MACH_PORT_TYPE_LABELH MACH_PORT_TYPE(MACH_PORT_RIGHT_LABELH)
/* Convenient combinations. */
/* Dummy type bits that mach_port_type/mach_port_names can return. */
-#define MACH_PORT_TYPE_DNREQUEST 0x80000000
+#define MACH_PORT_TYPE_DNREQUEST 0x80000000
+#define MACH_PORT_TYPE_SPREQUEST 0x40000000
+#define MACH_PORT_TYPE_SPREQUEST_DELAYED 0x20000000
/* User-references for capabilities. */
typedef unsigned int mach_port_srights_t; /* status of send rights */
typedef struct mach_port_status {
- mach_port_name_t mps_pset; /* containing port set */
+ mach_port_rights_t mps_pset; /* count of containing port sets */
mach_port_seqno_t mps_seqno; /* sequence number */
mach_port_mscount_t mps_mscount; /* make-send count */
mach_port_msgcount_t mps_qlimit; /* queue limit */
natural_t mps_flags; /* port flags */
} mach_port_status_t;
-#define MACH_PORT_QLIMIT_DEFAULT ((mach_port_msgcount_t) 5)
-#define MACH_PORT_QLIMIT_MAX ((mach_port_msgcount_t) 16)
+/* System-wide values for setting queue limits on a port */
+#define MACH_PORT_QLIMIT_ZERO (0)
+#define MACH_PORT_QLIMIT_BASIC (5)
+#define MACH_PORT_QLIMIT_SMALL (16)
+#define MACH_PORT_QLIMIT_LARGE (1024)
+#define MACH_PORT_QLIMIT_KERNEL (65534)
+#define MACH_PORT_QLIMIT_MIN MACH_PORT_QLIMIT_ZERO
+#define MACH_PORT_QLIMIT_DEFAULT MACH_PORT_QLIMIT_BASIC
+#define MACH_PORT_QLIMIT_MAX MACH_PORT_QLIMIT_LARGE
typedef struct mach_port_limits {
mach_port_msgcount_t mpl_qlimit; /* number of msgs */
} mach_port_limits_t;
+/* Possible values for mps_flags (part of mach_port_status_t) */
+#define MACH_PORT_STATUS_FLAG_TEMPOWNER 0x01
+#define MACH_PORT_STATUS_FLAG_GUARDED 0x02
+#define MACH_PORT_STATUS_FLAG_STRICT_GUARD 0x04
+#define MACH_PORT_STATUS_FLAG_IMP_DONATION 0x08
+#define MACH_PORT_STATUS_FLAG_REVIVE 0x10
+#define MACH_PORT_STATUS_FLAG_TASKPTR 0x20
+
+typedef struct mach_port_info_ext {
+ mach_port_status_t mpie_status;
+ mach_port_msgcount_t mpie_boost_cnt;
+ uint32_t reserved[6];
+} mach_port_info_ext_t;
+
typedef integer_t *mach_port_info_t; /* varying array of natural_t */
/* Flavors for mach_port_get/set_attributes() */
typedef int mach_port_flavor_t;
-#define MACH_PORT_LIMITS_INFO 1 /* uses mach_port_status_t */
-#define MACH_PORT_RECEIVE_STATUS 2 /* uses mach_port_limits_t */
+#define MACH_PORT_LIMITS_INFO 1 /* uses mach_port_limits_t */
+#define MACH_PORT_RECEIVE_STATUS 2 /* uses mach_port_status_t */
#define MACH_PORT_DNREQUESTS_SIZE 3 /* info is int */
+#define MACH_PORT_TEMPOWNER 4 /* indicates receive right will be reassigned to another task */
+#define MACH_PORT_IMPORTANCE_RECEIVER 5 /* indicates recieve right accepts priority donation */
+#define MACH_PORT_DENAP_RECEIVER 6 /* indicates receive right accepts de-nap donation */
+#define MACH_PORT_INFO_EXT 7 /* uses mach_port_info_ext_t */
#define MACH_PORT_LIMITS_INFO_COUNT ((natural_t) \
(sizeof(mach_port_limits_t)/sizeof(natural_t)))
#define MACH_PORT_RECEIVE_STATUS_COUNT ((natural_t) \
(sizeof(mach_port_status_t)/sizeof(natural_t)))
#define MACH_PORT_DNREQUESTS_SIZE_COUNT 1
-
+#define MACH_PORT_INFO_EXT_COUNT ((natural_t) \
+ (sizeof(mach_port_info_ext_t)/sizeof(natural_t)))
/*
* Structure used to pass information about port allocation requests.
* Must be padded to 64-bits total length.
*/
typedef struct mach_port_qos {
- boolean_t name:1; /* name given */
- boolean_t prealloc:1; /* prealloced message */
+ unsigned int name:1; /* name given */
+ unsigned int prealloc:1; /* prealloced message */
boolean_t pad1:30;
natural_t len;
} mach_port_qos_t;
-#if !defined(_POSIX_C_SOURCE) && !defined(_NO_PORT_T_FROM_MACH)
+/* Mach Port Guarding definitions */
+
+/*
+ * Flags for mach_port_options (used for
+ * invocation of mach_port_construct).
+ * Indicates attributes to be set for the newly
+ * allocated port.
+ */
+#define MPO_CONTEXT_AS_GUARD 0x01 /* Add guard to the port */
+#define MPO_QLIMIT 0x02 /* Set qlimit for the port msg queue */
+#define MPO_TEMPOWNER 0x04 /* Set the tempowner bit of the port */
+#define MPO_IMPORTANCE_RECEIVER 0x08 /* Mark the port as importance receiver */
+#define MPO_INSERT_SEND_RIGHT 0x10 /* Insert a send right for the port */
+#define MPO_STRICT 0x20 /* Apply strict guarding for port */
+#define MPO_DENAP_RECEIVER 0x40 /* Mark the port as App de-nap receiver */
+/*
+ * Structure to define optional attributes for a newly
+ * constructed port.
+ */
+typedef struct mach_port_options {
+ uint32_t flags; /* Flags defining attributes for port */
+ mach_port_limits_t mpl; /* Message queue limit for port */
+ uint64_t reserved[2]; /* Reserved */
+}mach_port_options_t;
+
+typedef mach_port_options_t *mach_port_options_ptr_t;
+
+/*
+ * EXC_GUARD represents a guard violation for both
+ * mach ports and file descriptors. GUARD_TYPE_ is used
+ * to differentiate among them.
+ */
+#define GUARD_TYPE_MACH_PORT 0x1
+
+/* Reasons for exception for a guarded mach port */
+enum mach_port_guard_exception_codes {
+ kGUARD_EXC_DESTROY = 1u << 0,
+ kGUARD_EXC_MOD_REFS = 1u << 1,
+ kGUARD_EXC_SET_CONTEXT = 1u << 2,
+ kGUARD_EXC_UNGUARDED = 1u << 3,
+ kGUARD_EXC_INCORRECT_GUARD = 1u << 4
+};
+
+#if !__DARWIN_UNIX03 && !defined(_NO_PORT_T_FROM_MACH)
/*
* Mach 3.0 renamed everything to have mach_ in front of it.
* These types and macros are provided for backward compatibility
#define PORT_VALID(name) \
((port_t)(name) != PORT_NULL && (port_t)(name) != PORT_DEAD)
-#endif /* !_POSIX_C_SOURCE && !_NO_PORT_T_FROM_MACH */
+#endif /* !__DARWIN_UNIX03 && !_NO_PORT_T_FROM_MACH */
#endif /* _MACH_PORT_H_ */
projects / apple / xnu.git / blobdiff