* Copyright (c) 2006-2012 Apple Inc. All rights reserved.
*
* @APPLE_LICENSE_HEADER_START@
- *
+ *
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
* compliance with the License. Please obtain a copy of the License at
* http://www.opensource.apple.com/apsl/ and read it before using this
* file.
- *
+ *
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
* Please see the License for the specific language governing rights and
* limitations under the License.
- *
+ *
* @APPLE_LICENSE_HEADER_END@
*/
#include <sys/process_policy.h>
#include <stdlib.h>
#include <errno.h>
-#include <limits.h> /* for OPEN_MAX, PATH_MAX */
+#include <limits.h> /* for OPEN_MAX, PATH_MAX */
#include <string.h>
#include <strings.h>
#include <mach/port.h>
+#include <mach/mach_param.h> /* for TASK_PORT_REGISTER_MAX */
#include <mach/exception_types.h>
#include <mach/coalition.h> /* for COALITION_TYPE_MAX */
#include <sys/kern_memorystatus.h>
posix_spawnattr_init(posix_spawnattr_t *attr)
{
_posix_spawnattr_t *psattrp = (_posix_spawnattr_t *)attr;
- int err = 0;
+ int err = 0;
if ((*psattrp = (_posix_spawnattr_t)malloc(sizeof(struct _posix_spawnattr))) == NULL) {
err = ENOMEM;
} else {
-
/*
* The default value of this attribute shall be as if no
* flags were set
(*psattrp)->psa_sigmask = 0;
/* The default value of this attribute shall be zero */
- (*psattrp)->psa_pgroup = 0; /* doesn't matter */
+ (*psattrp)->psa_pgroup = 0; /* doesn't matter */
/* Default is no binary preferences, i.e. use normal grading */
- memset((*psattrp)->psa_binprefs, 0,
- sizeof((*psattrp)->psa_binprefs));
+ memset((*psattrp)->psa_binprefs, 0,
+ sizeof((*psattrp)->psa_binprefs));
/* Default is no port actions to take */
(*psattrp)->psa_ports = NULL;
(*psattrp)->psa_pcontrol = 0;
/*
- * Initializing the alignment paddings.
+ * Initializing the alignment paddings.
*/
- (*psattrp)->short_padding = 0;
- (*psattrp)->flags_padding = 0;
+ (*psattrp)->short_padding = 0;
+ (*psattrp)->flags_padding = 0;
/* Default is no new apptype requested */
(*psattrp)->psa_apptype = POSIX_SPAWN_PROCESS_TYPE_DEFAULT;
(*psattrp)->psa_persona_info = NULL;
+ (*psattrp)->psa_posix_cred_info = NULL;
+
/*
* old coalition field
* For backwards compatibility reasons, we set this to 1
(*psattrp)->psa_max_addr = 0;
}
- return (err);
+ return err;
}
static int posix_spawn_destroyportactions_np(posix_spawnattr_t *);
static int posix_spawn_destroycoalition_info_np(posix_spawnattr_t *);
static int posix_spawn_destroypersona_info_np(posix_spawnattr_t *);
+static int posix_spawn_destroyposix_cred_info_np(posix_spawnattr_t *);
+static int posix_spawn_destroymacpolicy_info_np(posix_spawnattr_t *);
int
posix_spawnattr_destroy(posix_spawnattr_t *attr)
{
_posix_spawnattr_t psattr;
- if (attr == NULL || *attr == NULL)
+ if (attr == NULL || *attr == NULL) {
return EINVAL;
+ }
psattr = *(_posix_spawnattr_t *)attr;
posix_spawn_destroyportactions_np(attr);
posix_spawn_destroycoalition_info_np(attr);
posix_spawn_destroypersona_info_np(attr);
+ posix_spawn_destroyposix_cred_info_np(attr);
+ posix_spawn_destroymacpolicy_info_np(attr);
free(psattr);
*attr = NULL;
- return (0);
+ return 0;
}
{
_posix_spawnattr_t psattr;
- if (attr == NULL || *attr == NULL)
+ if (attr == NULL || *attr == NULL) {
return EINVAL;
+ }
psattr = *(_posix_spawnattr_t *)attr;
psattr->psa_flags = flags;
- return (0);
+ return 0;
}
*/
int
posix_spawnattr_getflags(const posix_spawnattr_t * __restrict attr,
- short * __restrict flagsp)
+ short * __restrict flagsp)
{
_posix_spawnattr_t psattr;
- if (attr == NULL || *attr == NULL)
+ if (attr == NULL || *attr == NULL) {
return EINVAL;
+ }
psattr = *(_posix_spawnattr_t *)attr;
*flagsp = psattr->psa_flags;
- return (0);
+ return 0;
}
*/
int
posix_spawnattr_getsigdefault(const posix_spawnattr_t * __restrict attr,
- sigset_t * __restrict sigdefault)
+ sigset_t * __restrict sigdefault)
{
_posix_spawnattr_t psattr;
- if (attr == NULL || *attr == NULL)
+ if (attr == NULL || *attr == NULL) {
return EINVAL;
+ }
psattr = *(_posix_spawnattr_t *)attr;
*sigdefault = psattr->psa_sigdefault;
- return (0);
+ return 0;
}
*/
int
posix_spawnattr_getpgroup(const posix_spawnattr_t * __restrict attr,
- pid_t * __restrict pgroup)
+ pid_t * __restrict pgroup)
{
_posix_spawnattr_t psattr;
- if (attr == NULL || *attr == NULL)
+ if (attr == NULL || *attr == NULL) {
return EINVAL;
+ }
psattr = *(_posix_spawnattr_t *)attr;
*pgroup = psattr->psa_pgroup;
- return (0);
+ return 0;
}
*/
int
posix_spawnattr_getsigmask(const posix_spawnattr_t * __restrict attr,
- sigset_t * __restrict sigmask)
+ sigset_t * __restrict sigmask)
{
_posix_spawnattr_t psattr;
- if (attr == NULL || *attr == NULL)
+ if (attr == NULL || *attr == NULL) {
return EINVAL;
+ }
psattr = *(_posix_spawnattr_t *)attr;
*sigmask = psattr->psa_sigmask;
- return (0);
+ return 0;
}
/*
* posix_spawnattr_getbinpref_np
*
- * Description: Obtain the value of the spawn binary preferences attribute from
- * the spawn attributes object referenced by 'attr' and place the
+ * Description: Obtain the value of the spawn binary preferences attribute from
+ * the spawn attributes object referenced by 'attr' and place the
* result into the memory referenced by 'pref'.
*
* Parameters: attr The spawn attributes object whose
* ocount The actual number copied
*
* Returns: 0 No binary preferences found
- * > 0 The number of cpu types (less than
- * count) copied over from 'attr'.
+ * > 0 The number of cpu types (less than
+ * count) copied over from 'attr'.
*
* Implicit Returns:
- * *pref (modified) The binary preferences array
+ * *pref (modified) The binary preferences array
* from the spawn attributes object
*/
int
posix_spawnattr_getbinpref_np(const posix_spawnattr_t * __restrict attr,
- size_t count, cpu_type_t *pref, size_t * __restrict ocount)
+ size_t count, cpu_type_t *pref, size_t * __restrict ocount)
{
_posix_spawnattr_t psattr;
int i = 0;
- if (attr == NULL || *attr == NULL)
+ if (attr == NULL || *attr == NULL) {
return EINVAL;
+ }
psattr = *(_posix_spawnattr_t *)attr;
for (i = 0; i < count && i < 4; i++) {
pref[i] = psattr->psa_binprefs[i];
}
- if (ocount)
+ if (ocount) {
*ocount = i;
+ }
return 0;
}
*/
int
posix_spawnattr_getpcontrol_np(const posix_spawnattr_t * __restrict attr,
- int * __restrict pcontrol)
+ int * __restrict pcontrol)
{
_posix_spawnattr_t psattr;
- if (attr == NULL || *attr == NULL)
+ if (attr == NULL || *attr == NULL) {
return EINVAL;
+ }
psattr = *(_posix_spawnattr_t *)attr;
*pcontrol = psattr->psa_pcontrol;
- return (0);
+ return 0;
}
/*
*/
int
posix_spawnattr_getprocesstype_np(const posix_spawnattr_t * __restrict attr,
- int * __restrict proctype)
+ int * __restrict proctype)
{
_posix_spawnattr_t psattr;
- if (attr == NULL || *attr == NULL)
+ if (attr == NULL || *attr == NULL) {
return EINVAL;
+ }
psattr = *(_posix_spawnattr_t *)attr;
*proctype = psattr->psa_apptype;
- return (0);
+ return 0;
}
/*
* posix_spawnattr_setsigdefault
*/
int
posix_spawnattr_setsigdefault(posix_spawnattr_t * __restrict attr,
- const sigset_t * __restrict sigdefault)
+ const sigset_t * __restrict sigdefault)
{
_posix_spawnattr_t psattr;
- if (attr == NULL || *attr == NULL)
+ if (attr == NULL || *attr == NULL) {
return EINVAL;
+ }
psattr = *(_posix_spawnattr_t *)attr;
psattr->psa_sigdefault = *sigdefault;
- return (0);
+ return 0;
}
{
_posix_spawnattr_t psattr;
- if (attr == NULL || *attr == NULL)
+ if (attr == NULL || *attr == NULL) {
return EINVAL;
+ }
psattr = *(_posix_spawnattr_t *)attr;
psattr->psa_pgroup = pgroup;
- return (0);
+ return 0;
}
*/
int
posix_spawnattr_setsigmask(posix_spawnattr_t * __restrict attr,
- const sigset_t * __restrict sigmask)
+ const sigset_t * __restrict sigmask)
{
_posix_spawnattr_t psattr;
- if (attr == NULL || *attr == NULL)
+ if (attr == NULL || *attr == NULL) {
return EINVAL;
+ }
psattr = *(_posix_spawnattr_t *)attr;
psattr->psa_sigmask = *sigmask;
- return (0);
+ return 0;
}
* cpu_type_t array referenced by 'pref', size of 'count'
*
* Parameters: attr The spawn attributes object whose
- * binary preferences are to be set
- * count Size of the array pointed to by 'pref'
- * pref cpu_type_t array of binary preferences
+ * binary preferences are to be set
+ * count Size of the array pointed to by 'pref'
+ * pref cpu_type_t array of binary preferences
* ocount The actual number copied
*
* Returns: 0 No preferences copied
- * > 0 Number of preferences copied
+ * > 0 Number of preferences copied
*
- * Note: The posix_spawnattr_t currently only holds four cpu_type_t's.
- * If the caller provides more preferences than this limit, they
- * will be ignored, as reflected in the return value.
+ * Note: The posix_spawnattr_t currently only holds four cpu_type_t's.
+ * If the caller provides more preferences than this limit, they
+ * will be ignored, as reflected in the return value.
*/
int
posix_spawnattr_setbinpref_np(posix_spawnattr_t * __restrict attr,
- size_t count, cpu_type_t *pref, size_t * __restrict ocount)
+ size_t count, cpu_type_t *pref, size_t * __restrict ocount)
{
_posix_spawnattr_t psattr;
int i = 0;
- if (attr == NULL || *attr == NULL)
+ if (attr == NULL || *attr == NULL) {
return EINVAL;
+ }
psattr = *(_posix_spawnattr_t *)attr;
for (i = 0; i < count && i < 4; i++) {
}
/* return number of binprefs copied over */
- if (ocount)
+ if (ocount) {
*ocount = i;
+ }
return 0;
}
*/
int
posix_spawnattr_setpcontrol_np(posix_spawnattr_t * __restrict attr,
- const int pcontrol)
+ const int pcontrol)
{
_posix_spawnattr_t psattr;
- if (attr == NULL || *attr == NULL)
+ if (attr == NULL || *attr == NULL) {
return EINVAL;
+ }
psattr = *(_posix_spawnattr_t *)attr;
psattr->psa_pcontrol = pcontrol;
- return (0);
+ return 0;
}
*/
int
posix_spawnattr_setprocesstype_np(posix_spawnattr_t * __restrict attr,
- const int proctype)
+ const int proctype)
{
_posix_spawnattr_t psattr;
- if (attr == NULL || *attr == NULL)
+ if (attr == NULL || *attr == NULL) {
return EINVAL;
+ }
psattr = *(_posix_spawnattr_t *)attr;
psattr->psa_apptype = proctype;
- return (0);
+ return 0;
}
/*
* posix_spawn_createportactions_np
* Description: create a new posix_spawn_port_actions struct and link
- * it into the posix_spawnattr.
+ * it into the posix_spawnattr.
*/
static int
posix_spawn_createportactions_np(posix_spawnattr_t *attr)
_posix_spawnattr_t psattr;
_posix_spawn_port_actions_t acts;
- if (attr == NULL || *attr == NULL)
+ if (attr == NULL || *attr == NULL) {
return EINVAL;
+ }
psattr = *(_posix_spawnattr_t *)attr;
acts = (_posix_spawn_port_actions_t)malloc(PS_PORT_ACTIONS_SIZE(2));
- if (acts == NULL)
+ if (acts == NULL) {
return ENOMEM;
-
+ }
+
acts->pspa_alloc = 2;
acts->pspa_count = 0;
/*
* posix_spawn_growportactions_np
- * Description: Enlarge the size of portactions if necessary
+ * Description: Enlarge the size of portactions if necessary
*/
static int
posix_spawn_growportactions_np(posix_spawnattr_t *attr)
{
_posix_spawnattr_t psattr;
- _posix_spawn_port_actions_t acts;
+ _posix_spawn_port_actions_t acts;
- if (attr == NULL || *attr == NULL)
+ if (attr == NULL || *attr == NULL) {
return EINVAL;
+ }
psattr = *(_posix_spawnattr_t *)attr;
- acts = psattr->psa_ports;
- if (acts == NULL)
+ acts = psattr->psa_ports;
+ if (acts == NULL) {
return EINVAL;
-
+ }
+
/* Double number of port actions allocated for */
int newnum = 0;
- if (os_mul_overflow(acts->pspa_alloc, 2, &newnum))
+ if (os_mul_overflow(acts->pspa_alloc, 2, &newnum)) {
return ENOMEM;
+ }
size_t newsize = PS_PORT_ACTIONS_SIZE(newnum);
- if (newsize == 0)
+ if (newsize == 0) {
return ENOMEM;
+ }
acts = realloc(acts, newsize);
- if (acts == NULL)
+ if (acts == NULL) {
return ENOMEM;
-
+ }
+
acts->pspa_alloc = newnum;
psattr->psa_ports = acts;
return 0;
posix_spawn_destroyportactions_np(posix_spawnattr_t *attr)
{
_posix_spawnattr_t psattr;
- _posix_spawn_port_actions_t acts;
+ _posix_spawn_port_actions_t acts;
- if (attr == NULL || *attr == NULL)
+ if (attr == NULL || *attr == NULL) {
return EINVAL;
+ }
psattr = *(_posix_spawnattr_t *)attr;
- acts = psattr->psa_ports;
- if (acts == NULL)
+ acts = psattr->psa_ports;
+ if (acts == NULL) {
return EINVAL;
-
+ }
+
free(acts);
return 0;
}
_posix_spawnattr_t psattr;
struct _posix_spawn_coalition_info *coal_info;
- if (attr == NULL || *attr == NULL)
+ if (attr == NULL || *attr == NULL) {
return EINVAL;
+ }
psattr = *(_posix_spawnattr_t *)attr;
coal_info = psattr->psa_coalition_info;
- if (coal_info == NULL)
+ if (coal_info == NULL) {
return EINVAL;
+ }
psattr->psa_coalition_info = NULL;
free(coal_info);
_posix_spawnattr_t psattr;
struct _posix_spawn_persona_info *persona;
- if (attr == NULL || *attr == NULL)
+ if (attr == NULL || *attr == NULL) {
return EINVAL;
+ }
psattr = *(_posix_spawnattr_t *)attr;
persona = psattr->psa_persona_info;
- if (persona == NULL)
+ if (persona == NULL) {
return EINVAL;
+ }
psattr->psa_persona_info = NULL;
free(persona);
return 0;
}
+/*
+ * posix_spawn_destroyposix_cred_info_np
+ * Description: clean up posix_cred_info struct in posix_spawnattr_t attr
+ */
+static int
+posix_spawn_destroyposix_cred_info_np(posix_spawnattr_t *attr)
+{
+ _posix_spawnattr_t psattr;
+ struct _posix_spawn_posix_cred_info *pspci;
+
+ if (attr == NULL || *attr == NULL) {
+ return EINVAL;
+ }
+
+ psattr = *(_posix_spawnattr_t *)attr;
+ pspci = psattr->psa_posix_cred_info;
+ if (pspci == NULL) {
+ return EINVAL;
+ }
+
+ psattr->psa_posix_cred_info = NULL;
+ free(pspci);
+ return 0;
+}
+
/*
* posix_spawn_appendportaction_np
* Description: append a port action, grow the array if necessary
/*
* posix_spawnattr_setspecialport_np
*
- * Description: Set a new value for a mach special port in the spawned task.
+ * Description: Set a new value for a mach special port in the spawned task.
*
* Parameters: attr The spawn attributes object for the
- * new process
- * new_port The new value for the special port
- * which The particular port to be set
- * (see task_set_special_port for details)
+ * new process
+ * new_port The new value for the special port
+ * which The particular port to be set
+ * (see task_set_special_port for details)
*
* Returns: 0 Success
- * ENOMEM Couldn't allocate memory
+ * ENOMEM Couldn't allocate memory
*/
-int
+int
posix_spawnattr_setspecialport_np(
- posix_spawnattr_t *attr,
- mach_port_t new_port,
- int which)
+ posix_spawnattr_t *attr,
+ mach_port_t new_port,
+ int which)
{
_ps_port_action_t action = {
.port_type = PSPA_SPECIAL,
return posix_spawn_appendportaction_np(attr, &action);
}
+/*
+ * posix_spawnattr_setsuidcredport_np
+ *
+ * Description: Set an suid cred port to be used to execute with a different UID.
+ *
+ * Parameters: attr The spawn attributes object for the
+ * new process
+ * port The suid cred port
+ *
+ * Returns: 0 Success
+ */
+int
+posix_spawnattr_setsuidcredport_np(posix_spawnattr_t *attr, mach_port_t port)
+{
+ _ps_port_action_t action = {
+ .port_type = PSPA_SUID_CRED,
+ .new_port = port,
+ };
+ return posix_spawn_appendportaction_np(attr, &action);
+}
+
/*
* posix_spawnattr_setexceptionports_np
*
* Description: Set a new port for a set of exception ports in the spawned task.
*
* Parameters: attr The spawn attributes object for the
- * new process
- * mask A bitfield indicating which exceptions
- * to associate the port with
- * new_port The new value for the exception port
- * behavior The default behavior for the port
- * flavor The default flavor for the port
- * (see task_set_exception_ports)
+ * new process
+ * mask A bitfield indicating which exceptions
+ * to associate the port with
+ * new_port The new value for the exception port
+ * behavior The default behavior for the port
+ * flavor The default flavor for the port
+ * (see task_set_exception_ports)
*
* Returns: 0 Success
*/
-int
+int
posix_spawnattr_setexceptionports_np(
- posix_spawnattr_t *attr,
- exception_mask_t mask,
- mach_port_t new_port,
- exception_behavior_t behavior,
- thread_state_flavor_t flavor)
+ posix_spawnattr_t *attr,
+ exception_mask_t mask,
+ mach_port_t new_port,
+ exception_behavior_t behavior,
+ thread_state_flavor_t flavor)
{
_ps_port_action_t action = {
.port_type = PSPA_EXCEPTION,
* the new task.
*
* Parameters: attr The spawn attributes object for the
- * new process
- * au_sessionport The audit session send port right
+ * new process
+ * au_sessionport The audit session send port right
*
* Returns: 0 Success
*/
-int
+int
posix_spawnattr_setauditsessionport_np(
- posix_spawnattr_t *attr,
- mach_port_t au_sessionport)
+ posix_spawnattr_t *attr,
+ mach_port_t au_sessionport)
{
_ps_port_action_t action = {
.port_type = PSPA_AU_SESSION,
posix_spawn_file_actions_init(posix_spawn_file_actions_t *file_actions)
{
_posix_spawn_file_actions_t *psactsp = (_posix_spawn_file_actions_t *)file_actions;
- int err = 0;
+ int err = 0;
if ((*psactsp = (_posix_spawn_file_actions_t)malloc(PSF_ACTIONS_SIZE(PSF_ACTIONS_INIT_COUNT))) == NULL) {
err = ENOMEM;
(*psactsp)->psfa_act_count = 0;
}
- return (err);
+ return err;
}
{
_posix_spawn_file_actions_t psacts;
- if (file_actions == NULL || *file_actions == NULL)
+ if (file_actions == NULL || *file_actions == NULL) {
return EINVAL;
+ }
psacts = *(_posix_spawn_file_actions_t *)file_actions;
free(psacts);
*file_actions = NULL;
- return (0);
+ return 0;
}
_posix_spawn_file_actions_grow(_posix_spawn_file_actions_t *psactsp)
{
int newnum = 0;
- if (os_mul_overflow((*psactsp)->psfa_act_alloc, 2, &newnum))
+ if (os_mul_overflow((*psactsp)->psfa_act_alloc, 2, &newnum)) {
return ENOMEM;
+ }
size_t newsize = PSF_ACTIONS_SIZE(newnum);
- if (newsize == 0)
+ if (newsize == 0) {
return ENOMEM;
+ }
/*
* XXX may want to impose an administrative limit here; POSIX does
*/
int
posix_spawn_file_actions_addopen(
- posix_spawn_file_actions_t * __restrict file_actions,
- int filedes, const char * __restrict path, int oflag,
- mode_t mode)
+ posix_spawn_file_actions_t * __restrict file_actions,
+ int filedes, const char * __restrict path, int oflag,
+ mode_t mode)
{
_posix_spawn_file_actions_t *psactsp;
_psfa_action_t *psfileact;
- if (file_actions == NULL || *file_actions == NULL)
+ if (file_actions == NULL || *file_actions == NULL) {
return EINVAL;
+ }
psactsp = (_posix_spawn_file_actions_t *)file_actions;
/* Range check; required by POSIX */
- if (filedes < 0 || filedes >= OPEN_MAX)
- return (EBADF);
+ if (filedes < 0 || filedes >= OPEN_MAX) {
+ return EBADF;
+ }
/* If we do not have enough slots, grow the structure */
if ((*psactsp)->psfa_act_count == (*psactsp)->psfa_act_alloc) {
/* need to grow file actions structure */
- if (_posix_spawn_file_actions_grow(psactsp))
- return (ENOMEM);
+ if (_posix_spawn_file_actions_grow(psactsp)) {
+ return ENOMEM;
+ }
}
/*
psfileact->psfaa_openargs.psfao_mode = mode;
strlcpy(psfileact->psfaa_openargs.psfao_path, path, PATH_MAX);
- return (0);
+ return 0;
}
*/
int
posix_spawn_file_actions_addclose(posix_spawn_file_actions_t *file_actions,
- int filedes)
+ int filedes)
{
_posix_spawn_file_actions_t *psactsp;
_psfa_action_t *psfileact;
- if (file_actions == NULL || *file_actions == NULL)
+ if (file_actions == NULL || *file_actions == NULL) {
return EINVAL;
+ }
psactsp = (_posix_spawn_file_actions_t *)file_actions;
/* Range check; required by POSIX */
- if (filedes < 0 || filedes >= OPEN_MAX)
- return (EBADF);
+ if (filedes < 0 || filedes >= OPEN_MAX) {
+ return EBADF;
+ }
/* If we do not have enough slots, grow the structure */
if ((*psactsp)->psfa_act_count == (*psactsp)->psfa_act_alloc) {
/* need to grow file actions structure */
- if (_posix_spawn_file_actions_grow(psactsp))
- return (ENOMEM);
+ if (_posix_spawn_file_actions_grow(psactsp)) {
+ return ENOMEM;
+ }
}
/*
psfileact->psfaa_type = PSFA_CLOSE;
psfileact->psfaa_filedes = filedes;
- return (0);
+ return 0;
}
*/
int
posix_spawn_file_actions_adddup2(posix_spawn_file_actions_t *file_actions,
- int filedes, int newfiledes)
+ int filedes, int newfiledes)
{
_posix_spawn_file_actions_t *psactsp;
_psfa_action_t *psfileact;
- if (file_actions == NULL || *file_actions == NULL)
+ if (file_actions == NULL || *file_actions == NULL) {
return EINVAL;
+ }
psactsp = (_posix_spawn_file_actions_t *)file_actions;
/* Range check; required by POSIX */
if (filedes < 0 || filedes >= OPEN_MAX ||
- newfiledes < 0 || newfiledes >= OPEN_MAX)
- return (EBADF);
+ newfiledes < 0 || newfiledes >= OPEN_MAX) {
+ return EBADF;
+ }
/* If we do not have enough slots, grow the structure */
if ((*psactsp)->psfa_act_count == (*psactsp)->psfa_act_alloc) {
/* need to grow file actions structure */
- if (_posix_spawn_file_actions_grow(psactsp))
- return (ENOMEM);
+ if (_posix_spawn_file_actions_grow(psactsp)) {
+ return ENOMEM;
+ }
}
/*
psfileact->psfaa_type = PSFA_DUP2;
psfileact->psfaa_filedes = filedes;
- psfileact->psfaa_openargs.psfao_oflag = newfiledes;
+ psfileact->psfaa_dup2args.psfad_newfiledes = newfiledes;
+
+ return 0;
+}
+
+/*
+ * posix_spawn_file_actions_add_fileportdup2_np
+ *
+ * Description: Add a dup2 action to the object referenced by 'file_actions'
+ * that will cause the file referenced by 'fileport' to be
+ * attempted to be dup2'ed to the descriptor 'newfiledes' in the
+ * spawned process.
+ *
+ * Parameters: file_actions File action object to augment
+ * filedes fileport to dup2
+ * newfiledes fd to dup2 it to
+ *
+ * Returns: 0 Success
+ * EBADF fileport isn't a valid port, or the
+ * value specified by newfiledes is
+ * negative or greater than or equal to
+ * {OPEN_MAX}.
+ * ENOMEM Insufficient memory exists to add to
+ * the spawn file actions object.
+ *
+ * NOTIMP: Allowed failures (checking NOT required):
+ * EINVAL The value specified by file_actions is invalid.
+ */
+int
+posix_spawn_file_actions_add_fileportdup2_np(
+ posix_spawn_file_actions_t *file_actions,
+ mach_port_t fileport, int newfiledes)
+{
+ _posix_spawn_file_actions_t *psactsp;
+ _psfa_action_t *psfileact;
+
+ if (file_actions == NULL || *file_actions == NULL) {
+ return EINVAL;
+ }
+
+ psactsp = (_posix_spawn_file_actions_t *)file_actions;
+ /* Range check; required by POSIX */
+ if (!MACH_PORT_VALID(fileport) ||
+ newfiledes < 0 || newfiledes >= OPEN_MAX) {
+ return EBADF;
+ }
+
+ /* If we do not have enough slots, grow the structure */
+ if ((*psactsp)->psfa_act_count == (*psactsp)->psfa_act_alloc) {
+ /* need to grow file actions structure */
+ if (_posix_spawn_file_actions_grow(psactsp)) {
+ return ENOMEM;
+ }
+ }
+
+ /*
+ * Allocate next available slot and fill it out
+ */
+ psfileact = &(*psactsp)->psfa_act_acts[(*psactsp)->psfa_act_count++];
+
+ psfileact->psfaa_type = PSFA_FILEPORT_DUP2;
+ psfileact->psfaa_fileport = fileport;
+ psfileact->psfaa_dup2args.psfad_newfiledes = newfiledes;
- return (0);
+ return 0;
}
/*
*/
int
posix_spawn_file_actions_addinherit_np(posix_spawn_file_actions_t *file_actions,
- int filedes)
+ int filedes)
{
_posix_spawn_file_actions_t *psactsp;
_psfa_action_t *psfileact;
- if (file_actions == NULL || *file_actions == NULL)
- return (EINVAL);
+ if (file_actions == NULL || *file_actions == NULL) {
+ return EINVAL;
+ }
psactsp = (_posix_spawn_file_actions_t *)file_actions;
/* Range check; required by POSIX */
- if (filedes < 0 || filedes >= OPEN_MAX)
- return (EBADF);
+ if (filedes < 0 || filedes >= OPEN_MAX) {
+ return EBADF;
+ }
-#if defined(POSIX_SPAWN_CLOEXEC_DEFAULT) // TODO: delete this check
+#if defined(POSIX_SPAWN_CLOEXEC_DEFAULT) // TODO: delete this check
/* If we do not have enough slots, grow the structure */
if ((*psactsp)->psfa_act_count == (*psactsp)->psfa_act_alloc) {
/* need to grow file actions structure */
- if (_posix_spawn_file_actions_grow(psactsp))
- return (ENOMEM);
+ if (_posix_spawn_file_actions_grow(psactsp)) {
+ return ENOMEM;
+ }
}
/*
psfileact->psfaa_type = PSFA_INHERIT;
psfileact->psfaa_filedes = filedes;
#endif
- return (0);
+ return 0;
+}
+
+
+/*
+ * posix_spawn_file_actions_addchdir_np
+ *
+ * Description: Add a chdir action to the object referenced by 'file_actions'
+ * that will cause the current working directory to attempt to be changed
+ * to that referenced by 'path' in the spawned process.
+ *
+ * Parameters: file_actions File action object to augment
+ * path path of the desired working directory
+ *
+ * Returns: 0 Success
+ * ENOMEM Insufficient memory exists to add to
+ * the spawn file actions object.
+ * ENAMETOOLONG The supplied path exceeded PATH_MAX.
+ *
+ * NOTIMP: Allowed failures (checking NOT required):
+ * EINVAL The value specified by file_actions is invalid.
+ */
+int
+posix_spawn_file_actions_addchdir_np(
+ posix_spawn_file_actions_t * __restrict file_actions,
+ const char * __restrict path)
+{
+ _posix_spawn_file_actions_t *psactsp;
+ _psfa_action_t *psfileact;
+
+ if (file_actions == NULL || *file_actions == NULL) {
+ return EINVAL;
+ }
+
+ psactsp = (_posix_spawn_file_actions_t *)file_actions;
+
+ /* If we do not have enough slots, grow the structure */
+ if ((*psactsp)->psfa_act_count == (*psactsp)->psfa_act_alloc) {
+ /* need to grow file actions structure */
+ if (_posix_spawn_file_actions_grow(psactsp)) {
+ return ENOMEM;
+ }
+ }
+
+ /*
+ * Allocate next available slot and fill it out
+ */
+ psfileact = &(*psactsp)->psfa_act_acts[(*psactsp)->psfa_act_count++];
+
+ psfileact->psfaa_type = PSFA_CHDIR;
+ if (strlcpy(psfileact->psfaa_chdirargs.psfac_path, path, PATH_MAX) >= PATH_MAX) {
+ (*psactsp)->psfa_act_count--;
+ return ENAMETOOLONG;
+ }
+
+ return 0;
+}
+
+
+/*
+ * posix_spawn_file_actions_fchdir_np
+ *
+ * Description: Add a fchdir action to the object referenced by 'file_actions'
+ * that will cause the current working directory to attempt to be changed
+ * to that referenced by the descriptor 'filedes' in the spawned process.
+ *
+ * Parameters: file_actions File action object to augment
+ * filedes fd to chdir to
+ *
+ * Returns: 0 Success
+ * EBADF The value specified by either fildes is negative or
+ * greater than or equal to {OPEN_MAX}.
+ * ENOMEM Insufficient memory exists to add to
+ * the spawn file actions object.
+ *
+ * NOTIMP: Allowed failures (checking NOT required):
+ * EINVAL The value specified by file_actions is invalid.
+ */
+int
+posix_spawn_file_actions_addfchdir_np(posix_spawn_file_actions_t *file_actions,
+ int filedes)
+{
+ _posix_spawn_file_actions_t *psactsp;
+ _psfa_action_t *psfileact;
+
+ if (file_actions == NULL || *file_actions == NULL) {
+ return EINVAL;
+ }
+
+ psactsp = (_posix_spawn_file_actions_t *)file_actions;
+ /* Range check; in spirit of POSIX */
+ if (filedes < 0 || filedes >= OPEN_MAX) {
+ return EBADF;
+ }
+
+ /* If we do not have enough slots, grow the structure */
+ if ((*psactsp)->psfa_act_count == (*psactsp)->psfa_act_alloc) {
+ /* need to grow file actions structure */
+ if (_posix_spawn_file_actions_grow(psactsp)) {
+ return ENOMEM;
+ }
+ }
+
+ /*
+ * Allocate next available slot and fill it out
+ */
+ psfileact = &(*psactsp)->psfa_act_acts[(*psactsp)->psfa_act_count++];
+
+ psfileact->psfaa_type = PSFA_FCHDIR;
+ psfileact->psfaa_filedes = filedes;
+
+ return 0;
}
int
posix_spawnattr_setcpumonitor_default(posix_spawnattr_t * __restrict attr)
{
- return (posix_spawnattr_setcpumonitor(attr, PROC_POLICY_CPUMON_DEFAULTS, 0));
+ return posix_spawnattr_setcpumonitor(attr, PROC_POLICY_CPUMON_DEFAULTS, 0);
}
int
posix_spawnattr_setcpumonitor(posix_spawnattr_t * __restrict attr,
- uint64_t percent, uint64_t interval)
+ uint64_t percent, uint64_t interval)
{
_posix_spawnattr_t psattr;
- if (attr == NULL || *attr == NULL)
- return (EINVAL);
+ if (attr == NULL || *attr == NULL) {
+ return EINVAL;
+ }
psattr = *(_posix_spawnattr_t *)attr;
psattr->psa_cpumonitor_percent = percent;
psattr->psa_cpumonitor_interval = interval;
- return (0);
+ return 0;
}
int
posix_spawnattr_getcpumonitor(posix_spawnattr_t * __restrict attr,
- uint64_t *percent, uint64_t *interval)
+ uint64_t *percent, uint64_t *interval)
{
_posix_spawnattr_t psattr;
- if (attr == NULL || *attr == NULL)
- return (EINVAL);
+ if (attr == NULL || *attr == NULL) {
+ return EINVAL;
+ }
psattr = *(_posix_spawnattr_t *)attr;
*percent = psattr->psa_cpumonitor_percent;
*interval = psattr->psa_cpumonitor_interval;
- return (0);
+ return 0;
}
-#if TARGET_OS_EMBEDDED
+#if (TARGET_OS_IPHONE && !TARGET_OS_SIMULATOR)
/*
* posix_spawnattr_setjetsam
*
*/
int
posix_spawnattr_setjetsam(posix_spawnattr_t * __restrict attr,
- short flags, int priority, int memlimit)
+ short flags, int priority, int memlimit)
{
short flags_ext = flags;
- if (flags & POSIX_SPAWN_JETSAM_MEMLIMIT_FATAL) {
- flags_ext |= POSIX_SPAWN_JETSAM_MEMLIMIT_ACTIVE_FATAL;
- flags_ext |= POSIX_SPAWN_JETSAM_MEMLIMIT_INACTIVE_FATAL;
- } else {
- flags_ext &= ~POSIX_SPAWN_JETSAM_MEMLIMIT_ACTIVE_FATAL;
- flags_ext &= ~POSIX_SPAWN_JETSAM_MEMLIMIT_INACTIVE_FATAL;
- }
+ if (flags & POSIX_SPAWN_JETSAM_MEMLIMIT_FATAL) {
+ flags_ext |= POSIX_SPAWN_JETSAM_MEMLIMIT_ACTIVE_FATAL;
+ flags_ext |= POSIX_SPAWN_JETSAM_MEMLIMIT_INACTIVE_FATAL;
+ } else {
+ flags_ext &= ~POSIX_SPAWN_JETSAM_MEMLIMIT_ACTIVE_FATAL;
+ flags_ext &= ~POSIX_SPAWN_JETSAM_MEMLIMIT_INACTIVE_FATAL;
+ }
- return (posix_spawnattr_setjetsam_ext(attr, flags_ext, priority, memlimit, memlimit));
+ return posix_spawnattr_setjetsam_ext(attr, flags_ext, priority, memlimit, memlimit);
}
-#endif /* TARGET_OS_EMBEDDED */
+#endif /* (TARGET_OS_IPHONE && !TARGET_OS_SIMULATOR) */
/*
* posix_spawnattr_setjetsam_ext
*/
int
posix_spawnattr_setjetsam_ext(posix_spawnattr_t * __restrict attr,
- short flags, int priority, int memlimit_active, int memlimit_inactive)
+ short flags, int priority, int memlimit_active, int memlimit_inactive)
{
_posix_spawnattr_t psattr;
- if (attr == NULL || *attr == NULL)
+ if (attr == NULL || *attr == NULL) {
return EINVAL;
+ }
psattr = *(_posix_spawnattr_t *)attr;
psattr->psa_memlimit_active = memlimit_active;
psattr->psa_memlimit_inactive = memlimit_inactive;
- return (0);
+ return 0;
}
int
posix_spawnattr_set_threadlimit_ext(posix_spawnattr_t * __restrict attr,
- int thread_limit)
+ int thread_limit)
{
_posix_spawnattr_t psattr;
- if (attr == NULL || *attr == NULL)
+ if (attr == NULL || *attr == NULL) {
return EINVAL;
+ }
psattr = *(_posix_spawnattr_t *)attr;
psattr->psa_thread_limit = thread_limit;
- return (0);
-
+ return 0;
}
* posix_spawnattr_set_importancewatch_port_np
*
* Description: Mark ports referred to by these rights
- * to boost the new task instead of their current task
+ * to boost the new task instead of their current task
* for the spawn attribute object referred to by 'attr'.
* Ports must be valid at posix_spawn time. They will NOT be
* consumed by the kernel, so they must be deallocated after the spawn returns.
* (If you are SETEXEC-ing, they are cleaned up by the exec operation).
- *
+ *
* The maximum number of watch ports allowed is defined by POSIX_SPAWN_IMPORTANCE_PORT_COUNT.
*
* Parameters: count Number of ports in portarray
* ENOMEM Insufficient memory exists to add to
* the spawn port actions object.
*/
-int
+int
posix_spawnattr_set_importancewatch_port_np(posix_spawnattr_t * __restrict attr,
- int count, mach_port_t portarray[])
+ int count, mach_port_t portarray[])
{
int err = 0, i;
.port_type = PSPA_IMP_WATCHPORTS,
.new_port = portarray[i],
};
- int err = posix_spawn_appendportaction_np(attr, &action);
+ err = posix_spawn_appendportaction_np(attr, &action);
if (err) {
break;
}
return err;
}
+int
+posix_spawnattr_set_registered_ports_np(posix_spawnattr_t * __restrict attr,
+ mach_port_t portarray[], uint32_t count)
+{
+ int err = 0;
+
+ if (count > TASK_PORT_REGISTER_MAX) {
+ return EINVAL;
+ }
+
+ for (uint32_t i = 0; i < count; i++) {
+ _ps_port_action_t action = {
+ .port_type = PSPA_REGISTERED_PORTS,
+ .new_port = portarray[i],
+ };
+ err = posix_spawn_appendportaction_np(attr, &action);
+ if (err) {
+ break;
+ }
+ }
+ return err;
+}
static
{
int i;
- if (psmx == NULL)
+ if (psmx == NULL) {
return NULL;
-
+ }
+
for (i = 0; i < psmx->psmx_count; i++) {
_ps_mac_policy_extension_t *extension = &psmx->psmx_extensions[i];
- if (strcmp(extension->policyname, policyname) == 0)
+ if (strcmp(extension->policyname, policyname) == 0) {
return extension;
+ }
}
return NULL;
}
int
posix_spawnattr_getmacpolicyinfo_np(const posix_spawnattr_t * __restrict attr,
- const char *policyname, void **datap, size_t *datalenp)
+ const char *policyname, void **datap, size_t *datalenp)
{
_posix_spawnattr_t psattr;
_ps_mac_policy_extension_t *extension;
- if (attr == NULL || *attr == NULL || policyname == NULL || datap == NULL)
+ if (attr == NULL || *attr == NULL || policyname == NULL || datap == NULL) {
return EINVAL;
+ }
psattr = *(_posix_spawnattr_t *)attr;
extension = posix_spawnattr_macpolicyinfo_lookup(psattr->psa_mac_extensions, policyname);
- if (extension == NULL)
+ if (extension == NULL) {
return ESRCH;
+ }
*datap = (void *)(uintptr_t)extension->data;
if (datalenp != NULL) {
*datalenp = (size_t)extension->datalen;
int
posix_spawnattr_setmacpolicyinfo_np(posix_spawnattr_t * __restrict attr,
- const char *policyname, void *data, size_t datalen)
+ const char *policyname, void *data, size_t datalen)
{
_posix_spawnattr_t psattr;
_posix_spawn_mac_policy_extensions_t psmx;
_ps_mac_policy_extension_t *extension;
- if (attr == NULL || *attr == NULL || policyname == NULL)
+ if (attr == NULL || *attr == NULL || policyname == NULL) {
return EINVAL;
+ }
psattr = *(_posix_spawnattr_t *)attr;
psmx = psattr->psa_mac_extensions;
extension->data = (uintptr_t)data;
extension->datalen = datalen;
return 0;
- }
- else if (psmx == NULL) {
+ } else if (psmx == NULL) {
psmx = psattr->psa_mac_extensions = malloc(PS_MAC_EXTENSIONS_SIZE(PS_MAC_EXTENSIONS_INIT_COUNT));
- if (psmx == NULL)
+ if (psmx == NULL) {
return ENOMEM;
+ }
psmx->psmx_alloc = PS_MAC_EXTENSIONS_INIT_COUNT;
psmx->psmx_count = 0;
- }
- else if (psmx->psmx_count == psmx->psmx_alloc) {
+ } else if (psmx->psmx_count == psmx->psmx_alloc) {
int newnum = 0;
- if (os_mul_overflow(psmx->psmx_alloc, 2, &newnum))
+ if (os_mul_overflow(psmx->psmx_alloc, 2, &newnum)) {
return ENOMEM;
+ }
size_t extsize = PS_MAC_EXTENSIONS_SIZE(newnum);
- if (extsize == 0)
+ if (extsize == 0) {
return ENOMEM;
+ }
psmx = psattr->psa_mac_extensions = reallocf(psmx, extsize);
- if (psmx == NULL)
+ if (psmx == NULL) {
return ENOMEM;
+ }
psmx->psmx_alloc = newnum;
}
extension = &psmx->psmx_extensions[psmx->psmx_count];
return 0;
}
-int posix_spawnattr_setcoalition_np(const posix_spawnattr_t * __restrict attr,
- uint64_t coalitionid, int type, int role)
+/*
+ * posix_spawn_destroymacpolicy_info_np
+ * Description: cleanup the macpolicy struct in posix_spawnattr_t attr
+ */
+static int
+posix_spawn_destroymacpolicy_info_np(posix_spawnattr_t *attr)
+{
+ _posix_spawnattr_t psattr;
+ _posix_spawn_mac_policy_extensions_t psmx;
+
+ if (attr == NULL || *attr == NULL) {
+ return EINVAL;
+ }
+
+ psattr = *(_posix_spawnattr_t *)attr;
+ psmx = psattr->psa_mac_extensions;
+ if (psmx == NULL) {
+ return EINVAL;
+ }
+
+ psattr->psa_mac_extensions = NULL;
+ free(psmx);
+ return 0;
+}
+
+int
+posix_spawnattr_setcoalition_np(const posix_spawnattr_t * __restrict attr,
+ uint64_t coalitionid, int type, int role)
{
_posix_spawnattr_t psattr;
struct _posix_spawn_coalition_info *coal_info;
if (attr == NULL || *attr == NULL) {
return EINVAL;
}
- if (type < 0 || type > COALITION_TYPE_MAX)
+ if (type < 0 || type > COALITION_TYPE_MAX) {
return EINVAL;
+ }
psattr = *(_posix_spawnattr_t *)attr;
coal_info = psattr->psa_coalition_info;
if (!coal_info) {
coal_info = (struct _posix_spawn_coalition_info *)malloc(sizeof(*coal_info));
- if (!coal_info)
+ if (!coal_info) {
return ENOMEM;
+ }
memset(coal_info, 0, sizeof(*coal_info));
psattr->psa_coalition_info = coal_info;
}
}
-int posix_spawnattr_set_qos_clamp_np(const posix_spawnattr_t * __restrict attr, uint64_t qos_clamp)
+int
+posix_spawnattr_set_qos_clamp_np(const posix_spawnattr_t * __restrict attr, uint64_t qos_clamp)
{
_posix_spawnattr_t psattr;
return EINVAL;
}
- if (qos_clamp >= POSIX_SPAWN_PROC_CLAMP_LAST)
+ if (qos_clamp >= POSIX_SPAWN_PROC_CLAMP_LAST) {
return EINVAL;
+ }
psattr = *(_posix_spawnattr_t *)attr;
psattr->psa_qos_clamp = qos_clamp;
psattr = *(_posix_spawnattr_t *)attr;
*qos_clampp = psattr->psa_qos_clamp;
- return (0);
+ return 0;
}
-int posix_spawnattr_set_darwin_role_np(const posix_spawnattr_t * __restrict attr, uint64_t darwin_role)
+int
+posix_spawnattr_set_darwin_role_np(const posix_spawnattr_t * __restrict attr, uint64_t darwin_role)
{
_posix_spawnattr_t psattr;
psattr = *(_posix_spawnattr_t *)attr;
*darwin_rolep = psattr->psa_darwin_role;
- return (0);
+ return 0;
}
_posix_spawnattr_t psattr;
struct _posix_spawn_persona_info *persona;
- if (attr == NULL || *attr == NULL)
+ if (attr == NULL || *attr == NULL) {
return EINVAL;
+ }
- if (flags & ~POSIX_SPAWN_PERSONA_ALL_FLAGS)
+ if (flags & ~POSIX_SPAWN_PERSONA_ALL_FLAGS) {
return EINVAL;
+ }
psattr = *(_posix_spawnattr_t *)attr;
persona = psattr->psa_persona_info;
if (!persona) {
persona = (struct _posix_spawn_persona_info *)malloc(sizeof(*persona));
- if (!persona)
+ if (!persona) {
return ENOMEM;
+ }
persona->pspi_uid = 0;
persona->pspi_gid = 0;
persona->pspi_ngroups = 0;
persona->pspi_groups[0] = 0;
+ persona->pspi_gmuid = 0;
psattr->psa_persona_info = persona;
}
_posix_spawnattr_t psattr;
struct _posix_spawn_persona_info *persona;
- if (attr == NULL || *attr == NULL)
+ if (attr == NULL || *attr == NULL) {
return EINVAL;
+ }
psattr = *(_posix_spawnattr_t *)attr;
persona = psattr->psa_persona_info;
- if (!persona)
+ if (!persona) {
return EINVAL;
+ }
- if (!(persona->pspi_flags & (POSIX_SPAWN_PERSONA_FLAGS_OVERRIDE | POSIX_SPAWN_PERSONA_FLAGS_VERIFY)))
+ if (!(persona->pspi_flags & (POSIX_SPAWN_PERSONA_FLAGS_OVERRIDE | POSIX_SPAWN_PERSONA_FLAGS_VERIFY))) {
return EINVAL;
+ }
persona->pspi_uid = uid;
_posix_spawnattr_t psattr;
struct _posix_spawn_persona_info *persona;
- if (attr == NULL || *attr == NULL)
+ if (attr == NULL || *attr == NULL) {
return EINVAL;
+ }
psattr = *(_posix_spawnattr_t *)attr;
persona = psattr->psa_persona_info;
- if (!persona)
+ if (!persona) {
return EINVAL;
+ }
- if (!(persona->pspi_flags & (POSIX_SPAWN_PERSONA_FLAGS_OVERRIDE | POSIX_SPAWN_PERSONA_FLAGS_VERIFY)))
+ if (!(persona->pspi_flags & (POSIX_SPAWN_PERSONA_FLAGS_OVERRIDE | POSIX_SPAWN_PERSONA_FLAGS_VERIFY))) {
return EINVAL;
+ }
persona->pspi_gid = gid;
_posix_spawnattr_t psattr;
struct _posix_spawn_persona_info *persona;
- if (attr == NULL || *attr == NULL)
+ if (attr == NULL || *attr == NULL) {
return EINVAL;
+ }
- if (gidarray == NULL)
+ if (gidarray == NULL) {
return EINVAL;
+ }
- if (ngroups > NGROUPS || ngroups < 0)
+ if (ngroups > NGROUPS || ngroups < 0) {
return EINVAL;
+ }
psattr = *(_posix_spawnattr_t *)attr;
persona = psattr->psa_persona_info;
- if (!persona)
+ if (!persona) {
return EINVAL;
+ }
- if (!(persona->pspi_flags & (POSIX_SPAWN_PERSONA_FLAGS_OVERRIDE | POSIX_SPAWN_PERSONA_FLAGS_VERIFY)))
+ if (!(persona->pspi_flags & (POSIX_SPAWN_PERSONA_FLAGS_OVERRIDE | POSIX_SPAWN_PERSONA_FLAGS_VERIFY))) {
return EINVAL;
+ }
persona->pspi_ngroups = ngroups;
- for (int i = 0; i < ngroups; i++)
+ for (int i = 0; i < ngroups; i++) {
persona->pspi_groups[i] = gidarray[i];
+ }
persona->pspi_gmuid = gmuid;
return 0;
}
+static struct _posix_spawn_posix_cred_info *
+_posix_spawnattr_get_posix_creds_info(_posix_spawnattr_t psattr)
+{
+ struct _posix_spawn_posix_cred_info *pspci = psattr->psa_posix_cred_info;
+
+ if (pspci == NULL) {
+ pspci = malloc(sizeof(struct _posix_spawn_posix_cred_info));
+ if (pspci != NULL) {
+ pspci->pspci_flags = 0;
+ pspci->pspci_uid = 0;
+ pspci->pspci_gid = 0;
+ pspci->pspci_ngroups = 0;
+ pspci->pspci_groups[0] = 0;
+ pspci->pspci_gmuid = 0;
+ pspci->pspci_login[0] = '\0';
+ psattr->psa_posix_cred_info = pspci;
+ }
+ }
+ return pspci;
+}
+
+int
+posix_spawnattr_set_uid_np(const posix_spawnattr_t *attr, uid_t uid)
+{
+ struct _posix_spawn_posix_cred_info *pspci;
+
+ if (attr == NULL || *attr == NULL) {
+ return EINVAL;
+ }
+
+ pspci = _posix_spawnattr_get_posix_creds_info(*(_posix_spawnattr_t *)attr);
+ if (pspci == NULL) {
+ return ENOMEM;
+ }
+
+ pspci->pspci_uid = uid;
+
+ pspci->pspci_flags |= POSIX_SPAWN_POSIX_CRED_UID;
+
+ return 0;
+}
+
+int
+posix_spawnattr_set_gid_np(const posix_spawnattr_t *attr, gid_t gid)
+{
+ struct _posix_spawn_posix_cred_info *pspci;
+
+ if (attr == NULL || *attr == NULL) {
+ return EINVAL;
+ }
+
+ pspci = _posix_spawnattr_get_posix_creds_info(*(_posix_spawnattr_t *)attr);
+ if (pspci == NULL) {
+ return ENOMEM;
+ }
+
+ pspci->pspci_gid = gid;
+
+ pspci->pspci_flags |= POSIX_SPAWN_POSIX_CRED_GID;
+
+ return 0;
+}
+
+int
+posix_spawnattr_set_groups_np(const posix_spawnattr_t *attr,
+ int ngroups, gid_t *gidarray, uid_t gmuid)
+{
+ struct _posix_spawn_posix_cred_info *pspci;
+
+ if (attr == NULL || *attr == NULL) {
+ return EINVAL;
+ }
+
+ if (gidarray == NULL) {
+ return EINVAL;
+ }
+
+ if (ngroups > NGROUPS || ngroups < 0) {
+ return EINVAL;
+ }
+
+ pspci = _posix_spawnattr_get_posix_creds_info(*(_posix_spawnattr_t *)attr);
+ if (pspci == NULL) {
+ return ENOMEM;
+ }
+
+ pspci->pspci_ngroups = ngroups;
+ for (int i = 0; i < ngroups; i++) {
+ pspci->pspci_groups[i] = gidarray[i];
+ }
+
+ pspci->pspci_gmuid = gmuid;
+
+ pspci->pspci_flags |= POSIX_SPAWN_POSIX_CRED_GROUPS;
+
+ return 0;
+}
+
+int
+posix_spawnattr_set_login_np(const posix_spawnattr_t *attr, const char *login)
+{
+ struct _posix_spawn_posix_cred_info *pspci;
+
+ if (attr == NULL || *attr == NULL) {
+ return EINVAL;
+ }
+
+ if (strlen(login) > MAXLOGNAME) {
+ return ERANGE;
+ }
+
+ pspci = _posix_spawnattr_get_posix_creds_info(*(_posix_spawnattr_t *)attr);
+ if (pspci == NULL) {
+ return ENOMEM;
+ }
+
+ strlcpy(pspci->pspci_login, login, sizeof(pspci->pspci_login));
+
+ pspci->pspci_flags |= POSIX_SPAWN_POSIX_CRED_LOGIN;
+
+ return 0;
+}
+
+/*
+ * posix_spawnattr_set_jetsam_ttr_np
+ *
+ * Description: Pass data regarding recent relaunch behavior when jetsammed for the process.
+ * The recent history is effectively converted into a histogram and the highest
+ * frequency bucket defines the "type" of the process. The type is passed along
+ * to the jetsam code as part of psa_jetsam_flags.
+ *
+ * Parameters: count Number of entries in the ttrs_millis array
+ * ttrs_millis Array of raw data for relaunch behavior
+ *
+ * Returns: 0 Success
+ * EINVAL Bad attr pointer or empty data array
+ */
+int
+posix_spawnattr_set_jetsam_ttr_np(const posix_spawnattr_t * __restrict attr, uint32_t count, uint32_t *ttrs_millis)
+{
+ _posix_spawnattr_t psattr;
+
+ /*
+ * Define the bucketizing policy which would be used to generate the histogram. These
+ * values are based on looking at data from various Avg. Joanna runs.
+ */
+ static const uint32_t relaunch_buckets_msecs[POSIX_SPAWN_JETSAM_RELAUNCH_BEHAVIOR_BUCKETS] = {
+ 5000,
+ 10000,
+ UINT32_MAX
+ };
+ static const uint32_t relaunch_jetsam_flags[POSIX_SPAWN_JETSAM_RELAUNCH_BEHAVIOR_BUCKETS] = {
+ POSIX_SPAWN_JETSAM_RELAUNCH_BEHAVIOR_HIGH,
+ POSIX_SPAWN_JETSAM_RELAUNCH_BEHAVIOR_MED,
+ POSIX_SPAWN_JETSAM_RELAUNCH_BEHAVIOR_LOW
+ };
+
+ /* Make sure the attr pointer is valid */
+ if (attr == NULL || *attr == NULL) {
+ return EINVAL;
+ }
+
+ /* Make sure the count of entries is non-zero */
+ if (count == 0) {
+ return EINVAL;
+ }
+
+ psattr = *(_posix_spawnattr_t *)attr;
+
+ /* Generate a histogram based on the relaunch data while maintaining highest frequency bucket info */
+ int relaunch_histogram[POSIX_SPAWN_JETSAM_RELAUNCH_BEHAVIOR_BUCKETS] = {0};
+ int max_frequency = -1;
+ int highest_frequency_bucket = -1;
+
+ for (uint32_t i = 0; i < count; i++) {
+ /* For each data point passed in via launchd, find the bucket it lands in */
+ for (uint32_t bucket = 0; bucket < POSIX_SPAWN_JETSAM_RELAUNCH_BEHAVIOR_BUCKETS; bucket++) {
+ if (ttrs_millis[i] <= relaunch_buckets_msecs[bucket]) {
+ relaunch_histogram[bucket]++;
+
+ /* Check if the bucket is the highest frequency bucket now */
+ if (relaunch_histogram[bucket] > max_frequency) {
+ max_frequency = relaunch_histogram[bucket];
+ highest_frequency_bucket = bucket;
+ }
+ break;
+ }
+ }
+ }
+ psattr->psa_jetsam_flags |= relaunch_jetsam_flags[highest_frequency_bucket];
+ return 0;
+}
+
/*
* posix_spawn
*
* 0 or a -1, with the 'errno' variable being set.
*/
extern int __posix_spawn(pid_t * __restrict, const char * __restrict,
- struct _posix_spawn_args_desc *,
- char *const argv[ __restrict], char *const envp[ __restrict]);
+ struct _posix_spawn_args_desc *,
+ char *const argv[__restrict], char *const envp[__restrict]);
int
posix_spawn(pid_t * __restrict pid, const char * __restrict path,
- const posix_spawn_file_actions_t *file_actions,
- const posix_spawnattr_t * __restrict attrp,
- char *const argv[ __restrict], char *const envp[ __restrict])
+ const posix_spawn_file_actions_t *file_actions,
+ const posix_spawnattr_t * __restrict attrp,
+ char *const argv[__restrict], char *const envp[__restrict])
{
int saveerrno = errno;
int ret;
* kernel efficiency, even though it would mean copying
* the data in user space.
*/
- if ((file_actions != NULL && (*file_actions != NULL) && (*(_posix_spawn_file_actions_t *)file_actions)->psfa_act_count > 0) || attrp != NULL) {
- struct _posix_spawn_args_desc ad;
+ if ((file_actions != NULL && (*file_actions != NULL) && (*(_posix_spawn_file_actions_t *)file_actions)->psfa_act_count > 0) || attrp != NULL) {
+ struct _posix_spawn_args_desc ad;
memset(&ad, 0, sizeof(ad));
if (attrp != NULL && *attrp != NULL) {
ad.persona_info_size = sizeof(struct _posix_spawn_persona_info);
ad.persona_info = psattr->psa_persona_info;
}
+ if (psattr->psa_posix_cred_info != NULL) {
+ ad.posix_cred_info_size = sizeof(struct _posix_spawn_posix_cred_info);
+ ad.posix_cred_info = psattr->psa_posix_cred_info;
+ }
}
if (file_actions != NULL && *file_actions != NULL) {
_posix_spawn_file_actions_t psactsp =
- *(_posix_spawn_file_actions_t *)file_actions;
+ *(_posix_spawn_file_actions_t *)file_actions;
if (psactsp->psfa_act_count > 0) {
size_t fa_size = PSF_ACTIONS_SIZE(psactsp->psfa_act_count);
}
ret = __posix_spawn(pid, path, &ad, argv, envp);
- } else
+ } else {
ret = __posix_spawn(pid, path, NULL, argv, envp);
+ }
out:
- if (ret < 0)
+ if (ret < 0) {
ret = errno;
+ }
errno = saveerrno;
return ret;
}
-
projects / apple / xnu.git / blobdiff