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/*
* Copyright (c) 2005-2016 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_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. The rights granted to you under the License
* may not be used to create, or enable the creation or redistribution of,
* unlawful or unlicensed copies of an Apple operating system, or to
* circumvent, violate, or enable the circumvention or violation of, any
* terms of an Apple operating system software license agreement.
*
* 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,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
* 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_OSREFERENCE_LICENSE_HEADER_END@
*/
/*
* sysctl system call.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/proc_internal.h>
#include <sys/kauth.h>
#include <sys/file_internal.h>
#include <sys/vnode_internal.h>
#include <sys/unistd.h>
#include <sys/buf.h>
#include <sys/ioctl.h>
#include <sys/namei.h>
#include <sys/tty.h>
#include <sys/disklabel.h>
#include <sys/vm.h>
#include <sys/reason.h>
#include <sys/sysctl.h>
#include <sys/user.h>
#include <sys/aio_kern.h>
#include <sys/kern_memorystatus.h>
#include <security/audit/audit.h>
#include <mach/machine.h>
#include <mach/mach_types.h>
#include <mach/vm_param.h>
#include <kern/task.h>
#include <kern/kalloc.h>
#include <kern/assert.h>
#include <kern/policy_internal.h>
#include <vm/vm_kern.h>
#include <vm/vm_map.h>
#include <mach/host_info.h>
#include <mach/task_info.h>
#include <mach/thread_info.h>
#include <mach/vm_region.h>
#include <mach/vm_types.h>
#include <sys/mount_internal.h>
#include <sys/proc_info.h>
#include <sys/bsdtask_info.h>
#include <sys/kdebug.h>
#include <sys/sysproto.h>
#include <sys/msgbuf.h>
#include <sys/priv.h>
#include <sys/guarded.h>
#include <machine/machine_routines.h>
#include <kern/ipc_misc.h>
#include <vm/vm_protos.h>
/* Needed by proc_pidnoteexit(), proc_pidlistuptrs() */
#include <sys/event.h>
#include <sys/codesign.h>
/* Needed by proc_listcoalitions() */
#ifdef CONFIG_COALITIONS
#include <sys/coalition.h>
#endif
#if CONFIG_MACF
#include <security/mac_framework.h>
#endif
struct pshmnode;
struct psemnode;
struct pipe;
struct kqueue;
struct atalk;
uint64_t get_dispatchqueue_offset_from_proc(void *);
uint64_t get_dispatchqueue_serialno_offset_from_proc(void *);
uint64_t get_return_to_kernel_offset_from_proc(void *p);
int proc_info_internal(int callnum, int pid, int flavor, uint64_t arg, user_addr_t buffer, uint32_t buffersize, int32_t * retval);
/*
* TODO: Replace the noinline attribute below. Currently, it serves
* to avoid stack bloat caused by inlining multiple functions that
* have large stack footprints; when the functions are independent
* of each other (will not both be called in any given call to the
* caller), this only serves to bloat the stack, as we allocate
* space for both functions, despite the fact that we only need a
* fraction of that space.
*
* Long term, these functions should not be allocating everything on
* the stack, and should move large allocations (the huge structs
* that proc info deals in) to the heap, or eliminate them if
* possible.
*
* The functions that most desperately need to improve stack usage
* (starting with the worst offenders):
* proc_pidvnodepathinfo
* proc_pidinfo
* proc_pidregionpathinfo
* pid_vnodeinfopath
* pid_pshminfo
* pid_pseminfo
* pid_socketinfo
* proc_pid_rusage
* proc_pidoriginatorinfo
*/
/* protos for proc_info calls */
int __attribute__ ((noinline)) proc_listpids(uint32_t type, uint32_t tyoneinfo, user_addr_t buffer, uint32_t buffersize, int32_t * retval);
int __attribute__ ((noinline)) proc_pidinfo(int pid, int flavor, uint64_t arg, user_addr_t buffer, uint32_t buffersize, int32_t * retval);
int __attribute__ ((noinline)) proc_pidfdinfo(int pid, int flavor,int fd, user_addr_t buffer, uint32_t buffersize, int32_t * retval);
int __attribute__ ((noinline)) proc_kernmsgbuf(user_addr_t buffer, uint32_t buffersize, int32_t * retval);
int __attribute__ ((noinline)) proc_setcontrol(int pid, int flavor, uint64_t arg, user_addr_t buffer, uint32_t buffersize, int32_t * retval);
int __attribute__ ((noinline)) proc_pidfileportinfo(int pid, int flavor, mach_port_name_t name, user_addr_t buffer, uint32_t buffersize, int32_t *retval);
int __attribute__ ((noinline)) proc_dirtycontrol(int pid, int flavor, uint64_t arg, int32_t * retval);
int __attribute__ ((noinline)) proc_terminate(int pid, int32_t * retval);
int __attribute__ ((noinline)) proc_pid_rusage(int pid, int flavor, user_addr_t buffer, int32_t * retval);
int __attribute__ ((noinline)) proc_pidoriginatorinfo(int pid, int flavor, user_addr_t buffer, uint32_t buffersize, int32_t * retval);
int __attribute__ ((noinline)) proc_listcoalitions(int flavor, int coaltype, user_addr_t buffer, uint32_t buffersize, int32_t *retval);
int __attribute__ ((noinline)) proc_can_use_foreground_hw(int pid, user_addr_t reason, uint32_t resonsize, int32_t *retval);
/* protos for procpidinfo calls */
int __attribute__ ((noinline)) proc_pidfdlist(proc_t p, user_addr_t buffer, uint32_t buffersize, int32_t *retval);
int __attribute__ ((noinline)) proc_pidbsdinfo(proc_t p, struct proc_bsdinfo *pbsd, int zombie);
int __attribute__ ((noinline)) proc_pidshortbsdinfo(proc_t p, struct proc_bsdshortinfo *pbsd_shortp, int zombie);
int __attribute__ ((noinline)) proc_pidtaskinfo(proc_t p, struct proc_taskinfo *ptinfo);
int __attribute__ ((noinline)) proc_pidthreadinfo(proc_t p, uint64_t arg, bool thuniqueid, struct proc_threadinfo *pthinfo);
int __attribute__ ((noinline)) proc_pidthreadpathinfo(proc_t p, uint64_t arg, struct proc_threadwithpathinfo *pinfo);
int __attribute__ ((noinline)) proc_pidlistthreads(proc_t p, bool thuniqueid, user_addr_t buffer, uint32_t buffersize, int32_t *retval);
int __attribute__ ((noinline)) proc_pidregioninfo(proc_t p, uint64_t arg, user_addr_t buffer, uint32_t buffersize, int32_t *retval);
int __attribute__ ((noinline)) proc_pidregionpathinfo(proc_t p, uint64_t arg, user_addr_t buffer, uint32_t buffersize, int32_t *retval);
int __attribute__ ((noinline)) proc_pidregionpathinfo2(proc_t p, uint64_t arg, user_addr_t buffer, uint32_t buffersize, int32_t *retval);
int __attribute__ ((noinline)) proc_pidregionpathinfo3(proc_t p, uint64_t arg, user_addr_t buffer, uint32_t buffersize, int32_t *retval);
int __attribute__ ((noinline)) proc_pidvnodepathinfo(proc_t p, uint64_t arg, user_addr_t buffer, uint32_t buffersize, int32_t *retval);
int __attribute__ ((noinline)) proc_pidpathinfo(proc_t p, uint64_t arg, user_addr_t buffer, uint32_t buffersize, int32_t *retval);
int __attribute__ ((noinline)) proc_pidworkqueueinfo(proc_t p, struct proc_workqueueinfo *pwqinfo);
int __attribute__ ((noinline)) proc_pidfileportlist(proc_t p, user_addr_t buffer, uint32_t buffersize, int32_t *retval);
void __attribute__ ((noinline)) proc_piduniqidentifierinfo(proc_t p, struct proc_uniqidentifierinfo *p_uniqidinfo);
void __attribute__ ((noinline)) proc_archinfo(proc_t p, struct proc_archinfo *pai);
void __attribute__ ((noinline)) proc_pidcoalitioninfo(proc_t p, struct proc_pidcoalitioninfo *pci);
int __attribute__ ((noinline)) proc_pidnoteexit(proc_t p, uint64_t arg, uint32_t *data);
int __attribute__ ((noinline)) proc_pidexitreasoninfo(proc_t p, struct proc_exitreasoninfo *peri, struct proc_exitreasonbasicinfo *pberi);
int __attribute__ ((noinline)) proc_pidoriginatorpid_uuid(uuid_t uuid, uint32_t buffersize, pid_t *pid);
int __attribute__ ((noinline)) proc_pidlistuptrs(proc_t p, user_addr_t buffer, uint32_t buffersize, int32_t *retval);
int __attribute__ ((noinline)) proc_piddynkqueueinfo(pid_t pid, int flavor, kqueue_id_t id, user_addr_t buffer, uint32_t buffersize, int32_t *retval);
#if !CONFIG_EMBEDDED
int __attribute__ ((noinline)) proc_udata_info(pid_t pid, int flavor, user_addr_t buffer, uint32_t buffersize, int32_t *retval);
#endif
/* protos for proc_pidfdinfo calls */
int __attribute__ ((noinline)) pid_vnodeinfo(vnode_t vp, uint32_t vid, struct fileproc * fp,proc_t proc, int fd, user_addr_t buffer, uint32_t buffersize, int32_t * retval);
int __attribute__ ((noinline)) pid_vnodeinfopath(vnode_t vp, uint32_t vid, struct fileproc * fp,proc_t proc, int fd, user_addr_t buffer, uint32_t buffersize, int32_t * retval);
int __attribute__ ((noinline)) pid_socketinfo(socket_t so, struct fileproc *fp,proc_t proc, int fd, user_addr_t buffer, uint32_t buffersize, int32_t * retval);
int __attribute__ ((noinline)) pid_pseminfo(struct psemnode * psem, struct fileproc * fp, proc_t proc, int fd, user_addr_t buffer, uint32_t buffersize, int32_t * retval);
int __attribute__ ((noinline)) pid_pshminfo(struct pshmnode * pshm, struct fileproc * fp, proc_t proc, int fd, user_addr_t buffer, uint32_t buffersize, int32_t * retval);
int __attribute__ ((noinline)) pid_pipeinfo(struct pipe * p, struct fileproc * fp, proc_t proc, int fd, user_addr_t buffer, uint32_t buffersize, int32_t * retval);
int __attribute__ ((noinline)) pid_kqueueinfo(struct kqueue * kq, struct fileproc * fp, proc_t proc, int fd, user_addr_t buffer, uint32_t buffersize, int32_t * retval);
int __attribute__ ((noinline)) pid_atalkinfo(struct atalk * at, struct fileproc * fp, proc_t proc, int fd, user_addr_t buffer, uint32_t buffersize, int32_t * retval);
/* protos for misc */
int fill_vnodeinfo(vnode_t vp, struct vnode_info *vinfo);
void fill_fileinfo(struct fileproc * fp, proc_t proc, int fd, struct proc_fileinfo * finfo);
int proc_security_policy(proc_t targetp, int callnum, int flavor, boolean_t check_same_user);
static void munge_vinfo_stat(struct stat64 *sbp, struct vinfo_stat *vsbp);
static int proc_piduuidinfo(pid_t pid, uuid_t uuid_buf, uint32_t buffersize);
int proc_pidpathinfo_internal(proc_t p, __unused uint64_t arg, char *buf, uint32_t buffersize, __unused int32_t *retval);
extern int cansignal(struct proc *, kauth_cred_t, struct proc *, int);
extern int proc_get_rusage(proc_t proc, int flavor, user_addr_t buffer, int is_zombie);
#define CHECK_SAME_USER TRUE
#define NO_CHECK_SAME_USER FALSE
uint64_t get_dispatchqueue_offset_from_proc(void *p)
{
if(p != NULL) {
proc_t pself = (proc_t)p;
return (pself->p_dispatchqueue_offset);
} else {
return (uint64_t)0;
}
}
uint64_t get_dispatchqueue_serialno_offset_from_proc(void *p)
{
if(p != NULL) {
proc_t pself = (proc_t)p;
return (pself->p_dispatchqueue_serialno_offset);
} else {
return (uint64_t)0;
}
}
uint64_t get_return_to_kernel_offset_from_proc(void *p)
{
if (p != NULL) {
proc_t pself = (proc_t)p;
return (pself->p_return_to_kernel_offset);
} else {
return (uint64_t)0;
}
}
/***************************** proc_info ********************/
int
proc_info(__unused struct proc *p, struct proc_info_args * uap, int32_t *retval)
{
return(proc_info_internal(uap->callnum, uap->pid, uap->flavor, uap->arg, uap->buffer, uap->buffersize, retval));
}
int
proc_info_internal(int callnum, int pid, int flavor, uint64_t arg, user_addr_t buffer, uint32_t buffersize, int32_t * retval)
{
switch(callnum) {
case PROC_INFO_CALL_LISTPIDS:
/* pid contains type and flavor contains typeinfo */
return(proc_listpids(pid, flavor, buffer, buffersize, retval));
case PROC_INFO_CALL_PIDINFO:
return(proc_pidinfo(pid, flavor, arg, buffer, buffersize, retval));
case PROC_INFO_CALL_PIDFDINFO:
return(proc_pidfdinfo(pid, flavor, (int)arg, buffer, buffersize, retval));
case PROC_INFO_CALL_KERNMSGBUF:
return(proc_kernmsgbuf(buffer, buffersize, retval));
case PROC_INFO_CALL_SETCONTROL:
return(proc_setcontrol(pid, flavor, arg, buffer, buffersize, retval));
case PROC_INFO_CALL_PIDFILEPORTINFO:
return(proc_pidfileportinfo(pid, flavor, (mach_port_name_t)arg, buffer, buffersize, retval));
case PROC_INFO_CALL_TERMINATE:
return(proc_terminate(pid, retval));
case PROC_INFO_CALL_DIRTYCONTROL:
return(proc_dirtycontrol(pid, flavor, arg, retval));
case PROC_INFO_CALL_PIDRUSAGE:
return (proc_pid_rusage(pid, flavor, buffer, retval));
case PROC_INFO_CALL_PIDORIGINATORINFO:
return (proc_pidoriginatorinfo(pid, flavor, buffer, buffersize, retval));
case PROC_INFO_CALL_LISTCOALITIONS:
return proc_listcoalitions(pid /* flavor */, flavor /* coaltype */, buffer,
buffersize, retval);
case PROC_INFO_CALL_CANUSEFGHW:
return proc_can_use_foreground_hw(pid, buffer, buffersize, retval);
case PROC_INFO_CALL_PIDDYNKQUEUEINFO:
return proc_piddynkqueueinfo(pid, flavor, (kqueue_id_t)arg, buffer, buffersize, retval);
#if !CONFIG_EMBEDDED
case PROC_INFO_CALL_UDATA_INFO:
return proc_udata_info(pid, flavor, buffer, buffersize, retval);
#endif /* !CONFIG_EMBEDDED */
default:
return EINVAL;
}
return(EINVAL);
}
/******************* proc_listpids routine ****************/
int
proc_listpids(uint32_t type, uint32_t typeinfo, user_addr_t buffer, uint32_t buffersize, int32_t * retval)
{
uint32_t numprocs = 0;
uint32_t wantpids;
char * kbuf;
int * ptr;
uint32_t n;
int skip;
struct proc * p;
struct tty * tp;
int error = 0;
struct proclist *current_list;
/* Do we have permission to look into this? */
if ((error = proc_security_policy(PROC_NULL, PROC_INFO_CALL_LISTPIDS, type, NO_CHECK_SAME_USER)))
return (error);
/* if the buffer is null, return num of procs */
if (buffer == (user_addr_t)0) {
*retval = ((nprocs + 20) * sizeof(int));
return(0);
}
if (buffersize < sizeof(int)) {
return(ENOMEM);
}
wantpids = buffersize/sizeof(int);
if ((nprocs + 20) > 0) {
numprocs = (uint32_t)(nprocs + 20);
}
if (numprocs > wantpids) {
numprocs = wantpids;
}
kbuf = (char *)kalloc((vm_size_t)(numprocs * sizeof(int)));
if (kbuf == NULL) {
return(ENOMEM);
}
bzero(kbuf, sizeof(int));
proc_list_lock();
n = 0;
ptr = (int *)kbuf;
current_list = &allproc;
proc_loop:
LIST_FOREACH(p, current_list, p_list) {
skip = 0;
switch (type) {
case PROC_PGRP_ONLY:
if (p->p_pgrpid != (pid_t)typeinfo)
skip = 1;
break;
case PROC_PPID_ONLY:
if ((p->p_ppid != (pid_t)typeinfo) && (((p->p_lflag & P_LTRACED) == 0) || (p->p_oppid != (pid_t)typeinfo)))
skip = 1;
break;
case PROC_ALL_PIDS:
skip = 0;
break;
case PROC_TTY_ONLY:
/* racy but list lock is held */
if ((p->p_flag & P_CONTROLT) == 0 ||
(p->p_pgrp == NULL) || (p->p_pgrp->pg_session == NULL) ||
(tp = SESSION_TP(p->p_pgrp->pg_session)) == TTY_NULL ||
tp->t_dev != (dev_t)typeinfo)
skip = 1;
break;
case PROC_UID_ONLY:
if (p->p_ucred == NULL)
skip = 1;
else {
kauth_cred_t my_cred;
uid_t uid;
my_cred = kauth_cred_proc_ref(p);
uid = kauth_cred_getuid(my_cred);
kauth_cred_unref(&my_cred);
if (uid != (uid_t)typeinfo)
skip = 1;
}
break;
case PROC_RUID_ONLY:
if (p->p_ucred == NULL)
skip = 1;
else {
kauth_cred_t my_cred;
uid_t uid;
my_cred = kauth_cred_proc_ref(p);
uid = kauth_cred_getruid(my_cred);
kauth_cred_unref(&my_cred);
if (uid != (uid_t)typeinfo)
skip = 1;
}
break;
case PROC_KDBG_ONLY:
if (p->p_kdebug == 0) {
skip = 1;
}
break;
default:
skip = 1;
break;
};
if(skip == 0) {
*ptr++ = p->p_pid;
n++;
}
if (n >= numprocs)
break;
}
if ((n < numprocs) && (current_list == &allproc)) {
current_list = &zombproc;
goto proc_loop;
}
proc_list_unlock();
ptr = (int *)kbuf;
error = copyout((caddr_t)ptr, buffer, n * sizeof(int));
if (error == 0)
*retval = (n * sizeof(int));
kfree((void *)kbuf, (vm_size_t)(numprocs * sizeof(int)));
return(error);
}
/********************************** proc_pidfdlist routines ********************************/
int
proc_pidfdlist(proc_t p, user_addr_t buffer, uint32_t buffersize, int32_t *retval)
{
uint32_t numfds = 0;
uint32_t needfds;
char * kbuf;
struct proc_fdinfo * pfd;
struct fileproc * fp;
int n;
int count = 0;
int error = 0;
if (p->p_fd->fd_nfiles > 0) {
numfds = (uint32_t)p->p_fd->fd_nfiles;
}
if (buffer == (user_addr_t) 0) {
numfds += 20;
*retval = (numfds * sizeof(struct proc_fdinfo));
return(0);
}
/* buffersize is big enough atleast for one struct */
needfds = buffersize/sizeof(struct proc_fdinfo);
if (numfds > needfds) {
numfds = needfds;
}
kbuf = (char *)kalloc((vm_size_t)(numfds * sizeof(struct proc_fdinfo)));
if (kbuf == NULL)
return(ENOMEM);
bzero(kbuf, numfds * sizeof(struct proc_fdinfo));
proc_fdlock(p);
pfd = (struct proc_fdinfo *)kbuf;
for (n = 0; ((n < (int)numfds) && (n < p->p_fd->fd_nfiles)); n++) {
if (((fp = p->p_fd->fd_ofiles[n]) != 0)
&& ((p->p_fd->fd_ofileflags[n] & UF_RESERVED) == 0)) {
file_type_t fdtype = FILEGLOB_DTYPE(fp->f_fglob);
pfd->proc_fd = n;
pfd->proc_fdtype = (fdtype != DTYPE_ATALK) ?
fdtype : PROX_FDTYPE_ATALK;
count++;
pfd++;
}
}
proc_fdunlock(p);
error = copyout(kbuf, buffer, count * sizeof(struct proc_fdinfo));
kfree((void *)kbuf, (vm_size_t)(numfds * sizeof(struct proc_fdinfo)));
if (error == 0)
*retval = (count * sizeof(struct proc_fdinfo));
return(error);
}
/*
* Helper functions for proc_pidfileportlist.
*/
static int
proc_fileport_count(__unused mach_port_name_t name,
__unused struct fileglob *fg, void *arg)
{
uint32_t *counter = arg;
*counter += 1;
return (0);
}
struct fileport_fdtype_args {
struct proc_fileportinfo *ffa_pfi;
struct proc_fileportinfo *ffa_pfi_end;
};
static int
proc_fileport_fdtype(mach_port_name_t name, struct fileglob *fg, void *arg)
{
struct fileport_fdtype_args *ffa = arg;
if (ffa->ffa_pfi != ffa->ffa_pfi_end) {
file_type_t fdtype = FILEGLOB_DTYPE(fg);
ffa->ffa_pfi->proc_fdtype = (fdtype != DTYPE_ATALK) ?
fdtype : PROX_FDTYPE_ATALK;
ffa->ffa_pfi->proc_fileport = name;
ffa->ffa_pfi++;
return (0); /* keep walking */
} else
return (-1); /* stop the walk! */
}
int
proc_pidfileportlist(proc_t p,
user_addr_t buffer, uint32_t buffersize, int32_t *retval)
{
void *kbuf;
vm_size_t kbufsize;
struct proc_fileportinfo *pfi;
uint32_t needfileports, numfileports;
struct fileport_fdtype_args ffa;
int error;
needfileports = buffersize / sizeof (*pfi);
if ((user_addr_t)0 == buffer || needfileports > (uint32_t)maxfiles) {
/*
* Either (i) the user is asking for a fileport count,
* or (ii) the number of fileports they're asking for is
* larger than the maximum number of open files (!); count
* them to bound subsequent heap allocations.
*/
numfileports = 0;
switch (fileport_walk(p->task,
proc_fileport_count, &numfileports)) {
case KERN_SUCCESS:
break;
case KERN_RESOURCE_SHORTAGE:
return (ENOMEM);
case KERN_INVALID_TASK:
return (ESRCH);
default:
return (EINVAL);
}
if (numfileports == 0) {
*retval = 0; /* none at all, bail */
return (0);
}
if ((user_addr_t)0 == buffer) {
numfileports += 20; /* accelerate convergence */
*retval = numfileports * sizeof (*pfi);
return (0);
}
if (needfileports > numfileports)
needfileports = numfileports;
}
assert(buffersize >= PROC_PIDLISTFILEPORTS_SIZE);
kbufsize = (vm_size_t)needfileports * sizeof (*pfi);
pfi = kbuf = kalloc(kbufsize);
if (kbuf == NULL)
return (ENOMEM);
bzero(kbuf, kbufsize);
ffa.ffa_pfi = pfi;
ffa.ffa_pfi_end = pfi + needfileports;
switch (fileport_walk(p->task, proc_fileport_fdtype, &ffa)) {
case KERN_SUCCESS:
error = 0;
pfi = ffa.ffa_pfi;
if ((numfileports = pfi - (typeof(pfi))kbuf) == 0)
break;
if (numfileports > needfileports)
panic("more fileports returned than requested");
error = copyout(kbuf, buffer, numfileports * sizeof (*pfi));
break;
case KERN_RESOURCE_SHORTAGE:
error = ENOMEM;
break;
case KERN_INVALID_TASK:
error = ESRCH;
break;
default:
error = EINVAL;
break;
}
kfree(kbuf, kbufsize);
if (error == 0)
*retval = numfileports * sizeof (*pfi);
return (error);
}
int
proc_pidbsdinfo(proc_t p, struct proc_bsdinfo * pbsd, int zombie)
{
struct tty *tp;
struct session *sessionp = NULL;
struct pgrp * pg;
kauth_cred_t my_cred;
pg = proc_pgrp(p);
sessionp = proc_session(p);
my_cred = kauth_cred_proc_ref(p);
bzero(pbsd, sizeof(struct proc_bsdinfo));
pbsd->pbi_status = p->p_stat;
pbsd->pbi_xstatus = p->p_xstat;
pbsd->pbi_pid = p->p_pid;
pbsd->pbi_ppid = p->p_ppid;
pbsd->pbi_uid = kauth_cred_getuid(my_cred);
pbsd->pbi_gid = kauth_cred_getgid(my_cred);
pbsd->pbi_ruid = kauth_cred_getruid(my_cred);
pbsd->pbi_rgid = kauth_cred_getrgid(my_cred);
pbsd->pbi_svuid = kauth_cred_getsvuid(my_cred);
pbsd->pbi_svgid = kauth_cred_getsvgid(my_cred);
kauth_cred_unref(&my_cred);
pbsd->pbi_nice = p->p_nice;
pbsd->pbi_start_tvsec = p->p_start.tv_sec;
pbsd->pbi_start_tvusec = p->p_start.tv_usec;
bcopy(&p->p_comm, &pbsd->pbi_comm[0], MAXCOMLEN);
pbsd->pbi_comm[MAXCOMLEN - 1] = '\0';
bcopy(&p->p_name, &pbsd->pbi_name[0], 2*MAXCOMLEN);
pbsd->pbi_name[(2*MAXCOMLEN) - 1] = '\0';
pbsd->pbi_flags = 0;
if ((p->p_flag & P_SYSTEM) == P_SYSTEM)
pbsd->pbi_flags |= PROC_FLAG_SYSTEM;
if ((p->p_lflag & P_LTRACED) == P_LTRACED)
pbsd->pbi_flags |= PROC_FLAG_TRACED;
if ((p->p_lflag & P_LEXIT) == P_LEXIT)
pbsd->pbi_flags |= PROC_FLAG_INEXIT;
if ((p->p_lflag & P_LPPWAIT) == P_LPPWAIT)
pbsd->pbi_flags |= PROC_FLAG_PPWAIT;
if ((p->p_flag & P_LP64) == P_LP64)
pbsd->pbi_flags |= PROC_FLAG_LP64;
if ((p->p_flag & P_CONTROLT) == P_CONTROLT)
pbsd->pbi_flags |= PROC_FLAG_CONTROLT;
if ((p->p_flag & P_THCWD) == P_THCWD)
pbsd->pbi_flags |= PROC_FLAG_THCWD;
if ((p->p_flag & P_SUGID) == P_SUGID)
pbsd->pbi_flags |= PROC_FLAG_PSUGID;
if ((p->p_flag & P_EXEC) == P_EXEC)
pbsd->pbi_flags |= PROC_FLAG_EXEC;
if (sessionp != SESSION_NULL) {
if (SESS_LEADER(p, sessionp))
pbsd->pbi_flags |= PROC_FLAG_SLEADER;
if (sessionp->s_ttyvp)
pbsd->pbi_flags |= PROC_FLAG_CTTY;
}
#if !CONFIG_EMBEDDED
if ((p->p_flag & P_DELAYIDLESLEEP) == P_DELAYIDLESLEEP)
pbsd->pbi_flags |= PROC_FLAG_DELAYIDLESLEEP;
#endif /* !CONFIG_EMBEDDED */
switch(PROC_CONTROL_STATE(p)) {
case P_PCTHROTTLE:
pbsd->pbi_flags |= PROC_FLAG_PC_THROTTLE;
break;
case P_PCSUSP:
pbsd->pbi_flags |= PROC_FLAG_PC_SUSP;
break;
case P_PCKILL:
pbsd->pbi_flags |= PROC_FLAG_PC_KILL;
break;
};
switch(PROC_ACTION_STATE(p)) {
case P_PCTHROTTLE:
pbsd->pbi_flags |= PROC_FLAG_PA_THROTTLE;
break;
case P_PCSUSP:
pbsd->pbi_flags |= PROC_FLAG_PA_SUSP;
break;
};
/* if process is a zombie skip bg state */
if ((zombie == 0) && (p->p_stat != SZOMB) && (p->task != TASK_NULL))
proc_get_darwinbgstate(p->task, &pbsd->pbi_flags);
if (zombie == 0)
pbsd->pbi_nfiles = p->p_fd->fd_nfiles;
pbsd->e_tdev = NODEV;
if (pg != PGRP_NULL) {
pbsd->pbi_pgid = p->p_pgrpid;
pbsd->pbi_pjobc = pg->pg_jobc;
if ((p->p_flag & P_CONTROLT) && (sessionp != SESSION_NULL) && (tp = SESSION_TP(sessionp))) {
pbsd->e_tdev = tp->t_dev;
pbsd->e_tpgid = sessionp->s_ttypgrpid;
}
}
if (sessionp != SESSION_NULL)
session_rele(sessionp);
if (pg != PGRP_NULL)
pg_rele(pg);
return(0);
}
int
proc_pidshortbsdinfo(proc_t p, struct proc_bsdshortinfo * pbsd_shortp, int zombie)
{
bzero(pbsd_shortp, sizeof(struct proc_bsdshortinfo));
pbsd_shortp->pbsi_pid = p->p_pid;
pbsd_shortp->pbsi_ppid = p->p_ppid;
pbsd_shortp->pbsi_pgid = p->p_pgrpid;
pbsd_shortp->pbsi_status = p->p_stat;
bcopy(&p->p_comm, &pbsd_shortp->pbsi_comm[0], MAXCOMLEN);
pbsd_shortp->pbsi_comm[MAXCOMLEN - 1] = '\0';
pbsd_shortp->pbsi_flags = 0;
if ((p->p_flag & P_SYSTEM) == P_SYSTEM)
pbsd_shortp->pbsi_flags |= PROC_FLAG_SYSTEM;
if ((p->p_lflag & P_LTRACED) == P_LTRACED)
pbsd_shortp->pbsi_flags |= PROC_FLAG_TRACED;
if ((p->p_lflag & P_LEXIT) == P_LEXIT)
pbsd_shortp->pbsi_flags |= PROC_FLAG_INEXIT;
if ((p->p_lflag & P_LPPWAIT) == P_LPPWAIT)
pbsd_shortp->pbsi_flags |= PROC_FLAG_PPWAIT;
if ((p->p_flag & P_LP64) == P_LP64)
pbsd_shortp->pbsi_flags |= PROC_FLAG_LP64;
if ((p->p_flag & P_CONTROLT) == P_CONTROLT)
pbsd_shortp->pbsi_flags |= PROC_FLAG_CONTROLT;
if ((p->p_flag & P_THCWD) == P_THCWD)
pbsd_shortp->pbsi_flags |= PROC_FLAG_THCWD;
if ((p->p_flag & P_SUGID) == P_SUGID)
pbsd_shortp->pbsi_flags |= PROC_FLAG_PSUGID;
if ((p->p_flag & P_EXEC) == P_EXEC)
pbsd_shortp->pbsi_flags |= PROC_FLAG_EXEC;
#if !CONFIG_EMBEDDED
if ((p->p_flag & P_DELAYIDLESLEEP) == P_DELAYIDLESLEEP)
pbsd_shortp->pbsi_flags |= PROC_FLAG_DELAYIDLESLEEP;
#endif /* !CONFIG_EMBEDDED */
switch(PROC_CONTROL_STATE(p)) {
case P_PCTHROTTLE:
pbsd_shortp->pbsi_flags |= PROC_FLAG_PC_THROTTLE;
break;
case P_PCSUSP:
pbsd_shortp->pbsi_flags |= PROC_FLAG_PC_SUSP;
break;
case P_PCKILL:
pbsd_shortp->pbsi_flags |= PROC_FLAG_PC_KILL;
break;
};
switch(PROC_ACTION_STATE(p)) {
case P_PCTHROTTLE:
pbsd_shortp->pbsi_flags |= PROC_FLAG_PA_THROTTLE;
break;
case P_PCSUSP:
pbsd_shortp->pbsi_flags |= PROC_FLAG_PA_SUSP;
break;
};
/* if process is a zombie skip bg state */
if ((zombie == 0) && (p->p_stat != SZOMB) && (p->task != TASK_NULL))
proc_get_darwinbgstate(p->task, &pbsd_shortp->pbsi_flags);
pbsd_shortp->pbsi_uid = p->p_uid;
pbsd_shortp->pbsi_gid = p->p_gid;
pbsd_shortp->pbsi_ruid = p->p_ruid;
pbsd_shortp->pbsi_rgid = p->p_rgid;
pbsd_shortp->pbsi_svuid = p->p_svuid;
pbsd_shortp->pbsi_svgid = p->p_svgid;
return(0);
}
int
proc_pidtaskinfo(proc_t p, struct proc_taskinfo * ptinfo)
{
task_t task;
task = p->task;
bzero(ptinfo, sizeof(struct proc_taskinfo));
fill_taskprocinfo(task, (struct proc_taskinfo_internal *)ptinfo);
return(0);
}
int
proc_pidthreadinfo(proc_t p, uint64_t arg, bool thuniqueid, struct proc_threadinfo *pthinfo)
{
int error = 0;
uint64_t threadaddr = (uint64_t)arg;
bzero(pthinfo, sizeof(struct proc_threadinfo));
error = fill_taskthreadinfo(p->task, threadaddr, thuniqueid, (struct proc_threadinfo_internal *)pthinfo, NULL, NULL);
if (error)
return(ESRCH);
else
return(0);
}
boolean_t
bsd_hasthreadname(void *uth)
{
struct uthread *ut = (struct uthread*)uth;
/* This doesn't check for the empty string; do we care? */
if (ut->pth_name) {
return TRUE;
} else {
return FALSE;
}
}
void
bsd_getthreadname(void *uth, char *buffer)
{
struct uthread *ut = (struct uthread *)uth;
if(ut->pth_name)
bcopy(ut->pth_name,buffer,MAXTHREADNAMESIZE);
}
/*
* This is known to race with regards to the contents of the thread name; concurrent
* callers may result in a garbled name.
*/
void
bsd_setthreadname(void *uth, const char *name) {
struct uthread *ut = (struct uthread *)uth;
char * name_buf = NULL;
if (!ut->pth_name) {
/* If there is no existing thread name, allocate a buffer for one. */
name_buf = kalloc(MAXTHREADNAMESIZE);
assert(name_buf);
bzero(name_buf, MAXTHREADNAMESIZE);
/* Someone could conceivably have named the thread at the same time we did. */
if (!OSCompareAndSwapPtr(NULL, name_buf, &ut->pth_name)) {
kfree(name_buf, MAXTHREADNAMESIZE);
}
} else {
kernel_debug_string_simple(TRACE_STRING_THREADNAME_PREV, ut->pth_name);
}
strncpy(ut->pth_name, name, MAXTHREADNAMESIZE - 1);
kernel_debug_string_simple(TRACE_STRING_THREADNAME, ut->pth_name);
}
void
bsd_copythreadname(void *dst_uth, void *src_uth)
{
struct uthread *dst_ut = (struct uthread *)dst_uth;
struct uthread *src_ut = (struct uthread *)src_uth;
if (src_ut->pth_name == NULL)
return;
if (dst_ut->pth_name == NULL) {
dst_ut->pth_name = (char *)kalloc(MAXTHREADNAMESIZE);
if (dst_ut->pth_name == NULL)
return;
}
bcopy(src_ut->pth_name, dst_ut->pth_name, MAXTHREADNAMESIZE);
return;
}
void
bsd_threadcdir(void * uth, void *vptr, int *vidp)
{
struct uthread * ut = (struct uthread *)uth;
vnode_t vp;
vnode_t *vpp = (vnode_t *)vptr;
vp = ut->uu_cdir;
if (vp != NULLVP) {
if (vpp != NULL) {
*vpp = vp;
if (vidp != NULL)
*vidp = vp->v_id;
}
}
}
int
proc_pidthreadpathinfo(proc_t p, uint64_t arg, struct proc_threadwithpathinfo *pinfo)
{
vnode_t vp = NULLVP;
int vid;
int error = 0;
uint64_t threadaddr = (uint64_t)arg;
int count;
bzero(pinfo, sizeof(struct proc_threadwithpathinfo));
error = fill_taskthreadinfo(p->task, threadaddr, 0, (struct proc_threadinfo_internal *)&pinfo->pt, (void *)&vp, &vid);
if (error)
return(ESRCH);
if ((vp != NULLVP) && ((vnode_getwithvid(vp, vid)) == 0)) {
error = fill_vnodeinfo(vp, &pinfo->pvip.vip_vi) ;
if (error == 0) {
count = MAXPATHLEN;
vn_getpath(vp, &pinfo->pvip.vip_path[0], &count);
pinfo->pvip.vip_path[MAXPATHLEN-1] = 0;
}
vnode_put(vp);
}
return(error);
}
int
proc_pidlistthreads(proc_t p, bool thuniqueid, user_addr_t buffer, uint32_t buffersize, int32_t *retval)
{
uint32_t count = 0;
int ret = 0;
int error = 0;
void * kbuf;
uint32_t numthreads = 0;
int num = get_numthreads(p->task) + 10;
if (num > 0) {
numthreads = (uint32_t)num;
}
count = buffersize/(sizeof(uint64_t));
if (numthreads > count) {
numthreads = count;
}
kbuf = (void *)kalloc(numthreads * sizeof(uint64_t));
if (kbuf == NULL)
return(ENOMEM);
bzero(kbuf, numthreads * sizeof(uint64_t));
ret = fill_taskthreadlist(p->task, kbuf, numthreads, thuniqueid);
error = copyout(kbuf, buffer, ret);
kfree(kbuf, numthreads * sizeof(uint64_t));
if (error == 0)
*retval = ret;
return(error);
}
int
proc_pidregioninfo(proc_t p, uint64_t arg, user_addr_t buffer, __unused uint32_t buffersize, int32_t *retval)
{
struct proc_regioninfo preginfo;
int ret, error = 0;
bzero(&preginfo, sizeof(struct proc_regioninfo));
ret = fill_procregioninfo( p->task, arg, (struct proc_regioninfo_internal *)&preginfo, (uintptr_t *)0, (uint32_t *)0);
if (ret == 0)
return(EINVAL);
error = copyout(&preginfo, buffer, sizeof(struct proc_regioninfo));
if (error == 0)
*retval = sizeof(struct proc_regioninfo);
return(error);
}
int
proc_pidregionpathinfo(proc_t p, uint64_t arg, user_addr_t buffer, __unused uint32_t buffersize, int32_t *retval)
{
struct proc_regionwithpathinfo preginfo;
int ret, error = 0;
uintptr_t vnodeaddr= 0;
uint32_t vnodeid= 0;
vnode_t vp;
int count;
bzero(&preginfo, sizeof(struct proc_regionwithpathinfo));
ret = fill_procregioninfo( p->task, arg, (struct proc_regioninfo_internal *)&preginfo.prp_prinfo, (uintptr_t *)&vnodeaddr, (uint32_t *)&vnodeid);
if (ret == 0)
return(EINVAL);
if (vnodeaddr) {
vp = (vnode_t)vnodeaddr;
if ((vnode_getwithvid(vp, vnodeid)) == 0) {
/* FILL THE VNODEINFO */
error = fill_vnodeinfo(vp, &preginfo.prp_vip.vip_vi);
count = MAXPATHLEN;
vn_getpath(vp, &preginfo.prp_vip.vip_path[0], &count);
/* Always make sure it is null terminated */
preginfo.prp_vip.vip_path[MAXPATHLEN-1] = 0;
vnode_put(vp);
}
}
error = copyout(&preginfo, buffer, sizeof(struct proc_regionwithpathinfo));
if (error == 0)
*retval = sizeof(struct proc_regionwithpathinfo);
return(error);
}
int
proc_pidregionpathinfo2(proc_t p, uint64_t arg, user_addr_t buffer, __unused uint32_t buffersize, int32_t *retval)
{
struct proc_regionwithpathinfo preginfo;
int ret, error = 0;
uintptr_t vnodeaddr= 0;
uint32_t vnodeid= 0;
vnode_t vp;
int count;
bzero(&preginfo, sizeof(struct proc_regionwithpathinfo));
ret = fill_procregioninfo_onlymappedvnodes( p->task, arg, (struct proc_regioninfo_internal *)&preginfo.prp_prinfo, (uintptr_t *)&vnodeaddr, (uint32_t *)&vnodeid);
if (ret == 0)
return(EINVAL);
if (!vnodeaddr)
return(EINVAL);
vp = (vnode_t)vnodeaddr;
if ((vnode_getwithvid(vp, vnodeid)) == 0) {
/* FILL THE VNODEINFO */
error = fill_vnodeinfo(vp, &preginfo.prp_vip.vip_vi);
count = MAXPATHLEN;
vn_getpath(vp, &preginfo.prp_vip.vip_path[0], &count);
/* Always make sure it is null terminated */
preginfo.prp_vip.vip_path[MAXPATHLEN-1] = 0;
vnode_put(vp);
} else {
return(EINVAL);
}
error = copyout(&preginfo, buffer, sizeof(struct proc_regionwithpathinfo));
if (error == 0)
*retval = sizeof(struct proc_regionwithpathinfo);
return(error);
}
int
proc_pidregionpathinfo3(proc_t p, uint64_t arg, user_addr_t buffer, __unused uint32_t buffersize, int32_t *retval)
{
struct proc_regionwithpathinfo preginfo;
int ret, error = 0;
uintptr_t vnodeaddr;
uint32_t vnodeid;
vnode_t vp;
int count;
uint64_t addr = 0;
/* Loop while looking for vnodes that match dev_t filter */
do {
bzero(&preginfo, sizeof(struct proc_regionwithpathinfo));
vnodeaddr = 0;
vnodeid = 0;
ret = fill_procregioninfo_onlymappedvnodes( p->task, addr, (struct proc_regioninfo_internal *)&preginfo.prp_prinfo, (uintptr_t *)&vnodeaddr, (uint32_t *)&vnodeid);
if (ret == 0)
return(EINVAL);
if (!vnodeaddr)
return(EINVAL);
vp = (vnode_t)vnodeaddr;
if ((vnode_getwithvid(vp, vnodeid)) == 0) {
/* Check if the vnode matches the filter, otherwise loop looking for the next memory region backed by a vnode */
struct vnode_attr va;
memset(&va, 0, sizeof(va));
VATTR_INIT(&va);
VATTR_WANTED(&va, va_fsid);
ret = vnode_getattr(vp, &va, vfs_context_current());
if (ret) {
vnode_put(vp);
return(EINVAL);
}
if (va.va_fsid == arg) {
/* FILL THE VNODEINFO */
error = fill_vnodeinfo(vp, &preginfo.prp_vip.vip_vi);
count = MAXPATHLEN;
vn_getpath(vp, &preginfo.prp_vip.vip_path[0], &count);
/* Always make sure it is null terminated */
preginfo.prp_vip.vip_path[MAXPATHLEN-1] = 0;
vnode_put(vp);
break;
}
vnode_put(vp);
} else {
return(EINVAL);
}
addr = preginfo.prp_prinfo.pri_address + preginfo.prp_prinfo.pri_size;
} while (1);
error = copyout(&preginfo, buffer, sizeof(struct proc_regionwithpathinfo));
if (error == 0)
*retval = sizeof(struct proc_regionwithpathinfo);
return(error);
}
/*
* Path is relative to current process directory; may different from current
* thread directory.
*/
int
proc_pidvnodepathinfo(proc_t p, __unused uint64_t arg, user_addr_t buffer, __unused uint32_t buffersize, int32_t *retval)
{
struct proc_vnodepathinfo pvninfo;
int error = 0;
vnode_t vncdirvp = NULLVP;
uint32_t vncdirid=0;
vnode_t vnrdirvp = NULLVP;
uint32_t vnrdirid=0;
int count;
bzero(&pvninfo, sizeof(struct proc_vnodepathinfo));
proc_fdlock(p);
if (p->p_fd->fd_cdir) {
vncdirvp = p->p_fd->fd_cdir;
vncdirid = p->p_fd->fd_cdir->v_id;
}
if (p->p_fd->fd_rdir) {
vnrdirvp = p->p_fd->fd_rdir;
vnrdirid = p->p_fd->fd_rdir->v_id;
}
proc_fdunlock(p);
if (vncdirvp != NULLVP) {
if ((error = vnode_getwithvid(vncdirvp, vncdirid)) == 0) {
/* FILL THE VNODEINFO */
error = fill_vnodeinfo(vncdirvp, &pvninfo.pvi_cdir.vip_vi);
if ( error == 0) {
count = MAXPATHLEN;
vn_getpath(vncdirvp, &pvninfo.pvi_cdir.vip_path[0], &count);
pvninfo.pvi_cdir.vip_path[MAXPATHLEN-1] = 0;
}
vnode_put(vncdirvp);
} else {
goto out;
}
}
if ((error == 0) && (vnrdirvp != NULLVP)) {
if ((error = vnode_getwithvid(vnrdirvp, vnrdirid)) == 0) {
/* FILL THE VNODEINFO */
error = fill_vnodeinfo(vnrdirvp, &pvninfo.pvi_rdir.vip_vi);
if ( error == 0) {
count = MAXPATHLEN;
vn_getpath(vnrdirvp, &pvninfo.pvi_rdir.vip_path[0], &count);
pvninfo.pvi_rdir.vip_path[MAXPATHLEN-1] = 0;
}
vnode_put(vnrdirvp);
} else {
goto out;
}
}
if (error == 0) {
error = copyout(&pvninfo, buffer, sizeof(struct proc_vnodepathinfo));
if (error == 0)
*retval = sizeof(struct proc_vnodepathinfo);
}
out:
return(error);
}
int
proc_pidpathinfo(proc_t p, __unused uint64_t arg, user_addr_t buffer, uint32_t buffersize, __unused int32_t *retval)
{
int error;
vnode_t tvp;
int len = buffersize;
char * buf;
tvp = p->p_textvp;
if (tvp == NULLVP)
return(ESRCH);
buf = (char *)kalloc(buffersize);
if (buf == NULL)
return(ENOMEM);
bzero(buf, buffersize);
error = proc_pidpathinfo_internal(p, arg, buf, buffersize, retval);
if (error == 0) {
error = copyout(buf, buffer, len);
}
kfree(buf, buffersize);
return(error);
}
int
proc_pidpathinfo_internal(proc_t p, __unused uint64_t arg, char *buf, uint32_t buffersize, __unused int32_t *retval)
{
int vid, error;
vnode_t tvp;
vnode_t nvp = NULLVP;
int len = buffersize;
tvp = p->p_textvp;
if (tvp == NULLVP)
return(ESRCH);
vid = vnode_vid(tvp);
error = vnode_getwithvid(tvp, vid);
if (error == 0) {
error = vn_getpath_fsenter(tvp, buf, &len);
vnode_put(tvp);
if (error == 0) {
error = vnode_lookup(buf, 0, &nvp, vfs_context_current());
if ((error == 0) && ( nvp != NULLVP))
vnode_put(nvp);
}
}
return(error);
}
int
proc_pidworkqueueinfo(proc_t p, struct proc_workqueueinfo *pwqinfo)
{
int error = 0;
bzero(pwqinfo, sizeof(struct proc_workqueueinfo));
error = fill_procworkqueue(p, pwqinfo);
if (error)
return(ESRCH);
else
return(0);
}
void
proc_piduniqidentifierinfo(proc_t p, struct proc_uniqidentifierinfo *p_uniqidinfo)
{
p_uniqidinfo->p_uniqueid = proc_uniqueid(p);
proc_getexecutableuuid(p, (unsigned char *)&p_uniqidinfo->p_uuid, sizeof(p_uniqidinfo->p_uuid));
p_uniqidinfo->p_puniqueid = proc_puniqueid(p);
p_uniqidinfo->p_reserve2 = 0;
p_uniqidinfo->p_reserve3 = 0;
p_uniqidinfo->p_reserve4 = 0;
}
static int
proc_piduuidinfo(pid_t pid, uuid_t uuid_buf, uint32_t buffersize)
{
struct proc * p = PROC_NULL;
int zombref = 0;
if (buffersize < sizeof(uuid_t))
return EINVAL;
if ((p = proc_find(pid)) == PROC_NULL) {
p = proc_find_zombref(pid);
zombref = 1;
}
if (p == PROC_NULL) {
return ESRCH;
}
proc_getexecutableuuid(p, (unsigned char *)uuid_buf, buffersize);
if (zombref)
proc_drop_zombref(p);
else
proc_rele(p);
return 0;
}
/*
* Function to get the uuid and pid of the originator of the voucher.
*/
int
proc_pidoriginatorpid_uuid(uuid_t uuid, uint32_t buffersize, pid_t *pid)
{
pid_t originator_pid;
kern_return_t kr;
int error;
/*
* Get the current voucher origin pid. The pid returned here
* might not be valid or may have been recycled.
*/
kr = thread_get_current_voucher_origin_pid(&originator_pid);
/* If errors, convert errors to appropriate format */
if (kr) {
if (kr == KERN_INVALID_TASK)
error = ESRCH;
else if (kr == KERN_INVALID_VALUE)
error = ENOATTR;
else
error = EINVAL;
return error;
}
*pid = originator_pid;
error = proc_piduuidinfo(originator_pid, uuid, buffersize);
return error;
}
/*
* Function to get the uuid of the originator of the voucher.
*/
int
proc_pidoriginatoruuid(uuid_t uuid, uint32_t buffersize)
{
pid_t originator_pid;
return (proc_pidoriginatorpid_uuid(uuid, buffersize, &originator_pid));
}
/***************************** proc_pidoriginatorinfo ***************************/
int
proc_pidoriginatorinfo(int pid, int flavor, user_addr_t buffer, uint32_t buffersize, int32_t * retval)
{
int error = ENOTSUP;
uint32_t size;
switch (flavor) {
case PROC_PIDORIGINATOR_UUID:
size = PROC_PIDORIGINATOR_UUID_SIZE;
break;
case PROC_PIDORIGINATOR_BGSTATE:
size = PROC_PIDORIGINATOR_BGSTATE_SIZE;
break;
case PROC_PIDORIGINATOR_PID_UUID:
size = PROC_PIDORIGINATOR_PID_UUID_SIZE;
break;
default:
return(EINVAL);
}
if (buffersize < size)
return(ENOMEM);
if (pid != 0 && pid != proc_selfpid())
return (EINVAL);
switch (flavor) {
case PROC_PIDORIGINATOR_UUID: {
uuid_t uuid = {};
error = proc_pidoriginatoruuid(uuid, sizeof(uuid));
if (error != 0)
goto out;
error = copyout(uuid, buffer, size);
if (error == 0)
*retval = size;
}
break;
case PROC_PIDORIGINATOR_PID_UUID: {
struct proc_originatorinfo originator_info;
bzero(&originator_info, sizeof(originator_info));
error = proc_pidoriginatorpid_uuid(originator_info.originator_uuid,
sizeof(uuid_t), &originator_info.originator_pid);
if (error != 0)
goto out;
error = copyout(&originator_info, buffer, size);
if (error == 0)
*retval = size;
}
break;
case PROC_PIDORIGINATOR_BGSTATE: {
uint32_t is_backgrounded = 0;
error = proc_get_originatorbgstate(&is_backgrounded);
if (error)
goto out;
error = copyout(&is_backgrounded, buffer, size);
if (error == 0)
*retval = size;
}
break;
default:
error = ENOTSUP;
}
out:
return error;
}
/***************************** proc_listcoalitions ***************************/
int proc_listcoalitions(int flavor, int type, user_addr_t buffer,
uint32_t buffersize, int32_t *retval)
{
#if CONFIG_COALITIONS
int error = ENOTSUP;
int coal_type;
uint32_t elem_size;
void *coalinfo = NULL;
uint32_t k_buffersize = 0, copyout_sz = 0;
int ncoals = 0, ncoals_ = 0;
/* struct procinfo_coalinfo; */
switch (flavor) {
case LISTCOALITIONS_ALL_COALS:
elem_size = LISTCOALITIONS_ALL_COALS_SIZE;
coal_type = -1;
break;
case LISTCOALITIONS_SINGLE_TYPE:
elem_size = LISTCOALITIONS_SINGLE_TYPE_SIZE;
coal_type = type;
break;
default:
return EINVAL;
}
/* find the total number of coalitions */
ncoals = coalitions_get_list(coal_type, NULL, 0);
if (ncoals == 0 || buffer == 0 || buffersize == 0) {
/*
* user just wants buffer size
* or there are no coalitions
*/
error = 0;
*retval = (int)(ncoals * elem_size);
goto out;
}
k_buffersize = ncoals * elem_size;
coalinfo = kalloc((vm_size_t)k_buffersize);
if (!coalinfo) {
error = ENOMEM;
goto out;
}
bzero(coalinfo, k_buffersize);
switch (flavor) {
case LISTCOALITIONS_ALL_COALS:
case LISTCOALITIONS_SINGLE_TYPE:
ncoals_ = coalitions_get_list(coal_type, coalinfo, ncoals);
break;
default:
panic("memory corruption?!");
}
if (ncoals_ == 0) {
/* all the coalitions disappeared... weird but valid */
error = 0;
*retval = 0;
goto out;
}
/*
* Some coalitions may have disappeared between our initial check,
* and the the actual list acquisition.
* Only copy out what we really need.
*/
copyout_sz = k_buffersize;
if (ncoals_ < ncoals)
copyout_sz = ncoals_ * elem_size;
/*
* copy the list up to user space
* (we're guaranteed to have a non-null pointer/size here)
*/
error = copyout(coalinfo, buffer,
copyout_sz < buffersize ? copyout_sz : buffersize);
if (error == 0)
*retval = (int)copyout_sz;
out:
if (coalinfo)
kfree(coalinfo, k_buffersize);
return error;
#else
/* no coalition support */
(void)flavor;
(void)type;
(void)buffer;
(void)buffersize;
(void)retval;
return ENOTSUP;
#endif
}
/*************************** proc_can_use_forgeound_hw **************************/
int proc_can_use_foreground_hw(int pid, user_addr_t u_reason, uint32_t reasonsize, int32_t *retval)
{
proc_t p = PROC_NULL;
int error = 0;
uint32_t reason = PROC_FGHW_ERROR;
uint32_t isBG = 0;
task_t task = TASK_NULL;
#if CONFIG_COALITIONS
coalition_t coal = COALITION_NULL;
#endif
*retval = 0;
if (pid <= 0) {
error = EINVAL;
reason = PROC_FGHW_ERROR;
goto out;
}
p = proc_find(pid);
if (p == PROC_NULL) {
error = ESRCH;
reason = PROC_FGHW_ERROR;
goto out;
}
#if CONFIG_COALITIONS
if (p != current_proc() &&
!kauth_cred_issuser(kauth_cred_get())) {
error = EPERM;
reason = PROC_FGHW_ERROR;
goto out;
}
task = p->task;
task_reference(task);
if (coalition_is_leader(task, COALITION_TYPE_JETSAM, &coal) == FALSE) {
/* current task is not a coalition leader: find the leader */
task_deallocate(task);
task = coalition_get_leader(coal);
}
if (task != TASK_NULL) {
/*
* If task is non-null, then it is the coalition leader of the
* current process' coalition. This could be the same task as
* the current_task, and that's OK.
*/
uint32_t flags = 0;
int role;
proc_get_darwinbgstate(task, &flags);
if ((flags & PROC_FLAG_APPLICATION) != PROC_FLAG_APPLICATION) {
/*
* Coalition leader is not an application, continue
* searching for other ways this task could gain
* access to HW
*/
reason = PROC_FGHW_DAEMON_LEADER;
goto no_leader;
}
if (proc_get_effective_task_policy(task, TASK_POLICY_DARWIN_BG)) {
/*
* If the leader of the current process' coalition has
* been marked as DARWIN_BG, then it definitely should
* not be using foreground hardware resources.
*/
reason = PROC_FGHW_LEADER_BACKGROUND;
goto out;
}
role = proc_get_effective_task_policy(task, TASK_POLICY_ROLE);
switch (role) {
case TASK_FOREGROUND_APPLICATION: /* DARWIN_ROLE_UI_FOCAL */
case TASK_BACKGROUND_APPLICATION: /* DARWIN_ROLE_UI */
/*
* The leader of this coalition is a focal, UI app:
* access granted
* TODO: should extensions/plugins be allowed to use
* this hardware?
*/
*retval = 1;
reason = PROC_FGHW_OK;
goto out;
case TASK_DEFAULT_APPLICATION: /* DARWIN_ROLE_UI_NON_FOCAL */
case TASK_NONUI_APPLICATION: /* DARWIN_ROLE_NON_UI */
case TASK_THROTTLE_APPLICATION:
case TASK_UNSPECIFIED:
default:
/* non-focal, non-ui apps don't get access */
reason = PROC_FGHW_LEADER_NONUI;
goto out;
}
}
no_leader:
if (task != TASK_NULL) {
task_deallocate(task);
task = TASK_NULL;
}
#endif /* CONFIG_COALITIONS */
/*
* There is no reasonable semantic to investigate the currently
* adopted voucher of an arbitrary thread in a non-current process.
* We return '0'
*/
if (p != current_proc()) {
error = EINVAL;
goto out;
}
/*
* In the absence of coalitions, fall back to a voucher-based lookup
* where a daemon can used foreground HW if it's operating on behalf
* of a foreground application.
* NOTE: this is equivalent to a call to
* proc_pidoriginatorinfo(PROC_PIDORIGINATOR_BGSTATE, &isBG, sizeof(isBG))
*/
isBG = 1;
error = proc_get_originatorbgstate(&isBG);
switch (error) {
case 0:
break;
case ESRCH:
reason = PROC_FGHW_NO_ORIGINATOR;
error = 0;
goto out;
case ENOATTR:
reason = PROC_FGHW_NO_VOUCHER_ATTR;
error = 0;
goto out;
case EINVAL:
reason = PROC_FGHW_DAEMON_NO_VOUCHER;
error = 0;
goto out;
default:
/* some other error occurred: report that to the caller */
reason = PROC_FGHW_VOUCHER_ERROR;
goto out;
}
if (isBG) {
reason = PROC_FGHW_ORIGINATOR_BACKGROUND;
error = 0;
} else {
/*
* The process itself is either a foreground app, or has
* adopted a voucher originating from an app that's still in
* the foreground
*/
reason = PROC_FGHW_DAEMON_OK;
*retval = 1;
}
out:
if (task != TASK_NULL)
task_deallocate(task);
if (p != PROC_NULL)
proc_rele(p);
if (reasonsize >= sizeof(reason) && u_reason != (user_addr_t)0)
(void)copyout(&reason, u_reason, sizeof(reason));
return error;
}
/********************************** proc_pidinfo ********************************/
int
proc_pidinfo(int pid, int flavor, uint64_t arg, user_addr_t buffer, uint32_t buffersize, int32_t * retval)
{
struct proc * p = PROC_NULL;
int error = ENOTSUP;
int gotref = 0;
int findzomb = 0;
int shortversion = 0;
uint32_t size;
int zombie = 0;
bool thuniqueid = false;
int uniqidversion = 0;
boolean_t check_same_user;
switch (flavor) {
case PROC_PIDLISTFDS:
size = PROC_PIDLISTFD_SIZE;
if (buffer == USER_ADDR_NULL)
size = 0;
break;
case PROC_PIDTBSDINFO:
size = PROC_PIDTBSDINFO_SIZE;
break;
case PROC_PIDTASKINFO:
size = PROC_PIDTASKINFO_SIZE;
break;
case PROC_PIDTASKALLINFO:
size = PROC_PIDTASKALLINFO_SIZE;
break;
case PROC_PIDTHREADINFO:
size = PROC_PIDTHREADINFO_SIZE;
break;
case PROC_PIDLISTTHREADIDS:
size = PROC_PIDLISTTHREADIDS_SIZE;
break;
case PROC_PIDLISTTHREADS:
size = PROC_PIDLISTTHREADS_SIZE;
break;
case PROC_PIDREGIONINFO:
size = PROC_PIDREGIONINFO_SIZE;
break;
case PROC_PIDREGIONPATHINFO:
size = PROC_PIDREGIONPATHINFO_SIZE;
break;
case PROC_PIDVNODEPATHINFO:
size = PROC_PIDVNODEPATHINFO_SIZE;
break;
case PROC_PIDTHREADPATHINFO:
size = PROC_PIDTHREADPATHINFO_SIZE;
break;
case PROC_PIDPATHINFO:
size = MAXPATHLEN;
break;
case PROC_PIDWORKQUEUEINFO:
/* kernel does not have workq info */
if (pid == 0)
return(EINVAL);
else
size = PROC_PIDWORKQUEUEINFO_SIZE;
break;
case PROC_PIDT_SHORTBSDINFO:
size = PROC_PIDT_SHORTBSDINFO_SIZE;
break;
case PROC_PIDLISTFILEPORTS:
size = PROC_PIDLISTFILEPORTS_SIZE;
if (buffer == (user_addr_t)0)
size = 0;
break;
case PROC_PIDTHREADID64INFO:
size = PROC_PIDTHREADID64INFO_SIZE;
break;
case PROC_PIDUNIQIDENTIFIERINFO:
size = PROC_PIDUNIQIDENTIFIERINFO_SIZE;
break;
case PROC_PIDT_BSDINFOWITHUNIQID:
size = PROC_PIDT_BSDINFOWITHUNIQID_SIZE;
break;
case PROC_PIDARCHINFO:
size = PROC_PIDARCHINFO_SIZE;
break;
case PROC_PIDCOALITIONINFO:
size = PROC_PIDCOALITIONINFO_SIZE;
break;
case PROC_PIDNOTEEXIT:
/*
* Set findzomb explicitly because arg passed
* in is used as note exit status bits.
*/
size = PROC_PIDNOTEEXIT_SIZE;
findzomb = 1;
break;
case PROC_PIDEXITREASONINFO:
size = PROC_PIDEXITREASONINFO_SIZE;
findzomb = 1;
break;
case PROC_PIDEXITREASONBASICINFO:
size = PROC_PIDEXITREASONBASICINFOSIZE;
findzomb = 1;
break;
case PROC_PIDREGIONPATHINFO2:
size = PROC_PIDREGIONPATHINFO2_SIZE;
break;
case PROC_PIDREGIONPATHINFO3:
size = PROC_PIDREGIONPATHINFO3_SIZE;
break;
case PROC_PIDLISTUPTRS:
size = PROC_PIDLISTUPTRS_SIZE;
if (buffer == USER_ADDR_NULL) {
size = 0;
}
break;
case PROC_PIDLISTDYNKQUEUES:
size = PROC_PIDLISTDYNKQUEUES_SIZE;
if (buffer == USER_ADDR_NULL) {
size = 0;
}
break;
case PROC_PIDVMRTFAULTINFO:
size = sizeof(vm_rtfault_record_t);
if (buffer == USER_ADDR_NULL) {
size = 0;
}
break;
default:
return(EINVAL);
}
if (buffersize < size)
return(ENOMEM);
if ((flavor == PROC_PIDPATHINFO) && (buffersize > PROC_PIDPATHINFO_MAXSIZE)) {
return(EOVERFLOW);
}
/* Check if we need to look for zombies */
if ((flavor == PROC_PIDTBSDINFO) || (flavor == PROC_PIDT_SHORTBSDINFO) || (flavor == PROC_PIDT_BSDINFOWITHUNIQID)
|| (flavor == PROC_PIDUNIQIDENTIFIERINFO)) {
if (arg)
findzomb = 1;
}
if ((p = proc_find(pid)) == PROC_NULL) {
if (findzomb)
p = proc_find_zombref(pid);
if (p == PROC_NULL) {
error = ESRCH;
goto out;
}
zombie = 1;
} else {
gotref = 1;
}
/* Certain operations don't require privileges */
switch (flavor) {
case PROC_PIDT_SHORTBSDINFO:
case PROC_PIDUNIQIDENTIFIERINFO:
case PROC_PIDPATHINFO:
case PROC_PIDCOALITIONINFO:
check_same_user = NO_CHECK_SAME_USER;
break;
default:
check_same_user = CHECK_SAME_USER;
break;
}
/* Do we have permission to look into this? */
if ((error = proc_security_policy(p, PROC_INFO_CALL_PIDINFO, flavor, check_same_user)))
goto out;
switch (flavor) {
case PROC_PIDLISTFDS: {
error = proc_pidfdlist(p, buffer, buffersize, retval);
}
break;
case PROC_PIDUNIQIDENTIFIERINFO: {
struct proc_uniqidentifierinfo p_uniqidinfo;
bzero(&p_uniqidinfo, sizeof(p_uniqidinfo));
proc_piduniqidentifierinfo(p, &p_uniqidinfo);
error = copyout(&p_uniqidinfo, buffer, sizeof(struct proc_uniqidentifierinfo));
if (error == 0)
*retval = sizeof(struct proc_uniqidentifierinfo);
}
break;
case PROC_PIDT_SHORTBSDINFO:
shortversion = 1;
case PROC_PIDT_BSDINFOWITHUNIQID:
case PROC_PIDTBSDINFO: {
struct proc_bsdinfo pbsd;
struct proc_bsdshortinfo pbsd_short;
struct proc_bsdinfowithuniqid pbsd_uniqid;
if (flavor == PROC_PIDT_BSDINFOWITHUNIQID)
uniqidversion = 1;
if (shortversion != 0) {
error = proc_pidshortbsdinfo(p, &pbsd_short, zombie);
} else {
error = proc_pidbsdinfo(p, &pbsd, zombie);
if (uniqidversion != 0) {
bzero(&pbsd_uniqid, sizeof(pbsd_uniqid));
proc_piduniqidentifierinfo(p, &pbsd_uniqid.p_uniqidentifier);
pbsd_uniqid.pbsd = pbsd;
}
}
if (error == 0) {
if (shortversion != 0) {
error = copyout(&pbsd_short, buffer, sizeof(struct proc_bsdshortinfo));
if (error == 0)
*retval = sizeof(struct proc_bsdshortinfo);
} else if (uniqidversion != 0) {
error = copyout(&pbsd_uniqid, buffer, sizeof(struct proc_bsdinfowithuniqid));
if (error == 0)
*retval = sizeof(struct proc_bsdinfowithuniqid);
} else {
error = copyout(&pbsd, buffer, sizeof(struct proc_bsdinfo));
if (error == 0)
*retval = sizeof(struct proc_bsdinfo);
}
}
}
break;
case PROC_PIDTASKINFO: {
struct proc_taskinfo ptinfo;
error = proc_pidtaskinfo(p, &ptinfo);
if (error == 0) {
error = copyout(&ptinfo, buffer, sizeof(struct proc_taskinfo));
if (error == 0)
*retval = sizeof(struct proc_taskinfo);
}
}
break;
case PROC_PIDTASKALLINFO: {
struct proc_taskallinfo pall;
bzero(&pall, sizeof(pall));
error = proc_pidbsdinfo(p, &pall.pbsd, 0);
error = proc_pidtaskinfo(p, &pall.ptinfo);
if (error == 0) {
error = copyout(&pall, buffer, sizeof(struct proc_taskallinfo));
if (error == 0)
*retval = sizeof(struct proc_taskallinfo);
}
}
break;
case PROC_PIDTHREADID64INFO:
thuniqueid = true;
case PROC_PIDTHREADINFO:{
struct proc_threadinfo pthinfo;
error = proc_pidthreadinfo(p, arg, thuniqueid, &pthinfo);
if (error == 0) {
error = copyout(&pthinfo, buffer, sizeof(struct proc_threadinfo));
if (error == 0)
*retval = sizeof(struct proc_threadinfo);
}
}
break;
case PROC_PIDLISTTHREADIDS:
thuniqueid = true;
case PROC_PIDLISTTHREADS:{
error = proc_pidlistthreads(p, thuniqueid, buffer, buffersize, retval);
}
break;
case PROC_PIDREGIONINFO:{
error = proc_pidregioninfo(p, arg, buffer, buffersize, retval);
}
break;
case PROC_PIDREGIONPATHINFO:{
error = proc_pidregionpathinfo(p, arg, buffer, buffersize, retval);
}
break;
case PROC_PIDREGIONPATHINFO2:{
error = proc_pidregionpathinfo2(p, arg, buffer, buffersize, retval);
}
break;
case PROC_PIDREGIONPATHINFO3:{
error = proc_pidregionpathinfo3(p, arg, buffer, buffersize, retval);
}
break;
case PROC_PIDVNODEPATHINFO:{
error = proc_pidvnodepathinfo(p, arg, buffer, buffersize, retval);
}
break;
case PROC_PIDTHREADPATHINFO:{
struct proc_threadwithpathinfo pinfo;
error = proc_pidthreadpathinfo(p, arg, &pinfo);
if (error == 0) {
error = copyout((caddr_t)&pinfo, buffer, sizeof(struct proc_threadwithpathinfo));
if (error == 0)
*retval = sizeof(struct proc_threadwithpathinfo);
}
}
break;
case PROC_PIDPATHINFO: {
error = proc_pidpathinfo(p, arg, buffer, buffersize, retval);
}
break;
case PROC_PIDWORKQUEUEINFO:{
struct proc_workqueueinfo pwqinfo;
error = proc_pidworkqueueinfo(p, &pwqinfo);
if (error == 0) {
error = copyout(&pwqinfo, buffer, sizeof(struct proc_workqueueinfo));
if (error == 0)
*retval = sizeof(struct proc_workqueueinfo);
}
}
break;
case PROC_PIDLISTFILEPORTS: {
error = proc_pidfileportlist(p, buffer, buffersize, retval);
}
break;
case PROC_PIDARCHINFO: {
struct proc_archinfo pai;
bzero(&pai, sizeof(pai));
proc_archinfo(p, &pai);
error = copyout(&pai, buffer, sizeof(struct proc_archinfo));
if (error == 0) {
*retval = sizeof(struct proc_archinfo);
}
}
break;
case PROC_PIDCOALITIONINFO: {
struct proc_pidcoalitioninfo pci;
proc_pidcoalitioninfo(p, &pci);
error = copyout(&pci, buffer, sizeof(struct proc_pidcoalitioninfo));
if (error == 0) {
*retval = sizeof(struct proc_pidcoalitioninfo);
}
}
break;
case PROC_PIDNOTEEXIT: {
uint32_t data;
error = proc_pidnoteexit(p, arg, &data);
if (error == 0) {
error = copyout(&data, buffer, sizeof(data));
if (error == 0) {
*retval = sizeof(data);
}
}
}
break;
case PROC_PIDEXITREASONINFO: {
struct proc_exitreasoninfo eri;
error = copyin(buffer, &eri, sizeof(eri));
if (error != 0) {
break;
}
error = proc_pidexitreasoninfo(p, &eri, NULL);
if (error == 0) {
error = copyout(&eri, buffer, sizeof(eri));
if (error == 0) {
*retval = sizeof(eri);
}
}
}
break;
case PROC_PIDEXITREASONBASICINFO: {
struct proc_exitreasonbasicinfo beri;
bzero(&beri, sizeof(struct proc_exitreasonbasicinfo));
error = proc_pidexitreasoninfo(p, NULL, &beri);
if (error == 0) {
error = copyout(&beri, buffer, sizeof(beri));
if (error == 0) {
*retval = sizeof(beri);
}
}
}
break;
case PROC_PIDLISTUPTRS:
error = proc_pidlistuptrs(p, buffer, buffersize, retval);
break;
case PROC_PIDLISTDYNKQUEUES:
error = kevent_copyout_proc_dynkqids(p, buffer, buffersize, retval);
break;
case PROC_PIDVMRTFAULTINFO: {
/* This interface can only be employed on the current
* process. We will eventually enforce an entitlement.
*/
*retval = 0;
if (p != current_proc()) {
error = EINVAL;
break;
}
size_t kbufsz = MIN(buffersize, vmrtfaultinfo_bufsz());
void *vmrtfbuf = kalloc(kbufsz);
if (vmrtfbuf == NULL) {
error = ENOMEM;
break;
}
bzero(vmrtfbuf, kbufsz);
uint64_t effpid = get_current_unique_pid();
/* The VM may choose to provide more comprehensive records
* for root-privileged users on internal configurations.
*/
boolean_t isroot = (suser(kauth_cred_get(), (u_short *)0) == 0);
int vmf_residue = vmrtf_extract(effpid, isroot, kbufsz, vmrtfbuf, retval);
int vmfsz = *retval * sizeof(vm_rtfault_record_t);
error = 0;
if (vmfsz) {
error = copyout(vmrtfbuf, buffer, vmfsz);
}
if (error == 0) {
if (vmf_residue) {
error = ENOMEM;
}
}
kfree(vmrtfbuf, kbufsz);
}
break;
default:
error = ENOTSUP;
break;
}
out:
if (gotref)
proc_rele(p);
else if (zombie)
proc_drop_zombref(p);
return(error);
}
int
pid_vnodeinfo(vnode_t vp, uint32_t vid, struct fileproc * fp, proc_t proc, int fd, user_addr_t buffer, __unused uint32_t buffersize, int32_t * retval)
{
struct vnode_fdinfo vfi;
int error= 0;
if ((error = vnode_getwithvid(vp, vid)) != 0) {
return(error);
}
bzero(&vfi, sizeof(struct vnode_fdinfo));
fill_fileinfo(fp, proc, fd, &vfi.pfi);
error = fill_vnodeinfo(vp, &vfi.pvi);
vnode_put(vp);
if (error == 0) {
error = copyout((caddr_t)&vfi, buffer, sizeof(struct vnode_fdinfo));
if (error == 0)
*retval = sizeof(struct vnode_fdinfo);
}
return(error);
}
int
pid_vnodeinfopath(vnode_t vp, uint32_t vid, struct fileproc * fp, proc_t proc, int fd, user_addr_t buffer, __unused uint32_t buffersize, int32_t * retval)
{
struct vnode_fdinfowithpath vfip;
int count, error= 0;
if ((error = vnode_getwithvid(vp, vid)) != 0) {
return(error);
}
bzero(&vfip, sizeof(struct vnode_fdinfowithpath));
fill_fileinfo(fp, proc, fd, &vfip.pfi);
error = fill_vnodeinfo(vp, &vfip.pvip.vip_vi) ;
if (error == 0) {
count = MAXPATHLEN;
vn_getpath(vp, &vfip.pvip.vip_path[0], &count);
vfip.pvip.vip_path[MAXPATHLEN-1] = 0;
vnode_put(vp);
error = copyout((caddr_t)&vfip, buffer, sizeof(struct vnode_fdinfowithpath));
if (error == 0)
*retval = sizeof(struct vnode_fdinfowithpath);
} else
vnode_put(vp);
return(error);
}
void
fill_fileinfo(struct fileproc * fp, proc_t proc, int fd, struct proc_fileinfo * fproc)
{
fproc->fi_openflags = fp->f_fglob->fg_flag;
fproc->fi_status = 0;
fproc->fi_offset = fp->f_fglob->fg_offset;
fproc->fi_type = FILEGLOB_DTYPE(fp->f_fglob);
if (fp->f_fglob->fg_count > 1)
fproc->fi_status |= PROC_FP_SHARED;
if (proc != PROC_NULL) {
if ((FDFLAGS_GET(proc, fd) & UF_EXCLOSE) != 0)
fproc->fi_status |= PROC_FP_CLEXEC;
if ((FDFLAGS_GET(proc, fd) & UF_FORKCLOSE) != 0)
fproc->fi_status |= PROC_FP_CLFORK;
}
if (FILEPROC_TYPE(fp) == FTYPE_GUARDED) {
fproc->fi_status |= PROC_FP_GUARDED;
fproc->fi_guardflags = 0;
if (fp_isguarded(fp, GUARD_CLOSE))
fproc->fi_guardflags |= PROC_FI_GUARD_CLOSE;
if (fp_isguarded(fp, GUARD_DUP))
fproc->fi_guardflags |= PROC_FI_GUARD_DUP;
if (fp_isguarded(fp, GUARD_SOCKET_IPC))
fproc->fi_guardflags |= PROC_FI_GUARD_SOCKET_IPC;
if (fp_isguarded(fp, GUARD_FILEPORT))
fproc->fi_guardflags |= PROC_FI_GUARD_FILEPORT;
}
}
int
fill_vnodeinfo(vnode_t vp, struct vnode_info *vinfo)
{
vfs_context_t context;
struct stat64 sb;
int error = 0;
bzero(&sb, sizeof(struct stat64));
context = vfs_context_create((vfs_context_t)0);
error = vn_stat(vp, &sb, NULL, 1, context);
(void)vfs_context_rele(context);
munge_vinfo_stat(&sb, &vinfo->vi_stat);
if (error != 0)
goto out;
if (vp->v_mount != dead_mountp) {
vinfo->vi_fsid = vp->v_mount->mnt_vfsstat.f_fsid;
} else {
vinfo->vi_fsid.val[0] = 0;
vinfo->vi_fsid.val[1] = 0;
}
vinfo->vi_type = vp->v_type;
out:
return(error);
}
int
pid_socketinfo(socket_t so, struct fileproc *fp, proc_t proc, int fd, user_addr_t buffer, __unused uint32_t buffersize, int32_t * retval)
{
#if SOCKETS
struct socket_fdinfo s;
int error = 0;
bzero(&s, sizeof(struct socket_fdinfo));
fill_fileinfo(fp, proc, fd, &s.pfi);
if ((error = fill_socketinfo(so, &s.psi)) == 0) {
if ((error = copyout(&s, buffer, sizeof(struct socket_fdinfo))) == 0)
*retval = sizeof(struct socket_fdinfo);
}
return (error);
#else
#pragma unused(so, fp, proc, fd, buffer)
*retval = 0;
return (ENOTSUP);
#endif
}
int
pid_pseminfo(struct psemnode *psem, struct fileproc *fp, proc_t proc, int fd, user_addr_t buffer, __unused uint32_t buffersize, int32_t * retval)
{
struct psem_fdinfo pseminfo;
int error = 0;
bzero(&pseminfo, sizeof(struct psem_fdinfo));
fill_fileinfo(fp, proc, fd, &pseminfo.pfi);
if ((error = fill_pseminfo(psem, &pseminfo.pseminfo)) == 0) {
if ((error = copyout(&pseminfo, buffer, sizeof(struct psem_fdinfo))) == 0)
*retval = sizeof(struct psem_fdinfo);
}
return(error);
}
int
pid_pshminfo(struct pshmnode *pshm, struct fileproc *fp, proc_t proc, int fd, user_addr_t buffer, __unused uint32_t buffersize, int32_t * retval)
{
struct pshm_fdinfo pshminfo;
int error = 0;
bzero(&pshminfo, sizeof(struct pshm_fdinfo));
fill_fileinfo(fp, proc, fd, &pshminfo.pfi);
if ((error = fill_pshminfo(pshm, &pshminfo.pshminfo)) == 0) {
if ((error = copyout(&pshminfo, buffer, sizeof(struct pshm_fdinfo))) == 0)
*retval = sizeof(struct pshm_fdinfo);
}
return(error);
}
int
pid_pipeinfo(struct pipe * p, struct fileproc *fp, proc_t proc, int fd, user_addr_t buffer, __unused uint32_t buffersize, int32_t * retval)
{
struct pipe_fdinfo pipeinfo;
int error = 0;
bzero(&pipeinfo, sizeof(struct pipe_fdinfo));
fill_fileinfo(fp, proc, fd, &pipeinfo.pfi);
if ((error = fill_pipeinfo(p, &pipeinfo.pipeinfo)) == 0) {
if ((error = copyout(&pipeinfo, buffer, sizeof(struct pipe_fdinfo))) == 0)
*retval = sizeof(struct pipe_fdinfo);
}
return(error);
}
int
pid_kqueueinfo(struct kqueue * kq, struct fileproc *fp, proc_t proc, int fd, user_addr_t buffer, __unused uint32_t buffersize, int32_t * retval)
{
struct kqueue_fdinfo kqinfo;
int error = 0;
bzero(&kqinfo, sizeof(struct kqueue_fdinfo));
/* not all kq's are associated with a file (e.g. workqkq) */
if (fp) {
assert(fd >= 0);
fill_fileinfo(fp, proc, fd, &kqinfo.pfi);
}
if ((error = fill_kqueueinfo(kq, &kqinfo.kqueueinfo)) == 0) {
if ((error = copyout(&kqinfo, buffer, sizeof(struct kqueue_fdinfo))) == 0)
*retval = sizeof(struct kqueue_fdinfo);
}
return(error);
}
int
pid_atalkinfo(__unused struct atalk * at, __unused struct fileproc *fp, __unused proc_t proc, __unused int fd, __unused user_addr_t buffer, __unused uint32_t buffersize, __unused int32_t * retval)
{
return ENOTSUP;
}
/************************** proc_pidfdinfo routine ***************************/
int
proc_pidfdinfo(int pid, int flavor, int fd, user_addr_t buffer, uint32_t buffersize, int32_t * retval)
{
proc_t p;
int error = ENOTSUP;
struct fileproc * fp = NULL;
uint32_t size;
switch (flavor) {
case PROC_PIDFDVNODEINFO:
size = PROC_PIDFDVNODEINFO_SIZE;
break;
case PROC_PIDFDVNODEPATHINFO:
size = PROC_PIDFDVNODEPATHINFO_SIZE;
break;
case PROC_PIDFDSOCKETINFO:
size = PROC_PIDFDSOCKETINFO_SIZE;
break;
case PROC_PIDFDPSEMINFO:
size = PROC_PIDFDPSEMINFO_SIZE;
break;
case PROC_PIDFDPSHMINFO:
size = PROC_PIDFDPSHMINFO_SIZE;
break;
case PROC_PIDFDPIPEINFO:
size = PROC_PIDFDPIPEINFO_SIZE;
break;
case PROC_PIDFDKQUEUEINFO:
size = PROC_PIDFDKQUEUEINFO_SIZE;
break;
case PROC_PIDFDKQUEUE_EXTINFO:
size = PROC_PIDFDKQUEUE_EXTINFO_SIZE;
if (buffer == (user_addr_t)0)
size = 0;
break;
case PROC_PIDFDATALKINFO:
size = PROC_PIDFDATALKINFO_SIZE;
break;
default:
return(EINVAL);
}
if (buffersize < size)
return(ENOMEM);
if ((p = proc_find(pid)) == PROC_NULL) {
error = ESRCH;
goto out;
}
/* Do we have permission to look into this? */
if ((error = proc_security_policy(p, PROC_INFO_CALL_PIDFDINFO, flavor, CHECK_SAME_USER)))
goto out1;
switch (flavor) {
case PROC_PIDFDVNODEINFO: {
vnode_t vp;
uint32_t vid=0;
if ((error = fp_getfvpandvid(p, fd, &fp, &vp, &vid)) !=0) {
goto out1;
}
/* no need to be under the fdlock */
error = pid_vnodeinfo(vp, vid, fp, p, fd, buffer, buffersize, retval);
}
break;
case PROC_PIDFDVNODEPATHINFO: {
vnode_t vp;
uint32_t vid=0;
if ((error = fp_getfvpandvid(p, fd, &fp, &vp, &vid)) !=0) {
goto out1;
}
/* no need to be under the fdlock */
error = pid_vnodeinfopath(vp, vid, fp, p, fd, buffer, buffersize, retval);
}
break;
case PROC_PIDFDSOCKETINFO: {
socket_t so;
if ((error = fp_getfsock(p, fd, &fp, &so)) !=0) {
goto out1;
}
/* no need to be under the fdlock */
error = pid_socketinfo(so, fp, p, fd, buffer, buffersize, retval);
}
break;
case PROC_PIDFDPSEMINFO: {
struct psemnode * psem;
if ((error = fp_getfpsem(p, fd, &fp, &psem)) !=0) {
goto out1;
}
/* no need to be under the fdlock */
error = pid_pseminfo(psem, fp, p, fd, buffer, buffersize, retval);
}
break;
case PROC_PIDFDPSHMINFO: {
struct pshmnode * pshm;
if ((error = fp_getfpshm(p, fd, &fp, &pshm)) !=0) {
goto out1;
}
/* no need to be under the fdlock */
error = pid_pshminfo(pshm, fp, p, fd, buffer, buffersize, retval);
}
break;
case PROC_PIDFDPIPEINFO: {
struct pipe * cpipe;
if ((error = fp_getfpipe(p, fd, &fp, &cpipe)) !=0) {
goto out1;
}
/* no need to be under the fdlock */
error = pid_pipeinfo(cpipe, fp, p, fd, buffer, buffersize, retval);
}
break;
case PROC_PIDFDKQUEUEINFO: {
struct kqueue * kq;
if (fd == -1) {
if ((kq = p->p_fd->fd_wqkqueue) == NULL) {
/* wqkqueue is initialized on-demand */
error = 0;
break;
}
} else if ((error = fp_getfkq(p, fd, &fp, &kq)) != 0) {
goto out1;
}
/* no need to be under the fdlock */
error = pid_kqueueinfo(kq, fp, p, fd, buffer, buffersize, retval);
}
break;
case PROC_PIDFDKQUEUE_EXTINFO: {
struct kqueue * kq;
if (fd == -1) {
if ((kq = p->p_fd->fd_wqkqueue) == NULL) {
/* wqkqueue is initialized on-demand */
error = 0;
break;
}
} else if ((error = fp_getfkq(p, fd, &fp, &kq)) != 0) {
goto out1;
}
error = pid_kqueue_extinfo(p, kq, buffer, buffersize, retval);
}
break;
default: {
error = EINVAL;
goto out1;
}
}
if (fp) {
fp_drop(p, fd, fp , 0);
}
out1 :
proc_rele(p);
out:
return(error);
}
#define MAX_UPTRS 16392
int
proc_pidlistuptrs(proc_t p, user_addr_t buffer, uint32_t buffersize, int32_t *retval)
{
uint32_t count = 0;
int error = 0;
void *kbuf = NULL;
int32_t nuptrs = 0;
if (buffer != USER_ADDR_NULL) {
count = buffersize / sizeof(uint64_t);
if (count > MAX_UPTRS) {
count = MAX_UPTRS;
}
if (count > 0) {
buffersize = count * sizeof(uint64_t);
kbuf = kalloc(buffersize);
bzero(kbuf, buffersize);
assert(kbuf != NULL);
} else {
buffersize = 0;
}
} else {
buffersize = 0;
}
nuptrs = kevent_proc_copy_uptrs(p, kbuf, buffersize);
if (kbuf) {
size_t copysize;
if (os_mul_overflow(nuptrs, sizeof(uint64_t), &copysize)) {
error = ERANGE;
goto out;
}
if (copysize > buffersize) {
copysize = buffersize;
}
error = copyout(kbuf, buffer, copysize);
}
out:
*retval = nuptrs;
if (kbuf) {
kfree(kbuf, buffersize);
kbuf = NULL;
}
return error;
}
/*
* Helper function for proc_pidfileportinfo
*/
struct fileport_info_args {
int fia_flavor;
user_addr_t fia_buffer;
uint32_t fia_buffersize;
int32_t *fia_retval;
};
static kern_return_t
proc_fileport_info(__unused mach_port_name_t name,
struct fileglob *fg, void *arg)
{
struct fileport_info_args *fia = arg;
struct fileproc __fileproc, *fp = &__fileproc;
int error;
bzero(fp, sizeof (*fp));
fp->f_fglob = fg;
switch (fia->fia_flavor) {
case PROC_PIDFILEPORTVNODEPATHINFO: {
vnode_t vp;
if (FILEGLOB_DTYPE(fg) != DTYPE_VNODE) {
error = ENOTSUP;
break;
}
vp = (struct vnode *)fg->fg_data;
error = pid_vnodeinfopath(vp, vnode_vid(vp), fp, PROC_NULL, 0,
fia->fia_buffer, fia->fia_buffersize, fia->fia_retval);
} break;
case PROC_PIDFILEPORTSOCKETINFO: {
socket_t so;
if (FILEGLOB_DTYPE(fg) != DTYPE_SOCKET) {
error = EOPNOTSUPP;
break;
}
so = (socket_t)fg->fg_data;
error = pid_socketinfo(so, fp, PROC_NULL, 0,
fia->fia_buffer, fia->fia_buffersize, fia->fia_retval);
} break;
case PROC_PIDFILEPORTPSHMINFO: {
struct pshmnode *pshm;
if (FILEGLOB_DTYPE(fg) != DTYPE_PSXSHM) {
error = EBADF; /* ick - mirror fp_getfpshm */
break;
}
pshm = (struct pshmnode *)fg->fg_data;
error = pid_pshminfo(pshm, fp, PROC_NULL, 0,
fia->fia_buffer, fia->fia_buffersize, fia->fia_retval);
} break;
case PROC_PIDFILEPORTPIPEINFO: {
struct pipe *cpipe;
if (FILEGLOB_DTYPE(fg) != DTYPE_PIPE) {
error = EBADF; /* ick - mirror fp_getfpipe */
break;
}
cpipe = (struct pipe *)fg->fg_data;
error = pid_pipeinfo(cpipe, fp, PROC_NULL, 0,
fia->fia_buffer, fia->fia_buffersize, fia->fia_retval);
} break;
default:
error = EINVAL;
break;
}
return (error);
}
/************************* proc_pidfileportinfo routine *********************/
int
proc_pidfileportinfo(int pid, int flavor, mach_port_name_t name,
user_addr_t buffer, uint32_t buffersize, int32_t *retval)
{
proc_t p;
int error = ENOTSUP;
uint32_t size;
struct fileport_info_args fia;
/* fileport types are restricted by file_issendable() */
switch (flavor) {
case PROC_PIDFILEPORTVNODEPATHINFO:
size = PROC_PIDFILEPORTVNODEPATHINFO_SIZE;
break;
case PROC_PIDFILEPORTSOCKETINFO:
size = PROC_PIDFILEPORTSOCKETINFO_SIZE;
break;
case PROC_PIDFILEPORTPSHMINFO:
size = PROC_PIDFILEPORTPSHMINFO_SIZE;
break;
case PROC_PIDFILEPORTPIPEINFO:
size = PROC_PIDFILEPORTPIPEINFO_SIZE;
break;
default:
return (EINVAL);
}
if (buffersize < size)
return (ENOMEM);
if ((p = proc_find(pid)) == PROC_NULL) {
error = ESRCH;
goto out;
}
/* Do we have permission to look into this? */
if ((error = proc_security_policy(p, PROC_INFO_CALL_PIDFILEPORTINFO, flavor, CHECK_SAME_USER)))
goto out1;
fia.fia_flavor = flavor;
fia.fia_buffer = buffer;
fia.fia_buffersize = buffersize;
fia.fia_retval = retval;
if (fileport_invoke(p->task, name,
proc_fileport_info, &fia, &error) != KERN_SUCCESS)
error = EINVAL;
out1:
proc_rele(p);
out:
return (error);
}
int
proc_security_policy(proc_t targetp, __unused int callnum, __unused int flavor, boolean_t check_same_user)
{
#if CONFIG_MACF
int error = 0;
if ((error = mac_proc_check_proc_info(current_proc(), targetp, callnum, flavor)))
return (error);
#endif
/* The 'listpids' call doesn't have a target proc */
if (targetp == PROC_NULL) {
assert(callnum == PROC_INFO_CALL_LISTPIDS && check_same_user == NO_CHECK_SAME_USER);
return (0);
}
/*
* Check for 'get information for processes owned by other users' privilege
* root has this privilege by default
*/
if (priv_check_cred(kauth_cred_get(), PRIV_GLOBAL_PROC_INFO, 0) == 0)
check_same_user = FALSE;
if (check_same_user) {
kauth_cred_t target_cred;
uid_t target_uid;
target_cred = kauth_cred_proc_ref(targetp);
target_uid = kauth_cred_getuid(target_cred);
kauth_cred_unref(&target_cred);
if (kauth_getuid() != target_uid)
return(EPERM);
}
return(0);
}
int
proc_kernmsgbuf(user_addr_t buffer, uint32_t buffersize, int32_t * retval)
{
if (suser(kauth_cred_get(), (u_short *)0) == 0) {
return(log_dmesg(buffer, buffersize, retval));
} else
return(EPERM);
}
/* ********* process control sets on self only */
int
proc_setcontrol(int pid, int flavor, uint64_t arg, user_addr_t buffer, uint32_t buffersize, __unused int32_t * retval)
{
struct proc * pself = PROC_NULL;
int error = 0;
uint32_t pcontrol = (uint32_t)arg;
struct uthread *ut = NULL;
char name_buf[MAXTHREADNAMESIZE];
pself = current_proc();
if (pid != pself->p_pid)
return(EINVAL);
/* Do we have permission to look into this? */
if ((error = proc_security_policy(pself, PROC_INFO_CALL_SETCONTROL, flavor, NO_CHECK_SAME_USER)))
goto out;
switch (flavor) {
case PROC_SELFSET_PCONTROL: {
if (pcontrol > P_PCMAX)
return(EINVAL);
proc_lock(pself);
/* reset existing control setting while retaining action state */
pself->p_pcaction &= PROC_ACTION_MASK;
/* set new control state */
pself->p_pcaction |= pcontrol;
proc_unlock(pself);
}
break;
case PROC_SELFSET_THREADNAME: {
/*
* This is a bit ugly, as it copies the name into the kernel, and then
* invokes bsd_setthreadname again to copy it into the uthread name
* buffer. Hopefully this isn't such a hot codepath that an additional
* MAXTHREADNAMESIZE copy is a big issue.
*/
if (buffersize > (MAXTHREADNAMESIZE - 1)) {
return ENAMETOOLONG;
}
ut = current_uthread();
bzero(name_buf, MAXTHREADNAMESIZE);
error = copyin(buffer, name_buf, buffersize);
if (!error) {
bsd_setthreadname(ut, name_buf);
}
}
break;
case PROC_SELFSET_VMRSRCOWNER: {
/* need to to be superuser */
if (suser(kauth_cred_get(), (u_short *)0) != 0) {
error = EPERM;
goto out;
}
proc_lock(pself);
/* reset existing control setting while retaining action state */
pself->p_lflag |= P_LVMRSRCOWNER;
proc_unlock(pself);
}
break;
case PROC_SELFSET_DELAYIDLESLEEP: {
/* mark or clear the process property to delay idle sleep disk IO */
if (pcontrol != 0)
OSBitOrAtomic(P_DELAYIDLESLEEP, &pself->p_flag);
else
OSBitAndAtomic(~((uint32_t)P_DELAYIDLESLEEP), &pself->p_flag);
}
break;
default:
error = ENOTSUP;
}
out:
return(error);
}
#if CONFIG_MEMORYSTATUS
int
proc_dirtycontrol(int pid, int flavor, uint64_t arg, int32_t *retval) {
struct proc *target_p;
int error = 0;
uint32_t pcontrol = (uint32_t)arg;
kauth_cred_t my_cred, target_cred;
boolean_t self = FALSE;
boolean_t child = FALSE;
boolean_t zombref = FALSE;
pid_t selfpid;
target_p = proc_find(pid);
if (target_p == PROC_NULL) {
if (flavor == PROC_DIRTYCONTROL_GET) {
target_p = proc_find_zombref(pid);
zombref = 1;
}
if (target_p == PROC_NULL)
return(ESRCH);
}
my_cred = kauth_cred_get();
target_cred = kauth_cred_proc_ref(target_p);
/* Do we have permission to look into this? */
if ((error = proc_security_policy(target_p, PROC_INFO_CALL_DIRTYCONTROL, flavor, NO_CHECK_SAME_USER)))
goto out;
selfpid = proc_selfpid();
if (pid == selfpid) {
self = TRUE;
} else if (target_p->p_ppid == selfpid) {
child = TRUE;
}
switch (flavor) {
case PROC_DIRTYCONTROL_TRACK: {
/* Only allow the process itself, its parent, or root */
if ((self == FALSE) && (child == FALSE) && kauth_cred_issuser(kauth_cred_get()) != TRUE) {
error = EPERM;
goto out;
}
error = memorystatus_dirty_track(target_p, pcontrol);
}
break;
case PROC_DIRTYCONTROL_SET: {
/* Check privileges; use cansignal() here since the process could be terminated */
if (!cansignal(current_proc(), my_cred, target_p, SIGKILL)) {
error = EPERM;
goto out;
}
error = memorystatus_dirty_set(target_p, self, pcontrol);
}
break;
case PROC_DIRTYCONTROL_GET: {
/* No permissions check - dirty state is freely available */
if (retval) {
*retval = memorystatus_dirty_get(target_p);
} else {
error = EINVAL;
}
}
break;
case PROC_DIRTYCONTROL_CLEAR: {
/* Check privileges; use cansignal() here since the process could be terminated */
if (!cansignal(current_proc(), my_cred, target_p, SIGKILL)) {
error = EPERM;
goto out;
}
error = memorystatus_dirty_clear(target_p, pcontrol);
}
break;
}
out:
if (zombref)
proc_drop_zombref(target_p);
else
proc_rele(target_p);
kauth_cred_unref(&target_cred);
return(error);
}
#else
int
proc_dirtycontrol(__unused int pid, __unused int flavor, __unused uint64_t arg, __unused int32_t *retval) {
return ENOTSUP;
}
#endif /* CONFIG_MEMORYSTATUS */
/*
* proc_terminate() provides support for sudden termination.
* SIGKILL is issued to tracked, clean processes; otherwise,
* SIGTERM is sent.
*/
int
proc_terminate(int pid, int32_t *retval)
{
int error = 0;
proc_t p;
kauth_cred_t uc = kauth_cred_get();
int sig;
#if 0
/* XXX: Check if these are necessary */
AUDIT_ARG(pid, pid);
AUDIT_ARG(signum, sig);
#endif
if (pid <= 0 || retval == NULL) {
return (EINVAL);
}
if ((p = proc_find(pid)) == NULL) {
return (ESRCH);
}
#if 0
/* XXX: Check if these are necessary */
AUDIT_ARG(process, p);
#endif
/* Check privileges; if SIGKILL can be issued, then SIGTERM is also OK */
if (!cansignal(current_proc(), uc, p, SIGKILL)) {
error = EPERM;
goto out;
}
/* Not allowed to sudden terminate yourself */
if (p == current_proc()) {
error = EPERM;
goto out;
}
#if CONFIG_MEMORYSTATUS
/* Determine requisite signal to issue */
sig = memorystatus_on_terminate(p);
#else
sig = SIGTERM;
#endif
proc_set_task_policy(p->task, TASK_POLICY_ATTRIBUTE,
TASK_POLICY_TERMINATED, TASK_POLICY_ENABLE);
psignal(p, sig);
*retval = sig;
out:
proc_rele(p);
return error;
}
/*
* copy stat64 structure into vinfo_stat structure.
*/
static void
munge_vinfo_stat(struct stat64 *sbp, struct vinfo_stat *vsbp)
{
bzero(vsbp, sizeof(struct vinfo_stat));
vsbp->vst_dev = sbp->st_dev;
vsbp->vst_mode = sbp->st_mode;
vsbp->vst_nlink = sbp->st_nlink;
vsbp->vst_ino = sbp->st_ino;
vsbp->vst_uid = sbp->st_uid;
vsbp->vst_gid = sbp->st_gid;
vsbp->vst_atime = sbp->st_atimespec.tv_sec;
vsbp->vst_atimensec = sbp->st_atimespec.tv_nsec;
vsbp->vst_mtime = sbp->st_mtimespec.tv_sec;
vsbp->vst_mtimensec = sbp->st_mtimespec.tv_nsec;
vsbp->vst_ctime = sbp->st_ctimespec.tv_sec;
vsbp->vst_ctimensec = sbp->st_ctimespec.tv_nsec;
vsbp->vst_birthtime = sbp->st_birthtimespec.tv_sec;
vsbp->vst_birthtimensec = sbp->st_birthtimespec.tv_nsec;
vsbp->vst_size = sbp->st_size;
vsbp->vst_blocks = sbp->st_blocks;
vsbp->vst_blksize = sbp->st_blksize;
vsbp->vst_flags = sbp->st_flags;
vsbp->vst_gen = sbp->st_gen;
vsbp->vst_rdev = sbp->st_rdev;
vsbp->vst_qspare[0] = sbp->st_qspare[0];
vsbp->vst_qspare[1] = sbp->st_qspare[1];
}
int
proc_pid_rusage(int pid, int flavor, user_addr_t buffer, __unused int32_t *retval)
{
proc_t p;
int error;
int zombie = 0;
if ((p = proc_find(pid)) == PROC_NULL) {
if ((p = proc_find_zombref(pid)) == PROC_NULL) {
return (ESRCH);
}
zombie = 1;
}
/* Do we have permission to look into this? */
if ((error = proc_security_policy(p, PROC_INFO_CALL_PIDRUSAGE, flavor, CHECK_SAME_USER)))
goto out;
error = proc_get_rusage(p, flavor, buffer, zombie);
out:
if (zombie)
proc_drop_zombref(p);
else
proc_rele(p);
return (error);
}
void
proc_archinfo(proc_t p, struct proc_archinfo *pai)
{
proc_lock(p);
pai->p_cputype = p->p_cputype;
pai->p_cpusubtype = p->p_cpusubtype;
proc_unlock(p);
}
void
proc_pidcoalitioninfo(proc_t p, struct proc_pidcoalitioninfo *ppci)
{
bzero(ppci, sizeof(*ppci));
proc_coalitionids(p, ppci->coalition_id);
}
int
proc_pidexitreasoninfo(proc_t p, struct proc_exitreasoninfo *peri, struct proc_exitreasonbasicinfo *pberi)
{
uint32_t reason_data_size = 0;
int error = 0;
pid_t selfpid = proc_selfpid();
proc_lock(p);
/*
* One (and only one) of peri and pberi must be non-NULL.
*/
assert((peri != NULL) || (pberi != NULL));
assert((peri == NULL) || (pberi == NULL));
/*
* Allow access to the parent of the exiting
* child or the parent debugger only.
*/
do {
if (p->p_ppid == selfpid)
break; /* parent => ok */
if ((p->p_lflag & P_LTRACED) != 0 &&
(p->p_oppid == selfpid))
break; /* parent-in-waiting => ok */
proc_unlock(p);
return EACCES;
} while (0);
if (p->p_exit_reason == OS_REASON_NULL) {
proc_unlock(p);
return ENOENT;
}
if (p->p_exit_reason->osr_kcd_buf != NULL) {
reason_data_size = kcdata_memory_get_used_bytes(&p->p_exit_reason->osr_kcd_descriptor);
}
if (peri != NULL) {
peri->eri_namespace = p->p_exit_reason->osr_namespace;
peri->eri_code = p->p_exit_reason->osr_code;
peri->eri_flags = p->p_exit_reason->osr_flags;
if ((peri->eri_kcd_buf == 0) || (peri->eri_reason_buf_size < reason_data_size)) {
proc_unlock(p);
return ENOMEM;
}
peri->eri_reason_buf_size = reason_data_size;
if (reason_data_size != 0) {
error = copyout(p->p_exit_reason->osr_kcd_buf, peri->eri_kcd_buf, reason_data_size);
}
} else {
pberi->beri_namespace = p->p_exit_reason->osr_namespace;
pberi->beri_code = p->p_exit_reason->osr_code;
pberi->beri_flags = p->p_exit_reason->osr_flags;
pberi->beri_reason_buf_size = reason_data_size;
}
proc_unlock(p);
return error;
}
/*
* Wrapper to provide NOTE_EXIT_DETAIL and NOTE_EXITSTATUS
* It mimics the data that is typically captured by the
* EVFILT_PROC, NOTE_EXIT event mechanism.
* See filt_proc() in kern_event.c.
*/
int
proc_pidnoteexit(proc_t p, uint64_t flags, uint32_t *data)
{
uint32_t exit_data = 0;
uint32_t exit_flags = (uint32_t)flags;
proc_lock(p);
/*
* Allow access to the parent of the exiting
* child or the parent debugger only.
*/
do {
pid_t selfpid = proc_selfpid();
if (p->p_ppid == selfpid)
break; /* parent => ok */
if ((p->p_lflag & P_LTRACED) != 0 &&
(p->p_oppid == selfpid))
break; /* parent-in-waiting => ok */
proc_unlock(p);
return (EACCES);
} while (0);
if ((exit_flags & NOTE_EXITSTATUS) != 0) {
/* The signal and exit status */
exit_data |= (p->p_xstat & NOTE_PDATAMASK);
}
if ((exit_flags & NOTE_EXIT_DETAIL) != 0) {
/* The exit detail */
if ((p->p_lflag & P_LTERM_DECRYPTFAIL) != 0) {
exit_data |= NOTE_EXIT_DECRYPTFAIL;
}
if ((p->p_lflag & P_LTERM_JETSAM) != 0) {
exit_data |= NOTE_EXIT_MEMORY;
switch (p->p_lflag & P_JETSAM_MASK) {
case P_JETSAM_VMPAGESHORTAGE:
exit_data |= NOTE_EXIT_MEMORY_VMPAGESHORTAGE;
break;
case P_JETSAM_VMTHRASHING:
exit_data |= NOTE_EXIT_MEMORY_VMTHRASHING;
break;
case P_JETSAM_FCTHRASHING:
exit_data |= NOTE_EXIT_MEMORY_FCTHRASHING;
break;
case P_JETSAM_VNODE:
exit_data |= NOTE_EXIT_MEMORY_VNODE;
break;
case P_JETSAM_HIWAT:
exit_data |= NOTE_EXIT_MEMORY_HIWAT;
break;
case P_JETSAM_PID:
exit_data |= NOTE_EXIT_MEMORY_PID;
break;
case P_JETSAM_IDLEEXIT:
exit_data |= NOTE_EXIT_MEMORY_IDLE;
break;
}
}
if ((p->p_csflags & CS_KILLED) != 0) {
exit_data |= NOTE_EXIT_CSERROR;
}
}
proc_unlock(p);
*data = exit_data;
return (0);
}
int
proc_piddynkqueueinfo(int pid, int flavor, kqueue_id_t kq_id,
user_addr_t ubuf, uint32_t bufsize, int32_t *retval)
{
proc_t p;
int err;
if (ubuf == USER_ADDR_NULL) {
return EFAULT;
}
p = proc_find(pid);
if (p == PROC_NULL) {
return ESRCH;
}
err = proc_security_policy(p, PROC_INFO_CALL_PIDDYNKQUEUEINFO, 0, CHECK_SAME_USER);
if (err) {
goto out;
}
switch (flavor) {
case PROC_PIDDYNKQUEUE_INFO:
err = kevent_copyout_dynkqinfo(p, kq_id, ubuf, bufsize, retval);
break;
case PROC_PIDDYNKQUEUE_EXTINFO:
err = kevent_copyout_dynkqextinfo(p, kq_id, ubuf, bufsize, retval);
break;
default:
err = ENOTSUP;
break;
}
out:
proc_rele(p);
return err;
}
#if !CONFIG_EMBEDDED
int
proc_udata_info(int pid, int flavor, user_addr_t buffer, uint32_t bufsize, int32_t *retval)
{
int err = 0;
proc_t p;
p = proc_find(pid);
if (p == PROC_NULL) {
return ESRCH;
}
/*
* Only support calls against oneself for the moment.
*/
if (p->p_pid != proc_selfpid()) {
err = EACCES;
goto out;
}
if (bufsize != sizeof (p->p_user_data)) {
err = EINVAL;
goto out;
}
switch (flavor) {
case PROC_UDATA_INFO_SET:
err = copyin(buffer, &p->p_user_data, sizeof (p->p_user_data));
break;
case PROC_UDATA_INFO_GET:
err = copyout(&p->p_user_data, buffer, sizeof (p->p_user_data));
break;
default:
err = ENOTSUP;
break;
}
out:
proc_rele(p);
if (err == 0) {
*retval = 0;
}
return err;
}
#endif /* !CONFIG_EMBEDDED */
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