/*
- * Copyright (c) 2005, 2010 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2005-2013 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
#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/mach_types.h>
#include <mach/vm_param.h>
#include <kern/task.h>
-#include <kern/lock.h>
#include <kern/kalloc.h>
#include <kern/assert.h>
#include <vm/vm_kern.h>
#include <sys/kdebug.h>
#include <sys/sysproto.h>
#include <sys/msgbuf.h>
+#include <sys/priv.h>
-#include <sys/msgbuf.h>
+#include <sys/guarded.h>
#include <machine/machine_routines.h>
#include <vm/vm_protos.h>
+/* Needed by proc_pidnoteexit() */
+#include <sys/event.h>
+#include <sys/codesign.h>
+
struct pshmnode;
struct psemnode;
struct pipe;
struct atalk;
uint64_t get_dispatchqueue_offset_from_proc(void *);
+uint64_t get_dispatchqueue_serialno_offset_from_proc(void *);
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 proc_listpids(uint32_t type, uint32_t tyoneinfo, user_addr_t buffer, uint32_t buffersize, int32_t * retval);
-int proc_pidinfo(int pid, int flavor, uint64_t arg, user_addr_t buffer, uint32_t buffersize, int32_t * retval);
-int proc_pidfdinfo(int pid, int flavor,int fd, user_addr_t buffer, uint32_t buffersize, int32_t * retval);
-int proc_kernmsgbuf(user_addr_t buffer, uint32_t buffersize, int32_t * retval);
-int proc_setcontrol(int pid, int flavor, uint64_t arg, user_addr_t buffer, uint32_t buffersize, int32_t * retval);
-int 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_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);
/* protos for procpidinfo calls */
-int proc_pidfdlist(proc_t p, user_addr_t buffer, uint32_t buffersize, int32_t *retval);
-int proc_pidbsdinfo(proc_t p, struct proc_bsdinfo *pbsd, int zombie);
-int proc_pidshortbsdinfo(proc_t p, struct proc_bsdshortinfo *pbsd_shortp, int zombie);
-int proc_pidtaskinfo(proc_t p, struct proc_taskinfo *ptinfo);
-int proc_pidallinfo(proc_t p, int flavor, uint64_t arg, user_addr_t buffer, uint32_t buffersize, int32_t *retval);
-int proc_pidthreadinfo(proc_t p, uint64_t arg, struct proc_threadinfo *pthinfo);
-int proc_pidthreadpathinfo(proc_t p, uint64_t arg, struct proc_threadwithpathinfo *pinfo);
-int proc_pidlistthreads(proc_t p, user_addr_t buffer, uint32_t buffersize, int32_t *retval);
-int proc_pidregioninfo(proc_t p, uint64_t arg, user_addr_t buffer, uint32_t buffersize, int32_t *retval);
-int proc_pidregionpathinfo(proc_t p, uint64_t arg, user_addr_t buffer, uint32_t buffersize, int32_t *retval);
-int proc_pidvnodepathinfo(proc_t p, uint64_t arg, user_addr_t buffer, uint32_t buffersize, int32_t *retval);
-int proc_pidpathinfo(proc_t p, uint64_t arg, user_addr_t buffer, uint32_t buffersize, int32_t *retval);
-int proc_pidworkqueueinfo(proc_t p, struct proc_workqueueinfo *pwqinfo);
-int proc_pidfileportlist(proc_t p, user_addr_t buffer, uint32_t buffersize, int32_t *retval);
+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, int 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, 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);
/* protos for proc_pidfdinfo calls */
-int pid_vnodeinfo(vnode_t vp, uint32_t vid, struct fileproc * fp, int closeonexec, user_addr_t buffer, uint32_t buffersize, int32_t * retval);
-int pid_vnodeinfopath(vnode_t vp, uint32_t vid, struct fileproc * fp, int closeonexec, user_addr_t buffer, uint32_t buffersize, int32_t * retval);
-int pid_socketinfo(socket_t so, struct fileproc *fp, int closeonexec, user_addr_t buffer, uint32_t buffersize, int32_t * retval);
-int pid_pseminfo(struct psemnode * psem, struct fileproc * fp, int closeonexec, user_addr_t buffer, uint32_t buffersize, int32_t * retval);
-int pid_pshminfo(struct pshmnode * pshm, struct fileproc * fp, int closeonexec, user_addr_t buffer, uint32_t buffersize, int32_t * retval);
-int pid_pipeinfo(struct pipe * p, struct fileproc * fp, int closeonexec, user_addr_t buffer, uint32_t buffersize, int32_t * retval);
-int pid_kqueueinfo(struct kqueue * kq, struct fileproc * fp, int closeonexec, user_addr_t buffer, uint32_t buffersize, int32_t * retval);
-int pid_atalkinfo(struct atalk * at, struct fileproc * fp, int closeonexec, user_addr_t buffer, uint32_t buffersize, int32_t * retval);
+int __attribute__ ((noinline)) pid_vnodeinfo(vnode_t vp, uint32_t vid, struct fileproc * fp, int closeonexec, user_addr_t buffer, uint32_t buffersize, int32_t * retval);
+int __attribute__ ((noinline)) pid_vnodeinfopath(vnode_t vp, uint32_t vid, struct fileproc * fp, int closeonexec, user_addr_t buffer, uint32_t buffersize, int32_t * retval);
+int __attribute__ ((noinline)) pid_socketinfo(socket_t so, struct fileproc *fp, int closeonexec, user_addr_t buffer, uint32_t buffersize, int32_t * retval);
+int __attribute__ ((noinline)) pid_pseminfo(struct psemnode * psem, struct fileproc * fp, int closeonexec, user_addr_t buffer, uint32_t buffersize, int32_t * retval);
+int __attribute__ ((noinline)) pid_pshminfo(struct pshmnode * pshm, struct fileproc * fp, int closeonexec, user_addr_t buffer, uint32_t buffersize, int32_t * retval);
+int __attribute__ ((noinline)) pid_pipeinfo(struct pipe * p, struct fileproc * fp, int closeonexec, user_addr_t buffer, uint32_t buffersize, int32_t * retval);
+int __attribute__ ((noinline)) pid_kqueueinfo(struct kqueue * kq, struct fileproc * fp, int closeonexec, user_addr_t buffer, uint32_t buffersize, int32_t * retval);
+int __attribute__ ((noinline)) pid_atalkinfo(struct atalk * at, struct fileproc * fp, int closeonexec, 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, int closeonexec, struct proc_fileinfo * finfo);
-static int proc_security_policy(proc_t p);
+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);
+
+extern int cansignal(struct proc *, kauth_cred_t, struct proc *, int, 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)
{
}
}
+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;
+ }
+}
+
/***************************** proc_info ********************/
int
{
switch(callnum) {
- case 1: /* proc_listpids */
+ case PROC_INFO_CALL_LISTPIDS:
/* pid contains type and flavor contains typeinfo */
return(proc_listpids(pid, flavor, buffer, buffersize, retval));
- case 2: /* proc_pidinfo */
+ case PROC_INFO_CALL_PIDINFO:
return(proc_pidinfo(pid, flavor, arg, buffer, buffersize, retval));
- case 3: /* proc_pidfdinfo */
+ case PROC_INFO_CALL_PIDFDINFO:
return(proc_pidfdinfo(pid, flavor, (int)arg, buffer, buffersize, retval));
- case 4: /* proc_kernmsgbuf */
+ case PROC_INFO_CALL_KERNMSGBUF:
return(proc_kernmsgbuf(buffer, buffersize, retval));
- case 5: /* set on self properties proc_setcontrol */
+ case PROC_INFO_CALL_SETCONTROL:
return(proc_setcontrol(pid, flavor, arg, buffer, buffersize, retval));
- case 6: /* proc_pidfileportinfo */
+ 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));
default:
return(EINVAL);
}
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));
}
-/********************************** proc_pidinfo routines ********************************/
+/********************************** proc_pidfdlist routines ********************************/
int
proc_pidfdlist(proc_t p, user_addr_t buffer, uint32_t buffersize, int32_t *retval)
for (n = 0; ((n < 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 = fp->f_fglob->fg_type;
+ pfd->proc_fdtype = (fdtype != DTYPE_ATALK) ?
+ fdtype : PROX_FDTYPE_ATALK;
count++;
pfd++;
}
struct fileport_fdtype_args *ffa = arg;
if (ffa->ffa_pfi != ffa->ffa_pfi_end) {
- ffa->ffa_pfi->proc_fdtype = fg->fg_type;
+ 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 */
pbsd->pbi_flags |= PROC_FLAG_CTTY;
}
+ if ((p->p_flag & P_DELAYIDLESLEEP) == P_DELAYIDLESLEEP)
+ pbsd->pbi_flags |= PROC_FLAG_DELAYIDLESLEEP;
switch(PROC_CONTROL_STATE(p)) {
case P_PCTHROTTLE:
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;
pbsd_shortp->pbsi_flags |= PROC_FLAG_PSUGID;
if ((p->p_flag & P_EXEC) == P_EXEC)
pbsd_shortp->pbsi_flags |= PROC_FLAG_EXEC;
+ if ((p->p_flag & P_DELAYIDLESLEEP) == P_DELAYIDLESLEEP)
+ pbsd_shortp->pbsi_flags |= PROC_FLAG_DELAYIDLESLEEP;
switch(PROC_CONTROL_STATE(p)) {
case P_PCTHROTTLE:
int
-proc_pidthreadinfo(proc_t p, uint64_t arg, struct proc_threadinfo *pthinfo)
+proc_pidthreadinfo(proc_t p, uint64_t arg, int 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, (struct proc_threadinfo_internal *)pthinfo, NULL, NULL);
+ error = fill_taskthreadinfo(p->task, threadaddr, thuniqueid, (struct proc_threadinfo_internal *)pthinfo, NULL, NULL);
if (error)
return(ESRCH);
else
bzero(pinfo, sizeof(struct proc_threadwithpathinfo));
- error = fill_taskthreadinfo(p->task, threadaddr, (struct proc_threadinfo_internal *)&pinfo->pt, (void *)&vp, &vid);
+ error = fill_taskthreadinfo(p->task, threadaddr, 0, (struct proc_threadinfo_internal *)&pinfo->pt, (void *)&vp, &vid);
if (error)
return(ESRCH);
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.
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 of the originator of the voucher.
+ */
+int
+proc_pidoriginatoruuid(uuid_t uuid, uint32_t buffersize)
+{
+ 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;
+ }
+
+ error = proc_piduuidinfo(originator_pid, uuid, buffersize);
+ return error;
+}
+
+/***************************** 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;
+ 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_BGSTATE: {
+ uint32_t is_backgrounded;
+ 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_pidinfo ********************************/
int error = ENOTSUP;
int gotref = 0;
int findzomb = 0;
- int refheld = 0, shortversion = 0;
+ int shortversion = 0;
uint32_t size;
int zombie = 0;
+ int thuniqueid = 0;
+ int uniqidversion = 0;
+ boolean_t check_same_user;
switch (flavor) {
case PROC_PIDLISTFDS:
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_PIDREGIONPATHINFO2:
+ size = PROC_PIDREGIONPATHINFO2_SIZE;
+ break;
+ case PROC_PIDREGIONPATHINFO3:
+ size = PROC_PIDREGIONPATHINFO3_SIZE;
+ break;
default:
return(EINVAL);
}
return(EOVERFLOW);
}
- if ((flavor != PROC_PIDTBSDINFO) && (flavor != PROC_PIDPATHINFO) && (flavor != PROC_PIDT_SHORTBSDINFO)) {
- if ((p = proc_find(pid)) == PROC_NULL) {
- error = ESRCH;
- goto out;
- } else {
- gotref = 1;
+ /* 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;
+ }
- /* Do we have permission to look into this ? */
- if ((error = proc_security_policy(p)) != 0) {
- goto out;
- }
- }
+ 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:
+ 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;
+
+ 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;
-
- zombie = 0;
- if (arg)
- findzomb = 1;
- p = proc_find(pid);
- if (p == PROC_NULL) {
- if (findzomb)
- p = proc_find_zombref(pid);
- if (p == NULL) {
- error = ESRCH;
- goto out;
- }
- zombie = 1;
- }
- refheld = 1;
- /* Do we have permission to look into this ? */
- if ((flavor != PROC_PIDT_SHORTBSDINFO) && ((error = proc_security_policy(p)) != 0)) {
- if (refheld != 0) {
- if (zombie != 0)
- proc_drop_zombref(p);
- else
- proc_rele(p);
- }
- goto out;
- }
+ 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) {
+ proc_piduniqidentifierinfo(p, &pbsd_uniqid.p_uniqidentifier);
+ pbsd_uniqid.pbsd = pbsd;
+ }
}
- if (refheld != 0) {
- if (zombie != 0)
- proc_drop_zombref(p);
- else
- proc_rele(p);
- }
+
if (error == 0) {
if (shortversion != 0) {
error = copyout(&pbsd_short, buffer, sizeof(struct proc_bsdshortinfo));
if (error == 0)
*retval = sizeof(struct proc_bsdshortinfo);
- } else {
+ } 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_PIDTHREADID64INFO:
+ thuniqueid = 1;
case PROC_PIDTHREADINFO:{
struct proc_threadinfo pthinfo;
- error = proc_pidthreadinfo(p, arg, &pthinfo);
+ error = proc_pidthreadinfo(p, arg, thuniqueid, &pthinfo);
if (error == 0) {
error = copyout(&pthinfo, buffer, sizeof(struct proc_threadinfo));
if (error == 0)
}
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_PIDPATHINFO: {
- p = proc_find(pid);
- if (p == PROC_NULL) {
- error = ESRCH;
- goto out;
- }
- gotref = 1;
error = proc_pidpathinfo(p, arg, buffer, buffersize, retval);
}
break;
}
break;
+ case PROC_PIDARCHINFO: {
+ struct proc_archinfo pai;
+ proc_archinfo(p, &pai);
+ error = copyout(&pai, buffer, sizeof(struct proc_archinfo));
+ if (error == 0) {
+ *retval = sizeof(struct proc_archinfo);
+ }
+ }
+
+ 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;
+
default:
error = ENOTSUP;
}
out:
if (gotref)
proc_rele(p);
+ else if (zombie)
+ proc_drop_zombref(p);
return(error);
}
void
fill_fileinfo(struct fileproc * fp, int closeonexec, 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 = fp->f_fglob->fg_type;
- if (fp->f_fglob->fg_count)
- fproc->fi_status |= PROC_FP_SHARED;
- if (closeonexec != 0)
- fproc->fi_status |= PROC_FP_CLEXEC;
+ 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 (closeonexec != 0)
+ fproc->fi_status |= PROC_FP_CLEXEC;
+
+ 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;
+ }
}
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);
}
return (error);
#else
+#pragma unused(so, fp, closeonexec, buffer)
*retval = 0;
return (ENOTSUP);
#endif
error = ESRCH;
goto out;
}
- /* Do we have permission to look into this ? */
- if ((error = proc_security_policy(p)) != 0) {
+
+ /* 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: {
}
break;
-#if NETAT
- case PROC_PIDFDATALKINFO: {
- struct atalk * at;
-
- if ((error = fp_getfatalk(p, fd, &fp, &at)) !=0) {
- goto out1;
- }
-
- /* no need to be under the fdlock */
- closeonexec = p->p_fd->fd_ofileflags[fd] & UF_EXCLOSE;
- error = pid_atalkinfo(at, fp, closeonexec, buffer, buffersize, retval);
- }
- break;
-#endif /* NETAT */
default: {
error = EINVAL;
goto out1;
case PROC_PIDFILEPORTVNODEPATHINFO: {
vnode_t vp;
- if (fg->fg_type != DTYPE_VNODE) {
+ if (FILEGLOB_DTYPE(fg) != DTYPE_VNODE) {
error = ENOTSUP;
break;
}
case PROC_PIDFILEPORTSOCKETINFO: {
socket_t so;
- if (fg->fg_type != DTYPE_SOCKET) {
+ if (FILEGLOB_DTYPE(fg) != DTYPE_SOCKET) {
error = EOPNOTSUPP;
break;
}
case PROC_PIDFILEPORTPSHMINFO: {
struct pshmnode *pshm;
- if (fg->fg_type != DTYPE_PSXSHM) {
+ if (FILEGLOB_DTYPE(fg) != DTYPE_PSXSHM) {
error = EBADF; /* ick - mirror fp_getfpshm */
break;
}
case PROC_PIDFILEPORTPIPEINFO: {
struct pipe *cpipe;
- if (fg->fg_type != DTYPE_PIPE) {
+ if (FILEGLOB_DTYPE(fg) != DTYPE_PIPE) {
error = EBADF; /* ick - mirror fp_getfpipe */
break;
}
error = ESRCH;
goto out;
}
- if ((error = proc_security_policy(p)) != 0) {
+
+ /* 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;
return (error);
}
-static int
-proc_security_policy(proc_t p)
+int
+proc_security_policy(proc_t targetp, __unused int callnum, __unused int flavor, boolean_t check_same_user)
{
- kauth_cred_t my_cred;
- uid_t uid;
+#if CONFIG_MACF
+ int error = 0;
- my_cred = kauth_cred_proc_ref(p);
- uid = kauth_cred_getuid(my_cred) ;
- kauth_cred_unref(&my_cred);
-
- if ((uid != kauth_cred_getuid(kauth_cred_get()))
- && suser(kauth_cred_get(), (u_short *)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);
}
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: {
}
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;
}
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, 0)) {
+ 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, 0)) {
+ 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, 0)) {
+ 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, THREAD_NULL, 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.
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));
+ ppci->coalition_id = proc_coalitionid(p);
+}
+
+
+
+/*
+ * 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);
+}
+
projects / apple / xnu.git / blobdiff