1 | /* |
2 | * Copyright (c) 2005-2021 Apple Inc. All rights reserved. |
3 | * |
4 | * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ |
5 | * |
6 | * This file contains Original Code and/or Modifications of Original Code |
7 | * as defined in and that are subject to the Apple Public Source License |
8 | * Version 2.0 (the 'License'). You may not use this file except in |
9 | * compliance with the License. The rights granted to you under the License |
10 | * may not be used to create, or enable the creation or redistribution of, |
11 | * unlawful or unlicensed copies of an Apple operating system, or to |
12 | * circumvent, violate, or enable the circumvention or violation of, any |
13 | * terms of an Apple operating system software license agreement. |
14 | * |
15 | * Please obtain a copy of the License at |
16 | * http://www.opensource.apple.com/apsl/ and read it before using this file. |
17 | * |
18 | * The Original Code and all software distributed under the License are |
19 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER |
20 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
21 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, |
22 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. |
23 | * Please see the License for the specific language governing rights and |
24 | * limitations under the License. |
25 | * |
26 | * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ |
27 | */ |
28 | |
29 | /* |
30 | * proc_info system call. |
31 | */ |
32 | |
33 | #include <sys/param.h> |
34 | #include <sys/systm.h> |
35 | #include <sys/kernel.h> |
36 | #include <sys/malloc.h> |
37 | #include <sys/proc_internal.h> |
38 | #include <sys/kauth.h> |
39 | #include <sys/file_internal.h> |
40 | #include <sys/vnode_internal.h> |
41 | #include <sys/unistd.h> |
42 | #include <sys/buf.h> |
43 | #include <sys/ioctl.h> |
44 | #include <sys/namei.h> |
45 | #include <sys/tty.h> |
46 | #include <sys/disklabel.h> |
47 | #include <sys/vm.h> |
48 | #include <sys/reason.h> |
49 | #include <sys/sysctl.h> |
50 | #include <sys/user.h> |
51 | #include <sys/aio_kern.h> |
52 | #include <sys/kern_memorystatus.h> |
53 | |
54 | #include <security/audit/audit.h> |
55 | |
56 | #include <mach/machine.h> |
57 | #include <mach/mach_types.h> |
58 | #include <mach/vm_param.h> |
59 | #include <kern/task.h> |
60 | #include <kern/kalloc.h> |
61 | #include <kern/assert.h> |
62 | #include <kern/policy_internal.h> |
63 | #include <kern/exc_guard.h> |
64 | |
65 | #include <vm/vm_kern.h> |
66 | #include <vm/vm_map.h> |
67 | #include <mach/host_info.h> |
68 | #include <mach/task_info.h> |
69 | #include <mach/thread_info.h> |
70 | #include <mach/vm_region.h> |
71 | #include <mach/vm_types.h> |
72 | |
73 | #include <sys/mount_internal.h> |
74 | #include <sys/proc_info.h> |
75 | #include <sys/bsdtask_info.h> |
76 | #include <sys/kdebug.h> |
77 | #include <sys/sysproto.h> |
78 | #include <sys/msgbuf.h> |
79 | #include <sys/priv.h> |
80 | #include <sys/syscall.h> |
81 | #include <IOKit/IOBSD.h> |
82 | |
83 | #include <sys/guarded.h> |
84 | |
85 | #include <machine/machine_routines.h> |
86 | |
87 | #include <kern/ipc_misc.h> |
88 | |
89 | #include <vm/vm_protos.h> |
90 | |
91 | #include <corpses/task_corpse.h> |
92 | |
93 | /* Needed by proc_pidnoteexit(), proc_pidlistuptrs() */ |
94 | #include <sys/event.h> |
95 | #include <sys/codesign.h> |
96 | |
97 | /* Needed by proc_listcoalitions() */ |
98 | #ifdef CONFIG_COALITIONS |
99 | #include <sys/coalition.h> |
100 | #endif |
101 | |
102 | #if CONFIG_MACF |
103 | #include <security/mac_framework.h> |
104 | #endif |
105 | |
106 | struct pshmnode; |
107 | struct psemnode; |
108 | struct pipe; |
109 | struct kqueue; |
110 | struct atalk; |
111 | |
112 | uint64_t get_dispatchqueue_offset_from_proc(void *); |
113 | uint64_t get_dispatchqueue_serialno_offset_from_proc(void *); |
114 | uint64_t get_dispatchqueue_label_offset_from_proc(void *p); |
115 | uint64_t get_return_to_kernel_offset_from_proc(void *p); |
116 | uint64_t get_wq_quantum_offset_from_proc(void *p); |
117 | int proc_info_internal(int callnum, int pid, uint32_t flags, uint64_t ext_id, int flavor, uint64_t arg, user_addr_t buffer, uint32_t buffersize, int32_t * retval); |
118 | |
119 | /* |
120 | * TODO: Replace the noinline attribute below. Currently, it serves |
121 | * to avoid stack bloat caused by inlining multiple functions that |
122 | * have large stack footprints; when the functions are independent |
123 | * of each other (will not both be called in any given call to the |
124 | * caller), this only serves to bloat the stack, as we allocate |
125 | * space for both functions, despite the fact that we only need a |
126 | * fraction of that space. |
127 | * |
128 | * Long term, these functions should not be allocating everything on |
129 | * the stack, and should move large allocations (the huge structs |
130 | * that proc info deals in) to the heap, or eliminate them if |
131 | * possible. |
132 | * |
133 | * The functions that most desperately need to improve stack usage |
134 | * (starting with the worst offenders): |
135 | * proc_pidvnodepathinfo |
136 | * proc_pidinfo |
137 | * proc_pidregionpathinfo |
138 | * pid_vnodeinfopath |
139 | * pid_pshminfo |
140 | * pid_pseminfo |
141 | * pid_socketinfo |
142 | * proc_pid_rusage |
143 | * proc_pidoriginatorinfo |
144 | */ |
145 | |
146 | /* protos for proc_info calls */ |
147 | static int __attribute__ ((noinline)) proc_listpids(uint32_t type, uint32_t tyoneinfo, user_addr_t buffer, uint32_t buffersize, int32_t * retval); |
148 | static int __attribute__ ((noinline)) proc_pidinfo(int pid, uint32_t flags, uint64_t ext_id, int flavor, uint64_t arg, user_addr_t buffer, uint32_t buffersize, int32_t * retval); |
149 | static int __attribute__ ((noinline)) proc_pidfdinfo(int pid, int flavor, int fd, user_addr_t buffer, uint32_t buffersize, int32_t * retval); |
150 | static int __attribute__ ((noinline)) proc_kernmsgbuf(user_addr_t buffer, uint32_t buffersize, int32_t * retval); |
151 | static int __attribute__ ((noinline)) proc_setcontrol(int pid, int flavor, uint64_t arg, user_addr_t buffer, uint32_t buffersize, int32_t * retval); |
152 | static int __attribute__ ((noinline)) proc_pidfileportinfo(int pid, int flavor, mach_port_name_t name, user_addr_t buffer, uint32_t buffersize, int32_t *retval); |
153 | static int __attribute__ ((noinline)) proc_dirtycontrol(int pid, int flavor, uint64_t arg, int32_t * retval); |
154 | static int __attribute__ ((noinline)) proc_terminate(int pid, int32_t * retval); |
155 | static int __attribute__ ((noinline)) proc_pid_rusage(int pid, int flavor, user_addr_t buffer, int32_t * retval); |
156 | static int __attribute__ ((noinline)) proc_pidoriginatorinfo(int pid, int flavor, user_addr_t buffer, uint32_t buffersize, int32_t * retval); |
157 | static int __attribute__ ((noinline)) proc_listcoalitions(int flavor, int coaltype, user_addr_t buffer, uint32_t buffersize, int32_t *retval); |
158 | static int __attribute__ ((noinline)) proc_can_use_foreground_hw(int pid, user_addr_t reason, uint32_t resonsize, int32_t *retval); |
159 | static int __attribute__ ((noinline)) proc_set_dyld_images(int pid, user_addr_t buffer, uint32_t buffersize, int32_t *retval); |
160 | |
161 | /* protos for procpidinfo calls */ |
162 | static int __attribute__ ((noinline)) proc_pidfdlist(proc_t p, user_addr_t buffer, uint32_t buffersize, int32_t *retval); |
163 | static int __attribute__ ((noinline)) proc_pidbsdinfo(proc_t p, struct proc_bsdinfo *pbsd, int zombie); |
164 | static int __attribute__ ((noinline)) proc_pidshortbsdinfo(proc_t p, struct proc_bsdshortinfo *pbsd_shortp, int zombie); |
165 | static int __attribute__ ((noinline)) proc_pidtaskinfo(proc_t p, struct proc_taskinfo *ptinfo); |
166 | static int __attribute__ ((noinline)) proc_pidthreadinfo(proc_t p, uint64_t arg, bool thuniqueid, struct proc_threadinfo *pthinfo); |
167 | static int __attribute__ ((noinline)) proc_pidthreadpathinfo(proc_t p, uint64_t arg, struct proc_threadwithpathinfo *pinfo); |
168 | static int __attribute__ ((noinline)) proc_pidthreadschedinfo(proc_t p, uint64_t arg, struct proc_threadschedinfo *schedinfo); |
169 | static int __attribute__ ((noinline)) proc_pidlistthreads(proc_t p, bool thuniqueid, user_addr_t buffer, uint32_t buffersize, int32_t *retval); |
170 | static int __attribute__ ((noinline)) proc_pidregioninfo(proc_t p, uint64_t arg, user_addr_t buffer, uint32_t buffersize, int32_t *retval); |
171 | static int __attribute__ ((noinline)) proc_pidregionpathinfo(proc_t p, uint64_t arg, user_addr_t buffer, uint32_t buffersize, int32_t *retval); |
172 | static int __attribute__ ((noinline)) proc_pidregionpathinfo2(proc_t p, uint64_t arg, user_addr_t buffer, uint32_t buffersize, int32_t *retval); |
173 | static int __attribute__ ((noinline)) proc_pidregionpathinfo3(proc_t p, uint64_t arg, user_addr_t buffer, uint32_t buffersize, int32_t *retval); |
174 | static int __attribute__ ((noinline)) proc_pidvnodepathinfo(proc_t p, uint64_t arg, user_addr_t buffer, uint32_t buffersize, int32_t *retval); |
175 | static int __attribute__ ((noinline)) proc_pidpathinfo(proc_t p, uint64_t arg, user_addr_t buffer, uint32_t buffersize, int32_t *retval); |
176 | static int __attribute__ ((noinline)) proc_pidworkqueueinfo(proc_t p, struct proc_workqueueinfo *pwqinfo); |
177 | static int __attribute__ ((noinline)) proc_pidfileportlist(proc_t p, user_addr_t buffer, size_t buffersize, int32_t *retval); |
178 | extern void __attribute__ ((noinline)) proc_piduniqidentifierinfo(proc_t p, struct proc_uniqidentifierinfo *p_uniqidinfo); |
179 | static void __attribute__ ((noinline)) proc_archinfo(proc_t p, struct proc_archinfo *pai); |
180 | static void __attribute__ ((noinline)) proc_pidcoalitioninfo(proc_t p, struct proc_pidcoalitioninfo *pci); |
181 | static int __attribute__ ((noinline)) proc_pidnoteexit(proc_t p, uint64_t arg, uint32_t *data); |
182 | static int __attribute__ ((noinline)) proc_pidexitreasoninfo(proc_t p, struct proc_exitreasoninfo *peri, struct proc_exitreasonbasicinfo *pberi); |
183 | static int __attribute__ ((noinline)) proc_pidlistuptrs(proc_t p, user_addr_t buffer, uint32_t buffersize, int32_t *retval); |
184 | static int __attribute__ ((noinline)) proc_piddynkqueueinfo(pid_t pid, int flavor, kqueue_id_t id, user_addr_t buffer, uint32_t buffersize, int32_t *retval); |
185 | static int __attribute__ ((noinline)) proc_pidregionpath(proc_t p, uint64_t arg, user_addr_t buffer, __unused uint32_t buffersize, int32_t *retval); |
186 | static int __attribute__ ((noinline)) proc_pidipctableinfo(proc_t p, struct proc_ipctableinfo *table_info); |
187 | |
188 | #if CONFIG_PROC_UDATA_STORAGE |
189 | int __attribute__ ((noinline)) proc_udata_info(pid_t pid, int flavor, user_addr_t buffer, uint32_t buffersize, int32_t *retval); |
190 | #endif |
191 | |
192 | /* protos for proc_pidfdinfo calls */ |
193 | static int __attribute__ ((noinline)) pid_vnodeinfo(vnode_t vp, struct fileproc * fp, proc_t proc, user_addr_t buffer, uint32_t buffersize, int32_t * retval); |
194 | static int __attribute__ ((noinline)) pid_vnodeinfopath(vnode_t vp, struct fileproc * fp, proc_t proc, user_addr_t buffer, uint32_t buffersize, int32_t * retval); |
195 | static int __attribute__ ((noinline)) pid_socketinfo(socket_t so, struct fileproc *fp, proc_t proc, user_addr_t buffer, uint32_t buffersize, int32_t * retval); |
196 | static int __attribute__ ((noinline)) pid_channelinfo(struct kern_channel *chan, struct fileproc *fp, proc_t proc, user_addr_t buffer, uint32_t buffersize, int32_t * retval); |
197 | static int __attribute__ ((noinline)) pid_pseminfo(struct psemnode * psem, struct fileproc * fp, proc_t proc, user_addr_t buffer, uint32_t buffersize, int32_t * retval); |
198 | static int __attribute__ ((noinline)) pid_pshminfo(struct pshmnode * pshm, struct fileproc * fp, proc_t proc, user_addr_t buffer, uint32_t buffersize, int32_t * retval); |
199 | static int __attribute__ ((noinline)) pid_pipeinfo(struct pipe * p, struct fileproc * fp, proc_t proc, user_addr_t buffer, uint32_t buffersize, int32_t * retval); |
200 | static int __attribute__ ((noinline)) pid_kqueueinfo(struct kqueue * kq, struct fileproc * fp, proc_t proc, user_addr_t buffer, uint32_t buffersize, int32_t * retval); |
201 | |
202 | |
203 | /* protos for misc */ |
204 | |
205 | static int proc_terminate_all_rsr(__unused int pid, __unused int flavor, int arg, int32_t *retval); |
206 | static int proc_terminate_all_rsr_filter(proc_t p, __unused void *arg); |
207 | static int proc_terminate_all_rsr_callback(proc_t p, void *arg); |
208 | static int proc_signal_with_audittoken(user_addr_t buffer, int signum, int32_t *retval); |
209 | static int proc_terminate_with_audittoken(user_addr_t buffer, int32_t *retval); |
210 | static int fill_vnodeinfo(vnode_t vp, struct vnode_info *vinfo, boolean_t check_fsgetpath); |
211 | static void fill_fileinfo(struct fileproc *fp, proc_t proc, struct proc_fileinfo * finfo); |
212 | static int proc_security_policy(proc_t targetp, int callnum, int flavor, boolean_t check_same_user); |
213 | static void munge_vinfo_stat(struct stat64 *sbp, struct vinfo_stat *vsbp); |
214 | static int proc_piduuidinfo(pid_t pid, uuid_t uuid_buf, uint32_t buffersize); |
215 | |
216 | extern int proc_pidpathinfo_internal(proc_t p, __unused uint64_t arg, char *buf, uint32_t buffersize, __unused int32_t *retval); |
217 | extern int cansignal(struct proc *, kauth_cred_t, struct proc *, int); |
218 | extern int proc_get_rusage(proc_t proc, int flavor, user_addr_t buffer, int is_zombie); |
219 | |
220 | #define CHECK_SAME_USER TRUE |
221 | #define NO_CHECK_SAME_USER FALSE |
222 | |
223 | uint64_t |
224 | get_dispatchqueue_offset_from_proc(void *p) |
225 | { |
226 | if (p != NULL) { |
227 | proc_t pself = (proc_t)p; |
228 | return pself->p_dispatchqueue_offset; |
229 | } else { |
230 | return (uint64_t)0; |
231 | } |
232 | } |
233 | |
234 | uint64_t |
235 | get_wq_quantum_offset_from_proc(void *p) |
236 | { |
237 | if (p != NULL) { |
238 | proc_t pself = (proc_t)p; |
239 | return pself->p_pthread_wq_quantum_offset; |
240 | } else { |
241 | return (uint64_t)0; |
242 | } |
243 | } |
244 | |
245 | uint64_t |
246 | get_dispatchqueue_serialno_offset_from_proc(void *p) |
247 | { |
248 | if (p != NULL) { |
249 | proc_t pself = (proc_t)p; |
250 | return pself->p_dispatchqueue_serialno_offset; |
251 | } else { |
252 | return (uint64_t)0; |
253 | } |
254 | } |
255 | |
256 | uint64_t |
257 | get_dispatchqueue_label_offset_from_proc(void *p) |
258 | { |
259 | if (p != NULL) { |
260 | proc_t pself = (proc_t)p; |
261 | return pself->p_dispatchqueue_label_offset; |
262 | } else { |
263 | return (uint64_t)0; |
264 | } |
265 | } |
266 | |
267 | uint64_t |
268 | get_return_to_kernel_offset_from_proc(void *p) |
269 | { |
270 | if (p != NULL) { |
271 | proc_t pself = (proc_t)p; |
272 | return pself->p_return_to_kernel_offset; |
273 | } else { |
274 | return (uint64_t)0; |
275 | } |
276 | } |
277 | |
278 | /***************************** proc_info ********************/ |
279 | |
280 | int |
281 | proc_info(__unused struct proc *p, struct proc_info_args * uap, int32_t *retval) |
282 | { |
283 | return proc_info_internal(callnum: uap->callnum, pid: uap->pid, flags: 0, ext_id: 0, flavor: uap->flavor, arg: uap->arg, buffer: uap->buffer, buffersize: uap->buffersize, retval); |
284 | } |
285 | |
286 | int |
287 | proc_info_extended_id(__unused struct proc *p, struct proc_info_extended_id_args *uap, int32_t *retval) |
288 | { |
289 | uint32_t flags = uap->flags; |
290 | |
291 | if ((flags & (PIF_COMPARE_IDVERSION | PIF_COMPARE_UNIQUEID)) == (PIF_COMPARE_IDVERSION | PIF_COMPARE_UNIQUEID)) { |
292 | return EINVAL; |
293 | } |
294 | |
295 | return proc_info_internal(callnum: uap->callnum, pid: uap->pid, flags, ext_id: uap->ext_id, flavor: uap->flavor, arg: uap->arg, buffer: uap->buffer, buffersize: uap->buffersize, retval); |
296 | } |
297 | |
298 | int |
299 | proc_info_internal(int callnum, int pid, uint32_t flags, uint64_t ext_id, int flavor, uint64_t arg, user_addr_t buffer, uint32_t buffersize, int32_t * retval) |
300 | { |
301 | switch (callnum) { |
302 | case PROC_INFO_CALL_LISTPIDS: |
303 | /* pid contains type and flavor contains typeinfo */ |
304 | return proc_listpids(type: pid, tyoneinfo: flavor, buffer, buffersize, retval); |
305 | case PROC_INFO_CALL_PIDINFO: |
306 | return proc_pidinfo(pid, flags, ext_id, flavor, arg, buffer, buffersize, retval); |
307 | case PROC_INFO_CALL_PIDFDINFO: |
308 | return proc_pidfdinfo(pid, flavor, fd: (int)arg, buffer, buffersize, retval); |
309 | case PROC_INFO_CALL_KERNMSGBUF: |
310 | return proc_kernmsgbuf(buffer, buffersize, retval); |
311 | case PROC_INFO_CALL_SETCONTROL: |
312 | return proc_setcontrol(pid, flavor, arg, buffer, buffersize, retval); |
313 | case PROC_INFO_CALL_PIDFILEPORTINFO: |
314 | return proc_pidfileportinfo(pid, flavor, name: (mach_port_name_t)arg, buffer, buffersize, retval); |
315 | case PROC_INFO_CALL_TERMINATE: |
316 | return proc_terminate(pid, retval); |
317 | case PROC_INFO_CALL_DIRTYCONTROL: |
318 | return proc_dirtycontrol(pid, flavor, arg, retval); |
319 | case PROC_INFO_CALL_PIDRUSAGE: |
320 | return proc_pid_rusage(pid, flavor, buffer, retval); |
321 | case PROC_INFO_CALL_PIDORIGINATORINFO: |
322 | return proc_pidoriginatorinfo(pid, flavor, buffer, buffersize, retval); |
323 | case PROC_INFO_CALL_LISTCOALITIONS: |
324 | return proc_listcoalitions(flavor: pid /* flavor */, coaltype: flavor /* coaltype */, buffer, |
325 | buffersize, retval); |
326 | case PROC_INFO_CALL_CANUSEFGHW: |
327 | return proc_can_use_foreground_hw(pid, reason: buffer, resonsize: buffersize, retval); |
328 | case PROC_INFO_CALL_PIDDYNKQUEUEINFO: |
329 | return proc_piddynkqueueinfo(pid, flavor, id: (kqueue_id_t)arg, buffer, buffersize, retval); |
330 | #if CONFIG_PROC_UDATA_STORAGE |
331 | case PROC_INFO_CALL_UDATA_INFO: |
332 | return proc_udata_info(pid, flavor, buffer, buffersize, retval); |
333 | #endif /* CONFIG_PROC_UDATA_STORAGE */ |
334 | case PROC_INFO_CALL_SET_DYLD_IMAGES: |
335 | return proc_set_dyld_images(pid, buffer, buffersize, retval); |
336 | case PROC_INFO_CALL_TERMINATE_RSR: |
337 | return proc_terminate_all_rsr(pid, flavor, arg: (int)arg, retval); |
338 | case PROC_INFO_CALL_SIGNAL_AUDITTOKEN: |
339 | return proc_signal_with_audittoken(buffer, signum: flavor, retval); |
340 | case PROC_INFO_CALL_TERMINATE_AUDITTOKEN: |
341 | return proc_terminate_with_audittoken(buffer, retval); |
342 | default: |
343 | return EINVAL; |
344 | } |
345 | |
346 | return EINVAL; |
347 | } |
348 | |
349 | /******************* proc_listpids routine ****************/ |
350 | int |
351 | proc_listpids(uint32_t type, uint32_t typeinfo, user_addr_t buffer, uint32_t buffersize, int32_t * retval) |
352 | { |
353 | uint32_t numprocs = 0; |
354 | uint32_t wantpids; |
355 | int *kbuf; |
356 | int *ptr; |
357 | uint32_t n; |
358 | int skip; |
359 | struct proc * p; |
360 | int error = 0; |
361 | struct proclist *current_list; |
362 | kauth_cred_t cred; |
363 | |
364 | /* Do we have permission to look into this? */ |
365 | if ((error = proc_security_policy(PROC_NULL, PROC_INFO_CALL_LISTPIDS, flavor: type, NO_CHECK_SAME_USER))) { |
366 | return error; |
367 | } |
368 | |
369 | /* if the buffer is null, return num of procs */ |
370 | if (buffer == (user_addr_t)0) { |
371 | *retval = ((nprocs + 20) * sizeof(int)); |
372 | return 0; |
373 | } |
374 | |
375 | if (buffersize < sizeof(int)) { |
376 | return ENOMEM; |
377 | } |
378 | wantpids = buffersize / sizeof(int); |
379 | if ((nprocs + 20) > 0) { |
380 | numprocs = (uint32_t)(nprocs + 20); |
381 | } |
382 | if (numprocs > wantpids) { |
383 | numprocs = wantpids; |
384 | } |
385 | |
386 | kbuf = (int *)kalloc_data(numprocs * sizeof(int), Z_WAITOK | Z_ZERO); |
387 | if (kbuf == NULL) { |
388 | return ENOMEM; |
389 | } |
390 | |
391 | proc_list_lock(); |
392 | |
393 | n = 0; |
394 | ptr = kbuf; |
395 | current_list = &allproc; |
396 | proc_loop: |
397 | LIST_FOREACH(p, current_list, p_list) { |
398 | if (proc_is_shadow(p)) { |
399 | continue; |
400 | } |
401 | skip = 0; |
402 | switch (type) { |
403 | case PROC_PGRP_ONLY: |
404 | if (p->p_pgrpid != (pid_t)typeinfo) { |
405 | skip = 1; |
406 | } |
407 | break; |
408 | case PROC_PPID_ONLY: |
409 | if ((p->p_ppid != (pid_t)typeinfo) && (((p->p_lflag & P_LTRACED) == 0) || (p->p_oppid != (pid_t)typeinfo))) { |
410 | skip = 1; |
411 | } |
412 | break; |
413 | |
414 | case PROC_ALL_PIDS: |
415 | skip = 0; |
416 | break; |
417 | case PROC_TTY_ONLY: |
418 | if (p->p_flag & P_CONTROLT) { |
419 | struct pgrp *pg = smr_serialized_load(&p->p_pgrp); |
420 | skip = pg != PGRP_NULL && |
421 | os_atomic_load(&pg->pg_session->s_ttydev, relaxed) != (dev_t)typeinfo; |
422 | } else { |
423 | skip = 1; |
424 | } |
425 | break; |
426 | case PROC_UID_ONLY: |
427 | smr_proc_task_enter(); |
428 | cred = proc_ucred_smr(p); |
429 | skip = cred == NOCRED || |
430 | kauth_cred_getuid(cred: cred) != (uid_t)typeinfo; |
431 | smr_proc_task_leave(); |
432 | break; |
433 | case PROC_RUID_ONLY: |
434 | smr_proc_task_enter(); |
435 | cred = proc_ucred_smr(p); |
436 | skip = cred == NOCRED || |
437 | kauth_cred_getruid(cred: cred) != (uid_t)typeinfo; |
438 | smr_proc_task_leave(); |
439 | break; |
440 | case PROC_KDBG_ONLY: |
441 | if (p->p_kdebug == 0) { |
442 | skip = 1; |
443 | } |
444 | break; |
445 | default: |
446 | skip = 1; |
447 | break; |
448 | } |
449 | ; |
450 | |
451 | if (skip == 0) { |
452 | *ptr++ = proc_getpid(p); |
453 | n++; |
454 | } |
455 | if (n >= numprocs) { |
456 | break; |
457 | } |
458 | } |
459 | |
460 | if ((n < numprocs) && (current_list == &allproc)) { |
461 | current_list = &zombproc; |
462 | goto proc_loop; |
463 | } |
464 | |
465 | proc_list_unlock(); |
466 | |
467 | ptr = kbuf; |
468 | error = copyout((caddr_t)ptr, buffer, n * sizeof(int)); |
469 | if (error == 0) { |
470 | *retval = (n * sizeof(int)); |
471 | } |
472 | kfree_data(kbuf, numprocs * sizeof(int)); |
473 | |
474 | return error; |
475 | } |
476 | |
477 | |
478 | /********************************** proc_pidfdlist routines ********************************/ |
479 | |
480 | static size_t |
481 | proc_fdlist_internal(proc_t p, struct proc_fdinfo *pfd, size_t numfds) |
482 | { |
483 | struct fileproc *fp; |
484 | size_t count = 0; |
485 | |
486 | proc_fdlock(p); |
487 | |
488 | fdt_foreach(fp, p) { |
489 | if (count >= numfds) { |
490 | break; |
491 | } |
492 | file_type_t fdtype = FILEGLOB_DTYPE(fp->fp_glob); |
493 | pfd[count].proc_fd = fdt_foreach_fd(); |
494 | pfd[count].proc_fdtype = (fdtype != DTYPE_ATALK) ? |
495 | fdtype : PROX_FDTYPE_ATALK; |
496 | count++; |
497 | } |
498 | |
499 | proc_fdunlock(p); |
500 | return count; |
501 | } |
502 | |
503 | int |
504 | proc_pidfdlist(proc_t p, user_addr_t buffer, uint32_t buffersize, int32_t *retval) |
505 | { |
506 | uint32_t numfds = 0; |
507 | uint32_t needfds; |
508 | char * kbuf; |
509 | uint32_t count = 0; |
510 | int error = 0; |
511 | |
512 | if (p->p_fd.fd_nfiles > 0) { |
513 | numfds = (uint32_t)p->p_fd.fd_nfiles; |
514 | } |
515 | |
516 | if (buffer == (user_addr_t) 0) { |
517 | numfds += 20; |
518 | *retval = (numfds * sizeof(struct proc_fdinfo)); |
519 | return 0; |
520 | } |
521 | |
522 | /* buffersize is big enough atleast for one struct */ |
523 | needfds = buffersize / sizeof(struct proc_fdinfo); |
524 | |
525 | if (numfds > needfds) { |
526 | numfds = needfds; |
527 | } |
528 | |
529 | kbuf = (char *)kalloc_data(numfds * sizeof(struct proc_fdinfo), Z_WAITOK | Z_ZERO); |
530 | if (kbuf == NULL) { |
531 | return ENOMEM; |
532 | } |
533 | |
534 | /* cannot overflow due to count <= numfds */ |
535 | count = (uint32_t)proc_fdlist_internal(p, pfd: (struct proc_fdinfo *)kbuf, numfds: (size_t)numfds); |
536 | |
537 | error = copyout(kbuf, buffer, count * sizeof(struct proc_fdinfo)); |
538 | kfree_data(kbuf, numfds * sizeof(struct proc_fdinfo)); |
539 | if (error == 0) { |
540 | *retval = count * sizeof(struct proc_fdinfo); |
541 | } |
542 | return error; |
543 | } |
544 | |
545 | /* |
546 | * KPI variant of proc_pidfdlist. |
547 | * |
548 | * Caller is responsible for adding margin to *count when calling this in |
549 | * circumstances where file descriptors can appear/disappear between the |
550 | * two calls to this function. |
551 | */ |
552 | int |
553 | proc_fdlist(proc_t p, struct proc_fdinfo *buf, size_t *count) |
554 | { |
555 | if (p == NULL || count == NULL) { |
556 | return EINVAL; |
557 | } |
558 | |
559 | if (buf == NULL) { |
560 | proc_fdlock(p); |
561 | *count = (size_t)p->p_fd.fd_afterlast; |
562 | proc_fdunlock(p); |
563 | return 0; |
564 | } |
565 | |
566 | *count = proc_fdlist_internal(p, pfd: buf, numfds: *count); |
567 | return 0; |
568 | } |
569 | |
570 | int |
571 | proc_pidfileportlist(proc_t p, |
572 | user_addr_t buffer, size_t buffersize, int32_t *retval) |
573 | { |
574 | void *kbuf; |
575 | size_t kbufsize; |
576 | struct proc_fileportinfo *pfi; |
577 | size_t needfileports, numfileports; |
578 | int error; |
579 | kern_return_t kr; |
580 | |
581 | needfileports = buffersize / sizeof(*pfi); |
582 | if ((user_addr_t)0 == buffer || needfileports > (size_t)maxfilesperproc) { |
583 | /* |
584 | * Either (i) the user is asking for a fileport count, |
585 | * or (ii) the number of fileports they're asking for is |
586 | * larger than the maximum number of open files (!); count |
587 | * them to bound subsequent heap allocations. |
588 | */ |
589 | numfileports = 0; |
590 | switch (fileport_walk(proc_task(p), count: &numfileports, NULL)) { |
591 | case KERN_SUCCESS: |
592 | break; |
593 | case KERN_RESOURCE_SHORTAGE: |
594 | return ENOMEM; |
595 | case KERN_INVALID_TASK: |
596 | return ESRCH; |
597 | default: |
598 | return EINVAL; |
599 | } |
600 | |
601 | if (numfileports == 0) { |
602 | *retval = 0; /* none at all, bail */ |
603 | return 0; |
604 | } |
605 | if ((user_addr_t)0 == buffer) { |
606 | numfileports += 20; /* accelerate convergence */ |
607 | *retval = (int32_t)MIN(numfileports * sizeof(*pfi), INT32_MAX); |
608 | return 0; |
609 | } |
610 | if (needfileports > numfileports) { |
611 | needfileports = numfileports; |
612 | } |
613 | } |
614 | |
615 | assert(buffersize >= PROC_PIDLISTFILEPORTS_SIZE); |
616 | |
617 | kbufsize = needfileports * sizeof(*pfi); |
618 | pfi = kbuf = kalloc_data(kbufsize, Z_WAITOK | Z_ZERO); |
619 | if (kbuf == NULL) { |
620 | return ENOMEM; |
621 | } |
622 | |
623 | kr = fileport_walk(proc_task(p), count: &numfileports, |
624 | cb: ^bool (size_t i, mach_port_name_t name, struct fileglob *fg) { |
625 | if (i < needfileports) { |
626 | file_type_t fdtype = FILEGLOB_DTYPE(fg); |
627 | |
628 | pfi[i].proc_fdtype = (fdtype != DTYPE_ATALK) ? |
629 | fdtype : PROX_FDTYPE_ATALK; |
630 | pfi[i].proc_fileport = name; |
631 | return true; |
632 | } |
633 | return false; /* stop walking */ |
634 | }); |
635 | switch (kr) { |
636 | case KERN_SUCCESS: |
637 | if (numfileports) { |
638 | if (numfileports > needfileports) { |
639 | numfileports = needfileports; |
640 | } |
641 | error = copyout(kbuf, buffer, numfileports * sizeof(*pfi)); |
642 | } else { |
643 | error = 0; |
644 | } |
645 | break; |
646 | case KERN_RESOURCE_SHORTAGE: |
647 | error = ENOMEM; |
648 | break; |
649 | case KERN_INVALID_TASK: |
650 | error = ESRCH; |
651 | break; |
652 | default: |
653 | error = EINVAL; |
654 | break; |
655 | } |
656 | |
657 | kfree_data(kbuf, kbufsize); |
658 | if (error == 0) { |
659 | *retval = (int32_t)MIN(numfileports * sizeof(*pfi), INT32_MAX); |
660 | } |
661 | return error; |
662 | } |
663 | |
664 | int |
665 | proc_pidbsdinfo(proc_t p, struct proc_bsdinfo * pbsd, int zombie) |
666 | { |
667 | struct pgrp *pg; |
668 | struct session *sessp; |
669 | kauth_cred_t my_cred; |
670 | |
671 | pg = proc_pgrp(p, &sessp); |
672 | |
673 | smr_proc_task_enter(); |
674 | |
675 | my_cred = proc_ucred_smr(p); |
676 | |
677 | bzero(s: pbsd, n: sizeof(struct proc_bsdinfo)); |
678 | pbsd->pbi_status = p->p_stat; |
679 | pbsd->pbi_xstatus = p->p_xstat; |
680 | pbsd->pbi_pid = proc_getpid(p); |
681 | pbsd->pbi_ppid = p->p_ppid; |
682 | pbsd->pbi_uid = kauth_cred_getuid(cred: my_cred); |
683 | pbsd->pbi_gid = kauth_cred_getgid(cred: my_cred); |
684 | pbsd->pbi_ruid = kauth_cred_getruid(cred: my_cred); |
685 | pbsd->pbi_rgid = kauth_cred_getrgid(cred: my_cred); |
686 | pbsd->pbi_svuid = kauth_cred_getsvuid(cred: my_cred); |
687 | pbsd->pbi_svgid = kauth_cred_getsvgid(cred: my_cred); |
688 | |
689 | my_cred = NOCRED; |
690 | smr_proc_task_leave(); |
691 | |
692 | pbsd->pbi_nice = p->p_nice; |
693 | pbsd->pbi_start_tvsec = p->p_start.tv_sec; |
694 | pbsd->pbi_start_tvusec = p->p_start.tv_usec; |
695 | bcopy(src: &p->p_comm, dst: &pbsd->pbi_comm[0], MAXCOMLEN); |
696 | pbsd->pbi_comm[MAXCOMLEN - 1] = '\0'; |
697 | bcopy(src: &p->p_name, dst: &pbsd->pbi_name[0], n: 2 * MAXCOMLEN); |
698 | pbsd->pbi_name[(2 * MAXCOMLEN) - 1] = '\0'; |
699 | |
700 | pbsd->pbi_flags = 0; |
701 | if ((p->p_flag & P_SYSTEM) == P_SYSTEM) { |
702 | pbsd->pbi_flags |= PROC_FLAG_SYSTEM; |
703 | } |
704 | if ((p->p_lflag & P_LTRACED) == P_LTRACED) { |
705 | pbsd->pbi_flags |= PROC_FLAG_TRACED; |
706 | } |
707 | if ((p->p_lflag & P_LEXIT) == P_LEXIT) { |
708 | pbsd->pbi_flags |= PROC_FLAG_INEXIT; |
709 | } |
710 | if ((p->p_lflag & P_LPPWAIT) == P_LPPWAIT) { |
711 | pbsd->pbi_flags |= PROC_FLAG_PPWAIT; |
712 | } |
713 | if ((p->p_flag & P_LP64) == P_LP64) { |
714 | pbsd->pbi_flags |= PROC_FLAG_LP64; |
715 | } |
716 | if ((p->p_flag & P_CONTROLT) == P_CONTROLT) { |
717 | pbsd->pbi_flags |= PROC_FLAG_CONTROLT; |
718 | } |
719 | if ((p->p_flag & P_THCWD) == P_THCWD) { |
720 | pbsd->pbi_flags |= PROC_FLAG_THCWD; |
721 | } |
722 | if ((p->p_flag & P_SUGID) == P_SUGID) { |
723 | pbsd->pbi_flags |= PROC_FLAG_PSUGID; |
724 | } |
725 | if ((p->p_flag & P_EXEC) == P_EXEC) { |
726 | pbsd->pbi_flags |= PROC_FLAG_EXEC; |
727 | } |
728 | if ((p->p_flag & P_TRANSLATED) == P_TRANSLATED) { |
729 | pbsd->pbi_flags |= PROC_FLAG_ROSETTA; |
730 | } |
731 | |
732 | if (pg != PGRP_NULL) { |
733 | if (SESS_LEADER(p, pg->pg_session)) { |
734 | pbsd->pbi_flags |= PROC_FLAG_SLEADER; |
735 | } |
736 | if (pg->pg_session->s_ttyvp) { |
737 | pbsd->pbi_flags |= PROC_FLAG_CTTY; |
738 | } |
739 | } |
740 | |
741 | #if CONFIG_DELAY_IDLE_SLEEP |
742 | if ((p->p_flag & P_DELAYIDLESLEEP) == P_DELAYIDLESLEEP) { |
743 | pbsd->pbi_flags |= PROC_FLAG_DELAYIDLESLEEP; |
744 | } |
745 | #endif /* CONFIG_DELAY_IDLE_SLEEP */ |
746 | |
747 | switch (PROC_CONTROL_STATE(p)) { |
748 | case P_PCTHROTTLE: |
749 | pbsd->pbi_flags |= PROC_FLAG_PC_THROTTLE; |
750 | break; |
751 | case P_PCSUSP: |
752 | pbsd->pbi_flags |= PROC_FLAG_PC_SUSP; |
753 | break; |
754 | case P_PCKILL: |
755 | pbsd->pbi_flags |= PROC_FLAG_PC_KILL; |
756 | break; |
757 | } |
758 | ; |
759 | |
760 | switch (PROC_ACTION_STATE(p)) { |
761 | case P_PCTHROTTLE: |
762 | pbsd->pbi_flags |= PROC_FLAG_PA_THROTTLE; |
763 | break; |
764 | case P_PCSUSP: |
765 | pbsd->pbi_flags |= PROC_FLAG_PA_SUSP; |
766 | break; |
767 | } |
768 | ; |
769 | |
770 | /* if process is a zombie skip bg state */ |
771 | if ((zombie == 0) && (p->p_stat != SZOMB) && (proc_task(p) != TASK_NULL)) { |
772 | proc_get_darwinbgstate(task: proc_task(p), flagsp: &pbsd->pbi_flags); |
773 | } |
774 | |
775 | if (zombie == 0) { |
776 | pbsd->pbi_nfiles = p->p_fd.fd_nfiles; |
777 | } |
778 | |
779 | pbsd->e_tdev = NODEV; |
780 | if (sessp != SESSION_NULL) { |
781 | pbsd->pbi_pgid = p->p_pgrpid; |
782 | pbsd->pbi_pjobc = pg->pg_jobc; |
783 | if (p->p_flag & P_CONTROLT) { |
784 | session_lock(sess: sessp); |
785 | pbsd->e_tdev = os_atomic_load(&sessp->s_ttydev, relaxed); |
786 | pbsd->e_tpgid = sessp->s_ttypgrpid; |
787 | session_unlock(sess: sessp); |
788 | } |
789 | } |
790 | |
791 | pgrp_rele(pgrp: pg); |
792 | |
793 | return 0; |
794 | } |
795 | |
796 | |
797 | int |
798 | proc_pidshortbsdinfo(proc_t p, struct proc_bsdshortinfo * pbsd_shortp, int zombie) |
799 | { |
800 | bzero(s: pbsd_shortp, n: sizeof(struct proc_bsdshortinfo)); |
801 | pbsd_shortp->pbsi_pid = proc_getpid(p); |
802 | pbsd_shortp->pbsi_ppid = p->p_ppid; |
803 | pbsd_shortp->pbsi_pgid = p->p_pgrpid; |
804 | pbsd_shortp->pbsi_status = p->p_stat; |
805 | bcopy(src: &p->p_comm, dst: &pbsd_shortp->pbsi_comm[0], MAXCOMLEN); |
806 | pbsd_shortp->pbsi_comm[MAXCOMLEN - 1] = '\0'; |
807 | |
808 | pbsd_shortp->pbsi_flags = 0; |
809 | if ((p->p_flag & P_SYSTEM) == P_SYSTEM) { |
810 | pbsd_shortp->pbsi_flags |= PROC_FLAG_SYSTEM; |
811 | } |
812 | if ((p->p_lflag & P_LTRACED) == P_LTRACED) { |
813 | pbsd_shortp->pbsi_flags |= PROC_FLAG_TRACED; |
814 | } |
815 | if ((p->p_lflag & P_LEXIT) == P_LEXIT) { |
816 | pbsd_shortp->pbsi_flags |= PROC_FLAG_INEXIT; |
817 | } |
818 | if ((p->p_lflag & P_LPPWAIT) == P_LPPWAIT) { |
819 | pbsd_shortp->pbsi_flags |= PROC_FLAG_PPWAIT; |
820 | } |
821 | if ((p->p_flag & P_LP64) == P_LP64) { |
822 | pbsd_shortp->pbsi_flags |= PROC_FLAG_LP64; |
823 | } |
824 | if ((p->p_flag & P_CONTROLT) == P_CONTROLT) { |
825 | pbsd_shortp->pbsi_flags |= PROC_FLAG_CONTROLT; |
826 | } |
827 | if ((p->p_flag & P_THCWD) == P_THCWD) { |
828 | pbsd_shortp->pbsi_flags |= PROC_FLAG_THCWD; |
829 | } |
830 | if ((p->p_flag & P_SUGID) == P_SUGID) { |
831 | pbsd_shortp->pbsi_flags |= PROC_FLAG_PSUGID; |
832 | } |
833 | if ((p->p_flag & P_EXEC) == P_EXEC) { |
834 | pbsd_shortp->pbsi_flags |= PROC_FLAG_EXEC; |
835 | } |
836 | if ((p->p_flag & P_TRANSLATED) == P_TRANSLATED) { |
837 | pbsd_shortp->pbsi_flags |= PROC_FLAG_ROSETTA; |
838 | } |
839 | #if CONFIG_DELAY_IDLE_SLEEP |
840 | if ((p->p_flag & P_DELAYIDLESLEEP) == P_DELAYIDLESLEEP) { |
841 | pbsd_shortp->pbsi_flags |= PROC_FLAG_DELAYIDLESLEEP; |
842 | } |
843 | #endif /* CONFIG_DELAY_IDLE_SLEEP */ |
844 | |
845 | switch (PROC_CONTROL_STATE(p)) { |
846 | case P_PCTHROTTLE: |
847 | pbsd_shortp->pbsi_flags |= PROC_FLAG_PC_THROTTLE; |
848 | break; |
849 | case P_PCSUSP: |
850 | pbsd_shortp->pbsi_flags |= PROC_FLAG_PC_SUSP; |
851 | break; |
852 | case P_PCKILL: |
853 | pbsd_shortp->pbsi_flags |= PROC_FLAG_PC_KILL; |
854 | break; |
855 | } |
856 | ; |
857 | |
858 | switch (PROC_ACTION_STATE(p)) { |
859 | case P_PCTHROTTLE: |
860 | pbsd_shortp->pbsi_flags |= PROC_FLAG_PA_THROTTLE; |
861 | break; |
862 | case P_PCSUSP: |
863 | pbsd_shortp->pbsi_flags |= PROC_FLAG_PA_SUSP; |
864 | break; |
865 | } |
866 | ; |
867 | |
868 | /* if process is a zombie skip bg state */ |
869 | if ((zombie == 0) && (p->p_stat != SZOMB) && (proc_task(p) != TASK_NULL)) { |
870 | proc_get_darwinbgstate(task: proc_task(p), flagsp: &pbsd_shortp->pbsi_flags); |
871 | } |
872 | |
873 | pbsd_shortp->pbsi_uid = p->p_uid; |
874 | pbsd_shortp->pbsi_gid = p->p_gid; |
875 | pbsd_shortp->pbsi_ruid = p->p_ruid; |
876 | pbsd_shortp->pbsi_rgid = p->p_rgid; |
877 | pbsd_shortp->pbsi_svuid = p->p_svuid; |
878 | pbsd_shortp->pbsi_svgid = p->p_svgid; |
879 | |
880 | return 0; |
881 | } |
882 | |
883 | int |
884 | proc_pidtaskinfo(proc_t p, struct proc_taskinfo * ptinfo) |
885 | { |
886 | task_t task; |
887 | |
888 | task = proc_task(p); |
889 | |
890 | bzero(s: ptinfo, n: sizeof(struct proc_taskinfo)); |
891 | fill_taskprocinfo(task, ptinfo: (struct proc_taskinfo_internal *)ptinfo); |
892 | |
893 | return 0; |
894 | } |
895 | |
896 | int |
897 | proc_pidthreadinfo(proc_t p, uint64_t arg, bool thuniqueid, struct proc_threadinfo *pthinfo) |
898 | { |
899 | int error = 0; |
900 | uint64_t threadaddr = (uint64_t)arg; |
901 | |
902 | bzero(s: pthinfo, n: sizeof(struct proc_threadinfo)); |
903 | |
904 | error = fill_taskthreadinfo(task: proc_task(p), thaddr: threadaddr, thuniqueid, ptinfo: (struct proc_threadinfo_internal *)pthinfo, NULL, NULL); |
905 | if (error) { |
906 | return ESRCH; |
907 | } else { |
908 | return 0; |
909 | } |
910 | } |
911 | |
912 | boolean_t |
913 | bsd_hasthreadname(void *uth) |
914 | { |
915 | struct uthread *ut = (struct uthread*)uth; |
916 | |
917 | /* This doesn't check for the empty string; do we care? */ |
918 | if (ut->pth_name) { |
919 | return TRUE; |
920 | } else { |
921 | return FALSE; |
922 | } |
923 | } |
924 | |
925 | void |
926 | bsd_getthreadname(void *uth, char *buffer) |
927 | { |
928 | struct uthread *ut = (struct uthread *)uth; |
929 | if (ut->pth_name) { |
930 | bcopy(src: ut->pth_name, dst: buffer, MAXTHREADNAMESIZE); |
931 | } else { |
932 | *buffer = '\0'; |
933 | } |
934 | } |
935 | |
936 | /* |
937 | * This is known to race with regards to the contents of the thread name; concurrent |
938 | * callers may result in a garbled name. |
939 | */ |
940 | void |
941 | bsd_setthreadname(void *uth, uint64_t tid, const char *name) |
942 | { |
943 | struct uthread *ut = (struct uthread *)uth; |
944 | char * name_buf = NULL; |
945 | uint64_t current_tid = thread_tid(thread: current_thread()); |
946 | |
947 | if (!ut->pth_name) { |
948 | /* If there is no existing thread name, allocate a buffer for one. */ |
949 | name_buf = kalloc_data(MAXTHREADNAMESIZE, |
950 | Z_WAITOK | Z_ZERO | Z_NOFAIL); |
951 | |
952 | /* Someone could conceivably have named the thread at the same time we did. */ |
953 | if (!OSCompareAndSwapPtr(NULL, name_buf, &ut->pth_name)) { |
954 | kfree_data(name_buf, MAXTHREADNAMESIZE); |
955 | } |
956 | } else { |
957 | /* |
958 | * Simple strings lack a way to identify the thread being named, |
959 | * so only emit this if the current thread is renaming itself. |
960 | */ |
961 | if (tid == current_tid) { |
962 | kernel_debug_string_simple(TRACE_STRING_THREADNAME_PREV, str: ut->pth_name); |
963 | } |
964 | } |
965 | |
966 | strncpy(ut->pth_name, name, MAXTHREADNAMESIZE - 1); |
967 | if (tid == current_tid) { |
968 | kernel_debug_string_simple(TRACE_STRING_THREADNAME, str: ut->pth_name); |
969 | } |
970 | } |
971 | |
972 | void |
973 | bsd_copythreadname(void *dst_uth, void *src_uth) |
974 | { |
975 | struct uthread *dst_ut = (struct uthread *)dst_uth; |
976 | struct uthread *src_ut = (struct uthread *)src_uth; |
977 | |
978 | if (src_ut->pth_name == NULL) { |
979 | return; |
980 | } |
981 | |
982 | if (dst_ut->pth_name == NULL) { |
983 | dst_ut->pth_name = (char *)kalloc_data(MAXTHREADNAMESIZE, Z_WAITOK); |
984 | if (dst_ut->pth_name == NULL) { |
985 | return; |
986 | } |
987 | } |
988 | |
989 | bcopy(src: src_ut->pth_name, dst: dst_ut->pth_name, MAXTHREADNAMESIZE); |
990 | return; |
991 | } |
992 | |
993 | void |
994 | bsd_threadcdir(void * uth, void *vptr, int *vidp) |
995 | { |
996 | struct uthread * ut = (struct uthread *)uth; |
997 | vnode_t vp; |
998 | vnode_t *vpp = (vnode_t *)vptr; |
999 | |
1000 | vp = ut->uu_cdir; |
1001 | if (vp != NULLVP) { |
1002 | if (vpp != NULL) { |
1003 | *vpp = vp; |
1004 | if (vidp != NULL) { |
1005 | *vidp = vp->v_id; |
1006 | } |
1007 | } |
1008 | } |
1009 | } |
1010 | |
1011 | |
1012 | int |
1013 | proc_pidthreadpathinfo(proc_t p, uint64_t arg, struct proc_threadwithpathinfo *pinfo) |
1014 | { |
1015 | vnode_t vp = NULLVP; |
1016 | int vid; |
1017 | int error = 0; |
1018 | uint64_t threadaddr = (uint64_t)arg; |
1019 | int count; |
1020 | |
1021 | bzero(s: pinfo, n: sizeof(struct proc_threadwithpathinfo)); |
1022 | |
1023 | error = fill_taskthreadinfo(task: proc_task(p), thaddr: threadaddr, thuniqueid: 0, ptinfo: (struct proc_threadinfo_internal *)&pinfo->pt, (void *)&vp, &vid); |
1024 | if (error) { |
1025 | return ESRCH; |
1026 | } |
1027 | |
1028 | if ((vp != NULLVP) && ((vnode_getwithvid(vp, vid)) == 0)) { |
1029 | error = fill_vnodeinfo(vp, vinfo: &pinfo->pvip.vip_vi, FALSE); |
1030 | if (error == 0) { |
1031 | count = MAXPATHLEN; |
1032 | vn_getpath(vp, pathbuf: &pinfo->pvip.vip_path[0], len: &count); |
1033 | pinfo->pvip.vip_path[MAXPATHLEN - 1] = 0; |
1034 | } |
1035 | vnode_put(vp); |
1036 | } |
1037 | return error; |
1038 | } |
1039 | |
1040 | |
1041 | |
1042 | int |
1043 | proc_pidlistthreads(proc_t p, bool thuniqueid, user_addr_t buffer, uint32_t buffersize, int32_t *retval) |
1044 | { |
1045 | uint32_t count = 0; |
1046 | int ret = 0; |
1047 | int error = 0; |
1048 | void * kbuf; |
1049 | uint32_t numthreads = 0; |
1050 | |
1051 | int num = get_numthreads(proc_task(p)) + 10; |
1052 | if (num > 0) { |
1053 | numthreads = (uint32_t)num; |
1054 | } |
1055 | |
1056 | count = buffersize / (sizeof(uint64_t)); |
1057 | |
1058 | if (numthreads > count) { |
1059 | numthreads = count; |
1060 | } |
1061 | |
1062 | kbuf = kalloc_data(numthreads * sizeof(uint64_t), Z_WAITOK | Z_ZERO); |
1063 | if (kbuf == NULL) { |
1064 | return ENOMEM; |
1065 | } |
1066 | |
1067 | ret = fill_taskthreadlist(task: proc_task(p), buffer: kbuf, thcount: numthreads, thuniqueid); |
1068 | |
1069 | error = copyout(kbuf, buffer, ret); |
1070 | kfree_data(kbuf, numthreads * sizeof(uint64_t)); |
1071 | if (error == 0) { |
1072 | *retval = ret; |
1073 | } |
1074 | return error; |
1075 | } |
1076 | |
1077 | |
1078 | int |
1079 | proc_pidregioninfo(proc_t p, uint64_t arg, user_addr_t buffer, __unused uint32_t buffersize, int32_t *retval) |
1080 | { |
1081 | struct proc_regioninfo preginfo; |
1082 | int ret, error = 0; |
1083 | |
1084 | bzero(s: &preginfo, n: sizeof(struct proc_regioninfo)); |
1085 | ret = fill_procregioninfo(t: proc_task(p), arg, pinfo: (struct proc_regioninfo_internal *)&preginfo, vp: (uintptr_t *)0, vid: (uint32_t *)0); |
1086 | if (ret == 0) { |
1087 | return EINVAL; |
1088 | } |
1089 | error = copyout(&preginfo, buffer, sizeof(struct proc_regioninfo)); |
1090 | if (error == 0) { |
1091 | *retval = sizeof(struct proc_regioninfo); |
1092 | } |
1093 | return error; |
1094 | } |
1095 | |
1096 | |
1097 | int |
1098 | proc_pidregionpathinfo(proc_t p, uint64_t arg, user_addr_t buffer, __unused uint32_t buffersize, int32_t *retval) |
1099 | { |
1100 | struct proc_regionwithpathinfo preginfo; |
1101 | int ret, error = 0; |
1102 | uintptr_t vnodeaddr = 0; |
1103 | uint32_t vnodeid = 0; |
1104 | vnode_t vp; |
1105 | int count; |
1106 | |
1107 | bzero(s: &preginfo, n: sizeof(struct proc_regionwithpathinfo)); |
1108 | |
1109 | ret = fill_procregioninfo(t: proc_task(p), arg, pinfo: (struct proc_regioninfo_internal *)&preginfo.prp_prinfo, vp: (uintptr_t *)&vnodeaddr, vid: (uint32_t *)&vnodeid); |
1110 | if (ret == 0) { |
1111 | return EINVAL; |
1112 | } |
1113 | if (vnodeaddr) { |
1114 | vp = (vnode_t)vnodeaddr; |
1115 | if ((vnode_getwithvid(vp, vnodeid)) == 0) { |
1116 | /* FILL THE VNODEINFO */ |
1117 | error = fill_vnodeinfo(vp, vinfo: &preginfo.prp_vip.vip_vi, FALSE); |
1118 | count = MAXPATHLEN; |
1119 | vn_getpath(vp, pathbuf: &preginfo.prp_vip.vip_path[0], len: &count); |
1120 | /* Always make sure it is null terminated */ |
1121 | preginfo.prp_vip.vip_path[MAXPATHLEN - 1] = 0; |
1122 | vnode_put(vp); |
1123 | } |
1124 | } |
1125 | error = copyout(&preginfo, buffer, sizeof(struct proc_regionwithpathinfo)); |
1126 | if (error == 0) { |
1127 | *retval = sizeof(struct proc_regionwithpathinfo); |
1128 | } |
1129 | return error; |
1130 | } |
1131 | |
1132 | int |
1133 | proc_pidregionpathinfo2(proc_t p, uint64_t arg, user_addr_t buffer, __unused uint32_t buffersize, int32_t *retval) |
1134 | { |
1135 | struct proc_regionwithpathinfo preginfo; |
1136 | int ret, error = 0; |
1137 | uintptr_t vnodeaddr = 0; |
1138 | uint32_t vnodeid = 0; |
1139 | vnode_t vp; |
1140 | int count; |
1141 | |
1142 | bzero(s: &preginfo, n: sizeof(struct proc_regionwithpathinfo)); |
1143 | |
1144 | ret = fill_procregioninfo_onlymappedvnodes(t: proc_task(p), arg, pinfo: (struct proc_regioninfo_internal *)&preginfo.prp_prinfo, vp: (uintptr_t *)&vnodeaddr, vid: (uint32_t *)&vnodeid); |
1145 | if (ret == 0) { |
1146 | return EINVAL; |
1147 | } |
1148 | if (!vnodeaddr) { |
1149 | return EINVAL; |
1150 | } |
1151 | |
1152 | vp = (vnode_t)vnodeaddr; |
1153 | if ((vnode_getwithvid(vp, vnodeid)) == 0) { |
1154 | /* FILL THE VNODEINFO */ |
1155 | error = fill_vnodeinfo(vp, vinfo: &preginfo.prp_vip.vip_vi, FALSE); |
1156 | count = MAXPATHLEN; |
1157 | vn_getpath(vp, pathbuf: &preginfo.prp_vip.vip_path[0], len: &count); |
1158 | /* Always make sure it is null terminated */ |
1159 | preginfo.prp_vip.vip_path[MAXPATHLEN - 1] = 0; |
1160 | vnode_put(vp); |
1161 | } else { |
1162 | return EINVAL; |
1163 | } |
1164 | |
1165 | error = copyout(&preginfo, buffer, sizeof(struct proc_regionwithpathinfo)); |
1166 | if (error == 0) { |
1167 | *retval = sizeof(struct proc_regionwithpathinfo); |
1168 | } |
1169 | return error; |
1170 | } |
1171 | |
1172 | int |
1173 | proc_pidregionpath(proc_t p, uint64_t arg, user_addr_t buffer, __unused uint32_t buffersize, int32_t *retval) |
1174 | { |
1175 | struct proc_regionpath path = {}; |
1176 | int ret, error = 0; |
1177 | uintptr_t vnodeaddr = 0; |
1178 | uint32_t vnodeid = 0; |
1179 | vnode_t vp; |
1180 | |
1181 | ret = find_region_details(task: proc_task(p), offset: (vm_map_offset_t) arg, |
1182 | vnodeaddr: (uintptr_t *)&vnodeaddr, vid: (uint32_t *)&vnodeid, |
1183 | start: &path.prpo_addr, len: &path.prpo_regionlength); |
1184 | if (ret == 0) { |
1185 | return EINVAL; |
1186 | } |
1187 | if (!vnodeaddr) { |
1188 | return EINVAL; |
1189 | } |
1190 | |
1191 | vp = (vnode_t)vnodeaddr; |
1192 | if ((vnode_getwithvid(vp, vnodeid)) == 0) { |
1193 | int count = MAXPATHLEN; |
1194 | vn_getpath(vp, pathbuf: &path.prpo_path[0], len: &count); |
1195 | /* Always make sure it is null terminated */ |
1196 | path.prpo_path[MAXPATHLEN - 1] = 0; |
1197 | vnode_put(vp); |
1198 | } else { |
1199 | return EINVAL; |
1200 | } |
1201 | |
1202 | error = copyout(&path, buffer, sizeof(struct proc_regionpath)); |
1203 | if (error == 0) { |
1204 | *retval = sizeof(struct proc_regionpath); |
1205 | } |
1206 | return error; |
1207 | } |
1208 | |
1209 | int |
1210 | proc_pidregionpathinfo3(proc_t p, uint64_t arg, user_addr_t buffer, __unused uint32_t buffersize, int32_t *retval) |
1211 | { |
1212 | struct proc_regionwithpathinfo preginfo; |
1213 | int ret, error = 0; |
1214 | uintptr_t vnodeaddr; |
1215 | uint32_t vnodeid; |
1216 | vnode_t vp; |
1217 | int count; |
1218 | uint64_t addr = 0; |
1219 | |
1220 | /* Loop while looking for vnodes that match dev_t filter */ |
1221 | do { |
1222 | bzero(s: &preginfo, n: sizeof(struct proc_regionwithpathinfo)); |
1223 | vnodeaddr = 0; |
1224 | vnodeid = 0; |
1225 | |
1226 | ret = fill_procregioninfo_onlymappedvnodes(t: proc_task(p), arg: addr, pinfo: (struct proc_regioninfo_internal *)&preginfo.prp_prinfo, vp: (uintptr_t *)&vnodeaddr, vid: (uint32_t *)&vnodeid); |
1227 | if (ret == 0) { |
1228 | return EINVAL; |
1229 | } |
1230 | if (!vnodeaddr) { |
1231 | return EINVAL; |
1232 | } |
1233 | |
1234 | vp = (vnode_t)vnodeaddr; |
1235 | if ((vnode_getwithvid(vp, vnodeid)) == 0) { |
1236 | /* Check if the vnode matches the filter, otherwise loop looking for the next memory region backed by a vnode */ |
1237 | struct vnode_attr va; |
1238 | |
1239 | memset(s: &va, c: 0, n: sizeof(va)); |
1240 | VATTR_INIT(&va); |
1241 | VATTR_WANTED(&va, va_fsid); |
1242 | VATTR_WANTED(&va, va_fsid64); |
1243 | |
1244 | ret = vnode_getattr(vp, vap: &va, ctx: vfs_context_current()); |
1245 | if (ret) { |
1246 | vnode_put(vp); |
1247 | return EINVAL; |
1248 | } |
1249 | |
1250 | if (vnode_get_va_fsid(vap: &va) == arg) { |
1251 | /* FILL THE VNODEINFO */ |
1252 | error = fill_vnodeinfo(vp, vinfo: &preginfo.prp_vip.vip_vi, FALSE); |
1253 | count = MAXPATHLEN; |
1254 | vn_getpath(vp, pathbuf: &preginfo.prp_vip.vip_path[0], len: &count); |
1255 | /* Always make sure it is null terminated */ |
1256 | preginfo.prp_vip.vip_path[MAXPATHLEN - 1] = 0; |
1257 | vnode_put(vp); |
1258 | break; |
1259 | } |
1260 | vnode_put(vp); |
1261 | } else { |
1262 | return EINVAL; |
1263 | } |
1264 | |
1265 | addr = preginfo.prp_prinfo.pri_address + preginfo.prp_prinfo.pri_size; |
1266 | } while (1); |
1267 | |
1268 | error = copyout(&preginfo, buffer, sizeof(struct proc_regionwithpathinfo)); |
1269 | if (error == 0) { |
1270 | *retval = sizeof(struct proc_regionwithpathinfo); |
1271 | } |
1272 | return error; |
1273 | } |
1274 | |
1275 | /* |
1276 | * Path is relative to current process directory; may different from current |
1277 | * thread directory. |
1278 | */ |
1279 | int |
1280 | proc_pidvnodepathinfo(proc_t p, __unused uint64_t arg, user_addr_t buffer, __unused uint32_t buffersize, int32_t *retval) |
1281 | { |
1282 | struct proc_vnodepathinfo pvninfo; |
1283 | int error = 0; |
1284 | vnode_t vncdirvp = NULLVP; |
1285 | uint32_t vncdirid = 0; |
1286 | vnode_t vnrdirvp = NULLVP; |
1287 | uint32_t vnrdirid = 0; |
1288 | int count; |
1289 | |
1290 | bzero(s: &pvninfo, n: sizeof(struct proc_vnodepathinfo)); |
1291 | |
1292 | proc_fdlock(p); |
1293 | if (p->p_fd.fd_cdir) { |
1294 | vncdirvp = p->p_fd.fd_cdir; |
1295 | vncdirid = p->p_fd.fd_cdir->v_id; |
1296 | } |
1297 | if (p->p_fd.fd_rdir) { |
1298 | vnrdirvp = p->p_fd.fd_rdir; |
1299 | vnrdirid = p->p_fd.fd_rdir->v_id; |
1300 | } |
1301 | proc_fdunlock(p); |
1302 | |
1303 | if (vncdirvp != NULLVP) { |
1304 | if ((error = vnode_getwithvid(vncdirvp, vncdirid)) == 0) { |
1305 | /* FILL THE VNODEINFO */ |
1306 | error = fill_vnodeinfo(vp: vncdirvp, vinfo: &pvninfo.pvi_cdir.vip_vi, TRUE); |
1307 | if (error == 0) { |
1308 | count = MAXPATHLEN; |
1309 | vn_getpath(vp: vncdirvp, pathbuf: &pvninfo.pvi_cdir.vip_path[0], len: &count); |
1310 | pvninfo.pvi_cdir.vip_path[MAXPATHLEN - 1] = 0; |
1311 | } |
1312 | vnode_put(vp: vncdirvp); |
1313 | } else { |
1314 | goto out; |
1315 | } |
1316 | } |
1317 | |
1318 | if ((error == 0) && (vnrdirvp != NULLVP)) { |
1319 | if ((error = vnode_getwithvid(vnrdirvp, vnrdirid)) == 0) { |
1320 | /* FILL THE VNODEINFO */ |
1321 | error = fill_vnodeinfo(vp: vnrdirvp, vinfo: &pvninfo.pvi_rdir.vip_vi, TRUE); |
1322 | if (error == 0) { |
1323 | count = MAXPATHLEN; |
1324 | vn_getpath(vp: vnrdirvp, pathbuf: &pvninfo.pvi_rdir.vip_path[0], len: &count); |
1325 | pvninfo.pvi_rdir.vip_path[MAXPATHLEN - 1] = 0; |
1326 | } |
1327 | vnode_put(vp: vnrdirvp); |
1328 | } else { |
1329 | goto out; |
1330 | } |
1331 | } |
1332 | if (error == 0) { |
1333 | error = copyout(&pvninfo, buffer, sizeof(struct proc_vnodepathinfo)); |
1334 | if (error == 0) { |
1335 | *retval = sizeof(struct proc_vnodepathinfo); |
1336 | } |
1337 | } |
1338 | out: |
1339 | return error; |
1340 | } |
1341 | |
1342 | int |
1343 | proc_pidpathinfo(proc_t p, __unused uint64_t arg, user_addr_t buffer, uint32_t buffersize, __unused int32_t *retval) |
1344 | { |
1345 | int error; |
1346 | vnode_t tvp; |
1347 | int len = buffersize; |
1348 | char * buf; |
1349 | |
1350 | tvp = p->p_textvp; |
1351 | |
1352 | if (tvp == NULLVP) { |
1353 | return ESRCH; |
1354 | } |
1355 | |
1356 | buf = (char *)kalloc_data(buffersize, Z_WAITOK | Z_ZERO); |
1357 | if (buf == NULL) { |
1358 | return ENOMEM; |
1359 | } |
1360 | |
1361 | error = proc_pidpathinfo_internal(p, arg, buf, buffersize, retval); |
1362 | if (error == 0) { |
1363 | error = copyout(buf, buffer, len); |
1364 | } |
1365 | kfree_data(buf, buffersize); |
1366 | return error; |
1367 | } |
1368 | |
1369 | int |
1370 | proc_pidpathinfo_internal(proc_t p, __unused uint64_t arg, char *buf, uint32_t buffersize, __unused int32_t *retval) |
1371 | { |
1372 | vnode_t tvp; |
1373 | int vid, error; |
1374 | int len = buffersize; |
1375 | |
1376 | tvp = p->p_textvp; |
1377 | |
1378 | if (tvp == NULLVP) { |
1379 | return ESRCH; |
1380 | } |
1381 | |
1382 | vid = vnode_vid(vp: tvp); |
1383 | error = vnode_getwithvid(tvp, vid); |
1384 | if (error == 0) { |
1385 | error = vn_getpath_fsenter(vp: tvp, pathbuf: buf, len: &len); |
1386 | if (!error) { |
1387 | error = vnode_ref_ext(tvp, O_EVTONLY, 0); |
1388 | } |
1389 | vnode_put(vp: tvp); |
1390 | if (error == 0) { |
1391 | vnode_t nvp = NULLVP; |
1392 | |
1393 | error = vnode_lookup(path: buf, flags: 0, vpp: &nvp, ctx: vfs_context_current()); |
1394 | if (error == 0) { |
1395 | vnode_put(vp: nvp); |
1396 | nvp = NULLVP; |
1397 | } else if (vnode_isrecycled(vp: tvp)) { |
1398 | error = ESRCH; |
1399 | } else { |
1400 | if (vnode_getwithvid(tvp, vid) == 0) { |
1401 | mount_t mp = vnode_mount(vp: tvp); |
1402 | |
1403 | if (vfs_isunmount(mp)) { |
1404 | error = ESRCH; |
1405 | } |
1406 | vnode_put(vp: tvp); |
1407 | } else { |
1408 | error = ESRCH; |
1409 | } |
1410 | if (error == EACCES) { |
1411 | vfs_context_t ctx = vfs_context_current(); |
1412 | #if DEVLOPMENT || DEBUG |
1413 | printf("%s : EACCES returned vnode_lookup for path %s for uid %d\n" , __FUNCTION__, buf, (int)kauth_cred_getuid(ctx->vc_ucred)); |
1414 | #else |
1415 | printf("%s : EACCES returned by vnode_lookup for uid %d\n" , __FUNCTION__, (int)kauth_cred_getuid(cred: ctx->vc_ucred)); |
1416 | #endif |
1417 | |
1418 | nvp = NULLVP; |
1419 | error = vnode_lookup(path: buf, flags: 0, vpp: &nvp, ctx: vfs_context_kernel()); |
1420 | |
1421 | if (error == 0) { |
1422 | vnode_put(vp: nvp); |
1423 | nvp = NULLVP; |
1424 | } else if (error == EACCES) { |
1425 | #if DEVLOPMENT || DEBUG |
1426 | printf("%s : EACCES returned vnode_lookup for path %s for uid 0\n" , __FUNCTION__, buf); |
1427 | #else |
1428 | printf("%s : EACCES returned by vnode_lookup for uid 0\n" , __FUNCTION__); |
1429 | #endif |
1430 | /* This should be a panic for a local FS */ |
1431 | error = ENODEV; |
1432 | } |
1433 | } |
1434 | } |
1435 | vnode_rele_ext(tvp, O_EVTONLY, 0); |
1436 | } else { |
1437 | error = ESRCH; |
1438 | } |
1439 | } else { |
1440 | error = ESRCH; |
1441 | } |
1442 | return error; |
1443 | } |
1444 | |
1445 | |
1446 | int |
1447 | proc_pidworkqueueinfo(proc_t p, struct proc_workqueueinfo *pwqinfo) |
1448 | { |
1449 | int error = 0; |
1450 | |
1451 | bzero(s: pwqinfo, n: sizeof(struct proc_workqueueinfo)); |
1452 | |
1453 | error = fill_procworkqueue(p, pwqinfo); |
1454 | if (error) { |
1455 | return ESRCH; |
1456 | } else { |
1457 | return 0; |
1458 | } |
1459 | } |
1460 | |
1461 | |
1462 | void |
1463 | proc_piduniqidentifierinfo(proc_t p, struct proc_uniqidentifierinfo *p_uniqidinfo) |
1464 | { |
1465 | p_uniqidinfo->p_uniqueid = proc_uniqueid(p); |
1466 | proc_getexecutableuuid(p, (unsigned char *)&p_uniqidinfo->p_uuid, sizeof(p_uniqidinfo->p_uuid)); |
1467 | p_uniqidinfo->p_puniqueid = proc_puniqueid(p); |
1468 | p_uniqidinfo->p_idversion = proc_pidversion(p); |
1469 | p_uniqidinfo->p_reserve2 = 0; |
1470 | p_uniqidinfo->p_reserve3 = 0; |
1471 | p_uniqidinfo->p_reserve4 = 0; |
1472 | } |
1473 | |
1474 | |
1475 | static int |
1476 | proc_piduuidinfo(pid_t pid, uuid_t uuid_buf, uint32_t buffersize) |
1477 | { |
1478 | struct proc * p = PROC_NULL; |
1479 | int zombref = 0; |
1480 | |
1481 | if (buffersize < sizeof(uuid_t)) { |
1482 | return EINVAL; |
1483 | } |
1484 | |
1485 | if ((p = proc_find(pid)) == PROC_NULL) { |
1486 | p = proc_find_zombref(pid); |
1487 | zombref = 1; |
1488 | } |
1489 | if (p == PROC_NULL) { |
1490 | return ESRCH; |
1491 | } |
1492 | |
1493 | proc_getexecutableuuid(p, (unsigned char *)uuid_buf, buffersize); |
1494 | |
1495 | if (zombref) { |
1496 | proc_drop_zombref(p); |
1497 | } else { |
1498 | proc_rele(p); |
1499 | } |
1500 | |
1501 | return 0; |
1502 | } |
1503 | |
1504 | /* |
1505 | * Function to get the uuid and pid of the originator of the voucher. |
1506 | */ |
1507 | int |
1508 | proc_pidoriginatorpid_uuid(uuid_t uuid, uint32_t buffersize, pid_t *pid) |
1509 | { |
1510 | pid_t originator_pid; |
1511 | kern_return_t kr; |
1512 | int error; |
1513 | |
1514 | /* |
1515 | * Get the current voucher origin pid. The pid returned here |
1516 | * might not be valid or may have been recycled. |
1517 | */ |
1518 | kr = thread_get_current_voucher_origin_pid(pid: &originator_pid); |
1519 | /* If errors, convert errors to appropriate format */ |
1520 | if (kr) { |
1521 | if (kr == KERN_INVALID_TASK) { |
1522 | error = ESRCH; |
1523 | } else if (kr == KERN_INVALID_VALUE) { |
1524 | error = ENOATTR; |
1525 | } else { |
1526 | error = EINVAL; |
1527 | } |
1528 | return error; |
1529 | } |
1530 | |
1531 | *pid = originator_pid; |
1532 | error = proc_piduuidinfo(pid: originator_pid, uuid_buf: uuid, buffersize); |
1533 | return error; |
1534 | } |
1535 | |
1536 | /* |
1537 | * Function to get the uuid of the originator of the voucher. |
1538 | */ |
1539 | int |
1540 | proc_pidoriginatoruuid(uuid_t uuid, uint32_t buffersize) |
1541 | { |
1542 | pid_t originator_pid; |
1543 | return proc_pidoriginatorpid_uuid(uuid, buffersize, pid: &originator_pid); |
1544 | } |
1545 | |
1546 | /* |
1547 | * Function to get the task ipc table size. |
1548 | */ |
1549 | int |
1550 | proc_pidipctableinfo(proc_t p, struct proc_ipctableinfo *table_info) |
1551 | { |
1552 | task_t task; |
1553 | int error = 0; |
1554 | |
1555 | task = proc_task(p); |
1556 | |
1557 | bzero(s: table_info, n: sizeof(struct proc_ipctableinfo)); |
1558 | error = fill_taskipctableinfo(task, table_size: &(table_info->table_size), table_free: &(table_info->table_free)); |
1559 | |
1560 | if (error) { |
1561 | error = EINVAL; |
1562 | } |
1563 | |
1564 | return error; |
1565 | } |
1566 | |
1567 | int |
1568 | proc_pidthreadschedinfo(proc_t p, uint64_t arg, struct proc_threadschedinfo *sched_info) |
1569 | { |
1570 | int error; |
1571 | uint64_t const thread_id = (uint64_t)arg; |
1572 | task_t const task = proc_task(p); |
1573 | |
1574 | bzero(s: sched_info, n: sizeof(*sched_info)); |
1575 | error = fill_taskthreadschedinfo(task, thaddr: thread_id, thread_sched_info: (struct proc_threadschedinfo_internal*)sched_info); |
1576 | |
1577 | if (error != 0) { |
1578 | error = EINVAL; |
1579 | } |
1580 | |
1581 | return error; |
1582 | } |
1583 | |
1584 | /***************************** proc_pidoriginatorinfo ***************************/ |
1585 | |
1586 | int |
1587 | proc_pidoriginatorinfo(int pid, int flavor, user_addr_t buffer, uint32_t buffersize, int32_t * retval) |
1588 | { |
1589 | int error = ENOTSUP; |
1590 | uint32_t size; |
1591 | |
1592 | switch (flavor) { |
1593 | case PROC_PIDORIGINATOR_UUID: |
1594 | size = PROC_PIDORIGINATOR_UUID_SIZE; |
1595 | break; |
1596 | case PROC_PIDORIGINATOR_BGSTATE: |
1597 | size = PROC_PIDORIGINATOR_BGSTATE_SIZE; |
1598 | break; |
1599 | case PROC_PIDORIGINATOR_PID_UUID: |
1600 | size = PROC_PIDORIGINATOR_PID_UUID_SIZE; |
1601 | break; |
1602 | default: |
1603 | return EINVAL; |
1604 | } |
1605 | |
1606 | if (buffersize < size) { |
1607 | return ENOMEM; |
1608 | } |
1609 | |
1610 | if (pid != 0 && pid != proc_selfpid()) { |
1611 | return EINVAL; |
1612 | } |
1613 | |
1614 | switch (flavor) { |
1615 | case PROC_PIDORIGINATOR_UUID: { |
1616 | uuid_t uuid = {}; |
1617 | |
1618 | error = proc_pidoriginatoruuid(uuid, buffersize: sizeof(uuid)); |
1619 | if (error != 0) { |
1620 | goto out; |
1621 | } |
1622 | |
1623 | error = copyout(uuid, buffer, size); |
1624 | if (error == 0) { |
1625 | *retval = size; |
1626 | } |
1627 | } |
1628 | break; |
1629 | |
1630 | case PROC_PIDORIGINATOR_PID_UUID: { |
1631 | struct proc_originatorinfo originator_info; |
1632 | bzero(s: &originator_info, n: sizeof(originator_info)); |
1633 | |
1634 | error = proc_pidoriginatorpid_uuid(uuid: originator_info.originator_uuid, |
1635 | buffersize: sizeof(uuid_t), pid: &originator_info.originator_pid); |
1636 | if (error != 0) { |
1637 | goto out; |
1638 | } |
1639 | |
1640 | error = copyout(&originator_info, buffer, size); |
1641 | if (error == 0) { |
1642 | *retval = size; |
1643 | } |
1644 | } |
1645 | break; |
1646 | |
1647 | case PROC_PIDORIGINATOR_BGSTATE: { |
1648 | uint32_t is_backgrounded = 0; |
1649 | error = proc_get_originatorbgstate(is_backgrounded: &is_backgrounded); |
1650 | if (error) { |
1651 | goto out; |
1652 | } |
1653 | |
1654 | error = copyout(&is_backgrounded, buffer, size); |
1655 | if (error == 0) { |
1656 | *retval = size; |
1657 | } |
1658 | } |
1659 | break; |
1660 | |
1661 | default: |
1662 | error = ENOTSUP; |
1663 | } |
1664 | out: |
1665 | return error; |
1666 | } |
1667 | |
1668 | /***************************** proc_listcoalitions ***************************/ |
1669 | int |
1670 | proc_listcoalitions(int flavor, int type, user_addr_t buffer, |
1671 | uint32_t buffersize, int32_t *retval) |
1672 | { |
1673 | #if CONFIG_COALITIONS |
1674 | int error; |
1675 | int coal_type; |
1676 | size_t elem_size; |
1677 | void *coalinfo = NULL; |
1678 | size_t k_buffersize = 0; |
1679 | size_t copyoutsize = 0; |
1680 | size_t ncoals = 0; |
1681 | size_t ncoals2 = 0; |
1682 | |
1683 | switch (flavor) { |
1684 | case LISTCOALITIONS_ALL_COALS: |
1685 | elem_size = LISTCOALITIONS_ALL_COALS_SIZE; |
1686 | coal_type = -1; |
1687 | break; |
1688 | case LISTCOALITIONS_SINGLE_TYPE: |
1689 | elem_size = LISTCOALITIONS_SINGLE_TYPE_SIZE; |
1690 | coal_type = type; |
1691 | break; |
1692 | default: |
1693 | return EINVAL; |
1694 | } |
1695 | |
1696 | ncoals = coalitions_get_list(type: coal_type, NULL, list_sz: 0); |
1697 | |
1698 | if (ncoals == 0 || buffer == 0 || buffersize == 0) { |
1699 | *retval = (int32_t)(ncoals * elem_size); |
1700 | return 0; |
1701 | } |
1702 | |
1703 | if (os_mul_overflow(ncoals, elem_size, &k_buffersize)) { |
1704 | return ENOMEM; |
1705 | } |
1706 | |
1707 | coalinfo = kalloc_data(k_buffersize, Z_WAITOK | Z_ZERO); |
1708 | if (!coalinfo) { |
1709 | return ENOMEM; |
1710 | } |
1711 | |
1712 | ncoals2 = coalitions_get_list(type: coal_type, coal_list: coalinfo, list_sz: ncoals); |
1713 | |
1714 | copyoutsize = MIN(buffersize, MIN(ncoals2, ncoals) * elem_size); |
1715 | |
1716 | if (!(error = copyout(coalinfo, buffer, copyoutsize))) { |
1717 | *retval = (int32_t)copyoutsize; |
1718 | } |
1719 | |
1720 | kfree_data(coalinfo, k_buffersize); |
1721 | return error; |
1722 | #else |
1723 | /* no coalition support */ |
1724 | (void)flavor; |
1725 | (void)type; |
1726 | (void)buffer; |
1727 | (void)buffersize; |
1728 | (void)retval; |
1729 | return ENOTSUP; |
1730 | #endif |
1731 | } |
1732 | |
1733 | |
1734 | /*************************** proc_can_use_forgeound_hw **************************/ |
1735 | int |
1736 | proc_can_use_foreground_hw(int pid, user_addr_t u_reason, uint32_t reasonsize, int32_t *retval) |
1737 | { |
1738 | proc_t p = PROC_NULL; |
1739 | int error = 0; |
1740 | uint32_t reason = PROC_FGHW_ERROR; |
1741 | uint32_t isBG = 0; |
1742 | task_t task = TASK_NULL; |
1743 | #if CONFIG_COALITIONS |
1744 | coalition_t coal = COALITION_NULL; |
1745 | #endif |
1746 | |
1747 | *retval = 0; |
1748 | |
1749 | if (pid <= 0) { |
1750 | error = EINVAL; |
1751 | reason = PROC_FGHW_ERROR; |
1752 | goto out; |
1753 | } |
1754 | |
1755 | p = proc_find(pid); |
1756 | if (p == PROC_NULL) { |
1757 | error = ESRCH; |
1758 | reason = PROC_FGHW_ERROR; |
1759 | goto out; |
1760 | } |
1761 | |
1762 | #if CONFIG_COALITIONS |
1763 | if (p != current_proc() && |
1764 | !kauth_cred_issuser(cred: kauth_cred_get())) { |
1765 | error = EPERM; |
1766 | reason = PROC_FGHW_ERROR; |
1767 | goto out; |
1768 | } |
1769 | |
1770 | task = proc_task(p); |
1771 | if (coalition_is_leader(task, coal: task_get_coalition(task, COALITION_TYPE_JETSAM))) { |
1772 | task_reference(task); |
1773 | } else { |
1774 | /* current task is not a coalition leader: find the leader */ |
1775 | task = coalition_get_leader(coal); |
1776 | } |
1777 | |
1778 | if (task != TASK_NULL) { |
1779 | /* |
1780 | * If task is non-null, then it is the coalition leader of the |
1781 | * current process' coalition. This could be the same task as |
1782 | * the current_task, and that's OK. |
1783 | */ |
1784 | uint32_t flags = 0; |
1785 | int role; |
1786 | |
1787 | proc_get_darwinbgstate(task, flagsp: &flags); |
1788 | if ((flags & PROC_FLAG_APPLICATION) != PROC_FLAG_APPLICATION) { |
1789 | /* |
1790 | * Coalition leader is not an application, continue |
1791 | * searching for other ways this task could gain |
1792 | * access to HW |
1793 | */ |
1794 | reason = PROC_FGHW_DAEMON_LEADER; |
1795 | goto no_leader; |
1796 | } |
1797 | |
1798 | if (proc_get_effective_task_policy(task, TASK_POLICY_DARWIN_BG)) { |
1799 | /* |
1800 | * If the leader of the current process' coalition has |
1801 | * been marked as DARWIN_BG, then it definitely should |
1802 | * not be using foreground hardware resources. |
1803 | */ |
1804 | reason = PROC_FGHW_LEADER_BACKGROUND; |
1805 | goto out; |
1806 | } |
1807 | |
1808 | role = proc_get_effective_task_policy(task, TASK_POLICY_ROLE); |
1809 | switch (role) { |
1810 | case TASK_FOREGROUND_APPLICATION: /* DARWIN_ROLE_UI_FOCAL */ |
1811 | case TASK_BACKGROUND_APPLICATION: /* DARWIN_ROLE_UI */ |
1812 | /* |
1813 | * The leader of this coalition is a focal, UI app: |
1814 | * access granted |
1815 | * TODO: should extensions/plugins be allowed to use |
1816 | * this hardware? |
1817 | */ |
1818 | *retval = 1; |
1819 | reason = PROC_FGHW_OK; |
1820 | goto out; |
1821 | case TASK_DEFAULT_APPLICATION: /* DARWIN_ROLE_UI_NON_FOCAL */ |
1822 | case TASK_NONUI_APPLICATION: /* DARWIN_ROLE_NON_UI */ |
1823 | case TASK_THROTTLE_APPLICATION: |
1824 | case TASK_UNSPECIFIED: |
1825 | default: |
1826 | /* non-focal, non-ui apps don't get access */ |
1827 | reason = PROC_FGHW_LEADER_NONUI; |
1828 | goto out; |
1829 | } |
1830 | } |
1831 | |
1832 | no_leader: |
1833 | if (task != TASK_NULL) { |
1834 | task_deallocate(task); |
1835 | task = TASK_NULL; |
1836 | } |
1837 | #endif /* CONFIG_COALITIONS */ |
1838 | |
1839 | /* |
1840 | * There is no reasonable semantic to investigate the currently |
1841 | * adopted voucher of an arbitrary thread in a non-current process. |
1842 | * We return '0' |
1843 | */ |
1844 | if (p != current_proc()) { |
1845 | error = EINVAL; |
1846 | goto out; |
1847 | } |
1848 | |
1849 | /* |
1850 | * In the absence of coalitions, fall back to a voucher-based lookup |
1851 | * where a daemon can used foreground HW if it's operating on behalf |
1852 | * of a foreground application. |
1853 | * NOTE: this is equivalent to a call to |
1854 | * proc_pidoriginatorinfo(PROC_PIDORIGINATOR_BGSTATE, &isBG, sizeof(isBG)) |
1855 | */ |
1856 | isBG = 1; |
1857 | error = proc_get_originatorbgstate(is_backgrounded: &isBG); |
1858 | switch (error) { |
1859 | case 0: |
1860 | break; |
1861 | case ESRCH: |
1862 | reason = PROC_FGHW_NO_ORIGINATOR; |
1863 | error = 0; |
1864 | goto out; |
1865 | case ENOATTR: |
1866 | reason = PROC_FGHW_NO_VOUCHER_ATTR; |
1867 | error = 0; |
1868 | goto out; |
1869 | case EINVAL: |
1870 | reason = PROC_FGHW_DAEMON_NO_VOUCHER; |
1871 | error = 0; |
1872 | goto out; |
1873 | default: |
1874 | /* some other error occurred: report that to the caller */ |
1875 | reason = PROC_FGHW_VOUCHER_ERROR; |
1876 | goto out; |
1877 | } |
1878 | |
1879 | if (isBG) { |
1880 | reason = PROC_FGHW_ORIGINATOR_BACKGROUND; |
1881 | error = 0; |
1882 | } else { |
1883 | /* |
1884 | * The process itself is either a foreground app, or has |
1885 | * adopted a voucher originating from an app that's still in |
1886 | * the foreground |
1887 | */ |
1888 | reason = PROC_FGHW_DAEMON_OK; |
1889 | *retval = 1; |
1890 | } |
1891 | |
1892 | out: |
1893 | if (task != TASK_NULL) { |
1894 | task_deallocate(task); |
1895 | } |
1896 | if (p != PROC_NULL) { |
1897 | proc_rele(p); |
1898 | } |
1899 | if (reasonsize >= sizeof(reason) && u_reason != (user_addr_t)0) { |
1900 | (void)copyout(&reason, u_reason, sizeof(reason)); |
1901 | } |
1902 | return error; |
1903 | } |
1904 | |
1905 | #ifndef MIN_TO_SEC |
1906 | #define MIN_TO_SEC(x) ((x) * 60) |
1907 | #endif |
1908 | /** |
1909 | * Send a crash report for unpermitted proc_pidinfo calls on the kernel pid. |
1910 | * Throttles to one report every 10 minutes. |
1911 | */ |
1912 | static void __attribute__((noinline)) |
1913 | PROC_UNPERMITTED_PIDINFO_FLAVOR(void) |
1914 | { |
1915 | static clock_sec_t before = 0; |
1916 | clock_sec_t now; |
1917 | clock_nsec_t nsec; |
1918 | mach_exception_data_type_t code[EXCEPTION_CODE_MAX] = {0}; |
1919 | |
1920 | clock_get_system_nanotime(secs: &now, nanosecs: &nsec); |
1921 | |
1922 | /** |
1923 | * This can race, and if it does, it means a crash report was very recently |
1924 | * sent in another thread, so return early. |
1925 | */ |
1926 | if (now < before) { |
1927 | return; |
1928 | } |
1929 | |
1930 | /** |
1931 | * If 10 minutes have not passed since the last time we sent a crash report, |
1932 | * do nothing. |
1933 | */ |
1934 | if ((now - before) < MIN_TO_SEC(10)) { |
1935 | return; |
1936 | } |
1937 | |
1938 | before = now; |
1939 | |
1940 | /* We're rejecting the proc_info syscall */ |
1941 | EXC_GUARD_ENCODE_TYPE(code[0], GUARD_TYPE_REJECTED_SC); |
1942 | code[1] = SYS_proc_info; |
1943 | task_enqueue_exception_with_corpse(task: current_task(), EXC_GUARD, code, EXCEPTION_CODE_MAX, NULL, TRUE); |
1944 | } |
1945 | |
1946 | /********************************** proc_pidinfo ********************************/ |
1947 | |
1948 | |
1949 | int |
1950 | proc_pidinfo(int pid, uint32_t flags, uint64_t ext_id, int flavor, uint64_t arg, user_addr_t buffer, uint32_t buffersize, int32_t * retval) |
1951 | { |
1952 | struct proc * p = PROC_NULL; |
1953 | int error = ENOTSUP; |
1954 | int gotref = 0; |
1955 | int findzomb = 0; |
1956 | int shortversion = 0; |
1957 | uint32_t size; |
1958 | int zombie = 0; |
1959 | bool thuniqueid = false; |
1960 | int uniqidversion = 0; |
1961 | bool check_same_user; |
1962 | pid_t current_pid = proc_pid(current_proc()); |
1963 | |
1964 | /** |
1965 | * Before we move forward, we should check if an unpermitted operation is |
1966 | * attempted on the kernel task. |
1967 | */ |
1968 | if (pid == 0) { |
1969 | switch (flavor) { |
1970 | case PROC_PIDWORKQUEUEINFO: |
1971 | /* kernel does not have workq info */ |
1972 | return EINVAL; |
1973 | case PROC_PIDREGIONPATH: |
1974 | case PROC_PIDREGIONINFO: |
1975 | case PROC_PIDREGIONPATHINFO: |
1976 | case PROC_PIDREGIONPATHINFO2: |
1977 | case PROC_PIDREGIONPATHINFO3: |
1978 | /* This operation is not permitted on the kernel */ |
1979 | if (current_pid != pid) { |
1980 | PROC_UNPERMITTED_PIDINFO_FLAVOR(); |
1981 | return EPERM; |
1982 | } |
1983 | break; |
1984 | } |
1985 | } |
1986 | |
1987 | switch (flavor) { |
1988 | case PROC_PIDLISTFDS: |
1989 | size = PROC_PIDLISTFD_SIZE; |
1990 | if (buffer == USER_ADDR_NULL) { |
1991 | size = 0; |
1992 | } |
1993 | break; |
1994 | case PROC_PIDTBSDINFO: |
1995 | size = PROC_PIDTBSDINFO_SIZE; |
1996 | break; |
1997 | case PROC_PIDTASKINFO: |
1998 | size = PROC_PIDTASKINFO_SIZE; |
1999 | break; |
2000 | case PROC_PIDTASKALLINFO: |
2001 | size = PROC_PIDTASKALLINFO_SIZE; |
2002 | break; |
2003 | case PROC_PIDTHREADINFO: |
2004 | size = PROC_PIDTHREADINFO_SIZE; |
2005 | break; |
2006 | case PROC_PIDTHREADCOUNTS: |
2007 | size = PROC_PIDTHREADCOUNTS_SIZE; |
2008 | break; |
2009 | case PROC_PIDLISTTHREADIDS: |
2010 | size = PROC_PIDLISTTHREADIDS_SIZE; |
2011 | break; |
2012 | case PROC_PIDLISTTHREADS: |
2013 | size = PROC_PIDLISTTHREADS_SIZE; |
2014 | break; |
2015 | case PROC_PIDREGIONINFO: |
2016 | size = PROC_PIDREGIONINFO_SIZE; |
2017 | break; |
2018 | case PROC_PIDREGIONPATHINFO: |
2019 | size = PROC_PIDREGIONPATHINFO_SIZE; |
2020 | break; |
2021 | case PROC_PIDVNODEPATHINFO: |
2022 | size = PROC_PIDVNODEPATHINFO_SIZE; |
2023 | break; |
2024 | case PROC_PIDTHREADPATHINFO: |
2025 | size = PROC_PIDTHREADPATHINFO_SIZE; |
2026 | break; |
2027 | case PROC_PIDPATHINFO: |
2028 | size = MAXPATHLEN; |
2029 | break; |
2030 | case PROC_PIDWORKQUEUEINFO: |
2031 | size = PROC_PIDWORKQUEUEINFO_SIZE; |
2032 | break; |
2033 | case PROC_PIDT_SHORTBSDINFO: |
2034 | size = PROC_PIDT_SHORTBSDINFO_SIZE; |
2035 | break; |
2036 | case PROC_PIDLISTFILEPORTS: |
2037 | size = PROC_PIDLISTFILEPORTS_SIZE; |
2038 | if (buffer == (user_addr_t)0) { |
2039 | size = 0; |
2040 | } |
2041 | break; |
2042 | case PROC_PIDTHREADID64INFO: |
2043 | size = PROC_PIDTHREADID64INFO_SIZE; |
2044 | break; |
2045 | case PROC_PIDUNIQIDENTIFIERINFO: |
2046 | size = PROC_PIDUNIQIDENTIFIERINFO_SIZE; |
2047 | break; |
2048 | case PROC_PIDT_BSDINFOWITHUNIQID: |
2049 | size = PROC_PIDT_BSDINFOWITHUNIQID_SIZE; |
2050 | break; |
2051 | case PROC_PIDARCHINFO: |
2052 | size = PROC_PIDARCHINFO_SIZE; |
2053 | break; |
2054 | case PROC_PIDCOALITIONINFO: |
2055 | size = PROC_PIDCOALITIONINFO_SIZE; |
2056 | break; |
2057 | case PROC_PIDNOTEEXIT: |
2058 | /* |
2059 | * Set findzomb explicitly because arg passed |
2060 | * in is used as note exit status bits. |
2061 | */ |
2062 | size = PROC_PIDNOTEEXIT_SIZE; |
2063 | findzomb = 1; |
2064 | break; |
2065 | case PROC_PIDEXITREASONINFO: |
2066 | size = PROC_PIDEXITREASONINFO_SIZE; |
2067 | findzomb = 1; |
2068 | break; |
2069 | case PROC_PIDEXITREASONBASICINFO: |
2070 | size = PROC_PIDEXITREASONBASICINFOSIZE; |
2071 | findzomb = 1; |
2072 | break; |
2073 | case PROC_PIDREGIONPATHINFO2: |
2074 | size = PROC_PIDREGIONPATHINFO2_SIZE; |
2075 | break; |
2076 | case PROC_PIDREGIONPATHINFO3: |
2077 | size = PROC_PIDREGIONPATHINFO3_SIZE; |
2078 | break; |
2079 | case PROC_PIDLISTUPTRS: |
2080 | size = PROC_PIDLISTUPTRS_SIZE; |
2081 | if (buffer == USER_ADDR_NULL) { |
2082 | size = 0; |
2083 | } |
2084 | break; |
2085 | case PROC_PIDLISTDYNKQUEUES: |
2086 | size = PROC_PIDLISTDYNKQUEUES_SIZE; |
2087 | if (buffer == USER_ADDR_NULL) { |
2088 | size = 0; |
2089 | } |
2090 | break; |
2091 | case PROC_PIDVMRTFAULTINFO: |
2092 | size = sizeof(vm_rtfault_record_t); |
2093 | if (buffer == USER_ADDR_NULL) { |
2094 | size = 0; |
2095 | } |
2096 | break; |
2097 | case PROC_PIDPLATFORMINFO: |
2098 | size = PROC_PIDPLATFORMINFO_SIZE; |
2099 | findzomb = 1; |
2100 | break; |
2101 | case PROC_PIDREGIONPATH: |
2102 | size = PROC_PIDREGIONPATH_SIZE; |
2103 | break; |
2104 | case PROC_PIDIPCTABLEINFO: |
2105 | size = PROC_PIDIPCTABLEINFO_SIZE; |
2106 | break; |
2107 | case PROC_PIDTHREADSCHEDINFO: |
2108 | size = PROC_PIDTHREADSCHEDINFO_SIZE; |
2109 | break; |
2110 | default: |
2111 | return EINVAL; |
2112 | } |
2113 | |
2114 | if (buffersize < size) { |
2115 | return ENOMEM; |
2116 | } |
2117 | |
2118 | if ((flavor == PROC_PIDPATHINFO) && (buffersize > PROC_PIDPATHINFO_MAXSIZE)) { |
2119 | return EOVERFLOW; |
2120 | } |
2121 | |
2122 | /* Check if we need to look for zombies */ |
2123 | if ((flavor == PROC_PIDTBSDINFO) || (flavor == PROC_PIDT_SHORTBSDINFO) || (flavor == PROC_PIDT_BSDINFOWITHUNIQID) |
2124 | || (flavor == PROC_PIDUNIQIDENTIFIERINFO)) { |
2125 | if (arg) { |
2126 | findzomb = 1; |
2127 | } |
2128 | } |
2129 | |
2130 | if ((p = proc_find(pid)) == PROC_NULL) { |
2131 | if (findzomb) { |
2132 | p = proc_find_zombref(pid); |
2133 | } |
2134 | if (p == PROC_NULL) { |
2135 | error = ESRCH; |
2136 | goto out; |
2137 | } |
2138 | zombie = 1; |
2139 | } else { |
2140 | gotref = 1; |
2141 | } |
2142 | |
2143 | if ((flags & PIF_COMPARE_IDVERSION) && (ext_id != proc_pidversion(p))) { |
2144 | error = ESRCH; |
2145 | goto out; |
2146 | } |
2147 | if ((flags & PIF_COMPARE_UNIQUEID) && (ext_id != proc_uniqueid(p))) { |
2148 | error = ESRCH; |
2149 | goto out; |
2150 | } |
2151 | |
2152 | /* Certain operations don't require privileges */ |
2153 | switch (flavor) { |
2154 | case PROC_PIDT_SHORTBSDINFO: |
2155 | case PROC_PIDUNIQIDENTIFIERINFO: |
2156 | case PROC_PIDPATHINFO: |
2157 | case PROC_PIDCOALITIONINFO: |
2158 | case PROC_PIDPLATFORMINFO: |
2159 | check_same_user = NO_CHECK_SAME_USER; |
2160 | break; |
2161 | default: |
2162 | check_same_user = CHECK_SAME_USER; |
2163 | break; |
2164 | } |
2165 | |
2166 | /* Do we have permission to look into this? */ |
2167 | if ((error = proc_security_policy(targetp: p, PROC_INFO_CALL_PIDINFO, flavor, check_same_user))) { |
2168 | goto out; |
2169 | } |
2170 | |
2171 | switch (flavor) { |
2172 | case PROC_PIDLISTFDS: { |
2173 | error = proc_pidfdlist(p, buffer, buffersize, retval); |
2174 | } |
2175 | break; |
2176 | |
2177 | case PROC_PIDUNIQIDENTIFIERINFO: { |
2178 | struct proc_uniqidentifierinfo p_uniqidinfo; |
2179 | bzero(s: &p_uniqidinfo, n: sizeof(p_uniqidinfo)); |
2180 | proc_piduniqidentifierinfo(p, p_uniqidinfo: &p_uniqidinfo); |
2181 | error = copyout(&p_uniqidinfo, buffer, sizeof(struct proc_uniqidentifierinfo)); |
2182 | if (error == 0) { |
2183 | *retval = sizeof(struct proc_uniqidentifierinfo); |
2184 | } |
2185 | } |
2186 | break; |
2187 | |
2188 | case PROC_PIDT_SHORTBSDINFO: |
2189 | shortversion = 1; |
2190 | OS_FALLTHROUGH; |
2191 | case PROC_PIDT_BSDINFOWITHUNIQID: |
2192 | case PROC_PIDTBSDINFO: { |
2193 | struct proc_bsdinfo pbsd; |
2194 | struct proc_bsdshortinfo pbsd_short; |
2195 | struct proc_bsdinfowithuniqid pbsd_uniqid; |
2196 | |
2197 | if (flavor == PROC_PIDT_BSDINFOWITHUNIQID) { |
2198 | uniqidversion = 1; |
2199 | } |
2200 | |
2201 | if (shortversion != 0) { |
2202 | error = proc_pidshortbsdinfo(p, pbsd_shortp: &pbsd_short, zombie); |
2203 | } else { |
2204 | error = proc_pidbsdinfo(p, pbsd: &pbsd, zombie); |
2205 | if (uniqidversion != 0) { |
2206 | bzero(s: &pbsd_uniqid, n: sizeof(pbsd_uniqid)); |
2207 | proc_piduniqidentifierinfo(p, p_uniqidinfo: &pbsd_uniqid.p_uniqidentifier); |
2208 | pbsd_uniqid.pbsd = pbsd; |
2209 | } |
2210 | } |
2211 | |
2212 | if (error == 0) { |
2213 | if (shortversion != 0) { |
2214 | error = copyout(&pbsd_short, buffer, sizeof(struct proc_bsdshortinfo)); |
2215 | if (error == 0) { |
2216 | *retval = sizeof(struct proc_bsdshortinfo); |
2217 | } |
2218 | } else if (uniqidversion != 0) { |
2219 | error = copyout(&pbsd_uniqid, buffer, sizeof(struct proc_bsdinfowithuniqid)); |
2220 | if (error == 0) { |
2221 | *retval = sizeof(struct proc_bsdinfowithuniqid); |
2222 | } |
2223 | } else { |
2224 | error = copyout(&pbsd, buffer, sizeof(struct proc_bsdinfo)); |
2225 | if (error == 0) { |
2226 | *retval = sizeof(struct proc_bsdinfo); |
2227 | } |
2228 | } |
2229 | } |
2230 | } |
2231 | break; |
2232 | |
2233 | case PROC_PIDTASKINFO: { |
2234 | struct proc_taskinfo ptinfo; |
2235 | |
2236 | error = proc_pidtaskinfo(p, ptinfo: &ptinfo); |
2237 | if (error == 0) { |
2238 | error = copyout(&ptinfo, buffer, sizeof(struct proc_taskinfo)); |
2239 | if (error == 0) { |
2240 | *retval = sizeof(struct proc_taskinfo); |
2241 | } |
2242 | } |
2243 | } |
2244 | break; |
2245 | |
2246 | case PROC_PIDTASKALLINFO: { |
2247 | struct proc_taskallinfo pall; |
2248 | bzero(s: &pall, n: sizeof(pall)); |
2249 | error = proc_pidbsdinfo(p, pbsd: &pall.pbsd, zombie: 0); |
2250 | error = proc_pidtaskinfo(p, ptinfo: &pall.ptinfo); |
2251 | if (error == 0) { |
2252 | error = copyout(&pall, buffer, sizeof(struct proc_taskallinfo)); |
2253 | if (error == 0) { |
2254 | *retval = sizeof(struct proc_taskallinfo); |
2255 | } |
2256 | } |
2257 | } |
2258 | break; |
2259 | |
2260 | case PROC_PIDTHREADID64INFO: |
2261 | thuniqueid = true; |
2262 | OS_FALLTHROUGH; |
2263 | case PROC_PIDTHREADINFO:{ |
2264 | struct proc_threadinfo pthinfo; |
2265 | |
2266 | error = proc_pidthreadinfo(p, arg, thuniqueid, pthinfo: &pthinfo); |
2267 | if (error == 0) { |
2268 | error = copyout(&pthinfo, buffer, sizeof(struct proc_threadinfo)); |
2269 | if (error == 0) { |
2270 | *retval = sizeof(struct proc_threadinfo); |
2271 | } |
2272 | } |
2273 | } |
2274 | break; |
2275 | case PROC_PIDTHREADCOUNTS: { |
2276 | error = proc_pidthreadcounts(p, thuniqueid: arg, uaddr: buffer, usize: buffersize, ret: retval); |
2277 | } |
2278 | break; |
2279 | |
2280 | case PROC_PIDLISTTHREADIDS: |
2281 | thuniqueid = true; |
2282 | OS_FALLTHROUGH; |
2283 | case PROC_PIDLISTTHREADS:{ |
2284 | error = proc_pidlistthreads(p, thuniqueid, buffer, buffersize, retval); |
2285 | } |
2286 | break; |
2287 | |
2288 | case PROC_PIDREGIONINFO:{ |
2289 | error = proc_pidregioninfo(p, arg, buffer, buffersize, retval); |
2290 | } |
2291 | break; |
2292 | |
2293 | |
2294 | case PROC_PIDREGIONPATHINFO:{ |
2295 | error = proc_pidregionpathinfo(p, arg, buffer, buffersize, retval); |
2296 | } |
2297 | break; |
2298 | |
2299 | case PROC_PIDREGIONPATHINFO2:{ |
2300 | error = proc_pidregionpathinfo2(p, arg, buffer, buffersize, retval); |
2301 | } |
2302 | break; |
2303 | |
2304 | case PROC_PIDREGIONPATHINFO3:{ |
2305 | error = proc_pidregionpathinfo3(p, arg, buffer, buffersize, retval); |
2306 | } |
2307 | break; |
2308 | |
2309 | case PROC_PIDVNODEPATHINFO:{ |
2310 | error = proc_pidvnodepathinfo(p, arg, buffer, buffersize, retval); |
2311 | } |
2312 | break; |
2313 | |
2314 | |
2315 | case PROC_PIDTHREADPATHINFO:{ |
2316 | struct proc_threadwithpathinfo pinfo; |
2317 | |
2318 | error = proc_pidthreadpathinfo(p, arg, pinfo: &pinfo); |
2319 | if (error == 0) { |
2320 | error = copyout((caddr_t)&pinfo, buffer, sizeof(struct proc_threadwithpathinfo)); |
2321 | if (error == 0) { |
2322 | *retval = sizeof(struct proc_threadwithpathinfo); |
2323 | } |
2324 | } |
2325 | } |
2326 | break; |
2327 | |
2328 | case PROC_PIDPATHINFO: { |
2329 | error = proc_pidpathinfo(p, arg, buffer, buffersize, retval); |
2330 | } |
2331 | break; |
2332 | |
2333 | |
2334 | case PROC_PIDWORKQUEUEINFO:{ |
2335 | struct proc_workqueueinfo pwqinfo; |
2336 | |
2337 | error = proc_pidworkqueueinfo(p, pwqinfo: &pwqinfo); |
2338 | if (error == 0) { |
2339 | error = copyout(&pwqinfo, buffer, sizeof(struct proc_workqueueinfo)); |
2340 | if (error == 0) { |
2341 | *retval = sizeof(struct proc_workqueueinfo); |
2342 | } |
2343 | } |
2344 | } |
2345 | break; |
2346 | |
2347 | case PROC_PIDLISTFILEPORTS: { |
2348 | error = proc_pidfileportlist(p, buffer, buffersize, retval); |
2349 | } |
2350 | break; |
2351 | |
2352 | case PROC_PIDARCHINFO: { |
2353 | struct proc_archinfo pai; |
2354 | bzero(s: &pai, n: sizeof(pai)); |
2355 | proc_archinfo(p, pai: &pai); |
2356 | error = copyout(&pai, buffer, sizeof(struct proc_archinfo)); |
2357 | if (error == 0) { |
2358 | *retval = sizeof(struct proc_archinfo); |
2359 | } |
2360 | } |
2361 | break; |
2362 | |
2363 | case PROC_PIDCOALITIONINFO: { |
2364 | struct proc_pidcoalitioninfo pci; |
2365 | proc_pidcoalitioninfo(p, pci: &pci); |
2366 | error = copyout(&pci, buffer, sizeof(struct proc_pidcoalitioninfo)); |
2367 | if (error == 0) { |
2368 | *retval = sizeof(struct proc_pidcoalitioninfo); |
2369 | } |
2370 | } |
2371 | break; |
2372 | |
2373 | case PROC_PIDNOTEEXIT: { |
2374 | uint32_t data; |
2375 | error = proc_pidnoteexit(p, arg, data: &data); |
2376 | if (error == 0) { |
2377 | error = copyout(&data, buffer, sizeof(data)); |
2378 | if (error == 0) { |
2379 | *retval = sizeof(data); |
2380 | } |
2381 | } |
2382 | } |
2383 | break; |
2384 | |
2385 | case PROC_PIDEXITREASONINFO: { |
2386 | struct proc_exitreasoninfo eri; |
2387 | |
2388 | error = copyin(buffer, &eri, sizeof(eri)); |
2389 | if (error != 0) { |
2390 | break; |
2391 | } |
2392 | |
2393 | error = proc_pidexitreasoninfo(p, peri: &eri, NULL); |
2394 | if (error == 0) { |
2395 | error = copyout(&eri, buffer, sizeof(eri)); |
2396 | if (error == 0) { |
2397 | *retval = sizeof(eri); |
2398 | } |
2399 | } |
2400 | } |
2401 | break; |
2402 | |
2403 | case PROC_PIDEXITREASONBASICINFO: { |
2404 | struct proc_exitreasonbasicinfo beri; |
2405 | |
2406 | bzero(s: &beri, n: sizeof(struct proc_exitreasonbasicinfo)); |
2407 | |
2408 | error = proc_pidexitreasoninfo(p, NULL, pberi: &beri); |
2409 | if (error == 0) { |
2410 | error = copyout(&beri, buffer, sizeof(beri)); |
2411 | if (error == 0) { |
2412 | *retval = sizeof(beri); |
2413 | } |
2414 | } |
2415 | } |
2416 | break; |
2417 | |
2418 | case PROC_PIDLISTUPTRS: |
2419 | error = proc_pidlistuptrs(p, buffer, buffersize, retval); |
2420 | break; |
2421 | |
2422 | case PROC_PIDLISTDYNKQUEUES: |
2423 | error = kevent_copyout_proc_dynkqids(proc: p, ubuf: buffer, ubufsize: buffersize, nkqueues_out: retval); |
2424 | break; |
2425 | case PROC_PIDVMRTFAULTINFO: { |
2426 | /* This interface can only be employed on the current |
2427 | * process. We will eventually enforce an entitlement. |
2428 | */ |
2429 | *retval = 0; |
2430 | |
2431 | if (p != current_proc()) { |
2432 | error = EINVAL; |
2433 | break; |
2434 | } |
2435 | |
2436 | size_t kbufsz = MIN(buffersize, vmrtfaultinfo_bufsz()); |
2437 | void *vmrtfbuf = kalloc_data(kbufsz, Z_WAITOK | Z_ZERO); |
2438 | |
2439 | if (vmrtfbuf == NULL) { |
2440 | error = ENOMEM; |
2441 | break; |
2442 | } |
2443 | |
2444 | uint64_t effpid = get_current_unique_pid(); |
2445 | /* The VM may choose to provide more comprehensive records |
2446 | * for root-privileged users on internal configurations. |
2447 | */ |
2448 | boolean_t isroot = (suser(cred: kauth_cred_get(), acflag: (u_short *)0) == 0); |
2449 | size_t = 0; |
2450 | int vmf_residue = vmrtf_extract(effpid, isroot, kbufsz, vmrtfbuf, &num_extracted); |
2451 | size_t vmfsz = num_extracted * sizeof(vm_rtfault_record_t); |
2452 | |
2453 | *retval = (int32_t)MIN(num_extracted, INT32_MAX); |
2454 | |
2455 | error = 0; |
2456 | if (vmfsz) { |
2457 | error = copyout(vmrtfbuf, buffer, vmfsz); |
2458 | } |
2459 | |
2460 | if (error == 0) { |
2461 | if (vmf_residue) { |
2462 | error = ENOMEM; |
2463 | } |
2464 | } |
2465 | kfree_data(vmrtfbuf, kbufsz); |
2466 | } |
2467 | break; |
2468 | case PROC_PIDPLATFORMINFO: { |
2469 | proc_lock(p); |
2470 | uint32_t platform = proc_platform(p); |
2471 | proc_unlock(p); |
2472 | error = copyout(&platform, buffer, sizeof(uint32_t)); |
2473 | if (error == 0) { |
2474 | *retval = sizeof(uint32_t); |
2475 | } |
2476 | } break; |
2477 | case PROC_PIDREGIONPATH: { |
2478 | error = proc_pidregionpath(p, arg, buffer, buffersize, retval); |
2479 | } |
2480 | break; |
2481 | case PROC_PIDIPCTABLEINFO: { |
2482 | struct proc_ipctableinfo table_info; |
2483 | |
2484 | error = proc_pidipctableinfo(p, table_info: &table_info); |
2485 | if (error == 0) { |
2486 | error = copyout(&table_info, buffer, sizeof(struct proc_ipctableinfo)); |
2487 | if (error == 0) { |
2488 | *retval = sizeof(struct proc_ipctableinfo); |
2489 | } |
2490 | } |
2491 | } |
2492 | break; |
2493 | case PROC_PIDTHREADSCHEDINFO: { |
2494 | struct proc_threadschedinfo sched_info; |
2495 | |
2496 | error = proc_pidthreadschedinfo(p, arg, sched_info: &sched_info); |
2497 | if (error == 0) { |
2498 | error = copyout(&sched_info, buffer, sizeof(sched_info)); |
2499 | if (error == 0) { |
2500 | *retval = sizeof(sched_info); |
2501 | } |
2502 | } |
2503 | } |
2504 | break; |
2505 | default: |
2506 | error = ENOTSUP; |
2507 | break; |
2508 | } |
2509 | |
2510 | out: |
2511 | if (gotref) { |
2512 | proc_rele(p); |
2513 | } else if (zombie) { |
2514 | proc_drop_zombref(p); |
2515 | } |
2516 | return error; |
2517 | } |
2518 | |
2519 | |
2520 | int |
2521 | pid_vnodeinfo(vnode_t vp, struct fileproc * fp, proc_t proc, user_addr_t buffer, __unused uint32_t buffersize, int32_t * retval) |
2522 | { |
2523 | struct vnode_fdinfo vfi; |
2524 | uint32_t vid = vnode_vid(vp); |
2525 | int error = 0; |
2526 | |
2527 | if ((error = vnode_getwithvid(vp, vid)) != 0) { |
2528 | return error; |
2529 | } |
2530 | bzero(s: &vfi, n: sizeof(struct vnode_fdinfo)); |
2531 | fill_fileinfo(fp, proc, finfo: &vfi.pfi); |
2532 | error = fill_vnodeinfo(vp, vinfo: &vfi.pvi, FALSE); |
2533 | vnode_put(vp); |
2534 | if (error == 0) { |
2535 | error = copyout((caddr_t)&vfi, buffer, sizeof(struct vnode_fdinfo)); |
2536 | if (error == 0) { |
2537 | *retval = sizeof(struct vnode_fdinfo); |
2538 | } |
2539 | } |
2540 | return error; |
2541 | } |
2542 | |
2543 | int |
2544 | pid_vnodeinfopath(vnode_t vp, struct fileproc * fp, proc_t proc, user_addr_t buffer, __unused uint32_t buffersize, int32_t * retval) |
2545 | { |
2546 | struct vnode_fdinfowithpath vfip; |
2547 | uint32_t vid = vnode_vid(vp); |
2548 | int count, error = 0; |
2549 | |
2550 | if ((error = vnode_getwithvid(vp, vid)) != 0) { |
2551 | return error; |
2552 | } |
2553 | bzero(s: &vfip, n: sizeof(struct vnode_fdinfowithpath)); |
2554 | fill_fileinfo(fp, proc, finfo: &vfip.pfi); |
2555 | error = fill_vnodeinfo(vp, vinfo: &vfip.pvip.vip_vi, TRUE); |
2556 | if (error == 0) { |
2557 | count = MAXPATHLEN; |
2558 | vn_getpath(vp, pathbuf: &vfip.pvip.vip_path[0], len: &count); |
2559 | vfip.pvip.vip_path[MAXPATHLEN - 1] = 0; |
2560 | vnode_put(vp); |
2561 | error = copyout((caddr_t)&vfip, buffer, sizeof(struct vnode_fdinfowithpath)); |
2562 | if (error == 0) { |
2563 | *retval = sizeof(struct vnode_fdinfowithpath); |
2564 | } |
2565 | } else { |
2566 | vnode_put(vp); |
2567 | } |
2568 | return error; |
2569 | } |
2570 | |
2571 | void |
2572 | fill_fileinfo(struct fileproc * fp, proc_t proc, struct proc_fileinfo * fproc) |
2573 | { |
2574 | fproc->fi_openflags = fp->fp_glob->fg_flag; |
2575 | fproc->fi_status = 0; |
2576 | fproc->fi_offset = fp->fp_glob->fg_offset; |
2577 | fproc->fi_type = FILEGLOB_DTYPE(fp->fp_glob); |
2578 | if (os_ref_get_count_raw(rc: &fp->fp_glob->fg_count) > 1) { |
2579 | fproc->fi_status |= PROC_FP_SHARED; |
2580 | } |
2581 | if (proc != PROC_NULL) { |
2582 | if (fp->fp_flags & FP_CLOEXEC) { |
2583 | fproc->fi_status |= PROC_FP_CLEXEC; |
2584 | } |
2585 | if (fp->fp_flags & FP_CLOFORK) { |
2586 | fproc->fi_status |= PROC_FP_CLFORK; |
2587 | } |
2588 | } |
2589 | if (fp->fp_guard_attrs) { |
2590 | fproc->fi_status |= PROC_FP_GUARDED; |
2591 | fproc->fi_guardflags = 0; |
2592 | if (fp_isguarded(fp, GUARD_CLOSE)) { |
2593 | fproc->fi_guardflags |= PROC_FI_GUARD_CLOSE; |
2594 | } |
2595 | if (fp_isguarded(fp, GUARD_DUP)) { |
2596 | fproc->fi_guardflags |= PROC_FI_GUARD_DUP; |
2597 | } |
2598 | if (fp_isguarded(fp, GUARD_SOCKET_IPC)) { |
2599 | fproc->fi_guardflags |= PROC_FI_GUARD_SOCKET_IPC; |
2600 | } |
2601 | if (fp_isguarded(fp, GUARD_FILEPORT)) { |
2602 | fproc->fi_guardflags |= PROC_FI_GUARD_FILEPORT; |
2603 | } |
2604 | } |
2605 | } |
2606 | |
2607 | |
2608 | |
2609 | int |
2610 | fill_vnodeinfo(vnode_t vp, struct vnode_info *vinfo, __unused boolean_t check_fsgetpath) |
2611 | { |
2612 | vfs_context_t context; |
2613 | struct stat64 sb; |
2614 | int error = 0; |
2615 | |
2616 | bzero(s: &sb, n: sizeof(struct stat64)); |
2617 | context = vfs_context_create(ctx: (vfs_context_t)0); |
2618 | #if CONFIG_MACF |
2619 | /* Called when vnode info is used by the caller to get vnode's path */ |
2620 | if (check_fsgetpath) { |
2621 | error = mac_vnode_check_fsgetpath(ctx: context, vp); |
2622 | } |
2623 | #endif |
2624 | if (!error) { |
2625 | error = vn_stat(vp, sb: &sb, NULL, isstat64: 1, needsrealdev: 0, ctx: context); |
2626 | munge_vinfo_stat(sbp: &sb, vsbp: &vinfo->vi_stat); |
2627 | } |
2628 | (void)vfs_context_rele(ctx: context); |
2629 | if (error != 0) { |
2630 | goto out; |
2631 | } |
2632 | |
2633 | if (vp->v_mount != dead_mountp) { |
2634 | vinfo->vi_fsid = vp->v_mount->mnt_vfsstat.f_fsid; |
2635 | } else { |
2636 | vinfo->vi_fsid.val[0] = 0; |
2637 | vinfo->vi_fsid.val[1] = 0; |
2638 | } |
2639 | vinfo->vi_type = vp->v_type; |
2640 | out: |
2641 | return error; |
2642 | } |
2643 | |
2644 | int |
2645 | pid_socketinfo(socket_t so, struct fileproc *fp, proc_t proc, user_addr_t buffer, __unused uint32_t buffersize, int32_t * retval) |
2646 | { |
2647 | #if SOCKETS |
2648 | struct socket_fdinfo s; |
2649 | int error = 0; |
2650 | |
2651 | bzero(s: &s, n: sizeof(struct socket_fdinfo)); |
2652 | fill_fileinfo(fp, proc, fproc: &s.pfi); |
2653 | if ((error = fill_socketinfo(so, si: &s.psi)) == 0) { |
2654 | if ((error = copyout(&s, buffer, sizeof(struct socket_fdinfo))) == 0) { |
2655 | *retval = sizeof(struct socket_fdinfo); |
2656 | } |
2657 | } |
2658 | return error; |
2659 | #else |
2660 | #pragma unused(so, fp, proc, fd, buffer) |
2661 | *retval = 0; |
2662 | return ENOTSUP; |
2663 | #endif |
2664 | } |
2665 | |
2666 | int |
2667 | pid_pseminfo(struct psemnode *psem, struct fileproc *fp, proc_t proc, user_addr_t buffer, __unused uint32_t buffersize, int32_t * retval) |
2668 | { |
2669 | struct psem_fdinfo pseminfo; |
2670 | int error = 0; |
2671 | |
2672 | bzero(s: &pseminfo, n: sizeof(struct psem_fdinfo)); |
2673 | fill_fileinfo(fp, proc, fproc: &pseminfo.pfi); |
2674 | |
2675 | if ((error = fill_pseminfo(psem, pinfo: &pseminfo.pseminfo)) == 0) { |
2676 | if ((error = copyout(&pseminfo, buffer, sizeof(struct psem_fdinfo))) == 0) { |
2677 | *retval = sizeof(struct psem_fdinfo); |
2678 | } |
2679 | } |
2680 | |
2681 | return error; |
2682 | } |
2683 | |
2684 | int |
2685 | pid_pshminfo(struct pshmnode *pshm, struct fileproc *fp, proc_t proc, user_addr_t buffer, __unused uint32_t buffersize, int32_t * retval) |
2686 | { |
2687 | struct pshm_fdinfo pshminfo; |
2688 | int error = 0; |
2689 | |
2690 | bzero(s: &pshminfo, n: sizeof(struct pshm_fdinfo)); |
2691 | fill_fileinfo(fp, proc, fproc: &pshminfo.pfi); |
2692 | |
2693 | if ((error = fill_pshminfo(pshm, pinfo: &pshminfo.pshminfo)) == 0) { |
2694 | if ((error = copyout(&pshminfo, buffer, sizeof(struct pshm_fdinfo))) == 0) { |
2695 | *retval = sizeof(struct pshm_fdinfo); |
2696 | } |
2697 | } |
2698 | |
2699 | return error; |
2700 | } |
2701 | |
2702 | int |
2703 | pid_pipeinfo(struct pipe * p, struct fileproc *fp, proc_t proc, user_addr_t buffer, __unused uint32_t buffersize, int32_t * retval) |
2704 | { |
2705 | struct pipe_fdinfo pipeinfo; |
2706 | int error = 0; |
2707 | |
2708 | bzero(s: &pipeinfo, n: sizeof(struct pipe_fdinfo)); |
2709 | fill_fileinfo(fp, proc, fproc: &pipeinfo.pfi); |
2710 | if ((error = fill_pipeinfo(cpipe: p, pinfo: &pipeinfo.pipeinfo)) == 0) { |
2711 | if ((error = copyout(&pipeinfo, buffer, sizeof(struct pipe_fdinfo))) == 0) { |
2712 | *retval = sizeof(struct pipe_fdinfo); |
2713 | } |
2714 | } |
2715 | |
2716 | return error; |
2717 | } |
2718 | |
2719 | int |
2720 | pid_kqueueinfo(struct kqueue * kq, struct fileproc *fp, proc_t proc, user_addr_t buffer, __unused uint32_t buffersize, int32_t * retval) |
2721 | { |
2722 | struct kqueue_fdinfo kqinfo; |
2723 | int error = 0; |
2724 | |
2725 | bzero(s: &kqinfo, n: sizeof(struct kqueue_fdinfo)); |
2726 | |
2727 | /* not all kq's are associated with a file (e.g. workqkq) */ |
2728 | if (fp) { |
2729 | fill_fileinfo(fp, proc, fproc: &kqinfo.pfi); |
2730 | } |
2731 | |
2732 | if ((error = fill_kqueueinfo(kq, kinfo: &kqinfo.kqueueinfo)) == 0) { |
2733 | if ((error = copyout(&kqinfo, buffer, sizeof(struct kqueue_fdinfo))) == 0) { |
2734 | *retval = sizeof(struct kqueue_fdinfo); |
2735 | } |
2736 | } |
2737 | |
2738 | return error; |
2739 | } |
2740 | |
2741 | int |
2742 | pid_channelinfo(struct kern_channel * chan, struct fileproc *fp, proc_t proc, user_addr_t buffer, __unused uint32_t buffersize, int32_t * retval) |
2743 | { |
2744 | #if SKYWALK |
2745 | struct channel_fdinfo channel_info; |
2746 | int error = 0; |
2747 | |
2748 | bzero(s: &channel_info, n: sizeof(struct channel_fdinfo)); |
2749 | fill_fileinfo(fp, proc, fproc: &channel_info.pfi); |
2750 | if ((error = fill_channelinfo(chan, chan_info: &channel_info.channelinfo)) == 0) { |
2751 | if ((error = copyout(&channel_info, buffer, sizeof(struct channel_fdinfo))) == 0) { |
2752 | *retval = sizeof(struct channel_fdinfo); |
2753 | } |
2754 | } |
2755 | return error; |
2756 | #else |
2757 | #pragma unused(chan, fp, proc, fd, buffer) |
2758 | *retval = 0; |
2759 | return ENOTSUP; |
2760 | #endif |
2761 | } |
2762 | |
2763 | /************************** proc_pidfdinfo routine ***************************/ |
2764 | int |
2765 | proc_pidfdinfo(int pid, int flavor, int fd, user_addr_t buffer, uint32_t buffersize, int32_t * retval) |
2766 | { |
2767 | proc_t p; |
2768 | int error = ENOTSUP; |
2769 | struct fileproc *fp = NULL; |
2770 | uint32_t size; |
2771 | |
2772 | switch (flavor) { |
2773 | case PROC_PIDFDVNODEINFO: |
2774 | size = PROC_PIDFDVNODEINFO_SIZE; |
2775 | break; |
2776 | case PROC_PIDFDVNODEPATHINFO: |
2777 | size = PROC_PIDFDVNODEPATHINFO_SIZE; |
2778 | break; |
2779 | case PROC_PIDFDSOCKETINFO: |
2780 | size = PROC_PIDFDSOCKETINFO_SIZE; |
2781 | break; |
2782 | case PROC_PIDFDPSEMINFO: |
2783 | size = PROC_PIDFDPSEMINFO_SIZE; |
2784 | break; |
2785 | case PROC_PIDFDPSHMINFO: |
2786 | size = PROC_PIDFDPSHMINFO_SIZE; |
2787 | break; |
2788 | case PROC_PIDFDPIPEINFO: |
2789 | size = PROC_PIDFDPIPEINFO_SIZE; |
2790 | break; |
2791 | case PROC_PIDFDKQUEUEINFO: |
2792 | size = PROC_PIDFDKQUEUEINFO_SIZE; |
2793 | break; |
2794 | case PROC_PIDFDKQUEUE_EXTINFO: |
2795 | size = PROC_PIDFDKQUEUE_EXTINFO_SIZE; |
2796 | if (buffer == (user_addr_t)0) { |
2797 | size = 0; |
2798 | } |
2799 | break; |
2800 | case PROC_PIDFDATALKINFO: |
2801 | size = PROC_PIDFDATALKINFO_SIZE; |
2802 | break; |
2803 | case PROC_PIDFDCHANNELINFO: |
2804 | size = PROC_PIDFDCHANNELINFO_SIZE; |
2805 | break; |
2806 | |
2807 | default: |
2808 | return EINVAL; |
2809 | } |
2810 | |
2811 | if (buffersize < size) { |
2812 | return ENOMEM; |
2813 | } |
2814 | |
2815 | if ((p = proc_find(pid)) == PROC_NULL) { |
2816 | error = ESRCH; |
2817 | goto out; |
2818 | } |
2819 | |
2820 | /* Do we have permission to look into this? */ |
2821 | if ((error = proc_security_policy(targetp: p, PROC_INFO_CALL_PIDFDINFO, flavor, CHECK_SAME_USER))) { |
2822 | goto out1; |
2823 | } |
2824 | |
2825 | switch (flavor) { |
2826 | case PROC_PIDFDVNODEINFO: { |
2827 | if ((error = fp_get_ftype(p, fd, ftype: DTYPE_VNODE, EBADF, fpp: &fp)) != 0) { |
2828 | goto out1; |
2829 | } |
2830 | error = pid_vnodeinfo(vp: (vnode_t)fp_get_data(fp), fp, proc: p, buffer, buffersize, retval); |
2831 | } |
2832 | break; |
2833 | |
2834 | case PROC_PIDFDVNODEPATHINFO: { |
2835 | if ((error = fp_get_ftype(p, fd, ftype: DTYPE_VNODE, EBADF, fpp: &fp)) != 0) { |
2836 | goto out1; |
2837 | } |
2838 | error = pid_vnodeinfopath(vp: (vnode_t)fp_get_data(fp), fp, proc: p, buffer, buffersize, retval); |
2839 | } |
2840 | break; |
2841 | |
2842 | case PROC_PIDFDSOCKETINFO: { |
2843 | if ((error = fp_get_ftype(p, fd, ftype: DTYPE_SOCKET, ENOTSOCK, fpp: &fp)) != 0) { |
2844 | goto out1; |
2845 | } |
2846 | error = pid_socketinfo(so: (socket_t)fp_get_data(fp), fp, proc: p, buffer, buffersize, retval); |
2847 | } |
2848 | break; |
2849 | |
2850 | case PROC_PIDFDPSEMINFO: { |
2851 | if ((error = fp_get_ftype(p, fd, ftype: DTYPE_PSXSEM, EBADF, fpp: &fp)) != 0) { |
2852 | goto out1; |
2853 | } |
2854 | error = pid_pseminfo(psem: (struct psemnode *)fp_get_data(fp), fp, proc: p, buffer, buffersize, retval); |
2855 | } |
2856 | break; |
2857 | |
2858 | case PROC_PIDFDPSHMINFO: { |
2859 | if ((error = fp_get_ftype(p, fd, ftype: DTYPE_PSXSHM, EBADF, fpp: &fp)) != 0) { |
2860 | goto out1; |
2861 | } |
2862 | error = pid_pshminfo(pshm: (struct pshmnode *)fp_get_data(fp), fp, proc: p, buffer, buffersize, retval); |
2863 | } |
2864 | break; |
2865 | |
2866 | case PROC_PIDFDPIPEINFO: { |
2867 | if ((error = fp_get_ftype(p, fd, ftype: DTYPE_PIPE, EBADF, fpp: &fp)) != 0) { |
2868 | goto out1; |
2869 | } |
2870 | error = pid_pipeinfo(p: (struct pipe *)fp_get_data(fp), fp, proc: p, buffer, buffersize, retval); |
2871 | } |
2872 | break; |
2873 | |
2874 | case PROC_PIDFDKQUEUEINFO: { |
2875 | kqueue_t kqu; |
2876 | |
2877 | if (fd == -1) { |
2878 | if ((kqu.kqwq = p->p_fd.fd_wqkqueue) == NULL) { |
2879 | /* wqkqueue is initialized on-demand */ |
2880 | error = 0; |
2881 | break; |
2882 | } |
2883 | } else if ((error = fp_get_ftype(p, fd, ftype: DTYPE_KQUEUE, EBADF, fpp: &fp)) != 0) { |
2884 | goto out1; |
2885 | } else { |
2886 | kqu.kq = (struct kqueue *)fp_get_data(fp); |
2887 | } |
2888 | |
2889 | error = pid_kqueueinfo(kq: kqu.kq, fp, proc: p, buffer, buffersize, retval); |
2890 | } |
2891 | break; |
2892 | |
2893 | case PROC_PIDFDKQUEUE_EXTINFO: { |
2894 | kqueue_t kqu; |
2895 | |
2896 | if (fd == -1) { |
2897 | if ((kqu.kqwq = p->p_fd.fd_wqkqueue) == NULL) { |
2898 | /* wqkqueue is initialized on-demand */ |
2899 | error = 0; |
2900 | break; |
2901 | } |
2902 | } else if ((error = fp_get_ftype(p, fd, ftype: DTYPE_KQUEUE, EBADF, fpp: &fp)) != 0) { |
2903 | goto out1; |
2904 | } else { |
2905 | kqu.kq = (struct kqueue *)fp_get_data(fp); |
2906 | } |
2907 | error = pid_kqueue_extinfo(p, kq: kqu.kq, buffer, buffersize, retval); |
2908 | } |
2909 | break; |
2910 | case PROC_PIDFDCHANNELINFO: { |
2911 | if ((error = fp_get_ftype(p, fd, ftype: DTYPE_CHANNEL, EBADF, fpp: &fp)) != 0) { |
2912 | goto out1; |
2913 | } |
2914 | /* no need to be under the fdlock */ |
2915 | error = pid_channelinfo(chan: (struct kern_channel *)fp_get_data(fp), fp, proc: p, buffer, buffersize, retval); |
2916 | } |
2917 | break; |
2918 | |
2919 | default: { |
2920 | error = EINVAL; |
2921 | goto out1; |
2922 | } |
2923 | } |
2924 | |
2925 | if (fp) { |
2926 | fp_drop(p, fd, fp, locked: 0); |
2927 | } |
2928 | out1: |
2929 | proc_rele(p); |
2930 | out: |
2931 | return error; |
2932 | } |
2933 | |
2934 | #define MAX_UPTRS 16392 |
2935 | |
2936 | int |
2937 | proc_pidlistuptrs(proc_t p, user_addr_t buffer, uint32_t buffersize, int32_t *retval) |
2938 | { |
2939 | uint32_t count = 0; |
2940 | int error = 0; |
2941 | void *kbuf = NULL; |
2942 | int32_t nuptrs = 0; |
2943 | |
2944 | if (buffer == USER_ADDR_NULL || buffersize < sizeof(uint64_t)) { |
2945 | buffersize = 0; |
2946 | } else { |
2947 | count = MIN(buffersize / sizeof(uint64_t), MAX_UPTRS); |
2948 | buffersize = count * sizeof(uint64_t); |
2949 | kbuf = kalloc_data(buffersize, Z_WAITOK); |
2950 | } |
2951 | |
2952 | nuptrs = kevent_proc_copy_uptrs(proc: p, buf: kbuf, bufsize: buffersize); |
2953 | |
2954 | if (kbuf) { |
2955 | size_t copysize; |
2956 | if (os_mul_overflow(nuptrs, sizeof(uint64_t), ©size)) { |
2957 | error = ERANGE; |
2958 | goto out; |
2959 | } |
2960 | if (copysize > buffersize) { |
2961 | copysize = buffersize; |
2962 | } |
2963 | error = copyout(kbuf, buffer, copysize); |
2964 | } |
2965 | |
2966 | out: |
2967 | *retval = nuptrs; |
2968 | |
2969 | if (kbuf) { |
2970 | kfree_data(kbuf, buffersize); |
2971 | kbuf = NULL; |
2972 | } |
2973 | |
2974 | return error; |
2975 | } |
2976 | |
2977 | /* |
2978 | * Helper function for proc_pidfileportinfo |
2979 | */ |
2980 | |
2981 | struct fileport_info_args { |
2982 | int fia_flavor; |
2983 | user_addr_t fia_buffer; |
2984 | uint32_t fia_buffersize; |
2985 | int32_t *fia_retval; |
2986 | }; |
2987 | |
2988 | static kern_return_t |
2989 | proc_fileport_info(__unused mach_port_name_t name, |
2990 | struct fileglob *fg, void *arg) |
2991 | { |
2992 | struct fileport_info_args *fia = arg; |
2993 | struct fileproc __fileproc, *fp = &__fileproc; |
2994 | int error; |
2995 | |
2996 | bzero(s: fp, n: sizeof(*fp)); |
2997 | fp->fp_glob = fg; |
2998 | |
2999 | switch (fia->fia_flavor) { |
3000 | case PROC_PIDFILEPORTVNODEPATHINFO: { |
3001 | vnode_t vp; |
3002 | |
3003 | if (FILEGLOB_DTYPE(fg) != DTYPE_VNODE) { |
3004 | error = ENOTSUP; |
3005 | break; |
3006 | } |
3007 | vp = (struct vnode *)fg_get_data(fg); |
3008 | error = pid_vnodeinfopath(vp, fp, PROC_NULL, |
3009 | buffer: fia->fia_buffer, buffersize: fia->fia_buffersize, retval: fia->fia_retval); |
3010 | } break; |
3011 | |
3012 | case PROC_PIDFILEPORTSOCKETINFO: { |
3013 | socket_t so; |
3014 | |
3015 | if (FILEGLOB_DTYPE(fg) != DTYPE_SOCKET) { |
3016 | error = EOPNOTSUPP; |
3017 | break; |
3018 | } |
3019 | so = (socket_t)fg_get_data(fg); |
3020 | error = pid_socketinfo(so, fp, PROC_NULL, |
3021 | buffer: fia->fia_buffer, buffersize: fia->fia_buffersize, retval: fia->fia_retval); |
3022 | } break; |
3023 | |
3024 | case PROC_PIDFILEPORTPSHMINFO: { |
3025 | struct pshmnode *pshm; |
3026 | |
3027 | if (FILEGLOB_DTYPE(fg) != DTYPE_PSXSHM) { |
3028 | error = EBADF; /* ick - mirror fp_getfpshm */ |
3029 | break; |
3030 | } |
3031 | pshm = (struct pshmnode *)fg_get_data(fg); |
3032 | error = pid_pshminfo(pshm, fp, PROC_NULL, |
3033 | buffer: fia->fia_buffer, buffersize: fia->fia_buffersize, retval: fia->fia_retval); |
3034 | } break; |
3035 | |
3036 | case PROC_PIDFILEPORTPIPEINFO: { |
3037 | struct pipe *cpipe; |
3038 | |
3039 | if (FILEGLOB_DTYPE(fg) != DTYPE_PIPE) { |
3040 | error = EBADF; /* ick - mirror fp_getfpipe */ |
3041 | break; |
3042 | } |
3043 | cpipe = (struct pipe *)fg_get_data(fg); |
3044 | error = pid_pipeinfo(p: cpipe, fp, PROC_NULL, |
3045 | buffer: fia->fia_buffer, buffersize: fia->fia_buffersize, retval: fia->fia_retval); |
3046 | } break; |
3047 | |
3048 | default: |
3049 | error = EINVAL; |
3050 | break; |
3051 | } |
3052 | |
3053 | return error; |
3054 | } |
3055 | |
3056 | /************************* proc_pidfileportinfo routine *********************/ |
3057 | int |
3058 | proc_pidfileportinfo(int pid, int flavor, mach_port_name_t name, |
3059 | user_addr_t buffer, uint32_t buffersize, int32_t *retval) |
3060 | { |
3061 | proc_t p; |
3062 | int error = ENOTSUP; |
3063 | uint32_t size; |
3064 | struct fileport_info_args fia; |
3065 | |
3066 | /* fileport types are restricted by file_issendable() */ |
3067 | |
3068 | switch (flavor) { |
3069 | case PROC_PIDFILEPORTVNODEPATHINFO: |
3070 | size = PROC_PIDFILEPORTVNODEPATHINFO_SIZE; |
3071 | break; |
3072 | case PROC_PIDFILEPORTSOCKETINFO: |
3073 | size = PROC_PIDFILEPORTSOCKETINFO_SIZE; |
3074 | break; |
3075 | case PROC_PIDFILEPORTPSHMINFO: |
3076 | size = PROC_PIDFILEPORTPSHMINFO_SIZE; |
3077 | break; |
3078 | case PROC_PIDFILEPORTPIPEINFO: |
3079 | size = PROC_PIDFILEPORTPIPEINFO_SIZE; |
3080 | break; |
3081 | default: |
3082 | return EINVAL; |
3083 | } |
3084 | |
3085 | if (buffersize < size) { |
3086 | return ENOMEM; |
3087 | } |
3088 | if ((p = proc_find(pid)) == PROC_NULL) { |
3089 | error = ESRCH; |
3090 | goto out; |
3091 | } |
3092 | |
3093 | /* Do we have permission to look into this? */ |
3094 | if ((error = proc_security_policy(targetp: p, PROC_INFO_CALL_PIDFILEPORTINFO, flavor, CHECK_SAME_USER))) { |
3095 | goto out1; |
3096 | } |
3097 | |
3098 | fia.fia_flavor = flavor; |
3099 | fia.fia_buffer = buffer; |
3100 | fia.fia_buffersize = buffersize; |
3101 | fia.fia_retval = retval; |
3102 | |
3103 | if (fileport_invoke(proc_task(p), name, |
3104 | proc_fileport_info, &fia, &error) != KERN_SUCCESS) { |
3105 | error = EINVAL; |
3106 | } |
3107 | out1: |
3108 | proc_rele(p); |
3109 | out: |
3110 | return error; |
3111 | } |
3112 | |
3113 | int |
3114 | proc_security_policy(proc_t targetp, __unused int callnum, __unused int flavor, boolean_t check_same_user) |
3115 | { |
3116 | #if CONFIG_MACF |
3117 | int error = 0; |
3118 | |
3119 | if ((error = mac_proc_check_proc_info(curp: current_proc(), target: targetp, callnum, flavor))) { |
3120 | return error; |
3121 | } |
3122 | #endif |
3123 | |
3124 | /* The 'listpids' call doesn't have a target proc */ |
3125 | if (targetp == PROC_NULL) { |
3126 | assert(callnum == PROC_INFO_CALL_LISTPIDS && check_same_user == NO_CHECK_SAME_USER); |
3127 | return 0; |
3128 | } |
3129 | |
3130 | /* |
3131 | * Check for 'get information for processes owned by other users' privilege |
3132 | * root has this privilege by default |
3133 | */ |
3134 | if (check_same_user) { |
3135 | kauth_cred_t my_cred = kauth_cred_get(); |
3136 | kauth_cred_t tg_cred; |
3137 | |
3138 | smr_proc_task_enter(); |
3139 | tg_cred = proc_ucred_smr(p: targetp); |
3140 | if (kauth_cred_getuid(cred: my_cred) != kauth_cred_getuid(cred: tg_cred)) { |
3141 | error = EPERM; |
3142 | } |
3143 | tg_cred = NOCRED; |
3144 | smr_proc_task_leave(); |
3145 | |
3146 | /* |
3147 | * If uid doesn't match, check if the caller is specially entitled |
3148 | * to bypass the requirement. |
3149 | */ |
3150 | if (error && priv_check_cred(cred: my_cred, PRIV_GLOBAL_PROC_INFO, flags: 0)) { |
3151 | return EPERM; |
3152 | } |
3153 | } |
3154 | |
3155 | return 0; |
3156 | } |
3157 | |
3158 | int |
3159 | proc_kernmsgbuf(user_addr_t buffer, uint32_t buffersize, int32_t * retval) |
3160 | { |
3161 | #if CONFIG_MACF |
3162 | int error = 0; |
3163 | |
3164 | if ((error = mac_system_check_info(kauth_cred_get(), info_type: "kern.msgbuf" ))) { |
3165 | return error; |
3166 | } |
3167 | #endif |
3168 | |
3169 | if (suser(cred: kauth_cred_get(), acflag: (u_short *)0) == 0) { |
3170 | return log_dmesg(buffer, buffersize, retval); |
3171 | } else { |
3172 | return EPERM; |
3173 | } |
3174 | } |
3175 | |
3176 | /* ********* process control sets on self only */ |
3177 | int |
3178 | proc_setcontrol(int pid, int flavor, uint64_t arg, user_addr_t buffer, uint32_t buffersize, __unused int32_t * retval) |
3179 | { |
3180 | struct proc * pself = PROC_NULL; |
3181 | int error = 0; |
3182 | uint32_t pcontrol = (uint32_t)arg; |
3183 | struct uthread *ut = NULL; |
3184 | char name_buf[MAXTHREADNAMESIZE]; |
3185 | |
3186 | pself = current_proc(); |
3187 | if (pid != proc_getpid(pself)) { |
3188 | return EINVAL; |
3189 | } |
3190 | |
3191 | /* Do we have permission to look into this? */ |
3192 | if ((error = proc_security_policy(targetp: pself, PROC_INFO_CALL_SETCONTROL, flavor, NO_CHECK_SAME_USER))) { |
3193 | goto out; |
3194 | } |
3195 | |
3196 | switch (flavor) { |
3197 | case PROC_SELFSET_PCONTROL: { |
3198 | if (pcontrol > P_PCMAX) { |
3199 | return EINVAL; |
3200 | } |
3201 | proc_lock(pself); |
3202 | /* reset existing control setting while retaining action state */ |
3203 | pself->p_pcaction &= PROC_ACTION_MASK; |
3204 | /* set new control state */ |
3205 | pself->p_pcaction |= pcontrol; |
3206 | proc_unlock(pself); |
3207 | } |
3208 | break; |
3209 | |
3210 | case PROC_SELFSET_THREADNAME: { |
3211 | /* |
3212 | * This is a bit ugly, as it copies the name into the kernel, and then |
3213 | * invokes bsd_setthreadname again to copy it into the uthread name |
3214 | * buffer. Hopefully this isn't such a hot codepath that an additional |
3215 | * MAXTHREADNAMESIZE copy is a big issue. |
3216 | */ |
3217 | if (buffersize > (MAXTHREADNAMESIZE - 1)) { |
3218 | return ENAMETOOLONG; |
3219 | } |
3220 | |
3221 | ut = current_uthread(); |
3222 | |
3223 | bzero(s: name_buf, MAXTHREADNAMESIZE); |
3224 | error = copyin(buffer, name_buf, buffersize); |
3225 | |
3226 | if (!error) { |
3227 | bsd_setthreadname(uth: ut, tid: thread_tid(thread: current_thread()), name: name_buf); |
3228 | } |
3229 | } |
3230 | break; |
3231 | |
3232 | case PROC_SELFSET_VMRSRCOWNER: { |
3233 | /* need to to be superuser */ |
3234 | if (suser(cred: kauth_cred_get(), acflag: (u_short *)0) != 0) { |
3235 | error = EPERM; |
3236 | goto out; |
3237 | } |
3238 | |
3239 | proc_lock(pself); |
3240 | /* reset existing control setting while retaining action state */ |
3241 | pself->p_lflag |= P_LVMRSRCOWNER; |
3242 | proc_unlock(pself); |
3243 | } |
3244 | break; |
3245 | |
3246 | case PROC_SELFSET_DELAYIDLESLEEP: { |
3247 | #if CONFIG_DELAY_IDLE_SLEEP |
3248 | /* mark or clear the process property to delay idle sleep disk IO */ |
3249 | if (pcontrol != 0) { |
3250 | OSBitOrAtomic(P_DELAYIDLESLEEP, &pself->p_flag); |
3251 | } else { |
3252 | OSBitAndAtomic(~((uint32_t)P_DELAYIDLESLEEP), &pself->p_flag); |
3253 | } |
3254 | } |
3255 | break; |
3256 | #else |
3257 | error = ENOTSUP; |
3258 | goto out; |
3259 | } |
3260 | #endif |
3261 | |
3262 | default: |
3263 | error = ENOTSUP; |
3264 | } |
3265 | |
3266 | out: |
3267 | return error; |
3268 | } |
3269 | |
3270 | #if CONFIG_MEMORYSTATUS |
3271 | |
3272 | int |
3273 | proc_dirtycontrol(int pid, int flavor, uint64_t arg, int32_t *retval) |
3274 | { |
3275 | struct proc *target_p; |
3276 | int error = 0; |
3277 | uint32_t pcontrol = (uint32_t)arg; |
3278 | kauth_cred_t my_cred; |
3279 | boolean_t self = FALSE; |
3280 | boolean_t child = FALSE; |
3281 | boolean_t zombref = FALSE; |
3282 | pid_t selfpid; |
3283 | |
3284 | target_p = proc_find(pid); |
3285 | |
3286 | if (target_p == PROC_NULL) { |
3287 | if (flavor == PROC_DIRTYCONTROL_GET) { |
3288 | target_p = proc_find_zombref(pid); |
3289 | zombref = 1; |
3290 | } |
3291 | |
3292 | if (target_p == PROC_NULL) { |
3293 | return ESRCH; |
3294 | } |
3295 | } |
3296 | |
3297 | my_cred = kauth_cred_get(); |
3298 | |
3299 | /* Do we have permission to look into this? */ |
3300 | if ((error = proc_security_policy(targetp: target_p, PROC_INFO_CALL_DIRTYCONTROL, flavor, NO_CHECK_SAME_USER))) { |
3301 | goto out; |
3302 | } |
3303 | |
3304 | selfpid = proc_selfpid(); |
3305 | if (pid == selfpid) { |
3306 | self = TRUE; |
3307 | } else if (target_p->p_ppid == selfpid) { |
3308 | child = TRUE; |
3309 | } |
3310 | |
3311 | switch (flavor) { |
3312 | case PROC_DIRTYCONTROL_TRACK: { |
3313 | /* Only allow the process itself, its parent, or root */ |
3314 | if ((self == FALSE) && (child == FALSE) && kauth_cred_issuser(cred: kauth_cred_get()) != TRUE) { |
3315 | error = EPERM; |
3316 | goto out; |
3317 | } |
3318 | |
3319 | error = memorystatus_dirty_track(p: target_p, pcontrol); |
3320 | } |
3321 | break; |
3322 | |
3323 | case PROC_DIRTYCONTROL_SET: { |
3324 | /* Check privileges; use cansignal() here since the process could be terminated */ |
3325 | if (!cansignal(current_proc(), my_cred, target_p, SIGKILL)) { |
3326 | error = EPERM; |
3327 | goto out; |
3328 | } |
3329 | |
3330 | error = memorystatus_dirty_set(p: target_p, self, pcontrol); |
3331 | } |
3332 | break; |
3333 | |
3334 | case PROC_DIRTYCONTROL_GET: { |
3335 | /* No permissions check - dirty state is freely available */ |
3336 | if (retval) { |
3337 | *retval = memorystatus_dirty_get(p: target_p, FALSE); |
3338 | } else { |
3339 | error = EINVAL; |
3340 | } |
3341 | } |
3342 | break; |
3343 | |
3344 | case PROC_DIRTYCONTROL_CLEAR: { |
3345 | /* Check privileges; use cansignal() here since the process could be terminated */ |
3346 | if (!cansignal(current_proc(), my_cred, target_p, SIGKILL)) { |
3347 | error = EPERM; |
3348 | goto out; |
3349 | } |
3350 | |
3351 | error = memorystatus_dirty_clear(p: target_p, pcontrol); |
3352 | } |
3353 | break; |
3354 | } |
3355 | |
3356 | out: |
3357 | if (zombref) { |
3358 | proc_drop_zombref(p: target_p); |
3359 | } else { |
3360 | proc_rele(p: target_p); |
3361 | } |
3362 | |
3363 | return error; |
3364 | } |
3365 | #else |
3366 | |
3367 | int |
3368 | proc_dirtycontrol(__unused int pid, __unused int flavor, __unused uint64_t arg, __unused int32_t *retval) |
3369 | { |
3370 | return ENOTSUP; |
3371 | } |
3372 | |
3373 | #endif /* CONFIG_MEMORYSTATUS */ |
3374 | |
3375 | /* |
3376 | * proc_terminate_with_proc() provides support for sudden termination by proc_t. |
3377 | * SIGKILL is issued to tracked, clean processes; otherwise, |
3378 | * SIGTERM is sent. |
3379 | */ |
3380 | static int |
3381 | proc_terminate_with_proc(proc_t p, int32_t *retval) |
3382 | { |
3383 | kauth_cred_t uc = kauth_cred_get(); |
3384 | int sig; |
3385 | |
3386 | /* Check privileges; if SIGKILL can be issued, then SIGTERM is also OK */ |
3387 | if (!cansignal(current_proc(), uc, p, SIGKILL)) { |
3388 | return EPERM; |
3389 | } |
3390 | |
3391 | /* Not allowed to sudden terminate yourself */ |
3392 | if (p == current_proc()) { |
3393 | return EPERM; |
3394 | } |
3395 | |
3396 | #if CONFIG_MEMORYSTATUS |
3397 | /* Determine requisite signal to issue */ |
3398 | sig = memorystatus_on_terminate(p); |
3399 | #else |
3400 | sig = SIGTERM; |
3401 | #endif |
3402 | |
3403 | proc_set_task_policy(task: proc_task(p), TASK_POLICY_ATTRIBUTE, |
3404 | TASK_POLICY_TERMINATED, TASK_POLICY_ENABLE); |
3405 | |
3406 | psignal(p, sig); |
3407 | *retval = sig; |
3408 | |
3409 | return 0; |
3410 | } |
3411 | |
3412 | /* |
3413 | * proc_terminate() provides support for sudden termination by PID. |
3414 | * SIGKILL is issued to tracked, clean processes; otherwise, |
3415 | * SIGTERM is sent. |
3416 | */ |
3417 | int |
3418 | proc_terminate(int pid, int32_t *retval) |
3419 | { |
3420 | int error = 0; |
3421 | proc_t p; |
3422 | |
3423 | #if 0 |
3424 | /* XXX: Check if these are necessary */ |
3425 | AUDIT_ARG(pid, pid); |
3426 | #endif |
3427 | |
3428 | if (pid <= 0 || retval == NULL) { |
3429 | return EINVAL; |
3430 | } |
3431 | |
3432 | if ((p = proc_find(pid)) == NULL) { |
3433 | return ESRCH; |
3434 | } |
3435 | |
3436 | #if 0 |
3437 | /* XXX: Check if these are necessary */ |
3438 | AUDIT_ARG(process, p); |
3439 | #endif |
3440 | |
3441 | error = proc_terminate_with_proc(p, retval); |
3442 | proc_rele(p); |
3443 | return error; |
3444 | } |
3445 | |
3446 | #define cryptexdrsrWriteEntitlement "com.apple.private.cryptexd-rsr-write" |
3447 | |
3448 | int proc_rsr_in_progress = 0; |
3449 | |
3450 | static int |
3451 | sysctl_proc_rsr_in_progress SYSCTL_HANDLER_ARGS |
3452 | { |
3453 | int error = 0; |
3454 | |
3455 | if (req->newptr != 0) { |
3456 | /* Write entitlement is required for updating this sysctl */ |
3457 | if (!IOCurrentTaskHasEntitlement(cryptexdrsrWriteEntitlement)) { |
3458 | return EPERM; |
3459 | } |
3460 | } |
3461 | error = sysctl_handle_int(oidp, arg1, arg2, req); |
3462 | |
3463 | return error; |
3464 | } |
3465 | |
3466 | SYSCTL_PROC(_kern, OID_AUTO, proc_rsr_in_progress, |
3467 | CTLTYPE_INT | CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED, |
3468 | &proc_rsr_in_progress, 0, |
3469 | sysctl_proc_rsr_in_progress, "I" , "" ); |
3470 | |
3471 | struct proc_terminate_all_rsr_struct { |
3472 | int ptss_sig; |
3473 | int32_t *ptss_retval; |
3474 | }; |
3475 | |
3476 | |
3477 | static int |
3478 | proc_signal_with_audittoken(user_addr_t uaudittoken, int signum, int32_t *retval) |
3479 | { |
3480 | int error = 0; |
3481 | pid_t pid = 0; |
3482 | proc_t target_proc = PROC_NULL; |
3483 | audit_token_t token = INVALID_AUDIT_TOKEN_VALUE; |
3484 | kauth_cred_t uc = kauth_cred_get(); |
3485 | |
3486 | if (!((signum > 0) && (signum < NSIG))) { |
3487 | error = EINVAL; |
3488 | goto out; |
3489 | } |
3490 | |
3491 | if (uaudittoken != USER_ADDR_NULL) { |
3492 | error = copyin(uaudittoken, &token, sizeof(audit_token_t)); |
3493 | if (error != 0) { |
3494 | goto out; |
3495 | } |
3496 | } else { |
3497 | error = EINVAL; |
3498 | goto out; |
3499 | } |
3500 | |
3501 | pid = token.val[5]; |
3502 | if (pid <= 0) { |
3503 | error = EINVAL; |
3504 | goto out; |
3505 | } |
3506 | |
3507 | if ((target_proc = proc_find(pid)) == PROC_NULL) { |
3508 | error = ESRCH; |
3509 | goto out; |
3510 | } |
3511 | |
3512 | /* Check the target proc pidversion */ |
3513 | int pidversion = proc_pidversion(target_proc); |
3514 | if (pidversion != token.val[7]) { |
3515 | error = ESRCH; |
3516 | goto out; |
3517 | } |
3518 | |
3519 | /* Check the calling process privileges, proceed if it can signal the target process */ |
3520 | if (!cansignal(current_proc(), uc, target_proc, signum)) { |
3521 | error = EPERM; |
3522 | goto out; |
3523 | } |
3524 | |
3525 | psignal(p: target_proc, sig: signum); |
3526 | out: |
3527 | if (target_proc != PROC_NULL) { |
3528 | proc_rele(p: target_proc); |
3529 | } |
3530 | |
3531 | *retval = 0; |
3532 | |
3533 | return error; |
3534 | } |
3535 | |
3536 | /* |
3537 | * proc_terminate_with_audittoken() provides support for sudden termination by audit token. |
3538 | * SIGKILL is issued to tracked, clean processes; otherwise, |
3539 | * SIGTERM is sent. |
3540 | */ |
3541 | static int |
3542 | proc_terminate_with_audittoken(user_addr_t uaudittoken, int32_t *retval) |
3543 | { |
3544 | int error = 0; |
3545 | pid_t pid = 0; |
3546 | proc_t target_proc = PROC_NULL; |
3547 | audit_token_t token = INVALID_AUDIT_TOKEN_VALUE; |
3548 | |
3549 | if (uaudittoken != USER_ADDR_NULL) { |
3550 | error = copyin(uaudittoken, &token, sizeof(audit_token_t)); |
3551 | if (error != 0) { |
3552 | goto out; |
3553 | } |
3554 | } else { |
3555 | error = EINVAL; |
3556 | goto out; |
3557 | } |
3558 | |
3559 | pid = token.val[5]; |
3560 | if (pid <= 0) { |
3561 | error = EINVAL; |
3562 | goto out; |
3563 | } |
3564 | |
3565 | if ((target_proc = proc_find(pid)) == PROC_NULL) { |
3566 | error = ESRCH; |
3567 | goto out; |
3568 | } |
3569 | |
3570 | /* Check the target proc pidversion */ |
3571 | int pidversion = proc_pidversion(target_proc); |
3572 | if (pidversion != token.val[7]) { |
3573 | error = ESRCH; |
3574 | goto out; |
3575 | } |
3576 | |
3577 | error = proc_terminate_with_proc(p: target_proc, retval); |
3578 | |
3579 | out: |
3580 | if (target_proc != PROC_NULL) { |
3581 | proc_rele(p: target_proc); |
3582 | } |
3583 | return error; |
3584 | } |
3585 | |
3586 | /* |
3587 | * proc_terminate_all_rsr() provides support for sudden termination of all |
3588 | * rsr processes. Based of user arguments, either a SIGKILL or SIGTERM is |
3589 | * sent to the process. EPERM would be returned if the current process |
3590 | * did not have privilege to send signal to a process that was marked as a |
3591 | * rsr process. Processes before that would have received the signal. |
3592 | */ |
3593 | |
3594 | static int |
3595 | proc_terminate_all_rsr(__unused int pid, __unused int flavor, int arg, int32_t *retval) |
3596 | { |
3597 | int error = 0; |
3598 | |
3599 | if (arg != SIGKILL && arg != SIGTERM) { |
3600 | return EINVAL; |
3601 | } |
3602 | |
3603 | if (retval == NULL) { |
3604 | return EINVAL; |
3605 | } |
3606 | |
3607 | *retval = 0; |
3608 | struct proc_terminate_all_rsr_struct callback_arg = { |
3609 | .ptss_sig = arg, .ptss_retval = retval, |
3610 | }; |
3611 | proc_iterate(PROC_ALLPROCLIST, callout: proc_terminate_all_rsr_callback, |
3612 | arg: (void *)&callback_arg, filterfn: proc_terminate_all_rsr_filter, NULL); |
3613 | |
3614 | if (*retval != 0) { |
3615 | error = *retval; |
3616 | *retval = 0; |
3617 | } else { |
3618 | *retval = arg; |
3619 | } |
3620 | return error; |
3621 | } |
3622 | |
3623 | static int |
3624 | proc_terminate_all_rsr_filter(proc_t p, __unused void *arg) |
3625 | { |
3626 | return !!(p->p_ladvflag & P_RSR); |
3627 | } |
3628 | |
3629 | static int |
3630 | proc_terminate_all_rsr_callback(proc_t p, void *arg) |
3631 | { |
3632 | struct proc_terminate_all_rsr_struct *callback_arg = arg; |
3633 | kauth_cred_t uc = kauth_cred_get(); |
3634 | int sig = callback_arg->ptss_sig; |
3635 | int32_t *retval = callback_arg->ptss_retval; |
3636 | |
3637 | /* Check privileges; if SIGKILL can be issued, then SIGTERM is also OK */ |
3638 | if (!cansignal(current_proc(), uc, p, SIGKILL)) { |
3639 | *retval = EPERM; |
3640 | return PROC_RETURNED_DONE; |
3641 | } |
3642 | |
3643 | proc_set_task_policy(task: proc_task(p), TASK_POLICY_ATTRIBUTE, |
3644 | TASK_POLICY_TERMINATED, TASK_POLICY_ENABLE); |
3645 | |
3646 | psignal(p, sig); |
3647 | return PROC_RETURNED; |
3648 | } |
3649 | |
3650 | /* |
3651 | * copy stat64 structure into vinfo_stat structure. |
3652 | */ |
3653 | static void |
3654 | munge_vinfo_stat(struct stat64 *sbp, struct vinfo_stat *vsbp) |
3655 | { |
3656 | bzero(s: vsbp, n: sizeof(struct vinfo_stat)); |
3657 | |
3658 | vsbp->vst_dev = sbp->st_dev; |
3659 | vsbp->vst_mode = sbp->st_mode; |
3660 | vsbp->vst_nlink = sbp->st_nlink; |
3661 | vsbp->vst_ino = sbp->st_ino; |
3662 | vsbp->vst_uid = sbp->st_uid; |
3663 | vsbp->vst_gid = sbp->st_gid; |
3664 | vsbp->vst_atime = sbp->st_atimespec.tv_sec; |
3665 | vsbp->vst_atimensec = sbp->st_atimespec.tv_nsec; |
3666 | vsbp->vst_mtime = sbp->st_mtimespec.tv_sec; |
3667 | vsbp->vst_mtimensec = sbp->st_mtimespec.tv_nsec; |
3668 | vsbp->vst_ctime = sbp->st_ctimespec.tv_sec; |
3669 | vsbp->vst_ctimensec = sbp->st_ctimespec.tv_nsec; |
3670 | vsbp->vst_birthtime = sbp->st_birthtimespec.tv_sec; |
3671 | vsbp->vst_birthtimensec = sbp->st_birthtimespec.tv_nsec; |
3672 | vsbp->vst_size = sbp->st_size; |
3673 | vsbp->vst_blocks = sbp->st_blocks; |
3674 | vsbp->vst_blksize = sbp->st_blksize; |
3675 | vsbp->vst_flags = sbp->st_flags; |
3676 | vsbp->vst_gen = sbp->st_gen; |
3677 | vsbp->vst_rdev = sbp->st_rdev; |
3678 | vsbp->vst_qspare[0] = sbp->st_qspare[0]; |
3679 | vsbp->vst_qspare[1] = sbp->st_qspare[1]; |
3680 | } |
3681 | |
3682 | int |
3683 | proc_pid_rusage(int pid, int flavor, user_addr_t buffer, __unused int32_t *retval) |
3684 | { |
3685 | proc_t p; |
3686 | int error; |
3687 | int zombie = 0; |
3688 | |
3689 | if ((p = proc_find(pid)) == PROC_NULL) { |
3690 | if ((p = proc_find_zombref(pid)) == PROC_NULL) { |
3691 | return ESRCH; |
3692 | } |
3693 | zombie = 1; |
3694 | } |
3695 | |
3696 | /* Do we have permission to look into this? */ |
3697 | if ((error = proc_security_policy(targetp: p, PROC_INFO_CALL_PIDRUSAGE, flavor, CHECK_SAME_USER))) { |
3698 | goto out; |
3699 | } |
3700 | |
3701 | error = proc_get_rusage(proc: p, flavor, buffer, is_zombie: zombie); |
3702 | |
3703 | out: |
3704 | if (zombie) { |
3705 | proc_drop_zombref(p); |
3706 | } else { |
3707 | proc_rele(p); |
3708 | } |
3709 | |
3710 | return error; |
3711 | } |
3712 | |
3713 | void |
3714 | proc_archinfo(proc_t p, struct proc_archinfo *pai) |
3715 | { |
3716 | proc_lock(p); |
3717 | pai->p_cputype = p->p_cputype; |
3718 | pai->p_cpusubtype = p->p_cpusubtype; |
3719 | proc_unlock(p); |
3720 | } |
3721 | |
3722 | void |
3723 | proc_pidcoalitioninfo(proc_t p, struct proc_pidcoalitioninfo *ppci) |
3724 | { |
3725 | bzero(s: ppci, n: sizeof(*ppci)); |
3726 | proc_coalitionids(p, ppci->coalition_id); |
3727 | } |
3728 | |
3729 | int |
3730 | proc_pidexitreasoninfo(proc_t p, struct proc_exitreasoninfo *peri, struct proc_exitreasonbasicinfo *pberi) |
3731 | { |
3732 | uint32_t reason_data_size = 0; |
3733 | int error = 0; |
3734 | pid_t selfpid = proc_selfpid(); |
3735 | |
3736 | proc_lock(p); |
3737 | |
3738 | /* |
3739 | * One (and only one) of peri and pberi must be non-NULL. |
3740 | */ |
3741 | assert((peri != NULL) || (pberi != NULL)); |
3742 | assert((peri == NULL) || (pberi == NULL)); |
3743 | |
3744 | /* |
3745 | * Allow access to the parent of the exiting |
3746 | * child or the parent debugger only. |
3747 | */ |
3748 | do { |
3749 | if (p->p_ppid == selfpid) { |
3750 | break; /* parent => ok */ |
3751 | } |
3752 | if ((p->p_lflag & P_LTRACED) != 0 && |
3753 | (p->p_oppid == selfpid)) { |
3754 | break; /* parent-in-waiting => ok */ |
3755 | } |
3756 | proc_unlock(p); |
3757 | return EACCES; |
3758 | } while (0); |
3759 | |
3760 | if (p->p_exit_reason == OS_REASON_NULL) { |
3761 | proc_unlock(p); |
3762 | return ENOENT; |
3763 | } |
3764 | |
3765 | if (p->p_exit_reason->osr_kcd_buf != NULL) { |
3766 | reason_data_size = (uint32_t)kcdata_memory_get_used_bytes(kcd: &p->p_exit_reason->osr_kcd_descriptor); |
3767 | } |
3768 | |
3769 | if (peri != NULL) { |
3770 | peri->eri_namespace = p->p_exit_reason->osr_namespace; |
3771 | peri->eri_code = p->p_exit_reason->osr_code; |
3772 | peri->eri_flags = p->p_exit_reason->osr_flags; |
3773 | |
3774 | if ((peri->eri_kcd_buf == 0) || (peri->eri_reason_buf_size < reason_data_size)) { |
3775 | proc_unlock(p); |
3776 | return ENOMEM; |
3777 | } |
3778 | |
3779 | peri->eri_reason_buf_size = reason_data_size; |
3780 | if (reason_data_size != 0) { |
3781 | error = copyout(p->p_exit_reason->osr_kcd_buf, (user_addr_t)peri->eri_kcd_buf, reason_data_size); |
3782 | } |
3783 | } else { |
3784 | pberi->beri_namespace = p->p_exit_reason->osr_namespace; |
3785 | pberi->beri_code = p->p_exit_reason->osr_code; |
3786 | pberi->beri_flags = p->p_exit_reason->osr_flags; |
3787 | pberi->beri_reason_buf_size = reason_data_size; |
3788 | } |
3789 | |
3790 | proc_unlock(p); |
3791 | |
3792 | return error; |
3793 | } |
3794 | |
3795 | /* |
3796 | * Wrapper to provide NOTE_EXIT_DETAIL and NOTE_EXITSTATUS |
3797 | * It mimics the data that is typically captured by the |
3798 | * EVFILT_PROC, NOTE_EXIT event mechanism. |
3799 | * See filt_proc() in kern_event.c. |
3800 | */ |
3801 | int |
3802 | proc_pidnoteexit(proc_t p, uint64_t flags, uint32_t *data) |
3803 | { |
3804 | uint32_t exit_data = 0; |
3805 | uint32_t exit_flags = (uint32_t)flags; |
3806 | |
3807 | proc_lock(p); |
3808 | |
3809 | /* |
3810 | * Allow access to the parent of the exiting |
3811 | * child or the parent debugger only. |
3812 | */ |
3813 | do { |
3814 | pid_t selfpid = proc_selfpid(); |
3815 | |
3816 | if (p->p_ppid == selfpid) { |
3817 | break; /* parent => ok */ |
3818 | } |
3819 | if ((p->p_lflag & P_LTRACED) != 0 && |
3820 | (p->p_oppid == selfpid)) { |
3821 | break; /* parent-in-waiting => ok */ |
3822 | } |
3823 | proc_unlock(p); |
3824 | return EACCES; |
3825 | } while (0); |
3826 | |
3827 | if ((exit_flags & NOTE_EXITSTATUS) != 0) { |
3828 | /* The signal and exit status */ |
3829 | exit_data |= (p->p_xstat & NOTE_PDATAMASK); |
3830 | } |
3831 | |
3832 | if ((exit_flags & NOTE_EXIT_DETAIL) != 0) { |
3833 | /* The exit detail */ |
3834 | if ((p->p_lflag & P_LTERM_DECRYPTFAIL) != 0) { |
3835 | exit_data |= NOTE_EXIT_DECRYPTFAIL; |
3836 | } |
3837 | |
3838 | if ((p->p_lflag & P_LTERM_JETSAM) != 0) { |
3839 | exit_data |= NOTE_EXIT_MEMORY; |
3840 | |
3841 | switch (p->p_lflag & P_JETSAM_MASK) { |
3842 | case P_JETSAM_VMPAGESHORTAGE: |
3843 | exit_data |= NOTE_EXIT_MEMORY_VMPAGESHORTAGE; |
3844 | break; |
3845 | case P_JETSAM_VMTHRASHING: |
3846 | exit_data |= NOTE_EXIT_MEMORY_VMTHRASHING; |
3847 | break; |
3848 | case P_JETSAM_FCTHRASHING: |
3849 | exit_data |= NOTE_EXIT_MEMORY_FCTHRASHING; |
3850 | break; |
3851 | case P_JETSAM_VNODE: |
3852 | exit_data |= NOTE_EXIT_MEMORY_VNODE; |
3853 | break; |
3854 | case P_JETSAM_HIWAT: |
3855 | exit_data |= NOTE_EXIT_MEMORY_HIWAT; |
3856 | break; |
3857 | case P_JETSAM_PID: |
3858 | exit_data |= NOTE_EXIT_MEMORY_PID; |
3859 | break; |
3860 | case P_JETSAM_IDLEEXIT: |
3861 | exit_data |= NOTE_EXIT_MEMORY_IDLE; |
3862 | break; |
3863 | } |
3864 | } |
3865 | |
3866 | if ((proc_getcsflags(p) & CS_KILLED) != 0) { |
3867 | exit_data |= NOTE_EXIT_CSERROR; |
3868 | } |
3869 | } |
3870 | |
3871 | proc_unlock(p); |
3872 | |
3873 | *data = exit_data; |
3874 | |
3875 | return 0; |
3876 | } |
3877 | |
3878 | int |
3879 | proc_piddynkqueueinfo(int pid, int flavor, kqueue_id_t kq_id, |
3880 | user_addr_t ubuf, uint32_t bufsize, int32_t *retval) |
3881 | { |
3882 | proc_t p; |
3883 | int err; |
3884 | |
3885 | if (ubuf == USER_ADDR_NULL) { |
3886 | return EFAULT; |
3887 | } |
3888 | |
3889 | p = proc_find(pid); |
3890 | if (p == PROC_NULL) { |
3891 | return ESRCH; |
3892 | } |
3893 | |
3894 | err = proc_security_policy(targetp: p, PROC_INFO_CALL_PIDDYNKQUEUEINFO, flavor: 0, CHECK_SAME_USER); |
3895 | if (err) { |
3896 | goto out; |
3897 | } |
3898 | |
3899 | switch (flavor) { |
3900 | case PROC_PIDDYNKQUEUE_INFO: |
3901 | err = kevent_copyout_dynkqinfo(proc: p, kq_id, ubuf, ubufsize: bufsize, size_out: retval); |
3902 | break; |
3903 | case PROC_PIDDYNKQUEUE_EXTINFO: |
3904 | err = kevent_copyout_dynkqextinfo(proc: p, kq_id, ubuf, ubufsize: bufsize, nknotes_out: retval); |
3905 | break; |
3906 | default: |
3907 | err = ENOTSUP; |
3908 | break; |
3909 | } |
3910 | |
3911 | out: |
3912 | proc_rele(p); |
3913 | |
3914 | return err; |
3915 | } |
3916 | |
3917 | #if CONFIG_PROC_UDATA_STORAGE |
3918 | int |
3919 | proc_udata_info(int pid, int flavor, user_addr_t buffer, uint32_t bufsize, int32_t *retval) |
3920 | { |
3921 | int err = 0; |
3922 | proc_t p; |
3923 | |
3924 | p = proc_find(pid); |
3925 | if (p == PROC_NULL) { |
3926 | return ESRCH; |
3927 | } |
3928 | |
3929 | /* |
3930 | * Only support calls against oneself for the moment. |
3931 | */ |
3932 | if (proc_getpid(p) != proc_selfpid()) { |
3933 | err = EACCES; |
3934 | goto out; |
3935 | } |
3936 | |
3937 | if (bufsize != sizeof(p->p_user_data)) { |
3938 | err = EINVAL; |
3939 | goto out; |
3940 | } |
3941 | |
3942 | switch (flavor) { |
3943 | case PROC_UDATA_INFO_SET: |
3944 | err = copyin(buffer, &p->p_user_data, sizeof(p->p_user_data)); |
3945 | break; |
3946 | case PROC_UDATA_INFO_GET: |
3947 | err = copyout(&p->p_user_data, buffer, sizeof(p->p_user_data)); |
3948 | break; |
3949 | default: |
3950 | err = ENOTSUP; |
3951 | break; |
3952 | } |
3953 | |
3954 | out: |
3955 | proc_rele(p); |
3956 | |
3957 | if (err == 0) { |
3958 | *retval = 0; |
3959 | } |
3960 | |
3961 | return err; |
3962 | } |
3963 | #endif /* CONFIG_PROC_UDATA_STORAGE */ |
3964 | |
3965 | |
3966 | int |
3967 | proc_set_dyld_images(int pid, user_addr_t buffer, uint32_t buffersize, int32_t *retval) |
3968 | { |
3969 | struct proc * pself = PROC_NULL; |
3970 | task_t task = TASK_NULL; |
3971 | |
3972 | pself = current_proc(); |
3973 | if (pid != proc_getpid(pself)) { |
3974 | *retval = -1; |
3975 | return EINVAL; |
3976 | } |
3977 | |
3978 | if (buffer == 0) { |
3979 | *retval = -1; |
3980 | return EINVAL; |
3981 | } |
3982 | |
3983 | task = proc_task(pself); |
3984 | if (task != TASK_NULL) { |
3985 | /* don't need to copyin the buffer. just setting the buffer range in the task struct */ |
3986 | if (task_set_dyld_info(task, addr: buffer, size: buffersize)) { |
3987 | *retval = -1; |
3988 | return EINVAL; |
3989 | } |
3990 | } |
3991 | |
3992 | *retval = 0; |
3993 | return 0; |
3994 | } |
3995 | |