ahl/apfs

apfs's Issues

fs_snapshot_mount: Operation not permitted

snaputil -s orig-fs / /mnt  
fs_snapshot_mount: Operation not permitted

Printing usage results in `sigkill`

snaputil
Usage:
fish: 'snaputil' terminated by signal SIGSEGV (Address boundary error)

Works in lldb:

lldb snaputil
(lldb) target create "snaputil"
Current executable set to 'snaputil' (x86_64).
(lldb) run
Process 59340 launched: '/var/root/desktop/apfs/snaputil' (x86_64)
Usage:
	snaputil -l <vol>			(List all snapshots)
	snaputil -c <snap> <vol>		(Create snapshot)
	snaputil -n <snap> <newname> <vol>	(Rename snapshot)
	snaputil -d <snap> <vol>		(Delete snapshot)
	snaputil -r <snap> <vol>		(Revert to snapshot)
	snaputil -s <snap> <vol> <mntpnt>	(Mount snapshot)
	snaputil -u <snap> <vol>
Process 59340 exited with status = 2 (0x00000002)
(lldb)

However, once you sign it, it sometimes doesn't work in lldb, but sometimes does.

(lldb) target create "snaputil"
Current executable set to 'snaputil' (x86_64).
(lldb) run
Process 57945 launched: '/usr/local/bin/snaputil' (x86_64)
Usage:
Process 57945 stopped
* thread #1, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0x0)
    frame #0: 0x00007fff5b443232 libsystem_c.dylib`strlen + 18
libsystem_c.dylib`strlen:
->  0x7fff5b443232 <+18>: pcmpeqb (%rdi), %xmm0
    0x7fff5b443236 <+22>: pmovmskb %xmm0, %esi
    0x7fff5b44323a <+26>: andq   $0xf, %rcx
    0x7fff5b44323e <+30>: orq    $-0x1, %rax
Target 0: (snaputil) stopped.
(lldb) bt
* thread #1, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0x0)
  * frame #0: 0x00007fff5b443232 libsystem_c.dylib`strlen + 18
    frame #1: 0x00007fff5b487a86 libsystem_c.dylib`__vfprintf + 4716
    frame #2: 0x00007fff5b4af059 libsystem_c.dylib`__v2printf + 473
    frame #3: 0x00007fff5b4af2e9 libsystem_c.dylib`__xvprintf + 310
    frame #4: 0x00007fff5b486742 libsystem_c.dylib`vfprintf_l + 54
    frame #5: 0x00007fff5b47f3c9 libsystem_c.dylib`fprintf + 176
    frame #6: 0x000000010000085a snaputil`usage at snapUtil.c:23 [opt]
    frame #7: 0x0000000100000cb0 snaputil`main(argc=<unavailable>, argv=<unavailable>) at snapUtil.c:0 [opt]
    frame #8: 0x00007fff5b3f3015 libdyld.dylib`start + 1
    frame #9: 0x00007fff5b3f3015 libdyld.dylib`start + 1
(lldb)

Did not list all snapshots

snaputil -l /
com.bombich.ccc.0036D798-8F7A-4F06-B29F-82FB84CD38C6.2021-05-28-133000
com.bombich.ccc.6B24A017-FB88-4256-86EF-C4BA87F4C159.2021-05-28-143000
com.bombich.ccc.613D384C-E35D-448D-A6E1-0EBBEB236E5E.2021-06-05-173000
com.bombich.ccc.D94674C1-A107-4907-B190-140B3A2E97CE.2021-06-05-183000
com.bombich.ccc.B8AF8A60-78E3-4BEB-B680-459F10C95A05.2021-06-06-173000
com.bombich.ccc.2A44B0FE-F2B8-4C58-B387-697E691B8902.2021-06-06-183000
com.bombich.ccc.B0CDECA8-A092-467E-80DB-5F575BC99FC5.2021-06-07-153000
com.bombich.ccc.78168168-2AF4-4097-9CFA-F25DE236821C.2021-06-07-170636
com.bombich.ccc.F3AD7925-9F44-44DC-B40A-19387525A9A8.2021-06-12-133000
com.bombich.ccc.F1452E2F-14B1-4518-B6F3-4834A4047CA3.2021-06-12-143000
com.bombich.ccc.FDDFA8D4-8F1B-4B4A-965C-A3726B1692D3.2021-06-12-153000
com.bombich.ccc.65DDC7ED-75D2-4003-B00C-3073B7ADF3DC.2021-06-12-173000
com.bombich.ccc.498AFB45-9877-4E60-B071-4E1CDD01C0F4.2021-06-12-183000
com.bombich.ccc.2F3F7C4A-31E9-4FFE-9E83-E6B618E8A277.2021-06-12-193000
com.bombich.ccc.ECBDE298-730B-484D-B682-93B00173BAEF.2021-06-13-103408
com.bombich.ccc.415A30B3-A692-4B3E-AD13-2E83B6540DAB.2021-06-13-133000
com.bombich.ccc.64B4E6DB-9343-4517-AA32-5BF3FEF5D4A4.2021-06-13-143000
com.bombich.ccc.16198C95-AB1F-4DA1-9851-BCCF2256989A.2021-07-03-133000
com.bombich.ccc.30FFFBE5-410A-478F-ABEF-CC553C2E8A23.2021-07-03-143000

tmutil listlocalsnapshots /
com.bombich.ccc.0036D798-8F7A-4F06-B29F-82FB84CD38C6.2021-05-28-133000
com.bombich.ccc.6B24A017-FB88-4256-86EF-C4BA87F4C159.2021-05-28-143000
com.bombich.ccc.613D384C-E35D-448D-A6E1-0EBBEB236E5E.2021-06-05-173000
com.bombich.ccc.D94674C1-A107-4907-B190-140B3A2E97CE.2021-06-05-183000
com.bombich.ccc.B8AF8A60-78E3-4BEB-B680-459F10C95A05.2021-06-06-173000
com.bombich.ccc.2A44B0FE-F2B8-4C58-B387-697E691B8902.2021-06-06-183000
com.bombich.ccc.B0CDECA8-A092-467E-80DB-5F575BC99FC5.2021-06-07-153000
com.bombich.ccc.78168168-2AF4-4097-9CFA-F25DE236821C.2021-06-07-170636
com.bombich.ccc.F3AD7925-9F44-44DC-B40A-19387525A9A8.2021-06-12-133000
com.bombich.ccc.F1452E2F-14B1-4518-B6F3-4834A4047CA3.2021-06-12-143000
com.bombich.ccc.FDDFA8D4-8F1B-4B4A-965C-A3726B1692D3.2021-06-12-153000
com.bombich.ccc.65DDC7ED-75D2-4003-B00C-3073B7ADF3DC.2021-06-12-173000
com.bombich.ccc.498AFB45-9877-4E60-B071-4E1CDD01C0F4.2021-06-12-183000
com.bombich.ccc.2F3F7C4A-31E9-4FFE-9E83-E6B618E8A277.2021-06-12-193000
com.bombich.ccc.ECBDE298-730B-484D-B682-93B00173BAEF.2021-06-13-103408
com.bombich.ccc.415A30B3-A692-4B3E-AD13-2E83B6540DAB.2021-06-13-133000
com.bombich.ccc.64B4E6DB-9343-4517-AA32-5BF3FEF5D4A4.2021-06-13-143000
com.bombich.ccc.16198C95-AB1F-4DA1-9851-BCCF2256989A.2021-07-03-133000
com.bombich.ccc.30FFFBE5-410A-478F-ABEF-CC553C2E8A23.2021-07-03-143000
com.bombich.ccc.FE5D8D6B-5508-44AC-97A1-43931EDBF3E9.2021-07-08-143000
com.bombich.ccc.84CE5D38-A64B-4305-8C93-D3C38801265F.2021-07-08-153000
com.bombich.ccc.0FBCF66D-0D5C-4E53-BB64-B375831C22D6.2021-07-08-163000
com.bombich.ccc.68FC4E8C-D9E1-43C6-A93E-C0ACDDA987E0.2021-07-08-173000
com.bombich.ccc.B9184608-F26F-40F8-A95A-4A8DC750F2AA.2021-07-08-183000
com.bombich.ccc.0C4A4D50-A11E-4DDF-9664-6FAE98AF575C.2021-07-08-193000
com.bombich.ccc.F83CB923-46FC-452A-AD05-17CF4C949550.2021-07-09-173000
com.bombich.ccc.BA5C7558-B2C1-40B9-8750-1CCE45250254.2021-07-09-183000
com.bombich.ccc.874120FE-1155-42E6-9D9D-FBFEFCD8FCE6.2021-07-10-133000
com.bombich.ccc.37F33486-17BE-4427-8E73-5FC700A05D2D.2021-07-10-143000
com.bombich.ccc.6D69EFF8-3D13-4707-9DBD-B948C1E46990.2021-07-23-113000
com.bombich.ccc.BF37F264-3931-4A53-BA63-73E97D57AD2E.2021-07-23-123000
com.bombich.ccc.D40DF4EA-F417-4798-B3F7-AB463C2DD8EA.2021-07-23-133000
com.bombich.ccc.DF633642-61FC-4644-94D2-F14D54479940.2021-07-23-143000
com.bombich.ccc.96058A5D-958F-4D4C-AB40-C355AF6F3A9C.2021-07-23-153000
com.bombich.ccc.973F0C92-08CC-4359-B379-A4781E832FC4.2021-07-23-173000
com.bombich.ccc.6C78CD7A-4194-4C87-8361-DF57317DE562.2021-07-23-183000
com.bombich.ccc.8AB9E818-A3E3-4EC4-A818-061EA602FAAA.2021-07-24-083000
com.bombich.ccc.77DB2690-EEA1-4186-88C7-C52A5CB98A7F.2021-07-24-093000
com.bombich.ccc.F021184E-3B7B-420B-A226-97123DACDE2F.2021-07-24-123000
com.bombich.ccc.95C5D2D1-8401-4952-B7F8-6408C142EDCF.2021-07-24-133000
com.bombich.ccc.C5D3F364-6A3C-46EA-BFA7-0E5677BD3961.2021-07-24-143000
com.bombich.ccc.C6727295-9F85-410F-82E0-F1D6EE97288C.2021-07-24-153000
com.bombich.ccc.70F6A32A-63B7-4733-9FE1-4B915A505E91.2021-07-29-143000
com.bombich.ccc.976FDD25-CB69-44C7-AB5F-E99A267046AC.2021-07-29-153000
com.bombich.ccc.FEB553BB-5C5E-494C-B5FA-6F65AB6B9803.2021-08-09-113000
com.bombich.ccc.6E9F48E8-0811-4DE5-BDA4-4F1F5FFE780A.2021-08-09-123000
com.bombich.ccc.83936C07-CA19-4968-BD10-CA3A1EEEF9E7.2021-08-12-133001
com.bombich.ccc.2F971397-CC81-4A5B-8F03-A7AAFB1D8710.2021-08-12-143003
com.bombich.ccc.FE5A0B61-24B0-46BF-A567-9AE2B3F3F5C2.2021-08-25-133000
com.bombich.ccc.90672F3E-8534-4638-BA81-4B3E331C5191.2021-08-25-153000
com.bombich.ccc.ED4DC237-DDA9-4478-ABB3-CCCA98AC4869.2021-08-25-163000
com.bombich.ccc.6093201A-8534-411D-8700-1C3B53CD0577.2021-08-25-193000
com.bombich.ccc.5D33DE59-84EC-41D2-B232-127E9CE6BFEC.2021-08-26-133000
com.bombich.ccc.C996DD71-C470-4CF9-8C29-FF2F73C47291.2021-08-26-153000
com.bombich.ccc.774A4BC6-D04F-4C36-A90D-B4C759D7C2D1.2021-08-26-165955
com.bombich.ccc.9F1901E4-1215-454E-9F9A-9F00F383A759.2021-08-27-123001
com.bombich.ccc.B6055D96-0BD2-4191-8FF4-7F96310AE3B8.2021-08-27-152928
com.bombich.ccc.E7C5F1A7-B764-4A3B-BD92-E8EF20C7A123.2021-08-27-163000
com.bombich.ccc.9564FF24-1B25-4228-8F50-C3A65A38E908.2021-08-27-173000
com.bombich.ccc.29B20611-A906-462D-BD32-1563230479BE.2021-08-27-183000
com.bombich.ccc.C15D619D-CB19-4625-A821-D945E12D4699.2021-08-27-193000
com.bombich.ccc.2A182610-FB06-4EB0-8F71-2557E314E839.2021-08-28-133000
com.bombich.ccc.D7BD4B86-6C0E-4820-9EB3-1A637BB9C319.2021-08-28-153000
com.bombich.ccc.3A9F4668-6836-49A2-8E68-E4139EC46ED1.2021-08-28-163000
com.bombich.ccc.846D82E8-BDDC-4E0E-90E5-7EC38EEB5B45.2021-08-28-173000
com.bombich.ccc.2670A3DA-F160-4A1D-999B-32168B1DF637.2021-08-28-183001
com.bombich.ccc.B5F7F3A9-9242-4F36-94F4-36F8320CC566.2021-08-29-123000
com.bombich.ccc.496D1005-BF6D-4568-999C-35B88C702F54.2021-08-29-173000
com.bombich.ccc.A18EACF9-6A0F-406C-BFE7-7D1DF98065C9.2021-08-31-113000
com.bombich.ccc.571DB7A1-8CE0-46CD-B53C-58AA27F5FC6C.2021-08-31-123000
com.bombich.ccc.C9B36C0D-659E-49F5-ADF1-C36EC6EA9504.2021-08-31-133000
com.bombich.ccc.B9D3CA89-CB43-4D55-859B-2F7EDB7C013A.2021-08-31-143000
com.bombich.ccc.924D0D33-4CD6-44D0-BCB4-CAD3E7DB9289.2021-08-31-153000
com.bombich.ccc.E66AA454-2A46-43E3-85F7-22188C0B914B.2021-08-31-170234
com.bombich.ccc.6E7BCC76-4F80-434B-8284-AC86C87B5BE6.2021-09-01-103000
com.bombich.ccc.193EE97C-03E3-4891-8744-A93977F49DFE.2021-09-01-113000
com.bombich.ccc.2F39960F-3770-451D-A9CC-BF7524E467AD.2021-09-01-183000
com.bombich.ccc.04A13977-1248-45E9-BBA6-0967E3E82D57.2021-09-01-193000
com.bombich.ccc.04A13977-1248-45E9-BBA6-0967E3E82D57.2021-09-01-193001
com.bombich.ccc.325F064E-1211-46E1-AFA3-1949FD3651CA.2021-09-01-193003
2021-09-01-21:09:00

Running snapUtil produces "fs_snapshot_create: Operation not permitted"

Hi,
Even though I ran snapUtil with elevated permissions:
sudo ./snapUtil -c first /Volumes/DATA01/
I'm getting
fs_snapshot_create: Operation not permitted

/Volumes/DATA01 is an APFS volume:
/dev/disk3s1 on /Volumes/DATA01 (apfs, local, nodev, nosuid, journaled, noowners)

Does this require disabling SIP?

I'm running macOS 10.14:
Darwin MMBP.local 18.0.0 Darwin Kernel Version 18.0.0: Wed Aug 22 20:13:40 PDT 2018; root:xnu-4903.201.2~1/RELEASE_X86_64 x86_64