ls: Operation not Permitted - unix

Question

I have a running a fuse fs with options allow_other and umask 0. This gives me a set of files with permissions set to 777. Though when I try to ls -l in the directory containing the files I get the following output:
ls: name: Operation not permitted
ls: tags: Operation not permitted
ls: location: Operation not permitted
ls: ext: Operation not permitted
ls: experiment_id: Operation not permitted
ls: file_path: Operation not permitted
Can anyone tell me why despite having global permissions (777) I am still getting operation not permitted?
On running strace, I get the following traces:
lstat("tags", {st_mode=S_IFDIR|0777, st_size=4096, ...}) = 0
lgetxattr("tags", "security.selinux", 0x112ae80, 255) = -1 EPERM (Operation not permitted)
write(2, "ls: ", 4ls: ) = 4
write(2, "tags", 4tags) = 4
write(2, ": Operation not permitted", 25: Operation not permitted) = 25
write(2, "\n", 1
) = 1
lstat("location", {st_mode=S_IFDIR|0777, st_size=4096, ...}) = 0
lgetxattr("location", "security.selinux", 0x112aea0, 255) = -1 EPERM (Operation not permitted)
write(2, "ls: ", 4ls: ) = 4
write(2, "location", 8location) = 8
write(2, ": Operation not permitted", 25: Operation not permitted) = 25
write(2, "\n", 1) = 1
lstat("ext", {st_mode=S_IFDIR|0777, st_size=4096, ...}) = 0
lgetxattr("ext", "security.selinux", 0x112aec0, 255) = -1 EPERM (Operation not permitted)
write(2, "ls: ", 4ls: ) = 4
write(2, "ext", 3ext) = 3
write(2, ": Operation not permitted", 25: Operation not permitted) = 25
write(2, "\n", 1) = 1
lstat("experiment_id", {st_mode=S_IFDIR|0777, st_size=4096, ...}) = 0
lgetxattr("experiment_id", "security.selinux", 0x112aee0, 255) = -1 EPERM (Operation not permitted)
write(2, "ls: ", 4ls: ) = 4
write(2, "experiment_id", 13experiment_id) = 13
write(2, ": Operation not permitted", 25: Operation not permitted) = 25
write(2, "\n", 1) = 1
lstat("file_path", {st_mode=S_IFDIR|0777, st_size=4096, ...}) = 0
lgetxattr("file_path", "security.selinux", 0x112af00, 255) = -1 EPERM (Operation not permitted)
write(2, "ls: ", 4ls: ) = 4
write(2, "file_path", 9file_path) = 9
write(2, ": Operation not permitted", 25: Operation not permitted) = 25
write(2, "\n", 1) = 1
So from the trace, it looks like its trying to get the selinux attribute even though its disabled on my system.
cat /etc//sysconfig/selinux
SELINUX=disabled
SELINUXTYPE=targeted

Answer 1

follow the below steps to resolve the issue. I tried below steps, worked for me
1.Pull down the  Apple menu and choose ‘System Preferences’
2.Choose “Security & Privacy” control panel
3.Now select the “Privacy” tab, then from the left-side menu select “Full Disk Access”
4.Click the lock icon in the lower left corner of the preference panel and authenticate with an admin level login
5.Now click the [+] plus button to add an application with full disk access
6.Navigate to the /Applications/Utilities/ folder and choose “Terminal” to grant Terminal with Full Disk Access privileges
7.Relaunch Terminal, the “Operation not permitted” error messages will be gone

Answer 2

Set permissions on the directory that contains the files.

Answer 3

Use strace(1) at least as
strace ls -l
this will show you all the syscalls done by ls and you would recognize which FUSE file-system related syscalls(2) are failing.
Perhaps stat(2) is failing on individual directory entries like tags etc...?
You are probably forgetting to implement some operations in your FUSE.

Answer 4

The problem was with my getxattr implementation. I was returning -1 on error which translated to EPERM, instead I should have returned ENODATA which is more correct error case for my logic. This fixed those errors as well.
https://gowalker.org/github.com/hanwen/go-fuse/fuse