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Merge pull request #648 from chenjie4255/add_write_ea_perm

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dll & fuse: Added "AddWriteEaPerm" mount option.
This commit is contained in:
Bill Zissimopoulos
2026-02-05 12:07:23 +02:00
committed by GitHub
parent 2aa682ffa1 4dbea1f298
commit aed8bb745f
3 changed files with 43 additions and 1 deletions
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src/dll/fuse/fuse_intf.c
+38 -1
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@@ -545,6 +545,39 @@ static NTSTATUS fsp_fuse_intf_GetFileInfoFunnel(FSP_FILE_SYSTEM *FileSystem,
return STATUS_SUCCESS;
}
static VOID fsp_fuse_intf_AddWriteEaAccess(
PSECURITY_DESCRIPTOR SecurityDescriptor)
{
BOOL DaclPresent, DaclDefaulted;
PACL Acl;
ACL_SIZE_INFORMATION AclSizeInfo;
PACE_HEADER Ace;
PACCESS_MASK AccessMask;
if (!GetSecurityDescriptorDacl(SecurityDescriptor, &DaclPresent, &Acl, &DaclDefaulted))
return;
if (0 == Acl)
return;
if (!GetAclInformation(Acl, &AclSizeInfo, sizeof AclSizeInfo, AclSizeInformation))
return;
for (DWORD I = 0; I < AclSizeInfo.AceCount; I++)
{
if (!GetAce(Acl, I, &Ace))
return;
if (Ace->AceType == ACCESS_ALLOWED_ACE_TYPE)
AccessMask = &((PACCESS_ALLOWED_ACE)Ace)->Mask;
else if (Ace->AceType == ACCESS_DENIED_ACE_TYPE)
AccessMask = &((PACCESS_DENIED_ACE)Ace)->Mask;
else
continue;
if (*AccessMask & FILE_WRITE_DATA)
*AccessMask |= FILE_WRITE_EA;
}
}
static NTSTATUS fsp_fuse_intf_GetSecurityEx(FSP_FILE_SYSTEM *FileSystem,
const char *PosixPath, struct fuse_file_info *fi,
PUINT32 PFileAttributes,
@@ -578,8 +611,12 @@ static NTSTATUS fsp_fuse_intf_GetSecurityEx(FSP_FILE_SYSTEM *FileSystem,
}
*PSecurityDescriptorSize = SecurityDescriptorSize;
if (0 != SecurityDescriptorBuf)
if (0 != SecurityDescriptorBuf)
{
memcpy(SecurityDescriptorBuf, SecurityDescriptor, SecurityDescriptorSize);
if (f->add_write_ea_access)
fsp_fuse_intf_AddWriteEaAccess(SecurityDescriptorBuf);
}
}
if (0 != PFileAttributes)