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fs: fix error handling for retried get/set of security descriptor

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The retry code path did not filter `ERROR_NOT_SUPPORTED`. Just call the
original function a second time to correctly follow the low privilege
code path.
This commit is contained in:
Michael Eischer 2024-08-26 19:36:43 +02:00
parent 3e4c1ea196
commit ac5bc7c2f9
1 changed files with 2 additions and 8 deletions
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10
internal/fs/sd_windows.go
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@ -59,10 +59,7 @@ func GetSecurityDescriptor(filePath string) (securityDescriptor *[]byte, err err
if !useLowerPrivileges && isHandlePrivilegeNotHeldError(err) {
// If ERROR_PRIVILEGE_NOT_HELD is encountered, fallback to backups/restores using lower non-admin privileges.
lowerPrivileges.Store(true)
sd, err = getNamedSecurityInfoLow(filePath)
if err != nil {
return nil, fmt.Errorf("get low-level named security info failed with: %w", err)
}
return GetSecurityDescriptor(filePath)
} else if errors.Is(err, windows.ERROR_NOT_SUPPORTED) {
return nil, nil
} else {
@ -123,10 +120,7 @@ func SetSecurityDescriptor(filePath string, securityDescriptor *[]byte) error {
if !useLowerPrivileges && isHandlePrivilegeNotHeldError(err) {
// If ERROR_PRIVILEGE_NOT_HELD is encountered, fallback to backups/restores using lower non-admin privileges.
lowerPrivileges.Store(true)
err = setNamedSecurityInfoLow(filePath, dacl)
if err != nil {
return fmt.Errorf("set low-level named security info failed with: %w", err)
}
return SetSecurityDescriptor(filePath, securityDescriptor)
} else {
return fmt.Errorf("set named security info failed with: %w", err)
}