Google Inc.

Microsoft Technology Licensing, LLC

Snowflake Inc.

Brandon S Baker

Derek Denny-Brown

Andong Zhan

Mark M Manning

Uday R Savagaonkar

David Benson Cross

Nelly L Porter

Shuvabrata Ganguly

Haowei Yu

Haiyong Wang

Sergey Simakov

Niranjan Kumar Sharma

Scott Field

Nicholas Stephen Judge

Nitya Kumar Sharma

Michael A Halcrow

Matthew Riley

Nicholas V Finco

Sven Tenzing Choden Konigsmark

Michael David Marr

Benjamin Charles Serebrin

Eric P Traut

Joseph S Beda, Iii

Carl Melvin Ellison

David N Cutler

Forrest Curtis Foltz

Suyash Sinha

Scott A Field

Joy Ganguly

Xuguang Yang

Thomas D I Fahrig

Uday Ramesh Savagsonkar

Systems and methods are disclosed for securely executing user-defined functions within a cloud data platform. A method involves receiving, via hardware processors, a request to execute a user-defined function (UDF) contained within a sandbox process. The UDF comprises code for performing specified operations that necessitate access to external resources. To facilitate this access, a secure egress path is established using an overlay network designed to isolate the UDF's network traffic from other processes. Authentication and authorization details for the UDF are managed externally to the sandbox process, ensuring that the UDF's functionality remains orthogonal to the cloud data platform's operations. This approach enables the secure and controlled execution of UDFs, allowing them to interact with external systems while maintaining the integrity and security of the cloud data platform environment.

Secure execution of user-defined functions

This disclosure provides methods and techniques of performing source network address translation (SNAT) at a packet sender (e.g., a client device) instead of a gateway device (e.g., a proxy device). The present disclosure performs a SNAT operation at the packet sender, relieving the gateway device from the SNAT operation to perform other duties (e.g., policy enforcement). An example method of network address translation includes modifying, by a processing device at a data packet origination device (e.g., a client device), network address information in an internet protocol (IP) header of a packet using a public IP address. The method further includes sending the packet to a public network based on the public IP address.

Client-operated and port-range lease based source network address translation

A method for tracing function execution includes instantiating, by at least one hardware processor of a computing node, a user-defined function (UDF) server associated with a plurality of configurations. A plurality of child processes of the UDF server are instantiated using the plurality of configurations. A filtering process is configured at an operating system (OS) kernel of the computing node using a child process of the plurality of child processes. The filtering process includes a set of system call categories and a corresponding set of filtering policies. A system call received at the OS kernel and associated with a system call category of the set of system call categories is detected to violate a corresponding filtering policy of the set of filtering policies. A tracing event of the system call is initiated based on the detecting.

Tracing function execution in a database system

Methods, systems, and computer programs are presented for enabling any sandboxed user-defined function code to securely access the Internet via a cloud data platform. A remote procedure call is received by a cloud data platform from a user-defined function (UDF) executing within a sandbox process. The UDF includes code related to at least one operation to be performed. The cloud data platform provides an overlay network to establish a secure egress path for UDF external access. The cloud data platform enables the UDF executing in the sandbox process to initiate a network call.

Secure network access from sandboxed applications

A method for tracing function execution includes instantiating, by at least one hardware processor of a computing node, a user code runtime configured with access to an operating system (OS) kernel of the computing node. The user code runtime is configured with a first set of filtering policies associated with a first set of allowed system calls. The OS kernel is configured with a second set of filtering policies associated with a second set of allowed system calls. A system call initiated by the user code runtime is detected to violate one or both of the first set of allowed system calls and the second set of allowed system calls. A trace of the system call is initiated based on the detecting.

Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for instantiating and managing systems that utilize hierarchal enclaves in a cloud environment.

System of enclaves

A system includes at least one hardware processor of a computing node and at least one memory storing instructions that cause the at least one hardware processor to perform operations. The operations include instantiating a user code runtime to execute within a sandbox process. The sandbox process configures access by the user code runtime to an operating system (OS) kernel of the computing node. The OS kernel is configured with one or more filtering policies. A determination is performed of whether a system call received by the OS kernel violates the one or more filtering policies. The system call is triggered by at least one operation of the user code runtime. A tracing event is instantiated to trace execution of the system call based on the determination.

Tracing user-defined functions in a database system

Provided herein are systems and methods for tracing and tracing supervision of UDFs in a database system. For example, a method includes receiving a user-defined function (UDF), the UDF including code related to at least one operation to be performed. A user code runtime is instantiated to execute the code of the UDF as a child process. The user code runtime includes a filtering process configured with a plurality of filtering policies. A system call of the at least one operation is detected based on a notification from an operating system (OS) manager, the notification identifying the system call. A determination is made on whether performing the system call is permitted based on the plurality of filtering policies. A report is generated based on the determining.

Tracing supervisor for UDFs in a database system

Techniques are disclosed for coalescing timer ticks generated by timers used to service guest operating systems executing in virtual machines. By coalescing timer ticks a logical processor can enter a low power mode thereby reducing power consumed by the system.

Coalescing periodic timer expiration in guest operating systems in a virtualized environment

The present disclosure relates to a distributed disk image deployment during virtual machine instance creation, and to deploying a virtual machine instances based on disk image locality. On example method includes receiving, at a first computing node, a request to create a virtual machine instance, the request identifying a disk image to be associated with the virtual machine instance; determining a set of computing nodes from which to transfer the disk image on a locality of the first computing node to each computing node in the set of computing nodes, generating a set of requests for a plurality of portions of the disk image, sending at least one request from the set of requests to each computing node in the set of computing nodes; and receiving, from at least one of the set of computing nodes, one or more portions of the disk image.

Distributed virtual machine disk image deployment

A method includes receiving a break-glass ticket scope identifying one or more secure containers of a secure container system. The secure containers are instantiated in a non-debuggable state and execute corresponding secure execution environments for contents of the corresponding secure containers. The method also includes generating a pending break-glass ticket having the break-glass ticket scope and transmitting the pending break-glass ticket to a break-glass approver for approver. In response to receiving an approved break-glass ticket from the break-glass approver, the method includes altering an access setting of the one or more secure containers defined in the break-glass ticket scope. The altered access setting allows debugging of the respective contents of the one or more secure containers executing the corresponding secure execution environments.

Cryptographic content-based break-glass scheme for debug of trusted-execution environments in remote systems

Principles for enabling power management techniques for virtual machines. In a virtual machine environment, a physical computer system may maintain management facilities to direct and control one or more virtual machines executing thereon. In some techniques described herein, the management facilities may be adapted to place a virtual processor in an idle state in response to commands from a guest operating system. One or more signaling mechanisms may be supported such that the guest operating system will command the management facilities to place virtual processors in the idle state.

Power saving operating system for virtual environment

The present disclosure relates to a distributed disk image deployment during virtual machine instance creation, and to deploying a virtual machine instances based on disk image locality. On example method includes receiving a request to create a virtual machine instance identifying a disk image; determining one or more storage devices storing the disk image; determining a distance measurement between each of a plurality of computing nodes and the one or more storage devices storing the disk image; selecting a computing node on which to create the virtual machine instance based on a locality of the computing node to a storage device from the one or more storage devices storing the disk image, the locality including the distance measurement between the computing node and the storage device; and creating the virtual machine instance on the computing node using the disk image from the storage device.

Growing community of inventors

Redmond, WA, United States of America

Brandon S Baker