Enhanced protocol socket domain
An enhanced address domain is presented herein. A system can comprise a processor; and a memory that stores executable instructions that, when executed by the processor, facilitate performance of operations, comprising: creating an upper-layer socket of an enhanced address domain; allocating a protocol control block (PCB) and associating the PCB with the upper-layer socket—the PCB storing information representing a private state of the upper-layer socket; creating a lower-layer socket of an existing address domain—the lower-layer socket referenced from the upper-layer socket using the PCB; and installing upcall(s) on the lower-layer socket to be intercepted via the enhanced address domain. In an aspect, the upper-layer socket supports enhancement(s) to the existing address domain and a socket type of the lower-layer socket.
1. A system, comprising:
a processor; and
a memory that stores executable instructions that, when executed by the processor, facilitate performance of operations, comprising:
creating an upper-layer socket of an enhanced address domain;
creating a lower-layer socket of an existing address domain;
allocating a protocol control block in the memory that stores information representing an address of the lower-layer socket and a first state of the upper-layer socket with respect to a first use of the upper-layer socket;
installing one or more upcalls on the lower-layer socket to be intercepted via the enhanced address domain, wherein the one or more upcalls correspond to a second use of the lower-layer socket; and
in response to determining that an upcall of the one or more upcalls has been intercepted, updating the upper-layer socket with a second state of the lower-layer socket, wherein the second state of the lower-layer socket has been stored in a control page that is accessible from a user space comprising a user-mode portion of the memory, and wherein the control page is accessible from a kernel space comprising a protected area of the memory.
2. The system of claim 1 , wherein the creating of the upper-layer socket comprises creating the upper-layer socket via a socket system call or a kernel socket application programming interface.
3. The system of claim 1 , wherein the creating of the lower-layer socket comprises creating the lower-layer socket via a kernel socket application programming interface.
4. The system of claim 1 , wherein the lower-layer socket is accessible from the upper-layer socket.
5. The system of claim 1 , wherein the upper-layer socket is programmable via a socket system call or a kernel socket application programming interface.
6. The system of claim 1 , wherein the existing address domain comprises at least one of an AF_INET address domain or an AF_INET6 address domain.
7. The system of claim 1 , wherein the upper-layer socket supports one or more enhancements to the existing address domain and a socket type of the lower-layer socket.
8. The system of claim 7 , wherein the one or more enhancements comprise maintaining the control page comprising:
allocating the control page from the user-mode portion of the memory; and
associating the control page with the upper-layer socket.
9. The system of claim 7 , wherein the one or more enhancements comprise maintaining the control page, wherein the control page comprises a collection of state information and other information, wherein the state information and the other information correspond to the upper-layer socket and the lower-layer socket, and wherein the state information comprises the first state and the second state.
10. The system of claim 1 , wherein the operations further comprise:
modifying, from the enhanced address domain, the control page with information representing respective states and other related information of the upper-layer socket and the lower-layer socket, and wherein the respective states comprise the first state of the upper-layer socket and the second state of the lower-layer socket.
11. The system of claim 10 , wherein the operations further comprise:
obtaining, from a user-mode portion of the memory, the respective states or the other related information from the control page.
12. A method, comprising:
generating, by a system comprising a processor, a first socket of an enhanced address domain and a second socket of an existing address domain;
generating, by the system, a protocol control block (PCB) from a memory;
storing, by the system in the PCB, information representing an address of the second socket and a first state corresponding to a first utilization of the first socket;
installing, by the system, at least one upcall on the second socket to be intercepted via the enhanced address domain in response to a second utilization of the second socket; and
in response to intercepting an upcall of the at least one upcall, modifying the first socket based on a second state of the second socket, wherein the second state has been stored in a control page that is accessible from a user space comprising a user-mode portion of the memory, and wherein the control page is accessible from a kernel space comprising a protected area of the memory.
13. The method of claim 12 , wherein the generating the first socket comprises generating the first socket utilizing a socket system call or a kernel socket application programming interface.
14. The method of claim 12 , wherein the generating the second socket comprises generating the second socket utilizing a kernel socket application programming interface.
15. The method of claim 12 , wherein the operations further comprise:
controlling, by the system, features of the first socket utilizing at least one of a socket system call or a kernel socket application programming interface.
16. The method of claim 12 , wherein the operations further comprise:
creating, by the system using the first socket, at least one enhancement over the existing address domain.
17. The method of claim 16 , wherein the creating of the at least one enhancement comprises:
assigning the control page from the user-mode portion of the memory; and
associating the first socket with the control page.
18. A computer-readable storage medium comprising instructions that,
in response to execution, cause a computing system comprising a processor to perform operations, comprising:
generating an upper-layer socket of an enhanced address domain;
generating a lower-layer socket of an existing address domain;
allocating a protocol control block (PCB) from memory;
storing, in the PCB, information representing an address of the lower-layer socket and a private state of the upper-layer socket with respect to a use of the upper-layer socket; and
installing one or more upcalls on the lower-layer socket to be intercepted via the enhanced address domain, wherein an interception of an upcall of the one or more upcalls comprises updating the upper-layer socket as a function of a state of the lower-layer socket that has been stored in a control page that has been allocated from a user-mode portion of the memory, wherein the state of the lower-layer socket is accessible from the user-mode portion of the memory, and wherein the state of the lower-layer socket is accessible from a kernel space comprising a protected area of the memory.
19. The computer-readable storage medium of claim 18 , wherein the operations further comprise:
allocating the control page from the user-mode portion of the memory; and
associating the control page with the upper-layer socket.
20. The computer-readable storage medium of claim 19 , wherein the operations further comprise:
modifying, from the enhanced address domain, the control page with information representing respective states and other related information of the upper-layer socket and the lower-layer socket, and wherein the respective states comprise the state of the lower-layer socket.