getsockcreatecon_raw - Linux
Overview
getsockcreatecon_raw configures and retrieves the SO_CREATECONN_RAW
socket option for a raw (AF_PACKET) socket. This option enables the socket to create connections without involving the transport layer stack, allowing for highly optimized communication on network devices. It is primarily used for high-performance applications that need to establish a direct channel with the network card, such as for network load balancing and packet monitoring.
Syntax
getsockcreatecon_raw <socket>
Parameters:
: Descriptor for the raw socket to configure.
Options/Flags
None.
Examples
Example 1: Enabling Connection Creation without Transport Layer:
sockfd = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
getsockcreatecon_raw(sockfd) == 1;
Common Issues
- Permission denied: Ensure that the user running the command has sufficient privileges to set socket options on the specified raw socket.
- Invalid socket: Confirm that the specified socket is a valid raw socket.
Integration
- tc: Configure traffic control rules and filters using tc in conjunction with the raw socket to control packet flow.
- iproute2: Use iproute2 commands to manage network interfaces, routes, and troubleshoot network issues.
Related Commands
- setsockcreatecon_raw: Configures the
SO_CREATECONN_RAW
socket option. - socket: Creates a new socket descriptor.
- connect: Establishes a connection to a specified destination address and port.