security_socket_connect¶

Intro¶

security_socket_connect - An event that captures details when a socket attempts to make a connection.

Description¶

This event is triggered when a socket tries to establish a connection. The eBPF program is attached to the kernel's security_socket_connect function and captures information about the socket, as well as the remote address it's trying to connect to.

Given the importance of network communications for many applications, monitoring socket connections can be crucial for security, diagnostics, and compliance reasons.

Arguments¶

sockfd (int): The file descriptor referring to the socket attempting the connection.
remote_addr (struct sockaddr*): A pointer to the structure that holds the remote address details. Depending on the address family (IPv4, IPv6, or UNIX), it can point to different specific structures (struct sockaddr_in, struct sockaddr_in6, or struct sockaddr_un).

Hooks¶

trace_security_socket_connect¶

Type¶

Kprobe (using kprobe/security_socket_connect).

Purpose¶

To monitor and extract data whenever a socket tries to connect. Depending on the address family of the socket, different pieces of data are saved to a buffer, which are then submitted to user-space for further processing or logging.

Example Use Case¶

A security application might leverage this event to track all outbound connections from a system. This can be vital for identifying potentially malicious communications or connections to unknown endpoints. Additionally, diagnostics tools can utilize this information to debug network-related issues in applications.

Issues¶

Monitoring every socket connection might introduce overhead, especially in systems with frequent network communications. It's essential to balance the need for monitoring with potential performance implications.

security_socket_create
security_socket_listen
security_socket_accept
security_socket_bind
security_socket_setsockopt

This document was automatically generated by OpenAI and reviewed by a Human.