bsc::net Namespace Reference

Namespaces
namespace	anonymous_namespace{SockDiag.cpp}
namespace	anonymous_namespace{SocketSnapshot.cpp}

Classes
class	DnsResolver
class	SocketSnapshot
struct	SockInfo

Functions
std::optional< SockInfo >	sockdiag_lookup_tcp (const std::string &src_ip, std::uint16_t src_port, const std::string &dst_ip, std::uint16_t dst_port)
std::optional< SockInfo >	sockdiag_lookup_udp (const std::string &src_ip, std::uint16_t src_port, const std::string &dst_ip, std::uint16_t dst_port)

Function Documentation

sockdiag_lookup_tcp()

std::optional< SockInfo > bsc::net::sockdiag_lookup_tcp	(	const std::string &	src_ip,
		std::uint16_t	src_port,
		const std::string &	dst_ip,
		std::uint16_t	dst_port )

Risolve un flow TCP (saddr:sport → daddr:dport) al suo inode + uid tramite NETLINK_SOCK_DIAG.

Parameters

src_ip/src_port	Endpoint locale (stringa IPv4 o IPv6)
dst_ip/dst_port	Endpoint remoto

Returns

SockInfo con inode e uid, o nullopt se il kernel non trova il socket

Thread-safe. Ogni chiamata crea/chiude il proprio netlink socket (operazione molto leggera).

Definition at line 118 of file SockDiag.cpp.

{
    if (src_ip.empty() || dst_ip.empty()) return std::nullopt;
    const bool is_v6 = src_ip.find(':') != std::string::npos ||
                       dst_ip.find(':') != std::string::npos;
    return sockdiag_query(is_v6 ? AF_INET6 : AF_INET, IPPROTO_TCP,
                          src_ip, src_port, dst_ip, dst_port);
}

References AF_INET, AF_INET6, IPPROTO_TCP, and sockdiag_lookup_tcp().

Referenced by bsc::net::SocketSnapshot::enrich_connection(), and sockdiag_lookup_tcp().

sockdiag_lookup_udp()

std::optional< SockInfo > bsc::net::sockdiag_lookup_udp	(	const std::string &	src_ip,
		std::uint16_t	src_port,
		const std::string &	dst_ip,
		std::uint16_t	dst_port )

Definition at line 130 of file SockDiag.cpp.

{
    if (src_ip.empty() || dst_ip.empty()) return std::nullopt;
    const bool is_v6 = src_ip.find(':') != std::string::npos ||
                       dst_ip.find(':') != std::string::npos;
    return sockdiag_query(is_v6 ? AF_INET6 : AF_INET, IPPROTO_UDP,
                          src_ip, src_port, dst_ip, dst_port);
}

References AF_INET, AF_INET6, IPPROTO_UDP, and sockdiag_lookup_udp().

Referenced by bsc::net::SocketSnapshot::enrich_connection(), and sockdiag_lookup_udp().