-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Dan Searle wrote: > Hi, > > I am developing a TCP server using the standard, socket(), bind(), > listen() and accept() calls to implement a TCP server in user land. > > I have searched the web but can't find anything useful regarding a > problem I am having... > > My question is, given that I have a TCP socket file descriptor as > returned by accept() as follows: > > sock = accept(s_sock, (struct sockaddr *)addr, (socklen_t *)&addr_length); > > Is there a way, using an IOCTL or SYSCALL to get down the protocol > stack to retrieve the source MAC address of the new TCP socket that > accept() returns a file descriptor for? > > My server needs to know the source MAC of TCP connections to it, so > that I can make decisions on how to handle the request based on the > source MAC address. > > At present I am using a messy call to popen() calling the arp program > in a shell. I tried looking up /proc/net/arp directly, but sometimes > there is no ARP entry in the cache, even though the accept() call > succeeded and I have a new TCP socket. > > Regards, Dan... > > -- After reading Matti's response, I'd like you to clarify this. Are you looking for the MAC address of the machine that the code is running on, or some remote client? - -- Topher Fischer GnuPG Fingerprint: 3597 1B8D C7A5 C5AF 2E19 EFF5 2FC3 BE99 D123 6674 javert42@xxxxxxxxxx | http://www.thetopher.com -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (GNU/Linux) Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org iD8DBQFGhDhQL8O+mdEjZnQRAj2MAJ9oNW02NomngIQlghxmXFMccWB0hgCeKe+o IGq6QgUYpIjMu/t+rg8tS8U= =lt10 -----END PGP SIGNATURE----- - To unsubscribe from this list: send the line "unsubscribe linux-net" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
