Summary: SO_DETACH_FILTER does not accept any parameter, but code in sock.c check for it. Problem description: Trying to remove attached filter i got EINVAL (and the filter was left attached). The code setsockopt(fd, SOL_SOCKET, SO_DETACH_FILTER, 0, 0) is correct, but does work. Looking in sock.c i have found that SO_DETACH_FILTER is set after checking parameters of an option. It is not correct in this particular case (it should be handled like SO_DONTLINGER). Search for: SO_DETACH_FILTER in sock.c The problem persists up to 2.4.0-test10. Workaround: int dummy; setsockopt(fd, SOL_SOCKET, SO_DETACH_FILTER, &dummy, sizeof(int)); Keywords: networking filter setsockopt SO_DETACH_FILTER scripts/ver_linux: -- Versions installed: (if some fields are empty or looks -- unusual then possibly you have very old versions) Linux ws018 2.2.17 #6 Thu Nov 16 12:30:28 CET 2000 i686 unknown Kernel modules 2.3.11 Gnu C 2.95.2 Binutils 2.9.5.0.37 Linux C Library 2.1.3 Dynamic linker ldd: version 1.9.11 Procps 2.0.6 Mount 2.10f Net-tools 2.05 Console-tools 0.2.3 Sh-utils 2.0 Modules Loaded 3c59x nls_koi8-r ntfs smbfs vfat fat nls_iso8859-2 nls_iso8859-1 nls_cp866 binfmt_misc autofs nfs lockd sunrpc nbd Sincerely yours, Alexander Riesen - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/
