From: Andreas Roeseler <andreas.a.roese...@gmail.com> Date: Wed, 17 Feb 2021 10:07:38 -0800
> The popular utility ping has several severe limitations such as the > inability to query specific interfaces on a node and requiring > bidirectional connectivity between the probing and probed interfaces. > RFC 8335 attempts to solve these limitations by creating the new utility > PROBE which is a specialized ICMP message that makes use of the ICMP > Extention Structure outlined in RFC 4884. > > This patchset adds definitions for the ICMP Extended Echo Request and > Reply (PROBE) types for both IPV4 and IPV6, adds a sysctl to enable > response to PROBE messages, expands the list of supported ICMP messages > to accommodate PROBE types, and adds functionality to respond to PROBE > requests. > > Changes since v1: > - Add AFI definitions > - Switch to functions such as dev_get_by_name and ip_dev_find to lookup > net devices > > Changes since v2: > Suggested by Willem de Brujin <willemdebrujin.ker...@gmail.com> > - Add verification of incoming messages before looking up netdev > - Add prefix for PROBE specific defined variables > - Use proc_dointvec_minmax with zero and one > - Create struct icmp_ext_echo_iio for parsing incoming packet > Reported-by: kernel test robot <l...@intel.com> > Reported-by: Dan Carpenter <dan.carpen...@oracle.com> > - Include net/addrconf.h library for ipv6_dev_find Thi is too late for the current merge window, sorry. Please resubmit when net-next opens back up, thank you.
