Paolo Abeni 3d6d9e6e67 ss: do not emit warn while dumping MPTCP on old kernels ... Prior to this commit, running 'ss' on a kernel older than v5.9 bumps an error message: RTNETLINK answers: Invalid argument When asked to dump protocol number > 255 - that is: MPTCP - 'ss' adds an INET_DIAG_REQ_PROTOCOL attribute, unsupported by the older kernel. Avoid the warning ignoring filter issues when INET_DIAG_REQ_PROTOCOL is used. Additionally older kernel end-up invoking tcpdiag_send(), which in turn will try to dump DCCP socks. Bail early in such function, as the kernel does not implement an MPTCPDIAG_GET request. Reported-by: "Rantala, Tommi T. (Nokia - FI/Espoo)" <tommi.t.rantala@nokia.com> Fixes: 9c3be2c0ee ("ss: mptcp: add msk diag interface support") Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>		2021-02-02 14:17:14 -08:00
..
.gitignore	make yacc usage POSIX compatible	2020-01-20 09:43:22 -08:00
arpd.c	libnetlink: Add filter function to rtnl_neighdump_req	2019-01-04 12:17:11 -08:00
ifstat.c	misc: fix compiler warning in ifstat and nstat	2020-11-29 16:20:31 -08:00
lnstat_util.c	lnstat_util: Make sure buffer is NUL-terminated	2017-09-01 12:10:54 -07:00
lnstat.c	lnstat: use same version as iproute2	2020-08-03 10:02:47 -07:00
lnstat.h	lnstat: use same version as iproute2	2020-08-03 10:02:47 -07:00
Makefile	ss: add checks for bc filter support	2020-05-13 14:28:38 +00:00
nstat.c	misc: fix compiler warning in ifstat and nstat	2020-11-29 16:20:31 -08:00
rtacct.c	replace SNAPSHOT with auto-generated version string	2020-08-03 10:02:47 -07:00
ss_util.h	ss: add checks for bc filter support	2020-05-13 14:28:38 +00:00
ss.c	ss: do not emit warn while dumping MPTCP on old kernels	2021-02-02 14:17:14 -08:00
ssfilter_check.c	ss: add checks for bc filter support	2020-05-13 14:28:38 +00:00
ssfilter.h	ss: add checks for bc filter support	2020-05-13 14:28:38 +00:00
ssfilter.y	ss: add checks for bc filter support	2020-05-13 14:28:38 +00:00