Message ID | 20180309100722.21627-1-simon.horman@netronome.com |
---|---|
State | Accepted, archived |
Delegated to: | David Ahern |
Headers | show |
Series | [iproute2/net-next] tc: f_flower: Add support for matching first frag packets | expand |
On 3/9/18 2:07 AM, Simon Horman wrote: > From: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com> > > Add matching support for distinguishing between first and later fragmented > packets. > > # tc filter add dev eth0 protocol ip parent ffff: \ > flower indev eth0 \ > ip_flags firstfrag \ > ip_proto udp \ > action mirred egress redirect dev eth1 > > # tc filter add dev eth0 protocol ip parent ffff: \ > flower indev eth0 \ > ip_flags nofirstfrag \ > ip_proto udp \ > action mirred egress redirect dev eth1 > > Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com> > Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com> > Signed-off-by: Simon Horman <simon.horman@netronome.com> > --- > man/man8/tc-flower.8 | 8 ++++++-- > tc/f_flower.c | 1 + > 2 files changed, 7 insertions(+), 2 deletions(-) applied to iproute2-next.
diff --git a/man/man8/tc-flower.8 b/man/man8/tc-flower.8 index 768eda3d52bd..a561443b9978 100644 --- a/man/man8/tc-flower.8 +++ b/man/man8/tc-flower.8 @@ -258,8 +258,12 @@ is a 16 bit UDP dst port. .BI ip_flags " IP_FLAGS" .I IP_FLAGS may be either -.BR frag " or " nofrag -to match on fragmented packets or not respectively. +.BR frag ", " nofrag ", " firstfrag " or " nofirstfrag +where frag and nofrag could be used to match on fragmented packets or not, +respectively. firstfrag and nofirstfrag can be used to further distinguish +fragmented packet. firstfrag can be used to indicate the first fragmented +packet. nofirstfrag can be used to indicates subsequent fragmented packets +or non-fragmented packets. .SH NOTES As stated above where applicable, matches of a certain layer implicitly depend on the matches of the next lower layer. Precisely, layer one and two matches diff --git a/tc/f_flower.c b/tc/f_flower.c index 5a4ec832bc19..9d4bfd2f808b 100644 --- a/tc/f_flower.c +++ b/tc/f_flower.c @@ -155,6 +155,7 @@ struct flag_to_string { static struct flag_to_string flags_str[] = { { TCA_FLOWER_KEY_FLAGS_IS_FRAGMENT, FLOWER_IP_FLAGS, "frag" }, + { TCA_FLOWER_KEY_FLAGS_FRAG_IS_FIRST, FLOWER_IP_FLAGS, "firstfrag" }, }; static int flower_parse_matching_flags(char *str,