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tc/cls_flower: Add dest UDP port to tunnel params

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Enhance IP tunnel parameters by adding destination UDP port.

Signed-off-by: Hadar Hen Zion <hadarh@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
This commit is contained in:
Hadar Hen Zion 2016-12-13 10:07:46 +02:00 committed by Stephen Hemminger
parent b723368caa
commit 41aa17ff46
2 changed files with 32 additions and 1 deletions
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8
man/man8/tc-flower.8
View File

@ -39,6 +39,8 @@ flower \- flow based traffic control filter
.IR KEY-ID " | {"
.BR enc_dst_ip " | " enc_src_ip " } { "
.IR ipv4_address " | " ipv6_address " } | "
.B enc_dst_port
.IR UDP-PORT " | "
.SH DESCRIPTION
The
.B flower
@ -129,11 +131,15 @@ which have to be specified in beforehand.
.BI enc_dst_ip " ADDRESS"
.TQ
.BI enc_src_ip " ADDRESS"
.TQ
.BI enc_dst_port " NUMBER"
Match on IP tunnel metadata. Key id
.I NUMBER
is a 32 bit tunnel key id (e.g. VNI for VXLAN tunnel).
.I ADDRESS
must be a valid IPv4 or IPv6 address.
must be a valid IPv4 or IPv6 address. Dst port
.I NUMBER
is a 16 bit UDP dst port.
.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

25
tc/f_flower.c
View File

@ -275,6 +275,20 @@ static int flower_parse_key_id(const char *str, int type, struct nlmsghdr *n)
return ret;
}
static int flower_parse_enc_port(char *str, int type, struct nlmsghdr *n)
{
int ret;
__be16 port;
ret = get_be16(&port, str, 10);
if (ret)
return -1;
addattr16(n, MAX_MSG, type, port);
return 0;
}
static int flower_parse_opt(struct filter_util *qu, char *handle,
int argc, char **argv, struct nlmsghdr *n)
{
@ -482,6 +496,14 @@ static int flower_parse_opt(struct filter_util *qu, char *handle,
fprintf(stderr, "Illegal \"enc_key_id\"\n");
return -1;
}
} else if (matches(*argv, "enc_dst_port") == 0) {
NEXT_ARG();
ret = flower_parse_enc_port(*argv,
TCA_FLOWER_KEY_ENC_UDP_DST_PORT, n);
if (ret < 0) {
fprintf(stderr, "Illegal \"enc_dst_port\"\n");
return -1;
}
} else if (matches(*argv, "action") == 0) {
NEXT_ARG();
ret = parse_action(&argc, &argv, TCA_FLOWER_ACT, n);
@ -754,6 +776,9 @@ static int flower_print_opt(struct filter_util *qu, FILE *f,
flower_print_key_id(f, "enc_key_id",
tb[TCA_FLOWER_KEY_ENC_KEY_ID]);
flower_print_port(f, "enc_dst_port",
tb[TCA_FLOWER_KEY_ENC_UDP_DST_PORT]);
if (tb[TCA_FLOWER_FLAGS]) {
__u32 flags = rta_getattr_u32(tb[TCA_FLOWER_FLAGS]);