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tc/m_tunnel_key: Add dest UDP port to tunnel key action

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Enhance tunnel key action 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 10:07:47 +02:00 committed by Stephen Hemminger
parent 41aa17ff46
commit 449c709c38
2 changed files with 38 additions and 0 deletions
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6
man/man8/tc-tunnel_key.8
View File

@ -15,6 +15,7 @@ tunnel_key - Tunnel metadata manipulation
.BR dst_ip
.IR ADDRESS
.BI id " KEY_ID"
.BI dst_port " UDP_PORT"
.SH DESCRIPTION
The
@ -61,6 +62,8 @@ Set tunnel metadata to be used by the IP tunnel device. Requires
and
.B dst_ip
options.
.B dst_port
is optional.
.RS
.TP
.B id
@ -71,6 +74,9 @@ Outer header source IP address (IPv4 or IPv6)
.TP
.B dst_ip
Outer header destination IP address (IPv4 or IPv6)
.TP
.B dst_port
Outer header destination UDP port
.RE
.SH EXAMPLES
The following example encapsulates incoming ICMP packets on eth0 into a vxlan

32
tc/m_tunnel_key.c
View File

@ -60,6 +60,20 @@ static int tunnel_key_parse_key_id(const char *str, int type,
return ret;
}
static int tunnel_key_parse_dst_port(char *str, int type, struct nlmsghdr *n)
{
int ret;
__be16 dst_port;
ret = get_be16(&dst_port, str, 10);
if (ret)
return -1;
addattr16(n, MAX_MSG, type, dst_port);
return 0;
}
static int parse_tunnel_key(struct action_util *a, int *argc_p, char ***argv_p,
int tca_id, struct nlmsghdr *n)
{
@ -128,6 +142,14 @@ static int parse_tunnel_key(struct action_util *a, int *argc_p, char ***argv_p,
return -1;
}
has_key_id = 1;
} else if (matches(*argv, "dst_port") == 0) {
NEXT_ARG();
ret = tunnel_key_parse_dst_port(*argv,
TCA_TUNNEL_KEY_ENC_DST_PORT, n);
if (ret < 0) {
fprintf(stderr, "Illegal \"dst port\"\n");
return -1;
}
} else if (matches(*argv, "help") == 0) {
usage();
} else {
@ -197,6 +219,14 @@ static void tunnel_key_print_key_id(FILE *f, const char *name,
fprintf(f, "\n\t%s %d", name, rta_getattr_be32(attr));
}
static void tunnel_key_print_dst_port(FILE *f, char *name,
struct rtattr *attr)
{
if (!attr)
return;
fprintf(f, "\n\t%s %d", name, rta_getattr_be16(attr));
}
static int print_tunnel_key(struct action_util *au, FILE *f, struct rtattr *arg)
{
struct rtattr *tb[TCA_TUNNEL_KEY_MAX + 1];
@ -231,6 +261,8 @@ static int print_tunnel_key(struct action_util *au, FILE *f, struct rtattr *arg)
tb[TCA_TUNNEL_KEY_ENC_IPV6_DST]);
tunnel_key_print_key_id(f, "key_id",
tb[TCA_TUNNEL_KEY_ENC_KEY_ID]);
tunnel_key_print_dst_port(f, "dst_port",
tb[TCA_TUNNEL_KEY_ENC_DST_PORT]);
break;
}
fprintf(f, " %s", action_n2a(parm->action));