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tc: m_tunnel_key: Allow key-less tunnels 

Change the id parameter of the tunnel_key set action from mandatory to
optional.

Some tunneling protocols (e.g. GRE) specify the id as an optional field.

Signed-off-by: Adi Nissim <adin@mellanox.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
This commit is contained in:
Adi Nissim 2019-01-10 15:03:50 +02:00 committed by Stephen Hemminger
parent 3bc2dc7668
commit dc0332b1e8
2 changed files with 4 additions and 6 deletions
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4
man/man8/tc-tunnel_key.8
View File

@ -59,12 +59,12 @@ above).
.TP
.B set
Set tunnel metadata to be used by the IP tunnel device. Requires
.B id
,
.B src_ip
and
.B dst_ip
options.
.B id
,
.B dst_port
and
.B geneve_opts

6
tc/m_tunnel_key.c
View File

@ -25,7 +25,7 @@ static void explain(void)
fprintf(stderr, " tunnel_key set <TUNNEL_KEY>\n");
fprintf(stderr,
"Where TUNNEL_KEY is a combination of:\n"
"id <TUNNELID> (mandatory)\n"
"id <TUNNELID>\n"
"src_ip <IP> (mandatory)\n"
"dst_ip <IP> (mandatory)\n"
"dst_port <UDP_PORT>\n"
@ -217,7 +217,6 @@ static int parse_tunnel_key(struct action_util *a, int *argc_p, char ***argv_p,
int ret;
int has_src_ip = 0;
int has_dst_ip = 0;
int has_key_id = 0;
int csum = 1;
if (matches(*argv, "tunnel_key") != 0)
@ -273,7 +272,6 @@ static int parse_tunnel_key(struct action_util *a, int *argc_p, char ***argv_p,
fprintf(stderr, "Illegal \"id\"\n");
return -1;
}
has_key_id = 1;
} else if (matches(*argv, "dst_port") == 0) {
NEXT_ARG();
ret = tunnel_key_parse_dst_port(*argv,
@ -335,7 +333,7 @@ static int parse_tunnel_key(struct action_util *a, int *argc_p, char ***argv_p,
}
if (action == TCA_TUNNEL_KEY_ACT_SET &&
(!has_src_ip || !has_dst_ip || !has_key_id)) {
(!has_src_ip || !has_dst_ip)) {
fprintf(stderr, "set needs tunnel_key parameters\n");
explain();
return -1;