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odp: Enable parsing ipv4_tunnel key.

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We can format ipv4_tunnel keys from the kernel but can't currently
parse them.  Userspace doesn't know how to do anything with this
information but this support enables utilities like ovs-dpctl and
ovs-appctl ofproto/trace to show useful information.

Bug #13785

Signed-off-by: Jesse Gross <jesse@nicira.com>
This commit is contained in:
Jesse Gross
2012-11-01 15:50:16 -07:00
parent 3a14d239d7
commit 35651d6a6b
2 changed files with 25 additions and 0 deletions
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24
lib/odp-util.c
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@@ -924,6 +924,30 @@ parse_odp_key_attr(const char *s, const struct simap *port_names,
}
}
{
char tun_id_s[32];
unsigned long long int flags;
int tos, ttl;
struct ovs_key_ipv4_tunnel tun_key;
int n = -1;
if (sscanf(s, "ipv4_tunnel(tun_id=%31[x0123456789abcdefABCDEF],"
"flags=%lli,src="IP_SCAN_FMT",dst="IP_SCAN_FMT
",tos=%i,ttl=%i)%n", tun_id_s, &flags,
IP_SCAN_ARGS(&tun_key.ipv4_src),
IP_SCAN_ARGS(&tun_key.ipv4_dst), &tos, &ttl,
&n) > 0 && n > 0) {
tun_key.tun_id = htonll(strtoull(tun_id_s, NULL, 0));
tun_key.tun_flags = flags;
tun_key.ipv4_tos = tos;
tun_key.ipv4_ttl = ttl;
memset(&tun_key.pad, 0, sizeof tun_key.pad);
nl_msg_put_unspec(key, OVS_KEY_ATTR_IPV4_TUNNEL, &tun_key,
sizeof tun_key);
return n;
}
}
{
unsigned long long int in_port;
int n = -1;