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lwtunnel: add options setting and dumping for geneve

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To add options setting and dumping, .build_state(), .fill_encap() and
.get_encap_size() in ip_tun_lwt_ops needs to be extended:

ip_tun_build_state():
  ip_tun_parse_opts():
    ip_tun_parse_opts_geneve()

ip_tun_fill_encap_info():
  ip_tun_fill_encap_opts():
    ip_tun_fill_encap_opts_geneve()

ip_tun_encap_nlsize()
   ip_tun_opts_nlsize():
     if (tun_flags & TUNNEL_GENEVE_OPT)

ip_tun_parse_opts(), ip_tun_fill_encap_opts() and ip_tun_opts_nlsize()
processes LWTUNNEL_IP_OPTS.

ip_tun_parse_opts_geneve(), ip_tun_fill_encap_opts_geneve() and
if (tun_flags & TUNNEL_GENEVE_OPT) processes LWTUNNEL_IP_OPTS_GENEVE.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Xin Long 2019-11-06 17:01:05 +08:00 • committed by David S. Miller
parent 0eb8eb2f96
commit 4ece477870
2 changed files with 216 additions and 16 deletions
Download patch file Download diff file Expand all files Collapse all files

20
include/uapi/linux/lwtunnel.h
View file

@ -27,6 +27,7 @@ enum lwtunnel_ip_t {
LWTUNNEL_IP_TOS,
LWTUNNEL_IP_FLAGS,
LWTUNNEL_IP_PAD,
LWTUNNEL_IP_OPTS,
__LWTUNNEL_IP_MAX,
};
@ -41,11 +42,30 @@ enum lwtunnel_ip6_t {
LWTUNNEL_IP6_TC,
LWTUNNEL_IP6_FLAGS,
LWTUNNEL_IP6_PAD,
LWTUNNEL_IP6_OPTS,
__LWTUNNEL_IP6_MAX,
};
#define LWTUNNEL_IP6_MAX (__LWTUNNEL_IP6_MAX - 1)
enum {
LWTUNNEL_IP_OPTS_UNSPEC,
LWTUNNEL_IP_OPTS_GENEVE,
__LWTUNNEL_IP_OPTS_MAX,
};
#define LWTUNNEL_IP_OPTS_MAX (__LWTUNNEL_IP_OPTS_MAX - 1)
enum {
LWTUNNEL_IP_OPT_GENEVE_UNSPEC,
LWTUNNEL_IP_OPT_GENEVE_CLASS,
LWTUNNEL_IP_OPT_GENEVE_TYPE,
LWTUNNEL_IP_OPT_GENEVE_DATA,
__LWTUNNEL_IP_OPT_GENEVE_MAX,
};
#define LWTUNNEL_IP_OPT_GENEVE_MAX (__LWTUNNEL_IP_OPT_GENEVE_MAX - 1)
enum {
LWT_BPF_PROG_UNSPEC,
LWT_BPF_PROG_FD,