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2c2493b9da
Allow specifying the xfrm interface if_id and link as part of a route metadata using the lwtunnel infrastructure. This allows for example using a single xfrm interface in collect_md mode as the target of multiple routes each specifying a different if_id. With the appropriate changes to iproute2, considering an xfrm device ipsec1 in collect_md mode one can for example add a route specifying an if_id like so: ip route add <SUBNET> dev ipsec1 encap xfrm if_id 1 In which case traffic routed to the device via this route would use if_id in the xfrm interface policy lookup. Or in the context of vrf, one can also specify the "link" property: ip route add <SUBNET> dev ipsec1 encap xfrm if_id 1 link_dev eth15 Note: LWT_XFRM_LINK uses NLA_U32 similar to IFLA_XFRM_LINK even though internally "link" is signed. This is consistent with other _LINK attributes in other devices as well as in bpf and should not have an effect as device indexes can't be negative. Reviewed-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org> Signed-off-by: Eyal Birger <eyal.birger@gmail.com> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
124 lines
2.3 KiB
C
124 lines
2.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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#ifndef _UAPI_LWTUNNEL_H_
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#define _UAPI_LWTUNNEL_H_
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#include <linux/types.h>
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enum lwtunnel_encap_types {
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LWTUNNEL_ENCAP_NONE,
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LWTUNNEL_ENCAP_MPLS,
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LWTUNNEL_ENCAP_IP,
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LWTUNNEL_ENCAP_ILA,
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LWTUNNEL_ENCAP_IP6,
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LWTUNNEL_ENCAP_SEG6,
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LWTUNNEL_ENCAP_BPF,
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LWTUNNEL_ENCAP_SEG6_LOCAL,
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LWTUNNEL_ENCAP_RPL,
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LWTUNNEL_ENCAP_IOAM6,
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LWTUNNEL_ENCAP_XFRM,
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__LWTUNNEL_ENCAP_MAX,
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};
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#define LWTUNNEL_ENCAP_MAX (__LWTUNNEL_ENCAP_MAX - 1)
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enum lwtunnel_ip_t {
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LWTUNNEL_IP_UNSPEC,
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LWTUNNEL_IP_ID,
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LWTUNNEL_IP_DST,
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LWTUNNEL_IP_SRC,
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LWTUNNEL_IP_TTL,
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LWTUNNEL_IP_TOS,
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LWTUNNEL_IP_FLAGS,
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LWTUNNEL_IP_PAD,
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LWTUNNEL_IP_OPTS,
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__LWTUNNEL_IP_MAX,
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};
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#define LWTUNNEL_IP_MAX (__LWTUNNEL_IP_MAX - 1)
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enum lwtunnel_ip6_t {
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LWTUNNEL_IP6_UNSPEC,
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LWTUNNEL_IP6_ID,
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LWTUNNEL_IP6_DST,
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LWTUNNEL_IP6_SRC,
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LWTUNNEL_IP6_HOPLIMIT,
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LWTUNNEL_IP6_TC,
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LWTUNNEL_IP6_FLAGS,
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LWTUNNEL_IP6_PAD,
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LWTUNNEL_IP6_OPTS,
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__LWTUNNEL_IP6_MAX,
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};
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#define LWTUNNEL_IP6_MAX (__LWTUNNEL_IP6_MAX - 1)
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enum {
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LWTUNNEL_IP_OPTS_UNSPEC,
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LWTUNNEL_IP_OPTS_GENEVE,
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LWTUNNEL_IP_OPTS_VXLAN,
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LWTUNNEL_IP_OPTS_ERSPAN,
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__LWTUNNEL_IP_OPTS_MAX,
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};
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#define LWTUNNEL_IP_OPTS_MAX (__LWTUNNEL_IP_OPTS_MAX - 1)
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enum {
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LWTUNNEL_IP_OPT_GENEVE_UNSPEC,
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LWTUNNEL_IP_OPT_GENEVE_CLASS,
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LWTUNNEL_IP_OPT_GENEVE_TYPE,
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LWTUNNEL_IP_OPT_GENEVE_DATA,
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__LWTUNNEL_IP_OPT_GENEVE_MAX,
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};
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#define LWTUNNEL_IP_OPT_GENEVE_MAX (__LWTUNNEL_IP_OPT_GENEVE_MAX - 1)
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enum {
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LWTUNNEL_IP_OPT_VXLAN_UNSPEC,
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LWTUNNEL_IP_OPT_VXLAN_GBP,
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__LWTUNNEL_IP_OPT_VXLAN_MAX,
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};
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#define LWTUNNEL_IP_OPT_VXLAN_MAX (__LWTUNNEL_IP_OPT_VXLAN_MAX - 1)
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enum {
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LWTUNNEL_IP_OPT_ERSPAN_UNSPEC,
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LWTUNNEL_IP_OPT_ERSPAN_VER,
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LWTUNNEL_IP_OPT_ERSPAN_INDEX,
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LWTUNNEL_IP_OPT_ERSPAN_DIR,
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LWTUNNEL_IP_OPT_ERSPAN_HWID,
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__LWTUNNEL_IP_OPT_ERSPAN_MAX,
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};
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#define LWTUNNEL_IP_OPT_ERSPAN_MAX (__LWTUNNEL_IP_OPT_ERSPAN_MAX - 1)
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enum {
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LWT_BPF_PROG_UNSPEC,
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LWT_BPF_PROG_FD,
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LWT_BPF_PROG_NAME,
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__LWT_BPF_PROG_MAX,
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};
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#define LWT_BPF_PROG_MAX (__LWT_BPF_PROG_MAX - 1)
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enum {
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LWT_BPF_UNSPEC,
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LWT_BPF_IN,
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LWT_BPF_OUT,
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LWT_BPF_XMIT,
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LWT_BPF_XMIT_HEADROOM,
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__LWT_BPF_MAX,
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};
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#define LWT_BPF_MAX (__LWT_BPF_MAX - 1)
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#define LWT_BPF_MAX_HEADROOM 256
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enum {
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LWT_XFRM_UNSPEC,
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LWT_XFRM_IF_ID,
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LWT_XFRM_LINK,
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__LWT_XFRM_MAX,
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};
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#define LWT_XFRM_MAX (__LWT_XFRM_MAX - 1)
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#endif /* _UAPI_LWTUNNEL_H_ */
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