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https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/
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6c8702c60b
This patch creates a new type of interfaceless lightweight tunnel (SEG6), enabling the encapsulation and injection of SRH within locally emitted packets and forwarded packets. >From a configuration viewpoint, a seg6 tunnel would be configured as follows: ip -6 ro ad fc00::1/128 encap seg6 mode encap segs fc42::1,fc42::2,fc42::3 dev eth0 Any packet whose destination address is fc00::1 would thus be encapsulated within an outer IPv6 header containing the SRH with three segments, and would actually be routed to the first segment of the list. If `mode inline' was specified instead of `mode encap', then the SRH would be directly inserted after the IPv6 header without outer encapsulation. The inline mode is only available if CONFIG_IPV6_SEG6_INLINE is enabled. This feature was made configurable because direct header insertion may break several mechanisms such as PMTUD or IPSec AH. Signed-off-by: David Lebrun <david.lebrun@uclouvain.be> Signed-off-by: David S. Miller <davem@davemloft.net>
47 lines
848 B
C
47 lines
848 B
C
#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_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_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_MAX,
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};
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#define LWTUNNEL_IP6_MAX (__LWTUNNEL_IP6_MAX - 1)
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#endif /* _UAPI_LWTUNNEL_H_ */
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