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9ee11f0fff
Implement support for processing the IOAM Pre-allocated Trace with IPv6, see [1] and [2]. Introduce a new IPv6 Hop-by-Hop TLV option, see IANA [3]. A new per-interface sysctl is introduced. The value is a boolean to accept (=1) or ignore (=0, by default) IPv6 IOAM options on ingress for an interface: - net.ipv6.conf.XXX.ioam6_enabled Two other sysctls are introduced to define IOAM IDs, represented by an integer. They are respectively per-namespace and per-interface: - net.ipv6.ioam6_id - net.ipv6.conf.XXX.ioam6_id The value of the first one represents the IOAM ID of the node itself (u32; max and default value = U32_MAX>>8, due to hop limit concatenation) while the other represents the IOAM ID of an interface (u16; max and default value = U16_MAX). Each "ioam6_id" sysctl has a "_wide" equivalent: - net.ipv6.ioam6_id_wide - net.ipv6.conf.XXX.ioam6_id_wide The value of the first one represents the wide IOAM ID of the node itself (u64; max and default value = U64_MAX>>8, due to hop limit concatenation) while the other represents the wide IOAM ID of an interface (u32; max and default value = U32_MAX). The use of short and wide equivalents is not exclusive, a deployment could choose to leverage both. For example, net.ipv6.conf.XXX.ioam6_id (short format) could be an identifier for a physical interface, whereas net.ipv6.conf.XXX.ioam6_id_wide (wide format) could be an identifier for a logical sub-interface. Documentation about new sysctls is provided at the end of this patchset. Two relativistic hash tables are used: one for IOAM namespaces, the other for IOAM schemas. A namespace can only have a single active schema and a schema can only be attached to a single namespace (1:1 relationship). [1] https://tools.ietf.org/html/draft-ietf-ippm-ioam-ipv6-options [2] https://tools.ietf.org/html/draft-ietf-ippm-ioam-data [3] https://www.iana.org/assignments/ipv6-parameters/ipv6-parameters.xhtml#ipv6-parameters-2 Signed-off-by: Justin Iurman <justin.iurman@uliege.be> Signed-off-by: David S. Miller <davem@davemloft.net>
58 lines
1.9 KiB
Makefile
58 lines
1.9 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0
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#
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# Makefile for the Linux TCP/IP (INET6) layer.
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#
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obj-$(CONFIG_IPV6) += ipv6.o
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ipv6-objs := af_inet6.o anycast.o ip6_output.o ip6_input.o addrconf.o \
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addrlabel.o \
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route.o ip6_fib.o ipv6_sockglue.o ndisc.o udp.o udplite.o \
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raw.o icmp.o mcast.o reassembly.o tcp_ipv6.o ping.o \
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exthdrs.o datagram.o ip6_flowlabel.o inet6_connection_sock.o \
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udp_offload.o seg6.o fib6_notifier.o rpl.o ioam6.o
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ipv6-offload := ip6_offload.o tcpv6_offload.o exthdrs_offload.o
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ipv6-$(CONFIG_SYSCTL) = sysctl_net_ipv6.o
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ipv6-$(CONFIG_IPV6_MROUTE) += ip6mr.o
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ipv6-$(CONFIG_XFRM) += xfrm6_policy.o xfrm6_state.o xfrm6_input.o \
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xfrm6_output.o xfrm6_protocol.o
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ipv6-$(CONFIG_NETFILTER) += netfilter.o
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ipv6-$(CONFIG_IPV6_MULTIPLE_TABLES) += fib6_rules.o
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ipv6-$(CONFIG_PROC_FS) += proc.o
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ipv6-$(CONFIG_SYN_COOKIES) += syncookies.o
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ipv6-$(CONFIG_NETLABEL) += calipso.o
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ipv6-$(CONFIG_IPV6_SEG6_LWTUNNEL) += seg6_iptunnel.o seg6_local.o
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ipv6-$(CONFIG_IPV6_SEG6_HMAC) += seg6_hmac.o
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ipv6-$(CONFIG_IPV6_RPL_LWTUNNEL) += rpl_iptunnel.o
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ipv6-objs += $(ipv6-y)
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obj-$(CONFIG_INET6_AH) += ah6.o
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obj-$(CONFIG_INET6_ESP) += esp6.o
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obj-$(CONFIG_INET6_ESP_OFFLOAD) += esp6_offload.o
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obj-$(CONFIG_INET6_IPCOMP) += ipcomp6.o
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obj-$(CONFIG_INET6_XFRM_TUNNEL) += xfrm6_tunnel.o
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obj-$(CONFIG_INET6_TUNNEL) += tunnel6.o
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obj-$(CONFIG_IPV6_MIP6) += mip6.o
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obj-$(CONFIG_IPV6_ILA) += ila/
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obj-$(CONFIG_NETFILTER) += netfilter/
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obj-$(CONFIG_IPV6_VTI) += ip6_vti.o
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obj-$(CONFIG_IPV6_SIT) += sit.o
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obj-$(CONFIG_IPV6_TUNNEL) += ip6_tunnel.o
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obj-$(CONFIG_IPV6_GRE) += ip6_gre.o
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obj-$(CONFIG_IPV6_FOU) += fou6.o
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obj-y += addrconf_core.o exthdrs_core.o ip6_checksum.o ip6_icmp.o
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obj-$(CONFIG_INET) += output_core.o protocol.o $(ipv6-offload)
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obj-$(subst m,y,$(CONFIG_IPV6)) += inet6_hashtables.o
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ifneq ($(CONFIG_IPV6),)
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obj-$(CONFIG_NET_UDP_TUNNEL) += ip6_udp_tunnel.o
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obj-y += mcast_snoop.o
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endif
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