From 023289b4f582820f3124fa7ff42a61959fe7dea6 Mon Sep 17 00:00:00 2001 From: Donald Hunter Date: Fri, 25 Aug 2023 13:27:55 +0100 Subject: [PATCH] doc/netlink: Add spec for rt route messages Add schema for rt route with support for getroute, newroute and delroute. Routes can be dumped with filter attributes like this: ./tools/net/ynl/cli.py \ --spec Documentation/netlink/specs/rt_route.yaml \ --dump getroute --json '{"rtm-family": 2, "rtm-table": 254}' Signed-off-by: Donald Hunter Reviewed-by: Jacob Keller Link: https://lore.kernel.org/r/20230825122756.7603-13-donald.hunter@gmail.com Signed-off-by: Jakub Kicinski --- Documentation/netlink/specs/rt_route.yaml | 327 ++++++++++++++++++++++ 1 file changed, 327 insertions(+) create mode 100644 Documentation/netlink/specs/rt_route.yaml diff --git a/Documentation/netlink/specs/rt_route.yaml b/Documentation/netlink/specs/rt_route.yaml new file mode 100644 index 000000000000..f4368be0caed --- /dev/null +++ b/Documentation/netlink/specs/rt_route.yaml @@ -0,0 +1,327 @@ +# SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) + +name: rt-route +protocol: netlink-raw +protonum: 0 + +doc: + Route configuration over rtnetlink. + +definitions: + - + name: rtm-type + name-prefix: rtn- + type: enum + entries: + - unspec + - unicast + - local + - broadcast + - anycast + - multicast + - blackhole + - unreachable + - prohibit + - throw + - nat + - xresolve + - + name: rtmsg + type: struct + members: + - + name: rtm-family + type: u8 + - + name: rtm-dst-len + type: u8 + - + name: rtm-src-len + type: u8 + - + name: rtm-tos + type: u8 + - + name: rtm-table + type: u8 + - + name: rtm-protocol + type: u8 + - + name: rtm-scope + type: u8 + - + name: rtm-type + type: u8 + enum: rtm-type + - + name: rtm-flags + type: u32 + - + name: rta-cacheinfo + type: struct + members: + - + name: rta-clntref + type: u32 + - + name: rta-lastuse + type: u32 + - + name: rta-expires + type: u32 + - + name: rta-error + type: u32 + - + name: rta-used + type: u32 + +attribute-sets: + - + name: route-attrs + attributes: + - + name: rta-dst + type: binary + display-hint: ipv4 + - + name: rta-src + type: binary + display-hint: ipv4 + - + name: rta-iif + type: u32 + - + name: rta-oif + type: u32 + - + name: rta-gateway + type: binary + display-hint: ipv4 + - + name: rta-priority + type: u32 + - + name: rta-prefsrc + type: binary + display-hint: ipv4 + - + name: rta-metrics + type: nest + nested-attributes: rta-metrics + - + name: rta-multipath + type: binary + - + name: rta-protoinfo # not used + type: binary + - + name: rta-flow + type: u32 + - + name: rta-cacheinfo + type: binary + struct: rta-cacheinfo + - + name: rta-session # not used + type: binary + - + name: rta-mp-algo # not used + type: binary + - + name: rta-table + type: u32 + - + name: rta-mark + type: u32 + - + name: rta-mfc-stats + type: binary + - + name: rta-via + type: binary + - + name: rta-newdst + type: binary + - + name: rta-pref + type: u8 + - + name: rta-encap-type + type: u16 + - + name: rta-encap + type: binary # tunnel specific nest + - + name: rta-expires + type: u32 + - + name: rta-pad + type: binary + - + name: rta-uid + type: u32 + - + name: rta-ttl-propagate + type: u8 + - + name: rta-ip-proto + type: u8 + - + name: rta-sport + type: u16 + - + name: rta-dport + type: u16 + - + name: rta-nh-id + type: u32 + - + name: rta-metrics + attributes: + - + name: rtax-unspec + type: unused + value: 0 + - + name: rtax-lock + type: u32 + - + name: rtax-mtu + type: u32 + - + name: rtax-window + type: u32 + - + name: rtax-rtt + type: u32 + - + name: rtax-rttvar + type: u32 + - + name: rtax-ssthresh + type: u32 + - + name: rtax-cwnd + type: u32 + - + name: rtax-advmss + type: u32 + - + name: rtax-reordering + type: u32 + - + name: rtax-hoplimit + type: u32 + - + name: rtax-initcwnd + type: u32 + - + name: rtax-features + type: u32 + - + name: rtax-rto-min + type: u32 + - + name: rtax-initrwnd + type: u32 + - + name: rtax-quickack + type: u32 + - + name: rtax-cc-algo + type: string + - + name: rtax-fastopen-no-cookie + type: u32 + +operations: + enum-model: directional + list: + - + name: getroute + doc: Dump route information. + attribute-set: route-attrs + fixed-header: rtmsg + do: + request: + value: 26 + attributes: + - rtm-family + - rta-src + - rtm-src-len + - rta-dst + - rtm-dst-len + - rta-iif + - rta-oif + - rta-ip-proto + - rta-sport + - rta-dport + - rta-mark + - rta-uid + reply: + value: 24 + attributes: &all-route-attrs + - rtm-family + - rtm-dst-len + - rtm-src-len + - rtm-tos + - rtm-table + - rtm-protocol + - rtm-scope + - rtm-type + - rtm-flags + - rta-dst + - rta-src + - rta-iif + - rta-oif + - rta-gateway + - rta-priority + - rta-prefsrc + - rta-metrics + - rta-multipath + - rta-flow + - rta-cacheinfo + - rta-table + - rta-mark + - rta-mfc-stats + - rta-via + - rta-newdst + - rta-pref + - rta-encap-type + - rta-encap + - rta-expires + - rta-pad + - rta-uid + - rta-ttl-propagate + - rta-ip-proto + - rta-sport + - rta-dport + - rta-nh-id + dump: + request: + value: 26 + attributes: + - rtm-family + reply: + value: 24 + attributes: *all-route-attrs + - + name: newroute + doc: Create a new route + attribute-set: route-attrs + fixed-header: rtmsg + do: + request: + value: 24 + attributes: *all-route-attrs + - + name: delroute + doc: Delete an existing route + attribute-set: route-attrs + fixed-header: rtmsg + do: + request: + value: 25 + attributes: *all-route-attrs