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Hangbin Liu 665e0b9556 netlink: specs: fou: change local-v6/peer-v6 check
JIRA: https://redhat.atlassian.net/browse/RHEL-156508
Upstream Status: net.git commit 9f9581ba74a9

commit 9f9581ba74a931843c6d807ecfeaff9fb8c1b731
Author: Asbjørn Sloth Tønnesen <ast@fiberby.net>
Date:   Tue Sep 2 15:46:35 2025 +0000

    netlink: specs: fou: change local-v6/peer-v6 check

    While updating the binary min-len implementation, I noticed that
    the only user, should AFAICT be using exact-len instead.

    In net/ipv4/fou_core.c FOU_ATTR_LOCAL_V6 and FOU_ATTR_PEER_V6
    are only used for singular IPv6 addresses, and there are AFAICT
    no known implementations trying to send more, it therefore
    appears safe to change it to an exact-len policy.

    This patch therefore changes the local-v6/peer-v6 attributes to
    use an exact-len check, instead of a min-len check.

    Signed-off-by: Asbjørn Sloth Tønnesen <ast@fiberby.net>
    Reviewed-by: Donald Hunter <donald.hunter@gmail.com>
    Link: https://patch.msgid.link/20250902154640.759815-2-ast@fiberby.net
    Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Signed-off-by: Hangbin Liu <haliu@redhat.com>
2026-03-18 12:05:57 +08:00

49 lines
1.4 KiB
C

// SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)
/* Do not edit directly, auto-generated from: */
/* Documentation/netlink/specs/fou.yaml */
/* YNL-GEN kernel source */
#include <net/netlink.h>
#include <net/genetlink.h>
#include "fou_nl.h"
#include <uapi/linux/fou.h>
/* Global operation policy for fou */
const struct nla_policy fou_nl_policy[FOU_ATTR_IFINDEX + 1] = {
[FOU_ATTR_PORT] = { .type = NLA_BE16, },
[FOU_ATTR_AF] = { .type = NLA_U8, },
[FOU_ATTR_IPPROTO] = NLA_POLICY_MIN(NLA_U8, 1),
[FOU_ATTR_TYPE] = { .type = NLA_U8, },
[FOU_ATTR_REMCSUM_NOPARTIAL] = { .type = NLA_FLAG, },
[FOU_ATTR_LOCAL_V4] = { .type = NLA_U32, },
[FOU_ATTR_LOCAL_V6] = NLA_POLICY_EXACT_LEN(16),
[FOU_ATTR_PEER_V4] = { .type = NLA_U32, },
[FOU_ATTR_PEER_V6] = NLA_POLICY_EXACT_LEN(16),
[FOU_ATTR_PEER_PORT] = { .type = NLA_BE16, },
[FOU_ATTR_IFINDEX] = { .type = NLA_S32, },
};
/* Ops table for fou */
const struct genl_small_ops fou_nl_ops[3] = {
{
.cmd = FOU_CMD_ADD,
.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
.doit = fou_nl_add_doit,
.flags = GENL_ADMIN_PERM,
},
{
.cmd = FOU_CMD_DEL,
.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
.doit = fou_nl_del_doit,
.flags = GENL_ADMIN_PERM,
},
{
.cmd = FOU_CMD_GET,
.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
.doit = fou_nl_get_doit,
.dumpit = fou_nl_get_dumpit,
},
};