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9a28ac1762
The legacy rpc.nfsd tool will set the nlm_grace_period if the NFSv4 grace period is set. nfsdctl is missing this functionality, so add a new netlink control interface for lockd that it can use. For now, it only allows setting the grace period, and the tcp and udp listener ports. lockd currently uses module parameters and sysctls for configuration, so all of its settings are global. With this change, lockd now tracks these values on a per-net-ns basis. It will only fall back to using the global values if any of them are 0. Finally, as a backward compatibility measure, if updating the nlm settings in the init_net namespace, also update the legacy global values to match. Link: https://issues.redhat.com/browse/RHEL-71698 Signed-off-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
44 lines
1.2 KiB
C
44 lines
1.2 KiB
C
// SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)
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/* Do not edit directly, auto-generated from: */
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/* Documentation/netlink/specs/lockd.yaml */
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/* YNL-GEN kernel source */
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#include <net/netlink.h>
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#include <net/genetlink.h>
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#include "netlink.h"
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#include <uapi/linux/lockd_netlink.h>
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/* LOCKD_CMD_SERVER_SET - do */
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static const struct nla_policy lockd_server_set_nl_policy[LOCKD_A_SERVER_UDP_PORT + 1] = {
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[LOCKD_A_SERVER_GRACETIME] = { .type = NLA_U32, },
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[LOCKD_A_SERVER_TCP_PORT] = { .type = NLA_U16, },
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[LOCKD_A_SERVER_UDP_PORT] = { .type = NLA_U16, },
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};
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/* Ops table for lockd */
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static const struct genl_split_ops lockd_nl_ops[] = {
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{
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.cmd = LOCKD_CMD_SERVER_SET,
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.doit = lockd_nl_server_set_doit,
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.policy = lockd_server_set_nl_policy,
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.maxattr = LOCKD_A_SERVER_UDP_PORT,
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.flags = GENL_ADMIN_PERM | GENL_CMD_CAP_DO,
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},
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{
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.cmd = LOCKD_CMD_SERVER_GET,
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.doit = lockd_nl_server_get_doit,
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.flags = GENL_CMD_CAP_DO,
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},
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};
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struct genl_family lockd_nl_family __ro_after_init = {
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.name = LOCKD_FAMILY_NAME,
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.version = LOCKD_FAMILY_VERSION,
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.netnsok = true,
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.parallel_ops = true,
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.module = THIS_MODULE,
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.split_ops = lockd_nl_ops,
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.n_split_ops = ARRAY_SIZE(lockd_nl_ops),
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};
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