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// SPDX-License-Identifier: GPL-2.0-or-later /* Key management controls * * Copyright (C) 2008 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) */ #include <linux/key.h> #include <linux/sysctl.h> #include "internal.h" static struct ctl_table key_sysctls[] = { { .procname = "maxkeys", .data = &key_quota_maxkeys, .maxlen = sizeof(unsigned), .mode = 0644, .proc_handler = proc_dointvec_minmax, .extra1 = (void *) SYSCTL_ONE, .extra2 = (void *) SYSCTL_INT_MAX, }, { .procname = "maxbytes", .data = &key_quota_maxbytes, .maxlen = sizeof(unsigned), .mode = 0644, .proc_handler = proc_dointvec_minmax, .extra1 = (void *) SYSCTL_ONE, .extra2 = (void *) SYSCTL_INT_MAX, }, { .procname = "root_maxkeys", .data = &key_quota_root_maxkeys, .maxlen = sizeof(unsigned), .mode = 0644, .proc_handler = proc_dointvec_minmax, .extra1 = (void *) SYSCTL_ONE, .extra2 = (void *) SYSCTL_INT_MAX, }, { .procname = "root_maxbytes", .data = &key_quota_root_maxbytes, .maxlen = sizeof(unsigned), .mode = 0644, .proc_handler = proc_dointvec_minmax, .extra1 = (void *) SYSCTL_ONE, .extra2 = (void *) SYSCTL_INT_MAX, }, { .procname = "gc_delay", .data = &key_gc_delay, .maxlen = sizeof(unsigned), .mode = 0644, .proc_handler = proc_dointvec_minmax, .extra1 = (void *) SYSCTL_ZERO, .extra2 = (void *) SYSCTL_INT_MAX, }, #ifdef CONFIG_PERSISTENT_KEYRINGS { .procname = "persistent_keyring_expiry", .data = &persistent_keyring_expiry, .maxlen = sizeof(unsigned), .mode = 0644, .proc_handler = proc_dointvec_minmax, .extra1 = (void *) SYSCTL_ZERO, .extra2 = (void *) SYSCTL_INT_MAX, }, #endif { } }; static int __init init_security_keys_sysctls(void) { register_sysctl_init("kernel/keys", key_sysctls); return 0; } early_initcall(init_security_keys_sysctls);
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