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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2026-09-20 08:15:23 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2026-09-20 08:15:23 -0700 |
| commit | bdab18633a302c82b5e5d5dbc4e38b0baf9c0837 (patch) | |
| tree | 0446500af9a76d4e8b2a72a0a41391ceede73a10 /crypto/fips.c | |
| download | linux-stable-bdab18633a302c82b5e5d5dbc4e38b0baf9c0837.tar.gz linux-stable-bdab18633a302c82b5e5d5dbc4e38b0baf9c0837.zip | |
Merge tag 'locking-urgent-2026-09-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipgrafted
Pull futex fix from Ingo Molnar:
- Also allocate a default private futex hash on vfork() as well, to
avoid races with (private) futex waiters (Peter Zijlstra)
* tag 'locking-urgent-2026-09-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
futex: Also allocate private hash on vfork()
Diffstat (limited to 'crypto/fips.c')
| -rw-r--r-- | crypto/fips.c | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/crypto/fips.c b/crypto/fips.c new file mode 100644 index 000000000..c59711248 --- /dev/null +++ b/crypto/fips.c @@ -0,0 +1,102 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * FIPS 200 support. + * + * Copyright (c) 2008 Neil Horman <nhorman@tuxdriver.com> + */ + +#include <linux/export.h> +#include <linux/fips.h> +#include <linux/init.h> +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/sysctl.h> +#include <linux/notifier.h> +#include <linux/string_choices.h> +#include <generated/utsrelease.h> + +int fips_enabled; +EXPORT_SYMBOL_GPL(fips_enabled); + +ATOMIC_NOTIFIER_HEAD(fips_fail_notif_chain); +EXPORT_SYMBOL_GPL(fips_fail_notif_chain); + +/* Process kernel command-line parameter at boot time. fips=0 or fips=1 */ +static int __init fips_enable(char *str) +{ + if (kstrtoint(str, 0, &fips_enabled)) + return 0; + + fips_enabled = !!fips_enabled; + pr_info("fips mode: %s\n", str_enabled_disabled(fips_enabled)); + return 1; +} + +__setup("fips=", fips_enable); + +#define FIPS_MODULE_NAME CONFIG_CRYPTO_FIPS_NAME +#ifdef CONFIG_CRYPTO_FIPS_CUSTOM_VERSION +#define FIPS_MODULE_VERSION CONFIG_CRYPTO_FIPS_VERSION +#else +#define FIPS_MODULE_VERSION UTS_RELEASE +#endif + +static char fips_name[] = FIPS_MODULE_NAME; +static char fips_version[] = FIPS_MODULE_VERSION; + +static const struct ctl_table crypto_sysctl_table[] = { + { + .procname = "fips_enabled", + .data = &fips_enabled, + .maxlen = sizeof(int), + .mode = 0444, + .proc_handler = proc_dointvec + }, + { + .procname = "fips_name", + .data = &fips_name, + .maxlen = 64, + .mode = 0444, + .proc_handler = proc_dostring + }, + { + .procname = "fips_version", + .data = &fips_version, + .maxlen = 64, + .mode = 0444, + .proc_handler = proc_dostring + }, +}; + +static struct ctl_table_header *crypto_sysctls; + +static void crypto_proc_fips_init(void) +{ + crypto_sysctls = register_sysctl("crypto", crypto_sysctl_table); +} + +static void crypto_proc_fips_exit(void) +{ + unregister_sysctl_table(crypto_sysctls); +} + +void fips_fail_notify(void) +{ + if (fips_enabled) + atomic_notifier_call_chain(&fips_fail_notif_chain, 0, NULL); +} +EXPORT_SYMBOL_GPL(fips_fail_notify); + +static int __init fips_init(void) +{ + crypto_proc_fips_init(); + return 0; +} + +static void __exit fips_exit(void) +{ + crypto_proc_fips_exit(); +} + +module_init(fips_init); +module_exit(fips_exit); |
