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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104// SPDX-License-Identifier: GPL-2.0-or-later/* * Scatterlist Cryptographic API. * * Procfs information. * * Copyright (c) 2002 James Morris <jmorris@intercode.com.au> * Copyright (c) 2005 Herbert Xu <herbert@gondor.apana.org.au> */
#include <linux/atomic.h>#include <linux/init.h>#include <linux/crypto.h>#include <linux/fips.h>#include <linux/module.h> /* for module_name() */#include <linux/rwsem.h>#include <linux/proc_fs.h>#include <linux/seq_file.h>#include "internal.h"
static void *c_start(struct seq_file *m, loff_t *pos) __acquires_shared(&crypto_alg_sem){ down_read(&crypto_alg_sem); return seq_list_start(&crypto_alg_list, *pos);}
static void *c_next(struct seq_file *m, void *p, loff_t *pos) __must_hold_shared(&crypto_alg_sem){ return seq_list_next(p, &crypto_alg_list, pos);}
static void c_stop(struct seq_file *m, void *p) __releases_shared(&crypto_alg_sem){ up_read(&crypto_alg_sem);}
static int c_show(struct seq_file *m, void *p){ struct crypto_alg *alg = list_entry(p, struct crypto_alg, cra_list);
seq_printf(m, "name : %s\n", alg->cra_name); seq_printf(m, "driver : %s\n", alg->cra_driver_name); seq_printf(m, "module : %s\n", module_name(alg->cra_module)); seq_printf(m, "priority : %d\n", alg->cra_priority); seq_printf(m, "refcnt : %u\n", refcount_read(&alg->cra_refcnt)); seq_printf(m, "selftest : %s\n", (alg->cra_flags & CRYPTO_ALG_TESTED) ? "passed" : "unknown"); seq_printf(m, "internal : %s\n", str_yes_no(alg->cra_flags & CRYPTO_ALG_INTERNAL)); if (fips_enabled) seq_printf(m, "fips : %s\n", str_no_yes(alg->cra_flags & CRYPTO_ALG_FIPS_INTERNAL));
if (alg->cra_flags & CRYPTO_ALG_LARVAL) { seq_printf(m, "type : larval\n"); seq_printf(m, "flags : 0x%x\n", alg->cra_flags); goto out; }
if (alg->cra_type && alg->cra_type->show) { alg->cra_type->show(m, alg); goto out; }
switch (alg->cra_flags & CRYPTO_ALG_TYPE_MASK) { case CRYPTO_ALG_TYPE_CIPHER: seq_printf(m, "type : cipher\n"); seq_printf(m, "blocksize : %u\n", alg->cra_blocksize); seq_printf(m, "min keysize : %u\n", alg->cra_cipher.cia_min_keysize); seq_printf(m, "max keysize : %u\n", alg->cra_cipher.cia_max_keysize); break; default: seq_printf(m, "type : unknown\n"); break; }
out: seq_putc(m, '\n'); return 0;}
static const struct seq_operations crypto_seq_ops = { .start = c_start, .next = c_next, .stop = c_stop, .show = c_show};
void __init crypto_init_proc(void){ proc_create_seq("crypto", 0, NULL, &crypto_seq_ops);}
void __exit crypto_exit_proc(void){ remove_proc_entry("crypto", NULL);}