^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Scatterlist Cryptographic API.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Procfs information.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * Copyright (c) 2005 Herbert Xu <herbert@gondor.apana.org.au>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/atomic.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/crypto.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/module.h> /* for module_name() */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/rwsem.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/proc_fs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/seq_file.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include "internal.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) static void *c_start(struct seq_file *m, loff_t *pos)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) down_read(&crypto_alg_sem);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) return seq_list_start(&crypto_alg_list, *pos);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) static void *c_next(struct seq_file *m, void *p, loff_t *pos)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) return seq_list_next(p, &crypto_alg_list, pos);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) static void c_stop(struct seq_file *m, void *p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) up_read(&crypto_alg_sem);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) static int c_show(struct seq_file *m, void *p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) struct crypto_alg *alg = list_entry(p, struct crypto_alg, cra_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) seq_printf(m, "name : %s\n", alg->cra_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) seq_printf(m, "driver : %s\n", alg->cra_driver_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) seq_printf(m, "module : %s\n", module_name(alg->cra_module));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) seq_printf(m, "priority : %d\n", alg->cra_priority);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) seq_printf(m, "refcnt : %u\n", refcount_read(&alg->cra_refcnt));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) seq_printf(m, "selftest : %s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) (alg->cra_flags & CRYPTO_ALG_TESTED) ?
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) "passed" : "unknown");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) seq_printf(m, "internal : %s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) (alg->cra_flags & CRYPTO_ALG_INTERNAL) ?
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) "yes" : "no");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) if (alg->cra_flags & CRYPTO_ALG_LARVAL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) seq_printf(m, "type : larval\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) seq_printf(m, "flags : 0x%x\n", alg->cra_flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) if (alg->cra_type && alg->cra_type->show) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) alg->cra_type->show(m, alg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) switch (alg->cra_flags & CRYPTO_ALG_TYPE_MASK) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) case CRYPTO_ALG_TYPE_CIPHER:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) seq_printf(m, "type : cipher\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) seq_printf(m, "blocksize : %u\n", alg->cra_blocksize);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) seq_printf(m, "min keysize : %u\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) alg->cra_cipher.cia_min_keysize);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) seq_printf(m, "max keysize : %u\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) alg->cra_cipher.cia_max_keysize);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) case CRYPTO_ALG_TYPE_COMPRESS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) seq_printf(m, "type : compression\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) seq_printf(m, "type : unknown\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) seq_putc(m, '\n');
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) static const struct seq_operations crypto_seq_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) .start = c_start,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) .next = c_next,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) .stop = c_stop,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) .show = c_show
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) void __init crypto_init_proc(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) proc_create_seq("crypto", 0, NULL, &crypto_seq_ops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) void __exit crypto_exit_proc(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) remove_proc_entry("crypto", NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) }
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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