diff options
Diffstat (limited to 'crypto/proc.c')
| -rw-r--r-- | crypto/proc.c | 105 |
1 files changed, 74 insertions, 31 deletions
diff --git a/crypto/proc.c b/crypto/proc.c index 630ba91c08f..4a0a7aad220 100644 --- a/crypto/proc.c +++ b/crypto/proc.c @@ -4,6 +4,7 @@ * Procfs information. * * Copyright (c) 2002 James Morris <jmorris@intercode.com.au> + * Copyright (c) 2005 Herbert Xu <herbert@gondor.apana.org.au> * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the Free @@ -11,36 +12,64 @@ * any later version. * */ + +#include <linux/atomic.h> #include <linux/init.h> #include <linux/crypto.h> +#include <linux/module.h> /* for module_name() */ #include <linux/rwsem.h> #include <linux/proc_fs.h> #include <linux/seq_file.h> +#include <linux/sysctl.h> #include "internal.h" -extern struct list_head crypto_alg_list; -extern struct rw_semaphore crypto_alg_sem; +#ifdef CONFIG_CRYPTO_FIPS +static struct ctl_table crypto_sysctl_table[] = { + { + .procname = "fips_enabled", + .data = &fips_enabled, + .maxlen = sizeof(int), + .mode = 0444, + .proc_handler = proc_dointvec + }, + {} +}; -static void *c_start(struct seq_file *m, loff_t *pos) +static struct ctl_table crypto_dir_table[] = { + { + .procname = "crypto", + .mode = 0555, + .child = crypto_sysctl_table + }, + {} +}; + +static struct ctl_table_header *crypto_sysctls; + +static void crypto_proc_fips_init(void) { - struct list_head *v; - loff_t n = *pos; + crypto_sysctls = register_sysctl_table(crypto_dir_table); +} + +static void crypto_proc_fips_exit(void) +{ + if (crypto_sysctls) + unregister_sysctl_table(crypto_sysctls); +} +#else +#define crypto_proc_fips_init() +#define crypto_proc_fips_exit() +#endif +static void *c_start(struct seq_file *m, loff_t *pos) +{ down_read(&crypto_alg_sem); - list_for_each(v, &crypto_alg_list) - if (!n--) - return list_entry(v, struct crypto_alg, cra_list); - return NULL; + return seq_list_start(&crypto_alg_list, *pos); } static void *c_next(struct seq_file *m, void *p, loff_t *pos) { - struct list_head *v = p; - - (*pos)++; - v = v->next; - return (v == &crypto_alg_list) ? - NULL : list_entry(v, struct crypto_alg, cra_list); + return seq_list_next(p, &crypto_alg_list, pos); } static void c_stop(struct seq_file *m, void *p) @@ -50,12 +79,29 @@ static void c_stop(struct seq_file *m, void *p) static int c_show(struct seq_file *m, void *p) { - struct crypto_alg *alg = (struct crypto_alg *)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 : %d\n", atomic_read(&alg->cra_refcnt)); + seq_printf(m, "selftest : %s\n", + (alg->cra_flags & CRYPTO_ALG_TESTED) ? + "passed" : "unknown"); + + 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) { + switch (alg->cra_flags & (CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_LARVAL)) { case CRYPTO_ALG_TYPE_CIPHER: seq_printf(m, "type : cipher\n"); seq_printf(m, "blocksize : %u\n", alg->cra_blocksize); @@ -64,13 +110,6 @@ static int c_show(struct seq_file *m, void *p) seq_printf(m, "max keysize : %u\n", alg->cra_cipher.cia_max_keysize); break; - - case CRYPTO_ALG_TYPE_DIGEST: - seq_printf(m, "type : digest\n"); - seq_printf(m, "blocksize : %u\n", alg->cra_blocksize); - seq_printf(m, "digestsize : %u\n", - alg->cra_digest.dia_digestsize); - break; case CRYPTO_ALG_TYPE_COMPRESS: seq_printf(m, "type : compression\n"); break; @@ -79,11 +118,12 @@ static int c_show(struct seq_file *m, void *p) break; } +out: seq_putc(m, '\n'); return 0; } -static struct seq_operations crypto_seq_ops = { +static const struct seq_operations crypto_seq_ops = { .start = c_start, .next = c_next, .stop = c_stop, @@ -95,7 +135,7 @@ static int crypto_info_open(struct inode *inode, struct file *file) return seq_open(file, &crypto_seq_ops); } -static struct file_operations proc_crypto_ops = { +static const struct file_operations proc_crypto_ops = { .open = crypto_info_open, .read = seq_read, .llseek = seq_lseek, @@ -104,9 +144,12 @@ static struct file_operations proc_crypto_ops = { void __init crypto_init_proc(void) { - struct proc_dir_entry *proc; - - proc = create_proc_entry("crypto", 0, NULL); - if (proc) - proc->proc_fops = &proc_crypto_ops; + proc_create("crypto", 0, NULL, &proc_crypto_ops); + crypto_proc_fips_init(); +} + +void __exit crypto_exit_proc(void) +{ + crypto_proc_fips_exit(); + remove_proc_entry("crypto", NULL); } |