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author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-17 00:20:36 +0200 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-17 00:20:36 +0200 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /crypto/proc.c | |
download | linux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.xz linux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.zip |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'crypto/proc.c')
-rw-r--r-- | crypto/proc.c | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/crypto/proc.c b/crypto/proc.c new file mode 100644 index 000000000000..630ba91c08f1 --- /dev/null +++ b/crypto/proc.c @@ -0,0 +1,112 @@ +/* + * Scatterlist Cryptographic API. + * + * Procfs information. + * + * Copyright (c) 2002 James Morris <jmorris@intercode.com.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 + * Software Foundation; either version 2 of the License, or (at your option) + * any later version. + * + */ +#include <linux/init.h> +#include <linux/crypto.h> +#include <linux/rwsem.h> +#include <linux/proc_fs.h> +#include <linux/seq_file.h> +#include "internal.h" + +extern struct list_head crypto_alg_list; +extern struct rw_semaphore crypto_alg_sem; + +static void *c_start(struct seq_file *m, loff_t *pos) +{ + struct list_head *v; + loff_t n = *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; +} + +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); +} + +static void c_stop(struct seq_file *m, void *p) +{ + up_read(&crypto_alg_sem); +} + +static int c_show(struct seq_file *m, void *p) +{ + struct crypto_alg *alg = (struct crypto_alg *)p; + + seq_printf(m, "name : %s\n", alg->cra_name); + seq_printf(m, "module : %s\n", module_name(alg->cra_module)); + + 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; + + 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; + default: + seq_printf(m, "type : unknown\n"); + break; + } + + seq_putc(m, '\n'); + return 0; +} + +static struct seq_operations crypto_seq_ops = { + .start = c_start, + .next = c_next, + .stop = c_stop, + .show = c_show +}; + +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 = { + .open = crypto_info_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release +}; + +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; +} |