2.4.22

 crypto

diff -urN linux-2.4.21/crypto/proc.c linux-2.4.22/crypto/proc.c
--- linux-2.4.21/crypto/proc.c   1969-12-31 16:00:00.000000000 -0800
+++ linux-2.4.22/crypto/proc.c   2003-08-25 04:44:40.000000000 -0700
@@ -0,0 +1,109 @@
+/*
+ * 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",
+         (alg->cra_module ?
+          alg->cra_module->name :
+          "kernel"));
+   
+   switch (alg->cra_flags & CRYPTO_ALG_TYPE_MASK) {
+   case CRYPTO_ALG_TYPE_CIPHER:
+      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);
+      seq_printf(m, "ivsize       : %u\n",
+               alg->cra_cipher.cia_ivsize);
+      break;
+      
+   case CRYPTO_ALG_TYPE_DIGEST:
+      seq_printf(m, "blocksize    : %u\n", alg->cra_blocksize);
+      seq_printf(m, "digestsize   : %u\n",
+                 alg->cra_digest.dia_digestsize);
+      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;
+}