-/* crypto/evp/names.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
- *
+ *
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
- *
+ *
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
- *
+ *
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
- * 4. If you include any Windows specific code (or a derivative thereof) from
+ * 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
- *
+ *
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
- *
+ *
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
*/
#include <stdio.h>
-#include "cryptlib.h"
-#include "evp.h"
-#include "objects.h"
-
-typedef struct aliases_st {
- char *alias;
- /* This must be the last field becaue I will allocate things
- * so they go off the end of it */
- char name[4];
- } ALIASES;
-
-static STACK /* ALIASES */ *aliases=NULL;
-static STACK /* EVP_CIPHERS */ *ciphers=NULL;
-static STACK /* EVP_MD */ *digests=NULL;
-
-static int cipher_nid_cmp(a,b)
-EVP_CIPHER **a,**b;
- { return((*a)->nid - (*b)->nid); }
-
-static int digest_type_cmp(a,b)
-EVP_MD **a,**b;
- { return((*a)->pkey_type - (*b)->pkey_type); }
-
-int EVP_add_cipher(c)
-EVP_CIPHER *c;
- {
- int i;
-
- if (ciphers == NULL)
- {
- ciphers=sk_new(cipher_nid_cmp);
- if (ciphers == NULL) return(0);
- }
- if ((i=sk_find(ciphers,(char *)c)) >= 0)
- {
- if (sk_value(ciphers,i) == (char *)c)
- return(1);
- sk_delete(ciphers,i);
- }
- return(sk_push(ciphers,(char *)c));
- }
-
-int EVP_add_digest(md)
-EVP_MD *md;
- {
- int i;
- char *n;
-
- if (digests == NULL)
- {
- digests=sk_new(digest_type_cmp);
- if (digests == NULL) return(0);
- }
- if ((i=sk_find(digests,(char *)md)) >= 0)
- {
- if (sk_value(digests,i) == (char *)md)
- return(1);
- sk_delete(digests,i);
- }
- if (md->type != md->pkey_type)
- {
- n=OBJ_nid2sn(md->pkey_type);
- EVP_add_alias(n,OBJ_nid2sn(md->type));
- EVP_add_alias(n,OBJ_nid2ln(md->type));
- }
- sk_push(digests,(char *)md);
- return(1);
- }
-
-static int alias_cmp(a,b)
-ALIASES **a,**b;
- {
- return(strcmp((*a)->alias,(*b)->alias));
- }
-
-int EVP_add_alias(name,aname)
-char *name;
-char *aname;
- {
- int l1,l2,i;
- ALIASES *a;
- char *p;
-
- if ((name == NULL) || (aname == NULL)) return(0);
- l1=strlen(name)+1;
- l2=strlen(aname)+1;
- i=sizeof(ALIASES)+l1+l2;
- if ((a=(ALIASES *)Malloc(i)) == NULL)
- return(0);
- strcpy(a->name,name);
- p= &(a->name[l1]);
- strcpy(p,aname);
- a->alias=p;
-
- if (aliases == NULL)
- {
- aliases=sk_new(alias_cmp);
- if (aliases == NULL) goto err;
- }
-
- if ((i=sk_find(aliases,(char *)a)) >= 0)
- {
- Free(sk_delete(aliases,i));
- }
- if (!sk_push(aliases,(char *)a)) goto err;
- return(1);
-err:
- return(0);
- }
-
-int EVP_delete_alias(name)
-char *name;
- {
- ALIASES a;
- int i;
-
- if (aliases != NULL)
- {
- a.alias=name;
- if ((i=sk_find(aliases,(char *)&a)) >= 0)
- {
- Free(sk_delete(aliases,i));
- return(1);
- }
- }
- return(0);
- }
-
-EVP_CIPHER *EVP_get_cipherbyname(name)
-char *name;
- {
- int nid,num=6,i;
- EVP_CIPHER c,*cp;
- ALIASES a,*ap;
-
- if (ciphers == NULL) return(NULL);
- for (;;)
- {
- if (num-- <= 0) return(NULL);
- if (aliases != NULL)
- {
- a.alias=name;
- i=sk_find(aliases,(char *)&a);
- if (i >= 0)
- {
- ap=(ALIASES *)sk_value(aliases,i);
- name=ap->name;
- continue;
- }
- }
-
- nid=OBJ_txt2nid(name);
- if (nid == NID_undef) return(NULL);
- c.nid=nid;
- i=sk_find(ciphers,(char *)&c);
- if (i >= 0)
- {
- cp=(EVP_CIPHER *)sk_value(ciphers,i);
- return(cp);
- }
- else
- return(NULL);
- }
- }
-
-EVP_MD *EVP_get_digestbyname(name)
-char *name;
- {
- int nid,num=6,i;
- EVP_MD c,*cp;
- ALIASES a,*ap;
-
- if (digests == NULL) return(NULL);
-
- for (;;)
- {
- if (num-- <= 0) return(NULL);
-
- if (aliases != NULL)
- {
- a.alias=name;
- i=sk_find(aliases,(char *)&a);
- if (i >= 0)
- {
- ap=(ALIASES *)sk_value(aliases,i);
- name=ap->name;
- continue;
- }
- }
-
- nid=OBJ_txt2nid(name);
- if (nid == NID_undef) return(NULL);
- c.pkey_type=nid;
- i=sk_find(digests,(char *)&c);
- if (i >= 0)
- {
- cp=(EVP_MD *)sk_value(digests,i);
- return(cp);
- }
- else
- return(NULL);
- }
- }
-
-void EVP_cleanup()
- {
- int i;
-
- if (aliases != NULL)
- {
- for (i=0; i<sk_num(aliases); i++)
- Free(sk_value(aliases,i));
- sk_free(aliases);
- aliases=NULL;
- }
- if (ciphers != NULL)
- {
- sk_free(ciphers);
- ciphers=NULL;
- }
- if (digests != NULL)
- {
- sk_free(digests);
- digests=NULL;
- }
- }
+#include "internal/cryptlib.h"
+#include <openssl/evp.h>
+#include <openssl/objects.h>
+#include <openssl/x509.h>
+#include "internal/evp_int.h"
+
+int EVP_add_cipher(const EVP_CIPHER *c)
+{
+ int r;
+
+ if (c == NULL)
+ return 0;
+
+ r = OBJ_NAME_add(OBJ_nid2sn(c->nid), OBJ_NAME_TYPE_CIPHER_METH,
+ (const char *)c);
+ if (r == 0)
+ return (0);
+ check_defer(c->nid);
+ r = OBJ_NAME_add(OBJ_nid2ln(c->nid), OBJ_NAME_TYPE_CIPHER_METH,
+ (const char *)c);
+ return (r);
+}
+
+int EVP_add_digest(const EVP_MD *md)
+{
+ int r;
+ const char *name;
+
+ name = OBJ_nid2sn(md->type);
+ r = OBJ_NAME_add(name, OBJ_NAME_TYPE_MD_METH, (const char *)md);
+ if (r == 0)
+ return (0);
+ check_defer(md->type);
+ r = OBJ_NAME_add(OBJ_nid2ln(md->type), OBJ_NAME_TYPE_MD_METH,
+ (const char *)md);
+ if (r == 0)
+ return (0);
+
+ if (md->pkey_type && md->type != md->pkey_type) {
+ r = OBJ_NAME_add(OBJ_nid2sn(md->pkey_type),
+ OBJ_NAME_TYPE_MD_METH | OBJ_NAME_ALIAS, name);
+ if (r == 0)
+ return (0);
+ check_defer(md->pkey_type);
+ r = OBJ_NAME_add(OBJ_nid2ln(md->pkey_type),
+ OBJ_NAME_TYPE_MD_METH | OBJ_NAME_ALIAS, name);
+ }
+ return (r);
+}
+
+const EVP_CIPHER *EVP_get_cipherbyname(const char *name)
+{
+ const EVP_CIPHER *cp;
+
+ if (!OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_CIPHERS, NULL))
+ return NULL;
+
+ cp = (const EVP_CIPHER *)OBJ_NAME_get(name, OBJ_NAME_TYPE_CIPHER_METH);
+ return (cp);
+}
+
+const EVP_MD *EVP_get_digestbyname(const char *name)
+{
+ const EVP_MD *cp;
+
+ if (!OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_DIGESTS, NULL))
+ return NULL;
+
+ cp = (const EVP_MD *)OBJ_NAME_get(name, OBJ_NAME_TYPE_MD_METH);
+ return (cp);
+}
+
+void EVP_cleanup(void)
+{
+ OBJ_NAME_cleanup(OBJ_NAME_TYPE_CIPHER_METH);
+ OBJ_NAME_cleanup(OBJ_NAME_TYPE_MD_METH);
+ /*
+ * The above calls will only clean out the contents of the name hash
+ * table, but not the hash table itself. The following line does that
+ * part. -- Richard Levitte
+ */
+ OBJ_NAME_cleanup(-1);
+
+ EVP_PBE_cleanup();
+ if (obj_cleanup_defer == 2) {
+ obj_cleanup_defer = 0;
+ OBJ_cleanup();
+ }
+ OBJ_sigid_free();
+}
+
+struct doall_cipher {
+ void *arg;
+ void (*fn) (const EVP_CIPHER *ciph,
+ const char *from, const char *to, void *arg);
+};
+
+static void do_all_cipher_fn(const OBJ_NAME *nm, void *arg)
+{
+ struct doall_cipher *dc = arg;
+ if (nm->alias)
+ dc->fn(NULL, nm->name, nm->data, dc->arg);
+ else
+ dc->fn((const EVP_CIPHER *)nm->data, nm->name, NULL, dc->arg);
+}
+
+void EVP_CIPHER_do_all(void (*fn) (const EVP_CIPHER *ciph,
+ const char *from, const char *to, void *x),
+ void *arg)
+{
+ struct doall_cipher dc;
+
+ /* Ignore errors */
+ OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_CIPHERS, NULL);
+
+ dc.fn = fn;
+ dc.arg = arg;
+ OBJ_NAME_do_all(OBJ_NAME_TYPE_CIPHER_METH, do_all_cipher_fn, &dc);
+}
+
+void EVP_CIPHER_do_all_sorted(void (*fn) (const EVP_CIPHER *ciph,
+ const char *from, const char *to,
+ void *x), void *arg)
+{
+ struct doall_cipher dc;
+
+ /* Ignore errors */
+ OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_CIPHERS, NULL);
+
+ dc.fn = fn;
+ dc.arg = arg;
+ OBJ_NAME_do_all_sorted(OBJ_NAME_TYPE_CIPHER_METH, do_all_cipher_fn, &dc);
+}
+
+struct doall_md {
+ void *arg;
+ void (*fn) (const EVP_MD *ciph,
+ const char *from, const char *to, void *arg);
+};
+
+static void do_all_md_fn(const OBJ_NAME *nm, void *arg)
+{
+ struct doall_md *dc = arg;
+ if (nm->alias)
+ dc->fn(NULL, nm->name, nm->data, dc->arg);
+ else
+ dc->fn((const EVP_MD *)nm->data, nm->name, NULL, dc->arg);
+}
+
+void EVP_MD_do_all(void (*fn) (const EVP_MD *md,
+ const char *from, const char *to, void *x),
+ void *arg)
+{
+ struct doall_md dc;
+
+ /* Ignore errors */
+ OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_DIGESTS, NULL);
+
+ dc.fn = fn;
+ dc.arg = arg;
+ OBJ_NAME_do_all(OBJ_NAME_TYPE_MD_METH, do_all_md_fn, &dc);
+}
+
+void EVP_MD_do_all_sorted(void (*fn) (const EVP_MD *md,
+ const char *from, const char *to,
+ void *x), void *arg)
+{
+ struct doall_md dc;
+
+ OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_DIGESTS, NULL);
+
+ dc.fn = fn;
+ dc.arg = arg;
+ OBJ_NAME_do_all_sorted(OBJ_NAME_TYPE_MD_METH, do_all_md_fn, &dc);
+}
projects / openssl.git / blobdiff