Add attribute macros for Heimdal to use

Heimdal uses HEIMDAL_NORETURN_ATTRIBUTE and HEIMDAL_PRINTF_ATTRIBUTE,
and we need to provide a link between these and Samba's function
attribute handling.

Andrew Bartlett

1 files changed, 304 insertions, 0 deletions

diff --git a/source4/heimdal/lib/krb5/salt.c b/source4/heimdal/lib/krb5/salt.c
new file mode 100644
index 0000000000..69375f6a81
--- /dev/null
+++ b/source4/heimdal/lib/krb5/salt.c
@@ -0,0 +1,304 @@
+/*
+ * Copyright (c) 1997 - 2008 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the Institute nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * 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.
+ */
+
+#include "krb5_locl.h"
+
+KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
+krb5_salttype_to_string (krb5_context context,
+			 krb5_enctype etype,
+			 krb5_salttype stype,
+			 char **string)
+{
+    struct encryption_type *e;
+    struct salt_type *st;
+
+    e = _krb5_find_enctype (etype);
+    if (e == NULL) {
+	krb5_set_error_message(context, KRB5_PROG_ETYPE_NOSUPP,
+			       "encryption type %d not supported",
+			       etype);
+	return KRB5_PROG_ETYPE_NOSUPP;
+    }
+    for (st = e->keytype->string_to_key; st && st->type; st++) {
+	if (st->type == stype) {
+	    *string = strdup (st->name);
+	    if (*string == NULL) {
+		krb5_set_error_message (context, ENOMEM,
+					N_("malloc: out of memory", ""));
+		return ENOMEM;
+	    }
+	    return 0;
+	}
+    }
+    krb5_set_error_message (context, HEIM_ERR_SALTTYPE_NOSUPP,
+			    "salttype %d not supported", stype);
+    return HEIM_ERR_SALTTYPE_NOSUPP;
+}
+
+KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
+krb5_string_to_salttype (krb5_context context,
+			 krb5_enctype etype,
+			 const char *string,
+			 krb5_salttype *salttype)
+{
+    struct encryption_type *e;
+    struct salt_type *st;
+
+    e = _krb5_find_enctype (etype);
+    if (e == NULL) {
+	krb5_set_error_message(context, KRB5_PROG_ETYPE_NOSUPP,
+			       N_("encryption type %d not supported", ""),
+			       etype);
+	return KRB5_PROG_ETYPE_NOSUPP;
+    }
+    for (st = e->keytype->string_to_key; st && st->type; st++) {
+	if (strcasecmp (st->name, string) == 0) {
+	    *salttype = st->type;
+	    return 0;
+	}
+    }
+    krb5_set_error_message(context, HEIM_ERR_SALTTYPE_NOSUPP,
+			   N_("salttype %s not supported", ""), string);
+    return HEIM_ERR_SALTTYPE_NOSUPP;
+}
+
+KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
+krb5_get_pw_salt(krb5_context context,
+		 krb5_const_principal principal,
+		 krb5_salt *salt)
+{
+    size_t len;
+    int i;
+    krb5_error_code ret;
+    char *p;
+
+    salt->salttype = KRB5_PW_SALT;
+    len = strlen(principal->realm);
+    for (i = 0; i < principal->name.name_string.len; ++i)
+	len += strlen(principal->name.name_string.val[i]);
+    ret = krb5_data_alloc (&salt->saltvalue, len);
+    if (ret)
+	return ret;
+    p = salt->saltvalue.data;
+    memcpy (p, principal->realm, strlen(principal->realm));
+    p += strlen(principal->realm);
+    for (i = 0; i < principal->name.name_string.len; ++i) {
+	memcpy (p,
+		principal->name.name_string.val[i],
+		strlen(principal->name.name_string.val[i]));
+	p += strlen(principal->name.name_string.val[i]);
+    }
+    return 0;
+}
+
+KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
+krb5_free_salt(krb5_context context,
+	       krb5_salt salt)
+{
+    krb5_data_free(&salt.saltvalue);
+    return 0;
+}
+
+KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
+krb5_string_to_key_data (krb5_context context,
+			 krb5_enctype enctype,
+			 krb5_data password,
+			 krb5_principal principal,
+			 krb5_keyblock *key)
+{
+    krb5_error_code ret;
+    krb5_salt salt;
+
+    ret = krb5_get_pw_salt(context, principal, &salt);
+    if(ret)
+	return ret;
+    ret = krb5_string_to_key_data_salt(context, enctype, password, salt, key);
+    krb5_free_salt(context, salt);
+    return ret;
+}
+
+KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
+krb5_string_to_key (krb5_context context,
+		    krb5_enctype enctype,
+		    const char *password,
+		    krb5_principal principal,
+		    krb5_keyblock *key)
+{
+    krb5_data pw;
+    pw.data = rk_UNCONST(password);
+    pw.length = strlen(password);
+    return krb5_string_to_key_data(context, enctype, pw, principal, key);
+}
+
+KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
+krb5_string_to_key_data_salt (krb5_context context,
+			      krb5_enctype enctype,
+			      krb5_data password,
+			      krb5_salt salt,
+			      krb5_keyblock *key)
+{
+    krb5_data opaque;
+    krb5_data_zero(&opaque);
+    return krb5_string_to_key_data_salt_opaque(context, enctype, password,
+					       salt, opaque, key);
+}
+
+/*
+ * Do a string -> key for encryption type `enctype' operation on
+ * `password' (with salt `salt' and the enctype specific data string
+ * `opaque'), returning the resulting key in `key'
+ */
+
+KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
+krb5_string_to_key_data_salt_opaque (krb5_context context,
+				     krb5_enctype enctype,
+				     krb5_data password,
+				     krb5_salt salt,
+				     krb5_data opaque,
+				     krb5_keyblock *key)
+{
+    struct encryption_type *et =_krb5_find_enctype(enctype);
+    struct salt_type *st;
+    if(et == NULL) {
+	krb5_set_error_message(context, KRB5_PROG_ETYPE_NOSUPP,
+			       N_("encryption type %d not supported", ""),
+			       enctype);
+	return KRB5_PROG_ETYPE_NOSUPP;
+    }
+    for(st = et->keytype->string_to_key; st && st->type; st++)
+	if(st->type == salt.salttype)
+	    return (*st->string_to_key)(context, enctype, password,
+					salt, opaque, key);
+    krb5_set_error_message(context, HEIM_ERR_SALTTYPE_NOSUPP,
+			   N_("salt type %d not supported", ""),
+			   salt.salttype);
+    return HEIM_ERR_SALTTYPE_NOSUPP;
+}
+
+/*
+ * Do a string -> key for encryption type `enctype' operation on the
+ * string `password' (with salt `salt'), returning the resulting key
+ * in `key'
+ */
+
+KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
+krb5_string_to_key_salt (krb5_context context,
+			 krb5_enctype enctype,
+			 const char *password,
+			 krb5_salt salt,
+			 krb5_keyblock *key)
+{
+    krb5_data pw;
+    pw.data = rk_UNCONST(password);
+    pw.length = strlen(password);
+    return krb5_string_to_key_data_salt(context, enctype, pw, salt, key);
+}
+
+KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
+krb5_string_to_key_salt_opaque (krb5_context context,
+				krb5_enctype enctype,
+				const char *password,
+				krb5_salt salt,
+				krb5_data opaque,
+				krb5_keyblock *key)
+{
+    krb5_data pw;
+    pw.data = rk_UNCONST(password);
+    pw.length = strlen(password);
+    return krb5_string_to_key_data_salt_opaque(context, enctype,
+					       pw, salt, opaque, key);
+}
+
+
+KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
+krb5_string_to_key_derived(krb5_context context,
+			   const void *str,
+			   size_t len,
+			   krb5_enctype etype,
+			   krb5_keyblock *key)
+{
+    struct encryption_type *et = _krb5_find_enctype(etype);
+    krb5_error_code ret;
+    struct key_data kd;
+    size_t keylen;
+    u_char *tmp;
+
+    if(et == NULL) {
+	krb5_set_error_message (context, KRB5_PROG_ETYPE_NOSUPP,
+				N_("encryption type %d not supported", ""),
+				etype);
+	return KRB5_PROG_ETYPE_NOSUPP;
+    }
+    keylen = et->keytype->bits / 8;
+
+    ALLOC(kd.key, 1);
+    if(kd.key == NULL) {
+	krb5_set_error_message (context, ENOMEM,
+				N_("malloc: out of memory", ""));
+	return ENOMEM;
+    }
+    ret = krb5_data_alloc(&kd.key->keyvalue, et->keytype->size);
+    if(ret) {
+	free(kd.key);
+	return ret;
+    }
+    kd.key->keytype = etype;
+    tmp = malloc (keylen);
+    if(tmp == NULL) {
+	krb5_free_keyblock(context, kd.key);
+	krb5_set_error_message (context, ENOMEM, N_("malloc: out of memory", ""));
+	return ENOMEM;
+    }
+    ret = _krb5_n_fold(str, len, tmp, keylen);
+    if (ret) {
+	free(tmp);
+	krb5_set_error_message (context, ENOMEM, N_("malloc: out of memory", ""));
+	return ret;
+    }
+    kd.schedule = NULL;
+    _krb5_DES3_random_to_key(context, kd.key, tmp, keylen);
+    memset(tmp, 0, keylen);
+    free(tmp);
+    ret = _krb5_derive_key(context,
+			   et,
+			   &kd,
+			   "kerberos", /* XXX well known constant */
+			   strlen("kerberos"));
+    if (ret) {
+	_krb5_free_key_data(context, &kd, et);
+	return ret;
+    }
+    ret = krb5_copy_keyblock_contents(context, kd.key, key);
+    _krb5_free_key_data(context, &kd, et);
+    return ret;
+}