*** empty log message ***

git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@2148 dc483132-0cff-0310-8789-dd5450dbe970

3 files changed, 274 insertions, 0 deletions

diff --git a/src/lib/gssapi/dsp_status.c b/src/lib/gssapi/dsp_status.c
new file mode 100644
index 0000000000..433d1c151d
--- /dev/null
+++ b/src/lib/gssapi/dsp_status.c
@@ -0,0 +1,133 @@
+/*
+ * dsp_status.c --- display_status
+ * 
+ * $Source$
+ * $Author$
+ * $Header$
+ * 
+ * Copyright 1991 by the Massachusetts Institute of Technology.
+ * All Rights Reserved.
+ *
+ * For copying and distribution information, please see the file
+ * <krb5/copyright.h>.
+ *
+ */
+
+#include <gssapi.h>
+
+#define GSS_CE_MASK 0xFF000000
+#define GSS_RE_MASK 0x00FF0000
+#define GSS_SS_MASK 0x0000FFFF
+
+#define GSS_CONTEXT_THIS(i) ((i) & 0xFFFF)
+#define GSS_CONTEXT_NEXT(i) ((i) >> 16)
+
+struct gss_error_table {
+	int	code;
+	int	mask;
+	char	*string;
+};
+
+static struct gss_error_table table[] = {
+       { GSS_S_CALL_INACCESSIBLE_READ, GSS_CE_MASK,
+	 "GSSAPI Calling Error: Inaccessible read" },
+       { GSS_S_CALL_INACCESSIBLE_WRITE, GSS_CE_MASK,
+	 "GSSAPI Calling Error: Inaccessible write" },
+       { GSS_S_CALL_BAD_STRUCTURE, GSS_CE_MASK,
+	 "GSSAPI Calling Error: Bad Structure" },
+       { GSS_S_BAD_MECH, GSS_RE_MASK,
+	 "GSSAPI Routine Error: Bad Mechanism" },
+       { GSS_S_BAD_NAME, GSS_RE_MASK,
+	 "GSSAPI Routine Error: Bad Name" },
+       { GSS_S_BAD_NAMETYPE, GSS_RE_MASK,
+	 "GSSAPI Routine Error: Bad Nametype" },
+       { GSS_S_BAD_BINDINGS, GSS_RE_MASK,
+	 "GSSAPI Routine Error: Bad Bindings" },
+       { GSS_S_BAD_STATUS, GSS_RE_MASK,
+	 "GSSAPI Routine Error: Bad Status" },
+       { GSS_S_BAD_SIG, GSS_RE_MASK,
+	 "GSSAPI Routine Error: Invalid Signature" },
+       { GSS_S_NO_CRED, GSS_RE_MASK,
+	 "GSSAPI Routine Error: Missing Credentials" },
+       { GSS_S_NO_CONTEXT, GSS_RE_MASK,
+	 "GSSAPI Routine Error: Missing Context" },
+       { GSS_S_DEFECTIVE_TOKEN, GSS_RE_MASK,
+	 "GSSAPI Routine Error: Defective Token" },
+       { GSS_S_DEFECTIVE_CREDENTIAL, GSS_RE_MASK,
+	 "GSSAPI Routine Error: Defective Credential" },
+       { GSS_S_CREDENTIALS_EXPIRED, GSS_RE_MASK,
+	 "GSSAPI Routine Error: Credentials Expired" },
+       { GSS_S_CONTEXT_EXPIRED, GSS_RE_MASK,
+	 "GSSAPI Routine Error: Context expired" },
+       { GSS_S_FAILURE, GSS_RE_MASK,
+	 "GSSAPI Routine Error: Mechanism-specific failure" },
+};
+static int nentries = sizeof (struct gss_error_table) / sizeof (*table);
+
+OM_uint32 gss_display_status(minor_status, status_value, status_type,
+			     mech_type, message_context, status_string)
+	OM_uint32	*minor_status;
+	int		status_value;
+	int		status_type;
+	gss_OID		mech_type;
+	int		*message_context;
+	gss_buffer_t    status_string;
+{
+	const char	*str;
+	int	next;
+	int	retval;
+	
+	*minor_status = 0;
+	
+	if (status_type == GSS_C_MECH_CODE) {
+		/*
+		 * We only handle Kerberos V5...
+		 */
+		if ((mech_type != GSS_C_NULL_OID) &&
+		    !gss_compare_OID(mech_type, &gss_OID_krb5)) {
+			return(GSS_S_BAD_MECH);
+		}
+		str = error_message(status_value);
+		retval = GSS_S_COMPLETE;
+		goto return_message_found;
+	} else {
+		next = *message_context;
+
+		if (next < 0 || next >= nentries) {
+			return(GSS_S_FAILURE);
+		}
+		if (next == 0) {
+			while (next < nentries) {
+				if ((status_value & table[next].mask) ==
+				    table[next].code)
+					break;
+				next++;
+			}
+			if (next >= nentries)
+				return(GSS_S_BAD_STATUS);
+		}
+		str = table[next].string;
+		next++;
+		while (next < nentries) {
+			if ((status_value & table[next].mask) ==
+			    table[next].code)
+				break;
+			next++;
+		}
+		if (next >= nentries)
+			retval = GSS_S_COMPLETE;
+		else
+			retval = GSS_S_CONTINUE_NEEDED;
+		*message_context = next;
+	}
+
+return_message_found:
+	status_string->length = strlen(str);
+	if (!(status_string->value = malloc(status_string->length))) {
+		*minor_status = ENOMEM;
+		return(GSS_S_FAILURE);
+	}
+	strcpy(status_string->value, str);
+	return(GSS_S_COMPLETE);
+}
+
diff --git a/src/lib/gssapi/sign.c b/src/lib/gssapi/sign.c
new file mode 100644
index 0000000000..c6b579076f
--- /dev/null
+++ b/src/lib/gssapi/sign.c
@@ -0,0 +1,72 @@
+/*
+ * sign.c --- sign message
+ * 
+ * $Source$
+ * $Author$
+ * $Header$
+ * 
+ * Copyright 1991 by the Massachusetts Institute of Technology.
+ * All Rights Reserved.
+ *
+ * For copying and distribution information, please see the file
+ * <krb5/copyright.h>.
+ *
+ */
+
+#include <gssapi.h>
+#include <krb5/asn1.h>
+
+OM_uint32 gss_sign(minor_status, context, qop_req, 
+		   input_message_buffer, output_message_buffer)
+	OM_uint32	*minor_status;
+	gss_ctx_id_t	context;
+	int		qop_req;
+	gss_buffer_t	input_message_buffer;
+	gss_buffer_t	output_message_buffer;
+{
+	krb5_data	inbuf, outbuf, *scratch;
+	int	safe_flags = 0;
+	krb5_safe *message;
+	
+	*minor_status = 0;
+
+	inbuf.length = input_message_buffer->length;
+	inbuf.data = input_message_buffer->value;
+
+
+	if (context->flags & GSS_C_SEQUENCE_FLAG)
+		safe_flags = KRB5_SAFE_DOSEQUENCE|KRB5_SAFE_NOTIME;
+	if (*minor_status = krb5_mk_safe(&inbuf,
+					 CKSUMTYPE_RSA_MD4_DES,
+					 context->session_key,
+					 &context->my_address,
+					 &context->his_address,
+					 context->my_seq_num,
+					 safe_flags,
+					 0, /* no rcache */
+					 &outbuf))
+		return(GSS_S_FAILURE);
+	if (*minor_status = decode_krb5_safe(&outbuf, &message))
+		return(GSS_S_FAILURE);
+	message->user_data.length = 1;
+	xfree(outbuf.data);
+	if (*minor_status = encode_krb5_safe(&message, &scratch)) {
+		krb5_free_safe(message);
+		return(GSS_S_FAILURE);
+	}
+	krb5_free_safe(message);
+	if (*minor_status = gss_make_token(minor_status,
+					   GSS_API_KRB5_TYPE,
+					   GSS_API_KRB5_SIGN,
+					   scratch->length,
+					   scratch->data,
+					   output_message_buffer)) {
+		krb5_free_data(scratch);
+		return(GSS_S_FAILURE);
+	}
+	krb5_free_data(scratch);
+	if (context->flags & GSS_C_SEQUENCE_FLAG)
+		context->my_seq_num++;
+	return(GSS_S_COMPLETE);
+}
+	
diff --git a/src/lib/gssapi/verify.c b/src/lib/gssapi/verify.c
new file mode 100644
index 0000000000..d212655c4e
--- /dev/null
+++ b/src/lib/gssapi/verify.c
@@ -0,0 +1,69 @@
+/*
+ * verify.c --- verify  message
+ * 
+ * $Source$
+ * $Author$
+ * $Header$
+ * 
+ * Copyright 1991 by the Massachusetts Institute of Technology.
+ * All Rights Reserved.
+ *
+ * For copying and distribution information, please see the file
+ * <krb5/copyright.h>.
+ *
+ */
+
+#include <gssapi.h>
+#include <krb5/asn1.h>
+
+OM_uint32 gss_verify(minor_status, context, message_buffer,  
+		   token_buffer, qop_state)
+	OM_uint32	*minor_status;
+	gss_ctx_id_t	context;
+	gss_buffer_t	message_buffer;
+	gss_buffer_t	token_buffer;
+	int		*qop_state;
+{
+	OM_uint32	retval;
+	krb5_data	inbuf, outbuf, *scratch;
+	krb5_safe	*message;
+	int	safe_flags = 0;
+
+	*minor_status = 0;
+
+	if (retval = gss_check_token(minor_status, message_buffer,
+				     GSS_API_KRB5_TYPE, GSS_API_KRB5_SIGN))
+		return(retval);
+	inbuf.length = token_buffer->length-4;
+	inbuf.data = ( (char *) token_buffer->value)+4;
+	if (*minor_status = decode_krb5_safe(&inbuf, &message))
+		return(GSS_S_FAILURE);
+	if (message->user_data.data)
+		xfree(message->user_data.data);
+	message->user_data.length = message_buffer->length;
+	message->user_data.data = message_buffer->value;
+	if (*minor_status = encode_krb5_safe(&message,  &scratch)) {
+		message->user_data.data = NULL;
+		krb5_free_safe(message);
+		return(GSS_S_FAILURE);
+	}
+	message->user_data.data = NULL;
+	krb5_free_safe(message);
+	if (context->flags & GSS_C_SEQUENCE_FLAG)
+		safe_flags = KRB5_SAFE_DOSEQUENCE|KRB5_SAFE_NOTIME;
+	if (*minor_status = krb5_rd_safe(scratch,
+					 context->session_key,
+					 &context->his_address,
+					 &context->my_address,
+					 context->his_seq_num,
+					 safe_flags,
+					 0, /* no rcache */
+					 &outbuf)) {
+		krb5_free_data(scratch);
+		return(GSS_S_FAILURE);
+	}
+	krb5_free_data(scratch);
+	if (qop_state)
+		*qop_state = 0;
+	return(GSS_S_COMPLETE);
+}