/*
- * Copyright (c) 2010, JANET(UK)
+ * Copyright (c) 2011, JANET(UK)
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* SUCH DAMAGE.
*/
+/*
+ * Message protection services: wrap.
+ */
+
#include "gssapiP_eap.h"
+OM_uint32
+gss_wrap(OM_uint32 *minor,
+ gss_ctx_id_t ctx,
+ int conf_req_flag,
+ gss_qop_t qop_req,
+ gss_buffer_t input_message_buffer,
+ int *conf_state,
+ gss_buffer_t output_message_buffer)
+{
+ OM_uint32 major;
+
+ if (ctx == GSS_C_NO_CONTEXT) {
+ *minor = EINVAL;
+ return GSS_S_CALL_INACCESSIBLE_READ | GSS_S_NO_CONTEXT;
+ }
+
+ *minor = 0;
+
+ GSSEAP_MUTEX_LOCK(&ctx->mutex);
+
+ if (!CTX_IS_ESTABLISHED(ctx)) {
+ major = GSS_S_NO_CONTEXT;
+ *minor = GSSEAP_CONTEXT_INCOMPLETE;
+ goto cleanup;
+ }
+
+ major = gssEapWrap(minor, ctx, conf_req_flag, qop_req,
+ input_message_buffer,
+ conf_state, output_message_buffer);
+ if (GSS_ERROR(major))
+ goto cleanup;
+
+cleanup:
+ GSSEAP_MUTEX_UNLOCK(&ctx->mutex);
+
+ return major;
+}
+
+OM_uint32
+gssEapWrap(OM_uint32 *minor,
+ gss_ctx_id_t ctx,
+ int conf_req_flag,
+ gss_qop_t qop_req,
+ gss_buffer_t input_message_buffer,
+ int *conf_state,
+ gss_buffer_t output_message_buffer)
+{
+ OM_uint32 major, tmpMinor;
+ gss_iov_buffer_desc iov[4];
+ unsigned char *p;
+ int i;
+
+ iov[0].type = GSS_IOV_BUFFER_TYPE_HEADER;
+ iov[0].buffer.value = NULL;
+ iov[0].buffer.length = 0;
+
+ iov[1].type = GSS_IOV_BUFFER_TYPE_DATA;
+ iov[1].buffer = *input_message_buffer;
+
+ iov[2].type = GSS_IOV_BUFFER_TYPE_PADDING;
+ iov[2].buffer.value = NULL;
+ iov[2].buffer.length = 0;
+
+ iov[3].type = GSS_IOV_BUFFER_TYPE_TRAILER;
+ iov[3].buffer.value = NULL;
+ iov[3].buffer.length = 0;
+
+ major = gssEapWrapIovLength(minor, ctx, conf_req_flag, qop_req,
+ NULL, iov, 4);
+ if (GSS_ERROR(major)) {
+ return major;
+ }
+
+ for (i = 0, output_message_buffer->length = 0; i < 4; i++) {
+ output_message_buffer->length += iov[i].buffer.length;
+ }
+
+ output_message_buffer->value = GSSEAP_MALLOC(output_message_buffer->length);
+ if (output_message_buffer->value == NULL) {
+ *minor = ENOMEM;
+ return GSS_S_FAILURE;
+ }
+
+ for (i = 0, p = output_message_buffer->value; i < 4; i++) {
+ if (iov[i].type == GSS_IOV_BUFFER_TYPE_DATA) {
+ memcpy(p, input_message_buffer->value, input_message_buffer->length);
+ }
+ iov[i].buffer.value = p;
+ p += iov[i].buffer.length;
+ }
+
+ major = gssEapWrapOrGetMIC(minor, ctx, conf_req_flag, conf_state,
+ iov, 4, TOK_TYPE_WRAP);
+ if (GSS_ERROR(major)) {
+ gss_release_buffer(&tmpMinor, output_message_buffer);
+ }
+
+ return major;
+}