/*
- * 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.
*/
+/*
+ * Return extended properties of a context handle.
+ */
+
#include "gssapiP_eap.h"
+static OM_uint32
+inquireSessionKey(OM_uint32 *minor,
+ const gss_ctx_id_t ctx,
+ const gss_OID desired_object GSSEAP_UNUSED,
+ gss_buffer_set_t *dataSet)
+{
+ OM_uint32 major, tmpMinor;
+ unsigned char oidBuf[16];
+ gss_buffer_desc buf;
+ gss_OID_desc oid;
+
+ buf.length = KRB_KEY_LENGTH(&ctx->rfc3961Key);
+ buf.value = KRB_KEY_DATA(&ctx->rfc3961Key);
+
+ major = gss_add_buffer_set_member(minor, &buf, dataSet);
+ if (GSS_ERROR(major))
+ goto cleanup;
+
+ oid.length = sizeof(oidBuf);
+ oid.elements = oidBuf;
+
+ major = composeOid(minor,
+ "\x2a\x86\x48\x86\xf7\x12\x01\x02\x02\x04",
+ 10,
+ ctx->encryptionType,
+ &oid);
+ if (GSS_ERROR(major))
+ goto cleanup;
+
+ buf.length = oid.length;
+ buf.value = oid.elements;
+
+ major = gss_add_buffer_set_member(minor, &buf, dataSet);
+ if (GSS_ERROR(major))
+ goto cleanup;
+
+ major = GSS_S_COMPLETE;
+ *minor = 0;
+
+cleanup:
+ if (GSS_ERROR(major) && *dataSet != GSS_C_NO_BUFFER_SET) {
+ gss_buffer_set_t set = *dataSet;
+
+ if (set->count != 0)
+ memset(set->elements[0].value, 0, set->elements[0].length);
+ gss_release_buffer_set(&tmpMinor, dataSet);
+ }
+
+ return major;
+}
+
+static struct {
+ gss_OID_desc oid;
+ OM_uint32 (*inquire)(OM_uint32 *, const gss_ctx_id_t,
+ const gss_OID, gss_buffer_set_t *);
+} inquireCtxOps[] = {
+ {
+ /* GSS_C_INQ_SSPI_SESSION_KEY */
+ { 11, "\x2a\x86\x48\x86\xf7\x12\x01\x02\x02\x05\x05" },
+ inquireSessionKey
+ },
+ {
+ /* GSS_KRB5_EXPORT_LUCID_SEC_CONTEXT + v1 */
+ { 12, "\x2a\x86\x48\x86\xf7\x12\x01\x02\x02\x05\x06\x01" },
+ gssEapExportLucidSecContext
+ },
+};
+
+OM_uint32
+gss_inquire_sec_context_by_oid(OM_uint32 *minor,
+ const gss_ctx_id_t ctx,
+ const gss_OID desired_object,
+ gss_buffer_set_t *data_set)
+{
+ OM_uint32 major;
+ int i;
+
+ *data_set = GSS_C_NO_BUFFER_SET;
+
+ GSSEAP_MUTEX_LOCK(&ctx->mutex);
+
+ if (!CTX_IS_ESTABLISHED(ctx)) {
+ *minor = GSSEAP_CONTEXT_INCOMPLETE;
+ major = GSS_S_NO_CONTEXT;
+ goto cleanup;
+ }
+
+ major = GSS_S_UNAVAILABLE;
+ *minor = GSSEAP_BAD_CONTEXT_OPTION;
+
+ for (i = 0; i < sizeof(inquireCtxOps) / sizeof(inquireCtxOps[0]); i++) {
+ if (oidEqual(&inquireCtxOps[i].oid, desired_object)) {
+ major = (*inquireCtxOps[i].inquire)(minor, ctx,
+ desired_object, data_set);
+ break;
+ }
+ }
+
+cleanup:
+ GSSEAP_MUTEX_UNLOCK(&ctx->mutex);
+
+ return major;
+}