*/
#include "gssapiP_eap.h"
+#include "radius/radius.h"
+#include "util_radius.h"
+#include "utils/radius_utils.h"
static OM_uint32
policyVariableToFlag(enum eapol_bool_var variable)
extern int wpa_debug_level;
#endif
+#define CHBIND_SERVICE_NAME_FLAG 0x01
+#define CHBIND_HOST_NAME_FLAG 0x02
+#define CHBIND_SERVICE_SPECIFIC_FLAG 0x04
+#define CHBIND_REALM_NAME_FLAG 0x08
+
+extern void TestFunc();
+
+static OM_uint32
+peerInitEapChannelBinding(OM_uint32 *minor, gss_ctx_id_t ctx)
+{
+ struct wpabuf *buf = NULL;
+ int component, components = 0;
+ unsigned int requested = 0;
+ krb5_principal princ;
+ gss_buffer_desc nameBuf;
+ OM_uint32 major = GSS_S_COMPLETE;
+ krb5_context krbContext = NULL;
+
+ /* must have acceptor name, but already checked in
+ * eapGssSmInitAcceptorName(), so maybe redunadant
+ * to do so here as well? */
+ if (!ctx->acceptorName) {
+ *minor = GSSEAP_NO_ACCEPTOR_NAME;
+ return GSS_S_BAD_NAME;
+ }
+
+ princ = ctx->acceptorName->krbPrincipal;
+
+ krbPrincComponentToGssBuffer(princ, 0, &nameBuf);
+ if (nameBuf.length > 0) {
+ major = gssEapRadiusAddAttr(minor, &buf, PW_GSS_ACCEPTOR_SERVICE_NAME,
+ VENDORPEC_UKERNA, &nameBuf);
+ if (GSS_ERROR(major))
+ goto init_chbind_cleanup;
+ requested |= CHBIND_SERVICE_NAME_FLAG;
+ }
+
+ krbPrincComponentToGssBuffer(princ, 1, &nameBuf);
+ if (nameBuf.length > 0) {
+ major = gssEapRadiusAddAttr(minor, &buf, PW_GSS_ACCEPTOR_HOST_NAME,
+ VENDORPEC_UKERNA, &nameBuf);
+ if (GSS_ERROR(major))
+ goto init_chbind_cleanup;
+ requested |= CHBIND_HOST_NAME_FLAG;
+ }
+
+ GSSEAP_KRB_INIT(&krbContext);
+ *minor = krbPrincUnparseServiceSpecifics(krbContext, princ, &nameBuf);
+ if (*minor)
+ goto init_chbind_cleanup;
+
+ if (nameBuf.length > 0) {
+ major = gssEapRadiusAddAttr(minor, &buf,
+ PW_GSS_ACCEPTOR_SERVICE_SPECIFIC,
+ VENDORPEC_UKERNA, &nameBuf);
+ if (GSS_ERROR(major)) {
+ krbFreeUnparsedName(krbContext, &nameBuf);
+ goto init_chbind_cleanup;
+ }
+ requested |= CHBIND_SERVICE_SPECIFIC_FLAG;
+ }
+ krbFreeUnparsedName(krbContext, &nameBuf);
+
+ krbPrincRealmToGssBuffer(princ, &nameBuf);
+ if (nameBuf.length > 0) {
+ major = gssEapRadiusAddAttr(minor, &buf,
+ PW_GSS_ACCEPTOR_REALM_NAME,
+ VENDORPEC_UKERNA, &nameBuf);
+ requested |= CHBIND_REALM_NAME_FLAG;
+ }
+
+ if (requested==0) {
+ wpabuf_free(buf);
+ *minor = GSSEAP_BAD_ACCEPTOR_NAME;
+ return GSS_S_BAD_NAME;
+ }
+ ctx->initiatorCtx.chbindData = buf;
+ ctx->initiatorCtx.chbindReqFlags = requested;
+ buf = NULL;
+init_chbind_cleanup:
+ wpabuf_free(buf);
+ return major;
+}
+
+static void
+peerProcessChbindResponse(void *context, int code, int nsid,
+ u8 *data, size_t len)
+{
+ radius_parser msg, vendor_specific;
+ gss_ctx_id_t ctx = (gss_ctx_id_t )context;
+ void *vsadata;
+ u8 type;
+ u32 vendor_id;
+ u32 accepted = 0;
+ size_t vsadata_len;
+ int i;
+
+ if (nsid != CHBIND_NSID_RADIUS)
+ return;
+ msg = radius_parser_start(data, len);
+ if (!msg)
+ return;
+ while (radius_parser_parse_tlv(msg, &type, &vendor_id, &vsadata,
+ &vsadata_len) == 0) {
+ void *unused_data;
+ size_t unused_len;
+ u8 vendor_type;
+
+ if ((type != RADIUS_ATTR_VENDOR_SPECIFIC) ||
+ (vendor_id != VENDORPEC_UKERNA))
+ continue;
+ vendor_specific = radius_parser_start(vsadata, vsadata_len);
+ if (!vendor_specific)
+ continue;
+ while (radius_parser_parse_vendor_specific(vendor_specific,
+ &vendor_type,
+ &unused_data,
+ &unused_len) == 0) {
+ switch (vendor_type) {
+ case PW_GSS_ACCEPTOR_SERVICE_NAME:
+ accepted |= CHBIND_SERVICE_NAME_FLAG;
+ break;
+ case PW_GSS_ACCEPTOR_HOST_NAME:
+ accepted |= CHBIND_HOST_NAME_FLAG;
+ break;
+ case PW_GSS_ACCEPTOR_SERVICE_SPECIFIC:
+ accepted |= CHBIND_SERVICE_SPECIFIC_FLAG;
+ break;
+ case PW_GSS_ACCEPTOR_REALM_NAME:
+ accepted |= CHBIND_REALM_NAME_FLAG;
+ break;
+ }
+ }
+ radius_parser_finish(vendor_specific);
+ }
+ radius_parser_finish(msg);
+ if ((code == CHBIND_CODE_SUCCESS) &&
+ (accepted == ctx->initiatorCtx.chbindReqFlags)) {
+ ctx->flags |= CTX_FLAG_EAP_CHBIND_ACCEPT;
+ /* Accepted! */
+ } else {
+ /* log failures? */
+ }
+}
+
static OM_uint32
peerConfigInit(OM_uint32 *minor, gss_ctx_id_t ctx)
{
eapPeerConfig->subject_match = (unsigned char *)cred->subjectNameConstraint.value;
eapPeerConfig->altsubject_match = (unsigned char *)cred->subjectAltNameConstraint.value;
+ /* eap channel binding */
+ if (ctx->initiatorCtx.chbindData)
+ {
+ struct eap_peer_chbind_config *chbind_config =
+ (struct eap_peer_chbind_config *)
+ GSSEAP_MALLOC(sizeof(struct eap_peer_chbind_config));
+ if (chbind_config == NULL) {
+ *minor = ENOMEM;
+ return GSS_S_FAILURE;
+ }
+
+ chbind_config->req_data = wpabuf_mhead_u8(ctx->initiatorCtx.chbindData);
+ chbind_config->req_data_len = wpabuf_len(ctx->initiatorCtx.chbindData);
+ chbind_config->nsid = CHBIND_NSID_RADIUS;
+ chbind_config->response_cb = &peerProcessChbindResponse;
+ chbind_config->ctx = ctx;
+ eapPeerConfig->chbind_config = chbind_config;
+ eapPeerConfig->chbind_config_len = 1;
+ } else {
+ eapPeerConfig->chbind_config = NULL;
+ eapPeerConfig->chbind_config_len = 0;
+ }
*minor = 0;
return GSS_S_COMPLETE;
}
gss_OID actualMech = GSS_C_NO_OID;
OM_uint32 gssFlags, timeRec;
- GSSEAP_ASSERT(cred != GSS_C_NO_CREDENTIAL);
-
+ /*
+ * Here we use the passed in credential handle because the resolved
+ * context credential does not currently have the reauth creds.
+ */
if (GSSEAP_SM_STATE(ctx) == GSSEAP_STATE_INITIAL) {
if (!gssEapCanReauthP(cred, target, timeReq))
return GSS_S_CONTINUE_NEEDED;
goto cleanup;
}
+ GSSEAP_ASSERT(cred != GSS_C_NO_CREDENTIAL);
+
major = gssEapMechToGlueName(minor, target, &mechTarget);
if (GSS_ERROR(major))
goto cleanup;
return GSS_S_FAILURE;
}
+ /*
+ * Generate channel binding data
+ */
+ if (ctx->initiatorCtx.chbindData == NULL)
+ {
+ major = peerInitEapChannelBinding(minor, ctx);
+ if (GSS_ERROR(major))
+ return major;
+ }
+
return GSS_S_CONTINUE_NEEDED;
}
goto cleanup;
}
}
- if (ret_flags != NULL)
- *ret_flags = ctx->gssFlags;
+ if (ret_flags != NULL) {
+ if ((major == GSS_S_COMPLETE) &&
+ (ctx->flags & CTX_FLAG_EAP_CHBIND_ACCEPT))
+ *ret_flags = ctx->gssFlags | GSS_C_MUTUAL_FLAG;
+ else
+ *ret_flags = ctx->gssFlags & (~GSS_C_MUTUAL_FLAG);
+ }
+ if (major == GSS_S_COMPLETE)
+ major = major;
if (time_rec != NULL)
gssEapContextTime(&tmpMinor, ctx, time_rec);
projects / mech_eap.git / blobdiff