*/
#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)
if (ctx == GSS_C_NO_CONTEXT)
return FALSE;
- assert(CTX_IS_INITIATOR(ctx));
+ GSSEAP_ASSERT(CTX_IS_INITIATOR(ctx));
switch (variable) {
case EAPOL_idleWhile:
if (ctx == GSS_C_NO_CONTEXT)
return;
- assert(CTX_IS_INITIATOR(ctx));
+ GSSEAP_ASSERT(CTX_IS_INITIATOR(ctx));
switch (variable) {
case EAPOL_idleWhile:
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;
+ ctx->gssFlags |= GSS_C_MUTUAL_FLAG;
+ /* Accepted! */
+ } else {
+ /* log failures? */
+ }
+}
+
static OM_uint32
peerConfigInit(OM_uint32 *minor, gss_ctx_id_t ctx)
{
eapPeerConfig->password = NULL;
eapPeerConfig->password_len = 0;
- assert(cred != GSS_C_NO_CREDENTIAL);
+ GSSEAP_ASSERT(cred != GSS_C_NO_CREDENTIAL);
GSSEAP_KRB_INIT(&krbContext);
wpa_debug_level = 0;
#endif
- assert(cred->name != GSS_C_NO_NAME);
+ GSSEAP_ASSERT(cred->name != GSS_C_NO_NAME);
if ((cred->name->flags & (NAME_FLAG_NAI | NAME_FLAG_SERVICE)) == 0) {
*minor = GSSEAP_BAD_INITIATOR_NAME;
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;
}
const unsigned char *key;
size_t keyLength;
-#if 1
- /* XXX actually check for mutual auth */
- if (reqFlags & GSS_C_MUTUAL_FLAG)
- ctx->gssFlags |= GSS_C_MUTUAL_FLAG;
-#endif
-
/* Cache encryption type derived from selected mechanism OID */
major = gssEapOidToEnctype(minor, ctx->mechanismUsed, &ctx->encryptionType);
if (GSS_ERROR(major))
OM_uint32 major;
gss_cred_id_t cred = ctx->cred;
- assert(cred != GSS_C_NO_CREDENTIAL);
+ GSSEAP_ASSERT(cred != GSS_C_NO_CREDENTIAL);
if (cred->expiryTime)
ctx->expiryTime = cred->expiryTime;
*minor = GSSEAP_BAD_ERROR_TOKEN;
}
- assert(GSS_ERROR(major));
+ GSSEAP_ASSERT(GSS_ERROR(major));
return major;
}
gss_OID actualMech = GSS_C_NO_OID;
OM_uint32 gssFlags, timeRec;
- 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;
ctx->gssFlags = gssFlags;
if (major == GSS_S_COMPLETE) {
- assert(GSSEAP_SM_STATE(ctx) == GSSEAP_STATE_REAUTHENTICATE);
+ GSSEAP_ASSERT(GSSEAP_SM_STATE(ctx) == GSSEAP_STATE_REAUTHENTICATE);
major = gssEapReauthComplete(minor, ctx, cred, actualMech, timeRec);
if (GSS_ERROR(major))
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;
}
#endif
*smFlags |= SM_FLAG_FORCE_SEND_TOKEN;
- assert((ctx->flags & CTX_FLAG_KRB_REAUTH) == 0);
- assert(inputToken == GSS_C_NO_BUFFER);
+ GSSEAP_ASSERT((ctx->flags & CTX_FLAG_KRB_REAUTH) == 0);
+ GSSEAP_ASSERT(inputToken == GSS_C_NO_BUFFER);
memset(&eapConfig, 0, sizeof(eapConfig));
*minor = 0;
- assert(inputToken != GSS_C_NO_BUFFER);
+ GSSEAP_ASSERT(inputToken != GSS_C_NO_BUFFER);
major = peerConfigInit(minor, ctx);
if (GSS_ERROR(major))
goto cleanup;
- assert(ctx->initiatorCtx.eap != NULL);
- assert(ctx->flags & CTX_FLAG_EAP_PORT_ENABLED);
+ GSSEAP_ASSERT(ctx->initiatorCtx.eap != NULL);
+ GSSEAP_ASSERT(ctx->flags & CTX_FLAG_EAP_PORT_ENABLED);
ctx->flags |= CTX_FLAG_EAP_REQ; /* we have a Request from the acceptor */
OM_uint32 tmpMajor;
gss_buffer_desc respBuf;
- assert(major == GSS_S_CONTINUE_NEEDED);
+ GSSEAP_ASSERT(major == GSS_S_CONTINUE_NEEDED);
respBuf.length = wpabuf_len(resp);
respBuf.value = (void *)wpabuf_head(resp);
if (GSS_ERROR(major))
return major;
- assert(outputToken->value != NULL);
+ GSSEAP_ASSERT(outputToken->value != NULL);
*minor = 0;
*smFlags |= SM_FLAG_OUTPUT_TOKEN_CRITICAL;
};
OM_uint32
-gss_init_sec_context(OM_uint32 *minor,
+gssEapInitSecContext(OM_uint32 *minor,
gss_cred_id_t cred,
- gss_ctx_id_t *context_handle,
+ gss_ctx_id_t ctx,
gss_name_t target_name,
gss_OID mech_type,
OM_uint32 req_flags,
OM_uint32 *time_rec)
{
OM_uint32 major, tmpMinor;
- gss_ctx_id_t ctx = *context_handle;
- int initialContextToken = 0;
-
- *minor = 0;
-
- output_token->length = 0;
- output_token->value = NULL;
-
- if (ctx == GSS_C_NO_CONTEXT) {
- if (input_token != GSS_C_NO_BUFFER && input_token->length != 0) {
- *minor = GSSEAP_WRONG_SIZE;
- return GSS_S_DEFECTIVE_TOKEN;
- }
-
- major = gssEapAllocContext(minor, &ctx);
- if (GSS_ERROR(major))
- return major;
-
- ctx->flags |= CTX_FLAG_INITIATOR;
- initialContextToken = 1;
-
- *context_handle = ctx;
- }
-
- GSSEAP_MUTEX_LOCK(&ctx->mutex);
+ int initialContextToken = (ctx->mechanismUsed == GSS_C_NO_OID);
+ /*
+ * XXX is acquiring the credential lock here necessary? The password is
+ * mutable but the contract could specify that this is not updated whilst
+ * a context is being initialized.
+ */
if (cred != GSS_C_NO_CREDENTIAL)
GSSEAP_MUTEX_LOCK(&cred->mutex);
if (GSS_ERROR(major))
goto cleanup;
- assert(ctx->cred != GSS_C_NO_CREDENTIAL);
+ GSSEAP_ASSERT(ctx->cred != GSS_C_NO_CREDENTIAL);
}
GSSEAP_MUTEX_LOCK(&ctx->cred->mutex);
- assert(ctx->cred->flags & CRED_FLAG_RESOLVED);
- assert(ctx->cred->flags & CRED_FLAG_INITIATE);
+ GSSEAP_ASSERT(ctx->cred->flags & CRED_FLAG_RESOLVED);
+ GSSEAP_ASSERT(ctx->cred->flags & CRED_FLAG_INITIATE);
if (initialContextToken) {
major = initBegin(minor, ctx, target_name, mech_type,
goto cleanup;
}
}
+
if (ret_flags != NULL)
*ret_flags = ctx->gssFlags;
+
+ if (major == GSS_S_COMPLETE)
+ major = major;
if (time_rec != NULL)
gssEapContextTime(&tmpMinor, ctx, time_rec);
- assert(CTX_IS_ESTABLISHED(ctx) || major == GSS_S_CONTINUE_NEEDED);
+ GSSEAP_ASSERT(CTX_IS_ESTABLISHED(ctx) || major == GSS_S_CONTINUE_NEEDED);
cleanup:
if (cred != GSS_C_NO_CREDENTIAL)
GSSEAP_MUTEX_UNLOCK(&cred->mutex);
if (ctx->cred != GSS_C_NO_CREDENTIAL)
GSSEAP_MUTEX_UNLOCK(&ctx->cred->mutex);
+
+ return major;
+}
+
+OM_uint32 GSSAPI_CALLCONV
+gss_init_sec_context(OM_uint32 *minor,
+ gss_cred_id_t cred,
+ gss_ctx_id_t *context_handle,
+ gss_name_t target_name,
+ gss_OID mech_type,
+ OM_uint32 req_flags,
+ OM_uint32 time_req,
+ gss_channel_bindings_t input_chan_bindings,
+ gss_buffer_t input_token,
+ gss_OID *actual_mech_type,
+ gss_buffer_t output_token,
+ OM_uint32 *ret_flags,
+ OM_uint32 *time_rec)
+{
+ OM_uint32 major, tmpMinor;
+ gss_ctx_id_t ctx = *context_handle;
+
+ *minor = 0;
+
+ output_token->length = 0;
+ output_token->value = NULL;
+
+ if (ctx == GSS_C_NO_CONTEXT) {
+ if (input_token != GSS_C_NO_BUFFER && input_token->length != 0) {
+ *minor = GSSEAP_WRONG_SIZE;
+ return GSS_S_DEFECTIVE_TOKEN;
+ }
+
+ major = gssEapAllocContext(minor, &ctx);
+ if (GSS_ERROR(major))
+ return major;
+
+ ctx->flags |= CTX_FLAG_INITIATOR;
+
+ *context_handle = ctx;
+ }
+
+ GSSEAP_MUTEX_LOCK(&ctx->mutex);
+
+ major = gssEapInitSecContext(minor,
+ cred,
+ ctx,
+ target_name,
+ mech_type,
+ req_flags,
+ time_req,
+ input_chan_bindings,
+ input_token,
+ actual_mech_type,
+ output_token,
+ ret_flags,
+ time_rec);
+
GSSEAP_MUTEX_UNLOCK(&ctx->mutex);
if (GSS_ERROR(major))
projects / mech_eap.git / blobdiff