*/
#include "gssapiP_eap.h"
+#include "radius/radius.h"
+#include "util_radius.h"
+#include "utils/radius_utils.h"
+#include "openssl/err.h"
+#ifdef HAVE_MOONSHOT_GET_IDENTITY
+#include "libmoonshot.h"
+#endif
+
+/* methods allowed for phase1 authentication*/
+static const struct eap_method_type allowed_eap_method_types[] = {
+ {EAP_VENDOR_IETF, EAP_TYPE_TTLS},
+ {EAP_VENDOR_IETF, EAP_TYPE_NONE}};
static OM_uint32
policyVariableToFlag(enum eapol_bool_var variable)
case EAPOL_altReject:
flag = CTX_FLAG_EAP_ALT_REJECT;
break;
+ case EAPOL_eapTriggerStart:
+ flag = CTX_FLAG_EAP_TRIGGER_START;
+ break;
}
return flag;
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:
}
static const struct wpa_config_blob *
-peerGetConfigBlob(void *ctx GSSEAP_UNUSED,
- const char *name GSSEAP_UNUSED)
+peerGetConfigBlob(void *ctx,
+ const char *name)
{
- return NULL;
+ gss_ctx_id_t gssCtx = (gss_ctx_id_t)ctx;
+ size_t index;
+
+ if (strcmp(name, "client-cert") == 0)
+ index = CONFIG_BLOB_CLIENT_CERT;
+ else if (strcmp(name, "private-key") == 0)
+ index = CONFIG_BLOB_PRIVATE_KEY;
+ else if (strcmp(name, "ca-cert") == 0)
+ index = CONFIG_BLOB_CA_CERT;
+ else
+ return NULL;
+
+ return &gssCtx->initiatorCtx.configBlobs[index];
}
static void
{
}
+
static struct eapol_callbacks gssEapPolicyCallbacks = {
peerGetConfig,
peerGetBool,
peerSetConfigBlob,
peerGetConfigBlob,
peerNotifyPending,
+ NULL, /* eap_param_needed */
+ NULL /* eap_notify_cert */
};
-#ifdef GSSEAP_DEBUG
-extern int wpa_debug_level;
+
+#define CHBIND_SERVICE_NAME_FLAG 0x01
+#define CHBIND_HOST_NAME_FLAG 0x02
+#define CHBIND_SERVICE_SPECIFIC_FLAG 0x04
+#define CHBIND_REALM_NAME_FLAG 0x08
+
+static OM_uint32
+peerInitEapChannelBinding(OM_uint32 *minor, gss_ctx_id_t ctx)
+{
+ struct wpabuf *buf = NULL;
+ unsigned int chbindReqFlags = 0;
+ krb5_principal princ = NULL;
+ gss_buffer_desc nameBuf = GSS_C_EMPTY_BUFFER;
+ OM_uint32 major = GSS_S_COMPLETE;
+ krb5_context krbContext = NULL;
+
+ /* XXX is this check redundant? */
+ if (ctx->acceptorName == GSS_C_NO_NAME) {
+ major = GSS_S_BAD_NAME;
+ *minor = GSSEAP_NO_ACCEPTOR_NAME;
+ goto cleanup;
+ }
+
+ princ = ctx->acceptorName->krbPrincipal;
+
+ krbPrincComponentToGssBuffer(princ, 0, &nameBuf);
+ if (nameBuf.length > 0) {
+ major = gssEapRadiusAddAttr(minor, &buf, PW_GSS_ACCEPTOR_SERVICE_NAME,
+ 0, &nameBuf);
+ if (GSS_ERROR(major))
+ goto cleanup;
+
+ chbindReqFlags |= CHBIND_SERVICE_NAME_FLAG;
+ }
+
+ krbPrincComponentToGssBuffer(princ, 1, &nameBuf);
+ if (nameBuf.length > 0) {
+ major = gssEapRadiusAddAttr(minor, &buf, PW_GSS_ACCEPTOR_HOST_NAME,
+ 0, &nameBuf);
+ if (GSS_ERROR(major))
+ goto cleanup;
+
+ chbindReqFlags |= CHBIND_HOST_NAME_FLAG;
+ }
+
+ GSSEAP_KRB_INIT(&krbContext);
+
+ *minor = krbPrincUnparseServiceSpecifics(krbContext, princ, &nameBuf);
+ if (*minor != 0)
+ goto cleanup;
+
+ if (nameBuf.length > 0) {
+ major = gssEapRadiusAddAttr(minor, &buf,
+ PW_GSS_ACCEPTOR_SERVICE_SPECIFICS,
+ 0, &nameBuf);
+ if (GSS_ERROR(major))
+ goto cleanup;
+
+ chbindReqFlags |= CHBIND_SERVICE_SPECIFIC_FLAG;
+ }
+
+ krbFreeUnparsedName(krbContext, &nameBuf);
+ krbPrincRealmToGssBuffer(princ, &nameBuf);
+
+ if (nameBuf.length > 0) {
+ major = gssEapRadiusAddAttr(minor, &buf,
+ PW_GSS_ACCEPTOR_REALM_NAME,
+ 0, &nameBuf);
+ if (GSS_ERROR(major))
+ goto cleanup;
+
+ chbindReqFlags |= CHBIND_REALM_NAME_FLAG;
+ }
+
+ if (chbindReqFlags == 0) {
+ major = GSS_S_BAD_NAME;
+ *minor = GSSEAP_BAD_ACCEPTOR_NAME;
+ goto cleanup;
+ }
+
+ ctx->initiatorCtx.chbindData = buf;
+ ctx->initiatorCtx.chbindReqFlags = chbindReqFlags;
+
+ buf = NULL;
+
+ major = GSS_S_COMPLETE;
+ *minor = 0;
+
+cleanup:
+ /*namebuf is freed when used and may be left with a unowned pointer*/
+ wpabuf_free(buf);
+
+ return major;
+}
+
+static void
+peerProcessChbindResponse(void *context, int code, int nsid,
+ u8 *data, size_t len)
+{
+ radius_parser msg;
+ gss_ctx_id_t ctx = (gss_ctx_id_t )context;
+ void *vsadata;
+ u8 type;
+ u32 vendor_id;
+ u32 chbindRetFlags = 0;
+ size_t vsadata_len;
+
+ if (nsid != CHBIND_NSID_RADIUS)
+ return;
+
+ if (data == NULL)
+ return;
+ msg = radius_parser_start(data, len);
+ if (msg == NULL)
+ return;
+
+ while (radius_parser_parse_tlv(msg, &type, &vendor_id, &vsadata,
+ &vsadata_len) == 0) {
+ switch (type) {
+ case PW_GSS_ACCEPTOR_SERVICE_NAME:
+ chbindRetFlags |= CHBIND_SERVICE_NAME_FLAG;
+ break;
+ case PW_GSS_ACCEPTOR_HOST_NAME:
+ chbindRetFlags |= CHBIND_HOST_NAME_FLAG;
+ break;
+ case PW_GSS_ACCEPTOR_SERVICE_SPECIFICS:
+ chbindRetFlags |= CHBIND_SERVICE_SPECIFIC_FLAG;
+ break;
+ case PW_GSS_ACCEPTOR_REALM_NAME:
+ chbindRetFlags |= CHBIND_REALM_NAME_FLAG;
+ break;
+ }
+ }
+
+ radius_parser_finish(msg);
+
+ if (code == CHBIND_CODE_SUCCESS &&
+ ((chbindRetFlags & ctx->initiatorCtx.chbindReqFlags) == ctx->initiatorCtx.chbindReqFlags)) {
+ ctx->flags |= CTX_FLAG_EAP_CHBIND_ACCEPT;
+ ctx->gssFlags |= GSS_C_MUTUAL_FLAG;
+ } /* else log failures? */
+}
+
+#ifdef HAVE_MOONSHOT_GET_IDENTITY
+static int cert_to_byte_array(X509 *cert, unsigned char **bytes)
+{
+ unsigned char *buf;
+ unsigned char *p;
+
+ int len = i2d_X509(cert, NULL);
+ if (len <= 0) {
+ return -1;
+ }
+
+ p = buf = GSSEAP_MALLOC(len);
+ if (buf == NULL) {
+ return -1;
+ }
+
+ i2d_X509(cert, &buf);
+
+ *bytes = p;
+ return len;
+}
+
+static int sha256(unsigned char *bytes, int len, unsigned char *hash)
+{
+ EVP_MD_CTX ctx;
+ unsigned int hash_len;
+
+ EVP_MD_CTX_init(&ctx);
+ if (!EVP_DigestInit_ex(&ctx, EVP_sha256(), NULL)) {
+ printf("sha256(init_sec_context.c): EVP_DigestInit_ex failed: %s",
+ ERR_error_string(ERR_get_error(), NULL));
+ return -1;
+ }
+ if (!EVP_DigestUpdate(&ctx, bytes, len)) {
+ printf("sha256(init_sec_context.c): EVP_DigestUpdate failed: %s",
+ ERR_error_string(ERR_get_error(), NULL));
+ return -1;
+ }
+ if (!EVP_DigestFinal(&ctx, hash, &hash_len)) {
+ printf("sha256(init_sec_context.c): EVP_DigestFinal failed: %s",
+ ERR_error_string(ERR_get_error(), NULL));
+ return -1;
+ }
+
+ return hash_len;
+}
+
+static int peerValidateServerCert(int ok_so_far, X509* cert, void *ca_ctx)
+{
+ char *realm = NULL;
+ unsigned char *cert_bytes = NULL;
+ int cert_len;
+ unsigned char hash[32];
+ int hash_len;
+ MoonshotError *error = NULL;
+ struct eap_peer_config *eap_config = (struct eap_peer_config *) ca_ctx;
+ char *identity = strdup((const char *) eap_config->identity);
+
+ // Truncate the identity to just the username; make a separate string for the realm.
+ char* at = strchr(identity, '@');
+ if (at != NULL) {
+ realm = strdup(at + 1);
+ *at = '\0';
+ }
+
+ cert_len = cert_to_byte_array(cert, &cert_bytes);
+ hash_len = sha256(cert_bytes, cert_len, hash);
+ GSSEAP_FREE(cert_bytes);
+
+ if (hash_len != 32) {
+ fprintf(stderr, "peerValidateServerCert: Error: hash_len=%d, not 32!\n", hash_len);
+ return FALSE;
+ }
+
+ ok_so_far = moonshot_confirm_ca_certificate(identity, realm, hash, 32, &error);
+ free(identity);
+ if (realm != NULL) {
+ free(realm);
+ }
+
+ wpa_printf(MSG_INFO, "peerValidateServerCert: Returning %d\n", ok_so_far);
+ return ok_so_far;
+}
#endif
static OM_uint32
OM_uint32 major;
krb5_context krbContext;
struct eap_peer_config *eapPeerConfig = &ctx->initiatorCtx.eapPeerConfig;
+ struct wpa_config_blob *configBlobs = ctx->initiatorCtx.configBlobs;
gss_buffer_desc identity = GSS_C_EMPTY_BUFFER;
gss_buffer_desc realm = GSS_C_EMPTY_BUFFER;
gss_cred_id_t cred = ctx->cred;
eapPeerConfig->anonymous_identity_len = 0;
eapPeerConfig->password = NULL;
eapPeerConfig->password_len = 0;
+ eapPeerConfig->eap_methods = (struct eap_method_type *) allowed_eap_method_types;
- assert(cred != GSS_C_NO_CREDENTIAL);
+ GSSEAP_ASSERT(cred != GSS_C_NO_CREDENTIAL);
GSSEAP_KRB_INIT(&krbContext);
eapPeerConfig->fragment_size = 1024;
-#ifdef GSSEAP_DEBUG
- 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->anonymous_identity_len = 1 + realm.length;
/* password */
- eapPeerConfig->password = (unsigned char *)cred->password.value;
- eapPeerConfig->password_len = cred->password.length;
+ if ((cred->flags & CRED_FLAG_CERTIFICATE) == 0) {
+ eapPeerConfig->password = (unsigned char *)cred->password.value;
+ eapPeerConfig->password_len = cred->password.length;
+ }
/* certs */
eapPeerConfig->ca_cert = (unsigned char *)cred->caCertificate.value;
eapPeerConfig->subject_match = (unsigned char *)cred->subjectNameConstraint.value;
eapPeerConfig->altsubject_match = (unsigned char *)cred->subjectAltNameConstraint.value;
+ configBlobs[CONFIG_BLOB_CA_CERT].data = cred->caCertificateBlob.value;
+ configBlobs[CONFIG_BLOB_CA_CERT].len = cred->caCertificateBlob.length;
+
+ /* eap channel binding */
+ if (ctx->initiatorCtx.chbindData != NULL) {
+ 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;
+ }
+ if (cred->flags & CRED_FLAG_CERTIFICATE) {
+ /*
+ * CRED_FLAG_CONFIG_BLOB is an internal flag which will be used in the
+ * future to directly pass certificate and private key data to the
+ * EAP implementation, rather than an indirected string pointer.
+ */
+ if (cred->flags & CRED_FLAG_CONFIG_BLOB) {
+ eapPeerConfig->client_cert = (unsigned char *)"blob://client-cert";
+ configBlobs[CONFIG_BLOB_CLIENT_CERT].data = cred->clientCertificate.value;
+ configBlobs[CONFIG_BLOB_CLIENT_CERT].len = cred->clientCertificate.length;
+
+ eapPeerConfig->client_cert = (unsigned char *)"blob://private-key";
+ configBlobs[CONFIG_BLOB_PRIVATE_KEY].data = cred->clientCertificate.value;
+ configBlobs[CONFIG_BLOB_PRIVATE_KEY].len = cred->privateKey.length;
+ } else {
+ eapPeerConfig->client_cert = (unsigned char *)cred->clientCertificate.value;
+ eapPeerConfig->private_key = (unsigned char *)cred->privateKey.value;
+ }
+ eapPeerConfig->private_key_passwd = (char *)cred->password.value;
+ }
+
+#ifdef HAVE_MOONSHOT_GET_IDENTITY
+ eapPeerConfig->server_cert_cb = peerValidateServerCert;
+#endif
+ eapPeerConfig->server_cert_ctx = eapPeerConfig;
*minor = 0;
return GSS_S_COMPLETE;
* Mark an initiator context as ready for cryptographic operations
*/
static OM_uint32
-initReady(OM_uint32 *minor, gss_ctx_id_t ctx, OM_uint32 reqFlags)
+initReady(OM_uint32 *minor, gss_ctx_id_t ctx)
{
OM_uint32 major;
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))
static OM_uint32
initBegin(OM_uint32 *minor,
gss_ctx_id_t ctx,
- gss_name_t target,
+ gss_const_name_t target,
gss_OID mech,
OM_uint32 reqFlags GSSEAP_UNUSED,
OM_uint32 timeReq,
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;
return major;
if (target != GSS_C_NO_NAME) {
- GSSEAP_MUTEX_LOCK(&target->mutex);
+ GSSEAP_MUTEX_LOCK(&((gss_name_t)target)->mutex);
major = gssEapDuplicateName(minor, target, &ctx->acceptorName);
if (GSS_ERROR(major)) {
- GSSEAP_MUTEX_UNLOCK(&target->mutex);
+ GSSEAP_MUTEX_LOCK(&((gss_name_t)target)->mutex);
return major;
}
- GSSEAP_MUTEX_UNLOCK(&target->mutex);
+ GSSEAP_MUTEX_UNLOCK(&((gss_name_t)target)->mutex);
}
major = gssEapCanonicalizeOid(minor,
eapGssSmInitError(OM_uint32 *minor,
gss_cred_id_t cred GSSEAP_UNUSED,
gss_ctx_id_t ctx GSSEAP_UNUSED,
- gss_name_t target GSSEAP_UNUSED,
+ gss_const_name_t target GSSEAP_UNUSED,
gss_OID mech GSSEAP_UNUSED,
OM_uint32 reqFlags GSSEAP_UNUSED,
OM_uint32 timeReq GSSEAP_UNUSED,
p = (unsigned char *)inputToken->value;
major = load_uint32_be(&p[0]);
- *minor = ERROR_TABLE_BASE_eapg + load_uint32_be(&p[4]);
+ *minor = load_uint32_be(&p[4]);
+ if ((*minor >0) && (*minor < 128))
+ * minor += ERROR_TABLE_BASE_eapg;
+ else *minor = 0;
if (!GSS_ERROR(major) || !IS_WIRE_ERROR(*minor)) {
major = GSS_S_FAILURE;
*minor = GSSEAP_BAD_ERROR_TOKEN;
}
- assert(GSS_ERROR(major));
+ GSSEAP_ASSERT(GSS_ERROR(major));
return major;
}
eapGssSmInitGssReauth(OM_uint32 *minor,
gss_cred_id_t cred,
gss_ctx_id_t ctx,
- gss_name_t target,
+ gss_const_name_t target,
gss_OID mech GSSEAP_UNUSED,
OM_uint32 reqFlags,
OM_uint32 timeReq,
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))
eapGssSmInitVendorInfo(OM_uint32 *minor,
gss_cred_id_t cred GSSEAP_UNUSED,
gss_ctx_id_t ctx GSSEAP_UNUSED,
- gss_name_t target GSSEAP_UNUSED,
+ gss_const_name_t target GSSEAP_UNUSED,
gss_OID mech GSSEAP_UNUSED,
OM_uint32 reqFlags GSSEAP_UNUSED,
OM_uint32 timeReq GSSEAP_UNUSED,
eapGssSmInitAcceptorName(OM_uint32 *minor,
gss_cred_id_t cred GSSEAP_UNUSED,
gss_ctx_id_t ctx,
- gss_name_t target GSSEAP_UNUSED,
+ gss_const_name_t target GSSEAP_UNUSED,
gss_OID mech GSSEAP_UNUSED,
OM_uint32 reqFlags GSSEAP_UNUSED,
OM_uint32 timeReq GSSEAP_UNUSED,
outputToken, NULL);
if (GSS_ERROR(major))
return major;
- } else if (inputToken != GSS_C_NO_BUFFER &&
- ctx->acceptorName == GSS_C_NO_NAME) {
- /* Accept target name hint from acceptor */
+ } else if (inputToken != GSS_C_NO_BUFFER) {
+ OM_uint32 tmpMinor;
+ gss_name_t nameHint;
+ int equal;
+
+ /* Accept target name hint from acceptor or verify acceptor */
major = gssEapImportName(minor, inputToken,
GSS_C_NT_USER_NAME,
ctx->mechanismUsed,
- &ctx->acceptorName);
+ &nameHint);
if (GSS_ERROR(major))
return major;
+
+ if (ctx->acceptorName != GSS_C_NO_NAME) {
+ /* verify name hint matched asserted acceptor name */
+ major = gssEapCompareName(minor,
+ nameHint,
+ ctx->acceptorName,
+ COMPARE_NAME_FLAG_IGNORE_EMPTY_REALMS,
+ &equal);
+ if (GSS_ERROR(major)) {
+ gssEapReleaseName(&tmpMinor, &nameHint);
+ return major;
+ }
+
+ gssEapReleaseName(&tmpMinor, &nameHint);
+
+ if (!equal) {
+ *minor = GSSEAP_WRONG_ACCEPTOR_NAME;
+ return GSS_S_DEFECTIVE_TOKEN;
+ }
+ } else { /* acceptor name is no_name */
+ /* accept acceptor name hint */
+ ctx->acceptorName = nameHint;
+ nameHint = GSS_C_NO_NAME;
+ }
}
+
/*
* Currently, other parts of the code assume that the acceptor name
* is available, hence this check.
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;
}
eapGssSmInitIdentity(OM_uint32 *minor,
gss_cred_id_t cred GSSEAP_UNUSED,
gss_ctx_id_t ctx,
- gss_name_t target GSSEAP_UNUSED,
+ gss_const_name_t target GSSEAP_UNUSED,
gss_OID mech GSSEAP_UNUSED,
OM_uint32 reqFlags GSSEAP_UNUSED,
OM_uint32 timeReq GSSEAP_UNUSED,
OM_uint32 *smFlags)
{
struct eap_config eapConfig;
+ memset(&eapConfig, 0, sizeof(eapConfig));
+ eapConfig.cert_in_cb = 1;
#ifdef GSSEAP_ENABLE_REAUTH
if (GSSEAP_SM_STATE(ctx) == GSSEAP_STATE_REAUTHENTICATE) {
#endif
*smFlags |= SM_FLAG_FORCE_SEND_TOKEN;
- assert((ctx->flags & CTX_FLAG_KRB_REAUTH) == 0);
- assert(inputToken == GSS_C_NO_BUFFER);
-
- memset(&eapConfig, 0, sizeof(eapConfig));
+ GSSEAP_ASSERT((ctx->flags & CTX_FLAG_KRB_REAUTH) == 0);
+ GSSEAP_ASSERT(inputToken == GSS_C_NO_BUFFER);
ctx->initiatorCtx.eap = eap_peer_sm_init(ctx,
&gssEapPolicyCallbacks,
- ctx,
+ NULL, /* ctx?? */
&eapConfig);
if (ctx->initiatorCtx.eap == NULL) {
*minor = GSSEAP_PEER_SM_INIT_FAILURE;
eapGssSmInitAuthenticate(OM_uint32 *minor,
gss_cred_id_t cred GSSEAP_UNUSED,
gss_ctx_id_t ctx,
- gss_name_t target GSSEAP_UNUSED,
+ gss_const_name_t target GSSEAP_UNUSED,
gss_OID mech GSSEAP_UNUSED,
OM_uint32 reqFlags GSSEAP_UNUSED,
OM_uint32 timeReq GSSEAP_UNUSED,
*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 */
resp = eap_get_eapRespData(ctx->initiatorCtx.eap);
} else if (ctx->flags & CTX_FLAG_EAP_SUCCESS) {
- major = initReady(minor, ctx, reqFlags);
+ major = initReady(minor, ctx);
if (GSS_ERROR(major))
goto cleanup;
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);
eapGssSmInitGssFlags(OM_uint32 *minor,
gss_cred_id_t cred GSSEAP_UNUSED,
gss_ctx_id_t ctx,
- gss_name_t target GSSEAP_UNUSED,
+ gss_const_name_t target GSSEAP_UNUSED,
gss_OID mech GSSEAP_UNUSED,
OM_uint32 reqFlags GSSEAP_UNUSED,
OM_uint32 timeReq GSSEAP_UNUSED,
unsigned char wireFlags[4];
gss_buffer_desc flagsBuf;
+ /*
+ * As a temporary measure, force mutual authentication until channel binding is
+ * more widely deployed.
+ */
+ ctx->gssFlags |= GSS_C_MUTUAL_FLAG;
store_uint32_be(ctx->gssFlags & GSSEAP_WIRE_FLAGS_MASK, wireFlags);
flagsBuf.length = sizeof(wireFlags);
eapGssSmInitGssChannelBindings(OM_uint32 *minor,
gss_cred_id_t cred GSSEAP_UNUSED,
gss_ctx_id_t ctx,
- gss_name_t target GSSEAP_UNUSED,
+ gss_const_name_t target GSSEAP_UNUSED,
gss_OID mech GSSEAP_UNUSED,
OM_uint32 reqFlags GSSEAP_UNUSED,
OM_uint32 timeReq GSSEAP_UNUSED,
OM_uint32 *smFlags)
{
OM_uint32 major;
- gss_buffer_desc buffer = GSS_C_EMPTY_BUFFER;
+ krb5_error_code code;
+ krb5_context krbContext;
+ krb5_data data;
+ krb5_checksum cksum;
+ gss_buffer_desc cksumBuffer;
+#ifdef HAVE_HEIMDAL_VERSION
+ krb5_crypto krbCrypto;
+#endif
- if (chanBindings != GSS_C_NO_CHANNEL_BINDINGS)
- buffer = chanBindings->application_data;
+ if (chanBindings == GSS_C_NO_CHANNEL_BINDINGS ||
+ chanBindings->application_data.length == 0)
+ return GSS_S_CONTINUE_NEEDED;
- major = gssEapWrap(minor, ctx, TRUE, GSS_C_QOP_DEFAULT,
- &buffer, NULL, outputToken);
- if (GSS_ERROR(major))
- return major;
+ GSSEAP_KRB_INIT(&krbContext);
+
+ KRB_DATA_INIT(&data);
+
+ gssBufferToKrbData(&chanBindings->application_data, &data);
+
+#ifdef HAVE_HEIMDAL_VERSION
+ code = krb5_crypto_init(krbContext, &ctx->rfc3961Key, 0, &krbCrypto);
+ if (code != 0) {
+ *minor = code;
+ return GSS_S_FAILURE;
+ }
+
+ code = krb5_create_checksum(krbContext, krbCrypto,
+ KEY_USAGE_GSSEAP_CHBIND_MIC,
+ ctx->checksumType,
+ data.data, data.length,
+ &cksum);
+ krb5_crypto_destroy(krbContext, krbCrypto);
+#else
+ code = krb5_c_make_checksum(krbContext, ctx->checksumType,
+ &ctx->rfc3961Key,
+ KEY_USAGE_GSSEAP_CHBIND_MIC,
+ &data, &cksum);
+#endif /* HAVE_HEIMDAL_VERSION */
+ if (code != 0) {
+ *minor = code;
+ return GSS_S_FAILURE;
+ }
- assert(outputToken->value != NULL);
+ cksumBuffer.length = KRB_CHECKSUM_LENGTH(&cksum);
+ cksumBuffer.value = KRB_CHECKSUM_DATA(&cksum);
+
+ major = duplicateBuffer(minor, &cksumBuffer, outputToken);
+ if (GSS_ERROR(major)) {
+ KRB_CHECKSUM_FREE(krbContext, &cksum);
+ return major;
+ }
*minor = 0;
*smFlags |= SM_FLAG_OUTPUT_TOKEN_CRITICAL;
+ KRB_CHECKSUM_FREE(krbContext, &cksum);
+
return GSS_S_CONTINUE_NEEDED;
}
eapGssSmInitInitiatorMIC(OM_uint32 *minor,
gss_cred_id_t cred GSSEAP_UNUSED,
gss_ctx_id_t ctx,
- gss_name_t target GSSEAP_UNUSED,
+ gss_const_name_t target GSSEAP_UNUSED,
gss_OID mech GSSEAP_UNUSED,
OM_uint32 reqFlags GSSEAP_UNUSED,
OM_uint32 timeReq GSSEAP_UNUSED,
return GSS_S_CONTINUE_NEEDED;
}
-
+
#ifdef GSSEAP_ENABLE_REAUTH
static OM_uint32
eapGssSmInitReauthCreds(OM_uint32 *minor,
gss_cred_id_t cred,
gss_ctx_id_t ctx,
- gss_name_t target GSSEAP_UNUSED,
+ gss_const_name_t target GSSEAP_UNUSED,
gss_OID mech GSSEAP_UNUSED,
OM_uint32 reqFlags GSSEAP_UNUSED,
OM_uint32 timeReq GSSEAP_UNUSED,
eapGssSmInitAcceptorMIC(OM_uint32 *minor,
gss_cred_id_t cred GSSEAP_UNUSED,
gss_ctx_id_t ctx,
- gss_name_t target GSSEAP_UNUSED,
+ gss_const_name_t target GSSEAP_UNUSED,
gss_OID mech GSSEAP_UNUSED,
OM_uint32 reqFlags GSSEAP_UNUSED,
OM_uint32 timeReq GSSEAP_UNUSED,
{
ITOK_TYPE_ACCEPTOR_NAME_RESP,
ITOK_TYPE_ACCEPTOR_NAME_REQ,
- GSSEAP_STATE_INITIAL | GSSEAP_STATE_AUTHENTICATE,
+ GSSEAP_STATE_INITIAL | GSSEAP_STATE_AUTHENTICATE |
+ GSSEAP_STATE_ACCEPTOR_EXTS,
0,
eapGssSmInitAcceptorName
},
ITOK_TYPE_NONE,
ITOK_TYPE_GSS_CHANNEL_BINDINGS,
GSSEAP_STATE_INITIATOR_EXTS,
- SM_ITOK_FLAG_REQUIRED,
+ 0,
eapGssSmInitGssChannelBindings
},
{
};
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_name_t target_name,
+ gss_ctx_id_t ctx,
+ gss_const_name_t target_name,
gss_OID mech_type,
OM_uint32 req_flags,
OM_uint32 time_req,
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 (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,
+#ifdef HAVE_HEIMDAL_VERSION
+ gss_const_cred_id_t cred,
+#else
+ gss_cred_id_t cred,
+#endif
+ gss_ctx_id_t *context_handle,
+#ifdef HAVE_HEIMDAL_VERSION
+ gss_const_name_t target_name,
+#else
+ gss_name_t target_name,
+#endif
+ 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,
+ (gss_cred_id_t)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))
gssEapReleaseContext(&tmpMinor, context_handle);
+ gssEapTraceStatus("gss_init_sec_context", major, *minor);
+
return major;
}
+