2 * Copyright (c) 2010, JANET(UK)
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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17 * may be used to endorse or promote products derived from this software
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33 #include "gssapiP_eap.h"
36 gssEapAllocContext(OM_uint32 *minor,
42 assert(*pCtx == GSS_C_NO_CONTEXT);
44 ctx = (gss_ctx_id_t)GSSEAP_CALLOC(1, sizeof(*ctx));
50 if (GSSEAP_MUTEX_INIT(&ctx->mutex) != 0) {
52 gssEapReleaseContext(&tmpMinor, &ctx);
56 ctx->state = EAP_STATE_IDENTITY;
59 * Integrity, confidentiality, sequencing and replay detection are
60 * always available. Regardless of what flags are requested in
61 * GSS_Init_sec_context, implementations MUST set the flag corresponding
62 * to these services in the output of GSS_Init_sec_context and
63 * GSS_Accept_sec_context.
65 ctx->gssFlags = GSS_C_TRANS_FLAG | /* exporting contexts */
66 GSS_C_INTEG_FLAG | /* integrity */
67 GSS_C_CONF_FLAG | /* confidentiality */
68 GSS_C_SEQUENCE_FLAG | /* sequencing */
69 GSS_C_REPLAY_FLAG; /* replay detection */
73 return GSS_S_COMPLETE;
77 releaseInitiatorContext(struct gss_eap_initiator_ctx *ctx)
81 gssEapReleaseCred(&minor, &ctx->defaultCred);
82 eap_peer_sm_deinit(ctx->eap);
86 releaseAcceptorContext(struct gss_eap_acceptor_ctx *ctx)
90 if (ctx->avps != NULL)
91 rc_avpair_free(ctx->avps);
92 if (ctx->radHandle != NULL)
93 rc_config_free(ctx->radHandle);
95 gss_release_buffer(&tmpMinor, &ctx->state);
96 if (ctx->radServer != NULL)
97 GSSEAP_FREE(ctx->radServer);
101 gssEapReleaseContext(OM_uint32 *minor,
105 gss_ctx_id_t ctx = *pCtx;
106 krb5_context krbContext = NULL;
108 if (ctx == GSS_C_NO_CONTEXT) {
109 return GSS_S_COMPLETE;
112 gssEapKerberosInit(&tmpMinor, &krbContext);
114 #ifdef GSSEAP_ENABLE_REAUTH
115 if (ctx->flags & CTX_FLAG_KRB_REAUTH_GSS) {
116 gssDeleteSecContext(&tmpMinor, &ctx->kerberosCtx, GSS_C_NO_BUFFER);
119 if (CTX_IS_INITIATOR(ctx)) {
120 releaseInitiatorContext(&ctx->initiatorCtx);
122 releaseAcceptorContext(&ctx->acceptorCtx);
125 krb5_free_keyblock_contents(krbContext, &ctx->rfc3961Key);
126 gssEapReleaseName(&tmpMinor, &ctx->initiatorName);
127 gssEapReleaseName(&tmpMinor, &ctx->acceptorName);
128 gss_release_oid(&tmpMinor, &ctx->mechanismUsed);
129 sequenceFree(&tmpMinor, &ctx->seqState);
131 GSSEAP_MUTEX_DESTROY(&ctx->mutex);
133 memset(ctx, 0, sizeof(*ctx));
135 *pCtx = GSS_C_NO_CONTEXT;
138 return GSS_S_COMPLETE;
142 gssEapMakeToken(OM_uint32 *minor,
144 const gss_buffer_t innerToken,
145 enum gss_eap_token_type tokenType,
146 gss_buffer_t outputToken)
150 outputToken->length = tokenSize(ctx->mechanismUsed, innerToken->length);
151 outputToken->value = GSSEAP_MALLOC(outputToken->length);
152 if (outputToken->value == NULL) {
154 return GSS_S_FAILURE;
157 p = (unsigned char *)outputToken->value;
158 makeTokenHeader(ctx->mechanismUsed, innerToken->length, &p, tokenType);
159 memcpy(p, innerToken->value, innerToken->length);
162 return GSS_S_COMPLETE;
166 gssEapVerifyToken(OM_uint32 *minor,
168 const gss_buffer_t inputToken,
169 enum gss_eap_token_type *actualToken,
170 gss_buffer_t innerInputToken)
174 unsigned char *p = (unsigned char *)inputToken->value;
178 if (ctx->mechanismUsed != GSS_C_NO_OID) {
179 oid = ctx->mechanismUsed;
181 oidBuf.elements = NULL;
186 major = verifyTokenHeader(minor, oid, &bodySize, &p,
187 inputToken->length, actualToken);
188 if (GSS_ERROR(major))
191 if (ctx->mechanismUsed == GSS_C_NO_OID) {
192 if (!gssEapIsConcreteMechanismOid(oid))
193 return GSS_S_BAD_MECH;
195 if (!gssEapInternalizeOid(oid, &ctx->mechanismUsed)) {
196 major = duplicateOid(minor, oid, &ctx->mechanismUsed);
197 if (GSS_ERROR(major))
202 innerInputToken->length = bodySize;
203 innerInputToken->value = p;
206 return GSS_S_COMPLETE;
210 gssEapContextTime(OM_uint32 *minor,
211 gss_ctx_id_t context_handle,
214 if (context_handle->expiryTime == 0) {
215 *time_rec = GSS_C_INDEFINITE;
217 time_t now, lifetime;
220 lifetime = context_handle->expiryTime - now;
223 return GSS_S_CONTEXT_EXPIRED;
225 *time_rec = lifetime;
228 return GSS_S_COMPLETE;