2 * Copyright (c) 2010, JANET(UK)
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6 * modification, are permitted provided that the following conditions
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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->radConn != NULL)
91 rs_conn_destroy(ctx->radConn);
92 if (ctx->radHandle != NULL)
93 rs_context_destroy(ctx->radHandle);
94 if (ctx->radServer != NULL)
95 GSSEAP_FREE(ctx->radServer);
96 gss_release_buffer(&tmpMinor, &ctx->state);
98 gssEapRadiusFreeAvps(&tmpMinor, &ctx->vps);
102 gssEapReleaseContext(OM_uint32 *minor,
106 gss_ctx_id_t ctx = *pCtx;
107 krb5_context krbContext = NULL;
109 if (ctx == GSS_C_NO_CONTEXT) {
110 return GSS_S_COMPLETE;
113 gssEapKerberosInit(&tmpMinor, &krbContext);
115 #ifdef GSSEAP_ENABLE_REAUTH
116 if (ctx->flags & CTX_FLAG_KRB_REAUTH_GSS) {
117 gssDeleteSecContext(&tmpMinor, &ctx->kerberosCtx, GSS_C_NO_BUFFER);
120 if (CTX_IS_INITIATOR(ctx)) {
121 releaseInitiatorContext(&ctx->initiatorCtx);
123 releaseAcceptorContext(&ctx->acceptorCtx);
126 krb5_free_keyblock_contents(krbContext, &ctx->rfc3961Key);
127 gssEapReleaseName(&tmpMinor, &ctx->initiatorName);
128 gssEapReleaseName(&tmpMinor, &ctx->acceptorName);
129 gss_release_oid(&tmpMinor, &ctx->mechanismUsed);
130 sequenceFree(&tmpMinor, &ctx->seqState);
132 GSSEAP_MUTEX_DESTROY(&ctx->mutex);
134 memset(ctx, 0, sizeof(*ctx));
136 *pCtx = GSS_C_NO_CONTEXT;
139 return GSS_S_COMPLETE;
143 gssEapMakeToken(OM_uint32 *minor,
145 const gss_buffer_t innerToken,
146 enum gss_eap_token_type tokenType,
147 gss_buffer_t outputToken)
151 outputToken->length = tokenSize(ctx->mechanismUsed, innerToken->length);
152 outputToken->value = GSSEAP_MALLOC(outputToken->length);
153 if (outputToken->value == NULL) {
155 return GSS_S_FAILURE;
158 p = (unsigned char *)outputToken->value;
159 makeTokenHeader(ctx->mechanismUsed, innerToken->length, &p, tokenType);
160 memcpy(p, innerToken->value, innerToken->length);
163 return GSS_S_COMPLETE;
167 gssEapVerifyToken(OM_uint32 *minor,
169 const gss_buffer_t inputToken,
170 enum gss_eap_token_type *actualToken,
171 gss_buffer_t innerInputToken)
175 unsigned char *p = (unsigned char *)inputToken->value;
179 if (ctx->mechanismUsed != GSS_C_NO_OID) {
180 oid = ctx->mechanismUsed;
182 oidBuf.elements = NULL;
187 major = verifyTokenHeader(minor, oid, &bodySize, &p,
188 inputToken->length, actualToken);
189 if (GSS_ERROR(major))
192 if (ctx->mechanismUsed == GSS_C_NO_OID) {
193 if (!gssEapIsConcreteMechanismOid(oid)) {
194 *minor = GSSEAP_WRONG_MECH;
195 return GSS_S_BAD_MECH;
198 if (!gssEapInternalizeOid(oid, &ctx->mechanismUsed)) {
199 major = duplicateOid(minor, oid, &ctx->mechanismUsed);
200 if (GSS_ERROR(major))
205 innerInputToken->length = bodySize;
206 innerInputToken->value = p;
209 return GSS_S_COMPLETE;
213 gssEapContextTime(OM_uint32 *minor,
214 gss_ctx_id_t context_handle,
217 if (context_handle->expiryTime == 0) {
218 *time_rec = GSS_C_INDEFINITE;
220 time_t now, lifetime;
223 lifetime = context_handle->expiryTime - now;
226 return GSS_S_CONTEXT_EXPIRED;
228 *time_rec = lifetime;
231 return GSS_S_COMPLETE;