2 * Copyright (c) 2010, JANET(UK)
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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)
79 eap_peer_sm_deinit(ctx->eap);
83 releaseAcceptorContext(struct gss_eap_acceptor_ctx *ctx)
87 if (ctx->avps != NULL)
88 rc_avpair_free(ctx->avps);
89 if (ctx->radHandle != NULL)
90 rc_config_free(ctx->radHandle);
92 gss_release_buffer(&tmpMinor, &ctx->state);
96 gssEapReleaseContext(OM_uint32 *minor,
100 gss_ctx_id_t ctx = *pCtx;
101 krb5_context krbContext = NULL;
103 if (ctx == GSS_C_NO_CONTEXT) {
104 return GSS_S_COMPLETE;
107 gssEapKerberosInit(&tmpMinor, &krbContext);
109 if (ctx->flags & CTX_FLAG_KRB_REAUTH_GSS) {
110 gssDeleteSecContext(&tmpMinor, &ctx->kerberosCtx, GSS_C_NO_BUFFER);
111 } else if (CTX_IS_INITIATOR(ctx)) {
112 releaseInitiatorContext(&ctx->initiatorCtx);
114 releaseAcceptorContext(&ctx->acceptorCtx);
117 krb5_free_keyblock_contents(krbContext, &ctx->rfc3961Key);
118 gssEapReleaseName(&tmpMinor, &ctx->initiatorName);
119 gssEapReleaseName(&tmpMinor, &ctx->acceptorName);
120 gss_release_oid(&tmpMinor, &ctx->mechanismUsed);
121 sequenceFree(&tmpMinor, &ctx->seqState);
123 GSSEAP_MUTEX_DESTROY(&ctx->mutex);
125 memset(ctx, 0, sizeof(*ctx));
127 *pCtx = GSS_C_NO_CONTEXT;
130 return GSS_S_COMPLETE;
134 gssEapMakeToken(OM_uint32 *minor,
136 const gss_buffer_t innerToken,
137 enum gss_eap_token_type tokenType,
138 gss_buffer_t outputToken)
142 outputToken->length = tokenSize(ctx->mechanismUsed, innerToken->length);
143 outputToken->value = GSSEAP_MALLOC(outputToken->length);
144 if (outputToken->value == NULL) {
146 return GSS_S_FAILURE;
149 p = (unsigned char *)outputToken->value;
150 makeTokenHeader(ctx->mechanismUsed, innerToken->length, &p, tokenType);
151 memcpy(p, innerToken->value, innerToken->length);
154 return GSS_S_COMPLETE;
158 gssEapVerifyToken(OM_uint32 *minor,
160 const gss_buffer_t inputToken,
161 enum gss_eap_token_type *actualToken,
162 gss_buffer_t innerInputToken)
166 unsigned char *p = (unsigned char *)inputToken->value;
170 if (ctx->mechanismUsed != GSS_C_NO_OID) {
171 oid = ctx->mechanismUsed;
173 oidBuf.elements = NULL;
178 major = verifyTokenHeader(minor, oid, &bodySize, &p,
179 inputToken->length, actualToken);
180 if (GSS_ERROR(major))
183 if (ctx->mechanismUsed == GSS_C_NO_OID) {
184 if (!gssEapIsConcreteMechanismOid(oid))
185 return GSS_S_BAD_MECH;
187 if (!gssEapInternalizeOid(oid, &ctx->mechanismUsed)) {
188 major = duplicateOid(minor, oid, &ctx->mechanismUsed);
189 if (GSS_ERROR(major))
194 innerInputToken->length = bodySize;
195 innerInputToken->value = p;
198 return GSS_S_COMPLETE;
202 gssEapContextTime(OM_uint32 *minor,
203 gss_ctx_id_t context_handle,
206 if (context_handle == GSS_C_NO_CONTEXT) {
207 return GSS_S_NO_CONTEXT;
210 if (!CTX_IS_ESTABLISHED(context_handle)) {
211 return GSS_S_NO_CONTEXT;
216 if (context_handle->expiryTime == 0) {
217 *time_rec = GSS_C_INDEFINITE;
219 time_t now, lifetime;
222 lifetime = context_handle->expiryTime - now;
225 return GSS_S_CONTEXT_EXPIRED;
227 *time_rec = lifetime;
230 return GSS_S_COMPLETE;