2 * Copyright (c) 2010, JANET(UK)
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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_AUTHENTICATE;
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 eap_gss_initiator_ctx *ctx)
79 eap_peer_sm_deinit(ctx->eap);
83 releaseAcceptorContext(struct eap_gss_acceptor_ctx *ctx)
86 eap_server_sm_deinit(ctx->eap);
87 if (ctx->tlsContext != NULL)
88 tls_deinit(ctx->tlsContext);
93 gssEapReleaseContext(OM_uint32 *minor,
97 gss_ctx_id_t ctx = *pCtx;
98 krb5_context krbContext = NULL;
100 if (ctx == GSS_C_NO_CONTEXT) {
101 return GSS_S_COMPLETE;
104 gssEapKerberosInit(&tmpMinor, &krbContext);
106 if (CTX_IS_INITIATOR(ctx)) {
107 releaseInitiatorContext(&ctx->initiatorCtx);
109 releaseAcceptorContext(&ctx->acceptorCtx);
112 krb5_free_keyblock_contents(krbContext, &ctx->rfc3961Key);
113 gssEapReleaseName(&tmpMinor, &ctx->initiatorName);
114 gssEapReleaseName(&tmpMinor, &ctx->acceptorName);
115 gss_release_oid(&tmpMinor, &ctx->mechanismUsed);
116 sequenceFree(&tmpMinor, &ctx->seqState);
118 GSSEAP_MUTEX_DESTROY(&ctx->mutex);
120 memset(ctx, 0, sizeof(*ctx));
122 *pCtx = GSS_C_NO_CONTEXT;
125 return GSS_S_COMPLETE;
129 gssEapMakeToken(OM_uint32 *minor,
131 const gss_buffer_t innerToken,
132 enum gss_eap_token_type tokenType,
133 gss_buffer_t outputToken)
137 outputToken->length = tokenSize(ctx->mechanismUsed, innerToken->length);
138 outputToken->value = GSSEAP_MALLOC(outputToken->length);
139 if (outputToken->value == NULL) {
141 return GSS_S_FAILURE;
144 p = (unsigned char *)outputToken->value;
145 makeTokenHeader(ctx->mechanismUsed, innerToken->length, &p, tokenType);
146 memcpy(p, innerToken->value, innerToken->length);
149 return GSS_S_COMPLETE;
153 gssEapVerifyToken(OM_uint32 *minor,
155 const gss_buffer_t inputToken,
156 enum gss_eap_token_type tokenType,
157 gss_buffer_t innerInputToken)
161 unsigned char *p = (unsigned char *)inputToken->value;
165 if (ctx->mechanismUsed != GSS_C_NO_OID) {
166 oid = ctx->mechanismUsed;
168 oidBuf.elements = NULL;
173 major = verifyTokenHeader(minor, oid, &bodySize, &p,
174 inputToken->length, tokenType);
175 if (GSS_ERROR(major))
176 return GSS_S_DEFECTIVE_TOKEN;
178 if (ctx->mechanismUsed == GSS_C_NO_OID) {
179 if (!gssEapIsConcreteMechanismOid(oid))
180 return GSS_S_BAD_MECH;
182 if (!gssEapInternalizeOid(oid, &ctx->mechanismUsed)) {
183 major = duplicateOid(minor, oid, &ctx->mechanismUsed);
184 if (GSS_ERROR(major))
189 innerInputToken->length = bodySize;
190 innerInputToken->value = p;
193 return GSS_S_COMPLETE;