2 * Copyright (c) 2011, JANET(UK)
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29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * Utility routines for context handles.
37 #include "gssapiP_eap.h"
40 gssEapAllocContext(OM_uint32 *minor,
46 assert(*pCtx == GSS_C_NO_CONTEXT);
48 ctx = (gss_ctx_id_t)GSSEAP_CALLOC(1, sizeof(*ctx));
54 if (GSSEAP_MUTEX_INIT(&ctx->mutex) != 0) {
56 gssEapReleaseContext(&tmpMinor, &ctx);
60 ctx->state = GSSEAP_STATE_INITIAL;
63 * Integrity, confidentiality, sequencing and replay detection are
64 * always available. Regardless of what flags are requested in
65 * GSS_Init_sec_context, implementations MUST set the flag corresponding
66 * to these services in the output of GSS_Init_sec_context and
67 * GSS_Accept_sec_context.
69 ctx->gssFlags = GSS_C_TRANS_FLAG | /* exporting contexts */
70 GSS_C_INTEG_FLAG | /* integrity */
71 GSS_C_CONF_FLAG | /* confidentiality */
72 GSS_C_SEQUENCE_FLAG | /* sequencing */
73 GSS_C_REPLAY_FLAG| /* replay detection */
74 GSS_C_MUTUAL_FLAG; /*xxx big hack */
78 return GSS_S_COMPLETE;
82 releaseInitiatorContext(struct gss_eap_initiator_ctx *ctx)
84 eap_peer_sm_deinit(ctx->eap);
88 releaseAcceptorContext(struct gss_eap_acceptor_ctx *ctx)
92 if (ctx->radConn != NULL)
93 rs_conn_destroy(ctx->radConn);
94 if (ctx->radContext != NULL)
95 rs_context_destroy(ctx->radContext);
96 if (ctx->radServer != NULL)
97 GSSEAP_FREE(ctx->radServer);
98 gss_release_buffer(&tmpMinor, &ctx->state);
100 gssEapRadiusFreeAvps(&tmpMinor, &ctx->vps);
104 gssEapReleaseContext(OM_uint32 *minor,
108 gss_ctx_id_t ctx = *pCtx;
109 krb5_context krbContext = NULL;
111 if (ctx == GSS_C_NO_CONTEXT) {
112 return GSS_S_COMPLETE;
115 gssEapKerberosInit(&tmpMinor, &krbContext);
117 #ifdef GSSEAP_ENABLE_REAUTH
118 if (ctx->flags & CTX_FLAG_KRB_REAUTH) {
119 gssDeleteSecContext(&tmpMinor, &ctx->reauthCtx, GSS_C_NO_BUFFER);
122 if (CTX_IS_INITIATOR(ctx)) {
123 releaseInitiatorContext(&ctx->initiatorCtx);
125 releaseAcceptorContext(&ctx->acceptorCtx);
128 krb5_free_keyblock_contents(krbContext, &ctx->rfc3961Key);
129 gssEapReleaseName(&tmpMinor, &ctx->initiatorName);
130 gssEapReleaseName(&tmpMinor, &ctx->acceptorName);
131 gssEapReleaseOid(&tmpMinor, &ctx->mechanismUsed);
132 sequenceFree(&tmpMinor, &ctx->seqState);
133 gssEapReleaseCred(&tmpMinor, &ctx->defaultCred);
135 GSSEAP_MUTEX_DESTROY(&ctx->mutex);
137 memset(ctx, 0, sizeof(*ctx));
139 *pCtx = GSS_C_NO_CONTEXT;
142 return GSS_S_COMPLETE;
146 gssEapMakeToken(OM_uint32 *minor,
148 const gss_buffer_t innerToken,
149 enum gss_eap_token_type tokenType,
150 gss_buffer_t outputToken)
154 outputToken->length = tokenSize(ctx->mechanismUsed, innerToken->length);
155 outputToken->value = GSSEAP_MALLOC(outputToken->length);
156 if (outputToken->value == NULL) {
158 return GSS_S_FAILURE;
161 p = (unsigned char *)outputToken->value;
162 makeTokenHeader(ctx->mechanismUsed, innerToken->length, &p, tokenType);
163 memcpy(p, innerToken->value, innerToken->length);
166 return GSS_S_COMPLETE;
170 gssEapVerifyToken(OM_uint32 *minor,
172 const gss_buffer_t inputToken,
173 enum gss_eap_token_type *actualToken,
174 gss_buffer_t innerInputToken)
178 unsigned char *p = (unsigned char *)inputToken->value;
182 if (ctx->mechanismUsed != GSS_C_NO_OID) {
183 oid = ctx->mechanismUsed;
185 oidBuf.elements = NULL;
190 major = verifyTokenHeader(minor, oid, &bodySize, &p,
191 inputToken->length, actualToken);
192 if (GSS_ERROR(major))
195 if (ctx->mechanismUsed == GSS_C_NO_OID) {
196 major = gssEapCanonicalizeOid(minor, oid, 0, &ctx->mechanismUsed);
197 if (GSS_ERROR(major))
201 innerInputToken->length = bodySize;
202 innerInputToken->value = p;
205 return GSS_S_COMPLETE;
209 gssEapContextTime(OM_uint32 *minor,
210 gss_ctx_id_t context_handle,
215 if (context_handle->expiryTime == 0) {
216 *time_rec = GSS_C_INDEFINITE;
218 time_t now, lifetime;
221 lifetime = context_handle->expiryTime - now;
224 return GSS_S_CONTEXT_EXPIRED;
226 *time_rec = lifetime;
229 return GSS_S_COMPLETE;