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33 #include "gssapiP_eap.h"
36 gssEapExportPartialContext(OM_uint32 *minor,
40 /* XXX we also need to serialise the current server name */
41 return duplicateBuffer(minor, &ctx->acceptorCtx.state, token);
45 gssEapExportSecContext(OM_uint32 *minor,
49 OM_uint32 major, tmpMinor;
51 gss_buffer_desc initiatorName = GSS_C_EMPTY_BUFFER;
52 gss_buffer_desc acceptorName = GSS_C_EMPTY_BUFFER;
53 gss_buffer_desc partialCtx = GSS_C_EMPTY_BUFFER;
57 if ((CTX_IS_INITIATOR(ctx) && !CTX_IS_ESTABLISHED(ctx)) ||
58 ctx->mechanismUsed == GSS_C_NO_OID)
59 return GSS_S_NO_CONTEXT;
61 key.length = KRB_KEY_LENGTH(&ctx->rfc3961Key);
62 key.value = KRB_KEY_DATA(&ctx->rfc3961Key);
64 if (ctx->initiatorName != GSS_C_NO_NAME) {
65 major = gssEapExportNameInternal(minor, ctx->initiatorName,
67 EXPORT_NAME_FLAG_COMPOSITE);
71 if (ctx->acceptorName != GSS_C_NO_NAME) {
72 major = gssEapExportNameInternal(minor, ctx->acceptorName,
74 EXPORT_NAME_FLAG_COMPOSITE);
80 * The partial context is only transmitted for unestablished acceptor
83 if (!CTX_IS_INITIATOR(ctx) && !CTX_IS_ESTABLISHED(ctx)) {
84 assert((ctx->flags & CTX_FLAG_KRB_REAUTH_GSS) == 0);
86 major = gssEapExportPartialContext(minor, ctx, &partialCtx);
91 length = 16; /* version, state, flags, */
92 length += 4 + ctx->mechanismUsed->length; /* mechanismUsed */
93 length += 12 + key.length; /* rfc3961Key.value */
94 length += 4 + initiatorName.length; /* initiatorName.value */
95 length += 4 + acceptorName.length; /* acceptorName.value */
96 length += 24 + sequenceSize(ctx->seqState); /* seqState */
98 if (partialCtx.value != NULL)
99 length += 4 + partialCtx.length; /* partialCtx.value */
101 token->value = GSSEAP_MALLOC(length);
102 if (token->value == NULL) {
104 major = GSS_S_FAILURE;
107 token->length = length;
109 p = (unsigned char *)token->value;
111 store_uint32_be(EAP_EXPORT_CONTEXT_V1, &p[0]); /* version */
112 store_uint32_be(ctx->state, &p[4]);
113 store_uint32_be(ctx->flags, &p[8]);
114 store_uint32_be(ctx->gssFlags, &p[12]);
115 p = store_oid(ctx->mechanismUsed, &p[16]);
117 store_uint32_be(ctx->checksumType, &p[0]);
118 store_uint32_be(ctx->encryptionType, &p[4]);
119 p = store_buffer(&key, &p[8], FALSE);
121 p = store_buffer(&initiatorName, p, FALSE);
122 p = store_buffer(&acceptorName, p, FALSE);
124 store_uint64_be(ctx->expiryTime, &p[0]);
125 store_uint64_be(ctx->sendSeq, &p[8]);
126 store_uint64_be(ctx->recvSeq, &p[16]);
129 major = sequenceExternalize(minor, ctx->seqState, &p, &length);
130 if (GSS_ERROR(major))
133 if (partialCtx.value != NULL)
134 p = store_buffer(&partialCtx, p, FALSE);
136 assert(p == (unsigned char *)token->value + token->length);
138 major = GSS_S_COMPLETE;
142 if (GSS_ERROR(major))
143 gss_release_buffer(&tmpMinor, token);
144 gss_release_buffer(&tmpMinor, &initiatorName);
145 gss_release_buffer(&tmpMinor, &acceptorName);
146 gss_release_buffer(&tmpMinor, &partialCtx);
152 gss_export_sec_context(OM_uint32 *minor,
153 gss_ctx_id_t *context_handle,
154 gss_buffer_t interprocess_token)
156 OM_uint32 major, tmpMinor;
157 gss_ctx_id_t ctx = *context_handle;
159 interprocess_token->length = 0;
160 interprocess_token->value = NULL;
162 if (ctx == GSS_C_NO_CONTEXT)
163 return GSS_S_NO_CONTEXT;
165 GSSEAP_MUTEX_LOCK(&ctx->mutex);
167 major = gssEapExportSecContext(minor, ctx, interprocess_token);
168 if (GSS_ERROR(major)) {
169 GSSEAP_MUTEX_UNLOCK(&ctx->mutex);
173 *context_handle = GSS_C_NO_CONTEXT;
175 GSSEAP_MUTEX_UNLOCK(&ctx->mutex);
177 gssEapReleaseContext(&tmpMinor, &ctx);
179 return GSS_S_COMPLETE;