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33 #include "gssapiP_eap.h"
36 gssEapExportPartialContext(OM_uint32 *minor,
40 OM_uint32 major, tmpMinor;
41 size_t length, serverLen;
44 if (ctx->acceptorCtx.radServer != NULL)
45 serverLen = strlen(ctx->acceptorCtx.radServer);
49 length = 4 + serverLen + 4 + ctx->acceptorCtx.state.length;
51 token->value = GSSEAP_MALLOC(length);
52 if (token->value == NULL) {
54 major = GSS_S_FAILURE;
57 token->length = length;
59 p = (unsigned char *)token->value;
61 store_uint32_be(serverLen, p);
64 memcpy(p, ctx->acceptorCtx.radServer, serverLen);
68 store_uint32_be(ctx->acceptorCtx.state.length, p);
70 if (ctx->acceptorCtx.state.length != 0) {
71 memcpy(p, ctx->acceptorCtx.state.value,
72 ctx->acceptorCtx.state.length);
73 p += ctx->acceptorCtx.state.length;
76 assert(p == (unsigned char *)token->value + token->length);
80 gss_release_buffer(&tmpMinor, token);
86 gssEapExportSecContext(OM_uint32 *minor,
90 OM_uint32 major, tmpMinor;
92 gss_buffer_desc initiatorName = GSS_C_EMPTY_BUFFER;
93 gss_buffer_desc acceptorName = GSS_C_EMPTY_BUFFER;
94 gss_buffer_desc partialCtx = GSS_C_EMPTY_BUFFER;
98 if ((CTX_IS_INITIATOR(ctx) && !CTX_IS_ESTABLISHED(ctx)) ||
99 ctx->mechanismUsed == GSS_C_NO_OID)
100 return GSS_S_NO_CONTEXT;
102 key.length = KRB_KEY_LENGTH(&ctx->rfc3961Key);
103 key.value = KRB_KEY_DATA(&ctx->rfc3961Key);
105 if (ctx->initiatorName != GSS_C_NO_NAME) {
106 major = gssEapExportNameInternal(minor, ctx->initiatorName,
108 EXPORT_NAME_FLAG_COMPOSITE);
109 if (GSS_ERROR(major))
112 if (ctx->acceptorName != GSS_C_NO_NAME) {
113 major = gssEapExportNameInternal(minor, ctx->acceptorName,
115 EXPORT_NAME_FLAG_COMPOSITE);
116 if (GSS_ERROR(major))
121 * The partial context is only transmitted for unestablished acceptor
124 if (!CTX_IS_INITIATOR(ctx) && !CTX_IS_ESTABLISHED(ctx)) {
125 assert((ctx->flags & CTX_FLAG_KRB_REAUTH_GSS) == 0);
127 major = gssEapExportPartialContext(minor, ctx, &partialCtx);
128 if (GSS_ERROR(major))
132 length = 16; /* version, state, flags, */
133 length += 4 + ctx->mechanismUsed->length; /* mechanismUsed */
134 length += 12 + key.length; /* rfc3961Key.value */
135 length += 4 + initiatorName.length; /* initiatorName.value */
136 length += 4 + acceptorName.length; /* acceptorName.value */
137 length += 24 + sequenceSize(ctx->seqState); /* seqState */
139 if (partialCtx.value != NULL)
140 length += 4 + partialCtx.length; /* partialCtx.value */
142 token->value = GSSEAP_MALLOC(length);
143 if (token->value == NULL) {
145 major = GSS_S_FAILURE;
148 token->length = length;
150 p = (unsigned char *)token->value;
152 store_uint32_be(EAP_EXPORT_CONTEXT_V1, &p[0]); /* version */
153 store_uint32_be(ctx->state, &p[4]);
154 store_uint32_be(ctx->flags, &p[8]);
155 store_uint32_be(ctx->gssFlags, &p[12]);
156 p = store_oid(ctx->mechanismUsed, &p[16]);
158 store_uint32_be(ctx->checksumType, &p[0]);
159 store_uint32_be(ctx->encryptionType, &p[4]);
160 p = store_buffer(&key, &p[8], FALSE);
162 p = store_buffer(&initiatorName, p, FALSE);
163 p = store_buffer(&acceptorName, p, FALSE);
165 store_uint64_be(ctx->expiryTime, &p[0]);
166 store_uint64_be(ctx->sendSeq, &p[8]);
167 store_uint64_be(ctx->recvSeq, &p[16]);
170 major = sequenceExternalize(minor, ctx->seqState, &p, &length);
171 if (GSS_ERROR(major))
174 if (partialCtx.value != NULL)
175 p = store_buffer(&partialCtx, p, FALSE);
177 assert(p == (unsigned char *)token->value + token->length);
179 major = GSS_S_COMPLETE;
183 if (GSS_ERROR(major))
184 gss_release_buffer(&tmpMinor, token);
185 gss_release_buffer(&tmpMinor, &initiatorName);
186 gss_release_buffer(&tmpMinor, &acceptorName);
187 gss_release_buffer(&tmpMinor, &partialCtx);
193 gss_export_sec_context(OM_uint32 *minor,
194 gss_ctx_id_t *context_handle,
195 gss_buffer_t interprocess_token)
197 OM_uint32 major, tmpMinor;
198 gss_ctx_id_t ctx = *context_handle;
200 interprocess_token->length = 0;
201 interprocess_token->value = NULL;
203 if (ctx == GSS_C_NO_CONTEXT) {
205 return GSS_S_NO_CONTEXT;
210 GSSEAP_MUTEX_LOCK(&ctx->mutex);
212 major = gssEapExportSecContext(minor, ctx, interprocess_token);
213 if (GSS_ERROR(major)) {
214 GSSEAP_MUTEX_UNLOCK(&ctx->mutex);
218 *context_handle = GSS_C_NO_CONTEXT;
220 GSSEAP_MUTEX_UNLOCK(&ctx->mutex);
222 gssEapReleaseContext(&tmpMinor, &ctx);
224 return GSS_S_COMPLETE;