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33 #include "gssapiP_eap.h"
36 * Export a partially established acceptor context.
39 gssEapExportPartialContext(OM_uint32 *minor,
43 OM_uint32 major, tmpMinor;
44 size_t length, serverLen = 0;
46 char serverBuf[MAXHOSTNAMELEN];
48 if (ctx->acceptorCtx.radConn != NULL) {
49 if (rs_conn_get_current_server(ctx->acceptorCtx.radConn,
50 serverBuf, sizeof(serverBuf)) != 0) {
51 return gssEapRadiusMapError(minor,
52 rs_err_conn_pop(ctx->acceptorCtx.radConn));
54 serverLen = strlen(serverBuf);
57 length = 4 + serverLen + 4 + ctx->acceptorCtx.state.length;
59 token->value = GSSEAP_MALLOC(length);
60 if (token->value == NULL) {
62 major = GSS_S_FAILURE;
65 token->length = length;
67 p = (unsigned char *)token->value;
69 store_uint32_be(serverLen, p);
72 memcpy(p, serverBuf, serverLen);
76 store_uint32_be(ctx->acceptorCtx.state.length, p);
78 if (ctx->acceptorCtx.state.length != 0) {
79 memcpy(p, ctx->acceptorCtx.state.value,
80 ctx->acceptorCtx.state.length);
81 p += ctx->acceptorCtx.state.length;
84 assert(p == (unsigned char *)token->value + token->length);
86 major = GSS_S_COMPLETE;
91 gss_release_buffer(&tmpMinor, token);
97 gssEapExportSecContext(OM_uint32 *minor,
101 OM_uint32 major, tmpMinor;
103 gss_buffer_desc initiatorName = GSS_C_EMPTY_BUFFER;
104 gss_buffer_desc acceptorName = GSS_C_EMPTY_BUFFER;
105 gss_buffer_desc partialCtx = GSS_C_EMPTY_BUFFER;
109 if ((CTX_IS_INITIATOR(ctx) && !CTX_IS_ESTABLISHED(ctx)) ||
110 ctx->mechanismUsed == GSS_C_NO_OID) {
111 *minor = GSSEAP_CONTEXT_INCOMPLETE;
112 return GSS_S_NO_CONTEXT;
115 key.length = KRB_KEY_LENGTH(&ctx->rfc3961Key);
116 key.value = KRB_KEY_DATA(&ctx->rfc3961Key);
118 if (ctx->initiatorName != GSS_C_NO_NAME) {
119 major = gssEapExportNameInternal(minor, ctx->initiatorName,
121 EXPORT_NAME_FLAG_COMPOSITE);
122 if (GSS_ERROR(major))
125 if (ctx->acceptorName != GSS_C_NO_NAME) {
126 major = gssEapExportNameInternal(minor, ctx->acceptorName,
128 EXPORT_NAME_FLAG_COMPOSITE);
129 if (GSS_ERROR(major))
134 * The partial context is only transmitted for unestablished acceptor
137 if (!CTX_IS_INITIATOR(ctx) && !CTX_IS_ESTABLISHED(ctx)) {
138 assert((ctx->flags & CTX_FLAG_KRB_REAUTH_GSS) == 0);
140 major = gssEapExportPartialContext(minor, ctx, &partialCtx);
141 if (GSS_ERROR(major))
145 length = 16; /* version, state, flags, */
146 length += 4 + ctx->mechanismUsed->length; /* mechanismUsed */
147 length += 12 + key.length; /* rfc3961Key.value */
148 length += 4 + initiatorName.length; /* initiatorName.value */
149 length += 4 + acceptorName.length; /* acceptorName.value */
150 length += 24 + sequenceSize(ctx->seqState); /* seqState */
152 if (partialCtx.value != NULL)
153 length += 4 + partialCtx.length; /* partialCtx.value */
155 token->value = GSSEAP_MALLOC(length);
156 if (token->value == NULL) {
158 major = GSS_S_FAILURE;
161 token->length = length;
163 p = (unsigned char *)token->value;
165 store_uint32_be(EAP_EXPORT_CONTEXT_V1, &p[0]); /* version */
166 store_uint32_be(ctx->state, &p[4]);
167 store_uint32_be(ctx->flags, &p[8]);
168 store_uint32_be(ctx->gssFlags, &p[12]);
169 p = store_oid(ctx->mechanismUsed, &p[16]);
171 store_uint32_be(ctx->checksumType, &p[0]);
172 store_uint32_be(ctx->encryptionType, &p[4]);
173 p = store_buffer(&key, &p[8], FALSE);
175 p = store_buffer(&initiatorName, p, FALSE);
176 p = store_buffer(&acceptorName, p, FALSE);
178 store_uint64_be(ctx->expiryTime, &p[0]);
179 store_uint64_be(ctx->sendSeq, &p[8]);
180 store_uint64_be(ctx->recvSeq, &p[16]);
183 major = sequenceExternalize(minor, ctx->seqState, &p, &length);
184 if (GSS_ERROR(major))
187 if (partialCtx.value != NULL)
188 p = store_buffer(&partialCtx, p, FALSE);
190 assert(p == (unsigned char *)token->value + token->length);
192 major = GSS_S_COMPLETE;
196 if (GSS_ERROR(major))
197 gss_release_buffer(&tmpMinor, token);
198 gss_release_buffer(&tmpMinor, &initiatorName);
199 gss_release_buffer(&tmpMinor, &acceptorName);
200 gss_release_buffer(&tmpMinor, &partialCtx);
206 gss_export_sec_context(OM_uint32 *minor,
207 gss_ctx_id_t *context_handle,
208 gss_buffer_t interprocess_token)
210 OM_uint32 major, tmpMinor;
211 gss_ctx_id_t ctx = *context_handle;
213 interprocess_token->length = 0;
214 interprocess_token->value = NULL;
216 if (ctx == GSS_C_NO_CONTEXT) {
218 return GSS_S_NO_CONTEXT;
223 GSSEAP_MUTEX_LOCK(&ctx->mutex);
225 major = gssEapExportSecContext(minor, ctx, interprocess_token);
226 if (GSS_ERROR(major)) {
227 GSSEAP_MUTEX_UNLOCK(&ctx->mutex);
231 *context_handle = GSS_C_NO_CONTEXT;
233 GSSEAP_MUTEX_UNLOCK(&ctx->mutex);
235 gssEapReleaseContext(&tmpMinor, &ctx);
237 return GSS_S_COMPLETE;