-#ifdef HAVE_LUCID_CONTEXT_SUPPORT /* Lucid context support */
-static int
-write_lucid_keyblock(char **p, char *end, gss_krb5_lucid_key_t *key)
-{
- gss_buffer_desc tmp;
-
- if (WRITE_BYTES(p, end, key->type)) return -1;
- tmp.length = key->length;
- tmp.value = key->data;
- if (write_buffer(p, end, &tmp)) return -1;
- return 0;
-}
-
-static int
-prepare_krb5_rfc1964_buffer(gss_krb5_lucid_context_v1_t *lctx,
- gss_buffer_desc *buf)
-{
- char *p, *end;
- static int constant_zero = 0;
- unsigned char fakeseed[16];
- uint32_t word_send_seq;
- gss_krb5_lucid_key_t enc_key;
- int i;
- char *skd, *dkd;
- gss_buffer_desc fakeoid;
-
- /*
- * The new Kerberos interface to get the gss context
- * does not include the seed or seed_init fields
- * because we never really use them. But for now,
- * send down a fake buffer so we can use the same
- * interface to the kernel.
- */
- memset(&enc_key, 0, sizeof(enc_key));
- memset(&fakeoid, 0, sizeof(fakeoid));
-
- if (!(buf->value = calloc(1, MAX_CTX_LEN)))
- goto out_err;
- p = buf->value;
- end = buf->value + MAX_CTX_LEN;
-
- if (WRITE_BYTES(&p, end, lctx->initiate)) goto out_err;
-
- /* seed_init and seed not used by kernel anyway */
- if (WRITE_BYTES(&p, end, constant_zero)) goto out_err;
- if (write_bytes(&p, end, &fakeseed, 16)) goto out_err;
-
- if (WRITE_BYTES(&p, end, lctx->rfc1964_kd.sign_alg)) goto out_err;
- if (WRITE_BYTES(&p, end, lctx->rfc1964_kd.seal_alg)) goto out_err;
- if (WRITE_BYTES(&p, end, lctx->endtime)) goto out_err;
- word_send_seq = lctx->send_seq; /* XXX send_seq is 64-bit */
- if (WRITE_BYTES(&p, end, word_send_seq)) goto out_err;
- if (write_buffer(&p, end, (gss_buffer_desc*)&krb5oid)) goto out_err;
-
- printerr(2, "prepare_krb5_rfc1964_buffer: serializing keys with "
- "enctype %d and length %d\n",
- lctx->rfc1964_kd.ctx_key.type,
- lctx->rfc1964_kd.ctx_key.length);
-
- /* derive the encryption key and copy it into buffer */
- enc_key.type = lctx->rfc1964_kd.ctx_key.type;
- enc_key.length = lctx->rfc1964_kd.ctx_key.length;
- if ((enc_key.data = calloc(1, enc_key.length)) == NULL)
- goto out_err;
- skd = (char *) lctx->rfc1964_kd.ctx_key.data;
- dkd = (char *) enc_key.data;
- for (i = 0; i < enc_key.length; i++)
- dkd[i] = skd[i] ^ 0xf0;
- if (write_lucid_keyblock(&p, end, &enc_key)) {
- free(enc_key.data);
- goto out_err;
- }
- free(enc_key.data);
-
- if (write_lucid_keyblock(&p, end, &lctx->rfc1964_kd.ctx_key))
- goto out_err;
-
- buf->length = p - (char *)buf->value;
- return 0;
-out_err:
- printerr(0, "ERROR: failed serializing krb5 context for kernel\n");
- if (buf->value) free(buf->value);
- buf->length = 0;
- if (enc_key.data) free(enc_key.data);
- return -1;
-}
-
-static int
-prepare_krb5_rfc_cfx_buffer(gss_krb5_lucid_context_v1_t *lctx,
- gss_buffer_desc *buf)
-{
- printerr(0, "ERROR: prepare_krb5_rfc_cfx_buffer: not implemented\n");
- return -1;
-}
-
-
-int
-serialize_krb5_ctx(gss_ctx_id_t ctx, gss_buffer_desc *buf)
-{
- OM_uint32 maj_stat, min_stat;
- void *return_ctx = 0;
- OM_uint32 vers;
- gss_krb5_lucid_context_v1_t *lctx = 0;
- int retcode = 0;
-
- printerr(2, "DEBUG: serialize_krb5_ctx: lucid version!\n");
- maj_stat = gss_export_lucid_sec_context(&min_stat, &ctx,
- 1, &return_ctx);
- if (maj_stat != GSS_S_COMPLETE) {
- pgsserr("gss_export_lucid_sec_context",
- maj_stat, min_stat, &krb5oid);
- goto out_err;
- }
-
- /* Check the version returned, we only support v1 right now */
- vers = ((gss_krb5_lucid_context_version_t *)return_ctx)->version;
- switch (vers) {
- case 1:
- lctx = (gss_krb5_lucid_context_v1_t *) return_ctx;
- break;
- default:
- printerr(0, "ERROR: unsupported lucid sec context version %d\n",
- vers);
- goto out_err;
- break;
- }
-
- /* Now lctx points to a lucid context that we can send down to kernel */
- if (lctx->protocol == 0)
- retcode = prepare_krb5_rfc1964_buffer(lctx, buf);
- else
- retcode = prepare_krb5_rfc_cfx_buffer(lctx, buf);
-
- maj_stat = gss_free_lucid_sec_context(&min_stat, ctx, return_ctx);
- if (maj_stat != GSS_S_COMPLETE) {
- pgsserr("gss_export_lucid_sec_context",
- maj_stat, min_stat, &krb5oid);
- printerr(0, "WARN: failed to free lucid sec context\n");
- }
-
- if (retcode) {
- printerr(1, "serialize_krb5_ctx: prepare_krb5_*_buffer "
- "failed (retcode = %d)\n", retcode);
- goto out_err;
- }
-
- return 0;
-
-out_err:
- printerr(0, "ERROR: failed serializing krb5 context for kernel\n");
- return -1;
-}
-
-
-#else /* HAVE_LUCID_CONTEXT_SUPPORT */
-