-/*
- Parse the netTokenInit, either from the client, to the server, or
- from the server to the client.
-*/
-
-static NTSTATUS gensec_spnego_parse_negTokenInit(struct gensec_security *gensec_security,
- struct spnego_state *spnego_state,
- TALLOC_CTX *out_mem_ctx,
- struct tevent_context *ev,
- struct spnego_data *spnego_in,
- DATA_BLOB *unwrapped_out)
-{
- int i;
- NTSTATUS nt_status = NT_STATUS_INVALID_PARAMETER;
- const char * const *mechType = NULL;
- DATA_BLOB unwrapped_in = data_blob_null;
- bool ok;
- const struct gensec_security_ops_wrapper *all_sec = NULL;
- uint32_t j;
-
- if (spnego_state->state_position != SPNEGO_SERVER_START) {
- return NT_STATUS_INTERNAL_ERROR;
- }
-
- if (spnego_in->type != SPNEGO_NEG_TOKEN_INIT) {
- return NT_STATUS_INTERNAL_ERROR;
- }
-
- mechType = spnego_in->negTokenInit.mechTypes;
- if (mechType == NULL) {
- return NT_STATUS_INVALID_PARAMETER;
- }
- unwrapped_in = spnego_in->negTokenInit.mechToken;
-
- all_sec = gensec_security_by_oid_list(gensec_security,
- out_mem_ctx,
- mechType,
- GENSEC_OID_SPNEGO);
- if (all_sec == NULL) {
- DBG_WARNING("gensec_security_by_oid_list() failed\n");
- return NT_STATUS_INVALID_PARAMETER;
- }
-
- ok = spnego_write_mech_types(spnego_state,
- mechType,
- &spnego_state->mech_types);
- if (!ok) {
- DEBUG(1, ("SPNEGO: Failed to write mechTypes\n"));
- return NT_STATUS_NO_MEMORY;
- }
-
- for (j=0; mechType && mechType[j]; j++) {
- const struct gensec_security_ops_wrapper *cur_sec = NULL;
-
- for (i=0; all_sec && all_sec[i].op; i++) {
- if (strcmp(mechType[j], all_sec[i].oid) == 0) {
- cur_sec = &all_sec[i];
- break;
- }
- }
-
- if (cur_sec == NULL) {
- continue;
- }
-
- nt_status = gensec_subcontext_start(spnego_state,
- gensec_security,
- &spnego_state->sub_sec_security);
- if (!NT_STATUS_IS_OK(nt_status)) {
- return nt_status;
- }
- /* select the sub context */
- nt_status = gensec_start_mech_by_ops(spnego_state->sub_sec_security,
- cur_sec->op);
- if (!NT_STATUS_IS_OK(nt_status)) {
- /*
- * Pretend we never started it
- */
- gensec_spnego_update_sub_abort(spnego_state);
- continue;
- }
-
- if (j > 0) {
- /* no optimistic token */
- spnego_state->neg_oid = cur_sec->oid;
- *unwrapped_out = data_blob_null;
- nt_status = NT_STATUS_MORE_PROCESSING_REQUIRED;
- /*
- * Indicate the downgrade and request a
- * mic.
- */
- spnego_state->downgraded = true;
- spnego_state->mic_requested = true;
- return nt_status;
- }
-
- nt_status = gensec_update_ev(spnego_state->sub_sec_security,
- out_mem_ctx,
- ev,
- unwrapped_in,
- unwrapped_out);
- if (NT_STATUS_IS_OK(nt_status)) {
- spnego_state->sub_sec_ready = true;
- }
- if (NT_STATUS_EQUAL(nt_status, NT_STATUS_INVALID_PARAMETER) ||
- NT_STATUS_EQUAL(nt_status, NT_STATUS_CANT_ACCESS_DOMAIN_INFO)) {
-
- DEBUG(1, ("SPNEGO(%s) NEG_TOKEN_INIT failed to parse contents: %s\n",
- spnego_state->sub_sec_security->ops->name, nt_errstr(nt_status)));
-
- /*
- * Pretend we never started it
- */
- gensec_spnego_update_sub_abort(spnego_state);
- continue;
- }
-
- if (GENSEC_UPDATE_IS_NTERROR(nt_status)) {
- DEBUG(1, ("SPNEGO(%s) NEG_TOKEN_INIT failed: %s\n",
- spnego_state->sub_sec_security->ops->name,
- nt_errstr(nt_status)));
- return nt_status;
- }
-
- spnego_state->neg_oid = cur_sec->oid;
- return nt_status; /* OK or MORE PROCESSING */
- }
-
- DEBUG(1, ("SPNEGO: Could not find a suitable mechtype in NEG_TOKEN_INIT\n"));
- return NT_STATUS_INVALID_PARAMETER;
-}
-