1 files changed, 388 insertions, 0 deletions
diff --git a/3rdParty/Unbound/src/src/util/fptr_wlist.c b/3rdParty/Unbound/src/src/util/fptr_wlist.c
new file mode 100644
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--- /dev/null
+++ b/3rdParty/Unbound/src/src/util/fptr_wlist.c
@@ -0,0 +1,388 @@
+/*
+ * util/fptr_wlist.c - function pointer whitelists.
+ *
+ * Copyright (c) 2007, NLnet Labs. All rights reserved.
+ *
+ * This software is open source.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ * Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 
+ * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 
+ * Neither the name of the NLNET LABS nor the names of its contributors may
+ * be used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/**
+ * \file
+ *
+ * This file contains functions that check function pointers.
+ * The functions contain a whitelist of known good callback values.
+ * Any other values lead to an error. 
+ *
+ * Due to the listing nature, this file violates all the modularization
+ * boundaries in the program.
+ */
+#include "config.h"
+#include "util/fptr_wlist.h"
+#include "util/mini_event.h"
+#include "daemon/worker.h"
+#include "daemon/remote.h"
+#include "services/outside_network.h"
+#include "services/mesh.h"
+#include "services/localzone.h"
+#include "services/cache/infra.h"
+#include "services/cache/rrset.h"
+#include "iterator/iterator.h"
+#include "iterator/iter_fwd.h"
+#include "validator/validator.h"
+#include "validator/val_anchor.h"
+#include "validator/val_nsec3.h"
+#include "validator/val_sigcrypt.h"
+#include "validator/val_kentry.h"
+#include "validator/val_neg.h"
+#include "validator/autotrust.h"
+#include "util/data/msgreply.h"
+#include "util/data/packed_rrset.h"
+#include "util/storage/slabhash.h"
+#include "util/storage/dnstree.h"
+#include "util/locks.h"
+#include "libunbound/libworker.h"
+#include "libunbound/context.h"
+#include "util/tube.h"
+#include "util/config_file.h"
+#ifdef UB_ON_WINDOWS
+#include "winrc/win_svc.h"
+#endif
+
+#ifdef WITH_PYTHONMODULE
+#include "pythonmod/pythonmod.h"
+#endif
+
+int 
+fptr_whitelist_comm_point(comm_point_callback_t *fptr)
+{
+	if(fptr == &worker_handle_request) return 1;
+	else if(fptr == &outnet_udp_cb) return 1;
+	else if(fptr == &outnet_tcp_cb) return 1;
+	else if(fptr == &tube_handle_listen) return 1;
+	return 0;
+}
+
+int 
+fptr_whitelist_comm_point_raw(comm_point_callback_t *fptr)
+{
+	if(fptr == &tube_handle_listen) return 1;
+	else if(fptr == &tube_handle_write) return 1;
+	else if(fptr == &remote_accept_callback) return 1;
+	else if(fptr == &remote_control_callback) return 1;
+	return 0;
+}
+
+int 
+fptr_whitelist_comm_timer(void (*fptr)(void*))
+{
+	if(fptr == &pending_udp_timer_cb) return 1;
+	else if(fptr == &outnet_tcptimer) return 1;
+	else if(fptr == &worker_stat_timer_cb) return 1;
+	else if(fptr == &worker_probe_timer_cb) return 1;
+#ifdef UB_ON_WINDOWS
+	else if(fptr == &wsvc_cron_cb) return 1;
+#endif
+	return 0;
+}
+
+int 
+fptr_whitelist_comm_signal(void (*fptr)(int, void*))
+{
+	if(fptr == &worker_sighandler) return 1;
+	return 0;
+}
+
+int 
+fptr_whitelist_event(void (*fptr)(int, short, void *))
+{
+	if(fptr == &comm_point_udp_callback) return 1;
+	else if(fptr == &comm_point_udp_ancil_callback) return 1;
+	else if(fptr == &comm_point_tcp_accept_callback) return 1;
+	else if(fptr == &comm_point_tcp_handle_callback) return 1;
+	else if(fptr == &comm_timer_callback) return 1;
+	else if(fptr == &comm_signal_callback) return 1;
+	else if(fptr == &comm_point_local_handle_callback) return 1;
+	else if(fptr == &comm_point_raw_handle_callback) return 1;
+	else if(fptr == &tube_handle_signal) return 1;
+#ifdef UB_ON_WINDOWS
+	else if(fptr == &worker_win_stop_cb) return 1;
+#endif
+	return 0;
+}
+
+int 
+fptr_whitelist_pending_udp(comm_point_callback_t *fptr)
+{
+	if(fptr == &serviced_udp_callback) return 1;
+	else if(fptr == &worker_handle_reply) return 1;
+	else if(fptr == &libworker_handle_reply) return 1;
+	return 0;
+}
+
+int 
+fptr_whitelist_pending_tcp(comm_point_callback_t *fptr)
+{
+	if(fptr == &serviced_tcp_callback) return 1;
+	else if(fptr == &worker_handle_reply) return 1;
+	else if(fptr == &libworker_handle_reply) return 1;
+	return 0;
+}
+
+int 
+fptr_whitelist_serviced_query(comm_point_callback_t *fptr)
+{
+	if(fptr == &worker_handle_service_reply) return 1;
+	else if(fptr == &libworker_handle_service_reply) return 1;
+	return 0;
+}
+
+int 
+fptr_whitelist_rbtree_cmp(int (*fptr) (const void *, const void *))
+{
+	if(fptr == &mesh_state_compare) return 1;
+	else if(fptr == &mesh_state_ref_compare) return 1;
+	else if(fptr == &addr_tree_compare) return 1;
+	else if(fptr == &local_zone_cmp) return 1;
+	else if(fptr == &local_data_cmp) return 1;
+	else if(fptr == &fwd_cmp) return 1;
+	else if(fptr == &pending_cmp) return 1;
+	else if(fptr == &serviced_cmp) return 1;
+	else if(fptr == &name_tree_compare) return 1;
+	else if(fptr == &order_lock_cmp) return 1;
+	else if(fptr == &codeline_cmp) return 1;
+	else if(fptr == &nsec3_hash_cmp) return 1;
+	else if(fptr == &mini_ev_cmp) return 1;
+	else if(fptr == &anchor_cmp) return 1;
+	else if(fptr == &canonical_tree_compare) return 1;
+	else if(fptr == &context_query_cmp) return 1;
+	else if(fptr == &val_neg_data_compare) return 1;
+	else if(fptr == &val_neg_zone_compare) return 1;
+	else if(fptr == &probetree_cmp) return 1;
+	else if(fptr == &replay_var_compare) return 1;
+	return 0;
+}
+
+int 
+fptr_whitelist_hash_sizefunc(lruhash_sizefunc_t fptr)
+{
+	if(fptr == &msgreply_sizefunc) return 1;
+	else if(fptr == &ub_rrset_sizefunc) return 1;
+	else if(fptr == &infra_sizefunc) return 1;
+	else if(fptr == &key_entry_sizefunc) return 1;
+	else if(fptr == &test_slabhash_sizefunc) return 1;
+	return 0;
+}
+
+int 
+fptr_whitelist_hash_compfunc(lruhash_compfunc_t fptr)
+{
+	if(fptr == &query_info_compare) return 1;
+	else if(fptr == &ub_rrset_compare) return 1;
+	else if(fptr == &infra_compfunc) return 1;
+	else if(fptr == &key_entry_compfunc) return 1;
+	else if(fptr == &test_slabhash_compfunc) return 1;
+	return 0;
+}
+
+int 
+fptr_whitelist_hash_delkeyfunc(lruhash_delkeyfunc_t fptr)
+{
+	if(fptr == &query_entry_delete) return 1;
+	else if(fptr == &ub_rrset_key_delete) return 1;
+	else if(fptr == &infra_delkeyfunc) return 1;
+	else if(fptr == &key_entry_delkeyfunc) return 1;
+	else if(fptr == &test_slabhash_delkey) return 1;
+	return 0;
+}
+
+int 
+fptr_whitelist_hash_deldatafunc(lruhash_deldatafunc_t fptr)
+{
+	if(fptr == &reply_info_delete) return 1;
+	else if(fptr == &rrset_data_delete) return 1;
+	else if(fptr == &infra_deldatafunc) return 1;
+	else if(fptr == &key_entry_deldatafunc) return 1;
+	else if(fptr == &test_slabhash_deldata) return 1;
+	return 0;
+}
+
+int 
+fptr_whitelist_hash_markdelfunc(lruhash_markdelfunc_t fptr)
+{
+	if(fptr == NULL) return 1;
+	else if(fptr == &rrset_markdel) return 1;
+	return 0;
+}
+
+/** whitelist env->send_query callbacks */
+int 
+fptr_whitelist_modenv_send_query(struct outbound_entry* (*fptr)(
+        uint8_t* qname, size_t qnamelen, uint16_t qtype, uint16_t qclass,
+        uint16_t flags, int dnssec, int want_dnssec, 
+	struct sockaddr_storage* addr, socklen_t addrlen, 
+	uint8_t* zone, size_t zonelen,
+	struct module_qstate* q))
+{
+	if(fptr == &worker_send_query) return 1;
+	else if(fptr == &libworker_send_query) return 1;
+	return 0;
+}
+
+int 
+fptr_whitelist_modenv_detach_subs(void (*fptr)(
+        struct module_qstate* qstate))
+{
+	if(fptr == &mesh_detach_subs) return 1;
+	return 0;
+}
+
+int 
+fptr_whitelist_modenv_attach_sub(int (*fptr)(
+        struct module_qstate* qstate, struct query_info* qinfo,
+        uint16_t qflags, int prime, struct module_qstate** newq))
+{
+	if(fptr == &mesh_attach_sub) return 1;
+	return 0;
+}
+
+int 
+fptr_whitelist_modenv_kill_sub(void (*fptr)(struct module_qstate* newq))
+{
+	if(fptr == &mesh_state_delete) return 1;
+	return 0;
+}
+
+int 
+fptr_whitelist_modenv_detect_cycle(int (*fptr)(        
+	struct module_qstate* qstate, struct query_info* qinfo,         
+	uint16_t flags, int prime))
+{
+	if(fptr == &mesh_detect_cycle) return 1;
+	return 0;
+}
+
+int 
+fptr_whitelist_mod_init(int (*fptr)(struct module_env* env, int id))
+{
+	if(fptr == &iter_init) return 1;
+	else if(fptr == &val_init) return 1;
+#ifdef WITH_PYTHONMODULE
+	else if(fptr == &pythonmod_init) return 1;
+#endif
+	return 0;
+}
+
+int 
+fptr_whitelist_mod_deinit(void (*fptr)(struct module_env* env, int id))
+{
+	if(fptr == &iter_deinit) return 1;
+	else if(fptr == &val_deinit) return 1;
+#ifdef WITH_PYTHONMODULE
+	else if(fptr == &pythonmod_deinit) return 1;
+#endif
+	return 0;
+}
+
+int 
+fptr_whitelist_mod_operate(void (*fptr)(struct module_qstate* qstate,
+        enum module_ev event, int id, struct outbound_entry* outbound))
+{
+	if(fptr == &iter_operate) return 1;
+	else if(fptr == &val_operate) return 1;
+#ifdef WITH_PYTHONMODULE
+	else if(fptr == &pythonmod_operate) return 1;
+#endif
+	return 0;
+}
+
+int 
+fptr_whitelist_mod_inform_super(void (*fptr)(
+        struct module_qstate* qstate, int id, struct module_qstate* super))
+{
+	if(fptr == &iter_inform_super) return 1;
+	else if(fptr == &val_inform_super) return 1;
+#ifdef WITH_PYTHONMODULE
+	else if(fptr == &pythonmod_inform_super) return 1;
+#endif
+	return 0;
+}
+
+int 
+fptr_whitelist_mod_clear(void (*fptr)(struct module_qstate* qstate,
+        int id))
+{
+	if(fptr == &iter_clear) return 1;
+	else if(fptr == &val_clear) return 1;
+#ifdef WITH_PYTHONMODULE
+	else if(fptr == &pythonmod_clear) return 1;
+#endif
+	return 0;
+}
+
+int 
+fptr_whitelist_mod_get_mem(size_t (*fptr)(struct module_env* env, int id))
+{
+	if(fptr == &iter_get_mem) return 1;
+	else if(fptr == &val_get_mem) return 1;
+#ifdef WITH_PYTHONMODULE
+	else if(fptr == &pythonmod_get_mem) return 1;
+#endif
+	return 0;
+}
+
+int 
+fptr_whitelist_alloc_cleanup(void (*fptr)(void*))
+{
+	if(fptr == &worker_alloc_cleanup) return 1;
+	return 0;
+}
+
+int fptr_whitelist_tube_listen(tube_callback_t* fptr)
+{
+	if(fptr == &worker_handle_control_cmd) return 1;
+	else if(fptr == &libworker_handle_control_cmd) return 1;
+	return 0;
+}
+
+int fptr_whitelist_mesh_cb(mesh_cb_func_t fptr)
+{
+	if(fptr == &libworker_fg_done_cb) return 1;
+	else if(fptr == &libworker_bg_done_cb) return 1;
+	else if(fptr == &probe_answer_cb) return 1;
+	return 0;
+}
+
+int fptr_whitelist_print_func(void (*fptr)(char*,void*))
+{
+	if(fptr == &config_print_func) return 1;
+	else if(fptr == &config_collate_func) return 1;
+	else if(fptr == &remote_get_opt_ssl) return 1;
+	return 0;
+}