[nss-ecm] Enhanced Connection Manager

Provides initial functionality for the Enhanced Connection Manager.

Change-Id: I9a9258bf6386cc691f1a80ccc69aa063938e5a5e
Signed-off-by: Ben Menchaca <bmenchac@codeaurora.org>
diff --git a/ecm_db.h b/ecm_db.h
new file mode 100644
index 0000000..e63a8c9
--- /dev/null
+++ b/ecm_db.h
@@ -0,0 +1,235 @@
+/*
+ **************************************************************************
+ * Copyright (c) 2014, The Linux Foundation.  All rights reserved.
+ * Permission to use, copy, modify, and/or distribute this software for
+ * any purpose with or without fee is hereby granted, provided that the
+ * above copyright notice and this permission notice appear in all copies.
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+ * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ **************************************************************************
+ */
+
+/*
+ * API's
+ */
+uint32_t ecm_db_time_get(void);
+void ecm_db_connection_defunct_all(void);
+
+void ecm_db_connection_data_totals_update_dropped(struct ecm_db_connection_instance *ci, bool is_from, uint64_t size, uint64_t packets);
+void ecm_db_connection_data_totals_update(struct ecm_db_connection_instance *ci, bool is_from, uint64_t size, uint64_t packets);
+
+bool ecm_db_connection_defunct_timer_reset(struct ecm_db_connection_instance *ci, ecm_db_timer_group_t tg);
+bool ecm_db_connection_defunct_timer_touch(struct ecm_db_connection_instance *ci);
+void ecm_db_connection_make_defunct(struct ecm_db_connection_instance *ci);
+
+uint32_t ecm_db_connection_serial_get(struct ecm_db_connection_instance *ci);
+
+void ecm_db_connection_from_address_get(struct ecm_db_connection_instance *ci, ip_addr_t addr);
+void ecm_db_connection_from_address_nat_get(struct ecm_db_connection_instance *ci, ip_addr_t addr);
+void ecm_db_connection_to_address_get(struct ecm_db_connection_instance *ci, ip_addr_t addr);
+void ecm_db_connection_to_address_nat_get(struct ecm_db_connection_instance *ci, ip_addr_t addr);
+int ecm_db_connection_to_port_get(struct ecm_db_connection_instance *ci);
+int ecm_db_connection_to_port_nat_get(struct ecm_db_connection_instance *ci);
+int ecm_db_connection_from_port_get(struct ecm_db_connection_instance *ci);
+int ecm_db_connection_from_port_nat_get(struct ecm_db_connection_instance *ci);
+
+void ecm_db_node_adress_get(struct ecm_db_node_instance *ni, uint8_t *address_buffer);
+void ecm_db_iface_adress_get(struct ecm_db_iface_instance *ii, uint8_t *address_buffer);
+
+void ecm_db_connection_from_node_address_get(struct ecm_db_connection_instance *ci, uint8_t *address_buffer);
+void ecm_db_connection_to_node_address_get(struct ecm_db_connection_instance *ci, uint8_t *address_buffer);
+void ecm_db_connection_to_nat_node_address_get(struct ecm_db_connection_instance *ci, uint8_t *address_buffer);
+void ecm_db_connection_from_nat_node_address_get(struct ecm_db_connection_instance *ci, uint8_t *address_buffer);
+void ecm_db_connection_to_iface_name_get(struct ecm_db_connection_instance *ci, char *name_buffer);
+void ecm_db_connection_from_iface_name_get(struct ecm_db_connection_instance *ci, char *name_buffer);
+int ecm_db_connection_from_iface_mtu_get(struct ecm_db_connection_instance *ci);
+ecm_db_iface_type_t ecm_db_connection_from_iface_type_get(struct ecm_db_connection_instance *ci);
+int ecm_db_connection_to_iface_mtu_get(struct ecm_db_connection_instance *ci);
+ecm_db_iface_type_t ecm_db_connection_to_iface_type_get(struct ecm_db_connection_instance *ci);
+
+ecm_db_iface_type_t ecm_db_connection_iface_type_get(struct ecm_db_iface_instance *ii);
+int32_t ecm_db_iface_mtu_reset(struct ecm_db_iface_instance *ii, int32_t mtu);
+int32_t ecm_db_iface_nss_interface_identifier_get(struct ecm_db_iface_instance *ii);
+
+struct ecm_front_end_connection_instance *ecm_db_connection_front_end_get_and_ref(struct ecm_db_connection_instance *ci);
+
+void ecm_db_connection_data_stats_get(struct ecm_db_connection_instance *ci, uint64_t *from_data_total, uint64_t *to_data_total, uint64_t *from_packet_total, uint64_t *to_packet_total, uint64_t *from_data_total_dropped, uint64_t *to_data_total_dropped, uint64_t *from_packet_total_dropped, uint64_t *to_packet_total_dropped);
+
+void ecm_db_classifier_generation_change(void);
+
+void ecm_db_connection_classifier_generation_change(struct ecm_db_connection_instance *ci);
+bool ecm_db_connection_classifier_generation_changed(struct ecm_db_connection_instance *ci);
+bool ecm_db_connection_classifier_peek_generation_changed(struct ecm_db_connection_instance *ci);
+
+ecm_db_direction_t ecm_db_connection_direction_get(struct ecm_db_connection_instance *ci);
+
+void ecm_db_mapping_port_count_get(struct ecm_db_mapping_instance *mi, int *tcp_from, int *tcp_to, int *udp_from, int *udp_to, int *from, int *to, int *tcp_nat_from, int *tcp_nat_to, int *udp_nat_from, int *udp_nat_to, int *nat_from, int *nat_to);
+
+void ecm_db_host_node_address_get(struct ecm_db_host_instance *hi, uint8_t *address_buffer);
+void ecm_db_host_address_get(struct ecm_db_host_instance *hi, ip_addr_t addr);
+bool ecm_db_host_on_link_get(struct ecm_db_host_instance *hi);
+
+void ecm_db_mapping_adress_get(struct ecm_db_mapping_instance *mi, ip_addr_t addr);
+int ecm_db_mapping_port_get(struct ecm_db_mapping_instance *mi);
+
+int ecm_db_connection_protocol_get(struct ecm_db_connection_instance *ci);
+bool ecm_db_connection_is_routed_get(struct ecm_db_connection_instance *ci);
+
+void ecm_db_connection_data_totals_update_tracked(struct ecm_db_connection_instance *ci, bool is_from, uint64_t size, uint64_t packets);
+void ecm_db_connection_data_totals_update_dropped(struct ecm_db_connection_instance *ci, bool is_from, uint64_t size, uint64_t packets);
+
+ecm_db_timer_group_t ecm_db_connection_timer_group_get(struct ecm_db_connection_instance *ci);
+void ecm_db_timer_group_entry_init(struct ecm_db_timer_group_entry *tge, ecm_db_timer_group_entry_callback_t fn, void *arg);
+void ecm_db_timer_group_entry_set(struct ecm_db_timer_group_entry *tge, ecm_db_timer_group_t tg);
+bool ecm_db_timer_group_entry_reset(struct ecm_db_timer_group_entry *tge, ecm_db_timer_group_t tg);
+bool ecm_db_timer_group_entry_remove(struct ecm_db_timer_group_entry *tge);
+bool ecm_db_timer_group_entry_touch(struct ecm_db_timer_group_entry *tge);
+
+int ecm_db_host_mapping_count_get(struct ecm_db_host_instance *hi);
+int ecm_db_mapping_connections_total_count_get(struct ecm_db_mapping_instance *mi);
+int ecm_db_iface_node_count_get(struct ecm_db_iface_instance *ii);
+int ecm_db_node_host_count_get(struct ecm_db_node_instance *ni);
+
+struct ecm_db_host_instance *ecm_db_mapping_host_get_and_ref(struct ecm_db_mapping_instance *mi);
+struct ecm_db_node_instance *ecm_db_mapping_node_get_and_ref(struct ecm_db_mapping_instance *mi);
+struct ecm_db_iface_instance *ecm_db_mapping_iface_get_and_ref(struct ecm_db_mapping_instance *mi);
+struct ecm_db_iface_instance *ecm_db_node_iface_get_and_ref(struct ecm_db_node_instance *ni);
+struct ecm_db_node_instance *ecm_db_host_node_get_and_ref(struct ecm_db_host_instance *hi);
+
+struct ecm_db_mapping_instance *ecm_db_connection_mapping_from_get_and_ref(struct ecm_db_connection_instance *ci);
+struct ecm_db_mapping_instance *ecm_db_connection_mapping_to_get_and_ref(struct ecm_db_connection_instance *ci);
+struct ecm_db_mapping_instance *ecm_db_connection_mapping_nat_from_get_and_ref(struct ecm_db_connection_instance *ci);
+struct ecm_db_mapping_instance *ecm_db_connection_mapping_nat_to_get_and_ref(struct ecm_db_connection_instance *ci);
+struct ecm_db_node_instance *ecm_db_connection_node_from_get_and_ref(struct ecm_db_connection_instance *ci);
+struct ecm_db_node_instance *ecm_db_connection_node_to_get_and_ref(struct ecm_db_connection_instance *ci);
+
+struct ecm_db_host_instance *ecm_db_host_find_and_ref(ip_addr_t address);
+
+struct ecm_db_mapping_instance *ecm_db_mapping_find_and_ref(ip_addr_t address, int port);
+
+struct ecm_db_connection_instance *ecm_db_connection_serial_find_and_ref(uint32_t serial);
+struct ecm_db_connection_instance *ecm_db_connection_find_and_ref(ip_addr_t host1_addr, ip_addr_t host2_addr, int protocol, int host1_port, int host2_port);
+
+void ecm_db_iface_ethernet_address_get(struct ecm_db_iface_instance *ii, uint8_t *address);
+void ecm_db_iface_pppoe_session_info_get(struct ecm_db_iface_instance *ii, struct ecm_db_interface_info_pppoe *pppoe_info);
+void ecm_db_iface_vlan_info_get(struct ecm_db_iface_instance *ii, struct ecm_db_interface_info_vlan *vlan_info);
+
+struct ecm_db_iface_instance *ecm_db_iface_find_and_ref_ethernet(uint8_t *address);
+struct ecm_db_iface_instance *ecm_db_iface_find_and_ref_lag(uint8_t *address);
+struct ecm_db_iface_instance *ecm_db_iface_find_and_ref_vlan(uint8_t *address, uint16_t vlan_tag);
+struct ecm_db_iface_instance *ecm_db_iface_find_and_ref_bridge(uint8_t *address);
+struct ecm_db_iface_instance *ecm_db_iface_find_and_ref_unknown(uint32_t os_specific_ident);
+struct ecm_db_iface_instance *ecm_db_iface_find_and_ref_pppoe(uint16_t pppoe_session_id, uint8_t *remote_mac);
+struct ecm_db_iface_instance *ecm_db_iface_find_and_ref_loopback(uint32_t os_specific_ident);
+struct ecm_db_iface_instance *ecm_db_iface_find_and_ref_ipsec_tunnel(uint32_t os_specific_ident);
+struct ecm_db_iface_instance *ecm_db_iface_find_and_ref_sit(ip_addr_t saddr, ip_addr_t daddr);
+struct ecm_db_iface_instance *ecm_db_iface_find_and_ref_tunipip6(ip_addr_t saddr, ip_addr_t daddr);
+
+struct ecm_db_node_instance *ecm_db_node_find_and_ref(uint8_t *address);
+
+void ecm_db_connection_from_interfaces_reset(struct ecm_db_connection_instance *ci, struct ecm_db_iface_instance *interfaces[], int32_t new_first);
+void ecm_db_connection_to_interfaces_reset(struct ecm_db_connection_instance *ci, struct ecm_db_iface_instance *interfaces[], int32_t new_first);
+void ecm_db_connection_from_nat_interfaces_reset(struct ecm_db_connection_instance *ci, struct ecm_db_iface_instance *interfaces[], int32_t new_first);
+void ecm_db_connection_to_nat_interfaces_reset(struct ecm_db_connection_instance *ci, struct ecm_db_iface_instance *interfaces[], int32_t new_first);
+
+void ecm_db_connection_from_interfaces_clear(struct ecm_db_connection_instance *ci);
+void ecm_db_connection_from_nat_interfaces_clear(struct ecm_db_connection_instance *ci);
+void ecm_db_connection_to_interfaces_clear(struct ecm_db_connection_instance *ci);
+void ecm_db_connection_to_nat_interfaces_clear(struct ecm_db_connection_instance *ci);
+
+bool ecm_db_connection_to_interfaces_set_check(struct ecm_db_connection_instance *ci);
+bool ecm_db_connection_from_interfaces_set_check(struct ecm_db_connection_instance *ci);
+bool ecm_db_connection_to_nat_interfaces_set_check(struct ecm_db_connection_instance *ci);
+bool ecm_db_connection_from_nat_interfaces_set_check(struct ecm_db_connection_instance *ci);
+
+int32_t ecm_db_connection_to_nat_interfaces_get_count(struct ecm_db_connection_instance *ci);
+int32_t ecm_db_connection_from_nat_interfaces_get_count(struct ecm_db_connection_instance *ci);
+int32_t ecm_db_connection_to_interfaces_get_count(struct ecm_db_connection_instance *ci);
+int32_t ecm_db_connection_from_interfaces_get_count(struct ecm_db_connection_instance *ci);
+
+int32_t ecm_db_connection_from_interfaces_get_and_ref(struct ecm_db_connection_instance *ci, struct ecm_db_iface_instance *interfaces[]);
+int32_t ecm_db_connection_to_interfaces_get_and_ref(struct ecm_db_connection_instance *ci, struct ecm_db_iface_instance *interfaces[]);
+int32_t ecm_db_connection_from_nat_interfaces_get_and_ref(struct ecm_db_connection_instance *ci, struct ecm_db_iface_instance *interfaces[]);
+int32_t ecm_db_connection_to_nat_interfaces_get_and_ref(struct ecm_db_connection_instance *ci, struct ecm_db_iface_instance *interfaces[]);
+void ecm_db_connection_interfaces_deref(struct ecm_db_iface_instance *interfaces[], int32_t first);
+
+struct ecm_db_connection_instance *ecm_db_mapping_connections_from_get_and_ref_first(struct ecm_db_mapping_instance *mi);
+struct ecm_db_connection_instance *ecm_db_mapping_connections_to_get_and_ref_first(struct ecm_db_mapping_instance *mi);
+struct ecm_db_connection_instance *ecm_db_connection_mapping_from_get_and_ref_next(struct ecm_db_connection_instance *ci);
+struct ecm_db_connection_instance *ecm_db_connection_mapping_to_get_and_ref_next(struct ecm_db_connection_instance *ci);
+
+struct ecm_db_connection_instance *ecm_db_mapping_connections_nat_from_get_and_ref_first(struct ecm_db_mapping_instance *mi);
+struct ecm_db_connection_instance *ecm_db_mapping_connections_nat_to_get_and_ref_first(struct ecm_db_mapping_instance *mi);
+struct ecm_db_connection_instance *ecm_db_connection_mapping_nat_from_get_and_ref_next(struct ecm_db_connection_instance *ci);
+struct ecm_db_connection_instance *ecm_db_connection_mapping_nat_to_get_and_ref_next(struct ecm_db_connection_instance *ci);
+
+struct ecm_db_connection_instance *ecm_db_iface_connections_from_get_and_ref_first(struct ecm_db_iface_instance *ii);
+struct ecm_db_connection_instance *ecm_db_iface_connections_to_get_and_ref_first(struct ecm_db_iface_instance *ii);
+struct ecm_db_connection_instance *ecm_db_connection_iface_from_get_and_ref_next(struct ecm_db_connection_instance *ci);
+struct ecm_db_connection_instance *ecm_db_connection_iface_to_get_and_ref_next(struct ecm_db_connection_instance *ci);
+
+struct ecm_db_connection_instance *ecm_db_iface_connections_nat_from_get_and_ref_first(struct ecm_db_iface_instance *ii);
+struct ecm_db_connection_instance *ecm_db_iface_connections_nat_to_get_and_ref_first(struct ecm_db_iface_instance *ii);
+struct ecm_db_connection_instance *ecm_db_connection_iface_nat_from_get_and_ref_next(struct ecm_db_connection_instance *ci);
+struct ecm_db_connection_instance *ecm_db_connection_iface_nat_to_get_and_ref_next(struct ecm_db_connection_instance *ci);
+
+struct ecm_db_node_instance *ecm_db_iface_nodes_get_and_ref_first(struct ecm_db_iface_instance *ii);
+struct ecm_db_host_instance *ecm_db_node_hosts_get_and_ref_first(struct ecm_db_node_instance *ni);
+
+struct ecm_db_node_instance *ecm_db_node_get_and_ref_next(struct ecm_db_node_instance *ni);
+struct ecm_db_host_instance *ecm_db_host_get_and_ref_next(struct ecm_db_host_instance *hi);
+
+struct ecm_classifier_default_instance *ecm_db_connection_classifier_default_get_and_ref(struct ecm_db_connection_instance *ci);
+
+void ecm_db_connection_classifier_assign(struct ecm_db_connection_instance *ci, struct ecm_classifier_instance *new_ca);
+int ecm_db_connection_classifier_assignments_get_and_ref(struct ecm_db_connection_instance *ci, struct ecm_classifier_instance *assignments[]);
+void ecm_db_connection_classifier_unassign(struct ecm_db_connection_instance *ci, struct ecm_classifier_instance *cci);
+void ecm_db_connection_assignments_release(int assignment_count, struct ecm_classifier_instance *assignments[]);
+struct ecm_classifier_instance *ecm_db_connection_assigned_classifier_find_and_ref(struct ecm_db_connection_instance *ci, ecm_classifier_type_t type);
+
+struct ecm_db_listener_instance *ecm_db_listener_alloc(void);
+struct ecm_db_connection_instance *ecm_db_connection_alloc(void);
+struct ecm_db_host_instance *ecm_db_host_alloc(void);
+struct ecm_db_mapping_instance *ecm_db_mapping_alloc(void);
+struct ecm_db_node_instance *ecm_db_node_alloc(void);
+struct ecm_db_iface_instance *ecm_db_iface_alloc(void);
+
+char *ecm_db_interface_type_to_string(ecm_db_iface_type_t type);
+
+void ecm_db_listener_add(struct ecm_db_listener_instance *li, ecm_db_iface_listener_added_callback_t iface_added, ecm_db_iface_listener_removed_callback_t iface_removed, ecm_db_node_listener_added_callback_t node_added, ecm_db_node_listener_removed_callback_t node_removed, ecm_db_host_listener_added_callback_t host_added, ecm_db_host_listener_removed_callback_t host_removed, ecm_db_mapping_listener_added_callback_t mapping_added, ecm_db_mapping_listener_removed_callback_t mapping_removed, ecm_db_connection_listener_added_callback_t connection_added, ecm_db_connection_listener_removed_callback_t connection_removed, ecm_db_listener_final_callback_t final, void *arg);
+
+void ecm_db_iface_add_ethernet(struct ecm_db_iface_instance *ii, uint8_t *address, char *name, int32_t mtu, int32_t interface_identifier, int32_t nss_interface_identifier, ecm_db_iface_final_callback_t final, void *arg);
+void ecm_db_iface_add_lag(struct ecm_db_iface_instance *ii, uint8_t *address, char *name, int32_t mtu, int32_t interface_identifier, int32_t nss_interface_identifier, ecm_db_iface_final_callback_t final, void *arg);
+void ecm_db_iface_add_bridge(struct ecm_db_iface_instance *ii, uint8_t *address, char *name, int32_t mtu, int32_t interface_identifier, int32_t nss_interface_identifier, ecm_db_iface_final_callback_t final, void *arg);
+void ecm_db_iface_add_vlan(struct ecm_db_iface_instance *ii, uint8_t *address, uint16_t vlan_tag, char *name, int32_t mtu, int32_t interface_identifier, int32_t nss_interface_identifier, ecm_db_iface_final_callback_t final, void *arg);
+void ecm_db_iface_add_pppoe(struct ecm_db_iface_instance *ii, uint16_t pppoe_session_id, uint8_t *remote_mac, char *name, int32_t mtu, int32_t interface_identifier, int32_t nss_interface_identifier, ecm_db_iface_final_callback_t final, void *arg);
+void ecm_db_iface_add_unknown(struct ecm_db_iface_instance *ii, uint32_t os_specific_ident, char *name, int32_t mtu, int32_t interface_identifier, int32_t nss_interface_identifier, ecm_db_iface_final_callback_t final, void *arg);
+void ecm_db_iface_add_loopback(struct ecm_db_iface_instance *ii, uint32_t os_specific_ident, char *name, int32_t mtu, int32_t interface_identifier, int32_t nss_interface_identifier, ecm_db_iface_final_callback_t final, void *arg);
+void ecm_db_iface_add_ipsec_tunnel(struct ecm_db_iface_instance *ii, uint32_t os_specific_ident, char *name, int32_t mtu, int32_t interface_identifier, int32_t nss_interface_identifier, ecm_db_iface_final_callback_t final, void *arg);
+void ecm_db_iface_add_sit(struct ecm_db_iface_instance *ii, struct ecm_db_interface_info_sit *type_info, char *name, int32_t mtu, int32_t interface_identifier, int32_t nss_interface_identifier, ecm_db_iface_final_callback_t final, void *arg);
+void ecm_db_iface_add_tunipip6(struct ecm_db_iface_instance *ii, struct ecm_db_interface_info_tunipip6 *type_info, char *name, int32_t mtu, int32_t interface_identifier, int32_t nss_interface_identifier, ecm_db_iface_final_callback_t final, void *arg);
+
+void ecm_db_node_add(struct ecm_db_node_instance *ni, struct ecm_db_iface_instance *ii, uint8_t *address, ecm_db_node_final_callback_t final, void *arg);
+void ecm_db_host_add(struct ecm_db_host_instance *hi, struct ecm_db_node_instance *ni, ip_addr_t address, bool on_link, ecm_db_host_final_callback_t final, void *arg);
+void ecm_db_mapping_add(struct ecm_db_mapping_instance *mi, struct ecm_db_host_instance *hi, int port, ecm_db_mapping_final_callback_t final, void *arg);
+void ecm_db_connection_add(struct ecm_db_connection_instance *ci, struct ecm_front_end_connection_instance *feci, struct ecm_classifier_default_instance *dci, struct ecm_db_mapping_instance *mapping_from, struct ecm_db_mapping_instance *mapping_to, struct ecm_db_mapping_instance *mapping_nat_from, struct ecm_db_mapping_instance *mapping_nat_to, int protocol, ecm_db_direction_t dir, ecm_db_connection_final_callback_t final, ecm_db_timer_group_t tg, bool is_routed, void *arg);
+
+void ecm_db_listener_ref(struct ecm_db_listener_instance *li);
+void ecm_db_connection_ref(struct ecm_db_connection_instance *ci);
+void ecm_db_host_ref(struct ecm_db_host_instance *hi);
+void ecm_db_mapping_ref(struct ecm_db_mapping_instance *mi);
+void ecm_db_iface_ref(struct ecm_db_iface_instance *ii);
+void ecm_db_node_ref(struct ecm_db_node_instance *ni);
+
+int ecm_db_listener_deref(struct ecm_db_listener_instance *li);
+int ecm_db_connection_deref(struct ecm_db_connection_instance *ci);
+int ecm_db_host_deref(struct ecm_db_host_instance *hi);
+int ecm_db_mapping_deref(struct ecm_db_mapping_instance *mi);
+int ecm_db_iface_deref(struct ecm_db_iface_instance *ii);
+int ecm_db_node_deref(struct ecm_db_node_instance *ni);
+