blob: 9c1bd5c89bfd18c3c59916ee2035ffe12a23370b [file] [log] [blame]
/*
**************************************************************************
* Copyright (c) 2014-2017 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.
**************************************************************************
*/
/*
* struct ecm_interface_route
* An ecm route supports either v4 or v6 routing information
*/
struct ecm_interface_route {
struct dst_entry *dst; /* Both ipv4 and v6 have a common dst entry. It is an overlay pointer of rtv4 or rtv6 */
union {
struct rtable *rtv4; /* IPv4 route */
struct rt6_info *rtv6; /* IPv6 route */
} rt;
bool v4_route; /* True when a v4 route, false when v6 */
};
/*
* Netdev Index value for a Loopback device
*/
#define ECM_INTERFACE_LOOPBACK_DEV_INDEX 1
/*
* IPSec Core and Interface Definition
*/
#define ECM_INTERFACE_IPSEC_DEFAULT_CORE 0x2
#define ECM_INTERFACE_IPSEC_CORE_OFFSET 24
#define ECM_INTERFACE_IPSEC_IF_NUM ((ECM_INTERFACE_IPSEC_DEFAULT_CORE << ECM_INTERFACE_IPSEC_CORE_OFFSET) | NSS_IPSEC_RULE_INTERFACE)
/*
* External defined functions
*/
extern struct net_device *bond_get_tx_dev(struct sk_buff *skb, uint8_t *src_mac,
uint8_t *dst_mac, void *src,
void *dst, uint16_t protocol,
struct net_device *bond_dev,
__be16 *layer4hdr);
bool ecm_interface_mac_addr_get_no_route(struct net_device *dev, ip_addr_t ip_addr, uint8_t *mac_addr);
bool ecm_interface_mac_addr_get(ip_addr_t addr, uint8_t *mac_addr, bool *on_link, ip_addr_t gw_addr);
bool ecm_interface_find_route_by_addr(ip_addr_t addr, struct ecm_interface_route *ecm_rt);
void ecm_interface_route_release(struct ecm_interface_route *rt);
#ifdef ECM_IPV6_ENABLE
void ecm_interface_send_neighbour_solicitation(struct net_device *dev, ip_addr_t addr);
#endif
void ecm_interface_send_arp_request(struct net_device *dest_dev, ip_addr_t dest_addr, bool on_link, ip_addr_t gw_addr);
struct neighbour *ecm_interface_ipv4_neigh_get(ip_addr_t addr);
#ifdef ECM_IPV6_ENABLE
struct neighbour *ecm_interface_ipv6_neigh_get(ip_addr_t addr);
#endif
bool ecm_interface_is_pptp(struct sk_buff *skb, const struct net_device *out);
bool ecm_interface_is_l2tp_packet_by_version(struct sk_buff *skb, const struct net_device *out, int ver);
bool ecm_interface_is_l2tp_pptp(struct sk_buff *skb, const struct net_device *out);
struct ecm_db_iface_instance *ecm_interface_establish_and_ref(struct ecm_front_end_connection_instance *feci, struct net_device *dev, struct sk_buff *skb);
#ifdef ECM_MULTICAST_ENABLE
int32_t ecm_interface_multicast_heirarchy_construct_routed(struct ecm_front_end_connection_instance *feci, struct ecm_db_iface_instance *interfaces, struct net_device *in_dev, ip_addr_t packet_src_addr, ip_addr_t packet_dest_addr, uint8_t maxvif, uint32_t *dst_dev, uint32_t *to_interface_first, bool mfc_update, __be16 *layer4hdr, struct sk_buff *skb);
int32_t ecm_interface_multicast_heirarchy_construct_bridged(struct ecm_front_end_connection_instance *feci, struct ecm_db_iface_instance *interfaces, struct net_device *br_dev, ip_addr_t src_addr, ip_addr_t dest_addr, uint8_t mc_max_dst, int32_t *mc_dst_dev, uint32_t *to_interface_first, uint8_t *src_node_addr, __be16 *layer4hdr, struct sk_buff *skb);
void ecm_interface_multicast_stats_update(struct ecm_db_connection_instance *ci, uint32_t from_tx_packets, uint32_t from_tx_bytes, uint32_t from_rx_packets, uint32_t from_rx_bytes, uint32_t to_tx_packets, uint32_t to_tx_bytes, uint32_t to_rx_packets, uint32_t to_rx_bytes);
bool ecm_interface_multicast_find_updates_to_iface_list(struct ecm_db_connection_instance *ci, struct ecm_multicast_if_update *, uint32_t flags, bool is_br_snooper, uint32_t *dst_dev, uint32_t max_to_dev);
bool ecm_interface_multicast_check_for_br_dev(uint32_t dest_if[], uint8_t max_if);
int32_t ecm_interface_multicast_check_for_src_ifindex(int32_t mc_if_index[], int32_t max_if_index, int32_t if_num);
int32_t ecm_interface_multicast_from_heirarchy_construct(struct ecm_front_end_connection_instance *feci,
struct ecm_db_iface_instance *interfaces[],
ip_addr_t packet_src_addr, ip_addr_t packet_dest_addr,
int ip_version, int packet_protocol,
struct net_device *given_dest_dev, bool is_routed,
struct net_device *given_src_dev,
uint8_t *dest_node_addr, uint8_t *src_node_addr,
__be16 *layer4hdr, struct sk_buff *skb);
#endif
int32_t ecm_interface_heirarchy_construct(struct ecm_front_end_connection_instance *feci,
struct ecm_db_iface_instance *interfaces[],
struct net_device *const_if, struct net_device *other_if,
ip_addr_t lookup_src_addr,
ip_addr_t lookup_dest_addr,
ip_addr_t real_dest_addr,
int ip_version, int packet_protocol,
struct net_device *given_dest_dev,
bool is_routed, struct net_device *given_src_dev,
uint8_t *dest_node_addr, uint8_t *src_node_addr,
__be16 *layer4hdr, struct sk_buff *skb);
void ecm_interface_stats_update(struct ecm_db_connection_instance *ci, uint32_t from_tx_packets, uint32_t from_tx_bytes, uint32_t from_rx_packets, uint32_t from_rx_bytes, uint32_t to_tx_packets, uint32_t to_tx_bytes, uint32_t to_rx_packets, uint32_t to_rx_bytes);
struct net_device *ecm_interface_dev_find_by_addr(ip_addr_t addr, bool *from_local_addr);
void ecm_interface_stats_update(struct ecm_db_connection_instance *ci, uint32_t from_tx_packets, uint32_t from_tx_bytes, uint32_t from_rx_packets, uint32_t from_rx_bytes, uint32_t to_tx_packets, uint32_t to_tx_bytes, uint32_t to_rx_packets, uint32_t to_rx_bytes);
struct net_device *ecm_interface_get_and_hold_dev_master(struct net_device *dev);
void ecm_interface_dev_regenerate_connections(struct net_device *dev);
struct net_device *ecm_interface_dev_find_by_local_addr(ip_addr_t addr);
bool ecm_interface_find_gateway(ip_addr_t addr, ip_addr_t gw_addr);
void ecm_interface_dev_defunct_connections(struct net_device *dev);
void ecm_interface_node_connections_defunct(uint8_t *mac);