/* Copyright (c) 2013-2019, The Linux Foundation. All rights reserved. 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 Linux Foundation 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 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER 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 IPACM_Lan.h @brief This file implements the LAN iface definitions @Author Skylar Chang */ #ifndef IPACM_LAN_H #define IPACM_LAN_H #include #include #include "IPACM_CmdQueue.h" #include "IPACM_Iface.h" #include "IPACM_Routing.h" #include "IPACM_Filtering.h" #include "IPACM_Config.h" #include "IPACM_Conntrack_NATApp.h" #include "IPACM_Wan.h" #define IPA_WAN_DEFAULT_FILTER_RULE_HANDLES 1 #define IPA_PRIV_SUBNET_FILTER_RULE_HANDLES 3 #define IPA_NUM_ODU_ROUTE_RULES 2 #define MAX_WAN_UL_FILTER_RULES MAX_NUM_EXT_PROPS #define NUM_IPV4_ICMP_FLT_RULE 1 #define NUM_IPV6_ICMP_FLT_RULE 1 /* ndc bandwidth ipatetherstats */ /* out_bytes> out_pkts> in_bytes> in_pkts */ #define PIPE_STATS "%s %s %llu %llu %llu %llu" #define IPA_PIPE_STATS_FILE_NAME "/data/misc/ipa/tether_stats" /* store each lan-iface unicast routing rule and its handler*/ struct ipa_lan_rt_rule { ipa_ip_type ip; uint32_t v4_addr; uint32_t v4_addr_mask; uint32_t v6_addr[4]; uint32_t rt_rule_hdl[0]; }; /* Support multiple eth client */ typedef struct _eth_client_rt_hdl { uint32_t eth_rt_rule_hdl_v4; uint32_t eth_rt_rule_hdl_v6[IPV6_NUM_ADDR]; uint32_t eth_rt_rule_hdl_v6_wan[IPV6_NUM_ADDR]; }eth_client_rt_hdl; typedef struct _ipa_eth_client { uint8_t mac[IPA_MAC_ADDR_SIZE]; uint32_t v4_addr; uint32_t v6_addr[IPV6_NUM_ADDR][4]; uint32_t hdr_hdl_v4; uint32_t hdr_hdl_v6; bool route_rule_set_v4; int route_rule_set_v6; bool ipv4_set; int ipv6_set; bool ipv4_header_set; bool ipv6_header_set; /* used for pcie-modem */ uint32_t v6_rt_rule_id[IPV6_NUM_ADDR]; eth_client_rt_hdl eth_rt_hdl[0]; /* depends on number of tx properties */ }ipa_eth_client; /* lan iface */ class IPACM_Lan : public IPACM_Iface { public: IPACM_Lan(int iface_index); ~IPACM_Lan(); /* store lan's wan-up filter rule handlers */ uint32_t lan_wan_fl_rule_hdl[IPA_WAN_DEFAULT_FILTER_RULE_HANDLES]; /* store private-subnet filter rule handlers */ uint32_t private_fl_rule_hdl[IPA_MAX_PRIVATE_SUBNET_ENTRIES + IPA_MAX_MTU_ENTRIES]; /* LAN-iface's callback function */ void event_callback(ipa_cm_event_id event, void *data); virtual int handle_wan_up(ipa_ip_type ip_type); /* configure filter rule for wan_up event*/ virtual int handle_wan_up_ex(ipacm_ext_prop* ext_prop, ipa_ip_type iptype, uint8_t xlat_mux_id); /* delete filter rule for wan_down event*/ virtual int handle_wan_down(ipacm_wan_iface_type backhaul_mode); /* delete filter rule for wan_down event*/ virtual int handle_wan_down_v6(ipacm_wan_iface_type backhaul_mode); /* configure private subnet filter rules*/ virtual int handle_private_subnet(ipa_ip_type iptype); /* handle new_address event*/ int handle_addr_evt(ipacm_event_data_addr *data); int handle_addr_evt_odu_bridge(ipacm_event_data_addr* data); int handle_del_ipv6_addr(ipacm_event_data_all *data); static bool odu_up; /* install UL filter rule from Q6 */ virtual int handle_uplink_filter_rule(ipacm_ext_prop* prop, ipa_ip_type iptype, uint8_t xlat_mux_id); int handle_cradle_wan_mode_switch(bool is_wan_bridge_mode); int install_ipv4_icmp_flt_rule(); /* add header processing context and return handle to lan2lan controller */ int eth_bridge_add_hdr_proc_ctx(ipa_hdr_l2_type peer_l2_hdr_type, uint32_t *hdl); /* add routing rule and return handle to lan2lan controller */ int eth_bridge_add_rt_rule(uint8_t *mac, char *rt_tbl_name, uint32_t hdr_proc_ctx_hdl, ipa_hdr_l2_type peer_l2_hdr_type, ipa_ip_type iptype, uint32_t *rt_rule_hdl, int *rt_rule_count, int ep); /* modify routing rule*/ int eth_bridge_modify_rt_rule(uint8_t *mac, uint32_t hdr_proc_ctx_hdl, ipa_hdr_l2_type peer_l2_hdr_type, ipa_ip_type iptype, uint32_t *rt_rule_hdl, int rt_rule_count); /* add filtering rule and return handle to lan2lan controller */ int eth_bridge_add_flt_rule(uint8_t *mac, uint32_t rt_tbl_hdl, ipa_ip_type iptype, uint32_t *flt_rule_hdl); /* delete filtering rule */ int eth_bridge_del_flt_rule(uint32_t flt_rule_hdl, ipa_ip_type iptype); /* delete routing rule */ int eth_bridge_del_rt_rule(uint32_t rt_rule_hdl, ipa_ip_type iptype); /* delete header processing context */ int eth_bridge_del_hdr_proc_ctx(uint32_t hdr_proc_ctx_hdl); #ifdef FEATURE_L2TP /* add l2tp rt rule for l2tp client */ int add_l2tp_rt_rule(ipa_ip_type iptype, uint8_t *dst_mac, ipa_hdr_l2_type peer_l2_hdr_type, uint32_t l2tp_session_id, uint32_t vlan_id, uint8_t *vlan_client_mac, uint32_t *vlan_iface_ipv6_addr, uint32_t *vlan_client_ipv6_addr, uint32_t *first_pass_hdr_hdl, uint32_t *first_pass_hdr_proc_ctx_hdl, uint32_t *second_pass_hdr_hdl, int *num_rt_hdl, uint32_t *first_pass_rt_rule_hdl, uint32_t *second_pass_rt_rule_hdl); /* delete l2tp rt rule for l2tp client */ int del_l2tp_rt_rule(ipa_ip_type iptype, uint32_t first_pass_hdr_hdl, uint32_t first_pass_hdr_proc_ctx_hdl, uint32_t second_pass_hdr_hdl, int num_rt_hdl, uint32_t *first_pass_rt_rule_hdl, uint32_t *second_pass_rt_rule_hdl); /* add l2tp rt rule for non l2tp client */ int add_l2tp_rt_rule(ipa_ip_type iptype, uint8_t *dst_mac, uint32_t *hdr_proc_ctx_hdl, int *num_rt_hdl, uint32_t *rt_rule_hdl); /* delete l2tp rt rule for non l2tp client */ int del_l2tp_rt_rule(ipa_ip_type iptype, int num_rt_hdl, uint32_t *rt_rule_hdl); /* add l2tp flt rule on l2tp interface */ int add_l2tp_flt_rule(uint8_t *dst_mac, uint32_t *flt_rule_hdl); /* delete l2tp flt rule on l2tp interface */ int del_l2tp_flt_rule(uint32_t flt_rule_hdl); /* add l2tp flt rule on non l2tp interface */ int add_l2tp_flt_rule(ipa_ip_type iptype, uint8_t *dst_mac, uint32_t *vlan_client_ipv6_addr, uint32_t *first_pass_flt_rule_hdl, uint32_t *second_pass_flt_rule_hdl); /* delete l2tp flt rule on non l2tp interface */ int del_l2tp_flt_rule(ipa_ip_type iptype, uint32_t first_pass_flt_rule_hdl, uint32_t second_pass_flt_rule_hdl); #endif protected: int each_client_rt_rule_count[IPA_IP_MAX]; uint32_t eth_bridge_flt_rule_offset[IPA_IP_MAX]; /* mac address has to be provided for client related events */ void eth_bridge_post_event(ipa_cm_event_id evt, ipa_ip_type iptype, uint8_t *mac, uint32_t *ipv6_addr, char *iface_name, int ep); #ifdef FEATURE_L2TP /* check if the event is associated with vlan interface */ bool is_vlan_event(char *event_iface_name); /* check if the event is associated with l2tp interface */ bool is_l2tp_event(char *event_iface_name); /* check if the IPv6 address is unique local address */ bool is_unique_local_ipv6_addr(uint32_t *ipv6_addr); #endif virtual int add_dummy_private_subnet_flt_rule(ipa_ip_type iptype); int handle_private_subnet_android(ipa_ip_type iptype); int reset_to_dummy_flt_rule(ipa_ip_type iptype, uint32_t rule_hdl); virtual int modify_ipv6_prefix_flt_rule(uint32_t* prefix); virtual int install_ipv6_prefix_flt_rule(uint32_t* prefix); virtual void delete_ipv6_prefix_flt_rule(); int install_ipv6_icmp_flt_rule(); void post_del_self_evt(); /* handle tethering stats */ int handle_tethering_stats_event(ipa_get_data_stats_resp_msg_v01 *data); /* handle tethering client */ int handle_tethering_client(bool reset, ipacm_client_enum ipa_client); /* add tcp syn flt rule */ int add_tcp_syn_flt_rule(ipa_ip_type iptype); /* add tcp syn flt rule for l2tp interface*/ int add_tcp_syn_flt_rule_l2tp(ipa_ip_type inner_ip_type); /* store ipv4 UL filter rule handlers from Q6*/ uint32_t wan_ul_fl_rule_hdl_v4[MAX_WAN_UL_FILTER_RULES]; /* store ipv6 UL filter rule handlers from Q6*/ uint32_t wan_ul_fl_rule_hdl_v6[MAX_WAN_UL_FILTER_RULES]; uint32_t ipv4_icmp_flt_rule_hdl[NUM_IPV4_ICMP_FLT_RULE]; uint32_t ipv6_prefix_flt_rule_hdl[NUM_IPV6_PREFIX_FLT_RULE + NUM_IPV6_PREFIX_MTU_RULE]; uint32_t ipv6_icmp_flt_rule_hdl[NUM_IPV6_ICMP_FLT_RULE]; int num_wan_ul_fl_rule_v4; int num_wan_ul_fl_rule_v6; bool is_active; bool modem_ul_v4_set; uint8_t v4_mux_id; bool modem_ul_v6_set; uint8_t v6_mux_id; bool sta_ul_v4_set; bool sta_ul_v6_set; uint32_t if_ipv4_subnet; uint32_t ipv6_prefix[2]; bool is_upstream_set[IPA_IP_MAX]; bool is_downstream_set[IPA_IP_MAX]; _ipacm_offload_prefix prefix[IPA_IP_MAX]; uint32_t tcp_syn_flt_rule_hdl[IPA_IP_MAX]; private: int set_client_pipe(enum ipa_client_type client, uint32_t *pipe); int set_tether_client(wan_ioctl_set_tether_client_pipe *tether_client); int set_tether_client_wigig(wan_ioctl_set_tether_client_pipe *tether_client); /* get hdr proc ctx type given source and destination l2 hdr type */ ipa_hdr_proc_type eth_bridge_get_hdr_proc_type(ipa_hdr_l2_type t1, ipa_hdr_l2_type t2); /* get partial header (header template of hdr proc ctx) */ int eth_bridge_get_hdr_template_hdl(uint32_t* hdr_hdl); /* dynamically allocate lan iface's unicast routing rule structure */ bool is_mode_switch; /* indicate mode switch, need post internal up event */ int eth_client_len; ipa_eth_client *eth_client; int header_name_count; uint32_t num_eth_client; NatApp *Nat_App; int ipv6_set; uint32_t ODU_hdr_hdl_v4, ODU_hdr_hdl_v6; uint32_t *odu_route_rule_v4_hdl; uint32_t *odu_route_rule_v6_hdl; bool ipv4_header_set; bool ipv6_header_set; inline ipa_eth_client* get_client_memptr(ipa_eth_client *param, int cnt) { char *ret = ((char *)param) + (eth_client_len * cnt); return (ipa_eth_client *)ret; } inline int get_eth_client_index(uint8_t *mac_addr) { int cnt; int num_eth_client_tmp = num_eth_client; IPACMDBG_H("Passed MAC %02x:%02x:%02x:%02x:%02x:%02x\n", mac_addr[0], mac_addr[1], mac_addr[2], mac_addr[3], mac_addr[4], mac_addr[5]); for(cnt = 0; cnt < num_eth_client_tmp; cnt++) { IPACMDBG_H("stored MAC %02x:%02x:%02x:%02x:%02x:%02x\n", get_client_memptr(eth_client, cnt)->mac[0], get_client_memptr(eth_client, cnt)->mac[1], get_client_memptr(eth_client, cnt)->mac[2], get_client_memptr(eth_client, cnt)->mac[3], get_client_memptr(eth_client, cnt)->mac[4], get_client_memptr(eth_client, cnt)->mac[5]); if(memcmp(get_client_memptr(eth_client, cnt)->mac, mac_addr, sizeof(get_client_memptr(eth_client, cnt)->mac)) == 0) { IPACMDBG_H("Matched client index: %d\n", cnt); return cnt; } } return IPACM_INVALID_INDEX; } inline int delete_eth_rtrules(int clt_indx, ipa_ip_type iptype) { uint32_t tx_index; uint32_t rt_hdl; int num_v6; if(iptype == IPA_IP_v4) { for(tx_index = 0; tx_index < iface_query->num_tx_props; tx_index++) { if((tx_prop->tx[tx_index].ip == IPA_IP_v4) && (get_client_memptr(eth_client, clt_indx)->route_rule_set_v4==true)) /* for ipv4 */ { IPACMDBG_H("Delete client index %d ipv4 RT-rules for tx:%d\n",clt_indx,tx_index); rt_hdl = get_client_memptr(eth_client, clt_indx)->eth_rt_hdl[tx_index].eth_rt_rule_hdl_v4; if(m_routing.DeleteRoutingHdl(rt_hdl, IPA_IP_v4) == false) { return IPACM_FAILURE; } } } /* end of for loop */ /* clean the ipv4 RT rules for eth-client:clt_indx */ if(get_client_memptr(eth_client, clt_indx)->route_rule_set_v4==true) /* for ipv4 */ { get_client_memptr(eth_client, clt_indx)->route_rule_set_v4 = false; } } if(iptype == IPA_IP_v6) { for(tx_index = 0; tx_index < iface_query->num_tx_props; tx_index++) { if((tx_prop->tx[tx_index].ip == IPA_IP_v6) && (get_client_memptr(eth_client, clt_indx)->route_rule_set_v6 != 0)) /* for ipv6 */ { for(num_v6 =0;num_v6 < get_client_memptr(eth_client, clt_indx)->route_rule_set_v6;num_v6++) { /* send client-v6 delete to pcie modem only with global ipv6 with tx_index = 1 one time*/ if(is_global_ipv6_addr(get_client_memptr(eth_client, clt_indx)->v6_addr[num_v6]) && (IPACM_Wan::backhaul_mode == Q6_MHI_WAN) && (get_client_memptr(eth_client, clt_indx)->v6_rt_rule_id[num_v6] > 0)) { IPACMDBG_H("Delete client index %d ipv6 RT-rules for %d-st ipv6 for rule-id:%d\n", clt_indx,num_v6, get_client_memptr(eth_client, clt_indx)->v6_rt_rule_id[num_v6]); if (del_connection(clt_indx, num_v6)) { IPACMERR("PCIE filter rule deletion failed! (%d-client) %d v6-entry\n",clt_indx, num_v6); } } IPACMDBG_H("Delete client index %d ipv6 RT-rules for %d-st ipv6 for tx:%d\n", clt_indx,num_v6,tx_index); rt_hdl = get_client_memptr(eth_client, clt_indx)->eth_rt_hdl[tx_index].eth_rt_rule_hdl_v6[num_v6]; if(m_routing.DeleteRoutingHdl(rt_hdl, IPA_IP_v6) == false) { return IPACM_FAILURE; } rt_hdl = get_client_memptr(eth_client, clt_indx)->eth_rt_hdl[tx_index].eth_rt_rule_hdl_v6_wan[num_v6]; if(m_routing.DeleteRoutingHdl(rt_hdl, IPA_IP_v6) == false) { return IPACM_FAILURE; } } } } /* end of for loop */ /* clean the ipv6 RT rules for eth-client:clt_indx */ if(get_client_memptr(eth_client, clt_indx)->route_rule_set_v6 != 0) /* for ipv6 */ { get_client_memptr(eth_client, clt_indx)->route_rule_set_v6 = 0; } } return IPACM_SUCCESS; } /* handle eth client initial, construct full headers (tx property) */ int handle_eth_hdr_init(uint8_t *mac_addr); /* handle eth client ip-address */ int handle_eth_client_ipaddr(ipacm_event_data_all *data); /* handle eth client routing rule*/ int handle_eth_client_route_rule(uint8_t *mac_addr, ipa_ip_type iptype); /*handle eth client del mode*/ int handle_eth_client_down_evt(uint8_t *mac_addr); /* handle odu client initial, construct full headers (tx property) */ int handle_odu_hdr_init(uint8_t *mac_addr); /* handle odu default route rule configuration */ int handle_odu_route_add(); /* handle odu default route rule deletion */ int handle_odu_route_del(); /*handle lan iface down event*/ int handle_down_evt(); /*handle reset usb-client rt-rules */ int handle_lan_client_reset_rt(ipa_ip_type iptype); /* for pcie modem */ virtual int add_connection(int client_index, int v6_num); virtual int del_connection(int client_index, int v6_num); int construct_mtu_rule(struct ipa_flt_rule *rule, enum ipa_ip_type iptype, uint16_t mtu); }; #endif /* IPACM_LAN_H */