diff --git a/openair-cn/SGI/COPYING b/openair-cn/SGI/COPYING deleted file mode 100644 index 94a9ed024d..0000000000 --- a/openair-cn/SGI/COPYING +++ /dev/null @@ -1,674 +0,0 @@ - GNU GENERAL PUBLIC LICENSE - Version 3, 29 June 2007 - - Copyright (C) 2007 Free Software Foundation, Inc. - Everyone is permitted to copy and distribute verbatim copies - of this license document, but changing it is not allowed. - - Preamble - - The GNU General Public License is a free, copyleft license for -software and other kinds of works. - - The licenses for most software and other practical works are designed -to take away your freedom to share and change the works. By contrast, -the GNU General Public License is intended to guarantee your freedom to -share and change all versions of a program--to make sure it remains free -software for all its users. 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Interpretation of Sections 15 and 16. - - If the disclaimer of warranty and limitation of liability provided -above cannot be given local legal effect according to their terms, -reviewing courts shall apply local law that most closely approximates -an absolute waiver of all civil liability in connection with the -Program, unless a warranty or assumption of liability accompanies a -copy of the Program in return for a fee. - - END OF TERMS AND CONDITIONS - - How to Apply These Terms to Your New Programs - - If you develop a new program, and you want it to be of the greatest -possible use to the public, the best way to achieve this is to make it -free software which everyone can redistribute and change under these terms. - - To do so, attach the following notices to the program. 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If not, see . - -Also add information on how to contact you by electronic and paper mail. - - If the program does terminal interaction, make it output a short -notice like this when it starts in an interactive mode: - - Copyright (C) - This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. - This is free software, and you are welcome to redistribute it - under certain conditions; type `show c' for details. - -The hypothetical commands `show w' and `show c' should show the appropriate -parts of the General Public License. Of course, your program's commands -might be different; for a GUI interface, you would use an "about box". - - You should also get your employer (if you work as a programmer) or school, -if any, to sign a "copyright disclaimer" for the program, if necessary. -For more information on this, and how to apply and follow the GNU GPL, see -. - - The GNU General Public License does not permit incorporating your program -into proprietary programs. If your program is a subroutine library, you -may consider it more useful to permit linking proprietary applications with -the library. If this is what you want to do, use the GNU Lesser General -Public License instead of this License. But first, please read -. diff --git a/openair-cn/SGI/Makefile.am b/openair-cn/SGI/Makefile.am deleted file mode 100644 index 9a386ed1d5..0000000000 --- a/openair-cn/SGI/Makefile.am +++ /dev/null @@ -1,64 +0,0 @@ -################################################################################ -# OpenAirInterface -# Copyright(c) 1999 - 2014 Eurecom -# -# OpenAirInterface is free software: you can redistribute it and/or modify -# it under the terms of the GNU General Public License as published by -# the Free Software Foundation, either version 3 of the License, or -# (at your option) any later version. -# -# -# OpenAirInterface is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. -# -# You should have received a copy of the GNU General Public License -# along with OpenAirInterface.The full GNU General Public License is -# included in this distribution in the file called "COPYING". If not, -# see . -# -# Contact Information -# OpenAirInterface Admin: openair_admin@eurecom.fr -# OpenAirInterface Tech : openair_tech@eurecom.fr -# OpenAirInterface Dev : openair4g-devel@eurecom.fr -# -# Address : Eurecom, Compus SophiaTech 450, route des chappes, 06451 Biot, France. -# -################################################################################ -AM_CFLAGS = @ADD_CFLAGS@ \ - -I$(top_srcdir)/COMMON \ - -I$(top_srcdir)/SGW-LITE \ - -I$(top_srcdir)/UTILS \ - -I$(top_srcdir)/UTILS/HASHTABLE \ - -I$(top_srcdir)/NAS/EURECOM-NAS/src/api/network \ - -I$(top_srcdir)/NAS/EURECOM-NAS/src/include \ - -I$(top_srcdir)/NAS/EURECOM-NAS/src/ies \ - -I$(top_srcdir)/NAS/EURECOM-NAS/src/emm/msg \ - -I$(top_srcdir)/NAS/EURECOM-NAS/src/esm/msg \ - -I$(top_srcdir)/NAS/EURECOM-NAS/src/util \ - -I$(top_srcdir)/GTPV1-U \ - -I$(top_srcdir)/INTERTASK_INTERFACE - -noinst_LTLIBRARIES = libsgi.la -libsgi_la_LDFLAGS = -all-static -libsgi_la_SOURCES = \ - sgi_task.c sgi.h \ - sgi_socket.c \ - sgi_egress.c \ - sgi_util.c - -if ENABLE_USE_PCAP_FOR_SGI - libsgi_la_SOURCES += sgi_pcap.c \ - /usr/lib/libpcap.a - -endif - - -if ENABLE_USE_NETFILTER_FOR_SGI - libsgi_la_SOURCES += sgi_nf.c \ - /usr/lib/libnetfilter_queue.a \ - /usr/lib/libnfnetlink.la -endif - - diff --git a/openair-cn/SGI/sgi.h b/openair-cn/SGI/sgi.h deleted file mode 100755 index c0e4ebda49..0000000000 --- a/openair-cn/SGI/sgi.h +++ /dev/null @@ -1,301 +0,0 @@ -/******************************************************************************* - OpenAirInterface - Copyright(c) 1999 - 2014 Eurecom - - OpenAirInterface is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - - OpenAirInterface is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with OpenAirInterface.The full GNU General Public License is - included in this distribution in the file called "COPYING". If not, - see . - - Contact Information - OpenAirInterface Admin: openair_admin@eurecom.fr - OpenAirInterface Tech : openair_tech@eurecom.fr - OpenAirInterface Dev : openair4g-devel@eurecom.fr - - Address : Eurecom, Compus SophiaTech 450, route des chappes, 06451 Biot, France. - - *******************************************************************************/ -/*! \file sgi.h -* \brief -* \author Lionel Gauthier -* \company Eurecom -* \email: lionel.gauthier@eurecom.fr -*/ -#ifndef SGI_H_ -#define SGI_H_ - -#include -#include -#include -#include - -#ifdef ENABLE_USE_NETFILTER_FOR_SGI -#warning "ENABLE_USE_NETFILTER_FOR_SGI" -#define SGI_SOCKET_RAW 1 -#define SGI_SOCKET_BIND_TO_IF 1 -#undef SGI_MARKING -#undef SGI_PACKET_RX_RING -#undef SGI_SOCKET_UDP -#else -#warning "DISABLE_USE_NETFILTER_FOR_SGI" -//#define SGI_SOCKET_RAW 1 -#undef SGI_SOCKET_RAW -#define SGI_SOCKET_DGRAM 1 -#define SGI_SOCKET_BIND_TO_IF 1 -#undef SGI_PACKET_RX_RING -#undef SGI_MARKING -#undef SGI_SOCKET_UDP -#endif - -#ifdef ENABLE_USE_PCAP_FOR_SGI -#include -#endif - -//#define SGI_TEST -// Packets include a ethernet header if SGI_PF_PACKET is defined -#define SGI_PF_PACKET - -#include "common_types.h" -#include "hashtable.h" -#include "obj_hashtable.h" -#include "sgw_lite_ie_defs.h" -#include "ip_forward_messages_types.h" - -# define SGI_IF_DEBUG(x, args...) -# define SGI_IF_ERROR(x, args...) -# define SGI_IF_WARNING(x, args...) -//----------------------------------------------------------------------------- -#ifndef SGI_IF_DEBUG -# define SGI_IF_DEBUG(x, args...) do { fprintf(stdout, "[SGI_IF][D]"x, ##args); } \ - while(0) -#endif -#ifndef SGI_IF_ERROR -# define SGI_IF_ERROR(x, args...) do { fprintf(stderr, "[SGI_IF][E]"x, ##args); } \ - while(0) -#endif -#ifndef SGI_IF_WARNING -# define SGI_IF_WARNING(x, args...) do { fprintf(stderr, "[SGI_IF][W]"x, ##args); } \ - while(0) -#endif - -// refer to 3GPP TS 23.203 V10.6.0 (2012-03) page 33 -//#define MAX_DEFINED_QCI 0 -#define MAX_DEFINED_QCI 9 -#define SGI_MIN_EPS_BEARER_ID 5 -#define SGI_MAX_SERVED_USERS_PER_PGW 1024 -#define SGI_MAX_EPS_BEARERS_PER_USER 11 -#define MAX_DEFINED_IPV6_ADDRESSES_PER_UE 16 - - -#define NIP6ADDR(addr) \ - ntohs((addr)->s6_addr16[0]), \ - ntohs((addr)->s6_addr16[1]), \ - ntohs((addr)->s6_addr16[2]), \ - ntohs((addr)->s6_addr16[3]), \ - ntohs((addr)->s6_addr16[4]), \ - ntohs((addr)->s6_addr16[5]), \ - ntohs((addr)->s6_addr16[6]), \ - ntohs((addr)->s6_addr16[7]) - -#define NIPADDR(addr) \ - (uint8_t)(addr & 0x000000FF), \ - (uint8_t)((addr & 0x0000FF00) >> 8), \ - (uint8_t)((addr & 0x00FF0000) >> 16), \ - (uint8_t)((addr & 0xFF000000) >> 24) - -#define NMACADDR(addr) \ - (uint8_t)(addr[0]), \ - (uint8_t)(addr[1]), \ - (uint8_t)(addr[2]), \ - (uint8_t)(addr[3]), \ - (uint8_t)(addr[4]), \ - (uint8_t)(addr[5]) -#ifdef VLAN8021Q -typedef struct vlan_tag_s { - uint16_t vlan_tpid; /* ETH_P_8021Q */ - uint16_t vlan_tci; /* VLAN TCI */ -} vlan_tag_t __attribute__ ((__packed__)); - -typedef struct ether_header_8021q_s { - u_int8_t ether_dhost[ETH_ALEN]; /* destination eth addr */ - u_int8_t ether_shost[ETH_ALEN]; /* source ether addr */ - vlan_tag_t ether_vlan8021q; - u_int16_t ether_type; /* packet type ID field */ -} ether_header_8021q_t __attribute__ ((__packed__)); -#endif - -typedef struct arphdr_s { - __be16 ar_hrd; /* format of hardware address */ - __be16 ar_pro; /* format of protocol address */ - unsigned char ar_hln; /* length of hardware address */ - unsigned char ar_pln; /* length of protocol address */ - __be16 ar_op; /* ARP opcode (command) */ - /* - * Ethernet looks like this : This bit is variable sized however... - */ - unsigned char ar_sha[ETH_ALEN]; /* sender hardware address */ - unsigned char ar_sip[4]; /* sender IP address */ - unsigned char ar_tha[ETH_ALEN]; /* target hardware address */ - unsigned char ar_tip[4]; /* target IP address */ - -} arphdr_t; - -typedef struct sgi_teid_mapping_s { - int is_outgoing_ipv4_packet_seen; - int is_outgoing_ipv6_packet_seen; - Teid_t enb_S1U_teid; ///< dest tunnel identifier - qci_t qci; - ebi_t eps_bearer_id; ///< EPS bearer identifier - char hw_addrlen; -#ifdef SGI_UE_ETHER_TRAFFIC - char ue_mac_addr[8]; -#endif - struct in6_addr in6_addr_captured[MAX_DEFINED_IPV6_ADDRESSES_PER_UE]; - struct in_addr in_add_captured; -} sgi_teid_mapping_t; - - -// Main goal is to do an association IP address <-> MAC address -// may be usefull for netfilter that does not capture MAC address -// if not set on certain hook points (table,path). -typedef struct sgi_addr_mapping_s { - int is_outgoing_packet_seen; - ebi_t eps_bearer_id; ///< EPS default bearer identifier, (really ?) - Teid_t enb_S1U_teid; ///< dest tunnel identifier, for default bearer - Teid_t sgw_S1U_teid; ///< dest tunnel identifier, for default bearer -#ifdef SGI_UE_ETHER_TRAFFIC - char ue_mac_addr[ETH_ALEN]; -#endif -} sgi_addr_mapping_t; - - - - -typedef struct sgi_data_s { - int sd[SGI_MAX_EPS_BEARERS_PER_USER]; - unsigned int if_index[SGI_MAX_EPS_BEARERS_PER_USER]; - int sd6; - char *interface_name; - int interface_name_len; - int interface_index; -#ifndef SGI_UE_ETHER_TRAFFIC - char interface_hw_address[ETH_ALEN]; -#ifdef VLAN8021Q - struct ether_header_8021q_s eh; -#else - struct ether_header eh; -#endif -#endif - uint32_t ipv4_addr; - hash_table_t *teid_mapping; - hash_table_t *addr_v4_mapping; - obj_hash_table_t *addr_v6_mapping; - pthread_t capture_on_sgi_if_thread; - pthread_mutex_t thread_started_mutex; - int thread_started; - - void *sock_mmap_ring; - struct iovec *malloc_ring; - - int hw_address_of_router_captured; - uint32_t local_addr_v4_4_hw_address_router_capture; - uint32_t ipv4_addr_of_router; - char hss_associated; - - -#ifdef ENABLE_USE_PCAP_FOR_SGI - //brief PCAP descriptor for capturing packets on SGI interface. - pcap_t * pcap_descr; -#endif -#define SGI_BUFFER_RECV_LEN 3000 - unsigned char recv_buffer[sizeof(struct ether_header) + SGI_BUFFER_RECV_LEN][SGI_MAX_EPS_BEARERS_PER_USER]; - -} sgi_data_t; - - -typedef struct sgi_read_thread_args_s { - sgi_data_t *sgi_data; - int socket_index; -} sgi_read_thread_args_t; -//----------------------------------------------------------------------------- - -#include "mme_config.h" - - -#define SGI_MAX_EPS_BEARERS (SGI_MAX_SERVED_USERS_PER_PGW*SGI_MAX_EPS_BEARERS_PER_USER) - - - -//----------------------------------------------------------------------------- -// sgi_task.c -//----------------------------------------------------------------------------- -#include "spgw_config.h" -int sgi_init(const pgw_config_t *pgw_config_p); -char* sgi_status_2_str(SGIStatus_t statusP); - -//----------------------------------------------------------------------------- -// sgi_nf.c -//----------------------------------------------------------------------------- -#ifdef ENABLE_USE_NETFILTER_FOR_SGI -void* sgi_nf_fw_2_gtpv1u_thread(void *args_p); -#endif - -//----------------------------------------------------------------------------- -// sgi_pcap.c -//----------------------------------------------------------------------------- -#ifdef ENABLE_USE_PCAP_FOR_SGI -# define SGI_PCAPMAXBYTES2CAPTURE 65535 -# define SGI_PCAPTIMEDELAYKERNEL2USERSPACE 1000 - -/*! \fn void* sgi_pcap_loop(void*) -* \brief -* \param[in] devname The name of the device (ex "eth1") that will be listened for capturing packets. -* \param[in] iif The interface identifier that will be listened for capturing packets. -*/ -void* sgi_pcap_fw_2_gtpv1u_thread(void*); -#endif -//----------------------------------------------------------------------------- -// sgi_util.c -//----------------------------------------------------------------------------- -void sgi_print_hex_octets(unsigned char* dataP, unsigned long sizeP); -char* sgi_status_2_str (SGIStatus_t statusP); -char* sgi_arpopcode_2_str (unsigned short int opcodeP); -unsigned short in_cksum(unsigned short *addr, int len); -void sgi_send_arp_request(sgi_data_t *sgi_dataP, char* dst_ip_addrP); - -//----------------------------------------------------------------------------- -// sgi_socket.c -//----------------------------------------------------------------------------- -int sgi_create_sockets(sgi_data_t *sgi_data_p); -int sgi_send_data(uint8_t *buffer, uint32_t length, sgi_data_t *sgi_dataP, Teid_t originating_sgw_S1u_teidP); -int sgi_dgram_send_data(uint8_t *buffer_pP, uint32_t length, sgi_data_t *sgi_data_pP, Teid_t originating_sgw_S1u_teidP); - -#ifdef SGI_TEST -unsigned short in_cksum(unsigned short *addr, int len); -void sgi_test_send_ping(sgi_data_t *sgi_dataP, uint32_t markP, uint64_t src_mac_addrP, uint64_t dst_mac_addrP, char* src_ip_addrP, char* dst_ip_addrP); -#endif -#ifdef ENABLE_USE_RAW_SOCKET_FOR_SGI -void sgi_sock_raw_cleanup_handler(void *args_p); -void* sgi_sock_raw_fw_2_gtpv1u_thread(void* args_p); -#endif - -//----------------------------------------------------------------------------- -// sgi_egress.c -//----------------------------------------------------------------------------- -void sgi_forward_ip_packet(sgi_data_t *sgi_dataP, struct ether_header *ehP, int packet_sizeP, sgi_addr_mapping_t *addr_mappingP); -#ifdef ENABLE_USE_RAW_SOCKET_FOR_SGI -void sgi_process_raw_packet(sgi_data_t *sgi_dataP, unsigned char* dataP, int packet_sizeP); -#endif -void sgi_process_dgram_packet(sgi_data_t *sgi_dataP, unsigned char* dataP, int packet_sizeP); -#endif /* SGI_H_ */ diff --git a/openair-cn/SGI/sgi_egress.c b/openair-cn/SGI/sgi_egress.c deleted file mode 100755 index 526c088bdd..0000000000 --- a/openair-cn/SGI/sgi_egress.c +++ /dev/null @@ -1,427 +0,0 @@ -/******************************************************************************* - OpenAirInterface - Copyright(c) 1999 - 2014 Eurecom - - OpenAirInterface is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - - OpenAirInterface is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with OpenAirInterface.The full GNU General Public License is - included in this distribution in the file called "COPYING". If not, - see . - - Contact Information - OpenAirInterface Admin: openair_admin@eurecom.fr - OpenAirInterface Tech : openair_tech@eurecom.fr - OpenAirInterface Dev : openair4g-devel@eurecom.fr - - Address : Eurecom, Compus SophiaTech 450, route des chappes, 06451 Biot, France. - - *******************************************************************************/ -/*! \file sgi_egress.c -* \brief -* \author Lionel Gauthier -* \company Eurecom -* \email: lionel.gauthier@eurecom.fr -*/ -#include -#include -#include -#include - - -#include "sgi.h" -#include "gtpv1u.h" -#include "intertask_interface.h" -#include "assertions.h" - -#include -#include -#include - - -struct ipv6hdr { - __u8 priority:4, - version:4; - __u8 flow_lbl[3]; - - __be16 payload_len; - __u8 nexthdr; - __u8 hop_limit; - - struct in6_addr saddr; - struct in6_addr daddr; -}; - -#ifdef ENABLE_USE_RAW_SOCKET_FOR_SGI - -#ifdef SGI_UE_ETHER_TRAFFIC -void sgi_process_raw_packet(sgi_data_t *sgi_data_pP, unsigned char* data_pP, int packet_sizeP) -{ - Gtpv1uTunnelDataReq *gtpv1u_tunnel_data_req_p = NULL; - MessageDef *message_p = NULL; - unsigned char *message_payload_p = NULL ; - struct ether_header *eh_p = (struct ether_header *) data_pP; - struct arphdr *arph_p = NULL; - struct iphdr *iph_p = NULL; - struct ipv6hdr *ip6h_p = NULL; - //struct arphdr *rarph = NULL; - //unsigned char *rarp_ptr = NULL; - //unsigned char *sha = NULL; /* Sender hardware address. */ - //unsigned char *tha = NULL; /* Target hardware address. */ - sgi_addr_mapping_t *addr_mapping_p = NULL; - //__be32 sip, tip; /* Sender, target IP address. */ - struct in6_addr dest6_addr; - u_int32_t dest4_addr; - struct in_addr in_dest_addr; - - - switch (htons(eh_p->ether_type)) { - - //******************* - case ETHERTYPE_IP: - //******************* - iph_p = (struct iphdr *) (data_pP + sizeof(struct ether_header)); - dest4_addr = iph_p->daddr; - - if (hashtable_get(sgi_data_pP->addr_v4_mapping, dest4_addr, (void**)&addr_mapping_p) == HASH_TABLE_OK) { - memcpy(eh_p->ether_dhost, addr_mapping_p->ue_mac_addr, ETH_ALEN); - //SGI_IF_DEBUG("--------------------------------------------------------------\n%s :\n", __FUNCTION__); - //sgi_print_hex_octets(data_pP, packet_sizeP); - - } else { - if (sgi_data_pP->ipv4_addr == dest4_addr) { - //SGI_IF_DEBUG("%s Dropping incoming egress IPV4 packet not UE IP flow\n", __FUNCTION__); - return; - } else { - in_dest_addr.s_addr = dest4_addr; - //SGI_IF_WARNING("%s Dropping incoming egress IPV4 packet, IPV4 dest %s not found \n", __FUNCTION__, inet_ntoa(in_dest_addr)); - return; - } - } - - break; - - - //******************* - case ETHERTYPE_IPV6: - //******************* - ip6h_p = (struct ipv6hdr *) (data_pP + sizeof(struct ether_header)); - memcpy(dest6_addr.__in6_u.__u6_addr8, ip6h_p->daddr.__in6_u.__u6_addr8, 16); - - if (obj_hashtable_get(sgi_data_pP->addr_v6_mapping, (void*)&dest6_addr, sizeof(struct in6_addr), (void**)&addr_mapping_p) == HASH_TABLE_OK) { - memcpy(eh_p->ether_dhost, addr_mapping_p->ue_mac_addr, ETH_ALEN); - //SGI_IF_DEBUG("--------------------------------------------------------------\n%s :\n", __FUNCTION__); - //sgi_print_hex_octets(data_pP, packet_sizeP); - } else { - //SGI_IF_WARNING("%s Dropping incoming egress IPV6 packet, IPV6 dest %X:%X:%X:%X:%X:%X:%X:%X not found \n", __FUNCTION__, NIP6ADDR(&dest6_addr)); - return; - } - - break; - - - //******************* - case ETHERTYPE_REVARP: - //******************* - SGI_IF_ERROR("%s UNHANDLED ETHERTYPE_REVARP of incoming egress packet\n", __FUNCTION__); - return; - break; - - - //******************* - case ETHERTYPE_ARP: - //******************* - SGI_IF_DEBUG("%s HANDLED ETHERTYPE_ARP of incoming egress packet\n", __FUNCTION__); - arph_p = (struct arphdr *) (data_pP + sizeof(struct ether_header)); -#ifdef SGI_UE_ETHER_TRAFFIC - // The entry should be here but all signalling tied with RRC procedures not finished so - // a data packet can arrive before the MODIFY_BEARER REQUEST - // get " unsigned char __ar_tip[4]; /* Target IP address. */" (from /usr/include/net/if_apr.h line 68) - memcpy(&dest4_addr, &((unsigned char*)(&arph_p[1]))[ETH_ALEN*2+4], 4); - SGI_IF_DEBUG("%s ARP OPCODE %s TARGET IP %d.%d.%d.%d\n", __FUNCTION__, sgi_arpopcode_2_str(ntohl(arph_p->ar_op)), NIPADDR(dest4_addr)); - - if (hashtable_get(sgi_data_pP->addr_v4_mapping, dest4_addr, (void**)&addr_mapping_p) == HASH_TABLE_OK) { - memcpy(eh_p->ether_dhost, addr_mapping_p->ue_mac_addr, ETH_ALEN); - } else { - if (sgi_data_pP->ipv4_addr == dest4_addr) { - //SGI_IF_DEBUG("%s Dropping incoming egress IPV4 packet not UE IP flow\n", __FUNCTION__); - return; - } else { - in_dest_addr.s_addr = dest4_addr; - //SGI_IF_WARNING("%s Dropping incoming egress IPV4 packet, IPV4 dest %s not found \n", __FUNCTION__, inet_ntoa(in_dest_addr)); - return; - } - } - -#else -#endif - break; - // rarph = (struct arphdr *)(data_pP + sizeof(struct ether_header)); - // - // // If it's not Ethernet, delete it. - // if (rarph->ar_pro != htons(ETH_P_IP)) { - // SGI_IF_ERROR("%s ARP PACKET PROTOCOL OG INCOMING PACKET IS NOT ETHERNET\n",__FUNCTION__); - // break; - // } - // rarp_ptr = (unsigned char *) (rarph + 1); - // sha = rarp_ptr; - // rarp_ptr += ETH_ALEN; - // memcpy(&sip, rarp_ptr, 4); - // rarp_ptr += 4; - // tha = rarp_ptr; - // rarp_ptr += ETH_ALEN; - // memcpy(&tip, rarp_ptr, 4); - // SGI_IF_DEBUG("%s ARP DEST IP transport IP = %d.%d.%d.%d\n",__FUNCTION__, NIPADDR(tip)); - // // TO DO IF NECESSARY - // break; - // - - default: - SGI_IF_ERROR("%s UNHANDLED ether type %d of incoming egress packet\n", __FUNCTION__, eh_p->ether_type); - return; - } - - message_p = itti_alloc_new_message(TASK_FW_IP, GTPV1U_TUNNEL_DATA_REQ); - - if (message_p == NULL) { - SGI_IF_ERROR("%s OUT OF MEMORY DROP EGRESS PACKET\n", __FUNCTION__); - return; - } - - message_payload_p = itti_malloc(TASK_FW_IP, TASK_GTPV1_U, packet_sizeP); - - if (message_payload_p == NULL) { - SGI_IF_ERROR("%s OUT OF MEMORY DROP EGRESS PACKET\n", __FUNCTION__); - return; - } - - memcpy(message_payload_p, data_pP, packet_sizeP); - - gtpv1u_tunnel_data_req_p = &message_p->ittiMsg.gtpv1uTunnelDataReq; - //LG HACK gtpv1u_tunnel_data_req_p->S1u_enb_teid = addr_mapping_p->enb_S1U_teid; -#warning forced S1u_enb_teid to 1 for testing, waiting for MODIFY_BEARER REQUEST - gtpv1u_tunnel_data_req_p->S1u_enb_teid = 1; - gtpv1u_tunnel_data_req_p->local_S1u_teid = addr_mapping_p->sgw_S1U_teid; - gtpv1u_tunnel_data_req_p->length = packet_sizeP; - gtpv1u_tunnel_data_req_p->buffer = message_payload_p; - SGI_IF_DEBUG("%s ETHER send GTPV1U_TUNNEL_DATA_REQ to GTPV1U S1u_enb_teid %u local_S1u_teid %u size %u\n", __FUNCTION__, gtpv1u_tunnel_data_req_p->S1u_enb_teid, - gtpv1u_tunnel_data_req_p->local_S1u_teid, packet_sizeP); - - itti_send_msg_to_task(TASK_GTPV1_U, INSTANCE_DEFAULT, message_p); - -} -#else -void sgi_process_raw_packet(sgi_data_t *sgi_data_pP, unsigned char* data_pP, int packet_sizeP) -{ - Gtpv1uTunnelDataReq *gtpv1u_tunnel_data_req_p = NULL; - MessageDef *message_p = NULL; - unsigned char *message_payload_p = NULL ; - struct ether_header *eh_p = (struct ether_header *) data_pP; - struct arphdr *arph_p = NULL; - struct iphdr *iph_p = NULL; - struct ipv6hdr *ip6h_p = NULL; - sgi_addr_mapping_t *addr_mapping_p = NULL; - struct in6_addr dest6_addr; - u_int32_t dest4_addr; - u_int32_t src4_addr; - struct in_addr in_dest_addr; - - - switch (htons(eh_p->ether_type)) { - //sgi_print_hex_octets(data_pP, packet_sizeP); - - //******************* - case ETHERTYPE_IP: - //******************* - iph_p = (struct iphdr *) (data_pP + sizeof(struct ether_header)); - dest4_addr = iph_p->daddr; - - if (hashtable_get(sgi_data_pP->addr_v4_mapping, dest4_addr, (void**)&addr_mapping_p) != HASH_TABLE_OK) { - if (sgi_data_pP->ipv4_addr == dest4_addr) { - //SGI_IF_DEBUG("%s Dropping incoming egress IPV4 packet not UE IP flow\n", __FUNCTION__); - return; - } else { - in_dest_addr.s_addr = dest4_addr; - //SGI_IF_WARNING("%s Dropping incoming egress IPV4 packet, IPV4 dest %s not found \n", __FUNCTION__, inet_ntoa(in_dest_addr)); - return; - } - } - - break; - - - //******************* - case ETHERTYPE_IPV6: - //******************* - ip6h_p = (struct ipv6hdr *) (data_pP + sizeof(struct ether_header)); - memcpy(dest6_addr.__in6_u.__u6_addr8, ip6h_p->daddr.__in6_u.__u6_addr8, 16); - - if (obj_hashtable_get(sgi_data_pP->addr_v6_mapping, (void*)&dest6_addr, sizeof(struct in6_addr), (void**)&addr_mapping_p) != HASH_TABLE_OK) { - SGI_IF_WARNING("%s Dropping incoming egress IPV6 packet, IPV6 dest %X:%X:%X:%X:%X:%X:%X:%X not found \n", __FUNCTION__, NIP6ADDR(&dest6_addr)); - return; - } - - break; - - - //******************* - case ETHERTYPE_REVARP: - //******************* - SGI_IF_ERROR("%s UNHANDLED ETHERTYPE_REVARP of incoming egress packet\n", __FUNCTION__); - return; - break; - - - //******************* - case ETHERTYPE_ARP: - //******************* - SGI_IF_DEBUG("%s HANDLED ETHERTYPE_ARP of incoming egress packet\n", __FUNCTION__); - arph_p = (struct arphdr *) (data_pP + sizeof(struct ether_header)); - // The entry should be here but all signalling tied with RRC procedures not finished so - // a data packet can arrive before the MODIFY_BEARER REQUEST - // get " unsigned char __ar_tip[4]; /* Target IP address. */" (from /usr/include/net/if_apr.h line 68) - memcpy(&dest4_addr, &((unsigned char*)(&arph_p[1]))[ETH_ALEN*2+4], 4); - SGI_IF_DEBUG("%s ARP OPCODE %s TARGET IP %d.%d.%d.%d\n", __FUNCTION__, sgi_arpopcode_2_str(ntohl(arph_p->ar_op)), NIPADDR(dest4_addr)); - - if (hashtable_get(sgi_data_pP->addr_v4_mapping, dest4_addr, (void**)&addr_mapping_p) != HASH_TABLE_OK) { - if (sgi_data_pP->ipv4_addr == dest4_addr) { - SGI_IF_DEBUG("%s Dropping incoming egress IPV4 packet not UE IP flow\n", __FUNCTION__); - return; - } else { - if (sgi_data_pP->hw_address_of_router_captured) { - in_dest_addr.s_addr = dest4_addr; - SGI_IF_WARNING("%s Dropping incoming egress IPV4 packet, IPV4 dest %s not found \n", __FUNCTION__, inet_ntoa(in_dest_addr)); - } else { - // may be a response to our ARP request to router - if (htons(arph_p->ar_op) == ARPOP_REPLY) { - memcpy(&src4_addr, &((unsigned char*)(&arph_p[1]))[ETH_ALEN], 4); - SGI_IF_DEBUG("%s FOR ROUTER HW ADDRESS COMPARING: %d - %d %d - %d\n", - __FUNCTION__, - sgi_data_pP->local_addr_v4_4_hw_address_router_capture, - dest4_addr, - sgi_data_pP->ipv4_addr_of_router, - src4_addr); - - if ((sgi_data_pP->local_addr_v4_4_hw_address_router_capture == dest4_addr) && (sgi_data_pP->ipv4_addr_of_router == src4_addr)) { - sgi_data_pP->hw_address_of_router_captured = 1; - sgi_data_pP->eh.ether_dhost[0] = ((unsigned char*)(&arph_p[1]))[0]; - sgi_data_pP->eh.ether_dhost[1] = ((unsigned char*)(&arph_p[1]))[1]; - sgi_data_pP->eh.ether_dhost[2] = ((unsigned char*)(&arph_p[1]))[2]; - sgi_data_pP->eh.ether_dhost[3] = ((unsigned char*)(&arph_p[1]))[3]; - sgi_data_pP->eh.ether_dhost[4] = ((unsigned char*)(&arph_p[1]))[4]; - sgi_data_pP->eh.ether_dhost[5] = ((unsigned char*)(&arph_p[1]))[5]; - SGI_IF_DEBUG("%s FOUND ROUTER HW ADDRESS: %02x:%02x:%02x:%02x:%02x:%02x\n", __FUNCTION__, NMACADDR(sgi_data_pP->eh.ether_dhost)); - } - } - } - - return; - } - } - - break; - - default: - //SGI_IF_ERROR("%s UNHANDLED ether type %d of incoming egress packet\n", __FUNCTION__, eh_p->ether_type); - return; - } - - //SGI_IF_DEBUG("--------------------------------------------------------------\n%s :\n", __FUNCTION__); - //sgi_print_hex_octets(data_pP+sizeof(sgi_data_pP->eh), packet_sizeP - sizeof(sgi_data_pP->eh)); - - message_p = itti_alloc_new_message(TASK_FW_IP, GTPV1U_TUNNEL_DATA_REQ); - - if (message_p == NULL) { - SGI_IF_ERROR("%s OUT OF MEMORY DROP EGRESS PACKET\n", __FUNCTION__); - return; - } - - AssertFatal((packet_sizeP - sizeof(sgi_data_pP->eh)) > 20, "BAD IP PACKET SIZE"); - message_payload_p = itti_malloc(TASK_FW_IP, TASK_GTPV1_U, packet_sizeP - sizeof(sgi_data_pP->eh) + GTPU_HEADER_OVERHEAD_MAX); - - if (message_payload_p == NULL) { - SGI_IF_ERROR("%s OUT OF MEMORY DROP EGRESS PACKET\n", __FUNCTION__); - return; - } - - memcpy(message_payload_p + GTPU_HEADER_OVERHEAD_MAX, data_pP+sizeof(sgi_data_pP->eh), packet_sizeP - sizeof(sgi_data_pP->eh)); - - gtpv1u_tunnel_data_req_p = &message_p->ittiMsg.gtpv1uTunnelDataReq; - gtpv1u_tunnel_data_req_p->S1u_enb_teid = addr_mapping_p->enb_S1U_teid; - //#warning forced S1u_enb_teid to 1 for testing, waiting for MODIFY_BEARER REQUEST - // gtpv1u_tunnel_data_req_p->S1u_enb_teid = 1; - gtpv1u_tunnel_data_req_p->local_S1u_teid = addr_mapping_p->sgw_S1U_teid; - gtpv1u_tunnel_data_req_p->length = packet_sizeP - sizeof(sgi_data_pP->eh); - gtpv1u_tunnel_data_req_p->offset = GTPU_HEADER_OVERHEAD_MAX; - gtpv1u_tunnel_data_req_p->buffer = message_payload_p; - SGI_IF_DEBUG("%s send GTPV1U_TUNNEL_DATA_REQ to GTPV1U S1u_enb_teid %u local_S1u_teid %u size %u\n", - __FUNCTION__, - gtpv1u_tunnel_data_req_p->S1u_enb_teid, - gtpv1u_tunnel_data_req_p->local_S1u_teid, - gtpv1u_tunnel_data_req_p->length); - - itti_send_msg_to_task(TASK_GTPV1_U, INSTANCE_DEFAULT, message_p); - -} -#endif -#endif -void sgi_process_dgram_packet(sgi_data_t *sgi_data_pP, unsigned char* data_pP, int packet_sizeP) -{ - Gtpv1uTunnelDataReq *gtpv1u_tunnel_data_req_p = NULL; - MessageDef *message_p = NULL; - unsigned char *message_payload_p = NULL ; - struct arphdr *arph_p = NULL; - struct iphdr *iph_p = NULL; - struct ipv6hdr *ip6h_p = NULL; - sgi_addr_mapping_t *addr_mapping_p = NULL; - struct in6_addr dest6_addr; - u_int32_t dest4_addr; - u_int32_t src4_addr; - struct in_addr in_dest_addr; - - sgi_print_hex_octets(data_pP, packet_sizeP); - - return; - message_p = itti_alloc_new_message(TASK_FW_IP, GTPV1U_TUNNEL_DATA_REQ); - - if (message_p == NULL) { - SGI_IF_ERROR("%s OUT OF MEMORY DROP EGRESS PACKET\n", __FUNCTION__); - return; - } - - AssertFatal(packet_sizeP > 20, "BAD IP PACKET SIZE"); - message_payload_p = itti_malloc(TASK_FW_IP, TASK_GTPV1_U, packet_sizeP + GTPU_HEADER_OVERHEAD_MAX); - - if (message_payload_p == NULL) { - SGI_IF_ERROR("%s OUT OF MEMORY DROP EGRESS PACKET\n", __FUNCTION__); - return; - } - - memcpy(message_payload_p + GTPU_HEADER_OVERHEAD_MAX, data_pP, packet_sizeP); - - gtpv1u_tunnel_data_req_p = &message_p->ittiMsg.gtpv1uTunnelDataReq; - gtpv1u_tunnel_data_req_p->S1u_enb_teid = addr_mapping_p->enb_S1U_teid; - //#warning forced S1u_enb_teid to 1 for testing, waiting for MODIFY_BEARER REQUEST - // gtpv1u_tunnel_data_req_p->S1u_enb_teid = 1; - gtpv1u_tunnel_data_req_p->local_S1u_teid = addr_mapping_p->sgw_S1U_teid; - gtpv1u_tunnel_data_req_p->length = packet_sizeP ; - gtpv1u_tunnel_data_req_p->offset = GTPU_HEADER_OVERHEAD_MAX; - gtpv1u_tunnel_data_req_p->buffer = message_payload_p; - SGI_IF_DEBUG("%s send GTPV1U_TUNNEL_DATA_REQ to GTPV1U S1u_enb_teid %u local_S1u_teid %u size %u\n", - __FUNCTION__, - gtpv1u_tunnel_data_req_p->S1u_enb_teid, - gtpv1u_tunnel_data_req_p->local_S1u_teid, - gtpv1u_tunnel_data_req_p->length); - - itti_send_msg_to_task(TASK_GTPV1_U, INSTANCE_DEFAULT, message_p); - -} diff --git a/openair-cn/SGI/sgi_nf.c b/openair-cn/SGI/sgi_nf.c deleted file mode 100755 index c81dcf64d6..0000000000 --- a/openair-cn/SGI/sgi_nf.c +++ /dev/null @@ -1,362 +0,0 @@ -/******************************************************************************* - OpenAirInterface - Copyright(c) 1999 - 2014 Eurecom - - OpenAirInterface is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - - OpenAirInterface is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with OpenAirInterface.The full GNU General Public License is - included in this distribution in the file called "COPYING". If not, - see . - - Contact Information - OpenAirInterface Admin: openair_admin@eurecom.fr - OpenAirInterface Tech : openair_tech@eurecom.fr - OpenAirInterface Dev : openair4g-devel@eurecom.fr - - Address : Eurecom, Compus SophiaTech 450, route des chappes, 06451 Biot, France. - - *******************************************************************************/ -/*! \file sgi_nf.c -* \brief -* \author Lionel Gauthier -* \company Eurecom -* \email: lionel.gauthier@eurecom.fr -*/ -#include -#include - -#include -#include /* Defines verdicts (NF_ACCEPT, etc) */ -#include -#include -#include - -#include "mme_config.h" -#include "intertask_interface.h" -#include "sgi.h" -//----------------------------------------------------------------------------- -struct nfq_handle { - struct nfnl_handle *nfnlh; - struct nfnl_subsys_handle *nfnlssh; - struct nfq_q_handle *qh_list; -}; - -struct nfq_q_handle { - struct nfq_q_handle *next; - struct nfq_handle *h; - u_int16_t id; - - nfq_callback *cb; - void *data; -}; - -struct nfq_data { - struct nfattr **data; -}; - - -enum { - NFQ_XML_HW = (1 << 0), NFQ_XML_MARK = (1 << 1), NFQ_XML_DEV = (1 << 2), NFQ_XML_PHYSDEV = (1 << 3), - NFQ_XML_PAYLOAD = (1 << 4), NFQ_XML_TIME = (1 << 5), NFQ_XML_ALL = ~0U -}; -//------------------------------------------------------ -#define SNPRINTF_FAILURE(ret, rem, offset, len) \ -do { \ - if (ret < 0) \ - return ret; \ - len += ret; \ - if (ret > rem) \ - ret = rem; \ - offset += ret; \ - rem -= ret; \ -} while (0) - -//------------------------------------------------------ -static int nfq_snprintf(char *buf, size_t rem, struct nfq_data *tb, int flags) -//------------------------------------------------------ -{ - struct nfqnl_msg_packet_hdr *ph; - struct nfqnl_msg_packet_hw *hwph; - u_int32_t mark, ifi; - int size, offset = 0, len = 0, ret; - unsigned char *data; - - size = snprintf(buf + offset, rem, ""); - SNPRINTF_FAILURE(size, rem, offset, len); - - - - ph = nfq_get_msg_packet_hdr(tb); - - if (ph) { - size = snprintf(buf + offset, rem, - " %u %u", - ph->hook, ntohl(ph->packet_id)); - SNPRINTF_FAILURE(size, rem, offset, len); - - hwph = nfq_get_packet_hw(tb); - - if (hwph && (flags & NFQ_XML_HW)) { - int i, hlen = ntohs(hwph->hw_addrlen); - - size = snprintf(buf + offset, rem, "%04x" - "", - ntohs(ph->hw_protocol)); - SNPRINTF_FAILURE(size, rem, offset, len); - - size = snprintf(buf + offset, rem, ""); - SNPRINTF_FAILURE(size, rem, offset, len); - - for (i=0; ihw_addr[i]); - SNPRINTF_FAILURE(size, rem, offset, len); - } - - size = snprintf(buf + offset, rem, ""); - SNPRINTF_FAILURE(size, rem, offset, len); - } else if (flags & NFQ_XML_HW) { - size = snprintf(buf + offset, rem, "%04x" - "", - ntohs(ph->hw_protocol)); - SNPRINTF_FAILURE(size, rem, offset, len); - } - } - - mark = nfq_get_nfmark(tb); - - if (mark && (flags & NFQ_XML_MARK)) { - size = snprintf(buf + offset, rem, "%u", mark); - SNPRINTF_FAILURE(size, rem, offset, len); - } - - ifi = nfq_get_indev(tb); - - if (ifi && (flags & NFQ_XML_DEV)) { - size = snprintf(buf + offset, rem, "%u", ifi); - SNPRINTF_FAILURE(size, rem, offset, len); - } - - ifi = nfq_get_outdev(tb); - - if (ifi && (flags & NFQ_XML_DEV)) { - size = snprintf(buf + offset, rem, "%u", ifi); - SNPRINTF_FAILURE(size, rem, offset, len); - } - - ifi = nfq_get_physindev(tb); - - if (ifi && (flags & NFQ_XML_PHYSDEV)) { - size = snprintf(buf + offset, rem, - "%u", ifi); - SNPRINTF_FAILURE(size, rem, offset, len); - } - - ifi = nfq_get_physoutdev(tb); - - if (ifi && (flags & NFQ_XML_PHYSDEV)) { - size = snprintf(buf + offset, rem, - "%u", ifi); - SNPRINTF_FAILURE(size, rem, offset, len); - } - - ret = nfq_get_payload(tb, &data); - - if (ret >= 0 && (flags & NFQ_XML_PAYLOAD)) { - int i; - - size = snprintf(buf + offset, rem, ""); - SNPRINTF_FAILURE(size, rem, offset, len); - - for (i=0; i"); - SNPRINTF_FAILURE(size, rem, offset, len); - } - - size = snprintf(buf + offset, rem, ""); - SNPRINTF_FAILURE(size, rem, offset, len); - - return len; -} -//------------------------------------------------------ -static int sgi_nfqueue_callback(struct nfq_q_handle *myQueue, struct nfgenmsg *msg, - struct nfq_data *pkt, void *cbData) -//----------------------------------------------------------------------------- -{ - uint32_t id = 0; - struct nfqnl_msg_packet_hdr *header; - struct nfqnl_msg_packet_hw *macAddr; - MessageDef *message_p; - Gtpv1uTunnelDataReq *data_req_p; - Teid_t local_teid; - u_int32_t verdict; - - if ((header = nfq_get_msg_packet_hdr(pkt))) { - id = ntohl(header->packet_id); - SGI_IF_DEBUG("packet_id %u hw_protocol %u hook %u\n", ntohl(header->packet_id), ntohs(header->hw_protocol), header->hook); - } - - // The HW address is only fetchable at certain hook points - // LG Warning HW address is src address - macAddr = nfq_get_packet_hw(pkt); - - if (macAddr) { - SGI_IF_DEBUG("MAC len %u addr %02X:%02X:%02X:%02X:%02X:%02X\n", - ntohs(macAddr->hw_addrlen), - macAddr->hw_addr[0], - macAddr->hw_addr[1], - macAddr->hw_addr[2], - macAddr->hw_addr[3], - macAddr->hw_addr[4], - macAddr->hw_addr[5]); - } else { - SGI_IF_DEBUG("No MAC addr\n"); - } - - /*timeval tv; - if (!nfq_get_timestamp(pkt, &tv)) { - cout << "; tstamp " << tv.tv_sec << "." << tv.tv_usec; - } else { - cout << "; no tstamp"; - }*/ - - //cout << "; mark " << nfq_get_nfmark(pkt); - // Print the payload; in copy meta mode, only headers will be included; - // in copy packet mode, whole packet will be returned. - char *pktData; - int len = nfq_get_payload(pkt, &pktData); - - // Note that you can also get the physical devices - SGI_IF_DEBUG("pkt id %d recvd: indev %d outdev %d mark %d len %d\n", - id, - nfq_get_indev(pkt), - nfq_get_outdev(pkt), - nfq_get_nfmark(pkt), - len); - - - //sgi_print_hex_octets((unsigned char *)pktData, len); - - message_p = itti_alloc_new_message(TASK_FW_IP, GTPV1U_TUNNEL_DATA_REQ); - - if (message_p == NULL) { - return -1; - } - - data_req_p = &message_p->ittiMsg.gtpv1uTunnelDataReq; - data_req_p->buffer = malloc(sizeof(uint8_t) * len); - - if (data_req_p->buffer == NULL) { - SGI_IF_ERROR("Failed to allocate new buffer\n"); - itti_free(ITTI_MSG_ORIGIN_ID(message_p), message_p); - message_p = NULL; - return -1; - } else { - // MAY BE TO BE CHANGED - local_teid = nfq_get_nfmark(pkt); - - // if packet is marked, it is a packet going into a EPS bearer - //if (local_teid != 0) { - if (1) { - data_req_p->local_S1u_teid = local_teid; - - memcpy(data_req_p->buffer, pktData, len); - data_req_p->length = len; - - if (itti_send_msg_to_task(TASK_GTPV1_U, INSTANCE_DEFAULT, message_p) < 0) { - SGI_IF_ERROR("Failed to send message to task\n"); - itti_free(ITTI_MSG_ORIGIN_ID(message_p), message_p); - message_p = NULL; - } - - verdict = NF_STOLEN; - return nfq_set_verdict(myQueue, id, verdict, 0, NULL); - } else { - verdict = NF_ACCEPT; - return nfq_set_verdict(myQueue, id, verdict, len, pktData); - } - } - - return 0; - // end sgi_nfqueue_callback -} -//----------------------------------------------------------------------------- -void* sgi_nf_fw_2_gtpv1u_thread(void *args_p) -//----------------------------------------------------------------------------- -{ - struct nfq_handle *nfqHandle; - struct nfq_q_handle *myQueue; - struct nfnl_handle *netlinkHandle; - int fd, res; - volatile sgi_data_t *sgi_data_p; - - sgi_data_p = (sgi_data_t*)args_p; - - SGI_IF_DEBUG("RX thread on netfilter queue started, operating on Device %s iif %d\n", sgi_data_p->interface_name, sgi_data_p->interface_index); - - // Get a queue connection handle from the module - if (!(nfqHandle = nfq_open())) { - SGI_IF_ERROR("Error in nfq_open()"); - exit(-1); - } - - // Unbind the handler from processing any IP packets - // Not totally sure why this is done, or if it's necessary... - if (nfq_unbind_pf(nfqHandle, PF_INET) < 0) { - SGI_IF_ERROR("Error in nfq_unbind_pf()"); - exit(-1); - } - - // Bind this handler to process IP packets... - if (nfq_bind_pf(nfqHandle, PF_INET) < 0) { - SGI_IF_ERROR("Error in nfq_bind_pf()"); - exit(-1); - } - - // Install a callback on queue 1 - if (!(myQueue = nfq_create_queue(nfqHandle, 1, &sgi_nfqueue_callback, NULL))) { - SGI_IF_ERROR("Error in nfq_create_queue()"); - exit(-1); - } - - // Turn on packet copy mode - if (nfq_set_mode(myQueue, NFQNL_COPY_PACKET, 0xffff) < 0) { - SGI_IF_ERROR("Could not set packet copy mode"); - exit(-1); - } - - netlinkHandle = nfq_nfnlh(nfqHandle); - fd = nfnl_fd(netlinkHandle); - - SGI_IF_DEBUG("Waiting for egress packets\n"); - sgi_data_p->thread_started = 1; - - while ((res = recv(fd, &sgi_data_p->recv_buffer[sizeof(struct ether_header)], SGI_BUFFER_RECV_LEN, 0)) && res >= 0) { - // a callback mechanism is used - // rather than just handling it directly here, but that - // seems to be the convention... - nfq_handle_packet(nfqHandle, &sgi_data_p->recv_buffer[sizeof(struct ether_header)], res); - // end while receiving traffic - } - - nfq_destroy_queue(myQueue); - - nfq_close(nfqHandle); - - return NULL; -} diff --git a/openair-cn/SGI/sgi_pcap.c b/openair-cn/SGI/sgi_pcap.c deleted file mode 100755 index b81d743562..0000000000 --- a/openair-cn/SGI/sgi_pcap.c +++ /dev/null @@ -1,99 +0,0 @@ -/******************************************************************************* - OpenAirInterface - Copyright(c) 1999 - 2014 Eurecom - - OpenAirInterface is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - - OpenAirInterface is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with OpenAirInterface.The full GNU General Public License is - included in this distribution in the file called "COPYING". If not, - see . - - Contact Information - OpenAirInterface Admin: openair_admin@eurecom.fr - OpenAirInterface Tech : openair_tech@eurecom.fr - OpenAirInterface Dev : openair4g-devel@eurecom.fr - - Address : Eurecom, Compus SophiaTech 450, route des chappes, 06451 Biot, France. - - *******************************************************************************/ -/*! \file sgi_pcap.c -* \brief -* \author Lionel Gauthier -* \company Eurecom -* \email: lionel.gauthier@eurecom.fr -*/ -#include -#include "sgi.h" - - -//--------------------------------------------------------------------------------------------------------------------- -void* sgi_pcap_fw_2_gtpv1u_thread(void* args_p) -{ - bpf_u_int32 netaddr = 0, mask = 0; // To store network address and netmask - struct bpf_program filter; // Place to store the BPF filter program - char errbuf[PCAP_ERRBUF_SIZE]; // Error buffer - struct pcap_pkthdr pkthdr; // Packet information (timestamp, size...) - const unsigned char *packet = NULL; // Received raw data - char filter_string[] = ""; - sgi_data_t *sgi_data_p; - - sgi_data_p = (sgi_data_t*)args_p; - - SGI_IF_DEBUG("[PCAP] Device is %s and iif is %d\n", sgi_data_p->interface_name, sgi_data_p->interface_index); - - memset(errbuf, 0, PCAP_ERRBUF_SIZE); - - sgi_data_p->pcap_descr = pcap_open_live(sgi_data_p->interface_name, SGI_PCAPMAXBYTES2CAPTURE, 0, SGI_PCAPTIMEDELAYKERNEL2USERSPACE, errbuf); - - if (sgi_data_p->pcap_descr == NULL) - SGI_IF_ERROR("Error %s", errbuf); - else if (*errbuf) - SGI_IF_WARNING("Warning %s\n", errbuf); - - // Look up info from the capture device - if (pcap_lookupnet(sgi_data_p->interface_name, &netaddr, &mask, errbuf) == -1) { - SGI_IF_ERROR("Can't get netmask for device %s\n", sgi_data_p->interface_name); - netaddr = 0; - mask = 0; - pthread_exit(NULL); - } - - // Compiles the filter expression into a BPF filter program - if (pcap_compile(sgi_data_p->pcap_descr, &filter, filter_string, 0, mask) == -1) { - SGI_IF_ERROR("Couldn't parse filter : %s\n", pcap_geterr(sgi_data_p->pcap_descr)); - pthread_exit(NULL); - } - - // Load the filter program into the packet capture device - if (pcap_setfilter(sgi_data_p->pcap_descr, &filter) == -1) { - SGI_IF_ERROR("Couldn't install filter: %s\n", pcap_geterr(sgi_data_p->pcap_descr)); - pthread_exit(NULL); - } - - pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL); - sgi_data_p->thread_started = 1; - - while (1) { - packet = pcap_next(sgi_data_p->pcap_descr, &pkthdr); // Get one packet - - if ( ( pkthdr.len > 0 ) && ( packet != NULL ) ) { - sgi_print_hex_octets(packet, pkthdr.len); - - if (packet[54] == 0x85) { // case ROUTER SOLICITATION WITH ETHERNET HEADER - } - } - } - - pthread_exit(NULL); -} - diff --git a/openair-cn/SGI/sgi_socket.c b/openair-cn/SGI/sgi_socket.c deleted file mode 100644 index a73fcbd9d2..0000000000 --- a/openair-cn/SGI/sgi_socket.c +++ /dev/null @@ -1,1035 +0,0 @@ -/******************************************************************************* - OpenAirInterface - Copyright(c) 1999 - 2014 Eurecom - - OpenAirInterface is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - - OpenAirInterface is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with OpenAirInterface.The full GNU General Public License is - included in this distribution in the file called "COPYING". If not, - see . - - Contact Information - OpenAirInterface Admin: openair_admin@eurecom.fr - OpenAirInterface Tech : openair_tech@eurecom.fr - OpenAirInterface Dev : openair4g-devel@eurecom.fr - - Address : Eurecom, Compus SophiaTech 450, route des chappes, 06451 Biot, France. - - *******************************************************************************/ -/*! \file sgi_socket.c -* \brief -* \author Lionel Gauthier -* \company Eurecom -* \email: lionel.gauthier@eurecom.fr -*/ -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include //mmap - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#ifndef SGI_UE_ETHER_TRAFFIC -#include -#endif - - -#include -#include -#include "sgi.h" -#include "intertask_interface.h" - - -//static char sgi_command_buffer[256]; - -#define HW_ADDRESS "%02x:%02x:%02x:%02x:%02x:%02x" -#define HW_ADDRESS_FORMAT(iFR) \ - (uint8_t)(iFR)[0], \ - (uint8_t)(iFR)[1], \ - (uint8_t)(iFR)[2], \ - (uint8_t)(iFR)[3], \ - (uint8_t)(iFR)[4], \ - (uint8_t)(iFR)[5] - -#define IPV4_ADDR "%u.%u.%u.%u" -#define IPV4_ADDR_FORMAT(aDDRESS) \ - (uint8_t)((aDDRESS) & 0x000000ff), \ - (uint8_t)(((aDDRESS) & 0x0000ff00) >> 8 ), \ - (uint8_t)(((aDDRESS) & 0x00ff0000) >> 16), \ - (uint8_t)(((aDDRESS) & 0xff000000) >> 24) - -struct ipv6hdr { - __u8 priority:4, - version:4; - __u8 flow_lbl[3]; - - __be16 payload_len; - __u8 nexthdr; - __u8 hop_limit; - - struct in6_addr saddr; - struct in6_addr daddr; -}; - - -/// The number of frames in the ring -// This number is not set in stone. Nor are block_size, block_nr or frame_size -#define CONF_RING_FRAMES 128 - -/// Offset of data from start of frame -#define PKT_OFFSET (TPACKET_ALIGN(sizeof(struct tpacket_hdr)) + \ - TPACKET_ALIGN(sizeof(struct sockaddr_ll))) - -int sgi_create_vlan_interface(char *interface_nameP, int vlan_idP) -{ - char vlan_interface_name[IFNAMSIZ]; - char command_line[256]; - int ret = 0; - - ret = sprintf(vlan_interface_name, "%s.%d", interface_nameP, vlan_idP); - - if (ret > 0) { - ret = sprintf(command_line, "ifconfig %s down > /dev/null 2>&1", vlan_interface_name); - - if (ret > 0) ret = system(command_line); - else return -1; - - ret = sprintf(command_line, "vconfig rem %s > /dev/null 2>&1", vlan_interface_name); - - if (ret > 0) ret = system(command_line); - else return -1; - - ret = sprintf(command_line, "vconfig add %s %d", interface_nameP, vlan_idP); - - if (ret > 0) ret = system(command_line); - else return -1; - - ret = sprintf(command_line, "ifconfig %s up", vlan_interface_name); - - if (ret > 0) ret = system(command_line); - else return -1; - - ret = sprintf(command_line, "sync"); - - if (ret > 0) ret = system(command_line); - else return -1; - - //ret = sprintf(command_line, "ip -4 addr add 10.0.%d.2/24 dev %s", vlan_idP+200, vlan_interface_name); - //if (ret > 0) ret = system(command_line); else return -1; - return 0; - } else { - return -1; - } -} - - -int sgi_create_sockets(sgi_data_t *sgi_data_p) -{ -#ifdef SGI_SOCKET_BIND_TO_IF - struct sockaddr_ll socket_address; - char if_name[16]; -#endif -#ifdef SGI_MARKING - int value = 0; - const int *val_p=&value; -#endif -#ifdef SGI_PACKET_RX_RING - struct tpacket_req tp; -#endif - uint32_t i = 0; -#ifndef SGI_UE_ETHER_TRAFFIC - FILE *fp = NULL; - char filename[128]; - int rc = 0; - char *router_mac_addr = NULL; - int b = 0; - char addr_mac_byte[16]; -#endif - - if (sgi_data_p == NULL) { - return -1; - } - - SGI_IF_DEBUG("Creating sockets for sgi on interface %s\n", sgi_data_p->interface_name); - - // qci = 0 is for the default bearers QOS, Non-GBR - /* Create a RAW IP socket and request for all internet IP traffic */ - // work - for (i = 0; i < SGI_MAX_EPS_BEARERS_PER_USER; i++) { - - sgi_create_vlan_interface(sgi_data_p->interface_name,i+SGI_MIN_EPS_BEARER_ID); - - // works also -#if defined SGI_SOCKET_RAW - sgi_data_p->sd[i] = socket(PF_PACKET, SOCK_RAW, htons(IPPROTO_RAW)); -#else -#if defined SGI_SOCKET_DGRAM - SGI_IF_DEBUG("Created socket PF_PACKET/SOCK_DGRAM/ETH_P_ALL\n",strerror(errno), errno); - sgi_data_p->sd[i] = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_ALL)); -#endif -#endif - //sgi_data_p->sd[i] = socket(AF_INET, SOCK_RAW, ETH_P_IP); - //sgi_data_p->sd[i] = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_IP)); - - if (sgi_data_p->sd[i] < 0) { - SGI_IF_ERROR("Error during socket creation (%s:%d)\n",strerror(errno), errno); - goto error; - } - - /* socket options, tell the kernel we provide the IP structure - int one = 1; - const int *val = &one; - if(setsockopt(sgi_data_p->sd[i], IPPROTO_IP, IP_HDRINCL, val, sizeof(one)) < 0) - { - SGI_IF_ERROR("Error during socket setsockopt IP_HDRINCL (%s:%d)\n", strerror(errno), errno); - goto error; - }*/ - - -#ifdef SGI_MARKING - // setting socket option to use MARK value - //value = rab_id + SGI_MIN_EPS_BEARER_ID; - value = 5; - - if (setsockopt (sgi_data_p->sd[i], SOL_SOCKET, SO_MARK, val_p, sizeof (value)) < 0) { - SGI_IF_ERROR("error notifying kernel about MARK"); - goto error; - } - - SGI_IF_DEBUG("Created socket %d for rab_id %d (for any UE context)\n", sgi_data_p->sd[i], value); -#endif - -#ifdef SGI_PACKET_RX_RING - // tell kernel to export data through mmap()ped ring - tp.tp_block_size = CONF_RING_FRAMES * getpagesize(); - tp.tp_block_nr = 1; - tp.tp_frame_size = getpagesize(); - tp.tp_frame_nr = CONF_RING_FRAMES; - - if (setsockopt(sgi_data_p->sd[i], SOL_PACKET, PACKET_RX_RING, (void*) &tp, sizeof(tp))) { - SGI_IF_ERROR("setsockopt() ring\n"); - goto error; - } - - // open ring - sgi_data_p->sock_mmap_ring = mmap(0, tp.tp_block_size * tp.tp_block_nr, PROT_READ | PROT_WRITE, MAP_SHARED, sgi_data_p->sd[i], 0); - - if (!sgi_data_p->sock_mmap_ring) { - SGI_IF_ERROR("Failed to mmap socket (%s:%d)\n", strerror(errno), errno); - goto error; - } - - /* Setup our ringbuffer */ - sgi_data_p->malloc_ring = malloc(tp.tp_frame_nr * sizeof(struct iovec)); - - for(i=0; imalloc_ring[i].iov_base=(void *)((long)sgi_data_p->sock_mmap_ring)+(i*tp.tp_frame_size); - sgi_data_p->malloc_ring[i].iov_len=tp.tp_frame_size; - } - -#endif - -#ifdef SGI_SOCKET_BIND_TO_IF - sprintf(if_name, "%s.%d",sgi_data_p->interface_name,i+SGI_MIN_EPS_BEARER_ID); - - memset(&socket_address, 0, sizeof(struct sockaddr_ll)); - socket_address.sll_family = AF_PACKET; //always PF_PACKET - - //socket_address.sll_addr = ;// Filled when we want to tx - //socket_address.sll_halen = ;// Filled when we want to tx - //socket_address.sll_family ;// Filled when we want to tx - - //socket_address.sll_hatype = ;// Filled when packet received - //socket_address.sll_pkttype = ;// Filled when packet received - sgi_data_p->if_index[i] = if_nametoindex(if_name); - socket_address.sll_ifindex = sgi_data_p->if_index[i]; - //LG 2014-11-07socket_address.sll_protocol = htons(ETH_P_IP);/* Protocol phy level */ - socket_address.sll_protocol = htons(ETH_P_ALL); - - // Now we can bind the socket to send the IP traffic - if (bind(sgi_data_p->sd[i], (struct sockaddr *)&socket_address, sizeof(struct sockaddr_ll)) < 0) { - SGI_IF_ERROR("Bind socket to %s (%s:%d)\n", if_name, strerror(errno), errno); - goto error; - } else { - SGI_IF_DEBUG("Bind EPS bearer ID %d socket %d to %s\n", - i+SGI_MIN_EPS_BEARER_ID, sgi_data_p->sd[i], if_name); - } - -#endif - - } - -#ifndef SGI_SOCKET_DGRAM - - if (sprintf(filename, "/sys/class/net/%s/address", sgi_data_p->interface_name) <= 0 ) { - SGI_IF_ERROR("Build of file name /sys/class/net/sgi_if_name/address Failed (%s:%d)\n", strerror(errno), errno); - goto error; - } - - fp = fopen(filename, "r"); - - if (fp) { - rc = fscanf(fp, "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx", - &sgi_data_p->interface_hw_address[0], - &sgi_data_p->interface_hw_address[1], - &sgi_data_p->interface_hw_address[2], - &sgi_data_p->interface_hw_address[3], - &sgi_data_p->interface_hw_address[4], - &sgi_data_p->interface_hw_address[5]); - fclose(fp); - - if (rc <= 0) { - SGI_IF_ERROR("ERROR reading %s\n" ,filename); - goto error; - } - } else { - SGI_IF_ERROR("Correct /sys/class/net/sgi_if_name file not found\n"); - goto error; - } - - memcpy((void*)(&sgi_data_p->eh.ether_shost[0]), (void*)(&sgi_data_p->interface_hw_address[0]), ETH_ALEN); - router_mac_addr = getenv("MAC_ROUTER"); - - if (router_mac_addr == NULL) { - SGI_IF_ERROR("ERROR getting ENV variable MAC_ROUTER, should be set by start script\n"); - goto error; - } - - for (b = 0 ; b < 6; b++) { - strncpy(addr_mac_byte, router_mac_addr+2*b, 2); - addr_mac_byte[2] = '\0'; - // we can do (unsigned int*) because x86 processors are little-endian - // (done for suppressing a warning) - rc = sscanf ((const char*)addr_mac_byte, "%02x", (uint32_t*)&i); - - if (rc < 1) { - SGI_IF_ERROR("Error in converting string MAC_ROUTER address %s in char array\n", router_mac_addr); - goto error; - } - - sgi_data_p->eh.ether_dhost[b] = (i & 0x000000FF); - } - - SGI_IF_DEBUG("Found MAC address for ROUTER : %02x:%02x:%02x:%02x:%02x:%02x\n", - NMACADDR(sgi_data_p->eh.ether_dhost)); - -#ifdef VLAN8021Q - sgi_data_p->eh.ether_vlan8021q.vlan_tpid = htons(0x8100); - sgi_data_p->eh.ether_vlan8021q.vlan_tci = htons(0x7000 | 0x0000 | 0x0000); -#endif - SGI_IF_DEBUG("Found MAC address for SGI IF %s: %02x:%02x:%02x:%02x:%02x:%02x\n", - sgi_data_p->interface_name, NMACADDR(sgi_data_p->eh.ether_shost)); - -#endif - return 0; -error: - SGI_IF_ERROR("ERROR (%s)\n", strerror(errno)); - - for (i=0; isd[i] > 0) { - close(sgi_data_p->sd[i]); - } - - sgi_data_p->sd[i] = -1; - } - - return -1; -} -#ifdef SGI_UE_ETHER_TRAFFIC -int sgi_send_data(uint8_t *buffer_pP, uint32_t length, sgi_data_t *sgi_data_pP, Teid_t originating_sgw_S1u_teidP) -{ - struct ether_header *eh_p = (struct ether_header *) buffer_pP; - struct iphdr *iph_p = NULL; - struct arphdr *arph_p = NULL; - struct ipv6hdr *ip6h_p = NULL; - sgi_teid_mapping_t *mapping_p = NULL; - sgi_addr_mapping_t *addr_mapping_p = NULL; - hashtable_rc_t hash_rc; - struct in6_addr src6_addr; /* source address */ - struct in6_addr *src6_addr_p; /* source address */ - u_int32_t src4_addr; - - if (buffer_pP == NULL) { - SGI_IF_ERROR("sgi_send_data: received bad parameter\n"); - return -1; - } - - // get IP version of this packet - switch (htons(eh_p->ether_type)) { - - //******************* - case ETHERTYPE_IP: - //******************* - iph_p = (struct iphdr *) (buffer_pP + sizeof(struct ether_header)); - // The entry should be here but all signalling tied with RRC procedures not finished so - // a data packet can arrive before the MODIFY_BEARER REQUEST - src4_addr = iph_p->saddr; - - if (hashtable_get(sgi_data_pP->addr_v4_mapping, src4_addr, (void**)&addr_mapping_p) != HASH_TABLE_OK) { - hash_rc = hashtable_get(sgi_data_pP->teid_mapping, originating_sgw_S1u_teidP, (void**)&mapping_p); - - if (hash_rc == HASH_TABLE_KEY_NOT_EXISTS) { - SGI_IF_ERROR("%s Error unknown context SGW teid %d\n", __FUNCTION__, originating_sgw_S1u_teidP); - return -1; - } else { - if (mapping_p->is_outgoing_ipv4_packet_seen == 0) { - mapping_p->hw_addrlen = ETH_ALEN; // TO DO - memcpy(mapping_p->ue_mac_addr, eh_p->ether_shost, ETH_ALEN); - mapping_p->is_outgoing_ipv4_packet_seen = 1; - mapping_p->in_add_captured.s_addr = src4_addr; - - addr_mapping_p = calloc(1, sizeof(sgi_addr_mapping_t)); - memcpy(addr_mapping_p->ue_mac_addr, eh_p->ether_shost, ETH_ALEN); - addr_mapping_p->is_outgoing_packet_seen = 1; - addr_mapping_p->enb_S1U_teid = mapping_p->enb_S1U_teid; - addr_mapping_p->sgw_S1U_teid = originating_sgw_S1u_teidP; - hashtable_insert(sgi_data_pP->addr_v4_mapping, src4_addr, (void*)addr_mapping_p); - SGI_IF_DEBUG("%s ASSOCIATED %d.%d.%d.%d to MAC %02x:%02x:%02x:%02x:%02x:%02x teid %d\n", - __FUNCTION__, NIPADDR(src4_addr), NMACADDR(eh_p->ether_shost), originating_sgw_S1u_teidP); - } else { - SGI_IF_ERROR("Error IPv4 address already registered for teid %d\n", originating_sgw_S1u_teidP); - return -1; - } - } - - } else { - hash_rc = hashtable_get(sgi_data_pP->teid_mapping, originating_sgw_S1u_teidP, (void**)&mapping_p); - } - - break; - - //******************* - case ETHERTYPE_ARP: - //******************* - arph_p = (struct arphdr *) (buffer_pP + sizeof(struct ether_header)); - // The entry should be here but all signalling tied with RRC procedures not finished so - // a data packet can arrive before the MODIFY_BEARER REQUEST - memcpy(&src4_addr, &((unsigned char*)(&arph_p[1]))[ETH_ALEN], 4); - SGI_IF_ERROR("%s ARP OPCODE %s TARGET IP %d.%d.%d.%d\n", __FUNCTION__, sgi_arpopcode_2_str(ntohl(arph_p->ar_op)), NIPADDR(src4_addr)); - - if (hashtable_get(sgi_data_pP->addr_v4_mapping, src4_addr, (void**)&addr_mapping_p) != HASH_TABLE_OK) { - hash_rc = hashtable_get(sgi_data_pP->teid_mapping, originating_sgw_S1u_teidP, (void**)&mapping_p); - - if (hash_rc == HASH_TABLE_KEY_NOT_EXISTS) { - SGI_IF_ERROR("%s Error unknown context SGW teid %d\n", __FUNCTION__, originating_sgw_S1u_teidP); - return -1; - } else { - if (mapping_p->is_outgoing_ipv4_packet_seen == 0) { - mapping_p->hw_addrlen = ETH_ALEN; // TO DO - memcpy(mapping_p->ue_mac_addr, eh_p->ether_shost, ETH_ALEN); - mapping_p->is_outgoing_ipv4_packet_seen = 1; - mapping_p->in_add_captured.s_addr = src4_addr; - - addr_mapping_p = calloc(1, sizeof(sgi_addr_mapping_t)); - memcpy(addr_mapping_p->ue_mac_addr, eh_p->ether_shost, ETH_ALEN); - addr_mapping_p->is_outgoing_packet_seen = 1; - addr_mapping_p->enb_S1U_teid = mapping_p->enb_S1U_teid; - addr_mapping_p->sgw_S1U_teid = originating_sgw_S1u_teidP; - hashtable_insert(sgi_data_pP->addr_v4_mapping, src4_addr, (void*)addr_mapping_p); - SGI_IF_DEBUG("%s ASSOCIATED %d.%d.%d.%d to MAC %02x:%02x:%02x:%02x:%02x:%02x teid %d\n", - __FUNCTION__, NIPADDR(src4_addr), NMACADDR(eh_p->ether_shost), originating_sgw_S1u_teidP); - } else { - SGI_IF_ERROR("Error IPv4 address already registered for teid %d\n", originating_sgw_S1u_teidP); - return -1; - } - } - - } else { - hash_rc = hashtable_get(sgi_data_pP->teid_mapping, originating_sgw_S1u_teidP, (void**)&mapping_p); - } - - break; - - - //******************* - case ETHERTYPE_IPV6: - ip6h_p = (struct ipv6hdr *) (buffer_pP + sizeof(struct ether_header)); - - if (obj_hashtable_get(sgi_data_pP->addr_v6_mapping, &src6_addr, sizeof(struct in6_addr), (void**)&addr_mapping_p) != HASH_TABLE_OK) { - hash_rc = hashtable_get(sgi_data_pP->teid_mapping, originating_sgw_S1u_teidP, (void**)&mapping_p); - - if (hash_rc == HASH_TABLE_KEY_NOT_EXISTS) { - SGI_IF_ERROR("%s Error unknown context SGW teid %d\n", __FUNCTION__, originating_sgw_S1u_teidP); - return -1; - } else { - - if (mapping_p->is_outgoing_ipv6_packet_seen < MAX_DEFINED_IPV6_ADDRESSES_PER_UE) { - mapping_p->hw_addrlen = ETH_ALEN; - memcpy(mapping_p->ue_mac_addr, eh_p->ether_shost, ETH_ALEN); - - memcpy(&mapping_p->in6_addr_captured[mapping_p->is_outgoing_ipv6_packet_seen].s6_addr, src6_addr.s6_addr, 16); - mapping_p->is_outgoing_ipv6_packet_seen +=1; - - addr_mapping_p = calloc(1, sizeof(sgi_addr_mapping_t)); - memcpy(addr_mapping_p->ue_mac_addr, eh_p->ether_shost, ETH_ALEN); - addr_mapping_p->is_outgoing_packet_seen = 1; - addr_mapping_p->enb_S1U_teid = mapping_p->enb_S1U_teid; - addr_mapping_p->sgw_S1U_teid = originating_sgw_S1u_teidP; - - src6_addr_p = malloc(sizeof(struct in6_addr)); - - if (src6_addr_p == NULL) { - return -1; - } - - memcpy(src6_addr_p->s6_addr, ip6h_p->saddr.s6_addr, 16); - obj_hashtable_insert(sgi_data_pP->addr_v6_mapping, src6_addr_p,sizeof(struct in6_addr), (void*)addr_mapping_p); - } else { - SGI_IF_ERROR("Error TOO MANY IPv6 address already registered for teid %d\n", originating_sgw_S1u_teidP); - return -1; - } - } - - } else { - hash_rc = hashtable_get(sgi_data_pP->teid_mapping, originating_sgw_S1u_teidP, (void**)&mapping_p); - } - - break; - - default: - SGI_IF_WARNING("%s UNHANDLED ETHERTYPE: %X\n", __FUNCTION__, htons(eh_p->ether_type)); - break; - } - - assert(mapping_p != NULL); - - if (send(sgi_data_pP->sd[mapping_p->eps_bearer_id - SGI_MIN_EPS_BEARER_ID], (void *)buffer_pP, length, 0) < 0) { - SGI_IF_ERROR("Error during send to socket %d bearer id %d : (%s:%d)\n", - sgi_data_pP->sd[mapping_p->eps_bearer_id - SGI_MIN_EPS_BEARER_ID], - mapping_p->eps_bearer_id, - strerror(errno), - errno); - return -1; - } - - return 0; -} -#else -int sgi_send_data(uint8_t *buffer_pP, uint32_t length, sgi_data_t *sgi_data_pP, Teid_t originating_sgw_S1u_teidP) -{ - struct iphdr *iph_p = (struct iphdr *) buffer_pP; - struct ipv6hdr *ip6h_p = (struct ipv6hdr *) buffer_pP; - sgi_teid_mapping_t *mapping_p = NULL; - sgi_addr_mapping_t *addr_mapping_p = NULL; - hashtable_rc_t hash_rc; - struct in6_addr src6_addr; /* source address */ - struct in6_addr *src6_addr_p; /* source address */ - u_int32_t src4_addr; - struct iovec iov[2]; - - if (buffer_pP == NULL) { - SGI_IF_ERROR("sgi_send_data: received bad parameter\n"); - return -1; - } - - // get IP version of this packet - switch (iph_p->version) { - - //******************* - case 4: - //******************* - // The entry should be here but all signalling tied with RRC procedures not finished so - // a data packet can arrive before the MODIFY_BEARER REQUEST - sgi_data_pP->eh.ether_type = htons(ETHERTYPE_IP); - src4_addr = iph_p->saddr; - - if (hashtable_get(sgi_data_pP->addr_v4_mapping, src4_addr, (void**)&addr_mapping_p) != HASH_TABLE_OK) { - hash_rc = hashtable_get(sgi_data_pP->teid_mapping, originating_sgw_S1u_teidP, (void**)&mapping_p); - - if (hash_rc == HASH_TABLE_KEY_NOT_EXISTS) { - SGI_IF_ERROR("%s Error unknown context SGW teid %d\n", __FUNCTION__, originating_sgw_S1u_teidP); - return -1; - } else { - if (mapping_p->is_outgoing_ipv4_packet_seen == 0) { - mapping_p->hw_addrlen = ETH_ALEN; // TO DO - mapping_p->is_outgoing_ipv4_packet_seen = 1; - mapping_p->in_add_captured.s_addr = src4_addr; - - addr_mapping_p = calloc(1, sizeof(sgi_addr_mapping_t)); - addr_mapping_p->is_outgoing_packet_seen = 1; - addr_mapping_p->enb_S1U_teid = mapping_p->enb_S1U_teid; - addr_mapping_p->sgw_S1U_teid = originating_sgw_S1u_teidP; - hashtable_insert(sgi_data_pP->addr_v4_mapping, src4_addr, (void*)addr_mapping_p); - SGI_IF_DEBUG("%s ASSOCIATED %d.%d.%d.%d to teid %d\n", - __FUNCTION__, NIPADDR(src4_addr), originating_sgw_S1u_teidP); - } else { - SGI_IF_ERROR("Error IPv4 address already registered for teid %d\n", originating_sgw_S1u_teidP); - return -1; - } - } - - } else { - hash_rc = hashtable_get(sgi_data_pP->teid_mapping, originating_sgw_S1u_teidP, (void**)&mapping_p); - } - - break; - - - - //******************* - case 6: - sgi_data_pP->eh.ether_type = htons(ETHERTYPE_IPV6); - - if (obj_hashtable_get(sgi_data_pP->addr_v6_mapping, &src6_addr, sizeof(struct in6_addr), (void**)&addr_mapping_p) != HASH_TABLE_OK) { - hash_rc = hashtable_get(sgi_data_pP->teid_mapping, originating_sgw_S1u_teidP, (void**)&mapping_p); - - if (hash_rc == HASH_TABLE_KEY_NOT_EXISTS) { - SGI_IF_ERROR("%s Error unknown context SGW teid %d\n", __FUNCTION__, originating_sgw_S1u_teidP); - return -1; - } else { - - if (mapping_p->is_outgoing_ipv6_packet_seen < MAX_DEFINED_IPV6_ADDRESSES_PER_UE) { - mapping_p->hw_addrlen = 0; - - memcpy(&mapping_p->in6_addr_captured[mapping_p->is_outgoing_ipv6_packet_seen].s6_addr, src6_addr.s6_addr, 16); - mapping_p->is_outgoing_ipv6_packet_seen +=1; - - addr_mapping_p = calloc(1, sizeof(sgi_addr_mapping_t)); - addr_mapping_p->is_outgoing_packet_seen = 1; - addr_mapping_p->enb_S1U_teid = mapping_p->enb_S1U_teid; - addr_mapping_p->sgw_S1U_teid = originating_sgw_S1u_teidP; - - src6_addr_p = malloc(sizeof(struct in6_addr)); - - if (src6_addr_p == NULL) { - return -1; - } - - memcpy(src6_addr_p->s6_addr, ip6h_p->saddr.s6_addr, 16); - obj_hashtable_insert(sgi_data_pP->addr_v6_mapping, src6_addr_p,sizeof(struct in6_addr), (void*)addr_mapping_p); - } else { - SGI_IF_ERROR("Error TOO MANY IPv6 address already registered for teid %d\n", originating_sgw_S1u_teidP); - return -1; - } - } - - } else { - hash_rc = hashtable_get(sgi_data_pP->teid_mapping, originating_sgw_S1u_teidP, (void**)&mapping_p); - } - - break; - - default: - SGI_IF_WARNING("%s UNHANDLED IP VERSION: %X\n", __FUNCTION__, iph_p->version); - break; - } - - assert(mapping_p != NULL); - iov[0].iov_base = &sgi_data_pP->eh; - iov[0].iov_len = sizeof(sgi_data_pP->eh); - iov[1].iov_base = (void *)buffer_pP; - iov[1].iov_len = length; -#ifdef VLAN8021Q - sgi_data_pP->eh.ether_vlan8021q.vlan_tci = htons(0x7000 | 0x0000 | mapping_p->eps_bearer_id); -#endif - - //sgi_print_hex_octets(iov[0].iov_base, iov[0].iov_len); - //sgi_print_hex_octets(iov[1].iov_base, iov[1].iov_len); - if (writev(sgi_data_pP->sd[mapping_p->eps_bearer_id - SGI_MIN_EPS_BEARER_ID], (const struct iovec *)iov, 2) < 0) { - SGI_IF_ERROR("Error during writev to socket %d bearer id %d : (%s:%d)\n", - sgi_data_pP->sd[mapping_p->eps_bearer_id - SGI_MIN_EPS_BEARER_ID], - mapping_p->eps_bearer_id, - strerror(errno), - errno); - return -1; - } - - /* if (send(sgi_data_pP->sd[mapping_p->eps_bearer_id - SGI_MIN_EPS_BEARER_ID], (void *)buffer_pP, length, 0) < 0) { - SGI_IF_ERROR("Error during send to socket %d bearer id %d : (%s:%d)\n", - sgi_data_pP->sd[mapping_p->eps_bearer_id - SGI_MIN_EPS_BEARER_ID], - mapping_p->eps_bearer_id, - strerror(errno), - errno); - return -1; - } - */ - return 0; -} - -#endif -int sgi_dgram_send_data(uint8_t *buffer_pP, uint32_t length, sgi_data_t *sgi_data_pP, Teid_t originating_sgw_S1u_teidP) -{ - struct iphdr *iph_p = (struct iphdr *) buffer_pP; - struct ipv6hdr *ip6h_p = (struct ipv6hdr *) buffer_pP; - sgi_teid_mapping_t *mapping_p = NULL; - sgi_addr_mapping_t *addr_mapping_p = NULL; - hashtable_rc_t hash_rc; - struct in6_addr src6_addr; /* source address */ - struct in6_addr *src6_addr_p; /* source address */ - u_int32_t src4_addr; - - struct sockaddr_ll device; - - if (buffer_pP == NULL) { - SGI_IF_ERROR("sgi_send_data: received bad parameter\n"); - return -1; - } - - // get IP version of this packet - switch (iph_p->version) { - - //******************* - case 4: - //******************* - // The entry should be here but all signalling tied with RRC procedures not finished so - // a data packet can arrive before the MODIFY_BEARER REQUEST - sgi_data_pP->eh.ether_type = htons(ETHERTYPE_IP); - src4_addr = iph_p->saddr; - - if (hashtable_get(sgi_data_pP->addr_v4_mapping, src4_addr, (void**)&addr_mapping_p) != HASH_TABLE_OK) { - hash_rc = hashtable_get(sgi_data_pP->teid_mapping, originating_sgw_S1u_teidP, (void**)&mapping_p); - - if (hash_rc == HASH_TABLE_KEY_NOT_EXISTS) { - SGI_IF_ERROR("%s Error unknown context SGW teid %d\n", __FUNCTION__, originating_sgw_S1u_teidP); - return -1; - } else { - if (mapping_p->is_outgoing_ipv4_packet_seen == 0) { - mapping_p->hw_addrlen = 0; // TO DO - mapping_p->is_outgoing_ipv4_packet_seen = 1; - mapping_p->in_add_captured.s_addr = src4_addr; - - addr_mapping_p = calloc(1, sizeof(sgi_addr_mapping_t)); - addr_mapping_p->is_outgoing_packet_seen = 1; - addr_mapping_p->enb_S1U_teid = mapping_p->enb_S1U_teid; - addr_mapping_p->sgw_S1U_teid = originating_sgw_S1u_teidP; - hashtable_insert(sgi_data_pP->addr_v4_mapping, src4_addr, (void*)addr_mapping_p); - SGI_IF_DEBUG("%s ASSOCIATED %d.%d.%d.%d to teid %d\n", - __FUNCTION__, NIPADDR(src4_addr), originating_sgw_S1u_teidP); - } else { - SGI_IF_ERROR("Error IPv4 address already registered for teid %d\n", originating_sgw_S1u_teidP); - return -1; - } - } - } else { - hash_rc = hashtable_get(sgi_data_pP->teid_mapping, originating_sgw_S1u_teidP, (void**)&mapping_p); - } - - break; - - - - //******************* - case 6: - sgi_data_pP->eh.ether_type = htons(ETHERTYPE_IPV6); - - if (obj_hashtable_get(sgi_data_pP->addr_v6_mapping, &src6_addr, sizeof(struct in6_addr), (void**)&addr_mapping_p) != HASH_TABLE_OK) { - hash_rc = hashtable_get(sgi_data_pP->teid_mapping, originating_sgw_S1u_teidP, (void**)&mapping_p); - - if (hash_rc == HASH_TABLE_KEY_NOT_EXISTS) { - SGI_IF_ERROR("%s Error unknown context SGW teid %d\n", __FUNCTION__, originating_sgw_S1u_teidP); - return -1; - } else { - - if (mapping_p->is_outgoing_ipv6_packet_seen < MAX_DEFINED_IPV6_ADDRESSES_PER_UE) { - mapping_p->hw_addrlen = 0; - - memcpy(&mapping_p->in6_addr_captured[mapping_p->is_outgoing_ipv6_packet_seen].s6_addr, src6_addr.s6_addr, 16); - mapping_p->is_outgoing_ipv6_packet_seen +=1; - - addr_mapping_p = calloc(1, sizeof(sgi_addr_mapping_t)); - addr_mapping_p->is_outgoing_packet_seen = 1; - addr_mapping_p->enb_S1U_teid = mapping_p->enb_S1U_teid; - addr_mapping_p->sgw_S1U_teid = originating_sgw_S1u_teidP; - - src6_addr_p = malloc(sizeof(struct in6_addr)); - - if (src6_addr_p == NULL) { - return -1; - } - - memcpy(src6_addr_p->s6_addr, ip6h_p->saddr.s6_addr, 16); - obj_hashtable_insert(sgi_data_pP->addr_v6_mapping, src6_addr_p,sizeof(struct in6_addr), (void*)addr_mapping_p); - } else { - SGI_IF_ERROR("Error TOO MANY IPv6 address already registered for teid %d\n", originating_sgw_S1u_teidP); - return -1; - } - } - - } else { - hash_rc = hashtable_get(sgi_data_pP->teid_mapping, originating_sgw_S1u_teidP, (void**)&mapping_p); - } - - break; - - default: - SGI_IF_WARNING("%s UNHANDLED IP VERSION: %X\n", __FUNCTION__, iph_p->version); - break; - } - - memset(&device, 0, sizeof(device)); - device.sll_family = AF_PACKET; - device.sll_protocol = htons(ETH_P_ALL); - device.sll_ifindex = sgi_data_pP->if_index[mapping_p->eps_bearer_id - SGI_MIN_EPS_BEARER_ID]; - - - if (sendto(sgi_data_pP->sd[mapping_p->eps_bearer_id - SGI_MIN_EPS_BEARER_ID], - buffer_pP, - length, - 0, - (struct sockaddr *) &device, - sizeof (device)) < 0) { - SGI_IF_ERROR("%d Error during send to socket %d bearer id %d : (%s:%d)\n", - __LINE__, - sgi_data_pP->sd[mapping_p->eps_bearer_id - SGI_MIN_EPS_BEARER_ID], - mapping_p->eps_bearer_id, - strerror(errno), - errno); - return -1; - } - - - return 0; -} - -#ifdef SGI_TEST -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#define SGI_TEST_BUFF_LEN 500 -unsigned char sgi_test_tx_buffer[SGI_TEST_BUFF_LEN]; - - -void sgi_test_send_ping(sgi_data_t *sgi_dataP, uint32_t markP, uint64_t src_mac_addrP, uint64_t dst_mac_addrP, char* src_ip_addrP, char* dst_ip_addrP) -{ -#ifdef SGI_PF_PACKET - struct ether_header *eh = (struct ether_header *) sgi_test_tx_buffer; - struct iphdr *iph = (struct iphdr *) (sgi_test_tx_buffer + sizeof(struct ether_header)); - struct icmphdr *icmp = (struct icmphdr *) (sgi_test_tx_buffer + sizeof(struct ether_header) + sizeof(struct iphdr)); -#else - struct iphdr *iph = (struct iphdr *) sgi_test_tx_buffer; - struct icmphdr *icmp = (struct icmphdr *) (sgi_test_tx_buffer + sizeof(struct iphdr)); -#endif - struct hostent *hp, *hp2; - struct in_addr ip_dst; - struct in_addr ip_src; - - - -#ifdef SGI_PF_PACKET - eh->ether_shost[0] = (u_int8_t)((src_mac_addrP & 0x0000FF0000000000) >> 40); - eh->ether_shost[1] = (u_int8_t)((src_mac_addrP & 0x000000FF00000000) >> 32); - eh->ether_shost[2] = (u_int8_t)((src_mac_addrP & 0x00000000FF000000) >> 24); - eh->ether_shost[3] = (u_int8_t)((src_mac_addrP & 0x0000000000FF0000) >> 16); - eh->ether_shost[4] = (u_int8_t)((src_mac_addrP & 0x000000000000FF00) >> 8); - eh->ether_shost[5] = (u_int8_t) (src_mac_addrP & 0x00000000000000FF); - - eh->ether_dhost[0] = (u_int8_t)((dst_mac_addrP & 0x0000FF0000000000) >> 40); - eh->ether_dhost[1] = (u_int8_t)((dst_mac_addrP & 0x000000FF00000000) >> 32); - eh->ether_dhost[2] = (u_int8_t)((dst_mac_addrP & 0x00000000FF000000) >> 24); - eh->ether_dhost[3] = (u_int8_t)((dst_mac_addrP & 0x0000000000FF0000) >> 16); - eh->ether_dhost[4] = (u_int8_t)((dst_mac_addrP & 0x000000000000FF00) >> 8); - eh->ether_dhost[5] = (u_int8_t) (dst_mac_addrP & 0x00000000000000FF); - eh->ether_type = htons(ETH_P_IP); -#endif - - if ((hp = gethostbyname(dst_ip_addrP)) == NULL) { - SGI_IF_DEBUG("gethostbyname() is OK.\n"); - - if ((ip_dst.s_addr = inet_addr(dst_ip_addrP)) == -1) { - fprintf(stderr, "%s: Can't resolve, unknown host.\n", dst_ip_addrP); - exit(1); - } - } else - bcopy(hp->h_addr_list[0], &ip_dst.s_addr, hp->h_length); - - /* The following source address just redundant for target to collect */ - if ((hp2 = gethostbyname(src_ip_addrP)) == NULL) { - SGI_IF_DEBUG("gethostbyname() is OK.\n"); - - if ((ip_src.s_addr = inet_addr(src_ip_addrP)) == -1) { - fprintf(stderr, "%s: Can't resolve, unknown host\n", src_ip_addrP); - exit(1); - } - } else - bcopy(hp2->h_addr_list[0], &ip_src.s_addr, hp->h_length); - - printf("Sending to %08X from spoofed %08X\n", ip_dst.s_addr, ip_src.s_addr); - /* Ip structure, check the ip.h */ - iph->version = 4; - iph->ihl = sizeof *iph >> 2; - iph->tos = 0; - iph->tot_len = htons(SGI_TEST_BUFF_LEN-sizeof(struct ether_header)); - iph->id = htons(4321); - iph->frag_off = htons(0); - iph->ttl = 255; - iph->protocol = IPPROTO_ICMP; - iph->check = htons(0); - iph->saddr = ip_src.s_addr; - iph->daddr = ip_dst.s_addr; - - icmp->type = ICMP_ECHO; - icmp->code = 0; - icmp->un.echo.id = 1000; - icmp->un.echo.sequence = 10; - /* Header checksum */ - icmp->checksum = 0; - - icmp-> checksum = in_cksum((unsigned short *)icmp, sizeof(struct icmphdr)); - iph->check = in_cksum((unsigned short *)iph, sizeof(struct iphdr)); - - /* sending time */ - if (send(sgi_dataP->sd[0], sgi_test_tx_buffer, SGI_TEST_BUFF_LEN, 0) < 0) { - SGI_IF_ERROR("sendto() error (%s:%d)\n", strerror(errno), errno); - } else - SGI_IF_DEBUG("sendto() is OK.\n"); -} - -#endif - -#ifdef ENABLE_USE_RAW_SOCKET_FOR_SGI - -void sgi_sock_raw_cleanup_handler(void *args_p) -{ - sgi_data_t *sgi_data_p; - int socket_index; - - sgi_data_p = ((sgi_read_thread_args_t*)args_p)->sgi_data; - socket_index = ((sgi_read_thread_args_t*)args_p)->socket_index; - - SGI_IF_DEBUG("Called %s\n", __FUNCTION__); -#ifdef SGI_PACKET_RX_RING - free(sgi_data_p->malloc_ring); - sgi_data_p->malloc_ring = NULL; - - if (munmap(sgi_data_p->sock_mmap_ring, CONF_RING_FRAMES * getpagesize())) { - SGI_IF_ERROR("munmap\n"); - } else { - sgi_data_p->sock_mmap_ring = NULL; - } - -#endif - - if (sgi_data_p->sd[socket_index] > 0) { - close(sgi_data_p->sd[socket_index]); - SGI_IF_DEBUG("Closed soket %d\n", sgi_data_p->sd[socket_index]); - } - - sgi_data_p->sd[socket_index] = -1; - - free(args_p); -} - -void* sgi_sock_raw_fw_2_gtpv1u_thread(void* args_p) -{ - sgi_data_t *sgi_data_p; - int socket_index; -#ifdef SGI_PACKET_RX_RING - struct pollfd pfd; - int i; - pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER; - char *names[]= { - "<", /* incoming */ - "B", /* broadcast */ - "M", /* multicast */ - "P", /* promisc */ - ">", /* outgoing */ - }; -#else - int num_bytes; -#endif - sgi_data_p = ((sgi_read_thread_args_t*)args_p)->sgi_data; - socket_index = ((sgi_read_thread_args_t*)args_p)->socket_index; - - SGI_IF_DEBUG("RX thread on raw socket started, operating on Device %s.%d\n", sgi_data_p->interface_name, socket_index+SGI_MIN_EPS_BEARER_ID); - - - pthread_cleanup_push(sgi_sock_raw_cleanup_handler, args_p); - - pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL); - - pthread_mutex_lock (&sgi_data_p->thread_started_mutex); - sgi_data_p->thread_started += 1; - pthread_mutex_unlock (&sgi_data_p->thread_started_mutex); - -#ifdef SGI_PACKET_RX_RING - i = 0; - - while (1) { - while(*(unsigned long*)sgi_data_p->malloc_ring[i].iov_base) { - struct tpacket_hdr *h=sgi_data_p->malloc_ring[i].iov_base; - struct sockaddr_ll *sll=(void *)h + TPACKET_ALIGN(sizeof(*h)); - unsigned char *bp=(unsigned char *)h + h->tp_mac; - - SGI_IF_DEBUG("%u.%.6u: if%u %s %u bytes\n", - h->tp_sec, h->tp_usec, - sll->sll_ifindex, - names[sll->sll_pkttype], - h->tp_len); - - sgi_process_raw_packet(sgi_data_p, bp, h->tp_len); - pthread_mutex_lock(&mutex); /* memory barrier */ - /* tell the kernel this packet is done with */ - h->tp_status=0; - pthread_mutex_unlock(&mutex); /* memory barrier */ - - i=(i==CONF_RING_FRAMES-1) ? 0 : i+1; - } - - /* Sleep when nothings happen */ - pfd.fd=sgi_data_p->sd; - pfd.events=POLLIN|POLLERR; - pfd.revents=0; - poll(&pfd, 1, -1); - } - -#else - - while (1) { - num_bytes = recvfrom(sgi_data_p->sd[socket_index], &sgi_data_p->recv_buffer[0][socket_index], SGI_BUFFER_RECV_LEN, 0, NULL, NULL); - - if (num_bytes > 0) { - SGI_IF_DEBUG("recvfrom bearer id %d %d bytes\n", socket_index + SGI_MIN_EPS_BEARER_ID, num_bytes); -#ifdef SGI_SOCKET_RAW - sgi_process_raw_packet(sgi_data_p, &sgi_data_p->recv_buffer[0][socket_index], num_bytes); -#else -#ifdef SGI_SOCKET_DGRAM - sgi_process_dgram_packet(sgi_data_p, &sgi_data_p->recv_buffer[0][socket_index], num_bytes); -#endif -#endif - } else { - SGI_IF_DEBUG("recvfrom bearer id %d %d (%s:%d)\n", socket_index + SGI_MIN_EPS_BEARER_ID, num_bytes, strerror(errno), errno); - } - } - -#endif - pthread_cleanup_pop(0); - pthread_exit(NULL); -} -#endif - diff --git a/openair-cn/SGI/sgi_task.c b/openair-cn/SGI/sgi_task.c deleted file mode 100644 index aa7e99eef5..0000000000 --- a/openair-cn/SGI/sgi_task.c +++ /dev/null @@ -1,361 +0,0 @@ -/******************************************************************************* - OpenAirInterface - Copyright(c) 1999 - 2014 Eurecom - - OpenAirInterface is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - - OpenAirInterface is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with OpenAirInterface.The full GNU General Public License is - included in this distribution in the file called "COPYING". If not, - see . - - Contact Information - OpenAirInterface Admin: openair_admin@eurecom.fr - OpenAirInterface Tech : openair_tech@eurecom.fr - OpenAirInterface Dev : openair4g-devel@eurecom.fr - - Address : Eurecom, Compus SophiaTech 450, route des chappes, 06451 Biot, France. - - *******************************************************************************/ -/*! \file sgi_task.c -* \brief -* \author Lionel Gauthier -* \company Eurecom -* \email: lionel.gauthier@eurecom.fr -*/ - -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include - -//----------------------------------------------------------------------------- -#include "assertions.h" -#include "mme_config.h" -#include "intertask_interface.h" -#include "sgi.h" - -//----------------------------------------------------------------------------- -static void* sgi_task_thread(void *args_p); -static int sgi_create_endpoint_request(sgi_data_t *sgi_dataP, SGICreateEndpointReq *req_p); -static int sgi_update_endpoint_request(sgi_data_t *sgi_dataP, SGIUpdateEndpointReq *req_p); -static int sgi_init_phase2(sgi_data_t *sgi_data_pP); -//----------------------------------------------------------------------------- -static pthread_t fw_2_sgi_task_thread; -//----------------------------------------------------------------------------- -static void* sgi_task_thread(void *args_p) -//----------------------------------------------------------------------------- -{ - sgi_data_t *sgi_data_p; - - if (args_p == NULL) { - return NULL; - } - - itti_mark_task_ready(TASK_FW_IP); - - sgi_data_p = (sgi_data_t *)args_p; - - - while(1) { - /* Trying to fetch a message from the message queue. - * If the queue is empty, this function will block till a - * message is sent to the task. - */ - MessageDef *received_message_p; - itti_receive_msg(TASK_FW_IP, &received_message_p); - - DevAssert(received_message_p != NULL); - - if (sgi_data_p->hss_associated) { - switch (ITTI_MSG_ID(received_message_p)) { - case GTPV1U_TUNNEL_DATA_IND: { - /* We received data from GTPV1_U incoming from an UE. - * Forward it host adapter. - */ - Gtpv1uTunnelDataInd *data_ind_p; - data_ind_p = &received_message_p->ittiMsg.gtpv1uTunnelDataInd; -#ifdef SGI_SOCKET_RAW - sgi_send_data(&data_ind_p->buffer[data_ind_p->offset], data_ind_p->length, sgi_data_p, data_ind_p->local_S1u_teid); -#else -#ifdef SGI_SOCKET_DGRAM - sgi_dgram_send_data(&data_ind_p->buffer[data_ind_p->offset], data_ind_p->length, sgi_data_p, data_ind_p->local_S1u_teid); -#endif -#endif - /* Buffer is no longer needed, free it */ - itti_free(ITTI_MSG_ORIGIN_ID(received_message_p), data_ind_p->buffer); - } - break; - - case SGI_CREATE_ENDPOINT_REQUEST: { - SGICreateEndpointReq *req_p; - req_p = &received_message_p->ittiMsg.sgiCreateEndpointReq; - sgi_create_endpoint_request(sgi_data_p, req_p); - } - break; - - case SGI_UPDATE_ENDPOINT_REQUEST: { - SGIUpdateEndpointReq *req_p; - req_p = &received_message_p->ittiMsg.sgiUpdateEndpointReq; - sgi_update_endpoint_request(sgi_data_p, req_p); - } - break; - - default: { - SGI_IF_ERROR("Unkwnon message ID %d:%s\n", - ITTI_MSG_ID(received_message_p), ITTI_MSG_NAME(received_message_p)); - } - break; - } - } else { - switch (ITTI_MSG_ID(received_message_p)) { - case ACTIVATE_MESSAGE: { - sgi_data_p->hss_associated = 1; -#if !defined(ENABLE_USE_GTPU_IN_KERNEL) - SGI_IF_DEBUG("HSS ASSOCIATED, CAN START VLANS (bug in freediameter)"); - sgi_init_phase2(sgi_data_p); -#endif - } - break; - - default: { - SGI_IF_ERROR("Unkwnon or ignored message ID %d:%s\n", - ITTI_MSG_ID(received_message_p), ITTI_MSG_NAME(received_message_p)); - } - break; - } - } - - itti_free(ITTI_MSG_ORIGIN_ID(received_message_p), received_message_p); - received_message_p = NULL; - } - - return NULL; -} - - -//------------------------------------------------------ -static int sgi_create_endpoint_request(sgi_data_t *sgi_dataP, SGICreateEndpointReq *req_p) -//------------------------------------------------------ -{ - SGICreateEndpointResp *sgi_create_endpoint_resp_p; - MessageDef *message_p; - sgi_teid_mapping_t *mapping; - - SGI_IF_DEBUG("Rx IP_FW_CREATE_SGI_ENDPOINT_REQUEST, Context: S-GW S11 teid %u, S-GW S1U teid %u EPS bearer id %u\n", - req_p->context_teid, req_p->sgw_S1u_teid, req_p->eps_bearer_id); - - message_p = itti_alloc_new_message(TASK_FW_IP, SGI_CREATE_ENDPOINT_RESPONSE); - - if (message_p == NULL) { - return -1; - } - - sgi_create_endpoint_resp_p = &message_p->ittiMsg.sgiCreateEndpointResp; - sgi_create_endpoint_resp_p->context_teid = req_p->context_teid; - sgi_create_endpoint_resp_p->sgw_S1u_teid = req_p->sgw_S1u_teid; - sgi_create_endpoint_resp_p->eps_bearer_id = req_p->eps_bearer_id; - sgi_create_endpoint_resp_p->pdn_type = req_p->pdn_type; - sgi_create_endpoint_resp_p->paa = req_p->paa; - sgi_create_endpoint_resp_p->status = SGI_STATUS_OK; - - if (hashtable_is_key_exists(sgi_dataP->teid_mapping, req_p->sgw_S1u_teid) == HASH_TABLE_OK) { - SGI_IF_ERROR("SGI_STATUS_ERROR_CONTEXT_ALREADY_EXIST Context: S11 teid %u\n", req_p->context_teid); - sgi_create_endpoint_resp_p->status = SGI_STATUS_ERROR_CONTEXT_ALREADY_EXIST; - } else { - mapping = malloc(sizeof(sgi_teid_mapping_t)); - - if (mapping == NULL) { - sgi_create_endpoint_resp_p->status = SGI_STATUS_ERROR_NO_MEMORY_AVAILABLE; - } else { - memset(mapping, 0 , sizeof(sgi_teid_mapping_t)); - - mapping->eps_bearer_id = req_p->eps_bearer_id; - mapping->enb_S1U_teid = -1; - - if (hashtable_insert(sgi_dataP->teid_mapping, req_p->sgw_S1u_teid, mapping) != 0) { - SGI_IF_ERROR("SGI_STATUS_ERROR_SYSTEM_FAILURE Context: S11 teid %u\n", req_p->context_teid); - sgi_create_endpoint_resp_p->status = SGI_STATUS_ERROR_SYSTEM_FAILURE; - free(mapping); - } else { - SGI_IF_ERROR("SGI_STATUS_OK Context: S11 teid %u\n", req_p->context_teid); - sgi_create_endpoint_resp_p->status = SGI_STATUS_OK; - } - } - } - - return itti_send_msg_to_task(TASK_SPGW_APP, INSTANCE_DEFAULT, message_p); -} - -//------------------------------------------------------ -static int sgi_update_endpoint_request(sgi_data_t *sgi_dataP, SGIUpdateEndpointReq *req_p) -//------------------------------------------------------ -{ - SGIUpdateEndpointResp *sgi_update_endpoint_resp_p = NULL; - MessageDef *message_p = NULL; - sgi_teid_mapping_t *mapping = NULL; - - SGI_IF_DEBUG("Rx IP_FW_UPDATE_SGI_ENDPOINT_REQUEST, Context: S-GW S11 teid %u, S-GW S1U teid %u EPS bearer id %u\n", - req_p->context_teid, req_p->sgw_S1u_teid, req_p->eps_bearer_id); - - message_p = itti_alloc_new_message(TASK_FW_IP, SGI_UPDATE_ENDPOINT_RESPONSE); - - if (message_p == NULL) { - return -1; - } - - sgi_update_endpoint_resp_p = &message_p->ittiMsg.sgiUpdateEndpointResp; - sgi_update_endpoint_resp_p->context_teid = req_p->context_teid; - sgi_update_endpoint_resp_p->sgw_S1u_teid = req_p->sgw_S1u_teid; - sgi_update_endpoint_resp_p->eps_bearer_id = req_p->eps_bearer_id; - sgi_update_endpoint_resp_p->enb_S1u_teid = req_p->enb_S1u_teid; - sgi_update_endpoint_resp_p->status = SGI_STATUS_OK; - - if (hashtable_get(sgi_dataP->teid_mapping, req_p->sgw_S1u_teid, (void**)&mapping) == HASH_TABLE_OK) { - mapping->enb_S1U_teid = req_p->enb_S1u_teid; - } else { - SGI_IF_ERROR("SGI_STATUS_ERROR_CONTEXT_NOT_FOUND Context: S11 teid %u\n", req_p->context_teid); - sgi_update_endpoint_resp_p->status = SGI_STATUS_ERROR_CONTEXT_NOT_FOUND; - } - - return itti_send_msg_to_task(TASK_SPGW_APP, INSTANCE_DEFAULT, message_p); -} - -//----------------------------------------------------------------------------- -int sgi_init(const pgw_config_t *pgw_config_p) -//----------------------------------------------------------------------------- -{ - - volatile sgi_data_t *sgi_data_p; - int len; - int i; - - SGI_IF_DEBUG("Initializing FW_IP task interface\n"); - - sgi_data_p = malloc(sizeof(sgi_data_t)); - memset((void *)sgi_data_p, 0, sizeof(sgi_data_t)); - - for (i=0; i < SGI_MAX_EPS_BEARERS_PER_USER; i++) { - sgi_data_p->sd[i] = -1; - } - - sgi_data_p->thread_started = 0; - pthread_mutex_init (&sgi_data_p->thread_started_mutex, NULL); - - sgi_data_p->teid_mapping = hashtable_create (SGI_MAX_EPS_BEARERS, NULL, NULL); - - if (sgi_data_p->teid_mapping == NULL) { - SGI_IF_ERROR("Failed to create SGI hashtable teid_mapping\n"); - return -1; - } - - sgi_data_p->addr_v4_mapping = hashtable_create (SGI_MAX_SERVED_USERS_PER_PGW, NULL, NULL); - - if (sgi_data_p->addr_v4_mapping == NULL) { - SGI_IF_ERROR("Failed to create SGI hashtable addr_v4_mapping\n"); - return -1; - } - - sgi_data_p->addr_v6_mapping = obj_hashtable_create (SGI_MAX_SERVED_USERS_PER_PGW, NULL, NULL, NULL); - - if (sgi_data_p->addr_v6_mapping == NULL) { - SGI_IF_ERROR("Failed to create SGI hashtable addr_v6_mapping\n"); - return -1; - } - - - len = strlen(pgw_config_p->ipv4.pgw_interface_name_for_SGI); - sgi_data_p->interface_name = calloc(len + 1, sizeof(char)); - memcpy(sgi_data_p->interface_name, pgw_config_p->ipv4.pgw_interface_name_for_SGI, len); - sgi_data_p->interface_name[len] = '\0'; - sgi_data_p->ipv4_addr = pgw_config_p->ipv4.pgw_ipv4_address_for_SGI; - - - if (pthread_create(&fw_2_sgi_task_thread, NULL, &sgi_task_thread, (void *)sgi_data_p) < 0) { - SGI_IF_ERROR("sgi_task_thread pthread_create: %s", strerror(errno)); - return -1; - } - - return 0; -} - -int sgi_init_phase2(sgi_data_t *sgi_data_pP) -{ - int i; - - if (strcmp(sgi_data_pP->interface_name, PGW_CONFIG_STRING_INTERFACE_DISABLED) != 0) { - sgi_data_pP->interface_index = if_nametoindex(sgi_data_pP->interface_name); - - if (sgi_create_sockets(sgi_data_pP) < 0) { - SGI_IF_ERROR("Could not create socket, leaving thread %s\n", __FUNCTION__); - free(sgi_data_pP); - return -1; - } - } else { - SGI_IF_WARNING("SGI interface disabled by config file\n"); - } - - - if (strcmp(sgi_data_pP->interface_name, PGW_CONFIG_STRING_INTERFACE_DISABLED) != 0) { -#ifdef ENABLE_USE_PCAP_FOR_SGI - - if (pthread_create(&sgi_data_pP->capture_on_sgi_if_thread, NULL, &sgi_pcap_fw_2_gtpv1u_thread, (void *)sgi_data_pP) < 0) { - SGI_IF_ERROR("sgi_pcap_fw_2_gtpv1u_thread pthread_create: %s", strerror(errno)); - return -1; - } - -#endif -#ifdef ENABLE_USE_NETFILTER_FOR_SGI - - if (pthread_create(&sgi_data_pP->capture_on_sgi_if_thread, NULL, &sgi_nf_fw_2_gtpv1u_thread, (void *)sgi_data_pP) < 0) { - SGI_IF_ERROR("sgi_nf_fw_2_gtpv1u_thread pthread_create: %s", strerror(errno)); - return -1; - } - -#endif - //#if 0 -#ifdef ENABLE_USE_RAW_SOCKET_FOR_SGI - - for (i=0; i < SGI_MAX_EPS_BEARERS_PER_USER; i++) { - sgi_read_thread_args_t *args_p = malloc(sizeof(sgi_read_thread_args_t)); - args_p->sgi_data = sgi_data_pP; - args_p->socket_index = i; - - if (pthread_create(&sgi_data_pP->capture_on_sgi_if_thread, NULL, &sgi_sock_raw_fw_2_gtpv1u_thread, (void *)args_p) < 0) { - SGI_IF_ERROR("sgi_sock_raw_fw_2_gtpv1u_thread pthread_create: %s", strerror(errno)); - return -1; - } - } - -#endif - //#endif - } - - while (sgi_data_pP->thread_started != SGI_MAX_EPS_BEARERS_PER_USER ) { - usleep(1000); - } - - /*SGI_IF_DEBUG("ARP RESOLVING ROUTER...\n"); - while (sgi_data_p->hw_address_of_router_captured == 0) { - sgi_send_arp_request(sgi_data_p, "router.eur"); - sleep(2); - }*/ - SGI_IF_DEBUG("Initializing FW_IP task interface: DONE\n"); - return 0; -} diff --git a/openair-cn/SGI/sgi_util.c b/openair-cn/SGI/sgi_util.c deleted file mode 100755 index 879b451e50..0000000000 --- a/openair-cn/SGI/sgi_util.c +++ /dev/null @@ -1,304 +0,0 @@ -/******************************************************************************* - OpenAirInterface - Copyright(c) 1999 - 2014 Eurecom - - OpenAirInterface is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - - OpenAirInterface is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with OpenAirInterface.The full GNU General Public License is - included in this distribution in the file called "COPYING". If not, - see . - - Contact Information - OpenAirInterface Admin: openair_admin@eurecom.fr - OpenAirInterface Tech : openair_tech@eurecom.fr - OpenAirInterface Dev : openair4g-devel@eurecom.fr - - Address : Eurecom, Compus SophiaTech 450, route des chappes, 06451 Biot, France. - - *******************************************************************************/ -/*! \file sgi_util.c -* \brief -* \author Lionel Gauthier -* \company Eurecom -* \email: lionel.gauthier@eurecom.fr -*/ -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include "sgi.h" - -#define FW_2_PRINT_BUFFER_LEN 10000 -static char fw_2_print_buffer[FW_2_PRINT_BUFFER_LEN]; -//----------------------------------------------------------------------------- -void sgi_print_hex_octets(unsigned char* dataP, unsigned long sizeP) -//----------------------------------------------------------------------------- -{ - unsigned long octet_index = 0; - unsigned long buffer_marker = 0; - unsigned char aindex; - struct timeval tv; - struct timezone tz; - char timeofday[64]; - unsigned int h,m,s; - - if (dataP == NULL) { - return; - } - - gettimeofday(&tv, &tz); - h = (tv.tv_sec/3600) % 24; - m = (tv.tv_sec / 60) % 60; - s = tv.tv_sec % 60; - snprintf(timeofday, 64, "%02d:%02d:%02d.%06d", h,m,s,tv.tv_usec); - - SGI_IF_DEBUG("%s------+-------------------------------------------------+\n",timeofday); - SGI_IF_DEBUG("%s | 0 1 2 3 4 5 6 7 8 9 a b c d e f |\n",timeofday); - SGI_IF_DEBUG("%s------+-------------------------------------------------+\n",timeofday); - - for (octet_index = 0; octet_index < sizeP; octet_index++) { - if ((octet_index % 16) == 0) { - if (octet_index != 0) { - buffer_marker+=snprintf(&fw_2_print_buffer[buffer_marker], FW_2_PRINT_BUFFER_LEN - buffer_marker, " |\n"); - SGI_IF_DEBUG("%s%s",timeofday, fw_2_print_buffer); - buffer_marker = 0; - } - - buffer_marker+=snprintf(&fw_2_print_buffer[buffer_marker], FW_2_PRINT_BUFFER_LEN - buffer_marker, " %04ld |", octet_index); - } - - /* - * Print every single octet in hexadecimal form - */ - buffer_marker+=snprintf(&fw_2_print_buffer[buffer_marker], FW_2_PRINT_BUFFER_LEN - buffer_marker, " %02x", dataP[octet_index]); - /* - * Align newline and pipes according to the octets in groups of 2 - */ - } - - /* - * Append enough spaces and put final pipe - */ - for (aindex = octet_index; aindex < 16; ++aindex) - buffer_marker+=snprintf(&fw_2_print_buffer[buffer_marker], FW_2_PRINT_BUFFER_LEN - buffer_marker, " "); - - //SGI_IF_DEBUG(" "); - buffer_marker+=snprintf(&fw_2_print_buffer[buffer_marker], FW_2_PRINT_BUFFER_LEN - buffer_marker, " |\n"); - SGI_IF_DEBUG("%s%s",timeofday,fw_2_print_buffer); -} - -//----------------------------------------------------------------------------- -char* sgi_status_2_str(SGIStatus_t statusP) -//----------------------------------------------------------------------------- -{ - switch (statusP) { - case SGI_STATUS_OK: - return "SGI_STATUS_OK"; - break; - - case SGI_STATUS_ERROR_CONTEXT_ALREADY_EXIST: - return "SGI_STATUS_ERROR_CONTEXT_ALREADY_EXIST"; - break; - - case SGI_STATUS_ERROR_CONTEXT_NOT_FOUND: - return "SGI_STATUS_ERROR_CONTEXT_NOT_FOUND"; - break; - - case SGI_STATUS_ERROR_INVALID_MESSAGE_FORMAT: - return "SGI_STATUS_ERROR_INVALID_MESSAGE_FORMAT"; - break; - - case SGI_STATUS_ERROR_SERVICE_NOT_SUPPORTED: - return "SGI_STATUS_ERROR_SERVICE_NOT_SUPPORTED"; - break; - - case SGI_STATUS_ERROR_SYSTEM_FAILURE: - return "SGI_STATUS_ERROR_SYSTEM_FAILURE"; - break; - - case SGI_STATUS_ERROR_NO_RESOURCES_AVAILABLE: - return "SGI_STATUS_ERROR_NO_RESOURCES_AVAILABLE"; - break; - - case SGI_STATUS_ERROR_NO_MEMORY_AVAILABLE: - return "SGI_STATUS_ERROR_NO_MEMORY_AVAILABLE"; - break; - - default: - return "UNKNOWN_SGI_STATUS"; - } -} - -//----------------------------------------------------------------------------- -char* sgi_arpopcode_2_str(unsigned short int opcodeP) -//----------------------------------------------------------------------------- -{ - switch (opcodeP) { - case ARPOP_REQUEST: - return "ARPOP_REQUEST"; - break; - - case ARPOP_REPLY: - return "ARPOP_REPLY"; - break; - - case ARPOP_RREQUEST: - return "ARPOP_RREQUEST"; - break; - - case ARPOP_RREPLY: - return "ARPOP_RREPLY"; - break; - - case ARPOP_InREQUEST: - return "ARPOP_InREQUEST"; - break; - - case ARPOP_InREPLY: - return "ARPOP_InREPLY"; - break; - - case ARPOP_NAK: - return "ARPOP_NAK"; - break; - - default: - return "UNKNOWN_ARP_OPCODE"; - } -} -//----------------------------------------------------------------------------- -unsigned short in_cksum(unsigned short *addr, int len) -//----------------------------------------------------------------------------- -{ - register int sum = 0; - u_short answer = 0; - register u_short *w = addr; - register int nleft = len; - - /* - * Our algorithm is simple, using a 32 bit accumulator (sum), we add - * sequential 16 bit words to it, and at the end, fold back all the - * carry bits from the top 16 bits into the lower 16 bits. - */ - while (nleft > 1) { - sum += *w++; - nleft -= 2; - } - - /* mop up an odd byte, if necessary */ - if (nleft == 1) { - *(u_char *) (&answer) = *(u_char *) w; - sum += answer; - } - - /* add back carry outs from top 16 bits to low 16 bits */ - sum = (sum >> 16) + (sum & 0xffff); /* add hi 16 to low 16 */ - sum += (sum >> 16); /* add carry */ - answer = ~sum; /* truncate to 16 bits */ - return (answer); -} -//----------------------------------------------------------------------------- -void sgi_send_arp_request(sgi_data_t *sgi_dataP, char* dst_ip_addrP) -//----------------------------------------------------------------------------- -{ - char buffer[100]; // ARP request is 60 bytes including ethernet - struct arphdr_s *arph = (struct arphdr_s *)(buffer); - struct hostent *hp = NULL; - uint32_t i; - struct in_addr ip_dst; - struct ifreq ifr; - struct iovec iov[2]; - - sgi_dataP->eh.ether_dhost[0] = (u_int8_t)(0xFF); - sgi_dataP->eh.ether_dhost[1] = (u_int8_t)(0xFF); - sgi_dataP->eh.ether_dhost[2] = (u_int8_t)(0xFF); - sgi_dataP->eh.ether_dhost[3] = (u_int8_t)(0xFF); - sgi_dataP->eh.ether_dhost[4] = (u_int8_t)(0xFF); - sgi_dataP->eh.ether_dhost[5] = (u_int8_t)(0xFF); - - // get IP address of the default virtual interface - ifr.ifr_addr.sa_family = AF_INET; - sprintf(ifr.ifr_name, "%s.%d",sgi_dataP->interface_name,SGI_MIN_EPS_BEARER_ID); - - if (ioctl(sgi_dataP->sd[0], SIOCGIFADDR, &ifr) != 0) { - SGI_IF_ERROR("Error during IP ADDRESS RETRIEVAL ON SGI INTERFACE (%s:%d)\n",strerror(errno), errno); - exit (-1); - } - - if ((hp = gethostbyname(dst_ip_addrP)) == NULL) { - SGI_IF_DEBUG("gethostbyname() is OK.\n"); - - if ((ip_dst.s_addr = inet_addr(dst_ip_addrP)) == -1) { - SGI_IF_ERROR("%s: Can't resolve, unknown host.\n", dst_ip_addrP); - exit(1); - } - } else - bcopy(hp->h_addr_list[0], &ip_dst.s_addr, hp->h_length); - - arph->ar_hrd = htons(ARPHRD_ETHER); - arph->ar_pro = htons(ETH_P_IP); - arph->ar_hln = ETH_ALEN; - arph->ar_pln = 4; - arph->ar_op = htons(ARPOP_REQUEST); - - // sources - memcpy(arph->ar_sha, sgi_dataP->eh.ether_shost, ETH_ALEN); - - i = ((struct sockaddr_in *)&ifr.ifr_addr)->sin_addr.s_addr; - arph->ar_sip[3] = i >> 24; - arph->ar_sip[2] = (i & 0x00FF0000) >> 16; - arph->ar_sip[1] = (i & 0x0000FF00) >> 8; - arph->ar_sip[0] = (i & 0x000000FF); - - // destinations - memset(arph->ar_tha, 0, ETH_ALEN); - - i = ip_dst.s_addr; - arph->ar_tip[3] = i >> 24; - arph->ar_tip[2] = (i & 0x00FF0000) >> 16; - arph->ar_tip[1] = (i & 0x0000FF00) >> 8; - arph->ar_tip[0] = (i & 0x000000FF); - // save ip address of router for comparing with ARP REPLY - sgi_dataP->ipv4_addr_of_router = ip_dst.s_addr; - - iov[0].iov_base = &sgi_dataP->eh; - iov[0].iov_len = sizeof(sgi_dataP->eh); - iov[1].iov_base = (void *)buffer; - iov[1].iov_len = sizeof (struct arphdr) + ETH_ALEN*2 + 4*2; -#ifdef VLAN8021Q - sgi_data_p->eh.ether_vlan8021q.vlan_tpid = htons(0x8100); - sgi_dataP->eh.ether_vlan8021q.vlan_tci = htons(0x7000 | 0x0000 | SGI_MIN_EPS_BEARER_ID); -#endif - sgi_dataP->eh.ether_type = htons(ETH_P_ARP); - - sgi_print_hex_octets(iov[0].iov_base, iov[0].iov_len); - sgi_print_hex_octets(iov[1].iov_base, iov[1].iov_len); - - if (writev(sgi_dataP->sd[0], (const struct iovec *)&iov, 2) < 0) { - SGI_IF_ERROR("Error during send ARP to socket %d bearer id %d : (%s:%d)\n", - sgi_dataP->sd[0], - SGI_MIN_EPS_BEARER_ID, - strerror(errno), - errno); - exit(1); - } - -} -