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Commit 2e8e8227 authored by Lionel Gauthier's avatar Lionel Gauthier
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output traffic is now masqueraded depending on EPC config file if epc run on... 

output traffic is now masqueraded depending on EPC config file if epc run on same host than eNB.!!@@@###%&!?!!!

git-svn-id: http://svn.eurecom.fr/openair4G/trunk@6251 818b1a75-f10b-46b9-bf7c-635c3b92a50f
parent 5708ab17
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Inline Side-by-side
Showing with 184 additions and 103 deletions
openair-cn/SGW-LITE/sgw_lite_handlers.c
View file @ 2e8e8227
......@@ -52,6 +52,7 @@
#include "sgw_lite_context_manager.h"
#include "sgw_lite.h"
#include "pgw_lite_paa.h"
#include "spgw_config.h"
extern sgw_app_t sgw_app;
......@@ -611,7 +612,6 @@ sgw_lite_handle_sgi_endpoint_updated(
task_id_t to_task;
#if defined (ENABLE_USE_GTPU_IN_KERNEL)
static uint8_t iptable_uplink_remove_gtpu = FALSE;
char *interface_name_p = NULL;
#endif
#if defined(ENABLE_STANDALONE_EPC)
......@@ -690,22 +690,37 @@ sgw_lite_handle_sgi_endpoint_updated(
exit (-1);
}
//use API when prototype validated
ret = system(cmd);
ret = spgw_system(cmd, SPGW_ABORT_ON_ERROR);
if (ret < 0) {
SPGW_APP_ERROR("ERROR in setting up downlink TUNNEL\n");
}
if (iptable_uplink_remove_gtpu == FALSE) {
if (strncasecmp("tun",sgw_app.sgw_interface_name_for_S1u_S12_S4_up, strlen("tun")) == 0) {
interface_name_p = "lo";
} else {
interface_name_p = sgw_app.sgw_interface_name_for_S1u_S12_S4_up;
ret = snprintf(cmd,
256,
"iptables -t raw -I OUTPUT -s %u.%u.%u.%u -d %u.%u.%u.%u -p udp --dport 2152 -j GTPURH --action remove",
eps_bearer_entry_p->enb_ip_address_for_S1u.address.ipv4_address[0],
eps_bearer_entry_p->enb_ip_address_for_S1u.address.ipv4_address[1],
eps_bearer_entry_p->enb_ip_address_for_S1u.address.ipv4_address[2],
eps_bearer_entry_p->enb_ip_address_for_S1u.address.ipv4_address[3],
sgw_app.sgw_ip_address_for_S1u_S12_S4_up & 0x000000FF,
(sgw_app.sgw_ip_address_for_S1u_S12_S4_up & 0x0000FF00) >> 8,
(sgw_app.sgw_ip_address_for_S1u_S12_S4_up & 0x00FF0000) >> 16,
(sgw_app.sgw_ip_address_for_S1u_S12_S4_up & 0xFF000000) >> 24);
if ((ret < 0) || (ret > 256)) {
SPGW_APP_ERROR("ERROR in preparing uplink tunnel, tune string length\n");
exit (-1);
}
SPGW_APP_DEBUG("%s\n", cmd);
ret = spgw_system(cmd, SPGW_ABORT_ON_ERROR);
} else {
ret = snprintf(cmd,
256,
// no "-p udp --dport 2152" because of fragmented packets
"iptables -t raw -I PREROUTING -i %s -s %u.%u.%u.%u -d %u.%u.%u.%u -p udp --dport 2152 -j GTPURH --action remove",
interface_name_p,
sgw_app.sgw_interface_name_for_S1u_S12_S4_up,
eps_bearer_entry_p->enb_ip_address_for_S1u.address.ipv4_address[0],
eps_bearer_entry_p->enb_ip_address_for_S1u.address.ipv4_address[1],
eps_bearer_entry_p->enb_ip_address_for_S1u.address.ipv4_address[2],
......@@ -719,15 +734,16 @@ sgw_lite_handle_sgi_endpoint_updated(
SPGW_APP_ERROR("ERROR in preparing uplink tunnel, tune string length\n");
exit (-1);
}
//use API when prototype validated
SPGW_APP_DEBUG("%s\n", cmd);
ret = system(cmd);
ret = spgw_system(cmd, SPGW_ABORT_ON_ERROR);
if (ret < 0) {
SPGW_APP_ERROR("ERROR in setting up uplink TUNNEL\n");
} else {
iptable_uplink_remove_gtpu = TRUE;
}
}
}
#endif
}
return itti_send_msg_to_task(to_task, INSTANCE_DEFAULT, message_p);
......
openair-cn/SGW-LITE/sgw_lite_task.c
View file @ 2e8e8227
......@@ -123,31 +123,37 @@ int sgw_lite_init(char* config_file_name_pP)
{
SPGW_APP_DEBUG("Initializing SPGW-APP task interface\n");
#if defined (ENABLE_USE_GTPU_IN_KERNEL)
spgw_system("rmmod iptable_raw > /dev/null 2>&1", 0);
spgw_system("rmmod iptable_mangle > /dev/null 2>&1", 0);
spgw_system("rmmod iptable_nat > /dev/null 2>&1", 0);
spgw_system("rmmod iptable_filter > /dev/null 2>&1", 0);
spgw_system("rmmod ip_tables > /dev/null 2>&1", 0);
spgw_system("rmmod xt_state xt_mark xt_GTPUAH xt_GTPURH xt_tcpudp xt_connmark ipt_LOG ipt_MASQUERADE > /dev/null 2>&1", 0);
spgw_system("rmmod x_tables > /dev/null 2>&1", 0);
spgw_system("rmmod nf_conntrack_netlink nfnetlink nf_nat nf_conntrack_ipv4 nf_conntrack > /dev/null 2>&1", 0);
spgw_system("modprobe ip_tables", 1);
spgw_system("modprobe x_tables", 1);
spgw_system("iptables -P INPUT ACCEPT", 0);
spgw_system("iptables -F INPUT", 0);
spgw_system("iptables -P OUTPUT ACCEPT", 0);
spgw_system("iptables -F OUTPUT", 0);
spgw_system("iptables -P FORWARD ACCEPT", 0);
spgw_system("iptables -F FORWARD", 0);
spgw_system("iptables -t nat -F", 0);
spgw_system("iptables -t mangle -F", 0);
spgw_system("iptables -t filter -F", 0);
spgw_system("iptables -t raw -F", 0);
spgw_system("ip route flush cache", 0);
spgw_system("sysctl -w net.ipv4.netfilter.ip_conntrack_max=10000", 0);
spgw_system("sysctl -w net.ipv4.ip_forward=1", 0);
spgw_system("insmod $OPENAIRCN_DIR/GTPV1-U/GTPUAH/Bin/xt_GTPUAH.ko", 1);
spgw_system("insmod $OPENAIRCN_DIR/GTPV1-U/GTPURH/Bin/xt_GTPURH.ko", 1);
spgw_system("modprobe ip_tables", SPGW_ABORT_ON_ERROR);
spgw_system("modprobe x_tables", SPGW_ABORT_ON_ERROR);
spgw_system("iptables -P INPUT ACCEPT", SPGW_WARN_ON_ERROR);
spgw_system("iptables -F INPUT", SPGW_WARN_ON_ERROR);
spgw_system("iptables -P OUTPUT ACCEPT", SPGW_WARN_ON_ERROR);
spgw_system("iptables -F OUTPUT", SPGW_WARN_ON_ERROR);
spgw_system("iptables -P FORWARD ACCEPT", SPGW_WARN_ON_ERROR);
spgw_system("iptables -F FORWARD", SPGW_WARN_ON_ERROR);
spgw_system("iptables -t nat -F", SPGW_WARN_ON_ERROR);
spgw_system("iptables -t mangle -F", SPGW_WARN_ON_ERROR);
spgw_system("iptables -t filter -F", SPGW_WARN_ON_ERROR);
spgw_system("iptables -t raw -F", SPGW_WARN_ON_ERROR);
spgw_system("ip route flush cache", SPGW_WARN_ON_ERROR);
spgw_system("rmmod iptable_raw > /dev/null 2>&1", SPGW_WARN_ON_ERROR);
spgw_system("rmmod iptable_mangle > /dev/null 2>&1", SPGW_WARN_ON_ERROR);
spgw_system("rmmod iptable_nat > /dev/null 2>&1", SPGW_WARN_ON_ERROR);
spgw_system("rmmod iptable_filter > /dev/null 2>&1", SPGW_WARN_ON_ERROR);
spgw_system("rmmod ip_tables > /dev/null 2>&1", SPGW_WARN_ON_ERROR);
spgw_system("rmmod xt_state xt_mark xt_GTPUAH xt_GTPURH xt_tcpudp xt_connmark ipt_LOG ipt_MASQUERADE > /dev/null 2>&1", SPGW_WARN_ON_ERROR);
spgw_system("rmmod x_tables > /dev/null 2>&1", SPGW_WARN_ON_ERROR);
spgw_system("rmmod nf_conntrack_netlink nfnetlink nf_nat nf_conntrack_ipv4 nf_conntrack > /dev/null 2>&1", SPGW_WARN_ON_ERROR);
spgw_system("modprobe ip_tables", SPGW_ABORT_ON_ERROR);
spgw_system("modprobe x_tables", SPGW_ABORT_ON_ERROR);
spgw_system("sysctl -w net.ipv4.netfilter.ip_conntrack_max=16000", SPGW_WARN_ON_ERROR);
spgw_system("sysctl -w net.ipv4.ip_forward=1", SPGW_WARN_ON_ERROR);
spgw_system("sysctl -w net.ipv4.conf.all.accept_local=1",SPGW_WARN_ON_ERROR);
spgw_system("sysctl -w net.ipv4.conf.all.log_martians=1",SPGW_WARN_ON_ERROR);
spgw_system("sysctl -w net.ipv4.conf.all.route_localnet=1",SPGW_WARN_ON_ERROR);
spgw_system("sysctl -w net.ipv4.conf.all.rp_filter=0",SPGW_WARN_ON_ERROR);
spgw_system("insmod $OPENAIR_TARGETS/bin/xt_GTPUAH.ko", SPGW_ABORT_ON_ERROR);
spgw_system("insmod $OPENAIR_TARGETS/bin/xt_GTPURH.ko", SPGW_ABORT_ON_ERROR);
#endif
spgw_config_init(config_file_name_pP, &spgw_config);
pgw_lite_load_pool_ip_addresses();
......
openair-cn/SGW-LITE/spgw_config.c
View file @ 2e8e8227
......@@ -131,7 +131,7 @@ sgw_ipv6_mask_in6_addr(
}
int spgw_system(char *command_pP, int abort_on_errorP) {
int spgw_system(char *command_pP, spgw_system_abort_control_e abort_on_errorP) {
int ret = -1;
if (command_pP) {
SPGW_APP_INFO("system command: %s\n",command_pP);
......@@ -158,7 +158,7 @@ int spgw_config_process(spgw_config_t* config_pP) {
config_pP->sgw_config.ipv4.sgw_interface_name_for_S1u_S12_S4_up,
config_pP->sgw_config.ipv4.sgw_interface_name_for_S1u_S12_S4_up
) > 0) {
ret += spgw_system(system_cmd, 1);
ret += spgw_system(system_cmd, SPGW_ABORT_ON_ERROR);
} else {
SPGW_APP_ERROR("Del %s\n", config_pP->sgw_config.ipv4.sgw_interface_name_for_S1u_S12_S4_up);
ret = -1;
......@@ -167,7 +167,7 @@ int spgw_config_process(spgw_config_t* config_pP) {
"openvpn --mktun --dev %s;sync;ifconfig %s up;sync",
config_pP->sgw_config.ipv4.sgw_interface_name_for_S1u_S12_S4_up,
config_pP->sgw_config.ipv4.sgw_interface_name_for_S1u_S12_S4_up) > 0) {
ret += spgw_system(system_cmd, 1);
ret += spgw_system(system_cmd, SPGW_ABORT_ON_ERROR);
} else {
SPGW_APP_ERROR("Create %s\n", config_pP->sgw_config.ipv4.sgw_interface_name_for_S1u_S12_S4_up);
ret = -1;
......@@ -178,7 +178,7 @@ int spgw_config_process(spgw_config_t* config_pP) {
inet_ntoa(inaddr),
config_pP->sgw_config.ipv4.sgw_ip_netmask_for_S1u_S12_S4_up,
config_pP->sgw_config.ipv4.sgw_interface_name_for_S1u_S12_S4_up) > 0) {
ret += spgw_system(system_cmd, 1);
ret += spgw_system(system_cmd, SPGW_ABORT_ON_ERROR);
} else {
SPGW_APP_ERROR("Set IPv4 address on %s\n", config_pP->sgw_config.ipv4.sgw_interface_name_for_S1u_S12_S4_up);
ret = -1;
......@@ -187,7 +187,7 @@ int spgw_config_process(spgw_config_t* config_pP) {
if (snprintf(system_cmd, 128,
"iptables -t filter -I INPUT -i lo -d %s --protocol sctp -j DROP",
inet_ntoa(inaddr)) > 0) {
ret += spgw_system(system_cmd, 1);
ret += spgw_system(system_cmd, SPGW_ABORT_ON_ERROR);
} else {
SPGW_APP_ERROR("Drop SCTP traffic on S1U\n");
ret = -1;
......@@ -195,7 +195,7 @@ int spgw_config_process(spgw_config_t* config_pP) {
if (snprintf(system_cmd, 128,
"iptables -t filter -I INPUT -i lo -s %s --protocol sctp -j DROP",
inet_ntoa(inaddr)) > 0) {
ret += spgw_system(system_cmd, 1);
ret += spgw_system(system_cmd, SPGW_ABORT_ON_ERROR);
} else {
SPGW_APP_ERROR("Drop SCTP traffic on S1U\n");
ret = -1;
......@@ -211,7 +211,7 @@ int spgw_config_process(spgw_config_t* config_pP) {
config_pP->sgw_config.ipv4.sgw_interface_name_for_S1u_S12_S4_up,
config_pP->sgw_config.sgw_interface_mtu_for_S1u_S12_S4_up) > 0) {
SPGW_APP_INFO("Set S1U interface MTU: %s\n",system_cmd);
ret += spgw_system(system_cmd, 1);
ret += spgw_system(system_cmd, SPGW_ABORT_ON_ERROR);
} else {
SPGW_APP_ERROR("Set S1U interface MTU\n");
ret = -1;
......@@ -222,7 +222,7 @@ int spgw_config_process(spgw_config_t* config_pP) {
"iptables -t raw -I PREROUTING -i %s --protocol udp --destination-port 2152 -j DROP",
config_pP->sgw_config.ipv4.sgw_interface_name_for_S1u_S12_S4_up) > 0) {
SPGW_APP_INFO("Drop uplink traffic: %s\n",system_cmd);
ret += spgw_system(system_cmd, 1);
ret += spgw_system(system_cmd, SPGW_ABORT_ON_ERROR);
} else {
SPGW_APP_ERROR("Drop uplink traffic\n");
ret = -1;
......@@ -230,11 +230,13 @@ int spgw_config_process(spgw_config_t* config_pP) {
}
if (config_pP->pgw_config.pgw_masquerade_SGI) {
inaddr.s_addr = config_pP->pgw_config.ipv4.pgw_ipv4_address_for_SGI;
if (snprintf(system_cmd, 128,
"iptables -t nat -A POSTROUTING -o %s ! --protocol sctp -j MASQUERADE",
config_pP->pgw_config.ipv4.pgw_interface_name_for_SGI) > 0) {
"iptables -t nat -I POSTROUTING -o %s ! --protocol sctp -j SNAT --to-source %s",
config_pP->pgw_config.ipv4.pgw_interface_name_for_SGI,
inet_ntoa(inaddr)) > 0) {
SPGW_APP_INFO("Masquerade SGI: %s\n",system_cmd);
ret += spgw_system(system_cmd,1);
ret += spgw_system(system_cmd, SPGW_ABORT_ON_ERROR);
} else {
SPGW_APP_ERROR("Masquerade SGI\n");
ret = -1;
......@@ -245,8 +247,7 @@ int spgw_config_process(spgw_config_t* config_pP) {
//"iptables -I POSTROUTING -t mangle -o %s -m state --state NEW -m mark ! --mark 0 ! --protocol sctp -j CONNMARK --save-mark",
"iptables -I POSTROUTING -t mangle -o %s -m mark ! --mark 0 ! --protocol sctp -j CONNMARK --save-mark",
config_pP->pgw_config.ipv4.pgw_interface_name_for_SGI) > 0) {
SPGW_APP_INFO("Save mark: %s\n",system_cmd);
ret += spgw_system(system_cmd, 1);
ret += spgw_system(system_cmd, SPGW_ABORT_ON_ERROR);
} else {
SPGW_APP_ERROR("Save mark\n");
ret = -1;
......@@ -254,12 +255,33 @@ int spgw_config_process(spgw_config_t* config_pP) {
if (snprintf(system_cmd, 128,
"iptables -I PREROUTING -t mangle -i %s ! --protocol sctp -j CONNMARK --restore-mark",
config_pP->pgw_config.ipv4.pgw_interface_name_for_SGI) > 0) {
SPGW_APP_INFO("Restore mark: %s\n",system_cmd);
ret += spgw_system(system_cmd, 1);
ret += spgw_system(system_cmd, SPGW_ABORT_ON_ERROR);
} else {
SPGW_APP_ERROR("Restore mark\n");
ret = -1;
}
ret += spgw_system("iptables -X INGTPU", SPGW_WARN_ON_ERROR);
ret += spgw_system("iptables -N INGTPU", SPGW_ABORT_ON_ERROR);
if (strncasecmp("tun",config_pP->sgw_config.ipv4.sgw_interface_name_for_S1u_S12_S4_up, strlen("tun")) == 0) {
if (snprintf(system_cmd, 128,
"iptables -A INPUT -i lo --protocol udp --destination-port 2152 -j INGTPU") > 0) {
ret += spgw_system(system_cmd, SPGW_ABORT_ON_ERROR);
} else {
SPGW_APP_ERROR("Trace IP traffic mark\n");
ret = -1;
}
} else {
if (snprintf(system_cmd, 128,
"iptables -A INPUT -i %s --protocol udp --destination-port 2152 -j INGTPU",
config_pP->sgw_config.ipv4.sgw_interface_name_for_S1u_S12_S4_up) > 0) {
ret += spgw_system(system_cmd, SPGW_ABORT_ON_ERROR);
} else {
SPGW_APP_ERROR("Trace IP traffic mark\n");
ret = -1;
}
}
ret += spgw_system("iptables -A INGTPU -j LOG --log-prefix ' INGTPU ' --log-ip-options --log-level 4", SPGW_ABORT_ON_ERROR);
ret += spgw_system("iptables -A INGTPU -j ACCEPT", SPGW_ABORT_ON_ERROR);
#endif
return ret;
}
......@@ -310,6 +332,7 @@ int spgw_config_init(char* lib_config_file_name_pP, spgw_config_t* config_pP) {
pgw_lite_conf_ipv6_list_elm_t *ip6_ref = NULL;
#if defined (ENABLE_USE_GTPU_IN_KERNEL)
char system_cmd[256];
int tun_id = 21;
#endif
memset((char*)config_pP, 0 , sizeof(spgw_config_t));
......@@ -502,30 +525,47 @@ int spgw_config_init(char* lib_config_file_name_pP, spgw_config_t* config_pP) {
// valid address
atoken2 = strtok(NULL, PGW_CONFIG_STRING_IPV4_PREFIX_DELIMITER);
#if defined (ENABLE_USE_GTPU_IN_KERNEL)
if (snprintf(system_cmd, 128, "ip route add %s/%s dev %s",
in_addr_var.s_addr = config_pP->sgw_config.ipv4.sgw_ipv4_address_for_S1u_S12_S4_up;
if (strncasecmp("tun",config_pP->sgw_config.ipv4.sgw_interface_name_for_S1u_S12_S4_up, strlen("tun")) == 0) {
if (snprintf(system_cmd, 256,
"ip link set tun%d down ;openvpn --rmtun --dev tun%d",
tun_id,tun_id) > 0) {
spgw_system(system_cmd, SPGW_ABORT_ON_ERROR);
} else {
SPGW_APP_ERROR("Del tun%d\n", tun_id);
}
if (snprintf(system_cmd, 256,
"openvpn --mktun --dev tun%d;sync;ifconfig tun%d up;sync",
tun_id,tun_id) > 0) {
spgw_system(system_cmd, SPGW_ABORT_ON_ERROR);
} else {
SPGW_APP_ERROR("Create tun%d\n", tun_id);
}
} else {
if (snprintf(system_cmd, 128, "ip route add %s/%s via %s dev %s",
astring,
atoken2,
inet_ntoa(in_addr_var),
config_pP->sgw_config.ipv4.sgw_interface_name_for_S1u_S12_S4_up) > 0) {
SPGW_APP_INFO("Add route: %s\n",system_cmd);
spgw_system(system_cmd, 1);
spgw_system(system_cmd, SPGW_ABORT_ON_ERROR);
} else {
SPGW_APP_ERROR("Add route: for %s\n", astring);
}
}
if (config_pP->sgw_config.sgw_drop_downlink_traffic) {
if (snprintf(system_cmd, 128,
"iptables -t filter -I FORWARD -d %s/%s -j DROP",
astring, atoken2) > 0) {
SPGW_APP_INFO("Drop downlink traffic: %s\n",system_cmd);
spgw_system(system_cmd, 1);
spgw_system(system_cmd, SPGW_ABORT_ON_ERROR);
} else {
SPGW_APP_ERROR("Drop downlink traffic\n");
}
if (snprintf(system_cmd, 128,
"iptables -t filter -I OUTPUT -d %s/%s -j DROP",
astring, atoken2) > 0) {
SPGW_APP_INFO("Drop downlink traffic: %s\n",system_cmd);
spgw_system(system_cmd, 1);
spgw_system(system_cmd, SPGW_ABORT_ON_ERROR);
} else {
SPGW_APP_ERROR("Drop downlink traffic\n");
}
......@@ -533,6 +573,23 @@ int spgw_config_init(char* lib_config_file_name_pP, spgw_config_t* config_pP) {
#endif
prefix_mask = atoi(atoken2);
if ((prefix_mask >= 2)&&(prefix_mask < 32)) {
#if defined (ENABLE_USE_GTPU_IN_KERNEL)
// TEST ONLY
if (strncasecmp("tun",config_pP->sgw_config.ipv4.sgw_interface_name_for_S1u_S12_S4_up, strlen("tun")) == 0) {
memcpy (&in_addr_var, buf_in_addr, sizeof(struct in_addr));
in_addr_var.s_addr = in_addr_var.s_addr + htonl(1);
if (snprintf(system_cmd, 256,
"ip -4 addr add %s/%d dev tun%d",
inet_ntoa(in_addr_var),
prefix_mask,
tun_id) > 0) {
spgw_system(system_cmd, SPGW_ABORT_ON_ERROR);
} else {
SPGW_APP_ERROR("Set IPv4 address on tun%d\n", tun_id);
}
tun_id +=1;
}
#endif
memcpy (&addr_start, buf_in_addr, sizeof(struct in_addr));
memcpy (&addr_mask, buf_in_addr, sizeof(struct in_addr));
......@@ -565,14 +622,14 @@ int spgw_config_init(char* lib_config_file_name_pP, spgw_config_t* config_pP) {
ip4_ref->addr = addr_start;
STAILQ_INSERT_TAIL(&config_pP->pgw_config.pgw_lite_ipv4_pool_list, ip4_ref, ipv4_entries);
#if defined (ENABLE_USE_GTPU_IN_KERNEL)
if (snprintf(system_cmd, 128, "ip route add %s dev %s",
/*if (snprintf(system_cmd, 128, "ip route add %s dev %s",
buf_in_addr,
config_pP->sgw_config.ipv4.sgw_interface_name_for_S1u_S12_S4_up) > 0) {
SPGW_APP_INFO("Add route: %s\n",system_cmd);
spgw_system(system_cmd, 1);
spgw_system(system_cmd, SPGW_ABORT_ON_ERROR);
} else {
SPGW_APP_ERROR("Add route: for %s\n", buf_in_addr);
}
}*/
#endif
}
}
......
openair-cn/SGW-LITE/spgw_config.h
View file @ 2e8e8227
......@@ -146,7 +146,9 @@ typedef struct spgw_config_s {
extern spgw_config_t spgw_config;
#endif
int spgw_system(char *command_pP, int abort_on_errorP);
typedef enum { SPGW_WARN_ON_ERROR = 0, SPGW_ABORT_ON_ERROR} spgw_system_abort_control_e;
int spgw_system(char *command_pP, spgw_system_abort_control_e abort_on_errorP);
int spgw_config_process(spgw_config_t* config_pP);
int spgw_config_init(char* lib_config_file_name_pP, spgw_config_t* config_pP);
......
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