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git-svn-id: http://svn.eurecom.fr/openair4G/trunk@6061 818b1a75-f10b-46b9-bf7c-635c3b92a50f

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This commit is contained in:
Lionel Gauthier
2014-11-20 15:41:31 +00:00
parent 2f4277df0c
commit 6488a055e9
1 changed files with 174 additions and 5 deletions
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openair-cn/SGW-LITE/sgw_lite_handlers.c
+174 -5
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@@ -55,7 +55,13 @@
extern sgw_app_t sgw_app;
static uint32_t g_gtpv1u_teid = 0;
uint32_t sgw_get_new_teid(void)
{
g_gtpv1u_teid = g_gtpv1u_teid + 1;
return g_gtpv1u_teid;
}
int
sgw_lite_handle_create_session_request(
@@ -196,13 +202,24 @@ sgw_lite_handle_create_session_request(
sgw_lite_cm_remove_s11_tunnel(new_endpoint_p->remote_teid);
return -1;
}
#if defined (ENABLE_USE_GTPU_IN_KERNEL)
{
Gtpv1uCreateTunnelResp createTunnelResp;
createTunnelResp.context_teid = new_endpoint_p->local_teid;
createTunnelResp.eps_bearer_id = session_req_pP->bearer_to_create.eps_bearer_id;
createTunnelResp.status = 0x00;
createTunnelResp.S1u_teid = sgw_get_new_teid();
sgw_lite_handle_gtpv1uCreateTunnelResp(&createTunnelResp);
}
#else
message_p->ittiMsg.gtpv1uCreateTunnelReq.context_teid = new_endpoint_p->local_teid;
message_p->ittiMsg.gtpv1uCreateTunnelReq.eps_bearer_id = session_req_pP->bearer_to_create.eps_bearer_id;
SPGW_APP_DEBUG("Tx GTPV1U_CREATE_TUNNEL_REQ -> TASK_GTPV1_U, Context: S-GW S11 teid %u eps bearer id %d (from session req)\n",
message_p->ittiMsg.gtpv1uCreateTunnelReq.context_teid,
message_p->ittiMsg.gtpv1uCreateTunnelReq.eps_bearer_id);
return itti_send_msg_to_task(TASK_GTPV1_U, INSTANCE_DEFAULT, message_p);
#endif
} else {
SPGW_APP_WARN("Could not create new transaction for SESSION_CREATE message\n");
free(new_endpoint_p);
@@ -261,6 +278,23 @@ sgw_lite_handle_sgi_endpoint_created(
create_session_response_p->ambr.br_dl = 100000000;
create_session_response_p->ambr.br_ul = 40000000;
#if defined(ENABLE_USE_GTPU_IN_KERNEL)
{
sgw_eps_bearer_entry_t* eps_bearer_entry_p = NULL;
hash_rc = hashtable_get (new_bearer_ctxt_info_p->sgw_eps_bearer_context_information.pdn_connection.sgw_eps_bearers,
resp_pP->eps_bearer_id,
(void**)&eps_bearer_entry_p);
if ((hash_rc == HASH_TABLE_KEY_NOT_EXISTS) || (hash_rc == HASH_TABLE_BAD_PARAMETER_HASHTABLE)) {
SPGW_APP_ERROR("ERROR UNABLE TO GET EPS BEARER ENTRY\n");
} else {
AssertFatal(sizeof(eps_bearer_entry_p->paa) == sizeof(resp_pP->paa), "Mismatch in lengths"); // sceptic mode
memcpy(&eps_bearer_entry_p->paa,
&resp_pP->paa,
sizeof(PAA_t));
}
}
#endif
memcpy(&create_session_response_p->paa,
&resp_pP->paa,
sizeof(PAA_t));
@@ -342,6 +376,63 @@ sgw_lite_handle_gtpv1uCreateTunnelResp(
sgw_lite_display_s11_bearer_context_information_mapping();
#if defined (ENABLE_USE_GTPU_IN_KERNEL)
SGICreateEndpointResp sgi_create_endpoint_resp;
memset(&sgi_create_endpoint_resp, 0, sizeof(SGICreateEndpointResp));
// IP forward will forward packets to this teid
sgi_create_endpoint_resp.context_teid = endpoint_created_pP->context_teid;
sgi_create_endpoint_resp.sgw_S1u_teid = endpoint_created_pP->S1u_teid;
sgi_create_endpoint_resp.eps_bearer_id = endpoint_created_pP->eps_bearer_id;
// TO DO NOW
sgi_create_endpoint_resp.paa.pdn_type = new_bearer_ctxt_info_p->sgw_eps_bearer_context_information.saved_message.pdn_type;
switch (sgi_create_endpoint_resp.paa.pdn_type) {
case IPv4_OR_v6:
if (pgw_lite_get_free_ipv4_paa_address(&inaddr) == 0) {
IN_ADDR_TO_BUFFER(inaddr, sgi_create_endpoint_resp.paa.ipv4_address);
} else {
SPGW_APP_WARN("Failed to allocate IPv4 PAA for PDN type IPv4_OR_v6\n");
if (pgw_lite_get_free_ipv6_paa_prefix(&in6addr) == 0) {
IN6_ADDR_TO_BUFFER(in6addr, sgi_create_endpoint_resp.paa.ipv6_address);
} else {
SPGW_APP_ERROR("Failed to allocate IPv6 PAA for PDN type IPv4_OR_v6\n");
}
}
break;
case IPv4:
if (pgw_lite_get_free_ipv4_paa_address(&inaddr) == 0) {
IN_ADDR_TO_BUFFER(inaddr, sgi_create_endpoint_resp.paa.ipv4_address);
} else {
SPGW_APP_ERROR("Failed to allocate IPv4 PAA for PDN type IPv4\n");
}
break;
case IPv6:
if (pgw_lite_get_free_ipv6_paa_prefix(&in6addr) == 0) {
IN6_ADDR_TO_BUFFER(in6addr, sgi_create_endpoint_resp.paa.ipv6_address);
} else {
SPGW_APP_ERROR("Failed to allocate IPv6 PAA for PDN type IPv6\n");
}
break;
case IPv4_AND_v6:
if (pgw_lite_get_free_ipv4_paa_address(&inaddr) == 0) {
IN_ADDR_TO_BUFFER(inaddr, sgi_create_endpoint_resp.paa.ipv4_address);
} else {
SPGW_APP_ERROR("Failed to allocate IPv4 PAA for PDN type IPv4_AND_v6\n");
}
if (pgw_lite_get_free_ipv6_paa_prefix(&in6addr) == 0) {
IN6_ADDR_TO_BUFFER(in6addr, sgi_create_endpoint_resp.paa.ipv6_address);
} else {
SPGW_APP_ERROR("Failed to allocate IPv6 PAA for PDN type IPv4_AND_v6\n");
}
break;
default:
AssertFatal(0,"BAD paa.pdn_type %d", sgi_create_endpoint_resp.paa.pdn_type);
break;
}
sgi_create_endpoint_resp.status = SGI_STATUS_OK;
sgw_lite_handle_sgi_endpoint_created(&sgi_create_endpoint_resp);
#else
/* SEND IP_FW_CREATE_IP_ENDPOINT_REQUEST to FW_IP task */
message_p = itti_alloc_new_message(TASK_SPGW_APP, SGI_CREATE_ENDPOINT_REQUEST);
if (message_p == NULL) {
@@ -403,6 +494,7 @@ sgw_lite_handle_gtpv1uCreateTunnelResp(
// TO DO TFT, QOS
return itti_send_msg_to_task(TASK_FW_IP, INSTANCE_DEFAULT, message_p);
#endif
} else {
SPGW_APP_DEBUG("Rx SGW_S1U_ENDPOINT_CREATED, Context: teid %u NOT FOUND\n", endpoint_created_pP->context_teid);
message_p = itti_alloc_new_message(TASK_SPGW_APP, SGW_CREATE_SESSION_RESPONSE);
@@ -476,9 +568,9 @@ sgw_lite_handle_gtpv1uUpdateTunnelResp(
}
update_request_p = &message_p->ittiMsg.sgiUpdateEndpointReq;
memset(update_request_p, 0, sizeof(SGIUpdateEndpointReq));
update_request_p->context_teid = endpoint_updated_pP->context_teid;
update_request_p->sgw_S1u_teid = endpoint_updated_pP->sgw_S1u_teid;
update_request_p->enb_S1u_teid = endpoint_updated_pP->enb_S1u_teid;
update_request_p->context_teid = endpoint_updated_pP->context_teid;
update_request_p->sgw_S1u_teid = endpoint_updated_pP->sgw_S1u_teid;
update_request_p->enb_S1u_teid = endpoint_updated_pP->enb_S1u_teid;
update_request_p->eps_bearer_id = endpoint_updated_pP->eps_bearer_id;
return itti_send_msg_to_task(TASK_FW_IP, INSTANCE_DEFAULT, message_p);
@@ -517,6 +609,9 @@ sgw_lite_handle_sgi_endpoint_updated(
sgw_eps_bearer_entry_t *eps_bearer_entry_p = NULL;
hashtable_rc_t hash_rc;
task_id_t to_task;
#if defined (ENABLE_USE_GTPU_IN_KERNEL)
static uint8_t iptable_uplink_remove_gtpu = FALSE;
#endif
#if defined(ENABLE_STANDALONE_EPC)
to_task = TASK_MME_APP;
@@ -538,7 +633,9 @@ sgw_lite_handle_sgi_endpoint_updated(
modify_response_p = &message_p->ittiMsg.sgwModifyBearerResponse;
memset(modify_response_p, 0, sizeof(SgwModifyBearerResponse));
hash_rc = hashtable_get(sgw_app.s11_bearer_context_information_hashtable, resp_pP->context_teid, (void**)&new_bearer_ctxt_info_p);
hash_rc = hashtable_get(sgw_app.s11_bearer_context_information_hashtable,
resp_pP->context_teid,
(void**)&new_bearer_ctxt_info_p);
if (hash_rc == HASH_TABLE_OK) {
@@ -566,6 +663,66 @@ sgw_lite_handle_sgi_endpoint_updated(
modify_response_p->bearer_choice.bearer_contexts_modified.cause = REQUEST_ACCEPTED;
modify_response_p->cause = REQUEST_ACCEPTED;
modify_response_p->trxn = new_bearer_ctxt_info_p->sgw_eps_bearer_context_information.trxn;
#if defined (ENABLE_USE_GTPU_IN_KERNEL)
char cmd[256];
int ret;
ret = snprintf(cmd,
256, // TO DO add --mark tun_id
"iptables -t mangle -A POSTROUTING -d %u.%u.%u.%u -j GTPUAH --own-ip %u.%u.%u.%u --own-tun %u --peer-ip %u.%u.%u.%u --peer-tun %u --action add",
eps_bearer_entry_p->paa.ipv4_address[0],
eps_bearer_entry_p->paa.ipv4_address[1],
eps_bearer_entry_p->paa.ipv4_address[2],
eps_bearer_entry_p->paa.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,
eps_bearer_entry_p->s_gw_teid_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],
eps_bearer_entry_p->enb_ip_address_for_S1u.address.ipv4_address[3],
eps_bearer_entry_p->enb_teid_for_S1u
);
if ((ret < 0) || (ret > 256)) {
SPGW_APP_ERROR("ERROR in preparing downlink tunnel, tune string length\n");
exit (-1);
}
SPGW_APP_DEBUG("%s\n", cmd);
//use API when prototype validated
ret = system(cmd);
if (ret < 0) {
SPGW_APP_ERROR("ERROR in setting up downlink TUNNEL\n");
}
if (iptable_uplink_remove_gtpu == FALSE) {
ret = snprintf(cmd,
256,
"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",
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],
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);
}
//use API when prototype validated
SPGW_APP_DEBUG("%s\n", cmd);
ret = system(cmd);
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);
} else {
@@ -648,6 +805,17 @@ sgw_lite_handle_modify_bearer_request(
FTEID_T_2_IP_ADDRESS_T( (&modify_bearer_pP->bearer_context_to_modify.s1_eNB_fteid) , (&eps_bearer_entry_p->enb_ip_address_for_S1u) );
eps_bearer_entry_p->enb_teid_for_S1u = modify_bearer_pP->bearer_context_to_modify.s1_eNB_fteid.teid;
#if defined (ENABLE_USE_GTPU_IN_KERNEL)
{
SGIUpdateEndpointResp sgi_update_end_point_resp;
sgi_update_end_point_resp.context_teid = modify_bearer_pP->teid;
sgi_update_end_point_resp.sgw_S1u_teid = eps_bearer_entry_p->s_gw_teid_for_S1u_S12_S4_up;
sgi_update_end_point_resp.enb_S1u_teid = eps_bearer_entry_p->enb_teid_for_S1u;
sgi_update_end_point_resp.eps_bearer_id = eps_bearer_entry_p->eps_bearer_id;
sgi_update_end_point_resp.status = 0x00;
sgw_lite_handle_sgi_endpoint_updated(&sgi_update_end_point_resp);
}
#else
// UPDATE GTPV1U mapping tables with eNB references (teid, addresses)
message_p = itti_alloc_new_message(TASK_SPGW_APP, GTPV1U_UPDATE_TUNNEL_REQ);
if (message_p == NULL) {
@@ -667,7 +835,8 @@ sgw_lite_handle_modify_bearer_request(
SPGW_APP_DEBUG("Rx MODIFY_BEARER_REQUEST, gtpv1u_update_tunnel_req_p->eps_bearer_id = %u\n",gtpv1u_update_tunnel_req_p->eps_bearer_id);
return itti_send_msg_to_task(TASK_GTPV1_U, INSTANCE_DEFAULT, message_p);
}
#endif
}
} else {
message_p = itti_alloc_new_message(TASK_SPGW_APP, SGW_MODIFY_BEARER_RESPONSE);
if (message_p == NULL) {