412 lines
11 KiB
C
412 lines
11 KiB
C
#define TRACE_MODULE _mme_gtp_path
|
|
#include "core_debug.h"
|
|
#include "core_pkbuf.h"
|
|
|
|
#include "gtp/gtp_node.h"
|
|
#include "gtp/gtp_path.h"
|
|
#include "gtp/gtp_xact.h"
|
|
|
|
#include "mme_event.h"
|
|
#include "mme_gtp_path.h"
|
|
#include "mme_s11_build.h"
|
|
#include "mme_sm.h"
|
|
|
|
static int _gtpv2_c_recv_cb(sock_id sock, void *data)
|
|
{
|
|
status_t rv;
|
|
event_t e;
|
|
pkbuf_t *pkbuf = NULL;
|
|
|
|
d_assert(sock, return -1, "Null param");
|
|
|
|
rv = gtp_recv(sock, &pkbuf);
|
|
if (rv != CORE_OK)
|
|
{
|
|
if (errno == EAGAIN)
|
|
return 0;
|
|
|
|
return -1;
|
|
}
|
|
|
|
d_trace(50, "[GTPv2] RECV : ");
|
|
d_trace_hex(50, pkbuf->payload, pkbuf->len);
|
|
|
|
event_set(&e, MME_EVT_S11_MESSAGE);
|
|
event_set_param1(&e, (c_uintptr_t)pkbuf);
|
|
rv = mme_event_send(&e);
|
|
if (rv != CORE_OK)
|
|
{
|
|
d_error("mme_event_send error");
|
|
pkbuf_free(pkbuf);
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static c_sockaddr_t *pgw_addr_find_by_family(list_t *list, int family)
|
|
{
|
|
mme_pgw_t *pgw = NULL;
|
|
d_assert(list, return NULL,);
|
|
|
|
for (pgw = list_first(list); pgw; pgw = list_next(pgw))
|
|
{
|
|
d_assert(pgw->gnode, return NULL,);
|
|
c_sockaddr_t *addr = pgw->gnode->sa_list;
|
|
while(addr)
|
|
{
|
|
if (addr->c_sa_family == family)
|
|
{
|
|
return addr;
|
|
}
|
|
addr = addr->next;
|
|
}
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
status_t mme_gtp_open()
|
|
{
|
|
status_t rv;
|
|
mme_sgw_t *sgw = NULL;
|
|
|
|
rv = gtp_server_list(&mme_self()->gtpc_list, _gtpv2_c_recv_cb);
|
|
d_assert(rv == CORE_OK, return CORE_ERROR,);
|
|
rv = gtp_server_list(&mme_self()->gtpc_list6, _gtpv2_c_recv_cb);
|
|
d_assert(rv == CORE_OK, return CORE_ERROR,);
|
|
|
|
mme_self()->gtpc_sock = gtp_local_sock_first(&mme_self()->gtpc_list);
|
|
mme_self()->gtpc_sock6 = gtp_local_sock_first(&mme_self()->gtpc_list6);
|
|
mme_self()->gtpc_addr = gtp_local_addr_first(&mme_self()->gtpc_list);
|
|
mme_self()->gtpc_addr6 = gtp_local_addr_first(&mme_self()->gtpc_list6);
|
|
|
|
d_assert(mme_self()->gtpc_addr || mme_self()->gtpc_addr6,
|
|
return CORE_ERROR, "No GTP Server");
|
|
|
|
mme_self()->pgw_addr = pgw_addr_find_by_family(
|
|
&mme_self()->pgw_list, AF_INET);
|
|
mme_self()->pgw_addr6 = pgw_addr_find_by_family(
|
|
&mme_self()->pgw_list, AF_INET6);
|
|
d_assert(mme_self()->pgw_addr || mme_self()->pgw_addr6,
|
|
return CORE_ERROR,);
|
|
|
|
for (sgw = list_first(&mme_self()->sgw_list); sgw; sgw = list_next(sgw))
|
|
{
|
|
rv = gtp_client(sgw->gnode);
|
|
d_assert(rv == CORE_OK, return CORE_ERROR,);
|
|
}
|
|
|
|
return CORE_OK;
|
|
}
|
|
|
|
status_t mme_gtp_close()
|
|
{
|
|
sock_delete_list(&mme_self()->gtpc_list);
|
|
sock_delete_list(&mme_self()->gtpc_list6);
|
|
|
|
return CORE_OK;
|
|
}
|
|
|
|
status_t mme_gtp_send_create_session_request(mme_sess_t *sess)
|
|
{
|
|
status_t rv;
|
|
gtp_header_t h;
|
|
pkbuf_t *pkbuf = NULL;
|
|
gtp_xact_t *xact = NULL;
|
|
mme_ue_t *mme_ue = NULL;
|
|
|
|
mme_ue = sess->mme_ue;
|
|
d_assert(mme_ue, return CORE_ERROR, "Null param");
|
|
|
|
memset(&h, 0, sizeof(gtp_header_t));
|
|
h.type = GTP_CREATE_SESSION_REQUEST_TYPE;
|
|
h.teid = mme_ue->sgw_s11_teid;
|
|
|
|
rv = mme_s11_build_create_session_request(&pkbuf, h.type, sess);
|
|
d_assert(rv == CORE_OK, return CORE_ERROR,
|
|
"S11 build error");
|
|
|
|
xact = gtp_xact_local_create(mme_ue->gnode, &h, pkbuf);
|
|
d_assert(xact, return CORE_ERROR, "Null param");
|
|
|
|
rv = gtp_xact_commit(xact);
|
|
d_assert(rv == CORE_OK, return CORE_ERROR, "xact_commit error");
|
|
|
|
return CORE_OK;
|
|
}
|
|
|
|
|
|
status_t mme_gtp_send_modify_bearer_request(
|
|
mme_bearer_t *bearer, int uli_presence)
|
|
{
|
|
status_t rv;
|
|
|
|
gtp_xact_t *xact = NULL;
|
|
mme_ue_t *mme_ue = NULL;
|
|
|
|
gtp_header_t h;
|
|
pkbuf_t *pkbuf = NULL;
|
|
|
|
d_assert(bearer, return CORE_ERROR, "Null param");
|
|
mme_ue = bearer->mme_ue;
|
|
d_assert(mme_ue, return CORE_ERROR, "Null param");
|
|
|
|
memset(&h, 0, sizeof(gtp_header_t));
|
|
h.type = GTP_MODIFY_BEARER_REQUEST_TYPE;
|
|
h.teid = mme_ue->sgw_s11_teid;
|
|
|
|
rv = mme_s11_build_modify_bearer_request(
|
|
&pkbuf, h.type, bearer, uli_presence);
|
|
d_assert(rv == CORE_OK, return CORE_ERROR, "S11 build error");
|
|
|
|
xact = gtp_xact_local_create(mme_ue->gnode, &h, pkbuf);
|
|
d_assert(xact, return CORE_ERROR, "Null param");
|
|
|
|
rv = gtp_xact_commit(xact);
|
|
d_assert(rv == CORE_OK, return CORE_ERROR, "xact_commit error");
|
|
|
|
return CORE_OK;
|
|
}
|
|
|
|
status_t mme_gtp_send_delete_session_request(mme_sess_t *sess)
|
|
{
|
|
status_t rv;
|
|
pkbuf_t *s11buf = NULL;
|
|
gtp_header_t h;
|
|
gtp_xact_t *xact = NULL;
|
|
mme_ue_t *mme_ue = NULL;
|
|
|
|
d_assert(sess, return CORE_ERROR, "Null param");
|
|
mme_ue = sess->mme_ue;
|
|
d_assert(mme_ue, return CORE_ERROR, "Null param");
|
|
|
|
memset(&h, 0, sizeof(gtp_header_t));
|
|
h.type = GTP_DELETE_SESSION_REQUEST_TYPE;
|
|
h.teid = mme_ue->sgw_s11_teid;
|
|
|
|
rv = mme_s11_build_delete_session_request(&s11buf, h.type, sess);
|
|
d_assert(rv == CORE_OK, return CORE_ERROR, "S11 build error");
|
|
|
|
xact = gtp_xact_local_create(mme_ue->gnode, &h, s11buf);
|
|
d_assert(xact, return CORE_ERROR, "Null param");
|
|
|
|
GTP_XACT_STORE_SESSION(xact, sess);
|
|
|
|
rv = gtp_xact_commit(xact);
|
|
d_assert(rv == CORE_OK, return CORE_ERROR, "xact_commit error");
|
|
|
|
return CORE_OK;
|
|
}
|
|
|
|
status_t mme_gtp_send_delete_all_sessions(mme_ue_t *mme_ue)
|
|
{
|
|
status_t rv;
|
|
mme_sess_t *sess = NULL, *next_sess = NULL;
|
|
|
|
d_assert(mme_ue, return CORE_ERROR, "Null param");
|
|
sess = mme_sess_first(mme_ue);
|
|
while (sess != NULL)
|
|
{
|
|
next_sess = mme_sess_next(sess);
|
|
|
|
if (MME_HAVE_SGW_S1U_PATH(sess))
|
|
{
|
|
mme_bearer_t *bearer = mme_default_bearer_in_sess(sess);
|
|
d_assert(bearer,, "Null param");
|
|
|
|
if (bearer && FSM_CHECK(&bearer->sm, esm_state_pdn_will_disconnect))
|
|
{
|
|
d_warn("PDN will disconnect[EBI:%d]", bearer->ebi);
|
|
}
|
|
else
|
|
{
|
|
rv = mme_gtp_send_delete_session_request(sess);
|
|
d_assert(rv == CORE_OK, return CORE_ERROR,
|
|
"mme_gtp_send_delete_session_request error");
|
|
}
|
|
}
|
|
else
|
|
{
|
|
mme_sess_remove(sess);
|
|
}
|
|
|
|
sess = next_sess;
|
|
}
|
|
|
|
return CORE_OK;
|
|
}
|
|
|
|
status_t mme_gtp_send_create_bearer_response(mme_bearer_t *bearer)
|
|
{
|
|
status_t rv;
|
|
|
|
gtp_xact_t *xact = NULL;
|
|
mme_ue_t *mme_ue = NULL;
|
|
|
|
gtp_header_t h;
|
|
pkbuf_t *pkbuf = NULL;
|
|
|
|
d_assert(bearer, return CORE_ERROR, "Null param");
|
|
mme_ue = bearer->mme_ue;
|
|
d_assert(mme_ue, return CORE_ERROR, "Null param");
|
|
xact = bearer->xact;
|
|
d_assert(xact, return CORE_ERROR, "Null param");
|
|
|
|
memset(&h, 0, sizeof(gtp_header_t));
|
|
h.type = GTP_CREATE_BEARER_RESPONSE_TYPE;
|
|
h.teid = mme_ue->sgw_s11_teid;
|
|
|
|
rv = mme_s11_build_create_bearer_response(&pkbuf, h.type, bearer);
|
|
d_assert(rv == CORE_OK, return CORE_ERROR, "S11 build error");
|
|
|
|
rv = gtp_xact_update_tx(xact, &h, pkbuf);
|
|
d_assert(xact, return CORE_ERROR, "Null param");
|
|
|
|
rv = gtp_xact_commit(xact);
|
|
d_assert(rv == CORE_OK, return CORE_ERROR, "xact_commit error");
|
|
|
|
return CORE_OK;
|
|
}
|
|
|
|
status_t mme_gtp_send_update_bearer_response(mme_bearer_t *bearer)
|
|
{
|
|
status_t rv;
|
|
|
|
gtp_xact_t *xact = NULL;
|
|
mme_ue_t *mme_ue = NULL;
|
|
|
|
gtp_header_t h;
|
|
pkbuf_t *pkbuf = NULL;
|
|
|
|
d_assert(bearer, return CORE_ERROR, "Null param");
|
|
mme_ue = bearer->mme_ue;
|
|
d_assert(mme_ue, return CORE_ERROR, "Null param");
|
|
xact = bearer->xact;
|
|
d_assert(xact, return CORE_ERROR, "Null param");
|
|
|
|
memset(&h, 0, sizeof(gtp_header_t));
|
|
h.type = GTP_UPDATE_BEARER_RESPONSE_TYPE;
|
|
h.teid = mme_ue->sgw_s11_teid;
|
|
|
|
rv = mme_s11_build_update_bearer_response(&pkbuf, h.type, bearer);
|
|
d_assert(rv == CORE_OK, return CORE_ERROR, "S11 build error");
|
|
|
|
rv = gtp_xact_update_tx(xact, &h, pkbuf);
|
|
d_assert(xact, return CORE_ERROR, "Null param");
|
|
|
|
rv = gtp_xact_commit(xact);
|
|
d_assert(rv == CORE_OK, return CORE_ERROR, "xact_commit error");
|
|
|
|
return CORE_OK;
|
|
}
|
|
|
|
status_t mme_gtp_send_delete_bearer_response(mme_bearer_t *bearer)
|
|
{
|
|
status_t rv;
|
|
|
|
gtp_xact_t *xact = NULL;
|
|
mme_ue_t *mme_ue = NULL;
|
|
|
|
gtp_header_t h;
|
|
pkbuf_t *pkbuf = NULL;
|
|
|
|
d_assert(bearer, return CORE_ERROR, "Null param");
|
|
mme_ue = bearer->mme_ue;
|
|
d_assert(mme_ue, return CORE_ERROR, "Null param");
|
|
xact = bearer->xact;
|
|
d_assert(xact, return CORE_ERROR, "Null param");
|
|
|
|
memset(&h, 0, sizeof(gtp_header_t));
|
|
h.type = GTP_DELETE_BEARER_RESPONSE_TYPE;
|
|
h.teid = mme_ue->sgw_s11_teid;
|
|
|
|
rv = mme_s11_build_delete_bearer_response(&pkbuf, h.type, bearer);
|
|
d_assert(rv == CORE_OK, return CORE_ERROR, "S11 build error");
|
|
|
|
rv = gtp_xact_update_tx(xact, &h, pkbuf);
|
|
d_assert(xact, return CORE_ERROR, "Null param");
|
|
|
|
rv = gtp_xact_commit(xact);
|
|
d_assert(rv == CORE_OK, return CORE_ERROR, "xact_commit error");
|
|
|
|
return CORE_OK;
|
|
}
|
|
|
|
status_t mme_gtp_send_release_access_bearers_request(mme_ue_t *mme_ue)
|
|
{
|
|
status_t rv;
|
|
gtp_header_t h;
|
|
pkbuf_t *pkbuf = NULL;
|
|
gtp_xact_t *xact = NULL;
|
|
|
|
d_assert(mme_ue, return CORE_ERROR, "Null param");
|
|
|
|
memset(&h, 0, sizeof(gtp_header_t));
|
|
h.type = GTP_RELEASE_ACCESS_BEARERS_REQUEST_TYPE;
|
|
h.teid = mme_ue->sgw_s11_teid;
|
|
|
|
rv = mme_s11_build_release_access_bearers_request(&pkbuf, h.type);
|
|
d_assert(rv == CORE_OK, return CORE_ERROR, "S11 build error");
|
|
|
|
xact = gtp_xact_local_create(mme_ue->gnode, &h, pkbuf);
|
|
d_assert(xact, return CORE_ERROR, "Null param");
|
|
|
|
rv = gtp_xact_commit(xact);
|
|
d_assert(rv == CORE_OK, return CORE_ERROR, "xact_commit error");
|
|
|
|
return CORE_OK;
|
|
}
|
|
|
|
status_t mme_gtp_send_create_indirect_data_forwarding_tunnel_request(
|
|
mme_ue_t *mme_ue)
|
|
{
|
|
status_t rv;
|
|
gtp_header_t h;
|
|
pkbuf_t *pkbuf = NULL;
|
|
gtp_xact_t *xact = NULL;
|
|
|
|
d_assert(mme_ue, return CORE_ERROR, "Null param");
|
|
|
|
memset(&h, 0, sizeof(gtp_header_t));
|
|
h.type = GTP_CREATE_INDIRECT_DATA_FORWARDING_TUNNEL_REQUEST_TYPE;
|
|
h.teid = mme_ue->sgw_s11_teid;
|
|
|
|
rv = mme_s11_build_create_indirect_data_forwarding_tunnel_request(
|
|
&pkbuf, h.type, mme_ue);
|
|
d_assert(rv == CORE_OK, return CORE_ERROR, "S11 build error");
|
|
|
|
xact = gtp_xact_local_create(mme_ue->gnode, &h, pkbuf);
|
|
d_assert(xact, return CORE_ERROR, "Null param");
|
|
|
|
rv = gtp_xact_commit(xact);
|
|
d_assert(rv == CORE_OK, return CORE_ERROR, "xact_commit error");
|
|
|
|
return CORE_OK;
|
|
}
|
|
|
|
status_t mme_gtp_send_delete_indirect_data_forwarding_tunnel_request(
|
|
mme_ue_t *mme_ue)
|
|
{
|
|
status_t rv;
|
|
gtp_header_t h;
|
|
pkbuf_t *pkbuf = NULL;
|
|
gtp_xact_t *xact = NULL;
|
|
|
|
d_assert(mme_ue, return CORE_ERROR, "Null param");
|
|
|
|
memset(&h, 0, sizeof(gtp_header_t));
|
|
h.type = GTP_DELETE_INDIRECT_DATA_FORWARDING_TUNNEL_REQUEST_TYPE;
|
|
h.teid = mme_ue->sgw_s11_teid;
|
|
|
|
pkbuf = pkbuf_alloc(TLV_MAX_HEADROOM, 0);
|
|
d_assert(pkbuf, return CORE_ERROR, "S11 build error");
|
|
|
|
xact = gtp_xact_local_create(mme_ue->gnode, &h, pkbuf);
|
|
d_assert(xact, return CORE_ERROR, "Null param");
|
|
|
|
rv = gtp_xact_commit(xact);
|
|
d_assert(rv == CORE_OK, return CORE_ERROR, "xact_commit error");
|
|
|
|
return CORE_OK;
|
|
}
|