forked from acouzens/open5gs
100 lines
2.3 KiB
C
100 lines
2.3 KiB
C
#define TRACE_MODULE _mme_s11_path
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#include "core_debug.h"
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#include "core_pkbuf.h"
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#include "core_net.h"
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#include "mme_event.h"
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#include "mme_context.h"
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#include "mme_s11_path.h"
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static int _gtpv2_c_recv_cb(net_sock_t *sock, void *data)
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{
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char buf[INET_ADDRSTRLEN];
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status_t rv;
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event_t e;
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pkbuf_t *pkbuf = NULL;
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gtp_node_t gnode;
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mme_sgw_t *sgw = NULL;
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d_assert(sock, return -1, "Null param");
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pkbuf = gtp_read(sock);
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if (pkbuf == NULL)
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{
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if (sock->sndrcv_errno == EAGAIN)
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return 0;
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return -1;
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}
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gnode.addr = sock->remote.sin_addr.s_addr;
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gnode.port = ntohs(sock->remote.sin_port);
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sgw = mme_sgw_find_by_node(&gnode);
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d_assert(sgw, return -1, "Can't find SGW from [%s:%d]",
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INET_NTOP(&gnode.addr, buf), gnode.port);
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d_trace(1, "S11_PDU is received from SGW[%s:%d]\n",
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INET_NTOP(&gnode.addr, buf), gnode.port);
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d_trace_hex(1, pkbuf->payload, pkbuf->len);
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event_set(&e, EVT_MSG_MME_S11);
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event_set_param1(&e, (c_uintptr_t)sock);
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event_set_param2(&e, (c_uintptr_t)sgw);
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event_set_param3(&e, (c_uintptr_t)pkbuf);
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rv = mme_event_send(&e);
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if (rv != CORE_OK)
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{
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d_error("mme_event_send error");
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pkbuf_free(pkbuf);
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return -1;
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}
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return 0;
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}
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status_t mme_s11_listen()
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{
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status_t rv;
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rv = gtp_listen(&mme_self()->s11_sock, _gtpv2_c_recv_cb,
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mme_self()->s11_addr, mme_self()->s11_port, NULL);
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if (rv != CORE_OK)
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{
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d_error("Can't establish S11 Path for SGW");
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return rv;
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}
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return CORE_OK;
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}
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status_t mme_s11_close()
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{
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status_t rv;
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rv = gtp_close(mme_self()->s11_sock);
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if (rv != CORE_OK)
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{
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d_error("Can't close S11 Path for SGW");
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return rv;
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}
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return CORE_OK;
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}
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status_t mme_s11_send_to_sgw(void *sgw,
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c_uint8_t type, c_uint32_t teid, pkbuf_t *pkbuf)
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{
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gtp_xact_t *xact = NULL;
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d_assert(sgw, return CORE_ERROR, "Null param");
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d_assert(pkbuf, return CORE_ERROR, "Null param");
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xact = gtp_xact_local_create(&mme_self()->gtp_xact_ctx,
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mme_self()->s11_sock, sgw);
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d_assert(xact, return CORE_ERROR, "Null param");
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d_assert(gtp_xact_commit(xact, type, teid, pkbuf) == CORE_OK,
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return CORE_ERROR, "xact commit error");
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return CORE_OK;
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}
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