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-rw-r--r--osmo-gsup-hlr/src/gsup_server.c290
1 files changed, 0 insertions, 290 deletions
diff --git a/osmo-gsup-hlr/src/gsup_server.c b/osmo-gsup-hlr/src/gsup_server.c
deleted file mode 100644
index d8874eb..0000000
--- a/osmo-gsup-hlr/src/gsup_server.c
+++ /dev/null
@@ -1,290 +0,0 @@
-/* (C) 2016 by Harald Welte <laforge@gnumonks.org>
- *
- * All Rights Reserved
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as published by
- * the Free Software Foundation; either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program 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 Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
-
-#include <errno.h>
-
-#include <osmocom/core/msgb.h>
-#include <osmocom/core/logging.h>
-#include <osmocom/core/linuxlist.h>
-#include <osmocom/abis/ipa.h>
-#include <osmocom/abis/ipaccess.h>
-
-#include "logging.h"
-#include "gsup_server.h"
-
-static void osmo_gsup_server_send(struct osmo_gsup_conn *conn,
- int proto_ext, struct msgb *msg_tx)
-{
- ipa_prepend_header_ext(msg_tx, proto_ext);
- ipa_msg_push_header(msg_tx, IPAC_PROTO_OSMO);
- ipa_server_conn_send(conn->conn, msg_tx);
-}
-
-int osmo_gsup_conn_send(struct osmo_gsup_conn *conn, struct msgb *msg)
-{
- if (!conn) {
- msgb_free(msg);
- return -ENOTCONN;
- }
-
- osmo_gsup_server_send(conn, IPAC_PROTO_EXT_GSUP, msg);
-
- return 0;
-}
-
-static int osmo_gsup_conn_oap_handle(struct osmo_gsup_conn *conn,
- struct msgb *msg_rx)
-{
- int rc;
- struct msgb *msg_tx;
-#if 0
- rc = oap_handle(&conn->oap_state, msg_rx, &msg_tx);
- msgb_free(msg_rx);
- if (rc < 0)
- return rc;
-
- if (msg_tx)
- osmo_gsup_conn_send(conn, IPAC_PROTO_EXT_OAP, msg_tx);
-#endif
- return 0;
-}
-
-/* Data from a given client has arrived over the socket */
-static int osmo_gsup_server_read_cb(struct ipa_server_conn *conn,
- struct msgb *msg)
-{
- struct ipaccess_head *hh = (struct ipaccess_head *) msg->data;
- struct ipaccess_head_ext *he = (struct ipaccess_head_ext *) msgb_l2(msg);
- struct osmo_gsup_conn *clnt = (struct osmo_gsup_conn *)conn->data;
- int rc;
-
- msg->l2h = &hh->data[0];
-
- if (hh->proto == IPAC_PROTO_IPACCESS) {
- rc = ipa_server_conn_ccm(conn, msg);
- if (rc < 0) {
- /* conn is already invalid here! */
- return -1;
- }
- msgb_free(msg);
- return 0;
- }
-
- if (hh->proto != IPAC_PROTO_OSMO) {
- LOGP(DGSUP, LOGL_NOTICE, "Unsupported IPA stream ID 0x%02x\n",
- hh->proto);
- goto invalid;
- }
-
- if (!he || msgb_l2len(msg) < sizeof(*he)) {
- LOGP(DGSUP, LOGL_NOTICE, "short IPA message\n");
- goto invalid;
- }
-
- msg->l2h = &he->data[0];
-
- if (he->proto == IPAC_PROTO_EXT_GSUP) {
- OSMO_ASSERT(clnt->server->read_cb != NULL);
- clnt->server->read_cb(clnt, msg);
- /* expecting read_cb() to free msg */
- } else if (he->proto == IPAC_PROTO_EXT_OAP) {
- return osmo_gsup_conn_oap_handle(clnt, msg);
- /* osmo_gsup_client_oap_handle frees msg */
- } else {
- LOGP(DGSUP, LOGL_NOTICE, "Unsupported IPA Osmo Proto 0x%02x\n",
- hh->proto);
- goto invalid;
- }
-
- return 0;
-
-invalid:
- LOGP(DGSUP, LOGL_NOTICE,
- "GSUP received an invalid IPA message from %s:%d: %s\n",
- conn->addr, conn->port, osmo_hexdump(msgb_l2(msg), msgb_l2len(msg)));
- msgb_free(msg);
- return -1;
-
-}
-
-static void osmo_tlvp_dump(const struct tlv_parsed *tlvp,
- int subsys, int level)
-{
- unsigned int i;
-
- for (i = 0; i < ARRAY_SIZE(tlvp->lv); i++) {
- if (!TLVP_PRESENT(tlvp, i))
- continue;
-
- LOGP(subsys, level, "%u: %s\n", i,
- TLVP_VAL(tlvp, i));
- LOGP(subsys, level, "%u: %s\n", i,
- osmo_hexdump(TLVP_VAL(tlvp, i),
- TLVP_LEN(tlvp, i)));
- }
-}
-
-/* FIXME: should this be parrt of ipas_server handling, not GSUP? */
-static void tlvp_copy(void *ctx, struct tlv_parsed *out, const struct tlv_parsed *in)
-{
- unsigned int i;
-
- for (i = 0; i < ARRAY_SIZE(out->lv); i++) {
- if (!TLVP_PRESENT(in, i)) {
- if (TLVP_PRESENT(out, i)) {
- talloc_free((void *) out->lv[i].val);
- out->lv[i].val = NULL;
- out->lv[i].len = 0;
- }
- continue;
- }
- out->lv[i].val = talloc_memdup(ctx, in->lv[i].val, in->lv[i].len);
- out->lv[i].len = in->lv[i].len;
- }
-}
-
-int osmo_gsup_conn_ccm_get(const struct osmo_gsup_conn *clnt, uint8_t **addr,
- uint8_t tag)
-{
- if (!TLVP_PRESENT(&clnt->ccm, tag))
- return -ENODEV;
- *addr = (uint8_t *) TLVP_VAL(&clnt->ccm, tag);
-
- return TLVP_LEN(&clnt->ccm, tag);
-}
-
-static int osmo_gsup_server_ccm_cb(struct ipa_server_conn *conn,
- struct msgb *msg, struct tlv_parsed *tlvp,
- struct ipaccess_unit *unit)
-{
- struct osmo_gsup_conn *clnt = (struct osmo_gsup_conn *)conn->data;
- uint8_t *addr;
- size_t addr_len;
-
- LOGP(DGSUP, LOGL_INFO, "CCM Callback\n");
-
- /* FIXME: should this be parrt of ipas_server handling, not
- * GSUP? */
- tlvp_copy(clnt, &clnt->ccm, tlvp);
- osmo_tlvp_dump(tlvp, DGSUP, LOGL_INFO);
-
- addr_len = osmo_gsup_conn_ccm_get(clnt, &addr, IPAC_IDTAG_SERNR);
- if (addr_len)
- gsup_route_add(clnt, addr, addr_len);
-
- return 0;
-}
-
-static int osmo_gsup_server_closed_cb(struct ipa_server_conn *conn)
-{
- struct osmo_gsup_conn *clnt = (struct osmo_gsup_conn *)conn->data;
-
- LOGP(DGSUP, LOGL_INFO, "Lost GSUP client %s:%d\n",
- conn->addr, conn->port);
-
- gsup_route_del_conn(clnt);
- llist_del(&clnt->list);
- talloc_free(clnt);
-
- return 0;
-}
-
-/* a client has connected to the server socket and we have accept()ed it */
-static int osmo_gsup_server_accept_cb(struct ipa_server_link *link, int fd)
-{
- struct osmo_gsup_conn *conn;
- struct osmo_gsup_server *gsups =
- (struct osmo_gsup_server *) link->data;
- int rc;
-
- conn = talloc_zero(gsups, struct osmo_gsup_conn);
- OSMO_ASSERT(conn);
-
- conn->conn = ipa_server_conn_create(gsups, link, fd,
- osmo_gsup_server_read_cb,
- osmo_gsup_server_closed_cb, conn);
- conn->conn->ccm_cb = osmo_gsup_server_ccm_cb;
- OSMO_ASSERT(conn->conn);
-
- /* link data structure with server structure */
- conn->server = gsups;
- llist_add_tail(&conn->list, &gsups->clients);
-
- LOGP(DGSUP, LOGL_INFO, "New GSUP client %s:%d\n",
- conn->conn->addr, conn->conn->port);
-
- /* request the identity of the client */
- rc = ipa_ccm_send_id_req(fd);
- if (rc < 0)
- goto failed;
-#if 0
- rc = oap_init(&gsups->oap_config, &conn->oap_state);
- if (rc != 0)
- goto failed;
-#endif
- return 0;
-failed:
- ipa_server_conn_destroy(conn->conn);
- return -1;
-}
-
-struct osmo_gsup_server *
-osmo_gsup_server_create(void *ctx, const char *ip_addr,
- uint16_t tcp_port,
- osmo_gsup_read_cb_t read_cb)
-{
- struct osmo_gsup_server *gsups;
- int rc;
-
- gsups = talloc_zero(ctx, struct osmo_gsup_server);
- OSMO_ASSERT(gsups);
-
- INIT_LLIST_HEAD(&gsups->clients);
- INIT_LLIST_HEAD(&gsups->routes);
-
- gsups->link = ipa_server_link_create(gsups,
- /* no e1inp */ NULL,
- ip_addr, tcp_port,
- osmo_gsup_server_accept_cb,
- gsups);
- if (!gsups->link)
- goto failed;
-
- gsups->read_cb = read_cb;
-
- rc = ipa_server_link_open(gsups->link);
- if (rc < 0)
- goto failed;
-
- return gsups;
-
-failed:
- osmo_gsup_server_destroy(gsups);
- return NULL;
-}
-
-void osmo_gsup_server_destroy(struct osmo_gsup_server *gsups)
-{
- if (gsups->link) {
- ipa_server_link_close(gsups->link);
- ipa_server_link_destroy(gsups->link);
- gsups->link = NULL;
- }
- talloc_free(gsups);
-}