Harald Welte | 2ff0ab9 | 2018-08-17 22:10:49 +0200 | [diff] [blame] | 1 | |
| 2 | #include <errno.h> |
| 3 | #include <string.h> |
| 4 | |
| 5 | #include <talloc.h> |
| 6 | |
| 7 | #include <osmocom/core/msgb.h> |
| 8 | #include <osmocom/core/fsm.h> |
| 9 | #include <osmocom/core/utils.h> |
| 10 | #include <osmocom/core/logging.h> |
| 11 | #include <osmocom/core/application.h> |
| 12 | |
| 13 | #include <osmocom/abis/ipa.h> |
| 14 | #include <osmocom/gsm/protocol/ipaccess.h> |
| 15 | |
| 16 | #include "rspro_util.h" |
Harald Welte | 24173fb | 2018-08-24 20:37:28 +0200 | [diff] [blame] | 17 | #include "client.h" |
Harald Welte | 61d98e9 | 2019-03-03 15:43:07 +0100 | [diff] [blame] | 18 | #include "debug.h" |
Harald Welte | 2ff0ab9 | 2018-08-17 22:10:49 +0200 | [diff] [blame] | 19 | |
Harald Welte | 24173fb | 2018-08-24 20:37:28 +0200 | [diff] [blame] | 20 | static int bankd_handle_msg(struct bankd_client *bc, struct msgb *msg) |
Harald Welte | 2ff0ab9 | 2018-08-17 22:10:49 +0200 | [diff] [blame] | 21 | { |
Harald Welte | 24173fb | 2018-08-24 20:37:28 +0200 | [diff] [blame] | 22 | RsproPDU_t *pdu = rspro_dec_msg(msg); |
| 23 | if (!pdu) { |
| 24 | fprintf(stderr, "Error decoding PDU\n"); |
| 25 | return -1; |
Harald Welte | 2ff0ab9 | 2018-08-17 22:10:49 +0200 | [diff] [blame] | 26 | } |
Harald Welte | 24173fb | 2018-08-24 20:37:28 +0200 | [diff] [blame] | 27 | |
| 28 | switch (pdu->msg.present) { |
| 29 | case RsproPDUchoice_PR_connectClientRes: |
Harald Welte | e56f2b9 | 2019-03-02 17:02:13 +0100 | [diff] [blame] | 30 | /* Store 'identity' of bankd to in peer_comp_id */ |
| 31 | rspro_comp_id_retrieve(&bc->peer_comp_id, &pdu->msg.choice.connectClientRes.identity); |
Harald Welte | 417b961 | 2018-09-24 14:53:41 +0200 | [diff] [blame] | 32 | osmo_fsm_inst_dispatch(bc->bankd_fi, BDC_E_CLIENT_CONN_RES, pdu); |
Harald Welte | 24173fb | 2018-08-24 20:37:28 +0200 | [diff] [blame] | 33 | break; |
| 34 | default: |
| 35 | fprintf(stderr, "Unknown/Unsuppoerted RSPRO PDU: %s\n", msgb_hexdump(msg)); |
| 36 | return -1; |
| 37 | } |
| 38 | |
| 39 | return 0; |
Harald Welte | 2ff0ab9 | 2018-08-17 22:10:49 +0200 | [diff] [blame] | 40 | } |
| 41 | |
Harald Welte | 24173fb | 2018-08-24 20:37:28 +0200 | [diff] [blame] | 42 | int bankd_read_cb(struct ipa_client_conn *conn, struct msgb *msg) |
Harald Welte | 2ff0ab9 | 2018-08-17 22:10:49 +0200 | [diff] [blame] | 43 | { |
| 44 | struct ipaccess_head *hh = (struct ipaccess_head *) msg->data; |
| 45 | struct ipaccess_head_ext *he = (struct ipaccess_head_ext *) msgb_l2(msg); |
| 46 | struct bankd_client *bc = conn->data; |
Harald Welte | 24173fb | 2018-08-24 20:37:28 +0200 | [diff] [blame] | 47 | int rc; |
Harald Welte | 2ff0ab9 | 2018-08-17 22:10:49 +0200 | [diff] [blame] | 48 | |
| 49 | if (msgb_length(msg) < sizeof(*hh)) |
| 50 | goto invalid; |
| 51 | msg->l2h = &hh->data[0]; |
Harald Welte | 1a17104 | 2019-03-08 19:18:52 +0100 | [diff] [blame^] | 52 | switch (hh->proto) { |
| 53 | case IPAC_PROTO_OSMO: |
| 54 | if (!he || msgb_l2len(msg) < sizeof(*he)) |
| 55 | goto invalid; |
| 56 | msg->l2h = &he->data[0]; |
| 57 | switch (he->proto) { |
| 58 | case IPAC_PROTO_EXT_RSPRO: |
| 59 | printf("Received RSPRO %s\n", msgb_hexdump(msg)); |
| 60 | rc = bankd_handle_msg(bc, msg); |
| 61 | break; |
| 62 | default: |
| 63 | goto invalid; |
| 64 | } |
| 65 | break; |
| 66 | default: |
Harald Welte | 2ff0ab9 | 2018-08-17 22:10:49 +0200 | [diff] [blame] | 67 | goto invalid; |
Harald Welte | 1a17104 | 2019-03-08 19:18:52 +0100 | [diff] [blame^] | 68 | } |
Harald Welte | 24173fb | 2018-08-24 20:37:28 +0200 | [diff] [blame] | 69 | |
| 70 | return rc; |
Harald Welte | 2ff0ab9 | 2018-08-17 22:10:49 +0200 | [diff] [blame] | 71 | |
| 72 | invalid: |
| 73 | msgb_free(msg); |
| 74 | return -1; |
| 75 | } |
| 76 | |
Harald Welte | 24173fb | 2018-08-24 20:37:28 +0200 | [diff] [blame] | 77 | static struct bankd_client *g_client; |
Harald Welte | 2ff0ab9 | 2018-08-17 22:10:49 +0200 | [diff] [blame] | 78 | static void *g_tall_ctx; |
| 79 | void __thread *talloc_asn1_ctx; |
Harald Welte | 43ab79f | 2018-10-03 23:34:21 +0200 | [diff] [blame] | 80 | int asn_debug; |
Harald Welte | 2ff0ab9 | 2018-08-17 22:10:49 +0200 | [diff] [blame] | 81 | |
Harald Welte | e56f2b9 | 2019-03-02 17:02:13 +0100 | [diff] [blame] | 82 | /* handle incoming messages from server */ |
| 83 | static int srvc_handle_rx(struct rspro_server_conn *srvc, const RsproPDU_t *pdu) |
| 84 | { |
| 85 | RsproPDU_t *resp; |
| 86 | |
| 87 | switch (pdu->msg.present) { |
| 88 | case RsproPDUchoice_PR_connectClientRes: |
| 89 | /* Store 'identity' of server in srvc->peer_comp_id */ |
| 90 | rspro_comp_id_retrieve(&srvc->peer_comp_id, &pdu->msg.choice.connectClientRes.identity); |
| 91 | osmo_fsm_inst_dispatch(srvc->fi, SRVC_E_CLIENT_CONN_RES, (void *) pdu); |
| 92 | break; |
| 93 | case RsproPDUchoice_PR_configClientReq: |
| 94 | /* store/set the clientID as instructed by the server */ |
| 95 | if (!g_client->clslot) |
| 96 | g_client->clslot = talloc_zero(g_client, ClientSlot_t); |
| 97 | *g_client->clslot = pdu->msg.choice.configClientReq.clientSlot; |
| 98 | /* store/set the bankd ip/port as instructed by the server */ |
| 99 | osmo_talloc_replace_string(g_client, &g_client->bankd_host, |
| 100 | rspro_IpAddr2str(&pdu->msg.choice.configClientReq.bankd.ip)); |
| 101 | g_client->bankd_port = ntohs(pdu->msg.choice.configClientReq.bankd.port); |
| 102 | /* instruct bankd FSM to connect */ |
| 103 | osmo_fsm_inst_dispatch(g_client->bankd_fi, BDC_E_ESTABLISH, NULL); |
| 104 | /* send response to server */ |
| 105 | resp = rspro_gen_ConfigClientRes(ResultCode_ok); |
| 106 | ipa_client_conn_send_rspro(srvc->conn, resp); |
| 107 | break; |
| 108 | default: |
| 109 | fprintf(stderr, "Unknown/Unsupported RSPRO PDU type: %u\n", pdu->msg.present); |
| 110 | return -1; |
| 111 | } |
| 112 | |
| 113 | return 0; |
| 114 | } |
| 115 | |
Harald Welte | 2ff0ab9 | 2018-08-17 22:10:49 +0200 | [diff] [blame] | 116 | int main(int argc, char **argv) |
| 117 | { |
Harald Welte | e56f2b9 | 2019-03-02 17:02:13 +0100 | [diff] [blame] | 118 | struct rspro_server_conn *srvc; |
| 119 | int rc; |
| 120 | |
Harald Welte | 2ff0ab9 | 2018-08-17 22:10:49 +0200 | [diff] [blame] | 121 | g_tall_ctx = talloc_named_const(NULL, 0, "global"); |
| 122 | |
Harald Welte | 24173fb | 2018-08-24 20:37:28 +0200 | [diff] [blame] | 123 | g_client = talloc_zero(g_tall_ctx, struct bankd_client); |
Harald Welte | e56f2b9 | 2019-03-02 17:02:13 +0100 | [diff] [blame] | 124 | |
| 125 | srvc = &g_client->srv_conn; |
| 126 | srvc->server_host = "localhost"; |
| 127 | srvc->server_port = 9998; |
| 128 | srvc->handle_rx = srvc_handle_rx; |
| 129 | srvc->own_comp_id.type = ComponentType_remsimClient; |
| 130 | OSMO_STRLCPY_ARRAY(srvc->own_comp_id.name, "fixme-name"); |
| 131 | OSMO_STRLCPY_ARRAY(srvc->own_comp_id.software, "remsim-client"); |
| 132 | OSMO_STRLCPY_ARRAY(srvc->own_comp_id.sw_version, PACKAGE_VERSION); |
| 133 | rc = server_conn_fsm_alloc(g_client, srvc); |
| 134 | if (rc < 0) { |
| 135 | fprintf(stderr, "Unable to create Server conn FSM: %s\n", strerror(errno)); |
| 136 | exit(1); |
| 137 | } |
Harald Welte | 2ff0ab9 | 2018-08-17 22:10:49 +0200 | [diff] [blame] | 138 | |
Harald Welte | 43ab79f | 2018-10-03 23:34:21 +0200 | [diff] [blame] | 139 | asn_debug = 0; |
Harald Welte | 2ff0ab9 | 2018-08-17 22:10:49 +0200 | [diff] [blame] | 140 | osmo_init_logging2(g_tall_ctx, &log_info); |
| 141 | |
Harald Welte | 24173fb | 2018-08-24 20:37:28 +0200 | [diff] [blame] | 142 | if (bankd_conn_fsm_alloc(g_client) < 0) { |
Harald Welte | 2ff0ab9 | 2018-08-17 22:10:49 +0200 | [diff] [blame] | 143 | fprintf(stderr, "Unable to connect: %s\n", strerror(errno)); |
| 144 | exit(1); |
| 145 | } |
Harald Welte | 2ff0ab9 | 2018-08-17 22:10:49 +0200 | [diff] [blame] | 146 | |
| 147 | while (1) { |
| 148 | osmo_select_main(0); |
| 149 | } |
| 150 | } |