| /* Utility code for Diag Packet Logging */ |
| /* |
| * (C) 2016 by Harald Welte <laforge@gnumonks.org> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 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 General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License along |
| * with this program; if not, write to the Free Software Foundation, Inc., |
| * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| */ |
| |
| #include <errno.h> |
| #include <string.h> |
| #include <osmocom/core/utils.h> |
| #include <osmocom/core/msgb.h> |
| |
| #include "diag_log.h" |
| #include "diag_io.h" |
| #include "diag_dpl.h" |
| #include "protocol/diagcmd.h" |
| #include "protocol/diag_log_1x.h" |
| #include "protocol/dpl.h" |
| |
| /* iface-id 0..99 */ |
| /* every interface has multiple physical links */ |
| /* iid contains flag info: 16bits LDFx IFNA PROT LINS, see struct |
| * dpl_iid |
| */ |
| |
| int diag_dpl_reset_logging(struct diag_instance *di) |
| { |
| struct msgb *msg = msgb_alloc_diag(); |
| struct msgb *rx; |
| diag_push_subsys_hdr(msg, DIAG_SUBSYS_PS_DATA_LOGGING, |
| DIAG_DPL_RESET_LOGGING); |
| rx = diag_transceive_msg(di, msg); |
| /* FIXME */ |
| msgb_free(rx); |
| return 0; |
| } |
| |
| int diag_dpl_get_sup_if(struct diag_instance *di) |
| { |
| struct msgb *msg = msgb_alloc_diag(); |
| struct msgb *rx; |
| struct dpl_get_sup_if_resp *gsir; |
| rx = diag_subsys_transceive_msg(di, msg, DIAG_SUBSYS_PS_DATA_LOGGING, |
| DIAG_DPL_GET_SUPPORTED_IFACES); |
| if (!rx) |
| return -EINVAL; |
| gsir = (struct dpl_get_sup_if_resp *) msg->l3h; |
| printf("DPL Supported interfaces: %s\n", |
| osmo_hexdump(gsir->iface_id, gsir->num_ifaces)); |
| msgb_free(rx); |
| return 0; |
| } |
| |
| int diag_dpl_get_if_desc(struct diag_instance *di, uint8_t iface_id) |
| { |
| struct msgb *msg = msgb_alloc_diag(); |
| struct msgb *rx; |
| struct dpl_get_if_desc_req *gidr; |
| uint8_t if_num, num_links; |
| char *if_name, *link_name; |
| unsigned int i; |
| |
| gidr = (struct dpl_get_if_desc_req *) msgb_put(msg, sizeof(*gidr)); |
| gidr->iface_id = iface_id; |
| rx = diag_subsys_transceive_msg(di, msg, DIAG_SUBSYS_PS_DATA_LOGGING, |
| DIAG_DPL_GET_IFACE_DESC); |
| if (!rx) |
| return -EINVAL; |
| if_num = rx->l3h[0]; |
| if_name = (char *)rx->l3h+1; |
| num_links = *(rx->l3h+1+strlen(if_name)+1); |
| printf("DPL Interface %u \"%s\" num_links=%u\n", if_num, if_name, num_links); |
| link_name = (char *) rx->l3h+1+strlen(if_name)+1+1; |
| for (i = 0; i < num_links; i++) { |
| printf("\tLink %u: \"%s\"\n", i, link_name); |
| link_name += strlen(link_name) + 1; |
| } |
| msgb_free(rx); |
| return 0; |
| } |
| |
| int diag_dpl_set_if_log(struct diag_instance *di, uint8_t iface_id, |
| struct dpl_iid iid, uint32_t link_type) |
| { |
| struct msgb *msg = msgb_alloc_diag(); |
| struct dpl_set_if_log_req *silr; |
| struct msgb *rx; |
| |
| silr = (struct dpl_set_if_log_req *) msgb_put(msg, sizeof(*silr)); |
| silr->iface_id = iface_id; |
| silr->num_log_flags = 1; |
| msgb_put(msg, sizeof(silr->log_flags[0])); |
| silr->log_flags[0].iid = iid; |
| silr->log_flags[0].link_type = link_type; |
| |
| rx = diag_transceive_msg(di, msg); |
| /* FIXME */ |
| msgb_free(rx); |
| |
| return 0; |
| } |
| |
| /* LOG_DATA_PROTOCOL_LOGGING_C must be enabled */ |
| /* dpli_log_full_packet() used to log packet; maximum of 256 bytes per |
| * diag message; DPLI_BUILD_LOG_PACKET */ |
| static void handle_pcap_msg(struct log_hdr *lh, struct msgb *msg) |
| { |
| struct dpl_hdr *dh = (struct dpl_hdr *) msgb_data(msg); |
| printf("PCAP(fl=0x%02x, ifn=0x%02x, prot=0x%02x, inst=%u, seq=%u, seg=%u): %s\n", |
| dh->iid.flags, dh->iid.if_name, dh->iid.protocol, |
| dh->iid.link_instance, dh->seq_nr, dh->seg_num, |
| osmo_hexdump(dh->data, msgb_length(msg)-sizeof(*dh))); |
| } |
| |
| static const struct diag_log_dispatch_tbl log_tbl[] = { |
| { L1X(LOG_DATA_PROTOCOL_LOGGING_C), handle_pcap_msg }, |
| }; |
| |
| static __attribute__((constructor)) void on_dso_load_gsm(void) |
| { |
| diag_log_reg_dispatch(log_tbl, ARRAY_SIZE(log_tbl)); |
| } |