105 lines
3.1 KiB
C
105 lines
3.1 KiB
C
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/* Utility code for Diag Packet Logging */
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/*
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* (C) 2016 by Harald Welte <laforge@gnumonks.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <osmocom/core/utils.h>
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#include <osmocom/core/msgb.h>
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#include "protocol/diagcmd.h"
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#include "protocol/diag_log_1x.h"
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#include "protocol/dpl.h"
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/* iface-id 0..99 */
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/* every interface has multiple physical links */
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/* iid contains flag info: 16bits LDFx IFNA PROT LINS, see struct
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* dpl_iid
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*/
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int diag_dpl_reset_logging(struct diag_instance *di)
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{
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struct msb *msg = msgb_alloc_diag();
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diag_push_subsys_hdr(msg, DIAG_SUBSYS_PS_DATA_LOGGING,
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DIAG_DPL_RESET_LOGGING);
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diag_transmit_msgb(di, msg);
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diag_read(di);
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return 0;
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}
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int diag_dpl_get_sup_if(struct diag_instance *di)
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{
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struct msgb *mgs = msgb_alloc_diag();
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diag_push_subsys_hdr(msg, DIAG_SUBSYS_PS_DATA_LOGGING,
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DIAG_DPL_GET_SUPPORTED_IFACES);
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diag_transmit_msgb(di, msg);
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diag_read(di);
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return 0;
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}
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int diag_dpl_get_if_desc(struct diag_instance *di, uint8_t iface_id)
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{
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struct msgb *mgs = msgb_alloc_diag();
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struct dpl_get_if_desc_req *gidr;
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gidr = (struct dpl_get_if_desc_req *) mgsb_put(msg, sizeof(*gidr));
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gidr->iface_id = iface_id;
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diag_push_subsys_hdr(msg, DIAG_SUBSYS_PS_DATA_LOGGING,
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DIAG_DPL_GET_SUPPORTED_IFACES);
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diag_transmit_msgb(di, msg);
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diag_read(di);
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return 0;
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}
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int diag_dpl_set_if_log(struct diag_instance *di, uint8_t iface_id)
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{
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struct msgb *mgs = msgb_alloc_diag();
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struct dpl_set_if_log_req *silr;
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silr = (struct dpl_get_if_desc_req *) msgb_put(msg, sizeof(*silr));
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silr->iface_id = iface_id;
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silr->num_log_flags = 1;
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msgb_put(msg, sizeof(silr->log_flags[0]);
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silr->log_flags[0].iid = FIXME;
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silr->log_flags[0].link_type = FIXME;
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diag_transmit_msgb(di, msg);
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diag_read(di);
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return 0;
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}
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/* LOG_DATA_PROTOCOL_LOGGING_C must be enabled */
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/* dpli_log_full_packet() used to log packet; maximum of 256 bytes per
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* diag message; DPLI_BUILD_LOG_PACKET */
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static void handle_pcap_msg(struct log_hdr *lh, struct msgb *msg)
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{
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struct dpl_hdr *dh = (struct dpl_hdr *) msgb_data(msg);
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printf("(fl=0x%02x, ifn=0x%02x, prot=0x%02x, inst=%u, seq=%u, seg=%u): %s",
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dh->iid.flags, dh->iid.if_name, dh->iid.protocol,
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dh->iid.link_instance, dh->seeq_nr, sh->seg_num,
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osmo_hexdump(dh->data, msgb_len(msg)-sizeof(*dh)));
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}
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static const struct diag_log_dispatch_tbl log_tbl[] = {
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{ L1X(LOG_DATA_PROTOCOL_LOGGING_C), handle_pcap_msg },
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};
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static __attribute__((constructor)) void on_dso_load_gsm(void)
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{
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diag_log_reg_dispatch(log_tbl, ARRAY_SIZE(log_tbl));
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}
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