160 lines
4.3 KiB
C
160 lines
4.3 KiB
C
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/*
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* (C) 2013-2016 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 <stdio.h>
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#include <string.h>
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#include <stdint.h>
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#include <osmocom/core/msgb.h>
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#include "diag_cmd.h"
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#include "protocol/protocol.h"
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#include "protocol/diagcmd.h"
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/***********************************************************************
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* EVENT Configuration / Protocol
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***********************************************************************/
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struct diag_event_mask_set_req {
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uint8_t cmd_code;
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uint8_t pad[3];
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uint8_t mask[0];
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} __attribute__((packed));
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struct diag_event_cfg_req {
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uint8_t cmd_code;
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uint8_t enable;
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} __attribute__((packed));
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static struct msgb *gen_event_set_mask(uint32_t last_item)
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{
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struct msgb *msg = msgb_alloc(DIAG_MAX_REQ_SIZE, "Diag Event Cfg");
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struct diag_event_mask_set_req *demsr;
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msg->l2h = msgb_put(msg, sizeof(*demsr));
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demsr = (struct diag_event_mask_set_req *) msg->l2h;
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demsr->cmd_code = DIAG_EVENT_MASK_SET_F;
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msg->l3h = msgb_put(msg, bytes_rqd_for_bit(last_item));
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return msg;
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}
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int diag_event_set_bit(struct msgb *msg, uint32_t bit_in)
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{
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struct diag_event_mask_set_req *demsr;
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demsr = (struct diag_event_mask_set_req *) msg->l2h;
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uint8_t *mask = demsr->mask;
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unsigned int byte = bit_in / 8;
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unsigned int bit = bit_in % 8;
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if (mask + byte > msg->tail) {
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fprintf(stderr, "bit %u is outside event mask!\n", bit_in);
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return -1;
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}
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mask[byte] |= (1 << bit);
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return 0;
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}
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struct diag_event_id {
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uint16_t id:12,
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_pad:1,
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payload_len:2, /* 0x2000, 0x4000 */
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ts_trunc:1; /* 0x8000 */
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} __attribute__ ((packed));
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struct diag_event_report_event {
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struct diag_event_id event_id;
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uint64_t timestamp;
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uint8_t payload[0];
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} __attribute__ ((packed));
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struct diag_event_report_event_trunc {
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struct diag_event_id event_id;
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uint16_t timestamp_trunc;
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uint8_t payload[0];
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} __attribute__ ((packed));
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struct diag_event_report {
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uint8_t cmd_code;
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uint16_t len;
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struct diag_event_report_event events[0];
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} __attribute__ ((packed));
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static void diag_rx_event_report_f(struct diag_instance *di, struct msgb *msg)
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{
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struct diag_event_report *erep = (struct diag_event_report *) msgb_l2(msg);
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uint16_t erep_len = osmo_load16le(&erep->len);
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uint8_t *cur;
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//printf("EVENT (erep_len=%u): %s\n", erep_len, msgb_hexdump(msg));
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for (cur = (uint8_t *)erep->events; cur < (uint8_t *)erep->events + erep_len;) {
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uint16_t _eid = osmo_load16le(cur);
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struct diag_event_id *event_id = (struct diag_event_id *)&_eid;
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if (event_id->ts_trunc) {
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struct diag_event_report_event_trunc *ret;
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ret = (struct diag_event_report_event_trunc *) cur;
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cur += sizeof(*ret);
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printf("EVENT-TRUNC(0x%04x|FIXME)", event_id->id);
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} else {
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struct diag_event_report_event *re;
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re = (struct diag_event_report_event *) cur;
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cur += sizeof(*re);
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uint64_t ts = osmo_load64le(&re->timestamp);
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printf("EVENT(0x%04x|%u|%u)", event_id->id,
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diag_ts_to_epoch(ts), diag_ts_to_fn(ts));
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}
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switch (event_id->payload_len) {
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case 0:
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printf("\n");
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break;
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case 1:
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printf(": 0x%02x\n", cur[0]);
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cur += 1;
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break;
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case 2:
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printf(": 0x%02x, 0x%02x\n", cur[0], cur[1]);
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cur += 2;
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break;
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case 3:
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printf(": %s\n", osmo_hexdump(cur+1, *cur));
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cur += *cur + 1;
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break;
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}
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}
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#if 0
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for (i = 0; (i+1)*sizeof(struct diag_event_report_event) <= erep_len; i++) {
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struct diag_event_report_event *evt = &erep->events[i];
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uint16_t event_id = osmo_load16le(&evt->event_id);
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}
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#endif
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}
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static const struct diag_cmd_dispatch_tbl cmd_tbl[] = {
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{ DIAG_EVENT_REPORT_F, diag_rx_event_report_f },
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};
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static __attribute__((constructor)) void on_dso_load_event(void)
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{
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diag_cmd_reg_dispatch(cmd_tbl, ARRAY_SIZE(cmd_tbl));
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}
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