220 lines
5.4 KiB
C
220 lines
5.4 KiB
C
/* osmo-e1d VTY interface */
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/* (C) 2020 by Harald Welte <laforge@osmocom.org>
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* All Rights Reserved
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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
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#define _GNU_SOURCE /* struct ucred */
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#include <sys/socket.h>
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#include <stdlib.h>
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#include <stdbool.h>
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#include <unistd.h>
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#include <time.h>
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#include <osmocom/core/linuxlist.h>
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#include <osmocom/vty/command.h>
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#include <osmocom/vty/buffer.h>
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#include <osmocom/vty/vty.h>
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#include <osmocom/vty/logging.h>
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#include <osmocom/vty/stats.h>
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#include <osmocom/vty/telnet_interface.h>
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#include <osmocom/vty/misc.h>
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#include <osmocom/vty/tdef_vty.h>
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#include <osmocom/e1d/proto.h>
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#include "e1d.h"
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struct e1_daemon *vty_e1d;
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static struct cmd_node e1d_node = {
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(enum node_type) E1D_NODE,
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"%s(config-e1d)# ",
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1,
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};
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#if 0
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static void vty_dump_ts(struct vty *vty, const struct e1_ts *ts)
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{
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}
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#endif
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static void vty_dump_intf(struct vty *vty, const struct e1_intf *intf)
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{
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vty_out(vty, "Interface #%u, Driver: %s%s", intf->id,
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get_value_string(e1_driver_names, intf->drv), VTY_NEWLINE);
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}
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DEFUN(show_intf, show_intf_cmd, "show interface [<0-255>]",
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SHOW_STR "Display information about an E1 Interface/Card\n")
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{
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struct e1_intf *intf;
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if (argc) {
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int id = atoi(argv[0]);
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intf = e1d_find_intf(vty_e1d, id);
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if (!intf) {
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vty_out(vty, "%% Unknown interface %u%s\n", id, VTY_NEWLINE);
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return CMD_WARNING;
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}
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vty_dump_intf(vty, intf);
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} else {
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llist_for_each_entry(intf, &vty_e1d->interfaces, list)
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vty_dump_intf(vty, intf);
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}
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return CMD_SUCCESS;
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}
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static int get_remote_pid(int fd)
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{
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struct ucred uc;
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socklen_t len = sizeof(uc);
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int rc;
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rc = getsockopt(fd, SOL_SOCKET, SO_PEERCRED, &uc, &len);
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if (rc != 0)
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return -1;
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return uc.pid;
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}
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const struct value_string e1_ts_mode_names[] = {
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{ E1_TS_MODE_OFF, "OFF" },
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{ E1_TS_MODE_RAW, "RAW" },
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{ E1_TS_MODE_HDLCFCS, "HDLC-FCS" },
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{ 0, NULL }
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};
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const struct value_string e1_line_mode_names[] = {
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{ E1_LINE_MODE_CHANNELIZED, "CHANNELIZED" },
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{ E1_LINE_MODE_SUPERCHANNEL, "SUPERCHANNEL" },
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{ 0, NULL }
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};
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static void vty_dump_line(struct vty *vty, const struct e1_line *line)
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{
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unsigned int tn;
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vty_out(vty, "Interface #%u, Line #%u, Mode %s%s%s:%s", line->intf->id, line->id,
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get_value_string(e1_line_mode_names, line->mode),
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line->ts0.cur_errmask & E1L_TS0_RX_ALARM ? " [REMOTE-ALARM]" : "",
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line->ts0.cur_errmask & E1L_TS0_RX_CRC4_ERR ? " [REMOTE-CRC-ERROR]" : "",
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VTY_NEWLINE);
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for (tn = 0; tn < ARRAY_SIZE(line->ts); tn++) {
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const struct e1_ts *ts = &line->ts[tn];
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vty_out(vty, " TS%02u: Mode %s, FD %d, Peer PID %d%s",
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ts->id, get_value_string(e1_ts_mode_names, ts->mode),
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ts->fd, get_remote_pid(ts->fd), VTY_NEWLINE);
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}
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vty_out(vty, " SC: Mode %s, FD %d, Peer PID %d%s",
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get_value_string(e1_ts_mode_names, line->superchan.mode),
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line->superchan.fd, get_remote_pid(line->superchan.fd), VTY_NEWLINE);
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vty_out_rate_ctr_group(vty, " ", line->ctrs);
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}
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DEFUN(show_line, show_line_cmd, "show line [<0-255>]",
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SHOW_STR "Display information about an E1 Line\n")
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{
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struct e1_line *line;
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struct e1_intf *intf;
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if (argc) {
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int id = atoi(argv[0]);
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intf = e1d_find_intf(vty_e1d, id);
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if (!intf) {
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vty_out(vty, "%% Unknown interface %u%s\n", id, VTY_NEWLINE);
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return CMD_WARNING;
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}
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llist_for_each_entry(line, &intf->lines, list)
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vty_dump_line(vty, line);
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} else {
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llist_for_each_entry(intf, &vty_e1d->interfaces, list) {
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llist_for_each_entry(line, &intf->lines, list)
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vty_dump_line(vty, line);
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}
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}
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return CMD_SUCCESS;
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}
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DEFUN(cfg_e1d, cfg_e1d_cmd, "e1d",
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"E1 Daemon specific configuration\n")
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{
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vty->node = E1D_NODE;
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return CMD_SUCCESS;
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}
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DEFUN(cfg_vpair, cfg_vpair_cmd, "virtual-e1-pair <1-255>",
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"Create a virtual E1 interface pair\n"
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"Number of E1 lines in virtual E1 interface pair\n")
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{
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int num_lines = atoi(argv[0]);
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int rc;
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rc = e1d_vpair_create(vty_e1d, num_lines);
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if (rc < 0) {
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vty_out(vty, "%% Error creating virtual-e1-pair: %d%s", rc, VTY_NEWLINE);
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return CMD_WARNING;
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}
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return CMD_SUCCESS;
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}
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static int config_write_e1d(struct vty *vty)
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{
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struct e1_intf *intf;
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vty_out(vty, "e1d%s", VTY_NEWLINE);
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/* find all vpair interfaces */
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llist_for_each_entry(intf, &vty_e1d->interfaces, list) {
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struct e1_intf *peer;
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unsigned int line_count = 0;
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struct e1_line *line;
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if (intf->drv != E1_DRIVER_VPAIR)
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continue;
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peer = e1d_vpair_intf_peer(intf);
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OSMO_ASSERT(peer);
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/* skip the 'mirror' interfaces */
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if (intf->id > peer->id)
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continue;
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llist_for_each_entry(line, &intf->lines, list)
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line_count++;
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vty_out(vty, " virtual-e1-pair %u%s", line_count, VTY_NEWLINE);
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}
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return 0;
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}
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void e1d_vty_init(struct e1_daemon *e1d)
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{
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vty_e1d = e1d;
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install_element_ve(&show_intf_cmd);
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install_element_ve(&show_line_cmd);
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install_node(&e1d_node, config_write_e1d);
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install_element(CONFIG_NODE, &cfg_e1d_cmd);
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install_element(E1D_NODE, &cfg_vpair_cmd);
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}
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