391 lines
9.5 KiB
C
391 lines
9.5 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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#include "usb.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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static struct cmd_node intf_node = {
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(enum node_type) INTF_NODE,
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"%s(config-e1d-intf)# ",
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1,
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};
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static struct cmd_node line_node = {
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(enum node_type) LINE_NODE,
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"%s(config-e1d-intf-line)# ",
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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 const char *intf_serno(const struct e1_intf *intf)
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{
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if (intf->usb.serial_str)
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return intf->usb.serial_str;
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else
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return "unnamed";
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}
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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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char buf[128];
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vty_out(vty, "Interface #%u (%s), Driver: %s%s", intf->id, intf_serno(intf),
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get_value_string(e1_driver_names, intf->drv), VTY_NEWLINE);
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/* TODO: put this behind some call-back */
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switch (intf->drv) {
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case E1_DRIVER_USB:
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e1_usb_intf_gpsdo_state_string(buf, sizeof(buf), intf);
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vty_out(vty, " GPS-DO: %s%s", buf, VTY_NEWLINE);
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break;
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default:
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break;
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}
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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 (%s), Line #%u, Mode %s%s%s:%s", line->intf->id,
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intf_serno(line->intf), line->id,
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osmo_str_toupper(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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DEFUN(cfg_e1d_if_icE1usb, cfg_e1d_if_icE1usb_cmd, "interface <0-255> icE1usb",
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"Configure an icE1usb E1 interface\n"
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"E1 Interface Number\n")
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{
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struct e1_intf *intf;
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int intf_nr = atoi(argv[0]);
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intf = e1d_find_intf(vty_e1d, intf_nr);
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if (!intf) {
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intf = e1_intf_new(vty_e1d, intf_nr, NULL);
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}
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if (!intf) {
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vty_out(vty, "%% Could not create interface%s", VTY_NEWLINE);
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return CMD_WARNING;
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}
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intf->drv = E1_DRIVER_USB;
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intf->vty_created = true;
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vty->index = intf;
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vty->node = INTF_NODE;
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return CMD_SUCCESS;
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}
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DEFUN(cfg_e1d_if_vpair, cfg_e1d_if_vpair_cmd, "interface <0-255> vpair",
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"Configure a vpair member interface\n"
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"E1 Interface Number\n")
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{
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struct e1_intf *intf;
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int intf_nr = atoi(argv[0]);
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intf = e1d_find_intf(vty_e1d, intf_nr);
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if (!intf) {
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vty_out(vty, "%% Could not find E1 interface %u, ddi you create it "
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"using viertual-e1-pair?%s", intf_nr, VTY_NEWLINE);
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return CMD_WARNING;
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}
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if (intf->drv != E1_DRIVER_VPAIR) {
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vty_out(vty, "%% Interface %u is not a vpair interface%s", intf_nr, VTY_NEWLINE);
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return CMD_WARNING;
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}
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intf->vty_created = true;
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vty->index = intf;
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vty->node = INTF_NODE;
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return CMD_SUCCESS;
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}
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DEFUN(cfg_e1d_if_usb_serial, cfg_e1d_if_usb_serial_cmd,
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"usb-serial SERNO",
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"Configure the USB serial number of an E1 interface device\n"
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"iSerial string\n")
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{
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struct e1_intf *intf = vty->index;
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if (intf->drv != E1_DRIVER_USB)
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return CMD_WARNING;
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osmo_talloc_replace_string(intf, &intf->usb.serial_str, argv[0]);
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return CMD_SUCCESS;
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}
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DEFUN(cfg_e1d_if_line, cfg_e1d_if_line_cmd, "line <0-255>",
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"Configure an E1 line\n"
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"E1 Interface Number\n")
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{
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struct e1_intf *intf = vty->index;
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struct e1_line *line;
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int line_nr = atoi(argv[0]);
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line = e1_intf_find_line(intf, line_nr);
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if (!line)
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line = e1_line_new(intf, line_nr, NULL);
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if (!line) {
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vty_out(vty, "%% Could not create line%s", VTY_NEWLINE);
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return CMD_WARNING;
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}
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vty->index = line;
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vty->node = LINE_NODE;
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return CMD_SUCCESS;
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}
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DEFUN(cfg_e1d_if_line_mode, cfg_e1d_if_line_mode_cmd,
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"mode (channelized|superchannel)",
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"Configure the mode of the E1 line\n"
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"Channelized (64kBps timeslot) mode\n"
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"Superchannel (1xHDLC over 31x64kBps) mode\n")
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{
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struct e1_line *line = vty->index;
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line->mode = get_string_value(e1_line_mode_names, argv[0]);
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return CMD_SUCCESS;
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}
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static int config_write_line(struct vty *vty, struct e1_line *line)
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{
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vty_out(vty, " line %u%s", line->id, VTY_NEWLINE);
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vty_out(vty, " mode %s%s", get_value_string(e1_line_mode_names, line->mode), VTY_NEWLINE);
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return 0;
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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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/* dump line config for those lines that were created by the vty */
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llist_for_each_entry(intf, &vty_e1d->interfaces, list) {
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struct e1_line *line;
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if (!intf->vty_created)
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continue;
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switch (intf->drv) {
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case E1_DRIVER_USB:
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vty_out(vty, " interface %u icE1usb%s", intf->id, VTY_NEWLINE);
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if (intf->usb.serial_str && strlen(intf->usb.serial_str))
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vty_out(vty, " usb-serial %s%s", intf->usb.serial_str, VTY_NEWLINE);
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break;
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case E1_DRIVER_VPAIR:
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vty_out(vty, " interface %u vpair%s", intf->id, VTY_NEWLINE);
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break;
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default:
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break;
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}
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llist_for_each_entry(line, &intf->lines, list)
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config_write_line(vty, line);
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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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install_node(&intf_node, NULL);
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install_element(E1D_NODE, &cfg_e1d_if_icE1usb_cmd);
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install_element(E1D_NODE, &cfg_e1d_if_vpair_cmd);
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install_element(INTF_NODE, &cfg_e1d_if_line_cmd);
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install_element(INTF_NODE, &cfg_e1d_if_usb_serial_cmd);
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install_node(&line_node, NULL);
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install_element(LINE_NODE, &cfg_e1d_if_line_mode_cmd);
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}
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