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dahdi-tools/sethdlc.c

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/*
* sethdlc.c
*
* Copyright (C) 1999 - 2002 Krzysztof Halasa <khc@pm.waw.pl>
*
*/
/*
* See http://www.asterisk.org for more information about
* the Asterisk project. Please do not directly contact
* any of the maintainers of this project for assistance;
* the project provides a web site, mailing lists and IRC
* channels for your use.
*
* This program is free software, distributed under the terms of
* the GNU General Public License Version 2 as published by the
* Free Software Foundation. See the LICENSE file included with
* this program for more details.
*/
#include <errno.h>
#include <stdio.h>
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <asm/types.h>
#include <linux/hdlc.h>
#include <netinet/in.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
#include <linux/if.h>
#include <linux/sockios.h>
#include <dahdi/user.h>
#include "dahdi_tools_version.h"
#if GENERIC_HDLC_VERSION != 4
#error Generic HDLC layer version mismatch, please get correct sethdlc.c
#endif
#if !defined(IF_PROTO_HDLC_ETH) || !defined(IF_PROTO_FR_ETH_PVC)
#warning "No kernel support for Ethernet over Frame Relay / HDLC, skipping it"
#endif
static struct ifreq req; /* for ioctl */
static int argc;
static char **argv;
int sock;
static void error(const char *format, ...) __attribute__ ((noreturn, format(printf, 1, 2)));
static void error(const char *format, ...)
{
va_list args;
va_start(args, format);
fprintf(stderr, "%s: ", req.ifr_name);
vfprintf(stderr, format, args);
va_end(args);
exit(1);
}
typedef struct {
const char *name;
const unsigned int value;
} parsertab;
static int checkkey(const char* name)
{
if (argc < 1)
return -1; /* no enough parameters */
if (strcmp(name, argv[0]))
return -1;
argc--;
argv++;
return 0;
}
static int checktab(parsertab *tab, unsigned int *value)
{
int i;
if (argc < 1)
return -1; /* no enough parameters */
for (i = 0; tab[i].name; i++)
if (!strcmp(tab[i].name, argv[0])) {
argc--;
argv++;
*value = tab[i].value;
return 0;
}
return -1; /* Not found */
}
static const char* tabstr(unsigned int value, parsertab *tab,
const char* unknown)
{
int i;
for (i = 0; tab[i].name; i++)
if (tab[i].value == value)
return tab[i].name;
return unknown; /* Not found */
}
static unsigned int match(const char* name, unsigned int *value,
unsigned int minimum, unsigned int maximum)
{
char test;
if (argc < 1)
return -1; /* no enough parameters */
if (name) {
if (strcmp(name, argv[0]))
return -1;
argc--;
argv++;
}
if (argc < 1)
error("Missing parameter\n");
if (sscanf(argv[0], "%u%c", value, &test) != 1)
error("Invalid parameter: %s\n", argv[0]);
if ((*value > maximum) || (*value < minimum))
error("Parameter out of range [%u - %u]: %u\n",
minimum, maximum, *value);
argc--;
argv++;
return 0;
}
static parsertab ifaces[] = {{ "v35", IF_IFACE_V35 },
{ "v24", IF_IFACE_V24 },
{ "x21", IF_IFACE_X21 },
{ "e1", IF_IFACE_E1 },
{ "t1", IF_IFACE_T1 },
{ NULL, 0 }};
static parsertab clocks[] = {{ "int", CLOCK_INT },
{ "ext", CLOCK_EXT },
{ "txint", CLOCK_TXINT },
{ "txfromrx", CLOCK_TXFROMRX },
{ NULL, 0 }};
static parsertab protos[] = {{ "hdlc", IF_PROTO_HDLC},
{ "cisco", IF_PROTO_CISCO},
{ "fr", IF_PROTO_FR},
{ "ppp", IF_PROTO_PPP},
{ "x25", IF_PROTO_X25},
#ifdef IF_PROTO_HDLC_ETH
{ "hdlc-eth", IF_PROTO_HDLC_ETH},
#endif
{ NULL, 0 }};
static parsertab hdlc_enc[] = {{ "nrz", ENCODING_NRZ },
{ "nrzi", ENCODING_NRZI },
{ "fm-mark", ENCODING_FM_MARK },
{ "fm-space", ENCODING_FM_SPACE },
{ "manchester", ENCODING_MANCHESTER },
{ NULL, 0 }};
static parsertab hdlc_par[] = {{ "no-parity", PARITY_NONE },
{ "crc16", PARITY_CRC16_PR1 },
{ "crc16-pr0", PARITY_CRC16_PR0 },
{ "crc16-itu", PARITY_CRC16_PR1_CCITT },
{ "crc16-itu-pr0", PARITY_CRC16_PR0_CCITT },
{ "crc32-itu", PARITY_CRC32_PR1_CCITT },
{ NULL, 0 }};
static parsertab lmi[] = {{ "none", LMI_NONE },
{ "ansi", LMI_ANSI },
{ "ccitt", LMI_CCITT },
{ NULL, 0 }};
static void set_iface(void)
{
int orig_argc = argc;
te1_settings te1;
memset(&te1, 0, sizeof(te1));
req.ifr_settings.type = IF_IFACE_SYNC_SERIAL;
while (argc > 0) {
if (req.ifr_settings.type == IF_IFACE_SYNC_SERIAL)
if (!checktab(ifaces, &req.ifr_settings.type))
continue;
if (!te1.clock_type)
if (!checkkey("clock")) {
if (!checktab(clocks, &te1.clock_type))
continue;
error("Invalid clock type\n");
}
if (!te1.clock_rate &&
(te1.clock_type == CLOCK_INT ||
te1.clock_type == CLOCK_TXINT))
if (!match("rate", &te1.clock_rate, 1, 0xFFFFFFFF))
continue;
if (!te1.loopback) {
if (!checkkey("loopback") ||
!checkkey("lb")) {
te1.loopback = 1;
continue;
}
}
/* slotmap goes here */
if (orig_argc == argc)
return; /* not an iface definition */
error("Invalid parameter: %s\n", argv[0]);
}
if (!te1.clock_rate &&
(te1.clock_type == CLOCK_INT ||
te1.clock_type == CLOCK_TXINT))
te1.clock_rate = 64000;
/* FIXME stupid hack, will remove it later */
req.ifr_settings.ifs_ifsu.te1 = &te1;
if (req.ifr_settings.type == IF_IFACE_E1 ||
req.ifr_settings.type == IF_IFACE_T1)
req.ifr_settings.size = sizeof(te1_settings);
else
req.ifr_settings.size = sizeof(sync_serial_settings);
if (ioctl(sock, SIOCWANDEV, &req))
error("Unable to set interface information: %s\n",
strerror(errno));
exit(0);
}
static void set_proto_fr(void)
{
unsigned int lmi_type = 0;
fr_proto fr;
memset(&fr, 0, sizeof(fr));
while (argc > 0) {
if (!lmi_type)
if (!checkkey("lmi")) {
if (!checktab(lmi, &lmi_type))
continue;
error("Invalid LMI type: %s\n",
argv[0]);
}
if (lmi_type && lmi_type != LMI_NONE) {
if (!fr.dce)
if (!checkkey("dce")) {
fr.dce = 1;
continue;
}
if (!fr.t391)
if (!match("t391", &fr.t391,
1, 1000))
continue;
if (!fr.t392)
if (!match("t392", &fr.t392,
1, 1000))
continue;
if (!fr.n391)
if (!match("n391", &fr.n391,
1, 1000))
continue;
if (!fr.n392)
if (!match("n392", &fr.n392,
1, 1000))
continue;
if (!fr.n393)
if (!match("n393", &fr.n393,
1, 1000))
continue;
}
error("Invalid parameter: %s\n", argv[0]);
}
/* polling verification timer*/
if (!fr.t391) fr.t391 = 10;
/* link integrity verification polling timer */
if (!fr.t392) fr.t392 = 15;
/* full status polling counter*/
if (!fr.n391) fr.n391 = 6;
/* error threshold */
if (!fr.n392) fr.n392 = 3;
/* monitored events count */
if (!fr.n393) fr.n393 = 4;
if (!lmi_type)
fr.lmi = LMI_DEFAULT;
else
fr.lmi = lmi_type;
req.ifr_settings.ifs_ifsu.fr = &fr;
req.ifr_settings.size = sizeof(fr);
if (ioctl(sock, SIOCWANDEV, &req))
error("Unable to set FR protocol information: %s\n",
strerror(errno));
}
static void set_proto_hdlc(int eth)
{
unsigned int enc = 0, par = 0;
raw_hdlc_proto raw;
memset(&raw, 0, sizeof(raw));
while (argc > 0) {
if (!enc)
if (!checktab(hdlc_enc, &enc))
continue;
if (!par)
if (!checktab(hdlc_par, &par))
continue;
error("Invalid parameter: %s\n", argv[0]);
}
if (!enc)
raw.encoding = ENCODING_DEFAULT;
else
raw.encoding = enc;
if (!par)
raw.parity = ENCODING_DEFAULT;
else
raw.parity = par;
req.ifr_settings.ifs_ifsu.raw_hdlc = &raw;
req.ifr_settings.size = sizeof(raw);
if (ioctl(sock, SIOCWANDEV, &req))
error("Unable to set HDLC%s protocol information: %s\n",
eth ? "-ETH" : "", strerror(errno));
}
static void set_proto_cisco(void)
{
cisco_proto cisco;
memset(&cisco, 0, sizeof(cisco));
while (argc > 0) {
if (!cisco.interval)
if (!match("interval", &cisco.interval,
1, 100))
continue;
if (!cisco.timeout)
if (!match("timeout", &cisco.timeout,
1, 100))
continue;
error("Invalid parameter: %s\n",
argv[0]);
}
if (!cisco.interval)
cisco.interval = 10;
if (!cisco.timeout)
cisco.timeout = 25;
req.ifr_settings.ifs_ifsu.cisco = &cisco;
req.ifr_settings.size = sizeof(cisco);
if (ioctl(sock, SIOCWANDEV, &req))
error("Unable to set Cisco HDLC protocol information: %s\n",
strerror(errno));
}
static void set_proto(void)
{
if (checktab(protos, &req.ifr_settings.type))
return;
switch(req.ifr_settings.type) {
case IF_PROTO_HDLC: set_proto_hdlc(0); break;
#ifdef IF_PROTO_HDLC_ETH
case IF_PROTO_HDLC_ETH: set_proto_hdlc(1); break;
#endif
case IF_PROTO_CISCO: set_proto_cisco(); break;
case IF_PROTO_FR: set_proto_fr(); break;
case IF_PROTO_PPP:
case IF_PROTO_X25:
req.ifr_settings.ifs_ifsu.sync = NULL; /* FIXME */
req.ifr_settings.size = 0;
if (!ioctl(sock, SIOCWANDEV, &req))
break;
error("Unable to set %s protocol information: %s\n",
req.ifr_settings.type == IF_PROTO_PPP
? "PPP" : "X.25", strerror(errno));
default: error("Unknown protocol %u\n", req.ifr_settings.type);
}
if (argc > 0)
error("Unexpected parameter: %s\n", argv[0]);
close(sock);
exit(0);
}
static void set_pvc(void)
{
char *op = argv[0];
parsertab ops[] = {{ "create", IF_PROTO_FR_ADD_PVC },
{ "delete", IF_PROTO_FR_DEL_PVC },
{ NULL, 0 }};
fr_proto_pvc pvc;
memset(&pvc, 0, sizeof(pvc));
if (checktab(ops, &req.ifr_settings.type))
return;
#ifdef IF_PROTO_FR_ETH_PVC
if (!match("ether", &pvc.dlci, 0, 1023)) {
if (req.ifr_settings.type == IF_PROTO_FR_ADD_PVC)
req.ifr_settings.type = IF_PROTO_FR_ADD_ETH_PVC;
else
req.ifr_settings.type = IF_PROTO_FR_DEL_ETH_PVC;
} else
#endif
if (match(NULL, &pvc.dlci, 0, 1023))
return;
if (argc != 0)
return;
req.ifr_settings.ifs_ifsu.fr_pvc = &pvc;
req.ifr_settings.size = sizeof(pvc);
if (ioctl(sock, SIOCWANDEV, &req))
error("Unable to %s PVC: %s\n", op, strerror(errno));
exit(0);
}
static void private(void)
{
if (argc < 1)
return;
if (!strcmp(argv[0], "private")) {
if (argc != 1)
return;
if (ioctl(sock, SIOCDEVPRIVATE, &req))
error("SIOCDEVPRIVATE: %s\n", strerror(errno));
exit(0);
}
}
static void show_port(void)
{
const char *s;
char buffer[128];
const te1_settings *te1 = (void*)buffer;
const raw_hdlc_proto *raw = (void*)buffer;
const cisco_proto *cisco = (void*)buffer;
const fr_proto *fr = (void*)buffer;
#ifdef IF_PROTO_FR_PVC
const fr_proto_pvc_info *pvc = (void*)buffer;
#endif
req.ifr_settings.ifs_ifsu.sync = (void*)buffer; /* FIXME */
printf("%s: ", req.ifr_name);
req.ifr_settings.size = sizeof(buffer);
req.ifr_settings.type = IF_GET_IFACE;
if (ioctl(sock, SIOCWANDEV, &req))
if (errno != EINVAL) {
printf("unable to get interface information: %s\n",
strerror(errno));
close(sock);
exit(1);
}
/* Get and print physical interface settings */
if (req.ifr_settings.type == IF_IFACE_SYNC_SERIAL)
s = ""; /* Unspecified serial interface */
else
s = tabstr(req.ifr_settings.type, ifaces, NULL);
if (!s)
printf("unknown interface 0x%x\n", req.ifr_settings.type);
else {
if (*s)
printf("interface %s ", s);
printf("clock %s", tabstr(te1->clock_type, clocks,
"type unknown"));
if (te1->clock_type == CLOCK_INT ||
te1->clock_type == CLOCK_TXINT)
printf(" rate %u", te1->clock_rate);
if (te1->loopback)
printf(" loopback");
if (req.ifr_settings.type == IF_IFACE_E1 ||
req.ifr_settings.type == IF_IFACE_T1) {
unsigned int u;
printf(" slotmap ");
for (u = te1->slot_map; u != 0; u /= 2)
printf("%u", u % 2);
}
printf("\n");
}
/* Get and print protocol settings */
do {
printf("\t");
req.ifr_settings.size = sizeof(buffer);
req.ifr_settings.type = IF_GET_PROTO;
if (ioctl(sock, SIOCWANDEV, &req)) {
if (errno == EINVAL)
printf("no protocol set\n");
else
printf("unable to get protocol information: "
"%s\n", strerror(errno));
break;
}
switch(req.ifr_settings.type) {
case IF_PROTO_FR:
printf("protocol fr lmi %s",
tabstr(fr->lmi, lmi, "unknown"));
if (fr->lmi == LMI_ANSI ||
fr->lmi == LMI_CCITT)
printf("%s t391 %u t392 %u n391 %u n392 %u "
"n393 %u\n",
fr->dce ? " dce" : "",
fr->t391,
fr->t392,
fr->n391,
fr->n392,
fr->n393);
else
putchar('\n');
break;
#ifdef IF_PROTO_FR_PVC
case IF_PROTO_FR_PVC:
printf("Frame-Relay PVC: DLCI %u, master device %s\n",
pvc->dlci, pvc->master);
break;
#endif
#ifdef IF_PROTO_FR_ETH_PVC
case IF_PROTO_FR_ETH_PVC:
printf("Frame-Relay PVC (Ethernet emulation): DLCI %u,"
" master device %s\n", pvc->dlci, pvc->master);
break;
#endif
case IF_PROTO_HDLC:
printf("protocol hdlc %s %s\n",
tabstr(raw->encoding, hdlc_enc, "unknown"),
tabstr(raw->parity, hdlc_par, "unknown"));
break;
#ifdef IF_PROTO_HDLC_ETH
case IF_PROTO_HDLC_ETH:
printf("protocol hdlc-eth %s %s\n",
tabstr(raw->encoding, hdlc_enc, "unknown"),
tabstr(raw->parity, hdlc_par, "unknown"));
break;
#endif
case IF_PROTO_CISCO:
printf("protocol cisco interval %u timeout %u\n",
cisco->interval,
cisco->timeout);
break;
case IF_PROTO_PPP:
printf("protocol ppp\n");
break;
case IF_PROTO_X25:
printf("protocol x25\n");
break;
default:
printf("unknown protocol %u\n", req.ifr_settings.type);
}
}while(0);
close(sock);
exit(0);
}
static void usage(void)
{
fprintf(stderr, "sethdlc version 1.15\n"
"Copyright (C) 2000 - 2003 Krzysztof Halasa <khc@pm.waw.pl>\n"
"\n"
"Usage: sethdlc INTERFACE [PHYSICAL] [clock CLOCK] [LOOPBACK] "
"[slotmap SLOTMAP]\n"
" sethdlc INTERFACE [PROTOCOL]\n"
" sethdlc INTERFACE create | delete"
#ifdef IF_PROTO_FR_ETH_PVC
" [ether]"
#endif
" DLCI\n"
" sethdlc INTERFACE private...\n"
"\n"
"PHYSICAL := v24 | v35 | x21 | e1 | t1\n"
"CLOCK := int [rate RATE] | ext | txint [rate RATE] | txfromrx\n"
"LOOPBACK := loopback | lb\n"
"\n"
"PROTOCOL := hdlc [ENCODING] [PARITY] |\n"
#ifdef IF_PROTO_HDLC_ETH
" hdlc-eth [ENCODING] [PARITY] |\n"
#endif
" cisco [interval val] [timeout val] |\n"
" fr [lmi LMI] |\n"
" ppp |\n"
" x25\n"
"\n"
"ENCODING := nrz | nrzi | fm-mark | fm-space | manchester\n"
"PARITY := no-parity | crc16 | crc16-pr0 | crc16-itu | crc16-itu-pr0 | crc32-itu\n"
"LMI := none | ansi [LMI_SPEC] | ccitt [LMI_SPEC]\n"
"LMI_SPEC := [dce] [t391 val] [t392 val] [n391 val] [n392 val] [n393 val]\n");
exit(0);
}
int main(int arg_c, char *arg_v[])
{
argc = arg_c;
argv = arg_v;
if (argc <= 1)
usage();
sock = socket(PF_INET, SOCK_DGRAM, IPPROTO_IP);
if (sock < 0)
error("Unable to create socket: %s\n", strerror(errno));
dahdi_copy_string(req.ifr_name, argv[1], sizeof(req.ifr_name)); /* Device name */
if (argc == 2)
show_port();
argc -= 2;
argv += 2;
set_iface();
set_proto();
set_pvc();
private();
close(sock);
usage();
exit(0);
}
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