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freebsd/lib/libatm/atm_addr.c

328 lines
6.7 KiB
C
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/*
*
* ===================================
* HARP | Host ATM Research Platform
* ===================================
*
*
* This Host ATM Research Platform ("HARP") file (the "Software") is
* made available by Network Computing Services, Inc. ("NetworkCS")
* "AS IS". NetworkCS does not provide maintenance, improvements or
* support of any kind.
*
* NETWORKCS MAKES NO WARRANTIES OR REPRESENTATIONS, EXPRESS OR IMPLIED,
* INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS FOR A PARTICULAR PURPOSE, AS TO ANY ELEMENT OF THE
* SOFTWARE OR ANY SUPPORT PROVIDED IN CONNECTION WITH THIS SOFTWARE.
* In no event shall NetworkCS be responsible for any damages, including
* but not limited to consequential damages, arising from or relating to
* any use of the Software or related support.
*
* Copyright 1994-1998 Network Computing Services, Inc.
*
* Copies of this Software may be made, however, the above copyright
* notice must be reproduced on all copies.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#ifndef lint
#if 0 /* original (broken) import id */
static char *RCSid = "@(#) $Id: atm_addr.c,v 1.1 1998/07/09 21:45:18 johnc Exp $";
#endif
#endif
/*
* User Space Library Functions
* ----------------------------
*
* ATM address utility functions
*
*/
#include <sys/types.h>
#include <sys/param.h>
#include <sys/socket.h>
#include <net/if.h>
#include <netinet/in.h>
#include <netatm/port.h>
#include <netatm/atm.h>
#include <netatm/atm_if.h>
#include <netatm/atm_sap.h>
#include <netatm/atm_sys.h>
#include <netatm/atm_ioctl.h>
#include <stdio.h>
#include <string.h>
#include "libatm.h"
extern char *prog;
/*
* Get NSAP, NSAP prefix or MAC address
*
* Arguments:
* in pointer to an address in ASCII
* out pointer to a buffer for the converted address
* len the length of the output buffer
*
* Returns:
* 0 error in format
* len the length of the data in the output buffer
*
*/
int
get_hex_atm_addr(in, out, len)
char *in;
u_char *out;
int len;
{
int c_type, c_value, i, out_len, state, val = 0;
/*
* Character table
*/
static struct {
char c;
int type;
int value;
} char_table[] = {
{'.', 0, 0}, /* Type 0 -- period */
{':', 0, 0}, /* Type 0 -- colon */
{'0', 1, 0}, /* Type 1 -- hex digit */
{'1', 1, 1},
{'2', 1, 2},
{'3', 1, 3},
{'4', 1, 4},
{'5', 1, 5},
{'6', 1, 6},
{'7', 1, 7},
{'8', 1, 8},
{'9', 1, 9},
{'a', 1, 10},
{'b', 1, 11},
{'c', 1, 12},
{'d', 1, 13},
{'e', 1, 14},
{'f', 1, 15},
{'A', 1, 10},
{'B', 1, 11},
{'C', 1, 12},
{'D', 1, 13},
{'E', 1, 14},
{'F', 1, 15},
{'\0', 2, 0}, /* Type 2 -- end of input */
};
/*
* State table
*/
static struct {
int action;
int state;
} state_table[3][3] = {
/* Period Hex End */
{ { 0, 0 }, { 1, 1 }, { 2, 0} }, /* Init */
{ { 4, 0 }, { 3, 2 }, { 4, 0} }, /* C1 */
{ { 0, 2 }, { 1, 1 }, { 2, 0} }, /* C2 */
};
/*
* Initialize
*/
state = 0;
out_len = 0;
if (!strncasecmp(in, "0x", 2)) {
in += 2;
}
/*
* Loop through input until state table says to return
*/
while (1) {
/*
* Get the character type and value
*/
for (i=0; char_table[i].c; i++)
if (char_table[i].c == *in)
break;
if (char_table[i].c != *in)
return(0);
c_type = char_table[i].type;
c_value = char_table[i].value;
/*
* Process next character based on state and type
*/
switch(state_table[state][c_type].action) {
case 0:
/*
* Ignore the character
*/
break;
case 1:
/*
* Save the character's value
*/
val = c_value;
break;
case 2:
/*
* Return the assembled NSAP
*/
return(out_len);
case 3:
/*
* Assemble and save the output byte
*/
val = val << 4;
val += c_value;
out[out_len] = (u_char) val;
out_len++;
break;
case 4:
/*
* Invalid input sequence
*/
return(0);
default:
return(0);
}
/*
* Set the next state and go on to the next character
*/
state = state_table[state][c_type].state;
in++;
}
}
/*
* Format an ATM address into a string
*
* Arguments:
* addr pointer to an atm address
*
* Returns:
* none
*
*/
char *
format_atm_addr(addr)
Atm_addr *addr;
{
int i;
char *nsap_format;
Atm_addr_nsap *atm_nsap;
Atm_addr_e164 *atm_e164;
Atm_addr_spans *atm_spans;
Atm_addr_pvc *atm_pvc;
static char str[256];
union {
int w;
char c[4];
} u1, u2;
static char nsap_format_DCC[] = "0x%02x.%02x%02x.%02x.%02x%02x%02x.%02x%02x.%02x%02x.%02x%02x.%02x%02x%02x%02x%02x%02x.%02x";
static char nsap_format_ICD[] = "0x%02x.%02x%02x.%02x.%02x%02x%02x.%02x%02x.%02x%02x.%02x%02x.%02x%02x%02x%02x%02x%02x.%02x";
static char nsap_format_E164[] = "0x%02x.%02x%02x%02x%02x%02x%02x%02x%02x.%02x%02x.%02x%02x.%02x%02x%02x%02x%02x%02x.%02x";
/*
* Clear the returned string
*/
bzero(str, sizeof(str));
strcpy(str, "-");
/*
* Print format is determined by address type
*/
switch (addr->address_format) {
case T_ATM_ENDSYS_ADDR:
atm_nsap = (Atm_addr_nsap *)addr->address;
switch(atm_nsap->aan_afi) {
default:
case AFI_DCC:
nsap_format = nsap_format_DCC;
break;
case AFI_ICD:
nsap_format = nsap_format_ICD;
break;
case AFI_E164:
nsap_format = nsap_format_E164;
break;
}
sprintf(str, nsap_format,
atm_nsap->aan_afi,
atm_nsap->aan_afspec[0],
atm_nsap->aan_afspec[1],
atm_nsap->aan_afspec[2],
atm_nsap->aan_afspec[3],
atm_nsap->aan_afspec[4],
atm_nsap->aan_afspec[5],
atm_nsap->aan_afspec[6],
atm_nsap->aan_afspec[7],
atm_nsap->aan_afspec[8],
atm_nsap->aan_afspec[9],
atm_nsap->aan_afspec[10],
atm_nsap->aan_afspec[11],
atm_nsap->aan_esi[0],
atm_nsap->aan_esi[1],
atm_nsap->aan_esi[2],
atm_nsap->aan_esi[3],
atm_nsap->aan_esi[4],
atm_nsap->aan_esi[5],
atm_nsap->aan_sel);
break;
case T_ATM_E164_ADDR:
atm_e164 = (Atm_addr_e164 *)addr->address;
for(i=0; i<addr->address_length; i++) {
sprintf(&str[strlen(str)], "%c",
atm_e164->aae_addr[i]);
}
break;
case T_ATM_SPANS_ADDR:
/*
* Print SPANS address as two words, xxxx.yyyy
*/
atm_spans = (Atm_addr_spans *)addr->address;
u1.c[0] = atm_spans->aas_addr[0];
u1.c[1] = atm_spans->aas_addr[1];
u1.c[2] = atm_spans->aas_addr[2];
u1.c[3] = atm_spans->aas_addr[3];
u2.c[0] = atm_spans->aas_addr[4];
u2.c[1] = atm_spans->aas_addr[5];
u2.c[2] = atm_spans->aas_addr[6];
u2.c[3] = atm_spans->aas_addr[7];
if (!(u1.w == 0 && u2.w == 0))
sprintf(str, "0x%08lx.%08lx", ntohl(u1.w), ntohl(u2.w));
break;
case T_ATM_PVC_ADDR:
/*
* Print PVC as VPI, VCI
*/
atm_pvc = (Atm_addr_pvc *)addr->address;
sprintf(str, "%d, %d",
ATM_PVC_GET_VPI(atm_pvc),
ATM_PVC_GET_VCI(atm_pvc));
break;
case T_ATM_ABSENT:
default:
break;
}
return(str);
}
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