/* $Id: capiutil.c,v 1.13.6.4 2001/09/23 22:24:33 kai Exp $
*
* CAPI 2.0 convert capi message to capi message struct
*
* From CAPI 2.0 Development Kit AVM 1995 (msg.c)
* Rewritten for Linux 1996 by Carsten Paeth <[email protected]>
*
* This software may be used and distributed according to the terms
* of the GNU General Public License, incorporated herein by reference.
*
*/
#include <linux/module.h>
#include <linux/string.h>
#include <linux/ctype.h>
#include <linux/stddef.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/init.h>
#include <linux/isdn/capiutil.h>
#include <linux/slab.h>
#include "kcapi.h"
/* from CAPI2.0 DDK AVM Berlin GmbH */
typedef struct {
int typ;
size_t off;
} _cdef;
#define _CBYTE 1
#define _CWORD 2
#define _CDWORD 3
#define _CSTRUCT 4
#define _CMSTRUCT 5
#define _CEND 6
static _cdef cdef[] =
{
/*00 */
{_CEND},
/*01 */
{_CEND},
/*02 */
{_CEND},
/*03 */
{_CDWORD, offsetof(_cmsg, adr.adrController)},
/*04 */
{_CMSTRUCT, offsetof(_cmsg, AdditionalInfo)},
/*05 */
{_CSTRUCT, offsetof(_cmsg, B1configuration)},
/*06 */
{_CWORD, offsetof(_cmsg, B1protocol)},
/*07 */
{_CSTRUCT, offsetof(_cmsg, B2configuration)},
/*08 */
{_CWORD, offsetof(_cmsg, B2protocol)},
/*09 */
{_CSTRUCT, offsetof(_cmsg, B3configuration)},
/*0a */
{_CWORD, offsetof(_cmsg, B3protocol)},
/*0b */
{_CSTRUCT, offsetof(_cmsg, BC)},
/*0c */
{_CSTRUCT, offsetof(_cmsg, BChannelinformation)},
/*0d */
{_CMSTRUCT, offsetof(_cmsg, BProtocol)},
/*0e */
{_CSTRUCT, offsetof(_cmsg, CalledPartyNumber)},
/*0f */
{_CSTRUCT, offsetof(_cmsg, CalledPartySubaddress)},
/*10 */
{_CSTRUCT, offsetof(_cmsg, CallingPartyNumber)},
/*11 */
{_CSTRUCT, offsetof(_cmsg, CallingPartySubaddress)},
/*12 */
{_CDWORD, offsetof(_cmsg, CIPmask)},
/*13 */
{_CDWORD, offsetof(_cmsg, CIPmask2)},
/*14 */
{_CWORD, offsetof(_cmsg, CIPValue)},
/*15 */
{_CDWORD, offsetof(_cmsg, Class)},
/*16 */
{_CSTRUCT, offsetof(_cmsg, ConnectedNumber)},
/*17 */
{_CSTRUCT, offsetof(_cmsg, ConnectedSubaddress)},
/*18 */
{_CDWORD, offsetof(_cmsg, Data)},
/*19 */
{_CWORD, offsetof(_cmsg, DataHandle)},
/*1a */
{_CWORD, offsetof(_cmsg, DataLength)},
/*1b */
{_CSTRUCT, offsetof(_cmsg, FacilityConfirmationParameter)},
/*1c */
{_CSTRUCT, offsetof(_cmsg, Facilitydataarray)},
/*1d */
{_CSTRUCT, offsetof(_cmsg, FacilityIndicationParameter)},
/*1e */
{_CSTRUCT, offsetof(_cmsg, FacilityRequestParameter)},
/*1f */
{_CWORD, offsetof(_cmsg, FacilitySelector)},
/*20 */
{_CWORD, offsetof(_cmsg, Flags)},
/*21 */
{_CDWORD, offsetof(_cmsg, Function)},
/*22 */
{_CSTRUCT, offsetof(_cmsg, HLC)},
/*23 */
{_CWORD, offsetof(_cmsg, Info)},
/*24 */
{_CSTRUCT, offsetof(_cmsg, InfoElement)},
/*25 */
{_CDWORD, offsetof(_cmsg, InfoMask)},
/*26 */
{_CWORD, offsetof(_cmsg, InfoNumber)},
/*27 */
{_CSTRUCT, offsetof(_cmsg, Keypadfacility)},
/*28 */
{_CSTRUCT, offsetof(_cmsg, LLC)},
/*29 */
{_CSTRUCT, offsetof(_cmsg, ManuData)},
/*2a */
{_CDWORD, offsetof(_cmsg, ManuID)},
/*2b */
{_CSTRUCT, offsetof(_cmsg, NCPI)},
/*2c */
{_CWORD, offsetof(_cmsg, Reason)},
/*2d */
{_CWORD, offsetof(_cmsg, Reason_B3)},
/*2e */
{_CWORD, offsetof(_cmsg, Reject)},
/*2f */
{_CSTRUCT, offsetof(_cmsg, Useruserdata)}
};
static unsigned char *cpars[] =
{
/* ALERT_REQ */ [0x01] = "\x03\x04\x0c\x27\x2f\x1c\x01\x01",
/* CONNECT_REQ */ [0x02] = "\x03\x14\x0e\x10\x0f\x11\x0d\x06\x08\x0a\x05\x07\x09\x01\x0b\x28\x22\x04\x0c\x27\x2f\x1c\x01\x01",
/* DISCONNECT_REQ */ [0x04] = "\x03\x04\x0c\x27\x2f\x1c\x01\x01",
/* LISTEN_REQ */ [0x05] = "\x03\x25\x12\x13\x10\x11\x01",
/* INFO_REQ */ [0x08] = "\x03\x0e\x04\x0c\x27\x2f\x1c\x01\x01",
/* FACILITY_REQ */ [0x09] = "\x03\x1f\x1e\x01",
/* SELECT_B_PROTOCOL_REQ */ [0x0a] = "\x03\x0d\x06\x08\x0a\x05\x07\x09\x01\x01",
/* CONNECT_B3_REQ */ [0x0b] = "\x03\x2b\x01",
/* DISCONNECT_B3_REQ */ [0x0d] = "\x03\x2b\x01",
/* DATA_B3_REQ */ [0x0f] = "\x03\x18\x1a\x19\x20\x01",
/* RESET_B3_REQ */ [0x10] = "\x03\x2b\x01",
/* ALERT_CONF */ [0x13] = "\x03\x23\x01",
/* CONNECT_CONF */ [0x14] = "\x03\x23\x01",
/* DISCONNECT_CONF */ [0x16] = "\x03\x23\x01",
/* LISTEN_CONF */ [0x17] = "\x03\x23\x01",
/* MANUFACTURER_REQ */ [0x18] = "\x03\x2a\x15\x21\x29\x01",
/* INFO_CONF */ [0x1a] = "\x03\x23\x01",
/* FACILITY_CONF */ [0x1b] = "\x03\x23\x1f\x1b\x01",
/* SELECT_B_PROTOCOL_CONF */ [0x1c] = "\x03\x23\x01",
/* CONNECT_B3_CONF */ [0x1d] = "\x03\x23\x01",
/* DISCONNECT_B3_CONF */ [0x1f] = "\x03\x23\x01",
/* DATA_B3_CONF */ [0x21] = "\x03\x19\x23\x01",
/* RESET_B3_CONF */ [0x22] = "\x03\x23\x01",
/* CONNECT_IND */ [0x26] = "\x03\x14\x0e\x10\x0f\x11\x0b\x28\x22\x04\x0c\x27\x2f\x1c\x01\x01",
/* CONNECT_ACTIVE_IND */ [0x27] = "\x03\x16\x17\x28\x01",
/* DISCONNECT_IND */ [0x28] = "\x03\x2c\x01",
/* MANUFACTURER_CONF */ [0x2a] = "\x03\x2a\x15\x21\x29\x01",
/* INFO_IND */ [0x2c] = "\x03\x26\x24\x01",
/* FACILITY_IND */ [0x2d] = "\x03\x1f\x1d\x01",
/* CONNECT_B3_IND */ [0x2f] = "\x03\x2b\x01",
/* CONNECT_B3_ACTIVE_IND */ [0x30] = "\x03\x2b\x01",
/* DISCONNECT_B3_IND */ [0x31] = "\x03\x2d\x2b\x01",
/* DATA_B3_IND */ [0x33] = "\x03\x18\x1a\x19\x20\x01",
/* RESET_B3_IND */ [0x34] = "\x03\x2b\x01",
/* CONNECT_B3_T90_ACTIVE_IND */ [0x35] = "\x03\x2b\x01",
/* CONNECT_RESP */ [0x38] = "\x03\x2e\x0d\x06\x08\x0a\x05\x07\x09\x01\x16\x17\x28\x04\x0c\x27\x2f\x1c\x01\x01",
/* CONNECT_ACTIVE_RESP */ [0x39] = "\x03\x01",
/* DISCONNECT_RESP */ [0x3a] = "\x03\x01",
/* MANUFACTURER_IND */ [0x3c] = "\x03\x2a\x15\x21\x29\x01",
/* INFO_RESP */ [0x3e] = "\x03\x01",
/* FACILITY_RESP */ [0x3f] = "\x03\x1f\x01",
/* CONNECT_B3_RESP */ [0x41] = "\x03\x2e\x2b\x01",
/* CONNECT_B3_ACTIVE_RESP */ [0x42] = "\x03\x01",
/* DISCONNECT_B3_RESP */ [0x43] = "\x03\x01",
/* DATA_B3_RESP */ [0x45] = "\x03\x19\x01",
/* RESET_B3_RESP */ [0x46] = "\x03\x01",
/* CONNECT_B3_T90_ACTIVE_RESP */ [0x47] = "\x03\x01",
/* MANUFACTURER_RESP */ [0x4e] = "\x03\x2a\x15\x21\x29\x01",
};
/*-------------------------------------------------------*/
#define byteTLcpy(x, y) *(u8 *)(x) = *(u8 *)(y);
#define wordTLcpy(x, y) *(u16 *)(x) = *(u16 *)(y);
#define dwordTLcpy(x, y) memcpy(x, y, 4);
#define structTLcpy(x, y, l) memcpy(x, y, l)
#define structTLcpyovl(x, y, l) memmove(x, y, l)
#define byteTRcpy(x, y) *(u8 *)(y) = *(u8 *)(x);
#define wordTRcpy(x, y) *(u16 *)(y) = *(u16 *)(x);
#define dwordTRcpy(x, y) memcpy(y, x, 4);
#define structTRcpy(x, y, l) memcpy(y, x, l)
#define structTRcpyovl(x, y, l) memmove(y, x, l)
/*-------------------------------------------------------*/
static unsigned command_2_index(u8 c, u8 sc)
{
if (c & 0x80)
c = 0x9 + (c & 0x0f);
else if (c == 0x41)
c = 0x9 + 0x1;
if (c > 0x18)
c = 0x00;
return (sc & 3) * (0x9 + 0x9) + c;
}
/**
* capi_cmd2par() - find parameter string for CAPI 2.0 command/subcommand
* @cmd: command number
* @subcmd: subcommand number
*
* Return value: static string, NULL if command/subcommand unknown
*/
static unsigned char *capi_cmd2par(u8 cmd, u8 subcmd)
{
return cpars[command_2_index(cmd, subcmd)];
}
/*-------------------------------------------------------*/
#define TYP (cdef[cmsg->par[cmsg->p]].typ)
#define OFF (((u8 *)cmsg) + cdef[cmsg->par[cmsg->p]].off)
static void jumpcstruct(_cmsg *cmsg)
{
unsigned layer;
for (cmsg->p++, layer = 1; layer;) {
/* $$$$$ assert (cmsg->p); */
cmsg->p++;
switch (TYP) {
case _CMSTRUCT:
layer++;
break;
case _CEND:
layer--;
break;
}
}
}
/*-------------------------------------------------------*/
static char *mnames[] =
{
[0x01] = "ALERT_REQ",
[0x02] = "CONNECT_REQ",
[0x04] = "DISCONNECT_REQ",
[0x05] = "LISTEN_REQ",
[0x08] = "INFO_REQ",
[0x09] = "FACILITY_REQ",
[0x0a] = "SELECT_B_PROTOCOL_REQ",
[0x0b] = "CONNECT_B3_REQ",
[0x0d] = "DISCONNECT_B3_REQ",
[0x0f] = "DATA_B3_REQ",
[0x10] = "RESET_B3_REQ",
[0x13] = "ALERT_CONF",
[0x14] = "CONNECT_CONF",
[0x16] = "DISCONNECT_CONF",
[0x17] = "LISTEN_CONF",
[0x18] = "MANUFACTURER_REQ",
[0x1a] = "INFO_CONF",
[0x1b] = "FACILITY_CONF",
[0x1c] = "SELECT_B_PROTOCOL_CONF",
[0x1d] = "CONNECT_B3_CONF",
[0x1f] = "DISCONNECT_B3_CONF",
[0x21] = "DATA_B3_CONF",
[0x22] = "RESET_B3_CONF",
[0x26] = "CONNECT_IND",
[0x27] = "CONNECT_ACTIVE_IND",
[0x28] = "DISCONNECT_IND",
[0x2a] = "MANUFACTURER_CONF",
[0x2c] = "INFO_IND",
[0x2d] = "FACILITY_IND",
[0x2f] = "CONNECT_B3_IND",
[0x30] = "CONNECT_B3_ACTIVE_IND",
[0x31] = "DISCONNECT_B3_IND",
[0x33] = "DATA_B3_IND",
[0x34] = "RESET_B3_IND",
[0x35] = "CONNECT_B3_T90_ACTIVE_IND",
[0x38] = "CONNECT_RESP",
[0x39] = "CONNECT_ACTIVE_RESP",
[0x3a] = "DISCONNECT_RESP",
[0x3c] = "MANUFACTURER_IND",
[0x3e] = "INFO_RESP",
[0x3f] = "FACILITY_RESP",
[0x41] = "CONNECT_B3_RESP",
[0x42] = "CONNECT_B3_ACTIVE_RESP",
[0x43] = "DISCONNECT_B3_RESP",
[0x45] = "DATA_B3_RESP",
[0x46] = "RESET_B3_RESP",
[0x47] = "CONNECT_B3_T90_ACTIVE_RESP",
[0x4e] = "MANUFACTURER_RESP"
};
/**
* capi_cmd2str() - convert CAPI 2.0 command/subcommand number to name
* @cmd: command number
* @subcmd: subcommand number
*
* Return value: static string
*/
char *capi_cmd2str(u8 cmd, u8 subcmd)
{
char *result;
result = mnames[command_2_index(cmd, subcmd)];
if (result == NULL)
result = "INVALID_COMMAND";
return result;
}
/*-------------------------------------------------------*/
#ifdef CONFIG_CAPI_TRACE
/*-------------------------------------------------------*/
static char *pnames[] =
{
/*00 */ NULL,
/*01 */ NULL,
/*02 */ NULL,
/*03 */ "Controller/PLCI/NCCI",
/*04 */ "AdditionalInfo",
/*05 */ "B1configuration",
/*06 */ "B1protocol",
/*07 */ "B2configuration",
/*08 */ "B2protocol",
/*09 */ "B3configuration",
/*0a */ "B3protocol",
/*0b */ "BC",
/*0c */ "BChannelinformation",
/*0d */ "BProtocol",
/*0e */ "CalledPartyNumber",
/*0f */ "CalledPartySubaddress",
/*10 */ "CallingPartyNumber",
/*11 */ "CallingPartySubaddress",
/*12 */ "CIPmask",
/*13 */ "CIPmask2",
/*14 */ "CIPValue",
/*15 */ "Class",
/*16 */ "ConnectedNumber",
/*17 */ "ConnectedSubaddress",
/*18 */ "Data32",
/*19 */ "DataHandle",
/*1a */ "DataLength",
/*1b */ "FacilityConfirmationParameter",
/*1c */ "Facilitydataarray",
/*1d */ "FacilityIndicationParameter",
/*1e */ "FacilityRequestParameter",
/*1f */ "FacilitySelector",
/*20 */ "Flags",
/*21 */ "Function",
/*22 */ "HLC",
/*23 */ "Info",
/*24 */ "InfoElement",
/*25 */ "InfoMask",
/*26 */ "InfoNumber",
/*27 */ "Keypadfacility",
/*28 */ "LLC",
/*29 */ "ManuData",
/*2a */ "ManuID",
/*2b */ "NCPI",
/*2c */ "Reason",
/*2d */ "Reason_B3",
/*2e */ "Reject",
/*2f */ "Useruserdata"
};
#include <linux/stdarg.h>
/*-------------------------------------------------------*/
static _cdebbuf *bufprint(_cdebbuf *cdb, char *fmt, ...)
{
va_list f;
size_t n, r;
if (!cdb)
return NULL;
va_start(f, fmt);
r = cdb->size - cdb->pos;
n = vsnprintf(cdb->p, r, fmt, f);
va_end(f);
if (n >= r) {
/* truncated, need bigger buffer */
size_t ns = 2 * cdb->size;
u_char *nb;
while ((ns - cdb->pos) <= n)
ns *= 2;
nb = kmalloc(ns, GFP_ATOMIC);
if (!nb) {
cdebbuf_free(cdb);
return NULL;
}
memcpy(nb, cdb->buf, cdb->pos);
kfree(cdb->buf);
nb[cdb->pos] = 0;
cdb->buf = nb;
cdb->p = cdb->buf + cdb->pos;
cdb->size = ns;
va_start(f, fmt);
r = cdb->size - cdb->pos;
n = vsnprintf(cdb->p, r, fmt, f);
va_end(f);
}
cdb->p += n;
cdb->pos += n;
return cdb;
}
static _cdebbuf *printstructlen(_cdebbuf *cdb, u8 *m, unsigned len)
{
unsigned hex = 0;
if (!cdb)
return NULL;
for (; len; len--, m++)
if (isalnum(*m) || *m == ' ') {
if (hex)
cdb = bufprint(cdb, ">");
cdb = bufprint(cdb, "%c", *m);
hex = 0;
} else {
if (!hex)
cdb = bufprint(cdb, "<%02x", *m);
else
cdb = bufprint(cdb, " %02x", *m);
hex = 1;
}
if (hex)
cdb = bufprint(cdb, ">");
return cdb;
}
static _cdebbuf *printstruct(_cdebbuf *cdb, u8 *m)
{
unsigned len;
if (m[0] != 0xff) {
len = m[0];
m += 1;
} else {
len = ((u16 *) (m + 1))[0];
m += 3;
}
cdb = printstructlen(cdb, m, len);
return cdb;
}
/*-------------------------------------------------------*/
#define NAME (pnames[cmsg->par[cmsg->p]])
static _cdebbuf *protocol_message_2_pars(_cdebbuf *cdb, _cmsg *cmsg, int level)
{
if (!cmsg->par)
return NULL; /* invalid command/subcommand */
for (; TYP != _CEND; cmsg->p++) {
int slen = 29 + 3 - level;
int i;
if (!cdb)
return NULL;
cdb = bufprint(cdb, " ");
for (i = 0; i < level - 1; i++)
cdb = bufprint(cdb, " ");
switch (TYP) {
case _CBYTE:
cdb = bufprint(cdb, "%-*s = 0x%x\n", slen, NAME, *(u8 *) (cmsg->m + cmsg->l));
cmsg->l++;
break;
case _CWORD:
cdb = bufprint(cdb, "%-*s = 0x%x\n", slen, NAME, *(u16 *) (cmsg->m + cmsg->l));
cmsg->l += 2;
break;
case _CDWORD:
cdb = bufprint(cdb, "%-*s = 0x%lx\n", slen, NAME, *(u32 *) (cmsg->m + cmsg->l));
cmsg->l += 4;
break;
case _CSTRUCT:
cdb = bufprint(cdb, "%-*s = ", slen, NAME);
if (cmsg->m[cmsg->l] == '\0')
cdb = bufprint(cdb, "default");
else
cdb = printstruct(cdb, cmsg->m + cmsg->l);
cdb = bufprint(cdb, "\n");
if (cmsg->m[cmsg->l] != 0xff)
cmsg->l += 1 + cmsg->m[cmsg->l];
else
cmsg->l += 3 + *(u16 *) (cmsg->m + cmsg->l + 1);
break;
case _CMSTRUCT:
/*----- Metastruktur 0 -----*/
if (cmsg->m[cmsg->l] == '\0') {
cdb = bufprint(cdb, "%-*s = default\n", slen, NAME);
cmsg->l++;
jumpcstruct(cmsg);
} else {
char *name = NAME;
unsigned _l = cmsg->l;
cdb = bufprint(cdb, "%-*s\n", slen, name);
cmsg->l = (cmsg->m + _l)[0] == 255 ? cmsg->l + 3 : cmsg->l + 1;
cmsg->p++;
cdb = protocol_message_2_pars(cdb, cmsg, level + 1);
}
break;
}
}
return cdb;
}
/*-------------------------------------------------------*/
static _cdebbuf *g_debbuf;
static u_long g_debbuf_lock;
static _cmsg *g_cmsg;
static _cdebbuf *cdebbuf_alloc(void)
{
_cdebbuf *cdb;
if (likely(!test_and_set_bit(1, &g_debbuf_lock))) {
cdb = g_debbuf;
goto init;
} else
cdb = kmalloc(sizeof(_cdebbuf), GFP_ATOMIC);
if (!cdb)
return NULL;
cdb->buf = kmalloc(CDEBUG_SIZE, GFP_ATOMIC);
if (!cdb->buf) {
kfree(cdb);
return NULL;
}
cdb->size = CDEBUG_SIZE;
init:
cdb->buf[0] = 0;
cdb->p = cdb->buf;
cdb->pos = 0;
return cdb;
}
/**
* cdebbuf_free() - free CAPI debug buffer
* @cdb: buffer to free
*/
void cdebbuf_free(_cdebbuf *cdb)
{
if (likely(cdb == g_debbuf)) {
test_and_clear_bit(1, &g_debbuf_lock);
return;
}
if (likely(cdb))
kfree(cdb->buf);
kfree(cdb);
}
/**
* capi_message2str() - format CAPI 2.0 message for printing
* @msg: CAPI 2.0 message
*
* Allocates a CAPI debug buffer and fills it with a printable representation
* of the CAPI 2.0 message in @msg.
* Return value: allocated debug buffer, NULL on error
* The returned buffer should be freed by a call to cdebbuf_free() after use.
*/
_cdebbuf *capi_message2str(u8 *msg)
{
_cdebbuf *cdb;
_cmsg *cmsg;
cdb = cdebbuf_alloc();
if (unlikely(!cdb))
return NULL;
if (likely(cdb == g_debbuf))
cmsg = g_cmsg;
else
cmsg = kmalloc(sizeof(_cmsg), GFP_ATOMIC);
if (unlikely(!cmsg)) {
cdebbuf_free(cdb);
return NULL;
}
cmsg->m = msg;
cmsg->l = 8;
cmsg->p = 0;
byteTRcpy(cmsg->m + 4, &cmsg->Command);
byteTRcpy(cmsg->m + 5, &cmsg->Subcommand);
cmsg->par = capi_cmd2par(cmsg->Command, cmsg->Subcommand);
cdb = bufprint(cdb, "%-26s ID=%03d #0x%04x LEN=%04d\n",
capi_cmd2str(cmsg->Command, cmsg->Subcommand),
((unsigned short *) msg)[1],
((unsigned short *) msg)[3],
((unsigned short *) msg)[0]);
cdb = protocol_message_2_pars(cdb, cmsg, 1);
if (unlikely(cmsg != g_cmsg))
kfree(cmsg);
return cdb;
}
int __init cdebug_init(void)
{
g_cmsg = kmalloc(sizeof(_cmsg), GFP_KERNEL);
if (!g_cmsg)
return -ENOMEM;
g_debbuf = kmalloc(sizeof(_cdebbuf), GFP_KERNEL);
if (!g_debbuf) {
kfree(g_cmsg);
return -ENOMEM;
}
g_debbuf->buf = kmalloc(CDEBUG_GSIZE, GFP_KERNEL);
if (!g_debbuf->buf) {
kfree(g_cmsg);
kfree(g_debbuf);
return -ENOMEM;
}
g_debbuf->size = CDEBUG_GSIZE;
g_debbuf->buf[0] = 0;
g_debbuf->p = g_debbuf->buf;
g_debbuf->pos = 0;
return 0;
}
void cdebug_exit(void)
{
if (g_debbuf)
kfree(g_debbuf->buf);
kfree(g_debbuf);
kfree(g_cmsg);
}
#else /* !CONFIG_CAPI_TRACE */
static _cdebbuf g_debbuf = {"CONFIG_CAPI_TRACE not enabled", NULL, 0, 0};
_cdebbuf *capi_message2str(u8 *msg)
{
return &g_debbuf;
}
_cdebbuf *capi_cmsg2str(_cmsg *cmsg)
{
return &g_debbuf;
}
void cdebbuf_free(_cdebbuf *cdb)
{
}
int __init cdebug_init(void)
{
return 0;
}
void cdebug_exit(void)
{
}
#endif
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