[PATCH] Fix buffer overflow and races in capi debug functions
The CAPI trace debug functions were using a fixed size buffer, which can be overflowed if wrong formatted CAPI messages were sent to the kernel capi layer. The code was also not protected against multiple callers. This fix bug 8028. Additionally the patch make the CAPI trace functions optional. Signed-off-by: Karsten Keil <kkeil@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Karsten Keil
Linus Torvalds
parent
34bbd70405
commit
17f0cd2f35
5 changed files with 318 additions and 78 deletions
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@ -2,13 +2,25 @@
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# Config.in for the CAPI subsystem
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#
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config ISDN_DRV_AVMB1_VERBOSE_REASON
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bool "Verbose reason code reporting (kernel size +=7K)"
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bool "Verbose reason code reporting"
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depends on ISDN_CAPI
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default y
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help
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If you say Y here, the AVM B1 driver will give verbose reasons for
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If you say Y here, the CAPI drivers will give verbose reasons for
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disconnecting. This will increase the size of the kernel by 7 KB. If
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unsure, say Y.
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config CAPI_TRACE
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bool "CAPI trace support"
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depends on ISDN_CAPI
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default y
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help
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If you say Y here, the kernelcapi driver can make verbose traces
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of CAPI messages. This feature can be enabled/disabled via IOCTL for
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every controler (default disabled).
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This will increase the size of the kernelcapi module by 20 KB.
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If unsure, say Y.
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config ISDN_CAPI_MIDDLEWARE
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bool "CAPI2.0 Middleware support (EXPERIMENTAL)"
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depends on ISDN_CAPI && EXPERIMENTAL
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@ -990,6 +990,7 @@ static void handle_plci(_cmsg * cmsg)
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capidrv_contr *card = findcontrbynumber(cmsg->adr.adrController & 0x7f);
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capidrv_plci *plcip;
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isdn_ctrl cmd;
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_cdebbuf *cdb;
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if (!card) {
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printk(KERN_ERR "capidrv: %s from unknown controller 0x%x\n",
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@ -1122,8 +1123,15 @@ static void handle_plci(_cmsg * cmsg)
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break;
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}
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}
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printk(KERN_ERR "capidrv-%d: %s\n",
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card->contrnr, capi_cmsg2str(cmsg));
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cdb = capi_cmsg2str(cmsg);
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if (cdb) {
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printk(KERN_WARNING "capidrv-%d: %s\n",
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card->contrnr, cdb->buf);
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cdebbuf_free(cdb);
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} else
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printk(KERN_WARNING "capidrv-%d: CAPI_INFO_IND InfoNumber %x not handled\n",
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card->contrnr, cmsg->InfoNumber);
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break;
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case CAPI_CONNECT_ACTIVE_CONF: /* plci */
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@ -1371,10 +1379,18 @@ static _cmsg s_cmsg;
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static void capidrv_recv_message(struct capi20_appl *ap, struct sk_buff *skb)
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{
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capi_message2cmsg(&s_cmsg, skb->data);
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if (debugmode > 3)
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printk(KERN_DEBUG "capidrv_signal: applid=%d %s\n",
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ap->applid, capi_cmsg2str(&s_cmsg));
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if (debugmode > 3) {
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_cdebbuf *cdb = capi_cmsg2str(&s_cmsg);
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if (cdb) {
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printk(KERN_DEBUG "%s: applid=%d %s\n", __FUNCTION__,
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ap->applid, cdb->buf);
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cdebbuf_free(cdb);
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} else
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printk(KERN_DEBUG "%s: applid=%d %s not traced\n",
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__FUNCTION__, ap->applid,
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capi_cmd2str(s_cmsg.Command, s_cmsg.Subcommand));
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}
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if (s_cmsg.Command == CAPI_DATA_B3
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&& s_cmsg.Subcommand == CAPI_IND) {
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handle_data(&s_cmsg, skb);
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@ -648,6 +648,9 @@ char *capi_cmd2str(u8 cmd, u8 subcmd)
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/*-------------------------------------------------------*/
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#ifdef CONFIG_CAPI_TRACE
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/*-------------------------------------------------------*/
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static char *pnames[] =
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@ -703,44 +706,77 @@ static char *pnames[] =
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};
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static char buf[8192];
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static char *p = NULL;
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#include <stdarg.h>
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/*-------------------------------------------------------*/
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static void bufprint(char *fmt,...)
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static _cdebbuf *bufprint(_cdebbuf *cdb, char *fmt,...)
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{
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va_list f;
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size_t n,r;
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if (!cdb)
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return NULL;
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va_start(f, fmt);
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vsprintf(p, fmt, f);
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r = cdb->size - cdb->pos;
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n = vsnprintf(cdb->p, r, fmt, f);
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va_end(f);
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p += strlen(p);
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if (n >= r) {
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/* truncated, need bigger buffer */
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size_t ns = 2 * cdb->size;
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u_char *nb;
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while ((ns - cdb->pos) <= n)
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ns *= 2;
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nb = kmalloc(ns, GFP_ATOMIC);
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if (!nb) {
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cdebbuf_free(cdb);
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return NULL;
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}
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memcpy(nb, cdb->buf, cdb->pos);
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kfree(cdb->buf);
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nb[cdb->pos] = 0;
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cdb->buf = nb;
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cdb->p = cdb->buf + cdb->pos;
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cdb->size = ns;
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va_start(f, fmt);
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r = cdb->size - cdb->pos;
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n = vsnprintf(cdb->p, r, fmt, f);
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va_end(f);
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}
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cdb->p += n;
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cdb->pos += n;
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return cdb;
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}
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static void printstructlen(u8 * m, unsigned len)
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static _cdebbuf *printstructlen(_cdebbuf *cdb, u8 * m, unsigned len)
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{
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unsigned hex = 0;
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if (!cdb)
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return NULL;
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for (; len; len--, m++)
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if (isalnum(*m) || *m == ' ') {
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if (hex)
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bufprint(">");
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bufprint("%c", *m);
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cdb = bufprint(cdb, ">");
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cdb = bufprint(cdb, "%c", *m);
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hex = 0;
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} else {
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if (!hex)
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bufprint("<%02x", *m);
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cdb = bufprint(cdb, "<%02x", *m);
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else
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bufprint(" %02x", *m);
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cdb = bufprint(cdb, " %02x", *m);
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hex = 1;
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}
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if (hex)
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bufprint(">");
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cdb = bufprint(cdb, ">");
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return cdb;
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}
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static void printstruct(u8 * m)
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static _cdebbuf *printstruct(_cdebbuf *cdb, u8 * m)
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{
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unsigned len;
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if (m[0] != 0xff) {
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len = m[0];
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m += 1;
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@ -748,42 +784,45 @@ static void printstruct(u8 * m)
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len = ((u16 *) (m + 1))[0];
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m += 3;
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}
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printstructlen(m, len);
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cdb = printstructlen(cdb, m, len);
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return cdb;
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}
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/*-------------------------------------------------------*/
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#define NAME (pnames[cmsg->par[cmsg->p]])
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static void protocol_message_2_pars(_cmsg * cmsg, int level)
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static _cdebbuf *protocol_message_2_pars(_cdebbuf *cdb, _cmsg *cmsg, int level)
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{
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for (; TYP != _CEND; cmsg->p++) {
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int slen = 29 + 3 - level;
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int i;
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bufprint(" ");
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if (!cdb)
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return NULL;
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cdb = bufprint(cdb, " ");
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for (i = 0; i < level - 1; i++)
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bufprint(" ");
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cdb = bufprint(cdb, " ");
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switch (TYP) {
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case _CBYTE:
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bufprint("%-*s = 0x%x\n", slen, NAME, *(u8 *) (cmsg->m + cmsg->l));
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cdb = bufprint(cdb, "%-*s = 0x%x\n", slen, NAME, *(u8 *) (cmsg->m + cmsg->l));
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cmsg->l++;
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break;
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case _CWORD:
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bufprint("%-*s = 0x%x\n", slen, NAME, *(u16 *) (cmsg->m + cmsg->l));
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cdb = bufprint(cdb, "%-*s = 0x%x\n", slen, NAME, *(u16 *) (cmsg->m + cmsg->l));
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cmsg->l += 2;
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break;
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case _CDWORD:
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bufprint("%-*s = 0x%lx\n", slen, NAME, *(u32 *) (cmsg->m + cmsg->l));
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cdb = bufprint(cdb, "%-*s = 0x%lx\n", slen, NAME, *(u32 *) (cmsg->m + cmsg->l));
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cmsg->l += 4;
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break;
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case _CSTRUCT:
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bufprint("%-*s = ", slen, NAME);
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cdb = bufprint(cdb, "%-*s = ", slen, NAME);
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if (cmsg->m[cmsg->l] == '\0')
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bufprint("default");
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cdb = bufprint(cdb, "default");
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else
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printstruct(cmsg->m + cmsg->l);
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bufprint("\n");
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cdb = printstruct(cdb, cmsg->m + cmsg->l);
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cdb = bufprint(cdb, "\n");
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if (cmsg->m[cmsg->l] != 0xff)
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cmsg->l += 1 + cmsg->m[cmsg->l];
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else
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@ -794,61 +833,184 @@ static void protocol_message_2_pars(_cmsg * cmsg, int level)
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case _CMSTRUCT:
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/*----- Metastruktur 0 -----*/
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if (cmsg->m[cmsg->l] == '\0') {
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bufprint("%-*s = default\n", slen, NAME);
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cdb = bufprint(cdb, "%-*s = default\n", slen, NAME);
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cmsg->l++;
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jumpcstruct(cmsg);
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} else {
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char *name = NAME;
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unsigned _l = cmsg->l;
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bufprint("%-*s\n", slen, name);
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cdb = bufprint(cdb, "%-*s\n", slen, name);
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cmsg->l = (cmsg->m + _l)[0] == 255 ? cmsg->l + 3 : cmsg->l + 1;
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cmsg->p++;
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protocol_message_2_pars(cmsg, level + 1);
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cdb = protocol_message_2_pars(cdb, cmsg, level + 1);
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}
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break;
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}
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}
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return cdb;
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}
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/*-------------------------------------------------------*/
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char *capi_message2str(u8 * msg)
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static _cdebbuf *g_debbuf;
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static u_long g_debbuf_lock;
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static _cmsg *g_cmsg;
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_cdebbuf *cdebbuf_alloc(void)
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{
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_cdebbuf *cdb;
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_cmsg cmsg;
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p = buf;
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p[0] = 0;
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if (likely(!test_and_set_bit(1, &g_debbuf_lock))) {
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cdb = g_debbuf;
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goto init;
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} else
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cdb = kmalloc(sizeof(_cdebbuf), GFP_ATOMIC);
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if (!cdb)
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return NULL;
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cdb->buf = kmalloc(CDEBUG_SIZE, GFP_ATOMIC);
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if (!cdb->buf) {
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kfree(cdb);
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return NULL;
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}
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cdb->size = CDEBUG_SIZE;
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init:
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cdb->buf[0] = 0;
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cdb->p = cdb->buf;
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cdb->pos = 0;
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return cdb;
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}
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cmsg.m = msg;
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cmsg.l = 8;
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cmsg.p = 0;
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byteTRcpy(cmsg.m + 4, &cmsg.Command);
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byteTRcpy(cmsg.m + 5, &cmsg.Subcommand);
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cmsg.par = cpars[command_2_index(cmsg.Command, cmsg.Subcommand)];
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void cdebbuf_free(_cdebbuf *cdb)
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{
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if (likely(cdb == g_debbuf)) {
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test_and_clear_bit(1, &g_debbuf_lock);
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return;
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}
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if (likely(cdb))
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kfree(cdb->buf);
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kfree(cdb);
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}
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bufprint("%-26s ID=%03d #0x%04x LEN=%04d\n",
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mnames[command_2_index(cmsg.Command, cmsg.Subcommand)],
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_cdebbuf *capi_message2str(u8 * msg)
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{
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_cdebbuf *cdb;
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_cmsg *cmsg;
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cdb = cdebbuf_alloc();
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if (unlikely(!cdb))
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return NULL;
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if (likely(cdb == g_debbuf))
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cmsg = g_cmsg;
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else
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cmsg = kmalloc(sizeof(_cmsg), GFP_ATOMIC);
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if (unlikely(!cmsg)) {
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cdebbuf_free(cdb);
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return NULL;
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}
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cmsg->m = msg;
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cmsg->l = 8;
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cmsg->p = 0;
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byteTRcpy(cmsg->m + 4, &cmsg->Command);
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byteTRcpy(cmsg->m + 5, &cmsg->Subcommand);
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cmsg->par = cpars[command_2_index(cmsg->Command, cmsg->Subcommand)];
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cdb = bufprint(cdb, "%-26s ID=%03d #0x%04x LEN=%04d\n",
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mnames[command_2_index(cmsg->Command, cmsg->Subcommand)],
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((unsigned short *) msg)[1],
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((unsigned short *) msg)[3],
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((unsigned short *) msg)[0]);
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protocol_message_2_pars(&cmsg, 1);
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return buf;
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cdb = protocol_message_2_pars(cdb, cmsg, 1);
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if (unlikely(cmsg != g_cmsg))
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kfree(cmsg);
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return cdb;
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}
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char *capi_cmsg2str(_cmsg * cmsg)
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_cdebbuf *capi_cmsg2str(_cmsg * cmsg)
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{
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p = buf;
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p[0] = 0;
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_cdebbuf *cdb;
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cdb = cdebbuf_alloc();
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if (!cdb)
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return NULL;
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cmsg->l = 8;
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cmsg->p = 0;
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bufprint("%s ID=%03d #0x%04x LEN=%04d\n",
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cdb = bufprint(cdb, "%s ID=%03d #0x%04x LEN=%04d\n",
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mnames[command_2_index(cmsg->Command, cmsg->Subcommand)],
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((u16 *) cmsg->m)[1],
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((u16 *) cmsg->m)[3],
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((u16 *) cmsg->m)[0]);
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protocol_message_2_pars(cmsg, 1);
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return buf;
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cdb = protocol_message_2_pars(cdb, cmsg, 1);
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return cdb;
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}
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int __init cdebug_init(void)
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{
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g_cmsg= kmalloc(sizeof(_cmsg), GFP_KERNEL);
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if (!g_cmsg)
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return ENOMEM;
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g_debbuf = kmalloc(sizeof(_cdebbuf), GFP_KERNEL);
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if (!g_debbuf) {
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kfree(g_cmsg);
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return ENOMEM;
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}
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g_debbuf->buf = kmalloc(CDEBUG_GSIZE, GFP_KERNEL);
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if (!g_debbuf->buf) {
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kfree(g_cmsg);
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kfree(g_debbuf);
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return ENOMEM;;
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}
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g_debbuf->size = CDEBUG_GSIZE;
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g_debbuf->buf[0] = 0;
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g_debbuf->p = g_debbuf->buf;
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g_debbuf->pos = 0;
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return 0;
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}
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void __exit cdebug_exit(void)
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{
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if (g_debbuf)
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kfree(g_debbuf->buf);
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kfree(g_debbuf);
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kfree(g_cmsg);
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}
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#else /* !CONFIG_CAPI_TRACE */
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static _cdebbuf g_debbuf = {"CONFIG_CAPI_TRACE not enabled", NULL, 0, 0};
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_cdebbuf *capi_message2str(u8 * msg)
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{
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return &g_debbuf;
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}
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_cdebbuf *capi_cmsg2str(_cmsg * cmsg)
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{
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return &g_debbuf;
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}
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_cdebbuf *cdebbuf_alloc(void)
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{
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return &g_debbuf;
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}
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void cdebbuf_free(_cdebbuf *cdb)
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{
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}
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int __init cdebug_init(void)
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{
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return 0;
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}
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void __exit cdebug_exit(void)
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{
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}
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#endif
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EXPORT_SYMBOL(cdebbuf_alloc);
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EXPORT_SYMBOL(cdebbuf_free);
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EXPORT_SYMBOL(capi_cmsg2message);
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EXPORT_SYMBOL(capi_message2cmsg);
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EXPORT_SYMBOL(capi_cmsg_header);
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|
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@ -276,10 +276,17 @@ void capi_ctr_handle_message(struct capi_ctr * card, u16 appl, struct sk_buff *s
|
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int showctl = 0;
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u8 cmd, subcmd;
|
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unsigned long flags;
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_cdebbuf *cdb;
|
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|
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if (card->cardstate != CARD_RUNNING) {
|
||||
printk(KERN_INFO "kcapi: controller %d not active, got: %s",
|
||||
card->cnr, capi_message2str(skb->data));
|
||||
cdb = capi_message2str(skb->data);
|
||||
if (cdb) {
|
||||
printk(KERN_INFO "kcapi: controller [%03d] not active, got: %s",
|
||||
card->cnr, cdb->buf);
|
||||
cdebbuf_free(cdb);
|
||||
} else
|
||||
printk(KERN_INFO "kcapi: controller [%03d] not active, cannot trace\n",
|
||||
card->cnr);
|
||||
goto error;
|
||||
}
|
||||
|
||||
|
|
@ -295,15 +302,21 @@ void capi_ctr_handle_message(struct capi_ctr * card, u16 appl, struct sk_buff *s
|
|||
showctl |= (card->traceflag & 1);
|
||||
if (showctl & 2) {
|
||||
if (showctl & 1) {
|
||||
printk(KERN_DEBUG "kcapi: got [0x%lx] id#%d %s len=%u\n",
|
||||
(unsigned long) card->cnr,
|
||||
CAPIMSG_APPID(skb->data),
|
||||
printk(KERN_DEBUG "kcapi: got [%03d] id#%d %s len=%u\n",
|
||||
card->cnr, CAPIMSG_APPID(skb->data),
|
||||
capi_cmd2str(cmd, subcmd),
|
||||
CAPIMSG_LEN(skb->data));
|
||||
} else {
|
||||
printk(KERN_DEBUG "kcapi: got [0x%lx] %s\n",
|
||||
(unsigned long) card->cnr,
|
||||
capi_message2str(skb->data));
|
||||
cdb = capi_message2str(skb->data);
|
||||
if (cdb) {
|
||||
printk(KERN_DEBUG "kcapi: got [%03d] %s\n",
|
||||
card->cnr, cdb->buf);
|
||||
cdebbuf_free(cdb);
|
||||
} else
|
||||
printk(KERN_DEBUG "kcapi: got [%03d] id#%d %s len=%u, cannot trace\n",
|
||||
card->cnr, CAPIMSG_APPID(skb->data),
|
||||
capi_cmd2str(cmd, subcmd),
|
||||
CAPIMSG_LEN(skb->data));
|
||||
}
|
||||
|
||||
}
|
||||
|
|
@ -312,8 +325,15 @@ void capi_ctr_handle_message(struct capi_ctr * card, u16 appl, struct sk_buff *s
|
|||
ap = get_capi_appl_by_nr(CAPIMSG_APPID(skb->data));
|
||||
if ((!ap) || (ap->release_in_progress)) {
|
||||
read_unlock_irqrestore(&application_lock, flags);
|
||||
printk(KERN_ERR "kcapi: handle_message: applid %d state released (%s)\n",
|
||||
CAPIMSG_APPID(skb->data), capi_message2str(skb->data));
|
||||
cdb = capi_message2str(skb->data);
|
||||
if (cdb) {
|
||||
printk(KERN_ERR "kcapi: handle_message: applid %d state released (%s)\n",
|
||||
CAPIMSG_APPID(skb->data), cdb->buf);
|
||||
cdebbuf_free(cdb);
|
||||
} else
|
||||
printk(KERN_ERR "kcapi: handle_message: applid %d state released (%s) cannot trace\n",
|
||||
CAPIMSG_APPID(skb->data),
|
||||
capi_cmd2str(cmd, subcmd));
|
||||
goto error;
|
||||
}
|
||||
skb_queue_tail(&ap->recv_queue, skb);
|
||||
|
|
@ -332,7 +352,7 @@ void capi_ctr_ready(struct capi_ctr * card)
|
|||
{
|
||||
card->cardstate = CARD_RUNNING;
|
||||
|
||||
printk(KERN_NOTICE "kcapi: card %d \"%s\" ready.\n",
|
||||
printk(KERN_NOTICE "kcapi: card [%03d] \"%s\" ready.\n",
|
||||
card->cnr, card->name);
|
||||
|
||||
notify_push(KCI_CONTRUP, card->cnr, 0, 0);
|
||||
|
|
@ -364,7 +384,7 @@ void capi_ctr_reseted(struct capi_ctr * card)
|
|||
capi_ctr_put(card);
|
||||
}
|
||||
|
||||
printk(KERN_NOTICE "kcapi: card %d down.\n", card->cnr);
|
||||
printk(KERN_NOTICE "kcapi: card [%03d] down.\n", card->cnr);
|
||||
|
||||
notify_push(KCI_CONTRDOWN, card->cnr, 0, 0);
|
||||
}
|
||||
|
|
@ -374,7 +394,7 @@ EXPORT_SYMBOL(capi_ctr_reseted);
|
|||
void capi_ctr_suspend_output(struct capi_ctr *card)
|
||||
{
|
||||
if (!card->blocked) {
|
||||
printk(KERN_DEBUG "kcapi: card %d suspend\n", card->cnr);
|
||||
printk(KERN_DEBUG "kcapi: card [%03d] suspend\n", card->cnr);
|
||||
card->blocked = 1;
|
||||
}
|
||||
}
|
||||
|
|
@ -384,7 +404,7 @@ EXPORT_SYMBOL(capi_ctr_suspend_output);
|
|||
void capi_ctr_resume_output(struct capi_ctr *card)
|
||||
{
|
||||
if (card->blocked) {
|
||||
printk(KERN_DEBUG "kcapi: card %d resume\n", card->cnr);
|
||||
printk(KERN_DEBUG "kcapi: card [%03d] resume\n", card->cnr);
|
||||
card->blocked = 0;
|
||||
}
|
||||
}
|
||||
|
|
@ -432,7 +452,7 @@ attach_capi_ctr(struct capi_ctr *card)
|
|||
}
|
||||
|
||||
ncards++;
|
||||
printk(KERN_NOTICE "kcapi: Controller %d: %s attached\n",
|
||||
printk(KERN_NOTICE "kcapi: Controller [%03d]: %s attached\n",
|
||||
card->cnr, card->name);
|
||||
return 0;
|
||||
}
|
||||
|
|
@ -451,7 +471,7 @@ int detach_capi_ctr(struct capi_ctr *card)
|
|||
card->procent = NULL;
|
||||
}
|
||||
capi_cards[card->cnr - 1] = NULL;
|
||||
printk(KERN_NOTICE "kcapi: Controller %d: %s unregistered\n",
|
||||
printk(KERN_NOTICE "kcapi: Controller [%03d]: %s unregistered\n",
|
||||
card->cnr, card->name);
|
||||
|
||||
return 0;
|
||||
|
|
@ -623,17 +643,25 @@ u16 capi20_put_message(struct capi20_appl *ap, struct sk_buff *skb)
|
|||
showctl |= (card->traceflag & 1);
|
||||
if (showctl & 2) {
|
||||
if (showctl & 1) {
|
||||
printk(KERN_DEBUG "kcapi: put [%#x] id#%d %s len=%u\n",
|
||||
printk(KERN_DEBUG "kcapi: put [%03d] id#%d %s len=%u\n",
|
||||
CAPIMSG_CONTROLLER(skb->data),
|
||||
CAPIMSG_APPID(skb->data),
|
||||
capi_cmd2str(cmd, subcmd),
|
||||
CAPIMSG_LEN(skb->data));
|
||||
} else {
|
||||
printk(KERN_DEBUG "kcapi: put [%#x] %s\n",
|
||||
CAPIMSG_CONTROLLER(skb->data),
|
||||
capi_message2str(skb->data));
|
||||
_cdebbuf *cdb = capi_message2str(skb->data);
|
||||
if (cdb) {
|
||||
printk(KERN_DEBUG "kcapi: put [%03d] %s\n",
|
||||
CAPIMSG_CONTROLLER(skb->data),
|
||||
cdb->buf);
|
||||
cdebbuf_free(cdb);
|
||||
} else
|
||||
printk(KERN_DEBUG "kcapi: put [%03d] id#%d %s len=%u cannot trace\n",
|
||||
CAPIMSG_CONTROLLER(skb->data),
|
||||
CAPIMSG_APPID(skb->data),
|
||||
capi_cmd2str(cmd, subcmd),
|
||||
CAPIMSG_LEN(skb->data));
|
||||
}
|
||||
|
||||
}
|
||||
return card->send_message(card, skb);
|
||||
}
|
||||
|
|
@ -894,7 +922,7 @@ int capi20_manufacturer(unsigned int cmd, void __user *data)
|
|||
return -ESRCH;
|
||||
|
||||
card->traceflag = fdef.flag;
|
||||
printk(KERN_INFO "kcapi: contr %d set trace=%d\n",
|
||||
printk(KERN_INFO "kcapi: contr [%03d] set trace=%d\n",
|
||||
card->cnr, card->traceflag);
|
||||
return 0;
|
||||
}
|
||||
|
|
@ -967,7 +995,11 @@ static int __init kcapi_init(void)
|
|||
{
|
||||
char *p;
|
||||
char rev[32];
|
||||
int ret;
|
||||
|
||||
ret = cdebug_init();
|
||||
if (ret)
|
||||
return ret;
|
||||
kcapi_proc_init();
|
||||
|
||||
if ((p = strchr(revision, ':')) != 0 && p[1]) {
|
||||
|
|
@ -988,6 +1020,7 @@ static void __exit kcapi_exit(void)
|
|||
|
||||
/* make sure all notifiers are finished */
|
||||
flush_scheduled_work();
|
||||
cdebug_exit();
|
||||
}
|
||||
|
||||
module_init(kcapi_init);
|
||||
|
|
|
|||
|
|
@ -174,9 +174,26 @@ char *capi_info2str(__u16 reason);
|
|||
/*
|
||||
* Debugging / Tracing functions
|
||||
*/
|
||||
|
||||
char *capi_cmd2str(__u8 cmd, __u8 subcmd);
|
||||
char *capi_cmsg2str(_cmsg * cmsg);
|
||||
char *capi_message2str(__u8 * msg);
|
||||
|
||||
typedef struct {
|
||||
u_char *buf;
|
||||
u_char *p;
|
||||
size_t size;
|
||||
size_t pos;
|
||||
} _cdebbuf;
|
||||
|
||||
#define CDEBUG_SIZE 1024
|
||||
#define CDEBUG_GSIZE 4096
|
||||
|
||||
_cdebbuf *cdebbuf_alloc(void);
|
||||
void cdebbuf_free(_cdebbuf *cdb);
|
||||
int cdebug_init(void);
|
||||
void cdebug_exit(void);
|
||||
|
||||
_cdebbuf *capi_cmsg2str(_cmsg *cmsg);
|
||||
_cdebbuf *capi_message2str(__u8 *msg);
|
||||
|
||||
/*-----------------------------------------------------------------------*/
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue