diff --git a/channels/DialTone.h b/channels/DialTone.h
new file mode 100755
index 0000000000000000000000000000000000000000..29ccf38dbaf28c1222d9e373e03382deebc5d9ac
--- /dev/null
+++ b/channels/DialTone.h
@@ -0,0 +1,252 @@
+/*
+ * 8-bit raw data
+ *
+ * Source: DialTone.ulaw
+ *
+ * Copyright (C) 1999, Mark Spencer and Linux Support Services
+ *
+ * Distributed under the terms of the GNU General Public License
+ *
+ */
+
+static unsigned char DialTone[] = {
+0xff, 0xab, 0x9d, 0x96, 0x91, 0x90, 0x91, 0x96, 0x9c, 0xaa,
+0xd9, 0x2f, 0x1f, 0x19, 0x15, 0x14, 0x15, 0x19, 0x1f, 0x2c,
+0x4e, 0xb9, 0xa7, 0x9f, 0x9c, 0x9b, 0x9c, 0x9f, 0xa7, 0xb3,
+0xcf, 0x47, 0x34, 0x2d, 0x2a, 0x2a, 0x2c, 0x31, 0x3a, 0x47,
+0x5f, 0xe4, 0xd8, 0xd9, 0xe9, 0x64, 0x4f, 0x49, 0x46, 0x49,
+0x58, 0xde, 0xc2, 0xb5, 0xad, 0xa8, 0xa6, 0xa6, 0xa9, 0xaf,
+0xbf, 0x56, 0x32, 0x26, 0x1e, 0x1b, 0x19, 0x1a, 0x1d, 0x24,
+0x33, 0xdd, 0xad, 0x9f, 0x98, 0x94, 0x92, 0x93, 0x97, 0x9e,
+0xac, 0xf8, 0x2c, 0x1d, 0x16, 0x11, 0xf, 0x10, 0x15, 0x1b,
+0x29, 0x55, 0xae, 0x9e, 0x97, 0x92, 0x90, 0x91, 0x95, 0x9c,
+0xa8, 0xca, 0x35, 0x22, 0x1a, 0x16, 0x15, 0x16, 0x19, 0x1f,
+0x2b, 0x47, 0xbe, 0xab, 0xa2, 0x9e, 0x9d, 0x9e, 0xa2, 0xa9,
+0xb4, 0xcc, 0x4f, 0x3a, 0x32, 0x2f, 0x2f, 0x32, 0x39, 0x41,
+0x4f, 0x67, 0xf5, 0xf5, 0x67, 0x51, 0x46, 0x3e, 0x3b, 0x3b,
+0x3f, 0x4d, 0xe2, 0xbe, 0xb0, 0xa9, 0xa4, 0xa1, 0xa1, 0xa5,
+0xab, 0xba, 0x64, 0x33, 0x25, 0x1d, 0x19, 0x17, 0x18, 0x1b,
+0x20, 0x2e, 0x72, 0xae, 0x9f, 0x98, 0x94, 0x91, 0x92, 0x96,
+0x9c, 0xa9, 0xd4, 0x2f, 0x1e, 0x17, 0x11, 0xf, 0x10, 0x14,
+0x1a, 0x26, 0x48, 0xb2, 0x9f, 0x98, 0x93, 0x91, 0x92, 0x95,
+0x9b, 0xa7, 0xc1, 0x3a, 0x25, 0x1c, 0x18, 0x16, 0x17, 0x1a,
+0x1f, 0x2b, 0x42, 0xc6, 0xae, 0xa6, 0xa0, 0x9f, 0xa0, 0xa5,
+0xab, 0xb6, 0xcb, 0x5a, 0x40, 0x39, 0x36, 0x37, 0x3b, 0x43,
+0x4e, 0x60, 0x7b, 0x7c, 0x60, 0x4e, 0x41, 0x3a, 0x34, 0x32,
+0x33, 0x39, 0x45, 0xed, 0xbd, 0xae, 0xa6, 0xa0, 0x9e, 0x9e,
+0xa0, 0xa8, 0xb4, 0xef, 0x34, 0x24, 0x1c, 0x18, 0x16, 0x16,
+0x19, 0x1e, 0x2b, 0x54, 0xb1, 0x9f, 0x98, 0x93, 0x91, 0x91,
+0x95, 0x9b, 0xa6, 0xc6, 0x33, 0x1f, 0x17, 0x12, 0xf, 0x10,
+0x13, 0x1a, 0x24, 0x3e, 0xb8, 0xa2, 0x99, 0x94, 0x92, 0x92,
+0x96, 0x9b, 0xa6, 0xbc, 0x40, 0x29, 0x1e, 0x1a, 0x18, 0x19,
+0x1b, 0x20, 0x2b, 0x3f, 0xcf, 0xb3, 0xa9, 0xa5, 0xa3, 0xa4,
+0xa8, 0xae, 0xb9, 0xcc, 0x67, 0x49, 0x40, 0x3f, 0x42, 0x4a,
+0x59, 0x79, 0xe5, 0xe4, 0x7a, 0x54, 0x43, 0x39, 0x31, 0x2d,
+0x2c, 0x2d, 0x32, 0x3e, 0x71, 0xbd, 0xad, 0xa4, 0x9e, 0x9c,
+0x9c, 0x9e, 0xa4, 0xaf, 0xd7, 0x36, 0x24, 0x1c, 0x17, 0x15,
+0x15, 0x17, 0x1d, 0x28, 0x47, 0xb5, 0xa1, 0x98, 0x93, 0x90,
+0x90, 0x93, 0x99, 0xa4, 0xbd, 0x38, 0x21, 0x18, 0x13, 0x10,
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+0x1a, 0x1d, 0x22, 0x2c, 0x3d, 0xdc, 0xb8, 0xad, 0xa9, 0xa8,
+0xa9, 0xac, 0xb2, 0xbd, 0xce, 0x78, 0x54, 0x4d, 0x4f, 0x5a,
+0xff, 0xda, 0xcf, 0xcd, 0xd4, 0xf8, 0x4e, 0x3d, 0x32, 0x2c,
+0x29, 0x28, 0x29, 0x2d, 0x38, 0x5c, 0xbd, 0xac, 0xa2, 0x9d,
+0x9a, 0x9a, 0x9c, 0xa0, 0xac, 0xca, 0x39, 0x25, 0x1b, 0x16,
+0x13, 0x13, 0x16, 0x1b, 0x25, 0x3e, 0xb9, 0xa2, 0x99, 0x93,
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+0x10, 0x10, 0x13, 0x18, 0x21, 0x35, 0xc7, 0xa8, 0x9d, 0x97,
+0x95, 0x95, 0x97, 0x9c, 0xa4, 0xb6, 0x57, 0x2f, 0x24, 0x1e,
+0x1c, 0x1c, 0x1e, 0x24, 0x2d, 0x3d, 0xf1, 0xbe, 0xb2, 0xad,
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+0x1c, 0x16, 0x12, 0x11, 0x14, 0x18, 0x1f, 0x2e, 0xf2, 0xae,
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+0x2b, 0x25, 0x21, 0x21, 0x24, 0x29, 0x30, 0x3e, 0x62, 0xcd,
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+0xcf, 0xc1, 0xb9, 0xb2, 0xaf, 0xaf, 0xb2, 0xba, 0xcf, 0x4c,
+0x34, 0x29, 0x22, 0x1e, 0x1d, 0x1e, 0x22, 0x2b, 0x3e, 0xc7,
+0xab, 0x9f, 0x99, 0x96, 0x95, 0x96, 0x9a, 0xa2, 0xb5, 0x4a,
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+0xff, 0xab, 0x9d, 0x96, 0x91, 0x90, 0x91, 0x96, 0x9c, 0xaa,
+0xd9, 0x2f, 0x1f, 0x19, 0x15, 0x14, 0x15, 0x19, 0x1f, 0x2c,
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+0x3f, 0x4d, 0xe2, 0xbe, 0xb0, 0xa9, 0xa4, 0xa1, 0xa1, 0xa5,
+0xab, 0xba, 0x64, 0x33, 0x25, 0x1d, 0x19, 0x17, 0x18, 0x1b,
+0x20, 0x2e, 0x72, 0xae, 0x9f, 0x98, 0x94, 0x91, 0x92, 0x96,
+0x9c, 0xa9, 0xd4, 0x2f, 0x1e, 0x17, 0x11, 0xf, 0x10, 0x14,
+0x1a, 0x26, 0x48, 0xb2, 0x9f, 0x98, 0x93, 0x91, 0x92, 0x95,
+0x9b, 0xa7, 0xc1, 0x3a, 0x25, 0x1c, 0x18, 0x16, 0x17, 0x1a,
+0x1f, 0x2b, 0x42, 0xc6, 0xae, 0xa6, 0xa0, 0x9f, 0xa0, 0xa5,
+0xab, 0xb6, 0xcb, 0x5a, 0x40, 0x39, 0x36, 0x37, 0x3b, 0x43,
+0x4e, 0x60, 0x7b, 0x7c, 0x60, 0x4e, 0x41, 0x3a, 0x34, 0x32,
+0x33, 0x39, 0x45, 0xed, 0xbd, 0xae, 0xa6, 0xa0, 0x9e, 0x9e,
+0xa0, 0xa8, 0xb4, 0xef, 0x34, 0x24, 0x1c, 0x18, 0x16, 0x16,
+0x19, 0x1e, 0x2b, 0x54, 0xb1, 0x9f, 0x98, 0x93, 0x91, 0x91,
+0x95, 0x9b, 0xa6, 0xc6, 0x33, 0x1f, 0x17, 0x12, 0xf, 0x10,
+0x13, 0x1a, 0x24, 0x3e, 0xb8, 0xa2, 0x99, 0x94, 0x92, 0x92,
+0x96, 0x9b, 0xa6, 0xbc, 0x40, 0x29, 0x1e, 0x1a, 0x18, 0x19,
+0x1b, 0x20, 0x2b, 0x3f, 0xcf, 0xb3, 0xa9, 0xa5, 0xa3, 0xa4,
+0xa8, 0xae, 0xb9, 0xcc, 0x67, 0x49, 0x40, 0x3f, 0x42, 0x4a,
+0x59, 0x79, 0xe5, 0xe4, 0x7a, 0x54, 0x43, 0x39, 0x31, 0x2d,
+0x2c, 0x2d, 0x32, 0x3e, 0x71, 0xbd, 0xad, 0xa4, 0x9e, 0x9c,
+0x9c, 0x9e, 0xa4, 0xaf, 0xd7, 0x36, 0x24, 0x1c, 0x17, 0x15,
+0x15, 0x17, 0x1d, 0x28, 0x47, 0xb5, 0xa1, 0x98, 0x93, 0x90,
+0x90, 0x93, 0x99, 0xa4, 0xbd, 0x38, 0x21, 0x18, 0x13, 0x10,
+0x10, 0x13, 0x19, 0x22, 0x39, 0xbe, 0xa5, 0x9b, 0x96, 0x93,
+0x93, 0x96, 0x9b, 0xa5, 0xb9, 0x4a, 0x2c, 0x20, 0x1c, 0x1a,
+0x1a, 0x1d, 0x22, 0x2c, 0x3d, 0xdc, 0xb8, 0xad, 0xa9, 0xa8,
+0xa9, 0xac, 0xb2, 0xbd, 0xce, 0x78, 0x54, 0x4d, 0x4f, 0x5a,
+0xff, 0xda, 0xcf, 0xcd, 0xd4, 0xf8, 0x4e, 0x3d, 0x32, 0x2c,
+0x29, 0x28, 0x29, 0x2d, 0x38, 0x5c, 0xbd, 0xac, 0xa2, 0x9d,
+0x9a, 0x9a, 0x9c, 0xa0, 0xac, 0xca, 0x39, 0x25, 0x1b, 0x16,
+0x13, 0x13, 0x16, 0x1b, 0x25, 0x3e, 0xb9, 0xa2, 0x99, 0x93,
+0x90, 0x90, 0x93, 0x98, 0xa1, 0xb8, 0x3d, 0x24, 0x19, 0x13,
+0x10, 0x10, 0x13, 0x18, 0x21, 0x35, 0xc7, 0xa8, 0x9d, 0x97,
+0x95, 0x95, 0x97, 0x9c, 0xa4, 0xb6, 0x57, 0x2f, 0x24, 0x1e,
+0x1c, 0x1c, 0x1e, 0x24, 0x2d, 0x3d, 0xf1, 0xbe, 0xb2, 0xad,
+0xac, 0xad, 0xb1, 0xb9, 0xc3, 0xd4, 0xfa, 0x64, 0x65, 0xf9,
+0xd9, 0xca, 0xc2, 0xbf, 0xc0, 0xc9, 0xe7, 0x4c, 0x39, 0x2e,
+0x28, 0x24, 0x23, 0x25, 0x29, 0x33, 0x4f, 0xbf, 0xab, 0xa0,
+0x9b, 0x99, 0x98, 0x9a, 0x9e, 0xa9, 0xc0, 0x3c, 0x26, 0x1b,
+0x16, 0x12, 0x12, 0x14, 0x19, 0x22, 0x38, 0xbe, 0xa4, 0x9a,
+0x93, 0x90, 0x8f, 0x92, 0x97, 0x9f, 0xb3, 0x46, 0x26, 0x1b,
+0x15, 0x11, 0x11, 0x13, 0x18, 0x1f, 0x31, 0xd4, 0xab, 0x9e,
+0x99, 0x96, 0x96, 0x98, 0x9c, 0xa4, 0xb4, 0x6f, 0x34, 0x28,
+0x20, 0x1e, 0x1e, 0x20, 0x26, 0x2e, 0x3d, 0x6d, 0xc5, 0xb9,
+0xb3, 0xb2, 0xb4, 0xba, 0xc1, 0xcd, 0xe0, 0xfc, 0xfb, 0xe0,
+0xce, 0xc3, 0xbb, 0xb7, 0xb6, 0xb9, 0xc0, 0xda, 0x4b, 0x36,
+0x2b, 0x25, 0x20, 0x1f, 0x20, 0x26, 0x2e, 0x46, 0xc2, 0xab,
+0x9f, 0x9a, 0x97, 0x96, 0x98, 0x9c, 0xa5, 0xba, 0x41, 0x27,
+0x1b, 0x15, 0x12, 0x11, 0x13, 0x18, 0x1f, 0x32, 0xc8, 0xa6,
+0x9a, 0x94, 0x90, 0x8f, 0x91, 0x97, 0x9e, 0xaf, 0x54, 0x29,
+0x1c, 0x16, 0x12, 0x11, 0x14, 0x18, 0x1f, 0x2e, 0xf2, 0xae,
+0xa0, 0x9b, 0x98, 0x97, 0x99, 0x9d, 0xa5, 0xb3, 0xe4, 0x3a,
+0x2b, 0x25, 0x21, 0x21, 0x24, 0x29, 0x30, 0x3e, 0x62, 0xcd,
+0xbf, 0xbb, 0xbb, 0xbe, 0xc6, 0xd1, 0xe7, 0x76, 0x75, 0xe7,
+0xcf, 0xc1, 0xb9, 0xb2, 0xaf, 0xaf, 0xb2, 0xba, 0xcf, 0x4c,
+0x34, 0x29, 0x22, 0x1e, 0x1d, 0x1e, 0x22, 0x2b, 0x3e, 0xc7,
+0xab, 0x9f, 0x99, 0x96, 0x95, 0x96, 0x9a, 0xa2, 0xb5, 0x4a,
+0x28, 0x1c, 0x15, 0x11, 0x10, 0x12, 0x17, 0x1e, 0x2e, 0xd5,
+0xa9, 0x9b, 0x95, 0x90, 0x8f, 0x91, 0x96, 0x9d, 0xac, 0x78,
+0x2c, 0x1e, 0x17, 0x13, 0x12, 0x14, 0x18, 0x1f, 0x2d, 0x5d,
+0xb3, 0xa4, 0x9d, 0x9a, 0x99, 0x9b, 0x9e, 0xa6, 0xb2, 0xd6,
+0x3f, 0x2f, 0x29, 0x26, 0x26, 0x28, 0x2d, 0x35, 0x42, 0x5e,
+0xd8, 0xca, 0xc6, 0xc9, 0xcf, 0xe4, 0x69, 0x59, 0x58, 0x64,
+0xdf, 0xc7, 0xba, 0xb1, 0xac, 0xaa, 0xaa, 0xad, 0xb4, 0xc7,
+0x4f, 0x33, 0x27, 0x1f, 0x1c, 0x1b, 0x1c, 0x1f, 0x27, 0x39,
+0xce, 0xac, 0x9f, 0x99, 0x95, 0x94, 0x95, 0x99, 0x9f, 0xaf,
+0x59, 0x2a, 0x1c, 0x16, 0x11, 0x10, 0x11, 0x16, 0x1d, 0x2b };
diff --git a/channels/chan_ixj.c b/channels/chan_ixj.c
new file mode 100755
index 0000000000000000000000000000000000000000..5f476cdf64fa5822ccb9b7de56d7f4f99e80ddb8
--- /dev/null
+++ b/channels/chan_ixj.c
@@ -0,0 +1,889 @@
+/*
+ * Asterisk -- A telephony toolkit for Linux.
+ *
+ * QuickNet Internet Phone Jack Channel
+ *
+ * Copyright (C) 1999, Adtran Inc. and Linux Support Services, LLC
+ *
+ * Mark Spencer <markster@linux-support.net>
+ *
+ * This program is free software, distributed under the terms of
+ * the GNU General Public License
+ */
+
+#include <stdio.h>
+#include <pthread.h>
+#include <string.h>
+#include <asterisk/channel.h>
+#include <asterisk/channel_pvt.h>
+#include <asterisk/config.h>
+#include <asterisk/logger.h>
+#include <asterisk/module.h>
+#include <asterisk/pbx.h>
+#include <asterisk/options.h>
+#include <sys/socket.h>
+#include <sys/time.h>
+#include <errno.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <arpa/inet.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include <linux/if_packet.h>
+#include <linux/if_ether.h>
+#include "ixjuser.h"
+#include "DialTone.h"
+
+#define IXJ_MAX_BUF 480
+
+static char *desc = "QuickNet Internet Phone Jack";
+static char *type = "PhoneJack";
+static char *tdesc = "QuickNet Internet Phone Jack";
+static char *config = "ixj.conf";
+
+/* Default context for dialtone mode */
+static char context[AST_MAX_EXTENSION] = "default";
+
+char *ignore_rcs_id_for_chan_ixj = ixjuser_h_rcsid;
+
+static int usecnt =0;
+static pthread_mutex_t usecnt_lock = PTHREAD_MUTEX_INITIALIZER;
+
+/* Protect the interface list (of ixj_pvt's) */
+static pthread_mutex_t iflock = PTHREAD_MUTEX_INITIALIZER;
+
+/* Protect the monitoring thread, so only one process can kill or start it, and not
+ when it's doing something critical. */
+static pthread_mutex_t monlock = PTHREAD_MUTEX_INITIALIZER;
+
+/* This is the thread for the monitor which checks for input on the channels
+ which are not currently in use. */
+static pthread_t monitor_thread = -1;
+
+static int restart_monitor();
+
+/* The private structures of the Phone Jack channels are linked for
+ selecting outgoing channels */
+
+#define MODE_DIALTONE 1
+#define MODE_IMMEDIATE 2
+
+static struct ixj_pvt {
+ int fd; /* Raw file descriptor for this device */
+ struct ast_channel *owner; /* Channel we belong to, possibly NULL */
+ int mode; /* Is this in the */
+ int lastformat; /* Last output format */
+ int lastinput; /* Last input format */
+ int ministate; /* Miniature state, for dialtone mode */
+ char dev[256]; /* Device name */
+ struct ixj_pvt *next; /* Next channel in list */
+ struct ast_frame fr; /* Frame */
+ char offset[AST_FRIENDLY_OFFSET];
+ char buf[IXJ_MAX_BUF]; /* Static buffer for reading frames */
+ int obuflen;
+ int dialtone;
+ char context[AST_MAX_EXTENSION];
+ char obuf[IXJ_MAX_BUF * 2];
+ char ext[AST_MAX_EXTENSION];
+} *iflist = NULL;
+
+static int ixj_digit(struct ast_channel *ast, char digit)
+{
+ struct ixj_pvt *p;
+ int outdigit;
+ p = ast->pvt->pvt;
+ switch(digit) {
+ case '0':
+ case '1':
+ case '2':
+ case '3':
+ case '4':
+ case '5':
+ case '6':
+ case '7':
+ case '8':
+ case '9':
+ outdigit = digit - '0' + 1;
+ break;
+ case '*':
+ outdigit = 11;
+ break;
+ case '#':
+ outdigit = 12;
+ break;
+ default:
+ ast_log(LOG_WARNING, "Unknown digit '%c'\n", digit);
+ return -1;
+ }
+ ioctl(p->fd, IXJCTL_PLAY_TONE, digit);
+ return 0;
+}
+
+static int ixj_call(struct ast_channel *ast, char *dest, int timeout)
+{
+ struct ixj_pvt *p;
+ p = ast->pvt->pvt;
+ if ((ast->state != AST_STATE_DOWN) && (ast->state != AST_STATE_RESERVED)) {
+ ast_log(LOG_WARNING, "ixj_call called on %s, neither down nor reserved\n", ast->name);
+ return -1;
+ }
+ /* When we call, it just works, really, there's no destination... Just
+ ring the phone and wait for someone to answer */
+ ast_log(LOG_DEBUG, "Ringing %s on %s (%d)\n", dest, ast->name, ast->fd);
+ ioctl(p->fd, IXJCTL_RING_START);
+ ast->state = AST_STATE_RINGING;
+ return 0;
+}
+
+static int ixj_hangup(struct ast_channel *ast)
+{
+ struct ixj_pvt *p;
+ p = ast->pvt->pvt;
+ ast_log(LOG_DEBUG, "ixj_hangup(%s)\n", ast->name);
+ if (!ast->pvt->pvt) {
+ ast_log(LOG_WARNING, "Asked to hangup channel not connected\n");
+ return 0;
+ }
+ /* XXX Is there anything we can do to really hang up except stop recording? */
+ ast->state = AST_STATE_DOWN;
+ if (ioctl(p->fd, IXJCTL_REC_STOP))
+ ast_log(LOG_WARNING, "Failed to stop recording\n");
+ if (ioctl(p->fd, IXJCTL_PLAY_STOP))
+ ast_log(LOG_WARNING, "Failed to stop playing\n");
+ if (ioctl(p->fd, IXJCTL_RING_STOP))
+ ast_log(LOG_WARNING, "Failed to stop ringing\n");
+ if (ioctl(p->fd, IXJCTL_CPT_STOP))
+ ast_log(LOG_WARNING, "Failed to stop sounds\n");
+ /* If they're off hook, give a busy signal */
+ if (ioctl(p->fd, IXJCTL_HOOKSTATE))
+ ioctl(p->fd, IXJCTL_BUSY);
+ p->lastformat = -1;
+ p->lastinput = -1;
+ p->ministate = 0;
+ p->obuflen = 0;
+ p->dialtone = 0;
+ memset(p->ext, 0, sizeof(p->ext));
+ ((struct ixj_pvt *)(ast->pvt->pvt))->owner = NULL;
+ pthread_mutex_lock(&usecnt_lock);
+ usecnt--;
+ if (usecnt < 0)
+ ast_log(LOG_WARNING, "Usecnt < 0???\n");
+ pthread_mutex_unlock(&usecnt_lock);
+ ast_update_use_count();
+ if (option_verbose > 2)
+ ast_verbose( VERBOSE_PREFIX_3 "Hungup '%s'\n", ast->name);
+ ast->pvt->pvt = NULL;
+ ast->state = AST_STATE_DOWN;
+ restart_monitor();
+ return 0;
+}
+
+static int ixj_setup(struct ast_channel *ast)
+{
+ struct ixj_pvt *p;
+ p = ast->pvt->pvt;
+ ioctl(p->fd, IXJCTL_CPT_STOP);
+ /* Nothing to answering really, just start recording */
+ if (ast->format & AST_FORMAT_G723_1) {
+ /* Prefer g723 */
+ ioctl(p->fd, IXJCTL_REC_STOP);
+ if (p->lastinput != AST_FORMAT_G723_1) {
+ p->lastinput = AST_FORMAT_G723_1;
+ if (ioctl(p->fd, IXJCTL_REC_CODEC, G723_63)) {
+ ast_log(LOG_WARNING, "Failed to set codec to g723.1\n");
+ return -1;
+ }
+ }
+ } else if (ast->format & AST_FORMAT_SLINEAR) {
+ ioctl(p->fd, IXJCTL_REC_STOP);
+ if (p->lastinput != AST_FORMAT_SLINEAR) {
+ p->lastinput = AST_FORMAT_SLINEAR;
+ if (ioctl(p->fd, IXJCTL_REC_CODEC, LINEAR16)) {
+ ast_log(LOG_WARNING, "Failed to set codec to signed linear 16\n");
+ return -1;
+ }
+ }
+ } else {
+ ast_log(LOG_WARNING, "Can't do format %d\n", ast->format);
+ return -1;
+ }
+ if (ioctl(p->fd, IXJCTL_REC_START)) {
+ ast_log(LOG_WARNING, "Failed to start recording\n");
+ return -1;
+ }
+ return 0;
+}
+
+static int ixj_answer(struct ast_channel *ast)
+{
+ ixj_setup(ast);
+ ast_log(LOG_DEBUG, "ixj_answer(%s)\n", ast->name);
+ ast->rings = 0;
+ ast->state = AST_STATE_UP;
+ return 0;
+}
+
+static char ixj_2digit(char c)
+{
+ if (c == 12)
+ return '#';
+ else if (c == 11)
+ return '*';
+ else if ((c < 10) && (c >= 0))
+ return '0' + c - 1;
+ else
+ return '?';
+}
+
+static struct ast_frame *ixj_read(struct ast_channel *ast)
+{
+ int res;
+ IXJ_EXCEPTION ixje;
+ struct ixj_pvt *p = ast->pvt->pvt;
+ char digit;
+
+ /* Some nice norms */
+ p->fr.datalen = 0;
+ p->fr.timelen = 0;
+ p->fr.data = NULL;
+ p->fr.src = type;
+ p->fr.offset = 0;
+ p->fr.mallocd=0;
+
+ ixje.bytes = ioctl(p->fd, IXJCTL_EXCEPTION);
+ if (ixje.bits.dtmf_ready) {
+ /* We've got a digit -- Just handle this nicely and easily */
+ digit = ioctl(p->fd, IXJCTL_GET_DTMF_ASCII);
+ p->fr.subclass = digit;
+ p->fr.frametype = AST_FRAME_DTMF;
+ return &p->fr;
+ }
+ if (ixje.bits.hookstate) {
+ res = ioctl(p->fd, IXJCTL_HOOKSTATE);
+ /* See if we've gone on hook, if so, notify by returning NULL */
+ if (!res)
+ return NULL;
+ else {
+ if (ast->state == AST_STATE_RINGING) {
+ /* They've picked up the phone */
+ p->fr.frametype = AST_FRAME_CONTROL;
+ p->fr.subclass = AST_CONTROL_ANSWER;
+ ixj_setup(ast);
+ ast->state = AST_STATE_UP;
+ return &p->fr;
+ } else
+ ast_log(LOG_WARNING, "Got off hook in weird state\n");
+ }
+ }
+#if 0
+ if (ixje.bits.pstn_ring)
+ ast_verbose("Unit is ringing\n");
+ if (ixje.bits.caller_id) {
+ ast_verbose("We have caller ID: %s\n");
+ }
+#endif
+ /* Try to read some data... */
+ CHECK_BLOCKING(ast);
+ res = read(p->fd, p->buf, IXJ_MAX_BUF);
+ ast->blocking = 0;
+ if (res < 0) {
+ ast_log(LOG_WARNING, "Error reading: %s\n", strerror(errno));
+ return NULL;
+ }
+ p->fr.data = p->buf;
+ p->fr.datalen = res;
+ p->fr.frametype = AST_FRAME_VOICE;
+ p->fr.subclass = p->lastinput;
+ p->fr.offset = AST_FRIENDLY_OFFSET;
+ return &p->fr;
+}
+
+static int ixj_write_buf(struct ixj_pvt *p, char *buf, int len, int frlen)
+{
+ int res;
+ /* Store as much of the buffer as we can, then write fixed frames */
+ int space = sizeof(p->obuf) - p->obuflen;
+ /* Make sure we have enough buffer space to store the frame */
+ if (space < len)
+ len = space;
+ memcpy(p->obuf + p->obuflen, buf, len);
+ p->obuflen += len;
+ while(p->obuflen > frlen) {
+#if 0
+ res = frlen;
+ ast_log(LOG_DEBUG, "Wrote %d bytes\n", res);
+#else
+ res = write(p->fd, p->obuf, frlen);
+#endif
+ if (res != frlen) {
+ if (res < 1) {
+ ast_log(LOG_WARNING, "Write failed: %s\n", strerror(errno));
+ return -1;
+ } else {
+ ast_log(LOG_WARNING, "Only wrote %d of %d bytes\n", res, frlen);
+ }
+ }
+ p->obuflen -= frlen;
+ /* Move memory if necessary */
+ if (p->obuflen)
+ memmove(p->obuf, p->obuf + frlen, p->obuflen);
+ }
+ return len;
+}
+
+static int ixj_write(struct ast_channel *ast, struct ast_frame *frame)
+{
+ struct ixj_pvt *p = ast->pvt->pvt;
+ int res;
+ int maxfr=0;
+ char *pos;
+ int sofar;
+ int expected;
+ /* Write a frame of (presumably voice) data */
+ if (frame->frametype != AST_FRAME_VOICE) {
+ ast_log(LOG_WARNING, "Don't know what to do with frame type '%d'\n", frame->frametype);
+ ast_frfree(frame);
+ return -1;
+ }
+ if (!(frame->subclass & (AST_FORMAT_G723_1 | AST_FORMAT_SLINEAR))) {
+ ast_log(LOG_WARNING, "Cannot handle frames in %d format\n", frame->subclass);
+ ast_frfree(frame);
+ return -1;
+ }
+ if (frame->subclass == AST_FORMAT_G723_1) {
+ if (p->lastformat != AST_FORMAT_G723_1) {
+ ioctl(p->fd, IXJCTL_PLAY_STOP);
+ if (ioctl(p->fd, IXJCTL_PLAY_CODEC, G723_63)) {
+ ast_log(LOG_WARNING, "Unable to set G723.1 mode\n");
+ return -1;
+ }
+ p->lastformat = AST_FORMAT_G723_1;
+ /* Reset output buffer */
+ p->obuflen = 0;
+ }
+ if (frame->datalen > 24) {
+ ast_log(LOG_WARNING, "Frame size too large for G.723.1 (%d bytes)\n", frame->datalen);
+ return -1;
+ }
+ maxfr = 24;
+ } else if (frame->subclass == AST_FORMAT_SLINEAR) {
+ if (p->lastformat != AST_FORMAT_SLINEAR) {
+ ioctl(p->fd, IXJCTL_PLAY_STOP);
+ if (ioctl(p->fd, IXJCTL_PLAY_CODEC, LINEAR16)) {
+ ast_log(LOG_WARNING, "Unable to set 16-bit linear mode\n");
+ return -1;
+ }
+ p->lastformat = AST_FORMAT_SLINEAR;
+ /* Reset output buffer */
+ p->obuflen = 0;
+ }
+ maxfr = 480;
+ }
+ if (ioctl(p->fd, IXJCTL_PLAY_START)) {
+ ast_log(LOG_WARNING, "Failed to start recording\n");
+ return -1;
+ }
+ /* If we get here, we have a voice frame of Appropriate data */
+ sofar = 0;
+ pos = frame->data;
+ while(sofar < frame->datalen) {
+ /* Write in no more than maxfr sized frames */
+ expected = frame->datalen - sofar;
+ if (maxfr < expected)
+ expected = maxfr;
+ /* XXX Internet Phone Jack does not handle the 4-byte VAD frame properly! XXX */
+ if (frame->datalen != 4) {
+ res = ixj_write_buf(p, pos, expected, maxfr);
+ if (res != expected) {
+ if (res < 0)
+ ast_log(LOG_WARNING, "Write returned error (%s)\n", strerror(errno));
+ else
+ ast_log(LOG_WARNING, "Only wrote %d of %d bytes\n", res, frame->datalen);
+ return -1;
+ }
+ sofar += res;
+ pos += res;
+ } else
+ sofar += 4;
+ }
+ return 0;
+}
+
+static struct ast_channel *ixj_new(struct ixj_pvt *i, int state)
+{
+ struct ast_channel *tmp;
+ tmp = ast_channel_alloc();
+ if (tmp) {
+ snprintf(tmp->name, sizeof(tmp->name), "PhoneJack/%s", i->dev + 5);
+ tmp->type = type;
+ tmp->fd = i->fd;
+ /* XXX Switching formats silently causes kernel panics XXX */
+ tmp->format = AST_FORMAT_G723_1 /* | AST_FORMAT_SLINEAR */;
+ tmp->state = state;
+ if (state == AST_STATE_RING)
+ tmp->rings = 1;
+ tmp->pvt->pvt = i;
+ tmp->pvt->send_digit = ixj_digit;
+ tmp->pvt->call = ixj_call;
+ tmp->pvt->hangup = ixj_hangup;
+ tmp->pvt->answer = ixj_answer;
+ tmp->pvt->read = ixj_read;
+ tmp->pvt->write = ixj_write;
+ strncpy(tmp->context, i->context, sizeof(tmp->context));
+ if (strlen(i->ext))
+ strncpy(tmp->exten, i->ext, sizeof(tmp->exten));
+ i->owner = tmp;
+ pthread_mutex_lock(&usecnt_lock);
+ usecnt++;
+ pthread_mutex_unlock(&usecnt_lock);
+ ast_update_use_count();
+ if (state != AST_STATE_DOWN) {
+ if (state == AST_STATE_RING)
+ ioctl(tmp->fd, IXJCTL_RINGBACK);
+ if (ast_pbx_start(tmp)) {
+ ast_log(LOG_WARNING, "Unable to start PBX on %s\n", tmp->name);
+ ast_hangup(tmp);
+ }
+ }
+ } else
+ ast_log(LOG_WARNING, "Unable to allocate channel structure\n");
+ return tmp;
+}
+
+static void ixj_mini_packet(struct ixj_pvt *i)
+{
+ int res;
+ char buf[1024];
+ /* Ignore stuff we read... */
+ res = read(i->fd, buf, sizeof(buf));
+ if (res < 1) {
+ ast_log(LOG_WARNING, "Read returned %d\n", res);
+ return;
+ }
+}
+
+static void ixj_check_exception(struct ixj_pvt *i)
+{
+ int offhook=0;
+ char digit[2] = {0 , 0};
+ IXJ_EXCEPTION ixje;
+ /* XXX Do something XXX */
+#if 0
+ ast_log(LOG_DEBUG, "Exception!\n");
+#endif
+ ixje.bytes = ioctl(i->fd, IXJCTL_EXCEPTION);
+ if (ixje.bits.dtmf_ready) {
+ digit[0] = ioctl(i->fd, IXJCTL_GET_DTMF_ASCII);
+ if (i->mode == MODE_DIALTONE) {
+ ioctl(i->fd, IXJCTL_PLAY_STOP);
+ ioctl(i->fd, IXJCTL_REC_STOP);
+ ioctl(i->fd, IXJCTL_CPT_STOP);
+ i->dialtone = 0;
+ if (strlen(i->ext) < AST_MAX_EXTENSION - 1)
+ strcat(i->ext, digit);
+ if (ast_exists_extension(NULL, i->context, i->ext, 1)) {
+ /* It's a valid extension in its context, get moving! */
+ ixj_new(i, AST_STATE_UP);
+ /* No need to restart monitor, we are the monitor */
+ if (i->owner) {
+ ixj_setup(i->owner);
+ }
+ } else if (ast_exists_extension(NULL, "default", i->ext, 1)) {
+ /* Check the default, too... */
+ /* XXX This should probably be justified better XXX */
+ strncpy(i->context, "default", sizeof(i->context));
+ ixj_new(i, AST_STATE_UP);
+ if (i->owner) {
+ ixj_setup(i->owner);
+ }
+ } else if ((strlen(i->ext) >= ast_pbx_longest_extension(i->context)) &&
+ (strlen(i->ext) >= ast_pbx_longest_extension("default"))) {
+ /* It's not a valid extension, give a busy signal */
+ ioctl(i->fd, IXJCTL_BUSY);
+ }
+#if 0
+ ast_verbose("Extension is %s\n", i->ext);
+#endif
+ }
+ }
+ if (ixje.bits.hookstate) {
+ offhook = ioctl(i->fd, IXJCTL_HOOKSTATE);
+ if (offhook) {
+ if (i->mode == MODE_IMMEDIATE) {
+ ixj_new(i, AST_STATE_RING);
+ } else if (i->mode == MODE_DIALTONE) {
+#if 0
+ /* XXX Bug in the Phone jack, you can't detect DTMF when playing a tone XXX */
+ ioctl(i->fd, IXJCTL_DIALTONE);
+#else
+ /* Play the dialtone */
+ i->dialtone++;
+ ioctl(i->fd, IXJCTL_PLAY_STOP);
+ ioctl(i->fd, IXJCTL_PLAY_CODEC, ULAW);
+ ioctl(i->fd, IXJCTL_PLAY_START);
+#endif
+ }
+ } else {
+ memset(i->ext, 0, sizeof(i->ext));
+ ioctl(i->fd, IXJCTL_CPT_STOP);
+ ioctl(i->fd, IXJCTL_PLAY_STOP);
+ ioctl(i->fd, IXJCTL_REC_STOP);
+ i->dialtone = 0;
+ }
+ }
+ if (ixje.bits.pstn_ring)
+ ast_verbose("Unit is ringing\n");
+ if (ixje.bits.caller_id)
+ ast_verbose("We have caller ID\n");
+
+
+}
+
+static void *do_monitor(void *data)
+{
+ fd_set rfds, efds;
+ int n, res;
+ struct ixj_pvt *i;
+ int tonepos = 0;
+ /* The tone we're playing this round */
+ struct timeval tv = {0,0};
+ int dotone;
+ /* This thread monitors all the frame relay interfaces which are not yet in use
+ (and thus do not have a separate thread) indefinitely */
+ /* From here on out, we die whenever asked */
+ if (pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, NULL)) {
+ ast_log(LOG_WARNING, "Unable to set cancel type to asynchronous\n");
+ return NULL;
+ }
+ for(;;) {
+ /* Don't let anybody kill us right away. Nobody should lock the interface list
+ and wait for the monitor list, but the other way around is okay. */
+ if (pthread_mutex_lock(&monlock)) {
+ ast_log(LOG_ERROR, "Unable to grab monitor lock\n");
+ return NULL;
+ }
+ /* Lock the interface list */
+ if (pthread_mutex_lock(&iflock)) {
+ ast_log(LOG_ERROR, "Unable to grab interface lock\n");
+ pthread_mutex_unlock(&monlock);
+ return NULL;
+ }
+ /* Build the stuff we're going to select on, that is the socket of every
+ ixj_pvt that does not have an associated owner channel */
+ n = -1;
+ FD_ZERO(&rfds);
+ FD_ZERO(&efds);
+ i = iflist;
+ dotone = 0;
+ while(i) {
+ if (FD_ISSET(i->fd, &rfds))
+ ast_log(LOG_WARNING, "Descriptor %d appears twice (%s)?\n", i->fd, i->dev);
+ if (!i->owner) {
+ /* This needs to be watched, as it lacks an owner */
+ FD_SET(i->fd, &rfds);
+ FD_SET(i->fd, &efds);
+ if (i->fd > n)
+ n = i->fd;
+ if (i->dialtone) {
+ /* Remember we're going to have to come back and play
+ more dialtones */
+ if (!tv.tv_usec && !tv.tv_sec) {
+ /* If we're due for a dialtone, play one */
+ if (write(i->fd, DialTone + tonepos, 240) != 240)
+ ast_log(LOG_WARNING, "Dial tone write error\n");
+ }
+ dotone++;
+ }
+ }
+
+ i = i->next;
+ }
+ /* Okay, now that we know what to do, release the interface lock */
+ pthread_mutex_unlock(&iflock);
+
+ /* And from now on, we're okay to be killed, so release the monitor lock as well */
+ pthread_mutex_unlock(&monlock);
+ /* Wait indefinitely for something to happen */
+ if (dotone) {
+ /* If we're ready to recycle the time, set it to 30 ms */
+ tonepos += 240;
+ if (tonepos >= sizeof(DialTone))
+ tonepos = 0;
+ if (!tv.tv_usec && !tv.tv_sec) {
+ tv.tv_usec = 30000;
+ tv.tv_sec = 0;
+ }
+ res = select(n + 1, &rfds, NULL, &efds, &tv);
+ } else {
+ res = select(n + 1, &rfds, NULL, &efds, NULL);
+ tv.tv_usec = 0;
+ tv.tv_sec = 0;
+ tonepos = 0;
+ }
+ /* Okay, select has finished. Let's see what happened. */
+ if (res < 0) {
+ ast_log(LOG_WARNING, "select return %d: %s\n", res, strerror(errno));
+ continue;
+ }
+ /* If there are no fd's changed, just continue, it's probably time
+ to play some more dialtones */
+ if (!res)
+ continue;
+ /* Alright, lock the interface list again, and let's look and see what has
+ happened */
+ if (pthread_mutex_lock(&iflock)) {
+ ast_log(LOG_WARNING, "Unable to lock the interface list\n");
+ continue;
+ }
+ i = iflist;
+ while(i) {
+ if (FD_ISSET(i->fd, &rfds)) {
+ if (i->owner) {
+ ast_log(LOG_WARNING, "Whoa.... I'm owned but found (%d, %s)...\n", i->fd, i->dev);
+ continue;
+ }
+ ixj_mini_packet(i);
+ }
+ if (FD_ISSET(i->fd, &efds)) {
+ if (i->owner) {
+ ast_log(LOG_WARNING, "Whoa.... I'm owned but found (%d, %s)...\n", i->fd, i->dev);
+ continue;
+ }
+ ixj_check_exception(i);
+ }
+ i=i->next;
+ }
+ pthread_mutex_unlock(&iflock);
+ }
+ /* Never reached */
+ return NULL;
+
+}
+
+static int restart_monitor()
+{
+ /* If we're supposed to be stopped -- stay stopped */
+ if (monitor_thread == -2)
+ return 0;
+ if (pthread_mutex_lock(&monlock)) {
+ ast_log(LOG_WARNING, "Unable to lock monitor\n");
+ return -1;
+ }
+ if (monitor_thread == pthread_self()) {
+ pthread_mutex_unlock(&monlock);
+ ast_log(LOG_WARNING, "Cannot kill myself\n");
+ return -1;
+ }
+ if (monitor_thread != -1) {
+ pthread_cancel(monitor_thread);
+#if 0
+ pthread_join(monitor_thread, NULL);
+#endif
+ }
+ /* Start a new monitor */
+ if (pthread_create(&monitor_thread, NULL, do_monitor, NULL) < 0) {
+ pthread_mutex_unlock(&monlock);
+ ast_log(LOG_ERROR, "Unable to start monitor thread.\n");
+ return -1;
+ }
+ pthread_mutex_unlock(&monlock);
+ return 0;
+}
+
+struct ixj_pvt *mkif(char *iface, int mode)
+{
+ /* Make a ixj_pvt structure for this interface */
+ struct ixj_pvt *tmp;
+ int flags;
+
+ tmp = malloc(sizeof(struct ixj_pvt));
+ if (tmp) {
+ tmp->fd = open(iface, O_RDWR);
+ if (tmp->fd < 0) {
+ ast_log(LOG_WARNING, "Unable to open '%s'\n", iface);
+ free(tmp);
+ return NULL;
+ }
+ ioctl(tmp->fd, IXJCTL_PLAY_STOP);
+ ioctl(tmp->fd, IXJCTL_REC_STOP);
+ ioctl(tmp->fd, IXJCTL_RING_STOP);
+ ioctl(tmp->fd, IXJCTL_CPT_STOP);
+ tmp->mode = mode;
+ flags = fcntl(tmp->fd, F_GETFL);
+ fcntl(tmp->fd, F_SETFL, flags | O_NONBLOCK);
+ tmp->owner = NULL;
+ tmp->lastformat = -1;
+ tmp->lastinput = -1;
+ tmp->ministate = 0;
+ memset(tmp->ext, 0, sizeof(tmp->ext));
+ strncpy(tmp->dev, iface, sizeof(tmp->dev));
+ strncpy(tmp->context, context, sizeof(tmp->context));
+ tmp->next = NULL;
+ tmp->obuflen = 0;
+ tmp->dialtone = 0;
+ }
+ return tmp;
+}
+
+static struct ast_channel *ixj_request(char *type, int format, void *data)
+{
+ int oldformat;
+ struct ixj_pvt *p;
+ struct ast_channel *tmp = NULL;
+ char *name = data;
+
+ oldformat = format;
+ format &= (AST_FORMAT_G723_1 | AST_FORMAT_SLINEAR);
+ if (!format) {
+ ast_log(LOG_NOTICE, "Asked to get a channel of unsupported format '%d'\n", oldformat);
+ return NULL;
+ }
+ /* Search for an unowned channel */
+ if (pthread_mutex_lock(&iflock)) {
+ ast_log(LOG_ERROR, "Unable to lock interface list???\n");
+ return NULL;
+ }
+ p = iflist;
+ while(p) {
+ if (!strcmp(name, p->dev + 5)) {
+ if (!p->owner) {
+ tmp = ixj_new(p, AST_STATE_DOWN);
+ break;
+ }
+ }
+ p = p->next;
+ }
+ pthread_mutex_unlock(&iflock);
+ restart_monitor();
+ return tmp;
+}
+
+int load_module()
+{
+ struct ast_config *cfg;
+ struct ast_variable *v;
+ struct ixj_pvt *tmp;
+ int mode = MODE_IMMEDIATE;
+ cfg = ast_load(config);
+
+ /* We *must* have a config file otherwise stop immediately */
+ if (!cfg) {
+ ast_log(LOG_ERROR, "Unable to load config %s\n", config);
+ return -1;
+ }
+ if (pthread_mutex_lock(&iflock)) {
+ /* It's a little silly to lock it, but we mind as well just to be sure */
+ ast_log(LOG_ERROR, "Unable to lock interface list???\n");
+ return -1;
+ }
+ v = ast_variable_browse(cfg, "interfaces");
+ while(v) {
+ /* Create the interface list */
+ if (!strcasecmp(v->name, "device")) {
+ tmp = mkif(v->value, mode);
+ if (tmp) {
+ tmp->next = iflist;
+ iflist = tmp;
+
+ } else {
+ ast_log(LOG_ERROR, "Unable to register channel '%s'\n", v->value);
+ ast_destroy(cfg);
+ pthread_mutex_unlock(&iflock);
+ unload_module();
+ return -1;
+ }
+ } else if (!strcasecmp(v->name, "mode")) {
+ if (!strncasecmp(v->value, "di", 2))
+ mode = MODE_DIALTONE;
+ else if (!strncasecmp(v->value, "im", 2))
+ mode = MODE_IMMEDIATE;
+ else
+ ast_log(LOG_WARNING, "Unknown mode: %s\n", v->value);
+ } else if (!strcasecmp(v->name, "context")) {
+ strncpy(context, v->value, sizeof(context));
+ }
+ v = v->next;
+ }
+ pthread_mutex_unlock(&iflock);
+ /* Make sure we can register our Adtranixj channel type */
+ if (ast_channel_register(type, tdesc, AST_FORMAT_G723_1, ixj_request)) {
+ ast_log(LOG_ERROR, "Unable to register channel class %s\n", type);
+ ast_destroy(cfg);
+ unload_module();
+ return -1;
+ }
+ ast_destroy(cfg);
+ /* And start the monitor for the first time */
+ restart_monitor();
+ return 0;
+}
+
+
+
+int unload_module()
+{
+ struct ixj_pvt *p, *pl;
+ /* First, take us out of the channel loop */
+ ast_channel_unregister(type);
+ if (!pthread_mutex_lock(&iflock)) {
+ /* Hangup all interfaces if they have an owner */
+ p = iflist;
+ while(p) {
+ if (p->owner)
+ ast_softhangup(p->owner);
+ p = p->next;
+ }
+ iflist = NULL;
+ pthread_mutex_unlock(&iflock);
+ } else {
+ ast_log(LOG_WARNING, "Unable to lock the monitor\n");
+ return -1;
+ }
+ if (!pthread_mutex_lock(&monlock)) {
+ if (monitor_thread > -1) {
+ pthread_cancel(monitor_thread);
+ pthread_join(monitor_thread, NULL);
+ }
+ monitor_thread = -2;
+ pthread_mutex_unlock(&monlock);
+ } else {
+ ast_log(LOG_WARNING, "Unable to lock the monitor\n");
+ return -1;
+ }
+
+ if (!pthread_mutex_lock(&iflock)) {
+ /* Destroy all the interfaces and free their memory */
+ p = iflist;
+ while(p) {
+ /* Close the socket, assuming it's real */
+ if (p->fd > -1)
+ close(p->fd);
+ pl = p;
+ p = p->next;
+ /* Free associated memory */
+ free(pl);
+ }
+ iflist = NULL;
+ pthread_mutex_unlock(&iflock);
+ } else {
+ ast_log(LOG_WARNING, "Unable to lock the monitor\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+int usecount()
+{
+ int res;
+ pthread_mutex_lock(&usecnt_lock);
+ res = usecnt;
+ pthread_mutex_unlock(&usecnt_lock);
+ return res;
+}
+
+char *description()
+{
+ return desc;
+}
+