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3 Commits
0.6.0 ... 0.3.1

Author SHA1 Message Date
Kevin P. Fleming
9f2922012a remove extraneous svn:executable properties
git-svn-id: https://origsvn.digium.com/svn/libpri/tags/0.3.1@266 2fbb986a-6c06-0410-b554-c9c1f0a7f128
2005-11-29 18:39:18 +00:00
Kevin P. Fleming
933c3bcf00 automatic tag renames
git-svn-id: https://origsvn.digium.com/svn/libpri/tags/0.3.1@263 2fbb986a-6c06-0410-b554-c9c1f0a7f128
2005-11-27 04:17:23 +00:00
Admin Commit
b28a58c1ac This commit was manufactured by cvs2svn to create tag 'v0-3-1'.
git-svn-id: https://origsvn.digium.com/svn/libpri/tags/v0-3-1@28 2fbb986a-6c06-0410-b554-c9c1f0a7f128
2002-04-25 03:51:36 +00:00
12 changed files with 322 additions and 1839 deletions

View File

@@ -20,58 +20,30 @@
# along with this program; if not, write to the Free Software
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
#
#
# Uncomment if you want libpri not send PROGRESS_INDICATOR w/ALERTING
#ALERTING=-DALERTING_NO_PROGRESS
# Uncomment if you want libpri to count number of Q921/Q931 sent/received
#LIBPRI_COUNTERS=-DLIBPRI_COUNTERS
TOBJS=testpri.o
T2OBJS=testprilib.o
STATIC_LIBRARY=libpri.a
DYNAMIC_LIBRARY=libpri.so.1.0
STATIC_OBJS=pri.o q921.o prisched.o q931.o
DYNAMIC_OBJS=pri.lo q921.lo prisched.lo q931.lo
CFLAGS=-Wall -Werror -Wstrict-prototypes -Wmissing-prototypes -g $(ALERTING) $(LIBPRI_COUNTERS)
INSTALL_PREFIX=
CFLAGS=-Wall -Werror -Wstrict-prototypes -Wmissing-prototypes -g
all: depend $(STATIC_LIBRARY) $(DYNAMIC_LIBRARY)
update:
@echo "Updating from CVS"
@cvs update -d
all: $(STATIC_LIBRARY) $(DYNAMIC_LIBRARY)
install: $(STATIC_LIBRARY) $(DYNAMIC_LIBRARY)
mkdir -p $(INSTALL_PREFIX)/usr/lib
mkdir -p $(INSTALL_PREFIX)/usr/include
install -m 644 libpri.h $(INSTALL_PREFIX)/usr/include
install -m 755 $(DYNAMIC_LIBRARY) $(INSTALL_PREFIX)/usr/lib
( cd $(INSTALL_PREFIX)/usr/lib ; ln -sf libpri.so.1 libpri.so )
install -m 644 $(STATIC_LIBRARY) $(INSTALL_PREFIX)/usr/lib
mkdir -p /usr/lib
mkdir -p /usr/include
install -m 644 libpri.h /usr/include
install -m 755 $(DYNAMIC_LIBRARY) /usr/lib
( cd /usr/lib ; ln -sf libpri.so.1 libpri.so )
install -m 644 $(STATIC_LIBRARY) /usr/lib
/sbin/ldconfig
uninstall:
@echo "Removing Libpri"
rm -f $(INSTALL_PREFIX)/usr/lib/libpri.so.1.0
rm -f $(INSTALL_PREFIX)/usr/lib/libpri.so
rm -f $(INSTALL_PREFIX)/usr/lib/libpri.a
rm -f $(INSTALL_PREFIX)/usr/include/libpri.h
pritest: pritest.o
$(CC) -o pritest pritest.o -L. -lpri -lzap
testprilib.o: testprilib.c
$(CC) $(CFLAGS) -D_REENTRANT -D_GNU_SOURCE -o $@ -c $<
testprilib: testprilib.o
$(CC) -o testprilib testprilib.o -L. -lpri -lpthread
pridump: pridump.o
$(CC) -o pridump pridump.o -L. -lpri -lzap
include .depend
%.lo : %.c
$(CC) -fPIC $(CFLAGS) -o $@ -c $<
@@ -85,12 +57,6 @@ $(DYNAMIC_LIBRARY): $(DYNAMIC_OBJS)
ln -sf libpri.so.1 libpri.so
clean:
rm -f *.o *.so *.lo *.so.1 *.so.1.0
rm -f testpri testprilib $(STATIC_LIBRARY) $(DYNAMIC_LIBRARY)
rm -f *.o *.so *.lo
rm -f testpri $(STATIC_LIBRARY) $(DYNAMIC_LIBRARY)
rm -f pritest pridump
rm -f .depend
depend: .depend
.depend:
./mkdep ${CFLAGS} `ls *.c`

View File

@@ -48,7 +48,6 @@
#define PRI_SWITCH_ATT4ESS 4 /* AT&T 4ESS */
#define PRI_SWITCH_EUROISDN_E1 5 /* Standard EuroISDN (CTR4, ETSI 300-102) */
#define PRI_SWITCH_EUROISDN_T1 6 /* T1 EuroISDN variant (ETSI 300-102) */
#define PRI_SWITCH_NI1 7 /* National ISDN 1 */
/* PRI D-Channel Events */
#define PRI_EVENT_DCHAN_UP 1 /* D-channel is up */
@@ -61,11 +60,6 @@
#define PRI_EVENT_ANSWER 8 /* Call has been answered */
#define PRI_EVENT_HANGUP_ACK 9 /* Call hangup has been acknowledged */
#define PRI_EVENT_RESTART_ACK 10 /* Restart complete on a given channel */
#define PRI_EVENT_FACNAME 11 /* Caller*ID Name received on Facility */
#define PRI_EVENT_INFO_RECEIVED 12 /* Additional info (keypad) received */
#define PRI_EVENT_PROCEEDING 13 /* When we get CALL_PROCEEDING or PROGRESS */
#define PRI_EVENT_SETUP_ACK 14 /* When we get SETUP_ACKNOWLEDGE */
#define PRI_EVENT_HANGUP_REQ 15 /* Requesting the higher layer to hangup */
/* Simple states */
#define PRI_STATE_DOWN 0
@@ -180,8 +174,6 @@
#define PRI_LAYER_1_V120_RATE_ADAPT 0x28
#define PRI_LAYER_1_X31_RATE_ADAPT 0x29
#define PRI_COPY_DIGITS_CALLED_NUMBER
typedef struct q931_call q931_call;
typedef struct pri_event_generic {
@@ -213,31 +205,18 @@ typedef struct pri_event_answer {
q931_call *call;
} pri_event_answer;
typedef struct pri_event_facname {
int e;
char callingname[256];
char callingnum[256];
int channel;
int cref;
q931_call *call;
} pri_event_facname;
typedef struct pri_event_ring {
int e;
int channel; /* Channel requested */
int callingpres; /* Presentation of Calling CallerID */
int callingplan; /* Dialing plan of Calling entity */
char callingnum[256]; /* Calling number */
char callingname[256]; /* Calling name (if provided) */
int calledplan; /* Dialing plan of Called number */
char callednum[256]; /* Called number */
char redirectingnum[256]; /* Redirecting number */
char useruserinfo[256]; /* User->User info */
int flexible; /* Are we flexible with our channel selection? */
int cref; /* Call Reference Number */
int ctype; /* Call type (see PRI_TRANS_CAP_* */
int layer1; /* User layer 1 */
int complete; /* Have we seen "Complete" i.e. no more number? */
q931_call *call; /* Opaque call pointer */
} pri_event_ring;
@@ -254,29 +233,16 @@ typedef struct pri_event_restart_ack {
int channel;
} pri_event_restart_ack;
typedef struct pri_event_proceeding {
int e;
int channel;
} pri_event_proceeding;
typedef struct pri_event_setup_ack {
int e;
int channel;
} pri_event_setup_ack;
typedef union {
int e;
pri_event_generic gen; /* Generic view */
pri_event_restart restart; /* Restart view */
pri_event_error err; /* Error view */
pri_event_facname facname; /* Caller*ID Name on Facility */
pri_event_ring ring; /* Ring */
pri_event_hangup hangup; /* Hang up */
pri_event_ringing ringing; /* Ringing */
pri_event_ringing answer; /* Answer */
pri_event_restart_ack restartack; /* Restart Acknowledge */
pri_event_proceeding proceeding; /* Call proceeding & Progress */
pri_event_setup_ack setup_ack; /* SETUP_ACKNOWLEDGE structure */
} pri_event;
struct pri;
@@ -327,42 +293,15 @@ extern char *pri_cause2str(int cause);
is in-band data available on the channel */
extern int pri_acknowledge(struct pri *pri, q931_call *call, int channel, int info);
/* Send a digit in overlap mode */
extern int pri_information(struct pri *pri, q931_call *call, char digit);
/* Answer the incomplete(call without called number) call on the given channel.
Set non-isdn to non-zero if you are not connecting to ISDN equipment */
extern int pri_need_more_info(struct pri *pri, q931_call *call, int channel, int nonisdn);
/* Answer the call on the given channel (ignored if you called acknowledge already).
Set non-isdn to non-zero if you are not connecting to ISDN equipment */
extern int pri_answer(struct pri *pri, q931_call *call, int channel, int nonisdn);
#if 0
/* deprecated routines, use pri_hangup */
/* Release/Reject a call */
extern int pri_release(struct pri *pri, q931_call *call, int cause);
/* Hangup / Disconnect a call */
extern int pri_disconnect(struct pri *pri, q931_call *call, int cause);
#endif
#undef pri_release
#undef pri_disconnect
/* backwards compatibility for those who don't use asterisk with libpri */
#define pri_release(a,b,c) \
pri_hangup(a,b,c)
#define pri_disconnect(a,b,c) \
pri_hangup(a,b,c)
/* Hangup a call */
#define PRI_HANGUP
extern int pri_hangup(struct pri *pri, q931_call *call, int cause);
#define PRI_DESTROYCALL
extern void pri_destroycall(struct pri *pri, q931_call *call);
extern int pri_reset(struct pri *pri, int channel);
@@ -376,21 +315,6 @@ extern struct timeval *pri_schedule_next(struct pri *pri);
extern pri_event *pri_schedule_run(struct pri *pri);
extern int pri_call(struct pri *pri, q931_call *c, int transmode, int channel,
int exclusive, int nonisdn, char *caller, int callerplan, char *callername, int callerpres,
int exclusive, int nonisdn, char *caller, int callerplan, int callerpres,
char *called,int calledplan, int ulayer1);
/* Override message and error stuff */
extern void pri_set_message(void (*__pri_error)(char *));
extern void pri_set_error(void (*__pri_error)(char *));
/* Set overlap mode */
#define PRI_SET_OVERLAPDIAL
extern void pri_set_overlapdial(struct pri *pri,int state);
#define PRI_DUMP_INFO
extern void pri_dump_info(struct pri *pri);
/* Get file descriptor */
extern int pri_fd(struct pri *pri);
#endif

113
mkdep
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@@ -1,113 +0,0 @@
#!/bin/sh -
#
# $OpenBSD: mkdep.gcc.sh,v 1.8 1998/09/02 06:40:07 deraadt Exp $
# $NetBSD: mkdep.gcc.sh,v 1.9 1994/12/23 07:34:59 jtc Exp $
#
# Copyright (c) 1991, 1993
# The Regents of the University of California. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# 3. All advertising materials mentioning features or use of this software
# must display the following acknowledgement:
# This product includes software developed by the University of
# California, Berkeley and its contributors.
# 4. Neither the name of the University nor the names of its contributors
# may be used to endorse or promote products derived from this software
# without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
# @(#)mkdep.gcc.sh 8.1 (Berkeley) 6/6/93
#
D=.depend # default dependency file is .depend
append=0
pflag=
while :
do case "$1" in
# -a appends to the depend file
-a)
append=1
shift ;;
# -f allows you to select a makefile name
-f)
D=$2
shift; shift ;;
# the -p flag produces "program: program.c" style dependencies
# so .o's don't get produced
-p)
pflag=p
shift ;;
*)
break ;;
esac
done
if [ $# = 0 ] ; then
echo 'usage: mkdep [-p] [-f depend_file] [cc_flags] file ...'
exit 1
fi
DTMP=/tmp/mkdep$$
TMP=$DTMP/mkdep
um=`umask`
umask 022
if ! mkdir $DTMP ; then
echo failed to create tmp dir $DTMP
exit 1
fi
umask $um
trap 'rm -rf $DTMP ; trap 2 ; kill -2 $$' 1 2 3 13 15
if [ x$pflag = x ]; then
${CC:-cc} -M "$@" | sed -e 's; \./; ;g' > $TMP
else
${CC:-cc} -M "$@" | sed -e 's;\.o :; :;' -e 's; \./; ;g' > $TMP
fi
if [ $? != 0 ]; then
echo 'mkdep: compile failed.'
rm -rf $DTMP
exit 1
fi
if [ $append = 1 ]; then
cat $TMP >> $D
if [ $? != 0 ]; then
echo 'mkdep: append failed.'
rm -rf $DTMP
exit 1
fi
else
mv $TMP $D
if [ $? != 0 ]; then
echo 'mkdep: rename failed.'
rm -rf $DTMP
exit 1
fi
fi
rm -rf $DTMP
exit 0

156
pri.c
View File

@@ -18,7 +18,6 @@
#include <unistd.h>
#include <stdlib.h>
#include <sys/select.h>
#include <stdarg.h>
#include "libpri.h"
#include "pri_internal.h"
#include "pri_q921.h"
@@ -49,10 +48,6 @@ char *pri_switch2str(int sw)
return "Lucent 5E";
case PRI_SWITCH_ATT4ESS:
return "AT&T 4ESS";
case PRI_SWITCH_NI1:
return "National ISDN 1";
case PRI_SWITCH_EUROISDN_E1:
return "EuroISDN";
default:
return "Unknown switchtype";
}
@@ -68,14 +63,8 @@ struct pri *pri_new(int fd, int node, int switchtype)
p->localtype = node;
p->switchtype = switchtype;
p->cref = 1;
#ifdef LIBPRI_COUNTERS
p->q921_rxcount = 0;
p->q921_txcount = 0;
p->q931_rxcount = 0;
p->q931_txcount = 0;
#endif
/* Start Q.921 layer, Wait if we're the network */
q921_start(p, p->localtype == PRI_CPE);
/* Start Q.921 layer */
q921_start(p);
}
return p;
}
@@ -106,11 +95,9 @@ pri_event *pri_check_event(struct pri *pri)
res = read(pri->fd, buf, sizeof(buf));
if (res < 0) {
if (errno != EAGAIN)
pri_error("Read on %d failed: %s\n", pri->fd, strerror(errno));
fprintf(stderr, "Read on %d failed: %s\n", pri->fd, strerror(errno));
return NULL;
}
if (!res)
return NULL;
/* Receive the q921 packet */
e = q921_receive(pri, (q921_h *)buf, res);
return e;
@@ -191,27 +178,6 @@ int pri_acknowledge(struct pri *pri, q931_call *call, int channel, int info)
return q931_alerting(pri, call, channel, info);
}
int pri_information(struct pri *pri, q931_call *call, char digit)
{
if (!pri || !call)
return -1;
return q931_information(pri, call, digit);
}
void pri_destroycall(struct pri *pri, q931_call *call)
{
if (pri && call)
__q931_destroycall(pri, call);
return;
}
int pri_need_more_info(struct pri *pri, q931_call *call, int channel, int nonisdn)
{
if (!pri || !call)
return -1;
return q931_setup_ack(pri, call, channel, nonisdn);
}
int pri_answer(struct pri *pri, q931_call *call, int channel, int nonisdn)
{
if (!pri || !call)
@@ -219,8 +185,6 @@ int pri_answer(struct pri *pri, q931_call *call, int channel, int nonisdn)
return q931_connect(pri, call, channel, nonisdn);
}
#if 0
/* deprecated routines, use pri_hangup */
int pri_release(struct pri *pri, q931_call *call, int cause)
{
if (!pri || !call)
@@ -234,17 +198,6 @@ int pri_disconnect(struct pri *pri, q931_call *call, int cause)
return -1;
return q931_disconnect(pri, call, cause);
}
#endif
int pri_hangup(struct pri *pri, q931_call *call, int cause)
{
if (!pri || !call)
return -1;
if (cause == -1)
/* normal clear cause */
cause = 16;
return q931_hangup(pri, call, cause);
}
int pri_reset(struct pri *pri, int channel)
{
@@ -264,117 +217,34 @@ void pri_dump_event(struct pri *pri, pri_event *e)
{
if (!pri || !e)
return;
pri_message("Event type: %s (%d)\n", pri_event2str(e->gen.e), e->gen.e);
printf("Event type: %s (%d)\n", pri_event2str(e->gen.e), e->gen.e);
switch(e->gen.e) {
case PRI_EVENT_DCHAN_UP:
case PRI_EVENT_DCHAN_DOWN:
break;
case PRI_EVENT_CONFIG_ERR:
pri_message("Error: %s", e->err.err);
printf("Error: %s", e->err.err);
break;
case PRI_EVENT_RESTART:
pri_message("Restart on channel %d\n", e->restart.channel);
printf("Restart on channel %d\n", e->restart.channel);
case PRI_EVENT_RING:
pri_message("Calling number: %s (%s, %s)\n", e->ring.callingnum, pri_plan2str(e->ring.callingplan), pri_pres2str(e->ring.callingpres));
pri_message("Called number: %s (%s)\n", e->ring.callednum, pri_plan2str(e->ring.calledplan));
pri_message("Channel: %d (%s) Reference number: %d\n", e->ring.channel, e->ring.flexible ? "Flexible" : "Not Flexible", e->ring.cref);
printf("Calling number: %s (%s, %s)\n", e->ring.callingnum, pri_plan2str(e->ring.callingplan), pri_pres2str(e->ring.callingpres));
printf("Called number: %s (%s)\n", e->ring.callednum, pri_plan2str(e->ring.calledplan));
printf("Channel: %d (%s) Reference number: %d\n", e->ring.channel, e->ring.flexible ? "Flexible" : "Not Flexible", e->ring.cref);
break;
case PRI_EVENT_HANGUP:
pri_message("Hangup, reference number: %d, reason: %s\n", e->hangup.cref, pri_cause2str(e->hangup.cause));
printf("Hangup, reference number: %d, reason: %s\n", e->hangup.cref, pri_cause2str(e->hangup.cause));
break;
default:
pri_message("Don't know how to dump events of type %d\n", e->gen.e);
printf("Don't know how to dump events of type %d\n", e->gen.e);
}
}
int pri_call(struct pri *pri, q931_call *c, int transmode, int channel, int exclusive,
int nonisdn, char *caller, int callerplan, char *callername, int callerpres, char *called,
int nonisdn, char *caller, int callerplan, int callerpres, char *called,
int calledplan,int ulayer1)
{
if (!pri || !c)
return -1;
return q931_setup(pri, c, transmode, channel, exclusive, nonisdn, caller, callerplan, callername, callerpres, called, calledplan, ulayer1);
return q931_setup(pri, c, transmode, channel, exclusive, nonisdn, caller, callerplan, callerpres, called, calledplan, ulayer1);
}
static void (*__pri_error)(char *stuff);
static void (*__pri_message)(char *stuff);
void pri_set_message(void (*func)(char *stuff))
{
__pri_message = func;
}
void pri_set_error(void (*func)(char *stuff))
{
__pri_error = func;
}
void pri_message(char *fmt, ...)
{
char tmp[1024];
va_list ap;
va_start(ap, fmt);
vsnprintf(tmp, sizeof(tmp), fmt, ap);
va_end(ap);
if (__pri_message)
__pri_message(tmp);
else
fprintf(stdout, tmp);
}
void pri_error(char *fmt, ...)
{
char tmp[1024];
va_list ap;
va_start(ap, fmt);
vsnprintf(tmp, sizeof(tmp), fmt, ap);
va_end(ap);
if (__pri_error)
__pri_error(tmp);
else
fprintf(stderr, tmp);
}
/* Set overlap mode */
void pri_set_overlapdial(struct pri *pri,int state)
{
pri->overlapdial = state;
}
int pri_fd(struct pri *pri)
{
return pri->fd;
}
void pri_dump_info(struct pri *pri)
{
#ifdef LIBPRI_COUNTERS
struct q921_frame *f;
int q921outstanding = 0;
#endif
if (!pri)
return;
/* Might be nice to format these a little better */
pri_message("Switchtype: %s\n", pri_switch2str(pri->switchtype));
pri_message("Type: %s\n", pri_node2str(pri->localtype));
#ifdef LIBPRI_COUNTERS
/* Remember that Q921 Counters include Q931 packets (and any retransmissions) */
pri_message("Q931 RX: %d\n", pri->q931_rxcount);
pri_message("Q931 TX: %d\n", pri->q931_txcount);
pri_message("Q921 RX: %d\n", pri->q921_rxcount);
pri_message("Q921 TX: %d\n", pri->q921_txcount);
f = pri->txqueue;
while (f) {
q921outstanding++;
f = f->next;
}
pri_message("Q921 Outstanding: %d\n", q921outstanding);
#endif
pri_message("Window Length: %d/%d\n", pri->windowlen, pri->window);
pri_message("Sentrej: %d\n", pri->sentrej);
pri_message("SolicitFbit: %d\n", pri->solicitfbit);
pri_message("Retrans: %d\n", pri->retrans);
pri_message("Busy: %d\n", pri->busy);
pri_message("Overlap Dial: %d\n", pri->overlapdial);
}

View File

@@ -52,14 +52,12 @@ struct pri {
/* Q.921 State */
int q921_state;
int window; /* Max window size */
int windowlen; /* Fullness of window */
int v_s; /* Next N(S) for transmission */
int v_a; /* Last acknowledged frame */
int v_r; /* Next frame expected to be received */
int v_na; /* What we've told our peer we've acknowledged */
int solicitfbit; /* Have we sent an I or S frame with the F-bit set? */
int retrans; /* Retransmissions */
int sentrej; /* Are we in reject state */
int cref; /* Next call reference value */
@@ -80,17 +78,6 @@ struct pri {
/* Q.931 calls */
q931_call *calls;
/* do we do overlap dialing */
int overlapdial;
#ifdef LIBPRI_COUNTERS
/* q921/q931 packet counters */
unsigned int q921_txcount;
unsigned int q921_rxcount;
unsigned int q931_txcount;
unsigned int q931_rxcount;
#endif
};
extern int pri_schedule_event(struct pri *pri, int ms, void (*function)(void *data), void *data);
@@ -101,8 +88,4 @@ extern void pri_schedule_del(struct pri *pri, int ev);
extern pri_event *pri_mkerror(struct pri *pri, char *errstr);
extern void pri_message(char *fmt, ...);
extern void pri_error(char *fmt, ...);
#endif

View File

@@ -134,11 +134,10 @@ typedef union {
typedef struct q921_frame {
struct q921_frame *next; /* Next in list */
int len; /* Length of header + body */
int transmitted; /* Have we been transmitted */
q921_i h;
} q921_frame;
#define Q921_INC(j) (j) = (((j) + 1) % 128)
#define Q921_INC(j) (j) = ((j) + 1) % 128
typedef enum q921_state {
Q921_LINK_CONNECTION_RELEASED, /* Also known as TEI_ASSIGNED */
@@ -151,7 +150,7 @@ typedef enum q921_state {
extern void q921_dump(q921_h *h, int len, int showraw, int txrx);
/* Bring up the D-channel */
extern void q921_start(struct pri *pri, int now);
extern void q921_start(struct pri *pri);
extern void q921_reset(struct pri *pri);

View File

@@ -190,7 +190,6 @@ typedef struct q931_ie {
#define Q931_LOW_LAYER_COMPAT 0x7c
#define Q931_HIGH_LAYER_COMPAT 0x7d
#define Q931_DISPLAY 0x28
#define Q931_IE_SEGMENTED_MSG 0x00
#define Q931_IE_CHANGE_STATUS 0x01
#define Q931_IE_CONNECTED_NUM 0x0C
@@ -198,6 +197,7 @@ typedef struct q931_ie {
#define Q931_IE_FACILITY 0x1c
#define Q931_IE_ENDPOINT_ID 0x26
#define Q931_IE_NOTIFY_IND 0x27
#define Q931_IE_DISPLAY 0x28
#define Q931_IE_TIME_DATE 0x29
#define Q931_IE_KEYPAD_FACILITY 0x2c
#define Q931_IE_CALL_STATUS 0x2d
@@ -214,28 +214,6 @@ typedef struct q931_ie {
#define Q931_IE_USER_USER 0x7E
#define Q931_IE_ESCAPE_FOR_EXT 0x7F
/* Call state stuff */
#define Q931_CALL_STATE_NULL 0
#define Q931_CALL_STATE_CALL_INITIATED 1
#define Q931_CALL_STATE_OVERLAP_SENDING 2
#define Q931_CALL_STATE_OUTGOING_CALL_PROCEEDING 3
#define Q931_CALL_STATE_CALL_DELIVERED 4
#define Q931_CALL_STATE_CALL_PRESENT 6
#define Q931_CALL_STATE_CALL_RECEIVED 7
#define Q931_CALL_STATE_CONNECT_REQUEST 8
#define Q931_CALL_STATE_INCOMING_CALL_PROCEEDING 9
#define Q931_CALL_STATE_ACTIVE 10
#define Q931_CALL_STATE_DISCONNECT_REQUEST 11
#define Q931_CALL_STATE_DISCONNECT_INDICATION 12
#define Q931_CALL_STATE_SUSPEND_REQUEST 15
#define Q931_CALL_STATE_RESUME_REQUEST 17
#define Q931_CALL_STATE_RELEASE_REQUEST 19
#define Q931_CALL_STATE_OVERLAP_RECEIVING 25
#define Q931_CALL_STATE_RESTART_REQUEST 61
#define Q931_CALL_STATE_RESTART 62
/* EuroISDN */
#define Q931_SENDING_COMPLETE 0x21
@@ -245,27 +223,18 @@ extern int q931_alerting(struct pri *pri, q931_call *call, int channel, int info
extern int q931_call_proceeding(struct pri *pri, q931_call *call);
extern int q931_setup_ack(struct pri *pri, q931_call *call, int channel, int nonisdn);
extern int q931_information(struct pri *pri, q931_call *call, char digit);
extern int q931_connect(struct pri *pri, q931_call *call, int channel, int nonisdn);
extern int q931_release(struct pri *pri, q931_call *call, int cause);
extern int q931_disconnect(struct pri *pri, q931_call *call, int cause);
extern int q931_hangup(struct pri *pri, q931_call *call, int cause);
extern int q931_restart(struct pri *pri, int channel);
extern q931_call *q931_new_call(struct pri *pri);
extern int q931_setup(struct pri *pri, q931_call *c, int transmode, int channel, int exclusive,
int nonisdn, char *caller, int callerplan, char *callername, int callerpres, char *called,
int nonisdn, char *caller, int callerplan, int callerpres, char *called,
int calledplan, int ulay1);
extern void q931_dump(q931_h *h, int len, int txrx);
extern void __q931_destroycall(struct pri *pri, q931_call *c);
#endif

View File

@@ -38,7 +38,7 @@ int pri_schedule_event(struct pri *pri, int ms, void (*function)(void *data), vo
if (!pri->pri_sched[x].callback)
break;
if (x == MAX_SCHED) {
pri_error("No more room in scheduler\n");
fprintf(stderr, "No more room in scheduler\n");
return -1;
}
if (x > maxsched)
@@ -98,6 +98,6 @@ pri_event *pri_schedule_run(struct pri *pri)
void pri_schedule_del(struct pri *pri,int id)
{
if ((id >= MAX_SCHED) || (id < 0))
pri_error("Asked to delete sched id %d???\n", id);
fprintf(stderr, "Asked to delete sched id %d???\n", id);
pri->pri_sched[id].callback = NULL;
}

View File

@@ -48,8 +48,6 @@
#define PRI_DEF_SWITCHTYPE PRI_SWITCH_NI2
#define MAX_CHAN 32
#define DCHANNEL_TIMESLOT 16
static int offset = 0;
@@ -164,50 +162,10 @@ static void launch_channel(int channo)
}
static int get_free_channel(int channo)
{
channo--;
if((channo>MAX_CHAN)||(channo<0)) {
fprintf(stderr, "Invalid Bchannel RANGE <%d", channo);
return 0;
};
while(chans[channo].pid) {
channo--;
}
return channo;
}
/* place here criteria for completion of destination number */
static int number_incommplete(char *number)
{
return strlen(number) < 3;
}
static void start_channel(struct pri *pri, pri_event *e)
{
int channo = e->ring.channel;
int flag = 1;
pri_event_ring *ring = &e->ring;
if(channo == -1) {
channo = e->ring.channel = get_free_channel(MAX_CHAN);
if(channo == DCHANNEL_TIMESLOT)
channo = e->ring.channel = get_free_channel(MAX_CHAN);
fprintf(stdout, "Any channel selected: %d\n", channo);
if(!channo) {
pri_release(pri, ring->call, PRI_CAUSE_REQUESTED_CHAN_UNAVAIL);
fprintf(stdout, "Abort call due to no avl B channels\n");
return;
}
flag = 0;
}
/* Make sure it's a valid number */
if ((channo >= MAX_CHAN) || (channo < 0)) {
fprintf(stderr, "--!! Channel %d is out of range\n", channo);
@@ -227,11 +185,7 @@ static void start_channel(struct pri *pri, pri_event *e)
chans[channo].call = e->ring.call;
/* Answer the line */
if(flag) {
pri_answer(pri, chans[channo].call, channo, 1);
} else {
pri_need_more_info(pri, chans[channo].call, channo, 1);
}
pri_answer(pri, chans[channo].call, channo, 1);
/* Launch a process to handle it */
launch_channel(channo);
@@ -268,14 +222,6 @@ static void handle_pri_event(struct pri *pri, pri_event *e)
break;
case PRI_EVENT_HANGUP_ACK:
/* Ignore */
break;
case PRI_EVENT_INFO_RECEIVED:
fprintf(stdout, "number is: %s\n", e->ring.callednum);
if(!number_incommplete(e->ring.callednum)) {
fprintf(stdout, "final number is: %s\n", e->ring.callednum);
pri_answer(pri, e->ring.call, 0, 1);
}
break;
default:
fprintf(stderr, "--!! Unknown PRI event %d\n", e->e);

358
q921.c
View File

@@ -42,15 +42,12 @@
*/
#define Q921_INIT(hf) do { \
memset(&(hf),0,sizeof(hf)); \
(hf).h.sapi = 0; \
(hf).h.ea1 = 0; \
(hf).h.ea2 = 1; \
(hf).h.tei = 0; \
} while(0)
static void reschedule_t203(struct pri *pri);
static void q921_discard_retransmissions(struct pri *pri)
{
struct q921_frame *f, *p;
@@ -64,28 +61,24 @@ static void q921_discard_retransmissions(struct pri *pri)
pri->txqueue = NULL;
}
static int q921_transmit(struct pri *pri, q921_h *h, int len)
{
static int q921_transmit(struct pri *pri, q921_h *h, int len) {
int res;
#ifdef RANDOM_DROPS
if (!(random() % 3)) {
pri_message(" === Dropping Packet ===\n");
printf(" === Dropping Packet ===\n");
return 0;
}
#endif
#ifdef LIBPRI_COUNTERS
pri->q921_txcount++;
#endif
/* Just send it raw */
if (pri->debug & PRI_DEBUG_Q921_DUMP)
q921_dump(h, len, pri->debug & PRI_DEBUG_Q921_RAW, 1);
/* Write an extra two bytes for the FCS */
res = write(pri->fd, h, len + 2);
if (res != (len + 2)) {
pri_error("Short write: %d/%d (%s)\n", res, len + 2, strerror(errno));
fprintf(stderr, "Short write: %d/%d (%s)\n", res, len + 2, strerror(errno));
return -1;
}
reschedule_t203(pri);
return 0;
}
@@ -105,25 +98,21 @@ static void q921_send_ua(struct pri *pri, int pfbit)
h.h.c_r = 1;
break;
default:
pri_error("Don't know how to U/A on a type %d node\n", pri->localtype);
fprintf(stderr, "Don't know how to U/A on a type %d node\n", pri->localtype);
return;
}
if (pri->debug & PRI_DEBUG_Q921_STATE)
pri_message("Sending Unnumbered Acknowledgement\n");
printf("Sending Unnumbered Acknowledgement\n");
q921_transmit(pri, &h, 3);
}
static void q921_send_sabme_now(void *vpri);
static void q921_send_sabme(void *vpri, int now)
static void q921_send_sabme(void *vpri)
{
struct pri *pri = vpri;
q921_h h;
pri_schedule_del(pri, pri->sabme_timer);
pri->sabme_timer = 0;
pri->sabme_timer = pri_schedule_event(pri, T_200, q921_send_sabme_now, pri);
if (!now)
return;
pri->sabme_timer = pri_schedule_event(pri, T_200, q921_send_sabme, pri);
Q921_INIT(h);
h.u.m3 = 3; /* M3 = 3 */
h.u.m2 = 3; /* M2 = 3 */
@@ -137,58 +126,31 @@ static void q921_send_sabme(void *vpri, int now)
h.h.c_r = 0;
break;
default:
pri_error("Don't know how to U/A on a type %d node\n", pri->localtype);
fprintf(stderr, "Don't know how to U/A on a type %d node\n", pri->localtype);
return;
}
if (pri->debug & PRI_DEBUG_Q921_STATE)
pri_message("Sending Set Asynchronous Balanced Mode Extended\n");
printf("Sending Set Asynchronous Balanced Mode Extended\n");
q921_transmit(pri, &h, 3);
pri->q921_state = Q921_AWAITING_ESTABLISH;
}
static void q921_send_sabme_now(void *vpri)
{
q921_send_sabme(vpri, 1);
}
static int q921_ack_packet(struct pri *pri, int num)
{
struct q921_frame *f, *prev = NULL;
f = pri->txqueue;
while(f) {
if (f->h.n_s == num) {
/* Cancel each packet as necessary */
/* That's our packet */
if (prev)
prev->next = f->next;
else
pri->txqueue = f->next;
if (pri->debug & PRI_DEBUG_Q921_STATE)
pri_message("-- ACKing packet %d, new txqueue is %d (-1 means empty)\n", f->h.n_s, pri->txqueue ? pri->txqueue->h.n_s : -1);
/* Update v_a */
pri->v_a = num;
free(f);
/* Reset retransmission counter if we actually acked something */
pri->retrans = 0;
/* Decrement window size */
pri->windowlen--;
/* Search for something to send */
f = pri->txqueue;
while(f) {
if (!f->transmitted) {
/* Send it now... */
if (pri->debug & PRI_DEBUG_Q921_STATE)
pri_message("-- Finally transmitting %d, since window opened up\n", f->h.n_s);
f->transmitted++;
pri->windowlen++;
q921_transmit(pri, (q921_h *)(&f->h), f->len);
break;
}
f = f->next;
}
return 1;
}
prev = f;
f = f->next;
}
return 0;
@@ -196,68 +158,49 @@ static int q921_ack_packet(struct pri *pri, int num)
static void t203_expire(void *);
static void t200_expire(void *);
static pri_event *q921_dchannel_down(struct pri *pri);
static void reschedule_t203(struct pri *pri)
{
if (pri->t203_timer) {
pri_schedule_del(pri, pri->t203_timer);
if (pri->debug & PRI_DEBUG_Q921_STATE)
pri_message("-- Restarting T203 counter\n");
/* Nothing to transmit, start the T203 counter instead */
pri->t203_timer = pri_schedule_event(pri, T_203, t203_expire, pri);
}
}
static pri_event *q921_ack_rx(struct pri *pri, int ack)
static void q921_ack_rx(struct pri *pri, int ack)
{
int x;
int cnt=0;
pri_event *ev;
/* Make sure the ACK was within our window */
for (x=pri->v_a; (x != pri->v_s) && (x != ack); Q921_INC(x));
if (x != ack) {
/* ACK was outside of our window --- ignore */
pri_error("ACK received outside of window, restarting\n");
ev = q921_dchannel_down(pri);
q921_start(pri, 1);
pri->schedev = 1;
return ev;
fprintf(stderr, "ACK received outside of window, ignoring\n");
return;
}
/* Cancel each packet as necessary */
if (pri->debug & PRI_DEBUG_Q921_STATE)
pri_message("-- ACKing all packets from %d to (but not including) %d\n", pri->v_a, ack);
for (x=pri->v_a; x != ack; Q921_INC(x))
cnt += q921_ack_packet(pri, x);
if (!pri->txqueue) {
if (pri->debug & PRI_DEBUG_Q921_STATE)
pri_message("-- Since there was nothing left, stopping T200 counter\n");
printf("-- Since there was nothing left, stopping T200 counter\n");
/* Something was ACK'd. Stop T200 counter */
pri_schedule_del(pri, pri->t200_timer);
pri->t200_timer = 0;
}
if (pri->t203_timer) {
if (pri->debug & PRI_DEBUG_Q921_STATE)
pri_message("-- Stopping T203 counter since we got an ACK\n");
printf("-- Stopping T203 counter since we got an ACK\n");
pri_schedule_del(pri, pri->t203_timer);
pri->t203_timer = 0;
}
if (pri->txqueue) {
/* Something left to transmit, Start the T200 counter again if we stopped it */
if (pri->debug & PRI_DEBUG_Q921_STATE)
pri_message("-- Something left to transmit (%d), restarting T200 counter\n", pri->txqueue->h.n_s);
printf("-- Something left to transmit, restarting T200 counter\n");
if (!pri->t200_timer)
pri->t200_timer = pri_schedule_event(pri, T_200, t200_expire, pri);
} else {
if (pri->debug & PRI_DEBUG_Q921_STATE)
pri_message("-- Nothing left, starting T203 counter\n");
printf("-- Nothing left, starting T203 counter\n");
/* Nothing to transmit, start the T203 counter instead */
pri->t203_timer = pri_schedule_event(pri, T_203, t203_expire, pri);
}
return NULL;
}
static void q921_reject(struct pri *pri, int pf)
static void q921_reject(struct pri *pri)
{
q921_h h;
Q921_INIT(h);
@@ -265,7 +208,7 @@ static void q921_reject(struct pri *pri, int pf)
h.s.ss = 2; /* Reject */
h.s.ft = 1; /* Frametype (01) */
h.s.n_r = pri->v_r; /* Where to start retransmission */
h.s.p_f = pf;
h.s.p_f = 1; /* XXX Should it always be set to 1? XXX */
switch(pri->localtype) {
case PRI_NETWORK:
h.h.c_r = 0;
@@ -274,16 +217,15 @@ static void q921_reject(struct pri *pri, int pf)
h.h.c_r = 1;
break;
default:
pri_error("Don't know how to U/A on a type %d node\n", pri->localtype);
fprintf(stderr, "Don't know how to U/A on a type %d node\n", pri->localtype);
return;
}
if (pri->debug & PRI_DEBUG_Q921_STATE)
pri_message("Sending Reject (%d)\n", pri->v_r);
pri->sentrej = 1;
printf("Sending Reject (%d)\n", pri->v_r);
q921_transmit(pri, &h, 4);
}
static void q921_rr(struct pri *pri, int pbit, int cmd) {
static void q921_rr(struct pri *pri, int pbit) {
q921_h h;
Q921_INIT(h);
h.s.x0 = 0; /* Always 0 */
@@ -293,34 +235,30 @@ static void q921_rr(struct pri *pri, int pbit, int cmd) {
h.s.p_f = pbit; /* Poll/Final set appropriately */
switch(pri->localtype) {
case PRI_NETWORK:
if (cmd)
h.h.c_r = 1;
else
h.h.c_r = 0;
h.h.c_r = 0;
break;
case PRI_CPE:
if (cmd)
h.h.c_r = 0;
else
h.h.c_r = 1;
h.h.c_r = 1;
break;
default:
pri_error("Don't know how to U/A on a type %d node\n", pri->localtype);
fprintf(stderr, "Don't know how to U/A on a type %d node\n", pri->localtype);
return;
}
pri->v_na = pri->v_r; /* Make a note that we've already acked this */
if (pri->debug & PRI_DEBUG_Q921_STATE)
pri_message("Sending Receiver Ready (%d)\n", pri->v_r);
printf("Sending Receiver Ready (%d)\n", pri->v_r);
q921_transmit(pri, &h, 4);
}
static pri_event *q921_dchannel_down(struct pri *pri);
static void t200_expire(void *vpri)
{
struct pri *pri = vpri;
if (pri->txqueue) {
/* Retransmit first packet in the queue, setting the poll bit */
if (pri->debug & PRI_DEBUG_Q921_STATE)
pri_message("-- T200 counter expired, What to do...\n");
printf("-- T200 counter expired, What to do...\n");
/* Force Poll bit */
pri->txqueue->h.p_f = 1;
/* Update nr */
@@ -332,28 +270,22 @@ static void t200_expire(void *vpri)
if (pri->retrans < N_200) {
/* Reschedule t200_timer */
if (pri->debug & PRI_DEBUG_Q921_STATE)
pri_message("-- Retransmitting %d bytes\n", pri->txqueue->len);
if (pri->busy)
q921_rr(pri, 1, 0);
else {
if (!pri->txqueue->transmitted)
pri_error("!! Not good - head of queue has not been transmitted yet\n");
q921_transmit(pri, (q921_h *)&pri->txqueue->h, pri->txqueue->len);
}
printf("-- Retransmitting %d bytes\n", pri->txqueue->len);
q921_transmit(pri, (q921_h *)&pri->txqueue->h, pri->txqueue->len);
if (pri->debug & PRI_DEBUG_Q921_STATE)
pri_message("-- Rescheduling retransmission (%d)\n", pri->retrans);
printf("-- Rescheduling retransmission (%d)\n", pri->retrans);
pri->t200_timer = pri_schedule_event(pri, T_200, t200_expire, pri);
} else {
if (pri->debug & PRI_DEBUG_Q921_STATE)
pri_message("-- Timeout occured, restarting PRI\n");
pri->q921_state = Q921_LINK_CONNECTION_RELEASED;
printf("-- Timeout occured, restarting PRI\n");
pri->state = Q921_LINK_CONNECTION_RELEASED;
pri->t200_timer = 0;
q921_dchannel_down(pri);
q921_start(pri, 1);
q921_start(pri);
pri->schedev = 1;
}
} else {
pri_error("T200 counter expired, nothing to send...\n");
fprintf(stderr, "T200 counter expired, nothing to send...\n");
pri->t200_timer = 0;
}
}
@@ -363,7 +295,6 @@ int q921_transmit_iframe(struct pri *pri, void *buf, int len, int cr)
q921_frame *f, *prev=NULL;
for (f=pri->txqueue; f; f = f->next) prev = f;
f = malloc(sizeof(q921_frame) + len + 2);
memset(f,0,sizeof(q921_frame) + len + 2);
if (f) {
Q921_INIT(f->h);
switch(pri->localtype) {
@@ -381,7 +312,6 @@ int q921_transmit_iframe(struct pri *pri, void *buf, int len, int cr)
break;
}
f->next = NULL;
f->transmitted = 0;
f->len = len + 4;
memcpy(f->h.data, buf, len);
f->h.n_s = pri->v_s;
@@ -394,35 +324,25 @@ int q921_transmit_iframe(struct pri *pri, void *buf, int len, int cr)
prev->next = f;
else
pri->txqueue = f;
/* Immediately transmit unless we're in a recovery state, or the window
size is too big */
if (!pri->retrans && !pri->busy) {
if (pri->windowlen < pri->window) {
pri->windowlen++;
q921_transmit(pri, (q921_h *)(&f->h), f->len);
f->transmitted++;
} else {
if (pri->debug & PRI_DEBUG_Q921_STATE)
pri_message("Delaying transmission of %d, window is %d/%d long\n",
f->h.n_s, pri->windowlen, pri->window);
}
}
/* Immediately transmit unless we're in a recovery state */
if (!pri->retrans)
q921_transmit(pri, (q921_h *)(&f->h), f->len);
if (pri->t203_timer) {
if (pri->debug & PRI_DEBUG_Q921_STATE)
pri_message("Stopping T_203 timer\n");
printf("Stopping T_203 timer\n");
pri_schedule_del(pri, pri->t203_timer);
pri->t203_timer = 0;
}
if (!pri->t200_timer) {
if (pri->debug & PRI_DEBUG_Q921_STATE)
pri_message("Starting T_200 timer\n");
printf("Starting T_200 timer\n");
pri->t200_timer = pri_schedule_event(pri, T_200, t200_expire, pri);
} else
if (pri->debug & PRI_DEBUG_Q921_STATE)
pri_message("T_200 timer already going (%d)\n", pri->t200_timer);
printf("T_200 timer already going (%d)\n", pri->t200_timer);
} else {
pri_error("!! Out of memory for Q.921 transmit\n");
fprintf(stderr, "!! Out of memory for Q.921 transmit\n");
return -1;
}
return 0;
@@ -431,57 +351,47 @@ int q921_transmit_iframe(struct pri *pri, void *buf, int len, int cr)
static void t203_expire(void *vpri)
{
struct pri *pri = vpri;
if (pri->q921_state == Q921_LINK_CONNECTION_ESTABLISHED) {
if (pri->debug & PRI_DEBUG_Q921_STATE)
pri_message("T203 counter expired, sending RR and scheduling T203 again\n");
/* Solicit an F-bit in the other's RR */
pri->solicitfbit = 1;
q921_rr(pri, 1, 1);
/* Restart ourselves */
pri->t203_timer = pri_schedule_event(pri, T_203, t203_expire, pri);
} else {
if (pri->debug & PRI_DEBUG_Q921_STATE)
pri_message("T203 counter expired in weird statd %d\n", pri->q921_state);
pri->t203_timer = 0;
}
if (pri->debug & PRI_DEBUG_Q921_STATE)
printf("T203 counter expired, sending RR and scheduling T203 again\n");
/* Solicit an F-bit in the other's RR */
pri->solicitfbit = 1;
q921_rr(pri, 1);
/* Restart ourselves */
pri->t203_timer = pri_schedule_event(pri, T_203, t203_expire, pri);
}
static pri_event *q921_handle_iframe(struct pri *pri, q921_i *i, int len)
{
int res;
pri_event *ev;
/* Make sure this is a valid packet */
if (i->n_s == pri->v_r) {
/* Increment next expected I-frame */
Q921_INC(pri->v_r);
/* Handle their ACK */
pri->sentrej = 0;
ev = q921_ack_rx(pri, i->n_r);
if (ev)
return ev;
q921_ack_rx(pri, i->n_r);
if (i->p_f) {
/* If the Poll/Final bit is set, immediate send the RR */
q921_rr(pri, 1, 0);
} else if (pri->busy) {
q921_rr(pri, 0, 0);
q921_rr(pri, 1);
}
/* Receive Q.931 data */
res = q931_receive(pri, (q931_h *)i->data, len - 4);
/* Send an RR if one wasn't sent already */
if (pri->v_na != pri->v_r)
q921_rr(pri, 0, 0);
q921_rr(pri, 0);
if (res == -1) {
return NULL;
}
if (res & Q931_RES_HAVEEVENT)
return &pri->ev;
} else {
/* If we haven't already sent a reject, send it now, otherwise
we are obliged to RR */
if (!pri->sentrej)
q921_reject(pri, i->p_f);
else if (i->p_f)
q921_rr(pri, 1, 0);
if (((pri->v_r - i->n_s) & 127) < pri->window) {
/* It's within our window -- send back an RR */
q921_rr(pri, 0);
} else
q921_reject(pri);
#if 0
q931_reject(pri);
#endif
}
return NULL;
}
@@ -494,30 +404,26 @@ void q921_dump(q921_h *h, int len, int showraw, int txrx)
direction_tag = txrx ? '>' : '<';
if (showraw) {
char *buf = malloc(len * 3 + 1);
int buflen = 0;
if (buf) {
for (x=0;x<len;x++)
buflen += sprintf(buf + buflen, "%02x ", h->raw[x]);
pri_message("\n%c [ %s]\n", direction_tag, buf);
free(buf);
}
printf("\n%c [", direction_tag);
for (x=0;x<len;x++)
printf("%02x ",h->raw[x]);
printf("]");
}
switch (h->h.data[0] & Q921_FRAMETYPE_MASK) {
case 0:
case 2:
pri_message("\n%c Informational frame:\n", direction_tag);
printf("\n%c Informational frame:\n", direction_tag);
break;
case 1:
pri_message("\n%c Supervisory frame:\n", direction_tag);
printf("\n%c Supervisory frame:\n", direction_tag);
break;
case 3:
pri_message("\n%c Unnumbered frame:\n", direction_tag);
printf("\n%c Unnumbered frame:\n", direction_tag);
break;
}
pri_message(
printf(
"%c SAPI: %02d C/R: %d EA: %d\n"
"%c TEI: %03d EA: %d\n",
direction_tag,
@@ -531,7 +437,7 @@ void q921_dump(q921_h *h, int len, int showraw, int txrx)
case 0:
case 2:
/* Informational frame */
pri_message(
printf(
"%c N(S): %03d 0: %d\n"
"%c N(R): %03d P: %d\n"
"%c %d bytes of data\n",
@@ -558,7 +464,7 @@ void q921_dump(q921_h *h, int len, int showraw, int txrx)
type = "REJ (reject)";
break;
}
pri_message(
printf(
"%c Zero: %d S: %d 01: %d [ %s ]\n"
"%c N(R): %03d P/F: %d\n"
"%c %d bytes of data\n",
@@ -604,7 +510,7 @@ void q921_dump(q921_h *h, int len, int showraw, int txrx)
break;
}
}
pri_message(
printf(
"%c M3: %d P/F: %d M2: %d 11: %d [ %s ]\n"
"%c %d bytes of data\n",
direction_tag,
@@ -628,9 +534,6 @@ static pri_event *q921_dchannel_up(struct pri *pri)
pri_schedule_del(pri, pri->sabme_timer);
pri->sabme_timer = 0;
/* Reset any rejects */
pri->sentrej = 0;
/* Go into connection established state */
pri->q921_state = Q921_LINK_CONNECTION_ESTABLISHED;
@@ -660,7 +563,6 @@ void q921_reset(struct pri *pri)
pri->v_r = 0;
pri->v_na = 0;
pri->window = 7;
pri->windowlen = 0;
pri_schedule_del(pri, pri->sabme_timer);
pri_schedule_del(pri, pri->t203_timer);
pri_schedule_del(pri, pri->t200_timer);
@@ -671,17 +573,13 @@ void q921_reset(struct pri *pri)
pri->solicitfbit = 0;
pri->q921_state = Q921_LINK_CONNECTION_RELEASED;
pri->retrans = 0;
pri->sentrej = 0;
/* Discard anything waiting to go out */
q921_discard_retransmissions(pri);
}
static pri_event *__q921_receive(struct pri *pri, q921_h *h, int len)
pri_event *q921_receive(struct pri *pri, q921_h *h, int len)
{
q921_frame *f;
pri_event *ev;
int sendnow;
/* Discard FCS */
len -= 2;
@@ -704,23 +602,23 @@ static pri_event *__q921_receive(struct pri *pri, q921_h *h, int len)
case 0:
case 2:
if (pri->q921_state != Q921_LINK_CONNECTION_ESTABLISHED) {
pri_error("!! Got I-frame while link state %d\n", pri->q921_state);
fprintf(stderr, "!! Got I-frame while link state %d\n", pri->q921_state);
return NULL;
}
/* Informational frame */
if (len < 4) {
pri_error("!! Received short I-frame (expected 4, got %d)\n", len);
fprintf(stderr, "!! Received short I-frame\n");
break;
}
return q921_handle_iframe(pri, &h->i, len);
break;
case 1:
if (pri->q921_state != Q921_LINK_CONNECTION_ESTABLISHED) {
pri_error("!! Got S-frame while link down\n");
fprintf(stderr, "!! Got S-frame while link down\n");
return NULL;
}
if (len < 4) {
pri_error("!! Received short S-frame (expected 4, got %d)\n", len);
fprintf(stderr, "!! Received short S-frame\n");
break;
}
switch(h->s.ss) {
@@ -728,61 +626,54 @@ static pri_event *__q921_receive(struct pri *pri, q921_h *h, int len)
/* Receiver Ready */
pri->busy = 0;
/* Acknowledge frames as necessary */
ev = q921_ack_rx(pri, h->s.n_r);
if (ev)
return ev;
q921_ack_rx(pri, h->s.n_r);
if (h->s.p_f) {
/* If it's a p/f one then send back a RR in return with the p/f bit set */
if (pri->solicitfbit) {
if (pri->debug & PRI_DEBUG_Q921_STATE)
pri_message("-- Got RR response to our frame\n");
printf("-- Got RR response to our frame\n");
} else {
if (pri->debug & PRI_DEBUG_Q921_STATE)
pri_message("-- Unsolicited RR with P/F bit, responding\n");
q921_rr(pri, 1, 0);
printf("-- Unsolicited RR with P/F bit, responding\n");
q921_rr(pri, 1);
}
pri->solicitfbit = 0;
}
break;
#if 0
case 1:
/* Receiver not ready */
if (pri->debug & PRI_DEBUG_Q921_STATE)
pri_message("-- Got receiver not ready\n");
if(h->s.p_f) {
/* Send RR if poll bit set */
q921_rr(pri, h->s.p_f, 0);
}
printf("-- Got receiver not ready\n");
pri->busy = 1;
break;
#endif
case 2:
/* Just retransmit */
if (pri->debug & PRI_DEBUG_Q921_STATE)
pri_message("-- Got reject requesting packet %d... Retransmitting.\n", h->s.n_r);
printf("-- Got reject requesting packet %d... Retransmitting.\n", h->s.n_r);
if (h->s.p_f) {
/* If it has the poll bit set, send an appropriate supervisory response */
q921_rr(pri, 1, 0);
q921_rr(pri, 1);
}
sendnow = 0;
/* Resend the proper I-frame */
for(f=pri->txqueue;f;f=f->next) {
if ((sendnow || (f->h.n_s == h->s.n_r)) && f->transmitted) {
/* Matches the request, or follows in our window, and has
already been transmitted. */
sendnow = 1;
pri_error("!! Got reject for frame %d, retransmitting frame %d now, updating n_r!\n", h->s.n_r, f->h.n_s);
f->h.n_r = pri->v_r;
q921_transmit(pri, (q921_h *)(&f->h), f->len);
if (f->h.n_s == h->s.n_r) {
/* Matches the request */
break;
}
}
if (!sendnow) {
if (f) {
/* Retransmit the requested frame */
q921_transmit(pri, (q921_h *)(&f->h), f->len);
} else {
if (pri->txqueue) {
/* This should never happen */
if (!h->s.p_f || h->s.n_r) {
pri_error("!! Got reject for frame %d, but we only have others!\n", h->s.n_r);
fprintf(stderr, "!! Got reject for frame %d, but we only have others!\n", h->s.n_r);
}
} else {
/* Hrm, we have nothing to send, but have been REJ'd. Reset v_a, v_s, etc */
pri_error("!! Got reject for frame %d, but we have nothing -- resetting!\n", h->s.n_r);
pri->v_a = h->s.n_r;
pri->v_s = h->s.n_r;
/* Reset t200 timer if it was somehow going */
@@ -798,54 +689,46 @@ static pri_event *__q921_receive(struct pri *pri, q921_h *h, int len)
}
break;
default:
pri_error("!! XXX Unknown Supervisory frame ss=0x%02x,pf=%02xnr=%02x vs=%02x, va=%02x XXX\n", h->s.ss, h->s.p_f, h->s.n_r,
fprintf(stderr, "!! XXX Unknown Supervisory frame ss=0x%02x,pf=%02xnr=%02x vs=%02x, va=%02x XXX\n", h->s.ss, h->s.p_f, h->s.n_r,
pri->v_s, pri->v_a);
}
break;
case 3:
if (len < 3) {
pri_error("!! Received short unnumbered frame\n");
fprintf(stderr, "!! Received short unnumbered frame\n");
break;
}
switch(h->u.m3) {
case 0:
if (h->u.m2 == 3) {
if (h->u.p_f) {
/* Section 5.7.1 says we should restart on receiving a DM response with the f-bit set to
one, but we wait T200 first */
if (pri->debug & PRI_DEBUG_Q921_STATE)
pri_message("-- Got DM Mode from peer.\n");
/* Disconnected mode, try again after T200 */
ev = q921_dchannel_down(pri);
q921_start(pri, 0);
return ev;
printf("-- Got Unconnected Mode from peer.\n");
/* Disconnected mode */
if (pri->q921_state != Q921_LINK_CONNECTION_RELEASED)
return q921_dchannel_down(pri);
} else {
if (pri->debug & PRI_DEBUG_Q921_STATE)
pri_message("-- Ignoring unsolicited DM with p/f set to 0\n");
#if 0
printf("-- DM requesting SABME, starting.\n");
/* Requesting that we start */
q921_start(pri, 0);
#endif
q921_start(pri);
}
break;
} else if (!h->u.m2) {
pri_message("XXX Unnumbered Information not implemented XXX\n");
printf("XXX Unnumbered Information not implemented XXX\n");
}
break;
case 2:
if (pri->debug & PRI_DEBUG_Q921_STATE)
pri_message("-- Got Disconnect from peer.\n");
printf("-- Got Disconnect from peer.\n");
/* Acknowledge */
q921_send_ua(pri, h->u.p_f);
ev = q921_dchannel_down(pri);
q921_start(pri, 0);
return ev;
return q921_dchannel_down(pri);
case 3:
if (h->u.m2 == 3) {
/* SABME */
if (pri->debug & PRI_DEBUG_Q921_STATE) {
pri_message("-- Got SABME from %s peer.\n", h->h.c_r ? "network" : "cpe");
printf("-- Got SABME from %s peer.\n", h->h.c_r ? "network" : "cpe");
}
if (h->h.c_r) {
pri->remotetype = PRI_NETWORK;
@@ -867,22 +750,22 @@ static pri_event *__q921_receive(struct pri *pri, q921_h *h, int len)
/* It's a UA */
if (pri->q921_state == Q921_AWAITING_ESTABLISH) {
if (pri->debug & PRI_DEBUG_Q921_STATE) {
pri_message("-- Got UA from %s peer Link up.\n", h->h.c_r ? "cpe" : "network");
printf("-- Got UA from %s peer Link up.\n", h->h.c_r ? "cpe" : "network");
}
return q921_dchannel_up(pri);
} else
pri_error("!! Got a UA, but i'm in state %d\n", pri->q921_state);
fprintf(stderr, "!! Got a UA, but i'm in state %d\n", pri->q921_state);
} else
pri_error("!! Weird frame received (m3=3, m2 = %d)\n", h->u.m2);
fprintf(stderr, "!! Weird frame received (m3=3, m2 = %d)\n", h->u.m2);
break;
case 4:
pri_error("!! Frame got rejected!\n");
fprintf(stderr, "!! Frame got rejected!\n");
break;
case 5:
pri_error("!! XID frames not supported\n");
fprintf(stderr, "!! XID frames not supported\n");
break;
default:
pri_error("!! Don't know what to do with M3=%d u-frames\n", h->u.m3);
fprintf(stderr, "!! Don't know what to do with M3=%d u-frames\n", h->u.m3);
}
break;
@@ -890,25 +773,14 @@ static pri_event *__q921_receive(struct pri *pri, q921_h *h, int len)
return NULL;
}
pri_event *q921_receive(struct pri *pri, q921_h *h, int len)
{
pri_event *e;
e = __q921_receive(pri, h, len);
reschedule_t203(pri);
#ifdef LIBPRI_COUNTERS
pri->q921_rxcount++;
#endif
return e;
}
void q921_start(struct pri *pri, int now)
void q921_start(struct pri *pri)
{
if (pri->q921_state != Q921_LINK_CONNECTION_RELEASED) {
pri_error("!! q921_start: Not in 'Link Connection Released' state\n");
fprintf(stderr, "!! q921_start: Not in 'Link Connection Released' state\n");
return;
}
/* Reset our interface */
q921_reset(pri);
/* Do the SABME XXX Maybe we should implement T_WAIT? XXX */
q921_send_sabme(pri, now);
q921_send_sabme(pri);
}

1051
q931.c

File diff suppressed because it is too large Load Diff

View File

@@ -1,234 +0,0 @@
/*
* libpri: An implementation of Primary Rate ISDN
*
* Written by Mark Spencer <markster@linux-support.net>
*
* Copyright (C) 2001, Linux Support Services, Inc.
* All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
/*
* This program tests libpri call reception using a zaptel interface.
* Its state machines are setup for RECEIVING CALLS ONLY, so if you
* are trying to both place and receive calls you have to a bit more.
*/
#include <fcntl.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <sys/ioctl.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/signal.h>
#include <sys/select.h>
#include <sys/wait.h>
#include <sys/resource.h>
#include <sys/time.h>
#include <netinet/in.h>
#include <sys/socket.h>
#include <linux/zaptel.h>
#include <zap.h>
#include <pthread.h>
#include <sys/select.h>
#include "libpri.h"
#define DEBUG_LEVEL PRI_DEBUG_ALL
#define PRI_DEF_NODETYPE PRI_CPE
#define PRI_DEF_SWITCHTYPE PRI_SWITCH_NI2
static struct pri *first, *cur;
static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
#define TEST_CALLS 32
static void event1(struct pri *pri, pri_event *e)
{
/* Network */
int x;
static q931_call *calls[TEST_CALLS];
char name[256], num[256], dest[256];
switch(e->gen.e) {
case PRI_EVENT_DCHAN_UP:
printf("Network is up. Sending blast of calls!\n");
for (x=0;x<TEST_CALLS;x++) {
sprintf(name, "Caller %d", x + 1);
sprintf(num, "25642860%02d", x+1);
sprintf(dest, "60%02d", x + 1);
if (!(calls[x] = pri_new_call(pri))) {
perror("pri_new_call");
} else if (pri_call(pri, calls[x], PRI_TRANS_CAP_DIGITAL, x + 1, 1, 1, num,
PRI_NATIONAL_ISDN, name, PRES_ALLOWED_USER_NUMBER_PASSED_SCREEN,
dest, PRI_NATIONAL_ISDN, PRI_LAYER_1_ULAW)) {
perror("pri_call");
}
}
printf("Setup %d calls!\n", TEST_CALLS);
break;
default:
printf("PRI 1: %s (%d)\n", pri_event2str(e->gen.e), e->gen.e);
}
}
static void event2(struct pri *pri, pri_event *e)
{
/* CPE */
switch(e->gen.e) {
case PRI_EVENT_DCHAN_UP:
default:
printf("PRI 2: %s (%d)\n", pri_event2str(e->gen.e), e->gen.e);
}
}
static void testmsg(char *s)
{
char *c;
static int keeplast = 0;
do {
c = strchr(s, '\n');
if (c) {
*c = '\0';
c++;
}
if (keeplast)
printf("%s", s);
else if (cur == first)
printf("-1 %s", s);
else
printf("-2 %s", s);
if (c)
printf("\n");
s = c;
} while(c && *c);
if (!c)
keeplast = 1;
else
keeplast = 0;
}
static void testerr(char *s)
{
char *c;
static int keeplast = 0;
do {
c = strchr(s, '\n');
if (c) {
*c = '\0';
c++;
}
if (keeplast)
printf("%s", s);
else if (cur == first)
printf("=1 %s", s);
else
printf("=2 %s", s);
if (c)
printf("\n");
s = c;
} while(c && *c);
if (!c)
keeplast = 1;
else
keeplast = 0;
}
static void *dchan(void *data)
{
/* Joint D-channel */
struct pri *pri = data;
struct timeval *next, tv;
pri_event *e;
fd_set fds;
int res;
for(;;) {
if (next == pri_schedule_next(pri)) {
gettimeofday(&tv, NULL);
tv.tv_sec = next->tv_sec - tv.tv_sec;
tv.tv_usec = next->tv_usec - tv.tv_usec;
if (tv.tv_usec < 0) {
tv.tv_usec += 1000000;
tv.tv_sec -= 1;
}
if (tv.tv_sec < 0) {
tv.tv_sec = 0;
tv.tv_usec = 0;
}
}
FD_ZERO(&fds);
FD_SET(pri_fd(pri), &fds);
res = select(pri_fd(pri) + 1, &fds, NULL, NULL, next ? &tv : NULL);
pthread_mutex_lock(&lock);
cur = pri;
if (res < 0) {
perror("select");
} else if (!res) {
e = pri_schedule_run(pri);
} else {
e = pri_check_event(pri);
}
if (e) {
if (first == pri) {
event1(pri, e);
} else {
event2(pri, e);
}
}
pthread_mutex_unlock(&lock);
}
return NULL;
}
int main(int argc, char *argv[])
{
int pair[2];
pthread_t tmp;
struct pri *pri;
pri_set_message(testmsg);
pri_set_error(testerr);
if (socketpair(AF_LOCAL, SOCK_DGRAM, 0, pair)) {
perror("socketpair");
exit(1);
}
if (!(pri = pri_new(pair[0], PRI_NETWORK, PRI_DEF_SWITCHTYPE))) {
perror("pri(0)");
exit(1);
}
first = pri;
pri_set_debug(pri, DEBUG_LEVEL);
if (pthread_create(&tmp, NULL, dchan, pri)) {
perror("thread(0)");
exit(1);
}
if (!(pri = pri_new(pair[1], PRI_CPE, PRI_DEF_SWITCHTYPE))) {
perror("pri(1)");
exit(1);
}
pri_set_debug(pri, DEBUG_LEVEL);
if (pthread_create(&tmp, NULL, dchan, pri)) {
perror("thread(1)");
exit(1);
}
/* Wait for things to run */
sleep(5);
exit(0);
}