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3 Commits
0.5.1 ... 0.3.2

Author SHA1 Message Date
Kevin P. Fleming
0d9086215b remove extraneous svn:executable properties
git-svn-id: https://origsvn.digium.com/svn/libpri/tags/0.3.2@266 2fbb986a-6c06-0410-b554-c9c1f0a7f128
2005-11-29 18:39:18 +00:00
Kevin P. Fleming
824bdcdba7 automatic tag renames
git-svn-id: https://origsvn.digium.com/svn/libpri/tags/0.3.2@263 2fbb986a-6c06-0410-b554-c9c1f0a7f128
2005-11-27 04:17:23 +00:00
Admin Commit
8ca26de3f9 This commit was manufactured by cvs2svn to create tag 'v0-3-2'.
git-svn-id: https://origsvn.digium.com/svn/libpri/tags/v0-3-2@36 2fbb986a-6c06-0410-b554-c9c1f0a7f128
2003-03-25 17:02:23 +00:00
7 changed files with 134 additions and 678 deletions

View File

@@ -20,16 +20,12 @@
# 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
TOBJS=testpri.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)
CFLAGS=-Wall -Werror -Wstrict-prototypes -Wmissing-prototypes -g
INSTALL_PREFIX=
all: $(STATIC_LIBRARY) $(DYNAMIC_LIBRARY)

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 */
@@ -63,9 +62,6 @@
#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 +176,6 @@
#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 {
@@ -237,7 +231,6 @@ typedef struct pri_event_ring {
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;
@@ -254,16 +247,6 @@ 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 */
@@ -275,8 +258,6 @@ typedef union {
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;
@@ -338,31 +319,11 @@ extern int pri_need_more_info(struct pri *pri, q931_call *call, int channel, int
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);
@@ -382,8 +343,4 @@ extern int pri_call(struct pri *pri, q931_call *c, int transmode, int channel,
/* 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);
#endif

30
pri.c
View File

@@ -49,8 +49,6 @@ char *pri_switch2str(int sw)
return "Lucent 5E";
case PRI_SWITCH_ATT4ESS:
return "AT&T 4ESS";
case PRI_SWITCH_NI1:
return "National ISDN 1";
default:
return "Unknown switchtype";
}
@@ -190,13 +188,6 @@ int pri_information(struct pri *pri, q931_call *call, char digit)
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)
@@ -211,8 +202,6 @@ 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)
@@ -226,17 +215,6 @@ 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)
{
@@ -285,7 +263,7 @@ int pri_call(struct pri *pri, q931_call *c, int transmode, int channel, int excl
{
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, callername, callerpres, called, calledplan, ulayer1);
}
static void (*__pri_error)(char *stuff);
@@ -326,9 +304,3 @@ void pri_error(char *fmt, ...)
else
fprintf(stderr, tmp);
}
/* Set overlap mode */
void pri_set_overlapdial(struct pri *pri,int state)
{
pri->overlapdial = state;
}

View File

@@ -58,7 +58,6 @@ struct pri {
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 */
@@ -79,9 +78,6 @@ struct pri {
/* Q.931 calls */
q931_call *calls;
/* do we do overlap dialing */
int overlapdial;
};
extern int pri_schedule_event(struct pri *pri, int ms, void (*function)(void *data), void *data);

View File

@@ -255,8 +255,6 @@ 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);
@@ -265,7 +263,4 @@ extern int q931_setup(struct pri *pri, q931_call *c, int transmode, int channel,
int nonisdn, char *caller, int callerplan, char *callername, 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

139
q921.c
View File

@@ -49,8 +49,6 @@
(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;
@@ -64,8 +62,7 @@ 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)) {
@@ -83,7 +80,6 @@ static int q921_transmit(struct pri *pri, q921_h *h, int len)
pri_error("Short write: %d/%d (%s)\n", res, len + 2, strerror(errno));
return -1;
}
reschedule_t203(pri);
return 0;
}
@@ -178,33 +174,17 @@ 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;
pri_error("ACK received outside of window, ignoring\n");
return;
}
/* Cancel each packet as necessary */
if (pri->debug & PRI_DEBUG_Q921_STATE)
@@ -236,10 +216,9 @@ static pri_event *q921_ack_rx(struct pri *pri, int ack)
/* 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);
@@ -247,7 +226,7 @@ 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;
@@ -261,11 +240,10 @@ static void q921_reject(struct pri *pri, int pf)
}
if (pri->debug & PRI_DEBUG_Q921_STATE)
pri_message("Sending Reject (%d)\n", pri->v_r);
pri->sentrej = 1;
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 */
@@ -275,16 +253,10 @@ 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);
@@ -296,6 +268,8 @@ static void q921_rr(struct pri *pri, int pbit, int cmd) {
q921_transmit(pri, &h, 4);
}
static pri_event *q921_dchannel_down(struct pri *pri);
static void t200_expire(void *vpri)
{
struct pri *pri = vpri;
@@ -315,17 +289,14 @@ static void t200_expire(void *vpri)
/* 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
q921_transmit(pri, (q921_h *)&pri->txqueue->h, 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);
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;
pri->state = Q921_LINK_CONNECTION_RELEASED;
pri->t200_timer = 0;
q921_dchannel_down(pri);
q921_start(pri, 1);
@@ -373,9 +344,8 @@ int q921_transmit_iframe(struct pri *pri, void *buf, int len, int cr)
else
pri->txqueue = f;
/* Immediately transmit unless we're in a recovery state */
if (!pri->retrans && !pri->busy) {
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");
@@ -400,57 +370,47 @@ 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)
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);
/* 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;
}
@@ -593,9 +553,6 @@ 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;
@@ -635,16 +592,13 @@ 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;
@@ -692,9 +646,7 @@ 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) {
@@ -703,28 +655,26 @@ static pri_event *__q921_receive(struct pri *pri, q921_h *h, int len)
} else {
if (pri->debug & PRI_DEBUG_Q921_STATE)
pri_message("-- Unsolicited RR with P/F bit, responding\n");
q921_rr(pri, 1, 0);
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);
}
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);
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 */
@@ -776,6 +726,7 @@ static pri_event *__q921_receive(struct pri *pri, q921_h *h, int len)
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 */
pri_event *ev = NULL;
if (pri->debug & PRI_DEBUG_Q921_STATE)
pri_message("-- Got DM Mode from peer.\n");
/* Disconnected mode, try again after T200 */
@@ -801,9 +752,7 @@ static pri_event *__q921_receive(struct pri *pri, q921_h *h, int len)
pri_message("-- 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 */
@@ -853,14 +802,6 @@ 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);
return e;
}
void q921_start(struct pri *pri, int now)
{
if (pri->q921_state != Q921_LINK_CONNECTION_RELEASED) {

585
q931.c

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