[svn-commits] jpeeler: branch 1.4 r732 - /branches/1.4/
SVN commits to the Digium repositories
svn-commits at lists.digium.com
Tue Apr 14 10:05:30 CDT 2009
Author: jpeeler
Date: Tue Apr 14 10:05:21 2009
New Revision: 732
URL: http://svn.digium.com/svn-view/libpri?view=rev&rev=732
Log:
Add service maintenance message support
This adds support for two new message types: Service and Service Acknowledge.
When a channel receives a service message it will either take the channel in
or out of service and then send a service acknowledgment. Although not
enforced here (enforced in chan_dahdi), the service messages are only supported
with switch types 4ess/5ess. The required Asterisk changes will be coming next.
(issue #3450)
Reported by: cmaj
Modified:
branches/1.4/libpri.h
branches/1.4/pri.c
branches/1.4/pri_internal.h
branches/1.4/pri_q921.h
branches/1.4/pri_q931.h
branches/1.4/q921.c
branches/1.4/q931.c
Modified: branches/1.4/libpri.h
URL: http://svn.digium.com/svn-view/libpri/branches/1.4/libpri.h?view=diff&rev=732&r1=731&r2=732
==============================================================================
--- branches/1.4/libpri.h (original)
+++ branches/1.4/libpri.h Tue Apr 14 10:05:21 2009
@@ -81,6 +81,8 @@
#define PRI_EVENT_NOTIFY 16 /* Notification received (NOTIFY) */
#define PRI_EVENT_PROGRESS 17 /* When we get PROGRESS */
#define PRI_EVENT_KEYPAD_DIGIT 18 /* When we receive during ACTIVE state (INFORMATION) */
+#define PRI_EVENT_SERVICE 19 /* SERVICE maintenance message */
+#define PRI_EVENT_SERVICE_ACK 20 /* SERVICE maintenance acknowledgement message */
/* Simple states */
#define PRI_STATE_DOWN 0
@@ -430,6 +432,18 @@
char digits[64];
} pri_event_keypad_digit;
+typedef struct pri_event_service {
+ int e;
+ int channel;
+ int changestatus;
+} pri_event_service;
+
+typedef struct pri_event_service_ack {
+ int e;
+ int channel;
+ int changestatus;
+} pri_event_service_ack;
+
typedef union {
int e;
pri_event_generic gen; /* Generic view */
@@ -445,6 +459,8 @@
pri_event_setup_ack setup_ack; /* SETUP_ACKNOWLEDGE structure */
pri_event_notify notify; /* Notification */
pri_event_keypad_digit digit; /* Digits that come during a call */
+ pri_event_service service; /* service message */
+ pri_event_service_ack service_ack; /* service acknowledgement message */
} pri_event;
struct pri;
@@ -555,6 +571,9 @@
int pri_restart(struct pri *pri);
int pri_reset(struct pri *pri, int channel);
+
+/* handle b-channel maintenance messages */
+extern int pri_maintenance_service(struct pri *pri, int span, int channel, int changestatus);
/* Create a new call */
q931_call *pri_new_call(struct pri *pri);
@@ -600,6 +619,9 @@
/* Send an MWI deactivate request to a remote location */
int pri_mwi_deactivate(struct pri *pri, q931_call *c, char *caller, int callerplan, char *callername, int callerpres, char *called, int calledplan);
+
+/* Set service message support flag */
+int pri_set_service_message_support(struct pri *pri, int supportflag);
#define PRI_2BCT
/* Attempt to pass the channels back to the NET side if compatable and
Modified: branches/1.4/pri.c
URL: http://svn.digium.com/svn-view/libpri/branches/1.4/pri.c?view=diff&rev=732&r1=731&r2=732
==============================================================================
--- branches/1.4/pri.c (original)
+++ branches/1.4/pri.c Tue Apr 14 10:05:21 2009
@@ -108,6 +108,15 @@
if (timer < 0 || timer > PRI_MAX_TIMERS)
return -1;
return pri->timers[timer];
+}
+
+int pri_set_service_message_support(struct pri *pri, int supportflag)
+{
+ if (!pri) {
+ return -1;
+ }
+ pri->service_message_support = supportflag;
+ return 0;
}
int pri_timer2idx(char *timer)
@@ -630,6 +639,14 @@
return q931_restart(pri, channel);
}
+int pri_maintenance_service(struct pri *pri, int span, int channel, int changestatus)
+{
+ if (!pri) {
+ return -1;
+ }
+ return maintenance_service(pri, span, channel, changestatus);
+}
+
q931_call *pri_new_call(struct pri *pri)
{
if (!pri)
Modified: branches/1.4/pri_internal.h
URL: http://svn.digium.com/svn-view/libpri/branches/1.4/pri_internal.h?view=diff&rev=732&r1=731&r2=732
==============================================================================
--- branches/1.4/pri_internal.h (original)
+++ branches/1.4/pri_internal.h Tue Apr 14 10:05:21 2009
@@ -113,6 +113,9 @@
/* do we do overlap dialing */
int overlapdial;
+
+ /* do we support SERVICE messages */
+ int service_message_support;
/* do not skip channel 16 */
int chan_mapping_logical;
@@ -264,6 +267,8 @@
/* Bridged call info */
q931_call *bridged_call; /* Pointer to other leg of bridged call */
+
+ int changestatus; /* SERVICE message changestatus */
};
extern int pri_schedule_event(struct pri *pri, int ms, void (*function)(void *data), void *data);
Modified: branches/1.4/pri_q921.h
URL: http://svn.digium.com/svn-view/libpri/branches/1.4/pri_q921.h?view=diff&rev=732&r1=731&r2=732
==============================================================================
--- branches/1.4/pri_q921.h (original)
+++ branches/1.4/pri_q921.h Tue Apr 14 10:05:21 2009
@@ -192,4 +192,8 @@
extern int q921_transmit_iframe(struct pri *pri, void *buf, int len, int cr);
+extern pri_event *q921_dchannel_up(struct pri *pri);
+
+extern pri_event *q921_dchannel_down(struct pri *pri);
+
#endif
Modified: branches/1.4/pri_q931.h
URL: http://svn.digium.com/svn-view/libpri/branches/1.4/pri_q931.h?view=diff&rev=732&r1=731&r2=732
==============================================================================
--- branches/1.4/pri_q931.h (original)
+++ branches/1.4/pri_q931.h Tue Apr 14 10:05:21 2009
@@ -113,6 +113,8 @@
#define Q931_PROTOCOL_DISCRIMINATOR 0x08
#define GR303_PROTOCOL_DISCRIMINATOR 0x4f
+#define MAINTENANCE_PROTOCOL_DISCRIMINATOR_1 0x03
+#define MAINTENANCE_PROTOCOL_DISCRIMINATOR_2 0x43
/* Q.931 / National ISDN Message Types */
@@ -159,6 +161,12 @@
/* Maintenance messages (codeset 0 only) */
#define NATIONAL_SERVICE 0x0f
#define NATIONAL_SERVICE_ACKNOWLEDGE 0x07
+
+#define SERVICE_CHANGE_STATUS_INSERVICE 0
+#define SERVICE_CHANGE_STATUS_LOOPBACK 1 /* not supported */
+#define SERVICE_CHANGE_STATUS_OUTOFSERVICE 2
+#define SERVICE_CHANGE_STATUS_REQCONTINUITYCHECK 3 /* not supported */
+#define SERVICE_CHANGE_STATUS_SHUTDOWN 4 /* not supported */
/* Special codeset 0 IE */
#define NATIONAL_CHANGE_STATUS 0x1
@@ -248,6 +256,10 @@
/* EuroISDN */
#define Q931_SENDING_COMPLETE 0xa1
+extern int maintenance_service(struct pri *pri, int span, int channel, int changestatus);
+
+extern int maintenance_service_ack(struct pri *pri, q931_call *call);
+
/* Q.SIG specific */
#define QSIG_IE_TRANSIT_COUNT 0x31
Modified: branches/1.4/q921.c
URL: http://svn.digium.com/svn-view/libpri/branches/1.4/q921.c?view=diff&rev=732&r1=731&r2=732
==============================================================================
--- branches/1.4/q921.c (original)
+++ branches/1.4/q921.c Tue Apr 14 10:05:21 2009
@@ -248,7 +248,6 @@
static void t203_expire(void *);
static void t200_expire(void *);
-static pri_event *q921_dchannel_down(struct pri *pri);
static void reschedule_t200(struct pri *pri)
{
@@ -785,7 +784,7 @@
}
}
-static pri_event *q921_dchannel_up(struct pri *pri)
+pri_event *q921_dchannel_up(struct pri *pri)
{
/* Stop any SABME retransmissions */
if (pri->sabme_timer) {
@@ -814,7 +813,7 @@
return &pri->ev;
}
-static pri_event *q921_dchannel_down(struct pri *pri)
+pri_event *q921_dchannel_down(struct pri *pri)
{
/* Reset counters, reset sabme timer etc */
q921_reset(pri);
Modified: branches/1.4/q931.c
URL: http://svn.digium.com/svn-view/libpri/branches/1.4/q931.c?view=diff&rev=732&r1=731&r2=732
==============================================================================
--- branches/1.4/q931.c (original)
+++ branches/1.4/q931.c Tue Apr 14 10:05:21 2009
@@ -89,11 +89,14 @@
{ Q931_SUSPEND, "SUSPEND" },
{ Q931_SUSPEND_ACKNOWLEDGE, "SUSPEND ACKNOWLEDGE" },
{ Q931_SUSPEND_REJECT, "SUSPEND REJECT" },
-
- /* Maintenance */
- { NATIONAL_SERVICE, "SERVICE" },
- { NATIONAL_SERVICE_ACKNOWLEDGE, "SERVICE ACKNOWLEDGE" },
};
+static int post_handle_q931_message(struct pri *pri, struct q931_mh *mh, struct q931_call *c, int missingmand);
+
+struct msgtype maintenance_msgs[] = {
+ { NATIONAL_SERVICE, "SERVICE", { Q931_CHANNEL_IDENT } },
+ { NATIONAL_SERVICE_ACKNOWLEDGE, "SERVICE ACKNOWLEDGE", { Q931_CHANNEL_IDENT } },
+};
+static int post_handle_maintenance_message(struct pri *pri, struct q931_mh *mh, struct q931_call *c);
static struct msgtype causes[] = {
{ PRI_CAUSE_UNALLOCATED, "Unallocated (unassigned) number" },
@@ -258,6 +261,20 @@
return "Unknown";
}
+static char *pritype(int type)
+{
+ switch (type) {
+ case PRI_CPE:
+ return "CPE";
+ break;
+ case PRI_NETWORK:
+ return "NET";
+ break;
+ default:
+ return "UNKNOWN";
+ }
+}
+
static void call_init(struct q931_call *c)
{
c->forceinvert = -1;
@@ -458,8 +475,8 @@
if (!(ie->data[pos] & 0x10)) {
/* Number specified */
pos++;
- pri_message(pri, "%c Ext: %d Channel: %d ]\n", prefix, (ie->data[pos] & 0x80) >> 7,
- (ie->data[pos]) & 0x7f);
+ pri_message(pri, "%c Ext: %d Channel: %d Type: %s]\n", prefix, (ie->data[pos] & 0x80) >> 7,
+ (ie->data[pos]) & 0x7f, pritype(pri->localtype));
} else {
pos++;
/* Map specified */
@@ -1178,6 +1195,29 @@
}
return 0;
+}
+
+static FUNC_DUMP(dump_change_status)
+{
+ int x;
+
+ pri_message(pri, "%c Change Status Information (len=%2d) [", prefix, len);
+ for (x=0; x<ie->len; x++) {
+ pri_message(pri, " %02x", ie->data[x] & 0x7f);
+ }
+ pri_message(pri, " ]\n");
+}
+
+static FUNC_RECV(receive_change_status)
+{
+ call->changestatus = ie->data[0] & 0x0f;
+ return 0;
+}
+
+static FUNC_SEND(transmit_change_status)
+{
+ ie->data[0] = 0xc0 | call->changestatus;
+ return 3;
}
static char *prog2str(int prog)
@@ -2143,7 +2183,7 @@
static struct ie ies[] = {
/* Codeset 0 - Common */
- { 1, NATIONAL_CHANGE_STATUS, "Change Status" },
+ { 1, NATIONAL_CHANGE_STATUS, "Change Status", dump_change_status, receive_change_status, transmit_change_status },
{ 0, Q931_LOCKING_SHIFT, "Locking Shift", dump_shift },
{ 0, Q931_BEARER_CAPABILITY, "Bearer Capability", dump_bearer_capability, receive_bearer_capability, transmit_bearer_capability },
{ 0, Q931_CAUSE, "Cause", dump_cause, receive_cause, transmit_cause },
@@ -2187,7 +2227,7 @@
{ 1, Q931_IE_USER_USER, "User-User", dump_user_user, receive_user_user, transmit_user_user },
{ 1, Q931_IE_ESCAPE_FOR_EXT, "Escape for Extension" },
{ 1, Q931_IE_CALL_STATUS, "Call Status" },
- { 1, Q931_IE_CHANGE_STATUS, "Change Status" },
+ { 1, Q931_IE_CHANGE_STATUS, "Change Status", dump_change_status, receive_change_status, transmit_change_status },
{ 1, Q931_IE_CONNECTED_ADDR, "Connected Number", dump_connected_number },
{ 1, Q931_IE_CONNECTED_NUM, "Connected Number", dump_connected_number },
{ 1, Q931_IE_ORIGINAL_CALLED_NUMBER, "Original Called Number", dump_redirecting_number, receive_redirecting_number, transmit_redirecting_number },
@@ -2270,6 +2310,16 @@
for (x=0;x<sizeof(msgs) / sizeof(msgs[0]); x++)
if (msgs[x].msgnum == msg)
return msgs[x].name;
+ return "Unknown Message Type";
+}
+
+static char *maintenance_msg2str(int msg)
+{
+ unsigned int x;
+ for (x=0; x<sizeof(maintenance_msgs)/sizeof(maintenance_msgs[0]); x++) {
+ if (maintenance_msgs[x].msgnum == msg)
+ return maintenance_msgs[x].name;
+ }
return "Unknown Message Type";
}
@@ -2525,7 +2575,11 @@
pri_message(pri, "%c Call Ref: len=%2d (reference %d/0x%X) (%s)\n", c, h->crlen, q931_cr(h) & 0x7FFF, q931_cr(h) & 0x7FFF, (h->crv[0] & 0x80) ? "Terminator" : "Originator");
/* Message header begins at the end of the call reference number */
mh = (q931_mh *)(h->contents + h->crlen);
- pri_message(pri, "%c Message type: %s (%d)\n", c, msg2str(mh->msg), mh->msg);
+ if ((h->pd == MAINTENANCE_PROTOCOL_DISCRIMINATOR_1) || (h->pd == MAINTENANCE_PROTOCOL_DISCRIMINATOR_2)) {
+ pri_message(pri, "%c Message Type: %s (%d)\n", c, maintenance_msg2str(mh->msg), mh->msg);
+ } else {
+ pri_message(pri, "%c Message Type: %s (%d)\n", c, msg2str(mh->msg), mh->msg);
+ }
/* Drop length of header, including call reference */
len -= (h->crlen + 3);
codeset = cur_codeset = 0;
@@ -2571,12 +2625,16 @@
return -1;
}
-static void init_header(struct pri *pri, q931_call *call, unsigned char *buf, q931_h **hb, q931_mh **mhb, int *len)
+static void init_header(struct pri *pri, q931_call *call, unsigned char *buf, q931_h **hb, q931_mh **mhb, int *len, int protodisc)
{
/* Returns header and message header and modifies length in place */
q931_h *h = (q931_h *)buf;
q931_mh * mh;
- h->pd = pri->protodisc;
+ if (protodisc) {
+ h->pd = protodisc;
+ } else {
+ h->pd = pri->protodisc;
+ }
h->x0 = 0; /* Reserved 0 */
if (!pri->bri) {
h->crlen = 2; /* Two bytes of Call Reference. Invert the top bit to make it from our sense */
@@ -2639,8 +2697,8 @@
memset(buf, 0, sizeof(buf));
len = sizeof(buf);
- init_header(pri, c, buf, &h, &mh, &len);
- mh->msg = msgtype;
+ init_header(pri, c, buf, &h, &mh, &len, (msgtype >> 8));
+ mh->msg = msgtype & 0x00ff;
x=0;
codeset = 0;
while(ies[x] > -1) {
@@ -2660,6 +2718,30 @@
q931_xmit(c->pri, h, len, 1);
c->acked = 1;
return 0;
+}
+
+static int maintenance_service_ies[] = { Q931_IE_CHANGE_STATUS, Q931_CHANNEL_IDENT, -1 };
+
+int maintenance_service_ack(struct pri *pri, q931_call *c)
+{
+ return send_message(pri, c, (MAINTENANCE_PROTOCOL_DISCRIMINATOR_1 << 8) | NATIONAL_SERVICE_ACKNOWLEDGE, maintenance_service_ies);
+}
+
+int maintenance_service(struct pri *pri, int span, int channel, int changestatus)
+{
+ struct q931_call *c;
+ c = q931_getcall(pri, 0x8000, 0);
+ if (!c) {
+ return -1;
+ }
+ if (channel > -1) {
+ channel &= 0xff;
+ }
+ c->ds1no = span;
+ c->channelno = channel;
+ c->chanflags |= FLAG_EXCLUSIVE;
+ c->changestatus = changestatus;
+ return send_message(pri, c, (MAINTENANCE_PROTOCOL_DISCRIMINATOR_1 << 8) | NATIONAL_SERVICE, maintenance_service_ies);
}
static int status_ies[] = { Q931_CAUSE, Q931_CALL_STATE, -1 };
@@ -3266,45 +3348,36 @@
return 0;
}
-int q931_receive(struct pri *pri, q931_h *h, int len)
-{
- q931_mh *mh;
- q931_call *c;
- q931_ie *ie;
- unsigned int x;
- int y;
- int res;
- int r;
- int mandies[MAX_MAND_IES];
- int missingmand;
- int codeset, cur_codeset;
- int last_ie[8];
- struct apdu_event *cur = NULL;
-
- memset(last_ie, 0, sizeof(last_ie));
- if (pri->debug & PRI_DEBUG_Q931_DUMP)
- q931_dump(pri, h, len, 0);
-#ifdef LIBPRI_COUNTERS
- pri->q931_rxcount++;
-#endif
- mh = (q931_mh *)(h->contents + h->crlen);
- if ((h->pd == 0x3) || (h->pd == 0x43)) {
- /* This is the weird maintenance stuff. We majorly
- KLUDGE this by changing byte 4 from a 0xf (SERVICE)
- to a 0x7 (SERVICE ACKNOWLEDGE) */
- h->raw[h->crlen + 2] -= 0x8;
- q931_xmit(pri, h, len, 1);
- return 0;
- } else if (h->pd != pri->protodisc) {
- pri_error(pri, "Warning: unknown/inappropriate protocol discriminator received (%02x/%d)\n", h->pd, h->pd);
- return 0;
- }
- c = q931_getcall(pri, q931_cr(h), 0);
- if (!c) {
- pri_error(pri, "Unable to locate call %d\n", q931_cr(h));
+static int prepare_to_handle_maintenance_message(struct pri *pri, q931_mh *mh, q931_call *c)
+{
+ if ((!pri) || (!mh) || (!c)) {
return -1;
}
- /* Preliminary handling */
+ /* SERVICE messages are a superset of messages that can take b-channels
+ * or entire d-channels in and out of service */
+ switch(mh->msg) {
+ case NATIONAL_SERVICE:
+ case NATIONAL_SERVICE_ACKNOWLEDGE:
+ c->channelno = -1;
+ c->slotmap = -1;
+ c->chanflags = 0;
+ c->ds1no = 0;
+ c->ri = -1;
+ c->changestatus = -1;
+ break;
+ default:
+ pri_error(pri, "!! Don't know how to pre-handle maintenance message type '%s' (%d)\n", maintenance_msg2str(mh->msg), mh->msg);
+ return -1;
+ }
+ return 0;
+}
+
+static int prepare_to_handle_q931_message(struct pri *pri, q931_mh *mh, q931_call *c)
+{
+ if ((!pri) || (!mh) || (!c)) {
+ return -1;
+ }
+
switch(mh->msg) {
case Q931_RESTART:
if (pri->debug & PRI_DEBUG_Q931_STATE)
@@ -3433,6 +3506,57 @@
q931_destroycall(pri,c->cr);
return -1;
}
+ return 0;
+}
+
+int q931_receive(struct pri *pri, q931_h *h, int len)
+{
+ q931_mh *mh;
+ q931_call *c;
+ q931_ie *ie;
+ unsigned int x;
+ int y;
+ int res;
+ int r;
+ int mandies[MAX_MAND_IES];
+ int missingmand;
+ int codeset, cur_codeset;
+ int last_ie[8];
+
+ memset(last_ie, 0, sizeof(last_ie));
+ if (pri->debug & PRI_DEBUG_Q931_DUMP)
+ q931_dump(pri, h, len, 0);
+#ifdef LIBPRI_COUNTERS
+ pri->q931_rxcount++;
+#endif
+ mh = (q931_mh *)(h->contents + h->crlen);
+ if ((h->pd != pri->protodisc) && (h->pd != MAINTENANCE_PROTOCOL_DISCRIMINATOR_1) && (h->pd != MAINTENANCE_PROTOCOL_DISCRIMINATOR_2)) {
+ pri_error(pri, "Warning: unknown/inappropriate protocol discriminator received (%02x/%d)\n", h->pd, h->pd);
+ return 0;
+ }
+ if (((h->pd == MAINTENANCE_PROTOCOL_DISCRIMINATOR_1) || (h->pd == MAINTENANCE_PROTOCOL_DISCRIMINATOR_2)) && (!pri->service_message_support)) {
+ /* Real service message support has not been enabled (and is OFF in libpri by default),
+ * so we have to revert to the 'traditional' KLUDGE of changing byte 4 from a 0xf (SERVICE)
+ * to a 0x7 (SERVICE ACKNOWLEDGE) */
+ /* This is the weird maintenance stuff. We majorly
+ KLUDGE this by changing byte 4 from a 0xf (SERVICE)
+ to a 0x7 (SERVICE ACKNOWLEDGE) */
+ h->raw[h->crlen + 2] -= 0x8;
+ q931_xmit(pri, h, len, 1);
+ return 0;
+ }
+ c = q931_getcall(pri, q931_cr(h), 0);
+ if (!c) {
+ pri_error(pri, "Unable to locate call %d\n", q931_cr(h));
+ return -1;
+ }
+ /* Preliminary handling */
+ if ((h->pd == MAINTENANCE_PROTOCOL_DISCRIMINATOR_1) || (h->pd == MAINTENANCE_PROTOCOL_DISCRIMINATOR_2)) {
+ prepare_to_handle_maintenance_message(pri, mh, c);
+ } else {
+ prepare_to_handle_q931_message(pri, mh, c);
+ }
+
/* Handle IEs */
memset(mandies, 0, sizeof(mandies));
missingmand = 0;
@@ -3521,6 +3645,72 @@
}
/* Post handling */
+ if ((h->pd == MAINTENANCE_PROTOCOL_DISCRIMINATOR_1) || (h->pd == MAINTENANCE_PROTOCOL_DISCRIMINATOR_2)) {
+ res = post_handle_maintenance_message(pri, mh, c);
+ } else {
+ res = post_handle_q931_message(pri, mh, c, missingmand);
+ }
+ return res;
+}
+
+static int post_handle_maintenance_message(struct pri *pri, struct q931_mh *mh, struct q931_call *c)
+{
+ /* Do some maintenance stuff */
+ switch (mh->msg) {
+ case NATIONAL_SERVICE:
+ if (c->channelno > 0) {
+ pri->ev.e = PRI_EVENT_SERVICE;
+ pri->ev.service.channel = c->channelno | (c->ds1no << 8);
+ pri->ev.service.changestatus = 0x0f & c->changestatus;
+ } else {
+ switch (0x0f & c->changestatus) {
+ case SERVICE_CHANGE_STATUS_INSERVICE:
+ pri->ev.e = PRI_EVENT_DCHAN_UP;
+ q921_dchannel_up(pri);
+ break;
+ case SERVICE_CHANGE_STATUS_OUTOFSERVICE:
+ pri->ev.e = PRI_EVENT_DCHAN_DOWN;
+ q921_dchannel_down(pri);
+ break;
+ default:
+ pri_error(pri, "!! Don't know how to handle span service change status '%d'\n", (0x0f & c->changestatus));
+ return -1;
+ }
+ }
+ maintenance_service_ack(pri, c);
+ return Q931_RES_HAVEEVENT;
+ case NATIONAL_SERVICE_ACKNOWLEDGE:
+ if (c->channelno > 0) {
+ pri->ev.e = PRI_EVENT_SERVICE_ACK;
+ pri->ev.service_ack.channel = c->channelno | (c->ds1no << 8);
+ pri->ev.service_ack.changestatus = 0x0f & c->changestatus;
+ } else {
+ switch (0x0f & c->changestatus) {
+ case SERVICE_CHANGE_STATUS_INSERVICE:
+ pri->ev.e = PRI_EVENT_DCHAN_UP;
+ q921_dchannel_up(pri);
+ break;
+ case SERVICE_CHANGE_STATUS_OUTOFSERVICE:
+ pri->ev.e = PRI_EVENT_DCHAN_DOWN;
+ q921_dchannel_down(pri);
+ break;
+ default:
+ pri_error(pri, "!! Don't know how to handle span service change status '%d'\n", (0x0f & c->changestatus));
+ return -1;
+ }
+ }
+ return Q931_RES_HAVEEVENT;
+ default:
+ pri_error(pri, "!! Don't know how to post-handle maintenance message type %s (%d)\n", maintenance_msg2str(mh->msg), mh->msg);
+ }
+ return -1;
+}
+
+static int post_handle_q931_message(struct pri *pri, struct q931_mh *mh, struct q931_call *c, int missingmand)
+{
+ int res;
+ struct apdu_event *cur = NULL;
+
switch(mh->msg) {
case Q931_RESTART:
if (missingmand) {
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