From b6811a3bc206941d71c41930fe5a7a054573fce9 Mon Sep 17 00:00:00 2001
From: MelwareDE <armin@melware.de>
Date: Fri, 15 Oct 2010 14:43:58 +0000
Subject: [PATCH] Add MWI Client

---
 CHANGES                   |  1 +
 README.mwi                |  9 +++++
 chan_capi_supplementary.c | 77 +++++++++++++++++++++++++++++++++++++++
 3 files changed, 87 insertions(+)

diff --git a/CHANGES b/CHANGES
index 2057532..8afb3f2 100644
--- a/CHANGES
+++ b/CHANGES
@@ -22,6 +22,7 @@ HEAD
 - added faxdestination= to capi.conf to configure custom context,exten,prio.
 - allow capicommand option separator "|" and ",".
 - Add MWI server
+- Add MWI client
 
 chan_capi-1.1.5
 ------------------
diff --git a/README.mwi b/README.mwi
index 511b48d..1e562d2 100644
--- a/README.mwi
+++ b/README.mwi
@@ -74,6 +74,15 @@ exten => _X.,n,capicommand(mwi,xmit,deactivate|1|1|2|1|0|0|41|1|0|0|41)
 Please refer to COMMON-ISDN-API Version 2.0 Part III Supplementary Services for more details
 on parameters.
 
++-------------------------------------------------------------------+
+|  Receive MWI messages (MWI Client)                                |
++-------------------------------------------------------------------+
+
+Upon reception of MWI Activate messages from network chan_capi automatically
+generates Asterisk MWI events for mailbox N@CAPI_Remote, where N is the
+received as part of MWI Activate message Calling Party Number.
+
+
 +-------------------------------------------------------------------+
 |  Notes                                                            |
 +-------------------------------------------------------------------+
diff --git a/chan_capi_supplementary.c b/chan_capi_supplementary.c
index 9b63c43..19ec728 100644
--- a/chan_capi_supplementary.c
+++ b/chan_capi_supplementary.c
@@ -18,6 +18,9 @@
 #include "chan_capi.h"
 #include "chan_capi_supplementary.h"
 #include "chan_capi_utils.h"
+#if defined(CC_AST_HAS_EVENT_MWI)
+#include <asterisk/event.h>
+#endif
 
 
 #define CCBSNR_TYPE_CCBS 1
@@ -571,6 +574,80 @@ int handle_facility_indication_supplementary(
 		cc_verbose(1, 1, VERBOSE_PREFIX_3 "contr%d: PLCI=%#x CCBS B-free ref=0x%04x\n",
 			PLCI & 0xff, PLCI, infoword);
 		break;
+	case 0x8014: {/* MWI indication, stateless */
+		const unsigned char* info = &FACILITY_IND_FACILITYINDICATIONPARAMETER(CMSG)[4];
+		unsigned short basicService     = read_capi_word(info);  info += 2;
+		unsigned int   numberOfMessages = read_capi_dword(info); info += 4;
+		unsigned short messageStatus    = read_capi_word(info);  info += 2;
+		unsigned short messageReference = read_capi_word(info);  info += 2;
+		char controllingUserNumberName[AST_MAX_EXTENSION];
+		char controllingUserProvidedNumberName[AST_MAX_EXTENSION];
+		char mwiTimeName[AST_MAX_EXTENSION];
+		char mailboxName[AST_MAX_EXTENSION];
+
+		if (info[0] > 3) {
+			memcpy(controllingUserNumberName,
+						&info[4],
+						MIN(AST_MAX_EXTENSION-1, info[0] - 3));
+			controllingUserNumberName[MIN(AST_MAX_EXTENSION-1, info[0] - 3)] = 0;
+		} else {
+			controllingUserNumberName[0] = 0;
+		}
+		info += info[0] + 1;
+
+		if (info[0] > 3) {
+			memcpy(controllingUserProvidedNumberName,
+						&info[4],
+						MIN(AST_MAX_EXTENSION-1, info[0] - 3));
+			controllingUserProvidedNumberName[MIN(AST_MAX_EXTENSION-1, info[0] - 3)] = 0;
+		} else {
+			controllingUserProvidedNumberName[0] = 0;
+		}
+		info += info[0] + 1;
+
+		if (info[0] != 0) {
+			memcpy(mwiTimeName, &info[1], MIN(AST_MAX_EXTENSION-1, info[0]));
+			mwiTimeName[MIN(AST_MAX_EXTENSION-1, info[0])] = 0;
+		} else {
+			mwiTimeName[0] = 0;
+		}
+		info += info[0] + 1;
+
+		if (info[0] > 1) {
+			memcpy(mailboxName, &info[2], MIN(AST_MAX_EXTENSION-1, info[0]));
+			mailboxName[MIN(AST_MAX_EXTENSION-1, info[0]-1)] = 0;
+		} else {
+			mailboxName[0] = 0;
+		}
+
+		if (messageStatus == 0 || messageStatus == 1) {
+			cc_verbose(4, 0, VERBOSE_PREFIX_4 "CAPI%u Rx MWI %s for '%s@CAPI_Remote %s %s time '%s' %d messages ref %d service %d\n",
+								PLCI & 0xff,
+								messageStatus == 0 ? "add" : "del", mailboxName, controllingUserNumberName, controllingUserProvidedNumberName,
+                mwiTimeName, numberOfMessages, messageReference, basicService);
+			if (messageStatus == 0 && mailboxName[0] != 0) {
+#if defined(CC_AST_HAS_EVENT_MWI)
+				struct ast_event *event;
+
+				if ((event = ast_event_new(AST_EVENT_MWI,
+																		AST_EVENT_IE_MAILBOX, AST_EVENT_IE_PLTYPE_STR, mailboxName,
+																		AST_EVENT_IE_CONTEXT, AST_EVENT_IE_PLTYPE_STR, "CAPI_Remote",
+																		AST_EVENT_IE_NEWMSGS, AST_EVENT_IE_PLTYPE_UINT, MAX(1,numberOfMessages),
+																		AST_EVENT_IE_OLDMSGS, AST_EVENT_IE_PLTYPE_UINT, 0,
+																		AST_EVENT_IE_END))) {
+					ast_event_queue_and_cache(event);
+				}
+#endif
+			}
+		} else {
+			cc_verbose(4, 0, VERBOSE_PREFIX_1 "CAPI%u Rx MWI %s for '%s@default %s %s time '%s' service %d",
+								messageStatus == 0 ? "add" : "del", mailboxName, controllingUserNumberName, controllingUserProvidedNumberName,
+								mwiTimeName, basicService);
+		}
+	} return ret;
+
+	default:
+		break;
 	}
 
 	if (!i) {