Generic Advice of Charge.

Asterisk Generic AOC Representation
- Generic AOC encode/decode routines.
  (Generic AOC must be encoded to be passed on the wire in the AST_CONTROL_AOC frame)
- AST_CONTROL_AOC frame type to represent generic encoded AOC data
- Manager events for AOC-S, AOC-D, and AOC-E messages

Asterisk App Support
- app_dial AOC-S pass-through support on call setup
- app_queue AOC-S pass-through support on call setup

AOC Unit Tests
- AOC Unit Tests for encode/decode routines
- AOC Unit Test for manager event representation.

SIP AOC Support
- Pass-through of generic AOC-D and AOC-E messages to snom phones via the
  snom AOC specification.
- Creation of chan_sip page3 flags for the addition of the new
  'snom_aoc_enabled' sip.conf option.

IAX AOC Support
- Natively supports AOC pass-through through the use of the new
  AST_CONTROL_AOC frame type

DAHDI AOC Support
- ETSI PRI full AOC Pass-through support
- 'aoc_enable' chan_dahdi.conf option for independently enabling
  pass-through of AOC-S, AOC-D, AOC-E.
- 'aoce_delayhangup' option for retrieving AOC-E on disconnect.
- DAHDI A() dial string option for requesting AOC services.
  example usage:
  ;requests AOC-S, AOC-D, and AOC-E on call setup
  exten=>1111,1,Dial(DAHDI/g1/1112/A(s,d,e))

Review:	https://reviewboard.asterisk.org/r/552/


git-svn-id: http://svn.digium.com/svn/asterisk/trunk@267096 f38db490-d61c-443f-a65b-d21fe96a405b

1 files changed, 30 insertions, 0 deletions

diff --git a/apps/app_dial.c b/apps/app_dial.c
index 1422a4e02..d813c0068 100644
--- a/apps/app_dial.c
+++ b/apps/app_dial.c
@@ -62,6 +62,7 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 #include "asterisk/global_datastores.h"
 #include "asterisk/dsp.h"
 #include "asterisk/cel.h"
+#include "asterisk/aoc.h"
 #include "asterisk/ccss.h"
 #include "asterisk/indications.h"
 
@@ -638,6 +639,7 @@ struct chanlist {
 	struct ast_party_connected_line connected;
 	/*! TRUE if an AST_CONTROL_CONNECTED_LINE update was saved to the connected element. */
 	unsigned int pending_connected_update:1;
+	struct ast_aoc_decoded *aoc_s_rate_list;
 };
 
 static int detect_disconnect(struct ast_channel *chan, char code, struct ast_str *featurecode);
@@ -645,6 +647,7 @@ static int detect_disconnect(struct ast_channel *chan, char code, struct ast_str
 static void chanlist_free(struct chanlist *outgoing)
 {
 	ast_party_connected_line_free(&outgoing->connected);
+	ast_aoc_destroy_decoded(outgoing->aoc_s_rate_list);
 	ast_free(outgoing);
 }
 
@@ -1053,6 +1056,14 @@ static struct ast_channel *wait_for_answer(struct ast_channel *in,
 							ast_party_connected_line_free(&connected_caller);
 						}
 					}
+					if (o->aoc_s_rate_list) {
+						size_t encoded_size;
+						struct ast_aoc_encoded *encoded;
+						if ((encoded = ast_aoc_encode(o->aoc_s_rate_list, &encoded_size, o->chan))) {
+							ast_indicate_data(in, AST_CONTROL_AOC, encoded, encoded_size);
+							ast_aoc_destroy_encoded(encoded);
+						}
+					}
 					peer = c;
 					ast_copy_flags64(peerflags, o,
 						OPT_CALLEE_TRANSFER | OPT_CALLER_TRANSFER |
@@ -1115,6 +1126,14 @@ static struct ast_channel *wait_for_answer(struct ast_channel *in,
 								ast_party_connected_line_free(&connected_caller);
 							}
 						}
+						if (o->aoc_s_rate_list) {
+							size_t encoded_size;
+							struct ast_aoc_encoded *encoded;
+							if ((encoded = ast_aoc_encode(o->aoc_s_rate_list, &encoded_size, o->chan))) {
+								ast_indicate_data(in, AST_CONTROL_AOC, encoded, encoded_size);
+								ast_aoc_destroy_encoded(encoded);
+							}
+						}
 						peer = c;
 						if (peer->cdr) {
 							peer->cdr->answer = ast_tvnow();
@@ -1230,6 +1249,17 @@ static struct ast_channel *wait_for_answer(struct ast_channel *in,
 						}
 					}
 					break;
+				case AST_CONTROL_AOC:
+					{
+						struct ast_aoc_decoded *decoded = ast_aoc_decode(f->data.ptr, f->datalen, o->chan);
+						if (decoded && (ast_aoc_get_msg_type(decoded) == AST_AOC_S)) {
+							ast_aoc_destroy_decoded(o->aoc_s_rate_list);
+							o->aoc_s_rate_list = decoded;
+						} else {
+							ast_aoc_destroy_decoded(decoded);
+						}
+					}
+					break;
 				case AST_CONTROL_REDIRECTING:
 					if (ast_test_flag64(peerflags, OPT_IGNORE_CONNECTEDLINE)) {
 						ast_verb(3, "Redirecting update to %s prevented.\n", in->name);