From e1d506778994c6f844d60c903d7cdeb2ffc74925 Mon Sep 17 00:00:00 2001 From: Holger Hans Peter Freyther Date: Fri, 26 Feb 2010 19:26:35 +0100 Subject: [sccp] Implement parsing the rather easy IT messages. --- openbsc/src/sccp/sccp.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) (limited to 'openbsc/src') diff --git a/openbsc/src/sccp/sccp.c b/openbsc/src/sccp/sccp.c index 94fd0175c..80f86c4fa 100644 --- a/openbsc/src/sccp/sccp.c +++ b/openbsc/src/sccp/sccp.c @@ -470,6 +470,25 @@ int _sccp_parse_udt(struct msgb *msgb, struct sccp_parse_result *result) return 0; } +static int _sccp_parse_it(struct msgb *msgb, struct sccp_parse_result *result) +{ + static const u_int32_t header_size = sizeof(struct sccp_data_it); + + struct sccp_data_it *it; + + if (msgb_l2len(msgb) < header_size) { + DEBUGP(DSCCP, "msgb < header_size %u %u\n", + msgb_l2len(msgb), header_size); + return -1; + } + + it = (struct sccp_data_it *) msgb->l2h; + result->data_len = 0; + result->source_local_reference = &it->source_local_reference; + result->destination_local_reference = &it->destination_local_reference; + return 0; +} + /* * Send UDT. Currently we have a fixed address... @@ -1306,8 +1325,12 @@ int sccp_parse_header(struct msgb *msg, struct sccp_parse_result *result) case SCCP_MSG_TYPE_UDT: return _sccp_parse_udt(msg, result); break; + case SCCP_MSG_TYPE_IT: + return _sccp_parse_it(msg, result); + break; }; + LOGP(DSCCP, LOGL_ERROR, "Unimplemented MSG Type: 0x%x\n", type); return -1; } -- cgit v1.2.3