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Decode GPRS SM Messages related to MBMS Context handling 

svn path=/trunk/; revision=32176
This commit is contained in:
Gerasimos Dimitriadis 2010-03-12 21:30:54 +00:00
parent 8ccdb36c75
commit 0b13ca1a48
1 changed files with 86 additions and 8 deletions
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94
epan/dissectors/packet-gsm_a_gm.c
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@ -5599,7 +5599,7 @@ dtap_sm_status(tvbuff_t *tvb, proto_tree *tree, guint32 offset, guint len)
}
/*
* [8] 9.5.22 Activate MBMS Context Request
* [9] 9.5.22 Activate MBMS Context Request
*/
static void
dtap_sm_act_mbms_req(tvbuff_t *tvb, proto_tree *tree, guint32 offset, guint len)
@ -5635,20 +5635,98 @@ dtap_sm_act_mbms_req(tvbuff_t *tvb, proto_tree *tree, guint32 offset, guint len)
}
/*
* [8] 9.5.23 Activate MBMS Context Accept
* [9] 9.5.23 Activate MBMS Context Accept
*/
static void
dtap_sm_act_mbms_acc(tvbuff_t *tvb, proto_tree *tree, guint32 offset, guint len)
{
guint32 curr_offset;
guint32 consumed;
guint curr_len;
curr_offset = offset;
curr_len = len;
gsm_a_dtap_pinfo->p2p_dir = P2P_DIR_SENT;
ELEM_MAND_LV(GSM_A_PDU_TYPE_GM, DE_TMGI, NULL);
ELEM_MAND_V(GSM_A_PDU_TYPE_GM, DE_LLC_SAPI );
ELEM_OPT_TLV( 0x35 , GSM_A_PDU_TYPE_GM, DE_MBMS_PROT_CONF_OPT , NULL);
EXTRANEOUS_DATA_CHECK(curr_len, 0);
}
/*
* [8] 9.5.24 Activate MBMS Context Reject
* [9] 9.5.24 Activate MBMS Context Reject
*/
static void
dtap_sm_act_mbms_rej(tvbuff_t *tvb, proto_tree *tree, guint32 offset, guint len)
{
guint32 curr_offset;
guint32 consumed;
guint curr_len;
curr_offset = offset;
curr_len = len;
gsm_a_dtap_pinfo->p2p_dir = P2P_DIR_SENT;
ELEM_MAND_V(GSM_A_PDU_TYPE_GM, DE_SM_CAUSE );
ELEM_OPT_TLV( 0x35 , GSM_A_PDU_TYPE_GM, DE_MBMS_PROT_CONF_OPT , NULL);
EXTRANEOUS_DATA_CHECK(curr_len, 0);
}
/*
* [8] 9.5.25 Request MBMS Context Activation
* [9] 9.5.25 Request MBMS Context Activation
*/
static void
dtap_sm_req_mbms_act(tvbuff_t *tvb, proto_tree *tree, guint32 offset, guint len)
{
guint32 curr_offset;
guint32 consumed;
guint curr_len;
curr_offset = offset;
curr_len = len;
gsm_a_dtap_pinfo->p2p_dir = P2P_DIR_SENT;
ELEM_MAND_V(GSM_A_PDU_TYPE_GM, DE_NET_SAPI );
ELEM_MAND_LV(GSM_A_PDU_TYPE_GM, DE_PD_PRO_ADDR , " - Offered multicast address" );
ELEM_MAND_LV(GSM_A_PDU_TYPE_GM, DE_ACC_POINT_NAME , NULL );
ELEM_OPT_TLV( 0x35 , GSM_A_PDU_TYPE_GM, DE_MBMS_PROT_CONF_OPT , NULL);
EXTRANEOUS_DATA_CHECK(curr_len, 0);
}
/*
* [8] 9.5.26 Request MBMS Context Activation Reject
*/
static void
dtap_sm_req_mbms_rej(tvbuff_t *tvb, proto_tree *tree, guint32 offset, guint len)
{
guint32 curr_offset;
guint32 consumed;
guint curr_len;
curr_offset = offset;
curr_len = len;
gsm_a_dtap_pinfo->p2p_dir = P2P_DIR_RECV;
ELEM_MAND_V(GSM_A_PDU_TYPE_GM, DE_SM_CAUSE );
ELEM_OPT_TLV( 0x35 , GSM_A_PDU_TYPE_GM, DE_MBMS_PROT_CONF_OPT , NULL);
EXTRANEOUS_DATA_CHECK(curr_len, 0);
}
#define NUM_GSM_DTAP_MSG_GMM (sizeof(gsm_a_dtap_msg_gmm_strings)/sizeof(value_string))
static gint ett_gsm_dtap_msg_gmm[NUM_GSM_DTAP_MSG_GMM];
@ -5704,10 +5782,10 @@ static void (*dtap_msg_sm_fcn[])(tvbuff_t *tvb, proto_tree *tree, guint32 offset
NULL, /* Reserved: was allocated in earlier phases of the protocol */
dtap_sm_status, /* SM Status */
dtap_sm_act_mbms_req, /* Activate MBMS Context Request */
NULL, /* Activate MBMS Context Accept */
NULL, /* Activate MBMS Context Reject */
NULL, /* Request MBMS Context Activation */
NULL, /* Request MBMS Context Activation Reject */
dtap_sm_act_mbms_acc, /* Activate MBMS Context Accept */
dtap_sm_act_mbms_rej, /* Activate MBMS Context Reject */
dtap_sm_req_mbms_act, /* Request MBMS Context Activation */
dtap_sm_req_mbms_rej, /* Request MBMS Context Activation Reject */
NULL, /* NONE */
};