diff options
| author | sahlberg <sahlberg@f5534014-38df-0310-8fa8-9805f1628bb7> | 2006-10-11 11:32:56 +0000 |
|---|---|---|
| committer | sahlberg <sahlberg@f5534014-38df-0310-8fa8-9805f1628bb7> | 2006-10-11 11:32:56 +0000 |
| commit | adc57c6dc032aa7176d13ddd5d53c54601eb2377 (patch) | |
| tree | 9c924e5bed1ebefb7904948da28fdc9747332c61 /epan/dissectors/packet-fcp.c | |
| parent | cff7ddc4599a1028d69e3ca14823759b97f126f9 (diff) | |
add a task_flags bitmap and two lengths (data and bidirectional data)
so that the two scsi transports FCP and ISCSI can provide the expected data transfer lengths to SCSI to allow SCSI reassembly.
NDMP does not really need these hints since for NDMP (and also iscsi-lite) there is conceptually always both data in and data out phases and there is never any fragmentation.
git-svn-id: http://anonsvn.wireshark.org/wireshark/trunk@19493 f5534014-38df-0310-8fa8-9805f1628bb7
Diffstat (limited to 'epan/dissectors/packet-fcp.c')
| -rw-r--r-- | epan/dissectors/packet-fcp.c | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/epan/dissectors/packet-fcp.c b/epan/dissectors/packet-fcp.c index c32499e93e..7cb5b1271b 100644 --- a/epan/dissectors/packet-fcp.c +++ b/epan/dissectors/packet-fcp.c @@ -61,6 +61,7 @@ static int hf_fcp_addlcdblen = -1; static int hf_fcp_rddata = -1; static int hf_fcp_wrdata = -1; static int hf_fcp_dl = -1; +static int hf_fcp_bidir_dl = -1; static int hf_fcp_data_ro = -1; static int hf_fcp_burstlen = -1; static int hf_fcp_rspflags = -1; @@ -397,7 +398,7 @@ dissect_fcp_cmnd(tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent_tree, pro int offset = 0; int len, add_len = 0; - guint8 flags, lun0; + guint8 flags, rwflags, lun0; guint16 lun=0xffff; tvbuff_t *cdb_tvb; int tvb_len, tvb_rlen; @@ -447,6 +448,15 @@ dissect_fcp_cmnd(tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent_tree, pro proto_tree_add_item(tree, hf_fcp_taskattr, tvb, offset+9, 1, 0); dissect_task_mgmt_flags(pinfo, tree, tvb, offset+10); proto_tree_add_item(tree, hf_fcp_addlcdblen, tvb, offset+11, 1, 0); + rwflags=tvb_get_guint8(tvb, offset+11); + if(fchdr->itlq){ + if(rwflags&0x02){ + fchdr->itlq->task_flags|=SCSI_DATA_READ; + } + if(rwflags&0x01){ + fchdr->itlq->task_flags|=SCSI_DATA_WRITE; + } + } proto_tree_add_item(tree, hf_fcp_rddata, tvb, offset+11, 1, 0); proto_tree_add_item(tree, hf_fcp_wrdata, tvb, offset+11, 1, 0); @@ -461,6 +471,20 @@ dissect_fcp_cmnd(tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent_tree, pro proto_tree_add_item(tree, hf_fcp_dl, tvb, offset+12+16+add_len, 4, 0); + if(fchdr->itlq){ + fchdr->itlq->data_length=tvb_get_ntohl(tvb, offset+12+16+add_len); + } + + if( ((rwflags&0x03)==0x03) + && tvb_length_remaining(tvb, offset+12+16+add_len+4)>=4){ + proto_tree_add_item(tree, hf_fcp_bidir_dl, tvb, offset+12+16+add_len+4, + 4, 0); + if(fchdr->itlq){ + fchdr->itlq->bidir_data_length=tvb_get_ntohl(tvb, offset+12+16+add_len+4); + } + + } + } static void @@ -713,6 +737,8 @@ proto_register_fcp (void) {"WRDATA", "fcp.wrdata", FT_BOOLEAN, 8, NULL, 0x01, "", HFILL}}, { &hf_fcp_dl, {"FCP_DL", "fcp.dl", FT_UINT32, BASE_DEC, NULL, 0x0, "", HFILL}}, + { &hf_fcp_bidir_dl, + {"FCP_BIDIRECTIONAL_READ_DL", "fcp.bidir_dl", FT_UINT32, BASE_DEC, NULL, 0x0, "", HFILL}}, { &hf_fcp_data_ro, {"FCP_DATA_RO", "fcp.data_ro", FT_UINT32, BASE_DEC, NULL, 0x0, "", HFILL}}, |