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wireshark/wireshark-1.1.2-nfs41-backchnl-decode.patch

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NFSv4.1: Add support for backchannel decoding
2009-02-15 13:43:57 +00:00
diff -up wireshark-1.1.2/epan/dissectors/packet-nfs.c.orig wireshark-1.1.2/epan/dissectors/packet-nfs.c
--- wireshark-1.1.2/epan/dissectors/packet-nfs.c.orig 2009-02-15 08:22:57.000000000 -0500
+++ wireshark-1.1.2/epan/dissectors/packet-nfs.c 2009-02-15 08:31:28.000000000 -0500
@@ -652,6 +652,8 @@ static emem_tree_t *nfs_file_handles = N
static int dissect_nfs_stateid4(tvbuff_t *tvb, int offset, proto_tree *tree);
+static void reg_callback(int cbprog);
+
/* This function will store one nfs filehandle in our global tree of
* filehandles.
* We store all filehandles we see in this tree so that every unique
@@ -8648,6 +8650,7 @@ dissect_nfs_argop4(tvbuff_t *tvb, int of
proto_item *fitem;
proto_tree *ftree = NULL;
proto_tree *newftree = NULL;
+ int cbprog;
ops = tvb_get_ntohl(tvb, offset+0);
@@ -8969,6 +8972,8 @@ dissect_nfs_argop4(tvbuff_t *tvb, int of
hf_nfs_create_session_flags4, offset);
offset = dissect_rpc_chanattrs4(tvb, offset, newftree);
offset = dissect_rpc_chanattrs4(tvb, offset, newftree);
+ cbprog = tvb_get_ntohl(tvb, offset);
+ reg_callback(cbprog);
offset = dissect_rpc_uint32(tvb, newftree,
hf_nfs_cb_program, offset);
offset = dissect_rpc_secparms4(tvb, offset, newftree);
@@ -9612,6 +9617,313 @@ static const value_string layoutreturn_n
{ 0, NULL }
};
+static const value_string layoutrecall_names[] = {
+ { 1, "RECALL_FILE"},
+ { 2, "RECALL_FSID"},
+ { 3, "RECALL_ALL"},
+ { 0, NULL }
+};
+
+/* NFS Callback */
+static int hf_nfs_cb_procedure = -1;
+static int hf_nfs_cb_argop = -1;
+static int hf_nfs_cb_resop = -1;
+static int hf_nfs_cb_truncate = -1;
+static int hf_nfs_cb_layoutrecall_type = -1;
+static int hf_nfs_cb_clorachanged = -1;
+
+static gint ett_nfs_cb_argop = -1;
+static gint ett_nfs_cb_resop = -1;
+static gint ett_nfs_cb_getattr = -1;
+static gint ett_nfs_cb_recall = -1;
+static gint ett_nfs_cb_layoutrecall = -1;
+static gint ett_nfs_cb_pushdeleg = -1;
+static gint ett_nfs_cb_recallany = -1;
+static gint ett_nfs_cb_recallableobjavail = -1;
+static gint ett_nfs_cb_recallslot = -1;
+static gint ett_nfs_cb_sequence = -1;
+static gint ett_nfs_cb_wantscancelled = -1;
+static gint ett_nfs_cb_notifylock = -1;
+static gint ett_nfs_cb_notifydeviceid = -1;
+static gint ett_nfs_cb_notify = -1;
+static gint ett_nfs_cb_illegal = -1;
+
+static const value_string names_nfs_cb_operation[] = {
+ { NFS4_OP_CB_GETATTR, "CB_GETATTR" },
+ { NFS4_OP_CB_RECALL, "CB_RECALL" },
+ { NFS4_OP_CB_LAYOUTRECALL, "CB_LAYOUTRECALL" },
+ { NFS4_OP_CB_NOTIFY, "CB_NOTIFY" },
+ { NFS4_OP_CB_PUSH_DELEG, "CB_PUSH_DELEG" },
+ { NFS4_OP_CB_RECALL_ANY, "CB_RECALL_ANY" },
+ { NFS4_OP_CB_RECALLABLE_OBJ_AVAIL, "CB_RECALLABLE_OBJ_AVAIL" },
+ { NFS4_OP_CB_RECALL_SLOT, "CB_RECALL_SLOT"},
+ { NFS4_OP_CB_SEQUENCE, "CB_SEQUENCE" },
+ { NFS4_OP_CB_WANTS_CANCELLED, "CB_WANTS_CANCELLED" },
+ { NFS4_OP_CB_NOTIFY_LOCK, "CB_NOTIFY_LOCK"},
+ { NFS4_OP_CB_NOTIFY_DEVICEID, "CB_NOTIFY_DEVICEID" },
+ { NFS4_OP_CB_ILLEGAL, "CB_ILLEGAL"},
+ { 0, NULL }
+};
+
+gint *nfs_cb_operation_ett[] =
+{
+ &ett_nfs_cb_getattr,
+ &ett_nfs_cb_recall,
+ &ett_nfs_cb_layoutrecall,
+ &ett_nfs_cb_notify,
+ &ett_nfs_cb_pushdeleg,
+ &ett_nfs_cb_recallany,
+ &ett_nfs_cb_recallableobjavail,
+ &ett_nfs_cb_recallslot,
+ &ett_nfs_cb_sequence,
+ &ett_nfs_cb_wantscancelled,
+ &ett_nfs_cb_notifylock,
+ &ett_nfs_cb_notifydeviceid,
+ &ett_nfs_cb_illegal
+};
+
+static int
+dissect_nfs_cb_layoutrecall(tvbuff_t *tvb, int offset, proto_tree *tree, packet_info *pinfo)
+{
+ guint recalltype = hf_nfs_layouttype4;
+
+ if (recalltype == 1) { /* RETURN_FILE */
+ offset = dissect_nfs_fh4(tvb, offset, pinfo, tree, "filehandle");
+ offset = dissect_rpc_uint64(tvb, tree, hf_nfs_offset4, offset);
+ offset = dissect_rpc_uint64(tvb, tree, hf_nfs_length4, offset);
+ offset = dissect_nfs_stateid4(tvb, offset, tree);
+ } else if (recalltype == 2) { /* RETURN_FSID */
+ offset = dissect_nfs_fsid4(tvb, offset, tree, "fsid");
+ }
+
+ return offset;
+}
+
+static int
+dissect_nfs_cb_argop(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree)
+{
+ guint32 ops, ops_counter;
+ guint opcode;
+ proto_item *fitem;
+ proto_tree *ftree = NULL;
+ proto_tree *newftree = NULL;
+
+ ops = tvb_get_ntohl(tvb, offset+0);
+
+ fitem = proto_tree_add_text(tree, tvb, offset, 4, "Operations (count: %u)", ops);
+ offset += 4;
+
+ if (fitem)
+ ftree = proto_item_add_subtree(fitem, ett_nfs_cb_argop);
+
+ for (ops_counter=0; ops_counter<ops; ops_counter++)
+ {
+ opcode = tvb_get_ntohl(tvb, offset);
+ if (check_col(pinfo->cinfo, COL_INFO))
+ col_append_fstr(pinfo->cinfo, COL_INFO, "%c%s", ops_counter==0?' ':';',
+ val_to_str(opcode, names_nfs_cb_operation, "Unknown"));
+
+ fitem = proto_tree_add_uint(ftree, hf_nfs_cb_argop, tvb, offset, 4, opcode);
+ offset += 4;
+
+ /* the opcodes are not contiguous */
+ if ((opcode < NFS4_OP_CB_GETATTR || opcode > NFS4_OP_CB_NOTIFY_DEVICEID) &&
+ (opcode != NFS4_OP_CB_ILLEGAL))
+ break;
+
+ /* all of the V4 ops are contiguous, except for NFS4_OP_ILLEGAL */
+ if (opcode == NFS4_OP_CB_ILLEGAL)
+ newftree = proto_item_add_subtree(fitem, ett_nfs_cb_illegal);
+ else if (nfs_cb_operation_ett[opcode - 3])
+ newftree = proto_item_add_subtree(fitem, *nfs_cb_operation_ett[opcode - 3]);
+ else
+ break;
+
+ switch (opcode)
+ {
+ case NFS4_OP_CB_RECALL:
+ offset = dissect_nfs_stateid4(tvb, offset, newftree);
+ offset = dissect_rpc_bool(tvb, newftree, hf_nfs_cb_truncate, offset);
+ offset = dissect_nfs_fh4(tvb, offset, pinfo, newftree, "filehandle");
+ break;
+ case NFS4_OP_CB_GETATTR:
+ case NFS4_OP_CB_LAYOUTRECALL:
+ offset = dissect_rpc_uint32(tvb, newftree, hf_nfs_layouttype4, offset);
+ offset = dissect_rpc_uint32(tvb, newftree, hf_nfs_iomode4, offset);
+ offset = dissect_rpc_bool(tvb, newftree, hf_nfs_cb_clorachanged, offset);
+ offset = dissect_nfs_cb_layoutrecall(tvb, offset, newftree, pinfo);
+ break;
+ case NFS4_OP_CB_NOTIFY:
+ case NFS4_OP_CB_PUSH_DELEG:
+ case NFS4_OP_CB_RECALL_ANY:
+ case NFS4_OP_CB_RECALLABLE_OBJ_AVAIL:
+ case NFS4_OP_CB_RECALL_SLOT:
+ break;
+ case NFS4_OP_CB_SEQUENCE:
+ offset = dissect_rpc_opaque_data(tvb, offset, newftree, NULL, hf_nfs_sessionid4,
+ TRUE, 16, FALSE, NULL, NULL);
+ offset = dissect_rpc_uint32(tvb, newftree, hf_nfs_seqid4, offset);
+ offset = dissect_rpc_uint32(tvb, newftree, hf_nfs_slotid4, offset);
+ offset = dissect_rpc_uint32(tvb, newftree, hf_nfs_slotid4, offset);
+ offset = dissect_rpc_bool(tvb, newftree, hf_nfs_cachethis4, offset);
+ /* skip refs -- assume 0 */
+ offset = offset + 4;
+ break;
+ case NFS4_OP_CB_WANTS_CANCELLED:
+ case NFS4_OP_CB_NOTIFY_LOCK:
+ case NFS4_OP_CB_NOTIFY_DEVICEID:
+ break;
+ case NFS4_OP_ILLEGAL:
+ break;
+ default:
+ break;
+ }
+ }
+
+ return offset;
+}
+
+static int
+dissect_nfs_cb_compound_call(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree* tree)
+{
+ char *tag=NULL;
+
+ offset = dissect_nfs_utf8string(tvb, offset, tree, hf_nfs_tag4, &tag);
+
+ if (check_col(pinfo->cinfo, COL_INFO))
+ col_append_fstr(pinfo->cinfo, COL_INFO," %s", tag);
+
+ offset = dissect_rpc_uint32(tvb, tree, hf_nfs_minorversion, offset);
+ offset = dissect_rpc_uint32(tvb, tree, hf_nfs_callback_ident, offset);
+ offset = dissect_nfs_cb_argop(tvb, offset, pinfo, tree);
+
+ return offset;
+}
+
+static int
+dissect_nfs_cb_resop(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree)
+{
+ guint32 ops, ops_counter;
+ guint32 opcode;
+ proto_item *fitem;
+ proto_tree *ftree = NULL;
+ proto_tree *newftree = NULL;
+ guint32 status;
+
+ ops = tvb_get_ntohl(tvb, offset+0);
+ fitem = proto_tree_add_text(tree, tvb, offset, 4, "Operations (count: %u)", ops);
+ offset += 4;
+
+ if (fitem)
+ ftree = proto_item_add_subtree(fitem, ett_nfs_cb_resop);
+
+ for (ops_counter = 0; ops_counter < ops; ops_counter++)
+ {
+ opcode = tvb_get_ntohl(tvb, offset);
+
+ /* sanity check for bogus packets */
+ if ((opcode < NFS4_OP_CB_GETATTR || opcode > NFS4_OP_CB_NOTIFY_DEVICEID) &&
+ (opcode != NFS4_OP_ILLEGAL))
+ break;
+
+ if (check_col(pinfo->cinfo, COL_INFO))
+ col_append_fstr(pinfo->cinfo, COL_INFO, "%c%s", ops_counter==0?' ':';',
+ val_to_str(opcode, names_nfs_cb_operation, "Unknown"));
+
+ fitem = proto_tree_add_uint(ftree, hf_nfs_cb_resop, tvb, offset, 4, opcode);
+ offset += 4;
+
+ /* all of the V4 ops are contiguous, except for NFS4_OP_ILLEGAL */
+ if (opcode == NFS4_OP_ILLEGAL)
+ newftree = proto_item_add_subtree(fitem, ett_nfs_illegal4);
+ else if (nfs_cb_operation_ett[opcode - 3])
+ newftree = proto_item_add_subtree(fitem, *nfs_cb_operation_ett[opcode - 3]);
+ else
+ break;
+
+ offset = dissect_nfs_nfsstat4(tvb, offset, newftree, &status);
+
+ /* are there any ops that return data with a failure (?) */
+ if (status != NFS4_OK)
+ continue;
+
+ /* These parsing routines are only executed if the status is NFS4_OK */
+ switch (opcode)
+ {
+ case NFS4_OP_CB_RECALL:
+ break;
+ case NFS4_OP_CB_GETATTR:
+ case NFS4_OP_CB_LAYOUTRECALL:
+ break;
+ case NFS4_OP_CB_NOTIFY:
+ case NFS4_OP_CB_PUSH_DELEG:
+ case NFS4_OP_CB_RECALL_ANY:
+ case NFS4_OP_CB_RECALLABLE_OBJ_AVAIL:
+ case NFS4_OP_CB_RECALL_SLOT:
+ break;
+ case NFS4_OP_CB_SEQUENCE:
+ offset = dissect_rpc_opaque_data(tvb, offset, newftree, NULL,
+ hf_nfs_sessionid4, TRUE, 16,
+ FALSE, NULL, NULL);
+ offset = dissect_rpc_uint32(tvb, newftree, hf_nfs_seqid4, offset);
+ offset = dissect_rpc_uint32(tvb, newftree, hf_nfs_slotid4, offset);
+ offset = dissect_rpc_uint32(tvb, newftree, hf_nfs_slotid4, offset);
+ offset = dissect_rpc_uint32(tvb, newftree, hf_nfs_slotid4, offset);
+ break;
+ case NFS4_OP_CB_WANTS_CANCELLED:
+ case NFS4_OP_CB_NOTIFY_LOCK:
+ case NFS4_OP_CB_NOTIFY_DEVICEID:
+ break;
+ case NFS4_OP_ILLEGAL:
+ break;
+ default:
+ break;
+ }
+ }
+
+ return offset;
+}
+
+static int
+dissect_nfs_cb_compound_reply(tvbuff_t *tvb, int offset, packet_info *pinfo,
+ proto_tree* tree)
+{
+ guint32 status;
+ char *tag=NULL;
+
+ offset = dissect_nfs_nfsstat4(tvb, offset, tree, &status);
+ offset = dissect_nfs_utf8string(tvb, offset, tree, hf_nfs_tag4, &tag);
+ if (check_col(pinfo->cinfo, COL_INFO))
+ col_append_fstr(pinfo->cinfo, COL_INFO," %s", tag);
+
+ offset = dissect_nfs_cb_resop(tvb, offset, pinfo, tree);
+
+ return offset;
+}
+
+static const vsff nfs_cb_proc[] = {
+ { 0, "CB_NULL",
+ dissect_nfs3_null_call, dissect_nfs3_null_reply },
+ { 1, "CB_COMPOUND",
+ dissect_nfs_cb_compound_call, dissect_nfs_cb_compound_reply },
+ { 0, NULL, NULL, NULL }
+};
+
+static const value_string nfs_cb_proc_vals[] = {
+ { 0, "CB_NULL" },
+ { 1, "CB_COMPOUND" },
+ { 0, NULL }
+};
+
+void reg_callback(int cbprog)
+{
+ /* Register the protocol as RPC */
+ rpc_init_prog(proto_nfs, cbprog, ett_nfs);
+
+ /* Register the procedure tables */
+ rpc_init_proc_table(cbprog, 1, nfs_cb_proc, hf_nfs_cb_procedure);
+}
+
void
proto_register_nfs(void)
{
@@ -10964,10 +11276,29 @@ proto_register_nfs(void)
{ &hf_nfs_cachethis4, {
"Cache this?", "nfs.cachethis4", FT_BOOLEAN, BASE_NONE,
TFS(&tfs_yes_no), 0, NULL, HFILL }},
-
+
+ { &hf_nfs_cb_procedure, {
+ "CB Procedure", "nfs.cb_procedure", FT_UINT32, BASE_DEC,
+ VALS(nfs_cb_proc_vals), 0, NULL, HFILL }},
+
+ { &hf_nfs_cb_argop, {
+ "Opcode", "nfs.call.operation", FT_UINT32, BASE_DEC,
+ VALS(names_nfs_cb_operation), 0, NULL, HFILL }},
+ { &hf_nfs_cb_resop, {
+ "Opcode", "nfs.reply.operation", FT_UINT32, BASE_DEC,
+ VALS(names_nfs_cb_operation), 0, NULL, HFILL }},
{ &hf_nfs_lrs_present, {
"Stateid present?", "nfs.lrs_present", FT_BOOLEAN, BASE_NONE,
TFS(&tfs_yes_no), 0, NULL, HFILL }},
+ { &hf_nfs_cb_truncate, {
+ "Truncate?", "nfs.truncate", FT_BOOLEAN, BASE_NONE,
+ TFS(&tfs_yes_no), 0, NULL, HFILL }},
+ { &hf_nfs_cb_layoutrecall_type, {
+ "recall type", "nfs.recalltype", FT_UINT32, BASE_DEC,
+ VALS(layoutrecall_names), 0, NULL, HFILL }},
+ { &hf_nfs_cb_clorachanged, {
+ "Clora changed", "nfs.clorachanged", FT_BOOLEAN, BASE_NONE,
+ TFS(&tfs_yes_no), 0, NULL, HFILL }},
/* Hidden field for v2, v3, and v4 status */
{ &hf_nfs_nfsstat, {
@@ -11132,8 +11463,23 @@ proto_register_nfs(void)
&ett_nfs_gid4,
&ett_nfs_service4,
&ett_nfs_sessionid4,
- &ett_nfs_layoutseg,
- &ett_nfs_layoutseg_fh
+ &ett_nfs_layoutseg,
+ &ett_nfs_layoutseg_fh,
+ &ett_nfs_cb_argop,
+ &ett_nfs_cb_resop,
+ &ett_nfs_cb_getattr,
+ &ett_nfs_cb_recall,
+ &ett_nfs_cb_layoutrecall,
+ &ett_nfs_cb_pushdeleg,
+ &ett_nfs_cb_recallany,
+ &ett_nfs_cb_recallableobjavail,
+ &ett_nfs_cb_recallslot,
+ &ett_nfs_cb_sequence,
+ &ett_nfs_cb_wantscancelled,
+ &ett_nfs_cb_notifylock,
+ &ett_nfs_cb_notifydeviceid,
+ &ett_nfs_cb_notify,
+ &ett_nfs_cb_illegal,
};
module_t *nfs_module;
@@ -11169,9 +11515,9 @@ proto_register_nfs(void)
nfs_file_handles=se_tree_create(EMEM_TREE_TYPE_RED_BLACK, "nfs_file_handles");
nfs_fhandle_frame_table=se_tree_create(EMEM_TREE_TYPE_RED_BLACK, "nfs_fhandle_frame_table");
register_init_routine(nfs_name_snoop_init);
-
}
+
void
proto_reg_handoff_nfs(void)
{
@@ -11179,7 +11525,7 @@ proto_reg_handoff_nfs(void)
/* Register the protocol as RPC */
rpc_init_prog(proto_nfs, NFS_PROGRAM, ett_nfs);
-
+
/* Register the procedure tables */
rpc_init_proc_table(NFS_PROGRAM, 2, nfs2_proc, hf_nfs_procedure_v2);
rpc_init_proc_table(NFS_PROGRAM, 3, nfs3_proc, hf_nfs_procedure_v3);
@@ -11208,7 +11554,4 @@ proto_reg_handoff_nfs(void)
fhandle_handle=create_dissector_handle(dissect_fhandle_data_unknown, proto_nfs);
dissector_add("nfs_fhandle.type", FHT_UNKNOWN, fhandle_handle);
-
-
}
-
diff -up wireshark-1.1.2/epan/dissectors/packet-nfs.h.orig wireshark-1.1.2/epan/dissectors/packet-nfs.h
--- wireshark-1.1.2/epan/dissectors/packet-nfs.h.orig 2009-01-15 10:28:17.000000000 -0500
+++ wireshark-1.1.2/epan/dissectors/packet-nfs.h 2009-02-15 08:31:28.000000000 -0500
@@ -127,6 +127,23 @@
#define NFS4_OP_ILLEGAL 10044
+/*
+ * NFSv41 callback ops
+ */
+#define NFS4_OP_CB_GETATTR 3
+#define NFS4_OP_CB_RECALL 4
+#define NFS4_OP_CB_LAYOUTRECALL 5
+#define NFS4_OP_CB_NOTIFY 6
+#define NFS4_OP_CB_PUSH_DELEG 7
+#define NFS4_OP_CB_RECALL_ANY 8
+#define NFS4_OP_CB_RECALLABLE_OBJ_AVAIL 9
+#define NFS4_OP_CB_RECALL_SLOT 10
+#define NFS4_OP_CB_SEQUENCE 11
+#define NFS4_OP_CB_WANTS_CANCELLED 12
+#define NFS4_OP_CB_NOTIFY_LOCK 13
+#define NFS4_OP_CB_NOTIFY_DEVICEID 14
+#define NFS4_OP_CB_ILLEGAL 10044
+
/* for write */
#define UNSTABLE 0
#define DATA_SYNC 1
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