/* packet-nlm.c
* Routines for nlm dissection
*
- * $Id: packet-nlm.c,v 1.6 2000/08/02 11:36:18 girlich Exp $
+ * $Id: packet-nlm.c,v 1.7 2000/08/08 06:22:08 girlich Exp $
*
* Ethereal - Network traffic analyzer
* By Gerald Combs <gerald@zing.org>
#include "packet-rpc.h"
+#include "packet-nfs.h"
#include "packet-nlm.h"
+/*
+ * NFS Lock Manager protocol specs can only be found in actual
+ * implementations or in the nice book:
+ * Brent Callaghan: "NFS Illustrated", Addison-Wesley, ISBN 0-201-32570-5
+ * which I use here as reference (BC).
+ */
static int proto_nlm = -1;
+static int hf_nlm_cookie = -1;
+static int hf_nlm_block = -1;
+static int hf_nlm_exclusive = -1;
+static int hf_nlm_lock = -1;
+static int hf_nlm_lock_caller_name = -1;
+static int hf_nlm_lock_owner = -1;
+static int hf_nlm_lock_svid = -1;
+static int hf_nlm_lock_l_offset = -1;
+static int hf_nlm_lock_l_len = -1;
+static int hf_nlm_reclaim = -1;
+static int hf_nlm_state = -1;
+
static gint ett_nlm = -1;
+static gint ett_nlm_lock = -1;
+
+
+const value_string names_nlm_state[] =
+{
+ /* NLM_GRANTED is the function number 5 and the state code 0.
+ * So we use for the state the postfix _S.
+ */
+#define NLM_GRANTED_S 0
+ { NLM_GRANTED_S, "NLM_GRANTED" },
+#define NLM_DENIED 1
+ { NLM_DENIED, "NLM_DENIED" },
+#define NLM_DENIED_NOLOCKS 2
+ { NLM_DENIED_NOLOCKS, "NLM_DENIED_NOLOCKS" },
+#define NLM_BLOCKED 3
+ { NLM_BLOCKED, "NLM_BLOCKED" },
+#define NLM_DENIED_GRACE_PERIOD 4
+ { NLM_DENIED_GRACE_PERIOD, "NLM_DENIED_GRACE_PERIOD" },
+#define NLM_DEADLCK 5
+ { NLM_DEADLCK, "NLM_DEADLCK" },
+#define NLM_ROFS 6
+ { NLM_ROFS, "NLM_ROFS" },
+#define NLM_STALE_FH 7
+ { NLM_STALE_FH, "NLM_STALE_FH" },
+#define NLM_BIG 8
+ { NLM_BIG, "NLM_BIG" },
+#define NLM_FAILED 9
+ { NLM_FAILED, "NLM_FAILED" },
+ { 0, NULL }
+};
+
+
+/* generic dissecting functions */
+
+static int
+dissect_nlm_lock(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int version, int offset)
+{
+ proto_item* lock_item = NULL;
+ proto_tree* lock_tree = NULL;
+ const guint8 *pd;
+ int compat_offset;
+
+ tvb_compat(tvb, &pd, &compat_offset);
+
+ if (tree) {
+ lock_item = proto_tree_add_item(tree, hf_nlm_lock, tvb,
+ offset, tvb_length_remaining(tvb, offset), FALSE);
+ if (lock_item)
+ lock_tree = proto_item_add_subtree(lock_item, ett_nlm_lock);
+ }
+
+ offset = dissect_rpc_string_tvb(tvb,pinfo,lock_tree,
+ hf_nlm_lock_caller_name, offset, NULL);
+ offset = dissect_nfs_fh3(pd, compat_offset+offset, pinfo->fd, lock_tree,"fh") - compat_offset;
+
+ offset = dissect_rpc_data_tvb(tvb, pinfo, lock_tree, hf_nlm_lock_owner, offset);
+
+ offset = dissect_rpc_uint32_tvb(tvb, pinfo, lock_tree, hf_nlm_lock_svid, offset);
+
+ if (version == 4) {
+ offset = dissect_rpc_uint64_tvb(tvb, pinfo, lock_tree, hf_nlm_lock_l_offset, offset);
+ offset = dissect_rpc_uint64_tvb(tvb, pinfo, lock_tree, hf_nlm_lock_l_len, offset);
+ }
+ else {
+ offset = dissect_rpc_uint32_tvb(tvb, pinfo, lock_tree, hf_nlm_lock_l_offset, offset);
+ offset = dissect_rpc_uint32_tvb(tvb, pinfo, lock_tree, hf_nlm_lock_l_len, offset);
+ }
+
+ return offset;
+}
+
+
+/* RPC functions */
+
+#if 0
+static int
+dissect_nlm1_lock_call(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
+{
+#else
+int
+dissect_nlm1_lock_call(const u_char* pd, int offset, frame_data* fd, proto_tree* tree)
+{
+ tvbuff_t *tvb = tvb_create_from_top(offset);
+ packet_info *pinfo = π
+#endif
+ int noffset;
+
+ noffset = dissect_rpc_data_tvb(tvb, pinfo, tree, hf_nlm_cookie, 0);
+ noffset = dissect_rpc_bool_tvb(tvb, pinfo, tree, hf_nlm_block, noffset);
+ noffset = dissect_rpc_bool_tvb(tvb, pinfo, tree, hf_nlm_exclusive, noffset);
+ noffset = dissect_nlm_lock(tvb, pinfo, tree, 1, noffset);
+ noffset = dissect_rpc_bool_tvb(tvb, pinfo, tree, hf_nlm_reclaim, noffset);
+ noffset = dissect_rpc_uint32_tvb(tvb, pinfo, tree, hf_nlm_state, noffset);
+ return tvb_raw_offset(tvb) + noffset;
+}
+
+
+#if 0
+static int
+dissect_nlm1_unlock_call(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
+{
+#else
+int
+dissect_nlm1_unlock_call(const u_char* pd, int offset, frame_data* fd, proto_tree* tree)
+{
+ tvbuff_t *tvb = tvb_create_from_top(offset);
+ packet_info *pinfo = π
+#endif
+ int noffset;
+
+ noffset = dissect_rpc_data_tvb(tvb, pinfo, tree, hf_nlm_cookie, 0);
+ noffset = dissect_nlm_lock(tvb, pinfo, tree, 1, noffset);
+ return tvb_raw_offset(tvb) + noffset;
+}
+
+
+#if 0
+static int
+dissect_nlm1_gen_reply(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
+{
+#else
+int
+dissect_nlm1_gen_reply(const u_char* pd, int offset, frame_data* fd, proto_tree* tree)
+{
+ tvbuff_t *tvb = tvb_create_from_top(offset);
+ packet_info *pinfo = π
+#endif
+ int noffset;
+
+ noffset = dissect_rpc_data_tvb(tvb, pinfo, tree, hf_nlm_cookie, 0);
+ noffset = dissect_rpc_uint32_tvb(tvb, pinfo, tree, hf_nlm_state, noffset);
+ return tvb_raw_offset(tvb) + noffset;
+}
+
/* proc number, "proc name", dissect_request, dissect_reply */
/* NULL as function pointer means: take the generic one. */
/* NLM protocol version 1 */
const vsff nlm1_proc[] = {
- { NLM_NULL, "NULL", NULL, NULL },
- { NLM_TEST, "TEST", NULL, NULL },
- { NLM_LOCK, "LOCK", NULL, NULL },
- { NLM_CANCEL, "CANCEL", NULL, NULL },
- { NLM_UNLOCK, "UNLOCK", NULL, NULL },
- { NLM_GRANTED, "GRANTED", NULL, NULL },
- { NLM_TEST_MSG, "TEST_MSG", NULL, NULL },
- { NLM_LOCK_MSG, "LOCK_MSG", NULL, NULL },
- { NLM_CANCEL_MSG, "CANCEL_MSG", NULL, NULL },
- { NLM_UNLOCK_MSG, "UNLOCK_MSG", NULL, NULL },
- { NLM_GRANTED_MSG, "GRANTED_MSG", NULL, NULL },
- { NLM_TEST_RES, "TEST_RES", NULL, NULL },
- { NLM_LOCK_RES, "LOCK_RES", NULL, NULL },
- { NLM_CANCEL_RES, "CANCEL_RES", NULL, NULL },
- { NLM_UNLOCK_RES, "UNLOCK_RES", NULL, NULL },
- { NLM_GRANTED_RES, "GRANTED_RES", NULL, NULL },
+ { NLM_NULL, "NULL", /* OK */
+ NULL, NULL },
+ { NLM_TEST, "TEST",
+ NULL, NULL },
+ { NLM_LOCK, "LOCK", /* OK */
+ dissect_nlm1_lock_call, dissect_nlm1_gen_reply },
+ { NLM_CANCEL, "CANCEL",
+ NULL, dissect_nlm1_gen_reply },
+ { NLM_UNLOCK, "UNLOCK", /* OK */
+ dissect_nlm1_unlock_call, dissect_nlm1_gen_reply },
+ { NLM_GRANTED, "GRANTED",
+ NULL, NULL },
+ { NLM_TEST_MSG, "TEST_MSG",
+ NULL, NULL },
+ { NLM_LOCK_MSG, "LOCK_MSG", /* OK */
+ dissect_nlm1_lock_call, NULL },
+ { NLM_CANCEL_MSG, "CANCEL_MSG",
+ NULL, NULL },
+ { NLM_UNLOCK_MSG, "UNLOCK_MSG", /* OK */
+ dissect_nlm1_unlock_call, NULL },
+ { NLM_GRANTED_MSG, "GRANTED_MSG",
+ NULL, dissect_nlm1_gen_reply },
+ { NLM_TEST_RES, "TEST_RES",
+ NULL, NULL },
+ { NLM_LOCK_RES, "LOCK_RES", /* OK */
+ dissect_nlm1_gen_reply, NULL },
+ { NLM_CANCEL_RES, "CANCEL_RES", /* OK */
+ dissect_nlm1_gen_reply, NULL },
+ { NLM_UNLOCK_RES, "UNLOCK_RES", /* OK */
+ dissect_nlm1_gen_reply, NULL },
+ { NLM_GRANTED_RES, "GRANTED_RES", /* OK */
+ dissect_nlm1_gen_reply, NULL },
{ 0, NULL, NULL, NULL }
};
/* end of NLM protocol version 1 */
};
/* end of NLM protocol version 3 */
+
+#if 0
+static int
+dissect_nlm4_test_call(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
+{
+#else
+int
+dissect_nlm4_test_call(const u_char* pd, int offset, frame_data* fd, proto_tree* tree)
+{
+ tvbuff_t *tvb = tvb_create_from_top(offset);
+ packet_info *pinfo = π
+#endif
+ int noffset;
+
+ noffset = dissect_rpc_data_tvb(tvb, pinfo, tree, hf_nlm_cookie, 0);
+ dissect_rpc_bool_tvb(tvb, pinfo, tree, hf_nlm_exclusive, noffset);
+ noffset += 4;
+ noffset = dissect_nlm_lock(tvb, pinfo, tree, 4, noffset);
+
+ return tvb_raw_offset(tvb) + noffset;
+}
+
+
/* NLM protocol version 4 */
const vsff nlm4_proc[] = {
{ NLM_NULL, "NULL", NULL, NULL },
- { NLM_TEST, "TEST", NULL, NULL },
+ { NLM_TEST, "TEST", dissect_nlm4_test_call, NULL },
{ NLM_LOCK, "LOCK", NULL, NULL },
{ NLM_CANCEL, "CANCEL", NULL, NULL },
{ NLM_UNLOCK, "UNLOCK", NULL, NULL },
};
/* end of NLM protocol version 4 */
+
+static struct true_false_string yesno = { "Yes", "No" };
+
+
void
proto_register_nlm(void)
{
+ static hf_register_info hf[] = {
+ { &hf_nlm_cookie, {
+ "cookie", "nlm.cookie", FT_STRING, BASE_DEC,
+ NULL, 0, "cookie" }},
+ { &hf_nlm_block, {
+ "block", "nlm.block", FT_BOOLEAN, BASE_NONE,
+ &yesno, 0, "block" }},
+ { &hf_nlm_exclusive, {
+ "exclusive", "nlm.exclusive", FT_BOOLEAN, BASE_NONE,
+ &yesno, 0, "exclusive" }},
+ { &hf_nlm_lock, {
+ "lock", "nlm.lock", FT_NONE, 0,
+ NULL, 0, "lock" }},
+ { &hf_nlm_lock_caller_name, {
+ "caller_name", "nlm.lock.caller_name", FT_STRING, BASE_NONE,
+ NULL, 0, "caller_name" }},
+ { &hf_nlm_lock_owner, {
+ "owner", "nlm.lock.owner", FT_STRING, BASE_DEC,
+ NULL, 0, "owner" }},
+ { &hf_nlm_lock_svid, {
+ "svid", "nlm.lock.svid", FT_UINT32, BASE_DEC,
+ NULL, 0, "svid" }},
+ { &hf_nlm_lock_l_offset, {
+ "l_offset", "nlm.lock.l_offset", FT_UINT32, BASE_DEC,
+ NULL, 0, "l_offset" }},
+ { &hf_nlm_lock_l_len, {
+ "l_len", "nlm.lock.l_len", FT_UINT32, BASE_DEC,
+ NULL, 0, "l_len" }},
+ { &hf_nlm_reclaim, {
+ "reclaim", "nlm.reclaim", FT_BOOLEAN, BASE_NONE,
+ &yesno, 0, "reclaim" }},
+ { &hf_nlm_state, {
+ "state", "nlm.state", FT_UINT32, BASE_DEC,
+ VALS(names_nlm_state), 0, "state" }},
+ };
+
static gint *ett[] = {
&ett_nlm,
+ &ett_nlm_lock,
};
proto_nlm = proto_register_protocol("Network Lock Manager Protocol", "nlm");
+ proto_register_field_array(proto_nlm, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
}
git.samba.org / obnox / wireshark / wip.git / commitdiff