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ddc891d809
wireshark/wireshark-1.2.6-smb-find-full-dir-info.patch
Jeff Layton ddc891d809 Add patches for NFSv4.0 callback channel decode and decoders for more SMB 
FIND_FILE infolevels
2010-03-16 14:22:22 +00:00

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From 2856caa1cf3307208864af4c59da8ecb07bc3153 Mon Sep 17 00:00:00 2001
From: Jeff Layton <jlayton@redhat.com>
Date: Mon, 8 Mar 2010 19:43:07 -0500
Subject: [PATCH] packet-smb: add more FIND_FILE dissectors
---
epan/dissectors/packet-smb.c | 271 ++++++++++++++++++++++++++++++++++++++++++
1 files changed, 271 insertions(+), 0 deletions(-)
diff --git a/epan/dissectors/packet-smb.c b/epan/dissectors/packet-smb.c
index 727b290..c9a90b9 100644
--- a/epan/dissectors/packet-smb.c
+++ b/epan/dissectors/packet-smb.c
@@ -10051,6 +10051,8 @@ static const value_string ff2_il_vals[] = {
{ 0x0102, "Find File Full Directory Info"},
{ 0x0103, "Find File Names Info"},
{ 0x0104, "Find File Both Directory Info"},
+ { 0x0105, "Find File Full Directory Info"},
+ { 0x0106, "Find File Id Both Directory Info"},
{ 0x0202, "Find File UNIX"},
{0, NULL}
};
@@ -13900,6 +13902,267 @@ dissect_4_3_4_6(tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent_tree,
}
static int
+dissect_4_3_4_6full(tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent_tree,
+ int offset, guint16 *bcp, gboolean *trunc)
+{
+ int fn_len;
+ const char *fn;
+ int old_offset = offset;
+ proto_item *item = NULL;
+ proto_tree *tree = NULL;
+ smb_info_t *si;
+ guint32 neo;
+ int padcnt;
+
+ si = (smb_info_t *)pinfo->private_data;
+ DISSECTOR_ASSERT(si);
+
+ if(parent_tree){
+ tvb_ensure_bytes_exist(tvb, offset, *bcp);
+ item = proto_tree_add_text(parent_tree, tvb, offset, *bcp, "%s",
+ val_to_str(si->info_level, ff2_il_vals, "Unknown (0x%02x)"));
+ tree = proto_item_add_subtree(item, ett_smb_ff2_data);
+ }
+
+ /*
+ * XXX - I have not seen any of these that contain a resume
+ * key, even though some of the requests had the "return resume
+ * key" flag set.
+ */
+
+ /* next entry offset */
+ CHECK_BYTE_COUNT_SUBR(4);
+ neo = tvb_get_letohl(tvb, offset);
+ proto_tree_add_uint(tree, hf_smb_next_entry_offset, tvb, offset, 4, neo);
+ COUNT_BYTES_SUBR(4);
+
+ /* file index */
+ CHECK_BYTE_COUNT_SUBR(4);
+ proto_tree_add_item(tree, hf_smb_file_index, tvb, offset, 4, TRUE);
+ COUNT_BYTES_SUBR(4);
+
+ /* dissect standard 8-byte timestamps */
+ offset = dissect_smb_standard_8byte_timestamps(tvb, pinfo, tree, offset, bcp, trunc);
+ if (*trunc) {
+ return offset;
+ }
+
+ /* end of file */
+ CHECK_BYTE_COUNT_SUBR(8);
+ proto_tree_add_item(tree, hf_smb_end_of_file, tvb, offset, 8, TRUE);
+ COUNT_BYTES_SUBR(8);
+
+ /* allocation size */
+ CHECK_BYTE_COUNT_SUBR(8);
+ proto_tree_add_item(tree, hf_smb_alloc_size64, tvb, offset, 8, TRUE);
+ COUNT_BYTES_SUBR(8);
+
+ /* Extended File Attributes */
+ CHECK_BYTE_COUNT_SUBR(4);
+ offset = dissect_file_ext_attr(tvb, tree, offset);
+ *bcp -= 4;
+
+ /* file name len */
+ CHECK_BYTE_COUNT_SUBR(4);
+ fn_len = tvb_get_letohl(tvb, offset);
+ proto_tree_add_uint(tree, hf_smb_file_name_len, tvb, offset, 4, fn_len);
+ COUNT_BYTES_SUBR(4);
+
+ /*
+ * EA length.
+ *
+ * XXX - in one captures, this has the topmost bit set, and the
+ * rest of the bits have the value 7. Is the topmost bit being
+ * set some indication that the value *isn't* the length of
+ * the EAs?
+ */
+ CHECK_BYTE_COUNT_SUBR(4);
+ proto_tree_add_item(tree, hf_smb_ea_list_length, tvb, offset, 4, TRUE);
+ COUNT_BYTES_SUBR(4);
+
+ /* skip 4 bytes */
+ COUNT_BYTES_SUBR(4);
+
+ CHECK_BYTE_COUNT_SUBR(8);
+ proto_tree_add_item(tree, hf_smb_index_number, tvb, offset, 8, TRUE);
+ COUNT_BYTES_SUBR(8);
+
+ /* file name */
+ fn = get_unicode_or_ascii_string(tvb, &offset, si->unicode, &fn_len, FALSE, TRUE, bcp);
+ CHECK_STRING_SUBR(fn);
+ proto_tree_add_string(tree, hf_smb_file_name, tvb, offset, fn_len,
+ fn);
+ COUNT_BYTES_SUBR(fn_len);
+
+ if (check_col(pinfo->cinfo, COL_INFO)) {
+ col_append_fstr(pinfo->cinfo, COL_INFO, " %s",
+ format_text(fn, strlen(fn)));
+ }
+
+ /* skip to next structure */
+ if(neo){
+ padcnt = (old_offset + neo) - offset;
+ if (padcnt < 0) {
+ /*
+ * XXX - this is bogus; flag it?
+ */
+ padcnt = 0;
+ }
+ if (padcnt != 0) {
+ CHECK_BYTE_COUNT_SUBR(padcnt);
+ COUNT_BYTES_SUBR(padcnt);
+ }
+ }
+
+ proto_item_append_text(item, " File: %s", format_text(fn, strlen(fn)));
+ proto_item_set_len(item, offset-old_offset);
+
+ *trunc = FALSE;
+ return offset;
+}
+
+static int
+dissect_4_3_4_6_id_both(tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent_tree,
+ int offset, guint16 *bcp, gboolean *trunc)
+{
+ int fn_len, sfn_len;
+ const char *fn, *sfn;
+ int old_offset = offset;
+ proto_item *item = NULL;
+ proto_tree *tree = NULL;
+ smb_info_t *si;
+ guint32 neo;
+ int padcnt;
+
+ si = (smb_info_t *)pinfo->private_data;
+ DISSECTOR_ASSERT(si);
+
+ if(parent_tree){
+ tvb_ensure_bytes_exist(tvb, offset, *bcp);
+ item = proto_tree_add_text(parent_tree, tvb, offset, *bcp, "%s",
+ val_to_str(si->info_level, ff2_il_vals, "Unknown (0x%02x)"));
+ tree = proto_item_add_subtree(item, ett_smb_ff2_data);
+ }
+
+ /*
+ * XXX - I have not seen any of these that contain a resume
+ * key, even though some of the requests had the "return resume
+ * key" flag set.
+ */
+
+ /* next entry offset */
+ CHECK_BYTE_COUNT_SUBR(4);
+ neo = tvb_get_letohl(tvb, offset);
+ proto_tree_add_uint(tree, hf_smb_next_entry_offset, tvb, offset, 4, neo);
+ COUNT_BYTES_SUBR(4);
+
+ /* file index */
+ CHECK_BYTE_COUNT_SUBR(4);
+ proto_tree_add_item(tree, hf_smb_file_index, tvb, offset, 4, TRUE);
+ COUNT_BYTES_SUBR(4);
+
+ /* dissect standard 8-byte timestamps */
+ offset = dissect_smb_standard_8byte_timestamps(tvb, pinfo, tree, offset, bcp, trunc);
+ if (*trunc) {
+ return offset;
+ }
+
+ /* end of file */
+ CHECK_BYTE_COUNT_SUBR(8);
+ proto_tree_add_item(tree, hf_smb_end_of_file, tvb, offset, 8, TRUE);
+ COUNT_BYTES_SUBR(8);
+
+ /* allocation size */
+ CHECK_BYTE_COUNT_SUBR(8);
+ proto_tree_add_item(tree, hf_smb_alloc_size64, tvb, offset, 8, TRUE);
+ COUNT_BYTES_SUBR(8);
+
+ /* Extended File Attributes */
+ CHECK_BYTE_COUNT_SUBR(4);
+ offset = dissect_file_ext_attr(tvb, tree, offset);
+ *bcp -= 4;
+
+ /* file name len */
+ CHECK_BYTE_COUNT_SUBR(4);
+ fn_len = tvb_get_letohl(tvb, offset);
+ proto_tree_add_uint(tree, hf_smb_file_name_len, tvb, offset, 4, fn_len);
+ COUNT_BYTES_SUBR(4);
+
+ /*
+ * EA length.
+ *
+ * XXX - in one captures, this has the topmost bit set, and the
+ * rest of the bits have the value 7. Is the topmost bit being
+ * set some indication that the value *isn't* the length of
+ * the EAs?
+ */
+ CHECK_BYTE_COUNT_SUBR(4);
+ proto_tree_add_item(tree, hf_smb_ea_list_length, tvb, offset, 4, TRUE);
+ COUNT_BYTES_SUBR(4);
+
+ /* short file name len */
+ CHECK_BYTE_COUNT_SUBR(1);
+ sfn_len = tvb_get_guint8(tvb, offset);
+ proto_tree_add_uint(tree, hf_smb_short_file_name_len, tvb, offset, 1, sfn_len);
+ COUNT_BYTES_SUBR(1);
+
+ /* reserved byte */
+ CHECK_BYTE_COUNT_SUBR(1);
+ proto_tree_add_item(tree, hf_smb_reserved, tvb, offset, 1, TRUE);
+ COUNT_BYTES_SUBR(1);
+
+ /* short file name - it's not always in Unicode */
+ sfn = get_unicode_or_ascii_string(tvb, &offset, si->unicode, &sfn_len, FALSE, TRUE, bcp);
+ CHECK_STRING_SUBR(sfn);
+ proto_tree_add_string(tree, hf_smb_short_file_name, tvb, offset, 24,
+ sfn);
+ COUNT_BYTES_SUBR(24);
+
+ /* reserved bytes */
+ CHECK_BYTE_COUNT_SUBR(2);
+ proto_tree_add_item(tree, hf_smb_reserved, tvb, offset, 2, TRUE);
+ COUNT_BYTES_SUBR(2);
+
+ /* file id */
+ CHECK_BYTE_COUNT_SUBR(8);
+ proto_tree_add_item(tree, hf_smb_index_number, tvb, offset, 8, TRUE);
+ COUNT_BYTES_SUBR(8);
+
+ /* file name */
+ fn = get_unicode_or_ascii_string(tvb, &offset, si->unicode, &fn_len, FALSE, TRUE, bcp);
+ CHECK_STRING_SUBR(fn);
+ proto_tree_add_string(tree, hf_smb_file_name, tvb, offset, fn_len,
+ fn);
+ COUNT_BYTES_SUBR(fn_len);
+
+ if (check_col(pinfo->cinfo, COL_INFO)) {
+ col_append_fstr(pinfo->cinfo, COL_INFO, " %s",
+ format_text(fn, strlen(fn)));
+ }
+
+ /* skip to next structure */
+ if(neo){
+ padcnt = (old_offset + neo) - offset;
+ if (padcnt < 0) {
+ /*
+ * XXX - this is bogus; flag it?
+ */
+ padcnt = 0;
+ }
+ if (padcnt != 0) {
+ CHECK_BYTE_COUNT_SUBR(padcnt);
+ COUNT_BYTES_SUBR(padcnt);
+ }
+ }
+
+ proto_item_append_text(item, " File: %s", format_text(fn, strlen(fn)));
+ proto_item_set_len(item, offset-old_offset);
+
+ *trunc = FALSE;
+ return offset;
+}
+
+static int
dissect_4_3_4_7(tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent_tree,
int offset, guint16 *bcp, gboolean *trunc)
{
@@ -14129,6 +14392,14 @@ dissect_ff2_response_data(tvbuff_t * tvb, packet_info * pinfo,
offset = dissect_4_3_4_6(tvb, pinfo, tree, offset, bcp,
trunc);
break;
+ case 0x0105: /*Find File Full Directory Info*/
+ offset = dissect_4_3_4_6full(tvb, pinfo, tree, offset, bcp,
+ trunc);
+ break;
+ case 0x0106: /*Find File Id Both Directory Info*/
+ offset = dissect_4_3_4_6_id_both(tvb, pinfo, tree, offset, bcp,
+ trunc);
+ break;
case 0x0202: /*Find File UNIX*/
offset = dissect_4_3_4_8(tvb, pinfo, tree, offset, bcp,
trunc);
--
1.6.6.1
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