diff options
Diffstat (limited to 'source/libsmb/unexpected.c')
| -rw-r--r-- | source/libsmb/unexpected.c | 167 |
1 files changed, 0 insertions, 167 deletions
diff --git a/source/libsmb/unexpected.c b/source/libsmb/unexpected.c deleted file mode 100644 index 6c5dd611a9c..00000000000 --- a/source/libsmb/unexpected.c +++ /dev/null @@ -1,167 +0,0 @@ -/* - Unix SMB/Netbios implementation. - Version 3.0 - handle unexpected packets - Copyright (C) Andrew Tridgell 2000 - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - -*/ - -#include "includes.h" - -extern int DEBUGLEVEL; - -static TDB_CONTEXT *tdbd = NULL; - -/* the key type used in the unexpeceted packet database */ -struct unexpected_key { - enum packet_type packet_type; - time_t timestamp; - int count; -}; - - - -/**************************************************************************** - all unexpected packets are passed in here, to be stored in a unexpected - packet database. This allows nmblookup and other tools to receive packets - erroneoously sent to the wrong port by broken MS systems - **************************************************************************/ -void unexpected_packet(struct packet_struct *p) -{ - static int count; - TDB_DATA kbuf, dbuf; - struct unexpected_key key; - char buf[1024]; - int len=0; - - if (!tdbd) { - tdbd = tdb_open(lock_path("unexpected.tdb"), 1, - TDB_CLEAR_IF_FIRST, - O_RDWR | O_CREAT, 0644); - if (!tdbd) { - DEBUG(0,("Failed to open unexpected.tdb\n")); - return; - } - } - - memset(buf,'\0',sizeof(buf)); - - len = build_packet(buf, p); - - key.packet_type = p->packet_type; - key.timestamp = p->timestamp; - key.count = count++; - - kbuf.dptr = (char *)&key; - kbuf.dsize = sizeof(key); - dbuf.dptr = buf; - dbuf.dsize = len; - - tdb_store(tdbd, kbuf, dbuf, TDB_REPLACE); -} - - -static time_t lastt; - -/**************************************************************************** -delete the record if it is too old - **************************************************************************/ -static int traverse_fn(TDB_CONTEXT *ttdb, TDB_DATA kbuf, TDB_DATA dbuf, void *state) -{ - struct unexpected_key key; - - memcpy(&key, kbuf.dptr, sizeof(key)); - - if (lastt - key.timestamp > NMBD_UNEXPECTED_TIMEOUT) { - tdb_delete(ttdb, kbuf); - } - - return 0; -} - - -/**************************************************************************** -delete all old unexpected packets - **************************************************************************/ -void clear_unexpected(time_t t) -{ - if (!tdbd) return; - - if ((lastt != 0) && (t < lastt + NMBD_UNEXPECTED_TIMEOUT)) - return; - - lastt = t; - - tdb_traverse(tdbd, traverse_fn, NULL); -} - - -static struct packet_struct *matched_packet; -static int match_id; -static enum packet_type match_type; -static char *match_name; - -/**************************************************************************** -tdb traversal fn to find a matching 137 packet - **************************************************************************/ -static int traverse_match(TDB_CONTEXT *ttdb, TDB_DATA kbuf, TDB_DATA dbuf, void *state) -{ - struct unexpected_key key; - struct packet_struct *p; - - memcpy(&key, kbuf.dptr, sizeof(key)); - - if (key.packet_type != match_type) return 0; - - p = parse_packet(dbuf.dptr, dbuf.dsize, match_type); - - if ((match_type == NMB_PACKET && - p->packet.nmb.header.name_trn_id == match_id) || - (match_type == DGRAM_PACKET && - match_mailslot_name(p, match_name))) { - matched_packet = p; - return -1; - } - - free_packet(p); - - return 0; -} - - -/**************************************************************************** -check for a particular packet in the unexpected packet queue - **************************************************************************/ -struct packet_struct *receive_unexpected(enum packet_type packet_type, int id, - char *mailslot_name) -{ - TDB_CONTEXT *tdb2; - - tdb2 = tdb_open(lock_path("unexpected.tdb"), 0, 0, O_RDONLY, 0); - if (!tdb2) return NULL; - - matched_packet = NULL; - match_id = id; - match_type = packet_type; - match_name = mailslot_name; - - tdb_traverse(tdb2, traverse_match, NULL); - - tdb_close(tdb2); - - return matched_packet; -} |