xref: /freebsd/sys/netinet/libalias/HISTORY (revision 16038816) 
1$FreeBSD$
2
3Version 1.0: August 11, 1996 (cjm)
4
5Version 1.1:  August 20, 1996  (cjm)
6    - Host accepts incoming connections for ports 0 to 1023.
7
8Version 1.2:  September 7, 1996 (cjm)
9    - Fragment handling error in alias_db.c corrected.
10
11Version 1.3:  September 15, 1996 (cjm)
12    - Generalized mechanism for handling incoming
13      connections (no more 0 to 1023 restriction).
14
15    - Increased ICMP support (will handle traceroute now).
16
17    - Improved TCP close connection logic.
18
19Version 1.4: September 16, 1996 (cjm)
20
21Version 1.5: September 17, 1996 (cjm)
22    - Corrected error in handling incoming UDP packets
23      with zero checksum.
24
25Version 1.6: September 18, 1996
26    - Simplified ICMP data storage.  Will now handle
27      tracert from Win95 and NT as well as FreeBSD
28      traceroute, which uses UDP packets to non-existent
29      ports.
30
31Version 1.7: January 9, 1997 (cjm)
32    - Reduced malloc() activity for ICMP echo and
33      timestamp requests.
34
35    - Added handling for out-of-order IP fragments.
36
37    - Switched to differential checksum computation
38      for IP headers (TCP, UDP and ICMP checksums
39      were already differential).
40
41    - Accepts FTP data connections from other than
42      port 20.  This allows one ftp connections
43      from two hosts which are both running packet
44      aliasing.
45
46    - Checksum error on FTP transfers.  Problem
47      in code located by Martin Renters and
48      Brian Somers.
49
50Version 1.8: January 14, 1997 (cjm)
51    - Fixed data type error in function StartPoint()
52      in alias_db.c (this bug did not exist before v1.7)
53      Problem in code located by Ari Suutari.
54
55Version 1.9: February 1, 1997 (Eivind Eklund <perhaps@yes.no>)
56    - Added support for IRC DCC (ee)
57
58    - Changed the aliasing routines to use ANSI style
59      throughout (ee)
60
61    - Minor API changes for integration with other
62      programs than PPP (ee)
63
64    - Fixed minor security hole in alias_ftp.c for
65      other applications of the aliasing software.
66      Hole could _not_ manifest in ppp+pktAlias, but
67      could potentially manifest in other applications
68      of the aliasing. (ee)
69
70    - Connections initiated from packet aliasing
71      host machine will not have their port number
72      aliased unless it conflicts with an aliasing
73      port already being used. (There is an option
74      to disable this for debugging) (cjm)
75
76    - Sockets will be allocated in cases where
77      there might be port interference with the
78      host machine.  This can be disabled in cases
79      where the ppp host will be acting purely as a
80      masquerading router and not generate any
81      traffic of its own.
82      (cjm)
83
84Version 2.0: March, 1997 (cjm)
85    - Aliasing links are cleared only when a host interface address
86      changes.
87
88    - PacketAliasPermanentLink() API added.
89
90    - Option for only aliasing private, unregistered
91      IP addresses added.
92
93    - Substantial rework to the aliasing lookup engine.
94
95Version 2.1: May, 1997 (cjm)
96    - Continuing rework to the aliasing lookup engine
97      to support multiple incoming addresses and static
98      NAT.  PacketAliasRedirectPort() and
99      PacketAliasRedirectAddr() added to API.
100
101    - Now supports outgoing as well as incoming ICMP
102      error messages.
103
104Version 2.2: July, 1997 (cjm)
105    - Rationalized API function names to all begin with
106      "PacketAlias..."  Old function names are retained
107      for backwards compatibility.
108
109    - Packet aliasing engine will now free memory of
110      fragments which are never resolved after a timeout
111      period.  Once a fragment is resolved, it becomes
112      the users responsibility to free the memory.
113
114Version 2.3: August 11, 1997 (cjm)
115    - Problem associated with socket file descriptor
116      accumulation in alias_db.c corrected.  The sockets
117      had to be closed when a binding failed.  Problem
118      in code located by Gordon Burditt.
119
120Version 2.4: September 1, 1997 (cjm)
121    - PKT_ALIAS_UNREGISTERED_ONLY option repaired.
122      This part of the code was incorrectly re-implemented
123      in version 2.1.
124
125Version 2.5: December, 1997 (ee)
126    - Added PKT_ALIAS_PUNCH_FW mode for firewall
127      bypass of FTP/IRC DCC data connections.  Also added
128      improved TCP connection monitoring.
129
130Version 2.6: May, 1998 (amurai)
131    - Added supporting routine for NetBios over TCP/IP.
132
133Version 3.0: January 1, 1999
134    - Transparent proxying support added.
135    - PPTP redirecting support added based on patches
136      contributed by Dru Nelson <dnelson@redwoodsoft.com>.
137
138Version 3.1: May, 2000 (Erik Salander, erik@whistle.com)
139    - Added support to alias 227 replies, allows aliasing for
140      FTP servers in passive mode.
141    - Added support for PPTP aliasing.
142
143Version 3.2: July, 2000 (Erik Salander, erik@whistle.com and
144      Junichi Satoh, junichi@junichi.org)
145    - Added support for streaming media (RTSP and PNA) aliasing.
146
147Version 3.3: May 2020 (donner)
148    - Dropped LibAliasCheckNewLink
149