1ChangeLog discontinued, git history can be found here:
4Summary of Changes from 1.0-pre6 to 1.0-pre7
6	Thomas Graf <tgraf@suug.ch>
7	  o Generic netlink support
8	  o Route Addition/Deletion
9	  o Added nl_cache_subset()
10	  o Have nl_object_clone() make real clones without
11	    sharing any data.
12	  o Remove old nl_object_alloc() not based on a object
13	    operations to avoid bugs due to missing init.
14	  o Added nl-list-caches utility
15	  o Removed nlmsg_build_no_hdr(), duplicate
16	  o Reworked message interface
17	  o Fixed nlmsg_put() and genlmsg_put() to correctly reserve
18	    tail room for user specific headers.
19	  o Added nl_cache_move()
20	  o Renamed nl_cache_delete() to nl_cache_remove() (no API break)
21	  o Fixed reference counting while objects stay in caches.
22	  o Object marking
23	  o Moved attribute mask for objects into generic structure
24	  o nl-list-caches: List available dump procedures
25	  o Use PAGE_SIZE as initial buffer size when reading from
26	    netlink socket
27	  o Double buffer size when recv() returns MSG_TRUNC
28	  o Replaced filter object operation with new compare operation
29	    capable of listing differences between two objects
30	  o Added nl_object_identical() to check if two objects are
31	    identical from a uniqueness point of view
32	  o Added nl_object_diff() returning a bitmask of differences in
33	    attributes
34	  o Added nl_object_attr_list() generating a list of attribute
35	    name the object has assigned 
36	  o Cache updates based on event notifications, code based on
37	    Patrick McHardy's patches
38	  o Cache Manager
39	  o Added NL_AUTO_PID, NL_AUTO_SEQ for convenience
40	  o Disable MSG_PEEK by default and provide nl_socket_enable_msg_peek()
41	  o Fixed nl_recvmsgs() to return 0 when interrupted via NL_STOP or
42	    NL_SKIP
43	  o Fixed nl_recvmsgs() to stop reading after parsing if not in the
44	    middle of a multipart message.
45	  o Fixed nl_recvmsgs() to not stop after receving an ACK
46	  o Fixed nl_recvmsgs() to not blindly discard remaining messages
47	    if a NLMSG_DONE message is received.
49	Petr Gotthard <petr.gotthard@siemens.com>
50	Siemens AG Oesterreich
51	  o Fix u32 to properly handle multiple keys
52	  o rtnl_htb_set_(r|c)buffer()
53	  o Fixed MTU handling in HTB class, problem pointed out
54	    by Edouard Thuleau
56	Zilvinas Valinskas <zilvinas@wilibox.com>
57	  o Fix wrong msg_namelen in nl_recv()
58	  o Fix memory leak in flnl_request_put()
60	Helmut Schaa <hschaa@suse.de>
61	  o Fix for using libnl from within C++
63	Patrick McHardy <kaber@trash.net>
64	  o *_alloc_cache(): Only refill cache if handle is provided
66	James Oakley <jfunk@funktronics.ca>
67	  o Fix rtnl_link_set_arptype() typo
69	Philip Craig <philipc@snapgear.com>
70	  o Change address family type from char to int
71	  o Fix the error handling when the build fails.
72	  o add nl_cache_mngr_get_fd()
73	  o add netfilter support
74	  o add netfilter conntrack support
75	  o add netfilter log support
77Summary of Changes from 1.0-pre5 to 1.0-pre6
79	Christopher Aillon <caillon@redhat.com>
80	  o Use $(libdir) instead of $(prefix)/lib for 64bit awesomeness.
82	Thomas Graf <tgraf@suug.ch>
83	  o Extend nl_msg to include source address, destination address
84	    and the protocol being used.
85	  o Make nl_send*() take a nl_msg instead of a nlmsghdr (API BREAK)
86	  o Change callbacks to take a nl_msg instead of source address
87	    and nlmsghdr (API BREAK)
88	  o caches must specify the protocol they're hooked up from now on
89	    if they intend to be associated with message types.
90	  o cache_mngt_associate now takes the protocol besides the message
91	    type to allow for multiple protocols to be supported (API BREAK)
92	  o overwrite destination address in nl_send() when specified in the
93	    message itself, allows for unbound addressing.
94	  o Support for netlink based fib_lookup()
95	  o Documentation fixes
96	  o Fix double nlmsg_free() in nl_recvmsgs() while receiving
97	    a multipart message and the read was interrupted.
98	  o Change cache operations to store names for message types.
99	  o Provide interface to convert message type to character string.
100	  o Add dp_dump_msgtype to prefix each dumped element with a
101	    pretty printed message type.
102	  o netlink fib lookup support
103	  o nl_recvmsgs() debugging
104	  o use nl_cachemngt_type2name() when pretty printing netlink header
105	  o Routing protocol translations.
106	  o Routing metric translations.
107	  o Revised route dumping
108	  o Nexthop flag translations.
109	  o Add support for IFF_DORMANT
111	Petr Gotthard <petr.gotthard@siemens.com>
112	Siemens AG Oesterreich
113	  o Fix access to obj after freeing it
114	  o Fix u32 selector access after realloc() 
115	  o Fix missing out-of-memory error handling in various places
116	  o Enhance nl-monitor to have group selection selectable and
117	    demonstrate usage of select()
118	  o Don't ignore IFF_RUNNING any longer
119	  o fw classifier support
121	Patrick McHardy <kaber@trash.net>
122	  o Fix conflicting types for __u64
123	  o Fix printf format string warnings
124	  o Fix object cloning
125	  o Deal with structure padding in nl_object_clone
126	  o Fix nl_addr leak
127	  o Set ce_msgtype in all parsed objects
128	  o Fix addr flag filter
129	  o Fix RTNLGRP definitions (was based on broken kernel version)
130	  o Export nl_get_errno()
131	  o Add function to get/set peer pid
132	  o Add IFF_LOWER_UP
133	  o Add/export some missing accessor functions
134	  o print /0 prefix in nl_addr2str()
135	  o Fix invalid free in nl_addr_parse for AF_UNSPEC addresses
136	  o Use __str2flags instead of __str2type in rtnl_link_str2flags()
137	  o Make sure object and filter types match in nl_object_match()
138	  o Add support for credential passing over netlink sockets (API BREAK)
139	  o Add support for custom dump callbacks
140	  o Add NL_DUMP_ENV format
142	Michael Biebl <biebl@teco.edu>
143	"Alex V. Myltsev" <avm@altlinux.ru>
144	  o Makefile fixes
147Summary of Changes from 1.0-pre4 to 1.0-pre5
149	Thomas Graf <tgraf@suug.ch>
150	  o Use minimized local copies for <linux/if.h>, <linux/if_arp.h>,
151	    and <linux/if_ether.h> to avoid compile troubles with
152	    applications including <net/if*.h>
153	    Reported by Christopher Aillon.
155Summary of Changes from 1.0-pre3 to 1.0-pre4
157	Thomas Graf <tgraf@suug.ch>
158	  o Fix wrong rtnl_addr_set_prefixlen() external declaration,
159	    reported by Dan Williams.
160	  o Fix nl_addr_parse() to not change the original string
161	    for prefixes.
162	  o Do not build documentation per default, but have the user
163	    issue 'make gendoc'
164	  o Assume neighbours to be permanent, set NUD_PERMANENT if not
165	    specified otherwise.
167Summary of Changes from 1.0-pre2 to 1.0-pre3
169	Thomas Graf <tgraf@suug.ch>
170	  o Fix SFQ parser to allocate qdisc options.
171	  o Fix rule statistics dumping to not call itself.
172	  o Complete Netem qdisc interface.
173	  o Add rtnl_*_put() and rtnl_*_free() to increase readability.
174	  o Cleanup of nl-* tools
175	  o Fix inclusion guards of route/neightbl.h
176	  o Fix nl_connect() to only modify rx/tx socket buffers if not
177	    already modified by the user.
178	  o Fix wrong nl_handle_alloc() prototype.
179	  o Fix typo in route/addr.c causing label to be marked as
180	    local address.
181	  o Use ~0UL as default prefix length instead of 0.
182	  o Fix neighbour message parser to correctly store core.
183	    attributes and provide them again.
184	  o Fix neighbour message parser to correctly guess address family.
185	    to make it compatible with nl_addr_parse() and ether llc
186	    addresses.
187	  o Add rtnl_route_table2str(), rtnl_route_str2table().
188	  o Add nl_cache_nitems_filter() to find out if a filter produces
189	    any matches.
190	  o Remove rtnl_rule_set_(dst|src)_str() (obsolete).
191	  o Remove scope and protocol field of routing rule.
192	  o Complete routing rules module.
193	  o Move realms translations from route to rtnl module.
195Summary of Changes from 1.0-pre1 to 1.0-pre2
197	Thomas Graf <tgraf@suug.ch>
198	  o More API documentation
199	  o Added flags argument to rtnl_addr_(add|build_add_request)().
200	  o Added rtnl_addr_(set|get)_multicast().
201	  o Moved scope translations routines from route/route.c to
202	    route/rtnl.c, required by other modules as well.
203	  o Removed old rtattr bits from rtnetlink-kernel.h
204	  o Customized libnl.css for doxygen documentation
205	  o Removed non-reentrant translation routines, only bloating
206	    the code and too risky.
207	  o Fixed wrong version number from 1.0-pre1.
208	  o Reenabled unfinished policer module.
209	  o Reworked TBF module, automatic caluclation of transmit times,
210	    limit setable via latency, automatic cell size calculation,
211	    options TLV generation. (untested)
212	  o Renamed nl_xmittime() to rtnl_tc_calc_txtime().
213	  o Renamde nl_build_rtable() to rtnl_tc_build_rate_table()
215	Petr Gotthard <petr.gotthard@siemens.com>,
216	Siemens AG Oesterreich
217	  o Fix symlinks to libnl library files to be moveable
218	  o Fix extern struct prototypes meant to be static.
219	  o Add empty install target to src/Makefile
221	Simon Stelling <blubb@gentoo.org>
222	  o Use LIBDIR instead of $(prefix)/lib for users to alllow librariers
223	    into $(prefix)/lib64.
225Summary of Changes from 0.5.0 to 1.0-pre1
227	Thomas Graf <tgraf@suug.ch>
228	  o Uncountable number of changes, rewrite of certain modules,
229	    several major API breakages
231	Petr Gotthard <petr.gotthard@siemens.com>,
232	Siemens AG Oesterreich
233	  o added class_build, rtnl_class_build_add_request, rtnl_class_add
234	  o added HTB (Hierachical Token Bucket) class support
235	  o added nl_xmittime, nl_build_rtable
236	  o added nl_data_append to realloc a nl_data structure
237	  o added rtnl_rcopy_ratespec as reverse to rtnl_copy_ratespec
238	  o fixed byte order conversion of rtnl_filter.protocol
239	  o SuSE and Fedora Linux compile fixes
240	  o fixed u32 classifier support
241	  o added rtnl_u32_set_handle, rtnl_u32_set_classid, rtnl_u32_set_flags
242	    and several rtnl_u32_add_key_... operations to u32 classifier
244Summary of Changes from 0.4.4 to 0.5.0
246	Thomas Graf <tgraf@suug.ch>
247	  o API documentation
248	  o nl_cache_filter to manually filter on a object
249	  o partial routing support
250	  o routing rules support
251	  o Propely set address family when setting addresses
252	  o debug flag and some rare messages, more to come
253	  o make error mesage verboseness configureable
254	  o tc fixes to wait for ack
255	  o cleanup and adaption of address code to latest internal API
256	  o various cleanups
257	  o dozens of API breakages (better now than later)
259	Daniel Hottinger <hotti@hotti.ch>
260	  o arch 64bit printf length modifier fixes
262	Baruch Even <baruch@ev-en.org>,
263	Mediatrix Telecom, inc. <ericb@mediatrix.com>
264	  o address support
266Summary of changes from 0.4.3 to 0.4.4
268	Thomas Graf <tgraf@suug.ch>:
269	  o overall cleanups for better code quality
270	  o replace dump_(brief|full|with_stats) ops with
271	    dump[NL_DUMP_MAX] array to allow further additions without
272	    breaking the ABI.
273	  o add of send_ack callback, called whenever when oppenent
274	    asks for an ACK.
275	  o make nl_parse_rtattr initialize the tb buffer like in the
276	    kernel, caller must no longer take care of it.
277	  o remove nl_addrnattr (obsolete)
278	  o fixed nl_msg_append_raw to correctly calculate length
279	    for raw data not aligned to NLMSG_ALIGN
280	  o fix memory leak in nl_recv in case of errors
281	  o correctly check sequence numbers if more than one message
282	    was sent out before the answer is being received.
283	  o add workaround for buggy netlink applications not properly
284	    setting NLM_F_MULTI.
286Summary of changes from 0.4.2 to 0.4.3
289	Thomas Graf <tgraf@suug.ch>:
290	  o use parser_param in nl_cache_parse
291	  o EGP: dump nfilters attribute
292	  o allow retrieving of filters attached to classes via
293	    FILTER_CACHE_PARENT(C) cache argument
294	  o filter message building API
296Summary of changes from 0.4.1 to 0.4.2
299	Baruch Even <baruch@ev-en.org>:
300	  o memory leak fix in nl_parse_rtattr
301	  o reset padding to 0 when appending raw data to a nl_msg
302	  o avoid overwriting nlmsg ptr when buffer extending fails
303	  o typo fixes
304	  o create symlinks libnl.so.0 and libnl.so
306	Thomas Graf <tgraf@suug.ch>:
307	  o EGP classifier support
308	  o avoid null pointer in printf call
309	  o added nl_cache_parse to put nl_msg's into a cache
310	  o added rtnl_filter_build to build a nl_msg filter message
311	  o correctly install header files
312	  o nl_msg_payload/nl_msg_payloadlen to access nl_msg payload
313	  o nl_parse_nested macro to simplify nested TLV parsing
314	  o NL_ERROR_ASSERT compile flag to assert(0) on errors
315	  o rta alignment fix in nl_msg_append_tlv
316	  o added nl_msg_parse_rtattr as shortcut for nl_parse_rtattr
317	    for nl_msg API
318	  o added nl_parse_nested for nested TLVs
319	  o added RTA_ARRAY_ELEMS macro to calculate array length
320	    for array TLVs
321	  o added nl_wait_for_ack to wait for the next ack
322	  o added rtnl_link_build_change_request(...)
323	  o added rtnl_neigh_build_*_request
324	  o converted neighbour code to use nl_wait_for_ack
325	  o cb_recvmsgs_ow callback to overwrite internal calls to
326	    nl_recvmsgs_def
327	  o cb_seq_check callback to overwrite default sequence checking
328	  o added nl_parser_param as argument for message parsers including
329	    a callback to be called upon successful parsing of a message.
330	    Removes the requirement of having all parsed messages to be added
331	    to a cache.
332	  o added cb_recv_ow and nl_send_ow callbacks to overwrite internal
333	    calls to nl_recv and nl_send.
335	Jamal Hadi Salim <hadi@cyberus.ca>
336	  o Linux 2.4 compile fixes