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* include: drop "netlink-private/netlink.h" and move declarationsThomas Haller2023-08-022-4/+2
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* all: cleanup includes and use "nm-default.h"Thomas Haller2023-08-022-1/+4
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* include: split and drop "netlink-private/types.h"Thomas Haller2023-08-022-3/+34
| | | | | Move all the declarations from "netlink-private/types.h" to places closer to where they are used.
* base: move "netlink-private/utils.h" to "base/nl-base-utils.h"Thomas Haller2023-07-311-1/+1
| | | | | | | | | | "base/nl-base-utils.h" (formerly "netlink-private/utils.h") contains no libnl3 specific references, just a bunch of C helpers. It's also a header-only "library", so it can be freely used by all our C-code. Move it to a separate directory, to make that clear.
* lib: use _nl_{init,exit} instead of __{init,exit}Thomas Haller2023-07-281-2/+2
| | | | | We should have things with "nl" prefix in our headers. Also, netlink-private/netlink.h is not header-only, preferably header-only stuff is in netlink-private/utils.h
* all: rework ATTR_DIFF() macros to not generate attribute namesThomas Haller2023-07-281-9/+7
| | | | | | | | | | I find macros that stitch together names like "FAMILY_ATTR_##ATTR" very confusing, because we no longer see where a certain name is used. It breaks grepping for symbols, and it breaks cscope. Yes, it's more verbose to not do that. If you really think that those names are too verbose, then maybe they should get a shorter name. And not use macros to make them palatable.
* lib: make nl_object_clone() out-of-memory safeThomas Haller2022-03-162-5/+10
| | | | | | | | | | | | | | | | | nl_object_clone() first does a shallow copy using memcpy(). That is useful, because it can correctly copy simple fields (like numbers). For pointer values, we need to implement oo_clone() to fixup the pointers and get the deep-copy correct. Now, oo_clone() must always follow through, to un-alias the copied pointer. In particular also in the error case. The oo_clone() implementations sometimes fail (with ENOMEM) and just return. In those cases, we must make sure that we don't leave the wrong pointers there. The pointers must be cleared first. Otherwise, any failure (which basically are ENOMEM) leave the object in an inconsistent state, and we double-free/use-after-free the pointers.
* license: fix and add SPDX license identifiers and drop license commentsThomas Haller2020-04-162-14/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This also fixes a few wrong SPDX license identifiers, where the original license comment indicates GPL-2.0-only. This is not done manually, but by running the following script: --- #!/bin/bash # Tool to drop license comments, adding SPDX license identifiers, while preserving # copyright comments. The point is not to manually do this task, but perform some # hacked up string replacement. _cp() { /bin/cp "$@" } _cat() { /bin/cat "$@" } in_file() { local T=$(mktemp) _cp -f "$1" "$T" _cat "$T" rm -f "$T" } out_file() { local T=$(mktemp) _cat - > "$T" _cp -f "$T" "$1" rm -f "$T" } join() { _cat "$@" | awk '{ printf("%s#x#", $0)}' } unjoin() { _cat - | sed 's/#x#/\n/g' } files_all() { git ls-files | grep -v '\.png$' | grep -v '^include/linux-private/' } adjust() { NEWLINES='\(#x#\)\+' COPYRIGHTS='\(\( \* Copyright (c) 20..\(-20..\|, 20..\)\? [^#]\+#x#\)\+\( \*#x# \* \(Stolen[^#]*\|Based on [^#]*\)#x#\)\?\)' _cat - | \ sed '1s%^\(/\* SPDX-License-Identifier: LGPL-2.1-only \*/\|\)#x#/\*#x# \* [^#]*#x# \*#x# \*[ ]\+This library is free software; you can redistribute it and/or#x# \*[ ]\+modify it under the terms of the GNU Lesser General Public#x# \*[ ]\+License as published by the Free Software Foundation version 2.1#x# \*[ ]\+of the License.#x# \*#x#'"$COPYRIGHTS"' \*/'"$NEWLINES"'%/\* SPDX-License-Identifier: LGPL-2.1-only \*/#x#/*#x#\2 */#x##x#%' | \ sed '1s%^/\*#x# \* [^#]*#x# \*#x# \*[ ]\+This library is free software; you can redistribute it and/or#x# \*[ ]\+modify it under the terms of the GNU Lesser General Public#x# \*[ ]\+License as published by the Free Software Foundation version 2.1#x# \*[ ]\+of the License.#x# \*/'"$NEWLINES"'%/\* SPDX-License-Identifier: LGPL-2.1-only \*/#x##x#%' | \ sed '1s%^\(\)/\*#x# \* [^#]*#x# \*#x# \*[ ]\+This library is free software; you can redistribute it and/or#x# \*[ ]\+modify it under the terms of the GNU Lesser General Public#x# \*[ ]\+License as published by the Free Software Foundation version 2.1#x# \*[ ]\+of the License.#x# \*#x#'"$COPYRIGHTS"' \*/'"$NEWLINES"'%/\* SPDX-License-Identifier: LGPL-2.1-only \*/#x#/*#x#\2 */#x##x#%' | \ sed '1s%^\(/\* SPDX-License-Identifier: LGPL-2.1-only \*/\|\)#x#/\*#x# \* [^#]*#x# \*#x# \*[ ]\+This library is free software; you can redistribute it and/or#x# \*[ ]\+modify it under the terms of the GNU General Public License as#x# \*[ ]\+published by the Free Software Foundation version 2 of the License.#x# \*#x#'"$COPYRIGHTS"' \*/'"$NEWLINES"'%/\* SPDX-License-Identifier: GPL-2.0-only \*/#x#/*#x#\2 */#x##x#%' } FILES=( $(files_all) ) for f in "${FILES[@]}"; do echo "processing \"$f\"..." in_file "$f" | join | adjust | unjoin | out_file "$f" done
* Add SPDX identifiersYegor Yefremov2019-08-122-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Software Package Data Exchange identifiers help to detect source file licenses and hence simplify the FOSS compliance process. Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com> https://github.com/thom311/libnl/pull/219 --- FILES=( lib/addr.c lib/attr.c lib/cache.c lib/cache_mngr.c lib/cache_mngt.c lib/data.c lib/error.c lib/fib_lookup/lookup.c lib/fib_lookup/request.c lib/genl/ctrl.c lib/genl/family.c lib/genl/genl.c lib/genl/mngt.c lib/handlers.c lib/hash.c lib/hashtable.c lib/idiag/idiag.c lib/idiag/idiag_meminfo_obj.c lib/idiag/idiag_msg_obj.c lib/idiag/idiag_req_obj.c lib/idiag/idiag_vegasinfo_obj.c lib/mpls.c lib/msg.c lib/netfilter/ct.c lib/netfilter/ct_obj.c lib/netfilter/exp.c lib/netfilter/exp_obj.c lib/netfilter/log.c lib/netfilter/log_msg.c lib/netfilter/log_msg_obj.c lib/netfilter/log_obj.c lib/netfilter/netfilter.c lib/netfilter/nfnl.c lib/netfilter/queue.c lib/netfilter/queue_msg.c lib/netfilter/queue_msg_obj.c lib/netfilter/queue_obj.c lib/nl.c lib/object.c lib/route/act.c lib/route/addr.c lib/route/class.c lib/route/classid.c lib/route/cls.c lib/route/link.c lib/route/neigh.c lib/route/neightbl.c lib/route/netconf.c lib/route/nexthop.c lib/route/nexthop_encap.c lib/route/nh_encap_mpls.c lib/route/pktloc.c lib/route/qdisc.c lib/route/route.c lib/route/route_obj.c lib/route/route_utils.c lib/route/rtnl.c lib/route/rule.c lib/route/tc.c lib/socket.c lib/utils.c lib/version.c lib/xfrm/ae.c lib/xfrm/lifetime.c lib/xfrm/sa.c lib/xfrm/selector.c lib/xfrm/sp.c lib/xfrm/template.c src/genl-ctrl-list.c src/idiag-socket-details.c src/lib/addr.c src/lib/class.c src/lib/cls.c src/lib/ct.c src/lib/exp.c src/lib/link.c src/lib/neigh.c src/lib/qdisc.c src/lib/route.c src/lib/rule.c src/lib/tc.c src/lib/utils.c src/nf-ct-add.c src/nf-ct-events.c src/nf-ct-list.c src/nf-exp-add.c src/nf-exp-delete.c src/nf-exp-list.c src/nf-log.c src/nf-monitor.c src/nf-queue.c src/nl-addr-add.c src/nl-addr-delete.c src/nl-addr-list.c src/nl-class-add.c src/nl-class-delete.c src/nl-class-list.c src/nl-classid-lookup.c src/nl-cls-add.c src/nl-cls-delete.c src/nl-cls-list.c src/nl-fib-lookup.c src/nl-link-enslave.c src/nl-link-ifindex2name.c src/nl-link-list.c src/nl-link-name2ifindex.c src/nl-link-release.c src/nl-link-set.c src/nl-link-stats.c src/nl-list-caches.c src/nl-list-sockets.c src/nl-monitor.c src/nl-neigh-add.c src/nl-neigh-delete.c src/nl-neigh-list.c src/nl-neightbl-list.c src/nl-pktloc-lookup.c src/nl-qdisc-add.c src/nl-qdisc-delete.c src/nl-qdisc-list.c src/nl-route-add.c src/nl-route-delete.c src/nl-route-get.c src/nl-route-list.c src/nl-rule-list.c src/nl-tctree-list.c src/nl-util-addr.c ) sed '1s#^#/* SPDX-License-Identifier: LGPL-2.1-only */\n#' "${FILES[@]}" -i
* lib: switch to using strerror_l() instead of strerror_r()André Draszik2016-08-251-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | glibc provides two versions of strerror_r(), which can be chosen between using feature test macros _GNU_SOURCE and _POSIX_C_SOURCE. libnl is built using the former, hence we get the glibc special version, and all code so far has been written for this. Other C libraries like musl on the other hand only try to be posix compliant, and only ever provide the posix version of strerror_r(), which has a different signature. Uses in libnl hence generally cause printf() of an *int* with a *string format* specifier for that reason. Additionally, strerror_r() has been deprecated: http://austingroupbugs.net/view.php?id=655 Switch to using strerror_l() (via our wrapper just introduced). Signed-off-by: André Draszik <adraszik@tycoint.com> Reviewed-by: Stephane Ayotte <sayotte@tycoint.com> Signed-off-by: Thomas Haller <thaller@redhat.com>
* lib: update ce-mask to uint64_tDavid Ahern2016-02-122-5/+5
| | | | | | | | | | | | | | | | | | | | lib/route/link.c already defines 32 attributes which fills the current uint32_t used for ce_mask. To accommodate more attributes the mask needs to be expanded. This patch updates the definition to uint64_t. The nl_object_diff API is maintained for ABI with existing users. A new nl_object_diff64 API is added for the expanded attribute list. The MSB of the 32-bit API is used to indicate if higher order attributes had a mismatch. (Suggested by Thomas). Note that LINK_ATTR_LINK_NETNSID changes. But since the attribute flags are not public API it shouldn't be a problem. http://lists.infradead.org/pipermail/libnl/2015-December/002078.html http://lists.infradead.org/pipermail/libnl/2015-December/002083.html Signed-off-by: David Ahern <dsa@cumulusnetworks.com> Signed-off-by: Thomas Haller <thaller@redhat.com>
* cache: avoid duplicate check on initial dumpHolger Eitzenberger2014-11-231-1/+1
| | | | | | | | | | | | | | | | | | The cache pickup does a check for duplicates for some time now. However, the pickup in nl_cache_refill() explicitely clears the cache, so the pickup doesn't need to actually do the dupe check, as uniqueness is already guaranteed be Netlink subsystem. And avoiding the dup check is beneficitial for performance reasons, as the current algorithm is O(n^2). http://lists.infradead.org/pipermail/libnl/2014-October/001680.html Fixes: 96bb7c9a4cdd10a2665c0f56120943e79e33c560 Signed-off-by: Holger Eitzenberger <holger@eitzenberger.org> Acked-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: Thomas Haller <thaller@redhat.com>
* Use thread-safe strerror_r() instead of strerror()Thomas Graf2013-02-281-2/+2
| | | | | | | We have only ever fed well known error codes into strerror() so it should never have been a problem though. Signed-off-by: Thomas Graf <tgraf@suug.ch>
* Move private header files to <netlink-private/*>Thomas Graf2013-01-242-2/+2
| | | | | | | This clarifies the seperation between public and private header files. Signed-off-by: Thomas Graf <tgraf@suug.ch>
* doc: documentation restructuringThomas Graf2012-05-101-1/+2
| | | | | | | | | | - changes the modules hierarchy to better represent the set of libaries - list the header file that needs to be included - remove examples/doc from api ref that is included in the guide - add references to the guide - fix doxygen api linking for version 1.8.0 - readd doxygen mainpage to config file - fix a couple of doxygen doc bugs
* Updated link documentationThomas Graf2011-07-281-2/+0
| | | | | | | - API documentation - developer guide - enabled doxygen navbar - fixed css
* Documentation updatesThomas Graf2011-03-211-1/+2
| | | | Mostly killing doxygen warnings, some doc updates to caching
* restructure module documentation orderThomas Graf2008-12-101-1/+0
| | | | split hiearchy into one top level module per library
* Remove old line counting while dumpingThomas Graf2008-05-231-11/+10
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* Rename struct nl_handle to struct nl_sockThomas Graf2008-05-151-4/+4
| | | | | | | | The idea of a common handle is long revised and only misleading, nl_handle really represents a socket with some additional action handlers assigned to it. Alias for nl_handle is kept for backwards compatibility.
* Thread-safe error handlingThomas Graf2008-05-142-19/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In order for the interface to become more thread safe, the error handling was revised to no longer depend on a static errno and error string buffer. This patch converts all error paths to return a libnl specific error code which can be translated to a error message using nl_geterror(int error). The functions nl_error() and nl_get_errno() are therefore obsolete. This change required various sets of function prototypes to be changed in order to return an error code, the most prominent are: struct nl_cache *foo_alloc_cache(...); changed to: int foo_alloc_cache(..., struct nl_cache **); struct nl_msg *foo_build_request(...); changed to: int foo_build_request(..., struct nl_msg **); struct foo *foo_parse(...); changed to: int foo_parse(..., struct foo **); This pretty much only leaves trivial allocation functions to still return a pointer object which can still return NULL to signal out of memory. This change is a serious API and ABI breaker, sorry!
* Fix memory leak when parsing netlink messages into cachesThomas Graf2007-12-171-1/+1
| | | | The reference created by the parsers was never given back.
* Export interface to define cachesThomas Graf2007-09-171-2/+1
| | | | | | | | | | This interface was internal so far which required all code defining caches to be compiled with the sources available. In order to simplify the interface, the co_msg_parser prototype was changed to take the struct nl_parser_param directly instead of a void *. It used to be void * because the co_msg_parser was directly passed as the NL_CB_VALID callback function.
* Initial importThomas Graf2007-09-142-0/+540
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