Dumping objects as environment variables has never been implemented
completely and only increases the size of the library for no real
purpose. Integration into scripts is better achieved by implementing
a python module anyway.
Adds a cli based tool to add/update traffic classes. This tool requires
each class to be supported via the respetive qdisc module in
pkglibdir/cli/qdisc/$name.so.
Syntax:
nl-class-add --dev eth2 --parent 1: --id 1:1 htb --rate 100mbit
nl-class-add --update --dev eth2 --id 1:1 htb --rate 200mbit
A database to resolve qdisc/class names to classid values and vice versa.
The function rtnl_tc_handle2str() and rtnl_tc_str2handle() will resolve
names automatically.
A CLI based tool nl-classid-lookup is provided to integrate the database
into existing iproute2 scripts.
Adds a cli based tool to add/update/replace qdiscs. This tool requires
each qdisc to be supported via a dynamic loadable module in
pkglibdir/cli/qdisc/$name.so.
So far HTB and blackhole have been implemented.
Syntax:
nl-qdisc-add --dev eth2 --parent root --id 1: htb --r2q=5
nl-qdisc-add --update-only --dev eth2 --id 1: htb --r2q=10
I have a patch against commit d378220c96
extending libnl with a facility to receive generic netlink messages sent
to multicast groups.
Essentially it add one new function genl_ctrl_resolve_grp which
prototype looks like this
int genl_ctrl_resolve_grp(struct nl_sock *sk, const char *family_name,
const char *grp_name)
It resolves the family name and the group name to group id. Then
the returned id can be used in nl_socket_add_membership to subscribe
to multicast messages.
Besides that it adds two more functions
uint32_t nl_socket_get_peer_groups(struct nl_sock *sk)
void nl_socket_set_peer_groups(struct nl_sock *sk, uint32_t groups)
allowing to modify the socket peer groups field. So it's possible to
multicast messages from the user space using the legacy interface.
Looks like there is no way (or I was not able to find one?) to modify
the netlink socket destination group from the user space, when the
group id is greater then 32.
the patch below adds the possibility to
pass user data to callbacks of type
change_func_t when using the nl_cache_mngr_*
family of functions.
If there is any better way to do this,
without duplicating the code in
cache_mngr.c please let me know.
Currently two attributes are regarded as different if they are absent in
both objects to be compared. This is obviously incorrect, change to
regard objects as different if an attribute is only present on one of
them or if the attribute data differs.
Signed-off-by: Patrick McHardy <kaber@trash.net>
nfnl_queue_msg_send_verdict_payload() will to send the verdict, mark,
and possibly changed payload through the netlink socket.
Add a few docbook comments in other funcs.
Signed-off-by: Karl Hiramoto <karl@hiramoto.org>
Create new function nl_send_iovec() to be used to send multiple 'struct iovec'
through the netlink socket. This will be used for NF_QUEUE, to send
packet payload of a modified packet.
Refactor nl_send() to use nl_send_iovec() sending a single struct iovec.
Create new function nl_auto_complete() by refactoring nl_send_auto_complete(),
so other functions that call nl_send may also use nl_auto_complete()
Signed-off-by: Karl Hiramoto <karl@hiramoto.org>
Issues solved:
* PACKAGE_VERSION was abused for SOVERSION
* unneeded DEP stage
* did not support out-of-tree builds
* no way to turn off silent mode
* overriding CFLAGS at make time was not supported
* no static libs were provided
Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Instead of calling the membership functions several times it is
helpfull to extend the API and make the single group functions a
special case.
The value 0 (NFNLGRP_NONE) terminates this list.
Example use:
nl_socket_add_memberships(sock, group_1, group_2, 0);
nl_socket_drop_memberships(sock, group_1, group_2, 0);
Signed-off-by: Holger Eitzenberger <holger@eitzenberger.org>
commit e92539843a0c7e5116254382626cce226bf2135e
Author: Patrick McHardy <kaber@trash.net>
Date: Thu Oct 23 13:46:16 2008 +0200
libnl: nfqueue: add nfqueue specific socket allocation function
nfqueue users usually send verdict messages from the receive callback.
When waiting for ACKs, the receive callback might be called again
recursively until the stack blows up.
Add a nfqueue specific socket allocation function that automatically
disables ACKing for the socket.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Hello! It seems that libnl is missing an include for limits.h, which
causes it to FTBFS when glibc 2.8 is installed (currently in
experimental, so I left this bug severity at "normal").
In file included from addr.c:28:
../include/netlink-local.h:119:1: warning: "__deprecated" redefined
In file included from /usr/include/linux/stddef.h:4,
from /usr/include/linux/posix_types.h:4,
from /usr/include/linux/types.h:8,
from ../include/netlink-local.h:37,
from addr.c:28:
/usr/include/linux/compiler.h:45:1: warning: this is the location of the previous definition
This happens about 100 times. Suggested patch:
This changes make nfnl_ct_get_src_port() and others return the value
in host byte order rather than in network byte order.
Also splits printing into details and statistical section and
improves readability.
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.
