I'm using libnl in a program which I give to valgrind
in order to track memory errors / leaks. When my program
exits, it complains about non-freed memory, allocated in
3 places in classid.c, at lines 280, 284 and 289.
It seems related to the module's constructor classid_init
which allocates resources, with no destructor to free it.
The attached patch tries to fix this issue by registering
a destructor which performs the tree liberation at exit.
Manually editing etc/libnl/classid before adding tc objects is a pain.
This patch adds code to attempt auto generating a unique tc id which
will then be assigned to the provided name and added to the classid
file.
This will make the following commands work with prior definitions of
the names "top" and "test"
sudo sbin/nl-qdisc-add --dev eth0 --parent root --id top htb
sudo sbin/nl-class-add --dev eth0 --parent top --id test htb --rate 100mbit
It will generate the following ids automatically:
4001: top
4001:1 test
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.
