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2013-03-15all: import netsniff-ng 0.5.8-rc0 sourceDaniel Borkmann1-0/+46
We decided to get rid of the old Git history and start a new one for several reasons: *) Allow / enforce only high-quality commits (which was not the case for many commits in the history), have a policy that is more close to the one from the Linux kernel. With high quality commits, we mean code that is logically split into commits and commit messages that are signed-off and have a proper subject and message body. We do not allow automatic Github merges anymore, since they are total bullshit. However, we will either cherry-pick your patches or pull them manually. *) The old archive was about ~27MB for no particular good reason. This basically derived from the bad decision that also some PDF files where stored there. From this moment onwards, no binary objects are allowed to be stored in this repository anymore. The old archive is not wiped away from the Internet. You will still be able to find it, e.g. on git.cryptoism.org etc. Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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netfilter: nft_limit: fix divided by zero panic
After I input the following nftables rule, a panic happened on my system: # nft add rule filter OUTPUT limit rate 0xf00000000 bytes/second divide error: 0000 [#1] SMP [ ... ] RIP: 0010:[<ffffffffa059035e>] [<ffffffffa059035e>] nft_limit_pkt_bytes_eval+0x2e/0xa0 [nft_limit] Call Trace: [<ffffffffa05721bb>] nft_do_chain+0xfb/0x4e0 [nf_tables] [<ffffffffa044f236>] ? nf_nat_setup_info+0x96/0x480 [nf_nat] [<ffffffff81753767>] ? ipt_do_table+0x327/0x610 [<ffffffffa044f677>] ? __nf_nat_alloc_null_binding+0x57/0x80 [nf_nat] [<ffffffffa058b21f>] nft_ipv4_output+0xaf/0xd0 [nf_tables_ipv4] [<ffffffff816f4aa2>] nf_iterate+0x62/0x80 [<ffffffff816f4b33>] nf_hook_slow+0x73/0xd0 [<ffffffff81703d0d>] __ip_local_out+0xcd/0xe0 [<ffffffff81701d90>] ? ip_forward_options+0x1b0/0x1b0 [<ffffffff81703d3c>] ip_local_out+0x1c/0x40 This is because divisor is 64-bit, but we treat it as a 32-bit integer, then 0xf00000000 becomes zero, i.e. divisor becomes 0. Signed-off-by: Liping Zhang <liping.zhang@spreadtrum.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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