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- use .TP for option and example labels
- use .BR for references to other manpages, also in description texts
- highlight options using .B in description texts
- misc. cleanups
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Add -D,--define option to pass macro/define for C preprocessor
(e.g. to use #ifdef's within bpf file). Option allows to pass
multiple -D,--define options.
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
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Example shows how to filter rtnetlink messages by ifindex & oper state.
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Usage: man --warnings -E UTF-8 -l -Tutf8 -Z foo.8 > /dev/null
Signed-off-by: Kartik Mistry <kartik.mistry@gmail.com>
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When viewing the bpfc man page I noticed a mistake saying that the BPF
compiler included in the pcap library is the *only* compiler. I changed
it to say the *only other* compiler since bpfc is also a BPF compiler.
Signed-off-by: Jon Schipp <jonschipp@gmail.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Let a and x register also be addressed as %x and %a.
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
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In all the tools' man pages the synopsis line is indented by one space
with respect to the text in the sections above and below. Remove the
space to have consistent alignment.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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As per [1] we now also have an official hw device identifier for
Netlink. Add it to bpfc man page as we can capture from an nlmon
device.
[1] http://patchwork.ozlabs.org/patch/253293/
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
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Add a colophon to the end of each man page.
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
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Add the example in bpfc code from http://outflux.net/teach-seccomp/
to the man page, so that people can also experiment with seccomp
bpf and to demonstrate that there are no limits on bpfc when it
comes to this. Actually this code is even more efficient than the
one given in the example URL above.
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
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Seccomp-BPF is used for syscall sandboxing. bpfc can also be used for
creating such filters without any problems.
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
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Some fixes all over, part 1.
Signed-off-by: Kartik Mistry <kartik@debian.org>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
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This patch allows bpf programs to be passed to the C preprocessor
before handing over to bpfc. Example:
#define ETH_P_IP 0x800
ldh [12]
jne #ETH_P_IP, drop
ldb [23]
jneq #6, drop
ldh [20]
jset #0x1fff, drop
ldxb 4 * ([14] & 0xf)
ldh [x + 14]
jeq #0x16, pass
ldh [x + 16]
jne #0x16, drop
pass: ret #-1
drop: ret #0
Compile with: bpfc -i foo -p
Suggested-by: John Lange <JLange@trendium.com>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
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Conflicts resolved by hand:
bpfc.8
ifpps.8
netsniff-ng.8
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
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Replace "on default" by "by default", make it a bit more clear what the
seed in the -E/--seed option is for and mention exit after display of
information on --version and --help.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Signed-off-by: Stephen Wadeley <swadeley@redhat.com>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
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Signed-off-by: Stephen Wadeley <swadeley@redhat.com>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
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Only have Makefile specific folders in the project root where the
binaries are stored, the rest should be part of the repository root.
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
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