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272461 |
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02-Oct-2014 |
gjb |
Copy stable/10@r272459 to releng/10.1 as part of the 10.1-RELEASE process.
Approved by: re (implicit) Sponsored by: The FreeBSD Foundation |
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256281 |
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10-Oct-2013 |
gjb |
Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.
Approved by: re (implicit) Sponsored by: The FreeBSD Foundation
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207081 |
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22-Apr-2010 |
jkim |
If a conditional jump instruction has the same jt and jf, do not perform the test and jump unconditionally.
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199721 |
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23-Nov-2009 |
jkim |
- Add more aggressive BPF JIT optimization. This is in more favor of i386 while the previous commit was more amd64-centric. - Use calloc(3) instead of malloc(3)/memset(3) in user land[1].
Submitted by: ed[1]
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199619 |
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20-Nov-2009 |
jkim |
Add an experimental and rudimentary JIT optimizer to reduce unncessary overhead from short BPF filter programs such as "get the first 96 bytes".
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199615 |
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20-Nov-2009 |
jkim |
General style cleanup, no functional change.
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199603 |
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20-Nov-2009 |
jkim |
- Allocate scratch memory on stack instead of pre-allocating it with the filter as we do from bpf_filter()[1]. - Revert experimental use of contigmalloc(9)/contigfree(9). It has no performance benefit over malloc(9)/free(9)[2].
Requested by: rwatson[1] Pointed out by: rwatson, jhb, alc[2]
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199531 |
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19-Nov-2009 |
jkim |
Fix tinderbox build for i386 and sync amd64 with it.
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199498 |
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18-Nov-2009 |
jkim |
- Change internal function bpf_jit_compile() to return allocated size of the generated binary and remove page size limitation for userland. - Use contigmalloc(9)/contigfree(9) instead of malloc(9)/free(9) to make sure the generated binary aligns properly and make it physically contiguous.
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199492 |
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18-Nov-2009 |
jkim |
- Make BPF JIT compiler working again in userland. We are limiting size of generated native binary to page size for now. - Update copyright date and fix some style nits.
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182220 |
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26-Aug-2008 |
jkim |
Move empty filter handling to MI source.
MFC after: 3 days
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182173 |
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25-Aug-2008 |
jkim |
Fix a typo in copyrights.
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181848 |
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18-Aug-2008 |
jkim |
Correctly check unsignedness of all BPF_LD|BPF_IND instructions. This is roughly from sys/net/bpf_filter.c r1.12 and r1.14.
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181846 |
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18-Aug-2008 |
jkim |
- Make these files compilable on user land. - Update copyrights and fix style(9).
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181700 |
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13-Aug-2008 |
jkim |
Use int32_t/int16_t instead of int/short as sys/net/bpf_filter.c does.
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181697 |
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13-Aug-2008 |
jkim |
- Remove unnecessary jump instruction(s) when offset(s) is/are zero(s). - Constantly use conditional jumps for unsigned integers.
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181648 |
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12-Aug-2008 |
jkim |
Update copyrights and fix style(9).
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181644 |
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12-Aug-2008 |
jkim |
Replace all stack usages with registers and remove unused macros.
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179977 |
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24-Jun-2008 |
jkim |
Emit opcodes closer to GNU as(1) generated codes and micro-optimize.
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179967 |
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23-Jun-2008 |
jkim |
Rehash and clean up BPF JIT compiler macros to match AT&T notations.
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153995 |
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03-Jan-2006 |
jkim |
- Explicitly validate an empty filter to match bpf_filter() comment[1]. - Do not use BPF JIT compiler for an empty filter.
[1] Pointed out by: darrenr
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153157 |
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06-Dec-2005 |
jkim |
s/M_WAITOK/M_NOWAIT/ while mutex is held.
Pointed out by: csjp
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153156 |
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06-Dec-2005 |
jkim |
- Micro-optimize `mov $0, %edx' -> `xor %edx, %edx'. - Correct amd64 macro style (no functional change).
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153151 |
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06-Dec-2005 |
jkim |
Add experimental BPF Just-In-Time compiler for amd64 and i386.
Use the following kernel configuration option to enable:
options BPF_JITTER
If you want to use bpf_filter() instead (e. g., debugging), do:
sysctl net.bpf.jitter.enable=0
to turn it off.
Currently BIOCSETWF and bpf_mtap2() are unsupported, and bpf_mtap() is partially supported because 1) no need, 2) avoid expensive m_copydata(9).
Obtained from: WinPcap 3.1 (for i386)
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