mirror of
https://github.com/golang/net.git
synced 2026-04-01 02:47:08 +09:00
49bb7cea24
Add a JumpIfX instruction which implements conditional jumps using
RegA and RegX. This is in addition to the pre-existing JumpIf
instruction which uses RegA and K.
This instruction / addressing mode is not mentionned in the original BPF
paper, but is supported by tools like bpf_asm, and has recently been
added to the kernel's filter.txt.
Simplify some of the parsing logic, and add a separate helper for
checking for "fake" JumpIfs.
Add JumpIfX support to the BPF vm.
Update testdata with JumpIfX instructions, and add tests
for both the assembler/disassembler and vm.
Fixes golang/go#27814
Change-Id: I0c3f6ac7eb5b4cd4d9c5af8784ee2e8d25195a0a
GitHub-Last-Rev: 39a88165b2
GitHub-Pull-Request: golang/net#20
Reviewed-on: https://go-review.googlesource.com/c/136895
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2 lines
586 B
Plaintext
2 lines
586 B
Plaintext
57,0 0 0 42,1 0 0 42,96 0 0 3,97 0 0 3,48 0 0 42,40 0 0 42,32 0 0 42,80 0 0 42,72 0 0 42,64 0 0 42,177 0 0 42,128 0 0 0,32 0 0 4294963200,32 0 0 4294963204,32 0 0 4294963256,2 0 0 3,3 0 0 3,4 0 0 42,20 0 0 42,36 0 0 42,52 0 0 42,68 0 0 42,84 0 0 42,100 0 0 42,116 0 0 42,148 0 0 42,164 0 0 42,12 0 0 0,28 0 0 0,44 0 0 0,60 0 0 0,76 0 0 0,92 0 0 0,108 0 0 0,124 0 0 0,156 0 0 0,172 0 0 0,132 0 0 0,5 0 0 17,21 15 16 42,21 0 15 42,53 0 14 42,37 0 13 42,37 11 12 42,53 10 11 42,69 9 10 42,29 8 9 0,29 0 8 0,61 0 7 0,45 0 6 0,45 4 5 0,61 3 4 0,77 2 3 0,7 0 0 0,135 0 0 0,22 0 0 0,6 0 0 42,
|