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BPF_FUNC_get_prandom_u32 limitation #91

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QiongwenXu opened this issue Aug 31, 2020 · 0 comments
Open

BPF_FUNC_get_prandom_u32 limitation #91

QiongwenXu opened this issue Aug 31, 2020 · 0 comments

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@QiongwenXu
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we use the following ways to deal with a program with random helper functions:

  1. all instructions CALL BPF_FUNC_get_prandom_u32 in the original program won't be modified
  2. new instruction CALL BPF_FUNC_get_prandom_u32 won't be generated
  3. interpreter: get random value from pseudo random values in the input
  4. validator: BPF_FUNC_get_prandom_u32 instructions with the same instruction id in two programs are set as the same symbolic value
@QiongwenXu QiongwenXu changed the title BPF_FUNC_get_prandom_u32 BPF_FUNC_get_prandom_u32 limitation Aug 31, 2020
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