]> git.baikalelectronics.ru Git - kernel.git/commit
projects / kernel.git / commit
? search:
summary | shortlog | log | commit | commitdiff | tree
(parent: 19802b7) | patch
bpf: verifier (add branch/goto checks)
authorAlexei Starovoitov <ast@plumgrid.com>
Fri, 26 Sep 2014 07:17:05 +0000 (00:17 -0700)
committerDavid S. Miller <davem@davemloft.net>
Fri, 26 Sep 2014 19:05:15 +0000 (15:05 -0400)
commit52ff1722e7751df5037c4be15188b0a2263c4b22
tree0abd11c01180004027ec187475ab48db9ac054d5tree | snapshot
parent19802b741abbbbab46040519683421837ed3d7abcommit | diff
bpf: verifier (add branch/goto checks)

check that control flow graph of eBPF program is a directed acyclic graph

check_cfg() does:
- detect loops
- detect unreachable instructions
- check that program terminates with BPF_EXIT insn
- check that all branches are within program boundary

Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
kernel/bpf/verifier.c diff | blob | history
Linux Kernel Source Tree.