From: Alexei Starovoitov Date: Wed, 26 Aug 2020 19:47:57 +0000 (-0700) Subject: Merge branch 'resolve_prog_type' X-Git-Tag: howlett/maple_spf/20210104~792^2~394^2~31 X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=1fc0e18b6e06cbc174a814d8fe69d37212287d1f;p=users%2Fjedix%2Flinux-maple.git Merge branch 'resolve_prog_type' Udip Pant says: ==================== This patch series adds changes in verifier to make decisions such as granting of read / write access or enforcement of return code status based on the program type of the target program while using dynamic program extension (of type BPF_PROG_TYPE_EXT). The BPF_PROG_TYPE_EXT type can be used to extend types such as XDP, SKB and others. Since the BPF_PROG_TYPE_EXT program type on itself is just a placeholder for those, we need this extended check for those extended programs to actually work with proper access, while using this option. Patch #1 includes changes in the verifier. Patch #2 adds selftests to verify write access on a packet for a valid extension program type Patch #3 adds selftests to verify proper check for the return code Patch #4 adds selftests to ensure access permissions and restrictions for some map types such sockmap. Changelogs: v2 -> v3: * more comprehensive resolution of the program type in the verifier based on the target program (and not just for the packet access) * selftests for checking return code and map access * Also moved this patch to 'bpf-next' from 'bpf' tree v1 -> v2: * extraction of the logic to resolve prog type into a separate method * selftests to check for packet access for a valid freplace prog ==================== Acked-by: Yonghong Song Acked-by: Toke Høiland-Jørgensen Signed-off-by: Alexei Starovoitov --- 1fc0e18b6e06cbc174a814d8fe69d37212287d1f