Ubuntu 24.04 starts gatekeeper and this error occurs

[ShawnLeung87]

rte_bpf_elf_load(fname="/opt/gatekeeper/lua/bpf/declined.bpf", sname="pkt") successfully creates 0x78aaf80a4000(jit={.func=0x78aaf80a3000,.sz=8});
resolve_xsym(1): EBPF_PSEUDO_CALL to external function: init_ctx_to_cookie
rte_bpf_elf_load(fname="/opt/gatekeeper/lua/bpf/grantedv2.bpf", sname="init") successfully creates 0x78aaf80a2000(jit={.func=0x78aaf80a1000,.sz=400});
resolve_xsym(1): EBPF_PSEUDO_CALL to external function: pkt_ctx_to_cookie
resolve_xsym(4): EBPF_PSEUDO_CALL to external function: pkt_ctx_to_pkt
resolve_xsym(34): EBPF_PSEUDO_CALL to external function: gk_bpf_prep_for_tx
rte_bpf_elf_load(fname="/opt/gatekeeper/lua/bpf/grantedv2.bpf", sname="pkt") successfully creates 0x78aaf80a0000(jit={.func=0x78aaf809f000,.sz=384});
resolve_xsym(1): EBPF_PSEUDO_CALL to external function: init_ctx_to_cookie
rte_bpf_elf_load(fname="/opt/gatekeeper/lua/bpf/web.bpf", sname="init") successfully creates 0x78aaf809e000(jit={.func=0x78aaf809d000,.sz=400});
resolve_xsym(1): EBPF_PSEUDO_CALL to external function: pkt_ctx_to_cookie
resolve_xsym(4): EBPF_PSEUDO_CALL to external function: pkt_ctx_to_pkt
resolve_xsym(147): EBPF_PSEUDO_CALL to external function: gk_bpf_prep_for_tx
rte_bpf_elf_load(fname="/opt/gatekeeper/lua/bpf/web.bpf", sname="pkt") successfully creates 0x78aaf7e5d000(jit={.func=0x78aaf7e5c000,.sz=1008});
resolve_xsym(1): EBPF_PSEUDO_CALL to external function: init_ctx_to_cookie
rte_bpf_elf_load(fname="/opt/gatekeeper/lua/bpf/tcp-services.bpf", sname="init") successfully creates 0x78aaf7e5b000(jit={.func=0x78aaf7e5a000,.sz=858});
resolve_xsym(1): EBPF_PSEUDO_CALL to external function: pkt_ctx_to_cookie
resolve_xsym(4): EBPF_PSEUDO_CALL to external function: pkt_ctx_to_pkt
resolve_xsym(, 1288) error code: -2
rte_bpf_elf_load(fname="/opt/gatekeeper/lua/bpf/tcp-services.bpf", sname="pkt") failed, error code: 2
Main/6 2024-09-27 19:17:17 ERR gk_load_bpf_flow_handler(): file "/opt/gatekeeper/lua/bpf/tcp-services.bpf" does not have the BPF program "pkt"; rte_errno = 2: No such file or directory
Main/6 2024-09-27 19:17:17 ERR config: /opt/gatekeeper/lua/gk.lua:116: Failed to load BPF program: /opt/gatekeeper/lua/bpf/tcp-services.bpf

[AltraMayor]

The error message resolve_xsym(, 1288) error code: -2 suggests that tcp-services.bpf is not freshly compiled from bpf/tcp-services.c available on our repository. Have you compiled and copied the BPFs that come with Gatekeeper v1.2.0 RC2 to /opt/gatekeeper/lua/bpf/? If yes, have you edited bpf/tcp-services.c in any capacity?

[ShawnLeung87]

bpf is the default bpf for the project. The code was copied from the master branch today.

[ShawnLeung87]

Is it because of clang version problem?
My server clang version is
Ubuntu clang version 18.1.3 (1ubuntu1)
Target: x86_64-pc-linux-gnu
Thread model: posix
InstalledDir: /usr/bin
Found candidate GCC installation: /usr/bin/../lib/gcc/x86_64-linux-gnu/13
Selected GCC installation: /usr/bin/../lib/gcc/x86_64-linux-gnu/13
Candidate multilib: .;@m64
Candidate multilib: 32;@m32
Candidate multilib: x32;@MX32
Selected multilib: .;@m64

[AltraMayor]

I was able to reproduce the problem on a fresh install. Thank you.

[AltraMayor]

Could you apply pull request #712, recompile and copy the BPFs, and try again?

[ShawnLeung87]

It works, most of the bpfs I wrote can run normally. There is a BPF exception, which should be due to the syntax change of the new version of clang. I will take the time to check the wrong BPF after the holiday is over.