>>>> On Sun, Jul 10, 2022 at 3:38 AM Jose E. Marchesi >>>> <jose.marchesi@xxxxxxxxxx> wrote: >>>>> >>>>> >>>>> > On Sat, Jul 9, 2022 at 4:41 PM Jose E. Marchesi >>>>> > <jose.marchesi@xxxxxxxxxx> wrote: >>>>> >> >>>>> >> >>>>> >> > On Sat, Jul 9, 2022 at 2:32 PM James Hilliard <james.hilliard1@xxxxxxxxx> wrote: >>>>> >> >> >>>>> >> >> On Sat, Jul 9, 2022 at 2:21 PM Jose E. Marchesi >>>>> >> >> <jose.marchesi@xxxxxxxxxx> wrote: >>>>> >> >> > >>>>> >> >> > >>>>> >> >> > > On Sat, Jul 9, 2022 at 11:24 AM Jose E. Marchesi >>>>> >> >> > > <jose.marchesi@xxxxxxxxxx> wrote: >>>>> >> >> > >> >>>>> >> >> > >> >>>>> >> >> > >> > On Fri, Jul 8, 2022 at 12:33 PM Jose E. Marchesi >>>>> >> >> > >> > <jose.marchesi@xxxxxxxxxx> wrote: >>>>> >> >> > >> >> >>>>> >> >> > >> >> >>>>> >> >> > >> >> >> On Wed, Jul 6, 2022 at 10:13 AM James Hilliard >>>>> >> >> > >> >> >> <james.hilliard1@xxxxxxxxx> wrote: >>>>> >> >> > >> >> >>> >>>>> >> >> > >> >> >>> Note I'm testing with the following patches: >>>>> >> >> > >> >> >>> >>> https://lore.kernel.org/bpf/20220706111839.1247911-1-james.hilliard1@xxxxxxxxx/ >>>>> >> >> > >> >> >>> >>> https://lore.kernel.org/bpf/20220706140623.2917858-1-james.hilliard1@xxxxxxxxx/ >>>>> >> >> > >> >> >>> >>>>> >> >> > >> >> >>> It would appear there's some compatibility issues with bpftool gen and >>>>> >> >> > >> >> >>> GCC, not sure what side though is wrong here: >>>>> >> >> > >> >> >>> /home/buildroot/buildroot/output/per-package/systemd/host/sbin/bpftool >>>>> >> >> > >> >> >>> gen object src/core/bpf/restrict_ifaces/restrict-ifaces.bpf.o >>>>> >> >> > >> >> >>> src/core/bpf/restrict_ifaces/restrict-ifaces.bpf.unstripped.o >>>>> >> >> > >> >> >>> libbpf: failed to find BTF info for > global/extern symbol 'sd_restrictif_i' >>>>> >> >> > >> >> >>> Error: failed to link >>>>> >> >> > >> >> >>> 'src/core/bpf/restrict_ifaces/restrict-ifaces.bpf.unstripped.o': >>>>> >> >> > >> >> >>> Unknown error -2 (-2) >>>>> >> >> > >> >> >>> >>>>> >> >> > >> >> >>> Relevant difference seems to be this: >>>>> >> >> > >> >> >>> GCC: >>>>> >> >> > >> >> >>> [55] FUNC 'sd_restrictif_i' type_id=47 linkage=static >>>>> >> >> > >> >> >>> Clang: >>>>> >> >> > >> >> >>> [27] FUNC 'sd_restrictif_i' type_id=26 linkage=global >>>>> >> >> > >> >> > >>>>> >> >> > >> >> > For functions GCC generates a BTF_KIND_FUNC entry, which has no linkage >>>>> >> >> > >> >> > information, or so we thought: I just looked at bpftool/btf.c and I >>>>> >> >> > >> >> > found the linkage info for function types is expected to be encoded in >>>>> >> >> > >> >> > the vlen field of BTF_KIND_FUNC entries (why not adding a btf_func >>>>> >> >> > >> >> > instead???) which is surprising to say the least. >>>>> >> >> > >> >> > >>>>> >> >> > >> >> > We are changing GCC to encode the linkage info in vlen for these types. >>>>> >> >> > >> >> > Thanks for reporting this. >>>>> >> >> > >> >> >>>>> >> >> > >> >> Patch sent to GCC upstream: >>>>> >> >> > >> >> https://gcc.gnu.org/pipermail/gcc-patches/2022-July/598090.html >>>>> >> >> > >> > >>>>> >> >> > >> > I applied that patch on top of GCC 12.1.0 and it appears to fix the >>>>> >> >> > >> > bpftool gen object bug. >>>>> >> >> > >> > >>>>> >> >> > >> > I am however now hitting a different error during skeleton generation: >>>>> >> >> > >> > /home/buildroot/buildroot/output/per-package/systemd/host/sbin/bpftool >>>>> >> >> > >> > gen skeleton src/core/bpf/restrict_ifaces/restrict-ifaces.bpf.o >>>>> >> >> > >> > libbpf: elf: skipping unrecognized data section(9) .comment >>>>> >> >> > >> > libbpf: failed to alloc map 'restrict.bss' content buffer: -22 >>>>> >> >> > >> > Error: failed to open BPF object file: Invalid argument >>>>> >> >> > >> >>>>> >> >> > >> What is the size of the .bss section in the object file? Try with: >>>>> >> >> > >> >>>>> >> >> > >> $ size restrict-ifaces.bpf.o >>>>> >> >> > > >>>>> >> >> > > $ size >>>>> >> > output/build/systemd-custom/build/src/core/bpf/restrict_ifaces/restrict-ifaces.bpf.o >>>>> >> >> > > text data bss dec hex filename >>>>> >> >> > > 386 25 0 411 19b >>>>> >> >> > > >>> output/build/systemd-custom/build/src/core/bpf/restrict_ifaces/restrict-ifaces.bpf.o >>>>> >> >> > >>>>> >> >> > Right, so the .bss section is empty. I see a `const volatile unsigned >>>>> >> >> > char is_allow_list = 0;' in restrict-ifaces.bpf.c, but that goes to >>>>> >> >> > .data and not to .bss, as expected. >>>>> >> >> > >>>>> >> >> > If you build restrict-ifaces.bpf.o with LLVM, is the bss still empty? I >>>>> >> >> > don't think the code in libbpf.c even checks for this eventuality... >>>>> >> >> >>>>> >> >> LLVM version(which skeleton generation works with): >>>>> >> >> $ size restrict-ifaces.bpf.o >>>>> >> >> text data bss dec hex filename >>>>> >> >> 323 24 0 347 15b restrict-ifaces.bpf.o >>>>> >> >> >>>>> >> >> $ /home/buildroot/buildroot/output/per-package/systemd/host/sbin/bpftool >>>>> >> >> btf dump file restrict-ifaces.bpf.o format raw >>>>> >> >> [1] PTR '(anon)' type_id=3 >>>>> >> >> [2] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED >>>>> >> >> [3] ARRAY '(anon)' type_id=2 index_type_id=4 nr_elems=1 >>>>> >> >> [4] INT '__ARRAY_SIZE_TYPE__' size=4 bits_offset=0 nr_bits=32 encoding=(none) >>>>> >> >> [5] PTR '(anon)' type_id=6 >>>>> >> >> [6] TYPEDEF '__u32' type_id=7 >>>>> >> >> [7] INT 'unsigned int' size=4 bits_offset=0 nr_bits=32 encoding=(none) >>>>> >> >> [8] PTR '(anon)' type_id=9 >>>>> >> >> [9] TYPEDEF '__u8' type_id=10 >>>>> >> >> [10] INT 'unsigned char' size=1 bits_offset=0 nr_bits=8 encoding=(none) >>>>> >> >> [11] STRUCT '(anon)' size=24 vlen=3 >>>>> >> >> 'type' type_id=1 bits_offset=0 >>>>> >> >> 'key' type_id=5 bits_offset=64 >>>>> >> >> 'value' type_id=8 bits_offset=128 >>>>> >> >> [12] VAR 'sd_restrictif' type_id=11, linkage=global >>>>> >> >> [13] PTR '(anon)' type_id=14 >>>>> >> >> [14] CONST '(anon)' type_id=15 >>>>> >> >> [15] STRUCT '__sk_buff' size=192 vlen=33 >>>>> >> >> 'len' type_id=6 bits_offset=0 >>>>> >> >> 'pkt_type' type_id=6 bits_offset=32 >>>>> >> >> 'mark' type_id=6 bits_offset=64 >>>>> >> >> 'queue_mapping' type_id=6 bits_offset=96 >>>>> >> >> 'protocol' type_id=6 bits_offset=128 >>>>> >> >> 'vlan_present' type_id=6 bits_offset=160 >>>>> >> >> 'vlan_tci' type_id=6 bits_offset=192 >>>>> >> >> 'vlan_proto' type_id=6 bits_offset=224 >>>>> >> >> 'priority' type_id=6 bits_offset=256 >>>>> >> >> 'ingress_ifindex' type_id=6 bits_offset=288 >>>>> >> >> 'ifindex' type_id=6 bits_offset=320 >>>>> >> >> 'tc_index' type_id=6 bits_offset=352 >>>>> >> >> 'cb' type_id=16 bits_offset=384 >>>>> >> >> 'hash' type_id=6 bits_offset=544 >>>>> >> >> 'tc_classid' type_id=6 bits_offset=576 >>>>> >> >> 'data' type_id=6 bits_offset=608 >>>>> >> >> 'data_end' type_id=6 bits_offset=640 >>>>> >> >> 'napi_id' type_id=6 bits_offset=672 >>>>> >> >> 'family' type_id=6 bits_offset=704 >>>>> >> >> 'remote_ip4' type_id=6 bits_offset=736 >>>>> >> >> 'local_ip4' type_id=6 bits_offset=768 >>>>> >> >> 'remote_ip6' type_id=17 bits_offset=800 >>>>> >> >> 'local_ip6' type_id=17 bits_offset=928 >>>>> >> >> 'remote_port' type_id=6 bits_offset=1056 >>>>> >> >> 'local_port' type_id=6 bits_offset=1088 >>>>> >> >> 'data_meta' type_id=6 bits_offset=1120 >>>>> >> >> '(anon)' type_id=18 bits_offset=1152 >>>>> >> >> 'tstamp' type_id=20 bits_offset=1216 >>>>> >> >> 'wire_len' type_id=6 bits_offset=1280 >>>>> >> >> 'gso_segs' type_id=6 bits_offset=1312 >>>>> >> >> '(anon)' type_id=22 bits_offset=1344 >>>>> >> >> 'gso_size' type_id=6 bits_offset=1408 >>>>> >> >> 'hwtstamp' type_id=20 bits_offset=1472 >>>>> >> >> [16] ARRAY '(anon)' type_id=6 index_type_id=4 nr_elems=5 >>>>> >> >> [17] ARRAY '(anon)' type_id=6 index_type_id=4 nr_elems=4 >>>>> >> >> [18] UNION '(anon)' size=8 vlen=1 >>>>> >> >> 'flow_keys' type_id=19 bits_offset=0 >>>>> >> >> [19] PTR '(anon)' type_id=34 >>>>> >> >> [20] TYPEDEF '__u64' type_id=21 >>>>> >> >> [21] INT 'unsigned long long' size=8 bits_offset=0 nr_bits=64 encoding=(none) >>>>> >> >> [22] UNION '(anon)' size=8 vlen=1 >>>>> >> >> 'sk' type_id=23 bits_offset=0 >>>>> >> >> [23] PTR '(anon)' type_id=35 >>>>> >> >> [24] FUNC_PROTO '(anon)' ret_type_id=2 vlen=1 >>>>> >> >> 'sk' type_id=13 >>>>> >> >> [25] FUNC 'sd_restrictif_e' type_id=24 linkage=global >>>>> >> >> [26] FUNC 'sd_restrictif_i' type_id=24 linkage=global >>>>> >> >> [27] CONST '(anon)' type_id=28 >>>>> >> >> [28] VOLATILE '(anon)' type_id=9 >>>>> >> >> [29] VAR 'is_allow_list' type_id=27, linkage=global >>>>> >> >> [30] CONST '(anon)' type_id=31 >>>>> >> >> [31] INT 'char' size=1 bits_offset=0 nr_bits=8 encoding=SIGNED >>>>> >> >> [32] ARRAY '(anon)' type_id=30 index_type_id=4 nr_elems=18 >>>>> >> >> [33] VAR '_license' type_id=32, linkage=static >>>>> >> >> [34] FWD 'bpf_flow_keys' fwd_kind=struct >>>>> >> >> [35] FWD 'bpf_sock' fwd_kind=struct >>>>> >> >> [36] DATASEC '.rodata' size=1 vlen=1 >>>>> >> >> type_id=29 offset=0 size=1 (VAR 'is_allow_list') >>>>> >> >> [37] DATASEC 'license' size=18 vlen=1 >>>>> >> >> type_id=33 offset=0 size=18 (VAR '_license') >>>>> >> >> [38] DATASEC '.maps' size=24 vlen=1 >>>>> >> >> type_id=12 offset=0 size=24 (VAR 'sd_restrictif') >>>>> >> >> >>>>> >> > >>>>> >> > Skeleton generation debug output for GCC(failing) and LLVM(working) >>>>> >> > which may be helpful: >>>>> >> >>>>> >> Indeed it was helpful :) >>>>> >> >>>>> >> The GNU assembler generates an empty .bss section. This is a well >>>>> >> established behavior in GAS that happens in all supported targets. >>>>> >> >>>>> >> The LLVM assembler doesn't generate an empty .bss section. >>>>> >> >>>>> >> bpftool chokes on the empty .bss section. >>>>> >> >>>>> >> In this case I would suggest to fix bpf_object__init_global_data_maps in >>>>> >> order to skip empty sections. >>>>> >> >>>>> >> Something like this: >>>>> > >>>>> > Hmm, that seems to segfault: >>>>> >>>>> Yes, I see in bpf_object__elf_collect that sec_desc->data is not >>>>> initialized when a section is not recognized. In this case, this >>>>> happens with .comment. >>>>> >>>>> All right then: >>>>> >>>>> diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c >>>>> index e89cc9c885b3..887b78780099 100644 >>>>> --- a/tools/lib/bpf/libbpf.c >>>>> +++ b/tools/lib/bpf/libbpf.c >>>>> @@ -1591,6 +1591,10 @@ static int bpf_object__init_global_data_maps(struct bpf_object *obj) >>>>> for (sec_idx = 1; sec_idx < obj->efile.sec_cnt; sec_idx++) { >>>>> sec_desc = &obj->efile.secs[sec_idx]; >>>>> >>>>> + /* Skip recognized sections with size 0. */ >>>>> + if (sec_desc->data && sec_desc->data->d_size == 0) >>>>> + continue; >>>>> + >>>>> switch (sec_desc->sec_type) { >>>>> case SEC_DATA: >>>>> sec_name = elf_sec_name(obj, elf_sec_by_idx(obj, sec_idx)); >>>> >>>> Ok, skeleton is now getting generated successfully, however it differs from the >>>> clang version so there's a build error when we include/use the header: >>>> ../src/core/restrict-ifaces.c: In function ‘prepare_restrict_ifaces_bpf’: >>>> ../src/core/restrict-ifaces.c:45:14: error: ‘struct >>>> restrict_ifaces_bpf’ has no member named ‘rodata’; did you mean >>>> ‘data’? >>>> 45 | obj->rodata->is_allow_list = is_allow_list; >>>> | ^~~~~~ >>>> | data >>>> >>>> The issue appears to be that clang generates "rodata" members in >>>> restrict_ifaces_bpf while with gcc we get "data" members instead. >>> >>> This is because the BPF GCC port is putting the >>> >>> const volatile unsigned char is_allow_list = 0; >>> >>> in a .data section instead of .rodata, due to the `volatile'. The >>> x86_64 GCC seems to use .rodata. >>> >>> Looking at why the PBF port does this... >> >> So, turns out GCC puts zero-initialized `const volatile' variables in >> .data sections (and not .rodata) in all the targets I have tried, like >> x86_64 and aarch64. >> >> So this is a LLVM and GCC divergence :/ > > See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=25521. > > You may try, as a workaround: > > __attribute__((section(".rodata"))) const volatile unsigned char is_allow_list = 0; > > But that will use permissions "aw" for the .rodata section (and you will > get a warning from the assembler.) It may be problematic for libbpf. See also https://github.com/llvm/llvm-project/issues/56468 >>>> Differences below: >>>> >>>> GCC: >>>> $ /home/buildroot/buildroot/output/per-package/systemd/host/sbin/bpftool >>>> --debug gen skeleton >>>> output/build/systemd-custom/build/src/core/bpf/restrict_ifaces/restrict-ifaces.bpf.o >>>> libbpf: loading object 'restrict_ifaces_bpf' from buffer >>>> libbpf: elf: section(2) .symtab, size 336, link 1, flags 0, type=2 >>>> libbpf: elf: section(3) .data, size 1, link 0, flags 3, type=1 >>>> libbpf: elf: section(4) .bss, size 0, link 0, flags 3, type=8 >>>> libbpf: elf: section(5) cgroup_skb/egress, size 184, link 0, flags 6, type=1 >>>> libbpf: sec 'cgroup_skb/egress': found program 'sd_restrictif_e' at >>>> insn offset 0 (0 bytes), code size 23 insns (184 bytes) >>>> libbpf: elf: section(6) cgroup_skb/ingress, size 184, link 0, flags 6, type=1 >>>> libbpf: sec 'cgroup_skb/ingress': found program 'sd_restrictif_i' at >>>> insn offset 0 (0 bytes), code size 23 insns (184 bytes) >>>> libbpf: elf: section(7) license, size 18, link 0, flags 2, type=1 >>>> libbpf: license of restrict_ifaces_bpf is LGPL-2.1-or-later >>>> libbpf: elf: section(8) .maps, size 24, link 0, flags 3, type=1 >>>> libbpf: elf: section(9) .comment, size 49, link 0, flags 30, type=1 >>>> libbpf: elf: skipping unrecognized data section(9) .comment >>>> libbpf: elf: section(10) .relcgroup_skb/egress, size 32, link 2, flags >>>> 40, type=9 >>>> libbpf: elf: section(11) .relcgroup_skb/ingress, size 32, link 2, >>>> flags 40, type=9 >>>> libbpf: elf: section(12) .BTF, size 3606, link 0, flags 0, type=1 >>>> libbpf: looking for externs among 14 symbols... >>>> libbpf: collected 0 externs total >>>> libbpf: map 'sd_restrictif': at sec_idx 8, offset 0. >>>> libbpf: map 'sd_restrictif': found type = 1. >>>> libbpf: map 'sd_restrictif': found key [12], sz = 4. >>>> libbpf: map 'sd_restrictif': found value [3], sz = 1. >>>> libbpf: map 'restrict.data' (global data): at sec_idx 3, offset 0, flags 400. >>>> libbpf: map 1 is "restrict.data" >>>> libbpf: sec '.relcgroup_skb/egress': collecting relocation for >>>> section(5) 'cgroup_skb/egress' >>>> libbpf: sec '.relcgroup_skb/egress': relo #0: insn #4 against 'sd_restrictif' >>>> libbpf: prog 'sd_restrictif_e': found map 0 (sd_restrictif, sec 8, off >>>> 0) for insn #4 >>>> libbpf: sec '.relcgroup_skb/egress': relo #1: insn #7 against 'is_allow_list' >>>> libbpf: prog 'sd_restrictif_e': found data map 1 (restrict.data, sec >>>> 3, off 0) for insn 7 >>>> libbpf: sec '.relcgroup_skb/ingress': collecting relocation for >>>> section(6) 'cgroup_skb/ingress' >>>> libbpf: sec '.relcgroup_skb/ingress': relo #0: insn #4 against 'sd_restrictif' >>>> libbpf: prog 'sd_restrictif_i': found map 0 (sd_restrictif, sec 8, off >>>> 0) for insn #4 >>>> libbpf: sec '.relcgroup_skb/ingress': relo #1: insn #7 against 'is_allow_list' >>>> libbpf: prog 'sd_restrictif_i': found data map 1 (restrict.data, sec >>>> 3, off 0) for insn 7 >>>> /* SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) */ >>>> >>>> /* THIS FILE IS AUTOGENERATED BY BPFTOOL! */ >>>> #ifndef __RESTRICT_IFACES_BPF_SKEL_H__ >>>> #define __RESTRICT_IFACES_BPF_SKEL_H__ >>>> >>>> #include <errno.h> >>>> #include <stdlib.h> >>>> #include <bpf/libbpf.h> >>>> >>>> struct restrict_ifaces_bpf { >>>> struct bpf_object_skeleton *skeleton; >>>> struct bpf_object *obj; >>>> struct { >>>> struct bpf_map *sd_restrictif; >>>> struct bpf_map *data; >>>> } maps; >>>> struct { >>>> struct bpf_program *sd_restrictif_e; >>>> struct bpf_program *sd_restrictif_i; >>>> } progs; >>>> struct { >>>> struct bpf_link *sd_restrictif_e; >>>> struct bpf_link *sd_restrictif_i; >>>> } links; >>>> struct restrict_ifaces_bpf__data { >>>> __u8 is_allow_list; >>>> } *data; >>>> >>>> #ifdef __cplusplus >>>> static inline struct restrict_ifaces_bpf *open(const struct >>>> bpf_object_open_opts *opts = nullptr); >>>> static inline struct restrict_ifaces_bpf *open_and_load(); >>>> static inline int load(struct restrict_ifaces_bpf *skel); >>>> static inline int attach(struct restrict_ifaces_bpf *skel); >>>> static inline void detach(struct restrict_ifaces_bpf *skel); >>>> static inline void destroy(struct restrict_ifaces_bpf *skel); >>>> static inline const void *elf_bytes(size_t *sz); >>>> #endif /* __cplusplus */ >>>> }; >>>> >>>> static void >>>> restrict_ifaces_bpf__destroy(struct restrict_ifaces_bpf *obj) >>>> { >>>> if (!obj) >>>> return; >>>> if (obj->skeleton) >>>> bpf_object__destroy_skeleton(obj->skeleton); >>>> free(obj); >>>> } >>>> >>>> static inline int >>>> restrict_ifaces_bpf__create_skeleton(struct restrict_ifaces_bpf *obj); >>>> >>>> static inline struct restrict_ifaces_bpf * >>>> restrict_ifaces_bpf__open_opts(const struct bpf_object_open_opts *opts) >>>> { >>>> struct restrict_ifaces_bpf *obj; >>>> int err; >>>> >>>> obj = (struct restrict_ifaces_bpf *)calloc(1, sizeof(*obj)); >>>> if (!obj) { >>>> errno = ENOMEM; >>>> return NULL; >>>> } >>>> >>>> err = restrict_ifaces_bpf__create_skeleton(obj); >>>> if (err) >>>> goto err_out; >>>> >>>> err = bpf_object__open_skeleton(obj->skeleton, opts); >>>> if (err) >>>> goto err_out; >>>> >>>> return obj; >>>> err_out: >>>> restrict_ifaces_bpf__destroy(obj); >>>> errno = -err; >>>> return NULL; >>>> } >>>> >>>> static inline struct restrict_ifaces_bpf * >>>> restrict_ifaces_bpf__open(void) >>>> { >>>> return restrict_ifaces_bpf__open_opts(NULL); >>>> } >>>> >>>> static inline int >>>> restrict_ifaces_bpf__load(struct restrict_ifaces_bpf *obj) >>>> { >>>> return bpf_object__load_skeleton(obj->skeleton); >>>> } >>>> >>>> static inline struct restrict_ifaces_bpf * >>>> restrict_ifaces_bpf__open_and_load(void) >>>> { >>>> struct restrict_ifaces_bpf *obj; >>>> int err; >>>> >>>> obj = restrict_ifaces_bpf__open(); >>>> if (!obj) >>>> return NULL; >>>> err = restrict_ifaces_bpf__load(obj); >>>> if (err) { >>>> restrict_ifaces_bpf__destroy(obj); >>>> errno = -err; >>>> return NULL; >>>> } >>>> return obj; >>>> } >>>> >>>> static inline int >>>> restrict_ifaces_bpf__attach(struct restrict_ifaces_bpf *obj) >>>> { >>>> return bpf_object__attach_skeleton(obj->skeleton); >>>> } >>>> >>>> static inline void >>>> restrict_ifaces_bpf__detach(struct restrict_ifaces_bpf *obj) >>>> { >>>> return bpf_object__detach_skeleton(obj->skeleton); >>>> } >>>> >>>> static inline const void *restrict_ifaces_bpf__elf_bytes(size_t *sz); >>>> >>>> static inline int >>>> restrict_ifaces_bpf__create_skeleton(struct restrict_ifaces_bpf *obj) >>>> { >>>> struct bpf_object_skeleton *s; >>>> int err; >>>> >>>> s = (struct bpf_object_skeleton *)calloc(1, sizeof(*s)); >>>> if (!s) { >>>> err = -ENOMEM; >>>> goto err; >>>> } >>>> >>>> s->sz = sizeof(*s); >>>> s->name = "restrict_ifaces_bpf"; >>>> s->obj = &obj->obj; >>>> >>>> /* maps */ >>>> s->map_cnt = 2; >>>> s->map_skel_sz = sizeof(*s->maps); >>>> s->maps = (struct bpf_map_skeleton *)calloc(s->map_cnt, s->map_skel_sz); >>>> if (!s->maps) { >>>> err = -ENOMEM; >>>> goto err; >>>> } >>>> >>>> s->maps[0].name = "sd_restrictif"; >>>> s->maps[0].map = &obj->maps.sd_restrictif; >>>> >>>> s->maps[1].name = "restrict.data"; >>>> s->maps[1].map = &obj->maps.data; >>>> s->maps[1].mmaped = (void **)&obj->data; >>>> >>>> /* programs */ >>>> s->prog_cnt = 2; >>>> s->prog_skel_sz = sizeof(*s->progs); >>>> s->progs = (struct bpf_prog_skeleton *)calloc(s->prog_cnt, s->prog_skel_sz); >>>> if (!s->progs) { >>>> err = -ENOMEM; >>>> goto err; >>>> } >>>> >>>> s->progs[0].name = "sd_restrictif_e"; >>>> s->progs[0].prog = &obj->progs.sd_restrictif_e; >>>> s->progs[0].link = &obj->links.sd_restrictif_e; >>>> >>>> s->progs[1].name = "sd_restrictif_i"; >>>> s->progs[1].prog = &obj->progs.sd_restrictif_i; >>>> s->progs[1].link = &obj->links.sd_restrictif_i; >>>> >>>> s->data = (void *)restrict_ifaces_bpf__elf_bytes(&s->data_sz); >>>> >>>> obj->skeleton = s; >>>> return 0; >>>> err: >>>> bpf_object__destroy_skeleton(s); >>>> return err; >>>> } >>>> >>>> static inline const void *restrict_ifaces_bpf__elf_bytes(size_t *sz) >>>> { >>>> *sz = 5616; >>>> return (const void *)"\ >>>> \x7f\x45\x4c\x46\x02\x01\x01\0\0\0\0\0\0\0\0\0\x01\0\xf7\0\x01\0\0\0\0\0\0\0\0\ >>>> \0\0\0\0\0\0\0\0\0\0\0\xb0\x12\0\0\0\0\0\0\0\0\0\0\x40\0\0\0\0\0\x40\0\x0d\0\ >>>> \x01\0\0\x2e\x73\x74\x72\x74\x61\x62\0\x2e\x73\x79\x6d\x74\x61\x62\0\x2e\x64\ >>>> \x61\x74\x61\0\x2e\x62\x73\x73\0\x63\x67\x72\x6f\x75\x70\x5f\x73\x6b\x62\x2f\ >>>> \x65\x67\x72\x65\x73\x73\0\x63\x67\x72\x6f\x75\x70\x5f\x73\x6b\x62\x2f\x69\x6e\ >>>> \x67\x72\x65\x73\x73\0\x6c\x69\x63\x65\x6e\x73\x65\0\x2e\x6d\x61\x70\x73\0\x2e\ >>>> \x63\x6f\x6d\x6d\x65\x6e\x74\0\x72\x65\x73\x74\x72\x69\x63\x74\x2d\x69\x66\x61\ >>>> \x63\x65\x73\x2e\x62\x70\x66\x2e\x63\0\x5f\x6c\x69\x63\x65\x6e\x73\x65\0\x73\ >>>> \x64\x5f\x72\x65\x73\x74\x72\x69\x63\x74\x69\x66\x5f\x65\0\x73\x64\x5f\x72\x65\ >>>> \x73\x74\x72\x69\x63\x74\x69\x66\0\x69\x73\x5f\x61\x6c\x6c\x6f\x77\x5f\x6c\x69\ >>>> \x73\x74\0\x73\x64\x5f\x72\x65\x73\x74\x72\x69\x63\x74\x69\x66\x5f\x69\0\x2e\ >>>> \x72\x65\x6c\x63\x67\x72\x6f\x75\x70\x5f\x73\x6b\x62\x2f\x65\x67\x72\x65\x73\ >>>> \x73\0\x2e\x72\x65\x6c\x63\x67\x72\x6f\x75\x70\x5f\x73\x6b\x62\x2f\x69\x6e\x67\ >>>> \x72\x65\x73\x73\0\x2e\x42\x54\x46\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\ >>>> \0\0\0\0\0\0\x58\0\0\0\x04\0\xf1\xff\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\ >>>> \x03\0\x03\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x03\0\x04\0\0\0\0\0\0\0\0\ >>>> \0\0\0\0\0\0\0\0\0\0\0\0\0\x03\0\x05\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\ >>>> \x03\0\x06\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x03\0\x07\0\0\0\0\0\0\0\0\ >>>> \0\0\0\0\0\0\0\0\0\x6e\0\0\0\x01\0\x07\0\0\0\0\0\0\0\0\0\x12\0\0\0\0\0\0\0\0\0\ >>>> \0\0\x03\0\x08\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x03\0\x09\0\0\0\0\0\0\ >>>> \0\0\0\0\0\0\0\0\0\0\0\x77\0\0\0\x12\0\x05\0\0\0\0\0\0\0\0\0\xb8\0\0\0\0\0\0\0\ >>>> \x87\0\0\0\x11\0\x08\0\0\0\0\0\0\0\0\0\x18\0\0\0\0\0\0\0\x95\0\0\0\x11\0\x03\0\ >>>> \0\0\0\0\0\0\0\0\x01\0\0\0\0\0\0\0\xa3\0\0\0\x12\0\x06\0\0\0\0\0\0\0\0\0\xb8\0\ >>>> \0\0\0\0\0\0\0\0\0\0\0\0\0\0\x61\x10\x28\0\0\0\0\0\x63\x0a\xfc\xff\0\0\0\0\xbf\ >>>> \xa2\0\0\0\0\0\0\x07\x02\0\0\xfc\xff\xff\xff\x18\x01\0\0\0\0\0\0\0\0\0\0\0\0\0\ >>>> \0\x85\0\0\0\x01\0\0\0\x18\x01\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x71\x13\0\0\0\0\0\0\ >>>> \x57\x03\0\0\xff\0\0\0\x15\x03\x05\0\0\0\0\0\xbf\x02\0\0\0\0\0\0\x87\x02\0\0\0\ >>>> \0\0\0\x4f\x20\0\0\0\0\0\0\x77\0\0\0\x3f\0\0\0\x95\0\0\0\0\0\0\0\xb7\x01\0\0\ >>>> \x01\0\0\0\x15\0\x01\0\0\0\0\0\xbf\x31\0\0\0\0\0\0\xbf\x10\0\0\0\0\0\0\x57\0\0\ >>>> \0\x01\0\0\0\x95\0\0\0\0\0\0\0\x61\x10\x28\0\0\0\0\0\x63\x0a\xfc\xff\0\0\0\0\ >>>> \xbf\xa2\0\0\0\0\0\0\x07\x02\0\0\xfc\xff\xff\xff\x18\x01\0\0\0\0\0\0\0\0\0\0\0\ >>>> \0\0\0\x85\0\0\0\x01\0\0\0\x18\x01\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x71\x13\0\0\0\0\ >>>> \0\0\x57\x03\0\0\xff\0\0\0\x15\x03\x05\0\0\0\0\0\xbf\x02\0\0\0\0\0\0\x87\x02\0\ >>>> \0\0\0\0\0\x4f\x20\0\0\0\0\0\0\x77\0\0\0\x3f\0\0\0\x95\0\0\0\0\0\0\0\xb7\x01\0\ >>>> \0\x01\0\0\0\x15\0\x01\0\0\0\0\0\xbf\x31\0\0\0\0\0\0\xbf\x10\0\0\0\0\0\0\x57\0\ >>>> \0\0\x01\0\0\0\x95\0\0\0\0\0\0\0\x4c\x47\x50\x4c\x2d\x32\x2e\x31\x2d\x6f\x72\ >>>> \x2d\x6c\x61\x74\x65\x72\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\ >>>> \0\0\0\0\0\x47\x43\x43\x3a\x20\x28\x42\x75\x69\x6c\x64\x72\x6f\x6f\x74\x20\x32\ >>>> \x30\x32\x32\x2e\x30\x35\x2d\x31\x33\x32\x2d\x67\x35\x32\x38\x62\x35\x61\x36\ >>>> \x35\x66\x36\x29\x20\x31\x32\x2e\x31\x2e\x30\0\0\0\0\0\0\0\0\x20\0\0\0\0\0\0\0\ >>>> \x01\0\0\0\x0b\0\0\0\x38\0\0\0\0\0\0\0\x01\0\0\0\x0c\0\0\0\x20\0\0\0\0\0\0\0\ >>>> \x01\0\0\0\x0b\0\0\0\x38\0\0\0\0\0\0\0\x01\0\0\0\x0c\0\0\0\x9f\xeb\x01\0\x18\0\ >>>> \0\0\0\0\0\0\x9c\x07\0\0\x9c\x07\0\0\x62\x06\0\0\x01\0\0\0\0\0\0\x01\x01\0\0\0\ >>>> \x08\0\0\x03\x0d\0\0\0\0\0\0\x01\x01\0\0\0\x08\0\0\x02\x1b\0\0\0\0\0\0\x08\x02\ >>>> \0\0\0\0\0\0\0\0\0\0\x0a\x03\0\0\0\0\0\0\0\0\0\0\x09\x04\0\0\0\x20\0\0\0\0\0\0\ >>>> \x01\x02\0\0\0\x10\0\0\x01\x2a\0\0\0\0\0\0\x01\x02\0\0\0\x10\0\0\0\x3d\0\0\0\0\ >>>> \0\0\x08\x07\0\0\0\x43\0\0\0\0\0\0\x01\x04\0\0\0\x20\0\0\x01\x47\0\0\0\0\0\0\ >>>> \x08\x09\0\0\0\x4d\0\0\0\0\0\0\x01\x04\0\0\0\x20\0\0\0\x5a\0\0\0\0\0\0\x08\x0b\ >>>> \0\0\0\x60\0\0\0\0\0\0\x01\x08\0\0\0\x40\0\0\x01\x6e\0\0\0\0\0\0\x01\x08\0\0\0\ >>>> \x40\0\0\0\x85\0\0\0\0\0\0\x08\x0e\0\0\0\x8b\0\0\0\0\0\0\x01\x08\0\0\0\x40\0\0\ >>>> \0\x9d\0\0\0\0\0\0\x01\x08\0\0\0\x40\0\0\x01\xa6\0\0\0\0\0\0\x01\x01\0\0\0\x08\ >>>> \0\0\x03\0\0\0\0\0\0\0\x0a\x12\0\0\0\xab\0\0\0\0\0\0\x08\x08\0\0\0\xb2\0\0\0\0\ >>>> \0\0\x08\x0c\0\0\0\xb9\0\0\0\x1f\0\0\x06\x04\0\0\0\xc6\0\0\0\0\0\0\0\xda\0\0\0\ >>>> \x01\0\0\0\xec\0\0\0\x02\0\0\0\xff\0\0\0\x03\0\0\0\x17\x01\0\0\x04\0\0\0\x35\ >>>> \x01\0\0\x05\0\0\0\x4e\x01\0\0\x06\0\0\0\x68\x01\0\0\x07\0\0\0\x81\x01\0\0\x08\ >>>> \0\0\0\x9b\x01\0\0\x09\0\0\0\xb1\x01\0\0\x0a\0\0\0\xce\x01\0\0\x0b\0\0\0\xe4\ >>>> \x01\0\0\x0c\0\0\0\xff\x01\0\0\x0d\0\0\0\x19\x02\0\0\x0e\0\0\0\x2d\x02\0\0\x0f\ >>>> \0\0\0\x42\x02\0\0\x10\0\0\0\x56\x02\0\0\x11\0\0\0\x6a\x02\0\0\x12\0\0\0\x80\ >>>> \x02\0\0\x13\0\0\0\x9c\x02\0\0\x14\0\0\0\xbd\x02\0\0\x15\0\0\0\xe0\x02\0\0\x16\ >>>> \0\0\0\xf3\x02\0\0\x17\0\0\0\x06\x03\0\0\x18\0\0\0\x1e\x03\0\0\x19\0\0\0\x37\ >>>> \x03\0\0\x1a\0\0\0\x4f\x03\0\0\x1b\0\0\0\x64\x03\0\0\x1c\0\0\0\x7f\x03\0\0\x1d\ >>>> \0\0\0\x99\x03\0\0\x1e\0\0\0\0\0\0\0\x01\0\0\x05\x08\0\0\0\xb3\x03\0\0\x1d\0\0\ >>>> \0\0\0\0\0\xbd\x03\0\0\x0d\0\0\x04\x38\0\0\0\xcb\x03\0\0\x08\0\0\0\0\0\0\0\xd1\ >>>> \x03\0\0\x08\0\0\0\x10\0\0\0\xd7\x03\0\0\x08\0\0\0\x20\0\0\0\xe2\x03\0\0\x03\0\ >>>> \0\0\x30\0\0\0\xea\x03\0\0\x03\0\0\0\x38\0\0\0\xf8\x03\0\0\x03\0\0\0\x40\0\0\0\ >>>> \x01\x04\0\0\x03\0\0\0\x48\0\0\0\x0a\x04\0\0\x14\0\0\0\x50\0\0\0\x12\x04\0\0\ >>>> \x14\0\0\0\x60\0\0\0\x18\x04\0\0\x14\0\0\0\x70\0\0\0\0\0\0\0\x19\0\0\0\x80\0\0\ >>>> \0\x1e\x04\0\0\x0c\0\0\0\x80\x01\0\0\x24\x04\0\0\x15\0\0\0\xa0\x01\0\0\0\0\0\0\ >>>> \x02\0\0\x05\x20\0\0\0\0\0\0\0\x1a\0\0\0\0\0\0\0\0\0\0\0\x1b\0\0\0\0\0\0\0\0\0\ >>>> \0\0\x02\0\0\x04\x08\0\0\0\x2f\x04\0\0\x15\0\0\0\0\0\0\0\x38\x04\0\0\x15\0\0\0\ >>>> \x20\0\0\0\0\0\0\0\x02\0\0\x04\x20\0\0\0\x41\x04\0\0\x1c\0\0\0\0\0\0\0\x4a\x04\ >>>> \0\0\x1c\0\0\0\x80\0\0\0\0\0\0\0\0\0\0\x03\0\0\0\0\x0c\0\0\0\x10\0\0\0\x04\0\0\ >>>> \0\0\0\0\0\0\0\0\x02\x18\0\0\0\0\0\0\0\x01\0\0\x05\x08\0\0\0\x53\x04\0\0\x20\0\ >>>> \0\0\0\0\0\0\x56\x04\0\0\x0e\0\0\x04\x50\0\0\0\x5f\x04\0\0\x0c\0\0\0\0\0\0\0\ >>>> \x6c\x04\0\0\x0c\0\0\0\x20\0\0\0\x73\x04\0\0\x0c\0\0\0\x40\0\0\0\x78\x04\0\0\ >>>> \x0c\0\0\0\x60\0\0\0\x81\x04\0\0\x0c\0\0\0\x80\0\0\0\x86\x04\0\0\x0c\0\0\0\xa0\ >>>> \0\0\0\x8f\x04\0\0\x0c\0\0\0\xc0\0\0\0\x97\x04\0\0\x1c\0\0\0\xe0\0\0\0\x9f\x04\ >>>> \0\0\x0c\0\0\0\x60\x01\0\0\xa8\x04\0\0\x14\0\0\0\x80\x01\0\0\xb1\x04\0\0\x0c\0\ >>>> \0\0\xa0\x01\0\0\xb9\x04\0\0\x1c\0\0\0\xc0\x01\0\0\xc1\x04\0\0\x0c\0\0\0\x40\ >>>> \x02\0\0\xc7\x04\0\0\x0a\0\0\0\x60\x02\0\0\0\0\0\0\0\0\0\x02\x1f\0\0\0\xd8\x04\ >>>> \0\0\x21\0\0\x04\xc0\0\0\0\xe2\x04\0\0\x0c\0\0\0\0\0\0\0\xe6\x04\0\0\x0c\0\0\0\ >>>> \x20\0\0\0\x81\x04\0\0\x0c\0\0\0\x40\0\0\0\xef\x04\0\0\x0c\0\0\0\x60\0\0\0\x78\ >>>> \x04\0\0\x0c\0\0\0\x80\0\0\0\xfd\x04\0\0\x0c\0\0\0\xa0\0\0\0\x0a\x05\0\0\x0c\0\ >>>> \0\0\xc0\0\0\0\x13\x05\0\0\x0c\0\0\0\xe0\0\0\0\x86\x04\0\0\x0c\0\0\0\0\x01\0\0\ >>>> \x1e\x05\0\0\x0c\0\0\0\x20\x01\0\0\x2e\x05\0\0\x0c\0\0\0\x40\x01\0\0\x36\x05\0\ >>>> \0\x0c\0\0\0\x60\x01\0\0\x3f\x05\0\0\x22\0\0\0\x80\x01\0\0\x42\x05\0\0\x0c\0\0\ >>>> \0\x20\x02\0\0\x47\x05\0\0\x0c\0\0\0\x40\x02\0\0\x52\x05\0\0\x0c\0\0\0\x60\x02\ >>>> \0\0\x57\x05\0\0\x0c\0\0\0\x80\x02\0\0\x60\x05\0\0\x0c\0\0\0\xa0\x02\0\0\x6c\ >>>> \x04\0\0\x0c\0\0\0\xc0\x02\0\0\x68\x05\0\0\x0c\0\0\0\xe0\x02\0\0\x73\x05\0\0\ >>>> \x0c\0\0\0\0\x03\0\0\x7d\x05\0\0\x1c\0\0\0\x20\x03\0\0\x88\x05\0\0\x1c\0\0\0\ >>>> \xa0\x03\0\0\x92\x05\0\0\x0c\0\0\0\x20\x04\0\0\x9e\x05\0\0\x0c\0\0\0\x40\x04\0\ >>>> \0\xa9\x05\0\0\x0c\0\0\0\x60\x04\0\0\0\0\0\0\x17\0\0\0\x80\x04\0\0\xb3\x05\0\0\ >>>> \x0f\0\0\0\xc0\x04\0\0\xba\x05\0\0\x0c\0\0\0\0\x05\0\0\xc3\x05\0\0\x0c\0\0\0\ >>>> \x20\x05\0\0\0\0\0\0\x1e\0\0\0\x40\x05\0\0\xcc\x05\0\0\x0c\0\0\0\x80\x05\0\0\ >>>> \xd5\x05\0\0\x0f\0\0\0\xc0\x05\0\0\0\0\0\0\0\0\0\x03\0\0\0\0\x0c\0\0\0\x10\0\0\ >>>> \0\x05\0\0\0\0\0\0\0\0\0\0\x0a\x21\0\0\0\0\0\0\0\0\0\0\x02\0\0\0\0\0\0\0\0\x03\ >>>> \0\0\x04\x18\0\0\0\x73\x04\0\0\x27\0\0\0\0\0\0\0\xde\x05\0\0\x28\0\0\0\x40\0\0\ >>>> \0\xe2\x05\0\0\x29\0\0\0\x80\0\0\0\0\0\0\0\0\0\0\x03\0\0\0\0\x09\0\0\0\x10\0\0\ >>>> \0\x01\0\0\0\0\0\0\0\0\0\0\x02\x26\0\0\0\0\0\0\0\0\0\0\x02\x0c\0\0\0\0\0\0\0\0\ >>>> \0\0\x02\x03\0\0\0\0\0\0\0\0\0\0\x03\0\0\0\0\x13\0\0\0\x10\0\0\0\x12\0\0\0\0\0\ >>>> \0\0\0\0\0\x0a\x2a\0\0\0\0\0\0\0\x02\0\0\x0d\x24\0\0\0\0\0\0\0\x24\0\0\0\0\0\0\ >>>> \0\x2e\0\0\0\0\0\0\0\0\0\0\x0a\0\0\0\0\0\0\0\0\0\0\0\x02\x2d\0\0\0\0\0\0\0\x01\ >>>> \0\0\x0d\x09\0\0\0\x53\x04\0\0\x30\0\0\0\0\0\0\0\0\0\0\x02\x23\0\0\0\xe8\x05\0\ >>>> \0\0\0\0\x0e\x2b\0\0\0\0\0\0\0\xf1\x05\0\0\0\0\0\x0e\x05\0\0\0\x01\0\0\0\xff\ >>>> \x05\0\0\0\0\0\x0e\x25\0\0\0\x01\0\0\0\x0d\x06\0\0\x01\0\0\x0c\x2f\0\0\0\x1d\ >>>> \x06\0\0\x01\0\0\x0c\x2f\0\0\0\x2d\x06\0\0\0\0\0\x0c\x2f\0\0\0\x4e\x06\0\0\x01\ >>>> \0\0\x0f\x01\0\0\0\x32\0\0\0\0\0\0\0\x01\0\0\0\x54\x06\0\0\x01\0\0\x0f\x12\0\0\ >>>> \0\x31\0\0\0\0\0\0\0\x12\0\0\0\x5c\x06\0\0\x01\0\0\x0f\x18\0\0\0\x33\0\0\0\0\0\ >>>> \0\0\x18\0\0\0\0\x73\x69\x67\x6e\x65\x64\x20\x63\x68\x61\x72\0\x75\x6e\x73\x69\ >>>> \x67\x6e\x65\x64\x20\x63\x68\x61\x72\0\x5f\x5f\x75\x38\0\x73\x68\x6f\x72\x74\ >>>> \x20\x69\x6e\x74\0\x73\x68\x6f\x72\x74\x20\x75\x6e\x73\x69\x67\x6e\x65\x64\x20\ >>>> \x69\x6e\x74\0\x5f\x5f\x75\x31\x36\0\x69\x6e\x74\0\x5f\x5f\x73\x33\x32\0\x75\ >>>> \x6e\x73\x69\x67\x6e\x65\x64\x20\x69\x6e\x74\0\x5f\x5f\x75\x33\x32\0\x6c\x6f\ >>>> \x6e\x67\x20\x6c\x6f\x6e\x67\x20\x69\x6e\x74\0\x6c\x6f\x6e\x67\x20\x6c\x6f\x6e\ >>>> \x67\x20\x75\x6e\x73\x69\x67\x6e\x65\x64\x20\x69\x6e\x74\0\x5f\x5f\x75\x36\x34\ >>>> \0\x6c\x6f\x6e\x67\x20\x75\x6e\x73\x69\x67\x6e\x65\x64\x20\x69\x6e\x74\0\x6c\ >>>> \x6f\x6e\x67\x20\x69\x6e\x74\0\x63\x68\x61\x72\0\x5f\x5f\x62\x65\x31\x36\0\x5f\ >>>> \x5f\x62\x65\x33\x32\0\x62\x70\x66\x5f\x6d\x61\x70\x5f\x74\x79\x70\x65\0\x42\ >>>> \x50\x46\x5f\x4d\x41\x50\x5f\x54\x59\x50\x45\x5f\x55\x4e\x53\x50\x45\x43\0\x42\ >>>> \x50\x46\x5f\x4d\x41\x50\x5f\x54\x59\x50\x45\x5f\x48\x41\x53\x48\0\x42\x50\x46\ >>>> \x5f\x4d\x41\x50\x5f\x54\x59\x50\x45\x5f\x41\x52\x52\x41\x59\0\x42\x50\x46\x5f\ >>>> \x4d\x41\x50\x5f\x54\x59\x50\x45\x5f\x50\x52\x4f\x47\x5f\x41\x52\x52\x41\x59\0\ >>>> \x42\x50\x46\x5f\x4d\x41\x50\x5f\x54\x59\x50\x45\x5f\x50\x45\x52\x46\x5f\x45\ >>>> \x56\x45\x4e\x54\x5f\x41\x52\x52\x41\x59\0\x42\x50\x46\x5f\x4d\x41\x50\x5f\x54\ >>>> \x59\x50\x45\x5f\x50\x45\x52\x43\x50\x55\x5f\x48\x41\x53\x48\0\x42\x50\x46\x5f\ >>>> \x4d\x41\x50\x5f\x54\x59\x50\x45\x5f\x50\x45\x52\x43\x50\x55\x5f\x41\x52\x52\ >>>> \x41\x59\0\x42\x50\x46\x5f\x4d\x41\x50\x5f\x54\x59\x50\x45\x5f\x53\x54\x41\x43\ >>>> \x4b\x5f\x54\x52\x41\x43\x45\0\x42\x50\x46\x5f\x4d\x41\x50\x5f\x54\x59\x50\x45\ >>>> \x5f\x43\x47\x52\x4f\x55\x50\x5f\x41\x52\x52\x41\x59\0\x42\x50\x46\x5f\x4d\x41\ >>>> \x50\x5f\x54\x59\x50\x45\x5f\x4c\x52\x55\x5f\x48\x41\x53\x48\0\x42\x50\x46\x5f\ >>>> \x4d\x41\x50\x5f\x54\x59\x50\x45\x5f\x4c\x52\x55\x5f\x50\x45\x52\x43\x50\x55\ >>>> \x5f\x48\x41\x53\x48\0\x42\x50\x46\x5f\x4d\x41\x50\x5f\x54\x59\x50\x45\x5f\x4c\ >>>> \x50\x4d\x5f\x54\x52\x49\x45\0\x42\x50\x46\x5f\x4d\x41\x50\x5f\x54\x59\x50\x45\ >>>> \x5f\x41\x52\x52\x41\x59\x5f\x4f\x46\x5f\x4d\x41\x50\x53\0\x42\x50\x46\x5f\x4d\ >>>> \x41\x50\x5f\x54\x59\x50\x45\x5f\x48\x41\x53\x48\x5f\x4f\x46\x5f\x4d\x41\x50\ >>>> \x53\0\x42\x50\x46\x5f\x4d\x41\x50\x5f\x54\x59\x50\x45\x5f\x44\x45\x56\x4d\x41\ >>>> \x50\0\x42\x50\x46\x5f\x4d\x41\x50\x5f\x54\x59\x50\x45\x5f\x53\x4f\x43\x4b\x4d\ >>>> \x41\x50\0\x42\x50\x46\x5f\x4d\x41\x50\x5f\x54\x59\x50\x45\x5f\x43\x50\x55\x4d\ >>>> \x41\x50\0\x42\x50\x46\x5f\x4d\x41\x50\x5f\x54\x59\x50\x45\x5f\x58\x53\x4b\x4d\ >>>> \x41\x50\0\x42\x50\x46\x5f\x4d\x41\x50\x5f\x54\x59\x50\x45\x5f\x53\x4f\x43\x4b\ >>>> \x48\x41\x53\x48\0\x42\x50\x46\x5f\x4d\x41\x50\x5f\x54\x59\x50\x45\x5f\x43\x47\ >>>> \x52\x4f\x55\x50\x5f\x53\x54\x4f\x52\x41\x47\x45\0\x42\x50\x46\x5f\x4d\x41\x50\ >>>> \x5f\x54\x59\x50\x45\x5f\x52\x45\x55\x53\x45\x50\x4f\x52\x54\x5f\x53\x4f\x43\ >>>> \x4b\x41\x52\x52\x41\x59\0\x42\x50\x46\x5f\x4d\x41\x50\x5f\x54\x59\x50\x45\x5f\ >>>> \x50\x45\x52\x43\x50\x55\x5f\x43\x47\x52\x4f\x55\x50\x5f\x53\x54\x4f\x52\x41\ >>>> \x47\x45\0\x42\x50\x46\x5f\x4d\x41\x50\x5f\x54\x59\x50\x45\x5f\x51\x55\x45\x55\ >>>> \x45\0\x42\x50\x46\x5f\x4d\x41\x50\x5f\x54\x59\x50\x45\x5f\x53\x54\x41\x43\x4b\ >>>> \0\x42\x50\x46\x5f\x4d\x41\x50\x5f\x54\x59\x50\x45\x5f\x53\x4b\x5f\x53\x54\x4f\ >>>> \x52\x41\x47\x45\0\x42\x50\x46\x5f\x4d\x41\x50\x5f\x54\x59\x50\x45\x5f\x44\x45\ >>>> \x56\x4d\x41\x50\x5f\x48\x41\x53\x48\0\x42\x50\x46\x5f\x4d\x41\x50\x5f\x54\x59\ >>>> \x50\x45\x5f\x53\x54\x52\x55\x43\x54\x5f\x4f\x50\x53\0\x42\x50\x46\x5f\x4d\x41\ >>>> \x50\x5f\x54\x59\x50\x45\x5f\x52\x49\x4e\x47\x42\x55\x46\0\x42\x50\x46\x5f\x4d\ >>>> \x41\x50\x5f\x54\x59\x50\x45\x5f\x49\x4e\x4f\x44\x45\x5f\x53\x54\x4f\x52\x41\ >>>> \x47\x45\0\x42\x50\x46\x5f\x4d\x41\x50\x5f\x54\x59\x50\x45\x5f\x54\x41\x53\x4b\ >>>> \x5f\x53\x54\x4f\x52\x41\x47\x45\0\x42\x50\x46\x5f\x4d\x41\x50\x5f\x54\x59\x50\ >>>> \x45\x5f\x42\x4c\x4f\x4f\x4d\x5f\x46\x49\x4c\x54\x45\x52\0\x66\x6c\x6f\x77\x5f\ >>>> \x6b\x65\x79\x73\0\x62\x70\x66\x5f\x66\x6c\x6f\x77\x5f\x6b\x65\x79\x73\0\x6e\ >>>> \x68\x6f\x66\x66\0\x74\x68\x6f\x66\x66\0\x61\x64\x64\x72\x5f\x70\x72\x6f\x74\ >>>> \x6f\0\x69\x73\x5f\x66\x72\x61\x67\0\x69\x73\x5f\x66\x69\x72\x73\x74\x5f\x66\ >>>> \x72\x61\x67\0\x69\x73\x5f\x65\x6e\x63\x61\x70\0\x69\x70\x5f\x70\x72\x6f\x74\ >>>> \x6f\0\x6e\x5f\x70\x72\x6f\x74\x6f\0\x73\x70\x6f\x72\x74\0\x64\x70\x6f\x72\x74\ >>>> \0\x66\x6c\x61\x67\x73\0\x66\x6c\x6f\x77\x5f\x6c\x61\x62\x65\x6c\0\x69\x70\x76\ >>>> \x34\x5f\x73\x72\x63\0\x69\x70\x76\x34\x5f\x64\x73\x74\0\x69\x70\x76\x36\x5f\ >>>> \x73\x72\x63\0\x69\x70\x76\x36\x5f\x64\x73\x74\0\x73\x6b\0\x62\x70\x66\x5f\x73\ >>>> \x6f\x63\x6b\0\x62\x6f\x75\x6e\x64\x5f\x64\x65\x76\x5f\x69\x66\0\x66\x61\x6d\ >>>> \x69\x6c\x79\0\x74\x79\x70\x65\0\x70\x72\x6f\x74\x6f\x63\x6f\x6c\0\x6d\x61\x72\ >>>> \x6b\0\x70\x72\x69\x6f\x72\x69\x74\x79\0\x73\x72\x63\x5f\x69\x70\x34\0\x73\x72\ >>>> \x63\x5f\x69\x70\x36\0\x73\x72\x63\x5f\x70\x6f\x72\x74\0\x64\x73\x74\x5f\x70\ >>>> \x6f\x72\x74\0\x64\x73\x74\x5f\x69\x70\x34\0\x64\x73\x74\x5f\x69\x70\x36\0\x73\ >>>> \x74\x61\x74\x65\0\x72\x78\x5f\x71\x75\x65\x75\x65\x5f\x6d\x61\x70\x70\x69\x6e\ >>>> \x67\0\x5f\x5f\x73\x6b\x5f\x62\x75\x66\x66\0\x6c\x65\x6e\0\x70\x6b\x74\x5f\x74\ >>>> \x79\x70\x65\0\x71\x75\x65\x75\x65\x5f\x6d\x61\x70\x70\x69\x6e\x67\0\x76\x6c\ >>>> \x61\x6e\x5f\x70\x72\x65\x73\x65\x6e\x74\0\x76\x6c\x61\x6e\x5f\x74\x63\x69\0\ >>>> \x76\x6c\x61\x6e\x5f\x70\x72\x6f\x74\x6f\0\x69\x6e\x67\x72\x65\x73\x73\x5f\x69\ >>>> \x66\x69\x6e\x64\x65\x78\0\x69\x66\x69\x6e\x64\x65\x78\0\x74\x63\x5f\x69\x6e\ >>>> \x64\x65\x78\0\x63\x62\0\x68\x61\x73\x68\0\x74\x63\x5f\x63\x6c\x61\x73\x73\x69\ >>>> \x64\0\x64\x61\x74\x61\0\x64\x61\x74\x61\x5f\x65\x6e\x64\0\x6e\x61\x70\x69\x5f\ >>>> \x69\x64\0\x72\x65\x6d\x6f\x74\x65\x5f\x69\x70\x34\0\x6c\x6f\x63\x61\x6c\x5f\ >>>> \x69\x70\x34\0\x72\x65\x6d\x6f\x74\x65\x5f\x69\x70\x36\0\x6c\x6f\x63\x61\x6c\ >>>> \x5f\x69\x70\x36\0\x72\x65\x6d\x6f\x74\x65\x5f\x70\x6f\x72\x74\0\x6c\x6f\x63\ >>>> \x61\x6c\x5f\x70\x6f\x72\x74\0\x64\x61\x74\x61\x5f\x6d\x65\x74\x61\0\x74\x73\ >>>> \x74\x61\x6d\x70\0\x77\x69\x72\x65\x5f\x6c\x65\x6e\0\x67\x73\x6f\x5f\x73\x65\ >>>> \x67\x73\0\x67\x73\x6f\x5f\x73\x69\x7a\x65\0\x68\x77\x74\x73\x74\x61\x6d\x70\0\ >>>> \x6b\x65\x79\0\x76\x61\x6c\x75\x65\0\x5f\x6c\x69\x63\x65\x6e\x73\x65\0\x69\x73\ >>>> \x5f\x61\x6c\x6c\x6f\x77\x5f\x6c\x69\x73\x74\0\x73\x64\x5f\x72\x65\x73\x74\x72\ >>>> \x69\x63\x74\x69\x66\0\x73\x64\x5f\x72\x65\x73\x74\x72\x69\x63\x74\x69\x66\x5f\ >>>> \x69\0\x73\x64\x5f\x72\x65\x73\x74\x72\x69\x63\x74\x69\x66\x5f\x65\0\x72\x65\ >>>> \x73\x74\x72\x69\x63\x74\x5f\x6e\x65\x74\x77\x6f\x72\x6b\x5f\x69\x6e\x74\x65\ >>>> \x72\x66\x61\x63\x65\x73\x5f\x69\x6d\x70\x6c\0\x2e\x64\x61\x74\x61\0\x6c\x69\ >>>> \x63\x65\x6e\x73\x65\0\x2e\x6d\x61\x70\x73\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\ >>>> \0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\ >>>> \0\0\0\0\0\0\0\0\0\0\x01\0\0\0\x03\0\0\0\x20\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x40\ >>>> \0\0\0\0\0\0\0\xe5\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x01\0\0\0\0\0\0\0\0\0\0\0\0\0\ >>>> \0\0\x09\0\0\0\x02\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x28\x01\0\0\0\0\0\0\ >>>> \x50\x01\0\0\0\0\0\0\x01\0\0\0\0\0\0\0\x08\0\0\0\0\0\0\0\x18\0\0\0\0\0\0\0\x11\ >>>> \0\0\0\x01\0\0\0\x03\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x78\x02\0\0\0\0\0\0\x01\0\0\ >>>> \0\0\0\0\0\0\0\0\0\0\0\0\0\x01\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x17\0\0\0\x08\0\0\ >>>> \0\x03\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x79\x02\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\ >>>> \0\0\0\0\0\x01\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x1c\0\0\0\x01\0\0\0\x06\0\0\0\0\0\ >>>> \0\0\0\0\0\0\0\0\0\0\x80\x02\0\0\0\0\0\0\xb8\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x08\ >>>> \0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x2e\0\0\0\x01\0\0\0\x06\0\0\0\0\0\0\0\0\0\0\0\0\ >>>> \0\0\0\x38\x03\0\0\0\0\0\0\xb8\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x08\0\0\0\0\0\0\0\ >>>> \0\0\0\0\0\0\0\0\x41\0\0\0\x01\0\0\0\x02\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\xf0\x03\ >>>> \0\0\0\0\0\0\x12\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x01\0\0\0\0\0\0\0\0\0\0\0\0\0\0\ >>>> \0\x49\0\0\0\x01\0\0\0\x03\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x08\x04\0\0\0\0\0\0\ >>>> \x18\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x08\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x4f\0\0\0\ >>>> \x01\0\0\0\x30\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x20\x04\0\0\0\0\0\0\x31\0\0\0\0\0\ >>>> \0\0\0\0\0\0\0\0\0\0\x01\0\0\0\0\0\0\0\x01\0\0\0\0\0\0\0\xb3\0\0\0\x09\0\0\0\ >>>> \x40\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x58\x04\0\0\0\0\0\0\x20\0\0\0\0\0\0\0\x02\0\ >>>> \0\0\x05\0\0\0\x08\0\0\0\0\0\0\0\x10\0\0\0\0\0\0\0\xc9\0\0\0\x09\0\0\0\x40\0\0\ >>>> \0\0\0\0\0\0\0\0\0\0\0\0\0\x78\x04\0\0\0\0\0\0\x20\0\0\0\0\0\0\0\x02\0\0\0\x06\ >>>> \0\0\0\x08\0\0\0\0\0\0\0\x10\0\0\0\0\0\0\0\xe0\0\0\0\x01\0\0\0\0\0\0\0\0\0\0\0\ >>>> \0\0\0\0\0\0\0\0\x98\x04\0\0\0\0\0\0\x16\x0e\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x08\0\ >>>> \0\0\0\0\0\0\0\0\0\0\0\0\0\0"; >>>> } >>>> >>>> #ifdef __cplusplus >>>> struct restrict_ifaces_bpf *restrict_ifaces_bpf::open(const struct >>>> bpf_object_open_opts *opts) { return >>>> restrict_ifaces_bpf__open_opts(opts); } >>>> struct restrict_ifaces_bpf *restrict_ifaces_bpf::open_and_load() { >>>> return restrict_ifaces_bpf__open_and_load(); } >>>> int restrict_ifaces_bpf::load(struct restrict_ifaces_bpf *skel) { >>>> return restrict_ifaces_bpf__load(skel); } >>>> int restrict_ifaces_bpf::attach(struct restrict_ifaces_bpf *skel) { >>>> return restrict_ifaces_bpf__attach(skel); } >>>> void restrict_ifaces_bpf::detach(struct restrict_ifaces_bpf *skel) { >>>> restrict_ifaces_bpf__detach(skel); } >>>> void restrict_ifaces_bpf::destroy(struct restrict_ifaces_bpf *skel) { >>>> restrict_ifaces_bpf__destroy(skel); } >>>> const void *restrict_ifaces_bpf::elf_bytes(size_t *sz) { return >>>> restrict_ifaces_bpf__elf_bytes(sz); } >>>> #endif /* __cplusplus */ >>>> >>>> __attribute__((unused)) static void >>>> restrict_ifaces_bpf__assert(struct restrict_ifaces_bpf *s >>>> __attribute__((unused))) >>>> { >>>> #ifdef __cplusplus >>>> #define _Static_assert static_assert >>>> #endif >>>> _Static_assert(sizeof(s->data->is_allow_list) == 1, "unexpected >>>> size of 'is_allow_list'"); >>>> #ifdef __cplusplus >>>> #undef _Static_assert >>>> #endif >>>> } >>>> >>>> #endif /* __RESTRICT_IFACES_BPF_SKEL_H__ */ >>>> >>>> Clang: >>>> $ /home/buildroot/buildroot/output/per-package/systemd/host/sbin/bpftool >>>> --debug gen skeleton restrict-ifaces.bpf.o >>>> libbpf: loading object 'restrict_ifaces_bpf' from buffer >>>> libbpf: elf: section(2) .symtab, size 384, link 1, flags 0, type=2 >>>> libbpf: elf: section(3) cgroup_skb/egress, size 152, link 0, flags 6, type=1 >>>> libbpf: sec 'cgroup_skb/egress': found program 'sd_restrictif_e' at >>>> insn offset 0 (0 bytes), code size 19 insns (152 bytes) >>>> libbpf: elf: section(4) cgroup_skb/ingress, size 152, link 0, flags 6, type=1 >>>> libbpf: sec 'cgroup_skb/ingress': found program 'sd_restrictif_i' at >>>> insn offset 0 (0 bytes), code size 19 insns (152 bytes) >>>> libbpf: elf: section(5) .rodata, size 1, link 0, flags 2, type=1 >>>> libbpf: elf: section(6) license, size 18, link 0, flags 2, type=1 >>>> libbpf: license of restrict_ifaces_bpf is LGPL-2.1-or-later >>>> libbpf: elf: section(7) .maps, size 24, link 0, flags 3, type=1 >>>> libbpf: elf: section(8) .relcgroup_skb/egress, size 32, link 2, flags 40, type=9 >>>> libbpf: elf: section(9) .relcgroup_skb/ingress, size 32, link 2, flags >>>> 40, type=9 >>>> libbpf: elf: section(10) .BTF, size 1988, link 0, flags 0, type=1 >>>> libbpf: elf: section(11) .BTF.ext, size 376, link 0, flags 0, type=1 >>>> libbpf: looking for externs among 16 symbols... >>>> libbpf: collected 0 externs total >>>> libbpf: map 'sd_restrictif': at sec_idx 7, offset 0. >>>> libbpf: map 'sd_restrictif': found type = 1. >>>> libbpf: map 'sd_restrictif': found key [6], sz = 4. >>>> libbpf: map 'sd_restrictif': found value [9], sz = 1. >>>> libbpf: map 'restrict.rodata' (global data): at sec_idx 5, offset 0, flags 480. >>>> libbpf: map 1 is "restrict.rodata" >>>> libbpf: sec '.relcgroup_skb/egress': collecting relocation for >>>> section(3) 'cgroup_skb/egress' >>>> libbpf: sec '.relcgroup_skb/egress': relo #0: insn #4 against 'sd_restrictif' >>>> libbpf: prog 'sd_restrictif_e': found map 0 (sd_restrictif, sec 7, off >>>> 0) for insn #4 >>>> libbpf: sec '.relcgroup_skb/egress': relo #1: insn #7 against 'is_allow_list' >>>> libbpf: prog 'sd_restrictif_e': found data map 1 (restrict.rodata, sec >>>> 5, off 0) for insn 7 >>>> libbpf: sec '.relcgroup_skb/ingress': collecting relocation for >>>> section(4) 'cgroup_skb/ingress' >>>> libbpf: sec '.relcgroup_skb/ingress': relo #0: insn #4 against 'sd_restrictif' >>>> libbpf: prog 'sd_restrictif_i': found map 0 (sd_restrictif, sec 7, off >>>> 0) for insn #4 >>>> libbpf: sec '.relcgroup_skb/ingress': relo #1: insn #7 against 'is_allow_list' >>>> libbpf: prog 'sd_restrictif_i': found data map 1 (restrict.rodata, sec >>>> 5, off 0) for insn 7 >>>> /* SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) */ >>>> >>>> /* THIS FILE IS AUTOGENERATED BY BPFTOOL! */ >>>> #ifndef __RESTRICT_IFACES_BPF_SKEL_H__ >>>> #define __RESTRICT_IFACES_BPF_SKEL_H__ >>>> >>>> #include <errno.h> >>>> #include <stdlib.h> >>>> #include <bpf/libbpf.h> >>>> >>>> struct restrict_ifaces_bpf { >>>> struct bpf_object_skeleton *skeleton; >>>> struct bpf_object *obj; >>>> struct { >>>> struct bpf_map *sd_restrictif; >>>> struct bpf_map *rodata; >>>> } maps; >>>> struct { >>>> struct bpf_program *sd_restrictif_e; >>>> struct bpf_program *sd_restrictif_i; >>>> } progs; >>>> struct { >>>> struct bpf_link *sd_restrictif_e; >>>> struct bpf_link *sd_restrictif_i; >>>> } links; >>>> struct restrict_ifaces_bpf__rodata { >>>> __u8 is_allow_list; >>>> } *rodata; >>>> >>>> #ifdef __cplusplus >>>> static inline struct restrict_ifaces_bpf *open(const struct >>>> bpf_object_open_opts *opts = nullptr); >>>> static inline struct restrict_ifaces_bpf *open_and_load(); >>>> static inline int load(struct restrict_ifaces_bpf *skel); >>>> static inline int attach(struct restrict_ifaces_bpf *skel); >>>> static inline void detach(struct restrict_ifaces_bpf *skel); >>>> static inline void destroy(struct restrict_ifaces_bpf *skel); >>>> static inline const void *elf_bytes(size_t *sz); >>>> #endif /* __cplusplus */ >>>> }; >>>> >>>> static void >>>> restrict_ifaces_bpf__destroy(struct restrict_ifaces_bpf *obj) >>>> { >>>> if (!obj) >>>> return; >>>> if (obj->skeleton) >>>> bpf_object__destroy_skeleton(obj->skeleton); >>>> free(obj); >>>> } >>>> >>>> static inline int >>>> restrict_ifaces_bpf__create_skeleton(struct restrict_ifaces_bpf *obj); >>>> >>>> static inline struct restrict_ifaces_bpf * >>>> restrict_ifaces_bpf__open_opts(const struct bpf_object_open_opts *opts) >>>> { >>>> struct restrict_ifaces_bpf *obj; >>>> int err; >>>> >>>> obj = (struct restrict_ifaces_bpf *)calloc(1, sizeof(*obj)); >>>> if (!obj) { >>>> errno = ENOMEM; >>>> return NULL; >>>> } >>>> >>>> err = restrict_ifaces_bpf__create_skeleton(obj); >>>> if (err) >>>> goto err_out; >>>> >>>> err = bpf_object__open_skeleton(obj->skeleton, opts); >>>> if (err) >>>> goto err_out; >>>> >>>> return obj; >>>> err_out: >>>> restrict_ifaces_bpf__destroy(obj); >>>> errno = -err; >>>> return NULL; >>>> } >>>> >>>> static inline struct restrict_ifaces_bpf * >>>> restrict_ifaces_bpf__open(void) >>>> { >>>> return restrict_ifaces_bpf__open_opts(NULL); >>>> } >>>> >>>> static inline int >>>> restrict_ifaces_bpf__load(struct restrict_ifaces_bpf *obj) >>>> { >>>> return bpf_object__load_skeleton(obj->skeleton); >>>> } >>>> >>>> static inline struct restrict_ifaces_bpf * >>>> restrict_ifaces_bpf__open_and_load(void) >>>> { >>>> struct restrict_ifaces_bpf *obj; >>>> int err; >>>> >>>> obj = restrict_ifaces_bpf__open(); >>>> if (!obj) >>>> return NULL; >>>> err = restrict_ifaces_bpf__load(obj); >>>> if (err) { >>>> restrict_ifaces_bpf__destroy(obj); >>>> errno = -err; >>>> return NULL; >>>> } >>>> return obj; >>>> } >>>> >>>> static inline int >>>> restrict_ifaces_bpf__attach(struct restrict_ifaces_bpf *obj) >>>> { >>>> return bpf_object__attach_skeleton(obj->skeleton); >>>> } >>>> >>>> static inline void >>>> restrict_ifaces_bpf__detach(struct restrict_ifaces_bpf *obj) >>>> { >>>> return bpf_object__detach_skeleton(obj->skeleton); >>>> } >>>> >>>> static inline const void *restrict_ifaces_bpf__elf_bytes(size_t *sz); >>>> >>>> static inline int >>>> restrict_ifaces_bpf__create_skeleton(struct restrict_ifaces_bpf *obj) >>>> { >>>> struct bpf_object_skeleton *s; >>>> int err; >>>> >>>> s = (struct bpf_object_skeleton *)calloc(1, sizeof(*s)); >>>> if (!s) { >>>> err = -ENOMEM; >>>> goto err; >>>> } >>>> >>>> s->sz = sizeof(*s); >>>> s->name = "restrict_ifaces_bpf"; >>>> s->obj = &obj->obj; >>>> >>>> /* maps */ >>>> s->map_cnt = 2; >>>> s->map_skel_sz = sizeof(*s->maps); >>>> s->maps = (struct bpf_map_skeleton *)calloc(s->map_cnt, s->map_skel_sz); >>>> if (!s->maps) { >>>> err = -ENOMEM; >>>> goto err; >>>> } >>>> >>>> s->maps[0].name = "sd_restrictif"; >>>> s->maps[0].map = &obj->maps.sd_restrictif; >>>> >>>> s->maps[1].name = "restrict.rodata"; >>>> s->maps[1].map = &obj->maps.rodata; >>>> s->maps[1].mmaped = (void **)&obj->rodata; >>>> >>>> /* programs */ >>>> s->prog_cnt = 2; >>>> s->prog_skel_sz = sizeof(*s->progs); >>>> s->progs = (struct bpf_prog_skeleton *)calloc(s->prog_cnt, s->prog_skel_sz); >>>> if (!s->progs) { >>>> err = -ENOMEM; >>>> goto err; >>>> } >>>> >>>> s->progs[0].name = "sd_restrictif_e"; >>>> s->progs[0].prog = &obj->progs.sd_restrictif_e; >>>> s->progs[0].link = &obj->links.sd_restrictif_e; >>>> >>>> s->progs[1].name = "sd_restrictif_i"; >>>> s->progs[1].prog = &obj->progs.sd_restrictif_i; >>>> s->progs[1].link = &obj->links.sd_restrictif_i; >>>> >>>> s->data = (void *)restrict_ifaces_bpf__elf_bytes(&s->data_sz); >>>> >>>> obj->skeleton = s; >>>> return 0; >>>> err: >>>> bpf_object__destroy_skeleton(s); >>>> return err; >>>> } >>>> >>>> static inline const void *restrict_ifaces_bpf__elf_bytes(size_t *sz) >>>> { >>>> *sz = 4272; >>>> return (const void *)"\ >>>> \x7f\x45\x4c\x46\x02\x01\x01\0\0\0\0\0\0\0\0\0\x01\0\xf7\0\x01\0\0\0\0\0\0\0\0\ >>>> \0\0\0\0\0\0\0\0\0\0\0\xb0\x0d\0\0\0\0\0\0\0\0\0\0\x40\0\0\0\0\0\x40\0\x0c\0\ >>>> \x01\0\0\x2e\x73\x74\x72\x74\x61\x62\0\x2e\x73\x79\x6d\x74\x61\x62\0\x63\x67\ >>>> \x72\x6f\x75\x70\x5f\x73\x6b\x62\x2f\x65\x67\x72\x65\x73\x73\0\x63\x67\x72\x6f\ >>>> \x75\x70\x5f\x73\x6b\x62\x2f\x69\x6e\x67\x72\x65\x73\x73\0\x2e\x72\x6f\x64\x61\ >>>> \x74\x61\0\x6c\x69\x63\x65\x6e\x73\x65\0\x2e\x6d\x61\x70\x73\0\x72\x65\x73\x74\ >>>> \x72\x69\x63\x74\x2d\x69\x66\x61\x63\x65\x73\x2e\x62\x70\x66\x2e\x63\0\x4c\x42\ >>>> \x42\x30\x5f\x32\0\x4c\x42\x42\x30\x5f\x33\0\x4c\x42\x42\x30\x5f\x34\0\x4c\x42\ >>>> \x42\x31\x5f\x32\0\x4c\x42\x42\x31\x5f\x33\0\x4c\x42\x42\x31\x5f\x34\0\x5f\x6c\ >>>> \x69\x63\x65\x6e\x73\x65\0\x73\x64\x5f\x72\x65\x73\x74\x72\x69\x63\x74\x69\x66\ >>>> \x5f\x65\0\x73\x64\x5f\x72\x65\x73\x74\x72\x69\x63\x74\x69\x66\0\x69\x73\x5f\ >>>> \x61\x6c\x6c\x6f\x77\x5f\x6c\x69\x73\x74\0\x73\x64\x5f\x72\x65\x73\x74\x72\x69\ >>>> \x63\x74\x69\x66\x5f\x69\0\x2e\x72\x65\x6c\x63\x67\x72\x6f\x75\x70\x5f\x73\x6b\ >>>> \x62\x2f\x65\x67\x72\x65\x73\x73\0\x2e\x72\x65\x6c\x63\x67\x72\x6f\x75\x70\x5f\ >>>> \x73\x6b\x62\x2f\x69\x6e\x67\x72\x65\x73\x73\0\x2e\x42\x54\x46\0\x2e\x42\x54\ >>>> \x46\x2e\x65\x78\x74\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\ >>>> \x4c\0\0\0\x04\0\xf1\xff\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x03\0\x03\0\0\ >>>> \0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x62\0\0\0\0\0\x03\0\x70\0\0\0\0\0\0\0\0\0\0\0\0\ >>>> \0\0\0\x69\0\0\0\0\0\x03\0\x80\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x70\0\0\0\0\0\x03\ >>>> \0\x88\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x03\0\x04\0\0\0\0\0\0\0\0\0\0\0\0\ >>>> \0\0\0\0\0\x77\0\0\0\0\0\x04\0\x70\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x7e\0\0\0\0\0\ >>>> \x04\0\x80\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x85\0\0\0\0\0\x04\0\x88\0\0\0\0\0\0\0\ >>>> \0\0\0\0\0\0\0\0\x8c\0\0\0\x01\0\x06\0\0\0\0\0\0\0\0\0\x12\0\0\0\0\0\0\0\0\0\0\ >>>> \0\x03\0\x06\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x95\0\0\0\x12\0\x03\0\0\0\0\0\0\ >>>> \0\0\0\x98\0\0\0\0\0\0\0\xa5\0\0\0\x11\0\x07\0\0\0\0\0\0\0\0\0\x18\0\0\0\0\0\0\ >>>> \0\xb3\0\0\0\x11\0\x05\0\0\0\0\0\0\0\0\0\x01\0\0\0\0\0\0\0\xc1\0\0\0\x12\0\x04\ >>>> \0\0\0\0\0\0\0\0\0\x98\0\0\0\0\0\0\0\x61\x11\x28\0\0\0\0\0\x63\x1a\xfc\xff\0\0\ >>>> \0\0\xbf\xa2\0\0\0\0\0\0\x07\x02\0\0\xfc\xff\xff\xff\x18\x01\0\0\0\0\0\0\0\0\0\ >>>> \0\0\0\0\0\x85\0\0\0\x01\0\0\0\x18\x01\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x71\x11\0\0\ >>>> \0\0\0\0\x15\x01\x03\0\0\0\0\0\xb7\x01\0\0\x01\0\0\0\x15\0\x03\0\0\0\0\0\x05\0\ >>>> \x03\0\0\0\0\0\xb7\x01\0\0\x01\0\0\0\x15\0\x01\0\0\0\0\0\xb7\x01\0\0\0\0\0\0\ >>>> \xbf\x10\0\0\0\0\0\0\x95\0\0\0\0\0\0\0\x61\x11\x28\0\0\0\0\0\x63\x1a\xfc\xff\0\ >>>> \0\0\0\xbf\xa2\0\0\0\0\0\0\x07\x02\0\0\xfc\xff\xff\xff\x18\x01\0\0\0\0\0\0\0\0\ >>>> \0\0\0\0\0\0\x85\0\0\0\x01\0\0\0\x18\x01\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x71\x11\0\ >>>> \0\0\0\0\0\x15\x01\x03\0\0\0\0\0\xb7\x01\0\0\x01\0\0\0\x15\0\x03\0\0\0\0\0\x05\ >>>> \0\x03\0\0\0\0\0\xb7\x01\0\0\x01\0\0\0\x15\0\x01\0\0\0\0\0\xb7\x01\0\0\0\0\0\0\ >>>> \xbf\x10\0\0\0\0\0\0\x95\0\0\0\0\0\0\0\0\x4c\x47\x50\x4c\x2d\x32\x2e\x31\x2d\ >>>> \x6f\x72\x2d\x6c\x61\x74\x65\x72\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\ >>>> \0\0\0\0\0\0\0\x20\0\0\0\0\0\0\0\x01\0\0\0\x0d\0\0\0\x38\0\0\0\0\0\0\0\x01\0\0\ >>>> \0\x0e\0\0\0\x20\0\0\0\0\0\0\0\x01\0\0\0\x0d\0\0\0\x38\0\0\0\0\0\0\0\x01\0\0\0\ >>>> \x0e\0\0\0\x9f\xeb\x01\0\x18\0\0\0\0\0\0\0\x10\x04\0\0\x10\x04\0\0\x9c\x03\0\0\ >>>> \0\0\0\0\0\0\0\x02\x03\0\0\0\x01\0\0\0\0\0\0\x01\x04\0\0\0\x20\0\0\x01\0\0\0\0\ >>>> \0\0\0\x03\0\0\0\0\x02\0\0\0\x04\0\0\0\x01\0\0\0\x05\0\0\0\0\0\0\x01\x04\0\0\0\ >>>> \x20\0\0\0\0\0\0\0\0\0\0\x02\x06\0\0\0\x19\0\0\0\0\0\0\x08\x07\0\0\0\x1f\0\0\0\ >>>> \0\0\0\x01\x04\0\0\0\x20\0\0\0\0\0\0\0\0\0\0\x02\x09\0\0\0\x2c\0\0\0\0\0\0\x08\ >>>> \x0a\0\0\0\x31\0\0\0\0\0\0\x01\x01\0\0\0\x08\0\0\0\0\0\0\0\x03\0\0\x04\x18\0\0\ >>>> \0\x3f\0\0\0\x01\0\0\0\0\0\0\0\x44\0\0\0\x05\0\0\0\x40\0\0\0\x48\0\0\0\x08\0\0\ >>>> \0\x80\0\0\0\x4e\0\0\0\0\0\0\x0e\x0b\0\0\0\x01\0\0\0\0\0\0\0\0\0\0\x02\x0e\0\0\ >>>> \0\0\0\0\0\0\0\0\x0a\x0f\0\0\0\x5c\0\0\0\x21\0\0\x04\xc0\0\0\0\x66\0\0\0\x06\0\ >>>> \0\0\0\0\0\0\x6a\0\0\0\x06\0\0\0\x20\0\0\0\x73\0\0\0\x06\0\0\0\x40\0\0\0\x78\0\ >>>> \0\0\x06\0\0\0\x60\0\0\0\x86\0\0\0\x06\0\0\0\x80\0\0\0\x8f\0\0\0\x06\0\0\0\xa0\ >>>> \0\0\0\x9c\0\0\0\x06\0\0\0\xc0\0\0\0\xa5\0\0\0\x06\0\0\0\xe0\0\0\0\xb0\0\0\0\ >>>> \x06\0\0\0\0\x01\0\0\xb9\0\0\0\x06\0\0\0\x20\x01\0\0\xc9\0\0\0\x06\0\0\0\x40\ >>>> \x01\0\0\xd1\0\0\0\x06\0\0\0\x60\x01\0\0\xda\0\0\0\x10\0\0\0\x80\x01\0\0\xdd\0\ >>>> \0\0\x06\0\0\0\x20\x02\0\0\xe2\0\0\0\x06\0\0\0\x40\x02\0\0\xed\0\0\0\x06\0\0\0\ >>>> \x60\x02\0\0\xf2\0\0\0\x06\0\0\0\x80\x02\0\0\xfb\0\0\0\x06\0\0\0\xa0\x02\0\0\ >>>> \x03\x01\0\0\x06\0\0\0\xc0\x02\0\0\x0a\x01\0\0\x06\0\0\0\xe0\x02\0\0\x15\x01\0\ >>>> \0\x06\0\0\0\0\x03\0\0\x1f\x01\0\0\x11\0\0\0\x20\x03\0\0\x2a\x01\0\0\x11\0\0\0\ >>>> \xa0\x03\0\0\x34\x01\0\0\x06\0\0\0\x20\x04\0\0\x40\x01\0\0\x06\0\0\0\x40\x04\0\ >>>> \0\x4b\x01\0\0\x06\0\0\0\x60\x04\0\0\0\0\0\0\x12\0\0\0\x80\x04\0\0\x55\x01\0\0\ >>>> \x14\0\0\0\xc0\x04\0\0\x5c\x01\0\0\x06\0\0\0\0\x05\0\0\x65\x01\0\0\x06\0\0\0\ >>>> \x20\x05\0\0\0\0\0\0\x16\0\0\0\x40\x05\0\0\x6e\x01\0\0\x06\0\0\0\x80\x05\0\0\ >>>> \x77\x01\0\0\x14\0\0\0\xc0\x05\0\0\0\0\0\0\0\0\0\x03\0\0\0\0\x06\0\0\0\x04\0\0\ >>>> \0\x05\0\0\0\0\0\0\0\0\0\0\x03\0\0\0\0\x06\0\0\0\x04\0\0\0\x04\0\0\0\0\0\0\0\ >>>> \x01\0\0\x05\x08\0\0\0\x80\x01\0\0\x13\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x02\x22\0\0\ >>>> \0\x8a\x01\0\0\0\0\0\x08\x15\0\0\0\x90\x01\0\0\0\0\0\x01\x08\0\0\0\x40\0\0\0\0\ >>>> \0\0\0\x01\0\0\x05\x08\0\0\0\xa3\x01\0\0\x17\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x02\ >>>> \x23\0\0\0\0\0\0\0\x01\0\0\x0d\x02\0\0\0\xa3\x01\0\0\x0d\0\0\0\xa6\x01\0\0\x01\ >>>> \0\0\x0c\x18\0\0\0\xb6\x01\0\0\x01\0\0\x0c\x18\0\0\0\0\0\0\0\0\0\0\x0a\x1c\0\0\ >>>> \0\0\0\0\0\0\0\0\x09\x09\0\0\0\xc6\x01\0\0\0\0\0\x0e\x1b\0\0\0\x01\0\0\0\0\0\0\ >>>> \0\0\0\0\x0a\x1f\0\0\0\xd4\x01\0\0\0\0\0\x01\x01\0\0\0\x08\0\0\x01\0\0\0\0\0\0\ >>>> \0\x03\0\0\0\0\x1e\0\0\0\x04\0\0\0\x12\0\0\0\xd9\x01\0\0\0\0\0\x0e\x20\0\0\0\0\ >>>> \0\0\0\xe2\x01\0\0\0\0\0\x07\0\0\0\0\xf0\x01\0\0\0\0\0\x07\0\0\0\0\x61\x03\0\0\ >>>> \x01\0\0\x0f\x01\0\0\0\x1d\0\0\0\0\0\0\0\x01\0\0\0\x69\x03\0\0\x01\0\0\x0f\x12\ >>>> \0\0\0\x21\0\0\0\0\0\0\0\x12\0\0\0\x71\x03\0\0\x01\0\0\x0f\x18\0\0\0\x0c\0\0\0\ >>>> \0\0\0\0\x18\0\0\0\0\x69\x6e\x74\0\x5f\x5f\x41\x52\x52\x41\x59\x5f\x53\x49\x5a\ >>>> \x45\x5f\x54\x59\x50\x45\x5f\x5f\0\x5f\x5f\x75\x33\x32\0\x75\x6e\x73\x69\x67\ >>>> \x6e\x65\x64\x20\x69\x6e\x74\0\x5f\x5f\x75\x38\0\x75\x6e\x73\x69\x67\x6e\x65\ >>>> \x64\x20\x63\x68\x61\x72\0\x74\x79\x70\x65\0\x6b\x65\x79\0\x76\x61\x6c\x75\x65\ >>>> \0\x73\x64\x5f\x72\x65\x73\x74\x72\x69\x63\x74\x69\x66\0\x5f\x5f\x73\x6b\x5f\ >>>> \x62\x75\x66\x66\0\x6c\x65\x6e\0\x70\x6b\x74\x5f\x74\x79\x70\x65\0\x6d\x61\x72\ >>>> \x6b\0\x71\x75\x65\x75\x65\x5f\x6d\x61\x70\x70\x69\x6e\x67\0\x70\x72\x6f\x74\ >>>> \x6f\x63\x6f\x6c\0\x76\x6c\x61\x6e\x5f\x70\x72\x65\x73\x65\x6e\x74\0\x76\x6c\ >>>> \x61\x6e\x5f\x74\x63\x69\0\x76\x6c\x61\x6e\x5f\x70\x72\x6f\x74\x6f\0\x70\x72\ >>>> \x69\x6f\x72\x69\x74\x79\0\x69\x6e\x67\x72\x65\x73\x73\x5f\x69\x66\x69\x6e\x64\ >>>> \x65\x78\0\x69\x66\x69\x6e\x64\x65\x78\0\x74\x63\x5f\x69\x6e\x64\x65\x78\0\x63\ >>>> \x62\0\x68\x61\x73\x68\0\x74\x63\x5f\x63\x6c\x61\x73\x73\x69\x64\0\x64\x61\x74\ >>>> \x61\0\x64\x61\x74\x61\x5f\x65\x6e\x64\0\x6e\x61\x70\x69\x5f\x69\x64\0\x66\x61\ >>>> \x6d\x69\x6c\x79\0\x72\x65\x6d\x6f\x74\x65\x5f\x69\x70\x34\0\x6c\x6f\x63\x61\ >>>> \x6c\x5f\x69\x70\x34\0\x72\x65\x6d\x6f\x74\x65\x5f\x69\x70\x36\0\x6c\x6f\x63\ >>>> \x61\x6c\x5f\x69\x70\x36\0\x72\x65\x6d\x6f\x74\x65\x5f\x70\x6f\x72\x74\0\x6c\ >>>> \x6f\x63\x61\x6c\x5f\x70\x6f\x72\x74\0\x64\x61\x74\x61\x5f\x6d\x65\x74\x61\0\ >>>> \x74\x73\x74\x61\x6d\x70\0\x77\x69\x72\x65\x5f\x6c\x65\x6e\0\x67\x73\x6f\x5f\ >>>> \x73\x65\x67\x73\0\x67\x73\x6f\x5f\x73\x69\x7a\x65\0\x68\x77\x74\x73\x74\x61\ >>>> \x6d\x70\0\x66\x6c\x6f\x77\x5f\x6b\x65\x79\x73\0\x5f\x5f\x75\x36\x34\0\x75\x6e\ >>>> \x73\x69\x67\x6e\x65\x64\x20\x6c\x6f\x6e\x67\x20\x6c\x6f\x6e\x67\0\x73\x6b\0\ >>>> \x73\x64\x5f\x72\x65\x73\x74\x72\x69\x63\x74\x69\x66\x5f\x65\0\x73\x64\x5f\x72\ >>>> \x65\x73\x74\x72\x69\x63\x74\x69\x66\x5f\x69\0\x69\x73\x5f\x61\x6c\x6c\x6f\x77\ >>>> \x5f\x6c\x69\x73\x74\0\x63\x68\x61\x72\0\x5f\x6c\x69\x63\x65\x6e\x73\x65\0\x62\ >>>> \x70\x66\x5f\x66\x6c\x6f\x77\x5f\x6b\x65\x79\x73\0\x62\x70\x66\x5f\x73\x6f\x63\ >>>> \x6b\0\x2f\x68\x6f\x6d\x65\x2f\x62\x75\x69\x6c\x64\x72\x6f\x6f\x74\x2f\x62\x75\ >>>> \x69\x6c\x64\x72\x6f\x6f\x74\x2f\x6f\x75\x74\x70\x75\x74\x2f\x62\x75\x69\x6c\ >>>> \x64\x2f\x73\x79\x73\x74\x65\x6d\x64\x2d\x63\x75\x73\x74\x6f\x6d\x2f\x73\x72\ >>>> \x63\x2f\x63\x6f\x72\x65\x2f\x62\x70\x66\x2f\x72\x65\x73\x74\x72\x69\x63\x74\ >>>> \x5f\x69\x66\x61\x63\x65\x73\x2f\x72\x65\x73\x74\x72\x69\x63\x74\x2d\x69\x66\ >>>> \x61\x63\x65\x73\x2e\x62\x70\x66\x2e\x63\0\x20\x20\x20\x20\x20\x20\x20\x20\x69\ >>>> \x66\x69\x6e\x64\x65\x78\x20\x3d\x20\x73\x6b\x2d\x3e\x69\x66\x69\x6e\x64\x65\ >>>> \x78\x3b\0\x20\x20\x20\x20\x20\x20\x20\x20\x6c\x6f\x6f\x6b\x75\x70\x5f\x72\x65\ >>>> \x73\x75\x6c\x74\x20\x3d\x20\x62\x70\x66\x5f\x6d\x61\x70\x5f\x6c\x6f\x6f\x6b\ >>>> \x75\x70\x5f\x65\x6c\x65\x6d\x28\x26\x73\x64\x5f\x72\x65\x73\x74\x72\x69\x63\ >>>> \x74\x69\x66\x2c\x20\x26\x69\x66\x69\x6e\x64\x65\x78\x29\x3b\0\x20\x20\x20\x20\ >>>> \x20\x20\x20\x20\x69\x66\x20\x28\x69\x73\x5f\x61\x6c\x6c\x6f\x77\x5f\x6c\x69\ >>>> \x73\x74\x29\x20\x7b\0\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\ >>>> \x20\x20\x69\x66\x20\x28\x6c\x6f\x6f\x6b\x75\x70\x5f\x72\x65\x73\x75\x6c\x74\ >>>> \x29\0\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x69\x66\ >>>> \x20\x28\x21\x6c\x6f\x6f\x6b\x75\x70\x5f\x72\x65\x73\x75\x6c\x74\x29\0\x20\x20\ >>>> \x20\x20\x20\x20\x20\x20\x72\x65\x74\x75\x72\x6e\x20\x72\x65\x73\x74\x72\x69\ >>>> \x63\x74\x5f\x6e\x65\x74\x77\x6f\x72\x6b\x5f\x69\x6e\x74\x65\x72\x66\x61\x63\ >>>> \x65\x73\x5f\x69\x6d\x70\x6c\x28\x73\x6b\x29\x3b\0\x2e\x72\x6f\x64\x61\x74\x61\ >>>> \0\x6c\x69\x63\x65\x6e\x73\x65\0\x2e\x6d\x61\x70\x73\0\x63\x67\x72\x6f\x75\x70\ >>>> \x5f\x73\x6b\x62\x2f\x65\x67\x72\x65\x73\x73\0\x63\x67\x72\x6f\x75\x70\x5f\x73\ >>>> \x6b\x62\x2f\x69\x6e\x67\x72\x65\x73\x73\0\0\0\0\0\x9f\xeb\x01\0\x20\0\0\0\0\0\ >>>> \0\0\x24\0\0\0\x24\0\0\0\x34\x01\0\0\x58\x01\0\0\0\0\0\0\x08\0\0\0\x77\x03\0\0\ >>>> \x01\0\0\0\0\0\0\0\x19\0\0\0\x89\x03\0\0\x01\0\0\0\0\0\0\0\x1a\0\0\0\x10\0\0\0\ >>>> \x77\x03\0\0\x09\0\0\0\0\0\0\0\xf9\x01\0\0\x62\x02\0\0\x17\x6c\0\0\x08\0\0\0\ >>>> \xf9\x01\0\0\x62\x02\0\0\x11\x6c\0\0\x18\0\0\0\xf9\x01\0\0\0\0\0\0\0\0\0\0\x20\ >>>> \0\0\0\xf9\x01\0\0\x81\x02\0\0\x19\x70\0\0\x38\0\0\0\xf9\x01\0\0\xc8\x02\0\0\ >>>> \x0d\x74\0\0\x50\0\0\0\xf9\x01\0\0\xc8\x02\0\0\x0d\x74\0\0\x60\0\0\0\xf9\x01\0\ >>>> \0\xe5\x02\0\0\x15\x7c\0\0\x78\0\0\0\xf9\x01\0\0\x08\x03\0\0\x15\x8c\0\0\x88\0\ >>>> \0\0\xf9\x01\0\0\x2c\x03\0\0\x09\xb0\0\0\x89\x03\0\0\x09\0\0\0\0\0\0\0\xf9\x01\ >>>> \0\0\x62\x02\0\0\x17\x6c\0\0\x08\0\0\0\xf9\x01\0\0\x62\x02\0\0\x11\x6c\0\0\x18\ >>>> \0\0\0\xf9\x01\0\0\0\0\0\0\0\0\0\0\x20\0\0\0\xf9\x01\0\0\x81\x02\0\0\x19\x70\0\ >>>> \0\x38\0\0\0\xf9\x01\0\0\xc8\x02\0\0\x0d\x74\0\0\x50\0\0\0\xf9\x01\0\0\xc8\x02\ >>>> \0\0\x0d\x74\0\0\x60\0\0\0\xf9\x01\0\0\xe5\x02\0\0\x15\x7c\0\0\x78\0\0\0\xf9\ >>>> \x01\0\0\x08\x03\0\0\x15\x8c\0\0\x88\0\0\0\xf9\x01\0\0\x2c\x03\0\0\x09\xc4\0\0\ >>>> \0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\ >>>> \0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x01\0\0\0\x03\0\0\0\x20\0\0\ >>>> \0\0\0\0\0\0\0\0\0\0\0\0\0\x40\0\0\0\0\0\0\0\x0c\x01\0\0\0\0\0\0\0\0\0\0\0\0\0\ >>>> \0\x01\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x09\0\0\0\x02\0\0\0\0\0\0\0\0\0\0\0\0\0\0\ >>>> \0\0\0\0\0\x50\x01\0\0\0\0\0\0\x80\x01\0\0\0\0\0\0\x01\0\0\0\0\0\0\0\x08\0\0\0\ >>>> \0\0\0\0\x18\0\0\0\0\0\0\0\x11\0\0\0\x01\0\0\0\x06\0\0\0\0\0\0\0\0\0\0\0\0\0\0\ >>>> \0\xd0\x02\0\0\0\0\0\0\x98\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x08\0\0\0\0\0\0\0\0\0\ >>>> \0\0\0\0\0\0\x23\0\0\0\x01\0\0\0\x06\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x68\x03\0\0\ >>>> \0\0\0\0\x98\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x08\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\ >>>> \x36\0\0\0\x01\0\0\0\x02\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x04\0\0\0\0\0\0\x01\0\ >>>> \0\0\0\0\0\0\0\0\0\0\0\0\0\0\x01\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x3e\0\0\0\x01\0\ >>>> \0\0\x02\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x01\x04\0\0\0\0\0\0\x12\0\0\0\0\0\0\0\0\ >>>> \0\0\0\0\0\0\0\x01\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x46\0\0\0\x01\0\0\0\x03\0\0\0\ >>>> \0\0\0\0\0\0\0\0\0\0\0\0\x18\x04\0\0\0\0\0\0\x18\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\ >>>> \x08\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\xd1\0\0\0\x09\0\0\0\x40\0\0\0\0\0\0\0\0\0\0\ >>>> \0\0\0\0\0\x30\x04\0\0\0\0\0\0\x20\0\0\0\0\0\0\0\x02\0\0\0\x03\0\0\0\x08\0\0\0\ >>>> \0\0\0\0\x10\0\0\0\0\0\0\0\xe7\0\0\0\x09\0\0\0\x40\0\0\0\0\0\0\0\0\0\0\0\0\0\0\ >>>> \0\x50\x04\0\0\0\0\0\0\x20\0\0\0\0\0\0\0\x02\0\0\0\x04\0\0\0\x08\0\0\0\0\0\0\0\ >>>> \x10\0\0\0\0\0\0\0\xfe\0\0\0\x01\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x70\x04\ >>>> \0\0\0\0\0\0\xc4\x07\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x08\0\0\0\0\0\0\0\0\0\0\0\0\0\ >>>> \0\0\x03\x01\0\0\x01\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x38\x0c\0\0\0\0\0\0\ >>>> \x78\x01\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x08\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"; >>>> } >>>> >>>> #ifdef __cplusplus >>>> struct restrict_ifaces_bpf *restrict_ifaces_bpf::open(const struct >>>> bpf_object_open_opts *opts) { return >>>> restrict_ifaces_bpf__open_opts(opts); } >>>> struct restrict_ifaces_bpf *restrict_ifaces_bpf::open_and_load() { >>>> return restrict_ifaces_bpf__open_and_load(); } >>>> int restrict_ifaces_bpf::load(struct restrict_ifaces_bpf *skel) { >>>> return restrict_ifaces_bpf__load(skel); } >>>> int restrict_ifaces_bpf::attach(struct restrict_ifaces_bpf *skel) { >>>> return restrict_ifaces_bpf__attach(skel); } >>>> void restrict_ifaces_bpf::detach(struct restrict_ifaces_bpf *skel) { >>>> restrict_ifaces_bpf__detach(skel); } >>>> void restrict_ifaces_bpf::destroy(struct restrict_ifaces_bpf *skel) { >>>> restrict_ifaces_bpf__destroy(skel); } >>>> const void *restrict_ifaces_bpf::elf_bytes(size_t *sz) { return >>>> restrict_ifaces_bpf__elf_bytes(sz); } >>>> #endif /* __cplusplus */ >>>> >>>> __attribute__((unused)) static void >>>> restrict_ifaces_bpf__assert(struct restrict_ifaces_bpf *s >>>> __attribute__((unused))) >>>> { >>>> #ifdef __cplusplus >>>> #define _Static_assert static_assert >>>> #endif >>>> _Static_assert(sizeof(s->rodata->is_allow_list) == 1, "unexpected >>>> size of 'is_allow_list'"); >>>> #ifdef __cplusplus >>>> #undef _Static_assert >>>> #endif >>>> } >>>> >>>> #endif /* __RESTRICT_IFACES_BPF_SKEL_H__ */ >>>> >>>>> >>>>> >>>>> > Starting program: >>>>> > /home/buildroot/buildroot/output/per-package/systemd/host/sbin/bpftool >>>>> > --debug gen skeleton >>>>> > output/build/systemd-custom/build/src/core/bpf/restrict_ifaces/restrict-ifaces.bpf.o >>>>> > [Thread debugging using libthread_db enabled] >>>>> > Using host libthread_db library "/usr/lib/libthread_db.so.1". >>>>> > libbpf: loading object 'restrict_ifaces_bpf' from buffer >>>>> > libbpf: elf: section(2) .symtab, size 336, link 1, flags 0, type=2 >>>>> > libbpf: elf: section(3) .data, size 1, link 0, flags 3, type=1 >>>>> > libbpf: elf: section(4) .bss, size 0, link 0, flags 3, type=8 >>>>> > libbpf: elf: section(5) cgroup_skb/egress, size 184, link 0, flags 6, type=1 >>>>> > libbpf: sec 'cgroup_skb/egress': found program 'sd_restrictif_e' at >>>>> > insn offset 0 (0 bytes), code size 23 insns (184 bytes) >>>>> > libbpf: elf: section(6) cgroup_skb/ingress, size 184, link 0, flags 6, type=1 >>>>> > libbpf: sec 'cgroup_skb/ingress': found program 'sd_restrictif_i' at >>>>> > insn offset 0 (0 bytes), code size 23 insns (184 bytes) >>>>> > libbpf: elf: section(7) license, size 18, link 0, flags 2, type=1 >>>>> > libbpf: license of restrict_ifaces_bpf is LGPL-2.1-or-later >>>>> > libbpf: elf: section(8) .maps, size 24, link 0, flags 3, type=1 >>>>> > libbpf: elf: section(9) .comment, size 49, link 0, flags 30, type=1 >>>>> > libbpf: elf: skipping unrecognized data section(9) .comment >>>>> > libbpf: elf: section(10) .relcgroup_skb/egress, size 32, link 2, flags >>>>> > 40, type=9 >>>>> > libbpf: elf: section(11) .relcgroup_skb/ingress, size 32, link 2, >>>>> > flags 40, type=9 >>>>> > libbpf: elf: section(12) .BTF, size 3606, link 0, flags 0, type=1 >>>>> > libbpf: looking for externs among 14 symbols... >>>>> > libbpf: collected 0 externs total >>>>> > libbpf: map 'sd_restrictif': at sec_idx 8, offset 0. >>>>> > libbpf: map 'sd_restrictif': found type = 1. >>>>> > libbpf: map 'sd_restrictif': found key [12], sz = 4. >>>>> > libbpf: map 'sd_restrictif': found value [3], sz = 1. >>>>> > >>>>> > Program received signal SIGSEGV, Segmentation fault. >>>>> > 0x0000aaaaaab4fd2c in bpf_object.init_maps () >>>>> > (gdb) bt >>>>> > #0 0x0000aaaaaab4fd2c in bpf_object.init_maps () >>>>> > #1 0x0000aaaaaab52178 in bpf_object_open.part () >>>>> > #2 0x0000aaaaaab544e8 in bpf_object.open_mem () >>>>> > #3 0x0000aaaaaab2a58c in do_skeleton () >>>>> > #4 0x0000aaaaaab1e204 in main () >>>>> > >>>>> >> >>>>> >> diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c >>>>> >> index e89cc9c885b3..e3a6808f0bb6 100644 >>>>> >> --- a/tools/lib/bpf/libbpf.c >>>>> >> +++ b/tools/lib/bpf/libbpf.c >>>>> >> @@ -1591,6 +1591,10 @@ static int >>> bpf_object__init_global_data_maps(struct bpf_object *obj) >>>>> >> for (sec_idx = 1; sec_idx < obj->efile.sec_cnt; sec_idx++) { >>>>> >> sec_desc = &obj->efile.secs[sec_idx]; >>>>> >> >>>>> >> + /* Skip empty sections. */ >>>>> >> + if (sec_desc->data->d_size == 0) >>>>> >> + continue; >>>>> >> + >>>>> >> switch (sec_desc->sec_type) { >>>>> >> case SEC_DATA: >>>>> >> sec_name = elf_sec_name(obj, elf_sec_by_idx(obj, sec_idx)); >>>>> >> >>>>> >> > GCC: >>>>> >> > $ /home/buildroot/buildroot/output/per-package/systemd/host/sbin/bpftool >>>>> >> > --debug gen skeleton >>>>> >> > output/build/systemd-custom/build/src/core/bpf/restrict_ifaces/restrict-ifaces.bpf.o >>>>> >> > libbpf: loading object 'restrict_ifaces_bpf' from buffer >>>>> >> > libbpf: elf: section(2) .symtab, size 336, link 1, flags 0, type=2 >>>>> >> > libbpf: elf: section(3) .data, size 1, link 0, flags 3, type=1 >>>>> >> > libbpf: elf: section(4) .bss, size 0, link 0, flags 3, type=8 >>>>> >> > libbpf: elf: section(5) cgroup_skb/egress, size 184, link 0, flags 6, type=1 >>>>> >> > libbpf: sec 'cgroup_skb/egress': found program 'sd_restrictif_e' at >>>>> >> > insn offset 0 (0 bytes), code size 23 insns (184 bytes) >>>>> >> > libbpf: elf: section(6) cgroup_skb/ingress, size 184, link 0, flags 6, type=1 >>>>> >> > libbpf: sec 'cgroup_skb/ingress': found program 'sd_restrictif_i' at >>>>> >> > insn offset 0 (0 bytes), code size 23 insns (184 bytes) >>>>> >> > libbpf: elf: section(7) license, size 18, link 0, flags 2, type=1 >>>>> >> > libbpf: license of restrict_ifaces_bpf is LGPL-2.1-or-later >>>>> >> > libbpf: elf: section(8) .maps, size 24, link 0, flags 3, type=1 >>>>> >> > libbpf: elf: section(9) .comment, size 49, link 0, flags 30, type=1 >>>>> >> > libbpf: elf: skipping unrecognized data section(9) .comment >>>>> >> > libbpf: elf: section(10) .relcgroup_skb/egress, size 32, link 2, flags >>>>> >> > 40, type=9 >>>>> >> > libbpf: elf: section(11) .relcgroup_skb/ingress, size 32, link 2, >>>>> >> > flags 40, type=9 >>>>> >> > libbpf: elf: section(12) .BTF, size 3606, link 0, flags 0, type=1 >>>>> >> > libbpf: looking for externs among 14 symbols... >>>>> >> > libbpf: collected 0 externs total >>>>> >> > libbpf: map 'sd_restrictif': at sec_idx 8, offset 0. >>>>> >> > libbpf: map 'sd_restrictif': found type = 1. >>>>> >> > libbpf: map 'sd_restrictif': found key [12], sz = 4. >>>>> >> > libbpf: map 'sd_restrictif': found value [3], sz = 1. >>>>> >> > libbpf: map 'restrict.data' (global data): at sec_idx 3, offset 0, flags 400. >>>>> >> > libbpf: map 1 is "restrict.data" >>>>> >> > libbpf: map 'restrict.bss' (global data): at sec_idx 4, offset 0, flags 400. >>>>> >> > libbpf: failed to alloc map 'restrict.bss' content buffer: -22 >>>>> >> > Error: failed to open BPF object file: Invalid argument >>>>> >> > >>>>> >> > LLVM: >>>>> >> > $ /home/buildroot/buildroot/output/per-package/systemd/host/sbin/bpftool >>>>> >> > --debug gen skeleton restrict-ifaces.bpf.o >>>>> >> > libbpf: loading object 'restrict_ifaces_bpf' from buffer >>>>> >> > libbpf: elf: section(2) .symtab, size 384, link 1, flags 0, type=2 >>>>> >> > libbpf: elf: section(3) cgroup_skb/egress, size 152, link 0, flags 6, type=1 >>>>> >> > libbpf: sec 'cgroup_skb/egress': found program 'sd_restrictif_e' at >>>>> >> > insn offset 0 (0 bytes), code size 19 insns (152 bytes) >>>>> >> > libbpf: elf: section(4) cgroup_skb/ingress, size 152, link 0, flags 6, type=1 >>>>> >> > libbpf: sec 'cgroup_skb/ingress': found program 'sd_restrictif_i' at >>>>> >> > insn offset 0 (0 bytes), code size 19 insns (152 bytes) >>>>> >> > libbpf: elf: section(5) .rodata, size 1, link 0, flags 2, type=1 >>>>> >> > libbpf: elf: section(6) license, size 18, link 0, flags 2, type=1 >>>>> >> > libbpf: license of restrict_ifaces_bpf is LGPL-2.1-or-later >>>>> >> > libbpf: elf: section(7) .maps, size 24, link 0, flags 3, type=1 >>>>> >> > libbpf: elf: section(8) .relcgroup_skb/egress, size 32, link 2, flags 40, type=9 >>>>> >> > libbpf: elf: section(9) .relcgroup_skb/ingress, size 32, link 2, flags >>>>> >> > 40, type=9 >>>>> >> > libbpf: elf: section(10) .BTF, size 1988, link 0, flags 0, type=1 >>>>> >> > libbpf: elf: section(11) .BTF.ext, size 376, link 0, flags 0, type=1 >>>>> >> > libbpf: looking for externs among 16 symbols... >>>>> >> > libbpf: collected 0 externs total >>>>> >> > libbpf: map 'sd_restrictif': at sec_idx 7, offset 0. >>>>> >> > libbpf: map 'sd_restrictif': found type = 1. >>>>> >> > libbpf: map 'sd_restrictif': found key [6], sz = 4. >>>>> >> > libbpf: map 'sd_restrictif': found value [9], sz = 1. >>>>> >> > libbpf: map 'restrict.rodata' (global data): at sec_idx 5, offset 0, flags 480. >>>>> >> > libbpf: map 1 is "restrict.rodata" >>>>> >> > libbpf: sec '.relcgroup_skb/egress': collecting relocation for >>>>> >> > section(3) 'cgroup_skb/egress' >>>>> >> > libbpf: sec '.relcgroup_skb/egress': relo #0: insn #4 against 'sd_restrictif' >>>>> >> > libbpf: prog 'sd_restrictif_e': found map 0 (sd_restrictif, sec 7, off >>>>> >> > 0) for insn #4 >>>>> >> > libbpf: sec '.relcgroup_skb/egress': relo #1: insn #7 against 'is_allow_list' >>>>> >> > libbpf: prog 'sd_restrictif_e': found data map 1 (restrict.rodata, sec >>>>> >> > 5, off 0) for insn 7 >>>>> >> > libbpf: sec '.relcgroup_skb/ingress': collecting relocation for >>>>> >> > section(4) 'cgroup_skb/ingress' >>>>> >> > libbpf: sec '.relcgroup_skb/ingress': relo #0: insn #4 against 'sd_restrictif' >>>>> >> > libbpf: prog 'sd_restrictif_i': found map 0 (sd_restrictif, sec 7, off >>>>> >> > 0) for insn #4 >>>>> >> > libbpf: sec '.relcgroup_skb/ingress': relo #1: insn #7 against 'is_allow_list' >>>>> >> > libbpf: prog 'sd_restrictif_i': found data map 1 (restrict.rodata, sec >>>>> >> > 5, off 0) for insn 7 >>>>> >> > >>>>> >> >> > >>>>> >> >> > >> >>>>> >> >> > >> Looking at libbpf.c, it seems to me that this may be due of trying to >>>>> >> >> > >> mmap 0 bytes in `bpf_object__init_internal_map': >>>>> >> >> > >> >>>>> >> >> > >> map->mmaped = mmap(NULL, bpf_map_mmap_sz(map), PROT_READ | PROT_WRITE, >>>>> >> >> > >> MAP_SHARED | MAP_ANONYMOUS, -1, 0); >>>>> >> >> > >> if (map->mmaped == MAP_FAILED) { >>>>> >> >> > >> err = -errno; >>>>> >> >> > >> map->mmaped = NULL; >>>>> >> >> > >> pr_warn("failed to alloc map '%s' content buffer: %d\n", >>>>> >> >> > >> map->name, err); >>>>> >> >> > >> zfree(&map->real_name); >>>>> >> >> > >> zfree(&map->name); >>>>> >> >> > >> return err; >>>>> >> >> > >> } >>>>> >> >> > >> >>>>> >> >> > >> I see no check for zero sized sections in >>>>> >> >> > >> bpf_object__init_global_data_maps. >>>>> >> >> > >> >>>>> >> >> > >> Is maybe GCC failing to allocate stuff in BSS that is supposed to be >>>>> >> >> > >> there? >>>>> >> >> > >> >>>>> >> >> > >> > Stripped file passed to gen skeleton: >>>>> >> >> > >> > /home/buildroot/buildroot/output/per-package/systemd/host/sbin/bpftool >>>>> >> >> > >> > btf dump file >>>>> >> >> > >> > >>> output/build/systemd-custom/build/src/core/bpf/restrict_ifaces/restrict-ifaces.bpf.o >>>>> >> >> > >> > format raw >>>>> >> >> > >> > [1] INT 'signed char' size=1 bits_offset=0 nr_bits=8 encoding=UNKN >>>>> >> >> > >> > [2] INT 'unsigned char' size=1 bits_offset=0 nr_bits=8 encoding=CHAR >>>>> >> >> > >> > [3] TYPEDEF '__u8' type_id=2 >>>>> >> >> > >> > [4] CONST '(anon)' type_id=3 >>>>> >> >> > >> > [5] VOLATILE '(anon)' type_id=4 >>>>> >> >> > >> > [6] INT 'short int' size=2 bits_offset=0 nr_bits=16 encoding=SIGNED >>>>> >> >> > >> > [7] INT 'short unsigned int' size=2 bits_offset=0 nr_bits=16 encoding=(none) >>>>> >> >> > >> > [8] TYPEDEF '__u16' type_id=7 >>>>> >> >> > >> > [9] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED >>>>> >> >> > >> > [10] TYPEDEF '__s32' type_id=9 >>>>> >> >> > >> > [11] INT 'unsigned int' size=4 bits_offset=0 nr_bits=32 encoding=(none) >>>>> >> >> > >> > [12] TYPEDEF '__u32' type_id=11 >>>>> >> >> > >> > [13] INT 'long long int' size=8 bits_offset=0 nr_bits=64 encoding=SIGNED >>>>> >> >> > >> > [14] INT 'long long unsigned int' size=8 bits_offset=0 nr_bits=64 >>>>> >> >> > >> > encoding=(none) >>>>> >> >> > >> > [15] TYPEDEF '__u64' type_id=14 >>>>> >> >> > >> > [16] INT 'long unsigned int' size=8 bits_offset=0 nr_bits=64 encoding=(none) >>>>> >> >> > >> > [17] INT 'long int' size=8 bits_offset=0 nr_bits=64 encoding=SIGNED >>>>> >> >> > >> > [18] INT 'char' size=1 bits_offset=0 nr_bits=8 encoding=UNKN >>>>> >> >> > >> > [19] CONST '(anon)' type_id=18 >>>>> >> >> > >> > [20] TYPEDEF '__be16' type_id=8 >>>>> >> >> > >> > [21] TYPEDEF '__be32' type_id=12 >>>>> >> >> > >> > [22] ENUM 'bpf_map_type' encoding=UNSIGNED size=4 vlen=31 >>>>> >> >> > >> > 'BPF_MAP_TYPE_UNSPEC' val=0 >>>>> >> >> > >> > 'BPF_MAP_TYPE_HASH' val=1 >>>>> >> >> > >> > 'BPF_MAP_TYPE_ARRAY' val=2 >>>>> >> >> > >> > 'BPF_MAP_TYPE_PROG_ARRAY' val=3 >>>>> >> >> > >> > 'BPF_MAP_TYPE_PERF_EVENT_ARRAY' val=4 >>>>> >> >> > >> > 'BPF_MAP_TYPE_PERCPU_HASH' val=5 >>>>> >> >> > >> > 'BPF_MAP_TYPE_PERCPU_ARRAY' val=6 >>>>> >> >> > >> > 'BPF_MAP_TYPE_STACK_TRACE' val=7 >>>>> >> >> > >> > 'BPF_MAP_TYPE_CGROUP_ARRAY' val=8 >>>>> >> >> > >> > 'BPF_MAP_TYPE_LRU_HASH' val=9 >>>>> >> >> > >> > 'BPF_MAP_TYPE_LRU_PERCPU_HASH' val=10 >>>>> >> >> > >> > 'BPF_MAP_TYPE_LPM_TRIE' val=11 >>>>> >> >> > >> > 'BPF_MAP_TYPE_ARRAY_OF_MAPS' val=12 >>>>> >> >> > >> > 'BPF_MAP_TYPE_HASH_OF_MAPS' val=13 >>>>> >> >> > >> > 'BPF_MAP_TYPE_DEVMAP' val=14 >>>>> >> >> > >> > 'BPF_MAP_TYPE_SOCKMAP' val=15 >>>>> >> >> > >> > 'BPF_MAP_TYPE_CPUMAP' val=16 >>>>> >> >> > >> > 'BPF_MAP_TYPE_XSKMAP' val=17 >>>>> >> >> > >> > 'BPF_MAP_TYPE_SOCKHASH' val=18 >>>>> >> >> > >> > 'BPF_MAP_TYPE_CGROUP_STORAGE' val=19 >>>>> >> >> > >> > 'BPF_MAP_TYPE_REUSEPORT_SOCKARRAY' val=20 >>>>> >> >> > >> > 'BPF_MAP_TYPE_PERCPU_CGROUP_STORAGE' val=21 >>>>> >> >> > >> > 'BPF_MAP_TYPE_QUEUE' val=22 >>>>> >> >> > >> > 'BPF_MAP_TYPE_STACK' val=23 >>>>> >> >> > >> > 'BPF_MAP_TYPE_SK_STORAGE' val=24 >>>>> >> >> > >> > 'BPF_MAP_TYPE_DEVMAP_HASH' val=25 >>>>> >> >> > >> > 'BPF_MAP_TYPE_STRUCT_OPS' val=26 >>>>> >> >> > >> > 'BPF_MAP_TYPE_RINGBUF' val=27 >>>>> >> >> > >> > 'BPF_MAP_TYPE_INODE_STORAGE' val=28 >>>>> >> >> > >> > 'BPF_MAP_TYPE_TASK_STORAGE' val=29 >>>>> >> >> > >> > 'BPF_MAP_TYPE_BLOOM_FILTER' val=30 >>>>> >> >> > >> > [23] UNION '(anon)' size=8 vlen=1 >>>>> >> >> > >> > 'flow_keys' type_id=29 bits_offset=0 >>>>> >> >> > >> > [24] STRUCT 'bpf_flow_keys' size=56 vlen=13 >>>>> >> >> > >> > 'nhoff' type_id=8 bits_offset=0 >>>>> >> >> > >> > 'thoff' type_id=8 bits_offset=16 >>>>> >> >> > >> > 'addr_proto' type_id=8 bits_offset=32 >>>>> >> >> > >> > 'is_frag' type_id=3 bits_offset=48 >>>>> >> >> > >> > 'is_first_frag' type_id=3 bits_offset=56 >>>>> >> >> > >> > 'is_encap' type_id=3 bits_offset=64 >>>>> >> >> > >> > 'ip_proto' type_id=3 bits_offset=72 >>>>> >> >> > >> > 'n_proto' type_id=20 bits_offset=80 >>>>> >> >> > >> > 'sport' type_id=20 bits_offset=96 >>>>> >> >> > >> > 'dport' type_id=20 bits_offset=112 >>>>> >> >> > >> > '(anon)' type_id=25 bits_offset=128 >>>>> >> >> > >> > 'flags' type_id=12 bits_offset=384 >>>>> >> >> > >> > 'flow_label' type_id=21 bits_offset=416 >>>>> >> >> > >> > [25] UNION '(anon)' size=32 vlen=2 >>>>> >> >> > >> > '(anon)' type_id=26 bits_offset=0 >>>>> >> >> > >> > '(anon)' type_id=27 bits_offset=0 >>>>> >> >> > >> > [26] STRUCT '(anon)' size=8 vlen=2 >>>>> >> >> > >> > 'ipv4_src' type_id=21 bits_offset=0 >>>>> >> >> > >> > 'ipv4_dst' type_id=21 bits_offset=32 >>>>> >> >> > >> > [27] STRUCT '(anon)' size=32 vlen=2 >>>>> >> >> > >> > 'ipv6_src' type_id=28 bits_offset=0 >>>>> >> >> > >> > 'ipv6_dst' type_id=28 bits_offset=128 >>>>> >> >> > >> > [28] ARRAY '(anon)' type_id=12 index_type_id=16 nr_elems=4 >>>>> >> >> > >> > [29] PTR '(anon)' type_id=24 >>>>> >> >> > >> > [30] UNION '(anon)' size=8 vlen=1 >>>>> >> >> > >> > 'sk' type_id=32 bits_offset=0 >>>>> >> >> > >> > [31] STRUCT 'bpf_sock' size=80 vlen=14 >>>>> >> >> > >> > 'bound_dev_if' type_id=12 bits_offset=0 >>>>> >> >> > >> > 'family' type_id=12 bits_offset=32 >>>>> >> >> > >> > 'type' type_id=12 bits_offset=64 >>>>> >> >> > >> > 'protocol' type_id=12 bits_offset=96 >>>>> >> >> > >> > 'mark' type_id=12 bits_offset=128 >>>>> >> >> > >> > 'priority' type_id=12 bits_offset=160 >>>>> >> >> > >> > 'src_ip4' type_id=12 bits_offset=192 >>>>> >> >> > >> > 'src_ip6' type_id=28 bits_offset=224 >>>>> >> >> > >> > 'src_port' type_id=12 bits_offset=352 >>>>> >> >> > >> > 'dst_port' type_id=20 bits_offset=384 >>>>> >> >> > >> > 'dst_ip4' type_id=12 bits_offset=416 >>>>> >> >> > >> > 'dst_ip6' type_id=28 bits_offset=448 >>>>> >> >> > >> > 'state' type_id=12 bits_offset=576 >>>>> >> >> > >> > 'rx_queue_mapping' type_id=10 bits_offset=608 >>>>> >> >> > >> > [32] PTR '(anon)' type_id=31 >>>>> >> >> > >> > [33] STRUCT '__sk_buff' size=192 vlen=33 >>>>> >> >> > >> > 'len' type_id=12 bits_offset=0 >>>>> >> >> > >> > 'pkt_type' type_id=12 bits_offset=32 >>>>> >> >> > >> > 'mark' type_id=12 bits_offset=64 >>>>> >> >> > >> > 'queue_mapping' type_id=12 bits_offset=96 >>>>> >> >> > >> > 'protocol' type_id=12 bits_offset=128 >>>>> >> >> > >> > 'vlan_present' type_id=12 bits_offset=160 >>>>> >> >> > >> > 'vlan_tci' type_id=12 bits_offset=192 >>>>> >> >> > >> > 'vlan_proto' type_id=12 bits_offset=224 >>>>> >> >> > >> > 'priority' type_id=12 bits_offset=256 >>>>> >> >> > >> > 'ingress_ifindex' type_id=12 bits_offset=288 >>>>> >> >> > >> > 'ifindex' type_id=12 bits_offset=320 >>>>> >> >> > >> > 'tc_index' type_id=12 bits_offset=352 >>>>> >> >> > >> > 'cb' type_id=34 bits_offset=384 >>>>> >> >> > >> > 'hash' type_id=12 bits_offset=544 >>>>> >> >> > >> > 'tc_classid' type_id=12 bits_offset=576 >>>>> >> >> > >> > 'data' type_id=12 bits_offset=608 >>>>> >> >> > >> > 'data_end' type_id=12 bits_offset=640 >>>>> >> >> > >> > 'napi_id' type_id=12 bits_offset=672 >>>>> >> >> > >> > 'family' type_id=12 bits_offset=704 >>>>> >> >> > >> > 'remote_ip4' type_id=12 bits_offset=736 >>>>> >> >> > >> > 'local_ip4' type_id=12 bits_offset=768 >>>>> >> >> > >> > 'remote_ip6' type_id=28 bits_offset=800 >>>>> >> >> > >> > 'local_ip6' type_id=28 bits_offset=928 >>>>> >> >> > >> > 'remote_port' type_id=12 bits_offset=1056 >>>>> >> >> > >> > 'local_port' type_id=12 bits_offset=1088 >>>>> >> >> > >> > 'data_meta' type_id=12 bits_offset=1120 >>>>> >> >> > >> > '(anon)' type_id=23 bits_offset=1152 >>>>> >> >> > >> > 'tstamp' type_id=15 bits_offset=1216 >>>>> >> >> > >> > 'wire_len' type_id=12 bits_offset=1280 >>>>> >> >> > >> > 'gso_segs' type_id=12 bits_offset=1312 >>>>> >> >> > >> > '(anon)' type_id=30 bits_offset=1344 >>>>> >> >> > >> > 'gso_size' type_id=12 bits_offset=1408 >>>>> >> >> > >> > 'hwtstamp' type_id=15 bits_offset=1472 >>>>> >> >> > >> > [34] ARRAY '(anon)' type_id=12 index_type_id=16 nr_elems=5 >>>>> >> >> > >> > [35] CONST '(anon)' type_id=33 >>>>> >> >> > >> > [36] PTR '(anon)' type_id=0 >>>>> >> >> > >> > [37] STRUCT '(anon)' size=24 vlen=3 >>>>> >> >> > >> > 'type' type_id=39 bits_offset=0 >>>>> >> >> > >> > 'key' type_id=40 bits_offset=64 >>>>> >> >> > >> > 'value' type_id=41 bits_offset=128 >>>>> >> >> > >> > [38] ARRAY '(anon)' type_id=9 index_type_id=16 nr_elems=1 >>>>> >> >> > >> > [39] PTR '(anon)' type_id=38 >>>>> >> >> > >> > [40] PTR '(anon)' type_id=12 >>>>> >> >> > >> > [41] PTR '(anon)' type_id=3 >>>>> >> >> > >> > [42] ARRAY '(anon)' type_id=19 index_type_id=16 nr_elems=18 >>>>> >> >> > >> > [43] CONST '(anon)' type_id=42 >>>>> >> >> > >> > [44] FUNC_PROTO '(anon)' ret_type_id=36 vlen=2 >>>>> >> >> > >> > '(anon)' type_id=36 >>>>> >> >> > >> > '(anon)' type_id=46 >>>>> >> >> > >> > [45] CONST '(anon)' type_id=0 >>>>> >> >> > >> > [46] PTR '(anon)' type_id=45 >>>>> >> >> > >> > [47] FUNC_PROTO '(anon)' ret_type_id=9 vlen=1 >>>>> >> >> > >> > 'sk' type_id=48 >>>>> >> >> > >> > [48] PTR '(anon)' type_id=35 >>>>> >> >> > >> > [49] VAR '_license' type_id=43, linkage=static >>>>> >> >> > >> > [50] VAR 'is_allow_list' type_id=5, linkage=global >>>>> >> >> > >> > [51] VAR 'sd_restrictif' type_id=37, linkage=global >>>>> >> >> > >> > [52] FUNC 'sd_restrictif_i' type_id=47 linkage=global >>>>> >> >> > >> > [53] FUNC 'sd_restrictif_e' type_id=47 linkage=global >>>>> >> >> > >> > [54] FUNC 'restrict_network_interfaces_impl' type_id=47 linkage=static >>>>> >> >> > >> > [55] DATASEC '.data' size=1 vlen=1 >>>>> >> >> > >> > type_id=50 offset=0 size=1 (VAR 'is_allow_list') >>>>> >> >> > >> > [56] DATASEC 'license' size=18 vlen=1 >>>>> >> >> > >> > type_id=49 offset=0 size=18 (VAR '_license') >>>>> >> >> > >> > [57] DATASEC '.maps' size=24 vlen=1 >>>>> >> >> > >> > type_id=51 offset=0 size=24 (VAR 'sd_restrictif') >>>>> >> >> > >> > >>>>> >> >> > >> > File before being stripped using bpftool gen object: >>>>> >> >> > >> > /home/buildroot/buildroot/output/per-package/systemd/host/sbin/bpftool >>>>> >> >> > >> > btf dump file >>>>> >> >> > >> > >>>>> >> > >>>>> > >>> >> > output/build/systemd-custom/build/src/core/bpf/restrict_ifaces/restrict-ifaces.bpf.unstripped.o >>>>> >> >> > >> > format raw >>>>> >> >> > >> > [1] INT 'signed char' size=1 bits_offset=0 nr_bits=8 encoding=UNKN >>>>> >> >> > >> > [2] INT 'unsigned char' size=1 bits_offset=0 nr_bits=8 encoding=CHAR >>>>> >> >> > >> > [3] TYPEDEF '__u8' type_id=2 >>>>> >> >> > >> > [4] CONST '(anon)' type_id=3 >>>>> >> >> > >> > [5] VOLATILE '(anon)' type_id=4 >>>>> >> >> > >> > [6] INT 'short int' size=2 bits_offset=0 nr_bits=16 encoding=SIGNED >>>>> >> >> > >> > [7] INT 'short unsigned int' size=2 bits_offset=0 nr_bits=16 encoding=(none) >>>>> >> >> > >> > [8] TYPEDEF '__u16' type_id=7 >>>>> >> >> > >> > [9] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED >>>>> >> >> > >> > [10] TYPEDEF '__s32' type_id=9 >>>>> >> >> > >> > [11] INT 'unsigned int' size=4 bits_offset=0 nr_bits=32 encoding=(none) >>>>> >> >> > >> > [12] TYPEDEF '__u32' type_id=11 >>>>> >> >> > >> > [13] INT 'long long int' size=8 bits_offset=0 nr_bits=64 encoding=SIGNED >>>>> >> >> > >> > [14] INT 'long long unsigned int' size=8 bits_offset=0 nr_bits=64 >>>>> >> >> > >> > encoding=(none) >>>>> >> >> > >> > [15] TYPEDEF '__u64' type_id=14 >>>>> >> >> > >> > [16] INT 'long unsigned int' size=8 bits_offset=0 nr_bits=64 encoding=(none) >>>>> >> >> > >> > [17] INT 'long int' size=8 bits_offset=0 nr_bits=64 encoding=SIGNED >>>>> >> >> > >> > [18] INT 'char' size=1 bits_offset=0 nr_bits=8 encoding=UNKN >>>>> >> >> > >> > [19] CONST '(anon)' type_id=18 >>>>> >> >> > >> > [20] TYPEDEF '__be16' type_id=8 >>>>> >> >> > >> > [21] TYPEDEF '__be32' type_id=12 >>>>> >> >> > >> > [22] ENUM 'bpf_map_type' encoding=UNSIGNED size=4 vlen=31 >>>>> >> >> > >> > 'BPF_MAP_TYPE_UNSPEC' val=0 >>>>> >> >> > >> > 'BPF_MAP_TYPE_HASH' val=1 >>>>> >> >> > >> > 'BPF_MAP_TYPE_ARRAY' val=2 >>>>> >> >> > >> > 'BPF_MAP_TYPE_PROG_ARRAY' val=3 >>>>> >> >> > >> > 'BPF_MAP_TYPE_PERF_EVENT_ARRAY' val=4 >>>>> >> >> > >> > 'BPF_MAP_TYPE_PERCPU_HASH' val=5 >>>>> >> >> > >> > 'BPF_MAP_TYPE_PERCPU_ARRAY' val=6 >>>>> >> >> > >> > 'BPF_MAP_TYPE_STACK_TRACE' val=7 >>>>> >> >> > >> > 'BPF_MAP_TYPE_CGROUP_ARRAY' val=8 >>>>> >> >> > >> > 'BPF_MAP_TYPE_LRU_HASH' val=9 >>>>> >> >> > >> > 'BPF_MAP_TYPE_LRU_PERCPU_HASH' val=10 >>>>> >> >> > >> > 'BPF_MAP_TYPE_LPM_TRIE' val=11 >>>>> >> >> > >> > 'BPF_MAP_TYPE_ARRAY_OF_MAPS' val=12 >>>>> >> >> > >> > 'BPF_MAP_TYPE_HASH_OF_MAPS' val=13 >>>>> >> >> > >> > 'BPF_MAP_TYPE_DEVMAP' val=14 >>>>> >> >> > >> > 'BPF_MAP_TYPE_SOCKMAP' val=15 >>>>> >> >> > >> > 'BPF_MAP_TYPE_CPUMAP' val=16 >>>>> >> >> > >> > 'BPF_MAP_TYPE_XSKMAP' val=17 >>>>> >> >> > >> > 'BPF_MAP_TYPE_SOCKHASH' val=18 >>>>> >> >> > >> > 'BPF_MAP_TYPE_CGROUP_STORAGE' val=19 >>>>> >> >> > >> > 'BPF_MAP_TYPE_REUSEPORT_SOCKARRAY' val=20 >>>>> >> >> > >> > 'BPF_MAP_TYPE_PERCPU_CGROUP_STORAGE' val=21 >>>>> >> >> > >> > 'BPF_MAP_TYPE_QUEUE' val=22 >>>>> >> >> > >> > 'BPF_MAP_TYPE_STACK' val=23 >>>>> >> >> > >> > 'BPF_MAP_TYPE_SK_STORAGE' val=24 >>>>> >> >> > >> > 'BPF_MAP_TYPE_DEVMAP_HASH' val=25 >>>>> >> >> > >> > 'BPF_MAP_TYPE_STRUCT_OPS' val=26 >>>>> >> >> > >> > 'BPF_MAP_TYPE_RINGBUF' val=27 >>>>> >> >> > >> > 'BPF_MAP_TYPE_INODE_STORAGE' val=28 >>>>> >> >> > >> > 'BPF_MAP_TYPE_TASK_STORAGE' val=29 >>>>> >> >> > >> > 'BPF_MAP_TYPE_BLOOM_FILTER' val=30 >>>>> >> >> > >> > [23] UNION '(anon)' size=8 vlen=1 >>>>> >> >> > >> > 'flow_keys' type_id=29 bits_offset=0 >>>>> >> >> > >> > [24] STRUCT 'bpf_flow_keys' size=56 vlen=13 >>>>> >> >> > >> > 'nhoff' type_id=8 bits_offset=0 >>>>> >> >> > >> > 'thoff' type_id=8 bits_offset=16 >>>>> >> >> > >> > 'addr_proto' type_id=8 bits_offset=32 >>>>> >> >> > >> > 'is_frag' type_id=3 bits_offset=48 >>>>> >> >> > >> > 'is_first_frag' type_id=3 bits_offset=56 >>>>> >> >> > >> > 'is_encap' type_id=3 bits_offset=64 >>>>> >> >> > >> > 'ip_proto' type_id=3 bits_offset=72 >>>>> >> >> > >> > 'n_proto' type_id=20 bits_offset=80 >>>>> >> >> > >> > 'sport' type_id=20 bits_offset=96 >>>>> >> >> > >> > 'dport' type_id=20 bits_offset=112 >>>>> >> >> > >> > '(anon)' type_id=25 bits_offset=128 >>>>> >> >> > >> > 'flags' type_id=12 bits_offset=384 >>>>> >> >> > >> > 'flow_label' type_id=21 bits_offset=416 >>>>> >> >> > >> > [25] UNION '(anon)' size=32 vlen=2 >>>>> >> >> > >> > '(anon)' type_id=26 bits_offset=0 >>>>> >> >> > >> > '(anon)' type_id=27 bits_offset=0 >>>>> >> >> > >> > [26] STRUCT '(anon)' size=8 vlen=2 >>>>> >> >> > >> > 'ipv4_src' type_id=21 bits_offset=0 >>>>> >> >> > >> > 'ipv4_dst' type_id=21 bits_offset=32 >>>>> >> >> > >> > [27] STRUCT '(anon)' size=32 vlen=2 >>>>> >> >> > >> > 'ipv6_src' type_id=28 bits_offset=0 >>>>> >> >> > >> > 'ipv6_dst' type_id=28 bits_offset=128 >>>>> >> >> > >> > [28] ARRAY '(anon)' type_id=12 index_type_id=16 nr_elems=4 >>>>> >> >> > >> > [29] PTR '(anon)' type_id=24 >>>>> >> >> > >> > [30] UNION '(anon)' size=8 vlen=1 >>>>> >> >> > >> > 'sk' type_id=32 bits_offset=0 >>>>> >> >> > >> > [31] STRUCT 'bpf_sock' size=80 vlen=14 >>>>> >> >> > >> > 'bound_dev_if' type_id=12 bits_offset=0 >>>>> >> >> > >> > 'family' type_id=12 bits_offset=32 >>>>> >> >> > >> > 'type' type_id=12 bits_offset=64 >>>>> >> >> > >> > 'protocol' type_id=12 bits_offset=96 >>>>> >> >> > >> > 'mark' type_id=12 bits_offset=128 >>>>> >> >> > >> > 'priority' type_id=12 bits_offset=160 >>>>> >> >> > >> > 'src_ip4' type_id=12 bits_offset=192 >>>>> >> >> > >> > 'src_ip6' type_id=28 bits_offset=224 >>>>> >> >> > >> > 'src_port' type_id=12 bits_offset=352 >>>>> >> >> > >> > 'dst_port' type_id=20 bits_offset=384 >>>>> >> >> > >> > 'dst_ip4' type_id=12 bits_offset=416 >>>>> >> >> > >> > 'dst_ip6' type_id=28 bits_offset=448 >>>>> >> >> > >> > 'state' type_id=12 bits_offset=576 >>>>> >> >> > >> > 'rx_queue_mapping' type_id=10 bits_offset=608 >>>>> >> >> > >> > [32] PTR '(anon)' type_id=31 >>>>> >> >> > >> > [33] STRUCT '__sk_buff' size=192 vlen=33 >>>>> >> >> > >> > 'len' type_id=12 bits_offset=0 >>>>> >> >> > >> > 'pkt_type' type_id=12 bits_offset=32 >>>>> >> >> > >> > 'mark' type_id=12 bits_offset=64 >>>>> >> >> > >> > 'queue_mapping' type_id=12 bits_offset=96 >>>>> >> >> > >> > 'protocol' type_id=12 bits_offset=128 >>>>> >> >> > >> > 'vlan_present' type_id=12 bits_offset=160 >>>>> >> >> > >> > 'vlan_tci' type_id=12 bits_offset=192 >>>>> >> >> > >> > 'vlan_proto' type_id=12 bits_offset=224 >>>>> >> >> > >> > 'priority' type_id=12 bits_offset=256 >>>>> >> >> > >> > 'ingress_ifindex' type_id=12 bits_offset=288 >>>>> >> >> > >> > 'ifindex' type_id=12 bits_offset=320 >>>>> >> >> > >> > 'tc_index' type_id=12 bits_offset=352 >>>>> >> >> > >> > 'cb' type_id=34 bits_offset=384 >>>>> >> >> > >> > 'hash' type_id=12 bits_offset=544 >>>>> >> >> > >> > 'tc_classid' type_id=12 bits_offset=576 >>>>> >> >> > >> > 'data' type_id=12 bits_offset=608 >>>>> >> >> > >> > 'data_end' type_id=12 bits_offset=640 >>>>> >> >> > >> > 'napi_id' type_id=12 bits_offset=672 >>>>> >> >> > >> > 'family' type_id=12 bits_offset=704 >>>>> >> >> > >> > 'remote_ip4' type_id=12 bits_offset=736 >>>>> >> >> > >> > 'local_ip4' type_id=12 bits_offset=768 >>>>> >> >> > >> > 'remote_ip6' type_id=28 bits_offset=800 >>>>> >> >> > >> > 'local_ip6' type_id=28 bits_offset=928 >>>>> >> >> > >> > 'remote_port' type_id=12 bits_offset=1056 >>>>> >> >> > >> > 'local_port' type_id=12 bits_offset=1088 >>>>> >> >> > >> > 'data_meta' type_id=12 bits_offset=1120 >>>>> >> >> > >> > '(anon)' type_id=23 bits_offset=1152 >>>>> >> >> > >> > 'tstamp' type_id=15 bits_offset=1216 >>>>> >> >> > >> > 'wire_len' type_id=12 bits_offset=1280 >>>>> >> >> > >> > 'gso_segs' type_id=12 bits_offset=1312 >>>>> >> >> > >> > '(anon)' type_id=30 bits_offset=1344 >>>>> >> >> > >> > 'gso_size' type_id=12 bits_offset=1408 >>>>> >> >> > >> > 'hwtstamp' type_id=15 bits_offset=1472 >>>>> >> >> > >> > [34] ARRAY '(anon)' type_id=12 index_type_id=16 nr_elems=5 >>>>> >> >> > >> > [35] CONST '(anon)' type_id=33 >>>>> >> >> > >> > [36] PTR '(anon)' type_id=0 >>>>> >> >> > >> > [37] STRUCT '(anon)' size=24 vlen=3 >>>>> >> >> > >> > 'type' type_id=39 bits_offset=0 >>>>> >> >> > >> > 'key' type_id=40 bits_offset=64 >>>>> >> >> > >> > 'value' type_id=41 bits_offset=128 >>>>> >> >> > >> > [38] ARRAY '(anon)' type_id=9 index_type_id=16 nr_elems=1 >>>>> >> >> > >> > [39] PTR '(anon)' type_id=38 >>>>> >> >> > >> > [40] PTR '(anon)' type_id=12 >>>>> >> >> > >> > [41] PTR '(anon)' type_id=3 >>>>> >> >> > >> > [42] ARRAY '(anon)' type_id=19 index_type_id=16 nr_elems=18 >>>>> >> >> > >> > [43] CONST '(anon)' type_id=42 >>>>> >> >> > >> > [44] FUNC_PROTO '(anon)' ret_type_id=36 vlen=2 >>>>> >> >> > >> > '(anon)' type_id=36 >>>>> >> >> > >> > '(anon)' type_id=46 >>>>> >> >> > >> > [45] CONST '(anon)' type_id=0 >>>>> >> >> > >> > [46] PTR '(anon)' type_id=45 >>>>> >> >> > >> > [47] FUNC_PROTO '(anon)' ret_type_id=9 vlen=1 >>>>> >> >> > >> > 'sk' type_id=48 >>>>> >> >> > >> > [48] PTR '(anon)' type_id=35 >>>>> >> >> > >> > [49] FUNC_PROTO '(anon)' ret_type_id=9 vlen=1 >>>>> >> >> > >> > 'sk' type_id=48 >>>>> >> >> > >> > [50] FUNC_PROTO '(anon)' ret_type_id=9 vlen=1 >>>>> >> >> > >> > 'sk' type_id=48 >>>>> >> >> > >> > [51] VAR '_license' type_id=43, linkage=static >>>>> >> >> > >> > [52] VAR 'is_allow_list' type_id=5, linkage=global >>>>> >> >> > >> > [53] VAR 'sd_restrictif' type_id=37, linkage=global >>>>> >> >> > >> > [54] FUNC 'bpf_map_lookup_elem' type_id=44 linkage=global >>>>> >> >> > >> > [55] FUNC 'sd_restrictif_i' type_id=47 linkage=global >>>>> >> >> > >> > [56] FUNC 'sd_restrictif_e' type_id=49 linkage=global >>>>> >> >> > >> > [57] FUNC 'restrict_network_interfaces_impl' type_id=50 linkage=static >>>>> >> >> > >> > [58] DATASEC 'license' size=0 vlen=1 >>>>> >> >> > >> > type_id=51 offset=0 size=18 (VAR '_license') >>>>> >> >> > >> > [59] DATASEC '.maps' size=0 vlen=1 >>>>> >> >> > >> > type_id=53 offset=0 size=24 (VAR 'sd_restrictif') >>>>> >> >> > >> > [60] DATASEC '.data' size=0 vlen=1 >>>>> >> >> > >> > type_id=52 offset=0 size=1 (VAR 'is_allow_list') >>>>> >> >> > >> > >>>>> >> >> > >> >> >>>>> >> >> > >> >> >> GCC is wrong, clearly. This function is global ([0]) and libbpf >>>>> >> >> > >> >> >> expects it to be marked as such in BTF. >>>>> >> >> > >> >> >> >>>>> >> >> > >> >> >> >>>>> >> >> > >> > >>>>> >> > >>>>> > >>> >> > https://github.com/systemd/systemd/blob/main/src/core/bpf/restrict_ifaces/restrict-ifaces.bpf.c#L42-L50 >>>>> >> >> > >> >> >> >>>>> >> >> > >> >> >> >>>>> >> >> > >> >> >>> GCC: >>>>> >> >> > >> >> >>> >>>>> >> >> > >> >> >>> [1] INT 'signed char' size=1 bits_offset=0 nr_bits=8 encoding=UNKN >>>>> >> >> > >> >> >>> [2] INT 'unsigned char' size=1 bits_offset=0 nr_bits=8 encoding=CHAR >>>>> >> >> > >> >> >>> [3] TYPEDEF '__u8' type_id=2 >>>>> >> >> > >> >> >>> [4] CONST '(anon)' type_id=3 >>>>> >> >> > >> >> >> >>>>> >> >> > >> >> >> [...]
