issues while trying to install nikss

[Arishbiswas]

hello, i am facing issues while trying to install nikss from source , i tried in both ubuntu 20.0 as well as ubuntu 22.0 , in the former one couldnot run the build.sh script it throws error but in ubuntu 22.0 i could run the build.sh but while i try to run the make file it generates lots of errors, as i am new , it would be a great help if anyone would let me know how to solve this issue.

This is the error messages that i got while trying to run the "make -j4" : arishmita@arishmita-VirtualBox:~/nikss/build$ make -j4

make[1]: Entering directory '/home/arishmita/nikss/build'

make[2]: Entering directory '/home/arishmita/nikss/build'

make[2]: Leaving directory '/home/arishmita/nikss/build'

make[2]: Entering directory '/home/arishmita/nikss/build'

[ 3%] Building C object CMakeFiles/nikss-ctl.dir/lib/btf.c.o

[ 7%] Building C object CMakeFiles/nikss-ctl.dir/lib/nikss_pre.c.o

[ 10%] Building C object CMakeFiles/nikss-ctl.dir/lib/common.c.o

[ 14%] Building C object CMakeFiles/nikss-ctl.dir/lib/nikss_digest.c.o

In file included from /home/arishmita/nikss/install/usr/include/bpf/bpf.h:26,

             from /home/arishmita/nikss/lib/nikss_pre.c:18:

/home/arishmita/nikss/install/usr/include/linux/bpf.h:1281:17: error: unknown type name ‘__aligned_u64’

1281 | __aligned_u64 key;

  |                 ^~~~~~~~~~~~~

/home/arishmita/nikss/install/usr/include/linux/bpf.h:1283:25: error: unknown type name ‘__aligned_u64’

1283 | __aligned_u64 value;

  |                         ^~~~~~~~~~~~~

/home/arishmita/nikss/install/usr/include/linux/bpf.h:1284:25: error: unknown type name ‘__aligned_u64’

1284 | __aligned_u64 next_key;

  |                         ^~~~~~~~~~~~~

/home/arishmita/nikss/install/usr/include/linux/bpf.h:1290:17: error: unknown type name ‘__aligned_u64’

1290 | __aligned_u64 in_batch; /* start batch,

  |                 ^~~~~~~~~~~~~

/home/arishmita/nikss/install/usr/include/linux/bpf.h:1293:17: error: unknown type name ‘__aligned_u64’

1293 | __aligned_u64 out_batch; / output: next start batch /

  |                 ^~~~~~~~~~~~~

/home/arishmita/nikss/install/usr/include/linux/bpf.h:1294:17: error: unknown type name ‘__aligned_u64’

1294 | __aligned_u64 keys;

  |                 ^~~~~~~~~~~~~

In file included from /home/arishmita/nikss/install/usr/include/bpf/bpf.h:26,

             from /home/arishmita/nikss/lib/nikss_digest.c:18:

/home/arishmita/nikss/install/usr/include/linux/bpf.h:1281:17: error: unknown type name ‘__aligned_u64’

1281 | __aligned_u64 key;

  |                 ^~~~~~~~~~~~~

/home/arishmita/nikss/install/usr/include/linux/bpf.h:1295:17: error: unknown type name ‘__aligned_u64’

1295 | __aligned_u64 values;

  |                 ^~~~~~~~~~~~~

/home/arishmita/nikss/install/usr/include/linux/bpf.h:1283:25: error: unknown type name ‘__aligned_u64’

1283 | __aligned_u64 value;

  |                         ^~~~~~~~~~~~~

  |         ^~~~~~~~~~~~~

/home/arishmita/nikss/install/usr/include/linux/bpf.h:5411:25: error: unknown type name ‘__be32’

thanks in advance

[tatry]

@Arishbiswas Did you call the build_libbpf.sh script? I'm not sure, but installing gcc-multilib can help in some cases.

[Arishbiswas]

yes now the problem is solved i could install nikss-ctl but, i am facing problem while trying to load a program to the ebpf subsystem. THIS IS THE UPF PROGRAM THAT I WAS TRYING TO LOAD INTO THE KERNEL

nikss-ctl pipeline load id 003 upf.o libbpf: elf: skipping unrecognized data section(9) .maps.clone_session_tbl_inner libbpf: elf: skipping unrecognized data section(10) .maps.clone_session_tbl libbpf: elf: skipping unrecognized data section(11) .maps.multicast_grp_tbl_inner libbpf: elf: skipping unrecognized data section(12) .maps.multicast_grp_tbl libbpf: elf: skipping unrecognized data section(13) .maps.ingress_ip_forward_ipv4_lpm libbpf: elf: skipping unrecognized data section(14) .maps.ingress_ip_forward_ipv4_lpm_defaultAction libbpf: elf: skipping unrecognized data section(15) .maps.ingress_upf_ingress_far_lookup libbpf: elf: skipping unrecognized data section(16) .maps.ingress_upf_ingress_far_lookup_defaultAction libbpf: elf: skipping unrecognized data section(17) .maps.ingress_upf_ingress_pdr_lookup_prefixes libbpf: elf: skipping unrecognized data section(18) .maps.ingress_upf_ingress_pdr_lookup_tuple libbpf: elf: skipping unrecognized data section(19) .maps.ingress_upf_ingress_pdr_lookup_tuples_map libbpf: elf: skipping unrecognized data section(20) .maps.ingress_upf_ingress_pdr_lookup_defaultAction libbpf: elf: skipping unrecognized data section(21) .maps.ingress_upf_ingress_session_lookup_by_teid libbpf: elf: skipping unrecognized data section(22) .maps.ingress_upf_ingress_session_lookup_by_teid_defaultAction libbpf: elf: skipping unrecognized data section(23) .maps.ingress_upf_ingress_session_lookup_by_ue_ip libbpf: elf: skipping unrecognized data section(24) .maps.ingress_upf_ingress_session_lookup_by_ue_ip_defaultAction libbpf: elf: skipping unrecognized data section(25) .maps.ingress_upf_ingress_source_interface_lookup_by_port libbpf: elf: skipping unrecognized data section(26) .maps.ingress_upf_ingress_source_interface_lookup_by_port_defaultAction libbpf: elf: skipping unrecognized data section(27) .maps.ingress_upf_process_ingress_l4port_ingress_l4_dst_port libbpf: elf: skipping unrecognized data section(28) .maps.ingress_upf_process_ingress_l4port_ingress_l4_dst_port_defaultAction libbpf: elf: skipping unrecognized data section(29) .maps.ingress_upf_process_ingress_l4port_ingress_l4_src_port libbpf: elf: skipping unrecognized data section(30) .maps.ingress_upf_process_ingress_l4port_ingress_l4_src_port_defaultAction libbpf: elf: skipping unrecognized data section(31) .maps.ingress_upf_process_ingress_l4port_ingress_l4port_fields libbpf: elf: skipping unrecognized data section(32) .maps.ingress_upf_process_ingress_l4port_ingress_l4port_fields_defaultAction libbpf: elf: skipping unrecognized data section(33) .maps.hdr_md_cpumap libbpf: elf: skipping unrecognized data section(34) .maps.crc_lookup_tbl libbpf: elf: skipping unrecognized data section(35) .rodata.cst32 libbpf: elf: skipping unrecognized data section(37) .rodata.cst16 libbpf: elf: skipping unrecognized data section(53) .eh_frame libbpf: elf: skipping relo section(54) .rel.eh_frame for section(53) .eh_frame libbpf: maps section in upf.o: "ingress_ip_forward_ipv4_lpm_defaultAction" has unrecognized, non-zero options cannot load the BPF program: No such file or directory An error occurred during pipeline load id 3

[tatry]

yes now the problem is solved

Could you share the solution? There is non-zero chance that it could impact on error you got.

cannot load the BPF program: No such file or directory An error occurred during pipeline load id 3

Looks like a problem with permissions (did you use root?) or something wrong with upf.o object program (how did you compile it?)

[Arishbiswas]

actually i was trying to install nikss in my VM and i was facing those errors , later i tried installng it in my host ubuntu 22.0 then automatically the problem got solved and i could install nikss-ctl

now, while loading the object file , i am facing issues, i compiled the program following these steps: $ p4c-ebpf --arch psa --target kernel -o upf.c upf.p4 $ clang -Ibackends/ebpf/runtime -Ibackends/ebpf/runtime/usr/include -O2 -g -c -emit-llvm -o upf.bc upf.c $ llc -march=bpf -mcpu=probe -filetype=obj -o upf.o upf.bc yes i used root, stll unable o load, could you please mention do i need to do something else or am i missing something

[tatry]

Add option -DBTF to your clang command, like in this makefile.

[Arishbiswas]

Thankyou so much for your suggestion, now the upf.o program is loaded successfully

but the other program bng.o shows this error:

BPF program is too large. Processed 1000001 insn processed 1000001 insns (limit 1000000) max_states_per_insn 25 total_states 32925 peak_states 4032 mark_read 329 libbpf: -- END LOG -- libbpf: failed to load program 'tc_ingress_func' libbpf: failed to load object 'bng.o' cannot load the BPF program: Unknown error 4007 An error occurred during pipeline load id 1 can you explain is this because of memory constraint of my system

[tatry]

Program is too big (in sense of number of instructions, not size of file, tables, etc.). This could be hard to fix directly, because it is more compiler dependent problem...

I don't know which C compiler you use, but clang-10 should work.

[Arishbiswas]

i use clang-14.. all others are working except for bng.p4 i also tried the mininet demo i faced issue in that too :

mininet> s1 nikss-ctl table get pipe 1 ingress_tbl_fwd key 00:04:00:00:00:01 failed to get entry: No such file or directory can you explain why is it showing this error while i try to configure the switch

[tatry]

mininet> s1 nikss-ctl table get pipe 1 ingress_tbl_fwd key 00:04:00:00:00:01 failed to get entry: No such file or directory can you explain why is it showing this error while i try to configure the switch

Probably such entry does not exist in the table, try without key to see all the entries and then fix key in your command.