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Fix eBPD PID detection for UDP on linux and recompile eBPF programs

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Daniel
2023-08-04 14:10:25 +02:00
parent a76e659989
commit bf6bf0705d
6 changed files with 12 additions and 12 deletions
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firewall/interception/ebpf/bandwidth/bpf_bpfeb.o
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firewall/interception/ebpf/bandwidth/bpf_bpfel.o
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firewall/interception/ebpf/connection_listener/bpf_bpfeb.o
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firewall/interception/ebpf/connection_listener/bpf_bpfel.o
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firewall/interception/ebpf/programs/monitor.c
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@@ -102,8 +102,8 @@ int BPF_PROG(udp_v4_connect, struct sock *sk) {
return 0;
}
// Read PID
udp_info->pid = __builtin_bswap32((u32)bpf_get_current_pid_tgid());
// Read PID (Careful: This is the Thread Group ID in kernel speak!)
udp_info->pid = __builtin_bswap32((u32)(bpf_get_current_pid_tgid() >> 32));
// Set src and dist ports
udp_info->sport = __builtin_bswap16(sk->__sk_common.skc_num);
@@ -151,8 +151,8 @@ int BPF_PROG(udp_v6_connect, struct sock *sk) {
return 0;
}
// Read PID
udp_info->pid = __builtin_bswap32((u32)bpf_get_current_pid_tgid());
// Read PID (Careful: This is the Thread Group ID in kernel speak!)
udp_info->pid = __builtin_bswap32((u32)(bpf_get_current_pid_tgid() >> 32));
// Set src and dist ports
udp_info->sport = __builtin_bswap16(sk->__sk_common.skc_num);