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Move map related stuff to maps.h and run go generate tls_tapper.go

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This commit is contained in:
M. Mert Yildiran 2022-05-30 19:37:03 +03:00
parent 81a1f50d2c
commit 4111f0f58c
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GPG Key ID: D42ADB236521BF7A
4 changed files with 10 additions and 16 deletions
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16
tap/tlstapper/bpf/golang_uprobes.c
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@ -9,17 +9,9 @@ Copyright (C) UP9 Inc.
#include "include/headers.h" #include "include/headers.h"
#include "include/maps.h" #include "include/maps.h"
#define MAX_ENTRIES_LRU_HASH (1 << 14) // 16384
#define MAX_ENTRIES_RINGBUFF (1 << 24) // 16777216
#define BUFFER_SIZE_READ_WRITE (1 << 19) // 512 KiB #define BUFFER_SIZE_READ_WRITE (1 << 19) // 512 KiB
struct socket {
__u32 pid;
__u32 fd;
__u32 key_dial;
};
struct golang_read_write { struct golang_read_write {
__u32 pid; __u32 pid;
__u32 fd; __u32 fd;
@ -30,14 +22,6 @@ struct golang_read_write {
__u8 data[BUFFER_SIZE_READ_WRITE]; __u8 data[BUFFER_SIZE_READ_WRITE];
}; };
BPF_LRU_HASH(golang_socket_dials, __u64, struct socket);
BPF_LRU_HASH(golang_dial_writes, __u32, struct socket);
struct {
__uint(type, BPF_MAP_TYPE_RINGBUF);
__uint(max_entries, MAX_ENTRIES_RINGBUFF);
} golang_read_writes SEC(".maps");
const struct golang_read_write *unused __attribute__((unused)); const struct golang_read_write *unused __attribute__((unused));

10
tap/tlstapper/bpf/include/maps.h
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@ -53,6 +53,12 @@ struct fd_info {
__u8 flags; __u8 flags;
}; };
struct socket {
__u32 pid;
__u32 fd;
__u32 key_dial;
};
#define BPF_MAP(_name, _type, _key_type, _value_type, _max_entries) \ #define BPF_MAP(_name, _type, _key_type, _value_type, _max_entries) \
struct bpf_map_def SEC("maps") _name = { \ struct bpf_map_def SEC("maps") _name = { \
.type = _type, \ .type = _type, \
@ -83,4 +89,8 @@ BPF_LRU_HASH(file_descriptor_to_ipv4, __u64, struct fd_info);
BPF_PERF_OUTPUT(chunks_buffer); BPF_PERF_OUTPUT(chunks_buffer);
BPF_PERF_OUTPUT(log_buffer); BPF_PERF_OUTPUT(log_buffer);
BPF_LRU_HASH(golang_socket_dials, __u64, struct socket);
BPF_LRU_HASH(golang_dial_writes, __u32, struct socket);
BPF_RINGBUF(golang_read_writes);
#endif /* __MAPS__ */ #endif /* __MAPS__ */

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tap/tlstapper/tlstapper_bpfeb.o
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tap/tlstapper/tlstapper_bpfel.o
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