aboutsummaryrefslogtreecommitdiff
path: root/analyzer/utils/tcp_seq_math.c
blob: 2cc6e3fc32c9ebacca82753469b7e52238af7a14 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
#include "utils/tcp_seq_math.h"

int seq_after(uint32_t a, uint32_t b) {
    return (int32_t)(a - b) > 0;
}

int seq_before(uint32_t a, uint32_t b) {
    return (int32_t)(a - b) < 0;
}

int seq_after_eq(uint32_t a, uint32_t b) {
    return (int32_t)(a - b) >= 0;
}

int seq_before_eq(uint32_t a, uint32_t b) {
    return (int32_t)(a - b) <= 0;
}

int seq_in_range_ii(uint32_t value, uint32_t range_start, uint32_t range_end) {
    int after_eq = seq_after_eq(value, range_start);
    int before_eq = seq_before_eq(value, range_end);
    return after_eq && before_eq;
}

int seq_in_range_ee(uint32_t value, uint32_t range_start, uint32_t range_end) {
    int after = seq_after(value, range_start);
    int before = seq_before(value, range_end);
    return after && before;
}

int seq_in_range_ie(uint32_t value, uint32_t range_start, uint32_t range_end) {
    int after_eq = seq_after_eq(value, range_start);
    int before = seq_before(value, range_end);
    return after_eq && before;
}

int seq_in_range_ei(uint32_t value, uint32_t range_start, uint32_t range_end) {
    int after = seq_after(value, range_start);
    int before_eq = seq_before_eq(value, range_end);
    return after && before_eq;
}