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change bash line size to 256 bytes #55

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merged 1 commit into from
May 4, 2022
Merged

change bash line size to 256 bytes #55

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4 changes: 2 additions & 2 deletions kern/bash_kern.c
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,7 @@

struct event {
u32 pid;
u8 line[80];
u8 line[MAX_DATA_SIZE_BASH];
u32 retval;
char comm[TASK_COMM_LEN];
};
Expand Down Expand Up @@ -60,4 +60,4 @@ int uretprobe_bash_retval(struct pt_regs *ctx){
sizeof(struct event));
}
return 0;
}
}
3 changes: 2 additions & 1 deletion kern/common.h
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Original file line number Diff line number Diff line change
Expand Up @@ -15,6 +15,7 @@
#define MAX_DATA_SIZE_OPENSSL 1024 * 4
#define MAX_DATA_SIZE_MYSQL 256
#define MAX_DATA_SIZE_POSTGRES 256
#define MAX_DATA_SIZE_BASH 256

// enum_server_command, via
// https://dev.mysql.com/doc/internals/en/com-query.html COM_QUERT command 03
Expand All @@ -35,4 +36,4 @@ const volatile u64 target_pid = 0;
char __license[] SEC("license") = "Dual MIT/GPL";
__u32 _version SEC("version") = 0xFFFFFFFE;

#endif
#endif
11 changes: 10 additions & 1 deletion user/event_bash.go
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Expand Up @@ -8,10 +8,19 @@ import (
"golang.org/x/sys/unix"
)

/*
u32 pid;
u8 line[MAX_DATE_SIZE_BASH];
u32 retval;
char comm[TASK_COMM_LEN];
*/

const MAX_DATA_SIZE_BASH = 256

type bashEvent struct {
module IModule
Pid uint32
Line [80]uint8
Line [MAX_DATA_SIZE_BASH]uint8
Retval uint32
Comm [16]byte
}
Expand Down