lib/compat_audit.c

Source file repositories/reference/linux-study-clean/lib/compat_audit.c

File Facts

System
Linux kernel
Corpus path
lib/compat_audit.c
Extension
.c
Size
1026 bytes
Lines
57
Domain
Kernel Services
Bucket
lib
Inferred role
Kernel Services: implementation source
Status
source implementation candidate

Why This File Exists

Shared kernel service surface used by multiple subsystems, including helpers, cryptography, virtualization support, and async I/O infrastructure.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0
#include <linux/init.h>
#include <linux/types.h>
#include <linux/audit_arch.h>
#include <asm/unistd32.h>

unsigned int compat_dir_class[] = {
#include <asm-generic/audit_dir_write.h>
~0U
};

unsigned int compat_read_class[] = {
#include <asm-generic/audit_read.h>
~0U
};

unsigned int compat_write_class[] = {
#include <asm-generic/audit_write.h>
~0U
};

unsigned int compat_chattr_class[] = {
#include <asm-generic/audit_change_attr.h>
~0U
};

unsigned int compat_signal_class[] = {
#include <asm-generic/audit_signal.h>
~0U
};

int audit_classify_compat_syscall(int abi, unsigned int syscall)
{
	switch (syscall) {
#ifdef __NR_open
	case __NR_open:
		return AUDITSC_OPEN;
#endif
#ifdef __NR_openat
	case __NR_openat:
		return AUDITSC_OPENAT;
#endif
#ifdef __NR_socketcall
	case __NR_socketcall:
		return AUDITSC_SOCKETCALL;
#endif
	case __NR_execve:
		return AUDITSC_EXECVE;
#ifdef __NR_openat2
	case __NR_openat2:
		return AUDITSC_OPENAT2;
#endif
	default:
		return AUDITSC_COMPAT;
	}
}

Annotation

Implementation Notes