e54dc2431d
When auditing syscalls that send signals, log the pid and security context for each target process. Optimize the data collection by adding a counter for signal-related rules, and avoiding allocating an aux struct unless we have more than one target process. For process groups, collect pid/context data in blocks of 16. Move the audit_signal_info() hook up in check_kill_permission() so we audit attempts where permission is denied. Signed-off-by: Amy Griffis <amy.griffis@hp.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
83 lines
1.8 KiB
C
83 lines
1.8 KiB
C
#include <linux/init.h>
|
|
#include <linux/types.h>
|
|
#include <linux/audit.h>
|
|
#include <asm/unistd.h>
|
|
|
|
static unsigned dir_class[] = {
|
|
#include <asm-generic/audit_dir_write.h>
|
|
~0U
|
|
};
|
|
|
|
static unsigned read_class[] = {
|
|
#include <asm-generic/audit_read.h>
|
|
~0U
|
|
};
|
|
|
|
static unsigned write_class[] = {
|
|
#include <asm-generic/audit_write.h>
|
|
~0U
|
|
};
|
|
|
|
static unsigned chattr_class[] = {
|
|
#include <asm-generic/audit_change_attr.h>
|
|
~0U
|
|
};
|
|
|
|
static unsigned signal_class[] = {
|
|
#include <asm-generic/audit_signal.h>
|
|
~0U
|
|
};
|
|
|
|
int audit_classify_arch(int arch)
|
|
{
|
|
#ifdef CONFIG_PPC64
|
|
if (arch == AUDIT_ARCH_PPC)
|
|
return 1;
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
int audit_classify_syscall(int abi, unsigned syscall)
|
|
{
|
|
#ifdef CONFIG_PPC64
|
|
extern int ppc32_classify_syscall(unsigned);
|
|
if (abi == AUDIT_ARCH_PPC)
|
|
return ppc32_classify_syscall(syscall);
|
|
#endif
|
|
switch(syscall) {
|
|
case __NR_open:
|
|
return 2;
|
|
case __NR_openat:
|
|
return 3;
|
|
case __NR_socketcall:
|
|
return 4;
|
|
case __NR_execve:
|
|
return 5;
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
static int __init audit_classes_init(void)
|
|
{
|
|
#ifdef CONFIG_PPC64
|
|
extern __u32 ppc32_dir_class[];
|
|
extern __u32 ppc32_write_class[];
|
|
extern __u32 ppc32_read_class[];
|
|
extern __u32 ppc32_chattr_class[];
|
|
extern __u32 ppc32_signal_class[];
|
|
audit_register_class(AUDIT_CLASS_WRITE_32, ppc32_write_class);
|
|
audit_register_class(AUDIT_CLASS_READ_32, ppc32_read_class);
|
|
audit_register_class(AUDIT_CLASS_DIR_WRITE_32, ppc32_dir_class);
|
|
audit_register_class(AUDIT_CLASS_CHATTR_32, ppc32_chattr_class);
|
|
audit_register_class(AUDIT_CLASS_SIGNAL_32, ppc32_signal_class);
|
|
#endif
|
|
audit_register_class(AUDIT_CLASS_WRITE, write_class);
|
|
audit_register_class(AUDIT_CLASS_READ, read_class);
|
|
audit_register_class(AUDIT_CLASS_DIR_WRITE, dir_class);
|
|
audit_register_class(AUDIT_CLASS_CHATTR, chattr_class);
|
|
audit_register_class(AUDIT_CLASS_SIGNAL, signal_class);
|
|
return 0;
|
|
}
|
|
|
|
__initcall(audit_classes_init);
|