#include "key_control.h"
#include <stdarg.h>
#include <unistd.h>
#include <sys/syscall.h>
/* keyring keyctl commands */
#define KEYCTL_REVOKE 3 /* revoke a key */
#define KEYCTL_SETPERM 5 /* set permissions for a key in a keyring */
#define KEYCTL_SEARCH 10 /* search for a key in a keyring */
static long keyctl(int cmd, ...)
{
va_list va;
unsigned long arg2, arg3, arg4, arg5;
va_start(va, cmd);
arg2 = va_arg(va, unsigned long);
arg3 = va_arg(va, unsigned long);
arg4 = va_arg(va, unsigned long);
arg5 = va_arg(va, unsigned long);
va_end(va);
return syscall(__NR_keyctl, cmd, arg2, arg3, arg4, arg5);
}
key_serial_t add_key(const char *type,
const char *description,
const void *payload,
size_t plen,
key_serial_t ringid)
{
return syscall(__NR_add_key, type, description, payload, plen, ringid);
}
long keyctl_revoke(key_serial_t id)
{
return keyctl(KEYCTL_REVOKE, id);
}
long keyctl_setperm(key_serial_t id, int permissions)
{
return keyctl(KEYCTL_SETPERM, id, permissions);
}
long keyctl_search(key_serial_t ringid, const char *type,
const char *description, key_serial_t destringid)
{
return keyctl(KEYCTL_SEARCH, ringid, type, description, destringid);
}
