1 #include "ext4_utils/key_control.h" 2 3 #include <stdarg.h> 4 #include <unistd.h> 5 #include <sys/syscall.h> 6 #include <linux/keyctl.h> 7 8 static long keyctl(int cmd, ...) 9 { 10 va_list va; 11 unsigned long arg2, arg3, arg4, arg5; 12 13 va_start(va, cmd); 14 arg2 = va_arg(va, unsigned long); 15 arg3 = va_arg(va, unsigned long); 16 arg4 = va_arg(va, unsigned long); 17 arg5 = va_arg(va, unsigned long); 18 va_end(va); 19 return syscall(__NR_keyctl, cmd, arg2, arg3, arg4, arg5); 20 } 21 22 key_serial_t add_key(const char *type, 23 const char *description, 24 const void *payload, 25 size_t plen, 26 key_serial_t ringid) 27 { 28 return syscall(__NR_add_key, type, description, payload, plen, ringid); 29 } 30 31 long keyctl_unlink(key_serial_t key, key_serial_t keyring) 32 { 33 return keyctl(KEYCTL_UNLINK, key, keyring); 34 } 35 36 long keyctl_setperm(key_serial_t id, int permissions) 37 { 38 return keyctl(KEYCTL_SETPERM, id, permissions); 39 } 40 41 long keyctl_search(key_serial_t ringid, const char *type, 42 const char *description, key_serial_t destringid) 43 { 44 return keyctl(KEYCTL_SEARCH, ringid, type, description, destringid); 45 } 46
