Paul Lawrence | bc2eb8c | 2015-04-28 22:13:04 +0000 | [diff] [blame^] | 1 | #include "key_control.h" |
| 2 | |
| 3 | #include <stdarg.h> |
| 4 | #include <unistd.h> |
| 5 | #include <sys/syscall.h> |
| 6 | |
| 7 | /* keyring keyctl commands */ |
| 8 | #define KEYCTL_SETPERM 5 /* set permissions for a key in a keyring */ |
| 9 | #define KEYCTL_UNLINK 9 /* unlink a key from a keyring */ |
| 10 | #define KEYCTL_SEARCH 10 /* search for a key in a keyring */ |
| 11 | |
| 12 | static long keyctl(int cmd, ...) |
| 13 | { |
| 14 | va_list va; |
| 15 | unsigned long arg2, arg3, arg4, arg5; |
| 16 | |
| 17 | va_start(va, cmd); |
| 18 | arg2 = va_arg(va, unsigned long); |
| 19 | arg3 = va_arg(va, unsigned long); |
| 20 | arg4 = va_arg(va, unsigned long); |
| 21 | arg5 = va_arg(va, unsigned long); |
| 22 | va_end(va); |
| 23 | return syscall(__NR_keyctl, cmd, arg2, arg3, arg4, arg5); |
| 24 | } |
| 25 | |
| 26 | key_serial_t add_key(const char *type, |
| 27 | const char *description, |
| 28 | const void *payload, |
| 29 | size_t plen, |
| 30 | key_serial_t ringid) |
| 31 | { |
| 32 | return syscall(__NR_add_key, type, description, payload, plen, ringid); |
| 33 | } |
| 34 | |
| 35 | long keyctl_setperm(key_serial_t id, int permissions) |
| 36 | { |
| 37 | return keyctl(KEYCTL_SETPERM, id, permissions); |
| 38 | } |
| 39 | |
| 40 | long keyctl_search(key_serial_t ringid, const char *type, |
| 41 | const char *description, key_serial_t destringid) |
| 42 | { |
| 43 | return keyctl(KEYCTL_SEARCH, ringid, type, description, destringid); |
| 44 | } |