1 /* rxgk.h - External interfaces for RXGK */
3 * Copyright (C) 2013, 2014 by the Massachusetts Institute of Technology.
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33 * External interfaces for RXGK.
36 #ifndef OPENAFS_RXGK_H
37 #define OPENAFS_RXGK_H
39 /* Pull in the com_err table */
40 #include <rx/rxgk_errs.h>
42 /* Pull in the protocol description */
43 #include <rx/rxgk_int.h>
45 /* RX-internal headers we depend on. */
46 #include <rx/rx_opaque.h>
48 /* rxgkTime is defined in rxgk_int.xg. rxgkTime values are unix timestamps, but
49 * in 100-nanosecond units. */
51 /* Helpers to avoid having to count zeros. */
52 static_inline rxgkTime secondsToRxgkTime(afs_uint64 seconds) {
53 return seconds * (rxgkTime)10000000;
55 static_inline afs_uint64 rxgkTimeToSeconds(rxgkTime atime) {
56 return (afs_uint64)atime / 10000000;
59 /** Get the current timestamp as an rxgkTime. */
60 static_inline rxgkTime RXGK_NOW(void)
64 return secondsToRxgkTime(tv.tv_sec) + (rxgkTime)tv.tv_usec * 10;
67 /* rxgk_key is an opaque type to wrap our RFC3961 implementation's concept
68 * of a key. It has (at least) the keyblock and length, and enctype. */
69 typedef struct rxgk_key_s * rxgk_key;
71 typedef afs_int32 (*rxgk_getkey_func)(void *rock, afs_int32 *kvno,
72 afs_int32 *enctype, rxgk_key *key);
74 struct rx_securityClass * rxgk_NewServerSecurityObject(void *getkey_rock,
75 rxgk_getkey_func getkey);
77 struct rx_securityClass *rxgk_NewClientSecurityObject(RXGK_Level level,
83 /* rxgk_crypto_IMPL.c (currently rfc3961 is the only IMPL) */
84 afs_int32 rxgk_make_key(rxgk_key *key_out, void *raw_key, afs_uint32 length,
85 afs_int32 enctype) AFS_NONNULL();
86 afs_int32 rxgk_copy_key(rxgk_key key_in, rxgk_key *key_out) AFS_NONNULL();
87 afs_int32 rxgk_random_key(afs_int32 *enctype, rxgk_key *key_out) AFS_NONNULL();
88 void rxgk_release_key(rxgk_key *key) AFS_NONNULL();
89 afs_int32 rxgk_mic_length(rxgk_key key, size_t *out) AFS_NONNULL();
90 afs_int32 rxgk_mic_in_key(rxgk_key key, afs_int32 usage, RXGK_Data *in,
91 RXGK_Data *out) AFS_NONNULL();
92 afs_int32 rxgk_check_mic_in_key(rxgk_key key, afs_int32 usage, RXGK_Data *in,
93 RXGK_Data *mic) AFS_NONNULL();
94 afs_int32 rxgk_encrypt_in_key(rxgk_key key, afs_int32 usage, RXGK_Data *in,
95 RXGK_Data *out) AFS_NONNULL();
96 afs_int32 rxgk_decrypt_in_key(rxgk_key key, afs_int32 usage, RXGK_Data *in,
97 RXGK_Data *out) AFS_NONNULL();
98 afs_int32 rxgk_derive_tk(rxgk_key *tk, rxgk_key k0, afs_uint32 epoch,
99 afs_uint32 cid, rxgkTime start_time,
100 afs_uint32 key_number) AFS_NONNULL();
101 afs_int32 rxgk_cipher_expansion(rxgk_key k0, afs_uint32 *len_out) AFS_NONNULL();
102 afs_int32 rxgk_nonce(RXGK_Data *nonce, afs_uint32 len) AFS_NONNULL();
105 afs_int32 rxgk_make_token(struct rx_opaque *out, RXGK_TokenInfo *info,
106 struct rx_opaque *k0, PrAuthName *identities,
107 int nids, rxgk_key key, afs_int32 kvno,
108 afs_int32 enctype) AFS_NONNULL((1,2,3,6));
109 afs_int32 rxgk_print_token(struct rx_opaque *out, RXGK_TokenInfo *input_info,
110 struct rx_opaque *k0, rxgk_key key, afs_int32 kvno,
111 afs_int32 enctype) AFS_NONNULL();
112 afs_int32 rxgk_print_token_and_key(struct rx_opaque *out,
113 RXGK_TokenInfo *input_info, rxgk_key key,
114 afs_int32 kvno, afs_int32 enctype,
115 rxgk_key *k0_out) AFS_NONNULL();
117 #endif /* OPENAFS_RXGK_H */