ntp-88/libntp/authkeys.c

26 	keyid_t keyid;		/* key identifier */
27 	int	type;		/* key type */
30 	int keylen;		/* key length */
33 #define	KEY_TRUSTED	0x001	/* this key is trusted */
48 u_long authkeyexpired;		/* key lifetime expirations */
50 u_long authnokey;		/* calls to encrypt with no key */
55  * Storage for free key structures.  We malloc() such things but
64  * The key cache. We cache the last key we looked at here.
66 keyid_t	cache_keyid;		/* key identifier */
67 u_char	*cache_key;		/* key pointer */
68 u_int	cache_keylen;		/* key length */
69 int	cache_type;		/* key type */
87  * auth_findkey - find a key in the hash table
108  * auth_havekey - return one if the key is known
132  * authhavekey - return one and cache the key, if known and trusted.
146 	 * Seach the bin for the key. If found and the key type
148 	 * a key or key type. In this case consider the key missing.
154 			if (sk->type == 0) {
164 	 * If the key is not found, or if it is found but not trusted,
165 	 * the key is not considered found.
178 	 * The key is found and trusted. Initialize the key cache.
181 	cache_type = sk->type;
190  * auth_moremem - get some more free key structures
212  * authtrust - declare a key to be trusted/untrusted
223 	 * Search bin for key; if it does not exist and is untrusted,
281 	 * Here there is not key, but the key is to be trusted. There
282 	 * seems to be a disconnect here. Here we allocate a new key,
283 	 * but do not specify a key type, key or key length.
293 	sk->type = 0;
304  * authistrusted - determine whether a key is trusted
339 	const u_char *key,
346 	 * See if we already have the key.  If so just stick in the
352 			sk->type = keytype;
355 			memcpy(sk->k.MD5_key, key, sk->keylen);
357 			strncpy((char *)sk->k.MD5_key, (const char *)key,
380 	sk->type = keytype;
385 	memcpy(sk->k.MD5_key, key, sk->keylen);
387 	strncpy((char *)sk->k.MD5_key, (const char *)key,
397 		printf("auth_setkey: key %d type %d len %d ", sk->keyid,
398 		    sk->type, sk->keylen);
400 				printf("%c%c", hex[key[j] >> 4],
401 				    hex[key[j] & 0xf]);
480  * Returns length of authenticator field, zero if key not found.
491 	 * A zero key identifier means the sender has not verified
509  * Returns one if authenticator valid, zero if invalid or key not found.
521 	 * A zero key identifier means the sender has not verified