sigpubkey/sigprivkey: Provide a dispose() method

[secnet.git] / secnet.h

diff --git a/secnet.h b/secnet.h
index dd5650d03f98c6451aaa3335e611ef700b3580b5..77ba017bbbdb1bf9b7f86581f7bcb95d35954f3d 100644 (file)
--- a/secnet.h
+++ b/secnet.h
@@ -49,6 +49,7 @@
 /* send at most this many copies; honour at most that many addresses */
 
 #define MAX_NAK_MSG 80
+#define MAX_SIG_KEYS 4
 
 struct hash_if;
 struct comm_if;
@@ -86,6 +87,15 @@ static inline bool_t sigkeyid_equal(const struct sigkeyid *a,
     return !memcmp(a->b, b->b, KEYIDSZ);
 }
 
+#define SERIALSZ 4
+typedef uint32_t serialt;
+static inline int serial_cmp(serialt a, serialt b) {
+    if (a==b) return 0;
+    if (!a) return -1;
+    if (!b) return +1;
+    return b-a <= (serialt)0x7fffffffUL ? +1 : -1;
+}
+
 #define ASSERT(x) do { if (!(x)) { fatal("assertion failed line %d file " \
                                         __FILE__,__LINE__); } } while(0)
 
@@ -441,15 +451,19 @@ struct random_if {
 /* SIGPUBKEY interface */
 
 typedef void sig_sethash_fn(void *st, struct hash_if *hash);
+typedef void sig_dispose_fn(void *st);
+
 typedef bool_t sig_unpick_fn(void *sst, struct buffer_if *msg,
                             struct alg_msg_data *sig);
 typedef bool_t sig_checksig_fn(void *st, uint8_t *data, int32_t datalen,
                               const struct alg_msg_data *sig);
 struct sigpubkey_if {
     void *st;
-    sig_sethash_fn *sethash; /* must be called before check, if non-0 */
+    sig_sethash_fn *sethash; /* must be called before use, if non-0 */
     sig_unpick_fn *unpick;
     sig_checksig_fn *check;
+    const struct hash_if *hash;
+    sig_dispose_fn *dispose;
 };
 
 /* SIGPRIVKEY interface */
@@ -460,8 +474,10 @@ typedef bool_t sig_makesig_fn(void *st, uint8_t *data, int32_t datalen,
                              struct buffer_if *msg);
 struct sigprivkey_if {
     void *st;
-    sig_sethash_fn *sethash; /* must be called before sign, if non-0 */
+    sig_sethash_fn *sethash; /* must be called before use, if non-0 */
     sig_makesig_fn *sign;
+    const struct hash_if *hash;
+    sig_dispose_fn *dispose;
 };
 
 /* COMM interface */