1 files changed, 143 insertions, 0 deletions
diff --git a/src/posttls-finger/tlsmgrmem.c b/src/posttls-finger/tlsmgrmem.c
new file mode 100644
index 0000000..bfbc3a1
--- /dev/null
+++ b/src/posttls-finger/tlsmgrmem.c
@@ -0,0 +1,143 @@
+/*++
+/* NAME
+/*	tlsmgrmem 3
+/* SUMMARY
+/*	Memory-based TLS manager interface for tlsfinger(1).
+/* SYNOPSIS
+/*	#ifdef	USE_TLS
+/*	#include <tlsmgrmem.h>
+/*
+/*	void	tlsmgrmem_disable()
+/*
+/*	void	tlsmgrmem_status(enable, count, hits)
+/*	int	*enable;
+/*	int	*count;
+/*	int	*hits;
+/*
+/*	void	tlsmgrmem_flush()
+/*	#endif
+/* DESCRIPTION
+/*	tlsmgrmem_disable() disables the in-memory TLS session cache.
+/*
+/*	tlsmgrmem_status() reports whether the cache is enabled, the
+/*	number of entries in the cache, and the number of cache hits.
+/*	If any of the return pointers are null, that item is not reported.
+/*
+/*	tlsmgrmem_flush() flushes any cached data and frees the cache.
+/* LICENSE
+/* .ad
+/* .fi
+/*	The Secure Mailer license must be distributed with this software.
+/* AUTHOR(S)
+/*	Wietse Venema
+/*	IBM T.J. Watson Research
+/*	P.O. Box 704
+/*	Yorktown Heights, NY 10598, USA
+/*
+/*	Viktor Dukhovni
+/*--*/
+
+#include <sys_defs.h>
+
+#ifdef USE_TLS
+#include <htable.h>
+#include <vstring.h>
+#include <tls_mgr.h>
+
+#include "tlsmgrmem.h"
+
+static HTABLE *tls_cache;
+static int cache_enabled = 1;
+static int cache_count;
+static int cache_hits;
+typedef void (*free_func) (void *);
+static free_func free_value = (free_func) vstring_free;
+
+void    tlsmgrmem_disable(void)
+{
+    cache_enabled = 0;
+}
+
+void    tlsmgrmem_flush(void)
+{
+    if (!tls_cache)
+	return;
+    htable_free(tls_cache, free_value);
+}
+
+void    tlsmgrmem_status(int *enabled, int *count, int *hits)
+{
+    if (enabled)
+	*enabled = cache_enabled;
+    if (count)
+	*count = cache_count;
+    if (hits)
+	*hits = cache_hits;
+}
+
+/* tls_mgr_* - Local cache and stubs that do not talk to the TLS manager */
+
+int     tls_mgr_seed(VSTRING *buf, int len)
+{
+    return (TLS_MGR_STAT_OK);
+}
+
+int     tls_mgr_policy(const char *unused_type, int *cachable, int *timeout)
+{
+    if (cache_enabled && tls_cache == 0)
+	tls_cache = htable_create(1);
+    *cachable = cache_enabled;
+    *timeout = TLS_SESSION_LIFEMIN;
+    return (TLS_MGR_STAT_OK);
+}
+
+int     tls_mgr_lookup(const char *unused_type, const char *key, VSTRING *buf)
+{
+    VSTRING *s;
+
+    if (tls_cache == 0)
+	return TLS_MGR_STAT_ERR;
+
+    if ((s = (VSTRING *) htable_find(tls_cache, key)) == 0)
+	return TLS_MGR_STAT_ERR;
+
+    vstring_memcpy(buf, vstring_str(s), VSTRING_LEN(s));
+
+    ++cache_hits;
+    return (TLS_MGR_STAT_OK);
+}
+
+int     tls_mgr_update(const char *unused_type, const char *key,
+		               const char *buf, ssize_t len)
+{
+    HTABLE_INFO *ent;
+    VSTRING *s;
+
+    if (tls_cache == 0)
+	return TLS_MGR_STAT_ERR;
+
+    if ((ent = htable_locate(tls_cache, key)) == 0) {
+	s = vstring_alloc(len);
+	ent = htable_enter(tls_cache, key, (void *) s);
+    } else {
+	s = (VSTRING *) ent->value;
+    }
+    vstring_memcpy(s, buf, len);
+
+    ++cache_count;
+    return (TLS_MGR_STAT_OK);
+}
+
+int     tls_mgr_delete(const char *unused_type, const char *key)
+{
+    if (tls_cache == 0)
+	return TLS_MGR_STAT_ERR;
+
+    if (htable_locate(tls_cache, key)) {
+	htable_delete(tls_cache, key, free_value);
+	--cache_count;
+    }
+    return (TLS_MGR_STAT_OK);
+}
+
+#endif