nts: rename ntscachedir directive to ntsdumpdir

This makes the naming consistent with the existing dumpdir directive and
the dump command.

conf.c

@@ -223,8 +223,8 @@ static char *leapsec_tz = NULL;
 /* Name of the user to which will be dropped root privileges. */
 static char *user;
 
-/* NTS cache dir, certificates, private key, and port */
-static char *nts_cachedir = NULL;
+/* NTS dump dir, certificates, private key, and port */
+static char *nts_dump_dir = NULL;
 static char *nts_server_cert_file = NULL;
 static char *nts_server_key_file = NULL;
 static int nts_server_port = 11443;
@@ -404,7 +404,7 @@ CNF_Finalise(void)
   Free(mail_user_on_change);
   Free(tempcomp_sensor_file);
   Free(tempcomp_point_file);
-  Free(nts_cachedir);
+  Free(nts_dump_dir);
   Free(nts_server_cert_file);
   Free(nts_server_key_file);
   Free(nts_trusted_cert_file);
@@ -551,8 +551,9 @@ CNF_ParseLine(const char *filename, int number, char *line)
     parse_string(p, &ntp_signd_socket);
   } else if (!strcasecmp(command, "ntstrustedcerts")) {
     parse_string(p, &nts_trusted_cert_file);
-  } else if (!strcasecmp(command, "ntscachedir")) {
-    parse_string(p, &nts_cachedir);
+  } else if (!strcasecmp(command, "ntscachedir") ||
+             !strcasecmp(command, "ntsdumpdir")) {
+    parse_string(p, &nts_dump_dir);
   } else if (!strcasecmp(command, "ntsport")) {
     parse_int(p, &nts_server_port);
   } else if (!strcasecmp(command, "ntsprocesses")) {
@@ -2069,9 +2070,9 @@ CNF_GetHwTsInterface(unsigned int index, CNF_HwTsInterface **iface)
 /* ================================================== */
 
 char *
-CNF_GetNtsCacheDir(void)
+CNF_GetNtsDumpDir(void)
 {
-  return nts_cachedir;
+  return nts_dump_dir;
 }
 
 /* ================================================== */

conf.h

@@ -139,7 +139,7 @@ typedef struct {
 
 extern int CNF_GetHwTsInterface(unsigned int index, CNF_HwTsInterface **iface);
 
-extern char *CNF_GetNtsCacheDir(void);
+extern char *CNF_GetNtsDumpDir(void);
 extern char *CNF_GetNtsServerCertFile(void);
 extern char *CNF_GetNtsServerKeyFile(void);
 extern int CNF_GetNtsServerPort(void);

doc/chrony.conf.adoc

@@ -1390,7 +1390,7 @@ process will be started and all NTS-KE requests will be handled by the main
 This directive specifies the maximum number of concurrent NTS-KE connections
 per process that the NTS server will accept. The default value is 100.
 
-[[ntscachedir]]*ntscachedir* _directory_::
+[[ntsdumpdir]]*ntsdumpdir* _directory_::
 This directive specifies a directory to save the keys which the NTS server uses
 to encrypt NTS cookies in order to prevent a storm of NTS-KE handshakes when
 the server is restarted. By default, the server does not save the keys.

nts_ke_server.c

@@ -447,14 +447,14 @@ save_keys(void)
 {
   char hex_key[SIV_MAX_KEY_LENGTH * 2 + 1];
   int i, index, key_length;
-  char *cachedir;
+  char *dump_dir;
   FILE *f;
 
-  cachedir = CNF_GetNtsCacheDir();
-  if (!cachedir)
+  dump_dir = CNF_GetNtsDumpDir();
+  if (!dump_dir)
     return;
 
-  f = UTI_OpenFile(cachedir, "ntskeys", ".tmp", 'w', 0600);
+  f = UTI_OpenFile(dump_dir, "ntskeys", ".tmp", 'w', 0600);
   if (!f)
     return;
 
@@ -474,7 +474,7 @@ save_keys(void)
 
   fclose(f);
 
-  if (!UTI_RenameTempFile(cachedir, "ntskeys", ".tmp", NULL))
+  if (!UTI_RenameTempFile(dump_dir, "ntskeys", ".tmp", NULL))
     ;
 }
 
@@ -484,15 +484,15 @@ static void
 load_keys(void)
 {
   int i, index, line_length, key_length, n;
-  char *cachedir, line[1024];
+  char *dump_dir, line[1024];
   FILE *f;
   uint32_t id;
 
-  cachedir = CNF_GetNtsCacheDir();
-  if (!cachedir)
+  dump_dir = CNF_GetNtsDumpDir();
+  if (!dump_dir)
     return;
 
-  f = UTI_OpenFile(cachedir, "ntskeys", NULL, 'r', 0);
+  f = UTI_OpenFile(dump_dir, "ntskeys", NULL, 'r', 0);
   if (!f)
     return;
 

test/unit/nts_ke_server.c

@@ -138,7 +138,7 @@ test_unit(void)
   uint32_t sum, sum2;
 
   char conf[][100] = {
-    "ntscachedir .",
+    "ntsdumpdir .",
     "ntsport 0",
     "ntsprocesses 0",
     "ntsserverkey nts_ke.key",