Fix detection of argon2 kernel_accel_new. Ensure user-defined -n value does not exceed available memory; reduce it if necessary. On devices with unified memory (iGPU), only half of the memory is made available.

Improve unit test for -m 8300. In optimized mode, allow longer passwords, domain names, and salts. In both optimized and pure modes, ensure the domain name does not exceed 63 characters.
Fix SNMPv3 unit test to produce passwords of at least 8 characters, as required by RFC 3414.
Fix file permissions in tools/ folder.

src/modules/argon2_common.c

@@ -61,20 +61,17 @@ const char *argon2_module_extra_tuningdb_block (MAYBE_UNUSED const hashconfig_t
 
   const u64 available_mem = MIN (device_param->device_available_mem, (device_param->device_maxmem_alloc * 4)) - (fixed_mem + spill_mem);
 
+  const u32 kernel_accel_max = (device_param->device_host_unified_memory == true) ? (available_mem / 2) / size_per_accel : available_mem / size_per_accel;
+
   u32 kernel_accel_new = device_processors;
 
   if (kernel_accel_user)
   {
-    kernel_accel_new = kernel_accel_user;
+    kernel_accel_new = MIN (kernel_accel_max, kernel_accel_user);
   }
   else
   {
-    if ((device_param->opencl_device_type & CL_DEVICE_TYPE_GPU) && (device_param->device_host_unified_memory == false))
-    {
-      kernel_accel_new = available_mem / size_per_accel;
-
-      kernel_accel_new = MIN (kernel_accel_new, 1024); // 1024 = max supported
-    }
+    kernel_accel_new = kernel_accel_max;
   }
 
   char *new_device_name = hcstrdup (device_param->device_name);

tools/test_modules/m08300.pm

@@ -14,18 +14,19 @@ use Net::DNS::SEC;
 # we need to restrict the pure password length for the test module to 63 bytes,
 # because we can't have any string (including the pass) of over 63 bytes without "."
 
-# sub module_constraints { [[1, 256], [-1, -1], [1, 55], [-1, -1], [-1, -1]] }
-sub module_constraints { [[1, 63], [-1, -1], [1, 55], [-1, -1], [-1, -1]] }
+sub module_constraints { [[1, 63], [1, 63], [1, 32], [1, 24], [1, 44]] }
 
 sub get_random_dnssec_salt
 {
+  my $domain = shift;
+
   my $salt_buf = "";
 
   $salt_buf .= ".";
 
-  $salt_buf .= random_lowercase_string (8);
+  $salt_buf .= $domain;
 
-  $salt_buf .= ".net";
+  #$salt_buf .= ".net";
 
   $salt_buf .= ":";
 
@@ -40,19 +41,9 @@ sub module_generate_hash
   my $salt = shift;
   my $iter = shift // 1;
 
-  if (length $salt == 0)
-  {
-    if (int (rand (10)) == 0)
-    {
-      $salt = ":";
-    }
-    else
-    {
-      $salt = get_random_dnssec_salt ();
-    }
-  }
+  my $combined_salt = get_random_dnssec_salt ($salt);
 
-  my ($domain, $salt_hex) = split (":", $salt);
+  my ($domain, $salt_hex) = split (":", $combined_salt);
 
   my $hashalg = Net::DNS::SEC->digtype ("SHA1");
 

tools/test_modules/m25000.pm

@@ -12,7 +12,7 @@ use Digest::MD5  qw (md5 md5_hex);
 use Digest::SHA  qw (sha1 sha1_hex);
 use Digest::HMAC qw (hmac_hex);
 
-sub module_constraints { [[0, 256], [24, 3000], [-1, -1], [-1, -1], [-1, -1]] }
+sub module_constraints { [[8, 256], [24, 3000], [-1, -1], [-1, -1], [-1, -1]] }
 
 sub module_generate_hash
 {

tools/test_modules/m25100.pm

@@ -11,7 +11,7 @@ use warnings;
 use Digest::MD5  qw (md5 md5_hex);
 use Digest::HMAC qw (hmac_hex);
 
-sub module_constraints { [[0, 256], [24, 3000], [-1, -1], [-1, -1], [-1, -1]] }
+sub module_constraints { [[8, 256], [24, 3000], [-1, -1], [-1, -1], [-1, -1]] }
 
 sub module_generate_hash
 {

tools/test_modules/m25200.pm

@@ -11,7 +11,7 @@ use warnings;
 use Digest::SHA  qw (sha1 sha1_hex);
 use Digest::HMAC qw (hmac_hex);
 
-sub module_constraints { [[0, 256], [24, 3000], [-1, -1], [-1, -1], [-1, -1]] }
+sub module_constraints { [[8, 256], [24, 3000], [-1, -1], [-1, -1], [-1, -1]] }
 
 sub module_generate_hash
 {