Rename config settings for consistency.

README.md

@@ -34,27 +34,27 @@ As of this time, I am not aware of any NIC manufacturers that will be able to of
 ## Configuration File Options
 ### Main
 * `interface` => The interface for the XDP program to attach to.
-* `updatetime` => How often to update the config and filtering rules. Leaving this at 0 disables auto-updating.
-* `nostats` => If true, no accepted/blocked packet statistics will be displayed in `stdout`.
+* `update_time` => How often to update the config and filtering rules. Leaving this at 0 disables auto-updating.
+* `no_stats` => If true, no accepted/blocked packet statistics will be displayed in `stdout`.
 * `stdout_update_time` => The amount of time in milliseconds to update `stdout` with counters. Default is set to `1000` (one second).
 
 ### Filters
 Config option `filters` is an array. Each filter includes the following options:
 
 * `enabled` => If true, this rule is enabled.
 * `action` => What action to perform against the packet if matched. 0 = Block. 1 = Allow.
-* `srcip` => The source IP address the packet must match (e.g. 10.50.0.3).
-* `dstip` => The destination IP address the packet must match (e.g. 10.50.0.4).
-* `srcip6` => The source IPv6 address the packet must match (e.g. fe80::18c4:dfff:fe70:d8a6).
-* `dstip6` => The destination IPv6 address the packet must match (e.g. fe80::ac21:14ff:fe4b:3a6d).
+* `src_ip` => The source IP address the packet must match (e.g. 10.50.0.3).
+* `dst_ip` => The destination IP address the packet must match (e.g. 10.50.0.4).
+* `src_ip6` => The source IPv6 address the packet must match (e.g. fe80::18c4:dfff:fe70:d8a6).
+* `dst_ip6` => The destination IPv6 address the packet must match (e.g. fe80::ac21:14ff:fe4b:3a6d).
 * `min_ttl` => The minimum TTL (time to live) the packet must match.
 * `max_ttl` => The maximum TTL (time to live) the packet must match.
 * `max_len` => The maximum packet length the packet must match. This includes the entire frame (ethernet header, IP header, L4 header, and data).
 * `min_len` => The minimum packet length the packet must match. This includes the entire frame (ethernet header, IP header, L4 header, and data).
 * `tos` => The TOS (type of service) the packet must match.
 * `pps` => The maximum packets per second a source IP can send before matching.
 * `bps` => The maximum amount of bytes per second a source IP can send before matching.
-* `blocktime` => The time in seconds to block the source IP if the rule matches and the action is block (0). Default value is `1`.
+* `block_time` => The time in seconds to block the source IP if the rule matches and the action is block (0). Default value is `1`.
 
 #### TCP Options
 TCP options exist in the main filter array and start with `tcp_`. Please see below.
@@ -94,7 +94,7 @@ Here's an example of a config:
 
 ```squidconf
 interface = "ens18";
-updatetime = 15;
+update_time = 15;
 
 filters = (
     {
@@ -122,7 +122,7 @@ filters = (
     {
         enabled = true,
         action = 0,
-        srcip = "10.50.0.4"
+        src_ip = "10.50.0.4"
     }
 );
 ```

src/config.c

@@ -159,7 +159,7 @@ int readcfg(struct config *cfg)
     // Get auto update time.
     int updatetime;
 
-    if (config_lookup_int(&conf, "updatetime", &updatetime) == CONFIG_TRUE)
+    if (config_lookup_int(&conf, "update_time", &updatetime) == CONFIG_TRUE)
     {
         cfg->updatetime = updatetime;
     }
@@ -175,7 +175,7 @@ int readcfg(struct config *cfg)
     // Get no stats.
     int nostats;
 
-    if (config_lookup_bool(&conf, "nostats", &nostats) == CONFIG_TRUE)
+    if (config_lookup_bool(&conf, "no_stats", &nostats) == CONFIG_TRUE)
     {
         cfg->nostats = nostats;
     }
@@ -230,23 +230,23 @@ int readcfg(struct config *cfg)
         // Source IP (not required).
         const char *sip;
 
-        if (config_setting_lookup_string(filter, "srcip", &sip))
+        if (config_setting_lookup_string(filter, "src_ip", &sip))
         {
             cfg->filters[i].srcip = inet_addr(sip);
         }
 
         // Destination IP (not required).
         const char *dip;
 
-        if (config_setting_lookup_string(filter, "dstip", &dip))
+        if (config_setting_lookup_string(filter, "dst_ip", &dip))
         {
             cfg->filters[i].dstip = inet_addr(dip);
         }
 
         // Source IP (IPv6) (not required).
         const char *sip6;
 
-        if (config_setting_lookup_string(filter, "srcip6", &sip6))
+        if (config_setting_lookup_string(filter, "src_ip6", &sip6))
         {
             struct in6_addr in;
 
@@ -261,7 +261,7 @@ int readcfg(struct config *cfg)
         // Destination IP (IPv6) (not required).
         const char *dip6;
 
-        if (config_setting_lookup_string(filter, "dstip6", &dip6))
+        if (config_setting_lookup_string(filter, "dst_ip6", &dip6))
         {
             struct in6_addr in;
 
@@ -339,7 +339,7 @@ int readcfg(struct config *cfg)
         // Block time (default 1).
         long long blocktime;
 
-        if (config_setting_lookup_int64(filter, "blocktime", &blocktime))
+        if (config_setting_lookup_int64(filter, "block_time", &blocktime))
         {
             cfg->filters[i].blocktime = blocktime;
         }

src/xdpfw.c

@@ -472,9 +472,10 @@ int main(int argc, char *argv[])
 
     // Create last updated variable.
     time_t lastupdatecheck = time(NULL);
-    time_t statslastupdated = time(NULL);
     time_t lastupdated = time(NULL);
 
+    unsigned int sleep_time = cfg.stdout_update_time * 1000;
+
     while (cont)
     {
         // Get current time.
@@ -510,7 +511,7 @@ int main(int argc, char *argv[])
         }
 
         // Update stats.
-        if ((curTime - statslastupdated) > 2 && !cfg.nostats)
+        if (!cfg.nostats)
         {
             __u32 key = 0;
             struct stats stats[MAX_CPUS];
@@ -546,11 +547,9 @@ int main(int argc, char *argv[])
 
             fflush(stdout);
             fprintf(stdout, "\rAllowed: %llu | Dropped: %llu | Passed: %llu", allowed, dropped, passed);
-
-            statslastupdated = time(NULL);
         }
 
-        usleep(500);
+        usleep(sleep_time);
     }
 
     // Detach XDP program.

xdpfw.conf.example

@@ -1,5 +1,5 @@
 interface = "ens18";
-updatetime = 15;
+update_time = 15;
 stdout_update_time = 1000;
 
 filters = (