PCAP_LOOP_SLEEP bug fix to 1/10th of a second

[server] Updated PCAP_LOOP_SLEEP default to 1/10th of a second (in
microseconds).  This was supposed to be the default anyway, but C
Anthony Risinger reported a bug where fwknopd was consuming more
resources than necessary, and the cause was PCAP_LOOP_SLEEP set by
default to 1/100th of a second - this has been fixed.

server/config_init.h

@@ -36,7 +36,7 @@
 
 /* For integer variable range checking
 */
-#define RCHK_MAX_PCAP_LOOP_SLEEP            100000  /* microseconds */
+#define RCHK_MAX_PCAP_LOOP_SLEEP            10000000  /* microseconds, 10 seconds */
 #define RCHK_MAX_SPA_PACKET_AGE             100000  /* seconds, can disable */
 #define RCHK_MAX_SNIFF_BYTES                1514
 #define RCHK_MAX_TCPSERV_PORT               65535

server/fwknopd.conf

@@ -74,8 +74,8 @@
 #PCAP_DISPATCH_COUNT            0;
 
 # Sets the number of microseconds to passed as an argument to usleep() in
-# the pcap loop.  The default is 10000, or 1/10th of a second.
-#PCAP_LOOP_SLEEP                10000;
+# the pcap loop.  The default is 100000 microseconds, or 1/10th of a second.
+#PCAP_LOOP_SLEEP                100000;
 
 # Allow SPA clients to request access to services through an iptables
 # firewall instead of just to it (i.e. access through the FWKNOP_FORWARD

server/fwknopd_common.h

@@ -86,7 +86,7 @@
 #define DEF_ENABLE_PCAP_PROMISC         "N"
 #define DEF_PCAP_FILTER                 "udp port 62201"
 #define DEF_PCAP_DISPATCH_COUNT         "0"
-#define DEF_PCAP_LOOP_SLEEP             "10000" /* a tenth of a second */
+#define DEF_PCAP_LOOP_SLEEP             "100000" /* a tenth of a second (in microseconds) */
 #define DEF_ENABLE_SPA_PACKET_AGING     "Y"
 #define DEF_MAX_SPA_PACKET_AGE          "120"
 #define DEF_ENABLE_DIGEST_PERSISTENCE   "Y"