* add 'log level <level>' command

* change 'rotate' command to 'log rotate' for consistency

src/commands.c

@@ -38,9 +38,9 @@ struct f2b_cmd_t {
     .tokens = { "status", NULL },
     .help = "Show general stats and jails list",
   },
-  [CMD_ROTATE] = {
-    .argc = 0, .tokenc = 1,
-    .tokens = { "rotate", NULL },
+  [CMD_LOG_ROTATE] = {
+    .argc = 0, .tokenc = 2,
+    .tokens = { "log", "rotate", NULL },
     .help = "Reopen daemon's own log file",
   },
   [CMD_RELOAD] = {
@@ -53,6 +53,11 @@ struct f2b_cmd_t {
     .tokens = { "shutdown", NULL },
     .help = "Gracefully terminate f2b daemon",
   },
+  [CMD_LOG_LEVEL] = {
+    .argc = 1, .tokenc = 3,
+    .tokens = { "log", "level", "<level>",  NULL },
+    .help = "Change maximum level of logged messages",
+  },
   [CMD_JAIL_STATUS] = {
     .argc = 1, .tokenc = 3,
     .tokens = { "jail", "<jailname>", "status", NULL },
@@ -146,7 +151,6 @@ f2b_cmd_parse(char *buf, size_t bufsize, const char *src) {
   if      (strcmp(line, "ping")     == 0) { return CMD_PING;     }
   else if (strcmp(line, "help")     == 0) { return CMD_HELP;     }
   else if (strcmp(line, "status")   == 0) { return CMD_STATUS;   }
-  else if (strcmp(line, "rotate")   == 0) { return CMD_ROTATE;   }
   else if (strcmp(line, "reload")   == 0) { return CMD_RELOAD;   }
   else if (strcmp(line, "shutdown") == 0) { return CMD_SHUTDOWN; }
 
@@ -190,6 +194,14 @@ f2b_cmd_parse(char *buf, size_t bufsize, const char *src) {
     if (tokenc == 4 && strcmp(tokens[2], "filter") == 0 && strcmp(tokens[3], "reload") == 0) {
       return CMD_JAIL_FILTER_RELOAD;
     }
+  } else if (strcmp(line, "log") == 0 && tokenc > 1) {
+    if (tokenc == 2 && strcmp(tokens[1], "rotate") == 0) {
+      return CMD_LOG_ROTATE;
+    }
+    if (tokenc == 3 && strcmp(tokens[1], "level") == 0) {
+      f2b_cmd_append_arg(buf, bufsize, tokens[2]);
+      return CMD_LOG_LEVEL;
+    }
   }
 
   return CMD_NONE;

src/commands.h

@@ -28,9 +28,10 @@ enum f2b_cmd_type {
   CMD_HELP,      /**< show help for commands (used internally by client) */
   CMD_PING = 8,  /**< check connection */
   CMD_STATUS,    /**< show general status of f2b daemon */
-  CMD_ROTATE,    /**< reopen logfile. works only if set `logdest = file` */
+  CMD_LOG_ROTATE,/**< reopen logfile. works only if set `logdest = file` */
   CMD_RELOAD,    /**< reload all jails */
   CMD_SHUTDOWN,  /**< gracefull shutdown */
+  CMD_LOG_LEVEL, /**< change maximum level of logged messages */
   /* jail commands */
   CMD_JAIL_STATUS = 16,    /**< show status of given jail */
   CMD_JAIL_SET,            /**< set parameter of given jail */

src/daemon.c

@@ -95,8 +95,10 @@ f2b_cmsg_process(const f2b_cmsg_t *msg, char *res, size_t ressize) {
     /* nothing to do */
   } else if (msg->type == CMD_RELOAD) {
     state = reconfig;
-  } else if (msg->type == CMD_ROTATE) {
+  } else if (msg->type == CMD_LOG_ROTATE) {
     state = logrotate;
+  } else if (msg->type == CMD_LOG_LEVEL) {
+    f2b_log_set_level(args[0]);
   } else if (msg->type == CMD_SHUTDOWN) {
     state = stop;
   } else if (msg->type == CMD_STATUS) {