start merging Jonathan's IPv6 patches (01-defines, 02-ipv6-cli)
[l2tpns.git] / cli.c
diff --git a/cli.c b/cli.c
index 22c592a..e90b2a6 100644 (file)
--- a/cli.c
+++ b/cli.c
@@ -2,10 +2,11 @@
 // vim: sw=8 ts=8
 
 char const *cvs_name = "$Name:  $";
-char const *cvs_id_cli = "$Id: cli.c,v 1.26 2004/11/11 05:38:01 bodea Exp $";
+char const *cvs_id_cli = "$Id: cli.c,v 1.44 2004/12/18 01:20:05 bodea Exp $";
 
 #include <stdio.h>
 #include <stdarg.h>
+#include <unistd.h>
 #include <sys/file.h>
 #include <sys/stat.h>
 #include <syslog.h>
@@ -19,9 +20,10 @@ char const *cvs_id_cli = "$Id: cli.c,v 1.26 2004/11/11 05:38:01 bodea Exp $";
 #include <sys/socket.h>
 #include <sys/types.h>
 #include <signal.h>
-#include <unistd.h>
 #include <dlfcn.h>
+#include <netdb.h>
 #include <libcli.h>
+
 #include "l2tpns.h"
 #include "util.h"
 #include "cluster.h"
@@ -29,7 +31,6 @@ char const *cvs_id_cli = "$Id: cli.c,v 1.26 2004/11/11 05:38:01 bodea Exp $";
 #include "ll.h"
 #ifdef BGP
 #include "bgp.h"
-#include <netdb.h>
 #endif
 
 extern tunnelt *tunnel;
@@ -37,18 +38,18 @@ extern sessiont *session;
 extern radiust *radius;
 extern ippoolt *ip_address_pool;
 extern struct Tstats *_statistics;
-struct cli_def *cli = NULL;
-int cli_quit = 0;
-extern struct configt *config;
-extern struct config_descriptt config_values[];
+static struct cli_def *cli = NULL;
+extern configt *config;
+extern config_descriptt config_values[];
 #ifdef RINGBUFFER
 extern struct Tringbuffer *ringbuffer;
 #endif
 extern struct cli_session_actions *cli_session_actions;
 extern struct cli_tunnel_actions *cli_tunnel_actions;
 extern tbft *filter_list;
+extern ip_filtert *ip_filters;
 
-char *debug_levels[] = {
+static char *debug_levels[] = {
        "CRIT",
        "ERROR",
        "WARN",
@@ -67,10 +68,9 @@ struct
        char data;
 } debug_flags;
 
-int debug_session;
-int debug_tunnel;
-int debug_rb_tail;
-FILE *save_config_fh;
+static int debug_session;
+static int debug_tunnel;
+static int debug_rb_tail;
 
 static int cmd_show_session(struct cli_def *cli, char *command, char **argv, int argc);
 static int cmd_show_tunnels(struct cli_def *cli, char *command, char **argv, int argc);
@@ -98,6 +98,7 @@ static int cmd_set(struct cli_def *cli, char *command, char **argv, int argc);
 static int cmd_load_plugin(struct cli_def *cli, char *command, char **argv, int argc);
 static int cmd_remove_plugin(struct cli_def *cli, char *command, char **argv, int argc);
 static int cmd_uptime(struct cli_def *cli, char *command, char **argv, int argc);
+
 static int regular_stuff(struct cli_def *cli);
 static void parsemac(char *string, char mac[6]);
 
@@ -112,6 +113,17 @@ static int cmd_no_suspend_bgp(struct cli_def *cli, char *command, char **argv, i
 static int cmd_restart_bgp(struct cli_def *cli, char *command, char **argv, int argc);
 #endif /* BGP */
 
+#define MODE_CONFIG_NACL 9
+static int cmd_ip_access_list(struct cli_def *cli, char *command, char **argv, int argc);
+static int cmd_no_ip_access_list(struct cli_def *cli, char *command, char **argv, int argc);
+static int cmd_ip_access_list_rule(struct cli_def *cli, char *command, char **argv, int argc);
+static int cmd_filter(struct cli_def *cli, char *command, char **argv, int argc);
+static int cmd_no_filter(struct cli_def *cli, char *command, char **argv, int argc);
+static int cmd_show_access_list(struct cli_def *cli, char *command, char **argv, int argc);
+
+/* match if b is a substr of a */
+#define MATCH(a,b) (!strncmp((a), (b), strlen(b)))
+
 void init_cli(char *hostname)
 {
        FILE *f;
@@ -144,6 +156,7 @@ void init_cli(char *hostname)
        cli_register_command(cli, c, "tunnels", cmd_show_tunnels, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "Show a list of tunnels or details for a single tunnel");
        cli_register_command(cli, c, "users", cmd_show_users, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "Show a list of all connected users or details of selected user");
        cli_register_command(cli, c, "version", cmd_show_version, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "Show currently running software version");
+       cli_register_command(cli, c, "access-list", cmd_show_access_list, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "Show named access-list");
 
        c2 = cli_register_command(cli, c, "histogram", NULL, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, NULL);
        cli_register_command(cli, c2, "idle", cmd_show_hist_idle, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "Show histogram of session idle times");
@@ -162,8 +175,9 @@ void init_cli(char *hostname)
        cli_register_command(cli, c, "memory", cmd_write_memory, PRIVILEGE_PRIVILEGED, MODE_EXEC, "Save the running config to flash");
        cli_register_command(cli, c, "terminal", cmd_show_run, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "Show the running config");
 
-       cli_register_command(cli, NULL, "snoop", cmd_snoop, PRIVILEGE_PRIVILEGED, MODE_EXEC, "Temporarily enable interception for a user");
-       cli_register_command(cli, NULL, "throttle", cmd_throttle, PRIVILEGE_PRIVILEGED, MODE_EXEC, "Temporarily enable throttling for a user");
+       cli_register_command(cli, NULL, "snoop", cmd_snoop, PRIVILEGE_PRIVILEGED, MODE_EXEC, "Enable interception of a session");
+       cli_register_command(cli, NULL, "throttle", cmd_throttle, PRIVILEGE_PRIVILEGED, MODE_EXEC, "Enable throttling of a session");
+       cli_register_command(cli, NULL, "filter", cmd_filter, PRIVILEGE_PRIVILEGED, MODE_EXEC, "Add filtering to a session");
        cli_register_command(cli, NULL, "debug", cmd_debug, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "Set the level of logging that is shown on the console");
 
 #ifdef BGP
@@ -172,8 +186,9 @@ void init_cli(char *hostname)
 #endif /* BGP */
 
        c = cli_register_command(cli, NULL, "no", NULL, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, NULL);
-       cli_register_command(cli, c, "snoop", cmd_no_snoop, PRIVILEGE_PRIVILEGED, MODE_EXEC, "Temporarily disable interception for a user");
-       cli_register_command(cli, c, "throttle", cmd_no_throttle, PRIVILEGE_PRIVILEGED, MODE_EXEC, "Temporarily disable throttling for a user");
+       cli_register_command(cli, c, "snoop", cmd_no_snoop, PRIVILEGE_PRIVILEGED, MODE_EXEC, "Disable interception of a session");
+       cli_register_command(cli, c, "throttle", cmd_no_throttle, PRIVILEGE_PRIVILEGED, MODE_EXEC, "Disable throttling of a session");
+       cli_register_command(cli, c, "filter", cmd_no_filter, PRIVILEGE_PRIVILEGED, MODE_EXEC, "Remove filtering from a session");
        cli_register_command(cli, c, "debug", cmd_no_debug, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "Turn off logging of a certain level of debugging");
 
 #ifdef BGP
@@ -205,12 +220,22 @@ void init_cli(char *hostname)
 
        cli_register_command(cli, NULL, "set", cmd_set, PRIVILEGE_PRIVILEGED, MODE_CONFIG, "Set a configuration variable");
 
+       c = cli_register_command(cli, NULL, "ip", NULL, PRIVILEGE_PRIVILEGED, MODE_CONFIG, NULL);
+       cli_register_command(cli, c, "access-list", cmd_ip_access_list, PRIVILEGE_PRIVILEGED, MODE_CONFIG, "Add named access-list");
+
+       cli_register_command(cli, NULL, "permit", cmd_ip_access_list_rule, PRIVILEGE_PRIVILEGED, MODE_CONFIG_NACL, "Permit rule");
+       cli_register_command(cli, NULL, "deny", cmd_ip_access_list_rule, PRIVILEGE_PRIVILEGED, MODE_CONFIG_NACL, "Deny rule");
+
+       c = cli_register_command(cli, NULL, "no", NULL, PRIVILEGE_UNPRIVILEGED, MODE_CONFIG, NULL);
+       c2 = cli_register_command(cli, c, "ip", NULL, PRIVILEGE_PRIVILEGED, MODE_CONFIG, NULL);
+       cli_register_command(cli, c2, "access-list", cmd_no_ip_access_list, PRIVILEGE_PRIVILEGED, MODE_CONFIG, "Remove named access-list");
+
        // Enable regular processing
        cli_regular(cli, regular_stuff);
 
        if (!(f = fopen(CLIUSERS, "r")))
        {
-               LOG(0, 0, 0, 0, "WARNING! No users specified. Command-line access is open to all\n");
+               LOG(0, 0, 0, "WARNING! No users specified. Command-line access is open to all\n");
        }
        else
        {
@@ -226,12 +251,12 @@ void init_cli(char *hostname)
                        if (!strcmp(buf, "enable"))
                        {
                                cli_allow_enable(cli, p);
-                               LOG(3, 0, 0, 0, "Setting enable password\n");
+                               LOG(3, 0, 0, "Setting enable password\n");
                        }
                        else
                        {
                                cli_allow_user(cli, buf, p);
-                               LOG(3, 0, 0, 0, "Allowing user %s to connect to the CLI\n", buf);
+                               LOG(3, 0, 0, "Allowing user %s to connect to the CLI\n", buf);
                        }
                }
                fclose(f);
@@ -250,7 +275,7 @@ void init_cli(char *hostname)
        addr.sin_port = htons(23);
        if (bind(clifd, (void *) &addr, sizeof(addr)) < 0)
        {
-               LOG(0, 0, 0, 0, "Error listening on cli port 23: %s\n", strerror(errno));
+               LOG(0, 0, 0, "Error listening on cli port 23: %s\n", strerror(errno));
                return;
        }
        listen(clifd, 10);
@@ -265,18 +290,18 @@ void cli_do(int sockfd)
        if (fork_and_close()) return;
        if (getpeername(sockfd, (struct sockaddr *)&addr, &l) == 0)
        {
-               LOG(3, 0, 0, 0, "Accepted connection to CLI from %s\n", inet_toa(addr.sin_addr.s_addr));
+               LOG(3, 0, 0, "Accepted connection to CLI from %s\n", fmtaddr(addr.sin_addr.s_addr, 0));
                require_auth = addr.sin_addr.s_addr != inet_addr("127.0.0.1");
        }
        else
-               LOG(0, 0, 0, 0, "getpeername() failed on cli socket. Requiring authentication: %s\n", strerror(errno));
+               LOG(0, 0, 0, "getpeername() failed on cli socket.  Requiring authentication: %s\n", strerror(errno));
 
        if (require_auth)
        {
-               LOG(3, 0, 0, 0, "CLI is remote, requiring authentication\n");
+               LOG(3, 0, 0, "CLI is remote, requiring authentication\n");
                if (!cli->users) /* paranoia */
                {
-                       LOG(0, 0, 0, 0, "No users for remote authentication!  Exiting CLI\n");
+                       LOG(0, 0, 0, "No users for remote authentication!  Exiting CLI\n");
                        exit(0);
                }
        }
@@ -297,18 +322,18 @@ void cli_do(int sockfd)
        cli_loop(cli, sockfd);
 
        close(sockfd);
-       LOG(3, 0, 0, 0, "Closed CLI connection from %s\n", inet_toa(addr.sin_addr.s_addr));
+       LOG(3, 0, 0, "Closed CLI connection from %s\n", fmtaddr(addr.sin_addr.s_addr, 0));
        exit(0);
 }
 
-void cli_print_log(struct cli_def *cli, char *string)
+static void cli_print_log(struct cli_def *cli, char *string)
 {
-       LOG(3, 0, 0, 0, "%s\n", string);
+       LOG(3, 0, 0, "%s\n", string);
 }
 
 void cli_do_file(FILE *fh)
 {
-       LOG(3, 0, 0, 0, "Reading configuration file\n");
+       LOG(3, 0, 0, "Reading configuration file\n");
        cli_print_callback(cli, cli_print_log);
        cli_file(cli, fh, PRIVILEGE_PRIVILEGED, MODE_CONFIG);
        cli_print_callback(cli, NULL);
@@ -377,19 +402,23 @@ static int cmd_show_session(struct cli_def *cli, char *command, char **argv, int
                        cli_print(cli, "\tCalling Num:\t%s", session[s].calling);
                        cli_print(cli, "\tCalled Num:\t%s", session[s].called);
                        cli_print(cli, "\tTunnel ID:\t%d", session[s].tunnel);
-                       cli_print(cli, "\tIP address:\t%s", inet_toa(htonl(session[s].ip)));
+                       cli_print(cli, "\tIP address:\t%s", fmtaddr(htonl(session[s].ip), 0));
                        cli_print(cli, "\tUnique SID:\t%lu", session[s].unique_id);
                        cli_print(cli, "\tIdle time:\t%u seconds", abs(time_now - session[s].last_packet));
                        cli_print(cli, "\tNext Recv:\t%u", session[s].nr);
                        cli_print(cli, "\tNext Send:\t%u", session[s].ns);
-                       cli_print(cli, "\tBytes In/Out:\t%lu/%lu", (unsigned long)session[s].total_cout, (unsigned long)session[s].total_cin);
-                       cli_print(cli, "\tPkts In/Out:\t%lu/%lu", (unsigned long)session[s].pout, (unsigned long)session[s].pin);
+                       cli_print(cli, "\tBytes In/Out:\t%u/%u", session[s].total_cout, session[s].total_cin);
+                       cli_print(cli, "\tPkts In/Out:\t%u/%u", session[s].pout, session[s].pin);
                        cli_print(cli, "\tMRU:\t\t%d", session[s].mru);
                        cli_print(cli, "\tRadius Session:\t%u", session[s].radius);
-                       cli_print(cli, "\tRx Speed:\t%lu", session[s].rx_connect_speed);
-                       cli_print(cli, "\tTx Speed:\t%lu", session[s].tx_connect_speed);
+                       cli_print(cli, "\tRx Speed:\t%u", session[s].rx_connect_speed);
+                       cli_print(cli, "\tTx Speed:\t%u", session[s].tx_connect_speed);
+                       if (session[s].filter_in && session[s].filter_in <= MAXFILTER)
+                               cli_print(cli, "\tFilter in:\t%u (%s)", session[s].filter_in, ip_filters[session[s].filter_in - 1].name);
+                       if (session[s].filter_out && session[s].filter_out <= MAXFILTER)
+                               cli_print(cli, "\tFilter out:\t%u (%s)", session[s].filter_out, ip_filters[session[s].filter_out - 1].name);
                        if (session[s].snoop_ip && session[s].snoop_port)
-                               cli_print(cli, "\tIntercepted:\t%s:%d", inet_toa(session[s].snoop_ip), session[s] .snoop_port);
+                               cli_print(cli, "\tIntercepted:\t%s:%d", fmtaddr(session[s].snoop_ip, 0), session[s] .snoop_port);
                        else
                                cli_print(cli, "\tIntercepted:\tno");
 
@@ -463,15 +492,12 @@ static int cmd_show_session(struct cli_def *cli, char *command, char **argv, int
 
        for (i = 1; i < MAXSESSION; i++)
        {
-               char *userip, *tunnelip;
                if (!session[i].opened) continue;
-               userip = strdup(inet_toa(htonl(session[i].ip)));
-               tunnelip = strdup(inet_toa(htonl(tunnel[ session[i].tunnel ].ip)));
                cli_print(cli, "%5d %4d %-32s %-15s %s %s %s %10u %10lu %10lu %4u %-15s %s",
                                i,
                                session[i].tunnel,
                                session[i].user[0] ? session[i].user : "*",
-                               userip,
+                               fmtaddr(htonl(session[i].ip), 0),
                                (session[i].snoop_ip && session[i].snoop_port) ? "Y" : "N",
                                (session[i].throttle_in || session[i].throttle_out) ? "Y" : "N",
                                (session[i].walled_garden) ? "Y" : "N",
@@ -479,10 +505,8 @@ static int cmd_show_session(struct cli_def *cli, char *command, char **argv, int
                                (unsigned long)session[i].total_cout,
                                (unsigned long)session[i].total_cin,
                                abs(time_now - (session[i].last_packet ? session[i].last_packet : time_now)),
-                               tunnelip,
+                               fmtaddr(htonl(tunnel[ session[i].tunnel ].ip), 1),
                                session[i].calling[0] ? session[i].calling : "*");
-               if (userip) free(userip);
-               if (tunnelip) free(tunnelip);
        }
        return CLI_OK;
 }
@@ -533,7 +557,7 @@ static int cmd_show_tunnels(struct cli_def *cli, char *command, char **argv, int
                                cli_print(cli, "\r\nTunnel %d:", t);
                                cli_print(cli, "\tState:\t\t%s", states[tunnel[t].state]);
                                cli_print(cli, "\tHostname:\t%s", tunnel[t].hostname[0] ? tunnel[t].hostname : "(none)");
-                               cli_print(cli, "\tRemote IP:\t%s", inet_toa(htonl(tunnel[t].ip)));
+                               cli_print(cli, "\tRemote IP:\t%s", fmtaddr(htonl(tunnel[t].ip), 0));
                                cli_print(cli, "\tRemote Port:\t%d", tunnel[t].port);
                                cli_print(cli, "\tRx Window:\t%u", tunnel[t].window);
                                cli_print(cli, "\tNext Recv:\t%u", tunnel[t].nr);
@@ -568,7 +592,7 @@ static int cmd_show_tunnels(struct cli_def *cli, char *command, char **argv, int
                cli_print(cli, "%4d %20s %20s %6s %6d",
                                i,
                                *tunnel[i].hostname ? tunnel[i].hostname : "(null)",
-                               inet_toa(htonl(tunnel[i].ip)),
+                               fmtaddr(htonl(tunnel[i].ip), 0),
                                states[tunnel[i].state],
                                sessions);
        }
@@ -623,23 +647,22 @@ static int cmd_show_counters(struct cli_def *cli, char *command, char **argv, in
                return CLI_HELP_NO_ARGS;
 
        cli_print(cli, "%-10s %-8s %-10s %-8s", "Ethernet", "Bytes", "Packets", "Errors");
-       cli_print(cli, "%-10s %8lu %8lu %8lu", "RX",
+       cli_print(cli, "%-10s %8u %8u %8u", "RX",
                        GET_STAT(tun_rx_bytes),
                        GET_STAT(tun_rx_packets),
                        GET_STAT(tun_rx_errors));
-       cli_print(cli, "%-10s %8lu %8lu %8lu", "TX",
+       cli_print(cli, "%-10s %8u %8u %8u", "TX",
                        GET_STAT(tun_tx_bytes),
                        GET_STAT(tun_tx_packets),
                        GET_STAT(tun_tx_errors));
        cli_print(cli, "");
 
        cli_print(cli, "%-10s %-8s %-10s %-8s %-8s", "Tunnel", "Bytes", "Packets", "Errors", "Retries");
-       cli_print(cli, "%-10s %8lu %8lu %8lu %8lu", "RX",
+       cli_print(cli, "%-10s %8u %8u %8u", "RX",
                        GET_STAT(tunnel_rx_bytes),
                        GET_STAT(tunnel_rx_packets),
-                       GET_STAT(tunnel_rx_errors),
-                       0L);
-       cli_print(cli, "%-10s %8lu %8lu %8lu %8lu", "TX",
+                       GET_STAT(tunnel_rx_errors));
+       cli_print(cli, "%-10s %8u %8u %8u %8u", "TX",
                        GET_STAT(tunnel_tx_bytes),
                        GET_STAT(tunnel_tx_packets),
                        GET_STAT(tunnel_tx_errors),
@@ -648,52 +671,55 @@ static int cmd_show_counters(struct cli_def *cli, char *command, char **argv, in
 
        cli_print(cli, "%-30s%-10s", "Counter", "Value");
        cli_print(cli, "-----------------------------------------");
-       cli_print(cli, "%-30s%lu", "radius_retries",            GET_STAT(radius_retries));
-       cli_print(cli, "%-30s%lu", "arp_sent",                  GET_STAT(arp_sent));
-       cli_print(cli, "%-30s%lu", "packets_snooped",           GET_STAT(packets_snooped));
-       cli_print(cli, "%-30s%lu", "tunnel_created",            GET_STAT(tunnel_created));
-       cli_print(cli, "%-30s%lu", "session_created",           GET_STAT(session_created));
-       cli_print(cli, "%-30s%lu", "tunnel_timeout",            GET_STAT(tunnel_timeout));
-       cli_print(cli, "%-30s%lu", "session_timeout",           GET_STAT(session_timeout));
-       cli_print(cli, "%-30s%lu", "radius_timeout",            GET_STAT(radius_timeout));
-       cli_print(cli, "%-30s%lu", "radius_overflow",           GET_STAT(radius_overflow));
-       cli_print(cli, "%-30s%lu", "tunnel_overflow",           GET_STAT(tunnel_overflow));
-       cli_print(cli, "%-30s%lu", "session_overflow",          GET_STAT(session_overflow));
-       cli_print(cli, "%-30s%lu", "ip_allocated",              GET_STAT(ip_allocated));
-       cli_print(cli, "%-30s%lu", "ip_freed",                  GET_STAT(ip_freed));
-       cli_print(cli, "%-30s%lu", "cluster_forwarded",         GET_STAT(c_forwarded));
-       cli_print(cli, "%-30s%lu", "recv_forward",              GET_STAT(recv_forward));
+       cli_print(cli, "%-30s%u", "radius_retries",             GET_STAT(radius_retries));
+       cli_print(cli, "%-30s%u", "arp_sent",                   GET_STAT(arp_sent));
+       cli_print(cli, "%-30s%u", "packets_snooped",            GET_STAT(packets_snooped));
+       cli_print(cli, "%-30s%u", "tunnel_created",             GET_STAT(tunnel_created));
+       cli_print(cli, "%-30s%u", "session_created",            GET_STAT(session_created));
+       cli_print(cli, "%-30s%u", "tunnel_timeout",             GET_STAT(tunnel_timeout));
+       cli_print(cli, "%-30s%u", "session_timeout",            GET_STAT(session_timeout));
+       cli_print(cli, "%-30s%u", "radius_timeout",             GET_STAT(radius_timeout));
+       cli_print(cli, "%-30s%u", "radius_overflow",            GET_STAT(radius_overflow));
+       cli_print(cli, "%-30s%u", "tunnel_overflow",            GET_STAT(tunnel_overflow));
+       cli_print(cli, "%-30s%u", "session_overflow",           GET_STAT(session_overflow));
+       cli_print(cli, "%-30s%u", "ip_allocated",               GET_STAT(ip_allocated));
+       cli_print(cli, "%-30s%u", "ip_freed",                   GET_STAT(ip_freed));
+       cli_print(cli, "%-30s%u", "cluster_forwarded",          GET_STAT(c_forwarded));
+       cli_print(cli, "%-30s%u", "recv_forward",               GET_STAT(recv_forward));
+       cli_print(cli, "%-30s%u", "select_called",              GET_STAT(select_called));
+       cli_print(cli, "%-30s%u", "multi_read_used",            GET_STAT(multi_read_used));
+       cli_print(cli, "%-30s%u", "multi_read_exceeded",        GET_STAT(multi_read_exceeded));
 
 
 #ifdef STATISTICS
        cli_print(cli, "\n%-30s%-10s", "Counter", "Value");
        cli_print(cli, "-----------------------------------------");
-       cli_print(cli, "%-30s%lu", "call_processtun",           GET_STAT(call_processtun));
-       cli_print(cli, "%-30s%lu", "call_processipout",         GET_STAT(call_processipout));
-       cli_print(cli, "%-30s%lu", "call_processudp",           GET_STAT(call_processudp));
-       cli_print(cli, "%-30s%lu", "call_processpap",           GET_STAT(call_processpap));
-       cli_print(cli, "%-30s%lu", "call_processchap",          GET_STAT(call_processchap));
-       cli_print(cli, "%-30s%lu", "call_processlcp",           GET_STAT(call_processlcp));
-       cli_print(cli, "%-30s%lu", "call_processipcp",          GET_STAT(call_processipcp));
-       cli_print(cli, "%-30s%lu", "call_processipin",          GET_STAT(call_processipin));
-       cli_print(cli, "%-30s%lu", "call_processccp",           GET_STAT(call_processccp));
-       cli_print(cli, "%-30s%lu", "call_processrad",           GET_STAT(call_processrad));
-       cli_print(cli, "%-30s%lu", "call_sendarp",              GET_STAT(call_sendarp));
-       cli_print(cli, "%-30s%lu", "call_sendipcp",             GET_STAT(call_sendipcp));
-       cli_print(cli, "%-30s%lu", "call_sendchap",             GET_STAT(call_sendchap));
-       cli_print(cli, "%-30s%lu", "call_sessionbyip",          GET_STAT(call_sessionbyip));
-       cli_print(cli, "%-30s%lu", "call_sessionbyuser",        GET_STAT(call_sessionbyuser));
-       cli_print(cli, "%-30s%lu", "call_tunnelsend",           GET_STAT(call_tunnelsend));
-       cli_print(cli, "%-30s%lu", "call_tunnelkill",           GET_STAT(call_tunnelkill));
-       cli_print(cli, "%-30s%lu", "call_tunnelshutdown",       GET_STAT(call_tunnelshutdown));
-       cli_print(cli, "%-30s%lu", "call_sessionkill",          GET_STAT(call_sessionkill));
-       cli_print(cli, "%-30s%lu", "call_sessionshutdown",      GET_STAT(call_sessionshutdown));
-       cli_print(cli, "%-30s%lu", "call_sessionsetup",         GET_STAT(call_sessionsetup));
-       cli_print(cli, "%-30s%lu", "call_assign_ip_address",    GET_STAT(call_assign_ip_address));
-       cli_print(cli, "%-30s%lu", "call_free_ip_address",      GET_STAT(call_free_ip_address));
-       cli_print(cli, "%-30s%lu", "call_dump_acct_info",       GET_STAT(call_dump_acct_info));
-       cli_print(cli, "%-30s%lu", "call_radiussend",           GET_STAT(call_radiussend));
-       cli_print(cli, "%-30s%lu", "call_radiusretry",          GET_STAT(call_radiusretry));
+       cli_print(cli, "%-30s%u", "call_processtun",            GET_STAT(call_processtun));
+       cli_print(cli, "%-30s%u", "call_processipout",          GET_STAT(call_processipout));
+       cli_print(cli, "%-30s%u", "call_processudp",            GET_STAT(call_processudp));
+       cli_print(cli, "%-30s%u", "call_processpap",            GET_STAT(call_processpap));
+       cli_print(cli, "%-30s%u", "call_processchap",           GET_STAT(call_processchap));
+       cli_print(cli, "%-30s%u", "call_processlcp",            GET_STAT(call_processlcp));
+       cli_print(cli, "%-30s%u", "call_processipcp",           GET_STAT(call_processipcp));
+       cli_print(cli, "%-30s%u", "call_processipin",           GET_STAT(call_processipin));
+       cli_print(cli, "%-30s%u", "call_processccp",            GET_STAT(call_processccp));
+       cli_print(cli, "%-30s%u", "call_processrad",            GET_STAT(call_processrad));
+       cli_print(cli, "%-30s%u", "call_sendarp",               GET_STAT(call_sendarp));
+       cli_print(cli, "%-30s%u", "call_sendipcp",              GET_STAT(call_sendipcp));
+       cli_print(cli, "%-30s%u", "call_sendchap",              GET_STAT(call_sendchap));
+       cli_print(cli, "%-30s%u", "call_sessionbyip",           GET_STAT(call_sessionbyip));
+       cli_print(cli, "%-30s%u", "call_sessionbyuser",         GET_STAT(call_sessionbyuser));
+       cli_print(cli, "%-30s%u", "call_tunnelsend",            GET_STAT(call_tunnelsend));
+       cli_print(cli, "%-30s%u", "call_tunnelkill",            GET_STAT(call_tunnelkill));
+       cli_print(cli, "%-30s%u", "call_tunnelshutdown",        GET_STAT(call_tunnelshutdown));
+       cli_print(cli, "%-30s%u", "call_sessionkill",           GET_STAT(call_sessionkill));
+       cli_print(cli, "%-30s%u", "call_sessionshutdown",       GET_STAT(call_sessionshutdown));
+       cli_print(cli, "%-30s%u", "call_sessionsetup",          GET_STAT(call_sessionsetup));
+       cli_print(cli, "%-30s%u", "call_assign_ip_address",     GET_STAT(call_assign_ip_address));
+       cli_print(cli, "%-30s%u", "call_free_ip_address",       GET_STAT(call_free_ip_address));
+       cli_print(cli, "%-30s%u", "call_dump_acct_info",        GET_STAT(call_dump_acct_info));
+       cli_print(cli, "%-30s%u", "call_radiussend",            GET_STAT(call_radiussend));
+       cli_print(cli, "%-30s%u", "call_radiusretry",           GET_STAT(call_radiusretry));
 #endif
        return CLI_OK;
 }
@@ -732,7 +758,7 @@ static int cmd_show_version(struct cli_def *cli, char *command, char **argv, int
                        p = "HEAD";
 
                e = strpbrk(p, " \t$");
-               cli_print(cli, "Tag: %.*s", e ? e - p + 1 : strlen(p), p);
+               cli_print(cli, "Tag: %.*s", (int) (e ? e - p + 1 : strlen(p)), p);
        }
        
        if (file)
@@ -777,7 +803,9 @@ static int cmd_show_pool(struct cli_def *cli, char *command, char **argv, int ar
 
        if (!config->cluster_iam_master)
        {
-               cli_print(cli, "Can't do this on a slave.  Do it on %s", inet_toa(config->cluster_master_address));
+               cli_print(cli, "Can't do this on a slave.  Do it on %s",
+                       fmtaddr(config->cluster_master_address, 0));
+
                return CLI_OK;
        }
 
@@ -802,7 +830,9 @@ static int cmd_show_pool(struct cli_def *cli, char *command, char **argv, int ar
                if (ip_address_pool[i].assigned)
                {
                        cli_print(cli, "%-15s\tY %8d %s",
-                               inet_toa(htonl(ip_address_pool[i].address)), ip_address_pool[i].session, session[ip_address_pool[i].session].user);
+                               fmtaddr(htonl(ip_address_pool[i].address), 0),
+                               ip_address_pool[i].session,
+                               session[ip_address_pool[i].session].user);
 
                        used++;
                }
@@ -810,10 +840,11 @@ static int cmd_show_pool(struct cli_def *cli, char *command, char **argv, int ar
                {
                        if (ip_address_pool[i].last)
                                cli_print(cli, "%-15s\tN %8s [%s] %ds",
-                                       inet_toa(htonl(ip_address_pool[i].address)), "",
-                                       ip_address_pool[i].user, time_now - ip_address_pool[i].last);
+                                       fmtaddr(htonl(ip_address_pool[i].address), 0), "",
+                                       ip_address_pool[i].user, (int) time_now - ip_address_pool[i].last);
+
                        else if (show_all)
-                               cli_print(cli, "%-15s\tN", inet_toa(htonl(ip_address_pool[i].address)));
+                               cli_print(cli, "%-15s\tN", fmtaddr(htonl(ip_address_pool[i].address), 0));
 
                        free++;
                }
@@ -826,7 +857,8 @@ static int cmd_show_pool(struct cli_def *cli, char *command, char **argv, int ar
        return CLI_OK;
 }
 
-void print_save_config(struct cli_def *cli, char *string)
+static FILE *save_config_fh = 0;
+static void print_save_config(struct cli_def *cli, char *string)
 {
        if (save_config_fh)
                fprintf(save_config_fh, "%s\n", string);
@@ -844,6 +876,7 @@ static int cmd_write_memory(struct cli_def *cli, char *command, char **argv, int
                cmd_show_run(cli, command, argv, argc);
                cli_print_callback(cli, NULL);
                fclose(save_config_fh);
+               save_config_fh = 0;
        }
        else
        {
@@ -852,9 +885,12 @@ static int cmd_write_memory(struct cli_def *cli, char *command, char **argv, int
        return CLI_OK;
 }
 
+static char const *show_access_list_rule(int extended, ip_filter_rulet *rule);
+
 static int cmd_show_run(struct cli_def *cli, char *command, char **argv, int argc)
 {
        int i;
+       char ipv6addr[INET6_ADDRSTRLEN];
 
        if (CLI_HELP_REQUESTED)
                return CLI_HELP_NO_ARGS;
@@ -865,25 +901,27 @@ static int cmd_show_run(struct cli_def *cli, char *command, char **argv, int arg
        {
                void *value = ((void *)config) + config_values[i].offset;
                if (config_values[i].type == STRING)
-                       cli_print(cli, "set %s \"%.*s\"", config_values[i].key, config_values[i].size, (char *)value);
-               else if (config_values[i].type == IP)
-                       cli_print(cli, "set %s %s", config_values[i].key, inet_toa(*(unsigned *)value));
+                       cli_print(cli, "set %s \"%.*s\"", config_values[i].key, config_values[i].size, (char *) value);
+               else if (config_values[i].type == IPv4)
+                       cli_print(cli, "set %s %s", config_values[i].key, fmtaddr(*(in_addr_t *) value, 0));
+               else if (config_values[i].type == IPv6)
+                       cli_print(cli, "set %s %s", config_values[i].key, inet_ntop(AF_INET6, value, ipv6addr, INET6_ADDRSTRLEN));
                else if (config_values[i].type == SHORT)
-                       cli_print(cli, "set %s %hu", config_values[i].key, *(short *)value);
+                       cli_print(cli, "set %s %hu", config_values[i].key, *(short *) value);
                else if (config_values[i].type == BOOL)
-                       cli_print(cli, "set %s %s", config_values[i].key, (*(int *)value) ? "yes" : "no");
+                       cli_print(cli, "set %s %s", config_values[i].key, (*(int *) value) ? "yes" : "no");
                else if (config_values[i].type == INT)
-                       cli_print(cli, "set %s %d", config_values[i].key, *(int *)value);
+                       cli_print(cli, "set %s %d", config_values[i].key, *(int *) value);
                else if (config_values[i].type == UNSIGNED_LONG)
-                       cli_print(cli, "set %s %lu", config_values[i].key, *(unsigned long *)value);
+                       cli_print(cli, "set %s %lu", config_values[i].key, *(unsigned long *) value);
                else if (config_values[i].type == MAC)
                        cli_print(cli, "set %s %02x%02x.%02x%02x.%02x%02x", config_values[i].key,
-                                       *(unsigned short *)(value + 0),
-                                       *(unsigned short *)(value + 1),
-                                       *(unsigned short *)(value + 2),
-                                       *(unsigned short *)(value + 3),
-                                       *(unsigned short *)(value + 4),
-                                       *(unsigned short *)(value + 5));
+                                       *(unsigned short *) (value + 0),
+                                       *(unsigned short *) (value + 1),
+                                       *(unsigned short *) (value + 2),
+                                       *(unsigned short *) (value + 3),
+                                       *(unsigned short *) (value + 4),
+                                       *(unsigned short *) (value + 5));
        }
 
        cli_print(cli, "# Plugins");
@@ -898,17 +936,17 @@ static int cmd_show_run(struct cli_def *cli, char *command, char **argv, int arg
 #ifdef BGP
        if (config->as_number)
        {
-               int k;
+               int k;
                int h;
 
-               cli_print(cli, "# BGP");
+               cli_print(cli, "# BGP");
                cli_print(cli, "router bgp %u", config->as_number);
                for (i = 0; i < BGP_NUM_PEERS; i++)
                {
                        if (!config->neighbour[i].name[0])
                                continue;
 
-                       cli_print(cli, " neighbour %s remote-as %u", config->neighbour[i].name, config->neighbour[i].as);
+                       cli_print(cli, " neighbour %s remote-as %u", config->neighbour[i].name, config->neighbour[i].as);
 
                        k = config->neighbour[i].keepalive;
                        h = config->neighbour[i].hold;
@@ -929,6 +967,22 @@ static int cmd_show_run(struct cli_def *cli, char *command, char **argv, int arg
        }
 #endif
 
+       cli_print(cli, "# Filters");
+       for (i = 0; i < MAXFILTER; i++)
+       {
+               ip_filter_rulet *rules;
+               if (!*ip_filters[i].name)
+                       continue;
+
+               cli_print(cli, "ip access-list %s %s",
+                       ip_filters[i].extended ? "extended" : "standard",
+                       ip_filters[i].name);
+
+               rules = ip_filters[i].rules;
+               while (rules->action)
+                       cli_print(cli, "%s", show_access_list_rule(ip_filters[i].extended, rules++));
+       }
+
        cli_print(cli, "# end");
        return CLI_OK;
 }
@@ -956,7 +1010,7 @@ static int cmd_show_radius(struct cli_def *cli, char *command, char **argv, int
                        NULL);
        }
 
-       cli_print(cli, "%6s%6s%5s%6s%9s%9s%4s", "ID", "Radius", "Sock", "State", "Session", "Retry", "Try");
+       cli_print(cli, "%6s%7s%5s%6s%9s%9s%4s", "ID", "Radius", "Sock", "State", "Session", "Retry", "Try");
 
        time(&time_now);
 
@@ -972,7 +1026,7 @@ static int cmd_show_radius(struct cli_def *cli, char *command, char **argv, int
 
                if (!show_all && radius[i].state == RADIUSNULL) continue;
 
-               cli_print(cli, "%6d%6d%5d%6s%9d%9u%4d",
+               cli_print(cli, "%6d%7d%5d%6s%9d%9u%4d",
                                i,
                                i >> RADIUS_SHIFT,
                                i & RADIUS_MASK,
@@ -1078,7 +1132,9 @@ static int cmd_drop_user(struct cli_def *cli, char *command, char **argv, int ar
 
        if (!config->cluster_iam_master)
        {
-               cli_print(cli, "Can't do this on a slave.  Do it on %s", inet_toa(config->cluster_master_address));
+               cli_print(cli, "Can't do this on a slave.  Do it on %s",
+                       fmtaddr(config->cluster_master_address, 0));
+
                return CLI_OK;
        }
 
@@ -1117,7 +1173,9 @@ static int cmd_drop_tunnel(struct cli_def *cli, char *command, char **argv, int
 
        if (!config->cluster_iam_master)
        {
-               cli_print(cli, "Can't do this on a slave.  Do it on %s", inet_toa(config->cluster_master_address));
+               cli_print(cli, "Can't do this on a slave.  Do it on %s",
+                       fmtaddr(config->cluster_master_address, 0));
+
                return CLI_OK;
        }
 
@@ -1165,7 +1223,9 @@ static int cmd_drop_session(struct cli_def *cli, char *command, char **argv, int
 
        if (!config->cluster_iam_master)
        {
-               cli_print(cli, "Can't do this on a slave.  Do it on %s", inet_toa(config->cluster_master_address));
+               cli_print(cli, "Can't do this on a slave.  Do it on %s",
+                       fmtaddr(config->cluster_master_address, 0));
+
                return CLI_OK;
        }
 
@@ -1199,8 +1259,8 @@ static int cmd_drop_session(struct cli_def *cli, char *command, char **argv, int
 
 static int cmd_snoop(struct cli_def *cli, char *command, char **argv, int argc)
 {
-       ipt ip;
-       u16 port;
+       in_addr_t ip;
+       uint16_t port;
        sessionidt s;
 
        if (CLI_HELP_REQUESTED)
@@ -1230,7 +1290,9 @@ static int cmd_snoop(struct cli_def *cli, char *command, char **argv, int argc)
 
        if (!config->cluster_iam_master)
        {
-               cli_print(cli, "Can't do this on a slave.  Do it on %s", inet_toa(config->cluster_master_address));
+               cli_print(cli, "Can't do this on a slave.  Do it on %s",
+                       fmtaddr(config->cluster_master_address, 0));
+
                return CLI_OK;
        }
 
@@ -1260,7 +1322,7 @@ static int cmd_snoop(struct cli_def *cli, char *command, char **argv, int argc)
                return CLI_OK;
        }
 
-       cli_print(cli, "Snooping user %s to %s:%d", argv[0], inet_toa(ip), port);
+       cli_print(cli, "Snooping user %s to %s:%d", argv[0], fmtaddr(ip, 0), port);
        cli_session_actions[s].snoop_ip = ip;
        cli_session_actions[s].snoop_port = port;
        cli_session_actions[s].action |= CLI_SESS_SNOOP;
@@ -1279,7 +1341,9 @@ static int cmd_no_snoop(struct cli_def *cli, char *command, char **argv, int arg
 
        if (!config->cluster_iam_master)
        {
-               cli_print(cli, "Can't do this on a slave.  Do it on %s", inet_toa(config->cluster_master_address));
+               cli_print(cli, "Can't do this on a slave.  Do it on %s",
+                       fmtaddr(config->cluster_master_address, 0));
+
                return CLI_OK;
        }
 
@@ -1351,7 +1415,9 @@ static int cmd_throttle(struct cli_def *cli, char *command, char **argv, int arg
 
        if (!config->cluster_iam_master)
        {
-               cli_print(cli, "Can't do this on a slave.  Do it on %s", inet_toa(config->cluster_master_address));
+               cli_print(cli, "Can't do this on a slave.  Do it on %s",
+                       fmtaddr(config->cluster_master_address, 0));
+
                return CLI_OK;
        }
 
@@ -1385,11 +1451,10 @@ static int cmd_throttle(struct cli_def *cli, char *command, char **argv, int arg
                int i;
                for (i = 1; i < argc - 1; i += 2)
                {
-                       int len = strlen(argv[i]);
                        int r = 0;
-                       if (!strncasecmp(argv[i], "in", len))
+                       if (MATCH("in", argv[i]))
                                r = rate_in = atoi(argv[i+1]);
-                       else if (!strncasecmp(argv[i], "out", len))
+                       else if (MATCH("out", argv[i]))
                                r = rate_out = atoi(argv[i+1]);
 
                        if (r < 1)
@@ -1442,7 +1507,9 @@ static int cmd_no_throttle(struct cli_def *cli, char *command, char **argv, int
 
        if (!config->cluster_iam_master)
        {
-               cli_print(cli, "Can't do this on a slave.  Do it on %s", inet_toa(config->cluster_master_address));
+               cli_print(cli, "Can't do this on a slave.  Do it on %s",
+                       fmtaddr(config->cluster_master_address, 0));
+
                return CLI_OK;
        }
 
@@ -1519,13 +1586,13 @@ static int cmd_debug(struct cli_def *cli, char *command, char **argv, int argc)
                if (argv[i][0] == 'c' && len < 2)
                        len = 2; /* distinguish [cr]itical from [ca]lls */
 
-               if (!strncasecmp(argv[i], "critical", len)) { debug_flags.critical = 1; continue; }
-               if (!strncasecmp(argv[i], "error",    len)) { debug_flags.error = 1;    continue; }
-               if (!strncasecmp(argv[i], "warning",  len)) { debug_flags.warning = 1;  continue; }
-               if (!strncasecmp(argv[i], "info",     len)) { debug_flags.info = 1;     continue; }
-               if (!strncasecmp(argv[i], "calls",    len)) { debug_flags.calls = 1;    continue; }
-               if (!strncasecmp(argv[i], "data",     len)) { debug_flags.data = 1;     continue; }
-               if (!strncasecmp(argv[i], "all",      len))
+               if (!strncmp("critical", argv[i], len)) { debug_flags.critical = 1; continue; }
+               if (!strncmp("error",    argv[i], len)) { debug_flags.error = 1;    continue; }
+               if (!strncmp("warning",  argv[i], len)) { debug_flags.warning = 1;  continue; }
+               if (!strncmp("info",     argv[i], len)) { debug_flags.info = 1;     continue; }
+               if (!strncmp("calls",    argv[i], len)) { debug_flags.calls = 1;    continue; }
+               if (!strncmp("data",     argv[i], len)) { debug_flags.data = 1;     continue; }
+               if (!strncmp("all",      argv[i], len))
                {
                        memset(&debug_flags, 1, sizeof(debug_flags));
                        debug_flags.data = 0;
@@ -1566,13 +1633,13 @@ static int cmd_no_debug(struct cli_def *cli, char *command, char **argv, int arg
                if (argv[i][0] == 'c' && len < 2)
                        len = 2; /* distinguish [cr]itical from [ca]lls */
 
-               if (!strncasecmp(argv[i], "critical", len)) { debug_flags.critical = 0; continue; }
-               if (!strncasecmp(argv[i], "error",    len)) { debug_flags.error = 0;    continue; }
-               if (!strncasecmp(argv[i], "warning",  len)) { debug_flags.warning = 0;  continue; }
-               if (!strncasecmp(argv[i], "info",     len)) { debug_flags.info = 0;     continue; }
-               if (!strncasecmp(argv[i], "calls",    len)) { debug_flags.calls = 0;    continue; }
-               if (!strncasecmp(argv[i], "data",     len)) { debug_flags.data = 0;     continue; }
-               if (!strncasecmp(argv[i], "all",      len))
+               if (!strncmp("critical", argv[i], len)) { debug_flags.critical = 0; continue; }
+               if (!strncmp("error",    argv[i], len)) { debug_flags.error = 0;    continue; }
+               if (!strncmp("warning",  argv[i], len)) { debug_flags.warning = 0;  continue; }
+               if (!strncmp("info",     argv[i], len)) { debug_flags.info = 0;     continue; }
+               if (!strncmp("calls",    argv[i], len)) { debug_flags.calls = 0;    continue; }
+               if (!strncmp("data",     argv[i], len)) { debug_flags.data = 0;     continue; }
+               if (!strncmp("all",      argv[i], len))
                {
                        memset(&debug_flags, 0, sizeof(debug_flags));
                        continue;
@@ -1647,7 +1714,7 @@ static int cmd_remove_plugin(struct cli_def *cli, char *command, char **argv, in
        return CLI_OK;
 }
 
-char *duration(time_t secs)
+static char *duration(time_t secs)
 {
        static char *buf = NULL;
        int p = 0;
@@ -1728,7 +1795,7 @@ static int cmd_set(struct cli_def *cli, char *command, char **argv, int argc)
                        {
                                int len = strlen(argv[0])-1;
                                for (i = 0; config_values[i].key; i++)
-                                       if (!len || !strncmp(argv[0], config_values[i].key, len))
+                                       if (!len || !strncmp(config_values[i].key, argv[0], len))
                                                cli_print(cli, "  %s", config_values[i].key);
                        }
 
@@ -1763,28 +1830,31 @@ static int cmd_set(struct cli_def *cli, char *command, char **argv, int argc)
                        switch (config_values[i].type)
                        {
                        case STRING:
-                               strncpy((char *)value, argv[1], config_values[i].size - 1);
+                               strncpy((char *) value, argv[1], config_values[i].size - 1);
                                break;
                        case INT:
-                               *(int *)value = atoi(argv[1]);
+                               *(int *) value = atoi(argv[1]);
                                break;
                        case UNSIGNED_LONG:
-                               *(unsigned long *)value = atol(argv[1]);
+                               *(unsigned long *) value = atol(argv[1]);
                                break;
                        case SHORT:
-                               *(short *)value = atoi(argv[1]);
+                               *(short *) value = atoi(argv[1]);
+                               break;
+                       case IPv4:
+                               *(in_addr_t *) value = inet_addr(argv[1]);
                                break;
-                       case IP:
-                               *(unsigned *)value = inet_addr(argv[1]);
+                       case IPv6:
+                               inet_pton(AF_INET6, argv[1], value);
                                break;
                        case MAC:
                                parsemac(argv[1], (char *)value);
                                break;
                        case BOOL:
                                if (strcasecmp(argv[1], "yes") == 0 || strcasecmp(argv[1], "true") == 0 || strcasecmp(argv[1], "1") == 0)
-                                       *(int *)value = 1;
+                                       *(int *) value = 1;
                                else
-                                       *(int *)value = 0;
+                                       *(int *) value = 0;
                                break;
                        default:
                                cli_print(cli, "Unknown variable type");
@@ -1801,50 +1871,44 @@ static int cmd_set(struct cli_def *cli, char *command, char **argv, int argc)
 
 int regular_stuff(struct cli_def *cli)
 {
-       int i = debug_rb_tail;
-       int reprompt = 0;
+       int out = 0;
+       int i;
 
 #ifdef RINGBUFFER
-       while (i != ringbuffer->tail)
+       for (i = debug_rb_tail; i != ringbuffer->tail; i = (i + 1) % RINGBUFFER_SIZE)
        {
-               int show_message = 0;
+               char *m = ringbuffer->buffer[i].message;
+               char *p;
+               int show = 0;
+
+               if (!*m) continue;
 
-               if (*ringbuffer->buffer[i].message)
+               switch (ringbuffer->buffer[i].level)
                {
-                       // Always show messages if we are doing general debug
-                       if (ringbuffer->buffer[i].level == 0 && debug_flags.critical) show_message = 1;
-                       if (ringbuffer->buffer[i].level == 1 && debug_flags.error)    show_message = 1;
-                       if (ringbuffer->buffer[i].level == 2 && debug_flags.warning)  show_message = 1;
-                       if (ringbuffer->buffer[i].level == 3 && debug_flags.info)     show_message = 1;
-                       if (ringbuffer->buffer[i].level == 4 && debug_flags.calls)    show_message = 1;
-                       if (ringbuffer->buffer[i].level == 5 && debug_flags.data)     show_message = 1;
+               case 0: show = debug_flags.critical;    break;
+               case 1: show = debug_flags.error;       break;
+               case 2: show = debug_flags.warning;     break;
+               case 3: show = debug_flags.info;        break;
+               case 4: show = debug_flags.calls;       break;
+               case 5: show = debug_flags.data;        break;
                }
 
-               if (show_message)
-               {
-                       ipt address = htonl(ringbuffer->buffer[i].address);
-                       char *ipaddr;
-                       struct in_addr addr;
+               if (!show) continue;
 
-                       memcpy(&addr, &address, sizeof(ringbuffer->buffer[i].address));
-                       ipaddr = inet_ntoa(addr);
+               if (!(p = strchr(m, '\n')))
+                       p = m + strlen(p);
 
-                       cli_print(cli, "\r%s-%s-%u-%u %s",
-                                       debug_levels[(int)ringbuffer->buffer[i].level],
-                                       ipaddr,
-                                       ringbuffer->buffer[i].tunnel,
-                                       ringbuffer->buffer[i].session,
-                                       ringbuffer->buffer[i].message);
+               cli_print(cli, "\r%s-%u-%u %.*s",
+                       debug_levels[(int)ringbuffer->buffer[i].level],
+                       ringbuffer->buffer[i].tunnel,
+                       ringbuffer->buffer[i].session,
+                       (int) (p - m), m);
 
-                       reprompt = 1;
-               }
-
-               if (++i == ringbuffer->tail) break;
-               if (i == RINGBUFFER_SIZE) i = 0;
+               out++;
        }
 
        debug_rb_tail = ringbuffer->tail;
-       if (reprompt)
+       if (out)
                cli_reprompt(cli);
 #endif
        return CLI_OK;
@@ -1877,16 +1941,7 @@ static int cmd_router_bgp(struct cli_def *cli, char *command, char **argv, int a
        return CLI_OK;
 }
 
-static int cmd_router_bgp_exit(struct cli_def *cli, char *command, char **argv, int argc)
-{
-       if (CLI_HELP_REQUESTED)
-               return CLI_HELP_NO_ARGS;
-
-       cli_set_configmode(cli, MODE_CONFIG, NULL);
-       return CLI_OK;
-}
-
-static int find_bgp_neighbour(char *name)
+static int find_bgp_neighbour(char const *name)
 {
        int i;
        int new = -1;
@@ -1902,7 +1957,7 @@ static int find_bgp_neighbour(char *name)
 
        for (i = 0; i < BGP_NUM_PEERS; i++)
        {
-               if (!config->neighbour[i].name[0])
+               if (!config->neighbour[i].name[0])
                {
                        if (new == -1) new = i;
                        continue;
@@ -1949,12 +2004,12 @@ static int cmd_router_bgp_neighbour(struct cli_def *cli, char *command, char **a
                                NULL);
 
                default:
-                       if (!strncmp("remote-as", argv[1], strlen(argv[1])))
-                               return cli_arg_help(cli, argv[2][1], "<1-65535>", "Autonomous system number", NULL);
+                       if (MATCH("remote-as", argv[1]))
+                               return cli_arg_help(cli, argv[2][1], "<1-65535>", "Autonomous system number", NULL);
 
-                       if (!strncmp("timers", argv[1], strlen(argv[1])))
+                       if (MATCH("timers", argv[1]))
                        {
-                               if (argc == 3)
+                               if (argc == 3)
                                        return cli_arg_help(cli, 0, "<1-65535>", "Keepalive time", NULL);
 
                                if (argc == 4)
@@ -1986,9 +2041,9 @@ static int cmd_router_bgp_neighbour(struct cli_def *cli, char *command, char **a
                return CLI_OK;
        }
 
-       if (!strncmp("remote-as", argv[1], strlen(argv[1])))
+       if (MATCH("remote-as", argv[1]))
        {
-               int as = atoi(argv[2]);
+               int as = atoi(argv[2]);
                if (as < 0 || as > 65535)
                {
                        cli_print(cli, "Invalid autonomous system number");
@@ -2006,7 +2061,7 @@ static int cmd_router_bgp_neighbour(struct cli_def *cli, char *command, char **a
                return CLI_OK;
        }
 
-       if (argc != 4 || strncmp("timers", argv[1], strlen(argv[1])))
+       if (argc != 4 || !MATCH("timers", argv[1]))
        {
                cli_print(cli, "Invalid arguments");
                return CLI_OK;
@@ -2093,7 +2148,7 @@ static int cmd_show_bgp(struct cli_def *cli, char *command, char **argv, int arg
                        NULL);
 
        cli_print(cli, "BGPv%d router identifier %s, local AS number %d",
-               BGP_VERSION, inet_toa(my_address), (int) config->as_number);
+               BGP_VERSION, fmtaddr(my_address, 0), (int) config->as_number);
 
        time(&time_now);
 
@@ -2102,7 +2157,7 @@ static int cmd_show_bgp(struct cli_def *cli, char *command, char **argv, int arg
                if (!*bgp_peers[i].name)
                        continue;
 
-               addr = inet_toa(bgp_peers[i].addr);
+               addr = fmtaddr(bgp_peers[i].addr, 0);
                if (argc && strcmp(addr, argv[0]) &&
                    strncmp(bgp_peers[i].name, argv[0], strlen(argv[0])))
                        continue;
@@ -2111,12 +2166,12 @@ static int cmd_show_bgp(struct cli_def *cli, char *command, char **argv, int arg
                {
                        cli_print(cli, "");
                        cli_print(cli, "Peer                  AS         Address "
-                           "State       Retries Retry in Route Pend Timers");
+                           "State       Retries Retry in Route Pend    Timers");
                        cli_print(cli, "------------------ ----- --------------- "
                            "----------- ------- -------- ----- ---- ---------");
                }
 
-               cli_print(cli, "%-18.18s %5d %15s %-11s %7d %7ds %5s %4s %4d %4d",
+               cli_print(cli, "%-18.18s %5d %15s %-11s %7d %7lds %5s %4s %4d %4d",
                        bgp_peers[i].name,
                        bgp_peers[i].as,
                        addr,
@@ -2154,7 +2209,7 @@ static int cmd_suspend_bgp(struct cli_def *cli, char *command, char **argv, int
                if (!bgp_peers[i].routing)
                        continue;
 
-               addr = inet_toa(bgp_peers[i].addr);
+               addr = fmtaddr(bgp_peers[i].addr, 0);
                if (argc && strcmp(addr, argv[0]) && strcmp(bgp_peers[i].name, argv[0]))
                        continue;
 
@@ -2187,7 +2242,7 @@ static int cmd_no_suspend_bgp(struct cli_def *cli, char *command, char **argv, i
                if (bgp_peers[i].routing)
                        continue;
 
-               addr = inet_toa(bgp_peers[i].addr);
+               addr = fmtaddr(bgp_peers[i].addr, 0);
                if (argc && strcmp(addr, argv[0]) &&
                    strncmp(bgp_peers[i].name, argv[0], strlen(argv[0])))
                        continue;
@@ -2218,7 +2273,7 @@ static int cmd_restart_bgp(struct cli_def *cli, char *command, char **argv, int
                if (!*bgp_peers[i].name)
                        continue;
 
-               addr = inet_toa(bgp_peers[i].addr);
+               addr = fmtaddr(bgp_peers[i].addr, 0);
                if (argc && strcmp(addr, argv[0]) &&
                    strncmp(bgp_peers[i].name, argv[0], strlen(argv[0])))
                        continue;
@@ -2231,6 +2286,767 @@ static int cmd_restart_bgp(struct cli_def *cli, char *command, char **argv, int
 }
 #endif /* BGP*/
 
+static int filt;
+static int find_access_list(char const *name)
+{
+       int i;
+
+       for (i = 0; i < MAXFILTER; i++)
+               if (!(*ip_filters[i].name && strcmp(ip_filters[i].name, name)))
+                       return i;
+
+       return -1;
+}
+
+static int access_list(struct cli_def *cli, char **argv, int argc, int add)
+{
+       int extended;
+
+       if (CLI_HELP_REQUESTED)
+       {
+               switch (argc)
+               {
+               case 1:
+                       return cli_arg_help(cli, 0,
+                               "standard", "Standard syntax",
+                               "extended", "Extended syntax",
+                               NULL);
+
+               case 2:
+                       return cli_arg_help(cli, argv[1][1],
+                               "NAME", "Access-list name",
+                               NULL);
+
+               default:
+                       if (argc == 3 && !argv[2][1])
+                               return cli_arg_help(cli, 1, NULL);
+
+                       return CLI_OK;
+               }
+       }
+
+       if (argc != 2)
+       {
+               cli_print(cli, "Specify access-list type and name");
+               return CLI_OK;
+       }
+
+       if (MATCH("standard", argv[0]))
+               extended = 0;
+       else if (MATCH("extended", argv[0]))
+               extended = 1;
+       else
+       {
+               cli_print(cli, "Invalid access-list type");
+               return CLI_OK;
+       }
+
+       if (strlen(argv[1]) > sizeof(ip_filters[0].name) - 1 ||
+           strspn(argv[1], "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_-") != strlen(argv[1]))
+       {
+               cli_print(cli, "Invalid access-list name");
+               return CLI_OK;
+       }
+
+       filt = find_access_list(argv[1]);
+       if (add)
+       {
+               if (filt < 0)
+               {
+                       cli_print(cli, "Too many access-lists");
+                       return CLI_OK;
+               }
+
+               // racy
+               if (!*ip_filters[filt].name)
+               {
+                       memset(&ip_filters[filt], 0, sizeof(ip_filters[filt]));
+                       strcpy(ip_filters[filt].name, argv[1]);
+                       ip_filters[filt].extended = extended;
+               }
+               else if (ip_filters[filt].extended != extended)
+               {
+                       cli_print(cli, "Access-list is %s",
+                               ip_filters[filt].extended ? "extended" : "standard");
+
+                       return CLI_OK;
+               }
+
+               cli_set_configmode(cli, MODE_CONFIG_NACL, extended ? "ext-nacl" : "std-nacl");
+               return CLI_OK;
+       }
+
+       if (filt < 0 || !*ip_filters[filt].name)
+       {
+               cli_print(cli, "Access-list not defined");
+               return CLI_OK;
+       }
+
+       // racy
+       if (ip_filters[filt].used)
+       {
+               cli_print(cli, "Access-list in use");
+               return CLI_OK;
+       }
+
+       memset(&ip_filters[filt], 0, sizeof(ip_filters[filt]));
+       return CLI_OK;
+}
+
+static int cmd_ip_access_list(struct cli_def *cli, char *command, char **argv, int argc)
+{
+       return access_list(cli, argv, argc, 1);
+}
+
+static int cmd_no_ip_access_list(struct cli_def *cli, char *command, char **argv, int argc)
+{
+       return access_list(cli, argv, argc, 0);
+}
+
+static int show_ip_wild(char *buf, in_addr_t ip, in_addr_t wild)
+{
+       if (ip == INADDR_ANY && wild == INADDR_BROADCAST)
+               return sprintf(buf, " any");
+
+       if (wild == INADDR_ANY)
+               return sprintf(buf, " host %s", fmtaddr(ip, 0));
+
+       return sprintf(buf, " %s %s", fmtaddr(ip, 0), fmtaddr(wild, 1));
+}
+
+static int show_ports(char *buf, ip_filter_portt *ports)
+{
+       switch (ports->op)
+       {
+       case FILTER_PORT_OP_EQ:    return sprintf(buf, " eq %u", ports->port);
+       case FILTER_PORT_OP_NEQ:   return sprintf(buf, " neq %u", ports->port);
+       case FILTER_PORT_OP_GT:    return sprintf(buf, " gt %u", ports->port);
+       case FILTER_PORT_OP_LT:    return sprintf(buf, " lt %u", ports->port);
+       case FILTER_PORT_OP_RANGE: return sprintf(buf, " range %u %u", ports->port, ports->port2);
+       }
+
+       return 0;
+}
+
+static char const *show_access_list_rule(int extended, ip_filter_rulet *rule)
+{
+       static char buf[256];
+       char *p = buf;
+
+       p += sprintf(p, " %s", rule->action == FILTER_ACTION_PERMIT ? "permit" : "deny");
+       if (extended)
+       {
+               struct protoent *proto = getprotobynumber(rule->proto);
+               p += sprintf(p, " %s", proto ? proto->p_name : "ERR");
+       }
+
+       p += show_ip_wild(p, rule->src_ip, rule->src_wild);
+       if (!extended)
+               return buf;
+
+       if (rule->proto == IPPROTO_TCP || rule->proto == IPPROTO_UDP)
+               p += show_ports(p, &rule->src_ports);
+
+       p += show_ip_wild(p, rule->dst_ip, rule->dst_wild);
+       if (rule->proto == IPPROTO_TCP || rule->proto == IPPROTO_UDP)
+               p += show_ports(p, &rule->dst_ports);
+
+       if (rule->proto == IPPROTO_TCP && rule->tcp_flag_op)
+       {
+               switch (rule->tcp_flag_op)
+               {
+               case FILTER_FLAG_OP_EST:
+                       p += sprintf(p, " established");
+                       break;
+
+               case FILTER_FLAG_OP_ANY:
+               case FILTER_FLAG_OP_ALL:
+                       p += sprintf(p, " match-%s", rule->tcp_flag_op == FILTER_FLAG_OP_ALL ? "all" : "any");
+                       if (rule->tcp_sflags & TCP_FLAG_FIN) p += sprintf(p, " +fin");
+                       if (rule->tcp_cflags & TCP_FLAG_FIN) p += sprintf(p, " -fin");
+                       if (rule->tcp_sflags & TCP_FLAG_SYN) p += sprintf(p, " +syn");
+                       if (rule->tcp_cflags & TCP_FLAG_SYN) p += sprintf(p, " -syn");
+                       if (rule->tcp_sflags & TCP_FLAG_RST) p += sprintf(p, " +rst");
+                       if (rule->tcp_cflags & TCP_FLAG_RST) p += sprintf(p, " -rst");
+                       if (rule->tcp_sflags & TCP_FLAG_PSH) p += sprintf(p, " +psh");
+                       if (rule->tcp_cflags & TCP_FLAG_PSH) p += sprintf(p, " -psh");
+                       if (rule->tcp_sflags & TCP_FLAG_ACK) p += sprintf(p, " +ack");
+                       if (rule->tcp_cflags & TCP_FLAG_ACK) p += sprintf(p, " -ack");
+                       if (rule->tcp_sflags & TCP_FLAG_URG) p += sprintf(p, " +urg");
+                       if (rule->tcp_cflags & TCP_FLAG_URG) p += sprintf(p, " -urg");
+                       break;
+               }
+       }
+
+       if (rule->frag)
+               p += sprintf(p, " fragments");
+
+       return buf;
+}
+
+ip_filter_rulet *access_list_rule_ext(struct cli_def *cli, char *command, char **argv, int argc)
+{
+       static ip_filter_rulet rule;
+       struct in_addr addr;
+       int i;
+       int a;
+
+       if (CLI_HELP_REQUESTED)
+       {
+               if (argc == 1)
+               {
+                       cli_arg_help(cli, 0,
+                               "ip",  "Match IP packets",
+                               "tcp", "Match TCP packets",
+                               "udp", "Match UDP packets",
+                               NULL);
+
+                       return NULL;
+               }
+
+               // *sigh*, too darned complex
+               cli_arg_help(cli, 0, "RULE", "SOURCE [PORTS] DEST [PORTS] FLAGS", NULL);
+               return NULL;
+       }
+
+       if (argc < 3)
+       {
+               cli_print(cli, "Specify rule details");
+               return NULL;
+       }
+
+       memset(&rule, 0, sizeof(rule));
+       rule.action = (command[0] == 'p')
+               ? FILTER_ACTION_PERMIT
+               : FILTER_ACTION_DENY;
+
+       if (MATCH("ip", argv[0]))
+               rule.proto = IPPROTO_IP;
+       else if (MATCH("udp", argv[0]))
+               rule.proto = IPPROTO_UDP;
+       else if (MATCH("tcp", argv[0]))
+               rule.proto = IPPROTO_TCP;
+       else
+       {
+               cli_print(cli, "Invalid protocol \"%s\"", argv[0]);
+               return NULL;
+       }
+
+       for (a = 1, i = 0; i < 2; i++)
+       {
+               in_addr_t *ip;
+               in_addr_t *wild;
+               ip_filter_portt *port;
+
+               if (i == 0)
+               {
+                       ip = &rule.src_ip;
+                       wild = &rule.src_wild;
+                       port = &rule.src_ports;
+               }
+               else
+               {
+                       ip = &rule.dst_ip;
+                       wild = &rule.dst_wild;
+                       port = &rule.dst_ports;
+                       if (a >= argc)
+                       {
+                               cli_print(cli, "Specify destination");
+                               return NULL;
+                       }
+               }
+
+               if (MATCH("any", argv[a]))
+               {
+                       *ip = INADDR_ANY;
+                       *wild = INADDR_BROADCAST;
+                       a++;
+               }
+               else if (MATCH("host", argv[a]))
+               {
+                       if (++a >= argc)
+                       {
+                               cli_print(cli, "Specify host ip address");
+                               return NULL;
+                       }
+
+                       if (!inet_aton(argv[a], &addr))
+                       {
+                               cli_print(cli, "Cannot parse IP \"%s\"", argv[a]);
+                               return NULL;
+                       }
+
+                       *ip = addr.s_addr;
+                       *wild = INADDR_ANY;
+                       a++;
+               }
+               else
+               {
+                       if (a >= argc - 1)
+                       {
+                               cli_print(cli, "Specify %s ip address and wildcard", i ? "destination" : "source");
+                               return NULL;
+                       }
+
+                       if (!inet_aton(argv[a], &addr))
+                       {
+                               cli_print(cli, "Cannot parse IP \"%s\"", argv[a]);
+                               return NULL;
+                       }
+
+                       *ip = addr.s_addr;
+
+                       if (!inet_aton(argv[++a], &addr))
+                       {
+                               cli_print(cli, "Cannot parse IP \"%s\"", argv[a]);
+                               return NULL;
+                       }
+
+                       *wild = addr.s_addr;
+                       a++;
+               }
+
+               if (rule.proto == IPPROTO_IP || a >= argc)
+                       continue;
+
+               port->op = 0;
+               if (MATCH("eq", argv[a]))
+                       port->op = FILTER_PORT_OP_EQ;
+               else if (MATCH("neq", argv[a]))
+                       port->op = FILTER_PORT_OP_NEQ;
+               else if (MATCH("gt", argv[a]))
+                       port->op = FILTER_PORT_OP_GT;
+               else if (MATCH("lt", argv[a]))
+                       port->op = FILTER_PORT_OP_LT;
+               else if (MATCH("range", argv[a]))
+                       port->op = FILTER_PORT_OP_RANGE;
+
+               if (!port->op)
+                       continue;
+
+               if (++a >= argc)
+               {
+                       cli_print(cli, "Specify port");
+                       return NULL;
+               }
+
+               if (!(port->port = atoi(argv[a])))
+               {
+                       cli_print(cli, "Invalid port \"%s\"", argv[a]);
+                       return NULL;
+               }
+                       
+               a++;
+               if (port->op != FILTER_PORT_OP_RANGE)
+                       continue;
+
+               if (a >= argc)
+               {
+                       cli_print(cli, "Specify port");
+                       return NULL;
+               }
+
+               if (!(port->port2 = atoi(argv[a])) || port->port2 < port->port)
+               {
+                       cli_print(cli, "Invalid port \"%s\"", argv[a]);
+                       return NULL;
+               }
+                       
+               a++;
+       }
+
+       if (rule.proto == IPPROTO_TCP && a < argc)
+       {
+               if (MATCH("established", argv[a]))
+               {
+                       rule.tcp_flag_op = FILTER_FLAG_OP_EST;
+                       a++;
+               }
+               else if (!strcmp(argv[a], "match-any") || !strcmp(argv[a], "match-an") ||
+                        !strcmp(argv[a], "match-all") || !strcmp(argv[a], "match-al"))
+               {
+                       rule.tcp_flag_op = argv[a][7] == 'n'
+                               ? FILTER_FLAG_OP_ANY
+                               : FILTER_FLAG_OP_ALL;
+
+                       if (++a >= argc)
+                       {
+                               cli_print(cli, "Specify tcp flags");
+                               return NULL;
+                       }
+
+                       while (a < argc && (argv[a][0] == '+' || argv[a][0] == '-'))
+                       {
+                               uint8_t *f;
+
+                               f = (argv[a][0] == '+') ? &rule.tcp_sflags : &rule.tcp_cflags;
+
+                               if (MATCH("fin", &argv[a][1]))      *f |= TCP_FLAG_FIN;
+                               else if (MATCH("syn", &argv[a][1])) *f |= TCP_FLAG_SYN;
+                               else if (MATCH("rst", &argv[a][1])) *f |= TCP_FLAG_RST;
+                               else if (MATCH("psh", &argv[a][1])) *f |= TCP_FLAG_PSH;
+                               else if (MATCH("ack", &argv[a][1])) *f |= TCP_FLAG_ACK;
+                               else if (MATCH("urg", &argv[a][1])) *f |= TCP_FLAG_URG;
+                               else
+                               {
+                                       cli_print(cli, "Invalid tcp flag \"%s\"", argv[a]);
+                                       return NULL;
+                               }
+
+                               a++;
+                       }
+               }
+       }
+
+       if (a < argc && MATCH("fragments", argv[a]))
+       {
+               if (rule.src_ports.op || rule.dst_ports.op || rule.tcp_flag_op)
+               {
+                       cli_print(cli, "Can't specify \"fragments\" on rules with layer 4 matches");
+                       return NULL;
+               }
+
+               rule.frag = 1;
+               a++;
+       }
+
+       if (a < argc)
+       {
+               cli_print(cli, "Invalid flag \"%s\"", argv[a]);
+               return NULL;
+       }
+
+       return &rule;
+}
+
+ip_filter_rulet *access_list_rule_std(struct cli_def *cli, char *command, char **argv, int argc)
+{
+       static ip_filter_rulet rule;
+       struct in_addr addr;
+
+       if (CLI_HELP_REQUESTED)
+       {
+               if (argc == 1)
+               {
+                       cli_arg_help(cli, argv[0][1],
+                               "A.B.C.D", "Source address",
+                               "any",     "Any source address",
+                               "host",    "Source host",
+                               NULL);
+
+                       return NULL;
+               }
+
+               if (MATCH("any", argv[0]))
+               {
+                       if (argc == 2 && !argv[1][1])
+                               cli_arg_help(cli, 1, NULL);
+               }
+               else if (MATCH("host", argv[0]))
+               {
+                       if (argc == 2)
+                       {
+                               cli_arg_help(cli, argv[1][1],
+                                       "A.B.C.D", "Host address",
+                                       NULL);
+                       }
+                       else if (argc == 3 && !argv[2][1])
+                               cli_arg_help(cli, 1, NULL);
+               }
+               else
+               {
+                       if (argc == 2)
+                       {
+                               cli_arg_help(cli, 1,
+                                       "A.B.C.D", "Wildcard bits",
+                                       NULL);
+                       }
+                       else if (argc == 3 && !argv[2][1])
+                               cli_arg_help(cli, 1, NULL);
+               }
+
+               return NULL;
+       }
+
+       if (argc < 1)
+       {
+               cli_print(cli, "Specify rule details");
+               return NULL;
+       }
+
+       memset(&rule, 0, sizeof(rule));
+       rule.action = (command[0] == 'p')
+               ? FILTER_ACTION_PERMIT
+               : FILTER_ACTION_DENY;
+
+       rule.proto = IPPROTO_IP;
+       if (MATCH("any", argv[0]))
+       {
+               rule.src_ip = INADDR_ANY;
+               rule.src_wild = INADDR_BROADCAST;
+       }
+       else if (MATCH("host", argv[0]))
+       {
+               if (argc != 2)
+               {
+                       cli_print(cli, "Specify host ip address");
+                       return NULL;
+               }
+
+               if (!inet_aton(argv[1], &addr))
+               {
+                       cli_print(cli, "Cannot parse IP \"%s\"", argv[1]);
+                       return NULL;
+               }
+
+               rule.src_ip = addr.s_addr;
+               rule.src_wild = INADDR_ANY;
+       }
+       else
+       {
+               if (argc > 2)
+               {
+                       cli_print(cli, "Specify source ip address and wildcard");
+                       return NULL;
+               }
+
+               if (!inet_aton(argv[0], &addr))
+               {
+                       cli_print(cli, "Cannot parse IP \"%s\"", argv[0]);
+                       return NULL;
+               }
+
+               rule.src_ip = addr.s_addr;
+
+               if (argc > 1)
+               {
+                       if (!inet_aton(argv[1], &addr))
+                       {
+                               cli_print(cli, "Cannot parse IP \"%s\"", argv[1]);
+                               return NULL;
+                       }
+
+                       rule.src_wild = addr.s_addr;
+               }
+               else
+                       rule.src_wild = INADDR_ANY;
+       }
+
+       return &rule;
+}
+
+static int cmd_ip_access_list_rule(struct cli_def *cli, char *command, char **argv, int argc)
+{
+       int i;
+       ip_filter_rulet *rule = ip_filters[filt].extended
+               ? access_list_rule_ext(cli, command, argv, argc)
+               : access_list_rule_std(cli, command, argv, argc);
+
+       if (!rule)
+               return CLI_OK;
+
+       for (i = 0; i < MAXFILTER_RULES - 1; i++) // -1: list always terminated by empty rule
+       {
+               if (!ip_filters[filt].rules[i].action)
+               {
+                       memcpy(&ip_filters[filt].rules[i], rule, sizeof(*rule));
+                       return CLI_OK;
+               }
+
+               if (!memcmp(&ip_filters[filt].rules[i], rule, sizeof(*rule)))
+                       return CLI_OK;
+       }
+
+       cli_print(cli, "Too many rules");
+       return CLI_OK;
+}
+
+static int cmd_filter(struct cli_def *cli, char *command, char **argv, int argc)
+{
+       sessionidt s;
+       int i;
+
+       /* filter USER {in|out} FILTER ... */
+       if (CLI_HELP_REQUESTED)
+       {
+               switch (argc)
+               {
+               case 1:
+                       return cli_arg_help(cli, 0,
+                               "USER", "Username of session to filter", NULL);
+
+               case 2:
+               case 4:
+                       return cli_arg_help(cli, 0,
+                               "in",   "Set incoming filter",
+                               "out",  "Set outgoing filter", NULL);
+
+               case 3:
+               case 5:
+                       return cli_arg_help(cli, argc == 5 && argv[4][1],
+                               "NAME", "Filter name", NULL);
+
+               default:
+                       return cli_arg_help(cli, argc > 1, NULL);
+               }
+       }
+
+       if (!config->cluster_iam_master)
+       {
+               cli_print(cli, "Can't do this on a slave.  Do it on %s",
+                       fmtaddr(config->cluster_master_address, 0));
+
+               return CLI_OK;
+       }
+
+       if (argc != 3 && argc != 5)
+       {
+               cli_print(cli, "Specify a user and filters");
+               return CLI_OK;
+       }
+
+       if (!(s = sessionbyuser(argv[0])))
+       {
+               cli_print(cli, "User %s is not connected", argv[0]);
+               return CLI_OK;
+       }
+
+       cli_session_actions[s].filter_in = cli_session_actions[s].filter_out = -1;
+       for (i = 1; i < argc; i += 2)
+       {
+               int *f = 0;
+               int v;
+
+               if (MATCH("in", argv[i]))
+               {
+                       if (session[s].filter_in)
+                       {
+                               cli_print(cli, "Input already filtered");
+                               return CLI_OK;
+                       }
+                       f = &cli_session_actions[s].filter_in;
+               }
+               else if (MATCH("out", argv[i]))
+               {
+                       if (session[s].filter_out)
+                       {
+                               cli_print(cli, "Output already filtered");
+                               return CLI_OK;
+                       }
+                       f = &cli_session_actions[s].filter_out;
+               }
+               else
+               {
+                       cli_print(cli, "Invalid filter specification");
+                       return CLI_OK;
+               }
+
+               v = find_access_list(argv[i+1]);
+               if (v < 0 || !*ip_filters[v].name)
+               {
+                       cli_print(cli, "Access-list %s not defined", argv[i+1]);
+                       return CLI_OK;
+               }
+
+               *f = v + 1;
+       }
+
+       cli_print(cli, "Filtering user %s", argv[0]);
+       cli_session_actions[s].action |= CLI_SESS_FILTER;
+
+       return CLI_OK;
+}
+
+static int cmd_no_filter(struct cli_def *cli, char *command, char **argv, int argc)
+{
+       int i;
+       sessionidt s;
+
+       if (CLI_HELP_REQUESTED)
+               return cli_arg_help(cli, argc > 1,
+                       "USER", "Username of session to remove filters from", NULL);
+
+       if (!config->cluster_iam_master)
+       {
+               cli_print(cli, "Can't do this on a slave.  Do it on %s",
+                       fmtaddr(config->cluster_master_address, 0));
+
+               return CLI_OK;
+       }
+
+       if (!argc)
+       {
+               cli_print(cli, "Specify a user to remove filters from");
+               return CLI_OK;
+       }
+
+       for (i = 0; i < argc; i++)
+       {
+               if (!(s = sessionbyuser(argv[i])))
+               {
+                       cli_print(cli, "User %s is not connected", argv[i]);
+                       continue;
+               }
+
+               if (session[s].filter_in || session[s].filter_out)
+               {
+                       cli_print(cli, "Removing filters from user %s", argv[i]);
+                       cli_session_actions[s].action |= CLI_SESS_NOFILTER;
+               }
+               else
+               {
+                       cli_print(cli, "User %s not filtered", argv[i]);
+               }
+       }
+
+       return CLI_OK;
+}
+
+static int cmd_show_access_list(struct cli_def *cli, char *command, char **argv, int argc)
+{
+       int i;
+
+       if (CLI_HELP_REQUESTED)
+               return cli_arg_help(cli, argc > 1, "NAME", "Filter name", NULL);
+
+       if (argc < 1)
+       {
+               cli_print(cli, "Specify a filter name");
+               return CLI_OK;
+       }
+
+       for (i = 0; i < argc; i++)
+       {
+               int f = find_access_list(argv[i]);
+               ip_filter_rulet *rules;
+
+               if (f < 0 || !*ip_filters[f].name)
+               {
+                       cli_print(cli, "Access-list %s not defined", argv[i]);
+                       return CLI_OK;
+               }
+
+               if (i)
+                       cli_print(cli, "");
+
+               cli_print(cli, "%s IP access list %s",
+                       ip_filters[f].extended ? "Extended" : "Standard",
+                       ip_filters[f].name);
+
+               for (rules = ip_filters[f].rules; rules->action; rules++)
+               {
+                       char const *r = show_access_list_rule(ip_filters[f].extended, rules);
+                       if (rules->counter)
+                               cli_print(cli, "%s (%d match%s)", r,
+                                       rules->counter, rules->counter > 1 ? "es" : "");
+                       else
+                               cli_print(cli, "%s", r);
+               }
+       }
+
+       return CLI_OK;
+}
+
 // Convert a string in the form of abcd.ef12.3456 into char[6]
 void parsemac(char *string, char mac[6])
 {