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l2tpns/cli.c
bodea 560fad4be9 unused: sessiont.{ns,nr}
2005-12-05 14:10:42 +00:00

3088 lines
79 KiB
C
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// L2TPNS Command Line Interface
// vim: sw=8 ts=8
char const *cvs_name = "$Name: $";
char const *cvs_id_cli = "$Id: cli.c,v 1.69 2005/12/05 14:10:42 bodea Exp $";
#include <stdio.h>
#include <stddef.h>
#include <stdarg.h>
#include <unistd.h>
#include <sys/file.h>
#include <sys/stat.h>
#include <syslog.h>
#include <malloc.h>
#include <string.h>
#include <ctype.h>
#include <stdlib.h>
#include <time.h>
#include <arpa/inet.h>
#include <errno.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <signal.h>
#include <dlfcn.h>
#include <netdb.h>
#include <libcli.h>
#include "l2tpns.h"
#include "constants.h"
#include "util.h"
#include "cluster.h"
#include "tbf.h"
#include "ll.h"
#ifdef BGP
#include "bgp.h"
#endif
extern tunnelt *tunnel;
extern sessiont *session;
extern radiust *radius;
extern ippoolt *ip_address_pool;
extern struct Tstats *_statistics;
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;
struct
{
char critical;
char error;
char warning;
char info;
char calls;
char data;
} debug_flags;
#ifdef RINGBUFFER
static int debug_rb_tail;
static char *debug_levels[] = {
"CRIT",
"ERROR",
"WARN",
"INFO",
"CALL",
"DATA",
};
#endif
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);
static int cmd_show_users(struct cli_def *cli, char *command, char **argv, int argc);
static int cmd_show_radius(struct cli_def *cli, char *command, char **argv, int argc);
static int cmd_show_version(struct cli_def *cli, char *command, char **argv, int argc);
static int cmd_show_pool(struct cli_def *cli, char *command, char **argv, int argc);
static int cmd_show_run(struct cli_def *cli, char *command, char **argv, int argc);
static int cmd_show_banana(struct cli_def *cli, char *command, char **argv, int argc);
static int cmd_show_plugins(struct cli_def *cli, char *command, char **argv, int argc);
static int cmd_show_throttle(struct cli_def *cli, char *command, char **argv, int argc);
static int cmd_write_memory(struct cli_def *cli, char *command, char **argv, int argc);
static int cmd_drop_user(struct cli_def *cli, char *command, char **argv, int argc);
static int cmd_drop_tunnel(struct cli_def *cli, char *command, char **argv, int argc);
static int cmd_drop_session(struct cli_def *cli, char *command, char **argv, int argc);
static int cmd_snoop(struct cli_def *cli, char *command, char **argv, int argc);
static int cmd_no_snoop(struct cli_def *cli, char *command, char **argv, int argc);
static int cmd_throttle(struct cli_def *cli, char *command, char **argv, int argc);
static int cmd_no_throttle(struct cli_def *cli, char *command, char **argv, int argc);
static int cmd_debug(struct cli_def *cli, char *command, char **argv, int argc);
static int cmd_no_debug(struct cli_def *cli, char *command, char **argv, int argc);
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]);
#ifdef STATISTICS
static int cmd_show_counters(struct cli_def *cli, char *command, char **argv, int argc);
static int cmd_clear_counters(struct cli_def *cli, char *command, char **argv, int argc);
#endif /* STATISTICS */
#ifdef BGP
#define MODE_CONFIG_BGP 8
static int cmd_router_bgp(struct cli_def *cli, char *command, char **argv, int argc);
static int cmd_router_bgp_neighbour(struct cli_def *cli, char *command, char **argv, int argc);
static int cmd_router_bgp_no_neighbour(struct cli_def *cli, char *command, char **argv, int argc);
static int cmd_show_bgp(struct cli_def *cli, char *command, char **argv, int argc);
static int cmd_suspend_bgp(struct cli_def *cli, char *command, char **argv, int argc);
static int cmd_no_suspend_bgp(struct cli_def *cli, char *command, char **argv, int argc);
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;
char buf[4096];
struct cli_command *c;
struct cli_command *c2;
int on = 1;
struct sockaddr_in addr;
cli = cli_init();
if (hostname && *hostname)
cli_set_hostname(cli, hostname);
else
cli_set_hostname(cli, "l2tpns");
c = cli_register_command(cli, NULL, "show", NULL, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, NULL);
cli_register_command(cli, c, "banana", cmd_show_banana, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "Show a banana");
#ifdef BGP
cli_register_command(cli, c, "bgp", cmd_show_bgp, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "Show BGP status");
#endif /* BGP */
cli_register_command(cli, c, "cluster", cmd_show_cluster, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "Show cluster information");
cli_register_command(cli, c, "ipcache", cmd_show_ipcache, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "Show contents of the IP cache");
cli_register_command(cli, c, "plugins", cmd_show_plugins, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "List all installed plugins");
cli_register_command(cli, c, "pool", cmd_show_pool, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "Show the IP address allocation pool");
cli_register_command(cli, c, "radius", cmd_show_radius, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "Show active radius queries");
cli_register_command(cli, c, "running-config", cmd_show_run, PRIVILEGE_PRIVILEGED, MODE_EXEC, "Show the currently running configuration");
cli_register_command(cli, c, "session", cmd_show_session, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "Show a list of sessions or details for a single session");
cli_register_command(cli, c, "tbf", cmd_show_tbf, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "List all token bucket filters in use");
cli_register_command(cli, c, "throttle", cmd_show_throttle, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "List all throttled sessions and associated TBFs");
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");
cli_register_command(cli, c2, "open", cmd_show_hist_open, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "Show histogram of session durations");
#ifdef STATISTICS
cli_register_command(cli, c, "counters", cmd_show_counters, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "Display all the internal counters and running totals");
c = cli_register_command(cli, NULL, "clear", NULL, PRIVILEGE_PRIVILEGED, MODE_EXEC, NULL);
cli_register_command(cli, c, "counters", cmd_clear_counters, PRIVILEGE_PRIVILEGED, MODE_EXEC, "Clear internal counters");
#endif
cli_register_command(cli, NULL, "uptime", cmd_uptime, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "Show uptime and bandwidth utilisation");
c = cli_register_command(cli, NULL, "write", NULL, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, NULL);
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, "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
c = cli_register_command(cli, NULL, "suspend", NULL, PRIVILEGE_PRIVILEGED, MODE_EXEC, NULL);
cli_register_command(cli, c, "bgp", cmd_suspend_bgp, PRIVILEGE_PRIVILEGED, MODE_EXEC, "Withdraw routes from BGP neighbour");
#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, "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
c2 = cli_register_command(cli, c, "suspend", NULL, PRIVILEGE_PRIVILEGED, MODE_EXEC, NULL);
cli_register_command(cli, c2, "bgp", cmd_no_suspend_bgp, PRIVILEGE_PRIVILEGED, MODE_EXEC, "Advertise routes to BGP neighbour");
c = cli_register_command(cli, NULL, "restart", NULL, PRIVILEGE_PRIVILEGED, MODE_EXEC, NULL);
cli_register_command(cli, c, "bgp", cmd_restart_bgp, PRIVILEGE_PRIVILEGED, MODE_EXEC, "Restart BGP");
c = cli_register_command(cli, NULL, "router", NULL, PRIVILEGE_PRIVILEGED, MODE_CONFIG, NULL);
cli_register_command(cli, c, "bgp", cmd_router_bgp, PRIVILEGE_PRIVILEGED, MODE_CONFIG, "Configure BGP");
cli_register_command(cli, NULL, "neighbour", cmd_router_bgp_neighbour, PRIVILEGE_PRIVILEGED, MODE_CONFIG_BGP, "Configure BGP neighbour");
c = cli_register_command(cli, NULL, "no", NULL, PRIVILEGE_PRIVILEGED, MODE_CONFIG_BGP, NULL);
cli_register_command(cli, c, "neighbour", cmd_router_bgp_no_neighbour, PRIVILEGE_PRIVILEGED, MODE_CONFIG_BGP, "Remove BGP neighbour");
#endif /* BGP */
c = cli_register_command(cli, NULL, "drop", NULL, PRIVILEGE_PRIVILEGED, MODE_EXEC, NULL);
cli_register_command(cli, c, "user", cmd_drop_user, PRIVILEGE_PRIVILEGED, MODE_EXEC, "Disconnect a user");
cli_register_command(cli, c, "tunnel", cmd_drop_tunnel, PRIVILEGE_PRIVILEGED, MODE_EXEC, "Disconnect a tunnel and all sessions on that tunnel");
cli_register_command(cli, c, "session", cmd_drop_session, PRIVILEGE_PRIVILEGED, MODE_EXEC, "Disconnect a session");
c = cli_register_command(cli, NULL, "load", NULL, PRIVILEGE_PRIVILEGED, MODE_CONFIG, NULL);
cli_register_command(cli, c, "plugin", cmd_load_plugin, PRIVILEGE_PRIVILEGED, MODE_CONFIG, "Load a plugin");
c = cli_register_command(cli, NULL, "remove", NULL, PRIVILEGE_PRIVILEGED, MODE_CONFIG, NULL);
cli_register_command(cli, c, "plugin", cmd_remove_plugin, PRIVILEGE_PRIVILEGED, MODE_CONFIG, "Remove a plugin");
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, "WARNING! No users specified. Command-line access is open to all\n");
}
else
{
while (fgets(buf, 4096, f))
{
char *p;
if (*buf == '#') continue;
if ((p = strchr(buf, '\r'))) *p = 0;
if ((p = strchr(buf, '\n'))) *p = 0;
if (!*buf) continue;
if (!(p = strchr((char *)buf, ':'))) continue;
*p++ = 0;
if (!strcmp(buf, "enable"))
{
cli_allow_enable(cli, p);
LOG(3, 0, 0, "Setting enable password\n");
}
else
{
cli_allow_user(cli, buf, p);
LOG(3, 0, 0, "Allowing user %s to connect to the CLI\n", buf);
}
}
fclose(f);
}
memset(&addr, 0, sizeof(addr));
clifd = socket(PF_INET, SOCK_STREAM, 6);
setsockopt(clifd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
{
int flags;
// Set cli fd as non-blocking
flags = fcntl(clifd, F_GETFL, 0);
fcntl(clifd, F_SETFL, flags | O_NONBLOCK);
}
addr.sin_family = AF_INET;
addr.sin_port = htons(23);
if (bind(clifd, (void *) &addr, sizeof(addr)) < 0)
{
LOG(0, 0, 0, "Error listening on cli port 23: %s\n", strerror(errno));
return;
}
listen(clifd, 10);
}
void cli_do(int sockfd)
{
int require_auth = 1;
struct sockaddr_in addr;
socklen_t l = sizeof(addr);
if (fork_and_close()) return;
if (getpeername(sockfd, (struct sockaddr *) &addr, &l) == 0)
{
require_auth = addr.sin_addr.s_addr != inet_addr("127.0.0.1");
LOG(require_auth ? 3 : 4, 0, 0, "Accepted connection to CLI from %s\n",
fmtaddr(addr.sin_addr.s_addr, 0));
}
else
LOG(0, 0, 0, "getpeername() failed on cli socket. Requiring authentication: %s\n", strerror(errno));
if (require_auth)
{
LOG(3, 0, 0, "CLI is remote, requiring authentication\n");
if (!cli->users) /* paranoia */
{
LOG(0, 0, 0, "No users for remote authentication! Exiting CLI\n");
exit(0);
}
}
else
{
/* no username/pass required */
cli->users = 0;
}
#ifdef RINGBUFFER
debug_rb_tail = ringbuffer->tail;
#endif
memset(&debug_flags, 0, sizeof(debug_flags));
debug_flags.critical = 1;
cli_loop(cli, sockfd);
close(sockfd);
LOG(require_auth ? 3 : 4, 0, 0, "Closed CLI connection from %s\n",
fmtaddr(addr.sin_addr.s_addr, 0));
exit(0);
}
static void cli_print_log(struct cli_def *cli, char *string)
{
LOG(3, 0, 0, "%s\n", string);
}
void cli_do_file(FILE *fh)
{
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);
}
int cli_arg_help(struct cli_def *cli, int cr_ok, char *entry, ...)
{
va_list ap;
char *desc;
char buf[16];
char *p;
va_start(ap, entry);
while (entry)
{
/* allow one %d */
if ((p = strchr(entry, '%')) && !strchr(p+1, '%') && p[1] == 'd')
{
int v = va_arg(ap, int);
snprintf(buf, sizeof(buf), entry, v);
p = buf;
}
else
p = entry;
desc = va_arg(ap, char *);
if (desc && *desc)
cli_error(cli, " %-20s %s", p, desc);
else
cli_error(cli, " %s", p);
entry = desc ? va_arg(ap, char *) : 0;
}
va_end(ap);
if (cr_ok)
cli_error(cli, " <cr>");
return CLI_OK;
}
static int cmd_show_session(struct cli_def *cli, char *command, char **argv, int argc)
{
int i;
if (CLI_HELP_REQUESTED)
return cli_arg_help(cli, 1,
"<1-%d>", MAXSESSION-1, "Show specific session by id",
NULL);
time(&time_now);
if (argc > 0)
{
// Show individual session
for (i = 0; i < argc; i++)
{
unsigned int s, b_in, b_out;
s = atoi(argv[i]);
if (s <= 0 || s >= MAXSESSION)
{
cli_print(cli, "Invalid session id \"%s\"", argv[i]);
continue;
}
cli_print(cli, "\r\nSession %d:", s);
cli_print(cli, "\tUser:\t\t%s", session[s].user[0] ? session[s].user : "none");
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, "\tPPP Phase:\t%s", ppp_phase(session[s].ppp.phase));
switch (session[s].ppp.phase)
{
case Establish:
cli_print(cli, "\t LCP state:\t%s", ppp_state(session[s].ppp.lcp));
break;
case Authenticate:
case Network:
cli_print(cli, "\t IPCP state:\t%s", ppp_state(session[s].ppp.ipcp));
cli_print(cli, "\t IPV6CP state:\t%s", ppp_state(session[s].ppp.ipv6cp));
cli_print(cli, "\t CCP state:\t%s", ppp_state(session[s].ppp.ccp));
}
cli_print(cli, "\tIP address:\t%s", fmtaddr(htonl(session[s].ip), 0));
cli_print(cli, "\tUnique SID:\t%u", session[s].unique_id);
cli_print(cli, "\tOpened:\t\t%u seconds", session[s].opened ? abs(time_now - session[s].opened) : 0);
cli_print(cli, "\tIdle time:\t%u seconds", session[s].last_packet ? abs(time_now - session[s].last_packet) : 0);
cli_print(cli, "\tBytes In/Out:\t%u/%u", session[s].cout, session[s].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, "\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", fmtaddr(session[s].snoop_ip, 0), session[s] .snoop_port);
else
cli_print(cli, "\tIntercepted:\tno");
cli_print(cli, "\tWalled Garden:\t%s", session[s].walled_garden ? "YES" : "no");
{
int t = (session[s].throttle_in || session[s].throttle_out);
cli_print(cli, "\tThrottled:\t%s%s%.0d%s%s%.0d%s%s",
t ? "YES" : "no", t ? " (" : "",
session[s].throttle_in, session[s].throttle_in ? "kbps" : t ? "-" : "",
t ? "/" : "",
session[s].throttle_out, session[s].throttle_out ? "kbps" : t ? "-" : "",
t ? ")" : "");
}
b_in = session[s].tbf_in;
b_out = session[s].tbf_out;
if (b_in || b_out)
cli_print(cli, "\t\t\t%5s %6s %6s | %7s %7s %8s %8s %8s %8s",
"Rate", "Credit", "Queued", "ByteIn", "PackIn",
"ByteSent", "PackSent", "PackDrop", "PackDelay");
if (b_in)
cli_print(cli, "\tTBFI#%d%1s%s\t%5d %6d %6d | %7d %7d %8d %8d %8d %8d",
b_in,
(filter_list[b_in].next ? "*" : " "),
(b_in < 100 ? "\t" : ""),
filter_list[b_in].rate * 8,
filter_list[b_in].credit,
filter_list[b_in].queued,
filter_list[b_in].b_queued,
filter_list[b_in].p_queued,
filter_list[b_in].b_sent,
filter_list[b_in].p_sent,
filter_list[b_in].p_dropped,
filter_list[b_in].p_delayed);
if (b_out)
cli_print(cli, "\tTBFO#%d%1s%s\t%5d %6d %6d | %7d %7d %8d %8d %8d %8d",
b_out,
(filter_list[b_out].next ? "*" : " "),
(b_out < 100 ? "\t" : ""),
filter_list[b_out].rate * 8,
filter_list[b_out].credit,
filter_list[b_out].queued,
filter_list[b_out].b_queued,
filter_list[b_out].p_queued,
filter_list[b_out].b_sent,
filter_list[b_out].p_sent,
filter_list[b_out].p_dropped,
filter_list[b_out].p_delayed);
}
return CLI_OK;
}
// Show Summary
cli_print(cli, "%5s %4s %-32s %-15s %s %s %s %s %10s %10s %10s %4s %-15s %s",
"SID",
"TID",
"Username",
"IP",
"I",
"T",
"G",
"6",
"opened",
"downloaded",
"uploaded",
"idle",
"LAC",
"CLI");
for (i = 1; i < MAXSESSION; i++)
{
if (!session[i].opened) continue;
cli_print(cli, "%5d %4d %-32s %-15s %s %s %s %s %10u %10lu %10lu %4u %-15s %s",
i,
session[i].tunnel,
session[i].user[0] ? session[i].user : "*",
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",
(session[i].ppp.ipv6cp == Opened) ? "Y" : "N",
abs(time_now - (unsigned long)session[i].opened),
(unsigned long)session[i].cout,
(unsigned long)session[i].cin,
abs(time_now - (session[i].last_packet ? session[i].last_packet : time_now)),
fmtaddr(htonl(tunnel[ session[i].tunnel ].ip), 1),
session[i].calling[0] ? session[i].calling : "*");
}
return CLI_OK;
}
static int cmd_show_tunnels(struct cli_def *cli, char *command, char **argv, int argc)
{
int i, x, show_all = 0;
char *states[] = {
"Free",
"Open",
"Closing",
"Opening",
};
if (CLI_HELP_REQUESTED)
{
if (argc > 1)
return cli_arg_help(cli, 1,
"<1-%d>", MAXTUNNEL-1, "Show specific tunnel by id",
NULL);
return cli_arg_help(cli, 1,
"all", "Show all tunnels, including unused",
"<1-%d>", MAXTUNNEL-1, "Show specific tunnel by id",
NULL);
}
time(&time_now);
if (argc > 0)
{
if (strcmp(argv[0], "all") == 0)
{
show_all = 1;
}
else
{
// Show individual tunnel
for (i = 0; i < argc; i++)
{
char s[65535] = {0};
unsigned int t;
t = atoi(argv[i]);
if (t <= 0 || t >= MAXTUNNEL)
{
cli_print(cli, "Invalid tunnel id \"%s\"", argv[i]);
continue;
}
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", 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);
cli_print(cli, "\tNext Send:\t%u", tunnel[t].ns);
cli_print(cli, "\tQueue Len:\t%u", tunnel[t].controlc);
cli_print(cli, "\tLast Packet Age:%u", (unsigned)(time_now - tunnel[t].last));
for (x = 0; x < MAXSESSION; x++)
if (session[x].tunnel == t && session[x].opened && !session[x].die)
sprintf(s, "%s%u ", s, x);
cli_print(cli, "\tSessions:\t%s", s);
}
return CLI_OK;
}
}
// Show tunnel summary
cli_print(cli, "%4s %20s %20s %6s %s",
"TID",
"Hostname",
"IP",
"State",
"Sessions");
for (i = 1; i < MAXTUNNEL; i++)
{
int sessions = 0;
if (!show_all && (!tunnel[i].ip || tunnel[i].die)) continue;
for (x = 0; x < MAXSESSION; x++) if (session[x].tunnel == i && session[x].opened && !session[x].die) sessions++;
cli_print(cli, "%4d %20s %20s %6s %6d",
i,
*tunnel[i].hostname ? tunnel[i].hostname : "(null)",
fmtaddr(htonl(tunnel[i].ip), 0),
states[tunnel[i].state],
sessions);
}
return CLI_OK;
}
static int cmd_show_users(struct cli_def *cli, char *command, char **argv, int argc)
{
char sid[32][8];
char *sargv[32];
int sargc = 0;
int i;
if (CLI_HELP_REQUESTED)
return cli_arg_help(cli, 1,
"USER", "Show details for specific username",
NULL);
for (i = 0; i < MAXSESSION; i++)
{
if (!session[i].opened) continue;
if (!session[i].user[0]) continue;
if (argc > 0)
{
int j;
for (j = 0; j < argc && sargc < 32; j++)
{
if (strcmp(argv[j], session[i].user) == 0)
{
snprintf(sid[sargc], sizeof(sid[0]), "%d", i);
sargv[sargc] = sid[sargc];
sargc++;
}
}
continue;
}
cli_print(cli, "%s", session[i].user);
}
if (sargc > 0)
return cmd_show_session(cli, "users", sargv, sargc);
return CLI_OK;
}
#ifdef STATISTICS
static int cmd_show_counters(struct cli_def *cli, char *command, char **argv, int argc)
{
if (CLI_HELP_REQUESTED)
return CLI_HELP_NO_ARGS;
cli_print(cli, "%-10s %10s %10s %10s %10s", "Ethernet", "Bytes", "Packets", "Errors", "Dropped");
cli_print(cli, "%-10s %10u %10u %10u %10u", "RX",
GET_STAT(tun_rx_bytes),
GET_STAT(tun_rx_packets),
GET_STAT(tun_rx_errors),
GET_STAT(tun_rx_dropped));
cli_print(cli, "%-10s %10u %10u %10u", "TX",
GET_STAT(tun_tx_bytes),
GET_STAT(tun_tx_packets),
GET_STAT(tun_tx_errors));
cli_print(cli, "");
cli_print(cli, "%-10s %10s %10s %10s %10s", "Tunnel", "Bytes", "Packets", "Errors", "Retries");
cli_print(cli, "%-10s %10u %10u %10u", "RX",
GET_STAT(tunnel_rx_bytes),
GET_STAT(tunnel_rx_packets),
GET_STAT(tunnel_rx_errors));
cli_print(cli, "%-10s %10u %10u %10u %10u", "TX",
GET_STAT(tunnel_tx_bytes),
GET_STAT(tunnel_tx_packets),
GET_STAT(tunnel_tx_errors),
GET_STAT(tunnel_retries));
cli_print(cli, "");
cli_print(cli, "%-30s%-10s", "Counter", "Value");
cli_print(cli, "-----------------------------------------");
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 STAT_CALLS
cli_print(cli, "\n%-30s%-10s", "Counter", "Value");
cli_print(cli, "-----------------------------------------");
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_processipv6out", GET_STAT(call_processipv6out));
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_processipv6cp", GET_STAT(call_processipv6cp));
cli_print(cli, "%-30s%u", "call_processipin", GET_STAT(call_processipin));
cli_print(cli, "%-30s%u", "call_processipv6in", GET_STAT(call_processipv6in));
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_sessionbyipv6", GET_STAT(call_sessionbyipv6));
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));
cli_print(cli, "%-30s%u", "call_random_data", GET_STAT(call_random_data));
#endif /* STAT_CALLS */
{
time_t l = GET_STAT(last_reset);
char *t = ctime(&l);
char *p = strchr(t, '\n');
if (p) *p = 0;
cli_print(cli, "");
cli_print(cli, "Last counter reset %s", t);
}
return CLI_OK;
}
static int cmd_clear_counters(struct cli_def *cli, char *command, char **argv, int argc)
{
if (CLI_HELP_REQUESTED)
return CLI_HELP_NO_ARGS;
memset(_statistics, 0, sizeof(struct Tstats));
SET_STAT(last_reset, time(NULL));
cli_print(cli, "Counters cleared");
return CLI_OK;
}
#endif /* STATISTICS */
static int cmd_show_version(struct cli_def *cli, char *command, char **argv, int argc)
{
int tag = 0;
int file = 0;
int i = 0;
if (CLI_HELP_REQUESTED)
return cli_arg_help(cli, 1,
"tag", "Include CVS release tag",
"file", "Include file versions",
NULL);
for (i = 0; i < argc; i++)
if (!strcmp(argv[i], "tag"))
tag++;
else if (!strcmp(argv[i], "file"))
file++;
cli_print(cli, "L2TPNS %s", VERSION);
if (tag)
{
char const *p = strchr(cvs_name, ':');
char const *e;
if (p)
{
p++;
while (isspace(*p))
p++;
}
if (!p || *p == '$')
p = "HEAD";
e = strpbrk(p, " \t$");
cli_print(cli, "Tag: %.*s", (int) (e ? e - p + 1 : strlen(p)), p);
}
if (file)
{
extern linked_list *loaded_plugins;
void *p;
cli_print(cli, "Files:");
cli_print(cli, " %s", cvs_id_arp);
#ifdef BGP
cli_print(cli, " %s", cvs_id_bgp);
#endif /* BGP */
cli_print(cli, " %s", cvs_id_cli);
cli_print(cli, " %s", cvs_id_cluster);
cli_print(cli, " %s", cvs_id_constants);
cli_print(cli, " %s", cvs_id_control);
cli_print(cli, " %s", cvs_id_icmp);
cli_print(cli, " %s", cvs_id_l2tpns);
cli_print(cli, " %s", cvs_id_ll);
cli_print(cli, " %s", cvs_id_ppp);
cli_print(cli, " %s", cvs_id_radius);
cli_print(cli, " %s", cvs_id_tbf);
cli_print(cli, " %s", cvs_id_util);
ll_reset(loaded_plugins);
while ((p = ll_next(loaded_plugins)))
{
char const **id = dlsym(p, "cvs_id");
if (id)
cli_print(cli, " %s", *id);
}
}
return CLI_OK;
}
static int cmd_show_pool(struct cli_def *cli, char *command, char **argv, int argc)
{
int i;
int used = 0, free = 0, show_all = 0;
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 (CLI_HELP_REQUESTED)
{
if (argc > 1)
return cli_arg_help(cli, 1, NULL);
return cli_arg_help(cli, 1,
"all", "Show all pool addresses, including unused",
NULL);
}
if (argc > 0 && strcmp(argv[0], "all") == 0)
show_all = 1;
time(&time_now);
cli_print(cli, "%-15s %4s %8s %s", "IP Address", "Used", "Session", "User");
for (i = 0; i < MAXIPPOOL; i++)
{
if (!ip_address_pool[i].address) continue;
if (ip_address_pool[i].assigned)
{
cli_print(cli, "%-15s\tY %8d %s",
fmtaddr(htonl(ip_address_pool[i].address), 0),
ip_address_pool[i].session,
session[ip_address_pool[i].session].user);
used++;
}
else
{
if (ip_address_pool[i].last)
cli_print(cli, "%-15s\tN %8s [%s] %ds",
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", fmtaddr(htonl(ip_address_pool[i].address), 0));
free++;
}
}
if (!show_all)
cli_print(cli, "(Not displaying unused addresses)");
cli_print(cli, "\r\nFree: %d\r\nUsed: %d", free, used);
return CLI_OK;
}
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);
}
static int cmd_write_memory(struct cli_def *cli, char *command, char **argv, int argc)
{
if (CLI_HELP_REQUESTED)
return CLI_HELP_NO_ARGS;
if ((save_config_fh = fopen(config->config_file, "w")))
{
cli_print(cli, "Writing configuration");
cli_print_callback(cli, print_save_config);
cmd_show_run(cli, command, argv, argc);
cli_print_callback(cli, NULL);
fclose(save_config_fh);
save_config_fh = 0;
}
else
{
cli_error(cli, "Error writing configuration: %s", strerror(errno));
}
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;
cli_print(cli, "# Current configuration:");
for (i = 0; config_values[i].key; i++)
{
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 == 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);
else if (config_values[i].type == BOOL)
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);
else if (config_values[i].type == UNSIGNED_LONG)
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));
}
cli_print(cli, "# Plugins");
for (i = 0; i < MAXPLUGINS; i++)
{
if (*config->plugins[i])
{
cli_print(cli, "load plugin \"%s\"", config->plugins[i]);
}
}
#ifdef BGP
if (config->as_number)
{
int k;
int h;
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);
k = config->neighbour[i].keepalive;
h = config->neighbour[i].hold;
if (k == -1)
{
if (h == -1)
continue;
k = BGP_KEEPALIVE_TIME;
}
if (h == -1)
h = BGP_HOLD_TIME;
cli_print(cli, " neighbour %s timers %d %d", config->neighbour[i].name, k, h);
}
}
#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;
}
static int cmd_show_radius(struct cli_def *cli, char *command, char **argv, int argc)
{
int i, free = 0, used = 0, show_all = 0;
char *states[] = {
"NULL",
"CHAP",
"AUTH",
"IPCP",
"START",
"STOP",
"INTRM",
"WAIT",
};
if (CLI_HELP_REQUESTED)
{
if (argc > 1)
return cli_arg_help(cli, 1, NULL);
return cli_arg_help(cli, 1,
"all", "Show all RADIUS sessions, including unused",
NULL);
}
cli_print(cli, "%6s%7s%5s%6s%9s%9s%4s", "ID", "Radius", "Sock", "State", "Session", "Retry", "Try");
time(&time_now);
if (argc > 0 && strcmp(argv[0], "all") == 0)
show_all = 1;
for (i = 1; i < MAXRADIUS; i++)
{
if (radius[i].state == RADIUSNULL)
free++;
else
used++;
if (!show_all && radius[i].state == RADIUSNULL) continue;
cli_print(cli, "%6d%7d%5d%6s%9d%9u%4d",
i,
i >> RADIUS_SHIFT,
i & RADIUS_MASK,
states[radius[i].state],
radius[i].session,
radius[i].retry,
radius[i].try);
}
cli_print(cli, "\r\nFree: %d\r\nUsed: %d", free, used);
return CLI_OK;
}
static int cmd_show_plugins(struct cli_def *cli, char *command, char **argv, int argc)
{
int i;
if (CLI_HELP_REQUESTED)
return CLI_HELP_NO_ARGS;
cli_print(cli, "Plugins currently loaded:");
for (i = 0; i < MAXPLUGINS; i++)
if (*config->plugins[i])
cli_print(cli, " %s", config->plugins[i]);
return CLI_OK;
}
static int cmd_show_throttle(struct cli_def *cli, char *command, char **argv, int argc)
{
int i;
if (CLI_HELP_REQUESTED)
return CLI_HELP_NO_ARGS;
cli_print(cli, "%5s %4s %-32s %7s %6s %6s %6s",
"SID",
"TID",
"Username",
"Rate In",
"Out",
"TBFI",
"TBFO");
for (i = 0; i < MAXSESSION; i++)
{
if (session[i].throttle_in || session[i].throttle_out)
cli_print(cli, "%5d %4d %-32s %6d %6d %6d %6d",
i,
session[i].tunnel,
session[i].user,
session[i].throttle_in,
session[i].throttle_out,
session[i].tbf_in,
session[i].tbf_out);
}
return CLI_OK;
}
static int cmd_show_banana(struct cli_def *cli, char *command, char **argv, int argc)
{
if (CLI_HELP_REQUESTED)
return CLI_HELP_NO_ARGS;
cli_print(cli, " _\n"
"//\\\n"
"V \\\n"
" \\ \\_\n"
" \\,'.`-.\n"
" |\\ `. `.\n"
" ( \\ `. `-. _,.-:\\\n"
" \\ \\ `. `-._ __..--' ,-';/\n"
" \\ `. `-. `-..___..---' _.--' ,'/\n"
" `. `. `-._ __..--' ,' /\n"
" `. `-_ ``--..'' _.-' ,'\n"
" `-_ `-.___ __,--' ,'\n"
" `-.__ `----\"\"\" __.-'\n"
"hh `--..____..--'");
return CLI_OK;
}
static int cmd_drop_user(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 drop", NULL);
if (!config->cluster_iam_master)
{
cli_error(cli, "Can't do this on a slave. Do it on %s",
fmtaddr(config->cluster_master_address, 0));
return CLI_OK;
}
if (!argc)
{
cli_error(cli, "Specify a user to drop");
return CLI_OK;
}
for (i = 0; i < argc; i++)
{
if (!(s = sessionbyuser(argv[i])))
{
cli_error(cli, "User %s is not connected", argv[i]);
continue;
}
if (session[s].ip && session[s].opened && !session[s].die)
{
cli_print(cli, "Dropping user %s", session[s].user);
cli_session_actions[s].action |= CLI_SESS_KILL;
}
}
return CLI_OK;
}
static int cmd_drop_tunnel(struct cli_def *cli, char *command, char **argv, int argc)
{
int i;
tunnelidt t;
if (CLI_HELP_REQUESTED)
return cli_arg_help(cli, argc > 1,
"<1-%d>", MAXTUNNEL-1, "Tunnel id to drop", NULL);
if (!config->cluster_iam_master)
{
cli_error(cli, "Can't do this on a slave. Do it on %s",
fmtaddr(config->cluster_master_address, 0));
return CLI_OK;
}
if (!argc)
{
cli_error(cli, "Specify a tunnel to drop");
return CLI_OK;
}
for (i = 0; i < argc; i++)
{
if ((t = atol(argv[i])) <= 0 || (t >= MAXTUNNEL))
{
cli_error(cli, "Invalid tunnel ID (1-%d)", MAXTUNNEL-1);
continue;
}
if (!tunnel[t].ip)
{
cli_error(cli, "Tunnel %d is not connected", t);
continue;
}
if (tunnel[t].die)
{
cli_error(cli, "Tunnel %d is already being shut down", t);
continue;
}
cli_print(cli, "Tunnel %d shut down (%s)", t, tunnel[t].hostname);
cli_tunnel_actions[t].action |= CLI_TUN_KILL;
}
return CLI_OK;
}
static int cmd_drop_session(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,
"<1-%d>", MAXSESSION-1, "Session id to drop", NULL);
if (!config->cluster_iam_master)
{
cli_error(cli, "Can't do this on a slave. Do it on %s",
fmtaddr(config->cluster_master_address, 0));
return CLI_OK;
}
if (!argc)
{
cli_error(cli, "Specify a session id to drop");
return CLI_OK;
}
for (i = 0; i < argc; i++)
{
if ((s = atol(argv[i])) <= 0 || (s > MAXSESSION))
{
cli_error(cli, "Invalid session ID (1-%d)", MAXSESSION-1);
continue;
}
if (session[s].ip && session[s].opened && !session[s].die)
{
cli_print(cli, "Dropping session %d", s);
cli_session_actions[s].action |= CLI_SESS_KILL;
}
else
{
cli_error(cli, "Session %d is not active.", s);
}
}
return CLI_OK;
}
static int cmd_snoop(struct cli_def *cli, char *command, char **argv, int argc)
{
in_addr_t ip;
uint16_t port;
sessionidt s;
if (CLI_HELP_REQUESTED)
{
switch (argc)
{
case 1:
return cli_arg_help(cli, 0,
"USER", "Username of session to snoop", NULL);
case 2:
return cli_arg_help(cli, 0,
"A.B.C.D", "IP address of snoop destination", NULL);
case 3:
return cli_arg_help(cli, 0,
"N", "Port of snoop destination", NULL);
case 4:
if (!argv[3][1])
return cli_arg_help(cli, 1, NULL);
default:
return CLI_OK;
}
}
if (!config->cluster_iam_master)
{
cli_error(cli, "Can't do this on a slave. Do it on %s",
fmtaddr(config->cluster_master_address, 0));
return CLI_OK;
}
if (argc < 3)
{
cli_error(cli, "Specify username, ip and port");
return CLI_OK;
}
if (!(s = sessionbyuser(argv[0])))
{
cli_error(cli, "User %s is not connected", argv[0]);
return CLI_OK;
}
ip = inet_addr(argv[1]);
if (!ip || ip == INADDR_NONE)
{
cli_error(cli, "Cannot parse IP \"%s\"", argv[1]);
return CLI_OK;
}
port = atoi(argv[2]);
if (!port)
{
cli_error(cli, "Invalid port %s", argv[2]);
return CLI_OK;
}
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;
return CLI_OK;
}
static int cmd_no_snoop(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 unsnoop", NULL);
if (!config->cluster_iam_master)
{
cli_error(cli, "Can't do this on a slave. Do it on %s",
fmtaddr(config->cluster_master_address, 0));
return CLI_OK;
}
if (!argc)
{
cli_error(cli, "Specify a user to unsnoop");
return CLI_OK;
}
for (i = 0; i < argc; i++)
{
if (!(s = sessionbyuser(argv[i])))
{
cli_error(cli, "User %s is not connected", argv[i]);
continue;
}
cli_print(cli, "Not snooping user %s", argv[i]);
cli_session_actions[s].action |= CLI_SESS_NOSNOOP;
}
return CLI_OK;
}
static int cmd_throttle(struct cli_def *cli, char *command, char **argv, int argc)
{
int rate_in = 0;
int rate_out = 0;
sessionidt s;
/*
throttle USER - throttle in/out to default rate
throttle USER RATE - throttle in/out to default rate
throttle USER in RATE - throttle input only
throttle USER out RATE - throttle output only
throttle USER in RATE out RATE - throttle both
*/
if (CLI_HELP_REQUESTED)
{
switch (argc)
{
case 1:
return cli_arg_help(cli, 0,
"USER", "Username of session to throttle", NULL);
case 2:
return cli_arg_help(cli, 1,
"RATE", "Rate in kbps (in and out)",
"in", "Select incoming rate",
"out", "Select outgoing rate", NULL);
case 4:
return cli_arg_help(cli, 1,
"in", "Select incoming rate",
"out", "Select outgoing rate", NULL);
case 3:
if (isdigit(argv[1][0]))
return cli_arg_help(cli, 1, NULL);
case 5:
return cli_arg_help(cli, 0, "RATE", "Rate in kbps", NULL);
default:
return cli_arg_help(cli, argc > 1, NULL);
}
}
if (!config->cluster_iam_master)
{
cli_error(cli, "Can't do this on a slave. Do it on %s",
fmtaddr(config->cluster_master_address, 0));
return CLI_OK;
}
if (argc == 0)
{
cli_error(cli, "Specify a user to throttle");
return CLI_OK;
}
if (!(s = sessionbyuser(argv[0])))
{
cli_error(cli, "User %s is not connected", argv[0]);
return CLI_OK;
}
if (argc == 1)
{
rate_in = rate_out = config->rl_rate;
}
else if (argc == 2)
{
rate_in = rate_out = atoi(argv[1]);
if (rate_in < 1)
{
cli_error(cli, "Invalid rate \"%s\"", argv[1]);
return CLI_OK;
}
}
else if (argc == 3 || argc == 5)
{
int i;
for (i = 1; i < argc - 1; i += 2)
{
int r = 0;
if (MATCH("in", argv[i]))
r = rate_in = atoi(argv[i+1]);
else if (MATCH("out", argv[i]))
r = rate_out = atoi(argv[i+1]);
if (r < 1)
{
cli_error(cli, "Invalid rate specification \"%s %s\"", argv[i], argv[i+1]);
return CLI_OK;
}
}
}
else
{
cli_error(cli, "Invalid arguments");
return CLI_OK;
}
if ((rate_in && session[s].throttle_in) || (rate_out && session[s].throttle_out))
{
cli_error(cli, "User %s already throttled, unthrottle first", argv[0]);
return CLI_OK;
}
cli_session_actions[s].throttle_in = cli_session_actions[s].throttle_out = -1;
if (rate_in && session[s].throttle_in != rate_in)
cli_session_actions[s].throttle_in = rate_in;
if (rate_out && session[s].throttle_out != rate_out)
cli_session_actions[s].throttle_out = rate_out;
if (cli_session_actions[s].throttle_in == -1 &&
cli_session_actions[s].throttle_out == -1)
{
cli_error(cli, "User %s already throttled at this rate", argv[0]);
return CLI_OK;
}
cli_print(cli, "Throttling user %s", argv[0]);
cli_session_actions[s].action |= CLI_SESS_THROTTLE;
return CLI_OK;
}
static int cmd_no_throttle(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 unthrottle", NULL);
if (!config->cluster_iam_master)
{
cli_error(cli, "Can't do this on a slave. Do it on %s",
fmtaddr(config->cluster_master_address, 0));
return CLI_OK;
}
if (!argc)
{
cli_error(cli, "Specify a user to unthrottle");
return CLI_OK;
}
for (i = 0; i < argc; i++)
{
if (!(s = sessionbyuser(argv[i])))
{
cli_error(cli, "User %s is not connected", argv[i]);
continue;
}
if (session[s].throttle_in || session[s].throttle_out)
{
cli_print(cli, "Unthrottling user %s", argv[i]);
cli_session_actions[s].action |= CLI_SESS_NOTHROTTLE;
}
else
{
cli_error(cli, "User %s not throttled", argv[i]);
}
}
return CLI_OK;
}
static int cmd_debug(struct cli_def *cli, char *command, char **argv, int argc)
{
int i;
if (CLI_HELP_REQUESTED)
return cli_arg_help(cli, 1,
"all", "Enable debugging for all except \"data\"",
"critical", "", // FIXME: add descriptions
"error", "",
"warning", "",
"info", "",
"calls", "",
"data", "",
NULL);
if (!argc)
{
char *p = (char *) &debug_flags;
for (i = 0; i < sizeof(debug_flags); i++)
{
if (p[i])
{
cli_print(cli, "Currently debugging:%s%s%s%s%s%s",
(debug_flags.critical) ? " critical" : "",
(debug_flags.error) ? " error" : "",
(debug_flags.warning) ? " warning" : "",
(debug_flags.info) ? " info" : "",
(debug_flags.calls) ? " calls" : "",
(debug_flags.data) ? " data" : "");
return CLI_OK;
}
}
cli_print(cli, "Debugging off");
return CLI_OK;
}
for (i = 0; i < argc; i++)
{
int len = strlen(argv[i]);
if (argv[i][0] == 'c' && len < 2)
len = 2; /* distinguish [cr]itical from [ca]lls */
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;
continue;
}
cli_error(cli, "Invalid debugging flag \"%s\"", argv[i]);
}
return CLI_OK;
}
static int cmd_no_debug(struct cli_def *cli, char *command, char **argv, int argc)
{
int i;
if (CLI_HELP_REQUESTED)
return cli_arg_help(cli, 1,
"all", "Disable all debugging",
"critical", "", // FIXME: add descriptions
"error", "",
"warning", "",
"info", "",
"calls", "",
"data", "",
NULL);
if (!argc)
{
memset(&debug_flags, 0, sizeof(debug_flags));
return CLI_OK;
}
for (i = 0; i < argc; i++)
{
int len = strlen(argv[i]);
if (argv[i][0] == 'c' && len < 2)
len = 2; /* distinguish [cr]itical from [ca]lls */
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;
}
cli_error(cli, "Invalid debugging flag \"%s\"", argv[i]);
}
return CLI_OK;
}
static int cmd_load_plugin(struct cli_def *cli, char *command, char **argv, int argc)
{
int i, firstfree = 0;
if (CLI_HELP_REQUESTED)
return cli_arg_help(cli, argc > 1,
"PLUGIN", "Name of plugin to load", NULL);
if (argc != 1)
{
cli_error(cli, "Specify a plugin to load");
return CLI_OK;
}
for (i = 0; i < MAXPLUGINS; i++)
{
if (!*config->plugins[i] && !firstfree)
firstfree = i;
if (strcmp(config->plugins[i], argv[0]) == 0)
{
cli_error(cli, "Plugin is already loaded");
return CLI_OK;
}
}
if (firstfree)
{
strncpy(config->plugins[firstfree], argv[0], sizeof(config->plugins[firstfree]) - 1);
config->reload_config = 1;
cli_print(cli, "Loading plugin %s", argv[0]);
}
return CLI_OK;
}
static int cmd_remove_plugin(struct cli_def *cli, char *command, char **argv, int argc)
{
int i;
if (CLI_HELP_REQUESTED)
return cli_arg_help(cli, argc > 1,
"PLUGIN", "Name of plugin to unload", NULL);
if (argc != 1)
{
cli_error(cli, "Specify a plugin to remove");
return CLI_OK;
}
for (i = 0; i < MAXPLUGINS; i++)
{
if (strcmp(config->plugins[i], argv[0]) == 0)
{
config->reload_config = 1;
memset(config->plugins[i], 0, sizeof(config->plugins[i]));
return CLI_OK;
}
}
cli_error(cli, "Plugin is not loaded");
return CLI_OK;
}
static char *duration(time_t secs)
{
static char *buf = NULL;
int p = 0;
if (!buf) buf = calloc(64, 1);
if (secs >= 86400)
{
int days = secs / 86400;
p = sprintf(buf, "%d day%s, ", days, days > 1 ? "s" : "");
secs %= 86400;
}
if (secs >= 3600)
{
int mins = secs / 60;
int hrs = mins / 60;
mins %= 60;
sprintf(buf + p, "%d:%02d", hrs, mins);
}
else if (secs >= 60)
{
int mins = secs / 60;
sprintf(buf + p, "%d min%s", mins, mins > 1 ? "s" : "");
}
else
sprintf(buf, "%ld sec%s", secs, secs > 1 ? "s" : "");
return buf;
}
static int cmd_uptime(struct cli_def *cli, char *command, char **argv, int argc)
{
FILE *fh;
char buf[100], *p = buf, *loads[3];
int i, num_sessions = 0;
if (CLI_HELP_REQUESTED)
return CLI_HELP_NO_ARGS;
fh = fopen("/proc/loadavg", "r");
fgets(buf, 100, fh);
fclose(fh);
for (i = 0; i < 3; i++)
loads[i] = strdup(strsep(&p, " "));
time(&time_now);
strftime(buf, 99, "%H:%M:%S", localtime(&time_now));
for (i = 1; i < MAXSESSION; i++)
if (session[i].opened) num_sessions++;
cli_print(cli, "%s up %s, %d users, load average: %s, %s, %s",
buf,
duration(time_now - config->start_time),
num_sessions,
loads[0], loads[1], loads[2]
);
for (i = 0; i < 3; i++)
if (loads[i]) free(loads[i]);
cli_print(cli, "Bandwidth: %s", config->bandwidth);
return CLI_OK;
}
static int cmd_set(struct cli_def *cli, char *command, char **argv, int argc)
{
int i;
if (CLI_HELP_REQUESTED)
{
switch (argc)
{
case 1:
{
int len = strlen(argv[0])-1;
for (i = 0; config_values[i].key; i++)
if (!len || !strncmp(config_values[i].key, argv[0], len))
cli_error(cli, " %s", config_values[i].key);
}
return CLI_OK;
case 2:
return cli_arg_help(cli, 0,
"VALUE", "Value for variable", NULL);
case 3:
if (!argv[2][1])
return cli_arg_help(cli, 1, NULL);
default:
return CLI_OK;
}
}
if (argc != 2)
{
cli_error(cli, "Specify variable and value");
return CLI_OK;
}
for (i = 0; config_values[i].key; i++)
{
void *value = ((void *) config) + config_values[i].offset;
if (strcmp(config_values[i].key, argv[0]) == 0)
{
// Found a value to set
cli_print(cli, "Setting \"%s\" to \"%s\"", argv[0], argv[1]);
switch (config_values[i].type)
{
case STRING:
snprintf((char *) value, config_values[i].size, "%s", argv[1]);
break;
case INT:
*(int *) value = atoi(argv[1]);
break;
case UNSIGNED_LONG:
*(unsigned long *) value = atol(argv[1]);
break;
case SHORT:
*(short *) value = atoi(argv[1]);
break;
case IPv4:
*(in_addr_t *) value = inet_addr(argv[1]);
break;
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;
else
*(int *) value = 0;
break;
default:
cli_error(cli, "Unknown variable type");
break;
}
config->reload_config = 1;
return CLI_OK;
}
}
cli_error(cli, "Unknown variable \"%s\"", argv[0]);
return CLI_OK;
}
int regular_stuff(struct cli_def *cli)
{
#ifdef RINGBUFFER
int out = 0;
int i;
for (i = debug_rb_tail; i != ringbuffer->tail; i = (i + 1) % RINGBUFFER_SIZE)
{
char *m = ringbuffer->buffer[i].message;
char *p;
int show = 0;
if (!*m) continue;
switch (ringbuffer->buffer[i].level)
{
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) continue;
if (!(p = strchr(m, '\n')))
p = m + strlen(m);
cli_error(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);
out++;
}
debug_rb_tail = ringbuffer->tail;
if (out)
cli_reprompt(cli);
#endif
return CLI_OK;
}
#ifdef BGP
static int cmd_router_bgp(struct cli_def *cli, char *command, char **argv, int argc)
{
int as;
if (CLI_HELP_REQUESTED)
return cli_arg_help(cli, argc > 1,
"<1-65535>", "Autonomous system number", NULL);
if (argc != 1 || (as = atoi(argv[0])) < 1 || as > 65535)
{
cli_error(cli, "Invalid autonomous system number");
return CLI_OK;
}
if (bgp_configured && as != config->as_number)
{
cli_error(cli, "Can't change local AS on a running system");
return CLI_OK;
}
config->as_number = as;
cli_set_configmode(cli, MODE_CONFIG_BGP, "router");
return CLI_OK;
}
static int find_bgp_neighbour(char const *name)
{
int i;
int new = -1;
struct hostent *h;
in_addr_t addrs[4] = { 0 };
char **a;
if (!(h = gethostbyname(name)) || h->h_addrtype != AF_INET)
return -2;
for (i = 0; i < sizeof(addrs) / sizeof(*addrs) && h->h_addr_list[i]; i++)
memcpy(&addrs[i], h->h_addr_list[i], sizeof(*addrs));
for (i = 0; i < BGP_NUM_PEERS; i++)
{
if (!config->neighbour[i].name[0])
{
if (new == -1) new = i;
continue;
}
if (!strcmp(name, config->neighbour[i].name))
return i;
if (!(h = gethostbyname(config->neighbour[i].name)) || h->h_addrtype != AF_INET)
continue;
for (a = h->h_addr_list; *a; a++)
{
int j;
for (j = 0; j < sizeof(addrs) / sizeof(*addrs) && addrs[j]; j++)
if (!memcmp(&addrs[j], *a, sizeof(*addrs)))
return i;
}
}
return new;
}
static int cmd_router_bgp_neighbour(struct cli_def *cli, char *command, char **argv, int argc)
{
int i;
int keepalive;
int hold;
if (CLI_HELP_REQUESTED)
{
switch (argc)
{
case 1:
return cli_arg_help(cli, 0,
"A.B.C.D", "BGP neighbour address",
"NAME", "BGP neighbour name",
NULL);
case 2:
return cli_arg_help(cli, 0,
"remote-as", "Set remote autonomous system number",
"timers", "Set timers",
NULL);
default:
if (MATCH("remote-as", argv[1]))
return cli_arg_help(cli, argv[2][1], "<1-65535>", "Autonomous system number", NULL);
if (MATCH("timers", argv[1]))
{
if (argc == 3)
return cli_arg_help(cli, 0, "<1-65535>", "Keepalive time", NULL);
if (argc == 4)
return cli_arg_help(cli, argv[3][1], "<3-65535>", "Hold time", NULL);
if (argc == 5 && !argv[4][1])
return cli_arg_help(cli, 1, NULL);
}
return CLI_OK;
}
}
if (argc < 3)
{
cli_error(cli, "Invalid arguments");
return CLI_OK;
}
if ((i = find_bgp_neighbour(argv[0])) == -2)
{
cli_error(cli, "Invalid neighbour");
return CLI_OK;
}
if (i == -1)
{
cli_error(cli, "Too many neighbours (max %d)", BGP_NUM_PEERS);
return CLI_OK;
}
if (MATCH("remote-as", argv[1]))
{
int as = atoi(argv[2]);
if (as < 0 || as > 65535)
{
cli_error(cli, "Invalid autonomous system number");
return CLI_OK;
}
if (!config->neighbour[i].name[0])
{
snprintf(config->neighbour[i].name, sizeof(config->neighbour[i].name), "%s", argv[0]);
config->neighbour[i].keepalive = -1;
config->neighbour[i].hold = -1;
}
config->neighbour[i].as = as;
return CLI_OK;
}
if (argc != 4 || !MATCH("timers", argv[1]))
{
cli_error(cli, "Invalid arguments");
return CLI_OK;
}
if (!config->neighbour[i].name[0])
{
cli_error(cli, "Specify remote-as first");
return CLI_OK;
}
keepalive = atoi(argv[2]);
hold = atoi(argv[3]);
if (keepalive < 1 || keepalive > 65535)
{
cli_error(cli, "Invalid keepalive time");
return CLI_OK;
}
if (hold < 3 || hold > 65535)
{
cli_error(cli, "Invalid hold time");
return CLI_OK;
}
if (keepalive == BGP_KEEPALIVE_TIME)
keepalive = -1; // using default value
if (hold == BGP_HOLD_TIME)
hold = -1;
config->neighbour[i].keepalive = keepalive;
config->neighbour[i].hold = hold;
return CLI_OK;
}
static int cmd_router_bgp_no_neighbour(struct cli_def *cli, char *command, char **argv, int argc)
{
int i;
if (CLI_HELP_REQUESTED)
return cli_arg_help(cli, argc > 0,
"A.B.C.D", "BGP neighbour address",
"NAME", "BGP neighbour name",
NULL);
if (argc != 1)
{
cli_error(cli, "Specify a BGP neighbour");
return CLI_OK;
}
if ((i = find_bgp_neighbour(argv[0])) == -2)
{
cli_error(cli, "Invalid neighbour");
return CLI_OK;
}
if (i < 0 || !config->neighbour[i].name[0])
{
cli_error(cli, "Neighbour %s not configured", argv[0]);
return CLI_OK;
}
memset(&config->neighbour[i], 0, sizeof(config->neighbour[i]));
return CLI_OK;
}
static int cmd_show_bgp(struct cli_def *cli, char *command, char **argv, int argc)
{
int i;
int hdr = 0;
char *addr;
if (!bgp_configured)
return CLI_OK;
if (CLI_HELP_REQUESTED)
return cli_arg_help(cli, 1,
"A.B.C.D", "BGP neighbour address",
"NAME", "BGP neighbour name",
NULL);
cli_print(cli, "BGPv%d router identifier %s, local AS number %d",
BGP_VERSION, fmtaddr(my_address, 0), (int) config->as_number);
time(&time_now);
for (i = 0; i < BGP_NUM_PEERS; i++)
{
if (!*bgp_peers[i].name)
continue;
addr = fmtaddr(bgp_peers[i].addr, 0);
if (argc && strcmp(addr, argv[0]) &&
strncmp(bgp_peers[i].name, argv[0], strlen(argv[0])))
continue;
if (!hdr++)
{
cli_print(cli, "");
cli_print(cli, "Peer AS Address "
"State Retries Retry in Route Pend Timers");
cli_print(cli, "------------------ ----- --------------- "
"----------- ------- -------- ----- ---- ---------");
}
cli_print(cli, "%-18.18s %5d %15s %-11s %7d %7lds %5s %4s %4d %4d",
bgp_peers[i].name,
bgp_peers[i].as,
addr,
bgp_state_str(bgp_peers[i].state),
bgp_peers[i].retry_count,
bgp_peers[i].retry_time ? bgp_peers[i].retry_time - time_now : 0,
bgp_peers[i].routing ? "yes" : "no",
bgp_peers[i].update_routes ? "yes" : "no",
bgp_peers[i].keepalive,
bgp_peers[i].hold);
}
return CLI_OK;
}
static int cmd_suspend_bgp(struct cli_def *cli, char *command, char **argv, int argc)
{
int i;
char *addr;
if (!bgp_configured)
return CLI_OK;
if (CLI_HELP_REQUESTED)
return cli_arg_help(cli, 1,
"A.B.C.D", "BGP neighbour address",
"NAME", "BGP neighbour name",
NULL);
for (i = 0; i < BGP_NUM_PEERS; i++)
{
if (bgp_peers[i].state != Established)
continue;
if (!bgp_peers[i].routing)
continue;
addr = fmtaddr(bgp_peers[i].addr, 0);
if (argc && strcmp(addr, argv[0]) && strcmp(bgp_peers[i].name, argv[0]))
continue;
bgp_peers[i].cli_flag = BGP_CLI_SUSPEND;
cli_print(cli, "Suspending peer %s", bgp_peers[i].name);
}
return CLI_OK;
}
static int cmd_no_suspend_bgp(struct cli_def *cli, char *command, char **argv, int argc)
{
int i;
char *addr;
if (!bgp_configured)
return CLI_OK;
if (CLI_HELP_REQUESTED)
return cli_arg_help(cli, 1,
"A.B.C.D", "BGP neighbour address",
"NAME", "BGP neighbour name",
NULL);
for (i = 0; i < BGP_NUM_PEERS; i++)
{
if (bgp_peers[i].state != Established)
continue;
if (bgp_peers[i].routing)
continue;
addr = fmtaddr(bgp_peers[i].addr, 0);
if (argc && strcmp(addr, argv[0]) &&
strncmp(bgp_peers[i].name, argv[0], strlen(argv[0])))
continue;
bgp_peers[i].cli_flag = BGP_CLI_ENABLE;
cli_print(cli, "Un-suspending peer %s", bgp_peers[i].name);
}
return CLI_OK;
}
static int cmd_restart_bgp(struct cli_def *cli, char *command, char **argv, int argc)
{
int i;
char *addr;
if (!bgp_configured)
return CLI_OK;
if (CLI_HELP_REQUESTED)
return cli_arg_help(cli, 1,
"A.B.C.D", "BGP neighbour address",
"NAME", "BGP neighbour name",
NULL);
for (i = 0; i < BGP_NUM_PEERS; i++)
{
if (!*bgp_peers[i].name)
continue;
addr = fmtaddr(bgp_peers[i].addr, 0);
if (argc && strcmp(addr, argv[0]) &&
strncmp(bgp_peers[i].name, argv[0], strlen(argv[0])))
continue;
bgp_peers[i].cli_flag = BGP_CLI_RESTART;
cli_print(cli, "Restarting peer %s", bgp_peers[i].name);
}
return CLI_OK;
}
#endif /* BGP*/
static int filt;
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_error(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_error(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_error(cli, "Invalid access-list name");
return CLI_OK;
}
filt = find_filter(argv[1], strlen(argv[1]));
if (add)
{
if (filt < 0)
{
cli_error(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_error(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_error(cli, "Access-list not defined");
return CLI_OK;
}
// racy
if (ip_filters[filt].used)
{
cli_error(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;
}
static 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_error(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_error(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_error(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_error(cli, "Specify host ip address");
return NULL;
}
if (!inet_aton(argv[a], &addr))
{
cli_error(cli, "Cannot parse IP \"%s\"", argv[a]);
return NULL;
}
*ip = addr.s_addr;
*wild = INADDR_ANY;
a++;
}
else
{
if (a >= argc - 1)
{
cli_error(cli, "Specify %s ip address and wildcard", i ? "destination" : "source");
return NULL;
}
if (!inet_aton(argv[a], &addr))
{
cli_error(cli, "Cannot parse IP \"%s\"", argv[a]);
return NULL;
}
*ip = addr.s_addr;
if (!inet_aton(argv[++a], &addr))
{
cli_error(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_error(cli, "Specify port");
return NULL;
}
if (!(port->port = atoi(argv[a])))
{
cli_error(cli, "Invalid port \"%s\"", argv[a]);
return NULL;
}
a++;
if (port->op != FILTER_PORT_OP_RANGE)
continue;
if (a >= argc)
{
cli_error(cli, "Specify port");
return NULL;
}
if (!(port->port2 = atoi(argv[a])) || port->port2 < port->port)
{
cli_error(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_error(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_error(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_error(cli, "Can't specify \"fragments\" on rules with layer 4 matches");
return NULL;
}
rule.frag = 1;
a++;
}
if (a < argc)
{
cli_error(cli, "Invalid flag \"%s\"", argv[a]);
return NULL;
}
return &rule;
}
static 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_error(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_error(cli, "Specify host ip address");
return NULL;
}
if (!inet_aton(argv[1], &addr))
{
cli_error(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_error(cli, "Specify source ip address and wildcard");
return NULL;
}
if (!inet_aton(argv[0], &addr))
{
cli_error(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_error(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, offsetof(ip_filter_rulet, counter)))
return CLI_OK;
}
cli_error(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_error(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_error(cli, "Specify a user and filters");
return CLI_OK;
}
if (!(s = sessionbyuser(argv[0])))
{
cli_error(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_error(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_error(cli, "Output already filtered");
return CLI_OK;
}
f = &cli_session_actions[s].filter_out;
}
else
{
cli_error(cli, "Invalid filter specification");
return CLI_OK;
}
v = find_filter(argv[i+1], strlen(argv[i+1]));
if (v < 0 || !*ip_filters[v].name)
{
cli_error(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_error(cli, "Can't do this on a slave. Do it on %s",
fmtaddr(config->cluster_master_address, 0));
return CLI_OK;
}
if (!argc)
{
cli_error(cli, "Specify a user to remove filters from");
return CLI_OK;
}
for (i = 0; i < argc; i++)
{
if (!(s = sessionbyuser(argv[i])))
{
cli_error(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_error(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_error(cli, "Specify a filter name");
return CLI_OK;
}
for (i = 0; i < argc; i++)
{
int f = find_filter(argv[i], strlen(argv[i]));
ip_filter_rulet *rules;
if (f < 0 || !*ip_filters[f].name)
{
cli_error(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 (%u 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])
{
if (sscanf(string, "%02x%02x.%02x%02x.%02x%02x", (unsigned int *)&mac[0], (unsigned int *)&mac[1], (unsigned int *)&mac[2], (unsigned int *)&mac[3], (unsigned int *)&mac[4], (unsigned int *)&mac[5]) == 6)
return;
if (sscanf(string, "%02x%02x:%02x%02x:%02x%02x", (unsigned int *)&mac[0], (unsigned int *)&mac[1], (unsigned int *)&mac[2], (unsigned int *)&mac[3], (unsigned int *)&mac[4], (unsigned int *)&mac[5]) == 6)
return;
memset(mac, 0, 6);
}
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