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l2tpns/cli.c
fred_nerk 3aa4eda8b1 Initial revision
2003-12-16 07:07:39 +00:00

944 lines
27 KiB
C
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// L2TPNS Command Line Interface
// $Id: cli.c,v 1.1 2003/12/16 07:07:39 fred_nerk Exp $
// vim: sw=4 ts=8
#include <stdio.h>
#include <sys/file.h>
#include <sys/stat.h>
#include <malloc.h>
#include <string.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 <unistd.h>
#include <libcli.h>
#include "l2tpns.h"
#include "util.h"
#include "config.h"
#ifdef HAVE_LIBCLI
extern tunnelt *tunnel;
extern sessiont *session;
extern radiust *radius;
extern ippoolt *ip_address_pool;
extern struct Tstats *_statistics;
extern int cli_pid;
struct cli_def *cli = NULL;
int cli_quit = 0;
extern int clifd, udpfd, tapfd, snoopfd, radfd, ifrfd, cluster_sockfd;
extern sessionidt *cli_session_kill;
extern tunnelidt *cli_tunnel_kill;
extern tbft *filter_buckets;
#ifdef RINGBUFFER
extern struct Tringbuffer *ringbuffer;
#endif
char *rcs_id = "$Id: cli.c,v 1.1 2003/12/16 07:07:39 fred_nerk Exp $";
char *debug_levels[] = {
"CRIT",
"ERROR",
"WARN",
"INFO",
"CALL",
"DATA",
};
struct
{
char critical;
char error;
char warning;
char info;
char calls;
char data;
} debug_flags;
int debug_session;
int debug_tunnel;
int debug_rb_tail;
int cmd_show_session(struct cli_def *cli, FILE *w, char *command, char **argv, int argc);
int cmd_show_tunnels(struct cli_def *cli, FILE *w, char *command, char **argv, int argc);
int cmd_show_users(struct cli_def *cli, FILE *w, char *command, char **argv, int argc);
int cmd_show_counters(struct cli_def *cli, FILE *w, char *command, char **argv, int argc);
int cmd_show_version(struct cli_def *cli, FILE *w, char *command, char **argv, int argc);
int cmd_show_pool(struct cli_def *cli, FILE *w, char *command, char **argv, int argc);
int cmd_show_banana(struct cli_def *cli, FILE *w, char *command, char **argv, int argc);
int cmd_clear_counters(struct cli_def *cli, FILE *w, char *command, char **argv, int argc);
int cmd_drop_user(struct cli_def *cli, FILE *w, char *command, char **argv, int argc);
int cmd_drop_tunnel(struct cli_def *cli, FILE *w, char *command, char **argv, int argc);
int cmd_drop_session(struct cli_def *cli, FILE *w, char *command, char **argv, int argc);
int cmd_snoop(struct cli_def *cli, FILE *w, char *command, char **argv, int argc);
int cmd_no_snoop(struct cli_def *cli, FILE *w, char *command, char **argv, int argc);
int cmd_throttle(struct cli_def *cli, FILE *w, char *command, char **argv, int argc);
int cmd_no_throttle(struct cli_def *cli, FILE *w, char *command, char **argv, int argc);
int cmd_debug(struct cli_def *cli, FILE *w, char *command, char **argv, int argc);
int cmd_no_debug(struct cli_def *cli, FILE *w, char *command, char **argv, int argc);
int cmd_watch_session(struct cli_def *cli, FILE *w, char *command, char **argv, int argc);
int cmd_watch_tunnel(struct cli_def *cli, FILE *w, char *command, char **argv, int argc);
int regular_stuff(struct cli_def *cli, FILE *w);
void init_cli()
{
FILE *f;
char buf[4096];
struct cli_command *c;
int on = 1;
struct sockaddr_in addr;
cli = cli_init();
c = cli_register_command(cli, NULL, "show", NULL, NULL);
cli_register_command(cli, c, "session", cmd_show_session, "Show a list of sessions");
cli_register_command(cli, c, "tunnels", cmd_show_tunnels, NULL);
cli_register_command(cli, c, "users", cmd_show_users, NULL);
cli_register_command(cli, c, "version", cmd_show_version, NULL);
cli_register_command(cli, c, "banana", cmd_show_banana, "Show a banana");
cli_register_command(cli, c, "pool", cmd_show_pool, NULL);
#ifdef STATISTICS
cli_register_command(cli, c, "counters", cmd_show_counters, NULL);
c = cli_register_command(cli, NULL, "clear", NULL, NULL);
cli_register_command(cli, c, "counters", cmd_clear_counters, NULL);
#endif
cli_register_command(cli, NULL, "snoop", cmd_snoop, NULL);
cli_register_command(cli, NULL, "throttle", cmd_throttle, NULL);
c = cli_register_command(cli, NULL, "no", NULL, NULL);
cli_register_command(cli, c, "snoop", cmd_no_snoop, NULL);
cli_register_command(cli, c, "throttle", cmd_no_throttle, NULL);
cli_register_command(cli, c, "debug", cmd_no_debug, NULL);
c = cli_register_command(cli, NULL, "drop", NULL, NULL);
cli_register_command(cli, c, "user", cmd_drop_user, NULL);
cli_register_command(cli, c, "tunnel", cmd_drop_tunnel, NULL);
cli_register_command(cli, c, "session", cmd_drop_session, NULL);
cli_register_command(cli, NULL, "debug", cmd_debug, "Specify a debugging level");
c = cli_register_command(cli, NULL, "watch", NULL, NULL);
cli_register_command(cli, c, "session", cmd_watch_session, "Dump logs for a tunnel");
cli_register_command(cli, c, "tunnel", cmd_watch_tunnel, "Dump logs for a tunnel");
// 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");
}
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;
cli_allow_user(cli, buf, p);
log(3, 0, 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, 0, "Error listening on cli port 23: %s\n", strerror(errno));
return;
}
listen(clifd, 10);
}
void cli_do(int sockfd)
{
if ((cli_pid = fork())) return;
// Close sockets
if (udpfd) close(udpfd); udpfd = 0;
if (tapfd) close(tapfd); tapfd = 0;
if (snoopfd) close(snoopfd); snoopfd = 0;
if (radfd) close(radfd); radfd = 0;
if (ifrfd) close(ifrfd); ifrfd = 0;
if (cluster_sockfd) close(cluster_sockfd); cluster_sockfd = 0;
if (clifd) close(clifd); clifd = 0;
signal(SIGPIPE, SIG_DFL);
signal(SIGCHLD, SIG_DFL);
signal(SIGHUP, SIG_DFL);
signal(SIGUSR1, SIG_DFL);
signal(SIGQUIT, SIG_DFL);
signal(SIGKILL, SIG_DFL);
signal(SIGALRM, SIG_DFL);
log(3, 0, 0, 0, "Accepted connection to CLI\n");
debug_session = 0;
debug_tunnel = 0;
#ifdef RINGBUFFER
debug_rb_tail = ringbuffer->tail;
#endif
memset(&debug_flags, 0, sizeof(debug_flags));
debug_flags.critical = 1;
cli_loop(cli, sockfd, "l2tpns> ");
close(sockfd);
log(3, 0, 0, 0, "Closed CLI connection\n");
exit(0);
}
int cmd_show_session(struct cli_def *cli, FILE *w, char *command, char **argv, int argc)
{
int i;
time_t time_now;
time(&time_now);
if (argc > 0)
{
// Show individual session
for (i = 0; i < argc; i++)
{
unsigned int s;
s = atoi(argv[i]);
if (!s || s > MAXSESSION)
{
fprintf(w, "Invalid session id \"%s\"\r\n", argv[i]);
continue;
}
fprintf(w, "\r\nSession %d:\r\n", s);
fprintf(w, " User: %s\r\n", session[s].user[0] ? session[s].user : "none");
fprintf(w, " Calling Num: %s\r\n", session[s].calling);
fprintf(w, " Called Num: %s\r\n", session[s].called);
fprintf(w, " Tunnel ID: %d\r\n", session[s].tunnel);
fprintf(w, " IP address: %s\r\n", inet_toa(htonl(session[s].ip)));
fprintf(w, " HSD sid: %lu\r\n", session[s].sid);
fprintf(w, " Idle time: %u seconds\r\n", abs(time_now - session[s].last_packet));
fprintf(w, " Next Recv: %u\r\n", session[s].nr);
fprintf(w, " Next Send: %u\r\n", session[s].ns);
fprintf(w, " Bytes In/Out: %lu/%lu\r\n", (unsigned long)session[s].cin, (unsigned long)session[s].cout);
fprintf(w, " Pkts In/Out: %lu/%lu\r\n", (unsigned long)session[s].pin, (unsigned long)session[s].pout);
fprintf(w, " Radius Session: %u\r\n", session[s].radius);
fprintf(w, " Rx Speed: %lu\r\n", session[s].rx_connect_speed);
fprintf(w, " Tx Speed: %lu\r\n", session[s].tx_connect_speed);
fprintf(w, " Intercepted: %s\r\n", session[s].snoop ? "YES" : "no");
fprintf(w, " Throttled: %s\r\n", session[s].throttle ? "YES" : "no");
fprintf(w, " Walled Garden: %s\r\n", session[s].walled_garden ? "YES" : "no");
fprintf(w, " Filter Bucket: %s\r\n", session[s].tbf ? filter_buckets[session[s].tbf].handle : "none");
}
return CLI_OK;
}
// Show Summary
fprintf(w, " %s %4s %-32s %-15s %s %s %s %10s %10s %10s %4s %-15s %s\r\n",
"SID",
"TID",
"Username",
"IP",
"I",
"T",
"S",
"opened",
"downloaded",
"uploaded",
"idle",
"LAC",
"CLI");
for (i = 0; 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)));
fprintf(w, "%5d %4d %-32s %-15s %s %s %s %10lu %10lu %10lu %4u %-15s %s\r\n",
i,
session[i].tunnel,
session[i].user[0] ? session[i].user : "*",
userip,
(session[i].snoop) ? "Y" : "N",
(session[i].throttle) ? "Y" : "N",
(session[i].walled_garden) ? "Y" : "N",
(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)),
tunnelip,
session[i].calling[0] ? session[i].calling : "*");
if (userip) free(userip);
if (tunnelip) free(tunnelip);
}
return CLI_OK;
}
int cmd_show_tunnels(struct cli_def *cli, FILE *w, char *command, char **argv, int argc)
{
int i, x;
time_t time_now;
time(&time_now);
if (argc > 0)
{
// Show individual tunnel
for (i = 0; i < argc; i++)
{
char s[65535] = {0};
unsigned int t;
t = atoi(argv[i]);
if (!t || t > MAXTUNNEL)
{
fprintf(w, "Invalid tunnel id \"%s\"\r\n", argv[i]);
continue;
}
fprintf(w, "\r\nTunnel %d:\r\n", t);
fprintf(w, " Hostname: %s\r\n", tunnel[t].hostname[0] ? tunnel[t].hostname : "(none)");
fprintf(w, " Remote IP: %s\r\n", inet_toa(htonl(tunnel[t].ip)));
fprintf(w, " Remote Port: %d\r\n", tunnel[t].port);
fprintf(w, " Rx Window: %u\r\n", tunnel[t].window);
fprintf(w, " Next Recv: %u\r\n", tunnel[t].nr);
fprintf(w, " Next Send: %u\r\n", tunnel[t].ns);
fprintf(w, " Queue Len: %u\r\n", tunnel[t].controlc);
fprintf(w, " Last Packet Age:%u\r\n", (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);
fprintf(w, " Sessions: %s\r\n", s);
}
return CLI_OK;
}
// Show tunnel summary
fprintf(w, "%s %s %s %s\r\n",
"TID",
"Hostname",
"IP",
"Sessions");
for (i = 0; i < MAXTUNNEL; i++)
{
int sessions = 0;
if (!tunnel[i].ip || tunnel[i].die || !tunnel[i].hostname[0]) continue;
for (x = 0; x < MAXSESSION; x++) if (session[x].tunnel == i && session[x].opened && !session[x].die) sessions++;
fprintf(w, "%d %s %s %d\r\n",
i,
tunnel[i].hostname,
inet_toa(htonl(tunnel[i].ip)),
sessions);
}
return CLI_OK;
}
int cmd_show_users(struct cli_def *cli, FILE *w, char *command, char **argv, int argc)
{
int i;
for (i = 0; i < MAXSESSION; i++)
{
if (!session[i].opened) continue;
if (!session[i].user[0]) continue;
fprintf(w, "%s\r\n",
session[i].user);
}
return CLI_OK;
}
int cmd_show_counters(struct cli_def *cli, FILE *w, char *command, char **argv, int argc)
{
fprintf(w, "%-10s %-8s %-10s %-8s\r\n", "Ethernet", "Bytes", "Packets", "Errors");
fprintf(w, "%-10s %8lu %8lu %8lu\r\n", "RX",
GET_STAT(tap_rx_bytes),
GET_STAT(tap_rx_packets),
GET_STAT(tap_rx_errors));
fprintf(w, "%-10s %8lu %8lu %8lu\r\n", "TX",
GET_STAT(tap_tx_bytes),
GET_STAT(tap_tx_packets),
GET_STAT(tap_tx_errors));
fprintf(w, "\r\n");
fprintf(w, "%-10s %-8s %-10s %-8s %-8s\r\n", "Tunnel", "Bytes", "Packets", "Errors", "Retries");
fprintf(w, "%-10s %8lu %8lu %8lu %8lu\r\n", "RX",
GET_STAT(tunnel_rx_bytes),
GET_STAT(tunnel_rx_packets),
GET_STAT(tunnel_rx_errors),
0L);
fprintf(w, "%-10s %8lu %8lu %8lu %8lu\r\n", "TX",
GET_STAT(tunnel_tx_bytes),
GET_STAT(tunnel_tx_packets),
GET_STAT(tunnel_rx_errors),
GET_STAT(tunnel_retries));
fprintf(w, "\r\n");
fprintf(w, "%-30s%-10s\r\n", "Counter", "Value");
fprintf(w, "-----------------------------------------\r\n");
fprintf(w, "%-30s%lu\r\n", "radius_retries", GET_STAT(radius_retries));
fprintf(w, "%-30s%lu\r\n", "arp_errors", GET_STAT(arp_errors));
fprintf(w, "%-30s%lu\r\n", "arp_replies", GET_STAT(arp_replies));
fprintf(w, "%-30s%lu\r\n", "arp_discarded", GET_STAT(arp_discarded));
fprintf(w, "%-30s%lu\r\n", "arp_sent", GET_STAT(arp_sent));
fprintf(w, "%-30s%lu\r\n", "arp_recv", GET_STAT(arp_recv));
fprintf(w, "%-30s%lu\r\n", "packets_snooped", GET_STAT(packets_snooped));
fprintf(w, "%-30s%lu\r\n", "tunnel_created", GET_STAT(tunnel_created));
fprintf(w, "%-30s%lu\r\n", "session_created", GET_STAT(session_created));
fprintf(w, "%-30s%lu\r\n", "tunnel_timeout", GET_STAT(tunnel_timeout));
fprintf(w, "%-30s%lu\r\n", "session_timeout", GET_STAT(session_timeout));
fprintf(w, "%-30s%lu\r\n", "radius_timeout", GET_STAT(radius_timeout));
fprintf(w, "%-30s%lu\r\n", "radius_overflow", GET_STAT(radius_overflow));
fprintf(w, "%-30s%lu\r\n", "tunnel_overflow", GET_STAT(tunnel_overflow));
fprintf(w, "%-30s%lu\r\n", "session_overflow", GET_STAT(session_overflow));
fprintf(w, "%-30s%lu\r\n", "ip_allocated", GET_STAT(ip_allocated));
fprintf(w, "%-30s%lu\r\n", "ip_freed", GET_STAT(ip_freed));
#ifdef STAT_CALLS
fprintf(w, "\n%-30s%-10s\r\n", "Counter", "Value");
fprintf(w, "-----------------------------------------\r\n");
fprintf(w, "%-30s%lu\r\n", "call_processtap", GET_STAT(call_processtap));
fprintf(w, "%-30s%lu\r\n", "call_processarp", GET_STAT(call_processarp));
fprintf(w, "%-30s%lu\r\n", "call_processipout", GET_STAT(call_processipout));
fprintf(w, "%-30s%lu\r\n", "call_processudp", GET_STAT(call_processudp));
fprintf(w, "%-30s%lu\r\n", "call_processpap", GET_STAT(call_processpap));
fprintf(w, "%-30s%lu\r\n", "call_processchap", GET_STAT(call_processchap));
fprintf(w, "%-30s%lu\r\n", "call_processlcp", GET_STAT(call_processlcp));
fprintf(w, "%-30s%lu\r\n", "call_processipcp", GET_STAT(call_processipcp));
fprintf(w, "%-30s%lu\r\n", "call_processipin", GET_STAT(call_processipin));
fprintf(w, "%-30s%lu\r\n", "call_processccp", GET_STAT(call_processccp));
fprintf(w, "%-30s%lu\r\n", "call_processrad", GET_STAT(call_processrad));
fprintf(w, "%-30s%lu\r\n", "call_sendarp", GET_STAT(call_sendarp));
fprintf(w, "%-30s%lu\r\n", "call_sendipcp", GET_STAT(call_sendipcp));
fprintf(w, "%-30s%lu\r\n", "call_sendchap", GET_STAT(call_sendchap));
fprintf(w, "%-30s%lu\r\n", "call_sessionbyip", GET_STAT(call_sessionbyip));
fprintf(w, "%-30s%lu\r\n", "call_sessionbyuser", GET_STAT(call_sessionbyuser));
fprintf(w, "%-30s%lu\r\n", "call_tunnelsend", GET_STAT(call_tunnelsend));
fprintf(w, "%-30s%lu\r\n", "call_tunnelkill", GET_STAT(call_tunnelkill));
fprintf(w, "%-30s%lu\r\n", "call_tunnelshutdown", GET_STAT(call_tunnelshutdown));
fprintf(w, "%-30s%lu\r\n", "call_sessionkill", GET_STAT(call_sessionkill));
fprintf(w, "%-30s%lu\r\n", "call_sessionshutdown", GET_STAT(call_sessionshutdown));
fprintf(w, "%-30s%lu\r\n", "call_sessionsetup", GET_STAT(call_sessionsetup));
fprintf(w, "%-30s%lu\r\n", "call_assign_ip_address",GET_STAT(call_assign_ip_address));
fprintf(w, "%-30s%lu\r\n", "call_free_ip_address", GET_STAT(call_free_ip_address));
fprintf(w, "%-30s%lu\r\n", "call_dump_acct_info", GET_STAT(call_dump_acct_info));
fprintf(w, "%-30s%lu\r\n", "call_radiussend", GET_STAT(call_radiussend));
fprintf(w, "%-30s%lu\r\n", "call_radiusretry", GET_STAT(call_radiusretry));
#endif
return CLI_OK;
}
int cmd_show_version(struct cli_def *cli, FILE *w, char *command, char **argv, int argc)
{
fprintf(w, "L2TPNS %s\r\n", VERSION);
fprintf(w, "ID: %s\r\n", rcs_id);
return CLI_OK;
}
int cmd_show_pool(struct cli_def *cli, FILE *w, char *command, char **argv, int argc)
{
int i;
int used = 0, free = 0;
fprintf(w, "%-15s %4s %8s %s\r\n", "IP Address", "Used", "Session", "User");
for (i = 0; i < MAXIPPOOL; i++)
{
sessionidt s = 0;
if (!ip_address_pool[i].address) continue;
if (ip_address_pool[i].assigned)
{
used++;
s = sessionbyip(ip_address_pool[i].address);
}
else
{
free++;
}
fprintf(w, "%-15s %4s %8d %s\r\n",
inet_toa(ip_address_pool[i].address),
(s) ? "Y" : "N",
s,
session[s].user);
}
fprintf(w, "\r\nFree: %d\r\nUsed: %d\r\n", free, used);
return CLI_OK;
}
int cmd_show_banana(struct cli_def *cli, FILE *w, char *command, char **argv, int argc)
{
fputs(" _\r\n"
"//\\\r\n"
"V \\\r\n"
" \\ \\_\r\n"
" \\,'.`-.\r\n"
" |\\ `. `.\r\n"
" ( \\ `. `-. _,.-:\\\r\n"
" \\ \\ `. `-._ __..--' ,-';/\r\n"
" \\ `. `-. `-..___..---' _.--' ,'/\r\n"
" `. `. `-._ __..--' ,' /\r\n"
" `. `-_ ``--..'' _.-' ,'\r\n"
" `-_ `-.___ __,--' ,'\r\n"
" `-.__ `----\"\"\" __.-'\r\n"
"hh `--..____..--'\r\n", w);
return CLI_OK;
}
int cmd_clear_counters(struct cli_def *cli, FILE *w, char *command, char **argv, int argc)
{
fprintf(w, "Counters cleared\r\n");
SET_STAT(last_reset, time(NULL));
return CLI_OK;
}
int cmd_drop_user(struct cli_def *cli, FILE *w, char *command, char **argv, int argc)
{
int i;
sessionidt s;
if (!argc)
{
fprintf(w, "Specify a user to drop\r\n");
return CLI_OK;
}
for (i = 0; i < argc; i++)
{
if (strchr(argv[i], '?'))
{
fprintf(w, "username ...");
return CLI_OK;
}
}
for (i = 0; i < argc; i++)
{
if (!(s = sessionbyuser(argv[i])))
{
fprintf(w, "User %s is not connected\r\n", argv[i]);
continue;
}
if (session[s].ip && session[s].opened && !session[s].die)
{
int x;
fprintf(w, "Dropping user %s\r\n", session[s].user);
for (x = 0; x < MAXSESSION; x++)
{
if (!cli_session_kill[x])
{
cli_session_kill[x] = s;
break;
}
}
}
}
return CLI_OK;
}
int cmd_drop_tunnel(struct cli_def *cli, FILE *w, char *command, char **argv, int argc)
{
int i;
tunnelidt tid;
if (!argc)
{
fprintf(w, "Specify a tunnel to drop\r\n");
return CLI_OK;
}
for (i = 0; i < argc; i++)
{
if (strchr(argv[i], '?'))
{
fprintf(w, "tunnel_id ...");
return CLI_OK;
}
}
for (i = 0; i < argc; i++)
{
int x;
if ((tid = atol(argv[i])) <= 0 || (tid > MAXTUNNEL))
{
fprintf(w, "Invalid tunnel ID (%d - %d)\r\n", 0, MAXTUNNEL);
continue;
}
if (!tunnel[tid].ip)
{
fprintf(w, "Tunnel %d is not connected\r\n", tid);
continue;
}
if (tunnel[tid].die)
{
fprintf(w, "Tunnel %d is already being shut down\r\n", tid);
continue;
}
for (x = 0; x < MAXTUNNEL; x++)
{
if (!cli_tunnel_kill[x])
{
cli_tunnel_kill[x] = tid;
fprintf(w, "Tunnel %d shut down (%s)\r\n", tid, tunnel[tid].hostname);
break;
}
}
}
return CLI_OK;
}
int cmd_drop_session(struct cli_def *cli, FILE *w, char *command, char **argv, int argc)
{
int i;
sessionidt s;
if (!argc)
{
fprintf(w, "Specify a session id to drop\r\n");
return CLI_OK;
}
for (i = 0; i < argc; i++)
{
if (strchr(argv[i], '?'))
{
fprintf(w, "session_id ...");
return CLI_OK;
}
}
for (i = 0; i < argc; i++)
{
if ((s = atol(argv[i])) <= 0 || (s > MAXSESSION))
{
fprintf(w, "Invalid session ID (%d - %d)\r\n", 0, MAXSESSION);
continue;
}
if (session[s].ip && session[s].opened && !session[s].die)
{
int x;
for (x = 0; x < MAXSESSION; x++)
{
if (!cli_session_kill[x])
{
cli_session_kill[x] = s;
break;
}
}
fprintf(w, "Dropping session %d\r\n", s);
}
else
{
fprintf(w, "Session %d is not active.\r\n", s);
}
}
return CLI_OK;
}
int cmd_snoop(struct cli_def *cli, FILE *w, char *command, char **argv, int argc)
{
int i;
sessionidt s;
if (!argc)
{
fprintf(w, "Specify a user\r\n");
return CLI_OK;
}
for (i = 0; i < argc; i++)
{
if (strchr(argv[i], '?'))
{
fprintf(w, "username ...");
return CLI_OK;
}
}
for (i = 0; i < argc; i++)
{
if (!(s = sessionbyuser(argv[i])))
{
fprintf(w, "User %s is not connected\r\n", argv[i]);
continue;
}
session[s].snoop = 1;
fprintf(w, "Snooping user %s\r\n", argv[i]);
}
return CLI_OK;
}
int cmd_no_snoop(struct cli_def *cli, FILE *w, char *command, char **argv, int argc)
{
int i;
sessionidt s;
if (!argc)
{
fprintf(w, "Specify a user\r\n");
return CLI_OK;
}
for (i = 0; i < argc; i++)
{
if (strchr(argv[i], '?'))
{
fprintf(w, "username ...");
return CLI_OK;
}
}
for (i = 0; i < argc; i++)
{
if (!(s = sessionbyuser(argv[i])))
{
fprintf(w, "User %s is not connected\r\n", argv[i]);
continue;
}
session[s].snoop = 0;
fprintf(w, "Not snooping user %s\r\n", argv[i]);
}
return CLI_OK;
}
int cmd_throttle(struct cli_def *cli, FILE *w, char *command, char **argv, int argc)
{
int i;
sessionidt s;
if (!argc)
{
fprintf(w, "Specify a user\r\n");
return CLI_OK;
}
for (i = 0; i < argc; i++)
{
if (strchr(argv[i], '?'))
{
fprintf(w, "username ...");
return CLI_OK;
}
}
for (i = 0; i < argc; i++)
{
if (!(s = sessionbyuser(argv[i])))
{
fprintf(w, "User %s is not connected\r\n", argv[i]);
continue;
}
throttle_session(s, 1);
fprintf(w, "throttling user %s\r\n", argv[i]);
}
return CLI_OK;
}
int cmd_no_throttle(struct cli_def *cli, FILE *w, char *command, char **argv, int argc)
{
int i;
sessionidt s;
if (!argc)
{
fprintf(w, "Specify a user\r\n");
return CLI_OK;
}
for (i = 0; i < argc; i++)
{
if (strchr(argv[i], '?'))
{
fprintf(w, "username ...");
return CLI_OK;
}
}
for (i = 0; i < argc; i++)
{
if (!(s = sessionbyuser(argv[i])))
{
fprintf(w, "User %s is not connected\r\n", argv[i]);
continue;
}
throttle_session(s, 0);
fprintf(w, "unthrottling user %s\r\n", argv[i]);
}
return CLI_OK;
}
int cmd_debug(struct cli_def *cli, FILE *w, char *command, char **argv, int argc)
{
int i;
if (!argc)
{
fprintf(w, "Currently debugging: ");
if (debug_flags.critical) fprintf(w, "critical ");
if (debug_flags.error) fprintf(w, "error ");
if (debug_flags.warning) fprintf(w, "warning ");
if (debug_flags.info) fprintf(w, "info ");
if (debug_flags.calls) fprintf(w, "calls ");
if (debug_flags.data) fprintf(w, "data ");
fprintf(w, "\r\n");
return CLI_OK;
}
for (i = 0; i < argc; i++)
{
if (*argv[i] == '?')
{
fprintf(w, "Possible debugging states are:\r\n");
fprintf(w, " critical\r\n");
fprintf(w, " error\r\n");
fprintf(w, " warning\r\n");
fprintf(w, " info\r\n");
fprintf(w, " calls\r\n");
fprintf(w, " data\r\n");
return CLI_OK;
}
}
for (i = 0; i < argc; i++)
{
if (strcasecmp(argv[i], "critical") == 0) debug_flags.critical = 1;
if (strcasecmp(argv[i], "error") == 0) debug_flags.error = 1;
if (strcasecmp(argv[i], "warning") == 0) debug_flags.warning = 1;
if (strcasecmp(argv[i], "info") == 0) debug_flags.info = 1;
if (strcasecmp(argv[i], "calls") == 0) debug_flags.calls = 1;
if (strcasecmp(argv[i], "data") == 0) debug_flags.data = 1;
if (strcasecmp(argv[i], "all") == 0)
{
memset(&debug_flags, 1, sizeof(debug_flags));
debug_flags.data = 0;
}
}
return CLI_OK;
}
int cmd_no_debug(struct cli_def *cli, FILE *w, char *command, char **argv, int argc)
{
int i;
for (i = 0; i < argc; i++)
{
if (strcasecmp(argv[i], "critical") == 0) debug_flags.critical = 0;
if (strcasecmp(argv[i], "error") == 0) debug_flags.error = 0;
if (strcasecmp(argv[i], "warning") == 0) debug_flags.warning = 0;
if (strcasecmp(argv[i], "info") == 0) debug_flags.info = 0;
if (strcasecmp(argv[i], "calls") == 0) debug_flags.calls = 0;
if (strcasecmp(argv[i], "data") == 0) debug_flags.data = 0;
if (strcasecmp(argv[i], "all") == 0) memset(&debug_flags, 0, sizeof(debug_flags));
}
return CLI_OK;
}
int cmd_watch_session(struct cli_def *cli, FILE *w, char *command, char **argv, int argc)
{
sessionidt s;
if (argc != 1)
{
fprintf(w, "Specify a single session to debug (0 to disable)\r\n");
return CLI_OK;
}
s = atoi(argv[0]);
if (debug_session)
fprintf(w, "No longer debugging session %d\r\n", debug_session);
if (s) fprintf(w, "Debugging session %d.\r\n", s);
debug_session = s;
return CLI_OK;
}
int cmd_watch_tunnel(struct cli_def *cli, FILE *w, char *command, char **argv, int argc)
{
tunnelidt s;
if (argc != 1)
{
fprintf(w, "Specify a single tunnel to debug (0 to disable)\r\n");
return CLI_OK;
}
s = atoi(argv[0]);
if (debug_tunnel)
fprintf(w, "No longer debugging tunnel %d\r\n", debug_tunnel);
if (s) fprintf(w, "Debugging tunnel %d.\r\n", s);
debug_tunnel = s;
return CLI_OK;
}
int regular_stuff(struct cli_def *cli, FILE *w)
{
int i = debug_rb_tail;
#ifdef RINGBUFFER
while (i != ringbuffer->tail)
{
int show_message = 0;
if (*ringbuffer->buffer[i].message)
{
// 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;
}
if (show_message)
{
ipt address = ntohl(ringbuffer->buffer[i].address);
char *ipaddr;
struct in_addr addr;
memcpy(&addr, &address, sizeof(ringbuffer->buffer[i].address));
ipaddr = inet_ntoa(addr);
fprintf(w, "%s-%s-%u-%u %s\r",
debug_levels[(int)ringbuffer->buffer[i].level],
ipaddr,
ringbuffer->buffer[i].tunnel,
ringbuffer->buffer[i].session,
ringbuffer->buffer[i].message);
}
if (++i == ringbuffer->tail) break;
if (i == RINGBUFFER_SIZE) i = 0;
}
debug_rb_tail = ringbuffer->tail;
#endif
return CLI_OK;
}
#endif
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