// vim: sw=4 ts=8
char const *cvs_name = "$Name: $";
-char const *cvs_id_cli = "$Id: cli.c,v 1.7 2004/07/02 07:30:43 bodea Exp $";
+char const *cvs_id_cli = "$Id: cli.c,v 1.8 2004/07/07 09:09:53 bodea Exp $";
#include <stdio.h>
#include <stdarg.h>
int cmd_uptime(struct cli_def *cli, char *command, char **argv, int argc);
int regular_stuff(struct cli_def *cli);
-void init_cli()
+void init_cli(char *hostname)
{
FILE *f;
char buf[4096];
struct sockaddr_in addr;
cli = cli_init();
- cli_set_hostname(cli, "l2tpns");
+ if (hostname && *hostname)
+ cli_set_hostname(cli, hostname);
+ else
+ cli_set_hostname(cli, "l2tpns");
c = cli_register_command(cli, NULL, "show", NULL, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, NULL);
cli_register_command(cli, c, "banana", cmd_show_banana, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "Show a banana");
int cmd_show_session(struct cli_def *cli, char *command, char **argv, int argc)
{
int i;
- time_t time_now;
if (CLI_HELP_REQUESTED)
return cli_arg_help(cli, 1,
int cmd_show_tunnels(struct cli_def *cli, char *command, char **argv, int argc)
{
int i, x, show_all = 0;
- time_t time_now;
char *states[] = {
"Free",
"Open",
}
// Show tunnel summary
- cli_print(cli, "%s %s %s %s %s",
+ cli_print(cli, "%4s %20s %20s %6s %s",
"TID",
"Hostname",
"IP",
if (!show_all && (!tunnel[i].ip || tunnel[i].die || !tunnel[i].hostname[0])) continue;
for (x = 0; x < MAXSESSION; x++) if (session[x].tunnel == i && session[x].opened && !session[x].die) sessions++;
- cli_print(cli, "%d %s %s %s %d",
+ cli_print(cli, "%4d %20s %20s %6s %6d",
i,
*tunnel[i].hostname ? tunnel[i].hostname : "(null)",
inet_toa(htonl(tunnel[i].ip)),
{
int i;
int used = 0, free = 0, show_all = 0;
- time_t time_now;
if (!config->cluster_iam_master)
{
int cmd_show_radius(struct cli_def *cli, char *command, char **argv, int argc)
{
+ int i, free = 0, used = 0, show_all = 0;
char *states[] = {
"NULL",
"CHAP",
"STOP",
"WAIT",
};
- int i, free = 0, used = 0, show_all = 0;
- time_t time_now;
if (CLI_HELP_REQUESTED)
{
FILE *fh;
char buf[100], *p = buf, *loads[3];
int i, num_sessions = 0;
- time_t time_now;
if (CLI_HELP_REQUESTED)
return CLI_HELP_NO_ARGS;
// L2TPNS Clustering Stuff
-char const *cvs_id_cluster = "$Id: cluster.c,v 1.6 2004/07/05 06:54:01 bodea Exp $";
+char const *cvs_id_cluster = "$Id: cluster.c,v 1.7 2004/07/07 09:09:53 bodea Exp $";
#include <stdio.h>
#include <sys/file.h>
static int walk_session_number = 0; // The next session to send when doing the slow table walk.
static int walk_tunnel_number = 0; // The next tunnel to send when doing the slow table walk.
-static int hsess, fsess; // Saved copies of the highest used session id, and the first free one.
-
#define MAX_HEART_SIZE (8192) // Maximum size of heartbeat packet. Must be less than max IP packet size :)
#define MAX_CHANGES (MAX_HEART_SIZE/(sizeof(sessiont) + sizeof(int) ) - 2) // Assumes a session is the biggest type!
int uptodate;
} peers[CLUSTER_MAX_SIZE]; // List of all the peers we've heard from.
static int num_peers; // Number of peers in list.
-static int have_peers; // At least one peer
+static int have_peers; // At least one up to date peer
int rle_decompress(u8 ** src_p, int ssize, u8 *dst, int dsize);
int rle_compress(u8 ** src_p, int ssize, u8 *dst, int dsize);
if (!*config->cluster_interface)
return 0;
- cluster_sockfd = socket(AF_INET, SOCK_DGRAM, UDP);
+ cluster_sockfd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
memset(&addr, 0, sizeof(addr));
addr.sin_family = AF_INET;
addr.sin_port = htons(CLUSTERPORT);
addr.sin_family = AF_INET;
-// log_hex(4, "Cluster send", data, datalen); // VERY big data packets. How about we don't..
-
log(5,0,0,0, "Cluster send data: %d bytes\n", datalen);
if (sendto(cluster_sockfd, data, datalen, MSG_NOSIGNAL, (void *) &addr, sizeof(addr)) < 0)
log(0,0,0,0, "Now uptodate with master.\n");
- // If we're not a master, or if we have no slaves
- // then start taking traffic..
- if (!config->cluster_iam_master || !have_peers)
- {
#ifdef BGP
- if (bgp_configured)
- bgp_enable_routing(1);
- else
+ if (bgp_configured)
+ bgp_enable_routing(1);
+ else
#endif /* BGP */
- if (config->send_garp)
- send_garp(config->bind_address); // Start taking traffic.
- }
+ if (config->send_garp)
+ send_garp(config->bind_address); // Start taking traffic.
}
//
static void send_heartbeat(int seq, char * data, int size)
{
int i;
+ static int last_seq = -1;
+
+ if (last_seq != -1 && (seq != (last_seq+1)%HB_MAX_SEQ) ) {
+ log(0,0,0,0, "FATAL: Sequence number skipped! (%d != %d)\n",
+ seq, last_seq);
+ }
+ last_seq = seq;
if (size > sizeof(past_hearts[0].data)) {
log(0,0,0,0, "Tried to heartbeat something larger than the maximum packet!\n");
clockt t = TIME;
static int probed = 0;
- // Is the master late? If so, try probing it...
- if (TIME > (config->cluster_last_hb + config->cluster_hb_timeout/8 + 11)) {
- if (!probed) {
- if (config->cluster_master_address) {
- peer_send_message(config->cluster_master_address,
- C_LASTSEEN, config->cluster_seq_number, NULL, 0);
+ if (TIME < (config->cluster_last_hb + config->cluster_hb_timeout))
+ {
+ // If the master is late (missed 2 hearbeats by a second and a
+ // hair) it may be that the switch has dropped us from the
+ // multicast group, try unicasting one probe to the master
+ // which will hopefully respond with a unicast heartbeat that
+ // will allow us to limp along until the querier next runs.
+ if (config->cluster_master_address
+ && TIME > (config->cluster_last_hb + 2 * config->cluster_hb_interval + 11))
+ {
+ if (!probed)
+ {
probed = 1;
+ log(1, 0, 0, 0, "Heartbeat from master %.1fs late, probing...\n",
+ TIME - (config->cluster_last_hb + config->cluster_hb_interval));
+
+ peer_send_message(config->cluster_master_address,
+ C_LASTSEEN, config->cluster_seq_number, NULL, 0);
}
+ } else { // We got a recent heartbeat; reset the probe flag.
+ probed = 0;
}
- } else { // We got a recent heartbeat; reset the probe flag.
- probed = 0;
+
+ if (!config->cluster_iam_master)
+ return; // Everything's ok. return.
+
+ // Master needs to check peer state
}
- if (TIME < (config->cluster_last_hb + config->cluster_hb_timeout) )
- return; // Everything's ok. return.
+ config->cluster_last_hb = TIME + 1;
- if (!config->cluster_iam_master)
+ if (config->cluster_iam_master)
+ config->cluster_iam_uptodate = 1; // cleared in loop below
+ else
log(0,0,0,0, "Master timed out! Holding election...\n");
- config->cluster_last_hb = TIME + 1;
- for (i = have_peers = 0; i < num_peers ; ++i) {
+ for (i = have_peers = 0; i < num_peers; i++)
+ {
if ((peers[i].timestamp + config->cluster_hb_timeout) < t)
continue; // Stale peer! Skip them.
if (!peers[i].basetime)
continue; // Shutdown peer! Skip them.
- have_peers = 1;
+ if (peers[i].uptodate)
+ have_peers = 1;
+
+ if (config->cluster_iam_master)
+ {
+ if (!peers[i].uptodate)
+ config->cluster_iam_uptodate = 0; // Start fast heartbeats
+
+ continue;
+ }
+
if (peers[i].basetime < basetime) {
log(1,0,0,0, "Expecting %s to become master\n", inet_toa(peers[i].peer) );
return; // They'll win the election. Get out of here.
config->cluster_undefined_sessions = 0;
config->cluster_undefined_tunnels = 0;
+ config->cluster_iam_uptodate = 1; // assume all peers are up-to-date
- //
- // FIXME. We need to fix up the tunnel control message
- // queue here! There's a number of other variables we
- // should also update.
- cluster_uptodate();
+ // FIXME. We need to fix up the tunnel control message
+ // queue here! There's a number of other variables we
+ // should also update.
}
default:
log(0,0,0,0, "Found an invalid type in heart queue! (%d)\n", type);
kill(0, SIGTERM);
+ exit(1);
}
return 0;
}
//
// Send a heartbeat, incidently sending out any queued changes..
//
-void cluster_heartbeat(int highsession, int freesession, int hightunnel)
+void cluster_heartbeat()
{
int i, count = 0, tcount = 0;
char buff[MAX_HEART_SIZE + sizeof(heartt) + sizeof(int) ];
heartt h;
- char * p = buff;
+ char *p = buff;
if (!config->cluster_iam_master) // Only the master does this.
return;
- hsess = highsession;
- fsess = freesession;
- // Fill out the heartbeat header.
+ // Fill out the heartbeat header.
+ memset(&h, 0, sizeof(h));
+
h.version = HB_VERSION;
h.seq = config->cluster_seq_number;
h.basetime = basetime;
h.clusterid = config->bind_address; // Will this do??
h.basetime = basetime;
- h.highsession = highsession;
- h.freesession = freesession;
- h.hightunnel = hightunnel;
+ h.highsession = config->cluster_highest_sessionid;
+ h.freesession = sessionfree;
+ h.hightunnel = config->cluster_highest_tunnelid;
h.size_sess = sizeof(sessiont); // Just in case.
h.size_tunn = sizeof(tunnelt);
+ h.interval = config->cluster_hb_interval;
+ h.timeout = config->cluster_hb_timeout;
- add_type(&p, C_HEARTBEAT, HB_VERSION, (char*) &h, sizeof(h) );
+ add_type(&p, C_HEARTBEAT, HB_VERSION, (char*) &h, sizeof(h));
for (i = 0; i < config->cluster_num_changes; ++i) {
hb_add_type(&p, cluster_changes[i].type, cluster_changes[i].id);
if (p > (buff + sizeof(buff))) { // Did we somehow manage to overun the buffer?
log(0,0,0,0, "FATAL: Overran the heartbeat buffer! This is fatal. Exiting. (size %d)\n", p - buff);
kill(0, SIGTERM);
+ exit(1);
}
//
if (!walk_session_number) // session #0 isn't valid.
++walk_session_number;
- if (count >= highsession) // If we're a small cluster, don't go wild.
+ if (count >= config->cluster_highest_sessionid) // If we're a small cluster, don't go wild.
break;
hb_add_type(&p, C_CSESSION, walk_session_number);
- walk_session_number = (1+walk_session_number)%(highsession+1); // +1 avoids divide by zero.
+ walk_session_number = (1+walk_session_number)%(config->cluster_highest_sessionid+1); // +1 avoids divide by zero.
++count; // Count the number of extra sessions we're sending.
}
if (p > (buff + sizeof(buff))) { // Did we somehow manage to overun the buffer?
log(0,0,0,0, "Overran the heartbeat buffer now! This is fatal. Exiting. (size %d)\n", p - buff);
kill(0, SIGTERM);
+ exit(1);
}
log(3,0,0,0, "Sending heartbeat #%d with %d changes (%d x-sess, %d x-tunnels, %d highsess, %d hightun size %d)\n",
++config->cluster_num_changes;
if (config->cluster_num_changes > MAX_CHANGES)
- cluster_heartbeat(config->cluster_highest_sessionid, fsess, config->cluster_highest_tunnelid);
+ cluster_heartbeat(); // flush now
return 1;
}
while (seq != config->cluster_seq_number) {
s = seq%HB_HISTORY_SIZE;
if (seq != past_hearts[s].seq) {
+ int i;
log(0,0,0,0, "Tried to re-send heartbeat for %s but %d doesn't match %d! (%d,%d)\n",
inet_toa(slave), seq, past_hearts[s].seq, s, config->cluster_seq_number);
+
+ for (i = 0; i < HB_HISTORY_SIZE; ++i) {
+ log(0,0,0,0, "\tentry %3d: seq %d (size %d)\n", i, past_hearts[s].seq, past_hearts[s].size);
+ }
return -1; // What to do here!?
}
peer_send_data(slave, past_hearts[s].data, past_hearts[s].size);
return 0;
}
- // Is this the master shutting down??
- if (peer == config->cluster_master_address && !basetime) {
- config->cluster_master_address = 0;
- config->cluster_last_hb = 0; // Force an election.
- cluster_check_master();
- return 0;
- }
-
for (i = 0; i < num_peers ; ++i)
{
if (peers[i].peer != peer)
// This peer already exists. Just update the timestamp.
peers[i].basetime = basetime;
peers[i].timestamp = TIME;
+ peers[i].uptodate = !p->undef;
break;
}
+ // Is this the master shutting down??
+ if (peer == config->cluster_master_address && !basetime) {
+ config->cluster_master_address = 0;
+ config->cluster_last_hb = 0; // Force an election.
+ cluster_check_master();
+ return 0;
+ }
+
if (i >= num_peers)
{
log(4,0,0,0, "Adding %s as a peer\n", inet_toa(peer));
// Not found. Is there a stale slot to re-use?
for (i = 0; i < num_peers ; ++i)
{
- if (peers[i].peer != peer)
- continue;
+ if (!peers[i].basetime) // Shutdown
+ break;
+
if ((peers[i].timestamp + config->cluster_hb_timeout * 10) < TIME) // Stale.
break;
}
peers[i].peer = peer;
peers[i].basetime = basetime;
peers[i].timestamp = TIME;
+ peers[i].uptodate = !p->undef;
if (i == num_peers)
++num_peers;
log(1,0,0,0, "Added %s as a new peer. Now %d peers\n", inet_toa(peer), num_peers);
}
+ if (peers[i].uptodate)
+ {
#ifdef BGP
- /* drop routes if we've now got a peer */
- if (bgp_configured && config->cluster_iam_master && !have_peers)
- bgp_enable_routing(0);
+ /* drop routes if we've now got a peer */
+ if (config->cluster_iam_master && bgp_configured && !have_peers)
+ bgp_enable_routing(0);
#endif /* BGP */
+ have_peers = 1;
+ }
+ else if (config->cluster_iam_master)
+ {
+ config->cluster_iam_uptodate = 0; // increase heart-rate...
+ }
- have_peers = 1;
return 1;
}
if (!config->cluster_iam_uptodate)
cluster_uptodate(); // Check to see if we're up to date.
+
return 0;
}
//
-// Process a version one heartbeat..
+// Process a heartbeat..
//
-static int cluster_process_heartbeat_v2(u8 * data, int size, int more, u8 * p, u32 addr)
+static int cluster_process_heartbeat(u8 * data, int size, int more, u8 * p, u32 addr)
{
heartt * h;
int s = size - (p-data);
int i, type;
- if (more != HB_VERSION) {
- log(0,0,0,0, "Received a heartbeat version that I don't understand!\n");
+#if HB_VERSION != 3
+# error "need to update cluster_process_heartbeat()"
+#endif
+
+ // we handle version 2+
+ if (more < 2 || more > HB_VERSION) {
+ log(0,0,0,0, "Received a heartbeat version that I don't support (%d)!\n", more);
return -1; // Ignore it??
}
+
// Ok. It's a heartbeat packet from a cluster master!
if (s < sizeof(*h))
goto shortpacket;
-
h = (heartt*) p;
p += sizeof(*h);
s -= sizeof(*h);
// that the free session pointer is correct.
cluster_check_sessions(h->highsession, h->freesession, h->hightunnel);
+ if (more > 2) // reserved section of heartt was not initialized prior to v3
+ {
+ if (h->interval != config->cluster_hb_interval)
+ {
+ log(2, 0, 0, 0, "Master set ping/heartbeat interval to %u (was %u)\n",
+ h->interval, config->cluster_hb_interval);
+
+ config->cluster_hb_interval = h->interval;
+ }
+
+ if (h->timeout != config->cluster_hb_timeout)
+ {
+ log(2, 0, 0, 0, "Master set heartbeat timeout to %u (was %u)\n",
+ h->timeout, config->cluster_hb_timeout);
+
+ config->cluster_hb_timeout = h->timeout;
+ }
+ }
+
// Ok. process the packet...
while ( s > 0) {
case C_HEARTBEAT:
log(4,0,0,0, "Got a heartbeat from %s\n", inet_toa(addr));
-
- return cluster_process_heartbeat_v2(data, size, more, p, addr);
+ return cluster_process_heartbeat(data, size, more, p, addr);
default:
log(0,0,0,0, "Strange type packet received on cluster socket (%d)\n", type);
return -1;
}
return 0;
+
shortpacket:
log(0,0,0,0, "I got an cluster heartbeat packet! This means I'm probably out of sync!!\n");
return -1;
// L2TPNS Clustering Stuff
-// $Id: cluster.h,v 1.3 2004/06/23 03:52:24 fred_nerk Exp $
+// $Id: cluster.h,v 1.4 2004/07/07 09:09:53 bodea Exp $
#ifndef __CLUSTER_H__
#define __CLUSTER_H__
#define C_CTUNNEL 13 // Compressed tunnel structure.
#define C_GARDEN 14 // Gardened packet
-#define HB_VERSION 2 // Protocol version number..
+#define HB_VERSION 3 // Protocol version number..
#define HB_MAX_SEQ (1<<30) // Maximum sequence number. (MUST BE A POWER OF 2!)
#define HB_HISTORY_SIZE 64 // How many old heartbeats we remember?? (Must be a factor of HB_MAX_SEQ)
#define HB_TIMEOUT (15*2*PING_INTERVAL) // 15 seconds without heartbeat triggers an election..
#define CLUSTERPORT 32792
-#define UDP 17
-#define TIMEOUT 20
-#define IL sizeof(int)
-
#define CLUSTER_MAX_SIZE 32 // No more than 32 machines in a cluster!
#define DEFAULT_MCAST_ADDR "239.192.13.13" // Need an assigned number!
u32 size_sess; // Size of the session structure.
u32 size_tunn; // size of the tunnel structure.
+ u32 interval; // ping/heartbeat interval (if changed)
+ u32 timeout; // heartbeat timeout (if changed)
- char reserved[128 - 9*sizeof(u32)]; // Pad out to 128 bytes.
+ char reserved[128 - 11*sizeof(u32)]; // Pad out to 128 bytes.
} heartt;
typedef struct { /* Used to update byte counters on the */
void master_update_counts(void);
void cluster_send_ping(time_t basetime);
-void cluster_heartbeat(int highsession, int freesession, int hightunnel);
+void cluster_heartbeat(void);
void cluster_check_master(void);
int show_cluster(struct cli_def *cli, char *command, char **argv, int argc);
// Copyright (c) 2002 FireBrick (Andrews & Arnold Ltd / Watchfront Ltd) - GPL licenced
// vim: sw=8 ts=8
-char const *cvs_id_l2tpns = "$Id: l2tpns.c,v 1.10 2004/07/02 07:31:23 bodea Exp $";
+char const *cvs_id_l2tpns = "$Id: l2tpns.c,v 1.11 2004/07/07 09:09:53 bodea Exp $";
#include <arpa/inet.h>
#include <assert.h>
addr.sin_family = AF_INET;
addr.sin_port = htons(L2TPPORT);
addr.sin_addr.s_addr = config->bind_address;
- udpfd = socket(AF_INET, SOCK_DGRAM, UDP);
+ udpfd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
setsockopt(udpfd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
{
int flags = fcntl(udpfd, F_GETFL, 0);
log(0, 0, 0, 0, "Error in UDP bind: %s\n", strerror(errno));
exit(1);
}
- snoopfd = socket(AF_INET, SOCK_DGRAM, UDP);
+ snoopfd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
snoop_addr.sin_family = AF_INET;
// Control
if (!r)
r = radiusnew(s);
+
if (radius[r].state != RADIUSIPCP)
{
radius[r].state = RADIUSIPCP;
radius[r].try = 0;
}
+
radius[r].retry = backoff(radius[r].try++);
if (radius[r].try > 10)
{
+ radiusclear(r, s); // Clear radius session.
sessionshutdown(s, "No reply on IPCP");
return;
}
sessionshutdown(s, reason); // close radius/routes, etc.
if (session[s].radius)
radiusclear(session[s].radius, 0); // cant send clean accounting data, session is killed
+
log(2, 0, s, session[s].tunnel, "Kill session %d (%s): %s\n", s, session[s].user, reason);
throttle_session(s, 0); // Force session to be un-throttle. Free'ing TBF structures.
// TBA - to send to RADIUS
break;
case 8: // vendor name
- memset(tunnel[t].vendor, 0, 128);
- memcpy(tunnel[t].vendor, b, (n >= 127) ? 127 : n);
+ memset(tunnel[t].vendor, 0, sizeof(tunnel[t].vendor));
+ memcpy(tunnel[t].vendor, b, (n >= sizeof(tunnel[t].vendor) - 1) ? sizeof(tunnel[t].vendor) - 1 : n);
log(4, ntohl(addr->sin_addr.s_addr), s, t, " Vendor name = \"%s\"\n", tunnel[t].vendor);
break;
case 9: // assigned tunnel
if (!(r = radiusnew(s)))
{
log(1, ntohl(addr->sin_addr.s_addr), s, t, "No free RADIUS sessions for ICRQ\n");
-// sessionkill(s, "no free RADIUS sesions");
+ sessionkill(s, "no free RADIUS sesions");
return;
}
} else
radius[r].retry = backoff(radius[r].try+1); // Is this really needed? --mo
}
- for (t = 1; t < config->cluster_highest_tunnelid; t++)
+ for (t = 1; t <= config->cluster_highest_tunnelid; t++)
{
// check for expired tunnels
if (tunnel[t].die && tunnel[t].die <= TIME)
int cn, i;
u8 buf[65536];
struct timeval to;
- time_t next_cluster_ping = 0; // default 1 second pings.
- clockt next_clean = time_now + config->cleanup_interval;
+ clockt next_cluster_ping = 0; // send initial ping immediately
+ time_t next_clean = time_now + config->cleanup_interval;
log(4, 0, 0, 0, "Beginning of main loop. udpfd=%d, tapfd=%d, cluster_sockfd=%d, controlfd=%d\n",
udpfd, tapfd, cluster_sockfd, controlfd);
}
// Runs on every machine (master and slaves).
- if (cluster_sockfd && next_cluster_ping <= time_now)
+ if (cluster_sockfd && next_cluster_ping <= TIME)
{
// Check to see which of the cluster is still alive..
- next_cluster_ping = time_now + 1;
cluster_send_ping(basetime);
-
cluster_check_master();
-
- cluster_heartbeat(config->cluster_highest_sessionid, sessionfree, config->cluster_highest_tunnelid); // Only does anything if we're a master.
+ cluster_heartbeat(); // Only does anything if we're a master.
master_update_counts(); // If we're a slave, send our byte counters to our master.
+ if (config->cluster_iam_master && !config->cluster_iam_uptodate)
+ next_cluster_ping = TIME + 1; // out-of-date slaves, do fast updates
+ else
+ next_cluster_ping = TIME + config->cluster_hb_interval;
}
// Run token bucket filtering queue..
}
// Are we the master and shutting down??
- if (config->cluster_iam_master) {
-
- cluster_heartbeat(config->cluster_highest_sessionid, sessionfree,
- config->cluster_highest_tunnelid); // Flush any queued changes..
- }
+ if (config->cluster_iam_master)
+ cluster_heartbeat(); // Flush any queued changes..
// Ok. Notify everyone we're shutting down. If we're
// the master, this will force an election.
ip_address_pool = mmap(NULL, sizeof(ippoolt) * MAXIPPOOL, PROT_READ | PROT_WRITE, MAP_SHARED | MAP_ANONYMOUS, 0, 0);
if (ip_address_pool == MAP_FAILED)
{
- log(0, 0, 0, 0, "Error doing mmap for radius: %s\n", strerror(errno));
+ log(0, 0, 0, 0, "Error doing mmap for ip_address_pool: %s\n", strerror(errno));
exit(1);
}
#ifdef RINGBUFFER
ringbuffer = mmap(NULL, sizeof(struct Tringbuffer), PROT_READ | PROT_WRITE, MAP_SHARED | MAP_ANONYMOUS, 0, 0);
if (ringbuffer == MAP_FAILED)
{
- log(0, 0, 0, 0, "Error doing mmap for radius: %s\n", strerror(errno));
+ log(0, 0, 0, 0, "Error doing mmap for ringbuffer: %s\n", strerror(errno));
exit(1);
}
memset(ringbuffer, 0, sizeof(struct Tringbuffer));
if (!*hostname)
{
+ char *p;
// Grab my hostname unless it's been specified
gethostname(hostname, sizeof(hostname));
+ if ((p = strchr(hostname, '.'))) *p = 0;
}
_statistics->start_time = _statistics->last_reset = time(NULL);
{
u32 i;
int best = -1;
- clockt best_time = time_now;
+ time_t best_time = time_now;
char *u = session[s].user;
char reuse = 0;
config->debug++;
break;
case 'h':
- strncpy(hostname, optarg, 999);
+ snprintf(hostname, sizeof(hostname), "%s", optarg);
break;
case '?':
default:
initplugins();
initdata();
init_tbf();
- init_cli();
+ init_cli(hostname);
read_config_file();
log(0, 0, 0, 0, "L2TPNS version " VERSION "\n");
void update_config()
{
int i;
+ static int timeout = 0;
+ static int interval = 0;
// Update logging
closelog();
if (!config->cluster_hb_timeout)
config->cluster_hb_timeout = HB_TIMEOUT; // 10 missed heartbeat triggers an election.
+ if (interval != config->cluster_hb_interval || timeout != config->cluster_hb_timeout)
+ {
+ // Paranoia: cluster_check_master() treats 2 x interval + 1 sec as
+ // late, ensure we're sufficiently larger than that
+ int t = 4 * config->cluster_hb_interval + 11;
+
+ if (config->cluster_hb_timeout < t)
+ {
+ log(0,0,0,0, "Heartbeat timeout %d too low, adjusting to %d\n", config->cluster_hb_timeout, t);
+ config->cluster_hb_timeout = t;
+ }
+
+ // Push timing changes to the slaves immediately if we're the master
+ if (config->cluster_iam_master)
+ cluster_heartbeat();
+
+ interval = config->cluster_hb_interval;
+ timeout = config->cluster_hb_timeout;
+ }
+
config->reload_config = 0;
}
int s;
run_plugins(PLUGIN_BECOME_MASTER, NULL);
- for (s = 0; s < config->cluster_highest_sessionid ; ++s) {
+ for (s = 1; s <= config->cluster_highest_sessionid ; ++s) {
if (!session[s].tunnel) // Not an in-use session.
continue;
time(&time_now);
for (i = 0; i < 64;++i) buckets[i] = 0;
- for (s = 0; s < config->cluster_highest_sessionid ; ++s) {
+ for (s = 1; s <= config->cluster_highest_sessionid ; ++s) {
int idle;
if (!session[s].tunnel)
continue;
time(&time_now);
for (i = 0; i < 64;++i) buckets[i] = 0;
- for (s = 0; s < config->cluster_highest_sessionid ; ++s) {
+ for (s = 1; s <= config->cluster_highest_sessionid ; ++s) {
int open = 0, d;
if (!session[s].tunnel)
continue;
// L2TPNS Global Stuff
-// $Id: l2tpns.h,v 1.9 2004/07/02 07:31:23 bodea Exp $
+// $Id: l2tpns.h,v 1.10 2004/07/07 09:09:53 bodea Exp $
#ifndef __L2TPNS_H__
#define __L2TPNS_H__
#endif
#define TAPDEVICE "/dev/net/tun"
-#define UDP 17
#define STATEFILE DATADIR "/state.dump" // State dump file
#define CONFIGFILE FLASHDIR "/startup-config" // Configuration file
#define CLIUSERS FLASHDIR "/users" // CLI Users file
int cluster_send_session(int s);
int cluster_send_tunnel(int t);
int cluster_send_goodbye();
-void init_cli();
+void init_cli(char *hostname);
void cli_do_file(FILE *fh);
void cli_do(int sockfd);
int cli_arg_help(struct cli_def *cli, int cr_ok, char *entry, ...);
// L2TPNS Radius Stuff
-char const *cvs_id_radius = "$Id: radius.c,v 1.6 2004/07/02 07:31:23 bodea Exp $";
+char const *cvs_id_radius = "$Id: radius.c,v 1.7 2004/07/07 09:09:53 bodea Exp $";
#include <time.h>
#include <stdio.h>
for (i = 0; i < config->num_radfds; i++)
{
int flags;
- if (!radfds[i]) radfds[i] = socket(AF_INET, SOCK_DGRAM, UDP);
+ if (!radfds[i]) radfds[i] = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
flags = fcntl(radfds[i], F_GETFL, 0);
fcntl(radfds[i], F_SETFL, flags | O_NONBLOCK);
}
}
-static u16 new_radius()
+static u16 get_free_radius()
{
int count;
static u32 next_radius_id = 0;
u16 radiusnew(sessionidt s)
{
- u16 r;
- if (!(r = new_radius()))
+ u16 r = session[s].radius;
+
+ /* re-use */
+ if (r)
+ {
+ log(3, 0, s, session[s].tunnel, "Re-used radius %d\n", r);
+ return r;
+ }
+
+ if (!(r = get_free_radius()))
{
log(1, 0, s, session[s].tunnel, "No free RADIUS sessions\n");
STAT(radius_overflow);
return 0;
};
+
memset(&radius[r], 0, sizeof(radius[r]));
session[s].radius = r;
radius[r].session = s;
if (memcmp(hash, buf + 4, 16))
{
log(0, 0, s, session[s].tunnel, " Incorrect auth on RADIUS response!! (wrong secret in radius config?)\n");
-// radius[r].state = RADIUSWAIT;
-
return; // Do nothing. On timeout, it will try the next radius server.
}
if ((radius[r].state == RADIUSAUTH && *buf != 2 && *buf != 3) ||
((radius[r].state == RADIUSSTART || radius[r].state == RADIUSSTOP) && *buf != 5))
{
log(1, 0, s, session[s].tunnel, " Unexpected RADIUS response %d\n", *buf);
-
return; // We got something we didn't expect. Let the timeouts take
// care off finishing the radius session if that's really correct.
-// old code. I think incorrect. --mo
-// radius[r].state = RADIUSWAIT;
-// break; // Finish the radius sesssion.
}
if (radius[r].state == RADIUSAUTH)
{
projects / l2tpns.git / commitdiff