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- set hostname in CLI prompt

Browse source 
- add assertions to help identify odd LASTSEEN breakage
- make cluster_hb_interval work; include interval/timeout in heartbeats
  so that a change on the master is propagated immediately to the slaves
- use fast heartbeats when there are slaves not up to date
- ensure basetime of shut down master is set to zero (prevent delayed election)
- fix radius session leak on IPCP timeout
- fix some off-by-one errors in tunnel/session loops
This commit is contained in:
Brendan O'Dea 2004-07-07 09:09:53 +00:00
parent d78201b5d7
commit 4ad7536258
6 changed files with 224 additions and 131 deletions
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20
cli.c
View file

@ -2,7 +2,7 @@
// vim: sw=4 ts=8 // vim: sw=4 ts=8
char const *cvs_name = "$Name: $"; char const *cvs_name = "$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 <stdio.h>
#include <stdarg.h> #include <stdarg.h>
@ -102,7 +102,7 @@ int cmd_remove_plugin(struct cli_def *cli, char *command, char **argv, int argc)
int cmd_uptime(struct cli_def *cli, char *command, char **argv, int argc); int cmd_uptime(struct cli_def *cli, char *command, char **argv, int argc);
int regular_stuff(struct cli_def *cli); int regular_stuff(struct cli_def *cli);
void init_cli() void init_cli(char *hostname)
{ {
FILE *f; FILE *f;
char buf[4096]; char buf[4096];
@ -112,7 +112,10 @@ void init_cli()
struct sockaddr_in addr; struct sockaddr_in addr;
cli = cli_init(); 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); 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"); cli_register_command(cli, c, "banana", cmd_show_banana, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "Show a banana");
@ -374,7 +377,6 @@ int cli_arg_help(struct cli_def *cli, int cr_ok, char *entry, ...)
int cmd_show_session(struct cli_def *cli, char *command, char **argv, int argc) int cmd_show_session(struct cli_def *cli, char *command, char **argv, int argc)
{ {
int i; int i;
time_t time_now;
if (CLI_HELP_REQUESTED) if (CLI_HELP_REQUESTED)
return cli_arg_help(cli, 1, return cli_arg_help(cli, 1,
@ -466,7 +468,6 @@ int cmd_show_session(struct cli_def *cli, char *command, char **argv, int argc)
int cmd_show_tunnels(struct cli_def *cli, char *command, char **argv, int argc) int cmd_show_tunnels(struct cli_def *cli, char *command, char **argv, int argc)
{ {
int i, x, show_all = 0; int i, x, show_all = 0;
time_t time_now;
char *states[] = { char *states[] = {
"Free", "Free",
"Open", "Open",
@ -528,7 +529,7 @@ int cmd_show_tunnels(struct cli_def *cli, char *command, char **argv, int argc)
} }
// Show tunnel summary // Show tunnel summary
cli_print(cli, "%s %s %s %s %s", cli_print(cli, "%4s %20s %20s %6s %s",
"TID", "TID",
"Hostname", "Hostname",
"IP", "IP",
@ -540,7 +541,7 @@ int cmd_show_tunnels(struct cli_def *cli, char *command, char **argv, int argc)
if (!show_all && (!tunnel[i].ip || tunnel[i].die || !tunnel[i].hostname[0])) continue; 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++; 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, i,
*tunnel[i].hostname ? tunnel[i].hostname : "(null)", *tunnel[i].hostname ? tunnel[i].hostname : "(null)",
inet_toa(htonl(tunnel[i].ip)), inet_toa(htonl(tunnel[i].ip)),
@ -753,7 +754,6 @@ int cmd_show_pool(struct cli_def *cli, char *command, char **argv, int argc)
{ {
int i; int i;
int used = 0, free = 0, show_all = 0; int used = 0, free = 0, show_all = 0;
time_t time_now;
if (!config->cluster_iam_master) if (!config->cluster_iam_master)
{ {
@ -873,6 +873,7 @@ int cmd_show_run(struct cli_def *cli, char *command, char **argv, int argc)
int cmd_show_radius(struct cli_def *cli, char *command, char **argv, int argc) 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[] = { char *states[] = {
"NULL", "NULL",
"CHAP", "CHAP",
@ -882,8 +883,6 @@ int cmd_show_radius(struct cli_def *cli, char *command, char **argv, int argc)
"STOP", "STOP",
"WAIT", "WAIT",
}; };
int i, free = 0, used = 0, show_all = 0;
time_t time_now;
if (CLI_HELP_REQUESTED) if (CLI_HELP_REQUESTED)
{ {
@ -1544,7 +1543,6 @@ int cmd_uptime(struct cli_def *cli, char *command, char **argv, int argc)
FILE *fh; FILE *fh;
char buf[100], *p = buf, *loads[3]; char buf[100], *p = buf, *loads[3];
int i, num_sessions = 0; int i, num_sessions = 0;
time_t time_now;
if (CLI_HELP_REQUESTED) if (CLI_HELP_REQUESTED)
return CLI_HELP_NO_ARGS; return CLI_HELP_NO_ARGS;

211
cluster.c
View file

@ -1,6 +1,6 @@
// L2TPNS Clustering Stuff // 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 <stdio.h>
#include <sys/file.h> #include <sys/file.h>
@ -44,8 +44,6 @@ ipt my_address = 0; // The network address of my ethernet port.
static int walk_session_number = 0; // The next session to send when doing the slow table walk. 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 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_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! #define MAX_CHANGES (MAX_HEART_SIZE/(sizeof(sessiont) + sizeof(int) ) - 2) // Assumes a session is the biggest type!
@ -68,7 +66,7 @@ static struct {
int uptodate; int uptodate;
} peers[CLUSTER_MAX_SIZE]; // List of all the peers we've heard from. } peers[CLUSTER_MAX_SIZE]; // List of all the peers we've heard from.
static int num_peers; // Number of peers in list. 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_decompress(u8 ** src_p, int ssize, u8 *dst, int dsize);
int rle_compress(u8 ** src_p, int ssize, u8 *dst, int dsize); int rle_compress(u8 ** src_p, int ssize, u8 *dst, int dsize);
@ -94,7 +92,7 @@ int cluster_init()
if (!*config->cluster_interface) if (!*config->cluster_interface)
return 0; return 0;
cluster_sockfd = socket(AF_INET, SOCK_DGRAM, UDP); cluster_sockfd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
memset(&addr, 0, sizeof(addr)); memset(&addr, 0, sizeof(addr));
addr.sin_family = AF_INET; addr.sin_family = AF_INET;
@ -158,8 +156,6 @@ int cluster_send_data(void *data, int datalen)
addr.sin_port = htons(CLUSTERPORT); addr.sin_port = htons(CLUSTERPORT);
addr.sin_family = AF_INET; 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); 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) if (sendto(cluster_sockfd, data, datalen, MSG_NOSIGNAL, (void *) &addr, sizeof(addr)) < 0)
@ -202,18 +198,13 @@ void cluster_uptodate(void)
log(0,0,0,0, "Now uptodate with master.\n"); 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 #ifdef BGP
if (bgp_configured) if (bgp_configured)
bgp_enable_routing(1); bgp_enable_routing(1);
else else
#endif /* BGP */ #endif /* BGP */
if (config->send_garp) if (config->send_garp)
send_garp(config->bind_address); // Start taking traffic. send_garp(config->bind_address); // Start taking traffic.
}
} }
// //
@ -339,6 +330,13 @@ int master_garden_packet(sessionidt s, char *data, int size)
static void send_heartbeat(int seq, char * data, int size) static void send_heartbeat(int seq, char * data, int size)
{ {
int i; 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)) { if (size > sizeof(past_hearts[0].data)) {
log(0,0,0,0, "Tried to heartbeat something larger than the maximum packet!\n"); log(0,0,0,0, "Tried to heartbeat something larger than the maximum packet!\n");
@ -440,35 +438,62 @@ void cluster_check_master(void)
clockt t = TIME; clockt t = TIME;
static int probed = 0; static int probed = 0;
// Is the master late? If so, try probing it... if (TIME < (config->cluster_last_hb + config->cluster_hb_timeout))
if (TIME > (config->cluster_last_hb + config->cluster_hb_timeout/8 + 11)) { {
if (!probed) { // If the master is late (missed 2 hearbeats by a second and a
if (config->cluster_master_address) { // hair) it may be that the switch has dropped us from the
peer_send_message(config->cluster_master_address, // multicast group, try unicasting one probe to the master
C_LASTSEEN, config->cluster_seq_number, NULL, 0); // 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; 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.
if (!config->cluster_iam_master)
log(0,0,0,0, "Master timed out! Holding election...\n");
config->cluster_last_hb = TIME + 1; config->cluster_last_hb = TIME + 1;
for (i = have_peers = 0; i < num_peers ; ++i) { 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");
for (i = have_peers = 0; i < num_peers; i++)
{
if ((peers[i].timestamp + config->cluster_hb_timeout) < t) if ((peers[i].timestamp + config->cluster_hb_timeout) < t)
continue; // Stale peer! Skip them. continue; // Stale peer! Skip them.
if (!peers[i].basetime) if (!peers[i].basetime)
continue; // Shutdown peer! Skip them. 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) { if (peers[i].basetime < basetime) {
log(1,0,0,0, "Expecting %s to become master\n", inet_toa(peers[i].peer) ); 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. return; // They'll win the election. Get out of here.
@ -586,12 +611,11 @@ void cluster_check_master(void)
config->cluster_undefined_sessions = 0; config->cluster_undefined_sessions = 0;
config->cluster_undefined_tunnels = 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
// FIXME. We need to fix up the tunnel control message // queue here! There's a number of other variables we
// queue here! There's a number of other variables we // should also update.
// should also update.
cluster_uptodate();
} }
@ -699,6 +723,7 @@ int hb_add_type(char **p, int type, int id)
default: default:
log(0,0,0,0, "Found an invalid type in heart queue! (%d)\n", type); log(0,0,0,0, "Found an invalid type in heart queue! (%d)\n", type);
kill(0, SIGTERM); kill(0, SIGTERM);
exit(1);
} }
return 0; return 0;
} }
@ -706,31 +731,33 @@ int hb_add_type(char **p, int type, int id)
// //
// Send a heartbeat, incidently sending out any queued changes.. // 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; int i, count = 0, tcount = 0;
char buff[MAX_HEART_SIZE + sizeof(heartt) + sizeof(int) ]; char buff[MAX_HEART_SIZE + sizeof(heartt) + sizeof(int) ];
heartt h; heartt h;
char * p = buff; char *p = buff;
if (!config->cluster_iam_master) // Only the master does this. if (!config->cluster_iam_master) // Only the master does this.
return; return;
hsess = highsession; // Fill out the heartbeat header.
fsess = freesession; memset(&h, 0, sizeof(h));
// Fill out the heartbeat header.
h.version = HB_VERSION; h.version = HB_VERSION;
h.seq = config->cluster_seq_number; h.seq = config->cluster_seq_number;
h.basetime = basetime; h.basetime = basetime;
h.clusterid = config->bind_address; // Will this do?? h.clusterid = config->bind_address; // Will this do??
h.basetime = basetime; h.basetime = basetime;
h.highsession = highsession; h.highsession = config->cluster_highest_sessionid;
h.freesession = freesession; h.freesession = sessionfree;
h.hightunnel = hightunnel; h.hightunnel = config->cluster_highest_tunnelid;
h.size_sess = sizeof(sessiont); // Just in case. h.size_sess = sizeof(sessiont); // Just in case.
h.size_tunn = sizeof(tunnelt); 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) { for (i = 0; i < config->cluster_num_changes; ++i) {
hb_add_type(&p, cluster_changes[i].type, cluster_changes[i].id); hb_add_type(&p, cluster_changes[i].type, cluster_changes[i].id);
@ -739,6 +766,7 @@ void cluster_heartbeat(int highsession, int freesession, int hightunnel)
if (p > (buff + sizeof(buff))) { // Did we somehow manage to overun the buffer? 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); log(0,0,0,0, "FATAL: Overran the heartbeat buffer! This is fatal. Exiting. (size %d)\n", p - buff);
kill(0, SIGTERM); kill(0, SIGTERM);
exit(1);
} }
// //
@ -749,11 +777,11 @@ void cluster_heartbeat(int highsession, int freesession, int hightunnel)
if (!walk_session_number) // session #0 isn't valid. if (!walk_session_number) // session #0 isn't valid.
++walk_session_number; ++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; break;
hb_add_type(&p, C_CSESSION, walk_session_number); 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. ++count; // Count the number of extra sessions we're sending.
} }
@ -783,6 +811,7 @@ void cluster_heartbeat(int highsession, int freesession, int hightunnel)
if (p > (buff + sizeof(buff))) { // Did we somehow manage to overun the buffer? 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); log(0,0,0,0, "Overran the heartbeat buffer now! This is fatal. Exiting. (size %d)\n", p - buff);
kill(0, SIGTERM); 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", log(3,0,0,0, "Sending heartbeat #%d with %d changes (%d x-sess, %d x-tunnels, %d highsess, %d hightun size %d)\n",
@ -813,7 +842,7 @@ int type_changed(int type, int id)
++config->cluster_num_changes; ++config->cluster_num_changes;
if (config->cluster_num_changes > MAX_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; return 1;
} }
@ -868,8 +897,13 @@ int cluster_catchup_slave(int seq, u32 slave)
while (seq != config->cluster_seq_number) { while (seq != config->cluster_seq_number) {
s = seq%HB_HISTORY_SIZE; s = seq%HB_HISTORY_SIZE;
if (seq != past_hearts[s].seq) { 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", 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); 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!? return -1; // What to do here!?
} }
peer_send_data(slave, past_hearts[s].data, past_hearts[s].size); peer_send_data(slave, past_hearts[s].data, past_hearts[s].size);
@ -895,14 +929,6 @@ int cluster_add_peer(u32 peer, time_t basetime, pingt *p)
return 0; 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) for (i = 0; i < num_peers ; ++i)
{ {
if (peers[i].peer != peer) if (peers[i].peer != peer)
@ -911,9 +937,18 @@ int cluster_add_peer(u32 peer, time_t basetime, pingt *p)
// This peer already exists. Just update the timestamp. // This peer already exists. Just update the timestamp.
peers[i].basetime = basetime; peers[i].basetime = basetime;
peers[i].timestamp = TIME; peers[i].timestamp = TIME;
peers[i].uptodate = !p->undef;
break; 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) if (i >= num_peers)
{ {
log(4,0,0,0, "Adding %s as a peer\n", inet_toa(peer)); log(4,0,0,0, "Adding %s as a peer\n", inet_toa(peer));
@ -921,8 +956,9 @@ int cluster_add_peer(u32 peer, time_t basetime, pingt *p)
// Not found. Is there a stale slot to re-use? // Not found. Is there a stale slot to re-use?
for (i = 0; i < num_peers ; ++i) for (i = 0; i < num_peers ; ++i)
{ {
if (peers[i].peer != peer) if (!peers[i].basetime) // Shutdown
continue; break;
if ((peers[i].timestamp + config->cluster_hb_timeout * 10) < TIME) // Stale. if ((peers[i].timestamp + config->cluster_hb_timeout * 10) < TIME) // Stale.
break; break;
} }
@ -937,19 +973,27 @@ int cluster_add_peer(u32 peer, time_t basetime, pingt *p)
peers[i].peer = peer; peers[i].peer = peer;
peers[i].basetime = basetime; peers[i].basetime = basetime;
peers[i].timestamp = TIME; peers[i].timestamp = TIME;
peers[i].uptodate = !p->undef;
if (i == num_peers) if (i == num_peers)
++num_peers; ++num_peers;
log(1,0,0,0, "Added %s as a new peer. Now %d peers\n", inet_toa(peer), 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 #ifdef BGP
/* drop routes if we've now got a peer */ /* drop routes if we've now got a peer */
if (bgp_configured && config->cluster_iam_master && !have_peers) if (config->cluster_iam_master && bgp_configured && !have_peers)
bgp_enable_routing(0); bgp_enable_routing(0);
#endif /* BGP */ #endif /* BGP */
have_peers = 1;
}
else if (config->cluster_iam_master)
{
config->cluster_iam_uptodate = 0; // increase heart-rate...
}
have_peers = 1;
return 1; return 1;
} }
@ -1017,6 +1061,7 @@ static int cluster_recv_session(int more , u8 * p)
if (!config->cluster_iam_uptodate) if (!config->cluster_iam_uptodate)
cluster_uptodate(); // Check to see if we're up to date. cluster_uptodate(); // Check to see if we're up to date.
return 0; return 0;
} }
@ -1054,23 +1099,28 @@ static int cluster_recv_tunnel(int more, u8 *p)
// //
// 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; heartt * h;
int s = size - (p-data); int s = size - (p-data);
int i, type; int i, type;
if (more != HB_VERSION) { #if HB_VERSION != 3
log(0,0,0,0, "Received a heartbeat version that I don't understand!\n"); # 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?? return -1; // Ignore it??
} }
// Ok. It's a heartbeat packet from a cluster master! // Ok. It's a heartbeat packet from a cluster master!
if (s < sizeof(*h)) if (s < sizeof(*h))
goto shortpacket; goto shortpacket;
h = (heartt*) p; h = (heartt*) p;
p += sizeof(*h); p += sizeof(*h);
s -= sizeof(*h); s -= sizeof(*h);
@ -1128,6 +1178,25 @@ static int cluster_process_heartbeat_v2(u8 * data, int size, int more, u8 * p, u
// that the free session pointer is correct. // that the free session pointer is correct.
cluster_check_sessions(h->highsession, h->freesession, h->hightunnel); 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... // Ok. process the packet...
while ( s > 0) { while ( s > 0) {
@ -1315,14 +1384,14 @@ int processcluster(char * data, int size, u32 addr)
case C_HEARTBEAT: case C_HEARTBEAT:
log(4,0,0,0, "Got a heartbeat from %s\n", inet_toa(addr)); log(4,0,0,0, "Got a heartbeat from %s\n", inet_toa(addr));
return cluster_process_heartbeat(data, size, more, p, addr);
return cluster_process_heartbeat_v2(data, size, more, p, addr);
default: default:
log(0,0,0,0, "Strange type packet received on cluster socket (%d)\n", type); log(0,0,0,0, "Strange type packet received on cluster socket (%d)\n", type);
return -1; return -1;
} }
return 0; return 0;
shortpacket: shortpacket:
log(0,0,0,0, "I got an cluster heartbeat packet! This means I'm probably out of sync!!\n"); log(0,0,0,0, "I got an cluster heartbeat packet! This means I'm probably out of sync!!\n");
return -1; return -1;

14
cluster.h
View file

@ -1,5 +1,5 @@
// L2TPNS Clustering Stuff // 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__ #ifndef __CLUSTER_H__
#define __CLUSTER_H__ #define __CLUSTER_H__
@ -20,7 +20,7 @@
#define C_CTUNNEL 13 // Compressed tunnel structure. #define C_CTUNNEL 13 // Compressed tunnel structure.
#define C_GARDEN 14 // Gardened packet #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_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_HISTORY_SIZE 64 // How many old heartbeats we remember?? (Must be a factor of HB_MAX_SEQ)
@ -28,10 +28,6 @@
#define HB_TIMEOUT (15*2*PING_INTERVAL) // 15 seconds without heartbeat triggers an election.. #define HB_TIMEOUT (15*2*PING_INTERVAL) // 15 seconds without heartbeat triggers an election..
#define CLUSTERPORT 32792 #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 CLUSTER_MAX_SIZE 32 // No more than 32 machines in a cluster!
#define DEFAULT_MCAST_ADDR "239.192.13.13" // Need an assigned number! #define DEFAULT_MCAST_ADDR "239.192.13.13" // Need an assigned number!
@ -49,8 +45,10 @@ typedef struct {
u32 size_sess; // Size of the session structure. u32 size_sess; // Size of the session structure.
u32 size_tunn; // size of the tunnel 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; } heartt;
typedef struct { /* Used to update byte counters on the */ typedef struct { /* Used to update byte counters on the */
@ -78,7 +76,7 @@ int master_garden_packet(sessionidt s, char * data, int size);
void master_update_counts(void); void master_update_counts(void);
void cluster_send_ping(time_t basetime); 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); void cluster_check_master(void);
int show_cluster(struct cli_def *cli, char *command, char **argv, int argc); int show_cluster(struct cli_def *cli, char *command, char **argv, int argc);

80
l2tpns.c
View file

@ -4,7 +4,7 @@
// Copyright (c) 2002 FireBrick (Andrews & Arnold Ltd / Watchfront Ltd) - GPL licenced // Copyright (c) 2002 FireBrick (Andrews & Arnold Ltd / Watchfront Ltd) - GPL licenced
// vim: sw=8 ts=8 // 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 <arpa/inet.h>
#include <assert.h> #include <assert.h>
@ -418,7 +418,7 @@ void initudp(void)
addr.sin_family = AF_INET; addr.sin_family = AF_INET;
addr.sin_port = htons(L2TPPORT); addr.sin_port = htons(L2TPPORT);
addr.sin_addr.s_addr = config->bind_address; 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)); setsockopt(udpfd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
{ {
int flags = fcntl(udpfd, F_GETFL, 0); int flags = fcntl(udpfd, F_GETFL, 0);
@ -429,7 +429,7 @@ void initudp(void)
log(0, 0, 0, 0, "Error in UDP bind: %s\n", strerror(errno)); log(0, 0, 0, 0, "Error in UDP bind: %s\n", strerror(errno));
exit(1); exit(1);
} }
snoopfd = socket(AF_INET, SOCK_DGRAM, UDP); snoopfd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
snoop_addr.sin_family = AF_INET; snoop_addr.sin_family = AF_INET;
// Control // Control
@ -1161,14 +1161,17 @@ void sendipcp(tunnelidt t, sessionidt s)
if (!r) if (!r)
r = radiusnew(s); r = radiusnew(s);
if (radius[r].state != RADIUSIPCP) if (radius[r].state != RADIUSIPCP)
{ {
radius[r].state = RADIUSIPCP; radius[r].state = RADIUSIPCP;
radius[r].try = 0; radius[r].try = 0;
} }
radius[r].retry = backoff(radius[r].try++); radius[r].retry = backoff(radius[r].try++);
if (radius[r].try > 10) if (radius[r].try > 10)
{ {
radiusclear(r, s); // Clear radius session.
sessionshutdown(s, "No reply on IPCP"); sessionshutdown(s, "No reply on IPCP");
return; return;
} }
@ -1198,6 +1201,7 @@ void sessionkill(sessionidt s, char *reason)
sessionshutdown(s, reason); // close radius/routes, etc. sessionshutdown(s, reason); // close radius/routes, etc.
if (session[s].radius) if (session[s].radius)
radiusclear(session[s].radius, 0); // cant send clean accounting data, session is killed 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); 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. throttle_session(s, 0); // Force session to be un-throttle. Free'ing TBF structures.
@ -1585,8 +1589,8 @@ void processudp(u8 * buf, int len, struct sockaddr_in *addr)
// TBA - to send to RADIUS // TBA - to send to RADIUS
break; break;
case 8: // vendor name case 8: // vendor name
memset(tunnel[t].vendor, 0, 128); memset(tunnel[t].vendor, 0, sizeof(tunnel[t].vendor));
memcpy(tunnel[t].vendor, b, (n >= 127) ? 127 : n); 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); log(4, ntohl(addr->sin_addr.s_addr), s, t, " Vendor name = \"%s\"\n", tunnel[t].vendor);
break; break;
case 9: // assigned tunnel case 9: // assigned tunnel
@ -1819,7 +1823,7 @@ void processudp(u8 * buf, int len, struct sockaddr_in *addr)
if (!(r = radiusnew(s))) if (!(r = radiusnew(s)))
{ {
log(1, ntohl(addr->sin_addr.s_addr), s, t, "No free RADIUS sessions for ICRQ\n"); 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; return;
} }
@ -2044,7 +2048,7 @@ int regular_cleanups(void)
} else } else
radius[r].retry = backoff(radius[r].try+1); // Is this really needed? --mo 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 // check for expired tunnels
if (tunnel[t].die && tunnel[t].die <= TIME) if (tunnel[t].die && tunnel[t].die <= TIME)
@ -2220,8 +2224,8 @@ void mainloop(void)
int cn, i; int cn, i;
u8 buf[65536]; u8 buf[65536];
struct timeval to; struct timeval to;
time_t next_cluster_ping = 0; // default 1 second pings. clockt next_cluster_ping = 0; // send initial ping immediately
clockt next_clean = time_now + config->cleanup_interval; 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", log(4, 0, 0, 0, "Beginning of main loop. udpfd=%d, tapfd=%d, cluster_sockfd=%d, controlfd=%d\n",
udpfd, tapfd, cluster_sockfd, controlfd); udpfd, tapfd, cluster_sockfd, controlfd);
@ -2355,16 +2359,17 @@ void mainloop(void)
} }
// Runs on every machine (master and slaves). // 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.. // Check to see which of the cluster is still alive..
next_cluster_ping = time_now + 1;
cluster_send_ping(basetime); cluster_send_ping(basetime);
cluster_check_master(); cluster_check_master();
cluster_heartbeat(); // Only does anything if we're a master.
cluster_heartbeat(config->cluster_highest_sessionid, sessionfree, config->cluster_highest_tunnelid); // Only does anything if we're a master.
master_update_counts(); // If we're a slave, send our byte counters to our 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.. // Run token bucket filtering queue..
@ -2401,11 +2406,8 @@ void mainloop(void)
} }
// Are we the master and shutting down?? // Are we the master and shutting down??
if (config->cluster_iam_master) { if (config->cluster_iam_master)
cluster_heartbeat(); // Flush any queued changes..
cluster_heartbeat(config->cluster_highest_sessionid, sessionfree,
config->cluster_highest_tunnelid); // Flush any queued changes..
}
// Ok. Notify everyone we're shutting down. If we're // Ok. Notify everyone we're shutting down. If we're
// the master, this will force an election. // the master, this will force an election.
@ -2464,14 +2466,14 @@ void initdata(void)
ip_address_pool = mmap(NULL, sizeof(ippoolt) * MAXIPPOOL, PROT_READ | PROT_WRITE, MAP_SHARED | MAP_ANONYMOUS, 0, 0); ip_address_pool = mmap(NULL, sizeof(ippoolt) * MAXIPPOOL, PROT_READ | PROT_WRITE, MAP_SHARED | MAP_ANONYMOUS, 0, 0);
if (ip_address_pool == MAP_FAILED) 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); exit(1);
} }
#ifdef RINGBUFFER #ifdef RINGBUFFER
ringbuffer = mmap(NULL, sizeof(struct Tringbuffer), PROT_READ | PROT_WRITE, MAP_SHARED | MAP_ANONYMOUS, 0, 0); ringbuffer = mmap(NULL, sizeof(struct Tringbuffer), PROT_READ | PROT_WRITE, MAP_SHARED | MAP_ANONYMOUS, 0, 0);
if (ringbuffer == MAP_FAILED) 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); exit(1);
} }
memset(ringbuffer, 0, sizeof(struct Tringbuffer)); memset(ringbuffer, 0, sizeof(struct Tringbuffer));
@ -2512,8 +2514,10 @@ void initdata(void)
if (!*hostname) if (!*hostname)
{ {
char *p;
// Grab my hostname unless it's been specified // Grab my hostname unless it's been specified
gethostname(hostname, sizeof(hostname)); gethostname(hostname, sizeof(hostname));
if ((p = strchr(hostname, '.'))) *p = 0;
} }
_statistics->start_time = _statistics->last_reset = time(NULL); _statistics->start_time = _statistics->last_reset = time(NULL);
@ -2539,7 +2543,7 @@ int assign_ip_address(sessionidt s)
{ {
u32 i; u32 i;
int best = -1; int best = -1;
clockt best_time = time_now; time_t best_time = time_now;
char *u = session[s].user; char *u = session[s].user;
char reuse = 0; char reuse = 0;
@ -2881,7 +2885,7 @@ int main(int argc, char *argv[])
config->debug++; config->debug++;
break; break;
case 'h': case 'h':
strncpy(hostname, optarg, 999); snprintf(hostname, sizeof(hostname), "%s", optarg);
break; break;
case '?': case '?':
default: default:
@ -2907,7 +2911,7 @@ int main(int argc, char *argv[])
initplugins(); initplugins();
initdata(); initdata();
init_tbf(); init_tbf();
init_cli(); init_cli(hostname);
read_config_file(); read_config_file();
log(0, 0, 0, 0, "L2TPNS version " VERSION "\n"); log(0, 0, 0, 0, "L2TPNS version " VERSION "\n");
@ -3291,6 +3295,8 @@ static int facility_value(char *name)
void update_config() void update_config()
{ {
int i; int i;
static int timeout = 0;
static int interval = 0;
// Update logging // Update logging
closelog(); closelog();
@ -3373,6 +3379,26 @@ void update_config()
if (!config->cluster_hb_timeout) if (!config->cluster_hb_timeout)
config->cluster_hb_timeout = HB_TIMEOUT; // 10 missed heartbeat triggers an election. 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; config->reload_config = 0;
} }
@ -3807,7 +3833,7 @@ void become_master(void)
int s; int s;
run_plugins(PLUGIN_BECOME_MASTER, NULL); 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. if (!session[s].tunnel) // Not an in-use session.
continue; continue;
@ -3829,7 +3855,7 @@ int cmd_show_hist_idle(struct cli_def *cli, char *command, char **argv, int argc
time(&time_now); time(&time_now);
for (i = 0; i < 64;++i) buckets[i] = 0; 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; int idle;
if (!session[s].tunnel) if (!session[s].tunnel)
continue; continue;
@ -3865,7 +3891,7 @@ int cmd_show_hist_open(struct cli_def *cli, char *command, char **argv, int argc
time(&time_now); time(&time_now);
for (i = 0; i < 64;++i) buckets[i] = 0; 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; int open = 0, d;
if (!session[s].tunnel) if (!session[s].tunnel)
continue; continue;

5
l2tpns.h
View file

@ -1,5 +1,5 @@
// L2TPNS Global Stuff // 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__ #ifndef __L2TPNS_H__
#define __L2TPNS_H__ #define __L2TPNS_H__
@ -60,7 +60,6 @@
#endif #endif
#define TAPDEVICE "/dev/net/tun" #define TAPDEVICE "/dev/net/tun"
#define UDP 17
#define STATEFILE DATADIR "/state.dump" // State dump file #define STATEFILE DATADIR "/state.dump" // State dump file
#define CONFIGFILE FLASHDIR "/startup-config" // Configuration file #define CONFIGFILE FLASHDIR "/startup-config" // Configuration file
#define CLIUSERS FLASHDIR "/users" // CLI Users file #define CLIUSERS FLASHDIR "/users" // CLI Users file
@ -525,7 +524,7 @@ int sessionsetup(tunnelidt t, sessionidt s);
int cluster_send_session(int s); int cluster_send_session(int s);
int cluster_send_tunnel(int t); int cluster_send_tunnel(int t);
int cluster_send_goodbye(); int cluster_send_goodbye();
void init_cli(); void init_cli(char *hostname);
void cli_do_file(FILE *fh); void cli_do_file(FILE *fh);
void cli_do(int sockfd); void cli_do(int sockfd);
int cli_arg_help(struct cli_def *cli, int cr_ok, char *entry, ...); int cli_arg_help(struct cli_def *cli, int cr_ok, char *entry, ...);

25
radius.c
View file

@ -1,6 +1,6 @@
// L2TPNS Radius Stuff // 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 <time.h>
#include <stdio.h> #include <stdio.h>
@ -46,7 +46,7 @@ void initrad(void)
for (i = 0; i < config->num_radfds; i++) for (i = 0; i < config->num_radfds; i++)
{ {
int flags; 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); flags = fcntl(radfds[i], F_GETFL, 0);
fcntl(radfds[i], F_SETFL, flags | O_NONBLOCK); fcntl(radfds[i], F_SETFL, flags | O_NONBLOCK);
} }
@ -59,7 +59,7 @@ void radiusclear(u16 r, sessionidt s)
} }
static u16 new_radius() static u16 get_free_radius()
{ {
int count; int count;
static u32 next_radius_id = 0; static u32 next_radius_id = 0;
@ -82,13 +82,22 @@ static u16 new_radius()
u16 radiusnew(sessionidt s) u16 radiusnew(sessionidt s)
{ {
u16 r; u16 r = session[s].radius;
if (!(r = new_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"); log(1, 0, s, session[s].tunnel, "No free RADIUS sessions\n");
STAT(radius_overflow); STAT(radius_overflow);
return 0; return 0;
}; };
memset(&radius[r], 0, sizeof(radius[r])); memset(&radius[r], 0, sizeof(radius[r]));
session[s].radius = r; session[s].radius = r;
radius[r].session = s; radius[r].session = s;
@ -393,20 +402,14 @@ void processrad(u8 *buf, int len, char socket_index)
if (memcmp(hash, buf + 4, 16)) if (memcmp(hash, buf + 4, 16))
{ {
log(0, 0, s, session[s].tunnel, " Incorrect auth on RADIUS response!! (wrong secret in radius config?)\n"); 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. return; // Do nothing. On timeout, it will try the next radius server.
} }
if ((radius[r].state == RADIUSAUTH && *buf != 2 && *buf != 3) || if ((radius[r].state == RADIUSAUTH && *buf != 2 && *buf != 3) ||
((radius[r].state == RADIUSSTART || radius[r].state == RADIUSSTOP) && *buf != 5)) ((radius[r].state == RADIUSSTART || radius[r].state == RADIUSSTOP) && *buf != 5))
{ {
log(1, 0, s, session[s].tunnel, " Unexpected RADIUS response %d\n", *buf); 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 return; // We got something we didn't expect. Let the timeouts take
// care off finishing the radius session if that's really correct. // 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) if (radius[r].state == RADIUSAUTH)
{ {