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pass cluster master state to plugin_control functions
[l2tpns.git]
/
cluster.c
diff --git
a/cluster.c
b/cluster.c
index
8a46b04
..
f15127d
100644
(file)
--- a/
cluster.c
+++ b/
cluster.c
@@
-1,6
+1,6
@@
// L2TPNS Clustering Stuff
// L2TPNS Clustering Stuff
-char const *cvs_id_cluster = "$Id: cluster.c,v 1.1
4 2004-10-30 07:35:00
bodea Exp $";
+char const *cvs_id_cluster = "$Id: cluster.c,v 1.1
8 2004-11-16 07:54:32
bodea Exp $";
#include <stdio.h>
#include <sys/file.h>
#include <stdio.h>
#include <sys/file.h>
@@
-67,8
+67,8
@@
static struct {
} peers[CLUSTER_MAX_SIZE]; // List of all the peers we've heard from.
static int num_peers; // Number of peers in list.
} peers[CLUSTER_MAX_SIZE]; // List of all the peers we've heard from.
static int num_peers; // Number of peers in list.
-int rle_decompress(u8 ** src_p, int ssize, u8 *dst, int dsize);
-int rle_compress(u8 ** src_p, int ssize, u8 *dst, int dsize);
+
static
int rle_decompress(u8 ** src_p, int ssize, u8 *dst, int dsize);
+
static
int rle_compress(u8 ** src_p, int ssize, u8 *dst, int dsize);
//
// Create a listening socket
//
// Create a listening socket
@@
-101,14
+101,14
@@
int cluster_init()
if (bind(cluster_sockfd, (void *) &addr, sizeof(addr)) < 0)
{
if (bind(cluster_sockfd, (void *) &addr, sizeof(addr)) < 0)
{
-
log
(0, 0, 0, 0, "Failed to bind cluster socket: %s\n", strerror(errno));
+
LOG
(0, 0, 0, 0, "Failed to bind cluster socket: %s\n", strerror(errno));
return -1;
}
strcpy(ifr.ifr_name, config->cluster_interface);
if (ioctl(cluster_sockfd, SIOCGIFADDR, &ifr) < 0)
{
return -1;
}
strcpy(ifr.ifr_name, config->cluster_interface);
if (ioctl(cluster_sockfd, SIOCGIFADDR, &ifr) < 0)
{
-
log
(0, 0, 0, 0, "Failed to get interface address for (%s): %s\n", config->cluster_interface, strerror(errno));
+
LOG
(0, 0, 0, 0, "Failed to get interface address for (%s): %s\n", config->cluster_interface, strerror(errno));
return -1;
}
return -1;
}
@@
-125,13
+125,13
@@
int cluster_init()
if (setsockopt(cluster_sockfd, IPPROTO_IP, IP_ADD_MEMBERSHIP, &mreq, sizeof(mreq)) < 0)
{
if (setsockopt(cluster_sockfd, IPPROTO_IP, IP_ADD_MEMBERSHIP, &mreq, sizeof(mreq)) < 0)
{
-
log
(0, 0, 0, 0, "Failed to setsockopt (join mcast group): %s\n", strerror(errno));
+
LOG
(0, 0, 0, 0, "Failed to setsockopt (join mcast group): %s\n", strerror(errno));
return -1;
}
if (setsockopt (cluster_sockfd, IPPROTO_IP, IP_MULTICAST_IF, &interface_addr, sizeof(interface_addr)) < 0)
{
return -1;
}
if (setsockopt (cluster_sockfd, IPPROTO_IP, IP_MULTICAST_IF, &interface_addr, sizeof(interface_addr)) < 0)
{
-
log
(0, 0, 0, 0, "Failed to setsockopt (set mcast interface): %s\n", strerror(errno));
+
LOG
(0, 0, 0, 0, "Failed to setsockopt (set mcast interface): %s\n", strerror(errno));
return -1;
}
return -1;
}
@@
-147,7
+147,7
@@
int cluster_init()
// address ).
//
// address ).
//
-int cluster_send_data(void *data, int datalen)
+
static
int cluster_send_data(void *data, int datalen)
{
struct sockaddr_in addr = {0};
{
struct sockaddr_in addr = {0};
@@
-158,11
+158,11
@@
int cluster_send_data(void *data, int datalen)
addr.sin_port = htons(CLUSTERPORT);
addr.sin_family = AF_INET;
addr.sin_port = htons(CLUSTERPORT);
addr.sin_family = AF_INET;
-
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)
{
-
log
(0, 0, 0, 0, "sendto: %s\n", strerror(errno));
+
LOG
(0, 0, 0, 0, "sendto: %s\n", strerror(errno));
return -1;
}
return -1;
}
@@
-188,7
+188,19
@@
static void add_type(char ** p, int type, int more, char * data, int size)
}
}
}
}
-void cluster_uptodate(void)
+// advertise our presence via BGP or gratuitous ARP
+static void advertise(void)
+{
+#ifdef BGP
+ if (bgp_configured)
+ bgp_enable_routing(1);
+ else
+#endif /* BGP */
+ if (config->send_garp)
+ send_garp(config->bind_address); // Start taking traffic.
+}
+
+static void cluster_uptodate(void)
{
if (config->cluster_iam_uptodate)
return;
{
if (config->cluster_iam_uptodate)
return;
@@
-198,22
+210,15
@@
void cluster_uptodate(void)
config->cluster_iam_uptodate = 1;
config->cluster_iam_uptodate = 1;
- log(0,0,0,0, "Now uptodate with master.\n");
-
-#ifdef BGP
- if (bgp_configured)
- bgp_enable_routing(1);
- else
-#endif /* BGP */
- if (config->send_garp)
- send_garp(config->bind_address); // Start taking traffic.
+ LOG(0,0,0,0, "Now uptodate with master.\n");
+ advertise();
}
//
// Send a unicast UDP packet to a peer with 'data' as the
// contents.
//
}
//
// Send a unicast UDP packet to a peer with 'data' as the
// contents.
//
-int peer_send_data(u32 peer, char * data, int size)
+
static
int peer_send_data(u32 peer, char * data, int size)
{
struct sockaddr_in addr = {0};
{
struct sockaddr_in addr = {0};
@@
-227,11
+232,11
@@
int peer_send_data(u32 peer, char * data, int size)
addr.sin_port = htons(CLUSTERPORT);
addr.sin_family = AF_INET;
addr.sin_port = htons(CLUSTERPORT);
addr.sin_family = AF_INET;
-
log_hex
(5, "Peer send", data, size);
+
LOG_HEX
(5, "Peer send", data, size);
if (sendto(cluster_sockfd, data, size, MSG_NOSIGNAL, (void *) &addr, sizeof(addr)) < 0)
{
if (sendto(cluster_sockfd, data, size, MSG_NOSIGNAL, (void *) &addr, sizeof(addr)) < 0)
{
-
log
(0, 0, 0, 0, "sendto: %s\n", strerror(errno));
+
LOG
(0, 0, 0, 0, "sendto: %s\n", strerror(errno));
return -1;
}
return -1;
}
@@
-241,12
+246,12
@@
int peer_send_data(u32 peer, char * data, int size)
//
// Send a structured message to a peer with a single element of type 'type'.
//
//
// Send a structured message to a peer with a single element of type 'type'.
//
-int peer_send_message(u32 peer, int type, int more, char * data, int size)
+
static
int peer_send_message(u32 peer, int type, int more, char * data, int size)
{
char buf[65536]; // Vast overkill.
char * p = buf;
{
char buf[65536]; // Vast overkill.
char * p = buf;
-
log
(4,0,0,0, "Sending message to peer (type %d, more %d, size %d)\n", type, more, size);
+
LOG
(4,0,0,0, "Sending message to peer (type %d, more %d, size %d)\n", type, more, size);
add_type(&p, type, more, data, size);
return peer_send_data(peer, buf, (p-buf) );
add_type(&p, type, more, data, size);
return peer_send_data(peer, buf, (p-buf) );
@@
-266,7
+271,7
@@
int master_forward_packet(char *data, int size, u32 addr, int port)
if (!config->cluster_master_address) // No election has been held yet. Just skip it.
return -1;
if (!config->cluster_master_address) // No election has been held yet. Just skip it.
return -1;
-
log
(4,0,0,0, "Forwarding packet from %s to master (size %d)\n", inet_toa(addr), size);
+
LOG
(4,0,0,0, "Forwarding packet from %s to master (size %d)\n", inet_toa(addr), size);
STAT(c_forwarded);
add_type(&p, C_FORWARD, addr, (char*) &port, sizeof(port) );
STAT(c_forwarded);
add_type(&p, C_FORWARD, addr, (char*) &port, sizeof(port) );
@@
-292,7
+297,7
@@
int master_throttle_packet(int tbfid, char *data, int size)
if (!config->cluster_master_address) // No election has been held yet. Just skip it.
return -1;
if (!config->cluster_master_address) // No election has been held yet. Just skip it.
return -1;
-
log
(4,0,0,0, "Throttling packet master (size %d, tbfid %d)\n", size, tbfid);
+
LOG
(4,0,0,0, "Throttling packet master (size %d, tbfid %d)\n", size, tbfid);
add_type(&p, C_THROTTLE, tbfid, data, size);
add_type(&p, C_THROTTLE, tbfid, data, size);
@@
-317,7
+322,7
@@
int master_garden_packet(sessionidt s, char *data, int size)
if (!config->cluster_master_address) // No election has been held yet. Just skip it.
return -1;
if (!config->cluster_master_address) // No election has been held yet. Just skip it.
return -1;
-
log
(4,0,0,0, "Walled garden packet to master (size %d)\n", size);
+
LOG
(4,0,0,0, "Walled garden packet to master (size %d)\n", size);
add_type(&p, C_GARDEN, s, data, size);
add_type(&p, C_GARDEN, s, data, size);
@@
-335,7
+340,7
@@
static void send_heartbeat(int seq, char * data, int size)
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");
kill(0, SIGTERM);
exit(1);
}
kill(0, SIGTERM);
exit(1);
}
@@
-358,7
+363,7
@@
void cluster_send_ping(time_t basetime)
if (config->cluster_iam_master && basetime) // We're heartbeating so no need to ping.
return;
if (config->cluster_iam_master && basetime) // We're heartbeating so no need to ping.
return;
-
log
(5,0,0,0, "Sending cluster ping...\n");
+
LOG
(5,0,0,0, "Sending cluster ping...\n");
x.ver = 1;
x.addr = config->bind_address;
x.ver = 1;
x.addr = config->bind_address;
@@
-417,7
+422,7
@@
void master_update_counts(void)
// Forward the data to the master.
// Forward the data to the master.
-
log
(4,0,0,0, "Sending byte counters to master (%d elements)\n", c);
+
LOG
(4,0,0,0, "Sending byte counters to master (%d elements)\n", c);
peer_send_message(config->cluster_master_address, C_BYTES, c, (char*) &b, sizeof(b[0]) * c);
return;
}
peer_send_message(config->cluster_master_address, C_BYTES, c, (char*) &b, sizeof(b[0]) * c);
return;
}
@@
-456,11
+461,9
@@
void cluster_check_slaves(void)
}
#ifdef BGP
}
#ifdef BGP
- // master lost all slaves, need to handle traffic ourself
- if (bgp_configured && had_peers && !have_peers)
- bgp_enable_routing(1);
- else if (bgp_configured && !had_peers && have_peers)
- bgp_enable_routing(0);
+ // in a cluster, withdraw/add routes when we get a peer/lose all peers
+ if (bgp_configured && have_peers != had_peers)
+ bgp_enable_routing(!have_peers);
#endif /* BGP */
}
#endif /* BGP */
}
@@
-488,7
+491,7
@@
void cluster_check_master(void)
if (!probed && config->cluster_master_address)
{
probed = 1;
if (!probed && config->cluster_master_address)
{
probed = 1;
-
log
(1, 0, 0, 0, "Heartbeat from master %.1fs late, probing...\n",
+
LOG
(1, 0, 0, 0, "Heartbeat from master %.1fs late, probing...\n",
0.1 * (TIME - (config->cluster_last_hb + config->cluster_hb_interval)));
peer_send_message(config->cluster_master_address,
0.1 * (TIME - (config->cluster_last_hb + config->cluster_hb_interval)));
peer_send_message(config->cluster_master_address,
@@
-503,7
+506,7
@@
void cluster_check_master(void)
config->cluster_last_hb = TIME + 1; // Just the one election thanks.
config->cluster_last_hb = TIME + 1; // Just the one election thanks.
-
log
(0,0,0,0, "Master timed out! Holding election...\n");
+
LOG
(0,0,0,0, "Master timed out! Holding election...\n");
for (i = 0; i < num_peers; i++)
{
for (i = 0; i < num_peers; i++)
{
@@
-514,13
+517,13
@@
void cluster_check_master(void)
continue; // Shutdown peer! Skip them.
if (peers[i].basetime < basetime) {
continue; // Shutdown peer! Skip them.
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.
}
if (peers[i].basetime == basetime &&
peers[i].peer > my_address) {
return; // They'll win the election. Get out of here.
}
if (peers[i].basetime == basetime &&
peers[i].peer > my_address) {
-
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. Wait for them to come up.
}
}
return; // They'll win the election. Wait for them to come up.
}
}
@@
-532,7
+535,7
@@
void cluster_check_master(void)
config->cluster_iam_master = 1;
config->cluster_master_address = 0;
config->cluster_iam_master = 1;
config->cluster_master_address = 0;
-
log
(0,0,0,0, "I am declaring myself the master!\n");
+
LOG
(0,0,0,0, "I am declaring myself the master!\n");
if (config->cluster_seq_number == -1)
config->cluster_seq_number = 0;
if (config->cluster_seq_number == -1)
config->cluster_seq_number = 0;
@@
-589,7
+592,7
@@
void cluster_check_master(void)
session[i].tbf_in = session[i].tbf_out = 0; // Remove stale pointers from old master.
session[i].tbf_in = session[i].tbf_out = 0; // Remove stale pointers from old master.
- throttle_session(i, session[i].throttle);
+ throttle_session(i, session[i].throttle
_in, session[i].throttle_out
);
if (session[i].tunnel != T_FREE && i > config->cluster_highest_sessionid)
config->cluster_highest_sessionid = i;
if (session[i].tunnel != T_FREE && i > config->cluster_highest_sessionid)
config->cluster_highest_sessionid = i;
@@
-604,12
+607,15
@@
void cluster_check_master(void)
// If we're not the very first master, this is a big issue!
if(count>0)
// If we're not the very first master, this is a big issue!
if(count>0)
-
log
(0,0,0,0, "Warning: Fixed %d uninitialized sessions in becoming master!\n", count);
+
LOG
(0,0,0,0, "Warning: Fixed %d uninitialized sessions in becoming master!\n", count);
config->cluster_undefined_sessions = 0;
config->cluster_undefined_tunnels = 0;
config->cluster_iam_uptodate = 1; // assume all peers are up-to-date
config->cluster_undefined_sessions = 0;
config->cluster_undefined_tunnels = 0;
config->cluster_iam_uptodate = 1; // assume all peers are up-to-date
+ if (!num_peers) // lone master
+ advertise();
+
// FIXME. We need to fix up the tunnel control message
// queue here! There's a number of other variables we
// should also update.
// FIXME. We need to fix up the tunnel control message
// queue here! There's a number of other variables we
// should also update.
@@
-664,7
+670,7
@@
static void cluster_check_sessions(int highsession, int freesession_ptr, int hig
if (config->cluster_undefined_sessions || config->cluster_undefined_tunnels) {
if (config->cluster_undefined_sessions || config->cluster_undefined_tunnels) {
-
log
(2,0,0,0, "Cleared undefined sessions/tunnels. %d sess (high %d), %d tunn (high %d)\n",
+
LOG
(2,0,0,0, "Cleared undefined sessions/tunnels. %d sess (high %d), %d tunn (high %d)\n",
config->cluster_undefined_sessions, highsession, config->cluster_undefined_tunnels, hightunnel);
return;
}
config->cluster_undefined_sessions, highsession, config->cluster_undefined_tunnels, hightunnel);
return;
}
@@
-675,7
+681,7
@@
static void cluster_check_sessions(int highsession, int freesession_ptr, int hig
cluster_uptodate();
}
cluster_uptodate();
}
-int hb_add_type(char **p, int type, int id)
+
static
int hb_add_type(char **p, int type, int id)
{
switch (type) {
case C_CSESSION: { // Compressed C_SESSION.
{
switch (type) {
case C_CSESSION: { // Compressed C_SESSION.
@@
-718,7
+724,7
@@
int hb_add_type(char **p, int type, int id)
(char*) &tunnel[id], sizeof(tunnelt));
break;
default:
(char*) &tunnel[id], sizeof(tunnelt));
break;
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);
exit(1);
}
kill(0, SIGTERM);
exit(1);
}
@@
-761,7
+767,7
@@
void cluster_heartbeat()
}
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);
exit(1);
}
kill(0, SIGTERM);
exit(1);
}
@@
-806,12
+812,12
@@
void cluster_heartbeat()
//
// Did we do something wrong?
if (p > (buff + sizeof(buff))) { // Did we somehow manage to overun the buffer?
//
// Did we do something wrong?
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);
exit(1);
}
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",
h.seq, config->cluster_num_changes, count, tcount, config->cluster_highest_sessionid,
config->cluster_highest_tunnelid, (p-buff));
h.seq, config->cluster_num_changes, count, tcount, config->cluster_highest_sessionid,
config->cluster_highest_tunnelid, (p-buff));
@@
-825,7
+831,7
@@
void cluster_heartbeat()
//
// A structure of type 'type' has changed; Add it to the queue to send.
//
//
// A structure of type 'type' has changed; Add it to the queue to send.
//
-int type_changed(int type, int id)
+
static
int type_changed(int type, int id)
{
int i;
{
int i;
@@
-849,7
+855,7
@@
int type_changed(int type, int id)
int cluster_send_session(int sid)
{
if (!config->cluster_iam_master) {
int cluster_send_session(int sid)
{
if (!config->cluster_iam_master) {
-
log
(0,0,sid,0, "I'm not a master, but I just tried to change a session!\n");
+
LOG
(0,0,sid,0, "I'm not a master, but I just tried to change a session!\n");
return -1;
}
return -1;
}
@@
-860,7
+866,7
@@
int cluster_send_session(int sid)
int cluster_send_tunnel(int tid)
{
if (!config->cluster_iam_master) {
int cluster_send_tunnel(int tid)
{
if (!config->cluster_iam_master) {
-
log
(0,0,0,tid, "I'm not a master, but I just tried to change a tunnel!\n");
+
LOG
(0,0,0,tid, "I'm not a master, but I just tried to change a tunnel!\n");
return -1;
}
return -1;
}
@@
-873,19
+879,19
@@
int cluster_send_tunnel(int tid)
// missed a packet. We'll resend it every packet since
// the last one it's seen.
//
// missed a packet. We'll resend it every packet since
// the last one it's seen.
//
-int cluster_catchup_slave(int seq, u32 slave)
+
static
int cluster_catchup_slave(int seq, u32 slave)
{
int s;
int diff;
{
int s;
int diff;
-
log
(1,0,0,0, "Slave %s sent LASTSEEN with seq %d\n", inet_toa(slave), seq);
+
LOG
(1,0,0,0, "Slave %s sent LASTSEEN with seq %d\n", inet_toa(slave), seq);
diff = config->cluster_seq_number - seq; // How many packet do we need to send?
if (diff < 0)
diff += HB_MAX_SEQ;
if (diff >= HB_HISTORY_SIZE) { // Ouch. We don't have the packet to send it!
diff = config->cluster_seq_number - seq; // How many packet do we need to send?
if (diff < 0)
diff += HB_MAX_SEQ;
if (diff >= HB_HISTORY_SIZE) { // Ouch. We don't have the packet to send it!
-
log
(0,0,0,0, "A slaved asked for message %d when our seq number is %d. Killing it.\n",
+
LOG
(0,0,0,0, "A slaved asked for message %d when our seq number is %d. Killing it.\n",
seq, config->cluster_seq_number);
return peer_send_message(slave, C_KILL, seq, NULL, 0);// Kill the slave. Nothing else to do.
}
seq, config->cluster_seq_number);
return peer_send_message(slave, C_KILL, seq, NULL, 0);// Kill the slave. Nothing else to do.
}
@@
-894,7
+900,7
@@
int cluster_catchup_slave(int seq, u32 slave)
while (seq != config->cluster_seq_number) {
s = seq%HB_HISTORY_SIZE;
if (seq != past_hearts[s].seq) {
while (seq != config->cluster_seq_number) {
s = seq%HB_HISTORY_SIZE;
if (seq != past_hearts[s].seq) {
-
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);
return -1; // What to do here!?
}
inet_toa(slave), seq, past_hearts[s].seq, s, config->cluster_seq_number);
return -1; // What to do here!?
}
@@
-908,7
+914,7
@@
int cluster_catchup_slave(int seq, u32 slave)
// We've heard from another peer! Add it to the list
// that we select from at election time.
//
// We've heard from another peer! Add it to the list
// that we select from at election time.
//
-int cluster_add_peer(u32 peer, time_t basetime, pingt *pp, int size)
+
static
int cluster_add_peer(u32 peer, time_t basetime, pingt *pp, int size)
{
int i;
u32 clusterid;
{
int i;
u32 clusterid;
@@
-928,7
+934,7
@@
int cluster_add_peer(u32 peer, time_t basetime, pingt *pp, int size)
if (clusterid != config->bind_address)
{
// Is this for us?
if (clusterid != config->bind_address)
{
// Is this for us?
-
log
(4,0,0,0, "Skipping ping from %s (different cluster)\n", inet_toa(peer));
+
LOG
(4,0,0,0, "Skipping ping from %s (different cluster)\n", inet_toa(peer));
return 0;
}
return 0;
}
@@
-946,7
+952,7
@@
int cluster_add_peer(u32 peer, time_t basetime, pingt *pp, int size)
// Is this the master shutting down??
if (peer == config->cluster_master_address && !basetime) {
// Is this the master shutting down??
if (peer == config->cluster_master_address && !basetime) {
-
log
(3,0,0,0, "Master %s shutting down...\n", inet_toa(config->cluster_master_address));
+
LOG
(3,0,0,0, "Master %s shutting down...\n", inet_toa(config->cluster_master_address));
config->cluster_master_address = 0;
config->cluster_last_hb = 0; // Force an election.
cluster_check_master();
config->cluster_master_address = 0;
config->cluster_last_hb = 0; // Force an election.
cluster_check_master();
@@
-955,7
+961,7
@@
int cluster_add_peer(u32 peer, time_t basetime, pingt *pp, int size)
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));
// Not found. Is there a stale slot to re-use?
for (i = 0; i < num_peers ; ++i)
// Not found. Is there a stale slot to re-use?
for (i = 0; i < num_peers ; ++i)
@@
-970,7
+976,7
@@
int cluster_add_peer(u32 peer, time_t basetime, pingt *pp, int size)
if (i >= CLUSTER_MAX_SIZE)
{
// Too many peers!!
if (i >= CLUSTER_MAX_SIZE)
{
// Too many peers!!
-
log
(0,0,0,0, "Tried to add %s as a peer, but I already have %d of them!\n", inet_toa(peer), i);
+
LOG
(0,0,0,0, "Tried to add %s as a peer, but I already have %d of them!\n", inet_toa(peer), i);
return -1;
}
return -1;
}
@@
-981,7
+987,7
@@
int cluster_add_peer(u32 peer, time_t basetime, pingt *pp, int size)
if (i == num_peers)
++num_peers;
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);
+
LOG
(1,0,0,0, "Added %s as a new peer. Now %d peers\n", inet_toa(peer), num_peers);
}
return 1;
}
return 1;
@@
-992,20
+998,20
@@
int cluster_add_peer(u32 peer, time_t basetime, pingt *pp, int size)
// Note that we don't mark the session as dirty; We rely on
// the slow table walk to propogate this back out to the slaves.
//
// Note that we don't mark the session as dirty; We rely on
// the slow table walk to propogate this back out to the slaves.
//
-int cluster_handle_bytes(char * data, int size)
+
static
int cluster_handle_bytes(char * data, int size)
{
bytest * b;
b = (bytest*) data;
{
bytest * b;
b = (bytest*) data;
-
log
(3,0,0,0, "Got byte counter update (size %d)\n", size);
+
LOG
(3,0,0,0, "Got byte counter update (size %d)\n", size);
/* Loop around, adding the byte
counts to each of the sessions. */
while (size >= sizeof(*b) ) {
if (b->sid > MAXSESSION) {
/* Loop around, adding the byte
counts to each of the sessions. */
while (size >= sizeof(*b) ) {
if (b->sid > MAXSESSION) {
-
log
(0,0,0,0, "Got C_BYTES with session #%d!\n", b->sid);
+
LOG
(0,0,0,0, "Got C_BYTES with session #%d!\n", b->sid);
return -1; /* Abort processing */
}
return -1; /* Abort processing */
}
@@
-1021,7
+1027,7
@@
int cluster_handle_bytes(char * data, int size)
}
if (size != 0)
}
if (size != 0)
-
log
(0,0,0,0, "Got C_BYTES with %d bytes of trailing junk!\n", size);
+
LOG
(0,0,0,0, "Got C_BYTES with %d bytes of trailing junk!\n", size);
return size;
}
return size;
}
@@
-1032,13
+1038,13
@@
int cluster_handle_bytes(char * data, int size)
static int cluster_recv_session(int more , u8 * p)
{
if (more >= MAXSESSION) {
static int cluster_recv_session(int more , u8 * p)
{
if (more >= MAXSESSION) {
-
log
(0,0,0,0, "DANGER: Received a heartbeat session id > MAXSESSION!\n");
+
LOG
(0,0,0,0, "DANGER: Received a heartbeat session id > MAXSESSION!\n");
return -1;
}
if (session[more].tunnel == T_UNDEF) {
if (config->cluster_iam_uptodate) { // Sanity.
return -1;
}
if (session[more].tunnel == T_UNDEF) {
if (config->cluster_iam_uptodate) { // Sanity.
-
log
(0,0,0,0, "I thought I was uptodate but I just found an undefined session!\n");
+
LOG
(0,0,0,0, "I thought I was uptodate but I just found an undefined session!\n");
} else {
--config->cluster_undefined_sessions;
}
} else {
--config->cluster_undefined_sessions;
}
@@
-1046,7
+1052,7
@@
static int cluster_recv_session(int more , u8 * p)
load_session(more, (sessiont*) p); // Copy session into session table..
load_session(more, (sessiont*) p); // Copy session into session table..
-
log
(5,0,more,0, "Received session update (%d undef)\n", config->cluster_undefined_sessions);
+
LOG
(5,0,more,0, "Received session update (%d undef)\n", config->cluster_undefined_sessions);
if (!config->cluster_iam_uptodate)
cluster_uptodate(); // Check to see if we're up to date.
if (!config->cluster_iam_uptodate)
cluster_uptodate(); // Check to see if we're up to date.
@@
-1057,13
+1063,13
@@
static int cluster_recv_session(int more , u8 * p)
static int cluster_recv_tunnel(int more, u8 *p)
{
if (more >= MAXTUNNEL) {
static int cluster_recv_tunnel(int more, u8 *p)
{
if (more >= MAXTUNNEL) {
-
log
(0,0,0,0, "DANGER: Received a tunnel session id > MAXTUNNEL!\n");
+
LOG
(0,0,0,0, "DANGER: Received a tunnel session id > MAXTUNNEL!\n");
return -1;
}
if (tunnel[more].state == TUNNELUNDEF) {
if (config->cluster_iam_uptodate) { // Sanity.
return -1;
}
if (tunnel[more].state == TUNNELUNDEF) {
if (config->cluster_iam_uptodate) { // Sanity.
-
log
(0,0,0,0, "I thought I was uptodate but I just found an undefined tunnel!\n");
+
LOG
(0,0,0,0, "I thought I was uptodate but I just found an undefined tunnel!\n");
} else {
--config->cluster_undefined_tunnels;
}
} else {
--config->cluster_undefined_tunnels;
}
@@
-1078,7
+1084,7
@@
static int cluster_recv_tunnel(int more, u8 *p)
tunnel[more].controls = tunnel[more].controle = NULL;
tunnel[more].controlc = 0;
tunnel[more].controls = tunnel[more].controle = NULL;
tunnel[more].controlc = 0;
-
log
(5,0,0,more, "Received tunnel update\n");
+
LOG
(5,0,0,more, "Received tunnel update\n");
if (!config->cluster_iam_uptodate)
cluster_uptodate(); // Check to see if we're up to date.
if (!config->cluster_iam_uptodate)
cluster_uptodate(); // Check to see if we're up to date.
@@
-1102,7
+1108,7
@@
static int cluster_process_heartbeat(u8 * data, int size, int more, u8 * p, u32
// we handle version 2+
if (more < 2 || more > HB_VERSION) {
// 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);
+
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??
}
@@
-1120,18
+1126,18
@@
static int cluster_process_heartbeat(u8 * data, int size, int more, u8 * p, u32
if (config->cluster_iam_master) { // Sanity...
// Note that this MUST match the election process above!
if (config->cluster_iam_master) { // Sanity...
// Note that this MUST match the election process above!
-
log
(0,0,0,0, "I just got a packet claiming to be from a master but _I_ am the master!\n");
+
LOG
(0,0,0,0, "I just got a packet claiming to be from a master but _I_ am the master!\n");
if (!h->basetime) {
if (!h->basetime) {
-
log
(0,0,0,0, "Heartbeat from addr %s with zero basetime!\n", inet_toa(addr) );
+
LOG
(0,0,0,0, "Heartbeat from addr %s with zero basetime!\n", inet_toa(addr) );
return -1; // Skip it.
}
if (basetime > h->basetime) {
return -1; // Skip it.
}
if (basetime > h->basetime) {
-
log
(0,0,0,0, "They're (%s) an older master than me so I'm gone!\n", inet_toa(addr));
+
LOG
(0,0,0,0, "They're (%s) an older master than me so I'm gone!\n", inet_toa(addr));
kill(0, SIGTERM);
exit(1);
}
if (basetime == h->basetime && my_address < addr) { // Tie breaker.
kill(0, SIGTERM);
exit(1);
}
if (basetime == h->basetime && my_address < addr) { // Tie breaker.
-
log
(0,0,0,0, "They're a higher IP address than me, so I'm gone!\n");
+
LOG
(0,0,0,0, "They're a higher IP address than me, so I'm gone!\n");
kill(0, SIGTERM);
exit(1);
}
kill(0, SIGTERM);
exit(1);
}
@@
-1144,7
+1150,7
@@
static int cluster_process_heartbeat(u8 * data, int size, int more, u8 * p, u32
config->cluster_last_hb = TIME; // Reset to ensure that we don't become master!!
if (config->cluster_seq_number != h->seq) { // Out of sequence heartbeat!
config->cluster_last_hb = TIME; // Reset to ensure that we don't become master!!
if (config->cluster_seq_number != h->seq) { // Out of sequence heartbeat!
-
log
(1,0,0,0, "HB: Got seq# %d but was expecting %d. asking for resend.\n", h->seq, config->cluster_seq_number);
+
LOG
(1,0,0,0, "HB: Got seq# %d but was expecting %d. asking for resend.\n", h->seq, config->cluster_seq_number);
peer_send_message(addr, C_LASTSEEN, config->cluster_seq_number, NULL, 0);
peer_send_message(addr, C_LASTSEEN, config->cluster_seq_number, NULL, 0);
@@
-1171,7
+1177,7
@@
static int cluster_process_heartbeat(u8 * data, int size, int more, u8 * p, u32
{
if (h->interval != config->cluster_hb_interval)
{
{
if (h->interval != config->cluster_hb_interval)
{
-
log
(2, 0, 0, 0, "Master set ping/heartbeat interval to %u (was %u)\n",
+
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;
h->interval, config->cluster_hb_interval);
config->cluster_hb_interval = h->interval;
@@
-1179,7
+1185,7
@@
static int cluster_process_heartbeat(u8 * data, int size, int more, u8 * p, u32
if (h->timeout != config->cluster_hb_timeout)
{
if (h->timeout != config->cluster_hb_timeout)
{
-
log
(2, 0, 0, 0, "Master set heartbeat timeout to %u (was %u)\n",
+
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;
h->timeout, config->cluster_hb_timeout);
config->cluster_hb_timeout = h->timeout;
@@
-1207,7
+1213,7
@@
static int cluster_process_heartbeat(u8 * data, int size, int more, u8 * p, u32
s -= (p - orig_p);
if (size != sizeof(sessiont) ) { // Ouch! Very very bad!
s -= (p - orig_p);
if (size != sizeof(sessiont) ) { // Ouch! Very very bad!
-
log
(0,0,0,0, "DANGER: Received a CSESSION that didn't decompress correctly!\n");
+
LOG
(0,0,0,0, "DANGER: Received a CSESSION that didn't decompress correctly!\n");
// Now what? Should exit! No-longer up to date!
break;
}
// Now what? Should exit! No-longer up to date!
break;
}
@@
-1234,7
+1240,7
@@
static int cluster_process_heartbeat(u8 * data, int size, int more, u8 * p, u32
s -= (p - orig_p);
if (size != sizeof(tunnelt) ) { // Ouch! Very very bad!
s -= (p - orig_p);
if (size != sizeof(tunnelt) ) { // Ouch! Very very bad!
-
log
(0,0,0,0, "DANGER: Received a CSESSION that didn't decompress correctly!\n");
+
LOG
(0,0,0,0, "DANGER: Received a CSESSION that didn't decompress correctly!\n");
// Now what? Should exit! No-longer up to date!
break;
}
// Now what? Should exit! No-longer up to date!
break;
}
@@
-1253,7
+1259,7
@@
static int cluster_process_heartbeat(u8 * data, int size, int more, u8 * p, u32
s -= sizeof(tunnel[more]);
break;
default:
s -= sizeof(tunnel[more]);
break;
default:
-
log
(0,0,0,0, "DANGER: I received a heartbeat element where I didn't understand the type! (%d)\n", type);
+
LOG
(0,0,0,0, "DANGER: I received a heartbeat element where I didn't understand the type! (%d)\n", type);
return -1; // can't process any more of the packet!!
}
}
return -1; // can't process any more of the packet!!
}
}
@@
-1261,7
+1267,7
@@
static int cluster_process_heartbeat(u8 * data, int size, int more, u8 * p, u32
{
char *str;
str = strdup(inet_toa(config->cluster_master_address));
{
char *str;
str = strdup(inet_toa(config->cluster_master_address));
-
log
(0,0,0,0, "My master just changed from %s to %s!\n", str, inet_toa(addr));
+
LOG
(0,0,0,0, "My master just changed from %s to %s!\n", str, inet_toa(addr));
if (str) free(str);
}
if (str) free(str);
}
@@
-1270,7
+1276,7
@@
static int cluster_process_heartbeat(u8 * data, int size, int more, u8 * p, u32
return 0;
shortpacket:
return 0;
shortpacket:
-
log
(0,0,0,0, "I got an incomplete heartbeat packet! This means I'm probably out of sync!!\n");
+
LOG
(0,0,0,0, "I got an incomplete heartbeat packet! This means I'm probably out of sync!!\n");
return -1;
}
return -1;
}
@@
-1287,7
+1293,7
@@
int processcluster(char * data, int size, u32 addr)
if (addr == my_address)
return -1; // Ignore it. Something looped back the multicast!
if (addr == my_address)
return -1; // Ignore it. Something looped back the multicast!
-
log
(5,0,0,0, "Process cluster: %d bytes from %s\n", size, inet_toa(addr));
+
LOG
(5,0,0,0, "Process cluster: %d bytes from %s\n", size, inet_toa(addr));
if (s <= 0) // Any data there??
return -1;
if (s <= 0) // Any data there??
return -1;
@@
-1319,18
+1325,18
@@
int processcluster(char * data, int size, u32 addr)
p += sizeof(int);
if (!config->cluster_iam_master) { // huh?
p += sizeof(int);
if (!config->cluster_iam_master) { // huh?
-
log
(0,0,0,0, "I'm not the master, but I got a C_FORWARD from %s?\n", inet_toa(addr));
+
LOG
(0,0,0,0, "I'm not the master, but I got a C_FORWARD from %s?\n", inet_toa(addr));
return -1;
}
return -1;
}
-
log
(4,0,0,0, "Got a forwarded packet... (%s:%d)\n", inet_toa(more), a.sin_port);
+
LOG
(4,0,0,0, "Got a forwarded packet... (%s:%d)\n", inet_toa(more), a.sin_port);
STAT(recv_forward);
processudp(p, s, &a);
return 0;
}
case C_THROTTLE: { // Receive a forwarded packet from a slave.
if (!config->cluster_iam_master) {
STAT(recv_forward);
processudp(p, s, &a);
return 0;
}
case C_THROTTLE: { // Receive a forwarded packet from a slave.
if (!config->cluster_iam_master) {
-
log
(0,0,0,0, "I'm not the master, but I got a C_THROTTLE from %s?\n", inet_toa(addr));
+
LOG
(0,0,0,0, "I'm not the master, but I got a C_THROTTLE from %s?\n", inet_toa(addr));
return -1;
}
return -1;
}
@@
-1340,7
+1346,7
@@
int processcluster(char * data, int size, u32 addr)
case C_GARDEN:
// Receive a walled garden packet from a slave.
if (!config->cluster_iam_master) {
case C_GARDEN:
// Receive a walled garden packet from a slave.
if (!config->cluster_iam_master) {
-
log
(0,0,0,0, "I'm not the master, but I got a C_GARDEN from %s?\n", inet_toa(addr));
+
LOG
(0,0,0,0, "I'm not the master, but I got a C_GARDEN from %s?\n", inet_toa(addr));
return -1;
}
return -1;
}
@@
-1352,37
+1358,37
@@
int processcluster(char * data, int size, u32 addr)
case C_KILL: // The master asked us to die!? (usually because we're too out of date).
if (config->cluster_iam_master) {
case C_KILL: // The master asked us to die!? (usually because we're too out of date).
if (config->cluster_iam_master) {
-
log
(0,0,0,0, "_I_ am master, but I received a C_KILL from %s! (Seq# %d)\n", inet_toa(addr), more);
+
LOG
(0,0,0,0, "_I_ am master, but I received a C_KILL from %s! (Seq# %d)\n", inet_toa(addr), more);
return -1;
}
if (more != config->cluster_seq_number) {
return -1;
}
if (more != config->cluster_seq_number) {
-
log
(0,0,0,0, "The master asked us to die but the seq number didn't match!?\n");
+
LOG
(0,0,0,0, "The master asked us to die but the seq number didn't match!?\n");
return -1;
}
if (addr != config->cluster_master_address) {
return -1;
}
if (addr != config->cluster_master_address) {
-
log
(0,0,0,0, "Received a C_KILL from %s which doesn't match config->cluster_master_address (%x)\n",
+
LOG
(0,0,0,0, "Received a C_KILL from %s which doesn't match config->cluster_master_address (%x)\n",
inet_toa(addr), config->cluster_master_address);
// We can only warn about it. The master might really have switched!
}
inet_toa(addr), config->cluster_master_address);
// We can only warn about it. The master might really have switched!
}
-
log
(0,0,0,0, "Received a valid C_KILL: I'm going to die now.\n");
+
LOG
(0,0,0,0, "Received a valid C_KILL: I'm going to die now.\n");
kill(0, SIGTERM);
exit(0); // Lets be paranoid;
return -1; // Just signalling the compiler.
case C_HEARTBEAT:
kill(0, SIGTERM);
exit(0); // Lets be paranoid;
return -1; // Just signalling the compiler.
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);
default:
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);
+
LOG
(0,0,0,0, "Strange type packet received on cluster socket (%d)\n", type);
return -1;
}
return 0;
shortpacket:
return -1;
}
return 0;
shortpacket:
-
log
(0,0,0,0, "I got a _short_ cluster heartbeat packet! This means I'm probably out of sync!!\n");
+
LOG
(0,0,0,0, "I got a _short_ cluster heartbeat packet! This means I'm probably out of sync!!\n");
return -1;
}
return -1;
}
@@
-1445,7
+1451,7
@@
int cmd_show_cluster(struct cli_def *cli, char *command, char **argv, int argc)
//
// Worst case is a 50% expansion in space required (trying to
// compress { 0x00, 0x01 } * N )
//
// Worst case is a 50% expansion in space required (trying to
// compress { 0x00, 0x01 } * N )
-int rle_compress(u8 ** src_p, int ssize, u8 *dst, int dsize)
+
static
int rle_compress(u8 ** src_p, int ssize, u8 *dst, int dsize)
{
int count;
int orig_dsize = dsize;
{
int count;
int orig_dsize = dsize;
@@
-1491,7
+1497,7
@@
int rle_compress(u8 ** src_p, int ssize, u8 *dst, int dsize)
// Return the number of dst bytes used.
// Updates the 'src_p' pointer to point to the
// first un-used byte.
// Return the number of dst bytes used.
// Updates the 'src_p' pointer to point to the
// first un-used byte.
-int rle_decompress(u8 ** src_p, int ssize, u8 *dst, int dsize)
+
static
int rle_decompress(u8 ** src_p, int ssize, u8 *dst, int dsize)
{
int count;
int orig_dsize = dsize;
{
int count;
int orig_dsize = dsize;
projects / l2tpns.git / blobdiff