X-Git-Url: http://git.sameswireless.fr/l2tpns.git/blobdiff_plain/e3afcf30c00151bcbae0dbf093b3a52775bae2f9..f59d286eded501e8c2e5e3f83e6685e47b445ce9:/cluster.c?ds=inline diff --git a/cluster.c b/cluster.c index afb365e..e578636 100644 --- a/cluster.c +++ b/cluster.c @@ -1,6 +1,6 @@ // L2TPNS Clustering Stuff -char const *cvs_id_cluster = "$Id: cluster.c,v 1.17 2004/11/09 03:09:12 bodea Exp $"; +char const *cvs_id_cluster = "$Id: cluster.c,v 1.21 2004/12/09 00:38:44 bodea Exp $"; #include #include @@ -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. -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 @@ -101,14 +101,14 @@ int cluster_init() 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, "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) { - LOG(0, 0, 0, 0, "Failed to get interface address for (%s): %s\n", config->cluster_interface, strerror(errno)); + LOG(0, 0, 0, "Failed to get interface address for (%s): %s\n", config->cluster_interface, strerror(errno)); return -1; } @@ -125,13 +125,13 @@ int cluster_init() 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, "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) { - LOG(0, 0, 0, 0, "Failed to setsockopt (set mcast interface): %s\n", strerror(errno)); + LOG(0, 0, 0, "Failed to setsockopt (set mcast interface): %s\n", strerror(errno)); return -1; } @@ -147,7 +147,7 @@ int cluster_init() // address ). // -int cluster_send_data(void *data, int datalen) +static int cluster_send_data(void *data, int datalen) { 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; - LOG(5,0,0,0, "Cluster send data: %d bytes\n", datalen); + LOG(5, 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, "sendto: %s\n", strerror(errno)); + LOG(0, 0, 0, "sendto: %s\n", strerror(errno)); return -1; } @@ -200,7 +200,7 @@ static void advertise(void) send_garp(config->bind_address); // Start taking traffic. } -void cluster_uptodate(void) +static void cluster_uptodate(void) { if (config->cluster_iam_uptodate) return; @@ -210,7 +210,7 @@ void cluster_uptodate(void) config->cluster_iam_uptodate = 1; - LOG(0,0,0,0, "Now uptodate with master.\n"); + LOG(0, 0, 0, "Now uptodate with master.\n"); advertise(); } @@ -218,7 +218,7 @@ void cluster_uptodate(void) // 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}; @@ -236,7 +236,7 @@ int peer_send_data(u32 peer, char * data, int size) 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, "sendto: %s\n", strerror(errno)); return -1; } @@ -246,12 +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'. // -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; - LOG(4,0,0,0, "Sending message to peer (type %d, more %d, size %d)\n", type, more, size); + LOG(4, 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) ); @@ -271,7 +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; - LOG(4,0,0,0, "Forwarding packet from %s to master (size %d)\n", inet_toa(addr), size); + LOG(4, 0, 0, "Forwarding packet from %s to master (size %d)\n", fmtaddr(addr, 0), size); STAT(c_forwarded); add_type(&p, C_FORWARD, addr, (char*) &port, sizeof(port) ); @@ -297,7 +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; - LOG(4,0,0,0, "Throttling packet master (size %d, tbfid %d)\n", size, tbfid); + LOG(4, 0, 0, "Throttling packet master (size %d, tbfid %d)\n", size, tbfid); add_type(&p, C_THROTTLE, tbfid, data, size); @@ -322,7 +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; - LOG(4,0,0,0, "Walled garden packet to master (size %d)\n", size); + LOG(4, 0, 0, "Walled garden packet to master (size %d)\n", size); add_type(&p, C_GARDEN, s, data, size); @@ -340,7 +340,7 @@ static void send_heartbeat(int seq, char * data, int size) 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, "Tried to heartbeat something larger than the maximum packet!\n"); kill(0, SIGTERM); exit(1); } @@ -363,7 +363,7 @@ void cluster_send_ping(time_t basetime) if (config->cluster_iam_master && basetime) // We're heartbeating so no need to ping. return; - LOG(5,0,0,0, "Sending cluster ping...\n"); + LOG(5, 0, 0, "Sending cluster ping...\n"); x.ver = 1; x.addr = config->bind_address; @@ -422,7 +422,7 @@ void master_update_counts(void) // Forward the data to the master. - LOG(4,0,0,0, "Sending byte counters to master (%d elements)\n", c); + LOG(4, 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; } @@ -491,7 +491,7 @@ void cluster_check_master(void) if (!probed && config->cluster_master_address) { probed = 1; - LOG(1, 0, 0, 0, "Heartbeat from master %.1fs late, probing...\n", + LOG(1, 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, @@ -506,7 +506,7 @@ void cluster_check_master(void) 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, "Master timed out! Holding election...\n"); for (i = 0; i < num_peers; i++) { @@ -517,13 +517,13 @@ void cluster_check_master(void) 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, "Expecting %s to become master\n", fmtaddr(peers[i].peer, 0)); 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, "Expecting %s to become master\n", fmtaddr(peers[i].peer, 0)); return; // They'll win the election. Wait for them to come up. } } @@ -535,7 +535,7 @@ void cluster_check_master(void) 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, "I am declaring myself the master!\n"); if (config->cluster_seq_number == -1) config->cluster_seq_number = 0; @@ -607,7 +607,7 @@ void cluster_check_master(void) // 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, "Warning: Fixed %d uninitialized sessions in becoming master!\n", count); config->cluster_undefined_sessions = 0; config->cluster_undefined_tunnels = 0; @@ -670,7 +670,7 @@ static void cluster_check_sessions(int highsession, int freesession_ptr, int hig 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, "Cleared undefined sessions/tunnels. %d sess (high %d), %d tunn (high %d)\n", config->cluster_undefined_sessions, highsession, config->cluster_undefined_tunnels, hightunnel); return; } @@ -681,7 +681,7 @@ static void cluster_check_sessions(int highsession, int freesession_ptr, int hig 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. @@ -724,7 +724,7 @@ int hb_add_type(char **p, int type, int id) (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, "Found an invalid type in heart queue! (%d)\n", type); kill(0, SIGTERM); exit(1); } @@ -744,6 +744,8 @@ void cluster_heartbeat() if (!config->cluster_iam_master) // Only the master does this. return; + config->cluster_table_version += config->cluster_num_changes; + // Fill out the heartbeat header. memset(&h, 0, sizeof(h)); @@ -759,6 +761,7 @@ void cluster_heartbeat() h.size_tunn = sizeof(tunnelt); h.interval = config->cluster_hb_interval; h.timeout = config->cluster_hb_timeout; + h.table_version = config->cluster_table_version; add_type(&p, C_HEARTBEAT, HB_VERSION, (char*) &h, sizeof(h)); @@ -767,7 +770,7 @@ void cluster_heartbeat() } 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, "FATAL: Overran the heartbeat buffer! This is fatal. Exiting. (size %d)\n", p - buff); kill(0, SIGTERM); exit(1); } @@ -812,14 +815,16 @@ void cluster_heartbeat() // // 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, "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", - h.seq, config->cluster_num_changes, count, tcount, config->cluster_highest_sessionid, - config->cluster_highest_tunnelid, (p-buff)); + LOG(3, 0, 0, "Sending v%d heartbeat #%d, change #%llu with %d changes " + "(%d x-sess, %d x-tunnels, %d highsess, %d hightun, size %d)\n", + HB_VERSION, h.seq, h.table_version, config->cluster_num_changes, + count, tcount, config->cluster_highest_sessionid, + config->cluster_highest_tunnelid, (p-buff)); config->cluster_num_changes = 0; @@ -831,7 +836,7 @@ void cluster_heartbeat() // // 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; @@ -855,7 +860,7 @@ int type_changed(int type, int id) 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, sid, 0, "I'm not a master, but I just tried to change a session!\n"); return -1; } @@ -866,7 +871,7 @@ int cluster_send_session(int sid) 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, tid, "I'm not a master, but I just tried to change a tunnel!\n"); return -1; } @@ -879,19 +884,19 @@ int cluster_send_tunnel(int tid) // 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; - LOG(1,0,0,0, "Slave %s sent LASTSEEN with seq %d\n", inet_toa(slave), seq); + LOG(1, 0, 0, "Slave %s sent LASTSEEN with seq %d\n", fmtaddr(slave, 0), 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! - LOG(0,0,0,0, "A slaved asked for message %d when our seq number is %d. Killing it.\n", + LOG(0, 0, 0, "A slave 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. } @@ -900,8 +905,8 @@ 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) { - 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); + LOG(0, 0, 0, "Tried to re-send heartbeat for %s but %d doesn't match %d! (%d,%d)\n", + fmtaddr(slave, 0), seq, past_hearts[s].seq, s, config->cluster_seq_number); return -1; // What to do here!? } peer_send_data(slave, past_hearts[s].data, past_hearts[s].size); @@ -914,7 +919,7 @@ 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. // -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; @@ -934,7 +939,7 @@ int cluster_add_peer(u32 peer, time_t basetime, pingt *pp, int size) 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, "Skipping ping from %s (different cluster)\n", fmtaddr(peer, 0)); return 0; } @@ -952,7 +957,7 @@ 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) { - LOG(3,0,0,0, "Master %s shutting down...\n", inet_toa(config->cluster_master_address)); + LOG(3, 0, 0, "Master %s shutting down...\n", fmtaddr(config->cluster_master_address, 0)); config->cluster_master_address = 0; config->cluster_last_hb = 0; // Force an election. cluster_check_master(); @@ -961,7 +966,7 @@ int cluster_add_peer(u32 peer, time_t basetime, pingt *pp, int size) if (i >= num_peers) { - LOG(4,0,0,0, "Adding %s as a peer\n", inet_toa(peer)); + LOG(4, 0, 0, "Adding %s as a peer\n", fmtaddr(peer, 0)); // Not found. Is there a stale slot to re-use? for (i = 0; i < num_peers ; ++i) @@ -976,7 +981,7 @@ int cluster_add_peer(u32 peer, time_t basetime, pingt *pp, int size) 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, "Tried to add %s as a peer, but I already have %d of them!\n", fmtaddr(peer, 0), i); return -1; } @@ -987,7 +992,7 @@ int cluster_add_peer(u32 peer, time_t basetime, pingt *pp, int size) 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, "Added %s as a new peer. Now %d peers\n", fmtaddr(peer, 0), num_peers); } return 1; @@ -998,20 +1003,20 @@ 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. // -int cluster_handle_bytes(char * data, int size) +static int cluster_handle_bytes(char * data, int size) { bytest * b; b = (bytest*) data; - LOG(3,0,0,0, "Got byte counter update (size %d)\n", size); + LOG(3, 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) { - LOG(0,0,0,0, "Got C_BYTES with session #%d!\n", b->sid); + LOG(0, 0, 0, "Got C_BYTES with session #%d!\n", b->sid); return -1; /* Abort processing */ } @@ -1027,7 +1032,7 @@ int cluster_handle_bytes(char * data, int size) } if (size != 0) - LOG(0,0,0,0, "Got C_BYTES with %d bytes of trailing junk!\n", size); + LOG(0, 0, 0, "Got C_BYTES with %d bytes of trailing junk!\n", size); return size; } @@ -1038,13 +1043,13 @@ int cluster_handle_bytes(char * data, int size) 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, "DANGER: Received a heartbeat session id > MAXSESSION!\n"); 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, "I thought I was uptodate but I just found an undefined session!\n"); } else { --config->cluster_undefined_sessions; } @@ -1052,7 +1057,7 @@ static int cluster_recv_session(int more , u8 * p) 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, 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. @@ -1063,13 +1068,13 @@ static int cluster_recv_session(int more , u8 * p) 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, "DANGER: Received a tunnel session id > MAXTUNNEL!\n"); 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, "I thought I was uptodate but I just found an undefined tunnel!\n"); } else { --config->cluster_undefined_tunnels; } @@ -1084,7 +1089,7 @@ static int cluster_recv_tunnel(int more, u8 *p) tunnel[more].controls = tunnel[more].controle = NULL; tunnel[more].controlc = 0; - LOG(5,0,0,more, "Received tunnel update\n"); + LOG(5, 0, more, "Received tunnel update\n"); if (!config->cluster_iam_uptodate) cluster_uptodate(); // Check to see if we're up to date. @@ -1096,19 +1101,21 @@ static int cluster_recv_tunnel(int more, u8 *p) // // Process a heartbeat.. // +// v3: added interval, timeout +// v4: added table_version 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 HB_VERSION != 3 +#if HB_VERSION != 4 # 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); + // we handle versions 3 through 4 + if (more < 3 || more > HB_VERSION) { + LOG(0, 0, 0, "Received a heartbeat version that I don't support (%d)!\n", more); return -1; // Ignore it?? } @@ -1126,18 +1133,25 @@ 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! - 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, "I just got a heartbeat from master %s, but _I_ am the master!\n", fmtaddr(addr, 0)); if (!h->basetime) { - LOG(0,0,0,0, "Heartbeat from addr %s with zero basetime!\n", inet_toa(addr) ); + LOG(0, 0, 0, "Heartbeat with zero basetime! Ignoring\n"); return -1; // Skip it. } + if (more >= 4 && h->table_version > config->cluster_table_version) { + LOG(0, 0, 0, "They've seen more state changes (%llu vs my %llu) so I'm gone!\n", + h->table_version, config->cluster_table_version); + + kill(0, SIGTERM); + exit(1); + } 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, "They're an older master than me so I'm gone!\n"); 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, "They're a higher IP address than me, so I'm gone!\n"); kill(0, SIGTERM); exit(1); } @@ -1150,7 +1164,7 @@ 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! - 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, "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); @@ -1173,23 +1187,20 @@ static int cluster_process_heartbeat(u8 * data, int size, int more, u8 * p, u32 // 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) { - 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); + LOG(2, 0, 0, "Master set ping/heartbeat interval to %u (was %u)\n", + h->interval, config->cluster_hb_interval); - config->cluster_hb_interval = h->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); + if (h->timeout != config->cluster_hb_timeout) + { + LOG(2, 0, 0, "Master set heartbeat timeout to %u (was %u)\n", + h->timeout, config->cluster_hb_timeout); - config->cluster_hb_timeout = h->timeout; - } + config->cluster_hb_timeout = h->timeout; } // Ok. process the packet... @@ -1213,7 +1224,7 @@ 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! - LOG(0,0,0,0, "DANGER: Received a CSESSION that didn't decompress correctly!\n"); + LOG(0, 0, 0, "DANGER: Received a CSESSION that didn't decompress correctly!\n"); // Now what? Should exit! No-longer up to date! break; } @@ -1240,7 +1251,7 @@ 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! - LOG(0,0,0,0, "DANGER: Received a CSESSION that didn't decompress correctly!\n"); + LOG(0, 0, 0, "DANGER: Received a CSESSION that didn't decompress correctly!\n"); // Now what? Should exit! No-longer up to date! break; } @@ -1259,24 +1270,25 @@ static int cluster_process_heartbeat(u8 * data, int size, int more, u8 * p, u32 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, "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!! } } + if (config->cluster_master_address != addr) { - 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)); - if (str) free(str); + LOG(0, 0, 0, "My master just changed from %s to %s!\n", + fmtaddr(config->cluster_master_address, 0), fmtaddr(addr, 1)); + + config->cluster_master_address = addr; } - config->cluster_master_address = addr; config->cluster_last_hb = TIME; // Successfully received a heartbeat! + config->cluster_table_version = h->table_version; 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, "I got an incomplete heartbeat packet! This means I'm probably out of sync!!\n"); return -1; } @@ -1293,7 +1305,7 @@ int processcluster(char * data, int size, u32 addr) 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, "Process cluster: %d bytes from %s\n", size, fmtaddr(addr, 0)); if (s <= 0) // Any data there?? return -1; @@ -1325,18 +1337,18 @@ int processcluster(char * data, int size, u32 addr) 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, "I'm not the master, but I got a C_FORWARD from %s?\n", fmtaddr(addr, 0)); return -1; } - LOG(4,0,0,0, "Got a forwarded packet... (%s:%d)\n", inet_toa(more), a.sin_port); + LOG(4, 0, 0, "Got a forwarded packet... (%s:%d)\n", fmtaddr(more, 0), 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) { - 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, "I'm not the master, but I got a C_THROTTLE from %s?\n", fmtaddr(addr, 0)); return -1; } @@ -1346,7 +1358,7 @@ int processcluster(char * data, int size, u32 addr) case C_GARDEN: // Receive a walled garden packet from a slave. if (!config->cluster_iam_master) { - 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, "I'm not the master, but I got a C_GARDEN from %s?\n", fmtaddr(addr, 0)); return -1; } @@ -1358,37 +1370,37 @@ 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) { - 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, "_I_ am master, but I received a C_KILL from %s! (Seq# %d)\n", fmtaddr(addr, 0), more); 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, "The master asked us to die but the seq number didn't match!?\n"); 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", - inet_toa(addr), config->cluster_master_address); + LOG(0, 0, 0, "Received a C_KILL from %s which doesn't match config->cluster_master_address (%s)\n", + fmtaddr(addr, 0), fmtaddr(config->cluster_master_address, 1)); // 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, "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: - LOG(4,0,0,0, "Got a heartbeat from %s\n", inet_toa(addr)); + LOG(4, 0, 0, "Got a heartbeat from %s\n", fmtaddr(addr, 0)); 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, "Strange type packet received on cluster socket (%d)\n", type); 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, "I got a _short_ cluster heartbeat packet! This means I'm probably out of sync!!\n"); return -1; } @@ -1402,20 +1414,24 @@ int cmd_show_cluster(struct cli_def *cli, char *command, char **argv, int argc) return CLI_HELP_NO_ARGS; cli_print(cli, "Cluster status : %s", config->cluster_iam_master ? "Master" : "Slave" ); - cli_print(cli, "My address : %s", inet_toa(my_address)); - cli_print(cli, "VIP address : %s", inet_toa(config->bind_address)); - cli_print(cli, "Multicast address: %s", inet_toa(config->cluster_address)); + cli_print(cli, "My address : %s", fmtaddr(my_address, 0)); + cli_print(cli, "VIP address : %s", fmtaddr(config->bind_address, 0)); + cli_print(cli, "Multicast address: %s", fmtaddr(config->cluster_address, 0)); cli_print(cli, "Multicast i'face : %s", config->cluster_interface); if (!config->cluster_iam_master) { cli_print(cli, "My master : %s (last heartbeat %.1f seconds old)", - config->cluster_master_address ? inet_toa(config->cluster_master_address) : "Not defined", + config->cluster_master_address + ? fmtaddr(config->cluster_master_address, 0) + : "Not defined", 0.1 * (TIME - config->cluster_last_hb)); cli_print(cli, "Uptodate : %s", config->cluster_iam_uptodate ? "Yes" : "No"); + cli_print(cli, "Table version # : %llu", config->cluster_table_version); cli_print(cli, "Next sequence number expected: %d", config->cluster_seq_number); cli_print(cli, "%d sessions undefined of %d", config->cluster_undefined_sessions, config->cluster_highest_sessionid); cli_print(cli, "%d tunnels undefined of %d", config->cluster_undefined_tunnels, config->cluster_highest_tunnelid); } else { + cli_print(cli, "Table version # : %llu", config->cluster_table_version); cli_print(cli, "Next heartbeat # : %d", config->cluster_seq_number); cli_print(cli, "Highest session : %d", config->cluster_highest_sessionid); cli_print(cli, "Highest tunnel : %d", config->cluster_highest_tunnelid); @@ -1426,7 +1442,7 @@ int cmd_show_cluster(struct cli_def *cli, char *command, char **argv, int argc) if (num_peers) cli_print(cli, "%20s %10s %8s", "Address", "Basetime", "Age"); for (i = 0; i < num_peers; ++i) { - cli_print(cli, "%20s %10d %8d", inet_toa(peers[i].peer), + cli_print(cli, "%20s %10d %8d", fmtaddr(peers[i].peer, 0), peers[i].basetime, TIME - peers[i].timestamp); } return CLI_OK; @@ -1451,7 +1467,7 @@ 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 ) -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; @@ -1497,7 +1513,7 @@ 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. -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;