X-Git-Url: http://git.sameswireless.fr/l2tpns.git/blobdiff_plain/6b1075b65c4239e97629f3a891f49f5ae9ef3d4b..ea99c373311aabddb98216d5d33c1fb94b6d3644:/cluster.c diff --git a/cluster.c b/cluster.c index 6ef6f83..c3e2002 100644 --- a/cluster.c +++ b/cluster.c @@ -1,8 +1,12 @@ // L2TPNS Clustering Stuff -char const *cvs_id_cluster = "$Id: cluster.c,v 1.25 2004/12/16 08:49:53 bodea Exp $"; +char const *cvs_id_cluster = "$Id: cluster.c,v 1.30 2005/02/09 02:38:51 bodea Exp $"; #include +#include +#include +#include +#include #include #include #include @@ -13,12 +17,7 @@ char const *cvs_id_cluster = "$Id: cluster.c,v 1.25 2004/12/16 08:49:53 bodea Ex #include #include #include -#include -#include -#include -#include #include -#include #include "l2tpns.h" #include "cluster.h" @@ -39,11 +38,12 @@ char const *cvs_id_cluster = "$Id: cluster.c,v 1.25 2004/12/16 08:49:53 bodea Ex */ // Module variables. -int cluster_sockfd = 0; // The filedescriptor for the cluster communications port. +int cluster_sockfd = 0; // The filedescriptor for the cluster communications port. in_addr_t 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_tunnel_number = 0; // The next tunnel to send when doing the slow table walk. +int forked = 0; // Sanity check: CLI must not diddle with heartbeat table #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! @@ -62,7 +62,7 @@ static struct { static struct { in_addr_t peer; - time_t basetime; + uint32_t basetime; clockt timestamp; int uptodate; } peers[CLUSTER_MAX_SIZE]; // List of all the peers we've heard from. @@ -406,18 +406,18 @@ void master_update_counts(void) if ( walk_session_number > config->cluster_highest_sessionid) walk_session_number = 1; - if (!sess_count[walk_session_number].cin && !sess_count[walk_session_number].cout) + if (!sess_local[walk_session_number].cin && !sess_local[walk_session_number].cout) continue; // Unused. Skip it. b[c].sid = walk_session_number; - b[c].in = sess_count[walk_session_number].cin; - b[c].out = sess_count[walk_session_number].cout; + b[c].in = sess_local[walk_session_number].cin; + b[c].out = sess_local[walk_session_number].cout; if (++c > MAX_B_RECS) // Send a max of 400 elements in a packet. break; // Reset counters. - sess_count[walk_session_number].cin = sess_count[walk_session_number].cout = 0; + sess_local[walk_session_number].cin = sess_local[walk_session_number].cout = 0; } if (!c) // Didn't find any that changes. Get out of here! @@ -581,12 +581,12 @@ void cluster_check_master(void) session[i].last_packet = time_now; // Accumulate un-sent byte counters. - session[i].cin += sess_count[i].cin; - session[i].cout += sess_count[i].cout; - session[i].total_cin += sess_count[i].cin; - session[i].total_cout += sess_count[i].cout; + session[i].cin += sess_local[i].cin; + session[i].cout += sess_local[i].cout; + session[i].total_cin += sess_local[i].cin; + session[i].total_cout += sess_local[i].cout; - sess_count[i].cin = sess_count[i].cout = 0; + sess_local[i].cin = sess_local[i].cout = 0; session[i].radius = 0; // Reset authentication as the radius blocks aren't up to date. @@ -650,7 +650,7 @@ static void cluster_check_sessions(int highsession, int freesession_ptr, int hig config->cluster_undefined_sessions = 0; for (i = 1 ; i < MAXSESSION; ++i) { if (i > highsession) { - session[i].tunnel = 0; // Defined. + session[i].tunnel = T_FREE; // Defined. continue; } if (session[i].tunnel != T_UNDEF) @@ -867,6 +867,11 @@ int cluster_send_session(int sid) return -1; } + if (forked) { + LOG(0, sid, 0, "cluster_send_session called from child process!\n"); + return -1; + } + return type_changed(C_CSESSION, sid); } @@ -1178,9 +1183,22 @@ static int cluster_process_heartbeat(uint8_t *data, int size, int more, uint8_t 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, "HB: Got seq# %d but was expecting %d. asking for resend.\n", h->seq, config->cluster_seq_number); + static int lastseen_seq = 0; + static time_t lastseen_time = 0; - peer_send_message(addr, C_LASTSEEN, config->cluster_seq_number, NULL, 0); + // limit to once per second for a particular seq# + int ask = (config->cluster_seq_number != lastseen_seq || time_now != lastseen_time); + + LOG(1, 0, 0, "HB: Got seq# %d but was expecting %d. %s.\n", + h->seq, config->cluster_seq_number, + ask ? "Asking for resend" : "Ignoring"); + + if (ask) + { + lastseen_seq = config->cluster_seq_number; + lastseen_time = time_now; + peer_send_message(addr, C_LASTSEEN, config->cluster_seq_number, NULL, 0); + } config->cluster_last_hb = TIME; // Reset to ensure that we don't become master!! @@ -1440,12 +1458,12 @@ int cmd_show_cluster(struct cli_def *cli, char *command, char **argv, int argc) : "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, "Table version # : %" PRIu64, 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, "Table version # : %" PRIu64, 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); @@ -1456,7 +1474,7 @@ 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", fmtaddr(peers[i].peer, 0), + cli_print(cli, "%20s %10u %8d", fmtaddr(peers[i].peer, 0), peers[i].basetime, TIME - peers[i].timestamp); } return CLI_OK;