X-Git-Url: http://git.meshlink.io/?a=blobdiff_plain;f=src%2Fnet.c;h=878a2f99b5e0de984d34762bb0775db0650ec18d;hb=d120093edac59d1e634d970ee486f4a2a205d2fa;hp=4cae25c1b15206403acf9c5a18d98337dcf5f65c;hpb=1e08f518b26db292ad81ce44fc0df06f4df3a869;p=meshlink diff --git a/src/net.c b/src/net.c index 4cae25c1..878a2f99 100644 --- a/src/net.c +++ b/src/net.c @@ -31,16 +31,6 @@ #include "protocol.h" #include "xalloc.h" -int contradicting_add_edge = 0; -int contradicting_del_edge = 0; -static int sleeptime = 10; -time_t last_config_check = 0; -static timeout_t pingtimer; -static timeout_t periodictimer; - -//TODO: move this to a better place -char *confbase; - /* Purge edges of unreachable nodes. Use carefully. */ // TODO: remove @@ -49,12 +39,12 @@ void purge(void) { /* Remove all edges owned by unreachable nodes. */ - for splay_each(node_t, n, node_tree) { + for splay_each(node_t, n, mesh->nodes) { if(!n->status.reachable) { logger(DEBUG_SCARY_THINGS, LOG_DEBUG, "Purging node %s (%s)", n->name, n->hostname); for splay_each(edge_t, e, n->edge_tree) { - send_del_edge(everyone, e); + send_del_edge(mesh->everyone, e); edge_del(e); } } @@ -62,9 +52,9 @@ void purge(void) { /* Check if anyone else claims to have an edge to an unreachable node. If not, delete node. */ - for splay_each(node_t, n, node_tree) { + for splay_each(node_t, n, mesh->nodes) { if(!n->status.reachable) { - for splay_each(edge_t, e, edge_weight_tree) + for splay_each(edge_t, e, mesh->edges) if(e->to == n) return; } @@ -88,7 +78,7 @@ void terminate_connection(connection_t *c, bool report) { if(c->edge) { if(report) - send_del_edge(everyone, c->edge); + send_del_edge(mesh->everyone, c->edge); edge_del(c->edge); c->edge = NULL; @@ -103,7 +93,7 @@ void terminate_connection(connection_t *c, bool report) { edge_t *e; e = lookup_edge(c->node, mesh->self); if(e) { - send_del_edge(everyone, e); + send_del_edge(mesh->everyone, e); edge_del(e); } } @@ -132,13 +122,13 @@ void terminate_connection(connection_t *c, bool report) { end does not reply in time, we consider them dead and close the connection. */ -static void timeout_handler(void *data) { - for list_each(connection_t, c, connection_list) { - if(c->last_ping_time + pingtimeout <= now.tv_sec) { +static void timeout_handler(event_loop_t *loop, void *data) { + for list_each(connection_t, c, mesh->connections) { + if(c->last_ping_time + mesh->pingtimeout <= mesh->loop.now.tv_sec) { if(c->status.active) { if(c->status.pinged) { - logger(DEBUG_CONNECTIONS, LOG_INFO, "%s (%s) didn't respond to PING in %ld seconds", c->name, c->hostname, (long)now.tv_sec - c->last_ping_time); - } else if(c->last_ping_time + pinginterval <= now.tv_sec) { + logger(DEBUG_CONNECTIONS, LOG_INFO, "%s (%s) didn't respond to PING in %ld seconds", c->name, c->hostname, (long)mesh->loop.now.tv_sec - c->last_ping_time); + } else if(c->last_ping_time + mesh->pinginterval <= mesh->loop.now.tv_sec) { send_ping(c); continue; } else { @@ -154,36 +144,36 @@ static void timeout_handler(void *data) { } } - timeout_set(data, &(struct timeval){pingtimeout, rand() % 100000}); + timeout_set(&mesh->loop, data, &(struct timeval){mesh->pingtimeout, rand() % 100000}); } -static void periodic_handler(void *data) { +static void periodic_handler(event_loop_t *loop, void *data) { /* Check if there are too many contradicting ADD_EDGE and DEL_EDGE messages. This usually only happens when another node has the same Name as this node. If so, sleep for a short while to prevent a storm of contradicting messages. */ - if(contradicting_del_edge > 100 && contradicting_add_edge > 100) { - logger(DEBUG_ALWAYS, LOG_WARNING, "Possible node with same Name as us! Sleeping %d seconds.", sleeptime); - usleep(sleeptime * 1000000LL); - sleeptime *= 2; - if(sleeptime < 0) - sleeptime = 3600; + if(mesh->contradicting_del_edge > 100 && mesh->contradicting_add_edge > 100) { + logger(DEBUG_ALWAYS, LOG_WARNING, "Possible node with same Name as us! Sleeping %d seconds.", mesh->sleeptime); + usleep(mesh->sleeptime * 1000000LL); + mesh->sleeptime *= 2; + if(mesh->sleeptime < 0) + mesh->sleeptime = 3600; } else { - sleeptime /= 2; - if(sleeptime < 10) - sleeptime = 10; + mesh->sleeptime /= 2; + if(mesh->sleeptime < 10) + mesh->sleeptime = 10; } - contradicting_add_edge = 0; - contradicting_del_edge = 0; + mesh->contradicting_add_edge = 0; + mesh->contradicting_del_edge = 0; /* If AutoConnect is set, check if we need to make or break connections. */ - if(autoconnect && node_tree->count > 1) { + if(autoconnect && mesh->nodes->count > 1) { /* Count number of active connections */ int nc = 0; - for list_each(connection_t, c, connection_list) { + for list_each(connection_t, c, mesh->connections) { if(c->status.active) nc++; } @@ -194,10 +184,10 @@ static void periodic_handler(void *data) { and we are not already trying to make one, create an outgoing connection to this node. */ - int r = rand() % node_tree->count; + int r = rand() % mesh->nodes->count; int i = 0; - for splay_each(node_t, n, node_tree) { + for splay_each(node_t, n, mesh->nodes) { if(i++ != r) continue; @@ -206,7 +196,7 @@ static void periodic_handler(void *data) { bool found = false; - for list_each(outgoing_t, outgoing, outgoing_list) { + for list_each(outgoing_t, outgoing, mesh->outgoings) { if(!strcmp(outgoing->name, n->name)) { found = true; break; @@ -217,7 +207,7 @@ static void periodic_handler(void *data) { logger(DEBUG_CONNECTIONS, LOG_INFO, "Autoconnecting to %s", n->name); outgoing_t *outgoing = xzalloc(sizeof *outgoing); outgoing->name = xstrdup(n->name); - list_insert_tail(outgoing_list, outgoing); + list_insert_tail(mesh->outgoings, outgoing); setup_outgoing_connection(outgoing); } break; @@ -230,7 +220,7 @@ static void periodic_handler(void *data) { int r = rand() % nc; int i = 0; - for list_each(connection_t, c, connection_list) { + for list_each(connection_t, c, mesh->connections) { if(!c->status.active) continue; @@ -241,7 +231,7 @@ static void periodic_handler(void *data) { break; logger(DEBUG_CONNECTIONS, LOG_INFO, "Autodisconnecting from %s", c->name); - list_delete(outgoing_list, c->outgoing); + list_delete(mesh->outgoings, c->outgoing); c->outgoing = NULL; terminate_connection(c, c->status.active); break; @@ -252,9 +242,9 @@ static void periodic_handler(void *data) { /* If we have enough active connections, remove any pending outgoing connections. */ - for list_each(outgoing_t, o, outgoing_list) { + for list_each(outgoing_t, o, mesh->outgoings) { bool found = false; - for list_each(connection_t, c, connection_list) { + for list_each(connection_t, c, mesh->connections) { if(c->outgoing == o) { found = true; break; @@ -262,13 +252,13 @@ static void periodic_handler(void *data) { } if(!found) { logger(DEBUG_CONNECTIONS, LOG_INFO, "Cancelled outgoing connection to %s", o->name); - list_delete_node(outgoing_list, node); + list_delete_node(mesh->outgoings, node); } } } } - timeout_set(data, &(struct timeval){5, rand() % 100000}); + timeout_set(&mesh->loop, data, &(struct timeval){5, rand() % 100000}); } void handle_meta_connection_data(connection_t *c) { @@ -279,21 +269,20 @@ void handle_meta_connection_data(connection_t *c) { } int reload_configuration(void) { - char *fname = NULL; + char filename[PATH_MAX]; /* Reread our own configuration file */ - exit_configuration(&config_tree); - init_configuration(&config_tree); + exit_configuration(&mesh->config); + init_configuration(&mesh->config); if(!read_server_config()) { logger(DEBUG_ALWAYS, LOG_ERR, "Unable to reread configuration file."); return EINVAL; } - xasprintf(&fname, "%s" SLASH "hosts" SLASH "%s", confbase, mesh->self->name); - read_config_file(config_tree, fname); - free(fname); + snprintf(filename, PATH_MAX,"%s" SLASH "hosts" SLASH "%s", mesh->confbase, mesh->self->name); + read_config_file(mesh->config, filename); /* Parse some options that are allowed to be changed while tinc is running */ @@ -305,53 +294,52 @@ int reload_configuration(void) { /* Close connections to hosts that have a changed or deleted host config file */ - for list_each(connection_t, c, connection_list) { - xasprintf(&fname, "%s" SLASH "hosts" SLASH "%s", confbase, c->name); + for list_each(connection_t, c, mesh->connections) { + snprintf(filename, PATH_MAX,"%s" SLASH "hosts" SLASH "%s", mesh->confbase, c->name); struct stat s; - if(stat(fname, &s) || s.st_mtime > last_config_check) { + if(stat(filename, &s) || s.st_mtime > mesh->last_config_check) { logger(DEBUG_CONNECTIONS, LOG_INFO, "Host config file of %s has been changed", c->name); terminate_connection(c, c->status.active); } - free(fname); } - last_config_check = now.tv_sec; + mesh->last_config_check = mesh->loop.now.tv_sec; return 0; } void retry(void) { /* Reset the reconnection timers for all outgoing connections */ - for list_each(outgoing_t, outgoing, outgoing_list) { + for list_each(outgoing_t, outgoing, mesh->outgoings) { outgoing->timeout = 0; if(outgoing->ev.cb) - timeout_set(&outgoing->ev, &(struct timeval){0, 0}); + timeout_set(&mesh->loop, &outgoing->ev, &(struct timeval){0, 0}); } /* Check for outgoing connections that are in progress, and reset their ping timers */ - for list_each(connection_t, c, connection_list) { + for list_each(connection_t, c, mesh->connections) { if(c->outgoing && !c->node) c->last_ping_time = 0; } /* Kick the ping timeout handler */ - timeout_set(&pingtimer, &(struct timeval){0, 0}); + timeout_set(&mesh->loop, &mesh->pingtimer, &(struct timeval){0, 0}); } /* this is where it all happens... */ int main_loop(void) { - timeout_add(&pingtimer, timeout_handler, &pingtimer, &(struct timeval){pingtimeout, rand() % 100000}); - timeout_add(&periodictimer, periodic_handler, &periodictimer, &(struct timeval){pingtimeout, rand() % 100000}); + timeout_add(&mesh->loop, &mesh->pingtimer, timeout_handler, &mesh->pingtimer, &(struct timeval){mesh->pingtimeout, rand() % 100000}); + timeout_add(&mesh->loop, &mesh->periodictimer, periodic_handler, &mesh->periodictimer, &(struct timeval){mesh->pingtimeout, rand() % 100000}); - if(!event_loop()) { + if(!event_loop_run(&mesh->loop)) { logger(DEBUG_ALWAYS, LOG_ERR, "Error while waiting for input: %s", strerror(errno)); return 1; } - timeout_del(&periodictimer); - timeout_del(&pingtimer); + timeout_del(&mesh->loop, &mesh->periodictimer); + timeout_del(&mesh->loop, &mesh->pingtimer); return 0; }