X-Git-Url: https://www.tinc-vpn.org/git/browse?a=blobdiff_plain;f=src%2Fgraph.c;h=bdb32a01622d351cf9f5e9fdc80822262ba3d1b3;hb=ce8775000ab38229a78ecf3dc26bab008ca0f332;hp=5a0aab0ba7bd04979198492ef7ab3854b251484c;hpb=108b238915c5f58b3d94ab433dc5d04e064c2b11;p=tinc diff --git a/src/graph.c b/src/graph.c index 5a0aab0b..bdb32a01 100644 --- a/src/graph.c +++ b/src/graph.c @@ -1,6 +1,6 @@ /* graph.c -- graph algorithms - Copyright (C) 2001-2009 Guus Sliepen , + Copyright (C) 2001-2011 Guus Sliepen , 2001-2005 Ivo Timmermans This program is free software; you can redistribute it and/or modify @@ -53,6 +53,7 @@ #include "netutl.h" #include "node.h" #include "process.h" +#include "protocol.h" #include "subnet.h" #include "utils.h" #include "xalloc.h" @@ -284,16 +285,12 @@ void sssp_bfs(void) { n->address is set to the e->address of the edge left of n to n. We are currently examining the edge e right of n from n: - - If e->reverse->address != n->address, then e->to is probably - not reachable for the nodes left of n. We do as if the indirectdata - flag is set on edge e. - If edge e provides for better reachability of e->to, update e->to and (re)add it to the todo_list to (re)examine the reachability of nodes behind it. */ - indirect = n->status.indirect || e->options & OPTION_INDIRECT - || ((n != myself) && sockaddrcmp(&n->address, &e->reverse->address)); + indirect = n->status.indirect || e->options & OPTION_INDIRECT; if(e->to->status.visited && (!e->to->status.indirect || indirect)) @@ -346,7 +343,7 @@ void check_reachability() { /* TODO: only clear status.validkey if node is unreachable? */ n->status.validkey = false; - n->status.waitingforkey = false; + n->last_req_key = 0; n->maxmtu = MTU; n->minmtu = 0; @@ -378,48 +375,17 @@ void check_reachability() { free(envp[i]); subnet_update(n, NULL, n->status.reachable); - } - } -} - -/* Dump nodes and edges to a graphviz file. - - The file can be converted to an image with - dot -Tpng graph_filename -o image_filename.png -Gconcentrate=true -*/ -int dump_graph(struct evbuffer *out) { - splay_node_t *node; - node_t *n; - edge_t *e; - - if(evbuffer_add_printf(out, "digraph {\n") == -1) - return errno; - - /* dump all nodes first */ - for(node = node_tree->head; node; node = node->next) { - n = node->data; - if(evbuffer_add_printf(out, " %s [label = \"%s\"];\n", - n->name, n->name) == -1) - return errno; - } - - /* now dump all edges */ - for(node = edge_weight_tree->head; node; node = node->next) { - e = node->data; - if(evbuffer_add_printf(out, " %s -> %s;\n", - e->from->name, e->to->name) == -1) - return errno; + if(!n->status.reachable) + update_node_udp(n, NULL); + else if(n->connection) + send_ans_key(n); + } } - - if(evbuffer_add_printf(out, "}\n") == -1) - return errno; - - return 0; } void graph(void) { - subnet_cache_flush(); + subnet_cache_flush(); sssp_dijkstra(); check_reachability(); mst_kruskal();