X-Git-Url: http://git.meshlink.io/?p=meshlink;a=blobdiff_plain;f=src%2Fgraph.c;h=60ac3adfc362a50806ac93b3b5e44850813f2ef7;hp=8e39b98d62f7e0c0167ad36b4fa697c2e7864cd2;hb=f31267783fccb4e17d914c64243b0cba4e5632c4;hpb=cb8aedb0d1da7fc93299d8fd5005b9631364b7ee diff --git a/src/graph.c b/src/graph.c index 8e39b98d..60ac3adf 100644 --- a/src/graph.c +++ b/src/graph.c @@ -36,9 +36,9 @@ For the SSSP algorithm Dijkstra's seems to be a nice choice. Currently a simple breadth-first search is presented here. - The SSSP algorithm will also be used to determine whether nodes are directly, - indirectly or not reachable from the source. It will also set the correct - destination address and port of a node if possible. + The SSSP algorithm will also be used to determine whether nodes are + reachable from the source. It will also set the correct destination address + and port of a node if possible. */ #include "system.h" @@ -126,17 +126,14 @@ static void sssp_bfs(meshlink_handle_t *mesh) { for splay_each(node_t, n, mesh->nodes) { n->status.visited = false; - n->status.indirect = true; n->distance = -1; } /* Begin with mesh->self */ mesh->self->status.visited = true; - mesh->self->status.indirect = false; mesh->self->nexthop = mesh->self; mesh->self->prevedge = NULL; - mesh->self->via = mesh->self; mesh->self->distance = 0; list_insert_head(todo_list, mesh->self); @@ -171,20 +168,14 @@ static void sssp_bfs(meshlink_handle_t *mesh) { of nodes behind it. */ - bool indirect = n->status.indirect || e->options & OPTION_INDIRECT; - if(e->to->status.visited - && (!e->to->status.indirect || indirect) && (e->to->distance != n->distance + 1 || e->weight >= e->to->prevedge->weight)) { continue; } e->to->status.visited = true; - e->to->status.indirect = indirect; e->to->nexthop = (n->nexthop == mesh->self) ? e->to : n->nexthop; e->to->prevedge = e; - e->to->via = indirect ? n->via : e->to; - e->to->options = e->options; e->to->distance = n->distance + 1; if(!e->to->status.reachable || (e->to->address.sa.sa_family == AF_UNSPEC && e->address.sa.sa_family != AF_UNKNOWN)) { @@ -236,14 +227,14 @@ static void check_reachability(meshlink_handle_t *mesh) { if(!n->status.reachable) { update_node_udp(mesh, n, NULL); n->status.broadcast = false; - n->options = 0; - utcp_offline(n->utcp, true); } else if(n->connection) { - if(n->connection->outgoing) { + if(n->connection->status.initiator) { send_req_key(mesh, n); } + } - utcp_offline(n->utcp, false); + if(n->utcp) { + utcp_offline(n->utcp, !n->status.reachable); } } }