X-Git-Url: http://git.meshlink.io/?a=blobdiff_plain;f=src%2Fnode.c;h=3e4dec957f98f410b3912dc9dcf9904dca64fc4c;hb=a1b50920b9a52f86ca6e33fcb24d7fa34313a1ee;hp=2add29d697f550f198f654c633ba9244c7ea1afc;hpb=df3220a1549f992cbf4a9b6e67c1e67b69896c7d;p=meshlink diff --git a/src/node.c b/src/node.c index 2add29d6..3e4dec95 100644 --- a/src/node.c +++ b/src/node.c @@ -1,7 +1,6 @@ /* node.c -- node tree management - Copyright (C) 2001-2005 Guus Sliepen , - 2001-2005 Ivo Timmermans + Copyright (C) 2014 Guus Sliepen , This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -13,181 +12,120 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - - $Id$ + You should have received a copy of the GNU General Public License along + with this program; if not, write to the Free Software Foundation, Inc., + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #include "system.h" -#include "avl_tree.h" +#include "hash.h" #include "logger.h" +#include "meshlink_internal.h" #include "net.h" #include "netutl.h" #include "node.h" +#include "splay_tree.h" #include "utils.h" #include "xalloc.h" -avl_tree_t *node_tree; /* Known nodes, sorted by name */ -avl_tree_t *node_udp_tree; /* Known nodes, sorted by address and port */ - -node_t *myself; +static hash_t *node_udp_cache; -static int node_compare(const node_t *a, const node_t *b) -{ +static int node_compare(const node_t *a, const node_t *b) { return strcmp(a->name, b->name); } -static int node_udp_compare(const node_t *a, const node_t *b) -{ - int result; - - cp(); - - result = sockaddrcmp(&a->address, &b->address); - - if(result) - return result; - - return (a->name && b->name) ? strcmp(a->name, b->name) : 0; -} - -void init_nodes(void) -{ - cp(); - - node_tree = avl_alloc_tree((avl_compare_t) node_compare, (avl_action_t) free_node); - node_udp_tree = avl_alloc_tree((avl_compare_t) node_udp_compare, NULL); +void init_nodes(meshlink_handle_t *mesh) { + mesh->nodes = splay_alloc_tree((splay_compare_t) node_compare, (splay_action_t) free_node); + node_udp_cache = hash_alloc(0x100, sizeof(sockaddr_t)); } -void exit_nodes(void) -{ - cp(); - - avl_delete_tree(node_udp_tree); - avl_delete_tree(node_tree); +void exit_nodes(meshlink_handle_t *mesh) { + hash_free(node_udp_cache); + splay_delete_tree(mesh->nodes); } -node_t *new_node(void) -{ - node_t *n = xmalloc_and_zero(sizeof(*n)); +node_t *new_node(void) { + node_t *n = xzalloc(sizeof *n); - cp(); - - n->subnet_tree = new_subnet_tree(); + if(replaywin) n->late = xzalloc(replaywin); n->edge_tree = new_edge_tree(); - n->queue = list_alloc((list_action_t) free); - EVP_CIPHER_CTX_init(&n->packet_ctx); n->mtu = MTU; n->maxmtu = MTU; return n; } -void free_node(node_t *n) -{ - cp(); +void free_node(node_t *n) { + if(n->edge_tree) + free_edge_tree(n->edge_tree); - if(n->queue) - list_delete_list(n->queue); + sockaddrfree(&n->address); - if(n->name) - free(n->name); + ecdsa_free(n->ecdsa); + sptps_stop(&n->sptps); + + if(n->mtutimeout.cb) + abort(); if(n->hostname) free(n->hostname); - if(n->key) - free(n->key); - - if(n->subnet_tree) - free_subnet_tree(n->subnet_tree); - - if(n->edge_tree) - free_edge_tree(n->edge_tree); - - sockaddrfree(&n->address); + if(n->name) + free(n->name); - EVP_CIPHER_CTX_cleanup(&n->packet_ctx); + if(n->late) + free(n->late); - if(n->mtuevent) - event_del(n->mtuevent); - free(n); } -void node_add(node_t *n) -{ - cp(); - - avl_insert(node_tree, n); +void node_add(meshlink_handle_t *mesh, node_t *n) { + n->mesh = mesh; + splay_insert(mesh->nodes, n); } -void node_del(node_t *n) -{ - avl_node_t *node, *next; - edge_t *e; - subnet_t *s; +void node_del(meshlink_handle_t *mesh, node_t *n) { + timeout_del(&mesh->loop, &n->mtutimeout); - cp(); + for splay_each(edge_t, e, n->edge_tree) + edge_del(mesh, e); - for(node = n->subnet_tree->head; node; node = next) { - next = node->next; - s = node->data; - subnet_del(n, s); - } - - for(node = n->edge_tree->head; node; node = next) { - next = node->next; - e = node->data; - edge_del(e); - } - - avl_delete(node_tree, n); + splay_delete(mesh->nodes, n); } -node_t *lookup_node(char *name) -{ - node_t n = {0}; +node_t *lookup_node(meshlink_handle_t *mesh, char *name) { + node_t n = {NULL}; - cp(); - n.name = name; - return avl_search(node_tree, &n); + return splay_search(mesh->nodes, &n); } -node_t *lookup_node_udp(const sockaddr_t *sa) -{ - node_t n = {0}; - - cp(); - - n.address = *sa; - n.name = NULL; - - return avl_search(node_udp_tree, &n); +node_t *lookup_node_udp(meshlink_handle_t *mesh, const sockaddr_t *sa) { + return hash_search(node_udp_cache, sa); } -void dump_nodes(void) -{ - avl_node_t *node; - node_t *n; - - cp(); - - logger(LOG_DEBUG, _("Nodes:")); - - for(node = node_tree->head; node; node = node->next) { - n = node->data; - logger(LOG_DEBUG, _(" %s at %s cipher %d digest %d maclength %d compression %d options %lx status %04x nexthop %s via %s pmtu %d (min %d max %d)"), - n->name, n->hostname, n->cipher ? n->cipher->nid : 0, - n->digest ? n->digest->type : 0, n->maclength, n->compression, - n->options, *(uint32_t *)&n->status, n->nexthop ? n->nexthop->name : "-", - n->via ? n->via->name : "-", n->mtu, n->minmtu, n->maxmtu); +void update_node_udp(meshlink_handle_t *mesh, node_t *n, const sockaddr_t *sa) { + if(n == mesh->self) { + logger(DEBUG_ALWAYS, LOG_WARNING, "Trying to update UDP address of mesh->self!"); + return; } - logger(LOG_DEBUG, _("End of nodes.")); + hash_insert(node_udp_cache, &n->address, NULL); + + if(sa) { + n->address = *sa; + n->sock = 0; + for(int i = 0; i < mesh->listen_sockets; i++) { + if(mesh->listen_socket[i].sa.sa.sa_family == sa->sa.sa_family) { + n->sock = i; + break; + } + } + hash_insert(node_udp_cache, sa, n); + free(n->hostname); + n->hostname = sockaddr2hostname(&n->address); + logger(DEBUG_PROTOCOL, LOG_DEBUG, "UDP address of %s set to %s", n->name, n->hostname); + } }