#include "connection.h"
#include "devtools.h"
#include "ecdsa.h"
-#include "edge.h"
-#include "graph.h"
#include "logger.h"
#include "meshlink_internal.h"
#include "meta.h"
extern bool node_write_devclass(meshlink_handle_t *mesh, node_t *n);
bool send_id(meshlink_handle_t *mesh, connection_t *c) {
- return send_request(mesh, c, NULL, "%d %s %d.%d %s", ID, mesh->self->name, PROT_MAJOR, PROT_MINOR, mesh->appname);
-}
-
-static bool commit_invitation(meshlink_handle_t *mesh, connection_t *c, const void *data) {
- // Check if the node is known
- node_t *n = lookup_node(mesh, c->name);
-
- if(n) {
- if(n->status.blacklisted) {
- logger(mesh, MESHLINK_ERROR, "Invitee %s is blacklisted", c->name);
- } else {
- logger(mesh, MESHLINK_ERROR, "Invitee %s already known", c->name);
- }
-
- return false;
- }
-
- // Create a new node
- n = new_node();
- n->name = xstrdup(c->name);
- n->devclass = DEV_CLASS_UNKNOWN;
- n->ecdsa = ecdsa_set_public_key(data);
- n->submesh = c->submesh;
-
- // Remember its current address
- node_add_recent_address(mesh, n, &c->address);
-
- if(!node_write_config(mesh, n, true) || !config_sync(mesh, "current")) {
- logger(mesh, MESHLINK_ERROR, "Error writing configuration file for invited node %s!\n", c->name);
- free_node(n);
- return false;
-
- }
-
- node_add(mesh, n);
-
- logger(mesh, MESHLINK_INFO, "Key successfully received from %s", c->name);
-
- //TODO: callback to application to inform of an accepted invitation
-
- sptps_send_record(&c->sptps, 1, "", 0);
-
- return true;
-}
-
-static bool process_invitation(meshlink_handle_t *mesh, connection_t *c, const void *data) {
- // Recover the filename from the cookie and the key
- char *fingerprint = ecdsa_get_base64_public_key(mesh->invitation_key);
- char hash[64];
- char hashbuf[18 + strlen(fingerprint)];
- char cookie[25];
- memcpy(hashbuf, data, 18);
- memcpy(hashbuf + 18, fingerprint, sizeof(hashbuf) - 18);
- sha512(hashbuf, sizeof(hashbuf), hash);
- b64encode_urlsafe(hash, cookie, 18);
- free(fingerprint);
-
- config_t config;
-
- if(!invitation_read(mesh, "current", cookie, &config, mesh->config_key)) {
- logger(mesh, MESHLINK_ERROR, "Error while trying to read invitation file\n");
- return false;
- }
-
- // Read the new node's Name from the file
- packmsg_input_t in = {config.buf, config.len};
- packmsg_get_uint32(&in); // skip version
- free(c->name);
- c->name = packmsg_get_str_dup(&in);
-
- // Check if the file contains Sub-Mesh information
- char *submesh_name = packmsg_get_str_dup(&in);
-
- if(!strcmp(submesh_name, CORE_MESH)) {
- free(submesh_name);
- c->submesh = NULL;
- } else {
- if(!check_id(submesh_name)) {
- logger(mesh, MESHLINK_ERROR, "Invalid invitation file %s\n", cookie);
- free(submesh_name);
- return false;
- }
-
- c->submesh = lookup_or_create_submesh(mesh, submesh_name);
- free(submesh_name);
-
- if(!c->submesh) {
- logger(mesh, MESHLINK_ERROR, "Unknown submesh in invitation file %s\n", cookie);
- return false;
- }
- }
-
- if(mesh->inviter_commits_first && !commit_invitation(mesh, c, (const char *)data + 18)) {
- return false;
- }
-
- if(mesh->inviter_commits_first) {
- devtool_set_inviter_commits_first(true);
- }
-
- // Send the node the contents of the invitation file
- sptps_send_record(&c->sptps, 0, config.buf, config.len);
-
- config_free(&config);
-
- c->status.invitation_used = true;
-
- logger(mesh, MESHLINK_INFO, "Invitation %s successfully sent to %s", cookie, c->name);
- return true;
-}
-
-static bool receive_invitation_sptps(void *handle, uint8_t type, const void *data, uint16_t len) {
- connection_t *c = handle;
- meshlink_handle_t *mesh = c->mesh;
-
- // Extend the time for the invitation exchange upon receiving a valid message
- c->last_ping_time = mesh->loop.now.tv_sec;
-
- if(type == SPTPS_HANDSHAKE) {
- // The peer should send its cookie first.
- return true;
- }
-
- if(mesh->inviter_commits_first) {
- if(type == 2 && len == 18 + 32 && !c->status.invitation_used) {
- return process_invitation(mesh, c, data);
- }
- } else {
- if(type == 0 && len == 18 && !c->status.invitation_used) {
- return process_invitation(mesh, c, data);
- } else if(type == 1 && len == 32 && c->status.invitation_used) {
- return commit_invitation(mesh, c, data);
- }
- }
-
- return false;
+ return send_request(mesh, c, "%d %s %d.%d %s", ID, mesh->self->name, PROT_MAJOR, PROT_MINOR, mesh->appname);
}
bool id_h(meshlink_handle_t *mesh, connection_t *c, const char *request) {
return false;
}
- /* Check if this is an invitation */
-
- if(name[0] == '?') {
- if(!mesh->invitation_key) {
- logger(mesh, MESHLINK_ERROR, "Got invitation from %s but we don't have an invitation key", c->name);
- return false;
- }
-
- c->ecdsa = ecdsa_set_base64_public_key(name + 1);
-
- if(!c->ecdsa) {
- logger(mesh, MESHLINK_ERROR, "Got bad invitation from %s", c->name);
- return false;
- }
-
- c->status.invitation = true;
- char *mykey = ecdsa_get_base64_public_key(mesh->invitation_key);
-
- if(!mykey) {
- return false;
- }
-
- if(!send_request(mesh, c, NULL, "%d %s", ACK, mykey)) {
- return false;
- }
-
- free(mykey);
-
- c->protocol_minor = 2;
- c->allow_request = 1;
- c->last_ping_time = mesh->loop.now.tv_sec;
-
- return sptps_start(&c->sptps, c, false, false, mesh->invitation_key, c->ecdsa, meshlink_invitation_label, sizeof(meshlink_invitation_label), send_meta_sptps, receive_invitation_sptps);
- }
-
/* Check if identity is a valid name */
if(!check_id(name)) {
}
c->last_ping_time = mesh->loop.now.tv_sec;
- return send_request(mesh, c, NULL, "%d %s %d %x", ACK, mesh->myport, mesh->devclass, OPTION_PMTU_DISCOVERY | (PROT_MINOR << 24));
-}
-
-static void send_everything(meshlink_handle_t *mesh, connection_t *c) {
- /* Send all known subnets and edges */
-
- for splay_each(node_t, n, mesh->nodes) {
- for inner_splay_each(edge_t, e, n->edge_tree) {
- send_add_edge(mesh, c, e, 0);
- }
- }
+ return send_request(mesh, c, "%d %s %d %x", ACK, mesh->myport, mesh->devclass, OPTION_PMTU_DISCOVERY | (PROT_MINOR << 24));
}
bool ack_h(meshlink_handle_t *mesh, connection_t *c, const char *request) {
n = new_node();
n->name = xstrdup(c->name);
node_add(mesh, n);
- } else {
- if(n->connection) {
- /* Oh dear, we already have a connection to this node. */
- logger(mesh, MESHLINK_INFO, "Established a second connection with %s, closing old connection", n->connection->name);
-
- if(n->connection->outgoing) {
- if(c->outgoing) {
- logger(mesh, MESHLINK_WARNING, "Two outgoing connections to the same node!");
- } else {
- c->outgoing = n->connection->outgoing;
- }
-
- n->connection->outgoing = NULL;
- }
-
- /* Remove the edge before terminating the connection, to prevent a graph update. */
- edge_del(mesh, n->connection->edge);
- n->connection->edge = NULL;
-
- terminate_connection(mesh, n->connection, false);
- }
}
n->devclass = devclass;
mesh->meta_status_cb(mesh, (meshlink_node_t *)n, true);
}
- /* Terminate any connections to this node that are not activated yet */
-
- for list_each(connection_t, other, mesh->connections) {
- if(!other->status.active && !strcmp(other->name, c->name)) {
- if(other->outgoing) {
- if(c->outgoing) {
- logger(mesh, MESHLINK_WARNING, "Two outgoing connections to the same node!");
- } else {
- c->outgoing = other->outgoing;
- }
-
- other->outgoing = NULL;
- }
-
- logger(mesh, MESHLINK_DEBUG, "Terminating pending second connection with %s", n->name);
- terminate_connection(mesh, other, false);
- }
- }
-
- /* Send him everything we know */
-
- send_everything(mesh, c);
-
- /* Create an edge_t for this connection */
-
- assert(devclass >= 0 && devclass < DEV_CLASS_COUNT);
-
- c->edge = new_edge();
- c->edge->from = mesh->self;
- c->edge->to = n;
- sockaddrcpy_setport(&c->edge->address, &c->address, atoi(hisport));
- c->edge->weight = mesh->dev_class_traits[devclass].edge_weight;
- c->edge->connection = c;
-
- node_add_recent_address(mesh, n, &c->address);
- edge_add(mesh, c->edge);
-
- /* Notify everyone of the new edge */
-
- send_add_edge(mesh, mesh->everyone, c->edge, 0);
-
- /* Run MST and SSSP algorithms */
-
- graph(mesh);
+ send_add_edge(mesh, c, 0);
+ n->status.reachable = true;
+ update_node_status(mesh, c->node);
/* Request a session key to jump start UDP traffic */
projects / meshlink-tiny / blobdiff