FILE *f;
// Use first Address statement in own host config file
- snprintf(filename,PATH_MAX, "%s" SLASH "hosts" SLASH "%s", mesh->confbase, name);
+ snprintf(filename, sizeof filename, "%s" SLASH "hosts" SLASH "%s", mesh->confbase, name);
scan_for_hostname(filename, &hostname, &port);
- scan_for_hostname(mesh->meshlink_conf, &hostname, &port);
if(hostname)
goto done;
return NULL;
return val;
}
-static FILE *fopenmask(const char *filename, const char *mode, mode_t perms) {
- mode_t mask = umask(0);
- perms &= ~mask;
- umask(~perms);
- FILE *f = fopen(filename, mode);
-#ifdef HAVE_FCHMOD
- if((perms & 0444) && f)
- fchmod(fileno(f), perms);
-#endif
- umask(mask);
- return f;
-}
static bool try_bind(int port) {
struct addrinfo *ai = NULL;
return false;
}
- if(mkdir(mesh->confbase, 0777) && errno != EEXIST) {
- fprintf(stderr, "Could not create directory %s: %s\n", mesh->confbase, strerror(errno));
- return false;
- }
-
- if(mkdir(mesh->hosts_dir, 0777) && errno != EEXIST) {
- fprintf(stderr, "Could not create directory %s: %s\n", mesh->hosts_dir, strerror(errno));
- return false;
- }
+ char filename[PATH_MAX];
+ snprintf(filename, sizeof filename, "%s" SLASH "meshlink.conf", mesh->confbase);
- FILE *f = fopen(mesh->meshlink_conf, "w");
+ FILE *f = fopen(filename, "w");
if(!f) {
- fprintf(stderr, "Could not create file %s: %s\n", mesh->meshlink_conf, strerror(errno));
+ fprintf(stderr, "Could not create file %s: %s\n", filename, strerror(errno));
return false;
}
fprintf(f, "Name = %s\n", name);
- char filename[PATH_MAX];
- snprintf(filename,PATH_MAX, "%s" SLASH "%s", mesh->hosts_dir, name);
+ snprintf(filename, sizeof filename, "%s" SLASH "hosts" SLASH "%s", mesh->confbase, name);
FILE *fh = fopen(filename, "w");
if(!fh) {
fprintf(stderr, "Could not create file %s: %s\n", filename, strerror(errno));
+ fclose(f);
return false;
}
return false;
}
- snprintf(filename,PATH_MAX, "%s" SLASH "%s", mesh->hosts_dir, value);
+ snprintf(filename, sizeof filename, "%s" SLASH "hosts" SLASH "%s", mesh->confbase, value);
f = fopen(filename, "w");
if(!f) {
fclose(f);
}
- // Generate our key and send a copy to the server
- ecdsa_t *key = ecdsa_generate();
- if(!key)
- return false;
-
- char *b64key = ecdsa_get_base64_public_key(key);
+ char *b64key = ecdsa_get_base64_public_key(mesh->self->connection->ecdsa);
if(!b64key)
return false;
- snprintf(filename,PATH_MAX, "%s" SLASH "ecdsa_key.priv", mesh->confbase);
- f = fopenmask(filename, "w", 0600);
-
- if(!ecdsa_write_pem_private_key(key, f)) {
- fprintf(stderr, "Error writing private key!\n");
- ecdsa_free(key);
- fclose(f);
- return false;
- }
-
- fclose(f);
-
fprintf(fh, "ECDSAPublicKey = %s\n", b64key);
+ fprintf(fh, "Port = %s\n", mesh->myport);
+
+ fclose(fh);
sptps_send_record(&(mesh->sptps), 1, b64key, strlen(b64key));
free(b64key);
- ecdsa_free(key);
-
- check_port(mesh);
+ free(mesh->self->name);
+ free(mesh->self->connection->name);
+ mesh->self->name = xstrdup(name);
+ mesh->self->connection->name = xstrdup(name);
fprintf(stderr, "Configuration stored in: %s\n", mesh->confbase);
+ load_all_nodes(mesh);
+
return true;
}
-static bool invitation_send(void *handle, uint8_t type, const char *data, size_t len) {
+static bool invitation_send(void *handle, uint8_t type, const void *data, size_t len) {
meshlink_handle_t* mesh = handle;
while(len) {
int result = send(mesh->sock, data, len, 0);
return true;
}
-static bool invitation_receive(void *handle, uint8_t type, const char *msg, uint16_t len) {
+static bool invitation_receive(void *handle, uint8_t type, const void *msg, uint16_t len) {
meshlink_handle_t* mesh = handle;
switch(type) {
case SPTPS_HANDSHAKE:
}
static bool meshlink_setup(meshlink_handle_t *mesh) {
-
if(mkdir(mesh->confbase, 0777) && errno != EEXIST) {
fprintf(stderr, "Could not create directory %s: %s\n", mesh->confbase, strerror(errno));
return false;
}
- snprintf(mesh->hosts_dir, sizeof mesh->hosts_dir, "%s" SLASH "hosts", mesh->confbase);
+ char filename[PATH_MAX];
+ snprintf(filename, sizeof filename, "%s" SLASH "hosts", mesh->confbase);
- if(mkdir(mesh->hosts_dir, 0777) && errno != EEXIST) {
- fprintf(stderr, "Could not create directory %s: %s\n", mesh->hosts_dir, strerror(errno));
+ if(mkdir(filename, 0777) && errno != EEXIST) {
+ fprintf(stderr, "Could not create directory %s: %s\n", filename, strerror(errno));
return false;
}
- snprintf(mesh->meshlink_conf, sizeof mesh->meshlink_conf, "%s" SLASH "meshlink.conf", mesh->confbase);
+ snprintf(filename, sizeof filename, "%s" SLASH "meshlink.conf", mesh->confbase);
- if(!access(mesh->meshlink_conf, F_OK)) {
- fprintf(stderr, "Configuration file %s already exists!\n", mesh->meshlink_conf);
+ if(!access(filename, F_OK)) {
+ fprintf(stderr, "Configuration file %s already exists!\n", filename);
return false;
}
- FILE *f = fopen(mesh->meshlink_conf, "w");
+ FILE *f = fopen(filename, "w");
if(!f) {
- fprintf(stderr, "Could not create file %s: %s\n", mesh->meshlink_conf, strerror(errno));
+ fprintf(stderr, "Could not create file %s: %s\n", filename, strerror(errno));
return 1;
}
}
size_t meshlink_get_all_nodes(meshlink_handle_t *mesh, meshlink_node_t **nodes, size_t nmemb) {
- return 0;
+ size_t i = 0;
+
+ for splay_each(node_t, n, mesh->nodes) {
+ if(i < nmemb)
+ nodes[i] = (meshlink_node_t *)n;
+ i++;
+ }
+
+ return i;
}
char *meshlink_sign(meshlink_handle_t *mesh, const char *data, size_t len) {
return false;
}
-char *meshlink_invite(meshlink_handle_t *mesh, const char *name) {
- // Check validity of the new node's name
- if(!check_id(name)) {
- fprintf(stderr, "Invalid name for node.\n");
- return NULL;
- }
-
- // Ensure no host configuration file with that name exists
- char filename [PATH_MAX];
- snprintf(filename,PATH_MAX, "%s" SLASH "hosts" SLASH "%s", mesh->confbase, name);
- if(!access(filename, F_OK)) {
- fprintf(stderr, "A host config file for %s already exists!\n", name);
- return NULL;
- }
-
- // If a daemon is running, ensure no other nodes know about this name
-
- //TODO: original tinc code connects to tincd cli and makes this check. How we want to implement this here ?
- //bool found = false;
- //if(connect_tincd(false)) {
- // sendline(fd, "%d %d", CONTROL, REQ_DUMP_NODES);
-
- // while(recvline(fd, line, sizeof line)) {
- // char node[4096];
- // int code, req;
- // if(sscanf(line, "%d %d %s", &code, &req, node) != 3)
- // break;
- // if(!strcmp(node, name))
- // found = true;
- // }
-
- // if(found) {
- // fprintf(stderr, "A node with name %s is already known!\n", name);
- // return 1;
- // }
- //}
-
- char hash[64];
+static bool refresh_invitation_key(meshlink_handle_t *mesh) {
+ char filename[PATH_MAX];
- snprintf(filename,PATH_MAX, "%s" SLASH "invitations", mesh->confbase);
+ snprintf(filename, sizeof filename, "%s" SLASH "invitations", mesh->confbase);
if(mkdir(filename, 0700) && errno != EEXIST) {
fprintf(stderr, "Could not create directory %s: %s\n", filename, strerror(errno));
return NULL;
continue;
char invname[PATH_MAX];
struct stat st;
- snprintf(invname,PATH_MAX, "%s" SLASH "%s", filename, ent->d_name);
+ snprintf(invname, sizeof invname, "%s" SLASH "%s", filename, ent->d_name);
if(!stat(invname, &st)) {
- if(deadline < st.st_mtime)
+ if(mesh->invitation_key && deadline < st.st_mtime)
count++;
else
unlink(invname);
if(errno) {
fprintf(stderr, "Error while reading directory %s: %s\n", filename, strerror(errno));
closedir(dir);
- return NULL;
+ return false;
}
closedir(dir);
- ecdsa_t *key;
- snprintf(filename,PATH_MAX, "%s" SLASH "invitations" SLASH "ecdsa_key.priv", mesh->confbase);
+ snprintf(filename, sizeof filename, "%s" SLASH "invitations" SLASH "ecdsa_key.priv", mesh->confbase);
// Remove the key if there are no outstanding invitations.
- if(!count)
+ if(!count) {
unlink(filename);
+ if(mesh->invitation_key) {
+ ecdsa_free(mesh->invitation_key);
+ mesh->invitation_key = NULL;
+ }
+ }
+
+ if(mesh->invitation_key)
+ return true;
// Create a new key if necessary.
FILE *f = fopen(filename, "r");
return NULL;
}
- key = ecdsa_generate();
- if(!key) {
+ mesh->invitation_key = ecdsa_generate();
+ if(!mesh->invitation_key) {
fprintf(stderr, "Could not generate a new key!\n");
return NULL;
}
return NULL;
}
chmod(filename, 0600);
- ecdsa_write_pem_private_key(key, f);
+ ecdsa_write_pem_private_key(mesh->invitation_key, f);
fclose(f);
- //TODO: handle this in meshlink
- //if(connect_tincd(false))
- // sendline(fd, "%d %d", CONTROL, REQ_RELOAD);
} else {
- key = ecdsa_read_pem_private_key(f);
+ mesh->invitation_key = ecdsa_read_pem_private_key(f);
fclose(f);
- if(!key)
+ if(!mesh->invitation_key)
fprintf(stderr, "Could not read private key from %s\n", filename);
}
- if(!key)
+ return mesh->invitation_key;
+}
+
+char *meshlink_invite(meshlink_handle_t *mesh, const char *name) {
+ // Check validity of the new node's name
+ if(!check_id(name)) {
+ fprintf(stderr, "Invalid name for node.\n");
+ return NULL;
+ }
+
+ // Ensure no host configuration file with that name exists
+ char filename[PATH_MAX];
+ snprintf(filename, sizeof filename, "%s" SLASH "hosts" SLASH "%s", mesh->confbase, name);
+ if(!access(filename, F_OK)) {
+ fprintf(stderr, "A host config file for %s already exists!\n", name);
+ return NULL;
+ }
+
+ // Ensure no other nodes know about this name
+ if(meshlink_get_node(mesh, name)) {
+ fprintf(stderr, "A node with name %s is already known!\n", name);
+ return NULL;
+ }
+
+ if(!refresh_invitation_key(mesh))
return NULL;
+ char hash[64];
+
// Create a hash of the key.
- char *fingerprint = ecdsa_get_base64_public_key(key);
+ char *fingerprint = ecdsa_get_base64_public_key(mesh->invitation_key);
sha512(fingerprint, strlen(fingerprint), hash);
b64encode_urlsafe(hash, hash, 18);
b64encode_urlsafe(cookie, cookie, 18);
// Create a file containing the details of the invitation.
- snprintf(filename,PATH_MAX, "%s" SLASH "invitations" SLASH "%s", mesh->confbase, cookiehash);
+ snprintf(filename, sizeof filename, "%s" SLASH "invitations" SLASH "%s", mesh->confbase, cookiehash);
int ifd = open(filename, O_RDWR | O_CREAT | O_EXCL, 0600);
if(!ifd) {
fprintf(stderr, "Could not create invitation file %s: %s\n", filename, strerror(errno));
return NULL;
}
- f = fdopen(ifd, "w");
+ FILE *f = fdopen(ifd, "w");
if(!f)
abort();
fprintf(f, "ConnectTo = %s\n", mesh->self->name);
// Copy Broadcast and Mode
- FILE *tc = fopen(mesh->meshlink_conf, "r");
+ snprintf(filename, sizeof filename, "%s" SLASH "meshlink.conf", mesh->confbase);
+ FILE *tc = fopen(filename, "r");
if(tc) {
char buf[1024];
while(fgets(buf, sizeof buf, tc)) {
}
}
fclose(tc);
+ } else {
+ fprintf(stderr, "Could not create %s: %s\n", filename, strerror(errno));
+ return NULL;
}
fprintf(f, "#---------------------------------------------------------------#\n");
fprintf(f, "Name = %s\n", mesh->self->name);
- char filename2[PATH_MAX];
- snprintf(filename2,PATH_MAX, "%s" SLASH "hosts" SLASH "%s", mesh->confbase, mesh->self->name);
- fcopy(f, filename2);
+ snprintf(filename, sizeof filename, "%s" SLASH "hosts" SLASH "%s", mesh->confbase, mesh->self->name);
+ fcopy(f, filename);
fclose(f);
// Create an URL from the local address, key hash and cookie
}
bool meshlink_join(meshlink_handle_t *mesh, const char *invitation) {
+ //TODO: think of a better name for this variable, or of a different way to tokenize the invitation URL.
+ char copy[strlen(invitation) + 1];
+ strcpy(copy, invitation);
+ // Split the invitation URL into hostname, port, key hash and cookie.
- // Make sure confbase exists and is accessible.
- if(mkdir(mesh->confbase, 0777) && errno != EEXIST) {
- fprintf(stderr, "Could not create directory %s: %s\n", mesh->confbase, strerror(errno));
- return false;
- }
-
- if(access(mesh->confbase, R_OK | W_OK | X_OK)) {
- fprintf(stderr, "No permission to write in directory %s: %s\n", mesh->confbase, strerror(errno));
- return false;
- }
-
- // TODO: Either remove or reintroduce netname in meshlink
- // If a netname or explicit configuration directory is specified, check for an existing meshlink.conf.
- //if((mesh->netname || confbasegiven) && !access(meshlink_conf, F_OK)) {
- // fprintf(stderr, "Configuration file %s already exists!\n", meshlink_conf);
- // return 1;
- //}
-
- char *slash = strchr(invitation, '/');
+ char *slash = strchr(copy, '/');
if(!slash)
goto invalid;
if(strlen(slash) != 48)
goto invalid;
- char *address = invitation;
+ char *address = copy;
char *port = NULL;
if(*address == '[') {
address++;
*port++ = 0;
}
- if(!mesh->myport || !*port)
+ if(!*port)
port = "655";
if(!b64decode(slash, mesh->hash, 18) || !b64decode(slash + 24, mesh->cookie, 18))
fprintf(stderr, "Connected to %s port %s...\n", address, port);
// Tell him we have an invitation, and give him our throw-away key.
- int len = snprintf(invitation, sizeof invitation, "0 ?%s %d.%d\n", b64key, PROT_MAJOR, PROT_MINOR);
- if(len <= 0 || len >= sizeof invitation)
- abort();
+
+ mesh->blen = 0;
if(!sendline(mesh->sock, "0 ?%s %d.%d", b64key, PROT_MAJOR, 1)) {
fprintf(stderr, "Error sending request to %s port %s: %s\n", address, port, strerror(errno));
// Check if the hash of the key he gave us matches the hash in the URL.
char *fingerprint = mesh->line + 2;
char hishash[64];
- if(!sha512(fingerprint, strlen(fingerprint), hishash)) {
+ if(sha512(fingerprint, strlen(fingerprint), hishash)) {
fprintf(stderr, "Could not create hash\n%s\n", mesh->line + 2);
return false;
}
if(!sptps_receive_data(&mesh->sptps, mesh->buffer, mesh->blen))
return false;
+ int len;
+
while((len = recv(mesh->sock, mesh->line, sizeof mesh->line, 0))) {
if(len < 0) {
if(errno == EINTR)
projects / meshlink / blobdiff