/*
invitation.c -- Create and accept invitations
- Copyright (C) 2013 Guus Sliepen <guus@tinc-vpn.org>
+ Copyright (C) 2013-2014 Guus Sliepen <guus@tinc-vpn.org>
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
#include "utils.h"
#include "xalloc.h"
+#include "ed25519/sha512.h"
+
int addressfamily = AF_UNSPEC;
static void scan_for_hostname(const char *filename, char **hostname, char **port) {
}
}
+ if(!tty) {
+ if(!hostname) {
+ fprintf(stderr, "Could not determine the external address or hostname. Please set Address manually.\n");
+ return NULL;
+ }
+ goto save;
+ }
+
again:
- printf("Please enter your host's external address or hostname");
+ fprintf(stderr, "Please enter your host's external address or hostname");
if(hostname)
- printf(" [%s]", hostname);
- printf(": ");
- fflush(stdout);
+ fprintf(stderr, " [%s]", hostname);
+ fprintf(stderr, ": ");
if(!fgets(line, sizeof line, stdin)) {
fprintf(stderr, "Error while reading stdin: %s\n", strerror(errno));
else
xasprintf(&hostport, "%s:%s", hostname, port);
} else {
- hostport = hostname;
- hostname = NULL;
+ if(strchr(hostname, ':'))
+ xasprintf(&hostport, "[%s]", hostname);
+ else
+ hostport = xstrdup(hostname);
}
free(hostname);
}
free(filename);
- // If a daemon is running, ensure no other nodes now about this name
+ // If a daemon is running, ensure no other nodes know about this name
bool found = false;
if(connect_tincd(false)) {
sendline(fd, "%d %d", CONTROL, REQ_DUMP_NODES);
}
}
- char hash[25];
-
xasprintf(&filename, "%s" SLASH "invitations", confbase);
if(mkdir(filename, 0700) && errno != EEXIST) {
fprintf(stderr, "Could not create directory %s: %s\n", filename, strerror(errno));
free(filename);
ecdsa_t *key;
- xasprintf(&filename, "%s" SLASH "invitations" SLASH "ecdsa_key.priv", confbase);
+ xasprintf(&filename, "%s" SLASH "invitations" SLASH "ed25519_key.priv", confbase);
// Remove the key if there are no outstanding invitations.
if(!count)
return 1;
// Create a hash of the key.
+ char hash[64];
char *fingerprint = ecdsa_get_base64_public_key(key);
- digest_t *digest = digest_open_by_name("sha256", 18);
- if(!digest)
- abort();
- digest_create(digest, fingerprint, strlen(fingerprint), hash);
+ sha512(fingerprint, strlen(fingerprint), hash);
b64encode_urlsafe(hash, hash, 18);
// Create a random cookie for this invitation.
// Create a filename that doesn't reveal the cookie itself
char buf[18 + strlen(fingerprint)];
- char cookiehash[25];
+ char cookiehash[64];
memcpy(buf, cookie, 18);
memcpy(buf + 18, fingerprint, sizeof buf - 18);
- digest_create(digest, buf, sizeof buf, cookiehash);
+ sha512(buf, sizeof buf, cookiehash);
b64encode_urlsafe(cookiehash, cookiehash, 18);
b64encode_urlsafe(cookie, cookie, 18);
char buf[1024];
while(fgets(buf, sizeof buf, tc)) {
if((!strncasecmp(buf, "Mode", 4) && strchr(" \t=", buf[4]))
- || (!strncasecmp(buf, "Broadcast", 9) && strchr(" \t=", buf[9])))
+ || (!strncasecmp(buf, "Broadcast", 9) && strchr(" \t=", buf[9]))) {
fputs(buf, f);
+ // Make sure there is a newline character.
+ if(!strchr(buf, '\n'))
+ fputc('\n', f);
+ }
}
fclose(tc);
}
if(!access(tinc_conf, F_OK)) {
fprintf(stderr, "Configuration file %s already exists!\n", tinc_conf);
- if(!tty || confbasegiven)
+ if(confbasegiven)
return false;
// Generate a random netname, ask for a better one later.
FILE *fh = fopen(filename, "w");
if(!fh) {
fprintf(stderr, "Could not create file %s: %s\n", filename, strerror(errno));
+ fclose(f);
return false;
}
if(!b64key)
return false;
- xasprintf(&filename, "%s" SLASH "ecdsa_key.priv", confbase);
+ xasprintf(&filename, "%s" SLASH "ed25519_key.priv", confbase);
f = fopenmask(filename, "w", 0600);
if(!ecdsa_write_pem_private_key(key, f)) {
fclose(f);
- fprintf(fh, "ECDSAPublicKey = %s\n", b64key);
+ fprintf(fh, "Ed25519PublicKey = %s\n", b64key);
sptps_send_record(&sptps, 1, b64key, strlen(b64key));
free(b64key);
+ ecdsa_free(key);
-
+#ifndef DISABLE_LEGACY
rsa_t *rsa = rsa_generate(2048, 0x1001);
xasprintf(&filename, "%s" SLASH "rsa_key.priv", confbase);
f = fopenmask(filename, "w", 0600);
rsa_write_pem_public_key(rsa, fh);
fclose(fh);
- ecdsa_free(key);
rsa_free(rsa);
+#endif
check_port(name);
ask_netname:
- if(ask_netname) {
+ if(ask_netname && tty) {
fprintf(stderr, "Enter a new netname: ");
if(!fgets(line, sizeof line, stdin)) {
fprintf(stderr, "Error while reading stdin: %s\n", strerror(errno));
make_names();
}
+ fprintf(stderr, "Configuration stored in: %s\n", confbase);
+
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) {
while(len) {
int result = send(sock, data, len, 0);
if(result == -1 && errno == EINTR)
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) {
switch(type) {
case SPTPS_HANDSHAKE:
return sptps_send_record(&sptps, 0, cookie, sizeof cookie);
if(argc > 1) {
invitation = argv[1];
} else {
- if(tty) {
- printf("Enter invitation URL: ");
- fflush(stdout);
- }
+ if(tty)
+ fprintf(stderr, "Enter invitation URL: ");
errno = EPIPE;
if(!fgets(line, sizeof line, stdin)) {
fprintf(stderr, "Error while reading stdin: %s\n", strerror(errno));
if(!port || !*port)
port = "655";
- if(!b64decode(slash, hash, 18) || !b64decode(slash + 24, cookie, 18))
+ if(!b64decode(slash, hash, 24) || !b64decode(slash + 24, cookie, 24))
goto invalid;
// Generate a throw-away key for the invitation.
// Check if the hash of the key he gave us matches the hash in the URL.
char *fingerprint = line + 2;
- digest_t *digest = digest_open_by_name("sha256", 18);
- if(!digest)
- abort();
- char hishash[18];
- if(!digest_create(digest, fingerprint, strlen(fingerprint), hishash)) {
+ char hishash[64];
+ if(sha512(fingerprint, strlen(fingerprint), hishash)) {
fprintf(stderr, "Could not create digest\n%s\n", line + 2);
return 1;
}