#include "utils.h"
#include "xalloc.h"
-#ifdef HAVE_MINGW
-#define SCRIPTEXTENSION ".bat"
-#else
-#define SCRIPTEXTENSION ""
-#endif
-
int addressfamily = AF_UNSPEC;
char *get_my_hostname() {
// If that doesn't work, guess externally visible hostname
fprintf(stderr, "Trying to discover externally visible hostname...\n");
- struct addrinfo *ai = str2addrinfo("ifconfig.me", "80", SOCK_STREAM);
- static const char request[] = "GET /host HTTP/1.0\r\n\r\n";
- if(ai) {
- int s = socket(ai->ai_family, ai->ai_socktype, ai->ai_protocol);
+ struct addrinfo *ai = str2addrinfo("tinc-vpn.org", "80", SOCK_STREAM);
+ struct addrinfo *aip = ai;
+ static const char request[] = "GET http://tinc-vpn.org/host.cgi HTTP/1.0\r\n\r\n";
+
+ while(aip) {
+ int s = socket(aip->ai_family, aip->ai_socktype, aip->ai_protocol);
if(s >= 0) {
- if(connect(s, ai->ai_addr, ai->ai_addrlen)) {
+ if(connect(s, aip->ai_addr, aip->ai_addrlen)) {
closesocket(s);
s = -1;
}
hostname = xstrdup(p + 1);
}
closesocket(s);
+ if(hostname)
+ break;
}
- freeaddrinfo(ai);
+ aip = aip->ai_next;
+ continue;
}
+ if(ai)
+ freeaddrinfo(ai);
+
// Check that the hostname is reasonable
if(hostname) {
for(char *p = hostname; *p; p++) {
- if(isalnum(*p) || *p == '-' || *p == '.')
+ if(isalnum(*p) || *p == '-' || *p == '.' || *p == ':')
continue;
// If not, forget it.
free(hostname);
if(!f)
abort();
+ // Get the local address
+ char *address = get_my_hostname();
+
// Fill in the details.
fprintf(f, "Name = %s\n", argv[1]);
if(netname)
fclose(f);
// Create an URL from the local address, key hash and cookie
- char *address = get_my_hostname();
printf("%s/%s%s\n", address, hash, cookie);
free(filename);
free(address);
if(!netname)
netname = grep(data, "NetName");
+ bool ask_netname = false;
+ char temp_netname[32];
+
make_names:
if(!confbasegiven) {
free(confbase);
fprintf(stderr, "Configuration file %s already exists!\n", tinc_conf);
if(!tty || confbasegiven)
return false;
-ask_netname:
- fprintf(stderr, "Enter a new netname: ");
- if(!fgets(line, sizeof line, stdin)) {
- fprintf(stderr, "Error while reading stdin: %s\n", strerror(errno));
- return false;
- }
- if(!*line || *line == '\n')
- goto ask_netname;
- line[strlen(line) - 1] = 0;
- netname = line;
+ // Generate a random netname, ask for a better one later.
+ ask_netname = true;
+ snprintf(temp_netname, sizeof temp_netname, "join_%x", rand());
+ netname = temp_netname;
goto make_names;
}
- if(mkdir(confbase, 0755) && errno != EEXIST) {
+ if(mkdir(confbase, 0777) && errno != EEXIST) {
fprintf(stderr, "Could not create directory %s: %s\n", confbase, strerror(errno));
return false;
}
- if(mkdir(hosts_dir, 0755) && errno != EEXIST) {
+ if(mkdir(hosts_dir, 0777) && errno != EEXIST) {
fprintf(stderr, "Could not create directory %s: %s\n", hosts_dir, strerror(errno));
return false;
}
return false;
xasprintf(&filename, "%s" SLASH "ecdsa_key.priv", confbase);
- f = fopen(filename, "w");
-
-#ifdef HAVE_FCHMOD
- /* Make it unreadable for others. */
- fchmod(fileno(f), 0600);
-#endif
+ f = fopenmask(filename, "w", 0600);
if(!ecdsa_write_pem_private_key(key, f)) {
fprintf(stderr, "Error writing private key!\n");
rsa_t *rsa = rsa_generate(2048, 0x1001);
xasprintf(&filename, "%s" SLASH "rsa_key.priv", confbase);
- f = fopen(filename, "w");
-
-#ifdef HAVE_FCHMOD
- /* Make it unreadable for others. */
- fchmod(fileno(f), 0600);
-#endif
+ f = fopenmask(filename, "w", 0600);
rsa_write_pem_private_key(rsa, f);
fclose(f);
ecdsa_free(key);
rsa_free(rsa);
- fprintf(stderr, "Invitation succesfully accepted.\n");
- shutdown(sock, SHUT_RDWR);
- success = true;
+ check_port(name);
+
+ask_netname:
+ if(ask_netname) {
+ fprintf(stderr, "Enter a new netname: ");
+ if(!fgets(line, sizeof line, stdin)) {
+ fprintf(stderr, "Error while reading stdin: %s\n", strerror(errno));
+ return false;
+ }
+ if(!*line || *line == '\n')
+ goto ask_netname;
+
+ line[strlen(line) - 1] = 0;
+
+ char *newbase;
+ xasprintf(&newbase, CONFDIR SLASH "tinc" SLASH "%s", line);
+ if(rename(confbase, newbase)) {
+ fprintf(stderr, "Error trying to rename %s to %s: %s\n", confbase, newbase, strerror(errno));
+ free(newbase);
+ goto ask_netname;
+ }
+
+ free(newbase);
+ netname = line;
+ make_names();
+ }
return true;
}
+
static bool invitation_send(void *handle, uint8_t type, const char *data, size_t len) {
while(len) {
int result = send(sock, data, len, 0);
case 1:
return finalize_join();
+ case 2:
+ fprintf(stderr, "Invitation succesfully accepted.\n");
+ shutdown(sock, SHUT_RDWR);
+ success = true;
+ break;
+
default:
return false;
}
return 1;
}
- // Make sure confdir exists.
- if(mkdir(confdir, 0755) && errno != EEXIST) {
- fprintf(stderr, "Could not create directory %s: %s\n", CONFDIR, strerror(errno));
+ // Make sure confbase exists and is accessible.
+ if(strcmp(confdir, confbase) && mkdir(confdir, 0755) && errno != EEXIST) {
+ fprintf(stderr, "Could not create directory %s: %s\n", confdir, strerror(errno));
+ return 1;
+ }
+
+ if(mkdir(confbase, 0777) && errno != EEXIST) {
+ fprintf(stderr, "Could not create directory %s: %s\n", confbase, strerror(errno));
+ return 1;
+ }
+
+ if(access(confbase, R_OK | W_OK | X_OK)) {
+ fprintf(stderr, "No permission to write in directory %s: %s\n", confbase, strerror(errno));
+ return 1;
+ }
+
+ // If a netname or explicit configuration directory is specified, check for an existing tinc.conf.
+ if((netname || confbasegiven) && !access(tinc_conf, F_OK)) {
+ fprintf(stderr, "Configuration file %s already exists!\n", tinc_conf);
return 1;
}
return 1;
}
- // Check if the hash of the key he have us matches the hash in the URL.
+ // 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)
projects / tinc / blobdiff