X-Git-Url: http://git.meshlink.io/?a=blobdiff_plain;f=src%2Finvitation.c;h=d027e0d980f16c2f9a885cf3b1ba813cca98a34f;hb=2a18ac20efd8ed3e1fd76f11f6f816e77c099e47;hp=5175ba92003c07be3c2a6a37833bc9d786db2126;hpb=9699f08afc6420d2bdac1063ea6789b585aaf42e;p=meshlink

diff --git a/src/invitation.c b/src/invitation.c
index 5175ba92..d027e0d9 100644
--- a/src/invitation.c
+++ b/src/invitation.c
@@ -1,6 +1,6 @@
 /*
     invitation.c -- Create and accept invitations
-    Copyright (C) 2013 Guus Sliepen <guus@tinc-vpn.org>
+    Copyright (C) 2014 Guus Sliepen <guus@meshlink.io>
 
     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
@@ -24,9 +24,7 @@
 #include "ecdsa.h"
 #include "ecdsagen.h"
 #include "invitation.h"
-#include "names.h"
 #include "netutl.h"
-#include "rsagen.h"
 #include "sptps.h"
 #include "tincctl.h"
 #include "utils.h"
@@ -34,6 +32,48 @@
 
 int addressfamily = AF_UNSPEC;
 
+static void scan_for_hostname(const char *filename, char **hostname, char **port) {
+	if(!filename || (*hostname && *port))
+		return;
+
+	FILE *f = fopen(filename, "r");
+	if(!f)
+		return;
+
+	while(fgets(line, sizeof line, f)) {
+		if(!rstrip(line))
+			continue;
+		char *p = line, *q;
+		p += strcspn(p, "\t =");
+		if(!*p)
+			continue;
+		q = p + strspn(p, "\t ");
+		if(*q == '=')
+			q += 1 + strspn(q + 1, "\t ");
+		*p = 0;
+		p = q + strcspn(q, "\t ");
+		if(*p)
+			*p++ = 0;
+		p += strspn(p, "\t ");
+		p[strcspn(p, "\t ")] = 0;
+
+		if(!*port && !strcasecmp(line, "Port")) {
+			*port = xstrdup(q);
+		} else if(!*hostname && !strcasecmp(line, "Address")) {
+			*hostname = xstrdup(q);
+			if(*p) {
+				free(*port);
+				*port = xstrdup(p);
+			}
+		}
+
+		if(*hostname && *port)
+			break;
+	}
+
+	fclose(f);
+}
+
 char *get_my_hostname() {
 	char *hostname = NULL;
 	char *port = NULL;
@@ -44,39 +84,8 @@ char *get_my_hostname() {
 	// Use first Address statement in own host config file
 	if(check_id(name)) {
 		xasprintf(&filename, "%s" SLASH "hosts" SLASH "%s", confbase, name);
-		FILE *f = fopen(filename, "r");
-		if(f) {
-			while(fgets(line, sizeof line, f)) {
-				if(!rstrip(line))
-					continue;
-				char *p = line, *q;
-				p += strcspn(p, "\t =");
-				if(!*p)
-					continue;
-				q = p + strspn(p, "\t ");
-				if(*q == '=')
-					q += 1 + strspn(q + 1, "\t ");
-				*p = 0;
-				p = q + strcspn(q, "\t ");
-				if(*p)
-					*p++ = 0;
-				p += strspn(p, "\t ");
-				p[strcspn(p, "\t ")] = 0;
-				if(!port && !strcasecmp(line, "Port")) {
-					port = xstrdup(q);
-					continue;
-				}
-				if(strcasecmp(line, "Address"))
-					continue;
-				hostname = xstrdup(q);
-				if(*p) {
-					free(port);
-					port = xstrdup(p);
-				}
-				break;
-			}
-			fclose(f);
-		}
+		scan_for_hostname(filename, &hostname, &port);
+		scan_for_hostname(tinc_conf, &hostname, &port);
 	}
 
 	if(hostname)
@@ -130,12 +139,19 @@ char *get_my_hostname() {
 		}
 	}
 
+	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));
@@ -249,7 +265,7 @@ int cmd_invite(int argc, char *argv[]) {
 		}
 	}
 
-	char hash[25];
+	char hash[64];
 
 	xasprintf(&filename, "%s" SLASH "invitations", confbase);
 	if(mkdir(filename, 0700) && errno != EEXIST) {
@@ -328,22 +344,24 @@ int cmd_invite(int argc, char *argv[]) {
 		}
 		chmod(filename, 0600);
 		ecdsa_write_pem_private_key(key, f);
+		fclose(f);
+
+		if(connect_tincd(false))
+			sendline(fd, "%d %d", CONTROL, REQ_RELOAD);
 	} else {
 		key = ecdsa_read_pem_private_key(f);
+		fclose(f);
 		if(!key)
 			fprintf(stderr, "Could not read private key from %s\n", filename);
 	}
-	fclose(f);
+
 	free(filename);
 	if(!key)
 		return 1;
 
 	// Create a hash of the key.
 	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.
@@ -352,10 +370,10 @@ int cmd_invite(int argc, char *argv[]) {
 
 	// 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);
@@ -368,7 +386,6 @@ int cmd_invite(int argc, char *argv[]) {
 		free(filename);
 		return 1;
 	}
-	free(filename);
 	f = fdopen(ifd, "w");
 	if(!f)
 		abort();
@@ -381,18 +398,35 @@ int cmd_invite(int argc, char *argv[]) {
 	if(netname)
 		fprintf(f, "NetName = %s\n", netname);
 	fprintf(f, "ConnectTo = %s\n", myname);
-	// TODO: copy Broadcast and Mode
+
+	// Copy Broadcast and Mode
+	FILE *tc = fopen(tinc_conf, "r");
+	if(tc) {
+		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]))) {
+				fputs(buf, f);
+				// Make sure there is a newline character.
+				if(!strchr(buf, '\n'))
+					fputc('\n', f);
+			}
+		}
+		fclose(tc);
+	}
+
 	fprintf(f, "#---------------------------------------------------------------#\n");
 	fprintf(f, "Name = %s\n", myname);
 
-	xasprintf(&filename, "%s" SLASH "hosts" SLASH "%s", confbase, myname);
-	fcopy(f, filename);
+	char *filename2;
+	xasprintf(&filename2, "%s" SLASH "hosts" SLASH "%s", confbase, myname);
+	fcopy(f, filename2);
 	fclose(f);
+	free(filename2);
 
 	// Create an URL from the local address, key hash and cookie
-	printf("%s/%s%s\n", address, hash, cookie);
-	free(filename);
-	free(address);
+	char *url;
+	xasprintf(&url, "%s/%s%s", address, hash, cookie);
 
 	return 0;
 }
@@ -507,13 +541,6 @@ static bool finalize_join(void) {
 	char temp_netname[32];
 
 make_names:
-	if(!confbasegiven) {
-		free(confbase);
-		confbase = NULL;
-	}
-
-	make_names();
-
 	free(tinc_conf);
 	free(hosts_dir);
 
@@ -522,7 +549,7 @@ make_names:
 
 	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.
@@ -681,24 +708,12 @@ make_names:
 	sptps_send_record(&sptps, 1, b64key, strlen(b64key));
 	free(b64key);
 
-
-	rsa_t *rsa = rsa_generate(2048, 0x1001);
-	xasprintf(&filename, "%s" SLASH "rsa_key.priv", confbase);
-	f = fopenmask(filename, "w", 0600);
-
-	rsa_write_pem_private_key(rsa, f);
-	fclose(f);
-
-	rsa_write_pem_public_key(rsa, fh);
-	fclose(fh);
-
 	ecdsa_free(key);
-	rsa_free(rsa);
 
 	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));
@@ -719,9 +734,10 @@ ask_netname:
 
 		free(newbase);
 		netname = line;
-		make_names();
 	}
 
+	fprintf(stderr, "Configuration stored in: %s\n", confbase);
+
 	return true;
 }
 
@@ -778,11 +794,6 @@ int cmd_join(int argc, char *argv[]) {
 	}
 
 	// 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;
@@ -805,10 +816,8 @@ int cmd_join(int argc, char *argv[]) {
 	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));
@@ -899,12 +908,9 @@ int cmd_join(int argc, char *argv[]) {
 
 	// 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)) {
-		fprintf(stderr, "Could not create digest\n%s\n", line + 2);
+	char hishash[64];
+	if(!sha512(fingerprint, strlen(fingerprint), hishash)) {
+		fprintf(stderr, "Could not create hash\n%s\n", line + 2);
 		return 1;
 	}
 	if(memcmp(hishash, hash, 18)) {