Import Upstream version 1.0.35

This commit is contained in:
Guus Sliepen 2019-08-26 13:44:49 +02:00
parent b28bb7b29b
commit a04a7bcd67
44 changed files with 4173 additions and 2323 deletions

View file

@ -1,7 +1,7 @@
# Makefile.in generated by automake 1.15.1 from Makefile.am.
# Makefile.in generated by automake 1.16.1 from Makefile.am.
# @configure_input@
# Copyright (C) 1994-2017 Free Software Foundation, Inc.
# Copyright (C) 1994-2018 Free Software Foundation, Inc.
# This Makefile.in is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
@ -178,7 +178,29 @@ am__v_at_0 = @
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./$(DEPDIR)/event.Po ./$(DEPDIR)/fake-getaddrinfo.Po \
./$(DEPDIR)/fake-getnameinfo.Po ./$(DEPDIR)/getopt.Po \
./$(DEPDIR)/getopt1.Po ./$(DEPDIR)/graph.Po \
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@ -354,8 +376,8 @@ Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
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$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
@ -482,50 +504,56 @@ mostlyclean-compile:
distclean-compile:
-rm -f *.tab.c
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@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/dropin.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/dummy_device.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/edge.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/event.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/fake-getaddrinfo.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/fake-getnameinfo.Po@am__quote@
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@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/meta.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/multicast_device.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/net.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/net_packet.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/net_setup.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/net_socket.Po@am__quote@
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@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/uml_device.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/utils.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/vde_device.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@bsd/$(DEPDIR)/device.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@bsd/$(DEPDIR)/tunemu.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@cygwin/$(DEPDIR)/device.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@linux/$(DEPDIR)/device.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@mingw/$(DEPDIR)/device.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@solaris/$(DEPDIR)/device.Po@am__quote@
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@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/conf.Po@am__quote@ # am--include-marker
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@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/utils.Po@am__quote@ # am--include-marker
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/vde_device.Po@am__quote@ # am--include-marker
@AMDEP_TRUE@@am__include@ @am__quote@bsd/$(DEPDIR)/device.Po@am__quote@ # am--include-marker
@AMDEP_TRUE@@am__include@ @am__quote@bsd/$(DEPDIR)/tunemu.Po@am__quote@ # am--include-marker
@AMDEP_TRUE@@am__include@ @am__quote@cygwin/$(DEPDIR)/device.Po@am__quote@ # am--include-marker
@AMDEP_TRUE@@am__include@ @am__quote@linux/$(DEPDIR)/device.Po@am__quote@ # am--include-marker
@AMDEP_TRUE@@am__include@ @am__quote@mingw/$(DEPDIR)/device.Po@am__quote@ # am--include-marker
@AMDEP_TRUE@@am__include@ @am__quote@solaris/$(DEPDIR)/device.Po@am__quote@ # am--include-marker
$(am__depfiles_remade):
@$(MKDIR_P) $(@D)
@echo '# dummy' >$@-t && $(am__mv) $@-t $@
am--depfiles: $(am__depfiles_remade)
.c.o:
@am__fastdepCC_TRUE@ $(AM_V_CC)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.o$$||'`;\
@ -595,7 +623,10 @@ cscopelist-am: $(am__tagged_files)
distclean-tags:
-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
distdir: $(DISTFILES)
distdir: $(BUILT_SOURCES)
$(MAKE) $(AM_MAKEFLAGS) distdir-am
distdir-am: $(DISTFILES)
@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
list='$(DISTFILES)'; \
@ -677,7 +708,50 @@ clean: clean-am
clean-am: clean-generic clean-sbinPROGRAMS mostlyclean-am
distclean: distclean-am
-rm -rf ./$(DEPDIR) bsd/$(DEPDIR) cygwin/$(DEPDIR) linux/$(DEPDIR) mingw/$(DEPDIR) solaris/$(DEPDIR)
-rm -f ./$(DEPDIR)/avl_tree.Po
-rm -f ./$(DEPDIR)/conf.Po
-rm -f ./$(DEPDIR)/connection.Po
-rm -f ./$(DEPDIR)/dropin.Po
-rm -f ./$(DEPDIR)/dummy_device.Po
-rm -f ./$(DEPDIR)/edge.Po
-rm -f ./$(DEPDIR)/event.Po
-rm -f ./$(DEPDIR)/fake-getaddrinfo.Po
-rm -f ./$(DEPDIR)/fake-getnameinfo.Po
-rm -f ./$(DEPDIR)/getopt.Po
-rm -f ./$(DEPDIR)/getopt1.Po
-rm -f ./$(DEPDIR)/graph.Po
-rm -f ./$(DEPDIR)/list.Po
-rm -f ./$(DEPDIR)/logger.Po
-rm -f ./$(DEPDIR)/meta.Po
-rm -f ./$(DEPDIR)/multicast_device.Po
-rm -f ./$(DEPDIR)/net.Po
-rm -f ./$(DEPDIR)/net_packet.Po
-rm -f ./$(DEPDIR)/net_setup.Po
-rm -f ./$(DEPDIR)/net_socket.Po
-rm -f ./$(DEPDIR)/netutl.Po
-rm -f ./$(DEPDIR)/node.Po
-rm -f ./$(DEPDIR)/pidfile.Po
-rm -f ./$(DEPDIR)/process.Po
-rm -f ./$(DEPDIR)/protocol.Po
-rm -f ./$(DEPDIR)/protocol_auth.Po
-rm -f ./$(DEPDIR)/protocol_edge.Po
-rm -f ./$(DEPDIR)/protocol_key.Po
-rm -f ./$(DEPDIR)/protocol_misc.Po
-rm -f ./$(DEPDIR)/protocol_subnet.Po
-rm -f ./$(DEPDIR)/proxy.Po
-rm -f ./$(DEPDIR)/raw_socket_device.Po
-rm -f ./$(DEPDIR)/route.Po
-rm -f ./$(DEPDIR)/subnet.Po
-rm -f ./$(DEPDIR)/tincd.Po
-rm -f ./$(DEPDIR)/uml_device.Po
-rm -f ./$(DEPDIR)/utils.Po
-rm -f ./$(DEPDIR)/vde_device.Po
-rm -f bsd/$(DEPDIR)/device.Po
-rm -f bsd/$(DEPDIR)/tunemu.Po
-rm -f cygwin/$(DEPDIR)/device.Po
-rm -f linux/$(DEPDIR)/device.Po
-rm -f mingw/$(DEPDIR)/device.Po
-rm -f solaris/$(DEPDIR)/device.Po
-rm -f Makefile
distclean-am: clean-am distclean-compile distclean-generic \
distclean-tags
@ -723,7 +797,50 @@ install-ps-am:
installcheck-am: installcheck-sbinPROGRAMS
maintainer-clean: maintainer-clean-am
-rm -rf ./$(DEPDIR) bsd/$(DEPDIR) cygwin/$(DEPDIR) linux/$(DEPDIR) mingw/$(DEPDIR) solaris/$(DEPDIR)
-rm -f ./$(DEPDIR)/avl_tree.Po
-rm -f ./$(DEPDIR)/conf.Po
-rm -f ./$(DEPDIR)/connection.Po
-rm -f ./$(DEPDIR)/dropin.Po
-rm -f ./$(DEPDIR)/dummy_device.Po
-rm -f ./$(DEPDIR)/edge.Po
-rm -f ./$(DEPDIR)/event.Po
-rm -f ./$(DEPDIR)/fake-getaddrinfo.Po
-rm -f ./$(DEPDIR)/fake-getnameinfo.Po
-rm -f ./$(DEPDIR)/getopt.Po
-rm -f ./$(DEPDIR)/getopt1.Po
-rm -f ./$(DEPDIR)/graph.Po
-rm -f ./$(DEPDIR)/list.Po
-rm -f ./$(DEPDIR)/logger.Po
-rm -f ./$(DEPDIR)/meta.Po
-rm -f ./$(DEPDIR)/multicast_device.Po
-rm -f ./$(DEPDIR)/net.Po
-rm -f ./$(DEPDIR)/net_packet.Po
-rm -f ./$(DEPDIR)/net_setup.Po
-rm -f ./$(DEPDIR)/net_socket.Po
-rm -f ./$(DEPDIR)/netutl.Po
-rm -f ./$(DEPDIR)/node.Po
-rm -f ./$(DEPDIR)/pidfile.Po
-rm -f ./$(DEPDIR)/process.Po
-rm -f ./$(DEPDIR)/protocol.Po
-rm -f ./$(DEPDIR)/protocol_auth.Po
-rm -f ./$(DEPDIR)/protocol_edge.Po
-rm -f ./$(DEPDIR)/protocol_key.Po
-rm -f ./$(DEPDIR)/protocol_misc.Po
-rm -f ./$(DEPDIR)/protocol_subnet.Po
-rm -f ./$(DEPDIR)/proxy.Po
-rm -f ./$(DEPDIR)/raw_socket_device.Po
-rm -f ./$(DEPDIR)/route.Po
-rm -f ./$(DEPDIR)/subnet.Po
-rm -f ./$(DEPDIR)/tincd.Po
-rm -f ./$(DEPDIR)/uml_device.Po
-rm -f ./$(DEPDIR)/utils.Po
-rm -f ./$(DEPDIR)/vde_device.Po
-rm -f bsd/$(DEPDIR)/device.Po
-rm -f bsd/$(DEPDIR)/tunemu.Po
-rm -f cygwin/$(DEPDIR)/device.Po
-rm -f linux/$(DEPDIR)/device.Po
-rm -f mingw/$(DEPDIR)/device.Po
-rm -f solaris/$(DEPDIR)/device.Po
-rm -f Makefile
maintainer-clean-am: distclean-am maintainer-clean-generic
@ -743,19 +860,19 @@ uninstall-am: uninstall-sbinPROGRAMS
.MAKE: install-am install-strip
.PHONY: CTAGS GTAGS TAGS all all-am check check-am clean clean-generic \
clean-sbinPROGRAMS cscopelist-am ctags ctags-am distclean \
distclean-compile distclean-generic distclean-tags distdir dvi \
dvi-am html html-am info info-am install install-am \
install-data install-data-am install-dvi install-dvi-am \
install-exec install-exec-am install-html install-html-am \
install-info install-info-am install-man install-pdf \
install-pdf-am install-ps install-ps-am install-sbinPROGRAMS \
install-strip installcheck installcheck-am \
installcheck-sbinPROGRAMS installdirs maintainer-clean \
maintainer-clean-generic mostlyclean mostlyclean-compile \
mostlyclean-generic pdf pdf-am ps ps-am tags tags-am uninstall \
uninstall-am uninstall-sbinPROGRAMS
.PHONY: CTAGS GTAGS TAGS all all-am am--depfiles check check-am clean \
clean-generic clean-sbinPROGRAMS cscopelist-am ctags ctags-am \
distclean distclean-compile distclean-generic distclean-tags \
distdir dvi dvi-am html html-am info info-am install \
install-am install-data install-data-am install-dvi \
install-dvi-am install-exec install-exec-am install-html \
install-html-am install-info install-info-am install-man \
install-pdf install-pdf-am install-ps install-ps-am \
install-sbinPROGRAMS install-strip installcheck \
installcheck-am installcheck-sbinPROGRAMS installdirs \
maintainer-clean maintainer-clean-generic mostlyclean \
mostlyclean-compile mostlyclean-generic pdf pdf-am ps ps-am \
tags tags-am uninstall uninstall-am uninstall-sbinPROGRAMS
.PRECIOUS: Makefile

View file

@ -81,18 +81,9 @@ config_t *new_config(void) {
}
void free_config(config_t *cfg) {
if(cfg->variable) {
free(cfg->variable);
}
if(cfg->value) {
free(cfg->value);
}
if(cfg->file) {
free(cfg->file);
}
free(cfg->variable);
free(cfg->value);
free(cfg->file);
free(cfg);
}
@ -204,7 +195,7 @@ bool get_config_address(const config_t *cfg, struct addrinfo **result) {
}
bool get_config_subnet(const config_t *cfg, subnet_t **result) {
subnet_t subnet = {};
subnet_t subnet = {0};
if(!cfg) {
return false;
@ -432,7 +423,11 @@ bool read_server_config(void) {
// And we try to read the ones that end with ".conf"
if(l > 5 && !strcmp(".conf", & ep->d_name[ l - 5 ])) {
snprintf(fname, sizeof(fname), "%s/%s", dname, ep->d_name);
if((size_t)snprintf(fname, sizeof(fname), "%s/%s", dname, ep->d_name) >= sizeof(fname)) {
logger(LOG_ERR, "Pathname too long: %s/%s", dname, ep->d_name);
return false;
}
x = read_config_file(config_tree, fname);
}
}
@ -573,7 +568,12 @@ FILE *ask_and_open(const char *filename, const char *what) {
#endif
/* The directory is a relative path or a filename. */
getcwd(directory, sizeof(directory));
snprintf(abspath, sizeof(abspath), "%s/%s", directory, fn);
if((size_t)snprintf(abspath, sizeof(abspath), "%s/%s", directory, fn) >= sizeof(abspath)) {
fprintf(stderr, "Pathname too long: %s/%s\n", directory, fn);
return NULL;
}
fn = abspath;
}

View file

@ -42,7 +42,8 @@ typedef struct connection_status_t {
unsigned int decryptin: 1; /* 1 if we have to decrypt incoming traffic */
unsigned int mst: 1; /* 1 if this connection is part of a minimum spanning tree */
unsigned int proxy_passed: 1; /* 1 if we are connecting via a proxy and we have finished talking with it */
unsigned int unused: 22;
unsigned int tarpit: 1; /* 1 if the connection should be added to the tarpit */
unsigned int unused: 21;
} connection_status_t;
#include "edge.h"

View file

@ -37,6 +37,8 @@ static bool setup_device(void) {
}
static void close_device(void) {
free(device);
free(iface);
}
static bool read_packet(vpn_packet_t *packet) {

View file

@ -2,10 +2,10 @@
* fake library for ssh
*
* This file includes getaddrinfo(), freeaddrinfo() and gai_strerror().
* These funtions are defined in rfc2133.
* These functions are defined in rfc2133.
*
* But these functions are not implemented correctly. The minimum subset
* is implemented for ssh use only. For exapmle, this routine assumes
* is implemented for ssh use only. For example, this routine assumes
* that ai_family is AF_INET. Don't use it for another purpose.
*/

View file

@ -2,10 +2,10 @@
* fake library for ssh
*
* This file includes getnameinfo().
* These funtions are defined in rfc2133.
* These functions are defined in rfc2133.
*
* But these functions are not implemented correctly. The minimum subset
* is implemented for ssh use only. For exapmle, this routine assumes
* is implemented for ssh use only. For example, this routine assumes
* that ai_family is AF_INET. Don't use it for another purpose.
*/

View file

@ -83,7 +83,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#endif
#endif
#if defined (WIN32) && !defined (__CYGWIN32__32)
#if defined (WIN32) && !defined (__CYGWIN32__)
/* It's not Unix, really. See? Capital letters. */
#include <windows.h>
#define getpid() GetCurrentProcessId()

View file

@ -274,9 +274,9 @@ static void sssp_bfs(void) {
n->mtuevent = NULL;
}
xasprintf(&envp[0], "NETNAME=%s", netname ? : "");
xasprintf(&envp[1], "DEVICE=%s", device ? : "");
xasprintf(&envp[2], "INTERFACE=%s", iface ? : "");
xasprintf(&envp[0], "NETNAME=%s", netname ? netname : "");
xasprintf(&envp[1], "DEVICE=%s", device ? device : "");
xasprintf(&envp[2], "INTERFACE=%s", iface ? iface : "");
xasprintf(&envp[3], "NODE=%s", n->name);
sockaddr2str(&n->address, &address, &port);
xasprintf(&envp[4], "REMOTEADDRESS=%s", address);

View file

@ -180,6 +180,22 @@ static int build_fdset(fd_set *readset, fd_set *writeset) {
return max;
}
/* Put a misbehaving connection in the tarpit */
void tarpit(int fd) {
static int pits[10] = {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1};
static int next_pit = 0;
if(pits[next_pit] != -1) {
closesocket(pits[next_pit]);
}
pits[next_pit++] = fd;
if(next_pit >= (int)(sizeof pits / sizeof pits[0])) {
next_pit = 0;
}
}
/*
Terminate a connection:
- Close the socket
@ -203,7 +219,11 @@ void terminate_connection(connection_t *c, bool report) {
}
if(c->socket) {
closesocket(c->socket);
if(c->status.tarpit) {
tarpit(c->socket);
} else {
closesocket(c->socket);
}
}
if(c->edge) {
@ -299,6 +319,7 @@ static void check_dead_connections(void) {
closesocket(c->socket);
do_outgoing_connection(c);
} else {
c->status.tarpit = true;
terminate_connection(c, false);
}
}
@ -380,6 +401,7 @@ static void check_network_activity(fd_set *readset, fd_set *writeset) {
if(FD_ISSET(c->socket, readset)) {
if(!receive_meta(c)) {
c->status.tarpit = true;
terminate_connection(c, c->status.active);
continue;
}

View file

@ -150,6 +150,7 @@ extern void flush_queue(struct node_t *n);
extern bool read_rsa_public_key(struct connection_t *c);
extern void send_mtu_probe(struct node_t *n);
extern void load_all_subnets(void);
extern void tarpit(int fd);
#ifndef HAVE_MINGW
#define closesocket(s) close(s)

View file

@ -239,7 +239,7 @@ static bool read_rsa_private_key(void) {
return false;
}
#if !defined(HAVE_MINGW) && !defined(HAVE___CYGWIN32__)
#if !defined(HAVE_MINGW) && !defined(HAVE_CYGWIN)
struct stat s;
if(!fstat(fileno(fp), &s)) {
@ -388,8 +388,8 @@ static bool setup_myself(void) {
char *address = NULL;
char *proxy = NULL;
char *space;
char *envp[5] = {};
struct addrinfo *ai, *aip, hint = {};
char *envp[5] = {0};
struct addrinfo *ai, *aip, hint = {0};
bool choice;
int i, err;
int replaywin_int;
@ -852,15 +852,15 @@ static bool setup_myself(void) {
}
/* Run tinc-up script to further initialize the tap interface */
xasprintf(&envp[0], "NETNAME=%s", netname ? : "");
xasprintf(&envp[1], "DEVICE=%s", device ? : "");
xasprintf(&envp[2], "INTERFACE=%s", iface ? : "");
xasprintf(&envp[0], "NETNAME=%s", netname ? netname : "");
xasprintf(&envp[1], "DEVICE=%s", device ? device : "");
xasprintf(&envp[2], "INTERFACE=%s", iface ? iface : "");
xasprintf(&envp[3], "NAME=%s", myself->name);
#ifdef HAVE_MINGW
Sleep(1000);
#endif
#ifdef HAVE___CYGWIN32__
#ifdef HAVE_CYGWIN
sleep(1);
#endif
execute_script("tinc-up", envp);
@ -1068,7 +1068,7 @@ bool setup_network(void) {
void close_network_connections(void) {
avl_node_t *node, *next;
connection_t *c;
char *envp[5] = {};
char *envp[5] = {0};
int i;
for(node = connection_tree->head; node; node = next) {
@ -1099,9 +1099,9 @@ void close_network_connections(void) {
close(listen_socket[i].udp);
}
xasprintf(&envp[0], "NETNAME=%s", netname ? : "");
xasprintf(&envp[1], "DEVICE=%s", device ? : "");
xasprintf(&envp[2], "INTERFACE=%s", iface ? : "");
xasprintf(&envp[0], "NETNAME=%s", netname ? netname : "");
xasprintf(&envp[1], "DEVICE=%s", device ? device : "");
xasprintf(&envp[2], "INTERFACE=%s", iface ? iface : "");
xasprintf(&envp[3], "NAME=%s", myself->name);
exit_requests();

View file

@ -639,6 +639,9 @@ void setup_outgoing_connection(outgoing_t *outgoing) {
new connection
*/
bool handle_new_meta_connection(int sock) {
static const int max_accept_burst = 10;
static int last_accept_burst;
static int last_accept_time;
connection_t *c;
sockaddr_t sa;
int fd;
@ -651,6 +654,22 @@ bool handle_new_meta_connection(int sock) {
return false;
}
if(last_accept_time == now) {
last_accept_burst++;
if(last_accept_burst >= max_accept_burst) {
if(last_accept_burst == max_accept_burst) {
ifdebug(CONNECTIONS) logger(LOG_WARNING, "Throttling incoming connections");
}
tarpit(fd);
return false;
}
} else {
last_accept_burst = 0;
last_accept_time = now;
}
sockaddrunmap(&sa);
c = new_connection();
@ -672,7 +691,6 @@ bool handle_new_meta_connection(int sock) {
connection_add(c);
c->allow_request = ID;
send_id(c);
return true;
}

View file

@ -33,7 +33,7 @@ bool hostnames = false;
Return NULL on failure.
*/
struct addrinfo *str2addrinfo(const char *address, const char *service, int socktype) {
struct addrinfo *ai = NULL, hint = {};
struct addrinfo *ai = NULL, hint = {0};
int err;
hint.ai_family = addressfamily;
@ -55,7 +55,7 @@ struct addrinfo *str2addrinfo(const char *address, const char *service, int sock
}
sockaddr_t str2sockaddr(const char *address, const char *port) {
struct addrinfo *ai = NULL, hint = {};
struct addrinfo *ai = NULL, hint = {0};
sockaddr_t result;
int err;

View file

@ -140,7 +140,7 @@ void node_del(node_t *n) {
}
node_t *lookup_node(char *name) {
node_t n = {};
node_t n = {0};
n.name = name;
@ -148,7 +148,7 @@ node_t *lookup_node(char *name) {
}
node_t *lookup_node_udp(const sockaddr_t *sa) {
node_t n = {};
node_t n = {0};
n.address = *sa;
n.name = NULL;

View file

@ -193,7 +193,7 @@ void exit_requests(void) {
}
bool seen_request(char *request) {
past_request_t *new, p = {};
past_request_t *new, p = {0};
p.request = request;

View file

@ -60,7 +60,7 @@ bool id_h(connection_t *c) {
/* Check if identity is a valid name */
if(!check_id(name)) {
if(!check_id(name) || !strcmp(name, myself->name)) {
logger(LOG_ERR, "Got bad %s from %s (%s): %s", "ID", c->name,
c->hostname, "invalid name");
return false;
@ -96,6 +96,11 @@ bool id_h(connection_t *c) {
}
c->allow_request = ACK;
if(!c->outgoing) {
send_id(c);
}
return send_ack(c);
}
@ -115,6 +120,10 @@ bool id_h(connection_t *c) {
c->allow_request = METAKEY;
if(!c->outgoing) {
send_id(c);
}
return send_metakey(c);
}
@ -301,7 +310,8 @@ bool metakey_h(connection_t *c) {
c->inbudget = byte_budget(c->incipher);
c->status.decryptin = true;
} else {
c->incipher = NULL;
logger(LOG_ERR, "%s (%s) uses null cipher!", c->name, c->hostname);
return false;
}
c->inmaclength = maclength;
@ -319,7 +329,8 @@ bool metakey_h(connection_t *c) {
return false;
}
} else {
c->indigest = NULL;
logger(LOG_ERR, "%s (%s) uses null digest!", c->name, c->hostname);
return false;
}
c->incompression = compression;
@ -393,7 +404,11 @@ bool challenge_h(connection_t *c) {
/* Rest is done by send_chal_reply() */
return send_chal_reply(c);
if(c->outgoing) {
return send_chal_reply(c);
} else {
return true;
}
}
bool send_chal_reply(connection_t *c) {
@ -495,6 +510,10 @@ bool chal_reply_h(connection_t *c) {
c->allow_request = ACK;
if(!c->outgoing) {
send_chal_reply(c);
}
return send_ack(c);
}

View file

@ -70,7 +70,7 @@ bool add_edge_h(connection_t *c) {
/* Check if names are valid */
if(!check_id(from_name) || !check_id(to_name)) {
if(!check_id(from_name) || !check_id(to_name) || !strcmp(from_name, to_name)) {
logger(LOG_ERR, "Got bad %s from %s (%s): %s", "ADD_EDGE", c->name,
c->hostname, "invalid name");
return false;
@ -197,7 +197,7 @@ bool del_edge_h(connection_t *c) {
/* Check if names are valid */
if(!check_id(from_name) || !check_id(to_name)) {
if(!check_id(from_name) || !check_id(to_name) || !strcmp(from_name, to_name)) {
logger(LOG_ERR, "Got bad %s from %s (%s): %s", "DEL_EDGE", c->name,
c->hostname, "invalid name");
return false;

View file

@ -286,6 +286,11 @@ bool ans_key_h(connection_t *c) {
return true;
}
} else {
if(from->outkeylength != 1) {
logger(LOG_ERR, "Node %s (%s) uses wrong keylength!", from->name, from->hostname);
return true;
}
from->outcipher = NULL;
}

View file

@ -46,7 +46,7 @@ bool add_subnet_h(connection_t *c) {
char subnetstr[MAX_STRING_SIZE];
char name[MAX_STRING_SIZE];
node_t *owner;
subnet_t s = {}, *new, *old;
subnet_t s = {0}, *new, *old;
if(sscanf(c->buffer, "%*d %*x " MAX_STRING " " MAX_STRING, name, subnetstr) != 2) {
logger(LOG_ERR, "Got bad %s from %s (%s)", "ADD_SUBNET", c->name,
@ -160,7 +160,7 @@ bool del_subnet_h(connection_t *c) {
char subnetstr[MAX_STRING_SIZE];
char name[MAX_STRING_SIZE];
node_t *owner;
subnet_t s = {}, *find;
subnet_t s = {0}, *find;
if(sscanf(c->buffer, "%*d %*x " MAX_STRING " " MAX_STRING, name, subnetstr) != 2) {
logger(LOG_ERR, "Got bad %s from %s (%s)", "DEL_SUBNET", c->name,

View file

@ -116,8 +116,8 @@ static void swap_mac_addresses(vpn_packet_t *packet) {
/* RFC 792 */
static void route_ipv4_unreachable(node_t *source, vpn_packet_t *packet, length_t ether_size, uint8_t type, uint8_t code) {
struct ip ip = {};
struct icmp icmp = {};
struct ip ip = {0};
struct icmp icmp = {0};
struct in_addr ip_src;
struct in_addr ip_dst;
@ -218,7 +218,7 @@ static void route_ipv4_unreachable(node_t *source, vpn_packet_t *packet, length_
static void route_ipv6_unreachable(node_t *source, vpn_packet_t *packet, length_t ether_size, uint8_t type, uint8_t code) {
struct ip6_hdr ip6;
struct icmp6_hdr icmp6 = {};
struct icmp6_hdr icmp6 = {0};
uint16_t checksum;
struct {
@ -632,11 +632,13 @@ static void route_ipv4_unicast(node_t *source, vpn_packet_t *packet) {
}
if(!subnet->owner->status.reachable) {
return route_ipv4_unreachable(source, packet, ether_size, ICMP_DEST_UNREACH, ICMP_NET_UNREACH);
route_ipv4_unreachable(source, packet, ether_size, ICMP_DEST_UNREACH, ICMP_NET_UNREACH);
return;
}
if(forwarding_mode == FMODE_OFF && source != myself && subnet->owner != myself) {
return route_ipv4_unreachable(source, packet, ether_size, ICMP_DEST_UNREACH, ICMP_NET_ANO);
route_ipv4_unreachable(source, packet, ether_size, ICMP_DEST_UNREACH, ICMP_NET_ANO);
return;
}
if(decrement_ttl && source != myself && subnet->owner != myself)
@ -656,7 +658,8 @@ static void route_ipv4_unicast(node_t *source, vpn_packet_t *packet) {
}
if(directonly && subnet->owner != via) {
return route_ipv4_unreachable(source, packet, ether_size, ICMP_DEST_UNREACH, ICMP_NET_ANO);
route_ipv4_unreachable(source, packet, ether_size, ICMP_DEST_UNREACH, ICMP_NET_ANO);
return;
}
if(via && packet->len > MAX(via->mtu, 590) && via != myself) {
@ -723,17 +726,20 @@ static void route_ipv6_unicast(node_t *source, vpn_packet_t *packet) {
}
if(!subnet->owner->status.reachable) {
return route_ipv6_unreachable(source, packet, ether_size, ICMP6_DST_UNREACH, ICMP6_DST_UNREACH_NOROUTE);
route_ipv6_unreachable(source, packet, ether_size, ICMP6_DST_UNREACH, ICMP6_DST_UNREACH_NOROUTE);
return;
}
if(forwarding_mode == FMODE_OFF && source != myself && subnet->owner != myself) {
return route_ipv6_unreachable(source, packet, ether_size, ICMP6_DST_UNREACH, ICMP6_DST_UNREACH_ADMIN);
route_ipv6_unreachable(source, packet, ether_size, ICMP6_DST_UNREACH, ICMP6_DST_UNREACH_ADMIN);
return;
}
if(decrement_ttl && source != myself && subnet->owner != myself)
if(decrement_ttl && source != myself && subnet->owner != myself) {
if(!do_decrement_ttl(source, packet)) {
return;
}
}
if(priorityinheritance) {
packet->priority = ((packet->data[14] & 0x0f) << 4) | (packet->data[15] >> 4);
@ -747,7 +753,8 @@ static void route_ipv6_unicast(node_t *source, vpn_packet_t *packet) {
}
if(directonly && subnet->owner != via) {
return route_ipv6_unreachable(source, packet, ether_size, ICMP6_DST_UNREACH, ICMP6_DST_UNREACH_ADMIN);
route_ipv6_unreachable(source, packet, ether_size, ICMP6_DST_UNREACH, ICMP6_DST_UNREACH_ADMIN);
return;
}
if(via && packet->len > MAX(via->mtu, 1294) && via != myself) {
@ -875,7 +882,7 @@ static void route_neighborsol(node_t *source, vpn_packet_t *packet) {
memcpy(packet->data, packet->data + ETH_ALEN, ETH_ALEN); /* copy destination address */
packet->data[ETH_ALEN * 2 - 1] ^= 0xFF; /* mangle source address so it looks like it's not from us */
ip6.ip6_dst = ip6.ip6_src; /* swap destination and source protocoll address */
ip6.ip6_dst = ip6.ip6_src; /* swap destination and source protocol address */
ip6.ip6_src = ns.nd_ns_target;
if(has_opt) {

View file

@ -387,7 +387,7 @@ bool str2net(subnet_t *subnet, const char *subnetstr) {
bool net2str(char *netstr, int len, const subnet_t *subnet) {
if(!netstr || !subnet) {
logger(LOG_ERR, "net2str() was called with netstr=%p, subnet=%p!", netstr, subnet);
logger(LOG_ERR, "net2str() was called with netstr=%p, subnet=%p!", (void *)netstr, (void *)subnet);
return false;
}
@ -592,9 +592,9 @@ void subnet_update(node_t *owner, subnet_t *subnet, bool up) {
// Prepare environment variables to be passed to the script
xasprintf(&envp[0], "NETNAME=%s", netname ? : "");
xasprintf(&envp[1], "DEVICE=%s", device ? : "");
xasprintf(&envp[2], "INTERFACE=%s", iface ? : "");
xasprintf(&envp[0], "NETNAME=%s", netname ? netname : "");
xasprintf(&envp[1], "DEVICE=%s", device ? device : "");
xasprintf(&envp[2], "INTERFACE=%s", iface ? iface : "");
xasprintf(&envp[3], "NODE=%s", owner->name);
xasprintf(&envp[4], "NAME=%s", myself->name);
@ -627,13 +627,8 @@ void subnet_update(node_t *owner, subnet_t *subnet, bool up) {
}
// Prepare the SUBNET and WEIGHT variables
if(envp[5]) {
free(envp[5]);
}
if(envp[6]) {
free(envp[6]);
}
free(envp[5]);
free(envp[6]);
xasprintf(&envp[5], "SUBNET=%s", netstr);
xasprintf(&envp[6], "WEIGHT=%s", weight);
@ -659,7 +654,7 @@ void subnet_update(node_t *owner, subnet_t *subnet, bool up) {
}
}
for(i = 0; envp[i] && i < 9; i++) {
for(i = 0; i < 9; i++) {
free(envp[i]);
}
}

View file

@ -434,7 +434,10 @@ static bool keygen(int bits) {
BN_GENCB_set(cb, indicator, NULL);
rsa_key = RSA_new();
BN_hex2bn(&e, "10001");
if(BN_hex2bn(&e, "10001") == 0) {
abort();
}
if(!rsa_key || !e) {
abort();
@ -559,25 +562,11 @@ static void make_names(void) {
}
static void free_names() {
if(identname) {
free(identname);
}
if(netname) {
free(netname);
}
if(pidfilename) {
free(pidfilename);
}
if(logfilename) {
free(logfilename);
}
if(confbase) {
free(confbase);
}
free(identname);
free(netname);
free(pidfilename);
free(logfilename);
free(confbase);
}
static bool drop_privs() {
@ -698,7 +687,10 @@ int main(int argc, char **argv) {
/* Slllluuuuuuurrrrp! */
RAND_load_file("/dev/urandom", 1024);
if(RAND_load_file("/dev/urandom", 1024) != 1024) {
logger(LOG_ERR, "Error initializing RNG!");
return 1;
}
ENGINE_load_builtin_engines();
ENGINE_register_all_complete();

View file

@ -181,10 +181,7 @@ void close_device(void) {
unlink(device);
free(device);
if(iface) {
free(iface);
}
free(iface);
}
static bool read_packet(vpn_packet_t *packet) {

View file

@ -54,8 +54,8 @@ void bin2hex(char *src, char *dst, int length) {
}
}
#if defined(HAVE_MINGW) || defined(HAVE___CYGWIN32__)
#ifdef HAVE___CYGWIN32__
#if defined(HAVE_MINGW) || defined(HAVE_CYGWIN)
#ifdef HAVE_CYGWIN
#include <w32api/windows.h>
#endif

View file

@ -24,8 +24,11 @@
extern bool hex2bin(char *src, char *dst, int length);
extern void bin2hex(char *src, char *dst, int length);
#ifdef HAVE_MINGW
#if defined(HAVE_MINGW) || defined(HAVE_CYGWIN)
extern const char *winerror(int);
#endif
#ifdef HAVE_MINGW
#define strerror(x) ((x)>0?strerror(x):winerror(GetLastError()))
#define sockerrno WSAGetLastError()
#define sockstrerror(x) winerror(x)

View file

@ -2,7 +2,7 @@
#define TINC_XALLOC_H
/*
xalloc.h -- malloc and related fuctions with out of memory checking
xalloc.h -- malloc and related functions with out of memory checking
Copyright (C) 1990, 91, 92, 93, 94, 95, 96, 97 Free Software Foundation, Inc.
Copyright (C) 2011-2017 Guus Sliepen <guus@tinc-vpn.org>