along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- $Id: conf.c,v 1.9.4.16 2000/10/22 13:47:41 zarq Exp $
+ $Id: conf.c,v 1.9.4.17 2000/10/24 15:46:15 guus Exp $
*/
{ "Address", address, TYPE_NAME },
{ "Port", port, TYPE_INT },
{ "PublicKey", publickey, TYPE_NAME },
- { "Subnet", subnet, TYPE_NAME },
+ { "Subnet", subnet, TYPE_IP }, /* Use IPv4 subnets only for now */
{ "RestrictHosts", restricthosts, TYPE_BOOL },
{ "RestrictSubnets", restrictsubnets, TYPE_BOOL },
{ "RestrictAddress", restrictaddress, TYPE_BOOL },
return p;
}
-/*
- Support for multiple config lines.
- Index is used to get a specific value, 0 being the first, 1 the second etc.
-*/
-const config_t *get_next_config_val(config_t *p, which_t type, int index)
-{
-cp
- for(; p != NULL; p = p->next)
- if(p->which == type)
- if(--index < 0)
- break;
-cp
- return p;
-}
-
/*
Remove the complete configuration tree.
*/
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- $Id: conf.h,v 1.6.4.13 2000/10/15 00:59:34 guus Exp $
+ $Id: conf.h,v 1.6.4.14 2000/10/24 15:46:16 guus Exp $
*/
#ifndef __TINC_CONF_H__
#define __TINC_CONF_H__
+#include "net.h"
+
#define MAXTIMEOUT 900 /* Maximum timeout value for retries. Should this be a configuration option? */
typedef struct ip_mask_t {
- unsigned long ip;
- unsigned long mask;
+ ipv4_t address;
+ ipv4_t mask;
} ip_mask_t;
typedef enum which_t {
extern config_t *config;
extern int debug_lvl;
extern int timeout;
-extern int upstreamindex;
extern int sighup;
extern char *confbase;
extern char *netname;
extern config_t *add_config_val(config_t **, int, char *);
extern int read_config_file(config_t **, const char *);
extern const config_t *get_config_val(config_t *, which_t type);
-extern const config_t *get_next_config_val(config_t *, which_t type, int);
extern void clear_config();
extern int read_server_config(void);
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- $Id: connlist.c,v 1.1.2.7 2000/10/20 15:34:34 guus Exp $
+ $Id: connlist.c,v 1.1.2.8 2000/10/24 15:46:16 guus Exp $
*/
#include <syslog.h>
cp
syslog(LOG_DEBUG, _("Connection list:"));
+ syslog(LOG_DEBUG, _("%s at %s port %hd flags %d sockets %d, %d status %04x"),
+ myself->name, myself->hostname, myself->port, myself->flags,
+ myself->socket, myself->meta_socket, myself->status);
+
+ for(s = myself->subnets; s != NULL; s = s->next)
+ {
+ netstr = net2str(s);
+ syslog(LOG_DEBUG, ": %s", netstr);
+ free(netstr);
+ }
+
for(p = conn_list; p != NULL; p = p->next)
{
syslog(LOG_DEBUG, _("%s at %s port %hd flags %d sockets %d, %d status %04x"),
p->name, p->hostname, p->port, p->flags,
p->socket, p->meta_socket, p->status);
+
for(s = p->subnets; s != NULL; s = s->next)
{
netstr = net2str(s);
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- $Id: meta.c,v 1.1.2.5 2000/10/21 11:52:06 guus Exp $
+ $Id: meta.c,v 1.1.2.6 2000/10/24 15:46:16 guus Exp $
*/
#include "config.h"
cl->name, cl->hostname, buffer);
buffer[length-1]='\n';
-
+/*
if(cl->status.encryptout)
{
EVP_EncryptUpdate(cl->cipher_outctx, outbuf, &outlen, buffer, length);
bufp = outbuf;
}
else
+*/
bufp = buffer;
if(write(cl->meta_socket, bufp, length) < 0)
cl->name, cl->hostname, strerror(x));
return -1;
}
-
+/*
if(cl->status.decryptin)
bufp = inbuf;
else
+*/
bufp = cl->buffer + cl->buflen;
lenin = read(cl->meta_socket, bufp, MAXBUFSIZE - cl->buflen);
cl->name, cl->hostname);
return -1;
}
-
+/*
if(cl->status.decryptin)
{
EVP_DecryptUpdate(cl->cipher_inctx, cl->buffer + cl->buflen, NULL, inbuf, lenin);
}
-
+*/
oldlen = cl->buflen;
cl->buflen += lenin;
if(cl->reqlen)
{
- if(debug_lvl >= DEBUG_PROTOCOL)
+ if(debug_lvl >= DEBUG_META)
syslog(LOG_DEBUG, _("Got request from %s (%s): %s"),
cl->name, cl->hostname, cl->buffer);
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- $Id: net.c,v 1.35.4.44 2000/10/22 13:37:15 zarq Exp $
+ $Id: net.c,v 1.35.4.45 2000/10/24 15:46:16 guus Exp $
*/
#include "config.h"
int total_socket_in = 0;
int total_socket_out = 0;
-int upstreamindex = 0;
+config_t *upstreamcfg;
static int seconds_till_retry;
char *unknown = NULL;
vpn_packet_t outpkt;
int outlen, outpad;
cp
- if(debug_lvl > DEBUG_TRAFFIC)
- syslog(LOG_ERR, _("Receiving packet of %d bytes"),
- inpkt->len);
-
outpkt.len = inpkt->len;
EVP_DecryptInit(myself->cipher_pktctx, myself->cipher_pkttype, myself->cipher_pktkey, NULL);
EVP_DecryptUpdate(myself->cipher_pktctx, outpkt.data, &outlen, inpkt->data, inpkt->len);
- /* FIXME: grok DecryptFinal
EVP_DecryptFinal(myself->cipher_pktctx, outpkt.data + outlen, &outpad);
- */
+ outlen += outpad;
+ /* FIXME sometime
add_mac_addresses(&outpkt);
-
+ */
+
if(write(tap_fd, outpkt.data, outpkt.len) < 0)
syslog(LOG_ERR, _("Can't write to tap device: %m"));
else
a.sin_port = htons(port);
if((cfg = get_config_val(config, interfaceip)))
- a.sin_addr.s_addr = htonl(cfg->data.ip->ip);
+ a.sin_addr.s_addr = htonl(cfg->data.ip->address);
else
a.sin_addr.s_addr = htonl(INADDR_ANY);
}
/*
- set up the local sockets (listen only)
+ Configure conn_list_t myself and set up the local sockets (listen only)
*/
int setup_myself(void)
{
config_t const *cfg;
+ subnet_t *net;
+ int i;
cp
myself = new_conn_list();
if(cfg->data.val == stupid_true)
myself->flags |= TCPONLY;
+/* Read in all the subnets specified in the host configuration file */
+
+ for(cfg = myself->config; cfg = get_config_val(cfg, subnet); cfg = cfg->next)
+ {
+ net = new_subnet();
+ net->type = SUBNET_IPV4;
+ net->net.ipv4.address = cfg->data.ip->address;
+ net->net.ipv4.mask = cfg->data.ip->mask;
+
+ subnet_add(myself, net);
+ }
+
if((myself->meta_socket = setup_listen_meta_socket(myself->port)) < 0)
{
syslog(LOG_ERR, _("Unable to set up a listening socket!"));
{
config_t const *cfg;
cp
- cfg = get_next_config_val(config, connectto, upstreamindex++);
+ cfg = get_config_val(upstreamcfg, connectto);
- if(!upstreamindex && !cfg)
+ if(!cfg && upstreamcfg == myself->config)
/* No upstream IP given, we're listen only. */
return;
while(cfg)
{
+ upstreamcfg = cfg->next;
if(!setup_outgoing_connection(cfg->data.ptr)) /* function returns 0 when there are no problems */
{
signal(SIGALRM, SIG_IGN);
return;
}
- cfg = get_next_config_val(config, connectto, upstreamindex++); /* Or else we try the next ConnectTo line */
+ cfg = get_config_val(upstreamcfg, connectto); /* Or else we try the next ConnectTo line */
}
signal(SIGALRM, sigalrm_handler);
- upstreamindex = 0;
+ upstreamcfg = myself->config;
seconds_till_retry += 5;
if(seconds_till_retry > MAXTIMEOUT) /* Don't wait more than MAXTIMEOUT seconds. */
seconds_till_retry = MAXTIMEOUT;
free(scriptname);
- if((cfg = get_next_config_val(config, connectto, upstreamindex++)) == NULL)
+ if(!(cfg = get_config_val(myself->config, connectto)))
/* No upstream IP given, we're listen only. */
return 0;
while(cfg)
{
+ upstreamcfg = cfg->next;
if(!setup_outgoing_connection(cfg->data.ptr)) /* function returns 0 when there are no problems */
return 0;
- cfg = get_next_config_val(config, connectto, upstreamindex++); /* Or else we try the next ConnectTo line */
+ cfg = get_config_val(upstreamcfg, connectto); /* Or else we try the next ConnectTo line */
}
signal(SIGALRM, sigalrm_handler);
- upstreamindex = 0;
+ upstreamcfg = myself->config;
seconds_till_retry = MAXTIMEOUT;
syslog(LOG_NOTICE, _("Trying to re-establish outgoing connection in %d seconds"), seconds_till_retry);
alarm(seconds_till_retry);
vpn_packet_t pkt;
int lenin;
int x, l = sizeof(x);
+ struct sockaddr from;
+ socklen_t fromlen = sizeof(from);
cp
if(getsockopt(myself->socket, SOL_SOCKET, SO_ERROR, &x, &l) < 0)
{
return -1;
}
- if(recvfrom(myself->socket, (char *) &(pkt.len), MTU, 0, NULL, NULL) <= 0)
+ if(recvfrom(myself->socket, (char *) &(pkt.len), MTU, 0, &from, &fromlen) <= 0)
{
syslog(LOG_ERR, _("Receiving packet failed: %m"));
return -1;
}
-
+/*
+ if(debug_lvl >= DEBUG_TRAFFIC)
+ {
+ syslog(LOG_DEBUG, _("Received packet of %d bytes from %d.%d.%d.%d"), pkt.len,
+ from.sa_addr[0], from.sa_addr[1], from.sa_addr[2], from.sa_addr[3]);
+ }
+*/
cp
return xrecv(&pkt);
}
void handle_tap_input(void)
{
vpn_packet_t vp;
- ip_t from, to;
- int ether_type, lenin;
+ int lenin;
cp
- memset(&vp, 0, sizeof(vp));
-
if(taptype = 1)
{
if((lenin = read(tap_fd, vp.data, MTU)) <= 0)
total_tap_in += lenin;
- ether_type = ntohs(*((unsigned short*)(&vp.data[12])));
- if(ether_type != 0x0800)
- {
- if(debug_lvl >= DEBUG_TRAFFIC)
- syslog(LOG_INFO, _("Non-IP ethernet frame %04x from %02x:%02x:%02x:%02x:%02x:%02x"), ether_type, MAC_ADDR_V(vp.data[6]));
- return;
- }
-
if(lenin < 32)
{
if(debug_lvl >= DEBUG_TRAFFIC)
- syslog(LOG_INFO, _("Dropping short packet from %02x:%02x:%02x:%02x:%02x:%02x"), MAC_ADDR_V(vp.data[6]));
+ syslog(LOG_WARNING, _("Received short packet from tap device"));
return;
}
- from = ntohl(*((unsigned long*)(&vp.data[26])));
- to = ntohl(*((unsigned long*)(&vp.data[30])));
+ if(debug_lvl >= DEBUG_TRAFFIC)
+ {
+ syslog(LOG_DEBUG, _("Read packet of length %d from tap device"), vp.len);
+ }
- send_packet(to, &vp);
+// route_packet(&vp);
cp
}
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- $Id: netutl.c,v 1.12.4.12 2000/10/11 22:01:00 guus Exp $
+ $Id: netutl.c,v 1.12.4.13 2000/10/24 15:46:17 guus Exp $
*/
#include "config.h"
}
ip = xmalloc(sizeof(*ip));
- ip->ip = ntohl(*((ip_t*)(h->h_addr_list[0])));
+ ip->address = ntohl(*((ip_t*)(h->h_addr_list[0])));
ip->mask = masker ? ~((1 << (32 - masker)) - 1) : 0;
cp
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- $Id: protocol.c,v 1.28.4.44 2000/10/21 11:52:07 guus Exp $
+ $Id: protocol.c,v 1.28.4.45 2000/10/24 15:46:17 guus Exp $
*/
#include "config.h"
notify_others(cl, NULL, send_add_host);
notify_one(cl);
*/
- upstreamindex = 0;
cp
if(cl->status.outgoing)
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- $Id: subnet.c,v 1.1.2.4 2000/10/15 00:59:37 guus Exp $
+ $Id: subnet.c,v 1.1.2.5 2000/10/24 15:46:18 guus Exp $
*/
#include "config.h"
void subnet_add(conn_list_t *cl, subnet_t *subnet)
{
+ subnet_t *p = NULL;
+ subnet_t *q = NULL;
cp
- /* FIXME: do sorting on netmask size if necessary */
+ subnet->owner = cl;
- subnet->next = cl->subnets->next;
- subnet->prev = NULL;
- subnet->next->prev = subnet;
- cl->subnets = subnet;
+ /* Sort on size of subnet mask (IPv4 only at the moment!)
+
+ Three cases: cl->subnets = NULL -> just add this subnet
+ insert before first -> add it in front of list
+ rest: insert after another subnet
+ */
+
+ if(cl->subnets)
+ {
+ p = q = cl->subnets;
+
+ for(; p; p = p->next)
+ {
+ if(subnet->net.ipv4.mask >= p->net.ipv4.mask)
+ break;
+
+ q = p;
+ }
+ }
+
+ if(!cl->subnets || p == cl->subnets) /* First two cases */
+ {
+ /* Insert in front */
+ subnet->next = cl->subnets;
+ subnet->prev = NULL;
+ cl->subnets = subnet;
+ }
+ else /* Third case */
+ {
+ /* Insert after q */
+ subnet->next = q->next;
+ subnet->prev = q;
+ q->next = subnet;
+ }
+
+ if(subnet->next)
+ subnet->next->prev = subnet;
cp
}
{
cp
if(subnet->prev)
- {
- subnet->prev->next = subnet->next;
- }
+ subnet->prev->next = subnet->next;
else
- {
- subnet->owner->subnets = subnet->next;
- }
+ subnet->owner->subnets = subnet->next;
+
+ if(subnet->next)
+ subnet->next->prev = subnet->prev;
- subnet->next->prev = subnet->prev;
free_subnet(subnet);
cp
}
}
break;
case SUBNET_IPV4:
- if(sscanf(subnetstr, "%d,%lx:%lx", &subnet->type, &subnet->net.ipv4.address, &subnet->net.ipv4.mask) != 3)
+ if(sscanf(subnetstr, "%d,%lx/%lx", &subnet->type, &subnet->net.ipv4.address, &subnet->net.ipv4.mask) != 3)
{
free_subnet(subnet);
return NULL;
subnet->net.mac.address.x[3],
subnet->net.mac.address.x[4],
subnet->net.mac.address.x[5]);
+ break;
case SUBNET_IPV4:
- asprintf(&netstr, "%d,%lx:%lx", subnet->type, subnet->net.ipv4.address, subnet->net.ipv4.mask);
+ asprintf(&netstr, "%d,%lx/%lx", subnet->type, subnet->net.ipv4.address, subnet->net.ipv4.mask);
+ break;
case SUBNET_IPV6:
asprintf(&netstr, "%d,%hx:%hx:%hx:%hx:%hx:%hx:%hx:%hx/%hx:%hx:%hx:%hx:%hx:%hx:%hx:%hx",
subnet->net.ipv6.address.x[0],
subnet->net.ipv6.mask.x[5],
subnet->net.ipv6.mask.x[6],
subnet->net.ipv6.mask.x[7]);
+ break;
default:
netstr = NULL;
}
projects / tinc / commitdiff