- Lots of little stuff modified
- Succesfully reads in subnets from host config file now and adds them to the list.
This commit is contained in:
Guus Sliepen
parent
60401d99b1
commit
9c2f805255
8 changed files with 130 additions and 84 deletions
19
src/conf.c
19
src/conf.c
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@ -19,7 +19,7 @@
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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$Id: conf.c,v 1.9.4.16 2000/10/22 13:47:41 zarq Exp $
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$Id: conf.c,v 1.9.4.17 2000/10/24 15:46:15 guus Exp $
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*/
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@ -69,7 +69,7 @@ static internal_config_t hazahaza[] = {
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{ "Address", address, TYPE_NAME },
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{ "Port", port, TYPE_INT },
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{ "PublicKey", publickey, TYPE_NAME },
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{ "Subnet", subnet, TYPE_NAME },
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{ "Subnet", subnet, TYPE_IP }, /* Use IPv4 subnets only for now */
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{ "RestrictHosts", restricthosts, TYPE_BOOL },
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{ "RestrictSubnets", restrictsubnets, TYPE_BOOL },
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{ "RestrictAddress", restrictaddress, TYPE_BOOL },
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@ -237,21 +237,6 @@ cp
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return p;
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}
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/*
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Support for multiple config lines.
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Index is used to get a specific value, 0 being the first, 1 the second etc.
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*/
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const config_t *get_next_config_val(config_t *p, which_t type, int index)
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{
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cp
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for(; p != NULL; p = p->next)
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if(p->which == type)
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if(--index < 0)
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break;
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cp
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return p;
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}
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/*
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Remove the complete configuration tree.
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*/
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10
src/conf.h
10
src/conf.h
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@ -17,17 +17,19 @@
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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$Id: conf.h,v 1.6.4.13 2000/10/15 00:59:34 guus Exp $
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$Id: conf.h,v 1.6.4.14 2000/10/24 15:46:16 guus Exp $
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*/
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#ifndef __TINC_CONF_H__
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#define __TINC_CONF_H__
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#include "net.h"
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#define MAXTIMEOUT 900 /* Maximum timeout value for retries. Should this be a configuration option? */
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typedef struct ip_mask_t {
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unsigned long ip;
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unsigned long mask;
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ipv4_t address;
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ipv4_t mask;
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} ip_mask_t;
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typedef enum which_t {
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@ -86,7 +88,6 @@ enum {
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extern config_t *config;
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extern int debug_lvl;
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extern int timeout;
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extern int upstreamindex;
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extern int sighup;
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extern char *confbase;
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extern char *netname;
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@ -94,7 +95,6 @@ extern char *netname;
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extern config_t *add_config_val(config_t **, int, char *);
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extern int read_config_file(config_t **, const char *);
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extern const config_t *get_config_val(config_t *, which_t type);
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extern const config_t *get_next_config_val(config_t *, which_t type, int);
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extern void clear_config();
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extern int read_server_config(void);
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@ -17,7 +17,7 @@
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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$Id: connlist.c,v 1.1.2.7 2000/10/20 15:34:34 guus Exp $
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$Id: connlist.c,v 1.1.2.8 2000/10/24 15:46:16 guus Exp $
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*/
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#include <syslog.h>
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@ -196,11 +196,23 @@ void dump_conn_list(void)
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cp
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syslog(LOG_DEBUG, _("Connection list:"));
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syslog(LOG_DEBUG, _("%s at %s port %hd flags %d sockets %d, %d status %04x"),
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myself->name, myself->hostname, myself->port, myself->flags,
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myself->socket, myself->meta_socket, myself->status);
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for(s = myself->subnets; s != NULL; s = s->next)
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{
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netstr = net2str(s);
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syslog(LOG_DEBUG, ": %s", netstr);
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free(netstr);
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}
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for(p = conn_list; p != NULL; p = p->next)
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{
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syslog(LOG_DEBUG, _("%s at %s port %hd flags %d sockets %d, %d status %04x"),
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p->name, p->hostname, p->port, p->flags,
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p->socket, p->meta_socket, p->status);
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for(s = p->subnets; s != NULL; s = s->next)
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{
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netstr = net2str(s);
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14
src/meta.c
14
src/meta.c
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@ -17,7 +17,7 @@
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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$Id: meta.c,v 1.1.2.5 2000/10/21 11:52:06 guus Exp $
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$Id: meta.c,v 1.1.2.6 2000/10/24 15:46:16 guus Exp $
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*/
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#include "config.h"
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@ -43,13 +43,14 @@ cp
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cl->name, cl->hostname, buffer);
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buffer[length-1]='\n';
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/*
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if(cl->status.encryptout)
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{
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EVP_EncryptUpdate(cl->cipher_outctx, outbuf, &outlen, buffer, length);
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bufp = outbuf;
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}
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else
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*/
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bufp = buffer;
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if(write(cl->meta_socket, bufp, length) < 0)
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@ -92,10 +93,11 @@ cp
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cl->name, cl->hostname, strerror(x));
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return -1;
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}
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/*
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if(cl->status.decryptin)
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bufp = inbuf;
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else
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*/
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bufp = cl->buffer + cl->buflen;
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lenin = read(cl->meta_socket, bufp, MAXBUFSIZE - cl->buflen);
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@ -115,12 +117,12 @@ cp
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cl->name, cl->hostname);
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return -1;
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}
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/*
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if(cl->status.decryptin)
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{
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EVP_DecryptUpdate(cl->cipher_inctx, cl->buffer + cl->buflen, NULL, inbuf, lenin);
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}
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*/
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oldlen = cl->buflen;
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cl->buflen += lenin;
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@ -140,7 +142,7 @@ cp
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if(cl->reqlen)
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{
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if(debug_lvl >= DEBUG_PROTOCOL)
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if(debug_lvl >= DEBUG_META)
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syslog(LOG_DEBUG, _("Got request from %s (%s): %s"),
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cl->name, cl->hostname, cl->buffer);
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84
src/net.c
84
src/net.c
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@ -17,7 +17,7 @@
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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$Id: net.c,v 1.35.4.44 2000/10/22 13:37:15 zarq Exp $
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$Id: net.c,v 1.35.4.45 2000/10/24 15:46:16 guus Exp $
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*/
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#include "config.h"
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@ -62,7 +62,7 @@ int total_tap_out = 0;
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int total_socket_in = 0;
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int total_socket_out = 0;
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int upstreamindex = 0;
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config_t *upstreamcfg;
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static int seconds_till_retry;
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char *unknown = NULL;
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@ -127,19 +127,16 @@ int xrecv(vpn_packet_t *inpkt)
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vpn_packet_t outpkt;
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int outlen, outpad;
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cp
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if(debug_lvl > DEBUG_TRAFFIC)
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syslog(LOG_ERR, _("Receiving packet of %d bytes"),
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inpkt->len);
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outpkt.len = inpkt->len;
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EVP_DecryptInit(myself->cipher_pktctx, myself->cipher_pkttype, myself->cipher_pktkey, NULL);
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EVP_DecryptUpdate(myself->cipher_pktctx, outpkt.data, &outlen, inpkt->data, inpkt->len);
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/* FIXME: grok DecryptFinal
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EVP_DecryptFinal(myself->cipher_pktctx, outpkt.data + outlen, &outpad);
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*/
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outlen += outpad;
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/* FIXME sometime
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add_mac_addresses(&outpkt);
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*/
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if(write(tap_fd, outpkt.data, outpkt.len) < 0)
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syslog(LOG_ERR, _("Can't write to tap device: %m"));
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else
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@ -438,7 +435,7 @@ cp
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a.sin_port = htons(port);
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if((cfg = get_config_val(config, interfaceip)))
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a.sin_addr.s_addr = htonl(cfg->data.ip->ip);
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a.sin_addr.s_addr = htonl(cfg->data.ip->address);
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else
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a.sin_addr.s_addr = htonl(INADDR_ANY);
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@ -620,11 +617,13 @@ cp
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}
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/*
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set up the local sockets (listen only)
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Configure conn_list_t myself and set up the local sockets (listen only)
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*/
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int setup_myself(void)
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{
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config_t const *cfg;
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subnet_t *net;
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int i;
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cp
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myself = new_conn_list();
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@ -693,6 +692,18 @@ cp
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if(cfg->data.val == stupid_true)
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myself->flags |= TCPONLY;
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/* Read in all the subnets specified in the host configuration file */
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for(cfg = myself->config; cfg = get_config_val(cfg, subnet); cfg = cfg->next)
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{
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net = new_subnet();
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net->type = SUBNET_IPV4;
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net->net.ipv4.address = cfg->data.ip->address;
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net->net.ipv4.mask = cfg->data.ip->mask;
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subnet_add(myself, net);
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}
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if((myself->meta_socket = setup_listen_meta_socket(myself->port)) < 0)
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{
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syslog(LOG_ERR, _("Unable to set up a listening socket!"));
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@ -718,24 +729,25 @@ sigalrm_handler(int a)
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{
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config_t const *cfg;
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cp
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cfg = get_next_config_val(config, connectto, upstreamindex++);
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cfg = get_config_val(upstreamcfg, connectto);
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if(!upstreamindex && !cfg)
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if(!cfg && upstreamcfg == myself->config)
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/* No upstream IP given, we're listen only. */
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return;
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while(cfg)
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{
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upstreamcfg = cfg->next;
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if(!setup_outgoing_connection(cfg->data.ptr)) /* function returns 0 when there are no problems */
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{
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signal(SIGALRM, SIG_IGN);
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return;
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}
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cfg = get_next_config_val(config, connectto, upstreamindex++); /* Or else we try the next ConnectTo line */
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cfg = get_config_val(upstreamcfg, connectto); /* Or else we try the next ConnectTo line */
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}
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signal(SIGALRM, sigalrm_handler);
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upstreamindex = 0;
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upstreamcfg = myself->config;
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seconds_till_retry += 5;
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if(seconds_till_retry > MAXTIMEOUT) /* Don't wait more than MAXTIMEOUT seconds. */
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seconds_till_retry = MAXTIMEOUT;
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@ -781,19 +793,20 @@ cp
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free(scriptname);
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if((cfg = get_next_config_val(config, connectto, upstreamindex++)) == NULL)
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if(!(cfg = get_config_val(myself->config, connectto)))
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/* No upstream IP given, we're listen only. */
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return 0;
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while(cfg)
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{
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upstreamcfg = cfg->next;
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if(!setup_outgoing_connection(cfg->data.ptr)) /* function returns 0 when there are no problems */
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return 0;
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cfg = get_next_config_val(config, connectto, upstreamindex++); /* Or else we try the next ConnectTo line */
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cfg = get_config_val(upstreamcfg, connectto); /* Or else we try the next ConnectTo line */
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}
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signal(SIGALRM, sigalrm_handler);
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upstreamindex = 0;
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upstreamcfg = myself->config;
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seconds_till_retry = MAXTIMEOUT;
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syslog(LOG_NOTICE, _("Trying to re-establish outgoing connection in %d seconds"), seconds_till_retry);
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alarm(seconds_till_retry);
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@ -968,6 +981,8 @@ int handle_incoming_vpn_data()
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vpn_packet_t pkt;
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int lenin;
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int x, l = sizeof(x);
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struct sockaddr from;
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socklen_t fromlen = sizeof(from);
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cp
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if(getsockopt(myself->socket, SOL_SOCKET, SO_ERROR, &x, &l) < 0)
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{
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@ -981,12 +996,18 @@ cp
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return -1;
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}
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if(recvfrom(myself->socket, (char *) &(pkt.len), MTU, 0, NULL, NULL) <= 0)
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if(recvfrom(myself->socket, (char *) &(pkt.len), MTU, 0, &from, &fromlen) <= 0)
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{
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syslog(LOG_ERR, _("Receiving packet failed: %m"));
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return -1;
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}
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/*
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if(debug_lvl >= DEBUG_TRAFFIC)
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{
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syslog(LOG_DEBUG, _("Received packet of %d bytes from %d.%d.%d.%d"), pkt.len,
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from.sa_addr[0], from.sa_addr[1], from.sa_addr[2], from.sa_addr[3]);
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}
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*/
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cp
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return xrecv(&pkt);
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}
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@ -1181,11 +1202,8 @@ cp
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void handle_tap_input(void)
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{
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vpn_packet_t vp;
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ip_t from, to;
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int ether_type, lenin;
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int lenin;
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cp
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memset(&vp, 0, sizeof(vp));
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if(taptype = 1)
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{
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if((lenin = read(tap_fd, vp.data, MTU)) <= 0)
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@ -1207,25 +1225,19 @@ cp
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total_tap_in += lenin;
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ether_type = ntohs(*((unsigned short*)(&vp.data[12])));
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if(ether_type != 0x0800)
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{
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if(debug_lvl >= DEBUG_TRAFFIC)
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syslog(LOG_INFO, _("Non-IP ethernet frame %04x from %02x:%02x:%02x:%02x:%02x:%02x"), ether_type, MAC_ADDR_V(vp.data[6]));
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return;
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}
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if(lenin < 32)
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{
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if(debug_lvl >= DEBUG_TRAFFIC)
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syslog(LOG_INFO, _("Dropping short packet from %02x:%02x:%02x:%02x:%02x:%02x"), MAC_ADDR_V(vp.data[6]));
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syslog(LOG_WARNING, _("Received short packet from tap device"));
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return;
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}
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from = ntohl(*((unsigned long*)(&vp.data[26])));
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to = ntohl(*((unsigned long*)(&vp.data[30])));
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if(debug_lvl >= DEBUG_TRAFFIC)
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{
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syslog(LOG_DEBUG, _("Read packet of length %d from tap device"), vp.len);
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}
|
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|
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send_packet(to, &vp);
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// route_packet(&vp);
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cp
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}
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|
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|
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|
|||
|
|
@ -16,7 +16,7 @@
|
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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"
|
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|
|
@ -125,7 +125,7 @@ cp
|
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}
|
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|
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ip = xmalloc(sizeof(*ip));
|
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ip->ip = ntohl(*((ip_t*)(h->h_addr_list[0])));
|
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ip->address = ntohl(*((ip_t*)(h->h_addr_list[0])));
|
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|
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ip->mask = masker ? ~((1 << (32 - masker)) - 1) : 0;
|
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cp
|
||||
|
|
|
|||
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@ -17,7 +17,7 @@
|
|||
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 $
|
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$Id: protocol.c,v 1.28.4.45 2000/10/24 15:46:17 guus Exp $
|
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*/
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||||
|
||||
#include "config.h"
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||||
|
|
@ -469,7 +469,6 @@ cp
|
|||
notify_others(cl, NULL, send_add_host);
|
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notify_one(cl);
|
||||
*/
|
||||
upstreamindex = 0;
|
||||
|
||||
cp
|
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if(cl->status.outgoing)
|
||||
|
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|
|||
66
src/subnet.c
66
src/subnet.c
|
|
@ -17,7 +17,7 @@
|
|||
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 $
|
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*/
|
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|
||||
#include "config.h"
|
||||
|
|
@ -45,13 +45,48 @@ cp
|
|||
|
||||
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
|
||||
}
|
||||
|
||||
|
|
@ -59,15 +94,13 @@ void subnet_del(subnet_t *subnet)
|
|||
{
|
||||
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
|
||||
}
|
||||
|
|
@ -100,7 +133,7 @@ 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;
|
||||
|
|
@ -152,8 +185,10 @@ cp
|
|||
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],
|
||||
|
|
@ -172,6 +207,7 @@ cp
|
|||
subnet->net.ipv6.mask.x[5],
|
||||
subnet->net.ipv6.mask.x[6],
|
||||
subnet->net.ipv6.mask.x[7]);
|
||||
break;
|
||||
default:
|
||||
netstr = NULL;
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue