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- Log -----------------------------------------------------------------
commit 39877197d6f99832c9732edcf72a11fbddf43a30
Author: Michael Tremer <michael.tremer(a)ipfire.org>
Date: Sat Jun 25 11:47:42 2011 +0200
openvpnctrl: Implement support to kill connections.
commit 0708113765903d21a5479e5462c6383e0812caf3
Author: Michael Tremer <michael.tremer(a)ipfire.org>
Date: Sat Jun 25 10:59:47 2011 +0200
openvpnctrl: Update firewall rules when starting a n2n connection.
This makes sure, that all rules (esp. for new connections) are up
and running.
-----------------------------------------------------------------------
Summary of changes:
src/misc-progs/openvpnctrl.c | 74 ++++++++++++++++++++++++++++++++++++-----
1 files changed, 65 insertions(+), 9 deletions(-)
Difference in files:
diff --git a/src/misc-progs/openvpnctrl.c b/src/misc-progs/openvpnctrl.c
index e6a8d3f..847a3e2 100644
--- a/src/misc-progs/openvpnctrl.c
+++ b/src/misc-progs/openvpnctrl.c
@@ -1,3 +1,4 @@
+#include <signal.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
@@ -24,7 +25,7 @@ char enableorange[STRING_SIZE] = "off";
char OVPNRED[STRING_SIZE] = "OVPN";
char OVPNBLUE[STRING_SIZE] = "OVPN_BLUE_";
char OVPNORANGE[STRING_SIZE] = "OVPN_ORANGE_";
-char WRAPPERVERSION[STRING_SIZE] = "ipfire-2.1.0";
+char WRAPPERVERSION[STRING_SIZE] = "ipfire-2.1.2";
struct connection_struct {
char name[STRING_SIZE];
@@ -46,9 +47,9 @@ void exithandler(void)
void usage(void)
{
#ifdef ovpndebug
- printf("Wrapper for OpenVPN v%s-debug\n", WRAPPERVERSION);
+ printf("Wrapper for OpenVPN %s-debug\n", WRAPPERVERSION);
#else
- printf("Wrapper for OpenVPN v%s\n", WRAPPERVERSION);
+ printf("Wrapper for OpenVPN %s\n", WRAPPERVERSION);
#endif
printf("openvpnctrl <option>\n");
printf(" Valid options are:\n");
@@ -198,7 +199,7 @@ void executeCommand(char *command) {
void setChainRules(char *chain, char *interface, char *protocol, char *port)
{
char str[STRING_SIZE];
-
+
sprintf(str, "/sbin/iptables -A %sINPUT -i %s -p %s --dport %s -j ACCEPT", chain, interface, protocol, port);
executeCommand(str);
sprintf(str, "/sbin/iptables -A %sINPUT -i tun+ -j ACCEPT", chain);
@@ -342,6 +343,11 @@ void setFirewallRules(void) {
// read connection configuration
connection *conn = getConnections();
+ // Flush all chains.
+ flushChain(OVPNRED);
+ flushChain(OVPNBLUE);
+ flushChain(OVPNORANGE);
+
// set firewall rules
if (!strcmp(enablered, "on") && strlen(redif))
setChainRules(OVPNRED, redif, protocol, dport);
@@ -351,10 +357,10 @@ void setFirewallRules(void) {
setChainRules(OVPNORANGE, orangeif, protocol, dport);
// set firewall rules for n2n connections
- char port[STRING_SIZE];
+ char *port;
while (conn) {
sprintf(port, "%d", conn->port);
- setChainRules(OVPNRED, redif, &conn->proto, &port);
+ setChainRules(OVPNRED, redif, conn->proto, port);
conn = conn->next;
}
}
@@ -403,13 +409,63 @@ void startNet2Net(char *name) {
exit(1);
}
+ char configfile[STRING_SIZE];
+ snprintf(configfile, STRING_SIZE - 1, CONFIG_ROOT "/ovpn/n2nconf/%s/%s.conf",
+ conn->name, conn->name);
+
+ FILE *fp = fopen(configfile, "r");
+ if (fp == NULL) {
+ fprintf(stderr, "Could not find configuration file for connection '%s' at '%s'.\n",
+ conn->name, configfile);
+ exit(2);
+ }
+ fclose(fp);
+
+ // Make sure all firewall rules are up to date.
+ setFirewallRules();
+
char command[STRING_SIZE];
- sprintf(command, "/usr/sbin/openvpn --config " CONFIG_ROOT "/ovpn/n2nconf/%s/%s.conf", conn->name, conn->name);
+ sprintf(command, "/usr/sbin/openvpn --config %s", configfile);
executeCommand(command);
}
-void killNet2Net(char *conn) {
- printf("TO BE DONE %s\n", conn);
+void killNet2Net(char *name) {
+ connection *conn = NULL;
+ connection *conn_iter;
+
+ conn_iter = getConnections();
+
+ while (conn_iter) {
+ if (strcmp(conn_iter->name, name) == 0) {
+ conn = conn_iter;
+ break;
+ }
+ conn_iter = conn_iter->next;
+ }
+
+ if (conn == NULL) {
+ fprintf(stderr, "Connection not found.\n");
+ exit(1);
+ }
+
+ char pidfile[STRING_SIZE];
+ snprintf(&pidfile, STRING_SIZE - 1, "/var/run/%sn2n.pid", conn->name);
+
+ FILE *fp = fopen(pidfile, "r");
+ if (fp == NULL) {
+ fprintf(stderr, "Could not determine PID for connection '%s'.\n", conn->name);
+ fprintf(stderr, "PID file not found: '%s'\n", pidfile);
+ exit(1);
+ }
+
+ int pid;
+ fscanf(fp, "%d", &pid);
+ fclose(fp);
+
+ fprintf(stderr, "Killing PID %d.\n", pid);
+ kill(pid, SIGTERM);
+
+ exit(0);
}
void displayopenvpn(void) {
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