Clear Ethernet header when reading packets from a tun device.

[tinc] / src / solaris / device.c

diff --git a/src/solaris/device.c b/src/solaris/device.c
index 3a50b16..26121e2 100644 (file)
--- a/src/solaris/device.c
+++ b/src/solaris/device.c
@@ -1,7 +1,7 @@
 /*
     device.c -- Interaction with Solaris tun device
     Copyright (C) 2001-2005 Ivo Timmermans,
-                  2001-2011 Guus Sliepen <guus@tinc-vpn.org>
+                  2001-2012 Guus Sliepen <guus@tinc-vpn.org>
 
     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
@@ -26,6 +26,7 @@
 #include <net/if_tun.h>
 
 #include "conf.h"
+#include "device.h"
 #include "logger.h"
 #include "net.h"
 #include "utils.h"
@@ -34,7 +35,7 @@
 #define DEFAULT_DEVICE "/dev/tun"
 
 int device_fd = -1;
-int ip_fd = -1, if_fd = -1;
+static int ip_fd = -1, if_fd = -1;
 char *device = NULL;
 char *iface = NULL;
 static char *device_info = NULL;
@@ -42,7 +43,7 @@ static char *device_info = NULL;
 static uint64_t device_total_in = 0;
 static uint64_t device_total_out = 0;
 
-bool setup_device(void) {
+static bool setup_device(void) {
        int ppa;
        char *ptr;
 
@@ -54,6 +55,10 @@ bool setup_device(void) {
                return false;
        }
 
+#ifdef FD_CLOEXEC
+       fcntl(device_fd, F_SETFD, FD_CLOEXEC);
+#endif
+
        ppa = 0;
 
        ptr = device;
@@ -66,6 +71,10 @@ bool setup_device(void) {
                return false;
        }
 
+#ifdef FD_CLOEXEC
+       fcntl(ip_fd, F_SETFD, FD_CLOEXEC);
+#endif
+
        /* Assign a new PPA and get its unit number. */
        if((ppa = ioctl(device_fd, TUNNEWPPA, ppa)) < 0) {
                logger(LOG_ERR, "Can't assign new interface: %s", strerror(errno));
@@ -78,6 +87,10 @@ bool setup_device(void) {
                return false;
        }
 
+#ifdef FD_CLOEXEC
+       fcntl(if_fd, F_SETFD, FD_CLOEXEC);
+#endif
+
        if(ioctl(if_fd, I_PUSH, "ip") < 0) {
                logger(LOG_ERR, "Can't push IP module: %s", strerror(errno));
                return false;
@@ -104,7 +117,7 @@ bool setup_device(void) {
        return true;
 }
 
-void close_device(void) {
+static void close_device(void) {
        close(if_fd);
        close(ip_fd);
        close(device_fd);
@@ -113,7 +126,7 @@ void close_device(void) {
        free(iface);
 }
 
-bool read_packet(vpn_packet_t *packet) {
+static bool read_packet(vpn_packet_t *packet) {
        int lenin;
 
        if((lenin = read(device_fd, packet->data + 14, MTU - 14)) <= 0) {
@@ -138,6 +151,7 @@ bool read_packet(vpn_packet_t *packet) {
                        return false;
        }
 
+       memset(packet->data, 0, 12);
        packet->len = lenin + 14;
 
        device_total_in += packet->len;
@@ -148,7 +162,7 @@ bool read_packet(vpn_packet_t *packet) {
        return true;
 }
 
-bool write_packet(vpn_packet_t *packet) {
+static bool write_packet(vpn_packet_t *packet) {
        ifdebug(TRAFFIC) logger(LOG_DEBUG, "Writing packet of %d bytes to %s",
                           packet->len, device_info);
 
@@ -163,8 +177,16 @@ bool write_packet(vpn_packet_t *packet) {
        return true;
 }
 
-void dump_device_stats(void) {
+static void dump_device_stats(void) {
        logger(LOG_DEBUG, "Statistics for %s %s:", device_info, device);
        logger(LOG_DEBUG, " total bytes in:  %10"PRIu64, device_total_in);
        logger(LOG_DEBUG, " total bytes out: %10"PRIu64, device_total_out);
 }
+
+const devops_t os_devops = {
+       .setup = setup_device,
+       .close = close_device,
+       .read = read_packet,
+       .write = write_packet,
+       .dump_stats = dump_device_stats,
+};