Merge to kernel-2.6.20-1.2949.fc6.vs2.2.0.1

[linux-2.6.git] / arch / um / os-Linux / drivers / tuntap_user.c

diff --git a/arch/um/os-Linux/drivers/tuntap_user.c b/arch/um/os-Linux/drivers/tuntap_user.c
index 054874d..e846b23 100644 (file)
--- a/arch/um/os-Linux/drivers/tuntap_user.c
+++ b/arch/um/os-Linux/drivers/tuntap_user.c
@@ -18,8 +18,8 @@
 #include "net_user.h"
 #include "tuntap.h"
 #include "kern_util.h"
+#include "user_util.h"
 #include "user.h"
-#include "helper.h"
 #include "os.h"
 
 #define MAX_PACKET ETH_MAX_PACKET
@@ -74,7 +74,7 @@ static int tuntap_open_tramp(char *gate, int *fd_out, int me, int remote,
        struct msghdr msg;
        struct cmsghdr *cmsg;
        struct iovec iov;
-       int pid, n;
+       int pid, n, err;
 
        sprintf(version_buf, "%d", UML_NET_VERSION);
 
@@ -104,11 +104,12 @@ static int tuntap_open_tramp(char *gate, int *fd_out, int me, int remote,
        n = recvmsg(me, &msg, 0);
        *used_out = n;
        if(n < 0){
+               err = -errno;
                printk("tuntap_open_tramp : recvmsg failed - errno = %d\n", 
                       errno);
-               return(-errno);
+               return err;
        }
-       waitpid(pid, NULL, 0);
+       CATCH_EINTR(waitpid(pid, NULL, 0));
 
        cmsg = CMSG_FIRSTHDR(&msg);
        if(cmsg == NULL){
@@ -121,6 +122,7 @@ static int tuntap_open_tramp(char *gate, int *fd_out, int me, int remote,
                return(-EINVAL);
        }
        *fd_out = ((int *) CMSG_DATA(cmsg))[0];
+       os_set_exec_close(*fd_out, 1);
        return(0);
 }
 
@@ -132,11 +134,12 @@ static int tuntap_open(void *data)
        int err, fds[2], len, used;
 
        err = tap_open_common(pri->dev, pri->gate_addr);
-       if(err < 0) 
+       if(err < 0)
                return(err);
 
        if(pri->fixed_config){
-               pri->fd = os_open_file("/dev/net/tun", of_rdwr(OPENFLAGS()), 0);
+               pri->fd = os_open_file("/dev/net/tun",
+                                      of_cloexec(of_rdwr(OPENFLAGS())), 0);
                if(pri->fd < 0){
                        printk("Failed to open /dev/net/tun, err = %d\n",
                               -pri->fd);
@@ -146,9 +149,10 @@ static int tuntap_open(void *data)
                ifr.ifr_flags = IFF_TAP | IFF_NO_PI;
                strlcpy(ifr.ifr_name, pri->dev_name, sizeof(ifr.ifr_name));
                if(ioctl(pri->fd, TUNSETIFF, (void *) &ifr) < 0){
+                       err = -errno;
                        printk("TUNSETIFF failed, errno = %d\n", errno);
                        os_close_file(pri->fd);
-                       return(-errno);
+                       return err;
                }
        }
        else {
@@ -201,7 +205,7 @@ static int tuntap_set_mtu(int mtu, void *data)
        return(mtu);
 }
 
-struct net_user_info tuntap_user_info = {
+const struct net_user_info tuntap_user_info = {
        .init           = tuntap_user_init,
        .open           = tuntap_open,
        .close          = tuntap_close,