Supporting VLAN for Mac OS X using TunTapOSX

3 files changed, 74 insertions, 12 deletions

diff --git a/src/Cedar/Cedar.h b/src/Cedar/Cedar.h
index b857a7d6..693e9a36 100644
--- a/src/Cedar/Cedar.h
+++ b/src/Cedar/Cedar.h
@@ -696,7 +696,15 @@
 

 #define	TAP_FILENAME_1				"/dev/net/tun"

 #define	TAP_FILENAME_2				"/dev/tun"

+#ifdef	UNIX_MACOS

+#ifdef	NO_VLAN

 #define	TAP_MACOS_FILENAME			"/dev/tap0"

+#else

+#define	TAP_MACOS_FILENAME			"tap"

+#endif

+#define	TAP_MACOS_DIR				"/dev/"

+#define	TAP_MACOS_NUMBER			(16)

+#endif

 

 

 

diff --git a/src/Cedar/Client.c b/src/Cedar/Client.c
index 16062e7f..f85a9c72 100644
--- a/src/Cedar/Client.c
+++ b/src/Cedar/Client.c
@@ -7446,12 +7446,14 @@ bool CtDisableVLan(CLIENT *c, RPC_CLIENT_CREATE_VLAN *vlan)
 

 #ifndef	OS_WIN32

 

+#ifdef	NO_VLAN

 	if (GetOsInfo()->OsType == OSTYPE_MACOS_X)

 	{

 		// Can not be added or removed the virtual LAN card in MacOS X

 		CiSetError(c, ERR_NOT_SUPPORTED);

 		return false;

 	}

+#endif

 

 	// Check whether the virtual LAN card with the specified name is not

 	// being used by one or more accounts

@@ -7597,12 +7599,14 @@ bool CtEnableVLan(CLIENT *c, RPC_CLIENT_CREATE_VLAN *vlan)
 

 #ifndef	OS_WIN32

 

+#ifdef	NO_VLAN

 	if (GetOsInfo()->OsType == OSTYPE_MACOS_X)

 	{

 		// Can not be added or removed the virtual LAN card in MacOS X

 		CiSetError(c, ERR_NOT_SUPPORTED);

 		return false;

 	}

+#endif

 

 	// Search the virtual LAN card

 	LockList(c->UnixVLanList);

@@ -7693,12 +7697,14 @@ bool CtDeleteVLan(CLIENT *c, RPC_CLIENT_CREATE_VLAN *d)
 

 #ifndef	OS_WIN32

 

+#ifdef	NO_VLAN

 	if (GetOsInfo()->OsType == OSTYPE_MACOS_X)

 	{

 		// Can not be added or removed the virtual LAN card in MacOS X

 		CiSetError(c, ERR_NOT_SUPPORTED);

 		return false;

 	}

+#endif

 

 	// Check whether the virtual LAN card with the specified name is not

 	// being used by one or more accounts

@@ -8265,12 +8271,14 @@ bool CtCreateVLan(CLIENT *c, RPC_CLIENT_CREATE_VLAN *create)
 #ifndef	OS_WIN32

 

 	// Non-Win32

+#ifdef	NO_VLAN

 	if (GetOsInfo()->OsType == OSTYPE_MACOS_X)

 	{

 		// A virtual LAN card can not be added or removed in MacOS X

 		CiSetError(c, ERR_NOT_SUPPORTED);

 		return false;

 	}

+#endif

 

 	// Check whether the specified name is valid or not

 	if (IsSafeStr(create->DeviceName) == false)

@@ -9792,7 +9800,11 @@ bool CiReadSettingFromCfg(CLIENT *c, FOLDER *root)
 	// Eraser

 	c->Eraser = NewEraser(c->Logger, CfgGetInt64(config, "AutoDeleteCheckDiskFreeSpaceMin"));

 

-	if (OS_IS_UNIX(GetOsInfo()->OsType) && GetOsInfo()->OsType != OSTYPE_MACOS_X)

+	if (OS_IS_UNIX(GetOsInfo()->OsType)

+#ifdef	NO_VLAN

+	    && GetOsInfo()->OsType != OSTYPE_MACOS_X

+#endif

+	    )

 	{

 		// Read the UNIX version virtual LAN card list (except MacOS)

 		vlan = CfgGetFolder(root, "UnixVLan");

@@ -9802,6 +9814,7 @@ bool CiReadSettingFromCfg(CLIENT *c, FOLDER *root)
 		}

 	}

 

+#ifdef	NO_VLAN

 	if (GetOsInfo()->OsType == OSTYPE_MACOS_X)

 	{

 #ifdef	OS_UNIX

@@ -9822,6 +9835,7 @@ bool CiReadSettingFromCfg(CLIENT *c, FOLDER *root)
 		Add(c->UnixVLanList, uv);

 #endif	// OS_UNIX

 	}

+#endif

 

 	CiLoadAccountDatabase(c, db);

 

@@ -10328,7 +10342,11 @@ void CiWriteSettingToCfg(CLIENT *c, FOLDER *root)
 	CiWriteCAList(c, ca);

 

 	// VLAN

-	if (OS_IS_UNIX(GetOsInfo()->OsType) && GetOsInfo()->OsType != OSTYPE_MACOS_X)

+	if (OS_IS_UNIX(GetOsInfo()->OsType)

+#ifdef	NO_VLAN

+	    && GetOsInfo()->OsType != OSTYPE_MACOS_X

+#endif

+	    )

 	{

 		vlan = CfgCreateFolder(root, "UnixVLan");

 		CiWriteVLanList(c, vlan);

diff --git a/src/Cedar/VLanUnix.c b/src/Cedar/VLanUnix.c
index c3e77d0c..c987f14a 100644
--- a/src/Cedar/VLanUnix.c
+++ b/src/Cedar/VLanUnix.c
@@ -302,11 +302,7 @@ CANCEL *VLanGetCancel(VLAN *v)
 

 	fd = v->fd;

 

-#ifndef	UNIX_MACOS

 	UnixSetSocketNonBlockingMode(fd, true);

-#else	// UNIX_MACOS

-	UnixSetSocketNonBlockingMode(fd, false);

-#endif	// UNIX_MACOS

 

 	c->SpecialFlag = true;

 	c->pipe_read = fd;

@@ -402,6 +398,9 @@ int UnixCreateTapDeviceEx(char *name, char *prefix, UCHAR *mac_address)
 	struct sockaddr sa;

 	char *tap_name = TAP_FILENAME_1;

 	int s;

+#ifdef	UNIX_MACOS

+	char tap_macos_name[256] = TAP_MACOS_DIR TAP_MACOS_FILENAME;

+#endif

 	// Validate arguments

 	if (name == NULL)

 	{

@@ -445,13 +444,23 @@ int UnixCreateTapDeviceEx(char *name, char *prefix, UCHAR *mac_address)
 		tap_name = TAP_FILENAME_2;

 	}

 #else	// UNIX_MACOS

-	// MacOS X

-	fd = open(TAP_MACOS_FILENAME, O_RDWR);

-	if (fd == -1)

 	{

-		return -1;

+		int i;

+		fd = -1;

+		for (i = 0; i < TAP_MACOS_NUMBER; i++) {

+			sprintf(tap_macos_name + strlen(TAP_MACOS_DIR TAP_MACOS_FILENAME), "%d", i);

+			fd = open(tap_macos_name, O_RDWR);

+			if (fd != -1)

+			{

+				tap_name = tap_macos_name;

+				break;

+			}

+		}

+		if (fd == -1)

+		{

+			return -1;

+		}

 	}

-	tap_name = TAP_MACOS_FILENAME;

 #endif	// UNIX_MACOS

 

 #ifdef	UNIX_LINUX

@@ -479,7 +488,7 @@ int UnixCreateTapDeviceEx(char *name, char *prefix, UCHAR *mac_address)
 			Zero(&ifr, sizeof(ifr));

 			StrCpy(ifr.ifr_name, sizeof(ifr.ifr_name), eth_name);

 			ifr.ifr_hwaddr.sa_family = ARPHRD_ETHER;

-			Copy(&ifr.ifr_hwaddr.sa_data, mac_address, 6);

+			Copy(&ifr.ifr_addr.sa_data, mac_address, 6);

 			ioctl(s, SIOCSIFHWADDR, &ifr);

 		}

 

@@ -494,6 +503,33 @@ int UnixCreateTapDeviceEx(char *name, char *prefix, UCHAR *mac_address)
 	}

 

 #else	// UNIX_LINUX

+#ifdef	UNIX_MACOS

+	// MAC address setting

+	s = socket(AF_INET, SOCK_DGRAM, 0);

+	if (s != -1)

+	{

+		char *macos_eth_name;

+		macos_eth_name = tap_macos_name + strlen(TAP_MACOS_DIR);

+

+		if (mac_address != NULL)

+		{

+			uint8_t macos_mac_address[19];

+			Zero(&ifr, sizeof(ifr));

+			StrCpy(ifr.ifr_name, sizeof(ifr.ifr_name), macos_eth_name);

+			Copy(&ifr.ifr_addr.sa_data, mac_address, 6);

+			ioctl(s, SIOCSIFLLADDR, &ifr);

+		}

+

+		Zero(&ifr, sizeof(ifr));

+		StrCpy(ifr.ifr_name, sizeof(ifr.ifr_name), macos_eth_name);

+		ioctl(s, SIOCGIFFLAGS, &ifr);

+

+		ifr.ifr_flags |= IFF_UP;

+		ioctl(s, SIOCSIFFLAGS, &ifr);

+

+		close(s);

+	}

+#endif

 #ifdef	UNIX_SOLARIS

 	// Create a tap for Solaris

 	{