Imported Upstream version 5.0.1

1 files changed, 13 insertions, 140 deletions

diff --git a/src/libhydra/kernel/kernel_ipsec.h b/src/libhydra/kernel/kernel_ipsec.h
index ddb63283c..ee0ade2aa 100644
--- a/src/libhydra/kernel/kernel_ipsec.h
+++ b/src/libhydra/kernel/kernel_ipsec.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2006-2011 Tobias Brunner
+ * Copyright (C) 2006-2012 Tobias Brunner
  * Copyright (C) 2006 Daniel Roethlisberger
  * Copyright (C) 2005-2006 Martin Willi
  * Copyright (C) 2005 Jan Hutter
@@ -24,152 +24,14 @@
 #ifndef KERNEL_IPSEC_H_
 #define KERNEL_IPSEC_H_
 
-typedef enum ipsec_mode_t ipsec_mode_t;
-typedef enum policy_dir_t policy_dir_t;
-typedef enum policy_type_t policy_type_t;
-typedef enum policy_priority_t policy_priority_t;
-typedef enum ipcomp_transform_t ipcomp_transform_t;
 typedef struct kernel_ipsec_t kernel_ipsec_t;
-typedef struct ipsec_sa_cfg_t ipsec_sa_cfg_t;
-typedef struct lifetime_cfg_t lifetime_cfg_t;
-typedef struct mark_t mark_t;
 
 #include <utils/host.h>
-#include <crypto/prf_plus.h>
+#include <ipsec/ipsec_types.h>
 #include <selectors/traffic_selector.h>
 #include <plugins/plugin.h>
 
 /**
- * Mode of an IPsec SA.
- */
-enum ipsec_mode_t {
-	/** transport mode, no inner address */
-	MODE_TRANSPORT = 1,
-	/** tunnel mode, inner and outer addresses */
-	MODE_TUNNEL,
-	/** BEET mode, tunnel mode but fixed, bound inner addresses */
-	MODE_BEET,
-	/** passthrough policy for traffic without an IPsec SA */
-	MODE_PASS,
-	/** drop policy discarding traffic */
-	MODE_DROP
-};
-
-/**
- * enum names for ipsec_mode_t.
- */
-extern enum_name_t *ipsec_mode_names;
-
-/**
- * Direction of a policy. These are equal to those
- * defined in xfrm.h, but we want to stay implementation
- * neutral here.
- */
-enum policy_dir_t {
-	/** Policy for inbound traffic */
-	POLICY_IN = 0,
-	/** Policy for outbound traffic */
-	POLICY_OUT = 1,
-	/** Policy for forwarded traffic */
-	POLICY_FWD = 2,
-};
-
-/**
- * enum names for policy_dir_t.
- */
-extern enum_name_t *policy_dir_names;
-
-/**
- * Type of a policy.
- */
-enum policy_type_t {
-	/** Normal IPsec policy */
-	POLICY_IPSEC = 1,
-	/** Passthrough policy (traffic is ignored by IPsec) */
-	POLICY_PASS,
-	/** Drop policy (traffic is discarded) */
-	POLICY_DROP,
-};
-
-/**
- * High-level priority of a policy.
- */
-enum policy_priority_t {
-	/** Default priority */
-	POLICY_PRIORITY_DEFAULT,
-	/** Priority for trap policies */
-	POLICY_PRIORITY_ROUTED,
-	/** Priority for fallback drop policies */
-	POLICY_PRIORITY_FALLBACK,
-};
-
-/**
- * IPComp transform IDs, as in RFC 4306
- */
-enum ipcomp_transform_t {
-	IPCOMP_NONE = 0,
-	IPCOMP_OUI = 1,
-	IPCOMP_DEFLATE = 2,
-	IPCOMP_LZS = 3,
-	IPCOMP_LZJH = 4,
-};
-
-/**
- * enum strings for ipcomp_transform_t.
- */
-extern enum_name_t *ipcomp_transform_names;
-
-/**
- * This struct contains details about IPsec SA(s) tied to a policy.
- */
-struct ipsec_sa_cfg_t {
-	/** mode of SA (tunnel, transport) */
-	ipsec_mode_t mode;
-	/** unique ID */
-	u_int32_t reqid;
-	/** details about ESP/AH */
-	struct {
-		/** TRUE if this protocol is used */
-		bool use;
-		/** SPI for ESP/AH */
-		u_int32_t spi;
-	} esp, ah;
-	/** details about IPComp */
-	struct {
-		/** the IPComp transform used */
-		u_int16_t transform;
-		/** CPI for IPComp */
-		u_int16_t cpi;
-	} ipcomp;
-};
-
-/**
- * A lifetime_cfg_t defines the lifetime limits of an SA.
- *
- * Set any of these values to 0 to ignore.
- */
-struct lifetime_cfg_t {
-	struct {
-		/** Limit before the SA gets invalid. */
-		u_int64_t	life;
-		/** Limit before the SA gets rekeyed. */
-		u_int64_t	rekey;
-		/** The range of a random value subtracted from rekey. */
-		u_int64_t	jitter;
-	} time, bytes, packets;
-};
-
-/**
- * A mark_t defines an optional mark in an IPsec SA.
- */
-struct mark_t {
-	/** Mark value */
-	u_int32_t value;
-	/** Mark mask */
-	u_int32_t mask;
-};
-
-/**
  * Interface to the ipsec subsystem of the kernel.
  *
  * The kernel ipsec interface handles the communication with the kernel
@@ -396,6 +258,17 @@ struct kernel_ipsec_t {
 	bool (*bypass_socket)(kernel_ipsec_t *this, int fd, int family);
 
 	/**
+	 * Enable decapsulation of ESP-in-UDP packets for the given port/socket.
+	 *
+	 * @param fd			socket file descriptor
+	 * @param family		protocol family of the socket
+	 * @param port			the UDP port
+	 * @return				TRUE if UDP decapsulation was enabled successfully
+	 */
+	bool (*enable_udp_decap)(kernel_ipsec_t *this, int fd, int family,
+							 u_int16_t port);
+
+	/**
 	 * Destroy the implementation.
 	 */
 	void (*destroy) (kernel_ipsec_t *this);