aboutsummaryrefslogtreecommitdiffstats
path: root/src/vnet/ipsec
diff options
context:
space:
mode:
authorNeale Ranns <nranns@cisco.com>2019-01-09 21:22:20 -0800
committerDamjan Marion <dmarion@me.com>2019-01-31 20:44:22 +0000
commit17dcec0b940374127f6e1e004fb3ec261a0a3709 (patch)
treef14763efd0dc07c44e9d4d1f71f2a43052dc460a /src/vnet/ipsec
parent6d0106e44e7dff2c9ef0f7052c4023245e9023a8 (diff)
IPSEC: API modernisation
- use enums to enumerate the algoritms and protocols that are supported - use address_t types to simplify encode/deocde - use typedefs of entry objects to get consistency between add/del API and dump Change-Id: I7e7c58c06a150e2439633ba9dca58bc1049677ee Signed-off-by: Neale Ranns <nranns@cisco.com>
Diffstat (limited to 'src/vnet/ipsec')
-rw-r--r--src/vnet/ipsec/ipsec.api334
-rw-r--r--src/vnet/ipsec/ipsec.h6
-rw-r--r--src/vnet/ipsec/ipsec_api.c313
3 files changed, 396 insertions, 257 deletions
diff --git a/src/vnet/ipsec/ipsec.api b/src/vnet/ipsec/ipsec.api
index 2b015f9c223..92c39acefd6 100644
--- a/src/vnet/ipsec/ipsec.api
+++ b/src/vnet/ipsec/ipsec.api
@@ -1,3 +1,4 @@
+/* Hey Emacs use -*- mode: C -*- */
/*
* Copyright (c) 2015-2016 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
@@ -13,7 +14,9 @@
* limitations under the License.
*/
-option version = "2.1.0";
+option version = "3.0.0";
+
+import "vnet/ip/ip_types.api";
/** \brief IPsec: Add/delete Security Policy Database
@param client_index - opaque cookie to identify the sender
@@ -50,121 +53,236 @@ autoreply define ipsec_interface_add_del_spd
u32 spd_id;
};
-/** \brief IPsec: Add/delete Security Policy Database entry
+
+enum ipsec_spd_action
+{
+ /* bypass - no IPsec processing */
+ IPSEC_API_SPD_ACTION_BYPASS = 0,
+ /* discard - discard packet with ICMP processing */
+ IPSEC_API_SPD_ACTION_DISCARD,
+ /* resolve - send request to control plane for SA resolving */
+ IPSEC_API_SPD_ACTION_RESOLVE,
+ /* protect - apply IPsec policy using following parameters */
+ IPSEC_API_SPD_ACTION_PROTECT,
+};
+
+/** \brief IPsec: Security Policy Database entry
See RFC 4301, 4.4.1.1 on how to match packet to selectors
- @param client_index - opaque cookie to identify the sender
- @param context - sender context, to match reply w/ request
- @param is_add - add SPD if non-zero, else delete
@param spd_id - SPD instance id (control plane allocated)
@param priority - priority of SPD entry (non-unique value). Used to order SPD matching - higher priorities match before lower
@param is_outbound - entry applies to outbound traffic if non-zero, otherwise applies to inbound traffic
- @param is_ipv6 - remote/local address are IPv6 if non-zero, else IPv4
@param remote_address_start - start of remote address range to match
@param remote_address_stop - end of remote address range to match
@param local_address_start - start of local address range to match
@param local_address_stop - end of local address range to match
- @param protocol - protocol type to match [0 means any]
+ @param protocol - protocol type to match [0 means any] otherwise IANA value
@param remote_port_start - start of remote port range to match ...
@param remote_port_stop - end of remote port range to match [0 to 65535 means ANY, 65535 to 0 means OPAQUE]
@param local_port_start - start of local port range to match ...
@param local_port_stop - end of remote port range to match [0 to 65535 means ANY, 65535 to 0 means OPAQUE]
- @param policy - 0 = bypass (no IPsec processing), 1 = discard (discard packet with ICMP processing), 2 = resolve (send request to control plane for SA resolving, and discard without ICMP processing), 3 = protect (apply IPsec policy using following parameters)
+ @param policy - action to perform on match
@param sa_id - SAD instance id (control plane allocated)
-
*/
-
-autoreply define ipsec_spd_add_del_entry
+typedef ipsec_spd_entry
{
- u32 client_index;
- u32 context;
- u8 is_add;
-
u32 spd_id;
i32 priority;
u8 is_outbound;
+ u32 sa_id;
+ vl_api_ipsec_spd_action_t policy;
+ u8 protocol;
+
// Selector
- u8 is_ipv6;
u8 is_ip_any;
- u8 remote_address_start[16];
- u8 remote_address_stop[16];
- u8 local_address_start[16];
- u8 local_address_stop[16];
-
- u8 protocol;
+ vl_api_address_t remote_address_start;
+ vl_api_address_t remote_address_stop;
+ vl_api_address_t local_address_start;
+ vl_api_address_t local_address_stop;
u16 remote_port_start;
u16 remote_port_stop;
u16 local_port_start;
u16 local_port_stop;
+};
- // Policy
- u8 policy;
- u32 sa_id;
+/** \brief IPsec: Add/delete Security Policy Database entry
+
+ @param client_index - opaque cookie to identify the sender
+ @param context - sender context, to match reply w/ request
+ @param is_add - add SPD if non-zero, else delete
+ @param entry - Description of the entry to add/dell
+*/
+autoreply define ipsec_spd_entry_add_del
+{
+ u32 client_index;
+ u32 context;
+ u8 is_add;
+ vl_api_ipsec_spd_entry_t entry;
};
-/** \brief IPsec: Add/delete Security Association Database entry
+/** \brief Dump IPsec all SPD IDs
@param client_index - opaque cookie to identify the sender
@param context - sender context, to match reply w/ request
- @param is_add - add SAD entry if non-zero, else delete
+*/
+define ipsec_spds_dump {
+ u32 client_index;
+ u32 context;
+};
- @param sad_id - sad id
+/** \brief Dump IPsec all SPD IDs response
+ @param client_index - opaque cookie to identify the sender
+ @param spd_id - SPD instance id (control plane allocated)
+ @param npolicies - number of policies in SPD
+*/
+define ipsec_spds_details {
+ u32 context;
+ u32 spd_id;
+ u32 npolicies;
+};
- @param spi - security parameter index
+/** \brief Dump ipsec policy database data
+ @param client_index - opaque cookie to identify the sender
+ @param context - sender context, to match reply w/ request
+ @param spd_id - SPD instance id
+ @param sa_id - SA id, optional, set to ~0 to see all policies in SPD
+*/
+define ipsec_spd_dump {
+ u32 client_index;
+ u32 context;
+ u32 spd_id;
+ u32 sa_id;
+};
- @param protocol - 0 = AH, 1 = ESP
+/** \brief IPsec policy database response
+ @param context - sender context which was passed in the request
+ €param entry - The SPD entry.
+ @param bytes - byte count of packets matching this policy
+ @param packets - count of packets matching this policy
+*/
+define ipsec_spd_details {
+ u32 context;
+ vl_api_ipsec_spd_entry_t entry;
+ u64 bytes;
+ u64 packets;
+};
- @param crypto_algorithm - 0 = Null, 1 = AES-CBC-128, 2 = AES-CBC-192, 3 = AES-CBC-256, 4 = 3DES-CBC
- @param crypto_key_length - length of crypto_key in bytes
- @param crypto_key - crypto keying material
+/*
+ * @brief Support cryptographic algorithms
+ */
+enum ipsec_crypto_alg
+{
+ IPSEC_API_CRYPTO_ALG_NONE = 0,
+ IPSEC_API_CRYPTO_ALG_AES_CBC_128,
+ IPSEC_API_CRYPTO_ALG_AES_CBC_192,
+ IPSEC_API_CRYPTO_ALG_AES_CBC_256,
+ IPSEC_API_CRYPTO_ALG_AES_CTR_128,
+ IPSEC_API_CRYPTO_ALG_AES_CTR_192,
+ IPSEC_API_CRYPTO_ALG_AES_CTR_256,
+ IPSEC_API_CRYPTO_ALG_AES_GCM_128,
+ IPSEC_API_CRYPTO_ALG_AES_GCM_192,
+ IPSEC_API_CRYPTO_ALG_AES_GCM_256,
+ IPSEC_API_CRYPTO_ALG_DES_CBC,
+ IPSEC_API_CRYPTO_ALG_3DES_CBC,
+};
- @param integrity_algorithm - 0 = None, 1 = MD5-96, 2 = SHA1-96, 3 = SHA-256, 4 = SHA-384, 5=SHA-512
- @param integrity_key_length - length of integrity_key in bytes
- @param integrity_key - integrity keying material
+/*
+ * @brief Supported Integrity Algorithms
+ */
+enum ipsec_integ_alg
+{
+ IPSEC_API_INTEG_ALG_NONE = 0,
+ /* RFC2403 */
+ IPSEC_API_INTEG_ALG_MD5_96,
+ /* RFC2404 */
+ IPSEC_API_INTEG_ALG_SHA1_96,
+ /* draft-ietf-ipsec-ciph-sha-256-00 */
+ IPSEC_API_INTEG_ALG_SHA_256_96,
+ /* RFC4868 */
+ IPSEC_API_INTEG_ALG_SHA_256_128,
+ /* RFC4868 */
+ IPSEC_API_INTEG_ALG_SHA_384_192,
+ /* RFC4868 */
+ IPSEC_API_INTEG_ALG_SHA_512_256,
+};
+
+enum ipsec_sad_flags
+{
+ IPSEC_API_SAD_FLAG_NONE = 0,
+ /* Enable extended sequence numbers */
+ IPSEC_API_SAD_FLAG_USE_EXTENDED_SEQ_NUM = 0x01,
+ /* Enable Anti-replay */
+ IPSEC_API_SAD_FLAG_USE_ANTI_REPLAY = 0x02,
+ /* IPsec tunnel mode if non-zero, else transport mode */
+ IPSEC_API_SAD_FLAG_IS_TUNNEL = 0x04,
+ /* IPsec tunnel mode is IPv6 if non-zero,
+ * else IPv4 tunnel only valid if is_tunnel is non-zero */
+ IPSEC_API_SAD_FLAG_IS_TUNNEL_V6 = 0x08,
+ /* enable UDP encapsulation for NAT traversal */
+ IPSEC_API_SAD_FLAG_UDP_ENCAP = 0x10,
+};
+
+enum ipsec_proto
+{
+ IPSEC_API_PROTO_ESP,
+ IPSEC_API_PROTO_AH,
+};
- @param use_extended_sequence_number - use ESN when non-zero
+typedef key
+{
+ /* the length of the key */
+ u8 length;
+ /* The data for the key */
+ u8 data[128];
+};
- @param is_tunnel - IPsec tunnel mode if non-zero, else transport mode
- @param is_tunnel_ipv6 - IPsec tunnel mode is IPv6 if non-zero, else IPv4 tunnel only valid if is_tunnel is non-zero
+/** \brief IPsec: Security Association Database entry
+ @param client_index - opaque cookie to identify the sender
+ @param context - sender context, to match reply w/ request
+ @param is_add - add SAD entry if non-zero, else delete
+ @param sad_id - sad id
+ @param spi - security parameter index
+ @param protocol - 0 = AH, 1 = ESP
+ @param crypto_algorithm - a supported crypto algorithm
+ @param crypto_key - crypto keying material
+ @param integrity_algorithm - one of the supported algorithms
+ @param integrity_key - integrity keying material
@param tunnel_src_address - IPsec tunnel source address IPv6 if is_tunnel_ipv6 is non-zero, else IPv4. Only valid if is_tunnel is non-zero
@param tunnel_dst_address - IPsec tunnel destination address IPv6 if is_tunnel_ipv6 is non-zero, else IPv4. Only valid if is_tunnel is non-zero
- @param udp_encap - enable UDP encapsulation for NAT traversal
-
- To be added:
- Anti-replay
- IPsec tunnel address copy mode (to support GDOI)
*/
-
-autoreply define ipsec_sad_add_del_entry
+typedef ipsec_sad_entry
{
- u32 client_index;
- u32 context;
- u8 is_add;
-
u32 sad_id;
u32 spi;
- u8 protocol;
+ vl_api_ipsec_proto_t protocol;
- u8 crypto_algorithm;
- u8 crypto_key_length;
- u8 crypto_key[128];
+ vl_api_ipsec_crypto_alg_t crypto_algorithm;
+ vl_api_key_t crypto_key;
- u8 integrity_algorithm;
- u8 integrity_key_length;
- u8 integrity_key[128];
+ vl_api_ipsec_integ_alg_t integrity_algorithm;
+ vl_api_key_t integrity_key;
- u8 use_extended_sequence_number;
- u8 use_anti_replay;
+ vl_api_ipsec_sad_flags_t flags;
- u8 is_tunnel;
- u8 is_tunnel_ipv6;
- u8 tunnel_src_address[16];
- u8 tunnel_dst_address[16];
- u8 udp_encap;
+ vl_api_address_t tunnel_src;
+ vl_api_address_t tunnel_dst;
+};
+
+/** \brief IPsec: Add/delete Security Association Database entry
+ @param client_index - opaque cookie to identify the sender
+ @param context - sender context, to match reply w/ request
+ @param entry - Entry to add or delete
+ */
+autoreply define ipsec_sad_entry_add_del
+{
+ u32 client_index;
+ u32 context;
+ u8 is_add;
+ vl_api_ipsec_sad_entry_t entry;
};
/** \brief IPsec: Update Security Association keys
@@ -173,10 +291,7 @@ autoreply define ipsec_sad_add_del_entry
@param sa_id - sa id
- @param crypto_key_length - length of crypto_key in bytes
@param crypto_key - crypto keying material
-
- @param integrity_key_length - length of integrity_key in bytes
@param integrity_key - integrity keying material
*/
@@ -187,11 +302,8 @@ autoreply define ipsec_sa_set_key
u32 sa_id;
- u8 crypto_key_length;
- u8 crypto_key[128];
-
- u8 integrity_key_length;
- u8 integrity_key[128];
+ vl_api_key_t crypto_key;
+ vl_api_key_t integrity_key;
};
/** \brief IKEv2: Add/delete profile
@@ -441,80 +553,6 @@ autoreply define ikev2_initiate_rekey_child_sa
u32 ispi;
};
-/** \brief Dump IPsec all SPD IDs
- @param client_index - opaque cookie to identify the sender
- @param context - sender context, to match reply w/ request
-*/
-define ipsec_spds_dump {
- u32 client_index;
- u32 context;
-};
-
-/** \brief Dump IPsec all SPD IDs response
- @param client_index - opaque cookie to identify the sender
- @param spd_id - SPD instance id (control plane allocated)
- @param npolicies - number of policies in SPD
-*/
-define ipsec_spds_details {
- u32 context;
- u32 spd_id;
- u32 npolicies;
-};
-
-/** \brief Dump ipsec policy database data
- @param client_index - opaque cookie to identify the sender
- @param context - sender context, to match reply w/ request
- @param spd_id - SPD instance id
- @param sa_id - SA id, optional, set to ~0 to see all policies in SPD
-*/
-define ipsec_spd_dump {
- u32 client_index;
- u32 context;
- u32 spd_id;
- u32 sa_id;
-};
-
-/** \brief IPsec policy database response
- @param context - sender context which was passed in the request
- @param spd_id - SPD instance id
- @param priority - numeric value to control policy evaluation order
- @param is_outbound - [1|0] to indicate if direction is [out|in]bound
- @param is_ipv6 - [1|0] to indicate if address family is ipv[6|4]
- @param local_start_addr - first address in local traffic selector range
- @param local_stop_addr - last address in local traffic selector range
- @param local_start_port - first port in local traffic selector range
- @param local_stop_port - last port in local traffic selector range
- @param remote_start_addr - first address in remote traffic selector range
- @param remote_stop_addr - last address in remote traffic selector range
- @param remote_start_port - first port in remote traffic selector range
- @param remote_stop_port - last port in remote traffic selector range
- @param protocol - traffic selector protocol
- @param policy - policy action
- @param sa_id - SA id
- @param bytes - byte count of packets matching this policy
- @param packets - count of packets matching this policy
-*/
-define ipsec_spd_details {
- u32 context;
- u32 spd_id;
- i32 priority;
- u8 is_outbound;
- u8 is_ipv6;
- u8 local_start_addr[16];
- u8 local_stop_addr[16];
- u16 local_start_port;
- u16 local_stop_port;
- u8 remote_start_addr[16];
- u8 remote_stop_addr[16];
- u16 remote_start_port;
- u16 remote_stop_port;
- u8 protocol;
- u8 policy;
- u32 sa_id;
- u64 bytes;
- u64 packets;
-};
-
/** \brief IPsec: Get SPD interfaces
@param client_index - opaque cookie to identify the sender
@param context - sender context, to match reply w/ request
@@ -728,7 +766,7 @@ define ipsec_backend_dump {
define ipsec_backend_details {
u32 context;
u8 name[128];
- u8 protocol;
+ vl_api_ipsec_proto_t protocol;
u8 index;
u8 active;
};
@@ -742,7 +780,7 @@ define ipsec_backend_details {
autoreply define ipsec_select_backend {
u32 client_index;
u32 context;
- u8 protocol;
+ vl_api_ipsec_proto_t protocol;
u8 index;
};
diff --git a/src/vnet/ipsec/ipsec.h b/src/vnet/ipsec/ipsec.h
index 691bc071bba..93369fe9f8c 100644
--- a/src/vnet/ipsec/ipsec.h
+++ b/src/vnet/ipsec/ipsec.h
@@ -68,9 +68,11 @@ typedef enum
#define _(v, f, s) IPSEC_POLICY_ACTION_##f = v,
foreach_ipsec_policy_action
#undef _
- IPSEC_POLICY_N_ACTION,
} ipsec_policy_action_t;
+#define IPSEC_POLICY_N_ACTION (IPSEC_POLICY_ACTION_PROTECT + 1)
+
+
#define foreach_ipsec_crypto_alg \
_ (0, NONE, "none") \
_ (1, AES_CBC_128, "aes-cbc-128") \
@@ -220,7 +222,7 @@ typedef struct
port_range_t rport;
// Policy
- u8 policy;
+ ipsec_policy_action_t policy;
u32 sa_id;
u32 sa_index;
diff --git a/src/vnet/ipsec/ipsec_api.c b/src/vnet/ipsec/ipsec_api.c
index fc09f77db6c..eb78dbdd319 100644
--- a/src/vnet/ipsec/ipsec_api.c
+++ b/src/vnet/ipsec/ipsec_api.c
@@ -23,6 +23,7 @@
#include <vnet/interface.h>
#include <vnet/api_errno.h>
#include <vnet/ip/ip.h>
+#include <vnet/ip/ip_types_api.h>
#include <vnet/fib/fib.h>
#include <vnet/vnet_msg_enum.h>
@@ -51,8 +52,8 @@
#define foreach_vpe_api_msg \
_(IPSEC_SPD_ADD_DEL, ipsec_spd_add_del) \
_(IPSEC_INTERFACE_ADD_DEL_SPD, ipsec_interface_add_del_spd) \
-_(IPSEC_SPD_ADD_DEL_ENTRY, ipsec_spd_add_del_entry) \
-_(IPSEC_SAD_ADD_DEL_ENTRY, ipsec_sad_add_del_entry) \
+_(IPSEC_SPD_ENTRY_ADD_DEL, ipsec_spd_entry_add_del) \
+_(IPSEC_SAD_ENTRY_ADD_DEL, ipsec_sad_entry_add_del) \
_(IPSEC_SA_SET_KEY, ipsec_sa_set_key) \
_(IPSEC_SA_DUMP, ipsec_sa_dump) \
_(IPSEC_SPDS_DUMP, ipsec_spds_dump) \
@@ -119,11 +120,29 @@ static void vl_api_ipsec_interface_add_del_spd_t_handler
REPLY_MACRO (VL_API_IPSEC_INTERFACE_ADD_DEL_SPD_REPLY);
}
-static void vl_api_ipsec_spd_add_del_entry_t_handler
- (vl_api_ipsec_spd_add_del_entry_t * mp)
+static int
+ipsec_spd_action_decode (vl_api_ipsec_spd_action_t in,
+ ipsec_policy_action_t * out)
+{
+ in = clib_net_to_host_u32 (in);
+
+ switch (in)
+ {
+#define _(v,f,s) case IPSEC_API_SPD_ACTION_##f: \
+ *out = IPSEC_POLICY_ACTION_##f; \
+ return (0);
+ foreach_ipsec_policy_action
+#undef _
+ }
+ return (VNET_API_ERROR_UNIMPLEMENTED);
+}
+
+static void vl_api_ipsec_spd_entry_add_del_t_handler
+ (vl_api_ipsec_spd_entry_add_del_t * mp)
{
vlib_main_t *vm __attribute__ ((unused)) = vlib_get_main ();
- vl_api_ipsec_spd_add_del_entry_reply_t *rmp;
+ vl_api_ipsec_spd_entry_add_del_reply_t *rmp;
+ ip46_type_t itype;
int rv;
#if WITH_LIBSSL > 0
@@ -131,45 +150,42 @@ static void vl_api_ipsec_spd_add_del_entry_t_handler
clib_memset (&p, 0, sizeof (p));
- p.id = ntohl (mp->spd_id);
- p.priority = ntohl (mp->priority);
- p.is_outbound = mp->is_outbound;
- p.is_ipv6 = mp->is_ipv6;
+ p.id = ntohl (mp->entry.spd_id);
+ p.priority = ntohl (mp->entry.priority);
+ p.is_outbound = mp->entry.is_outbound;
+
+ itype = ip_address_decode (&mp->entry.remote_address_start, &p.raddr.start);
+ ip_address_decode (&mp->entry.remote_address_stop, &p.raddr.stop);
+ ip_address_decode (&mp->entry.local_address_start, &p.laddr.start);
+ ip_address_decode (&mp->entry.local_address_stop, &p.laddr.stop);
+
+ p.is_ipv6 = (itype == IP46_TYPE_IP6);
+
+ p.protocol = mp->entry.protocol;
+ p.rport.start = ntohs (mp->entry.remote_port_start);
+ p.rport.stop = ntohs (mp->entry.remote_port_stop);
+ p.lport.start = ntohs (mp->entry.local_port_start);
+ p.lport.stop = ntohs (mp->entry.local_port_stop);
+
+ rv = ipsec_spd_action_decode (mp->entry.policy, &p.policy);
+
+ if (rv)
+ goto out;
- if (mp->is_ipv6 || mp->is_ip_any)
- {
- clib_memcpy (&p.raddr.start, mp->remote_address_start, 16);
- clib_memcpy (&p.raddr.stop, mp->remote_address_stop, 16);
- clib_memcpy (&p.laddr.start, mp->local_address_start, 16);
- clib_memcpy (&p.laddr.stop, mp->local_address_stop, 16);
- }
- else
- {
- clib_memcpy (&p.raddr.start.ip4.data, mp->remote_address_start, 4);
- clib_memcpy (&p.raddr.stop.ip4.data, mp->remote_address_stop, 4);
- clib_memcpy (&p.laddr.start.ip4.data, mp->local_address_start, 4);
- clib_memcpy (&p.laddr.stop.ip4.data, mp->local_address_stop, 4);
- }
- p.protocol = mp->protocol;
- p.rport.start = ntohs (mp->remote_port_start);
- p.rport.stop = ntohs (mp->remote_port_stop);
- p.lport.start = ntohs (mp->local_port_start);
- p.lport.stop = ntohs (mp->local_port_stop);
/* policy action resolve unsupported */
- if (mp->policy == IPSEC_POLICY_ACTION_RESOLVE)
+ if (p.policy == IPSEC_POLICY_ACTION_RESOLVE)
{
clib_warning ("unsupported action: 'resolve'");
rv = VNET_API_ERROR_UNIMPLEMENTED;
goto out;
}
- p.policy = mp->policy;
- p.sa_id = ntohl (mp->sa_id);
+ p.sa_id = ntohl (mp->entry.sa_id);
rv = ipsec_add_del_policy (vm, &p, mp->is_add);
if (rv)
goto out;
- if (mp->is_ip_any)
+ if (mp->entry.is_ip_any)
{
p.is_ipv6 = 1;
rv = ipsec_add_del_policy (vm, &p, mp->is_add);
@@ -180,14 +196,89 @@ static void vl_api_ipsec_spd_add_del_entry_t_handler
#endif
out:
- REPLY_MACRO (VL_API_IPSEC_SPD_ADD_DEL_ENTRY_REPLY);
+ REPLY_MACRO (VL_API_IPSEC_SPD_ENTRY_ADD_DEL_REPLY);
+}
+
+static int
+ipsec_proto_decode (vl_api_ipsec_proto_t in, ipsec_protocol_t * out)
+{
+ in = clib_net_to_host_u32 (in);
+
+ switch (in)
+ {
+ case IPSEC_API_PROTO_ESP:
+ *out = IPSEC_PROTOCOL_ESP;
+ return (0);
+ case IPSEC_API_PROTO_AH:
+ *out = IPSEC_PROTOCOL_AH;
+ return (0);
+ }
+ return (VNET_API_ERROR_UNIMPLEMENTED);
+}
+
+static int
+ipsec_crypto_algo_decode (vl_api_ipsec_crypto_alg_t in,
+ ipsec_crypto_alg_t * out)
+{
+ in = clib_net_to_host_u32 (in);
+
+ switch (in)
+ {
+#define _(v,f,s) case IPSEC_API_CRYPTO_ALG_##f: \
+ *out = IPSEC_CRYPTO_ALG_##f; \
+ return (0);
+ foreach_ipsec_crypto_alg
+#undef _
+ }
+ return (VNET_API_ERROR_UNIMPLEMENTED);
+}
+
+static int
+ipsec_integ_algo_decode (vl_api_ipsec_integ_alg_t in, ipsec_integ_alg_t * out)
+{
+ in = clib_net_to_host_u32 (in);
+
+ switch (in)
+ {
+#define _(v,f,s) case IPSEC_API_INTEG_ALG_##f: \
+ *out = IPSEC_INTEG_ALG_##f; \
+ return (0);
+ foreach_ipsec_integ_alg
+#undef _
+ }
+ return (VNET_API_ERROR_UNIMPLEMENTED);
+}
+
+static void
+vl_api_ipsec_key_decode (const vl_api_key_t * key, u8 * len, u8 out[128])
+{
+ *len = key->length;
+ clib_memcpy (out, key->data, key->length);
+}
+
+static void
+vl_api_ipsec_sad_flags_decode (vl_api_ipsec_sad_flags_t in, ipsec_sa_t * sa)
+{
+ in = clib_net_to_host_u32 (in);
+
+ if (in & IPSEC_API_SAD_FLAG_USE_EXTENDED_SEQ_NUM)
+ sa->use_esn = 1;
+ if (in & IPSEC_API_SAD_FLAG_USE_ANTI_REPLAY)
+ sa->use_anti_replay = 1;
+ if (in & IPSEC_API_SAD_FLAG_IS_TUNNEL)
+ sa->is_tunnel = 1;
+ if (in & IPSEC_API_SAD_FLAG_IS_TUNNEL_V6)
+ sa->is_tunnel_ip6 = 1;
+ if (in & IPSEC_API_SAD_FLAG_UDP_ENCAP)
+ sa->udp_encap = 1;
}
-static void vl_api_ipsec_sad_add_del_entry_t_handler
- (vl_api_ipsec_sad_add_del_entry_t * mp)
+
+static void vl_api_ipsec_sad_entry_add_del_t_handler
+ (vl_api_ipsec_sad_entry_add_del_t * mp)
{
vlib_main_t *vm __attribute__ ((unused)) = vlib_get_main ();
- vl_api_ipsec_sad_add_del_entry_reply_t *rmp;
+ vl_api_ipsec_sad_entry_add_del_reply_t *rmp;
int rv;
#if WITH_LIBSSL > 0
ipsec_main_t *im = &ipsec_main;
@@ -195,47 +286,36 @@ static void vl_api_ipsec_sad_add_del_entry_t_handler
clib_memset (&sa, 0, sizeof (sa));
- sa.id = ntohl (mp->sad_id);
- sa.spi = ntohl (mp->spi);
- sa.protocol = mp->protocol;
- /* check for unsupported crypto-alg */
- if (mp->crypto_algorithm >= IPSEC_CRYPTO_N_ALG)
- {
- clib_warning ("unsupported crypto-alg: '%U'", format_ipsec_crypto_alg,
- mp->crypto_algorithm);
- rv = VNET_API_ERROR_UNIMPLEMENTED;
- goto out;
- }
- sa.crypto_alg = mp->crypto_algorithm;
- sa.crypto_key_len = mp->crypto_key_length;
- clib_memcpy (&sa.crypto_key, mp->crypto_key, sizeof (sa.crypto_key));
- /* check for unsupported integ-alg */
- if (mp->integrity_algorithm >= IPSEC_INTEG_N_ALG)
- {
- clib_warning ("unsupported integ-alg: '%U'", format_ipsec_integ_alg,
- mp->integrity_algorithm);
- rv = VNET_API_ERROR_UNIMPLEMENTED;
- goto out;
- }
+ sa.id = ntohl (mp->entry.sad_id);
+ sa.spi = ntohl (mp->entry.spi);
- sa.integ_alg = mp->integrity_algorithm;
- sa.integ_key_len = mp->integrity_key_length;
- clib_memcpy (&sa.integ_key, mp->integrity_key, sizeof (sa.integ_key));
- sa.use_esn = mp->use_extended_sequence_number;
- sa.is_tunnel = mp->is_tunnel;
- sa.is_tunnel_ip6 = mp->is_tunnel_ipv6;
- sa.udp_encap = mp->udp_encap;
- if (sa.is_tunnel_ip6)
- {
- clib_memcpy (&sa.tunnel_src_addr, mp->tunnel_src_address, 16);
- clib_memcpy (&sa.tunnel_dst_addr, mp->tunnel_dst_address, 16);
- }
- else
+ rv = ipsec_proto_decode (mp->entry.protocol, &sa.protocol);
+
+ if (rv)
+ goto out;
+
+ rv = ipsec_crypto_algo_decode (mp->entry.crypto_algorithm, &sa.crypto_alg);
+
+ if (rv)
+ goto out;
+
+ rv = ipsec_integ_algo_decode (mp->entry.integrity_algorithm, &sa.integ_alg);
+
+ if (rv)
+ goto out;
+
+ vl_api_ipsec_key_decode (&mp->entry.crypto_key,
+ &sa.crypto_key_len, sa.crypto_key);
+ vl_api_ipsec_key_decode (&mp->entry.integrity_key,
+ &sa.integ_key_len, sa.integ_key);
+
+ vl_api_ipsec_sad_flags_decode (mp->entry.flags, &sa);
+
+ if (sa.is_tunnel_ip6 || sa.is_tunnel)
{
- clib_memcpy (&sa.tunnel_src_addr.ip4.data, mp->tunnel_src_address, 4);
- clib_memcpy (&sa.tunnel_dst_addr.ip4.data, mp->tunnel_dst_address, 4);
+ ip_address_decode (&mp->entry.tunnel_src, &sa.tunnel_src_addr);
+ ip_address_decode (&mp->entry.tunnel_dst, &sa.tunnel_dst_addr);
}
- sa.use_anti_replay = mp->use_anti_replay;
clib_error_t *err = ipsec_check_support_cb (im, &sa);
if (err)
@@ -252,7 +332,7 @@ static void vl_api_ipsec_sad_add_del_entry_t_handler
#endif
out:
- REPLY_MACRO (VL_API_IPSEC_SAD_ADD_DEL_ENTRY_REPLY);
+ REPLY_MACRO (VL_API_IPSEC_SAD_ENTRY_ADD_DEL_REPLY);
}
static void
@@ -293,6 +373,22 @@ vl_api_ipsec_spds_dump_t_handler (vl_api_ipsec_spds_dump_t * mp)
#endif
}
+vl_api_ipsec_spd_action_t
+ipsec_spd_action_encode (ipsec_policy_action_t in)
+{
+ vl_api_ipsec_spd_action_t out = IPSEC_API_SPD_ACTION_BYPASS;
+
+ switch (in)
+ {
+#define _(v,f,s) case IPSEC_POLICY_ACTION_##f: \
+ out = IPSEC_API_SPD_ACTION_##f; \
+ break;
+ foreach_ipsec_policy_action
+#undef _
+ }
+ return (clib_host_to_net_u32 (out));
+}
+
static void
send_ipsec_spd_details (ipsec_policy_t * p, vl_api_registration_t * reg,
u32 context)
@@ -304,31 +400,26 @@ send_ipsec_spd_details (ipsec_policy_t * p, vl_api_registration_t * reg,
mp->_vl_msg_id = ntohs (VL_API_IPSEC_SPD_DETAILS);
mp->context = context;
- mp->spd_id = htonl (p->id);
- mp->priority = htonl (p->priority);
- mp->is_outbound = p->is_outbound;
- mp->is_ipv6 = p->is_ipv6;
- if (p->is_ipv6)
- {
- memcpy (mp->local_start_addr, &p->laddr.start.ip6, 16);
- memcpy (mp->local_stop_addr, &p->laddr.stop.ip6, 16);
- memcpy (mp->remote_start_addr, &p->raddr.start.ip6, 16);
- memcpy (mp->remote_stop_addr, &p->raddr.stop.ip6, 16);
- }
- else
- {
- memcpy (mp->local_start_addr, &p->laddr.start.ip4, 4);
- memcpy (mp->local_stop_addr, &p->laddr.stop.ip4, 4);
- memcpy (mp->remote_start_addr, &p->raddr.start.ip4, 4);
- memcpy (mp->remote_stop_addr, &p->raddr.stop.ip4, 4);
- }
- mp->local_start_port = htons (p->lport.start);
- mp->local_stop_port = htons (p->lport.stop);
- mp->remote_start_port = htons (p->rport.start);
- mp->remote_stop_port = htons (p->rport.stop);
- mp->protocol = p->protocol;
- mp->policy = p->policy;
- mp->sa_id = htonl (p->sa_id);
+ mp->entry.spd_id = htonl (p->id);
+ mp->entry.priority = htonl (p->priority);
+ mp->entry.is_outbound = p->is_outbound;
+
+ ip_address_encode (&p->laddr.start, IP46_TYPE_ANY,
+ &mp->entry.local_address_start);
+ ip_address_encode (&p->laddr.stop, IP46_TYPE_ANY,
+ &mp->entry.local_address_stop);
+ ip_address_encode (&p->raddr.start, IP46_TYPE_ANY,
+ &mp->entry.remote_address_start);
+ ip_address_encode (&p->raddr.stop, IP46_TYPE_ANY,
+ &mp->entry.remote_address_stop);
+ mp->entry.local_port_start = htons (p->lport.start);
+ mp->entry.local_port_stop = htons (p->lport.stop);
+ mp->entry.remote_port_start = htons (p->rport.start);
+ mp->entry.remote_port_stop = htons (p->rport.stop);
+ mp->entry.protocol = p->protocol;
+ mp->entry.policy = ipsec_spd_action_encode (p->policy);
+ mp->entry.sa_id = htonl (p->sa_id);
+
mp->bytes = clib_host_to_net_u64 (p->counter.bytes);
mp->packets = clib_host_to_net_u64 (p->counter.packets);
@@ -432,10 +523,11 @@ vl_api_ipsec_sa_set_key_t_handler (vl_api_ipsec_sa_set_key_t * mp)
#if WITH_LIBSSL > 0
ipsec_sa_t sa;
sa.id = ntohl (mp->sa_id);
- sa.crypto_key_len = mp->crypto_key_length;
- clib_memcpy (&sa.crypto_key, mp->crypto_key, sizeof (sa.crypto_key));
- sa.integ_key_len = mp->integrity_key_length;
- clib_memcpy (&sa.integ_key, mp->integrity_key, sizeof (sa.integ_key));
+
+ vl_api_ipsec_key_decode (&mp->crypto_key,
+ &sa.crypto_key_len, sa.crypto_key);
+ vl_api_ipsec_key_decode (&mp->integrity_key,
+ &sa.integ_key_len, sa.integ_key);
rv = ipsec_set_sa_key (vm, &sa);
#else
@@ -1033,7 +1125,7 @@ vl_api_ipsec_backend_dump_t_handler (vl_api_ipsec_backend_dump_t * mp)
mp->context = context;
snprintf ((char *)mp->name, sizeof (mp->name), "%.*s", vec_len (ab->name),
ab->name);
- mp->protocol = IPSEC_PROTOCOL_AH;
+ mp->protocol = ntohl (IPSEC_API_PROTO_AH);
mp->index = ab - im->ah_backends;
mp->active = mp->index == im->ah_current_backend ? 1 : 0;
vl_api_send_msg (rp, (u8 *)mp);
@@ -1045,7 +1137,7 @@ vl_api_ipsec_backend_dump_t_handler (vl_api_ipsec_backend_dump_t * mp)
mp->context = context;
snprintf ((char *)mp->name, sizeof (mp->name), "%.*s", vec_len (eb->name),
eb->name);
- mp->protocol = IPSEC_PROTOCOL_ESP;
+ mp->protocol = ntohl (IPSEC_API_PROTO_ESP);
mp->index = eb - im->esp_backends;
mp->active = mp->index == im->esp_current_backend ? 1 : 0;
vl_api_send_msg (rp, (u8 *)mp);
@@ -1058,14 +1150,21 @@ vl_api_ipsec_select_backend_t_handler (vl_api_ipsec_select_backend_t * mp)
{
ipsec_main_t *im = &ipsec_main;
vl_api_ipsec_select_backend_reply_t *rmp;
+ ipsec_protocol_t protocol;
int rv = 0;
if (pool_elts (im->sad) > 0)
{
rv = VNET_API_ERROR_INSTANCE_IN_USE;
goto done;
}
+
+ rv = ipsec_proto_decode (mp->protocol, &protocol);
+
+ if (rv)
+ goto done;
+
#if WITH_LIBSSL > 0
- switch (mp->protocol)
+ switch (protocol)
{
case IPSEC_PROTOCOL_ESP:
if (pool_is_free_index (im->esp_backends, mp->index))