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authorMatthew Smith <mgsmith@netgate.com>2017-09-26 13:33:44 -0500
committerDamjan Marion <dmarion.lists@gmail.com>2017-10-04 09:37:03 +0000
commit28029530963223c5c3b94f7a2f9d1343662a1a04 (patch)
treeb4934a6e574ac2815d43f8a3079211f11bf6ab42 /src/vnet
parent780fc39506759127f59840e37be9c03d278a2f6b (diff)
Add API support to dump IPsec SAs
Add an API request message type to dump IPsec SAs. Either all IPsec SAs can be dumped or it can be limited to a single SA ID (numeric ID set at creation time - not an index). Add a handler for incoming messages with the new request type. Add an API response message type containing the data for an IPsec SA. Add VAT support for new message type. Change-Id: Id7828d000efc637dee7f988a87d3f707a8b466b7 Signed-off-by: Matthew Smith <mgsmith@netgate.com>
Diffstat (limited to 'src/vnet')
-rw-r--r--src/vnet/ipsec/ipsec.api69
-rw-r--r--src/vnet/ipsec/ipsec_api.c106
2 files changed, 175 insertions, 0 deletions
diff --git a/src/vnet/ipsec/ipsec.api b/src/vnet/ipsec/ipsec.api
index 011b0d4b1ff..4e283b6069e 100644
--- a/src/vnet/ipsec/ipsec.api
+++ b/src/vnet/ipsec/ipsec.api
@@ -544,6 +544,75 @@ define ipsec_tunnel_if_add_del_reply {
u32 sw_if_index;
};
+/** \brief Dump IPsec security association
+ @param client_index - opaque cookie to identify the sender
+ @param context - sender context, to match reply w/ request
+ @param sa_id - optional ID of an SA to dump, if ~0 dump all SAs in SAD
+*/
+define ipsec_sa_dump {
+ u32 client_index;
+ u32 context;
+ u32 sa_id;
+};
+
+/** \brief IPsec security association database response
+ @param context - sender context which was passed in the request
+ @param sa_id - SA ID, policy-based SAs >=0, tunnel interface SAs = 0
+ @param sw_if_index - sw_if_index of tunnel interface, policy-based SAs = ~0
+ @param spi - security parameter index
+ @param protocol - IPsec protocol (value from ipsec_protocol_t)
+ @param crypto_alg - crypto algorithm (value from ipsec_crypto_alg_t)
+ @param crypto_key_len - length of crypto_key in bytes
+ @param crypto_key - crypto keying material
+ @param integ_alg - integrity algorithm (value from ipsec_integ_alg_t)
+ @param integ_key_len - length of integ_key in bytes
+ @param integ_key - integrity keying material
+ @param use_esn - using extended sequence numbers when non-zero
+ @param use_anti_replay - using anti-replay window when non-zero
+ @param is_tunnel - IPsec tunnel mode when non-zero, else transport mode
+ @param is_tunnel_ipv6 - If using tunnel mode, endpoints are IPv6
+ @param tunnel_src_addr - Tunnel source address if using tunnel mode
+ @param tunnel_dst_addr - Tunnel destination address is using tunnel mode
+ @param salt - 4 byte salt
+ @param seq - current sequence number for outbound
+ @param seq_hi - high 32 bits of ESN for outbound
+ @param last_seq - highest sequence number received inbound
+ @param last_seq_hi - high 32 bits of highest ESN received inbound
+ @param replay_window - bit map of seq nums received relative to last_seq if using anti-replay
+ @param total_data_size - total bytes sent or received
+*/
+define ipsec_sa_details {
+ u32 context;
+ u32 sa_id;
+ u32 sw_if_index;
+
+ u32 spi;
+ u8 protocol;
+
+ u8 crypto_alg;
+ u8 crypto_key_len;
+ u8 crypto_key[128];
+
+ u8 integ_alg;
+ u8 integ_key_len;
+ u8 integ_key[128];
+
+ u8 use_esn;
+ u8 use_anti_replay;
+
+ u8 is_tunnel;
+ u8 is_tunnel_ip6;
+ u8 tunnel_src_addr[16];
+ u8 tunnel_dst_addr[16];
+
+ u32 salt;
+ u64 seq_outbound;
+ u64 last_seq_inbound;
+ u64 replay_window;
+
+ u64 total_data_size;
+};
+
/*
* Local Variables:
* eval: (c-set-style "gnu")
diff --git a/src/vnet/ipsec/ipsec_api.c b/src/vnet/ipsec/ipsec_api.c
index 3a5b89feb7d..ae62ade35fb 100644
--- a/src/vnet/ipsec/ipsec_api.c
+++ b/src/vnet/ipsec/ipsec_api.c
@@ -53,6 +53,7 @@ _(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_SA_SET_KEY, ipsec_sa_set_key) \
+_(IPSEC_SA_DUMP, ipsec_sa_dump) \
_(IPSEC_SPD_DUMP, ipsec_spd_dump) \
_(IPSEC_TUNNEL_IF_ADD_DEL, ipsec_tunnel_if_add_del) \
_(IKEV2_PROFILE_ADD_DEL, ikev2_profile_add_del) \
@@ -402,6 +403,111 @@ vl_api_ipsec_tunnel_if_add_del_t_handler (vl_api_ipsec_tunnel_if_add_del_t *
}));
}
+static void
+send_ipsec_sa_details (ipsec_sa_t * sa, unix_shared_memory_queue_t * q,
+ u32 context, u32 sw_if_index)
+{
+ vl_api_ipsec_sa_details_t *mp;
+
+ mp = vl_msg_api_alloc (sizeof (*mp));
+ memset (mp, 0, sizeof (*mp));
+ mp->_vl_msg_id = ntohs (VL_API_IPSEC_SA_DETAILS);
+ mp->context = context;
+
+ mp->sa_id = htonl (sa->id);
+ mp->sw_if_index = htonl (sw_if_index);
+
+ mp->spi = htonl (sa->spi);
+ mp->protocol = sa->protocol;
+
+ mp->crypto_alg = sa->crypto_alg;
+ mp->crypto_key_len = sa->crypto_key_len;
+ memcpy (mp->crypto_key, sa->crypto_key, sa->crypto_key_len);
+
+ mp->integ_alg = sa->integ_alg;
+ mp->integ_key_len = sa->integ_key_len;
+ memcpy (mp->integ_key, sa->integ_key, sa->integ_key_len);
+
+ mp->use_esn = sa->use_esn;
+ mp->use_anti_replay = sa->use_anti_replay;
+
+ mp->is_tunnel = sa->is_tunnel;
+ mp->is_tunnel_ip6 = sa->is_tunnel_ip6;
+
+ if (sa->is_tunnel)
+ {
+ if (sa->is_tunnel_ip6)
+ {
+ memcpy (mp->tunnel_src_addr, &sa->tunnel_src_addr.ip6, 16);
+ memcpy (mp->tunnel_dst_addr, &sa->tunnel_dst_addr.ip6, 16);
+ }
+ else
+ {
+ memcpy (mp->tunnel_src_addr, &sa->tunnel_src_addr.ip4, 4);
+ memcpy (mp->tunnel_dst_addr, &sa->tunnel_dst_addr.ip4, 4);
+ }
+ }
+
+ mp->salt = clib_host_to_net_u32 (sa->salt);
+ mp->seq_outbound = clib_host_to_net_u64 (((u64) sa->seq));
+ mp->last_seq_inbound = clib_host_to_net_u64 (((u64) sa->last_seq));
+ if (sa->use_esn)
+ {
+ mp->seq_outbound |= (u64) (clib_host_to_net_u32 (sa->seq_hi));
+ mp->last_seq_inbound |= (u64) (clib_host_to_net_u32 (sa->last_seq_hi));
+ }
+ if (sa->use_anti_replay)
+ mp->replay_window = clib_host_to_net_u64 (sa->replay_window);
+ mp->total_data_size = clib_host_to_net_u64 (sa->total_data_size);
+
+ vl_msg_api_send_shmem (q, (u8 *) & mp);
+}
+
+
+static void
+vl_api_ipsec_sa_dump_t_handler (vl_api_ipsec_sa_dump_t * mp)
+{
+ unix_shared_memory_queue_t *q;
+ ipsec_main_t *im = &ipsec_main;
+ vnet_main_t *vnm = im->vnet_main;
+ ipsec_sa_t *sa;
+ ipsec_tunnel_if_t *t;
+ u32 *sa_index_to_tun_if_index = 0;
+
+#if WITH_LIBSSL > 0
+ q = vl_api_client_index_to_input_queue (mp->client_index);
+ if (q == 0 || pool_elts (im->sad) == 0)
+ return;
+
+ vec_validate_init_empty (sa_index_to_tun_if_index, vec_len (im->sad) - 1,
+ ~0);
+
+ /* *INDENT-OFF* */
+ pool_foreach (t, im->tunnel_interfaces,
+ ({
+ vnet_hw_interface_t *hi;
+ u32 sw_if_index = ~0;
+
+ hi = vnet_get_hw_interface (vnm, t->hw_if_index);
+ sw_if_index = hi->sw_if_index;
+ sa_index_to_tun_if_index[t->input_sa_index] = sw_if_index;
+ sa_index_to_tun_if_index[t->output_sa_index] = sw_if_index;
+ }));
+
+ pool_foreach (sa, im->sad,
+ ({
+ if (mp->sa_id == ~(0) || ntohl (mp->sa_id) == sa->id)
+ send_ipsec_sa_details (sa, q, mp->context,
+ sa_index_to_tun_if_index[sa - im->sad]);
+ }));
+ /* *INDENT-ON* */
+
+ vec_free (sa_index_to_tun_if_index);
+#else
+ clib_warning ("unimplemented");
+#endif
+}
+
static void
vl_api_ikev2_profile_add_del_t_handler (vl_api_ikev2_profile_add_del_t * mp)