#include <vnet/ip/ip.h>
#include <vnet/ip/ip_types_api.h>
#include <vnet/fib/fib.h>
+#include <vnet/ipip/ipip.h>
#include <vnet/vnet_msg_enum.h>
REPLY_MACRO (VL_API_IPSEC_TUNNEL_PROTECT_DEL_REPLY);
}
-typedef struct ipsec_tunnel_protect_walk_ctx_t_
+typedef struct ipsec_dump_walk_ctx_t_
{
vl_api_registration_t *reg;
u32 context;
-} ipsec_tunnel_protect_walk_ctx_t;
+} ipsec_dump_walk_ctx_t;
static walk_rc_t
send_ipsec_tunnel_protect_details (index_t itpi, void *arg)
{
- ipsec_tunnel_protect_walk_ctx_t *ctx = arg;
+ ipsec_dump_walk_ctx_t *ctx = arg;
vl_api_ipsec_tunnel_protect_details_t *mp;
ipsec_tun_protect_t *itp;
u32 sai, ii = 0;
if (!reg)
return;
- ipsec_tunnel_protect_walk_ctx_t ctx = {
+ ipsec_dump_walk_ctx_t ctx = {
.reg = reg,
.context = mp->context,
};
return (VNET_API_ERROR_UNIMPLEMENTED);
}
-
static int
ipsec_integ_algo_decode (vl_api_ipsec_integ_alg_t in, ipsec_integ_alg_t * out)
{
#endif
}
+static u32
+ipsec_tun_mk_input_sa_id (u32 ti)
+{
+ return (0x80000000 | ti);
+}
+
+static u32
+ipsec_tun_mk_output_sa_id (u32 ti)
+{
+ return (0xc0000000 | ti);
+}
+
static void
vl_api_ipsec_tunnel_if_add_del_t_handler (vl_api_ipsec_tunnel_if_add_del_t *
mp)
{
vl_api_ipsec_tunnel_if_add_del_reply_t *rmp;
- ipsec_main_t *im = &ipsec_main;
- vnet_main_t *vnm = im->vnet_main;
u32 sw_if_index = ~0;
- ip46_type_t itype;
int rv;
#if WITH_LIBSSL > 0
- ipsec_add_del_tunnel_args_t tun;
-
- clib_memset (&tun, 0, sizeof (ipsec_add_del_tunnel_args_t));
-
- tun.is_add = mp->is_add;
- tun.esn = mp->esn;
- tun.anti_replay = mp->anti_replay;
- tun.local_spi = ntohl (mp->local_spi);
- tun.remote_spi = ntohl (mp->remote_spi);
- tun.crypto_alg = mp->crypto_alg;
- tun.local_crypto_key_len = mp->local_crypto_key_len;
- tun.remote_crypto_key_len = mp->remote_crypto_key_len;
- tun.integ_alg = mp->integ_alg;
- tun.local_integ_key_len = mp->local_integ_key_len;
- tun.remote_integ_key_len = mp->remote_integ_key_len;
- tun.udp_encap = mp->udp_encap;
- tun.tx_table_id = ntohl (mp->tx_table_id);
- tun.salt = mp->salt;
- itype = ip_address_decode (&mp->local_ip, &tun.local_ip);
- itype = ip_address_decode (&mp->remote_ip, &tun.remote_ip);
- tun.is_ip6 = (IP46_TYPE_IP6 == itype);
- memcpy (&tun.local_crypto_key, &mp->local_crypto_key,
- mp->local_crypto_key_len);
- memcpy (&tun.remote_crypto_key, &mp->remote_crypto_key,
- mp->remote_crypto_key_len);
- memcpy (&tun.local_integ_key, &mp->local_integ_key,
- mp->local_integ_key_len);
- memcpy (&tun.remote_integ_key, &mp->remote_integ_key,
- mp->remote_integ_key_len);
- tun.renumber = mp->renumber;
- tun.show_instance = ntohl (mp->show_instance);
-
- rv = ipsec_add_del_tunnel_if_internal (vnm, &tun, &sw_if_index);
+ ip46_address_t local_ip = ip46_address_initializer;
+ ip46_address_t remote_ip = ip46_address_initializer;
+ ipsec_key_t crypto_key, integ_key;
+ ipsec_sa_flags_t flags;
+ ip46_type_t local_ip_type, remote_ip_type;
+ ipip_transport_t transport;
+ u32 fib_index;
+
+ local_ip_type = ip_address_decode (&mp->local_ip, &local_ip);
+ remote_ip_type = ip_address_decode (&mp->remote_ip, &remote_ip);
+ transport = (IP46_TYPE_IP6 == local_ip_type ?
+ IPIP_TRANSPORT_IP6 : IPIP_TRANSPORT_IP4);
+
+ if (local_ip_type != remote_ip_type)
+ {
+ rv = VNET_API_ERROR_INVALID_VALUE;
+ goto done;
+ }
+
+ flags = IPSEC_SA_FLAG_NONE;
+
+ if (mp->udp_encap)
+ flags |= IPSEC_SA_FLAG_UDP_ENCAP;
+ if (mp->esn)
+ flags |= IPSEC_SA_FLAG_USE_ESN;
+ if (mp->anti_replay)
+ flags |= IPSEC_SA_FLAG_USE_ANTI_REPLAY;
+
+ ipsec_mk_key (&crypto_key, mp->remote_crypto_key,
+ mp->remote_crypto_key_len);
+ ipsec_mk_key (&integ_key, mp->remote_integ_key, mp->remote_integ_key_len);
+ ipsec_mk_key (&crypto_key, mp->local_crypto_key, mp->local_crypto_key_len);
+ ipsec_mk_key (&integ_key, mp->local_integ_key, mp->local_integ_key_len);
+
+ fib_index =
+ fib_table_find (fib_proto_from_ip46 (local_ip_type),
+ ntohl (mp->tx_table_id));
+
+ if (~0 == fib_index)
+ {
+ rv = VNET_API_ERROR_NO_SUCH_FIB;
+ goto done;
+ }
+
+ if (mp->is_add)
+ {
+ // remote = input, local = output
+ /* create an ip-ip tunnel, then the two SA, then bind them */
+ rv = ipip_add_tunnel (transport,
+ ntohl (mp->show_instance),
+ &local_ip,
+ &remote_ip, fib_index, 0, &sw_if_index);
+
+ if (rv)
+ goto done;
+
+ rv = ipsec_sa_add_and_lock (ipsec_tun_mk_input_sa_id (sw_if_index),
+ ntohl (mp->remote_spi),
+ IPSEC_PROTOCOL_ESP,
+ mp->crypto_alg,
+ &crypto_key,
+ mp->integ_alg,
+ &integ_key,
+ (flags | IPSEC_SA_FLAG_IS_INBOUND),
+ ntohl (mp->tx_table_id),
+ mp->salt, &remote_ip, &local_ip, NULL);
+
+ if (rv)
+ goto done;
+
+ rv = ipsec_sa_add_and_lock (ipsec_tun_mk_output_sa_id (sw_if_index),
+ ntohl (mp->local_spi),
+ IPSEC_PROTOCOL_ESP,
+ mp->crypto_alg,
+ &crypto_key,
+ mp->integ_alg,
+ &integ_key,
+ flags,
+ ntohl (mp->tx_table_id),
+ mp->salt, &local_ip, &remote_ip, NULL);
+
+ if (rv)
+ goto done;
+
+ rv = ipsec_tun_protect_update_one (sw_if_index,
+ ipsec_tun_mk_output_sa_id
+ (sw_if_index),
+ ipsec_tun_mk_input_sa_id
+ (sw_if_index));
+ if (rv)
+ goto done;
+
+ /* the SAs are locked as a result of being used for proection,
+ * they cannot be removed from the API, since they cannot be refered
+ * to by the API. unlock them now, so that if the tunnel is rekeyed
+ * they-ll disapper
+ */
+ ipsec_sa_unlock_id (ipsec_tun_mk_input_sa_id (sw_if_index));
+ ipsec_sa_unlock_id (ipsec_tun_mk_output_sa_id (sw_if_index));
+ }
+ else
+ {
+
+ ipip_tunnel_key_t key = {
+ .transport = transport,
+ .fib_index = fib_index,
+ .src = local_ip,
+ .dst = remote_ip
+ };
+ ipip_tunnel_t *t = ipip_tunnel_db_find (&key);
+
+ rv = ipsec_tun_protect_del (t->sw_if_index);
+ ipip_del_tunnel (t->sw_if_index);
+ }
#else
rv = VNET_API_ERROR_UNIMPLEMENTED;
#endif
-
+done:
/* *INDENT-OFF* */
REPLY_MACRO2 (VL_API_IPSEC_TUNNEL_IF_ADD_DEL_REPLY,
({
/* *INDENT-ON* */
}
-static void
-send_ipsec_sa_details (ipsec_sa_t * sa, vl_api_registration_t * reg,
- u32 context, u32 sw_if_index)
+typedef struct ipsec_sa_dump_match_ctx_t_
{
+ index_t sai;
+ u32 sw_if_index;
+} ipsec_sa_dump_match_ctx_t;
+
+static walk_rc_t
+ipsec_sa_dump_match_sa (index_t itpi, void *arg)
+{
+ ipsec_sa_dump_match_ctx_t *ctx = arg;
+ ipsec_tun_protect_t *itp;
+ index_t sai;
+
+ itp = ipsec_tun_protect_get (itpi);
+
+ if (itp->itp_out_sa == ctx->sai)
+ {
+ ctx->sw_if_index = itp->itp_sw_if_index;
+ return (WALK_STOP);
+ }
+ /* *INDENT-OFF* */
+ FOR_EACH_IPSEC_PROTECT_INPUT_SAI (itp, sai,
+ ({
+ if (sai == ctx->sai)
+ {
+ ctx->sw_if_index = itp->itp_sw_if_index;
+ return (WALK_STOP);
+ }
+ }));
+ /* *INDENT-OFF* */
+
+ return (WALK_CONTINUE);
+}
+
+static walk_rc_t
+send_ipsec_sa_details (ipsec_sa_t * sa, void *arg)
+{
+ ipsec_dump_walk_ctx_t *ctx = arg;
vl_api_ipsec_sa_details_t *mp;
+ ipsec_main_t *im = &ipsec_main;
mp = vl_msg_api_alloc (sizeof (*mp));
clib_memset (mp, 0, sizeof (*mp));
mp->_vl_msg_id = ntohs (VL_API_IPSEC_SA_DETAILS);
- mp->context = context;
+ mp->context = ctx->context;
mp->entry.sad_id = htonl (sa->id);
mp->entry.spi = htonl (sa->spi);
ipsec_key_encode (&sa->integ_key, &mp->entry.integrity_key);
mp->entry.flags = ipsec_sad_flags_encode (sa);
+ mp->entry.salt = clib_host_to_net_u32 (sa->salt);
+
+ if (ipsec_sa_is_set_IS_PROTECT (sa))
+ {
+ ipsec_sa_dump_match_ctx_t ctx = {
+ .sai = sa - im->sad,
+ .sw_if_index = ~0,
+ };
+ ipsec_tun_protect_walk (ipsec_sa_dump_match_sa, &ctx);
+
+ mp->sw_if_index = htonl (ctx.sw_if_index);
+ }
+ else
+ mp->sw_if_index = ~0;
if (ipsec_sa_is_set_IS_TUNNEL (sa))
{
&mp->entry.tunnel_dst);
}
- mp->sw_if_index = htonl (sw_if_index);
- 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 (ipsec_sa_is_set_USE_ESN (sa))
if (ipsec_sa_is_set_USE_ANTI_REPLAY (sa))
mp->replay_window = clib_host_to_net_u64 (sa->replay_window);
- vl_api_send_msg (reg, (u8 *) mp);
-}
+ vl_api_send_msg (ctx->reg, (u8 *) mp);
+ return (WALK_CONTINUE);
+}
static void
vl_api_ipsec_sa_dump_t_handler (vl_api_ipsec_sa_dump_t * mp)
{
vl_api_registration_t *reg;
- 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
reg = vl_api_client_index_to_registration (mp->client_index);
- if (!reg || pool_elts (im->sad) == 0)
+ if (!reg)
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;
- }));
+ ipsec_dump_walk_ctx_t ctx = {
+ .reg = reg,
+ .context = mp->context,
+ };
- pool_foreach (sa, im->sad,
- ({
- if (mp->sa_id == ~(0) || ntohl (mp->sa_id) == sa->id)
- send_ipsec_sa_details (sa, reg, mp->context,
- sa_index_to_tun_if_index[sa - im->sad]);
- }));
- /* *INDENT-ON* */
+ ipsec_sa_walk (send_ipsec_sa_details, &ctx);
- vec_free (sa_index_to_tun_if_index);
#else
clib_warning ("unimplemented");
#endif
vl_api_ipsec_tunnel_if_set_sa_t_handler (vl_api_ipsec_tunnel_if_set_sa_t * mp)
{
vl_api_ipsec_tunnel_if_set_sa_reply_t *rmp;
- ipsec_main_t *im = &ipsec_main;
- vnet_main_t *vnm = im->vnet_main;
- vnet_sw_interface_t *sw;
int rv;
#if WITH_LIBSSL > 0
- sw = vnet_get_sw_interface (vnm, ntohl (mp->sw_if_index));
+ VALIDATE_SW_IF_INDEX(mp);
+
+ if (mp->is_outbound)
+ rv = ipsec_tun_protect_update_out (ntohl (mp->sw_if_index),
+ ntohl (mp->sa_id));
+ else
+ rv = ipsec_tun_protect_update_in (ntohl (mp->sw_if_index),
+ ntohl (mp->sa_id));
- rv = ipsec_set_interface_sa (vnm, sw->hw_if_index, ntohl (mp->sa_id),
- mp->is_outbound);
#else
clib_warning ("unimplemented");
#endif
+ BAD_SW_IF_INDEX_LABEL;
+
REPLY_MACRO (VL_API_IPSEC_TUNNEL_IF_SET_SA_REPLY);
}
Code Review / vpp.git / blobdiff