*---------------------------------------------------------------------------
*/
#include <stdbool.h>
-#include <vppinfra/error.h>
-#include <vnet/vnet.h>
-#include <vnet/ip/ip.h>
#include <vnet/fib/ip6_fib.h>
+#include <vnet/ip/ip.h>
+#include <vnet/vnet.h>
+#include <vppinfra/error.h>
-#include "sixrd_dpo.h"
-
-int sixrd_create_domain(ip6_address_t *ip6_prefix, u8 ip6_prefix_len,
- ip4_address_t *ip4_prefix, u8 ip4_prefix_len,
- ip4_address_t *ip4_src, u32 *sixrd_domain_index, u16 mtu);
-int sixrd_delete_domain(u32 sixrd_domain_index);
-u8 *format_sixrd_trace(u8 *s, va_list *args);
+#define SIXRD_DEFAULT_MTU 1480 /* 1500 - IPv4 header */
-typedef struct {
+typedef struct
+{
+ u32 fib_index;
+ u32 hw_if_index;
+ u32 sw_if_index;
+ u32 tunnel_index;
ip6_address_t ip6_prefix;
ip4_address_t ip4_prefix;
ip4_address_t ip4_src;
u8 shift;
u16 mtu;
-} sixrd_domain_t;
+ bool security_check;
+} sixrd_tunnel_t;
+
+typedef struct
+{
+ u16 msg_id_base;
-typedef struct {
/* pool of SIXRD domains */
- sixrd_domain_t *domains;
+ sixrd_tunnel_t *tunnels;
+ u32 *tunnel_index_by_sw_if_index;
+ uword *tunnel_by_ip;
- /* convenience */
- vlib_main_t *vlib_main;
- vnet_main_t *vnet_main;
} sixrd_main_t;
-#define foreach_sixrd_error \
- /* Must be first. */ \
- _(NONE, "valid SIXRD packets") \
- _(BAD_PROTOCOL, "bad protocol") \
- _(WRONG_ICMP_TYPE, "wrong icmp type") \
- _(SEC_CHECK, "security check failed") \
- _(ICMP, "unable to translate ICMP") \
- _(UNKNOWN, "unknown") \
- _(NO_DOMAIN, "no domain") \
- _(ENCAPSULATED, "encapsulated") \
- _(DECAPSULATED, "decapsulated") \
- _(TRANSLATED_4TO6, "translated 4 to 6") \
- _(TRANSLATED_6TO4, "translated 6 to 4") \
- _(FRAGMENT, "fragment handling error") \
- _(FRAGMENT_QUEUED, "dropped, missing first fragment") \
- _(FRAGMENTED, "packets requiring fragmentation") \
- _(FRAGMENT_PARTS, "fragment parts") \
- _(MALFORMED, "malformed packet")
-
-typedef enum {
-#define _(sym,str) SIXRD_ERROR_##sym,
- foreach_sixrd_error
-#undef _
- SIXRD_N_ERROR,
- } sixrd_error_t;
+#define foreach_sixrd_error \
+ /* Must be first. */ \
+ _(NONE, "valid SIXRD packets") \
+ _(BAD_PROTOCOL, "bad protocol") \
+ _(SEC_CHECK, "security check failed") \
+ _(NO_TUNNEL, "no tunnel")
-typedef struct {
- u32 sixrd_domain_index;
-} sixrd_trace_t;
+
+typedef enum
+{
+#define _(sym, str) SIXRD_ERROR_##sym,
+ foreach_sixrd_error
+#undef _
+ SIXRD_N_ERROR,
+} sixrd_error_t;
extern sixrd_main_t sixrd_main;
* sixrd_get_addr
*/
static_always_inline u32
-sixrd_get_addr (sixrd_domain_t *d, u64 dal)
+sixrd_get_addr_net (const sixrd_tunnel_t * t, u64 dal)
{
-
/* 1:1 mode */
- if (d->ip4_prefix_len == 32) return (d->ip4_prefix.as_u32);
-
- /* Grab 32 - ip4_prefix_len bits out of IPv6 address from offset ip6_prefix_len */
- return (d->ip4_prefix.as_u32 | (u32)(dal >> d->shift));
+ if (t->ip4_prefix_len == 32)
+ return (t->ip4_prefix.as_u32);
+
+ dal = clib_net_to_host_u64 (dal);
+
+ /* Grab 32 - ip4_prefix_len bits out of IPv6 address from offset
+ * ip6_prefix_len */
+ u32 mask = ~(~0ULL << (32 - t->ip4_prefix_len));
+ u32 ip4 =
+ clib_net_to_host_u32 (t->
+ ip4_prefix.as_u32) | ((u32) (dal >> t->
+ shift) & mask);
+ return clib_host_to_net_u32 (ip4);
}
-/*
- * Get the SIXRD domain from an IPv6 lookup adjacency.
- */
-static_always_inline sixrd_domain_t *
-ip6_sixrd_get_domain (u32 sdi, u32 *sixrd_domain_index)
+static_always_inline sixrd_tunnel_t *
+find_tunnel_by_ip4_address (ip4_address_t * ip)
{
- sixrd_main_t *mm = &sixrd_main;
- sixrd_dpo_t *sd;
-
- sd = sixrd_dpo_get(sdi);
-
- ASSERT(sd);
- *sixrd_domain_index = sd->sd_domain;
- return pool_elt_at_index(mm->domains, *sixrd_domain_index);
+ sixrd_main_t *sm = &sixrd_main;
+ uword *p;
+ p = hash_get (sm->tunnel_by_ip, ip->as_u32);
+ if (!p)
+ return NULL;
+ return pool_elt_at_index (sm->tunnels, p[0]);
}
-/*
- * Get the SIXRD domain from an IPv4 lookup adjacency.
- * If the IPv4 address is not shared, no lookup is required.
- * The IPv6 address is used otherwise.
- */
-static_always_inline sixrd_domain_t *
-ip4_sixrd_get_domain (u32 sdi, ip6_address_t *addr,
- u32 *sixrd_domain_index, u8 *error)
+static_always_inline sixrd_tunnel_t *
+ip4_sixrd_get_tunnel (u32 sdi, ip4_address_t * addr, u8 * error)
{
- sixrd_main_t *mm = &sixrd_main;
- sixrd_dpo_t *sd;
-
- sd = sixrd_dpo_get(sdi);
- *sixrd_domain_index = sd->sd_domain;
- if (*sixrd_domain_index != ~0)
- return pool_elt_at_index(mm->domains, *sixrd_domain_index);
-
- u32 lbi = ip6_fib_table_fwding_lookup(&ip6_main, 0, addr);
- const dpo_id_t *dpo = load_balance_get_bucket(lbi, 0);
- if (PREDICT_TRUE(dpo->dpoi_type == sixrd_dpo_type))
+ sixrd_tunnel_t *t = find_tunnel_by_ip4_address (addr);
+ if (!t)
{
- sd = sixrd_dpo_get(dpo->dpoi_index);
- *sixrd_domain_index = sd->sd_domain;
- return pool_elt_at_index(mm->domains, *sixrd_domain_index);
+ *error = SIXRD_ERROR_NO_TUNNEL;
+ return NULL;
}
- *error = SIXRD_ERROR_NO_DOMAIN;
- return NULL;
+ return t;
}
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
Code Review / vpp.git / blobdiff