FD.io VPP  v21.06-3-gbb25fbf28
Vector Packet Processing
sixrd.h
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3  * Licensed under the Apache License, Version 2.0 (the "License");
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15  */
16 #include <stdbool.h>
17 #include <vnet/fib/ip6_fib.h>
18 #include <vnet/ip/ip.h>
19 #include <vnet/ipip/ipip.h>
20 #include <vnet/vnet.h>
21 #include <vppinfra/error.h>
22 
23 #define SIXRD_DEFAULT_MTU 1480 /* 1500 - IPv4 header */
24 
25 #define foreach_sixrd_error \
26  /* Must be first. */ \
27  _(NONE, "valid SIXRD packets") \
28  _(BAD_PROTOCOL, "bad protocol") \
29  _(SEC_CHECK, "security check failed") \
30  _(NO_TUNNEL, "no tunnel")
31 
32 
33 typedef enum
34 {
35 #define _(sym, str) SIXRD_ERROR_##sym,
37 #undef _
40 
41 extern sixrd_main_t sixrd_main;
42 
43 static_always_inline sixrd_tunnel_t *
45 {
46  sixrd_main_t *sm = &sixrd_main;
47  uword *p;
48  p = hash_get (sm->tunnel_by_ip, ip->as_u32);
49  if (!p)
50  return NULL;
51  return pool_elt_at_index (sm->tunnels, p[0]);
52 }
53 
54 static_always_inline sixrd_tunnel_t *
56 {
57  sixrd_tunnel_t *t = find_tunnel_by_ip4_address (addr);
58  if (!t)
59  {
60  *error = SIXRD_ERROR_NO_TUNNEL;
61  return NULL;
62  }
63  return t;
64 }
65 
66 /*
67  * fd.io coding-style-patch-verification: ON
68  *
69  * Local Variables:
70  * eval: (c-set-style "gnu")
71  * End:
72  */
ip4_sixrd_get_tunnel
static_always_inline sixrd_tunnel_t * ip4_sixrd_get_tunnel(u32 sdi, ip4_address_t *addr, u8 *error)
Definition: sixrd.h:55
pool_elt_at_index
#define pool_elt_at_index(p, i)
Returns pointer to element at given index.
Definition: pool.h:553
SIXRD_N_ERROR
@ SIXRD_N_ERROR
Definition: sixrd.h:38
addr
vhost_vring_addr_t addr
Definition: vhost_user.h:130
error
Definition: cJSON.c:88
error.h
static_always_inline
#define static_always_inline
Definition: clib.h:112
uword
u64 uword
Definition: types.h:112
hash_get
#define hash_get(h, key)
Definition: hash.h:249
foreach_sixrd_error
#define foreach_sixrd_error
Definition: sixrd.h:25
ip4_address_t
Definition: ip4_packet.h:50
ip.h
u32
unsigned int u32
Definition: types.h:88
ip6_fib.h
find_tunnel_by_ip4_address
static_always_inline sixrd_tunnel_t * find_tunnel_by_ip4_address(ip4_address_t *ip)
Definition: sixrd.h:44
u8
unsigned char u8
Definition: types.h:56
ip
vl_api_address_t ip
Definition: l2.api:558
ipip.h
vnet.h
sixrd_error_t
sixrd_error_t
Definition: sixrd.h:33
sixrd_main
sixrd_main_t sixrd_main