26 #define foreach_ipsec_output_error \ 27 _(RX_PKTS, "IPSec pkts received") \ 28 _(POLICY_DISCARD, "IPSec policy discard") \ 29 _(POLICY_NO_MATCH, "IPSec policy (no match)") \ 30 _(POLICY_PROTECT, "IPSec policy protect") \ 31 _(POLICY_BYPASS, "IPSec policy bypass") \ 32 _(ENCAPS_FAILED, "IPSec encapsulation failed") 36 #define _(sym,str) IPSEC_OUTPUT_ERROR_##sym, 37 foreach_ipsec_output_error
40 } ipsec_output_error_t;
42 static char *ipsec_output_error_strings[] = {
43 #define _(sym,string) string, 44 foreach_ipsec_output_error
54 } ipsec_output_trace_t;
58 format_ipsec_output_trace (
u8 * s, va_list * args)
62 ipsec_output_trace_t *t = va_arg (*args, ipsec_output_trace_t *);
66 s =
format (s,
"spd %u ", t->spd_id);
91 if (ra < clib_net_to_host_u32 (p->
raddr.
start.ip4.as_u32))
94 if (ra > clib_net_to_host_u32 (p->
raddr.
stop.ip4.as_u32))
97 if (la < clib_net_to_host_u32 (p->
laddr.
start.ip4.as_u32))
100 if (la > clib_net_to_host_u32 (p->
laddr.
stop.ip4.as_u32))
104 ((pr != IP_PROTOCOL_TCP) && (pr != IP_PROTOCOL_UDP)
108 if (lp < p->lport.start)
114 if (rp < p->rport.start)
159 ((pr != IP_PROTOCOL_TCP) && (pr != IP_PROTOCOL_UDP)
163 if (lp < p->lport.start)
169 if (rp < p->rport.start)
187 u32 *from, *to_next = 0;
188 u32 n_left_from, sw_if_index0, last_sw_if_index = (
u32) ~ 0;
189 u32 next_node_index = (
u32) ~ 0, last_next_node_index = (
u32) ~ 0;
194 u64 nc_protect = 0, nc_bypass = 0, nc_discard = 0, nc_nomatch = 0;
199 while (n_left_from > 0)
213 iph_offset =
vnet_buffer (b0)->ip.save_rewrite_length;
224 last_sw_if_index = sw_if_index0;
235 (
"packet received from %U port %u to %U port %u spd_id %u",
242 p0 = ipsec_output_ip6_policy_match (spd0,
259 clib_net_to_host_u16 (udp0->
dst_port));
260 clib_warning (
"sw_if_index0 %u spd_index0 %u spd_id %u",
261 sw_if_index0, spd_index0, spd0->
id);
264 p0 = ipsec_output_policy_match (spd0, ip0->
protocol,
274 tcp0 = (
void *) udp0;
278 if (p0->
policy == IPSEC_POLICY_ACTION_PROTECT)
295 (b0->
flags & VNET_BUFFER_F_OFFLOAD_TCP_CKSUM))
300 b0->
flags &= ~VNET_BUFFER_F_OFFLOAD_TCP_CKSUM;
303 (b0->
flags & VNET_BUFFER_F_OFFLOAD_UDP_CKSUM))
308 b0->
flags &= ~VNET_BUFFER_F_OFFLOAD_UDP_CKSUM;
314 if (b0->
flags & VNET_BUFFER_F_OFFLOAD_IP_CKSUM)
317 b0->
flags &= ~VNET_BUFFER_F_OFFLOAD_IP_CKSUM;
320 (b0->
flags & VNET_BUFFER_F_OFFLOAD_TCP_CKSUM))
324 b0->
flags &= ~VNET_BUFFER_F_OFFLOAD_TCP_CKSUM;
327 (b0->
flags & VNET_BUFFER_F_OFFLOAD_UDP_CKSUM))
331 b0->
flags &= ~VNET_BUFFER_F_OFFLOAD_UDP_CKSUM;
336 else if (p0->
policy == IPSEC_POLICY_ACTION_BYPASS)
378 if (
PREDICT_FALSE ((last_next_node_index != next_node_index) || f == 0))
384 last_next_node_index = next_node_index;
396 ipsec_output_trace_t *tr =
399 tr->spd_id = spd0->
id;
405 IPSEC_OUTPUT_ERROR_POLICY_PROTECT, nc_protect);
407 IPSEC_OUTPUT_ERROR_POLICY_BYPASS, nc_bypass);
409 IPSEC_OUTPUT_ERROR_POLICY_DISCARD, nc_discard);
411 IPSEC_OUTPUT_ERROR_POLICY_NO_MATCH,
420 return ipsec_output_inline (vm, node, frame, 0);
425 .function = ipsec_output_ip4_node_fn,
426 .name =
"ipsec-output-ip4",
427 .vector_size =
sizeof (
u32),
428 .format_trace = format_ipsec_output_trace,
431 .n_errors =
ARRAY_LEN(ipsec_output_error_strings),
432 .error_strings = ipsec_output_error_strings,
436 #define _(s,n) [IPSEC_OUTPUT_NEXT_##s] = n, 448 return ipsec_output_inline (vm, node, frame, 1);
453 .function = ipsec_output_ip6_node_fn,
454 .name =
"ipsec-output-ip6",
455 .vector_size =
sizeof (
u32),
456 .format_trace = format_ipsec_output_trace,
459 .n_errors =
ARRAY_LEN(ipsec_output_error_strings),
460 .error_strings = ipsec_output_error_strings,
464 #define _(s,n) [IPSEC_OUTPUT_NEXT_##s] = n, 486 .vector_size =
sizeof (
u32),
488 .
name =
"ipsec-output-ip4",
492 .vector_size =
sizeof (
u32),
494 .
name =
"ipsec-output-ip6",
u32 ah_encrypt_node_index
u32 * ipv4_outbound_policies
struct _tcp_header tcp_header_t
uword * spd_index_by_sw_if_index
vlib_frame_t * vlib_get_frame_to_node(vlib_main_t *vm, u32 to_node_index)
ipsec_policy_t * policies
#define VLIB_NODE_FUNCTION_MULTIARCH(node, fn)
u32 error_drop_node_index
#define pool_elt_at_index(p, i)
Returns pointer to element at given index.
counter_t packets
packet counter
void vlib_put_frame_to_node(vlib_main_t *vm, u32 to_node_index, vlib_frame_t *f)
static void * vlib_buffer_get_current(vlib_buffer_t *b)
Get pointer to current data to process.
ip46_address_range_t laddr
u32 node_index
Node index.
static void vlib_node_increment_counter(vlib_main_t *vm, u32 node_index, u32 counter_index, u64 increment)
#define VLIB_REGISTER_NODE(x,...)
u32 esp_encrypt_node_index
#define clib_warning(format, args...)
#define foreach_ipsec_output_next
static_always_inline u32 get_next_output_feature_node_index(vlib_buffer_t *b, vlib_node_runtime_t *nr)
static void * ip6_next_header(ip6_header_t *i)
ip46_address_range_t raddr
u16 ip6_tcp_udp_icmp_compute_checksum(vlib_main_t *vm, vlib_buffer_t *p0, ip6_header_t *ip0, int *bogus_lengthp)
u16 ip4_tcp_udp_compute_checksum(vlib_main_t *vm, vlib_buffer_t *p0, ip4_header_t *ip0)
static void vlib_buffer_advance(vlib_buffer_t *b, word l)
Advance current data pointer by the supplied (signed!) amount.
ipsec_protocol_t protocol
static void * vlib_add_trace(vlib_main_t *vm, vlib_node_runtime_t *r, vlib_buffer_t *b, u32 n_data_bytes)
struct _vlib_node_registration vlib_node_registration_t
counter_t bytes
byte counter
static void * vlib_frame_vector_args(vlib_frame_t *f)
Get pointer to frame vector data.
static uword ipsec_output_node_fn(vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
u32 * ipv6_outbound_policies
#define vec_foreach(var, vec)
Vector iterator.
static int ip4_header_bytes(const ip4_header_t *i)
u32 flags
buffer flags: VLIB_BUFFER_FREE_LIST_INDEX_MASK: bits used to store free list index, VLIB_BUFFER_IS_TRACED: trace this buffer.
static vlib_buffer_t * vlib_get_buffer(vlib_main_t *vm, u32 buffer_index)
Translate buffer index into buffer pointer.
static u16 ip4_header_checksum(ip4_header_t *i)