_(LOOKUP_FAIL_TO_L3, "L2TP L2 session lookup failed pkts") \
_(ADMIN_DOWN, "L2TP tunnel is down")
-static char * l2t_encap_error_strings[] = {
+static char *l2t_encap_error_strings[] = {
#define _(sym,string) string,
foreach_l2t_encap_error
#undef _
};
-typedef enum {
+typedef enum
+{
#define _(sym,str) L2T_ENCAP_ERROR_##sym,
- foreach_l2t_encap_error
+ foreach_l2t_encap_error
#undef _
L2T_ENCAP_N_ERROR,
} l2t_encap_error_t;
-typedef enum {
- L2T_ENCAP_NEXT_DROP,
- L2T_ENCAP_NEXT_IP6_LOOKUP,
- L2T_ENCAP_N_NEXT,
+typedef enum
+{
+ L2T_ENCAP_NEXT_DROP,
+ L2T_ENCAP_NEXT_IP6_LOOKUP,
+ L2T_ENCAP_N_NEXT,
} l2t_encap_next_t;
-typedef struct {
+typedef struct
+{
u32 cached_session_index;
u32 cached_sw_if_index;
- vnet_main_t * vnet_main;
+ vnet_main_t *vnet_main;
} l2tp_encap_runtime_t;
vlib_node_registration_t l2t_encap_node;
#define NSTAGES 3
-static inline void stage0 (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- u32 buffer_index)
+static inline void
+stage0 (vlib_main_t * vm, vlib_node_runtime_t * node, u32 buffer_index)
{
- vlib_buffer_t *b = vlib_get_buffer (vm, buffer_index);
- vlib_prefetch_buffer_header (b, STORE);
- CLIB_PREFETCH (b->data, 2*CLIB_CACHE_LINE_BYTES, STORE);
+ vlib_buffer_t *b = vlib_get_buffer (vm, buffer_index);
+ vlib_prefetch_buffer_header (b, STORE);
+ CLIB_PREFETCH (b->data, 2 * CLIB_CACHE_LINE_BYTES, STORE);
}
-static inline void stage1 (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- u32 bi)
+static inline void
+stage1 (vlib_main_t * vm, vlib_node_runtime_t * node, u32 bi)
{
- l2tp_encap_runtime_t * rt = (void *) node->runtime_data;
- vlib_buffer_t *b = vlib_get_buffer (vm, bi);
- vnet_hw_interface_t * hi;
+ l2tp_encap_runtime_t *rt = (void *) node->runtime_data;
+ vlib_buffer_t *b = vlib_get_buffer (vm, bi);
+ vnet_hw_interface_t *hi;
- u32 sw_if_index = vnet_buffer(b)->sw_if_index[VLIB_TX];
- u32 session_index = rt->cached_session_index;
+ u32 sw_if_index = vnet_buffer (b)->sw_if_index[VLIB_TX];
+ u32 session_index = rt->cached_session_index;
- if (PREDICT_FALSE(rt->cached_sw_if_index != sw_if_index))
+ if (PREDICT_FALSE (rt->cached_sw_if_index != sw_if_index))
{
- hi = vnet_get_sup_hw_interface (rt->vnet_main, sw_if_index);
- session_index = rt->cached_session_index = hi->dev_instance;
- rt->cached_sw_if_index = sw_if_index;
+ hi = vnet_get_sup_hw_interface (rt->vnet_main, sw_if_index);
+ session_index = rt->cached_session_index = hi->dev_instance;
+ rt->cached_sw_if_index = sw_if_index;
}
- /* Remember mapping index, prefetch the mini counter */
- vnet_buffer(b)->l2t.next_index = L2T_ENCAP_NEXT_IP6_LOOKUP;
- vnet_buffer(b)->l2t.session_index = session_index;
+ /* Remember mapping index, prefetch the mini counter */
+ vnet_buffer (b)->l2t.next_index = L2T_ENCAP_NEXT_IP6_LOOKUP;
+ vnet_buffer (b)->l2t.session_index = session_index;
- /* $$$$ prefetch counter... */
+ /* $$$$ prefetch counter... */
}
-static inline u32 last_stage (vlib_main_t *vm, vlib_node_runtime_t *node,
- u32 bi)
+static inline u32
+last_stage (vlib_main_t * vm, vlib_node_runtime_t * node, u32 bi)
{
- vlib_buffer_t *b = vlib_get_buffer (vm, bi);
- l2t_main_t *lm = &l2t_main;
- vlib_node_t *n = vlib_get_node (vm, l2t_encap_node.index);
- u32 node_counter_base_index = n->error_heap_index;
- vlib_error_main_t * em = &vm->error_main;
- l2tpv3_header_t * l2tp;
- u32 session_index;
- u32 counter_index;
- l2t_session_t *s;
- ip6_header_t *ip6;
- u16 payload_length;
- u32 next_index = L2T_ENCAP_NEXT_IP6_LOOKUP;
-
- /* Other-than-output pkt? We're done... */
- if (vnet_buffer(b)->l2t.next_index != L2T_ENCAP_NEXT_IP6_LOOKUP)
- return vnet_buffer(b)->l2t.next_index;
-
- em->counters[node_counter_base_index + L2T_ENCAP_ERROR_NETWORK_TO_USER] += 1;
-
- session_index = vnet_buffer(b)->l2t.session_index;
-
- counter_index =
- session_index_to_counter_index (session_index,
- SESSION_COUNTER_NETWORK_TO_USER);
-
- /* per-mapping byte stats include the ethernet header */
- vlib_increment_combined_counter (&lm->counter_main,
- os_get_cpu_number(),
- counter_index,
- 1 /* packet_increment */,
- vlib_buffer_length_in_chain (vm, b));
-
- s = pool_elt_at_index (lm->sessions, session_index);
-
- vnet_buffer(b)->sw_if_index[VLIB_TX] = s->encap_fib_index;
-
- /* Paint on an l2tpv3 hdr */
- vlib_buffer_advance (b, -(s->l2tp_hdr_size));
- l2tp = vlib_buffer_get_current (b);
-
- l2tp->session_id = s->remote_session_id;
- l2tp->cookie = s->remote_cookie;
- if (PREDICT_FALSE (s->l2_sublayer_present)) {
- l2tp->l2_specific_sublayer = 0;
+ vlib_buffer_t *b = vlib_get_buffer (vm, bi);
+ l2t_main_t *lm = &l2t_main;
+ vlib_node_t *n = vlib_get_node (vm, l2t_encap_node.index);
+ u32 node_counter_base_index = n->error_heap_index;
+ vlib_error_main_t *em = &vm->error_main;
+ l2tpv3_header_t *l2tp;
+ u32 session_index;
+ u32 counter_index;
+ l2t_session_t *s;
+ ip6_header_t *ip6;
+ u16 payload_length;
+ u32 next_index = L2T_ENCAP_NEXT_IP6_LOOKUP;
+
+ /* Other-than-output pkt? We're done... */
+ if (vnet_buffer (b)->l2t.next_index != L2T_ENCAP_NEXT_IP6_LOOKUP)
+ return vnet_buffer (b)->l2t.next_index;
+
+ em->counters[node_counter_base_index + L2T_ENCAP_ERROR_NETWORK_TO_USER] +=
+ 1;
+
+ session_index = vnet_buffer (b)->l2t.session_index;
+
+ counter_index =
+ session_index_to_counter_index (session_index,
+ SESSION_COUNTER_NETWORK_TO_USER);
+
+ /* per-mapping byte stats include the ethernet header */
+ vlib_increment_combined_counter (&lm->counter_main,
+ os_get_cpu_number (),
+ counter_index, 1 /* packet_increment */ ,
+ vlib_buffer_length_in_chain (vm, b));
+
+ s = pool_elt_at_index (lm->sessions, session_index);
+
+ vnet_buffer (b)->sw_if_index[VLIB_TX] = s->encap_fib_index;
+
+ /* Paint on an l2tpv3 hdr */
+ vlib_buffer_advance (b, -(s->l2tp_hdr_size));
+ l2tp = vlib_buffer_get_current (b);
+
+ l2tp->session_id = s->remote_session_id;
+ l2tp->cookie = s->remote_cookie;
+ if (PREDICT_FALSE (s->l2_sublayer_present))
+ {
+ l2tp->l2_specific_sublayer = 0;
}
- /* Paint on an ip6 header */
- vlib_buffer_advance (b, -(sizeof (*ip6)));
- ip6 = vlib_buffer_get_current (b);
+ /* Paint on an ip6 header */
+ vlib_buffer_advance (b, -(sizeof (*ip6)));
+ ip6 = vlib_buffer_get_current (b);
- if (PREDICT_FALSE(!(s->admin_up))) {
- b->error = node->errors[L2T_ENCAP_ERROR_ADMIN_DOWN];
- next_index = L2T_ENCAP_NEXT_DROP;
- goto done;
+ if (PREDICT_FALSE (!(s->admin_up)))
+ {
+ b->error = node->errors[L2T_ENCAP_ERROR_ADMIN_DOWN];
+ next_index = L2T_ENCAP_NEXT_DROP;
+ goto done;
}
- ip6->ip_version_traffic_class_and_flow_label =
- clib_host_to_net_u32 (0x6<<28);
-
- /* calculate ip6 payload length */
- payload_length = vlib_buffer_length_in_chain (vm, b);
- payload_length -= sizeof (*ip6);
-
- ip6->payload_length = clib_host_to_net_u16 (payload_length);
- ip6->protocol = IP_PROTOCOL_L2TP;
- ip6->hop_limit = 0xff;
- ip6->src_address.as_u64[0] = s->our_address.as_u64[0];
- ip6->src_address.as_u64[1] = s->our_address.as_u64[1];
- ip6->dst_address.as_u64[0] = s->client_address.as_u64[0];
- ip6->dst_address.as_u64[1] = s->client_address.as_u64[1];
-
-
- done:
- if (PREDICT_FALSE(b->flags & VLIB_BUFFER_IS_TRACED)) {
- l2t_trace_t *t = vlib_add_trace (vm, node, b, sizeof (*t));
- t->is_user_to_network = 0;
- t->our_address.as_u64[0] =
- ip6->src_address.as_u64[0];
- t->our_address.as_u64[1] =
- ip6->src_address.as_u64[1];
- t->client_address.as_u64[0] =
- ip6->dst_address.as_u64[0];
- t->client_address.as_u64[1] =
- ip6->dst_address.as_u64[1];
- t->session_index = session_index;
+ ip6->ip_version_traffic_class_and_flow_label =
+ clib_host_to_net_u32 (0x6 << 28);
+
+ /* calculate ip6 payload length */
+ payload_length = vlib_buffer_length_in_chain (vm, b);
+ payload_length -= sizeof (*ip6);
+
+ ip6->payload_length = clib_host_to_net_u16 (payload_length);
+ ip6->protocol = IP_PROTOCOL_L2TP;
+ ip6->hop_limit = 0xff;
+ ip6->src_address.as_u64[0] = s->our_address.as_u64[0];
+ ip6->src_address.as_u64[1] = s->our_address.as_u64[1];
+ ip6->dst_address.as_u64[0] = s->client_address.as_u64[0];
+ ip6->dst_address.as_u64[1] = s->client_address.as_u64[1];
+
+
+done:
+ if (PREDICT_FALSE (b->flags & VLIB_BUFFER_IS_TRACED))
+ {
+ l2t_trace_t *t = vlib_add_trace (vm, node, b, sizeof (*t));
+ t->is_user_to_network = 0;
+ t->our_address.as_u64[0] = ip6->src_address.as_u64[0];
+ t->our_address.as_u64[1] = ip6->src_address.as_u64[1];
+ t->client_address.as_u64[0] = ip6->dst_address.as_u64[0];
+ t->client_address.as_u64[1] = ip6->dst_address.as_u64[1];
+ t->session_index = session_index;
}
- return next_index;
+ return next_index;
}
#include <vnet/pipeline.h>
-uword l2t_encap_node_fn (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame)
+uword
+l2t_encap_node_fn (vlib_main_t * vm,
+ vlib_node_runtime_t * node, vlib_frame_t * frame)
{
- return dispatch_pipeline (vm, node, frame);
+ return dispatch_pipeline (vm, node, frame);
}
+/* *INDENT-OFF* */
VLIB_REGISTER_NODE (l2t_encap_node) = {
.function = l2t_encap_node_fn,
.name = "l2tp-encap",
.format_trace = format_l2t_trace,
.type = VLIB_NODE_TYPE_INTERNAL,
.runtime_data_bytes = sizeof (l2tp_encap_runtime_t),
-
+
.n_errors = ARRAY_LEN(l2t_encap_error_strings),
.error_strings = l2t_encap_error_strings,
.n_next_nodes = L2T_ENCAP_N_NEXT,
- // add dispositions here
+ /* add dispositions here */
.next_nodes = {
- [L2T_ENCAP_NEXT_IP6_LOOKUP] = "ip6-lookup",
- [L2T_ENCAP_NEXT_DROP] = "error-drop",
+ [L2T_ENCAP_NEXT_IP6_LOOKUP] = "ip6-lookup",
+ [L2T_ENCAP_NEXT_DROP] = "error-drop",
},
};
+/* *INDENT-ON* */
-VLIB_NODE_FUNCTION_MULTIARCH (l2t_encap_node, l2t_encap_node_fn)
-
-void l2tp_encap_init (vlib_main_t * vm)
+VLIB_NODE_FUNCTION_MULTIARCH (l2t_encap_node, l2t_encap_node_fn);
+void
+l2tp_encap_init (vlib_main_t * vm)
{
- l2tp_encap_runtime_t * rt;
+ l2tp_encap_runtime_t *rt;
rt = vlib_node_get_runtime_data (vm, l2t_encap_node.index);
- rt->vnet_main = vnet_get_main();
- rt->cached_sw_if_index = (u32) ~0;
- rt->cached_session_index = (u32) ~0;
+ rt->vnet_main = vnet_get_main ();
+ rt->cached_sw_if_index = (u32) ~ 0;
+ rt->cached_session_index = (u32) ~ 0;
}
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
Code Review / vpp.git / blobdiff