/* Statistics (not really errors) */
#define foreach_l2t_l2_error \
-_(NETWORK_TO_USER, "L2 network to user (ip6) pkts")
+_(NETWORK_TO_USER, "L2 network to user (ip6) pkts")
-static char * l2t_l2_error_strings[] = {
+static char *l2t_l2_error_strings[] = {
#define _(sym,string) string,
foreach_l2t_l2_error
#undef _
};
-typedef enum {
+typedef enum
+{
#define _(sym,str) L2T_L2_ERROR_##sym,
- foreach_l2t_l2_error
+ foreach_l2t_l2_error
#undef _
L2T_L2_N_ERROR,
} l2t_l2_error_t;
/*
* Packets go to ethernet-input when they don't match a mapping
*/
-typedef enum {
- L2T_L2_NEXT_DROP,
- L2T_L2_NEXT_ETHERNET_INPUT,
- L2T_L2_NEXT_IP6_LOOKUP,
- L2T_L2_N_NEXT,
+typedef enum
+{
+ L2T_L2_NEXT_DROP,
+ L2T_L2_NEXT_ETHERNET_INPUT,
+ L2T_L2_NEXT_IP6_LOOKUP,
+ L2T_L2_N_NEXT,
} l2t_l2_next_t;
vlib_node_registration_t l2t_l2_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)
{
- vlib_buffer_t *b = vlib_get_buffer (vm, bi);
- l2t_main_t *lm = &l2t_main;
- ethernet_header_t * eh;
- ethernet_vlan_header_t *vh;
- u32 session_index;
- uword *p;
- uword vlan_and_sw_if_index_key;
-
- /* just in case, needed to test with the tun/tap device */
- vlib_buffer_reset(b);
-
- eh = vlib_buffer_get_current (b);
-
- /* Not a VLAN pkt? send to ethernet-input... */
- if (PREDICT_FALSE(eh->type != clib_host_to_net_u16 (0x8100))) {
- vnet_buffer(b)->l2t.next_index = L2T_L2_NEXT_ETHERNET_INPUT;
- return;
+ vlib_buffer_t *b = vlib_get_buffer (vm, bi);
+ l2t_main_t *lm = &l2t_main;
+ ethernet_header_t *eh;
+ ethernet_vlan_header_t *vh;
+ u32 session_index;
+ uword *p;
+ uword vlan_and_sw_if_index_key;
+
+ /* just in case, needed to test with the tun/tap device */
+ vlib_buffer_reset (b);
+
+ eh = vlib_buffer_get_current (b);
+
+ /* Not a VLAN pkt? send to ethernet-input... */
+ if (PREDICT_FALSE (eh->type != clib_host_to_net_u16 (0x8100)))
+ {
+ vnet_buffer (b)->l2t.next_index = L2T_L2_NEXT_ETHERNET_INPUT;
+ return;
}
- vh = (ethernet_vlan_header_t *)(eh+1);
+ vh = (ethernet_vlan_header_t *) (eh + 1);
- /* look up session */
- vlan_and_sw_if_index_key = ((uword)(vh->priority_cfi_and_id)<<32)
- | vnet_buffer(b)->sw_if_index[VLIB_RX];
+ /* look up session */
+ vlan_and_sw_if_index_key = ((uword) (vh->priority_cfi_and_id) << 32)
+ | vnet_buffer (b)->sw_if_index[VLIB_RX];
- p = hash_get (lm->session_by_vlan_and_rx_sw_if_index,
- vlan_and_sw_if_index_key);
+ p = hash_get (lm->session_by_vlan_and_rx_sw_if_index,
+ vlan_and_sw_if_index_key);
- if (PREDICT_FALSE(p == 0)) {
- /* $$$ drop here if not for our MAC? */
- vnet_buffer(b)->l2t.next_index = L2T_L2_NEXT_ETHERNET_INPUT;
- return;
- } else {
- session_index = p[0];
+ if (PREDICT_FALSE (p == 0))
+ {
+ /* $$$ drop here if not for our MAC? */
+ vnet_buffer (b)->l2t.next_index = L2T_L2_NEXT_ETHERNET_INPUT;
+ return;
+ }
+ else
+ {
+ session_index = p[0];
}
- /* Remember mapping index, prefetch the mini counter */
- vnet_buffer(b)->l2t.next_index = L2T_L2_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_L2_NEXT_IP6_LOOKUP;
+ vnet_buffer (b)->l2t.session_index = session_index;
- /* Each mapping has 2 x (pkt, byte) counters, hence the shift */
- CLIB_PREFETCH(lm->counter_main.mini + (p[0]<<1), CLIB_CACHE_LINE_BYTES,
- STORE);
+ /* Each mapping has 2 x (pkt, byte) counters, hence the shift */
+ CLIB_PREFETCH (lm->counter_main.mini + (p[0] << 1), CLIB_CACHE_LINE_BYTES,
+ STORE);
}
-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;
- ethernet_header_t * eh = vlib_buffer_get_current (b);
- vlib_node_t *n = vlib_get_node (vm, l2t_l2_node.index);
- u32 node_counter_base_index = n->error_heap_index;
- vlib_error_main_t * em = &vm->error_main;
- l2tpv3_header_t * l2t; /* l2 header */
- ethernet_vlan_header_t * vh; /* 802.1q vlan header */
- u32 counter_index;
- l2t_session_t *s;
- ip6_header_t *ip6;
- u16 payload_ethertype;
- u8 dst_mac_address[6];
- u8 src_mac_address[6];
- u16 payload_length;
- i32 backup;
-
- /* Other-than-output pkt? We're done... */
- if (vnet_buffer(b)->l2t.next_index != L2T_L2_NEXT_IP6_LOOKUP)
- return vnet_buffer(b)->l2t.next_index;
-
- vh = (ethernet_vlan_header_t *)(eh+1);
-
- em->counters[node_counter_base_index + L2T_L2_ERROR_NETWORK_TO_USER] += 1;
-
- counter_index =
- session_index_to_counter_index (vnet_buffer(b)->l2t.session_index,
- SESSION_COUNTER_NETWORK_TO_USER);
-
- /* per-mapping byte stats include the ethernet header */
- vlib_increment_combined_counter (&lm->counter_main, counter_index,
- 1 /* packet_increment */,
- vlib_buffer_length_in_chain (vm, b) +
- sizeof (ethernet_header_t));
-
- s = pool_elt_at_index (lm->sessions, vnet_buffer(b)->l2t.session_index);
-
- /* Save src/dst MAC addresses */
+ vlib_buffer_t *b = vlib_get_buffer (vm, bi);
+ l2t_main_t *lm = &l2t_main;
+ ethernet_header_t *eh = vlib_buffer_get_current (b);
+ vlib_node_t *n = vlib_get_node (vm, l2t_l2_node.index);
+ u32 node_counter_base_index = n->error_heap_index;
+ vlib_error_main_t *em = &vm->error_main;
+ l2tpv3_header_t *l2t; /* l2 header */
+ ethernet_vlan_header_t *vh; /* 802.1q vlan header */
+ u32 counter_index;
+ l2t_session_t *s;
+ ip6_header_t *ip6;
+ u16 payload_ethertype;
+ u8 dst_mac_address[6];
+ u8 src_mac_address[6];
+ u16 payload_length;
+ i32 backup;
+
+ /* Other-than-output pkt? We're done... */
+ if (vnet_buffer (b)->l2t.next_index != L2T_L2_NEXT_IP6_LOOKUP)
+ return vnet_buffer (b)->l2t.next_index;
+
+ vh = (ethernet_vlan_header_t *) (eh + 1);
+
+ em->counters[node_counter_base_index + L2T_L2_ERROR_NETWORK_TO_USER] += 1;
+
+ counter_index =
+ session_index_to_counter_index (vnet_buffer (b)->l2t.session_index,
+ SESSION_COUNTER_NETWORK_TO_USER);
+
+ /* per-mapping byte stats include the ethernet header */
+ vlib_increment_combined_counter (&lm->counter_main, counter_index,
+ 1 /* packet_increment */ ,
+ vlib_buffer_length_in_chain (vm, b) +
+ sizeof (ethernet_header_t));
+
+ s = pool_elt_at_index (lm->sessions, vnet_buffer (b)->l2t.session_index);
+
+ /* Save src/dst MAC addresses */
#define _(i) dst_mac_address[i] = eh->dst_address[i];
- _(0) _(1) _(2) _(3) _(4) _(5);
+ _(0) _(1) _(2) _(3) _(4) _(5);
#undef _
#define _(i) src_mac_address[i] = eh->src_address[i];
- _(0) _(1) _(2) _(3) _(4) _(5);
+ _(0) _(1) _(2) _(3) _(4) _(5);
#undef _
-
- payload_ethertype = vh->type;
- /* Splice out the 802.1q vlan tag */
- vlib_buffer_advance (b, 4);
- eh = vlib_buffer_get_current (b);
+ payload_ethertype = vh->type;
+
+ /* Splice out the 802.1q vlan tag */
+ vlib_buffer_advance (b, 4);
+ eh = vlib_buffer_get_current (b);
- /* restore src/dst MAC addresses */
+ /* restore src/dst MAC addresses */
#define _(i) eh->dst_address[i] = dst_mac_address[i];
- _(0) _(1) _(2) _(3) _(4) _(5);
+ _(0) _(1) _(2) _(3) _(4) _(5);
#undef _
#define _(i) eh->src_address[i] = src_mac_address[i];
- _(0) _(1) _(2) _(3) _(4) _(5);
+ _(0) _(1) _(2) _(3) _(4) _(5);
#undef _
- eh->type = payload_ethertype;
-
- /* Paint on an l2tpv3 hdr */
- backup = sizeof(*l2t);
+ eh->type = payload_ethertype;
+
+ /* Paint on an l2tpv3 hdr */
+ backup = sizeof (*l2t);
#if 0
- /* back up 4 bytes less if no l2 sublayer */
- backup -= s->l2_sublayer_present ? 0 : 4;
+ /* back up 4 bytes less if no l2 sublayer */
+ backup -= s->l2_sublayer_present ? 0 : 4;
#endif
-
- vlib_buffer_advance (b, -backup);
- l2t = vlib_buffer_get_current (b);
- l2t->session_id = s->remote_session_id;
- l2t->cookie = s->remote_cookie;
+ vlib_buffer_advance (b, -backup);
+ l2t = vlib_buffer_get_current (b);
+
+ l2t->session_id = s->remote_session_id;
+ l2t->cookie = s->remote_cookie;
#if 0
- if (s->l2_sublayer_present)
- l2t->l2_specific_sublayer = 0;
+ if (s->l2_sublayer_present)
+ l2t->l2_specific_sublayer = 0;
#endif
- /* 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);
- ip6->ip_version_traffic_class_and_flow_label =
- clib_host_to_net_u32 (0x6<<28);
+ 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);
+ /* 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 = 0x73; /* l2tpv3 */
- 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];
+ ip6->payload_length = clib_host_to_net_u16 (payload_length);
+ ip6->protocol = 0x73; /* l2tpv3 */
+ 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];
- return L2T_L2_NEXT_IP6_LOOKUP;
+ return L2T_L2_NEXT_IP6_LOOKUP;
}
#include <vnet/pipeline.h>
-static uword l2t_l2_node_fn (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame)
+static uword
+l2t_l2_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_l2_node) = {
.function = l2t_l2_node_fn,
.name = "l2t-l2-input",
.vector_size = sizeof (u32),
.format_trace = format_l2t_trace,
.type = VLIB_NODE_TYPE_INTERNAL,
-
+
.n_errors = ARRAY_LEN(l2t_l2_error_strings),
.error_strings = l2t_l2_error_strings,
/* edit / add dispositions here */
.next_nodes = {
- [L2T_L2_NEXT_IP6_LOOKUP] = "ip6-lookup",
- [L2T_L2_NEXT_ETHERNET_INPUT] = "ethernet-input",
- [L2T_L2_NEXT_DROP] = "error-drop",
+ [L2T_L2_NEXT_IP6_LOOKUP] = "ip6-lookup",
+ [L2T_L2_NEXT_ETHERNET_INPUT] = "ethernet-input",
+ [L2T_L2_NEXT_DROP] = "error-drop",
},
};
+/* *INDENT-ON* */
-VLIB_NODE_FUNCTION_MULTIARCH (l2t_l2_node, l2t_l2_node_fn)
+VLIB_NODE_FUNCTION_MULTIARCH (l2t_l2_node, l2t_l2_node_fn);
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
Code Review / vpp.git / blobdiff