#include <vnet/ethernet/packet.h>
#include <vnet/ip/ip.h>
-// Per-subinterface L2 feature configuration
+/* Per-subinterface L2 feature configuration */
-typedef struct {
+typedef struct
+{
- union {
- u16 bd_index; // bridge domain id
- u32 output_sw_if_index; // for xconnect
+ union
+ {
+ u16 bd_index; /* bridge domain id */
+ u32 output_sw_if_index; /* for xconnect */
};
- // Interface mode. If both are 0, this interface is in L3 mode
- u8 xconnect;
- u8 bridge;
+ /* Interface mode. If both are 0, this interface is in L3 mode */
+ u8 xconnect;
+ u8 bridge;
- // this is the bvi interface for the bridge-domain
- u8 bvi;
+ /* this is the bvi interface for the bridge-domain */
+ u8 bvi;
- // config for which input features are configured on this interface
+ /* config for which input features are configured on this interface */
u32 feature_bitmap;
- // some of these flags are also in the feature bitmap
- u8 learn_enable;
- u8 fwd_enable;
- u8 flood_enable;
+ /* some of these flags are also in the feature bitmap */
+ u8 learn_enable;
+ u8 fwd_enable;
+ u8 flood_enable;
- // split horizon group
- u8 shg;
+ /* split horizon group */
+ u8 shg;
} l2_input_config_t;
-typedef struct {
+typedef struct
+{
- // Next nodes for the feature bitmap
+ /* Next nodes for the feature bitmap */
u32 feat_next_node_index[32];
/* config vector indexed by sw_if_index */
l2_input_config_t *configs;
- /* bridge domain config vector indexed by BD ID */
+ /* bridge domain config vector indexed by bd_index */
l2_bridge_domain_t *bd_configs;
/* convenience variables */
- vlib_main_t * vlib_main;
- vnet_main_t * vnet_main;
+ vlib_main_t *vlib_main;
+ vnet_main_t *vnet_main;
} l2input_main_t;
extern l2input_main_t l2input_main;
extern vlib_node_registration_t l2input_node;
-static_always_inline l2_bridge_domain_t *
+static_always_inline l2_bridge_domain_t *
l2input_bd_config_from_index (l2input_main_t * l2im, u32 bd_index)
{
- l2_bridge_domain_t * bd_config;
+ l2_bridge_domain_t *bd_config;
- bd_config = vec_elt_at_index (l2im->bd_configs, bd_index);
- return bd_is_valid (bd_config) ? bd_config : NULL;
+ bd_config = vec_elt_at_index (l2im->bd_configs, bd_index);
+ return bd_is_valid (bd_config) ? bd_config : NULL;
}
-// L2 input features
+/* L2 input indication packet is from BVI, using -2 */
+#define L2INPUT_BVI ((u32) (~0-1))
-// Mappings from feature ID to graph node name
-#define foreach_l2input_feat \
+/* L2 input features */
+
+/* Mappings from feature ID to graph node name */
+#define foreach_l2input_feat \
_(DROP, "feature-bitmap-drop") \
- _(CLASSIFY, "l2-classify") \
_(XCONNECT, "l2-output") \
- _(IPIW, "feature-bitmap-drop") \
_(FLOOD, "l2-flood") \
_(ARP_TERM, "arp-term-l2bd") \
_(UU_FLOOD, "l2-flood") \
_(LEARN, "l2-learn") \
_(VTR, "l2-input-vtr") \
_(VPATH, "vpath-input-l2") \
- _(CTRL_PKT, "feature-bitmap-drop") \
- _(L2PT, "feature-bitmap-drop") \
- _(IGMP_SNOOP, "feature-bitmap-drop") \
- _(MLD_SNOOP, "feature-bitmap-drop") \
- _(DHCP_SNOOP, "feature-bitmap-drop") \
- _(DAI, "feature-bitmap-drop") \
- _(IPSG, "feature-bitmap-drop") \
_(ACL, "l2-input-acl") \
- _(QOS, "feature-bitmap-drop") \
- _(CFM, "feature-bitmap-drop") \
- _(SPAN, "feature-bitmap-drop")
+ _(POLICER_CLAS, "l2-policer-classify") \
+ _(INPUT_CLASSIFY, "l2-input-classify")
-// Feature bitmap positions
-typedef enum {
+/* Feature bitmap positions */
+typedef enum
+{
#define _(sym,str) L2INPUT_FEAT_##sym##_BIT,
foreach_l2input_feat
#undef _
- L2INPUT_N_FEAT,
+ L2INPUT_N_FEAT,
} l2input_feat_t;
-// Feature bit masks
-typedef enum {
+/* Feature bit masks */
+typedef enum
+{
#define _(sym,str) L2INPUT_FEAT_##sym = (1<<L2INPUT_FEAT_##sym##_BIT),
foreach_l2input_feat
#undef _
} l2input_feat_masks_t;
-
-// Return an array of strings containing graph node names of each feature
-char **l2input_get_feat_names(void);
+
+/** Return an array of strings containing graph node names of each feature */
+char **l2input_get_feat_names (void);
-static_always_inline u8 bd_feature_flood (l2_bridge_domain_t * bd_config)
+static_always_inline u8
+bd_feature_flood (l2_bridge_domain_t * bd_config)
{
- return ((bd_config->feature_bitmap & L2INPUT_FEAT_FLOOD) ==
- L2INPUT_FEAT_FLOOD);
+ return ((bd_config->feature_bitmap & L2INPUT_FEAT_FLOOD) ==
+ L2INPUT_FEAT_FLOOD);
}
-static_always_inline u8 bd_feature_uu_flood (l2_bridge_domain_t * bd_config)
+static_always_inline u8
+bd_feature_uu_flood (l2_bridge_domain_t * bd_config)
{
- return ((bd_config->feature_bitmap & L2INPUT_FEAT_UU_FLOOD) ==
- L2INPUT_FEAT_UU_FLOOD);
+ return ((bd_config->feature_bitmap & L2INPUT_FEAT_UU_FLOOD) ==
+ L2INPUT_FEAT_UU_FLOOD);
}
-static_always_inline u8 bd_feature_forward (l2_bridge_domain_t * bd_config)
+static_always_inline u8
+bd_feature_forward (l2_bridge_domain_t * bd_config)
{
- return ((bd_config->feature_bitmap & L2INPUT_FEAT_FWD) ==
- L2INPUT_FEAT_FWD);
+ return ((bd_config->feature_bitmap & L2INPUT_FEAT_FWD) == L2INPUT_FEAT_FWD);
}
-static_always_inline u8 bd_feature_learn (l2_bridge_domain_t * bd_config)
+static_always_inline u8
+bd_feature_learn (l2_bridge_domain_t * bd_config)
{
- return ((bd_config->feature_bitmap & L2INPUT_FEAT_LEARN) ==
- L2INPUT_FEAT_LEARN);
+ return ((bd_config->feature_bitmap & L2INPUT_FEAT_LEARN) ==
+ L2INPUT_FEAT_LEARN);
}
-static_always_inline u8 bd_feature_arp_term (l2_bridge_domain_t * bd_config)
+static_always_inline u8
+bd_feature_arp_term (l2_bridge_domain_t * bd_config)
{
- return ((bd_config->feature_bitmap & L2INPUT_FEAT_ARP_TERM) ==
- L2INPUT_FEAT_ARP_TERM);
+ return ((bd_config->feature_bitmap & L2INPUT_FEAT_ARP_TERM) ==
+ L2INPUT_FEAT_ARP_TERM);
}
-// Masks for eliminating features that do not apply to a packet
-
-#define IP4_FEAT_MASK ~(L2INPUT_FEAT_CTRL_PKT | \
- L2INPUT_FEAT_MLD_SNOOP | \
- L2INPUT_FEAT_L2PT | \
- L2INPUT_FEAT_CFM | \
- L2INPUT_FEAT_DAI)
-
-#define IP6_FEAT_MASK ~(L2INPUT_FEAT_CTRL_PKT | \
- L2INPUT_FEAT_IGMP_SNOOP | \
- L2INPUT_FEAT_L2PT | \
- L2INPUT_FEAT_CFM | \
- L2INPUT_FEAT_DAI)
-
-#define IP_UDP_TCP_FEAT_MASK ~(L2INPUT_FEAT_CTRL_PKT | \
- L2INPUT_FEAT_L2PT | \
- L2INPUT_FEAT_IGMP_SNOOP | \
- L2INPUT_FEAT_MLD_SNOOP | \
- L2INPUT_FEAT_DHCP_SNOOP | \
- L2INPUT_FEAT_CFM | \
- L2INPUT_FEAT_DAI)
-
-#define MPLS_FEAT_MASK ~(L2INPUT_FEAT_CTRL_PKT | \
- L2INPUT_FEAT_L2PT | \
- L2INPUT_FEAT_IGMP_SNOOP | \
- L2INPUT_FEAT_MLD_SNOOP | \
- L2INPUT_FEAT_DHCP_SNOOP | \
- L2INPUT_FEAT_CFM | \
- L2INPUT_FEAT_DAI)
-
-
-// Get a pointer to the config for the given interface
-l2_input_config_t * l2input_intf_config (u32 sw_if_index);
-
-// Enable (or disable) the feature in the bitmap for the given interface
+/** Masks for eliminating features that do not apply to a packet */
+
+/** Get a pointer to the config for the given interface */
+l2_input_config_t *l2input_intf_config (u32 sw_if_index);
+
+/* Enable (or disable) the feature in the bitmap for the given interface */
u32 l2input_intf_bitmap_enable (u32 sw_if_index,
- u32 feature_bitmap,
- u32 enable);
+ u32 feature_bitmap, u32 enable);
-//Sets modifies flags from a bridge domain
-u32 l2input_set_bridge_features(u32 bd_index,
- u32 feat_mask,
- u32 feat_value);
+/* Sets modifies flags from a bridge domain */
+u32 l2input_set_bridge_features (u32 bd_index, u32 feat_mask, u32 feat_value);
#define MODE_L3 0
#define MODE_ERROR_BVI_DEF 2
u32 set_int_l2_mode (vlib_main_t * vm,
- vnet_main_t * vnet_main,
- u32 mode,
- u32 sw_if_index,
- u32 bd_index,
- u32 bvi,
- u32 shg,
- u32 xc_sw_if_index);
+ vnet_main_t * vnet_main,
+ u32 mode,
+ u32 sw_if_index,
+ u32 bd_index, u32 bvi, u32 shg, u32 xc_sw_if_index);
static inline void
vnet_update_l2_len (vlib_buffer_t * b)
{
- ethernet_header_t * eth;
+ ethernet_header_t *eth;
u16 ethertype;
u8 vlan_count = 0;
/* point at currrent l2 hdr */
eth = vlib_buffer_get_current (b);
- /*
+ /*
* l2-output pays no attention to this
* but the tag push/pop code on an l2 subif needs it.
- *
- * Determine l2 header len, check for up to 2 vlans
+ *
+ * Determine l2 header len, check for up to 2 vlans
*/
- vnet_buffer(b)->l2.l2_len = sizeof(ethernet_header_t);
- ethertype = clib_net_to_host_u16(eth->type);
- if ((ethertype == ETHERNET_TYPE_VLAN) ||
- (ethertype == ETHERNET_TYPE_DOT1AD) ||
- (ethertype == ETHERNET_TYPE_VLAN_9100) ||
- (ethertype == ETHERNET_TYPE_VLAN_9200)) {
- ethernet_vlan_header_t * vlan;
- vnet_buffer(b)->l2.l2_len += sizeof (*vlan);
- vlan_count = 1;
- vlan = (void *) (eth+1);
- ethertype = clib_net_to_host_u16 (vlan->type);
- if (ethertype == ETHERNET_TYPE_VLAN) {
- vnet_buffer(b)->l2.l2_len += sizeof (*vlan);
- vlan_count = 2;
+ vnet_buffer (b)->l2.l2_len = sizeof (ethernet_header_t);
+ ethertype = clib_net_to_host_u16 (eth->type);
+ if (ethernet_frame_is_tagged (ethertype))
+ {
+ ethernet_vlan_header_t *vlan;
+ vnet_buffer (b)->l2.l2_len += sizeof (*vlan);
+ vlan_count = 1;
+ vlan = (void *) (eth + 1);
+ ethertype = clib_net_to_host_u16 (vlan->type);
+ if (ethertype == ETHERNET_TYPE_VLAN)
+ {
+ vnet_buffer (b)->l2.l2_len += sizeof (*vlan);
+ vlan_count = 2;
+ }
}
- }
- ethernet_buffer_set_vlan_count(b, vlan_count);
+ ethernet_buffer_set_vlan_count (b, vlan_count);
}
/*
- * Compute flow hash of an ethernet packet, use 5-tuple hash if L3 packet
- * is ip4 or ip6. Otherwise hash on smac/dmac/etype.
- * The vlib buffer current pointer is expected to be at ethernet header
+ * Compute flow hash of an ethernet packet, use 5-tuple hash if L3 packet
+ * is ip4 or ip6. Otherwise hash on smac/dmac/etype.
+ * The vlib buffer current pointer is expected to be at ethernet header
* and vnet l2.l2_len is exppected to be setup already.
*/
-static inline u32 vnet_l2_compute_flow_hash (vlib_buffer_t *b)
+static inline u32
+vnet_l2_compute_flow_hash (vlib_buffer_t * b)
{
- ethernet_header_t * eh = vlib_buffer_get_current(b);
- u8 * l3h = (u8 *)eh + vnet_buffer(b)->l2.l2_len;
- u16 ethertype = clib_net_to_host_u16(*(u16 *)(l3h - 2));
-
- if (ethertype == ETHERNET_TYPE_IP4)
- return ip4_compute_flow_hash((ip4_header_t *) l3h, IP_FLOW_HASH_DEFAULT);
- else if (ethertype == ETHERNET_TYPE_IP6)
- return ip6_compute_flow_hash((ip6_header_t *) l3h, IP_FLOW_HASH_DEFAULT);
+ ethernet_header_t *eh = vlib_buffer_get_current (b);
+ u8 *l3h = (u8 *) eh + vnet_buffer (b)->l2.l2_len;
+ u16 ethertype = clib_net_to_host_u16 (*(u16 *) (l3h - 2));
+
+ if (ethertype == ETHERNET_TYPE_IP4)
+ return ip4_compute_flow_hash ((ip4_header_t *) l3h, IP_FLOW_HASH_DEFAULT);
+ else if (ethertype == ETHERNET_TYPE_IP6)
+ return ip6_compute_flow_hash ((ip6_header_t *) l3h, IP_FLOW_HASH_DEFAULT);
else
{
u32 a, b, c;
- u32 * ap = (u32 *) &eh->dst_address[2];
- u32 * bp = (u32 *) &eh->src_address[2];
- a = * ap;
- b = * bp;
+ u32 *ap = (u32 *) & eh->dst_address[2];
+ u32 *bp = (u32 *) & eh->src_address[2];
+ a = *ap;
+ b = *bp;
c = ethertype;
hash_v3_mix32 (a, b, c);
hash_v3_finalize32 (a, b, c);
#endif
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
Code Review / vpp.git / blobdiff