#include <vnet/ethernet/ethernet.h>
#include <vnet/fib/fib_entry.h>
#include <vnet/fib/fib_table.h>
-#include <vnet/dpo/dpo.h>
+#include <vnet/dpo/interface_tx_dpo.h>
#include <vnet/plugin/plugin.h>
#include <vpp/app/version.h>
#include <vnet/ppp/packet.h>
#include <pppoe/pppoe.h>
+#include <vnet/adj/adj_midchain.h>
+#include <vnet/adj/adj_mcast.h>
#include <vppinfra/hash.h>
#include <vppinfra/bihash_template.c>
VNET_DEVICE_CLASS (pppoe_device_class,static) = {
.name = "PPPPOE",
.format_device_name = format_pppoe_name,
- .format_tx_trace = format_pppoe_encap_trace,
.tx_function = dummy_interface_tx,
.admin_up_down_function = pppoe_interface_admin_up_down,
};
return s;
}
-/* *INDENT-OFF* */
-VNET_HW_INTERFACE_CLASS (pppoe_hw_class) =
-{
- .name = "PPPPOE",
- .format_header = format_pppoe_header_with_length,
- .build_rewrite = default_build_rewrite,
- .flags = VNET_HW_INTERFACE_CLASS_FLAG_P2P,
-};
-/* *INDENT-ON* */
-
-#define foreach_copy_field \
-_(session_id) \
-_(encap_if_index) \
-_(decap_fib_index) \
-_(client_ip)
-
-static void
-eth_pppoe_rewrite (pppoe_session_t * t, bool is_ip6)
+static u8 *
+pppoe_build_rewrite (vnet_main_t * vnm,
+ u32 sw_if_index,
+ vnet_link_t link_type, const void *dst_address)
{
- u8 *rw = 0;
int len = sizeof (pppoe_header_t) + sizeof (ethernet_header_t);
+ pppoe_main_t *pem = &pppoe_main;
+ pppoe_session_t *t;
+ u32 session_id;
+ u8 *rw = 0;
+
+ session_id = pem->session_index_by_sw_if_index[sw_if_index];
+ t = pool_elt_at_index (pem->sessions, session_id);
vec_validate_aligned (rw, len - 1, CLIB_CACHE_LINE_BYTES);
pppoe->session_id = clib_host_to_net_u16 (t->session_id);
pppoe->length = 0; /* To be filled in at run-time */
- if (!is_ip6)
+ switch (link_type)
{
+ case VNET_LINK_IP4:
pppoe->ppp_proto = clib_host_to_net_u16 (PPP_PROTOCOL_ip4);
+ break;
+ case VNET_LINK_IP6:
+ pppoe->ppp_proto = clib_host_to_net_u16 (PPP_PROTOCOL_ip6);
+ break;
+ default:
+ break;
}
- else
+
+ return rw;
+}
+
+/**
+ * @brief Fixup the adj rewrite post encap. Insert the packet's length
+ */
+static void
+pppoe_fixup (vlib_main_t * vm, ip_adjacency_t * adj, vlib_buffer_t * b0)
+{
+ pppoe_header_t *pppoe0;
+
+ pppoe0 = vlib_buffer_get_current (b0);
+
+ pppoe0->length = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0)
+ - sizeof (pppoe_header_t)
+ - sizeof (ethernet_header_t));
+}
+
+static void
+pppoe_update_adj (vnet_main_t * vnm, u32 sw_if_index, adj_index_t ai)
+{
+ pppoe_main_t *pem = &pppoe_main;
+ dpo_id_t dpo = DPO_INVALID;
+ ip_adjacency_t *adj;
+ pppoe_session_t *t;
+ u32 session_id;
+
+ ASSERT (ADJ_INDEX_INVALID != ai);
+
+ adj = adj_get (ai);
+
+ switch (adj->lookup_next_index)
{
- pppoe->ppp_proto = clib_host_to_net_u16 (PPP_PROTOCOL_ip6);
+ case IP_LOOKUP_NEXT_ARP:
+ case IP_LOOKUP_NEXT_GLEAN:
+ adj_nbr_midchain_update_rewrite (ai, pppoe_fixup,
+ ADJ_FLAG_NONE,
+ pppoe_build_rewrite (vnm,
+ sw_if_index,
+ adj->ia_link,
+ NULL));
+ break;
+ case IP_LOOKUP_NEXT_MCAST:
+ /*
+ * Construct a partial rewrite from the known ethernet mcast dest MAC
+ * There's no MAC fixup, so the last 2 parameters are 0
+ */
+ adj_mcast_midchain_update_rewrite (ai, pppoe_fixup,
+ ADJ_FLAG_NONE,
+ pppoe_build_rewrite (vnm,
+ sw_if_index,
+ adj->ia_link,
+ NULL), 0, 0);
+ break;
+
+ case IP_LOOKUP_NEXT_DROP:
+ case IP_LOOKUP_NEXT_PUNT:
+ case IP_LOOKUP_NEXT_LOCAL:
+ case IP_LOOKUP_NEXT_REWRITE:
+ case IP_LOOKUP_NEXT_MIDCHAIN:
+ case IP_LOOKUP_NEXT_MCAST_MIDCHAIN:
+ case IP_LOOKUP_NEXT_ICMP_ERROR:
+ case IP_LOOKUP_N_NEXT:
+ ASSERT (0);
+ break;
}
- t->rewrite = rw;
- _vec_len (t->rewrite) = len;
+ session_id = pem->session_index_by_sw_if_index[sw_if_index];
+ t = pool_elt_at_index (pem->sessions, session_id);
+ interface_tx_dpo_add_or_lock (vnet_link_to_dpo_proto (adj->ia_link),
+ t->encap_if_index, &dpo);
+
+ adj_nbr_midchain_stack (ai, &dpo);
- return;
+ dpo_reset (&dpo);
}
+/* *INDENT-OFF* */
+VNET_HW_INTERFACE_CLASS (pppoe_hw_class) =
+{
+ .name = "PPPPOE",
+ .format_header = format_pppoe_header_with_length,
+ .build_rewrite = pppoe_build_rewrite,
+ .update_adjacency = pppoe_update_adj,
+ .flags = VNET_HW_INTERFACE_CLASS_FLAG_P2P,
+};
+/* *INDENT-ON* */
+
+#define foreach_copy_field \
+_(session_id) \
+_(encap_if_index) \
+_(decap_fib_index) \
+_(client_ip)
+
static bool
pppoe_decap_next_is_valid (pppoe_main_t * pem, u32 is_ip6,
u32 decap_fib_index)
clib_memcpy (t->client_mac, a->client_mac, 6);
- eth_pppoe_rewrite (t, is_ip6);
-
/* update pppoe fib with session_index */
result.fields.session_index = t - pem->sessions;
pppoe_update_1 (&pem->session_table,
vnet_sw_interface_set_flags (vnm, sw_if_index,
VNET_SW_INTERFACE_FLAG_ADMIN_UP);
- /* Set pppoe session output node */
- hi->output_node_index = pppoe_encap_node.index;
-
/* add reverse route for client ip */
fib_table_entry_path_add (a->decap_fib_index, &pfx,
FIB_SOURCE_PLUGIN_HI, FIB_ENTRY_FLAG_NONE,
sw_if_index, ~0, 1,
FIB_ROUTE_PATH_FLAG_NONE);
- vec_free (t->rewrite);
pool_put (pem->sessions, t);
}
Code Review / vpp.git / blobdiff