aboutsummaryrefslogtreecommitdiffstats
path: root/src/vnet/mpls/mpls.h
blob: cc3eeed035eb5de2f77ad82c13da0011bdf78aa6 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
/*
 * Copyright (c) 2015 Cisco and/or its affiliates.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at:
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
#ifndef included_vnet_mpls_h
#define included_vnet_mpls_h

#include <vnet/vnet.h>
#include <vnet/mpls/packet.h>
#include <vnet/mpls/mpls_types.h>
#include <vnet/ip/ip4_packet.h>
#include <vnet/ethernet/ethernet.h>
#include <vnet/fib/fib_node.h>
#include <vnet/adj/adj.h>

typedef enum
{
#define mpls_error(n,s) MPLS_ERROR_##n,
#include <vnet/mpls/error.def>
#undef mpls_error
  MPLS_N_ERROR,
} mpls_error_t;

/**
 * @brief Definition of a callback for receiving MPLS interface state change
 * notifications
 */
typedef void (*mpls_interface_state_change_callback_t) (u32 sw_if_index,
							u32 is_enable);

typedef struct
{
  /* MPLS FIB index for each software interface */
  u32 *fib_index_by_sw_if_index;

  /**  A pool of all the MPLS FIBs */
  struct fib_table_t_ *fibs;

  /**  A pool of all the MPLS FIBs */
  struct mpls_fib_t_ *mpls_fibs;

  /** A hash table to lookup the mpls_fib by table ID */
  uword *fib_index_by_table_id;

  /* Feature arc indices */
  u8 input_feature_arc_index;
  u8 output_feature_arc_index;

  /* IP4 enabled count by software interface */
  u8 *mpls_enabled_by_sw_if_index;
} mpls_main_t;

extern mpls_main_t mpls_main;

extern clib_error_t *mpls_feature_init (vlib_main_t * vm);

format_function_t format_mpls_eos_bit;
format_function_t format_mpls_unicast_header_net_byte_order;
format_function_t format_mpls_unicast_label;
format_function_t format_mpls_header;

extern vlib_node_registration_t mpls_input_node;
extern vlib_node_registration_t mpls_output_node;
extern vlib_node_registration_t mpls_midchain_node;

/* Parse mpls protocol as 0xXXXX or protocol name.
   In either host or network byte order. */
unformat_function_t unformat_mpls_label_net_byte_order;
unformat_function_t unformat_mpls_unicast_label;

/* Parse mpls header. */
unformat_function_t unformat_mpls_header;
unformat_function_t unformat_pg_mpls_header;

int mpls_sw_interface_enable_disable (mpls_main_t * mm,
				      u32 sw_if_index,
				      u8 is_enable, u8 is_api);

u8 mpls_sw_interface_is_enabled (u32 sw_if_index);

int mpls_fib_reset_labels (u32 fib_id);

int mpls_dest_cmp (void *a1, void *a2);

int mpls_fib_index_cmp (void *a1, void *a2);

int mpls_label_cmp (void *a1, void *a2);

void mpls_table_create (u32 table_id, u8 is_api, const u8 * name);
void mpls_table_delete (u32 table_id, u8 is_api);

#endif /* included_vnet_mpls_h */

/*
 * fd.io coding-style-patch-verification: ON
 *
 * Local Variables:
 * eval: (c-set-style "gnu")
 * End:
 */
*/ .highlight .mh { color: #0000DD; font-weight: bold } /* Literal.Number.Hex */ .highlight .mi { color: #0000DD; font-weight: bold } /* Literal.Number.Integer */ .highlight .mo { color: #0000DD; font-weight: bold } /* Literal.Number.Oct */ .highlight .sa { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Affix */ .highlight .sb { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Backtick */ .highlight .sc { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Char */ .highlight .dl { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Delimiter */ .highlight .sd { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Doc */ .highlight .s2 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Double */ .highlight .se { color: #0044dd; background-color: #fff0f0 } /* Literal.String.Escape */ .highlight .sh { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Heredoc */ .highlight .si { color: #3333bb; background-color: #fff0f0 } /* Literal.String.Interpol */ .highlight .sx { color: #22bb22; background-color: #f0fff0 } /* Literal.String.Other */ .highlight .sr { color: #008800; background-color: #fff0ff } /* Literal.String.Regex */ .highlight .s1 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Single */ .highlight .ss { color: #aa6600; background-color: #fff0f0 } /* Literal.String.Symbol */ .highlight .bp { color: #003388 } /* Name.Builtin.Pseudo */ .highlight .fm { color: #0066bb; font-weight: bold } /* Name.Function.Magic */ .highlight .vc { color: #336699 } /* Name.Variable.Class */ .highlight .vg { color: #dd7700 } /* Name.Variable.Global */ .highlight .vi { color: #3333bb } /* Name.Variable.Instance */ .highlight .vm { color: #336699 } /* Name.Variable.Magic */ .highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long */ }
/*
 * Copyright (c) 2015 Cisco and/or its affiliates.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at:
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/*
 * interface_funcs.h: VNET interfaces/sub-interfaces exported functions
 *
 * Copyright (c) 2008 Eliot Dresselhaus
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 *  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 *  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 *  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
 *  LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 *  OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 *  WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

#ifndef included_vnet_interface_funcs_h
#define included_vnet_interface_funcs_h

always_inline vnet_hw_interface_t *
vnet_get_hw_interface (vnet_main_t * vnm, u32 hw_if_index)
{
  return pool_elt_at_index (vnm->interface_main.hw_interfaces, hw_if_index);
}

always_inline vnet_hw_interface_t *
vnet_get_hw_interface_safe (vnet_main_t * vnm, u32 hw_if_index)
{
  if (!pool_is_free_index (vnm->interface_main.hw_interfaces, hw_if_index))
    return pool_elt_at_index (vnm->interface_main.hw_interfaces, hw_if_index);
  return (NULL);
}

always_inline vnet_sw_interface_t *
vnet_get_sw_interface (vnet_main_t * vnm, u32 sw_if_index)
{
  return pool_elt_at_index (vnm->interface_main.sw_interfaces, sw_if_index);
}

always_inline vnet_sw_interface_t *
vnet_get_sw_interface_safe (vnet_main_t * vnm, u32 sw_if_index)
{
  if (!pool_is_free_index (vnm->interface_main.sw_interfaces, sw_if_index))
    return pool_elt_at_index (vnm->interface_main.sw_interfaces, sw_if_index);
  return (NULL);
}

always_inline vnet_sw_interface_t *
vnet_get_hw_sw_interface (vnet_main_t * vnm, u32 hw_if_index)
{
  vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
  vnet_sw_interface_t *sw = vnet_get_sw_interface (vnm, hw->sw_if_index);
  ASSERT (sw->type == VNET_SW_INTERFACE_TYPE_HARDWARE);
  return sw;
}

always_inline vnet_sw_interface_t *
vnet_get_sup_sw_interface (vnet_main_t * vnm, u32 sw_if_index)
{
  vnet_sw_interface_t *sw = vnet_get_sw_interface (vnm, sw_if_index);
  if (sw->type == VNET_SW_INTERFACE_TYPE_SUB ||
      sw->type == VNET_SW_INTERFACE_TYPE_PIPE ||
      sw->type == VNET_SW_INTERFACE_TYPE_P2P)
    sw = vnet_get_sw_interface (vnm, sw->sup_sw_if_index);
  return sw;
}

always_inline vnet_hw_interface_t *
vnet_get_sup_hw_interface (vnet_main_t * vnm, u32 sw_if_index)
{
  vnet_sw_interface_t *sw = vnet_get_sup_sw_interface (vnm, sw_if_index);
  ASSERT ((sw->type == VNET_SW_INTERFACE_TYPE_HARDWARE) ||
	  (sw->type == VNET_SW_INTERFACE_TYPE_PIPE));
  return vnet_get_hw_interface (vnm, sw->hw_if_index);
}

always_inline vnet_hw_interface_class_t *
vnet_get_hw_interface_class (vnet_main_t * vnm, u32 hw_class_index)
{
  return vec_elt_at_index (vnm->interface_main.hw_interface_classes,
			   hw_class_index);
}

always_inline vnet_device_class_t *
vnet_get_device_class (vnet_main_t * vnm, u32 dev_class_index)
{
  return vec_elt_at_index (vnm->interface_main.device_classes,
			   dev_class_index);
}

static inline u8 *
vnet_get_sw_interface_tag (vnet_main_t * vnm, u32 sw_if_index)
{
  uword *p;
  p = hash_get (vnm->interface_tag_by_sw_if_index, sw_if_index);
  if (p)
    return ((u8 *) p[0]);
  return 0;
}

static inline void
vnet_set_sw_interface_tag (vnet_main_t * vnm, u8 * tag, u32 sw_if_index)
{
  uword *p;
  p = hash_get (vnm->interface_tag_by_sw_if_index, sw_if_index);
  if (p)
    {
      u8 *oldtag = (u8 *) p[0];
      hash_unset (vnm->interface_tag_by_sw_if_index, sw_if_index);
      vec_free (oldtag);
    }

  hash_set (vnm->interface_tag_by_sw_if_index, sw_if_index, tag);
}

static inline void
vnet_clear_sw_interface_tag (vnet_main_t * vnm, u32 sw_if_index)
{
  uword *p;
  p = hash_get (vnm->interface_tag_by_sw_if_index, sw_if_index);
  if (p)
    {
      u8 *oldtag = (u8 *) p[0];
      hash_unset (vnm->interface_tag_by_sw_if_index, sw_if_index);
      vec_free (oldtag);
    }
}

/**
 * Walk return code
 */
typedef enum walk_rc_t_
{
  WALK_STOP,
  WALK_CONTINUE,
} walk_rc_t;

/**
 * Call back walk type for walking SW indices on a HW interface
 */
typedef walk_rc_t (*vnet_hw_sw_interface_walk_t) (vnet_main_t * vnm,
						  u32 sw_if_index, void *ctx);

/**
 * @brief
 * Walk the SW interfaces on a HW interface - this is the super
 * interface and any sub-interfaces.
 */
void vnet_hw_interface_walk_sw (vnet_main_t * vnm,
				u32 hw_if_index,
				vnet_hw_sw_interface_walk_t fn, void *ctx);

/**
 * Call back walk type for walking SW indices on a HW interface
 */
typedef walk_rc_t (*vnet_sw_interface_walk_t) (vnet_main_t * vnm,
					       vnet_sw_interface_t * si,
					       void *ctx);

/**
 * @brief
 * Walk all the SW interfaces in the system.
 */
void vnet_sw_interface_walk (vnet_main_t * vnm,
			     vnet_sw_interface_walk_t fn, void *ctx);


/**
 * Call back walk type for walking all HW indices
 */
typedef walk_rc_t (*vnet_hw_interface_walk_t) (vnet_main_t * vnm,
					       u32 hw_if_index, void *ctx);

/**
 * @brief
 * Walk all the HW interface
 */
void vnet_hw_interface_walk (vnet_main_t * vnm,
			     vnet_hw_interface_walk_t fn, void *ctx);

/* Register a hardware interface instance. */
u32 vnet_register_interface (vnet_main_t * vnm,
			     u32 dev_class_index,
			     u32 dev_instance,
			     u32 hw_class_index, u32 hw_instance);

/**
 * Set interface output node - for interface registered without its output/tx
 * nodes created because its VNET_DEVICE_CLASS did not specify any tx_function.
 * This is typically the case for tunnel interfaces.
 */
void vnet_set_interface_output_node (vnet_main_t * vnm,
				     u32 hw_if_index, u32 node_index);

/* Creates a software interface given template. */
clib_error_t *vnet_create_sw_interface (vnet_main_t * vnm,
					vnet_sw_interface_t * template,
					u32 * sw_if_index);

void vnet_delete_hw_interface (vnet_main_t * vnm, u32 hw_if_index);
void vnet_delete_sw_interface (vnet_main_t * vnm, u32 sw_if_index);
int vnet_sw_interface_is_p2p (vnet_main_t * vnm, u32 sw_if_index);

always_inline vnet_sw_interface_flags_t
vnet_sw_interface_get_flags (vnet_main_t * vnm, u32 sw_if_index)
{
  vnet_sw_interface_t *sw = vnet_get_sw_interface (vnm, sw_if_index);
  return sw->flags;
}

always_inline uword
vnet_sw_interface_is_valid (vnet_main_t * vnm, u32 sw_if_index)
{
  return !pool_is_free_index (vnm->interface_main.sw_interfaces, sw_if_index);
}

always_inline uword
vnet_hw_interface_is_valid (vnet_main_t * vnm, u32 hw_if_index)
{
  return !pool_is_free_index (vnm->interface_main.hw_interfaces, hw_if_index);
}


always_inline uword
vnet_sw_interface_is_admin_up (vnet_main_t * vnm, u32 sw_if_index)
{
  return (vnet_sw_interface_get_flags (vnm, sw_if_index) &
	  VNET_SW_INTERFACE_FLAG_ADMIN_UP) != 0;
}

always_inline uword
vnet_swif_is_api_visible (vnet_sw_interface_t * si)
{
  return !(si->flags & VNET_SW_INTERFACE_FLAG_HIDDEN);
}

always_inline uword
vnet_sw_interface_is_api_visible (vnet_main_t * vnm, u32 sw_if_index)
{
  vnet_sw_interface_t *si = vnet_get_sw_interface (vnm, sw_if_index);
  return vnet_swif_is_api_visible (si);
}

always_inline uword
vnet_sw_interface_is_api_valid (vnet_main_t * vnm, u32 sw_if_index)
{
  return !pool_is_free_index (vnm->interface_main.sw_interfaces, sw_if_index)
    && vnet_sw_interface_is_api_visible (vnm, sw_if_index);
}

always_inline uword
vnet_hw_interface_get_flags (vnet_main_t * vnm, u32 hw_if_index)
{
  vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
  return hw->flags;
}

always_inline u32
vnet_hw_interface_get_mtu (vnet_main_t * vnm, u32 hw_if_index)
{
  vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
  return hw->max_packet_bytes;
}

always_inline u32
vnet_sw_interface_get_mtu (vnet_main_t * vnm, u32 sw_if_index, vnet_mtu_t af)
{
  vnet_sw_interface_t *sw = vnet_get_sw_interface (vnm, sw_if_index);
  u32 mtu;
  mtu = sw->mtu[af] > 0 ? sw->mtu[af] : sw->mtu[VNET_MTU_L3];
  if (mtu == 0)
    return 9000;		/* $$$ Deal with interface-types not setting MTU */
  return mtu;
}

always_inline uword
vnet_hw_interface_is_link_up (vnet_main_t * vnm, u32 hw_if_index)
{
  return (vnet_hw_interface_get_flags (vnm, hw_if_index) &
	  VNET_HW_INTERFACE_FLAG_LINK_UP) != 0;
}

always_inline vlib_frame_t *
vnet_get_frame_to_sw_interface (vnet_main_t * vnm, u32 sw_if_index)
{
  vnet_hw_interface_t *hw = vnet_get_sup_hw_interface (vnm, sw_if_index);
  return vlib_get_frame_to_node (vlib_get_main (), hw->output_node_index);
}

always_inline void
vnet_put_frame_to_sw_interface (vnet_main_t * vnm, u32 sw_if_index,
				vlib_frame_t * f)
{
  vnet_hw_interface_t *hw = vnet_get_sup_hw_interface (vnm, sw_if_index);
  return vlib_put_frame_to_node (vlib_get_main (), hw->output_node_index, f);
}

/* Change interface flags (e.g. up, down, enable, disable). */
clib_error_t *vnet_hw_interface_set_flags (vnet_main_t * vnm, u32 hw_if_index,
					   u32 flags);

/* Change interface flags (e.g. up, down, enable, disable). */
clib_error_t *vnet_sw_interface_set_flags (vnet_main_t * vnm, u32 sw_if_index,
					   u32 flags);

/* Change interface class. */
clib_error_t *vnet_hw_interface_set_class (vnet_main_t * vnm, u32 hw_if_index,
					   u32 new_hw_class_index);

/* Redirect rx pkts to node */
int vnet_hw_interface_rx_redirect_to_node (vnet_main_t * vnm, u32 hw_if_index,
					   u32 node_index);

void vnet_hw_interface_init_for_class (vnet_main_t * vnm, u32 hw_if_index,
				       u32 hw_class_index, u32 hw_instance);

/* Rename interface */
clib_error_t *vnet_rename_interface (vnet_main_t * vnm, u32 hw_if_index,
				     char *new_name);

/* Change interface mac address*/
clib_error_t *vnet_hw_interface_change_mac_address (vnet_main_t * vnm,
						    u32 hw_if_index,
						    u8 * mac_address);

/* Change rx-mode */
clib_error_t *set_hw_interface_change_rx_mode (vnet_main_t * vnm,
					       u32 hw_if_index,
					       u8 queue_id_valid,
					       u32 queue_id,
					       vnet_hw_interface_rx_mode
					       mode);

/* Set the MTU on the HW interface */
void vnet_hw_interface_set_mtu (vnet_main_t * vnm, u32 hw_if_index, u32 mtu);

/* Set the MTU on the SW interface */
void vnet_sw_interface_set_mtu (vnet_main_t * vnm, u32 sw_if_index, u32 mtu);
void vnet_sw_interface_set_protocol_mtu (vnet_main_t * vnm, u32 sw_if_index,
					 u32 mtu[]);

/* update the unnumbered state of an interface */
void vnet_sw_interface_update_unnumbered (u32 sw_if_index,
					  u32 ip_sw_if_index, u8 enable);

int vnet_sw_interface_stats_collect_enable_disable (u32 sw_if_index,
						    u8 enable);
void vnet_sw_interface_ip_directed_broadcast (vnet_main_t * vnm,
					      u32 sw_if_index, u8 enable);

/* Formats sw/hw interface. */
format_function_t format_vnet_hw_interface;
format_function_t format_vnet_hw_interface_rx_mode;
format_function_t format_vnet_hw_if_index_name;
format_function_t format_vnet_sw_interface;
format_function_t format_vnet_sw_interface_name;
format_function_t format_vnet_sw_interface_name_override;
format_function_t format_vnet_sw_if_index_name;
format_function_t format_vnet_sw_interface_flags;

/* Parses sw/hw interface name -> index. */
unformat_function_t unformat_vnet_sw_interface;
unformat_function_t unformat_vnet_hw_interface;

/* Parses interface flags (up, down, enable, disable, etc.) */
unformat_function_t unformat_vnet_hw_interface_flags;
unformat_function_t unformat_vnet_sw_interface_flags;

/* Node runtime for interface output function. */
typedef struct
{
  u32 hw_if_index;
  u32 sw_if_index;
  u32 dev_instance;
  u32 is_deleted;
} vnet_interface_output_runtime_t;

/* Interface output function. */
void *vnet_interface_output_node_multiarch_select (void);

word vnet_sw_interface_compare (vnet_main_t * vnm, uword sw_if_index0,
				uword sw_if_index1);
word vnet_hw_interface_compare (vnet_main_t * vnm, uword hw_if_index0,
				uword hw_if_index1);

typedef enum
{
  VNET_INTERFACE_OUTPUT_NEXT_DROP,
  VNET_INTERFACE_OUTPUT_NEXT_TX,
} vnet_interface_output_next_t;

typedef enum
{
  VNET_INTERFACE_TX_NEXT_DROP,
  VNET_INTERFACE_TX_N_NEXT,
} vnet_interface_tx_next_t;

#define VNET_SIMULATED_ETHERNET_TX_NEXT_ETHERNET_INPUT VNET_INTERFACE_TX_N_NEXT
#define VNET_SIMULATED_ETHERNET_TX_NEXT_L2_INPUT (VNET_SIMULATED_ETHERNET_TX_NEXT_ETHERNET_INPUT + 1)

typedef enum
{
  VNET_INTERFACE_OUTPUT_ERROR_INTERFACE_DOWN,
  VNET_INTERFACE_OUTPUT_ERROR_INTERFACE_DELETED,
} vnet_interface_output_error_t;

/* Format for interface output traces. */
u8 *format_vnet_interface_output_trace (u8 * s, va_list * va);

serialize_function_t serialize_vnet_interface_state,
  unserialize_vnet_interface_state;

#endif /* included_vnet_interface_funcs_h */

/*
 * fd.io coding-style-patch-verification: ON
 *
 * Local Variables:
 * eval: (c-set-style "gnu")
 * End:
 */