#include <vnet/dpo/receive_dpo.h>
#include <vnet/dpo/ip_null_dpo.h>
#include <vnet/dpo/l3_proxy_dpo.h>
-#include <vnet/ip/ip6_neighbor.h>
-#include <vnet/ethernet/arp.h>
/**
* @file
};
/* *INDENT-ON* */
-/*
- * The next two routines address a longstanding script hemorrhoid.
- * Probing a v4 or v6 neighbor needs to appear to be synchronous,
- * or dependent route-adds will simply fail.
- */
-static clib_error_t *
-ip6_probe_neighbor_wait (vlib_main_t * vm, ip6_address_t * a, u32 sw_if_index,
- int retry_count)
-{
- vnet_main_t *vnm = vnet_get_main ();
- clib_error_t *e;
- int i;
- int resolved = 0;
- uword event_type;
- uword *event_data = 0;
-
- ASSERT (vlib_in_process_context (vm));
-
- if (retry_count > 0)
- vnet_register_ip6_neighbor_resolution_event
- (vnm, a, vlib_get_current_process (vm)->node_runtime.node_index,
- 1 /* event */ , 0 /* data */ );
-
- for (i = 0; i < retry_count; i++)
- {
- /* The interface may be down, etc. */
- e = ip6_probe_neighbor (vm, a, sw_if_index, 0);
-
- if (e)
- return e;
-
- vlib_process_wait_for_event_or_clock (vm, 1.0);
- event_type = vlib_process_get_events (vm, &event_data);
- switch (event_type)
- {
- case 1: /* resolved... */
- vlib_cli_output (vm, "Resolved %U", format_ip6_address, a);
- resolved = 1;
- goto done;
-
- case ~0: /* timeout */
- break;
-
- default:
- clib_warning ("unknown event_type %d", event_type);
- }
- vec_reset_length (event_data);
- }
-
-done:
-
- if (!resolved)
- return clib_error_return (0, "Resolution failed for %U",
- format_ip6_address, a);
- return 0;
-}
-
-static clib_error_t *
-ip4_probe_neighbor_wait (vlib_main_t * vm, ip4_address_t * a, u32 sw_if_index,
- int retry_count)
-{
- vnet_main_t *vnm = vnet_get_main ();
- clib_error_t *e;
- int i;
- int resolved = 0;
- uword event_type;
- uword *event_data = 0;
-
- ASSERT (vlib_in_process_context (vm));
-
- if (retry_count > 0)
- vnet_register_ip4_arp_resolution_event
- (vnm, a, vlib_get_current_process (vm)->node_runtime.node_index,
- 1 /* event */ , 0 /* data */ );
-
- for (i = 0; i < retry_count; i++)
- {
- /* The interface may be down, etc. */
- e = ip4_probe_neighbor (vm, a, sw_if_index, 0);
-
- if (e)
- return e;
-
- vlib_process_wait_for_event_or_clock (vm, 1.0);
- event_type = vlib_process_get_events (vm, &event_data);
- switch (event_type)
- {
- case 1: /* resolved... */
- vlib_cli_output (vm, "Resolved %U", format_ip4_address, a);
- resolved = 1;
- goto done;
-
- case ~0: /* timeout */
- break;
-
- default:
- clib_warning ("unknown event_type %d", event_type);
- }
- vec_reset_length (event_data);
- }
-
-done:
-
- vec_reset_length (event_data);
-
- if (!resolved)
- return clib_error_return (0, "Resolution failed for %U",
- format_ip4_address, a);
- return 0;
-}
-
-static clib_error_t *
-probe_neighbor_address (vlib_main_t * vm,
- unformat_input_t * input, vlib_cli_command_t * cmd)
-{
- vnet_main_t *vnm = vnet_get_main ();
- unformat_input_t _line_input, *line_input = &_line_input;
- ip4_address_t a4;
- ip6_address_t a6;
- clib_error_t *error = 0;
- u32 sw_if_index = ~0;
- int retry_count = 3;
- int is_ip4 = 1;
- int address_set = 0;
-
- /* Get a line of input. */
- if (!unformat_user (input, unformat_line_input, line_input))
- return 0;
-
- while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
- {
- if (unformat_user (line_input, unformat_vnet_sw_interface, vnm,
- &sw_if_index))
- ;
- else if (unformat (line_input, "retry %d", &retry_count))
- ;
-
- else if (unformat (line_input, "%U", unformat_ip4_address, &a4))
- address_set++;
- else if (unformat (line_input, "%U", unformat_ip6_address, &a6))
- {
- address_set++;
- is_ip4 = 0;
- }
- else
- {
- error = clib_error_return (0, "unknown input '%U'",
- format_unformat_error, line_input);
- goto done;
- }
- }
-
- if (sw_if_index == ~0)
- {
- error = clib_error_return (0, "Interface required, not set.");
- goto done;
- }
- if (address_set == 0)
- {
- error = clib_error_return (0, "ip address required, not set.");
- goto done;
- }
- if (address_set > 1)
- {
- error = clib_error_return (0, "Multiple ip addresses not supported.");
- goto done;
- }
-
- if (is_ip4)
- error = ip4_probe_neighbor_wait (vm, &a4, sw_if_index, retry_count);
- else
- error = ip6_probe_neighbor_wait (vm, &a6, sw_if_index, retry_count);
-
-done:
- unformat_free (line_input);
-
- return error;
-}
-
-/*?
- * The '<em>ip probe-neighbor</em>' command ARPs for IPv4 addresses or
- * attempts IPv6 neighbor discovery depending on the supplied IP address
- * format.
- *
- * @note This command will not immediately affect the indicated FIB; it
- * is not suitable for use in establishing a FIB entry prior to adding
- * recursive FIB entries. As in: don't use it in a script to probe a
- * gateway prior to adding a default route. It won't work. Instead,
- * configure a static ARP cache entry [see '<em>set ip arp</em>'], or
- * a static IPv6 neighbor [see '<em>set ip6 neighbor</em>'].
- *
- * @cliexpar
- * Example of probe for an IPv4 address:
- * @cliexcmd{ip probe-neighbor GigabitEthernet2/0/0 172.16.1.2}
-?*/
-/* *INDENT-OFF* */
-VLIB_CLI_COMMAND (ip_probe_neighbor_command, static) = {
- .path = "ip probe-neighbor",
- .function = probe_neighbor_address,
- .short_help = "ip probe-neighbor <interface> <ip4-addr> | <ip6-addr> [retry nn]",
- .is_mp_safe = 1,
-};
-/* *INDENT-ON* */
-
clib_error_t *
vnet_ip_container_proxy_add_del (vnet_ip_container_proxy_args_t * args)
{
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