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authorshwethab <shwetha.bhandari@gmail.com>2017-04-11 06:21:44 +0000
committerDamjan Marion <dmarion.lists@gmail.com>2017-05-17 18:39:46 +0000
commit883a4bd4ee2d69f1f05870152de14acd91c96df4 (patch)
tree1b800c0d5ada2aacc40e1c1df142d28a7e852eeb /src/plugins/ioam
parentbfd9227e6da567e0e19e026afe94cd4c0b65f725 (diff)
ioam: configuration for SRv6 localsid (VPP-693)
This add debug cli to accept SRv6 localsid that will be used to attract the return traffic for M-Anycast flows. Change-Id: I8f8dd115c36498141ae4cb143c6584141950b1d3 Signed-off-by: shwethab <shwetha.bhandari@gmail.com> (cherry picked from commit 00c14a94c34fac89e6e589c4a7aad20d8dd183dc)
Diffstat (limited to 'src/plugins/ioam')
-rw-r--r--src/plugins/ioam/ip6/ioam_cache.c52
-rw-r--r--src/plugins/ioam/ip6/ioam_cache.h18
-rw-r--r--src/plugins/ioam/ip6/ioam_cache_node.c1
-rw-r--r--src/plugins/ioam/ip6/ioam_cache_tunnel_select_node.c6
4 files changed, 54 insertions, 23 deletions
diff --git a/src/plugins/ioam/ip6/ioam_cache.c b/src/plugins/ioam/ip6/ioam_cache.c
index 92e7075d680..4c9997f4923 100644
--- a/src/plugins/ioam/ip6/ioam_cache.c
+++ b/src/plugins/ioam/ip6/ioam_cache.c
@@ -94,13 +94,16 @@ ioam_e2e_cache_trace_handler (u8 * s, ip6_hop_by_hop_option_t * opt)
/* Action function shared between message handler and debug CLI */
int
-ioam_cache_ip6_enable_disable (ioam_cache_main_t * em, u8 is_disable)
+ioam_cache_ip6_enable_disable (ioam_cache_main_t * em,
+ ip6_address_t * sr_localsid, u8 is_disable)
{
vlib_main_t *vm = em->vlib_main;
if (is_disable == 0)
{
ioam_cache_table_init (vm);
+ em->sr_localsid_cache.as_u64[0] = sr_localsid->as_u64[0];
+ em->sr_localsid_cache.as_u64[1] = sr_localsid->as_u64[1];
ip6_hbh_set_next_override (em->cache_hbh_slot);
ip6_hbh_register_option (HBH_OPTION_TYPE_IOAM_EDGE_TO_EDGE_ID,
0, ioam_e2e_id_trace_handler);
@@ -112,6 +115,8 @@ ioam_cache_ip6_enable_disable (ioam_cache_main_t * em, u8 is_disable)
{
ip6_hbh_set_next_override (IP6_LOOKUP_NEXT_POP_HOP_BY_HOP);
ioam_cache_table_destroy (vm);
+ em->sr_localsid_cache.as_u64[0] = 0;
+ em->sr_localsid_cache.as_u64[1] = 0;
ip6_hbh_unregister_option (HBH_OPTION_TYPE_IOAM_EDGE_TO_EDGE_ID);
ip6_hbh_unregister_option (HBH_OPTION_TYPE_IOAM_E2E_CACHE_ID);
}
@@ -123,7 +128,9 @@ ioam_cache_ip6_enable_disable (ioam_cache_main_t * em, u8 is_disable)
int
ioam_tunnel_select_ip6_enable_disable (ioam_cache_main_t * em,
u8 criteria,
- u8 no_of_responses, u8 is_disable)
+ u8 no_of_responses,
+ ip6_address_t * sr_localsid,
+ u8 is_disable)
{
vlib_main_t *vm = em->vlib_main;
@@ -132,6 +139,8 @@ ioam_tunnel_select_ip6_enable_disable (ioam_cache_main_t * em,
ioam_cache_ts_table_init (vm);
em->criteria_oneway = criteria;
em->wait_for_responses = no_of_responses;
+ em->sr_localsid_ts.as_u64[0] = sr_localsid->as_u64[0];
+ em->sr_localsid_ts.as_u64[1] = sr_localsid->as_u64[1];
ip6_hbh_set_next_override (em->ts_hbh_slot);
ip6_ioam_ts_cache_set_rewrite ();
ip6_hbh_register_option (HBH_OPTION_TYPE_IOAM_EDGE_TO_EDGE_ID,
@@ -146,6 +155,8 @@ ioam_tunnel_select_ip6_enable_disable (ioam_cache_main_t * em,
{
ioam_cache_ts_timer_node_enable (vm, 0);
ip6_hbh_set_next_override (IP6_LOOKUP_NEXT_POP_HOP_BY_HOP);
+ em->sr_localsid_ts.as_u64[0] = 0;
+ em->sr_localsid_ts.as_u64[1] = 0;
ioam_cache_ts_table_destroy (vm);
ip6_ioam_ts_cache_cleanup_rewrite ();
ip6_hbh_unregister_option (HBH_OPTION_TYPE_IOAM_EDGE_TO_EDGE_ID);
@@ -161,9 +172,13 @@ static void vl_api_ioam_cache_ip6_enable_disable_t_handler
{
vl_api_ioam_cache_ip6_enable_disable_reply_t *rmp;
ioam_cache_main_t *cm = &ioam_cache_main;
+ ip6_address_t sr_localsid;
int rv;
- rv = ioam_cache_ip6_enable_disable (cm, (int) (mp->is_disable));
+ sr_localsid.as_u64[0] = 0;
+ sr_localsid.as_u64[1] = 0;
+ rv =
+ ioam_cache_ip6_enable_disable (cm, &sr_localsid, (int) (mp->is_disable));
REPLY_MACRO (VL_API_IOAM_CACHE_IP6_ENABLE_DISABLE_REPLY);
}
@@ -205,15 +220,25 @@ set_ioam_cache_command_fn (vlib_main_t * vm,
{
ioam_cache_main_t *em = &ioam_cache_main;
u8 is_disable = 0;
+ ip6_address_t sr_localsid;
+ u8 address_set = 0;
while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
{
if (unformat (input, "disable"))
is_disable = 1;
+ else if (!address_set
+ && unformat (input, "sr_localsid %U", unformat_ip6_address,
+ &sr_localsid))
+ address_set = 1;
else
break;
}
- ioam_cache_ip6_enable_disable (em, is_disable);
+
+ if (is_disable == 0 && !address_set)
+ return clib_error_return (0, "Error: SRv6 LocalSID address is mandatory");
+
+ ioam_cache_ip6_enable_disable (em, &sr_localsid, is_disable);
return 0;
}
@@ -222,7 +247,8 @@ set_ioam_cache_command_fn (vlib_main_t * vm,
VLIB_CLI_COMMAND (set_ioam_cache_command, static) =
{
.path = "set ioam ip6 cache",.short_help =
- "set ioam ip6 cache [disable]",.function = set_ioam_cache_command_fn};
+ "set ioam ip6 cache sr_localsid <ip6 address> [disable]",.function =
+ set_ioam_cache_command_fn};
/* *INDENT_ON* */
#define IOAM_TS_WAIT_FOR_RESPONSES 3
@@ -234,7 +260,10 @@ set_ioam_tunnel_select_command_fn (vlib_main_t * vm,
ioam_cache_main_t *em = &ioam_cache_main;
u8 is_disable = 0;
u8 one_way = 0;
+ ip6_address_t sr_localsid;
+ u8 address_set = 0;
u8 no_of_responses = IOAM_TS_WAIT_FOR_RESPONSES;
+
while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
{
if (unformat (input, "disable"))
@@ -245,12 +274,19 @@ set_ioam_tunnel_select_command_fn (vlib_main_t * vm,
one_way = 1;
else if (unformat (input, "wait_for_responses %d", &no_of_responses))
;
+ else if (!address_set
+ && unformat (input, "sr_localsid %U", unformat_ip6_address,
+ &sr_localsid))
+ address_set = 1;
else
break;
}
+ if (is_disable == 0 && !address_set)
+ return clib_error_return (0,
+ "Error: SRv6 LocalSID address is mandatory to receive response.");
ioam_tunnel_select_ip6_enable_disable (em, one_way, no_of_responses,
- is_disable);
+ &sr_localsid, is_disable);
return 0;
}
@@ -259,8 +295,8 @@ set_ioam_tunnel_select_command_fn (vlib_main_t * vm,
VLIB_CLI_COMMAND (set_ioam_cache_ts_command, static) =
{
.path = "set ioam ip6 sr-tunnel-select",.short_help =
- "set ioam ip6 sr-tunnel-select [disable] [oneway|rtt] [wait_for_responses <n|default 3>]",.function
- = set_ioam_tunnel_select_command_fn};
+ "set ioam ip6 sr-tunnel-select [disable] [oneway|rtt] [wait_for_responses <n|default 3>] \
+ [sr_localsid <ip6 address>]",.function = set_ioam_tunnel_select_command_fn};
/* *INDENT_ON* */
static void
diff --git a/src/plugins/ioam/ip6/ioam_cache.h b/src/plugins/ioam/ip6/ioam_cache.h
index e668ad7f5b4..25a8fb65729 100644
--- a/src/plugins/ioam/ip6/ioam_cache.h
+++ b/src/plugins/ioam/ip6/ioam_cache.h
@@ -173,6 +173,7 @@ typedef struct
/* The current rewrite string being used */
u8 *rewrite;
u8 rewrite_pool_index_offset;
+ ip6_address_t sr_localsid_cache;
u64 lookup_table_nbuckets;
u64 lookup_table_size;
@@ -190,6 +191,7 @@ typedef struct
*/
bool criteria_oneway;
u8 wait_for_responses;
+ ip6_address_t sr_localsid_ts;
/* convenience */
vlib_main_t *vlib_main;
@@ -276,17 +278,11 @@ typedef CLIB_PACKED (struct
static inline void
ioam_e2e_id_rewrite_handler (ioam_e2e_id_option_t * e2e_option,
- vlib_buffer_t * b0)
+ ip6_address_t * address)
{
- ip6_main_t *im = &ip6_main;
- ip6_address_t *my_address = 0;
- my_address =
- ip6_interface_first_address (im, vnet_buffer (b0)->sw_if_index[VLIB_RX]);
- if (my_address)
- {
- e2e_option->id.as_u64[0] = my_address->as_u64[0];
- e2e_option->id.as_u64[1] = my_address->as_u64[1];
- }
+ e2e_option->id.as_u64[0] = address->as_u64[0];
+ e2e_option->id.as_u64[1] = address->as_u64[1];
+
}
/* Following functions are for the caching of ioam header
@@ -400,7 +396,7 @@ ioam_cache_add (vlib_buffer_t * b0,
/* suffix rewrite string with e2e ID option */
e2e = (ioam_e2e_id_option_t *) (entry->ioam_rewrite_string + e2e_id_offset);
- ioam_e2e_id_rewrite_handler (e2e, b0);
+ ioam_e2e_id_rewrite_handler (e2e, &cm->sr_localsid_cache);
entry->my_address_offset = (u8 *) (&e2e->id) - (u8 *) hbh0;
/* add it to hash, replacing and freeing any collision for now */
diff --git a/src/plugins/ioam/ip6/ioam_cache_node.c b/src/plugins/ioam/ip6/ioam_cache_node.c
index d930f3395dc..dd27e127a09 100644
--- a/src/plugins/ioam/ip6/ioam_cache_node.c
+++ b/src/plugins/ioam/ip6/ioam_cache_node.c
@@ -355,7 +355,6 @@ ip6_add_from_cache_hbh_node_fn (vlib_main_t * vm,
clib_memcpy (&srh0->segments[1],
(u8 *) hbh0 + entry->my_address_offset,
sizeof (ip6_address_t));
- srh0->segments_left--;
ioam_cache_entry_free (entry);
/* Patch the protocol chain, insert the h-b-h (type 0) header */
diff --git a/src/plugins/ioam/ip6/ioam_cache_tunnel_select_node.c b/src/plugins/ioam/ip6/ioam_cache_tunnel_select_node.c
index ca06607d06c..79ee58eccda 100644
--- a/src/plugins/ioam/ip6/ioam_cache_tunnel_select_node.c
+++ b/src/plugins/ioam/ip6/ioam_cache_tunnel_select_node.c
@@ -424,7 +424,7 @@ ip6_reset_ts_hbh_node_fn (vlib_main_t * vm,
ioam_e2e_id_rewrite_handler ((ioam_e2e_id_option_t *)
((u8 *) e2e +
sizeof (ioam_e2e_cache_option_t)),
- b0);
+ &cm->sr_localsid_ts);
/* Patch the protocol chain, insert the h-b-h (type 0) header */
hbh0->protocol = ip0->protocol;
ip0->protocol = 0;
@@ -484,7 +484,7 @@ ip6_reset_ts_hbh_node_fn (vlib_main_t * vm,
ioam_e2e_id_rewrite_handler ((ioam_e2e_id_option_t *)
((u8 *) e2e +
sizeof (ioam_e2e_cache_option_t)),
- b1);
+ &cm->sr_localsid_ts);
/* Patch the protocol chain, insert the h-b-h (type 0) header */
hbh1->protocol = ip1->protocol;
ip1->protocol = 0;
@@ -590,7 +590,7 @@ ip6_reset_ts_hbh_node_fn (vlib_main_t * vm,
ioam_e2e_id_rewrite_handler ((ioam_e2e_id_option_t *)
((u8 *) e2e +
sizeof (ioam_e2e_cache_option_t)),
- b0);
+ &cm->sr_localsid_ts);
/* Patch the protocol chain, insert the h-b-h (type 0) header */
hbh0->protocol = ip0->protocol;
ip0->protocol = 0;