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authorMatus Fabian <matfabia@cisco.com>2016-10-24 03:30:00 -0700
committerOle Trøan <otroan@employees.org>2016-10-31 08:26:40 +0000
commit588144ab4552a5f54b692016ff0543decc28d1ea (patch)
tree058b03a4caa3e551ecaa617833d8120c28a9bef7 /plugins/snat-plugin/snat
parent6ce685d79b1365588a92340e5c45cdbdea92d5db (diff)
VPP-459: SNAT dump API for in and out interfaces
Change-Id: Ie0cba0778b094eaafa960d3f432199e1e3b2d116 Signed-off-by: Matus Fabian <matfabia@cisco.com>
Diffstat (limited to 'plugins/snat-plugin/snat')
-rw-r--r--plugins/snat-plugin/snat/snat.api20
-rw-r--r--plugins/snat-plugin/snat/snat.c172
-rw-r--r--plugins/snat-plugin/snat/snat.h8
-rw-r--r--plugins/snat-plugin/snat/snat_test.c41
4 files changed, 180 insertions, 61 deletions
diff --git a/plugins/snat-plugin/snat/snat.api b/plugins/snat-plugin/snat/snat.api
index b2a21cf2..d7d41f20 100644
--- a/plugins/snat-plugin/snat/snat.api
+++ b/plugins/snat-plugin/snat/snat.api
@@ -92,6 +92,26 @@ define snat_interface_add_del_feature_reply {
i32 retval;
};
+/** \brief Dump interfaces with S-NAT feature
+ @param client_index - opaque cookie to identify the sender
+ @param context - sender context, to match reply w/ request
+*/
+define snat_interface_dump {
+ u32 client_index;
+ u32 context;
+};
+
+/** \brief S-NAT interface details response
+ @param context - sender context, to match reply w/ request
+ @param is_inside - 1 if inside, 0 if outside
+ @param sw_if_index - software index of the interface
+*/
+define snat_interface_details {
+ u32 context;
+ u8 is_inside;
+ u32 sw_if_index;
+};
+
/** \brief Add/delete S-NAT static mapping
@param client_index - opaque cookie to identify the sender
@param context - sender context, to match reply w/ request
diff --git a/plugins/snat-plugin/snat/snat.c b/plugins/snat-plugin/snat/snat.c
index 8490bd83..505f501d 100644
--- a/plugins/snat-plugin/snat/snat.c
+++ b/plugins/snat-plugin/snat/snat.c
@@ -529,6 +529,57 @@ int snat_add_static_mapping(ip4_address_t l_addr, ip4_address_t e_addr,
return 0;
}
+static int snat_interface_add_del (u32 sw_if_index, u8 is_inside, int is_del)
+{
+ snat_main_t *sm = &snat_main;
+ snat_interface_t *i;
+ u32 ci;
+ ip4_main_t * im = &ip4_main;
+ ip_lookup_main_t * lm = &im->lookup_main;
+ ip_config_main_t * rx_cm = &lm->feature_config_mains[VNET_IP_RX_UNICAST_FEAT];
+ u32 feature_index;
+
+ if (sm->static_mapping_only && !(sm->static_mapping_connection_tracking))
+ feature_index = is_inside ? sm->rx_feature_in2out_fast
+ : sm->rx_feature_out2in_fast;
+ else
+ feature_index = is_inside ? sm->rx_feature_in2out
+ : sm->rx_feature_out2in;
+
+ ci = rx_cm->config_index_by_sw_if_index[sw_if_index];
+ ci = (is_del
+ ? vnet_config_del_feature
+ : vnet_config_add_feature)
+ (sm->vlib_main, &rx_cm->config_main,
+ ci,
+ feature_index,
+ 0 /* config struct */,
+ 0 /* sizeof config struct*/);
+ rx_cm->config_index_by_sw_if_index[sw_if_index] = ci;
+
+ pool_foreach (i, sm->interfaces,
+ ({
+ if (i->sw_if_index == sw_if_index)
+ {
+ if (is_del)
+ pool_put (sm->interfaces, i);
+ else
+ return VNET_API_ERROR_VALUE_EXIST;
+
+ return 0;
+ }
+ }));
+
+ if (is_del)
+ return VNET_API_ERROR_NO_SUCH_ENTRY;
+
+ pool_get (sm->interfaces, i);
+ i->sw_if_index = sw_if_index;
+ i->is_inside = is_inside;
+
+ return 0;
+}
+
static void
vl_api_snat_add_address_range_t_handler
(vl_api_snat_add_address_range_t * mp)
@@ -650,32 +701,11 @@ vl_api_snat_interface_add_del_feature_t_handler
vl_api_snat_interface_add_del_feature_reply_t * rmp;
u8 is_del = mp->is_add == 0;
u32 sw_if_index = ntohl(mp->sw_if_index);
- u32 ci;
- ip4_main_t * im = &ip4_main;
- ip_lookup_main_t * lm = &im->lookup_main;
- ip_config_main_t * rx_cm = &lm->feature_config_mains[VNET_IP_RX_UNICAST_FEAT];
- u32 feature_index;
int rv = 0;
VALIDATE_SW_IF_INDEX(mp);
- if (sm->static_mapping_only && !(sm->static_mapping_connection_tracking))
- feature_index = mp->is_inside ? sm->rx_feature_in2out_fast
- : sm->rx_feature_out2in_fast;
- else
- feature_index = mp->is_inside ? sm->rx_feature_in2out
- : sm->rx_feature_out2in;
-
- ci = rx_cm->config_index_by_sw_if_index[sw_if_index];
- ci = (is_del
- ? vnet_config_del_feature
- : vnet_config_add_feature)
- (sm->vlib_main, &rx_cm->config_main,
- ci,
- feature_index,
- 0 /* config struct */,
- 0 /* sizeof config struct*/);
- rx_cm->config_index_by_sw_if_index[sw_if_index] = ci;
+ rv = snat_interface_add_del (sw_if_index, mp->is_inside, is_del);
BAD_SW_IF_INDEX_LABEL;
@@ -697,6 +727,50 @@ static void *vl_api_snat_interface_add_del_feature_t_print
}
static void
+send_snat_interface_details
+(snat_interface_t * i, unix_shared_memory_queue_t * q, u32 context)
+{
+ vl_api_snat_interface_details_t *rmp;
+ snat_main_t * sm = &snat_main;
+
+ rmp = vl_msg_api_alloc (sizeof (*rmp));
+ memset (rmp, 0, sizeof (*rmp));
+ rmp->_vl_msg_id = ntohs (VL_API_SNAT_INTERFACE_DETAILS+sm->msg_id_base);
+ rmp->sw_if_index = ntohl (i->sw_if_index);
+ rmp->is_inside = i->is_inside;
+ rmp->context = context;
+
+ vl_msg_api_send_shmem (q, (u8 *) & rmp);
+}
+
+static void
+vl_api_snat_interface_dump_t_handler
+(vl_api_snat_interface_dump_t * mp)
+{
+ unix_shared_memory_queue_t *q;
+ snat_main_t * sm = &snat_main;
+ snat_interface_t * i;
+
+ q = vl_api_client_index_to_input_queue (mp->client_index);
+ if (q == 0)
+ return;
+
+ pool_foreach (i, sm->interfaces,
+ ({
+ send_snat_interface_details(i, q, mp->context);
+ }));
+}
+
+static void *vl_api_snat_interface_dump_t_print
+(vl_api_snat_interface_dump_t *mp, void * handle)
+{
+ u8 *s;
+
+ s = format (0, "SCRIPT: snat_interface_dump ");
+
+ FINISH;
+}static void
+
vl_api_snat_add_static_mapping_t_handler
(vl_api_snat_add_static_mapping_t * mp)
{
@@ -866,7 +940,8 @@ _(SNAT_ADD_STATIC_MAPPING, snat_add_static_mapping) \
_(SNAT_CONTROL_PING, snat_control_ping) \
_(SNAT_STATIC_MAPPING_DUMP, snat_static_mapping_dump) \
_(SNAT_SHOW_CONFIG, snat_show_config) \
-_(SNAT_ADDRESS_DUMP, snat_address_dump)
+_(SNAT_ADDRESS_DUMP, snat_address_dump) \
+_(SNAT_INTERFACE_DUMP, snat_interface_dump)
/* Set up the API message handling tables */
static clib_error_t *
@@ -1132,13 +1207,8 @@ snat_feature_command_fn (vlib_main_t * vm,
{
unformat_input_t _line_input, *line_input = &_line_input;
vnet_main_t * vnm = vnet_get_main();
- snat_main_t * sm = &snat_main;
- ip4_main_t * im = &ip4_main;
- ip_lookup_main_t * lm = &im->lookup_main;
- ip_config_main_t * rx_cm = &lm->feature_config_mains[VNET_IP_RX_UNICAST_FEAT];
clib_error_t * error = 0;
- u32 sw_if_index, ci;
- u32 feature_index;
+ u32 sw_if_index;
u32 * inside_sw_if_indices = 0;
u32 * outside_sw_if_indices = 0;
int is_del = 0;
@@ -1168,47 +1238,19 @@ snat_feature_command_fn (vlib_main_t * vm,
if (vec_len (inside_sw_if_indices))
{
- if (sm->static_mapping_only && !(sm->static_mapping_connection_tracking))
- feature_index = sm->rx_feature_in2out_fast;
- else
- feature_index = sm->rx_feature_in2out;
-
for (i = 0; i < vec_len(inside_sw_if_indices); i++)
{
sw_if_index = inside_sw_if_indices[i];
- ci = rx_cm->config_index_by_sw_if_index[sw_if_index];
- ci = (is_del
- ? vnet_config_del_feature
- : vnet_config_add_feature)
- (vm, &rx_cm->config_main,
- ci,
- feature_index,
- 0 /* config struct */,
- 0 /* sizeof config struct*/);
- rx_cm->config_index_by_sw_if_index[sw_if_index] = ci;
+ snat_interface_add_del (sw_if_index, 1, is_del);
}
}
if (vec_len (outside_sw_if_indices))
{
- if (sm->static_mapping_only && !(sm->static_mapping_connection_tracking))
- feature_index = sm->rx_feature_out2in_fast;
- else
- feature_index = sm->rx_feature_out2in;
-
for (i = 0; i < vec_len(outside_sw_if_indices); i++)
{
sw_if_index = outside_sw_if_indices[i];
- ci = rx_cm->config_index_by_sw_if_index[sw_if_index];
- ci = (is_del
- ? vnet_config_del_feature
- : vnet_config_add_feature)
- (vm, &rx_cm->config_main,
- ci,
- feature_index,
- 0 /* config struct */,
- 0 /* sizeof config struct*/);
- rx_cm->config_index_by_sw_if_index[sw_if_index] = ci;
+ snat_interface_add_del (sw_if_index, 0, is_del);
}
}
@@ -1498,6 +1540,8 @@ show_snat_command_fn (vlib_main_t * vm,
snat_main_t * sm = &snat_main;
snat_user_t * u;
snat_static_mapping_t *m;
+ snat_interface_t *i;
+ vnet_main_t *vnm = vnet_get_main();
if (unformat (input, "detail"))
verbose = 1;
@@ -1517,6 +1561,16 @@ show_snat_command_fn (vlib_main_t * vm,
vlib_cli_output (vm, "SNAT mode: dynamic translations enabled");
}
+ if (verbose > 0)
+ {
+ pool_foreach (i, sm->interfaces,
+ ({
+ vlib_cli_output (vm, "%U %s", format_vnet_sw_interface_name, vnm,
+ vnet_get_sw_interface (vnm, i->sw_if_index),
+ i->is_inside ? "in" : "out");
+ }));
+ }
+
if (sm->static_mapping_only && !(sm->static_mapping_connection_tracking))
{
vlib_cli_output (vm, "%d static mappings",
diff --git a/plugins/snat-plugin/snat/snat.h b/plugins/snat-plugin/snat/snat.h
index 531da284..1469f60e 100644
--- a/plugins/snat-plugin/snat/snat.h
+++ b/plugins/snat-plugin/snat/snat.h
@@ -127,6 +127,11 @@ typedef struct {
} snat_static_mapping_t;
typedef struct {
+ u32 sw_if_index;
+ u8 is_inside;
+} snat_interface_t;
+
+typedef struct {
/* Main lookup tables */
clib_bihash_8_8_t out2in;
clib_bihash_8_8_t in2out;
@@ -149,6 +154,9 @@ typedef struct {
/* Static mapping pool */
snat_static_mapping_t * static_mappings;
+ /* Interface pool */
+ snat_interface_t * interfaces;
+
/* Vector of outside addresses */
snat_address_t * addresses;
diff --git a/plugins/snat-plugin/snat/snat_test.c b/plugins/snat-plugin/snat/snat_test.c
index 29577e92..e03c9eec 100644
--- a/plugins/snat-plugin/snat/snat_test.c
+++ b/plugins/snat-plugin/snat/snat_test.c
@@ -90,7 +90,8 @@ _(SNAT_ADD_STATIC_MAPPING_REPLY, snat_add_static_mapping_reply) \
_(SNAT_CONTROL_PING_REPLY, snat_control_ping_reply) \
_(SNAT_STATIC_MAPPING_DETAILS, snat_static_mapping_details) \
_(SNAT_SHOW_CONFIG_REPLY, snat_show_config_reply) \
-_(SNAT_ADDRESS_DETAILS, snat_address_details)
+_(SNAT_ADDRESS_DETAILS, snat_address_details) \
+_(SNAT_INTERFACE_DETAILS, snat_interface_details)
/* M: construct, but don't yet send a message */
#define M(T,t) \
@@ -437,6 +438,41 @@ static int api_snat_address_dump(vat_main_t * vam)
return 0;
}
+static void vl_api_snat_interface_details_t_handler
+ (vl_api_snat_interface_details_t *mp)
+{
+ snat_test_main_t * sm = &snat_test_main;
+ vat_main_t *vam = sm->vat_main;
+
+ fformat (vam->ofp, "sw_if_index %d %s\n", ntohl (mp->sw_if_index),
+ mp->is_inside ? "in" : "out");
+}
+
+static int api_snat_interface_dump(vat_main_t * vam)
+{
+ snat_test_main_t * sm = &snat_test_main;
+ f64 timeout;
+ vl_api_snat_interface_dump_t * mp;
+
+ if (vam->json_output)
+ {
+ clib_warning ("JSON output not supported for snat_address_dump");
+ return -99;
+ }
+
+ M(SNAT_INTERFACE_DUMP, snat_interface_dump);
+ S;
+ /* Use a control ping for synchronization */
+ {
+ vl_api_snat_control_ping_t *mp;
+ M (SNAT_CONTROL_PING, snat_control_ping);
+ S;
+ }
+ W;
+ /* NOTREACHED */
+ return 0;
+}
+
/*
* List of messages that the api test plugin sends,
* and that the data plane plugin processes
@@ -449,7 +485,8 @@ _(snat_add_static_mapping, "local_addr <ip> external_addr <ip> " \
"[local_port <n>] [external_port <n>] [vrf <table-id>] [del]") \
_(snat_static_mapping_dump, "") \
_(snat_show_config, "") \
-_(snat_address_dump, "")
+_(snat_address_dump, "") \
+_(snat_interface_dump, "")
void vat_api_hookup (vat_main_t *vam)
{