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authorOle Troan <ot@cisco.com>2019-08-23 22:55:18 +0200
committerAndrew Yourtchenko <ayourtch@gmail.com>2019-09-03 20:04:13 +0000
commite5ff5a36dd126ee57dca4e0b03da2f7704e0a4f5 (patch)
tree2108baa60e8a697624288fe2c3050be29697bc88 /src
parentb6fde4a8bae474c6b73d08d223028f42e396d452 (diff)
api: enforce vla is last and fixed string type
Enforce that variable length fields are the last element of API messages. Add a 'fixed' version of string type, since dealing with multiple variable length strings turned out too painful for the C language bindings. The string type is now: { string name[64]; // NUL terminated C-string. Essentially decays to u8 name[64] string name[]; // Variable length string with embedded len field (vl_api_string_t) }; The latter notation could be made available to other types as well. e.g. { vl_api_address_t addresses[]; } instead of { u32 n_addr; vl_api_address_t addresses[n_addr]; }; Type: fix Change-Id: I18fa17ef47227633752ab50453e8d20a652a9f9b Signed-off-by: Ole Troan <ot@cisco.com>
Diffstat (limited to 'src')
-rw-r--r--src/plugins/http_static/http_static.api6
-rw-r--r--src/plugins/http_static/http_static.c12
-rw-r--r--src/plugins/map/map.api6
-rw-r--r--src/plugins/map/map_api.c11
-rw-r--r--src/plugins/nat/nat.api16
-rw-r--r--src/plugins/nat/nat_api.c147
-rw-r--r--src/plugins/nat/test/test_nat.py2
-rwxr-xr-xsrc/tools/vppapigen/vppapigen.py74
-rw-r--r--src/tools/vppapigen/vppapigen_c.py11
-rw-r--r--src/vat/api_format.c54
-rw-r--r--src/vnet/interface.api10
-rw-r--r--src/vnet/interface_api.c30
-rw-r--r--src/vnet/ip/punt.api4
-rw-r--r--src/vnet/session/session.api2
-rwxr-xr-xsrc/vpp-api/python/vpp_papi/tests/test_vpp_serializer.py40
-rw-r--r--src/vpp-api/python/vpp_papi/vpp_serializer.py46
-rwxr-xr-xsrc/vpp-api/vapi/vapi_c_gen.py12
-rw-r--r--src/vpp-api/vapi/vapi_json_parser.py5
-rw-r--r--src/vpp/api/api.c28
-rw-r--r--src/vpp/api/vpe.api18
20 files changed, 266 insertions, 268 deletions
diff --git a/src/plugins/http_static/http_static.api b/src/plugins/http_static/http_static.api
index dc3dcac71ba..4d6d8bfe9b5 100644
--- a/src/plugins/http_static/http_static.api
+++ b/src/plugins/http_static/http_static.api
@@ -2,7 +2,7 @@
/** \file
This file defines static http server control-plane API messages
*/
-option version = "2.0.0";
+option version = "2.1.0";
/** \brief Configure and enable the static http server
@param client_index - opaque cookie to identify the sender
@@ -29,7 +29,7 @@ autoreply define http_static_enable {
u32 private_segment_size;
/* Root of the html path */
- string www_root[limit=256];
+ string www_root[256];
/* The bind URI */
- string uri[limit=256];
+ string uri[256];
};
diff --git a/src/plugins/http_static/http_static.c b/src/plugins/http_static/http_static.c
index 2ad4acfb0c1..6000cf62219 100644
--- a/src/plugins/http_static/http_static.c
+++ b/src/plugins/http_static/http_static.c
@@ -66,22 +66,16 @@ static void vl_api_http_static_enable_t_handler
vl_api_http_static_enable_reply_t *rmp;
http_static_main_t *hmp = &http_static_main;
int rv;
- u8 *www_root = 0;
- u8 *uri = 0;
- char *p = (char *) &mp->www_root;
- www_root = vl_api_from_api_to_vec ((vl_api_string_t *) p);
- p += vl_api_string_len ((vl_api_string_t *) p) + sizeof (vl_api_string_t);
- uri = vl_api_from_api_to_vec ((vl_api_string_t *) p);
+ mp->uri[ARRAY_LEN (mp->uri) - 1] = 0;
+ mp->www_root[ARRAY_LEN (mp->www_root) - 1] = 0;
rv = http_static_server_enable_api
(ntohl (mp->fifo_size),
ntohl (mp->cache_size_limit),
ntohl (mp->prealloc_fifos),
- ntohl (mp->private_segment_size), www_root, uri);
+ ntohl (mp->private_segment_size), mp->www_root, mp->uri);
- vec_free (www_root);
- vec_free (uri);
REPLY_MACRO (VL_API_HTTP_STATIC_ENABLE_REPLY);
}
diff --git a/src/plugins/map/map.api b/src/plugins/map/map.api
index b15b38a3d19..b1f78124c2c 100644
--- a/src/plugins/map/map.api
+++ b/src/plugins/map/map.api
@@ -13,7 +13,7 @@
* limitations under the License.
*/
-option version = "4.0.0";
+option version = "4.1.0";
import "vnet/ip/ip_types.api";
@@ -40,7 +40,7 @@ define map_add_domain
u8 psid_offset;
u8 psid_length;
u16 mtu;
- string tag[limit=64];
+ string tag[64];
};
/** \brief Reply for MAP domain add
@@ -121,7 +121,7 @@ define map_domain_details
u8 psid_length;
u8 flags;
u16 mtu;
- string tag[limit=64];
+ string tag[64];
};
define map_rule_dump
diff --git a/src/plugins/map/map_api.c b/src/plugins/map/map_api.c
index 1e50ba1b714..394ec243dbf 100644
--- a/src/plugins/map/map_api.c
+++ b/src/plugins/map/map_api.c
@@ -53,8 +53,8 @@ vl_api_map_add_domain_t_handler (vl_api_map_add_domain_t * mp)
int rv = 0;
u32 index;
u8 flags = 0;
- u8 *vtag = 0;
- vtag = vl_api_from_api_to_vec (&mp->tag);
+
+ u8 *tag = format (0, "%s", mp->tag);
rv =
map_create_domain ((ip4_address_t *) & mp->ip4_prefix.address,
mp->ip4_prefix.len,
@@ -62,9 +62,8 @@ vl_api_map_add_domain_t_handler (vl_api_map_add_domain_t * mp)
mp->ip6_prefix.len,
(ip6_address_t *) & mp->ip6_src.address,
mp->ip6_src.len, mp->ea_bits_len, mp->psid_offset,
- mp->psid_length, &index, ntohs (mp->mtu), flags, vtag);
- vec_free (vtag);
-
+ mp->psid_length, &index, ntohs (mp->mtu), flags, tag);
+ vec_free (tag);
/* *INDENT-OFF* */
REPLY_MACRO2(VL_API_MAP_ADD_DOMAIN_REPLY,
({
@@ -140,7 +139,7 @@ vl_api_map_domain_dump_t_handler (vl_api_map_domain_dump_t * mp)
rmp->flags = d->flags;
rmp->mtu = htons(d->mtu);
- vl_api_vec_to_api_string (de->tag, &rmp->tag );
+ strncpy ((char *) rmp->tag, (char *) de->tag, ARRAY_LEN(rmp->tag)-1);
vl_api_send_msg (reg, (u8 *) rmp);
}));
diff --git a/src/plugins/nat/nat.api b/src/plugins/nat/nat.api
index bd880a6498d..8cf26d4900d 100644
--- a/src/plugins/nat/nat.api
+++ b/src/plugins/nat/nat.api
@@ -13,7 +13,7 @@
* limitations under the License.
*/
-option version = "5.1.0";
+option version = "5.2.0";
import "vnet/ip/ip_types.api";
import "vnet/interface_types.api";
@@ -171,7 +171,7 @@ define nat_worker_details {
u32 context;
u32 worker_index;
u32 lcore_id;
- string name;
+ string name[64];
};
/** \brief Enable/disable NAT IPFIX logging
@@ -678,7 +678,7 @@ autoreply define nat44_add_del_static_mapping {
u16 external_port;
vl_api_interface_index_t external_sw_if_index;
u32 vrf_id;
- string tag;
+ string tag[64];
};
/** \brief Dump NAT44 static mappings
@@ -717,7 +717,7 @@ define nat44_static_mapping_details {
u16 external_port;
vl_api_interface_index_t external_sw_if_index;
u32 vrf_id;
- string tag;
+ string tag[64];
};
/** \brief Add/delete NAT44 identity mapping
@@ -743,7 +743,7 @@ autoreply define nat44_add_del_identity_mapping {
u16 port;
vl_api_interface_index_t sw_if_index;
u32 vrf_id;
- string tag;
+ string tag[64];
};
/** \brief Dump NAT44 identity mappings
@@ -773,7 +773,7 @@ define nat44_identity_mapping_details {
u16 port;
vl_api_interface_index_t sw_if_index;
u32 vrf_id;
- string tag;
+ string tag[64];
};
/** \brief Add/delete NAT44 pool address from specific interfce
@@ -927,9 +927,9 @@ autoreply manual_endian define nat44_add_del_lb_static_mapping {
u16 external_port;
u8 protocol;
u32 affinity;
+ string tag[64];
u32 local_num;
vl_api_nat44_lb_addr_port_t locals[local_num];
- string tag;
};
/** \brief Add/delete NAT44 load-balancing static mapping rule backend
@@ -983,9 +983,9 @@ manual_endian define nat44_lb_static_mapping_details {
u8 protocol;
vl_api_nat_config_flags_t flags;
u32 affinity;
+ string tag[64];
u32 local_num;
vl_api_nat44_lb_addr_port_t locals[local_num];
- string tag;
};
/** \brief Delete NAT44 session
diff --git a/src/plugins/nat/nat_api.c b/src/plugins/nat/nat_api.c
index ff46ae9421a..b83ea0b49f8 100644
--- a/src/plugins/nat/nat_api.c
+++ b/src/plugins/nat/nat_api.c
@@ -200,20 +200,14 @@ send_nat_worker_details (u32 worker_index, vl_api_registration_t * reg,
snat_main_t *sm = &snat_main;
vlib_worker_thread_t *w =
vlib_worker_threads + worker_index + sm->first_worker_index;
- u32 len = vec_len (w->name);
- if (len)
- --len;
-
- rmp = vl_msg_api_alloc (sizeof (*rmp) + len);
- clib_memset (rmp, 0, sizeof (*rmp) + len);
+ rmp = vl_msg_api_alloc (sizeof (*rmp));
+ clib_memset (rmp, 0, sizeof (*rmp));
rmp->_vl_msg_id = ntohs (VL_API_NAT_WORKER_DETAILS + sm->msg_id_base);
rmp->context = context;
rmp->worker_index = htonl (worker_index);
rmp->lcore_id = htonl (w->cpu_id);
-
- if (len)
- vl_api_to_api_string (len, (char *) w->name, &rmp->name);
+ strncpy ((char *) rmp->name, (char *) w->name, ARRAY_LEN (rmp->name) - 1);
vl_api_send_msg (reg, (u8 *) rmp);
}
@@ -1208,7 +1202,6 @@ static void
int rv = 0;
snat_protocol_t proto;
u8 *tag = 0;
- u32 len = 0;
if (sm->deterministic)
{
@@ -1216,14 +1209,6 @@ static void
goto send_reply;
}
- len = vl_api_string_len (&mp->tag);
-
- if (len > 64)
- {
- rv = VNET_API_ERROR_INVALID_VALUE;
- goto send_reply;
- }
-
memcpy (&local_addr.as_u8, mp->local_ip_address, 4);
memcpy (&external_addr.as_u8, mp->external_ip_address, 4);
@@ -1241,10 +1226,8 @@ static void
twice_nat = TWICE_NAT;
else if (mp->flags & NAT_API_IS_SELF_TWICE_NAT)
twice_nat = TWICE_NAT_SELF;
-
- tag = vec_new (u8, len);
-
- memcpy (tag, mp->tag.buf, len);
+ mp->tag[sizeof (mp->tag) - 1] = 0;
+ tag = format (0, "%s", mp->tag);
vec_terminate_c_string (tag);
rv = snat_add_static_mapping (local_addr, external_addr, local_port,
@@ -1296,19 +1279,8 @@ send_nat44_static_mapping_details (snat_static_mapping_t * m,
snat_main_t *sm = &snat_main;
u32 len = sizeof (*rmp);
- if (m->tag)
- {
- len += vec_len (m->tag);
- rmp = vl_msg_api_alloc (len);
- clib_memset (rmp, 0, len);
- vl_api_to_api_string (vec_len (m->tag), (char *) m->tag, &rmp->tag);
- }
- else
- {
- rmp = vl_msg_api_alloc (len);
- clib_memset (rmp, 0, len);
- }
-
+ rmp = vl_msg_api_alloc (len);
+ clib_memset (rmp, 0, len);
rmp->_vl_msg_id =
ntohs (VL_API_NAT44_STATIC_MAPPING_DETAILS + sm->msg_id_base);
@@ -1337,6 +1309,9 @@ send_nat44_static_mapping_details (snat_static_mapping_t * m,
rmp->local_port = htons (m->local_port);
}
+ if (m->tag)
+ strncpy ((char *) rmp->tag, (char *) m->tag, vec_len (m->tag));
+
vl_api_send_msg (reg, (u8 *) rmp);
}
@@ -1347,21 +1322,9 @@ send_nat44_static_map_resolve_details (snat_static_map_resolve_t * m,
{
vl_api_nat44_static_mapping_details_t *rmp;
snat_main_t *sm = &snat_main;
- u32 len = sizeof (*rmp);
-
- if (m->tag)
- {
- len += vec_len (m->tag);
- rmp = vl_msg_api_alloc (len);
- clib_memset (rmp, 0, len);
- vl_api_to_api_string (vec_len (m->tag), (char *) m->tag, &rmp->tag);
- }
- else
- {
- rmp = vl_msg_api_alloc (len);
- clib_memset (rmp, 0, len);
- }
+ rmp = vl_msg_api_alloc (sizeof (*rmp));
+ clib_memset (rmp, 0, sizeof (*rmp));
rmp->_vl_msg_id =
ntohs (VL_API_NAT44_STATIC_MAPPING_DETAILS + sm->msg_id_base);
clib_memcpy (rmp->local_ip_address, &(m->l_addr), 4);
@@ -1382,6 +1345,8 @@ send_nat44_static_map_resolve_details (snat_static_map_resolve_t * m,
rmp->external_port = htons (m->e_port);
rmp->local_port = htons (m->l_port);
}
+ if (m->tag)
+ strncpy ((char *) rmp->tag, (char *) m->tag, vec_len (m->tag));
vl_api_send_msg (reg, (u8 *) rmp);
}
@@ -1442,7 +1407,6 @@ static void
int rv = 0;
snat_protocol_t proto = ~0;
u8 *tag = 0;
- u32 len = 0;
if (sm->deterministic)
{
@@ -1461,11 +1425,8 @@ static void
addr.as_u32 = 0;
else
memcpy (&addr.as_u8, mp->ip_address, 4);
-
- len = vl_api_string_len (&mp->tag);
-
- tag = vec_new (u8, len);
- memcpy (tag, mp->tag.buf, len);
+ mp->tag[sizeof (mp->tag) - 1] = 0;
+ tag = format (0, "%s", mp->tag);
vec_terminate_c_string (tag);
rv =
@@ -1507,21 +1468,9 @@ send_nat44_identity_mapping_details (snat_static_mapping_t * m, int index,
vl_api_nat44_identity_mapping_details_t *rmp;
snat_main_t *sm = &snat_main;
nat44_lb_addr_port_t *local = pool_elt_at_index (m->locals, index);
- u32 len = sizeof (*rmp);
-
- if (m->tag)
- {
- len += vec_len (m->tag);
- rmp = vl_msg_api_alloc (len);
- clib_memset (rmp, 0, len);
- vl_api_to_api_string (vec_len (m->tag), (char *) m->tag, &rmp->tag);
- }
- else
- {
- rmp = vl_msg_api_alloc (len);
- clib_memset (rmp, 0, len);
- }
+ rmp = vl_msg_api_alloc (sizeof (*rmp));
+ clib_memset (rmp, 0, sizeof (*rmp));
rmp->_vl_msg_id =
ntohs (VL_API_NAT44_IDENTITY_MAPPING_DETAILS + sm->msg_id_base);
@@ -1534,6 +1483,8 @@ send_nat44_identity_mapping_details (snat_static_mapping_t * m, int index,
rmp->vrf_id = htonl (local->vrf_id);
rmp->protocol = snat_proto_to_ip_proto (m->proto);
rmp->context = context;
+ if (m->tag)
+ strncpy ((char *) rmp->tag, (char *) m->tag, vec_len (m->tag));
vl_api_send_msg (reg, (u8 *) rmp);
}
@@ -1545,21 +1496,9 @@ send_nat44_identity_map_resolve_details (snat_static_map_resolve_t * m,
{
vl_api_nat44_identity_mapping_details_t *rmp;
snat_main_t *sm = &snat_main;
- u32 len = sizeof (*rmp);
-
- if (m->tag)
- {
- len += vec_len (m->tag);
- rmp = vl_msg_api_alloc (len);
- clib_memset (rmp, 0, len);
- vl_api_to_api_string (vec_len (m->tag), (char *) m->tag, &rmp->tag);
- }
- else
- {
- rmp = vl_msg_api_alloc (len);
- clib_memset (rmp, 0, len);
- }
+ rmp = vl_msg_api_alloc (sizeof (*rmp));
+ clib_memset (rmp, 0, sizeof (*rmp));
rmp->_vl_msg_id =
ntohs (VL_API_NAT44_IDENTITY_MAPPING_DETAILS + sm->msg_id_base);
@@ -1571,6 +1510,8 @@ send_nat44_identity_map_resolve_details (snat_static_map_resolve_t * m,
rmp->vrf_id = htonl (m->vrf_id);
rmp->protocol = snat_proto_to_ip_proto (m->proto);
rmp->context = context;
+ if (m->tag)
+ strncpy ((char *) rmp->tag, (char *) m->tag, vec_len (m->tag));
vl_api_send_msg (reg, (u8 *) rmp);
}
@@ -1936,9 +1877,7 @@ static void
nat44_lb_addr_port_t *locals = 0;
ip4_address_t e_addr;
snat_protocol_t proto;
- vl_api_string_t *sp;
u8 *tag = 0;
- u32 len = 0;
if (!sm->endpoint_dependent)
{
@@ -1956,15 +1895,8 @@ static void
twice_nat = TWICE_NAT;
else if (mp->flags & NAT_API_IS_SELF_TWICE_NAT)
twice_nat = TWICE_NAT_SELF;
-
- sp = (void *) &mp->locals +
- sizeof (vl_api_nat44_lb_addr_port_t) *
- clib_net_to_host_u32 (mp->local_num);
-
- len = vl_api_string_len (sp);
-
- tag = vec_new (u8, len);
- memcpy (tag, sp->buf, len);
+ mp->tag[sizeof (mp->tag) - 1] = 0;
+ tag = format (0, "%s", mp->tag);
vec_terminate_c_string (tag);
rv =
@@ -2051,28 +1983,13 @@ send_nat44_lb_static_mapping_details (snat_static_mapping_t * m,
snat_main_t *sm = &snat_main;
nat44_lb_addr_port_t *ap;
vl_api_nat44_lb_addr_port_t *locals;
- vl_api_string_t *sp;
u32 local_num = 0;
- u32 len = sizeof (*rmp);
-
- if (m->tag)
- {
- len += pool_elts (m->locals) *
- sizeof (nat44_lb_addr_port_t) + vec_len (m->tag);
- rmp = vl_msg_api_alloc (len);
- clib_memset (rmp, 0, len);
-
- sp = (void *) &rmp->locals +
- sizeof (vl_api_nat44_lb_addr_port_t) * pool_elts (m->locals);
- vl_api_to_api_string (vec_len (m->tag), (char *) m->tag, sp);
- }
- else
- {
- len += pool_elts (m->locals) * sizeof (nat44_lb_addr_port_t);
- rmp = vl_msg_api_alloc (len);
- clib_memset (rmp, 0, len);
- }
+ rmp =
+ vl_msg_api_alloc (sizeof (*rmp) +
+ (pool_elts (m->locals) *
+ sizeof (nat44_lb_addr_port_t)));
+ clib_memset (rmp, 0, sizeof (*rmp));
rmp->_vl_msg_id =
ntohs (VL_API_NAT44_LB_STATIC_MAPPING_DETAILS + sm->msg_id_base);
@@ -2087,6 +2004,8 @@ send_nat44_lb_static_mapping_details (snat_static_mapping_t * m,
rmp->flags |= NAT_API_IS_SELF_TWICE_NAT;
if (is_out2in_only_static_mapping (m))
rmp->flags |= NAT_API_IS_OUT2IN_ONLY;
+ if (m->tag)
+ strncpy ((char *) rmp->tag, (char *) m->tag, vec_len (m->tag));
locals = (vl_api_nat44_lb_addr_port_t *) rmp->locals;
/* *INDENT-OFF* */
diff --git a/src/plugins/nat/test/test_nat.py b/src/plugins/nat/test/test_nat.py
index a64b5709c72..4d48ee494c6 100644
--- a/src/plugins/nat/test/test_nat.py
+++ b/src/plugins/nat/test/test_nat.py
@@ -1894,7 +1894,7 @@ class TestNAT44(MethodHolder):
is_add=1)
sm = self.vapi.nat44_static_mapping_dump()
self.assertEqual(len(sm), 1)
- self.assertEqual((sm[0].tag).split(b'\0', 1)[0], b'')
+ self.assertEqual(sm[0].tag, '')
self.assertEqual(sm[0].protocol, 0)
self.assertEqual(sm[0].local_port, 0)
self.assertEqual(sm[0].external_port, 0)
diff --git a/src/tools/vppapigen/vppapigen.py b/src/tools/vppapigen/vppapigen.py
index c01fa40c169..d0391cd7a37 100755
--- a/src/tools/vppapigen/vppapigen.py
+++ b/src/tools/vppapigen/vppapigen.py
@@ -152,6 +152,25 @@ class Typedef():
self.manual_endian = True
global_type_add(name, self)
+ self.vla = False
+
+ for i, b in enumerate(block):
+ if isinstance(b, Array):
+ if b.length == 0:
+ self.vla = True
+ if i + 1 < len(block):
+ raise ValueError(
+ 'VLA field "{}" must be the last '
+ 'field in message "{}"'
+ .format(b.fieldname, name))
+ elif b.fieldtype == 'string':
+ self.vla = True
+ if i + 1 < len(block):
+ raise ValueError(
+ 'VLA field "{}" must be the last '
+ 'field in message "{}"'
+ .format(b.fieldname, name))
+
def __repr__(self):
return self.name + str(self.flags) + str(self.block)
@@ -159,12 +178,13 @@ class Typedef():
class Using():
def __init__(self, name, alias):
self.name = name
+ self.vla = False
if isinstance(alias, Array):
- a = { 'type': alias.fieldtype, # noqa: E201
- 'length': alias.length } # noqa: E202
+ a = {'type': alias.fieldtype,
+ 'length': alias.length}
else:
- a = { 'type': alias.fieldtype } # noqa: E201,E202
+ a = {'type': alias.fieldtype}
self.alias = a
self.crc = str(alias).encode()
global_type_add(name, self)
@@ -208,12 +228,29 @@ class Define():
elif f == 'autoreply':
self.autoreply = True
- for b in block:
+ for i, b in enumerate(block):
if isinstance(b, Option):
if b[1] == 'singular' and b[2] == 'true':
self.singular = True
block.remove(b)
+ if isinstance(b, Array) and b.vla and i + 1 < len(block):
+ raise ValueError(
+ 'VLA field "{}" must be the last field in message "{}"'
+ .format(b.fieldname, name))
+ elif b.fieldtype.startswith('vl_api_'):
+ if (global_types[b.fieldtype].vla and i + 1 < len(block)):
+ raise ValueError(
+ 'VLA field "{}" must be the last '
+ 'field in message "{}"'
+ .format(b.fieldname, name))
+ elif b.fieldtype == 'string' and b.length == 0:
+ if i + 1 < len(block):
+ raise ValueError(
+ 'VLA field "{}" must be the last '
+ 'field in message "{}"'
+ .format(b.fieldname, name))
+
def __repr__(self):
return self.name + str(self.flags) + str(self.block)
@@ -222,6 +259,7 @@ class Enum():
def __init__(self, name, block, enumtype='u32'):
self.name = name
self.enumtype = enumtype
+ self.vla = False
count = 0
for i, b in enumerate(block):
@@ -272,16 +310,19 @@ class Option():
class Array():
- def __init__(self, fieldtype, name, length):
+ def __init__(self, fieldtype, name, length, modern_vla=False):
self.type = 'Array'
self.fieldtype = fieldtype
self.fieldname = name
+ self.modern_vla = modern_vla
if type(length) is str:
self.lengthfield = length
self.length = 0
+ self.vla = True
else:
self.length = length
self.lengthfield = None
+ self.vla = False
def __repr__(self):
return str([self.fieldtype, self.fieldname, self.length,
@@ -292,6 +333,11 @@ class Field():
def __init__(self, fieldtype, name, limit=None):
self.type = 'Field'
self.fieldtype = fieldtype
+
+ if self.fieldtype == 'string':
+ raise ValueError("The string type {!r} is an "
+ "array type ".format(name))
+
if name in keyword.kwlist:
raise ValueError("Fieldname {!r} is a python keyword and is not "
"accessible via the python API. ".format(name))
@@ -521,13 +567,18 @@ class VPPAPIParser(object):
if len(p) == 2:
p[0] = p[1]
else:
- p[0] = { **p[1], **p[2] }
+ p[0] = {**p[1], **p[2]}
def p_field_option(self, p):
- '''field_option : ID '=' assignee ','
+ '''field_option : ID
+ | ID '=' assignee ','
| ID '=' assignee
+
'''
- p[0] = { p[1]: p[3] }
+ if len(p) == 2:
+ p[0] = {p[1]: None}
+ else:
+ p[0] = {p[1]: p[3]}
def p_declaration(self, p):
'''declaration : type_specifier ID ';'
@@ -540,9 +591,14 @@ class VPPAPIParser(object):
self._parse_error('ERROR')
self.fields.append(p[2])
+ def p_declaration_array_vla(self, p):
+ '''declaration : type_specifier ID '[' ']' ';' '''
+ p[0] = Array(p[1], p[2], 0, modern_vla=True)
+
def p_declaration_array(self, p):
'''declaration : type_specifier ID '[' NUM ']' ';'
| type_specifier ID '[' ID ']' ';' '''
+
if len(p) != 7:
return self._parse_error(
'array: %s' % p.value,
@@ -780,7 +836,7 @@ def foldup_blocks(block, crc):
try:
crc = crc_block_combine(t.block, crc)
return foldup_blocks(t.block, crc)
- except:
+ except AttributeError:
pass
return crc
diff --git a/src/tools/vppapigen/vppapigen_c.py b/src/tools/vppapigen/vppapigen_c.py
index 19efc99dae0..c1bc11d4a12 100644
--- a/src/tools/vppapigen/vppapigen_c.py
+++ b/src/tools/vppapigen/vppapigen_c.py
@@ -153,8 +153,15 @@ def typedefs(objs, aliases, filename):
if b.lengthfield:
output += " %s %s[0];\n" % (api2c(b.fieldtype), b.fieldname)
else:
- output += " %s %s[%s];\n" % (api2c(b.fieldtype), b.fieldname,
- b.length)
+ # Fixed length strings decay to nul terminated u8
+ if b.fieldtype == 'string':
+ if b.modern_vla:
+ output += ' {} {};\n'.format(api2c(b.fieldtype), b.fieldname)
+ else:
+ output += ' u8 {}[{}];\n'.format(b.fieldname, b.length)
+ else:
+ output += " %s %s[%s];\n" % (api2c(b.fieldtype), b.fieldname,
+ b.length)
else:
raise ValueError("Error in processing array type %s" % b)
diff --git a/src/vat/api_format.c b/src/vat/api_format.c
index 7efdadc103b..46039371a45 100644
--- a/src/vat/api_format.c
+++ b/src/vat/api_format.c
@@ -974,8 +974,7 @@ static void vl_api_sw_interface_details_t_handler
(vl_api_sw_interface_details_t * mp)
{
vat_main_t *vam = &vat_main;
- u8 *s = format (0, "%s%c",
- vl_api_from_api_string (&mp->interface_name), 0);
+ u8 *s = format (0, "%s%c", mp->interface_name, 0);
hash_set_mem (vam->sw_if_index_by_interface_name, s,
ntohl (mp->sw_if_index));
@@ -1027,7 +1026,7 @@ static void vl_api_sw_interface_details_t_handler_json
vat_json_object_add_bytes (node, "l2_address", mp->l2_address,
sizeof (mp->l2_address));
vat_json_object_add_string_copy (node, "interface_name",
- mp->interface_name.buf);
+ mp->interface_name);
vat_json_object_add_uint (node, "flags", mp->flags);
vat_json_object_add_uint (node, "link_duplex", mp->link_duplex);
vat_json_object_add_uint (node, "link_speed", mp->link_speed);
@@ -1324,30 +1323,10 @@ static void vl_api_show_version_reply_t_handler
if (retval >= 0)
{
- u8 *s = 0;
- char *p = (char *) &mp->program;
-
- s = vl_api_from_api_to_vec ((vl_api_string_t *) p);
- errmsg (" program: %v\n", s);
- vec_free (s);
-
- p +=
- vl_api_string_len ((vl_api_string_t *) p) + sizeof (vl_api_string_t);
- s = vl_api_from_api_to_vec ((vl_api_string_t *) p);
- errmsg (" version: %v\n", s);
- vec_free (s);
-
- p +=
- vl_api_string_len ((vl_api_string_t *) p) + sizeof (vl_api_string_t);
- s = vl_api_from_api_to_vec ((vl_api_string_t *) p);
- errmsg (" build date: %v\n", s);
- vec_free (s);
-
- p +=
- vl_api_string_len ((vl_api_string_t *) p) + sizeof (vl_api_string_t);
- s = vl_api_from_api_to_vec ((vl_api_string_t *) p);
- errmsg ("build directory: %v\n", s);
- vec_free (s);
+ errmsg (" program: %s", mp->program);
+ errmsg (" version: %s", mp->version);
+ errmsg (" build date: %s", mp->build_date);
+ errmsg ("build directory: %s", mp->build_directory);
}
vam->retval = retval;
vam->result_ready = 1;
@@ -1361,22 +1340,11 @@ static void vl_api_show_version_reply_t_handler_json
vat_json_init_object (&node);
vat_json_object_add_int (&node, "retval", ntohl (mp->retval));
- char *p = (char *) &mp->program;
- vat_json_object_add_string_copy (&node, "program",
- vl_api_from_api_string ((vl_api_string_t *)
- p));
- p += vl_api_string_len ((vl_api_string_t *) p) + sizeof (u32);
- vat_json_object_add_string_copy (&node, "version",
- vl_api_from_api_string ((vl_api_string_t *)
- p));
- p += vl_api_string_len ((vl_api_string_t *) p) + sizeof (u32);
- vat_json_object_add_string_copy (&node, "build_date",
- vl_api_from_api_string ((vl_api_string_t *)
- p));
- p += vl_api_string_len ((vl_api_string_t *) p) + sizeof (u32);
+ vat_json_object_add_string_copy (&node, "program", mp->program);
+ vat_json_object_add_string_copy (&node, "version", mp->version);
+ vat_json_object_add_string_copy (&node, "build_date", mp->build_date);
vat_json_object_add_string_copy (&node, "build_directory",
- vl_api_from_api_string ((vl_api_string_t *)
- p));
+ mp->build_directory);
vat_json_print (vam->ofp, &node);
vat_json_free (&node);
@@ -20367,7 +20335,7 @@ api_sw_interface_tag_add_del (vat_main_t * vam)
mp->sw_if_index = ntohl (sw_if_index);
mp->is_add = enable;
if (enable)
- vl_api_to_api_string (strlen ((char *) tag), (char *) tag, &mp->tag);
+ strncpy ((char *) mp->tag, (char *) tag, ARRAY_LEN (mp->tag) - 1);
vec_free (tag);
S (mp);
diff --git a/src/vnet/interface.api b/src/vnet/interface.api
index 8a2d0797b5c..dff954438af 100644
--- a/src/vnet/interface.api
+++ b/src/vnet/interface.api
@@ -14,7 +14,7 @@
* limitations under the License.
*/
-option version = "3.0.0";
+option version = "3.1.0";
import "vnet/interface_types.api";
import "vnet/ethernet/ethernet_types.api";
@@ -185,8 +185,8 @@ define sw_interface_details
u32 i_sid;
/* Interface name */
- string interface_name;
- string tag;
+ string interface_name[64];
+ string tag[64];
};
/** \brief Request all or filtered subset of sw_interface_details
@@ -204,7 +204,7 @@ define sw_interface_dump
u32 context;
vl_api_interface_index_t sw_if_index;
bool name_filter_valid;
- string name_filter;
+ string name_filter[];
};
/** \brief Set or delete one or all ip addresses on a specified interface
@@ -307,7 +307,7 @@ autoreply define sw_interface_tag_add_del
u32 context;
bool is_add;
vl_api_interface_index_t sw_if_index;
- string tag;
+ string tag[64];
};
/** \brief Set an interface's MAC address
diff --git a/src/vnet/interface_api.c b/src/vnet/interface_api.c
index 9a695ed5bdd..3448c6037b7 100644
--- a/src/vnet/interface_api.c
+++ b/src/vnet/interface_api.c
@@ -200,14 +200,8 @@ send_sw_interface_details (vpe_api_main_t * am,
vnet_hw_interface_t *hi =
vnet_get_sup_hw_interface (am->vnet_main, swif->sw_if_index);
- uint32_t if_name_len = strlen ((char *) interface_name);
- u8 *tag = vnet_get_sw_interface_tag (vnet_get_main (), swif->sw_if_index);
- uint32_t tag_len = 0;
- if (tag != NULL)
- tag_len = strlen ((char *) tag);
- vl_api_sw_interface_details_t *mp =
- vl_msg_api_alloc (sizeof (*mp) + if_name_len + tag_len);
- clib_memset (mp, 0, sizeof (*mp) + if_name_len + tag_len);
+ vl_api_sw_interface_details_t *mp = vl_msg_api_alloc (sizeof (*mp));
+ clib_memset (mp, 0, sizeof (*mp));
mp->_vl_msg_id = ntohs (VL_API_SW_INTERFACE_DETAILS);
mp->sw_if_index = ntohl (swif->sw_if_index);
mp->sup_sw_if_index = ntohl (swif->sup_sw_if_index);
@@ -245,6 +239,9 @@ send_sw_interface_details (vpe_api_main_t * am,
mp->context = context;
+ strncpy ((char *) mp->interface_name,
+ (char *) interface_name, ARRAY_LEN (mp->interface_name) - 1);
+
/* Send the L2 address for ethernet physical intfcs */
if (swif->sup_sw_if_index == swif->sw_if_index
&& hi->hw_class_index == ethernet_hw_interface_class.index)
@@ -306,12 +303,9 @@ send_sw_interface_details (vpe_api_main_t * am,
mp->i_sid = i_sid;
}
- char *p = (char *) &mp->interface_name;
- p +=
- vl_api_to_api_string (if_name_len, (char *) interface_name,
- (vl_api_string_t *) p);
- if (tag != NULL)
- vl_api_to_api_string (tag_len, (char *) tag, (vl_api_string_t *) p);
+ u8 *tag = vnet_get_sw_interface_tag (vnet_get_main (), swif->sw_if_index);
+ if (tag)
+ strncpy ((char *) mp->tag, (char *) tag, ARRAY_LEN (mp->tag) - 1);
vl_api_send_msg (rp, (u8 *) mp);
}
@@ -356,7 +350,8 @@ vl_api_sw_interface_dump_t_handler (vl_api_sw_interface_dump_t * mp)
if (mp->name_filter_valid)
{
filter =
- format (0, "%s%c", vl_api_from_api_string (&mp->name_filter), 0);
+ format (0, ".*%s", vl_api_string_len (&mp->name_filter),
+ vl_api_from_api_string (&mp->name_filter), 0);
}
char *strcasestr (char *, char *); /* lnx hdr file botch */
@@ -884,13 +879,14 @@ static void vl_api_sw_interface_tag_add_del_t_handler
if (mp->is_add)
{
- if (vl_api_from_api_string (&mp->tag)[0] == 0)
+ if (mp->tag[0] == 0)
{
rv = VNET_API_ERROR_INVALID_VALUE;
goto out;
}
- tag = format (0, "%s%c", vl_api_from_api_string (&mp->tag), 0);
+ mp->tag[ARRAY_LEN (mp->tag) - 1] = 0;
+ tag = format (0, "%s%c", mp->tag, 0);
vnet_set_sw_interface_tag (vnm, tag, sw_if_index);
}
else
diff --git a/src/vnet/ip/punt.api b/src/vnet/ip/punt.api
index 72efc7a9557..9890385fe5a 100644
--- a/src/vnet/ip/punt.api
+++ b/src/vnet/ip/punt.api
@@ -13,7 +13,7 @@
* limitations under the License.
*/
-option version = "2.1.0";
+option version = "2.2.0";
import "vnet/ip/ip_types.api";
/** \brief The types of packets to be punted
@@ -134,7 +134,7 @@ autoreply define punt_socket_deregister {
typedef punt_reason
{
u32 id;
- string name;
+ string name[];
};
/** \brief Dump all or one of the excpetion punt reasons
diff --git a/src/vnet/session/session.api b/src/vnet/session/session.api
index 52e050d3978..6f208ff5b0e 100644
--- a/src/vnet/session/session.api
+++ b/src/vnet/session/session.api
@@ -320,9 +320,9 @@ autoreply define connect_sock {
u8 ip[16];
u16 port;
u8 proto;
+ u64 parent_handle;
u8 hostname_len;
u8 hostname[hostname_len];
- u64 parent_handle;
};
/** \brief ask app to add a new cut-through registration
diff --git a/src/vpp-api/python/vpp_papi/tests/test_vpp_serializer.py b/src/vpp-api/python/vpp_papi/tests/test_vpp_serializer.py
index bddaa9e00c2..6ca8e6c4ff3 100755
--- a/src/vpp-api/python/vpp_papi/tests/test_vpp_serializer.py
+++ b/src/vpp-api/python/vpp_papi/tests/test_vpp_serializer.py
@@ -11,11 +11,47 @@ from ipaddress import *
class TestLimits(unittest.TestCase):
+ def test_string(self):
+ fixed_string = VPPType('fixed_string',
+ [['string', 'name', 16]])
+
+ b = fixed_string.pack({'name': 'foobar'})
+ self.assertEqual(len(b), 16)
+
+ # Ensure string is nul terminated
+ self.assertEqual(b.decode('ascii')[6], '\x00')
+
+ nt, size = fixed_string.unpack(b)
+ self.assertEqual(size, 16)
+ self.assertEqual(nt.name, 'foobar')
+
+ # Empty string
+ b = fixed_string.pack({'name': ''})
+ self.assertEqual(len(b), 16)
+ nt, size = fixed_string.unpack(b)
+ self.assertEqual(size, 16)
+ self.assertEqual(nt.name, '')
+
+ # String too long
+ with self.assertRaises(VPPSerializerValueError):
+ b = fixed_string.pack({'name': 'foobarfoobar1234'})
+
+ variable_string = VPPType('variable_string',
+ [['string', 'name', 0]])
+ b = variable_string.pack({'name': 'foobar'})
+ self.assertEqual(len(b), 4 + len('foobar'))
+
+ nt, size = variable_string.unpack(b)
+ self.assertEqual(size, 4 + len('foobar'))
+ self.assertEqual(nt.name, 'foobar')
+ self.assertEqual(len(nt.name), len('foobar'))
+
+
def test_limit(self):
limited_type = VPPType('limited_type_t',
- [['string', 'name', {'limit': 16}]])
+ [['string', 'name', 0, {'limit': 16}]])
unlimited_type = VPPType('limited_type_t',
- [['string', 'name']])
+ [['string', 'name', 0]])
b = limited_type.pack({'name': 'foobar'})
self.assertEqual(len(b), 10)
diff --git a/src/vpp-api/python/vpp_papi/vpp_serializer.py b/src/vpp-api/python/vpp_papi/vpp_serializer.py
index 9ce0287592f..ec6a06bb3d5 100644
--- a/src/vpp-api/python/vpp_papi/vpp_serializer.py
+++ b/src/vpp-api/python/vpp_papi/vpp_serializer.py
@@ -105,27 +105,42 @@ class BaseTypes(object):
class String(object):
- def __init__(self, options):
- self.name = 'string'
+ def __init__(self, name, num, options):
+ self.name = name
+ self.num = num
self.size = 1
self.length_field_packer = BaseTypes('u32')
- self.limit = options['limit'] if 'limit' in options else None
+ self.limit = options['limit'] if 'limit' in options else num
+ self.fixed = True if num else False
+ if self.fixed and not self.limit:
+ raise VPPSerializerValueError(
+ "Invalid argument length for: {}, {} maximum {}".
+ format(list, len(list), self.limit))
def pack(self, list, kwargs=None):
if not list:
+ if self.fixed:
+ return b"\x00" * self.limit
return self.length_field_packer.pack(0) + b""
- if self.limit and len(list) > self.limit:
+ if self.limit and len(list) > self.limit - 1:
raise VPPSerializerValueError(
"Invalid argument length for: {}, {} maximum {}".
- format(list, len(list), self.limit))
-
- return self.length_field_packer.pack(len(list)) + list.encode('utf8')
+ format(list, len(list), self.limit - 1))
+ if self.fixed:
+ return list.encode('ascii').ljust(self.limit, b'\x00')
+ return self.length_field_packer.pack(len(list)) + list.encode('ascii')
def unpack(self, data, offset=0, result=None, ntc=False):
+ if self.fixed:
+ p = BaseTypes('u8', self.num)
+ s = p.unpack(data, offset)
+ s2 = s[0].split(b'\0', 1)[0]
+ return (s2.decode('ascii'), self.num)
+
length, length_field_size = self.length_field_packer.unpack(data,
offset)
if length == 0:
- return b'', 0
+ return '', 0
p = BaseTypes('u8', length)
x, size = p.unpack(data, offset + length_field_size)
x2 = x.split(b'\0', 1)[0]
@@ -181,10 +196,6 @@ class FixedList_u8(object):
'Invalid array length for "{}" got {}'
' expected {}'
.format(self.name, len(data[offset:]), self.num))
- if self.field_type == 'string':
- s = self.packer.unpack(data, offset)
- s2 = s[0].split(b'\0', 1)[0]
- return (s2.decode('utf-8'), self.num)
return self.packer.unpack(data, offset)
@@ -473,12 +484,19 @@ class VPPType(object):
if fieldlen == 3: # list
list_elements = f[2]
if list_elements == 0:
- p = VLAList_legacy(f_name, f_type)
+ if f_type == 'string':
+ p = String(f_name, 0, self.options)
+ else:
+ p = VLAList_legacy(f_name, f_type)
self.packers.append(p)
- elif f_type == 'u8' or f_type == 'string':
+ elif f_type == 'u8':
p = FixedList_u8(f_name, f_type, list_elements)
self.packers.append(p)
size += p.size
+ elif f_type == 'string':
+ p = String(f_name, list_elements, self.options)
+ self.packers.append(p)
+ size += p.size
else:
p = FixedList(f_name, f_type, list_elements)
self.packers.append(p)
diff --git a/src/vpp-api/vapi/vapi_c_gen.py b/src/vpp-api/vapi/vapi_c_gen.py
index 381dcba7f42..b9b9aa750a8 100755
--- a/src/vpp-api/vapi/vapi_c_gen.py
+++ b/src/vpp-api/vapi/vapi_c_gen.py
@@ -13,10 +13,16 @@ class CField(Field):
return "vapi_type_%s" % self.name
def get_c_def(self):
- if self.len is not None:
- return "%s %s[%d];" % (self.type.get_c_name(), self.name, self.len)
+ if self.type.get_c_name() == 'vl_api_string_t':
+ if self.len:
+ return "u8 %s[%d];" % (self.name, self.len)
+ else:
+ return "vl_api_string_t %s;" % (self.name)
else:
- return "%s %s;" % (self.type.get_c_name(), self.name)
+ if self.len is not None:
+ return "%s %s[%d];" % (self.type.get_c_name(), self.name, self.len)
+ else:
+ return "%s %s;" % (self.type.get_c_name(), self.name)
def get_swap_to_be_code(self, struct, var):
if self.len is not None:
diff --git a/src/vpp-api/vapi/vapi_json_parser.py b/src/vpp-api/vapi/vapi_json_parser.py
index a9d2c8186bc..d7669365ce8 100644
--- a/src/vpp-api/vapi/vapi_json_parser.py
+++ b/src/vpp-api/vapi/vapi_json_parser.py
@@ -177,12 +177,15 @@ class Message(object):
p = field_class(field_name=field[1],
field_type=field_type)
elif l == 3:
- if field[2] == 0:
+ if field[2] == 0 and field[0] != 'string':
raise ParseError(
"While parsing message `%s': variable length "
"array `%s' doesn't have reference to member "
"containing the actual length" % (
name, field[1]))
+ if field[0] == 'string' and field[2] > 0:
+ field_type = json_parser.lookup_type_like_id('u8')
+
p = field_class(
field_name=field[1],
field_type=field_type,
diff --git a/src/vpp/api/api.c b/src/vpp/api/api.c
index 801cf186904..989d867c06b 100644
--- a/src/vpp/api/api.c
+++ b/src/vpp/api/api.c
@@ -254,21 +254,16 @@ vl_api_show_version_t_handler (vl_api_show_version_t * mp)
char *vpe_api_get_version (void);
char *vpe_api_get_build_date (void);
- u32 program_len = strnlen_s ("vpe", 32);
- u32 version_len = strnlen_s (vpe_api_get_version (), 32);
- u32 build_date_len = strnlen_s (vpe_api_get_build_date (), 32);
- u32 build_directory_len = strnlen_s (vpe_api_get_build_directory (), 256);
-
- u32 n = program_len + version_len + build_date_len + build_directory_len;
-
/* *INDENT-OFF* */
- REPLY_MACRO3(VL_API_SHOW_VERSION_REPLY, n,
+ REPLY_MACRO2(VL_API_SHOW_VERSION_REPLY,
({
- char *p = (char *)&rmp->program;
- p += vl_api_to_api_string(program_len, "vpe", (vl_api_string_t *)p);
- p += vl_api_to_api_string(version_len, vpe_api_get_version(), (vl_api_string_t *)p);
- p += vl_api_to_api_string(build_date_len, vpe_api_get_build_date(), (vl_api_string_t *)p);
- vl_api_to_api_string(build_directory_len, vpe_api_get_build_directory(), (vl_api_string_t *)p);
+ strncpy ((char *) rmp->program, "vpe", ARRAY_LEN(rmp->program)-1);
+ strncpy ((char *) rmp->build_directory, vpe_api_get_build_directory(),
+ ARRAY_LEN(rmp->build_directory)-1);
+ strncpy ((char *) rmp->version, vpe_api_get_version(),
+ ARRAY_LEN(rmp->version)-1);
+ strncpy ((char *) rmp->build_date, vpe_api_get_build_date(),
+ ARRAY_LEN(rmp->build_date)-1);
}));
/* *INDENT-ON* */
}
@@ -495,10 +490,11 @@ show_log_details (vl_api_registration_t * reg, u32 context,
rmp->context = context;
rmp->timestamp = clib_host_to_net_f64 (timestamp);
rmp->level = htonl (*level);
- char *p = (char *) &rmp->msg_class;
- p += vl_api_vec_to_api_string (msg_class, (vl_api_string_t *) p);
- p += vl_api_vec_to_api_string (message, (vl_api_string_t *) p);
+ strncpy ((char *) rmp->msg_class, (char *) msg_class,
+ ARRAY_LEN (rmp->msg_class) - 1);
+ strncpy ((char *) rmp->message, (char *) message,
+ ARRAY_LEN (rmp->message) - 1);
vl_api_send_msg (reg, (u8 *) rmp);
}
diff --git a/src/vpp/api/vpe.api b/src/vpp/api/vpe.api
index f03507ded4f..deab6a22593 100644
--- a/src/vpp/api/vpe.api
+++ b/src/vpp/api/vpe.api
@@ -19,7 +19,7 @@
called through a shared memory interface.
*/
-option version = "1.5.0";
+option version = "1.6.0";
import "vpp/api/vpe_types.api";
@@ -92,7 +92,7 @@ define cli_inband
{
u32 client_index;
u32 context;
- string cmd;
+ string cmd[];
};
/** \brief vpe parser cli string response
@@ -110,7 +110,7 @@ define cli_inband_reply
{
u32 context;
i32 retval;
- string reply;
+ string reply[];
};
/** \brief Get node index using name request
@@ -184,10 +184,10 @@ define show_version_reply
{
u32 context;
i32 retval;
- string program [limit = 32];
- string version [limit = 32];
- string build_date [limit = 32];
- string build_directory [limit = 256];
+ string program[32];
+ string version[32];
+ string build_date[32];
+ string build_directory[256];
};
@@ -295,8 +295,8 @@ define log_details {
u32 context;
vl_api_timestamp_t timestamp;
vl_api_log_level_t level;
- string msg_class [limit=32];
- string message [limit=256];
+ string msg_class[32];
+ string message[256];
};
/** \brief Show the current system timestamp.