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Add a hook to src/vlibapi/api_shared.c to fuzz (screw up) binary API
messages, e.g. by xoring random data into them before processing. We
specifically exempt client connection messages, and inband debug CLI
messages. We step over msg_id, client index, client context, and
sw_if_index. Otherwise, "make test" vectors fail too rapidly to learn
anything.
The goal is to reduce the number of crashes caused to zero. We're
fairly close with this patch.
Add vl_msg_api_max_length(void *mp), which returns the maximum
plausible length for a binary API message.
Use it to hardern vl_api_from_api_to_new_vec(...) which takes an
additional argument - message pointer - so it can verify that
astr->length is sane. If it's not sane, return a u8 *vector of the
form "insane astr->length nnnn\0".
Verify array lengths in vl_api_dhcp6_send_client_message_t_handler(...)
and vl_api_dhcp6_pd_send_client_message_t_handler(...).
Add a fairly effective binary API fuzz hook to the unittest plugin,
and modify the "make test" framework.py to pass "api-fuzz { on|off }"
to enable API fuzzing: "make API_FUZZ=on TEST=xxx test-debug" or similar
Type: improvement
Signed-off-by: Dave Barach <dave@barachs.net>
Change-Id: I0157267652a163c01553d5267620f719cc6c3bde
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- Remove vl_api_from_api_string
to prevent use of not nul-terminated strings.
- Rename vl_api_from_api_to_vec -> vl_api_from_api_to_new_vec
to imply a new vector is created. NOT nul terminated.
- Add vl_api_from_api_to_new_c_string. Returns
nul terminated string in a new vector.
- Add vl_api_c_string_to_api_string. Convert nul terminated
string to vl_api_string_t
- Add vl_api_vec_to_api_string. Convert NON nul terminated
vector to vl_api_string_t
Type: fix
Signed-off-by: Jakub Grajciar <jgrajcia@cisco.com>
Change-Id: Iadd59b612c0d960a34ad0dd07a9d17f56435c6ea
Signed-off-by: Jakub Grajciar <jgrajcia@cisco.com>
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In addition to the external vppapitrace tool, VPP itself supports dumping of API trace files.
In two formats, "custom-dump" and "dump". "dump" gives a human friendly list,
and "custom-dump" is meant to give a list of commands that can be fed to VAT.
This patch only deals with "dump".
Prior to this fix, auto-generation was only done for the basic types.
This fix adds support for any type, including lists, and supports pretty-printing
of enums, strings, IP addresses, MAC addresses and so on.
Usage: api trace dump <api-trace-file>
For example
Change-Id: I4e485680e6dcfce7489299ae6cf31d835071ac40
---------- trace 48 -----------
vl_api_sw_interface_set_flags_t:
_vl_msg_id: 75
client_index: 0
context: 10
sw_if_index: 1
flags: IF_STATUS_API_FLAG_ADMIN_UP
---------- trace 49 -----------
vl_api_sw_interface_add_del_address_t:
_vl_msg_id: 88
client_index: 0
context: 11
sw_if_index: 1
is_add: 1
del_all: 0
prefix: 172.16.1.1/24
---------- trace 51 -----------
vl_api_cli_inband_t:
_vl_msg_id: 819
client_index: 0
context: 13
cmd: packet-generator capture pg0 pcap /tmp/vpp-unittest-TestMAP-YhcmDX/pg0_out.pcap disable
---------- trace 58 -----------
vl_api_ip_neighbor_add_del_t:
_vl_msg_id: 199
client_index: 0
context: 20
is_add: 1
neighbor:
sw_if_index: 2
flags: IP_API_NEIGHBOR_FLAG_NONE
mac_address: 0202.0000.ff02
ip_address: fd01:2::2
Signed-off-by: Ole Troan <ot@cisco.com>
Change-Id: I5556d06008de2762e7c2d35a8b0963ae670b3db1
Type: fix
Signed-off-by: Ole Troan <ot@cisco.com>
Signed-off-by: Ole Troan <ot@cisco.com>
Signed-off-by: Ole Troan <ot@cisco.com>
Signed-off-by: Ole Troan <ot@cisco.com>
Signed-off-by: Ole Troan <ot@cisco.com>
Signed-off-by: Ole Troan <ot@cisco.com>
Signed-off-by: Ole Troan <ot@cisco.com>
Signed-off-by: Ole Troan <ot@cisco.com>
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Use of consistent API types for interface.api
Type: fix
Change-Id: I88206d7d0907cffd564031f73c9a996df2e5e21a
Signed-off-by: Jakub Grajciar <jgrajcia@cisco.com>
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using inlines exposes the users to the internal data types used by VPP, namely vec.h. This file does not compile with a C++ compiler.
Type: feature
Change-Id: I1544fdd9eae998309f865df61df78571bdb96903
Signed-off-by: Neale Ranns <nranns@cisco.com>
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Previous use of strndup() required user to remember to call free().
Now return a vector pointing directly to the API message string.
Of course user must remember to copy the string out if lifetime
is longer than API message lifetime.
Change-Id: Ib5e2b3d52d258e1a42ea9ea9a9e04abbe360e2bf
Type: fix
Signed-off-by: Ole Troan <ot@cisco.com>
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This reverts commit e63325e3ca03c847963863446345e6c80a2c0cfd.
Allow time for CSIT to accommodate.
Change-Id: I59435e4ab5e05e36a2796c3bf44889b5d4823cc2
Signed-off-by: ot@cisco.com
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Use of consistent API types for interface.api
Change-Id: Ieb54cebb4ac96b432a3f0b41596718aa2f34885b
Signed-off-by: Jakub Grajciar <jgrajcia@cisco.com>
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Fix misc VAPI/VOM generation and test cases.
Change-Id: I1abf9ecdb6f8a2129f11e0a9ed1c0fe04cdf5c47
Signed-off-by: Ole Troan <ot@cisco.com>
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The string type does not include the \0 in strings.
Change-Id: I869f438b84880df40a018e43b4510194d84ce0fe
Signed-off-by: Ole Troan <ot@cisco.com>
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String is not sent nul terminated across API.
The hardest two problems in computer science is cache invalidation
naming and off by one errors.
Change-Id: I36f1952ca955cb2d9dfb4c8120ec48c50ba17991
Signed-off-by: Ole Troan <ot@cisco.com>
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The new string type is modelled after string in proto3.
It is always variable length.
Change-Id: I64884067e28a80072c8dac31b7c7c82d6e306051
Signed-off-by: Ole Troan <ot@cisco.com>
Signed-off-by: Michal Cmarada <mcmarada@cisco.com>
Signed-off-by: Ole Troan <ot@cisco.com>
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