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2021-05-10api: fix crash in vl_msg_api_freewanghanlin1-1/+15
VPP crash when ASSERT in clib_mem_free. Type: fix Signed-off-by: wanghanlin <wanghanlin@corp.netease.com> Change-Id: Id06d833caab3385446528d62a6ed3bde38d57db0
2021-02-07vppinfra: do not crash if format string is nullAndrew Yourtchenko1-4/+4
Sending 128 bytes of zeroes via API shared memory interface (or putting any other message ID that results in null message name - e.g. 2,4,5) results in this crash: Program received signal SIGSEGV, Segmentation fault. va_format (s=0x7fffb5643a60 "memclnt_create", fmt=0x0, va=0x7fffa739ccf0) at /home/ubuntu/vpp/src/vppinfra/format.c:395 395 c = *f; (gdb) bt 0 va_format (s=0x7fffb5643a60 "memclnt_create", fmt=0x0, va=0x7fffa739ccf0) at /home/ubuntu/vpp/src/vppinfra/format.c:395 1 0x00007ffff50e7259 in elog_string (em=0x7ffff5f2fbc8 <vlib_global_main+968>, fmt=0x0) at /home/ubuntu/vpp/src/vppinfra/elog.c:592 2 0x00007ffff7bc4cec in vl_msg_api_handler_with_vm_node (am=0x7ffff7dd1c90 <api_global_main>, vlib_rp=0x130023000, the_msg=0x130086d50, vm=0x7ffff5f2f800 <vlib_global_main>, node=0x7fffb5edd4c0, is_private=0 '\000') at /home/ubuntu/vpp/src/vlibapi/api_shared.c:585 3 0x00007ffff7ba6c86 in void_mem_api_handle_msg_i (am=0x7ffff7dd1c90 <api_global_main>, vlib_rp=0x130023000, vm=<optimized out>, node=<optimized out>, is_private=0 '\000') at /home/ubuntu/vpp/src/vlibmemory/memory_api.c:696 4 vl_mem_api_handle_msg_main (vm=0x7ffff5f2f800 <vlib_global_main>, node=0x7fffb5edd4c0) at /home/ubuntu/vpp/src/vlibmemory/memory_api.c:707 5 0x00007ffff7bb573e in vl_api_clnt_process (vm=0x7ffff5f2f800 <vlib_global_main>, node=0x7fffb5edd4c0, f=<optimized out>) at /home/ubuntu/vpp/src/vlibmemory/vlib_api.c:338 6 0x00007ffff5cb3bb7 in vlib_process_bootstrap (_a=<optimized out>) at /home/ubuntu/vpp/src/vlib/main.c:1477 7 0x00007ffff514088c in clib_calljmp () from /home/ubuntu/vpp/build-root/install-vpp-native/vpp/lib/libvppinfra.so.21.01 8 0x00007fffa95b0550 in ?? () 9 0x00007ffff5ca93e2 in vlib_process_startup (vm=0x7ffff5f2f800 <vlib_global_main>, p=0x7fffb5edd4c0, f=0x0) at /home/ubuntu/vpp/src/vlib/main.c:1502 10 dispatch_process (vm=0x7ffff5f2f800 <vlib_global_main>, p=0x7fffb5edd4c0, f=0x0, last_time_stamp=<optimized out>) at /home/ubuntu/vpp/src/vlib/main.c:1558 11 0x0000000000000000 in ?? () (gdb) I am not sure if this place is better to fix it or the 4-5 places in vl_msg_api_handler_with_vm_node that it gets called from, but submitting this one since it is the shortest Type: fix Change-Id: I659d2bea7405d8763181336f35ef468682f64cf2 Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com>
2020-07-16misc: add callback hooks and refactor pmcTom Seidenberg1-0/+14
Callbacks for monitoring and performance measurement: - Add new callback list type, with context - Add callbacks for API, CLI, and barrier sync - Modify node dispatch callback to pass plugin-specific context - Modify perfmon plugin to keep PMC samples local to the plugin - Include process nodes in dispatch callback - Pass dispatch function return value to callback Type: refactor Signed-off-by: Tom Seidenberg <tseidenb@cisco.com> Change-Id: I28b06c58490611e08d76ff5b01b2347ba2109b22
2020-06-15api: check id is valid for bounce checkingBenoît Ganne1-1/+1
If the id is invalid we cannot check whether we must free the message or not, free it anyway. Type: fix Change-Id: Ie4426f601390d1e5e14c739f670e8c1e6e3aaf1e Signed-off-by: Benoît Ganne <bganne@cisco.com>
2020-05-27api: make vpp api handlers endian independentOle Troan1-1/+19
Add a new boolean to signal that the API infrastructure should performan any required endian conversions for the API handler. am->is_autoendian[mm->msg_id_base + VL_API_MAP_ADD_DOMAIN] = 1; Similarly add new REPLY_ macros that perform endian conversion. These changes do not change the on-the-wire encoding of the API messages, and therefore the API CRC is not changed. Type: feature Signed-off-by: Ole Troan <ot@cisco.com> Change-Id: I7588f8ccb38b2d1e8d85ea17be99bac43f756267 Signed-off-by: Ole Troan <ot@cisco.com>
2020-05-04misc: binary api fuzz test fixesDave Barach1-1/+26
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
2020-02-26api: improve api string safetyJakub Grajciar1-10/+24
- 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>
2019-12-11api: Use vl_msg_push/pop_heapNathan Skrzypczak1-4/+16
Type: refactor Change-Id: I0eb46676fc22ce6825b2d879498df344b5a855e8 Signed-off-by: Nathan Skrzypczak <nathan.skrzypczak@gmail.com>
2019-12-10api: multiple connections per processDave Barach1-22/+32
Type: feature Signed-off-by: Dave Barach <dave@barachs.net> Change-Id: I2272521d6e69edcd385ef684af6dd4eea5eaa953
2019-12-06api: avoid swapping vlib_rp before barrier syncFlorin Coras1-2/+16
Type: fix Change-Id: I9868d13e827c6f5aa5535a38f629efb62ff12dbc Signed-off-by: Nathan Skrzypczak <nathan.skrzypczak@gmail.com> Signed-off-by: Florin Coras <fcoras@cisco.com>
2019-09-16api: autogenerate api trace print/endianOle Troan1-2/+10
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>
2019-08-08api: vppapitrace JSON/API trace converterOle Troan1-2/+34
usage: vppapitrace.py [-h] [--debug] [--apidir APIDIR] {convert,replay} ... optional arguments: -h, --help show this help message and exit --debug enable debug mode --apidir APIDIR Location of JSON API definitions subcommands: valid subcommands {convert,replay} additional help convert Convert API trace to JSON or Python and back replay Replay messages to running VPP instance To convert an API trace file to JSON: vppapitrace convert /tmp/api.trace trace.json To convert an (edited) JSON file back to API trace for replay: vppapitrace convert trace.json api-edited.trace To generate a Python file that can be replayed: vppapitrace convert /tmp/api.trace trace.py vppapitrace convert trace.json trace.py Replay it to a running VPP instance: vppapitrace replay --socket /tmp/api.trace In VPP that file can be replayed with: vpp# api trace replay api-edited.trace This patch also modifies the API binary trace format, to include the message id to message name table. Change-Id: Ie6441efb53c1c93c9f778f6ae9c1758bccc8dd87 Type: refactor Signed-off-by: Ole Troan <ot@cisco.com>
2019-07-19api: fix coverity warningDave Barach1-3/+8
Type: fix Ticket: VPP-1649 Change-Id: Ia159d0f67d33719d05fa2dbd82f9c8c9b5d8f2a9 Signed-off-by: Dave Barach <dave@barachs.net>
2019-07-16api: enable binary API event logging in vatDave Barach1-28/+81
Cleaned up a few instances of side-bet elog_string hash table usage. Elog_string handles that problem itself. Add cli commands to vat to initialize, enable/disable, and save an event log. Event logging at the same time in both vpp and vat yields a pair of event logs which can be merged by the "test_elog" tool. Type: refactor Change-Id: I8d6a72206f2309c967ea1630077fba31aef47f93 Signed-off-by: Dave Barach <dave@barachs.net>
2019-07-02api: fix coverity warningsDave Barach1-7/+7
New coverity toolset, new set of squawks to fix Ticket: VPP-1649 Type: fix Change-Id: I2a7e4c42b101c6c79c01b150b2523ce3d5d62354 Signed-off-by: Dave Barach <dave@barachs.net>
2019-06-26api: Remove the inlines file and replace with library functionsNeale Ranns1-0/+40
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>
2019-06-14api: add mp-safe/barrier-sync indication to elogsDave Barach1-6/+17
Costs nothing, and leaves nothing to the imagination. Type: fix Change-Id: I7c9f9fb9325475c268eca062da7bbbf014438cfc Signed-off-by: Dave Barach <dave@barachs.net>
2019-06-12infra: fix minor memory leak in "api trace..."Dave Barach1-1/+3
Build api trace message print fns into the built-in copy of api_format.c Optimize memory allocator behavior when the api trace wraps. Type: Fix Change-Id: If799d8784a459f981fc9ee3a3ca03d3f63b2bcd0 Signed-off-by: Dave Barach <dave@barachs.net>
2019-03-25add api trace printezkexma1-1/+16
/vpp/src/vlibapi/api_shared.c after "set api-trace debug on",api trace will be print ontime when clients send msg to vpp. Change-Id: Ib2e504afb9e674c5cdfa6dc5c522c7af0396d687 Signed-off-by: ezkexma <maqi.z.ke@ericsson.com>
2018-11-14Remove c-11 memcpy checks from perf-critical codeDave Barach1-1/+1
Change-Id: Id4f37f5d4a03160572954a416efa1ef9b3d79ad1 Signed-off-by: Dave Barach <dave@barachs.net>
2018-10-23c11 safe string handling supportDave Barach1-3/+3
Change-Id: Ied34720ca5a6e6e717eea4e86003e854031b6eab Signed-off-by: Dave Barach <dave@barachs.net>
2018-10-01API / CLI event-log tracingDave Barach1-45/+38
Add an "elog trace [api][cli][barrier]" debug CLI command. Removed the barrier elog test command. Remove unused reliable multicast code. Change-Id: Ib3ecde901b7c49fe92b313d0087cd7e776adcdce Signed-off-by: Dave Barach <dave@barachs.net>
2018-06-05VPP API: Memory traceOle Troan1-0/+17
if you plan to put a hash into shared memory, the key sum and key equal functions MUST be set to constants such as KEY_FUNC_STRING, KEY_FUNC_MEM, etc. -lvppinfra is PIC, which means that the process which set up the hash won't have the same idea where the key sum and key compare functions live in other processes. Change-Id: Ib3b5963a0d2fb467b91e1f16274df66ac74009e9 Signed-off-by: Ole Troan <ot@cisco.com> Signed-off-by: Dave Barach <dave@barachs.net> Signed-off-by: Ole Troan <ot@cisco.com>
2018-01-22svm: queue sub: Add conditional timed waitMohsin Kazmi1-1/+1
On reviece side svm queue only permits blocking and non-blocking calls. This patch adds timed wait blocking functionality which returns either on signal/event or on given time out. It also preserves the original behavior, so it will not hurt client applications which are using svm queue. Change-Id: Ic10632170330a80afb8bc781d4ccddfe4da2c69a Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2018-01-09api: refactor vlibmemoryFlorin Coras1-2/+17
- separate client/server code for both memory and socket apis - separate memory api code from generic vlib api code - move unix_shared_memory_fifo to svm and rename to svm_fifo_t - overall declutter Change-Id: I90cdd98ff74d0787d58825b914b0f1eafcfa4dc2 Signed-off-by: Florin Coras <fcoras@cisco.com>
2017-10-13VPP-1027: DNS name resolverDave Barach1-1/+16
This patch is a plausible first-cut, suitable for initial testing by vcl (host stack client library). Main features; - recursive name resolution - multiple ip4/ip6 name servers - cache size limit enforcement - currently limited to 65K - ttl / aging - static mapping support - show / clear / debug CLI commands Binary APIs provided for the following: - add/delete name servers - enable/disable the name cache - resolve a name To Do list: - Respond to ip4/ip6 client DNS requests (vs. binary API requests) - Perf / scale tuning - map pending transaction ids to pool indices, so the cache can (greatly) exceed 65K entries - Security improvements - Use unpredictable dns transaction IDs, related to previous item - Make sure that response-packet src ip addresses match the server - Add binary APIs - deliver raw response data to clients - control recursive name resolution - Documentation Change-Id: I48c373d5c05d7108ccd814d4055caf8c75ca10b7 Signed-off-by: Dave Barach <dave@barachs.net>
2017-10-10API versioning: Fix coverity errors from strncpy()Ole Troan1-1/+1
Change-Id: Ife87f9b00f918ff1bb8c91c6f13ebe53a3555a12 Signed-off-by: Ole Troan <ot@cisco.com>
2017-10-09vppapigen: support per-file (major,minor,patch) version stampsDave Barach1-0/+9
Add one of these statements to foo.api: vl_api_version 1.2.3 to generate a version tuple stanza in foo.api.h: /****** Version tuple *****/ vl_api_version_tuple(foo, 1, 2, 3) Change-Id: Ic514439e4677999daa8463a94f948f76b132ff15 Signed-off-by: Dave Barach <dave@barachs.net> Signed-off-by: Ole Troan <ot@cisco.com>
2017-09-27VPP-990 remove registered handler if control ping failsv18.01-rc0Matej Perina1-0/+12
Change-Id: I5ca5763f0dc0a73cc6f014b855426b7ac180f356 Signed-off-by: Matej Perina <mperina@cisco.com>
2017-09-20Improve API message handler re-registration checkDave Barach1-3/+5
Change-Id: Iedcea2fb45052852666b91a21eed011f5593313d Signed-off-by: Dave Barach <dave@barachs.net>
2017-09-11Recombine diags and minimum barrier open time changes (VPP-968)Colin Tregenza Dancer1-2/+8
Support logging to both syslog and elog Also include DaveB is_mp_safe fix, which had been lost Change-Id: If82f7969e2f43c63c3fed5b1a0c7434c90c1f380 Signed-off-by: Colin Tregenza Dancer <ctd@metaswitch.com>
2017-05-17Add vl_msg_api_get_message_length[_inline]Dave Barach1-0/+6
Change-Id: I6d86cf7966d51ec7a507bbb59c586adbfb45be05 Signed-off-by: Dave Barach <dave@barachs.net>
2017-05-03A sprinkling of const in vlibmemory/api.h and friendsNeale Ranns1-2/+2
Change-Id: I953ebb37eeec7de0c4a6b00258c3c67a83cbc020 Signed-off-by: Neale Ranns <nranns@cisco.com>
2017-03-09vlib_mains == 0 special cases be goneDave Barach1-509/+21
Clean up spurious binary API client link dependency on libvlib.so, which managed to hide behind vlib_mains == 0 checks reached by VLIB_xxx_FUNCTION macros. Change-Id: I5df1f8ab07dca1944250e643ccf06e60a8462325 Signed-off-by: Dave Barach <dave@barachs.net>
2017-03-03Improve api trace replay consistency checkingDave Barach1-0/+6
Change-Id: I2c4b9646d53e4c008ccbe6d09c6a683c776c1f60 Signed-off-by: Dave Barach <dave@barachs.net>
2017-03-02Clean up binary api message handler registration issuesDave Barach1-0/+4
Removed a fair number of "BUG" message handlers, due to conflicts with actual message handlers in api_format.c. Vpp itself had no business receiving certain messages, up to the point where we started building in relevant code from vpp_api_test. Eliminated all but one duplicate registration complaint. That one needs attention from the vxlan team since the duplicated handlers have diverged. Change-Id: Iafce5429d2f906270643b4ea5f0130e20beb4d1d Signed-off-by: Dave Barach <dave@barachs.net>
2017-02-14Fix typo in API warning message.Jon Loeliger1-1/+1
Change-Id: I51488620a7eeaf7a0edba71437d2b49ae3cf0bf5 Signed-off-by: Jon Loeliger <jdl@netgate.com>
2017-01-05Fix uninitialized stack local, VPP-581Dave Barach1-0/+2
Sporadically messes up the client message allocation ring, by setting c->message_bounce[msg_id] non-zero. A day-1 bug, made blatantly obvious by the python API language binding for no particular reason. Manually cherry-picked from stable/1701 due to the recent tree reorganization. Change-Id: Ifa03c5487436cbe50a6204db48fd9ce4938e32bb Signed-off-by: Dave Barach <dave@barachs.net>
2016-12-28Reorganize source tree to use single autotools instanceDamjan Marion1-0/+1375
Change-Id: I7b51f88292e057c6443b12224486f2d0c9f8ae23 Signed-off-by: Damjan Marion <damarion@cisco.com>