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2018-10-23dns, dhcp: on-demand udp port registrationDave Barach2-11/+21
Change-Id: I8bf411adc6c5f4caa349d161174b544d2de3ad1d Signed-off-by: Dave Barach <dave@barachs.net>
2018-10-23c11 safe string handling supportDave Barach1-11/+11
Change-Id: Ied34720ca5a6e6e717eea4e86003e854031b6eab Signed-off-by: Dave Barach <dave@barachs.net>
2018-10-19vppinfra: add atomic macros for __sync builtinsSirshak Das1-1/+1
This is first part of addition of atomic macros with only macros for __sync builtins. - Based on earlier patch by Damjan (https://gerrit.fd.io/r/#/c/10729/) Additionally - clib_atomic_release macro added and used in the absence of any memory barrier. - clib_atomic_bool_cmp_and_swap added Change-Id: Ie4e48c1e184a652018d1d0d87c4be80ddd180a3b Original-patch-by: Damjan Marion <damarion@cisco.com> Signed-off-by: Sirshak Das <sirshak.das@arm.com> Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com> Reviewed-by: Ola Liljedahl <ola.liljedahl@arm.com> Reviewed-by: Steve Capper <steve.capper@arm.com>
2018-02-07Refactor vlib_buffer flagsDamjan Marion1-1/+1
Change-Id: I853386aebfe488ebb10328435b81b6e3403c5dd0 Signed-off-by: Damjan Marion <damarion@cisco.com>
2018-01-23VPPAPIGEN: vppapigen replacement in Python PLY.Ole Troan1-1/+1
This is a version of the VPP API generator in Python PLY. It supports the existing language, and has a plugin architecture for generators. Currently C and JSON are supported. Changes: - vl_api_version to option version = "major.minor.patch" - enum support - Added error checking and reporting - import support (removed the C pre-processor) - services (tying request/reply together) Version: option version = "1.0.0"; Enum: enum colours { RED, BLUE = 50, }; define foo { vl_api_colours_t colours; }; Services: service { rpc foo returns foo_reply; rpc foo_dump returns stream foo_details; rpc want_stats returns want_stats_reply events ip4_counters, ip6_counters; }; Future planned features: - unions - bool, text - array support (including length) - proto3 output plugin - Refactor C/C++ generator as a plugin - Refactor Java generator as a plugin Change-Id: Ifa289966c790e1b1a8e2938a91e69331e3a58bdf Signed-off-by: Ole Troan <ot@cisco.com>
2018-01-11Handle a mix of CNAME, A/AAAA recordsDave Barach1-10/+30
Poster-child: 8.8.8.8 resolving mag.ncep.noaa.gov Change-Id: I600cd0274b9017e9c91817511d3d3366f0bd02b9 Signed-off-by: Dave Barach <dave@barachs.net>
2018-01-10Functional improvements, bug fixesDave Barach4-25/+152
At least when testing against "known good" DNS servers: it turns out that sending 2x requests - one for an A-record and another for a AAAA-record - seems to work better than sending a single DNS_TYPE_ALL request. Fix c-string vs. u8 vector mistakes. Fix server failover. Change-Id: I26554f0a9c1744376f21372506ebec8658e351e2 Signed-off-by: Dave Barach <dave@barachs.net>
2018-01-09api: refactor vlibmemoryFlorin Coras1-2/+2
- 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>
2017-11-27vlib: make vlib_buffer_alloc inline functionDamjan Marion1-1/+1
Currently, every alloc involves callback function call. With this change callback function is called only if there is no empty buffers on the free list. Change-Id: I2238c19ece7ce182c49ba0f2485add52f335f3b6 Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-11-16Deal with double name-pointer chasesDave Barach1-48/+167
Change-Id: I153b07b4348133535b16b6bf55527d19a6b927c6 Signed-off-by: Dave Barach <dave@barachs.net>
2017-11-15Punt DNS request/reply traffic when name resolution disabledDave Barach3-5/+27
Change-Id: Iaad22f25993783be57247aa1f050740f96d2566a Signed-off-by: Dave Barach <dave@barachs.net>
2017-11-05ip4 network request processingDave Barach5-89/+750
Change-Id: I6eb0681cc2595f81ac3bf5ffa3e9b2adfff04a36 Signed-off-by: Dave Barach <dave@barachs.net>
2017-10-20Add reverse DNS (ip to name) resolutionDave Barach5-34/+311
Change-Id: Ic531d820b1846ff7363e5c396ac0b1176e87b401 Signed-off-by: Dave Barach <dave@barachs.net>
2017-10-17VPP-1032: fix coverity warningsDave Barach1-3/+12
Change-Id: Ic3a0c51e5408921051deaf2e50372d9654574b27 Signed-off-by: Dave Barach <dave@barachs.net>
2017-10-16DNS name resolver improvementsDave Barach4-31/+217
- Cache intermediate CNAME records - Bug fixes Change-Id: I06dcb558212fc5e9434281493c872577cf9b83e1 Signed-off-by: Dave Barach <dave@barachs.net>
2017-10-13VPP-1027: DNS name resolverDave Barach6-0/+2940
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>