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vlib_buffer_copy(...) returns NULL if the system is temporarily out of
buffers.
This is NOT correct. Please don't be this person:
c0 = vlib_buffer_copy (vm, p0);
ci0 = vlib_get_buffer_index (vm, c0);
Type: fix
Signed-off-by: Dave Barach <dave@barachs.net>
(cherry picked from commit c25ef58965871ea5d2b40904df9506803f69e47e)
Change-Id: I6cd4f289c4fadc3f36c3203b53546e9a788ef99b
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Type: fix
Change-Id: Ifcbfeecd6ca1215ec473eec4cce736ab4eacde80
Signed-off-by: Neale Ranns <nranns@cisco.com>
(cherry picked from commit d751746af9ca1130202d19bddd96a5f6af2ecc5c)
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Type: fix
Change-Id: I1af0e4a9bc23a3b6b6d3a74df093801ab6cae1f8
Signed-off-by: Lijian Zhang <Lijian.Zhang@arm.com>
(cherry picked from commit 33af8c1ed89f15cf0601ee891e9603bef16f2c93)
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Type: refactor
Change-Id: I6f0af1c3078edce1c1b29a8b99c4a232d7084d33
Signed-off-by: Damjan Marion <damarion@cisco.com>
(cherry picked from commit 864d857c6c223be8ec11c588d65e8c5c2e211814)
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Since vlib_buffer_copy() and vlib_buffer_clone() both preserve
VLIB_BUFFER_IS_TRACED bit in flags field, it should also copy
trace_handle which would add minimal overhead. Thus, callers of
these functions do not have to call vlib_buffer_copy_trace_flags()
to copy trace_handle.
Type: refactor
Ticket: VPP-1745
Signed-off-by: John Lo <loj@cisco.com>
Change-Id: Iff6a3f81660dd62b36a2966033eb380305340310
(cherry picked from commit 6631780422787166550b9871c46a94c160416324)
Signed-off-by: John Lo <loj@cisco.com>
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Type: feature
- Define the ip_dscp_t and use in the IP headers
- Add DSCP setting to the DHCP client for use with packet TX
Change-Id: If220dde0017ea78793747d65f53e11daf23a28fa
Signed-off-by: Neale Ranns <nranns@cisco.com>
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Type: feature
this means DHCP packets are subject to the IP features configured on the interface
- the unicast packets already were sent throught the adj
- added UT for DHCP client sending a unicast renewal
Change-Id: Id50db0b71822f44bf7cb639a524195cdc9873526
Signed-off-by: Neale Ranns <nranns@cisco.com>
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Enhance the route add/del APIs to take a set of paths rather than just one.
Most unicast routing protocols calcualte all the available paths in one
run of the algorithm so updating all the paths at once is beneficial for the client.
two knobs control the behaviour:
is_multipath - if set the the set of paths passed will be added to those
that already exist, otherwise the set will replace them.
is_add - add or remove the set
is_add=0, is_multipath=1 and an empty set, results in deleting the route.
It is also considerably faster to add multiple paths at once, than one at a time:
vat# ip_add_del_route 1.1.1.1/32 count 100000 multipath via 10.10.10.11
100000 routes in .572240 secs, 174751.80 routes/sec
vat# ip_add_del_route 1.1.1.1/32 count 100000 multipath via 10.10.10.12
100000 routes in .528383 secs, 189256.54 routes/sec
vat# ip_add_del_route 1.1.1.1/32 count 100000 multipath via 10.10.10.13
100000 routes in .757131 secs, 132077.52 routes/sec
vat# ip_add_del_route 1.1.1.1/32 count 100000 multipath via 10.10.10.14
100000 routes in .878317 secs, 113854.12 routes/sec
vat# ip_route_add_del 1.1.1.1/32 count 100000 multipath via 10.10.10.11 via 10.10.10.12 via 10.10.10.13 via 10.10.10.14
100000 routes in .900212 secs, 111084.93 routes/sec
Change-Id: I416b93f7684745099c1adb0b33edac58c9339c1a
Signed-off-by: Neale Ranns <neale.ranns@cisco.com>
Signed-off-by: Ole Troan <ot@cisco.com>
Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>
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Change-Id: I18dfe51000758f44b991d2dd065c9aa2bc5863d5
Signed-off-by: jackiechen1985 <xiaobo.chen@tieto.com>
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1. Fix af_packet memory leak;
2. Fix close socket twice;
3. Adjust debug log for syscall;
4. Adjust dhcp client output log;
Change-Id: I96bfaef16c4fad80c5da0d9ac602f911fee1670d
Signed-off-by: jackiechen1985 <xiaobo.chen@tieto.com>
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Change-Id: I36ad1ef2a53af3d3f3a6348bc189b17e9e4e21bd
Signed-off-by: jackiechen1985 <xiaobo.chen@tieto.com>
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When configuring a DHCP client, both the UDP ports for DHCP client
and server are registered. Packets to the server port end up being
dropped unless you have also configured a DHCP proxy.
This breaks a common home/office gateway use case where the WAN
interface gets configured using a DHCP client and devices attached
to a LAN interface attempt to configure themselves using DHCP. If
you try to punt to an external DHCP daemon to handle the LAN client
requests, the packets never make it to the external daemon because
of the server port being registered.
Modify dhcp_maybe_register_udp_ports() to accept a parameter that
controls which ports get registered. For a DHCP client, only the
client port is registered. For a DHCP proxy, both client and server
ports are registered.
Change-Id: I2182d9827e4c7424b03ebb94952c3d2dc37abdb6
Signed-off-by: Matthew Smith <mgsmith@netgate.com>
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Change-Id: I53ab8d17914e6563110354e4052109ac02bf8f3b
Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>
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Change-Id: I403173846bc5b1bbbe2a2c41225b0f666f851cb9
Signed-off-by: Filip Tehlar <ftehlar@cisco.com>
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fix a debug CLI scripting bug: cp_ip6_address_add_del_command_function
ate any subsequent commands, yielding indigestion.
Change-Id: Iaca7bed5687759da36ae91dc658e758549b71796
Signed-off-by: Dave Barach <dave@barachs.net>
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Change-Id: I658489dc9cf437ff43d9c69a896c9fe4e01ec38e
Signed-off-by: Dave Barach <dave@barachs.net>
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Rewrite vlib_buffer_chain_linearize function so that it works as intended.
Linearize buffer chains coming out of reassembly to work around some
dpdk-tx issues. Note that this is not a complete workaround
as a sufficiently large packet will still cause the resulting chain to
be too long.
Drop features from reassembly code which relies on knowing which and how
many buffers were freed during linearization, buffer counts and tracing
capabilities for these cases.
Change-Id: Ic65de53ecb5c78cd96b178033f6a576ab4060ed1
Signed-off-by: Klement Sekera <ksekera@cisco.com>
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Change-Id: I6c13af7e97753da013cdd5b212302d008cbd616d
Signed-off-by: Neale Ranns <nranns@cisco.com>
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Change-Id: I4e836244409c98739a13092ee252542a2c5fe259
Signed-off-by: Damjan Marion <damarion@cisco.com>
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Example:
buffers {
default data-size 1536
}
Change-Id: I5b4436850ca18025c9fdcfc7ed648c2c2732d660
Signed-off-by: Damjan Marion <damarion@cisco.com>
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Change-Id: Ia083050389853c25b069f0f8286d50d3f4aef527
Signed-off-by: Damjan Marion <damarion@cisco.com>
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Change-Id: I6048c6a51efa826ac333f7d15919cb87dd766d74
Signed-off-by: Damjan Marion <damarion@cisco.com>
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DHCP tests failed intermittantly with a core dump.
Let's see if this fixes it.
Change-Id: I42829a2c7e7f5a9a6775330d37bf972ff0008210
Signed-off-by: Ole Troan <ot@cisco.com>
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dhcp packets might (when flooded) arrive in chains of cloned buffers
Change-Id: Ifddecd656b6a5d6ba8cd94184f5c021684e35548
Signed-off-by: Eyal Bari <ebari@cisco.com>
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Change-Id: I8bf411adc6c5f4caa349d161174b544d2de3ad1d
Signed-off-by: Dave Barach <dave@barachs.net>
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Change-Id: Ied34720ca5a6e6e717eea4e86003e854031b6eab
Signed-off-by: Dave Barach <dave@barachs.net>
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Change-Id: Ieb8b53977fc8484c19780941e232ee072b667de3
Signed-off-by: Damjan Marion <damarion@cisco.com>
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Freeing the prefix and address vectors after signalling them from
dhcpv6_client_node_fn to either the pd or iana report processes is
absolutely wrong. The code has appeared to work by luck.
This took three full days' worth of expert effort to root cause - in
the context of an unrelated patch - and about one minute to fix.
Change-Id: Ie589ab1a70ae83441ab4e8b6618a6d405741f53f
Signed-off-by: Dave Barach <dave@barachs.net>
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Change-Id: I682a47d6cf9975aca6136188d28ee93eaadf4fe3
Signed-off-by: Juraj Sloboda <jsloboda@cisco.com>
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- Generate client DUID only when DHCPv6 PD feature is enabled
- Change client DUID type from DUID-LLT to DUID-LL
- Fix coverity warnings
Change-Id: I20e518fc9a1c5f3f7ea9add7e7e03a487c99e978
Signed-off-by: Juraj Sloboda <jsloboda@cisco.com>
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Change-Id: I72a1ccdfdd5573335ef78fc01d5268934c73bd31
Signed-off-by: Juraj Sloboda <jsloboda@cisco.com>
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- use types on the DHCP API so that the same data is sent in comfing messages and in dumps
- add the DHCP client dump API
- update VOM to refelct API changes
- rename VOM class dhcp_config* dhcp_client*
- the VOM dhcp_client class maintains the lease data (which it reads on a dump) for clients to read
Change-Id: I2a43463937cbd80c01d45798e74b21288d8b8ead
Signed-off-by: Neale Ranns <neale.ranns@cisco.com>
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the ip4-dhcp-client-detect feature MUST run prior to nat44-out2in, or
inbound dhcp broadcast packets will be dropped. Certain dhcp servers
answer lease renewal dhcp-request packets with broadcast dhcp-acks, leading
to unrecoverable lease loss.
In detail, this constraint:
VNET_FEATURE_INIT (ip4_snat_out2in, static) = {
.arc_name = "ip4-unicast",
.node_name = "nat44-out2in",
.runs_after = VNET_FEATURES ("acl-plugin-in-ip4-fa"),
};
doesn't get the job done:
ip4-unicast:
[17] nat44-out2in
[23] ip4-dhcp-client-detect
[26] ip4-not-enabled
Add a proper constraint:
VNET_FEATURE_INIT (ip4_snat_out2in, static) = {
.arc_name = "ip4-unicast",
.node_name = "nat44-out2in",
.runs_after = VNET_FEATURES ("acl-plugin-in-ip4-fa",
"ip4-dhcp-client-detect"),
};
and the interface feature order is OK, at least in this regard:
ip4-unicast:
[17] ip4-dhcp-client-detect
[18] nat44-out2in
[26] ip4-not-enabled
We need to carefully audit (especially) the ip4-unicast feature arc,
which has [gasp] 37 features on it!
Change-Id: I5e749ead7ab2a25d80839a331de6261e112977ad
Signed-off-by: Dave Barach <dave@barachs.net>
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When a DHCP client is in the bound state, it wakes up
halfway through it's lease (by default) to try and renew
the lease. The ip4-dhcp-client-detect is not enabled as
a feature at this point, so replies sent from the DHCP
server do not get applied to the lease. Eventually the
lease expires, the address is removed from the interface,
a new discovery is performed and the same address is added
back to the interface.
Before sending a request to renew in the bound state, enable
the feature to process the reply.
Change-Id: I95332ee0596f47df6f3c8bf8e3f0698dde9a1fc5
Signed-off-by: Matthew Smith <mgsmith@netgate.com>
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Add a few dhcp client rx packet/state counters
Temporarily disable the dhcp client unit test, since it trips over the
newly-added hardware address check.
Change-Id: I7f68607e6ed3d738cba357c3fe76664a99b71cd8
Signed-off-by: Dave Barach <dave@barachs.net>
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Change-Id: I469a734747099cef2d135d77e4db0244e24bf0bc
Signed-off-by: Dave Barach <dbarach@cisco.com>
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Based on https://gerrit.fd.io/r/#/c/10920/
Updates service definition in stats.api with correct reply message names.
Change-Id: I3282bee5304e667e23bc1fab3f43d967a50d880d
Signed-off-by: Marek Gradzki <mgradzki@cisco.com>
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This reverts commit f7b7fa53b7eaec81d8c00c1023fb7d01f1f9761f.
Change-Id: I87496342943248e94f01ada31459f387c0a3a610
Signed-off-by: Ole Troan <ot@cisco.com>
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Change-Id: I7de987c30b263d43521e6280c5273f30b5f6e11c
Signed-off-by: Ole Troan <ot@cisco.com>
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We disable the client detect feature when we bind a DHCP address. Turn
it back on again when the lease expires. Otherwise, if the DHCP
server replies after an outage, we'll never see the reply.
Add dhcp packet tx counters, by packet type
Change-Id: Id54b05647d5d7bd8d3ab99e6584ee86d9e4ff7f9
Signed-off-by: Dave Barach <dave@barachs.net>
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Crash occurring With a worker thread configured and dhcp
client active on an interface. When a DHCP reply packet
is received, call to ethernet_get_main() from
dhcp_proxy_to_client_input() was causing a crash.
Replaced with a call to vnet_get_ethernet_main().
Once that was resolved, calling dhcp_client_acquire_address()
from a worker thread also caused a crash. Changed so the main
thread will do the address/route configuration.
Change-Id: Ib23984787102dea8cf6cfcde86188a751f15c1e1
Signed-off-by: Matthew Smith <mgsmith@netgate.com>
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now we get
00:00:03:665501: pg-input
...
00:00:03:665681: ethernet-input
...
00:00:03:665691: ip6-input
UDP: 2001::1 -> ffef::1
tos 0x00, flow label 0x0, hop limit 64, payload length 108
UDP: 1234 -> 1234
length 108, checksum 0x7b25
00:00:03:665695: ip6-not-enabled
UDP: 2001::1 -> ffef::1
tos 0x00, flow label 0x0, hop limit 64, payload length 108
UDP: 1234 -> 1234
length 108, checksum 0x7b25
00:00:03:665706: error-drop
ethernet-input: no error
Same goes for IPv4
Change-Id: Ia360df39b43281d3a0aa1b686f04b73cfa37c546
Signed-off-by: Neale Ranns <nranns@cisco.com>
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DISCOVER message sent.
According to RFC2131:
In the case of a client using DHCP for initial configuration (before
the client's TCP/IP software has been completely configured), DHCP
requires creative use of the client's TCP/IP software and liberal
interpretation of RFC 1122. The TCP/IP software SHOULD accept and
forward to the IP layer any IP packets delivered to the client's
hardware address before the IP address is configured; DHCP servers
and BOOTP relay agents may not be able to deliver DHCP messages to
clients that cannot accept hardware unicast datagrams before the
TCP/IP software is configured.
To work around some clients that cannot accept IP unicast datagrams
before the TCP/IP software is configured as discussed in the previous
paragraph, DHCP uses the 'flags' field [21]. The leftmost bit is
defined as the BROADCAST (B) flag. The semantics of this flag are
discussed in section 4.1 of this document. The remaining bits of the
flags field are reserved for future use. They MUST be set to zero by
clients and ignored by servers and relay agents. Figure 2 gives the
format of the 'flags' field.
this changes means VPP conforms to the:
"SHOULD accept and forward to the IP layer any IP packets delivered
to the client's hardware address before the IP address is configured"
with the caveat that VPP allows DHCP packets destined to the stanard client
DHCP port to be delivered. With this enhancement the control-plane is now
able to choose the setting of the broadcast flag.
Change-Id: Ia4eb2c9bb1e30c29f9192facc645e9533641955a
Signed-off-by: Neale Ranns <nranns@cisco.com>
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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>
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This does not update api client code. In other words, if the client
assumes the transport is shmem based, this patch does not change that.
Furthermore, code that checks queue size, for tail dropping, is not
updated.
Done for the following apis:
Plugins
- acl
- gtpu
- memif
- nat
- pppoe
VNET
- bfd
- bier
- tapv2
- vhost user
- dhcp
- flow
- geneve
- ip
- punt
- ipsec/ipsec-gre
- l2
- l2tp
- lisp-cp/one-cp
- lisp-gpe
- map
- mpls
- policer
- session
- span
- udp
- tap
- vxlan/vxlan-gpe
- interface
VPP
- api/api.c
OAM
- oam_api.c
Stats
- stats.c
Change-Id: I0e33ecefb2bdab0295698c0add948068a5a83345
Signed-off-by: Florin Coras <fcoras@cisco.com>
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- 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>
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Change-Id: I45a166b5780675d2bc6fe90595f413725704eaa8
Signed-off-by: khemendra kumar <khemendra.kumar13@gmail.com>
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Enhence support of DHCP VSS (Virtual Subnet Selection) to include
VSS type 0 where VSS info is a NVT (Network Virtual Terminal)
ASCII VPN ID where the ASCII string MUST NOT be terminated with a
zero byte. Existing code already support VSS type 1, where VSS
information is a RFC 2685 VPN-ID of 7 bytes with 3 bytes OUI
and 4 bytes VPN index, and VSS type 255 indicating global VPN.
Change-Id: I54edbc447c89a2aacd1cc9fc72bd5ba386037608
Signed-off-by: John Lo <loj@cisco.com>
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- Global variables declared in header files without
the use of the 'extern' keword will result in multiple
instances of the variable to be created by the compiler
-- one for each different source file in which the
the header file is included. This results in wasted
memory allocated in the BSS segments as well as
potentially introducing bugs in the application.
Change-Id: I6ef1790b60a0bd9dd3994f8510723decf258b0cc
Signed-off-by: Dave Wallace <dwallacelf@gmail.com>
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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>
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