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* Add clib_socket_init support for abstract sockets
if name starts with an '@'
* Add clib_socket_init_netns to open socket in netns
* Add clib_netns_open
Type: feature
Change-Id: I89637ad657c702ec38ddecb5c03a1673d0dfb104
Signed-off-by: Nathan Skrzypczak <nathan.skrzypczak@gmail.com>
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Type: fix
For a TAP device the MTU is set via the ethernet_register for TUN we
need to do it explicitly (like we do for other tunnel types).
Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
Signed-off-by: Neale Ranns <neale@graphiant.com>
Change-Id: Ie6a13c795acb35b53f8d99b05c70c3e73a7b428e
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Type: improvement
This patch adds flags to represent the modern NICs capabilities.
Change-Id: I96d38d9ab7eac55974d72795cd100d8337168e1e
Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
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Type: improvement
Change-Id: I4008cadfd5141f921afbdc09a3ebcd1dcf88eb29
Signed-off-by: Damjan Marion <damarion@cisco.com>
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Type: refactor
Change-Id: Ie67dc579e88132ddb1ee4a34cb69f96920101772
Signed-off-by: Damjan Marion <damarion@cisco.com>
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A plugin can set the speed on a host interface making it possible for
host applications to be aware of the actual interface speed, not the
one that the driver reports by default.
With this change, add a function to set speed on a host interface.
Type: feature
Signed-off-by: Alexander Chernavin <achernavin@netgate.com>
Change-Id: I259a52b736022bdd805e8d92dcd1bfd5c58f6f96
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Type: feature
Add a function to adjust the link state of the host side of a tap
interface. If an application (e.g. route protocol daemons) running on
the host uses netlink to monitor interface state, a plugin
could use this function to communicate a loss of connectivity
to the application by making the interface appear to go down.
Requires a somewhat recent kernel. E.g. it does not have any effect
on CentOS 7 but it works on CentOS 8.
Change-Id: I677ee7889d2eb142e2395bea98f0b4d7e7e7f810
Signed-off-by: Matthew Smith <mgsmith@netgate.com>
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Type: fix
Change-Id: I53cb96950f8658d7159fb0bd8ecfa50b6977e5af
Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
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Type: fix
Change-Id: I478b6fc54c47f0e77a1470ed29fdd56774671441
Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
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This is part of bigger refactor.
Type: refactor
Change-Id: I6fc2c0a1e2d217a70952901bcf775b8485bd3c20
Signed-off-by: Damjan Marion <damarion@cisco.com>
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Type: fix
Change-Id: I96c30baaf34fe7b0cd899966a507501e58cde934
Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
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sanitizer complains about strlen on hi->name in tap_dump_ifs.
hi->name is a vector which is not null-terminated, so use vec_len.
Type: fix
Signed-off-by: Vladimir Isaev <visaev@netgate.com>
Change-Id: Icdd5f65369bb51b0c4a9cd86c24899e6febd837c
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Type: refactor
tap, virtio and vhost use virtio/vhost header files from linux
kernel. Different features are supported on different kernel
versions, making it difficult to use those in VPP. This patch
removes virtio/vhost based header dependencies to local header
files.
Change-Id: I064a8adb5cd9753c986b6f224bb075200b3856af
Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
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Type: feature
Change-Id: I5868dd267aa26aa97aec5fd70e70c5956ac52277
Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
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Type: fix
From kernel 4.20, xdp support has been added in tun_sendmsg.
If sndbuf == INT_MAX, kernel executes xdp data path
for tun driver which assumes packets are ethernet frames.
This patch is avoiding the xdp data path in kernel by setting
the sendbuf value < INT_MAX.
Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
Change-Id: Ia4aa54b177b96d56a2d513d18d26ca01d5b88929
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Type: fix
Change-Id: I3bcc8ff1cf0a828ce3ba112694d38e3287d38d8d
Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
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Type: fix
Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
Change-Id: Ifeae641ec0aa7de74e33e582234505bf6e28ca87
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Type: improvement
Change-Id: I5b9d5ea192776f14a45bf909acc4bef7793521e8
Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
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Type: improvement
tap_delete_if() returns early if the interface type is not
VIRTIO_IF_TYPE_TAP. Allow VIRTIO_IF_TYPE_TUN also and take
appropriate action for those interfaces.
Change-Id: I196b6d6f3f5e1543a14d6be76fd879d44c9794fd
Signed-off-by: Matthew Smith <mgsmith@netgate.com>
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This matches vhost queues to linux netdev queues and avoids random
packet shuffling across vhost queues on rx.
Change-Id: I9901689d361e440fb0b91c9fbaf8124ce525b316
Type: fix
Signed-off-by: Aloys Augustin <aloaugus@cisco.com>
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Type: feature
Change-Id: I699a01ac925fe5c475a36032edb7018618bb4dd4
Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
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Type: fix
Change-Id: Ib320171708bebde6d1dae0b2c665f9bcfc9102db
Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
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Type: feature
Change-Id: I775f53531972447ebae0d69b9e2dfeee84d115e5
Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
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host mtu can't be set if tap interface is in namespace.
This patch fixes this issue.
Type: fix
Change-Id: I63811c4b56c708fe708061a8afbaec41994f08ca
Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
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Tap configuration code sets the host mac address
two time. This patch fixes it.
Type: fix
Change-Id: I7bebb9b7f25352a8a9a98bae6a0636757c0cea9c
Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
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Type: refactor
Change-Id: I0d4b79ef384c11c841576d264bfd8ccb21783e10
Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
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Use consistent API types.
Type: fix
Change-Id: I11cc7f6347b7a60e5fd41e54f0c7994e2d81199f
Signed-off-by: Jakub Grajciar <jgrajcia@cisco.com>
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Type: refactor
Change-Id: I51405b9d09fb6fb03d08569369fdd4e11c647908
Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
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check the return result from fcntl, and if error, behave
the same way the expansion of _IOCTL macro does.
Type: fix
Change-Id: I6d537d1bdedae64470612aef64b46e07387fe84b
Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com>
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Type: feature
Change-Id: I7dcc8c6911d02729b3bda1b3a21a211c82c3b949
Signed-off-by: Damjan Marion <damarion@cisco.com>
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Type: feature
Change-Id: I402f4c88dee70fbb0b3b61dc4e0a4034d24d8b56
Signed-off-by: Damjan Marion <damarion@cisco.com>
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Type: docs
Change-Id: I039ba9ad5385452b202366fba0b367506a21ea4f
Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>
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Type: fix
Ticket: VPP-1766
revert e4ac48e792f4eebfce296cfde844ee73b1abd62f
Change-Id: I03feea4008a47859d570ad8d1d08ff3f30d139ef
Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
(cherry picked from commit 623a1b7053424b539a51faf866ab839d3da3f45b)
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The VPP code tries to set all userspace memory in the table via IOCTL
to VHOST_SET_MEM_TABLE. But on aarch64, the userspace address range is
larger (48 bits) than that on x86 (47 bits). Below is an segment from
/proc/[vpp]/maps.
fffb41200000-fffb43a00000 rw-s 00000000 00:0e 532232
/anon_hugepage (deleted)
Instead of setting all userspace memory space to vhost-net, will only set
the address space reserved by pmalloc module during initialization.
Type: fix
Change-Id: I91cb35e990869b42094cf2cd0512593733d33677
Signed-off-by: Lijian Zhang <Lijian.Zhang@arm.com>
Reviewed-by: Steve Capper <Steve.Capper@arm.com>
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Type: fix
Fixes: c30d87e6139c64eceade54972715b402c625763d
Change-Id: I86b606b18ff6a30709b7aff089fd5dd00103bd7f
Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
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Type: feature
Change-Id: If11f00574322c35c1780c31d5f7b47d30e083e35
Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
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Multiple API message handlers call vnet_get_sup_hw_interface(...)
without checking the inbound sw_if_index. This can cause a
pool_elt_at_index ASSERT in a debug image, and major disorder in a
production image.
Given that a number of places are coded as follows, add an
"api_visible_or_null" variant of vnet_get_sup_hw_interface, which
returns NULL given an invalid sw_if_index, or a hidden sw interface:
- hw = vnet_get_sup_hw_interface (vnm, sw_if_index);
+ hw = vnet_get_sup_hw_interface_api_visible_or_null (vnm, sw_if_index);
if (hw == NULL || memif_device_class.index != hw->dev_class_index)
return clib_error_return (0, "not a memif interface");
Rename two existing xxx_safe functions -> xxx_or_null to make it
obvious what they return.
Type: fix
Change-Id: I29996e8d0768fd9e0c5495bd91ff8bedcf2c5697
Signed-off-by: Dave Barach <dave@barachs.net>
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CLI allocates vectors consumed by tap_create_if(), whereas API pass
null-terminated C-strings allocated on API segment.
Do not try to be too clever here, and just allocate our own private
copies.
Type: fix
Fixes: 8d879e1a6bac47240a232893e914815f781fd4bf
Ticket: VPP-1724
Change-Id: I3ccdb8e0fcd4cb9be414af9f38cf6c33931a1db7
Signed-off-by: Benoît Ganne <bganne@cisco.com>
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If the host interface name is not specified at creation, host_if_name
was wrongly set to a stack-allocated variable. Make sure it always
points to a heap allocated vector.
At deletion time, we must free all allocated vectors.
Type:fix
Change-Id: I17751f38e95097998d51225fdccbf3ce3c365593
Signed-off-by: Benoît Ganne <bganne@cisco.com>
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This patch adds support to configure host mtu size using
api, cli or startup.conf.
Type: feature
Change-Id: I8ab087d82dbe7dedc498825c1a3ea3fcb2cce030
Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
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In tap tx routine, virtio_interface_tx_inline, there used to be an
interface spinlock to ensure packets are processed in an orderly fashion
clib_spinlock_lock_if_init (&vif->lockp);
When virtio code was introduced in 19.04, that line is changed to
clib_spinlock_lock_if_init (&vring->lockp);
to accommodate multi-queues.
Unfortunately, althrough the spinlock exists in the vring, it was never
initialized for tap, only for virtio. As a result, many nasty things can
happen when running tap interface in multi-thread environment. Crash is
inevitable.
The fix is to initialize vring->lockp for tap and remove vif->lockp as it
is not used anymore.
Change-Id: I82b15d3e9b0fb6add9b9ac49bf602a538946634a
Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
(cherry picked from commit c2c89782d34df0dc7197b18b042b4c2464a101ef)
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When container is deleted which has tap interface attached,
Linux also delete the tap interface leaving the VPP side of
tap. This patch does a clean up job to remove that VPP side
of tap interface.
To produce the behavior:
In VPP:
create tap
On linux:
sudo ip netns add ns1
sudo ip link set dev tap0 netns ns1
sudo ip netns del ns1
Change-Id: Iaed1700073a9dc64e626c1d0c449f466c143f3ae
Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
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Crash will happen when someone will try to setup a tap interface
in host namespace without providing the host side of tap interface
custom name. This patch fixes the problem by using the default name
in this case.
Change-Id: Ic1eaea5abd01bc6c766d0e0fcacae29ab7a7ec45
Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
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Change-Id: Id71ffa77e977651f219ac09d1feef334851209e1
Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
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RDMA ibverb is a userspace API to efficiently rx/tx packets. This is an
initial, unoptimized driver targeting Mellanox cards.
Next steps should include batching, multiqueue and additional cards.
Change-Id: I0309c7a543f75f2f9317eaf63ca502ac7a093ef9
Signed-off-by: Benoît Ganne <bganne@cisco.com>
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while https://gerrit.fd.io/r/#/c/16590/ fixed the leaked fd which coverity
reported at that time, new coverity run reports simailar leaked fd in a
different goto punt path. It would be nice if coverity reported both of them
at the same time. Or perhaps it did and I just missed it. Anyway, the new fix
is to put the close (fd) statement prior to the return of tap_create_if routine
which should catch all goto's.
Change-Id: I0a51ed3710e32d5d74c9cd9b5066a667153e2f9d
Signed-off-by: Steven Luong <sluong@cisco.com>
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This commit adds a "gso" parameter to existing "create tap..." CLI,
and a "no-gso" parameter for the compatibility with the future,
when/if defaults change.
It makes use of the lowest bit of the "tap_flags" field in the API call
in order to allow creation of GSO interfaces via API as well.
It does the necessary syscalls to enable the GSO
and checksum offload support on the kernel side and sets two flags
on the interface: virtio-specific virtio_if_t.gso_enabled,
and vnet_hw_interface_t.flags & VNET_HW_INTERFACE_FLAG_SUPPORTS_GSO.
The first one, if enabled, triggers the marking of the GSO-encapsulated
packets on ingress with VNET_BUFFER_F_GSO flag, and
setting vnet_buffer2(b)->gso_size to the desired L4 payload size.
VNET_HW_INTERFACE_FLAG_SUPPORTS_GSO determines the egress packet
processing in interface-output for such packets:
When the flag is set, they are sent out almost as usual (just taking
care to set the vnet header for virtio).
When the flag is not enabled (the case for most interfaces),
the egress path performs the re-segmentation such that
the L4 payload of the transmitted packets equals gso_size.
The operations in the datapath are enabled only when there is at least
one GSO-compatible interface in the system - this is done by tracking
the count in interface_main.gso_interface_count. This way the impact
of conditional checks for the setups that do not use GSO is minimized.
"show tap" CLI shows the state of the GSO flag on the interface, and
the total count of GSO-enabled interfaces (which is used to enable
the GSO-related processing in the packet path).
This commit lacks IPv6 extension header traversal support of any kind -
the L4 payload is assumed to follow the IPv6 header. Also it performs
the offloads only for TCP (TSO - TCP segmentation offload).
The UDP fragmentation offload (UFO) is not part of it.
For debug purposes it also adds the debug CLI:
"set tap gso {<interface> | sw_if_index <sw_idx>} <enable|disable>"
Change-Id: Ifd562db89adcc2208094b3d1032cee8c307aaef9
Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com>
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Change-Id: Ifc98373371b967c49a75989eac415ddda1dcf15f
Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
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Change-Id: Id7fccf2f805e578fb05032aeb2b649a74c3c0e56
Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
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coverity complains about fd leaking inside the if statement because there is
a goto which bypasses the statement close (fd).
The fix is to close (fd) immediately after it is no longer used.
Change-Id: Ic5035b07ec1f179ff3db77744843e47aa8067a3c
Signed-off-by: Steven <sluong@cisco.com>
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