net_util: add support for IPv6 addresses on tap interfaces

Allow tap interfaces to be configured with an IPv6 address. The change
is fairly straightforward: we need to update the API types and CLI
p

net_util: add support for IPv6 addresses on tap interfaces

Allow tap interfaces to be configured with an IPv6 address. The change
is fairly straightforward: we need to update the API types and CLI
parsing to accept either an IPv6 or IPv4 and then match on the IP
address type when the tap device is configured.

For IPv6 addresses, the netmask (prefix) must be provided at the same
time as the address itself (in the SIOCSIFADDR ioctl). They cannot be
configured separately. So we remove the separate "set_netmask" function
and convert "set_ip_addr" to also accept a netmask. For IPv4 addresses,
the IP address and netmask were already always set together, so this
should have no functional impact for users of IPv4 addresses.

Signed-off-by: Gregory Anders <ganders@cloudflare.com>

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build: Centralize rust-vmm crates to workspace

Modify `Cargo.toml` in each member crate to follow the dependencies
specified in root `Cargo.toml` file.

Signed-off-by: Ruoqing He <heruoqing@iscas.ac

build: Centralize rust-vmm crates to workspace

Modify `Cargo.toml` in each member crate to follow the dependencies
specified in root `Cargo.toml` file.

Signed-off-by: Ruoqing He <heruoqing@iscas.ac.cn>

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build: Format Cargo.toml files using taplo

Run the taplo formatter with the newly added configuration file

Signed-off-by: Rob Bradford <rbradford@rivosinc.com>

build: add REUSE Compliance Check

In accordance with reuse requirements:
- Place each license file in the LICENSES/ directory
- Add missing SPDX-License-Identifier to files.
- Add .reuse/dep5 to bul

build: add REUSE Compliance Check

In accordance with reuse requirements:
- Place each license file in the LICENSES/ directory
- Add missing SPDX-License-Identifier to files.
- Add .reuse/dep5 to bulk-license files

Fixes: #5887

Signed-off-by: Ruslan Mstoi <ruslan.mstoi@intel.com>

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build: Bump vmm-sys-util crate and its consumers

This patch bumps the following crates, including `kvm-bindings@0.7.0`*,
`kvm-ioctls@0.16.0`**, `linux-loader@0.11.0`, `versionize@0.2.0`,
`versionize

build: Bump vmm-sys-util crate and its consumers

This patch bumps the following crates, including `kvm-bindings@0.7.0`*,
`kvm-ioctls@0.16.0`**, `linux-loader@0.11.0`, `versionize@0.2.0`,
`versionize_derive@0.1.6`***, `vhost@0.10.0`,
`vhost-user-backend@0.13.1`, `virtio-queue@0.11.0`, `vm-memory@0.14.0`,
`vmm-sys-util@0.12.1`, and the latest of `vfio-bindings`, `vfio-ioctls`,
`mshv-bindings`,`mshv-ioctls`, and `vfio-user`.

* A fork of the `kvm-bindings` crate is being used to support
serialization of various structs for migration [1]. Also, code changes
are made to accommodate the updated `struct xsave` from the Linux
kernel. Note: these changes related to `struct xsave` break
live-upgrade.

** The new `kvm-ioctls` crate introduced breaking changes for
the `get/set_one_reg` API on `aarch64` [2], so code changes are made to
the new APIs.

*** A fork of the `versionize_derive` crate is being used to support
versionize on packed structs [3].

[1] https://github.com/cloud-hypervisor/kvm-bindings/tree/ch-v0.7.0
[2] https://github.com/rust-vmm/kvm-ioctls/pull/223
[3] https://github.com/cloud-hypervisor/versionize_derive/tree/ch-0.1.6

Fixes: #6072

Signed-off-by: Bo Chen <chen.bo@intel.com>

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net_gen: Use more specific clippy lint controls

Remove clippy:all and update it with correct clippy lint,
so that it gives proper information.

Signed-off-by: Ravi kumar Veeramally <ravikumar.veeram

net_gen: Use more specific clippy lint controls

Remove clippy:all and update it with correct clippy lint,
so that it gives proper information.

Signed-off-by: Ravi kumar Veeramally <ravikumar.veeramally@intel.com>

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net_gen: Avoid clashing names in imports

Remove use of glob imports to fix an issue detected by clippy.

Signed-off-by: Rob Bradford <rbradford@rivosinc.com>

build: Bulk update dependencies

Signed-off-by: Rob Bradford <robert.bradford@intel.com>

net_gen: add a safety comment

Signed-off-by: Wei Liu <liuwe@microsoft.com>

build: bump vmm-sys-util from 0.9.0 to 0.10.0

This patch requires the vhost-user-backend crate to be bumped from 0.5.0
to 0.5.1.

Bumps [vmm-sys-util](https://github.com/rust-vmm/vmm-sys-util) from

build: bump vmm-sys-util from 0.9.0 to 0.10.0

This patch requires the vhost-user-backend crate to be bumped from 0.5.0
to 0.5.1.

Bumps [vmm-sys-util](https://github.com/rust-vmm/vmm-sys-util) from 0.9.0 to 0.10.0.
- [Release notes](https://github.com/rust-vmm/vmm-sys-util/releases)
- [Changelog](https://github.com/rust-vmm/vmm-sys-util/blob/main/CHANGELOG.md)
- [Commits](https://github.com/rust-vmm/vmm-sys-util/compare/v0.9.0...v0.10.0)

---
updated-dependencies:
- dependency-name: vmm-sys-util
dependency-type: direct:production
update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>

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build: migrate to Rust 2021 edition

Rust 2021 edition has a few improvements over the 2018 edition. Migrate
the project to 2021 edition by following recommended migration steps.
Luckily, the code it

build: migrate to Rust 2021 edition

Rust 2021 edition has a few improvements over the 2018 edition. Migrate
the project to 2021 edition by following recommended migration steps.
Luckily, the code itself doesn't require fixing.

Bump MSRV to 1.56 as it is required by the 2021 edition. Also fix the
clap build dependency to make Cloud Hypervisor build again.

Signed-off-by: Wei Liu <liuwe@microsoft.com>

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build: bump vmm-sys-util from 0.8.0 to 0.9.0

Bumps [vmm-sys-util](https://github.com/rust-vmm/vmm-sys-util) from 0.8.0 to 0.9.0.
- [Release notes](https://github.com/rust-vmm/vmm-sys-util/releases)

build: bump vmm-sys-util from 0.8.0 to 0.9.0

Bumps [vmm-sys-util](https://github.com/rust-vmm/vmm-sys-util) from 0.8.0 to 0.9.0.
- [Release notes](https://github.com/rust-vmm/vmm-sys-util/releases)
- [Changelog](https://github.com/rust-vmm/vmm-sys-util/blob/main/CHANGELOG.md)
- [Commits](https://github.com/rust-vmm/vmm-sys-util/compare/v0.8.0...v0.9.0)

---
updated-dependencies:
- dependency-name: vmm-sys-util
dependency-type: direct:production
update-type: version-update:semver-minor
...

This needed a bunch of manual updates as well, including vfio-ioctls and
vhost crates. The vhost crate is being patched with the latest version
from rust-vmm because the version 0.1.0 on crates.io doesn't include the
patches we need yet.

Signed-off-by: dependabot[bot] <support@github.com>
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>

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build: Use fixed versions in Cargo.toml files

This doesn't really affect the build as we ship a Cargo.lock with fixed
versions in. However for clarity it makes sense to use fixed versions
throughout

build: Use fixed versions in Cargo.toml files

This doesn't really affect the build as we ship a Cargo.lock with fixed
versions in. However for clarity it makes sense to use fixed versions
throughout and let dependabot update them.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>

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net_get, net_util: Move crate to rust 2018 edition

Signed-off-by: Rob Bradford <robert.bradford@intel.com>

net_gen, net_util: Regenerate bindings

Regernating the bindings required some minor changes to accomodate
changes around the accessing of unions.

Signed-off-by: Rob Bradford <robert.bradford@intel.

net_gen, net_util: Regenerate bindings

Regernating the bindings required some minor changes to accomodate
changes around the accessing of unions.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>

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vmm: Port to latest vmm-sys-util

The signal handling for vCPU signals has changed in the latest release
so switch to the new API.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>

cargo: Bump the kvm and vmm-sys-util crates

Since the kvm crates now depend on vmm-sys-util, the bump must be
atomic.
The kvm-bindings and ioctls 0.2.0 and 0.4.0 crates come with a few API
changes,

cargo: Bump the kvm and vmm-sys-util crates

Since the kvm crates now depend on vmm-sys-util, the bump must be
atomic.
The kvm-bindings and ioctls 0.2.0 and 0.4.0 crates come with a few API
changes, one of them being the use of a kvm_ioctls specific error type.
Porting our code to that type makes for a fairly large diff stat.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

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cargo: Update to the latest kvm-ioctls version

We need to rely on the latest kvm-ioctls version to benefit from the
recent addition of unregister_ioevent(), allowing us to detach a
previously regist

cargo: Update to the latest kvm-ioctls version

We need to rely on the latest kvm-ioctls version to benefit from the
recent addition of unregister_ioevent(), allowing us to detach a
previously registered eventfd to a PIO or MMIO guest address.

Because of this update, we had to modify the current constraint we had
on the vmm-sys-util crate, using ">= 0.1.1" instead of being strictly
tied to "0.2.0".

Once the dependency conflict resolved, this commit took care of fixing
build issues caused by recent modification of kvm-ioctls relying on
EventFd reference instead of RawFd.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>

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Bump vmm-sys-utils to 0.2.0

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

Cargo: Move to crates.io vmm-sys-util

Use the newly published 0.1.1 version.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

vendor: Move to the rust-vmm vmm-sys-util package

Locked to 60fe35be but no longer dependent on liujing2 repo.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>