ср, 12 янв. 2022 г. в 11:22, Roman Bolshakov <ro...@roolebo.dev>:
> On Wed, Jan 12, 2022 at 10:50:04AM +0300, Roman Bolshakov wrote: > > On Wed, Jan 12, 2022 at 12:14:15AM +0300, Vladislav Yaroshchuk wrote: > > > macOS provides networking API for VMs called 'vmnet.framework': > > > https://developer.apple.com/documentation/vmnet > > > > > > We can provide its support as the new QEMU network backends which > > > represent three different vmnet.framework interface usage modes: > > > > > > * `vmnet-shared`: > > > allows the guest to communicate with other guests in shared mode > and > > > also with external network (Internet) via NAT. Has (macOS-provided) > > > DHCP server; subnet mask and IP range can be configured; > > > > > > * `vmnet-host`: > > > allows the guest to communicate with other guests in host mode. > > > By default has enabled DHCP as `vmnet-shared`, but providing > > > network unique id (uuid) can make `vmnet-host` interfaces isolated > > > from each other and also disables DHCP. > > > > > > * `vmnet-bridged`: > > > bridges the guest with a physical network interface. > > > > > > This backends cannot work on macOS Catalina 10.15 cause we use > > > vmnet.framework API provided only with macOS 11 and newer. Seems > > > that it is not a problem, because QEMU guarantees to work on two most > > > recent versions of macOS which now are Big Sur (11) and Monterey (12). > > > > > > Also, we have one inconvenient restriction: vmnet.framework interfaces > > > can create only privileged user: > > > `$ sudo qemu-system-x86_64 -nic vmnet-shared` > > > > > > Attempt of `vmnet-*` netdev creation being unprivileged user fails with > > > vmnet's 'general failure'. > > > > > > This happens because vmnet.framework requires `com.apple.vm.networking` > > > entitlement which is: "restricted to developers of virtualization > software. > > > To request this entitlement, contact your Apple representative." as > Apple > > > documentation says: > > > > https://developer.apple.com/documentation/bundleresources/entitlements/com_apple_vm_networking > > > > > > One more note: we still have quite useful but not supported > > > 'vmnet.framework' features as creating port forwarding rules, IPv6 > > > NAT prefix specifying and so on. > > > > > > Nevertheless, new backends work fine and tested within > `qemu-system-x86-64` > > > on macOS Bir Sur 11.5.2 host with such nic models: > > > * e1000-82545em > > > * virtio-net-pci > > > * vmxnet3 > > > > > > The guests were: > > > * macOS 10.15.7 > > > * Ubuntu Bionic (server cloudimg) > > > > > > > > > This series partially reuses patches by Phillip Tennen: > > > > https://patchew.org/QEMU/20210218134947.1860-1-phillip.en...@gmail.com/ > > > So I included them signed-off line into one of the commit messages and > > > also here. > > > > > > v1 -> v2: > > > Since v1 minor typos were fixed, patches rebased onto latest master, > > > redundant changes removed (small commits squashed) > > > v2 -> v3: > > > - QAPI style fixes > > > - Typos fixes in comments > > > - `#include`'s updated to be in sync with recent master > > > v3 -> v4: > > > - Support vmnet interfaces isolation feature > > > - Support vmnet-host network uuid setting feature > > > - Refactored sources a bit > > > v4 -> v5: > > > - Missed 6.2 boat, now 7.0 candidate > > > - Fix qapi netdev descriptions and styles > > > (@subnetmask -> @subnet-mask) > > > - Support vmnet-shared IPv6 prefix setting feature > > > v5 -> v6 > > > - provide detailed commit messages for commits of > > > many changes > > > - rename properties @dhcpstart and @dhcpend to > > > @start-address and @end-address > > > - improve qapi documentation about isolation > > > features (@isolated, @net-uuid) > > > v6 -> v7: > > > - update MAINTAINERS list > > > v7 -> v8 > > > - QAPI code style fixes > > > v8 -> v9 > > > - Fix building on Linux: add missing qapi > > > `'if': 'CONFIG_VMNET'` statement to Netdev union > > > v9 -> v10 > > > - Disable vmnet feature for macOS < 11.0: add > > > vmnet.framework API probe into meson.build. > > > This fixes QEMU building on macOS < 11.0: > > > > https://patchew.org/QEMU/20220110034000.20221-1-jasow...@redhat.com/ > > > > > > > Hi Vladislav, > > > > What symbols are missing on Catalina except VMNET_SHARING_BUSY? > > > > It'd be great to get the feature working there. > > > > Thanks, > > Roman > > > > Ok it turned out not that many symbols are needed for successfull > compilation on Catalina: > > vmnet_enable_isolation_key > vmnet_network_identifier_key > VMNET_SHARING_SERVICE_BUSY > > The compilation suceeds if they're wrappeed by ifdefs. I haven't tested > it yet though. > > New version with Catalina 10.15 support submitted as v11. > Regards, > Roman > > > > Vladislav Yaroshchuk (7): > > > net/vmnet: add vmnet dependency and customizable option > > > net/vmnet: add vmnet backends to qapi/net > > > net/vmnet: implement shared mode (vmnet-shared) > > > net/vmnet: implement host mode (vmnet-host) > > > net/vmnet: implement bridged mode (vmnet-bridged) > > > net/vmnet: update qemu-options.hx > > > net/vmnet: update MAINTAINERS list > > > > > > MAINTAINERS | 5 + > > > meson.build | 16 +- > > > meson_options.txt | 2 + > > > net/clients.h | 11 ++ > > > net/meson.build | 7 + > > > net/net.c | 10 ++ > > > net/vmnet-bridged.m | 111 ++++++++++++ > > > net/vmnet-common.m | 330 ++++++++++++++++++++++++++++++++++ > > > net/vmnet-host.c | 105 +++++++++++ > > > net/vmnet-shared.c | 92 ++++++++++ > > > net/vmnet_int.h | 48 +++++ > > > qapi/net.json | 132 +++++++++++++- > > > qemu-options.hx | 25 +++ > > > scripts/meson-buildoptions.sh | 3 + > > > 14 files changed, 894 insertions(+), 3 deletions(-) > > > create mode 100644 net/vmnet-bridged.m > > > create mode 100644 net/vmnet-common.m > > > create mode 100644 net/vmnet-host.c > > > create mode 100644 net/vmnet-shared.c > > > create mode 100644 net/vmnet_int.h > > > > > > -- > > > 2.23.0 > > > > > > > -- Best Regards, Vladislav Yaroshchuk
