Build error: ui/protocol/ui_grpc.pb.go: undefined: grpc.StaticMethod

[UffeJakobsen]

On Archlinux I'm trying to build and install opensnitch (UI) from AUR as I've done lots of times before

I'm using latest and greatest opensnitch-git PKGBUILD from AUR:

https://aur.archlinux.org/packages/opensnitch-git

...
==> Starting build()...
go: finding module for package github.com/golang/protobuf/protoc-gen-go
go: downloading github.com/golang/protobuf v1.5.4
go: downloading google.golang.org/protobuf v1.33.0
go: finding module for package google.golang.org/grpc/cmd/protoc-gen-go-grpc
go: downloading google.golang.org/grpc v1.64.0
go: downloading google.golang.org/grpc/cmd/protoc-gen-go-grpc v1.4.0
go: downloading google.golang.org/protobuf v1.34.1
~/.cache/yay/opensnitch-git/src/opensnitch/proto ~/.cache/yay/opensnitch-git/src/opensnitch
protoc -I. ui.proto --go_out=../daemon/ui/protocol/ --go-grpc_out=../daemon/ui/protocol/ --go_opt=paths=source_relative --go-grpc_opt=paths=source_relative
python3 -m grpc_tools.protoc -I. --python_out=../ui/opensnitch/ --grpc_python_out=../ui/opensnitch/ ui.proto
~/.cache/yay/opensnitch-git/src/opensnitch
~/.cache/yay/opensnitch-git/src/opensnitch/daemon ~/.cache/yay/opensnitch-git/src/opensnitch
go: downloading github.com/google/gopacket v1.1.19
go: downloading github.com/iovisor/gobpf v0.2.0
go: downloading github.com/varlink/go v0.4.0
go: downloading github.com/vishvananda/netlink v1.1.1-0.20220115184804-dd687eb2f2d4
go: downloading golang.org/x/sys v0.13.0
go: downloading github.com/fsnotify/fsnotify v1.4.7
go: downloading golang.org/x/net v0.17.0
go: downloading google.golang.org/grpc v1.32.0
go: downloading google.golang.org/protobuf v1.26.0
go: downloading github.com/golang/protobuf v1.5.0
go: downloading github.com/google/nftables v0.1.0
go: downloading github.com/google/uuid v1.3.0
go: downloading github.com/vishvananda/netns v0.0.0-20200728191858-db3c7e526aae
go: downloading google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55
go: downloading github.com/mdlayher/netlink v1.4.2
go: downloading golang.org/x/text v0.13.0
go: downloading github.com/google/go-cmp v0.5.6
go: downloading github.com/josharian/native v0.0.0-20200817173448-b6b71def0850
go: downloading github.com/mdlayher/socket v0.0.0-20211102153432-57e3fa563ecb
go: downloading honnef.co/go/tools v0.2.2
go: downloading golang.org/x/tools v0.6.0
go: downloading github.com/BurntSushi/toml v0.4.1
go: downloading golang.org/x/mod v0.8.0
go: module github.com/golang/protobuf is deprecated: Use the "google.golang.org/protobuf" module instead.
# github.com/evilsocket/opensnitch/daemon/ui/protocol
ui/protocol/ui_grpc.pb.go:19:16: undefined: grpc.SupportPackageIsVersion8
ui/protocol/ui_grpc.pb.go:49:41: undefined: grpc.StaticMethod
ui/protocol/ui_grpc.pb.go:59:41: undefined: grpc.StaticMethod
ui/protocol/ui_grpc.pb.go:69:41: undefined: grpc.StaticMethod
ui/protocol/ui_grpc.pb.go:79:41: undefined: grpc.StaticMethod
ui/protocol/ui_grpc.pb.go:111:41: undefined: grpc.StaticMethod
make: *** [Makefile:21: opensnitchd] Error 1

[MrNanook]

Same here on Manjaro Unstable (opensnitch-git on AUR).

[gustavo-iniguez-goya]

hey @UffeJakobsen @MrNanook ,

could you install v1.3.0 of the grpc generator , recompile the proto + daemon and see if it works?

~ $ cd opensnitch-git/
~ $ go install google.golang.org/grpc/cmd/protoc-gen-go-grpc@v1.3.0
~ $ cd proto/; make clean; make
~ $ cd daemon; go build -o opensnitchd .

[JCallicoat]

could you install v1.3.0 of the grpc generator , recompile the proto + daemon and see if it works?

I had the same problem on arch. That fixes the build for me. I added a comment on the AUR package referencing this work around.

[UffeJakobsen]

The temporary workaround also works here

[gustavo-iniguez-goya]

hey folks,

I've realized that with latest AUR package, if the daemon starts before the GUI, it never establishes the connection. I'm not sure if this is due to generating the protobuffers with latest versions.

The connection is in IDLE state and closing the connection in this situation solves the problem. But I wanted to know if you're also having this issue.

On the other hand, is any of you filtering connections by md5 checksums? it's only available on the opensnitch-git AUR package (Preferences -> Nodes -> Rules -> [ ] Enable checksums verification), just to know if it works fine or if it causes any problem.

[UffeJakobsen]

On the other hand, is any of you filtering connections by md5 checksums? it's only available on the opensnitch-git AUR package (Preferences -> Nodes -> Rules -> [ ] Enable checksums verification), just to know if it works fine or if it causes any problem.

FYI: I'm the original creator of this issue - and I have actually setup my preferences to verify md5 checksums...

[gustavo-iniguez-goya]

thank you for the feedback @UffeJakobsen :+1:

did anyone notice the issue connecting with the GUI? does the daemon connect to the GUI as expected on your systems?

[MrNanook]

@gustavo-iniguez-goya daemon does connect with GUI as expected here (manjaro unstable).