diff --git a/.gitmodules b/.gitmodules new file mode 100644 index 0000000..51123d9 --- /dev/null +++ b/.gitmodules @@ -0,0 +1,4 @@ +[submodule "deps/agent-plugins-grpc"] + path = deps/agent-plugins-grpc + url = git@github.com:deepfence/agent-plugins-grpc.git + branch = add-pcap diff --git a/Makefile b/Makefile index 719f9e9..c6431cd 100644 --- a/Makefile +++ b/Makefile @@ -13,9 +13,12 @@ ifeq ($(RELEASE),1) LDFLAGS += -s -w endif -.PHONY: all build docker-bin docker-image test +.PHONY: all build docker-bin docker-image test localinit -all: build +all: proto build + +localinit: + $(PWD)/bootstrap.sh build: go build -tags '$(TAGS)' --ldflags '$(LDFLAGS)' -o packetstreamer ./main.go @@ -35,3 +38,13 @@ docker-test: test: go test -tags '$(TAGS)' ./... + +clean: + -rm ./packetstreamer + -rm ./deps/agent-plugins-grpc/proto/*.go + -rm -r $(PWD)/proto + +proto: ./deps/agent-plugins-grpc/proto/*.proto + (cd ./deps/agent-plugins-grpc && make go) + -mkdir $(PWD)/proto + cp ./deps/agent-plugins-grpc/proto/*.go $(PWD)/proto diff --git a/README.md b/README.md index 7f1ae1c..f3ca900 100644 --- a/README.md +++ b/README.md @@ -33,7 +33,7 @@ little performance impact on the remote hosts. PacketStreamer sensors can be run on bare-metal servers, on Docker hosts, and on Kubernetes nodes. The PacketStreamer receiver accepts network traffic from multiple sensors, -collecting it into a single, central `pcap` file. You can then process the +collecting it into a single, central `pcap` file. You can then process the pcap file or live feed the traffic to the tooling of your choice, such as `Zeek`, `Wireshark` `Suricata`, or as a live stream for Machine Learning models. @@ -54,16 +54,17 @@ network data from multiple machines for central logging and analysis. For full instructions, refer to the [PacketStreamer Documentation](https://deepfence.github.io/PacketStreamer/). You will need to install the golang toolchain and `libpcap-dev` before building PacketStreamer. - + ```shell script # Pre-requisites (Ubuntu): sudo apt install golang-go libpcap-dev git clone https://github.com/deepfence/PacketStreamer.git cd PacketStreamer/ +make localinit make ``` Run a PacketStreamer receiver, listening on port **8081** and writing pcap output to **/tmp/dump_file** (see [receiver.yaml](contrib/config/receiver.yaml)): - + ```shell script ./packetstreamer receiver --config ./contrib/config/receiver.yaml ``` @@ -79,7 +80,7 @@ cp ./contrib/config/sensor-local.yaml ./contrib/config/sensor.yaml ./packetstreamer sensor --config ./contrib/config/sensor.yaml ``` - + ## Who uses PacketStreamer? * Deepfence [ThreatStryker](https://deepfence.io/threatstryker/) uses diff --git a/bootstrap.sh b/bootstrap.sh new file mode 100755 index 0000000..a302111 --- /dev/null +++ b/bootstrap.sh @@ -0,0 +1 @@ +git submodule update --init --remote --recursive ./deps/agent-plugins-grpc/ diff --git a/contrib/config/sensor-agent.yaml b/contrib/config/sensor-agent.yaml new file mode 100644 index 0000000..debf826 --- /dev/null +++ b/contrib/config/sensor-agent.yaml @@ -0,0 +1,5 @@ +output: + plugins: + agent: + socket_path: /tmp/agent.sock +pcapMode: all diff --git a/deps/agent-plugins-grpc b/deps/agent-plugins-grpc new file mode 160000 index 0000000..a94c8f6 --- /dev/null +++ b/deps/agent-plugins-grpc @@ -0,0 +1 @@ +Subproject commit a94c8f68ade147e22c30057d8c0d7e9355cea9e7 diff --git a/go.mod b/go.mod index 7d392f3..82334f5 100644 --- a/go.mod +++ b/go.mod @@ -16,6 +16,13 @@ require ( gopkg.in/yaml.v3 v3.0.1 ) +require ( + github.com/golang/protobuf v1.5.2 // indirect + golang.org/x/text v0.3.6 // indirect + google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013 // indirect + google.golang.org/protobuf v1.27.1 // indirect +) + require ( github.com/aws/aws-sdk-go-v2/aws/protocol/eventstream v1.4.1 // indirect github.com/aws/aws-sdk-go-v2/credentials v1.11.2 // indirect @@ -35,8 +42,9 @@ require ( github.com/miekg/dns v1.1.25 // indirect github.com/pierrec/lz4/v4 v4.1.14 // indirect github.com/spf13/pflag v1.0.5 // indirect - golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550 // indirect + golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9 // indirect golang.org/x/net v0.0.0-20211209124913-491a49abca63 // indirect golang.org/x/sys v0.0.0-20211210111614-af8b64212486 // indirect + google.golang.org/grpc v1.48.0 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 // indirect ) diff --git a/go.sum b/go.sum index 8f43e90..61cb14f 100644 --- a/go.sum +++ b/go.sum @@ -1,3 +1,7 @@ +cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= +cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= +github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU= +github.com/antihax/optional v1.0.0/go.mod h1:uupD/76wgC+ih3iEmQUL+0Ugr19nfwCT1kdvxnR2qWY= github.com/aws/aws-sdk-go-v2 v1.16.2/go.mod h1:ytwTPBG6fXTZLxxeeCCWj2/EMYp/xDUgX+OET6TLNNU= github.com/aws/aws-sdk-go-v2 v1.16.4 h1:swQTEQUyJF/UkEA94/Ga55miiKFoXmm/Zd67XHgmjSg= github.com/aws/aws-sdk-go-v2 v1.16.4/go.mod h1:ytwTPBG6fXTZLxxeeCCWj2/EMYp/xDUgX+OET6TLNNU= @@ -31,18 +35,59 @@ github.com/aws/aws-sdk-go-v2/service/sts v1.16.3 h1:cJGRyzCSVwZC7zZZ1xbx9m32UnrK github.com/aws/aws-sdk-go-v2/service/sts v1.16.3/go.mod h1:bfBj0iVmsUyUg4weDB4NxktD9rDGeKSVWnjTnwbx9b8= github.com/aws/smithy-go v1.11.2 h1:eG/N+CcUMAvsdffgMvjMKwfyDzIkjM6pfxMJ8Mzc6mE= github.com/aws/smithy-go v1.11.2/go.mod h1:3xHYmszWVx2c0kIwQeEVf9uSm4fYZt67FBJnwub1bgM= +github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU= +github.com/cespare/xxhash/v2 v2.1.1/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs= +github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw= +github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGXZJjfX53e64911xZQV5JYwmTeXPW+k8Sc= +github.com/cncf/udpa/go v0.0.0-20201120205902-5459f2c99403/go.mod h1:WmhPx2Nbnhtbo57+VJT5O0JRkEi1Wbu0z5j0R8u5Hbk= +github.com/cncf/udpa/go v0.0.0-20210930031921-04548b0d99d4/go.mod h1:6pvJx4me5XPnfI9Z40ddWsdw2W/uZgQLFXToKeRcDiI= +github.com/cncf/xds/go v0.0.0-20210922020428-25de7278fc84/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs= +github.com/cncf/xds/go v0.0.0-20211001041855-01bcc9b48dfe/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs= +github.com/cncf/xds/go v0.0.0-20211011173535-cb28da3451f1/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs= github.com/cpuguy83/go-md2man/v2 v2.0.1/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o= github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c= github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= +github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4= +github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4= +github.com/envoyproxy/go-control-plane v0.9.4/go.mod h1:6rpuAdCZL397s3pYoYcLgu1mIlRU8Am5FuJP05cCM98= +github.com/envoyproxy/go-control-plane v0.9.9-0.20201210154907-fd9021fe5dad/go.mod h1:cXg6YxExXjJnVBQHBLXeUAgxn2UodCpnH306RInaBQk= +github.com/envoyproxy/go-control-plane v0.10.2-0.20220325020618-49ff273808a1/go.mod h1:KJwIaB5Mv44NWtYuAOFCVOjcI94vtpEz2JU/D2v6IjE= +github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c= github.com/foxcpp/go-mockdns v1.0.0 h1:7jBqxd3WDWwi/6WhDvacvH1XsN3rOLXyHM1uhvIx6FI= github.com/foxcpp/go-mockdns v1.0.0/go.mod h1:lgRN6+KxQBawyIghpnl5CezHFGS9VLzvtVlwxvzXTQ4= +github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04= +github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q= +github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A= +github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U= +github.com/golang/protobuf v1.3.2/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U= +github.com/golang/protobuf v1.3.3/go.mod h1:vzj43D7+SQXF/4pzW/hwtAqwc6iTitCiVSaWz5lYuqw= +github.com/golang/protobuf v1.4.0-rc.1/go.mod h1:ceaxUfeHdC40wWswd/P6IGgMaK3YpKi5j83Wpe3EHw8= +github.com/golang/protobuf v1.4.0-rc.1.0.20200221234624-67d41d38c208/go.mod h1:xKAWHe0F5eneWXFV3EuXVDTCmh+JuBKY0li0aMyXATA= +github.com/golang/protobuf v1.4.0-rc.2/go.mod h1:LlEzMj4AhA7rCAGe4KMBDvJI+AwstrUpVNzEA03Pprs= +github.com/golang/protobuf v1.4.0-rc.4.0.20200313231945-b860323f09d0/go.mod h1:WU3c8KckQ9AFe+yFwt9sWVRKCVIyN9cPHBJSNnbL67w= +github.com/golang/protobuf v1.4.0/go.mod h1:jodUvKwWbYaEsadDk5Fwe5c77LiNKVO9IDvqG2KuDX0= +github.com/golang/protobuf v1.4.1/go.mod h1:U8fpvMrcmy5pZrNK1lt4xCsGvpyWQ/VVv6QDs8UjoX8= +github.com/golang/protobuf v1.4.2/go.mod h1:oDoupMAO8OvCJWAcko0GGGIgR6R6ocIYbsSw735rRwI= +github.com/golang/protobuf v1.4.3/go.mod h1:oDoupMAO8OvCJWAcko0GGGIgR6R6ocIYbsSw735rRwI= +github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk= +github.com/golang/protobuf v1.5.2 h1:ROPKBNFfQgOUMifHyP+KYbvpjbdoFNs+aK7DXlji0Tw= +github.com/golang/protobuf v1.5.2/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY= +github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M= +github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU= +github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU= +github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE= +github.com/google/go-cmp v0.5.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE= +github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE= +github.com/google/go-cmp v0.5.6/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE= github.com/google/go-cmp v0.5.7 h1:81/ik6ipDQS2aGcBfIN5dHDB36BwrStyeAQquSYCV4o= github.com/google/go-cmp v0.5.7/go.mod h1:n+brtR0CgQNWTVd5ZUFpTBC8YFBDLK/h/bpaJ8/DtOE= github.com/google/gopacket v1.1.19 h1:ves8RnFZPGiFnTS0uPQStjwru6uO6h+nlr9j6fL7kF8= github.com/google/gopacket v1.1.19/go.mod h1:iJ8V8n6KS+z2U1A8pUwu8bW5SyEMkXJB8Yo/Vo+TKTo= +github.com/google/uuid v1.1.2/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo= github.com/google/uuid v1.3.0 h1:t6JiXgmwXMjEs8VusXIJk2BXHsn+wx8BZdTaoZ5fu7I= github.com/google/uuid v1.3.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo= +github.com/grpc-ecosystem/grpc-gateway v1.16.0/go.mod h1:BDjrQk3hbvj6Nolgz8mAMFbcEtjT1g+wF4CSlocrBnw= github.com/inconshreveable/mousetrap v1.0.0 h1:Z8tu5sraLXCXIcARxBp/8cbvlwVa7Z1NHg9XEKhtSvM= github.com/inconshreveable/mousetrap v1.0.0/go.mod h1:PxqpIevigyE2G7u3NXJIT2ANytuPF1OarO4DADm73n8= github.com/inhies/go-bytesize v0.0.0-20210819104631-275770b98743 h1:X3Xxno5Ji8idrNiUoFc7QyXpqhSYlDRYQmc7mlpMBzU= @@ -62,6 +107,8 @@ github.com/pierrec/lz4/v4 v4.1.14 h1:+fL8AQEZtz/ijeNnpduH0bROTu0O3NZAlPjQxGn8LwE github.com/pierrec/lz4/v4 v4.1.14/go.mod h1:gZWDp/Ze/IJXGXf23ltt2EXimqmTUXEy0GFuRQyBid4= github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM= github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4= +github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA= +github.com/rogpeppe/fastuuid v1.2.0/go.mod h1:jVj6XXZzXRy/MSR5jhDC/2q6DgLz+nrA6LYCDYWNEvQ= github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM= github.com/segmentio/kafka-go v0.4.32 h1:Ohr+9E+kDv/Ld2UPJN9hnKZRd2qgiqCmI8v2e1qlfLM= github.com/segmentio/kafka-go v0.4.32/go.mod h1:JAPPIiY3MQIwVHj64CWOP0LsFFfQ7H0w69kuoxnMIS0= @@ -70,52 +117,114 @@ github.com/spf13/cobra v1.4.0/go.mod h1:Wo4iy3BUC+X2Fybo0PDqwJIv3dNRiZLHQymsfxlB github.com/spf13/pflag v1.0.5 h1:iy+VFUOCP1a+8yFto/drg2CJ5u0yRoB7fZw3DKv/JXA= github.com/spf13/pflag v1.0.5/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg= github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME= +github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA= +github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg= github.com/stretchr/testify v1.7.1 h1:5TQK59W5E3v0r2duFAb7P95B6hEeOyEnHRa8MjYSMTY= github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg= github.com/xdg/scram v0.0.0-20180814205039-7eeb5667e42c h1:u40Z8hqBAAQyv+vATcGgV0YCnDjqSL7/q/JyPhhJSPk= github.com/xdg/scram 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v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4= diff --git a/pkg/config/config.go b/pkg/config/config.go index 2064dfb..7daf471 100644 --- a/pkg/config/config.go +++ b/pkg/config/config.go @@ -64,9 +64,14 @@ type KafkaPluginConfig struct { Timeout time.Duration `yaml:"timeout,omitempty"` } +type AgentPluginConfig struct { + SocketPath string `yaml:"socket_path"` +} + type PluginsConfig struct { S3 *S3PluginConfig Kafka *KafkaPluginConfig + Agent *AgentPluginConfig } type OutputConfig struct { @@ -75,6 +80,10 @@ type OutputConfig struct { Plugins *PluginsConfig } +type AgentOutputRawConfig struct { + SocketPath string `yaml:"socket_path"` +} + type S3OutputRawConfig struct { Bucket string Region string @@ -97,6 +106,7 @@ type KafkaOutputRawConfig struct { type PluginsRawConfig struct { S3 *S3OutputRawConfig Kafka *KafkaOutputRawConfig + Agent *AgentOutputRawConfig } type OutputRawConfig struct { @@ -166,6 +176,7 @@ func NewConfig(configFileName string) (*Config, error) { var s3Config *S3PluginConfig var kafkaConfig *KafkaPluginConfig + var agentConfig *AgentPluginConfig if rawConfig.Output != nil && rawConfig.Output.Plugins != nil { s3Config, err = populateS3Config(rawConfig) @@ -179,6 +190,12 @@ func NewConfig(configFileName string) (*Config, error) { if err != nil { return nil, err } + + agentConfig, err = populateAgentConfig(rawConfig) + + if err != nil { + return nil, err + } } compressBlockSize := 65 @@ -213,6 +230,7 @@ func NewConfig(configFileName string) (*Config, error) { Plugins: &PluginsConfig{ S3: s3Config, Kafka: kafkaConfig, + Agent: agentConfig, }, }, TLS: rawConfig.TLS, @@ -303,6 +321,16 @@ func populateKafkaConfig(rawConfig RawConfig) (*KafkaPluginConfig, error) { }, nil } +func populateAgentConfig(rawConfig RawConfig) (*AgentPluginConfig, error) { + if rawConfig.Output.Plugins.Agent == nil { + return nil, nil + } + + return &AgentPluginConfig{ + SocketPath: rawConfig.Output.Plugins.Agent.SocketPath, + }, nil +} + func populateS3Config(rawConfig RawConfig) (*S3PluginConfig, error) { if rawConfig.Output.Plugins.S3 == nil { return nil, nil diff --git a/pkg/config/sensor.go b/pkg/config/sensor.go index 4032a6c..0e5970f 100644 --- a/pkg/config/sensor.go +++ b/pkg/config/sensor.go @@ -12,7 +12,7 @@ var ( func ValidateSensorConfig(config *Config) error { if config.Output.File == nil && config.Output.Server == nil && (config.Output.Plugins == nil || - (config.Output.Plugins.S3 == nil && config.Output.Plugins.Kafka == nil)) { + (config.Output.Plugins.S3 == nil && config.Output.Plugins.Kafka == nil && config.Output.Plugins.Agent == nil)) { return ErrNoOutputConfigured } if config.Output.Server != nil && config.Output.Server.Port == nil { diff --git a/pkg/plugins/agent/agent.go b/pkg/plugins/agent/agent.go new file mode 100644 index 0000000..eb7634f --- /dev/null +++ b/pkg/plugins/agent/agent.go @@ -0,0 +1,75 @@ +package agent + +import ( + "context" + "errors" + "os" + "time" + + "github.com/deepfence/PacketStreamer/pkg/config" + pb "github.com/deepfence/PacketStreamer/proto" + "google.golang.org/grpc" +) + +const ( + SOCKET_RETRIES = 10 +) + +type Plugin struct { + client pb.PcapForwarderClient + stopChan chan struct{} +} + +func NewPlugin(conf *config.AgentPluginConfig) (*Plugin, error) { + + _, errw := os.Stat(conf.SocketPath) + tries := 1 + for errors.Is(errw, os.ErrNotExist) { + _, errw = os.Stat(conf.SocketPath) + time.Sleep(1 * time.Second) + if tries == SOCKET_RETRIES { + return nil, errors.New("No socket found") + } + tries += 1 + } + + conn, err := grpc.Dial("unix://"+conf.SocketPath, grpc.WithAuthority("dummy"), grpc.WithInsecure()) + if err != nil { + return nil, err + } + + return &Plugin{ + client: pb.NewPcapForwarderClient(conn), + stopChan: make(chan struct{}, 1), + }, nil +} + +func (p *Plugin) Start(ctx context.Context) (chan<- string, error) { + + stream, err := p.client.SendPackets(ctx) + + if err != nil { + return nil, err + } + + recvChan := make(chan string, 10) + + go func() { + loop: + for { + select { + case packet := <-recvChan: + stream.Send(&pb.Packet{Payload: []byte(packet)}) + case <-p.stopChan: + break loop + } + } + stream.CloseAndRecv() + }() + + return recvChan, nil +} + +func (p *Plugin) Stop() { + p.stopChan <- struct{}{} +} diff --git a/pkg/plugins/plugins.go b/pkg/plugins/plugins.go index e09d2b4..8453bb5 100644 --- a/pkg/plugins/plugins.go +++ b/pkg/plugins/plugins.go @@ -6,6 +6,7 @@ import ( "log" "github.com/deepfence/PacketStreamer/pkg/config" + "github.com/deepfence/PacketStreamer/pkg/plugins/agent" "github.com/deepfence/PacketStreamer/pkg/plugins/kafka" "github.com/deepfence/PacketStreamer/pkg/plugins/s3" ) @@ -43,6 +44,23 @@ func Start(ctx context.Context, config *config.Config) (chan<- string, error) { plugins = append(plugins, kafkaChan) } + if config.Output.Plugins.Agent != nil { + log.Println("Starting Agent plugin") + agentPlugin, err := agent.NewPlugin(config.Output.Plugins.Agent) + + if err != nil { + return nil, fmt.Errorf("error starting Agent plugin, %v", err) + } + + agentChan, err := agentPlugin.Start(ctx) + + if err != nil { + return nil, fmt.Errorf("error starting Agent plugin, %v", err) + } + + plugins = append(plugins, agentChan) + } + inputChan := make(chan string) go func() { defer func() { @@ -66,5 +84,5 @@ func Start(ctx context.Context, config *config.Config) (chan<- string, error) { } func pluginsAreDefined(pluginsConfig *config.PluginsConfig) bool { - return pluginsConfig != nil && (pluginsConfig.S3 != nil || pluginsConfig.Kafka != nil) + return pluginsConfig != nil && (pluginsConfig.Agent != nil || pluginsConfig.S3 != nil || pluginsConfig.Kafka != nil) }