feat(vm): Support direct filesystem (#7058)

Signed-off-by: yusuke.koyoshi <yusuke.koyoshi@bizreach.co.jp>

Author: yusuke-koyoshi

go.mod

@@ -76,12 +76,12 @@ require (
 	github.com/liamg/jfather v0.0.7
 	github.com/liamg/memoryfs v1.6.0
 	github.com/magefile/mage v1.15.0
-	github.com/masahiro331/go-disk v0.0.0-20220919035250-c8da316f91ac
+	github.com/masahiro331/go-disk v0.0.0-20240625071113-56c933208fee
 	github.com/masahiro331/go-ebs-file v0.0.0-20240112135404-d5fbb1d46323
 	github.com/masahiro331/go-ext4-filesystem v0.0.0-20231208112839-4339555a0cd4
 	github.com/masahiro331/go-mvn-version v0.0.0-20210429150710-d3157d602a08
 	github.com/masahiro331/go-vmdk-parser v0.0.0-20221225061455-612096e4bbbd
-	github.com/masahiro331/go-xfs-filesystem v0.0.0-20230608043311-a335f4599b70
+	github.com/masahiro331/go-xfs-filesystem v0.0.0-20231205045356-1b22259a6c44
 	github.com/mattn/go-shellwords v1.0.12
 	github.com/microsoft/go-rustaudit v0.0.0-20220808201409-204dfee52032
 	github.com/mitchellh/go-homedir v1.1.0

go.sum

@@ -1022,8 +1022,8 @@ github.com/markbates/oncer v1.0.0 h1:E83IaVAHygyndzPimgUYJjbshhDTALZyXxvk9FOlQRY
 github.com/markbates/oncer v1.0.0/go.mod h1:Z59JA581E9GP6w96jai+TGqafHPW+cPfRxz2aSZ0mcI=
 github.com/markbates/safe v1.0.1 h1:yjZkbvRM6IzKj9tlu/zMJLS0n/V351OZWRnF3QfaUxI=
 github.com/markbates/safe v1.0.1/go.mod h1:nAqgmRi7cY2nqMc92/bSEeQA+R4OheNU2T1kNSCBdG0=
-github.com/masahiro331/go-disk v0.0.0-20220919035250-c8da316f91ac h1:QyRucnGOLHJag1eB9CtuZwZk+/LpvTSYr5mnFLLFlgA=
-github.com/masahiro331/go-disk v0.0.0-20220919035250-c8da316f91ac/go.mod h1:J7Vb0sf0JzOhT0uHTeCqO6dqP/ELVcQvQ6yQ/56ZRGw=
+github.com/masahiro331/go-disk v0.0.0-20240625071113-56c933208fee h1:cgm8mE25x5XXX2oyvJDlyJ72K+rDu/4ZCYce2worNb8=
+github.com/masahiro331/go-disk v0.0.0-20240625071113-56c933208fee/go.mod h1:rojbW5tVhH1cuVYFKZS+QX+VGXK45JVsRO+jW92kkKM=
 github.com/masahiro331/go-ebs-file v0.0.0-20240112135404-d5fbb1d46323 h1:uQubA711SeYStvStohMLrdvRTTohdPHrEPFzerLcY9I=
 github.com/masahiro331/go-ebs-file v0.0.0-20240112135404-d5fbb1d46323/go.mod h1:OdtzwqTtu49Gh5RFkNEU1SbcihIuVTtUipwHflqxckE=
 github.com/masahiro331/go-ext4-filesystem v0.0.0-20231208112839-4339555a0cd4 h1:uHO44vOunB0oEtk+r8ifBbFOD0mr6+fmoyFNCgLE66k=
@@ -1032,8 +1032,8 @@ github.com/masahiro331/go-mvn-version v0.0.0-20210429150710-d3157d602a08 h1:AevU
 github.com/masahiro331/go-mvn-version v0.0.0-20210429150710-d3157d602a08/go.mod h1:JOkBRrE1HvgTyjk6diFtNGgr8XJMtIfiBzkL5krqzVk=
 github.com/masahiro331/go-vmdk-parser v0.0.0-20221225061455-612096e4bbbd h1:Y30EzvuoVp97b0unb/GOFXzBUKRXZXUN2e0wYmvC+ic=
 github.com/masahiro331/go-vmdk-parser v0.0.0-20221225061455-612096e4bbbd/go.mod h1:5f7mCJGW9cJb8SDn3z8qodGxpMCOo8d/2nls/tiwRrw=
-github.com/masahiro331/go-xfs-filesystem v0.0.0-20230608043311-a335f4599b70 h1:X6W6raTo07X0q4pvSI/68Pj/Ic4iIU2CfQU65OH0Zhc=
-github.com/masahiro331/go-xfs-filesystem v0.0.0-20230608043311-a335f4599b70/go.mod h1:QKBZqdn6teT0LK3QhAf3K6xakItd1LonOShOEC44idQ=
+github.com/masahiro331/go-xfs-filesystem v0.0.0-20231205045356-1b22259a6c44 h1:VmSjn0UCyfXUNdePDr7uM/uZTnGSp+mKD5+cYkEoLx4=
+github.com/masahiro331/go-xfs-filesystem v0.0.0-20231205045356-1b22259a6c44/go.mod h1:QKBZqdn6teT0LK3QhAf3K6xakItd1LonOShOEC44idQ=
 github.com/mattn/go-colorable v0.0.9/go.mod h1:9vuHe8Xs5qXnSaW/c/ABM9alt+Vo+STaOChaDxuIBZU=
 github.com/mattn/go-colorable v0.1.4/go.mod h1:U0ppj6V5qS13XJ6of8GYAs25YV2eR4EVcfRqFIhoBtE=
 github.com/mattn/go-colorable v0.1.7/go.mod h1:u6P/XSegPjTcexA+o6vUJrdnUu04hMope9wVRipJSqc=

pkg/fanal/walker/vm.go

@@ -9,9 +9,12 @@ import (
 	"strings"
 
 	"github.com/masahiro331/go-disk"
+	diskFs "github.com/masahiro331/go-disk/fs"
 	"github.com/masahiro331/go-disk/gpt"
 	"github.com/masahiro331/go-disk/mbr"
 	"github.com/masahiro331/go-disk/types"
+	"github.com/masahiro331/go-ext4-filesystem/ext4"
+	"github.com/masahiro331/go-xfs-filesystem/xfs"
 	"golang.org/x/xerrors"
 
 	"github.com/aquasecurity/trivy/pkg/fanal/vm/filesystem"
@@ -29,6 +32,11 @@ var requiredDiskName = []string{
 	"3",        // Common image name
 }
 
+var checkFsFuncs = []diskFs.CheckFsFunc{
+	ext4.Check,
+	xfs.Check,
+}
+
 func AppendPermitDiskName(s ...string) {
 	requiredDiskName = append(requiredDiskName, s...)
 }
@@ -53,7 +61,7 @@ func (w *VM) Walk(vreader *io.SectionReader, root string, opt Option, fn WalkFun
 	// This function will be called on each file.
 	w.analyzeFn = fn
 
-	driver, err := disk.NewDriver(vreader)
+	driver, err := disk.NewDriver(vreader, checkFsFuncs...)
 	if err != nil {
 		return xerrors.Errorf("failed to new disk driver: %w", err)
 	}