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test(aa-log): Add AppArmor event test from the Apparmor lib upstream repo.

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This commit is contained in:
Alexandre Pujol 2022-05-02 17:14:42 +01:00
parent e5c4ca400c
commit c01da3f077
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2 changed files with 101 additions and 37 deletions
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6
cmd/aa-log/main.go
View file

@ -6,8 +6,10 @@ package main
import (
"bufio"
"encoding/hex"
"flag"
"fmt"
"io"
"os"
"path/filepath"
"regexp"
@ -80,7 +82,7 @@ func removeDuplicateLog(logs []string) []string {
}
// NewApparmorLogs return a new ApparmorLogs list of map from a log file
func NewApparmorLogs(file *os.File, profile string) AppArmorLogs {
func NewApparmorLogs(file io.Reader, profile string) AppArmorLogs {
log := ""
exp := "apparmor=(\"DENIED\"|\"ALLOWED\"|\"AUDIT\")"
if profile != "" {
@ -201,7 +203,7 @@ func aaLog(path string, profile string) error {
func init() {
flag.BoolVar(&help, "h", false, "Show this help message and exit.")
flag.StringVar(&path, "f", LogFile,
"Set a log`file` or a prefix to the default log file.")
"Set a log`file` or a suffix to the default log file.")
}
func main() {

132
cmd/aa-log/main_test.go
View file

@ -7,39 +7,10 @@ package main
import (
"os"
"reflect"
"strings"
"testing"
)
var refDnsmasq = AppArmorLogs{
{
"apparmor": "DENIED",
"profile": "dnsmasq",
"operation": "open",
"name": "/proc/sys/kernel/osrelease",
"comm": "dnsmasq",
"requested_mask": "r",
"denied_mask": "r",
},
{
"apparmor": "DENIED",
"profile": "dnsmasq",
"operation": "open",
"name": "/proc/1/environ",
"comm": "dnsmasq",
"requested_mask": "r",
"denied_mask": "r",
},
{
"apparmor": "DENIED",
"profile": "dnsmasq",
"operation": "open",
"name": "/proc/cmdline",
"comm": "dnsmasq",
"requested_mask": "r",
"denied_mask": "r",
},
}
var refKmod = AppArmorLogs{
{
"apparmor": "ALLOWED",
@ -67,8 +38,71 @@ var refMan = AppArmorLogs{
},
}
var refStringKmod = "\033[1;32mALLOWED\033[0m \033[34mkmod\033[0m \033[33mfile_inherit\033[0m comm=modprobe family=unix sock_type=stream protocol=0 requested_mask=\033[1;31m\"send receive\"\033[0m\n"
var refStringMan = "\033[1;32mALLOWED\033[0m \033[34mman\033[0m \033[33mexec\033[0m \033[35m/usr/bin/preconv\033[0m info=\"no new privs\" comm=man requested_mask=\033[1;31mx\033[0m denied_mask=\033[1;31mx\033[0m error=-1\n"
func TestAppArmorEvents(t *testing.T) {
tests := []struct {
name string
event string
want AppArmorLogs
}{
{
name: "event_audit_1",
event: `type=AVC msg=audit(1345027352.096:499): apparmor="ALLOWED" operation="rename_dest" parent=6974 profile="/usr/sbin/httpd2-prefork//vhost_foo" name=2F686F6D652F7777772F666F6F2E6261722E696E2F68747470646F63732F61707061726D6F722F696D616765732F746573742F696D61676520312E6A7067 pid=20143 comm="httpd2-prefork" requested_mask="wc" denied_mask="wc" fsuid=30 ouid=30`,
want: AppArmorLogs{
{
"apparmor": "ALLOWED",
"profile": "/usr/sbin/httpd2-prefork//vhost_foo",
"operation": "rename_dest",
"name": "/home/www/foo.bar.in/httpdocs/apparmor/images/test/image 1.jpg",
"comm": "httpd2-prefork",
"requested_mask": "wc",
"denied_mask": "wc",
"parent": "6974",
},
},
},
{
name: "event_audit_2",
event: `type=AVC msg=audit(1322614918.292:4376): apparmor="ALLOWED" operation="file_perm" parent=16001 profile=666F6F20626172 name="/home/foo/.bash_history" pid=17011 comm="bash" requested_mask="rw" denied_mask="rw" fsuid=0 ouid=1000`,
want: AppArmorLogs{
{
"apparmor": "ALLOWED",
"profile": "foo bar",
"operation": "file_perm",
"name": "/home/foo/.bash_history",
"comm": "bash",
"requested_mask": "rw",
"denied_mask": "rw",
"parent": "16001",
},
},
},
{
name: "disconnected_path",
event: `type=AVC msg=audit(1424425690.883:716630): apparmor="ALLOWED" operation="file_mmap" info="Failed name lookup - disconnected path" error=-13 profile="/sbin/klogd" name="var/run/nscd/passwd" pid=25333 comm="id" requested_mask="r" denied_mask="r" fsuid=1002 ouid=0`,
want: AppArmorLogs{
{
"apparmor": "ALLOWED",
"profile": "/sbin/klogd",
"operation": "file_mmap",
"name": "var/run/nscd/passwd",
"comm": "id",
"info": "Failed name lookup - disconnected path",
"requested_mask": "r",
"denied_mask": "r",
"error": "-13",
},
},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
file := strings.NewReader(tt.event)
if got := NewApparmorLogs(file, ""); !reflect.DeepEqual(got, tt.want) {
t.Errorf("NewApparmorLogs() = %v, want %v", got, tt.want)
}
})
}
}
func TestNewApparmorLogs(t *testing.T) {
tests := []struct {
@ -79,7 +113,35 @@ func TestNewApparmorLogs(t *testing.T) {
{
name: "dnsmasq",
path: "../../tests/audit.log",
want: refDnsmasq,
want: AppArmorLogs{
{
"apparmor": "DENIED",
"profile": "dnsmasq",
"operation": "open",
"name": "/proc/sys/kernel/osrelease",
"comm": "dnsmasq",
"requested_mask": "r",
"denied_mask": "r",
},
{
"apparmor": "DENIED",
"profile": "dnsmasq",
"operation": "open",
"name": "/proc/1/environ",
"comm": "dnsmasq",
"requested_mask": "r",
"denied_mask": "r",
},
{
"apparmor": "DENIED",
"profile": "dnsmasq",
"operation": "open",
"name": "/proc/cmdline",
"comm": "dnsmasq",
"requested_mask": "r",
"denied_mask": "r",
},
},
},
{
name: "kmod",
@ -111,12 +173,12 @@ func TestAppArmorLogs_String(t *testing.T) {
{
name: "kmod",
aaLogs: refKmod,
want: refStringKmod,
want: "\033[1;32mALLOWED\033[0m \033[34mkmod\033[0m \033[33mfile_inherit\033[0m comm=modprobe family=unix sock_type=stream protocol=0 requested_mask=\033[1;31m\"send receive\"\033[0m\n",
},
{
name: "man",
aaLogs: refMan,
want: refStringMan,
want: "\033[1;32mALLOWED\033[0m \033[34mman\033[0m \033[33mexec\033[0m \033[35m/usr/bin/preconv\033[0m info=\"no new privs\" comm=man requested_mask=\033[1;31mx\033[0m denied_mask=\033[1;31mx\033[0m error=-1\n",
},
}
for _, tt := range tests {