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aa-log: fix some renderring issues & improve speed.

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Alexandre Pujol 2021-11-23 20:12:10 +00:00
parent 7f7a2e5eda
commit 127b8b98ca
Failed to generate hash of commit
1 changed files with 27 additions and 10 deletions
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37
src/cmd/aa-log/main.go
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@ -31,6 +31,15 @@ type AppArmorLog map[string]string
// AppArmorLogs describes all apparmor log entries // AppArmorLogs describes all apparmor log entries
type AppArmorLogs []AppArmorLog type AppArmorLogs []AppArmorLog
var quoted bool
func splitQuoted(r rune) bool {
if r == '"' {
quoted = !quoted
}
return !quoted && r == ' '
}
func removeDuplicateLog(logs []string) []string { func removeDuplicateLog(logs []string) []string {
list := []string{} list := []string{}
keys := map[string]interface{}{"": true} keys := map[string]interface{}{"": true}
@ -45,7 +54,10 @@ func removeDuplicateLog(logs []string) []string {
func NewApparmorLogs(file *os.File, profile string) AppArmorLogs { func NewApparmorLogs(file *os.File, profile string) AppArmorLogs {
log := "" log := ""
exp := fmt.Sprintf("^.*apparmor=(\"DENIED\"|\"ALLOWED\").* profile=\"%s.*\".*$", profile) exp := "apparmor=(\"DENIED\"|\"ALLOWED\")"
if profile != "" {
exp = fmt.Sprintf(exp+".* profile=\"%s.*\"", profile)
}
isAppArmorLog := regexp.MustCompile(exp) isAppArmorLog := regexp.MustCompile(exp)
// Select Apparmor logs // Select Apparmor logs
@ -58,15 +70,14 @@ func NewApparmorLogs(file *os.File, profile string) AppArmorLogs {
} }
// Clean logs // Clean logs
cleanAppArmorLogs := []*regexp.Regexp{ regexAppArmorLogs := map[*regexp.Regexp]string{
regexp.MustCompile(`type=AVC msg=audit(.*): `), regexp.MustCompile(`type=AVC msg=audit(.*): apparmor`): "apparmor",
regexp.MustCompile(` fsuid.*`), regexp.MustCompile(` fsuid.*`): "",
regexp.MustCompile(`pid=.* comm`): "comm",
} }
for _, clean := range cleanAppArmorLogs { for regex, value := range regexAppArmorLogs {
log = clean.ReplaceAllLiteralString(log, "") log = regex.ReplaceAllLiteralString(log, value)
} }
replaceAppArmorLogs := regexp.MustCompile(`pid=.* comm`)
log = replaceAppArmorLogs.ReplaceAllLiteralString(log, "comm")
// Remove doublon in logs // Remove doublon in logs
logs := strings.Split(log, "\n") logs := strings.Split(log, "\n")
@ -75,12 +86,18 @@ func NewApparmorLogs(file *os.File, profile string) AppArmorLogs {
// Parse log into ApparmorLog struct // Parse log into ApparmorLog struct
aaLogs := make(AppArmorLogs, 0) aaLogs := make(AppArmorLogs, 0)
for _, log := range logs { for _, log := range logs {
tmp := strings.Split(log, " ") quoted = false
tmp := strings.FieldsFunc(log, splitQuoted)
aa := make(AppArmorLog) aa := make(AppArmorLog)
for _, item := range tmp { for _, item := range tmp {
kv := strings.Split(item, "=") kv := strings.Split(item, "=")
if len(kv) >= 2 { if len(kv) >= 2 {
aa[kv[0]] = strings.Trim(kv[1], `"`) if strings.Contains(kv[1], " ") {
aa[kv[0]] = kv[1]
} else {
aa[kv[0]] = strings.Trim(kv[1], `"`)
}
} }
} }
aaLogs = append(aaLogs, aa) aaLogs = append(aaLogs, aa)