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fix (plg_backend_nfs): edge case for groups size limit

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MickaelK 2024-05-01 18:02:24 +10:00
parent 861fe2ad4a
commit 1cfa0bb919
1 changed files with 12 additions and 1 deletions
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13
server/plugin/plg_backend_nfs/auth_helper.go
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@ -102,7 +102,15 @@ func extractFromEtcGroup(username string, primary uint32) []uint32 {
s := strings.Split(string(line), ":") s := strings.Split(string(line), ":")
if len(s) != 4 { if len(s) != 4 {
continue continue
} else if username != s[3] { }
userInGroup := false
for _, user := range strings.Split(s[3], ",") {
if user == username {
userInGroup = true
break
}
}
if userInGroup == false {
continue continue
} }
if gid, err := strconv.Atoi(s[2]); err == nil { if gid, err := strconv.Atoi(s[2]); err == nil {
@ -111,6 +119,9 @@ func extractFromEtcGroup(username string, primary uint32) []uint32 {
gids = append(gids, ugid) gids = append(gids, ugid)
} }
} }
if len(gids) > 16 { // limit of NFS in AUTH_UNIX
gids = gids[len(gids)-16 : len(gids)]
}
cacheForGroup.Set(map[string]string{"username": username}, gids) cacheForGroup.Set(map[string]string{"username": username}, gids)
} }
return gids return gids