diff options
| -rw-r--r-- | qom/object.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/qom/object.c b/qom/object.c index 95c0dc8285..654e1afaf2 100644 --- a/qom/object.c +++ b/qom/object.c @@ -138,9 +138,50 @@ static TypeImpl *type_new(const TypeInfo *info) return ti; } +static bool type_name_is_valid(const char *name) +{ + const int slen = strlen(name); + int plen; + + g_assert(slen > 1); + + /* + * Ideally, the name should start with a letter - however, we've got + * too many names starting with a digit already, so allow digits here, + * too (except '0' which is not used yet) + */ + if (!g_ascii_isalnum(name[0]) || name[0] == '0') { + return false; + } + + plen = strspn(name, "abcdefghijklmnopqrstuvwxyz" + "ABCDEFGHIJKLMNOPQRSTUVWXYZ" + "0123456789-_."); + + /* Allow some legacy names with '+' in it for compatibility reasons */ + if (name[plen] == '+') { + if (plen == 6 && g_str_has_prefix(name, "power")) { + /* Allow "power5+" and "power7+" CPU names*/ + return true; + } + if (plen >= 17 && g_str_has_prefix(name, "Sun-UltraSparc-I")) { + /* Allow "Sun-UltraSparc-IV+" and "Sun-UltraSparc-IIIi+" */ + return true; + } + } + + return plen == slen; +} + static TypeImpl *type_register_internal(const TypeInfo *info) { TypeImpl *ti; + + if (!type_name_is_valid(info->name)) { + fprintf(stderr, "Registering '%s' with illegal type name\n", info->name); + abort(); + } + ti = type_new(info); type_table_add(ti); |