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initial draft of config schema validation

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This commit is contained in:
Christian Giese
2023-03-30 19:00:41 +00:00
parent 8c84905cfa
commit 96e7218bc8
1 changed files with 59 additions and 1 deletions
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60
code/bngblaster/src/bbl_config.c
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@ -19,6 +19,38 @@ const char g_default_router_id[] = "10.10.10.10";
const char g_default_system_id[] = "0100.1001.0010";
const char g_default_area[] = "49.0001/24";
static bool
schema_validate(json_t *config, const char *section, const char *const attributes[], size_t len)
{
size_t i;
bool valid;
const char *key;
json_t *value = NULL;
/* Iterate over every key-value pair of object, running the block of code that follows
* each time with the proper values set to variables key and value. */
json_object_foreach(config, key, value) {
valid = false;
for(i = 0; i < len; i++) {
if (!strcmp(key, attributes[i])) {
valid = true;
break;
}
}
/* Ignore unknown attributes starting with "_". */
if (valid || key[0] == '_') {
continue;
}
/* Invalid configuration attribute. */
fprintf(stderr, "JSON config error: Invalid attribute name '%s' in '%s'\n", key, section);
return false;
}
return true;
}
static void
add_secondary_ipv4(uint32_t ipv4)
{
@ -1897,13 +1929,39 @@ json_parse_config(json_t *root)
ldp_config_s *ldp_config = NULL;
if(json_typeof(root) != JSON_OBJECT) {
fprintf(stderr, "JSON config error: Configuration root element must object\n");
fprintf(stderr, "JSON config error: Configuration root element must be an object\n");
return false;
}
const char *const root_schema[] = {
"interfaces", "sessions",
"ipoe", "pppoe", "ppp", "dhcp", "dhcpv6", "igmp",
"access-line", "access-line-profiles",
"traffic", "session-traffic", "streams",
"isis",
"bgp", "bgp-raw-update-files",
"ldp", "ldp-raw-update-files",
"l2tp-server"
};
if(!schema_validate(root, "root", root_schema,
sizeof(root_schema)/sizeof(root_schema[0]))) {
return false;
}
/* Sessions Configuration */
section = json_object_get(root, "sessions");
if(json_is_object(section)) {
const char *sessions_schema[] = {
"count", "max-outstanding", "start-rate", "stop-rate",
"iterate-vlan-outer", "start-delay", "autostart",
"reconnect", "monkey-autostart"
};
if(!schema_validate(section, "sessions", sessions_schema,
sizeof(sessions_schema)/sizeof(sessions_schema[0]))) {
return false;
}
value = json_object_get(section, "count");
if(json_is_number(value)) {
g_ctx->config.sessions = json_number_value(value);