/**
* config_alloc - allocate a new configuration
* @name: name of the config
*
* This function creates new &config structure, attaches a resource
* pool and a linear memory pool to it and makes it available for
* further use. Returns a pointer to the structure.
*/
struct config *
config_alloc(byte *name)
{
pool *p = rp_new(&root_pool, "Config");
linpool *l = lp_new(p, 4080);
struct config *c = lp_allocz(l, sizeof(struct config));
c->mrtdump_file = -1; /* Hack, this should be sysdep-specific */
c->pool = p;
cfg_mem = c->mem = l;
c->file_name = cfg_strdup(name);
c->load_time = now;
c->tf_base.fmt1 = c->tf_log.fmt1 = "%d-%m-%Y %T";
return c;
}
/*
* Public
*
* Extract a scalar as a string
*/
char *cfg_get_string(const struct cfg *self,
const char *name,
enum cfg_status *status)
{
char *str=NULL;
const struct cfg_field *field=NULL;
field = cfg_find(self, name, status);
if (*status==CFG_SUCCESS) {
if (CFG_TYPE_SCALAR != CFG_FIELD_TYPE(field)) {
*status = CFG_TYPE_ERROR;
} else {
if (0==CFG_FIELD_ARR_SIZE(field)) {
*status = CFG_EMPTY;
} else {
str = cfg_strdup( CFG_FIELD_GET_DATA(field, 0) );
}
}
}
return str;
}
/**
* config_alloc - allocate a new configuration
* @name: name of the config
*
* This function creates new &config structure, attaches a resource
* pool and a linear memory pool to it and makes it available for
* further use. Returns a pointer to the structure.
*/
struct config *
config_alloc(byte *name)
{
pool *p = rp_new(&root_pool, "Config");
linpool *l = lp_new(p, 4080);
struct config *c = lp_allocz(l, sizeof(struct config));
c->mrtdump_file = -1; /* Hack, this should be sysdep-specific */
c->pool = p;
cfg_mem = c->mem = l;
c->file_name = cfg_strdup(name);
c->load_time = now;
c->tf_route = c->tf_proto = (struct timeformat){"%T", "%F", 20*3600};
c->tf_base = c->tf_log = (struct timeformat){"%F %T", NULL, 0};
return c;
}
/**
* config_parse - parse a configuration
* @c: configuration
*
* config_parse() reads input by calling a hook function pointed to
* by @cf_read_hook and parses it according to the configuration
* grammar. It also calls all the preconfig and postconfig hooks
* before, resp. after parsing.
*
* Result: 1 if the config has been parsed successfully, 0 if any
* error has occurred (such as anybody calling cf_error()) and
* the @err_msg field has been set to the error message.
*/
int
config_parse(struct config *c)
{
DBG("Parsing configuration file `%s'\n", c->file_name);
new_config = c;
cfg_mem = c->mem;
if (setjmp(conf_jmpbuf))
return 0;
cf_lex_init(0, c);
sysdep_preconfig(c);
protos_preconfig(c);
rt_preconfig(c);
roa_preconfig(c);
cf_parse();
protos_postconfig(c);
if (EMPTY_LIST(c->protos))
cf_error("No protocol is specified in the config file");
#ifdef IPV6
if (!c->router_id)
cf_error("Router ID must be configured manually on IPv6 routers");
#endif
return 1;
}
/**
* cli_parse - parse a CLI command
* @c: temporary config structure
*
* cli_parse() is similar to config_parse(), but instead of a configuration,
* it parses a CLI command. See the CLI module for more information.
*/
int
cli_parse(struct config *c)
{
new_config = c;
c->sym_fallback = config->sym_hash;
cfg_mem = c->mem;
if (setjmp(conf_jmpbuf))
return 0;
cf_lex_init(1, c);
cf_parse();
return 1;
}
