*/
#include "file.h"
-#include "filter.h"
#include "config.h"
+#include "str.h"
-struct config_t {
- A(filter_t) filters;
- A(filter_params_t) params;
- int entry_point;
-};
+#define config_param_register(Param)
+
+/* Filter to execute on "CONNECT"
+ */
+config_param_register("client_filter");
+
+/* Filter to execute on "MAIL FROM"
+ */
+config_param_register("sender_filter");
+
+/* Filter to execute on "RCPT TO"
+ */
+config_param_register("recipient_filter");
+
+/* Filter to execute on "DATA"
+ */
+config_param_register("data_filter");
+
+/* Filter to execute on "END-OF-DATA"
+ */
+config_param_register("end_of_data_filter");
+
+/* Filter to execute on "ETRN"
+ */
+config_param_register("etrn_filter");
+
+/* Filter to execute on "HELO"
+ */
+config_param_register("helo_filter");
+config_param_register("ehlo_filter");
+
+/* Filter to execute on "VRFY"
+ */
+config_param_register("verify_filter");
static inline config_t *config_new(void)
{
config_t *config = p_new(config_t, 1);
- config->entry_point = -1;
+ for (int i = 0 ; i < SMTP_count ; ++i) {
+ config->entry_points[i] = -1;
+ }
return config;
}
}
}
+
+static bool config_second_pass(config_t *config)
+{
+ bool ok = true;
+ if (config->filters.len > 0) {
+# define QSORT_TYPE filter_t
+# define QSORT_BASE config->filters.data
+# define QSORT_NELT config->filters.len
+# define QSORT_LT(a,b) strcmp(a->name, b->name) < 0
+# include "qsort.c"
+ }
+
+ foreach (filter_t *filter, config->filters) {
+ if (!filter_update_references(filter, &config->filters)) {
+ ok = false;
+ break;
+ }
+ }}
+ if (!ok) {
+ return false;
+ }
+
+ ok = false;
+ foreach (filter_param_t *param, config->params) {
+ switch (param->type) {
+#define CASE(Param, State) \
+ case ATK_ ## Param ## _FILTER: \
+ ok = true; \
+ config->entry_points[SMTP_ ## State] \
+ = filter_find_with_name(&config->filters, param->value); \
+ break;
+ CASE(CLIENT, CONNECT)
+ CASE(EHLO, EHLO)
+ CASE(HELO, HELO)
+ CASE(SENDER, MAIL)
+ CASE(RECIPIENT, RCPT)
+ CASE(DATA, DATA)
+ CASE(END_OF_DATA, END_OF_MESSAGE)
+ CASE(VERIFY, VRFY)
+ CASE(ETRN, ETRN)
+#undef CASE
+ default: break;
+ }
+ }}
+ array_deep_wipe(config->params, filter_params_wipe);
+
+ if (!ok) {
+ syslog(LOG_ERR, "no entry point defined");
+ }
+
+ return ok;
+}
+
config_t *config_read(const char *file)
{
config_t *config;
}
config = config_new();
+ filter_init(&filter);
linep = p = map.map;
#define READ_ERROR(Fmt, ...) \
read_param_value:
READ_BLANK(goto badeof);
READ_STRING("parameter value", value, value_len, ;);
- /* TODO: Insert parameter in the configuration.
- */
+ {
+ filter_param_t param;
+ param.type = param_tokenize(key, key_len);
+ if (param.type != ATK_UNKNOWN) {
+ param.value = m_strdup(value);
+ array_add(config->params, param);
+ }
+ }
goto read_section;
read_filter:
- filter_init(&filter);
filter_set_name(&filter, key, key_len);
READ_BLANK(goto badeof);
while (*p != '}') {
key + 3, filter.name);
}
} else {
- if (!filter_add_param(&filter, key, key_len, value, value_len)) {
- goto error;
- }
+ /* filter_add_param failure mean unknown type or unsupported type.
+ * this are non-fatal errors.
+ */
+ (void)filter_add_param(&filter, key, key_len, value, value_len);
}
}
READ_NEXT(;);
READ_ERROR("invalid filter %s", filter.name);
}
array_add(config->filters, filter);
+ filter_init(&filter);
goto read_section;
ok:
+ if (!config_second_pass(config)) {
+ goto error;
+ }
+ file_map_close(&map);
return config;
badeof:
syslog(LOG_ERR, "Unexpected end of file");
error:
+ if (filter.name) {
+ filter_wipe(&filter);
+ }
config_delete(&config);
+ file_map_close(&map);
return NULL;
}