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-rw-r--r--src/or/control.c43
1 files changed, 39 insertions, 4 deletions
diff --git a/src/or/control.c b/src/or/control.c
index 6a44730f2f..f852659983 100644
--- a/src/or/control.c
+++ b/src/or/control.c
@@ -74,7 +74,8 @@
#define EVENT_NEWCONSENSUS 0x0016
#define EVENT_BUILDTIMEOUT_SET 0x0017
#define EVENT_SIGNAL 0x0018
-#define _EVENT_MAX 0x0018
+#define EVENT_CONF_CHANGED 0x0019
+#define _EVENT_MAX 0x0019
/* If _EVENT_MAX ever hits 0x0020, we need to make the mask wider. */
/** Bitfield: The bit 1&lt;&lt;e is set if <b>any</b> open control
@@ -502,8 +503,8 @@ connection_printf_to_buf(control_connection_t *conn, const char *format, ...)
va_end(ap);
if (len < 0) {
- log_warn(LD_BUG, "Unable to format string for controller.");
- return;
+ log_err(LD_BUG, "Unable to format string for controller.");
+ tor_assert(0);
}
connection_write_to_buf(buf, (size_t)len, TO_CONN(conn));
@@ -946,6 +947,7 @@ static const struct control_event_t control_event_table[] = {
{ EVENT_NEWCONSENSUS, "NEWCONSENSUS" },
{ EVENT_BUILDTIMEOUT_SET, "BUILDTIMEOUT_SET" },
{ EVENT_SIGNAL, "SIGNAL" },
+ { EVENT_CONF_CHANGED, "CONF_CHANGED"},
{ 0, NULL },
};
@@ -3569,7 +3571,7 @@ control_event_logmsg(int severity, uint32_t domain, const char *msg)
severity <= LOG_NOTICE) {
char *esc = esc_for_log(msg);
++disable_log_messages;
- control_event_general_status(severity, "BUG REASON=\"%s\"", esc);
+ control_event_general_status(severity, "BUG REASON=%s", esc);
--disable_log_messages;
tor_free(esc);
}
@@ -3998,6 +4000,39 @@ control_event_guard(const char *nickname, const char *digest,
return 0;
}
+/** Called when a configuration option changes. This is generally triggered
+ * by SETCONF requests and RELOAD/SIGHUP signals. The <b>elements</b> is
+ * a smartlist_t containing (key, value, ...) pairs in sequence.
+ * <b>value</b> can be NULL. */
+int
+control_event_conf_changed(smartlist_t *elements)
+{
+ int i;
+ char *result;
+ smartlist_t *lines;
+ if (!EVENT_IS_INTERESTING(EVENT_CONF_CHANGED) ||
+ smartlist_len(elements) == 0) {
+ return 0;
+ }
+ lines = smartlist_create();
+ for (i = 0; i < smartlist_len(elements); i += 2) {
+ char *k = smartlist_get(elements, i);
+ char *v = smartlist_get(elements, i+1);
+ if (v == NULL) {
+ smartlist_asprintf_add(lines, "650-%s", k);
+ } else {
+ smartlist_asprintf_add(lines, "650-%s=%s", k, v);
+ }
+ }
+ result = smartlist_join_strings(lines, "\r\n", 0, NULL);
+ send_control_event(EVENT_CONF_CHANGED, 0,
+ "650-CONF_CHANGED\r\n%s\r\n650 OK\r\n", result);
+ tor_free(result);
+ SMARTLIST_FOREACH(lines, char *, cp, tor_free(cp));
+ smartlist_free(lines);
+ return 0;
+}
+
/** Helper: Return a newly allocated string containing a path to the
* file where we store our authentication cookie. */
static char *