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Add GETINFO network-liveness to control protocol

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This commit is contained in:
Andrea Shepard 2015-05-15 19:44:13 +00:00
parent dce9e915c7
commit 4cbc9c5313
1 changed files with 23 additions and 0 deletions
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23
src/or/control.c
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@ -179,6 +179,9 @@ static int write_stream_target_to_buf(entry_connection_t *conn, char *buf,
static void orconn_target_get_name(char *buf, size_t len,
or_connection_t *conn);
static int get_cached_network_liveness(void);
static void set_cached_network_liveness(int liveness);
/** Given a control event code for a message event, return the corresponding
* log severity. */
static INLINE int
@ -2207,6 +2210,24 @@ getinfo_helper_onions(control_connection_t *control_conn,
return 0;
}
/** Implementation helper for GETINFO: answers queries about network
* liveness. */
static int
getinfo_helper_liveness(control_connection_t *control_conn,
const char *question, char **answer,
const char **errmsg)
{
if (strcmp(question, "network-liveness") == 0) {
if (get_cached_network_liveness()) {
*answer = tor_strdup("up");
} else {
*answer = tor_strdup("down");
}
}
return 0;
}
/** Callback function for GETINFO: on a given control connection, try to
* answer the question <b>q</b> and store the newly-allocated answer in
* *<b>a</b>. If an internal error occurs, return -1 and optionally set
@ -2291,6 +2312,8 @@ static const getinfo_item_t getinfo_items[] = {
"Information about and from the ns consensus."),
ITEM("network-status", dir,
"Brief summary of router status (v1 directory format)"),
ITEM("network-liveness", liveness,
"Current opinion on whether the network is live"),
ITEM("circuit-status", events, "List of current circuits originating here."),
ITEM("stream-status", events,"List of current streams."),
ITEM("orconn-status", events, "A list of current OR connections."),