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Prop210: Add router_digest_is_fallback_dir

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router_digest_is_fallback_dir returns 1 if the digest is in the
currently loaded list of fallback directories, and 0 otherwise.

This function is for future use.
This commit is contained in:
teor (Tim Wilson-Brown) 2015-12-11 05:49:23 +11:00
parent 2212530bf5
commit d72af1085a
2 changed files with 18 additions and 1 deletions
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18
src/or/routerlist.c
View File

@ -1362,7 +1362,9 @@ router_get_trusteddirserver_by_digest(const char *digest)
}
/** Return the dir_server_t for the fallback dirserver whose identity
* key hashes to <b>digest</b>, or NULL if no such authority is known.
* key hashes to <b>digest</b>, or NULL if no such fallback is in the list of
* fallback_dir_servers. (fallback_dir_servers is affected by the FallbackDir
* and UseDefaultFallbackDirs torrc options.)
*/
dir_server_t *
router_get_fallback_dirserver_by_digest(const char *digest)
@ -1370,6 +1372,9 @@ router_get_fallback_dirserver_by_digest(const char *digest)
if (!fallback_dir_servers)
return NULL;
if (!digest)
return NULL;
SMARTLIST_FOREACH(fallback_dir_servers, dir_server_t *, ds,
{
if (tor_memeq(ds->digest, digest, DIGEST_LEN))
@ -1379,6 +1384,17 @@ router_get_fallback_dirserver_by_digest(const char *digest)
return NULL;
}
/** Return 1 if any fallback dirserver's identity key hashes to <b>digest</b>,
* or 0 if no such fallback is in the list of fallback_dir_servers.
* (fallback_dir_servers is affected by the FallbackDir and
* UseDefaultFallbackDirs torrc options.)
*/
int
router_digest_is_fallback_dir(const char *digest)
{
return (router_get_fallback_dirserver_by_digest(digest) != NULL);
}
/** Return the dir_server_t for the directory authority whose
* v3 identity key hashes to <b>digest</b>, or NULL if no such authority
* is known.

1
src/or/routerlist.h
View File

@ -50,6 +50,7 @@ const routerstatus_t *router_pick_directory_server(dirinfo_type_t type,
dir_server_t *router_get_trusteddirserver_by_digest(const char *d);
dir_server_t *router_get_fallback_dirserver_by_digest(
const char *digest);
int router_digest_is_fallback_dir(const char *digest);
dir_server_t *trusteddirserver_get_by_v3_auth_digest(const char *d);
const routerstatus_t *router_pick_trusteddirserver(dirinfo_type_t type,
int flags);