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Diffstat (limited to 'spec/dir-spec/uploading-relay-documents.md')
| -rw-r--r-- | spec/dir-spec/uploading-relay-documents.md | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/spec/dir-spec/uploading-relay-documents.md b/spec/dir-spec/uploading-relay-documents.md new file mode 100644 index 0000000..da34943 --- /dev/null +++ b/spec/dir-spec/uploading-relay-documents.md @@ -0,0 +1,43 @@ +<a id="dir-spec.txt-2.1"></a> + +# Uploading server descriptors and extra-info documents + +ORs SHOULD generate a new server descriptor and a new extra-info +document whenever any of the following events have occurred: + +```text + - A period of time (18 hrs by default) has passed since the last + time a descriptor was generated. + + - A descriptor field other than bandwidth or uptime has changed. + + - Its uptime is less than 24h and bandwidth has changed by a factor of 2 + from the last time a descriptor was generated, and at least a given + interval of time (3 hours by default) has passed since then. + + - Its uptime has been reset (by restarting). + + - It receives a networkstatus consensus in which it is not listed. + + - It receives a networkstatus consensus in which it is listed + with the StaleDesc flag. + + [XXX this list is incomplete; see router_differences_are_cosmetic() + in routerlist.c for others] +``` + +ORs SHOULD NOT publish a new server descriptor or extra-info document +if none of the above events have occurred and not much time has passed +(12 hours by default). + +Tor versions older than 0.3.5.1-alpha ignore uptime when checking for +bandwidth changes. + +After generating a descriptor, ORs upload them to every directory +authority they know, by posting them (in order) to the URL + +http://<hostname:port>/tor/ + +Server descriptors may not exceed 20,000 bytes in length; extra-info +documents may not exceed 50,000 bytes in length. If they do, the +authorities SHOULD reject them. |