[or-cvs] r9971: More proposal-104 stuff: add most of the code for authoritie (in tor/trunk: . doc src/or)
nickm at seul.org
nickm at seul.org
Mon Apr 16 18:39:45 UTC 2007
Author: nickm
Date: 2007-04-16 14:39:39 -0400 (Mon, 16 Apr 2007)
New Revision: 9971
Modified:
tor/trunk/
tor/trunk/doc/TODO
tor/trunk/src/or/directory.c
tor/trunk/src/or/dirserv.c
tor/trunk/src/or/or.h
tor/trunk/src/or/router.c
tor/trunk/src/or/routerlist.c
Log:
r12406 at catbus: nickm | 2007-04-16 14:39:33 -0400
More proposal-104 stuff: add most of the code for authorities to accept and serve extra-info documents. The back-end to store the things is missing.
Property changes on: tor/trunk
___________________________________________________________________
svk:merge ticket from /tor/trunk [r12406] on 8246c3cf-6607-4228-993b-4d95d33730f1
Modified: tor/trunk/doc/TODO
===================================================================
--- tor/trunk/doc/TODO 2007-04-16 17:55:08 UTC (rev 9970)
+++ tor/trunk/doc/TODO 2007-04-16 18:39:39 UTC (rev 9971)
@@ -56,9 +56,12 @@
- 101: Voting on the Tor Directory System
. 104: Long and Short Router Descriptors (by Jun 1)
. Finalize proposal
- - Implement parsing for extra-info documents; have authorities
- accept them and serve them from specified URLs
- - Have routers generate and upload extra-info documents.
+ o Implement parsing for extra-info documents
+ o Have routers generate extra-info documents.
+ . Have have authorities accept them and serve them from specified URLs
+ o Implement directory-protocol side.
+ - Implement storage.
+ - Have routers upload extra-info documents.
- Implement option to download and cache extra-info documents.
- Drop bandwidth history from router-descriptors
- 105: Version negotiation for the Tor protocol (finalize by Jun 1)
Modified: tor/trunk/src/or/directory.c
===================================================================
--- tor/trunk/src/or/directory.c 2007-04-16 17:55:08 UTC (rev 9970)
+++ tor/trunk/src/or/directory.c 2007-04-16 18:39:39 UTC (rev 9971)
@@ -1683,31 +1683,34 @@
return 0;
}
- if (!strcmpstart(url,"/tor/server/")) {
+ if (!strcmpstart(url,"/tor/server/") ||
+ !strcmpstart(url,"/tor/extra/")) {
size_t url_len = strlen(url);
int deflated = !strcmp(url+url_len-2, ".z");
int res;
const char *msg;
const char *request_type = NULL;
int cache_lifetime = 0;
+ int is_extra = !strcmpstart(url,"/tor/extra/");
if (deflated)
url[url_len-2] = '\0';
+ url += is_extra ? strlen("/tor/extra/") : strlen("/tor/server/");
conn->fingerprint_stack = smartlist_create();
res = dirserv_get_routerdesc_fingerprints(conn->fingerprint_stack, url,
&msg);
- if (!strcmpstart(url, "/tor/server/fp/")) {
+ if (!strcmpstart(url, "fp/")) {
request_type = deflated?"/tor/server/fp.z":"/tor/server/fp";
if (smartlist_len(conn->fingerprint_stack) == 1)
cache_lifetime = ROUTERDESC_CACHE_LIFETIME;
- } else if (!strcmpstart(url, "/tor/server/authority")) {
+ } else if (!strcmpstart(url, "authority")) {
request_type = deflated?"/tor/server/authority.z":
"/tor/server/authority";
cache_lifetime = ROUTERDESC_CACHE_LIFETIME;
- } else if (!strcmpstart(url, "/tor/server/all")) {
+ } else if (!strcmpstart(url, "all")) {
request_type = deflated?"/tor/server/all.z":"/tor/server/all";
cache_lifetime = FULL_DIR_CACHE_LIFETIME;
- } else if (!strcmpstart(url, "/tor/server/d/")) {
+ } else if (!strcmpstart(url, "d/")) {
request_type = deflated?"/tor/server/d.z":"/tor/server/d";
if (smartlist_len(conn->fingerprint_stack) == 1)
cache_lifetime = ROUTERDESC_BY_DIGEST_CACHE_LIFETIME;
@@ -1715,10 +1718,12 @@
request_type = "/tor/server/?";
}
(void) request_type; /* usable for note_request. */
- if (!strcmpstart(url, "/tor/server/d/"))
- conn->dir_spool_src = DIR_SPOOL_SERVER_BY_DIGEST;
+ if (!strcmpstart(url, "d/"))
+ conn->dir_spool_src =
+ is_extra ? DIR_SPOOL_EXTRA_BY_DIGEST : DIR_SPOOL_SERVER_BY_DIGEST;
else
- conn->dir_spool_src = DIR_SPOOL_SERVER_BY_FP;
+ conn->dir_spool_src =
+ is_extra ? DIR_SPOOL_EXTRA_BY_FP : DIR_SPOOL_SERVER_BY_FP;
tor_free(url);
if (res < 0)
write_http_status_line(conn, 404, msg);
Modified: tor/trunk/src/or/dirserv.c
===================================================================
--- tor/trunk/src/or/dirserv.c 2007-04-16 17:55:08 UTC (rev 9970)
+++ tor/trunk/src/or/dirserv.c 2007-04-16 18:39:39 UTC (rev 9971)
@@ -537,9 +537,37 @@
{
int r;
routerinfo_t *ri = NULL, *ri_old = NULL;
+ extrainfo_t *ei = NULL;
tor_assert(msg);
*msg = NULL;
+ desc = eat_whitespace(desc);
+ if (!strcmpstart(desc, "extra-info")) {
+ /* It's an extra-info thingie. */
+ routerlist_t *rl = router_get_routerlist();
+ ei = extrainfo_parse_entry_from_string(desc, NULL, 1, rl->identity_map);
+ if (!ei) {
+ log_warn(LD_DIRSERV, "Couldn't parse uploaded extra-info descriptor");
+ *msg = "Rejected: couldn't parse extra-info descriptor";
+ return -2;
+ }
+ ri = router_get_by_digest(ei->cache_info.identity_digest);
+ if (!ri) {
+ *msg = "No corresponding router descriptor for extra-info descriptor";
+ extrainfo_free(ei);
+ return -1;
+ }
+ if (routerinfo_incompatible_with_extrainfo(ri, ei)) {
+ *msg = "Router descriptor incompatible with extra-info descriptor";
+ extrainfo_free(ei);
+ return -1;
+ }
+ /* XXXX020 Eventually, we should store this. For now, we'll just
+ * discard it. */
+ extrainfo_free(ei);
+ return 2;
+ }
+
/* Check: is the descriptor syntactically valid? */
ri = router_parse_entry_from_string(desc, NULL, 1);
if (!ri) {
@@ -1815,8 +1843,9 @@
}
/** As dirserv_get_routerdescs(), but instead of getting signed_descriptor_t
- * pointers, adds copies of digests to fps_out. For a /tor/server/d/ request,
- * adds descriptor digests; for other requests, adds identity digests.
+ * pointers, adds copies of digests to fps_out, and doesn't use the
+ * /tor/server/ prefix. For a /d/ request, adds descriptor digests; for other
+ * requests, adds identity digests.
*/
int
dirserv_get_routerdesc_fingerprints(smartlist_t *fps_out, const char *key,
@@ -1824,21 +1853,21 @@
{
*msg = NULL;
- if (!strcmp(key, "/tor/server/all")) {
+ if (!strcmp(key, "all")) {
routerlist_t *rl = router_get_routerlist();
SMARTLIST_FOREACH(rl->routers, routerinfo_t *, r,
smartlist_add(fps_out,
tor_memdup(r->cache_info.identity_digest, DIGEST_LEN)));
- } else if (!strcmp(key, "/tor/server/authority")) {
+ } else if (!strcmp(key, "authority")) {
routerinfo_t *ri = router_get_my_routerinfo();
if (ri)
smartlist_add(fps_out,
tor_memdup(ri->cache_info.identity_digest, DIGEST_LEN));
- } else if (!strcmpstart(key, "/tor/server/d/")) {
- key += strlen("/tor/server/d/");
+ } else if (!strcmpstart(key, "d/")) {
+ key += strlen("d/");
dir_split_resource_into_fingerprints(key, fps_out, NULL, 1, 1);
- } else if (!strcmpstart(key, "/tor/server/fp/")) {
- key += strlen("/tor/server/fp/");
+ } else if (!strcmpstart(key, "fp/")) {
+ key += strlen("fp/");
dir_split_resource_into_fingerprints(key, fps_out, NULL, 1, 1);
} else {
*msg = "Key not recognized";
@@ -2065,7 +2094,11 @@
static int
connection_dirserv_add_servers_to_outbuf(dir_connection_t *conn)
{
- int by_fp = conn->dir_spool_src == DIR_SPOOL_SERVER_BY_FP;
+ int by_fp = (conn->dir_spool_src == DIR_SPOOL_SERVER_BY_FP ||
+ conn->dir_spool_src == DIR_SPOOL_EXTRA_BY_FP);
+ int extra = (conn->dir_spool_src == DIR_SPOOL_EXTRA_BY_FP ||
+ conn->dir_spool_src == DIR_SPOOL_EXTRA_BY_DIGEST);
+ time_t publish_cutoff = time(NULL)-ROUTER_MAX_AGE_TO_PUBLISH;
while (smartlist_len(conn->fingerprint_stack) &&
buf_datalen(conn->_base.outbuf) < DIRSERV_BUFFER_MIN) {
@@ -2074,15 +2107,25 @@
signed_descriptor_t *sd = NULL;
if (by_fp) {
if (router_digest_is_me(fp)) {
- sd = &(router_get_my_routerinfo()->cache_info);
+ if (extra)
+ sd = &(router_get_my_extrainfo()->cache_info);
+ else
+ sd = &(router_get_my_routerinfo()->cache_info);
} else {
routerinfo_t *ri = router_get_by_digest(fp);
if (ri &&
- ri->cache_info.published_on > time(NULL)-ROUTER_MAX_AGE_TO_PUBLISH)
- sd = &ri->cache_info;
+ ri->cache_info.published_on > publish_cutoff) {
+ if (extra) {
+ sd = extrainfo_get_by_descriptor_digest(ri->extra_info_digest);
+ } else {
+ sd = &ri->cache_info;
+ }
+ }
}
- } else
- sd = router_get_by_descriptor_digest(fp);
+ } else {
+ sd = extra ? extrainfo_get_by_descriptor_digest(fp)
+ : router_get_by_descriptor_digest(fp);
+ }
tor_free(fp);
if (!sd)
continue;
@@ -2216,6 +2259,8 @@
return 0;
switch (conn->dir_spool_src) {
+ case DIR_SPOOL_EXTRA_BY_DIGEST:
+ case DIR_SPOOL_EXTRA_BY_FP:
case DIR_SPOOL_SERVER_BY_DIGEST:
case DIR_SPOOL_SERVER_BY_FP:
return connection_dirserv_add_servers_to_outbuf(conn);
Modified: tor/trunk/src/or/or.h
===================================================================
--- tor/trunk/src/or/or.h 2007-04-16 17:55:08 UTC (rev 9970)
+++ tor/trunk/src/or/or.h 2007-04-16 18:39:39 UTC (rev 9971)
@@ -907,6 +907,7 @@
/** What exactly are we spooling right now? */
enum {
DIR_SPOOL_NONE=0, DIR_SPOOL_SERVER_BY_DIGEST, DIR_SPOOL_SERVER_BY_FP,
+ DIR_SPOOL_EXTRA_BY_DIGEST, DIR_SPOOL_EXTRA_BY_FP,
DIR_SPOOL_CACHED_DIR, DIR_SPOOL_NETWORKSTATUS
} dir_spool_src : 3;
/** List of fingerprints for networkstatuses or desriptors to be spooled. */
@@ -2892,7 +2893,7 @@
void router_new_address_suggestion(const char *suggestion);
int router_compare_to_my_exit_policy(edge_connection_t *conn);
routerinfo_t *router_get_my_routerinfo(void);
-const char *router_get_my_extrainfo(void);
+extrainfo_t *router_get_my_extrainfo(void);
const char *router_get_my_descriptor(void);
int router_digest_is_me(const char *digest);
int router_is_me(routerinfo_t *router);
@@ -2993,6 +2994,7 @@
routerinfo_t *router_get_by_hexdigest(const char *hexdigest);
routerinfo_t *router_get_by_digest(const char *digest);
signed_descriptor_t *router_get_by_descriptor_digest(const char *digest);
+signed_descriptor_t *extrainfo_get_by_descriptor_digest(const char *digest);
const char *signed_descriptor_get_body(signed_descriptor_t *desc);
int router_digest_version_as_new_as(const char *digest, const char *cutoff);
int router_digest_is_trusted_dir(const char *digest);
Modified: tor/trunk/src/or/router.c
===================================================================
--- tor/trunk/src/or/router.c 2007-04-16 17:55:08 UTC (rev 9970)
+++ tor/trunk/src/or/router.c 2007-04-16 18:39:39 UTC (rev 9971)
@@ -815,14 +815,14 @@
}
/** DOCDOC */
-const char *
+extrainfo_t *
router_get_my_extrainfo(void)
{
if (!server_mode(get_options()))
return NULL;
if (router_rebuild_descriptor(0))
return NULL;
- return desc_extrainfo->cache_info.signed_descriptor_body;
+ return desc_extrainfo;
}
/** A list of nicknames that we've warned about including in our family
Modified: tor/trunk/src/or/routerlist.c
===================================================================
--- tor/trunk/src/or/routerlist.c 2007-04-16 17:55:08 UTC (rev 9970)
+++ tor/trunk/src/or/routerlist.c 2007-04-16 18:39:39 UTC (rev 9971)
@@ -1442,6 +1442,15 @@
return digestmap_get(routerlist->desc_digest_map, digest);
}
+/** DOCDOC */
+signed_descriptor_t *
+extrainfo_get_by_descriptor_digest(const char *digest)
+{
+ /* XXXX020 implement me. */
+ (void)digest;
+ return NULL;
+}
+
/** Return a pointer to the signed textual representation of a descriptor.
* The returned string is not guaranteed to be NUL-terminated: the string's
* length will be in desc-\>signed_descriptor_len. */
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