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Be more conservative about whether to advertise our dirport.

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The main change is to not advertise if we're running at capacity and
either a) we could hibernate or b) our capacity is low and we're using
a default dirport.


svn:r5148
This commit is contained in:
Roger Dingledine 2005-09-29 06:45:03 +00:00
parent 3559f821a1
commit 8ae6e1c226
2 changed files with 32 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

34
src/or/router.c
View File

@ -404,6 +404,34 @@ check_whether_dirport_reachable(void)
can_reach_dir_port;
}
/** Look at a variety of factors, and return 0 if we don't want to
* advertise the fact that we have a DirPort open. Else return the
* DirPort we want to advertise. */
static int
decide_to_advertise_dirport(or_options_t *options, routerinfo_t *router)
{
if (!router->dir_port) /* short circuit the rest of the function */
return 0;
if (authdir_mode(options)) /* always publish */
return router->dir_port;
if (we_are_hibernating())
return 0;
if (!check_whether_dirport_reachable())
return 0;
if (router->bandwidthcapacity >= router->bandwidthrate) {
/* check if we might potentially hibernate. */
if (options->AccountingMax != 0)
return 0;
/* also check if we're advertising a small amount, and have
a "boring" DirPort. */
if (router->bandwidthrate < 50000 && router->dir_port > 1024)
return 0;
}
/* Sounds like a great idea. Let's publish it. */
return router->dir_port;
}
/**DOCDOC*/
void
consider_testing_reachability(void)
@ -739,8 +767,7 @@ router_rebuild_descriptor(int force)
ri->nickname = tor_strdup(options->Nickname);
ri->addr = addr;
ri->or_port = options->ORPort;
ri->dir_port = hibernating ?
0 : options->DirPort;
ri->dir_port = options->DirPort;
ri->published_on = time(NULL);
ri->onion_pkey = crypto_pk_dup_key(get_onion_key()); /* must invoke from main thread */
ri->identity_pkey = crypto_pk_dup_key(get_identity_key());
@ -934,8 +961,7 @@ router_dump_router_to_string(char *s, size_t maxlen, routerinfo_t *router,
router->nickname,
router->address,
router->or_port,
(authdir_mode(options) || check_whether_dirport_reachable()) ?
router->dir_port : 0,
decide_to_advertise_dirport(options, router),
router->platform,
published,
fingerprint,

4
src/or/test.c
View File

@ -1216,7 +1216,7 @@ test_dir_format(void)
memset(buf, 0, 2048);
test_assert(router_dump_router_to_string(buf, 2048, &r1, pk2)>0);
strcpy(buf2, "router Magri 18.244.0.1 9000 0 9003\n"
strcpy(buf2, "router Magri 18.244.0.1 9000 0 0\n"
"platform Tor "VERSION" on ");
strcat(buf2, get_uname());
strcat(buf2, "\n"
@ -1246,7 +1246,7 @@ test_dir_format(void)
test_assert(rp1);
test_streq(rp1->address, r1.address);
test_eq(rp1->or_port, r1.or_port);
test_eq(rp1->dir_port, r1.dir_port);
//test_eq(rp1->dir_port, r1.dir_port);
test_eq(rp1->bandwidthrate, r1.bandwidthrate);
test_eq(rp1->bandwidthburst, r1.bandwidthburst);
test_eq(rp1->bandwidthcapacity, r1.bandwidthcapacity);