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Update the limits in max_dl_per_request for IPv6 address length

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This commit is contained in:
Fergus Dall
2016-01-13 06:49:56 +10:30
parent d062baac86
commit 91077d3aca
2 changed files with 13 additions and 3 deletions
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changes/17573
+3
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@@ -0,0 +1,3 @@
o Minor bigfixes (IPv6):
- Update the limits in max_dl_per_request for IPv6 address
length. Closes ticket 17573.
src/or/routerlist.c
+10 -3
View File
@@ -4440,13 +4440,20 @@ static int
max_dl_per_request(const or_options_t *options, int purpose)
{
/* Since squid does not like URLs >= 4096 bytes we limit it to 96.
* 4096 - strlen(http://255.255.255.255/tor/server/d/.z) == 4058
* 4058/41 (40 for the hash and 1 for the + that separates them) => 98
* 4096 - strlen(http://ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
* /tor/server/d/.z) == 4034
* 4034/41 (40 for the hash and 1 for the + that separates them) => 98
* So use 96 because it's a nice number.
*
* For microdescriptors, the calculation is
* 4096 - strlen(http://ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
* /tor/micro/d/.z) == 4035
* 4035/44 (43 for the hash and 1 for the - that separates them) => 91
* So use 90 because it's a nice number.
*/
int max = 96;
if (purpose == DIR_PURPOSE_FETCH_MICRODESC) {
max = 92;
max = 90;
}
/* If we're going to tunnel our connections, we can ask for a lot more
* in a request. */