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hs-v2: Disable version 2 HSPOST and HSFETCH command

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Part of #40476

Signed-off-by: David Goulet <dgoulet@torproject.org>
This commit is contained in:
David Goulet 2021-10-19 09:20:53 -04:00
parent a7d28da272
commit 044eadae65
1 changed files with 7 additions and 17 deletions
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24
src/feature/control/control_cmd.c
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@ -1443,10 +1443,8 @@ handle_control_hsfetch(control_connection_t *conn,
const control_cmd_args_t *args)
{
char digest[DIGEST_LEN], *desc_id = NULL;
char *desc_id = NULL;
smartlist_t *hsdirs = NULL;
static const char *v2_str = "v2-";
const size_t v2_str_len = strlen(v2_str);
rend_data_t *rend_query = NULL;
ed25519_public_key_t v3_pk;
uint32_t version;
@ -1454,20 +1452,7 @@ handle_control_hsfetch(control_connection_t *conn,
/* Extract the first argument (either HSAddress or DescID). */
const char *arg1 = smartlist_get(args->args, 0);
/* Test if it's an HS address without the .onion part. */
if (rend_valid_v2_service_id(arg1)) {
hsaddress = arg1;
version = HS_VERSION_TWO;
} else if (strcmpstart(arg1, v2_str) == 0 &&
rend_valid_descriptor_id(arg1 + v2_str_len) &&
base32_decode(digest, sizeof(digest), arg1 + v2_str_len,
REND_DESC_ID_V2_LEN_BASE32) ==
sizeof(digest)) {
/* We have a well formed version 2 descriptor ID. Keep the decoded value
* of the id. */
desc_id = digest;
version = HS_VERSION_TWO;
} else if (hs_address_is_valid(arg1)) {
if (hs_address_is_valid(arg1)) {
hsaddress = arg1;
version = HS_VERSION_THREE;
hs_parse_address(hsaddress, &v3_pk, NULL, NULL);
@ -1590,6 +1575,11 @@ handle_control_hspost(control_connection_t *conn,
goto done;
}
/* As for HSFETCH, we no longer support v2 on the network and so we stop
* right now. Code is not removed in order to minimize the merge forward
* conflicts. */
goto done;
/* From this point on, it is only v2. */
/* parse it. */