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53 lines
1.8 KiB
C
53 lines
1.8 KiB
C
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/* Copyright (c) 2017, The Tor Project, Inc. */
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/* See LICENSE for licensing information */
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/**
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* \file hs_control.c
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* \brief Contains control port event related code.
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**/
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#include "or.h"
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#include "control.h"
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#include "hs_common.h"
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#include "hs_control.h"
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#include "nodelist.h"
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/* Send on the control port the "HS_DESC REQUESTED [...]" event.
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*
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* The onion_pk is the onion service public key, base64_blinded_pk is the
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* base64 encoded blinded key for the service and hsdir_rs is the routerstatus
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* object of the HSDir that this request is for. */
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void
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hs_control_desc_event_requested(const ed25519_public_key_t *onion_pk,
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const char *base64_blinded_pk,
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const routerstatus_t *hsdir_rs)
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{
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char onion_address[HS_SERVICE_ADDR_LEN_BASE32 + 1];
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const uint8_t *hsdir_index;
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const node_t *hsdir_node;
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tor_assert(onion_pk);
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tor_assert(base64_blinded_pk);
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tor_assert(hsdir_rs);
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hs_build_address(onion_pk, HS_VERSION_THREE, onion_address);
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/* Get the node from the routerstatus object to get the HSDir index used for
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* this request. We can't have a routerstatus entry without a node and we
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* can't pick a node without an hsdir_index. */
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hsdir_node = node_get_by_id(hsdir_rs->identity_digest);
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tor_assert(hsdir_node);
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tor_assert(hsdir_node->hsdir_index);
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/* This is a fetch event. */
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hsdir_index = hsdir_node->hsdir_index->fetch;
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/* Trigger the event. */
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control_event_hs_descriptor_requested(onion_address, REND_NO_AUTH,
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hsdir_rs->identity_digest,
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base64_blinded_pk,
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hex_str((const char *) hsdir_index,
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DIGEST256_LEN));
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memwipe(onion_address, 0, sizeof(onion_address));
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}
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