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49 lines
1.5 KiB
C
49 lines
1.5 KiB
C
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/* Copyright (c) 2001 Matej Pfajfar.
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* Copyright (c) 2001-2004, Roger Dingledine.
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* Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
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* Copyright (c) 2007-2018, The Tor Project, Inc. */
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/* See LICENSE for licensing information */
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#ifndef TOR_NODEFAMILY_ST_H
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#define TOR_NODEFAMILY_ST_H
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#include "orconfig.h"
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#include "ht.h"
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struct nodefamily_t {
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/** Entry for this nodefamily_t within the hashtable. */
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HT_ENTRY(nodefamily_t) ht_ent;
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/** Reference count. (The hashtable is not treated as a reference */
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uint32_t refcnt;
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/** Number of items encoded in <b>family_members</b>. */
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uint32_t n_members;
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/* A byte-array encoding the members of this family. We encode each member
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* as one byte to indicate whether it's a nickname or a fingerprint, plus
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* DIGEST_LEN bytes of data. The entries are lexically sorted.
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*/
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uint8_t family_members[FLEXIBLE_ARRAY_MEMBER];
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};
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#define NODEFAMILY_MEMBER_LEN (1+DIGEST_LEN)
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/** Tag byte, indicates that the following bytes are a NUL-padded nickname.
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*/
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#define NODEFAMILY_BY_NICKNAME 0
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/** Tag byte, indicates that the following bytes are a RSA1024 SHA1 ID.
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*/
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#define NODEFAMILY_BY_RSA_ID 1
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/**
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* Number of bytes to allocate in the array for a nodefamily_t with N members.
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**/
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#define NODEFAMILY_ARRAY_SIZE(n) \
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((n) * NODEFAMILY_MEMBER_LEN)
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/**
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* Pointer to the i'th member of <b>nf</b>, as encoded.
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*/
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#define NODEFAMILY_MEMBER_PTR(nf, i) \
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(&((nf)->family_members[(i) * NODEFAMILY_MEMBER_LEN]))
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#endif
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