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18bc162361
serval-dna/rhizome.h
Jeremy Lakeman 4aeb6545ad Refactor storage space measurement to expose new status API 
Change semantics of fake space limit to exclude used space, otherwise the result will keep changing on each call
2018-06-26 16:41:27 +09:30

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/*
Serval DNA Rhizome file distribution
Copyright (C) 2016-2018 Flinders University
Copyright (C) 2010-2014 Serval Project Inc.
Copyright (C) 2010 Paul Gardner-Stephen
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef __SERVAL_DNA__RHIZOME_H
#define __SERVAL_DNA__RHIZOME_H
#include "sqlite3.h"
#include "serval_types.h"
#include "rhizome_types.h"
#include "overlay_address.h"
#include "overlay_packet.h"
#include "fdqueue.h"
#include "os.h"
#include "serval_uuid.h"
#include "trigger.h"
#ifndef __RHIZOME_INLINE
# if __GNUC__ && !__GNUC_STDC_INLINE__
# define __RHIZOME_INLINE extern inline
# else
# define __RHIZOME_INLINE inline
# endif
#endif
// assumed to always be 2^n
#define RHIZOME_CRYPT_PAGE_SIZE 4096
extern time_ms_t rhizome_voice_timeout;
#define RHIZOME_IDLE_TIMEOUT 20000
#define RHIZOME_BAR_COMPARE_BYTES 31
#define RHIZOME_BAR_TTL_OFFSET 31
#define MAX_MANIFEST_VARS 256
#define MAX_MANIFEST_BYTES 8192
#define MAX_MANIFEST_FIELD_LABEL_LEN 80
typedef struct rhizome_manifest
{
/* CryptoSign key pair for this manifest. The public key is the Bundle ID
* (aka Manifest ID).
*/
sign_keypair_t keypair;
/* What do we know about keypair.private_key? (ie, bundle secret is known)
*/
enum { SECRET_UNKNOWN = 0, EXISTING_BUNDLE_ID, NEW_BUNDLE_ID } haveSecret;
/* Version of the manifest. Typically the number of milliseconds since 1970.
* A value of zero (0) means it has not been set yet.
*/
uint64_t version;
/* Payload is described by the offset of its tail (number of missing bytes
* before the first byte in the payload), its size (number of bytes) and the
* hash of its content. Bundle size = tail + filesize.
*/
uint64_t tail; // only valid if is_journal
uint64_t filesize;
rhizome_filehash_t filehash; // only valid if filesize != 0 and has_filehash
/* All the manifest fields in original order (the order affects the manifest
* hash which was used to sign the manifest, so the signature can only be
* checked if order is preserved).
*
* TODO: reduce to only unknown fields.
*
* TODO: store all vars and values as NUL terminated strings within
* manifestdata[], not malloc()/free() heap, to reduce memory fragmentation
* and allow manifest struct copying without string lifetime issues.
*/
unsigned short var_count;
const char *vars[MAX_MANIFEST_VARS];
const char *values[MAX_MANIFEST_VARS];
/* Parties who have signed this manifest (binary format, malloc(3)).
* Recognised signature types:
* 0x17 = crypto_sign_edwards25519sha512batch()
*/
unsigned short sig_count;
unsigned char *signatories[MAX_MANIFEST_VARS];
uint8_t signatureTypes[MAX_MANIFEST_VARS];
/* Set to non-NULL if a manifest has been parsed that cannot be fully
* understood by this version of Rhizome (probably from a future or a very
* old past version of Rhizome). During add (local injection), the manifest
* should not be imported. During extract (local decode) a warning or error
* message should be logged. Manifests marked as malformed are still
* transported, imported and exported normally, as long as their signature is
* valid.
*/
const char *malformed;
/* Set non-zero after variables have been packed and signature blocks
* appended. All fields below may not be valid until the manifest has been
* finalised.
*/
bool_t finalised:1;
/* Whether the manifest contains a signature that corresponds to the manifest
* id (ie public key).
*/
bool_t selfSigned:1;
/* Set if the ID field (keypair.public_key) contains a bundle ID.
*/
bool_t has_id:1;
/* Set if the filehash field contains a file hash.
*/
bool_t has_filehash:1;
/* Set if the tail field is valid, ie, the bundle is a journal.
*/
bool_t is_journal:1;
/* Set if the date field is valid, ie, the manifest contains a valid "date"
* field.
*/
bool_t has_date:1;
/* Set if the bundle_key field is valid, ie, the manifest contains a valid
* "BK" field.
*/
bool_t has_bundle_key:1;
/* Set if the sender and recipient fields are valid, ie, the manifest
* contains a valid "sender"/"recipient" field.
*/
bool_t has_sender:1;
bool_t has_recipient:1;
/* Local authorship. Useful for dividing bundle lists between "sent" and
* "inbox" views.
*/
enum rhizome_bundle_authorship {
ANONYMOUS = 0, // 'author' element is not valid
AUTHOR_NOT_CHECKED, // 'author' element is valid but not checked
AUTHENTICATION_ERROR, // author check failed, don't try again
AUTHOR_UNKNOWN, // author is not a local identity
AUTHOR_LOCAL, // author is in keyring (unlocked) but not verified
AUTHOR_IMPOSTOR, // author is a local identity but fails verification
AUTHOR_AUTHENTIC, // a local identity is the verified author
AUTHOR_REMOTE // the author of this bundle has signed it, but isn't in our keyring
} authorship;
/* Whether the paylaod is encrypted or not */
enum rhizome_manifest_crypt {
PAYLOAD_CRYPT_UNKNOWN = 0,
PAYLOAD_CLEAR,
PAYLOAD_ENCRYPTED
} payloadEncryption;
unsigned char payloadKey[RHIZOME_CRYPT_KEY_BYTES];
unsigned char payloadNonce[crypto_box_NONCEBYTES];
/* From the "date" field, if present. The number of milliseconds since 1970
* when the bundle was last modified.
*/
time_ms_t date;
/* From the "service" field, which should always be present.
*/
const char *service;
/* From the optional "name" field. NULL if there is no "name" field in the
* manifest.
*/
const char *name;
/* Bundle Key "BK" field from the manifest.
*/
rhizome_bk_t bundle_key;
/* Sender and recipient fields, if present in the manifest.
*/
sid_t sender;
sid_t recipient;
/* Local data, not encapsulated in the bundle. The ROWID of the SQLite
* MANIFESTS table row in which this manifest is stored. Zero if the
* manifest has not been stored yet.
*/
uint64_t rowid;
/* Local data, not encapsulated in the bundle. The system time of the most
* recent INSERT or UPDATE of the manifest into the store. Zero if the manifest
* has not been stored yet.
*/
time_ms_t inserttime;
/* Local data, not encapsulated in the bundle. The author of the manifest.
* A reference to a local keyring entry. Manifests not authored locally will
* have an ANY author (all zeros).
*/
sid_t author;
const struct keyring_identity *author_identity;
size_t manifest_body_bytes;
size_t manifest_all_bytes;
unsigned char manifestdata[MAX_MANIFEST_BYTES];
rhizome_filehash_t manifesthash;
} rhizome_manifest;
/* These setter functions (methods) are needed because the relevant attributes
* are stored in two places: in the vars[] array and in a dedicated struct
* element.
*
* TODO: refactor to remove the redundancy, possibly removing these setter
* functions as well.
*
* @author Andrew Bettison <andrew@servalproject.com>
*/
#define rhizome_manifest_set_id(m,v) _rhizome_manifest_set_id(__WHENCE__,(m),(v))
#define rhizome_manifest_set_version(m,v) _rhizome_manifest_set_version(__WHENCE__,(m),(v))
#define rhizome_manifest_del_version(m) _rhizome_manifest_del_version(__WHENCE__,(m))
#define rhizome_manifest_set_filesize(m,v) _rhizome_manifest_set_filesize(__WHENCE__,(m),(v))
#define rhizome_manifest_del_filesize(m) _rhizome_manifest_del_filesize(__WHENCE__,(m))
#define rhizome_manifest_set_filehash(m,v) _rhizome_manifest_set_filehash(__WHENCE__,(m),(v))
#define rhizome_manifest_del_filehash(m) _rhizome_manifest_del_filehash(__WHENCE__,(m))
#define rhizome_manifest_set_tail(m,v) _rhizome_manifest_set_tail(__WHENCE__,(m),(v))
#define rhizome_manifest_set_bundle_key(m,v) _rhizome_manifest_set_bundle_key(__WHENCE__,(m),(v))
#define rhizome_manifest_del_bundle_key(m) _rhizome_manifest_del_bundle_key(__WHENCE__,(m))
#define rhizome_manifest_set_service(m,v) _rhizome_manifest_set_service(__WHENCE__,(m),(v))
#define rhizome_manifest_del_service(m) _rhizome_manifest_del_service(__WHENCE__,(m))
#define rhizome_manifest_set_name(m,v) _rhizome_manifest_set_name(__WHENCE__,(m),(v))
#define rhizome_manifest_del_name(m) _rhizome_manifest_del_name(__WHENCE__,(m))
#define rhizome_manifest_set_date(m,v) _rhizome_manifest_set_date(__WHENCE__,(m),(v))
#define rhizome_manifest_del_date(m) _rhizome_manifest_del_date(__WHENCE__,(m))
#define rhizome_manifest_set_sender(m,v) _rhizome_manifest_set_sender(__WHENCE__,(m),(v))
#define rhizome_manifest_del_sender(m) _rhizome_manifest_del_sender(__WHENCE__,(m))
#define rhizome_manifest_set_recipient(m,v) _rhizome_manifest_set_recipient(__WHENCE__,(m),(v))
#define rhizome_manifest_del_recipient(m) _rhizome_manifest_del_recipient(__WHENCE__,(m))
#define rhizome_manifest_set_crypt(m,v) _rhizome_manifest_set_crypt(__WHENCE__,(m),(v))
#define rhizome_manifest_set_rowid(m,v) _rhizome_manifest_set_rowid(__WHENCE__,(m),(v))
#define rhizome_manifest_set_inserttime(m,v) _rhizome_manifest_set_inserttime(__WHENCE__,(m),(v))
#define rhizome_manifest_set_author(m,v) _rhizome_manifest_set_author(__WHENCE__,(m),NULL,(v))
#define rhizome_manifest_set_author_identity(m,v) _rhizome_manifest_set_author(__WHENCE__,(m),(v),NULL)
#define rhizome_manifest_del_author(m) _rhizome_manifest_del_author(__WHENCE__,(m))
void _rhizome_manifest_set_id(struct __sourceloc, rhizome_manifest *, const rhizome_bid_t *);
void _rhizome_manifest_set_version(struct __sourceloc, rhizome_manifest *, uint64_t);
void _rhizome_manifest_del_version(struct __sourceloc, rhizome_manifest *);
void _rhizome_manifest_set_filesize(struct __sourceloc, rhizome_manifest *, uint64_t);
void _rhizome_manifest_del_filesize(struct __sourceloc, rhizome_manifest *);
void _rhizome_manifest_set_filehash(struct __sourceloc, rhizome_manifest *, const rhizome_filehash_t *);
void _rhizome_manifest_del_filehash(struct __sourceloc, rhizome_manifest *);
void _rhizome_manifest_set_tail(struct __sourceloc, rhizome_manifest *, uint64_t);
void _rhizome_manifest_set_bundle_key(struct __sourceloc, rhizome_manifest *, const rhizome_bk_t *);
void _rhizome_manifest_del_bundle_key(struct __sourceloc, rhizome_manifest *);
void _rhizome_manifest_set_service(struct __sourceloc, rhizome_manifest *, const char *);
void _rhizome_manifest_del_service(struct __sourceloc, rhizome_manifest *);
void _rhizome_manifest_set_name(struct __sourceloc, rhizome_manifest *, const char *);
void _rhizome_manifest_del_name(struct __sourceloc, rhizome_manifest *);
void _rhizome_manifest_set_date(struct __sourceloc, rhizome_manifest *, time_ms_t);
void _rhizome_manifest_del_date(struct __sourceloc, rhizome_manifest *);
void _rhizome_manifest_set_sender(struct __sourceloc, rhizome_manifest *, const sid_t *);
void _rhizome_manifest_del_sender(struct __sourceloc, rhizome_manifest *);
void _rhizome_manifest_set_recipient(struct __sourceloc, rhizome_manifest *, const sid_t *);
void _rhizome_manifest_del_recipient(struct __sourceloc, rhizome_manifest *);
void _rhizome_manifest_set_crypt(struct __sourceloc, rhizome_manifest *, enum rhizome_manifest_crypt);
void _rhizome_manifest_set_rowid(struct __sourceloc, rhizome_manifest *, uint64_t);
void _rhizome_manifest_set_inserttime(struct __sourceloc, rhizome_manifest *, time_ms_t);
void _rhizome_manifest_set_author(struct __sourceloc, rhizome_manifest *, const struct keyring_identity *, const sid_t *);
void _rhizome_manifest_del_author(struct __sourceloc, rhizome_manifest *);
#define rhizome_manifest_overwrite(dstm,srcm) _rhizome_manifest_overwrite(__WHENCE__,(dstm),(srcm))
int _rhizome_manifest_overwrite(struct __sourceloc, rhizome_manifest *m, const rhizome_manifest *srcm);
enum rhizome_manifest_parse_status {
RHIZOME_MANIFEST_ERROR = -1, // unrecoverable error while constructing manifest
RHIZOME_MANIFEST_OK = 0, // field parsed ok; manifest updated
RHIZOME_MANIFEST_SYNTAX_ERROR = 1, // field label violates syntax
RHIZOME_MANIFEST_DUPLICATE_FIELD = 2, // field is already set in manifest
RHIZOME_MANIFEST_INVALID = 3, // core field value does not parse
RHIZOME_MANIFEST_MALFORMED = 4, // non-core field value does not parse
RHIZOME_MANIFEST_OVERFLOW = 5, // maximum field count exceeded
};
/* This structure represents a manifest field assignment as received by the API
* operations "add file" or "journal append" or any other operation that takes an
* existing manifest and modifies it to produce a new one.
*
* The 'label' and 'value' strings are pointer-length instead of NUL terminated,
* to allow them to refer directly to fragments of an existing, larger text
* without requiring the caller to allocate new strings to hold them.
*/
struct rhizome_manifest_field_assignment {
const char *label;
size_t labellen;
const char *value;
size_t valuelen;
};
int rhizome_manifest_field_label_is_valid(const char *field_label, size_t field_label_len);
int rhizome_manifest_field_value_is_valid(const char *field_value, size_t field_value_len);
enum rhizome_manifest_parse_status
rhizome_manifest_parse_field(rhizome_manifest *m,
const char *field_label, size_t field_label_len,
const char *field_value, size_t field_value_len);
int rhizome_manifest_remove_field(rhizome_manifest *, const char *field_label, size_t field_label_len);
/* Supported service identifiers. These go in the 'service' field of every
* manifest, and indicate which application must be used to process the bundle
* after it is received by Rhizome.
*/
#define RHIZOME_SERVICE_FILE "file"
#define RHIZOME_SERVICE_MESHMS "MeshMS1"
#define RHIZOME_SERVICE_MESHMS2 "MeshMS2"
#define RHIZOME_SERVICE_MESHMB "MeshMB1"
#define RHIZOME_SERVICE_PRIVATE "private"
extern int64_t rhizome_space;
int log2ll(uint64_t x);
int rhizome_configure();
int rhizome_enabled();
int rhizome_fetch_delay_ms();
#define RHIZOME_DEFAULT_PATH "rhizome"
#define RHIZOME_BLOB_SUBDIR "blob"
#define RHIZOME_HASH_SUBDIR "hash"
struct rhizome_database {
char dir_path[1024];
sqlite3 *db;
serval_uuid_t uuid;
};
extern __thread struct rhizome_database rhizome_database;
int rhizome_opendb();
int rhizome_close_db();
void verify_bundles();
typedef struct sqlite_retry_state {
unsigned int limit; // do not retry once elapsed >= limit
unsigned int sleep; // number of milliseconds to sleep between retries
unsigned int elapsed; // the total number of milliseconds elapsed doing retries
time_ms_t start; // the gettime_ms() value just after the current SQL query first returned BUSY
unsigned int busytries; // the number of times the current SQL query has returned BUSY
}
sqlite_retry_state;
sqlite_retry_state sqlite_retry_state_init(int serverLimit, int serverSleep, int otherLimit, int otherSleep);
#define SQLITE_RETRY_STATE_DEFAULT sqlite_retry_state_init(-1,-1,-1,-1)
struct rhizome_space_report {
uint64_t file_count;
uint64_t internal_bytes;
uint64_t external_bytes;
uint64_t db_page_size;
uint64_t db_total_pages;
uint64_t db_available_pages;
uint64_t content_bytes;
uint64_t content_limit_bytes;
uint64_t filesystem_bytes;
uint64_t filesystem_free_bytes;
};
struct rhizome_cleanup_report {
struct rhizome_space_report space_used;
unsigned deleted_stale_incoming_files;
unsigned deleted_expired_files;
unsigned deleted_orphan_files;
unsigned deleted_orphan_fileblobs;
unsigned deleted_orphan_manifests;
};
int rhizome_cleanup(struct rhizome_cleanup_report *report);
int rhizome_store_cleanup(struct rhizome_cleanup_report *report);
enum rhizome_payload_status rhizome_store_space_usage(struct rhizome_space_report *space);
void rhizome_vacuum_db(sqlite_retry_state *retry);
int rhizome_manifest_createid(rhizome_manifest *m);
struct rhizome_bundle_result rhizome_private_bundle(rhizome_manifest *m, const sign_keypair_t *keypair);
void rhizome_new_bundle_from_secret(rhizome_manifest *m, const rhizome_bk_t *bsk);
struct rhizome_manifest_summary {
rhizome_bid_t bid;
uint64_t version;
size_t body_len;
};
int rhizome_manifest_inspect(const char *buf, size_t len, struct rhizome_manifest_summary *summ);
enum rhizome_bundle_status {
RHIZOME_BUNDLE_STATUS_ERROR = -1,
RHIZOME_BUNDLE_STATUS_NEW = 0, // bundle is newer than store
RHIZOME_BUNDLE_STATUS_SAME = 1, // same version already in store
RHIZOME_BUNDLE_STATUS_DUPLICATE = 2, // equivalent bundle already in store
RHIZOME_BUNDLE_STATUS_OLD = 3, // newer version already in store
RHIZOME_BUNDLE_STATUS_INVALID = 4, // manifest is invalid
RHIZOME_BUNDLE_STATUS_FAKE = 5, // manifest signature not valid
RHIZOME_BUNDLE_STATUS_INCONSISTENT = 6, // manifest filesize/filehash does not match supplied payload
RHIZOME_BUNDLE_STATUS_NO_ROOM = 7, // doesn't fit; store may contain more important bundles
RHIZOME_BUNDLE_STATUS_READONLY = 8, // cannot modify manifest; secret unknown
RHIZOME_BUNDLE_STATUS_BUSY = 9, // the database is currently busy
RHIZOME_BUNDLE_STATUS_MANIFEST_TOO_BIG = 10, // manifest + signature exceeds size limit
};
// Useful for initialising a variable then checking later that it was set to a
// valid value (typically FATAL if not).
#define INVALID_RHIZOME_BUNDLE_STATUS ((enum rhizome_bundle_status)-2)
const char *rhizome_bundle_status_message(enum rhizome_bundle_status);
const char *rhizome_bundle_status_message_nonnull(enum rhizome_bundle_status);
// Encapsulate a status enum value and an optional text message to assist with
// diagnostics. Useful as a return value from functions that can fail in all
// sorts of ways.
struct rhizome_bundle_result {
enum rhizome_bundle_status status;
const char *message;
void (*release)(void *); // call r.release(r.message) before destroying r
};
#define INVALID_RHIZOME_BUNDLE_RESULT ((struct rhizome_bundle_result){ .status = INVALID_RHIZOME_BUNDLE_STATUS, .message = NULL, .release = NULL })
// Call this before discarding a struct rhizome_bundle_result.
void rhizome_bundle_result_free(struct rhizome_bundle_result *);
// Convenience functions for constructing a struct rhizome_bundle_result and
// logging errors and debug messages in the process.
struct rhizome_bundle_result _rhizome_bundle_result(struct __sourceloc, enum rhizome_bundle_status);
struct rhizome_bundle_result _rhizome_bundle_result_static(struct __sourceloc, enum rhizome_bundle_status, const char *);
struct rhizome_bundle_result _rhizome_bundle_result_strdup(struct __sourceloc, enum rhizome_bundle_status, const char *);
struct rhizome_bundle_result _rhizome_bundle_result_sprintf(struct __sourceloc, enum rhizome_bundle_status, const char *fmt, ...);
#define rhizome_bundle_result(status) _rhizome_bundle_result(__WHENCE__, status)
#define rhizome_bundle_result_static(status, str) _rhizome_bundle_result_static(__WHENCE__, status, str)
#define rhizome_bundle_result_strdup(status, str) _rhizome_bundle_result_strdup(__WHENCE__, status, str)
#define rhizome_bundle_result_sprintf(status, fmt, ...) _rhizome_bundle_result_sprintf(__WHENCE__, status, fmt, ## __VA_ARGS__);
// Functions for extracting information from a struct rhizome_bundle_result.
const char *rhizome_bundle_result_message(struct rhizome_bundle_result); // NULL only if invalid
const char *rhizome_bundle_result_message_nonnull(struct rhizome_bundle_result);
// Function to assist logging struct rhizome_bundle_result.
#define alloca_rhizome_bundle_result(result) strbuf_str(strbuf_append_rhizome_bundle_result(strbuf_alloca(50 + (result.message ? strlen(result.message) : 0)), result))
strbuf strbuf_append_rhizome_bundle_result(strbuf, struct rhizome_bundle_result);
enum rhizome_payload_status {
RHIZOME_PAYLOAD_STATUS_ERROR = -1,
RHIZOME_PAYLOAD_STATUS_EMPTY = 0, // payload is empty (zero length)
RHIZOME_PAYLOAD_STATUS_NEW = 1, // payload is not yet in store (added)
RHIZOME_PAYLOAD_STATUS_STORED = 2, // payload is already in store
RHIZOME_PAYLOAD_STATUS_WRONG_SIZE = 3, // payload's size does not match manifest
RHIZOME_PAYLOAD_STATUS_WRONG_HASH = 4, // payload's hash does not match manifest
RHIZOME_PAYLOAD_STATUS_CRYPTO_FAIL = 5, // cannot encrypt/decrypt (payload key unknown)
RHIZOME_PAYLOAD_STATUS_TOO_BIG = 6, // payload will never fit in our store
RHIZOME_PAYLOAD_STATUS_EVICTED = 7, // other payloads in our store are more important
RHIZOME_PAYLOAD_STATUS_BUSY = 8, // storage is currently busy, you may try again at a later time
};
// Useful for initialising a variable then checking later that it was set to a
// valid value (typically FATAL if not).
#define INVALID_RHIZOME_PAYLOAD_STATUS ((enum rhizome_payload_status)-2)
const char *rhizome_payload_status_message(enum rhizome_payload_status);
const char *rhizome_payload_status_message_nonnull(enum rhizome_payload_status);
int rhizome_write_manifest_file(rhizome_manifest *m, const char *filename, char append);
int rhizome_read_manifest_from_file(rhizome_manifest *m, const char *filename);
int rhizome_manifest_validate(rhizome_manifest *m);
const char *rhizome_manifest_validate_reason(rhizome_manifest *m);
int rhizome_manifest_parse(rhizome_manifest *m);
int rhizome_manifest_verify(rhizome_manifest *m);
void _rhizome_manifest_free(struct __sourceloc, rhizome_manifest *m);
#define rhizome_manifest_free(m) _rhizome_manifest_free(__WHENCE__,m)
rhizome_manifest *_rhizome_new_manifest(struct __sourceloc);
#define rhizome_new_manifest() _rhizome_new_manifest(__WHENCE__)
int rhizome_store_file(rhizome_manifest *m,const unsigned char *key);
int rhizome_add_field_assignment(struct rhizome_manifest_field_assignment *field, const char *arg, size_t arglen);
int rhizome_parse_field_assignments(struct rhizome_manifest_field_assignment *fields, unsigned argc, const char *const *args);
struct rhizome_bundle_result rhizome_apply_assignments(rhizome_manifest *m,
unsigned nassignments, const struct rhizome_manifest_field_assignment *assignments);
struct rhizome_bundle_result rhizome_manifest_add_file(int appending,
rhizome_manifest *m,
rhizome_manifest **mout,
const rhizome_bid_t *bid,
const rhizome_bk_t *bsk,
const sid_t *author,
const char *file_path,
unsigned nassignments,
const struct rhizome_manifest_field_assignment *assignments);
int rhizome_bundle_import_files(rhizome_manifest *m, rhizome_manifest **m_out, const char *manifest_path, const char *filepath, int zip_files);
int rhizome_manifest_set_name_from_path(rhizome_manifest *m, const char *filepath);
struct rhizome_bundle_result rhizome_fill_manifest(rhizome_manifest *m, const char *filepath);
int rhizome_apply_bundle_secret(rhizome_manifest *, const rhizome_bk_t *);
int rhizome_manifest_add_bundle_key(rhizome_manifest *);
int rhizome_lookup_author(rhizome_manifest *m);
void rhizome_authenticate_author(rhizome_manifest *m);
struct rhizome_bundle_result rhizome_manifest_finalise(rhizome_manifest *m, rhizome_manifest **m_out, int deduplicate);
enum rhizome_bundle_status rhizome_manifest_check_stored(rhizome_manifest *m, rhizome_manifest **m_out);
enum rhizome_bundle_status rhizome_add_manifest_to_store(rhizome_manifest *m_in, rhizome_manifest **m_out);
void rhizome_bytes_to_hex_upper(unsigned const char *in, char *out, int byteCount);
int rhizome_find_privatekey(rhizome_manifest *m);
__RHIZOME_INLINE int sqlite_code_ok(int code)
{
return code == SQLITE_OK || code == SQLITE_DONE || code == SQLITE_ROW;
}
__RHIZOME_INLINE int sqlite_code_busy(int code)
{
return code == SQLITE_BUSY || code == SQLITE_LOCKED;
}
int (*sqlite_set_tracefunc(int (*newfunc)()))();
int is_debug_rhizome();
int is_debug_rhizome_ads();
enum sqlbind_type {
INT = 1, // int value
INT_TOSTR, // int value
UINT_TOSTR, // unsigned value
INT64, // int64_t value
INT64_TOSTR, // int64_t value
UINT64_TOSTR, // uint64_t value
TEXT, // const char *text,
TEXT_LEN, // const char *text, int bytes
STATIC_TEXT, // const char *text,
STATIC_TEXT_LEN, // const char *text, int bytes
STATIC_BLOB, // const void *blob, int bytes
ZEROBLOB, // int bytes
SID_T, // const sid_t *sidp
RHIZOME_BID_T, // const rhizome_bid_t *bidp
RHIZOME_BAR_T, // const rhizome_bar_t *barp
RHIZOME_FILEHASH_T, // const rhizome_filehash_t *hashp
TOHEX, // const unsigned char *binary, unsigned bytes
TEXT_TOUPPER, // const char *text,
TEXT_LEN_TOUPPER, // const char *text, unsigned bytes
SERVAL_UUID_T, // const serval_uuid_t *uuidp
NUL = 1 << 8, // NUL (no arg) ; NUL|INT, ...
INDEX = 1 << 9, // INDEX|INT, int index, ...
NAMED = 1 << 10, // NAMED|INT, const char *label, ...
END = 1 << 11,
};
sqlite3_stmt *_sqlite_prepare(struct __sourceloc, int log_level, sqlite_retry_state *retry, const char *sqltext);
int _sqlite_bind(struct __sourceloc __whence, int log_level, sqlite_retry_state *retry, sqlite3_stmt *statement, ...);
int _sqlite_vbind(struct __sourceloc __whence, int log_level, sqlite_retry_state *retry, sqlite3_stmt *statement, va_list ap);
sqlite3_stmt *_sqlite_prepare_bind(struct __sourceloc, int log_level, sqlite_retry_state *retry, const char *sqltext, ...);
int _sqlite_retry(struct __sourceloc, sqlite_retry_state *retry, const char *action);
void _sqlite_retry_done(struct __sourceloc, sqlite_retry_state *retry, const char *action);
int _sqlite_step(struct __sourceloc, int log_level, sqlite_retry_state *retry, sqlite3_stmt *statement);
int _sqlite_exec_code(struct __sourceloc __whence, int log_level, sqlite_retry_state *retry, sqlite3_stmt *statement, int *rowcount);
int _sqlite_exec(struct __sourceloc __whence, int log_level, sqlite_retry_state *retry, sqlite3_stmt *statement);
int _sqlite_exec_void(struct __sourceloc, int log_level, const char *sqltext, ...);
int _sqlite_exec_void_retry(struct __sourceloc, int log_level, sqlite_retry_state *retry, const char *sqltext, ...);
int _sqlite_exec_changes_retry(struct __sourceloc __whence, int log_level, sqlite_retry_state *retry, int *rowcount, int *changes, const char *sqltext, ...);
int _sqlite_exec_uint64_retry(struct __sourceloc, sqlite_retry_state *retry, uint64_t *result, const char *sqltext, ...);
int _sqlite_exec_strbuf(struct __sourceloc, strbuf sb, const char *sqltext, ...);
int _sqlite_exec_strbuf_retry(struct __sourceloc, sqlite_retry_state *retry, strbuf sb, const char *sqltext, ...);
int _sqlite_vexec_strbuf_retry(struct __sourceloc, sqlite_retry_state *retry, strbuf sb, const char *sqltext, va_list ap);
int _sqlite_blob_open_retry(
struct __sourceloc,
int log_level,
sqlite_retry_state *retry,
const char *dbname,
const char *tablename,
const char *colname,
sqlite3_int64 rowid,
int flags,
sqlite3_blob **blobp
);
int _sqlite_blob_write_retry(
struct __sourceloc,
int log_level,
sqlite_retry_state *retry,
sqlite3_blob *blob,
const void *buf,
int len,
int offset
);
int _sqlite_blob_close(struct __sourceloc, int log_level, sqlite3_blob *blob);
// The 'arg' arguments in the following macros appear to be unnecessary, but
// they serve a very useful purpose, so don't remove them! They ensure that
// programmers do not forget the bind args, of which there must be at least
// one, even if it is only 'END' to make no bindings at all.
#define sqlite_prepare(rs,sql) _sqlite_prepare(__WHENCE__, LOG_LEVEL_ERROR, (rs), (sql))
#define sqlite_prepare_loglevel(ll,rs,sql) _sqlite_prepare(__WHENCE__, (ll), (rs), (sql))
#define sqlite_prepare_bind(rs,sql,arg,...) _sqlite_prepare_bind(__WHENCE__, LOG_LEVEL_ERROR, (rs), (sql), arg, ##__VA_ARGS__)
#define sqlite_prepare_bind_loglevel(ll,rs,sql,arg,...) _sqlite_prepare_bind(__WHENCE__, (ll), (rs), (sql), arg, ##__VA_ARGS__)
#define sqlite_bind(rs,stmt,arg,...) _sqlite_bind(__WHENCE__, LOG_LEVEL_ERROR, (rs), (stmt), arg, ##__VA_ARGS__)
#define sqlite_bind_loglevel(ll,rs,stmt,arg,...) _sqlite_bind(__WHENCE__, (ll), (rs), (stmt), arg, ##__VA_ARGS__)
#define sqlite_retry(rs,action) _sqlite_retry(__WHENCE__, (rs), (action))
#define sqlite_retry_done(rs,action) _sqlite_retry_done(__WHENCE__, (rs), (action))
#define sqlite_exec(stmt) _sqlite_exec(__WHENCE__, LOG_LEVEL_ERROR, NULL, (stmt))
#define sqlite_exec_retry(rs,stmt) _sqlite_exec(__WHENCE__, LOG_LEVEL_ERROR, (rs), (stmt))
#define sqlite_exec_retry_loglevel(ll,rs,stmt) _sqlite_exec(__WHENCE__, (ll), (rs), (stmt))
#define sqlite_exec_code(stmt, rowcount) _sqlite_exec_code(__WHENCE__, LOG_LEVEL_ERROR, NULL, (stmt), (rowcount))
#define sqlite_exec_code_retry(rs, stmt, rowcount) _sqlite_exec_code(__WHENCE__, LOG_LEVEL_ERROR, (rs), (stmt), (rowcount))
#define sqlite_step(stmt) _sqlite_step(__WHENCE__, LOG_LEVEL_ERROR, NULL, (stmt))
#define sqlite_step_retry(rs,stmt) _sqlite_step(__WHENCE__, LOG_LEVEL_ERROR, (rs), (stmt))
#define sqlite_exec_void(sql,arg,...) _sqlite_exec_void(__WHENCE__, LOG_LEVEL_ERROR, (sql), arg, ##__VA_ARGS__)
#define sqlite_exec_void_loglevel(ll,sql,arg,...) _sqlite_exec_void(__WHENCE__, (ll), (sql), arg, ##__VA_ARGS__)
#define sqlite_exec_void_retry(rs,sql,arg,...) _sqlite_exec_void_retry(__WHENCE__, LOG_LEVEL_ERROR, (rs), (sql), arg, ##__VA_ARGS__)
#define sqlite_exec_changes_retry(rs,ROWS,CHANGES,sql,arg,...) _sqlite_exec_changes_retry(__WHENCE__, LOG_LEVEL_ERROR, (rs), (ROWS), (CHANGES), (sql), arg, ##__VA_ARGS__)
#define sqlite_exec_changes_retry_loglevel(ll,rs,ROWS,CHANGES,sql,arg,...) _sqlite_exec_changes_retry(__WHENCE__, (ll), (rs), (ROWS), (CHANGES), (sql), arg, ##__VA_ARGS__)
#define sqlite_exec_void_retry_loglevel(ll,rs,sql,arg,...) _sqlite_exec_void_retry(__WHENCE__, (ll), (rs), (sql), arg, ##__VA_ARGS__)
#define sqlite_exec_uint64_retry(rs,res,sql,arg,...) _sqlite_exec_uint64_retry(__WHENCE__, (rs), (res), (sql), arg, ##__VA_ARGS__)
#define sqlite_exec_strbuf(sb,sql,arg,...) _sqlite_exec_strbuf(__WHENCE__, (sb), (sql), arg, ##__VA_ARGS__)
#define sqlite_exec_strbuf_retry(rs,sb,sql,arg,...) _sqlite_exec_strbuf_retry(__WHENCE__, (rs), (sb), (sql), arg, ##__VA_ARGS__)
#define sqlite_blob_open_retry(rs,db,table,col,row,flags,blobp) \
_sqlite_blob_open_retry(__WHENCE__, LOG_LEVEL_ERROR, (rs), (db), (table), (col), (row), (flags), (blobp))
#define sqlite_blob_close(blob) _sqlite_blob_close(__WHENCE__, LOG_LEVEL_ERROR, (blob));
#define sqlite_blob_write_retry(rs,blob,buf,siz,off) _sqlite_blob_write_retry(__WHENCE__, LOG_LEVEL_ERROR, (rs), (blob), (buf), (siz), (off))
double rhizome_manifest_get_double(rhizome_manifest *m,char *var,double default_value);
int rhizome_manifest_extract_signature(rhizome_manifest *m, unsigned *ofs);
enum rhizome_bundle_status rhizome_find_duplicate(const rhizome_manifest *m, rhizome_manifest **found);
int rhizome_manifest_to_bar(rhizome_manifest *m, rhizome_bar_t *bar);
enum rhizome_bundle_status rhizome_is_bar_interesting(const rhizome_bar_t *bar);
enum rhizome_bundle_status rhizome_is_interesting(const rhizome_bid_t *bid, uint64_t version, uint64_t *filesizep);
#define rhizome_is_manifest_interesting(M) rhizome_is_interesting(&(M)->keypair.public_key, (M)->version, NULL)
enum rhizome_bundle_status rhizome_retrieve_manifest(const rhizome_bid_t *bid, rhizome_manifest *m);
enum rhizome_bundle_status rhizome_retrieve_manifest_by_prefix(const unsigned char *prefix, unsigned prefix_len, rhizome_manifest *m);
enum rhizome_bundle_status rhizome_retrieve_manifest_by_hash_prefix(const uint8_t *prefix, unsigned prefix_len, rhizome_manifest *m);
enum rhizome_bundle_status rhizome_retrieve_bar_by_hash_prefix(const uint8_t *prefix, unsigned prefix_len, rhizome_bar_t *bar);
int rhizome_advertise_manifest(struct subscriber *dest, rhizome_manifest *m);
int rhizome_delete_bundle(const rhizome_bid_t *bidp);
int rhizome_delete_manifest(const rhizome_bid_t *bidp);
int rhizome_delete_payload(const rhizome_bid_t *bidp);
int rhizome_delete_file(const rhizome_filehash_t *hashp);
#define RHIZOME_DONTVERIFY 0
#define RHIZOME_VERIFY 1
int rhizome_fetching_get_fds(struct pollfd *fds,int *fdcount,int fdmax);
int rhizome_queue_ignore_manifest(const unsigned char *bid_prefix, int prefix_len, int timeout);
int rhizome_ignore_manifest_check(const unsigned char *bid_prefix, int prefix_len);
/* Rhizome list cursor for iterating over all or a subset of manifests in the store.
*/
struct rhizome_list_cursor {
// Query parameters that narrow the set of listed bundles.
const char *service;
const char *name;
bool_t is_sender_set;
bool_t is_recipient_set;
bool_t oldest_first;
sid_t sender;
sid_t recipient;
// If set, then the cursor moves in ascending (chronological) order starting
// from the first bundle with rowid > rowid_since. If zero, then the cursor
// moves in descending (reverse chronological) order starting from the most
// recent bundle.
uint64_t rowid_since;
// Set by calling the next() function.
rhizome_manifest *manifest;
// Private state - implementation that could change.
sqlite_retry_state _retry;
sqlite3_stmt *_statement;
uint64_t _rowid_current;
uint64_t _rowid_last; // for re-opening query
};
int rhizome_list_open(struct rhizome_list_cursor *);
int rhizome_list_next(struct rhizome_list_cursor *);
void rhizome_list_commit(struct rhizome_list_cursor *);
void rhizome_list_release(struct rhizome_list_cursor *);
#define MAX_CANDIDATES 32
int rhizome_suggest_queue_manifest_import(rhizome_manifest *m, const struct socket_address *addr, const struct subscriber *peer);
rhizome_manifest * rhizome_fetch_search(const unsigned char *id, int prefix_length);
int rhizome_fetch_bar_queued(const rhizome_bar_t *bar);
/* Rhizome file storage api */
struct rhizome_write_buffer
{
struct rhizome_write_buffer *_next;
uint64_t offset;
size_t buffer_size;
size_t data_size;
unsigned char data[0];
};
struct rhizome_write
{
uint64_t temp_id;
uint64_t tail;
uint64_t file_offset;
uint64_t written_offset;
uint64_t file_length;
struct rhizome_write_buffer *buffer_list;
size_t buffer_size;
struct crypto_hash_sha512_state sha512_context;
uint64_t blob_rowid;
int blob_fd;
sqlite3_blob *sql_blob;
rhizome_filehash_t id;
uint8_t id_known:1;
uint8_t crypt:1;
uint8_t journal:1;
unsigned char key[RHIZOME_CRYPT_KEY_BYTES];
unsigned char nonce[crypto_box_NONCEBYTES];
};
struct rhizome_read_buffer{
uint64_t offset;
unsigned char data[RHIZOME_CRYPT_PAGE_SIZE];
size_t len;
};
struct rhizome_read
{
uint64_t hash_offset;
struct crypto_hash_sha512_state sha512_context;
uint64_t blob_rowid;
int blob_fd;
uint64_t tail;
uint64_t offset;
uint64_t length;
int8_t verified;
uint8_t crypt;
rhizome_filehash_t id;
unsigned char key[RHIZOME_CRYPT_KEY_BYTES];
unsigned char nonce[crypto_box_NONCEBYTES];
};
int rhizome_received_content(const unsigned char *bidprefix,uint64_t version,
uint64_t offset, size_t count,unsigned char *bytes);
int is_rhizome_enabled();
int is_rhizome_mdp_enabled();
int is_rhizome_http_enabled();
int is_rhizome_advertise_enabled();
int is_rhizome_mdp_server_running();
typedef struct rhizome_direct_bundle_cursor {
/* Where the current fill started */
int64_t start_size_high;
rhizome_bid_t start_bid_low;
/* Limit of where this cursor may traverse */
int64_t limit_size_high;
rhizome_bid_t limit_bid_high;
int64_t size_low;
int64_t size_high;
rhizome_bid_t bid_low;
rhizome_bid_t bid_high;
unsigned char *buffer;
size_t buffer_size;
size_t buffer_used;
size_t buffer_offset_bytes;
} rhizome_direct_bundle_cursor;
rhizome_direct_bundle_cursor *rhizome_direct_bundle_iterator(size_t buffer_size);
void rhizome_direct_bundle_iterator_unlimit(rhizome_direct_bundle_cursor *r);
int rhizome_direct_bundle_iterator_pickle_range(rhizome_direct_bundle_cursor *r,
unsigned char *pickled,
int pickle_buffer_size);
int rhizome_direct_bundle_iterator_unpickle_range(rhizome_direct_bundle_cursor *r,
const unsigned char *pickled,
int pickle_buffer_size);
int rhizome_direct_bundle_iterator_fill(rhizome_direct_bundle_cursor *c,
int max_bars);
void rhizome_direct_bundle_iterator_free(rhizome_direct_bundle_cursor **c);
int rhizome_direct_get_bars(const rhizome_bid_t *bid_low,
rhizome_bid_t *bid_high,
int64_t size_low, int64_t size_high,
const rhizome_bid_t *bid_max,
unsigned char *bars_out,
int bars_requested);
typedef struct rhizome_direct_sync_request {
struct sched_ent alarm;
rhizome_direct_bundle_cursor *cursor;
int pushP;
int pullP;
/* Sync interval in seconds. zero = sync only once */
int interval;
/* The dispatch function will be called each time a sync request can
be sent off, i.e., one cursor->buffer full of data.
Will differ based on underlying transport. HTTP is the initial
supported transport, but deLorme inReach will likely follow soon after.
*/
void (*dispatch_function)(struct rhizome_direct_sync_request *);
/* General purpose pointer for transport-dependent state */
void *transport_specific_state;
/* Statistics.
Each sync will consist of one or more "fills" of the cursor buffer, which
will then be dispatched by the transport-specific dispatch function.
Each of those dispatches may then result in zero or
*/
int syncs_started;
int syncs_completed;
int fills_sent;
int fill_responses_processed;
int bundles_pushed;
int bundles_pulled;
int bundle_transfers_in_progress;
} rhizome_direct_sync_request;
#define RHIZOME_DIRECT_MAX_SYNC_HANDLES 16
extern rhizome_direct_sync_request *rd_sync_handles[RHIZOME_DIRECT_MAX_SYNC_HANDLES];
extern int rd_sync_handle_count;
rhizome_direct_sync_request
*rhizome_direct_new_sync_request(void (*transport_specific_dispatch_function)(struct rhizome_direct_sync_request *),
size_t buffer_size,
int interval,
int mode,
void *transport_specific_state);
int rhizome_direct_continue_sync_request(rhizome_direct_sync_request *r);
int rhizome_direct_conclude_sync_request(rhizome_direct_sync_request *r);
rhizome_direct_bundle_cursor *rhizome_direct_get_fill_response(unsigned char *buffer,int size,int max_response_bytes);
typedef struct rhizome_direct_transport_state_http {
int port;
char host[1024];
} rhizome_direct_transport_state_http;
void rhizome_direct_http_dispatch(rhizome_direct_sync_request *);
extern unsigned char favicon_bytes[];
extern int favicon_len;
int rhizome_import_from_files(const char *manifestpath,const char *filepath);
enum rhizome_start_fetch_result {
STARTED = 0,
SAMEBUNDLE,
SAMEPAYLOAD,
SUPERSEDED,
OLDERBUNDLE,
NEWERBUNDLE,
DONOTWANT,
IMPORTED,
SLOTBUSY
};
enum rhizome_start_fetch_result
rhizome_fetch_request_manifest_by_prefix(const struct socket_address *addr,
const struct subscriber *peer,
const unsigned char *prefix, size_t prefix_length);
int rhizome_any_fetch_active();
int rhizome_any_fetch_queued();
int rhizome_fetch_status_html(struct strbuf *b);
int rhizome_fetch_has_queue_space(unsigned char log2_size);
/* Rhizome storage methods */
enum rhizome_payload_status rhizome_exists(const rhizome_filehash_t *hashp);
enum rhizome_payload_status rhizome_open_write(struct rhizome_write *write, const rhizome_filehash_t *expectedHashp, uint64_t file_length);
int rhizome_write_buffer(struct rhizome_write *write_state, uint8_t *buffer, size_t data_size);
int rhizome_random_write(struct rhizome_write *write_state, uint64_t offset, uint8_t *buffer, size_t data_size);
enum rhizome_payload_status rhizome_write_open_manifest(struct rhizome_write *write, rhizome_manifest *m);
enum rhizome_payload_status rhizome_write_open_journal(struct rhizome_write *write, rhizome_manifest *m, uint64_t advance_by, uint64_t append_size);
int rhizome_write_file(struct rhizome_write *write, const char *filename, off_t offset, uint64_t length);
void rhizome_fail_write(struct rhizome_write *write);
int is_rhizome_write_open(const struct rhizome_write *write);
enum rhizome_payload_status rhizome_finish_write(struct rhizome_write *write);
enum rhizome_payload_status rhizome_finish_store(struct rhizome_write *write, rhizome_manifest *m, enum rhizome_payload_status status);
enum rhizome_payload_status rhizome_import_payload_from_file(rhizome_manifest *m, const char *filepath);
enum rhizome_payload_status rhizome_import_buffer(rhizome_manifest *m, uint8_t *buffer, size_t length);
enum rhizome_payload_status rhizome_stat_payload_file(rhizome_manifest *m, const char *filepath);
enum rhizome_payload_status rhizome_store_payload_file(rhizome_manifest *m, const char *filepath);
int rhizome_derive_payload_key(rhizome_manifest *m);
enum rhizome_payload_status rhizome_append_journal_buffer(rhizome_manifest *m, uint64_t advance_by, uint8_t *buffer, size_t len);
enum rhizome_payload_status rhizome_append_journal_file(rhizome_manifest *m, uint64_t advance_by, const char *filename);
enum rhizome_payload_status rhizome_journal_pipe(struct rhizome_write *write, const rhizome_filehash_t *hashp, uint64_t start_offset, uint64_t length);
int rhizome_crypt_xor_block(unsigned char *buffer, size_t buffer_size, uint64_t stream_offset,
const unsigned char *key, const unsigned char *nonce);
enum rhizome_payload_status rhizome_open_read(struct rhizome_read *read, const rhizome_filehash_t *hashp);
ssize_t rhizome_read(struct rhizome_read *read, unsigned char *buffer, size_t buffer_length);
ssize_t rhizome_read_buffered(struct rhizome_read *read, struct rhizome_read_buffer *buffer, unsigned char *data, size_t len);
void rhizome_read_close(struct rhizome_read *read);
enum rhizome_payload_status rhizome_open_decrypt_read(rhizome_manifest *m, struct rhizome_read *read_state);
enum rhizome_payload_status rhizome_extract_file(rhizome_manifest *m, const char *filepath);
enum rhizome_payload_status rhizome_dump_file(const rhizome_filehash_t *hashp, const char *filepath, uint64_t *lengthp);
ssize_t rhizome_read_cached(const rhizome_bid_t *bid, uint64_t version, time_ms_t timeout,
uint64_t fileOffset, unsigned char *buffer, size_t length);
int rhizome_cache_close();
int rhizome_database_filehash_from_id(const rhizome_bid_t *bidp, uint64_t version, rhizome_filehash_t *hashp);
void rhizome_process_added_bundles(uint64_t up_to_rowid);
DECLARE_ALARM(rhizome_fetch_status);
/* Rhizome triggers */
DECLARE_TRIGGER(bundle_add, rhizome_manifest*);
#endif //__SERVAL_DNA__RHIZOME_H
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