Commit Graph

84 Commits

Author SHA1 Message Date
moneromooo-monero 89fe0e1c81
storages: overridable limits for loading portable_storage from binary 2021-01-07 20:24:51 +00:00
moneromooo-monero 5d2dd7a328
epee: also limit number of strings in portable_storage
They require at least 24 bytes
2021-01-05 17:56:11 +00:00
moneromooo-monero 0add7ec1cd
portable_storage: better sanity checking 2021-01-02 12:36:42 +00:00
Alexander Blair 2107337999
Merge pull request #7251
f0b867b13 Restrict duplicate keys in epee binary format (Lee Clagett)
2021-01-01 22:44:24 -08:00
Alexander Blair f4e34d50cf
Merge pull request #7249
cb296b39b portable_storage: forbid unnamed sections (xiphon)
2021-01-01 22:44:02 -08:00
xiphon cb296b39bd
portable_storage: forbid unnamed sections 2021-01-01 02:06:39 +01:00
moneromooo 531069859f
portable_storage: check object limit where appropriate
also fix pedantic off by one in check
2020-12-31 22:35:32 +00:00
moneromooo-monero b39ee13d70
portable_storage: remove array element limit
some people don't want it
2020-12-28 21:05:12 +00:00
moneromooo-monero 0fc927dfba
portable_storage: remove overly aggressive cutoff 2020-12-27 12:45:13 +00:00
moneromooo-monero d5be31ee21
portable_storage: add some sanity checks on data size
especially when allocated size is >> serialized data size
2020-12-26 03:23:12 +00:00
Lee Clagett f0b867b13d Restrict duplicate keys in epee binary format 2020-12-17 01:04:00 +00:00
moneromooo-monero 05ad4fa397
epee: further defending against exceptions in command handlers 2020-08-02 00:22:47 +00:00
Alexander Blair a0d179e528
Merge pull request #6512
5ef0607da Update copyright year to 2020 (SomaticFanatic)
2020-07-19 03:32:59 -07:00
moneromooo-monero 3721d5688f epee: fix array underflow in unicode parsing
Reported by minerscan

Also independently found by OSS-Fuzz just recently
2020-06-21 18:22:16 +00:00
Lee Clagett 7aeb503547 Fix boost <1.60 compilation and fix boost 1.73+ warnings 2020-05-31 21:18:11 -04:00
selsta f35ced6d7f
build: fix boost 1.73 compatibility 2020-05-14 22:57:53 +02:00
SomaticFanatic 5ef0607da6 Update copyright year to 2020
Update copyright year to 2020
2020-05-06 22:36:54 -04:00
woodser 87d75584e8 Allow wallet2.h to run in WebAssembly
- Add abstract_http_client.h which http_client.h extends.
- Replace simple_http_client with abstract_http_client in wallet2,
message_store, message_transporter, and node_rpc_proxy.
- Import and export wallet data in wallet2.
- Use #if defined __EMSCRIPTEN__ directives to skip incompatible code.
2020-04-15 13:22:46 -04:00
luigi1111 cfc0f4a7fa
Merge pull request #6351
81c5943 Remove temporary std::string creation in some hex->bin calls (vtnerd)
5fcc23a Move hex->bin conversion to monero copyright files and with less includes (vtnerd)
3387f0e Reduce template bloat in hex->bin for ZMQ json (vtnerd)
2020-04-04 12:55:02 -05:00
luigi1111 48b244dcd4
Merge pull request #6311
5002a03 Explicitly define copy assignment operator (omartijn)
2020-03-31 15:13:35 -05:00
Lee Clagett 5fcc23ae0a Move hex->bin conversion to monero copyright files and with less includes 2020-03-09 05:23:59 +00:00
Alexander Blair 944e8a4542
Merge pull request #6220
a9bdc6e4 Improved performance for epee serialization: (Lee Clagett)
2020-02-28 19:45:31 -08:00
Martijn Otto 5002a0343f
Explicitly define copy assignment operator
The implicit copy assignment operator was deprecated because the class
has an explicit copy constructor. According to the standard:

The generation of the implicitly-defined copy assignment operator is
deprecated (since C++11) if T has a user-declared destructor or
user-declared copy constructor.

Recent versions of gcc (9.1+) and clang (10.0) warn about this.
2020-01-28 14:59:55 +01:00
moneromooo-monero 56a4469ef3
network: log traffic and add a simple traffic analysis script 2020-01-26 00:33:41 +00:00
Lee Clagett a9bdc6e4c4 Improved performance for epee serialization:
- Removed copy of field names in binary deserialization
  - Removed copy of array values in binary deserialization
  - Removed copy of string values in json deserialization
  - Removed unhelpful allocation in json string value parsing
  - Removed copy of blob data on binary and json serialization
2019-11-04 01:46:41 +00:00
moneromooo-monero 2899379791
daemon, wallet: new pay for RPC use system
Daemons intended for public use can be set up to require payment
in the form of hashes in exchange for RPC service. This enables
public daemons to receive payment for their work over a large
number of calls. This system behaves similarly to a pool, so
payment takes the form of valid blocks every so often, yielding
a large one off payment, rather than constant micropayments.

This system can also be used by third parties as a "paywall"
layer, where users of a service can pay for use by mining Monero
to the service provider's address. An example of this for web
site access is Primo, a Monero mining based website "paywall":
https://github.com/selene-kovri/primo

This has some advantages:
 - incentive to run a node providing RPC services, thereby promoting the availability of third party nodes for those who can't run their own
 - incentive to run your own node instead of using a third party's, thereby promoting decentralization
 - decentralized: payment is done between a client and server, with no third party needed
 - private: since the system is "pay as you go", you don't need to identify yourself to claim a long lived balance
 - no payment occurs on the blockchain, so there is no extra transactional load
 - one may mine with a beefy server, and use those credits from a phone, by reusing the client ID (at the cost of some privacy)
 - no barrier to entry: anyone may run a RPC node, and your expected revenue depends on how much work you do
 - Sybil resistant: if you run 1000 idle RPC nodes, you don't magically get more revenue
 - no large credit balance maintained on servers, so they have no incentive to exit scam
 - you can use any/many node(s), since there's little cost in switching servers
 - market based prices: competition between servers to lower costs
 - incentive for a distributed third party node system: if some public nodes are overused/slow, traffic can move to others
 - increases network security
 - helps counteract mining pools' share of the network hash rate
 - zero incentive for a payer to "double spend" since a reorg does not give any money back to the miner

And some disadvantages:
 - low power clients will have difficulty mining (but one can optionally mine in advance and/or with a faster machine)
 - payment is "random", so a server might go a long time without a block before getting one
 - a public node's overall expected payment may be small

Public nodes are expected to compete to find a suitable level for
cost of service.

The daemon can be set up this way to require payment for RPC services:

  monerod --rpc-payment-address 4xxxxxx \
    --rpc-payment-credits 250 --rpc-payment-difficulty 1000

These values are an example only.

The --rpc-payment-difficulty switch selects how hard each "share" should
be, similar to a mining pool. The higher the difficulty, the fewer
shares a client will find.
The --rpc-payment-credits switch selects how many credits are awarded
for each share a client finds.
Considering both options, clients will be awarded credits/difficulty
credits for every hash they calculate. For example, in the command line
above, 0.25 credits per hash. A client mining at 100 H/s will therefore
get an average of 25 credits per second.
For reference, in the current implementation, a credit is enough to
sync 20 blocks, so a 100 H/s client that's just starting to use Monero
and uses this daemon will be able to sync 500 blocks per second.

The wallet can be set to automatically mine if connected to a daemon
which requires payment for RPC usage. It will try to keep a balance
of 50000 credits, stopping mining when it's at this level, and starting
again as credits are spent. With the example above, a new client will
mine this much credits in about half an hour, and this target is enough
to sync 500000 blocks (currently about a third of the monero blockchain).

There are three new settings in the wallet:

 - credits-target: this is the amount of credits a wallet will try to
reach before stopping mining. The default of 0 means 50000 credits.

 - auto-mine-for-rpc-payment-threshold: this controls the minimum
credit rate which the wallet considers worth mining for. If the
daemon credits less than this ratio, the wallet will consider mining
to be not worth it. In the example above, the rate is 0.25

 - persistent-rpc-client-id: if set, this allows the wallet to reuse
a client id across runs. This means a public node can tell a wallet
that's connecting is the same as one that connected previously, but
allows a wallet to keep their credit balance from one run to the
other. Since the wallet only mines to keep a small credit balance,
this is not normally worth doing. However, someone may want to mine
on a fast server, and use that credit balance on a low power device
such as a phone. If left unset, a new client ID is generated at
each wallet start, for privacy reasons.

To mine and use a credit balance on two different devices, you can
use the --rpc-client-secret-key switch. A wallet's client secret key
can be found using the new rpc_payments command in the wallet.
Note: anyone knowing your RPC client secret key is able to use your
credit balance.

The wallet has a few new commands too:

 - start_mining_for_rpc: start mining to acquire more credits,
regardless of the auto mining settings
 - stop_mining_for_rpc: stop mining to acquire more credits
 - rpc_payments: display information about current credits with
the currently selected daemon

The node has an extra command:

 - rpc_payments: display information about clients and their
balances

The node will forget about any balance for clients which have
been inactive for 6 months. Balances carry over on node restart.
2019-10-25 09:34:38 +00:00
moneromooo-monero 516f7b9de0
storages: fix "portable" storage on big endian 2019-09-04 14:53:57 +00:00
moneromooo-monero 32c3834948
storages: fix writing varints on big endian 2019-09-04 14:53:57 +00:00
moneromooo-monero eeca5ca0c8
epee: support unicode in parsed strings 2019-08-16 17:06:03 +00:00
moneromooo-monero 39169ace09
epee: basic sanity check on allocation size from untrusted source
Reported by guidov
2019-06-14 08:47:01 +00:00
Riccardo Spagni 38317f384c
Merge pull request #5348
59776a64 epee: some more minor JSON parsing speedup (moneromooo-monero)
2019-04-06 16:00:18 +02:00
moneromooo-monero 59776a64ff
epee: some more minor JSON parsing speedup 2019-03-25 14:29:29 +00:00
Guido Vranken 43042a28ec Implement array_entry_t copy constructor
Manually initialize the array_entry_t iterator to ensure it points
to the correct m_array, thereby preventing a potential use-after-free
situation.

Signed-off-by: Guido Vranken <guidovranken@gmail.com>
2019-03-18 00:49:12 +01:00
moneromooo-monero 21777daf6e
epee: speedup word/number matching
Number matching semantics are slightly changed: since this is used
as a filter to check whether a number is signed and/or floating
point, we can speed this up further. strto* functions are called
afterwards and will error out where necessary. We now also accept
numbers like .4 which were not accepted before.

The strto* calls on a boost::string_ref will not access unallocated
memory since the parsers always stop at the first bad character,
and the original string is zero terminated.

in arbitrary time measurement units for some arbitrary test case:

match_number2: 235 -> 70
match_word2: 330 -> 108
2019-01-16 19:59:40 +00:00
Riccardo Spagni a093a7569e
Merge pull request #5021
b82efa32 epee: speed up json parsing (moneromooo-monero)
2019-01-16 21:37:29 +02:00
Riccardo Spagni 846362842c
Merge pull request #4976
85665003 epee: better network buffer data structure (moneromooo-monero)
2019-01-16 19:04:22 +02:00
Riccardo Spagni ad1eb3338c
Merge pull request #4938
a13eb0a1 epee: speed up string matching a bit (moneromooo-monero)
3a3858dc epee: avoid string allocation when parsing a pod from string (moneromooo-monero)
2019-01-06 20:36:46 +02:00
moneromooo-monero b82efa32e7
epee: speed up json parsing 2018-12-27 14:28:30 +00:00
moneromooo-monero 85665003a7
epee: better network buffer data structure
avoids pointless allocs and memcpy
2018-12-23 16:46:07 +00:00
moneromooo-monero a13eb0a1a4
epee: speed up string matching a bit 2018-12-08 02:00:37 +00:00
moneromooo-monero 9c923bad9b
epee: fix network packet header field endianness 2018-12-04 15:14:32 +00:00
Riccardo Spagni 3880cae134
Merge pull request #4775
741e4a11 epee: speed up json number parsing (moneromooo-monero)
2018-11-16 11:00:56 +02:00
moneromooo-monero 741e4a1172
epee: speed up json number parsing 2018-11-01 16:36:16 +00:00
moneromooo-monero 07c6280909
epee: some minor speedup in parsing 2018-10-24 08:34:25 +00:00
moneromooo-monero bf9a0f4c65
epee: fix stack overflow on crafted input 2018-09-25 11:27:50 +00:00
moneromooo-monero 45683ee02c
epee: fix invalid memory write reading an array entry
Reported by Lilith Wyatt at Talos.

Since this is not needed in normal operation, I just let this
error out.
2018-09-25 11:27:48 +00:00
moneromooo-monero 76affd941b
epee: some speedup in parsing 2018-08-19 15:29:01 +00:00
Riccardo Spagni f4a6bc79d9
Merge pull request #3226
e4646379 keccak: fix mdlen bounds sanity checking (moneromooo-monero)
2e3e90ac pass large parameters by const ref, not value (moneromooo-monero)
61defd89 blockchain: sanity check number of precomputed hash of hash blocks (moneromooo-monero)
9af6b2d1 ringct: fix infinite loop in unused h2b function (moneromooo-monero)
8cea8d0c simplewallet: double check a new multisig wallet is multisig (moneromooo-monero)
9b98a6ac threadpool: catch exceptions in dtor, to avoid terminate (moneromooo-monero)
24803ed9 blockchain_export: fix buffer overflow in exporter (moneromooo-monero)
f3f7da62 perf_timer: rewrite to make it clear there is no division by zero (moneromooo-monero)
c6ea3df0 performance_tests: remove add_arg call stray extra param (moneromooo-monero)
fa6b4566 fuzz_tests: fix an uninitialized var in setup (moneromooo-monero)
03887f11 keccak: fix sanity check bounds test (moneromooo-monero)
ad11db91 blockchain_db: initialize m_open in base class ctor (moneromooo-monero)
bece67f9 miner: restore std::cout precision after modification (moneromooo-monero)
1aabd14c db_lmdb: check hard fork info drop succeeded (moneromooo-monero)
2018-02-16 14:26:58 +01:00
moneromooo-monero 2e3e90acbe
pass large parameters by const ref, not value
Coverity 136394 136397 136409 136526 136529 136533 175302
2018-02-02 19:36:09 +00:00
Erik de Castro Lopo 8f30350d03 Fix method name in invoke_http_json_rpc
Previously, the method name was printed as an exmpty string because
the input string had already been moved with `std::move`.
2018-01-29 11:14:02 +11:00