Commit Graph

59 Commits

Author SHA1 Message Date
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
Riccardo Spagni
9fff66f004
Merge pull request #3012
e4bbeff2 epee: check some error return values (moneromooo-monero)
2018-01-25 16:36:27 -08:00
moneromooo-monero
b7e5a70bb1
epee: detect strptime, use std::get_time as fallback 2018-01-11 21:41:07 +00:00
moneromooo-monero
e4bbeff2f5
epee: check some error return values 2017-12-27 00:14:43 +00:00
moneromooo-monero
373d1d504b
epee: use strptime instead of std::get_time, for compatibility 2017-12-21 16:04:47 +00:00
moneromooo-monero
09ce03d612
move includes around to lessen overall load 2017-12-16 22:46:38 +00:00
moneromooo-monero
f80f408b7e
epee: don't disable -Wtautological-constant-out-of-range-compare on GCC
It's a CLANG only option, and causes GCC to error out
2017-11-14 17:22:39 +00:00
moneromooo-monero
9ff8e139cd
epee: disable a spurious warning for a storage function 2017-10-28 11:52:14 +01:00
Jaquee
76961ddc3e Serializer: string to integer conversion for MyMonero compatibility
mymonero timestamp conversion
2017-10-15 17:29:07 +02:00
Jaquee
1cf940f2a1 epee http_client SSL support 2017-10-15 17:29:04 +02:00
Riccardo Spagni
170526dc02
Merge pull request #2253
51ebedb8 epee: remove a couple unused locals (moneromooo-monero)
2017-08-15 20:48:45 +02:00
moneromooo-monero
51ebedb803
epee: remove a couple unused locals 2017-08-05 18:42:53 +01:00
Erik de Castro Lopo
35d68b2c6d Fix spelling errors 2017-07-05 17:53:16 +10:00
Lee Clagett
8c84d48caa Updated default RPC timeout from 5 seconds to 15 seconds 2017-02-24 12:55:17 -05:00
Lee Clagett
ce7fcbb4ae Add server auth to monerod, and client auth to wallet-cli and wallet-rpc 2017-02-06 01:15:41 -05:00
Lee Clagett
c02e1cb943 Updates to epee HTTP client code
- http_simple_client now uses std::chrono for timeouts
  - http_simple_client accepts timeouts per connect / invoke call
  - shortened names of epee http invoke functions
  - invoke command functions only take relative path, connection
    is not automatically performed
2017-01-25 15:39:32 -05:00
moneroexamples
0fd2508b89 removing some unsed epee files 2017-01-20 01:05:14 +00:00
moneromooo-monero
5833d66f65
Change logging to easylogging++
This replaces the epee and data_loggers logging systems with
a single one, and also adds filename:line and explicit severity
levels. Categories may be defined, and logging severity set
by category (or set of categories). epee style 0-4 log level
maps to a sensible severity configuration. Log files now also
rotate when reaching 100 MB.

To select which logs to output, use the MONERO_LOGS environment
variable, with a comma separated list of categories (globs are
supported), with their requested severity level after a colon.
If a log matches more than one such setting, the last one in
the configuration string applies. A few examples:

This one is (mostly) silent, only outputting fatal errors:

MONERO_LOGS=*:FATAL

This one is very verbose:

MONERO_LOGS=*:TRACE

This one is totally silent (logwise):

MONERO_LOGS=""

This one outputs all errors and warnings, except for the
"verify" category, which prints just fatal errors (the verify
category is used for logs about incoming transactions and
blocks, and it is expected that some/many will fail to verify,
hence we don't want the spam):

MONERO_LOGS=*:WARNING,verify:FATAL

Log levels are, in decreasing order of priority:
FATAL, ERROR, WARNING, INFO, DEBUG, TRACE

Subcategories may be added using prefixes and globs. This
example will output net.p2p logs at the TRACE level, but all
other net* logs only at INFO:

MONERO_LOGS=*:ERROR,net*:INFO,net.p2p:TRACE

Logs which are intended for the user (which Monero was using
a lot through epee, but really isn't a nice way to go things)
should use the "global" category. There are a few helper macros
for using this category, eg: MGINFO("this shows up by default")
or MGINFO_RED("this is red"), to try to keep a similar look
and feel for now.

Existing epee log macros still exist, and map to the new log
levels, but since they're used as a "user facing" UI element
as much as a logging system, they often don't map well to log
severities (ie, a log level 0 log may be an error, or may be
something we want the user to see, such as an important info).
In those cases, I tried to use the new macros. In other cases,
I left the existing macros in. When modifying logs, it is
probably best to switch to the new macros with explicit levels.

The --log-level options and set_log commands now also accept
category settings, in addition to the epee style log levels.
2017-01-16 00:25:46 +00:00
NanoAkron
d28db2368e
Unkonown -> unknown 2016-10-27 23:07:37 +01:00
redfish
c2d7300d2e contrib: epee: add exception spec to throwing destructors
The destructors get a noexcept(true) spec by default, but these
destructors in fact throw exceptions. An alternative fix might be to not
throw (most if not all of these throws are non-essential
error-reporting/logging).
2016-05-18 01:02:27 -04:00
Riccardo Spagni
51a56e78ae
remove unecessary and bad std::move from portable_storage_template_helper.h 2016-03-25 14:33:58 +02:00
moneromooo-monero
f7301c3563
Revert "Print stack trace upon exceptions"
Ain't nobody got time for link/cmake skullduggery.

This reverts commit fff238ec94.
2016-03-21 10:12:23 +00:00
moneromooo-monero
fff238ec94
Print stack trace upon exceptions
Useful for debugging users' logs
2016-03-19 21:48:36 +00:00
warptangent
696225321f
Fix compile for GCC 5.1.0
Add fix for compile error with multiple uses of peerid_type (uint64_t)
variable in lambda expression.
- known GCC issue: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65843

epee: replace return value of nullptr for expected boolean with false.

Fixes #231.
2015-05-25 22:18:36 -07:00
rfree2monero
5ce4256e3d 2014 network limit 1.1 +utils +toc -doc -drmonero
Update of the PR with network limits

works very well for all speeds
(but remember that low download speed can stop upload
because we then slow down downloading of blockchain
requests too)

more debug options

fixed pedantic warnings in our code
should work again on Mac OS X and FreeBSD
fixed warning about size_t
tested on Debian, Ubuntu, Windows(testing now)

TCP options and ToS (QoS) flag
FIXED peer number limit
FIXED some spikes in ingress/download
FIXED problems when other up and down limit
2015-02-20 22:13:00 +01:00
Riccardo Spagni
f4b69d553a
year updated in license 2015-01-02 18:52:46 +02:00