If a thread asks to stop the miner, m_stop will be set, and
that thread will wait to join. If the main thread is exiting
at that time, it will ask the miner to stop, but the miner
will claim it's not mining and early out since m_stop is
set. This will cause the database and other things to get
shutdown. If the miner happens to find a block at that time,
it will try to call core, and crash.
Instead, lock and check whether any threads are currently
in m_threads, since they'll only be cleared once the threads
are joined. Moreover, since we lock, the second thread will
have to wait for the first one to have finished. Calling
join twice on a thread seems fine as per pthread_join(3).
RPC connections now have optional tranparent SSL.
An optional private key and certificate file can be passed,
using the --{rpc,daemon}-ssl-private-key and
--{rpc,daemon}-ssl-certificate options. Those have as
argument a path to a PEM format private private key and
certificate, respectively.
If not given, a temporary self signed certificate will be used.
SSL can be enabled or disabled using --{rpc}-ssl, which
accepts autodetect (default), disabled or enabled.
Access can be restricted to particular certificates using the
--rpc-ssl-allowed-certificates, which takes a list of
paths to PEM encoded certificates. This can allow a wallet to
connect to only the daemon they think they're connected to,
by forcing SSL and listing the paths to the known good
certificates.
To generate long term certificates:
openssl genrsa -out /tmp/KEY 4096
openssl req -new -key /tmp/KEY -out /tmp/REQ
openssl x509 -req -days 999999 -sha256 -in /tmp/REQ -signkey /tmp/KEY -out /tmp/CERT
/tmp/KEY is the private key, and /tmp/CERT is the certificate,
both in PEM format. /tmp/REQ can be removed. Adjust the last
command to set expiration date, etc, as needed. It doesn't
make a whole lot of sense for monero anyway, since most servers
will run with one time temporary self signed certificates anyway.
SSL support is transparent, so all communication is done on the
existing ports, with SSL autodetection. This means you can start
using an SSL daemon now, but you should not enforce SSL yet or
nothing will talk to you.
108c625b CryptonightR: define out i386/x86_64 specific code on other archs (moneromooo-monero)
1b8757dd slow-hash: fix build on arm (moneromooo-monero)
5057eb11 cmake: ARCH_ID fixes for cross compilation (TheCharlatan)
1f5680c8 simplewallet: add help for ask-password options (moneromooo-monero)
c7c74caf simplewallet: mark confirm-missing-payment-id as obsolete (moneromooo-monero)
