Things are often equivalent but different types:
1. u8 arrays in libwally.
2. sha256
3. Secrets derived via sha256
4. txids
Rather than open-coding a BUILD_ASSERT & memcpy, create a macro to do it.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We have various functions to convert to a string, rename them all so we can
count on fmt_X being the formatter for struct X, and make them all return
`char *`.
Sometimes they existed but were private, sometimes they had a
different name. Most take a pointer, but simple types pass by copy:
short_channel_id, amount_msat and amount_sat.
The following public functions changed:
1. psbt_to_b64 -> fmt_wally_psbt.
2. pubkey_to_hexstr -> fmt_pubkey.
3. short_channel_id_to_str -> fmt_short_channel_id (scid by copy now!)
4. fmt_signature -> fmt_secp256k1_ecdsa_signature
5. fmt_amount_sat/fmt_amount_msat pass copy not pointer, return non-const char *.
6. node_id_to_hexstr -> fmt_node_id
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This is a major cleanup to how we parse addresses.
1. parse_wireaddr now supports the "dns:" prefix to support dns records (type 5).
2. We are less reliant on separate_address_and_port() which gets confused by
that colon.
3. We explicitly test every possible address type we can get back from
parsing, and handle them appropriately.
We update the documentation to use the clearer HOSTNAME vs DNS prefixes now
we also have `dns:` as a prefix.
Changelog-Added: Config: `bind` can now take `dns:` prefix to advertize DNS records.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
1. Make it the standard "return the error" pattern.
2. Rather than flags to indicate what types are allowed, have the callers
check the return explicitly.
3. Document the APIs.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
The hostname part of a DNS FQDN can allow for additional characters
other than specified in `man 7 hostname`.
This extends is_dnsaddr and the test issue #5657.
Also fixes a typo in a comment.
Changelog-Fixed: wireaddr: #5657 allow '_' underscore in hostname part of DNS FQDN
------------------------------- Valgrind errors --------------------------------
Valgrind error file: valgrind-errors.493330
==493330== Conditional jump or move depends on uninitialised value(s)
==493330== at 0x154051: opt_add_addr_withtype (options.c:275)
==493330== by 0x154406: opt_add_announce_addr (options.c:302)
==493330== by 0x2696E6: parse_one (parse.c:121)
==493330== by 0x25CFB5: opt_parse (opt.c:228)
==493330== by 0x155DB6: handle_opts (options.c:1413)
==493330== by 0x127317: main (lightningd.c:994)
==493330==
{
<insert_a_suppression_name_here>
Memcheck:Cond
fun:opt_add_addr_withtype
fun:opt_add_announce_addr
fun:parse_one
fun:opt_parse
fun:handle_opts
fun:main
}
--------------------------------------------------------------------------------
Leaving base_dir /tmp/ltests-iyf2dw3n intact, it still has test sub-directories with failure details: ['test_announce_dns_without_port_1']
====================================== short test summary info ======================================
ERROR tests/test_gossip.py::test_announce_dns_without_port - ValueError:
blob[] is really a string from the commandline; leave it as a char.
And parsing is much simpler than this code makes it seem!
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This surprised me, since the CHANGELOG for [0.8.2] said:
We now announce multiple addresses of the same type, if given. ([3609](https://github.com/ElementsProject/lightning/pull/3609))
But it lied!
Changelog-Fixed: We really do allow providing multiple addresses of the same type.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
October was the date Torv2 is no longer supported by the Tor Project;
it will probably not work at all by next release, so we should remove
it now even though it's not quite the 6 months we prefer for
deprecation cycles.
I still see 110 nodes advertizing Torv2 (vs 10,292 Torv3); we still
parse and display it, we just don't advertize or connect to it.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Before:
Ten builds, laptop -j5, no ccache:
```
real 0m36.686000-38.956000(38.608+/-0.65)s
user 2m32.864000-42.253000(40.7545+/-2.7)s
sys 0m16.618000-18.316000(17.8531+/-0.48)s
```
Ten builds, laptop -j5, ccache (warm):
```
real 0m8.212000-8.577000(8.39989+/-0.13)s
user 0m12.731000-13.212000(12.9751+/-0.17)s
sys 0m3.697000-3.902000(3.83722+/-0.064)s
```
After:
Ten builds, laptop -j5, no ccache: 8% faster
```
real 0m33.802000-35.773000(35.468+/-0.54)s
user 2m19.073000-27.754000(26.2542+/-2.3)s
sys 0m15.784000-17.173000(16.7165+/-0.37)s
```
Ten builds, laptop -j5, ccache (warm): 1% faster
```
real 0m8.200000-8.485000(8.30138+/-0.097)s
user 0m12.485000-13.100000(12.7344+/-0.19)s
sys 0m3.702000-3.889000(3.78787+/-0.056)s
```
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Tor v2 hidden services have been deprecated for a while:
https://blog.torproject.org/v2-deprecation-timeline .
This prevents user from being able to set them in the configuration
and to connect to them while still letting us be able to parse them
for gossip.
Changelog-Deprecated: lightningd: v2 Tor addresses. Use v3. See https://blog.torproject.org/v2-deprecation-timeline.
Signed-off-by: Antoine Poinsot <darosior@protonmail.com>
We should actually be including this (as it may define _GNU_SOURCE
etc) before any system headers. But where we include <assert.h> we
often didn't, because check-includes would complain that the headers
included it too.
Weaken that check, and include config.h in C files before assert.h.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Didn't generally fixup inside comments and the bech32 code: reformatting that
is just anti-social.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We want to have a static Tor service created from a blob bound to
our node on cmdline
Changelog-added: persistent Tor address support
Changelog-added: allow the Tor inbound service port differ from 9735
Signed-off-by: Saibato <saibato.naga@pm.me>
Add base64 encode/decode to common
We need this to encode the blob for the tor service
Signed-off-by: Saibato <saibato.naga@pm.me>
Thanks clang! Here's the error:
ommon/wireaddr.c:359:14: error: variable 'addr' is used uninitialized whenever
'if' condition is false [-Werror,-Wsometimes-uninitialized]
} else if (addrinfo->ai_family == AF_INET6) {
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
common/wireaddr.c:364:25: note: uninitialized use occurs here
tal_arr_expand(addrs, addr);
^~~~
./common/utils.h:27:16: note: expanded from macro 'tal_arr_expand'
(*(p))[n] = (s); \
^
common/wireaddr.c:359:10: note: remove the 'if' if its condition is always true
} else if (addrinfo->ai_family == AF_INET6) {
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
common/wireaddr.c:354:3: note: variable 'addr' is declared here
struct wireaddr addr;
^
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
==12787== Uninitialised byte(s) found during client check request
==12787== at 0x450AAC: memcheck_ (mem.h:247)
==12787== by 0x450B17: towire (towire.c:19)
==12787== by 0x45103D: towire_u8_array (towire.c:159)
==12787== by 0x443235: towire_wireaddr_internal (wireaddr.c:79)
==12787== by 0x46E6F2: towire_connectctl_init (gen_connect_wire.c:229)
==12787== by 0x40D6C8: connectd_init (connect_control.c:369)
==12787== by 0x4186D3: main (lightningd.c:701)
==12787== Address 0x682d8a9 is 361 bytes inside a block of size 568 alloc'd
==12787== at 0x4C2FD5F: realloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==12787== by 0x4867A5: tal_resize_ (tal.c:694)
==12787== by 0x41F3EE: opt_add_addr_withtype (options.c:143)
==12787== by 0x41F4D7: opt_add_bind_addr (options.c:155)
==12787== by 0x47E364: parse_one (parse.c:121)
==12787== by 0x47F9C8: opt_parse (opt.c:210)
==12787== by 0x4212F9: handle_opts (options.c:892)
==12787== by 0x41864C: main (lightningd.c:667)
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
this enables addr like --addr=autotor:127.0.0.1 or
--addr=autotor:localhost to just use the default tor service port
Signed-off-by: Saibato <Saibato.naga@pm.me>
tal_count() is used where there's a type, even if it's char or u8, and
tal_bytelen() is going to replace tal_len() for clarity: it's only needed
where a pointer is void.
We shim tal_bytelen() for now.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This is a best effort attempt to skip connection attempts if we detect a broken
ISP resolver. A broken ISP resolver is a resolver that will replace NXDOMAIN
replies with a dummy response. This is best effort in that it'll only detect a
single fixed dummy reply, it'll check only on startup, and will not detect if we
switched networks. It should be good enough for most cases, and in the worst
case it will result in a connection attempt that does not complete.
Signed-off-by: Christian Decker <decker.christian@gmail.com>
Reported-by: Glenn Willen <@gwillen>
2018-06-14T01:09:03.495Z lightningd(23766): HSM: created new hsm_secret file
==23785== Syscall param socketcall.bind(my_addr.sin6_flowinfo) points to uninitialised byte(s)
==23785== at 0x5731877: bind (syscall-template.S:78)
==23785== by 0x11767C: make_listen_fd (gossip.c:2405)
==23785== by 0x117DA2: handle_wireaddr_listen (gossip.c:2558)
==23785== by 0x1183B7: setup_listeners (gossip.c:2653)
==23785== by 0x118E86: gossip_activate (gossip.c:2871)
==23785== by 0x11AC42: recv_req (gossip.c:3543)
==23785== by 0x143FF1: next_plan (io.c:59)
==23785== by 0x144AEE: do_plan (io.c:387)
==23785== by 0x144B2C: io_ready (io.c:397)
==23785== by 0x146719: io_loop (poll.c:310)
==23785== by 0x11B0B0: main (gossip.c:3687)
==23785== Address 0x1ffeffffa4 is on thread 1's stack
==23785== in frame #2, created by handle_wireaddr_listen (gossip.c:2539)
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Tor wasn't actually working for me to connect to anything, but it worked
for 'ssh -D' testing.
Note that the resulting 'netaddr' is a bit weird, but I guess it's honest.
$ ./cli/lightning-cli connect 021f2cbffc4045ca2d70678ecf8ed75e488290874c9da38074f6d378248337062b
{
"id": "021f2cbffc4045ca2d70678ecf8ed75e488290874c9da38074f6d378248337062b"
}
$ ./cli/lightning-cli listpeers
{
"peers": [
{
"state": "GOSSIPING",
"id": "021f2cbffc4045ca2d70678ecf8ed75e488290874c9da38074f6d378248337062b",
"netaddr": [
"ln1qg0je0lugpzu5ttsv78vlrkhteyg9yy8fjw68qr57mfhsfyrxurzkq522ah.lseed.bitcoinstats.com:9735"
],
"connected": true,
"owner": "lightning_gossipd"
}
]
}
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
