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Update offers to latest spec #4849

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rustyrussell
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The only change of significance is the change of chains to chain in invoices and invoice_requests. That's papered over for now with compatibility code.

In particular, they are allowed to include .c files!

Here's `make check-units` on a maintainer-clean tree:

```
onchaind/test/run-onchainstress.c:4:10: fatal error: ../../hsmd/hsmd_wiregen.c: No such file or directory
    4 | #include "../../hsmd/hsmd_wiregen.c"
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~
compilation terminated.
make: *** [Makefile:276: onchaind/test/run-onchainstress.o] Error 1
make: *** Waiting for unfinished jobs....
```

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
The latest ones use lno, not lni (this unit tests loads from
../lightning-rfc, silently exiting if it doesn't have the test
vector).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
That's the modern BOLT12 term.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
@rustyrussell rustyrussell added this to the v0.10.2 milestone Oct 7, 2021
Main changes are:
1. Uses point32 instead of pubkey32.
2. Uses issuer instead of vendor.
3. Uses byte instead of u8.
4. blinded_path num_hops is now a byte, not u16 (we don't use that yet!).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-EXPERIMENTAL: bolt12: `vendor` is deprecated: the field is now called `issuer`.
We keep the now-removed chains field, and in deprecated mode, we set it.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-EXPERIMENTAL: bolt12: `chains` in invoice_request and invoice is deprecated, `chain` is used instead.
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ack faa2a87

@cdecker
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cdecker commented Oct 8, 2021

ACK faa2a87

@cdecker cdecker merged commit c92ce59 into ElementsProject:master Oct 8, 2021
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3 participants