This is vital for calculating merkle trees; I previously used
towire+fromwire to get this!
Requires generation change so we can magic the ARRAY_SIZE var (the C
pre-processor can't uppercase things).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
There's a lot of it, and it means we can't `make check-source` on
these files.
Also bring bolt quotes up-to-date.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We have to handle singletons which are arrays of variable-length entries:
this needs to be a ptr-to-ptr.
```C
struct blinded_payinfo {
u32 fee_base_msat;
u32 fee_proportional_millionths;
u16 cltv_expiry_delta;
u8 *features;
};
```
Before:
```C
struct tlv_invoice_tlvs {
...
struct blinded_payinfo *blindedpay;
```
After:
```C
struct tlv_invoice_tlvs {
...
struct blinded_payinfo **blindedpay;
```
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
has_len_fields() doesn't cover our blacklist of variable types, so if
we have an array of them, this logic is wrong. This happens in the
the bolt13 patch:
```C
struct tlv_offer_tlvs_blindedpath {
struct pubkey blinding;
struct onionmsg_path **path;
};
```
Before:
wire/gen_bolt13_tlv.c:
```C
for (size_t i = 0; i < tal_count(r->blindedpath->path); i++)
towire_onionmsg_path(&ptr, r->blindedpath->path + i);
```
After:
```C
for (size_t i = 0; i < tal_count(r->blindedpath->path); i++)
towire_onionmsg_path(&ptr, r->blindedpath->path[i]);
```
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
The formatting makes it harder for update-mocks, eg:
/* Generated stub for fmt_wireaddr_without_port */
char *fmt_wireaddr_without_port(const tal_t *ctx UNNEEDED, const struct wireaddr *a UNNEEDED)
{ fprintf(stderr, "fmt_wireaddr_without_port called!\n"); abort(); }
/* Could not find declaration for fromwire_onionmsg_path */
/* Generated stub for json_add_member */
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
When we have only a single member in a TLV (e.g. an optional u64),
wrapping it in a struct is awkward. This changes it to directly
access those fields.
This is not only more elegant (60 fewer lines), it would also be
more cache friendly. That's right: cache hot singles!
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We cannot let users use `sendcustommsg` to inject messages that are handled
internally since it could result in our internal state tracking being borked.
Since the parser itself just parses and doesn't include validation anymore we
need to put that functionality somewhere. The validation consists of enforcing
that the types are in monotonically increasing order without duplicates and
that for the even types we know how to handle it.
We were weaving in and out of generic code through `fromwire_tlvs` with custom
parameters defining the types in that namespace. This hard-wires the parser
with the namespace's types. Slowly trying to deprecate `fromwire_tlvs` in
favor of this typesafe variant.
Our TLV serializer relies on TLV outputs to be ordered by type
number. Prior to this commit we relied on 1) the ordering in the
RFC to be correct and 2) users to be using a version of Python that
respects stable ordering of dicts (i.e. Python 3.7+)
Instead of relying on these implicitly, we now explicitly sort messages
by type number when the TLV sets.
Resolves#2956.
Thanks-To: @ScottTre for the sort function
Reported-By: @ZmnSCPxj
TLVs have an implicit `len` field, so allow expressions containing
that (eg. `len-1`), but assume it means "the remainder of the
message".
This means in most places, f.size() needs an fallback for the
implicit-length case.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We need to hand -s to both header and body generation, or neither:
wire/gen_peer_wire.c:53:13: error: static declaration of ‘towire_channel_update_timestamps’ follows non-static declaration
In file included from wire/gen_peer_wire.c:5:
./wire/gen_peer_wire.h:78:6: note: previous declaration of ‘towire_channel_update_timestamps’ was here
We also need it for printwire, otherwise we get static unused functions for subtypes:
devtools/gen_print_wire.c:155:13: error: ‘printwire_channel_update_checksums’ defined but not used [-Werror=unused-function]
static void printwire_channel_update_checksums(const char *fieldname, const u8 **cursor, size_t *plen)
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
devtools/gen_print_wire.c:133:13: error: ‘printwire_channel_update_timestamps’ defined but not used [-Werror=unused-function]
static void printwire_channel_update_timestamps(const char *fieldname, const u8 **cursor, size_t *plen)
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
remove extra space from the lead-in for inline comments
so that a provided comment like this
# This is a comment
will appear like this
/* This is a comment */
if there are any comments that aren't "attached" to a message,
print them at the top of the generated file. we need this for
the fancy auto-gen'd dependencies in the tool-wiregen tests.
the RFC's extract-format.py is switching to a new format.
this script can correctly parse them.
mostly moves logic over from generate-wire.py, uses a
Python formatting libarary called mako, which needs to be
installed prior to running this script.
you can add it to your system with
sudo apt-get install python3-mako
Rusty Russell
Christian Decker
darosior
lisa neigut