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some work on multibytes

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Florent 2026-03-06 10:40:14 -04:00
parent f57cb66277
commit c378319252
2 changed files with 66 additions and 15 deletions
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40
src/meshcore/reader.py
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@ -99,7 +99,13 @@ class MessageReader:
c["public_key"] = dbuf.read(32).hex()
c["type"] = dbuf.read(1)[0]
c["flags"] = dbuf.read(1)[0]
c["out_path_len"] = int.from_bytes(dbuf.read(1), signed=True, byteorder="little")
plen = int.from_bytes(dbuf.read(1), signed=False, byteorder="little")
if plen == 255: # flood
c["out_path_hash_mode"] = -1
c["out_path_len"] = -1 # 6 LSB
else:
c["out_path_hash_mode"] = plen >> 6
c["out_path_len"] = plen & 0x3F # 6 LSB
c["out_path"] = dbuf.read(64).replace(b"\0", b"").hex()
c["adv_name"] = dbuf.read(32).decode("utf-8", "ignore").replace("\0", "")
c["last_advert"] = int.from_bytes(dbuf.read(4), byteorder="little")
@ -173,7 +179,13 @@ class MessageReader:
res = {}
res["type"] = "PRIV"
res["pubkey_prefix"] = dbuf.read(6).hex()
res["path_len"] = dbuf.read(1)[0]
plen = dbuf.read(1)[0]
if plen == 255 : # direct message
res["path_hash_mode"] = -1
res["path_len"] = plen
else:
res["path_hash_mode"] = plen >> 6
res["path_len"] = plen & 0x3F
txt_type = dbuf.read(1)[0]
res["txt_type"] = txt_type
res["sender_timestamp"] = int.from_bytes(dbuf.read(4), byteorder="little")
@ -196,7 +208,13 @@ class MessageReader:
res["SNR"] = int.from_bytes(dbuf.read(1), byteorder="little", signed=True) / 4
dbuf.read(2) # reserved
res["pubkey_prefix"] = dbuf.read(6).hex()
res["path_len"] = dbuf.read(1)[0]
plen = dbuf.read(1)[0]
if plen == 255 : # direct message
res["path_hash_mode"] = -1
res["path_len"] = plen
else:
res["path_hash_mode"] = plen >> 6
res["path_len"] = plen & 0x3F
txt_type = dbuf.read(1)[0]
res["txt_type"] = txt_type
res["sender_timestamp"] = int.from_bytes(dbuf.read(4), byteorder="little")
@ -217,7 +235,13 @@ class MessageReader:
res = {}
res["type"] = "CHAN"
res["channel_idx"] = dbuf.read(1)[0]
res["path_len"] = dbuf.read(1)[0]
plen = dbuf.read(1)[0]
if plen == 255 : # direct message
res["path_hash_mode"] = -1
res["path_len"] = plen
else:
res["path_hash_mode"] = plen >> 6
res["path_len"] = plen & 0x3F
res["txt_type"] = dbuf.read(1)[0]
res["sender_timestamp"] = int.from_bytes(dbuf.read(4), byteorder="little", signed=False)
text = dbuf.read().strip(b"\0")
@ -249,7 +273,13 @@ class MessageReader:
res["SNR"] = int.from_bytes(dbuf.read(1), byteorder="little", signed=True) / 4
dbuf.read(2) # reserved
res["channel_idx"] = dbuf.read(1)[0]
res["path_len"] = dbuf.read(1)[0]
plen = dbuf.read(1)[0]
if plen == 255 : # direct message
res["path_hash_mode"] = -1
res["path_len"] = plen
else:
res["path_hash_mode"] = plen >> 6
res["path_len"] = plen & 0x3F
res["txt_type"] = dbuf.read(1)[0]
res["sender_timestamp"] = int.from_bytes(dbuf.read(4), byteorder="little", signed=False)
text = dbuf.read()