meshtastic-protobuf/mesh.options

# options for nanopb
# https://jpa.kapsi.fi/nanopb/docs/reference.html#proto-file-options

*macaddr max_size:6 fixed_length:true # macaddrs
*id max_size:16 # node id strings

*User.long_name max_size:40
*User.short_name max_size:5

# FIXME pick a higher number someday? or do dynamic alloc in nanopb?
*DeviceState.node_db max_count:32
*DeviceState.receive_queue max_count:32

*RouteDiscovery.route max_count:8

# FIXME, max out based on total SubPacket size And do fragmentation and reassembly (for larger payloads) at the Android layer, not the esp32 layer.
# note: this payload length is ONLY the bytes that are sent inside of the radiohead packet
*Data.payload max_size:251

# 256 bit or 128 bit psk key
*ChannelSettings.psk max_size:32
*ChannelSettings.name max_size:12

# The device code doesn't use this legacy field - though the apps still might
*Position.latitude_d type:FT_IGNORE
*Position.longitude_d type:FT_IGNORE

*MyNodeInfo.firmware_version max_size:12
*MyNodeInfo.hw_model max_size:16
*MyNodeInfo.region max_size:12

*DebugString.message max_size:256

# Note: the actual limit (because of header bytes) on the size of encrypted payloads is 251 bytes, but I use 256
# here because we might need to fill with zeros for padding to encryption block size (16 bytes per block)
*MeshPacket.encrypted max_size:256
*MeshPacket.payload anonymous_oneof:true

*SubPacket.payload anonymous_oneof:true

# Max of three ignored nodes for our testing
*UserPreferences.ignore_incoming max_count:3

# MyMessage.name         max_size:40 
# or fixed_length or fixed_count, or max_count