# Aura VPN client configuration (project §9).
# Copy to client.toml and adjust. Paths may begin with `~` (expands to your home directory).

[client]
# Human-readable client name / id.
name = "laptop"
# Server UDP socket address.
server_addr = "203.0.113.10:443"
# Outer-TLS SNI (camouflage hostname) presented to the server. Also the name verified
# inside the Aura handshake against the server certificate's SAN.
sni = "cdn.example.com"

[pki]
# Trust anchor (the Aura CA) and this client's leaf cert/key, all PEM.
# Issue with: aura pki issue-client --id laptop --out ~/.aura --ca ~/.aura
ca_cert = "~/.aura/ca.crt"
cert    = "~/.aura/client.crt"
key     = "~/.aura/client.key"

[tunnel]
# Requested TUN interface name (advisory on macOS, where the kernel assigns utunN).
tun_name = "aura0"
# Local address assigned to the TUN device, and its prefix length.
local_ip = "10.7.0.2"
prefix   = 24
# TUN MTU.
mtu = 1420
# Tunnel resolver DNS (informational; the system resolver is used in v1).
dns = "10.7.0.1"

# Split-tunnel routing: the default action plus per-destination overrides.
[tunnel.split]
# Default for destinations matching no rule below: "VPN" or "DIRECT".
default = "VPN"

# Send these directly (bypass the tunnel): RFC1918 ranges stay on the LAN...
[[tunnel.split.direct]]
cidr = "192.168.0.0/16"

[[tunnel.split.direct]]
cidr = "10.0.0.0/8"

# ...and a corporate domain egresses directly (resolved to host routes at startup).
[[tunnel.split.direct]]
domain = "intranet.example.com"

# Force a more-specific range back through the VPN (longest-prefix wins over 10.0.0.0/8).
[[tunnel.split.vpn]]
cidr = "10.7.0.0/24"

[mimicry]
# Enable traffic padding to blend packet sizes into HTTPS buckets.
padding = false

[transport]
# Fallback order tried left-to-right ("handover"): the first transport that connects wins. Aura's
# own UDP transport is primary; TCP/443 and QUIC (HTTP/3 mimicry) are fallbacks for networks that
# throttle or block plain UDP. Omitting this whole section uses ["udp","tcp","quic"] on 443/443/444.
order = ["udp", "tcp", "quic"]
# Per-transport server ports. The server IP comes from [client] server_addr above (its port there is
# ignored). The UDP transport and QUIC both ride UDP, so udp_port and quic_port MUST differ; TCP may
# reuse the UDP port number.
udp_port  = 443
tcp_port  = 443
quic_port = 444
# UDP: pad datagrams up to HTTPS size buckets to blur the on-wire size distribution.
obfuscate = true
# TCP: prepend a minimal HTTP/1.1 preamble (Host = [client] sni) so the open resembles plain HTTP.
masquerade = true