nx_cidr.nx

buildroot/runtime/_hdl_build/nx_cidr.nx

3389 B64 linesdepth 3pulls 3 transitivereach 8 importersview sourcekind librarytopic cidr

docs dependencies structs consts functions

about

nx_cidr.nx -- CIDR longest-prefix matching for the access-provisioning wall (the network-tier + IP-allowlist layers). Pure logic over caller rule arrays; reuses nx_ipaddr (ipv4_parse) for string parsing -- aligns with the existing net stack, does NOT reinvent IP parsing. Used by nx_nettier (PUBLIC/LAN/VPN classification) and any per-area IP allowlist. license_tier: ORIGINAL

dependencies 2 imports · 2 importers

imports: nx_ipaddr.nxnx_syscalls.nx

imported by: nx_cidr_gate.nxnx_nettier.nx

structs

none

consts

44	const CIDR_ERR_FORMAT: i64 = 0 - 1
45	const CIDR_ERR_BAD_PREFIX: i64 = 0 - 2

functions

9	func cidr_mask(prefix: i64) -> i64 called by 2: cidr_match cidr_network_address
17	func cidr_match(ip: i64, netw: i64, prefix: i64) -> i64 called by 4: cidr_tier cidr_contains main main calls 1: cidr_mask
26	func cidr_tier(ip: i64, nets: i64, prefixes: i64, tiers: *i64, n: i64, default_tier: i64) -> i64 called by 2: main nt_classify calls 1: cidr_match
40	func cidr_ip(s: *u8) -> i64 { var n: i64 = 0; while s[n] != (0 as u8) { n = n + 1 } return ipv4_parse(s, n) } called by 2: main main calls 1: ipv4_parse
48	func cidr_parse(s: u8, n: i64, ip_out: i64, prefix_out: *i64) -> i64 called by 1: main calls 1: ipv4_parse
62	func cidr_network_address(ip: i64, prefix: i64) -> i64 { return (ip & cidr_mask(prefix)) & 0xFFFFFFFF } called by 1: main calls 1: cidr_mask
64	func cidr_contains(network: i64, prefix: i64, addr: i64) -> i64 { return cidr_match(addr, network, prefix) } called by 1: main calls 1: cidr_match