Added a function to determine if an interface is used for mobile data…

… and prevent its address from being returned as the local ip address
EstebanBorai · Apr 6, 2024 · e78768a · e78768a
1 parent 838aa0d
commit e78768a
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Showing 2 changed files with 9 additions and 2 deletions.
diff --git a/src/lib.rs b/src/lib.rs
@@ -124,7 +124,7 @@ pub fn local_ip() -> Result<IpAddr, Error> {
 
  ifas.into_iter()
  .find_map(|ifa| {
- if !ifa.is_loopback && ifa.addr.is_ipv4() {
+ if !ifa.is_loopback && ifa.addr.is_ipv4() && !ifa.is_mobile_data() {
  Some(ifa.addr)
  } else {
  None
@@ -196,7 +196,7 @@ pub fn local_ipv6() -> Result<IpAddr, Error> {
 
  ifas.into_iter()
  .find_map(|ifa| {
- if !ifa.is_loopback && ifa.addr.is_ipv6() {
+ if !ifa.is_loopback && ifa.addr.is_ipv6() && !ifa.is_mobile_data() {
  Some(ifa.addr)
  } else {
  None

diff --git a/src/unix.rs b/src/unix.rs
@@ -45,6 +45,13 @@ pub(crate) struct AfInetInfo {
  pub is_loopback: bool,
 }
 
+impl AfInetInfo {
+ /// Determines if an interface is used for mobile_data
+ pub(crate) fn is_mobile_data(&self) -> bool {
+ self.iname.contains("rmnet_data")
+ }
+}
+
 // Internal method to list AF_INET info in a struct. This method is used by
 // list_afiinet_netifas and local_ip,
 pub(crate) fn list_afinet_netifas_info() -> Result<Vec<AfInetInfo>, Error> {