Fails to build on BSDs (except macOS)

[jbeich]

Depends on rust-lang/libc#3711. See also downstream fix (routing untested).

$ rustc -vV
rustc 1.78.0 (9b00956e5 2024-04-29) (built from a source tarball)
binary: rustc
commit-hash: 9b00956e56009bab2aa15d7bff10916599e3d6d6
commit-date: 2024-04-29
host: x86_64-unknown-freebsd
release: 1.78.0
LLVM version: 18.1.2

$ cargo build
[...]
error[E0425]: cannot find value `RTAX_GATEWAY` in crate `libc`
  --> iroh-net/src/net/interfaces/bsd.rs:36:46
   |
36 |         if let Some(gw) = rm.addrs.get(libc::RTAX_GATEWAY as usize) {
   |                                              ^^^^^^^^^^^^ not found in `libc`

error[E0425]: cannot find value `RTF_GATEWAY` in crate `libc`
  --> iroh-net/src/net/interfaces/bsd.rs:81:25
   |
81 |     if rm.flags & libc::RTF_GATEWAY as u32 == 0 {
   |                         ^^^^^^^^^^^ not found in `libc`

error[E0425]: cannot find value `RTF_IFSCOPE` in crate `libc`
  --> iroh-net/src/net/interfaces/bsd.rs:85:25
   |
85 |     if rm.flags & libc::RTF_IFSCOPE as u32 != 0 {
   |                         ^^^^^^^^^^^ not found in `libc`

error[E0425]: cannot find value `RTAX_NETMASK` in crate `libc`
  --> iroh-net/src/net/interfaces/bsd.rs:90:32
   |
90 |     if rm.addrs.len() <= libc::RTAX_NETMASK as usize {
   |                                ^^^^^^^^^^^^ not found in `libc`

error[E0425]: cannot find value `RTAX_DST` in crate `libc`
  --> iroh-net/src/net/interfaces/bsd.rs:94:40
   |
94 |     let Some(dst) = rm.addrs.get(libc::RTAX_DST as usize) else {
   |                                        ^^^^^^^^ not found in `libc`

error[E0425]: cannot find value `RTAX_NETMASK` in crate `libc`
  --> iroh-net/src/net/interfaces/bsd.rs:97:44
   |
97 |     let Some(netmask) = rm.addrs.get(libc::RTAX_NETMASK as usize) else {
   |                                            ^^^^^^^^^^^^ not found in `libc`

error[E0425]: cannot find value `RTA_IFP` in crate `libc`
   --> iroh-net/src/net/interfaces/bsd.rs:282:49
    |
282 |                 if attrs as libc::c_int & libc::RTA_IFP == 0 {
    |                                                 ^^^^^^^ not found in `libc`

error[E0425]: cannot find value `probe_routing_stack` in this scope
   --> iroh-net/src/net/interfaces/bsd.rs:368:54
    |
368 | static ROUTING_STACK: Lazy<RoutingStack> = Lazy::new(probe_routing_stack);
    |                                                      ^^^^^^^^^^^^^^^^^^^ not found in this scope

error[E0425]: cannot find value `RTAX_MAX` in crate `libc`
   --> iroh-net/src/net/interfaces/bsd.rs:753:46
    |
753 |     let mut addrs = Vec::with_capacity(libc::RTAX_MAX as usize);
    |                                              ^^^^^^^^ not found in `libc`

error[E0425]: cannot find value `RTAX_MAX` in crate `libc`
   --> iroh-net/src/net/interfaces/bsd.rs:757:23
    |
757 |     for i in 0..libc::RTAX_MAX as usize {
    |                       ^^^^^^^^ not found in `libc`
    |
help: you might have meant to write `.` instead of `..`
    |
757 -     for i in 0..libc::RTAX_MAX as usize {
757 +     for i in 0.libc::RTAX_MAX as usize {
    |

error[E0425]: cannot find value `RTAX_BRD` in crate `libc`
   --> iroh-net/src/net/interfaces/bsd.rs:765:23
    |
765 |         if i <= libc::RTAX_BRD as usize {
    |                       ^^^^^^^^ not found in `libc`

error[E0425]: cannot find value `SIZEOF_SOCKADDR_INET` in this scope
   --> iroh-net/src/net/interfaces/bsd.rs:818:26
    |
818 |             if b.len() < SIZEOF_SOCKADDR_INET {
    |                          ^^^^^^^^^^^^^^^^^^^^ not found in this scope

error[E0425]: cannot find value `SIZEOF_SOCKADDR_INET6` in this scope
   --> iroh-net/src/net/interfaces/bsd.rs:826:26
    |
826 |             if b.len() < SIZEOF_SOCKADDR_INET6 {
    |                          ^^^^^^^^^^^^^^^^^^^^^ not found in this scope

error[E0425]: cannot find value `SIZEOF_SOCKADDR_INET6` in this scope
   --> iroh-net/src/net/interfaces/bsd.rs:906:36
    |
906 |     let addr = if b[0] as usize == SIZEOF_SOCKADDR_INET6 {
    |                                    ^^^^^^^^^^^^^^^^^^^^^ not found in this scope

error[E0425]: cannot find value `SIZEOF_SOCKADDR_INET` in this scope
   --> iroh-net/src/net/interfaces/bsd.rs:922:32
    |
922 |     } else if b[0] as usize == SIZEOF_SOCKADDR_INET {
    |                                ^^^^^^^^^^^^^^^^^^^^ not found in this scope

error[E0425]: cannot find value `RTAX_IFP` in crate `libc`
  --> iroh-net/src/net/netmon/bsd.rs:70:53
   |
70 |             if let Some(addr) = msg.addrs.get(libc::RTAX_IFP as usize) {
   |                                                     ^^^^^^^^ not found in `libc`

error[E0425]: cannot find value `RTAX_DST` in crate `libc`
  --> iroh-net/src/net/netmon/bsd.rs:81:53
   |
81 |             if let Some(addr) = msg.addrs.get(libc::RTAX_DST as usize) {
   |                                                     ^^^^^^^^ not found in `libc`

error[E0308]: mismatched types
   --> iroh-net/src/net/interfaces/bsd.rs:131:25
    |
131 |         Ok(res) => Some(res),
    |                    ---- ^^^ expected `Vec<RouteMessage>`, found `Vec<WireMessage>`
    |                    |
    |                    arguments to this enum variant are incorrect
    |
    = note: expected struct `Vec<RouteMessage>`
               found struct `Vec<WireMessage>`
help: the type constructed contains `Vec<WireMessage>` due to the type of the argument passed
   --> iroh-net/src/net/interfaces/bsd.rs:131:20
    |
131 |         Ok(res) => Some(res),
    |                    ^^^^^---^
    |                         |
    |                         this argument influences the type of `Some`
note: tuple variant defined here
   --> /usr/ports/lang/rust/work/rustc-1.78.0-src/library/core/src/option.rs:580:5

error[E0425]: cannot find function `is_valid_rib_type` in this scope
   --> iroh-net/src/net/interfaces/bsd.rs:378:9
    |
378 |     if !is_valid_rib_type(typ) {
    |         ^^^^^^^^^^^^^^^^^ not found in this scope

Some errors have detailed explanations: E0308, E0425.
For more information about an error, try `rustc --explain E0308`.

[dignifiedquire]

Want to submit the patch as a PR? Or do you want to us to pull it in ourselves?

[dignifiedquire]

Any suggestions on how to get CI setup for freebsd? It's hard to get it going with no developer on our team having experience with BSD

[dignifiedquire]

found some cross images for freebsd, which should get us some baseline compat

[dignifiedquire]

@jbeich I have a patched version compiling in #2311
unfortunately linking on 32 bit fails inside of cross and I don't have access to a running BSD system, so any testing on your side would be appreciated

[jbeich]

Want to submit the patch as a PR?

No. I'm a mere packager: don't use iroh outside of jumpy and my patch is likely incorrect on FreeBSD and incomplete for other BSDs.

Besides, FreeBSD >= 13.2 also supports AF_NETLINK similar to Linux.

Any suggestions on how to get CI setup for freebsd?

• dragonflybsd-vm, freebsd-vm, netbsd-vm, openbsd-vm (non-native: slow and unstable but fine for small projects)
• cross-platform-actions (lacks DragonFly BSD, non-native: slow and unstable but fine for small projects)
• sourcehut (lacks DragonFly BSD, maybe non-free)
• CirrusCI (only FreeBSD, easy to hit free-tier monthly limits in large projects)
• TravisCI (only FreeBSD, abandonware)