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freebsd/netlink: hide feature between "future-freebsd-netlink" flag
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To allow the "Netlink on FreeBSD" feature to be usable before 0.3 gets
released, this builds on top of both the netlink feature patch from rust-lang#3201
if explicitely requested through a feature flag, but by default
provides the ifmib constants where they are located in previous 0.2
releases.

Since this relies on creating the netlink constants in a separate
module, and it seems we cannot check those automatically, avoids
testing them.

Signed-off-by: Yann Dirson <[email protected]>
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ydirson committed May 22, 2024
1 parent 121aada commit f210e11
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Showing 4 changed files with 110 additions and 99 deletions.
3 changes: 3 additions & 0 deletions Cargo.toml
Original file line number Diff line number Diff line change
Expand Up @@ -141,6 +141,9 @@ extra_traits = []
const-extern-fn = []
# use_std is deprecated, use `std` instead
use_std = ['std']
# get Netlink support on FreeBSD, but with breaking API change,
# see https://github.com/rust-lang/libc/pull/3367
future-freebsd-netlink = []

[workspace]
members = ["libc-test"]
4 changes: 3 additions & 1 deletion libc-test/build.rs
Original file line number Diff line number Diff line change
Expand Up @@ -2428,7 +2428,9 @@ fn test_freebsd(target: &str) {
| "CTRL_ATTR_MCAST_GRP_UNSPEC"
| "CTRL_ATTR_MCAST_GRP_NAME"
| "CTRL_ATTR_MCAST_GRP_ID"
if Some(13) > freebsd_ver =>
if env!("CARGO_PKG_VERSION_MAJOR") == "0"
&& env!("CARGO_PKG_VERSION_MINOR") == "2"
|| Some(13) > freebsd_ver =>
{
true
}
Expand Down
107 changes: 9 additions & 98 deletions src/unix/bsd/freebsdlike/freebsd/mod.rs
Original file line number Diff line number Diff line change
Expand Up @@ -3097,104 +3097,6 @@ pub const SO_TS_MONOTONIC: ::c_int = 3;
pub const SO_TS_DEFAULT: ::c_int = SO_TS_REALTIME_MICRO;
pub const SO_TS_CLOCK_MAX: ::c_int = SO_TS_MONOTONIC;

/// netlink constants

// sys/socket.h
pub const AF_NETLINK: ::c_int = 38;
pub const PF_NETLINK: ::c_int = AF_NETLINK;

// netlink/netlink.h
pub const SOL_NETLINK: ::c_int = 270;
pub const NETLINK_ADD_MEMBERSHIP: ::c_int = 1;
pub const NETLINK_DROP_MEMBERSHIP: ::c_int = 2;
pub const NETLINK_PKTINFO: ::c_int = 3;
pub const NETLINK_BROADCAST_ERROR: ::c_int = 4;
pub const NETLINK_NO_ENOBUFS: ::c_int = 5;
pub const NETLINK_RX_RING: ::c_int = 6;
pub const NETLINK_TX_RING: ::c_int = 7;
pub const NETLINK_LISTEN_ALL_NSID: ::c_int = 8;
pub const NETLINK_LIST_MEMBERSHIPS: ::c_int = 9;
pub const NETLINK_CAP_ACK: ::c_int = 10;
pub const NETLINK_EXT_ACK: ::c_int = 11;
pub const NETLINK_GET_STRICT_CHK: ::c_int = 12;
//
pub const NLM_F_REQUEST: ::c_int = 0x01;
pub const NLM_F_MULTI: ::c_int = 0x02;
pub const NLM_F_ACK: ::c_int = 0x04;
pub const NLM_F_ECHO: ::c_int = 0x08;
pub const NLM_F_DUMP_INTR: ::c_int = 0x10;
pub const NLM_F_DUMP_FILTERED: ::c_int = 0x20;
//
pub const NLM_F_ROOT: ::c_int = 0x100;
pub const NLM_F_MATCH: ::c_int = 0x200;
pub const NLM_F_ATOMIC: ::c_int = 0x400;
pub const NLM_F_DUMP: ::c_int = NLM_F_ROOT | NLM_F_MATCH;
//
pub const NLM_F_REPLACE: ::c_int = 0x100;
pub const NLM_F_EXCL: ::c_int = 0x200;
pub const NLM_F_CREATE: ::c_int = 0x400;
pub const NLM_F_APPEND: ::c_int = 0x800;
//
pub const NLM_F_NONREC: ::c_int = 0x100;
//
pub const NLM_F_CAPPED: ::c_int = 0x100;
pub const NLM_F_ACK_TLVS: ::c_int = 0x200;
//
pub const NLMSG_NOOP: ::c_int = 0x1;
pub const NLMSG_ERROR: ::c_int = 0x2;
pub const NLMSG_DONE: ::c_int = 0x3;
pub const NLMSG_OVERRUN: ::c_int = 0x4;
//
pub const NETLINK_ROUTE: ::c_int = 0;
pub const NETLINK_UNUSED: ::c_int = 1;
pub const NETLINK_USERSOCK: ::c_int = 2;
pub const NETLINK_FIREWALL: ::c_int = 3;
pub const NETLINK_SOCK_DIAG: ::c_int = 4;
pub const NETLINK_NFLOG: ::c_int = 5;
pub const NETLINK_XFRM: ::c_int = 6;
pub const NETLINK_SELINUX: ::c_int = 7;
pub const NETLINK_ISCSI: ::c_int = 8;
pub const NETLINK_AUDIT: ::c_int = 9;
pub const NETLINK_FIB_LOOKUP: ::c_int = 10;
pub const NETLINK_CONNECTOR: ::c_int = 11;
pub const NETLINK_NETFILTER: ::c_int = 12;
pub const NETLINK_IP6_FW: ::c_int = 13;
pub const NETLINK_DNRTMSG: ::c_int = 14;
pub const NETLINK_KOBJECT_UEVENT: ::c_int = 15;
pub const NETLINK_GENERIC: ::c_int = 16;
//
const NL_ITEM_ALIGN_SIZE: ::c_int = 4; // mem::size_of::<u32>(); FIXME accept new dep?
pub const NLMSG_ALIGNTO: ::c_int = NL_ITEM_ALIGN_SIZE;

// netlink/netlink_generic.h
pub const CTRL_CMD_UNSPEC: ::c_int = 0;
pub const CTRL_CMD_NEWFAMILY: ::c_int = 1;
pub const CTRL_CMD_DELFAMILY: ::c_int = 2;
pub const CTRL_CMD_GETFAMILY: ::c_int = 3;
pub const CTRL_CMD_NEWOPS: ::c_int = 4;
pub const CTRL_CMD_DELOPS: ::c_int = 5;
pub const CTRL_CMD_GETOPS: ::c_int = 6;
pub const CTRL_CMD_NEWMCAST_GRP: ::c_int = 7;
pub const CTRL_CMD_DELMCAST_GRP: ::c_int = 8;
pub const CTRL_CMD_GETMCAST_GRP: ::c_int = 9;
pub const CTRL_CMD_GETPOLICY: ::c_int = 10;
//
pub const CTRL_ATTR_UNSPEC: ::c_int = 0;
pub const CTRL_ATTR_FAMILY_ID: ::c_int = 1;
pub const CTRL_ATTR_FAMILY_NAME: ::c_int = 2;
pub const CTRL_ATTR_VERSION: ::c_int = 3;
pub const CTRL_ATTR_HDRSIZE: ::c_int = 4;
pub const CTRL_ATTR_MAXATTR: ::c_int = 5;
pub const CTRL_ATTR_OPS: ::c_int = 6;
pub const CTRL_ATTR_MCAST_GROUPS: ::c_int = 7;
pub const CTRL_ATTR_POLICY: ::c_int = 8;
pub const CTRL_ATTR_OP_POLICY: ::c_int = 9;
pub const CTRL_ATTR_OP: ::c_int = 10;
//
pub const CTRL_ATTR_MCAST_GRP_UNSPEC: ::c_int = 0;
pub const CTRL_ATTR_MCAST_GRP_NAME: ::c_int = 1;
pub const CTRL_ATTR_MCAST_GRP_ID: ::c_int = 2;

pub const LOCAL_CREDS: ::c_int = 2;
pub const LOCAL_CREDS_PERSISTENT: ::c_int = 3;
pub const LOCAL_CONNWAIT: ::c_int = 4;
Expand Down Expand Up @@ -5841,3 +5743,12 @@ cfg_if! {

// sys/net/if_mib.h
pub mod ifmib;

cfg_if! {
if #[cfg(feature = "future-freebsd-netlink")] {
mod netlink;
pub use self::netlink::*;
} else {
pub use ifmib::*;
}
}
95 changes: 95 additions & 0 deletions src/unix/bsd/freebsdlike/freebsd/netlink.rs
Original file line number Diff line number Diff line change
@@ -0,0 +1,95 @@
// sys/socket.h
pub const AF_NETLINK: ::c_int = 38;
pub const PF_NETLINK: ::c_int = AF_NETLINK;

// netlink/netlink.h
pub const SOL_NETLINK: ::c_int = 270;
pub const NETLINK_ADD_MEMBERSHIP: ::c_int = 1;
pub const NETLINK_DROP_MEMBERSHIP: ::c_int = 2;
pub const NETLINK_PKTINFO: ::c_int = 3;
pub const NETLINK_BROADCAST_ERROR: ::c_int = 4;
pub const NETLINK_NO_ENOBUFS: ::c_int = 5;
pub const NETLINK_RX_RING: ::c_int = 6;
pub const NETLINK_TX_RING: ::c_int = 7;
pub const NETLINK_LISTEN_ALL_NSID: ::c_int = 8;
pub const NETLINK_LIST_MEMBERSHIPS: ::c_int = 9;
pub const NETLINK_CAP_ACK: ::c_int = 10;
pub const NETLINK_EXT_ACK: ::c_int = 11;
pub const NETLINK_GET_STRICT_CHK: ::c_int = 12;
//
pub const NLM_F_REQUEST: ::c_int = 0x01;
pub const NLM_F_MULTI: ::c_int = 0x02;
pub const NLM_F_ACK: ::c_int = 0x04;
pub const NLM_F_ECHO: ::c_int = 0x08;
pub const NLM_F_DUMP_INTR: ::c_int = 0x10;
pub const NLM_F_DUMP_FILTERED: ::c_int = 0x20;
//
pub const NLM_F_ROOT: ::c_int = 0x100;
pub const NLM_F_MATCH: ::c_int = 0x200;
pub const NLM_F_ATOMIC: ::c_int = 0x400;
pub const NLM_F_DUMP: ::c_int = NLM_F_ROOT | NLM_F_MATCH;
//
pub const NLM_F_REPLACE: ::c_int = 0x100;
pub const NLM_F_EXCL: ::c_int = 0x200;
pub const NLM_F_CREATE: ::c_int = 0x400;
pub const NLM_F_APPEND: ::c_int = 0x800;
//
pub const NLM_F_NONREC: ::c_int = 0x100;
//
pub const NLM_F_CAPPED: ::c_int = 0x100;
pub const NLM_F_ACK_TLVS: ::c_int = 0x200;
//
pub const NLMSG_NOOP: ::c_int = 0x1;
pub const NLMSG_ERROR: ::c_int = 0x2;
pub const NLMSG_DONE: ::c_int = 0x3;
pub const NLMSG_OVERRUN: ::c_int = 0x4;
//
pub const NETLINK_ROUTE: ::c_int = 0;
pub const NETLINK_UNUSED: ::c_int = 1;
pub const NETLINK_USERSOCK: ::c_int = 2;
pub const NETLINK_FIREWALL: ::c_int = 3;
pub const NETLINK_SOCK_DIAG: ::c_int = 4;
pub const NETLINK_NFLOG: ::c_int = 5;
pub const NETLINK_XFRM: ::c_int = 6;
pub const NETLINK_SELINUX: ::c_int = 7;
pub const NETLINK_ISCSI: ::c_int = 8;
pub const NETLINK_AUDIT: ::c_int = 9;
pub const NETLINK_FIB_LOOKUP: ::c_int = 10;
pub const NETLINK_CONNECTOR: ::c_int = 11;
pub const NETLINK_NETFILTER: ::c_int = 12;
pub const NETLINK_IP6_FW: ::c_int = 13;
pub const NETLINK_DNRTMSG: ::c_int = 14;
pub const NETLINK_KOBJECT_UEVENT: ::c_int = 15;
pub const NETLINK_GENERIC: ::c_int = 16;
//
const NL_ITEM_ALIGN_SIZE: ::c_int = 4; // mem::size_of::<u32>(); FIXME accept new dep?
pub const NLMSG_ALIGNTO: ::c_int = NL_ITEM_ALIGN_SIZE;

// netlink/netlink_generic.h
pub const CTRL_CMD_UNSPEC: ::c_int = 0;
pub const CTRL_CMD_NEWFAMILY: ::c_int = 1;
pub const CTRL_CMD_DELFAMILY: ::c_int = 2;
pub const CTRL_CMD_GETFAMILY: ::c_int = 3;
pub const CTRL_CMD_NEWOPS: ::c_int = 4;
pub const CTRL_CMD_DELOPS: ::c_int = 5;
pub const CTRL_CMD_GETOPS: ::c_int = 6;
pub const CTRL_CMD_NEWMCAST_GRP: ::c_int = 7;
pub const CTRL_CMD_DELMCAST_GRP: ::c_int = 8;
pub const CTRL_CMD_GETMCAST_GRP: ::c_int = 9;
pub const CTRL_CMD_GETPOLICY: ::c_int = 10;
//
pub const CTRL_ATTR_UNSPEC: ::c_int = 0;
pub const CTRL_ATTR_FAMILY_ID: ::c_int = 1;
pub const CTRL_ATTR_FAMILY_NAME: ::c_int = 2;
pub const CTRL_ATTR_VERSION: ::c_int = 3;
pub const CTRL_ATTR_HDRSIZE: ::c_int = 4;
pub const CTRL_ATTR_MAXATTR: ::c_int = 5;
pub const CTRL_ATTR_OPS: ::c_int = 6;
pub const CTRL_ATTR_MCAST_GROUPS: ::c_int = 7;
pub const CTRL_ATTR_POLICY: ::c_int = 8;
pub const CTRL_ATTR_OP_POLICY: ::c_int = 9;
pub const CTRL_ATTR_OP: ::c_int = 10;
//
pub const CTRL_ATTR_MCAST_GRP_UNSPEC: ::c_int = 0;
pub const CTRL_ATTR_MCAST_GRP_NAME: ::c_int = 1;
pub const CTRL_ATTR_MCAST_GRP_ID: ::c_int = 2;

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