linux: add rtnetlink ifinfomsg attribute enumerals

Author: tones111

libc-test/build.rs

@@ -3669,6 +3669,9 @@ fn test_linux(target: &str) {
             // FIXME: requires Linux >= 5.7:
             "MREMAP_DONTUNMAP" if musl || sparc64 => true,
 
+            // FIXME: requires Linux >= v5.8
+            "IF_LINK_MODE_TESTING" if musl || sparc64 => true,
+
             // FIXME: Requires more recent kernel headers (5.9 / 5.11):
             | "CLOSE_RANGE_UNSHARE"
             | "CLOSE_RANGE_CLOEXEC" if musl || sparc64 => true,

libc-test/semver/linux.txt

@@ -839,6 +839,16 @@ HWTSTAMP_FILTER_PTP_V2_SYNC
 HWTSTAMP_FILTER_PTP_V2_DELAY_REQ
 HWTSTAMP_FILTER_NTP_ALL
 IBSHIFT
+IF_LINK_MODE_DEFAULT
+IF_LINK_MODE_DORMANT
+IF_LINK_MODE_TESTING
+IF_OPER_DORMANT
+IF_OPER_DOWN
+IF_OPER_LOWERLAYERDOWN
+IF_OPER_NOTPRESENT
+IF_OPER_TESTING
+IF_OPER_UNKNOWN
+IF_OPER_UP
 IFA_ADDRESS
 IFA_ANYCAST
 IFA_BROADCAST

src/unix/linux_like/linux/mod.rs

@@ -3194,6 +3194,19 @@ pub const ALG_SET_AEAD_AUTHSIZE: ::c_int = 5;
 pub const ALG_OP_DECRYPT: ::c_int = 0;
 pub const ALG_OP_ENCRYPT: ::c_int = 1;
 
+// include/uapi/linux/if.h
+pub const IF_OPER_UNKNOWN: ::c_int = 0;
+pub const IF_OPER_NOTPRESENT: ::c_int = 1;
+pub const IF_OPER_DOWN: ::c_int = 2;
+pub const IF_OPER_LOWERLAYERDOWN: ::c_int = 3;
+pub const IF_OPER_TESTING: ::c_int = 4;
+pub const IF_OPER_DORMANT: ::c_int = 5;
+pub const IF_OPER_UP: ::c_int = 6;
+
+pub const IF_LINK_MODE_DEFAULT: ::c_int = 0;
+pub const IF_LINK_MODE_DORMANT: ::c_int = 1;
+pub const IF_LINK_MODE_TESTING: ::c_int = 2;
+
 // include/uapi/linux/udp.h
 pub const UDP_CORK: ::c_int = 1;
 pub const UDP_ENCAP: ::c_int = 100;