Add additional Linux AF_PACKET options (#3540)

Author: nathaniel-bennett

libc-test/build.rs

@@ -3451,7 +3451,6 @@ fn test_linux(target: &str) {
                "netinet/ip.h",
                "netinet/tcp.h",
                "netinet/udp.h",
-               "netpacket/packet.h",
                "poll.h",
                "pthread.h",
                "pty.h",
@@ -3554,6 +3553,7 @@ fn test_linux(target: &str) {
         "linux/if_addr.h",
         "linux/if_alg.h",
         "linux/if_ether.h",
+        "linux/if_packet.h",
         "linux/if_tun.h",
         "linux/if_xdp.h",
         "linux/input.h",
@@ -3730,6 +3730,23 @@ fn test_linux(target: &str) {
         if (gnu && sparc64) && (ty == "ip_mreqn" || ty == "hwtstamp_config") {
             return true;
         }
+        // FIXME(https://github.com/rust-lang/rust/issues/43894): pass by value for structs that are not an even 32/64 bits on
+        // big-endian systems corrupts the value for unknown reasons.
+        if (sparc64 || ppc || ppc64 || s390x)
+            && (ty == "sockaddr_pkt"
+                || ty == "tpacket_auxdata"
+                || ty == "tpacket_hdr_variant1"
+                || ty == "tpacket_req3"
+                || ty == "tpacket_stats_v3"
+                || ty == "tpacket_req_u")
+        {
+            return true;
+        }
+        // FIXME: musl doesn't compile with `struct fanout_args` for unknown reasons.
+        if musl && ty == "fanout_args" {
+            return true;
+        }
+
         match ty {
             // These cannot be tested when "resolv.h" is included and are tested
             // in the `linux_elf.rs` file.

libc-test/semver/linux.txt

@@ -1805,11 +1805,38 @@ O_RSYNC
 O_SYNC
 O_TMPFILE
 PACKET_ADD_MEMBERSHIP
+PACKET_AUXDATA
+PACKET_BROADCAST
 PACKET_DROP_MEMBERSHIP
+PACKET_FANOUT
+PACKET_FANOUT_CBPF
+PACKET_FANOUT_CPU
+PACKET_FANOUT_FLAG_DEFRAG
+PACKET_FANOUT_FLAG_ROLLOVER
+PACKET_FANOUT_FLAG_UNIQUEID
+PACKET_FANOUT_HASH
+PACKET_FANOUT_LB
+PACKET_FANOUT_QM
+PACKET_FANOUT_RND
+PACKET_FANOUT_ROLLOVER
+PACKET_HOST
+PACKET_KERNEL
+PACKET_LOOPBACK
+PACKET_LOSS
 PACKET_MR_ALLMULTI
 PACKET_MR_MULTICAST
 PACKET_MR_PROMISC
 PACKET_MR_UNICAST
+PACKET_MULTICAST
+PACKET_OTHERHOST
+PACKET_OUTGOING
+PACKET_QDISC_BYPASS
+PACKET_RESERVE
+PACKET_RX_RING
+PACKET_STATISTICS
+PACKET_TIMESTAMP
+PACKET_USER
+PACKET_VERSION
 PENDIN
 PF_ALG
 PF_APPLETALK
@@ -3195,6 +3222,23 @@ TLS_GET_RECORD_TYPE
 TLS_RX
 TLS_SET_RECORD_TYPE
 TLS_TX
+TP_FT_REQ_FILL_RXHASH
+TP_STATUS_AVAILABLE
+TP_STATUS_BLK_TMO
+TP_STATUS_COPY
+TP_STATUS_CSUMNOTREADY
+TP_STATUS_CSUM_VALID
+TP_STATUS_KERNEL
+TP_STATUS_LOSING
+TP_STATUS_SENDING
+TP_STATUS_SEND_REQUEST
+TP_STATUS_TS_RAW_HARDWARE
+TP_STATUS_TS_SOFTWARE
+TP_STATUS_TS_SYS_HARDWARE
+TP_STATUS_USER
+TP_STATUS_VLAN_TPID_VALID
+TP_STATUS_VLAN_VALID
+TP_STATUS_WRONG_FORMAT
 TUN_READQ_SIZE
 TUN_TAP_DEV
 TUN_TUN_DEV
@@ -3457,6 +3501,7 @@ fanotify_event_metadata
 fanotify_init
 fanotify_mark
 fanotify_response
+fanout_args
 fchdir
 fdatasync
 fdopendir
@@ -3825,6 +3870,7 @@ sockaddr_alg
 sockaddr_can
 sockaddr_ll
 sockaddr_nl
+sockaddr_pkt
 sockaddr_vm
 splice
 spwd
@@ -3862,6 +3908,22 @@ timer_getoverrun
 timer_gettime
 timer_settime
 tmpfile64
+tpacket2_hdr
+tpacket3_hdr
+tpacket_auxdata
+tpacket_bd_header_u
+tpacket_bd_ts
+tpacket_block_desc
+tpacket_hdr
+tpacket_hdr_v1
+tpacket_hdr_variant1
+tpacket_req
+tpacket_req3
+tpacket_req_u
+tpacket_rollover_stats
+tpacket_stats
+tpacket_stats_v3
+tpacket_versions
 truncate
 truncate64
 ttyname_r

src/unix/linux_like/linux/align.rs

@@ -63,6 +63,24 @@ macro_rules! expand_align {
                 pub fd: ::c_int,
                 pub pid: ::c_int,
             }
+
+            #[repr(align(8))]
+            pub struct tpacket_rollover_stats {
+                pub tp_all: ::__u64,
+                pub tp_huge: ::__u64,
+                pub tp_failed: ::__u64,
+            }
+
+            #[repr(align(8))]
+            pub struct tpacket_hdr_v1 {
+                pub block_status: ::__u32,
+                pub num_pkts: ::__u32,
+                pub offset_to_first_pkt: ::__u32,
+                pub blk_len: ::__u32,
+                pub seq_num: ::__u64,
+                pub ts_first_pkt: ::tpacket_bd_ts,
+                pub ts_last_pkt: ::tpacket_bd_ts,
+            }
         }
 
         s_no_extra_traits! {