Auto merge of #2105 - tormol:udx, r=JohnTitor

Add more unix domain socket peer information to more targets

* Add NetBSD peer credentials struct `unpcbid` and socket option `SO_PEEREID` (similar to Linux struct `ucred`).
  (and some other socket options too along the way)
* Add `struct xucred`, `LOCAL_PEERCRED` and related to DragonFly BSD too.
* Add new `cr_pid` field to FreeBSD `struct xucred` (added in FreeBSD 13).
  It is added through an union as in the C header to make sure the alignment is correct, but could probably be a simple field with padding too.
* Add `SO_PEERSEC` and `SO_PASSEC` to Android and all Linux architectures that they hadn't already been added to.

21 files changed, 147 insertions, 13 deletions

diff --git a/libc-test/build.rs b/libc-test/build.rs
index 99763e29aa..978aec7781 100755
--- a/libc-test/build.rs
+++ b/libc-test/build.rs
@@ -1821,6 +1821,9 @@ fn test_freebsd(target: &str) {
     });
 
     cfg.skip_struct(move |ty| {
+        if ty.starts_with("__c_anonymous_") {
+            return true;
+        }
         match ty {
             // `mmsghdr` is not available in FreeBSD 10
             "mmsghdr" if Some(10) == freebsd_ver => true,
@@ -1898,6 +1901,9 @@ fn test_freebsd(target: &str) {
             ("Elf32_Phdr", "p_type") => true,
             ("Elf64_Phdr", "p_type") => true,
 
+            // not available until FreeBSD 12, and is an anonymous union there.
+            ("xucred", "cr_pid__c_anonymous_union") => true,
+
             _ => false,
         }
     });
diff --git a/src/unix/bsd/freebsdlike/dragonfly/mod.rs b/src/unix/bsd/freebsdlike/dragonfly/mod.rs
index 0330183d3f..7056cc5484 100644
--- a/src/unix/bsd/freebsdlike/dragonfly/mod.rs
+++ b/src/unix/bsd/freebsdlike/dragonfly/mod.rs
@@ -171,6 +171,14 @@ s! {
         pub sdl_route: [::c_ushort; 16],
     }
 
+    pub struct xucred {
+        pub cr_version: ::c_uint,
+        pub cr_uid: ::uid_t,
+        pub cr_ngroups: ::c_short,
+        pub cr_groups: [::gid_t; 16],
+        __cr_unused1: *mut ::c_void,
+    }
+
     pub struct stack_t {
         pub ss_sp: *mut ::c_char,
         pub ss_size: ::size_t,
@@ -238,7 +246,6 @@ s_no_extra_traits! {
         pub sigev_value: ::sigval,
         __unused3: *mut ::c_void        //actually a function pointer
     }
-
 }
 
 cfg_if! {
diff --git a/src/unix/bsd/freebsdlike/freebsd/mod.rs b/src/unix/bsd/freebsdlike/freebsd/mod.rs
index 04bc48dcd6..18a38bd533 100644
--- a/src/unix/bsd/freebsdlike/freebsd/mod.rs
+++ b/src/unix/bsd/freebsdlike/freebsd/mod.rs
@@ -89,14 +89,6 @@ s! {
         pub msg_ctime: ::time_t,
     }
 
-    pub struct xucred {
-        pub cr_version: ::c_uint,
-        pub cr_uid: ::uid_t,
-        pub cr_ngroups: ::c_short,
-        pub cr_groups: [::gid_t;16],
-        __cr_unused1: *mut ::c_void,
-    }
-
     pub struct stack_t {
         pub ss_sp: *mut ::c_void,
         pub ss_size: ::size_t,
@@ -143,6 +135,23 @@ s_no_extra_traits! {
         pub __ut_spare: [::c_char; 64],
     }
 
+    #[cfg(libc_union)]
+    pub union __c_anonymous_cr_pid {
+        __cr_unused: *mut ::c_void,
+        pub cr_pid: ::pid_t,
+    }
+
+    pub struct xucred {
+        pub cr_version: ::c_uint,
+        pub cr_uid: ::uid_t,
+        pub cr_ngroups: ::c_short,
+        pub cr_groups: [::gid_t; 16],
+        #[cfg(libc_union)]
+        pub cr_pid__c_anonymous_union: __c_anonymous_cr_pid,
+        #[cfg(not(libc_union))]
+        __cr_unused1: *mut ::c_void,
+    }
+
     pub struct sockaddr_dl {
         pub sdl_len: ::c_uchar,
         pub sdl_family: ::c_uchar,
@@ -225,6 +234,73 @@ cfg_if! {
             }
         }
 
+        #[cfg(libc_union)]
+        impl PartialEq for __c_anonymous_cr_pid {
+            fn eq(&self, other: &__c_anonymous_cr_pid) -> bool {
+                unsafe { self.cr_pid == other.cr_pid}
+            }
+        }
+        #[cfg(libc_union)]
+        impl Eq for __c_anonymous_cr_pid {}
+        #[cfg(libc_union)]
+        impl ::fmt::Debug for __c_anonymous_cr_pid {
+            fn fmt(&self, f: &mut ::fmt::Formatter) -> ::fmt::Result {
+                f.debug_struct("cr_pid")
+                    .field("cr_pid", unsafe { &self.cr_pid })
+                    .finish()
+            }
+        }
+        #[cfg(libc_union)]
+        impl ::hash::Hash for __c_anonymous_cr_pid {
+            fn hash<H: ::hash::Hasher>(&self, state: &mut H) {
+                unsafe { self.cr_pid.hash(state) };
+            }
+        }
+
+        impl PartialEq for xucred {
+            fn eq(&self, other: &xucred) -> bool {
+                #[cfg(libc_union)]
+                let equal_cr_pid = self.cr_pid__c_anonymous_union
+                    == other.cr_pid__c_anonymous_union;
+                #[cfg(not(libc_union))]
+                let equal_cr_pid = self.__cr_unused1 == other.__cr_unused1;
+
+                self.cr_version == other.cr_version
+                    && self.cr_uid == other.cr_uid
+                    && self.cr_ngroups == other.cr_ngroups
+                    && self.cr_groups == other.cr_groups
+                    && equal_cr_pid
+            }
+        }
+        impl Eq for xucred {}
+        impl ::fmt::Debug for xucred {
+            fn fmt(&self, f: &mut ::fmt::Formatter) -> ::fmt::Result {
+                let mut struct_formatter = f.debug_struct("xucred");
+                struct_formatter.field("cr_version", &self.cr_version);
+                struct_formatter.field("cr_uid", &self.cr_uid);
+                struct_formatter.field("cr_ngroups", &self.cr_ngroups);
+                struct_formatter.field("cr_groups", &self.cr_groups);
+                #[cfg(libc_union)]
+                struct_formatter.field(
+                    "cr_pid__c_anonymous_union",
+                    &self.cr_pid__c_anonymous_union
+                );
+                struct_formatter.finish()
+            }
+        }
+        impl ::hash::Hash for xucred {
+            fn hash<H: ::hash::Hasher>(&self, state: &mut H) {
+                self.cr_version.hash(state);
+                self.cr_uid.hash(state);
+                self.cr_ngroups.hash(state);
+                self.cr_groups.hash(state);
+                #[cfg(libc_union)]
+                self.cr_pid__c_anonymous_union.hash(state);
+                #[cfg(not(libc_union))]
+                self.__cr_unused1.hash(state);
+            }
+        }
+
         impl PartialEq for sockaddr_dl {
             fn eq(&self, other: &sockaddr_dl) -> bool {
                 self.sdl_len == other.sdl_len
@@ -629,7 +705,6 @@ pub const SO_PROTOCOL: ::c_int = 0x1016;
 pub const SO_PROTOTYPE: ::c_int = SO_PROTOCOL;
 pub const SO_VENDOR: ::c_int = 0x80000000;
 
-pub const LOCAL_PEERCRED: ::c_int = 1;
 pub const LOCAL_CREDS: ::c_int = 2;
 pub const LOCAL_CONNWAIT: ::c_int = 4;
 pub const LOCAL_VENDOR: ::c_int = SO_VENDOR;
@@ -1103,9 +1178,6 @@ pub const _PC_ACL_NFS4: ::c_int = 64;
 
 pub const _SC_CPUSET_SIZE: ::c_int = 122;
 
-pub const XU_NGROUPS: ::c_int = 16;
-pub const XUCRED_VERSION: ::c_uint = 0;
-
 // Flags which can be passed to pdfork(2)
 pub const PD_DAEMON: ::c_int = 0x00000001;
 pub const PD_CLOEXEC: ::c_int = 0x00000002;
diff --git a/src/unix/bsd/freebsdlike/mod.rs b/src/unix/bsd/freebsdlike/mod.rs
index 94d30972e8..32bf7e7e7b 100644
--- a/src/unix/bsd/freebsdlike/mod.rs
+++ b/src/unix/bsd/freebsdlike/mod.rs
@@ -947,6 +947,8 @@ pub const SO_RCVTIMEO: ::c_int = 0x1006;
 pub const SO_ERROR: ::c_int = 0x1007;
 pub const SO_TYPE: ::c_int = 0x1008;
 
+pub const LOCAL_PEERCRED: ::c_int = 1;
+
 pub const SHUT_RD: ::c_int = 0;
 pub const SHUT_WR: ::c_int = 1;
 pub const SHUT_RDWR: ::c_int = 2;
@@ -1133,6 +1135,9 @@ pub const ST_NOSUID: ::c_ulong = 2;
 
 pub const NI_MAXHOST: ::size_t = 1025;
 
+pub const XU_NGROUPS: ::c_int = 16;
+pub const XUCRED_VERSION: ::c_uint = 0;
+
 pub const RTLD_LOCAL: ::c_int = 0;
 pub const RTLD_NODELETE: ::c_int = 0x1000;
 pub const RTLD_NOLOAD: ::c_int = 0x2000;
diff --git a/src/unix/bsd/netbsdlike/netbsd/mod.rs b/src/unix/bsd/netbsdlike/netbsd/mod.rs
index 7833138798..b789f47ec9 100644
--- a/src/unix/bsd/netbsdlike/netbsd/mod.rs
+++ b/src/unix/bsd/netbsdlike/netbsd/mod.rs
@@ -299,6 +299,12 @@ s! {
         pub sc_groups: [::gid_t; 1],
     }
 
+    pub struct unpcbid {
+        pub unp_pid: ::pid_t,
+        pub unp_euid: ::uid_t,
+        pub unp_egid: ::gid_t,
+    }
+
     pub struct sockaddr_dl {
         pub sdl_len: ::c_uchar,
         pub sdl_family: ::c_uchar,
@@ -1047,6 +1053,12 @@ pub const SO_TIMESTAMP: ::c_int = 0x2000;
 pub const SO_OVERFLOWED: ::c_int = 0x1009;
 pub const SO_NOHEADER: ::c_int = 0x100a;
 
+// http://cvsweb.netbsd.org/bsdweb.cgi/src/sys/sys/un.h?annotate
+pub const LOCAL_OCREDS: ::c_int = 0x0001; // pass credentials to receiver
+pub const LOCAL_CONNWAIT: ::c_int = 0x0002; // connects block until accepted
+pub const LOCAL_PEEREID: ::c_int = 0x0003; // get peer identification
+pub const LOCAL_CREDS: ::c_int = 0x0004; // pass credentials to receiver
+
 // https://github.com/NetBSD/src/blob/trunk/sys/net/if.h#L373
 pub const IFF_UP: ::c_int = 0x0001; // interface is up
 pub const IFF_BROADCAST: ::c_int = 0x0002; // broadcast address valid
diff --git a/src/unix/linux_like/android/mod.rs b/src/unix/linux_like/android/mod.rs
index f1d6ef4b2b..a86bf96f94 100644
--- a/src/unix/linux_like/android/mod.rs
+++ b/src/unix/linux_like/android/mod.rs
@@ -1078,8 +1078,10 @@ pub const SO_SNDTIMEO: ::c_int = 21;
 pub const SO_BINDTODEVICE: ::c_int = 25;
 pub const SO_TIMESTAMP: ::c_int = 29;
 pub const SO_ACCEPTCONN: ::c_int = 30;
+pub const SO_PEERSEC: ::c_int = 31;
 pub const SO_SNDBUFFORCE: ::c_int = 32;
 pub const SO_RCVBUFFORCE: ::c_int = 33;
+pub const SO_PASSSEC: ::c_int = 34;
 pub const SO_MARK: ::c_int = 36;
 pub const SO_PROTOCOL: ::c_int = 38;
 pub const SO_DOMAIN: ::c_int = 39;
diff --git a/src/unix/linux_like/linux/gnu/b32/arm/mod.rs b/src/unix/linux_like/linux/gnu/b32/arm/mod.rs
index d084450b9f..86ba299775 100644
--- a/src/unix/linux_like/linux/gnu/b32/arm/mod.rs
+++ b/src/unix/linux_like/linux/gnu/b32/arm/mod.rs
@@ -321,8 +321,10 @@ pub const SO_RCVLOWAT: ::c_int = 18;
 pub const SO_SNDLOWAT: ::c_int = 19;
 pub const SO_RCVTIMEO: ::c_int = 20;
 pub const SO_SNDTIMEO: ::c_int = 21;
+pub const SO_PEERSEC: ::c_int = 31;
 pub const SO_SNDBUFFORCE: ::c_int = 32;
 pub const SO_RCVBUFFORCE: ::c_int = 33;
+pub const SO_PASSSEC: ::c_int = 34;
 
 pub const SA_SIGINFO: ::c_int = 0x00000004;
 pub const SA_NOCLDWAIT: ::c_int = 0x00000002;
diff --git a/src/unix/linux_like/linux/gnu/b32/powerpc.rs b/src/unix/linux_like/linux/gnu/b32/powerpc.rs
index c22b792402..e3483cd592 100644
--- a/src/unix/linux_like/linux/gnu/b32/powerpc.rs
+++ b/src/unix/linux_like/linux/gnu/b32/powerpc.rs
@@ -325,6 +325,8 @@ pub const SO_RCVTIMEO: ::c_int = 18;
 pub const SO_SNDTIMEO: ::c_int = 19;
 pub const SO_PASSCRED: ::c_int = 20;
 pub const SO_PEERCRED: ::c_int = 21;
+pub const SO_PEERSEC: ::c_int = 31;
+pub const SO_PASSSEC: ::c_int = 34;
 
 pub const SA_SIGINFO: ::c_int = 0x00000004;
 pub const SA_NOCLDWAIT: ::c_int = 0x00000002;
diff --git a/src/unix/linux_like/linux/gnu/b32/sparc/mod.rs b/src/unix/linux_like/linux/gnu/b32/sparc/mod.rs
index 33400b3a72..662dac731a 100644
--- a/src/unix/linux_like/linux/gnu/b32/sparc/mod.rs
+++ b/src/unix/linux_like/linux/gnu/b32/sparc/mod.rs
@@ -324,6 +324,8 @@ pub const SOL_SOCKET: ::c_int = 0xffff;
 
 pub const SO_PASSCRED: ::c_int = 2;
 pub const SO_REUSEADDR: ::c_int = 4;
+pub const SO_PEERSEC: ::c_int = 0x001e;
+pub const SO_PASSSEC: ::c_int = 0x001f;
 pub const SO_TYPE: ::c_int = 0x1008;
 pub const SO_ERROR: ::c_int = 0x1007;
 pub const SO_DONTROUTE: ::c_int = 16;
diff --git a/src/unix/linux_like/linux/gnu/b32/x86/mod.rs b/src/unix/linux_like/linux/gnu/b32/x86/mod.rs
index 130ed85095..95b69d9574 100644
--- a/src/unix/linux_like/linux/gnu/b32/x86/mod.rs
+++ b/src/unix/linux_like/linux/gnu/b32/x86/mod.rs
@@ -526,6 +526,8 @@ pub const SO_RCVLOWAT: ::c_int = 18;
 pub const SO_SNDLOWAT: ::c_int = 19;
 pub const SO_RCVTIMEO: ::c_int = 20;
 pub const SO_SNDTIMEO: ::c_int = 21;
+pub const SO_PEERSEC: ::c_int = 31;
+pub const SO_PASSSEC: ::c_int = 34;
 
 pub const SA_SIGINFO: ::c_int = 0x00000004;
 pub const SA_NOCLDWAIT: ::c_int = 0x00000002;
diff --git a/src/unix/linux_like/linux/gnu/b64/s390x.rs b/src/unix/linux_like/linux/gnu/b64/s390x.rs
index fcd1f7b16f..3be90a1656 100644
--- a/src/unix/linux_like/linux/gnu/b64/s390x.rs
+++ b/src/unix/linux_like/linux/gnu/b64/s390x.rs
@@ -486,8 +486,10 @@ pub const SO_PEERCRED: ::c_int = 17;
 pub const SO_RCVLOWAT: ::c_int = 18;
 pub const SO_SNDLOWAT: ::c_int = 19;
 pub const SO_ACCEPTCONN: ::c_int = 30;
+pub const SO_PEERSEC: ::c_int = 31;
 pub const SO_SNDBUFFORCE: ::c_int = 32;
 pub const SO_RCVBUFFORCE: ::c_int = 33;
+pub const SO_PASSSEC: ::c_int = 34;
 
 pub const SIGTTIN: ::c_int = 21;
 pub const SIGTTOU: ::c_int = 22;
diff --git a/src/unix/linux_like/linux/gnu/b64/sparc64/mod.rs b/src/unix/linux_like/linux/gnu/b64/sparc64/mod.rs
index bcf0fd6222..29ab8b866c 100644
--- a/src/unix/linux_like/linux/gnu/b64/sparc64/mod.rs
+++ b/src/unix/linux_like/linux/gnu/b64/sparc64/mod.rs
@@ -334,6 +334,8 @@ pub const SO_PASSCRED: ::c_int = 2;
 pub const SO_REUSEADDR: ::c_int = 4;
 pub const SO_BINDTODEVICE: ::c_int = 0x000d;
 pub const SO_TIMESTAMP: ::c_int = 0x001d;
+pub const SO_PEERSEC: ::c_int = 0x001e;
+pub const SO_PASSSEC: ::c_int = 0x001f;
 pub const SO_MARK: ::c_int = 0x0022;
 pub const SO_RXQ_OVFL: ::c_int = 0x0024;
 pub const SO_PEEK_OFF: ::c_int = 0x0026;
diff --git a/src/unix/linux_like/linux/musl/b32/arm/mod.rs b/src/unix/linux_like/linux/musl/b32/arm/mod.rs
index 88e8d56b99..2beb5f9e45 100644
--- a/src/unix/linux_like/linux/musl/b32/arm/mod.rs
+++ b/src/unix/linux_like/linux/musl/b32/arm/mod.rs
@@ -377,8 +377,10 @@ pub const SO_SNDLOWAT: ::c_int = 19;
 pub const SO_RCVTIMEO: ::c_int = 20;
 pub const SO_SNDTIMEO: ::c_int = 21;
 pub const SO_ACCEPTCONN: ::c_int = 30;
+pub const SO_PEERSEC: ::c_int = 31;
 pub const SO_SNDBUFFORCE: ::c_int = 32;
 pub const SO_RCVBUFFORCE: ::c_int = 33;
+pub const SO_PASSSEC: ::c_int = 34;
 pub const SO_PROTOCOL: ::c_int = 38;
 pub const SO_DOMAIN: ::c_int = 39;
 
diff --git a/src/unix/linux_like/linux/musl/b32/mips/mod.rs b/src/unix/linux_like/linux/musl/b32/mips/mod.rs
index 2e17ccc637..f84b125426 100644
--- a/src/unix/linux_like/linux/musl/b32/mips/mod.rs
+++ b/src/unix/linux_like/linux/musl/b32/mips/mod.rs
@@ -388,8 +388,10 @@ pub const SO_PRIORITY: ::c_int = 12;
 pub const SO_BSDCOMPAT: ::c_int = 14;
 pub const SO_PASSCRED: ::c_int = 17;
 pub const SO_PEERCRED: ::c_int = 18;
+pub const SO_PEERSEC: ::c_int = 30;
 pub const SO_SNDBUFFORCE: ::c_int = 31;
 pub const SO_RCVBUFFORCE: ::c_int = 33;
+pub const SO_PASSSEC: ::c_int = 34;
 
 pub const SA_ONSTACK: ::c_int = 0x08000000;
 pub const SA_SIGINFO: ::c_int = 8;
diff --git a/src/unix/linux_like/linux/musl/b32/powerpc.rs b/src/unix/linux_like/linux/musl/b32/powerpc.rs
index b94bb7b15e..64f8f23778 100644
--- a/src/unix/linux_like/linux/musl/b32/powerpc.rs
+++ b/src/unix/linux_like/linux/musl/b32/powerpc.rs
@@ -379,8 +379,10 @@ pub const SO_SNDTIMEO: ::c_int = 19;
 pub const SO_PASSCRED: ::c_int = 20;
 pub const SO_PEERCRED: ::c_int = 21;
 pub const SO_ACCEPTCONN: ::c_int = 30;
+pub const SO_PEERSEC: ::c_int = 31;
 pub const SO_SNDBUFFORCE: ::c_int = 32;
 pub const SO_RCVBUFFORCE: ::c_int = 33;
+pub const SO_PASSSEC: ::c_int = 34;
 pub const SO_PROTOCOL: ::c_int = 38;
 pub const SO_DOMAIN: ::c_int = 39;
 
diff --git a/src/unix/linux_like/linux/musl/b32/x86/mod.rs b/src/unix/linux_like/linux/musl/b32/x86/mod.rs
index 82ef84a96e..4d9af72976 100644
--- a/src/unix/linux_like/linux/musl/b32/x86/mod.rs
+++ b/src/unix/linux_like/linux/musl/b32/x86/mod.rs
@@ -437,8 +437,10 @@ pub const SO_SNDLOWAT: ::c_int = 19;
 pub const SO_RCVTIMEO: ::c_int = 20;
 pub const SO_SNDTIMEO: ::c_int = 21;
 pub const SO_ACCEPTCONN: ::c_int = 30;
+pub const SO_PEERSEC: ::c_int = 31;
 pub const SO_SNDBUFFORCE: ::c_int = 32;
 pub const SO_RCVBUFFORCE: ::c_int = 33;
+pub const SO_PASSSEC: ::c_int = 34;
 pub const SO_PROTOCOL: ::c_int = 38;
 pub const SO_DOMAIN: ::c_int = 39;
 
diff --git a/src/unix/linux_like/linux/musl/b64/aarch64/mod.rs b/src/unix/linux_like/linux/musl/b64/aarch64/mod.rs
index 88c252ea6c..8864dea851 100644
--- a/src/unix/linux_like/linux/musl/b64/aarch64/mod.rs
+++ b/src/unix/linux_like/linux/musl/b64/aarch64/mod.rs
@@ -598,6 +598,8 @@ pub const SO_RCVLOWAT: ::c_int = 18;
 pub const SO_SNDLOWAT: ::c_int = 19;
 pub const SO_RCVTIMEO: ::c_int = 20;
 pub const SO_SNDTIMEO: ::c_int = 21;
+pub const SO_PEERSEC: ::c_int = 31;
+pub const SO_PASSSEC: ::c_int = 34;
 pub const EXTPROC: ::tcflag_t = 0x00010000;
 pub const VEOL: usize = 11;
 pub const VEOL2: usize = 16;
diff --git a/src/unix/linux_like/linux/musl/b64/powerpc64.rs b/src/unix/linux_like/linux/musl/b64/powerpc64.rs
index 2533ffd6d3..c1618ad519 100644
--- a/src/unix/linux_like/linux/musl/b64/powerpc64.rs
+++ b/src/unix/linux_like/linux/musl/b64/powerpc64.rs
@@ -613,6 +613,8 @@ pub const SO_RCVLOWAT: ::c_int = 16;
 pub const SO_SNDLOWAT: ::c_int = 17;
 pub const SO_RCVTIMEO: ::c_int = 18;
 pub const SO_SNDTIMEO: ::c_int = 19;
+pub const SO_PEERSEC: ::c_int = 31;
+pub const SO_PASSSEC: ::c_int = 34;
 pub const EXTPROC: ::tcflag_t = 0x10000000;
 pub const VEOL: usize = 6;
 pub const VEOL2: usize = 8;
diff --git a/src/unix/linux_like/linux/musl/b64/x86_64/mod.rs b/src/unix/linux_like/linux/musl/b64/x86_64/mod.rs
index 1229bec172..b3f1e6aa94 100644
--- a/src/unix/linux_like/linux/musl/b64/x86_64/mod.rs
+++ b/src/unix/linux_like/linux/musl/b64/x86_64/mod.rs
@@ -903,6 +903,8 @@ pub const SO_RCVLOWAT: ::c_int = 18;
 pub const SO_SNDLOWAT: ::c_int = 19;
 pub const SO_RCVTIMEO: ::c_int = 20;
 pub const SO_SNDTIMEO: ::c_int = 21;
+pub const SO_PEERSEC: ::c_int = 31;
+pub const SO_PASSSEC: ::c_int = 34;
 pub const EXTPROC: ::tcflag_t = 0x00010000;
 pub const VEOL: usize = 11;
 pub const VEOL2: usize = 16;
diff --git a/src/unix/linux_like/linux/uclibc/arm/mod.rs b/src/unix/linux_like/linux/uclibc/arm/mod.rs
index 1cafdb61c4..60e526bd78 100644
--- a/src/unix/linux_like/linux/uclibc/arm/mod.rs
+++ b/src/unix/linux_like/linux/uclibc/arm/mod.rs
@@ -262,6 +262,8 @@ pub const MAP_HUGETLB: ::c_int = 0x040000; // from linux/other/mod.rs
 pub const SO_BUSY_POLL: ::c_int = 46; // from src/unix/linux_like/mod.rs
 pub const SO_PEEK_OFF: ::c_int = 42; // from src/unix/linux_like/mod.rs
 pub const SO_REUSEPORT: ::c_int = 15; // from src/unix/linux_like/mod.rs
+pub const SO_PEERSEC: ::c_int = 31;
+pub const SO_PASSSEC: ::c_int = 34;
 
 // autogenerated constants with hand tuned types
 pub const B0: ::speed_t = 0;
diff --git a/src/unix/linux_like/linux/uclibc/x86_64/mod.rs b/src/unix/linux_like/linux/uclibc/x86_64/mod.rs
index 80c9583372..af42d0fb10 100644
--- a/src/unix/linux_like/linux/uclibc/x86_64/mod.rs
+++ b/src/unix/linux_like/linux/uclibc/x86_64/mod.rs
@@ -324,6 +324,8 @@ pub const SO_RCVTIMEO: ::c_int = 20;
 pub const SO_REUSEADDR: ::c_int = 2;
 pub const SO_SNDTIMEO: ::c_int = 21;
 pub const SO_TIMESTAMP: ::c_int = 0x1d;
+pub const SO_PEERSEC: ::c_int = 31;
+pub const SO_PASSSEC: ::c_int = 34;
 pub const RLIM_INFINITY: u64 = 0xffffffffffffffff;
 pub const __SIZEOF_PTHREAD_COND_T: usize = 48;
 pub const __SIZEOF_PTHREAD_CONDATTR_T: usize = 4;