}{
	// RFC 9180, Section 7.3
	0x0001: {keySize: 16, nonceSize: 12, aead: aesGCMNew},
	0x0002: {keySize: 32, nonceSize: 12, aead: aesGCMNew},
	0x0003: {keySize: chacha20poly1305.KeySize, nonceSize: chacha20poly1305.NonceSize, aead: chacha20poly1305.New},
}

var SupportedKDFs = map[uint16]func() *hkdfKDF{
	// RFC 9180, Section 7.2
	0x0001: func() *hkdfKDF { return &hkdfKDF{crypto.SHA256} },
}

}

// pollfd represents the poll structure for AIX operating system.
type pollfd struct {
	fd      int32
	events  int16
	revents int16
}

const _POLLIN = 0x0001
const _POLLOUT = 0x0002
const _POLLHUP = 0x2000
const _POLLERR = 0x4000

var (
	pfds           []pollfd
	pds            []*pollDesc
	mtxpoll        mutex
	mtxset         mutex
	rdwake         int32
	wrwake         int32

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00000280  06 4d f4 c1 b3 3e c0 d1  bd 42 d4 db fe 3d 13 60  |.M...>...B...=.`|
00000290  84 5c 21 d3 3b e9 fa e7  16 03 03 00 23 0d 00 00  |.\!.;.......#...|
000002a0  1f 02 01 40 00 18 08 04  04 03 08 07 08 05 08 06  |...@............|
000002b0  04 01 05 01 06 01 05 03  06 03 02 01 02 03 00 00  |................|
000002c0  16 03 03 00 04 0e 00 00  00                       |.........|
>>> Flow 3 (client to server)

>>> Flow 1 (client to server)
00000000  16 03 01 00 fe 01 00 00  fa 03 03 00 00 00 00 00  |................|
00000010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
00000020  00 00 00 00 00 00 00 00  00 00 00 20 00 00 00 00  |........... ....|
00000030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
00000040  00 00 00 00 00 00 00 00  00 00 00 00 00 32 cc a9  |.............2..|

	syscall.Entersyscall()
	r := realSyscallNoError(trap, a1, a2, a3, 0, 0, 0, 0, 0, 0)
	syscall.Exitsyscall()
	return r, 0
}

func Syscall(trap, a1, a2, a3 uintptr) (r1, r2 uintptr, err syscall.Errno) {
	syscall.Entersyscall()
	r, errno := realSyscall(trap, a1, a2, a3, 0, 0, 0, 0, 0, 0)
	syscall.Exitsyscall()
	return r, 0, syscall.Errno(errno)
}

const (
	// Invented values to support what package os expects.
	O_CREAT    = 0x02000
	O_APPEND   = 0x00400
	O_NOCTTY   = 0x00000
	O_NONBLOCK = 0x00000
	O_SYNC     = 0x00000
	O_ASYNC    = 0x00000

	S_IFMT   = 0x1f000
	S_IFIFO  = 0x1000
	S_IFCHR  = 0x2000
	S_IFDIR  = 0x4000
	S_IFBLK  = 0x6000
	S_IFREG  = 0x8000
	S_IFLNK  = 0xa000
	S_IFSOCK = 0xc000
)

// Errors
var (

const (
	// Invented values to support what package os expects.
	O_CREAT    = 0x02000
	O_APPEND   = 0x00400
	O_NOCTTY   = 0x00000
	O_NONBLOCK = 0x00000
	O_SYNC     = 0x00000
	O_ASYNC    = 0x00000

	S_IFMT   = 0x1f000
	S_IFIFO  = 0x1000
	S_IFCHR  = 0x2000
	S_IFDIR  = 0x4000
	S_IFBLK  = 0x6000
	S_IFREG  = 0x8000
	S_IFLNK  = 0xa000
	S_IFSOCK = 0xc000
)

// Errors
var (