Thanks Allan for your answer, but can I ask some things about building or linking libeap.so? I have read I guess all comments you posted about this thing and I followed them. but after I used LD_PRELOAD suddenly output changed to: radiusd: symbol lookup error: /home/boris/.git/hostap/eap_example/libeap.so: undefined symbol: wpabuf_put and when I enter command ldd -d libeap.so, I saw this. boris@bo:~/.git/hostap/eap_example$ ldd -d libeap.so linux-gate.so.1 => (0x00812000) libc.so.6 => /lib/libc.so.6 (0x00390000) /lib/ld-linux.so.2 (0x00a04000) undefined symbol: wpabuf_put (./libeap.so) undefined symbol: fips186_2_prf (./libeap.so) undefined symbol: sha1_vector (./libeap.so) undefined symbol: wpa_hexdump_key (./libeap.so) undefined symbol: wpa_printf (./libeap.so) undefined symbol: wpa_hexdump_ascii (./libeap.so) undefined symbol: wpa_hexdump (./libeap.so) undefined symbol: hmac_sha1_vector (./libeap.so) undefined symbol: aes_128_cbc_decrypt (./libeap.so) undefined symbol: os_zalloc (./libeap.so) undefined symbol: wpabuf_alloc (./libeap.so) undefined symbol: wpabuf_free (./libeap.so) undefined symbol: wpabuf_resize (./libeap.so) undefined symbol: random_get_bytes (./libeap.so) undefined symbol: aes_128_cbc_encrypt (./libeap.so) undefined symbol: wpabuf_dup (./libeap.so) undefined symbol: sha256_vector (./libeap.so) undefined symbol: hexstr2bin (./libeap.so) undefined symbol: wpa_hexdump_ascii_key (./libeap.so) undefined symbol: os_strlcpy (./libeap.so) undefined symbol: eloop_register_read_sock (./libeap.so) undefined symbol: eloop_unregister_read_sock (./libeap.so) undefined symbol: os_get_time (./libeap.so) undefined symbol: wpa_snprintf_hex (./libeap.so) I though, that I made shared library libeap.so right, but I'm confused, what I made wrong. Makefile, that's creating libeap.so include OBJS_both += ../src/crypto/libcrypto.a which define all these symbols. I tried to run command nm you posted here, but Ubuntu 10.10 doesn't recognize it. Could you help me withthis staff about linking, please? Thank you so much -- View this message in context: http://freeradius.1045715.n5.nabble.com/eap2-in-freeradius-tp2794234p4277857... Sent from the FreeRadius - Dev mailing list archive at Nabble.com.