From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Original-To: caml-list@sympa.inria.fr Delivered-To: caml-list@sympa.inria.fr Received: from mail3-relais-sop.national.inria.fr (mail3-relais-sop.national.inria.fr [192.134.164.104]) by sympa.inria.fr (Postfix) with ESMTPS id CF0867EEE0 for ; Tue, 17 Mar 2015 10:01:47 +0100 (CET) X-IronPort-AV: E=Sophos;i="5.11,415,1422918000"; d="scan'208";a="103641974" Received: from alnitak.irisa.fr ([131.254.16.128]) by mail3-relais-sop.national.inria.fr with ESMTP/TLS/DHE-RSA-AES128-SHA; 17 Mar 2015 10:01:35 +0100 Message-ID: <5507ED6E.3020308@irisa.fr> Date: Tue, 17 Mar 2015 10:01:34 +0100 From: Sebastien Ferre Organization: IRISA User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.4.0 MIME-Version: 1.0 To: caml-list@inria.fr Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit X-Validation-by: sebastien.ferre@irisa.fr Subject: [Caml-list] ocamlnet and missing SRP functions in gnutls Hi, when trying to use gnutls for TLS-secured connections with ocamlnet, I encounter a problem with SRP functions. When linking with package nettls-gnutls of ocamlnet, I get the following linking errors (excerpt here, full log at the end). /local/ferre/.opam/system/lib/nettls-gnutls/libnettls-gnutls.a(nettls_gnutls_bindings_stubs.o): In function `abs_gnutls_srp_client_credentials_t_finalize': /home/ferre/.opam/system/build/ocamlnet.4.0.2/src/nettls-gnutls/nettls_gnutls_bindings_stubs.c:1841: undefined reference to `gnutls_srp_free_client_credentials' [...] All undefined functions start with 'gnutls_srp_'. After some web search, I found that those functions are excluded in some Linux distributions (mine is a Fedora) because of patent issues. Are those functions really necessary for TLS connections ? If not, is there a patch of the package 'nettls-gnutls' that avoids them ? If yes, is there a workaround ? Has anybody else encounter the same problem. My global objective is to provide a secure authentication for a Web application. Thanks, --- Sébastien Ferré ============================================================== /local/ferre/.opam/system/lib/nettls-gnutls/libnettls-gnutls.a(nettls_gnutls_bindings_stubs.o): In function `abs_gnutls_srp_client_credentials_t_finalize': /home/ferre/.opam/system/build/ocamlnet.4.0.2/src/nettls-gnutls/nettls_gnutls_bindings_stubs.c:1841: undefined reference to `gnutls_srp_free_client_credentials' /local/ferre/.opam/system/lib/nettls-gnutls/libnettls-gnutls.a(nettls_gnutls_bindings_stubs.o): In function `abs_gnutls_srp_server_credentials_t_finalize': /home/ferre/.opam/system/build/ocamlnet.4.0.2/src/nettls-gnutls/nettls_gnutls_bindings_stubs.c:1770: undefined reference to `gnutls_srp_free_server_credentials' /local/ferre/.opam/system/lib/nettls-gnutls/libnettls-gnutls.a(nettls_gnutls_bindings_stubs.o): In function `net_gnutls_srp_allocate_client_credentials': /home/ferre/.opam/system/build/ocamlnet.4.0.2/src/nettls-gnutls/nettls_gnutls_bindings_stubs.c:5431: undefined reference to `gnutls_srp_allocate_client_credentials' /local/ferre/.opam/system/lib/nettls-gnutls/libnettls-gnutls.a(nettls_gnutls_bindings_stubs.o): In function `net_gnutls_srp_set_client_credentials': /home/ferre/.opam/system/build/ocamlnet.4.0.2/src/nettls-gnutls/nettls_gnutls_bindings_stubs.c:5446: undefined reference to `gnutls_srp_set_client_credentials' /local/ferre/.opam/system/lib/nettls-gnutls/libnettls-gnutls.a(nettls_gnutls_bindings_stubs.o): In function `net_gnutls_srp_allocate_server_credentials': /home/ferre/.opam/system/build/ocamlnet.4.0.2/src/nettls-gnutls/nettls_gnutls_bindings_stubs.c:5456: undefined reference to `gnutls_srp_allocate_server_credentials' /local/ferre/.opam/system/lib/nettls-gnutls/libnettls-gnutls.a(nettls_gnutls_bindings_stubs.o): In function `net_gnutls_srp_set_server_credentials_file': /home/ferre/.opam/system/build/ocamlnet.4.0.2/src/nettls-gnutls/nettls_gnutls_bindings_stubs.c:5471: undefined reference to `gnutls_srp_set_server_credentials_file' /local/ferre/.opam/system/lib/nettls-gnutls/libnettls-gnutls.a(nettls_gnutls_bindings_stubs.o): In function `net_gnutls_srp_server_get_username': /home/ferre/.opam/system/build/ocamlnet.4.0.2/src/nettls-gnutls/nettls_gnutls_bindings_stubs.c:5482: undefined reference to `gnutls_srp_server_get_username' /local/ferre/.opam/system/lib/nettls-gnutls/libnettls-gnutls.a(nettls_gnutls_bindings_stubs.o): In function `net_gnutls_srp_set_prime_bits': /home/ferre/.opam/system/build/ocamlnet.4.0.2/src/nettls-gnutls/nettls_gnutls_bindings_stubs.c:5493: undefined reference to `gnutls_srp_set_prime_bits' /local/ferre/.opam/system/lib/nettls-gnutls/libnettls-gnutls.a(nettls_gnutls_bindings_stubs.o): In function `net_gnutls_srp_verifier': /home/ferre/.opam/system/build/ocamlnet.4.0.2/src/nettls-gnutls/nettls_gnutls_bindings_stubs.c:5512: undefined reference to `gnutls_srp_verifier' collect2: error: ld returned 1 exit status File "caml_startup", line 1: Error: Error during linking