author | Tero Marttila <terom@fixme.fi> |
Sun, 22 Feb 2009 10:16:28 +0200 | |
changeset 10 | 9fe218576d13 |
parent 9 | 4c4c906cc649 |
child 12 | 4147fae232d9 |
permissions | -rw-r--r-- |
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#include "sock_gnutls.h" |
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#include <stdlib.h> |
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#include <err.h> |
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// XXX: errors |
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static err_t sock_gnutls_read (struct sock_stream *base_sock, void *buf, size_t *len) |
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{ |
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struct sock_gnutls *sock = SOCK_FROM_BASE(base_sock, struct sock_gnutls); |
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int ret; |
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// just map to gnutls_record_recv |
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if ((ret = gnutls_record_recv(sock->session, buf, *len)) < 0) |
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RETURN_SET_ERROR_ERRNO(SOCK_GNUTLS_ERR(sock), ERR_GNUTLS_RECORD_RECV); |
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// updated length |
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*len = ret; |
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return SUCCESS; |
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} |
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static err_t sock_gnutls_write (struct sock_stream *base_sock, const void *buf, size_t *len) |
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{ |
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struct sock_gnutls *sock = SOCK_FROM_BASE(base_sock, struct sock_gnutls); |
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int ret; |
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|
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// just map to gnutls_record_send |
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if ((ret = gnutls_record_send(sock->session, buf, *len)) < 0) |
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RETURN_SET_ERROR_ERRNO(SOCK_GNUTLS_ERR(sock), ERR_GNUTLS_RECORD_SEND); |
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// updated length |
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*len = ret; |
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return SUCCESS; |
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} |
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static err_t sock_gnutls_event_init (struct sock_stream *base_sock) |
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{ |
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struct sock_gnutls *sock = SOCK_FROM_BASE(base_sock, struct sock_gnutls); |
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return SUCCESS; |
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} |
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static err_t sock_gnutls_event_enable (struct sock_stream *base_sock, short mask) |
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{ |
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struct sock_gnutls *sock = SOCK_FROM_BASE(base_sock, struct sock_gnutls); |
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return SUCCESS; |
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} |
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/* |
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* Our sock_stream_Type |
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*/ |
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struct sock_stream_type sock_gnutls_type = { |
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.methods.read = &sock_gnutls_read, |
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.methods.write = &sock_gnutls_write, |
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.methods.event_init = &sock_gnutls_event_init, |
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.methods.event_enable = &sock_gnutls_event_enable, |
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}; |
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/* |
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* XXX: global shared sock_gnutls_ctx |
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*/ |
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struct sock_gnutls_client_ctx _sock_gnutls_client_ctx; |
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/* |
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* Configure the given gnutls socket context to use simple anonymous client credentials |
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*/ |
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static err_t sock_gnutls_client_ctx_anon (struct sock_gnutls_client_ctx *ctx, struct error_info *err) |
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{ |
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// init to use anonymous x509 cert |
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if ((ERROR_EXTRA(err) = gnutls_certificate_allocate_credentials(&ctx->xcred)) < 0) |
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return SET_ERROR(err, ERR_GNUTLS_CERT_ALLOC_CRED); |
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// done |
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return SUCCESS; |
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} |
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err_t sock_gnutls_global_init (struct error_info *err) |
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{ |
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// global init |
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if ((ERROR_EXTRA(err) = gnutls_global_init()) < 0) |
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return SET_ERROR(err, ERR_GNUTLS_GLOBAL_INIT); |
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|
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// init _sock_gnutls_ctx |
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if (sock_gnutls_client_ctx_anon(&_sock_gnutls_client_ctx, err)) |
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return ERROR_CODE(err); |
3 | 89 |
|
90 |
// done |
|
91 |
return SUCCESS; |
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} |
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err_t sock_gnutls_connect (struct sock_stream **sock_ptr, const char *host, const char *service, struct error_info *err) |
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{ |
5 | 97 |
struct sock_gnutls *sock = NULL; |
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struct sock_gnutls_client_ctx *ctx = &_sock_gnutls_client_ctx; |
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// alloc |
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if ((sock = calloc(1, sizeof(*sock))) == NULL) |
5 | 102 |
return SET_ERROR(err, ERR_CALLOC); |
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// initialize base |
105 |
sock_stream_init(SOCK_GNUTLS_BASE(sock), &sock_gnutls_type); |
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// initialize client session |
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if ((ERROR_EXTRA(err) = gnutls_init(&sock->session, GNUTLS_CLIENT)) < 0) |
109 |
JUMP_SET_ERROR(err, ERR_GNUTLS_INIT); |
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// ...default priority stuff |
5 | 112 |
if ((ERROR_EXTRA(err) = gnutls_set_default_priority(sock->session))) |
113 |
JUMP_SET_ERROR(err, ERR_GNUTLS_SET_DEFAULT_PRIORITY); |
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// bind anon credentials |
5 | 116 |
if ((ERROR_EXTRA(err) = gnutls_credentials_set(sock->session, GNUTLS_CRD_CERTIFICATE, ctx->xcred))) |
117 |
JUMP_SET_ERROR(err, ERR_GNUTLS_CRED_SET); |
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118 |
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119 |
// TCP connect |
5 | 120 |
if (sock_tcp_init_connect(SOCK_GNUTLS_TCP(sock), host, service)) |
121 |
JUMP_SET_ERROR_INFO(err, SOCK_GNUTLS_ERR(sock)); |
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122 |
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// bind default transport functions (recv/send) to use the TCP fd |
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gnutls_transport_set_ptr(sock->session, (gnutls_transport_ptr_t) sock->base_tcp.fd); |
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125 |
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126 |
// perform the handshake |
5 | 127 |
if ((ERROR_EXTRA(err) = gnutls_handshake(sock->session)) < 0) |
128 |
JUMP_SET_ERROR(err, ERR_GNUTLS_HANDSHAKE); |
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130 |
// done |
5 | 131 |
*sock_ptr = SOCK_GNUTLS_BASE(sock); |
132 |
||
133 |
return SUCCESS; |
|
134 |
||
135 |
error: |
|
136 |
// XXX: cleanup |
|
137 |
||
138 |
return ERROR_CODE(err); |
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139 |
} |
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140 |