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cyassl: add SSL context callback support for CyaSSL 

Adds support for CURLOPT_SSL_CTX_FUNCTION when using CyaSSL, and better
handles CyaSSL instances using NO_FILESYSTEM.
This commit is contained in:
Kyle L. Huff 2015-03-27 07:22:32 -04:00 committed by Daniel Stenberg
parent 211f1e3c6b
commit d2feb71752
4 changed files with 25 additions and 4 deletions
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2
docs/libcurl/opts/CURLOPT_SSL_CTX_DATA.3
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@ -38,7 +38,7 @@ All TLS based protocols: HTTPS, FTPS, IMAPS, POP3, SMTPS etc.
.SH EXAMPLE
TODO
.SH AVAILABILITY
Added in 7.11.0. Only used with the OpenSSL backend.
Added in 7.11.0. Only used with the OpenSSL and WolfSSL/CyaSSL backend.
.SH RETURN VALUE
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
.SH "SEE ALSO"

6
docs/libcurl/opts/CURLOPT_SSL_CTX_FUNCTION.3
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@ -32,8 +32,8 @@ CURLcode ssl_ctx_callback(CURL *curl, void *ssl_ctx, void *userptr);
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SSL_CTX_FUNCTION,
ssl_ctx_callback);
.SH DESCRIPTION
This option only works for libcurl powered by OpenSSL. If libcurl was built
against another SSL library, this functionality is absent.
This option only works for libcurl powered by OpenSSL and WolfSSL/CyaSSL.
If libcurl was built against another SSL library, this functionality is absent.
Pass a pointer to your callback function, which should match the prototype
shown above.
@ -63,7 +63,7 @@ All TLS based protocols: HTTPS, FTPS, IMAPS, POP3, SMTPS etc.
.SH EXAMPLE
TODO
.SH AVAILABILITY
Added in 7.11.0. Only supported when built with OpenSSL.
Added in 7.11.0. Only supported when built with OpenSSL and WolfSSL/CyaSSL.
.SH RETURN VALUE
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
.SH "SEE ALSO"

18
lib/vtls/cyassl.c
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@ -201,6 +201,24 @@ cyassl_connect_step1(struct connectdata *conn,
data->set.ssl.verifypeer?SSL_VERIFY_PEER:SSL_VERIFY_NONE,
NULL);
/* give application a chance to interfere with SSL set up. */
if(data->set.ssl.fsslctx) {
CURLcode result = CURLE_OK;
result = (*data->set.ssl.fsslctx)(data, conssl->ctx,
data->set.ssl.fsslctxp);
if(result) {
failf(data, "error signaled by ssl ctx callback");
return result;
}
}
#ifdef NO_FILESYSTEM
else if(data->set.ssl.verifypeer) {
failf(data, "CyaSSL: unable to verify certificate; no certificate",
" authorities registered");
return CURLE_SSL_CONNECT_ERROR;
}
#endif
/* Let's make an SSL structure */
if(conssl->handle)
SSL_free(conssl->handle);

3
lib/vtls/cyassl.h
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@ -46,6 +46,9 @@ int Curl_cyassl_random(struct SessionHandle *data,
/* Set the API backend definition to Schannel */
#define CURL_SSL_BACKEND CURLSSLBACKEND_CYASSL
/* this backend suppots CURLOPT_SSL_CTX_FUNCTION */
#define have_curlssl_ssl_ctx 1
/* API setup for CyaSSL */
#define curlssl_init Curl_cyassl_init
#define curlssl_cleanup() Curl_nop_stmt