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Modified GnuTLS priority according to standard crypto-policy guideline #171

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Apr 17, 2020
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Modified GnuTLS priority according to standard crypto-policy guideline #171

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25 changes: 17 additions & 8 deletions src/tcp.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1136,20 +1136,29 @@ relpTcpTLSSetPrio_gtls(relpTcp_t *const pThis)
char pristringBuf[4096];
char *pristring;
ENTER_RELPFUNC;
/* Compute priority string (in simple cases where the user does not care...) */
/* Set default priority string (in simple cases where the user does not care...) */
if(pThis->pristring == NULL) {
if(pThis->bEnableTLSZip) {
strncpy(pristringBuf, "NORMAL:+ANON-DH:+COMP-ALL", sizeof(pristringBuf));
} else {
strncpy(pristringBuf, "NORMAL:+ANON-DH:+COMP-NULL", sizeof(pristringBuf));
if (pThis->authmode == eRelpAuthMode_None) {
if(pThis->bEnableTLSZip) {
strncpy(pristringBuf, "NORMAL:+ANON-DH:+COMP-ALL", sizeof(pristringBuf));
} else {
strncpy(pristringBuf, "NORMAL:+ANON-DH:+COMP-NULL", sizeof(pristringBuf));
}
pristringBuf[sizeof(pristringBuf)-1] = '\0';
pristring = pristringBuf;
pristringBuf[sizeof(pristringBuf)-1] = '\0';
pristring = pristringBuf;
r = gnutls_priority_set_direct(pThis->session, pristring, NULL);
} else {
r = gnutls_set_default_priority(pThis->session);
strncpy(pristringBuf, "to recommended system default", sizeof(pristringBuf));
pristringBuf[sizeof(pristringBuf)-1] = '\0';
pristring = pristringBuf;
}

} else {
pristring = pThis->pristring;
r = gnutls_priority_set_direct(pThis->session, pristring, NULL);
}

r = gnutls_priority_set_direct(pThis->session, pristring, NULL);
if(r == GNUTLS_E_INVALID_REQUEST) {
ABORT_FINALIZE(RELP_RET_INVLD_TLS_PRIO);
} else if(r != GNUTLS_E_SUCCESS) {
Expand Down