Security framework.
Security callback: selects which parameters are permitted including
sensible defaults based on bits of security.
The "parameters" which can be selected include: ciphersuites,
curves, key sizes, certificate signature algorithms, supported
signature algorithms, DH parameters, SSL/TLS version, session tickets
and compression.
In some cases prohibiting the use of a parameters will mean they are
not advertised to the peer: for example cipher suites and ECC curves.
In other cases it will abort the handshake: e.g DH parameters or the
peer key size.
Documentation to follow...
diff --git a/ssl/ssl_locl.h b/ssl/ssl_locl.h
index 07ea0d2..0f51594 100644
--- a/ssl/ssl_locl.h
+++ b/ssl/ssl_locl.h
@@ -627,6 +627,13 @@
unsigned char *ciphers_raw;
size_t ciphers_rawlen;
+ /* Security callback */
+ int (*sec_cb)(SSL *s, SSL_CTX *ctx, int op, int bits, int nid, void *other, void *ex);
+ /* Security level */
+ int sec_level;
+
+ void *sec_ex;
+
int references; /* >1 only if SSL_copy_session_id is used */
} CERT;
@@ -995,10 +1002,10 @@
int ssl_get_handshake_digest(int i,long *mask,const EVP_MD **md);
int ssl_cipher_get_cert_index(const SSL_CIPHER *c);
const SSL_CIPHER *ssl_get_cipher_by_char(SSL *ssl, const unsigned char *ptr);
-int ssl_cert_set0_chain(CERT *c, STACK_OF(X509) *chain);
-int ssl_cert_set1_chain(CERT *c, STACK_OF(X509) *chain);
-int ssl_cert_add0_chain_cert(CERT *c, X509 *x);
-int ssl_cert_add1_chain_cert(CERT *c, X509 *x);
+int ssl_cert_set0_chain(SSL *s, SSL_CTX *ctx, STACK_OF(X509) *chain);
+int ssl_cert_set1_chain(SSL *s, SSL_CTX *ctx, STACK_OF(X509) *chain);
+int ssl_cert_add0_chain_cert(SSL *s, SSL_CTX *ctx, X509 *x);
+int ssl_cert_add1_chain_cert(SSL *s, SSL_CTX *ctx, X509 *x);
int ssl_cert_select_current(CERT *c, X509 *x);
int ssl_cert_set_current(CERT *c, long arg);
X509 *ssl_cert_get0_next_certificate(CERT *c, int first);
@@ -1006,8 +1013,12 @@
int ssl_verify_cert_chain(SSL *s,STACK_OF(X509) *sk);
int ssl_add_cert_chain(SSL *s, CERT_PKEY *cpk, unsigned long *l);
-int ssl_build_cert_chain(CERT *c, X509_STORE *chain_store, int flags);
+int ssl_build_cert_chain(SSL *s, SSL_CTX *ctx, int flags);
int ssl_cert_set_cert_store(CERT *c, X509_STORE *store, int chain, int ref);
+
+int ssl_security(SSL *s, int op, int bits, int nid, void *other);
+int ssl_ctx_security(SSL_CTX *ctx, int op, int bits, int nid, void *other);
+
int ssl_undefined_function(SSL *s);
int ssl_undefined_void_function(void);
int ssl_undefined_const_function(const SSL *s);
@@ -1124,6 +1135,8 @@
const SSL_CIPHER *ssl23_get_cipher_by_char(const unsigned char *p);
long ssl23_default_timeout(void );
+int ssl_allow_compression(SSL *s);
+
long tls1_default_timeout(void);
int dtls1_do_write(SSL *s,int type);
int ssl3_read_n(SSL *s, int n, int max, int extend);
@@ -1304,6 +1317,7 @@
const EVP_MD *md);
int tls12_get_sigid(const EVP_PKEY *pk);
const EVP_MD *tls12_get_hash(unsigned char hash_alg);
+void ssl_set_sig_mask(unsigned long *pmask_a, SSL *s, int op);
int tls1_set_sigalgs_list(CERT *c, const char *str, int client);
int tls1_set_sigalgs(CERT *c, const int *salg, size_t salglen, int client);
@@ -1315,6 +1329,10 @@
#ifndef OPENSSL_NO_DH
DH *ssl_get_auto_dh(SSL *s);
#endif
+
+int ssl_security_cert(SSL *s, SSL_CTX *ctx, X509 *x, int vfy, int is_ee);
+int ssl_security_cert_chain(SSL *s, STACK_OF(X509) *sk, X509 *ex, int vfy);
+
EVP_MD_CTX* ssl_replace_hash(EVP_MD_CTX **hash,const EVP_MD *md) ;
void ssl_clear_hash_ctx(EVP_MD_CTX **hash);
int ssl_add_serverhello_renegotiate_ext(SSL *s, unsigned char *p, int *len,
@@ -1326,12 +1344,14 @@
int ssl_parse_clienthello_renegotiate_ext(SSL *s, unsigned char *d, int len,
int *al);
long ssl_get_algorithm2(SSL *s);
+size_t tls12_copy_sigalgs(SSL *s, unsigned char *out,
+ const unsigned char *psig, size_t psiglen);
int tls1_process_sigalgs(SSL *s, const unsigned char *data, int dsize);
size_t tls12_get_psigalgs(SSL *s, const unsigned char **psigs);
int tls12_check_peer_sigalg(const EVP_MD **pmd, SSL *s,
const unsigned char *sig, EVP_PKEY *pkey);
void ssl_set_client_disabled(SSL *s);
-int ssl_cipher_disabled(SSL *s, const SSL_CIPHER *c);
+int ssl_cipher_disabled(SSL *s, const SSL_CIPHER *c, int op);
int ssl_add_clienthello_use_srtp_ext(SSL *s, unsigned char *p, int *len, int maxlen);
int ssl_parse_clienthello_use_srtp_ext(SSL *s, unsigned char *d, int len,int *al);
