299 lines
8.2 KiB
C
299 lines
8.2 KiB
C
|
/* $OpenBSD: tls_internal.h,v 1.77 2019/11/16 21:39:52 beck Exp $ */
|
||
|
|
/*
|
||
|
|
* Copyright (c) 2014 Jeremie Courreges-Anglas <jca@openbsd.org>
|
||
|
|
* Copyright (c) 2014 Joel Sing <jsing@openbsd.org>
|
||
|
|
*
|
||
|
|
* Permission to use, copy, modify, and distribute this software for any
|
||
|
|
* purpose with or without fee is hereby granted, provided that the above
|
||
|
|
* copyright notice and this permission notice appear in all copies.
|
||
|
|
*
|
||
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
||
|
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||
|
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
||
|
|
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||
|
|
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||
|
|
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
||
|
|
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef HEADER_TLS_INTERNAL_H
|
||
|
|
#define HEADER_TLS_INTERNAL_H
|
||
|
|
|
||
|
|
#include <pthread.h>
|
||
|
|
|
||
|
|
#include <arpa/inet.h>
|
||
|
|
#include <netinet/in.h>
|
||
|
|
|
||
|
|
#include <openssl/ssl.h>
|
||
|
|
|
||
|
|
__BEGIN_HIDDEN_DECLS
|
||
|
|
|
||
|
|
#ifndef TLS_DEFAULT_CA_FILE
|
||
|
|
#define TLS_DEFAULT_CA_FILE "/etc/ssl/cert.pem"
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#define TLS_CIPHERS_DEFAULT "TLSv1.3:TLSv1.2+AEAD+ECDHE:TLSv1.2+AEAD+DHE"
|
||
|
|
#define TLS_CIPHERS_COMPAT "HIGH:!aNULL"
|
||
|
|
#define TLS_CIPHERS_LEGACY "HIGH:MEDIUM:!aNULL"
|
||
|
|
#define TLS_CIPHERS_ALL "ALL:!aNULL:!eNULL"
|
||
|
|
|
||
|
|
#define TLS_ECDHE_CURVES "X25519,P-256,P-384"
|
||
|
|
|
||
|
|
union tls_addr {
|
||
|
|
struct in_addr ip4;
|
||
|
|
struct in6_addr ip6;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct tls_error {
|
||
|
|
char *msg;
|
||
|
|
int num;
|
||
|
|
int tls;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct tls_keypair {
|
||
|
|
struct tls_keypair *next;
|
||
|
|
|
||
|
|
char *cert_mem;
|
||
|
|
size_t cert_len;
|
||
|
|
char *key_mem;
|
||
|
|
size_t key_len;
|
||
|
|
char *ocsp_staple;
|
||
|
|
size_t ocsp_staple_len;
|
||
|
|
char *pubkey_hash;
|
||
|
|
};
|
||
|
|
|
||
|
|
#define TLS_MIN_SESSION_TIMEOUT (4)
|
||
|
|
#define TLS_MAX_SESSION_TIMEOUT (24 * 60 * 60)
|
||
|
|
|
||
|
|
#define TLS_NUM_TICKETS 4
|
||
|
|
#define TLS_TICKET_NAME_SIZE 16
|
||
|
|
#define TLS_TICKET_AES_SIZE 32
|
||
|
|
#define TLS_TICKET_HMAC_SIZE 16
|
||
|
|
|
||
|
|
struct tls_ticket_key {
|
||
|
|
/* The key_name must be 16 bytes according to -lssl */
|
||
|
|
unsigned char key_name[TLS_TICKET_NAME_SIZE];
|
||
|
|
unsigned char aes_key[TLS_TICKET_AES_SIZE];
|
||
|
|
unsigned char hmac_key[TLS_TICKET_HMAC_SIZE];
|
||
|
|
time_t time;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct tls_config {
|
||
|
|
struct tls_error error;
|
||
|
|
|
||
|
|
pthread_mutex_t mutex;
|
||
|
|
int refcount;
|
||
|
|
|
||
|
|
char *alpn;
|
||
|
|
size_t alpn_len;
|
||
|
|
const char *ca_path;
|
||
|
|
char *ca_mem;
|
||
|
|
size_t ca_len;
|
||
|
|
const char *ciphers;
|
||
|
|
int ciphers_server;
|
||
|
|
char *crl_mem;
|
||
|
|
size_t crl_len;
|
||
|
|
int dheparams;
|
||
|
|
int *ecdhecurves;
|
||
|
|
size_t ecdhecurves_len;
|
||
|
|
struct tls_keypair *keypair;
|
||
|
|
int ocsp_require_stapling;
|
||
|
|
uint32_t protocols;
|
||
|
|
unsigned char session_id[TLS_MAX_SESSION_ID_LENGTH];
|
||
|
|
int session_fd;
|
||
|
|
int session_lifetime;
|
||
|
|
struct tls_ticket_key ticket_keys[TLS_NUM_TICKETS];
|
||
|
|
uint32_t ticket_keyrev;
|
||
|
|
int ticket_autorekey;
|
||
|
|
int verify_cert;
|
||
|
|
int verify_client;
|
||
|
|
int verify_depth;
|
||
|
|
int verify_name;
|
||
|
|
int verify_time;
|
||
|
|
int skip_private_key_check;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct tls_conninfo {
|
||
|
|
char *alpn;
|
||
|
|
char *cipher;
|
||
|
|
int cipher_strength;
|
||
|
|
char *servername;
|
||
|
|
int session_resumed;
|
||
|
|
char *version;
|
||
|
|
|
||
|
|
char *hash;
|
||
|
|
char *issuer;
|
||
|
|
char *subject;
|
||
|
|
|
||
|
|
uint8_t *peer_cert;
|
||
|
|
size_t peer_cert_len;
|
||
|
|
|
||
|
|
time_t notbefore;
|
||
|
|
time_t notafter;
|
||
|
|
};
|
||
|
|
|
||
|
|
#define TLS_CLIENT (1 << 0)
|
||
|
|
#define TLS_SERVER (1 << 1)
|
||
|
|
#define TLS_SERVER_CONN (1 << 2)
|
||
|
|
|
||
|
|
#define TLS_EOF_NO_CLOSE_NOTIFY (1 << 0)
|
||
|
|
#define TLS_CONNECTED (1 << 1)
|
||
|
|
#define TLS_HANDSHAKE_COMPLETE (1 << 2)
|
||
|
|
#define TLS_SSL_NEEDS_SHUTDOWN (1 << 3)
|
||
|
|
|
||
|
|
struct tls_ocsp_result {
|
||
|
|
const char *result_msg;
|
||
|
|
int response_status;
|
||
|
|
int cert_status;
|
||
|
|
int crl_reason;
|
||
|
|
time_t this_update;
|
||
|
|
time_t next_update;
|
||
|
|
time_t revocation_time;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct tls_ocsp {
|
||
|
|
/* responder location */
|
||
|
|
char *ocsp_url;
|
||
|
|
|
||
|
|
/* cert data, this struct does not own these */
|
||
|
|
X509 *main_cert;
|
||
|
|
STACK_OF(X509) *extra_certs;
|
||
|
|
|
||
|
|
struct tls_ocsp_result *ocsp_result;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct tls_sni_ctx {
|
||
|
|
struct tls_sni_ctx *next;
|
||
|
|
|
||
|
|
struct tls_keypair *keypair;
|
||
|
|
|
||
|
|
SSL_CTX *ssl_ctx;
|
||
|
|
X509 *ssl_cert;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct tls {
|
||
|
|
struct tls_config *config;
|
||
|
|
struct tls_keypair *keypair;
|
||
|
|
|
||
|
|
struct tls_error error;
|
||
|
|
|
||
|
|
uint32_t flags;
|
||
|
|
uint32_t state;
|
||
|
|
|
||
|
|
char *servername;
|
||
|
|
int socket;
|
||
|
|
|
||
|
|
SSL *ssl_conn;
|
||
|
|
SSL_CTX *ssl_ctx;
|
||
|
|
|
||
|
|
struct tls_sni_ctx *sni_ctx;
|
||
|
|
|
||
|
|
X509 *ssl_peer_cert;
|
||
|
|
STACK_OF(X509) *ssl_peer_chain;
|
||
|
|
|
||
|
|
struct tls_conninfo *conninfo;
|
||
|
|
|
||
|
|
struct tls_ocsp *ocsp;
|
||
|
|
|
||
|
|
tls_read_cb read_cb;
|
||
|
|
tls_write_cb write_cb;
|
||
|
|
void *cb_arg;
|
||
|
|
};
|
||
|
|
|
||
|
|
int tls_set_mem(char **_dest, size_t *_destlen, const void *_src,
|
||
|
|
size_t _srclen);
|
||
|
|
int tls_set_string(const char **_dest, const char *_src);
|
||
|
|
|
||
|
|
struct tls_keypair *tls_keypair_new(void);
|
||
|
|
void tls_keypair_clear_key(struct tls_keypair *_keypair);
|
||
|
|
void tls_keypair_free(struct tls_keypair *_keypair);
|
||
|
|
int tls_keypair_set_cert_file(struct tls_keypair *_keypair,
|
||
|
|
struct tls_error *_error, const char *_cert_file);
|
||
|
|
int tls_keypair_set_cert_mem(struct tls_keypair *_keypair,
|
||
|
|
struct tls_error *_error, const uint8_t *_cert, size_t _len);
|
||
|
|
int tls_keypair_set_key_file(struct tls_keypair *_keypair,
|
||
|
|
struct tls_error *_error, const char *_key_file);
|
||
|
|
int tls_keypair_set_key_mem(struct tls_keypair *_keypair,
|
||
|
|
struct tls_error *_error, const uint8_t *_key, size_t _len);
|
||
|
|
int tls_keypair_set_ocsp_staple_file(struct tls_keypair *_keypair,
|
||
|
|
struct tls_error *_error, const char *_ocsp_file);
|
||
|
|
int tls_keypair_set_ocsp_staple_mem(struct tls_keypair *_keypair,
|
||
|
|
struct tls_error *_error, const uint8_t *_staple, size_t _len);
|
||
|
|
int tls_keypair_load_cert(struct tls_keypair *_keypair,
|
||
|
|
struct tls_error *_error, X509 **_cert);
|
||
|
|
|
||
|
|
struct tls_sni_ctx *tls_sni_ctx_new(void);
|
||
|
|
void tls_sni_ctx_free(struct tls_sni_ctx *sni_ctx);
|
||
|
|
|
||
|
|
struct tls_config *tls_config_new_internal(void);
|
||
|
|
|
||
|
|
struct tls *tls_new(void);
|
||
|
|
struct tls *tls_server_conn(struct tls *ctx);
|
||
|
|
|
||
|
|
int tls_check_name(struct tls *ctx, X509 *cert, const char *servername,
|
||
|
|
int *match);
|
||
|
|
int tls_configure_server(struct tls *ctx);
|
||
|
|
|
||
|
|
int tls_configure_ssl(struct tls *ctx, SSL_CTX *ssl_ctx);
|
||
|
|
int tls_configure_ssl_keypair(struct tls *ctx, SSL_CTX *ssl_ctx,
|
||
|
|
struct tls_keypair *keypair, int required);
|
||
|
|
int tls_configure_ssl_verify(struct tls *ctx, SSL_CTX *ssl_ctx, int verify);
|
||
|
|
|
||
|
|
int tls_handshake_client(struct tls *ctx);
|
||
|
|
int tls_handshake_server(struct tls *ctx);
|
||
|
|
|
||
|
|
int tls_config_load_file(struct tls_error *error, const char *filetype,
|
||
|
|
const char *filename, char **buf, size_t *len);
|
||
|
|
int tls_config_ticket_autorekey(struct tls_config *config);
|
||
|
|
int tls_host_port(const char *hostport, char **host, char **port);
|
||
|
|
|
||
|
|
int tls_set_cbs(struct tls *ctx,
|
||
|
|
tls_read_cb read_cb, tls_write_cb write_cb, void *cb_arg);
|
||
|
|
|
||
|
|
void tls_error_clear(struct tls_error *error);
|
||
|
|
int tls_error_set(struct tls_error *error, const char *fmt, ...)
|
||
|
|
__attribute__((__format__ (printf, 2, 3)))
|
||
|
|
__attribute__((__nonnull__ (2)));
|
||
|
|
int tls_error_setx(struct tls_error *error, const char *fmt, ...)
|
||
|
|
__attribute__((__format__ (printf, 2, 3)))
|
||
|
|
__attribute__((__nonnull__ (2)));
|
||
|
|
int tls_config_set_error(struct tls_config *cfg, const char *fmt, ...)
|
||
|
|
__attribute__((__format__ (printf, 2, 3)))
|
||
|
|
__attribute__((__nonnull__ (2)));
|
||
|
|
int tls_config_set_errorx(struct tls_config *cfg, const char *fmt, ...)
|
||
|
|
__attribute__((__format__ (printf, 2, 3)))
|
||
|
|
__attribute__((__nonnull__ (2)));
|
||
|
|
int tls_set_error(struct tls *ctx, const char *fmt, ...)
|
||
|
|
__attribute__((__format__ (printf, 2, 3)))
|
||
|
|
__attribute__((__nonnull__ (2)));
|
||
|
|
int tls_set_errorx(struct tls *ctx, const char *fmt, ...)
|
||
|
|
__attribute__((__format__ (printf, 2, 3)))
|
||
|
|
__attribute__((__nonnull__ (2)));
|
||
|
|
int tls_set_ssl_errorx(struct tls *ctx, const char *fmt, ...)
|
||
|
|
__attribute__((__format__ (printf, 2, 3)))
|
||
|
|
__attribute__((__nonnull__ (2)));
|
||
|
|
|
||
|
|
int tls_ssl_error(struct tls *ctx, SSL *ssl_conn, int ssl_ret,
|
||
|
|
const char *prefix);
|
||
|
|
|
||
|
|
int tls_conninfo_populate(struct tls *ctx);
|
||
|
|
void tls_conninfo_free(struct tls_conninfo *conninfo);
|
||
|
|
|
||
|
|
int tls_ocsp_verify_cb(SSL *ssl, void *arg);
|
||
|
|
int tls_ocsp_stapling_cb(SSL *ssl, void *arg);
|
||
|
|
void tls_ocsp_free(struct tls_ocsp *ctx);
|
||
|
|
struct tls_ocsp *tls_ocsp_setup_from_peer(struct tls *ctx);
|
||
|
|
int tls_hex_string(const unsigned char *_in, size_t _inlen, char **_out,
|
||
|
|
size_t *_outlen);
|
||
|
|
int tls_cert_hash(X509 *_cert, char **_hash);
|
||
|
|
int tls_cert_pubkey_hash(X509 *_cert, char **_hash);
|
||
|
|
|
||
|
|
int tls_password_cb(char *_buf, int _size, int _rwflag, void *_u);
|
||
|
|
|
||
|
|
__END_HIDDEN_DECLS
|
||
|
|
|
||
|
|
/* XXX this function is not fully hidden so relayd can use it */
|
||
|
|
void tls_config_skip_private_key_check(struct tls_config *config);
|
||
|
|
|
||
|
|
#endif /* HEADER_TLS_INTERNAL_H */
|