X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=ssl%2Fssl_locl.h;h=e174def656a2c938d83dfcfe8d35b66923594021;hp=339657246c9c0c4e5606eb96a43f3357cbd4c563;hb=a71edf3ba275b946224b5bcded0a8ecfce1855c0;hpb=2c3823491d8812560922a58677e3ad2db4b2ec8d diff --git a/ssl/ssl_locl.h b/ssl/ssl_locl.h index 339657246c..e174def656 100644 --- a/ssl/ssl_locl.h +++ b/ssl/ssl_locl.h @@ -165,6 +165,10 @@ # include # include +#include "record/record.h" +#include "statem/statem.h" +#include "packet_locl.h" + # ifdef OPENSSL_BUILD_SHLIBSSL # undef OPENSSL_EXTERN # define OPENSSL_EXTERN OPENSSL_EXPORT @@ -289,90 +293,96 @@ /* Bits for algorithm_mkey (key exchange algorithm) */ /* RSA key exchange */ -# define SSL_kRSA 0x00000001L +# define SSL_kRSA 0x00000001U /* DH cert, RSA CA cert */ -# define SSL_kDHr 0x00000002L +# define SSL_kDHr 0x00000002U /* DH cert, DSA CA cert */ -# define SSL_kDHd 0x00000004L +# define SSL_kDHd 0x00000004U /* tmp DH key no DH cert */ -# define SSL_kDHE 0x00000008L +# define SSL_kDHE 0x00000008U /* synonym */ # define SSL_kEDH SSL_kDHE -/* Kerberos5 key exchange */ -# define SSL_kKRB5 0x00000010L /* ECDH cert, RSA CA cert */ -# define SSL_kECDHr 0x00000020L +# define SSL_kECDHr 0x00000020U /* ECDH cert, ECDSA CA cert */ -# define SSL_kECDHe 0x00000040L +# define SSL_kECDHe 0x00000040U /* ephemeral ECDH */ -# define SSL_kECDHE 0x00000080L +# define SSL_kECDHE 0x00000080U /* synonym */ # define SSL_kEECDH SSL_kECDHE /* PSK */ -# define SSL_kPSK 0x00000100L +# define SSL_kPSK 0x00000100U /* GOST key exchange */ -# define SSL_kGOST 0x00000200L +# define SSL_kGOST 0x00000200U /* SRP */ -# define SSL_kSRP 0x00000400L +# define SSL_kSRP 0x00000400U + +# define SSL_kRSAPSK 0x00000800U +# define SSL_kECDHEPSK 0x00001000U +# define SSL_kDHEPSK 0x00002000U + +/* all PSK */ + +#define SSL_PSK (SSL_kPSK | SSL_kRSAPSK | SSL_kECDHEPSK | SSL_kDHEPSK) /* Bits for algorithm_auth (server authentication) */ /* RSA auth */ -# define SSL_aRSA 0x00000001L +# define SSL_aRSA 0x00000001U /* DSS auth */ -# define SSL_aDSS 0x00000002L +# define SSL_aDSS 0x00000002U /* no auth (i.e. use ADH or AECDH) */ -# define SSL_aNULL 0x00000004L +# define SSL_aNULL 0x00000004U /* Fixed DH auth (kDHd or kDHr) */ -# define SSL_aDH 0x00000008L +# define SSL_aDH 0x00000008U /* Fixed ECDH auth (kECDHe or kECDHr) */ -# define SSL_aECDH 0x00000010L -/* KRB5 auth */ -# define SSL_aKRB5 0x00000020L +# define SSL_aECDH 0x00000010U /* ECDSA auth*/ -# define SSL_aECDSA 0x00000040L +# define SSL_aECDSA 0x00000040U /* PSK auth */ -# define SSL_aPSK 0x00000080L -/* GOST R 34.10-94 signature auth */ -# define SSL_aGOST94 0x00000100L +# define SSL_aPSK 0x00000080U /* GOST R 34.10-2001 signature auth */ -# define SSL_aGOST01 0x00000200L +# define SSL_aGOST01 0x00000200U /* SRP auth */ -# define SSL_aSRP 0x00000400L +# define SSL_aSRP 0x00000400U /* Bits for algorithm_enc (symmetric encryption) */ -# define SSL_DES 0x00000001L -# define SSL_3DES 0x00000002L -# define SSL_RC4 0x00000004L -# define SSL_RC2 0x00000008L -# define SSL_IDEA 0x00000010L -# define SSL_eNULL 0x00000020L -# define SSL_AES128 0x00000040L -# define SSL_AES256 0x00000080L -# define SSL_CAMELLIA128 0x00000100L -# define SSL_CAMELLIA256 0x00000200L -# define SSL_eGOST2814789CNT 0x00000400L -# define SSL_SEED 0x00000800L -# define SSL_AES128GCM 0x00001000L -# define SSL_AES256GCM 0x00002000L - -# define SSL_AES (SSL_AES128|SSL_AES256|SSL_AES128GCM|SSL_AES256GCM) +# define SSL_DES 0x00000001U +# define SSL_3DES 0x00000002U +# define SSL_RC4 0x00000004U +# define SSL_RC2 0x00000008U +# define SSL_IDEA 0x00000010U +# define SSL_eNULL 0x00000020U +# define SSL_AES128 0x00000040U +# define SSL_AES256 0x00000080U +# define SSL_CAMELLIA128 0x00000100U +# define SSL_CAMELLIA256 0x00000200U +# define SSL_eGOST2814789CNT 0x00000400U +# define SSL_SEED 0x00000800U +# define SSL_AES128GCM 0x00001000U +# define SSL_AES256GCM 0x00002000U +# define SSL_AES128CCM 0x00004000U +# define SSL_AES256CCM 0x00008000U +# define SSL_AES128CCM8 0x00010000U +# define SSL_AES256CCM8 0x00020000U + +# define SSL_AES (SSL_AES128|SSL_AES256|SSL_AES128GCM|SSL_AES256GCM|SSL_AES128CCM|SSL_AES256CCM|SSL_AES128CCM8|SSL_AES256CCM8) # define SSL_CAMELLIA (SSL_CAMELLIA128|SSL_CAMELLIA256) /* Bits for algorithm_mac (symmetric authentication) */ -# define SSL_MD5 0x00000001L -# define SSL_SHA1 0x00000002L -# define SSL_GOST94 0x00000004L -# define SSL_GOST89MAC 0x00000008L -# define SSL_SHA256 0x00000010L -# define SSL_SHA384 0x00000020L +# define SSL_MD5 0x00000001U +# define SSL_SHA1 0x00000002U +# define SSL_GOST94 0x00000004U +# define SSL_GOST89MAC 0x00000008U +# define SSL_SHA256 0x00000010U +# define SSL_SHA384 0x00000020U /* Not a real MAC, just an indication it is part of cipher */ -# define SSL_AEAD 0x00000040L +# define SSL_AEAD 0x00000040U /* Bits for algorithm_ssl (protocol version) */ -# define SSL_SSLV3 0x00000002L +# define SSL_SSLV3 0x00000002U # define SSL_TLSV1 SSL_SSLV3/* for now */ -# define SSL_TLSV1_2 0x00000004L +# define SSL_TLSV1_2 0x00000004U /* Bits for algorithm2 (handshake digests and other extra flags) */ @@ -418,23 +428,26 @@ * and ciphers goes, another extension to SSL_SUPER and/or SSL_ULTRA would * be possible. */ -# define SSL_EXP_MASK 0x00000003L -# define SSL_STRONG_MASK 0x000001fcL +# define SSL_EXP_MASK 0x00000003U +# define SSL_STRONG_MASK 0x000001fcU +# define SSL_DEFAULT_MASK 0X00000200U -# define SSL_NOT_EXP 0x00000001L -# define SSL_EXPORT 0x00000002L +# define SSL_NOT_EXP 0x00000001U +# define SSL_EXPORT 0x00000002U -# define SSL_STRONG_NONE 0x00000004L -# define SSL_EXP40 0x00000008L +# define SSL_STRONG_NONE 0x00000004U +# define SSL_EXP40 0x00000008U # define SSL_MICRO (SSL_EXP40) -# define SSL_EXP56 0x00000010L +# define SSL_EXP56 0x00000010U # define SSL_MINI (SSL_EXP56) -# define SSL_LOW 0x00000020L -# define SSL_MEDIUM 0x00000040L -# define SSL_HIGH 0x00000080L -# define SSL_FIPS 0x00000100L +# define SSL_LOW 0x00000020U +# define SSL_MEDIUM 0x00000040U +# define SSL_HIGH 0x00000080U +# define SSL_FIPS 0x00000100U + +# define SSL_NOT_DEFAULT 0x00000200U -/* we have used 000001ff - 23 bits left to go */ +/* we have used 000003ff - 22 bits left to go */ /*- * Macros to check the export status and cipher strength for export ciphers. @@ -501,7 +514,6 @@ # define SSL_PKEY_DH_RSA 3 # define SSL_PKEY_DH_DSA 4 # define SSL_PKEY_ECC 5 -# define SSL_PKEY_GOST94 6 # define SSL_PKEY_GOST01 7 # define SSL_PKEY_NUM 8 @@ -520,27 +532,30 @@ #define CERT_PRIVATE_KEY 2 */ + +/* CipherSuite length. SSLv3 and all TLS versions. */ +#define TLS_CIPHER_LEN 2 /* used to hold info on the particular ciphers used */ struct ssl_cipher_st { - int valid; - const char *name; /* text name */ - unsigned long id; /* id, 4 bytes, first is version */ + uint32_t valid; + const char *name; /* text name */ + uint32_t id; /* id, 4 bytes, first is version */ /* - * changed in 0.9.9: these four used to be portions of a single value + * changed in 1.0.0: these four used to be portions of a single value * 'algorithms' */ - unsigned long algorithm_mkey; /* key exchange algorithm */ - unsigned long algorithm_auth; /* server authentication */ - unsigned long algorithm_enc; /* symmetric encryption */ - unsigned long algorithm_mac; /* symmetric authentication */ - unsigned long algorithm_ssl; /* (major) protocol version */ - unsigned long algo_strength; /* strength and export flags */ - unsigned long algorithm2; /* Extra flags */ - int strength_bits; /* Number of bits really used */ - int alg_bits; /* Number of bits for algorithm */ + uint32_t algorithm_mkey; /* key exchange algorithm */ + uint32_t algorithm_auth; /* server authentication */ + uint32_t algorithm_enc; /* symmetric encryption */ + uint32_t algorithm_mac; /* symmetric authentication */ + uint32_t algorithm_ssl; /* (major) protocol version */ + uint32_t algo_strength; /* strength and export flags */ + uint32_t algorithm2; /* Extra flags */ + int32_t strength_bits; /* Number of bits really used */ + uint32_t alg_bits; /* Number of bits for algorithm */ }; -/* Used to hold functions for SSLv2 or SSLv3/TLSv1 functions */ +/* Used to hold SSL/TLS functions */ struct ssl_method_st { int version; int (*ssl_new) (SSL *s); @@ -554,10 +569,8 @@ struct ssl_method_st { int (*ssl_shutdown) (SSL *s); int (*ssl_renegotiate) (SSL *s); int (*ssl_renegotiate_check) (SSL *s); - long (*ssl_get_message) (SSL *s, int st1, int stn, int mt, long - max, int *ok); - int (*ssl_read_bytes) (SSL *s, int type, unsigned char *buf, int len, - int peek); + int (*ssl_read_bytes) (SSL *s, int type, int *recvd_type, + unsigned char *buf, int len, int peek); int (*ssl_write_bytes) (SSL *s, int type, const void *buf_, int len); int (*ssl_dispatch_alert) (SSL *s); long (*ssl_ctrl) (SSL *s, int cmd, long larg, void *parg); @@ -583,7 +596,6 @@ struct ssl_method_st { * Cipher OCTET STRING, -- the 3 byte cipher ID * Session_ID OCTET STRING, -- the Session ID * Master_key OCTET STRING, -- the master key - * KRB5_principal OCTET STRING -- optional Kerberos principal * Key_Arg [ 0 ] IMPLICIT OCTET STRING, -- the optional Key argument * Time [ 1 ] EXPLICIT INTEGER, -- optional Start Time * Timeout [ 2 ] EXPLICIT INTEGER, -- optional Timeout ins seconds @@ -617,10 +629,6 @@ struct ssl_session_st { */ unsigned int sid_ctx_length; unsigned char sid_ctx[SSL_MAX_SID_CTX_LENGTH]; -# ifndef OPENSSL_NO_KRB5 - unsigned int krb5_client_princ_len; - unsigned char krb5_client_princ[SSL_MAX_KRB5_PRINCIPAL_LENGTH]; -# endif /* OPENSSL_NO_KRB5 */ # ifndef OPENSSL_NO_PSK char *psk_identity_hint; char *psk_identity; @@ -631,15 +639,11 @@ struct ssl_session_st { * to disable session caching and tickets. */ int not_resumable; - /* The cert is the certificate used to establish this connection */ - struct sess_cert_st /* SESS_CERT */ *sess_cert; - /* - * This is the cert for the other end. On clients, it will be the same as - * sess_cert->peer_key->x509 (the latter is not enough as sess_cert is - * not retained in the external representation of sessions, see - * ssl_asn1.c). - */ + /* This is the cert and type for the other end. */ X509 *peer; + int peer_type; + /* Certificate chain of peer */ + STACK_OF(X509) *peer_chain; /* * when app_verify_callback accepts a session where the peer's * certificate is not ok, we must remember the error for session reuse: @@ -659,23 +663,21 @@ struct ssl_session_st { * implement a maximum cache size. */ struct ssl_session_st *prev, *next; -# ifndef OPENSSL_NO_TLSEXT char *tlsext_hostname; -# ifndef OPENSSL_NO_EC +# ifndef OPENSSL_NO_EC size_t tlsext_ecpointformatlist_length; unsigned char *tlsext_ecpointformatlist; /* peer's list */ size_t tlsext_ellipticcurvelist_length; unsigned char *tlsext_ellipticcurvelist; /* peer's list */ -# endif /* OPENSSL_NO_EC */ +# endif /* OPENSSL_NO_EC */ /* RFC4507 info */ unsigned char *tlsext_tick; /* Session ticket */ size_t tlsext_ticklen; /* Session ticket length */ unsigned long tlsext_tick_lifetime_hint; /* Session lifetime hint in seconds */ -# endif # ifndef OPENSSL_NO_SRP char *srp_username; # endif - long flags; + uint32_t flags; }; /* Extended master secret support */ @@ -703,20 +705,18 @@ typedef struct srp_ctx_st { # endif +typedef struct ssl_comp_st SSL_COMP; struct ssl_comp_st { int id; const char *name; -# ifndef OPENSSL_NO_COMP COMP_METHOD *method; -# else - char *method; -# endif }; DECLARE_STACK_OF(SSL_COMP) DECLARE_LHASH_OF(SSL_SESSION); + struct ssl_ctx_st { const SSL_METHOD *method; STACK_OF(SSL_CIPHER) *cipher_list; @@ -736,7 +736,7 @@ struct ssl_ctx_st { * SSL_SESS_CACHE_SERVER, Default is SSL_SESSION_CACHE_SERVER, which * means only SSL_accept which cache SSL_SESSIONS. */ - int session_cache_mode; + uint32_t session_cache_mode; /* * If timeout is not 0, it is the default timeout value set when * SSL_new() is called. This has been put in to make life easier to set @@ -798,7 +798,7 @@ struct ssl_ctx_st { unsigned int *cookie_len); /* verify cookie callback */ - int (*app_verify_cookie_cb) (SSL *ssl, unsigned char *cookie, + int (*app_verify_cookie_cb) (SSL *ssl, const unsigned char *cookie, unsigned int cookie_len); CRYPTO_EX_DATA ex_data; @@ -822,8 +822,8 @@ struct ssl_ctx_st { * SSL_new) */ - unsigned long options; - unsigned long mode; + uint32_t options; + uint32_t mode; long max_cert_list; struct cert_st /* CERT */ *cert; @@ -834,7 +834,7 @@ struct ssl_ctx_st { const void *buf, size_t len, SSL *ssl, void *arg); void *msg_callback_arg; - int verify_mode; + uint32_t verify_mode; unsigned int sid_ctx_length; unsigned char sid_ctx[SSL_MAX_SID_CTX_LENGTH]; /* called 'verify_callback' in the SSL */ @@ -860,7 +860,6 @@ struct ssl_ctx_st { ENGINE *client_cert_engine; # endif -# ifndef OPENSSL_NO_TLSEXT /* TLS extensions servername callback */ int (*tlsext_servername_callback) (SSL *, int *, void *); void *tlsext_servername_arg; @@ -878,10 +877,8 @@ struct ssl_ctx_st { /* Callback for status request */ int (*tlsext_status_cb) (SSL *ssl, void *arg); void *tlsext_status_arg; -# endif # ifndef OPENSSL_NO_PSK - char *psk_identity_hint; unsigned int (*psk_client_callback) (SSL *ssl, const char *hint, char *identity, unsigned int max_identity_len, @@ -896,9 +893,7 @@ struct ssl_ctx_st { SRP_CTX srp_ctx; /* ctx for SRP authentication */ # endif -# ifndef OPENSSL_NO_TLSEXT - -# ifndef OPENSSL_NO_NEXTPROTONEG +# ifndef OPENSSL_NO_NEXTPROTONEG /* Next protocol negotiation information */ /* (for experimental NPN extension). */ @@ -918,7 +913,7 @@ struct ssl_ctx_st { const unsigned char *in, unsigned int inlen, void *arg); void *next_proto_select_cb_arg; -# endif +# endif /* * ALPN information (we are in the process of transitioning from NPN to @@ -951,7 +946,6 @@ struct ssl_ctx_st { /* SRTP profiles we are willing to do from RFC 5764 */ STACK_OF(SRTP_PROTECTION_PROFILE) *srtp_profiles; -# endif /* * Callback for disabling session caching and ticket support on a session * basis, depending on the chosen cipher. @@ -973,8 +967,7 @@ struct ssl_st { * DTLS1_VERSION) */ int version; - /* SSL_ST_CONNECT or SSL_ST_ACCEPT */ - int type; + /* SSLv3 */ const SSL_METHOD *method; /* @@ -993,8 +986,7 @@ struct ssl_st { * request needs re-doing when in SSL_accept or SSL_connect */ int rwstate; - /* true when we are actually in SSL_accept() or SSL_connect() */ - int in_handshake; + int (*handshake_func) (SSL *); /* * Imagine that here's a boolean member "init" that is switched as soon @@ -1003,7 +995,7 @@ struct ssl_st { * handshake_func is == 0 until then, we use this test instead of an * "init" member. */ - /* are we the server side? - mostly used by SSL_clear */ + /* are we the server side? */ int server; /* * Generate a new session or reuse an old one. @@ -1017,21 +1009,17 @@ struct ssl_st { /* we have shut things down, 0x01 sent, 0x02 for received */ int shutdown; /* where we are */ - int state; - /* where we are when reading */ - int rstate; + OSSL_STATEM statem; + BUF_MEM *init_buf; /* buffer used during init */ void *init_msg; /* pointer to handshake message body, set by * ssl3_get_message() */ int init_num; /* amount read/written */ int init_off; /* amount read/written */ - /* used internally to point at a raw packet */ - unsigned char *packet; - unsigned int packet_length; + struct ssl3_state_st *s3; /* SSLv3 variables */ struct dtls1_state_st *d1; /* DTLSv1 variables */ - int read_ahead; /* Read as many input bytes as possible (for - * non-blocking reads) */ + /* callback that allows applications to peek at protocol messages */ void (*msg_callback) (int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg); @@ -1045,21 +1033,13 @@ struct ssl_st { * These are the ones being used, the ones in SSL_SESSION are the ones to * be 'copied' into these ones */ - int mac_flags; + uint32_t mac_flags; EVP_CIPHER_CTX *enc_read_ctx; /* cryptographic state */ EVP_MD_CTX *read_hash; /* used for mac generation */ -# ifndef OPENSSL_NO_COMP + COMP_CTX *compress; /* compression */ COMP_CTX *expand; /* uncompress */ -# else - char *expand; -# endif EVP_CIPHER_CTX *enc_write_ctx; /* cryptographic state */ EVP_MD_CTX *write_hash; /* used for mac generation */ -# ifndef OPENSSL_NO_COMP - COMP_CTX *compress; /* compression */ -# else - char *compress; -# endif /* session info */ /* client cert? */ /* This is used to hold the server certificate used */ @@ -1079,7 +1059,7 @@ struct ssl_st { * 0 don't care about verify failure. * 1 fail if verify fails */ - int verify_mode; + uint32_t verify_mode; /* fail if callback returns 0 */ int (*verify_callback) (int ok, X509_STORE_CTX *ctx); /* optional informational callback */ @@ -1088,10 +1068,6 @@ struct ssl_st { int error; /* actual code */ int error_code; -# ifndef OPENSSL_NO_KRB5 - /* Kerberos 5 context */ - KSSL_CTX *kssl_ctx; -# endif /* OPENSSL_NO_KRB5 */ # ifndef OPENSSL_NO_PSK unsigned int (*psk_client_callback) (SSL *ssl, const char *hint, char *identity, @@ -1115,15 +1091,15 @@ struct ssl_st { STACK_OF(X509_NAME) *client_CA; int references; /* protocol behaviour */ - unsigned long options; + uint32_t options; /* API behaviour */ - unsigned long mode; + uint32_t mode; long max_cert_list; int first_packet; /* what was passed, used for SSLv3/TLS rollback check */ int client_version; unsigned int max_send_fragment; -# ifndef OPENSSL_NO_TLSEXT + /* TLS extension debug callback */ void (*tlsext_debug_cb) (SSL *s, int client_server, int type, unsigned char *data, int len, void *arg); @@ -1149,14 +1125,14 @@ struct ssl_st { int tlsext_ocsp_resplen; /* RFC4507 session ticket expected to be received or sent */ int tlsext_ticket_expected; -# ifndef OPENSSL_NO_EC +# ifndef OPENSSL_NO_EC size_t tlsext_ecpointformatlist_length; /* our list */ unsigned char *tlsext_ecpointformatlist; size_t tlsext_ellipticcurvelist_length; /* our list */ unsigned char *tlsext_ellipticcurvelist; -# endif /* OPENSSL_NO_EC */ +# endif /* OPENSSL_NO_EC */ /* TLS Session Ticket extension override */ TLS_SESSION_TICKET_EXT *tlsext_session_ticket; /* TLS Session Ticket extension callback */ @@ -1166,7 +1142,7 @@ struct ssl_st { tls_session_secret_cb_fn tls_session_secret_cb; void *tls_session_secret_cb_arg; SSL_CTX *initial_ctx; /* initial ctx, used to store sessions */ -# ifndef OPENSSL_NO_NEXTPROTONEG +# ifndef OPENSSL_NO_NEXTPROTONEG /* * Next protocol negotiation. For the client, this is the protocol that * we sent in NextProtocol and is set when handling ServerHello @@ -1176,8 +1152,8 @@ struct ssl_st { */ unsigned char *next_proto_negotiated; unsigned char next_proto_negotiated_len; -# endif -# define session_ctx initial_ctx +# endif +# define session_ctx initial_ctx /* What we'll do */ STACK_OF(SRTP_PROTECTION_PROFILE) *srtp_profiles; /* What's been chosen */ @@ -1199,9 +1175,7 @@ struct ssl_st { */ unsigned char *alpn_client_proto_list; unsigned alpn_client_proto_list_len; -# else -# define session_ctx ctx -# endif /* OPENSSL_NO_TLSEXT */ + /*- * 1 if we are renegotiating. * 2 if we are a server and are inside a handshake @@ -1217,68 +1191,15 @@ struct ssl_st { * basis, depending on the chosen cipher. */ int (*not_resumable_session_cb) (SSL *ssl, int is_forward_secure); + + RECORD_LAYER rlayer; }; -typedef struct ssl3_record_st { - /* type of record */ - /* - * r - */ int type; - /* How many bytes available */ - /* - * rw - */ unsigned int length; - /* - * How many bytes were available before padding was removed? This is used - * to implement the MAC check in constant time for CBC records. - */ - /* - * rw - */ unsigned int orig_len; - /* read/write offset into 'buf' */ - /* - * r - */ unsigned int off; - /* pointer to the record data */ - /* - * rw - */ unsigned char *data; - /* where the decode bytes are */ - /* - * rw - */ unsigned char *input; - /* only used with decompression - malloc()ed */ - /* - * r - */ unsigned char *comp; - /* epoch number, needed by DTLS1 */ - /* - * r - */ unsigned long epoch; - /* sequence number, needed by DTLS1 */ - /* - * r - */ unsigned char seq_num[8]; -} SSL3_RECORD; - -typedef struct ssl3_buffer_st { - /* at least SSL3_RT_MAX_PACKET_SIZE bytes, see ssl3_setup_buffers() */ - unsigned char *buf; - /* buffer size */ - size_t len; - /* where to 'copy from' */ - int offset; - /* how many bytes left */ - int left; -} SSL3_BUFFER; typedef struct ssl3_state_st { long flags; - int delay_buf_pop_ret; - unsigned char read_sequence[8]; int read_mac_secret_size; unsigned char read_mac_secret[EVP_MAX_MD_SIZE]; - unsigned char write_sequence[8]; int write_mac_secret_size; unsigned char write_mac_secret[EVP_MAX_MD_SIZE]; unsigned char server_random[SSL3_RANDOM_SIZE]; @@ -1288,24 +1209,6 @@ typedef struct ssl3_state_st { int empty_fragment_done; /* The value of 'extra' when the buffers were initialized */ int init_extra; - SSL3_BUFFER rbuf; /* read IO goes into here */ - SSL3_BUFFER wbuf; /* write IO goes into here */ - SSL3_RECORD rrec; /* each decoded record goes in here */ - SSL3_RECORD wrec; /* goes out from here */ - /* - * storage for Alert/Handshake protocol data received but not yet - * processed by ssl3_read_bytes: - */ - unsigned char alert_fragment[2]; - unsigned int alert_fragment_len; - unsigned char handshake_fragment[4]; - unsigned int handshake_fragment_len; - /* partial write - check the numbers match */ - unsigned int wnum; /* number of bytes sent so far */ - int wpend_tot; /* number bytes written */ - int wpend_type; - int wpend_ret; /* number of bytes submitted */ - const unsigned char *wpend_buf; /* used during startup, digest all incoming/outgoing packets */ BIO *handshake_buffer; /* @@ -1353,9 +1256,6 @@ typedef struct ssl3_state_st { # ifndef OPENSSL_NO_EC EC_KEY *ecdh; /* holds short lived ECDH key */ # endif - /* used when SSL_ST_FLUSH_DATA is entered */ - int next_state; - int reuse_message; /* used for certificate requests */ int cert_req; int ctype_num; @@ -1374,6 +1274,46 @@ typedef struct ssl3_state_st { char *new_compression; # endif int cert_request; + /* Raw values of the cipher list from a client */ + unsigned char *ciphers_raw; + size_t ciphers_rawlen; + /* Temporary storage for premaster secret */ + unsigned char *pms; + size_t pmslen; +#ifndef OPENSSL_NO_PSK + /* Temporary storage for PSK key */ + unsigned char *psk; + size_t psklen; +#endif + /* + * signature algorithms peer reports: e.g. supported signature + * algorithms extension for server or as part of a certificate + * request for client. + */ + unsigned char *peer_sigalgs; + /* Size of above array */ + size_t peer_sigalgslen; + /* Digest peer uses for signing */ + const EVP_MD *peer_md; + /* Array of digests used for signing */ + const EVP_MD *md[SSL_PKEY_NUM]; + /* + * Set if corresponding CERT_PKEY can be used with current + * SSL session: e.g. appropriate curve, signature algorithms etc. + * If zero it can't be used at all. + */ + uint32_t valid_flags[SSL_PKEY_NUM]; + /* + * For servers the following masks are for the key and auth algorithms + * that are supported by the certs below. For clients they are masks of + * *disabled* algorithms based on the current session. + */ + uint32_t mask_k; + uint32_t mask_a; + uint32_t export_mask_k; + uint32_t export_mask_a; + /* Client only */ + uint32_t mask_ssl; } tmp; /* Connection binding to prevent renegotiation attacks */ @@ -1390,8 +1330,6 @@ typedef struct ssl3_state_st { int next_proto_neg_seen; # endif -# ifndef OPENSSL_NO_TLSEXT - /* * ALPN information (we are in the process of transitioning from NPN to * ALPN.) @@ -1414,7 +1352,17 @@ typedef struct ssl3_state_st { char is_probably_safari; # endif /* !OPENSSL_NO_EC */ -# endif /* !OPENSSL_NO_TLSEXT */ + /* For clients: peer temporary key */ +# ifndef OPENSSL_NO_RSA + RSA *peer_rsa_tmp; +# endif +# ifndef OPENSSL_NO_DH + DH *peer_dh_tmp; +# endif +# ifndef OPENSSL_NO_EC + EC_KEY *peer_ecdh_tmp; +# endif + } SSL3_STATE; @@ -1427,21 +1375,16 @@ typedef struct ssl3_state_st { /* Max MTU overhead we know about so far is 40 for IPv6 + 8 for UDP */ # define DTLS1_MAX_MTU_OVERHEAD 48 -typedef struct dtls1_bitmap_st { - unsigned long map; /* track 32 packets on 32-bit systems and 64 - * - on 64-bit systems */ - unsigned char max_seq_num[8]; /* max record number seen so far, 64-bit - * value in big-endian encoding */ -} DTLS1_BITMAP; +/* + * Flag used in message reuse to indicate the buffer contains the record + * header as well as the the handshake message header. + */ +# define DTLS1_SKIP_RECORD_HEADER 2 struct dtls1_retransmit_state { EVP_CIPHER_CTX *enc_write_ctx; /* cryptographic state */ EVP_MD_CTX *write_hash; /* used for mac generation */ -# ifndef OPENSSL_NO_COMP COMP_CTX *compress; /* compression */ -# else - char *compress; -# endif SSL_SESSION *session; unsigned short epoch; }; @@ -1456,11 +1399,6 @@ struct hm_header_st { struct dtls1_retransmit_state saved_retransmit_state; }; -struct ccs_header_st { - unsigned char type; - unsigned short seq; -}; - struct dtls1_timeout_st { /* Number of read timeouts so far */ unsigned int read_timeouts; @@ -1470,11 +1408,6 @@ struct dtls1_timeout_st { unsigned int num_alerts; }; -typedef struct record_pqueue_st { - unsigned short epoch; - pqueue q; -} record_pqueue; - typedef struct hm_fragment_st { struct hm_header_st msg_header; unsigned char *fragment; @@ -1482,42 +1415,20 @@ typedef struct hm_fragment_st { } hm_fragment; typedef struct dtls1_state_st { - unsigned int send_cookie; unsigned char cookie[DTLS1_COOKIE_LENGTH]; - unsigned char rcvd_cookie[DTLS1_COOKIE_LENGTH]; unsigned int cookie_len; - /* - * The current data and handshake epoch. This is initially - * undefined, and starts at zero once the initial handshake is - * completed - */ - unsigned short r_epoch; - unsigned short w_epoch; - /* records being received in the current epoch */ - DTLS1_BITMAP bitmap; - /* renegotiation starts a new set of sequence numbers */ - DTLS1_BITMAP next_bitmap; + unsigned int cookie_verified; + /* handshake message numbers */ unsigned short handshake_write_seq; unsigned short next_handshake_write_seq; unsigned short handshake_read_seq; - /* save last sequence number for retransmissions */ - unsigned char last_write_sequence[8]; - /* Received handshake records (processed and unprocessed) */ - record_pqueue unprocessed_rcds; - record_pqueue processed_rcds; + /* Buffered handshake messages */ pqueue buffered_messages; /* Buffered (sent) handshake records */ pqueue sent_messages; - /* - * Buffered application records. Only for records between CCS and - * Finished to prevent either protocol violation or unnecessary message - * loss. - */ - record_pqueue buffered_app_data; - /* Is set when listening for new connections with dtls1_listen() */ - unsigned int listen; + unsigned int link_mtu; /* max on-the-wire DTLS packet size */ unsigned int mtu; /* max DTLS packet size */ struct hm_header_st w_msg_hdr; @@ -1529,36 +1440,13 @@ typedef struct dtls1_state_st { struct timeval next_timeout; /* Timeout duration */ unsigned short timeout_duration; - /* - * storage for Alert/Handshake protocol data received but not yet - * processed by ssl3_read_bytes: - */ - unsigned char alert_fragment[DTLS1_AL_HEADER_LENGTH]; - unsigned int alert_fragment_len; - unsigned char handshake_fragment[DTLS1_HM_HEADER_LENGTH]; - unsigned int handshake_fragment_len; + unsigned int retransmitting; - /* - * Set when the handshake is ready to process peer's ChangeCipherSpec message. - * Cleared after the message has been processed. - */ - unsigned int change_cipher_spec_ok; # ifndef OPENSSL_NO_SCTP - /* used when SSL_ST_XX_FLUSH is entered */ - int next_state; int shutdown_received; # endif } DTLS1_STATE; -typedef struct dtls1_record_data_st { - unsigned char *packet; - unsigned int packet_length; - SSL3_BUFFER rbuf; - SSL3_RECORD rrec; -# ifndef OPENSSL_NO_SCTP - struct bio_dgram_sctp_rcvinfo recordinfo; -# endif -} DTLS1_RECORD_DATA; # ifndef OPENSSL_NO_EC @@ -1573,11 +1461,9 @@ typedef struct dtls1_record_data_st { typedef struct cert_pkey_st { X509 *x509; EVP_PKEY *privatekey; - /* Digest to use when signing */ - const EVP_MD *digest; /* Chain for this certificate */ STACK_OF(X509) *chain; -# ifndef OPENSSL_NO_TLSEXT + /*- * serverinfo data for this certificate. The data is in TLS Extension * wire format, specifically it's a series of records like: @@ -1587,13 +1473,6 @@ typedef struct cert_pkey_st { */ unsigned char *serverinfo; size_t serverinfo_length; -# endif - /* - * Set if CERT_PKEY can be used with current SSL session: e.g. - * appropriate curve, signature algorithms etc. If zero it can't be used - * at all. - */ - int valid_flags; } CERT_PKEY; /* Retrieve Suite B flags */ # define tls1_suiteb(s) (s->cert->cert_flags & SSL_CERT_FLAG_SUITEB_128_LOS) @@ -1607,7 +1486,7 @@ typedef struct { * Per-connection flags relating to this extension type: not used if * part of an SSL_CTX structure. */ - unsigned short ext_flags; + uint32_t ext_flags; custom_ext_add_cb add_cb; custom_ext_free_cb free_cb; void *add_arg; @@ -1641,18 +1520,6 @@ typedef struct cert_st { * an index, not a pointer. */ CERT_PKEY *key; - /* - * For servers the following masks are for the key and auth algorithms - * that are supported by the certs below. For clients they are masks of - * *disabled* algorithms based on the current session. - */ - int valid; - unsigned long mask_k; - unsigned long mask_a; - unsigned long export_mask_k; - unsigned long export_mask_a; - /* Client only */ - unsigned long mask_ssl; # ifndef OPENSSL_NO_RSA RSA *rsa_tmp; RSA *(*rsa_tmp_cb) (SSL *ssl, int is_export, int keysize); @@ -1670,7 +1537,7 @@ typedef struct cert_st { int ecdh_tmp_auto; # endif /* Flags related to certificates */ - unsigned int cert_flags; + uint32_t cert_flags; CERT_PKEY pkeys[SSL_PKEY_NUM]; /* * Certificate types (received or sent) in certificate request message. @@ -1679,16 +1546,6 @@ typedef struct cert_st { */ unsigned char *ctypes; size_t ctype_num; - /* Temporary storage for premaster secret */ - unsigned char *pms; - size_t pmslen; - /* - * signature algorithms peer reports: e.g. supported signature algorithms - * extension for server or as part of a certificate request for client. - */ - unsigned char *peer_sigalgs; - /* Size of above array */ - size_t peer_sigalgslen; /* * suppported signature algorithms. When set on a client this is sent in * the client hello as the supported signature algorithms extension. For @@ -1728,9 +1585,6 @@ typedef struct cert_st { */ X509_STORE *chain_store; X509_STORE *verify_store; - /* Raw values of the cipher list from a client */ - unsigned char *ciphers_raw; - size_t ciphers_rawlen; /* Custom extension methods for server and client */ custom_ext_methods cli_ext; custom_ext_methods srv_ext; @@ -1740,31 +1594,13 @@ typedef struct cert_st { /* Security level */ int sec_level; void *sec_ex; +#ifndef OPENSSL_NO_PSK + /* If not NULL psk identity hint to use for servers */ + char *psk_identity_hint; +#endif int references; /* >1 only if SSL_copy_session_id is used */ } CERT; -typedef struct sess_cert_st { - STACK_OF(X509) *cert_chain; /* as received from peer */ - /* The 'peer_...' members are used only by clients. */ - int peer_cert_type; - CERT_PKEY *peer_key; /* points to an element of peer_pkeys (never - * NULL!) */ - CERT_PKEY peer_pkeys[SSL_PKEY_NUM]; - /* - * Obviously we don't have the private keys of these, so maybe we - * shouldn't even use the CERT_PKEY type here. - */ -# ifndef OPENSSL_NO_RSA - RSA *peer_rsa_tmp; /* not used for SSL 2 */ -# endif -# ifndef OPENSSL_NO_DH - DH *peer_dh_tmp; /* not used for SSL 2 */ -# endif -# ifndef OPENSSL_NO_EC - EC_KEY *peer_ecdh_tmp; -# endif - int references; /* actually always 1 at the moment */ -} SESS_CERT; /* Structure containing decoded values of signature algorithms extension */ struct tls_sigalgs_st { /* NID of hash algorithm */ @@ -1808,8 +1644,6 @@ struct tls_sigalgs_st { */ # define FP_ICC (int (*)(const void *,const void *)) -# define ssl_put_cipher_by_char(ssl,ciph,ptr) \ - ((ssl)->method->put_cipher_by_char((ciph),(ptr))) /* * This is for the SSLv3/TLSv1.0 differences in crypto/hash stuff It is a bit @@ -1835,11 +1669,11 @@ typedef struct ssl3_enc_method { const unsigned char *, size_t, int use_context); /* Various flags indicating protocol version requirements */ - unsigned int enc_flags; + uint32_t enc_flags; /* Handshake header length */ unsigned int hhlen; /* Set the handshake header */ - void (*set_handshake_header) (SSL *s, int type, unsigned long len); + int (*set_handshake_header) (SSL *s, int type, unsigned long len); /* Write out handshake message */ int (*do_write) (SSL *s); } SSL3_ENC_METHOD; @@ -1906,7 +1740,6 @@ const SSL_METHOD *func_name(void) \ ssl3_shutdown, \ ssl3_renegotiate, \ ssl3_renegotiate_check, \ - ssl3_get_message, \ ssl3_read_bytes, \ ssl3_write_bytes, \ ssl3_dispatch_alert, \ @@ -1943,7 +1776,6 @@ const SSL_METHOD *func_name(void) \ ssl3_shutdown, \ ssl3_renegotiate, \ ssl3_renegotiate_check, \ - ssl3_get_message, \ ssl3_read_bytes, \ ssl3_write_bytes, \ ssl3_dispatch_alert, \ @@ -1964,43 +1796,6 @@ const SSL_METHOD *func_name(void) \ return &func_name##_data; \ } -# define IMPLEMENT_ssl23_meth_func(func_name, s_accept, s_connect, s_get_meth) \ -const SSL_METHOD *func_name(void) \ - { \ - static const SSL_METHOD func_name##_data= { \ - TLS1_2_VERSION, \ - tls1_new, \ - tls1_clear, \ - tls1_free, \ - s_accept, \ - s_connect, \ - ssl23_read, \ - ssl23_peek, \ - ssl23_write, \ - ssl_undefined_function, \ - ssl_undefined_function, \ - ssl_ok, \ - ssl3_get_message, \ - ssl3_read_bytes, \ - ssl3_write_bytes, \ - ssl3_dispatch_alert, \ - ssl3_ctrl, \ - ssl3_ctx_ctrl, \ - ssl23_get_cipher_by_char, \ - ssl23_put_cipher_by_char, \ - ssl_undefined_const_function, \ - ssl23_num_ciphers, \ - ssl23_get_cipher, \ - s_get_meth, \ - ssl23_default_timeout, \ - &TLSv1_2_enc_data, \ - ssl_undefined_void_function, \ - ssl3_callback_ctrl, \ - ssl3_ctx_callback_ctrl, \ - }; \ - return &func_name##_data; \ - } - # define IMPLEMENT_dtls1_meth_func(version, func_name, s_accept, s_connect, \ s_get_meth, enc_data) \ const SSL_METHOD *func_name(void) \ @@ -2018,7 +1813,6 @@ const SSL_METHOD *func_name(void) \ dtls1_shutdown, \ ssl3_renegotiate, \ ssl3_renegotiate_check, \ - dtls1_get_message, \ dtls1_read_bytes, \ dtls1_write_app_data_bytes, \ dtls1_dispatch_alert, \ @@ -2042,387 +1836,278 @@ const SSL_METHOD *func_name(void) \ struct openssl_ssl_test_functions { int (*p_ssl_init_wbio_buffer) (SSL *s, int push); int (*p_ssl3_setup_buffers) (SSL *s); - int (*p_tls1_process_heartbeat) (SSL *s); - int (*p_dtls1_process_heartbeat) (SSL *s); + int (*p_tls1_process_heartbeat) (SSL *s, + unsigned char *p, unsigned int length); + int (*p_dtls1_process_heartbeat) (SSL *s, + unsigned char *p, unsigned int length); }; # ifndef OPENSSL_UNIT_TEST void ssl_clear_cipher_ctx(SSL *s); int ssl_clear_bad_session(SSL *s); -CERT *ssl_cert_new(void); -CERT *ssl_cert_dup(CERT *cert); -void ssl_cert_set_default_md(CERT *cert); +__owur CERT *ssl_cert_new(void); +__owur CERT *ssl_cert_dup(CERT *cert); void ssl_cert_clear_certs(CERT *c); void ssl_cert_free(CERT *c); -SESS_CERT *ssl_sess_cert_new(void); -void ssl_sess_cert_free(SESS_CERT *sc); -int ssl_set_peer_cert_type(SESS_CERT *c, int type); -int ssl_get_new_session(SSL *s, int session); -int ssl_get_prev_session(SSL *s, unsigned char *session, int len, - const unsigned char *limit); -int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b); +__owur int ssl_get_new_session(SSL *s, int session); +__owur int ssl_get_prev_session(SSL *s, const PACKET *ext, + const PACKET *session_id); +__owur SSL_SESSION *ssl_session_dup(SSL_SESSION *src, int ticket); +__owur int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b); DECLARE_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id); -int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap, +__owur int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap, const SSL_CIPHER *const *bp); -STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s, unsigned char *p, - int num, - STACK_OF(SSL_CIPHER) **skp); -int ssl_cipher_list_to_bytes(SSL *s, STACK_OF(SSL_CIPHER) *sk, - unsigned char *p, - int (*put_cb) (const SSL_CIPHER *, - unsigned char *)); -STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *meth, +__owur STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *meth, STACK_OF(SSL_CIPHER) **pref, STACK_OF(SSL_CIPHER) **sorted, const char *rule_str, CERT *c); void ssl_update_cache(SSL *s, int mode); -int ssl_cipher_get_evp(const SSL_SESSION *s, const EVP_CIPHER **enc, +__owur int ssl_cipher_get_evp(const SSL_SESSION *s, const EVP_CIPHER **enc, const EVP_MD **md, int *mac_pkey_type, int *mac_secret_size, SSL_COMP **comp, int use_etm); -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(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); +__owur int ssl_get_handshake_digest(int i, long *mask, const EVP_MD **md); +__owur int ssl_cipher_get_cert_index(const SSL_CIPHER *c); +__owur const SSL_CIPHER *ssl_get_cipher_by_char(SSL *ssl, const unsigned char *ptr); +__owur int ssl_cert_set0_chain(SSL *s, SSL_CTX *ctx, STACK_OF(X509) *chain); +__owur int ssl_cert_set1_chain(SSL *s, SSL_CTX *ctx, STACK_OF(X509) *chain); +__owur int ssl_cert_add0_chain_cert(SSL *s, SSL_CTX *ctx, X509 *x); +__owur int ssl_cert_add1_chain_cert(SSL *s, SSL_CTX *ctx, X509 *x); +__owur int ssl_cert_select_current(CERT *c, X509 *x); +__owur int ssl_cert_set_current(CERT *c, long arg); +__owur X509 *ssl_cert_get0_next_certificate(CERT *c, int first); void ssl_cert_set_cert_cb(CERT *c, int (*cb) (SSL *ssl, void *arg), void *arg); -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(SSL *s, SSL_CTX *ctx, int flags); -int ssl_cert_set_cert_store(CERT *c, X509_STORE *store, int chain, int ref); +__owur int ssl_verify_cert_chain(SSL *s, STACK_OF(X509) *sk); +__owur int ssl_add_cert_chain(SSL *s, CERT_PKEY *cpk, unsigned long *l); +__owur int ssl_build_cert_chain(SSL *s, SSL_CTX *ctx, int flags); +__owur 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); +__owur int ssl_security(SSL *s, int op, int bits, int nid, void *other); +__owur 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); -CERT_PKEY *ssl_get_server_send_pkey(const SSL *s); -# ifndef OPENSSL_NO_TLSEXT -int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo, +__owur int ssl_undefined_void_function(void); +__owur int ssl_undefined_const_function(const SSL *s); +__owur CERT_PKEY *ssl_get_server_send_pkey(SSL *s); +__owur int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo, size_t *serverinfo_length); -# endif -EVP_PKEY *ssl_get_sign_pkey(SSL *s, const SSL_CIPHER *c, const EVP_MD **pmd); -int ssl_cert_type(X509 *x, EVP_PKEY *pkey); -void ssl_set_cert_masks(CERT *c, const SSL_CIPHER *cipher); -STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s); -int ssl_verify_alarm_type(long type); +__owur EVP_PKEY *ssl_get_sign_pkey(SSL *s, const SSL_CIPHER *c, const EVP_MD **pmd); +__owur int ssl_cert_type(X509 *x, EVP_PKEY *pkey); +void ssl_set_masks(SSL *s, const SSL_CIPHER *cipher); +__owur STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s); +__owur int ssl_verify_alarm_type(long type); void ssl_load_ciphers(void); -int ssl_fill_hello_random(SSL *s, int server, unsigned char *field, int len); +__owur int ssl_fill_hello_random(SSL *s, int server, unsigned char *field, int len); +__owur int ssl_generate_master_secret(SSL *s, unsigned char *pms, size_t pmslen, + int free_pms); -const SSL_CIPHER *ssl3_get_cipher_by_char(const unsigned char *p); -int ssl3_put_cipher_by_char(const SSL_CIPHER *c, unsigned char *p); +__owur const SSL_CIPHER *ssl3_get_cipher_by_char(const unsigned char *p); +__owur int ssl3_put_cipher_by_char(const SSL_CIPHER *c, unsigned char *p); void ssl3_init_finished_mac(SSL *s); -int ssl3_send_server_certificate(SSL *s); -int ssl3_send_newsession_ticket(SSL *s); -int ssl3_send_cert_status(SSL *s); -int ssl3_get_finished(SSL *s, int state_a, int state_b); -int ssl3_setup_key_block(SSL *s); -int ssl3_send_change_cipher_spec(SSL *s, int state_a, int state_b); -int ssl3_change_cipher_state(SSL *s, int which); +__owur int ssl3_setup_key_block(SSL *s); +__owur int ssl3_change_cipher_state(SSL *s, int which); void ssl3_cleanup_key_block(SSL *s); -int ssl3_do_write(SSL *s, int type); +__owur int ssl3_do_write(SSL *s, int type); int ssl3_send_alert(SSL *s, int level, int desc); -int ssl3_generate_master_secret(SSL *s, unsigned char *out, +__owur int ssl3_generate_master_secret(SSL *s, unsigned char *out, unsigned char *p, int len); -int ssl3_get_req_cert_type(SSL *s, unsigned char *p); -long ssl3_get_message(SSL *s, int st1, int stn, int mt, long max, int *ok); -int ssl3_send_finished(SSL *s, int a, int b, const char *sender, int slen); -int ssl3_num_ciphers(void); -const SSL_CIPHER *ssl3_get_cipher(unsigned int u); +__owur int ssl3_get_req_cert_type(SSL *s, unsigned char *p); +__owur int ssl3_num_ciphers(void); +__owur const SSL_CIPHER *ssl3_get_cipher(unsigned int u); int ssl3_renegotiate(SSL *ssl); int ssl3_renegotiate_check(SSL *ssl); -int ssl3_dispatch_alert(SSL *s); -int ssl3_read_bytes(SSL *s, int type, unsigned char *buf, int len, int peek); -int ssl3_write_bytes(SSL *s, int type, const void *buf, int len); -int ssl3_final_finish_mac(SSL *s, const char *sender, int slen, +__owur int ssl3_dispatch_alert(SSL *s); +__owur int ssl3_final_finish_mac(SSL *s, const char *sender, int slen, unsigned char *p); -int ssl3_cert_verify_mac(SSL *s, int md_nid, unsigned char *p); +__owur int ssl3_cert_verify_mac(SSL *s, int md_nid, unsigned char *p); void ssl3_finish_mac(SSL *s, const unsigned char *buf, int len); -int ssl3_enc(SSL *s, int send_data); -int n_ssl3_mac(SSL *ssl, unsigned char *md, int send_data); void ssl3_free_digest_list(SSL *s); -unsigned long ssl3_output_cert_chain(SSL *s, CERT_PKEY *cpk); -SSL_CIPHER *ssl3_choose_cipher(SSL *ssl, STACK_OF(SSL_CIPHER) *clnt, +__owur unsigned long ssl3_output_cert_chain(SSL *s, CERT_PKEY *cpk); +__owur SSL_CIPHER *ssl3_choose_cipher(SSL *ssl, STACK_OF(SSL_CIPHER) *clnt, STACK_OF(SSL_CIPHER) *srvr); -int ssl3_setup_buffers(SSL *s); -int ssl3_setup_read_buffer(SSL *s); -int ssl3_setup_write_buffer(SSL *s); -int ssl3_release_read_buffer(SSL *s); -int ssl3_release_write_buffer(SSL *s); -int ssl3_digest_cached_records(SSL *s); -int ssl3_new(SSL *s); +__owur int ssl3_digest_cached_records(SSL *s, int keep); +__owur int ssl3_new(SSL *s); void ssl3_free(SSL *s); -int ssl3_accept(SSL *s); -int ssl3_connect(SSL *s); -int ssl3_read(SSL *s, void *buf, int len); -int ssl3_peek(SSL *s, void *buf, int len); -int ssl3_write(SSL *s, const void *buf, int len); -int ssl3_shutdown(SSL *s); +__owur int ssl3_read(SSL *s, void *buf, int len); +__owur int ssl3_peek(SSL *s, void *buf, int len); +__owur int ssl3_write(SSL *s, const void *buf, int len); +__owur int ssl3_shutdown(SSL *s); void ssl3_clear(SSL *s); -long ssl3_ctrl(SSL *s, int cmd, long larg, void *parg); -long ssl3_ctx_ctrl(SSL_CTX *s, int cmd, long larg, void *parg); -long ssl3_callback_ctrl(SSL *s, int cmd, void (*fp) (void)); -long ssl3_ctx_callback_ctrl(SSL_CTX *s, int cmd, void (*fp) (void)); -int ssl3_pending(const SSL *s); - -void ssl3_record_sequence_update(unsigned char *seq); -int ssl3_do_change_cipher_spec(SSL *ssl); -long ssl3_default_timeout(void); - -void ssl3_set_handshake_header(SSL *s, int htype, unsigned long len); -int ssl3_handshake_write(SSL *s); - -int ssl23_num_ciphers(void); -const SSL_CIPHER *ssl23_get_cipher(unsigned int u); -int ssl23_read(SSL *s, void *buf, int len); -int ssl23_peek(SSL *s, void *buf, int len); -int ssl23_write(SSL *s, const void *buf, int len); -int ssl23_put_cipher_by_char(const SSL_CIPHER *c, unsigned char *p); -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); -int dtls1_read_bytes(SSL *s, int type, unsigned char *buf, int len, int peek); -int ssl3_do_compress(SSL *ssl); -int ssl3_do_uncompress(SSL *ssl); -int ssl3_write_pending(SSL *s, int type, const unsigned char *buf, - unsigned int len); -unsigned char *dtls1_set_message_header(SSL *s, - unsigned char *p, unsigned char mt, - unsigned long len, - unsigned long frag_off, - unsigned long frag_len); - -int dtls1_write_app_data_bytes(SSL *s, int type, const void *buf, int len); -int dtls1_write_bytes(SSL *s, int type, const void *buf, int len); - -int dtls1_send_change_cipher_spec(SSL *s, int a, int b); -int dtls1_send_finished(SSL *s, int a, int b, const char *sender, int slen); -int dtls1_read_failed(SSL *s, int code); -int dtls1_buffer_message(SSL *s, int ccs); -int dtls1_retransmit_message(SSL *s, unsigned short seq, +__owur long ssl3_ctrl(SSL *s, int cmd, long larg, void *parg); +__owur long ssl3_ctx_ctrl(SSL_CTX *s, int cmd, long larg, void *parg); +__owur long ssl3_callback_ctrl(SSL *s, int cmd, void (*fp) (void)); +__owur long ssl3_ctx_callback_ctrl(SSL_CTX *s, int cmd, void (*fp) (void)); + +__owur int ssl3_do_change_cipher_spec(SSL *ssl); +__owur long ssl3_default_timeout(void); + +__owur int ssl3_set_handshake_header(SSL *s, int htype, unsigned long len); +__owur int ssl3_handshake_write(SSL *s); + +__owur int ssl_allow_compression(SSL *s); + +__owur long tls1_default_timeout(void); +__owur int dtls1_do_write(SSL *s, int type); +void dtls1_set_message_header(SSL *s, + unsigned char *p, unsigned char mt, + unsigned long len, + unsigned long frag_off, + unsigned long frag_len); + +__owur int dtls1_write_app_data_bytes(SSL *s, int type, const void *buf, int len); + +__owur int dtls1_read_failed(SSL *s, int code); +__owur int dtls1_buffer_message(SSL *s, int ccs); +__owur int dtls1_retransmit_message(SSL *s, unsigned short seq, unsigned long frag_off, int *found); -int dtls1_get_queue_priority(unsigned short seq, int is_ccs); +__owur int dtls1_get_queue_priority(unsigned short seq, int is_ccs); int dtls1_retransmit_buffered_messages(SSL *s); void dtls1_clear_record_buffer(SSL *s); void dtls1_get_message_header(unsigned char *data, struct hm_header_st *msg_hdr); -void dtls1_get_ccs_header(unsigned char *data, struct ccs_header_st *ccs_hdr); -void dtls1_reset_seq_numbers(SSL *s, int rw); -long dtls1_default_timeout(void); -struct timeval *dtls1_get_timeout(SSL *s, struct timeval *timeleft); -int dtls1_check_timeout_num(SSL *s); -int dtls1_handle_timeout(SSL *s); -const SSL_CIPHER *dtls1_get_cipher(unsigned int u); +__owur long dtls1_default_timeout(void); +__owur struct timeval *dtls1_get_timeout(SSL *s, struct timeval *timeleft); +__owur int dtls1_check_timeout_num(SSL *s); +__owur int dtls1_handle_timeout(SSL *s); +__owur const SSL_CIPHER *dtls1_get_cipher(unsigned int u); void dtls1_start_timer(SSL *s); void dtls1_stop_timer(SSL *s); -int dtls1_is_timer_expired(SSL *s); +__owur int dtls1_is_timer_expired(SSL *s); void dtls1_double_timeout(SSL *s); -int dtls1_send_newsession_ticket(SSL *s); -unsigned int dtls1_min_mtu(SSL *s); -unsigned int dtls1_link_min_mtu(void); +__owur unsigned int dtls_raw_hello_verify_request(unsigned char *buf, + unsigned char *cookie, + unsigned char cookie_len); +__owur int dtls1_send_newsession_ticket(SSL *s); +__owur unsigned int dtls1_min_mtu(SSL *s); void dtls1_hm_fragment_free(hm_fragment *frag); +__owur int dtls1_query_mtu(SSL *s); -/* some client-only functions */ -int ssl3_client_hello(SSL *s); -int ssl3_get_server_hello(SSL *s); -int ssl3_get_certificate_request(SSL *s); -int ssl3_get_new_session_ticket(SSL *s); -int ssl3_get_cert_status(SSL *s); -int ssl3_get_server_done(SSL *s); -int ssl3_send_client_verify(SSL *s); -int ssl3_send_client_certificate(SSL *s); -int ssl_do_client_cert_cb(SSL *s, X509 **px509, EVP_PKEY **ppkey); -int ssl3_send_client_key_exchange(SSL *s); -int ssl3_get_key_exchange(SSL *s); -int ssl3_get_server_certificate(SSL *s); -int ssl3_check_cert_and_algorithm(SSL *s); -# ifndef OPENSSL_NO_TLSEXT -# ifndef OPENSSL_NO_NEXTPROTONEG -int ssl3_send_next_proto(SSL *s); -# endif -# endif - -int dtls1_client_hello(SSL *s); - -/* some server-only functions */ -int ssl3_get_client_hello(SSL *s); -int ssl3_send_server_hello(SSL *s); -int ssl3_send_hello_request(SSL *s); -int ssl3_send_server_key_exchange(SSL *s); -int ssl3_send_certificate_request(SSL *s); -int ssl3_send_server_done(SSL *s); -int ssl3_get_client_certificate(SSL *s); -int ssl3_get_client_key_exchange(SSL *s); -int ssl3_get_cert_verify(SSL *s); -# ifndef OPENSSL_NO_NEXTPROTONEG -int ssl3_get_next_proto(SSL *s); -# endif - -int ssl23_accept(SSL *s); -int ssl23_connect(SSL *s); -int ssl23_read_bytes(SSL *s, int n); -int ssl23_write_bytes(SSL *s); - -int tls1_new(SSL *s); +__owur int tls1_new(SSL *s); void tls1_free(SSL *s); void tls1_clear(SSL *s); long tls1_ctrl(SSL *s, int cmd, long larg, void *parg); long tls1_callback_ctrl(SSL *s, int cmd, void (*fp) (void)); -int dtls1_new(SSL *s); -int dtls1_accept(SSL *s); -int dtls1_connect(SSL *s); +__owur int dtls1_new(SSL *s); void dtls1_free(SSL *s); void dtls1_clear(SSL *s); long dtls1_ctrl(SSL *s, int cmd, long larg, void *parg); -int dtls1_shutdown(SSL *s); +__owur int dtls1_shutdown(SSL *s); -long dtls1_get_message(SSL *s, int st1, int stn, int mt, long max, int *ok); -int dtls1_get_record(SSL *s); -int do_dtls1_write(SSL *s, int type, const unsigned char *buf, - unsigned int len, int create_empty_fragement); -int dtls1_dispatch_alert(SSL *s); +__owur int dtls1_dispatch_alert(SSL *s); -int ssl_init_wbio_buffer(SSL *s, int push); +__owur int ssl_init_wbio_buffer(SSL *s, int push); void ssl_free_wbio_buffer(SSL *s); -int tls1_change_cipher_state(SSL *s, int which); -int tls1_setup_key_block(SSL *s); -int tls1_enc(SSL *s, int snd); -int tls1_final_finish_mac(SSL *s, +__owur int tls1_change_cipher_state(SSL *s, int which); +__owur int tls1_setup_key_block(SSL *s); +__owur int tls1_final_finish_mac(SSL *s, const char *str, int slen, unsigned char *p); -int tls1_cert_verify_mac(SSL *s, int md_nid, unsigned char *p); -int tls1_mac(SSL *ssl, unsigned char *md, int snd); -int tls1_generate_master_secret(SSL *s, unsigned char *out, +__owur int tls1_cert_verify_mac(SSL *s, int md_nid, unsigned char *p); +__owur int tls1_generate_master_secret(SSL *s, unsigned char *out, unsigned char *p, int len); -int tls1_export_keying_material(SSL *s, unsigned char *out, size_t olen, +__owur int tls1_export_keying_material(SSL *s, unsigned char *out, size_t olen, const char *label, size_t llen, const unsigned char *p, size_t plen, int use_context); -int tls1_alert_code(int code); -int ssl3_alert_code(int code); -int ssl_ok(SSL *s); +__owur int tls1_alert_code(int code); +__owur int ssl3_alert_code(int code); +__owur int ssl_ok(SSL *s); # ifndef OPENSSL_NO_EC -int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s); +__owur int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s); # endif SSL_COMP *ssl3_comp_find(STACK_OF(SSL_COMP) *sk, int n); # ifndef OPENSSL_NO_EC -int tls1_ec_curve_id2nid(int curve_id); -int tls1_ec_nid2curve_id(int nid); -int tls1_check_curve(SSL *s, const unsigned char *p, size_t len); -int tls1_shared_curve(SSL *s, int nmatch); -int tls1_set_curves(unsigned char **pext, size_t *pextlen, +__owur int tls1_ec_curve_id2nid(int curve_id); +__owur int tls1_ec_nid2curve_id(int nid); +__owur int tls1_check_curve(SSL *s, const unsigned char *p, size_t len); +__owur int tls1_shared_curve(SSL *s, int nmatch); +__owur int tls1_set_curves(unsigned char **pext, size_t *pextlen, int *curves, size_t ncurves); -int tls1_set_curves_list(unsigned char **pext, size_t *pextlen, +__owur int tls1_set_curves_list(unsigned char **pext, size_t *pextlen, const char *str); -int tls1_check_ec_tmp_key(SSL *s, unsigned long id); +__owur int tls1_check_ec_tmp_key(SSL *s, unsigned long id); # endif /* OPENSSL_NO_EC */ -# ifndef OPENSSL_NO_TLSEXT -int tls1_shared_list(SSL *s, +__owur int tls1_shared_list(SSL *s, const unsigned char *l1, size_t l1len, const unsigned char *l2, size_t l2len, int nmatch); -unsigned char *ssl_add_clienthello_tlsext(SSL *s, unsigned char *buf, +__owur unsigned char *ssl_add_clienthello_tlsext(SSL *s, unsigned char *buf, unsigned char *limit, int *al); -unsigned char *ssl_add_serverhello_tlsext(SSL *s, unsigned char *buf, +__owur unsigned char *ssl_add_serverhello_tlsext(SSL *s, unsigned char *buf, unsigned char *limit, int *al); -int ssl_parse_clienthello_tlsext(SSL *s, unsigned char **data, - unsigned char *d, int n); -int tls1_set_server_sigalgs(SSL *s); -int ssl_check_clienthello_tlsext_late(SSL *s); -int ssl_parse_serverhello_tlsext(SSL *s, unsigned char **data, - unsigned char *d, int n); -int ssl_prepare_clienthello_tlsext(SSL *s); -int ssl_prepare_serverhello_tlsext(SSL *s); - -# ifndef OPENSSL_NO_HEARTBEATS -int tls1_heartbeat(SSL *s); -int dtls1_heartbeat(SSL *s); -int tls1_process_heartbeat(SSL *s); -int dtls1_process_heartbeat(SSL *s); -# endif - -int tls1_process_ticket(SSL *s, unsigned char *session_id, int len, - const unsigned char *limit, SSL_SESSION **ret); - -int tls12_get_sigandhash(unsigned char *p, const EVP_PKEY *pk, +__owur int ssl_parse_clienthello_tlsext(SSL *s, PACKET *pkt); +__owur int tls1_set_server_sigalgs(SSL *s); +__owur int ssl_check_clienthello_tlsext_late(SSL *s); +__owur int ssl_parse_serverhello_tlsext(SSL *s, PACKET *pkt); +__owur int ssl_prepare_clienthello_tlsext(SSL *s); +__owur int ssl_prepare_serverhello_tlsext(SSL *s); + +# ifndef OPENSSL_NO_HEARTBEATS +__owur int tls1_heartbeat(SSL *s); +__owur int dtls1_heartbeat(SSL *s); +__owur int tls1_process_heartbeat(SSL *s, unsigned char *p, unsigned int length); +__owur int dtls1_process_heartbeat(SSL *s, unsigned char *p, unsigned int length); +# endif + +__owur int tls1_process_ticket(SSL *s, const PACKET *ext, + const PACKET *session_id, SSL_SESSION **ret); + +__owur int tls12_get_sigandhash(unsigned char *p, const EVP_PKEY *pk, 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); +__owur int tls12_get_sigid(const EVP_PKEY *pk); +__owur const EVP_MD *tls12_get_hash(unsigned char hash_alg); +void ssl_set_sig_mask(uint32_t *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); +__owur int tls1_set_sigalgs_list(CERT *c, const char *str, int client); +__owur int tls1_set_sigalgs(CERT *c, const int *salg, size_t salglen, int client); int tls1_check_chain(SSL *s, X509 *x, EVP_PKEY *pk, STACK_OF(X509) *chain, int idx); void tls1_set_cert_validity(SSL *s); -# endif # ifndef OPENSSL_NO_DH -DH *ssl_get_auto_dh(SSL *s); +__owur 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); +__owur int ssl_security_cert(SSL *s, SSL_CTX *ctx, X509 *x, int vfy, int is_ee); +__owur 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); +__owur 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, +__owur int ssl_add_serverhello_renegotiate_ext(SSL *s, unsigned char *p, int *len, int maxlen); -int ssl_parse_serverhello_renegotiate_ext(SSL *s, unsigned char *d, int len, +__owur int ssl_parse_serverhello_renegotiate_ext(SSL *s, PACKET *pkt, int *al); -int ssl_add_clienthello_renegotiate_ext(SSL *s, unsigned char *p, int *len, +__owur int ssl_add_clienthello_renegotiate_ext(SSL *s, unsigned char *p, int *len, int maxlen); -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, +__owur int ssl_parse_clienthello_renegotiate_ext(SSL *s, PACKET *pkt, int *al); +__owur long ssl_get_algorithm2(SSL *s); +__owur size_t tls12_copy_sigalgs(SSL *s, unsigned char *out, const unsigned char *psig, size_t psiglen); -int tls1_save_sigalgs(SSL *s, const unsigned char *data, int dsize); -int tls1_process_sigalgs(SSL *s); -size_t tls12_get_psigalgs(SSL *s, const unsigned char **psigs); -int tls12_check_peer_sigalg(const EVP_MD **pmd, SSL *s, +__owur int tls1_save_sigalgs(SSL *s, const unsigned char *data, int dsize); +__owur int tls1_process_sigalgs(SSL *s); +__owur size_t tls12_get_psigalgs(SSL *s, const unsigned char **psigs); +__owur 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 op); +__owur 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, +__owur 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); -int ssl_add_serverhello_use_srtp_ext(SSL *s, unsigned char *p, int *len, +__owur int ssl_parse_clienthello_use_srtp_ext(SSL *s, PACKET *pkt, int *al); +__owur int ssl_add_serverhello_use_srtp_ext(SSL *s, unsigned char *p, int *len, int maxlen); -int ssl_parse_serverhello_use_srtp_ext(SSL *s, unsigned char *d, int len, - int *al); +__owur int ssl_parse_serverhello_use_srtp_ext(SSL *s, PACKET *pkt, int *al); -int ssl_handshake_hash(SSL *s, unsigned char *out, int outlen); +__owur int ssl_handshake_hash(SSL *s, unsigned char *out, int outlen); /* s3_cbc.c */ -void ssl3_cbc_copy_mac(unsigned char *out, - const SSL3_RECORD *rec, unsigned md_size); -int ssl3_cbc_remove_padding(const SSL *s, - SSL3_RECORD *rec, - unsigned block_size, unsigned mac_size); -int tls1_cbc_remove_padding(const SSL *s, - SSL3_RECORD *rec, - unsigned block_size, unsigned mac_size); -char ssl3_cbc_record_digest_supported(const EVP_MD_CTX *ctx); +__owur char ssl3_cbc_record_digest_supported(const EVP_MD_CTX *ctx); void ssl3_cbc_digest_record(const EVP_MD_CTX *ctx, unsigned char *md_out, size_t *md_out_size, @@ -2437,19 +2122,21 @@ void tls_fips_digest_extra(const EVP_CIPHER_CTX *cipher_ctx, EVP_MD_CTX *mac_ctx, const unsigned char *data, size_t data_len, size_t orig_len); -int srp_verify_server_param(SSL *s, int *al); +__owur int srp_generate_server_master_secret(SSL *s); +__owur int srp_generate_client_master_secret(SSL *s); +__owur int srp_verify_server_param(SSL *s, int *al); /* t1_ext.c */ void custom_ext_init(custom_ext_methods *meths); -int custom_ext_parse(SSL *s, int server, +__owur int custom_ext_parse(SSL *s, int server, unsigned int ext_type, const unsigned char *ext_data, size_t ext_size, int *al); -int custom_ext_add(SSL *s, int server, +__owur int custom_ext_add(SSL *s, int server, unsigned char **pret, unsigned char *limit, int *al); -int custom_exts_copy(custom_ext_methods *dst, const custom_ext_methods *src); +__owur int custom_exts_copy(custom_ext_methods *dst, const custom_ext_methods *src); void custom_exts_free(custom_ext_methods *exts); # else