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cosmopolitan/third_party/mbedtls/ssl.h
Justine Tunney fa20edc44d
Reduce header complexity 
- Remove most __ASSEMBLER__ __LINKER__ ifdefs
- Rename libc/intrin/bits.h to libc/serialize.h
- Block pthread cancelation in fchmodat() polyfill
- Remove `clang-format off` statements in third_party
2023-11-28 14:39:42 -08:00

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#ifndef COSMOPOLITAN_THIRD_PARTY_MBEDTLS_SSL_H_
#define COSMOPOLITAN_THIRD_PARTY_MBEDTLS_SSL_H_
#include "third_party/mbedtls/bignum.h"
#include "third_party/mbedtls/config.h"
#include "third_party/mbedtls/dhm.h"
#include "third_party/mbedtls/ecdh.h"
#include "third_party/mbedtls/ecp.h"
#include "third_party/mbedtls/platform.h"
#include "third_party/mbedtls/ssl_ciphersuites.h"
#include "third_party/mbedtls/x509_crl.h"
#include "third_party/mbedtls/x509_crt.h"
COSMOPOLITAN_C_START_
/*
* SSL Error codes
*/
#define MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE -0x7080 /*< The requested feature is not available. */
#define MBEDTLS_ERR_SSL_BAD_INPUT_DATA -0x7100 /*< Bad input parameters to function. */
#define MBEDTLS_ERR_SSL_INVALID_MAC -0x7180 /*< Verification of the message MAC failed. */
#define MBEDTLS_ERR_SSL_INVALID_RECORD -0x7200 /*< An invalid SSL record was received. */
#define MBEDTLS_ERR_SSL_CONN_EOF -0x7280 /*< The connection indicated an EOF. */
#define MBEDTLS_ERR_SSL_UNKNOWN_CIPHER -0x7300 /*< An unknown cipher was received. */
#define MBEDTLS_ERR_SSL_NO_CIPHER_CHOSEN -0x7380 /*< The server has no ciphersuites in common with the client. */
#define MBEDTLS_ERR_SSL_NO_RNG -0x7400 /*< No RNG was provided to the SSL module. */
#define MBEDTLS_ERR_SSL_NO_CLIENT_CERTIFICATE -0x7480 /*< No client certification received from the client, but required by the authentication mode. */
#define MBEDTLS_ERR_SSL_CERTIFICATE_TOO_LARGE -0x7500 /*< Our own certificate(s) is/are too large to send in an SSL message. */
#define MBEDTLS_ERR_SSL_CERTIFICATE_REQUIRED -0x7580 /*< The own certificate is not set, but needed by the server. */
#define MBEDTLS_ERR_SSL_PRIVATE_KEY_REQUIRED -0x7600 /*< The own private key or pre-shared key is not set, but needed. */
#define MBEDTLS_ERR_SSL_CA_CHAIN_REQUIRED -0x7680 /*< No CA Chain is set, but required to operate. */
#define MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE -0x7700 /*< An unexpected message was received from our peer. */
#define MBEDTLS_ERR_SSL_FATAL_ALERT_MESSAGE -0x7780 /*< A fatal alert message was received from our peer. */
#define MBEDTLS_ERR_SSL_PEER_VERIFY_FAILED -0x7800 /*< Verification of our peer failed. */
#define MBEDTLS_ERR_SSL_PEER_CLOSE_NOTIFY -0x7880 /*< The peer notified us that the connection is going to be closed. */
#define MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO -0x7900 /*< Processing of the ClientHello handshake message failed. */
#define MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO -0x7980 /*< Processing of the ServerHello handshake message failed. */
#define MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE -0x7A00 /*< Processing of the Certificate handshake message failed. */
#define MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_REQUEST -0x7A80 /*< Processing of the CertificateRequest handshake message failed. */
#define MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE -0x7B00 /*< Processing of the ServerKeyExchange handshake message failed. */
#define MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO_DONE -0x7B80 /*< Processing of the ServerHelloDone handshake message failed. */
#define MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE -0x7C00 /*< Processing of the ClientKeyExchange handshake message failed. */
#define MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE_RP -0x7C80 /*< Processing of the ClientKeyExchange handshake message failed in DHM / ECDH Read Public. */
#define MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE_CS -0x7D00 /*< Processing of the ClientKeyExchange handshake message failed in DHM / ECDH Calculate Secret. */
#define MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_VERIFY -0x7D80 /*< Processing of the CertificateVerify handshake message failed. */
#define MBEDTLS_ERR_SSL_BAD_HS_CHANGE_CIPHER_SPEC -0x7E00 /*< Processing of the ChangeCipherSpec handshake message failed. */
#define MBEDTLS_ERR_SSL_BAD_HS_FINISHED -0x7E80 /*< Processing of the Finished handshake message failed. */
#define MBEDTLS_ERR_SSL_ALLOC_FAILED -0x7F00 /*< Memory allocation failed */
#define MBEDTLS_ERR_SSL_HW_ACCEL_FAILED -0x7F80 /*< Hardware acceleration function returned with error */
#define MBEDTLS_ERR_SSL_HW_ACCEL_FALLTHROUGH -0x6F80 /*< Hardware acceleration function skipped / left alone data */
#define MBEDTLS_ERR_SSL_COMPRESSION_FAILED -0x6F00 /*< Processing of the compression / decompression failed */
#define MBEDTLS_ERR_SSL_BAD_HS_PROTOCOL_VERSION -0x6E80 /*< Handshake protocol not within min/max boundaries */
#define MBEDTLS_ERR_SSL_BAD_HS_NEW_SESSION_TICKET -0x6E00 /*< Processing of the NewSessionTicket handshake message failed. */
#define MBEDTLS_ERR_SSL_SESSION_TICKET_EXPIRED -0x6D80 /*< Session ticket has expired. */
#define MBEDTLS_ERR_SSL_PK_TYPE_MISMATCH -0x6D00 /*< Public key type mismatch (eg, asked for RSA key exchange and presented EC key) */
#define MBEDTLS_ERR_SSL_UNKNOWN_IDENTITY -0x6C80 /*< Unknown identity received (eg, PSK identity) */
#define MBEDTLS_ERR_SSL_INTERNAL_ERROR -0x6C00 /*< Internal error (eg, unexpected failure in lower-level module) */
#define MBEDTLS_ERR_SSL_COUNTER_WRAPPING -0x6B80 /*< A counter would wrap (eg, too many messages exchanged). */
#define MBEDTLS_ERR_SSL_WAITING_SERVER_HELLO_RENEGO -0x6B00 /*< Unexpected message at ServerHello in renegotiation. */
#define MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED -0x6A80 /*< DTLS client must retry for hello verification */
#define MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL -0x6A00 /*< A buffer is too small to receive or write a message */
#define MBEDTLS_ERR_SSL_NO_USABLE_CIPHERSUITE -0x6980 /*< None of the common ciphersuites is usable (eg, no suitable certificate, see debug messages). */
#define MBEDTLS_ERR_SSL_WANT_READ -0x6900 /*< No data of requested type currently available on underlying transport. */
#define MBEDTLS_ERR_SSL_WANT_WRITE -0x6880 /*< Connection requires a write call. */
#define MBEDTLS_ERR_SSL_CANCELED -0x9900 /*< The POSIX thread was canceled. */
#define MBEDTLS_ERR_SSL_TIMEOUT -0x6800 /*< The operation timed out. */
#define MBEDTLS_ERR_SSL_CLIENT_RECONNECT -0x6780 /*< The client initiated a reconnect from the same port. */
#define MBEDTLS_ERR_SSL_UNEXPECTED_RECORD -0x6700 /*< Record header looks valid but is not expected. */
#define MBEDTLS_ERR_SSL_NON_FATAL -0x6680 /*< The alert message received indicates a non-fatal error. */
#define MBEDTLS_ERR_SSL_INVALID_VERIFY_HASH -0x6600 /*< Couldn't set the hash for verifying CertificateVerify */
#define MBEDTLS_ERR_SSL_CONTINUE_PROCESSING -0x6580 /*< Internal-only message signaling that further message-processing should be done */
#define MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS -0x6500 /*< The asynchronous operation is not completed yet. */
#define MBEDTLS_ERR_SSL_EARLY_MESSAGE -0x6480 /*< Internal-only message signaling that a message arrived early. */
#define MBEDTLS_ERR_SSL_UNEXPECTED_CID -0x6000 /*< An encrypted DTLS-frame with an unexpected CID was received. */
#define MBEDTLS_ERR_SSL_VERSION_MISMATCH -0x5F00 /*< An operation failed due to an unexpected version or configuration. */
#define MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS -0x7000 /*< A cryptographic operation is in progress. Try again later. */
#define MBEDTLS_ERR_SSL_BAD_CONFIG -0x5E80 /*< Invalid value in SSL config */
/*
* Various constants
*/
#define MBEDTLS_SSL_MAJOR_VERSION_3 3
#define MBEDTLS_SSL_MINOR_VERSION_0 0 /*!< SSL v3.0 */
#define MBEDTLS_SSL_MINOR_VERSION_1 1 /*!< TLS v1.0 */
#define MBEDTLS_SSL_MINOR_VERSION_2 2 /*!< TLS v1.1 */
#define MBEDTLS_SSL_MINOR_VERSION_3 3 /*!< TLS v1.2 */
#define MBEDTLS_SSL_MINOR_VERSION_4 4 /*!< TLS v1.3 (experimental) */
#define MBEDTLS_SSL_TRANSPORT_STREAM 0 /*!< TLS */
#define MBEDTLS_SSL_TRANSPORT_DATAGRAM 1 /*!< DTLS */
#define MBEDTLS_SSL_MAX_HOST_NAME_LEN 255 /*!< Maximum host name defined in RFC 1035 */
#define MBEDTLS_SSL_MAX_ALPN_NAME_LEN 255 /*!< Maximum size in bytes of a protocol name in alpn ext., RFC 7301 */
#define MBEDTLS_SSL_MAX_ALPN_LIST_LEN 65535 /*!< Maximum size in bytes of list in alpn ext., RFC 7301 */
/* RFC 6066 section 4, see also mfl_code_to_length in ssl_tls.c
* NONE must be zero so that memset()ing structure to zero works */
#define MBEDTLS_SSL_MAX_FRAG_LEN_NONE 0 /*!< don't use this extension */
#define MBEDTLS_SSL_MAX_FRAG_LEN_512 1 /*!< MaxFragmentLength 2^9 */
#define MBEDTLS_SSL_MAX_FRAG_LEN_1024 2 /*!< MaxFragmentLength 2^10 */
#define MBEDTLS_SSL_MAX_FRAG_LEN_2048 3 /*!< MaxFragmentLength 2^11 */
#define MBEDTLS_SSL_MAX_FRAG_LEN_4096 4 /*!< MaxFragmentLength 2^12 */
#define MBEDTLS_SSL_MAX_FRAG_LEN_INVALID 5 /*!< first invalid value */
#define MBEDTLS_SSL_IS_CLIENT 0
#define MBEDTLS_SSL_IS_SERVER 1
#define MBEDTLS_SSL_IS_NOT_FALLBACK 0
#define MBEDTLS_SSL_IS_FALLBACK 1
#define MBEDTLS_SSL_EXTENDED_MS_DISABLED 0
#define MBEDTLS_SSL_EXTENDED_MS_ENABLED 1
#define MBEDTLS_SSL_CID_DISABLED 0
#define MBEDTLS_SSL_CID_ENABLED 1
#define MBEDTLS_SSL_ETM_DISABLED 0
#define MBEDTLS_SSL_ETM_ENABLED 1
#define MBEDTLS_SSL_COMPRESS_NULL 0
#define MBEDTLS_SSL_COMPRESS_DEFLATE 1
#define MBEDTLS_SSL_VERIFY_NONE 0
#define MBEDTLS_SSL_VERIFY_OPTIONAL 1
#define MBEDTLS_SSL_VERIFY_REQUIRED 2
#define MBEDTLS_SSL_VERIFY_UNSET 3 /* Used only for sni_authmode */
#define MBEDTLS_SSL_LEGACY_RENEGOTIATION 0
#define MBEDTLS_SSL_SECURE_RENEGOTIATION 1
#define MBEDTLS_SSL_RENEGOTIATION_DISABLED 0
#define MBEDTLS_SSL_RENEGOTIATION_ENABLED 1
#define MBEDTLS_SSL_ANTI_REPLAY_DISABLED 0
#define MBEDTLS_SSL_ANTI_REPLAY_ENABLED 1
#define MBEDTLS_SSL_RENEGOTIATION_NOT_ENFORCED -1
#define MBEDTLS_SSL_RENEGO_MAX_RECORDS_DEFAULT 16
#define MBEDTLS_SSL_LEGACY_NO_RENEGOTIATION 0
#define MBEDTLS_SSL_LEGACY_ALLOW_RENEGOTIATION 1
#define MBEDTLS_SSL_LEGACY_BREAK_HANDSHAKE 2
#define MBEDTLS_SSL_TRUNC_HMAC_DISABLED 0
#define MBEDTLS_SSL_TRUNC_HMAC_ENABLED 1
#define MBEDTLS_SSL_TRUNCATED_HMAC_LEN 10 /* 80 bits, rfc 6066 section 7 */
#define MBEDTLS_SSL_SESSION_TICKETS_DISABLED 0
#define MBEDTLS_SSL_SESSION_TICKETS_ENABLED 1
#define MBEDTLS_SSL_CBC_RECORD_SPLITTING_DISABLED 0
#define MBEDTLS_SSL_CBC_RECORD_SPLITTING_ENABLED 1
#define MBEDTLS_SSL_ARC4_ENABLED 0
#define MBEDTLS_SSL_ARC4_DISABLED 1
#define MBEDTLS_SSL_PRESET_DEFAULT MBEDTLS_SSL_PRESET_SUITEC
#define MBEDTLS_SSL_PRESET_SUITEB 2
#define MBEDTLS_SSL_PRESET_SUITEC 0
#define MBEDTLS_SSL_CERT_REQ_CA_LIST_ENABLED 1
#define MBEDTLS_SSL_CERT_REQ_CA_LIST_DISABLED 0
#define MBEDTLS_SSL_DTLS_SRTP_MKI_UNSUPPORTED 0
#define MBEDTLS_SSL_DTLS_SRTP_MKI_SUPPORTED 1
#define MBEDTLS_SSL_UNEXPECTED_CID_IGNORE 0
#define MBEDTLS_SSL_UNEXPECTED_CID_FAIL 1
/*
* Default range for DTLS retransmission timer value, in milliseconds.
* RFC 6347 4.2.4.1 says from 1 second to 60 seconds.
*/
#define MBEDTLS_SSL_DTLS_TIMEOUT_DFL_MIN 1000
#define MBEDTLS_SSL_DTLS_TIMEOUT_DFL_MAX 60000
/**
* \name SECTION: Module settings
*
* The configuration options you can set for this module are in this section.
* Either change them in config.h or define them on the compiler command line.
* \{
*/
#if !defined(MBEDTLS_SSL_DEFAULT_TICKET_LIFETIME)
#define MBEDTLS_SSL_DEFAULT_TICKET_LIFETIME 86400 /*< Lifetime of session tickets (if enabled) */
#endif
/*
* Maximum fragment length in bytes,
* determines the size of each of the two internal I/O buffers.
*
* Note: the RFC defines the default size of SSL / TLS messages. If you
* change the value here, other clients / servers may not be able to
* communicate with you anymore. Only change this value if you control
* both sides of the connection and have it reduced at both sides, or
* if you're using the Max Fragment Length extension and you know all your
* peers are using it too!
*/
#if !defined(MBEDTLS_SSL_MAX_CONTENT_LEN)
#define MBEDTLS_SSL_MAX_CONTENT_LEN 16384 /*< Size of the input / output buffer */
#endif
#if !defined(MBEDTLS_SSL_IN_CONTENT_LEN)
#define MBEDTLS_SSL_IN_CONTENT_LEN MBEDTLS_SSL_MAX_CONTENT_LEN
#endif
#if !defined(MBEDTLS_SSL_OUT_CONTENT_LEN)
#define MBEDTLS_SSL_OUT_CONTENT_LEN MBEDTLS_SSL_MAX_CONTENT_LEN
#endif
/*
* Maximum number of heap-allocated bytes for the purpose of
* DTLS handshake message reassembly and future message buffering.
*/
#if !defined(MBEDTLS_SSL_DTLS_MAX_BUFFERING)
#define MBEDTLS_SSL_DTLS_MAX_BUFFERING 32768
#endif
/*
* Maximum length of CIDs for incoming and outgoing messages.
*/
#if !defined(MBEDTLS_SSL_CID_IN_LEN_MAX)
#define MBEDTLS_SSL_CID_IN_LEN_MAX 32
#endif
#if !defined(MBEDTLS_SSL_CID_OUT_LEN_MAX)
#define MBEDTLS_SSL_CID_OUT_LEN_MAX 32
#endif
#if !defined(MBEDTLS_SSL_CID_PADDING_GRANULARITY)
#define MBEDTLS_SSL_CID_PADDING_GRANULARITY 16
#endif
#if !defined(MBEDTLS_SSL_TLS1_3_PADDING_GRANULARITY)
#define MBEDTLS_SSL_TLS1_3_PADDING_GRANULARITY 1
#endif
/*
* Length of the verify data for secure renegotiation
*/
#if defined(MBEDTLS_SSL_PROTO_SSL3)
#define MBEDTLS_SSL_VERIFY_DATA_MAX_LEN 36
#else
#define MBEDTLS_SSL_VERIFY_DATA_MAX_LEN 12
#endif
/*
* Signaling ciphersuite values (SCSV)
*/
#define MBEDTLS_SSL_EMPTY_RENEGOTIATION_INFO 0xFF /*< renegotiation info ext */
#define MBEDTLS_SSL_FALLBACK_SCSV_VALUE 0x5600 /*< RFC 7507 section 2 */
/*
* Supported Signature and Hash algorithms (For TLS 1.2)
* RFC 5246 section 7.4.1.4.1
*/
#define MBEDTLS_SSL_HASH_NONE 0
#define MBEDTLS_SSL_HASH_MD5 1
#define MBEDTLS_SSL_HASH_SHA1 2
#define MBEDTLS_SSL_HASH_SHA224 3
#define MBEDTLS_SSL_HASH_SHA256 4
#define MBEDTLS_SSL_HASH_SHA384 5
#define MBEDTLS_SSL_HASH_SHA512 6
#define MBEDTLS_SSL_SIG_ANON 0
#define MBEDTLS_SSL_SIG_RSA 1
#define MBEDTLS_SSL_SIG_ECDSA 3
/*
* Client Certificate Types
* RFC 5246 section 7.4.4 plus RFC 4492 section 5.5
*/
#define MBEDTLS_SSL_CERT_TYPE_RSA_SIGN 1
#define MBEDTLS_SSL_CERT_TYPE_ECDSA_SIGN 64
/*
* Message, alert and handshake types
*/
#define MBEDTLS_SSL_MSG_CHANGE_CIPHER_SPEC 20
#define MBEDTLS_SSL_MSG_ALERT 21
#define MBEDTLS_SSL_MSG_HANDSHAKE 22
#define MBEDTLS_SSL_MSG_APPLICATION_DATA 23
#define MBEDTLS_SSL_MSG_CID 25
#define MBEDTLS_SSL_ALERT_LEVEL_WARNING 1
#define MBEDTLS_SSL_ALERT_LEVEL_FATAL 2
#define MBEDTLS_SSL_ALERT_MSG_CLOSE_NOTIFY 0 /* 0x00 */
#define MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE 10 /* 0x0A */
#define MBEDTLS_SSL_ALERT_MSG_BAD_RECORD_MAC 20 /* 0x14 */
#define MBEDTLS_SSL_ALERT_MSG_DECRYPTION_FAILED 21 /* 0x15 */
#define MBEDTLS_SSL_ALERT_MSG_RECORD_OVERFLOW 22 /* 0x16 */
#define MBEDTLS_SSL_ALERT_MSG_DECOMPRESSION_FAILURE 30 /* 0x1E */
#define MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE 40 /* 0x28 */
#define MBEDTLS_SSL_ALERT_MSG_NO_CERT 41 /* 0x29 */
#define MBEDTLS_SSL_ALERT_MSG_BAD_CERT 42 /* 0x2A */
#define MBEDTLS_SSL_ALERT_MSG_UNSUPPORTED_CERT 43 /* 0x2B */
#define MBEDTLS_SSL_ALERT_MSG_CERT_REVOKED 44 /* 0x2C */
#define MBEDTLS_SSL_ALERT_MSG_CERT_EXPIRED 45 /* 0x2D */
#define MBEDTLS_SSL_ALERT_MSG_CERT_UNKNOWN 46 /* 0x2E */
#define MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER 47 /* 0x2F */
#define MBEDTLS_SSL_ALERT_MSG_UNKNOWN_CA 48 /* 0x30 */
#define MBEDTLS_SSL_ALERT_MSG_ACCESS_DENIED 49 /* 0x31 */
#define MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR 50 /* 0x32 */
#define MBEDTLS_SSL_ALERT_MSG_DECRYPT_ERROR 51 /* 0x33 */
#define MBEDTLS_SSL_ALERT_MSG_EXPORT_RESTRICTION 60 /* 0x3C */
#define MBEDTLS_SSL_ALERT_MSG_PROTOCOL_VERSION 70 /* 0x46 */
#define MBEDTLS_SSL_ALERT_MSG_INSUFFICIENT_SECURITY 71 /* 0x47 */
#define MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR 80 /* 0x50 */
#define MBEDTLS_SSL_ALERT_MSG_INAPROPRIATE_FALLBACK 86 /* 0x56 */
#define MBEDTLS_SSL_ALERT_MSG_USER_CANCELED 90 /* 0x5A */
#define MBEDTLS_SSL_ALERT_MSG_NO_RENEGOTIATION 100 /* 0x64 */
#define MBEDTLS_SSL_ALERT_MSG_UNSUPPORTED_EXT 110 /* 0x6E */
#define MBEDTLS_SSL_ALERT_MSG_UNRECOGNIZED_NAME 112 /* 0x70 */
#define MBEDTLS_SSL_ALERT_MSG_UNKNOWN_PSK_IDENTITY 115 /* 0x73 */
#define MBEDTLS_SSL_ALERT_MSG_NO_APPLICATION_PROTOCOL 120 /* 0x78 */
#define MBEDTLS_SSL_HS_HELLO_REQUEST 0
#define MBEDTLS_SSL_HS_CLIENT_HELLO 1
#define MBEDTLS_SSL_HS_SERVER_HELLO 2
#define MBEDTLS_SSL_HS_HELLO_VERIFY_REQUEST 3
#define MBEDTLS_SSL_HS_NEW_SESSION_TICKET 4
#define MBEDTLS_SSL_HS_CERTIFICATE 11
#define MBEDTLS_SSL_HS_SERVER_KEY_EXCHANGE 12
#define MBEDTLS_SSL_HS_CERTIFICATE_REQUEST 13
#define MBEDTLS_SSL_HS_SERVER_HELLO_DONE 14
#define MBEDTLS_SSL_HS_CERTIFICATE_VERIFY 15
#define MBEDTLS_SSL_HS_CLIENT_KEY_EXCHANGE 16
#define MBEDTLS_SSL_HS_FINISHED 20
/*
* TLS extensions
*/
#define MBEDTLS_TLS_EXT_SERVERNAME 0
#define MBEDTLS_TLS_EXT_SERVERNAME_HOSTNAME 0
#define MBEDTLS_TLS_EXT_MAX_FRAGMENT_LENGTH 1
#define MBEDTLS_TLS_EXT_TRUNCATED_HMAC 4
#define MBEDTLS_TLS_EXT_SUPPORTED_ELLIPTIC_CURVES 10
#define MBEDTLS_TLS_EXT_SUPPORTED_POINT_FORMATS 11
#define MBEDTLS_TLS_EXT_SIG_ALG 13
#define MBEDTLS_TLS_EXT_USE_SRTP 14
#define MBEDTLS_TLS_EXT_ALPN 16
#define MBEDTLS_TLS_EXT_ENCRYPT_THEN_MAC 22 /* 0x16 */
#define MBEDTLS_TLS_EXT_EXTENDED_MASTER_SECRET 0x0017 /* 23 */
#define MBEDTLS_TLS_EXT_SESSION_TICKET 35
/* The value of the CID extension is still TBD as of
* draft-ietf-tls-dtls-connection-id-05
* (https://tools.ietf.org/html/draft-ietf-tls-dtls-connection-id-05) */
#define MBEDTLS_TLS_EXT_CID 254 /* TBD */
#define MBEDTLS_TLS_EXT_ECJPAKE_KKPP 256 /* experimental */
#define MBEDTLS_TLS_EXT_RENEGOTIATION_INFO 0xFF01
/*
* Size defines
*/
#if !defined(MBEDTLS_PSK_MAX_LEN)
#define MBEDTLS_PSK_MAX_LEN 32 /* 256 bits */
#endif
/* Dummy type used only for its size */
union mbedtls_ssl_premaster_secret
{
#if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED)
unsigned char _pms_rsa[48]; /* RFC 5246 8.1.1 */
#endif
#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED)
unsigned char _pms_dhm[MBEDTLS_MPI_MAX_SIZE]; /* RFC 5246 8.1.2 */
#endif
#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) || \
defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) || \
defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) || \
defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED)
unsigned char _pms_ecdh[MBEDTLS_ECP_MAX_BYTES]; /* RFC 4492 5.10 */
#endif
#if defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED)
unsigned char _pms_psk[4 + 2 * MBEDTLS_PSK_MAX_LEN]; /* RFC 4279 2 */
#endif
#if defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED)
unsigned char _pms_dhe_psk[4 + MBEDTLS_MPI_MAX_SIZE
+ MBEDTLS_PSK_MAX_LEN]; /* RFC 4279 3 */
#endif
#if defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED)
unsigned char _pms_rsa_psk[52 + MBEDTLS_PSK_MAX_LEN]; /* RFC 4279 4 */
#endif
#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED)
unsigned char _pms_ecdhe_psk[4 + MBEDTLS_ECP_MAX_BYTES
+ MBEDTLS_PSK_MAX_LEN]; /* RFC 5489 2 */
#endif
#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
unsigned char _pms_ecjpake[32]; /* Thread spec: SHA-256 output */
#endif
};
#define MBEDTLS_PREMASTER_SIZE sizeof( union mbedtls_ssl_premaster_secret )
/*
* SSL state machine
*/
typedef enum
{
MBEDTLS_SSL_HELLO_REQUEST,
MBEDTLS_SSL_CLIENT_HELLO,
MBEDTLS_SSL_SERVER_HELLO,
MBEDTLS_SSL_SERVER_CERTIFICATE,
MBEDTLS_SSL_SERVER_KEY_EXCHANGE,
MBEDTLS_SSL_CERTIFICATE_REQUEST,
MBEDTLS_SSL_SERVER_HELLO_DONE,
MBEDTLS_SSL_CLIENT_CERTIFICATE,
MBEDTLS_SSL_CLIENT_KEY_EXCHANGE,
MBEDTLS_SSL_CERTIFICATE_VERIFY,
MBEDTLS_SSL_CLIENT_CHANGE_CIPHER_SPEC,
MBEDTLS_SSL_CLIENT_FINISHED,
MBEDTLS_SSL_SERVER_CHANGE_CIPHER_SPEC,
MBEDTLS_SSL_SERVER_FINISHED,
MBEDTLS_SSL_FLUSH_BUFFERS,
MBEDTLS_SSL_HANDSHAKE_WRAPUP,
MBEDTLS_SSL_HANDSHAKE_OVER,
MBEDTLS_SSL_SERVER_NEW_SESSION_TICKET,
MBEDTLS_SSL_SERVER_HELLO_VERIFY_REQUEST_SENT,
}
mbedtls_ssl_states;
/*
* The tls_prf function types.
*/
typedef enum
{
MBEDTLS_SSL_TLS_PRF_NONE,
MBEDTLS_SSL_TLS_PRF_SSL3,
MBEDTLS_SSL_TLS_PRF_TLS1,
MBEDTLS_SSL_TLS_PRF_SHA384,
MBEDTLS_SSL_TLS_PRF_SHA256
}
mbedtls_tls_prf_types;
/**
* \brief Callback type: send data on the network.
*
* \note That callback may be either blocking or non-blocking.
*
* \param ctx Context for the send callback (typically a file descriptor)
* \param buf Buffer holding the data to send
* \param len Length of the data to send
*
* \return The callback must return the number of bytes sent if any,
* or a non-zero error code.
* If performing non-blocking I/O, \c MBEDTLS_ERR_SSL_WANT_WRITE
* must be returned when the operation would block.
*
* \note The callback is allowed to send fewer bytes than requested.
* It must always return the number of bytes actually sent.
*/
typedef int mbedtls_ssl_send_t( void *ctx,
const unsigned char *buf,
size_t len );
/**
* \brief Callback type: receive data from the network.
*
* \note That callback may be either blocking or non-blocking.
*
* \param ctx Context for the receive callback (typically a file
* descriptor)
* \param buf Buffer to write the received data to
* \param len Length of the receive buffer
*
* \return The callback must return the number of bytes received,
* or a non-zero error code.
* If performing non-blocking I/O, \c MBEDTLS_ERR_SSL_WANT_READ
* must be returned when the operation would block.
*
* \note The callback may receive fewer bytes than the length of the
* buffer. It must always return the number of bytes actually
* received and written to the buffer.
*/
typedef int mbedtls_ssl_recv_t( void *ctx,
unsigned char *buf,
size_t len );
/**
* \brief Callback type: receive data from the network, with timeout
*
* \note That callback must block until data is received, or the
* timeout delay expires, or the operation is interrupted by a
* signal.
*
* \param ctx Context for the receive callback (typically a file descriptor)
* \param buf Buffer to write the received data to
* \param len Length of the receive buffer
* \param timeout Maximum nomber of millisecondes to wait for data
* 0 means no timeout (potentially waiting forever)
*
* \return The callback must return the number of bytes received,
* or a non-zero error code:
* \c MBEDTLS_ERR_SSL_TIMEOUT if the operation timed out,
* \c MBEDTLS_ERR_SSL_WANT_READ if interrupted by a signal.
*
* \note The callback may receive fewer bytes than the length of the
* buffer. It must always return the number of bytes actually
* received and written to the buffer.
*/
typedef int mbedtls_ssl_recv_timeout_t( void *ctx,
unsigned char *buf,
size_t len,
uint32_t timeout );
/**
* \brief Callback type: set a pair of timers/delays to watch
*
* \param ctx Context pointer
* \param int_ms Intermediate delay in milliseconds
* \param fin_ms Final delay in milliseconds
* 0 cancels the current timer.
*
* \note This callback must at least store the necessary information
* for the associated \c mbedtls_ssl_get_timer_t callback to
* return correct information.
*
* \note If using a event-driven style of programming, an event must
* be generated when the final delay is passed. The event must
* cause a call to \c mbedtls_ssl_handshake() with the proper
* SSL context to be scheduled. Care must be taken to ensure
* that at most one such call happens at a time.
*
* \note Only one timer at a time must be running. Calling this
* function while a timer is running must cancel it. Cancelled
* timers must not generate any event.
*/
typedef void mbedtls_ssl_set_timer_t( void * ctx,
uint32_t int_ms,
uint32_t fin_ms );
/**
* \brief Callback type: get status of timers/delays
*
* \param ctx Context pointer
*
* \return This callback must return:
* -1 if cancelled (fin_ms == 0),
* 0 if none of the delays have passed,
* 1 if only the intermediate delay has passed,
* 2 if the final delay has passed.
*/
typedef int mbedtls_ssl_get_timer_t( void * ctx );
/* Defined below */
typedef struct mbedtls_ssl_session mbedtls_ssl_session;
typedef struct mbedtls_ssl_context mbedtls_ssl_context;
typedef struct mbedtls_ssl_config mbedtls_ssl_config;
/* Defined in ssl_internal.h */
typedef struct mbedtls_ssl_transform mbedtls_ssl_transform;
typedef struct mbedtls_ssl_handshake_params mbedtls_ssl_handshake_params;
typedef struct mbedtls_ssl_sig_hash_set_t mbedtls_ssl_sig_hash_set_t;
typedef struct mbedtls_ssl_key_cert mbedtls_ssl_key_cert;
typedef struct mbedtls_ssl_flight_item mbedtls_ssl_flight_item;
/**
* \brief Callback type: start external signature operation.
*
* This callback is called during an SSL handshake to start
* a signature decryption operation using an
* external processor. The parameter \p cert contains
* the public key; it is up to the callback function to
* determine how to access the associated private key.
*
* This function typically sends or enqueues a request, and
* does not wait for the operation to complete. This allows
* the handshake step to be non-blocking.
*
* The parameters \p ssl and \p cert are guaranteed to remain
* valid throughout the handshake. On the other hand, this
* function must save the contents of \p hash if the value
* is needed for later processing, because the \p hash buffer
* is no longer valid after this function returns.
*
* This function may call mbedtls_ssl_set_async_operation_data()
* to store an operation context for later retrieval
* by the resume or cancel callback.
*
* \note For RSA signatures, this function must produce output
* that is consistent with PKCS#1 v1.5 in the same way as
* mbedtls_rsa_pkcs1_sign(). Before the private key operation,
* apply the padding steps described in RFC 8017, section 9.2
* "EMSA-PKCS1-v1_5" as follows.
* - If \p md_alg is #MBEDTLS_MD_NONE, apply the PKCS#1 v1.5
* encoding, treating \p hash as the DigestInfo to be
* padded. In other words, apply EMSA-PKCS1-v1_5 starting
* from step 3, with `T = hash` and `tLen = hash_len`.
* - If `md_alg != MBEDTLS_MD_NONE`, apply the PKCS#1 v1.5
* encoding, treating \p hash as the hash to be encoded and
* padded. In other words, apply EMSA-PKCS1-v1_5 starting
* from step 2, with `digestAlgorithm` obtained by calling
* mbedtls_oid_get_oid_by_md() on \p md_alg.
*
* \note For ECDSA signatures, the output format is the DER encoding
* `Ecdsa-Sig-Value` defined in
* [RFC 4492 section 5.4](https://tools.ietf.org/html/rfc4492#section-5.4).
*
* \param ssl The SSL connection instance. It should not be
* modified other than via
* mbedtls_ssl_set_async_operation_data().
* \param cert Certificate containing the public key.
* In simple cases, this is one of the pointers passed to
* mbedtls_ssl_conf_own_cert() when configuring the SSL
* connection. However, if other callbacks are used, this
* property may not hold. For example, if an SNI callback
* is registered with mbedtls_ssl_conf_sni(), then
* this callback determines what certificate is used.
* \param md_alg Hash algorithm.
* \param hash Buffer containing the hash. This buffer is
* no longer valid when the function returns.
* \param hash_len Size of the \c hash buffer in bytes.
*
* \return 0 if the operation was started successfully and the SSL
* stack should call the resume callback immediately.
* \return #MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS if the operation
* was started successfully and the SSL stack should return
* immediately without calling the resume callback yet.
* \return #MBEDTLS_ERR_SSL_HW_ACCEL_FALLTHROUGH if the external
* processor does not support this key. The SSL stack will
* use the private key object instead.
* \return Any other error indicates a fatal failure and is
* propagated up the call chain. The callback should
* use \c MBEDTLS_ERR_PK_xxx error codes, and <b>must not</b>
* use \c MBEDTLS_ERR_SSL_xxx error codes except as
* directed in the documentation of this callback.
*/
typedef int mbedtls_ssl_async_sign_t( mbedtls_ssl_context *ssl,
mbedtls_x509_crt *cert,
mbedtls_md_type_t md_alg,
const unsigned char *hash,
size_t hash_len );
/**
* \brief Callback type: start external decryption operation.
*
* This callback is called during an SSL handshake to start
* an RSA decryption operation using an
* external processor. The parameter \p cert contains
* the public key; it is up to the callback function to
* determine how to access the associated private key.
*
* This function typically sends or enqueues a request, and
* does not wait for the operation to complete. This allows
* the handshake step to be non-blocking.
*
* The parameters \p ssl and \p cert are guaranteed to remain
* valid throughout the handshake. On the other hand, this
* function must save the contents of \p input if the value
* is needed for later processing, because the \p input buffer
* is no longer valid after this function returns.
*
* This function may call mbedtls_ssl_set_async_operation_data()
* to store an operation context for later retrieval
* by the resume or cancel callback.
*
* \warning RSA decryption as used in TLS is subject to a potential
* timing side channel attack first discovered by Bleichenbacher
* in 1998. This attack can be remotely exploitable
* in practice. To avoid this attack, you must ensure that
* if the callback performs an RSA decryption, the time it
* takes to execute and return the result does not depend
* on whether the RSA decryption succeeded or reported
* invalid padding.
*
* \param ssl The SSL connection instance. It should not be
* modified other than via
* mbedtls_ssl_set_async_operation_data().
* \param cert Certificate containing the public key.
* In simple cases, this is one of the pointers passed to
* mbedtls_ssl_conf_own_cert() when configuring the SSL
* connection. However, if other callbacks are used, this
* property may not hold. For example, if an SNI callback
* is registered with mbedtls_ssl_conf_sni(), then
* this callback determines what certificate is used.
* \param input Buffer containing the input ciphertext. This buffer
* is no longer valid when the function returns.
* \param input_len Size of the \p input buffer in bytes.
*
* \return 0 if the operation was started successfully and the SSL
* stack should call the resume callback immediately.
* \return #MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS if the operation
* was started successfully and the SSL stack should return
* immediately without calling the resume callback yet.
* \return #MBEDTLS_ERR_SSL_HW_ACCEL_FALLTHROUGH if the external
* processor does not support this key. The SSL stack will
* use the private key object instead.
* \return Any other error indicates a fatal failure and is
* propagated up the call chain. The callback should
* use \c MBEDTLS_ERR_PK_xxx error codes, and <b>must not</b>
* use \c MBEDTLS_ERR_SSL_xxx error codes except as
* directed in the documentation of this callback.
*/
typedef int mbedtls_ssl_async_decrypt_t( mbedtls_ssl_context *ssl,
mbedtls_x509_crt *cert,
const unsigned char *input,
size_t input_len );
/**
* \brief Callback type: resume external operation.
*
* This callback is called during an SSL handshake to resume
* an external operation started by the
* ::mbedtls_ssl_async_sign_t or
* ::mbedtls_ssl_async_decrypt_t callback.
*
* This function typically checks the status of a pending
* request or causes the request queue to make progress, and
* does not wait for the operation to complete. This allows
* the handshake step to be non-blocking.
*
* This function may call mbedtls_ssl_get_async_operation_data()
* to retrieve an operation context set by the start callback.
* It may call mbedtls_ssl_set_async_operation_data() to modify
* this context.
*
* Note that when this function returns a status other than
* #MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS, it must free any
* resources associated with the operation.
*
* \param ssl The SSL connection instance. It should not be
* modified other than via
* mbedtls_ssl_set_async_operation_data().
* \param output Buffer containing the output (signature or decrypted
* data) on success.
* \param output_len On success, number of bytes written to \p output.
* \param output_size Size of the \p output buffer in bytes.
*
* \return 0 if output of the operation is available in the
* \p output buffer.
* \return #MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS if the operation
* is still in progress. Subsequent requests for progress
* on the SSL connection will call the resume callback
* again.
* \return Any other error means that the operation is aborted.
* The SSL handshake is aborted. The callback should
* use \c MBEDTLS_ERR_PK_xxx error codes, and <b>must not</b>
* use \c MBEDTLS_ERR_SSL_xxx error codes except as
* directed in the documentation of this callback.
*/
typedef int mbedtls_ssl_async_resume_t( mbedtls_ssl_context *ssl,
unsigned char *output,
size_t *output_len,
size_t output_size );
/**
* \brief Callback type: cancel external operation.
*
* This callback is called if an SSL connection is closed
* while an asynchronous operation is in progress. Note that
* this callback is not called if the
* ::mbedtls_ssl_async_resume_t callback has run and has
* returned a value other than
* #MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS, since in that case
* the asynchronous operation has already completed.
*
* This function may call mbedtls_ssl_get_async_operation_data()
* to retrieve an operation context set by the start callback.
*
* \param ssl The SSL connection instance. It should not be
* modified.
*/
typedef void mbedtls_ssl_async_cancel_t( mbedtls_ssl_context *ssl );
#define MBEDTLS_TLS_SRTP_MAX_MKI_LENGTH 255
#define MBEDTLS_TLS_SRTP_MAX_PROFILE_LIST_LENGTH 4
/*
* For code readability use a typedef for DTLS-SRTP profiles
*
* Use_srtp extension protection profiles values as defined in
* http://www.iana.org/assignments/srtp-protection/srtp-protection.xhtml
*
* Reminder: if this list is expanded mbedtls_ssl_check_srtp_profile_value
* must be updated too.
*/
#define MBEDTLS_TLS_SRTP_AES128_CM_HMAC_SHA1_80 ( (uint16_t) 0x0001)
#define MBEDTLS_TLS_SRTP_AES128_CM_HMAC_SHA1_32 ( (uint16_t) 0x0002)
#define MBEDTLS_TLS_SRTP_NULL_HMAC_SHA1_80 ( (uint16_t) 0x0005)
#define MBEDTLS_TLS_SRTP_NULL_HMAC_SHA1_32 ( (uint16_t) 0x0006)
/* This one is not iana defined, but for code readability. */
#define MBEDTLS_TLS_SRTP_UNSET ( (uint16_t) 0x0000)
typedef uint16_t mbedtls_ssl_srtp_profile;
typedef struct mbedtls_dtls_srtp_info_t
{
/*! The SRTP profile that was negotiated. */
mbedtls_ssl_srtp_profile chosen_dtls_srtp_profile;
/*! The length of mki_value. */
uint16_t mki_len;
/*! The mki_value used, with max size of 256 bytes. */
unsigned char mki_value[MBEDTLS_TLS_SRTP_MAX_MKI_LENGTH];
}
mbedtls_dtls_srtp_info;
/*
* This structure is used for storing current session data.
*
* Note: when changing this definition, we need to check and update:
* - in tests/suites/test_suite_ssl.function:
* ssl_populate_session() and ssl_serialize_session_save_load()
* - in library/ssl_tls.c:
* mbedtls_ssl_session_init() and mbedtls_ssl_session_free()
* mbedtls_ssl_session_save() and ssl_session_load()
* ssl_session_copy()
*/
struct mbedtls_ssl_session
{
#if defined(MBEDTLS_HAVE_TIME)
mbedtls_time_t start; /*!< starting time */
#endif
int ciphersuite; /*!< chosen ciphersuite */
int compression; /*!< chosen compression */
size_t id_len; /*!< session id length */
unsigned char id[32]; /*!< session identifier */
unsigned char master[48]; /*!< the master secret */
#if defined(MBEDTLS_X509_CRT_PARSE_C)
#if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
mbedtls_x509_crt *peer_cert; /*!< peer X.509 cert chain */
#else /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
/*! The digest of the peer's end-CRT. This must be kept to detect CRT
* changes during renegotiation, mitigating the triple handshake attack. */
unsigned char *peer_cert_digest;
size_t peer_cert_digest_len;
mbedtls_md_type_t peer_cert_digest_type;
#endif /* !MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
#endif /* MBEDTLS_X509_CRT_PARSE_C */
uint32_t verify_result; /*!< verification result */
#if defined(MBEDTLS_SSL_SESSION_TICKETS) && defined(MBEDTLS_SSL_CLI_C)
unsigned char *ticket; /*!< RFC 5077 session ticket */
size_t ticket_len; /*!< session ticket length */
uint32_t ticket_lifetime; /*!< ticket lifetime hint */
#endif /* MBEDTLS_SSL_SESSION_TICKETS && MBEDTLS_SSL_CLI_C */
#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
unsigned char mfl_code; /*!< MaxFragmentLength negotiated by peer */
#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */
#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
int encrypt_then_mac; /*!< flag for EtM activation */
#endif
};
/**
* SSL/TLS configuration to be shared between mbedtls_ssl_context structures.
*/
struct mbedtls_ssl_config
{
/* Group items by size (largest first) to minimize padding overhead */
/*
* Pointers
*/
const uint16_t *ciphersuite_list[4]; /*!< allowed ciphersuites per version */
/** Callback to SSL handshake step */
int (*f_step)( mbedtls_ssl_context * );
/** Callback for printing debug output */
void (*f_dbg)(void *, int, const char *, int, const char *);
void *p_dbg; /*!< context for the debug function */
/** Callback for getting (pseudo-)random numbers */
int (*f_rng)(void *, unsigned char *, size_t);
void *p_rng; /*!< context for the RNG function */
/** Callback to retrieve a session from the cache */
int (*f_get_cache)(void *, mbedtls_ssl_session *);
/** Callback to store a session into the cache */
int (*f_set_cache)(void *, const mbedtls_ssl_session *);
void *p_cache; /*!< context for cache callbacks */
#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
/** Callback for setting cert according to SNI extension */
int (*f_sni)(void *, mbedtls_ssl_context *, const unsigned char *, size_t);
void *p_sni; /*!< context for SNI callback */
#endif
#if defined(MBEDTLS_X509_CRT_PARSE_C)
/** Callback to customize X.509 certificate chain verification */
int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *);
void *p_vrfy; /*!< context for X.509 verify calllback */
#endif
#if defined(MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED)
/** Callback to retrieve PSK key from identity */
int (*f_psk)(void *, mbedtls_ssl_context *, const unsigned char *, size_t);
void *p_psk; /*!< context for PSK callback */
#endif
#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) && defined(MBEDTLS_SSL_SRV_C)
/** Callback to create & write a cookie for ClientHello veirifcation */
int (*f_cookie_write)( void *, unsigned char **, unsigned char *,
const unsigned char *, size_t );
/** Callback to verify validity of a ClientHello cookie */
int (*f_cookie_check)( void *, const unsigned char *, size_t,
const unsigned char *, size_t );
void *p_cookie; /*!< context for the cookie callbacks */
#endif
#if defined(MBEDTLS_SSL_SESSION_TICKETS) && defined(MBEDTLS_SSL_SRV_C)
/** Callback to create & write a session ticket */
int (*f_ticket_write)( void *, const mbedtls_ssl_session *,
unsigned char *, const unsigned char *, size_t *, uint32_t * );
/** Callback to parse a session ticket into a session structure */
int (*f_ticket_parse)( void *, mbedtls_ssl_session *, unsigned char *, size_t);
void *p_ticket; /*!< context for the ticket callbacks */
#endif /* MBEDTLS_SSL_SESSION_TICKETS && MBEDTLS_SSL_SRV_C */
#if defined(MBEDTLS_SSL_EXPORT_KEYS)
/** Callback to export key block and master secret */
int (*f_export_keys)( void *, const unsigned char *,
const unsigned char *, size_t, size_t, size_t );
/** Callback to export key block, master secret,
* tls_prf and random bytes. Should replace f_export_keys */
int (*f_export_keys_ext)( void *, const unsigned char *,
const unsigned char *, size_t, size_t, size_t,
const unsigned char[32], const unsigned char[32],
mbedtls_tls_prf_types );
void *p_export_keys; /*!< context for key export callback */
#endif
#if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID)
size_t cid_len; /*!< The length of CIDs for incoming DTLS records. */
#endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID */
#if defined(MBEDTLS_X509_CRT_PARSE_C)
const mbedtls_x509_crt_profile *cert_profile; /*!< verification profile */
mbedtls_ssl_key_cert *key_cert; /*!< own certificate/key pair(s) */
mbedtls_x509_crt *ca_chain; /*!< trusted CAs */
mbedtls_x509_crl *ca_crl; /*!< trusted CAs CRLs */
#if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK)
mbedtls_x509_crt_ca_cb_t f_ca_cb;
void *p_ca_cb;
#endif /* MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK */
#endif /* MBEDTLS_X509_CRT_PARSE_C */
#if defined(MBEDTLS_SSL_ASYNC_PRIVATE)
#if defined(MBEDTLS_X509_CRT_PARSE_C)
mbedtls_ssl_async_sign_t *f_async_sign_start; /*!< start asynchronous signature operation */
mbedtls_ssl_async_decrypt_t *f_async_decrypt_start; /*!< start asynchronous decryption operation */
#endif /* MBEDTLS_X509_CRT_PARSE_C */
mbedtls_ssl_async_resume_t *f_async_resume; /*!< resume asynchronous operation */
mbedtls_ssl_async_cancel_t *f_async_cancel; /*!< cancel asynchronous operation */
void *p_async_config_data; /*!< Configuration data set by mbedtls_ssl_conf_async_private_cb(). */
#endif /* MBEDTLS_SSL_ASYNC_PRIVATE */
#if defined(MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED)
const uint8_t *sig_hashes; /*!< allowed signature hashes */
#endif
#if defined(MBEDTLS_ECP_C)
const mbedtls_ecp_group_id *curve_list; /*!< allowed curves */
#endif
#if defined(MBEDTLS_DHM_C)
mbedtls_mpi dhm_P; /*!< prime modulus for DHM */
mbedtls_mpi dhm_G; /*!< generator for DHM */
#endif
#if defined(MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED)
#if defined(MBEDTLS_USE_PSA_CRYPTO)
psa_key_id_t psk_opaque; /*!< PSA key slot holding opaque PSK. This field
* should only be set via
* mbedtls_ssl_conf_psk_opaque().
* If either no PSK or a raw PSK have been
* configured, this has value \c 0.
*/
#endif /* MBEDTLS_USE_PSA_CRYPTO */
unsigned char *psk; /*!< The raw pre-shared key. This field should
* only be set via mbedtls_ssl_conf_psk().
* If either no PSK or an opaque PSK
* have been configured, this has value NULL. */
size_t psk_len; /*!< The length of the raw pre-shared key.
* This field should only be set via
* mbedtls_ssl_conf_psk().
* Its value is non-zero if and only if
* \c psk is not \c NULL. */
unsigned char *psk_identity; /*!< The PSK identity for PSK negotiation.
* This field should only be set via
* mbedtls_ssl_conf_psk().
* This is set if and only if either
* \c psk or \c psk_opaque are set. */
size_t psk_identity_len;/*!< The length of PSK identity.
* This field should only be set via
* mbedtls_ssl_conf_psk().
* Its value is non-zero if and only if
* \c psk is not \c NULL or \c psk_opaque
* is not \c 0. */
#endif /* MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED */
#if defined(MBEDTLS_SSL_ALPN)
const char **alpn_list; /*!< ordered list of protocols */
#endif
#if defined(MBEDTLS_SSL_DTLS_SRTP)
/*! ordered list of supported srtp profile */
const mbedtls_ssl_srtp_profile *dtls_srtp_profile_list;
/*! number of supported profiles */
size_t dtls_srtp_profile_list_len;
#endif /* MBEDTLS_SSL_DTLS_SRTP */
/*
* Numerical settings (int then char)
*/
uint32_t read_timeout; /*!< timeout for mbedtls_ssl_read (ms) */
#if defined(MBEDTLS_SSL_PROTO_DTLS)
uint32_t hs_timeout_min; /*!< initial value of the handshake
retransmission timeout (ms) */
uint32_t hs_timeout_max; /*!< maximum value of the handshake
retransmission timeout (ms) */
#endif
#if defined(MBEDTLS_SSL_RENEGOTIATION)
int renego_max_records; /*!< grace period for renegotiation */
unsigned char renego_period[8]; /*!< value of the record counters
that triggers renegotiation */
#endif
#if defined(MBEDTLS_SSL_DTLS_BADMAC_LIMIT)
unsigned int badmac_limit; /*!< limit of records with a bad MAC */
#endif
#if defined(MBEDTLS_DHM_C) && defined(MBEDTLS_SSL_CLI_C)
unsigned int dhm_min_bitlen; /*!< min. bit length of the DHM prime */
#endif
unsigned char max_major_ver; /*!< max. major version used */
unsigned char max_minor_ver; /*!< max. minor version used */
unsigned char min_major_ver; /*!< min. major version used */
unsigned char min_minor_ver; /*!< min. minor version used */
/*
* Flags (bitfields)
*/
unsigned int endpoint : 1; /*!< 0: client, 1: server */
unsigned int transport : 1; /*!< stream (TLS) or datagram (DTLS) */
unsigned int authmode : 2; /*!< MBEDTLS_SSL_VERIFY_XXX */
/* needed even with renego disabled for LEGACY_BREAK_HANDSHAKE */
unsigned int allow_legacy_renegotiation : 2 ; /*!< MBEDTLS_LEGACY_XXX */
#if defined(MBEDTLS_ARC4_C)
unsigned int arc4_disabled : 1; /*!< blacklist RC4 ciphersuites? */
#endif
#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
unsigned int mfl_code : 3; /*!< desired fragment length */
#endif
#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
unsigned int encrypt_then_mac : 1 ; /*!< negotiate encrypt-then-mac? */
#endif
#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
unsigned int extended_ms : 1; /*!< negotiate extended master secret? */
#endif
#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY)
unsigned int anti_replay : 1; /*!< detect and prevent replay? */
#endif
#if defined(MBEDTLS_SSL_CBC_RECORD_SPLITTING)
unsigned int cbc_record_splitting : 1; /*!< do cbc record splitting */
#endif
#if defined(MBEDTLS_SSL_RENEGOTIATION)
unsigned int disable_renegotiation : 1; /*!< disable renegotiation? */
#endif
#if defined(MBEDTLS_SSL_SESSION_TICKETS)
unsigned int session_tickets : 1; /*!< use session tickets? */
#endif
#if defined(MBEDTLS_SSL_FALLBACK_SCSV) && defined(MBEDTLS_SSL_CLI_C)
unsigned int fallback : 1; /*!< is this a fallback? */
#endif
#if defined(MBEDTLS_SSL_SRV_C)
unsigned int cert_req_ca_list : 1; /*!< enable sending CA list in
Certificate Request messages? */
#endif
#if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID)
unsigned int ignore_unexpected_cid : 1; /*!< Determines whether DTLS
* record with unexpected CID
* should lead to failure. */
#endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID */
#if defined(MBEDTLS_SSL_DTLS_SRTP)
unsigned int dtls_srtp_mki_support : 1; /* support having mki_value
in the use_srtp extension */
#endif
bool disable_compression;
};
struct mbedtls_ssl_context
{
const mbedtls_ssl_config *conf; /*!< configuration information */
/*
* Miscellaneous
*/
int state; /*!< SSL handshake: current state */
#if defined(MBEDTLS_SSL_RENEGOTIATION)
int renego_status; /*!< Initial, in progress, pending? */
int renego_records_seen; /*!< Records since renego request, or with DTLS,
number of retransmissions of request if
renego_max_records is < 0 */
#endif /* MBEDTLS_SSL_RENEGOTIATION */
int major_ver; /*!< equal to MBEDTLS_SSL_MAJOR_VERSION_3 */
int minor_ver; /*!< either 0 (SSL3) or 1 (TLS1.0) */
#if defined(MBEDTLS_SSL_DTLS_BADMAC_LIMIT)
unsigned badmac_seen; /*!< records with a bad MAC received */
#endif /* MBEDTLS_SSL_DTLS_BADMAC_LIMIT */
#if defined(MBEDTLS_X509_CRT_PARSE_C)
/** Callback to customize X.509 certificate chain verification */
int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *);
void *p_vrfy; /*!< context for X.509 verify callback */
#endif
mbedtls_ssl_send_t *f_send; /*!< Callback for network send */
mbedtls_ssl_recv_t *f_recv; /*!< Callback for network receive */
mbedtls_ssl_recv_timeout_t *f_recv_timeout;
/*!< Callback for network receive with timeout */
void *p_bio; /*!< context for I/O operations */
/*
* Session layer
*/
mbedtls_ssl_session *session_in; /*!< current session data (in) */
mbedtls_ssl_session *session_out; /*!< current session data (out) */
mbedtls_ssl_session *session; /*!< negotiated session data */
mbedtls_ssl_session *session_negotiate; /*!< session data in negotiation */
mbedtls_ssl_handshake_params *handshake; /*!< params required only during
the handshake process */
const mbedtls_ecp_curve_info *curve;
/*
* Record layer transformations
*/
mbedtls_ssl_transform *transform_in; /*!< current transform params (in) */
mbedtls_ssl_transform *transform_out; /*!< current transform params (in) */
mbedtls_ssl_transform *transform; /*!< negotiated transform params */
mbedtls_ssl_transform *transform_negotiate; /*!< transform params in negotiation */
/*
* Timers
*/
void *p_timer; /*!< context for the timer callbacks */
mbedtls_ssl_set_timer_t *f_set_timer; /*!< set timer callback */
mbedtls_ssl_get_timer_t *f_get_timer; /*!< get timer callback */
/*
* Record layer (incoming data)
*/
unsigned char *in_buf; /*!< input buffer */
unsigned char *in_ctr; /*!< 64-bit incoming message counter
TLS: maintained by us
DTLS: read from peer */
unsigned char *in_hdr; /*!< start of record header */
#if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID)
unsigned char *in_cid; /*!< The start of the CID;
* (the end is marked by in_len). */
#endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID */
unsigned char *in_len; /*!< two-bytes message length field */
unsigned char *in_iv; /*!< ivlen-byte IV */
unsigned char *in_msg; /*!< message contents (in_iv+ivlen) */
unsigned char *in_offt; /*!< read offset in application data */
int in_msgtype; /*!< record header: message type */
size_t in_msglen; /*!< record header: message length */
size_t in_left; /*!< amount of data read so far */
#if defined(MBEDTLS_SSL_VARIABLE_BUFFER_LENGTH)
size_t in_buf_len; /*!< length of input buffer */
#endif
#if defined(MBEDTLS_SSL_PROTO_DTLS)
uint16_t in_epoch; /*!< DTLS epoch for incoming records */
size_t next_record_offset; /*!< offset of the next record in datagram
(equal to in_left if none) */
#endif /* MBEDTLS_SSL_PROTO_DTLS */
#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY)
uint64_t in_window_top; /*!< last validated record seq_num */
uint64_t in_window; /*!< bitmask for replay detection */
#endif /* MBEDTLS_SSL_DTLS_ANTI_REPLAY */
size_t in_hslen; /*!< current handshake message length,
including the handshake header */
int nb_zero; /*!< # of 0-length encrypted messages */
int keep_current_message; /*!< drop or reuse current message
on next call to record layer? */
#if defined(MBEDTLS_SSL_PROTO_DTLS)
uint8_t disable_datagram_packing; /*!< Disable packing multiple records
* within a single datagram. */
#endif /* MBEDTLS_SSL_PROTO_DTLS */
/*
* Record layer (outgoing data)
*/
unsigned char *out_buf; /*!< output buffer */
unsigned char *out_ctr; /*!< 64-bit outgoing message counter */
unsigned char *out_hdr; /*!< start of record header */
#if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID)
unsigned char *out_cid; /*!< The start of the CID;
* (the end is marked by in_len). */
#endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID */
unsigned char *out_len; /*!< two-bytes message length field */
unsigned char *out_iv; /*!< ivlen-byte IV */
unsigned char *out_msg; /*!< message contents (out_iv+ivlen) */
int out_msgtype; /*!< record header: message type */
size_t out_msglen; /*!< record header: message length */
size_t out_left; /*!< amount of data not yet written */
#if defined(MBEDTLS_SSL_VARIABLE_BUFFER_LENGTH)
size_t out_buf_len; /*!< length of output buffer */
#endif
uint8_t fatal_alert;
unsigned char cur_out_ctr[8]; /*!< Outgoing record sequence number. */
#if defined(MBEDTLS_SSL_PROTO_DTLS)
uint16_t mtu; /*!< path mtu, used to fragment outgoing messages */
#endif /* MBEDTLS_SSL_PROTO_DTLS */
#if defined(MBEDTLS_ZLIB_SUPPORT)
unsigned char *compress_buf; /*!< zlib data buffer */
#endif /* MBEDTLS_ZLIB_SUPPORT */
#if defined(MBEDTLS_SSL_CBC_RECORD_SPLITTING)
signed char split_done; /*!< current record already splitted? */
#endif /* MBEDTLS_SSL_CBC_RECORD_SPLITTING */
/*
* PKI layer
*/
int client_auth; /*!< flag for client auth. */
/*
* User settings
*/
#if defined(MBEDTLS_X509_CRT_PARSE_C)
char *hostname; /*!< expected peer CN for verification
(and SNI if available) */
#endif /* MBEDTLS_X509_CRT_PARSE_C */
#if defined(MBEDTLS_SSL_ALPN)
const char *alpn_chosen; /*!< negotiated protocol */
#endif /* MBEDTLS_SSL_ALPN */
#if defined(MBEDTLS_SSL_DTLS_SRTP)
/*
* use_srtp extension
*/
mbedtls_dtls_srtp_info dtls_srtp_info;
#endif /* MBEDTLS_SSL_DTLS_SRTP */
/*
* Information for DTLS hello verify
*/
#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) && defined(MBEDTLS_SSL_SRV_C)
unsigned char *cli_id; /*!< transport-level ID of the client */
size_t cli_id_len; /*!< length of cli_id */
#endif /* MBEDTLS_SSL_DTLS_HELLO_VERIFY && MBEDTLS_SSL_SRV_C */
/*
* Secure renegotiation
*/
/* needed to know when to send extension on server */
int secure_renegotiation; /*!< does peer support legacy or
secure renegotiation */
#if defined(MBEDTLS_SSL_RENEGOTIATION)
size_t verify_data_len; /*!< length of verify data stored */
char own_verify_data[MBEDTLS_SSL_VERIFY_DATA_MAX_LEN]; /*!< previous handshake verify data */
char peer_verify_data[MBEDTLS_SSL_VERIFY_DATA_MAX_LEN]; /*!< previous handshake verify data */
#endif /* MBEDTLS_SSL_RENEGOTIATION */
#if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID)
/* CID configuration to use in subsequent handshakes. */
/*! The next incoming CID, chosen by the user and applying to
* all subsequent handshakes. This may be different from the
* CID currently used in case the user has re-configured the CID
* after an initial handshake. */
unsigned char own_cid[ MBEDTLS_SSL_CID_IN_LEN_MAX ];
uint8_t own_cid_len; /*!< The length of \c own_cid. */
uint8_t negotiate_cid; /*!< This indicates whether the CID extension should
* be negotiated in the next handshake or not.
* Possible values are #MBEDTLS_SSL_CID_ENABLED
* and #MBEDTLS_SSL_CID_DISABLED. */
#endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID */
uint16_t client_ciphers[16]; /* [jart] clarifies MBEDTLS_ERR_SSL_NO_USABLE_CIPHERSUITE */
};
/**
* \brief Callback type: generate and write session ticket
*
* \note This describes what a callback implementation should do.
* This callback should generate an encrypted and
* authenticated ticket for the session and write it to the
* output buffer. Here, ticket means the opaque ticket part
* of the NewSessionTicket structure of RFC 5077.
*
* \param p_ticket Context for the callback
* \param session SSL session to be written in the ticket
* \param start Start of the output buffer
* \param end End of the output buffer
* \param tlen On exit, holds the length written
* \param lifetime On exit, holds the lifetime of the ticket in seconds
*
* \return 0 if successful, or
* a specific MBEDTLS_ERR_XXX code.
*/
typedef int mbedtls_ssl_ticket_write_t( void *p_ticket,
const mbedtls_ssl_session *session,
unsigned char *start,
const unsigned char *end,
size_t *tlen,
uint32_t *lifetime );
/**
* \brief Callback type: Export key block and master secret
*
* \note This is required for certain uses of TLS, e.g. EAP-TLS
* (RFC 5216) and Thread. The key pointers are ephemeral and
* therefore must not be stored. The master secret and keys
* should not be used directly except as an input to a key
* derivation function.
*
* \param p_expkey Context for the callback
* \param ms Pointer to master secret (fixed length: 48 bytes)
* \param kb Pointer to key block, see RFC 5246 section 6.3
* (variable length: 2 * maclen + 2 * keylen + 2 * ivlen).
* \param maclen MAC length
* \param keylen Key length
* \param ivlen IV length
*
* \return 0 if successful, or
* a specific MBEDTLS_ERR_XXX code.
*/
typedef int mbedtls_ssl_export_keys_t( void *p_expkey,
const unsigned char *ms,
const unsigned char *kb,
size_t maclen,
size_t keylen,
size_t ivlen );
/**
* \brief Callback type: Export key block, master secret,
* handshake randbytes and the tls_prf function
* used to derive keys.
*
* \note This is required for certain uses of TLS, e.g. EAP-TLS
* (RFC 5216) and Thread. The key pointers are ephemeral and
* therefore must not be stored. The master secret and keys
* should not be used directly except as an input to a key
* derivation function.
*
* \param p_expkey Context for the callback.
* \param ms Pointer to master secret (fixed length: 48 bytes).
* \param kb Pointer to key block, see RFC 5246 section 6.3.
* (variable length: 2 * maclen + 2 * keylen + 2 * ivlen).
* \param maclen MAC length.
* \param keylen Key length.
* \param ivlen IV length.
* \param client_random The client random bytes.
* \param server_random The server random bytes.
* \param tls_prf_type The tls_prf enum type.
*
* \return 0 if successful, or
* a specific MBEDTLS_ERR_XXX code.
*/
typedef int mbedtls_ssl_export_keys_ext_t( void *p_expkey,
const unsigned char *ms,
const unsigned char *kb,
size_t maclen,
size_t keylen,
size_t ivlen,
const unsigned char client_random[32],
const unsigned char server_random[32],
mbedtls_tls_prf_types tls_prf_type );
/**
* \brief Callback type: parse and load session ticket
*
* \note This describes what a callback implementation should do.
* This callback should parse a session ticket as generated
* by the corresponding mbedtls_ssl_ticket_write_t function,
* and, if the ticket is authentic and valid, load the
* session.
*
* \note The implementation is allowed to modify the first len
* bytes of the input buffer, eg to use it as a temporary
* area for the decrypted ticket contents.
*
* \param p_ticket Context for the callback
* \param session SSL session to be loaded
* \param buf Start of the buffer containing the ticket
* \param len Length of the ticket.
*
* \return 0 if successful, or
* MBEDTLS_ERR_SSL_INVALID_MAC if not authentic, or
* MBEDTLS_ERR_SSL_SESSION_TICKET_EXPIRED if expired, or
* any other non-zero code for other failures.
*/
typedef int mbedtls_ssl_ticket_parse_t( void *p_ticket,
mbedtls_ssl_session *session,
unsigned char *buf,
size_t len );
/**
* \brief Callback type: generate a cookie
*
* \param ctx Context for the callback
* \param p Buffer to write to,
* must be updated to point right after the cookie
* \param end Pointer to one past the end of the output buffer
* \param info Client ID info that was passed to
* \c mbedtls_ssl_set_client_transport_id()
* \param ilen Length of info in bytes
*
* \return The callback must return 0 on success,
* or a negative error code.
*/
typedef int mbedtls_ssl_cookie_write_t( void *ctx,
unsigned char **p, unsigned char *end,
const unsigned char *info, size_t ilen );
/**
* \brief Callback type: verify a cookie
*
* \param ctx Context for the callback
* \param cookie Cookie to verify
* \param clen Length of cookie
* \param info Client ID info that was passed to
* \c mbedtls_ssl_set_client_transport_id()
* \param ilen Length of info in bytes
*
* \return The callback must return 0 if cookie is valid,
* or a negative error code.
*/
typedef int mbedtls_ssl_cookie_check_t( void *ctx,
const unsigned char *cookie, size_t clen,
const unsigned char *info, size_t ilen );
const char *mbedtls_sig_alg_name(int);
const char *mbedtls_ssl_get_alpn_protocol( const mbedtls_ssl_context * );
const char *mbedtls_ssl_get_ciphersuite( const mbedtls_ssl_context * );
const char *mbedtls_ssl_get_ciphersuite_name( const int );
const char *mbedtls_ssl_get_srtp_profile_as_string( mbedtls_ssl_srtp_profile );
const char *mbedtls_ssl_get_version( const mbedtls_ssl_context * );
const mbedtls_ssl_session *mbedtls_ssl_get_session_pointer( const mbedtls_ssl_context * );
const mbedtls_x509_crt *mbedtls_ssl_get_peer_cert( const mbedtls_ssl_context * );
int mbedtls_ssl_check_pending( const mbedtls_ssl_context * );
int mbedtls_ssl_check_record( mbedtls_ssl_context const *, unsigned char *, size_t );
int mbedtls_ssl_close_notify( mbedtls_ssl_context * );
int mbedtls_ssl_conf_alpn_protocols( mbedtls_ssl_config *, const char ** );
int mbedtls_ssl_conf_cid( mbedtls_ssl_config *, size_t, int );
int mbedtls_ssl_conf_dh_param_bin( mbedtls_ssl_config *, const unsigned char *, size_t, const unsigned char *, size_t );
int mbedtls_ssl_conf_dh_param_ctx( mbedtls_ssl_config *, mbedtls_dhm_context * );
int mbedtls_ssl_conf_dtls_srtp_protection_profiles( mbedtls_ssl_config *, const mbedtls_ssl_srtp_profile * );
int mbedtls_ssl_conf_max_frag_len( mbedtls_ssl_config *, unsigned char );
int mbedtls_ssl_conf_own_cert( mbedtls_ssl_config *, mbedtls_x509_crt *, mbedtls_pk_context * );
int mbedtls_ssl_conf_psk( mbedtls_ssl_config *, const void *, size_t, const void *, size_t );
int mbedtls_ssl_context_load( mbedtls_ssl_context *, const unsigned char *, size_t );
int mbedtls_ssl_context_save( mbedtls_ssl_context *, unsigned char *, size_t, size_t * );
int mbedtls_ssl_get_ciphersuite_id( const char * );
int mbedtls_ssl_get_max_out_record_payload( const mbedtls_ssl_context * );
int mbedtls_ssl_get_peer_cid( mbedtls_ssl_context *, int *, unsigned char[ MBEDTLS_SSL_CID_OUT_LEN_MAX ], size_t * );
int mbedtls_ssl_get_record_expansion( const mbedtls_ssl_context * );
int mbedtls_ssl_get_session( const mbedtls_ssl_context *, mbedtls_ssl_session * );
int mbedtls_ssl_handshake( mbedtls_ssl_context * );
int mbedtls_ssl_handshake_client_step( mbedtls_ssl_context * );
int mbedtls_ssl_handshake_server_step( mbedtls_ssl_context * );
int mbedtls_ssl_handshake_step( mbedtls_ssl_context * );
int mbedtls_ssl_read( mbedtls_ssl_context *, void *, size_t );
int mbedtls_ssl_renegotiate( mbedtls_ssl_context * );
int mbedtls_ssl_send_alert_message( mbedtls_ssl_context *, unsigned char, unsigned char );
int mbedtls_ssl_session_load( mbedtls_ssl_session *, const unsigned char *, size_t );
int mbedtls_ssl_session_reset( mbedtls_ssl_context * );
int mbedtls_ssl_session_save( const mbedtls_ssl_session *, unsigned char *, size_t, size_t * );
int mbedtls_ssl_set_cid( mbedtls_ssl_context *, int, unsigned char const *, size_t );
int mbedtls_ssl_set_client_transport_id( mbedtls_ssl_context *, const unsigned char *, size_t );
int mbedtls_ssl_set_hostname( mbedtls_ssl_context *, const char * );
int mbedtls_ssl_set_hs_ecjpake_password( mbedtls_ssl_context *, const unsigned char *, size_t );
int mbedtls_ssl_set_hs_own_cert( mbedtls_ssl_context *, mbedtls_x509_crt *, mbedtls_pk_context * );
int mbedtls_ssl_set_hs_psk( mbedtls_ssl_context *, const void *, size_t );
int mbedtls_ssl_set_session( mbedtls_ssl_context *, const mbedtls_ssl_session * );
int mbedtls_ssl_setup( mbedtls_ssl_context *, const mbedtls_ssl_config * );
int mbedtls_ssl_tls_prf( const mbedtls_tls_prf_types , const unsigned char *, size_t, const char *, const unsigned char *, size_t, unsigned char *, size_t );
int mbedtls_ssl_write( mbedtls_ssl_context *, const void *, size_t );
size_t mbedtls_ssl_get_bytes_avail( const mbedtls_ssl_context * );
size_t mbedtls_ssl_get_input_max_frag_len( const mbedtls_ssl_context * );
size_t mbedtls_ssl_get_output_max_frag_len( const mbedtls_ssl_context * );
uint32_t mbedtls_ssl_get_verify_result( const mbedtls_ssl_context * );
void *mbedtls_ssl_conf_get_async_config_data( const mbedtls_ssl_config * );
void *mbedtls_ssl_get_async_operation_data( const mbedtls_ssl_context * );
void mbedtls_ssl_conf_async_private_cb( mbedtls_ssl_config *, mbedtls_ssl_async_sign_t *, mbedtls_ssl_async_decrypt_t *, mbedtls_ssl_async_resume_t *, mbedtls_ssl_async_cancel_t *, void * );
void mbedtls_ssl_conf_authmode( mbedtls_ssl_config *, int );
void mbedtls_ssl_conf_ca_cb( mbedtls_ssl_config *, mbedtls_x509_crt_ca_cb_t, void * );
void mbedtls_ssl_conf_ca_chain( mbedtls_ssl_config *, mbedtls_x509_crt *, mbedtls_x509_crl * );
void mbedtls_ssl_conf_cbc_record_splitting( mbedtls_ssl_config *, char );
void mbedtls_ssl_conf_cert_profile( mbedtls_ssl_config *, const mbedtls_x509_crt_profile * );
void mbedtls_ssl_conf_cert_req_ca_list( mbedtls_ssl_config *, char );
void mbedtls_ssl_conf_ciphersuites( mbedtls_ssl_config *, const uint16_t * );
void mbedtls_ssl_conf_ciphersuites_for_version( mbedtls_ssl_config *, const uint16_t *, int, int );
void mbedtls_ssl_conf_curves( mbedtls_ssl_config *, const mbedtls_ecp_group_id * );
void mbedtls_ssl_conf_dbg( mbedtls_ssl_config *, void (*)(void *, int, const char *, int, const char *), void * );
void mbedtls_ssl_conf_dhm_min_bitlen( mbedtls_ssl_config *, unsigned int );
void mbedtls_ssl_conf_dtls_anti_replay( mbedtls_ssl_config *, char );
void mbedtls_ssl_conf_dtls_badmac_limit( mbedtls_ssl_config *, unsigned );
void mbedtls_ssl_conf_dtls_cookies( mbedtls_ssl_config *, mbedtls_ssl_cookie_write_t *, mbedtls_ssl_cookie_check_t *, void * );
void mbedtls_ssl_conf_encrypt_then_mac( mbedtls_ssl_config *, char );
void mbedtls_ssl_conf_endpoint( mbedtls_ssl_config *, int );
void mbedtls_ssl_conf_export_keys_cb( mbedtls_ssl_config *, mbedtls_ssl_export_keys_t *, void * );
void mbedtls_ssl_conf_export_keys_ext_cb( mbedtls_ssl_config *, mbedtls_ssl_export_keys_ext_t *, void * );
void mbedtls_ssl_conf_extended_master_secret( mbedtls_ssl_config *, char );
void mbedtls_ssl_conf_fallback( mbedtls_ssl_config *, char );
void mbedtls_ssl_conf_handshake_timeout( mbedtls_ssl_config *, uint32_t, uint32_t );
void mbedtls_ssl_conf_legacy_renegotiation( mbedtls_ssl_config *, int );
void mbedtls_ssl_conf_max_version( mbedtls_ssl_config *, int, int );
void mbedtls_ssl_conf_min_version( mbedtls_ssl_config *, int, int );
void mbedtls_ssl_conf_psk_cb( mbedtls_ssl_config *, int (*)(void *, mbedtls_ssl_context *, const unsigned char *, size_t), void * );
void mbedtls_ssl_conf_read_timeout( mbedtls_ssl_config *, uint32_t );
void mbedtls_ssl_conf_renegotiation( mbedtls_ssl_config *, int );
void mbedtls_ssl_conf_renegotiation_enforced( mbedtls_ssl_config *, int );
void mbedtls_ssl_conf_renegotiation_period( mbedtls_ssl_config *, const unsigned char[8] );
void mbedtls_ssl_conf_rng( mbedtls_ssl_config *, int (*)(void *, unsigned char *, size_t), void * );
void mbedtls_ssl_conf_session_cache( mbedtls_ssl_config *, void *, int (*)(void *, mbedtls_ssl_session *), int (*)(void *, const mbedtls_ssl_session *) );
void mbedtls_ssl_conf_session_tickets( mbedtls_ssl_config *, int );
void mbedtls_ssl_conf_session_tickets_cb( mbedtls_ssl_config *, mbedtls_ssl_ticket_write_t *, mbedtls_ssl_ticket_parse_t *, void * );
void mbedtls_ssl_conf_sig_hashes( mbedtls_ssl_config *, const uint8_t * );
void mbedtls_ssl_conf_sni( mbedtls_ssl_config *, int (*)(void *, mbedtls_ssl_context *, const unsigned char *, size_t), void *);
void mbedtls_ssl_conf_srtp_mki_value_supported( mbedtls_ssl_config *, int );
void mbedtls_ssl_conf_transport( mbedtls_ssl_config *, int );
void mbedtls_ssl_conf_verify( mbedtls_ssl_config *, int (*)(void *, mbedtls_x509_crt *, int, uint32_t *), void * );
void mbedtls_ssl_config_free( mbedtls_ssl_config * );
void mbedtls_ssl_config_init( mbedtls_ssl_config * );
void mbedtls_ssl_free( mbedtls_ssl_context * );
void mbedtls_ssl_get_dtls_srtp_negotiation_result( const mbedtls_ssl_context *, mbedtls_dtls_srtp_info * );
void mbedtls_ssl_init( mbedtls_ssl_context * );
void mbedtls_ssl_key_cert_free( mbedtls_ssl_key_cert * );
void mbedtls_ssl_session_free( mbedtls_ssl_session * );
void mbedtls_ssl_session_init( mbedtls_ssl_session * );
void mbedtls_ssl_set_async_operation_data( mbedtls_ssl_context *, void * );
void mbedtls_ssl_set_bio( mbedtls_ssl_context *, void *, mbedtls_ssl_send_t *, mbedtls_ssl_recv_t *, mbedtls_ssl_recv_timeout_t * );
void mbedtls_ssl_set_datagram_packing( mbedtls_ssl_context *, unsigned );
void mbedtls_ssl_set_hs_authmode( mbedtls_ssl_context *, int );
void mbedtls_ssl_set_hs_ca_chain( mbedtls_ssl_context *, mbedtls_x509_crt *, mbedtls_x509_crl * );
void mbedtls_ssl_set_mtu( mbedtls_ssl_context *, uint16_t );
void mbedtls_ssl_set_timer_cb( mbedtls_ssl_context *, void *, mbedtls_ssl_set_timer_t *, mbedtls_ssl_get_timer_t * );
void mbedtls_ssl_set_verify( mbedtls_ssl_context *, int (*)(void *, mbedtls_x509_crt *, int, uint32_t *), void * );
/**
* \brief Load reasonnable default SSL configuration values.
* (You need to call mbedtls_ssl_config_init() first.)
*
* \param conf SSL configuration context
* \param endpoint MBEDTLS_SSL_IS_CLIENT or MBEDTLS_SSL_IS_SERVER
* \param transport MBEDTLS_SSL_TRANSPORT_STREAM for TLS, or
* MBEDTLS_SSL_TRANSPORT_DATAGRAM for DTLS
* \param preset a MBEDTLS_SSL_PRESET_XXX value
*
* \note See \c mbedtls_ssl_conf_transport() for notes on DTLS.
*
* \return 0 if successful, or
* MBEDTLS_ERR_XXX_ALLOC_FAILED on memory allocation error.
*/
forceinline int mbedtls_ssl_config_defaults( mbedtls_ssl_config *conf,
int endpoint, int transport,
int preset ) {
int mbedtls_ssl_config_defaults_impl(mbedtls_ssl_config *, int, int, int,
int (*)(mbedtls_ssl_context *));
switch (endpoint) {
#if defined(MBEDTLS_SSL_CLI_C)
case MBEDTLS_SSL_IS_CLIENT:
return mbedtls_ssl_config_defaults_impl(
conf, endpoint, transport, preset,
mbedtls_ssl_handshake_client_step);
#endif
#if defined(MBEDTLS_SSL_SRV_C)
case MBEDTLS_SSL_IS_SERVER:
return mbedtls_ssl_config_defaults_impl(
conf, endpoint, transport, preset,
mbedtls_ssl_handshake_server_step);
#endif
default:
return MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE;
}
}
const char *GetSslStateName(mbedtls_ssl_states);
COSMOPOLITAN_C_END_
#endif /* COSMOPOLITAN_THIRD_PARTY_MBEDTLS_SSL_H_ */
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