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add persistent session cache, ssn9

This commit is contained in:
toddouska 2013-04-24 11:10:23 -07:00
parent 65913b0d6c
commit 956ac08cab
5 changed files with 142 additions and 0 deletions
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14
configure.ac
View File

@ -250,6 +250,19 @@ then
fi
# Persistent session cache
AC_ARG_ENABLE([savesession],
[ --enable-savesession Enable persistent session cache (default: disabled)],
[ ENABLED_SAVESESSION=$enableval ],
[ ENABLED_SAVESESSION=no ]
)
if test "$ENABLED_SAVESESSION" = "yes"
then
AM_CFLAGS="$AM_CFLAGS -DPERSIST_SESSION_CACHE"
fi
# SNIFFER
AC_ARG_ENABLE([sniffer],
[AS_HELP_STRING([--enable-sniffer],[ Enable CyaSSL sniffer support (default: disabled) ])],[
@ -1379,6 +1392,7 @@ echo " * Old TLS Versions: $ENABLED_OLD_TLS"
echo " * OCSP: $ENABLED_OCSP"
echo " * CRL: $ENABLED_CRL"
echo " * CRL-MONITOR: $ENABLED_CRL_MONITOR"
echo " * Persistent session cache: $ENABLED_SAVESESSION"
echo " * NTRU: $ENABLED_NTRU"
echo " * valgrind unit tests: $ENABLED_VALGRIND"
echo " * LIBZ: $ENABLED_LIBZ"

1
cyassl/error.h
View File

@ -111,6 +111,7 @@ enum CyaSSL_ErrorCodes {
RECV_OVERFLOW_E = -276, /* RXCB returned more than rqed */
GEN_COOKIE_E = -277, /* Generate Cookie Error */
NO_PEER_VERIFY = -278, /* Need peer cert verify Error */
FWRITE_ERROR = -279, /* fwrite problem */
/* add strings to SetErrorString !!!!! */
/* begin negotiation parameter errors */

2
cyassl/ssl.h
View File

@ -233,6 +233,8 @@ CYASSL_API int CyaSSL_pending(CYASSL*);
CYASSL_API void CyaSSL_load_error_strings(void);
CYASSL_API int CyaSSL_library_init(void);
CYASSL_API long CyaSSL_CTX_set_session_cache_mode(CYASSL_CTX*, long);
CYASSL_API int CyaSSL_save_session_cache(const char *fname);
CYASSL_API int CyaSSL_restore_session_cache(const char *fname);
/* only supports full name from cipher_name[] delimited by : */
CYASSL_API int CyaSSL_CTX_set_cipher_list(CYASSL_CTX*, const char*);

4
src/internal.c
View File

@ -5774,6 +5774,10 @@ void SetErrorString(int error, char* str)
XSTRNCPY(str, "Need peer certificate verify Error", max);
break;
case FWRITE_ERROR:
XSTRNCPY(str, "fwrite Error", max);
break;
default :
XSTRNCPY(str, "unknown error number", max);
}

121
src/ssl.c
View File

@ -1617,6 +1617,7 @@ int CyaSSL_CertManagerVerifyBuffer(CYASSL_CERT_MANAGER* cm, const byte* buff,
#define XFTELL vf_tell
#define XREWIND vf_rewind
#define XFREAD(BUF, SZ, AMT, FD) vf_read(FD, BUF, SZ*AMT)
#define XFWRITE(BUF, SZ, AMT, FD) vf_write(FD, BUF, SZ*AMT)
#define XFCLOSE vf_close
#define XSEEK_END VSEEK_END
#define XBADFILE -1
@ -1628,6 +1629,7 @@ int CyaSSL_CertManagerVerifyBuffer(CYASSL_CERT_MANAGER* cm, const byte* buff,
#define XFTELL(F) (F)->len
#define XREWIND(F) (void)F
#define XFREAD(BUF, SZ, AMT, F) fs_read(F, (char*)BUF, SZ*AMT)
#define XFWRITE(BUF, SZ, AMT, F) fs_write(F, (char*)BUF, SZ*AMT)
#define XFCLOSE fs_close
#define XSEEK_END 0
#define XBADFILE NULL
@ -1638,6 +1640,7 @@ int CyaSSL_CertManagerVerifyBuffer(CYASSL_CERT_MANAGER* cm, const byte* buff,
#define XFTELL ftell
#define XREWIND(F) fseek(F, 0, IO_SEEK_SET)
#define XFREAD fread
#define XFWRITE fwrite
#define XFCLOSE fclose
#define XSEEK_END IO_SEEK_END
#define XBADFILE NULL
@ -1649,6 +1652,7 @@ int CyaSSL_CertManagerVerifyBuffer(CYASSL_CERT_MANAGER* cm, const byte* buff,
#define XFTELL fs_ftell
#define XREWIND fs_rewind
#define XFREAD fs_fread
#define XFWRITE fs_fwrite
#define XFCLOSE fs_fclose
#define XSEEK_END FS_SEEK_END
#define XBADFILE NULL
@ -1660,6 +1664,7 @@ int CyaSSL_CertManagerVerifyBuffer(CYASSL_CERT_MANAGER* cm, const byte* buff,
#define XFTELL ftell
#define XREWIND rewind
#define XFREAD fread
#define XFWRITE fwrite
#define XFCLOSE fclose
#define XSEEK_END SEEK_END
#define XBADFILE NULL
@ -2525,6 +2530,122 @@ int CyaSSL_set_session(CYASSL* ssl, CYASSL_SESSION* session)
return SSL_FAILURE;
}
#if !defined(NO_FILESYSTEM) && defined(PERSIST_SESSION_CACHE)
/* Session Cache Header information */
typedef struct {
int rows; /* session rows */
int columns; /* session columns */
int sessionSz; /* sizeof CYASSL_SESSION */
} cache_header_t;
/* Persist session cache to file */
int CyaSSL_save_session_cache(const char *fname)
{
XFILE file;
int ret;
int rc = SSL_SUCCESS;
int i;
cache_header_t cache_header;
CYASSL_ENTER("CyaSSL_save_session_cache");
file = XFOPEN(fname, "rb");
if (file == XBADFILE) {
CYASSL_MSG("Couldn't open session cache save file");
return SSL_BAD_FILE;
}
cache_header.rows = SESSION_ROWS;
cache_header.columns = SESSIONS_PER_ROW;
cache_header.sessionSz = (int)sizeof(CYASSL_SESSION);
ret = (int)XFWRITE(&cache_header, sizeof cache_header, 1, file);
if (ret != 1) {
CYASSL_MSG("Session cache header file write failed");
XFCLOSE(file);
return FWRITE_ERROR;
}
if (LockMutex(&session_mutex) != 0) {
CYASSL_MSG("Session cache mutex lock failed");
XFCLOSE(file);
return BAD_MUTEX_ERROR;
}
for (i = 0; i < cache_header.rows; ++i) {
ret = (int)XFWRITE(SessionCache + i, sizeof(SessionRow), 1, file);
if (ret != 1) {
CYASSL_MSG("Session cache member file write failed");
rc = FWRITE_ERROR;
break;
}
}
UnLockMutex(&session_mutex);
XFCLOSE(file);
CYASSL_LEAVE("CyaSSL_save_session_cache", rc);
return rc;
}
/* Restore the persistant session cache from file */
int CyaSSL_restore_session_cache(const char *fname)
{
XFILE file;
int rc = SSL_SUCCESS;
int ret;
int i;
cache_header_t cache_header;
CYASSL_ENTER("CyaSSL_restore_session_cache");
file = XFOPEN(fname, "w+b");
if (file == XBADFILE) {
CYASSL_MSG("Couldn't open session cache save file");
return SSL_BAD_FILE;
}
ret = (int)XFREAD(&cache_header, sizeof cache_header, 1, file);
if (ret != 1 ||
cache_header.rows != SESSION_ROWS ||
cache_header.columns != SESSIONS_PER_ROW ||
cache_header.sessionSz != (int)sizeof(CYASSL_SESSION)) {
CYASSL_MSG("Session cache header file read/match failed");
XFCLOSE(file);
return FREAD_ERROR;
}
if (LockMutex(&session_mutex) != 0) {
CYASSL_MSG("Session cache mutex lock failed");
XFCLOSE(file);
return BAD_MUTEX_ERROR;
}
for (i = 0; i < cache_header.rows; ++i) {
ret = (int)XFREAD(SessionCache + i, sizeof(SessionRow), 1, file);
if (ret != 1) {
CYASSL_MSG("Session cache member file read failed");
rc = FREAD_ERROR;
break;
}
}
UnLockMutex(&session_mutex);
if (rc != SSL_SUCCESS)
XMEMSET(SessionCache, 0, sizeof SessionCache);
XFCLOSE(file);
CYASSL_LEAVE("CyaSSL_restore_session_cache", rc);
return rc;
}
#endif /* !NO_FILESYSTEM && PERSIST_SESSION_CACHE */
#endif /* NO_SESSION_CACHE */