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Add flags field to SSL_SESSION.

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Add a "flags" field to SSL_SESSION. This will contain various flags
such as encrypt-then-mac and extended master secret support.
Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
This commit is contained in:
Dr. Stephen Henson 2015-01-23 02:29:50 +00:00
parent 52e028b9de
commit 6f152a15d4
2 changed files with 28 additions and 0 deletions
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23
ssl/ssl_asn1.c
View File

@ -115,6 +115,7 @@ typedef struct ssl_session_asn1_st {
#ifndef OPENSSL_NO_SRP
ASN1_OCTET_STRING srp_username;
#endif /* OPENSSL_NO_SRP */
ASN1_INTEGER flags;
} SSL_SESSION_ASN1;
int i2d_SSL_SESSION(SSL_SESSION *in, unsigned char **pp)
@ -134,6 +135,8 @@ int i2d_SSL_SESSION(SSL_SESSION *in, unsigned char **pp)
#ifndef OPENSSL_NO_SRP
int v12 = 0;
#endif
unsigned char fbuf[LSIZE2];
int v13 = 0;
long l;
SSL_SESSION_ASN1 a;
M_ASN1_I2D_vars(in);
@ -256,6 +259,13 @@ int i2d_SSL_SESSION(SSL_SESSION *in, unsigned char **pp)
}
#endif /* OPENSSL_NO_SRP */
if (in->flags) {
a.flags.length = LSIZE2;
a.flags.type = V_ASN1_INTEGER;
a.flags.data = fbuf;
ASN1_INTEGER_set(&a.flags, in->flags);
}
M_ASN1_I2D_len(&(a.version), i2d_ASN1_INTEGER);
M_ASN1_I2D_len(&(a.ssl_version), i2d_ASN1_INTEGER);
M_ASN1_I2D_len(&(a.cipher), i2d_ASN1_OCTET_STRING);
@ -304,6 +314,8 @@ int i2d_SSL_SESSION(SSL_SESSION *in, unsigned char **pp)
M_ASN1_I2D_len_EXP_opt(&(a.srp_username), i2d_ASN1_OCTET_STRING, 12,
v12);
#endif /* OPENSSL_NO_SRP */
if (in->flags)
M_ASN1_I2D_len_EXP_opt(&(a.flags), i2d_ASN1_INTEGER, 13, v13);
M_ASN1_I2D_seq_total();
@ -356,6 +368,8 @@ int i2d_SSL_SESSION(SSL_SESSION *in, unsigned char **pp)
M_ASN1_I2D_put_EXP_opt(&(a.srp_username), i2d_ASN1_OCTET_STRING, 12,
v12);
#endif /* OPENSSL_NO_SRP */
if (in->flags)
M_ASN1_I2D_put_EXP_opt(&a.flags, i2d_ASN1_INTEGER, 13, v13);
M_ASN1_I2D_finish();
}
@ -593,6 +607,15 @@ SSL_SESSION *d2i_SSL_SESSION(SSL_SESSION **a, const unsigned char **pp,
} else
ret->srp_username = NULL;
#endif /* OPENSSL_NO_SRP */
ai.length = 0;
M_ASN1_D2I_get_EXP_opt(aip, d2i_ASN1_INTEGER, 13);
if (ai.data != NULL) {
ret->flags = ASN1_INTEGER_get(aip);
OPENSSL_free(ai.data);
ai.data = NULL;
ai.length = 0;
} else
ret->flags = 0;
M_ASN1_D2I_Finish(a, SSL_SESSION_free, SSL_F_D2I_SSL_SESSION);
}

5
ssl/ssl_locl.h
View File

@ -597,6 +597,7 @@ struct ssl_method_st {
* Ticket [10] EXPLICIT OCTET STRING, -- session ticket (clients only)
* Compression_meth [11] EXPLICIT OCTET STRING, -- optional compression method
* SRP_username [ 12 ] EXPLICIT OCTET STRING -- optional SRP username
* flags [ 13 ] EXPLICIT INTEGER -- optional flags
* }
* Look in ssl/ssl_asn1.c for more details
* I'm using EXPLICIT tags so I can read the damn things using asn1parse :-).
@ -674,8 +675,12 @@ struct ssl_session_st {
# ifndef OPENSSL_NO_SRP
char *srp_username;
# endif
long flags;
};
/* Extended master secret support */
# define SSL_SESS_FLAG_EXTMS 0x1
# ifndef OPENSSL_NO_SRP