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Add ssl_set_arc4_support()

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Rationale: if people want to disable RC4 but otherwise keep the default suite
list, it was cumbersome. Also, since it uses a global array,
ssl_list_ciphersuite() is not a convenient place. So the SSL modules look like
the best place, even if it means temporarily adding one SSL setting.
This commit is contained in:
Manuel Pégourié-Gonnard
2015-01-12 13:43:29 +01:00
parent 448ea506bf
commit bd47a58221
9 changed files with 114 additions and 15 deletions
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15
programs/ssl/ssl_server2.c
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@ -107,6 +107,7 @@ int main( int argc, char *argv[] )
#define DFL_EXCHANGES 1
#define DFL_MIN_VERSION SSL_MINOR_VERSION_1
#define DFL_MAX_VERSION -1
#define DFL_ARC4 SSL_ARC4_DISABLED
#define DFL_AUTH_MODE SSL_VERIFY_OPTIONAL
#define DFL_MFL_CODE SSL_MAX_FRAG_LEN_NONE
#define DFL_TICKETS SSL_SESSION_TICKETS_ENABLED
@ -167,6 +168,7 @@ struct options
int exchanges; /* number of data exchanges */
int min_version; /* minimum protocol version accepted */
int max_version; /* maximum protocol version accepted */
int arc4; /* flag for arc4 suites support */
int auth_mode; /* verify mode for connection */
unsigned char mfl_code; /* code for maximum fragment length */
int tickets; /* enable / disable session tickets */
@ -327,6 +329,7 @@ static int my_send( void *ctx, const unsigned char *buf, size_t len )
"\n" \
" min_version=%%s default: \"ssl3\"\n" \
" max_version=%%s default: \"tls1_2\"\n" \
" arc4=%%d default: 0 (disabled)\n" \
" force_version=%%s default: \"\" (none)\n" \
" options: ssl3, tls1, tls1_1, tls1_2\n" \
"\n" \
@ -704,6 +707,7 @@ int main( int argc, char *argv[] )
opt.exchanges = DFL_EXCHANGES;
opt.min_version = DFL_MIN_VERSION;
opt.max_version = DFL_MAX_VERSION;
opt.arc4 = DFL_ARC4;
opt.auth_mode = DFL_AUTH_MODE;
opt.mfl_code = DFL_MFL_CODE;
opt.tickets = DFL_TICKETS;
@ -827,6 +831,15 @@ int main( int argc, char *argv[] )
else
goto usage;
}
else if( strcmp( p, "arc4" ) == 0 )
{
switch( atoi( q ) )
{
case 0: opt.arc4 = SSL_ARC4_DISABLED; break;
case 1: opt.arc4 = SSL_ARC4_ENABLED; break;
default: goto usage;
}
}
else if( strcmp( p, "force_version" ) == 0 )
{
if( strcmp( q, "ssl3" ) == 0 )
@ -1293,6 +1306,8 @@ int main( int argc, char *argv[] )
if( opt.force_ciphersuite[0] != DFL_FORCE_CIPHER )
ssl_set_ciphersuites( &ssl, opt.force_ciphersuite );
else
ssl_set_arc4_support( &ssl, opt.arc4 );
if( opt.version_suites != NULL )
{