diff options
Diffstat (limited to 'lib/libssl/ssl3.h')
| -rw-r--r-- | lib/libssl/ssl3.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/lib/libssl/ssl3.h b/lib/libssl/ssl3.h index baaa89e7170..9c2c41287a5 100644 --- a/lib/libssl/ssl3.h +++ b/lib/libssl/ssl3.h @@ -379,6 +379,17 @@ typedef struct ssl3_buffer_st #define SSL3_FLAGS_POP_BUFFER 0x0004 #define TLS1_FLAGS_TLS_PADDING_BUG 0x0008 #define TLS1_FLAGS_SKIP_CERT_VERIFY 0x0010 + +/* SSL3_FLAGS_SGC_RESTART_DONE is set when we + * restart a handshake because of MS SGC and so prevents us + * from restarting the handshake in a loop. It's reset on a + * renegotiation, so effectively limits the client to one restart + * per negotiation. This limits the possibility of a DDoS + * attack where the client handshakes in a loop using SGC to + * restart. Servers which permit renegotiation can still be + * effected, but we can't prevent that. + */ +#define SSL3_FLAGS_SGC_RESTART_DONE 0x0040 typedef struct ssl3_state_st { |