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Diffstat (limited to 'libgo/go/crypto/tls/common.go')
| -rw-r--r-- | libgo/go/crypto/tls/common.go | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/libgo/go/crypto/tls/common.go b/libgo/go/crypto/tls/common.go index a888df7..f86c90d 100644 --- a/libgo/go/crypto/tls/common.go +++ b/libgo/go/crypto/tls/common.go @@ -204,7 +204,24 @@ type Config struct { // connections using that key are compromised. SessionTicketKey [32]byte - serverInitOnce sync.Once + serverInitOnce sync.Once // guards calling (*Config).serverInit +} + +func (c *Config) serverInit() { + if c.SessionTicketsDisabled { + return + } + + // If the key has already been set then we have nothing to do. + for _, b := range c.SessionTicketKey { + if b != 0 { + return + } + } + + if _, err := io.ReadFull(c.rand(), c.SessionTicketKey[:]); err != nil { + c.SessionTicketsDisabled = true + } } func (c *Config) rand() io.Reader { |