diff options
Diffstat (limited to 'src/plugins/nat/nat_inlines.h')
| -rw-r--r-- | src/plugins/nat/nat_inlines.h | 48 |
1 files changed, 0 insertions, 48 deletions
diff --git a/src/plugins/nat/nat_inlines.h b/src/plugins/nat/nat_inlines.h index 121d2c71aaa..4dad11bed72 100644 --- a/src/plugins/nat/nat_inlines.h +++ b/src/plugins/nat/nat_inlines.h @@ -657,54 +657,6 @@ get_icmp_o2i_ed_key (vlib_buffer_t * b, ip4_header_t * ip0, u32 rx_fib_index, return 0; } -always_inline void -mss_clamping (snat_main_t * sm, tcp_header_t * tcp, ip_csum_t * sum) -{ - u8 *data; - u8 opt_len, opts_len, kind; - u16 mss; - - if (!(sm->mss_clamping && tcp_syn (tcp))) - return; - - opts_len = (tcp_doff (tcp) << 2) - sizeof (tcp_header_t); - data = (u8 *) (tcp + 1); - for (; opts_len > 0; opts_len -= opt_len, data += opt_len) - { - kind = data[0]; - - if (kind == TCP_OPTION_EOL) - break; - else if (kind == TCP_OPTION_NOOP) - { - opt_len = 1; - continue; - } - else - { - if (opts_len < 2) - return; - opt_len = data[1]; - - if (opt_len < 2 || opt_len > opts_len) - return; - } - - if (kind == TCP_OPTION_MSS) - { - mss = *(u16 *) (data + 2); - if (clib_net_to_host_u16 (mss) > sm->mss_clamping) - { - *sum = - ip_csum_update (*sum, mss, sm->mss_value_net, ip4_header_t, - length); - clib_memcpy_fast (data + 2, &sm->mss_value_net, 2); - } - return; - } - } -} - /** * @brief Check if packet should be translated * |