diff options
Diffstat (limited to 'freebsd/sys/netinet/tcp_subr.c')
| -rw-r--r-- | freebsd/sys/netinet/tcp_subr.c | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/freebsd/sys/netinet/tcp_subr.c b/freebsd/sys/netinet/tcp_subr.c index db2b2661..44ec38c7 100644 --- a/freebsd/sys/netinet/tcp_subr.c +++ b/freebsd/sys/netinet/tcp_subr.c @@ -201,6 +201,11 @@ SYSCTL_INT(_net_inet_tcp, TCPCTL_DO_RFC1323, rfc1323, CTLFLAG_VNET | CTLFLAG_RW, &VNET_NAME(tcp_do_rfc1323), 0, "Enable rfc1323 (high performance TCP) extensions"); +VNET_DEFINE(int, tcp_ts_offset_per_conn) = 1; +SYSCTL_INT(_net_inet_tcp, OID_AUTO, ts_offset_per_conn, CTLFLAG_VNET | CTLFLAG_RW, + &VNET_NAME(tcp_ts_offset_per_conn), 0, + "Initialize TCP timestamps per connection instead of per host pair"); + static int tcp_log_debug = 0; SYSCTL_INT(_net_inet_tcp, OID_AUTO, log_debug, CTLFLAG_RW, &tcp_log_debug, 0, "Log errors caused by incoming TCP segments"); @@ -819,8 +824,12 @@ register_tcp_functions_as_names(struct tcp_function_block *blk, int wait, } } + if (blk->tfb_flags & TCP_FUNC_BEING_REMOVED) { + *num_names = 0; + return (EINVAL); + } + refcount_init(&blk->tfb_refcnt, 0); - blk->tfb_flags = 0; blk->tfb_id = atomic_fetchadd_int(&next_tcp_stack_id, 1); for (i = 0; i < *num_names; i++) { n = malloc(sizeof(struct tcp_function), M_TCPFUNCTIONS, wait); @@ -2651,7 +2660,17 @@ tcp_keyed_hash(struct in_conninfo *inc, u_char *key, u_int len) uint32_t tcp_new_ts_offset(struct in_conninfo *inc) { - return (tcp_keyed_hash(inc, V_ts_offset_secret, + struct in_conninfo inc_store, *local_inc; + + if (!V_tcp_ts_offset_per_conn) { + memcpy(&inc_store, inc, sizeof(struct in_conninfo)); + inc_store.inc_lport = 0; + inc_store.inc_fport = 0; + local_inc = &inc_store; + } else { + local_inc = inc; + } + return (tcp_keyed_hash(local_inc, V_ts_offset_secret, sizeof(V_ts_offset_secret))); } |