diff options
Diffstat (limited to 'sys/netinet/tcp_input.c')
| -rw-r--r-- | sys/netinet/tcp_input.c | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/sys/netinet/tcp_input.c b/sys/netinet/tcp_input.c index e6d4a443d89..d8de1608d26 100644 --- a/sys/netinet/tcp_input.c +++ b/sys/netinet/tcp_input.c @@ -1,4 +1,4 @@ -/* $OpenBSD: tcp_input.c,v 1.18 1998/03/18 02:37:47 angelos Exp $ */ +/* $OpenBSD: tcp_input.c,v 1.19 1998/06/27 02:42:40 deraadt Exp $ */ /* $NetBSD: tcp_input.c,v 1.23 1996/02/13 23:43:44 christos Exp $ */ /* @@ -155,7 +155,8 @@ tck_addfriend(struct in_addr f) */ static u_int32_t -tck_makecookie(struct in_addr f) +tck_makecookie(f) + struct in_addr f; { static MD5_CTX ctx; u_int8_t buf[16]; @@ -175,13 +176,15 @@ tck_makecookie(struct in_addr f) } static int -tck_chkcookie(struct tcpiphdr *ti) +tck_chkcookie(ti) + struct tcpiphdr *ti; { #ifdef DEBUG_TCPCOOKIE printf("tck_chkcookie: src = 0x%08x, cookie = 0x%08x, seq = 0x%08x, ack = 0x%08x\n", ntohl(ti->ti_src.s_addr), tck_makecookie(ti->ti_src), ti->ti_seq, ti->ti_ack); #endif /* DEBUG_TCPCOOKIE */ - if (tck_makecookie(ti->ti_src) == ti->ti_seq) { /* seq in host order */ + if (tck_makecookie(ti->ti_src) == ti->ti_seq) { + /* seq in host order */ tck_addfriend(ti->ti_src); return 1; } @@ -770,15 +773,15 @@ findpcb: * try to obtain a cookie and drop the frame. */ - if (!tck_isafriend(ti->ti_src)) - { - u_long acookie; + if (!tck_isafriend(ti->ti_src)) { + u_int32_t acookie; + acookie = tck_makecookie(ti->ti_src); ti->ti_dport = htons(TCK_PORT); tcp_respond(tp, ti, m, acookie, acookie, TH_ACK); /* destroy temporarily created socket */ if (dropsocket) - (void) soabort(so); + (void) soabort(so); return; } #endif /* TCPCOOKIE */ |