- (djm) [sshd.c] Drop supplemental groups if started as root

[openssh.git] / kex.c

diff --git a/kex.c b/kex.c
index 0a861fb976c1b992754eaee5bce63c00ca6ee97f..5a952c9c22db8dc677a37c4bbd39709d48ec0057 100644 (file)
--- a/kex.c
+++ b/kex.c
@@ -23,7 +23,7 @@
  */
 
 #include "includes.h"
-RCSID("$OpenBSD: kex.c,v 1.53 2003/02/02 10:56:08 markus Exp $");
+RCSID("$OpenBSD: kex.c,v 1.56 2003/11/21 11:57:03 djm Exp $");
 
 #include <openssl/crypto.h>
 
@@ -44,11 +44,6 @@ RCSID("$OpenBSD: kex.c,v 1.53 2003/02/02 10:56:08 markus Exp $");
 
 #define KEX_COOKIE_LEN 16
 
-/* Use privilege separation for sshd */
-int use_privsep;
-struct monitor *pmonitor;
-
-
 /* prototype */
 static void kex_kexinit_finish(Kex *);
 static void kex_choose_conf(Kex *);
@@ -237,14 +232,10 @@ kex_kexinit_finish(Kex *kex)
 
        kex_choose_conf(kex);
 
-       switch (kex->kex_type) {
-       case DH_GRP1_SHA1:
-               kexdh(kex);
-               break;
-       case DH_GEX_SHA1:
-               kexgex(kex);
-               break;
-       default:
+       if (kex->kex_type >= 0 && kex->kex_type < KEX_MAX &&
+           kex->kex[kex->kex_type] != NULL) {
+               (kex->kex[kex->kex_type])(kex);
+       } else {
                fatal("Unsupported key exchange %d", kex->kex_type);
        }
 }
@@ -301,9 +292,9 @@ choose_kex(Kex *k, char *client, char *server)
        if (k->name == NULL)
                fatal("no kex alg");
        if (strcmp(k->name, KEX_DH1) == 0) {
-               k->kex_type = DH_GRP1_SHA1;
+               k->kex_type = KEX_DH_GRP1_SHA1;
        } else if (strcmp(k->name, KEX_DHGEX) == 0) {
-               k->kex_type = DH_GEX_SHA1;
+               k->kex_type = KEX_DH_GEX_SHA1;
        } else
                fatal("bad kex alg %s", k->name);
 }
@@ -319,7 +310,7 @@ choose_hostkeyalg(Kex *k, char *client, char *server)
        xfree(hostkeyalg);
 }
 
-static int 
+static int
 proposals_match(char *my[PROPOSAL_MAX], char *peer[PROPOSAL_MAX])
 {
        static int check[] = {
@@ -401,7 +392,8 @@ kex_choose_conf(Kex *kex)
        kex->we_need = need;
 
        /* ignore the next message if the proposals do not match */
-       if (first_kex_follows && !proposals_match(my, peer)) {
+       if (first_kex_follows && !proposals_match(my, peer) &&
+          !(datafellows & SSH_BUG_FIRSTKEX)) {
                type = packet_read();
                debug2("skipping next packet (type %u)", type);
        }