+/* $OpenBSD: sshconnect2.c,v 1.154 2006/06/06 10:20:20 markus Exp $ */
/*
* Copyright (c) 2000 Markus Friedl. All rights reserved.
*
*/
#include "includes.h"
-RCSID("$OpenBSD: sshconnect2.c,v 1.136 2004/04/08 16:08:21 henning Exp $");
+
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <sys/stat.h>
#include "openbsd-compat/sys-queue.h"
#include "authfd.h"
#include "log.h"
#include "readconf.h"
-#include "readpass.h"
+#include "misc.h"
#include "match.h"
#include "dispatch.h"
#include "canohost.h"
#include "msg.h"
#include "pathnames.h"
+#include "uidswap.h"
#ifdef GSSAPI
#include "ssh-gss.h"
compat_cipher_proposal(myproposal[PROPOSAL_ENC_ALGS_STOC]);
if (options.compression) {
myproposal[PROPOSAL_COMP_ALGS_CTOS] =
- myproposal[PROPOSAL_COMP_ALGS_STOC] = "zlib,none";
+ myproposal[PROPOSAL_COMP_ALGS_STOC] = "zlib@openssh.com,zlib,none";
} else {
myproposal[PROPOSAL_COMP_ALGS_CTOS] =
- myproposal[PROPOSAL_COMP_ALGS_STOC] = "none,zlib";
+ myproposal[PROPOSAL_COMP_ALGS_STOC] = "none,zlib@openssh.com,zlib";
}
if (options.macs != NULL) {
myproposal[PROPOSAL_MAC_ALGS_CTOS] =
/* start key exchange */
kex = kex_setup(myproposal);
kex->kex[KEX_DH_GRP1_SHA1] = kexdh_client;
+ kex->kex[KEX_DH_GRP14_SHA1] = kexdh_client;
kex->kex[KEX_DH_GEX_SHA1] = kexgex_client;
+ kex->kex[KEX_DH_GEX_SHA256] = kexgex_client;
kex->client_version_string=client_version_string;
kex->server_version_string=server_version_string;
kex->verify_host_key=&verify_host_key_callback;
input_userauth_error(int type, u_int32_t seq, void *ctxt)
{
fatal("input_userauth_error: bad message during authentication: "
- "type %d", type);
+ "type %d", type);
}
void
{
Gssctxt *gssctxt = NULL;
static gss_OID_set gss_supported = NULL;
- static int mech = 0;
+ static u_int mech = 0;
OM_uint32 min;
int ok = 0;
}
}
- if (!ok) return 0;
+ if (!ok) {
+ ssh_gssapi_delete_ctx(&gssctxt);
+ return 0;
+ }
authctxt->methoddata=(void *)gssctxt;
Authctxt *authctxt = ctxt;
Gssctxt *gssctxt = authctxt->methoddata;
gss_buffer_desc send_tok = GSS_C_EMPTY_BUFFER;
- gss_buffer_desc gssbuf, mic;
+ gss_buffer_desc mic = GSS_C_EMPTY_BUFFER;
+ gss_buffer_desc gssbuf;
OM_uint32 status, ms, flags;
Buffer b;
/* Stick it into GSSAPI and see what it says */
status = ssh_gssapi_init_ctx(gssctxt, options.gss_deleg_creds,
- &recv_tok, &send_tok, NULL);
+ &recv_tok, &send_tok, NULL);
xfree(recv_tok.value);
gss_release_buffer(&ms, &send_tok);
packet_check_eom();
- debug("Server GSSAPI Error:\n%s\n", msg);
+ debug("Server GSSAPI Error:\n%s", msg);
xfree(msg);
xfree(lang);
}
{
Key *private;
char prompt[300], *passphrase;
- int quit, i;
+ int perm_ok, quit, i;
struct stat st;
if (stat(filename, &st) < 0) {
debug3("no such identity: %s", filename);
return NULL;
}
- private = key_load_private_type(KEY_UNSPEC, filename, "", NULL);
+ private = key_load_private_type(KEY_UNSPEC, filename, "", NULL, &perm_ok);
+ if (!perm_ok)
+ return NULL;
if (private == NULL) {
if (options.batch_mode)
return NULL;
for (i = 0; i < options.number_of_password_prompts; i++) {
passphrase = read_passphrase(prompt, 0);
if (strcmp(passphrase, "") != 0) {
- private = key_load_private_type(KEY_UNSPEC, filename,
- passphrase, NULL);
+ private = key_load_private_type(KEY_UNSPEC,
+ filename, passphrase, NULL, NULL);
quit = 0;
} else {
debug2("no passphrase given, try next key");
if (key && key->type == KEY_RSA1)
continue;
options.identity_keys[i] = NULL;
- id = xmalloc(sizeof(*id));
- memset(id, 0, sizeof(*id));
+ id = xcalloc(1, sizeof(*id));
id->key = key;
id->filename = xstrdup(options.identity_files[i]);
TAILQ_INSERT_TAIL(&files, id, next);
}
}
if (!found && !options.identities_only) {
- id = xmalloc(sizeof(*id));
- memset(id, 0, sizeof(*id));
+ id = xcalloc(1, sizeof(*id));
id->key = key;
id->filename = comment;
id->ac = ac;
return -1;
}
if (pid == 0) {
- seteuid(getuid());
- setuid(getuid());
+ permanently_set_uid(getpwuid(getuid()));
close(from[0]);
if (dup2(from[1], STDOUT_FILENO) < 0)
fatal("ssh_keysign: dup2: %s", strerror(errno));
if (p == NULL) {
error("userauth_hostbased: cannot get local ipaddr/name");
key_free(private);
+ xfree(blob);
return 0;
}
len = strlen(p) + 2;
- chost = xmalloc(len);
- strlcpy(chost, p, len);
- strlcat(chost, ".", len);
+ xasprintf(&chost, "%s.", p);
debug2("userauth_hostbased: chost %s", chost);
xfree(p);
error("key_sign failed");
xfree(chost);
xfree(pkalg);
+ xfree(blob);
return 0;
}
packet_start(SSH2_MSG_USERAUTH_REQUEST);
xfree(signature);
xfree(chost);
xfree(pkalg);
+ xfree(blob);
packet_send();
return 1;