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upstream commit 

more simplification and removal of SSHv1-related code;
ok djm@

Upstream-ID: d2f041aa0b79c0ebd98c68a01e5a0bfab2cf3b55
This commit is contained in:
naddy@openbsd.org 2017-05-05 10:42:49 +00:00 committed by Damien Miller
parent 2e9c324b3a
commit 3e371bd212
5 changed files with 44 additions and 76 deletions
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46
authfd.c
View File

@ -1,4 +1,4 @@
/* $OpenBSD: authfd.c,v 1.102 2017/05/04 06:10:57 djm Exp $ */
/* $OpenBSD: authfd.c,v 1.103 2017/05/05 10:42:49 naddy Exp $ */
/*
* Author: Tatu Ylonen <ylo@cs.hut.fi>
* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
@ -227,35 +227,21 @@ deserialise_identity2(struct sshbuf *ids, struct sshkey **keyp, char **commentp)
* Fetch list of identities held by the agent.
*/
int
ssh_fetch_identitylist(int sock, int version, struct ssh_identitylist **idlp)
ssh_fetch_identitylist(int sock, struct ssh_identitylist **idlp)
{
u_char type, code1 = 0, code2 = 0;
u_char type;
u_int32_t num, i;
struct sshbuf *msg;
struct ssh_identitylist *idl = NULL;
int r;
/* Determine request and expected response types */
switch (version) {
case 1:
code1 = SSH_AGENTC_REQUEST_RSA_IDENTITIES;
code2 = SSH_AGENT_RSA_IDENTITIES_ANSWER;
break;
case 2:
code1 = SSH2_AGENTC_REQUEST_IDENTITIES;
code2 = SSH2_AGENT_IDENTITIES_ANSWER;
break;
default:
return SSH_ERR_INVALID_ARGUMENT;
}
/*
* Send a message to the agent requesting for a list of the
* identities it can represent.
*/
if ((msg = sshbuf_new()) == NULL)
return SSH_ERR_ALLOC_FAIL;
if ((r = sshbuf_put_u8(msg, code1)) != 0)
if ((r = sshbuf_put_u8(msg, SSH2_AGENTC_REQUEST_IDENTITIES)) != 0)
goto out;
if ((r = ssh_request_reply(sock, msg, msg)) != 0)
@ -267,7 +253,7 @@ ssh_fetch_identitylist(int sock, int version, struct ssh_identitylist **idlp)
if (agent_failed(type)) {
r = SSH_ERR_AGENT_FAILURE;
goto out;
} else if (type != code2) {
} else if (type != SSH2_AGENT_IDENTITIES_ANSWER) {
r = SSH_ERR_INVALID_FORMAT;
goto out;
}
@ -292,20 +278,14 @@ ssh_fetch_identitylist(int sock, int version, struct ssh_identitylist **idlp)
goto out;
}
for (i = 0; i < num;) {
switch (version) {
case 1:
break;
case 2:
if ((r = deserialise_identity2(msg,
&(idl->keys[i]), &(idl->comments[i]))) != 0) {
if (r == SSH_ERR_KEY_TYPE_UNKNOWN) {
/* Gracefully skip unknown key types */
num--;
continue;
} else
goto out;
}
break;
if ((r = deserialise_identity2(msg, &(idl->keys[i]),
&(idl->comments[i]))) != 0) {
if (r == SSH_ERR_KEY_TYPE_UNKNOWN) {
/* Gracefully skip unknown key types */
num--;
continue;
} else
goto out;
}
i++;
}

5
authfd.h
View File

@ -1,4 +1,4 @@
/* $OpenBSD: authfd.h,v 1.39 2015/12/04 16:41:28 markus Exp $ */
/* $OpenBSD: authfd.h,v 1.40 2017/05/05 10:42:49 naddy Exp $ */
/*
* Author: Tatu Ylonen <ylo@cs.hut.fi>
@ -27,8 +27,7 @@ int ssh_get_authentication_socket(int *fdp);
void ssh_close_authentication_socket(int sock);
int ssh_lock_agent(int sock, int lock, const char *password);
int ssh_fetch_identitylist(int sock, int version,
struct ssh_identitylist **idlp);
int ssh_fetch_identitylist(int sock, struct ssh_identitylist **idlp);
void ssh_free_identitylist(struct ssh_identitylist *idl);
int ssh_add_identity_constrained(int sock, struct sshkey *key,
const char *comment, u_int life, u_int confirm);

3
pathnames.h
View File

@ -1,4 +1,4 @@
/* $OpenBSD: pathnames.h,v 1.26 2017/05/03 21:08:09 naddy Exp $ */
/* $OpenBSD: pathnames.h,v 1.27 2017/05/05 10:42:49 naddy Exp $ */
/*
* Author: Tatu Ylonen <ylo@cs.hut.fi>
@ -71,7 +71,6 @@
* Name of the default file containing client-side authentication key. This
* file should only be readable by the user him/herself.
*/
#define _PATH_SSH_CLIENT_IDENTITY _PATH_SSH_USER_DIR "/identity"
#define _PATH_SSH_CLIENT_ID_DSA _PATH_SSH_USER_DIR "/id_dsa"
#define _PATH_SSH_CLIENT_ID_ECDSA _PATH_SSH_USER_DIR "/id_ecdsa"
#define _PATH_SSH_CLIENT_ID_RSA _PATH_SSH_USER_DIR "/id_rsa"

62
ssh-add.c
View File

@ -1,4 +1,4 @@
/* $OpenBSD: ssh-add.c,v 1.130 2017/05/04 06:10:57 djm Exp $ */
/* $OpenBSD: ssh-add.c,v 1.131 2017/05/05 10:42:49 naddy Exp $ */
/*
* Author: Tatu Ylonen <ylo@cs.hut.fi>
* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
@ -362,46 +362,36 @@ static int
list_identities(int agent_fd, int do_fp)
{
char *fp;
int r, had_identities = 0;
int r;
struct ssh_identitylist *idlist;
size_t i;
int version = 2;
for (; version <= 2; version++) {
if ((r = ssh_fetch_identitylist(agent_fd, version,
&idlist)) != 0) {
if (r != SSH_ERR_AGENT_NO_IDENTITIES)
fprintf(stderr, "error fetching identities for "
"protocol %d: %s\n", version, ssh_err(r));
continue;
}
for (i = 0; i < idlist->nkeys; i++) {
had_identities = 1;
if (do_fp) {
fp = sshkey_fingerprint(idlist->keys[i],
fingerprint_hash, SSH_FP_DEFAULT);
printf("%u %s %s (%s)\n",
sshkey_size(idlist->keys[i]),
fp == NULL ? "(null)" : fp,
idlist->comments[i],
sshkey_type(idlist->keys[i]));
free(fp);
} else {
if ((r = sshkey_write(idlist->keys[i],
stdout)) != 0) {
fprintf(stderr, "sshkey_write: %s\n",
ssh_err(r));
continue;
}
fprintf(stdout, " %s\n", idlist->comments[i]);
}
}
ssh_free_identitylist(idlist);
}
if (!had_identities) {
printf("The agent has no identities.\n");
if ((r = ssh_fetch_identitylist(agent_fd, &idlist)) != 0) {
if (r != SSH_ERR_AGENT_NO_IDENTITIES)
fprintf(stderr, "error fetching identities: %s\n",
ssh_err(r));
else
printf("The agent has no identities.\n");
return -1;
}
for (i = 0; i < idlist->nkeys; i++) {
if (do_fp) {
fp = sshkey_fingerprint(idlist->keys[i],
fingerprint_hash, SSH_FP_DEFAULT);
printf("%u %s %s (%s)\n", sshkey_size(idlist->keys[i]),
fp == NULL ? "(null)" : fp, idlist->comments[i],
sshkey_type(idlist->keys[i]));
free(fp);
} else {
if ((r = sshkey_write(idlist->keys[i], stdout)) != 0) {
fprintf(stderr, "sshkey_write: %s\n",
ssh_err(r));
continue;
}
fprintf(stdout, " %s\n", idlist->comments[i]);
}
}
ssh_free_identitylist(idlist);
return 0;
}

4
sshconnect2.c
View File

@ -1,4 +1,4 @@
/* $OpenBSD: sshconnect2.c,v 1.257 2017/04/30 23:18:44 djm Exp $ */
/* $OpenBSD: sshconnect2.c,v 1.258 2017/05/05 10:42:49 naddy Exp $ */
/*
* Copyright (c) 2000 Markus Friedl. All rights reserved.
* Copyright (c) 2008 Damien Miller. All rights reserved.
@ -1345,7 +1345,7 @@ pubkey_prepare(Authctxt *authctxt)
if (r != SSH_ERR_AGENT_NOT_PRESENT)
debug("%s: ssh_get_authentication_socket: %s",
__func__, ssh_err(r));
} else if ((r = ssh_fetch_identitylist(agent_fd, 2, &idlist)) != 0) {
} else if ((r = ssh_fetch_identitylist(agent_fd, &idlist)) != 0) {
if (r != SSH_ERR_AGENT_NO_IDENTITIES)
debug("%s: ssh_fetch_identitylist: %s",
__func__, ssh_err(r));