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upstream: when requesting a security key touch on stderr, inform the 

user once the touch has been recorded; requested by claudio@ ok markus@

OpenBSD-Commit-ID: 3b76ee444490e546b9ea7f879e4092ee0d256233
This commit is contained in:
djm@openbsd.org 2020-11-08 22:37:24 +00:00 committed by Damien Miller
parent 292bcb2479
commit d5a0cd4fc4
5 changed files with 37 additions and 16 deletions
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5
misc.h
View File

@ -1,4 +1,4 @@
/* $OpenBSD: misc.h,v 1.88 2020/10/03 09:22:26 djm Exp $ */
/* $OpenBSD: misc.h,v 1.89 2020/11/08 22:37:24 djm Exp $ */
/*
* Author: Tatu Ylonen <ylo@cs.hut.fi>
@ -191,7 +191,8 @@ char *read_passphrase(const char *, int);
int ask_permission(const char *, ...) __attribute__((format(printf, 1, 2)));
struct notifier_ctx *notify_start(int, const char *, ...)
__attribute__((format(printf, 2, 3)));
void notify_complete(struct notifier_ctx *);
void notify_complete(struct notifier_ctx *, const char *, ...)
__attribute__((format(printf, 2, 3)));
#define MINIMUM(a, b) (((a) < (b)) ? (a) : (b))
#define MAXIMUM(a, b) (((a) > (b)) ? (a) : (b))

36
readpass.c
View File

@ -1,4 +1,4 @@
/* $OpenBSD: readpass.c,v 1.65 2020/10/18 11:32:01 djm Exp $ */
/* $OpenBSD: readpass.c,v 1.66 2020/11/08 22:37:24 djm Exp $ */
/*
* Copyright (c) 2001 Markus Friedl. All rights reserved.
*
@ -222,6 +222,14 @@ ask_permission(const char *fmt, ...)
return (allowed);
}
static void
writemsg(const char *msg)
{
(void)write(STDERR_FILENO, "\r", 1);
(void)write(STDERR_FILENO, msg, strlen(msg));
(void)write(STDERR_FILENO, "\r\n", 2);
}
struct notifier_ctx {
pid_t pid;
void (*osigchld)(int);
@ -232,8 +240,8 @@ notify_start(int force_askpass, const char *fmt, ...)
{
va_list args;
char *prompt = NULL;
pid_t pid;
void (*osigchld)(int);
pid_t pid = -1;
void (*osigchld)(int) = NULL;
const char *askpass, *s;
struct notifier_ctx *ret = NULL;
@ -244,10 +252,8 @@ notify_start(int force_askpass, const char *fmt, ...)
if (fflush(NULL) != 0)
error_f("fflush: %s", strerror(errno));
if (!force_askpass && isatty(STDERR_FILENO)) {
(void)write(STDERR_FILENO, "\r", 1);
(void)write(STDERR_FILENO, prompt, strlen(prompt));
(void)write(STDERR_FILENO, "\r\n", 2);
goto out;
writemsg(prompt);
goto out_ctx;
}
if ((askpass = getenv("SSH_ASKPASS")) == NULL)
askpass = _PATH_SSH_ASKPASS_DEFAULT;
@ -278,6 +284,7 @@ notify_start(int force_askpass, const char *fmt, ...)
_exit(1);
/* NOTREACHED */
}
out_ctx:
if ((ret = calloc(1, sizeof(*ret))) == NULL) {
kill(pid, SIGTERM);
fatal_f("calloc failed");
@ -290,9 +297,22 @@ notify_start(int force_askpass, const char *fmt, ...)
}
void
notify_complete(struct notifier_ctx *ctx)
notify_complete(struct notifier_ctx *ctx, const char *fmt, ...)
{
int ret;
char *msg = NULL;
va_list args;
if (fmt != NULL && ctx->pid == -1) {
/*
* notify_start wrote to stderr, so send conclusion message
* there too
*/
va_start(args, fmt);
xvasprintf(&msg, fmt, args);
va_end(args);
writemsg(msg);
}
if (ctx == NULL || ctx->pid <= 0) {
free(ctx);

4
ssh-agent.c
View File

@ -1,4 +1,4 @@
/* $OpenBSD: ssh-agent.c,v 1.266 2020/10/18 11:32:02 djm Exp $ */
/* $OpenBSD: ssh-agent.c,v 1.267 2020/11/08 22:37:24 djm Exp $ */
/*
* Author: Tatu Ylonen <ylo@cs.hut.fi>
* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
@ -416,7 +416,7 @@ process_sign_request2(SocketEntry *e)
/* Success */
ok = 0;
send:
notify_complete(notifier);
notify_complete(notifier, "User presence confirmed");
sshkey_free(key);
free(fp);
if (ok == 0) {

4
ssh-keygen.c
View File

@ -1,4 +1,4 @@
/* $OpenBSD: ssh-keygen.c,v 1.423 2020/10/29 03:01:18 djm Exp $ */
/* $OpenBSD: ssh-keygen.c,v 1.424 2020/11/08 22:37:24 djm Exp $ */
/*
* Author: Tatu Ylonen <ylo@cs.hut.fi>
* Copyright (c) 1994 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
@ -1854,7 +1854,7 @@ do_ca_sign(struct passwd *pw, const char *ca_key_path, int prefer_agent,
}
r = sshkey_certify(public, ca, key_type_name,
sk_provider, pin);
notify_complete(notifier);
notify_complete(notifier, "User presence confirmed");
if (r != 0)
fatal_r(r, "Couldn't certify key %s", tmp);
}

4
sshconnect2.c
View File

@ -1,4 +1,4 @@
/* $OpenBSD: sshconnect2.c,v 1.333 2020/10/30 01:50:07 djm Exp $ */
/* $OpenBSD: sshconnect2.c,v 1.334 2020/11/08 22:37:24 djm Exp $ */
/*
* Copyright (c) 2000 Markus Friedl. All rights reserved.
* Copyright (c) 2008 Damien Miller. All rights reserved.
@ -1279,7 +1279,7 @@ identity_sign(struct identity *id, u_char **sigp, size_t *lenp,
free(prompt);
if (pin != NULL)
freezero(pin, strlen(pin));
notify_complete(notifier);
notify_complete(notifier, "User presence confirmed");
sshkey_free(prv);
return r;
}