tyler.durden/openssh-portable
1
0
Fork 0
mirror of https://github.com/PowerShell/openssh-portable.git synced 2025-04-08 18:35:05 +02:00
Code Issues Packages Projects Releases Wiki Activity

upstream: use recallocarray to allocate the agent sockets table;

Browse Source 
also clear socket entries that are being marked as unused.

spinkle in some debug2() spam to make it easier to watch an agent
do its thing.

ok markus

OpenBSD-Commit-ID: 74582c8e82e96afea46f6c7b6813a429cbc75922
This commit is contained in:
djm@openbsd.org 2021-01-26 00:47:47 +00:00 committed by Damien Miller
parent cb7b22ea20
commit 1fe16fd61b
1 changed files with 16 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
ssh-agent.c
View File

@ -1,4 +1,4 @@
/* $OpenBSD: ssh-agent.c,v 1.268 2021/01/11 02:12:58 dtucker Exp $ */
/* $OpenBSD: ssh-agent.c,v 1.269 2021/01/26 00:47:47 djm Exp $ */
/*
* Author: Tatu Ylonen <ylo@cs.hut.fi>
* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
@ -175,11 +175,12 @@ static void
close_socket(SocketEntry *e)
{
close(e->fd);
e->fd = -1;
e->type = AUTH_UNUSED;
sshbuf_free(e->input);
sshbuf_free(e->output);
sshbuf_free(e->request);
memset(e, '\0', sizeof(*e));
e->fd = -1;
e->type = AUTH_UNUSED;
}
static void
@ -249,6 +250,8 @@ process_request_identities(SocketEntry *e)
struct sshbuf *msg;
int r;
debug2_f("entering");
if ((msg = sshbuf_new()) == NULL)
fatal_f("sshbuf_new failed");
if ((r = sshbuf_put_u8(msg, SSH2_AGENT_IDENTITIES_ANSWER)) != 0 ||
@ -441,6 +444,7 @@ process_remove_identity(SocketEntry *e)
struct sshkey *key = NULL;
Identity *id;
debug2_f("entering");
if ((r = sshkey_froms(e->request, &key)) != 0) {
error_fr(r, "parse key");
goto done;
@ -466,6 +470,7 @@ process_remove_all_identities(SocketEntry *e)
{
Identity *id;
debug2_f("entering");
/* Loop over all identities and clear the keys. */
for (id = TAILQ_FIRST(&idtab->idlist); id;
id = TAILQ_FIRST(&idtab->idlist)) {
@ -519,6 +524,7 @@ process_add_identity(SocketEntry *e)
u_char ctype;
int r = SSH_ERR_INTERNAL_ERROR;
debug2_f("entering");
if ((r = sshkey_private_deserialize(e->request, &k)) != 0 ||
k == NULL ||
(r = sshbuf_get_cstring(e->request, &comment, NULL)) != 0) {
@ -660,6 +666,7 @@ process_lock_agent(SocketEntry *e, int lock)
static u_int fail_count = 0;
size_t pwlen;
debug2_f("entering");
/*
* This is deliberately fatal: the user has requested that we lock,
* but we can't parse their request properly. The only safe thing to
@ -730,6 +737,7 @@ process_add_smartcard_key(SocketEntry *e)
struct sshkey **keys = NULL, *k;
Identity *id;
debug2_f("entering");
if ((r = sshbuf_get_cstring(e->request, &provider, NULL)) != 0 ||
(r = sshbuf_get_cstring(e->request, &pin, NULL)) != 0) {
error_fr(r, "parse");
@ -809,6 +817,7 @@ process_remove_smartcard_key(SocketEntry *e)
int r, success = 0;
Identity *id, *nxt;
debug2_f("entering");
if ((r = sshbuf_get_cstring(e->request, &provider, NULL)) != 0 ||
(r = sshbuf_get_cstring(e->request, &pin, NULL)) != 0) {
error_fr(r, "parse");
@ -951,6 +960,8 @@ new_socket(sock_type type, int fd)
{
u_int i, old_alloc, new_alloc;
debug_f("type = %s", type == AUTH_CONNECTION ? "CONNECTION" :
(type == AUTH_SOCKET ? "SOCKET" : "UNKNOWN"));
set_nonblock(fd);
if (fd > max_fd)
@ -968,7 +979,8 @@ new_socket(sock_type type, int fd)
}
old_alloc = sockets_alloc;
new_alloc = sockets_alloc + 10;
sockets = xreallocarray(sockets, new_alloc, sizeof(sockets[0]));
sockets = xrecallocarray(sockets, old_alloc, new_alloc,
sizeof(sockets[0]));
for (i = old_alloc; i < new_alloc; i++)
sockets[i].type = AUTH_UNUSED;
sockets_alloc = new_alloc;