4f52dfbb8d
This completely removes client-side support for the SSH 1 protocol, which was already disabled in 12 but is still enabled in 11. For that reason, we will not be able to merge 7.6p1 or newer back to 11.
115 lines
2.9 KiB
C
115 lines
2.9 KiB
C
/*
|
|
* Copyright (c) 2015 Joyent, Inc
|
|
* Author: Alex Wilson <alex.wilson@joyent.com>
|
|
*
|
|
* Permission to use, copy, modify, and distribute this software for any
|
|
* purpose with or without fee is hereby granted, provided that the above
|
|
* copyright notice and this permission notice appear in all copies.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
|
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
|
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
|
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
*/
|
|
|
|
#include "includes.h"
|
|
|
|
#ifdef SANDBOX_SOLARIS
|
|
#ifndef USE_SOLARIS_PRIVS
|
|
# error "--with-solaris-privs must be used with the Solaris sandbox"
|
|
#endif
|
|
|
|
#include <sys/types.h>
|
|
|
|
#include <errno.h>
|
|
#include <stdarg.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#ifdef HAVE_PRIV_H
|
|
# include <priv.h>
|
|
#endif
|
|
|
|
#include "log.h"
|
|
#include "ssh-sandbox.h"
|
|
#include "xmalloc.h"
|
|
|
|
struct ssh_sandbox {
|
|
priv_set_t *pset;
|
|
};
|
|
|
|
struct ssh_sandbox *
|
|
ssh_sandbox_init(struct monitor *monitor)
|
|
{
|
|
struct ssh_sandbox *box = NULL;
|
|
|
|
box = xcalloc(1, sizeof(*box));
|
|
|
|
/* Start with "basic" and drop everything we don't need. */
|
|
box->pset = solaris_basic_privset();
|
|
|
|
if (box->pset == NULL) {
|
|
free(box);
|
|
return NULL;
|
|
}
|
|
|
|
/* Drop everything except the ability to use already-opened files */
|
|
if (priv_delset(box->pset, PRIV_FILE_LINK_ANY) != 0 ||
|
|
#ifdef PRIV_NET_ACCESS
|
|
priv_delset(box->pset, PRIV_NET_ACCESS) != 0 ||
|
|
#endif
|
|
#ifdef PRIV_DAX_ACCESS
|
|
priv_delset(box->pset, PRIV_DAX_ACCESS) != 0 ||
|
|
#endif
|
|
#ifdef PRIV_SYS_IB_INFO
|
|
priv_delset(box->pset, PRIV_SYS_IB_INFO) != 0 ||
|
|
#endif
|
|
priv_delset(box->pset, PRIV_PROC_EXEC) != 0 ||
|
|
priv_delset(box->pset, PRIV_PROC_FORK) != 0 ||
|
|
priv_delset(box->pset, PRIV_PROC_INFO) != 0 ||
|
|
priv_delset(box->pset, PRIV_PROC_SESSION) != 0) {
|
|
free(box);
|
|
return NULL;
|
|
}
|
|
|
|
/* These may not be available on older Solaris-es */
|
|
# if defined(PRIV_FILE_READ) && defined(PRIV_FILE_WRITE)
|
|
if (priv_delset(box->pset, PRIV_FILE_READ) != 0 ||
|
|
priv_delset(box->pset, PRIV_FILE_WRITE) != 0) {
|
|
free(box);
|
|
return NULL;
|
|
}
|
|
# endif
|
|
|
|
return box;
|
|
}
|
|
|
|
void
|
|
ssh_sandbox_child(struct ssh_sandbox *box)
|
|
{
|
|
if (setppriv(PRIV_SET, PRIV_PERMITTED, box->pset) != 0 ||
|
|
setppriv(PRIV_SET, PRIV_LIMIT, box->pset) != 0 ||
|
|
setppriv(PRIV_SET, PRIV_INHERITABLE, box->pset) != 0)
|
|
fatal("setppriv: %s", strerror(errno));
|
|
}
|
|
|
|
void
|
|
ssh_sandbox_parent_finish(struct ssh_sandbox *box)
|
|
{
|
|
priv_freeset(box->pset);
|
|
box->pset = NULL;
|
|
free(box);
|
|
}
|
|
|
|
void
|
|
ssh_sandbox_parent_preauth(struct ssh_sandbox *box, pid_t child_pid)
|
|
{
|
|
/* Nothing to do here */
|
|
}
|
|
|
|
#endif /* SANDBOX_SOLARIS */
|