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