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/*
* Copyright (c) 2020 Serge Hallyn
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the copyright holders or contributors may not be used to
* endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <config.h>
#include <fcntl.h>
#include <stdio.h>
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include <pwd.h>
#include <stdbool.h>
#include "subordinateio.h"
#include "idmapping.h"
#include "subid.h"
const char *Prog = "(libsubid)";
FILE *shadow_logfd;
bool libsubid_init(const char *progname, FILE * logfd)
{
if (progname) {
progname = strdup(progname);
if (progname)
Prog = progname;
else
return false;
}
if (logfd) {
shadow_logfd = logfd;
return true;
}
shadow_logfd = fopen("/dev/null", "w");
if (!shadow_logfd) {
shadow_logfd = stderr;
return false;
}
return true;
}
static
int get_subid_ranges(const char *owner, enum subid_type id_type, struct subid_range **ranges)
{
return list_owner_ranges(owner, id_type, ranges);
}
int get_subuid_ranges(const char *owner, struct subid_range **ranges)
{
return get_subid_ranges(owner, ID_TYPE_UID, ranges);
}
int get_subgid_ranges(const char *owner, struct subid_range **ranges)
{
return get_subid_ranges(owner, ID_TYPE_GID, ranges);
}
static
int get_subid_owner(unsigned long id, enum subid_type id_type, uid_t **owner)
{
return find_subid_owners(id, id_type, owner);
}
int get_subuid_owners(uid_t uid, uid_t **owner)
{
return get_subid_owner((unsigned long)uid, ID_TYPE_UID, owner);
}
int get_subgid_owners(gid_t gid, uid_t **owner)
{
return get_subid_owner((unsigned long)gid, ID_TYPE_GID, owner);
}
static
bool grant_subid_range(struct subordinate_range *range, bool reuse,
enum subid_type id_type)
{
return new_subid_range(range, id_type, reuse);
}
bool grant_subuid_range(struct subordinate_range *range, bool reuse)
{
return grant_subid_range(range, reuse, ID_TYPE_UID);
}
bool grant_subgid_range(struct subordinate_range *range, bool reuse)
{
return grant_subid_range(range, reuse, ID_TYPE_GID);
}
static
bool ungrant_subid_range(struct subordinate_range *range, enum subid_type id_type)
{
return release_subid_range(range, id_type);
}
bool ungrant_subuid_range(struct subordinate_range *range)
{
return ungrant_subid_range(range, ID_TYPE_UID);
}
bool ungrant_subgid_range(struct subordinate_range *range)
{
return ungrant_subid_range(range, ID_TYPE_GID);
}
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