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63 lines
1.6 KiB
63 lines
1.6 KiB
/*
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* Copyright (c) Huawei Technologies Co., Ltd., 2015
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
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* the GNU General Public License for more details.
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*/
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#include "../libclone/libclone.h"
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#include "test.h"
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#include "safe_macros.h"
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#include <stdbool.h>
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#define UID_MAP 0
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#define GID_MAP 1
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static int dummy_child(void *v)
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{
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(void) v;
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return 0;
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}
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static int check_newuser(void)
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{
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int pid, status;
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if (tst_kvercmp(3, 8, 0) < 0)
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tst_brkm(TCONF, NULL, "CLONE_NEWUSER not supported");
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pid = do_clone_unshare_test(T_CLONE, CLONE_NEWUSER, dummy_child, NULL);
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if (pid == -1)
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tst_brkm(TCONF | TERRNO, NULL, "CLONE_NEWUSER not supported");
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SAFE_WAIT(NULL, &status);
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return 0;
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}
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LTP_ATTRIBUTE_UNUSED static int updatemap(int cpid, bool type, int idnum,
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int parentmappid, void (*cleanup)(void))
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{
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char path[BUFSIZ];
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char content[BUFSIZ];
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int fd;
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if (type == UID_MAP)
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sprintf(path, "/proc/%d/uid_map", cpid);
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else if (type == GID_MAP)
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sprintf(path, "/proc/%d/gid_map", cpid);
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else
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tst_brkm(TBROK, cleanup, "invalid type parameter");
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sprintf(content, "%d %d 1", idnum, parentmappid);
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fd = SAFE_OPEN(cleanup, path, O_WRONLY, 0644);
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SAFE_WRITE(cleanup, 1, fd, content, strlen(content));
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SAFE_CLOSE(cleanup, fd);
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return 0;
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}
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