7788581473
For sudo_edit_open() et al what we need is a copy of the current cred to restore after dir_is_writable() changes to the user cred.
56 lines
2.0 KiB
C
56 lines
2.0 KiB
C
/*
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* SPDX-License-Identifier: ISC
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*
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* Copyright (c) 2021 Todd C. Miller <Todd.Miller@sudo.ws>
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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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#ifndef SUDO_EDIT_H
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#define SUDO_EDIT_H
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/*
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* Directory open flags for use with openat(2).
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* Use O_SEARCH/O_PATH and/or O_DIRECTORY where possible.
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*/
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#if defined(O_SEARCH)
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# if defined(O_DIRECTORY)
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# define DIR_OPEN_FLAGS (O_SEARCH|O_DIRECTORY)
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# else
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# define DIR_OPEN_FLAGS (O_SEARCH)
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# endif
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#elif defined(O_PATH)
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# if defined(O_DIRECTORY)
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# define DIR_OPEN_FLAGS (O_PATH|O_DIRECTORY)
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# else
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# define DIR_OPEN_FLAGS (O_PATH)
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# endif
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#elif defined(O_DIRECTORY)
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# define DIR_OPEN_FLAGS (O_RDONLY|O_DIRECTORY)
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#else
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# define DIR_OPEN_FLAGS (O_RDONLY|O_NONBLOCK)
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#endif
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/* copy_file.c */
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int sudo_copy_file(const char *src, int src_fd, off_t src_len, const char *dst, int dst_fd, off_t dst_len);
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bool sudo_check_temp_file(int tfd, const char *tname, uid_t uid, struct stat *sb);
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/* edit_open.c */
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struct sudo_cred;
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void switch_user(uid_t euid, gid_t egid, int ngroups, GETGROUPS_T *groups);
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int sudo_edit_open(char *path, int oflags, mode_t mode, int sflags, struct sudo_cred *user_cred, struct sudo_cred *cur_cred);
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int dir_is_writable(int dfd, struct sudo_cred *user_cred, struct sudo_cred *cur_cred);
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bool sudo_edit_parent_valid(char *path, int sflags, struct sudo_cred *user_cred, struct sudo_cred *cur_cred);
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#endif /* SUDO_EDIT_H */
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