Daan De Meyer
d49f3f287a
Every dlopen_xxx() helper now takes an int log_level argument. It is passed through to dlopen_many_sym_or_warn() (which in turn propagates it to dlopen_verbose() for the library-not-installed case), and is used by the fallback stub when support for the library is not compiled in to emit a "<lib> support is not compiled in." message at the caller's level. Callers pass LOG_DEBUG when gracefully degrading, or a higher level when the failure should surface, and no longer need to log redundantly at the call site. As part of this, dlopen_bpf_full() (which already took a log_level) is merged into dlopen_bpf() rather than keeping both. The static inline fallbacks used to live in the headers, which required pulling log.h in from every header that declared a dlopen_xxx(). Move them into the .c files instead: the declaration is always outside the #if HAVE_XXX block, the impl sits outside the outer #if HAVE_XXX wrap with its own internal #if HAVE_XXX/#else/#endif, and apparmor-util.c, idn-util.c, libmount-util.c and pam-util.c are now always compiled so they can host their stubs.
101 lines
3.2 KiB
C
101 lines
3.2 KiB
C
/* SPDX-License-Identifier: LGPL-2.1-or-later */
|
|
#pragma once
|
|
|
|
#include "shared-forward.h"
|
|
|
|
#if HAVE_ACL
|
|
#include <acl/libacl.h> /* IWYU pragma: export */
|
|
#include <sys/acl.h> /* IWYU pragma: export */
|
|
|
|
#include "dlfcn-util.h"
|
|
|
|
extern DLSYM_PROTOTYPE(acl_add_perm);
|
|
extern DLSYM_PROTOTYPE(acl_calc_mask);
|
|
extern DLSYM_PROTOTYPE(acl_copy_entry);
|
|
extern DLSYM_PROTOTYPE(acl_create_entry);
|
|
extern DLSYM_PROTOTYPE(acl_delete_entry);
|
|
extern DLSYM_PROTOTYPE(acl_delete_perm);
|
|
extern DLSYM_PROTOTYPE(acl_dup);
|
|
extern DLSYM_PROTOTYPE(acl_entries);
|
|
extern DLSYM_PROTOTYPE(acl_extended_file);
|
|
extern DLSYM_PROTOTYPE(acl_free);
|
|
extern DLSYM_PROTOTYPE(acl_from_mode);
|
|
extern DLSYM_PROTOTYPE(acl_from_text);
|
|
extern DLSYM_PROTOTYPE(acl_get_entry);
|
|
extern DLSYM_PROTOTYPE(acl_get_fd);
|
|
extern DLSYM_PROTOTYPE(acl_get_file);
|
|
extern DLSYM_PROTOTYPE(acl_get_perm);
|
|
extern DLSYM_PROTOTYPE(acl_get_permset);
|
|
extern DLSYM_PROTOTYPE(acl_get_qualifier);
|
|
extern DLSYM_PROTOTYPE(acl_get_tag_type);
|
|
extern DLSYM_PROTOTYPE(acl_init);
|
|
extern DLSYM_PROTOTYPE(acl_set_fd);
|
|
extern DLSYM_PROTOTYPE(acl_set_file);
|
|
extern DLSYM_PROTOTYPE(acl_set_permset);
|
|
extern DLSYM_PROTOTYPE(acl_set_qualifier);
|
|
extern DLSYM_PROTOTYPE(acl_set_tag_type);
|
|
extern DLSYM_PROTOTYPE(acl_to_any_text);
|
|
|
|
int devnode_acl(int fd, const Set *uids);
|
|
|
|
int calc_acl_mask_if_needed(acl_t *acl_p);
|
|
int add_base_acls_if_needed(acl_t *acl_p, const char *path);
|
|
int acl_search_groups(const char* path, char ***ret_groups);
|
|
int parse_acl(
|
|
const char *text,
|
|
acl_t *ret_acl_access,
|
|
acl_t *ret_acl_access_exec,
|
|
acl_t *ret_acl_default,
|
|
bool want_mask);
|
|
int acls_for_file(const char *path, acl_type_t type, acl_t acl, acl_t *ret);
|
|
int fd_add_uid_acl_permission(int fd, uid_t uid, unsigned mask);
|
|
|
|
/* acl_free() takes multiple argument types. Multiple cleanup functions are necessary. */
|
|
DEFINE_TRIVIAL_CLEANUP_FUNC_FULL_RENAME(acl_t, sym_acl_free, acl_freep, NULL);
|
|
DEFINE_TRIVIAL_CLEANUP_FUNC_FULL_RENAME(char*, sym_acl_free, acl_free_charpp, NULL);
|
|
DEFINE_TRIVIAL_CLEANUP_FUNC_FULL_RENAME(uid_t*, sym_acl_free, acl_free_uid_tpp, NULL);
|
|
DEFINE_TRIVIAL_CLEANUP_FUNC_FULL_RENAME(gid_t*, sym_acl_free, acl_free_gid_tpp, NULL);
|
|
|
|
static inline int acl_set_perm(acl_permset_t ps, acl_perm_t p, bool b) {
|
|
return (b ? sym_acl_add_perm : sym_acl_delete_perm)(ps, p);
|
|
}
|
|
|
|
#else
|
|
|
|
typedef void* acl_t;
|
|
typedef int acl_tag_t;
|
|
typedef unsigned acl_type_t;
|
|
|
|
#define ACL_READ 0x04
|
|
#define ACL_WRITE 0x02
|
|
#define ACL_EXECUTE 0x01
|
|
|
|
/* acl_tag_t */
|
|
#define ACL_UNDEFINED_TAG (0x00)
|
|
#define ACL_USER_OBJ (0x01)
|
|
#define ACL_USER (0x02)
|
|
#define ACL_GROUP_OBJ (0x04)
|
|
#define ACL_GROUP (0x08)
|
|
#define ACL_MASK (0x10)
|
|
#define ACL_OTHER (0x20)
|
|
|
|
/* acl_type_t */
|
|
#define ACL_TYPE_ACCESS (0x8000)
|
|
#define ACL_TYPE_DEFAULT (0x4000)
|
|
|
|
static inline int devnode_acl(int fd, const Set *uids) {
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
static inline int fd_add_uid_acl_permission(int fd, uid_t uid, unsigned mask) {
|
|
return -EOPNOTSUPP;
|
|
}
|
|
#endif
|
|
|
|
int dlopen_libacl(int log_level);
|
|
|
|
int fd_acl_make_read_only(int fd);
|
|
int fd_acl_make_writable(int fd);
|
|
|
|
int inode_type_can_acl(mode_t mode);
|