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| author | Ulrich Drepper <drepper@redhat.com> | 2004-03-27 03:40:33 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2004-03-27 03:40:33 +0000 |
| commit | eec8b6cae586451deadf30c371f7b5e4c9d573d1 (patch) | |
| tree | b005437b5b7d69778e06694e4bd836a3e7c42f6a /sysdeps/generic/ldsodefs.h | |
| parent | 17c263876bf38178d3a4ba720bf81d7a214bba51 (diff) | |
Update.
2004-03-26 Ulrich Drepper <drepper@redhat.com>
* elf/dl-caller.c: New file.
* include/caller.h: New file.
* Makefile (distribute): Add include/caller.h.
* elf/Makefile (dl-routines): Add dl-caller.
* elf/dl-load.c (_dl_map_object_from_fd): Record l_text_end.
* elf/dl-open.c (check_libc_caller): Removed.
(dl_open_worker): Use __check_caller instead.
* elf/rtld.c (_rtld_global_ro): Initialize _dl_check_caller.
(_dl_start_final): Record l_text_end for ld.so map.
(dl_main): Record l_text_end for main object and vdso.
* include/link.h (struct link_map): Add l_text_end field.
* sysdeps/generic/ldsodefs.h (struct rtld_global_ro): Add
_dl_check_caller field.
Define enum allowmask. Add declaration of _dl_check_caller.
* sysdeps/unix/sysv/linux/dl-execstack.c: Also use __check_caller test.
Diffstat (limited to 'sysdeps/generic/ldsodefs.h')
| -rw-r--r-- | sysdeps/generic/ldsodefs.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/sysdeps/generic/ldsodefs.h b/sysdeps/generic/ldsodefs.h index 4ff8bbf217..53c3290e01 100644 --- a/sysdeps/generic/ldsodefs.h +++ b/sysdeps/generic/ldsodefs.h @@ -171,6 +171,17 @@ struct libname_list }; +/* Bit masks for the objects which valid callers can come from to + functions with restricted interface. */ +enum allowmask + { + allow_libc = 1, + allow_libdl = 2, + allow_libpthread = 4, + allow_ldso = 8 + }; + + /* Test whether given NAME matches any of the names of the given object. */ extern int _dl_name_match_p (const char *__name, struct link_map *__map) internal_function; @@ -492,6 +503,7 @@ struct rtld_global_ro const struct r_found_version *, int, int, struct link_map *); + int (*_dl_check_caller) (const void *, enum allowmask); }; # define __rtld_global_attribute__ @@ -878,6 +890,10 @@ extern size_t _dl_dst_count (const char *name, int is_path) attribute_hidden; extern char *_dl_dst_substitute (struct link_map *l, const char *name, char *result, int is_path) attribute_hidden; +/* Check validity of the caller. */ +extern int _dl_check_caller (const void *caller, enum allowmask mask) + attribute_hidden; + __END_DECLS #endif /* ldsodefs.h */ |