diff options
Diffstat (limited to 'meta/recipes-core/systemd/systemd/0012-don-t-pass-AT_SYMLINK_NOFOLLOW-flag-to-faccessat.patch')
| -rw-r--r-- | meta/recipes-core/systemd/systemd/0012-don-t-pass-AT_SYMLINK_NOFOLLOW-flag-to-faccessat.patch | 97 |
1 files changed, 0 insertions, 97 deletions
diff --git a/meta/recipes-core/systemd/systemd/0012-don-t-pass-AT_SYMLINK_NOFOLLOW-flag-to-faccessat.patch b/meta/recipes-core/systemd/systemd/0012-don-t-pass-AT_SYMLINK_NOFOLLOW-flag-to-faccessat.patch deleted file mode 100644 index 6eecd3197c..0000000000 --- a/meta/recipes-core/systemd/systemd/0012-don-t-pass-AT_SYMLINK_NOFOLLOW-flag-to-faccessat.patch +++ /dev/null @@ -1,97 +0,0 @@ -From 46fdc959257d60d9b32953cae0152ae118f8564b Mon Sep 17 00:00:00 2001 -From: Andre McCurdy <armccurdy@gmail.com> -Date: Tue, 10 Oct 2017 14:33:30 -0700 -Subject: [PATCH] don't pass AT_SYMLINK_NOFOLLOW flag to faccessat() - -Avoid using AT_SYMLINK_NOFOLLOW flag. It doesn't seem like the right -thing to do and it's not portable (not supported by musl). See: - - http://lists.landley.net/pipermail/toybox-landley.net/2014-September/003610.html - http://www.openwall.com/lists/musl/2015/02/05/2 - -Note that laccess() is never passing AT_EACCESS so a lot of the -discussion in the links above doesn't apply. Note also that -(currently) all systemd callers of laccess() pass mode as F_OK, so -only check for existence of a file, not access permissions. -Therefore, in this case, the only distiction between faccessat() -with (flag == 0) and (flag == AT_SYMLINK_NOFOLLOW) is the behaviour -for broken symlinks; laccess() on a broken symlink will succeed with -(flag == AT_SYMLINK_NOFOLLOW) and fail (flag == 0). - -The laccess() macros was added to systemd some time ago and it's not -clear if or why it needs to return success for broken symlinks. Maybe -just historical and not actually necessary or desired behaviour? - -Upstream-Status: Inappropriate [musl specific] - -Signed-off-by: Andre McCurdy <armccurdy@gmail.com> - ---- - src/basic/fs-util.h | 21 ++++++++++++++++++++- - src/shared/base-filesystem.c | 6 +++--- - 2 files changed, 23 insertions(+), 4 deletions(-) - -diff --git a/src/basic/fs-util.h b/src/basic/fs-util.h -index 0bbb3f6298..3dc494dbfb 100644 ---- a/src/basic/fs-util.h -+++ b/src/basic/fs-util.h -@@ -46,8 +46,27 @@ int futimens_opath(int fd, const struct timespec ts[2]); - int fd_warn_permissions(const char *path, int fd); - int stat_warn_permissions(const char *path, const struct stat *st); - -+/* -+ Avoid using AT_SYMLINK_NOFOLLOW flag. It doesn't seem like the right thing to -+ do and it's not portable (not supported by musl). See: -+ -+ http://lists.landley.net/pipermail/toybox-landley.net/2014-September/003610.html -+ http://www.openwall.com/lists/musl/2015/02/05/2 -+ -+ Note that laccess() is never passing AT_EACCESS so a lot of the discussion in -+ the links above doesn't apply. Note also that (currently) all systemd callers -+ of laccess() pass mode as F_OK, so only check for existence of a file, not -+ access permissions. Therefore, in this case, the only distiction between -+ faccessat() with (flag == 0) and (flag == AT_SYMLINK_NOFOLLOW) is the -+ behaviour for broken symlinks; laccess() on a broken symlink will succeed -+ with (flag == AT_SYMLINK_NOFOLLOW) and fail (flag == 0). -+ -+ The laccess() macros was added to systemd some time ago and it's not clear if -+ or why it needs to return success for broken symlinks. Maybe just historical -+ and not actually necessary or desired behaviour? -+*/ - #define laccess(path, mode) \ -- RET_NERRNO(faccessat(AT_FDCWD, (path), (mode), AT_SYMLINK_NOFOLLOW)) -+ RET_NERRNO(faccessat(AT_FDCWD, (path), (mode), 0)) - - int touch_file(const char *path, bool parents, usec_t stamp, uid_t uid, gid_t gid, mode_t mode); - int touch(const char *path); -diff --git a/src/shared/base-filesystem.c b/src/shared/base-filesystem.c -index 5f5328c8cf..d396bc99fe 100644 ---- a/src/shared/base-filesystem.c -+++ b/src/shared/base-filesystem.c -@@ -117,7 +117,7 @@ int base_filesystem_create(const char *root, uid_t uid, gid_t gid) { - return log_error_errno(errno, "Failed to open root file system: %m"); - - for (size_t i = 0; i < ELEMENTSOF(table); i++) { -- if (faccessat(fd, table[i].dir, F_OK, AT_SYMLINK_NOFOLLOW) >= 0) -+ if (faccessat(fd, table[i].dir, F_OK, 0) >= 0) - continue; - - if (table[i].target) { -@@ -125,7 +125,7 @@ int base_filesystem_create(const char *root, uid_t uid, gid_t gid) { - - /* check if one of the targets exists */ - NULSTR_FOREACH(s, table[i].target) { -- if (faccessat(fd, s, F_OK, AT_SYMLINK_NOFOLLOW) < 0) -+ if (faccessat(fd, s, F_OK, 0) < 0) - continue; - - /* check if a specific file exists at the target path */ -@@ -136,7 +136,7 @@ int base_filesystem_create(const char *root, uid_t uid, gid_t gid) { - if (!p) - return log_oom(); - -- if (faccessat(fd, p, F_OK, AT_SYMLINK_NOFOLLOW) < 0) -+ if (faccessat(fd, p, F_OK, 0) < 0) - continue; - } - |