2.39-0.4: fix libmount
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Karel Zak
parent
5fa93ec5e0
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09904cbd56
110
libmount-fix-superblock-rw-ro-reconfiguration.patch
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110
libmount-fix-superblock-rw-ro-reconfiguration.patch
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From c7ffe0cf6b7bdf62db70bd7700d6ed40d9106ba9 Mon Sep 17 00:00:00 2001
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From: Karel Zak <kzak@redhat.com>
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Date: Wed, 5 Apr 2023 21:44:55 +0200
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Subject: [PATCH] libmount: fix superblock rw/ro reconfiguration
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The classic mount(2) defaults to 'rw', but the new API does not reset
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superblock to 'rw' if the flag is not explicitly used for
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FSCONFIG_CMD_RECONFIGURE.
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Addresses: https://bugzilla.redhat.com/show_bug.cgi?id=2180593
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Signed-off-by: Karel Zak <kzak@redhat.com>
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---
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libmount/src/hook_mount.c | 47 +++++++++++++++++++++++++++------------
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1 file changed, 33 insertions(+), 14 deletions(-)
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diff --git a/libmount/src/hook_mount.c b/libmount/src/hook_mount.c
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index 071dad783..117150dec 100644
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--- a/libmount/src/hook_mount.c
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+++ b/libmount/src/hook_mount.c
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@@ -111,14 +111,33 @@ static int hookset_deinit(struct libmnt_context *cxt, const struct libmnt_hookse
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return 0;
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}
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+static inline int fsconfig_set_value(
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+ struct libmnt_context *cxt,
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+ const struct libmnt_hookset *hs,
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+ int fd,
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+ const char *name, const char *value)
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+{
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+ int rc;
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+
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+ DBG(HOOK, ul_debugobj(hs, " fsconfig(name=%s,value=%s)", name,
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+ value ? : ""));
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+ if (value)
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+ rc = fsconfig(fd, FSCONFIG_SET_STRING, name, value, 0);
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+ else
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+ rc = fsconfig(fd, FSCONFIG_SET_FLAG, name, NULL, 0);
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+
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+ set_syscall_status(cxt, "fsconfig", rc == 0);
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+ return rc;
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+}
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static int configure_superblock(struct libmnt_context *cxt,
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- const struct libmnt_hookset *hs, int fd)
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+ const struct libmnt_hookset *hs,
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+ int fd, int force_rwro)
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{
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struct libmnt_optlist *ol;
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struct libmnt_iter itr;
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struct libmnt_opt *opt;
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- int rc;
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+ int rc = 0, has_rwro = 0;
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DBG(HOOK, ul_debugobj(hs, " config FS"));
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@@ -136,22 +155,21 @@ static int configure_superblock(struct libmnt_context *cxt,
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if (ent && mnt_opt_get_map(opt) == cxt->map_linux &&
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ent->id == MS_RDONLY) {
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value = NULL;
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+ has_rwro = 1;
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} else if (!name || mnt_opt_get_map(opt) || mnt_opt_is_external(opt))
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continue;
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- DBG(HOOK, ul_debugobj(hs, " fsconfig(name=%s,value=%s)", name, value));
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- if (value)
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- rc = fsconfig(fd, FSCONFIG_SET_STRING, name, value, 0);
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- else
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- rc = fsconfig(fd, FSCONFIG_SET_FLAG, name, NULL, 0);
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-
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- set_syscall_status(cxt, "fsconfig", rc == 0);
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+ rc = fsconfig_set_value(cxt, hs, fd, name, value);
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if (rc != 0)
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- return -errno;
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+ goto done;
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}
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- DBG(HOOK, ul_debugobj(hs, " config done [rc=0]"));
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- return 0;
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+ if (force_rwro && !has_rwro)
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+ rc = fsconfig_set_value(cxt, hs, fd, "rw", NULL);
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+
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+done:
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+ DBG(HOOK, ul_debugobj(hs, " config done [rc=%d]", rc));
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+ return rc != 0 && errno ? -errno : rc;
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}
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static int open_fs_configuration_context(struct libmnt_context *cxt,
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@@ -244,7 +262,7 @@ static int hook_create_mount(struct libmnt_context *cxt,
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set_syscall_status(cxt, "fsconfig", rc == 0);
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if (!rc)
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- rc = configure_superblock(cxt, hs, api->fd_fs);
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+ rc = configure_superblock(cxt, hs, api->fd_fs, 0);
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if (!rc) {
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DBG(HOOK, ul_debugobj(hs, "create FS"));
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rc = fsconfig(api->fd_fs, FSCONFIG_CMD_CREATE, NULL, NULL, 0);
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@@ -301,8 +319,9 @@ static int hook_reconfigure_mount(struct libmnt_context *cxt,
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return -errno;
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}
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- rc = configure_superblock(cxt, hs, api->fd_fs);
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+ rc = configure_superblock(cxt, hs, api->fd_fs, 1);
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if (!rc) {
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+ DBG(HOOK, ul_debugobj(hs, "re-configurate FS"));
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rc = fsconfig(api->fd_fs, FSCONFIG_CMD_RECONFIGURE, NULL, NULL, 0);
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set_syscall_status(cxt, "fsconfig", rc == 0);
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}
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--
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2.39.2
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@ -2,7 +2,7 @@
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Summary: Collection of basic system utilities
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Name: util-linux
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Version: 2.39
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Release: 0.3%{?dist}
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Release: 0.4%{?dist}
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License: GPLv2 and GPLv2+ and LGPLv2+ and BSD with advertising and Public Domain
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URL: https://en.wikipedia.org/wiki/Util-linux
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@ -94,6 +94,9 @@ Patch0: login-lastlog-create.patch
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# https://github.com/coreos/console-login-helper-messages/issues/60
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Patch1: login-default-motd-file.patch
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# upstream (#2180593)
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Patch2: libmount-fix-superblock-rw-ro-reconfiguration.patch
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%description
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The util-linux package contains a large variety of low-level system
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utilities that are necessary for a Linux system to function. Among
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@ -918,6 +921,12 @@ fi
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%{_libdir}/python*/site-packages/libmount/
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%changelog
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* Wed Apr 5 2023 Karel Zak <kzak@redhat.com> - 2.39-0.4
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- fix #2180593 (superblock reconfiguration libmount issue)
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* Tue Apr 4 2023 Karel Zak <kzak@redhat.com> - 2.39-0.3
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- fix spec file
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* Tue Apr 4 2023 Karel Zak <kzak@redhat.com> - 2.39-0.2
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- upgrade to v2.39-rc2
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