70 lines
2.3 KiB
Diff
70 lines
2.3 KiB
Diff
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From faa1764ca23f587fb7fc995a4b2bdf48c5c80147 Mon Sep 17 00:00:00 2001
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From: Karel Zak <kzak@redhat.com>
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Date: Wed, 3 Jan 2024 12:38:21 +0100
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Subject: libmount: add mnt_context_within_helper() wrapper
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Addresses: https://issues.redhat.com/browse/RHEL-14612
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Upstream: http://github.com/util-linux/util-linux/commit/0f9b2438c927d2787bf43b693809af3719e15646
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Signed-off-by: Karel Zak <kzak@redhat.com>
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---
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libmount/src/context.c | 9 ++++++++-
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libmount/src/context_umount.c | 2 +-
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libmount/src/mountP.h | 1 +
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3 files changed, 10 insertions(+), 2 deletions(-)
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diff --git a/libmount/src/context.c b/libmount/src/context.c
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index 3b32224e3..71b8d730a 100644
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--- a/libmount/src/context.c
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+++ b/libmount/src/context.c
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@@ -2799,7 +2799,6 @@ int mnt_context_get_excode(
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return rc;
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}
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-
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/**
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* mnt_context_init_helper
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* @cxt: mount context
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@@ -2835,6 +2834,14 @@ int mnt_context_init_helper(struct libmnt_context *cxt, int action,
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return rc;
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}
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+/*
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+ * libmount used in /sbin/[u]mount.<type> helper
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+ */
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+int mnt_context_within_helper(struct libmnt_context *cxt)
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+{
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+ return cxt && (cxt->flags & MNT_FL_HELPER);
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+}
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+
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/**
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* mnt_context_helper_setopt:
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* @cxt: context
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diff --git a/libmount/src/context_umount.c b/libmount/src/context_umount.c
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index 8773c65ff..ba1e35456 100644
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--- a/libmount/src/context_umount.c
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+++ b/libmount/src/context_umount.c
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@@ -272,7 +272,7 @@ static int lookup_umount_fs_by_statfs(struct libmnt_context *cxt, const char *tg
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*/
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if (mnt_context_is_restricted(cxt)
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|| *tgt != '/'
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- || (cxt->flags & MNT_FL_HELPER)
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+ || mnt_context_within_helper(cxt)
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|| mnt_context_mtab_writable(cxt)
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|| mnt_context_is_force(cxt)
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|| mnt_context_is_lazy(cxt)
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diff --git a/libmount/src/mountP.h b/libmount/src/mountP.h
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index 30fac593a..4b4c5de1e 100644
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--- a/libmount/src/mountP.h
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+++ b/libmount/src/mountP.h
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@@ -423,6 +423,7 @@ extern const char *mnt_context_get_writable_tabpath(struct libmnt_context *cxt);
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extern int mnt_context_get_mtab_for_target(struct libmnt_context *cxt,
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struct libmnt_table **mtab, const char *tgt);
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+extern int mnt_context_within_helper(struct libmnt_context *cxt);
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extern int mnt_context_prepare_srcpath(struct libmnt_context *cxt);
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extern int mnt_context_prepare_target(struct libmnt_context *cxt);
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--
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2.43.0
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