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From 28663e752e125da99f8636ea0227d168f1e0e6aa Mon Sep 17 00:00:00 2001
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From: Karel Zak <kzak@redhat.com>
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Date: Thu, 15 Oct 2015 11:53:44 +0200
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Subject: [PATCH 62/84] mount, umount, swapon, fsck, lsblk, findmnt: ignore
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malformed lines
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The libmount provides way how to deal with parsing errors in fstab --
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on error callback function is executed and according to the return
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libmount manipulate with the malformed line, possible are three
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states:
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1/ fatal error; all file ignored (callback rc < 0)
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2/ recoverable error; malformed line ignored (callback rc > 0)
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3/ ignore the error (callback rc == 0)
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The 2/ is the default if no callback specified.
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Unfortunately our utils uses 3/. The correct way is to use 2/.
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Upstream: http://github.com/karelzak/util-linux/commit/1cd9d0d7463850ef6b16a78b8a55e56dbf9a8db1
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Upstream: http://github.com/karelzak/util-linux/commit/1bb02a2da9f1bf7d80b352d540b29371099ab570
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Addresses: http://bugzilla.redhat.com/show_bug.cgi?id=1271850
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Signed-off-by: Karel Zak <kzak@redhat.com>
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---
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disk-utils/fsck.c | 2 +-
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libmount/src/tab_parse.c | 2 +-
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misc-utils/findmnt.c | 2 +-
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misc-utils/lsblk.c | 11 +++++++++++
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sys-utils/mount.c | 2 +-
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sys-utils/swapon-common.c | 11 +++++++++++
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sys-utils/umount.c | 2 +-
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7 files changed, 27 insertions(+), 5 deletions(-)
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diff --git a/disk-utils/fsck.c b/disk-utils/fsck.c
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index 6e3a2c0..3ef8e5b 100644
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--- a/disk-utils/fsck.c
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+++ b/disk-utils/fsck.c
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@@ -421,7 +421,7 @@ static int parser_errcb(struct libmnt_table *tb __attribute__ ((__unused__)),
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const char *filename, int line)
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{
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warnx(_("%s: parse error at line %d -- ignore"), filename, line);
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- return 0;
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+ return 1;
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}
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/*
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diff --git a/libmount/src/tab_parse.c b/libmount/src/tab_parse.c
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index e930fd8..987e671 100644
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--- a/libmount/src/tab_parse.c
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+++ b/libmount/src/tab_parse.c
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@@ -540,7 +540,7 @@ int mnt_table_parse_stream(struct libmnt_table *tb, FILE *f, const char *filenam
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}
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if (rc) {
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mnt_free_fs(fs);
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- if (rc == 1)
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+ if (rc > 0)
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continue; /* recoverable error */
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if (feof(f))
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break;
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diff --git a/misc-utils/findmnt.c b/misc-utils/findmnt.c
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index 615ba08..f16da91 100644
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--- a/misc-utils/findmnt.c
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+++ b/misc-utils/findmnt.c
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@@ -752,7 +752,7 @@ static int parser_errcb(struct libmnt_table *tb __attribute__ ((__unused__)),
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const char *filename, int line)
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{
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warnx(_("%s: parse error at line %d"), filename, line);
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- return 0;
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+ return 1;
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}
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static char **append_tabfile(char **files, int *nfiles, char *filename)
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diff --git a/misc-utils/lsblk.c b/misc-utils/lsblk.c
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index 9e12a90..cd28c1d 100644
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--- a/misc-utils/lsblk.c
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+++ b/misc-utils/lsblk.c
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@@ -337,6 +337,15 @@ static char *get_device_path(struct blkdev_cxt *cxt)
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return xstrdup(path);
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}
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+static int table_parser_errcb(struct libmnt_table *tb __attribute__((__unused__)),
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+ const char *filename, int line)
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+{
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+ if (filename)
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+ warnx(_("%s: parse error: ignore entry at line %d."),
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+ filename, line);
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+ return 1;
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+}
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+
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static int is_active_swap(const char *filename)
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{
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if (!swaps) {
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@@ -346,6 +355,7 @@ static int is_active_swap(const char *filename)
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if (!mntcache)
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mntcache = mnt_new_cache();
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+ mnt_table_set_parser_errcb(swaps, table_parser_errcb);
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mnt_table_set_cache(swaps, mntcache);
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mnt_table_parse_swaps(swaps, NULL);
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}
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@@ -368,6 +378,7 @@ static char *get_device_mountpoint(struct blkdev_cxt *cxt)
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if (!mntcache)
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mntcache = mnt_new_cache();
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+ mnt_table_set_parser_errcb(mtab, table_parser_errcb);
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mnt_table_set_cache(mtab, mntcache);
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mnt_table_parse_mtab(mtab, NULL);
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}
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diff --git a/sys-utils/mount.c b/sys-utils/mount.c
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index 0998b01..f332070 100644
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--- a/sys-utils/mount.c
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+++ b/sys-utils/mount.c
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@@ -101,7 +101,7 @@ static int table_parser_errcb(struct libmnt_table *tb __attribute__((__unused__)
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if (filename)
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warnx(_("%s: parse error: ignore entry at line %d."),
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filename, line);
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- return 0;
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+ return 1;
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}
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/*
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diff --git a/sys-utils/swapon-common.c b/sys-utils/swapon-common.c
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index 5c95ef3..5f14ddb 100644
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--- a/sys-utils/swapon-common.c
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+++ b/sys-utils/swapon-common.c
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@@ -11,12 +11,22 @@ static struct libmnt_table *swaps, *fstab;
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struct libmnt_cache *mntcache;
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+static int table_parser_errcb(struct libmnt_table *tb __attribute__((__unused__)),
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+ const char *filename, int line)
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+{
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+ if (filename)
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+ warnx(_("%s: parse error: ignore entry at line %d."),
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+ filename, line);
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+ return 1;
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+}
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+
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struct libmnt_table *get_fstab(void)
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{
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if (!fstab) {
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fstab = mnt_new_table();
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if (!fstab)
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return NULL;
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+ mnt_table_set_parser_errcb(fstab, table_parser_errcb);
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mnt_table_set_cache(fstab, mntcache);
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if (mnt_table_parse_fstab(fstab, NULL) != 0)
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return NULL;
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@@ -32,6 +42,7 @@ struct libmnt_table *get_swaps(void)
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if (!swaps)
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return NULL;
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mnt_table_set_cache(swaps, mntcache);
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+ mnt_table_set_parser_errcb(swaps, table_parser_errcb);
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if (mnt_table_parse_swaps(swaps, NULL) != 0)
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return NULL;
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}
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diff --git a/sys-utils/umount.c b/sys-utils/umount.c
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index 1bd275f..9c47744 100644
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--- a/sys-utils/umount.c
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+++ b/sys-utils/umount.c
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@@ -45,7 +45,7 @@ static int table_parser_errcb(struct libmnt_table *tb __attribute__((__unused__)
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if (filename)
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warnx(_("%s: parse error: ignore entry at line %d."),
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filename, line);
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- return 0;
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+ return 1;
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}
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--
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2.7.4
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