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Message-Id: <1452589008-18750-6-git-send-email-lixi@ddn.com>
Date: Tue, 12 Jan 2016 17:56:48 +0900
From: Li Xi <pkuelelixi@...il.com>
To: linux-ext4@...r.kernel.org, tytso@....edu, adilger@...ger.ca,
jack@...e.cz, viro@...iv.linux.org.uk, hch@...radead.org,
dmonakhov@...nvz.org
Subject: [v3 5/5] Add project ID support for chattr/lsattr
Chattr and lsattr can be used to set or get project ID:
chattr -p <project id> file
lsattr -p file
Signed-off-by: Li Xi <lixi@....com>
Signed-off-by: Wang Shilong <wshilong@....com>
---
lib/e2p/Makefile.in | 11 +++++++++--
lib/e2p/e2p.h | 2 ++
misc/chattr.1.in | 7 +++++++
misc/chattr.c | 33 +++++++++++++++++++++++++++++++--
misc/lsattr.1.in | 5 ++++-
misc/lsattr.c | 18 ++++++++++++++++--
6 files changed, 69 insertions(+), 7 deletions(-)
diff --git a/lib/e2p/Makefile.in b/lib/e2p/Makefile.in
index ab036a6..2ab93f4 100644
--- a/lib/e2p/Makefile.in
+++ b/lib/e2p/Makefile.in
@@ -19,7 +19,7 @@ all:: e2p.pc
OBJS= feature.o fgetflags.o fsetflags.o fgetversion.o fsetversion.o \
getflags.o getversion.o hashstr.o iod.o ls.o mntopts.o \
parse_num.o pe.o pf.o ps.o setflags.o setversion.o uuid.o \
- ostype.o percent.o crypto_mode.o
+ ostype.o percent.o crypto_mode.o fgetproject.o fsetproject.o
SRCS= $(srcdir)/feature.c $(srcdir)/fgetflags.c \
$(srcdir)/fsetflags.c $(srcdir)/fgetversion.c \
@@ -28,7 +28,8 @@ SRCS= $(srcdir)/feature.c $(srcdir)/fgetflags.c \
$(srcdir)/ls.c $(srcdir)/mntopts.c $(srcdir)/parse_num.c \
$(srcdir)/pe.c $(srcdir)/pf.c $(srcdir)/ps.c \
$(srcdir)/setflags.c $(srcdir)/setversion.c $(srcdir)/uuid.c \
- $(srcdir)/ostype.c $(srcdir)/percent.c $(srcdir)/crypto_mode.c
+ $(srcdir)/ostype.c $(srcdir)/percent.c $(srcdir)/crypto_modei.c \
+ $(srcdir)/fgetproject.c $(srcdir)/fsetproject.c
HFILES= e2p.h
LIBRARY= libe2p
@@ -137,6 +138,12 @@ fgetversion.o: $(srcdir)/fgetversion.c $(top_builddir)/lib/config.h \
fsetversion.o: $(srcdir)/fsetversion.c $(top_builddir)/lib/config.h \
$(top_builddir)/lib/dirpaths.h $(srcdir)/e2p.h \
$(top_srcdir)/lib/ext2fs/ext2_fs.h $(top_builddir)/lib/ext2fs/ext2_types.h
+fsetproject.o: $(srcdir)/fsetproject.c $(top_builddir)/lib/config.h \
+ $(top_builddir)/lib/dirpaths.h $(srcdir)/e2p.h $(srcdir)/project.h \
+ $(top_srcdir)/lib/ext2fs/ext2_fs.h $(top_builddir)/lib/ext2fs/ext2_types.h
+fgetproject.o: $(srcdir)/fgetproject.c $(top_builddir)/lib/config.h \
+ $(top_builddir)/lib/dirpaths.h $(srcdir)/e2p.h $(srcdir)/project.h \
+ $(top_srcdir)/lib/ext2fs/ext2_fs.h $(top_builddir)/lib/ext2fs/ext2_types.h
getflags.o: $(srcdir)/getflags.c $(top_builddir)/lib/config.h \
$(top_builddir)/lib/dirpaths.h $(srcdir)/e2p.h \
$(top_srcdir)/lib/ext2fs/ext2_fs.h $(top_builddir)/lib/ext2fs/ext2_types.h
diff --git a/lib/e2p/e2p.h b/lib/e2p/e2p.h
index 5fa41f4..66b83b4 100644
--- a/lib/e2p/e2p.h
+++ b/lib/e2p/e2p.h
@@ -32,6 +32,8 @@ int fgetflags (const char * name, unsigned long * flags);
int fgetversion (const char * name, unsigned long * version);
int fsetflags (const char * name, unsigned long flags);
int fsetversion (const char * name, unsigned long version);
+int fgetproject(const char *name, unsigned long *project);
+int fsetproject(const char *name, unsigned long project);
int getflags (int fd, unsigned long * flags);
int getversion (int fd, unsigned long * version);
int iterate_on_dir (const char * dir_name,
diff --git a/misc/chattr.1.in b/misc/chattr.1.in
index 1d6b057..9cd14b2 100644
--- a/misc/chattr.1.in
+++ b/misc/chattr.1.in
@@ -12,6 +12,10 @@ chattr \- change file attributes on a Linux file system
.I version
]
[
+.B \-p
+.I project
+]
+[
.I mode
]
.I files...
@@ -71,6 +75,9 @@ Suppress most error messages.
.TP
.BI \-v " version"
Set the file's version/generation number.
+.TP
+.BI \-p " project"
+Set the file's project number.
.SH ATTRIBUTES
A file with the 'a' attribute set can only be open in append mode for writing.
Only the superuser or a process possessing the CAP_LINUX_IMMUTABLE
diff --git a/misc/chattr.c b/misc/chattr.c
index 40069c9..982a593 100644
--- a/misc/chattr.c
+++ b/misc/chattr.c
@@ -64,6 +64,9 @@ static int set_version;
static unsigned long version;
+static int set_project;
+static unsigned long project;
+
static int recursive;
static int verbose;
static int silent;
@@ -83,7 +86,7 @@ static unsigned long sf;
static void usage(void)
{
fprintf(stderr,
- _("Usage: %s [-RVf] [-+=aAcCdDeijPsStTu] [-v version] files...\n"),
+ _("Usage: %s [-pRVf] [-+=aAcCdDeijPsStTu] [-v version] files...\n"),
program_name);
exit(1);
}
@@ -146,6 +149,20 @@ static int decode_arg (int * i, int argc, char ** argv)
silent = 1;
continue;
}
+ if (*p == 'p') {
+ (*i)++;
+ if (*i >= argc)
+ usage ();
+ project = strtol (argv[*i], &tmp, 0);
+ if (*tmp) {
+ com_err (program_name, 0,
+ _("bad project - %s\n"),
+ argv[*i]);
+ usage ();
+ }
+ set_project = 1;
+ continue;
+ }
if (*p == 'v') {
(*i)++;
if (*i >= argc)
@@ -249,6 +266,18 @@ static int change_attributes(const char * name)
return -1;
}
}
+ if (set_project) {
+ if (verbose)
+ printf (_("Project of %s set as %lu\n"), name, version);
+ if (fsetproject (name, project) == -1) {
+ if (!silent)
+ com_err (program_name, errno,
+ _("while setting project on %s"),
+ name);
+ return -1;
+ }
+
+ }
if (S_ISDIR(st.st_mode) && recursive)
return iterate_on_dir (name, chattr_dir_proc, NULL);
return 0;
@@ -312,7 +341,7 @@ int main (int argc, char ** argv)
fputs("Can't both set and unset same flag.\n", stderr);
exit (1);
}
- if (!(add || rem || set || set_version)) {
+ if (!(add || rem || set || set_version || set_project )) {
fputs(_("Must use '-v', =, - or +\n"), stderr);
exit (1);
}
diff --git a/misc/lsattr.1.in b/misc/lsattr.1.in
index 7798a34..bc137f2 100644
--- a/misc/lsattr.1.in
+++ b/misc/lsattr.1.in
@@ -5,7 +5,7 @@ lsattr \- list file attributes on a Linux second extended file system
.SH SYNOPSIS
.B lsattr
[
-.B \-RVadv
+.B \-RVadpv
]
[
.I files...
@@ -31,6 +31,9 @@ List directories like other files, rather than listing their contents.
.TP
.B \-v
List the file's version/generation number.
+.TP
+.B \-p
+List the file's project number.
.SH AUTHOR
.B lsattr
was written by Remy Card <Remy.Card@...ux.org>. It is currently being
diff --git a/misc/lsattr.c b/misc/lsattr.c
index f6b4384..786e95c 100644
--- a/misc/lsattr.c
+++ b/misc/lsattr.c
@@ -60,6 +60,7 @@ static unsigned pf_options;
static int recursive;
static int verbose;
static int generation_opt;
+static int project_opt;
#ifdef _LFS64_LARGEFILE
#define LSTAT lstat64
@@ -71,7 +72,7 @@ static int generation_opt;
static void usage(void)
{
- fprintf(stderr, _("Usage: %s [-RVadlv] [files...]\n"), program_name);
+ fprintf(stderr, _("Usage: %s [-RVadlpv] [files...]\n"), program_name);
exit(1);
}
@@ -79,12 +80,22 @@ static int list_attributes (const char * name)
{
unsigned long flags;
unsigned long generation;
+ unsigned long project;
if (fgetflags (name, &flags) == -1) {
com_err (program_name, errno, _("While reading flags on %s"),
name);
return -1;
}
+ if (project_opt) {
+ if (fgetproject(name, &project) == -1) {
+ com_err (program_name, errno,
+ _("While reading project on %s"),
+ name);
+ return -1;
+ }
+ printf ("%5lu ", project);
+ }
if (generation_opt) {
if (fgetversion (name, &generation) == -1) {
com_err (program_name, errno,
@@ -171,7 +182,7 @@ int main (int argc, char ** argv)
#endif
if (argc && *argv)
program_name = *argv;
- while ((c = getopt (argc, argv, "RVadlv")) != EOF)
+ while ((c = getopt (argc, argv, "RVadlvp")) != EOF)
switch (c)
{
case 'R':
@@ -192,6 +203,9 @@ int main (int argc, char ** argv)
case 'v':
generation_opt = 1;
break;
+ case 'p':
+ project_opt = 1;
+ break;
default:
usage();
}
--
1.7.1
--
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