From 57df7233ae3789f525b8d7e910bf1e3ffe50ac87 Mon Sep 17 00:00:00 2001
From: Robert Marshall <rmarshall@redhat.com>
Date: Mon, 16 Mar 2015 14:14:19 -0400
Subject: [PATCH 2/2] Use Distribution Package Sort for grub2-mkconfig
(#1124074)
Users reported that newly installed kernels on their systems installed
with grub-mkconfig would not appear on the grub boot list in order
starting with the most recent. Added an option for rpm-based systems to
use the rpm-sort library to sort kernels instead.
Resolves rhbz#1124074
---
.gitignore | 1 +
Makefile.util.def | 16 +++
configure.ac | 29 +++++
util/grub-mkconfig_lib.in | 8 +-
util/grub-rpm-sort.8 | 12 ++
util/grub-rpm-sort.c | 281 ++++++++++++++++++++++++++++++++++++++++++++++
6 files changed, 346 insertions(+), 1 deletion(-)
create mode 100644 util/grub-rpm-sort.8
create mode 100644 util/grub-rpm-sort.c
diff --git a/.gitignore b/.gitignore
index 18ab8e8..b6c4577 100644
--- a/.gitignore
+++ b/.gitignore
@@ -237,6 +237,7 @@ po/POTFILES.in
po/POTFILES-shell.in
/grub-glue-efi
/grub-render-label
+grub-rpm-sort
/grub-glue-efi.exe
/grub-render-label.exe
grub-core/gnulib/locale.h
diff --git a/Makefile.util.def b/Makefile.util.def
index 87029a1..3ac7572 100644
--- a/Makefile.util.def
+++ b/Makefile.util.def
@@ -675,6 +675,22 @@ program = {
ldadd = '$(LIBINTL) $(LIBDEVMAPPER) $(LIBUTIL) $(LIBZFS) $(LIBNVPAIR) $(LIBGEOM)';
};
+program = {
+ name = grub-rpm-sort;
+ mansection = 8;
+ installdir = sbin;
+
+ common = grub-core/kern/emu/misc.c;
+ common = grub-core/kern/emu/argp_common.c;
+ common = grub-core/osdep/init.c;
+ common = util/misc.c;
+ common = util/grub-rpm-sort.c;
+
+ ldadd = grub-core/gnulib/libgnu.a;
+ ldadd = libgrubkern.a;
+ ldadd = '$(LIBDEVMAPPER) $(LIBRPM)';
+};
+
script = {
name = grub-mkconfig;
common = util/grub-mkconfig.in;
diff --git a/configure.ac b/configure.ac
index 048ce7c..de17e65 100644
--- a/configure.ac
+++ b/configure.ac
@@ -65,6 +65,7 @@ grub_TRANSFORM([grub-mkrelpath])
grub_TRANSFORM([grub-mkrescue])
grub_TRANSFORM([grub-probe])
grub_TRANSFORM([grub-reboot])
+grub_TRANSFORM([grub-rpm-sort])
grub_TRANSFORM([grub-script-check])
grub_TRANSFORM([grub-set-default])
grub_TRANSFORM([grub-sparc64-setup])
@@ -89,6 +90,7 @@ grub_TRANSFORM([grub-mkrescue.1])
grub_TRANSFORM([grub-mkstandalone.3])
grub_TRANSFORM([grub-ofpathname.3])
grub_TRANSFORM([grub-probe.3])
+grub_TRANSFORM([grub-rpm-sort.8])
grub_TRANSFORM([grub-reboot.3])
grub_TRANSFORM([grub-render-label.3])
grub_TRANSFORM([grub-script-check.3])
@@ -1543,6 +1545,33 @@ fi
AC_SUBST([LIBDEVMAPPER])
+AC_ARG_ENABLE([rpm-sort],
+ [AS_HELP_STRING([--enable-rpm-sort],
+ [enable native rpm sorting of kernels in grub (default=guessed)])])
+if test x"$enable_rpm-sort" = xno ; then
+ rpm_sort_excuse="explicitly disabled"
+fi
+
+if test x"$rpm_sort_excuse" = x ; then
+ # Check for rpmlib header.
+ AC_CHECK_HEADER([rpm/rpmlib.h], [],
+ [rpm_sort_excuse="need rpm/rpmlib header"])
+fi
+
+if test x"$rpm_sort_excuse" = x ; then
+ # Check for rpm library.
+ AC_CHECK_LIB([rpm], [rpmvercmp], [],
+ [rpm_sort_excuse="rpmlib missing rpmvercmp"])
+fi
+
+if test x"$rpm_sort_excuse" = x ; then
+ LIBRPM="-lrpm";
+ AC_DEFINE([HAVE_RPM], [1],
+ [Define to 1 if you have the rpm library.])
+fi
+
+AC_SUBST([LIBRPM])
+
LIBGEOM=
if test x$host_kernel = xkfreebsd; then
AC_CHECK_LIB([geom], [geom_gettree], [],
diff --git a/util/grub-mkconfig_lib.in b/util/grub-mkconfig_lib.in
index 5c9ed84..e85b60c 100644
--- a/util/grub-mkconfig_lib.in
+++ b/util/grub-mkconfig_lib.in
@@ -213,6 +213,12 @@ version_sort ()
esac
}
+if [ "x$RPMLIB" = x ]; then
+ kernel_sort=version_sort
+else
+ kernel_sort="${sbindir}/grub-rpm-sort"
+fi
+
version_test_numeric ()
{
version_test_numeric_a="$1"
@@ -229,7 +235,7 @@ version_test_numeric ()
version_test_numeric_a="$version_test_numeric_b"
version_test_numeric_b="$version_test_numeric_c"
fi
- if (echo "$version_test_numeric_a" ; echo "$version_test_numeric_b") | version_sort | head -n 1 | grep -qx "$version_test_numeric_b" ; then
+ if (echo "$version_test_numeric_a" ; echo "$version_test_numeric_b") | "$kernel_sort" | head -n 1 | grep -qx "$version_test_numeric_b" ; then
return 0
else
return 1
diff --git a/util/grub-rpm-sort.8 b/util/grub-rpm-sort.8
new file mode 100644
index 0000000..8ce2148
--- /dev/null
+++ b/util/grub-rpm-sort.8
@@ -0,0 +1,12 @@
+.TH GRUB-RPM-SORT 8 "Wed Feb 26 2014"
+.SH NAME
+\fBgrub-rpm-sort\fR \(em Sort input according to RPM version compare.
+
+.SH SYNOPSIS
+\fBgrub-rpm-sort\fR [OPTIONS].
+
+.SH DESCRIPTION
+You should not normally run this program directly. Use grub-mkconfig instead.
+
+.SH SEE ALSO
+.BR "info grub"
diff --git a/util/grub-rpm-sort.c b/util/grub-rpm-sort.c
new file mode 100644
index 0000000..f33bd1e
--- /dev/null
+++ b/util/grub-rpm-sort.c
@@ -0,0 +1,281 @@
+#include <config.h>
+#include <grub/types.h>
+#include <grub/util/misc.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <errno.h>
+#include <assert.h>
+#include <argp.h>
+#include <rpm/rpmlib.h>
+
+static size_t
+read_file (const char *input, char **ret)
+{
+ FILE *in;
+ size_t s;
+ size_t sz = 2048;
+ size_t offset = 0;
+ char *text;
+
+ if (!strcmp(input, "-"))
+ in = stdin;
+ else
+ in = grub_util_fopen(input, "r");
+
+ text = xmalloc (sz);
+
+ if (!in)
+ grub_util_error (_("cannot open `%s': %s"), input, strerror (errno));
+
+ while ((s = fread (text + offset, 1, sz - offset, in)) != 0)
+ {
+ offset += s;
+ if (sz - offset == 0)
+ {
+ sz += 2048;
+ text = xrealloc (text, sz);
+ }
+ }
+
+ text[offset] = '\0';
+ *ret = text;
+
+ if (in != stdin)
+ fclose(in);
+
+ return offset + 1;
+}
+
+/* returns name/version/release */
+/* NULL string pointer returned if nothing found */
+static void
+split_package_string (char *package_string, char **name,
+ char **version, char **release)
+{
+ char *package_version, *package_release;
+
+ /* Release */
+ package_release = strrchr (package_string, '-');
+
+ if (package_release != NULL)
+ *package_release++ = '\0';
+
+ *release = package_release;
+
+ /* Version */
+ package_version = strrchr(package_string, '-');
+
+ if (package_version != NULL)
+ *package_version++ = '\0';
+
+ *version = package_version;
+ /* Name */
+ *name = package_string;
+
+ /* Bubble up non-null values from release to name */
+ if (*name == NULL)
+ {
+ *name = (*version == NULL ? *release : *version);
+ *version = *release;
+ *release = NULL;
+ }
+ if (*version == NULL)
+ {
+ *version = *release;
+ *release = NULL;
+ }
+}
+
+/*
+ * package name-version-release comparator for qsort
+ * expects p, q which are pointers to character strings (char *)
+ * which will not be altered in this function
+ */
+static int
+package_version_compare (const void *p, const void *q)
+{
+ char *local_p, *local_q;
+ char *lhs_name, *lhs_version, *lhs_release;
+ char *rhs_name, *rhs_version, *rhs_release;
+ int vercmpflag = 0;
+
+ local_p = alloca (strlen (*(char * const *)p) + 1);
+ local_q = alloca (strlen (*(char * const *)q) + 1);
+
+ /* make sure these allocated */
+ assert (local_p);
+ assert (local_q);
+
+ strcpy (local_p, *(char * const *)p);
+ strcpy (local_q, *(char * const *)q);
+
+ split_package_string (local_p, &lhs_name, &lhs_version, &lhs_release);
+ split_package_string (local_q, &rhs_name, &rhs_version, &rhs_release);
+
+ /* Check Name and return if unequal */
+ vercmpflag = rpmvercmp ((lhs_name == NULL ? "" : lhs_name),
+ (rhs_name == NULL ? "" : rhs_name));
+ if (vercmpflag != 0)
+ return vercmpflag;
+
+ /* Check version and return if unequal */
+ vercmpflag = rpmvercmp ((lhs_version == NULL ? "" : lhs_version),
+ (rhs_version == NULL ? "" : rhs_version));
+ if (vercmpflag != 0)
+ return vercmpflag;
+
+ /* Check release and return the version compare value */
+ vercmpflag = rpmvercmp ((lhs_release == NULL ? "" : lhs_release),
+ (rhs_release == NULL ? "" : rhs_release));
+
+ return vercmpflag;
+}
+
+static void
+add_input (const char *filename, char ***package_names, size_t *n_package_names)
+{
+ char *orig_input_buffer = NULL;
+ char *input_buffer;
+ char *position_of_newline;
+ char **names = *package_names;
+ char **new_names = NULL;
+ size_t n_names = *n_package_names;
+
+ if (!*package_names)
+ new_names = names = xmalloc (sizeof (char *) * 2);
+
+ if (read_file (filename, &orig_input_buffer) < 2)
+ {
+ if (new_names)
+ free (new_names);
+ if (orig_input_buffer)
+ free (orig_input_buffer);
+ return;
+ }
+
+ input_buffer = orig_input_buffer;
+ while (input_buffer && *input_buffer &&
+ (position_of_newline = strchrnul (input_buffer, '\n')))
+ {
+ size_t sz = position_of_newline - input_buffer;
+ char *new;
+
+ if (sz == 0)
+ {
+ input_buffer = position_of_newline + 1;
+ continue;
+ }
+
+ new = xmalloc (sz+1);
+ strncpy (new, input_buffer, sz);
+ new[sz] = '\0';
+
+ names = xrealloc (names, sizeof (char *) * (n_names + 1));
+ names[n_names] = new;
+ n_names++;
+
+ /* move buffer ahead to next line */
+ input_buffer = position_of_newline + 1;
+ if (*position_of_newline == '\0')
+ input_buffer = NULL;
+ }
+
+ free (orig_input_buffer);
+
+ *package_names = names;
+ *n_package_names = n_names;
+}
+
+static char *
+help_filter (int key, const char *text, void *input __attribute__ ((unused)))
+{
+ return (char *)text;
+}
+
+static struct argp_option options[] = {
+ { 0, }
+};
+
+struct arguments
+{
+ size_t ninputs;
+ size_t input_max;
+ char **inputs;
+};
+
+static error_t
+argp_parser (int key, char *arg, struct argp_state *state)
+{
+ struct arguments *arguments = state->input;
+ switch (key)
+ {
+ case ARGP_KEY_ARG:
+ assert (arguments->ninputs < arguments->input_max);
+ arguments->inputs[arguments->ninputs++] = xstrdup (arg);
+ break;
+ default:
+ return ARGP_ERR_UNKNOWN;
+ }
+ return 0;
+}
+
+static struct argp argp = {
+ options, argp_parser, N_("[INPUT_FILES]"),
+ N_("Sort a list of strings in RPM version sort order."),
+ NULL, help_filter, NULL
+};
+
+int
+main (int argc, char *argv[])
+{
+ struct arguments arguments;
+ char **package_names = NULL;
+ size_t n_package_names = 0;
+ int i;
+
+ grub_util_host_init (&argc, &argv);
+
+ memset (&arguments, 0, sizeof (struct arguments));
+ arguments.input_max = argc+1;
+ arguments.inputs = xmalloc ((arguments.input_max + 1)
+ * sizeof (arguments.inputs[0]));
+ memset (arguments.inputs, 0, (arguments.input_max + 1)
+ * sizeof (arguments.inputs[0]));
+
+ /* Parse our arguments */
+ if (argp_parse (&argp, argc, argv, 0, 0, &arguments) != 0)
+ grub_util_error ("%s", _("Error in parsing command line arguments\n"));
+
+ /* If there's no inputs in argv, add one for stdin */
+ if (!arguments.ninputs)
+ {
+ arguments.ninputs = 1;
+ arguments.inputs[0] = xmalloc (2);
+ strcpy(arguments.inputs[0], "-");
+ }
+
+ for (i = 0; i < arguments.ninputs; i++)
+ add_input(arguments.inputs[i], &package_names, &n_package_names);
+
+ if (package_names == NULL || n_package_names < 1)
+ grub_util_error ("%s", _("Invalid input\n"));
+
+ qsort (package_names, n_package_names, sizeof (char *),
+ package_version_compare);
+
+ /* send sorted list to stdout */
+ for (i = 0; i < n_package_names; i++)
+ {
+ fprintf (stdout, "%s\n", package_names[i]);
+ free (package_names[i]);
+ }
+
+ free (package_names);
+ for (i = 0; i < arguments.ninputs; i++)
+ free (arguments.inputs[i]);
+
+ free (arguments.inputs);
+
+ return 0;
+}
--
2.4.3