1 files changed, 362 insertions, 0 deletions
diff --git a/system-settings/plugins/ifcfg-rh/utils.c b/system-settings/plugins/ifcfg-rh/utils.c
new file mode 100644
index 000000000..92a0b802f
--- /dev/null
+++ b/system-settings/plugins/ifcfg-rh/utils.c
@@ -0,0 +1,362 @@
+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
+/* NetworkManager system settings service
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * (C) Copyright 2008 - 2010 Red Hat, Inc.
+ */
+
+#include <glib.h>
+#include <stdlib.h>
+#include <string.h>
+#include "utils.h"
+#include "shvar.h"
+
+/*
+ * utils_bin2hexstr
+ *
+ * Convert a byte-array into a hexadecimal string.
+ *
+ * Code originally by Alex Larsson <alexl@redhat.com> and
+ *  copyright Red Hat, Inc. under terms of the LGPL.
+ *
+ */
+char *
+utils_bin2hexstr (const char *bytes, int len, int final_len)
+{
+	static char hex_digits[] = "0123456789abcdef";
+	char *result;
+	int i;
+	gsize buflen = (len * 2) + 1;
+
+	g_return_val_if_fail (bytes != NULL, NULL);
+	g_return_val_if_fail (len > 0, NULL);
+	g_return_val_if_fail (len < 4096, NULL);   /* Arbitrary limit */
+	if (final_len > -1)
+		g_return_val_if_fail (final_len < buflen, NULL);
+
+	result = g_malloc0 (buflen);
+	for (i = 0; i < len; i++)
+	{
+		result[2*i] = hex_digits[(bytes[i] >> 4) & 0xf];
+		result[2*i+1] = hex_digits[bytes[i] & 0xf];
+	}
+	/* Cut converted key off at the correct length for this cipher type */
+	if (final_len > -1)
+		result[final_len] = '\0';
+	else
+		result[buflen - 1] = '\0';
+
+	return result;
+}
+
+/* From hostap, Copyright (c) 2002-2005, Jouni Malinen <jkmaline@cc.hut.fi> */
+
+static int hex2num (char c)
+{
+	if (c >= '0' && c <= '9')
+		return c - '0';
+	if (c >= 'a' && c <= 'f')
+		return c - 'a' + 10;
+	if (c >= 'A' && c <= 'F')
+		return c - 'A' + 10;
+	return -1;
+}
+
+static int hex2byte (const char *hex)
+{
+	int a, b;
+	a = hex2num(*hex++);
+	if (a < 0)
+		return -1;
+	b = hex2num(*hex++);
+	if (b < 0)
+		return -1;
+	return (a << 4) | b;
+}
+
+char *
+utils_hexstr2bin (const char *hex, size_t len)
+{
+	size_t       i;
+	int          a;
+	const char * ipos = hex;
+	char *       buf = NULL;
+	char *       opos;
+
+	/* Length must be a multiple of 2 */
+	if ((len % 2) != 0)
+		return NULL;
+
+	opos = buf = g_malloc0 ((len / 2) + 1);
+	for (i = 0; i < len; i += 2) {
+		a = hex2byte (ipos);
+		if (a < 0) {
+			g_free (buf);
+			return NULL;
+		}
+		*opos++ = a;
+		ipos += 2;
+	}
+	return buf;
+}
+
+/* End from hostap */
+
+/*
+ * Check ';[a-fA-F0-9]{8}' file suffix used for temporary files by rpm when
+ * installing packages.
+ *
+ * Implementation taken from upstart.
+ */
+static gboolean
+check_rpm_temp_suffix (const char *path)
+{
+	const char *ptr;
+
+	g_return_val_if_fail (path != NULL, FALSE);
+
+	/* Matches *;[a-fA-F0-9]{8}; used by rpm */
+	ptr = strrchr (path, ';');
+	if (ptr && (strspn (ptr + 1, "abcdefABCDEF0123456789") == 8)
+	    && (! ptr[9]))
+		return TRUE;
+	return FALSE;
+}
+
+static gboolean
+check_suffix (const char *base, const char *tag)
+{
+	int len, tag_len;
+
+	g_return_val_if_fail (base != NULL, TRUE);
+	g_return_val_if_fail (tag != NULL, TRUE);
+
+	len = strlen (base);
+	tag_len = strlen (tag);
+	if ((len > tag_len) && !strcasecmp (base + len - tag_len, tag))
+		return TRUE;
+	return FALSE;
+}
+
+gboolean
+utils_should_ignore_file (const char *filename, gboolean only_ifcfg)
+{
+	char *base;
+	gboolean ignore = TRUE;
+	gboolean is_ifcfg = FALSE;
+	gboolean is_other = FALSE;
+
+	g_return_val_if_fail (filename != NULL, TRUE);
+
+	base = g_path_get_basename (filename);
+	g_return_val_if_fail (base != NULL, TRUE);
+
+	/* Only handle ifcfg, keys, and routes files */
+	if (!strncmp (base, IFCFG_TAG, strlen (IFCFG_TAG)))
+		is_ifcfg = TRUE;
+
+	if (only_ifcfg == FALSE) {
+		if (   !strncmp (base, KEYS_TAG, strlen (KEYS_TAG))
+		    || !strncmp (base, ROUTE_TAG, strlen (ROUTE_TAG))
+		    || !strncmp (base, ROUTE6_TAG, strlen (ROUTE6_TAG)))
+				is_other = TRUE;
+	}
+
+	/* But not those that have certain suffixes */
+	if (   (is_ifcfg || is_other)
+	    && !check_suffix (base, BAK_TAG)
+	    && !check_suffix (base, TILDE_TAG)
+	    && !check_suffix (base, ORIG_TAG)
+	    && !check_suffix (base, REJ_TAG)
+	    && !check_suffix (base, RPMNEW_TAG)
+	    && !check_suffix (base, AUGNEW_TAG)
+	    && !check_suffix (base, AUGTMP_TAG)
+	    && !check_rpm_temp_suffix (base))
+		ignore = FALSE;
+
+	g_free (base);
+	return ignore;
+}
+
+char *
+utils_cert_path (const char *parent, const char *suffix)
+{
+	const char *name;
+	char *dir, *path;
+
+	g_return_val_if_fail (parent != NULL, NULL);
+	g_return_val_if_fail (suffix != NULL, NULL);
+
+	name = utils_get_ifcfg_name (parent, FALSE);
+	dir = g_path_get_dirname (parent);
+	path = g_strdup_printf ("%s/%s-%s", dir, name, suffix);
+	g_free (dir);
+	return path;
+}
+
+const char *
+utils_get_ifcfg_name (const char *file, gboolean only_ifcfg)
+{
+	const char *name = NULL, *start = NULL;
+	char *base;
+
+	g_return_val_if_fail (file != NULL, NULL);
+
+	base = g_path_get_basename (file);
+	if (!base)
+		return NULL;
+
+	/* Find the point in 'file' where 'base' starts.  We use 'file' since it's
+	 * const and thus will survive after we free 'base'.
+	 */
+	start = file + strlen (file) - strlen (base);
+	g_assert (strcmp (start, base) == 0);
+	g_free (base);
+
+	if (!strncmp (start, IFCFG_TAG, strlen (IFCFG_TAG)))
+		name = start + strlen (IFCFG_TAG);
+	else if (only_ifcfg == FALSE)  {
+		if (!strncmp (start, KEYS_TAG, strlen (KEYS_TAG)))
+			name = start + strlen (KEYS_TAG);
+		else if (!strncmp (start, ROUTE_TAG, strlen (ROUTE_TAG)))
+			name = start + strlen (ROUTE_TAG);
+		else if (!strncmp (start, ROUTE6_TAG, strlen (ROUTE6_TAG)))
+			name = start + strlen (ROUTE6_TAG);
+	}
+
+	return name;
+}
+
+/* Used to get any ifcfg/extra file path from any other ifcfg/extra path
+ * in the form <tag><name>.
+ */
+static char *
+utils_get_extra_path (const char *parent, const char *tag)
+{
+	char *item_path = NULL, *dirname;
+	const char *name;
+
+	g_return_val_if_fail (parent != NULL, NULL);
+	g_return_val_if_fail (tag != NULL, NULL);
+
+	dirname = g_path_get_dirname (parent);
+	if (!dirname)
+		return NULL;
+
+	name = utils_get_ifcfg_name (parent, FALSE);
+	if (name) {
+		if (!strcmp (dirname, "."))
+			item_path = g_strdup_printf ("%s%s", tag, name);
+		else
+			item_path = g_strdup_printf ("%s/%s%s", dirname, tag, name);
+	}
+	g_free (dirname);
+
+	return item_path;
+}
+
+char *
+utils_get_ifcfg_path (const char *parent)
+{
+	return utils_get_extra_path (parent, IFCFG_TAG);
+}
+
+char *
+utils_get_keys_path (const char *parent)
+{
+	return utils_get_extra_path (parent, KEYS_TAG);
+}
+
+char *
+utils_get_route_path (const char *parent)
+{
+	return utils_get_extra_path (parent, ROUTE_TAG);
+}
+
+char *
+utils_get_route6_path (const char *parent)
+{
+	return utils_get_extra_path (parent, ROUTE6_TAG);
+}
+
+shvarFile *
+utils_get_extra_ifcfg (const char *parent, const char *tag, gboolean should_create)
+{
+	shvarFile *ifcfg = NULL;
+	char *path;
+
+	path = utils_get_extra_path (parent, tag);
+	if (!path)
+		return NULL;
+
+	if (should_create && !g_file_test (path, G_FILE_TEST_EXISTS))
+		ifcfg = svCreateFile (path);
+
+	if (!ifcfg)
+		ifcfg = svNewFile (path);
+
+	g_free (path);
+	return ifcfg;
+}
+
+shvarFile *
+utils_get_keys_ifcfg (const char *parent, gboolean should_create)
+{
+	return utils_get_extra_ifcfg (parent, KEYS_TAG, should_create);
+}
+
+shvarFile *
+utils_get_route_ifcfg (const char *parent, gboolean should_create)
+{
+	return utils_get_extra_ifcfg (parent, ROUTE_TAG, should_create);
+}
+
+shvarFile *
+utils_get_route6_ifcfg (const char *parent, gboolean should_create)
+{
+	return utils_get_extra_ifcfg (parent, ROUTE6_TAG, should_create);
+}
+
+/* Finds out if route file has new or older format
+ * Returns TRUE  - new syntax (ADDRESS<n>=a.b.c.d ...), error opening file or empty
+ *         FALSE - older syntax, i.e. argument to 'ip route add' (1.2.3.0/24 via 11.22.33.44)
+ */
+gboolean
+utils_has_route_file_new_syntax (const char *filename)
+{
+	char *contents = NULL;
+	gsize len = 0;
+	gboolean ret = FALSE;
+	const char *pattern = "^[[:space:]]*ADDRESS[0-9]+=";
+
+	g_return_val_if_fail (filename != NULL, TRUE);
+
+	if (!g_file_get_contents (filename, &contents, &len, NULL))
+		return TRUE;
+
+	if (len <= 0) {
+		ret = TRUE;
+		goto gone;
+	}
+
+	if (g_regex_match_simple (pattern, contents, G_REGEX_MULTILINE, 0))
+		ret = TRUE;
+
+gone:
+	g_free (contents);
+	return ret;
+}
+